Title:
重荷重用タイヤ
Document Type and Number:
Japanese Patent JP6747055
Kind Code:
B2
Abstract:
In oder to provide a heavy-duty tire that allows wear resistance of a tread part to be improved while preventing an increase in rolling resistance, a heavy-duty tire (1) includes a tread part (2); in a tire cross section including a tire rotation axis in a 5% internal pressure state, a profile (20) of the tread part (2) includes a crown profile (21) and a pair of shoulder profiles (22) that respectively extend from both sides of the crown profile (21) to tread edges; the crown profile (21) and the shoulder profiles (22) each have an arc shape that is convex toward a tire radial direction outer side, the ratio (Rc/Rs) of a curvature radius (Rc) of the crown profile (21) to a curvature radius (Rs) of each of the shoulder profiles is 7.0; i.e. the ratio (Rs/Rc) is 0.143 or less; the tire axial direction distance (L1) from the tire equator (C) to the connecting point (23) is 0.70 or more times the tread half width (TWh).
Inventors:
Shigeru Kanaya
Aku Ikuo
Kushimoto Shuji
Aku Ikuo
Kushimoto Shuji
Application Number:
JP2016100481A
Publication Date:
August 26, 2020
Filing Date:
May 19, 2016
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C11/01; B60C11/00
Domestic Patent References:
| JP2015048047A | ||||
| JP2009006983A | ||||
| JP2012035681A | ||||
| JP10250316A |
Attorney, Agent or Firm:
Sumitomo Shintaro
Ura Shigego
Jun Naemura
Yukinobu Ishihara
Ura Shigego
Jun Naemura
Yukinobu Ishihara