US20080073966A1 - Vehicle seat assembly having a hardness gradient via hollowed sections and/or protrusions - Google Patents
Vehicle seat assembly having a hardness gradient via hollowed sections and/or protrusions Download PDFInfo
- Publication number
- US20080073966A1 US20080073966A1 US11/468,434 US46843406A US2008073966A1 US 20080073966 A1 US20080073966 A1 US 20080073966A1 US 46843406 A US46843406 A US 46843406A US 2008073966 A1 US2008073966 A1 US 2008073966A1
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- United States
- Prior art keywords
- cushion
- central portion
- bolster
- seat assembly
- vehicle seat
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- Abandoned
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- 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
- B60N2/70—Upholstery springs ; Upholstery
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
- 1. Field of the Invention
- The present invention relates to a vehicle seat assembly having a hardness gradient and method of making the same. More specifically, the present invention relates to a vehicle seat assembly having areas that are configured to be less hard than other areas of the seat assembly and methods of making the same.
- 2. Background Art
- Generally speaking, a vehicle seat assembly includes three fundamental components: (a) a frame to support the seat assembly and to mount it to a vehicle; (b) a foam cushion to cover the frame; and (c) trim material to cover the foam cushion and provide a durable surface for contact with a vehicle occupant. Typically, the foam cushion is made from an expandable foam material, such as polyurethane, and is molded to a predetermined shape during a molded process. For example, the predetermined shape of a typical bucket-style seat includes raised front, side, and rear bolster areas and recessed central seating and back sections. The trim material may include any number of materials, such as cloth, polymers, or leather. Often, the selection of trim material is governed by the sale price of the vehicle. For example, leather trim material may be used for luxury vehicles while cloth and polymeric materials may be used for less expensive vehicles.
- An important consideration in the manufacture of seat cushions is to provide inboard and outboard portions of the seat cushion which are relatively resistant to premature wear while providing an insert or center portion which is soft and comfortable. Inboard and outboard sides of the vehicle seat assembly typically bear most of the load when the occupant gets in and out of the vehicle and therefore require additional rigidity relative to the center insert portion of the vehicle seat assembly. Presently, there is no relatively inexpensive and simple way of providing a vehicle seat assembly having more rigid inboard and/or outboard bolster areas relative to the center insert area.
- Accordingly, there is a need to provide a vehicle seat assembly which has a seat cushion that has a relatively rigid outboard and inboard bolster area and a relatively less rigid center portion area which can be manufactured easily and relatively economically.
- According to at least one aspect of the present invention, a vehicle seat assembly is provided. In at least one embodiment, the vehicle seat assembly comprises a cushion having an “A” surface and a “B” surface, a central portion, and two bolster areas, with each bolster area being adjacent the central portion. In at least this embodiment, the cushion has a plurality of intrusions extending from the “A” surface to the “B” surface to form a hardness gradient between at least one of the bolster areas and the central portion of between 8% to 25%. Cushions having a hardness gradient of 8% to 25% between the central portion and at least one bolster area will have a desirable comfort, durability, vibration resistance, and safety performance.
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FIG. 1 is a cut-away environmental view of a vehicle seat assembly in accordance with an environment of the present invention; -
FIG. 2 is a top perspective view of a bottom seat cushion useable with the vehicle seat assembly illustrated inFIG. 1 ; -
FIG. 3 is a cross-sectional view of the seat cushion illustrated inFIG. 2 ; -
FIG. 4 is a view similar toFIG. 2 showing another embodiment of the present invention; -
FIG. 5 is a cross sectional view illustrating another embodiment of a bottom seat cushion useable with the seat assembly of the present invention; -
FIG. 6 is a view similar toFIG. 5 showing another embodiment of the present invention; -
FIG. 7 is a view similar toFIG. 5 showing yet another embodiment of the present invention; -
FIG. 8 illustrates an example of occupant pressure modeling for a seat bottom cushion; and -
FIG. 9 illustrates an example of occupant pressure modeling for a seat back cushion. - As required, detailed embodiments of the present invention are disclosed herein. However, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale, some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for the claims and/or as a representative basis for teaching one skilled in the art to variously employ the present invention.
- Moreover, except where otherwise expressly indicated, all numerical quantities in this description and in the claims are to be understood as modified by the word “about” in describing the broader scope of this invention. Practice within the numerical limits stated is generally preferred. Also, unless expressly stated to the contrary, the description of a group or class of materials by suitable or preferred for a given purpose in connection with the invention implies that mixtures of any two or more members of the group or class may be equally suitable or preferred.
- Referring now to the figures, where like numerals are used to designate like structure throughout to the drawings, a schematic vehicle seat assembly in accordance with at least one embodiment of the present invention is generally shown at 10 in
FIG. 1 . While thevehicle seat assembly 10 is illustrated inFIG. 1 to be a bucket seat assembly, it should be understood that the principles of the present invention are applicable to other types of seat assemblies, such as bench, captain, and other types of seat assemblies. It should also be understood that the principles of the present invention are applicable to other applications where foam is a component such as back rests, back support pads, arm rests, and head restraints. - As shown in
FIG. 1 , thevehicle seat assembly 10 includes a seat frame, generally indicated at 14 having a plurality of mounting brackets (not shown) adapted to operatively secure the seat frame within a vehicle. Theseat frame 14 may be constructed from any material suitable for application within avehicle seat assembly 10, such as aluminum, steel or other metal alloy or a suitable polymer. Further, theseat frame 14 may be manufactured using a technique commonly known in the art, relative to the type of material employed. By way of example, manufacturing techniques may include stamping, welding, fastening or molding a suitable material to form aseat frame 14. - The
vehicle seat assembly 10 comprises a seat back, generally indicated at 16, and a lower seat assembly, generally indicated at 18. In at least the illustrated embodiment, theseat back 16 includes a centralback support pad 20,side bolsters 22, and trenches 24 between thebolsters 22 and thepad 20. In at least the illustrated embodiment, thelower seat assembly 18 includes acentral seating pad 26, a plurality ofbolsters central seating pad 26, andtrenches 32 between thebolsters pad 26.Bolsters 30 are located at opposite sides (i.e., inboard and outboard) of thelower seat assembly 12 and thebolster 31 is located at the front of thelower seat assembly 18 and extends between and connects the front portions of thebolsters 30. - The
vehicle seat assembly 12 further includes a back foam cushion (not shown) and a seat foam cushion generally indicated at 34. Theseat foam cushion 34 is conventionally secured to theseat frame 14 and/or a seat assembly infrastructure (not shown). Thefoam cushion 34 may be secured to theseat frame 14 and/or infrastructure by any method generally known in the art, such as by an adhesive. It should be understood while thefoam cushion 34 is illustrated to be a bucket-seat bottom cushion, the present invention can be applicable to any type of seat cushion such as a seat back cushion for a bucket-seat and seat back and bottom cushion for bench seats, as well as other types of seats. - The
vehicle seat assembly 12 also includes atrim material 36 adapted to engage the foam cushion 34 (or cushions) in a covering relationship. Thetrim material 36 may include any material commonly known in the art. By way of example, some of the known materials include cloth, leather, or polymers of sufficient quality and thickness for use in seat trim applications. Polymer trim materials may include a flexible closed cell polymer skin material such as polyvinyl, polyvinyl chloride (PVC), thermoplastic olefin (TPO), or thermoplastic urethane (TPU). Additionally, materials for use astrim material 36 may include a foam backing (not shown, but generally known in the art) which may be manufactured from a variety of polymer foam materials. By way of example, the foam backing may be polyethylene, polypropylene, polyurethane, or a polystyrene foam. Optionally, a mesh or reinforcing material (not shown, but generally known in the art) such as fiberglass or nylon may be applied to the foam backing or back of thetrim material 36 for increasing strength without increasing rigidity. - The
seat cushion 34 has anupper surface 38 and alower surface 40 that is spaced from theupper surface 38. Theupper surface 38 of theseat cushion 34 may be referred to as the “A” surface, and thelower surface 40 may be referred to as the “B” surface. Theseat cushion 34 also defines an inboard side 42 and anoutboard side 44. When an occupant (not shown) is supported on thelower seat assembly 18, the weight of the occupant will generally apply an axial load directed generally through theupper surface 38 of theseat cushion 34 towards thelower surface 40. Although the weight of the occupant will generally induce an axial as well as sheer force in theseat cushion 34, those having ordinary skill in the art will recognize that the primary load path of the occupant's weight will be substantially vertical from theupper surface 38 towards thelower surface 40 through the seat cushion. However, when the occupant is getting in and out of the vehicle, an increased and substantially sizeable load will typically be placed on the inboard and outboard bolsterportions 30 of theseat cushion 34. - In accordance with the present invention, a
seat cushion 34 is provided that has bolsterportions 30 having a greater hardness relative to thecentral seating pad 26. In at least one embodiment, the bolster 31 also has a greater hardness relative to thecentral seating pad 26. To provide the desired hardness gradient,seat cushion 34 can be provided with intrusions extending from the “A”surface 38 to the “B”surface 40 in one or more of the bolsterareas 30 and/or 31 and/or thecenter area 26 to provide aseat cushion 34 having varying hardness areas. In at least another embodiment, theseat cushion 34 can further be provided with protrusions extending from the “A” and/or the “B” surfaces 38 and 40 away from the other surface in the bolsterareas 30 and/or 31 and/or thecenter area 26 to provide aseat cushion 34 having varying hardness areas. For instance, theseat cushion 34 is configured so that one or more (or all) of the bolsters 30 and/or 31 is harder than thecentral seating pad 26. - In at least one embodiment, the present invention enables the modification of the hardness of the foam primarily in the
central seating pad 26, i.e., areas of typical consumer contact while driving, while keeping the other areas of theseat cushion 34, i.e., the bolsters 30 and 31, firmer to enable improved craftsmanship and durability performance and provide lateral support to occupants while traveling on curved roadways and during turning. Such a configuration enables thecentral seating pad 26 to be softer for improved occupant comfort while allowing the bolster(s) 30 and/or 31 to be harder to account for the typically higher loads placed upon the bolster(s) 30 and/or 31 upon occupant ingress and egress. Such a configuration can also assist theseat assembly 10 in achieving H-point specification without significantly modifying seat assembly packaging. In other words, the implementation of intrusions and/or protrusions in accordance with the present invention can modify theseat cushion 34 in such a way that allows theseat assembly 10 to achieve a desired H-point without having to change the overall shape or size of thecushion 34. Additionally, the implementation of intrusions (and in some instances the protrusions) can also assist theseat assembly 10 in achieving a weight reduction and/or cost reduction. - While the harness gradient can generally be achieved by providing intrusions such as holes and/or other geometric openings that extend between the “A” and the “B” surfaces 38 and/or 40, and/or protrusions on the
surfaces seat cushion 34, it is contemplated that the location, size, and/or shape of the intrusions and/or protrusions can vary as desired. However, in at least one embodiment, theseat cushion 34 of the present invention has a hardness gradient between at least one of the bolsters 30 and 31 and thecentral seating pad 26 area of theseat cushion 34 of between 8% to 25%. In other words, at least one of the bolsterareas central seating pad 26. In at least certain embodiments, theseat cushion 34 has a hardness gradient between the bolsters 30 and thecentral seating pad 26 of between 8% to 25%. The hardness can be measured by indentation force deflection (IFD) as measured by ASTM test method No. D3574. In another embodiment, theseat cushion 34 of the present invention has a hardness gradient between at least one of the bolsters 30 and 31 and thecentral seating pad 26 of theseat cushion 34 of between 10% and 20%, and in other embodiments of between 12% and 18%. - In at least one embodiment, the hardness of the
central seating pad 26 of theseat cushion 34, as measured by ASTM test method No. D3574, is between 100 and 300 newtons, and in other embodiments between 150 and 250 newtons. In at least another embodiment, the hardness of at least one of the bolsters 30 and 31, as measured by ASTM test method D3574, is between 230 and 350 newtons, and in other embodiments between 250 to 300 newtons. In at least certain embodiments, the hardness of each of the bolsters 30 and 31, as measured by ASTM test method D3574, is between 230 and 350 newtons and in other embodiments between 250 to 300 newtons. - Furthermore, in at least one embodiment, the
seat cushion 34 of the present invention has a hysterisis loss gradient between at least one of the bolsters 30 and 31 and thecentral seating pad 26 area of theseat cushion 34 of between 8% to 25%. In other words, at least one bolster area has a hysterisis loss that is at least 8% to 25% less than the hysterisis loss of thecentral seating pad 26. The hysterisis loss can be measured by indentation force deflection (IFD) as measured by ASTM test method No. D3574. In another embodiment, theseat cushion 34 of the present invention has a hysterisis loss gradient between at least one of the bolsters 30 and thecentral seating pad 26 of theseat cushion 34 of between 10% and 20%, and in other embodiments of between 12% and 18%. - In at least one embodiment, the front bolster 31 has a lower hardness gradient relative to the
central seating pad 26 than one or both of the side bolsters 30 to provide a front bolster 31 that is softer (primarily for comfort) than at least one of the side bolsters 30. In this embodiment, the front bolster has a hardness of 150 to 300 newtons, and in other embodiments of 200 to 250 newtons. In this embodiment, the hardness gradient between the front bolster 31 and at least one of thecentral seating pad 26 is 5% to 20%, and the hardness gradient between the front bolster 31 and the side bolsters 30 is 8% to 25%. In at least one other embodiment, the hardness gradient between the front bolster 31 and thecentral seating pad 26 is 8% to 18%, and the hardness gradient between at least one of the front bolster 31 and the side bolsters 30 is 10% to 22%. - Referring to
FIGS. 2 and 3 , schematic perspective and cross-sectional views of an embodiment of aseat cushion 34 is shown. In this embodiment, thecentral seating pad 26 has a number of openings orholes 50 that extend from the “A”surface 38 to the “B”surface 40. In at least one embodiment, theholes 50 include a generally axial, generallycylindrical wall 46 that extends between and connects the “A”surface 38 with the “B”surface 40. - While the
openings 50 are shown to be circular, it should be understood that theopenings 50 can vary in size and shape as desired. For instance, while theopenings 50 are shown to be cylindrical holes, it should be understood that they could be channels and/or slots, and/or frustoconical, conical, polygonyl or other geometric cutouts, such as rectangles, squares, triangles, honeycombs (as will be disclosed below), etc. - While the location, size and/or shape of the
openings 50 andprojections 52 can vary as desired, in at least one embodiment, the location, size and/or shape of the openings and/or projections can be selected based upon a counter response to pressure input of an average measurement of demographic matching consumers in static and dynamic measured clinics in the vehicle.FIGS. 8 and 9 illustrate examples of average pressure modeling of demographic matching consumers for a seat cushion and a seat back, respectively. InFIG. 8 , area a displays a pressure range of 1 to 20.9 mm Hg of pressure, area b displays a pressure range of 30 to 40.88 mm Hg of pressure, area c displays a pressure range of 40.9 to 60.8 mm Hg of pressure, area d displays a pressure range of 60.9 to 80.6 mm Hg of pressure, and area e displays a pressure range of 80.7 to 101 mm Hg of pressure. InFIG. 9 , area f displays a pressure range of 1 to 10.9 mm Hg of pressure, area g displays a pressure range of 11 to 20.8 mm Hg of pressure, and area h displays a pressure range of 20.9 to 30.7 mm Hg of pressure. - In at least one embodiment, the
cushion 34 can be tuned withopenings 50 and/orprojections 52 to provide areas of lower hardness in areas of expected higher occupant pressure. Thus, in at least one embodiment, the areas of expected higher occupant pressure will haveless openings 50 and/orprojections 52 and/or smaller openings than areas of expected lower occupant pressure. -
FIGS. 2 , 4 and 7 illustrate a few examples ofdifferent openings 50 and/orprojections 52 configurations. In at least the embodiment illustrated inFIG. 2 , there are 16openings 50 in the “A”surface 38 of thecushion 34. However, it should be understood the number, size, shape, and/or location ofopenings 50 can vary as desired. In at least the embodiment illustrated inFIG. 2 , the front bolster 31 has twoopenings 50 whereas the side bolsters 30 have none. This enables the front bolster 31 to have a lower hardness gradient relative to thecentral seating pad 26 than the side bolsters 30. While the front bolster 31 is illustrated inFIG. 2 as having twoopenings 50, it should be understood that the front bolsters could have less or more openings as desired. - In at least the embodiment illustrated in
FIG. 2 , thecentral seating pad 26 is divided into two halves, afront half 26 a and arear half 26 b, as schematically shown by imaginary dashedline 27. In at least this embodiment, therear half 26 b has a lower hardness gradient relative to the side bolsters 30 than thefront half 26 a to provide afront half 26 a that is softer (primarily for comfort) than therear half 26 b. In at least this embodiment, thefront half 26 a of thecentral seating pad 26 could have a hardness of 150 to 250 newtons and therear half 26 b could have a hardness of 200 to 350 newtons. In at least this embodiment, thefront half 26 a of thecentral seating pad 26 could have a hardness gradient relative to the side bolster 30 of 8 to 15% and therear half 26 b could have a hardness gradient relative to the side bolster 30 of 12 to 25%. - While the
front half 26 a and therear half 26 b are illustrated inFIG. 2 as having eight and sixopenings 50, respectively, it should be understood that the number ofopenings 50 in each half 26 a and 26 b could vary as desired. While it should be understood that the size and shape of theopenings 50 can vary as desired, in at least one embodiment, theopenings 50 have a diameter of 0.2 to 5 cm., in other embodiments of 0.5 to 3.25 cm., and in yet other embodiments of 1 to 2.5 cm. Furthermore, in at least one embodiment, theopenings 50 have and a depth or length of 5 to 15.25 cm., in other embodiments of 6 to 14 cm., and in yet other embodiments of 6.5 to 10 cm. Essentially, each of theopenings 50 have depth or length that is equal to the total depth or length of thecushion 34 in the area of the respective opening. Moreover, in at least one embodiment, it has been found useful to provide theopenings 50 with a radius of 4 to 15 mm, and in other embodiments of 6 to 12 mm, to assist in the molding of the seat cushion. -
FIG. 4 illustrates another embodiment of theseat cushion 34. In this embodiment,protrusions 52 can be provided on the “A”surface 38 and/or “B”surface 40 of theseat pad 26. Theprotrusions 52 extend away from the “A”surface 38 and/or “B”surface 40. Like theopenings 50, theprotrusions 52 can vary in size, shape, location and/or number as desired. Theprotrusions 52 help to provide desirable force resistance properties for thepad 26 in response to comfort, vibration and/or shock inputs. For instance, theprotrusions 52 can provide reinforcement at localized points of contact and/or can provide lower or higher hardness areas relative to their surrounding regions. - In at least one embodiment, the
protrusions 52 have a length of 0.2 to 5 cm., in other embodiments of 0.5 to 3.25 cm., and in yet another embodiment of 1 to 2.5 cm. In at least one embodiment, theprotrusions 52 have a width of 0.5 to 5 cm., in other embodiments of 0.5 to 3.25 cm., and in yet another embodiment of 1 to 2.5 cm. In at least one embodiment, theprotrusions 52 have a height of 0.1 to 5 cm, in other embodiments of 0.25 to 2.5 cm., and in yet other embodiments of 0.5 to 2 cm. Moreover, in at least another embodiment, each of theprotrusions 52 have a depth or length that is 5% to 50% of the total depth or thickness of thecushion 34 in the area of the respective protrusion, in other embodiments of 10% to 40% of the total depth or thickness of the cushion in the area of the respective protrusion, and in yet other embodiments of 15% to 35% of the total depth or thickness of the cushion in the area of the respective protrusion. It should be understood that the size, shape, and/or geometry of theopenings 50 and/orprotrusions 52 can vary from each other. For instance, one opening can be different in size, shape, and/or geometry from anotheropening 50 and/orprotrusion 52. - Moreover, while the
openings 50 can be provided to provide a density and/or hardness gradient to tailor the specific comfort requirements of the seat assembly, theopenings 50 could also be used to reduce weight of the overall seat assembly, and in particular thefoam cushion 34. For instance, the foam could be cored to have intrusions such as holes and/or channels in areas of large seating surfaces such as armrests and/or center portions between seat occupants. Furthermore, as discussed above, theopenings 50 can be provided to assist theseat assembly 10 in achieving a desired H-point and/or cost reduction. Moreover, while theseat assembly 10 has been described as having bolster portion(s) that are harder than the remainder of the seat assembly, it should be understood that the principles of the present invention can be used to manufacture seat assemblies having areas of the seat assemblies that are harder, or at least as hard, as one or more of the bolsters. - The
seat cushion 34 of the present invention can be made by a variety of methods. In at least one embodiment, theseat cushion 34 is made by molding wherein the intrusions and/or protrusions are molded into theseat cushion 34 during the molding operation. In this embodiment, the foam molding tool can be provided with protrusions and/or cavities around and/or within which the foam can be molded. In at least one embodiment, it has been found useful to provide molding tools having molding surfaces that result inopenings 50 and/orprotrusions 52 having a radius of 4 to 15 mm, and in other embodiments of 6 to 12 mm, to assist in the molding of the seat cushion. - Referring to
FIG. 5 , in at least another embodiment, intrusions (openings) 50 and/orprotrusions 52 are molded into afoam sub-assembly 60 which is then secured to a seat bottom 62 also having protrusions and/or opening. It should be understood that other manufacturing means could be used, such as die-cutting theopenings 50. In at least one embodiment, the seat bottom 62 has the “B”surface 40 and thesubassembly 60 has the “A”surface 38, however, it should be understood that this configuration could be reversed. Referring toFIG. 6 , the seat bottom 62 has acavity 66 within which sub-assembly 60 is received. In these embodiments, thesubassembly 60 can be secured to the seat bottom 62 by any suitable method such as adhesion and/or fasteners. -
FIG. 7 illustrates an embodiment where theopenings 50 andprotrusions 52 are honey-combed in shape. The honey-comb shape can provide an increased structural integrity relative to other shapes. For instance, the hexahedral wall structure can provide a relatively high force resistance efficiency. While theopenings 50 and theprotrusions 52 are shown to be the same shape inFIG. 7 , it should be understood that theopenings 50 could be shaped differently than theprotrusions 52. - While embodiments of the invention have been illustrated and described, it is not intended that these embodiments illustrate and describe all possible forms of the invention. Moreover, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from spirit and scope of the invention.
Claims (20)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/468,434 US20080073966A1 (en) | 2006-08-30 | 2006-08-30 | Vehicle seat assembly having a hardness gradient via hollowed sections and/or protrusions |
DE102007032077A DE102007032077A1 (en) | 2006-08-30 | 2007-07-10 | Vehicle seat assembly having a hardness gradient set via hollowed sections and / or protrusions |
GB0715843A GB2441417A (en) | 2006-08-30 | 2007-08-15 | Vehicle seat cushion with holes to make regions of the cushion softer than others |
GB0715844A GB2441418A (en) | 2006-08-30 | 2007-08-15 | Vehicle seat cushion with holes to make regions of the cushion softer than others |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US11/468,434 US20080073966A1 (en) | 2006-08-30 | 2006-08-30 | Vehicle seat assembly having a hardness gradient via hollowed sections and/or protrusions |
Publications (1)
Publication Number | Publication Date |
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US20080073966A1 true US20080073966A1 (en) | 2008-03-27 |
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ID=39078968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/468,434 Abandoned US20080073966A1 (en) | 2006-08-30 | 2006-08-30 | Vehicle seat assembly having a hardness gradient via hollowed sections and/or protrusions |
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Country | Link |
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US (1) | US20080073966A1 (en) |
DE (1) | DE102007032077A1 (en) |
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US20070294810A1 (en) * | 2006-06-23 | 2007-12-27 | Vierkant Erich C | Plumbing fixture seat |
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US20090096256A1 (en) * | 2007-10-11 | 2009-04-16 | Ts Tech Co., Ltd. | Seat, seat cushion and backrest thereof |
US20120299358A1 (en) * | 2009-12-04 | 2012-11-29 | Gerald Herbst | Cushion with aeration for a vehicle seat |
US10814752B2 (en) * | 2018-06-11 | 2020-10-27 | Tachi-S Co., Ltd. | Vehicle seat |
CN113165562A (en) * | 2018-12-14 | 2021-07-23 | 株式会社普利司通 | Seat cushion for vehicle |
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DE102008019045A1 (en) * | 2008-04-16 | 2009-10-22 | Bayerische Motoren Werke Aktiengesellschaft | Seat element or seat back element, particularly for vehicle, has pad element, which has cavity structure that is provided on side turned to user |
DE102010012212B4 (en) * | 2010-03-19 | 2012-06-14 | F.S. Fehrer Automotive Gmbh | Seat cushion with air duct |
US8215714B2 (en) | 2010-05-17 | 2012-07-10 | Lear Corporation | Vehicle seat assembly with interlocking layered seating system |
DE102014004983A1 (en) * | 2014-04-04 | 2015-10-08 | Elisana S.A.R.L. | Vehicle seat cushion with foam springs |
DE102018105488B4 (en) | 2018-03-09 | 2021-01-21 | F.S. Fehrer Automotive Gmbh | Upholstery element for a vehicle seat |
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Cited By (12)
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US20070294810A1 (en) * | 2006-06-23 | 2007-12-27 | Vierkant Erich C | Plumbing fixture seat |
US8312571B2 (en) * | 2006-06-23 | 2012-11-20 | Kohler Co. | Plumbing fixture seat |
US8850629B2 (en) | 2006-06-23 | 2014-10-07 | Kohler Co. | Plumbing fixture seat |
US20090001801A1 (en) * | 2007-06-26 | 2009-01-01 | Gold Bug, Inc. | Breathable infant support pad and head support |
US7588291B2 (en) * | 2007-06-26 | 2009-09-15 | Gold Bug, Inc. | Breathable infant support pad and head support |
US20090096256A1 (en) * | 2007-10-11 | 2009-04-16 | Ts Tech Co., Ltd. | Seat, seat cushion and backrest thereof |
US7857395B2 (en) * | 2007-10-11 | 2010-12-28 | Ts Tech Co., Ltd. | Seat, seat cushion and backrest thereof |
US20120299358A1 (en) * | 2009-12-04 | 2012-11-29 | Gerald Herbst | Cushion with aeration for a vehicle seat |
US9096158B2 (en) * | 2009-12-04 | 2015-08-04 | Grammer Ag | Ventilated padding for a vehicle seat |
US10814752B2 (en) * | 2018-06-11 | 2020-10-27 | Tachi-S Co., Ltd. | Vehicle seat |
CN113165562A (en) * | 2018-12-14 | 2021-07-23 | 株式会社普利司通 | Seat cushion for vehicle |
US11634054B2 (en) | 2018-12-14 | 2023-04-25 | Archem Inc. | Vehicle seat pad |
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