JP2003328666A - Architectural shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutter device constituted so as to make a guide rail movable and to be vertically movable according to the opening and closing motion of the shutter curtain and further make a seat plate pass through the guide rail without impairing the flame interruption performance. <P>SOLUTION: An incision 8k is formed only at the lower end where a seat plate 5 passes through in a penetration guide 8a formed between a pair of forward and rearward guide pieces 8b, 8c constituting the guide rail 8, and a cover member 18 covering the incision 8k openably/closably is installed. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of a building shutter provided for forming a fireproof or smokeproof area in an opening, a large room, an underground passageway, etc. of a building, a factory or the like. Belong to.

[0002]

2. Description of the Related Art Generally, it is necessary to set fire-prevention areas in openings such as buildings and factories, large rooms, etc. in order to deal with abnormalities such as a fire, to prevent burning and prevent the spread of damage. To be As such, it has been proposed to build a fireproof shutter for construction, and in a wide frontage, a plurality of shutter curtains may be installed side by side instead of a series. In this case, the center pillar (guide rail)
However, there is a problem that if this center pillar is fixed, it will be an obstacle during normal times (when the shutter curtain is open). Therefore, the guide rail is rotatably supported on the skeleton side, and is configured to swing up and down in a state of penetrating and guiding the shutter curtain when the shutter curtain is opened and closed.When the shutter curtain is closed, the guide rail stands upright. It is known that the pendant is erected so that it can be stored on the ceiling when it is opened. In this case, the guide rail oscillates in a state in which the hanging of the guide rail is restricted by the shutter curtain, and it is necessary to fix the lower end portion in the hanging posture of the guide rail in the closed state of the shutter curtain. For this reason, conventionally, a latch pin protruding downward from the lower end surface is provided at the lower part of the guide rail, and the latch pin on the side of the skeleton is changed in accordance with the fact that the latch pin is transformed into the hanging posture of the guide rail. The engagement is locked in the engagement hole formed in the recess.

[0003]

By the way, when the guide rail swings downward and stops, it is necessary to avoid stopping the swing before the vertical hanging posture. Therefore, the body of the guide rail must be prevented. When the shaft support position in the upper part is displaced to one side in the left-right direction (outside the guide rail), and when the guide rail swings downward and is stopped in the natural state, it stops in a posture that exceeds the vertical drooping posture ( It is preferable to set such that the straight line connecting the swinging support shaft of the guide rail and the center of gravity is stopped in a state in which the guide rail is oriented in the vertical direction, and fixedly supporting it when it is in the vertical hanging posture. However, the relationship between the latch pin and the engaging hole is that the latch pin is shaken from the engaging hole of the latch pin or the engaging hole of the latch pin due to a construction error or a machining error in the guide rail, etc. It is necessary to consider the operation accuracy for engaging with the latch pin. Therefore, the latch pin is reliably caught by forming the engaging hole as a long hole in the left-right direction. Therefore, when the guide rail is fixed in the drooping posture, the vertical posture may be exceeded. When this was examined for the case where multiple shutter curtains were installed in a wide opening, when the adjacent guide rails, which would be the center pillars, were unable to oscillate at the same timing because the timing of the rocking speeds did not match. When the dynamic moment is large, it is possible that one of the guide rails will swing beyond the vertical posture and become locked. In that case, a gap will be created between adjacent guide rails, and fire protection performance will increase. There is a problem such as
Here, there is a problem to be solved by the present invention.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances in order to solve these problems, and a shutter curtain for closing an opening and an upper end are provided. It is rotatably supported by the body and swings up and down while penetrating and guiding the shutter curtain as the shutter curtain opens and closes, swinging from a storage posture that is stored on the ceiling side to a hanging posture that hangs down to the opening. In the architectural shutter provided with a movable guide rail, the guide rail is formed with a penetrating guide through which the curtain surface of the shutter curtain penetrates, and at the tip end portion of the guide rail, A notch portion is formed for the seat plate to penetrate. As a result, the seat plate portion of the shutter curtain can be guided through the lower end portion of the guide rail. In this, the pair of front and rear guide pieces facing each other with the penetrating guide of the guide rail according to the present invention may be provided with a cover member that closes the notch so as to be openable and closable. By doing so, the notch can be closed with the cover material,
It is possible to prevent deterioration of smoke shielding performance.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to FIG.
~ It demonstrates based on the drawing shown in FIG. In the drawings, reference numeral 1 denotes a shutter curtain of fireproof shutters arranged in parallel in a large opening.
Is a bracket 2 fixed to the ceiling side and having a generally U-shape in side view.
The shutter curtain 1 is wound around and unwound by the winding shaft 3 which is supported on the shutter curtain 1 as the winding shaft 3 rotates in the normal and reverse directions based on the forward and reverse drive of the switch 4 with a brake. Then, it is set so as to be transformed into a closed posture in which the opening is closed and an open posture in which the opening is stored on the ceiling side. Incidentally, these shutter curtains 1 are opened and closed based on the operation of an operation switch (not shown). However, when a fire or the like occurs in the open position of the shutter curtain 1, the brake is released due to the abnormality detection by the abnormality detection means. The shutter curtain 1 is set to close by its own weight by the action of a governor installed inside the switch 4. 3a
Is an intermediate drum, and the intermediate drum 3a is set to guide the movement of the shutter curtain 1 between the winding shaft 3 and the magsa. On the other hand, 5 is a seat plate at the bottom end of the shutter curtain 1, and a pair of roller guides 5a are formed on the seat plate 5 in the front and rear direction. It is set so that and are fitted in a retaining shape and roll. A cutout portion 5b is formed at the left and right ends of the roller guide 5a, and the support roller 6 is set to be able to move in and out through the cutout portion 5b. Further, stopper portions 5c are formed upright on the outside of the cutout portion 5b, that is, on the left and right edge portions of the seat plate 5, so that the auxiliary wheel 7 is prevented from moving further leftward and rightward. It is set. Further, the bottom surface portion 5 of the roller guide 5a reaching the stopper portion 5c
An inclined guide 5e that is inclined in a mountain shape, which will be described later, is provided at d.

Reference numeral 8 is a guide rail for penetrating and guiding the shutter curtain 1, and these guide rails 8 are composed of a pair of front and rear guide pieces 8b, 8c facing each other with a gap (a penetrating guide described later) 8a. However, the base end portions (upper end portions) of the guide pieces 8b and 8c are connected by the support shaft 8d. The guide rail 8 has the support shaft 8d.
Is pivotally supported by the bracket 2 so that the bracket can be housed on the ceiling side, and the tip (lower end)
It is constructed so that it can swing and transform into a drooping posture in which it hangs naturally. Here, each guide piece 8b by the support shaft 8d,
8c is supported on the bracket 2 by each guide piece 8b, 8c.
The guide pieces 8b and 8c swing more positively, which means that the guide pieces 8b and 8c swing more actively.
In the naturally suspended state, it is set so as to go beyond the upright (vertical) drooping posture.

Further, both guide pieces 8 of the guide rail 8
A support roller 6 running on the seat plate roller guide 5a is rotatably supported by pins 6a at the tips of b and 8c.
Further, the base ends of the operating arms 9 are swingably supported, and the auxiliary wheels 7 are pivotally supported by the distal ends of these operating arms 9 via pins 7a. In addition, 8e is a connecting plate, and front and rear guide pieces 8b,
The guide rail 8 is formed by connecting the upper and lower end portions of both guide pieces 8b and 8c to each other so that the guide rail 8 swings and transforms with respect to the body. It is considered. Further, 8f is a latch pin which is provided so as to be retractable from the tip end (lower end) of the guide rail 8 and is accompanied by the guide rail 8 being transformed into a drooping posture, that is, the shutter curtain 1 being almost fully closed. Engagement receiving portion 10 that is placed on the floor surface by dropping by its own weight and projecting
The lower end portion of the guide rail 8 is locked by the engagement with the recessed hole 10a formed in the above. The engagement receiving portion 10 of the present embodiment is larger than the outer diameter of the latch pin 8f. It is set to have one long hole-shaped concave hole 10a formed in the left-right direction. Incidentally, the latch pin 8f is provided with a releasing means 8g constituted by using a solenoid, and when the releasing means 8g is excited in association with the opening operation of the shutter curtain 1, the latch pin 8f is retracted and unlocked. Is set to be

In the housed state of the shutter curtain 1, the guide rail 8 is regulated downward so that the support roller 6 is fitted and supported by the roller guide 5a of the seat plate 5 located on the ceiling side. By guide rail 8
Has a horizontal posture and is set to be stored on the ceiling. At this time, the operating arm 9 is in a horizontal posture in which the auxiliary wheel 7 is fitted in and supported by the seat plate roller guide 5a, and the tip end portion is positioned laterally outward and the base end portion is positioned laterally inward. When the shutter curtain 1 is unwound from this state, the guide rail 8 gradually moves toward the drooping posture side while the support roller 6 and the auxiliary wheel 7 roll the roller guide 5a outward in the left-right direction. Although the shutter curtain 1 swings downward, at this time, the gap between the guide pieces 8b and 8c serves as a penetrating guide 8a so that the shutter curtain 1 is guided so as to penetrate therethrough in the left-right direction. When the shutter curtain 1 approaches the fully closed position, the support roller 6
Reaches the notches 5b at the left and right ends of the roller guide 5a and comes off from the roller guide 5a, so that it becomes free from the seat plate 5, but with this timing, the auxiliary wheel 7 is positioned at the end position of the seat plate 5. It is set to reach the stopper portion 5c. At this time, the auxiliary wheel 7 gets over the guide piece 5e formed on the bottom surface 5d of the seat plate and reaches the stopper portion 5c. In this state, the operating arm 9 is in an inclined posture in which the auxiliary wheel 7 side is positioned higher by the guide piece 5e. However, the auxiliary wheel 7 is set to be prevented from coming off by the upper side of the stopper portion 5c (FIG. 6 (X)). After that, the auxiliary wheels 7 are restricted from moving outward in the left-right direction, whereby the guide rails 8 are supported by the seat plate 5 via the operating arms 9,
If the shutter curtain 1 is closed further in this state,
The operating arm 9 gradually changes to a standing posture, while the guide rail 8 is set to swing downward. When the guide rail 8 swings until it is in a substantially vertical hanging posture, the latch pin 8f engages with the recessed hole 10a of the engagement receiving portion 10 and is locked to the body side. At this time, the shutter curtain 1 It is located at a position slightly before the fully closed state, so that a gap for air circulation is formed between the seat plate 5 and the floor surface (FIG. 6).
(Y)). Further, since the shutter curtain 1 continues to be closed after the guide rail 8 is locked in the drooping posture, the auxiliary wheel 7 is attached to the seat plate stopper portion 5c.
, The operating arm 9 is in a natural hanging state, and the shutter curtain 1 is in a fully closed position (see FIG. 6).
(Z)).

On the other hand, when the shutter curtain 1 in the fully closed position is opened, when the releasing means 8g is excited to unlock the latch pin 8f and then the shutter curtain 1 is opened, the seat plate 5 is moved upward. Accompanying seat bottom part 5
d comes into contact with the auxiliary wheel 7, but at this time, the auxiliary wheel 7 faces the guide surface of the inclined guide 5e,
The auxiliary wheel 7 is guided to the stopper piece 5c side, whereby the actuating arm 9 is positioned on the guide rail 8 in the hanging position so that the tip end side on which the auxiliary wheel 7 is supported is laterally outward with respect to the base end side. It becomes a tilted posture. And thereafter, the auxiliary wheel 7
Is restricted by the stopper piece 5c to move outward in the left-right direction, the guide rail 8 is supported by the seat plate 5 via the operating arm 9, and the upper power of the seat plate 5 is higher than that of the operating arm 9. The guide rail 8 is set so that the base end side acts in a direction in which the base end side is transformed to a lying posture inward in the left-right direction and the guide rail 8 is swung upward. When the shutter curtain 1 is further wound from this state, the support roller 6 is fitted into the roller guide 5a from the cutout portion 5b, whereby the guide rail 8 passes through the support roller 6 from the state where the operation arm 9 is interposed. Received support from the seat plate 5 in the state,
After that, in this state, the shutter curtain 1 is set to the open posture, and the guide rail 8 is set to be transformed to the horizontal posture.

Reference numeral 11 is a regulating means embodying the present invention, and the regulating means 11 is provided between each of the guide rails 8 for guiding the left and right side portions of the shutter curtain 1 and the ceiling side. There is a regulation means 11
Reinforcing sides 12a are formed in a bent shape at both end portions in the longitudinal direction of the link rod 12 constituting the. A stick-shaped connecting piece 13 is integrally fixed to the base end of each link rod 12, and the traveling roller 14 is rotatably supported by the base end of the connecting piece 13 via a pin 14a. . On the other hand, a ceiling rail 15 is laid long in the left-right direction above the magsa portion of the body ceiling facing the winding drum 3, and the ceiling rail 1
5, the traveling roller 14 is fitted in a retaining shape so that the traveling roller 14 travels on the ceiling rail 15 in the left-right direction. On the other hand, front and rear guide pieces 8b and 8c of each guide rail 8 are integrally formed with an inner side surface portion 8i formed with a guide surface 8h so as to form a narrow penetrating guide 8a for guiding the shutter curtain 1. Inner side surface portion 8 of the guide piece 8b
An L-shaped attachment side 16 is fixed to i. A connecting piece 13 fixed to the tip of each of the link rods 12 is swingably connected to a projecting piece 16a formed to project inward in the left-right direction of the mounting side 16 by means of a pin 13a. The link rod 12 is set so as to connect between the ceiling side and the guide rail 8.

Then, each link rod 12 has a guide rail 8
In the stored posture, the traveling rollers 14 are in a lying posture (lateral posture) positioned on the inner side in the left-right direction, and in this state, the traveling rollers 14 of the left and right link rods 12 are close to each other. From this state, when the guide rail 8 swings downward due to the closing operation of the shutter curtain 1, the tip of the link rod 12 is pulled by the guide rail 8 that swings downward, whereby the link rod 1 is pulled.
In No. 2, the running roller 14 runs upright (inclined) and the ceiling rail 15 runs outward in the left-right direction. Then, when the guide rail 8 reaches a drooping posture which is just perpendicular to the floor surface, the traveling roller 14 is further outward in the left-right direction by the stopper piece 17 which is fixedly attached to the ceiling rail 15. The movement of the guide rail 8 is restricted so that the guide rail 8 is restricted from swinging beyond the drooping posture.

Further, the guide rail 8 of the present embodiment has the following two considerations in order to improve the fire prevention function when the shutter curtain 1 is fully closed. The relationship between 1 and the guide rail 8 will be described. First, the seat plate 5 of the guide rail 8
In the case where the support from the above is via the support roller 6 as described above, only the curtain surface of the shutter curtain 1 penetrates the penetrating guide 8a of the guide rail 8, but the actuating arm 9 is interposed. In this case, the seat plate 5 penetrates the penetrating guide 8a of the guide rail 8. Therefore, a cutout portion for the seat plate 5 to penetrate is formed in the tip end portion of the guide rail 8 through which the seat plate 5 penetrates, that is, in the inner side surface portion 8i in the range from the bearing portion of the support roller 6 to the rail lower end portion. 8k will be formed respectively. For this reason, if it is left as it is, there is a possibility that a gap is opened between the cutout portion 8k and the curtain surface when the shutter curtain 1 is fully closed, and the performance is impaired. Therefore, as a first consideration, each of the guide pieces 8b and 8c is provided with an openable / closable cover member 18. That is, this cover material 1
8, the outer edges in the longitudinal direction are the guide pieces 8b, 8 respectively.
The inner side surface part 8i is attached to the c via a hinge 18a with a spring.
Is pivotally supported on the cover member 1 and
Reference numeral 8 denotes a side that closes the notch 8k without being interfered with by the shutter curtain 1 when only the curtain surface penetrates (that is, when the seat plate 5 does not penetrate the guide rail 8). Is urged towards. On the other hand, when the seat plate 5 penetrates the guide rail 8,
Since the cover material 18 interferes with the seat plate 5 and opens against the biasing force, when the shutter curtain 1 is now closed, the cover material 18 is It is opened by receiving the force pushed from below by 5
When the shutter curtain 1 is in the fully closed position and the guide rails 8 are in the drooping position, the interference by the seat plate 5 disappears and the cover material 18 returns to the closed position. In the fully closed position, the shutter curtain 1 and each guide piece 8b, It avoids opening a gap with 8c. On the other hand, when the shutter curtain 1 is opened from the fully closed position, the seat plate 5 is slidably contacted with the inclined guide 18b which is provided at the lower end portion of each cover member 18 and which is inward in the front-rear direction. Due to
The cover member 18 is set so as to be pushed in the opening direction so that the cover member 18 does not hinder the upward movement of the seat plate 5 during the opening operation.

On the other hand, the second consideration is in the bracket 2 portion above the body. That is, as described above, the bracket 2 has a substantially U-shape when viewed from the side, and the guide rail 8 is supported on the lower portion thereof. Therefore, when the guide rail 8 is in the hanging posture, it is necessary to open a gap S above the bracket 2 corresponding to the front-rear width of the guide rail 8. And, in the bracket 2 of the present embodiment,
A closing panel 19 for closing the gap S so as to be opened and closed is provided. The closing panel 19 is arranged in a state of extending upward from a position facing the upper end of each inner side surface portion 8i of the guide rail 8 in the hanging posture, and the upper portion of the closing panel 19 is located above the bracket 2. It is pivotally supported by a hinge 19a with a spring so as to be vertically swingable, whereby the closing panel 19 receives a biasing force and presses against the inner side surface portion 8i of the guide rail 8. And the closing panel 1
9 swings following the tilting and swinging of the guide rail 8, and in the storage posture of the guide rail 8, the guide rail 8 is pushed up by the inner side surface portion 8i against the biasing force, and the guide rail 8 is in the drooping posture. Is designed to close the gap S between the open brackets 2 having a substantially U-shape, so that the swing deformation of the guide rail 8 is not impaired. Reference numeral 20 denotes a panel body having one end hinged to the magsa portion via a support shaft 20a. The panel body 19 is in a state in which the shutter curtain 1 is fully opened and the guide rail 8 is in a retracted posture. It serves as a member for closing the magsa portion, and is set so as to function as a smoke-proof panel material by being oscillated by the downward swing of the guide rail 8 when the shutter curtain 1 is closed.

In the embodiment of the present invention configured as described above, the shutter curtain 1 starts the closing operation by operating the operation switch (not shown).
With this one, with the closing operation of the shutter curtain 1,
The guide rail 8 stored on the ceiling side swings downward. In this case, the base end of the guide rail 8 is swingably connected to the link rod 12 running on the ceiling rail 15, and therefore, the guide rail 8 swings downward while receiving the support on the ceiling side. Then, the link rod 12 restricts the further movement of the link rod 12 by the guide roller 8 being in a hanging posture and the traveling roller 14 on the base end side contacting the stopper piece 17 of the ceiling rail 15. Therefore, the guide rail 8 that displaces the shaft support position and tries to swing beyond the drooping posture is subject to swing regulation while being regulated to the ceiling side via the link rod 12. The swing stop is made just when the robot is in the drooping posture. As a result, the latch pin 8f for fixing the guide rail 8
Even if the hole diameter of the recessed hole 10a of the engagement receiving portion 10 that engages with each other is larger than the outer diameter of the latch pin 8f, adjacent guide rails 8 interfere with each other or a gap is formed between them. Such problems are avoided, and the fire protection performance is improved.

Further, as the shutter curtain 1 is opened and closed, the guide rail 8 housed on the ceiling side is vertically swung. At that time, the curtain surface of the shutter curtain 1 is formed on the guide rail 8. Penetration guide 8
penetrate a. In this case, since the operating arm 9 is provided on the guide rail 8, the penetrating guide 8a is attached to the seat plate 5
However, the through guide 8a of the guide rail 8 has a notch 8k formed only in the tip portion, that is, in the range of the inner side surface portion 8i in the range from the bearing portion of the support roller 6 to the rail lower end portion. Therefore, the seat plate 5 can be penetrated between the guide rails 8 without impairing the smoke shielding performance. Moreover, when the guardrail 8 is in the hanging posture, a large gap is formed between the cutout portion 8k and the curtain surface, but since the gap is automatically closed by the cover material 18, it is blocked. It is possible to prevent problems such as a decrease in smoke performance.

Incidentally, the present invention is not limited to the above-mentioned embodiment, of course, a traveling rail for guiding and moving one end of the link rod is provided on the guide rail side, and the other end of the link rod is provided on the ceiling side. It can also be implemented as a structure opposite to that of the first embodiment in which the shaft is supported. Further, the restricting means can be provided even in the case where a plurality of shutter curtains are connected in series, but in this case, for example, as shown in FIG. 11, a pair of left and right shutter curtains A and B can be used. . In this device, the closing ratio is changed by changing the gear ratio of the opening / closing device 4 that drives the left and right shutter curtains A and B, and the left shutter curtain A is closed after closing the right shutter curtain B. There is. With this, the right shutter curtain B is fully closed while ensuring the flow path of the wind generated at the left shutter curtain A side at the time of a fire or the like, and the guide rail 8 of the right shutter curtain B is set in the vertical posture. If the guide rail 8 of the left shutter curtain A is configured to be received and supported by the guide rail 8 fixedly locked in the vertical posture after the lock is securely fixed, the guide rail 8 becomes the regulating means 12. The guide rail 8 of the left shutter curtain A does not necessarily need to be provided with a restricting means in this case.

[Brief description of drawings]

FIG. 1 is a schematic front view of a building shutter.

FIG. 2 is a partially omitted side view of a building shutter.

FIG. 3 is an enlarged rear view of the main part.

FIG. 4 is a partially cutaway side view showing a fully opened state of the shutter curtain.

FIG. 5 is a cross-sectional view of the guide rail portion in the opening / closing operation process of the shutter curtain.

6 (X), (Y), and (Z) are explanatory views showing the relationship between the seat plate and the guide rail in the opening / closing operation of the shutter curtain.

FIG. 7 is a side view of a guide rail tip portion.

8 is a cross-sectional view taken along the line AA of FIG.

FIG. 9 is a side view showing a guide rail fixing structure.

10 is a sectional view taken along line BB of FIG.

FIG. 11 is a schematic front view showing a second embodiment.

[Explanation of symbols]

1 shutter curtain 2 bracket 5 seat plate 6 Support roller 7 auxiliary wheels 8 guide rails 9 Working arm 11 Regulatory means 12 link rod 12a Reinforcing side 13 Connection piece 14 Traveling roller 15 Ceiling rail 17 Stopper piece 18 Cover material 19 closed panels

Claims (2)

[Claims] 1. A shutter curtain that closes an opening, and an upper end thereof is rotatably supported by a skeleton. When the shutter curtain is opened and closed, the shutter curtain is vertically guided while penetrating the shutter curtain to be housed on the ceiling side. In the architectural shutter comprising a movable guide rail that swings and transforms from the stored posture to the hanging posture that hangs down to the opening,
It is assumed that the guide rail is formed with a penetrating guide through which the curtain surface of the shutter curtain penetrates, and a notch portion for penetrating the seat plate at the lowermost end of the shutter curtain is formed at the tip end portion of the guide rail. Architectural shutter. 2. The architectural shutter according to claim 1, wherein a pair of front and rear guide pieces facing each other with the penetrating guide of the guide rail provided with a cover member that opens and closes the notch portion.