Push cart

Details Push cart Push cart

1998-08-27

2000-04-25

Mai, Lanna

Land vehicles

Wheeled

Extensible

280 47315, B62B 120

Patent

active

060535148

ABSTRACT:
A push cart comprises a main frame, a handle, a front support, two wheel frames, two wheels, a retractable rod and a rear support, wherein the main frame has a pair of side rods connected with a pair of rods of the handle in a slidable manner, the center portion of the main frame is connected to each other, and the lower portion of the main frame has connected with a wheel frame and a wheel respectively. The lower respective ends of the main frame are connected with respective ends of the front support which then meshes with the wheel frame. The respective lower ends of the handle are connected with one end of the retractable rod whereas the other end of the retractable rod is connected with the inner center portion of the front support, thus, by operating the handle, the retractable rod is linked to move which then links the front support and the wheel frame to retract or to expand.

REFERENCES:
patent: 3659867 (1972-05-01), Curry
patent: 4315632 (1982-02-01), Taylor
patent: 4917392 (1990-04-01), Ambasz
patent: 5348325 (1994-09-01), Abrams
patent: 5468005 (1995-11-01), Yang
patent: 5803471 (1998-09-01), DeMars et al.
patent: 5984327 (1999-11-01), Hsieh et al.

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