Title:
空気入りタイヤ用ランフラット支持体
Document Type and Number:
Japanese Patent JP4412325
Kind Code:
B2
Abstract:
Provided is a run-flat support body (1) for a pneumatic tire, in which an outer peripheral side of an annular shell (2) serves as a support surface for supporting an inner surface of the tire (T); an inner peripheral side of the annular shell (2) straddles in the form of a bifurcation; elastic rings (3) and (3) are attached respectively to two leg parts (2b) and (2b) of the annular shell (2); and the annular shell (2) is supported on a rim (Rm) of a wheel with the elastic rings (3) and (3). The elastic rings (3) and (3) are composed of a composite elastic material formed by compounding reinforcement fillers in an elastic material. Accordingly, compressive rigidity of the elastic rings in a radial direction of the tire is made larger than that of the unreinforced elastic rings in the tire radial direction, the unreinforced elastic rings being composed of a single elastic material in which the reinforcement fillers are not compounded. Moreover, bending rigidity of the elastic rings in an axial direction of the tire is made substantially equal to that of the unreinforced elastic rings in the tire axial direction, the unreinforced elastic rings being composed of a single elastic material in which the reinforcement fillers are not compounded.
Inventors:
Naito Mitsuru
Application Number:
JP2006532610A
Publication Date:
February 10, 2010
Filing Date:
August 26, 2005
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
B60C17/06
Domestic Patent References:
| JP2004082795A | ||||
| JP2001519279A | ||||
| JP2004058917A | ||||
| JP2003341309A |
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita
Takashi Noguchi
Kazuhiko Saishita