| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a positioning device that can extend a diameter-enlarging range of a grip member without increasing a crushing margin of a scraper to fix a variety of sizes of workpieces thereto. <P>SOLUTION: In the positioning device, a diameter enlargeable annular member 12 includes a separated grip 14 and an expansion part 16, the scraper 106 comes into contact with an outer periphery of the expansion part 16, and a tapered rod 18 is integrally constituted of an inverted conical-shaped core 20 and an inverted conical-shaped ring 22. Thus, a multi-stage (2-stage) diameter-enlarging mechanism including a diameter-enlarging mechanism of the grip 14 and the inverted conical-shaped ring 22 and a diameter-enlarging mechanism of the expansion part 16 and the inverted conical-shaped core 20 is configured in one positioning device 10. Accordingly, a diameter enlargeable range of the diameter-enlarging mechanism of the grip 14 and the inverted conical-shaped ring 22 can be extended without being subjected to the control of the scraper 106. <P>COPYRIGHT: (C)2013,JPO&INPIT |
