WO1990004323A2 - Athletic shoe having inflatable bladder - Google Patents
Athletic shoe having inflatable bladder Download PDFInfo
- Publication number
- WO1990004323A2 WO1990004323A2 PCT/US1990/000753 US9000753W WO9004323A2 WO 1990004323 A2 WO1990004323 A2 WO 1990004323A2 US 9000753 W US9000753 W US 9000753W WO 9004323 A2 WO9004323 A2 WO 9004323A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bladder
- pump
- layer
- athletic shoe
- sole
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/26—Tongues for shoes
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/02—Uppers; Boot legs
- A43B23/0245—Uppers; Boot legs characterised by the constructive form
- A43B23/028—Resilient uppers, e.g. shock absorbing
- A43B23/029—Pneumatic upper, e.g. gas filled
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0405—Linings, paddings or insertions; Inner boots
- A43B5/0407—Linings, paddings or insertions; Inner boots inflatable
Definitions
- This invention relates to improved athletic shoes of the type having flexible uppers and, more particularly, to athletic shoes suitable for exercise activities in a gymnasium or on specially equipped fields, for example for basketball.
- footwear for sporting purposes must perform as a stable and comfortable support point for the body while subject to various types of stress. It is important that the shoe comfortably fit over the foot. Avoiding, as far as possible, mutual displacements between the footwear and the foot results in less straining of the ankle and other parts of the foot.
- Articles of footwear typically include an upper and a sole, and are sold in a variety of sizes according to the length and width of the foot.
- the upper may be adjustable to accommodate various foot contours. Such adjustment may include medial and lateral side portions which, when tensioned, provide support to the foot.
- the upper may include an ankle portion which encompasses a portion of the ankle region of the foot and thereby provides support thereto.
- lacing alone, however, suffers from several disadvantages, for example, when the shoe laces or strap is drawn too tightly, the fastening system can cause pressure on the instep of the foot.
- the present invention is an athletic shoe having an inflatable tongue or bladder which fits the anatomical shape of a foot and avoids possible gaps or empty regions between the upper and the foot.
- the present invention is an athletic shoe having an upper made of a flexible material.
- a bladder is disposed within the flexible upper and is in communication with a pump which is formed from a flat bottom layer and a top layer which forms a cavity between the bottom layer and the top layer.
- a foam member is disposed within the cavity.
- the bladder has a lateral side portion, a medial side portion, and an instep portion.
- footwear tongue is the compensation of the inequalities or bumps due to the interlacement of the laces in the buckling zone.
- Another advantage of the invention is that a shoe is provided which helps push the heel of a wearer back in the shoe, toward a heel counter.
- Figure 1 is a perspective view of footwear provided with the tongue according to this invention
- Figure 2 shows a plan view of the tongue of Figure 1;
- Figure 3 is another embodiment of an athletic shoe utilizing the present invention.
- Figure 4 is a perspective view of the bladder of the present invention
- Figure 5 is a schematic of the pump system utilized in the invention
- Figure 6 is a cross-sectional view of an embodiment of a pump of the present invention.
- Figure 7 is a top view of a pump of the present invention.
- the sport footwear of the boot extension type is provided with a double wall tongue 1, within which there are arranged some bags 2 which can be inflated through a small side tube 3 which is in turn provided with a valve for inflating, through a suitable tool.
- inflatable bags 2 may be all mutually connected, whereby pressure is uniformly distributed according to the shape of weld lines 4.
- Inflatable bags 2 have a slightly curved outline which diverges from the tongue base to the tongue tip, i.e., following the shape of said tongue, while at the free end of tongue 1 weld lines 4' are arranged at right angles in such a way as to define three bags, mutually connected as well, wherein ' the two lateral side ones are in the shape of quadrants of a circle.
- welding spots or areas 5 are provided in a central region of these end bags respectively.
- two rows of through perforations 6 are provided, whose outline follows the one of the longitudinal inflatable bags 2.
- the base of the tongue which must be fastened to the shoe upper, extends into a flap 7 of the same gas-tight material comprising the walls of the inflatable bags 2.
- Shoe 20 incorporates the support system of the present invention.
- the support system which will be discussed in detail below, allows a wearer to select desired pressure.
- a variety of shoe structures are capable of incorporating the present invention.
- shoe 20 include a sole, shown generally at 22, and an upper, shown generally at 24.
- the upper is made primarily from a flexible material such as leather.
- Upper 24 may be attached to sole 22 by any known methods.
- Figure 3 shows a shoe for the left foot.
- a shoe incorporating the principles of the present invention for the right foot would be substantially a mirror image of Figure 3.
- Shoe 20 may include a heel stabilizer 26, a tongue 28, lace 30 and an eyestay 32. Naturally, many modifications can be made to the upper 24 without effecting the operation of the invention.
- the present invention is a unique device for providing ankle support to the foot of a wearer.
- the shoe provides for a custom fit.
- a system is incorporated into an athletic shoe which enables a user to inflate a bladder to a desired pressure with a conveniently placed pump. The bladder, when inflated, helps push the heel of a wearer toward the back of the shoe, into a heel counter.
- FIG. 3 a support system of the present invention is shown.
- This system includes a pump 34 (shown in Figure 3) which is in fluid communication with inflatable bladder 36 (shown in Figure 4).
- a pump 34 is used for inflating bladder 36.
- Pump 34 includes a top layer 38 and a bottom layer 40, both of which are made from any suitable material, for example, a urethane film.
- a urethane film which is applicable in the present invention is available from J.P. Stevens & Co., Inc., Northampton, MA, as product designation MP1880.
- Disposed between top layer 38 and bottom layer 40 is a foam member 42.
- the function of foam member 42 is to add resiliency to pump 34.
- Foam member 42 may b ⁇ made of any suitable porous material which is capable of allowing fluid to pass 5 therethrough.
- a suitable material is a polyurethane open-cell foam having 10 to 55 PPI (pores per inch). Such as material is available from United Foam Plastics of Georgetown, MA.
- PPI pores per inch
- a molded component in a non-compressed state could be substituted for
- the bottom layer 40 of the pump 34 may be a flat sheet of material which forms the side of the pump 34 which lies adjacent to upper 24 as seen in Figure 1.
- Top layer 38 is a vacuum formed sheet which is shaped to define a cavity, and foam member 42 is commensurate in size to the cavity and is
- the top layer 38 forms a first surface 44 which provides a surface convenient for forcing air from the cavity into bladder 36.
- the top layer 38 also has edge 46 which provides a surface for suitable attachment to the bottom layer 40.
- a suitable method of attachment is by the application of high radio frequency (r.f.) to edge 46 and the bottom layer 40.
- Application of the r.f. will cause the top and bottom layers 38 and 40, respectively, to adhere to one another.
- attachment methods other than r.f. welding are other than r.f. welding
- pump 34 is shown in which the cavity formed by top layer 38 and bottom layer 40 is approximately 1.0" x 1.0" x 0.5". The precise size and shape of the pump may be varied.
- an inlet port 50 and an outlet port 52 are provided on pump 34. These ports may extend between the top layer 38 and the bottom layer 40 as shown or may extend through either the top layer 38 or bottom layer 40.
- the pump 34 will generally be disposed on the upper 24 of athletic shoe 20. In Figure 1, pump 34 is shown to be located in the back of the shoe with the bottom layer 40 being adjacent or next to the material forming the upper.
- the pump 34 is in fluid communication with the atmosphere via inlet tube 54.
- the outlet tube 56 is in fluid communication with the bladder 36. This can be seen in the schematic representation of the system which is depicted in Figure 6.
- the tubing which may be utilized with the present invention may be comprised of any suitable flexible, small diameter tubing material which is capable of being affixed to pump 34 and bladder 36.
- One example of tubing which is suitable for use with the present invention is a 1/16 inch I.D. x 1/8 inch O.D. clear polyurethane tubing which is available from Industrial Specialties, Inc., Englewood, Colorado.
- the inlet tube 54 has thereon an inlet check valve 56 which assures that air only flows into pump 34 from the atmosphere.
- an inlet check valve 56 which assures that air only flows into pump 34 from the atmosphere.
- One example of acceptable check valves for use with the present invention is model #2804-401, available from Air Logic, Racine, Wisconsin.
- the outlet tube 55 has an exit check valve 58 which ensures that, after bladder 36 is inflated to a desired pressure, air does not flow out of the bladder 36 through pump 34.
- the outlet tube 55 is connected to a T-connector 60.
- the exact shape of the T-connector 60 need not be a T-shape.
- the T-connector 60 enables air passing through outlet tube 55 to be in fluid communication with the bladder through a bladder inlet 62.
- a release valve 64 is in fluid communication with the bladder 36 to enable venting of the bladder 36.
- Valve 64 may be attached to an outlet 66 of T-connector 60 or may be affixed directly to the bladder
- the pump 36 is depressed, thereby compressing foam member 42.
- the air which previously occupied the cavity in the pump 36 is prevented by inlet check valve 56 from escaping to the atmosphere via inlet tube 54. Therefore, the air is forced through outlet tube 55, through check valve 58 and into bladder 36.
- the pump 34 is manually depressed, it is released.
- the foam and the other materials used to form the pump are made of materials with good memory and therefore the pump 34 quickly returns to its pre-depressed state. As it returns to its shape, ambient air is sucked through inlet tube 54 via the one-way inlet check valve 56, into the cavity of pump 34.
- the pump is then depressed again and the process is repeated until the bladder 36 is inflated to a desired pressure.
- release valve 64 may be depressed to allow air to escape from bladder 36. This release valve 64 may be positioned in a number of different locations as long as it is in fluid communication with the bladder 36.
- bladder 36 is shown.
- Bladder 36 may be affixed to upper 24 of shoe 20, it may be affixed to sole 22, or it may be affixed to both upper 24 and sole 22.
- the bladder 36 is substantially fluid-tight. If affixation is required, it may be accomplished by any known methods, for example stitching and adhesive bonding. It is preferred that bladder 36 encompass at least a portion of the foot of a wearer, and more particularly, encompass at least a portion of the instep and ankle regions of the foot. It may, however, be possible for the bladder to only form the tongue of a shoe, as previously described in reference to Figures 1 and 2.
- bladder 36 is not shown in Figures 3-7 to be compartmented, individual compartments or fluid receiving chambers could be provided in various areas of bladder 36.
- One example would be to heat-seal seams along bladder 36. Such seams could also be perforated to allow ventilation to the foot.
- Such compartments may be interconnected or may be individually inflated by pump 34 or by several pumps.
- Bladder 36 is similar in construction to pump 34. That is, bladder 36 is comprised of an interior layer 68 and an exterior layer 70. Both interior layer 68 and exterior layer 70 are comprised of a suitable material, for example, a urethane film such as the one described above with regard to top layer 38 and bottom layer 40 of pump 34. Disposed between interior layer 68 and exterior layer 70 is a foam layer 72. Foam layer 72 may be comprised of any suitable resilient material capable of allowing fluid to pass therethrough. One example is an open-cell foam such as the one described above with regard to foam member 42 of pump 34.
- Interior layer 68, foam layer 72 and exterior layer 70 are attached at their edges to form bladder 36. Such attachment may be by any know methods, for example, by high radio frequency which welds the layers together, as described above with regard to pump 34.
- bladder 36 may form a part of upper 24 such that exterior layer 70 forms the interior of upper 24. Exterior layer 70 may have a brushed or napped surface facing the foot for improved comfort and may form the interior of the upper.
- a foot compatible liner may be affixed to the foot contacting surface of exterior layer 70.
- bladder 36 includes a foot opening 74, through which the foot of a wearer is inserted.
- Bladder 36 also includes a medial side portion 76, a lateral side portion 78, an instep portion 80, which underlies the tongue 28 of shoe 20, and a forefoot portion 82.
- Forefoot portion 82 connects medial side portion 76 and lateral side portion 78 with instep portion 80.
- forward end 84 of bladder 36' terminates at a point short of the toe receiving end of sole 22.
- forward end 5 82 could extend the full length of sole 22, thereby covering the toes of a wearer, or forward end 82 could also be positioned at any point between the toe and heel receiving ends of sole 22.
- bladder 36 is shown to terminate where
- bladder 36 could extend along the top surface of sole 22, thereby underlying the foot of a wearer.
- bladder 36 affords support to the foot of a wearer otherwise unavailable from upper 28 alone.
- bladder 40 provides increased cushioning to the foot by molding to the particular contour of the foot and thereby, accommodating for anatomical irregularities inherent
- bladder 36 allows the wearer individualized interior sizing of shoe 20.
- bladder 36 prevents uncomfortable localized pressure from the fastening system of the shoe by providing a cushion between the foot and the fastening system.
- 25 provides uniform cushioning by which pressure from the fastening system is distributed across bladder 36.
- a bladder may be designed which conforms to parts of the foot other than those parts specified above. It is contemplated, for instance, that the invention may be utilized to be used under the sole of a user. It is intended that the scope of the invention be defined by the claims appended hereto.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30756689A | 1989-02-08 | 1989-02-08 | |
US307,566 | 1989-02-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1990004323A2 true WO1990004323A2 (en) | 1990-05-03 |
WO1990004323A3 WO1990004323A3 (en) | 1990-06-28 |
Family
ID=23190302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1990/000753 WO1990004323A2 (en) | 1989-02-08 | 1990-02-08 | Athletic shoe having inflatable bladder |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0411099A4 (en) |
JP (1) | JPH03503855A (en) |
AU (1) | AU630929B2 (en) |
CA (1) | CA2026782C (en) |
ES (1) | ES2039319T1 (en) |
WO (1) | WO1990004323A2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0457823A1 (en) * | 1989-02-08 | 1991-11-27 | Reebok Int Ltd | An article of footwear. |
US5155865A (en) * | 1991-04-23 | 1992-10-20 | Lisco, Inc. | Inflatable bladders for game gloves |
US5155864A (en) * | 1991-04-23 | 1992-10-20 | Lisco, Inc. | Inflatable bladders for game gloves |
EP0536202A1 (en) * | 1990-05-30 | 1993-04-14 | Reebok International Ltd. | Athletic shoe having inflatable bladder |
EP0594219A2 (en) * | 1989-03-17 | 1994-04-27 | Nike International Ltd | Athletic shoe |
EP0630590A1 (en) * | 1993-05-18 | 1994-12-28 | NORDICA S.p.A. | Fit adapter, particularly for sports shoes |
US5427577A (en) * | 1992-01-17 | 1995-06-27 | Dba Products Co. Inc. | Selectively pneumatic bowling glove |
US10251450B2 (en) | 2002-07-02 | 2019-04-09 | Reebok International Limited | Shoe having an inflatable bladder |
WO2023107889A1 (en) * | 2021-12-07 | 2023-06-15 | Nike Innovate C.V. | Bladders, footwear uppers including bladders, and articles of footwear including bladders in the upper |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8256141B2 (en) | 2006-12-13 | 2012-09-04 | Reebok International Limited | Article of footwear having an adjustable ride |
US8414275B1 (en) | 2007-01-11 | 2013-04-09 | Reebok International Limited | Pump and valve combination for an article of footwear incorporating an inflatable bladder |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB189626637A (en) * | 1896-11-24 | 1897-07-31 | Gibson Thompson | An Improvement in Boots and Shoes. |
GB189923547A (en) * | 1899-11-25 | 1900-07-21 | Albert Brammer | An Improved Instep Stiffener for Boots and Shoes. |
US3273263A (en) * | 1963-11-15 | 1966-09-20 | Robert Klima Fa | Shoe, in particular, ski-boot |
US3716930A (en) * | 1971-04-23 | 1973-02-20 | H Brahm | Combination massaging, air-cushioning and ventilating insole |
US3744159A (en) * | 1971-03-20 | 1973-07-10 | K Nishimura | Sports shoe |
US4232459A (en) * | 1977-11-02 | 1980-11-11 | Franco Vaccari | Ski boots |
US4458429A (en) * | 1980-07-21 | 1984-07-10 | Sarragan S.A. | Tongue for a shoe, particularly a sport shoe, and a shoe including such a tongue |
EP0152401A2 (en) * | 1984-02-16 | 1985-08-21 | Koflach Sportgeräte Gesellschaft m.b.H | Valve arrangement for the inflation and deflation of an air cushion |
US4631843A (en) * | 1984-08-06 | 1986-12-30 | Dolomite S.P.A. | Rear-entry ski boot |
US4662087A (en) * | 1984-02-21 | 1987-05-05 | Force Distribution, Inc. | Hydraulic fit system for footwear |
US4702022A (en) * | 1985-10-11 | 1987-10-27 | Porcher Pierre O | Ski boot |
US4730403A (en) * | 1985-07-24 | 1988-03-15 | Raichle Sportschuh Ag | Pressurized ski boot |
US4763426A (en) * | 1986-04-18 | 1988-08-16 | Michael Polus | Sport shoe with pneumatic inflating device |
-
1990
- 1990-02-08 CA CA002026782A patent/CA2026782C/en not_active Expired - Lifetime
- 1990-02-08 EP EP19900903493 patent/EP0411099A4/en not_active Withdrawn
- 1990-02-08 AU AU50998/90A patent/AU630929B2/en not_active Expired
- 1990-02-08 JP JP2503554A patent/JPH03503855A/en active Pending
- 1990-02-08 WO PCT/US1990/000753 patent/WO1990004323A2/en not_active Application Discontinuation
- 1990-02-08 ES ES199090903493T patent/ES2039319T1/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB189626637A (en) * | 1896-11-24 | 1897-07-31 | Gibson Thompson | An Improvement in Boots and Shoes. |
GB189923547A (en) * | 1899-11-25 | 1900-07-21 | Albert Brammer | An Improved Instep Stiffener for Boots and Shoes. |
US3273263A (en) * | 1963-11-15 | 1966-09-20 | Robert Klima Fa | Shoe, in particular, ski-boot |
US3744159A (en) * | 1971-03-20 | 1973-07-10 | K Nishimura | Sports shoe |
US3716930A (en) * | 1971-04-23 | 1973-02-20 | H Brahm | Combination massaging, air-cushioning and ventilating insole |
US4232459A (en) * | 1977-11-02 | 1980-11-11 | Franco Vaccari | Ski boots |
US4458429A (en) * | 1980-07-21 | 1984-07-10 | Sarragan S.A. | Tongue for a shoe, particularly a sport shoe, and a shoe including such a tongue |
EP0152401A2 (en) * | 1984-02-16 | 1985-08-21 | Koflach Sportgeräte Gesellschaft m.b.H | Valve arrangement for the inflation and deflation of an air cushion |
US4662087A (en) * | 1984-02-21 | 1987-05-05 | Force Distribution, Inc. | Hydraulic fit system for footwear |
US4631843A (en) * | 1984-08-06 | 1986-12-30 | Dolomite S.P.A. | Rear-entry ski boot |
US4730403A (en) * | 1985-07-24 | 1988-03-15 | Raichle Sportschuh Ag | Pressurized ski boot |
US4702022A (en) * | 1985-10-11 | 1987-10-27 | Porcher Pierre O | Ski boot |
US4763426A (en) * | 1986-04-18 | 1988-08-16 | Michael Polus | Sport shoe with pneumatic inflating device |
Non-Patent Citations (1)
Title |
---|
See also references of EP0411099A1 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0457823A4 (en) * | 1989-02-08 | 1992-11-19 | Reebok International Ltd: | An article of footwear |
US5893219A (en) * | 1989-02-08 | 1999-04-13 | Reebok International Ltd. | Article of footwear |
EP0457823A1 (en) * | 1989-02-08 | 1991-11-27 | Reebok Int Ltd | An article of footwear. |
EP0594219A2 (en) * | 1989-03-17 | 1994-04-27 | Nike International Ltd | Athletic shoe |
EP0594219A3 (en) * | 1989-03-17 | 1994-08-03 | Nike International Ltd | |
EP0536202A1 (en) * | 1990-05-30 | 1993-04-14 | Reebok International Ltd. | Athletic shoe having inflatable bladder |
EP0536202A4 (en) * | 1990-05-30 | 1994-02-09 | Reebok International Ltd. | |
US5155864A (en) * | 1991-04-23 | 1992-10-20 | Lisco, Inc. | Inflatable bladders for game gloves |
US5155865A (en) * | 1991-04-23 | 1992-10-20 | Lisco, Inc. | Inflatable bladders for game gloves |
US5427577A (en) * | 1992-01-17 | 1995-06-27 | Dba Products Co. Inc. | Selectively pneumatic bowling glove |
EP0630590A1 (en) * | 1993-05-18 | 1994-12-28 | NORDICA S.p.A. | Fit adapter, particularly for sports shoes |
US10251450B2 (en) | 2002-07-02 | 2019-04-09 | Reebok International Limited | Shoe having an inflatable bladder |
WO2023107889A1 (en) * | 2021-12-07 | 2023-06-15 | Nike Innovate C.V. | Bladders, footwear uppers including bladders, and articles of footwear including bladders in the upper |
WO2023107887A1 (en) * | 2021-12-07 | 2023-06-15 | Nike Innovate C.V. | Bladders, footwear uppers including bladders, and articles of footwear including bladders in the upper |
Also Published As
Publication number | Publication date |
---|---|
EP0411099A4 (en) | 1992-08-26 |
EP0411099A1 (en) | 1991-02-06 |
ES2039319T1 (en) | 1993-10-01 |
AU630929B2 (en) | 1992-11-12 |
JPH03503855A (en) | 1991-08-29 |
CA2026782A1 (en) | 1990-08-09 |
WO1990004323A3 (en) | 1990-06-28 |
AU5099890A (en) | 1990-05-14 |
CA2026782C (en) | 1998-04-07 |
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