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Patent Searching and Data


Title:
EXCAVATOR
Document Type and Number:
WIPO Patent Application WO/2021/006349
Kind Code:
A1
Abstract:
Provided is an excavator that precisely calculates the weight of a loaded object. The excavator comprises an attachment that is mounted to an upper turning body, a first actuator and a second actuator that drive the attachment, and a control device. The control device has a first weight calculation unit that calculates, on the basis of the first actuator, the weight of a loaded object loaded on the attachment as a first weight, and a second weight calculation unit that calculates, on the basis of the second actuator, the weight of the loaded object as a second weight.

Inventors:
SANO YUSUKE (JP)
WU CHUNNAN (JP)
HIRANUMA KAZUNORI (JP)
Application Number:
PCT/JP2020/027119
Publication Date:
January 14, 2021
Filing Date:
July 10, 2020
Export Citation:
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Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
E02F9/20; G01G19/10
Foreign References:
JPH11230821A1999-08-27
JP2000291078A2000-10-17
JP2002004337A2002-01-09
JPS62189222A1987-08-19
JP2009243157A2009-10-22
JP2007178362A2007-07-12
US4499960A1985-02-19
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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