| 摘要 |
A two-piece-wise built-up light-alloy wheel with a rather big diameter for automobiles and two-wheeled vehicles, being aimed to be made as lightweight and have an improved ornamental appearance, comprising: a rim ( 2 ) having outer and inner rim portions integrally formed with each other; a center disk ( 1 ) built-up with the integral rim ( 2 ); fastener bolts fastening the rim with the center disk; and a plurality of thick-wall portions ( 9 ) bulging from and integrally formed with the outer rim portion as bulging toward center of the wheel, as to form screw holes for the fastener bolts. Thickness of the rim ( 2 ) is substantially same except for the thick-wall portions, throughout from a bead seat ( 6 ) on the outer rim portion through a well part ( 8 ).
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