发明名称 |
Estructura de acoplamiento entre cabeza de tornillo y herramienta de apriete |
摘要 |
Coupling structure between screw head and tightening tool, constituted by a recess (3) with a curved concave surface on the free base of the head (1) of the screw (2) and by a protuberance (6) with a curved convex surface finishing the end of the tool (5). The recess has axial projections (4) internally and the protuberance (6) has meridional grooves (7). |
申请公布号 |
ES2577509(T3) |
申请公布日期 |
2016.07.15 |
申请号 |
ES20100720799T |
申请日期 |
2010.04.14 |
申请人 |
Universal Ball Head, S.L. |
发明人 |
FARRE BERGA, Ramón |
分类号 |
B25B15/00;F16B23/00 |
主分类号 |
B25B15/00 |
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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