CA2450735A1 - Integrated adjustable lumbar support and trim attachment system - Google Patents
Integrated adjustable lumbar support and trim attachment system Download PDFInfo
- Publication number
- CA2450735A1 CA2450735A1 CA002450735A CA2450735A CA2450735A1 CA 2450735 A1 CA2450735 A1 CA 2450735A1 CA 002450735 A CA002450735 A CA 002450735A CA 2450735 A CA2450735 A CA 2450735A CA 2450735 A1 CA2450735 A1 CA 2450735A1
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- CA
- Canada
- Prior art keywords
- support
- linkage
- floating
- lumbar support
- adjustable lumbar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
- B60N2/6673—Lumbar supports having flexible support member bowed by applied forces with motor driven adjustments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
- B60N2/6671—Lumbar supports having flexible support member bowed by applied forces with cable actuators
Abstract
An adjustable lumbar support (10) adapted to be integrated into new or existing seat structures. Adjustable lumbar support (10) includes a floating plate (15) supported by a support linkage. In one embodiment, the support linkage is defined by first and second spring members (25) and (26) which engage the seat frame. In an alternate embodiment, the support linkage is defined by first and second spring members (25) and (26) engaged with first and second linkage members (52), respectively, and includes a rotary power mechanism (50) for applying a rotating motion to a shaft (54) threadably engaged with first and second linkage members (52). The degree of support provided by floating plate (15) is adjusted by adjusting the effective length of the support linkage. Lumbar support mechanism (10) can be mounted in a seat back alone or in conjunction with an integral trim attachment array (70). Trim attachment array (70) is adapted to replace the trim wires molded into the cushion foam of a standard seat.
Description
[0001] This application claims the benefit of U.S. Provisional Application 6 No. 60/304,504, filed July 11, 2001.
9 [0002] Not Applicable BACKGROUND OF THE INVENTION
11 1. Field of Invention 12 [0003] The present invention relates generally to seats, including vehicular 13 seats. More particularly, the present invention relates to an insert for seats that 14 provides adjustable lumbar support to a seat occupant.
2. Description of the Related Art 16 [0004] It is well-recognized that a person sitting in a seat for an extended 17 time period may desire additional support to obtain greater seat comfort and/or 18 alleviate seat discomfort. Vehicle operators, vehicle passengers, and people 19 whose jobs require them to be seated for extended periods of time are typically chief among those individuals who seek such additional support. The support is 21 typically desired to provide greater comfort in the lower or the lumbar region of 22 the back. As used herein, the term "seat" applies to a variety of seat structures, 23 including chairs and vehicular seats.
24 [0005] The discomfort problem has been addressed in the prior art in several ways. A simple, although not complete, solution is to utilize a pillow 26 placed low in the seat against the back thereof. By configuring the pillow into 27 different shapes, a variation in lumbar support can be achieved. More permanent 28 solutions to lumbar support problems have also been addressed, for example, in 29 U.S. Pat. No. 5,076,643 issued to A. Colasanti, et al., on Dec. 31, 1993;
and U.S.
Pat. No. 5,190,348 issued to A. Colasanti on Mar. 2, 1993.
1 [0006] Both of the devices described in the '643 and '348 patents are of 2 complex construction and require substantial time and cost for fabrication and 3 installation. The requirements for the installation of a mounting plate, as well as 4 the inter-securement of the bladder and plate elements, are primary reasons for the high cost, complexity of construction and the need of substantial time for the 6 manufacture and installation of each device.
7 [OOOT] Other devices are also known in the art. Among these other devices 8 are those disclosed in U.S. Pat. No. 4,567,615 issued to H. Fanti on Feb. 4, 1986, 9 and U.S. Patent No. 6,056,360, issued on May 2, 2000, to the predecessor in interest of the assignee of the present application, discloses a lumbar support 1 l system comprising unitary and divided leaf members. This device proved to be 12 complicated and costly to manufacture.
13 [0008] It is also known, in the art of vehicular seats, that seat trim is 14 attached to standard trim wires, which are typically molded in the seat back and cushion foam, which provide trim cover attachment points via mechanical 16 fasteners such as hog rings. What is needed, and is missing from the art, is a 17 lumbar support which is integral with a trim attachment array.
18 [0009] Accordingly, it is an object of the present invention to provide an 19 adjustable lumbar support for seats that can be installed with a minimum of labor.
21 [0010] It is also an object of the present invention to provide an adjustable 22 lumbar support that utilizes a floating plate that "self centers" or "self aligns"
23 offering firm yet compliant support and that "moves" with the occupant.
24 [0011] It is another object of the present invention to provide an adjustable lumbar support which is regulable using different regulation mechanisms.
26 [0012] Further, it is an object of the present invention to provide an 27 adjustable lumbar support which can be installed alone or in conjunction with a 28 trim attachment array.
29 [0013] Still another object of the present invention is to provide a lumbar support that can be integral with a trim attachment array.
31 [0014] Yet another object of the present invention is to provide a lumbar 32 support that is integral with a seat suspension.
1 [0015] These and other objects of the present invention will become 2 apparent upon a consideration of the drawings referred to hereinafter, and a 3 complete description thereof.
BRIEF SUMMARY OF THE INVENTION
6 [0016] An adjustable lumbar support mechanism, constructed in 7 accordance with the present invention, is provided which provides advantages 8 over the prior art. The adjustable lumbar support can be easily integrated into a 9 seat structure either alone or in conjunction with an integral trim attachment to array. The adjustable lumbar support includes a floating plate that "self centers"
11 or "self aligns" offering firm yet compliant support and that "moves" with the 12 occupant and is fully sprung, so as not to interfere with state of the art vibration 13 insulation aspects of a seat, especially a vehicle seat. The floating support plate 14 includes a curved front surface used to achieve lumbar support for a seat.
The 1 5 floating support plate is supported by a support linkage which includes first and 16 second spring members that are engaged with the seat frame. The degree of 17 lumbar support is adjusted by altering the effective length of the support linkage.
18 A manual adjustment is provided for as well as a power adjustment. The powered 19 embodiment is fully adaptable with "memory seating", wherein the memory 20 function is provided by means of hall effect pulse counting of motor rotations or 21 simple potentiometer based sensors as is readily known to those skilled in the 22 art.
23 [001?] The integral trim attachment array of the present invention is 24 adapted to replace the standard trim wires which are molded into the seat back 25 and cushion foam of a standard, state-of the-art vehicle seat. The integral trim 26 attachment array is defined by a trim ring having integrated pinch clips.
The trim 27 ring has a rectilinear configuration adapted to conform to the outline of a 28 selected seat back or cushion foam. Linkages are provided for linking a plurality 29 of trim rings together or for linking the trim ring to the floating support plate.
30 Additionally, the floating support plate could be fashioned with integrated pinch 31 clips to provide additional points of attachment for the seat trim. The pinch clips 32 are adapted to secure the listing wires in the trim assembly to the face of the 33 seat.
2 [0018) The above-mentioned features of the invention will become more 3 clearly understood from the following detailed description of the invention read 4 together with the drawings in which:
Figure 1 is a front elevation view of the manually adjustable lumbar 6 support mechanism of the present invention.
7 Figure 2 is a top plan view of the manually adjustable lumbar support 8 mechanism of the present invention showing the lumbar support mechanism in 9 the retracted position, it being understood that the retracted position is the position that provides the least amount of lumbar support.
11 Figure 3 is a top plan view of the manually adjustable lumbar support 12 mechanism of the present invention showing the lumbar support mechanism in 13 the extended position, it being understood that the extended position is the 14 position that provides the greatest degree of lumbar support.
Figure 4 is a rear elevation view of the manually adjustable lumbar 16 support mechanism of the present invention.
17 Figure 5 is a front elevation view of an alternate embodiment of the 18 adjustable lumbar support mechanism of the present invention which uses an 19 electrically powered rotary mechanism for adjusting the lumbar support between the extended and retracted positions.
21 Figure 6 is a top plan view of the electrically powered embodiment of the 22 lumbar support mechanism of the present invention showing the lumbar support 23 mechanism in the retracted position.
24 Figure 7 is a rear elevation view of the electrically powered embodiment of the lumbar support mechanism of the present invention showing the lumbar 26 support mechanism in the extended position.
27 Figure 8 is a rear elevation view of the electrically powered embodiment of 28 the lumbar support mechanism of the present invention.
1 Figure 9 is a side elevation view of the lumbar support mechanism of the 2 present invention, along with the integrated trim attachment system positioned 3 within a typical seatback cushion (shown in phantom).
4 Figure 10 is a rear elevation view of the lumbar support mechanism and integrated trim attachment system shown in Figure 9.
6 Figure 11 is a rear elevation view illustrating the mounting of the lumbar 7 support mechanism in a seat frame.
8 Figure 12A and 12B show perspective detail views of a portion of the trim 9 ring showing a repair clip and a receptor for the repair clip.
Figure 13A and 13B show an alternate embodiment of the lumbar support 1 1 mechanism of the present invention for mounting the lumbar support 12 mechanism to the foam cushion of a seat back.
14 [0019] An adjustable lumbar support mechanism, constructed in accordance with the present invention, is illustrated generally as 10 in the 16 figures. The adjustable lumbar support 10 provides a lumbar support 17 mechanism which is adapted to be easily integrated into new or existing seat 18 structures with minimal efforts and minimal costs. Moreover, in the preferred 19 embodiment, the adjustable lumbar support 10 enables discrete regulation of the degree seat support provided to an individual's lumbar spine area and, thereby, 21 maximizes the individual's comfort while occupying a seat. The lumbar support 22 10 includes a floating plate that "self centers" or "self aligns" offering firm yet 23 compliant support and that "moves" with the occupant and is fully sprung, so as 24 not to interfere with state of the art vibration insulation aspects of a seat, especially a vehicle seat.
26 [0020] Figures 1-4 illustrate one configuration of a floating support plate 27 15 having a curved front surface 16 used to achieve lumbar support for a seat.
28 In this embodiment, the floating support plate 15 is supported by a support 29 linkage. The support linkage is positioned with respect to the floating support plate 15 so as to support the floating support plate 15 in a pivotal manner.
In 31 this manner the floating support plate is self centering and self aligns itself with 1 the occupant's back. In this embodiment, the support linkage is defined by a 2 cable member 21 and first and second spring members 25 and 26 which engage 3 the seat frame, as best seen in Figure 11. In this regard, the cable member 4 includes a terminal end which is secured to first spring member 25. Second spring member 26 is adapted to allow passage of the cable member 21 through 6 the spring member 26 to a mechanism, such as handle 30 adapted for adjusting 7 the amount of support provided by the floating support plate 15. It will be 8 appreciated that the cable member 21 slides in a flexible guide tube 22 which 9 serves as a cable housing.
[0021] In this embodiment, the flexible guide tube 22 is secured to the rear 11 surface 18 of the floating support plate 15. In the preferred embodiment, at least 12 one projection 35 extends from the rear surface 18 of the floating support plate 13 15. The projection 35 preferably includes a groove 38 for receiving the flexible 14 guide tube 22 in a manner that substantially secures the flexible guide tube 22 to the floating support plate 15. In this manner, the floating support plate 16 floats on the cable member 21 and the cable member 21 is allowed to slide freely 17 through the flexible guide tube 22. Alternatively, a conduit for the cable member 18 21 could be integral with the floating support plate 15. The amount of lumbar.
19 support provided by the floating support plate 15 is determined by the effective length of the support linkage defined by the length of the cable member 21 21 disposed between the first and second spring members 25 and 26. In this 22 regard, an actuator mechanism 30, adapted to apply and release force, is fixed to 23 the cable member 21. For instance, a manual control handle 32 could be 24 utilized. In this regard, the handle 32 receives the second end 4.0 of the cable member 21 such that rotation of the handle 116 moves the cable member 21 26 within the flexible guide tube 22, either shortening or lengthening the effective 27 length of the cable 21 between the first and second spring members 25 and 26.
28 As can be seen in Figures 2 and 3, as the effective length of the cable member 21 29 between the first and second spring members 25 and 26 is shortened, the degree of lumbar support provided by the floating support plate 15 is increased.
Other 31 manual or motorized actuators are foreseeable, as well. For instance, the cable 32 can be motor driven. Alternatively, a direct drive strap system could be utilized, 33 thus eliminating the need for a remote driven cable.
1 [0022] Typically the floating support plate 15 is, preferably, fabricated 2 from a substantially rigid material such as plastic. The floating support plate 15 3 could also be flexible to offer more resilient support. Of course, those skilled in 4 the art will recognize that the curved support member could be fabricated from other rigid, preferably lightweight, materials, such as composites or metals.
Also, 6 while the figures illustrate a plurality of cutouts disposed in the upper curved 7 surface 16 of the floating support plate 15, which are provided for weight 8 reduction, it will be appreciated that the upper curved surface 16 could be 9 substantially solid.
[0023] The floating plate can float or be fixed to the foam directly. In this 1 1 regard, as seen in Figures 13A and 13B, an alternate embodiment of floating 12 support plate, illustrated as 10" is provided with a plurality of notches 13 disposed in the front surface 16 having at least a pair of inward projecting tabs 14 43. In this regard, the inward projecting tabs 43 are adapted to "pinch"
projections 45, which are molded in the back of the foam which forms the seat 16 cushion. Further, the floating support plate 15 could be molded into the 17 seatback foam cushion. Other mechanisms for holding the floating support plate 18 15 will be discussed in greater detail below.
19 [0024] Figures 5-8 illustrate an alternate embodiment of the lumbar support mechanism 10' which includes floating support plate 15' which is 21 actuated by an electrically powered rotary power mechanism 50. In this powered 22 embodiment, the support linkage is defined by first and second spring members 23 25 engaged with first and second linkage members 52, respectively. The rotary 24 power mechanism 50 applies rotating motion to a shaft 54 that is threaded on opposite ends 53, 55. One end is provided with a right hand thread and the 26 other end is provided with a left hand thread. First and second linkage members 27 52 include threaded nuts 56 which engage the ends 53 and 55 of the shaft 54.
28 Rotation of the shaft in a first direction will draw the first and second linkage 29 members 52 inward, thus shortening the effective length of the support linkage as seen in FIG. 8. Contrariwise, rotation of the shaft 54 in the opposite direction 31 will move the first and second linkage members 52, outward, thus lengthening 32 the effective length of the support linkage as illustrated in Figure 7. The rotary 33 power mechanism 50 may require a shut-off switch depending upon the gear 34 ratios and stall forces as will be readily recognized by those skilled in the art. It 1 will be appreciated by those skilled in the art that both the manual embodiment 2 and the powered embodiment are fully modular. Additionally, those skilled in the 3 art will readily appreciate that the powered embodiment is fully adaptable with 4 "memory seating", wherein the memory function is provided by means of hall effect pulse counting of motor rotations or simple potentiometer based sensors as 6 is readily known to those skilled in the art.
7 (0025] While the lumbar support mechanism 10 or 10' can be mounted in 8 a state of the art seat back and suspension, as illustrated in Fig. 11, it can also 9 be mounted alone. Additionally, the lumbar support mechanism 10 and 10' can also be mounted in conjunction with an integral trim attachment array ?0 as 1 l illustrated in Figures 9 and 10. In this regard, the integral trim attachment array 12 70 of the present invention is adapted to replace the standard trim wires which 13 are molded into the seat back and cushion foam of a standard, state-of the-art 14 vehicle seat. The integral trim attachment array ?0 is defined by a trim ring ?3 having integrated pinch clips T6. The trim ring preferably has a rectilinear 16 configuration adapted to conform to the outline of a selected seat back or 17 cushion foam. The trim ring ?3 is, preferably, molded into the seat back or 18 cushion foam as will be understood by those skilled in the art. Linkages ?9 are i9 utilized to link a plurality of trim rings T3 together or to link trim ring ?3 to the floating support plate 10 as shown in Figures 9 and 10. Additionally, the floating 21 support plate could be fashioned with integrated pinch clips ?6 to provide 22 additional points of attachment for the seat trim (not shown). The pinch clips ?6 23 are adapted to secure the listing wires in the trim assembly to the face of the 24 seat.
[0026] The system of the present invention integrates the trim attachment 26 array ?0 and the lumbar support mechanism 10 and thus allows the lumbar 27 support mechanism 10 to be molded into the seat back foam. This creates 28 certain unexpected advantages. Namely, molding the lumbar support mechanism 29 10 into the foam allows for deeper foam at the highest point of pressure on the occupants back. Additionally, the integration of the foam and the trim 31 attachment array 70 yields a cleaner appearance of the seat back and also 32 creates a more subtle contouring of the lumbar support with the seatback thus 33 creating a cleaner appearance and also creating a more gradual shape change in 34 the back rather than an abrupt support sensation, thereby being more 1 transparent to the occupant of the seat. As seen in greater detail in Figure 13, 2 the trim ring also includes a plurality of repair hole members 82 which are 3 adapted for receiving a repair pinch clip 85. The repair pinch clip 85 includes 4 flanges 88 as are known in the art to substantially impede removal of the repair pinch clip 85 from the repair hole member 82. The repair pinch clip 85 also 6 includes a key 88 which cooperates with a keyway 94, disposed in the repair 7 hole member 82 so as to substantially prevent rotation of the repair pinch clip 8 85 within the repair hole member 82. It will be appreciated by those skilled in 9 the art that this combination of repair hole members 82 and repair pinch clips 85 facilitates rapid repair of an inadvertently broken integrated pinch clip 11 during the assembly process.
12 [002?] From the foregoing description, it will be recognized by those 13 skilled in the art that an improved lumbar support mechanism, and an 14 integrated trim attachment system, have been provided. In this regard, the i5 present invention provides an adjustable lumbar support for seats which is 16 regulable using different regulation mechanisms, such as manual regulation 17 mechanisms and power mechanisms. Further, the present invention provides a 18 floating plate that "self centers" or "self aligns" offering firm yet compliant i9 support and that "moves" with the occupant and which is fully sprung, so as not to interfere with state of the art vibration insulation aspects of a seat, especially a 2 1 vehicle seat. It will be appreciated that this configuration alleviates the pressure 22 on the user's lower back and kidney region associated with some conventional 23 lumbar supports. Additionally, the present invention provides a trim attachment 24 array that reduces the need for trim wires to be molded into the seat foam and further eliminate the need for secondary fasteners, such as hog rings.
26 [0028] While the present invention has been illustrated by description of 27 several embodiments and while the illustrative embodiments have been described 28 in considerable detail, it is not the intention of the applicant to restrict or in any 29 way limit the scope of the appended claims to such detail. Additional advantages 3o and modifications will readily appear to those skilled in the art. The invention in 31 its broader aspects is therefore not limited to the specific details, representative 32 apparatus and methods, and illustrative examples shown and described.
33 Accordingly, departures may be made from such details without departing from 34 the spirit or scope of applicant's general inventive concept.
9 [0002] Not Applicable BACKGROUND OF THE INVENTION
11 1. Field of Invention 12 [0003] The present invention relates generally to seats, including vehicular 13 seats. More particularly, the present invention relates to an insert for seats that 14 provides adjustable lumbar support to a seat occupant.
2. Description of the Related Art 16 [0004] It is well-recognized that a person sitting in a seat for an extended 17 time period may desire additional support to obtain greater seat comfort and/or 18 alleviate seat discomfort. Vehicle operators, vehicle passengers, and people 19 whose jobs require them to be seated for extended periods of time are typically chief among those individuals who seek such additional support. The support is 21 typically desired to provide greater comfort in the lower or the lumbar region of 22 the back. As used herein, the term "seat" applies to a variety of seat structures, 23 including chairs and vehicular seats.
24 [0005] The discomfort problem has been addressed in the prior art in several ways. A simple, although not complete, solution is to utilize a pillow 26 placed low in the seat against the back thereof. By configuring the pillow into 27 different shapes, a variation in lumbar support can be achieved. More permanent 28 solutions to lumbar support problems have also been addressed, for example, in 29 U.S. Pat. No. 5,076,643 issued to A. Colasanti, et al., on Dec. 31, 1993;
and U.S.
Pat. No. 5,190,348 issued to A. Colasanti on Mar. 2, 1993.
1 [0006] Both of the devices described in the '643 and '348 patents are of 2 complex construction and require substantial time and cost for fabrication and 3 installation. The requirements for the installation of a mounting plate, as well as 4 the inter-securement of the bladder and plate elements, are primary reasons for the high cost, complexity of construction and the need of substantial time for the 6 manufacture and installation of each device.
7 [OOOT] Other devices are also known in the art. Among these other devices 8 are those disclosed in U.S. Pat. No. 4,567,615 issued to H. Fanti on Feb. 4, 1986, 9 and U.S. Patent No. 6,056,360, issued on May 2, 2000, to the predecessor in interest of the assignee of the present application, discloses a lumbar support 1 l system comprising unitary and divided leaf members. This device proved to be 12 complicated and costly to manufacture.
13 [0008] It is also known, in the art of vehicular seats, that seat trim is 14 attached to standard trim wires, which are typically molded in the seat back and cushion foam, which provide trim cover attachment points via mechanical 16 fasteners such as hog rings. What is needed, and is missing from the art, is a 17 lumbar support which is integral with a trim attachment array.
18 [0009] Accordingly, it is an object of the present invention to provide an 19 adjustable lumbar support for seats that can be installed with a minimum of labor.
21 [0010] It is also an object of the present invention to provide an adjustable 22 lumbar support that utilizes a floating plate that "self centers" or "self aligns"
23 offering firm yet compliant support and that "moves" with the occupant.
24 [0011] It is another object of the present invention to provide an adjustable lumbar support which is regulable using different regulation mechanisms.
26 [0012] Further, it is an object of the present invention to provide an 27 adjustable lumbar support which can be installed alone or in conjunction with a 28 trim attachment array.
29 [0013] Still another object of the present invention is to provide a lumbar support that can be integral with a trim attachment array.
31 [0014] Yet another object of the present invention is to provide a lumbar 32 support that is integral with a seat suspension.
1 [0015] These and other objects of the present invention will become 2 apparent upon a consideration of the drawings referred to hereinafter, and a 3 complete description thereof.
BRIEF SUMMARY OF THE INVENTION
6 [0016] An adjustable lumbar support mechanism, constructed in 7 accordance with the present invention, is provided which provides advantages 8 over the prior art. The adjustable lumbar support can be easily integrated into a 9 seat structure either alone or in conjunction with an integral trim attachment to array. The adjustable lumbar support includes a floating plate that "self centers"
11 or "self aligns" offering firm yet compliant support and that "moves" with the 12 occupant and is fully sprung, so as not to interfere with state of the art vibration 13 insulation aspects of a seat, especially a vehicle seat. The floating support plate 14 includes a curved front surface used to achieve lumbar support for a seat.
The 1 5 floating support plate is supported by a support linkage which includes first and 16 second spring members that are engaged with the seat frame. The degree of 17 lumbar support is adjusted by altering the effective length of the support linkage.
18 A manual adjustment is provided for as well as a power adjustment. The powered 19 embodiment is fully adaptable with "memory seating", wherein the memory 20 function is provided by means of hall effect pulse counting of motor rotations or 21 simple potentiometer based sensors as is readily known to those skilled in the 22 art.
23 [001?] The integral trim attachment array of the present invention is 24 adapted to replace the standard trim wires which are molded into the seat back 25 and cushion foam of a standard, state-of the-art vehicle seat. The integral trim 26 attachment array is defined by a trim ring having integrated pinch clips.
The trim 27 ring has a rectilinear configuration adapted to conform to the outline of a 28 selected seat back or cushion foam. Linkages are provided for linking a plurality 29 of trim rings together or for linking the trim ring to the floating support plate.
30 Additionally, the floating support plate could be fashioned with integrated pinch 31 clips to provide additional points of attachment for the seat trim. The pinch clips 32 are adapted to secure the listing wires in the trim assembly to the face of the 33 seat.
2 [0018) The above-mentioned features of the invention will become more 3 clearly understood from the following detailed description of the invention read 4 together with the drawings in which:
Figure 1 is a front elevation view of the manually adjustable lumbar 6 support mechanism of the present invention.
7 Figure 2 is a top plan view of the manually adjustable lumbar support 8 mechanism of the present invention showing the lumbar support mechanism in 9 the retracted position, it being understood that the retracted position is the position that provides the least amount of lumbar support.
11 Figure 3 is a top plan view of the manually adjustable lumbar support 12 mechanism of the present invention showing the lumbar support mechanism in 13 the extended position, it being understood that the extended position is the 14 position that provides the greatest degree of lumbar support.
Figure 4 is a rear elevation view of the manually adjustable lumbar 16 support mechanism of the present invention.
17 Figure 5 is a front elevation view of an alternate embodiment of the 18 adjustable lumbar support mechanism of the present invention which uses an 19 electrically powered rotary mechanism for adjusting the lumbar support between the extended and retracted positions.
21 Figure 6 is a top plan view of the electrically powered embodiment of the 22 lumbar support mechanism of the present invention showing the lumbar support 23 mechanism in the retracted position.
24 Figure 7 is a rear elevation view of the electrically powered embodiment of the lumbar support mechanism of the present invention showing the lumbar 26 support mechanism in the extended position.
27 Figure 8 is a rear elevation view of the electrically powered embodiment of 28 the lumbar support mechanism of the present invention.
1 Figure 9 is a side elevation view of the lumbar support mechanism of the 2 present invention, along with the integrated trim attachment system positioned 3 within a typical seatback cushion (shown in phantom).
4 Figure 10 is a rear elevation view of the lumbar support mechanism and integrated trim attachment system shown in Figure 9.
6 Figure 11 is a rear elevation view illustrating the mounting of the lumbar 7 support mechanism in a seat frame.
8 Figure 12A and 12B show perspective detail views of a portion of the trim 9 ring showing a repair clip and a receptor for the repair clip.
Figure 13A and 13B show an alternate embodiment of the lumbar support 1 1 mechanism of the present invention for mounting the lumbar support 12 mechanism to the foam cushion of a seat back.
14 [0019] An adjustable lumbar support mechanism, constructed in accordance with the present invention, is illustrated generally as 10 in the 16 figures. The adjustable lumbar support 10 provides a lumbar support 17 mechanism which is adapted to be easily integrated into new or existing seat 18 structures with minimal efforts and minimal costs. Moreover, in the preferred 19 embodiment, the adjustable lumbar support 10 enables discrete regulation of the degree seat support provided to an individual's lumbar spine area and, thereby, 21 maximizes the individual's comfort while occupying a seat. The lumbar support 22 10 includes a floating plate that "self centers" or "self aligns" offering firm yet 23 compliant support and that "moves" with the occupant and is fully sprung, so as 24 not to interfere with state of the art vibration insulation aspects of a seat, especially a vehicle seat.
26 [0020] Figures 1-4 illustrate one configuration of a floating support plate 27 15 having a curved front surface 16 used to achieve lumbar support for a seat.
28 In this embodiment, the floating support plate 15 is supported by a support 29 linkage. The support linkage is positioned with respect to the floating support plate 15 so as to support the floating support plate 15 in a pivotal manner.
In 31 this manner the floating support plate is self centering and self aligns itself with 1 the occupant's back. In this embodiment, the support linkage is defined by a 2 cable member 21 and first and second spring members 25 and 26 which engage 3 the seat frame, as best seen in Figure 11. In this regard, the cable member 4 includes a terminal end which is secured to first spring member 25. Second spring member 26 is adapted to allow passage of the cable member 21 through 6 the spring member 26 to a mechanism, such as handle 30 adapted for adjusting 7 the amount of support provided by the floating support plate 15. It will be 8 appreciated that the cable member 21 slides in a flexible guide tube 22 which 9 serves as a cable housing.
[0021] In this embodiment, the flexible guide tube 22 is secured to the rear 11 surface 18 of the floating support plate 15. In the preferred embodiment, at least 12 one projection 35 extends from the rear surface 18 of the floating support plate 13 15. The projection 35 preferably includes a groove 38 for receiving the flexible 14 guide tube 22 in a manner that substantially secures the flexible guide tube 22 to the floating support plate 15. In this manner, the floating support plate 16 floats on the cable member 21 and the cable member 21 is allowed to slide freely 17 through the flexible guide tube 22. Alternatively, a conduit for the cable member 18 21 could be integral with the floating support plate 15. The amount of lumbar.
19 support provided by the floating support plate 15 is determined by the effective length of the support linkage defined by the length of the cable member 21 21 disposed between the first and second spring members 25 and 26. In this 22 regard, an actuator mechanism 30, adapted to apply and release force, is fixed to 23 the cable member 21. For instance, a manual control handle 32 could be 24 utilized. In this regard, the handle 32 receives the second end 4.0 of the cable member 21 such that rotation of the handle 116 moves the cable member 21 26 within the flexible guide tube 22, either shortening or lengthening the effective 27 length of the cable 21 between the first and second spring members 25 and 26.
28 As can be seen in Figures 2 and 3, as the effective length of the cable member 21 29 between the first and second spring members 25 and 26 is shortened, the degree of lumbar support provided by the floating support plate 15 is increased.
Other 31 manual or motorized actuators are foreseeable, as well. For instance, the cable 32 can be motor driven. Alternatively, a direct drive strap system could be utilized, 33 thus eliminating the need for a remote driven cable.
1 [0022] Typically the floating support plate 15 is, preferably, fabricated 2 from a substantially rigid material such as plastic. The floating support plate 15 3 could also be flexible to offer more resilient support. Of course, those skilled in 4 the art will recognize that the curved support member could be fabricated from other rigid, preferably lightweight, materials, such as composites or metals.
Also, 6 while the figures illustrate a plurality of cutouts disposed in the upper curved 7 surface 16 of the floating support plate 15, which are provided for weight 8 reduction, it will be appreciated that the upper curved surface 16 could be 9 substantially solid.
[0023] The floating plate can float or be fixed to the foam directly. In this 1 1 regard, as seen in Figures 13A and 13B, an alternate embodiment of floating 12 support plate, illustrated as 10" is provided with a plurality of notches 13 disposed in the front surface 16 having at least a pair of inward projecting tabs 14 43. In this regard, the inward projecting tabs 43 are adapted to "pinch"
projections 45, which are molded in the back of the foam which forms the seat 16 cushion. Further, the floating support plate 15 could be molded into the 17 seatback foam cushion. Other mechanisms for holding the floating support plate 18 15 will be discussed in greater detail below.
19 [0024] Figures 5-8 illustrate an alternate embodiment of the lumbar support mechanism 10' which includes floating support plate 15' which is 21 actuated by an electrically powered rotary power mechanism 50. In this powered 22 embodiment, the support linkage is defined by first and second spring members 23 25 engaged with first and second linkage members 52, respectively. The rotary 24 power mechanism 50 applies rotating motion to a shaft 54 that is threaded on opposite ends 53, 55. One end is provided with a right hand thread and the 26 other end is provided with a left hand thread. First and second linkage members 27 52 include threaded nuts 56 which engage the ends 53 and 55 of the shaft 54.
28 Rotation of the shaft in a first direction will draw the first and second linkage 29 members 52 inward, thus shortening the effective length of the support linkage as seen in FIG. 8. Contrariwise, rotation of the shaft 54 in the opposite direction 31 will move the first and second linkage members 52, outward, thus lengthening 32 the effective length of the support linkage as illustrated in Figure 7. The rotary 33 power mechanism 50 may require a shut-off switch depending upon the gear 34 ratios and stall forces as will be readily recognized by those skilled in the art. It 1 will be appreciated by those skilled in the art that both the manual embodiment 2 and the powered embodiment are fully modular. Additionally, those skilled in the 3 art will readily appreciate that the powered embodiment is fully adaptable with 4 "memory seating", wherein the memory function is provided by means of hall effect pulse counting of motor rotations or simple potentiometer based sensors as 6 is readily known to those skilled in the art.
7 (0025] While the lumbar support mechanism 10 or 10' can be mounted in 8 a state of the art seat back and suspension, as illustrated in Fig. 11, it can also 9 be mounted alone. Additionally, the lumbar support mechanism 10 and 10' can also be mounted in conjunction with an integral trim attachment array ?0 as 1 l illustrated in Figures 9 and 10. In this regard, the integral trim attachment array 12 70 of the present invention is adapted to replace the standard trim wires which 13 are molded into the seat back and cushion foam of a standard, state-of the-art 14 vehicle seat. The integral trim attachment array ?0 is defined by a trim ring ?3 having integrated pinch clips T6. The trim ring preferably has a rectilinear 16 configuration adapted to conform to the outline of a selected seat back or 17 cushion foam. The trim ring ?3 is, preferably, molded into the seat back or 18 cushion foam as will be understood by those skilled in the art. Linkages ?9 are i9 utilized to link a plurality of trim rings T3 together or to link trim ring ?3 to the floating support plate 10 as shown in Figures 9 and 10. Additionally, the floating 21 support plate could be fashioned with integrated pinch clips ?6 to provide 22 additional points of attachment for the seat trim (not shown). The pinch clips ?6 23 are adapted to secure the listing wires in the trim assembly to the face of the 24 seat.
[0026] The system of the present invention integrates the trim attachment 26 array ?0 and the lumbar support mechanism 10 and thus allows the lumbar 27 support mechanism 10 to be molded into the seat back foam. This creates 28 certain unexpected advantages. Namely, molding the lumbar support mechanism 29 10 into the foam allows for deeper foam at the highest point of pressure on the occupants back. Additionally, the integration of the foam and the trim 31 attachment array 70 yields a cleaner appearance of the seat back and also 32 creates a more subtle contouring of the lumbar support with the seatback thus 33 creating a cleaner appearance and also creating a more gradual shape change in 34 the back rather than an abrupt support sensation, thereby being more 1 transparent to the occupant of the seat. As seen in greater detail in Figure 13, 2 the trim ring also includes a plurality of repair hole members 82 which are 3 adapted for receiving a repair pinch clip 85. The repair pinch clip 85 includes 4 flanges 88 as are known in the art to substantially impede removal of the repair pinch clip 85 from the repair hole member 82. The repair pinch clip 85 also 6 includes a key 88 which cooperates with a keyway 94, disposed in the repair 7 hole member 82 so as to substantially prevent rotation of the repair pinch clip 8 85 within the repair hole member 82. It will be appreciated by those skilled in 9 the art that this combination of repair hole members 82 and repair pinch clips 85 facilitates rapid repair of an inadvertently broken integrated pinch clip 11 during the assembly process.
12 [002?] From the foregoing description, it will be recognized by those 13 skilled in the art that an improved lumbar support mechanism, and an 14 integrated trim attachment system, have been provided. In this regard, the i5 present invention provides an adjustable lumbar support for seats which is 16 regulable using different regulation mechanisms, such as manual regulation 17 mechanisms and power mechanisms. Further, the present invention provides a 18 floating plate that "self centers" or "self aligns" offering firm yet compliant i9 support and that "moves" with the occupant and which is fully sprung, so as not to interfere with state of the art vibration insulation aspects of a seat, especially a 2 1 vehicle seat. It will be appreciated that this configuration alleviates the pressure 22 on the user's lower back and kidney region associated with some conventional 23 lumbar supports. Additionally, the present invention provides a trim attachment 24 array that reduces the need for trim wires to be molded into the seat foam and further eliminate the need for secondary fasteners, such as hog rings.
26 [0028] While the present invention has been illustrated by description of 27 several embodiments and while the illustrative embodiments have been described 28 in considerable detail, it is not the intention of the applicant to restrict or in any 29 way limit the scope of the appended claims to such detail. Additional advantages 3o and modifications will readily appear to those skilled in the art. The invention in 31 its broader aspects is therefore not limited to the specific details, representative 32 apparatus and methods, and illustrative examples shown and described.
33 Accordingly, departures may be made from such details without departing from 34 the spirit or scope of applicant's general inventive concept.
Claims (25)
1. An adjustable lumbar support for seats, said adjustable lumbar support comprising:
a floating support plate for providing support to a lumbar region of a seat, said support plate having an front surface and a rear surface;
a support linkage for supporting said floating support plate, wherein said support linkage is adapted for engaging a seat frame, said support linkage having an effective length and including at least one spring member disposed between said floating support plate and the seat frame, said support linkage supporting said floating support plate in a pivotal manner; and an actuator mechanism for adjusting said effective length of said support linkage, whereby an amount of lumbar support provided by said floating support plate is increased as said effective length of said support linkage is decreased.
a floating support plate for providing support to a lumbar region of a seat, said support plate having an front surface and a rear surface;
a support linkage for supporting said floating support plate, wherein said support linkage is adapted for engaging a seat frame, said support linkage having an effective length and including at least one spring member disposed between said floating support plate and the seat frame, said support linkage supporting said floating support plate in a pivotal manner; and an actuator mechanism for adjusting said effective length of said support linkage, whereby an amount of lumbar support provided by said floating support plate is increased as said effective length of said support linkage is decreased.
2. The adjustable lumbar support of Claim 1 wherein said floating support plate has a curved front surface.
3. The adjustable lumbar support of Claim 1 wherein said actuator mechanism is manually activated.
4. The adjustable lumbar support of Claim 1 wherein said actuator mechanism is electrically powered.
5. The adjustable lumbar support of Claim 4 wherein said actuator mechanism applies rotating motion to a shaft having first and second ends wherein said first and second ends are oppositely threaded.
6. The adjustable lumbar support of Claim 1 wherein said floating support plate is constructed of a substantially rigid material.
7. The adjustable lumbar support of Claim 1 wherein said support linkage is defined by a cable member and first and second spring members, wherein said spring members are adapted for engaging a seat frame, wherein said cable member has a first end secured to said actuator mechanism and a second end secured to one of said spring members, said cable member slides in a cable housing secured to said rear surface of said floating support plate.
8. The adjustable lumbar support of Claim 1 wherein said floating support plate includes a projection disposed from said rear surface of said floating support plate.
9. The adjustable lumbar support of Claim 7 wherein said cable housing is integral with said floating support plate.
10. The adjustable lumbar support for seats of Claim 1 wherein said support linkage is defined by first and second spring members engaged with first and second linkage members respectively, wherein said first and second spring members are adapted to further engage a seat frame and further wherein said first and second linkage members include threaded fasteners, wherein said actuator mechanism is a powered mechanism for providing rotary motion to a shaft having first and second ends, said first and second ends of said shaft being oppositely threaded and said threaded fastener of said first linkage member being threadably engaged with said first end of said shaft and said threaded fastener of said second linkage member being threadably engaged with said second end of said shaft such that rotation of said shaft in a first direction draws said first and second linkage members inward thereby shortening said effective length of said support linkage, and rotation of said shaft in a second direction moves said first and second linkage members outward thereby increasing said effective length of said support linkage.
11. The adjustable lumbar support of Claim 1 wherein said adjustable lumbar support is in active cooperation with an integral trim attachment array comprising a trim ring having integrated pinch clips disposed along a length of said trim ring.
12. The adjustable lumbar support of Claim 11 wherein said trim ring further includes a plurality of repair hole members adapted for receiving a repair pinch clip, wherein said repair hole member includes at least one keyway and said repair pinch clip includes at least one key wherein said key and said keyway coact to substantially prevent rotation of said repair pinch clip within said repair hole member.
13. The adjustable lumbar support of Claim 1 wherein said floating support plate is molded in a seatback foam cushion.
14. The lumbar support of Claim 1 wherein said floating plate includes a plurality of apertures disposed in said front surface, each of said apertures including at least one inward projecting tab, said inward projecting tabs being adapted for receiving a projection molded in a foam cushion whereby said floating plate can be fixed to the foam cushion.
15. An adjustable lumbar support for seats, said adjustable lumbar support comprising:
a floating support plate for providing support to a lumbar region of a seat, said support plate having a curved front surface and a rear surface, said floating support plate further having a projection disposed from said rear surface of said floating support plate;
a support linkage for supporting said floating support plate, wherein said support linkage is adapted for engaging a seat frame, said support linkage having an effective length and including at least one spring member disposed between said floating support plate and the seat frame, said support linkage supporting said floating support plate in a pivotal manner; and an actuator mechanism for adjusting said effective length of said support linkage, whereby an amount of lumbar support provided by said floating support plate is increased as said effective length of said support linkage is decreased;
wherein said adjustable lumbar support is in active cooperation with an integral trim attachment array comprising a trim ring having integrated pinch clips disposed along a length of said trim ring.
a floating support plate for providing support to a lumbar region of a seat, said support plate having a curved front surface and a rear surface, said floating support plate further having a projection disposed from said rear surface of said floating support plate;
a support linkage for supporting said floating support plate, wherein said support linkage is adapted for engaging a seat frame, said support linkage having an effective length and including at least one spring member disposed between said floating support plate and the seat frame, said support linkage supporting said floating support plate in a pivotal manner; and an actuator mechanism for adjusting said effective length of said support linkage, whereby an amount of lumbar support provided by said floating support plate is increased as said effective length of said support linkage is decreased;
wherein said adjustable lumbar support is in active cooperation with an integral trim attachment array comprising a trim ring having integrated pinch clips disposed along a length of said trim ring.
16. The adjustable lumbar support of Claim 15 wherein said actuator mechanism is manually activated.
17. The adjustable lumbar support of Claim 15 wherein said actuator mechanism is electrically powered.
18. The adjustable lumbar support of Claim 17 wherein said actuator mechanism applies rotating motion to a shaft having first and second ends wherein said first and second ends are oppositely threaded.
19. The adjustable lumbar support of Claim 15 wherein said support linkage is defined by a cable member and first and second spring members, wherein said spring members are adapted for engaging a seat frame, wherein said cable member has a first end secured to said actuator mechanism and a second end secured to one of said spring members, said cable member slides in a cable housing secured to said rear surface of said floating support plate.
20. The adjustable lumbar support of Claim 19 wherein said cable housing is integral with said floating support plate.
21. The adjustable lumbar support for seats of Claim 15 wherein said support linkage is defined by first and second spring members engaged with first and second linkage members respectively, wherein said first and second spring members are adapted to further engage a seat frame and further wherein said first and second linkage members include threaded fasteners, wherein said actuator mechanism is a powered mechanism for providing rotary motion to a shaft having first and second ends, said first and second ends of said shaft being oppositely threaded and said threaded fastener of said first linkage member being threadably engaged with said first end of said shaft and said threaded fastener of said second linkage member being threadably engaged with said second end of said shaft such that rotation of said shaft in a first direction draws said first and second linkage members inward thereby shortening said effective length of said support linkage, and rotation of said shaft in a second direction moves said first and second linkage members outward thereby increasing said effective length of said support linkage.
22. The adjustable lumbar support of Claim 15 wherein said trim ring further includes a plurality of repair hole members adapted for receiving a repair pinch clip, wherein said repair hole member includes at least one keyway and said repair pinch clip includes at least one key wherein said key and said keyway coact to substantially prevent rotation of said repair pinch clip within said repair hole member.
23. The lumbar support of Claim 15 wherein said floating plate includes a plurality of apertures disposed in said front surface, each of said apertures including at least one inward projecting tab, said inward projecting tabs being adapted for receiving a projection molded in a foam cushion whereby said floating plate can be fixed to the foam cushion.
24. The adjustable lumbar support of Claim 15 wherein said floating support plate is molded in a seatback foam cushion.
25. The adjustable lumbar support of Claim 15 wherein said floating support plate is constructed of a substantially rigid material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30450401P | 2001-07-11 | 2001-07-11 | |
| US60/304,504 | 2001-07-11 | ||
| PCT/US2002/022440 WO2003005859A2 (en) | 2001-07-11 | 2002-07-11 | Integrated adjustable lumbar support and trim attachment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2450735A1 true CA2450735A1 (en) | 2003-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002450735A Abandoned CA2450735A1 (en) | 2001-07-11 | 2002-07-11 | Integrated adjustable lumbar support and trim attachment system |
Country Status (6)
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| US (2) | US7011369B2 (en) |
| EP (1) | EP1416831A4 (en) |
| AU (1) | AU2002316699A1 (en) |
| CA (1) | CA2450735A1 (en) |
| MX (1) | MXPA04000313A (en) |
| WO (1) | WO2003005859A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7780233B2 (en) | 2005-06-02 | 2010-08-24 | Schukra Of North America, Ltd. | Belt extension apparatus |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1416831A4 (en) * | 2001-07-11 | 2008-02-06 | Alfmeier Corp | Integrated adjustable lumbar support and trim attachment system |
| DE10325849A1 (en) * | 2003-06-06 | 2005-01-05 | Schukra Gerätebau AG | Reusable adjustment device for a seat component |
| DE20313925U1 (en) * | 2003-09-04 | 2004-10-07 | Brose Fahrzeugteile Gmbh & Co. Kg, Coburg | Backrest structure for a motor vehicle seat |
| US20050245126A1 (en) * | 2004-04-30 | 2005-11-03 | Renato Colja | Wire clip integrated into lumbar support |
| US7805367B2 (en) * | 2004-08-17 | 2010-09-28 | Paymentech, L.P. | System and method for pricing of merchant accounts |
| US7530636B2 (en) * | 2004-12-03 | 2009-05-12 | L&P Property Management Company | Comfort belt lumbar |
| US20060226683A1 (en) * | 2005-04-08 | 2006-10-12 | Alfmeier Corporation | Adjustable lumbar support with extensive configurability |
| US7862119B2 (en) * | 2005-04-08 | 2011-01-04 | Alfmeier Prazision Ag Baugruppen Und Systemlosungen | Vehicle seat with lordosis support |
| US7783579B2 (en) * | 2005-05-13 | 2010-08-24 | Ntt Docomo, Inc. | Method and apparatus for secure and small credits for verifiable service provider metering |
| DE502006005296D1 (en) * | 2005-05-30 | 2009-12-17 | Brose Fahrzeugteile | CARRIER WITH LORENDER ADJUSTMENT DEVICE FOR A MOTOR VEHICLE SEAT |
| US7425036B2 (en) * | 2005-08-23 | 2008-09-16 | Schukra Of North America, Ltd. | Comfort belt spring pulley |
| US20070118259A1 (en) * | 2005-10-06 | 2007-05-24 | Gm Global Technology Operations, Inc. | Vehicle seat |
| US7300106B2 (en) * | 2006-03-30 | 2007-11-27 | Schukra Of North America, Ltd. | Trim foam lumbar |
| US7585027B2 (en) * | 2006-04-07 | 2009-09-08 | Schukra Of North America | Overmolded thin-profile lumbar support |
| US7703849B2 (en) * | 2006-12-22 | 2010-04-27 | B&B Innovators, Llc | Vertebral column support apparatus and method |
| US7441838B2 (en) * | 2007-02-22 | 2008-10-28 | Lear Corporation | Back support mechanism for vehicle seat |
| US7854479B2 (en) * | 2007-04-30 | 2010-12-21 | L&P Property Management Company | Overmolded lumbar support apparatus and method |
| US7575278B2 (en) * | 2007-10-19 | 2009-08-18 | Toyota Boshoku Kabushiki Kaisha | Seat backs for vehicular seats |
| US7717512B2 (en) * | 2007-10-23 | 2010-05-18 | Toyota Boshoku Kabushiki Kaisha | Seat backs for vehicular seats |
| WO2009140520A1 (en) * | 2008-05-14 | 2009-11-19 | Metabank | A pre-paid card transaction computer to load a loan on a pre-paid card |
| WO2011090505A1 (en) * | 2010-01-22 | 2011-07-28 | Backjoy Orthotics, Llc | Apparatus and system for dynamically correcting posture |
| EP2381817B1 (en) | 2009-01-23 | 2013-07-10 | Backjoy Orthotics, LLC | Method and apparatus for dynamically correcting posture |
| US10034548B2 (en) * | 2009-01-23 | 2018-07-31 | Backjoy Orthotics, Llc | Apparatus and system for dynamically correcting posture |
| US8096928B2 (en) * | 2009-08-05 | 2012-01-17 | Izhuk Ovadia | Device for treating the lower back |
| DE102009055841A1 (en) * | 2009-11-26 | 2011-06-01 | GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Detroit | Backrest for motor vehicle seat, has relaxed supporting rope fastened to backrest frame such that supporting mat under tension of supporting rope is pressed forward and supported |
| GB201005491D0 (en) * | 2010-03-31 | 2010-05-19 | Corcost Ltd | Corcost-SC010 |
| US8684460B2 (en) | 2011-06-15 | 2014-04-01 | Brose Fahrzeugteile Gmbh & Co. Kg, Coburg | Backrest structure for a seat with lumbar support and curving element comprising a pre-tensioning connecting element |
| US10632882B2 (en) | 2012-09-13 | 2020-04-28 | Leggett & Platt Canada Co. | Lumbar support system |
| US9199565B2 (en) | 2012-09-13 | 2015-12-01 | Leggett & Platt Canada Co. | Lumbar support system |
| US9193280B2 (en) | 2012-09-13 | 2015-11-24 | Leggett & Platt Canada Co. | Lumbar support system |
| US9193287B2 (en) | 2012-09-13 | 2015-11-24 | Leggett & Platt Canada Co. | Lumbar support system |
| US10463153B2 (en) | 2016-06-09 | 2019-11-05 | Steelcase Inc. | Seating arrangement |
| CN107776705B (en) * | 2016-08-31 | 2023-08-15 | 儒拉玛特自动化技术(苏州)有限公司 | Flexible loading and unloading clamping tool for detecting electric waist support on automobile seat |
| US11052223B2 (en) | 2017-12-21 | 2021-07-06 | Lear Corporation | Seat assembly and method |
| CN109278400A (en) * | 2018-10-31 | 2019-01-29 | 江苏赛尔制版有限公司 | A kind of silk screen supporting mechanism of solar panel silk-screen printing |
| KR20200123569A (en) * | 2019-04-22 | 2020-10-30 | 현대자동차주식회사 | Lumber support device for seat of vehicle |
| US11059490B1 (en) | 2020-03-17 | 2021-07-13 | Lear Corporation | Seat system |
| US11292371B2 (en) | 2020-05-13 | 2022-04-05 | Lear Corporation | Seat assembly |
| US11173818B1 (en) | 2020-05-13 | 2021-11-16 | Lear Corporation | Seat assembly |
| US11634055B2 (en) | 2020-05-13 | 2023-04-25 | Lear Corporation | Seat assembly |
| US11590873B2 (en) | 2020-05-13 | 2023-02-28 | Lear Corporation | Seat assembly |
| CN112545232B (en) * | 2020-11-13 | 2023-11-03 | 安徽精正家具制造有限公司 | Office chair with lumbar support structure and surface treatment method thereof |
| US11679706B2 (en) | 2020-12-02 | 2023-06-20 | Lear Corporation | Seat assembly |
Family Cites Families (131)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US134853A (en) * | 1873-01-14 | Improvement in springs for vehicles | ||
| US162165A (en) * | 1875-04-20 | Improvement in sprigs for vehicles | ||
| US1153058A (en) * | 1915-09-07 | James O Gilfillan | Vehicle-spring. | |
| US759507A (en) * | 1903-07-29 | 1904-05-10 | John Marshall Ericson | Adjustable spring. |
| US1273953A (en) * | 1914-08-31 | 1918-07-30 | Jose A Torano | Chair. |
| US2812804A (en) * | 1954-08-16 | 1957-11-12 | Sandor Ralph | Adjustable back rest for seat |
| US2903043A (en) * | 1957-07-22 | 1959-09-08 | Kenney Nolan | Automobile seat |
| US3145054A (en) * | 1962-07-12 | 1964-08-18 | Jr John Sopko | Portable chair seat with a backsupporting pneumatic cushion |
| US3348880A (en) * | 1966-04-14 | 1967-10-24 | David T Swann | Adjustable back supprot cushions |
| US3581322A (en) * | 1969-03-03 | 1971-06-01 | Eugene A Marsico | Waterproof mattress |
| GB1365348A (en) * | 1971-12-16 | 1974-09-04 | Vauxhall Motors Ltd | Vehicle seat |
| US3797886A (en) * | 1972-08-01 | 1974-03-19 | Youngflex Sa | Seat frames |
| US3899210A (en) * | 1973-06-01 | 1975-08-12 | Lederman S Inc | Bean-bag chair |
| US4108492A (en) * | 1974-10-18 | 1978-08-22 | Kirby Billy E | Back support |
| US3974827A (en) * | 1975-05-12 | 1976-08-17 | Benjamin T. Angileri | Portable orthopedic device |
| US4138235A (en) * | 1977-05-31 | 1979-02-06 | Ppg Industries, Inc. | Method of making flat glass with lower sulfur-containing emissions |
| AT358767B (en) * | 1978-06-23 | 1980-09-25 | Schuster Wilhelm | BENDABLE ELASTIC SUPPORT |
| JPS5578916A (en) * | 1978-12-12 | 1980-06-14 | Yamada Kk | Carpet |
| SE423304B (en) * | 1979-01-10 | 1982-05-03 | Becker Wilhelm Ab | BEDDUNLAY, INCLUDING A RELATIVE THICKNESS |
| US4400817A (en) * | 1980-12-30 | 1983-08-23 | Motorola, Inc. | Method and means of clock recovery in a received stream of digital data |
| DE3125588A1 (en) * | 1981-06-30 | 1983-01-13 | Daimler-Benz Ag, 7000 Stuttgart | "CUSHION IN THE BACKREST AREA OF A MOTOR VEHICLE SEAT" |
| SE431714B (en) * | 1981-07-03 | 1984-02-27 | Timmele Laminering Ab | ELASTIC BODY |
| US4490866A (en) * | 1982-12-06 | 1985-01-01 | Tualatin Sleep Products, Inc. | System for mounting a mattress cover to a mattress core |
| US4619481A (en) * | 1982-12-15 | 1986-10-28 | Grudzinskas Charles A | Inflatable seat cushion assembly |
| CH668891A5 (en) | 1983-01-13 | 1989-02-15 | Matra Ag | SPRING BAR ARRANGEMENT FOR A BED FRAME. |
| US4516568A (en) * | 1983-07-22 | 1985-05-14 | Baxter Kern C A | Pressure exerting device |
| US4554693A (en) * | 1983-12-19 | 1985-11-26 | American Fast Print Limited | Mattress, box springs fabric |
| US4555140A (en) * | 1984-02-23 | 1985-11-26 | Japan | Vehicle seat |
| US4577358A (en) * | 1984-06-11 | 1986-03-25 | Glass Ted A | Bean bag body support |
| US4607403A (en) * | 1984-09-14 | 1986-08-26 | Alivizatos Margaret A | Infant support pads |
| US4636000A (en) * | 1984-09-28 | 1987-01-13 | Tachikawa Spring Co. Ltd. | Side support device in a vehicle seat |
| US4634176A (en) * | 1984-10-01 | 1987-01-06 | Scott Gregory M | Back support assembly for vehicle seat |
| JPH0139909Y2 (en) * | 1984-11-07 | 1989-11-30 | ||
| US4564235A (en) * | 1984-11-09 | 1986-01-14 | Tachikawa Spring Co., Ltd. | Lumbar support device |
| JPS6266810A (en) * | 1985-09-19 | 1987-03-26 | アイシン精機株式会社 | Lamber support apparatus |
| US4629253A (en) | 1986-01-15 | 1986-12-16 | Williams Theodore M | Seat occupant-activated underseat support air-cushion |
| FR2596334B1 (en) * | 1986-03-25 | 1990-10-05 | Renault | SEAT FOLDER WITH LUMP SUPPORT ADJUSTMENT DEVICE |
| US4809375A (en) * | 1986-04-23 | 1989-03-07 | B & E Enterprises | Mattress with removable mattress cover |
| US4706313A (en) * | 1986-05-01 | 1987-11-17 | Comfortex, Inc. | Decubitus ulcer mattress |
| US4754511A (en) * | 1986-05-21 | 1988-07-05 | Theracom Corporation | Support cushions |
| DE3620084A1 (en) * | 1986-06-14 | 1987-12-17 | Keiper Recaro Gmbh Co | Backrest for vehicle seats |
| US4725095A (en) * | 1986-07-11 | 1988-02-16 | Johnson Service Company | Vehicle seat with mechanical lumbar support having two degrees of freedom |
| US4757564A (en) * | 1986-08-25 | 1988-07-19 | American-National Watermattress Corporation | Mattress having cover with memory fabric |
| US4720146A (en) * | 1986-08-28 | 1988-01-19 | General Motors Corporation | Vehicle seat headrest apparatus and method |
| WO1988006857A1 (en) * | 1987-03-10 | 1988-09-22 | Jitsuo Inagaki | Bag-shaped body for cushion such as sheet, back support for automobile seat, pillow, sitting cushion, etc. |
| US4775185A (en) * | 1987-04-02 | 1988-10-04 | Itt Corporation | Automobile seat having adjustable thigh support |
| FR2616640B1 (en) * | 1987-06-18 | 1989-10-27 | Faure Bertrand Automobile | IMPROVEMENTS ON THE SEATS OF VEHICLES WITH ADJUSTABLE LUMBAR SUPPORT |
| US4789202A (en) | 1987-07-13 | 1988-12-06 | Alter Roy H | Inflatable seat cushion |
| US4880271A (en) * | 1987-12-28 | 1989-11-14 | Wickes Manufacturing Company | Adjustable lumbar support |
| JPH01216170A (en) * | 1988-02-19 | 1989-08-30 | Seki Rengou Hamono Kyodo Kumiai | Stem for city water valve with antifreezing device |
| US4819278A (en) * | 1988-03-02 | 1989-04-11 | Francisca Ramos | Invalid commode support apparatus |
| US4862536A (en) * | 1988-03-07 | 1989-09-05 | Pruit J Douglas | Back support device |
| US4955666A (en) * | 1989-04-03 | 1990-09-11 | M-D, Inc. | Surgical chair or table with debris-catching facility and disposable catch bag therefor |
| US4979672A (en) | 1989-06-21 | 1990-12-25 | Johnson Service Company | Shape memory actuator |
| AT394829B (en) * | 1989-08-04 | 1992-06-25 | Schuster Wilhelm | BACKREST FOR A VEHICLE SEAT, WITH AN ADJUSTABLE LUMBAR REST |
| US4973024A (en) * | 1989-09-26 | 1990-11-27 | Toki Corporation Kabushiki Kaisha | Valve driven by shape memory alloy |
| ES2047905T3 (en) * | 1989-09-28 | 1994-03-01 | Fiat Auto Spa | A BACKREST FOR A SEAT, IN PARTICULAR A CAR SEAT. |
| NL8902458A (en) * | 1989-10-03 | 1991-05-01 | Stichting Revalidatiecentrum A | PRESSURE EVENING SUPPORT DEVICE. |
| US5567011A (en) * | 1990-03-09 | 1996-10-22 | Sessini; Lorenza | Cushion for anatomical support, especially for the lumbar and cervical regions, to fit onto seat backs |
| JPH0631966Y2 (en) * | 1990-06-28 | 1994-08-24 | 池田物産株式会社 | Seat back frame |
| US5103517A (en) * | 1990-08-18 | 1992-04-14 | The Institute For Rehabilitation And Research | Disposable surgical pad |
| US5076643A (en) | 1990-08-20 | 1991-12-31 | Lear Seating Corporation | Lumbar support |
| US5101527A (en) * | 1990-10-29 | 1992-04-07 | Convo Corporation | Modular body support system |
| US5197780A (en) * | 1991-02-20 | 1993-03-30 | Fisher Dynamics Corporation | Transmission device for cable control of lumbar support mechanism |
| US5279237A (en) * | 1991-03-06 | 1994-01-18 | Maurice Adam | Method of making a floating baby bather |
| IT1249658B (en) * | 1991-06-11 | 1995-03-09 | Fiat Auto Spa | BACK SUPPORT ELEMENT FOR SEATS, PARTICULARLY AUTOMOTIVE SEATS. |
| US5111544A (en) * | 1991-07-01 | 1992-05-12 | Graebe Robert H | Cover with elastic top and frictional bottom for a cushion |
| US5211371A (en) * | 1991-07-22 | 1993-05-18 | Advanced Control Technologies, Inc. | Linearly actuated valve |
| ES2086133T3 (en) * | 1991-08-20 | 1996-06-16 | Jack Schwartz | MATTRESS. |
| US5190348A (en) * | 1991-10-25 | 1993-03-02 | Findlay Industries | Self-inflating support device including curved memory plate |
| US5174526A (en) | 1991-11-27 | 1992-12-29 | Futureflite Corporation | Adjustable lumbar support mechanism for airline passenger seats with manual push button and cable control |
| GB9209229D0 (en) | 1992-04-29 | 1992-06-17 | Youndflex S A | Improvements in and relating to seat arrangements providing adjustable lumbar support |
| IT1257058B (en) * | 1992-07-27 | 1996-01-05 | Fiat Auto Spa | BACK SUPPORT ELEMENT FOR SEATS, PARTICULARLY AUTOMOTIVE SEATS. |
| US5317768B1 (en) * | 1992-09-08 | 1999-09-07 | Serta Inc | Spring mattress with a top portion containing foam and fibers |
| US5319814A (en) * | 1992-10-07 | 1994-06-14 | Dyer Jr Charles D | Bedding structure with enhanced postural support |
| US5345963A (en) * | 1993-03-31 | 1994-09-13 | Honeywell Inc. | Modulating pressure regulator with shape memory alloy actuator |
| US5325880A (en) * | 1993-04-19 | 1994-07-05 | Tini Alloy Company | Shape memory alloy film actuated microvalve |
| DE4320105C1 (en) * | 1993-06-17 | 1994-10-13 | Ameu Management Corp | Adjustment device for a flexurally elastic supporting element of a backrest |
| DE9313841U1 (en) * | 1993-09-13 | 1993-12-16 | Zapf Otto | Backrest of a piece of furniture |
| JP3244584B2 (en) * | 1994-02-10 | 2002-01-07 | 株式会社日立製作所 | Diagnosis method and apparatus for engine exhaust gas purification device |
| US5423593A (en) * | 1994-03-10 | 1995-06-13 | Tachi-S, Co., Ltd. | Lumbar support device |
| US5491854A (en) * | 1994-05-19 | 1996-02-20 | Music; Earl D. | Inflatable mattress and bed assembly with taut, tensioned cover |
| US5462335A (en) * | 1994-08-18 | 1995-10-31 | Perfection Spring & Stamping Corp. | Adjustable lumbar support for seat backs |
| US5553919A (en) * | 1994-10-11 | 1996-09-10 | Excellence Lumbar Corporation | Scissor jack lumbar support |
| US5505520A (en) * | 1994-11-03 | 1996-04-09 | Ford Motor Company | Passenger seat with adjustable lumbar support |
| US5573302A (en) | 1994-11-08 | 1996-11-12 | Harrison; Patrick N. | Lower back support |
| US5651584A (en) * | 1995-04-24 | 1997-07-29 | L & P Property Management Company | Lumbar support structure for automotive vehicle |
| USD383928S (en) * | 1995-08-10 | 1997-09-23 | Bristol Thermal Technologies, LLC | Integrated lumbar support and air pump unit for a vehicle seat |
| US5934399A (en) * | 1995-10-31 | 1999-08-10 | Honda Giken Kogyo Kabushiki Kaisha | Automatically driven motor vehicle |
| US5802646A (en) * | 1995-11-30 | 1998-09-08 | Hill-Rom, Inc. | Mattress structure having a foam mattress core |
| US5609394A (en) * | 1996-02-23 | 1997-03-11 | Ligon Brothers Manufacturing Company | Four-way lumbar support |
| US6227618B1 (en) * | 1996-02-23 | 2001-05-08 | Schukra Usa, Inc. | Cable attachment for a lumbar support |
| US5984407A (en) * | 1996-02-23 | 1999-11-16 | Mccord Winn Textron Inc. | Cable attachment for a lumbar support |
| DE19616051C2 (en) * | 1996-04-23 | 1998-07-02 | Lear Corp | Device for connecting the edge region of a cover material for vehicle seat upholstery with a holder |
| US6056360A (en) | 1996-06-17 | 2000-05-02 | American Components, Inc. | Adjustable lumbar seat support |
| US5806927A (en) * | 1997-04-11 | 1998-09-15 | American Components, Inc. | Adjustable lumbar seat support |
| CA2181776A1 (en) * | 1996-07-22 | 1998-01-23 | Christopher Cosentino | Shape-adjusting mechanism for backrest |
| GB2316604B (en) | 1996-08-23 | 1998-10-14 | Youngflex Ag | Improved seat suspension arrangement and adjustment mechanism therefor |
| US5680662A (en) * | 1996-09-09 | 1997-10-28 | Veritas Enterprises, Inc. | Cushioning mattress for reducing shear and friction |
| US5802643A (en) | 1996-11-08 | 1998-09-08 | Printmark Industries, Inc. | Slipcover with an inflatable pillow |
| US5733012A (en) * | 1997-03-11 | 1998-03-31 | Jones; Robert A. | Therapeutic medical chair |
| US5762397A (en) * | 1997-03-24 | 1998-06-09 | Venuto; Dennis | Wire attachment to a seat frame |
| DE29706398U1 (en) * | 1997-04-10 | 1997-05-22 | Megaplast Sa | Backrest for backrests, in particular for motor vehicle seats |
| US5823620A (en) * | 1997-04-17 | 1998-10-20 | Lear Corporation | Vehicle seat having lumbar support |
| US5836647A (en) | 1997-05-20 | 1998-11-17 | Turman; Ben | Vehicle seat with shock absorption |
| US5911477A (en) * | 1997-05-29 | 1999-06-15 | L&P Property Management Company | Lumbar support structure for automotive vehicle |
| US5975568A (en) * | 1998-04-01 | 1999-11-02 | American Components, Inc. | Sensor pad for controlling airbag deployment and associated support |
| US5910081A (en) * | 1998-04-10 | 1999-06-08 | Casco Products, Inc. | Mattress cover |
| US5937464A (en) * | 1998-04-30 | 1999-08-17 | Niederman; Alfred G. | Foldable foam mattress with coil springs and firm periphery |
| US6053064A (en) * | 1998-05-01 | 2000-04-25 | L & P Property Management Company | Lumbar support screw actuator |
| US5967608A (en) * | 1998-05-06 | 1999-10-19 | Bytec Incorporated | Pneumatic lumbar adjustment system |
| US5954399A (en) | 1998-07-15 | 1999-09-21 | Hong; Jung-Myung | Lumbar support for a car seat |
| GB2342286B (en) * | 1998-10-02 | 2001-05-09 | Youngflex Ag | Improvements in or relating to seat suspension arrangements |
| US6430530B1 (en) * | 1999-09-16 | 2002-08-06 | Oak Technology, Inc. | Apparatus for automatically processing both encoded and unencoded data |
| DE19946156C2 (en) * | 1999-09-27 | 2002-08-01 | Faurecia Autositze Gmbh & Co | Motor vehicle seat with lumbar support |
| US6092871A (en) * | 1999-10-29 | 2000-07-25 | Global Total Office | Lumbar support |
| US6338530B1 (en) * | 2000-06-30 | 2002-01-15 | L&P Property Management Company | Lumbar support device |
| US6557938B1 (en) * | 2000-09-18 | 2003-05-06 | L & P Property Management Company | Adjustable lumbar device |
| US6619739B2 (en) * | 2001-03-01 | 2003-09-16 | L & P Property Management Company | Universal ergonomic support with self-contained actuator |
| US6758522B2 (en) * | 2001-03-29 | 2004-07-06 | L&P Property Management Company | Apparatus and method for varying coefficients of friction in a variable apex back support |
| US6402246B1 (en) * | 2001-04-11 | 2002-06-11 | L&P Property Management | Simplified strap lumbar support device |
| EP1416831A4 (en) * | 2001-07-11 | 2008-02-06 | Alfmeier Corp | Integrated adjustable lumbar support and trim attachment system |
| US6652028B2 (en) | 2001-11-02 | 2003-11-25 | L & P Property Management | Apparatus and method for lumbar support with variable apex |
| US6676214B2 (en) * | 2001-11-16 | 2004-01-13 | L & P Property Management Company | Method and apparatus for lumbar support with integrated actuator housing |
| US6652029B2 (en) | 2001-12-20 | 2003-11-25 | L & P Property Management Company | Unitized back plate and lumbar support |
| US6779844B2 (en) * | 2001-12-14 | 2004-08-24 | L&P Propety Maqnagement Company | Arching lumbar support with weight distribution surface |
| US6908152B2 (en) * | 2001-12-14 | 2005-06-21 | L & P Property Management Company | Push lumbar support with flexible pressure surface |
| CA2417003C (en) * | 2002-04-18 | 2007-04-17 | Faurecia Automotive Seating Canada Limited | Improved vehicle seat assembly |
| US6637824B1 (en) * | 2002-05-30 | 2003-10-28 | Tachi-S Co., Ltd. | Arrangement for securing support springs in vehicle seat frame |
| US6814407B2 (en) | 2002-06-05 | 2004-11-09 | L & P Property Management Company | Single actuator four-way power lumbar |
| DE10306920B3 (en) * | 2003-02-19 | 2004-06-17 | Dr.Ing.H.C. F. Porsche Ag | Automobile passenger seat has elastic elements providing oscillation isolation for spring elements between front seat shell and rear transverse carrier |
-
2002
- 2002-07-11 EP EP02747025A patent/EP1416831A4/en not_active Withdrawn
- 2002-07-11 AU AU2002316699A patent/AU2002316699A1/en not_active Abandoned
- 2002-07-11 US US10/483,131 patent/US7011369B2/en not_active Expired - Lifetime
- 2002-07-11 CA CA002450735A patent/CA2450735A1/en not_active Abandoned
- 2002-07-11 MX MXPA04000313A patent/MXPA04000313A/en active IP Right Grant
- 2002-07-11 WO PCT/US2002/022440 patent/WO2003005859A2/en not_active Application Discontinuation
-
2005
- 2005-09-15 US US11/227,883 patent/US7201446B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7780233B2 (en) | 2005-06-02 | 2010-08-24 | Schukra Of North America, Ltd. | Belt extension apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002316699A1 (en) | 2003-01-29 |
| EP1416831A2 (en) | 2004-05-12 |
| MXPA04000313A (en) | 2005-03-07 |
| US7011369B2 (en) | 2006-03-14 |
| US20050023873A1 (en) | 2005-02-03 |
| US20060061170A1 (en) | 2006-03-23 |
| US7201446B2 (en) | 2007-04-10 |
| EP1416831A4 (en) | 2008-02-06 |
| WO2003005859A3 (en) | 2003-09-04 |
| WO2003005859A2 (en) | 2003-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |