초록 ▼

A compact collapsible wheelchair comprises first and second side frames, wherein each side frame includes a seat support rod and wheel support member. A collapsible support framework is operatively attached to the first and second side frames and includes a first auxiliary seat support member and a

A compact collapsible wheelchair comprises first and second side frames, wherein each side frame includes a seat support rod and wheel support member. A collapsible support framework is operatively attached to the first and second side frames and includes a first auxiliary seat support member and a second auxiliary seat support member positioned relative to a flexible seat connected between each seat support. The flexible seat is urged into engagement with the first and second auxiliary seat support members in response to the bodyweight of the user. At least one hinged cross brace extends between the first and second side frames for maintaining the side frames in spaced relationship when the wheelchair is in the open position. A first and second main wheel are attached to the wheel support members on the first and second side frames respectively. First and second smaller swivel wheels are attached to the wheel support member on the first side frame and on opposite sides of the first main wheel. Third and fourth smaller swivel wheels are also attached to the wheel support member on the second side frame and on opposite sides of the second main wheel.

대표청구항 ▼

[ What is claimed is:] [1.] A compact collapsible wheelchair comprising:first and second side frames, each of said side frames including a seat support rod and a wheel support member, parallel to said seat support rod;a collapsible support framework operatively attached to said first and second side

[ What is claimed is:] [1.] A compact collapsible wheelchair comprising:first and second side frames, each of said side frames including a seat support rod and a wheel support member, parallel to said seat support rod;a collapsible support framework operatively attached to said first and second side frames, said collapsible support framework including a first auxiliary seat support member and a second auxiliary seat support member, said collapsible support framework being interconnected to said first and second side frames such that when said wheelchair is in an open position, said first and second auxiliary seat support members are disposed closely adjacent and generally parallel to said seat support rods on said first and second side frames respectively;a flexible seat spanned between and attached to each of said seat support rods, said first and second auxiliary seat support members being positioned relative to said seat and said seat support rods whereby said seat is urged into engagement with first and second auxiliary seat support members in response to the body weight of a user;at least one hinged cross brace extending between said first and second side frames for maintaining said side frames in a spaced relationship when said wheelchair is in said open position;first and second main wheels rotatable attached to said wheel support members on said first and second side frames respectively;first and second, smaller swivel wheels attached to said wheel support member on said first side frame and on opposite sides of said first main wheel;third and fourth smaller swivel wheels attached to said wheel support member on said second side frame and on opposite sides of said second main wheel, whereby said wheelchair is simultaneously supported on said first and second main wheels and said first and second and said third and fourth smaller swivel wheels on a planar surface.