Abstract: Described are passenger seat reclining systems having a seat pan; a seat back fixed with respect to the seat pan; and at least one spreader. Motion track segments of the spreader may cause a particular recline motion. For example, the motion track segments may cause the seat body to rotate about an axis adjacent to the headrest during transition from an upright position to a reclined position of the passenger seat. Additionally or alternatively, the motion track segments may be configured such that the seat pan translates down and forward when the passenger seat transitions from an upright position to a reclined position, and such that the seat back is constrained to undergo less than less than 3 inches (7.62 cm) of rearward translation in recline travel when the passenger seat transitions from the upright position to the reclined position.

Abstract: The invention relates to a vehicle seat comprising a backrest element having a first contact surface which is arranged within a first imaginary plane, and a seat element having a second contact surface which is arranged within a second imaginary plane which is defined by a longitudinal axis and a width axis of the vehicle seat, wherein the first imaginary plane and the second imaginary plane intersect in an intersecting axis, wherein the backrest element is pivotable relative to the seat element about a rotational axis, wherein an inclination angle of the backrest element extends between the first imaginary plane and a central axis which runs perpendicularly to the second imaginary plane, wherein, in a first position of the backrest element, a distance along the longitudinal axis between the rotational axis and the intersecting axis is at least 60 mm, wherein, in the first position of the backrest element, the inclination angle is substantially 10°.

Abstract: A roller mount for seats is used in connection with a boat and a seat. First and second base slides are mounted spaced apart on a base plate. The base slides have longitudinal rack gears. First and second top slides are mounted for linear movement on the base slides in a longitudinal direction, on a plurality of rollers. A top plate is mounted on the top slides to support the seat. First and second detent plates have longitudinal top rack gears, for selective releasable engagement with the base rack gears to preclude movement of the top slides. First and second locking bars extend longitudinally adjacent the base rack gears. The top rack gears include locking slots extending longitudinally for engagement with the locking bars, to guide the top rack gears into engagement with the base rack gears. The base rack gears and the top rack gears have teeth extending upward and inward at an angle with the base plane.

Abstract: Reclining seat mounted on a foundation through first and second slides. The seat cushion is mounted on the first slide, and the seat back is mounted on the second slide. The slides, the seat cushion and the seat back are arranged to move together as one unit to have the seat recline. A head restraint is mounted at a top side of the seat back to follow and move with the back during movement of the back. The second slide has a non-linear curved shape to rotate the head restraint when the seat back moves. The curved shape rotates the headrest in a backward and downward direction when the seat back moves downward and the seat cushion moves forward, and vice versa. From the different seat positions, the head restraint follows the motion of the occupant as they move to the different seat positions.

Abstract: A passenger seat including an adjustable seat pan and a seatback segmented into at least lower and upper portions, wherein a drive link moveable in response to seat pan motion moves between cam followers on the lower and upper seatback portions to drive movement of the seatback portions to control the angle therebetween to achieve various angular relationships in various sitting and sleeping positions of the passenger seat.

Abstract: A backrest assembly for a wheelchair includes a support plate pivotally connected to a seat, wherein the support plate is configured to be pivotally adjusted between upright and reclined positions with respect to the seat; a slide plate slidably secured on a front surface of the support plate; and a backrest adjustment assembly operatively connected to the support plate and the slide plate. The backrest adjustment assembly includes a link configured to adjust the support plate. The slide plate slides over the support plate through the link.

Abstract: A movable seating arrangement includes a seat pan, a back support rigidly connected with the seat pan, and a seat member slidably mounted to the seat pan. The seat member can be moved from a retracted position proximate the back support to an extended position displaced forward of the upright position, without movement of the back support. In certain embodiments, a lumbar support is mounted to the back support, and motion of the seat member to its extended position causes a mid portion of the lumbar support to flex forward from a flattened position.

Abstract: A seat for use in an aircraft having a floor is provided. The seat has a support assembly, a seat, a seat back pivotably coupled to the support assembly for movement between an upright position and a reclined position relative to the support assembly, and an occupant back support having an upper portion and lower portion pivotally coupled to the seat back at the upper portion. A pivot link pivotally couples to the rear portion of the seat at a first end and pivotally couples to the lower portion of the occupant back support at a second end. The pivot link causes the lower portion of the occupant back support to move downwardly and forward relative to the seat as the seat back moves from the upright position to the reclined position.

Abstract: A chair with a seat portion and a base portion fixed to a floor surface. A seat back is mounted to the seat portion through a hinge portion for rotation with respect to the seat portion with a guide groove formed on side surfaces thereof. The guide groove has a guide pin movably fitted so as to be movable in the front-and-rear direction together with the seat portion with respect to the base portion. A foot stand is rotatably mounted to a front end portion of the seat portion through a second hinge portion with a connecting rod with one end portion rotatably mounted to the foot stand through a third hinge portion and the other end portion rotatably mounted to a lower end portion of the seat back through a fourth hinge portion so as to connect the foot stand and the seat back to each other.

Abstract: A backrest assembly for a wheelchair includes a support plate pivotally connected to a seat, wherein the support plate is configured to be pivotally adjusted between upright and reclined positions with respect to the seat; a slide plate slidably secured on a front surface of the support plate; and a backrest adjustment assembly operatively connected to the support plate and the slide plate. The backrest adjustment assembly includes a link configured to adjust the support plate. The slide plate slides over the support plate through the link.

Abstract: A seat assembly includes a seat cushion and seat back supported above a floor by a rear leg. The seat back is pivotally coupled to a recliner bracket. The seat cushion is selectively pivotally locked relative to the recliner bracket. A disc recliner operatively couples the recliner bracket and rear leg. The disc recliner allows the rear leg to pivot relative to the recliner bracket to move the seat assembly from a design seating position to a slouch position. The seat back is pivoted towards the seat cushion and the recliner allows the rear leg to pivot relative to the recliner bracket, thereby lowering the seat assembly to move the seat assembly to a fold and kneel position. The seat cushion is unlocked relative to the recliner bracket to pivot the seat cushion towards the seat back to move the seat assembly to a stadium position.

Abstract: A backrest assembly for a wheelchair includes a support plate pivotally connected to a seat, wherein the support plate is configured to be pivotally adjusted between upright and reclined positions with respect to the seat; a slide plate slidably secured on a front surface of the support plate; and a backrest adjustment assembly operatively connected to the support plate and the slide plate. The backrest adjustment assembly includes a link configured to adjust the support plate. The slide plate slides over the support plate through the link.

Abstract: A backrest assembly for a wheelchair includes a support plate pivotally connected to a seat, wherein the support plate is configured to be pivotally adjusted between upright and reclined positions with respect to the seat; a slide plate slidably secured on a front surface of the support plate; and a backrest adjustment assembly operatively connected to the support plate and the slide plate. The backrest adjustment assembly includes a link configured to adjust the support plate. The slide plate slides over the support plate through the link.

Abstract: A chair comprises a seat, a backrest and a chair base, wherein the backrest and the chair base are connected through a first connector, that comprises a base holder rigidly connected to the chair base, a back holder secured to the backrest, a rotation holder, a first linkage bar, a second linkage bar and a third linkage bar. The chair solves the problem that a user's clothes is pulled up when the backrest of the chair is turned backward in the traditional chair.

Abstract: In a vehicle seat having a seat back and a seat cushion that are placed in one of a normal position and a reclining position that is more reclined than the normal position, a link mechanism is operable to change the positions of the seat back and the seat cushion by moving the seat back and the seat cushion in relation to each other, so that a back contact point of the seat back, where a predetermined portion of the back of the seated person contacts the seat back, contacts the predetermined portion of the back of the seated person in both the normal position and the reclining position, and so that an ischial contact point of the seat cushion, where a tuber-of-ischium of the seated person contacts the seat cushion, contacts the tuber-of-ischium of the seated person in both the normal position and the reclining position.

Abstract: Subject matter described herein includes a seat assembly (e.g., chair, bench, sofa, vehicle seat, etc.) having a seat and a back rest that adjust together to facilitate reclining. The seat assembly includes a base coupled to a back-rest frame. The base remains substantially fixed relative to synchronized adjustment of the seat and the back rest, and the back-rest frame includes a pivot on which the back rest rotates to adjust a back-rest recline position. The assembly also includes the seat hingedly coupled to the back rest and a fore-and-aft adjuster that couples the seat to the base. A movement restrictor attaches to the seat and the base and biases the seat in a rearward orientation. The assembly further includes a pivot receiver coupled to the back rest, the pivot receiver providing a path along which the pivot travels when the seat moves forward and rearward.

Abstract: Described are passenger seats having a seat pan assembly with reclining and tilting mechanisms, a seat back pivotally coupled to the aft end of the seat pan assembly, and a lumbar mechanism coupled to the seat back and the seat pan assembly. The reclining mechanism is configured to adjust a forward position of the seat pan assembly and the rotation of the seat back between upright and reclining positions. The tilting mechanism is configured to rotate an aft end of the seat pan relative to the pan frame and deploy the lumbar mechanism.

Abstract: An upholstered recliner chair includes a base, a seat unit disposed on the base, a backrest frame pivotably mounted on the base and hingedly mounted to the seat unit to be displaceable between upright and tilted positions, a sidewise fixed lever extending radially from the backrest frame to be movable with the backrest frame, a backrest padding disposed to be slidable relative to the backrest frame in a lengthwise direction, and a pulling unit coupled to the backrest padding, the backrest frame, the sidewise fixed lever, and the seat unit such that the backrest padding is moved with the sidewise fixed lever during displacement of the backrest frame between the upright and tilted position to thereby vary a distance between the backrest padding and the seat unit.

Abstract: A seat (14), particularly but not exclusively for a wheelchair, comprises a bottom rest (13, 60), a back rest support (18) rotatable relative to the bottom rest about an axis of rotation (100); and a back rest (22) slidably mounted on the back rest support and moveable therealong to vary its position relative to the bottom rest. The back rest is kinematically linked to the bottom rest such that the back rest moves nearer to the axis of rotation as the angle between the back rest support and the bottom rest increases.

Abstract: Disclosed is a vehicle seat assembly having a feature in a seat cushion angle adjustment mechanism of a seat cushion in a simple configuration. A vehicle seat assembly according to an embodiment of the present invention comprises a seat back, a seat cushion coupled to the seat back, and a seat cushion angle adjustment mechanism for adjusting the seat angle of the seat cushion. The seat cushion angle adjustment mechanism comprises a seat cushion frame, a pivotal coupling member to pivotably couple the seat cushion frame to a slider of the seat rail, a guided part provided at a position away from a coupled position of the seat cushion frame to the pivotal coupling member, and a guide member having a guide groove which engages the guided part and guides the movement of the guided part and disposed with an angle between the guide groove and the slide surface of the seat rail set to a specific angle ?.

Abstract: A tilt mechanism provides improved coordination in the motions of a chair seat and a chair back during chair tilt. In one aspect, the tilt mechanism includes a seat base, a back bracket, a back support bar, a guide track and a back follower member. The seat base is slidably coupled to the chassis and rigidly coupled to the chair seat. The back support bar is configured for moveable engagement with the back bracket coupled with the chair back. Additionally, the back follower member, coupled with the chair back, is received within one or more channels formed in the guide track for moveable engagement therewith. A proportional and asynchronous action is achieved via the back bracket moving relative to and in engagement with the back support bar, the back follower member moving within the guide track and the seat base sliding forwardly relative to the chassis.

Abstract: A device that can be attached to any existing reclining type device such as chairs and beds that will eliminate shear forces on the user's body regardless of the level of movement. The primary components of the device are a seat plate, a seat slide plate, a back plate and a back slide plate. The back slide plate is pivotally attached to the seat plate. The seat slide plate is pivotally attached to the back plate. Pivoting the back plate with respect to the seat plate engages the pivotally attached seat slide plate and the pivotally attached back slide plate toward or away from each other depending on the starting position. The engagement of the slide plates mirrors the movement of the occupant in both the recline to horizontal position or the return to upright to vertical position.

Abstract: A passenger seat assembly for a vehicle, particularly an aircraft, which is adapted to provide self-contained, individual seating and sleeping accommodation for a passenger, said seating assembly including a supporting structure (42) for supporting said assembly off the floor of a vehicle; one or more movable, passenger-bearing, structural components (71,72); and means for connecting said movable, structural components to said structure such that said components can be selectively moved between a seat configuration, in which a plurality of passenger-bearing surfaces on said one or more structural, movable components (71,71) or said supporting structure form a seat for the passenger, and a bed configuration, in which a plurality of said bearing surfaces (47,48,67,74,76) are disposed substantially coplanarly and substantially contiguously to form a bed for the passenger; characterized in that at least one of said movable components (72) is double-sided, comprising first and second opposite sides, one of said si

Abstract: A recliner has a frame having a pair of longitudinally extending and transversely spaced side beams having confronting inner faces and head and foot ends, a middle cushion on the frame between the ends thereof, a head cushion on the frame at the head ends, and a foot cushion on the frame at the foot ends. Respective head and foot hinges couple the middle cushion to the head and foot cushions for relative pivoting about respective transverse axes. A pair of transversely spaced followers on the middle cushion ride on respective longitudinally extending nonstraight guides on the side-beam inner faces. Supports, e.g. rollers, on the foot end of the frame slidably support the foot cushion thereon. Two rigid arms each have one end pivoted on a respective one of the side-beam head ends and an opposite end pivoted on the head cushion.

Abstract: A vehicular seat has a seat cushion supported on a floor portion of a vehicle body panel, a seat back divided into a seat back upper and a seat back lower and controlled to be reclined, a seat back upper frame supporting the seat back upper and fixed to a rear portion of the vehicle body panel, a seat back lower frame supporting the seat back lower and rotatably connected to the seat back upper frame, a seat cushion frame supporting the seat cushion and a driving unit fixed to the floor portion and connected to the seat cushion frame so as to activate the seat cushion frame to tilt upwards and forwards. The seat cushion frame and the seat back lower frame are rotatably connected to each other so that the seat back lower is displaced forwards as the seat cushion frame is activated to tilt.

Abstract: A vehicle slouch seat includes a cushion frame attached to a seat back frame such that the cushion frame is pivotable from an upright position to a slouch position. The slouch seat is also foldable and stowable against a vehicle cabin wall. Motion between the upright and the slouch positions is mediated by a guide hook attached to the back side of seat back frame.

Abstract: A seat assembly includes a seat cushion, an adjuster mechanism and a seat back. The seat cushion has opposite front and rear ends. The adjuster mechanism is operatively coupled between the floor of the motor vehicle and the seat cushion. The adjuster mechanism allows selective adjustment of the seat cushion relative to the floor among a plurality of vertical positions. The seat back has an outer frame. The outer frame has spaced apart side members. The seat back has an inner frame slidably engaged with the side members for movement along a path defined by the side members. The inner frame of seat back is connected to the rear end of the seat cushion for movement of the inner frame relative to the outer frame along the path in response to corresponding adjustment of the seat cushion among the plurality of vertical positions.

Abstract: The present invention provides an apparatus for use in sitting on a vehicle and a method for use in manufacturing a seat. The apparatus can include a base, a back secured with the base and a seat pan secured with the base. The seat pan can further include a first portion and a second portion, wherein the first portion is configured to pivot relative to the second portion, such that the first portion of the seat pan pivots allowing a distal end to pivot so that the distal end can be moved out of a relative alignment with the second portion. The seat pan can be movably secured with the base allowing the seat pan to move generally horizontally. The back can also be pivotably secured at with the base allowing a lower portion of the back proximate the seat pan to pivot.

Abstract: A synchrotilt chair mechanism and a chair are provided. The synchrotilt chair mechanism is for use on a chair that has a base assembly with an extending pedestal, a seat and a back. The mechanism includes a chassis that is coupled to the pedestal and a seat plate that is coupled to the chassis and to the chair seat. The seat plate can slide relative to the chassis. The mechanism further includes a back support bar that is coupled on one end to the chassis. The support bar extends upwardly from the chassis. A pair of arm supports are further included that can be coupled to the chair. Each arm support extends upwardly adjacent one side of the chair seat. The mechanism further includes a back bracket having a pair of ends that extend adjacent a side of the chair. Each end is pivotally coupled to the adjacent arm support. The back bracket further includes a guide plate that mounts to the chair back and that has at least one guide slot.

Abstract: A frame assembly for vehicle passenger seat, including at least one leg unit, including a cantilevered transverse main beam carried by a fore and aft-extending seat leg for being mounted to the floor of the vehicle, a transversely extending front beam positioned forward of the seat leg, a backshell attached to and carried by the transverse main beam, a seat back carried on the backshell, and a seat bottom carried by a perimeter frame mounted on the backshell.

Abstract: A seat, preferably an aeroplane seat, includes a seat base (12) which can be positioned on the floor and seat components which are provided for each seat and are arranged on the seat base (12). The seat components can be a seat back (1) and a seating element (2) with a front region (3) and a rear region (4). The rear region is located at the point where the seating element joins the seat back (1). The seat back can be displaced from an upright position to an inclined position and vice versa, simultaneously adjusting the inclination of the seating element (2). The front region (3) of the seating element (2) essentially maintains its height above the floor. The rear region (4) sinks as the seat back (1) increasingly inclines. The seat back (1) has at least one first part (5) and one second part (6) which at least partially support each other with the adjacent surfaces and which can be displaced in relation to each other during the adjustment of the inclination of the seat back (1).

Abstract: A reclining apparatus which includes guide members (20) that move forward and backward on opposite sides of a bottom plate (3). The guide members (20) are moved forward and backward by a roller (21, 22) that is slidable and rotatable along a surface of the bottom plate (3). A seat member (30) and a back member (50) are attached to the guide members (20) and, accordingly, are able to move smoothly forward and backward without excessive force.

Abstract: An RF MOS transistor having improved AC output conductance and AC output capacitance includes parallel interdigitated source and drain regions separated by channel regions and overlying gates. Grounded tap regions contacting an underlying well are placed contiguous to source regions and reduce distributed backgate resistance, lower backgate channel modulation, and lower output conductance.

Abstract: Folding seating for automotive vehicles includes a seat back and a seat bottom both movable mounted on a main frame which is supported in an active position by a leg engaging the floor of the vehicle. The leg is connected to the main frame by a pivot connection to permit the leg to be moved automatically by a rigid actuating link connected to the leg and to the vehicle from a deployed position engaging the floor of the vehicle to a storage position tucked against the main frame as the main frame is pivoted from the active position to a storage position in which the main frame and the seat back and seat bottom extend along the wall of the vehicle to thereby maximize storage space.

Abstract: Chairs employed in economy-class aircraft seating often incline by rotation of the back about a fixed point, usually the rear edge of the fixed seat. While increasing the comfort of one passenger, this form of seat inclination reduces the space available for the passenger seated in the aft seat. A chair with improved cradle motion, particularly for use in aircraft, is described in which inclination may occur with little or no reduction in the space available to surrounding passengers. Inclination is achieved by the contemporaneous forward sliding of the back portion and the seat portion of the chair relative to the fixed seat frame.

Abstract: A wheelchair is provided, having a recline mechanism for the chair back and wherein the seat is repositioned forward in response to recline to reposition the user's weight relative to the supporting wheels. The chair is also independently equipped with a weight-shifting tilt mechanism. Moreover, a bilateral tracking mechanism (i.e., controlled motion is transmitted to both sides) is used to reposition the seat. This avoids torque due to uneven loading of the chair. Back canes of the chair and/or brackets on the chair back are slotted to enable infinite adjustment of chair arms, ventilator trays, and other accessories.

Abstract: An improved chair back tilt apparatus for a wheelchair. The apparatus includes a seat and a back support pivotally coupled to the seat. A backrest is slidably coupled to the back support and coupled to the seat by a rigid L-shaped support. A linear motion actuator is secured between the seat and the back support to recline the seat. As the seat reclines, the L-shaped support pulls the backrest downward. The L-shaped support also forces the backrest upward as the seat is returned to its original position thereby substantially eliminating back shear associated with prior art back tilt systems.

Abstract: A seating unit (1) comprises a fixed housing (10) containing a primary seat with a reclinable back arranged to recline in such a manner that it remains within the housing. The seating unit is suitable for a aircraft cabin and may further comprise a leg-rest arranged to cooperate with the seating portion to form part of a substantially flat surface when the back is reclined in a substantially horizontal position. The seating unit may further comprise a secondary seat (3) positioned to face the primary seat, the secondary seat having a seating portion positioned to cooperate with the leg-rest of the primary seat to form a portion of the substantially flat surface when the back of the primary seat is reclined in the substantially horizontal position. Privacy between seats and use of available space within an aircraft cabin may be optimised by arranging at least some of the seats in an echelon.

Abstract: Adjustable seating has a frame, a seat bottom mounted on the frame so as to slide forwardly and rearwardly, and a seat back mounted on the frame so as to slide upwardly and downwardly and also to tilt rearwardly from a resiliently restrained upright position. A lumbar back is mounted on the frame between the seat bottom and seat back so as to move generally in coordination with movements of the seat bottom and seat back. The lumbar back provides good support for the lumbar portion of the body of a person seated in the seating in all postures and all positions of the seat bottom and seat back.

Abstract: A seat and lumbar motion chair having a lumbar support assembly which is coupled to the seat and a mounting assembly mounting the seat and the lower end of the lumbar support for movement in a generally horizontal orientation in fore and aft directions. Movement of the seat is along an upwardly tilting path having a compound radius of curvature centered proximate to the mass of a person seated on the seat. The lumbar support mounting assembly is movable at two points, namely, in the fore and aft direction at the rear of the seat and pivotally at the back support. The seating apparatus further includes a back support positioned to engage the person's upper back in the thoracic region. A method including the steps of employing a seat and lumbar support assembly mounted for movement relative to the back support along a fore and aft direction to maintain contact between the person's buttocks with the seat and contact of the lower back with the lumbar support during motion of the person's body.

Abstract: A seat and lumbar motion chair having a lumbar support assembly which is coupled to the seat and a mounting assembly mounting the seat and the lower end of the lumbar support for movement in a generally horizontal orientation in fore and aft directions. Movement of the seat is along an upwardly tilting path having a compound radius of curvature centered proximate to the mass of a person seated on the seat. The lumbar support mounting assembly is movable at two points, namely, in the fore and aft direction at the rear of the seat and pivotally at the back support. The seating apparatus further includes a back support positioned to engage the person's upper back in the thoracic region. A method including the steps of employing a seat and lumbar support assembly mounted for movement relative to the back support along a fore and aft direction to maintain contact between the person's buttocks with the seat and contact of the lower back with the lumbar support during motion of the person's body.

Abstract: Treatment booth provides patient isolation for sputum induction and aerosolized treatment. The booth is provided with a seat assembly to enable a patient to comfortably recline in a number of positions. Hazardous microbial airborne particles within the booth are filtered using a removable HEPA filter and U.V. germicidal radiation lamps supported by a rigid floor assembly constructed from a grid of interconnected longitudinal and transverse members.

Abstract: A recliner chair assembly with a vertical lift that raises the seat back that in turn tilts the seat. The lower end of the back is tracked to cause the back to recline and also to shift the seat horizontally and vertically. Horizontal movement of the seat causes movement relative to the chair arms and ottoman extension and retraction.

Abstract: A vehicular seat whose seat back is divided into upper and lower seat backs. The lower seat back is hingedly connected at its lower end section with a seat cushion and at its upper end section with the lower end section of the upper seat back. The upper end section of the lower seat back is slidably supported onto a back panel of a vehicle body through a bracket fixed to the back panel, so that the lower seat back upper end section is slidable along a guide opening formed in the bracket. The upper seat back is also slidably movable along the back panel, following the lower seat back.

Abstract: A reclining chair that meets requirements of chair design promoting occupant comfort: The chair, suitable for use as a bed, provides a means whereby when the seat moves forwardly, the backrest reclines and vice versa, thereby controlling the position of the center of gravity in all backrest positions, and thereby also maintaining approximately the same seat height in all backrest positions. The chair provides a means for adjustably positioning ground engaging components such as wheel assemblies, rocker arms, and other ground engaging devices to alter seat angle. The rocking function also has therapeutic advantages. The use of wheel assemblies, which may be motorized, permits use as a wheelchair. The chair supports the occupant via a plurality of closely spaced springably supported transverse slats. Such support is designed to provide approximately constant average spring deflection in the backrest, seat, and legrest segments at an intermediate backrest angle.

Abstract: A chair comprises a seat (6), a back (7) and a frame (2, 3, 4, 5). In order to give the user a comfortable opportunity to change his position during the use of the chair, the positions of both the chair (6) and the back (7) are readjustable with respect to the frame. The angular position of the seat is readjustable from a first position to a more backward inclined position and the back (7) is readjustable from a first position to a more backwardly inclined position. The back (7) is during the readjustment lowerable with respect to the seat (6) in order to avoid movements between the body and the clothes of the user during the readjustment of the chair.

Abstract: An apparatus for adjusting the inclination of a rear seat of a vehicle is described, of the type comprising an electromechanical linkage which is able to translationally move in one direction or the other the seat cushion assembly to which the back-rest is hinged, to thus vary the inclination of this latter, and first electrical control means for said linkage. The main characteristic of the present invention is that it comprises second electrical means which, when a door of the vehicle is opened, cause said cushion assembly to translate from the position which it assumed before the opening, to a withdrawn end-of-travel position in which the back-rest is lesserly inclined.

Abstract: A back stretching chair is presented. It comprises a generally rectangular base having fore and aft ends. A back rest member has top and bottom ends and is rotatably coupled by its bottom end to the aft end of the base by rotating hinge means so that the back rest can rotate about the aft end of the base. A moving seat is coupled above and parallel to the base and is capable of moving fore and aft in relation to the base. Coupling means couple the back rest to the moving seat so that when the back rest is moved down, the seat moves forward and when the back rest is moved up, the seat moves back. Moving the seat forward stretches the back.

Abstract: An adjustable chair structure comprises a support frame of substantially L-shape conformation supported by a base in the form of an upright column supported on a set of radial feet carried on castors. The L-shape support frame has a horizontal arm for supporting a seat part of a seat body, and an upright (i.e. vertical or inclined at an acute angle to the vertical) arm which supports a seat back part of the seat body. The seat part is connected to the seat back part by means of a flexible tongue projecting from the middle of the rear edge of the seat part of the seat body, which tongue has notches by which the position of the seat back with respect to the seat part can be determined.

Abstract: A vehicle seat assembly is for a vehicle seat having a back rest and a seat surface.The back rest is adjustable in inclination and the seat surface is adjustable in height and inclination.To reduce the height of the assembly and to enable the height and inclination of the seat surface to be adjusted independently of the back rest inclination, the seat frame is supported at its front end by levers. At the rear end of the seat frame is a support frame and a back rest frame, the back rest frame being movable relative to the support frame to raise and lower the rear end of the seat frame. The support frame and back rest frame are movable together about a horizontal axis to adjust the inclination of the back rest and the seat frame is suspended at its rear end on the back rest frame.