Loaded weight measurement method and loaded weight measurement device for dump truck
First Claim
1. A loaded weight measurement device provided in a dump truck, comprising a set of equalizer bars respectively provided rotatably on the left and right-hand sides of a vehicle body;
- first vehicle wheels supported respectively by means of first suspension devices on one side of each equalizer bar;
second vehicle wheels supported respectively by means of second suspension devices on the other side of each equalizer bar; and
third vehicle wheels provided respectively on the left and right-hand sides of said vehicle body separately from said equalizer bars, and being supported respectively by means of third suspension devices, said loaded weight measurement device comprising;
a first load detecting section for detecting a first load applied to either said first suspension device or said second suspension device;
a second load detecting section for detecting a second load applied to the third suspension device;
an inclination angle detecting means provided in said vehicle body for detecting an angle of inclination of said vehicle body; and
an overall load calculating section for calculating an overall load in response to said first load, said second load and said angle of inclination.
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Abstract
To measure the loaded weight of a dump truck, accurately and inexpensively. In a dump truck comprising a set of equalizer bars respectively provided rotatably on the left and right-hand sides of a vehicle body; first vehicle wheels supported respectively by means of first suspension devices on one side of each equalizer bar; second vehicle wheels supported respectively by means of second suspension devices on the other side of each equalizer bar; and third vehicle wheels provided respectively on the left and right-hand sides of the vehicle body separately from the equalizer bars, and being supported respectively by means of third suspension devices; a first load applied to the second suspension device is detected; a second load applied to the third suspension device is detected; the angle of inclination of the vehicle body is detected; and a loaded weight is calculated on the basis of the first and second loads, and the angle of inclination.
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Citations
7 Claims
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1. A loaded weight measurement device provided in a dump truck, comprising a set of equalizer bars respectively provided rotatably on the left and right-hand sides of a vehicle body;
- first vehicle wheels supported respectively by means of first suspension devices on one side of each equalizer bar;
second vehicle wheels supported respectively by means of second suspension devices on the other side of each equalizer bar; and
third vehicle wheels provided respectively on the left and right-hand sides of said vehicle body separately from said equalizer bars, and being supported respectively by means of third suspension devices, said loaded weight measurement device comprising;a first load detecting section for detecting a first load applied to either said first suspension device or said second suspension device; a second load detecting section for detecting a second load applied to the third suspension device; an inclination angle detecting means provided in said vehicle body for detecting an angle of inclination of said vehicle body; and an overall load calculating section for calculating an overall load in response to said first load, said second load and said angle of inclination. - View Dependent Claims (3, 4, 5, 6, 7)
- first vehicle wheels supported respectively by means of first suspension devices on one side of each equalizer bar;
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2. A dump truck, comprising:
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a vehicle body; a vessel provided on the vehicle body; a set of equalizer bars respectively provided rotatably on the left and right-hand side of said vehicle body; first vehicle wheels supported respectively by means of first suspension devices on one side of each equalizer bar; second vehicle wheels supported respectively by means of second suspension devices on the other side of each equalizer bar; third vehicle wheels provided respectively on the left and right-hand sides of said vehicle body separately from said equalizer bars, and being supported respectively by means of third suspension devices; first load detecting means for detecting a first load applied to either said first suspension device or said second suspension device; second load detecting means for detecting a second load applied to said third suspension device; inclination angle detecting means for detecting the angle of inclination of said vehicle body; control means for calculating the loaded weight of said vessel on the basis of said first and second loads and said angle of inclination; and output means for outputting said loaded weight calculated by the control means.
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Specification