Abstract: A lumbar support structure of the present invention includes a cam means rotatably supported on bracket to which one end of torsion spring is pivoted. The cam means is actuated by a lever on the side of the seatback to vertically move the lumbar support through cable member connecting the two. The lumbar support structure further includes a cam member pivoted to the bracket and movable in response to caming action of the cam means, and the support plate which is adjustably rotated upon the movement of cam member so that the support plate may be vertically movable to change the contact position with the seatback.

Abstract: A chair that converts from a conventional seat and back rest type of chair to a seat and knee rest type of chair utilizes a seat that is pivotally connected to a base support that, when pivoted, is rotated from a generally horizontal plane when used as a conventional chair, to a predetermined angle of tilt. The back rest is also pivotally connected to the base support by a bracket arm that permits the back-knee rest to be moved from a position above the plane of the seat, to support the back of a person sitting on the horizontally positioned seat, to a position below the plane of the seat and at a predetermined angle of tilt to support the knees of a person sitting on the tilted seat.

Abstract: An improved swing away stump rest for below the knee (BK) amputees to maintain comfort and proper positioning of the stump to assist in preventing knee flexion contracture of the amputated limb and edema in the stump. The swing away feature provides for maximum safety and convenience when transferring.

Abstract: A collapsable, detachable child seat for mounting on a wheelchair having as its basic elements two identical frames supporting a fabric seat which slides into receiving members attached to tubular frame of said wheelchair.

Abstract: A seat mounted on a vehicle floor comprising a seat frame and a backrest. The seat frame contains a plastic base member and an open section formed within the base member. The base member is circumscribed by a rim extending upward along a substantial portion of the base member and a support surface extending outward from the base member substantially perpendicular to the rim. The base member contains a plate section integrally connected to the base member and extending within the open section. A device is provided for adjustably supporting the seat frame along the floor of the vehicle. A pair of support rods are connected to the adjustable support device and the seat frame is mounted on the support rods. A device is also provided for flexibly supporting the plate section in response to downward pressure thereon. A seat cushion is mounted on the seat frame. The backrest, which is connected to the seat frame, includes a fixed backrest frame having sidewalls extending outward from the backrest frame.

Abstract: The work chair has a seat squab and a backrest which both pivot on a seat carrier in the same direction interdependently. A load element is fitted to the seat carrier which is adjustable over its linear extension by means of a locking mechanism, whereby the load element pivots the seat squab and backrest into position of rest under spring loading.To achieve a relatively large and symmetric spring loading in the smallest space it is foreseen that the load element should consist of two parallel compression springs in between which a hydraulic locking mechanism is fitted whereby one end of the load element is connected by a pivot to the free pivoting part of a lever arm, which forms the backrest-carrying part.

Abstract: A head support for a traveler sitting in a chair having a headrest, and which includes:(a) a first band adapted to be fitted in adjustably wrapped condition closely about the user's head and at eye or forehead level,(b) band retention structure associated with the band for retaining the band in said wrapped condition, and(c) head restraint structure coupled to the band and adapted to be coupled to the headrest for restraining the user's head against lateral side-to-side movement relative to the headrest.

Abstract: A seat back reclining mechanism for a vehicle seat includes an upper and lower brackets respectively secured to the seat back and the seat cushion. A reduction gear mechanism is provided between the upper and lower brackets for a stepless adjustment of the reclining angle. An actuating knob is located at one side of the seat cushion for the convenience of operation. A belt-sprocket type motion transmitting mechanism is provided between the actuating knob and the reduction gear mechanism for transmitting a rotation of the knob to the gear mechanism. In order to prevent the seat back from being inclined under the load applied by the passenger, a constraining device is provided for preventing the motion transmitting mechanism from transmitting the force from the reduction gear mechanism.

Abstract: A vehicle seat assembly consisting of a main frame, a fibrous matrix supported in a generally horizontal position on the frame and a foam body molded in place on the frame so as to encapsulate the matrix in the body in a position forming a support for a load-carrying portion of the body.

Abstract: A vehicle seat whose seat back can be collapsed forward in relation to the seat cushion and wherein the projected upper end of a bracket located on the side of the seat cushion is covered by a hinge cover made of synthetic resin to separate the projected end of a bolt from the side of the seat back, so that the surface cover material on the seat back can be prevented from breaking because of the direct contact between the front end of the bolt and the side of the seat back.

Abstract: A seat back recliner mechanism is disclosed including a serially arranged gear train having a pair of infinitely adjustable spring coil clutches serially arranged by way of a reduction gear. One clutch absorbs rotational loading on the seat back in one direction, and one clutch absorbs rotational loading on the seat back in the opposite direction.

Abstract: It is possible to lock the inclination of the back of a seat by the locking device by means of a strip friction connection. The locking device is arranged as a modular unit with an axial motion by means of friction connection disk (13a) in bearings (10a) of the seating. A self-locking eccentric (17) bearing by its pivoting axis (16) on the tension rod (14) and with an extremely small rise of its eccentric curve is frontally engaged with the assembly of friction connection disks (13). Thus, part of the handling resistance of the eccentric is considerably reduced due to the small rise of its eccentric curve and on the other hand, due to a shortening, characteristic of the system, of the pivoting travel of the eccentric (17), said travel being still sufficiently short.

Abstract: A vehicle door structure having an exterior surface of a glass window located in a vehicle door. A door window is vertically displaceable in conjunction with a slider. The slider has a vertically extending groove into which an end portion of the door window is fitted. An adhesive is provided between the end portion of the door window and the inside of the slider to fix the door window in the groove of the slider. The upper portion of the slider closes the space in which the adhesive is filled so that the adhesive does not spread out on the upper surface of the slider, thereby preventing accumulation of foreign matter such as dust and dirt, and adding to the aesthetic appearance of the assembly.

Abstract: A rapid locking device for an articulated seat including an outer casing having a central spindle connected to one side of a seat-back frame, the outer casing containing a second casing which is star-shaped and carries a swing bar on which are mounted idle serrated rollers placed between outer face of the star-shaped casing and inner face of the outer casing.

Abstract: A recliner mechanism particularly adapted for motor vehicle seats is described. In accordance with this invention, the adjusted position of the seat back is controlled by using a recliner mechanism which includes a coil spring clutch which is selectively tightened or loosened around an actuator clutch drum surface to fix the reclined position or to permit it to be varied. The upper recliner structure has a toothed quadrant surface which meshes with a recliner gear which communicates preferably through an intermediate gear to the rotating actuator clutch drum. A lever is employed to cause relative rotation between a pair of actuator cam plates which are connected to extending ends of a coil clutch spring. Movement of the actuator lever selectively causes the coil clutch spring to tighten or loosen around the actuator clutch drum.

Abstract: Mechanism for raising/lowering a seat structure. A motor-operated screw-nut assembly is operatively connected to the seat structure via a lazy tongs support system. Laterally spaced guide devices give the support system a desired wide-stance stability that prevents undesired lateral dislocation of the seat structure. The support mechanism is compactly arranged beneath the seat structure, whereby the assembly is adapted to be used in military vehicles.

Abstract: A rotating and sliding tray is affixed to an arm of a geriatric chair to afford a service tray for the occupant that is neatly and securely stored at the side of the chair. The tray is slidably mounted on a movable and rotating holster so that vertical, longitudinal and rotational movement are all accomplished to place the tray in front of the occupant.

Abstract: A recliner for an automotive vehicle seat comprising a seat mount, an adjustable seat back bracket pivoted to said seat mount and having a substantially flat end portion provided with a sector having an arcuate series of straight spur teeth concentric to the pivot axis between said mount and bracket, and a tilted worm carried by said mount having a helically threaded portion in mesh with the teeth of said sector, the worm being tilted an angle to correspond to the helix angle of its thread.

Abstract: A gear operated seat recliner mechanism is described which is particularly useful in connection with motor vehicle occupant seats. The recliner permits the angle between the seat back and seat bottom to be varied as desired by the seat occupant. In accordance with this invention, the upper recliner structure pivots about the lower recliner structure and a quadrant component, which pivots with the upper recliner structure, includes a curved toothed rack. The rack meshes with a gear mounted to the lower recliner structure. A pawl is adjustable between an engaged position which fixes the seat back angle to a disengaged postion permitting the seat back angle to be changed relative to the seat bottom. This design improves over prior art designs in that it employs fewer parts, is less costly to produce, and further, permits very fine adjustments in the seat back angle.

Abstract: A head restraint for use on the backrest of a seat for an automotive vehicle has a post that fits into the backrest and a bracket attached firmly to the upper end of the post. The bracket at its ends carries trunnions, each of which is encircled by a split bushing having radially directed lugs that are separated at the split in the bushing. The bushings, which are otherwise generally cylindrical, fit into arcuate seats on end members, and the end members are in turn attached to and rigidify a metal can or core that forms part of a cushion that is located behind the head of the occupant of the seat. The cushion pivots forwardly and rearwardly on the trunnions between a generally upright position, where is serves merely as a head restraint, and a forwardly inclined position, where it may be used as a head rest. Each end member also has a clamp provided with clamping elements which bear against the sides of the lugs for the bushing in that end member.