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Title:
ANNULAR METALLIC CORD, ENDLESS METALLIC BELT, AND PROCESS FOR PRODUCING ANNULAR METALLIC CORD
Document Type and Number:
WIPO Patent Application WO2010109735
Kind Code:
A1
Abstract:
An annular metallic cord in which the twisted state does not get loose and the wound shape can be maintained even when the cord undergoes successive repetitions of a load; an endless metallic belt; and a process for producing an annular metallic cord. The annular metallic cord (C1) is one obtained by untwisting a metallic cord (20) comprising a plurality of twisted strands (1, 2), dividing the strands into two groups of wires which differ in total sectional area, the group of strands (1) with a larger total sectional area being a reuse wire group (3) and the group of strands (2) with a smaller total sectional area being a nonuse wire group (4), and while looping one strand out of the reuse wire group (3) so as to make multiple laps, winding the remaining part (1e) by fitting the remaining part (1e) into the spiral hollow (5) of the annular part (1d) formed by the looping, the spiral hollow (5) being attributable to the nonuse of both the other strands (1) of the reuse wire group (3) and the nonuse wire group (4).

Inventors:
OKAMOTO KENICHI (JP)
WAKAHARA HITOSHI (JP)
Application Number:
JP2009071539W
Publication Date:
September 30, 2010
Filing Date:
December 25, 2009
Export Citation:
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Assignee:
SUMITOMO ELECTRIC TOCHIGI CO., LTD.
OKAMOTO, KENICHI
WAKAHARA, HITOSHI
International Classes:
D07B1/18; B21F37/00; D07B1/06; D07B7/18
Domestic Patent References:
WO2008029857A1
Foreign References:
JP2009275338A
JP2009281583A
JPH09273088A
JP2007154401A
Attorney, Agent or Firm:
NISHIMA, Hideaki et al. (c/o Sumitomo Electric Industries, Ltd., 1-3, Shimaya 1-chome, Konohana-ku, Osaka-shi, Osaka, JP)
Hideaki Futajima (1-1-3, Shimaya, Konohana-ku, Osaka-shi, Osaka, 5540024 Inside Osaka of Sumitomo Electric Industries, Ltd., JP)
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