| 摘要 |
<p>The device comprises a stator ( 14 ) and a rotor ( 9 ) rotated by a key ( 8 ). The latter comprises several bushings ( 10 c) which clasp the magnets ( 10 c) and attract or repel magnets ( 10 b<SUB>1</SUB> , 10 b<SUB>2</SUB>) having a complementary or identical polarity and which are disposed inside the bushings ( 10 b) such that they move inside the housings ( 17 ) of the rotor ( 9 ). In order to maintain the angular position thereof and to facilitate translatory guidance, the bushings ( 20 b) comprise a rotational locking element ( 22 ) which engages into a groove ( 23 ) of the corresponding housing ( 17 ). In order to increase the number of combinations, each bushing ( 10 b) of the rotor ( 9 ) or key ( 8 ) houses two magnets ( 10 <SUB>1</SUB> , 10 b<SUB>2</SUB>) having inverted polarity or a magnet provided with at least one bipolar extremity, which are adapted in such a way that they can occupy different angular positions about a longitudinal axis (BB') of the bushing ( 10 b , 10 c). Such a device, by virtue of the precision of the relative movements of the axis and the high number of possible combinations, makes it possible to increase the inviolability of a locking device designed to prevent access to an opening.</p> |
