| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve operability of a door device with a ventilation mechanism provided in such an opening as to partition indoor and outdoor sides of a main entrance and the like. <P>SOLUTION: In a door device 1, a door body 2 with a predetermined door thickness, which comprises a pair of inner and outer face plates 5 and 6, is provided with a ventilation mechanism comprising a ventilation passage for providing ventilation between spaces facing inner and outer side surface portions 5a and 6a of the door body 2, and switching means 14 for switching a state of the ventilation passage to either an opened or closed state and maintaining the state. The switching means 14 is linked to one 11 of first and second locking devices 10 and 11 that are provided separately from a handle 9 of the door body 2 and operated for locking/unlocking by a key from the outside of the door body 2. The ventilation passage is put into the opened state along with the locking operation of the second locking device 11, and switched to the closed state along with the unlocking operation of the locking device and kept in the closed state. <P>COPYRIGHT: (C)2012,JPO&INPIT |
