摘要:
Adjustable support apparatus (20) comprising a support structure (21) including a first seating element (22) and a pivotally attached second seating element (23) each for receiving a selected portion of a body of a user thereon, a rack and pinion adjustment assembly (26) fixed to the support structure for reciprocally adjusting the support structure and a belt and drum adjustment assembly (27) fixed to the support structure for pivotally adjusting the second seating element.
摘要:
Continuous seat adjustment apparatus is used in conjunction with a seating device including a track assembly having an inner track and an outer track longitudinally movable on the inner track. The apparatus includes a pair of opposed jaws mounted on the outer track for pivotal movement between first and second orientations. Each of the jaws defines an opening with the inner track longitudinally extending therethrough. The jaws frictionally engage the inner track in the first orientation to substantially prevent longitudinal movement along the inner track and the jaws release the inner track in the second orientation to allow continuous longitudinal movement along the inner track. A spring device is affixed to the pair of opposed jaws to provide a bias on the jaws tending to move the jaws into the first orientation and an adjustment member is provided for moving the jaws against the spring bias from the first orientation to the second orientation.
摘要:
A tubular recliner mechanism including an inner tube (23) having a longitudinally extending row of first apertures formed therethrough and an outer tube (22) having a row of longitudinally spaced apart second apertures extending between ends thereof in a rotationally offset pattern. The outer tube (22) is coaxially positioned around and rotatable relative the inner tube (23). A pin assembly (26) is carried by the inner tube (23) and includes a plurality of pins extending outwardly through the row of first apertures in the inner tube (23). The recliner mechanism has a locked position wherein rotation of the outer tube (22) relative to the inner tube (23) is prevented and an unlocked position wherein the outer tube (22) can rotate relative to the inner tube (23). In the locked position at least one of the plurality of pins extends through an aligned second aperture.
摘要:
Continuous seat adjustment apparatus is used in conjunction with a seating device including a track assembly having an inner track and an outer track longitudinally movable on the inner track. The apparatus includes a pair of opposed jaws mounted on the outer track for pivotal movement between first and second orientations. Each of the jaws defines an opening with the inner track longitudinally extending therethrough. The jaws frictionally engage the inner track in the first orientation to substantially prevent longitudinal movement along the inner track and the jaws release the inner track in the second orientation to allow continuous longitudinal movement along the inner track. A spring device is affixed to the pair of opposed jaws to provide a bias on the jaws tending to move the jaws into the first orientation and an adjustment member is provided for moving the jaws against the spring bias from the first orientation to the second orientation.
摘要:
A recliner mechanism (28) includes a cylindrical element (30) attached to a back portion (24) and a conically shaped element (37) attached to a seat portion (16). The cylindrical element has an axially extending central opening formed therein defined by a conically tapered inner surface (31), and the conically shaped element has an outer surface (38) receivable within the central opening. The conically shaped element is movably in an axially inward direction to a locked orientation with the inner surface of the cylindrical element engaging the outer surface of the conically shaped element for inhibiting relative pivotal movement of the back portion and the seat portion. The conically shaped element is also movable in an axially outward direction to an unlocked orientation with the inner surface of the cylindrical element disengaged from the outer surface of the conically shaped element for permitting relative pivotal movement of the back portion and the seat portion.
摘要:
An adjustable seat including a seat frame and a rack mounted to a substrate. First and second pinions are rotatably carried by the frame and meshingly engage the rack for relative movement of the rack. The second pinion is movable between an open position allowing rotation of the pinions, and an engaged position wherein the pinions are mutually engaged with each other and the rack, preventing relative movement of the rack and rotation of the pinions. A cam engages the second pinion for moving it between the open position and the engaged position.