Abstract: A wheel immobilizer for substantially preventing rotation of a wheelchair wheel or tire about a central axis thereof is provided comprising a pivoting wheel stop carrying a detent and a rotating cam having a receiver. The detent seats in the receiver when the wheel immobilizer is in an unlocked position (with the wheel stop held at a spaced distance from the wheel) to allow rotation thereof. A lever is operably connected to the cam, whereby actuating the lever rotates the cam and unseats the detent from the receiver, urging a wheel-contacting surface of the wheel stop into locking contact with the wheel. In another aspect, a wheel locking assembly is provided comprising paired wheel immobilizers as described which may be operated independently. In still another aspect, a wheel locking assembly is provided comprising a first and second wheel immobilizer, wherein the first and second wheel immobilizers are operably linked by a flexible linkage.

Abstract: A wheelchair wheel locking assembly comprises a first wheel stop having an actuating lever for operating a first wheel-engaging member. The first wheel stop is operably connected to a second wheel stop via a continuously flexible linkage, whereby actuating the first wheel stop simultaneously operates the second wheel stop. In the event the continuously flexible linkage is severed, the first wheel stop may continue to be operated by the actuating lever. The wheel locking assembly of this invention is advantageously operated from a single side of a wheelchair. A wheel locking assembly having dual actuating levers is also provided, whereby from a single side of a wheelchair a first actuating lever operates a first wheel-engaging member and a second actuating lever operates a second wheel-engaging member.

Abstract: A wheelchair wheel locking assembly comprises a first and a second displaceable wheel-engaging member, having a substantially continuously flexible linkage operably connecting the first and second wheel-engaging members. In the event the continuously flexible linkage is severed, the first wheel stop may continue to be operated by the actuating lever. A wheel-contacting surface of the wheel-engaging member may include a recess for engaging a portion of a wheel in an interference fit. A wheelchair comprising the wheel locking mechanism of the invention is also provided.

Abstract: A wheelchair wheel locking assembly comprises a first wheel stop having an actuating lever for operating a first wheel-engaging member. The first wheel stop is operably connected to a second wheel stop via a continuously flexible linkage, whereby actuating the first wheel stop simultaneously operates the second wheel stop. In the event the continuously flexible linkage is severed, the first wheel stop may continue to be operated by the actuating lever. The wheel locking assembly of this invention is advantageously operated from a single side of a wheelchair. A wheel locking assembly having dual actuating levers is also provided, whereby from a single side of a wheelchair a first actuating lever operates a first wheel-engaging member and a second actuating lever operates a second wheel-engaging member.