| 摘要 |
PROBLEM TO BE SOLVED: To provide a chuck capable of finely adjusting the force for gripping an object. SOLUTION: A columnar support shaft 3a is integrally formed on a pedestal 4, and welded thereto, an arch-like hollow Bourdon tube 2 is welded to a side surface of the pedestal 4, and a tip of the Bourdon tube 2 is connected to an end of the chuck 1 by a hinge structure. When gas or liquid is ejected into the Bourdon tube 2 by the pressure set by a sensor, the Bourdon tube 2 is deflected, and the end of the chuck 1 is moved. When the pressure is applied into the Bourdon tube 2 in the relationship of the principle of leverage with a connection part A of the Bourdon tube 2 to the chuck 1 as a force-applying point, a connection part B of the support shaft 3a to the chuck 1 as a fulcrum, and the tip of the chuck 1 as a point of application, the tip of the chuck 1 is put into motion for grasping the object, and the grasping force of the object can be finely adjusted by controlling the pressure.
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