Land vehicles – Wheeled – Occupant propelled type
Patent
1982-03-24
1983-12-27
Pekar, John A.
Land vehicles
Wheeled
Occupant propelled type
280289WC, 280304, 280647, 297DIG4, 301132, B62M 114
Patent
active
044226608
ABSTRACT:
An assembly which can be mounted to a wheelchair to provide easy removal of the drive wheels of a wheelchair comprises a connector block mounted on a wheelchair frame, which connector 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 pivotaly linked to the first arm. A leg is pivotally linked to the second arm and slidably mounted to the frame. The leg cooperates with the 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 leg 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 leg is in the surface-engaging position.
REFERENCES:
patent: 2882063 (1959-04-01), Strasel
patent: 3889964 (1975-06-01), Pitts
patent: 4360213 (1982-11-01), Rudwick et al.
Costello William D.
Frank Martin B.
Helton, III Charles J.
American Hospital Supply Corporation
Fugate D. Lynn
Pekar John A.
Williams Roger A.
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