US5997035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin air bag
Assignee: Takata Corp
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Filing: 1997-08-06
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Granted: 1999-12-07
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Expires: 2017-08-06
Abstract
Abstract To design an air bag in such a manner that a joint between synthetic resin sheets composing the air bag is directed to an instrument panel when the air bag is deployed, an air bag 1 is formed by joining together a circular front panel 2 and a circular rear panel 3 having an opening 4 through which an inflator is inserted in the center of the rear panel 3. The front and rear panels 2 and 3 are each made of synthetic resin sheet. The thickness of the front panel 2 is greater than that of the rear panel 3 so that a joint 5 is directed to an instrument panel when the air bag is deployed.
Inventors
- 👤 Kinji Hirai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:01
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/23; B60R21/235; B29; B29C; B29C65/00; B29C65/48; B29C65/50; B29C65/5057; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/133; B29C66/20; B29C66/24; B29C66/242; B29C66/2422; B29C66/24221; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/735; B29C66/7352; B29C66/73521; B29C65/02; B29C66/71; B29L; B29L2022/00; B29L2022/02; B60R2021/23504; B60R2021/23519; B60R2021/23571; B60R2021/2358; B60R2021/2359
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
178 words
A resin air bag comprising: a plurality of resin sheets, peripheries of the resin sheets being lapped one over the other and joined together at a joined portion to form a pouch shaped air bag; wherein each of the sheets comprises an inner surface which faces in an inside direction of the air bag and an outer surface which faces in an outside direction of the air bag; the inner surface of one of said sheets is in contact with the inner surface of the other sheet and the joined portion is positioned to extend outwardly from a periphery of the air bag when the air bag is deployed; further wherein the sheet which is to be positioned closest to an occupant of a vehicle in which the air bag is deployed has an unfolded thickness greater than that of the sheet which is to be positioned farthest away from the occupant only at and around the joined portion sufficient to allow the joined portion to be folded away from the occupant upon deployment of said air bag.
Claim 2
Dependent Claim
178 words
A resin air bag comprising: a plurality of resin sheets, peripheries of the resin sheets being lapped one over the other and joined together at a joined portion to form a pouch shaped air bag; wherein each of the sheets comprises an inner surface which faces in an inside direction of the air bag and an outer surface which faces in an outside direction of the air bag; the inner surface of one of said sheets is in contact with the inner surface of the other sheet and the joined portion is positioned to extend outwardly from a periphery of the air bag when the air bag is deployed; further wherein the sheet which is to be positioned closest to an occupant of a vehicle in which the air bag is deployed has an unfolded thickness greater than that of the sheet which is to be positioned farthest away from the occupant only at and around the joined portion sufficient to allow the joined portion to be folded away from the occupant upon deployment of said air bag.
Claim 3
Dependent Claim
40 words
A resin air bag according to claim 1, wherein the air bag is a driver-side air bag, the sheets comprises a circular front panel and a circular rear panel, the air bag being formed by joining peripheries of said panels.
Claim 4
Dependent Claim
37 words
A resin air bag according to claim 1, wherein the sheet which is to be positioned closest to the occupant has a greater thickness at and around the joined portion than in the remainder of the sheet.
Claim 5
Dependent Claim
184 words
A resin air bag comprising: a plurality of resin sheets, peripheries of the resin sheets being lapped one over the other and joined together at a joined portion to form a pouch shaped air bag; wherein each of the sheets comprises an inner surface which faces in an inside direction of the air bag and an outer surface which faces in an outside direction of the air bag; the inner surface of one of said sheets is in contact with the inner surface of the other sheet and the joined portion is positioned to extend outwardly from a periphery of the air bag when the air bag is deployed; further wherein the sheet which is to be positioned closest to an occupant of a vehicle in which the air bag is deployed has a stiffness greater than and a thickness substantially equal to that of the sheet which is to be positioned farthest away from the occupant at least at and around the joined portion sufficient to allow the joined portion to be folded away from the occupant upon deployment of said air bag.
Claim 6
Dependent Claim
184 words
A resin air bag comprising: a plurality of resin sheets, peripheries of the resin sheets being lapped one over the other and joined together at a joined portion to form a pouch shaped air bag; wherein each of the sheets comprises an inner surface which faces in an inside direction of the air bag and an outer surface which faces in an outside direction of the air bag; the inner surface of one of said sheets is in contact with the inner surface of the other sheet and the joined portion is positioned to extend outwardly from a periphery of the air bag when the air bag is deployed; further wherein the sheet which is to be positioned closest to an occupant of a vehicle in which the air bag is deployed has a stiffness greater than and a thickness substantially equal to that of the sheet which is to be positioned farthest away from the occupant at least at and around the joined portion sufficient to allow the joined portion to be folded away from the occupant upon deployment of said air bag.
Claim 7
Dependent Claim
14 words
A resin air bag according to claim 1, wherein said resin is synthetic resin.
Claim 8
Dependent Claim
77 words
A resin air bag as recited in claim 4, wherein said sheet which is to be positioned closest to an occupant of a vehicle in which the air bag is deployed comprises a first resin and said sheet which is to be positioned farthest away from the occupant comprises a second resin and wherein said sheet comprising said first resin has a stiffness 115% to 200% greater than a stiffness of said sheet comprising said second resin.
Claim 9
Dependent Claim
33 words
A resin air bag as recited in claim 6, wherein said sheet comprising said first resin has a stiffness 120% to 150% greater than a stiffness of said sheet comprising said second resin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-06 | 2003-06-07 | 2003-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-06 | 2007-06-07 | 2007-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-06 | 2011-06-07 | 2011-12-07 | $7700.00 | Window Closed / Lapsed |