Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/070579
Kind Code:
A1
Abstract:
A wheel loader (10) comprises a vehicle body (20), lift cylinders (16), a hydraulic circuit (61), an accumulator (63), and a controller (27). The vehicle body (20) has a work machine (3). The lift cylinders (16) drive the work machine (3). The hydraulic circuit (61) is connected to the lift cylinders (16). The accumulator (63) is connected to the hydraulic circuit (61) via an opening/closing valve (62). The controller (27) switches the opening/closing valve (62) to the open position when pitching is predicted to occur in the vehicle body (20).
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Inventors:
KITAO SHINICHI (JP)
OKABE KAZUYOSHI (JP)
OKABE KAZUYOSHI (JP)
Application Number:
PCT/JP2021/028122
Publication Date:
April 07, 2022
Filing Date:
July 29, 2021
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
E02F9/22; B60T7/12; E02F9/24; E02F9/26; F16F9/28; F16F9/50; F16F15/02; G08G1/16
Foreign References:
| JP2013127187A | 2013-06-27 | |||
| JP2011001712A | 2011-01-06 | |||
| JP2020149472A | 2020-09-17 | |||
| JPH07119179A | 1995-05-09 | |||
| JPH05209422A | 1993-08-20 |
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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