Abstract: The present invention relates to a vehicle seat assembly having an accessory system and method of making the same. In at least one embodiment, the vehicle seat assembly comprises a seat cushion, a seat back having a top, and a bottom connected to the seat cushion such that the seat back is extendable in a generally upright position. The seat back comprises a seat frame and a pad supported by the frame. The seat assembly includes at least one support structure on the rear surface of the seat back and extending over at least 40 percent of the length or width of the seat back. The support structure is configured to selectively receive at least one vehicle occupant accessory having an attachment member.

Abstract: The present invention relates to task chairs that support the body of the user in healthy positions while the user performs various tasks over extended sitting periods and that provide independent and independently adjustable support to the lower and the upper back.

Abstract: A child seat includes a main body having a seat portion and a backrest portion with a hole therein, a sliding member disposed at the backrest portion to cover the hole and having webbing inserting holes, and a guide rail mounted vertically on a rear side of the main body. A movable body is attached to the sliding member to move along the guide rail. The movable body is disposed on the rear side to be operable from a side of the backrest portion.

Abstract: A controller module for a wheelchair automatically, automatedly adjusts position of the wheelchair seat with respect to the wheelchair base. The wheelchair seat is pivotally connected to the wheelchair base, and the seat is moveable with respect to the base by a powered actuator. The controller module includes a microprocessor connected to the powered actuator. The microprocessor controls operation of the powered actuator, such as by varying power to the actuator. A sensor, such as a 3-axis sensor, is connected to the microprocessor. The sensor senses seat position and signals the microprocessor of the position. The microprocessor performs a programmed sequence, to periodically adjust the seat position when the wheelchair seat is occupied. The signal from the sensor is feedback to the microprocessor for operations according to the programmed sequence. The controller module includes interfaces for use in making selections among options for the programmed sequence.

Abstract: A back rest for a chair with a back support and a back surface secured to the back support and able to swivel about a two-axis joint. The joint has a joint plate connected to the back surface, an element made of an elastic material that supports the joint in a ground position, and a chamber to accommodate the elastic element, connected to the back support. The joint plate is arranged in the receiving chamber between two elements made from an elastic material, holding the joint in a ground position and each being supported against the receiving chamber, and it can swivel about the two swivel axes. When the joint is placed under load, the two elastic elements are only subjected to compression. There are no tension-loaded connections which break under loading and can result in the joint falling apart.

Abstract: A controller module for a wheelchair automatically, automatedly adjusts position of the wheelchair seat with respect to the wheelchair base. The wheelchair seat is pivotally connected to the wheelchair base, and the seat is moveable with respect to the base by a powered actuator. The controller module includes a microprocessor connected to the powered actuator. The microprocessor controls operation of the powered actuator, such as by varying power to the actuator. A sensor, such as a 3-axis sensor, is connected to the microprocessor. The sensor senses seat position and signals the microprocessor of the position. The microprocessor performs a programmed sequence, to periodically adjust the seat position when the wheelchair seat is occupied. The signal from the sensor is feedback to the microprocessor for operations according to the programmed sequence. The controller module includes interfaces for use in making selections among options for the programmed sequence.

Abstract: A backrest adjusting device includes a fixing plate fixed to a chair seat. A block is pivotably received in a groove in a coupling seat fixed to the fixing plate. A portion of the fixing plate is received in a recess of a positioning board including a vertical slot and a plurality of vertically spaced slanted positioning holes in communication with the vertical slot. A positioning peg on the coupling seat is biased by an elastic element into one of the positioning holes. An engaging board is received in the recess and includes a sliding groove for slideably receiving a guide plate through which the peg extends. A back board is fixed to the positioning board and to a backrest of the chair. The positioning board is vertically movable to adjust a height of the backrest.

Abstract: A ratchet-type adjustment device for the ratcheting displacement of an adjustment body with respect to a fixed base element having an oblong actuating element, where the actuating element can be displaced along linear toothed portions, which are fitted to the adjustment body on either side of the actuating element, and latched into the first linear toothed portion, acting as driving toothed portion, by first ratchet elements, the adjustment device furthermore comprising at least two second ratchet elements mounted pivotably on the fixed base element, which ratchet elements can be latched into the second linear toothed portion, acting as blocking and braking toothed portion, to block a displacement movement of the adjustment body with respect to the fixed base element.

Abstract: A seat reclining apparatus includes an internal gear, an external gear, an eccentric drive mechanism, and a base plate. The internal gear is secured to a seatback arm. The external gear includes an external tooth portion being in meshing contact with the internal gear, the external tooth portion having a smaller number of teeth than the internal gear. The eccentric drive mechanism rotates the external gear with respect to the internal gear in meshing contact with the internal gear. The base plate is secured to a seatcushion arm. The base plate includes an internal tooth portion press-fitted to the external tooth portion of the external gear. The internal tooth portion of the base plate includes a part press-fitted to the external tooth portion of the external gear and a part loose-fitted to the external tooth portion of the external gear.

Abstract: An ergonomic chair including a seat support structure with a seat bottom and seat back supported by the seat support structure. The seat bottom is shortened to accommodate the buttocks and ischia, with no weight-bearing on the thighs. The seat back has an upper portion which protrudes forward greater than the lower portion with a sudden transition to provide an innate lumbar support.

Abstract: The vehicle seat comprises a seat back, a seat proper, and a support mounted on a vehicle floor. The seat proper is connected to the support via a front link leg. The seat back is connected to the support via a rear link leg and via an intermediate link leg. A rear portion of the seat proper is mounted to pivot relative to the seat back.

Abstract: A passenger seat includes a frame, a bottom, a back, and a headrest, and incorporates a cylindrical motion support member. The support member includes a stationary member carried by the passenger seat, including a concave surface having a cylindrical curvature. A moveable member has a convex surface with a cylindrical curvature disposed in contact with the concave surface, and a support surface for supporting at least a part of a passenger's body The moveable member is selectively positionable along the concave surface. In another variation, the seat back and/or seat bottom is moveable in a conical motion.

Abstract: The invention relates to a seat assembly for a motor vehicle seat, comprising a seat frame, which defines a seating surface for a motor vehicle occupant and pivotally mounted backrest, which can be folded onto the seating surface about a pivoting axis. According to the invention, the pivoting axis is displaced along a predetermined path, when the backrest is folded forwards onto the seating surface.

Abstract: A seat restraint configured to be secured to an anchoring tube includes at least one anchoring tube engaging member, and at least one fastening member integrally formed with the at least one anchoring tube engaging member.

Abstract: A chair has a chair body, a rest, an adjusting mechanism for adjusting a height of the rest and including a securing element solidly connected to the chair body and having a free end with a slot, a threaded bolt extending through the slot and screwable into a thread in the rest, and a hand wheel to which the threaded bolt is rigidly connected, so that securing of the rest to the end portion of the securing element in clamping fashion is effected, a clamping sleeve has a throughbore through which the threaded bolt reaches in an assembled state and an end face with diameter greater than a width of the slot, a plurality of detent elements lockingly engageable by the end face of the clamping sleeve, wherein the clamping sleeve or the detent recesses have at least one oblique face, and a pressure-generating device builds up a pressure force between the hand wheel and the clamping sleeve and has at least one force component parallel to the longitudinal axis of the clamping sleeve.

Abstract: A theft protection chair structure for motor vehicles for minimizing the driving space for the driver, includes: a chair having a chair seat and a chair back connected to the chair seat by a pin-jointed structure; a chair driving structure for driving the chair to go forward or backwards toward the driving space, to form a theft protection or a sitting state; and an angular adjustment device for adjusting the slant angle between the chair back and chair seat. When the chair driving structure is in a theft protection state, the angular adjustment device enables the angle between the chair back and chair seat to be an acute angle, then be locked and fixed. Thus, the theft protection effect is provided via the angular adjustment device and chair driving structure to reduce the driving space.

Abstract: A backrest elevation adjustment assembly is provided, which is mainly composed of an L-shape member, a sliding member, and a multi-step positioning member. A seat supporting board is attached to the horizontal section of the L-shape member and the sliding member, which is attached to a backrest supporting board, is installed on the vertical section of the L-shape member, surrounding the multi-step positioning member embedded in the vertical section of the L-shape member. The sliding member could be slid up and down along the vertical section of the L-shape member and fixed at a number of pre-determined positions provided by the multi-step positioning member. With the elevation adjustment assembly, a chair's backrest could be adjusted to suit a sitter's specific posture so as to achieve comfortable seating.

Abstract: A backrest adjusting mechanism is angularly disposed between a backrest and a seat of a chair, and includes a main support slidably received in a sleeve member, and a locating gear. The main support is provided on a middle lower surface with a downward projected limiting element and on a middle upper surface with an elastically upward protruded locating element. The sleeve member is provided on a lower surface with a lengthwise guide slot for the limiting element to slide therein, and on an upper surface with locating recesses for the elastic locating element to slide thereinto and hold the main support to an adjusted position. The locating gear includes a shaft turnably extended across the sleeve member, so that a press lug of at least one brake element on the shaft may be turned to firmly press against and hold the main support in place at the adjusted position.

Abstract: An armrest structure includes a tubular support, and an armrest having a tubular end telescopingly engaging the tubular support. A support plate engages bottom walls of the tubular support and the tubular end in a laminar arrangement. A clamping bolt slides through a top hole and into aligned holes in the laminar arrangement, with its head abutting the aligned holes. A clamping handle on a bottom of the bolt is rotatable between a clamping position tensioning the bolt to secure the arrangement, and a release position de-tensioning the bolt. By this arrangement, remaining walls of the tubular support and the tubular end are not deformed even when the clamp is clampingly pressing the adjacent sidewall sections together. An adjustable back with actuator handles at a lower edge of the back, and a seat assembly with fingers that retain an upholstery cover tight against concave areas are also shown.

Abstract: An armrest structure includes a tubular support, and an armrest having a tubular end telescopingly engaging the tubular support. A support plate engages bottom walls of the tubular support and the tubular end in a laminar arrangement. A clamping bolt slides through a top hole and into aligned holes in the laminar arrangement, with its head abutting the aligned holes. A clamping handle on a bottom of the bolt is rotatable between a clamping position tensioning the bolt to secure the arrangement, and a release position de-tensioning the bolt. By this arrangement, remaining walls of the tubular support and the tubular end are not deformed even when the clamp is clampingly pressing the adjacent sidewall sections together. An adjustable back with actuator handles at a lower edge of the back, and a seat assembly with fingers that retain an upholstery cover tight against concave areas are also shown.

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 discloses a seating system that includes a seat back (20) with one or more plastic panels (22) that extend across a lateral distance of the seat back (20). The seat back (20) preferably includes one or more reinforcements (30) attached to the plastic panels (22).

Abstract: A task chair is disclosed, including a base, a seat supported by the base, and a pair of uprights connected to the base and extending upwardly from the seat. A pair of armrests are attached respectively to the uprights, and are selectively positionable along the uprights in a manner in which the height of the armrests along the uprights is adjustable. A backrest is also selectively positionable along the uprights, and the height of the backrest with respect to the seat may be adjusted by moving the backrest upwardly or downwardly along the uprights. The armrests and backrest each include mount sleeves telescopingly slidable along the uprights, each of the mount sleeves including a user-operable adjustment mechanism which includes a lever having a portion thereof selectively engagable with one of a series of holes along the uprights.

Abstract: A head rest for a car seat used to transport a child in an automobile is positionally adjustable vertically along the seat back on which the head rest is mounted. A latching mechanism, actuated by a button at the top of the head rest, is located within the frame of the head rest and includes a releasable latch engagable with the channels slidably supporting the support rails of the head rest. A retainer clip is mounted at the top of the channels to prevent the head rest from being separated from the seat back once assembled thereon. The head rest includes a pair of laterally spaced wings that are pivotally connected to the rear support portion of the head rest to be positionally adjustable relative to the child's head through an angular displacement of approximately 45 degrees. The pivot mechanism is operable to lock the wings in the selected position.

Abstract: A chair includes back and seat portions that include a padded member. Back support rails have opposed ends and include braces connected thereto. One end of the back support rails has notches that define flange portions. The braces traverse a rear surface of the back portion so that opposed ends thereof are conjoined to corresponding ones of the rail ends. A seat support member has a bottom surface and sidewalls extending upward therefrom that have notches formed along a top surface thereof. The seat support member includes inner lip portions. The flange portions are engageable with the inner lip portions, maintaining the back portion at a stable position. A shaft is conjoined to the seat support portion, legs are conjoined to the shaft, and casters are connected to the legs. A mechanism is included for adjusting the back portion forwardly above the seat support member.

Abstract: A distance adjustment device for a chair includes a guide rail, a movable plate slidably mounted on the guide rail, a movable handle pivotally mounted on the movable plate and having a first end detachably engaged with the guide rail, and a fixed handle secured on the movable plate and located opposite to a second end of the movable handle. Thus, the user only needs to hold the push portion of the movable handle and the grip portion of the fixed handle by his one hand to unlock and move the movable plate, so that the distance adjustment device is operated by the user's one hand.

Abstract: In the case of a rotary actuator for an adjuster of a vehicle seat, in particular of a motor vehicle seat, having a manually actuatable operating element (7), a transmission gearing (11) on which the operating element (7) acts when actuated, and an output element (9) which is rotated at least intermittently by the transmission gearing (11) and, during a rotation, drives the adjuster (3), the transmission gearing (11) changing during the actuation by the operating element (7) from a higher transmission ratio to a lower transmission ratio, during the actuation by the operating element (7) the transmission gearing (11) runs through two phases during which the transmission ratios are constant in each case.

Abstract: A chair adjustment mechanism has a pin retaining member (as, for example, a sleeve) with a slot having two laterally spaced pin receptors. Each receptor is partially defined by a peripheral wall of the slot and is further defined by a spring finger that projects along side of the peripheral wall. With this arrangement, a pin may be received through the slot and into a longitudinal slot of a second member (as, for example, a J-bar), which longitudinal slot defines a rack. The pin receptors may be positioned such that with the pin in a first of the pin receptors, it is engaged by the rack. In consequence, the pin retaining member may be moved upwardly with respect to the second member by notching the pin over teeth of the rack against the urging of the spring finger. The top of the longitudinal slot may have a cam surface to cam the pin into the second pin receptor such that the pin is now spaced from the rack. This releases the pin retaining member to be lowered with respect to the second member.

Abstract: The present invention relates to a motor vehicle rear seat with a seat part (2), having an upper side (4), and a seat back (6), having a rear side (12), which faces a clearance behind said motor vehicle rear seat. Said seat back (6) has at least one seat back section (8). According to the invention, said seat back section (8) is designed, such that it can be pivoted from a normal position to a first position, in which the rear side (12) of the seat back section (8) is oriented upwards and, with the upwards-oriented rear side (12), to a second position in the clearance behind the motor vehicle rear seat, such that the upper side (4) of the seat part (2) and the rear side (12) of the seat back section (8) form a loading area. Preferably, a loading plate (18), hinged on said seat back section (8), can be pivoted onto the upper side (4) of the seat part (2) in the second position of the seat back section (8).

Abstract: A backrest depth adjustment mechanism which allows adjustment of the backrest assembly in a front-to-back manner with respect to the seat. The backrest assembly generally includes a backrest frame supporting the backrest. The backrest frame includes opposite end portions, and at least one of the end portions includes a backrest depth adjustment mechanism. The backrest depth adjustment mechanism includes a stationary portion and a movable portion, wherein the movable portion is movable with respect to the stationary portion. An actuator mechanism allows the user to actuate the backrest depth adjustment mechanism to move the backrest to a desired depth position.

Abstract: A ball chair has a seat, a backrest assembly and a ball cushion. The seat has a top face, a passage defined in the top surface of the seat, at least three legs formed on the seat and each leg and a supporting base formed on seat. The backrest assembly mounted on the seat and has a bracket, an angle adjusting device, a locking device and a fixed arm. The bracket has two supporting tabs defined in the bottom of the bracket to abut against the supporting base. The ball cushion is mounted inside the passage in the seat. The ball chair provides functions as adjusting backrest angle and the backrest may be extended for convenient use.

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: The present invention relates to a portable seating device (e.g., portable stadium seat) that includes a seat and a backrest movably interconnected with the seat, and that is generally positionable in both stowed and deployed positions. The backrest also may be selectively movable toward and/or away from the seat, at least when the device is in the deployed position. One embodiment of the device may include a base that is interfacable with a supporting surface on which the device is to be supported, and a mechanism for rotatably interconnecting the seat with the base. Accordingly, the seat may be rotatable relative to the base. Another embodiment of the device may include a stand having a first end that is detachably interconnectable with the seat and/or base, and a second end that may be spaced from the base and interfacable with the supporting surface on which the device is to be supported.

Abstract: A support apparatus is described for use in the field of workstation design. The support apparatus is movably attachable to a seating device to selectively provide both dorsal and ventral support to a seated user. The support apparatus is movable, by a user in the seated position, between the position providing ventral support and the position providing dorsal support. Also described is a method of selectively supporting either the ventral or dorsal side of a user by one apparatus, the apparatus moveable by a user in the seated position.

Abstract: A piece of furniture has a seat back having a front face and a headrest having a front face and positioned above the seat back with the front faces both facing forward. A guide forces displacement of the headrest relative to the seat back in a continuous and synchronous tipping/sliding movement between a lower position with the headrest relatively closely juxtaposed with the seat back and with the front faces generally parallel and an upper position with the headrest spaced above the seat back and the front faces forming a large acute angle. An upholstery cover is stretched as a single piece over the front faces of the headrest and the seat back.

Abstract: A passenger seat includes a frame, a bottom, a back, and a headrest, and incorporates a cylindrical motion support member. The support member includes a stationary member carried by the passenger seat, including a concave surface having a cylindrical curvature. A moveable member has a convex surface with a cylindrical curvature disposed in contact with the concave surface, and a support surface for supporting at least a part of a passenger's body The moveable member is selectively positionable along the concave surface. In another variation, the seat back and/or seat bottom is moveable in a conical motion.

Abstract: A task chair equipped with a mechanism for independently adjusting the height and width of support arms by the manual operation of a single adjustment knob. Each of the support arms includes a first arm portion and a second arm portion that are pivotally coupled by corresponding pivot joints. Each second arm portion carries one of a pair of arm pads. Each second arm portion may be inclined relative to the corresponding first arm portion for inclining the corresponding arm pad relative to a seat plate of the task chair. Each arm pad is joined with the corresponding second arm portion by a coupling mechanism that permits movement of each arm pad with two degrees of translational freedom and one degree of rotational freedom.

Abstract: A back supporting device for a motor vehicle seat includes a pair of hollow left and right sliding rails that are disposed fixedly on two opposite sides of a passenger seat portion disposed immediately behind a driver seat portion. Two slidable elements are received respectively and movably within the left and right sliding rails. Two connecting members are connected respectively and fixedly to the slidable elements, and are disposed outwardly of the left and right sliding rails. Two supporting frames have lower ends connected respectively and pivotally to the connecting members. A backrest is retained on the supporting frames so as to permit the slidable elements to be moved forcibly within the left and right sliding rails. Preferably, the slidable elements are locked respectively and releasably within the left and right sliding rails.

Abstract: A juvenile vehicle seat includes a seat shell having a seat bottom and a back support coupled to the seat bottom. A headrest of the juvenile vehicle seat is coupled to the seat shell for up-and-down movement relative to the seat shell to adjust a height of the headrest above the seat bottom of the seat shell. The juvenile vehicle seat further includes a height-adjustment mechanism arranged to adjust the height of the headrest above the seat bottom. The height-adjustment mechanism is arranged to move between a locked position to prevent up-and-down movement of the headrest and an unlocked position to permit up-and-down movement of the headrest.

Abstract: Healthy task seating is achieved by integrating three dynamics into a unique, dynamically balanced chair design that provides: (a) adaptable design features to accommodate a wide range of body dimensions, (b) a series of independent and adjustable support means to accommodate a wide range of tasks, and (c) means for promoting active seating.

Abstract: A booster seat having seat back carried by a seat bottom. The seat back includes first and second frame members mounted for slidable movement relative to each other. A flexible band interconnects the first and second frame members wherein relative movement between the first and second frame members causes movement of the band relative to the second frame member. A lock is provided for being carried by one of the first or second frame members for engaging cooperation with the band. The lock is reciprocable between a locked position wherein the lock locks the band against movement, and an unlocked position wherein the lock releases the band and allows movement of the second frame member relative to the first frame member, thereby adjusting the height of the seat back.

Abstract: An armrest assembly includes an L-shaped support having a vertical section, a lift mechanism telescopically mounted in the vertical section of the support, a sleeve movably mounted on the vertical section of the support and secured on the lift mechanism to move therewith, and an armrest secured on the lift mechanism to move therewith. Thus, the armrest can be moved on the vertical section of the support upward and downward adjust the height of the armrest so as to fit requirements of different users. In addition, the user only needs to drive the control member to release the movable shaft from the limit plate so as to adjust the height of the armrest easily and conveniently, thereby facilitating the user adjusting the height of the armrest.

Abstract: A device for supporting a seated person, comprising a seat and a support for the lumbar-thoracic transition region, which is connected to the seat, and characterized by an adjustable lumbar-sacral support, which is mounted at a location of a lower side of the support for the lumbar-thoracic transition region. Preferably, an adjustable support is furthermore provided for the thoracic-cervical transition region, which support is mounted at the location of the upper side of the support for the lumbar-thoracic transition region.

Abstract: A safety seatback for mounting to the rear of a watercraft is disclosed. The seatback rotates about the seat of the watercraft from an upright position to a boarding position. In the upright position the seatback prevents the passenger/rider from falling backward from the watercraft. In the boarding position the seatback does not interfere with a passenger/rider attempting to board the watercraft from the water and aids the person boarding the craft from the water. The seatback may be rotated by the passenger/rider from within the water or, in an alternate embodiment, may be remotely operated by the driver.

Abstract: A seating arrangement comprise a seat base. A seat back extends upwardly from the seat base. A backrest is displaceably arranged relative to the seat base between a first, retracted position in which the backrest is substantially in register with the seat base and a second, extended position in which at least a part of the backrest protrudes upwardly beyond a top edge of the seat back. A displacement mechanism is arranged between the seat back and the back rest, the displacement mechanism effecting displacement of the backrest from its first position to its second position.

Abstract: A height-adjustable armrest for a chair includes a body, a coupling seat, and an adjusting device mounted to the coupling seat. The body includes an arm support section for supporting an arm of a user. The body further includes a tubular section having a vertical slot with a plurality of vertically spaced positioning grooves. The coupling seat includes a longitudinal hole so as to be mounted around the tubular section of the body. The adjusting device includes a push button and a positioning member having a positioning section that is releasably and selectively engaged in one of the positioning grooves. The positioning section of the positioning member is disengaged from the positioning grooves when the push button is pushed, allowing adjustment of a height of the body.

Abstract: A multi-stage backrest assembly for a chair includes a support frame, a back support mounted on the support frame, a head support mounted on the support frame, and a waist support pivotally mounted on the back support. Thus, the backrest assembly has a pivotable function so as to fit the curve of the user's body ergonomically, thereby providing a comfortable effect to the user. In addition, the locking tube of the crossbar of the back support is adjustably mounted on the respective support rod of the support frame, so that the back support is adjustably mounted on the support frame to adjust the height of the back support so as to fit users of different statures.

Abstract: A child's chair that may be readily adjusted with regard to the height of the seat bottom, and the position of the seat back relative to the seat bottom. The use of telescoping legs and a slidable support for the seat back allow the chair to be adjusted for positioning according to the needs of a particular child.

Abstract: The present invention relates to a combination of a seat and a backrest supported by a frame, wherein said combination includes means for effecting movement of the seat with respect to the backrest, in such a manner that a person sitting on said seat is subjected to a reciprocating pivoting movement about a substantially vertical axis. The seat comprises two parts, which parts are arranged on either side of a vertical plane that extends at least substantially transversely to the backrest. Means are provided for moving said seat parts to and fro in directions opposed to each other.

Abstract: A support apparatus is provided for use in the field of workstation design. The support apparatus is movably attachable to a seating device to selectively provide both dorsal and ventral support to a seated user. The support apparatus is movable, by a user in the seated position, between the position providing ventral support and the position providing dorsal support. Also provided is a method of selectively supporting either the ventral or dorsal side of a user by one apparatus, the apparatus moveable by a user in the seated position.