초록 ▼

Front wheel assemblies for use with wheelchairs of the type having a main frame and large diameter rear wheels and a seat structure thereon. The front wheel assemblies are highly effective in that they permit a quick release of the front wheel for easy and quick removal of the front wheel and easy a

Front wheel assemblies for use with wheelchairs of the type having a main frame and large diameter rear wheels and a seat structure thereon. The front wheel assemblies are highly effective in that they permit a quick release of the front wheel for easy and quick removal of the front wheel and easy and quick replacement of a front wheel. The front wheel assemblies are designed so that the trailing angle of the front wheel relative to the ground or supporting surface can be varied and further, a locking mechanism is provided for temporarily locking the front wheels in a selected position.

대표청구항 ▼

An apparatus for selectively positioning the front wheels of a wheelchair having a frame means to selectively alter the angle of attack of the wheelchair relative to a ground plane and to selectively alter the steering characteristics of the wheelchair, said apparatus comprising: (a) a separate moun

An apparatus for selectively positioning the front wheels of a wheelchair having a frame means to selectively alter the angle of attack of the wheelchair relative to a ground plane and to selectively alter the steering characteristics of the wheelchair, said apparatus comprising: (a) a separate mounting member for securement to each of the opposite sides of the frame means of the wheelchair, (b) receiving means associated with each of the mounting members for receiving a wheel post in any of a plurality of angular positions relative to the ground or other supporting surface, (c) a separate wheel supporting post adapted for connection to said receiving means, (d) a separate yoke carried by each of said posts and being rotatable about a generally vertical axis relative to the associated wheel post housing, and each of said yokes having a pair of spaced apart plates with a pair of aligned apertures in said spaced apart plates, and (e) a separate wheel and axle for each said yoke and each axle capable of being disposed in the aligned apertures, and where the angle of the wheel post relative to the frame means can be adjusted to affect steering and riding characteristics. A wheel assembly for use with wheelchairs, said wheel assembly comprising: (a) a wheel post housing, (b) mounting means for mounting the wheel post housing to a frame of a wheelchair, (c) a yoke operatively coupled to said wheel post housing for rotation about a generally vertical axis, (d) a wheel and axle arrangement carried by said yoke, (e) a locking device operatively mounted on said assembly and having a locking pin capable of being engagable with a notch associated with said yoke and preventing rotation of said yoke when said locking pin is in said notch, (f) an engagable portion on said locking pin for engagement by a user to manually move said pin to the position where it is engagable with said notch, (g) a locking element associated with said pin to hold same in a locked position, and (h) release means operatively associated with said locking element and being manually operable to prevent said locking element from holding the pin in the locking position.