| 摘要 |
PURPOSE:To positively prevent a shaft-body from unintentionally moving in its axial direction without requiring machining of the shaft-body by forming an engaging-locking groove, the depth of which is changed, on a part of the peripheral surface of the stem-part of a stopper member for abutting on the outer peripheral surface of the slide shaft-body, thereby preventing the axial movement of the shaft-body. CONSTITUTION:In a columnar slide shaft-body 1 which is guided and supported by a cylindrical bearing member 2 so that it can slide in its axial direction, a holding hole 3 having an axis- line A is formed in the bearing member 2, in a plane intersecting the axis-line of the shaft- body 1 and at a position at which the hole is in contact with the peripheral surface of the shaft body 1 or close to the peripheral surface of the shaft-body, and the stem part 5 of a stopper member 4 is inserted into the holding hole 3. Further, an engaging-locking groove 9 extending in the circumferential direction of the stem part 5 is formed in the middle part of the stem part 5 of the stopper member 4. The engaging-locking groove 9 is formed with circles having the center B at a position off-centered from the axial-line A of the stem part 5, and the radius of the deepest part 9A is designed to be in conformity with the outer peripheral surface of the shaft-body 1, and thus the sliding movement of the shaft-body 1 can be prevented by bringing the shaft-body 1 with the engaging-locking groove 9. |
