Abstract: Various implementations include an arm rest system. The system includes a housing, one or more actuators, and an arm cushion. The actuators are at least partially disposed within a cavity of the housing. Each of the actuators includes a cylinder defining an opening, a piston slidably disposed within the cylinder opening, and a piston rod having a first end coupled to the piston and a second end opposite and spaced apart from the first end. Each of the actuators is movable between a first position and a second position. One of the cylinder or the piston rod of each of the actuators is static with respect to the housing and the other is coupled to the arm cushion such that moving the actuators between the first and second positions moves the arm cushion relative to the housing.
Abstract: A crashworthy bench (1) for an aircraft having a cabin that includes a floor (51), a ceiling (52), and substantially vertical partitions. Said bench (1) comprises a frame (2), at least one seat for a passenger, with each seat comprising a seat, a back, a retaining system (7) for retaining said passenger, and at least one energy absorber device (20). Said frame (2) is fastened to the inside of said cabin via one low connection point (8) for each seat and via at least one high connection point (9) for said bench (1). Two low connecting rods (11) and one leg (12) connect the frame (2) to each low connection point (8) on said floor (51). Two high connecting rods (15) connect the frame (2) to the high connection points (9) on said ceiling (52) or on a vertical partition of the cabin of the aircraft.
Abstract: A seat suspension system having a seat cradle, a seat mounted in the seat cradle and an anchor body having a plain rectangular box-like shape disposed behind the backrest portion of the seat. A pair of spaced-apart plain parallel anchor plates encloses the anchor body. There are also provided two pairs of spaced-apart parallel bars each having spaced-apart first and second ends, the first ends being movably connected to the anchor body and the second ends being movable connected to the seat cradle for allowing a movement of the seat cradle relative to the anchor body. An air bellows is mounted inside the anchor body. The air bellows has an upper end connected to the seat cradle and a lower end connected to the anchor body. A variety of attachment kits may be affixed to the anchor plates for mounting the seat suspension system to different models of industrial vehicles.
Abstract: A suspension seat for an automotive vehicle has a seat frame which is vertically movably supported on a parallel link mechanism. A compression spring and a shock absorber of a suspension unit are coaxially assembled. A spring bracket is disposed on the compression spring and screwed with a rod of the shock absorber. A fixing nut is fixed to the rod on the spring bracket to adjust elastic force of the compression spring by changing the position of the spring bracket. A projection of the spring bracket projects from a slit of a suspension unit support bracket with scale division. A resilient bracket supports the parallel link mechanism and outwardly projects to function as a bumper for a seat frame. Therefore, the suspension seat suppresses shock or sound due to impact during an operation of the seat and realizes a simple adjustment of hardness of the suspension unit.
Abstract: A seat suspension including a downstop slide element having an overall width that automatically adjusts to compensate for dimensional variations between relatively stationary and movable frame parts of the seat suspension due to manufacturing tolerances and wear. The downstop has first and second leaf members having spaced apart first and second top and bottom walls, front and rear walls, and inner and outer walls, respectively. A connecting member interconnects the leaf members to place the first and second inner walls in opposed confronting relation for movement toward and away from each other to form a longitudinally extending slide gap therebetween of variable width. A first biasing member is provided to normally urge the pair of leaf members apart. A first tapered portion is provided on the inner wall of at least one of the leaf members. A cam surface is provided on the front wall of at least one of the leaf members.
Abstract: A vehicle seat frame assembly comprises a stationary support frame having two laterally spaced-apart side support plates attachable to a vehicle and on which is mounted a vertically movable seat frame which comprises a horizontal seat portion and a vertical backrest portion. An upper rod is horizontally supported in slots formed in the upper ends of the side support plates. Rotatable rollers attached to opposite ends of the rod are engaged in roller guide boxes which are rigidly secured to the lateral sides of the seat frame backrest portion to guide and support the seat frame. An elongated swing arm is pivotally connected at its rear end and at its front end to the lower end of the support frame and to the front end of the seat portion, respectively, to help support the seat frame. A spring shelf and a header plate are rigidly secured to the seat frame near the lower and upper ends, respectively, of the backrest portion.
Abstract: A compact seat suspension for an underground mining machine is disclosed in which a vertical suspension is operably connected between a fixed bracket and a sliding bracket for supporting a seat and for reducing and dampening vibration and shock transmitted from the mining machine to the seat. The fixed bracket is attached to a side wall of the mining machine and includes one or more vertical guide members. The sliding bracket is movably mounted on the vertical guide members for relative vertical movement with respect to the fixed bracket. The sliding bracket is attached to the back portion of a seat provided within the mining machine. The entire compact assembly is adapted to be positioned entirely behind rather than beneath the seat, making it possible to utilize the suspension in areas of reduced height.
Abstract: A tractor seat of the type having a seat pan 14 which is hooked on to a vertically movable spring biassed carriage 12, so that the seat pan can be released and moved out of the way of a standing driver, has a latch device 18 comprising a headed pin 20 secured to the pan 14 and a catch plate 22 secured to the carriage and formed with an aperture 22a for receiving the headed pin 20. The catch plate is resilient so that it can be bent away from the pin to release the seat pan. In particular the aperture tapers from the lower end normally occupied by the pin to an upper end through which the head of the pin cannot pass, so that accidental lifting of the pan will lock the headed pin within the aperture.
Abstract: A seat carriage is moveable vertically relative to a vertical support member by a first guide roller thereon located behind the support member and second guide roller thereon located in front of the support member diagonally below the first roller and by a constant load type spring secured on the support member and secured to the seat carriage to bias it upwardly when the carriage is unlocked from its adjusted position. The seat carriage can be easily locked or unlocked relative to an adjusted position by a toggle actuated spring-biased pin thereon engaged in one of several height adjustment apertures on the support member.
Abstract: An aircraft seat (11) particularly adapted as a pilot seat for a helicopter includes a seat bucket (12) having a back-rest portion (13) supported by an articulated support structure (14) adapted to react vertical, longitudinal and lateral loads and to permit normal vertical stroking of the seat by extension of any energy absorber (32) in the event that the support structure becomes mis-aligned in a hard landing. The structure comprises two parallel generally vertical guide tubes (15a, 15b). The lower ends of both guide tubes are attached to a cabin floor (17) by universally pivoted joints (18), the upper end of a first one of the guide tubes (15a) is pivotally attached to one end of a generally horizontal straight link (20) to react longitudinal loads only and the upper end of the second guide tube (15b) is pivotally attached at the apex of a generally horizontal triangular link (21) so as to react both lateral and longitudinal loads.
July 7, 1983
Date of Patent:
June 25, 1985
Peter W. Trickey, David C. Netherway, William S. Clifford
Abstract: This invention relates to supports, for vehicle seats, having a generally upright configuration. Provision of a plurality of seat adjustments, for operator comfort and safety, performable with an economy of movement and structure which tends to maximize free, usable space within a vehicle cab, is achieved by the invention. A housing member (13) has facing traces (17), and a carriage member (14) bears the seat and a plurality of rollers (51, 53) which engage the traces (17). A bracket assembly (15), disposed between housing and carriage members (13, 14), is selectively slidable with respect to the carriage member (14) to effect height adjustment and, when locked with respect to the carriage member (14), is operable upon to effect weight adjustment.
Abstract: A seat assembly in which a seat is mounted on a vibration damping mounting including a variable rate spring in the form of a fluid filled and pressurized pouch disposed between two rigid members capable of relative rotation, vertical movements of the seat which result in relative rotation of the two rigid members towards each other being arranged to compress the pouch and increase the area of contact of the pouch with the rigid members.
November 19, 1974
Date of Patent:
May 16, 1978
Peter George Ware, Harold William White
Abstract: Height adjustment mechanism for a suspended vehicle seat permits the seat height to be adjusted relative to its supporting frame after the seat has been adjusted for the weight of the occupant. A plate (movable with the suspension) having notches or teeth on one edge is adjustably locked relative to a channel (movable with the seat) in which it can slide by a handle actuated pivoted latch member.