Abstract: A seat unit includes a frame structure and a seat. A linkage assembly interconnects the frame structure and the seat for displacement of the seat relative to the frame structure between a lowered sitting position and a raised position to provide assistance for the person using the seat unit to stand up therefrom. The linkage assembly causes the rearward part of the seat to be raised by a greater distance than the front part so that the seat also tilts forwardly. First and second springs urge the seat towards its raised position, the springs being operable in combination to produce an overall spring force urging the seat towards its raised position with a spring force value which is of a desired magnitude in each part of the movement towards the raised position.

Abstract: A chair (10) to promulgate kinesthetic therapy including a seat frame (50), a chest rest frame (100), an arm rest frame (250) and a base (20). The seat frame (50) and the chest rest frame (100) are independently attached to the base (20) and extend upwardly and inwardly from the base (20) where they support a seat (80) and chest rest (152) respectively. Both the seat (80) and chest rest (152) are adjustable along the same axis A via frames (50) and (100) respectively. Axis A makes an oblique angle .alpha. with the plane of the base (20). The arm rest frame (250) is attached to the base (20) immediately in front of and parallel to the chest rest frame (100). The arm rest frame (250) includes an arm rest (280) which is horizontally supported and elevationally adjustable above the base (20). A head support (170) is spaced from the chest rest (152) via a pair of spaced parallel cantilevered arms (186), (188).

Abstract: A seat-height adjusting device wherein a seat-cushion is moved relative to a vehicle-floor side is comprised of a supporting shaft having a first true round portion, a tapered eccentric portion and a second true round portion and rotatably mounted at the vehicle-floor side so as to be movable along a lateral direction thereof, a first gear secured to the the vehicle-floor side, supporting the first true round portion of the supporting shaft and having an inner teeth portion, a second gear linked to the seat-cushion, supported on the second true round portion of the supporting shaft and having inner teeth portion whose teeth number is different from that of the inner teeth portion of the first gear, an intermediate gear mounted on the tapered eccentric portion of the supporting shaft, having an outer teeth portion engaged with the inner teeth portions of the first gear and the second gear and differed therefrom in teeth number, and a device for urging the supporting shaft in order to increase a relationship be

Abstract: A user-powered seat uplift apparatus including a structural frame unit, a mechanical uplift assembly unit and a power transfer mechanism connecting the two units allows the user to more easily obtain a standing position from a previous seated position. The structural frame unit is used to support and guide the mechanical uplift assembly unit. The mechanical uplift unit has two sections which can independently move vertically with respect to the structural frame unit. One section has a seat, the other has rails. When downward force is applied on the rails, the section having the rails moves vertically downward and produces an upward force in the section having the seat through the power transfer mechanism. This interface allows the user to more easily uplift themselves from a seated position and is especially useful for older and/or medically disabled persons.

Abstract: A vertically adjustable seat apparatus and method for a conventional wheelchair having a pair of horizontally spaced seat support bars running front to back of the wheelchair and which are supported in position by a pair of cross-bars. The adjustable seat has a substantially flat seat and a plurality of belt means adapted to support the seat and running along the underside thereof. A locking means is associated with each of the belt means for releasably locking the belt means at a desired length corresponding to a distance below the support bars at which the seat will be positioned. A plurality of hook means is adapted to be slidably received on the belt means and adapted to releasably engage the seat support bars and support the seat in the desired vertical position.

Abstract: Assembly components are provided for children to build and rebuild their own assemblies of school furniture. The assembly components include, as general categories, base components and interchangeable auxiliary components. The auxiliary components can be releasably coupled with the base components to build school-related assemblies including chair assemblies with adjustably high seating surfaces; a notice board assembly for supporting notices or a chalk board or the like; a stage assembly for theatrical productions; symbol display assemblies, as for displaying the alphabet in block letters; and desk assemblies with adjustably high desk tops. In some embodiments of the present invention, the furniture base is not just a unitary component but an assembly of modules. Accordingly, there are modules which can be releasably coupled together to build a modular assembly of a furniture base.

Abstract: In a chair having a seat which is adjustable in both height and tilt, there is provided a simplified adjustment mechanism over prior art document 2226756-A, in which a first adjustment mechanism is provided to tilt the seat of the chair to suit the physique of a particular user, which mechanism is compatible, and used in conjunction with a second adjustment mechanism which is used to vary both height and tilt of the seat cooperatively to suit the specific requirements of said particular user for being in a seated, or semi-standing position at various heights.

Abstract: Chair including a base structure, a seating structure having a seat of predetermined depth and a connecting structure for connecting the base structure and the seating structure. The base structure and the seating structure each include two coupling parts which extend along corresponding extension axes, and the connecting structure includes two connecting nuclei at the sides of the two structures, having a limited depth with respect to the depth of the seat. Each connecting nucleus includes two coupling counter slots which may interlock with the two coupling parts of the base structure and with the two coupling parts of the seating structure, respectively, along the extension axes of the above-mentioned coupling parts.

Abstract: An adjustable geriatric chair comprising a pair of laterally spaced apart floor-engaging upright frames; brackets associated with each of the frames and provided with a plurality of mounting bores including an upper rear set, a lower rear set and a front set; a back frame; and a seat frame. The back frame and seat frame, each having a pair of laterally opposing longitudinally extending sides, are movably disposed within the upright frames to align a pair of mounting sockets on each side of the back frame with a selected pair of bores in the upper rear set of bores and a front and a rear mounting socket on each side of the seat frame with a selected bore in each of the front and lower rear sets of bores, and are mounted to the brackets by mounting members inserted through the selected bores and extending into the mounting sockets. Webbing is mounted on the seat frame, such that the seat suspends the pelvis of the user without bottoming against a hard surface, and on the back frame.

Abstract: A complex chair device includes a first chair and a second chair telescoped in the first chair. The seat of the first chair has a central receiving hole in which the seat of the first chair is fitted. A plurality of notches are formed in the peripheral edge of the central receiving hole. An inwardly extending flange is formed on the wall which defines the central receiving hole. Each of the legs of the second chair has a plurality of positioning notches formed along its longitudinal axis. A part of each of the legs of the second chair engages one of the notches of the seat of the first chair so that the second chair can be securely connected to the first chair by means of moving the second chair relative to the first chair and by means of rotating the second chair about its central axis when the inwardly extending flange of the first chair is aligned with and received in the positioning notches which are spaced from the seat of the second chair at the same distance.

Abstract: Adjustment device for tiltable sitting furniture with a stand (1) and a seat board (9) pivoting at the front side of the stand, as well as a driving device (16) arranged to convey the seat board (9) its tilt motion, where the seat board (9) at the front is pivotally arranged at the front edge of a fork (7) articulatedly suspended via arms (5) at the front part of the stand, which fork is in rear the part of the stand and at the rear is guided slidably against a slide rail (10), and the driving device (16) of which via a pressure arm (12) pivotally arranged at the stand transfers motion to the seat board, in addition to the pressure arm (12) is pivotally connected a control bar (19) between its pivot point and its end with the seat board, which control bar during work of the driving device (16) with its front part first is brought to bearing on a position adjustable backing roller (21) connected to the arms (5) of the fork (7) and subsequently with its rear part (23) in different positions adjustable against a

Abstract: An adjustable height tiltable footrest comprises a plate having an upper surface adapted to support the feet of a human user, a base for supporting the plate and having front and rear guide surfaces which are oblique with respect to each other. The plate has roller assemblies with rollers which rest on the guide surfaces to support the plate tiltably, and the roller assemblies snap into recesses formed on the underside of the plate so that the spacing between the roller assemblies can be adjusted to vary the overall height of the plate.

Abstract: An adjustable chair comprises a front seat assembly, a rear seat assembly, and a base assembly, the base assembly supporting the front and rear seat assemblies independently of one another. The front seat assembly has a front seat pivotally mounted for rotation about a horizontal axis. The rear seat assembly has a rear seat pivotally mounted for rotation about a horizontal axis The two rotation axis are separated from one another a sufficient distance that a person may sit on the front seat and position his or her back against the rear seat. Each seat is pivotally mounted by its respective seat assembly means such that the rotation axis for each seat is located at a fulcrum point from which the seat is pivotally supported.

Abstract: A vertically adjustable seat with means to permit adjustment of the horizontal inclination of the seat and partial rotation thereof, consisting of a pedestal base, a support frame made of two tubings attached to it, as well as a seat supporting member fastened to the support frame and a seating unit affixed to this seat supporting member, in which arrangement the seat supporting member, along with the seating unit, is vertically adjustable along the support frame, and the seating unit is adjustable in inclination, in which arrangement the seating unit is fastened onto a seat supporting member and the seat supporting member is swivellably mounted between two forward projecting arms of a click-stop unit which is slidable along the support frame, said seat supporting member being capable of being locked into various positions, and in which arrangement the click-stop unit with detent latches is capable of being brought into engagement with detent holes in the support frame to effect adjustment of the height of th

Abstract: A user-operated seat uplift apparatus including a structural frame unit and a mechanical uplift assembly unit, thereby allowing the user to more easily obtain a standing position from a previous seated position. The structure frame unit is used to support and guide the mechanical uplift assembly unit. The uplift unit consists basically of a seat member, two rail members, one disposed on each side of the seat member, and an interconnection means. The user presses downward upon the rail members, which move in a downward direction. This downward movement produces an upward movement in the seat member. And likewise, downward movement of the seat member results in upward motion of the rail members. This interface allows the user to more easily uplift themselves from a seated position and should prove especially useful for older and medically disabled persons.

Abstract: A standing aid for use with a checkout counter to assist an operator of the checkout counter while standing above a floor, comprising a base frame adapted to be mounted above the floor adjacent the checkout counter, a buttocks cushion adapted for engaging the buttocks of the operator of the checkout counter while standing, and support structure mounted to the base frame for movably supporting the buttocks cushion above the floor in a plurality of vertical positions and in a plurality of lateral positions, the buttocks cushion being pivotally mounted to the support structure.

Abstract: A seat assembly with an integrated seat cushion and seat track frame in which the lateral seat cushion suspension load is transferred from the seat cushion frame to the seat track frame enabling a seat cushion frame to be constructed without a rear cross member. As a result, the weight of the seat cushion frame is reduced, without sacrificing the structural integrity of the seat assembly frame.

Abstract: A vehicle seat assembly is disclosed which includes an integral child seat that can be deployed for use in seating a child or maintained in a stowed position enabling the seat to be occupied by an adult. The seat assembly includes a pair of panels movably mounted to the seat back. When the side panels are moved outwardly, they extend forwardly from the seat back forming side bolsters for the child seat. Troughs are revealed adjacent to the side bolsters which contain the shoulder belts of the child restraint system. The child seat back cushion is disposed between the two troughs and is comprised of the same seat back surface as used by an adult when seated in the seat assembly. As a result of using the same seat back surface for both the child seat and an adult, the seating comfort of the adult seat back is maintained at the same level as with a conventional seat assembly not having an integral child seat.

Abstract: A person transporter in the form of a chair having an open frame and a removable seat at a height above the knees of the average person so that it is easier to get into and out of, the seat being tiltable from a horizontal position either forward or back. A footrest in the lower part of the frame is movable from wholly housed in the frame to an exposed position for use, a vertical lever at the side of the frame for so moving the footrest, the lever being easily accessible to the attendant.

Abstract: A seat adjuster is disclosed, which comprises a seat pan; parallel first and second base members; spaced first and second rod members, each being rotatably supported by the base members; first and second link mechanisms respecitvely connected to the first rod member and mounting thereon a front part of the seat pan, the first and second link mechanisms raising the front part of the seat pan when the first rod member is rotated about its axis in a given direction; third and fourth link mechanism respectively connected to the second rod member and mounting thereon a rear part of the seat pan, the third and fourth link mechanism raising the rear part of the seat pan when the second rod member is rotated about its axis in a given direction; and first and second drive mechanisms mounted to the first base plate for turning the first and second rod members respectively.

Abstract: A height adjusting device for a seat comprises a seat-cushion, an operating mechanism for moving simultaneously a frontward portion and a rearward portion of a seat-cushion in the vertical direction, and a reclining mechanism for adjusting of the reclining angle of the seat-cushion by moving the frontward portion thereof in the vertical direction wherein the operating mechanism is operated without affecting the adjusted reclining angle of the seat-cushion established by the reclining mechanism.

Abstract: A standing aid for use with a checkout counter to assist an operator of the checkout counter while standing above a floor, comprising a base frame adapted to be mounted above the floor adjacent the checkout counter, a buttocks cushion adapted for engaging the buttocks of the operator of the checkout counter while standing, and support structure mounted to the base frame for movably supporting the buttocks cushion above the floor in a plurality of vertical positions and in a plurality of lateral positions, the buttocks cushion being pivotally mounted to the support structure.

Abstract: An adjustable chair comprises a front seat assembly, a rear seat assembly, and a base assembly, the base assembly supporting the front and rear seat assembly independently of one another. The front seat assembly has a front seat pivotally mounted for rotation about a horizontal axis. The rear seat assembly has a rear seat pivotally mounted for rotation about a horizontal axis. The two rotation axes are separated from one another a sufficient distance that a person may sit on the front seat and position his or her back against the rear seat. Each seat is pivotally mounted by its respective seat assembly such that the rotation axis for each seat is located at a fulcrum point from which the seat is pivotally supported.

Abstract: A high chair and/or booster seat is disclosed which comprises two modular side panels, a modular back panel, a modular seat panel, and a tray which is easily assembled and disassembled by interlocking side panels without the use of screws or the like. To assemble, the back panel is interlocked between the two side panels and the seat is interlocked with the side panels and back panel. The seat is adjustable in height to three different positions. The tray is removably secured to the upper edges of the side panels and is adjustable to three different positions along the upper edges of said side panels. A harness system is provided for securing the seat to an adult chair and for securing the child within the chair. The seat may be used alone with or without the tray or may be secured to an adult chair and used with or without the tray.

Abstract: A built-up chair, comprising two stands connected together by a connecting bar, two pairs of supports respectively mounted on said two stands at the top, two side bars respectively mounted on said two pairs of supports and connected together by two cross bars for holding a seat, and a back support connected between said two pairs of supports at the top. By fastening connecting bolts in connectors, the two stands and the two side bars are respectively connected to the connecting bar or the cross bars at two opposite ends. The seat is fastened in the two side bars through sliding joint and supported by the two cross bars. The back support has two rows of holes for fastening in between the two pairs of supports by screws at the top. The two pairs of supports have each a plurality of parallel grooves at the middle for adjusting the level position of the side bars easily.

Abstract: A vehicle seat which is adjustable both with regard to its height and angle of inclination has front and rear height mechanisms which can be operated independently of one another. Each of the height adjustment mechanisms has at least one lever, which levers are pivotable about an axis running in the lateral direction of the seat. The upholstery support of the seat is supported on support points of these levers, which lie at a distance from their pivot axes. The front and rear height adjustment mechanisms are connected with a coupling drive, which, when the front height adjustment mechanism is activated limits the height adjustment of this front height adjustment mechanism, and when the rear height adjustment mechanism is activated, the height adjustment of the support point thereof is transferred to the support point of the front height adjustment mechanism.

Abstract: An exercise chair is specifically designed to be usable as an ordinary office chair or as a device for exercising the muscles of the lower back. The chair employs both anterior and posterior pelvic restraints to prevent rotation of the pelvic region during an exercise routine. The chair includes a variable resistance mechanism for selectively varying the forces that must be overcome during an exercise movement which consists of forcing the back of the chair rearwardly from a desired initially forward position.

Abstract: Disclosed is a wheelchair seat system which may be adapted to fit virtually any wheelchair frame and provides a high degree of adjustability in order to fit virtually any user and to achieve various therapeutically significant functions. Specifically, the wheelchair seat system of the present invention provides a seat which may be raised or lowered, pitched forwardly or rearwardly, rolled to one side or the other, and slide forward or backward to accommodate the wheelchair user's needs. Further, the seat system of the present invention provides for ready adjustments, and, at the same time, provides for easy disengagement and set-up of the seat system when it is desired to fold up the wheelchair for transport or storage.

Abstract: An adjustable chair includes a base having a pair of spaced, parallel, forwardly extending frame members and a vertically extending frame connected to, and projecting upwardly from, the base, the vertically extending frame having a pair of spaced, generally parallel uprights. The chair includes a seat, leg rest and knee rest that are connected to the base, and which are both vertically and pivotally adjustably connected to the base. The chair includes lower, middle and upper back rests, as well as a head rest that is disposed above the upper back rest. The back rests and the head rest are mounted for pivotal movement about laterally extending axes. The chair also includes a pair of vertically adjustable arm rests. The vertically extending frame is mounted for pivotal movement about a laterally extending horizontal axis located near the rear edge of the seat. The present invention enables the support portions of the chair to be adjusted to accommodate a person of any size or shape.

Abstract: The applications of the arrangement of the present invention includes chairs, tables and shelves. Disclosed is a chair having a seat of adjustable height. The arrangement includes a first member or seat having a contact surface for abutting a second member or pair of uprights and means for pivoting the first member with respect to the second member, whereby pivoting first member disjoins the contact surface of the first member from the second member enabling the first member to move longitudinal position with respect to the second member.

Abstract: The invention provides for a toileting module which can be used in a standard wheelchair and consists of straps and a tensioning mechanism therefor attached to a support structure. The straps run under the wheelchair-bound person and, when tightened, raise the person above the seat cushion permitting its removal and the insertion of a waste receptacle for toileting.

Abstract: A seating unit for accommodating an adult in a seated position and having a child restraint seat convertible from a position stored within the back of the adult seat to a position for holding and restraining a child. The child restraint seat has a generally U-shaped restraint bar member which extends horizontally from the seat back in the open position and which pivots about the ends of the legs to a vertical closed position, wherein the restraint bar lays flush with the forward surface of the seat back and the bight portion of the U shape forms the top edge of the seat back. The child seat also has a seat cushion portion which pivots about its lower edge to lay horizontally in the opened position upon the adult seat and which pivots vertically to lay flush in the seat back and nest between the legs of the restraint bar in the closed position.

Abstract: A wheelchair with a height-adjustable seat comprising telescopic cross members mounted behind the back of the wheelchair and four vertical guide rods with two horizontal supporting members to support the seat of the wheelchair with the bolts located on each of the lateral recesses, permitting the seat to be adjusted in height according to various requirements of different users.

Abstract: An inclinable stool for supporting the weight of the body and permitting a variety of inclined positions comprises a tripod base, supporting a vertically extending spring hinge assembly, a support column mounted on the spring hinge assembly and inclinable relative thereto, and a seat assembly disposed on the support column. A pair of spaced stabilizing members slidably and pivotally mounted to the support column rotate with the seat assembly and support column, thereby supporting the seated user against backwardly directed inclinations while allowing forward and lateral inclinations, regardless of the rotated position of the seat.

Abstract: A single-legged chair comprising a support post and a seat mounted on the support post at a predetermined position thereof so as to constitute a leg portion by a lower part of the support post below the seat, the general plane of the seat lying at an angle of 70.degree. to 85.degree. with respect to the support post at least when the chair is in use. In use, the seat lies virtually horizontally as the leg portion stands on the ground or floor in an inclined posture.

Abstract: A chair structure having at least one seat adjustable in elevation, is disclosed. The structure has particular use as a posing stool for use in a photographic studio or in the field. At least one seat is adjustably secured on an elongated, angularly elevated support member so as to be quickly and slidably located to any selected elevation on that support.

Abstract: A mobile lounge is provided consisting of a base frame having foldable legs attached thereto and a seat section and back section pivotally attached with respect to the base frame. The foldable legs, seat section and back section are all foldable against the base frame to form a compact unit for storage or transport.

Abstract: An automotive seat is disclosed which comprises a vertically movable seat cushion and a fixed seat back and which is capable of closing a spacing produced between the seat cushion and seat back when the seat cushion is lowered. In the automotive seat, an expandable and contractible resilient member is disposed in the portion of the seat cushion to which the lower end of the seat back faces and the resiliency of the resilient member is utilized to close the spacing between the seat cushion and seat back.

Abstract: A vehicle seat which is adjustable both with regard to its height and angle of inclination has front and rear height mechanisms which can be operated independently of one another. Each of the height adjustment mechanisms has at least one lever, which levers are pivotable about an axis running in the lateral direction of the seat. The upholstery support of the seat is supported on support points of these levers, which lie at a distance from their pivot axes. The front and rear height adjustment mechanisms are connected with a coupling drive, which, when the front height adjustment mechanism is activated limits the height adjustment of this front height adjustment mechanism, and when the rear height adjustment mechanism is activated, the height adjustment of the support point thereof is transferred to the support point of the front height adjustment mechanism.

Abstract: An invalid chair (10) has a seat (28) which rises (under spring or other power) at the front (36) as well as at the back (38) to assist the occupant to stand. The seat (28) is mounted by means of a mechanism (30) comprising two pairs of tracks (40,46) on the frame (12) and seat (28) respectively, two pairs of levers (50,62) forming a scissor-like linkage (76) with lever ends (52,64) carrying respective rollers (54,66) running in the tracks (40,46), and torsion springs (78) to provide the force urging the seat (28) upwardly. A latch mechanism (102) is provided to latch the seat (28) down. It can be released by a sitting occupant operating a manual device (114) under one arm (18). When the seat (28) rises, the back (38) rises further than the front (36).

Abstract: A height adjusting device for an automotive seat which is actuated by rotation of a drive rod through a gear and link mechanism. The seating height adjustment is locked and unlocked by means of a stopper and lock gear mechanism. A lock releasing means is provided in the stopper and lock gear mechanism such that raising and lowering of an operation lever causes the disengagement of the stopper from the lock gear though the lock releasing means to permit a desired higher or lower seating height adjustment, without any other special operations. The lock releasing means comprises a wire member and release plate.

Abstract: A height adjusting device for an automotive seat which is actuated by rotation of a drive rod through a gear and link mechanism. The seating height adjustment is locked and unlocked by means of a stopper and lock gear mechanism. A lock releasing means is provided in the stopper and lock gear mechanism such that raising and lowering of an operation lever causes the disengagement of the stopper from the lock gear though the lock releasing means to permit a desired higher or lower seating height adjustment, without any other special operations. The lock releasing means comprises a wire member and release plate.

Abstract: A booster seat has provisions for accomodating a child in a number of different height positions. The booster seat comprises an open-sided base and a seat piece. The open-sided base has a forward channel and a back channel in each of two side supports. A seat of vertically spaced substantially level ledges are found in the channels, vertically offset from one another. The seat piece has a forward protrusion and a back protrusion on each side edge. The protrusions are vertically offset a distance substantially equal to the offset distances between the ledges so that when the protrusions engage the ledges in the base, the seat piece is substantially horizontal and secured in the open-sided base.

Abstract: A chair with continuously height adjustable seat, comprising a frame having a pair of guide portions and a seat movable along the guide portions and capable of being fixed to the guide portions.The frame comprises an outside frame and an inside frame both of which are inverse-U shaped pipe frames, and parallel portions of their both sides serve as the above guide portions.The seat has a pair of support members of which rear portions are inserted in the gaps between the outside frame and inside frame, and each rear portion has a pair of rear stoppers having rubber-made covers and a pair of front stoppers, so that those stoppers securely grip the pipes of guide portions when user sits on the seat.The pipes in the guide portion have oval cross section longer in lateral direction.Clamping force of the stoppers is improved and right and left side stopper's group are balanced in clamping force.

Abstract: A chair is equipped with a seat rest cushion and support and a separate back rest cushion and support. The cushions are mounted on the chair frame and interconnected by a mechanism which permits swinging the back rest cushion downwards to a knee rest position while tilting the seat rest cushion forward to enable a person to assume a knee rest position on the chair. Also, further adjustments of the seat rest cushion to act as a back rest and the knee rest cushion to act as a seat rest provides a lounge chair. All of this out of the same original chair. Additional embodiments provide an additional cushion for a person while in a knee rest or lounge position of desired.

Abstract: A tilting seat having a base for supporting the seat on the floor and a stem extending upwardly from the base, either integrally or separably from the base, the seat being arranged such that it tilts about a tilting axis passing through the base such that a user can tilt the seat forward when in a working position. The base may be a turntable.

Abstract: A low effort high mechanical advantage occupant-operated rotary lever near one arm rest of a folding wheelchair is connected through a short cable to a longitudinal seat frame member of the wheelchair. Manual rotation of the lever in one direction effects narrowing of the wheelchair sufficiently to allow passage through restricted areas.

Abstract: The invention relates to an adjustable seat or cushion which can be used by a chiropractor to bring relief to sufferers of low back pain or sacroiliac problems. The seat cushion includes a base and a pair of side-by-side cushion portions. An adjusting mechanism is provided in one cushion portion so that the elevation of that cushion portion relative to the base can be adjusted. In this manner a differential loading can be placed on the spine of a patient, by raising one hip relative to the other, so as to relieve pressure in the vertebrae and thereby reduce pain.

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.

Abstract: A wheelchair capable of being constructed in several different sizes from components of standard size in order to permit users of different sizes and users with one or more handicaps to utilize such wheelchairs. The wheelchair includes a main frame and a foot support assembly which can be telescopically adjustably affixed to the main frame. In addition, a seat section can be telescopically adjustably affixed to the main frame such that the seat is located at a selected height and the foot support section can extend outwardly from the frame for a selected distance to accommodate users of differing height. The rear wheels are positionally mounted with respect to the main frame such that the rear wheels can be located in several different positions in order to change the overall center of gravity and the wheelbase of the wheelchair. In this way, the wheelchair can be used for conventional wheelchair movement, as well as for athletic activities.