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:
May. 23, 1995
Filed:
Nov. 19, 1993
Atao Kishi, Hiratsuka, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
A pneumatic radial tire for heavy loads having block type tread pattern defined by a plurality of grooves provided on a tread surface thereof and by a plurality of blocks segmented and formed by the plurality of grooves, characterized in that each of at least such ones of the plurality of grooves which traverse the plurality of blocks in a width direction of the tire, having a sectional shape on each side of the groove, taken in a direction crossing the groove, the sectional shape of the grooves, comprises: a slanted linear line positioned on a bottom side of the groove and expanding outwardly toward the tread surface; and a circular arc line positioned on a side of the tread surface, an inward end of which contacting the linear line, and an outward end of which contacting the tread surface.