| 摘要 |
PURPOSE:To prevent a loosening by inserting a driving wire in a tube body provided to an upper pulley protector, and rotating the tube body to increase the wire pass when the wire is extended. CONSTITUTION:A guide rail 3 furnishing pulleys 9 and 11 at the upper end and the lower end, and a driving member 17 are provided, and they are installed to an automatic door frame and the like. Then, a driving wire 25 is extended through the pulleys 9 and 11 and a wire drum 23. Then, a slider 26 furnishing a roller 29 to move up and down in the guide 3, and allowing to hold a window glass and the like, is provided, and it is installed to the wire 25. And a protector 35 in which the wire 25 is inserted to a holder 39 is pivoted by a holding shaft 10, and it is enforced conterclockwise by a pulling spring 46. Furthermore, protectors 33 and 49 are connected by a flexible tube body 67. As a result, the tube body is rotated when the wire is extended, and the wire pass is increased to maintain a strained condition. |
