| 摘要 |
PURPOSE: A device for opening and closing a chute is provided to prevent the falling of tools through a chute path by forming a through path on the top of the chute. CONSTITUTION: A device for opening and closing a chute comprises a shuttle(110) and an opening and closing part(120). The shuttle is installed in a rail(30) to move. The rail is formed on the top of a chute(10). The opening and closing part is installed in the rail to move. The opening and closing part is connected in the movement of the shuttle, and opens and closes the chute. The opening and closing part comprise a cover part connected to the shuttle. |
