| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulley that is excellent in heat dissipation property, rigid and lightweight, and hardly causes the generation of wind noise. SOLUTION: The pulley 2 is constituted of a light metal boss 21, a rim 22 and a plurality of spokes 23. Side faces 25 of the spokes 23 are formed so as to be parallel with the axial direction. Front faces 27 are formed so that all of the front faces 27 are positioned on the same rotational plane, and rear faces 28 are formed so that all of the rear faces 28 are positioned on the same rotational plane. COPYRIGHT: (C)2008,JPO&INPIT
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