US3897106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle safety belt
Assignee: Takata Kogyo Co Ltd
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Filing: 1973-07-16
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Granted: 1975-07-29
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Expires: 1993-07-16
Abstract
Abstract A vehicle safety belt system of the three point type includes a lap belt and a shoulder belt the shoulder belt having lower and upper sections, the upper section having greater elongation under a predetermined load and a greater plastic deformation than that of the shoulder belt lower portion and the lap belt so as to provide the optimum action both in the restraint of the occupant attendant to collision and in minimizing occupant reactive fling back or back lash. The upper part of the shoulder belt may be of the same width as the lower part but of different construction or yarns of high elongation and plastic deformation or it may be of lesser width than the shoulder belt lower part.
Inventors
- 👤 Takezo Takada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:22
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/12; B60R22/16; D; D03; D03D; D03D11/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
180 words
A vehicle safety belt of the three point type for restraining an occupant in a seat comprising a shoulder belt including upper and lower sections joined in series at an elongation transition section which is disposed at the normal position of the shoulder of said seat occupant when said shoulder belt is in applied position, and a lap belt coupled to said shoulder belt to form a three point safety belt system, said shoulder belt upper section having a greater elongation per unit length at a predetermined load than said shoulder belt lower section and than said lap belt and further characterized in that said belt upper section possesses an elongation versus load characteristic wherein said belt upper section recoverably extends with increasing load up to a predetermined value and then non-recoverably extends under little load increase for a predetermined elongation and thereafter further recoverably extends with increased load to a predetermined point, release of the stress thereafter on said belt upper section resulting in its contraction to a length greater than its original length by substantially said nonrecoverable elongation.
Claim 2
Dependent Claim
180 words
A vehicle safety belt of the three point type for restraining an occupant in a seat comprising a shoulder belt including upper and lower sections joined in series at an elongation transition section which is disposed at the normal position of the shoulder of said seat occupant when said shoulder belt is in applied position, and a lap belt coupled to said shoulder belt to form a three point safety belt system, said shoulder belt upper section having a greater elongation per unit length at a predetermined load than said shoulder belt lower section and than said lap belt and further characterized in that said belt upper section possesses an elongation versus load characteristic wherein said belt upper section recoverably extends with increasing load up to a predetermined value and then non-recoverably extends under little load increase for a predetermined elongation and thereafter further recoverably extends with increased load to a predetermined point, release of the stress thereafter on said belt upper section resulting in its contraction to a length greater than its original length by substantially said nonrecoverable elongation.
Claim 3
Dependent Claim
181 words
A vehicle safety belt of the three point type for restraining an occupant in a seat comprising a shoulder belt including upper and lower sections joined in series at an elongation transition section which is disposed at the normal position of the shoulder of said seat occupant when said shoulder belt is in applied position and a lap belt coupled to said shoulder belt to form a three point safety belt system, said shoulder belt upper section having a greater non-recoverable elongation per unit length at a predetermined load than said shoulder belt lower section and than said lap belt and further characterized in that said belt upper section possesses an elongation versus load characteristic wherein said belt upper section recoverably extends with increasing load up to a predetermined value and then non-recoverably extends under little load increase for a predetermined elongation and thereafter further recoverably extends with increased load to a predetermined point, release of the stress thereafter on said belt upper section resulting in its contraction to a length greater than its original length by substantially said non-recoverable elongation.
Claim 4
Dependent Claim
181 words
A vehicle safety belt of the three point type for restraining an occupant in a seat comprising a shoulder belt including upper and lower sections joined in series at an elongation transition section which is disposed at the normal position of the shoulder of said seat occupant when said shoulder belt is in applied position and a lap belt coupled to said shoulder belt to form a three point safety belt system, said shoulder belt upper section having a greater non-recoverable elongation per unit length at a predetermined load than said shoulder belt lower section and than said lap belt and further characterized in that said belt upper section possesses an elongation versus load characteristic wherein said belt upper section recoverably extends with increasing load up to a predetermined value and then non-recoverably extends under little load increase for a predetermined elongation and thereafter further recoverably extends with increased load to a predetermined point, release of the stress thereafter on said belt upper section resulting in its contraction to a length greater than its original length by substantially said non-recoverable elongation.
Claim 5
Dependent Claim
33 words
The vehicle safety belt of claim 2 wherein said shoulder belt upper section has a greater overall elongation per unit length than said lower section and said lap belt at said predetermined load.
Claim 6
Dependent Claim
24 words
The vehicle safety belt of claim 3 wherein said shoulder belt lower section and said lap belt are formed of similar woven textile bands.
Claim 7
Dependent Claim
44 words
The vehicle safety belt of claim 3 wherein said shoulder belt upper and lower sections are formed of woven textile bands the upper section band having warp yarns with greater elongation per unit length than that of said lower section at a predetermined load.
Claim 8
Dependent Claim
37 words
The vehicle safety belt of claim 3 wherein said shoulder belt upper and lower sections are formed of woven textile bands with the warp of said upper section having a greater weave crimp than said lower section.
Claim 9
Dependent Claim
49 words
The vehicle safety belt of claim 6 wherein the warp yarns in said lower section possess at least an 80 percent recovery in length when stretched 10 percent and the warp yarns in said lower section have a recovery in length not exceeding 60 percent when stretched 10 percent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |