| 摘要 |
<p>The electrical commutator comprises two rings (30,40) rotating about a common axis (O-O) and located either side a fixed ring (200). A re-initialisation finger (300) rotates with one of the rings (40) and further fingers ensure axial displacement of this finger, as a function of its rotation, to selectively engage the second ring. A rod (34) moulded to the second ring passes through the fixed ring to selectively engage the re-initialisation finger. The re-initialisation finger has a foot (310) placed in a complementary housing in the first ring (40) and a widened head (350) which engages the fingers causing axial displacement of the finger with the rod. The re-initialisation finger has a blind bore taking a spring (314).</p> |
