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:
Sep. 19, 2017
Filed:
Jan. 26, 2015
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Ryuhei Sanae, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-shi, Hyogo, JP;
Abstract
A pneumatic tire is provided in a tread portionwith shoulder main groovesandand a center main grooveand divided into shoulder land portionsandand crown land portionsand. The total width of the shoulder main groovesandand the center main grooveis 24% to 28% of the tread width TW. The crown land portionsandare not provided with a groove having a width of not less than 2 mm and extending across the entire width of the crown land portion, but provided with a plurality of crown sipeshaving a width of less than 2 mm. The crown sipesinclude first sipescomprising a lateral direction partextending parallel with the tire axial direction and an oblique partinclined with respect to the lateral direction part. The ratio ΣLy/ΣLs of the sum ΣLy of the lengths Ly of the lateral direction partsand the sum ΣLs of the lengths Ls of the crown sipesis not more than 0.15.