Door device with pressure difference mitigating mechanism
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United States of America Patent
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Jun 6, 2017
Issued Date -
N/A
app pub date -
Feb 7, 2013
filing date -
Feb 10, 2012
priority date (Note) -
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Abstract
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.
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Family
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