| 摘要 |
PURPOSE: To simply and rapidly perform plug attaching and detaching operation by providing a stopper prescribing the insertion position of a plug main body on the anti-insertion side of the plug main body and forming a hole having a bottom surface up to the midway position of the plug main body from the stopper side. CONSTITUTION: A plug 10 is formed from a material such as elastically deformable rubber and a flange 13 is provided to a plug main body 12 on the anti-insertion side thereof as a stopper and a taper surface 12A is formed to the leading end in the insertion direction of the plug main body 12 and a seal part 12B is formed to the outer peripheral surface thereof. The outer diameter of the plug main body 12 is slightly larger than the inner diameter of an opening 11 to set an insertion mode to a pressure insertion mode. The mounting position of the plug main body 12 can be prescribed by the position where the flange surface 13A of the flange 13 comes into contact with the surface S of a work W. A hole 15 having a bottom surface 15A is provided on the center axis of the plug main body 12 from the flange 13. Therefore, when external force is applied to the seal part 12B of the plug main body 12, elastic deformation becomes possible in the diameter contracting direction of the plug main body 12 and the flange part 13. |
