| 摘要 |
PROBLEM TO BE SOLVED: To surely catch a work not round by providing jaws in such a manner that the work is held by one set of jaws after it is held by the other set of jaws. SOLUTION: By the movement to the right of a piston rod, a first crank lever 18 is rotated clockwise, and a second crank lever is rotated counterclockwise. Thus, sliders 12, 13 approach the axial center of a chuck body, and when chuck jaws 14, 14 of the first set of sliders 12, 12 come in contact with a work, the sliders 12, 12 are not moved even when the piston rod is further moved to the right, an engaging element 8 is thus not moved, a forked lever 27 is rotated clockwise by the movement of a shaft pin 26, and the chuck jaw 16 of the slider 13 is approached to the axial center of the chuck body and brought into contact with the work. |
