WORK MACHINE
Number of patents in Portfolio can not be more than 2000
United States of America
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N/A
Issued Date -
Jan 23, 2020
app pub date -
Oct 31, 2017
filing date -
Oct 31, 2017
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A work machine includes: control valves that control flows of a hydraulic operating oil supplied to actuators; operation lever devices that generate hydraulic signals to be output to the corresponding control valves according to an operation; solenoid proportional valves that reduce pressure of the hydraulic signals generated by the corresponding operation lever devices; and a front implement control section that controls the solenoid proportional valves. The work machine further includes: operation signal lines connected to the operation lever devices; signal input lines connected to the control valves; pressure reducing lines provided with the solenoid proportional valves; and selector valves that have a first position that interrupts connection of the operation signal lines and the pressure reducing lines and directly connects the operation signal lines to the signal input lines, and a second position that connects the operation signal lines to the signal input lines via the pressure reducing lines.
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Family
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Cited Art Landscape
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