Title:
ELECTRIC CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/070255
Kind Code:
A1
Abstract:
Provided is an electric construction machine with which damage to a power supply cable can be reduced. An electric shovel of the present invention comprises: a turning angle sensor that detects the turning angle of a turning body; a cable stand disposed on the turning body, and having a holding part that holds a power supply cable; a rotation angle sensor that detects the rotation angle of the holding part of the cable stand; a turning lock valve; and a controller. The controller calculates the position of the holding part of the cable stand on the basis of the detection results from the turning angle sensor and the rotation angle sensor when a state in which the power supply cable is connected to a power supply port is detected by a connection sensor. Then, when the calculated position of the holding part is out of a predetermined range, the turning lock valve is controlled into a shut-off state to prohibit the turning body from turning.
Inventors:
KUWAHARA TAKUMA (JP)
KIHARA SEIICHI (JP)
KIMURA SHOGO (JP)
KIHARA SEIICHI (JP)
KIMURA SHOGO (JP)
Application Number:
PCT/JP2023/029008
Publication Date:
April 04, 2024
Filing Date:
August 08, 2023
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD (JP)
International Classes:
E02F9/00; E02F9/20; E02F9/22
Foreign References:
| JP2018084099A | 2018-05-31 | |||
| JP2008190231A | 2008-08-21 | |||
| JP2010065445A | 2010-03-25 | |||
| JP2017002625A | 2017-01-05 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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