发明名称 |
СПИРАЛЬНЫЙ ПРИВОДНОЙ КРЕПЕЖНЫЙ ЭЛЕМЕНТ С ФРИКЦИОННЫМИ ЗАЦЕПЛЯЕМЫМИ ПОВЕРХНОСТЯМИ |
摘要 |
Interference surfaces are constructed on inner transition surfaces between wings of a fastener having a spiral recess. A portion of the transition surface is tapered to provide the interference. A standard driver for a spiral recess will engage the interference surface to create a "stick fit" engagement. The punch is formed using a wire EDM operation to construct tapered surfaces within the die cavity of a hob. The hob is machined down to obtain the desired depth, which is measured up from a gage spot indicative of the sticking point. |
申请公布号 |
RU2006140243(A) |
申请公布日期 |
2008.05.20 |
申请号 |
RU20060140243 |
申请日期 |
2005.04.12 |
申请人 |
ФИЛЛИПС СКРЮ КОМПАНИ (US) |
发明人 |
ДИЛЛИНГ Гари (US) |
分类号 |
F16B23/00;B21K5/20;B23P15/00 |
主分类号 |
F16B23/00 |
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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