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Patent Searching and Data


Title:
TIRE DURABILITY TEST METHOD
Document Type and Number:
Japanese Patent JP2017125823
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of accurately testing durability of a tire against interlayer separation of a belt.SOLUTION: A test method of the present invention relates to a method of testing durability of a tire 4. The test method involves use of a running tester 2 configured to allow a tire 4 to roll on a running surface 8 thereof. The test method includes steps of; bringing the tire 4 into contact with the running surface 8; applying a load to the tire 4; and making the tire 4 roll on the running surface 8. The running surface 8 comprises a reference running surface 12 and a slat 10 protruding from the reference running surface 12. When the tire 4 comes in contact with the slat 10, a specific portion of a belt gets bent in a radially inward direction in a cross-section perpendicular to a circumferential direction. A radially outer surface of the specific portion has a curvature radius R1 of 50-120 mm, inclusive.SELECTED DRAWING: Figure 4

Inventors:
TAGO DAISUKE
KOBAYASHI JUKICHI
FUKUMOTO TORU
YOSHIDA KOJI
NIISATO KAZUYUKI
Application Number:
JP2016006489A
Publication Date:
July 20, 2017
Filing Date:
January 15, 2016
Export Citation:
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Assignee:
SUMITOMO RUBBER IND
International Classes:
G01M17/02; B60C9/20; B60C19/00
Attorney, Agent or Firm:
Kengo Oka
Sumitomo Norio
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
Yukari Imamura
Hiroomi Nakao