Tire noise reduction device
AssigneeThe Yokohama Rubber Co., Ltd.
InventorAtsushi Tanno
Life of this patent
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Abstract
A tire noise reduction device includes at least one noise absorbing member made of a porous material. The noise absorbing member is attached to the inner surface of the tire tread portion. The noise absorbing member includes multiple continuous grooves arranged side by side in a tire circumferential direction in the outer peripheral surface of the noise absorbing member. Each of the continuous grooves has an areal groove bottom and forms see-through regions in the width direction of the noise absorbing member. A groove edge-to-edge distance between each adjacent two of the continuous grooves in the tire circumferential direction is 2 mm to 40 mm. A largest see-through cross-sectional area of each continuous groove is 20 mm2 to 100 mm2.
Claims18
A tire noise reduction device attached to a tire comprising:
- at least one noise absorbing member which is made of a porous material and attached to an inner surface of a tire tread portion, wherein
- the noise absorbing member includes a plurality of continuous grooves arranged side by side in a tire circumferential direction in an outer peripheral surface of the noise absorbing member,
- each of the continuous grooves has an areal groove bottom and extends from one side surface to an opposite side surface of the noise absorbing member in a tire width direction so that one side can be seen through the continuous groove from the opposite side,
- a groove edge-to-edge distance between each adjacent two of the continuous grooves in the tire circumferential direction is 2 mm to 40 mm, and
- a largest see-through cross-sectional area of each of the continuous grooves is 20 mm2 to 100 mm2.
Dependencies are inferred from the claim text.