| 摘要 |
The invention relates to a fixing device consisting of a component (2) and a screw element (1) which comprises a force application (10) for a rotating tool. The component (2) and the screw element (1) co-operate with each other in a fixed state. A contact surface (11) of the screw element (1) is embodied as a convex outer surface (12) on the side thereof facing the component, and a contact surface (11) of the component (2) is embodied as a concave inner surface (16). The outer surface (12) and the inner surface (16) are arranged coaxially in relation to a common longitudinal axis (X-X) extending through the component (2) and the screw element (1). The contact surfaces (11) are defined in the axial section of the fixing device by curved sections which arc bent in such a way that the centre(s) of curvature (A; A1, A2) of the convex outer surface (12) is/are set a perpendicularly to the longitudinal axis (X-X), from the centre(s) of curvature (B; B1, B2) of the concave inner surface (16), the contact surfaces (11) being thereby fixed together by the ends of their curved sections.
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