Title:
ELEVATOR MAIN ROPE AND ELEVATOR DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2016/199204
Kind Code:
A1
Abstract:
The present invention provides an elevator main rope (2) the service life of which is improved. This elevator main rope (2) comprises: an independent wire rope core (IWRC) that has a core strand (7), a plurality of side strands (8A-8F) disposed around the core strand (7), and a covering resin (9) that covers the core strand (7) and the plurality of side strands (8A-8F); and a plurality of main strands (10A-10J) that are disposed around the IWRC. The plurality of side strands (8A-8F) are disposed at equal intervals on the circumference of an imaginary circle center layer (11) on which each of the centers of the plurality of side strands (8A-8F) is positioned. The percentage of the sum of the gaps (a) between two side strands (8A-8F), from the plurality of side strands (8A-8F), that are adjacent in the circumferential direction of the imaginary circle center layer (11) with respect to the total circumference of the imaginary circle center layer (11) is no less than 8.5%, or the percentage of the gap (b) between each imaginary circumscribed circle of the plurality of side strands (8A-8F) and the imaginary inscribed circle (12) of the plurality of main strands (10A-10J) with respect to the radius of the imaginary inscribed circle (12) of the plurality of main strands (10A-10J) is no less than 3.0%.
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Inventors:
NAKAYAMA MASATO (JP)
MATSUMOTO TOSHIAKI (JP)
MATSUMOTO TATSUYA (JP)
FURUKAWA IPPEI (JP)
NAKAMOTO YOUHEI (JP)
MATSUMOTO TOSHIAKI (JP)
MATSUMOTO TATSUYA (JP)
FURUKAWA IPPEI (JP)
NAKAMOTO YOUHEI (JP)
Application Number:
PCT/JP2015/066518
Publication Date:
December 15, 2016
Filing Date:
June 08, 2015
Export Citation:
Assignee:
HITACHI LTD (JP)
TOKYO ROPE MFG CO (JP)
TOKYO ROPE MFG CO (JP)
International Classes:
B66B7/06; D07B1/04
Foreign References:
| JP2003041493A | 2003-02-13 | |||
| JP2008248426A | 2008-10-16 | |||
| JP2002327381A | 2002-11-15 |
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)
Polaire Intellectual Property Corporation (JP)
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