Title:
ELASTOMER-METAL CORD COMPOSITE BODY AND TIRE USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/080440
Kind Code:
A1
Abstract:
The present invention provides: an elastomer-metal cord composite body which is capable of improving various properties of a tire such as steering stability and separation resistance of belt layers; and a tire which uses this elastomer-metal cord composite body. One embodiment of the present invention is an elastomer-metal cord composite body 10 which is obtained by covering, with an elastomer 3, a metal cord 2 that is composed of a bundle of a plurality of metal filaments that are arranged in a row without being twisted. At least one pair of adjacent metal filaments that are different from each other in at least one of patterning amount and patterning pitch is present in the metal cord; and if D is the wire diameter of the metal filaments, A is the cord width that is the maximum value of the distance from the surface of a metal filament at one end of the metal cord to the surface of a metal filament at the other end of the metal cord as measured in a direction that is perpendicular to the extending direction of the metal cord, and N is the number of the metal filaments that constitute the metal cord, D, A and N satisfy the relational expression 0.40 ≤ ((D/2)2 × π × N)/(D × A) ≤ 0.75.
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Inventors:
UEMURA KAZUKI (JP)
Application Number:
PCT/JP2019/040761
Publication Date:
April 23, 2020
Filing Date:
October 16, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C9/20; B60C9/00; B60C9/18; D07B1/06
Domestic Patent References:
| WO2018190308A1 | 2018-10-18 |
Foreign References:
| JPH08300905A | 1996-11-19 | |||
| JPH1121776A | 1999-01-26 | |||
| JPH07145578A | 1995-06-06 | |||
| JPH07157986A | 1995-06-20 | |||
| JP2018176960A | 2018-11-15 | |||
| JP2002339276A | 2002-11-27 | |||
| JPH06235179A | 1994-08-23 | |||
| EP1900549A1 | 2008-03-19 | |||
| US20100154956A1 | 2010-06-24 |
Attorney, Agent or Firm:
HONDA Ichiro (JP)
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