CONSTRUCTION MACHINE
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United States of America Patent
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N/A
Issued Date -
Oct 19, 2023
app pub date -
Feb 10, 2022
filing date -
Mar 31, 2021
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A working mechanism (8) includes a lower boom (9), an upper boom (10), a middle arm (11), an arm (12), a working tool (13), a working tool cylinder (22), and a link (16). The working tool cylinder (22) is disposed on a lower surface (12B) side of the arm (12), and a cylinder guard (23) is fixed on a first link (17) of the link (16). The cylinder guard (23) is rotationally displaced in synchronization with an expanding or contracting operation of the working tool cylinder (22) and is interposed between the working tool (13) and the working tool cylinder (22) to protect the working tool cylinder (22).
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