| 摘要 |
Footrest apparatus for use on a wheel chair comprises: a footrest shaft comprising two tubular members coaxially aligned to accommodate a sliding of one of the two tubular members within the other for length adjustment of the shaft. One end of the footrest shaft is attachable to a structure of the wheel chair and a footrest plate is attachable to the footrest shaft at the other end. A plurality of inline, spaced apart, diametrically opposed pairs of apertures are provided along the sides of the other tubular shaft member. The one tubular shaft member includes a pair of diametrically opposed spring loaded pins which retract into and protrude through apertures at the outer surface thereof, the pins being aligned with the diametrically opposed aperture pairs of the other shaft member. Accordingly, when the one tubular shaft member slides within the other tubular shaft member for length adjustment of the shaft, the pins retract during sliding and spring out and lock into a selected pair of apertures of the other member at a desired shaft length. The footrest apparatus may include a cam clamp attachable to the periphery of the other shaft member. The cam clamp includes a lever operative in a first position to secure the other shaft member to the one shaft member at the desired shaft length and operative in a second position to release the other shaft member from the one shaft member for shaft adjustment. A method of adjusting the footrest apparatus of the wheel chair is further disclosed. |
