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. 18, 2014
Filed:
Apr. 14, 2010
Nobuo Shimozono, Yokohama, JP;
Nobuo Shimozono, Yokohama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
The object of the present invention is to provide a rubber crawler having high traction force and excellent straight-ahead driving property and further improved durability by ensuring good soil-grasping property and soil-discharging property of the crawler body. The rubber crawlerhas a crawler bodyand a plurality of metal coresburied in the crawler body and lugsprovided on an outer periphery side with they being divided into left and right sides across the central portion, the lugs divided into left and right sides being arranged in zigzag alignment with shifting of phase in a circumferential direction of the crawler body, wherein a contact area of the each lugis divided into a central lug portionand an outer lug portion. During running of the rubber crawler, the central lug portionand the outer lug portionof each of the lugsconnect to ground, and therefore, a force supporting the metal coresare sufficiently ensured by the lugs to suppresses peeling of the crawler body from the metal cores or crack of the crawler body, which brings about enhancement of durability of the crawler body. Meanwhile, excellent soil-grasping property and soil-discharging property are maintained without destroying mud grasped by the grooveextending in the circumference direction, which brings about enhancement of straight-ahead driving property and suppresses occurrence of side slipping on a soft ground or a slope ground.