| 摘要 |
PURPOSE: A shelf transfer apparatus is provided to ensure stable operation of a driving unit even when a rail is distorted or the parallelism is broken. CONSTITUTION: A shelf transfer apparatus comprises three fixed wheels and movable wheels(4). The fixed wheels are installed under a shelf and guided on two rails to linearly reciprocate. The movable wheels have a certain degree of freedom. Each movable wheel comprises a base(41) being transferred on the rails, a rotating part(43) which is provided on the base and allowed to rotate right and left, and a linear motion part(42) which is coupled to the top of the rotating part to support the bottom of the shelf and lead a linear motion.
|
