| 摘要 |
PURPOSE: To enlarge the bending angle between the center part of an external fixing matter and a clamp coupling with a simple structure, by providing a swivel joint between a shell half part for supporting a ball joint connecting member and the ball joint-shaped connecting member. CONSTITUTION: The swivel joint 7 is provided between a shell half part 3 and a ball joint-shaped connecting member 6, and the pivotal shaft 8 of the swivel joint 7 is constituted also as a fixing member. The ball 9 is connected to the pivotal shaft 8 through a shaft 11, and the shell half part 3 is connected through a collar 12. The pivotal shaft 8 has a thread, so that the shaft 11 can be fastened and fixed to the collar 12. Thus, the ball joint connecting member 6 can be rotated about 90 deg. relative to the shell half part 3 and fixed, and the using range of a clamp coupling 1 is widened. |
