US 7,596,937 B2
Rubber product-reinforcing metallic cord and method for manufacturing such a cord
Kenichi Okamoto, Hyogo (Japan); Yasuo Sakai, Tochigi (Japan); and Kazuhiko Saito, Tochigi (Japan)
Assigned to Sumitomo (SEI) Steel Wire Corp., Hyogo (Japan); and Sumitomo Electric Tochigi Co., Ltd., Tochigi (Japan)
Appl. No. 11/547,717
PCT Filed Apr. 07, 2005, PCT No. PCT/JP2005/006855
§ 371(c)(1), (2), (4) Date Feb. 12, 2008,
PCT Pub. No. WO2005/098126, PCT Pub. Date Oct. 20, 2005.
Claims priority of application No. 2004-113896 (JP), filed on Apr. 08, 2004; application No. 2004-114112 (JP), filed on Apr. 08, 2004; and application No. 2005-065823 (JP), filed on Mar. 09, 2005.
Prior Publication US 2008/0223015 A1, Sep. 18, 2008
Int. Cl. D02G 3/22 (2006.01); D02G 3/48 (2006.01)
U.S. Cl. 57—210  [57/212; 57/237] 16 Claims
OG exemplary drawing
 
1. A rubber product-reinforcing metallic cord comprising a first pre-strand comprising a first metallic filament and a second metallic filament helically wrapped around said first metallic filament, and a fifth metallic filament, said first pre-strand and said fifth metallic filament being twisted together with a twist pitch P wherein said second metallic filament is wrapped around said first metallic filament with a pitch p1 which satisfies, with respect to the twist pitch P of the cord, the relation 0.922≤p1/ P≤0.991.