| 摘要 |
PCT No. PCT/JP81/00267 Sec. 371 Date Jun. 4, 1982 Sec. 102(e) Date Jun. 4, 1982 PCT Filed Oct. 7, 1981 PCT Pub. No. WO82/01155 PCT Pub. Date Apr. 15, 1982.A device for operating a hand of an industrial robot is so constructed that fluid pressure cylinders (43, 44) are provided as a driving mechanism of the hand (4) of the industrial robot, branch passages including a pressure-reducing valve (47) are provided in a fluid supply passage to the fluid pressure cylinders (43, 44), the supply of fluid is switched by solenoid valves (SV2, SV3, SV4), and the switching of the solenoid valves (SV2, SV3, SV4) is carried out in accordance with the selected grasping force which has been selected in the teaching mode of the industrial robot, whereby the grasping force of the hand can be controlled stepwisely.
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