| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric blind capable of accurately controlling a slat rotation angle. SOLUTION: An electric blind opens and closes plural slats of a blind by starting driving means. The electric blind has control means in which when the slats are rotated by a prescribed angle, the driving means is started with a first electric power, and when the slats are rotated by a smaller angle than the prescribed angle, the driving means is started with a second electric power lower than the first electric power. Thus, an electric motor is driven with the minimum power only for a detectable time (time TX) of a rotation detection part after an output of the rotation detection part switches from on to off for the first time since the drive start T11. Subsequently energization is performed with a controlling power at a constant speed. COPYRIGHT: (C)2012,JPO&INPIT |
