US3868068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat belt retractor
Assignee: Kangol Magnet Ltd
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Filing: 1973-02-21
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Granted: 1975-02-25
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Expires: 1993-02-21
Abstract
Abstract A seat belt retractor having an inertia sensing device which comprises a pin extending upwardly and having a weight with a central hollow in its under surface supported by the upper end of the pin, an actuator plate positioned above the weight and arranged to engage the upper surface of the weight upon tilting of the weight on the pin and thereby be moved upwardly by the tilting weight, and a pair of supported guides guiding the plate for movement in a direction co-axial with the pin, one of the guides being above and the other being below the weight so that jamming of the weight is subsequently avoided.
Inventors
- 👤 Robert Boyson Heath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:04
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/34; B60R22/36; B60R22/40; B60R2022/401
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
118 words
A seat belt retractor having an inertia sensing device which comprises a pin extending upwardly from means secured relative to a seat belt retractor frame, a weight having a central hollow in its under surface and supported by the upper end of the pin engaging the surface of the weight which defines said central hollow, an actuator plate positioned above the weight and arranged to engage the upper surface of the weight upon tilting of the weight on the pin, and a pair of spaced guide means cooperable with the actuator plate guiding the plate for movement in a direction co-axial with the pin, one of the guide means being above and the other being below the weight.
Claim 2
Dependent Claim
118 words
A seat belt retractor having an inertia sensing device which comprises a pin extending upwardly from means secured relative to a seat belt retractor frame, a weight having a central hollow in its under surface and supported by the upper end of the pin engaging the surface of the weight which defines said central hollow, an actuator plate positioned above the weight and arranged to engage the upper surface of the weight upon tilting of the weight on the pin, and a pair of spaced guide means cooperable with the actuator plate guiding the plate for movement in a direction co-axial with the pin, one of the guide means being above and the other being below the weight.
Claim 3
Dependent Claim
44 words
A seat belt retractor according to claim 1 further comprIsing a shield secured to and depending from the actuator plate and surrounding the weight, a lower guide opening in said shield slidable over said upwardly extending pin and constituting one of said guide means.
Claim 4
Dependent Claim
15 words
A seat belt retractor according to claim 2 wherein the shield is of semicircular shape.
Claim 5
Dependent Claim
17 words
A seat belt retractor according to claim 2 wherein the actuator plate is contained within a housing.
Claim 6
Dependent Claim
69 words
A seat belt retractor according to claim 1 wherein the actuator plate is contained within a housing and is provided with a central upstanding slidable actuator pin, and a guide opening in the housing is slidably engaged by an actuator pin and constitutes one of said guide means, said actuator pin operably engaging a locking pawl to effect locking of the retractor upon upward movement of the actuator plate.
Claim 7
Dependent Claim
31 words
A seat belt retractor according to claim 5 wherein said housing is of spherical or part spherical shape and said guide opening therein is in a segmental web within said housing.
Claim 8
Dependent Claim
38 words
A seat belt retractor according to claim 5 wherein said upwardly extending pin is provided with a lower threaded portion which threadably engages in an aperture in said housing to thereby form height adjustment means for the weight.
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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |