| 摘要 |
PROBLEM TO BE SOLVED: To provide a device preventing separation by expanding when the device is inserted between two works and the works is to be separated. SOLUTION: This device comprises a fixed long and narrow tensing member 1, a fixing member 2 attached on the tensing member 1, and an expanding device 4 applying compressing force between a fixing member 2 and a resistance member 3 by motion of the resistance member receiving the tensing member 1 and the fixing member 2 having the tensing member 1 attached. A first and a second bearing members 18, 19 are supported at center opening of surrounding sleeve 17 and are operably connected to the surrounding sleeve. The bearing members can rotate around the surrounding sleeve 17. A torsion spring 20 connects the first and the second bearing members and is arranged in the surrounding sleeve. The torsion spring biases the first and the second bearing members 18, 19 in an opposing rotation direction to separate at least one bearing member from another bearing member and make the same rotatable along a thread of the surrounding sleeve 17. |
