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:
Nov. 03, 2015
Filed:
Sep. 01, 2011
Hideaki Furuno, Tokyo, JP;
Yoshiharu Tomioka, Tokyo, JP;
Yutaka Yoshida, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An automatic guided vehicle and a method for drive control enable setting the vehicle alongside a conveyor with high accuracy in stopping at a task address. An automatic guided vehicle includes photoelectric sensors which detect the presence of an article by projecting light to a reflecting plate arranged on a conveyor and receiving signal light reflected from the reflecting plate and are arranged in one at each of the front and rear portions of the automatic guided vehicle, and a unit for detecting the distance between the vehicle and the conveyor. When both the photoelectric sensors arranged at the front and read portions of the side surface of the vehicle, a steering vehicle is steered toward the conveyor, and the automatic guided vehicle is driven toward the conveyor until the distance between the vehicle and the conveyor becomes within a predetermined distance.