Boots – shoes – and leggings
Patent
1983-11-30
1986-12-02
Gruber, Felix D.
Boots, shoes, and leggings
340685, 364463, G06F 1532, G06G 768, E02F 926
Patent
active
046270132
ABSTRACT:
A load weight calculating system for a load moving machine, such as a hydraulic excavator, including a support, and a front attachment pivotably supported by the support. The front attachment includes a first linkage element pivotably supported by the support, a second linkage element pivotably supported by the first linkage element, a loading section supported by the second linkage element, and first and second hydraulic actuators for moving the first and second linkage elements, respectively. The load weight calculating system includes a first displacement detector and a second displacement detector for obtaining displacements .alpha..sub.1 and .beta..sub.1 of at least the first and second linkage elements, respectively, a pressing force sensor for obtaining a pressing force K.sub.1 exerted by at least one of the first and second hydraulic actuators, a weight calculating unit for calculating the weight of a load carried by the loading section based on the values .alpha..sub.1, .beta..sub.1 and K.sub.1 obtained at least by the first and second displacement detector and pressing force sensor, and a weight indicating unit for indicating a value associated with the load weight obtained by the weight calculating unit.
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patent: 4133032 (1979-01-01), Spurling
patent: 4185280 (1980-01-01), Wilhelm
patent: 4332517 (1982-06-01), Igarashi et al.
Aoyagi Yukio
Ichiyama Shuichi
Yasuda Tomohiko
Gruber Felix D.
Hitachi Construction Machinery Co. Ltd.
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