An automobile wheel includes first bottom portions provided inward in a radial direction of a front side bead seat portion and a back side bead seat portion between the front side bead seat portion and back side bead seat portion and second bottom portions provided inward in the radial direction of the first bottom portions. The first bottom portions and second bottom portions are alternately provided in a circumferential direction. This configuration increases difference in area between area of a cross section in the radial direction of a tire-internal space in sections where the first bottom portions are provided and area of a cross section in the radial direction in sections where the second bottom portions are provided and thus allows improvement in an effect of reducing cavity resonant noise.
Automobile wheel
2015-09-22
Patent
Electronic Resource
English
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |