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. 05, 2012
Filed:
May. 02, 2007
Shingo Sugihara, Yokohama, JP;
Shingo Sugihara, Yokohama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A coreless rubber crawler track has an endless rubber elastic body (), steel cords () embedded in the longitudinal direction of the elastic body, rubber protrusions () formed at a constant interval from the inner peripheral surface toward the longitudinal direction of the elastic body, and rubber lugs formed on the outer peripheral surface. Bias cords () are arranged on the outer peripheral side of the steel cords () so as to extend to the lateral right and left in the directions opposite from each other. Both bias cords () are overlapped on each other over a width of 10 mm or more directly under the rubber protrusions. With such an arrangement, torsional rigidity and lateral rigidity of the rubber crawler track are improved and, even when the rubber crawler track is passed over sprockets etc., bending rigidity is not high and a tooth skip phenomenon is suppressed.