| 摘要 |
PROBLEM TO BE SOLVED: To provide a plug opening-closing tool capable of attaching-detaching/opening-closing any of a small plug and a large plug, also simple in a structure and inexpensive in manufacturing cost, without executing vertical reversal of the plug opening-closing tool.SOLUTION: The problem is solved by providing the following plug opening-closing tool. The plug opening-closing tool comprises a torque receiving part for receiving torque added from an external part and a torque output part for transmitting the torque to the external part by rotating together with the torque receiving part by the torque added to the torque receiving part, in which the torque output part comprises a small plug rotating projection piece for rotating around a rotary shaft when rotating in a tip part in the rotary shaft direction of rotation and a pair of large plug rotating projection pieces arranged with a clearance from the small plug rotating projection piece on its both sides by sandwiching the small plug rotating projection piece and rotating around the rotary shaft when rotating.SELECTED DRAWING: Figure 1 |
