| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight wheel for a vehicle meeting the requirement of the mechanical strength, in which even the characteristic values of the wheel and also the stiffness value are taken into consideration. SOLUTION: The wheel for the vehicle has a hub fixing part formed from aluminum alloy through single piece casting, ten spokes in Y-shape, and a rim part, wherein the construction meets W≤0.47D, where D is the wheel nominal diameter in inches, and W is the weight. One concrete shape is described as follows; ten spokes are provided having Y-shape, and on the profile projected from the obverse side in the axial direction, the ratio of the length in radial direction of the portion L1 from the hub fixing part of the spokes in Y-shape to branching to the length in the radial direction of the portion L2 from branching to the rim part is L1:L2=4:6 to 6:4, and the maximum width of the portion L1 is 23-29 mm, while that of L2 is 10-14 mm. COPYRIGHT: (C)2006,JPO&NCIPI
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