Title:
STEEL CORD FOR REINFORCING RUBBER ARTICLE AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2007/026825
Kind Code:
A1
Abstract:
A steel cord for reinforcing a rubber article capable of simultaneously satisfying
such requirements as a reduction in weight, an increase in durability, and an
increase in steering stability without causing the lowering of the uniformity
of tire by applying it to a tire belt as a reinforcement material and a pneumatic
tire. The steel cord comprises a core formed by disposing two pieces of untwisted
core wire (1) parallel with each other in the longitudinal direction and one layer
of sheath formed by twisting three to five pieces of sheath wire (2) around the
core. The shape of the profile of the cord is flat in a cross section crossing perpendicularly
to the axis of the cord. The diameter of the core wire (1) is smaller than the diameter
of the sheath wire (2).
Inventors:
OBANA, Naohiko (800 Shimonakano, Nasushiobara-sh, Tochigi 46, 3293146, JP)
Application Number:
JP2006/317225
Publication Date:
March 08, 2007
Filing Date:
August 31, 2006
Export Citation:
Assignee:
BRIDGESTONE CORPORATION (10-1, Kyobashi 1-chome Chuo-ku Tokyo, 31, 1040031, JP)
株式会社ブリヂストン (〒31 東京都中央区京橋１丁目１０番１号 Tokyo, 1040031, JP)
株式会社ブリヂストン (〒31 東京都中央区京橋１丁目１０番１号 Tokyo, 1040031, JP)
International Classes:
D07B1/06; B60C9/00; B60C9/20; D07B1/00; B60C9/00; B60C9/20
Attorney, Agent or Firm:
HONDA, Ichiro (No.201, Kanda Chuo Building 2F 5-7, Nishikanda 2-chom, Chiyoda-ku Tokyo 65, 1010065, JP)
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