| 摘要 |
The bows (12) for fixing the strap (10) to the case body (4) each have an arc-of-circle groove (13), of rectangular section, engaging on an annular thread (4a) of the case body. Assembly is furthermore ensured by tenons (15) each passing through the bows (12) and the case body and held, inside the latter, by keys formed by split washers (17). This mode of assembly ensures a rigid link between the bows (12) and the case body (4) which absorbs the bending and torsional loads caused by the forces exerted by the strap (10) on the horns (12) by reason of the fact that these forces are not located in the plane of the case. <IMAGE>
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