| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a holder which can suck a work depending on the shape or size thereof. <P>SOLUTION: A suction port 1 and a suction pump 3 are coupled through a suction passage 10 being opened/closed through movement of a cylinder 2 and a negative pressure chamber 50 for moving the cylinder 2 is coupled between a work detection port 4 and a pump 5 for movement. When the work W is placed on the work detection port 4, the negative pressure chamber 50 is evacuated to bring abut a negative pressure. Consequently, only the cylinders 2c and 2d mounting no work W move to close the suction passage 10 thus stopping suction from the suction openings 1c and 1d. <P>COPYRIGHT: (C)2003,JPO</p> |
