| 摘要 |
PURPOSE: A foldable cart with auxiliary wheels is provided to facilitate storage by reducing the volume of the cart because a connection frame for supporting a base frame, a second vertical frame, and auxiliary wheels can be folded. CONSTITUTION: A foldable cart(100) with auxiliary wheels comprises a vertical frame(10), a base frame, a handle frame(20), a connection frame(24), and an auxiliary wheel holder(32). Main wheels(12) are coupled at the bottom of the vertical frame by a shaft(14). The base frame is turnably coupled in the lower part of the vertical frame by hinges(18). The handle frame is turnably coupled at the top of the vertical frame by hinges(22). One end of the connection frame is turnably coupled to the handle frame by hinges(26). Auxiliary wheels(28) are coupled to the other end of the connection frame by a shaft to support the load of objects. The auxiliary wheel holder is coupled to the handle frame by pins and fixes the auxiliary wheels. |
