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Patent Searching and Data


Title:
HYDRAULIC CONTROLLER
Document Type and Number:
Japanese Patent JPH06300001
Kind Code:
A
Abstract:

PURPOSE: To provide a hydraulic controller capable of automatic hydraulic control in a wide range and operation of an actuator with a manual operation under the automatic hydraulic control condition outside the operational range in the control.

CONSTITUTION: A controlling valve 20, a manual operation inputting member 55, an automatic operating means 30 for operating a balve body 21 of the controlling valve 20 by a swing lever 31, a pivotal member 41 pivotable about a pivotal center 41b to displace a swing support part 41a of a swing fulcrum of the swing lever 31, a pivoting regulating means 45 for regulating the pivoting of the pivotal member 41 within a predetermined torque range and a shift restraining means 60 for restraining the shift of a second intermediate point 51c of a link member 51 are provided. When an input member 55 is not operated, the positions of a support part 41a and a first intermediate point 51b of the link member 51 are held by the pivoting regulating means 45, and in the manual operation, the pivotal regulation by the pivoting regulating means 45 is released through the link members 51, 52 by the operation to swing the swing lever 31 with the displacement of the support part 41a.


Inventors:
KOIZUMI TAKASHI
KAMIMURA TOSHIO
KIMURA YOSHIHIRO
ITO AKIRA
Application Number:
JP8426893A
Publication Date:
October 25, 1994
Filing Date:
April 12, 1993
Export Citation:
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Assignee:
TEIJIN SEIKI CO LTD
International Classes:
B64C13/18; B64C13/40; F15B9/08; F15B9/09; F15B20/00; (IPC1-7): F15B9/09; B64C13/18; B64C13/40; F15B9/08; F15B20/00
Attorney, Agent or Firm:
Ariga Gunichiro