Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/219069
Kind Code:
A1
Abstract:
The swinging position of a work implement (24) is appropriately determined in accordance with the state of the work implement (24). A work machine (1) comprises: an arm (23); a work implement (24) that is swingably attached to the arm (23); a work implement cylinder (C5) that is supported at one end on the arm (23) via a cylinder shaft (35), is supported at the other end on the work implement (24), and causes the work implement (24) to swing by extending and retracting; a cylinder sensor (80) that detects the operation of the work implement cylinder (C5); a control valve (72) that causes the work implement cylinder (C5) to retract by controlling the flow of hydraulic fluid to the work implement cylinder (C5); and a control device (71) that periodically determines the swing position of the work implement (24) on the basis of a value output by the cylinder sensor (80), the control device (71) changing the accuracy of determining the swing position of the work implement (24) in accordance with the operating state of the work implement cylinder (C5).
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Inventors:
MORI HIROYA (JP)
Application Number:
PCT/JP2023/017352
Publication Date:
November 16, 2023
Filing Date:
May 09, 2023
Export Citation:
Assignee:
KUBOTA KK (JP)
International Classes:
E02F9/20; E02F9/26
Domestic Patent References:
| WO2015186179A1 | 2015-12-10 |
Foreign References:
| JP2012233353A | 2012-11-29 | |||
| JP2014074319A | 2014-04-24 |
Attorney, Agent or Firm:
YASUDA & OKAMOTO IP LAW FIRM (JP)
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