Title:
BEAD CORE FOR PNEUMATIC TIRE AND PNEUMATIC TIRE USING THE BEAD CORE
Document Type and Number:
WIPO Patent Application WO/2011/030765
Kind Code:
A1
Abstract:
A bead core (10) for a pneumatic tire is composed of an annular bead wire bundle (13) which is formed by winding a single bead wire (12) by a plurality of turns. A step reduction member (20) is provided at a stepped portion (17) caused by a winding beginning end (15) of the bead wire (12). Also, a pneumatic tire (1) is provided with a pair of bead portions (4) in which the bead cores (10) for a pneumatic tire having the step reduction members (20) are arranged and a carcass (5) which extends between the pair of bead portions (4, 4) and is folded back around the respective bead cores (10) at both ends.
Inventors:
YAGITA MASANORI (JP)
KAWAGUCHI MITSUHISA (JP)
NOMURA SHIGEAKI (JP)
MIDORIKAWA MIYOSHI (JP)
KAWAGUCHI MITSUHISA (JP)
NOMURA SHIGEAKI (JP)
MIDORIKAWA MIYOSHI (JP)
Application Number:
PCT/JP2010/065345
Publication Date:
March 17, 2011
Filing Date:
September 07, 2010
Export Citation:
Assignee:
FUJI SEIKO CO LTD (JP)
YAGITA MASANORI (JP)
KAWAGUCHI MITSUHISA (JP)
NOMURA SHIGEAKI (JP)
MIDORIKAWA MIYOSHI (JP)
YAGITA MASANORI (JP)
KAWAGUCHI MITSUHISA (JP)
NOMURA SHIGEAKI (JP)
MIDORIKAWA MIYOSHI (JP)
International Classes:
B60C15/04; B29D30/48; B60C9/00
Foreign References:
| JP2004345537A | 2004-12-09 | |||
| JP2000247118A | 2000-09-12 | |||
| JP2005254885A | 2005-09-22 | |||
| JP2003118323A | 2003-04-23 | |||
| JPH06328915A | 1994-11-29 | |||
| JPS6012320A | 1985-01-22 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
Download PDF: