Invention Application
US20130327458A1 PNEUMATIC TIRE 有权
气动轮胎

  • Patent Title: PNEUMATIC TIRE
  • Patent Title (中): 气动轮胎
  • Application No.: US14000552
    Application Date: 2012-02-27
  • Publication No.: US20130327458A1
    Publication Date: 2013-12-12
  • Inventor: Yasuaki Ohno
  • Applicant: Yasuaki Ohno
  • Applicant Address: JP Chuo-ku, Tokyo
  • Assignee: BRIDGESTONE CORPORATION
  • Current Assignee: BRIDGESTONE CORPORATION
  • Current Assignee Address: JP Chuo-ku, Tokyo
  • Priority: JP2011-048133 20110304
  • International Application: PCT/JP2012/001324 WO 20120227
  • Main IPC: B60C11/00
  • IPC: B60C11/00
PNEUMATIC TIRE
Abstract:
The present invention provides a pneumatic tire 1, comprising: a carcass ply including a main body portion 11a extending across respective bead cores 9 and turn-up portions 11b each turned up around the bead cores 9 from the main body portion 11a; a bead filler 13; and a side rubber 5a, wherein: a tip portion on the outer side in the tire radial direction of the outer end 13a of the bead filler 13, of each of the turned-up portions 11b, extends to a position of at least 5 mm distance from the outer end 13a of the bead filler with maintaining distance of 1 mm or less between the main body portion 11a and itself; a turn-up end 11c is disposed on the inner side in the tire widthwise direction than a neutral axis of bending of a bead portion 7 and a corresponding sidewall portion 5 and at 10%-40% height of a tire cross sectional height SH of the tire; and the side rubber 5a, disposed on the outer side in the tire widthwise direction of the main body portion 11a and each turn-up portion 11b, covers the turn-up end 11c and constitutes a part of an outer surface of the tire.
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