Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2020/067473
Kind Code:
A1
Abstract:
This tire is provided with a pair of bead portions, at least one of which includes a bead wire, an adhesive layer, a first coating resin layer, and a second coating resin layer, in this order, wherein, in inside and outside directions in the axial direction of the tire, and in an inside direction in the radial direction of the tire, in positions in which the distance from the surface of the bead wire to the outside surface of the second coating resin layer is smallest, a thickness a and a water permeability A of the second coating resin layer, a thickness b and a water permeability B of the first coating resin layer, and a thickness c and a water permeability C of the adhesive layer satisfy the following conditions.
(a1) 10 mm ≤ a ≤ 80 mm
(b1) 0.05 mm ≤ b ≤ 0.5 mm
(c1) 0.005 mm ≤ c ≤ 0.1 mm
(A1) A ≤ 300 g·mm/(m²·day)
(B1) B ≤ 300 g·mm/(m²·day)
(C1) C ≤ 80 g·mm/(m²·day)
Inventors:
NAKAKITA YUKINORI (JP)
FUDEMOTO HIROYUKI (JP)
FUDEMOTO HIROYUKI (JP)
Application Number:
PCT/JP2019/038259
Publication Date:
April 02, 2020
Filing Date:
September 27, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C15/04
Foreign References:
| JP2018176872A | 2018-11-15 | |||
| JP2017109612A | 2017-06-22 | |||
| JP2016097944A | 2016-05-30 | |||
| JP2016097945A | 2016-05-30 | |||
| JP2011235835A | 2011-11-24 | |||
| JP2011207157A | 2011-10-20 | |||
| JPH03148308A | 1991-06-25 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
Download PDF: