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.

Date of Patent:
Jun. 07, 2022

Filed:

Apr. 07, 2020
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Shou Ishiyama, Toyota, JP;

Hiromu Takai, Nisshin, JP;

Seiji Ishizu, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 5/04 (2006.01); B21B 37/52 (2006.01); B21B 37/68 (2006.01); G01L 1/00 (2006.01); G01L 1/26 (2006.01); G01L 5/00 (2006.01); G01L 25/00 (2006.01); G01N 3/62 (2006.01);
U.S. Cl.
CPC ...
B21B 37/52 (2013.01); B21B 37/68 (2013.01); G01L 1/005 (2013.01); G01L 1/26 (2013.01); G01L 5/0066 (2013.01); G01L 25/00 (2013.01); G01N 3/62 (2013.01); B21B 2273/16 (2013.01); B65H 2557/61 (2013.01);
Abstract

A calibration determination device includes: a free roll that conveys the bonding member; a load detection device that detects a load applied to a bearing of the free roll; a tension adjustment device that winds the bonding member to increase a tension applied to the bonding member and unwinds the bonding member to reduce the tension applied to the bonding member so as to adjust the tension applied to the bonding member; and a calibration determination unit that determines whether calibration of the load detection device is necessary. The tension adjustment device unwinds the bonding member to cause the bonding member not to be subjected to the tension, and the calibration determination unit determines whether the calibration of the load detection device is necessary based on the load detected by the load detection device with the bonding member not being subjected to the tension.


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