| 摘要 |
PURPOSE: A rotatable bicycle parking rack is provided to park a large amount of bicycles in a limited space because a movable plate can be inserted or drawn into/out of the parking rack. CONSTITUTION: A rotatable bicycle parking rack comprises an upper frame(20), a support frame(30), and a movable plate(40). Multiple first bolt holes are formed in the vertical part of the upper frame. Multiple second bolt holes corresponding to the first bolt holes are formed in the support frame. Bolts and nuts are fastened to the first and second bolt holes of the upper and support frames to adjust the height of the upper frame. Multiple leaf springs are installed between the movable plate and the bottom plate of the upper frame to reduce shock when the movable plate is inserted or separated into/from the upper frame. |
