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. 29, 2026
Filed:
Jun. 03, 2024
Applicant:
Daifuku Co., Ltd., Osaka, JP;
Inventor:
Tomohiko Kawashima, Shiga, JP;
Assignee:
DAIFUKU CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61D 3/04 (2006.01);
U.S. Cl.
CPC ...
B61D 3/04 (2013.01);
Abstract
It is sensed that a first guide roller of a first guide roller pair has been worn and/or that a second guide roller of a second guide roller pair has been worn. In an article transport device, a first sensor and a second sensor are attached to a frame, a distance between the first sensor and a first guide roller pair is shorter than a distance between the first sensor and a first wheel, and a distance between the second sensor and a second guide roller pair is shorter than a distance between the second sensor and a second wheel.