Title:
WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/198183
Kind Code:
A1
Abstract:
A work vehicle comprises: a hydraulic pump driven by an engine; a hydraulic actuator driven by hydraulic fluid supplied from the hydraulic pump; a switching valve that can switch from a first state in which the hydraulic fluid supplied from the hydraulic pump is supplied to a first channel or a second state in which the hydraulic fluid supplied from the hydraulic pump is supplied to a second channel to the other state; an operation limitation device that can generate an operation signal to limit driving the hydraulic actuator; and a control device that controls the switching valve. The control device has an operation signal acquisition unit that acquires the operation signal, and a command output unit that outputs to the switching valve, on the basis of the operation signal, a control command that limits driving the hydraulic actuator while the engine is running.
Inventors:
TANAKA YUSHI (JP)
MAEDA RYOSUKE (JP)
IMAIZUMI MASAAKI (JP)
MAEDA RYOSUKE (JP)
IMAIZUMI MASAAKI (JP)
Application Number:
PCT/JP2018/015295
Publication Date:
October 17, 2019
Filing Date:
April 11, 2018
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
E02F9/20; B60S5/00; B62D5/07; E02F3/34; F15B20/00
Domestic Patent References:
| WO1998002322A1 | 1998-01-22 |
Foreign References:
| JP2014202244A | 2014-10-27 | |||
| JPH05208621A | 1993-08-20 | |||
| JP2016194331A | 2016-11-17 | |||
| JPH0642506U | 1994-06-07 | |||
| JP2009068164A | 2009-04-02 | |||
| JP2001234559A | 2001-08-31 | |||
| JP2011106269A | 2011-06-02 | |||
| JPH1122226A | 1999-01-26 | |||
| JP2000072395A | 2000-03-07 | |||
| JP2002106508A | 2002-04-10 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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