| 摘要 |
<p>PROBLEM TO BE SOLVED: To connect fingers and a piston of a cylinder device by a simple mechanism without causing a malfunction, in an opening-closing chuck having a pair of fingers for opening-closing along a guide rail.SOLUTION: A guide rail 30 is provided on an outer surface of a chuck body 3, and a pair of fingers 2a and 2b are arranged on the guide rail 30, and among the pair of fingers 2a and 2b, at least one is formed as a movable finger freely movable along the guide rail 30, and cylinder devices 4a and 4b having rods 10a and 10b advancing-retreating in the axial direction by the action of air pressure, are provided by one or two on the inside of the chuck body 3, and a tip part of the rods 10a and 10b projects to the outside from an end part of the chuck body 3, and end blocks 23a and 23b are installed in a tip part of the rods 10a and 10b, and the end blocks 23a and 23b are connected to the movable fingers 2a and 2b.</p> |
