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:
Feb. 18, 2020
Filed:
Jul. 23, 2015
Bridgestone Corporation, Tokyo, JP;
Takahiro Tsukamoto, Tokyo, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
An apparatus and method accurately measures an amount of overlap in joining together the end portions of a sheet-shaped member constituting a tire. The overlap amount of the sheet-shaped member front and rear ends is measured when the sheet-shaped member having been molded into a predetermined length with molding marks extending on the surface in width direction is wound around the periphery of a molding drum from the front end. In doing so, a detector detects a first molding mark formed on the sheet-shaped member on the rear end side and a second molding mark formed on the sheet-shaped member on the front end side by capturing images of an entire area including the overlap from above by an image capturing device. A calculator calculates the amount of overlap by measuring the distance between the first and second molding marks on the sheet-shaped member from the frames of captured images.