Hydraulic excavator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11739503
APP PUB NO 20210310218A1
SERIAL NO

17273803

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A hydraulic excavator is provided which makes it possible to allow an operator to surely recognize an alarm that notifies the operator of non-wearing of a seatbelt even when a work is performed in a situation in which a moving object is present around the machine. A controller outputs, when a moving object is detected and wearing of a seatbelt is detected by a seatbelt detection device, a first alarm through a notification device, outputs, when the moving object is not detected and non-wearing of the seatbelt is detected by the seatbelt detection device, a second alarm through the notification device, and outputs, when the moving object is detected and non-wearing of the seatbelt is detected by the seatbelt detection device, the second alarm preferentially over the first alarm through the notification device.

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First Claim

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Patent Owner(s)

  • HITACHI CONSTRUCTION MACHINERY CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anahara, Keiichirou Kasumigaura, JP 5 10
Hagiwara, Naoki Kasumigaura, JP 25 105
Hirasawa, Shigeru Mito, JP 13 150
Ito, Keitaro Tsuchiura, JP 12 10
Mizoguchi, Kazuhiko Ishioka, JP 15 79

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