| 摘要 |
PURPOSE:To enhance effectiveness in works and the quality of traction cables by placing trucks with cable receptacle roller, which provides possibility of coupling and decoupling the cables automatically, on the rails for traveling of a movable sheave and thereby priventing the cable from slackening by simple construction. CONSTITUTION:Trucks 4 are placed on the rails designed for traveling of a movable sheave 2, and coupling and decoupling means 7, 8 are installed between the sheave 2 and trucks 4 and between trucks facing each other. When this movable 2 sheave 2 travels toward the stationary sheave 1, a traction fitting 10 is put in engagement with an L-shaped metal 11 to drive the truck 4 forward. When the sheave 2 travels in the direction apart from the sheave, 1, the metal 11 moves in engagement with the fitting 10, where a crank 12 comes in contact with a position setting piece 9 and is rotated to cause disengagement. Thus slackening of the cable is prevented by the truck 4 equipped with a cable receptacle roller 6. |
