| 摘要 |
<p>PURPOSE:To simplify operation by automatically conducting the forward rotation and reverse rotation of a motor only for a fixed time every time a power closing switch is worked instantaneously. CONSTITUTION:When a switch 5 is turned ON, an oscillation signal (b) is outputted from an oscillation circuit 9, and output signals (c), (d) from a holding circuit 10 are brought alternately to a high level by the oscillation signal (b). When an output from a power amplifier 11 reaches H, currents in the direction of the arrow A flow through a motor 17, and the motor 17 begins to be forward rotated. A current sensing circuit 4 is turned ON by the revolution of the motor 17, the oscillation of the oscillation circuit 9 is stopped, and the holding circuit 10 is held under the state. A switch 15 is turned OFF immediately before a mirror housing is brought to a completely folded state, and feed to the motor 17 is interrupted. A switch 13 is brought to an ON state under the state in which the mirror housing is folded at a final position. When the switch 5 is turned ON, the motor 17 is reversely rotated.</p> |
