Bridgestone Corporation

Takeshi Watanabe

Yuichiro Ogawa

Kuninobu Kadota

Tetsuhito Tsukagoshi

The characteristic of the present invention is a pneumatic tire comprising a plurality of radial protrusionseach extending in a tire radial direction on a tire surfaceand having a shape protruding from the tire surface outward in a tire width direction, wherein the plurality of radial protrusionsare provided radially with a tire rotation axis S as a center, the plurality of radial protrusionseach have an outer end portionbeing an end portion located on an outer side in the tire radial direction, and the outer end portionis provided to the tire surface in a tire maximum width portion (a maximum width portion T) in the tire width direction.

Pneumatic tire

The aspect of the present invention is a pneumatic tire comprising a plurality of radial protrusionseach extending in a tire radial direction on a tire surfaceand having a shape protruding from the tire surface outward in a tire width direction, wherein the plurality of radial protrusionsare provided radially with a tire rotation axis as a center, the plurality of radial protrusionseach have a low protrusion portionand a high protrusion portion, and a height of the low protrusion portion measured in the tire width direction hs is lower than a maximum height of the high protrusion portion h measured in the tire width direction.

A pneumatic tire comprises a carcass comprised of at least one carcass ply containing a steel cord(s) arranged at a cord angle of 70-90&#xb0; with respect to an equatorial plane of the tire and toroidally extending between a pair of bead cores and turned up around the bead core inward or outward in a radial direction to form a turnup portion, wherein a wrap part wrapping on a peripheral face of the bead core therealong is formed in the turnup portion of the carcass ply.

Pneumatic tires

A pneumatic tire comprises a carcass comprised of at least one carcass ply containing a steel cord(s) arranged at a cord angle of 70&#x2013;90&#xb0; with respect to an equatorial plane of the tire and toroidally extending between a pair of bead cores and turned up around the bead core inward or outward in a radial direction to form a turnup portion, wherein a wrap part wrapping on a peripheral face of the bead core therealong is formed in the turnup portion of the carcass ply.

A pneumatic tire comprises a carcass comprised of at least one carcass ply containing a steel cord(s) arranged at a cord angle of 70-90&deg; with respect to an equatorial plane of the tire and toroidally extending between a pair of bead cores and turned up around the bead core inward or outward in a radial direction to form a turnup portion, wherein a wrap part wrapping on a peripheral face of the bead core therealong is formed in the turnup portion of the carcass ply.

Growing community of inventors

Kodaira, Japan

Takeshi Watanabe