发明名称 |
METHOD OF MAKING POLY-V GROOVED PULLEY |
摘要 |
In a method of making a poly-V grooved pulley from a circular flat plate of sheet metal of a predetermined thickness, the central portion of the parent flat plate is pressed to form a cup-shaped blank integral with a circular flat peripheral flange of the same thickness as that of the parent flat plate, the cup-shaped blank having a predetermined thickness thinner than that of the parent flat plate. The cup-shaped blank is pressed to form a hub wall, and the circular flat peripheral flange is drawn to form a cylindrical pulley flange wall. At the final stage, the cylindrical pulley flange wall is formed in its exterior periphery with a plurality of V-shaped grooves for a poly-V belt.
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申请公布号 |
US5068964(A) |
申请公布日期 |
1991.12.03 |
申请号 |
US19900477127 |
申请日期 |
1990.02.07 |
申请人 |
AISIN SEIKI KABUSHIKI KAISHA |
发明人 |
YABUNO, RYOHEI;TAKEDA, SHIN |
分类号 |
B21D53/26;B21H1/04;B21K1/42;F16H55/44;F16H55/49 |
主分类号 |
B21D53/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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