The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 2017
Filed:
Mar. 03, 2015
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Kei Kohara, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Abstract
Provided is a rigid core for tire formation that limits the rubber stuck between inner mold segments in an inner mold segment while minimizing the occurrence of unevenness in the radial direction between inner mold segments that is caused by thermal expansion. A core main bodyis divided into: a first inner mold segmentA in which both circumferential end surfacesAs are inclined radially inward in a direction in which the circumferential width increases; a second inner mold segmentB that is arranged in an alternating manner with the inner mold segmentA and in which both circumferential end surfacesBs are inclined radially inward in a direction in which the circumferential width decreases; and a butting memberthat is arranged between the first inner mold segmentA and the second inner mold segmentB. Young's modulus Ea of the butting memberis smaller than Young's modulus Eb of the first and second inner mold segmentsA andB.