Title:
SHOVEL
Document Type and Number:
WIPO Patent Application WO/2020/203851
Kind Code:
A1
Abstract:
Provided is a shovel that calculates the weight of a loaded object while limiting the number of sensors. This shovel is provided with an attachment attached to an upper rotating body, and a control device. The control device has a center of gravity estimating unit that estimates the center of gravity of a loaded object loaded onto the attachment, and a weight calculating unit that calculates the weight of the loaded object on the basis of the estimated center of gravity of the loaded object.
Inventors:
SANO YUSUKE (JP)
WU CHUNNAN (JP)
HIRANUMA KAZUNORI (JP)
WU CHUNNAN (JP)
HIRANUMA KAZUNORI (JP)
Application Number:
PCT/JP2020/014224
Publication Date:
October 08, 2020
Filing Date:
March 27, 2020
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
E02F9/20; E02F9/26; G01G19/08; G01G19/16
Foreign References:
| JPH11230820A | 1999-08-27 | |||
| JPH0783740A | 1995-03-31 | |||
| JPH04176918A | 1992-06-24 | |||
| JPH0610378A | 1994-01-18 | |||
| JP2019069240A | 2019-05-09 |
Other References:
See also references of EP 3951090A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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