LOAD MEASURING DEVICE FOR CONSTRUCTION MACHINE - HITACHI CONSTRUCTION MACH CO

Title:

LOAD MEASURING DEVICE FOR CONSTRUCTION MACHINE

Document Type and Number:

WIPO Patent Application WO/2016/189654

Kind Code:

A1

Abstract:

Provided is a novel load weight measuring device for a construction machine, whereby measurement precision can be further enhanced by monitoring the state of a suspension cylinder. The present invention is provided with a live load weight computation means 111 for computing a live load weight on the basis of the load of a plurality of suspension cylinders 51, and a live load weight confirmation means 112 for outputting the computed live load weight when the loads of the suspension cylinders 51 are all equal to or greater than a control value and nullifying the computed live load weight and not outputting the computed live load weight when even one of the loads is less than the control value. Through this configuration, when even one of the loads of the suspension cylinders 51 is less than the control value, a determination is made that the front-rear left-right balance of a vehicle body 10 is unsatisfactory, and because the computed live load weight is nullified and not outputted, a measurement having a large error can be avoided.

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Inventors:

MINOSHIMA TOSHIKAZU (JP)

Application Number:

PCT/JP2015/065098

Publication Date:

December 01, 2016

Filing Date:

May 26, 2015

Export Citation:

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Assignee:

HITACHI CONSTRUCTION MACH CO (JP)

International Classes:

G01G19/10; B60P1/04; B60P5/00

Foreign References:

JP2010190617A	2010-09-02
JP2005061984A	2005-03-10
JPH026717A	1990-01-10
JPH10253430A	1998-09-25

Other References: