US4130252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat belt system
Assignee: Tokai Rika Co Ltd
•
Filing: 1977-07-25
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Granted: 1978-12-19
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Expires: 1997-07-25
Abstract
Abstract A seat belt restraining system utilizing restraining belts which are wound up on a single retractor shaft one over the other. In the seat belt restraining system at least one of the restraining belts is provided along its entire length with a material which is more rigid than the restraining belt but which can also be bent so that the restraining belt can be wound up by a retractor mechanism.
Inventors
- 👤 Mamoru Mori
- 👤 Mitsuo Inukai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:18
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/02; B60R22/023; B60R2022/021; B60R2022/026; B60R22/34; B60R2022/3424
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
A seat belt retractor system for retracting two seat belts into a single retractor, comprising: a retractor case; a base provided within said retractor case; a retractor shaft rotatably supported by said base; two seat belts coupled to said retractor shaft and wound one over the other such that one seat belt is an inner side seat belt and one is an outer side seat belt and extendable from said retractor case; and a bias means coupled to substantially the total length of said inner side seat belt, said bias means being more rigid than said seat belt but being sufficiently flexible to be wound up on said retractor shaft with said seat belt whereby said seat belt can be smoothly extended and retracted without becoming slack within said retractor case.
Claim 2
Dependent Claim
131 words
A seat belt retractor system for retracting two seat belts into a single retractor, comprising: a retractor case; a base provided within said retractor case; a retractor shaft rotatably supported by said base; two seat belts coupled to said retractor shaft and wound one over the other such that one seat belt is an inner side seat belt and one is an outer side seat belt and extendable from said retractor case; and a bias means coupled to substantially the total length of said inner side seat belt, said bias means being more rigid than said seat belt but being sufficiently flexible to be wound up on said retractor shaft with said seat belt whereby said seat belt can be smoothly extended and retracted without becoming slack within said retractor case.
Claim 3
Dependent Claim
17 words
A seat belt retractor system according to claim 1, wherein said bias means is a nylon film.
Claim 4
Dependent Claim
24 words
A seat belt retractor system according to claim 1, wherein said bias means is continuous along the length of said inner side seat belt.
Claim 5
Dependent Claim
127 words
A seat belt retractor system for winding up two seat belts on a single retractor shaft one over the other, comprising: a retractor case; a base provided within said retractor case; a retractor shaft rotatably supported by said base; two seat belts coupled to said retractor shaft and extendable and retractable from said retractor case, said seat belts forming an inner side and an outer side seat belt; and a bias means coupled to substantially the total length of said inner side seat belt, said bias means being more rigid than said seat belt but being sufficiently flexible to be wound up on said retractor shaft with said seat belts whereby said seat belts can be smoothly extended and retracted without becoming slack within said retractor case.
Claim 6
Dependent Claim
127 words
A seat belt retractor system for winding up two seat belts on a single retractor shaft one over the other, comprising: a retractor case; a base provided within said retractor case; a retractor shaft rotatably supported by said base; two seat belts coupled to said retractor shaft and extendable and retractable from said retractor case, said seat belts forming an inner side and an outer side seat belt; and a bias means coupled to substantially the total length of said inner side seat belt, said bias means being more rigid than said seat belt but being sufficiently flexible to be wound up on said retractor shaft with said seat belts whereby said seat belts can be smoothly extended and retracted without becoming slack within said retractor case.
Claim 7
Dependent Claim
17 words
A seat belt retractor system according to claim 4 wherein said bias means is a nylon film.
Claim 8
Dependent Claim
16 words
A seat belt retractor system according to claim 5 wherein said nylon film is normally straight.
Claim 9
Dependent Claim
24 words
A seat belt retractor system according to claim 4 wherein said bias means is continuous along the length of said inner side seat belt.
Claim 10
Dependent Claim
19 words
A seat belt retractor system according to claim 4 wherein both seat belts are formed from a continuous belt.
References Cited (Backward Citations)
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US3321245A
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US3529865A
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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) | 1981-12-18 | 1982-06-19 | 1982-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-18 | 1986-06-19 | 1986-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-18 | 1990-06-19 | 1990-12-19 | $7700.00 | Window Closed / Lapsed |