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Title:
電動巻上機及び電動巻上機におけるワイヤロープ溝の摩耗検知方法
Document Type and Number:
Japanese Patent JP6776166
Kind Code:
B2
Abstract:
To automatically or visually detect the abrasion of a wire rope groove on an electrically-driven hoist.SOLUTION: This electrically-driven hoist has: a drum 53 on which a wire rope 52 for suspending a load is wound; and a motor that lifts/lowers the load by rotating the drum 53 to vertically move the wire rope 52 wound on the drum 53. The drum 53 has a wire rope groove 1 through which the wire rope 52 passes, and a step 4 is formed in the groove bottom 2 of the wire rope groove 1.SELECTED DRAWING: Figure 3

Inventors:
Naoki Goto
Application Number:
JP2017064484A
Publication Date:
October 28, 2020
Filing Date:
March 29, 2017
Export Citation:
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Assignee:
Hitachi Industrial Equipment Systems Co., Ltd.
International Classes:
B66D5/30; B66B11/08
Domestic Patent References:
JP6166492A
JP55089181A
JP2011213479A
JP2003104667A
JP2014156318A
JP1235801A
JP2017003410A
JP2008050140A
Attorney, Agent or Firm:
Aoritsu patent business corporation