| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate attaching/detaching work by providing each divided ring with a plurality of fitting holes along the circumference, and providing at least one of the fitting holes at the joint part of the divided ring. SOLUTION: A stop ring 10 is composed of two divided rings 11 formed by bisecting a ring member formed of a plate, and each divided ring 11 is provided with a plurality of fitting holes 12, 13 along the circumference. At least one of the fitting holes 12, 13 is provided at each joint part of the divided ring 11, and one to three other fitting holes are provided at intermediate parts so as to be four to eight fitting holes in all. Ring inner edge parts 11a are provided in such a way as to be fitted into a groove of a fixed member. With this constitution, the stop ring 10 can be easily mounted without enlarging or contracting a diameter at the time of fitting, and since the joint parts of the divided rings 11 are fixed by set screws, joint end parts are prevented from being twisted or deformed after fitting, and detachment is also facilitated.</p> |
