Importance

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Abstract

An assembly which can be mounted to a wheelchair to provide easy removal of the drive wheels yet retain mobility of a wheelchair includes a connector block mounted on a wheelchair frame, which connector block has a first orifice extending therethrough for receiving an axle of a drive wheel of a wheelchair and a second orifice extending therethrough and at least partially intersecting the first orifice. A drive wheel axle having an annular groove at one end extends into the first orifice of the connector block such that the annular groove aligns with the second orifice. A rod rotatable about its longitudinal axis extends through the second orifice of the connector block with at least a portion of the rod having a generally circular cross section and a slot therealong. The slot aligns with the first orifice of the connector block. A first arm is fastened to and extends radially from the rod and moves with rotation of the rod. A second arm is pivotally linked to the first arm. A leg is pivotally linked to the second arm and slidably mounted to the frame. A caster wheel assembly is attached to the leg and cooperates with the leg, rod, first arm and second arm to move between a surface-engaging position and surface-disengaging position upon rotation of the rod such that the rod intersects the annular groove of the axle when the caster wheel assembly is in the surface-disengaging position and the slot on the rod aligns with the first orifice and faces the annular groove of the axle when the caster wheel assembly is in the surface-engaging position.

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First Claim