Abstract: A vehicle seat adjustment device includes adjustment mechanisms, reversible electric motors associated with the mechanisms, and a control device for the motors that are easily actuated by the user. The motors are of a variable speed type and a computation and memory device are provided in which relationships are recorded associating the various parameters that are to be adjusted, which preprogrammed relationships are determined as a function of ergonomical standards relating to the human body. Also provided are a device for detecting at each instant the value of each of said parameters, and the control device for making each detected real value of at least one of the parameters, or of a given variation therein correspond to excitation of the motor allocated to adjusting one of the other parameters, respectively to cause the value of the other parameter to move towards its value that satisfies the preprogrammed relationships or to vary in compliance with the relationships.

Abstract: The cover comprises a panel, a skirt (6) and a margin (7) that extend mutually one from the other and that are designed respectively to cover the top of the cushion, at least a major fraction of its flanks (3b), and a corresponding marginal band around its bottom (3c), at least the major fraction of the length of the free edge of the margin (7) being pleated and tensioned by being sewn (at 14) in a prefolded state to a non-stretch cord that extends without folds along said edge.

Abstract: A device for operating, in the event of a shock, to lock the adjustable seat-raising mechanism (5) interposed between the base (1, 2) and the seat proper (3, 4) of a vehicle seat, the device comprising a scissors linkage constituted by two links (6, 7) pivotally mounted to each other about an axis A, the first link (6) also being pivotally mounted about an axis B linked to the base, and the second link (7) also being pivotally mounted about an axis C located behind the first axis and linked to the seat proper, a circular sector (8) having a rough cylindrical surface (9) is centered on the axis A and is secured to the first link (6), a flyweight (10) is suspended from the axis C and includes a rough cylindrical bearing surface (11) that is eccentric and that is suitable for co-operating with a wedging effect with the cylindrical surface of the sector, and a spring (12) is interposed between the seat proper and the flyweight and urges the flyweight rearwards so long as it remains in its rest position, and forwa

Abstract: A seat padding, in particular for a motor vehicle seat backrest, includes a foam block whose support face has a recess closed by a base towards the opposite face, and filled with an insert of material permeable to air and/or moisture. The recess is arranged between two lining return grooves defining two re-entrant lines in the cover surrounding the padding and symmetrical with respect to the vertical mid-plane of the padding. The recess is separated from the grooves by two respective shoulders made of a hard foam.

Abstract: An articulation used in automobile seats, comprising: a mobile flange having a mobile flange inner toothing; a double satellite; a fixed flange having a fixed flange inner toothing for cooperating with said double satellite, the toothings of which mesh on one side with the fixed flange inner toothing of the fixed flange, and on another side with the mobile flange inner toothing of the mobile flange; an eccentric acting on the double satellite; a driving axis of the eccentric provided with at least one snug, the eccentric being made of two discs angularly mobile with respect to one another, each disc having an arched window; and a resilient element, said discs being connected to one another by said resilient element housed in said arched windows, while a central portion of each of said discs is formed with at least one circular recess, extended by a hollow housing adapted for receiving one of said snugs, and wherein each disc is noncircular and housed inside a bore of the double satellite; the two discs, when

Abstract: The vehicle seat articulation includes a fixed flange fixed to a first framework of the seat, a mobile flange rigidly connected to a second framework of the seat, a cup member enabling the mobile flange to execute an orbital movement causing an angular movement of the articulation, and a dish member maintaining the mobile flange against the fixed flange. The edge of the dish member is formed with an outer toothing that cooperates with toothings of semi-cut portions of the mobile flange. The toothings of the edge of the dish member and the toothings of the semi-cut portions have each a height equal to twice that of an off-center distance "e" provided between two shoulders of the cup member.

Abstract: The device serves to fasten the edge (7) of the cover (6) of the cushion constituting a seat back (5) to the outer flange of a channel (4) that is open towards the rear and that is provided at the edge of a plate (3) constituting framework for said cushion, the fastening device comprising a J-section member (9) attached to the edge of said cover. Said flange is firstly extended outwardly by a lateral gutter (10, 11) that is open in the opposite direction to the channel, and secondly it has a series of holes (12) punched out therein so as to form a corresponding number of tabs (13) extending parallel to the general plane of the plate, and towards the inside of the channel.

Abstract: At least one toothed roller cooperates with a deformable bar with respect to a casing which contains at least one V-shaped cam. The V-shaped cam has a central portion with opposed toothed ramps cooperating both with the toothed roller. A control cam acting on the V-shaped cam for permitting a blockage of the whole assembly is provided. The deformable bar is either made of vertical blades assembled and fixed to one another or provided with transverse bores. The bar will be deformed under action of the toothed roller upon great impact in an accident.

Abstract: The articulation comprises two flanges enclosing an inner mechanism and a closing lid. A first one of the flanges is elongated to form an elongated flange having a half circumference provided with cut-outs. An other one of the two flanges is circular. The closing lid has a periphery with curved over tabs that fit on the elongated flange. The cut-outs on the half circumference of the elongated flange enable passage of the tabs.

Abstract: The invention relates to a manually operated fixing clip for joining together removably and so that they can pivot two elements one of which carries the clip and the other a rod forming a pivot pin. The clip has a flexible lip forming, together with another lip, an elastic pinching slit for the entrance of the rod into a housing. A movable bar connected to the clip by elastic tags is placed between two lips either to move them apart sufficiently to allow the rod to leave, or to block the flexible lip in order to prevent the rod from leaving, depending on the embodiment.

Abstract: The inner memory comprises an arm with a rear nose and a front notch and is at rest in an inner lower portion of the fixed lower profile member. The lower fixed profile member has a first inner toothing for cooperating with the rear nose of the memory. A first L-shaped lever ending into a nose is articulated via a first articulation pin on an angle bracket mounted on the mobile upper profile member and has a finger below the first articulating pin. The angle bracket carries a second articulation pin for both an actuating bar and a second L-shaped lever ending into a nose for cooperating with the notch of the memory. The actuating bar is designed to bear on the latch under the effect of the finger of the first L-shaped lever when the first lever is pivoted by a control device. A further control device is provided to pivot the actuating bar and the second L-shaped lever so as to release respectively the latch and the memory simultaneously.

Abstract: A lower member is connected to a sitting portion of a vehicle seat and has side portions with cutouts for guiding pins rigidly connected to a chassis. The chassis is placed above the frame member and carries a thigh-rest cushion. An adjusting element is provided for displacement of the chassis relative to the frame member.

Abstract: The vehicle front seat comprises a seat proper (12) mounted on a base (10) by means of two oblique rods (14 and 15) and a back (13) pivotally mounted firstly about an inclination adjusting axis (6) and secondly about an axis (7) for folding the back down forwards, which axis is secured to the base. The bottom axis (4) of the front rod is connected to an axis (5) secured to the base via the short side (16) of a rigid triangle (T), a long rod (20) is pivotally mounted firstly about an axle (8) secured to the triangle and secondly about an axis (9) secured to the back, and a fourth rod (19) interconnects the two hinge axes (6 and 7) of the back.

Abstract: A movable seat for a vehicle, the seat being of the type including an unlockable fixing mechanism for connecting its seat structure to the floor of the vehicle. The mechanism includes a latch 8 having a shoulder 9 and mounted to move relative to the structure 2, the latch being suitable for penetrating in an opening 3 in the floor 1. Under the control of control mechanism, the latch 8 can take up either an unlocking position in which it is capable of penetrating into the opening 3 or of escaping therefrom, or else a locking position after it has penetrated into the opening, in which locking position the shoulder 9 is in locking engagement beneath an edge 3' of the opening 3.

Abstract: At least one rod is normally locked by toothed rollers cooperating with toothed slanted inner portions of V-shaped locking members controlled by a locking cam. The V-shaped locking members are guided within an inner casing of a polygonal shape that has a lower portion for supporting the rod. The lower portion comprises two slanted inner elements which cooperate with a fluted roller placed underneath the underside of the rod. Under an impact, the fluted roller is locked underneath the rod by moving upwardly along one of the two slanted inner elements.

Abstract: A vehicle seat back having a reentrant rear face constituted by a rigid upsidedown U-shaped frame (1), by a resilient sheet (N) tensioned inside said frame, and by padding (5) of flexible material. The seat back includes three J-shaped metal section bars respectively constituting two uprights (7) and a top horizontal cross-member, together forming an upsidedown U-shape, the bars being welded to the frame, each opening of the J-shapes being occupied by an adjacent edge of a facing (6) that covers the padding (5), a horizontal metal bar welded to the bottom of the frame, a flexible panel (10) bounded laterally by two hems (12) and along the top by a horizontal line of stitching to the facing, and two L-shaped metal rods (17) each comprising a vertical length (17.sub.1) received in a corresponding one of the two hems, which length has its top end fixed to the cross-member, and a horizontal bottom length which is fixed to the bar.

Abstract: A fixed plate supporting the vehicle seat is secured to longitudinal adjusting slides. The fixed plate supports a rotary intermediate plate via a first ball bearing and a cover rigidly connected to the fixed plate and supported at the rotary intermediate plate via a second ball bearing. The assembly is centered on the two ball bearings. Displacement of a central rod is controlled by a lever articulated on a pivot rigidly connected to the fixed plate. This lever is forked and cooperates with the head of the rod and a washer separated from the head by a spring mounted concentrically to the rod. The lever actuates, in one direction, two safety latches normally latching the rotary intermediate plate in order to release the seat for a 180.degree. rotation.

Abstract: The lower profile member of a seat slide carries a shoe made of an L-shaped member having two vertical brackets. A first bracket support a spindle on which is mounted a first latch having a lower end which normally bears on the shoe and which is returned to such a position by a coil shaped spring rigidly connected to the vertical bracket and to an upper part of the first latch. Two bearing elements carry a shaft having ends to which two sectors are fixed for supporting an abutment and a pin. The pin is adapted to act on a second latch mounted on the upper profile member for disengaging the first latch. The abutment is used for providing a limitation for a rearward stroke of the upper profile member with respect to the lower profile member.

Abstract: The lifting device for a vertically adjustable front cushion of a vehicle seat comprises a support structure with first and second vertically extending flanges on either side. The first flanges have a fixedly connected first pin and the second flanges have a fixedly connected bearing with a rotatable second pin. The support armature of the front cushion has on either side a third and a fourth pin. First connecting rods are pivotably connected with the first and third pins. Each first connecting rod has a fifth pin between the first and third pin. Second connecting rods are pivotably connected with the second and fourth pins. Curved plates with a cutout are pivotably connected to the fifth pins. A horizontal S-shaped lever is pivotably connected with its center to the support structure. A fork is connected with a lug to the rear end of the S-shaped lever. A stud is connected to the support structure. Arms are fixed to the second pins, and a transverse stay connects their free ends.

Abstract: A rigid frame for use as framework in the back of a car seat is constituted by a shell which is itself built up by assembling together two half-shells (3) of stamped sheet metal along their juxtaposed edge flanges, which flanges extend respectively around an inside perimeter and an outer perimeter of each of the half-shells. A major portion at least of the length of the juxtaposed flanges of the half-shells is rolled up to form tubes (6, 7) of closed circular section.