US4365827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive wire for passive restraint systems
Assignee: Individual
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Filing: 1981-03-13
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Granted: 1982-12-28
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Expires: 2001-03-13
Abstract
Abstract An improved drive wire for a passive vehicle occupant restraint belt system comprises a length of racked wire composed of a stranded wire core and a helically wound tooth wire, and a length of transfer wire composed of a stranded wire core and a covering of durable polymeric material joined to each other at a butt splice connection that includes a pressed-on metal collar adjacent to the end of each stranded wire core, a band of polymeric material on each core adjacent the collar and a pressed-on coupling sleeve surrounding and joining the collars and embracing the polymeric bands for relief of concentrated stresses adjacent the collars.
Inventors
- 👤 Juichiro Takada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:59
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/04; B60R22/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T403/00; Y10T403/49; Y10T403/4983
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
177 words
In a passive vehicle occupant restraint belt system having a belt transfer member engaging a portion of a belt and driven by a drive wire along a guide rail between release and restraint locations, the improvement in the drive wire comprising (a) a length of racked wire adapted to be driven by a drive device and including a stranded wire core and a helically wound tooth wire; (b) a length of transfer wire having a stranded wire core and a covering of a durable polymeric material, the transfer wire being coupled to the belt transfer member and being no shorter than the distance along the guide rail between the release and restraint positions, and (c) a butt splice connection between the racked wire and the transfer wire that includes a pressed-on metal collar adjacent the end of each stranded wire core, a band of polymeric material on each core adjacent the collar and a pressed-on coupling sleeve surrounding and joining the collars and also embracing the polymeric material bands, whereby concentrated stresses adjacent the collars are minimized.
Claim 2
Dependent Claim
177 words
In a passive vehicle occupant restraint belt system having a belt transfer member engaging a portion of a belt and driven by a drive wire along a guide rail between release and restraint locations, the improvement in the drive wire comprising (a) a length of racked wire adapted to be driven by a drive device and including a stranded wire core and a helically wound tooth wire; (b) a length of transfer wire having a stranded wire core and a covering of a durable polymeric material, the transfer wire being coupled to the belt transfer member and being no shorter than the distance along the guide rail between the release and restraint positions, and (c) a butt splice connection between the racked wire and the transfer wire that includes a pressed-on metal collar adjacent the end of each stranded wire core, a band of polymeric material on each core adjacent the collar and a pressed-on coupling sleeve surrounding and joining the collars and also embracing the polymeric material bands, whereby concentrated stresses adjacent the collars are minimized.
Claim 3
Dependent Claim
24 words
The improvement in a drive wire according to claim 1 wherein one of the metal collars is an integral part of the coupling sleeve.
Claim 4
Dependent Claim
28 words
The improvement in a drive wire according to claim 1 or claim 2 wherein the covering of the transfer wire is a polyamide having a lubricant incorporated therein.
Claim 5
Dependent Claim
24 words
The improvement in a drive wire according to claim 3 wherein the lubricant is a member of the group consisting of silicon and graphite.
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) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |