| 摘要 |
<p>The bezel (4) is mounted on the middle part (1) with the aid of an inclined multifacet wire spring. Between the middle part (1) and the bezel (4) is a flat spring with inclined tongues which form ratchet mechanisms engaging in a toothing of a ring (8). This ring is freely arranged between the middle part (1) and the bezel (4) and its angular position relative to the bezel is determined by pins (9) engaging in holes (10) in the bezel (4). The indexing system of the bezel (4), composed of the toothed ring (8) and of the flat spring (11) with its ratchet mechanisms (12), is thus arranged freely between the bezel and the middle part (1), and all the components are held solely by the elastic force of the springs (6, 11). The elements of the system and its mounting are particularly simple and inexpensive.
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