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:
Sep. 15, 2020
Filed:
Feb. 16, 2017
The Yokohama Rubber Co., Ltd., Minato-ku, Tokyo, JP;
Kensuke Matsumura, Shinshiro, JP;
Yuichi Sugiyama, Shinshiro, JP;
Abstract
Provided is an inner circumferential length measuring device for a circular member, the device having a support with two projection portions projecting from a surface of the support and configured to engage an inner circumferential surface of the circular member. A two-dimensional sensor is disposed facing the inner circumferential surface of the circular member at a predetermined measurement position and is rotatable about a rotation shaft at a predetermined position inward of the circular member, the two-dimensional sensor being configured to measure a separation distance from the two-dimensional sensor to the inner circumferential surface around an entire circumference of the circular member. A calculation unit calculates an inner circumferential length of the circular member using the separation distance and a distance from the rotation shaft to the two-dimensional sensor.