초록 ▼

A sports wheel chair has elongated side frame members of hollow high strength tubing extending along the two sides of the chair to provide rear wheel and seat support and extending accurately downwardly to provide front wheel supports. The elongation provides a degree of flexibility that permits fro

A sports wheel chair has elongated side frame members of hollow high strength tubing extending along the two sides of the chair to provide rear wheel and seat support and extending accurately downwardly to provide front wheel supports. The elongation provides a degree of flexibility that permits front end collisions without damage and permits flexure to maintain contact of all four wheels with uneven terrain. Elongation of the frame increases stability and concentrates weight on the rear wheels for greater maneuverability. The main wheels are cambered out from top to bottom to protect the hands and provide a wider wheel base. All of the frame members are hollow tubes to impart light weight to the chair along with great strength. The two elongated side frame members are joined by novel strong quick connecting and disconnecting parts at the front and back to permit rapid disassembly without sacrificing strength. The front connecting part also provides a foot rest. The main wheels are secured to the frame by strong quick disconnect mechanisms for quick removal and replacement and a removable spoke shield is provided which is retained primarily by the hand wheel connectors. A canvas seat and back having Velcro connections provides ready removal and the ability to change seat angle and position of the seat and backrest.

대표청구항 ▼

A wheel chair comprising: two generally parallel, elongated main frame members extending along opposite sides of the chair from front to back, said members each comprising a continuous hollow tube having a generally horizontal region extending from adjacent the back of said chair and terminating in

A wheel chair comprising: two generally parallel, elongated main frame members extending along opposite sides of the chair from front to back, said members each comprising a continuous hollow tube having a generally horizontal region extending from adjacent the back of said chair and terminating in a downwardly depending region extending to the front of said chair, means permitting flexure of said main frame members under front end impact and torque loads, said means comprising the length and wall thickness of said hollow main frame members and the properties of the material thereof. means for securing main wheels each to a different one of said main frame members adjacent the back to the wheel chair, means for securing small front wheels each to a different one of said main frame members adjacent the front of the wheel chair, and means for detachably connecting the main frame members one to the other.