JPH1122341A - Screen device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reinforce a sheet so as not to flex even when the sheet which is shielding a part to be shielded receives wind pressure to be swung, and prevent both side ends of the sheet from slipping from the insertion opening of a guide rail. SOLUTION: The screen device is provided with a guide rail 1 fixed on both side parts of a part to be shielded 2, a winding drum 10 rotatably provided upward between the guide rails 1, a sheet 17 shielding the part to be shielded 2 inserting both the side ends in the insertion openings 3 of the guide rails 1 at the time of being wound and wound back on the winding drum 10 in a winding-back-free manner, and the weight body 20 of the width direction of the sheet 17 attached to the lower end of the sheet 17 and put on the floor face 16 of the part to be shielded 2. A sheet body reinforcing means 23 pulled by the weight part 20 of the sheet 17 at the time of lowering the sheet 17, putting the weight body 20 on the floor and stretched along the sheet 17 shielding the part to be shielded 2 is provided. The sheet body reinforcing means 23 has wire-like material 128. The linear material 28 is formed by a wire 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen device, for example, to shield a shielded portion to maintain the temperature in a building, to diffuse wind and dust into the building, and to spread and spread smoke when a fire occurs. To prevent.

[0002]

2. Description of the Related Art Conventionally, as a screen device of this type, for example, a guide rail fixed to both sides of a shielded portion and having an insertion opening formed vertically in the opposite direction, and a guide rail on both sides thereof A take-up drum rotatably provided above and between the take-up drum and the wind-up drum. A cloth sheet body to be shielded, and a weight body attached to the lower end of the sheet body and landing on the floor surface of the shielded part when the shielded part is shielded by the sheet body. There is a configuration.

[0003]

In the above-mentioned conventional screen device, since the sheet member is made of cloth, if the sheet member is blown by receiving a relatively strong wind pressure in a state where the shielded portion is shielded, the wind pressure is increased. , The sheet member may bend, and both end portions of the sheet member may fall out of the insertion openings of the guide rails on both side portions.

In view of this, a plurality of pipes in the width direction of the sheet are attached at predetermined intervals to an intermediate portion of the sheet, and the sheet whose part to be shielded is shielded by the plurality of pipes has a relatively strong wind pressure. Although it is conceivable that the sheet body does not bend even when it is pushed and received, in this configuration, since the pipe protrudes from one side of the sheet body, the gap between the opposing side plate portions of the guide rail is considered. In other words, it is necessary to open the insertion opening widely, which not only increases the size of the guide rail, but also makes it easy for foreign objects and the like to be caught between the side plate of the guide rail and both ends of the reinforcing pipe when descending. There is a problem that a large winding space for the sheet body is required around the winding drum around the winding drum because the wound sheet body is wound around the winding drum.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in consideration of such problems that the sheet body which shields the portion to be shielded does not bend even if the sheet body is swung by a relatively strong wind pressure. The body can be reliably reinforced by a simple configuration, and both side ends of the sheet body can be prevented from coming out of the guide rail insertion openings on both sides, so that the guide rail can be enlarged and the sheet body can be wound around the take-up drum. It is an object of the present invention to provide a screen device that does not require a turning space.

[0006]

According to a first aspect of the present invention, there is provided a screen device, comprising: a guide rail fixed to both sides of a shielded portion and having insertion openings formed in the vertical direction so as to face each other;
A take-up drum rotatably provided above between the guide rails on both sides, and both sides in the width direction at the insertion openings of the guide rails on the both sides at the time of rewinding and rewinding around the take-up drum. A sheet body that is inserted and lowered to shield the shielded part, and attached to the lower end of the sheet body to shield the shielded part with the sheet body. And a weight body in the width direction of the sheet body to be landed, which is pulled out by the weight body of the sheet body when the sheet body descends, and the weight body touches the floor to shield the shielded portion. A sheet body reinforcing means stretched along the sheet body is provided.

When the take-up drum is driven and rotated in the direction of rewinding the sheet, the sheet is sequentially rewound from the take-up drum. Along the guide rail insertion opening and due to the weight of the weight body.

When the weight body is lowered, the sheet body reinforcing means is pulled out by the weight body in conjunction with the lowering of the sheet body, and the weight body is landed and covered by the sheet body. When the shielding portion is shielded, the sheet body reinforcing means is stretched along the sheet body, and the sheet body is reinforced by the sheet body reinforcing means.

Therefore, when the sheet is lowered and the weight at the lower end of the sheet is landed, the shielded portion is shielded by the sheet and the weight at the same time along the sheet. The sheet body is reinforced by the stretched sheet body reinforcing means so as not to bend significantly.

[0010] Even if the sheet body that shields the shielded portion is swung by a relatively strong wind pressure, the sheet body is greatly bent because it is reinforced by the sheet body reinforcing means. The sheet members are prevented from falling out of the insertion openings of the guide rails on both sides.

According to a second aspect of the present invention, there is provided the screen device according to the first aspect, wherein the sheet body reinforcing means extends linearly along the sheet body which is drawn out by the weight and shields the shielded portion. It is a material.

When the weight body is lowered, the linear material is pulled out by the weight body in conjunction with the lowering of the sheet body, and the weight body is landed and covered by the sheet body. When the portion is shielded, a linear member is stretched along the sheet member, and the sheet member is reinforced by the linear member.

Therefore, when the sheet is lowered and the weight at the lower end of the sheet is landed, the portion to be shielded is shielded by the sheet and the weight, and at the same time along the sheet. The stretched linear material is reinforced so that the sheet body is not largely bent.

[0014] Even if the sheet, which shields the shielded portion, is blown by receiving a relatively strong wind pressure, the sheet is greatly bent because the sheet is reinforced by the linear material. Is prevented so that both ends of the sheet body do not fall out of the insertion openings of the guide rails on both sides.

According to a third aspect of the present invention, in the screen device of the second aspect, the linear material is hung between guide rollers on both sides which are rotatably mounted at positions near both ends of the weight body. And one end is fixed to a fixture provided near the upper end of one guide rail via one guide roller, and the other end is connected to the upper end of the other guide rail via the other guide roller. It is wound around a winder provided in the vicinity so that it can be rewound freely.

When the weight is lowered, the linear material is rewound from the winder by the guide rollers on both sides of the weight in conjunction with the lowering of the sheet, and is pulled out. When the weight is landed and the shielded portion is shielded by the sheet, a linear member is stretched along the sheet, and the sheet is reinforced by the linear member.

At this time, the linear material bridged between the guide rollers on both sides of the weight body has one end fixed to a fixing member near the upper end of one guide rail via one guide roller. Since the end is wound around the winder near the upper end of the other guide rail via the other guide roller, the linear material can be smoothly fed from the winder by the guide rollers on both sides of the weight body. When the weight member is pulled out, the weight body comes down on the floor, and the shielded portion is shielded by the sheet body, the linear material is stretched along the sheet body in a state of crossing diagonally.

When the sheet member receives the relatively strong wind pressure, the cross portion of the linear member is located at the center of the sheet member which is most likely to bend, so that the sheet member is bent by the linear member. Reinforced so that there is no.

Therefore, when the sheet is lowered and the weight at the lower end of the sheet is landed, the shielded portion is shielded by the sheet and the weight, and at the same time, along the sheet. The sheet material is reinforced by a linear material stretched in a crossed state so as not to bend significantly.

[0020] Even if the sheet, which shields the shielded portion, is blown by receiving a relatively strong wind pressure, the sheet is greatly bent because the sheet is reinforced by the linear material. Is prevented so that both ends of the sheet body do not fall out of the insertion openings of the guide rails on both sides.

According to a fourth aspect of the present invention, there is provided the screen device according to the second aspect, wherein the linear material is a plurality of vertical linear members stretched at predetermined intervals in a width direction of the sheet member. The upper ends thereof are wound around a plurality of winders arranged side by side at predetermined intervals between the upper ends of the guide rails on both sides so that they can be freely rewound, and the lower end is formed into a weight body. Each one is stuck.

When the weight is lowered, a plurality of linear members are rewound from the winder in conjunction with the lowering of the sheet by the weight, and are pulled out. When the covered portion is covered with the sheet member and the shielded portion is shielded, a plurality of linear members are stretched along the sheet member at predetermined intervals in the width direction of the sheet member, and the plurality of line members are stretched. The sheet material is reinforced so that the sheet body does not bend.

Therefore, when the sheet is lowered and the weight at the lower end of the sheet is landed, the portion to be shielded is shielded by the sheet and the weight and at the same time along the sheet. The plurality of linear members stretched at predetermined intervals in the width direction of the sheet member reinforce the sheet member so as not to bend significantly.

[0024] Even if the sheet member which shields the shielded portion is swung by receiving a relatively strong wind pressure, the plurality of linear members reinforcing the sheet member are arranged at predetermined intervals in the width direction of the sheet member. By being arranged side by side, the sheet body is regulated so as not to be largely bent by the plurality of linear materials, and both side ends of the sheet body are prevented from coming out of the insertion openings of the guide rails on both sides. Is prevented.

According to a fifth aspect of the present invention, there is provided a screen device according to any one of the second to fourth aspects.
The linear material is formed by a wire.

When the wire is unwound from the winder and pulled out in conjunction with the lowering of the sheet member, and the weight is landed and the shielded portion is shielded by the sheet member.
A wire is stretched along the sheet body, and the wire is reinforced so that the sheet body is not bent.

Further, even if the sheet member shielding the shielded portion is swung by a relatively strong wind pressure, the wire reinforcing the sheet member does not easily expand and contract due to the wind pressure. As a result, the sheet body is prevented from being largely bent, and both side ends of the sheet body are reliably prevented from falling out of the insertion openings of the guide rails on both sides.

The screen device according to claim 6 is the screen device according to any one of claims 1 to 5,
The sheet body is formed of a non-combustible fire-resistant sheet body, and the weight body is formed of a non-combustible weight body.

When the take-up drum is driven and rotated in the direction of rewinding the non-combustible refractory sheet, the non-combustible refractory sheet is sequentially rewound from the take-up drum. Both ends in the width direction are quickly lowered along the insertion openings of the guide rails on both sides and due to the weight of the non-combustible weight.

When the noncombustible weight is lowered, the sheet reinforcing means is pulled out by the noncombustible weight in conjunction with the lowering of the noncombustible refractory sheet, and the noncombustible weight is removed. When the part to be shielded is shielded by the non-combustible fire-resistant sheet body upon landing, the sheet body reinforcing means is stretched along the non-combustible fire-resistant sheet body, and the non-combustible fire-resistant sheet body is reinforced by the sheet body reinforcing means. Is done.

Therefore, the non-combustible refractory sheet is lowered and the non-combustible weight at the lower end of the non-combustible refractory sheet is landed on the non-combustible refractory sheet and the non-combustible weight. At the same time as the shielded portion is shielded, the non-combustible refractory sheet is reinforced by the sheet reinforce means stretched along the non-combustible refractory sheet so as not to bend significantly.

Even if the non-combustible refractory sheet that shields the shielded portion is blown by the relatively strong hot air or the like, the non-combustible refractory sheet is reinforced by the sheet reinforcing means. The non-combustible refractory sheet body is regulated so as not to be largely bent, and both end portions of the non-combustible refractory sheet body are prevented from coming out of the insertion openings of the guide rails on both side portions.

Therefore, a highly airtight fireproof screen device that shields the shielded portion and blocks the inflow and outflow of hot air and the like can be obtained.

[0034]

Embodiments of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIGS. 1 and 2,
Reference numerals 1 denote left and right vertical guide rails which are vertically fixed to both sides of a shielded portion 2 such as an entrance, an emergency exit and a passage, respectively. It is formed to have a substantially U-shaped cross section, each having an insertion port 3 in each direction.

Next, a seat box 5 in which the upper ends of the left and right guide rails 1 are inserted is fixed to a ceiling wall 4 such as an upper frame of the shielded portion 2, and the seat box 5 is attached to the lower end. Insertion opening 3 for the left and right guide rails 1
Left and right seat guide openings 6 open to communicate with
Are formed to be open.

The seat box 5 has left and right side plate portions 7, and bearings 8 are respectively attached to the left and right side plate portions 7. Both ends of the rotating shaft 9 are attached to the left and right bearing members 8, respectively. The parts are rotatably mounted on shafts, and a cylindrical take-up drum 10 in the left-right direction rotating around the rotation shaft 9 is integrally fixed to the rotation shaft 9. The winding drum 10 is formed to have a length slightly shorter than the interval between the end plates of the left and right guide rails 1. A rotating wheel 11 is fixed to one end of the rotating shaft 9.

A motor 12 capable of normal and reverse rotation is fixed in one side of the seat box 5, and a driving wheel 14 is fixed to an output shaft 13 of the motor 12, and the driving wheel 14 and the rotating wheel
An endless revolving body 15 is suspended between the body 11.

When the motor 12 is actuated, the rotating shaft 11 is rotated via the endless rotating body 15, and the winding drum 10 is rotated by the rotating shaft 11 to form a sheet member to be described later. In the direction in which the sheet is wound and in the direction in which the sheet is unwound. The motor 12 is operated, for example, by an output signal such as a fire signal from a control means, and a weight body described later is attached to the shielded portion 2.
The operation is stopped by a stop signal from the control means at the time of landing on the floor surface 16.

Next, an upper end portion of a sheet member 17 for shielding the shielded portion 2 is fixed to the winding drum 10 and is wound so as to be rewound freely. The sheet body 17 is formed of a non-combustible fire-resistant sheet body 18 made of a non-combustible fire-resistant sheet and a non-flammable fire-resistant sheet. The non-combustible fire-resistant sheet body 18 is made of, for example, one piece made of glass cloth, silica cloth, or the like. Made of flame-retardant cloth or the like.

The non-combustible refractory sheet 18 is formed to have a predetermined length which is rewound from the winding drum 10 and shields the shielded portion 2. Each of them is formed as an insertion portion 19 to be inserted into the insertion opening 3 of the rail 1.

At the lower end of the non-combustible sheet 18, there is provided a weight 20 in the width direction of the non-combustible sheet 18 to be placed on the floor 16 of the shielded part 2. This weight body
20 is formed of a non-combustible weight 21 and this non-combustible weight 21
Are formed as insertion portions 22 having both end portions inserted into the insertion openings 3 of the left and right guide rails 1 so as to be vertically movable, respectively.
The outer ends of the insertion portions 22 at both ends are the incombustible refractory sheet
It is formed continuously with the outer end of the insertion portion 19 at both ends in the width direction of the insert 18.

Next, when the non-combustible refractory sheet 18 descends, it is pulled out by the non-combustible weight 21 of the non-combustible refractory sheet 18, and the non-combustible weight 21 is landed on the non-combustible refractory sheet 18. There is provided a sheet body reinforcing means 23 which is stretched along the nonflammable refractory sheet body 18 which shields the sheet.

The sheet body reinforcing means 23 is located near both ends of the non-combustible weight body 21 and is rotatably supported on both sides of the guide rollers 24, and the upper end of the guide rail 1 on both sides. A fixing member 26 provided near one end of the mounting frame 25 fixed therebetween, that is, near the upper end of one guide rail 1;
Of the other guide rail 1
And a take-up device 27 provided near the upper end of the guide roller 24, and one end is fixed to the fixing member 26 via one guide roller 24 and the other end is connected to the guide roller 24 on the both sides. And a linear material 28 that is rewound around the winder 27 via the guide roller 24.

The linear member 28 is formed of one linear portion stretched between the one guide roller 24 and the fixing member 26.
29 and the other linear portion 30 stretched between the other guide roller 24 and the winder 27 are stretched crosswise, and the cross portion 31 is formed by the incombustible weight 21. When the shielded portion 2 is shielded by the non-combustible refractory sheet 18 upon landing, it is positioned substantially at the center of the non-combustible refractory sheet 18.

The linear material 28 is formed of a wire 32 or a member in the form of an elongated wire such as a rope or a string, which is wound around the winder 27 so as to be freely rewound.

The winder 27 is mounted on the mounting frame.
A take-up spindle 33 rotatably mounted on a shaft 25, and this take-up spindle
A pulley 34 that is fixed to 33 and winds the wire 28 so that the wire 28 can be rewound freely; and a pulley 34 that is provided on the winding support shaft 33 and connects the pulley 34 to the wire 28 at all times. And a coil spring 35 for urging in the winding direction.

When the non-combustible refractory sheet 18 descends, the linear material 28 is rotated by the non-combustible weight 21 of the non-combustible refractory sheet 18 against the coil spring 35. The non-combustible weight body 21 is unwound from the tube 34 and pulled out. The non-combustible weight body 21 is placed on the floor and stretched along the non-combustible fire-resistant sheet 18 covering the shielded portion 2.

Next, the operation of the embodiment shown in FIGS. 1 and 2 will be described.

When shielding the shielded portion 2, for example, when the motor 12 is operated by a fire signal from the control means at the time of a fire for shielding the shielded portion 2, the output from the motor 12 causes the endless revolving body 15. The winding drum 10 of the rotating shaft 9 is driven and rotated in the direction of rewinding the sheet body 17, that is, the nonflammable refractory sheet body 18, and the nonflammable refractory sheet body 18 is sequentially wound from the winding drum 10. Will be returned.

The two insertion portions of the non-combustible refractory sheet 18
19 are guided and lowered along the insertion openings 3 of the left and right guide rails 1 respectively.
The weight 20 at the lower end of the non-combustible weight 21, that is, both the insertion portions 22 of the non-combustible weight 21 are guided along the insertion openings 3 of the left and right guide rails 1, respectively. Descended.

When the non-combustible weight 21 is lowered, the non-combustible weight 21 is moved in conjunction with the lowering of the non-combustible weight 21.
The wire material 28 of the sheet body reinforcing means 23, that is, the wire
32 is unwound from the pulley 34 which is rotated against the coil spring 35 and is pulled out. When the non-combustible weight body 21 is landed and the non-combustible refractory sheet 18 covers the shielded portion 2, A wire 32 is stretched along the non-combustible sheet 18, and the non-combustible sheet 18 is reinforced by the wire 32.

At this time, the wire 32 stretched between the guide rollers 24 near both sides of the noncombustible weight body 21 has one end fixed to a fixing tool and the other end freely wound around a pulley 34. When the non-combustible weight body 21 is lowered, the wire 32 is pulled out from the pulley 34 as the other linear portion 30 by the guide rollers 24 near both ends, and is also moved from the guide roller 24 on the right side in FIG. Is fed out as a linear portion 29.

The wires 32 are crossed diagonally between the one linear portion 29 and the other linear portion 30 by the guide rollers 24 near both sides of the noncombustible weight body 21 so as to be incombustible. When the non-combustible weight body 21 is smoothly pulled out from the pulley 34 along the ground 18, and the shielded portion 2 is shielded by the non-combustible fire-resistant sheet body 18 along the non-flammable fire-resistant sheet body 18, the non-combustible weight body 21 is moved along the non-combustible fire-resistant sheet body 18. The wire 32 is stretched in a crossed state.

Further, the cross portion 31 of the wire 32 is positioned substantially at the center of the non-combustible refractory sheet 18 which is most easily bent when the non-combustible refractory sheet 18 receives a relatively strong wind pressure or the like. The wire 32 regulates and reinforces the nonflammable refractory sheet 18 so that it does not bend due to wind pressure or the like from a direction opposite to the wire 32.

Therefore, the non-combustible refractory sheet 18 is lowered to move the non-combustible weight body at the lower end of the non-combustible refractory sheet 18.
At the same time, the non-combustible refractory sheet body 18 and the non-combustible weight body 21 shield the shielded portion 2 by landing,
The wire 32 of the sheet body reinforcing means 23 stretched along the nonflammable fireproof sheet body 18 causes the nonflammable fireproof sheet body 18 to be largely bent by wind pressure or the like from a direction opposite to a side surface on which the wire 32 is stretched. It is reinforced so that there is no.

Even if the non-combustible refractory sheet 18 that shields the shielded portion 2 is swung by receiving a relatively strong wind pressure or the like, the non-combustible refractory sheet 18 can be used as a wire for the sheet reinforcing means 23.
By being reinforced at 32, the non-combustible refractory sheet body 18 is regulated so as not to be largely bent, and the insertion portions 19 at both end portions of the non-combustible refractory sheet body 18 are guided by guide rails at both side portions. 1 is prevented from coming out of the insertion slot 3.

Therefore, when the shielded portion 2 is shielded by the sheet member 17 and the weight member 20, even if the sheet member 17 is shaken by receiving a relatively strong wind pressure or the like, the sheet member is shielded by the wire 32. Since the sheet member 17 is reinforced, the insertion portions 19 at both end portions of the sheet member 17 can be inserted into the insertion holes 3 of the guide rails 1 at both side portions.
It is used as a highly airtight screen device that is prevented from getting out of the device and blocks outflow and inflow of wind, dust and the like.

When the shielded portion 2 is shielded by the non-combustible fire-resistant sheet 18 and the non-combustible weight 21, the non-combustible fire-resistant sheet 18 is heated by the hot air at the time of a fire. Also,
Since the non-combustible refractory sheet 18 is reinforced by the wire 32, the insertion portions 19 at both ends of the non-combustible refractory sheet 18 are prevented from coming out of the insertion openings 3 of the guide rails 1 on both sides. It is used as a highly airtight fireproof screen device that blocks the inflow and outflow of hot air and the like during a fire.

Next, in the embodiment shown in FIG. 1 and FIG. 2, the sheet body reinforcing means 23 along one side of the sheet body 17 which shields the shielded portion 2, that is, the non-combustible refractory sheet body 18.
The wire 32 of the sheet body reinforcing means 23 is not limited to the case where the wire 32 is stretched, but the wire 32 of the sheet body reinforcing means 23 extends along the other side of the sheet body 17 that shields the shielded portion 2, that is, the non-combustible fireproof sheet body 18. That is, the wire 32 of the sheet reinforcing means 23 may be stretched along the side opposite to the side on which the sheet 17, that is, the non-combustible refractory sheet 18 receives a predetermined wind pressure or hot air at the time of fire. To be installed.

The wires 32 of the sheet body reinforcing means 23 are respectively stretched along both sides of the sheet body 17, that is, the non-combustible refractory sheet body 18.
That is, the non-combustible refractory sheet 18 may be reinforced so as to be sandwiched from both sides. Other configurations are the same as those in the above embodiment.

With this configuration, even if the non-combustible refractory sheet 18 receives a predetermined wind pressure or a hot air at the time of fire from either one side or the other side, the non-combustible refractory sheet 18 The flexure of the refractory sheet body 18 in any direction is restricted, and the insertion portions 19 at both end portions of the incombustible refractory sheet body 18 are prevented from falling out of the insertion openings 3 of the guide rails 1 at both side portions. .

Next, in each of the above-described embodiments, a sheet member in which a single linear member 28, that is, a wire 32, is shielded from the shielded portion 2 will be described.
17 has been described in which the wires 32 are used to reinforce the non-combustible refractory sheet 18 by stretching them in a crossed state along the non-combustible refractory sheet 18, but the present invention is not limited to this. The refractory sheet 18 may be reinforced with a plurality of linear members 36, that is, wires 37, which are stretched along the non-combustible refractory sheet 18.

In this case, for example, as shown in FIGS. 3 and 4, a horizontal mounting frame 39 is horizontally fixed to a fixing plate portion 38 of the seat box 5 fixed to the ceiling wall portion 4. Guide rails 1 on both sides of the frame 39
A plurality of winders located at a predetermined interval between the upper ends of
40 are provided respectively.

The plurality of winders 40 are mounted on the mounting frame.
A take-up spindle 41 rotatably mounted on 39, and this take-up spindle
A pulley 42 fixed to 41 and configured to rewind the wire 36, that is, the wire 37, in a freely rewinding manner; and a pulley 42 provided on the winding support shaft 41 and connecting the pulley 42 to the linear material via the winding support shaft 41. 36, that is, a coil spring 43 that constantly urges the wire 37 in the winding direction.

The upper ends of the plurality of wires 37, which are stretched at predetermined intervals in the width direction of the non-combustible refractory sheet 18 to the plurality of winders 40, are fixed and rewindable. The lower ends of the plurality of wires 37 are wound around the weight body 20, that is, the non-combustible weight body 21.
40 are fixed to each other at intervals.

When the non-flammable refractory sheet 18 descends, the plurality of wires 37 are connected to the non-flammable refractory sheet.
The 18 non-combustible weights 21 are respectively rewound and pulled out from the pulleys 42 rotated against the coil springs 43, and the non-combustible weights 21 land on the shielded portion 2 It is stretched along the shielded noncombustible refractory sheet 18.

Since other configurations are the same as those of the above-described embodiment, the same components as those of the above-described embodiment are denoted by the reference numerals used in the above-described embodiment, and the description thereof is omitted.

With this configuration, when the non-combustible weight body 21 of the non-combustible refractory sheet body 18 is lowered, the plurality of wires 37 are connected by the non-combustible weight body 21 to the non-combustible refractory sheet body 18. The uncombustible weight body 21 is unwound from the winder 40 in conjunction with the lowering of the floor.
When the shielded portion 2 is shielded by the non-combustible fire-resistant sheet member 18 after landing on the floor 16, a plurality of the non-flammable fire-resistant sheet members 18 are arranged at predetermined intervals in the width direction of the non-combustible fire-resistant sheet member 18. Each of the wires 37 is stretched, and the plurality of wires 37 are
Thus, the non-combustible refractory sheet 18 is reinforced so as not to bend.

Therefore, the non-combustible refractory sheet 18 is moved down to lower the non-combustible weight at the lower end of the non-combustible refractory sheet 18.
When the floor 21 is landed, the shielded portion 2 is shielded by the incombustible refractory sheet 18 and the incombustible weight 21, and at the same time, the incombustible refractory sheet 18 is moved along the incombustible sheet 18. The non-combustible refractory sheet 18 is reinforced by a plurality of vertical wires 37 stretched at predetermined intervals in the width direction so as not to bend significantly.

Even if the non-combustible refractory sheet 18 shielding the shielding portion 2 is propelled by receiving a relatively strong wind pressure, hot air, or the like from the side opposite to the side on which the plurality of wires 37 are stretched, this non-combustible The plurality of wires 37 that reinforce the refractory sheet body 18 are stretched at predetermined intervals in the width direction of the incombustible refractory sheet body 18, so that the plurality of wires 37 use the plurality of wires 37. The insertion of the non-combustible refractory sheet 18 at both ends is prevented from coming out of the insertion opening 3 of the guide rail 1 at both sides.

Next, in the embodiment shown in FIGS. 3 and 4, the sheet reinforcing member 23 extends along one side surface of the sheet member 17 which shields the shielded portion 2, that is, the non-combustible refractory sheet member 18.
Although the case where the plurality of linear members 36, that is, the wires 37 are stretched has been described, the present invention is not limited to this.
Of the sheet body 17 that shields the shielded portion 2
That is, the non-combustible refractory sheet 18 may be stretched along the other side surface, that is, the plurality of wires 37 of the sheet reinforcing means 23 may be used when the non-combustible refractory sheet 18 has a predetermined wind pressure or fire. It is installed at a predetermined interval along the side opposite to the side receiving hot air or the like.

A plurality of wires 37 of the sheet body reinforcing means 23 are respectively stretched along both side surfaces of the non-combustible fire-resistant sheet 18, and the plurality of wires 37 on both sides are used to connect the non-combustible fire-resistant sheet 18. May be reinforced so as to be sandwiched from both sides. Other configurations are the same as those in the above embodiment.

With this configuration, even if the non-combustible refractory sheet 18 receives a predetermined wind pressure or a hot air at the time of fire from either one side or the other side, the plurality of wires 37 on both sides are applied. The flexure of the non-combustible refractory sheet 18 in any direction is restricted by this.
Of the guide rails 1 on both sides are prevented from being pulled out of the insertion portions 19 at both ends.

[0075]

According to the first aspect of the present invention, the winding drum is driven to rotate in the direction of rewinding the sheet body, whereby the sheet body is sequentially rewound from the winding drum and the weight body is rotated. The weight is quickly lowered, but when the weight is lowered, the weight is used to pull out the sheet reinforcing means in conjunction with the lowering of the sheet, and
When the weight body reaches the floor and the shielded portion is shielded by the sheet body, the sheet body reinforcing means is stretched along the sheet body.

Therefore, when the sheet is lowered and the weight at the lower end of the sheet is landed, the shielded portion is shielded by the sheet and the weight and at the same time along the sheet. The sheet body reinforcing means to be stretched can surely reinforce the sheet body so as not to be largely bent.

Further, even if the sheet member which shields the shielded portion is swung by receiving a relatively strong wind pressure, the sheet member is greatly bent because the sheet member is reinforced by the sheet member reinforcing means. The airtightness that can prevent the both ends of the sheet body from slipping out of the insertion holes of the guide rails on both sides without fail, for example, to maintain the temperature and prevent the inflow and outflow of dust and the like can be prevented. Can be improved.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the linear material is pulled out by the weight body in conjunction with the lowering of the sheet body, and the weight body is placed on the floor. When the shielded portion is shielded by the sheet member, the linear member is stretched along the sheet member.

Therefore, when the sheet body is lowered and the weight body at the lower end of the sheet body lands, the shielded portion is shielded by the sheet body and the weight body and at the same time along the sheet body. The stretched linear material can surely reinforce the sheet so that it does not bend significantly.

Further, even if the sheet member that shields the shielded portion is swung by receiving a relatively strong wind pressure, the sheet member is greatly bent because the sheet member is reinforced by the linear material. Therefore, it is possible to prevent both end portions of the sheet body from falling out of the insertion openings of the guide rails on both side portions.

Further, since the linear material is stretched along the sheet member, it is not necessary to increase the size of the guide rail as in the case where a plurality of reinforcing pipes in the width direction are integrally arranged on the sheet member. It is difficult for foreign matter or the like to be caught between the side plates of the guide rails and both end portions of the sheet body when the body is lowered, and a large winding space for the sheet body is not required around the winding drum. The screen device which can improve the appearance while preventing the both end portions from coming off from the insertion openings of the guide rails on both side portions can be provided.

According to the third aspect of the invention, in addition to the effect of the second aspect, when the weight is lowered, the linear material is moved downward by the guide rollers on both sides of the weight. In conjunction with being unwound from the winder and pulled out, and when the weight is landed and the shielded portion is shielded by the sheet, a linear material is stretched along the sheet and The sheet can be reinforced with the linear material.

At this time, the linear material bridged between the guide rollers on both sides of the weight body has one end fixed to a fixing member near the upper end of one guide rail via one guide roller. Since the end is wound around the winder near the upper end of the other guide rail via the other guide roller, the linear material can be smoothly fed from the winder by the guide rollers on both sides of the weight body. When the weight member is pulled out, the weight body gets on the floor and the shielded part is shielded by the sheet body, the linear material can be stretched along the sheet body so as to cross diagonally, and the sheet body has relatively strong wind pressure. Since the cross portion of the linear member is located at the center of the sheet member which is most easily bent when receiving the sheet, the sheet member can be more reliably reinforced so that the sheet member is not bent by the linear member.

Therefore, even if the sheet member that shields the shielded portion is swung by receiving a relatively strong wind pressure, the sheet member is greatly bent because the sheet member is reinforced by the linear material. It is possible to reliably prevent both end portions of the sheet body from coming out of the insertion openings of the guide rails on both side portions.

According to the invention of claim 4, in addition to the effect of the invention of claim 2, when the weight body is lowered, a plurality of linear members are interlocked with the lowering of the sheet body by the weight body. When the weight is landed and the shielded portion is shielded by the sheet while the weight is landed on the winder, it is separated from the winder by a predetermined distance in the width direction of the sheet along the sheet. In this case, a plurality of linear members are stretched respectively, and the plurality of linear members can surely reinforce the sheet body so as not to bend.

Therefore, even if the sheet that shields the shielded portion is swung by receiving a relatively strong wind pressure, the plurality of linear members that reinforce the sheet are spaced at predetermined intervals in the width direction of the sheet. By being stretched, the sheet body is regulated so as not to be largely bent by the plurality of linear members,
Both end portions of the sheet body can be reliably prevented from coming out of the insertion openings of the guide rails on both side portions.

According to the invention of claim 5, claims 2 to 4
In addition to the effects of any one of the inventions described above, the wire is unwound from the winder and pulled out in conjunction with the lowering of the sheet body, and the weight body is landed and the shielded part is shielded by the sheet body. Then, a wire is stretched along the sheet body, and the wire can reinforce the sheet body so as not to bend.

Further, even if the sheet member shielding the shielded portion is swung by receiving a relatively strong wind pressure, the wire reinforcing the sheet member does not easily expand and contract due to the wind pressure. As a result, the sheet body is prevented from being greatly bent, and both side ends of the sheet body can be reliably prevented from falling out of the insertion openings of the guide rails on both sides.

Further, by forming the linear member for reinforcing the sheet member with a wire, the wire member can sufficiently resist the wind pressure so that the sheet member does not bend against a relatively strong wind pressure. Even if it is stretched along the body, it does not protrude greatly from the shielding surface of the sheet body like a reinforcing pipe, and the space for winding the sheet body may be the space for winding the sheet body, and both sides of the sheet body as a whole It is possible to provide a screen device that can improve the appearance while preventing the ends from coming out of the insertion openings of the guide rails on both sides.

According to the invention of claim 6, claims 1 to 5
In addition to the effects of any one of the inventions described above, the linear material of the sheet body reinforcing means is pulled out in conjunction with the lowering of the non-combustible refractory sheet body by lowering the non-combustible weight body, and the non-combustible weight is When the body is landed and the shielded portion is shielded by the non-combustible refractory sheet, the linear material of the sheet reinforcing means is stretched along the non-combustible refractory sheet, and the non-combustible The refractory sheet body can be reliably reinforced so as not to be largely bent.

Further, even if the non-combustible refractory sheet which shields the shielded portion is blown by receiving a relatively strong hot air or the like, the non-combustible refractory sheet is reinforced by the linear material of the sheet reinforcing means. This restricts the non-combustible refractory sheet body from being greatly bent, and can reliably prevent both end portions of the non-combustible refractory sheet body from falling out of the insertion openings of the guide rails on both side portions.

Further, since the linear material of the sheet reinforcing means is formed of a wire, the wire is less likely to be adversely affected by heat such as being easily burned out by hot air or the like, and the non-combustible refractory sheet is reinforced. Can be maintained as long as possible.

Therefore, a sheet reinforcing means is provided to extend along the non-combustible refractory sheet that shields the shielded portion and to prevent the non-combustible refractory sheet from bending. It is possible to provide a highly airtight fireproof screen device capable of preventing the diffusion of smoke and the spread of fire.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a screen device according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a partially cutaway front view of a screen device according to another embodiment.

FIG. 4 is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rail 2 Shielding part 3 Insertion opening 10 Winding drum 16 Floor surface 17 Sheet material 18 Noncombustible fireproof sheet material 20 Weight body 21 Noncombustible weight body 23 Sheet body reinforcing means 24 Guide roller 26 Fixing tools 27,40 Winder 28, 36 Wire 32, 37 Wire

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FIE06B 9/17 G

Claims (6)

[Claims] 1. A guide rail fixed to both sides of a shielded portion and opposed to each other and formed with an insertion opening in a vertical direction, and a winding rotatably provided above and between the guide rails on both sides. A take-up drum, and a sheet body which is wound around the take-up drum so as to be freely rewound, and which is lowered at the time of rewind by inserting both end portions in the width direction into the insertion openings of the guide rails at the both side portions to cover the covered portion. And a weight in the width direction of the sheet body, which is attached to a lower end portion of the sheet body and lands on the floor surface of the shielded part when the shielded part is shielded by the sheet body. A sheet body reinforcing means which is pulled out by the weight body of the sheet body when the sheet body descends, and which is stretched along the sheet body which is covered with the weight body and the shielded portion is covered by the weight body; A screen device characterized by the above-mentioned. 2. The screen device according to claim 1, wherein the sheet body reinforcing means is a linear material stretched along the sheet body which is drawn out by the weight body and shields the shielded portion. . 3. The linear member is positioned between both ends of the weight body and is rotatably supported between both side guide rollers. One end of the linear member is connected to one guide roller via the one guide roller. The other end is fixed to a fixing tool provided near the upper end of the rail, and the other end is freely rewound to a winder provided near the upper end of the other guide rail via the other guide roller. The screen device according to claim 2, wherein the screen device is wound. 4. The linear material is composed of a plurality of vertical linear materials stretched at predetermined intervals in the width direction of the sheet member, and their upper ends are formed at the upper ends of the guide rails on both sides. The screen device according to claim 2, wherein the plurality of winders are arranged so as to be unwound freely around a plurality of winders arranged at predetermined intervals between the portions, and the lower end portions are respectively fixed to the weight bodies. . 5. The screen device according to claim 2, wherein the linear material is formed of a wire. 6. The sheet body according to claim 1, wherein the sheet body is formed of a non-combustible fire-resistant sheet body, and the weight body is formed of a non-combustible weight body. A screen device as described.