JPS5838859Y2 - Anti-shock composite door - Google Patents

Description

[Detailed explanation of the invention] This invention is related to a composite wind door that has an inner door that automatically flips open inward due to the crushing pressure when the outer frame is crushed due to an earthquake or the like and cannot be opened or closed. 1 to 1 side pivot joint 2,
In the door that can be opened and closed freely in step 2, an inner frame 4 is provided on the door body 3 with four peripheral parts left, a beveled edge 5 is formed on the inner peripheral edge of the inner frame 4, and an inner door 6 is provided on the inner frame 4. is hinged, and a beveled edge 7 is formed on the outer peripheral edge of the inner door 6, the beveled edge 5 and the inclined surface coming into close contact with each other.

Since the present invention has the above structure, even if the door frame is deformed and crushed due to cracks and collapse of the wall due to a strong earthquake, etc., and the door body cannot be opened, the pressure of the deformed four circumferential parts will be applied to the inner frame 4.
The inclined surface of the beveled edge 5 pushes the inclined surface of the beveled edge 7 of the inner door 6 and flips the inner door open.

Therefore, even if the door frame is crushed and deformed and the door body cannot be opened, the inner door in the inner frame can be automatically opened by the crushing force without any damage, allowing evacuation to take place outdoors.

Note that if the inner door can only be opened and closed from the inside, it will be safe from regular voice prints.

In the event of a natural disaster, especially a strong earthquake, concrete walls often collapse, crushing and deforming the door frame, making it impossible to open or close the door.
According to the present invention, even if the door frame is crushed and the door body is deformed, the inner door always maintains its original shape and is repelled, making it easier to open and allowing the inner door to open and close freely.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the expanded state, and FIG. 2 is a sectional view showing the merged portion of the beveled edges. 1 is a door frame, 2 and 2 are pivot parts, 3 is a door body, 4 is an inner frame, 5 is a beveled edge, 6 is an inner door, and 7 is a beveled edge.

Claims (1)

[Scope of utility model registration request] In a door frame 1 such as an entrance, which can be opened and closed freely by pivot joints 2, 2 on the 1 side, an inner frame 4 is provided on the door body 3 leaving four circumferential parts, and the inner frame 4 has a diagonal edge. An inner door 6 is hinged to the inner frame 4 so as to be openable and closable, and a beveled edge 7 is formed on the outer peripheral edge of the inner door 6 so that the beveled edge 5 and the inclined surface are in close contact with each other. Combined wind for earthquakes.