| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely prevent a backlash between an outer shaft and an inner shaft of a rod-shaped device and to surely prevent the shafts from rotating. <P>SOLUTION: The rod-shaped device 100 includes an inner shaft 20 inserted into a hollow section of an outer shaft 10 and axially telescopically connected thereto. A V-shaped rib 11 extending axially on the inner surface of the outer shaft 10 is slidably engaged in a V-shaped groove 21 extending axially in the inner shaft 20. The outer shaft 10 has a member 30 that protrudes inward from the wall surface of the hollow section on the opposite side across the central axis of the V-shaped rib 11. The protruding member 30 is pressed against the inner shaft 20 by the elastic force of an elastic member 40, and the V-shaped groove 21 in the inner shaft 20 is slidably engaged with the V-shaped rib 11 on the outer shaft 10 while being pressed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
