Title:
ANNULAR CONCENTRICALLY TWISTED BEAD CORD
Document Type and Number:
WIPO Patent Application WO/2006/004054
Kind Code:
A1
Abstract:
An annular concentrically twisted bead cord reduced in weight and cost and improved
in molding properties and annular core corrosive resistance. The annular core
(1) is formed of a medium carbon steel or an alloy steel obtained by suppressing
carbon content and adding the proper amounts of specified elements thereto.
The diameter (dc) of the annular core (1) to the diameter (ds)
of peripheral wires (2) meets the requirement of the expression, 1.04 ≤
dc/ds ≤ 1.30, and the peripheral wires (2) with a
coil diameter of 0.5 to 1.3 times the coil diameter of the annular core (1) are used
to provide the bead cord reduced in weight and cost and improved in molding properties.
Also, an Al-Zn alloy plating or a thick Zn plating layer is formed on the surface
of the steel wire of the annular core (1) or a stainless steel is used as the material
of the annular core (1) to increase the corrosive resistance of the annular core
(1).
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Inventors:
SASABE, Hiroshi (18-4 Kiyohara-Kogyodanchi, Utsunomiya-sh, Tochigi 31, 3213231, JP)
笹部 博史 (〒31 栃木県宇都宮市清原工業団地１８番４ 栃木住友電工株式会社内 Tochigi, 3213231, JP)
WAKAHARA, Hitoshi (18-4 Kiyohara-Kogyodanchi, Utsunomiya-sh, Tochigi 31, 3213231, JP)
笹部 博史 (〒31 栃木県宇都宮市清原工業団地１８番４ 栃木住友電工株式会社内 Tochigi, 3213231, JP)
WAKAHARA, Hitoshi (18-4 Kiyohara-Kogyodanchi, Utsunomiya-sh, Tochigi 31, 3213231, JP)
Application Number:
JP2005/012227
Publication Date:
January 12, 2006
Filing Date:
July 01, 2005
Export Citation:
Assignee:
SUMITOMO(SEI) STEEL WIRE CORP. (1-1 Koyakita 1-chome, Itami-shi Hyogo, 16, 6640016, JP)
住友電工スチ－ルワイヤ－株式会社 (〒16 兵庫県伊丹市昆陽北一丁目１番１号 Hyogo, 6640016, JP)
SUMITOMO ELECTRIC TOCHIGI CO. LTD. (18-4, Kiyohara-Kogyodanchi Utsunomiya-sh, Tochigi 31, 3213231, JP)
栃木住友電工株式会社 (〒31 栃木県宇都宮市清原工業団地１８番４ Tochigi, 3213231, JP)
SASABE, Hiroshi (18-4 Kiyohara-Kogyodanchi, Utsunomiya-sh, Tochigi 31, 3213231, JP)
住友電工スチ－ルワイヤ－株式会社 (〒16 兵庫県伊丹市昆陽北一丁目１番１号 Hyogo, 6640016, JP)
SUMITOMO ELECTRIC TOCHIGI CO. LTD. (18-4, Kiyohara-Kogyodanchi Utsunomiya-sh, Tochigi 31, 3213231, JP)
栃木住友電工株式会社 (〒31 栃木県宇都宮市清原工業団地１８番４ Tochigi, 3213231, JP)
SASABE, Hiroshi (18-4 Kiyohara-Kogyodanchi, Utsunomiya-sh, Tochigi 31, 3213231, JP)
International Classes:
B60C15/04; B60C9/00; C22C38/00; C22C38/18; C22C38/54; D07B1/06; (IPC1-7): B60C15/04; B60C9/00; C22C38/00; C22C38/18; C22C38/54; D07B1/06
Attorney, Agent or Firm:
KAMADA, Bunji et al. (18-12, Nipponbashi 1-chome Chuo-k, Osaka-shi Osaka 73, 5420073, JP)
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