Wheel loader

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11913190
APP PUB NO 20210317632A1
SERIAL NO

17271748

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a wheel loader capable of reducing erroneous determination of rear wheel lifting. The wheel loader 1 includes a controller 5 for determining a rear wheel lifting state where rear wheels 11B are lifted upwardly. The controller 5 is configured to, when a temporal change rate α of a bucket operation angle becomes a temporal change rate of a bucket operation angle necessary for a tilt operation of a bucket 23 during an excavation operation and a temporal change rate β of a vehicle body inclination angle estimated by the controller 5 becomes a temporal change rate of an obliquely upward inclination state of a rear vehicle body with respect to a front vehicle body, turn on a correlation flag indicating a correlation between an operation state of the bucket 23 and an inclination state of a vehicle body to determine a rear wheel lifting.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTD16-1 HIGASHIUENO 2-CHOME TAITO-KU TOKYO 1100015 JAPAN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Kazuyuki Kobe, JP 94 1011
Urimoto, Yoshikazu Kakogawa, JP 1 0

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Aug 27, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 27, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 27, 2035
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Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00