JP3088673B2 - Fire protection screen device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire protection compartment for preventing the spread of fire and the spread of smoke by partitioning the interior space of a building by hanging a screen curtain rich in incombustibility or fire resistance from the ceiling side. Screen device, especially,
The present invention relates to a screen device for a fireproof compartment that allows a person to easily pass through a screen curtain through a slit formed upward from a lower edge of the screen curtain.

[0002]

2. Description of the Related Art Conventionally, fire prevention equipment such as fire barriers and fire shutters for shutting off flames and smoke, fire doors for people to evacuate, etc. have been conventionally provided in a building in case of fire. Evacuation passages are being systematically deployed. Recently, as a new fire protection facility that replaces these fire barriers and fire shutters, a screen device for a fire compartment that uses a non-combustible or fire-resistant screen curtain to block fire and smoke has attracted attention.

FIG. 1 shows an example of a conventional screen device for a fire protection compartment. This screen device for fire prevention compartments is installed by winding out a screen curtain 2 having excellent incombustibility or fire resistance and having flexibility from a winding shaft 4 and hanging down from a ceiling side. Bar-shaped weights 6a, 6b, 8 are attached to the lower edge of the screen curtain 2 so as to prevent the screen curtain 2 from swinging and maintain its posture in a stable state. As a result, the screen unit for a fire prevention compartment partitions the indoor space of the building and blocks fire and smoke.

On the other hand, this screen device for a fireproof compartment has a slit section formed by dividing the screen curtain 2 upward and downward from the lower edge of the screen curtain 2 so that a person can easily pass through the screen curtain 2. 10 are formed. The slit portion 10 forms a triangular oblique side 16 on the right side of the slit portion 10 of the screen curtain 2.
The door portion 14 is formed so as to be freely bent along. The weight 8 at the lower edge of the door portion 14 is a door weight,
The weights 6a and 6b at the lower edge of the screen curtain 2 excluding the door portion 14 are a screen left weight and a screen right weight. The evacuee presses the surface of the door 14 and, as shown in FIG.
Is bent toward the back side of the screen curtain 2, so that a large gap is formed in the slit portion 10, and the screen curtain 2 can pass through the gap.

[0005] Here, the door weight 8 is slightly lifted up by the pressing of the door portion 14, but when the evacuee passes and the surface of the door portion 14 is released from the pressing, the weight is raised. Since it returns to the original position by its own weight, the slit portion 10 is automatically closed again.

Further, a magnetic attraction structure made of a magnet is provided at the joint 7 between the door weight 8 and the screen left weight 6a so that the door weight 8 is magnetically attracted to the screen left weight 6a. Thus, the closed state of the slit portion 10 is maintained.

[0007]

However, the above-described screen device for a fire compartment has the following disadvantages. That is, since the door weight 8 of the screen device for fire prevention compartment is attached to the flexible screen curtain 2 in a state of hanging from the lower edge of the door portion 14, the surface of the door portion 14 is pressed to bend. When the door weight 14 is released from the pressing and the door weight 8 is returned to the original position and the door weight 8 is returned to the original position, the door weight 8 is inadvertently moved to the screen surface of the screen curtain 2 erroneously. In some cases, they were scratched.

Further, both the screen left weight 6a and the door weight 8 are magnetically attracted by a magnet or the like. When a shearing force was applied to separate the two, the displacement easily occurred with a small force. For this reason, the screen curtain 2 is moved, for example, to the winding shaft 4.
In some cases, such as winding misalignment may occur when winding in the above manner.

The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent a screen surface of a screen curtain from being scratched by a door weight, and to provide a screen weight and a door weight. It is an object of the present invention to provide a screen device for a fire-prevention section, which can prevent a positional deviation between the two when they are magnetically attracted to each other.

[0010]

According to the present invention, there is provided a screen device for a fire protection compartment according to the present invention.
A non-combustible or fire-resistant flexible screen curtain that hangs down from the ceiling and partitions the interior space of the building, and is formed upwardly from the lower edge of the screen curtain, and divides the screen curtain into right and left parts. With the exception of a slit portion that forms a triangular door portion that can be bent along the hypotenuse between the lower edge of the screen curtain, a door weight attached to the lower edge of the door portion, and the door portion. A screen weight attached to a lower edge of the screen curtain; and a magnetic suction structure provided between the door weight and the screen weight, wherein the screen weight sucks the door weight. A screen device for a fire prevention compartment, wherein the door weight is rotatably connected to the screen weight along an oblique side of the triangular door formed on the screen curtain. A pivot member that is provided between the said door for weight and the screen for weight, characterized in that a fitting structure for restricting the relative movement of said door portion along the screen curtain surface.

In this fire prevention screen device, in the event of a fire, a non-combustible or fire-resistant screen curtain is set down from the ceiling side to partition the internal space of the building to block fire and smoke. On the other hand, the refugee presses the surface of the door portion, which is formed in a triangular shape between the slit formed upward from the lower edge of the screen curtain and the lower edge of the screen curtain and can be bent along the oblique side thereof. By pushing this to the back side of the screen curtain, a large gap is formed in the slit portion, and the screen curtain can pass through this gap. When the evacuee passes and the surface of the door is released from the pressing, the weight for the door slightly lifted upward by the pressing of the door moves back to its original position by its own weight, and the slit re-opens. Closed.

The door weight is pushed out to the back of the screen curtain together with the door when the door is pressed, and returns to the original position when the pressure is released. Since it is rotatably connected to the screen weight along the oblique side of the door, the direction in which it is pushed out to the back side of the screen curtain or the direction in which it returns is specified as the direction in which it rotates along the oblique side of the door. Is done. In this way, the door weight does not move carelessly, and it is possible to prevent the screen curtain from being scratched, and to open and close the door while keeping the curtain surface state of the door section in a tensioned state, for example. The door can be opened and closed smoothly. Further, since the door weight can be reliably returned to the original position, the slit portion can be more reliably closed.

Further, in addition to the magnetic attraction structure, a fitting structure for regulating the relative movement of the door portion along the screen curtain surface is provided between the door weight and the screen weight, so that both sides are provided therebetween. Can be sufficiently opposed to the shearing force for separating the two, and it is possible to prevent the displacement between the two in a state where they are magnetically attracted to each other. Therefore, at the time of winding the screen curtain or the like, it is possible to prevent problems such as misalignment, and to perform the operation smoothly and smoothly.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a screen device for a fire protection compartment according to the present invention will be described below with reference to the accompanying drawings. Note that the same components as those in the related art are denoted by the same reference numerals.

FIG. 1 shows an embodiment of a screen device for a fire protection compartment according to the present invention. The screen device for a fire prevention section mainly includes a screen curtain 2, a winding shaft 4 provided above the screen curtain 2 for feeding and winding the screen curtain 2, and attached to a lower edge of the screen curtain 2. Rod-shaped screen weight 6
a, 6b and a door weight 8. And
The screen curtain 2 has a slit 10 formed upward from the center of the lower edge, and the screen curtain 2 is divided into right and left. The left and right sides of the slit 10 of the screen curtain 2 divided into right and left are the slits 1
Left and right screen curtains 2 so that there is no gap at 0
Overlap each other by a predetermined width.

Here, the screen curtain 2 is made of a nonflammable or fire-resistant cloth material such as a woven glass fiber cloth or silica cloth, and is hung down from the ceiling side to reduce the indoor space of the building. It has a function of blocking fire or smoke when partitioned.

On the other hand, the take-up shaft 4 is disposed, for example, along the horizontal direction on the ceiling side inside the building. In the event of a fire, the screen curtain 2 is extended and hangs down from the ceiling side, and the screen curtain 2 becomes unnecessary. When it is rolled up, it is used to store it on the ceiling side. The feeding or winding of the screen curtain 2 by the winding shaft 4 can be automatically performed by connecting the winding shaft 4 to, for example, a winding driving device.

The screen weights 6a and 6b and the door weight 8 are both horizontally attached to the lower edge of the screen curtain 2. Screen weight 6
Reference numerals a and 6b are disposed on the left and right sides of the door weight 8 therebetween, and are disposed on the left side of the screen weight 6a disposed on the left side of the door weight 8 and on the right side of the door weight 8. Screen right weight 6b.
The screen right and left weights 6a and 6b and the door weight 8 are arranged in a straight line. And these right and left weights 6a, 6b for the screen are used.
In addition, even if a pressure difference occurs between the front and back sides of the screen curtain 2 or a considerable wind pressure is applied to the screen surface, the weight 8 for the door can be used as the weight of the screen curtain 2.
Of the screen curtain 2 is kept stable.

On the right side of the slit portion 10 of the screen curtain 2, a triangular door portion 14 is formed between the slit portion 10 and the lower edge of the screen curtain 2. The door portion 14 is formed to be freely bendable along the oblique side 16 of the triangle extending straight from the upper end portion of the slit portion 10 along the diagonally downward right direction. Also,
The bar-shaped door weight 8 is attached to the lower edge of the door portion 14 along the lateral direction. When the surface of the door portion 14 is pressed by a hand or a body, as shown in FIG. 2, the door portion 14 is bent along the oblique side 16 and pushed out to the back side of the screen curtain 2 together with the door weight 8 attached to the lower edge. As a result, a large gap is formed in the slit portion 10. As a result, the refugee can easily go out through the gap to the back side of the screen curtain 2 and pass therethrough, and can evacuate to a safe place quickly and promptly.

On the other hand, since the door weight 8 is lifted slightly upward by the pressing of the surface of the door portion 14, when the evacuee passes and the surface of the door portion 14 is released from the pressing, the door weight 8 is lifted. The slit portion 10 moves to return to the original position by its own weight, and the slit portion 10 is closed again.

Here, as shown in FIGS. 3 (a) and 3 (b), the door weight 8 is hinged to the left end of the screen right weight 6b via a hinge 18 as a pivoting member. Thus, it is connected rotatably along the oblique side 16 of the door portion 14. That is, the hinges 18 are joined so that the joints 18a thereof correspond to the flat portions 9 and 11 respectively formed by cutting out the right ends of the door weights 8 and the left ends of the screen right weights 6b. ing. The shaft 18 b of the hinge 18 is disposed along an extension of the hypotenuse 16 of the door 14, and the hinge 18
The whole is provided diagonally by connecting the right end of the door weight 8 and the left end of the screen right weight 6b.
Thus, the door weight 8 rotates along the oblique side 16 of the door portion 14 with respect to the screen right weight 6b.

For this reason, when the door weight 8 is pushed out to the back side of the screen curtain 2 or returns to the original position, the moving direction is the direction of rotation along the oblique side 16 of the door portion 14. Is specified. As a result, the door weight 8 does not move carelessly and the screen curtain 2 does not move.
Can be prevented, and the door 14 can be opened and closed while the state of the curtain surface of the door 14 is kept, for example, in a tensioned state, so that the opening and closing of the door 14 is smooth. Further, since the door weight 8 can be reliably returned to the original position, the slit portion 10 can be reliably closed.

In addition to the hinge 18, the pivoting member may be any member that connects the door weight 8 to the screen right weight 6b so as to be rotatable along the oblique side 16 of the door portion 14. Alternatively, any other form may be used.

Further, at the left end of the door weight 8 and at the right end of the screen left weight 6a, a front half portion 8a and a back half portion 6c are formed as shown in FIG. When the door 14 is closed, the front half portion 8a and the rear half portion 6c are combined with each other. A fitting projection 22 with a magnet is provided on the front half portion 8a of the door weight 8, and
A fitting concave portion 24 and a metal portion 26 are provided in the rear half portion 6c of the screen left weight 6a as a magnetic attraction structure or a fitting structure. The fitting protrusion 22 with magnet of the door weight 8 has a flange portion 22a at its root.
And is entirely made of metal, and the whole is magnetized by a magnet (not shown) attached in close contact with the back side. On the other hand, the fitting concave portion 24 of the screen left weight 6a has a depth dimension and an inner diameter dimension slightly larger than its length dimension and outer diameter dimension corresponding to the magnet fitting projection 22. The fitting projection 22 with the magnet is inserted into the inside with some allowance. The metal portion 26 of the screen left weight 6a is provided around the outside of the fitting recess 24 corresponding to the flange portion 22a of the fitting protrusion 22 with magnet, and is formed in an annular shape. .

When the door 14 is closed, the fitting projection 22 with magnet on the door weight 8 side is inserted into the fitting recess 24 on the screen left weight 6a side, and both are fitted to each other. . Further, the flange portion 22a of the fitting projection 22 with magnet is magnetically attracted to the metal portion 26 on the side of the screen left weight 6a in close or close contact therewith.

Thus, when the door portion 14 returns to the original position, the closed state is maintained by the magnetic force, and the gap formed in the slit portion 10 can be reliably closed. Further, since the fitting protrusion 22 with magnet on the door weight 8 side is inserted into the fitting recess 24 on the screen left weight 6a side, the screen between both the door weight 8 and the screen left weight 6a is formed. A relative displacement of the curtain 2 along the curtain surface is prevented. Therefore, when the screen curtain 2 is wound, for example, a problem such as misalignment can be prevented, and the operation can be performed smoothly and smoothly.

By the way, in the above embodiment, the door 14
Has been described only on the right side of the slit section 10, but may be provided on the left side of the slit section 10 or on both the left and right sides of the slit section 10.
As a magnetic attraction structure, a magnet is provided on the door weight 8 side, and a metal part 2 is provided on the screen left weight 6a side.
6, the magnet may be provided on the screen left weight 6a side, and the metal portion 26 may be provided on the screen left weight 6a side. As the fitting structure, a fitting protrusion 22 is provided on the door weight 8 side, and a fitting recess 24 is provided on the screen left weight 6a side, but the fitting protrusion is provided on the screen left weight 6a side. 22, and a fitting recess 24 may be provided on the door weight 8 side.

[0028]

As described above in the embodiment of the present invention, according to the screen device for a fire prevention compartment according to the present invention,
In the event of an emergency such as a fire, a flexible screen curtain that hangs down from the ceiling to partition the internal space of the building and block fire and smoke is divided upward and downward from the lower edge of the screen curtain. A slit portion is formed, and a door portion is formed between the slit portion and the lower edge of the screen curtain, the door portion being triangular and freely bendable along the oblique side thereof, and a door weight attached to the lower edge of the door portion. However, the surface of the door portion is rotatably connected to the screen weight attached to the lower edge of the screen curtain except for the door portion along the oblique side of the door portion via a pivoting member. When the door weight is pushed or released by the evacuee and the door weight is pushed out to the back side of the screen curtain or returns to its original position, the direction of movement of the door weight moves along the oblique side of the door. Since identified, never as a door for weights move inadvertently, it is possible to prevent abrasion of the screen curtain. In addition, since the door can be opened and closed while the state of the curtain surface of the door is kept, for example, in a tension state, the opening and closing of the door can be smoothly performed. Further, since the door weight can be reliably returned to the original position, the slit portion can be more reliably closed.

Further, in addition to the magnetic attraction structure, a fitting structure for regulating the relative movement of the door portion along the screen curtain surface is provided between the door weight and the screen weight, so that both sides are provided between the door weight and the screen weight. Can be sufficiently opposed to the shearing force for separating the two, and it is possible to prevent the displacement between the two in a state where they are magnetically attracted to each other. Therefore, at the time of winding the screen curtain or the like, it is possible to prevent problems such as misalignment, and to perform the operation smoothly and smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a conventional example and an embodiment of a screen device for a fireproof compartment according to the present invention.

FIG. 2 is a perspective view of the fire-prevention compartment screen device of FIG. 1 when a door is opened.

FIGS. 3A and 3B are a side view and a cross-sectional view showing a connecting portion between a door weight and a right screen weight of the screen device for a fire protection compartment according to the present embodiment.

FIG. 4 is a partial perspective view showing a proximity portion between a door weight and a screen left weight of the screen device for a fireproof compartment of FIG. 1;

[Explanation of symbols]

 2 Screen curtain 4 Winding shaft 6a Right weight for screen 6b Left weight for screen 8 Weight for door 10 Slit part 14 Door part 16 Oblique side 18 Hinge 22 Fitting convex part with magnet 24 Fitting concave part 26 Metal part

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuyuki Miyagawa 4-640 Shimoseito, Kiyose-shi, Tokyo Inside Obayashi Corporation Technical Research Institute Co., Ltd. (72) Inventor Tadataka Higashi 2-12-9 Shiba-Daimon, Minato-ku, Tokyo Yu Nichika Glass Fiber Co., Ltd. (56) References Japanese Utility Model Sho 56-11857 (JP, U) Japanese Utility Model Hei 3-111355 (JP, U) Japanese Utility Model Sho 51-24095 (JP, U) Japanese Utility Model Sho 54-3850 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A62C 2/00-2/10 E06B 5/16 E06B 9/17

Claims (1)

(57) [Claims] 1. A non-combustible or fire-resistant flexible screen curtain which hangs down from a ceiling side to partition an internal space of a building, and is formed upwardly from a lower edge of the screen curtain so that the screen curtain can be moved right and left. A slit portion forming a triangular door portion that can be bent along the oblique side between the lower edge portion of the screen curtain and a door weight attached to the lower edge portion of the door portion; A screen weight attached to the lower edge of the screen curtain except for a door portion, and a magnetic attraction provided between the door weight and the screen weight to attract the door weight to the screen weight. A screen device for a fire-prevention compartment having a structure, wherein the door weight is provided to the screen weight along the oblique side of the triangular door formed on the screen curtain. A pivoting member that is movably connected, and a fitting structure that is provided between the door weight and the screen weight and that regulates relative movement of the door along the screen curtain surface. Characteristic screen device for fire compartment.