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:
Jun. 02, 2020
Filed:
Mar. 18, 2015
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Fukuyama Rubber Ind. Co., Ltd., Fukuyama-shi, Hiroshima, JP;
Koji Iwasaki, Tokyo, JP;
Itaru Ishikawa, Tokyo, JP;
Ryosuke Imada, Tokyo, JP;
Takehiko Kiso, Fukuyama, JP;
Hirotaka Ozaki, Fukuyama, JP;
Tatsuya Noritoh, Fukuyama, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD, Tokyo, JP;
FUKUYAMA RUBBER IND. CO., LTD., Hiroshima, JP;
Abstract
A running device includes: a rubber crawler of an endless shape; a guide protrusion disposed in center, with respect to a width direction, of an inner circumferential surface of the rubber crawler; a driving protrusion disposed on each of opposite sides, with respect to the width direction, of the inner circumferential surface of the rubber crawler; and a track roller disposed over the guide protrusion, and configured to roll on the inner circumferential surface of the rubber crawler and to be in surface-contact with a side surface of the guide protrusion and a side surface of the driving protrusion. The track roller has side surfaces disposed on end portions with respect to the width direction, surface-contactable with the side surface of the guide protrusion and the side surface of the driving protrusion, respectively. The side surfaces of the track roller are disposed facing the side surface of the guide protrusion and the side surface of the driving protrusion, respectively, so as to be in surface-contact with the side surface of the guide protrusion and the side surface of the driving protrusion in response to sway of the track roller in the width direction of the rubber crawler.