Title:
CHUCK DEVICE FOR ROBOT HAND OF ARM ROBOT
Document Type and Number:
WIPO Patent Application WO/2018/092180
Kind Code:
A1
Abstract:
A chuck device for a robot hand of an arm robot comprising: a cylinder body (41) in which an extension-side port and a contraction-side port for supplying and discharging hydraulic oil are formed; a piston (42) with attached rod, which is inserted in the cylinder body so that the rod portion protrudes and which is displaced by oil pressure in a pair of pressure chambers that are in communication with the extension-side port or the contraction-side port; a pressure-maintaining cylinder wherein the piston with attached rod serves as the pressure-maintaining cylinder body, a pressure-maintaining piston is inserted therein, and the pressure-maintaining piston is displaced toward the leading end of the rod portion by oil pressure in a pressure-maintaining pressure chamber that is in communication with pressure-maintaining ports formed in the pressure-maintaining cylinder body; a biasing member placed in a leading end space inside the pressure-maintaining cylinder body so as to bias the pressure-maintaining piston towards the pressure-maintaining pressure chamber; and a chuck mechanism, which is connected to the rod portion protruding from the cylinder and which opens and closes multiple chuck jaws by the displacement of the piston with attached rod.
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Inventors:
MIZUTA KENJI (JP)
Application Number:
PCT/JP2016/083744
Publication Date:
May 24, 2018
Filing Date:
November 15, 2016
Export Citation:
Assignee:
FUJI CORP (JP)
International Classes:
B25J15/08
Foreign References:
| JPS62110891U | 1987-07-15 | |||
| JPH06226517A | 1994-08-16 | |||
| JP2008240849A | 2008-10-09 | |||
| JPH07237167A | 1995-09-12 |
Attorney, Agent or Firm:
HIROTA, Akihiro (JP)
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