| 摘要 |
A screw loosening prevention structure (15), that restrains the opposing rotation of a cylinder head (5) (first member) and a cylinder tube (4) (second member) that are coupled together by the screwing action of screws (11, 12), is provided with a first hole (16) that is formed in the cylinder head (5), a second hole (17) that is formed in the cylinder tube (4), a pin (18) that is inserted into the second hole (17), and an energizing member (spring (19)) that is inserted into the second hole (17) and applies energy to the pin (18) in the direction of pushing the pin out of the second hole (17). In a state where the cylinder head (5) and the cylinder tube (4) are engaged, the pin (18) is inserted through the first hole (16) and the second hole (17). |
