| 摘要 |
1. Rotor for an alternator of automobile vehicles, of the kind which comprises two poles wheels (2, 3) equipped with claws, positioned one opposite the other and each comprising a profiled core part around which is arranged, between the two pole wheels (2, 3) equipped with claws, an induction coil (4), the whole being secured longitudinally and in rotation on a grooved part of a rotary shaft (1), said rotor being characterised in that each profiled core part has a ring (2c, 3c) situated on its free surface (2b, 3b) opposite to the pole wheel with which it is integral, coaxially and in the extension of the bore (2d, 3d) of the pole wheel (2, 3) and of such dimensions that under the action of a particular axial thrust, the two rings (2c, 3c) are deformed radially on coming into contact, so as to form a bead or roll able to be anchored in a single groove (9) provide in the rotary shaft (1) normal to the free surfaces of the core parts in such a manner as to assure longitudinal retention of the assembly (2, 3 and 4) on the rotary shaft (1). |
