US3853295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically adjustable supports for vehicle seats
Assignee: Faurecia Sieges dAutomobile SAS
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Filing: 1972-10-03
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Granted: 1974-12-10
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Expires: 1992-10-03
Abstract
Abstract The support comprises a first rigid lower frame fast to the floor of the vehicle, a second rigid frame mounted in pivoting fashion around a horizontal rear axis linked to the first frame and extending along the width of the seat and a third rigid frame mounted in pivoting fashion around a second horizontal axis parallel to the first and linked to the front end of the second frame. The first locking means is easily operated by the seated person to block or unblock the second frame in one or other of a plurality of its different angular positions of pivoting with respect to the first frame around the first axis. The second locking means is easily operable by the seated person to block or unblock the third frame in one or other of a plurality of its different angular positions of pivoting with respect to the second frame around the second axis. The first and second locking means are arranged so as to be controllable alternately by a single hand lever easily accessible to the seated person, mounted in pivoting fashion around a third horizontal axis parallel to the first two axes.
Inventors
- 👤 G Christin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:31
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/16; B60N2/18; B60N2/1803; B60N2/1892; B60N2/1896
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
322 words
Vehicle seat support, comprising a first rigid lower frame fastenable to the floor of the vehicle, a second rigid frame mounted at one end thereof in pivoting fashion around a horizontal first axis linked to the first frame and extending along the width of the seat, a third rigid frame mounted in pivoting fashion around a second horizontal axis parallel to the first axis and linked to the other end of the second frame, first locking means easily operated by a person occupying the seat to block or unblock the second frame in one or another of a plurality of its different angular positions of pivoting with respect to the first frame around the first axis, second locking means easily operable by said person to block or unblock the third frame in one or another of a plurality of its different angular positions of pivoting with respect to the second frame around the second axis, a control means easily accessible to the seated person, said first and second locking means being arranged so as to Be controllable alternately by said control means, the first locking means comprising two toothed sectors centered on the first axis and adapted to coact between themselves on locking, of which one sector is fast to the first frame and of which the other is mounted in radially sliding manner upon the second frame under the control of a rotating cam fast to a camshaft centered on the second axis, the second locking means also comprising two toothed sectors centered on the second axis and adapted to coact between themselves on locking, of which one sector is fast to the third frame and of which the other is mounted in radially sliding fashion upon the second frame under the control of a rotating cam fast to a camshaft centered upon the first axis and the two cams being permanently elastically urged towards their angular position corresponding to locking.
Claim 2
Dependent Claim
322 words
Vehicle seat support, comprising a first rigid lower frame fastenable to the floor of the vehicle, a second rigid frame mounted at one end thereof in pivoting fashion around a horizontal first axis linked to the first frame and extending along the width of the seat, a third rigid frame mounted in pivoting fashion around a second horizontal axis parallel to the first axis and linked to the other end of the second frame, first locking means easily operated by a person occupying the seat to block or unblock the second frame in one or another of a plurality of its different angular positions of pivoting with respect to the first frame around the first axis, second locking means easily operable by said person to block or unblock the third frame in one or another of a plurality of its different angular positions of pivoting with respect to the second frame around the second axis, a control means easily accessible to the seated person, said first and second locking means being arranged so as to Be controllable alternately by said control means, the first locking means comprising two toothed sectors centered on the first axis and adapted to coact between themselves on locking, of which one sector is fast to the first frame and of which the other is mounted in radially sliding manner upon the second frame under the control of a rotating cam fast to a camshaft centered on the second axis, the second locking means also comprising two toothed sectors centered on the second axis and adapted to coact between themselves on locking, of which one sector is fast to the third frame and of which the other is mounted in radially sliding fashion upon the second frame under the control of a rotating cam fast to a camshaft centered upon the first axis and the two cams being permanently elastically urged towards their angular position corresponding to locking.
Claim 3
Dependent Claim
35 words
Seat support according to claim 1, wherein said control means comprises a single control element which includes a hand lever mounted in pivoting fashion around a third horizontal axis parallel to the first two axes.
Claim 4
Dependent Claim
41 words
Seat support according to claim 1, wherein the means which permanently elastically urge the two cams towards their angular position corresponding to locking, are constituted by a single helicoidal tension spring stretched between two cranks fast respectively to the said camshafts.
Claim 5
Dependent Claim
144 words
Seat support according to claim 1, wherein each cam has an edge which cooperates with an edge of an aperture fast to its respective sliding toothed sector and wherein each set of cooperating edges are designed in such a way that on one hand, at the end of the unlocking stroke, a section of a first of said edges of the set opposes a section of a second of said edges edge of the set substantially without sliding against it, these two sections being then both oriented in a substantially transverse direction, substantially perpendicular to the direction of sliding movement of the sliding of the toothed sector, and that, on the other hand, near the end of the locking stroke, two cylindrical surfaces of the edges concerned, substantially oriented in the said transverse direction, slide along one another substantially parallel to this transverse direction.
Claim 6
Dependent Claim
48 words
Seat support according to claim 4, wherein the two cylindrical surfaces belonging respectively to the cam and the aperture and cooperating amongst themselves at the end of the locking stroke are slightly eccentric with respect to one another in such a manner as to exert a wedging effect.
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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |