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. 22, 2021
Filed:
Dec. 04, 2018
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Hiraku Kouda, Hiratsuka, JP;
Jun Matsuda, Hiratsuka, JP;
Atsushi Tanno, Hiratsuka, JP;
Masaaki Nagayasu, Hiratsuka, JP;
Ryohei Takemori, Hiratsuka, JP;
Yuki Sasaya, Hiratsuka, JP;
Abstract
In a pneumatic tire including a side reinforcing layer, the maximum width Wof a bead core and the widths W, Wof the bead core at innermost and outermost sides in the radial direction, respectively, satisfy W>Wand W×W. Wis toward the inside of the center of the bead core in the radial direction. A carcass is folded and curved along the bead core, and a folded back portion of the carcass extends toward the sidewalls while contacting a body of the carcass. A rubber occupancy ratio in a region formed by the body and the folded back portion of the carcass is 0.1% to 15%. The cross-sectional area Sof a filler toward the outside of the carcass in the lateral direction, the hardness Hof the filler, the cross-sectional area Sof a side reinforcing layer and the hardness Hof the side reinforcing layer satisfy 0.15≤(S×H)/(S×H)≤0.60.