JPH0329488Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an exit door device for evacuation to the outside in a pneumatic membrane roof structure.

(Prior art) and (problems to be solved by the invention) The exit door installed between the internal pressurized space and the outside in a conventional air membrane roof structure has no measures against internal pressurized air. Therefore, when the door is opened, the internal pressure is 50 mmAq, and the
Wind of 20m/sec will be generated, creating an obstacle during evacuation.

(Means for solving the problem) The present invention was proposed in order to solve the above problem, and a smoke exhaust window is arranged above the evacuation exit door of the air membrane structure. One end of the unlocking/locking cable is connected to the lock of the smoke exhaust window, and the other end of the same cable is connected to the protrusion of a vertical lever that is pivotally supported within the cover of the smoke exhaust window opening/closing device at the top of the exit door. At the same time, a spring is interposed between the protrusion and a protrusion provided in the cover to urge the lever and the cable to always be held in the unlocked position of the smoke exhaust window, and the vertical lever is An evacuation exit in an air membrane roof structure, characterized in that the bar is provided with a protruding stopper that abuts against the tip of the lifting rod of the lock of the exit door and prevents the lever from rotating due to the biasing force of the spring. This relates to a door device.

(Function) Since the present invention is constructed as described above,
When opening the exit door in an emergency evacuation, the elevating rod of the lock on the exit door moves, and the restraining force of the vertical rod against the restraining rod is released, causing the vertical rod to release the spring. The smoke exhaust window is rotated by the force of the rod, and unlocks the smoke exhaust window that is linked to the wire that is driven by the rotation of the rod;
By opening the smoke exhaust window, the initial internal pressure is released to the outside, reducing the wind speed and making evacuation easier.

(Effect of the invention) As described above, according to the invention, when the evacuation exit door of the air membrane roof structure is opened, the upper smoke exhaust window is opened prior to opening the door, and the smoke inside the structure is opened. Evacuation is carried out safely by releasing the pressurized air in the pressurized space, and according to the present invention, the opening and closing of the smoke evacuation window is linked to the opening and closing of the exit door. This is simple and allows the use of a conventional exit door opening/closing mechanism, resulting in cost savings.

(Example) The present invention will be described below with reference to the illustrated embodiments.

A is a pressurized space in the pneumatic membrane roof structure, which in the illustrated embodiment is used as a pool.
B and B' are a pair of evacuation exit doors on the left and right.

1 is a lever handle of an extension bolt lock (clemorne bolt) attached to each exit door B, and one lever handle 1 normally has a handle that fits into the lever handle 1' of the other exit door B'. A cover 2 is attached to prevent the lever handle 1' from being operated first.

In addition, the lever handle 1 includes the lever handle 1.
A gremon rod 3 that moves up and down as it rotates is linked.

Smoke evacuation windows C, C' are disposed above the exit doors B, B', and are equipped with smoke evacuation locks D, D', respectively.

Reference numeral E denotes a cover for a smoke exhaust window opening/closing device.The lower end of a vertical lever 5 is fixed to a rotating shaft 4 mounted inside the cover E, and one smoke exhaust lock is attached to the upper end protrusion 6' of the lever 5. The proximal end of a stainless steel wire 7' connected to D' is fixed, and the stainless steel wire 7 connected to the other smoke evacuation lock D is connected to the protrusion 6 disposed below the protrusion 6'. A spring 10 is connected between the protrusion 6 and the protrusion 9 disposed within the cover E after passing through a pulley 8 disposed within the cover E.
is tensioned, and the lever 5 is rotated counterclockwise in FIG. 1 by the biasing force of the spring 10. Note that the stainless steel wires 7, 7'
When the smoke evacuation windows C and C' are towed, the latches 11 provided on the smoke evacuation windows C and D' rotate in the direction of the arrow in Fig. 3 via an interlocking mechanism (not shown) to lock the smoke evacuation windows C and C' is released, and the smoke exhaust windows C and C' are configured to be opened as shown by the arrows by an activation device (not shown) built in them. F in the figure is the door frame.

Further, a stop rod 12 is fixed to the rotating shaft 4 so as to be orthogonal to the same shaft 4, and the end of the stop rod 12 collides with the upper end of the gremon rod 3, causing the lever 5 to be rotated in the counterclockwise direction by the spring 10. movement is suppressed.

Further, above the lever handles 1, 1' of each of the exit doors B, B', there are thumb turns 13, 13' and plastic thumb turn covers 14, 1.
4' is provided.

Since the illustrated embodiment is constructed as described above, in the event of an emergency evacuation, the thumb turn covers 14, 1
4' and rotate the thumb turns 13, 13' to unlock the door itself.

Next, when the lever handle 1 of the exit door B is rotated upward, the handle cover 2 is attached to the lever handle 1'.
Then, the handle 1' can be operated.
(See FIG. 6) As the lever handle 1 is rotated upward, the gremon rod 3 is lowered, and the restraint on the restraint rod 12 is released, and the spring 10 is accordingly released.
The lever 5 rotates in the counterclockwise direction in FIG. 1 due to the force of ' is unlocked, and the same smoke exhaust windows C and C' are released.

In this state, the lever handle 1' is operated to open the exit doors B, B'.

According to the illustrated embodiment, the lever handle 1 of the Gremont lock provided on the exit door B is first operated to open the smoke exhaust windows C and C' disposed above the exit doors B and B'. After the pressurized air in the pressurized spaces A and A is released by
sec) by opening the exit doors B and B', a safe evacuation can be made.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view of essential parts of an embodiment of the evacuation exit door device for an air membrane roof structure according to the present invention, Fig. 2 is a longitudinal sectional side view thereof, and Fig. 3 is a longitudinal sectional view of the smoke evacuation lock portion thereof. 4 is a front view of the evacuation exit section equipped with the device of the present invention, FIGS. 5 and 6 are front views showing the operating sequence of the device of the present invention, and FIG. 7 is a front view of the evacuation exit section equipped with the device of the present invention. FIG. 3 is a plan view of the installed air membrane roof structure. A...pressurized space, B, B'...exit door, C, C'...
...Smoke exhaust window, E...Smoke exhaust window opening/closing device cover, D,
D'...Smoke exhaust lock, 1...Lever handle, 3...
Gremon Rod, 4... Rotating shaft, 5... Lever,
6...Protrusion, 7,7'...Stainless steel wire, 8
... Pulley, 9 ... Protrusion, 10 ... Spring, 1
1...Latsuchi, 12...Suppression stick.

Claims (1)

[Scope of utility model registration request] A smoke exhaust window is installed above the evacuation exit door of the air membrane structure, one end of the unlocking/locking cable is connected to the lock of the smoke exhaust window, and the other end of the cable is connected to the lock of the smoke exhaust window above the exit door. The lever and cable are connected to the protrusion of a vertical lever pivotally supported within the cover of the smoke evacuation window opening/closing device, and the lever and cable are always connected between the protrusion and the protrusion provided within the cover of the smoke evacuation window. A spring biased to hold the lock in the unlocked position is interposed, and the vertical lever is provided with a stop that collides with the tip of the lifting rod of the lock of the exit door and prevents the lever from rotating due to the biasing force of the spring. An evacuation exit door device for an air membrane roof structure characterized by having a protruding rod.