Karma Medical Products Co., Ltd.

Chih-Chuan Yang

Eric Van Olst

Cheng-Jy Tien

A controller shifting device for interconnecting an armrest and a controller of a powered wheelchair includes an adjustment mechanism. The adjustment mechanism includes a casing, a first connection seat connected to the casing for connection with the armrest, and a second connection seat connected to the casing for installation of the controller. When the casing rotates from an operating position to a folded position, the second connection seat is lowered for placing the controller below the armrest.

Controller shifting device

A seat mechanism includes a front seat plate, left and right guide rails each having a longitudinal rail groove, a rear seat plate disposed on the guide rails, two protruding rods each protruding downward from a bottom surface of the rear seat plate to a corresponding guide rail, a plurality of guide members projecting sideward from each protruding rod and inserted into the rail groove of the corresponding guide rail such that each guide rail is slidable relative to the guide members of the corresponding protruding rod, and a plurality of fasteners each extending through the rear seat plate and detachably and selectively engaging one positioning hole in the guide rails for adjustably positioning the rear seat plate on the guide rails.

Seat mechanism of electric wheelchair

Wheelchair shroud

An expandable armrest of a wheel chair includes a fixed part having a first pivotal portion which includes a first pivotal hole. A movable part is pivotably connected to the first pivotal portion of the fixed part by its second pivotal portion. A first transverse hole and a second transverse hole are defined in the second pivotal portion. A slide member is slidably inserted into the slots of the second pivotal portion and has an inclined hole in which an engaging member is engaged. The engaging member has a first end and a second end. A trace that the engaging member moves in the inclined hole constantly intersects a trace that the first end moves in the first transverse hole and a trace that the second end moves in the second transverse hole, such that the movable part is positioned by controlling the movement of the slide member.

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Minsyong, Taiwan

Chih-Chuan Yang