Construction machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11668069
APP PUB NO 20210040705A1
SERIAL NO

16760530

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A construction machine that can make a depressing force of a bucket during compaction work to be uniform without requiring an operator to perform a complicated operation is provided. A controller 18 determines whether or not compaction work is in progress, calculates a front distance R that represents a distance between a rotational pivot of a boom 4 and a predetermined position B in a back surface of a bucket 6, determines a target velocity of the bucket such that a velocity with which the bucket approaches a leveling target surface decreases with increasing values of the front distance, and, during the compaction work, notifies the operator of details of an operation of operation devices 9a and 9b for achieving the target velocity of the bucket or controls hydraulic actuators 4a to 6a so as to achieve the target velocity of the bucket.

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTDTOKYO JAPAN TOKYO METROPOLIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishihara, Shinji Tokyo, JP 49 333
Moriki, Hidekazu Tokyo, JP 66 330
Narikawa, Ryu Tokyo, JP 25 71
Sakamoto, Hiroshi Tsuchiura, JP 356 5045

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