Abstract: A safety device for retaining the lower portion of a body of an occupier of a seat of a car having a padded seat portion and a seat back portion which comprises a rigid belt having a generally "C"-shape and provided with connection members which can be fastened to the padded seat supporting structure. At least a central band portion of the belt is positioned in front of the padding of the padded seat portion, wherein the central band has at least one portion lowered relative to the upper edge of the padded seat portion.

Abstract: A walk-in device for use in a seat slide device is disclosed. The seat slide device includes a stationary rail, a movable rail slidably engaged with the stationary rail, and a locking mechanism for locking and unlocking the movable rail relative to the stationary rail when a first member is turned in first and second directions respectively.

Abstract: A vehicle seat slide mechanism comprises a fixed slide and a movable slide allowing fore-and-aft adjustment of the vehicle seat position. The mechanism includes a memory mounted on the fixed slide which enables the seat to be returned to its original position. Preferably this is actuated by tilting the squab of the seat and is particularly suitable for two-door cars wherein the front seat has to be slid forwards to allow access to the rear.

Abstract: A car seat comprising a seat slide mechanism, a seat reclining mechanism and, walk-in system. The walk-in system is provided with a wire to unlock the seat slide means and the wire is arranged to loosen when the seat-back is swung backward by the reclining mechanism.

Abstract: The vertically adjustable seat of a motor vehicle is mounted on two spaced-apart parallel rails each of which is reciprocable along a discrete track having an inverted C-shaped cross-sectional outline. Each rail has two spaced-apart parallel vertical sidewalls which are held apart and are connected to each other by several laminae and bolts serving to urge the edge faces of the laminae against the inner sides of the sidewalls. The marginal portions of the laminae have projections which are received in complementary sockets of the sidewalls. The sidewalls are extrusions of light metal, and the laminae are made of the same material. The rear end portion of one of the rails has a coupling for one end portion of a safety belt, and the configurations of the lower portions of the sidewalls and the adjacent portions of the track are such that the rails are confined to reciprocatory movement longitudinally of the respective tracks.

Abstract: A locking bolt (14) is slidably mounted in the external element (1) of the slide. It has side teeth (16) cooperating with holes in this external element and, at its end removed from these teeth, a hole (28) for receiving an actuating pin (32) which also passes through the internal element (2) of the slide. The cross-section of the pin (32) complements the hole of the bolt such that rotation of the pin about itself causes locking. The pin is movable axially and may be disengaged from the bolt so as to allow momentary relative axial displacement of the internal element and return into the previous position indicated by the bolt.

Abstract: An automotive seat with a walk-in device, which permits the forward movement of the seat by inclining the seat back forwardly for a walk-in purpose. The walk-in device in the present invention comprises a rotatable lever plate, an actuator pin fixed on the lever plate, and a crank portion formed in a lock lever associated with a locking mechanism. The actuator pin is in a contact with the crank portion, and as such, when the seat back is forwardly inclined, the rotatable lever plate is caused to rotate, whereby the crank portion is rotated via the actuator pin so as to actuate the locking mechanism to release the locked state of the seat, allowing the seat to be forwardly moved for the walk-in purpose.

Abstract: The present invention provides an apparatus and method of utilization thereof of an anti-ratchet vehicle seat adjuster slide. A preferred embodiment provides an adjuster slide having an upper channel connected with the seat slidably mounted on a lower channel connected with the vehicle. The adjuster slide also has a latch pivotally connected with the upper channel having a range of pivotal movement independent of a lift bar which is also pivotally connected with the upper channel. To allow adjustment of the seat the lift bar is controlled by the operator and pulled upwards causing the latch to pivot upwards also and release from the lower channel. The latch also is provided with a tab having a curvilinear surface of engagement with the notches of the lower channel.

Abstract: A vehicle seat track assembly for allowing a seat to be selectively moved rearwardly and forwardly. The seat track assembly allows the vehicle seat to be secured at a desired selected position. The seat track assembly further allows the seat to be moved forwardly to provide access to the area behind the seat. When the seat is moved forwardly, the seat track assembly has a memory that will remain in place and stop the seat upon its return to the selected position.

Abstract: A front seat (1) for a motor vehicle with only two side doors includes a frame and a device for connecting the frame to the floor (15) of the motor vehicle which enable the seat to be moved between a normal operative position and a forward inoperative position in which access to the rear seats of the motor vehicle is facilitated, the connection device comprising at least one pin-slot coupling (23, 25) operatively interposed between the seat frame and the floor (15) of the motor vehicle and also including guides (5) allowing the adjustment of the operative position of the seat longitudinally of the motor vehicle. The seat further includes an auxiliary support structure (7) which supports the seat frame. The guides are operatively interposed between the seat frame and the auxiliary support structure (7). The pin-slot coupling (23, 25) is operatively interposed between the auxiliary support structure (7) and the floor (15) of the motor vehicle.

Abstract: An automotive seat with a walk-in device, in which a rotatable lever plate of the walk-in device and a link member are arranged at one of a pair of slide rails which are provided under the seat, and a connecting wire of the walk-in device is extended between the rotatable lever plate and link member. Thus, all required elements of the walk-in device are disposed along such one of two slide rails, and as such, the connecting wire is prevented from contact with the bottom of the seat and can be attached directly to the walk-in device without need to extend it transversely of the seat.

Abstract: The present invention provides a conventional fore and aft vehicle seat adjuster which can be quickly converted to an easy entry seat adjuster which a memory. The present invention is highly useful when utilized for the front seat in two door vehicles wherein the bending of the front seat back forward allows the front seat to move to its most foward position. After utilization of the easy entry feature, pushing back on the front seat will automatically return the front seat in its prior preselected position without further adjustment by the front seat occupant.

Abstract: A front seat assembly for motor vehicles is supported at the front by a first support which includes two lower guides in which support members are mounted for longitudinal movement. The latter are, in turn, engaged at their upper ends for movement relative to upper guides fixed to the front part of the seat cushion. The support members can be locked in the lower guides in a rearwardmost position while the position with respect to the upper guides can be chosen from a plurality of fixed adjustment positions. The rear part of the seat is supported by two pivotable arms which, when the seat is moved towards a forwardmost position, cause the cushion to be raised gradually, so that the visual point is substantially maintained. To facilitate access to the rear seats, the backrest can be tipped forwards by disengagement of a retaining member which hold the backrest in a fixed position relative to the cushion and of the retaining member which hold the support members within the lower guide.

Abstract: An easy entry seat adjuster mechanism for a seat assembly having a seat cushion unit and a pivotal back rest and which functions to allow the seat cushion unit to be adjustably positioned along a track and which functions to allow the seat to be shifted forwardly in response to tilting movement of the seat back to permit easy entry into the rear seat and then to automatically return the seat to its previously adjusted position upon return of the back rest to its upright position and shifting the seat rearwardly. The seat adjuster mechanism has a memory means, including a stationary rack and toothed gear operatively associated with a lock lever on the seat adjuster for effecting the automatic repositioning of the seat to its previously adjusted position.

Abstract: In a motor-driven seat, the seat cushion and the seat back are driven by a slider motor and a knuckle motor in response to operation of respective switches. The motor-driven seat is further provided with an additional driving circuit which is adapted to receive power from a power source other than the battery mounted on the vehicle body and drives the slider motor and the knuckle motor so that the seat back is inclined rearward in response to forward or rearward sliding movement of the seat.

Abstract: A walk-in mechanism for an automotive seat is disclosed which comprises a base plate having first and second portions which are pivotally connected to a seatback and a seat cushion respectively through a first pivot shaft of a reclining device and a second pivot shaft, so that the base plate is pivotal about the second pivot shaft together with the seatback; a latch for latching the base plate to the seat cushion; a first link member secured to the seatback to move therewith; a second link member pivotally connected to the base plate, the second link member having axially opposed first and second end portions, the first end portion being connected to the first link member through a first lost-motion device; a third link member pivotally connected to the base plate, the third link member having first and second wing portions, the first wing portion being connected to the second end portion of the second link member through a second lost-motion device; and a transmission wire having one end fixed to the latch p

Abstract: A car seat having a forward and rearward sliding mechanism for sliding a seat cushion in a horizontal direction, a reclining mechanism for inclining a seat back in a forward or rearward direction and a walk-in mechanism comprising means to associate the forward and rearward sliding mechanism with the reclining mechanism so that when the reclining mechanism inclines the seat back in the forward direction, the seat cushion is urged to move in a forward direction.

Abstract: A vehicle seat, especially for attendants in an aircraft is constructed as a double seat. The seat is equipped with seat cushions on opposite sides of a frame made of two posts interconnected by a cross-member. The seats are preferably hinged to opposite frame sides so that one or the other or both seats can be used.

Abstract: A tiltable and height- adjustable seat for a vehicle with three doors, said seat comprising two front racks, two rear racks, two front pinions cooperating with the front racks, two rear pinions cooperating with the rear racks, two cross-rods respectively fastening the two front pinions and the two rear pinions and supporting the sitting portion and an actuating knob connected angularly to one at least of the pairs of pinions. The tilting axle of the seat is rigidly connected to the base and to the backrest, the front racks are mounted pivotably around an axle joined rigidly to the base, the rear axles are fast to the backrest and the axle of the two front pinions is joined to the axle of the two rear pinions by a rigid cross-piece.

Abstract: Herein disclosed is a seat sliding device which generally comprises a latch mechanism for latching a movable rail to a stationary and a walk-in mechanism for moving the seat forward when a seatback of the seat is inclined forward. The walk-in mechanism comprises a transmission member which cancels the latched engagement between the movable and stationary rails when turned in a given direction about an operation shaft of the latch mechanism, a memory lever pivotally supported by the transmission member and actable as a prop for keeping the transmission member in the latched engagment cancelling condition and a stepped elongate member fixed to the stationary rail and engageable with the memory lever in a manner to cancel the function of the prop when the seat is slided to a given position with the seatback inclined forward.

Abstract: A sliding rail guide arrangement having a locking device for a vehicle seat comprises an outer rail of C-shaped configuration and an inner rail guided displaceably in the outer rail. The locking device comprises a locking lever which is mounted on a mounting member carried on the outside of the outer rail, and the lever carries a locking portion to lock the inner rail with respect to the outer rail. The locking portion, in the locking position, extends through an access aperture in the outer rail and engages into a respective selected locking opening in the inner rail.

Abstract: A swivel-chair (10) has a frame (15) on which a seat (24) is movably mounted. A back (22) is connected with the seat (24), and this back (22) may be turned around a connecting point (19) at the frame (15). At this connecting point (19) a rotary spring (40) is provided, which tends to turn the back (22) into its working position, and the seat (24) is supported and guided at a seat-guide (31) at its forward area, that is where the thighs of the user are resting. This seat-guide (31) is preferably made such, that it will keep the inclination of the seat (24) on movement thereof, thus the so-called seat-slope, at an ergonomically advantageous value. A movement into the rest position goes against the rotary spring (40) and if required also the seat-guide (31) Optionally a blocking-device (45) for the seat (24) may also be provided in order to be able to block the seat (24) in any desired position in accordance with the wishes of the user.

Abstract: An actuation button retaining frame member for a vehicle seat adjuster or the like providing quick action installation and positive retention of the button in a panel elongated opening. The frame member is dimensioned for slidable reception on a box-shaped stem portion integral with the button. The frame member has the interior surface of its side elements formed with raised lugs adapted to be slidably received in edge positioning slots of the stem portion. Arcuate shaped runners are formed on the side elements facing the fixed end of the button stem portion. The slots readily position the frame member arcuate-shaped runners in juxtaposed relation to the panel's inner surface providing smooth reciprocal travel of the button along the opening.

Abstract: This invention relates to a seat assembly especially suitable for use on a front seat of a two door vehicle and particularly relates to a comfort adjustment manual override seat track assembly for permitting, seat position adjustment, and the seat to slide forward to permit access to behind the seat and return to its initial position.

Abstract: The present invention provides an easy entry seat adjuster along with a memory. The present invention is highly useful when utilized for the front seat in a two row seat two door vehicle wherein the bending of the front seat back forward allows the front seat to move to its most forward position. After utilization of the easy entry feature, pushing back on the front seat will automatically return the front seat in its preselected position without further adjustment by the front seat occupant.

Abstract: In combination with a seat track structure including a movable track slidable on a stationary track, a handle shaft rotatably supported on the movable track, a lock plate secured to the stationary track, and a detent lever secured to the hand shaft and being loaded to engage the lock plate at a selected position, a walk-in mechanism includes a release lever rotatable on the handle shaft and being provided with an upward projection and a lateral projection, and a resilient plate having one end secured on the movable track, an intermediate portion provided with a downward projection and a flexible end portion formed with an opening to receive the upward projection of the release lever.

Abstract: A seat assembly especially suitable for use as a front seat of a two door vehicle. The seat assembly is slidable on tracks for permitting ease of access to behind the seat, and is provided with a front and rear end comprising three track assemblies, a fixed lower track assembly, a middle or second track assembly releaseably secured to the lower track assembly, and when released, being slideable to the front end with respect to the lower track assembly, and an upper or third track assembly releaseably secured to the middle track assembly, and when released, being slideable to the front end with respect to the middle track assembly. The seat assembly includes a "memory" for returning the slideable set assembly to its initial position.

Abstract: A seat adjuster mounts a vehicle seat for back and forth adjustment between different functional positions and is adapted to lock the seat in each selected position. When the seat back is tilted forwardly, the seat adjuster releases the seat to enable the seat to move fully forwardly to an entry position. A mechanical memory is incorporated in the seat adjuster and, when the seat is shifted rearwardly following forward movement to its entry position, the mechanical memory automatically stops the seat in its last-established functional position.

Abstract: A seat adjuster control mechanism for an easy entry vehicle seat track having a one position memory. An overcenter cam member is rotatably mounted on a pivotal latch plate pivoted on an upper track member. The latch plate has a detent normally biased into locking engagement with a lower track member by first spring means. Upon the seat being tilted forward a pawl, which pivots about a common axis relative to the latch plate, is rotated against the bias of second spring means and engages the latch for rotation in unison therewith. This results in pawl engaging means on the cam member releasing the pawl causing the cam member pivoted from a first pawl engaging overcenter position to a second overcenter position against the bias of third spring means. In its second overcenter position the cam member maintains the locking detent clear of its locked position enabling the seat assembly to be moved to its forwardmost easy entry and exit position.

Abstract: Passenger car individual front passenger seat back actuated seat latch release means comprising pivotally connected seat and seat back bracket means, longitudinal track seat adjustment means including manual latch release means, pivoted lever means on the seat bracket means, striker means fixed on the seat back bracket means responsive to forward tilting for actuating the lever means, linkage means from the lever means for actuating said manual latch release means, the striker means including a surface for retaining the lever means in latch release mode during manual return of the seat to rearward position and seat back to upright position.

Abstract: An easy entry seat adjuster includes upper and lower track members which are slidable relative to each other. A latch carrier is slidably mounted on both track members and mounts a latch member having latch arms engageable within an opening of the upper track member and any one of a series of openings in the lower track member. Manual movement of the latch member out of engagement with an opening of the lower track member permits horizontal adjustment of the seat as the latch member carrier and upper track member move relative to the lower track member. Movement of the latch member out of engagement with the opening of the upper track member by a seat back actuated cam on the upper track member permits displacement of the upper track member between a horizontally adjusted position and easy entry position.

Abstract: An apparatus for positioning the backrest of a vehicle seat to facilitate an occupant's entry and exit from the vehicle. The apparatus includes a seat frame mounted on the floor of a vehicle and a backrest frame pivotally connected to the seat frame. A pawl member releasably engages the seat frame from teeth on the backrest frame and is controlled by an operating lever to adjust the pivotable position of the backrest. A support member slidably positions the seat frame along the vehicle and includes a pair of spaced lower rails and a pair of complimentary upper rails slidably mounted on the lower rails. A locking device mounted on the upper rail prevents sliding movement between the upper and lower rails. A cable means extending between the backrest and the locking device releases the locking device to enable sliding movement between the upper and lower rails when the backrest is pivoted beyond a predetermined position.

Abstract: A reclinable back rocking chair includes a subframe mounted for longitudinal fore and aft movement on a stationary base and has anti-rocking means actuated when a leg rest is elevated and when the subframe is not in its forwardmost position as well as a novel latch mechanism for automatically latching the subframe in its forwardmost and rearmost positions and manual means for unlatching the latch mechanism to permit fore and aft movement.

Abstract: An easy entry vehicle seat latch mechanism compatible with conventional inertia latch, recliner, and horizontal seat adjusting systems. A dual function easy entry latch mechanism is provided which initially unlatches a seat horizontal adjuster and subsequently resiliently holds the seat back in a forwardly tilted easy entry position. The mechanism allows the front seat to be readily traversed fore and aft either by a person standing outside the vehicle or by a rear seat passenger exiting the vehicle when the front seat is unoccupied.

Abstract: A latching arrangement for seat slide structures includes a latch member which is fulcrumed on one track member of the slide structure and includes a latching portion which extends inwardly of the one track member and has latched teeth, engageable within openings in the other track member and in the one track. The latch member is biased to latched position by a hairpin type spring.

Abstract: An easy entry seat adjuster includes a latch member which is resiliently biased to a latched position and can be manually moved to unlatched position to adjust the seat. When the seat moves to the easy entry position, tilting movement of the seat back moves a blocking member into engagement with the latch member to move the latch member to unlatched position and block return thereof to unlatched position. Movement of the seat from the easy entry position rearwardly engages the latch member with an abutment of the lower track member to release the latch member from the blocking member and permit the blocking member to return to unblocking position and the latch member to latched position.

Abstract: A seat adjustment device for a vehicle seat which includes two lock mechanisms respectively provided in a pair of rail assemblies. One of the lock mechanisms may be a fine-pitched lock mechanism provided in either of the rail assemblies, or both of the lock mechanisms may each be fine-pitched lock mechanism respectively mounted in both of the rail assemblies. The fine-pitched lock mechanism comprises a lock plate with a tooth-formed portion provided in one of the rail assemblies and a link provided in the other rail assembly and having a tooth body to be intermeshed with the tooth-formed portion of the lock plate by means of a toggle action.

Abstract: An integral track vehicle seat structure has a pair of laterally spaced side rails providing seat cushion mounting means, including a seat spring and seat back adjustment mechanism mounted to the side rails, a plurality of floor anchors for securing the side rails to the vehicle frame and an integral track formed integrally of the side rails and floor anchors including relatively adjustable and position lockable upper and lower track members each having an opened box section like configuration which slidably fit in internested, telescoping relation to secure the vehicle seat at all times to the vehicle floor while providing for forward and backward seat adjustment.

Abstract: A bearing assembly for upper and lower track members of a seat slide includes a flexible elongate member which is bowed by engagement with a longitudinal rib of the upper track member to engage roller end portions of the elongate member with flanges of the lower track member when the seat is unoccupied and engage bearing means between flanges of the track members to locate the components of the seat slide in rattle free relationship. When the seat is occupied, the upper track member is shifted downwardly to engage the roller end portions of the elongate member with the upper track member and provide rollers slidably supporting the upper track member on the lower track member.

Abstract: A vehicle seat track assembly comprising a lower frame member secured to the vehicle floor, an upper frame member secured to the seat and slidably supported on the lower frame member for relative movement fore and aft of the vehicle and a seat position control member supported on the frame members for movement in transverse directions among three positions: a locked position, in which the seat position control member is secured to both of the frame members to prevent relative movement thereof, an indexing position, in which the seat position control member is locked to the upper frame member but movable relative to the lower frame member so that the seat can be adjusted to discrete positions according to the desire of the user, and a slide position, in which the seat position control member is locked to the lower frame member but not to the upper frame member so that the seat can be slid forwardly a specified distance to facilitate passenger access to the back seat and then rearwardly to the previously adjust

Abstract: A seat structure has an improved means for memorizing the seat position which automatically operates a latching means provided on a seat support structure in response to the tilting movement of the seat back.The seat position memorizing means includes a rotatable plate and means for latching the rotatable plate. The rotatable plate and the latching means are mounted on a base plate of a seat back tilting means, so as to provide a more reliable operation and easy to assemble structure.

Abstract: A lift chair for a disabled person has a seat comprising a stationary horizontal rear seat portion and a rotatable front seat portion to support a person in seated position. The rotatable front seat portion is rotated between a horizontal position and an elevated position by a drive means including an electrically driven motor. The rotatable seat portion may carry a seat pad which overlays the rear seat portion. The chair may have a fixed or movable back. The movable back may carry a back pad and may be operatively connected by frame members to the drive means to rotate upwardly when the front seat portion rotates upwardly and forwardly. An assembly may be provided for adjustably elevating the seat to accommodate persons of different heights. A sling is provided between the back and the front seat portion to close the space defined therebetween when they are rotated upwardly.

Abstract: The invention relates to a chair type furniture characterized by a frame on which a seat area may be guided forward and backward in about horizontal direction, furtheron by a tiltable back rest the lower end of which is articulated to the seat area the middle range of which seat area is articulated to the frame, which back rest is guidedly displaceable together with the seat area and at the same time is tilted around the joint on the frame thus causing a spring element to pull the seat area and the back rest into a neutral position, in which the seat area is in its rear position and the back rest is in its most upright position, wherein in order to provide the swivel connection between the seat area and the lower end of the back rest a first bar is tiltably articulated with its lower end to the frame and with the upper end is also tiltably articulated to the back rest, and wherein a second bar is articulated with one end to the first bar and with the other to the seat area.

Abstract: A seat position control mechanism with a neutral position return mechanism for a front seat of a vehicle such as two-door sedan or hard top sedan incorporates a memory plate disposed outside the locking teeth of the locking plate of the seat slide adjusting device, a rockable lever journaled with the maneuverable shaft rockably secured to the locking lever, and connecting means connected from the rockable lever to the back rest of the front seat, in addition to the ordinary seat slide adjusting device. The rockable lever is always urged by the rotating force of the torsion spring in the seat locking direction so that the maneuverable shaft can be locked or unlocked regardless of the rockable lever. Thus, the entire mechanism is low bulky, compact and light with simple construction, and the front seat can be smoothly slid without interference with the rockable lever and other members.

Abstract: A seat position control mechanism includes an inboard slave track arrangement having a single track assembly and an outboard control track arrangement having a pair of the same track assemblies arranged in vertically stacked relationship. One of the outboard track assemblies provides for horizontal adjustment of the seat and the other provides for movement of the seat to and from an easy enter position. A control cable arrangement interconnects a tilting seat back and a latch mechanism for the other outboard track assembly to release a latch mechanism and permit movement of the seat to the easy enter position.

Abstract: A seat position control mechanism includes an actuating member secured to a tilting seat back and operatively connectable to an actuating member by a pawl and ratchet mechanism in order to displace the seat forwardly to an easy enter position upon forward tilting movement of the seat back. A cam and follower arrangement releases a latch for the track mechanism upon coupling of the operating and actuating members. The seat back may be moved rearwardly to an inclined position without actuation of the seat position control mechanism.

Abstract: A seat position control mechanism includes a pair of track members, a detent member secured to one track member and having a plurality of longitudinally spaced recesses, and a second detent member secured to the other track member and having a single recess. A pawl which is manually controlled or controlled by tilting movement of the seat back is engageable with one of the spaced recesses and a single recess to lock the track members to each other. The seat can be adjusted by operating the manual control to release the pawl from a spaced recess while remaining in engagement with the single recess to unlock the track members. Tilting movement of the seat back or use of the manual control moves the pawl out of the single recess while remaining in engagement with the spaced recess. Return of the pawl into engagement with the single recess re-establishes the seat in the initial starting position and locks the track members to each other.

Abstract: An adjustable back folding seat is disclosed. A connecting rod from the back to the seat carries the axis of folding of the back, and another rod carries a bolt for immobilization of the back in use position. A bar for connecting rods ensures the longitudinal adjustment of the back with respect to the seat.

Abstract: A vehicle seat includes a subframe arranged to be secured to the vehicle or and an upper frame mounted on the subframe by four pivotal levers to form two pairs of parallelogram linkages and so constrain movement of the upper frame relative to the lower frame along an arcuate path.A pair of mounting plates carrying a back rest are pivotally secured to opposite sides of the upper frame. A pair of control levers couple the mounting plates to respective levers in a manner such that when the mounting plates are pivoted by tilting the back rest forward into a horizontal attitude, the upper frame is caused to move along its arcuate path and so draw the back rest forward to allow greater access to the area behind the back rest.

Abstract: A seat for an automotive vehicle, such as a passenger car, is disclosed. The seat comprises a seat part and a seatback joined to the seat part via a device which includes apparatus for adjusting the tilt of the seatback relative to the seat part as well as a connecting linkage to a pivot, about which pivot the seatback can be tilted forward toward the seat part after a tilt blocking mechanism between the seatback and seat part has been released, the seat part during the tilting motion of the seatback being displaced forwardly by way of the connecting linkage. The connecting linkage includes a guide structure for supporting and vertically adjusting the position of the seat and a fitting of the seatback which is pivotably mounted at the seat part. A locking arrangement couples the guide and fitting for rotation and forward displacement of the seat part during the tilting motion.