US3814476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle seats
Assignee: Meakers Realisations Ltd
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Filing: 1972-04-24
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Granted: 1974-06-04
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Expires: 1992-04-24
Abstract
Abstract A vehicle seat having a forwardly foldable backrest pivoted to the seat frame has a manually releasable detent on the backrest and the detent is engageable with one of a series of fixed guides according to the fore and aft adjusted position of the seat. On forward tipping of the backrest, the detent moves along the selected guide which moves the seat forward to improve access to the rear seats whilst the detent may be released so that the seat may be adjusted and the detent then engages with another guide. The guides may comprise slots in a plate; the slots may be graded in length to prevent the top of the backrest hitting the steering wheel or facia, and the slots may include a vertical portion that is engaged by the plunger when the backrest is in the normal seating position to eliminate any vertical reaction between the slots and detent.
Inventors
- 👤 E Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:06
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
141 words
A vehicle seat including: a. a seat base frame slidably supported on runner elements; b. a backrest pivoted on said frame for movement from a normal upright position to a forwardly tipped position; c. a manually releasable detent mounted on said backrest remote from the pivot axis thereof; d. a series of fixed guides fixed with respect to said runner elements arranged such that any one of said guides is selectively engaged by the detent according to thE fore and aft position of said seat base frame, said guides slanting forwardly of the normal arcuate path of movement of said detent such that when said backrest is tipped forward, said detent is moved along a selected one of said guides, the selected guide providing a reaction that causes the seat base frame to slide forwardly with respect to the runner elements.
Claim 2
Dependent Claim
141 words
A vehicle seat including: a. a seat base frame slidably supported on runner elements; b. a backrest pivoted on said frame for movement from a normal upright position to a forwardly tipped position; c. a manually releasable detent mounted on said backrest remote from the pivot axis thereof; d. a series of fixed guides fixed with respect to said runner elements arranged such that any one of said guides is selectively engaged by the detent according to thE fore and aft position of said seat base frame, said guides slanting forwardly of the normal arcuate path of movement of said detent such that when said backrest is tipped forward, said detent is moved along a selected one of said guides, the selected guide providing a reaction that causes the seat base frame to slide forwardly with respect to the runner elements.
Claim 3
Dependent Claim
68 words
A vehicle seat according to claim 1 in which said detent comprises a spring loaded plunger and said series of guides comprise a series of slots formed in a plate; said plunger being engageable in any one of said slots with which it is brought into register by fore and aft movement of said seat and being manually releasable to allow fore and aft adjustment of said seat.
Claim 4
Dependent Claim
59 words
A vehicle seat according to claim 2 in which that portion of each of said slots that is engaged by said plunger when said backrest is in a normal upright position is disposed vertically, whereby if a fore or aft force is applied to the seat base frame it does not cause a reaction that includes a vertical component.
Claim 5
Dependent Claim
68 words
The vehicle seat of claim 1 wherein said guides are graded in length and have a stop portion at the end thereof that is engaged by the detent when the backrest is tipped forward, whereby the top of the backrest is prevented from hitting any other component of the vehicle when said backrest is tipped forward whatever the fore and aft adjusted position of said seat base frame.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |