Abstract: Fixing device for a covering (9), especially a covering of a seat, comprising on the one hand a profiled section (1) having longitudinal slots (15), and on the other hand an edging wire (17, 17a) bent at at least two places to form fasteners (19, 19a) intended to cooperate with the slots, the fasteners (19, 19a) lying generally in a plane inclined to the axis of the edging wire (17, 17a) and being capable of deforming by twisting during their entry into a slot (15) in the profiled section, but resiliently recovering their initial shape and their inclined position after this insertion.

Abstract: Seat element for an automobile vehicle affording a particularly easy mounting and fixing of the covering. It comprises a tubular reinforcement (3) forming a closed frame supporting hooking rods (5, 7) and upholstery (9) covered with a covering (11) fixed to the hooking rods. A detachable element (22) for putting the covering under tension and maintaining this tension, is fittable on the reinforcement frame and constitutes the back or bottom of the seat element.

Abstract: The structure comprises a tubular substantially helical element (16) which forms in succession a base contour (22) and then a member (24, 26) for connection to the floor on which the seat is placed. The upper end portion (18) of the element has extending therethrough a pivot pin (20) for connection to one of the sides of a backrest (1) and is connected by gussets (38, 40) to the connection member The opposite end portion (52) of the tube is connected to the base contour frame by gussets (30, 32). Any force exerted by the backrest on the upper end portion (18) of the tube tends to unwind the substantially helical element and is thus absorbed by the latter.

Abstract: The seat structure comprises a cushion (1) and a backrest (2) interconnected by a pin in two sections, one of these sections (4) being connected to the cushion and including a semi-bearing (8). The other section (6) is connected to the backrest and to a link (10) pivotally mounted at (12) on a support side wall (14). The pivot pin (12) is located in front of the connecting pin sections (4, 6) so that the backrest which pivots about this pin is swung over toward the front of the seat structure and completely clears the rear of the seat structure, for example for the passage of a rear passenger.

Abstract: The movable element of the slide structure is formed at the lower end of a side wall (30) and is bent into an S shape so as to define inside the fixed element two parallel box units (38, 40) in which two sets of rollers are movable, these rollers rolling in their upper part on one element and in their lower part on the other element, the elements being inverted for the two sets. Each roller is moreover carried by a ball (46, 52) which projects laterally and slides on the walls of the box unit, i.e. equally on one side of the fixer element and on the other side of the movable element. A slidable bolt locks the slide structure in the desired position.

Abstract: The seat structure comprises a seat framework (2) and a backrest framework (6) which are pivotally interconnected by a pivot pin (4) which is movable in a substantially vertical curved opening (40). The framework of the backrest is extended by tabs (34) which are connected in their lower part by a link (32) to an element pivotally mounted on a pin (18) which is movable in a vertical opening (20). Owing to the fact that the pin (18) is carried by the seat, the adjustments in height and in inclination are strictly independent.

Abstract: The motor-speed reducer comprises an elongated tubular case (1) in which is disposed a motor (2) provided with two coaxial output shafts extending in opposite directions (4 and 6). Mounted on the end of each output shaft is an end portion (24) of a housing (22) of a speed reducer (18, 20). The end portion of the shaft has a worm (8, 10) which is engaged with an input worm wheel (32) of the speed reducer. The two speed reducers are preferably similar. A cassette (42) including an end-of-travel device and rotation detectors is mounted in the case (1) around the output shaft (6).

Abstract: This set includes a rear foot (4) which is an extension of the back-rest and which is connected by a rod (10) articulated to a front foot (14) articulated to the floor of the vehicle. Retractable locks (20, 32, 28) retain, on the one hand, the articulation (16) of the front foot with the rod under the seat-bottom (1), and, on the other hand, the rear foot against the seat-bottom and against the floor. When these two latter locks are opened, the seat can pivot on the articulation placed under the seat-bottom and can be folded behind the front seat. When the lock (28) of the rear foot and that (20) of the seat are disengaged, the seat-back pivots about its articulation with the seat-bottom and the latter rises so as to form a couchette.

Abstract: This device comprises a side wall (1) fixed to one of the elements and provided with a toothed ring (12) which is, at rest, engaged with a toothed ring (14) connected to a cup which is axially movable, under the action of a plate (26) carrying balls (46), along a control rod extending axially through the toothed ring (12) of the side wall. The cup (16) is extended by a gear pinion (18) engaged with the teeth of a bar (2) for connection to the second element so that the rotation of the pinion results in the rectilinear displacement of the bar (2).

Abstract: The headrest comprises on one side a sector (24) fixed to the support for mounting the headrest on the seat, and a movable sector (30) connected to the framework (12) carrying a cushion. A link (10) is pivotally mounted at its ends on pivot pins (22, 28) extending through these sectors, and a spring wire fixed to the pivot pin (22) of the fixed sector and connected to a control knob which is axially movable, slides in the slot of the pivot pin (28) of the movable sector between a position in which it is engaged in the facing notches of the two sectors for locking the headrest and a position in which it is disengaged from these notches for releasing the headrest.

Abstract: Two diametrically opposed orifices (4, 6) are provided in the framework tube of the backrest of the seat structure and receive the headrest support bar (1) which extends therethrough. A locking lug (10) projecting inside the tube extends into a notch in this bar and immobilizes it. The lug (10) is carried internally by a collar (12) which partly covers the tube (2) and extends round the upper orifice receiving the bar (1). A guide socket (24) is fitted into an opening (18) of the collar coaxially with the upper orifice (4).

Abstract: The device comprises inside a housing (14) a gear pinion (10) connected to rotate solely with a control rod (12) and engaged with a rack carried by a U-section rod (6) connected to the element to be displaced. A bolt (18), formed by two yokes which are pivotable relative to each other, comprises a set of teeth (20) engaged in the locking position with the rack and is retained in its lower part in the housing, so that the axial displacement of the control rod (12) folds it in its central part and releases the rack which can be displaced with the gear pinion. The bolt is resiliently biased to the locking position as soon as the pressure exerted by the rod (12) ceases.

Abstract: This mechanism comprises a fixed side wall 2 connected to the base of the seat and a movable side wall 1 connected to the seat back. The fixed side wall 2 comprises two centering spigots 4, 34 which are drawn from the thickness of the material from which the fixed side wall is made and which receive respectively the movable side wall and a control lever 30. Blocks 10, 12 receive a toothed pawl 14 which is capable of being locked to the set of teeth of the movable side wall. A spring 50, which tends to bias the movable side wall upwardly, maintains in position a housing 56 which laterally retains the stack of component parts.

Abstract: This head-rest comprises two semi-cases (1 and 2) which are pivoted together in their upper part (at 4). The front semi-case (1) carries a frame (12) for a padding cushion. The rear semi-case (2) is pivotally mounted in a fixed mount (14-18) rigid with two fixing tubes 20 in sleeves (56) mounted on the seat. One of the tubes (20) carries a screw-and-nut system (28-30) connected to the front lower end of the rear semi-case and controlling the adjustment in height of the bearing point of the head of the user, while the other tube (20) carries a screw-and-nut system connected to the upper part of the rear semi-case 1 for adjusting the forward and rearward setting position of the support point of the head of the user.

Abstract: The device comprises an oval cam 10 and two toothed rings 3, 4 which are coaxial with the cam and have the same diameter but different numbers of teeth, one of the rings being connected to one of the elements to be adjusted while the other ring is connected to the other element, a flexible set of teeth 16 having a number of teeth less than the number of teeth of the rings, and a flexible ring 30. The ring 30 has a smooth surface in facing relation to the cam 10 and a set of teeth 32 on the opposite side of the ring. The ring is urged by the cam 10 into engagement with the flexible set of teeth 16 and the latter is urged toward the teeth of the rings 3, 4.

Abstract: This reinforcement has at least one elongated slit 12 formed in the wall of the tube 1 located inside the reinforcement and therefore little exposed to impacts. The slit 12 is formed by a punching operation by urging back the material toward the interior of the tube and rolling it in the form of two curls in opposite directions. Upon impact, the reinforcement is progressively deformed in the region of the slit and thus absorbs the energy of the impact.

Abstract: In order to soften or stiffen the support offered by an elastic sheet, and in particular a vehicle seat back, the device comprises a flat spring (1) which is at each of its ends connected to the sheet (38), and fixed to a case (2, 3) containing an inclined disc (10, 12). Two discs are fixed to a control rod (24) which is mounted in the frame (36) of the seat and, when this rod is rotated, they cause the cases to be pivoted symmetrically, so that the spring is extended and stiffens the sheet or is shortened and renders the seat more soft.

Abstract: In a slide structure employing balls comprising an outer element formed by a U-section element 1 provided with flanges 2, the inner element 8 is constituted by a tube which is deformed in such manner as to include two lateral wings 10 each one of which is between two concave grooves for receiving the balls 16. Beyond the portion of the tube deformed in this way, the tube is bent and devoid of flanges so as to enable it to extend through the opening 3 of the U-section element 1 before resuming its initial section. The tube terminates in fixing tabs. Sheared and deformed portions which are evenly spaced apart along a central longitudinally extending boss 18 of the inner element constitute a rack for driving or locking the inner element relative to the outer element.

Abstract: The steering column is mounted to be pivotable about the same axis as the steering shaft which extends through the column. The column carries a support plate for associated controls which is locked on the casing tube of the column which is pivotally mounted on a bracket for fixing the whole of the column to the body of the vehicle. An unlocking lever, pivotally mounted in the vicinity of the steering column, is extended by a curved rod which terminates in the vicinity of the steering wheel. A first travel of the lever puts an arm in contact with a pivotal cam, then a second travel of the lever pivots the cam and unlocks the column which can then be pivoted about its pivotal mounting on the bracket and adjusted to the desired height.

Abstract: An adjusting system comprising two pivot device 6 and 7 which are symmetrical and have extending therethrough means defining a stepped central aperture whose dimension increases from the interior of the seat structure to the exterior of the latter. A rod 10 which is extended at each end by a square-sectioned bar 23 is slidably mounted in the apertures of the two pivot devices and is fitted at one end in a sleeve rigid with a control element 30. A locking hairpin element locks the control member to the rod but may be withdrawn at any time so as to permit reversing the direction in which the seat structure is positioned.