KERF OF WINTER TIRE
To provide a kerf of a tire capable of easily discharging snow while additionally further improving braking performance and drainage performance on a wet road.SOLUTION: A pipe-shaped flow passage portion 120 having a width that is greater than or equal to a width of a kerf inlet portion 110 is forme...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a kerf of a tire capable of easily discharging snow while additionally further improving braking performance and drainage performance on a wet road.SOLUTION: A pipe-shaped flow passage portion 120 having a width that is greater than or equal to a width of a kerf inlet portion 110 is formed in a lower portion of a tread kerf 100 formed in a block of a tread and a shoulder of a tire. The kerf inlet portion 110 and the flow passage portion 120 are connected with a connection channel 130. The kerf inlet portion 110 is formed in the shape of a sawtooth-type zigzag wave in the block in a circumferential direction of the tire. The sawtooth-type zigzag wave has an amplitude that gradually decreases in a depth direction of the block, and the connection channel 130 has a width that gradually decreases from the kerf inlet portion 110 to the flow passage portion 120.SELECTED DRAWING: Figure 1
【課題】濡れた路面で制動性能及び排水性をより一層向上させる一方で、雪の排出を容易にするタイヤのカーフを提供する。【解決手段】タイヤのトレッド及びショルダーのブロックに形成されたトレッドカーフ１００の下部には、カーフ入口部１１０の幅より広い又は等しい管形の流路管部１２０が形成され、カーフ入口部１１０と流路管部１２０とが連結チャンネル１３０で連結され、カーフ入口部１１０はブロックのタイヤ円周方向に沿って鋸歯状のジグザグウェーブをなしつつ形成され、鋸歯状のジグザグウェーブはブロックの深さ方向に沿って振幅が小さくなるように形成され、連結チャンネル１３０の幅はカーフ入口部１１０から流路管部１２０へ行くほど幅が小さくなるように形成される。【選択図】図１ |
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