JPH1122343A - Shutter for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve smoke protection by constituting the shutter so that a panel is moved from the closed posture to the opened posture in accordance with the condition that the guide rail or the shutter curtain contained in a ceiling container is hung down. SOLUTION: A shutter 1 and a guide rail 6 are contained in a ceiling container 2 when the opening is opened and hung down from a lintel 5 when it is closed. This lintel 5 can be closed by a freely openable/closable panel 13. And the panel 13 is opened when the shutter curtain 1, and the guide rail 6 are hung down from the lintel 5. In this time, the panel 13 closes the upper part of the opening to form a smoke protection division. And when the guide rail 6 is transferred from the horizontal posture to the vertical posture, the panel 13 is automatically moved from the closed posture to the opened posture. In this way, a fireproof shutter excellent in smoke protection can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of architectural shutters provided in openings of buildings such as buildings and factories.

[0002]

2. Description of the Related Art Generally, in order to cope with abnormalities such as fires, entrances and exits of buildings and factories, large rooms, underground passages, etc. are generally provided with fire and smoke prevention sections to prevent spread of fire and spread damage. It is measured to suppress. As such, it is proposed to build a fireproof shutter for buildings. However, when the frontage is wide, it is necessary to arrange a plurality of shutter curtains in a row instead of a series. In this case,
A center pillar (guide rail) is required, but if the center pillar is fixed, there is a problem that the center pillar becomes an obstacle in normal times. On the other hand, a hanger type in which the center pillar is hung by a hanging roller, and in a normal state, the center pillar stored in the storage space formed on the left and right of the frontage is moved to a predetermined position in an emergency. It is proposed to adopt However, this method has a problem in that the shutter curtain cannot be closed until the center pillar is moved to a predetermined position, and the shutter curtain cannot be closed in an emergency in which the shutter curtain needs to be closed as soon as possible. is there. Therefore, the upper end of the guide rail is pivotally supported on the ceiling of the main body so as to be swingable between a horizontal position where it is housed in the ceiling and a drooping position where it hangs down from the opening, allowing the shutter curtain to close. It is proposed that the closing operation of the shutter curtain be guided by a guide rail that changes to the hanging posture, so that a quick closing operation can be performed.

[0003]

The guide rail and the shutter curtain are housed in a ceiling storage section above the opening, so that the opening is formed by swinging and deforming the guide rail. Opening and closing the opening by hanging down from the magsa section opened between the ceiling storage section and the opening section, in this case, the magsa section should be at least a guide so that the guide rail can enter and exit. The depth of the front and rear of the rail is required, and the depth of the magsa portion is set to be wide.
However, the wide magsa portion is open when the guide rail and the shutter curtain are opened in the ceiling storage portion in an open state, which is not preferable in appearance. On the other hand, as described above, the shutter curtain and the guide rail close the opening in the event of an abnormality such as a fire to prevent burning, but in this case, the shutter curtain is loosely fitted so as to be movable with respect to the guide rail. Due to the fitting, there is a possibility that smoke may escape from a gap formed between the shutter curtain and the guide rail, and it is desirable to improve the smoke-proof property. There was a problem.

[0004]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has been made with the object of solving these problems, and is provided with a shutter housed in a ceiling housing part above an opening. A closing posture for closing the magsa section, wherein the curtain and the guide rail are configured to close the opening section by hanging from a magsa section opened between the ceiling storage section and the opening section. And a panel body pivotally supported so as to freely swing and deform to an open position in which the magsa portion is hung down from the ceiling, and the panel body covers the upper portion of the opening in the open position. It is configured to be a panel. With this configuration, in a state where the shutter curtain and the guide rail are housed in the ceiling housing portion, the magsa portion can be closed by the panel body in the closed posture, which can make the appearance preferable. On the other hand, the panel body in the open position has the function of a smoke prevention panel that opens the magsa section and closes the top of the opening to prevent the diffusion of smoke in the event of a fire, etc. It becomes something. In this, the swinging transformation from the closed position to the open position of the panel body is performed by linking the guide rail or the shutter curtain stored in the ceiling storage unit to drop down,
It is possible to avoid such a problem that the guide rail and the shutter curtain are hung down while the panel body is in the closed posture, and it is possible to save the trouble of opening the panel body one by one.

[0005]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes shutter curtains of architectural fireproof shutters which are arranged side by side in the left and right direction in a large opening, and each shutter curtain 1 is stored in a ceiling storage section 2 provided above the opening. Opening in which the winding shaft 3 is wound and unwound with the forward and reverse rotation based on the forward and reverse driving of the brake-equipped switchgear 4 and is housed in the ceiling housing unit 2 to open the opening. It is configured to change into a posture and an open posture in which the opening is closed by hanging down from the magsa section 5 opened between the ceiling storage section 2 and the opening. Incidentally, these shutter curtains 1 open and close based on the operation of an operation switch (not shown). However, when a fire or the like occurs in the open state of the shutter curtain 1, the brake is released in accordance with the abnormality detection of the abnormality detecting means. The shutter curtain 1 is operated by the governor inside the switchgear 4
Is set so as to close down the opening by lowering its own weight with the speed adjusted.

On the other hand, a movable guide rail 6 for guiding each shutter curtain 1 is provided.
Are opposed to each other with a gap (a through guide to be described later) 6a,
A bracket formed of a pair of front and rear guide pieces 6 b and 6 c integrally connected to a base end (upper end) and a front end (lower end), and a base end provided in the ceiling storage unit 2. 7, which is swingably supported via a support shaft 6d, and swings into a horizontal posture in which it is housed in the ceiling housing part 2 and a hanging posture in which the tip end naturally hangs down. Supporting rollers 8 are rotatably supported on the front ends of the guide pieces 6b and 6c via pin shafts 8a at the front end portions in the front-rear direction on the inner surfaces in the front-rear direction. The base ends of the operating arms 9 are pivotally supported, respectively, and the distal ends of the operating arms 9 are further rotatably supported with auxiliary wheels 10.

Reference numeral 11 denotes a seat plate located at the lowermost end of the shutter curtain 1. On the front and rear surface portions of the seat plate 11, the support roller 8 and the auxiliary wheel 10 on the guide rail 6 side are prevented from falling off. Roller guide 1 that fits inside and rolls
1a, a notch 11b having an upper side cut out is formed on both left and right sides of the roller guide 11a, and the support roller 8 is connected to the roller guide 11a from the notch 11b. It is set so that you can enter and exit. Further, a mountain-shaped inclined guide 11d is formed on the bottom surface of the roller guide 11a at the left and right outer portions of the notch 11b. Further, stopper portions 11c are formed upright at the left and right outer ends of the inclined guide 11d to restrict further movement of the auxiliary wheels 10 to the left and right outside.

When the shutter curtain 1 is open, the guide rail 6 is restricted from lowering by the support roller 8 being supported by the roller guide 11a of the seat plate 11 housed in the ceiling housing section 2. As a result, the guide rail 6 is in a horizontal posture and is housed in the ceiling housing unit 2. At this time, the operation arm 9
The supporting roller 8 and the auxiliary wheel 10 are
a, and has a prone posture in which the base end is located inward in the left-right direction. When the shutter curtain 1 is unwound from this state, the guide rail 6 is gradually lowered by the support roller 8 and the auxiliary wheel 10 descending together with the seat plate 11 while rolling the roller guide 11a to the left and right outward. Swing toward the posture side. In this state, the shutter curtain 1 is guided in a state in which the gap between the guide pieces 6b and 6c serves as a penetrating guide 6a and penetrates the same in the left-right direction. When the shutter curtain 1 approaches the fully closed position, the support roller 8 comes off the notch 11b of the roller guide 11a and becomes free from the seat plate 11. 10 is set so as to abut against the stopper portion 11c, and further outward movement in the left-right direction is restricted (FIG. 2A). After the movement is restricted, the operating arm 9 gradually rises by lowering while the auxiliary wheel 10 is supported by the seat plate 11, whereby the guide rail 6 is moved through the operating arm 9 by the seat plate. At this point, the shutter curtain 1 is in a state slightly before the shutter curtain 1 is fully closed, and the shutter curtain 1 is in a state of being suspended. A gap S that allows air to flow is formed (FIG. 2B).
Then, in a state where the gap S is formed, the guide rail 6 in the hanging posture is fixed to the skeleton floor surface by a latch pin (not shown).
The guide rail 6 can be securely fixed at a stage before the wind pressure generated by a fire or the like greatly acts on the shutter curtain 1 immediately before full closure. Further, after the guide rail 6 is set to the hanging posture and fixed to the skeleton side, the closing operation of the shutter curtain 1 is continued, the auxiliary wheel 10 is separated from the stopper portion 11c, and the operating arm 9 is in a free hanging state. Then, the shutter curtain 1 is fully closed (FIG. 2C).

On the other hand, when the shutter curtain 1 in the fully closed state is opened, the fixing of the guide rail 6 and the frame floor is first released, and then the shutter curtain 1 is opened. At this time, the auxiliary wheel 10 is received by the inclined guide 11d and guided in a state of rolling down toward the stopper portion 11c, whereby the operating arm 9 is moved to the guide rail 6 in the hanging posture. On the other hand, the tip end side on which the auxiliary wheel 10 is journalled has an inclined posture positioned left and right outward with respect to the base end side. The guide rail 6 is connected to the seat plate 11 via the operation arm 9.
In this case, the operating arm 9 is inclined with respect to the guide rail 6 as described above, so that the upper power of the seat plate 11 is
The base end side acts on the operating arm 9 in a direction in which the operating arm 9 changes to a lying posture facing inward in the left-right direction, so that the operating arm 9 gradually assumes a lying posture and the guide rail 6 swings upward. It has a configuration. When the shutter curtain 1 is further wound up from the above state, the support roller 8 is fitted into the roller guide 11a from the notch 11b, whereby the guide rail 6
From the state via the support roller 8 to the state via the support plate 11, and thereafter, in this state, the guide rail 6 changes to the horizontal position with the shutter curtain 1 in the fully open position in this state. And is stored in the ceiling storage section 2. In the figure, reference numeral 12 denotes a fixed guide rail fixed to the skeleton side.

On the other hand, a plurality of panel members 13 are arranged in the left and right direction to open and close the magsa portion 5.
5, which is rotatably supported vertically so as to be capable of swinging between a closed position, which projects horizontally and closes the magsa portion 5, and an open position, which hangs downward to open the magsa portion 5. It has become. And the shutter curtain 1
In a state where the guide rail 6 is stored in the ceiling storage section 2, the magsa section 5 can be closed by setting the panel body 13 to the closed posture, and the shutter curtain 1 and the guide rail 6 are connected to the magsa section 5. In the state where the panel body 13 is suspended from the camera, the magsa section 5 can be opened by setting the panel body 13 to the open position, and the panel body 13 in the open position closes the upper part of the opening to form a smoke prevention section. It is designed to provide a smoke-proof panel to prevent the spread of smoke in the event of a fire or the like.
In the drawing, reference numeral 16 denotes an air cylinder interposed between the panel body 13 and the front wall surface 14 so that the air cylinder 16 can open and close the panel body 13 in a light and shock-absorbed state. Has become.

Reference numeral 17 denotes a locking device for holding the panel body 13 in a closed position.
Is constituted by using members such as a support shaft 18, a latch 19, and a lock receiving piece 20. In other words, the support shaft 18 is a left-rightward shaft that is rotatably supported on the front end of the upper surface of the panel body 13 (the upper surface in the closed posture) via the bracket 21 in the direction around the axis. A pair of left and right latches 19 are integrally attached to both left and right sides of the support shaft 18. Here, in the present embodiment, the support shaft 18 is formed by a screw shaft, and the latch 19 is fixed to be freely movable by a nut 18a screwed onto the support shaft 18. On the other hand, the panel body 1 is provided on the rear side wall surface 22 of the magsa section 5.
When the lock 3 is in the closed position, the lock receiving pieces 20 that can lock and unlock the lock projections 19a formed on the left and right latches 19 are fixed. The left and right latches 19 are, with the support shaft 18 as an axis, the locking posture in which the locking projection 19a is locked to the locking receiving piece 20, and the locking of the locking projection 19a to the locking receiving piece 20 is released. In this case, since the left and right latches 19 are connected in a series through the support shaft 18,
At the same time, it is set to swing. Further, these latches 19 are constantly urged toward the locking posture side by the urging force of a torsion coil spring 23 interposed between the brackets 21, so that the panel body 13 can be held in the closed posture. Has become. On the other hand, when the guide rail 6 is transformed from the horizontal posture to the hanging posture and swings, the latch 19 in the locking posture is configured such that the rear guide piece 6 c of the descending guide rail 6 is formed on the latch 19. 19
By contacting and pressing downward (this state is indicated by a phantom line in FIG. 4), the torsional coil spring 23 swings toward the release position against the urging force of the torsion coil spring 23. ing. Further, the descending guide rail 6 is provided with a latch 19.
Is pressed downward, whereby the front end side of the panel body 13 is pressed downward, and the panel body 13 automatically swings into the open position. Here, the descending guide rail 6 first comes into contact with one of the left and right latches 19 located at the tip end side of the guide rail 6 and swings the latch 19 to the release posture side. In this case, the left and right latches 19 swing and deform at the same time, as described above, so that one latch 19 is released and the other latch 19 is still in the locked state. Troubles can be avoided.

On the other hand, when closing the panel body 13 in the open position, the front end of the panel body 13 is pushed toward the closed position, and the panel body 13 is brought into the closed position to close the magsa section 5. I do. At this time, the upper surface of the locking projection 19a of the latch 19 abuts on the locking receiving piece 20 from below.
An inclined guide surface 19c is formed on the upper surface of the locking projection 19a, and the locking projection 19a can pass over the locking receiving piece 20 while being guided by the guide surface 19c. I have.

Further, as described above, the plurality of panel bodies 13 are arranged side by side in the left-right direction. However, these panel bodies 13 are configured to swing from the closed position to the open position almost simultaneously. Have been. That is, 24 is a connecting device provided between the panel bodies 13 adjacent in the left-right direction, and the connecting device 24 is a pressing body 25 provided on one panel body 13 </ b> R located on the tip end side of the guide rail 6.
And the other panel body located on the base end side of the guide rail 6 with respect to the panel body 13R (or the other panel body located on the fixed guide rail 12 side and the latch 19 is not released by the descending guide rail 6). Panel body) 13L
, And a latch release member 26 provided at the second position. Further, the pressing body 25 is connected to the one panel body 13R.
And a pressing piece 25b protruding from the leg piece 25a toward the other panel body 13L.
However, the projecting position of the pressing piece 25b is set so as not to exceed the outer edge of the one panel body 13R.

The latch release member 26 is composed of an oscillating body 27, an operating body 28, and the like. The oscillating body 27 has a base end at the end of the support shaft 18 of the locking device 17. Similarly to the latch 19, it is integrally attached by a nut 18a, and the tip end is the one panel body 13R.
Although it protrudes toward the side, the protruding position is set so as not to exceed the outer edge of the other panel body 13L.
The actuating body 28 has its base end pivotally supported on the distal end of the oscillating body 27 via a pin shaft 29 so as to be vertically swingable. And this operating body 28 uses the above-mentioned pin shaft 29 as a support shaft,
The distal end portion can swing and transform into a connecting posture in which the distal end portion projects below the pressing piece 25b on the one panel body 13R side and a retracting posture in which the distal end portion faces upward. The body 28 is set so as not to exceed the outer edge of the other panel body 13L. Further, the operating body 28 is constantly urged to the connecting posture side by the ammunition device 28a, and at the time of the connecting posture, the locking piece 28b formed on the operating body 28 is locked to the tip of the rocking body 27 from above. Thus, further downward movement of the operating body 28 about the pin shaft 29 is restricted. Thus, when the distal end portion of the operating body 28 in the connection posture is pressed downward, the downward movement about the pin shaft 29 of the operation body 28 is restricted as described above, so that the operating body in the connection posture is restricted. Oscillator 27 with 28
Also moves downward integrally, but the operating body 28 in the connected posture
When the distal end portion is pressed upward, only the operating body 28 swings upward with the pin shaft 29 as an axis to be in a retracted posture. Further, when the distal end of the rocking body 27 moves downward, the support shaft 18 integrally attached to the base end of the rocking body 27 rotates. In this case, the support shaft 18 The latch 19 is set so as to rotate to the side where the latching posture is changed from the locking posture to the releasing posture.

As described above, when the guide rail 6 swings from the horizontal posture to the hanging posture, first, the guide rail 6 is attached to the latch 19 of one panel body 13R located on the tip end side of the guide rail 6. The one panel body 13R automatically swings from the closed position to the open position, and the one panel body 13R descends at this time.
Push piece 25b pushes the distal end of the operating body 28 of the other panel body 13L downward, whereby the distal end of the swinging body 27 moves down as described above, and the latch 19 moves the support shaft 18 to the release posture. The other panel body 13L is also rotated to the side of the one panel body 13R.
Almost at the same time, it automatically changes from the closed position to the open position.

On the other hand, when closing the panel 13 in the open position, the panel 13 may be pushed toward the closed position as described above. At this time, the other panel 13L is pressed.
Of the one panel body 1
If it protrudes to the 3R side, the operating body 28 obstructs and the other panel body 13L cannot be closed, but in this case, the operating body 28 is set in the evacuation position by hand or the like, so that there is no hindrance. It can be closed.

In the embodiment of the present invention configured as described above, the shutter curtain 1 and the guide rail 6
When the opening is opened, it is stored in the ceiling storage unit 2 and when the opening is closed, it hangs down from the magsa unit 5. The magsa unit 5 can be closed by the openable and closable panel body 13. It has become. As a result, even when the depth of the magsa portion 5 is widened so as to allow the guide rail 6 to enter and exit, the panel is formed when the shutter curtain 1 and the guide rail 6 are stored in the ceiling storage portion 2. The magsa section 5 can be closed by the body 13, and the magsa section 5
Does not remain open, and can be made preferable in appearance.

Further, when the shutter curtain 1 and the guide rail 6 hang down from the magsa section 5, the panel body 13 assumes an open position to open the magsa section 5. In this case, The panel body 13 in the open position closes the upper part of the opening to form a smoke-proof section, thereby functioning as a smoke-proof panel for preventing the diffusion of smoke in the event of a fire or the like. Can also provide an excellent fireproof shutter.

Further, the swinging transformation of the panel body 13 from the closed posture to the opening posture is automatically performed in conjunction with the swinging transformation of the guide rail 6 from the horizontal posture to the hanging posture as described above. Therefore, it is possible to avoid a problem that the panel body 13 remains in the closed posture when the shutter curtain 1 is automatically closed by the detection of the abnormality detecting means in an emergency such as a fire. There is no need to open each time.

Further, in this device, a pair of left and right latches 19 for holding the panel body 13 in the closed position are connected in a series via a support shaft 18, and simultaneously swing between the locked position and the released position. Because it has a dynamic transformation configuration,
Although one latch 19 is released, the other latch 1
This is advantageous because it is possible to avoid the problem that the lock 9 is still locked. In the present embodiment, two left and right latches are provided for one panel body. However, even in a case where three or more latches are provided, a configuration in which the panel simultaneously swings and deforms is similarly provided. Can be

Further, a plurality of the panel bodies 13 are arranged in the left-right direction. As described above, the panel bodies 13 located on the tip end side of the guide rail 6 are firstly provided with the guide rails. It comes in contact with 6 and opens,
In conjunction with the opening operation, the adjacent panel bodies 13 are also opened almost at the same time. Thus, almost simultaneously with the start of the lowering of the guide rail 6, the plurality of panel bodies 13 are simultaneously opened and the upper part of the opening is closed. As a result, in an emergency such as a fire, the diffusion of smoke can be promptly prevented.

A connecting device for simultaneously releasing the latches of the plurality of panel bodies 13 may be configured as in the second embodiment shown in FIG. That is, in the second embodiment, the pressing body 30 is provided on the one panel body 13 </ b> R in which the latch is released in advance, similarly to the above-described first embodiment. 30
The pressing piece 30a formed on the other panel body 13L protrudes to a position above the distal end of the rocking body 31 provided on the other panel body 13L. Further, the other panel body 13L is provided with the same oscillating body 31 as in the first embodiment, but is not provided with an operating body, and the one panel body 13R is released from the latched state to be closed. When swinging into an open position,
The pressing piece 30a of the one panel body 13R lowers the tip of the oscillating body 31 of the other panel body 13L,
The other panel body 13 in the same manner as in the first embodiment.
The configuration is such that L is unlatched. The second embodiment has an advantage that the number of parts can be reduced.
3, the one panel body 13R on which the pressing piece 30a is provided may be closed prior to the other panel body 13L, and if the closing is performed in this order, the pressing piece 30a is closed.
Does not hinder the closing of the other panel body 13L.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an architectural shutter.

FIGS. 2A, 2B, and 2C are explanatory views showing a relationship between a seat plate and a guide rail in a shutter curtain closing operation process.

FIG. 3 is a cross-sectional view of a guide rail portion in a process of opening and closing a shutter curtain.

FIG. 4 is a partially cutaway side view of a ceiling storage unit showing the panel body in a closed posture.

FIG. 5 is a side view of a ceiling storage unit showing the panel body in an open posture.

FIG. 6 is a plan view of a locking device and a coupling device.

7 (A) and 7 (B) are views taken in the direction of arrow X in FIG. 6, wherein (A) shows a state in which both panel bodies are in a closed position, and (B) shows a state in which a pressing body presses an operating body. Indicates a state in which

8 (A) and 8 (B) are views taken in the direction of the arrow Y in FIG. 6; FIG. 8 (A) shows a state in which both panel bodies are in a closed position, and FIG. Indicates a state in which

FIG. 9 is a front view of a connecting device according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shutter curtain 2 Ceiling storage part 5 Magsa part 6 Guide rail 13 Panel body 17 Locking device 18 Support shaft 19 Latch 20 Lock receiving piece 24 Connecting device 25 Pressing body 26 Latch release member

Claims (2)

[Claims] 1. A shutter curtain and a guide rail housed in a ceiling storage section above an opening are closed from the magsa section opened between the ceiling storage section and the opening to close the opening. In the architectural shutter configured, a closing posture to close the magsa portion,
In providing a panel body that is pivotally supported so as to swing freely in an open position in which the magsa portion is opened by hanging from the ceiling, the panel body is used as a smoke-proof panel that covers the upper portion of the opening in the open position. An architectural shutter configured to be. 2. The construction according to claim 1, wherein the swinging transformation of the panel body from the closed position to the open position is performed in conjunction with the hanging of the guide rail or the shutter curtain stored in the ceiling storage unit. Shutter.