Title:
ELECTRIC WINCH DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/056026
Kind Code:
A1
Abstract:
Provided is an electric winch device in which irregular winding of a wire rope caused by the landing of a wound-down suspended load can be prevented. This electric winch device is provided with: a winch drum (5) around which a wire rope (2) is wound; an electric motor (8) that rotates the winch drum (5); an operating lever (13a); a measuring unit (18) that measures a tension index value corresponding to the tension of the wire rope (2); and a controller (12) that controls the operation of the electric motor (8). The controller (12) stops the operation of the electric motor (8) when the average value of the tension of the wire rope (2) is equal to or less than a predetermined reference tension value in a state in which an operation in the unwinding direction is applied to the operating lever (13a), the average value of the tension of the wire rope (2) corresponding to the average value of the tension index value over a predetermined time period.
Inventors:
OGAWA TETSUYA
SASAI SHINTAROH
INOUE KOJI
HIEKATA TAKASHI
SASAI SHINTAROH
INOUE KOJI
HIEKATA TAKASHI
Application Number:
PCT/JP2017/031688
Publication Date:
March 29, 2018
Filing Date:
September 04, 2017
Export Citation:
Assignee:
KOBELCO CONSTR MACH CO LTD (JP)
KOBE STEEL LTD (JP)
KOBE STEEL LTD (JP)
International Classes:
B66D1/54; B66C15/00
Domestic Patent References:
| WO2011088832A1 | 2011-07-28 |
Foreign References:
| JP2015098390A | 2015-05-28 | |||
| JP2007290799A | 2007-11-08 | |||
| KR20060064123A | 2006-06-13 |
Other References:
See also references of EP 3498656A4
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (JP)
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