| 摘要 |
PROBLEM TO BE SOLVED: To reduce a burden on an assistant by facilitating the holding of a cylinder body of a guide tube device at rest. SOLUTION: A guide tube device M is provided with a stopper 30 and a bar material 40 (lock mechanism) provided on the stopper 30. An insertion hole 31 is formed in the stopper 30 and a cylinder body 10 is slidably inserted into the insertion hole 31. One end part of the bar material 40 sticks out of the stopper 30 and a recessed part 41b is formed in the course thereof to house the cylinder body 10 while a slit 42a is formed at the other end part to allow elastic reduction of thereof in the longitudinal direction. The elasticity at the other end part of the bar material lets the internal surface of the recessed part 41b be pressed onto the cylinder body 10. |
