JPH10153060A - Architectural shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent smoke from leaking from a through guide formed in the guide rail of a fire shutter by forming the guide rail in ceiling storing type when escape door is installed adjacent to and in parallel with a fire shutter. SOLUTION: A plugging body 10 which plugs the through guide of a guide rail 5 from the outer right and left directions is provided on an escape door 8. In this case, the plugging body 10 is formed so that it is pivotally supported variably in a storing position in which it is stored in the recessed groove part of the escape door 8 and in a plugging position in which the through guide formed in the guide rail 5 under suspended position is plugged from the outer right and left directions so as to achieve a plugging position based on the detection of full closing of a shutter curtain 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technical field of architectural shutters provided for forming fire and smoke prevention areas in openings, large rooms, underground passages, etc. of buildings such as buildings and factories. Belong to.

[0002]

2. Description of the Related Art Generally, fire and smoke prevention compartments are set up in an opening of a building or factory, a large room, or an underground passage in order to cope with an abnormal situation such as a fire, thereby preventing the spread of fire and suppressing the spread of damage. It is planned to do so. In this case, fire protection,
The formation of a smoke barrier can be achieved by closing the shutter curtain with fire protection, but this means that those who are left behind cannot escape, and there is a situation in which the shutter curtain is adjacent to the shutter curtain in the closed position. It has been practiced to provide an evacuation door that opens and closes. However, if the evacuation door is always closed, the opening becomes narrower and the like, which is an obstacle. Therefore, it is proposed that the evacuation door is always opened and closed when an abnormality occurs. On the other hand, architectural shutters require a guide rail to open and close the shutter curtain, but when the guide rail is fixed, the evacuation door is always open when the evacuation door is always open. The guide rail is left behind, which is an obstacle.

Therefore, as shown in Japanese Utility Model Laid-Open Publication No. 48-8055, it has been proposed to provide a guide rail on an evacuation door. However, in this case, since the guide rail cannot be set to the predetermined position until the evacuation door is closed, the closing operation of the shutter curtain must be performed after the evacuation door is fully closed, and it is not necessary There is a problem that even though the shutter curtain is to be closed quickly, this cannot be performed and the disaster prevention function is inferior.
To cope with this, the guide rail is pivotally supported at the upper end on the ceiling side so that it can swing to a horizontal position and a hanging position in conjunction with the opening and closing operation of the shutter curtain. Configure and close the shutter curtain,
It is conceivable that the simultaneous closing operation can be performed irrespective of the closure of the evacuation door.

[0004]

However, in such a configuration, the guide rail guides the shutter curtain in the left-right direction in the opening / closing operation process. It will be a split type inside and outside (front and rear) opened in
Even if the shutter curtain is closed, the inside and outside communicate with each other at the penetrating guide portion of the guide rail, resulting in inferior disaster prevention function, and there is a problem to be solved by the present invention.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been created with the object of solving these problems. When the evacuation door provided to open and close at the position adjacent to the shutter curtain in the closed position is arranged in parallel with the shutter curtain that changes to the open position, the guide rail on the evacuation door side of the shutter curtain,
The upper end is pivotally supported on the ceiling side, and a penetration guide is provided at the bottom of the rail to guide the shutter curtain in a penetrating state, and changes to a horizontal position and a hanging position in conjunction with the opening and closing operation of the shutter curtain. An interfering member that interferes with the lowermost seat plate of the shutter curtain is provided at the lower end so as to be movable, while the evacuation door is used to close the penetrating guide of the guide rail that is in a hanging posture. A closing member is provided. As a result, the shutter curtain can be quickly closed, and the disaster prevention function can be improved. In this case, the evacuation door and the shutter curtain of the present invention can be set to start the closing operation together upon receiving a detection signal from abnormality detection means such as a fire. Further, in this case, the evacuation door of the present invention shall be pivotally supported on the skeleton side so as to be capable of opening and closing and swinging, while the closing member is on the upper side or the lower side in the closing direction of the evacuation door to close the guide of the guide rail. At least one of the sides.

[0006]

FIG. 1 shows an embodiment of the present invention.
This will be described based on the drawings shown in FIGS. In the drawings, reference numeral 1 denotes shutter curtains of fireproof shutters arranged in parallel in a large opening.
Is wound on a take-up shaft 2 that is supported on the ceiling side.
The take-up shaft 2 is taken up and unwound in accordance with the forward / reverse rotation of the switch 3 with a brake based on the forward / reverse drive, and is unwound and closed, and the open position is stored in the ceiling. And it is set to transform into. 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 along with the abnormality detection of the abnormality detection means, and Switch 3
The shutter curtain 1 is set to close by its own weight by the function of the governor installed in the interior. Reference numeral 4 denotes a lowermost seat plate of the shutter curtain 1, and the seat plate 4 is a bottom plate portion 4.
a and the front and rear plate portions 4 standing upright on both front and rear sides thereof
b, 4c, and has a substantially chevron shape when viewed from the side.
Roller guides 4d are formed in b and 4c so that a support roller 6 to be described later can be rollably fitted therein.
At both left and right ends of the bottom plate 4a, stopper pieces 4e are formed to protrude upward.

Reference numeral 5 denotes a guide rail for guiding each of the shutter curtains 1. The guide rail 5 is constituted by a pair of front and rear guide pieces 5b and 5c opposed to each other with a gap (a through guide to be described later) 5a. With the base end (top end)
Is supported on the ceiling frame side via a support shaft 5d so as to be swingable, and the support roller 6 is rotatable in a state in which each of the guide pieces 5b and 5c at the tip end (lower end) faces each other. It is bearing on. Further, a base end of an operating arm 7 is pivotally supported on each of the guide pieces 5b and 5c via a pin shaft 7a in the vicinity of the support roller 6. Here, each operating arm 7 has an auxiliary wheel 7b supported at its distal end, and is set so as to move on the upper surface of the seat plate bottom plate 4a as described later. The length is set so as not to exceed the tip of the guide rail 5 in the posture. Reference numeral 5e denotes a latch pin provided so as to be able to protrude and retract from the front end (lower end) of the guide rail 5, and detects that the guide rail 5 has changed to the hanging posture, that is, that the shutter curtain 1 has been almost fully closed. The lower end of the guide rail 5 can be locked by automatically projecting and engaging with the engagement receiving portion F on the skeleton side in accordance with the releasing operation of the locking means 5f accompanying the above.

When the shutter curtain 1 is stored, the guide rail 5 is restricted from moving downward while the support roller 6 is supported by the roller guide 4d located in the lintel portion. It is set to be stored in the ceiling in a horizontal position. At this time, the operating arm 7 is configured such that the auxiliary wheel 7b is connected to the seat plate bottom plate portion 4a.
, And has a prone posture in which the base end is located inward in the left-right direction. From this state, the shutter curtain 1
Is unwound, the guide rail 5 swings downward toward the hanging posture side while the support roller 6 rolls the roller guide 4d. With this, the operating arm 7 moves the auxiliary wheel 7b. While the upper surface of the bottom plate portion 4a rolls outward in the left-right direction, the shutter curtain 1 is guided in a state in which the gap between the guide pieces 5b and 5c serves as a through guide 5a and penetrates the right and left directions. Is done. When the shutter curtain 1 approaches the closed position, the support rollers 6
Is released from the left and right ends of the roller guide 4d and is free from the seat plate 4, so that the operating arm auxiliary wheel 7b reaches the end position of the bottom plate portion 4a so as to match the timing with the stopper plate 4e. Abuts the corner (Fig. 1
0), the further outward movement of the auxiliary wheel 7b in the left-right direction is restricted. After the movement is restricted in this manner, the guide rail 5 swings downward while being supported by the seat plate 4 via the operating arm 7, and the guide rail 5 assumes a substantially hanging posture (FIG. 11). (A)), at the same time, the auxiliary wheel 7b is separated from the seat plate stopper piece 4e, the operating arm 7 is freely suspended, and the guide rail 5 is fixed to the skeleton side by the latch pin 5e. In this state, the shutter curtain 1 is located slightly before the fully closed state, whereby a gap for air circulation is formed between the lower surface of the seat plate 4 and the floor of the skeleton. When the load based on the wind pressure is applied, the fully closed posture is set (FIG. 11B). Here, the operating arm 7 is provided with a stopper pin 7 to prevent the operating arm 7 in the free state from hanging down to the vertical state.
When the tip of the stopper pin 7c contacts the inner surface of the guide rail 5 in the left-right direction, the operating arm 7
Is set in such a manner that the front end (lower end) side can be held in an inclined posture positioned outward in the left-right direction.

On the other hand, a case where the shutter curtain 1 in the fully closed position is opened will be described. First, seat plate 4
The operation arm 7 held in the inclined position by the upward movement
The auxiliary wheel 7b abuts on a corner portion between the bottom plate portion 4a and the stopper piece 4e so that the operation arm 7 is in a movement-restricted state, whereby the guide rail 5 is supported by the seat plate 4 via the operation arm 7, In this state, the guide rail 5 is lifted. At this time, the bottom plate 4a is provided with an inclined piece 4f that is higher toward the inner side in the left-right direction. The force is set in such a manner that the force acts in a direction in which the base end changes to a lying posture in which the base end faces inward in the left-right direction with the movement. When the shutter curtain 1 is further wound, the support roller 6 is loosely fitted to the roller guide 4d, whereby the guide rail 5 is supported from the seat plate 4 by the operation arm 7 through the support roller 6. Thereafter, in this state, the shutter curtain 1 is set to the fully open position, and the guide rail 5 is set to change to the horizontal position.

An evacuation door 8 is arranged adjacent to a side of the fire shutter (right side in FIG. 1) located on one side of the large opening. The evacuation door 8 is pivotally supported at one side (hanging side) by a hinge 8a so as to be freely opened and closed by the frame. The evacuation door 8 is positioned along the side of the frame to open the opening, and the shutter curtain 1 It is set so that it can be transformed into a closed posture in which the opening at the position adjacent to the opening is closed. The evacuation door 8 is configured such that the self-closing device (not shown) is unlocked and the self-closing operation is performed in accordance with the abnormality detection by the abnormality detecting means for detecting a fire or the like.

The evacuation door 8 has a pair of front and rear plate surfaces 8.
A core material such as a heat insulating material is interposed between b and 8c, and a swing door type child door 9 is pivotally supported by a hinge 9a so as to be freely opened and closed. Evacuation door 8
The child door 9 can be opened and evacuated while the door is closed. Further, the evacuation door 8 abuts against a door stop stopper 8e provided above the frame in the closed position, and in this state, the rear guide piece 5c (the rear guide rail half) of the guide rail 5 in the hanging position. Part) and the skeleton, but the door end side end of the evacuation door 8 is closed in the front-rear close proximity to the left-right outer part of the rear guide piece 5c. At a position adjacent to the rear guide piece 5c of the guide rail 5 in the hanging posture and the evacuation door 8, the flow path of smoke and air is set to have a maze structure. A vertically long groove 8d is formed on the front plate surface 8b between the facing surface of the evacuation door 8 and the child door 9, and the groove 8d is closed by the present invention. A body 10 is provided. That is, the closing member 10
Is a penetrating guide 5a of the guide rail 5 in the hanging posture.
Is configured with a plate body dimensioned so as to block the door from the outside in the left-right direction, and is pivotally supported on the evacuation door 8 via a hinge 10a. Then, the storage position in which the plate surface of the closing member 10 is stored in the concave groove-shaped portion 8d with the plate surface being substantially flush with the evacuation door front plate surface 8b, and approximately 90 degrees forward, that is, the closing direction of the evacuation door 8 It is set so as to swing to the front guide piece 5b side, which is the lower side, and to change to a closing position for closing the through guide 5a. Further, the closing member 10 is urged toward the closing posture by urging means (not shown), and is engaged and held in the storage posture by a stopper member 11 provided on the evacuation door 8 side. . Then, as described above, a fire or the like occurs and the shutter curtain 1 and the evacuation door 8 are provided.
Is closed, but the closing member 10 is disengaged from the stopping member 11 based on the detection of the full closing of the shutter curtain 1, whereby the closing member 10 is transformed into a closing posture for closing the through guide 5 a. Is set. In this case, the engagement of the stop member 11 may be released based on the detection of the fully closed state of the evacuation door 8 instead of the detection of the fully closed state of the shutter curtain 1.

In the embodiment of the present invention configured as described above, when the shutter curtain 1 and the evacuation door 8 are in the open position, the guide rail 5 is stored on the ceiling side, so that there is no large obstacle. Opening can be secured. When an abnormality such as a fire occurs, the shutter curtain 1 and the evacuation door 8 are closed to create a fire prevention and smoke prevention area. In this case, the guide rail 5 causes the shutter curtain 1 to close. In this case, the shutter curtain 1 itself changes to the hanging posture while guiding the closing, so that the closing operation of the shutter curtain 1 can be started simultaneously with the evacuation door 8 in connection with the abnormality detection by the abnormality detecting means. Therefore, unlike the case where the conventional guide rail is provided on the evacuation door, it is not necessary to start the closing operation of the shutter curtain after the evacuation door has completed the closing operation and the guide rail is set at a predetermined position, The quick closing operation of the shutter curtain 1 can be performed, so that the anti-disaster property is excellent.

As described above, in the embodiment of the present invention, the shutter curtain 1 can be closed without waiting for the evacuation door 8 to be closed. The penetrating guide 5a for penetrating in the left-right direction is provided. In this state, even if the shutter curtain 1 is fully closed, smoke or the like leaks through the penetrating guide 5a, and the disaster prevention function is reduced. However, since the penetrating guide 5a is closed by the closing member 10 provided on the evacuation door 8, a reduction in the disaster prevention function can be prevented.

In addition, since the closing member 10 is configured so as to close when the shutter curtain 1 is fully closed,
It is possible to avoid the problem that the closing member 10 interferes with the guide rail 5 during the transformation to the hanging posture, and the closing member 10 can be configured as close to the guide rail 5 as possible, so that the closing performance of the penetration guide 5a is high. Can be something. Moreover, in this case, since the closing body 10 is transformed to the closing posture side after the lower end of the guide rail 5 is locked, the closing body 10 is rotated 90 degrees with respect to the evacuation door 8. It is also possible to make the closing body 10 in the closing posture contact the guide rail 5 in a resilient manner, assuming that the closing body 10 can be rotated by 90 degrees or more without being stopped, and is urged in this direction. There is an advantage that a higher closing function can be exhibited by such a configuration.

As described above, in the first embodiment, the shutter curtain 1 and the evacuation door 8 simultaneously start the closing operation in conjunction with the abnormality detection by the abnormality detecting means. The closing operation of the closing member 10 is started based on the detection of the fully closed state. For this reason, in this embodiment, a means for detecting the full closing of the shutter curtain 1 is required. In this embodiment, the locking means 5f provided at the end of the guide rail 5 is used by using the full closing detection. Locking operation control is also set together.

Next, a description will be given of a second embodiment in which the shutter curtain 1 is not required to be fully closed, with reference to FIGS. In these drawings, components common to the first embodiment (the same components) are denoted by the same reference numerals, are drawn, and the details are omitted. In this embodiment, the basic structure of the shutter curtain 1 and the basic structure of the opening / closing operation are substantially the same as those of the first embodiment. However, in this embodiment, the operating arm 12 is swingable on the guide rail 5. The setting is such that the support roller 13 is supported on the pin shaft 12a for bearing.
The auxiliary wheel 12b provided at the front end of the roller 2 runs on the same roller guide 14a formed on the seat plate 14. Then, the guide rail 5 is provided with a support roller 13, an operating arm 12, and an auxiliary wheel 12b in the same manner as in the first embodiment in accordance with the opening and closing operation of the shutter curtain 1.
And swings downward while being supported by the seat plate 14 via the. Incidentally, when the guide rail 5 is in the hanging position, the shutter curtain 1 is located slightly before the fully closed position, and a gap for air circulation is formed between the seat plate 14 and the floor surface. Has the same configuration as that of the first embodiment, but hereinafter the shutter curtain 1
When the seat plate 14 is separated from the auxiliary wheel 12b due to the continuation of the closing operation, the operating arm 12 of the present embodiment is set to be in a natural hanging state. When the shutter curtain 1 is opened, the inclined guide 14b provided on the seat plate 14 that moves upward contacts the auxiliary wheel 12b.
The auxiliary wheel 12b is guided toward the stopper side 14c of the seat plate 14, and the operating arm 12 is set to return to the inclined position in which the distal end on which the auxiliary wheel 12b is journaled is located laterally outward from the base end. In this state, the operating arm 12 is
The guide rail 5 is caused to swing upward by being gradually transformed into the lying posture by receiving the upward movement support from the seat plate 5.

At the tip (lower end) of the guide rail 5, a latch pin 15 having a small diameter at the lower end is provided so as to be able to protrude and retract, and a releasing means 15a is provided above the latch pin 15. . The release means 15a is configured so that the latch pin 15 is immersed by energizing the solenoid.
Is retracted (moved upward) to enter the release state, but otherwise, it is set to be in a non-excited state and the latch pin 15 can be lowered by its own weight. On the other hand, reference numeral 16 denotes an engaging member provided on the floor surface for engaging the latch pin 15, and the engaging member 16 faces the latch pin 15 in a state where the guide rail 5 is in the hanging posture. A hole (groove) 16a is provided. During the closing operation of the shutter curtain 1, when the guide rail 5 swings downward and approaches a hanging posture, the latch pin 15 that has descended by its own weight and protrudes downward is positioned at a position in front of the engagement hole 16a. The portion comes into contact with the upper surface of the engaging member 16 and is pushed up, and the guide rail 5 falls by its own weight and falls automatically into the engaging hole 16a in synchronization with the hanging posture. When the guide rail 5 is locked in this way, consideration is given that the solenoid is not required to be excited in correspondence with the detection of the shutter curtain 1 being fully closed.

The evacuation door 17 of the present embodiment has one side edge pivotally supported by a frame via a hinge 17a so as to be swingable, and has an open posture along the frame and a position adjacent to the closed shutter curtain 1. It is set to swing open and close to a closed posture. And the evacuation door 17 is a shutter curtain 1
The self-closing by the release operation of the lock device (not shown) in response to the start of the closing operation is the same as in the first embodiment. Here, the upper edge of the evacuation door 17 is set to abut on the door stop stopper 17b on the skeleton (ceiling) side in a closed posture, and the guide rail front guide piece 5b (front guide) in the hanging posture in the closed posture. Although it is configured to close between the rail half) and the frame, the front guide piece 5
A projecting piece (door stop) 17c is formed in the front half of b. When the door is closed, the door end side end of the evacuation door 17 is in contact with the projecting piece 17c and the laterally outer end face of the front guide piece 5b. It is closed in a positional relationship close to and facing the corner formed by
Thereby, the flow path of smoke or air is set to have a maze (determined) structure at a position adjacent to the front guide piece 5b of the guide rail 5 in the hanging posture and the evacuation door 17.

On the other hand, on the evacuation door 17, closing members 19 for closing the evacuation child door 18 and the penetrating guide 5a of the guide rail 5 from outside in the left-right direction are pivotally supported respectively. The closing member 19 is incorporated in a groove-like portion 17e formed in the rear door surface 17d of the evacuation door 17 in a laminated manner, and is provided via an unillustrated hinge (spring hinge) 19a with an armature. From the storage position in which it is pivotally supported on the door tip side and is stored in the concave groove-shaped portion 17e, the closing position of the evacuation door 17 swings to the upper side in the closing direction to close the through guide 5a. Numeral 19 is set so as to be constantly urged in the closing posture in which it swings more than 90 degrees toward the rear guide piece 5c. For this reason, the closing member 19 is set so that the distal end portion of the closing member 19 abuts on the rear guide piece 5c in a pressing manner, and is set to enhance the closing effect. When the abnormality detecting means detects an abnormality, the shutter curtain 1
A stop member 19b for holding the closing member 19 in the storage position in accordance with the simultaneous start of the closing operation of the
Is set to release operation.

In the present embodiment, the closing member 19 is transformed into the closing position almost simultaneously with the closing movement of the evacuation door 17, and the evacuation door 17 is in the closing position in this transformed state.
In this case, assuming that the guide rail 5 swinging downward interferes with the closing member 19, the closing member 19
On the side facing the storage position, that is, the spring hinge 19
A load is applied in the direction of being pushed back against a. As a result, the closing member 19 is in a closing position protruding from the door end side end of the evacuation door 17 beyond 90 degrees with respect to the evacuation door 17, and the closing member 19 and the rear guide piece 5c are fully closed.
In this configuration, the evacuation door 17 can be closed without any problem while the closing body 19 is in the closed position, but the closing operation is not impaired. Thereby, the transformation operation of the closing member 19 is performed by the evacuation door 17.
Without closing the shutter curtain 1 or fully closing the shutter curtain 1, and when the evacuation door 17 is located in the predetermined closing position, the closing member 19 also returns to the predetermined closing position. . As a result, the stopping member 19b of the closing member 19 is not necessarily required, and the evacuation door 17 is held in the open position in a state where the closing member 19 is in the retracted position against the urging force, thereby sandwiching the evacuation door 17 with the frame. In this way, it is possible to set to maintain the storage posture, and further simplification can be achieved. As described above, in the second embodiment, while the closing position of the closing member 19 swings by 90 degrees or more and has a high closing function, the posture change to the closing position is performed by the shutter curtain 1. Is not performed at the time of detecting the fully closed state of the shutter curtain 1 but at the same time as the start of the closing operation of the shutter curtain 1 and the engaging operation of the latch pin 15 can be a natural fall. Since it is not necessary to detect the full closing of the door, the structure can be simplified.

Further, the closing member is not limited to the one which is swingably provided on the evacuation door as in the first and second embodiments. The closing member 21 may be integrally formed so as to protrude therefrom, and such a structure includes a third embodiment shown in FIG. In this configuration, the evacuation door 20 is configured to close the front guide piece 5b of the guide rail 5 and the frame, so that the closing body 21 protrudes toward the upper side of the evacuation door 20 in the closing direction to form the through guide 5a. The evacuation door 20 is integrally formed with the rear door surface 20c so as to close. In this case, it is not necessary to adopt a configuration in which the closing member 21 swings via a hinge, and the shutter curtain 1
It is not necessary to detect the fully closed state of the evacuation door 20 or the fully closed state of the evacuation door 20.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a closed state of a shutter curtain and an evacuation door.

FIG. 2 is a schematic plan view of a shutter curtain and an evacuation door.

FIG. 3 is a view taken in the direction of arrows AA in FIG. 1;

FIG. 4 is a sectional view taken along line BB in FIG. 1;

FIG. 5 is a sectional view taken along line CC in FIG.

FIG. 6 is a plan sectional view of the evacuation door.

FIGS. 7A and 7B are a front view and a plan view of an evacuation door, respectively.

FIG. 8 is a partially cutaway side view of the lintel portion in the open position of the shutter curtain.

FIG. 9 is a side view showing the relationship between the seat plate and the guide rail during the operation of the shutter curtain.

FIG. 10 is an explanatory diagram showing a relationship between a seat plate and a guide rail in a closing operation process of the shutter curtain.

FIGS. 11A and 11B are explanatory diagrams each showing a relationship between a seat plate and a guide rail in a closing operation process of a shutter curtain.

FIG. 12 is a sectional view taken along line DD in FIG. 1;

FIG. 13 is a partially omitted front view of a guide rail in a closed position of a shutter curtain.

FIGS. 14A and 14B are a side sectional view and a front sectional view, respectively, showing a lock structure of a guide rail.

FIG. 15 is a schematic front view showing a closed state of a shutter curtain and an evacuation door according to the second embodiment.

FIG. 16 is a plan sectional view of an evacuation door according to the second embodiment.

FIG. 17 is a side view showing a lock structure of a guide rail according to the second embodiment.

18 is a sectional view taken along the line EE of FIG. 17;

FIG. 19 is a partially cutaway side view of the lintel portion of the shutter curtain according to the second embodiment in an open position.

FIG. 20 is a cross-sectional view of the guide rail portion in the process of opening and closing the shutter curtain.

FIGS. 21A, 21B, and 21C are explanatory views showing the relationship between a seat plate and a guide rail in a process of opening and closing a shutter curtain according to the second embodiment.

FIG. 22 is a plan sectional view of an evacuation door according to the third embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 shutter curtain 3 switch 4 seat plate 4 e stopper piece 5 guide rail 5 a penetrating guide 6 support roller 7 operating arm 7 b auxiliary wheel 8 evacuation door 9 child door 10 closing member 11 stopper member 12 operating arm 13 support roller 14 seat plate 15 latch pin 15a Release means 17 Evacuation door 18 Evacuation child door 19 Closure body

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kyoichi Kimura 2-1-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Sanwa Shutter Industry Co., Ltd.

Claims (3)

[Claims] An evacuation door is provided on a shutter curtain which is transformed between a closed position extended from a ceiling portion and an open position accommodated in the ceiling portion, and which is opened and closed at a position adjacent to the shutter curtain in a closed position. In parallel, the guide rail on the side of the evacuation door of the shutter curtain is pivotally supported at the upper end on the ceiling side, and a penetration guide for guiding the shutter curtain in a penetrating state is established at the bottom of the rail, An interfering member that interferes with the lowermost seat plate of the shutter curtain is provided at the lower end so as to change to a horizontal position and a hanging position in conjunction with the opening and closing operation of the shutter curtain. , Is a building shutter provided with a closing body for closing the penetrating guide of the guide rail in the hanging posture. 2. The architectural shutter according to claim 1, wherein the evacuation door and the shutter curtain are set to start a closing operation together upon receiving a detection signal from abnormality detection means such as a fire. 3. The evacuation door according to claim 1, wherein
An architectural shutter, which is pivotally supported on the skeleton side so as to be capable of opening and closing and swinging, and the closing body protrudes at least one of the upper side and the lower side in the closing direction of the evacuation door to close the through guide of the guide rail.