초록 ▼

The present invention is an improved anti-tip wheel assembly for a wheelchair. The preferred embodiment of the assembly includes a cam mechanism to allow the initial height of an anti-tip wheel above ground to be adjusted dependent on the obstructions which the wheelchair is expected to encounter. T

The present invention is an improved anti-tip wheel assembly for a wheelchair. The preferred embodiment of the assembly includes a cam mechanism to allow the initial height of an anti-tip wheel above ground to be adjusted dependent on the obstructions which the wheelchair is expected to encounter. The cam mechanism fixes the position of the anti-tip wheels to prevent the wheels from unintentionally displacing when an anti-tip wheel contacts the ground or an obstruction.

대표청구항 ▼

The present invention is an improved anti-tip wheel assembly for a wheelchair. The preferred embodiment of the assembly includes a cam mechanism to allow the initial height of an anti-tip wheel above ground to be adjusted dependent on the obstructions which the wheelchair is expected to encounter. T

The present invention is an improved anti-tip wheel assembly for a wheelchair. The preferred embodiment of the assembly includes a cam mechanism to allow the initial height of an anti-tip wheel above ground to be adjusted dependent on the obstructions which the wheelchair is expected to encounter. The cam mechanism fixes the position of the anti-tip wheels to prevent the wheels from unintentionally displacing when an anti-tip wheel contacts the ground or an obstruction. of the brake toward a handle of the shopping cart to disengage the brake. 21. A shopping cart comprising; wheels; a frame comprising a base portion secured to the wheels and substantially vertical support members immovably secured with respect to the base portion; a basket comprising a bottom, a rear wall, a front wall, and sidewalls, wherein the rear wall is pivotally mounted on the sidewalls; and couplings between the substantially vertical support members and the basket, wherein the basket is movable along the substantially vertical support members to multiple positions.