| 摘要 |
The present invention provides an inexpensive, power-saving, and space-saving shutter device that may simplify the mechanism, multifunction each component, and reduce the number of components in comparison with the conventional shutter device. One linkage serves to open and close a shutter, as well as lock the shutter at the closing position. The number of components is reduced in comparison with the conventional structure which provides a plurality of separate devices for such opening, closing, and locking. In addition, the number of driving devices becomes reduced down to one, thereby saving power.
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