초록 ▼

A wheelchair includes a support frame and wheels and casters rotatably cocted to the support frame. A rotatable steering member is slidably connected to a caster swivel support frame for steering the wheelchair. The wheelchair also includes a collapsible seat frame as well as a pedal operated transm

A wheelchair includes a support frame and wheels and casters rotatably cocted to the support frame. A rotatable steering member is slidably connected to a caster swivel support frame for steering the wheelchair. The wheelchair also includes a collapsible seat frame as well as a pedal operated transmission to drive the wheels of the wheelchair. A single brake lever brings two brake elements into engagement with the wheels to lock the wheelchair against rolling movement.

대표청구항 ▼

[ What is claimed is:] [1.] A wheelchair comprising, in combination:a support frame having a support frame front end and a support frame back end;first and second drive wheels rotatably mounted on said support frame at the support frame back end, said first and second drive wheels being disposed on

[ What is claimed is:] [1.] A wheelchair comprising, in combination:a support frame having a support frame front end and a support frame back end;first and second drive wheels rotatably mounted on said support frame at the support frame back end, said first and second drive wheels being disposed on opposed sides of said support frame;pedal means mounted on said support frame at the support frame front end;transmission means operatively associated with said pedal means and said drive wheels for rotating said drive wheels to propel the wheelchair in response to movement of said pedal means by a user of said wheelchair;caster mounting means connected to said support frame;first and second caster swivel frames rotatably connected to said caster mounting means, said first and second caster swivel frames being disposed on opposed sides of said support frame and each rotatable three hundred sixty degrees about a vertical axis of rotation relative thereto;first and second caster wheels, said first caster wheel rotatably mounted on said first caster swivel frame about a horizontal axis and said second caster wheel rotatably mounted on said second caster swivel frame about a horizontal axis;a steering member rotatably mounted relative to said caster mounting means and connected to said first caster swivel frame to steer the first caster swivel frame along with the caster wheel rotatably mounted thereon when a force is applied to the steering member by said user, and said steering member being freely rotatable three hundred sixty degrees with the first caster swivel frame when a force is not being applied to the steering member by said user; andconnector means releasably interconnecting said first caster swivel frame and said steering member, said steering member including an elongated portion having a distal end positioned in said caster mounting means and said connector means including socket means releasably interconnecting the distal end of the elongated portion to the first caster swivel frame.