发明授权
US4697445A Poly-V pulley formed of sheet metal and method and apparatus for making
same
失效
由钣金制成的聚-V滑轮及其制造方法和装置
- 专利标题： Poly-V pulley formed of sheet metal and method and apparatus for making same
- 专利标题（中）： 由钣金制成的聚-V滑轮及其制造方法和装置
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申请号： US837534申请日： 1986-03-07
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公开(公告)号： US4697445A公开(公告)日： 1987-10-06
- 发明人: Haruma Tanaka , Yasuo Ohashi
- 申请人： Haruma Tanaka , Yasuo Ohashi
- 申请人地址： JPX Tokyo
- 专利权人： Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人： Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX59-42000 19840307
- 主分类号： B21D51/26
- IPC分类号： B21D51/26 ; B21D53/26 ; B21H1/04 ; B21H5/02 ; F16H55/44 ; F16H55/49
摘要：
A poly-V pulley formed from a cup-shaped sheet metal blank by axially compressing the cylindrical portion while confined in dies to form a thickened cylindrical portion, with radially pressurized dies to prevent buckling or corrugating, and roll forming the thickened portion into the external poly-V grooves and the opposite internal surface with axially extending grooves of a convex and concave shape for maintaining the accuracy of shape and size of the poly-V grooves.
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