To restrain a bearing surface part from being deformed by resulting from existence of a flat part in a connection part.SOLUTION: A steel wheel for a vehicle comprises: a hub fitting part which is connected to a hub of a vehicle body by fastening with a fastening member, the hub fitting part including a bearing surface part which has a bolt hole penetratively formed, into which the fastening member is inserted, the bolt hole formed so that its circumference portion protrudes outward in a wheel axial direction; and a hat part which is positioned outside in the wheel radial direction relative to the hub fitting part and protrudes outward in the wheel axial direction. The steel wheel for the vehicle further comprises: an inclination part which is positioned outside in the wheel radial direction relative to the bearing surface part and positioned on the inner peripheral side of the hat part and is inclined so as to approach the wheel axis as it goes inward in the wheel axial direction; and a connection part which continuously connects the front face of the inclination part and the front face of the bearing surface part via a concave curve surface.SELECTED DRAWING: Figure 3
【課題】連結部における平坦部の存在に起因して座面部が変形することを抑制する。【解決手段】車両用スチールホイールは、締結部材で締結することにより車両本体のハブに連結されるハブ取付部であって、締結部材が挿入されるボルト孔が貫通形成されると共にボルト孔の周囲部分がホイール軸方向の外側に突出するように形成された座面部を有するハブ取付部と、ハブ取付部に対してホイール径方向の外側に位置し、ホイール軸方向の外側に隆起するハット部と、を備える。車両用スチールホイールは、さらに、座面部に対してホイール径方向の外側であって、かつ、ハット部の内周側に位置し、ホイール軸方向の内側に向かうに連れてホイール軸に近づくように傾斜する傾斜部と、傾斜部の表面と座面部の表面とを、凹状の曲面を介して連続的に連結する連結部と、を備える。【選択図】図3
STEEL WHEEL FOR VEHICLE
車両用スチールホイール
2021-04-15
Patent
Electronic Resource
Japanese
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |