Title:
OIL PRESSURE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/004300
Kind Code:
A1
Abstract:
The present invention provides an oil pressure control device in which a neutral position, a first function position, and a second function position are arranged in the order listed, wherein an action corresponding to the second function position can be performed without causing an action corresponding to the first function position to be performed from the neutral position. The oil pressure control device is provided with an electromagnetic proportional valve PV used for a switching action of a switching control valve (26, 32), a control unit that controls the functioning of the electromagnetic proportional valve PV on the basis of an operation command for an operating tool, and a mode-switching means capable of switching a control mode. The operating tool can be operated to one side area, a neutral area, and another side area. When the operating tool is operated to the other side area in the first mode, the control unit supplies an electric current value corresponding to an other-side first function position (Ph, Dw) to the electromagnetic proportional valve PV, and when the operating tool is operated to the other side area in the second mode, the control unit supplies an electric current value corresponding to an other-side second function position (Pd, Fr) to the electromagnetic proportional valve PV.
More Like This:
| JPS53131370 | OIL PRESSURE CIRCUIT |
Inventors:
OYANAGI RYOSUKE (JP)
NISHIKAWA SEIMEI (JP)
NAGATOMI YUICHI (JP)
SUGA HIROKI (JP)
NISHIKAWA SEIMEI (JP)
NAGATOMI YUICHI (JP)
SUGA HIROKI (JP)
Application Number:
PCT/JP2023/012382
Publication Date:
January 04, 2024
Filing Date:
March 28, 2023
Export Citation:
Assignee:
KUBOTA KK (JP)
International Classes:
F15B11/08; E02F9/20
Foreign References:
| JP2000054423A | 2000-02-22 |
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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