| 摘要 |
The invention relates to a device for rotational locking of a rotatable fastening element (14) in a construction element (7), comprising a surface formed in said construction element (7) for positioning said fastening element (14), thus defining an axis of rotation for the fastening element (14) through the surface (9) and means (11) for said locking which comprise an edge which faces the axis of rotation for interaction with the fastening element (14). The invention is characterized in that said means (11) consist of at least one element (11) which protrudes from the construction element (7) and which is shaped so that said edge (13) is positioned at a predetermined distance to the axis of rotation, essentially independently of the position of the axis of rotation along said surface (9). By means of the invention, an improved device is obtained for locking in the direction of rotation a fastening element, e.g. a screw or a nut, where in particular the positioning when drilling a hole (12) in the construction element (7) can be carried out with a low degree of accuracy.
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