| 摘要 |
<p>The device has an electric motor with a field winding, permanent magnets (31`), and a speed reducer (4). A mounting support (2) forms a housing (22) in which the motor and the speed reducer are mounted. The speed reducer has a ring (46), a damping element to limit an angular movement due to a torsion movement between the speed reducer and support, and a centring element to facilitate the assembly of the speed reducer and support. The damping and centring elements are formed in a longitudinal shaped single elastic metal piece (7`) comprising an extension (72`) for holding the magnets.</p> |
