发明名称 |
Device for forming pulley |
摘要 |
A pulley is made by fixing an edge of an opening of a plate by using a first upper mandrel ring installed at a lower end of a first supporting pin of a first forming device. A supporting block disposed around an upper end of a first spindle is rotated with the first spindle. An inner hub of the pulley is formed by inwardly pressing an upper surface of the plate against a first pressing roller to reduce the thickness of the plate while drawing the plate around a first mandrel ring. The plate is fixed to a second spindle of a second forming device, so the plate rotates with the second spindle. An outer hub is formed by pressing a convex bead toward the inner hub by using a fourth pressing roller and by drawing the outer hub.
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申请公布号 |
US2005138808(A1) |
申请公布日期 |
2005.06.30 |
申请号 |
US20050066280 |
申请日期 |
2005.02.28 |
申请人 |
HALLA CLIMATE CONTROL CORPORATION |
发明人 |
PARK DAE-KYU;EUM TAE-HYOUNG;HUR JAE-HYEON |
分类号 |
F16H55/36;B21D22/16;B21D53/26;B21H1/04;(IPC1-7):F16H7/10;B21K1/42 |
主分类号 |
F16H55/36 |
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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