01-01-2015 дата публикации
Номер: US20150000198A1
Принадлежит:
A door is formed into a folding door by dividing the door into two parts to left and right, that is, a hanging door and a door-end door pivotally supported by the hanging door, and the door-end door is used as the pressure difference mitigating mechanism, and the two doors are integrally operated in a normal time, while if a pressure difference is generated, the door-end door can be first opened in order to reduce an opening force, and the door device with a pressure difference mitigating mechanism with excellent operability is provided. 1. A door device with pressure difference mitigating mechanism , characterized in thata door is divided into two parts to left and right, that is, a hanging door and a door-end door pivotally supported by the hanging door;a handle for opening/closing the door, a door closer, a hinge closer supporting/rotating the door-end door with respect to the hanging door and having a pressure in a closing direction, a latch A of the door-end door to a door frame, and a latch B of the door-end door to the hanging door are provided; anda relationship of the following:{'sub': 'H', 'a door opening force required against a door dosing force of the door closer (handle position): D'}{'sub': 'HC', 'a door dosing force required against a door opening force of the door closer (handle position): D'}{'sub': 'H', 'a door opening force required against a door dosing force of the hinge closer (handle position): A'}{'sub': 'H', 'a force required against a releasing force of the latch B (handle position): LB'}{'sub': 'H', 'a load acting on the entire door by an air pressure difference (acting in a closing direction) (handle position): PA'}{'sub': 'H', 'a load acting on the door-end door by the air pressure difference (acting in the dosing direction) (handle position): PB,'} [{'br': None, 'i': D', 'PB', '+A', '+LB, 'sub': H', 'HC', 'H', 'H', 'H, '.'}], 'is set as follows2. The door device with ...
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