| 摘要 |
PURPOSE:To reduce the error for assembly by providing male screw parts on the first half part of a large end part for disusing the process of spot facing to improve the processing efficiency. CONSTITUTION:On both end parts of the first half body 41 of a large end part, penetrated holes 5 are respectively bored in parallel with the axis of a rod part 2, while on each penetrated hole 5, a female screw part 5a is provided at a fixed length from its opening on the side of the rod 2. On both end parts of the second half body 42 of the large end part of a half-ring shape, bolt-insert holes 6 are respectively provided to be fitted to each penetrated holes 5. Each fastening bolt 7 is provided with a male screw part 7a at the top, a push-in part 7b in the intermediate part, and a hexagonal head part 7c at the foot. After contact faces 41a and 42a of the first and the second half body 41 and 42 of the large end part are fitted, the bolt is inserted into the bolt-insert hole 6, and the male screw part 7a is screwed into the female screw part 5a, while the push-in part 7b is stretched through contact faces 41a and 42a, and pushed into the penetrated hole 5 and the bolt-insert hole 6. Therby, the second half body 42 of the large end part is jointed with the first body 41 of the large end part. |
