To suppress toe and heel wear near a ground contact end in a shoulder block defined by a shoulder lateral groove inclined with respect to a tire width direction.SOLUTION: A pneumatic tire 1 comprises: a shoulder main groove 13; shoulder lateral grooves 23 extending from the shoulder main groove 13 beyond a ground contact end GL in a direction inclined with respect to a tire width direction TW; and shoulder blocks 33 defined by those grooves. The shoulder block 33 has plural width-directional edges 34 extending in the tire width direction TW in a top face 33a, the plural width-directional edges include an acute angle-side width directional edge 34a with an acute angle with respect to a tire circumferential direction TC, and the acute angle-side width directional edge is formed with a chamfer part 40. The chamfer part 40 occupies 50% or more of a region R defined by a width of 1/4 of a shoulder ground contact width W in the tire width direction TW, from the ground contact end GL toward inside in the tire width direction TW.SELECTED DRAWING: Figure 1

    【課題】タイヤ幅方向に対して傾斜しているショルダー横溝によって区画されるショルダーブロックにおいて、接地端近傍におけるトーヒール摩耗を抑制する。【解決手段】空気入りタイヤ1は、ショルダー主溝13と、ショルダー主溝13から接地端GLを超えてタイヤ幅方向TWに対して傾斜した方向に延びるショルダー横溝23と、これらによって区画されたショルダーブロック33とを有している。ショルダーブロック33は、頂面33aにおいてタイヤ幅方向TWに延びる複数の幅方向縁部34を有し、これらのうちタイヤ周方向TCとの間の角度が鋭角となる鋭角側幅方向縁部34aには、面取り部40が形成されている。面取り部40は、タイヤ幅方向TWにおいて、接地端GLからタイヤ幅方向TWの内側へ、ショルダー接地幅Wの1/4の幅で画定される領域Rに占める割合が50%以上である。【選択図】図1


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    Title :

    PNEUMATIC TIRE


    Additional title:

    空気入りタイヤ


    Contributors:

    Publication date :

    2020-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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