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Patent Searching and Data


Title:
MANUFACTURING METHOD OF RUBBER MEMBER FOR TIRE AND PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2014113779
Kind Code:
A
Abstract:

To provide a manufacturing method of a rubber member for a tire in which remained air upon molding is suppressed and which is applicable sufficiently even in a case of using a rubber composition of low adhesiveness like LRR-blending etc., and a pneumatic tire.

In a manufacturing method of a strip-like rubber member for a tire which is wound spirally over a drum after being conveyed on a conveyor belt, on the surface of a rubber member for a tire being conveyed on a conveyor belt, grooves are formed by using a grooving roller 1 in which plural convex strips 2 extending in the width direction are formed with a specified interval in the circular direction and a convex strip 3 of a specified width that encircles in the circular direction at the central part in the width direction is formed.


Inventors:
SAGAWA TAKAMICHI
Application Number:
JP2012270500A
Publication Date:
June 26, 2014
Filing Date:
December 11, 2012
Export Citation:
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Assignee:
SUMITOMO RUBBER IND
International Classes:
B29D30/30; B60C1/00
Domestic Patent References:
JP2004284165A2004-10-14
JP2010125699A2010-06-10
JP2008062639A2008-03-21
JP2012513315A2012-06-14
JPH0361033A1991-03-15
JP2009132160A2009-06-18
JP2007136894A2007-06-07
JP2011144267A2011-07-28
JP2002331595A2002-11-19
Foreign References:
US4934426A1990-06-19
US20070113942A12007-05-24
US20020166619A12002-11-14
Attorney, Agent or Firm:
Tetsuji Kamidai
Naomi Kamino