| 摘要 |
<p>A strut (6) of a circular plug shape is projected upward from a main body (4) of a housing (3). The strut (6) is able to be inserted into a circular hole (9) of a work (8). An opening (20) is formed laterally in a left portion of a peripheral wall (18) of the strut (6), and a cam portion (28) is projected leftward from a right portion of the peripheral wall (18). A positioning rod (22) is inserted into an insertion hole (14) formed in an upper portion of the housing (3) so as to be movable vertically and radially. A cam surface (32) is provided vertically on an upper right portion of the positioning rod (22), and a pushing portion (33) is provided on an upper left portion thereof. When a driving means (D) drives the positioning rod (22) downward for locking, the cam portion (28) pushes the cam surface (32) leftward, and thereby, the pushing portion (33) passes through the opening (20) to press an inner periphery of the circular hole (9) of the work (8).</p> |
