초록 ▼

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 eac

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.

대표청구항 ▼

[ I claim:] [1.] A push cart comprising a main frame, a handle, a front support, two wheel frames, two wheels, a retractable rod and a rear support, wherein said main frame having the respective sides connected to respective sides of said handle in a slidable manner, the center portion of said main

[ I claim:] [1.] A push cart comprising a main frame, a handle, a front support, two wheel frames, two wheels, a retractable rod and a rear support, wherein said main frame having the respective sides connected to respective sides of said handle in a slidable manner, the center portion of said main frame being connected to respective sides of said rear support, the lower portions of said main frame being connected to said wheel frames which then connected to said wheels, respectively, the lower ends of said main frame being connected to respective sides of said front support, Further, the respective sides of said front support comprising teeth, and said wheel frame having teeth corresponding to and meshing with said teeth of said front support, said handle having its respective ends connected to said retractable rod, and the other end of said retractable rod being connected to the inner center portion of said front support, thus, by operating said handle, linking said retractable rod and said front support and said wheel frame to move simultaneously.