| 摘要 |
<p>The invention relates to data carriers used with control devices, in particular, identification devices used to determine the right of access to various objects. The technical result is more effective control of access, while at the same time the invention has universal applicability. On the shaft (1) are arranged base units (2, 3) and rotating elements (4) with code markers (5) representing part of a complete code combination; the end faces of the elements (4) and, facing the latter, the faces of the base units (2, 3) are provided with mutual fixation elements in the form of projections and recesses (6). At the end of the shaft (1) which is in contact with the base unit (3), a spring (7) is provided and compresses the entire set of elements (4). The code markers (5) can take the form of, for example, perforations, notches or projections.</p> |
