| 摘要 |
An actuating device for actuating a shutter is provided with a vertical guiding plate formed on both sides of the shutter to extend in a lengthwise direction thereof, a united guiding groove divided into a triangular guiding groove having a widened width for guiding the vertical guiding plate and an inclined guiding groove having a narrow width and formed in an inclined form at a predetermined angle, a vertical movement member having a movement member protuberance provided with a hinge at which one end of an actuating rod is connected, the other end of the actuating rod being connected to a shutter protuberance formed on a rear surface of the shutter, and a slip prevention protuberance having a tooth shaped configuration protruding from a front surface thereof, a roller resiliently contacted on the slip prevention protuberance of the vertical movement member; and a driving motor whose rotating shaft is inserted into the roller for actuating the vertical movement member upwardly and downwardly by being supplied with electric power.
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