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, 2004
Filed:
Oct. 20, 2000
Kiyoshi Ueyoko, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A pneumatic tire comprises a carcass ply turned up around a bead core in each bead portion to form a pair of turnup portions and a main portion therebetween, and a rubber bead apex disposed between each turnup portion and main portion. Each turnup portion extends radially outwardly beyond a radially outer end of the bead apex to have a part adjoining the main portion. The profile in a tire sidewall portion and bead portion comprises a first linear portion and a second linear portion, the first linear portion extending radially outwards from a point P in substantially parallel to the tire equatorial plane, and the second linear portion extending radially inwards from the point P while inclining axially inwards at an angle of from +15 to +60 degrees with respect to the tire equatorial plane. The radial distance of the radially outer end of the turnup portion from a point Q is in the range of less than 3 times a distance (gt) measured from the point P to the carcass ply main portion along a straight line drawn from the point P perpendicularly to the carcass ply main portion, wherein the point Q is defined as a point at which the straight line intersects the carcass ply main portion.