Title:
タイヤ
Document Type and Number:
Japanese Patent JP6815102
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a tire that can make both bead durability and rolling resistance compatible.SOLUTION: The tire comprises: a bead core; a first bead filler provided outside in a tire radial direction of the bead core and is tapered toward outside in the tire radial direction when viewed from a cross section in a tire width direction; a carcass wound around the bead core and the first bead filler; and a second bead filler arranged outside in the tire width direction of a folding part of the carcass extending outside in the tire width direction of the bead core and the first bead filler. Heights in the tire radial direction of the first bead filler are set to a range between 6 mm and 17 mm. The carcass is constituted of carcass plies formed of carcass cords whose diameters are in a range of 0.5 mm to 1.0 mm. The folding part has a region extending along the first bead filler, and an overlapping region extending along the carcass at a tire inner periphery side. A length in the tire radial direction of the overlapping region is set to 30% to 70% of the height in the tire radial direction of the folding part.SELECTED DRAWING: Figure 2
Inventors:
Tomoaki Nomoto
Yubayashi Kobayashi
Yubayashi Kobayashi
Application Number:
JP2016115233A
Publication Date:
January 20, 2021
Filing Date:
June 09, 2016
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C15/06; B60C15/00
Domestic Patent References:
| JP3087074B2 | ||||
| JP6285751B2 | ||||
| JP6141243B2 |
Attorney, Agent or Firm:
Miyazono Yasuo