Abstract: A motor-vehicle armrest has a guide strip with an inner end fixed on a pivot part and an outer end bearing elastically radially on the pivot part at an intermediate position passed by a latch-member pin before a body part pivoted on the pivot part reaches an upper end position. This guide is formed between its ends with a notch through which the pin can pass radially when the body part is generally in the lower position. It has between its ends a front surface engage able by the pin for outward deflection of the latch-member end as the intermediate position is passed and also has between its ends a back surface engage able by the pin to deflect the member out of radial engagement with the teeth on movement of the body part from the upper position back past the intermediate position toward the lower position.

Abstract: The invention relates to an armrest (1) for a motor vehicle seat (8) with seatback (R), which pivots downwards with its end designed as a disk (1a) about a bearing journal (3) in a housing (2) after the release of a locking device (4), into a release position, and by being raised again is capable of pivoting towards the seatback (R) into its locked position of use. The present invention creates an armrest (1) of this nature, which, with problem-free low-friction switching, and with simple structural means, guarantees a secure position of use, optionally with or without overload protection. To that end, the locking device (4) includes of a setting piston (7), capable of movement approximately radially to the bearing journal (3), and a locking slide (9) capable of displacement therein, in a transverse aperture (7a). The setting piston (7) features an engagement projection which interacts with an engagement recess (11).

Abstract: A chair having a self-leveling armrest is disclosed, comprising a seat bottom and a seat back which rotates between a full up position and a full back position. The arm is moveable between an up position and a down position, and is positioned generally parallel with the seat bottom when in the down position. A first link member is pivotably connected to the seat bottom and to a second link member, and the second link member is pivotably connected to the seat back. The arm is pivotable with the seat back, and in the down position the arm moves with the second link member so that the arm remains generally parallel with respect to the seat bottom as the seat back pivots. A pin extends from the arm and is generally parallel with the armrest member. The pin is received by a pin-receiving groove in the second link member.

Abstract: This assembly is an armrest and a joystick support for use by a heavy machinery operator. The assembly includes a bracket secured to the backrest, on the side and above the operator'seat, a straight bar extending forwardly from the bracket, a first connector assembly including a universal joint for connecting the rear end of said bar of the bracket and a joystick support connected to the front end of the bar through a second connector assembly including a universal joint. The armrest is supported above the intermediate portion of the bar through a third connector assembly including a sleeve and a pair of upright elongated plates with longitudinal slots enabling adjustment of the armrest height above the bar and the adjustment of the armrest forwardly of the bracket. With this system, the operator can first adjust the position of the joystick along X,Y,Z axes to suit his arm and hand with respect to the joystick and then adjust the position of the armrest accordingly.

Abstract: A structure where an armrest is detachably coupled to a seatback includes an axial pin, a moving pin, a supporting bracket, and a slope. The axial pin and the moving pin projects from a side face of one end of the armrest. The moving pin has a head at its distal end. The supporting bracket is fixed on a side portion of the seatback, and it has an axial hole for receiving the axial pin and a guide groove for receiving the moving pin. The axial pin is inserted into the axial hole to be rotatably supported by the supporting bracket. The moving pin is inserted into the guide groove to be moved within the guide groove according to rotation of the axial pin. The slop is disposed on an edge of the guide groove near the using point. As the armrest reaches the using position, the head rides on the slope according to movement of the moving pin, so that the moving pin approaches to the seatback.

Abstract: A motor-vehicle armrest has a guide strip with an inner end fixed on a pivot part and an outer end bearing elastically radially on the pivot part at an intermediate position passed by a latch-member pin before a body part pivoted on the pivot part reaches an upper end position. This guide is formed between its ends with a notch through which the pin can pass radially when the body part is generally in the lower position. It has between its ends a front surface engageable by the pin for outward deflection of the latch-member end as the intermediate position is passed and also has between its ends a back surface engageable by the pin to deflect the member out of radial engagement with the teeth on movement of the body part from the upper position back past the intermediate position toward the lower position.

Abstract: In a pop-up structure of the invention, an elevatable member is rotatably disposed on upper portions of a pair of front and rear poles, which is also rotatably provided on a base member. Shielding plates extend between the front and rear poles on both sides thereof. In case the elevatable member is elevated by rotating both poles, even if an elevating height of the elevatable member is high, at least a part of the space formed between the front and rear poles is covered by the shielding plates at the both sides. Therefore, the appearance at the popped-up state of the pop-up structure is improved, and there is no risk of catching foreign materials by the poles or the like when it is collapsed.

Abstract: A chair armrest joint adjustable for 360° in any direction about a shaft includes a fix member, a movable member and a rotatable member, fixed between an armrest and the seat of a chair. The movable member is fixed on a connector fixed on the armrest, and the fix member is fixed on a seat bracket. When the rotatable member is rotated in one direction, the movable member may be rotated to let the armrest slope in any direction, disengaged from the fix member. Then the rotatable member is rotated reversely to force the movable member to engage with the fix member to lock the movable member and the armrest in the adjusted position. The fix member and the movable member both have teeth on their contacting surface to engage with each other or disengage from each other.

Abstract: A wheelchair for the handicapped is provided having an arm-rest hinge block including a back half-block fastened to an upright back of a structure and carrying a pivot pin. An arm-rest half-block mounted to pivot on the pivot pin includes a bore that rotatably receives a cylindrical shank of an angled arm-rest so that the shank is locked in position when the angled arm-rest occupies a substantially horizontal plane or a substantially vertical plane.

Abstract: An extendible chair arm comprises a rail member supported by an arm stump, a sliding member disposed in rail member being moveable within a length of trough of rail member, a first pivot plate with inner end pivotably secured to sliding member by a bearing, and a second pivot plate pivotably secured to the outer end of first pivot plate. With this, arm pad supported by second pivot plate can move and pivot with respect to the chair as sliding member moves in cooperation with the rotation of first pivot plate relative to sliding member and second pivot plate for providing a support for elbow when doing office work on table. Thus prevents arm fatigue.

Abstract: An office chair armrest device includes two armrests and two L-shaped armrest supporters. Each armrest has a second connect member with a lateral pivot hole formed in a rear end, and each armrest supporter has a first connect member with a lateral pivot hole formed in an upper end of a vertical portion. A pivot extends in the lateral pivot holes of both the first and the second connect members to pivotally connect the armrest with the armrest supporter fixed with a side of a seat and a vertical side of a backrest. The armrest can be easily swung to a horizontal condition for the arm of a user to rest thereon or to a vertical condition if the armrest is not used.

Abstract: An ergonomic arm support for supporting the forearm during typing, keying, or assembly operations. The arm support includes an armrest pivotally mounted on a shroud for sliding the armrest to and away from a cantilever disk which is secured to a table or chair. The shroud is pivotally slidable or repositionable relative to the cantilever disk such that the armrest, which is pivotal relative to the shroud may be positioned to provide a wide range of locations for positioning of an individual's forearms. The cantilever disk permits easy or convenient inward, outward, forward, or backward positioning of an armrest relative to an object where the cantilever disk frictionally engages the shroud to lock the armrest into a desired position during use. The shroud may also function as an enclosure of the cantilever disk to prevent inadvertent engagement between an individual and/or the individual's clothes and the cantilever disk.

Abstract: An adjustable armrest is provided for a riding lawn mower which normally has an operator's seat positioned thereon with the seat including armrests at either side of the seat. The armrests are normally pivotally movable from an operative position to an inoperative position. In the operative position, the armrests are designed to support the arms of the operator while the operator is manipulating the control levers of the mower. An adjuster plate is selectively rotatably mounted on each of the armrest support frames with the adjuster plate being selectively rotatably mounted with respect to the armrest support frame to selectively vary the amount of downward pivotal movement of the armrest. The adjuster plate has a bolt opening formed therein to facilitate the rotatable mounting of the adjuster plate on the support frame. The bolt opening is offset in at least two directions from the center of the adjuster plate so that the edges or ends thereof are spaced at different distances from the bolt opening.