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发明授权
CN101253025B 用于内部型面螺钉的螺丝起子 有权 转让

用于内部型面螺钉的螺丝起子
摘要：
本发明涉及一种用于内部型面(10)的螺丝起子，该螺丝起子设有轴(12)和外部型面头部(18)，该外部型面头部形成为对应于内部型面螺钉的内部型面凹部(14)。轴带有外部型面头部的远端区域以拼合方式实现，一套筒(16)接纳轴，并可相对其移位。包括间隙的轴的至少一个部分设有倾斜接触件，套筒设有接触环，该接触环作用在倾斜接触件上。当所述套筒相对轴移位时，通过用外部型面头部卡紧内部型面凹部，将轴设有倾斜接触件的部分剪切并拉离另一部分。
摘要（英）：

The invention relates to a screw driver for an inner profile, which comprises a shaft and an outer profile head which is embodied in a manner which corresponds to the inner profile recess of the inner profile screw. The distal area of the shaft, which comprises an outer profile head, is embodied in a split manner and a bushing receives the shaft and can be displaced in relation therewith. At least one part of the shaft, which comprises a gap, is provided with an oblique contact member and the bushing is provided with a contact ring which acts upon the oblique contact member(s). When the bushing is displaced in relation to the shaft, the part of the shaft which comprises the oblique contact member, is cut and pulled away from the other part, by clamping the inner profile recess with the outer profile head.

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