| 摘要 |
PURPOSE:To eliminate any necessity for removing a bolt when a claw is replaced, by both forming a shank part, which can be fitted to engage with a master jaw, and providing a means of fixing to, and engaging with the master jaw, in the shank part. CONSTITUTION:A shank part 15a, which can be fitted to engage with a master jaw 11, is formed in a claw 15. Further, the shank part 15a is provided with means for fixing to and engaged with the master jaw 11 such as a notch 15e. The claw 15 can be mounted to and removed from the master jaw without causing any necessity for mounting and removing a bolt or the like every time as performed in the past, thus the claw 15 can be efficiently replaced in a short time. |
