| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an opening-closing door device capable of improving certainty of automatic closing of an opening-closing body locked in an optional opening position, when there is a disaster preventive signal. <P>SOLUTION: This opening-closing door device has a door body 5 capable of opening-closing operation in the width direction of an opening part, a long size towing member 21 towing the door body 5 in the closing direction, a winder 20 winding the towing member 21 by energizing force of an energizing member from the door body closing direction side, and engaging-disengaging devices 30 and 40 locking the door body 5 in an opening midway position and/or a full opening position against the energizing force. When there is the disaster preventive signal, a locking state by the engaging-disengaging devices 30 and 40 is released by adding winding force larger than the energizing force of the energizing member to the winder 20. <P>COPYRIGHT: (C)2008,JPO&INPIT |
