| 摘要 |
PROBLEM TO BE SOLVED: To provide a connection member capable of obtaining a connection relationship by screwing by less than one rotating operation. SOLUTION: In a joint body 2, a semiannular collar part 2e is projectingly provided at a connection opening part 2d side edge of a front end part 2b concentrically with a rotating axial line a, and a female screw part 2f is formed on the inner face of the semiannular collar part 2e. In an operation body 3, a through hole part 3a which a male screw-shaped opening part 7a can be inserted into/detached from from the front end side and a semiannular recessed step part 3b which the semiannular collar part 2e can be inserted into/detached from from the front end side are arranged concentrically with the rotating axial line a. In the rear position of the operation body 3 where the female screw part 2f of the semiannular collar part 2e is protruded from the front end of the operation body 3, the male screw part 7b is covered with the female screw part 2f in the screwed state. In the front position of the operation body 3 where the semiannular collar part 2e and the male screw-shaped opening part 7a are moved so as to be positioned in the semiannular recessed step part 3b and the hole part 3a, respectively, the joint body 2 is rotated by rotating the operation body 3 around the rotating axial line a, so as to enable lock in the state where the connection opening part 2d is connected with the male screw-shaped opening part 7a and release of the lock state. COPYRIGHT: (C)2007,JPO&INPIT
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