PNEUMATIC TIRE - BRIDGESTONE CORP

Title:

PNEUMATIC TIRE

Document Type and Number:

WIPO Patent Application WO/2012/120826

Kind Code:

A1

Abstract:

The present invention effectively reduces rolling resistance while maintaining outstanding maneuvering stability and durability. Provided is a pneumatic tire (1) comprising: a carcass ply having a main section (11a) that extends between a bead core (9), and a bending section (11b) that bends from the main section (11a) around the bead core (9); and a bead filler (13), wherein a part of the bending section (11b) extending further outward in the radial direction than an outer edge (13a) of the bead filler (13) in the radial direction is extended to a position at least 5 mm from the outer edge (13a) of the bead filler in the radial direction while maintaining a distance of 1 mm or less from the main section (11a); a bending edge (11c) is positioned further inward in the width direction of the tire than the neutral axis of bending of a bead section (7) and a side wall section (5) and within 10% to 40% of the cross-sectional height (SH) of the tire from the innermost edge in the radial direction; the tire also comprises a side rubber (5a) that covers the bending edge (11c), is positioned outwardly in the width direction of the main section (11a) and the bending section (11b), and forms part of the outer surface of the tire.

Inventors:

ONO YASUAKI (JP)

Application Number:

PCT/JP2012/001324

Publication Date:

September 13, 2012

Filing Date:

February 27, 2012

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)
ONO YASUAKI (JP)

International Classes:

B60C15/00; B60C3/06; B60C5/00; B60C9/08; B60C11/03; B60C11/04

Foreign References:

JP2000177308A	2000-06-27
JP2004535327A	2004-11-25
JPH07223407A	1995-08-22
JP2010125891A	2010-06-10
JPH08175119A	1996-07-09
JP2009001228A	2009-01-08

Other References: