INSIDE/OUTSIDE PRESSURE DIFFERENCE ELIMINATION DEVICE FOR CLOSING BODY

Japanese Patent JP2016075035

A

PROBLEM TO BE SOLVED: To provide an inside/outside pressure difference elimination device for a closing body that eliminates an air pressure difference whenever the difference occurs between inside and outside of a door, enabling usual and comfortable operation of a door lock handle and other operation members, reducing a number of constituent parts for facilitating fitting work, at the same time reducing costs.SOLUTION: An inside/outside pressure difference elimination device 1 having movable bodies 30, 60 is installed at an appropriate location on a door D at least on an indoor side, where an inside/outside pressure difference is negative. The movable bodies 30, 60 of the inside/outside pressure difference elimination device 1 tightly seals outside air introduction passages 33, 35 of the inside/outside pressure difference elimination device 1 when the inside/outside pressure difference at the door D is almost 0. When the pressure difference increases, the movable bodies 30, 60 are pressed toward inside by the outside air, and the outside air flows into the room through the outside air introduction passages 33, 35 formed on the movable body 30, thus eliminating the inside/outside pressure difference at the door.SELECTED DRAWING: Figure 6

FUJIWARA TOSHIHIRO

JP2014204342A

May 12, 2016

October 02, 2014

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GOAL KK

E06B7/02

JP2010144472A	2010-07-01
JPH06109154A	1994-04-19

KR101386725B1

2014-04-29

Tomijiro Tamari
Tokio Tachikawa

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