| 摘要 |
<p>The device has a blade pivot (3) with a lower end (31) and an upper end (32), which is connected to a control lever (2). Swivel bearings (7) are arranged at the ends (31, 32), respectively, where the bearings have an inner ring (71) and an outer ring (72) forming a rotular connection. The ring (71) and the pivot are blocked at one rotation with respect to another, where the pivot and the ring have complementary square shaped sections. An independent claim is also included for a stator with a case with a bore.</p> |
