Pneumatic tire with noise damper
AssigneeSumitomo Rubber Industries, Ltd.
InventorsNaoki YUKAWA, Toshiaki SUZUKI, Takuya SATO
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Abstract
A pneumatic tire is provided with a noise damper made of a sponge material attached to a radially inner surface of the tread portion. The noise damper has protruding portions protruding from a radially inner surface of a band-shaped base portion. The protruding portions extend from one edge to the other edge of the base portion in the widthwise direction, and arranged at intervals in the tire circumferential direction. In a cross section of the tire parallel with the tire equatorial plane, the radially inner surface of each of the protruding portions includes a flat portion, and the radially inner surface of the base portion includes an arc portion parallel with the inner surface of the tread portion.
Claims17
A pneumatic tire with noise damper comprising:
- a pneumatic tire and
- a noise damper made of a sponge material and attached onto an inner surface of a tread portion of the pneumatic tire so as to extend in the tire circumferential direction, wherein
- the noise damper comprises a band-shaped base portion having a radially outer surface adhered to the inner surface of the tread portion, and a plurality of protruding portions protruding from the radially inner surface of the base portion,
- the protruding portions form ribs extending continuously from one edge to the other edge of the base portion in the widthwise direction, and arranged at intervals in the tire circumferential direction,
- in a cross section of the tire parallel with the tire equatorial plane,
- the radially inner surface of the base portion includes arc surface portions concentric with the inner surface of the tread portion, and
- the radially inner surface of each of the protruding portions includes a flat surface portion facing the tire axis (rotation axis).
Dependencies are inferred from the claim text.