| 摘要 |
A cursor (151), designated to slide in a case formed by two thicknesses lying alongside the cursor, is formed by cuts parallel to the direction of sliding and by weak links designed to be broken by action on the cursor (151) in the direction of f1 which causes its initial sliding; cuts parallel to the direction of sliding form elongate slots (153) running alongside the cursor (151) and each terminating in a stop (151X) formed by the cursor and in a stop (121x) formed by the material of the intermediate thickness (121) from which the cursor is formed; the two stops (121X; 151X) interact to limit the sliding of the cursor with respect to the case. |
