| 摘要 |
A parking device comprises a trolley, two guide rails located on the trolley, shanks on each of the guide rails and a drive unit located on the trolley, in which, numbers of round transmission bodies are arranged adjacently and alternately between the inner side of the shanks, the transmission bodies are strung as an array and each of the arrays coupled with the shanks by a shaft respectively, furthermore, whether the odd arrays or the even arrays of the transmission bodies are strung and coupled with the shanks. As a result, the clearance resulting from the seriate array is filled up by the alternated spaced array of the transmission bodies, while the two opposite sides of the transmission bodies form the forked butt joint in the ends. Therefore, the parking device stabilizes the transmission of the car and shortens the transmission time. |
