초록 ▼

An anti-tip mechanism for use with a wheelchair is provided. The anti-tip mechanism has a support frame being adapted to be coupled to the wheelchair. A first and a second wheel support arm extend outwardly from the support frame and are pivotally coupled thereto. A wheel is rotatably connected to e

An anti-tip mechanism for use with a wheelchair is provided. The anti-tip mechanism has a support frame being adapted to be coupled to the wheelchair. A first and a second wheel support arm extend outwardly from the support frame and are pivotally coupled thereto. A wheel is rotatably connected to each of the support arms. An adjusting mechanism is coupled between the frame and the support arms. The adjusting mechanism is adapted to change the position of the support arms relative to the frame. In this manner, the adjusting mechanism is adapted to raise and lower the wheels. The anti-tip wheels of the wheelchair are thus adjustable to different fixed positions relative to the support frame by operation of the adjusting mechanism.

대표청구항 ▼

1. A wheelchair having a seat and a frame that is generally parallel to a support surface on which the wheelchair is sitting and having an anti-tip mechanism, said anti-tip mechanism comprising:a support frame being adapted to be coupled to the wheelchair frame; a first and a second wheel support ar

1. A wheelchair having a seat and a frame that is generally parallel to a support surface on which the wheelchair is sitting and having an anti-tip mechanism, said anti-tip mechanism comprising:a support frame being adapted to be coupled to the wheelchair frame; a first and a second wheel support arm extending outwardly from said support frame and pivotally coupled thereto; a wheel rotatably connected to each of said support arms and spaced above the support surface when the support surface is generally flat; an adjusting mechanism coupled between said frame and said support arms, said mechanism adapted to change the position of said support arms relative to said frame and relative to the seat, said adjusting mechanism thereby being adapted to raise and lower said wheels; and a footplate disposed generally parallel to the ground, said footplate being mounted to the support frame independently of said support arms, wheels and adjusting mechanism, and being adapted to receive the feet of a wheelchair user, wherein said wheels are adjustable independently of said footplate to different fixed positions relative to the support frame, the support surface and the seat by operation of said adjusting mechanism and wherein said wheels do not necessarily engage the support surface during adjustment when the support surface is generally flat.