Title:
重荷重用空気入りラジアル・タイヤ
Document Type and Number:
Japanese Patent JP4171542
Kind Code:
B2
Abstract:
A pneumatic radial tire comprises a pair of bead portions each containing a bead core (1), a radial carcass, a belt comprised of at least one belt layer, and a tread, in which (I) a tapering angle θC of an inner side of the bead core (1) in the radial direction is within +/- 2 DEG of a tapering angle θR of a bead seat part in an approved rim, and (II) a compression ratio Ca at a widthwise inner end (a) of the inner side of the bead core is within a range of 102-115% of a compression ratio Cb at a widthwise outer end (b) thereof.
Inventors:
Yoichi Honbo
Shuji Ando
Shuji Ando
Application Number:
JP23702898A
Publication Date:
October 22, 2008
Filing Date:
August 24, 1998
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C15/00; B60C15/06; B60C15/02; B60C15/024; B60C15/04
Domestic Patent References:
| JP9066711A | ||||
| JP2124303A | ||||
| JP3010915A | ||||
| JP6206408A | ||||
| JP7164835A | ||||
| JP10166819A | ||||
| JP11208224A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda