| 摘要 |
<p>The blind slats tilt about their lengthwise axes, but can be moved only in a particular angular position. A separate electric motor is used for tilting and movement, the two motors being electrically interlocked so that control is effected by a single switch (S) with two stable positions. The driving motors (TM, WM) have one end of all windings connected to the A.C. mains. One terminal (T) of the driving motor (TM) is connected with the fixed contact of the switch (3, ETE), whose moving contact is connected to the fixed one of a switch (S). The moving contact of the latter is connected to the neutral mains wire. The other terminal (RT) of this motor is connected to the fixed contact (7) of the rest contact (ETA). The moving contact of the latter is connected to the fixed one (5) of switch (EWA), whose moving contact is in turn connected to the fixed one (2) of switch (S).</p> |
