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:
Mar. 31, 2015
Filed:
Aug. 06, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Kazuhiro Watanabe, Tokyo, JP;
Naofumi Sekine, Kawasaki, JP;
Yasuhiro Morishita, Tokyo, JP;
Yoshiki Kuno, Tokyo, JP;
Takeshi Nakata, Kawasaki, JP;
Wataru Kaku, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A movable carriage having front wheels and rear wheels includes, a detection unit detecting a direction caused by the operator pushing or pulling a grip unit, a rear-wheel steering angle changing unit changing a steering angle to cause a phase of the rear wheel to be the same as or opposite to the phase of the front wheel according to whether an angle between the detected direction and a center axis of the movable carriage is a predetermined angle or smaller, and a front-wheel steering angle changing unit changing a steering angle to cause a phase of the front wheel to be the same as or opposite to the detected direction according to whether the detected direction is a direction in which the movable carriage is pushed or pulled, when the angle between the detected direction and the center axis of the carriage exceeds the predetermined angle.