Abstract: A seating unit includes a base, a reclineable back, a seat, and a control operably supporting the back and the seat on the base for synchronous movement between upright and recline positions. The control includes a pair of flexible support members and a link that combine to operably support the seat and back for synchronous movement on the base upon recline, which provides ergonomic non-shearing support for a seated user during recline. The back and seat each include perimeter frames, parallel resilient support members extending between side frame sections of the perimeter frames, and covers covering the resilient support members for distributed support and aesthetics. By this arrangement, the flexible member and the link move the one component along a defined path during recline of the back, and the seat and back also provide ergonomic support, both during recline and without recline.

Abstract: A foldable and storable seat for a vehicle is disclosed. The vehicle seat includes a seat cushion pivotally supported at a rear portion thereof to a vehicle floor by a pair of spaced apart base brackets, cooperating members for causing a forward portion of the seat cushion to be releasably supported to the vehicle floor, a seat back pivotally supported to the seat cushion, recliner devices for releasably locking the seat back relative to the seat cushion, the seat cushion and the seat back being foldable so as to be put together when the seat back is released from the seat cushion by the recliner devices, and a linkage mechanism mounted to the seat cushion, the linkage mechanism including a first linkage section for causing the recliner devices to be actuated synchronously with pivotal movement of the vehicle seat, and the first linkage section being coupled to one of the base brackets and the recliner devices.

Abstract: A seat (11) having a seat cushion (12) and a squab (16), the seat (11) being adjustable between a first configuration adapted to provide seating accommodation for a user and a second configuration adapted to provide leaning accommodation for a user, wherein in the second configuration, the squab (16) is positioned forwardly of its position in the first configuration and substantially above the forward most position of the seat cushion (12).

Abstract: The structure of the seat proper of a vehicle seat comprises: a frame for a seat proper, the frame including a side cheek plate; and a coupling system comprising a link mounted to pivot on a base to enable the seat proper to move at least vertically relative to said base. The coupling system has a first latch surface. The seat structure further comprises an anchoring element provided with a second latch surface. The anchoring element is mounted to move on the cheek plate between a locked position and an unlocked position.

Abstract: In the case of a fitting system for a vehicle seat (1), in particular for a motor vehicle seat, having at least one fitting (15, 35, 45) and a structural part (11) on which the fitting (15) is to be fixed, the fitting parts are substantially disk-shaped, can be rotated relative to each other, are axially held together by a clutch ring (19) arranged along the periphery, and the clutch ring (19) is designed in a manner such that it is integrated in the structural part (11).

Abstract: A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and/or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and/or the back. In one form, the flexible supports are integrally molded with the center section of the motion control.

Abstract: A vehicle seat includes a lower seat part that includes a seat cushion and a backrest, the backrest connected to the seat cushion such that the backrest can rotate about a first axis. The seat cushion is configured for movement between a use position and a loading position by rotating the seat cushion through approximately 180° about a second axis parallel to the first axis. The seat further includes a first lever and a second lever for defining the movement between the use position and the loading position. The first lever and second lever are coupled to the lower seat part at a first location and a second location. The first location is closer to the front in relation to a direction of travel as compared to the second location and the first lever is positioned essentially identically both in the use position and in the loading position.

Abstract: A foldable and storable seat for a vehicle is disclosed.

Abstract: A seating unit includes a base, a reclineable back, a seat, and a control operably supporting the back and the seat on the base for movement between upright and recline positions. The control includes a pair of flexible support members and a link that combine to operably support the seat and back for synchronous movement on the base upon recline. The flexible support member is stiff in a vertical direction for carrying a combined weight of the one component and of the seated user, but flexible in a horizontal direction to permit a swinging movement of its ends upon recline. The link is rigid and pivoted to the base for movement about a horizontal axis and also pivoted to the one component. By this arrangement, the flexible member and the link move the one component along a defined path during recline of the back.

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 tiltable seating frame (10) for selectively positioning seating in a wheelchair, in which a seat platform (12) has opposing sides (18) that each extend to an arcuate distal edge (20) and each side defines an arcuate slot (22) parallel to the distal edge. A base (14) has opposing sides (70) that receive pairs of front and rear rollers (72, 74) on which the distal edges (20) travel. Each side (70) also receives a guide roller (76) attached intermediate and vertically spaced relative to the front and rear rollers (72, 74). The guide rollers (76) extend through the respective arcuate slot (22) of the seat platform (12), to guide the movement of the seat platform (12) relative to the base (14).

Abstract: A four legged or sled chair comprising a frame structure, a seat mounted between the frame structure and connected to it by sliding means. The sliding means comprising a plurality of runners attached to the seat and sliding therein circular ring sector slots located on the frame defining the virtual transverse axis of rotation and the stops of said seat thereto said frame.

Abstract: A tiltable chair is provided with a tilt lock mechanism that can be activated when the chair is at any tilt position, the tilt lock mechanism engaging and locking the chair when the chair moves into the upright, neutral position.

Abstract: Reclining chair includes a leg (4), a seat base (3) and a backrest, with the seat base and backrest being able to be moved and tilted in respect of said leg, for maintaining the center of gravity. A tilting arrangement includes a first body (5) fitted with parallel sides (7, 8), each one of which is provided with slots (11, 12), a second body (6) fitted with parallel sides (9, 10), each of said sides being provided with slots (13, 14), and a shaft in association between each pair of slots of the first and second bodies. The reclining chair also is provided with pinion and racks associated with the shafts. The chair preferentially has a height-adjustable footrest, an also height-adjustable armrest and a tray or work surface.

Abstract: A vehicle seat suspension apparatus that is mechanically simple, inexpensive, occupies little space, and operates effectively with force inputs from any horizontal direction. The preferred embodiment includes a base, an isolator, and a plurality of links connected to both the base and isolator so that the isolator is suspended from the base and can move or swing horizontally in all directions relative to the base. The isolator has an upper plate with two flanges that depend from the plate. The base is positioned directly below the upper plate and between the two flanges. The links are connected to the base and the flanges of the isolator by means of ball and socket connectors that permit the isolator to move in all horizontal directions relative to the base.

Abstract: An adjustable chair (1) includes a chassis (2) onto which the chair is moveably mounted with respect thereto about a common plane normal to the major plane of the chassis, a pair of side walls (8) extending from the chassis and adapted to, in use, prevent accidental access to the space between the chassis and the chair from respective sides thereof, wherein at least one tambour (9,10) is provided between the front and/or the rear of the chair relative to said side, the or each tambour therefore providing a rigid but moveable barrier to accidental entry into the space between the chair and the chassis.

Abstract: A multifunctional chair comprises a base adapted to rest on the ground; a support frame including a seat part and a backrest part pivotally attached to the seat part; a leg frame supporting the support frame and including a rear leg having a first end pivotally connected to the backrest part and a second end pivotally connected to the base; and a power-operated telescopic device including a telescopic member pivotally connected to the seat part and being operable to maintain the seat part at a level lower than said backrest in a normal position providing a chair function, or to move the seat part to a first raised position in which the seat part together with the backrest part are placed in a substantially horizontal position, or to a second raised position in which the seat part together with the backrest part are inclined at substantially the same inclining angle.

Abstract: A recliner is suited for airplane mechanics and the like who need seating and backrest support at various heights. A rectangular base has removable caster-type wheels. A rectangular table frame is supported above the base by a pair of scissor-type leg assemblies with adjustable height bracket, slot and pin subassemblies and/or lift assist assemblies. The table frame has a fixed seat cushion. A tiltable backrest can be supported by a slotted cam assembly or other mechanical and/or hydraulic assemblies.

Abstract: A reclining chair includes a securing mechanism used for releaseably securing an angularly displaceable back; the back has a support rod pivoted thereto; the mechanism includes first and second rotary shafts, first and second pedals and first and second reels respectively secured on the shafts, a string wound onto the first reel at one end, and onto the second reel at other end for effecting simultaneous rotation of the shafts, and a securing element near to the support rod and connected to the second shaft; the securing element is formed in such a way as to be capable of securing the support rod in position immediately after it is turned to a first position by depressing the first pedal, and capable of releasing the support rod for the back to be steplessly adjusted immediately after it is turned away from the first position by depressing the second pedal.

Abstract: A seating device including a seating unit movably suspended relative to a primary frame so that an individual can grasp at least one handle connected to the primary frame to create desired motion between the seating unit and the primary frame. A lock bar controlled by the individual is selectively operable to engage an element of the seating unit to prevent motion between the seating unit and the primary frame. The primary frame may be supported on wheels to form an exercise wheelchair.

Abstract: A chair is operable between a seating position and a rise-assist position. The chair comprises a base; first and second legs; a seat pivotally connected to the first and second legs; and a back pivotally connected to the seat. The chair further comprises first and second members pivotally connected at a first end to the legs, and pivotally connected at a second end to the back. At least portions of the legs, first and second members, back and seat form first and second four-bar linkages, respectively. At least one biasing member is pivotally connected at a first end to one of the base and at least one of the legs and pivotally connected at a second end to at least one of the four-bar linkages. The at least one biasing member operates to assist movement of the chair between the seating position and the rise-assist position.

Abstract: A rocking chair has a flexible joint between a chair base and a chair component permitting rocking action. The flexible joint includes a housing with a plurality of internal surfaces. A plurality of compressible rods are disposed within the housing and a rigid member extends among the rods to engage the rods against the internal surfaces of the housing. The rigid member is attached to either the chair base or the chair component while the housing is then attached to either the chair base or the chair component whichever is not attached to the rigid member.

Abstract: A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and/or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and/or the back. In one form, the flexible supports form leaf-spring-like beams with resiliently bendable ends that flex in a slightly angled fore-aft direction to provide a predetermined synchronized path of movement of the seat and back.

Abstract: A frame of a motor vehicle seat with a longitudinal guide (20), a seat carrier (26), a front pair of oscillating cranks disposed between the longitudinal guide (20) and the seat carrier (26), and a padding support for a seat padding. A pinion (48) is rotatably disposed on one of the oscillating cranks (22, 23), an actuator (71) being associated with the pinion. A pivot unit (54) is disposed between the two oscillating cranks (22, 23) and is rotationally linked to the two oscillating cranks (22, 23) so as to be pivotal about an axial line. The pivot unit (54) is provided with a sector gear (62) that is centered on the axial line and meshes with the pinion (48), and an adjusting arm (64) is provided which is disposed between the pivot unit (54) and the padding support (30) so that the height of a front edge of the padding support (30) is adjustable by adjusting the sector gear (62).

Abstract: This invention relates to a bed for accommodating heavy persons. The bed is particularly for use in hospitals, where heavy patients have to be treated. The invention provides a bed comprising a frame; a central support section mounted on the frame; two opposite end support sections, one being a head section and the other being a foot section, each mounted for pivoting movement relative to the central section; and drive means for driving the end support sections for pivoting movement relative to the central section; wherein the foot section has a platform which extends at an angle to the plane of the section, and the foot section can pivot to a position where the platform is substantially at ground level. In a particularly preferred embodiment the central section is mounted for pivoting movement about a pivot axis at or near to its edge adjacent the foot section and further comprises drive means for driving the central support section for pivoting movement about said pivot axis.

Abstract: The stylish task chair includes a base with casters, a mounting plate, a seat frame, a back frame, a pair of springs and a seat and backrest. The frames are formed of steel wire of seven-sixteenth inch diameter. The chair is formed by welding the springs to the seat frame and the mounting plate and by welding the back frame to the mounting plate, the back frame being contiguous with the springs. A seat panel is fastened to the seat frame and a backrest panel is mounted to the back frame. Two horizontally disposed steel wires are welded to the back frame and support armrests. The spring allows the rearward portion of the seat to pivot and the cantilevered back frame allows the backrest to flex, these pivoting and flexing movements being independent of each other. The steel wire offers comfort and an airy open look. Seat and backrest cushions may be connected to the panels.

Abstract: An adjustable chair(1) includes a .chassis(2) onto which the chair is moveably mounted with respect thereto about a common plane normal to the major plane of the chassis, a pair of side walls (8) extending from the chassis and adapted to, in use, prevent accidental access to the space between the chassis and the chair from respective sides thereof, wherein at least one tambour(9,10) is provided between the front and/or the rear of the chair relative to said side, the or each tambour therefore providing a rigid but moveable barrier to accidental entry into the space between the chair and the chassis.

Abstract: A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and/or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and/or the back. In one form, the flexible supports form leaf-spring-like beams with resiliently bendable ends that flex in a slightly angled fore-aft direction to provide a predetermined synchronized path of movement of the seat and back.

Abstract: A chair has a seat connected to a support leg in an up and down angularly displaceable manner, elastic elements for propping up a rear end of the seat to a higher position, and a mechanism for limiting position of the seat when the seat seats people; the mechanism has an adjustment rod, a gear turnable together with the adjustment rod, an elastic plate for engaging the gear so as to prevent rotation of the gear when the adjustment rod isn't operated, and eccentric cams for holding the seat at desired position when the chair seats people; the cams can turn together with the adjustment rod, and are each formed with a stopping edge having several sections; thus, the depressed position of the seat, i.e. the position when the seat seats people, is decided by the position of the cams, and the seat can move accordingly when the sitter leans forwards.

Abstract: A seat assembly (10) for use in an automotive vehicle comprises a seat back (34) pivotally connected to a seat cushion (32) by a pair of recliner assemblies. The seat assembly is supported by and above the floor of the vehicle by a pair of center pivot assemblies (56, 58). The seat cushion is releasably supported by opposing sidewalls of the vehicle by front latch assemblies (60, 62). The recliner assemblies (52, 54) provide pivotal movement of the seat back (34) relative to the seat cushion (32) between an upright seating position and a forward folded flat position against the seat cushion. With the seat assembly in the folded flat position, the latch assemblies (60, 62) may be released to unlock the seat cushion from the sidewalls and allow the seat assembly to rotate about the center pivot assemblies (56, 58) from the folded flat position to a stowed position recessed within a storage cavity (16) within the floor of the vehicle.

Abstract: A rocker mechanism is provided for implementation with a chair assembly to enable forward and rearward rocking thereof. The rocker mechanism includes upper and lower castings resiliently interconnected by a pair of leaf springs extending at an angle therebetween. The leaf springs are assembled between the upper and lower castings to define first and second effective lengths of each leaf spring for providing first and second spring rates of each leaf spring. In this manner, rocking motion in a first direction may be more difficult than rocking motion in a second direction. Further, the angular configuration of the leaf springs between the upper and lower castings enables maximization of the lengths of the leaf springs within the rocker mechanism.

Abstract: According to the invention there is provided and adjustable chair (1) including a chassis (2) onto which the chair is moveable mounted with respect thereto about a common plane normal to the major plane of the chassis, a pair of side walls (8) extending from the chassis and adapted to, in use, prevent accident access to the space between the chassis and the chair from respective sides thereof, CHARACTERISED IN THAT at least one tambour (9, 10) is provided between the front and/or the rear of the chair relative to said side, the or each tambour therefore providing a rigid but moveable barrier to accidental entry into the space between the chair and the chassis.

Abstract: A control for a seat, and a seat in combination with the control and a base, said control comprising an upper and a lower arm pivotally joined, with a flexure extending as a cantilever between them, such that a contactor contacts the flexure, and both permits and limits the tilting movement of the seat.

Abstract: The invention relates to an apparatus for facilitating, in handicapped patients, undressing, dressing and access to body parts between the waist and knees of the patient. The apparatus includes a seat (20) and a back support (10) which between them form an open region (11) in which a person located in the apparatus is not supported. The seat and the back support are disposed to be displaced between positions in which the person is placed in positions where the major proportion of the patient's weight is carried by the seat or in which the major proportion of the patient's weight is carried by the back support.

Abstract: The present invention concerns an apparatus for adjusting, without rails, the vertical and longitudinal position and the inclination of a vehicle seat (1) relative to a vehicle floor (4). The apparatus according to the present invention has at least two pivot levers (10, 14), spaced apart from one another in an adjustment direction (B), that are articulated respectively on the vehicle seat (1) and on the vehicle floor (4) by way of pivot pins (12a, 12b, 12c, 12d) extending parallel to one another. The pivot pins (12a, 12b; 12c, 12d), arranged on the vehicle seat (1) and on the vehicle floor (4), of at least one of the pivot levers (10, 14) are lockable independently of one another, the pivot lever (10, 14) having the lockable pivot pins (12a, 12b, 12c, 12d) comprising an additional pivot pin (12e) extending parallel to the pivot pins (12a, 12b, 12c, 12d) and thereby being subdivided into two lever segments (14, 16) joined in articulated fashion to one another.

Abstract: The present invention relates to apparatuses and methods for supporting a human body during intimate activities. The apparatuses include a base connected to an adjustable frame and one or more support surfaces for at least partially supporting the human body. The frame includes a main rail connectable to one or more rails arranged to bear weight of the support surfaces and constructed to displace the support surfaces to selected positions.

Abstract: The invention relates to a seat (1) for an aircraft comprising a squab (2), a backrest (3), a leg rest (4), a support structure (5) for the squab (2) and the backrest (3), and a fixed rear separation shell (13). The support structure (5) or the squab (2) moveable in translation in a direction substantially perpendicular to the backrest (3) in the vertical position. The seat (1) is situated in a space lying between a fixed front separation shell (12) and a fixed rear separation shell (13). The movements of each of the components (2, 3, 4) of the seat are independent of each other and the fixed separation shells (12, 13).

Abstract: A seat suspension system includes a first seat (e.g., a base) member and a second seat (e.g., a seat) member preferably overlying the first seat member. At least one spring (e.g., elastic or rubber) mount is interposed between the first and second seat member. The at least one elastic mount provides a projected elastic center spaced from (preferably located above) the second seat member such that the second seat member is pivotable about the projected elastic center. Embodiments describing seat suspension systems having a single focalized mount or a plurality of spaced apart, focalized mounts are included.

Abstract: A chair including a frame, a seat pivotally mounted on the frame, a spring construction effectively positioned between the seat and the frame, a first selectively actuatable latch positioned between the seat and the frame effective to maintain the seat latched in a less inclined position on the frame, a second selectively actuatable latch positioned between the seat and the frame effective to maintain the seat latched in a more inclined position on the frame against the bias of the spring construction, a seat back pivotally mounted relative to the seat, a leg rest pivotally mounted on the frame and movable between a retracted stowed position and extended positions, a cable secured to the leg rest for selectively releasing the leg rest from the retracted stowed position, a leg rest extension mounted on the leg rest, and a foot rest mounted on the leg rest extension.

Abstract: A foldable tubular rocking chair has inverted U-shaped elements secured between its front legs to give stability and to serve as a stop for the crosspiece of the pivoting arm unit when the occupant leans forward during launch. Arms have forward and upward handles to help occupant urge the arm unit down and raise herself to erect condition.

Abstract: A vehicle seat leveling system for adjusting the angle of a seat to compensate for the natural road angle. The vehicle seat leveling system includes a first spacer having a first slot and a second slot, and a second spacer having a third slot and a fourth slot. The first spacer and the second spacer are positioned between the support base of a seat and the floor of the vehicle to achieve the desired side angle to compensate for the road surface side angle. The upper surfaces of both the first spacer and the second spacer have approximately the same angle ranging between 0.5-5.0 degrees. The first spacer and the second spacer may be comprised of a single unit.

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 vehicle seat, in particular a motor vehicle seat, has a bearing device (11) between two components (7, 9) which are at least slightly moveable relative to each other. The bearing device (11) has at least one elastic fastening element (21) for connecting the two components (7, 9) transversely to the direction of movement.

Abstract: A chair including a frame, a seat pivotally mounted on the frame, a spring construction effectively positioned between the seat and the frame, a first selectively actuatable latch positioned between the seat and the frame effective to maintain the seat latched in a less inclined position on the frame, a second selectively actuatable latch positioned between the seat and the frame effective to maintain the seat latched in a more inclined position on the frame against the bias of the spring construction, a foot rest pivotally mounted on the frame and movable between retracted and extended positions, and a cable secured to the foot rest for selectively retracting the foot rest to the retracted position.

Abstract: A reclining leisure chair includes a base frame, a seat frame, a backrest frame, a hassock frame, a driving device, and a link rod. The driving device enables the seat frame and the backrest frame to be adjusted for reclining at the same time. The link rod is pivotally fastened at one end to the backrest frame, and at the other end with a pivoting portion of the seat frame. In conjunction with a control rod of the seat frame, the link rod enables the backrest frame to be adjusted for reclining independently. The hassock frame is pivoted with the link rod.

Abstract: Seating such as chairs and groups of chairs which include a base, a support for an occupant, and a control mounting the support to the base which optionally can enable a rocking motion for the support, and a control for this purpose. A plurality of seating elements and other furniture items can be supported on a single beam.

Abstract: A removable automobile vehicle seat with a tilting seat pan has at least one mechanism for connecting the front of the seat to the floor of the vehicle. The mechanism has an anchoring foot including a device for positioning the foot on an anchoring part that is joined to the floor. A lock pivots on the foot to engage with the anchoring part in a locking position such that the foot is immobilized on the floor. A lug connects a frame of the seat pan with the foot, the connecting lug being joined to the seat pan frame and mounted on the foot to pivot around a transverse axis. This allows the seat pan to pivot between a horizontal normal utilization position and a tilted forward position.

Abstract: A chair includes an actuator having an actuator button disposed on top, a base secured on the actuator, a spring engaged in the base and having an actuator arm engaged on the actuator button for actuating the actuator button to release the actuator. A barrel is rotatably secured to the base. A bar is pivotally and adjustably secured to the base and adjustable relative to the base at any selected angular position. A latch is slidably engaged in the base and selectively engaged with the bar for adjustably securing the bar and the seat cushion to the base.

Abstract: A chair including a frame, a seat pivotally mounted on the frame, a spring construction effectively positioned between the seat and the frame, a first selectively actuatable latch positioned between the seat and the frame effective to maintain the seat latched in a less inclined position on the frame, a second selectively actuatable latch positioned between the seat and the frame effective to maintain the seat latched in a more inclined position on the frame against the bias of the spring construction, a foot rest pivotally mounted on the frame and movable between retracted and extended positions, and a cable secured to the foot rest for selectively retracting the foot rest to the retracted position.

Abstract: A seat comprises a base assembly adapted to be fixed to the body of the vehicle, an articulated support assembly comprising front and rear support links for a seat cushion of the seat each of which has two ends articulated about axes which are respectively fixed relative to the seat cushion and to the base assembly, devices for adjusting the angular position of the support links relative to the seat cushion, and devices for controlling the position of a seat back of the seat relative to the seat cushion. The control devices comprise a convex or concave articulated quadrilateral, which has four corners, a first corner is connected to the seat cushion and the second and fourth corners are connected to the seat back.