Title:
HYDRAULIC MOTION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2009127699
Kind Code:
A
Abstract:
To provide a hydraulic motion control device capable of suppressing the degradation of the function of holding the motion stop state of an object to be controlled by eliminating the effect of a negative pressure on a pressure valve.
This hydraulic motion control device includes a unidirectional third valve 63 which is installed in a fifth passage 55 and which stops the inflow of oil into a fifth chamber 25 through the fifth passage 55 and a unidirectional fourth valve 64 which is installed in a sixth passage 56 and which stops the inflow of oil into the fifth chamber 25 through the sixth passage 56.
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Inventors:
SUGANO HIDENORI
SHIMURA RYOTA
ITAGAKI MASANORI
NAGASHIMA YOSHIHIKO
SHIMURA RYOTA
ITAGAKI MASANORI
NAGASHIMA YOSHIHIKO
Application Number:
JP2007301694A
Publication Date:
June 11, 2009
Filing Date:
November 21, 2007
Export Citation:
Assignee:
SOMIC ISHIKAWA INC
International Classes:
F16F9/14
Attorney, Agent or Firm:
Patent Business Corporation Sender International Patent Office