| 摘要 |
PROBLEM TO BE SOLVED: To provide a tensioner capable of finely adjusting the amount of motion of a pressing part.SOLUTION: A tensioner 10 is provided with a restriction part 30 for restricting motion of a pressing part 28. The restricting part 30 has an inserting part 30A that is rotatably supported around a center of the inserting part 30A. Then, when the pressing part 28 is moved to one side in an axial line direction, the restricting part 30 is turned toward one side in the axial line direction to enable the pressing part 28 to be inserted into the restricting part 30 or the pressing part 28 and the restricting part 30 are integrally moved toward one side in the axial line direction. In turn, when the pressing part 28 is pushed toward the other side in the axial line direction, the restricting part 30 is turned toward the other side in the axial line direction and motion of the pressing part 28 is restricted by a frictional force between a constraint part 50 provided at the restricting part 30 and the pressing part 28.SELECTED DRAWING: Figure 1 |
