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Title:
ACTUATOR UNIT
Document Type and Number:
WIPO Patent Application WO/2014/132732
Kind Code:
A1
Abstract:
An actuator unit is provided with: a rod-side chamber and a piston-side chamber, which are separated by a piston; a tank; a first opening/closing valve which connects and disconnects the rod-side chamber and the piston-side chamber; a second opening/closing valve which connects and disconnects the piston-side chamber and the tank; a suction passage which permits liquid to flow from the tank to the piston-side chamber; a flow regulation passage which permits liquid to flow from the piston-side chamber into the rod-side chamber; a pump which supplies liquid to the rod-side chamber; first and second discharge passages which connect the rod-side chamber to the tank; a first passive valve which is provided in the first discharge passage; a second passive valve which is provided in the second discharge passage; and a third opening/closing valve which opens and closes the first discharge passage.

Inventors:
OGAWA TAKAYUKI (JP)
Application Number:
PCT/JP2014/051958
Publication Date:
September 04, 2014
Filing Date:
January 29, 2014
Export Citation:
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Assignee:
KAYABA INDUSTRY CO LTD (JP)
International Classes:
F15B15/18; B61F5/24; F15B11/00; F15B11/028
Foreign References:
JP2010065797A2010-03-25
JPS5841798U1983-03-19
JP2011089537A2011-05-06
JP2002066800A2002-03-05
JPS5670359U1981-06-10
JPS50127172U1975-10-18
JPS61244903A1986-10-31
JPS5943567U1984-03-22
JPS61294031A1986-12-24
JP2001065504A2001-03-16
JPH1073101A1998-03-17
JP2009180377A2009-08-13
JP2010065797A2010-03-25
Other References:
See also references of EP 2963303A4
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
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