Abstract: A shock absorbing seat is provided in a personal watercraft or boat. The seat has an elongated configuration and is mounted at the front end thereof to the hull or other structural member of the watercraft for limited pivoting motion relative to the hull or structural member. A shock absorber assembly which includes a fluid filled cylinder, a piston therein, and a coil spring externally mounted to the cylinder piston combination, is mounted for limited motion relative to the hull or other structural member of the watercraft, and to the seat so as to support at least a substantial portion of the weight of the seat and occupant thereof, and to absorb forces generated between the hull and the seat while the watercraft is in motion.

Abstract: A power lifting and tilting device is more universally adaptable for economic retrofitting to most types of chairs as assists for the infirm. Little or no floor clearance requirements are achieved with power driven rollers traveling oppositely inclined surfaces of the device to produce lifting and tilting action for alighting from and occupying the chair.

Abstract: A convertible wheelchair permits change over from an attended wheelchair arrangement to a self propelled wheelchair arrangement. The wheelchair accommodates both lateral and longitudinal dimensional changes. Further, the seat can pivot relative to the frame, as well as permitting a seat back to tilt relative to the seat portion. In the attended wheelchair arrangement, the rear wheels are simultaneously locked.

Abstract: An arrangement providing a backrest support pillar, particularly, though not exclusively, for an office chair whereby the height of a backrest can be selected by the user in a simple and ready manner using one hand. More particularly an arrangement is contemplated wherein the pillar is adjustable from a maximum length to a minimum length without resistance and is adjustable incrementally from that minimum length and automatically maintainable at a selected length. The invention also provides a seat/back synchronous tilt mechanism for a chair which eliminates the "shirt-lifting" effect of known chairs.

Abstract: A chair seat mounting mechanism includes a stationary base member adapted to be mounted on a chair base, a seat-mounting member that is adapted to be attached to a chair seat and is rotatably attached to the base member by a pivot shaft and springs acting between the base member and the seat-mounting member and biasing the seat to a neutral position intermediate of a forward tilted position and a rearward tilted position. An intermediate member is pivotally attached to the pivot shaft, and at least one first spring is engaged between the intermediate member and the seat-mounting member such as to bias the seat-mounting member relative to the intermediate member toward the neutral position and to permit the seat to tilt forward against the bias. At least one second spring is engaged between the base member and the intermediate member such as to bias the intermediate member relative to the base member toward the neutral position and to permit the seat to tilt rearward against the bias.

Abstract: A narrow seating device or chair including a support caddy having lockable ground engaging caster wheels and a seat portion for a patient undergoing a medical test. The seat portion is detachably mounted on the support caddy and tiltable to a plurality of tilt positions. The seat portion has a convexly curved surface which rests on spaced apart rollers on the upper side of the support caddy to enable tilting. A safety mechanism detachably secures the seat portion to the support caddy, while still allowing for tilting. The safety mechanism includes a flexible steel cable which is reeved around a pulley attached to the curved surface. The ends of the cable are secured to the support caddy. A tension spring and a turnbuckle to adjust spring tension are connected each to a respective one of the ends of the cable. A locking mechanism releasably locks the seat portion in a selected tilt position.

Abstract: An adjustable chair seat, of which the angle of the back frame, the seat width, and the seat depth may be adjusted; the arm rest assemblies can also be turned backwards at an angle of 120.degree.; the side frames can also be turned outwards at a horizontal position so as to provide a user with comfortable and convenient operation and use.

Abstract: An adjustable seating assembly made up of a seating or load-bearing support (2), a back-rest (3), head-rest (5), arm-rest members (4, 4A) and a ground-engaging or support structure (1), all interconnected in such a manner as to allow for selective adjustment of each member in a progressive manner whereby to have the assembly capable of adopting a variety of different in-use configurations so as to satisfy different requirements of users thereof. A foot-rest is also included which is adjustable both angularly (tiltably) and vertically relative to the ground or the like surface.

Abstract: A restraining system for a child comprising in combination a child seat having a foot end and a head end and side edges therebetween, the seat having downwardly extending projections with aligned apertures; a base having a front end and a back end and side edges therebetween, the base having upwardly extending projections with aligned apertures; a cylindrical pivot shaft located within the apertures of the seat and base to allow the pivoting of the seat with respect to the base; a latch rod pivotally secured to the base with a latch mounted adjacent to each end thereof, each latch having a plurality of recesses adapted to receive pins of the seat to thereby secure the seat in any one of a plurality of angular positions; and springs to hold the recesses in contact with the pins.

Abstract: An infant seat having a seating surface positionable between upright and reclined orientations, the seating surface being supported by arms which are connected to torsion springs in a base, the torsion springs providing a bouncing motion to the seating surface in both the upright and reclined orientations. The base includes a rear support member which pivots between a support position, in which the member is substantially coplanar with the base, and a collapsed or folded position, in which the support member is pivoted adjacent to the seating surface. In a preferred embodiment, the connection between the seating surface and support arms includes a pivot plate pivotally connected to the seating surface and support arms and includes a slot engaged by a shoulder rivet attached to the support arms which defines limits of pivotal movement of the seating surface.

Abstract: A lift chair or elevator chair apparatus for invalids provides a base portion having an inclined upper surface and a sub-frame pivotally attached thereto along a forward edge. A mechanical ram powered by an electric motor pivots the sub-frame with respect to the base and about the forward pivot. The inclined upper surface of the base receives the sub-frame thereon in a fully downward position which defines a reclined position for the user. Pivotal rotation of the sub-frame with respect to the base and upon the pivot to an uppermost position defines the forward most lifting position which aids the invalid in moving from a sitting to a standing position.

Abstract: A reversible seat structure that can be easily moved between two operating positions (facing in opposite directions). The operating mechanism is functional without the necessity for extraneous latches or other hold down devices. In its two operating positions the seat structure is adequately supported by a combination of stabilizer links and pedestal mechanism.

Abstract: A chair having a seat and back adjustment mechanism in which a single handle is operable to hold or release both the seat and the back at selected independent angles. A bank of plates serving the seat and a bank of plates serving the back are interleaved and positioned to be compressed by the handle.

Abstract: A preferred embodiment seat adjuster according to the present invention has a first link which is pivotally connected typically along its rearward end to the vehicle floor. A powered gear is connected to the first link and is meshed with a sector gear which is connected to the forward end of the vehicle seat adjuster. The sector gear is also connected to the vehicle floor. Slidably mounted to the first link is a second link having a sector gear connected to its rearward end. The vehicle seat (or frame) is pivotally connected along its forward end to the second link and the vehicle seat has a powered gear which in meshed with the rearward sector gear of the second link. Longitudinal movement of the seat is provided by a worm gear rotatably connected to the second link and meshed with a rack connected with the first link. Elevation of forward end of the vehicle is accomplished by the powered gear rotatably connected with the first link and meshed with the sector gear connected with the vehicle floor.

Abstract: The present invention relates to a forward recumbent posture pod (10) for supporting the anterior torso of an infant residing therein while allowing for substantially unrestricted movement of the infant's limbs and head. The forward recumbent posture pod comprises a pod (12) slidably secured to one end of an arc-shaped spring (14), with the other end of the spring pivotally secured to a base (20) to space the pod away from the base. An infant rests in a cavity (22) of the pod with the infant's legs projecting downwardly through openings (30). The forward recumbent posture pod is adjustable between a fully upright position in which the infant's weight is primarily supported by a bottom portion (28) of the pod and a fully inclined position in which the infant's weight is primarily supported by an anterior portion (24) of the pod.

Abstract: A recliner mechanism is disclosed for rotating an automobile vehicle seat with respect to the automobile floor. The recliner mechanism comprises a first plate member that is constrained from rotating relative to the vehicle floor and a second plate member that is selectively lockable with said first plate member. The second plate member is rotatable relative to the vehicle floor when it is unlocked from the first plate member and the seat is attached to the second plate member to rotate with the second plate member. An actuator handle is pivotally connected to the second plate member so as to rotate with the second plate member and the vehicle seat. The actuator member actuates an arrangement of linkages to lock and unlock the second plate member relative to the first plate member. Since the actuator handle is connected to the rotating second plate member, the handle will rotate with the seat and second plate member and thus be easily accessible even at the new seat position.

Abstract: A work or office chair having a seat shell which is pivotably arranged on a height-adjustable seat carrier, characterized by the seat shell being spring loaded to oppose tilting of the seat shell from a raised position towards a tilted, lower position. The chair includes a fixing arrangement for fixing the chair in specific tilted positions. One improvement is a spring arrangement for supporting the chair and a toggle arrangement coacting with the spring arrangement for opposing tilting of the chair with the springs of the toggle arrangement and the supporting spring coacting to require a substantial force to cause initial tilting then followed by a gradual force to cause tilting.

Abstract: The present invention provides an apparatus and method of utilization of the same of a manual vehicle seat adjuster with an overcenter locking device for the seat adjuster elevational adjustment mechanism. The seat adjuster of the present invention provides locking of the elevational adjustment mechanism independent of any spring element.

Abstract: A support structure in the form of a seat, for an occupant in a vehicle which also serves as a protective assembly by enclosing the occupant within a hollow interior portion defined in part by an ovoidal shaped shell formed of impact-resistant material wherein the head, torso and lower or underportion of the occupants are essentially surrounded or enclosed so as to prevent severe damage to the occupant in cases of vehicle emergencies such as collision or crash. A closure at least partially covers an access opening to the interior allowing entrance and exiting of the occupant from the protective shell wherein adequate space is provided for viewing through the access opening above and beyond the closure. Additional supplementary features may include a combined audio and speaker assembly so as to provide sound recording, radio reception, etc. to the interior of the shell and the occupant therein.

Abstract: A rotating child's seat for mounting in the seat backrest of a vehicle, which includes a rotating frame having a seat portion attached to one side thereof and a padded back portion secured to the opposite side. The rotating frame is rotatably and adjustably mounted on fixed supports located in a bifurcation provided in the center section of the seat backrest. When located in functional configuration, the seat portion of the rotating child's seat faces forwardly of the backrest at a selected angle determined by a latch mechanism and extends over the rear bench seat in the vehicle to position a child securely in the back seat of the vehicle. When the rotating child's seat is not in use, the latch mechanism is released and the rotating frame can be rotated or pivoted on pivot pins linking the rotating frame to the fixed supports, in order to position the back portion in alignment with the bifurcated backrest to accommodate one or more additional adults in the rear seat of the vehicle.

Abstract: This invention relates to an adjustable chair comprising a frame supporting a seat pivotable with respect to the frame and a back, said chair further comprising a calf support arranged at the forward end of the seat and displaceable between a retracted position in which it is positioned substantially under the seat, and an extended position in which it forms a substantially straight extension of the seat; and a chair adjusting mechanism comprising a drive means provided with a supporting surface, which drive means through a movement such that the seat slides with respect to said supporting surface brings the seat into different using positions so that when the calf support is positioned in its retracted position, the seat forms a less tilted positioned than when the foot support is positioned in its extended position.

Abstract: Armchair structure with independently adjustable back, seat and foot-rest, wherein the back is hinged at one end of the seat frame, and the foot-rest is hinged at the opposite end, the frame itself being hinged at the support structure beyond the center line of its length and towards its end facing the back. Each longitudinal element of the seat frame is provided, at the fulcrum of the back, with a toothing as a rack against which acts the extremity of an angle lever hinged at the support structure in the proximity of the armrest, the actuation of the free end of said lever allowing the disengagement of the lever itself from the rack and the engagement thereof with said rack in the new position taken on by the seat, the angle levers being interconnected in correspondence of the ends that engage with the racks.

Abstract: A latch mechanism for securing a detachable seat to a frame such as that used on a child's swing is comprised of a hook depending from a hub on each side of the seat, and a U-shaped collar to receive the hub with a flange to engage the hook. As the hook slides along the flange, the angle of the seat with respect to the frame is varied, and a retractable bolt secures the hook at either of two positions along the flange.

Abstract: A seat such as an office chair comprises a seat carrier assembly carrying an adjustable seat portion and also an adjustable backrest portion. The inclination of the backrest portion can be adjusted by means of a first gas spring unit while inclination of the seat portion is adjusted by means of at least one and preferably two second gas spring units. An actuating lever is operatively connected to the valve actuating members of the respective gas spring units and is pivotable about a pivot point in first and second directions, the second direction being at least substantially perpendicular to the first direction.

Abstract: A seat comprising a seat base portion which is adjustable in respect of inclination has a seat base frame which is mounted pivotally at its rearward portion on a supporting arrangement. Disposed on the supporting arrangement in the front region thereof is a rotary shaft, with a lever arm secured to each end thereof. The lever arms are in turn pivotally connected to the seat base frame. At least one of the lever arms has a plurality of detent openings which are disposed in an arcuate array and which can be selectively engaged by a detent member carried by the seat base frame, to latch the seat base frame in the desired inclined position. The actuating lever for the detent member is disposed at the side of the seat, within easy reach of the occupant thereof.

Abstract: A multi-mode child restraint system is disclosed, comprising a seat and a bolster adapted to receive and releasably engage the seat. The seat provides a seating unit and means for propping the seating unit rearwardly, such propping means being mounted within the seat of the seating unit. The restraint seat, either with or without the bolster, is adapted to be secured to a motor vehicle seat by a seat belt associated with such motor vehicle seat.

Abstract: Invalid's chair has a support frame which includes a main support section, a seat support section pivotable on the main frame section and a back frame section, pivotable on the seat support section of the frame. The chair includes a seat cushion mounted on the seat frame and lower and upper back support cushions carried by the back frame and being independently adjustable relative one another. The seat and back frame sections are tiltable on the main frame together and the back frame is also tiltable independently of the seat frame. A tilting control cylinder is disposed between the back support section of the frame and the seat section and another tilt control cylinder is disposed between the seat section and the main support section to enable tilting of the back and seat portions of the chair together and independent tilting the back portion. The back support frame section and seat frame section are each pivotable about pins which are disposed substantially forward of the back edge of the seat cushion.

Abstract: A multi-mode child restraint system is disclosed, comprising a seat and a bolster adapted to receive and releasably engage the seat. The seat provides a seating unit and an impact shield pivotably mounted to the seating unit. The impact shield is rotatable rearwardly to form a support stand for the seating unit in a reclined position. The restraint seat, either with or without the bolster is adapted to be secured to a motor vehicle seat by a seat belt associated with such motor vehicle seat.

Abstract: Support and adjusting mechanism for the seat and backrest of a work chair having a pedestal with feet and a vertical support column comprises a support part fixed on the upper end of the support column and having laterally spaced, parallel upwardly extending support flanges. A seat support has laterally spaced, parallel downwardly extending flanges which partially overlap and are pivotally connected with the flanges of the support part. A backrest support has laterally spaced, parallel, forwardly extending flanges partially overlapping and pivotally connected with the flanges of the support part and also the flanges of the seat support. A coupling lever has spaced, parallel flanges which partially overlap and are pivotally with the flanges of the support part, the seat support and the backrest support. An air spring acts between a lower region of the support part and a lower region of the backrest support.

Abstract: A tilting mechanism for a chair seat or the like of the kind where said tilting mechanism comprises a rigid metal plate being connected to a chair support via a retaining means and where said chair seat is pivotally connected to said tilting mechanism by the aid of said retaining means, first and second flexibly resilient and coaxially arranged members e.g., rubber pads or springs, being provided for cooperation with the metal plate and the attaching frame or the like of the chair seat and both said members being provided in front of and spaced from said retaining means so that said first member is compressed when the seat is tilted backwards and that said second flexibly resilient member is compressed when the seat is tilted forwards. Said members are precompressable by the aid of an adjusting member for the adjustment of the tilting rigidity. Said tilting mechanism is provided with locking means to enable locking the seat in a forward tilted, a neutral, or a backward tilted position.

Abstract: A reclinable vehicle seat that can be used in an aircraft comprises a bottom part and a back support part which are rotatable together about an axis which extends transversely to the seat and is below and towards the rear bottom part. A hydraulic cylinder is provided to secure the parts in positions angularly spaced about the axis. The back support part may additionally be pivoted about the same or a different transverse axis in relation to the bottom part. The seat preferably includes a leg support part extending downwardly from or adjacent to the front edge of the bottom part, which optionally includes a foot rest. The leg support part may be fixed or pivoted in relation to the bottom part so as to extend forwardly and downwardly when the seat is tilted rearwardly of its normal upright position.

Abstract: A children's automobile-mounted safety seat has a body support with a seat portion (2), a base (3) for rotatably supporting the seat portion (2), and reclining adjustment members (12, 15, 16, 17) for adjusting the angle of inclination of the body support portion (2). A journal shaft (11) connecting the seat portion (2) to the base is positioned in the rear lower region of the seat portion in a cavity or hollow space in the base. Reclining adjustment elements (12, 15, 16, 17) are also positioned below the front lower region of the seat portion (2) in the cavity so that manipulation of the reclining adjustment elements is possible only by reaching through an opening in the base into the cavity. A child sitting on the seat normally cannot reach into the cavity and is thus protected against injury by said reclining adjustment elements.

Abstract: The present invention relates to a seat lifter employed for a vehicle seat comprising a rotary fulcrum being mounted at the front portion of a seat cushion of the seat, a link mechanism for rotating the seat centering around the rotary fulcrum being mounted at the back portion thereof, a link mechanism for supporting and adjusting the link of said link mechanism by means of an offset pin formed projectly on a disc with a tooth groove being provided, thereby adjusting a seat angle and elevating the movement of the seat by rotary adjustment of the seat centering around the rotary fulcrum.

Abstract: A base bracket is fixed to a driven shaft and a fixed gear, a lock gear rotatably supported by the base bracket and engageable with the fixed gear, a guide bracket rotatably supported by the base bracket, a handle slidably supported by the base bracket, a member for coupling the guide bracket to the lock gear and a member fixed to the handle and for rotating the guide bracket when the handle is slid relative to the base bracket, wherein the handle is slidably extended most outwardly from the base bracket, the guide bracket is rotated by the rotating member relative to the base bracket and the lock gear is also rotated through the coupling member so that the engagement between the lock gear and the fixed gear is released whereby the base bracket and hence the shaft can be rotatable by the handle.

Abstract: A foldable chair has a base with upstanding portions extending upwardly from opposite sides of a forward portion thereof, and a seat member having its forward portion connected pivotally to these upstanding portions. Tension elements are connected to the upper end portions of the upstanding portions and rearward portions of the seat member for holding the seat member in an operative position. The length of the tension elements may be adjusted to vary the position of the seat member, and removable armrests may also be provided.

Abstract: An arrangement for adjustment of seats has a seat support which is connected with rails associated with a vehicle bottom. The front end region of each lateral support member is connected via a swinging member with the associated rail in a pivotable manner. Each swinging member has a toothed rack in which a pinion supported in each lateral support member engages, and the pinion is arranged on a shaft extending through the lateral support members. An actuatable locking device fixes the pinion in the toothed rack together with the seat support in selected positions in stepped manner. For lifting or lowering the front and the rear seat region independently of each other, or together with each other, the rear end region of each lateral support member is also supported on a shaft extending through the seat support and fixedly connected with a pinion associated with each lateral support member.

Abstract: An earth working vehicle such as a backhoe having an earth working bucket to form an excavation in the ground at the rear end of the vehicle and the operator must visually observe the excavation being done, a tiltable seat assembly including a seat support frame, an operator's seat secured to said frame, a resilient support for supporting said seat on said frame, a pivot support for pivotally connecting the support frame about a transverse horizontal axis to the vehicle to permit the support frame, the seat and the resilient support to tilt as a unit about the transverse axis and consequently tilt an operator in the seat for better visibility of the area being excavated.

Abstract: A friction brake assembly for stopping the transmission of motion between drive and driven shafts comprising a brake drum, a coiled braking spring having several turns adapted to frictionally contact the inner peripheral surface of the brake drum to exert a braking force, an operating member rigidly mounted on the drive shaft within the brake drum, a hanger member rigidly mounted on the driven shaft within the brake drum, and a pair of guide members for controlling the braking spring according to the rotation of the drive shaft to allow the braking spring to be released from the condition in which it exerts the braking force.

Abstract: A vehicle seat adjusting apparatus for adjusting the angle of inclination of a seat and thereby adjusting passenger height and available leg room by rotating the seat about a single, centrally located, transverse or lateral axis. A latch mechanism normally holds the seat relative to the seat track rails. Release of the latch mechanism is effected through a manual lever at the outside of one seat rail. The lever draws a release assembly laterally of the seat to slide a release arm longitudinally of the seat. The seat may then be notched to a desired position with the aid of a bias spring assisting the seat movement. Release of the lever allows the latch mechanism bias to restore the latch action in the desired position. By using a central pivot, you adjust the attitude of the seat and, by virture of the motion pattern, the rear of the seat moves up or down thus raising or lowering the occupants eye level in the vehicle.

Abstract: The present invention relates to a seat for airplanes, buses and like vehicles. The seat comprises a frame, an upholstery support, and a three-piece device for locking both sides of the upholstery support in a selectable pivot position. The locking device includes a stepless adjustable-length bar in the nature of a hydraulic piston, a body for connecting the front end of the hydraulic piston to a front cross member of the seat frame, and a pivot lever for attaching the rear end of the hydraulic piston to a rear cross member of the upholstery support.

Abstract: A body weight chair control in which the chair back and chair seat may be adjusted independently of each other. The chair occupant's body weight is the source of energy in moving both the back and seat. The chair control includes a front link and a rear link, each pivotally mounted on a base link. An intermediate link is pivotally mounted on the rear link, and a seat link is mounted on and between the intermediate link and the front link. A releasable locking mechanism is provided to lock two non-connected links in fixed relation, whereby all five links are locked in fixed relation.

Abstract: A locking mechanism for a vehicle seat having a seat cushion and a backrest is disclosed. The locking mechanism includes of a bracket fixed to the vehicle floor and provided with an elongated vertical groove. A locking pin fixed to the seat cushion is guided in the elongated groove of the bracket. A first latch is pivotably mounted on the bracket and provided with an engaging groove engageable with the locking pin, as well as a projecting portion and a sliding face. A second latch is pivotably mounted on the bracket and is provided with a recessed portion engageable with the locking pin, as well as a cam surface engageable with the projecting portion of the first latch. The engaging groove of the first latch is urged into engagement with the locking pin by a first spring while the recessed portion of the second latch is urged into engagement with the locking pin by a second spring. A wire is engaged between the backrest and the first latch.

Abstract: The specification discloses a chair control in which the tiltable member can be locked against movement with respect to the stationary member by means of a rigid locking plate pivotally mounted on the tilting member and rotatable by an actuator rod, having a bell crank type lever formed therein, into close proximity with the stationary member to thereby physically block relative movement between the tiltable and stationary members.

Abstract: A chair which includes a seat portion and a backrest portion as well as a support member for supporting the seat portion. A cylinder piston assembly enables an adjustment of an inclination of the backrest portion with respect to the seat portion, the seat portion is mounted at the support member so as to fix a normal setting of inclination between the seat portion and backrest portion. A first end of the cylinder piston assembly is mounted to the backrest portion by way of a bearing shaft. The bearing shaft is mounted to the chair so as to enable the bearing shaft to be easily removed. A second end of the cylinder-piston assembly is connected to the chair by way of a coupling member which extends transversely of the seat portion. The coupling member includes a pair of axially spaced end portions in which are respectively arranged coaxially disposed bearings adapted to accommodate bearing support pins.

Abstract: The invention relates to a frame for a longitudinally and height-adjustable vehicle seat, having a bracket which is pivotable about a lateral axis. This frame is supported on the lateral axis and on respective height adjustment racks which are spaced from the lateral axis on either side of the seat and extend in the pivot direction thereof. The racks each mesh with respective gears of a height adjustment drive connected with the bracket. The frame also has guide rails in which respective runners are longitudinally guided, each of which, together with a longitudinal adjustment rack, forms a structural unit. Respective gears of a longitudinal adjustment drive, connected with the guide rails, engage these racks.

Abstract: A compact, optically inconspicuous tilting device for seating units, to be attached underneath a seat including a casing disposed beneath a seat resting on the understructure of the seating unit, a seat carrier pivotably mounted about a horizontal axis to the front edge area of said seat, mechanical locking means for connecting the seat carrier within the casing including first locking members successively arranged in at least two planes parallel to the swivel axis of the seat carrier and staggered towards each other and second locking members engageable with said first locking members, a rest member connected to said casing including a shank member, a link member interconnecting said seat carrier with the shank member, a bearing member connected to said casing operably engageable with said shank member to the rest member, at least one spring element mounted on said casing which acts at one end of the seat carrier opposite to the load of the user, and bistable activation lever means for activating said mechan

Abstract: Disclosed is a standing work seat in which the support column and the base are rigidly attached together, the support column is inherently rotatable, the seat is inclinable in the seat direction. The seat exhibits a rear edge drawn up to the user's iliac crest, a rounded front edge and a slip-inhibiting configuration of the seat surface. The standing work seat permits optimum absorption of a user's body load in confined work stations.

Abstract: A device for adjusting the inclined angle of the seating surface of the seat cushion of an automotive seat essentially mounted in a vehicle. A pair of seat slide adjusting units are fixed to seat slide upper rails arranged on a floor surface and are disposed at both sides of a seat cushion frame. A sector gear plate is so secured to a bracket fixedly secured to the seat slide adjusting unit as to be elevationally rocked at its base around a fulcrum. Another bracket is fixedly secured to the seat sliding adjusting unit. A pinion gear rotated by a handle knob is journaled at the another bracket at a fulcrum. The pinion gear is coupled through a non-reversing unit with the handle knob in a manner that the gear may be freely rotated by the operation of the knob but may not be rotated by the rotating load applied from the pinion gear side. The pinion gear is engaged in mesh with the teeth of the gear plate.

Abstract: A tilt control mechanism for a chair utilizing a control housing and a pivot block mounted for pivotal movement with respect to each other about an axis. An actuator block is supported for movement along that axis and carries a pin thereon. In one position of the actuator block, the pin engages a flange on the control housing, preventing pivotal movement of the control housing with respect to the pivot block. In another position of the actuator block along the axis, pivoting movement is permitted. In a third position of the actuator block along the axis, a gas cylinder mechanism is actuated controlling the height of the chair.

Abstract: A latch assembly for a pivoted vehicle seat (14) which provides sufficient locking capability to permit a seat belt (15) to be mounted on the frame (10) of the seat as opposed to the base (16) of the vehicle. The latch assembly includes two slidable horizontally spaced apart latch blocks (20,20') mounted on the frame (10) of the seat (14) for engaging base mounted catches (22,22'). Two actuator arms (48,48') coupled to the frame, are operatively connected to each latch block (20,20') and are secured to and positioned by an operator actuated release member (36). Movement of the actuator arms (48,48') causes the latch blocks (20,20') to disengage the base (16) mounted catches (22,22') substantially simultaneously.