US3731342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulation for adjustment of inclination of a seat back rest especially for motor vehicle seats
Assignee: Cousin Freres SA
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Filing: 1971-08-06
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Granted: 1973-05-08
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Expires: 1991-08-06
Abstract
Abstract Linkage for adjusting a seat back rest especially for motor vehicles characterized thereby that two bearing brackets or plates are provided on a bearing sleeve and have holes therewith in circular rows upon equal diameters, whereby the rows of holes relative to each other provide a difference of at least one hole and whereby one of the bearing brackets or plates carries one of the bolts axially slidably guiding a disc or plate and whereby the bolts are covered by a rotatable housing which operates together with a loose pivotal disc and running-off surface with a lateral shifting. A return guidance of the bolts is effected by the running-off surfaces and loose pivotal disc and effective from each individual bolt having elastic elements provided therewith in those holes engaged by the two bearing brackets or plates which are covered in sufficient measure so that the heads of the bolts can be received thereby.
Inventors
- 👤 M Cousin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:42
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/2218; B60N2/04; B60N2/06; B60N2/08; B60N2/0806
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
139 words
Articulated linkage for adjusting a seat back rest especially for motor vehicles comprising: two bearing brackets provided on a bearing sleeve and having holes therewith in circular rows upon equal diameters, the rows of holes relative to each other providing a difference therebetween of at least one hole, bolt means carried by the bearing brackets, a disc axially slidable relative to said bolts, a rotatable housing that covers the bolts, loose pivotal disc means and running-off surfaces operable together with said rotatable housing with a lateral shifting thereof, said running-off surfaces and loose pivotal disc means being provided to effect a return guidance of said bolts, and elastic elements for each individual bolt provided therewith in those holes engaged by the two bearing brackets covered in sufficient measure so that the heads of the bolts can be received thereby.
Claim 2
Dependent Claim
139 words
Articulated linkage for adjusting a seat back rest especially for motor vehicles comprising: two bearing brackets provided on a bearing sleeve and having holes therewith in circular rows upon equal diameters, the rows of holes relative to each other providing a difference therebetween of at least one hole, bolt means carried by the bearing brackets, a disc axially slidable relative to said bolts, a rotatable housing that covers the bolts, loose pivotal disc means and running-off surfaces operable together with said rotatable housing with a lateral shifting thereof, said running-off surfaces and loose pivotal disc means being provided to effect a return guidance of said bolts, and elastic elements for each individual bolt provided therewith in those holes engaged by the two bearing brackets covered in sufficient measure so that the heads of the bolts can be received thereby.
Claim 3
Dependent Claim
63 words
Articulated linkage according to claim 1, wherein one bearing bracket provides a larger number of holes than would correspond to the number of holes in the other bearing bracket, a disc secured to the bearing bracket having the larger number of holes and the axially slidable shiftable bolts including one complementary to holes of the bearing bracket with the smaller number of holes.
Claim 4
Dependent Claim
50 words
Articulated linkage according to claim 2, in which said disc and a cover are unified, spring means having a supporting surface formed by said cover, said springs pressing upon bolt means axially shiftable and sliding variously in the corresponding holes of the bearing bracket having the smaller number of holes.
Claim 5
Dependent Claim
157 words
Articulated linkage according to claim 3, in which the bearing brackets are secured side to side upon the bearing sleeve in which a pulling axle is slidably guided and has one end thereof carrying said disc surrounding roTatable housing, and the other end of which forms a bearing and an abutment for the swinging disc representing linkage half sphere of which the position can change, tooth means provided on the peripheral edge thereof and provided in an equal number as the number of holes in the bearing bracket having the larger number of holes and from which certain tooth means always engage in those corresponding holes of the bearing bracket having the larger number of holes which lie diametrically opposite thereto and which correspond with the holes of the other bearing bracket having the smaller number of holes correspondingly for receiving the heads thereof and in a sufficient manner at least partially covering slidably guided bolts therewith.
Claim 6
Dependent Claim
58 words
Articulated linkage according to claim 4, in which the rotatable housing has recesses in equal angular spacing in a middle planar part thereof and which usually effect an opposing action and/or a transverse shifting being effected upon running surfaces located across therefrom which are offset from the disc as cut out and projecting toward the bearing bracket direction.
Claim 7
Dependent Claim
67 words
Articulated linkage according to claim 5, in which the rotatable housing forms a ring chamber with the disc and cover, the ring chamber having a spiral spring therein of which one end part is secured to the disc and the other end part of the spiral spring is secured to said housing, and a fastening finger for actuation provided on said housing in an essentially radial direction.
Claim 8
Dependent Claim
43 words
Articulated linkage according to claim 6, in which a rigid abutment is provided between one bearing bracket and the rotatable housing, said abutment providing limitation of the turning range of the rotatable housing corresponding to the effective angular spacing of the running surface.
Claim 9
Dependent Claim
53 words
Articulated linkage according to claim 7, in which the axially slidable shiftable bolt means each have a head portion spherically blunted of which the middle diameter substantially equals the diameter of a transitional range between cylindrical and spherically blunted portion thereof which together form each hole of a bearing bracket in complementary relationship.
Claim 10
Dependent Claim
78 words
Articulated linkage according to claim 1, in which the disc carries a cover which is secured in an angular position and according to an axial position whereby the disc guides the sliding shiftable bolts which have cutouts upon the periphery of the swinging disc engaging head shoulder means whereby the swinging disc is arranged internally in a chamber having boundaries defined by way of the disc and the cover, and a driving housing means connected therewith internally thereof.
Claim 11
Dependent Claim
90 words
Articulated linkage according to claim 9, in which a rotatable housing is the driving element means which provides a pipe-formed axial extension providing a bearing part of four-cornered cross section behind a cylindrical bearing portion centered in the bearing sleeve, and cam means fitted upon the four-cornered cross section with several equal angled projections provided thereby which operate together with recess means complementary as formed by inclined surfaces upon the swinging disc which has cuts in the periphery thereof providing space for receiving the head shoulders of the bolt means.
Claim 12
Dependent Claim
68 words
Articulated linkage according to claim 10, in which the swinging disc is received in the ring chamber having boundary thereof defined internally by the disc and cover, said cover being secured to said disc and being surrounded by a housing which forms internally a rigid protrusion that extends through an arc-formed window in the cover and accordingly determines the angular range of the part turning of said housing.
Claim 13
Dependent Claim
45 words
Articulated linkage according to claim 11, in which the swinging disc has depressions arranged in equal angular spacing and fitting projections of cam means within the ring range which surround a middle opening that permits projection therethrough by a six-edged bearing part of said housing.
Claim 14
Dependent Claim
76 words
Articulated linkage according to claim 12, in which the cover provides a peripheral edge which surrounds the disc upon which the cover on the one hand is secured in its angular position by means of a recess of the disc engaging a projection and on the other hand is secured in axial direction by means of an elastic ring which is so embodied that certain segments thereof engage through the peripheral edge therebeyond below the disc.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |