Title:
POWER FEED SYSTEM FOR ELECTRIC CONSTRUCTION MACHINERY
Document Type and Number:
WIPO Patent Application WO/2024/070368
Kind Code:
A1
Abstract:
To provide a power feed system for electric construction machinery, in which work efficiency of the electric construction machinery can be improved while preventing damage of a power feed cable. This power feed system comprises: a cable drum for performing paying out and winding up a power feed cable from an external power source; a drum sensor; a rotational angle sensor for detecting a routing direction of the power feed cable with respect to an electric power shovel; a monitor; and a controller. The controller computes a wound-up length of the power feed cable that is wound up on the cable drum, on the basis of a rotational amount of the cable drum detected by the drum sensor, and also displays this wound-up length and the routing direction that is detected by the rotational angle sensor on the monitor at the same time.
Inventors:
TAKAGI WATARU (JP)
ISHII TAKESHI (JP)
OOMIYA TAKEYUKI (JP)
KAWAGUCHI HIROSHI (JP)
ISHII TAKESHI (JP)
OOMIYA TAKEYUKI (JP)
KAWAGUCHI HIROSHI (JP)
Application Number:
PCT/JP2023/030620
Publication Date:
April 04, 2024
Filing Date:
August 24, 2023
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD (JP)
International Classes:
E02F9/00; B60L3/00; B60L50/53
Foreign References:
| JP2017014687A | 2017-01-19 | |||
| JP2010065445A | 2010-03-25 | |||
| JP2018017011A | 2018-02-01 | |||
| KR20120114879A | 2012-10-17 | |||
| JP2008190231A | 2008-08-21 | |||
| US20120136564A1 | 2012-05-31 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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