Patent US2827714A successfully refreshed from Google Patents.
Patent US3774964A successfully refreshed from Google Patents.
US3774964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanisms for reclinable seats
Assignee: TURNER H WILLENHALL Ltd GB
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Filing: 1972-01-04
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Granted: 1973-11-27
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Expires: 1992-01-04
Abstract
Abstract The invention provides a seat angle adjusting mechanism comprising a strut to extend between the two pivoted parts of the seat, the strut having teeth and being engaged with a housing, both the housing and the strut being pivotally mounted, one on each part of the seat, the strut also having a cam which can be turned about the strut axis to displace the strut laterally, about its pivot, and relative to the housing, to take the teeth into and out of mesh.
Inventors
- 👤 H Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:33
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/23; B60N2/233
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
147 words
An adjustment mechanism for a reclinable seat, comprising a bar provided with tooth formations along a portion of its length, and a housing through which the bar extends, having tooth formations to engage those on the bar, one of the bar and housing being pivotally mounted on a seat and the other being pivotally mounted on a seat back, wherein the improvement comprises a quick-acting releasing and locking device including a cam which extends along and is mounted on the bar, and means for rotating the cam about an axis extending longitudinally of the bar, the housing having portions which engage the cam in one position thereof to hold the tooth formations of the bar and housing in mesh, and which engage the cam in another position thereof to shift the bar laterally of the housing and thereby disengage the tooth formations of the bar and housing.
Claim 2
Dependent Claim
147 words
An adjustment mechanism for a reclinable seat, comprising a bar provided with tooth formations along a portion of its length, and a housing through which the bar extends, having tooth formations to engage those on the bar, one of the bar and housing being pivotally mounted on a seat and the other being pivotally mounted on a seat back, wherein the improvement comprises a quick-acting releasing and locking device including a cam which extends along and is mounted on the bar, and means for rotating the cam about an axis extending longitudinally of the bar, the housing having portions which engage the cam in one position thereof to hold the tooth formations of the bar and housing in mesh, and which engage the cam in another position thereof to shift the bar laterally of the housing and thereby disengage the tooth formations of the bar and housing.
Claim 3
Dependent Claim
19 words
Mechanism as claimed in claim 1, wherein the cam is fast with the bar and turns with the bar.
Claim 4
Dependent Claim
21 words
Mechanism as claimed in claim 1, wherein the cam is pivotally mounted on the bar and turns relative to the bar.
Claim 5
Dependent Claim
27 words
Mechanism as claimed in claim 1, wherein the cam is integral with a shield which extends beyond the bar and carries a handle for turning the cam.
Claim 6
Dependent Claim
25 words
Mechanism as claimed in claim 1, wherein the bar is substantially L-shaped and one limb of the bar forms a pivotal mounting for the bar.
Claim 7
Dependent Claim
23 words
Mechanism as claimed in claim 1, wherein a torsion spring is provided for turning the cam towards the engaged position of the teeth.
Claim 8
Dependent Claim
53 words
A reclinable seat comprising seat-frame and back-rest frame hinged together about a fixed axis and provided with a mechanism as claimed in claim 1, extending as the third side of a triangle of which the seat-frame and the back-rest frame or extension of either or both of them form the other two sides.
References Cited (Backward Citations)
US535999A
Cited
US1871184A
Cited
US2845994A
Cited
DE1248251B
Cited
US3226158A
Cited
FR1498802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |