Work machine
Number of patents in Portfolio can not be more than 2000
United States of America
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Oct 8, 2024
Grant Date -
N/A
app pub date -
Jan 14, 2020
filing date -
Jan 14, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A connection switching device (45) connects a bottom-side oil chamber (15C) of a boom cylinder (15) and a bottom-side oil chamber (16C) of an arm cylinder (16) when a boom operating device (22A) instructs the contraction of the boom cylinder (15) and an arm operating device (21B) instructs the expansion of the arm cylinder (16). The connection switching device (45) connects the bottom-side oil chamber (15C) of the boom cylinder (15) and a rod-side oil chamber (16D) of the arm cylinder (16) when the boom operating device (22A) instructs the contraction of the boom cylinder (15) and the arm operating device (21B) instructs the contraction of the arm cylinder (16).
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