Safety zone, crash prevention equipment using this safety zone and fall prevention method

摘要

Problem to be solved: to provide a safety belt to which a retractable fall prevention device is securely and easily attached to a belt, a crash prevention device using this safety zone, and a method for preventing the fall of the crash.The safety zone 4 is provided with a belt 16, a winding fall preventing device 22, and a connecting device for detachably connecting the winding fall preventing device 22 to the belt 16.One of the winding fall preventing device 22 and the connecting device is provided with a connecting projection, and the other end has a guide hole through which a connection projection is inserted.The winding fall preventing device 22 and the connecting device comprise locking mechanisms.The connection projection is provided with an engaging portion, and the guide hole is engaged with the engaging portion to prevent the connection projection from coming off the guide hole.The relative position can be changed by moving the coupler and the retracting fall preventing device 22 relative to each other so that the engaging portion is not engaged with the stopping position where the engaging portion engages with the stopper.The locking mechanism restricts the relative movement between the coupler and the retractable fall preventing device.Diagram