PURPOSE: To perform smooth and reliable pull off and winding by providing a rope wound around a winding reel, a hook mounted to the tip part of the rope, and a means to temporarily lock the rope against the winding force of the winding reel.

CONSTITUTION: In use, after a trunk fastening belt 1 is wound around the trunk part of a body to attach the belt, a rope 8 is unwound from a winding reel 7 against the winding force of a spiral spring 6. When the rope 8 is unfastened after the rope is unwound to a proper length, a rope stopper 10) is worked to lock winding of the rope 8. With this state, a hook 11 at the tip part of the rope 8 is hooked to a structure and a main rope attached thereto, and a work is executed. When, during non-use, the hook 11 is unhooked from the main rope and the rope stopper 10 is unlocked by means of the force of a lock release lever 10a, and the rope 8 is wound around the winding reel 7 by means of the winding force of the spiral spring 6 and contained in a rotary D-ring winder A.