| 摘要 |
PURPOSE:To prevent an immoderate torsional moment from being applied to a movable rail, by moving softly a suspended material toward a destination to move easily the whole of the suspended material to the destination by the operation of a switch box. CONSTITUTION:When the worker moves a spot gun 36 to the east, a wire 35 is strained to the east to press a top face 44 of an east operating switch E of a switch box 38. Thus, a motor 25 is operated, and a garter rail 22 travels to the east along fixed rails 21. When the spot gun 36 is made still in the spotting position of a work, the garter rail 22 approaches a position just above the spot gun 36; and when the garter rail 22 reaches the position just above the spot gun 36, the wire 35 is separated from the operation switch E because the wire 35 is suspended vertically apprroximately, and the switch E is turned off, and the motor 25 is stopped, and the garter rail 22 is stopped. In case of movement to the south and the north, the similar operation is performed by a motor 29. |
