发明名称 |
Apparatus and method for forming a retaining ring on a wheel for a ratchet wrench |
摘要 |
A method of forming a ratchet wheel adapted to be disposed in at least one end of the ratchet wrench for engaging an element to be turned, includes the step of providing a wheel blank having a generally hollow, cylindrical body formed with a radially projecting rib located midway between an upper hub portion and a lower hub portion, the upper hub portion being integrally formed with an upstanding lip having a diameter equal to or slightly smaller than the diameter of the upper hub portion. The method also includes the step of bending the lip inwardly to form a retention ring adapted to engage the upper surface of the element to be turned and prevent the element from slipping through the wheel of the ratchet wrench.
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申请公布号 |
US2002029605(A1) |
申请公布日期 |
2002.03.14 |
申请号 |
US20010945412 |
申请日期 |
2001.08.31 |
申请人 |
A&E MANUFACTURING COMPANY, |
发明人 |
GREUEL BILLY R.;HAASE EDWARD A. |
分类号 |
B21K5/16;B25B23/00;(IPC1-7):B21J7/16 |
主分类号 |
B21K5/16 |
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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