| 摘要 |
<P>PROBLEM TO BE SOLVED: To make mounting/dismounting force much weaker than conventional one by a one-touch operation even if fastening and locking force of an engaging portion on the side of a cap is increased for an aperture on the side of a tank. <P>SOLUTION: A capping device 1 includes a body 2 having an operating part 4, a sealing material 11 and the engaging portion 51, and when the device is inserted into the aperture 94 on the tank side and rotated by a predetermined angle via the operating part 4, the sealing material 11 is brought into pressure contact with the edge 94a of the aperture to have the engaging portion 51 locked by increasingly fastening with a lock 96 in the aperture so that the device 1 is mounted on the tank aperture 94. The body 2 has a movable element 5 assembled with a shaft 25 on which the sealing material 11 is mounted to form the engaging portion 51, and a cam mechanism 3 provided between the shaft 25 and the movable element 5 to make the shaft 25 vertically movable with respect to the movable element 5 by the operation of the operating part 4. The engaging portion 51 is engaged with/disengaged from the lock portion 96 via the cam mechanism 3 with the vertical movement of the shaft 25 with respect to the movable element 5. <P>COPYRIGHT: (C)2004,JPO |
