Title:
TIRE REINFORCING STEEL CORD AND TIRE
Document Type and Number:
WIPO Patent Application WO/2002/079567
Kind Code:
A1
Abstract:
A (1 x n)-structure tire reinforcing steel cord which is installed by being wound at opposite side edges of the belt portion of the tire, and formed by twisting 4 to 7 strands each having a wire size of 0.20-0.45 mm, the cord having a spiral/planar waveform permanency, an elongation factor being 1.2-2.0% under a tensile load of 50 N in a tensile test based on JIS B 7721, a tensile load ranging from 50 to 250 N when the cord is linearized. The cord elongates properly by following up the expansion of the tire at tire building, and, after built, has a small elongation characteristic to thereby restrict a radial expansion caused by the high-speed continuous rotation of the tire.
Inventors:
MORIOKA NORITAKA (JP)
HARIKAE SINYA (JP)
HARIKAE SINYA (JP)
Application Number:
PCT/JP2002/003090
Publication Date:
October 10, 2002
Filing Date:
March 28, 2002
Export Citation:
Assignee:
TOKUSEN KOGYO KK (JP)
YOKOHAMA RUBBER CO LTD (JP)
MORIOKA NORITAKA (JP)
HARIKAE SINYA (JP)
YOKOHAMA RUBBER CO LTD (JP)
MORIOKA NORITAKA (JP)
HARIKAE SINYA (JP)
International Classes:
B60C9/00; B60C9/20; B60C9/22; D07B1/06; (IPC1-7): D07B1/06
Foreign References:
| US6065518A | 2000-05-23 | |||
| JPH11198605A | 1999-07-27 | |||
| EP0335588A2 | 1989-10-04 | |||
| JPH1044713A | 1998-02-17 | |||
| US5707467A | 1998-01-13 | |||
| EP0604228A1 | 1994-06-29 |
Attorney, Agent or Firm:
Ochiai, Takeshi (Taito 2-chome Taito-ku, Tokyo, JP)
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