JPH11173034A - Refractory screen device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refractory screen device provided with an incombustible sheet body having an incombustible floor sitting body capable of surely airtightly blocking a part between the lower end of the incombustible sheet body and a floor face shielding a part to be shielded in a simple constitution having at least the small number of parts. SOLUTION: The refractory screen device is provided with a guide rail 15 fixed in opposition to both side parts, an incombustible sheet body 31 shielding a part to be shielded 16 between both guide rails 15, and an incombustible floor reaching body 33 provided on the lower end of the incombustible sheet body 31 to reach the floor face 30 of the part to be shielded 16. The incombustible floor reaching body 33 is provided with a hollow floor face blocking body 36 formed on the lower end of the incombustible sheet body 31, having an insertion part liftably inserted in the insertion opening 17 of both guide rails 15 on both side ends, deformed in a flatness at the time when a lower part has reached the floor face 30 and made a floor reaching part 35, and a weight 41 having an insertion projection part 39 fixed on the upper part of the floor face blocking body 36, liftably inserted in the insertion opening 17 of both guide rails 15 on both the side ends and an expanding open plate part 40 expanding and opening the upper part of the floor face blocking body 36 on both face parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refractory screen device, for example, a device for preventing the spread of smoke and the spread of fire in a fire.

[0002]

2. Description of the Related Art Fireproof screen devices of this type include:
For example, as shown in FIGS. 17 and 18, a non-combustible sheet member 3 that shields a shielded portion 2 between the guide rails 1 on the both sides between vertical guide rails 1 fixed to both sides. Are provided so as to be able to move up and down freely, and a non-combustible flooring body 5 is provided at the lower end of the non-combustible sheet body 3 to land on the floor surface 4 of the shielded portion 2.

[0003] The non-combustible landing body 5 is integrally fixed to the non-combustible sheet body 3 at the upper end of a folded piece 3 a obtained by folding the lower end of the non-combustible sheet body 3, and has both side ends. A hollow housing portion 6 formed to be open, a nonflammable flat plate-shaped body 7 housed in the housing portion 6, and a flat plate-shaped body 7
And a bag-shaped deformable floor covering 8 that is in contact with one surface of the housing 6 via one surface of the housing section 6 and is placed on the floor 4 of the shielded part 2. Outer surface part and the accommodation part 6
A pair of support plates 10 each having a support protrusion 9 which is in contact with the other surface portion and protrudes at the lower end in the opposite direction.
And a pair of non-combustible end sheets which respectively abut against the outer surfaces of the pair of support plates 10 and are expanded by the support protrusions 9.
11, an end sheet holding plate 12 abutted on the outer surface of each of the pair of non-combustible end sheets 11, and the other end sheet holding plate 12 from the one end sheet holding plate 12 via the respective members. Bolt 13 penetrated and this bolt 13
A nut 14 that is screwed onto and clamps the members.
Is configured.

[0004]

FIG. 17 and FIG.
In the refractory screen device shown in FIG. 18, the non-combustible sheet body 3 is moved down so that the floor closing member 8 provided on the non-combustible landing body 5 at the lower end of the non-combustible sheet body 3 is shielded as shown in FIG. The lower end of the pair of non-combustible end sheets 11 is landed on the floor 4 and deforms in the opposite directions to be separated from each other. Since the space between the lower end of the noncombustible sheet body 3 and the floor surface 4 is hermetically closed by the closing body 8 and the pair of noncombustible end sheets 11, it is preferable as a fireproof screen device.

[0005] However, the non-combustible landing body 5 requires the flat plate-shaped body 7 for the weight and for attaching each member, and when the pair of non-combustible end sheets 11 land, this pair of non-combustible end sheets 11 is required. In order to deform and separate the lower end portions of the non-combustible end sheet 11 in opposite directions to each other, a pair of support plates 10 having support protrusions 9 for previously expanding the pair of non-combustible end sheets 11 are required, Therefore, the non-combustible flooring body 5 has a large number of parts as a whole, and its configuration is complicated, and there is a problem that these assembling operations require trouble.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and has a simple structure with a small number of parts and a simple structure, and ensures that the lower end portion of a non-combustible sheet member that shields a shielded portion and the floor surface are airtight. It is an object of the present invention to provide a fireproof screen device provided with a noncombustible sheet having a noncombustible landing body that can be closed.

[0007]

According to a first aspect of the present invention, there is provided a refractory screen device comprising: a guide rail which is fixed to both sides of a shielded portion and has an insertion opening formed in a vertical direction so as to face each other; A non-combustible sheet body which is provided to be movable up and down by inserting both side ends in the width direction into the insertion openings of the guide rails, and which is provided at a lower end of the non-combustible sheet body when lowering the shielded portion; A non-combustible landing body that is to be placed on the floor surface of the shielded part, wherein the non-combustible landing body is formed at a lower end of the non-combustible sheet body and has guide rails at both side ends at both side ends. A hollow floor surface closing body having an insertion portion inserted into each of the insertion openings so as to be able to ascend and descend, and a lower portion having a floor portion that deforms into a flat shape when landing on the floor surface to land on the floor surface; It is fixed to the upper part of the body and guides the two sides at both ends Weights each having an insertion protrusion inserted into the insertion opening of the tool so as to be able to move up and down, and having an expanding plate portion on each of both sides to expand the floor surface closing body downward. It is.

When the non-combustible sheet is to be shielded, the non-combustible sheet is lowered so that both ends in the width direction of the non-combustible sheet are aligned with the guide rail insertion openings on both sides of the floor. As for the closing body, the insertion portions at both ends are lowered along the insertion holes of the guide rails on both sides, and the weight body is lowered with the insertion projections at both ends along the insertion holes of the guide rails on both sides, respectively. Further, the weight of the non-combustible landing body allows the non-combustible sheet body to smoothly descend.

[0009] Further, when the floor covering of the non-combustible flooring body is landed on the floor surface by descending of the non-combustible sheet body, the landing part of the floor covering is made to contact the floor. The floor is deformed into a flattened state in a large state, and the floor is closed, and the space between the lower end of the non-combustible sheet member and the floor is hermetically closed by the floor closing body having the deformed floor.

[0010] In this case, since the floor covering is expanded downward at the expanding plates on both sides of the weight body, the landing portion of the floor covering is landed on the floor. In this case, the landing portion of the floor blockage body surely deforms into a flat shape in a state where the contact surface with the floor surface is enlarged, and is brought into close contact with the floor surface.

[0011] Further, the landing portion is deformed into a flat shape and the landing is performed, so that the insertion portions at both end portions of the floor blocker having the landing portion are inserted into the insertion holes of the guide rails on both side portions. It is deformed into a substantially wavy shape and is closely attached to the opening edge of the insertion port.

Therefore, when the landing portion of the floor covering is landed on the floor surface of the shielded portion, the non-combustible flooring and the non-combustible sheet having the floor covering form the shielded portion. Is reliably airtightly shielded. In the state where the shielded portion is shielded, the airtightness and fire resistance of the shielded portion are improved as a whole by the non-combustible sheet and the non-combustible flooring body, and the shielded portion moves from one side to the other side. As a result, the outflow of hot air and the like is prevented, and the diffusion and spread of smoke of the hot air and the like are prevented.

According to a second aspect of the present invention, there is provided a fireproof screen device according to the first aspect, wherein the floor surface closing body is formed of a hollow body, and the hollow body is formed by squeezing the hollow body downward from both sides. It has a hollow landing section that is formed and is flatly deformed when landing on the floor surface.

The hollow landing portion of the floor covering of the non-combustible landing body is landed on the floor surface when the non-combustible sheet body descends, so that the hollow landing portion of the floor covering of the floor is lowered. The lower end of the non-combustible sheet body and the floor surface are deformed into a flat shape in a state where the contact surface with the surface is enlarged and further closely adhered to the floor surface, and the floor closing member having the deformed hollow landing portion is used. The gap is more reliably hermetically closed.

According to a third aspect of the present invention, there is provided a refractory screen device according to the first aspect, wherein the weight body comprises:
It has an expanding plate portion which is formed integrally on both sides by expanding downward.

Since the floor blocker is reliably expanded downward by the integral expansion plate on both sides of the weight body, the landing portion of the floor blocker can be placed on the floor surface. When landing on the floor, the landing section of the floor covering is securely deformed into a flat shape in a state where the contact surface with the floor is enlarged, so that the floor is in close contact with the floor. Further, since the weight body has the expanding plate portion formed integrally, the weight body is inserted into the floor surface closed body and is easily fixed to the upper part in the floor surface closed body.

According to a fourth aspect of the present invention, there is provided a fire-resistant screen device according to the first aspect, wherein the non-combustible flooring body is provided on both sides of the weight body with an expanded plate portion interposed therebetween. And a pair of vertically non-combustible end sheets that are fixed and land on the floor surface in a direction opposite to each other when landing on the floor.

The landing section of the floor blocker of the non-combustible flooring body is landed on the floor surface by descending of the non-combustible sheet body, so that the floor section of the floor blocker is in contact with the floor surface. The contact surface of the pair of non-combustible end sheets is deformed into a flat shape in a state where the contact surface is enlarged, and the lower end portions of the pair of non-combustible end sheets are landed on the floor surface, and the pair of non-combustible end sheets are interposed through the floor surface closing body. The lower end portions of the non-combustible end sheets are separated from each other in the opposite directions and are deformed so as to be expanded and adhere to the floor surface.

Accordingly, the shielded portion is securely and hermetically shielded by the non-combustible flooring body having the floor surface closing body and the pair of non-combustible end sheets, and the non-combustible sheet body.

Further, in a state where the shielded portion is shielded by the non-combustible landing body and the non-combustible sheet body, the pair of non-combustible end sheets of the non-combustible sheet body and the non-combustible landing body reduce pressure of hot air or the like. When pressed from one side to the other side,
While the non-combustible sheet body flexes slightly in the pressing direction, while flexing toward the floor-closing body on the other non-combustible end sheet side while the non-combustible end sheet on one side remains on the lower end. It is slid along the floor. Also,
The same applies to a case where a pair of non-combustible end sheets of a non-combustible sheet body and a non-combustible landing body are pressed from the other surface toward one surface.

Therefore, even if the non-combustible sheet body and the pair of non-combustible end sheets are subjected to pressure from either one side or the other side, the pair of non-combustible end sheets are slid in a state of landing on the floor. The pair of non-combustible end sheets complements the airtightness of the floor covering that has landed on the floor, and the pair of non-combustible end sheets and the floor covering as a whole more securely seals the floor. The airtightness between them is further improved.

According to a fifth aspect of the present invention, there is provided a fireproof screen device according to the fourth aspect, wherein the pair of non-combustible end sheets extend from both ends of the weight body from the upper end portions of the pair of non-combustible end sheets. It is to be fixed by a fixing tool inserted into each of the open plate portions.

The fixture is inserted from the outer surface of the upper end of the pair of incombustible end sheets to the expanding plates on both sides of the weight body, so that the pair of non-combustible end sheets are attached to the expanding plates on both sides of the weight body. The upper ends of the non-combustible end sheets are each easily fixed. At this time, there is no need to perform a tightening operation from both sides with bolts and nuts, and only an operation to insert a fixing tool from one side of the outer surface of the upper end portion of the non-combustible end sheet, and these assembling operations are easily performed.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 to 7, reference numeral 15 denotes left and right guide rails vertically fixed to the opposite side walls of the shielded portion 16 respectively. The left and right guide rails 15 are formed to have a substantially U-shaped cross section with the insertion openings 17 in the vertical direction facing each other. The insertion port 17 is provided on an inner plate portion of the guide rail 15.
18, each having a vertical guide piece 19 formed opposite to the opening edge. The shielded portion 16 means an opening such as an entrance, an emergency exit, and a passage.

A screen box 21 in which the upper ends of the left and right guide rails 15 are inserted is fixed to an upper side wall portion 20 such as an upper frame of the shielded portion 16, and the screen box 21 is attached to the lower end portion thereof. Left and right guide openings 22 open to communicate with the insertion openings 17 of the left and right guide rails 15, respectively.
have.

A winding shaft 24 having a left-right winding drum 23 is rotatably mounted in the screen box 21. One end of the winding shaft 24 drives the winding shaft 24. A rotating rotating wheel 25 is fixed. A forward / reverse motor 26 is fixed in the screen box 21,
A drive wheel 28 is fixed to the output shaft 27 of the motor 26 at a position facing the rotating wheel 25, and an endless revolving body 29 is suspended between the driving wheel 28 and the rotating wheel 25 so as to freely rotate. ing. The motor 26 is a non-combustible landing body which will be described later.
The rotation is automatically stopped at a predetermined number of rotations set in accordance with the landing position at which the floor 30 is landed on the sixteen floor surfaces 30.

Next, the above-mentioned shielded portion is
The upper end of a vertically movable non-combustible sheet body 31 that shields 16 is fixedly wound around the non-combustible sheet body 31. Both ends in the width direction of the non-combustible sheet body 31 are vertically movable to the insertion openings 17 of the left and right guide rails 15. Each is formed as an inserted portion 32 that has been inserted. Further, a non-combustible landing body 33 is provided at a lower end of the non-combustible sheet body 31.

The non-combustible landing body 33 includes a hollow elastically deformable floor covering 36, a weight 41 fixed to an upper portion inside the floor covering 36, and a weight 41 attached to the weight 41. A presser plate 42 in contact with the upper part of the floor blocker 36;
And a fixing screw 43 as a fixing tool which is screwed into and inserted into 41, and clamps the upper part of the floor blocker 36.

The floor blocker 36 is formed of the non-combustible sheet.
An insertion portion 34 formed at the lower end of 31 and inserted into the insertion openings 17 of the left and right guide rails 15 at both end portions so as to be able to move up and down respectively.
And a floor portion 35 that deforms into a flat shape at the time of landing on the floor surface 30 to land on the floor surface 30.

That is, the floor blocker 36 folds the lower end of the non-combustible sheet member 31 and forms the folded piece.
The upper end of 37 is formed integrally with a non-combustible sheet body 31 with a non-combustible sewing thread or the like, and is formed of a cylindrical hollow body 38 having both ends opened. The insertion portion 34 is formed, and a lower portion of the hollow body 38 is formed as the floor portion 35. The floor portion 35 is landed on the floor surface 30 and is pressed from above to thereby lower the floor surface 30. It is deformed into a flat shape with a large contact surface with the floor 30 so as to be in close contact with the floor surface 30.

Further, the weight 41 fixed to the upper part of the inside of the floor blocker 36 has insertion projections 39 which are inserted into the insertion openings 17 of the left and right guide rails 15 so as to be vertically movable at both side ends. At the same time, it is formed to have an expanding plate portion 40 on each of both side portions for expanding the floor surface closing body 36 downward.

The weight body 41 is a non-combustible weight member formed by bending an angle material or a plate-like material, each of which has an integral expanding plate portion 40 formed by expanding downward on both sides. The two end portions of the two expanding plate portions 40 are not inserted into the insertion openings 17 of the left and right guide rails 15, leaving the insertion portions 34 at both end portions of the hollow body 38. It is formed. Further, the insertion protrusions 39 are formed at both side ends of the continuous portion of the both expanding plate portions 40 so as to integrally protrude in opposite directions to each other. The weight body 41 is fixed to the upper portion inside the floor surface closing body 36, and the floor surface closing body 36 is expanded and held downward in a substantially mountain shape by the two expanding plates 40. It is supposed to.

The holding plate 42 is located on both the expanding plates 40 of the weight body 41 and is in contact with the upper part of the floor closing member 36, respectively. Pressing projection that projects downward from the lower ends of the two expanding plate portions 40 and presses the side surfaces of the floor surface closing member 36 when the shape is longer in the vertical direction than the height of the floor surface closing member 36, that is, when it comes into contact with the upper portion of the floor surface closing member 36. Part 42
a, and both ends of the hollow body are not inserted into the insertion openings 17 of the left and right guide rails 15.
38 are formed leaving the insertion portions 34 at both ends. The pressing plate 42 is formed of a non-combustible member and also serves as a weight.

Next, when assembling the non-combustible flooring body 33, a round pipe 45 is inserted into the hollow body 38 of the floor surface closing member 36 while the non-combustible sheet body 31 is suspended. The non-combustible sheet body 31 is stretched using the round pipe 45 as a weight.

When the weight 41 is inserted into the upper part of the hollow body 38 along the upper surface of the round pipe 45, the upper part of the hollow body 38 is formed by the two expanding plates 40 of the weight 41. Is expanded into a substantially mountain shape, and a continuous portion, that is, a top portion, of the two expanding plate portions 40 is inserted into a lower end portion of a fixing portion in which the folded piece portion 37 is fixed to the noncombustible sheet body 31.

Further, the holding plates 42 abut against the outer surfaces of the two expanding inclined portions 46 above the hollow body 38 expanded by the two expanding plates 40 of the weight body 41, respectively. The non-combustible landing body 33 can be easily assembled by screwing the fixing screws 43 from the plate 42 to the both expanded plate portions 40 via the both expanded inclined portions 46 and tightening them. Then, the round pipe 45 is pulled out from the hollow body 38.

In this case, the non-combustible landing body 33 is provided with a floor covering 36.
And a weight body 41 having both expanding plate portions 40, and both holding plates 42,
, The number of parts is small as a whole, and the assembling operation is easy and easy.

The two expanding plate portions 40 and the two holding plates 42 hold the two expanding inclined portions 46 at the upper part of the hollow body 38 along the both expanding plate portions 40 in a substantially mountain-shaped expanded state. In addition, the two expanding inclined portions 46 on the upper portion of the hollow body 38 are maintained in a state of being expanded at a predetermined inclination angle. Further, a plurality of the fixing screws 43 are used at predetermined intervals from both the holding plates 42 to the both expanding plate portions 40.

Further, both holding plates 42 are fixed by a plurality of fixing screws 43.
Are tightened, so that both holding plates 42
At the lower ends of the two expanding plate portions 40, the pressing projections 42a projecting downward from the lower ends of the expanding plates 40 press down the expanding slopes 46 at the upper part of the floor blocker 36, respectively. Inclined part
It is designed to regulate 46 deformations.

At this time, the plurality of fixing screws 43 are
Since it is tightened by one-sided operation of screwing into both the widening plate portions 40 through both the widening inclined portions 46, it is necessary to press the head of the bolt on one side and tighten the nut on the bolt from the other side. The assembling operability is improved as compared with a method in which the two widened inclined portions 46 on the upper portion of the hollow body 38 are sandwiched between the bolts and nuts.

The non-combustible sheet body 31 on which the floor blocker 36 is formed is made of a non-combustible material such as glass cloth or silica cloth, and is formed at the lower end of the non-combustible sheet body 31. The floor blocker 36 is deformed by being pressed and comes into close contact with the floor 30.

Next, the operation of the first embodiment will be described.

When the motor 26 is actuated by a fire signal when the shielded portion 16 is shielded, for example, in a fire that shields the shielded portion 16, the output from the motor 26 causes the winding shaft 24 to move the non-combustible sheet member. The non-combustible sheet body 31 is sequentially rewound from the take-up drum 23 of the take-up shaft 24 while being driven to rotate in the rewind direction.

The non-combustible sheet body 31 is provided with both insertion portions 32 of the non-combustible sheet body 31 and both insertion portions of the floor blocker 36.
34 and both insertion projections 39 of the weight body 41 are respectively guided by the insertion openings 17 of the left and right guide rails 1 and lowered, and a non-combustible landing body 33 provided at the lower end of the non-combustible sheet body 31 Due to the weight of the weight body 41 and the weights of the two holding plates 42, the lowering member can be smoothly and quickly lowered.

At this time, the floor closing member 36 formed by the hollow body 38 of the noncombustible landing body 33 hangs downward by its own weight while being suspended at the lower end of the noncombustible sheet body 31 and has a substantially elliptical shape. It is lowered in the state.

Further, the noncombustible flooring body 33 is lowered by the lowering of the noncombustible sheet body 31, and the flooring section 35 at the lower end of the floor closing member 36 provided on the noncombustible flooring body 33 is covered. The non-combustible landing body 33 is lowered to a predetermined position after landing on the floor 30 of the sixteen, and the motor 26 rotates at a set predetermined number of revolutions and stops.

The landing section 35 of the floor blocker 36 is
When the non-combustible landing body 33 is lowered to a predetermined position in a state where it is landed on the ground, that is, the weight 41 and the two holding plates 42 of the non-combustible landing body 33 are lowered to the predetermined position. By
The weight of the weight body 41 and the two holding plates 42 causes the floor blockage 36
Is pressed downward, and the floor of the floor blocker 36 is landed.
The floor 35 is deformed into a flat shape in which the contact surface with the floor surface 30 is enlarged, and the floor is landed. The lower end of the non-combustible sheet body 31 and the floor are closed by the floor surface closing body 36 having the deformed floor portion 35. The gap between the surface 30 is hermetically closed.

In this case, the expanding plate portions 40 on both sides of the weight body 41
The two upper surfaces of the floor blocker 36 are expanded in advance as the expansion inclined portions 46 with the both holding plates 42, and both the holding portions 42a protrude from the lower ends of the both holding plates 42. Since the outer surface of the expanding inclined portion 46 is pressed, when the landing section 35 of the floor closing body 36 lands on the floor 30, the floor closing body
The landing section 35 of 36 is securely deformed into a flat shape in a state where the contact surface with the floor surface 30 is enlarged, and is brought into close contact with the floor surface 30. The floor blocker 36 is a landing section that is deformed into a flat shape as a whole.
It is transformed into a substantially triangular shape with 35 as the base.

Further, when the landing section 35 is deformed into a flat shape and is then placed on the floor, the floor closing member having the landing section 35 is provided.
The insertion portions 34 at both ends of the 36 are deformed into a substantially wavy shape in the insertion openings 17 of the guide rails 15 on both sides, and are brought into close contact with the opposing guide pieces 19 of the two insertion openings 17, respectively. body
The lower ends of the insertion portions 34 at both ends of the 36 are in close contact with the floor surface 30 located in both the insertion openings 17.

Accordingly, when the landing portion 35 of the floor covering 36 is landed on the floor 30 of the shielded portion 16, the non-combustible flooring 33 and the non-combustible sheet having the floor covering 36 are provided. The shielded portion 16 is securely and hermetically shielded by the body 31. When the shielded portion 16 is shielded, the airtightness and fire resistance of the shielded portion 16 are improved as a whole by the non-combustible sheet body 31 and the non-combustible flooring body 33. From the hot air to the other side, and the diffusion of hot air and the like and the spread of fire are prevented.

Next, the second embodiment shown in FIGS. 8 to 13 is different from the first embodiment in that the non-combustible landing body 33 is formed by expanding plates 40 on both sides of the weight body 41. Floor blocker 36
A pair of non-combustible end sheets 47 which are separated from each other in the opposite directions when landing on the floor 30 via the two expanding inclined portions 46 are fixed.

In this case, a pair of non-combustible end sheets 47
A guide edge 48 that rises and falls along the opening edge of the insertion opening 17 of the left and right guide rails 15, that is, the inner plate portion 18 of the left and right guide rails 15, a holding portion 49 at the upper end, And the landing section 50 of the section, and are formed in the same shape into a horizontally long rectangular shape.

The pair of non-combustible end sheets 47
The landing section 35 of the non-combustible landing body 33 and the floor blocker 36
Deforms into a flat shape with a large contact surface with the floor 30
When they are in close contact with each other, they are separated from each other in the front-rear direction on both sides of the floor surface closing body 36 and land on the floor. The pair of non-combustible end sheets 47 are formed of, for example, a non-combustible material having elastic characteristics such as glass cloth and silica cloth, and the landing section 50 at the lower end portion is deformed by being pressed to deform the floor surface 30. It comes to adhere to.

The other structures are the same as those in the first embodiment. Therefore, the same structures as those in the first embodiment are denoted by the reference numerals used in the first embodiment, and their explanations are given. Is omitted.

Next, when assembling the non-combustible flooring body 33, a round pipe 45 is inserted into the hollow body 38 of the floor surface closing body 36 while the non-combustible sheet body 31 is suspended. The non-combustible sheet body 31 is stretched using the round pipe 45 as a weight.

When the weight 41 is inserted into the upper portion of the hollow body 38 along the upper surface of the round pipe 45, the upper portion of the hollow body 38 is formed by the two expanding plates 40 of the weight 41. Is expanded into a substantially mountain shape, and a continuous portion, that is, a top portion, of the two expanding plate portions 40 is inserted into a lower end portion of a fixing portion in which the folded piece portion 37 is fixed to the noncombustible sheet body 31.

A pair of non-combustible end sheets 47 are sandwiched between outer surfaces of the two expanding inclined portions 46 above the hollow body 38 expanded by the two expanding plates 40 of the weight body 41. The pressing plates 42 are in contact with the outer surfaces of the holding portions 49 of the pair of noncombustible end sheets 47, respectively, and the holding portions 49 of the pair of noncombustible end sheets 47 and the two The fixing screws 43 are attached to the two spread plate portions 40 through the open inclined portions 46.
Are screwed in and tightened, whereby the non-combustible landing body 33 can be easily assembled. Then, the round pipe 45 is pulled out from the hollow body 38.

In this case, the non-combustible landing body 33 is provided with a floor covering 36.
And a weight body 41 having both expanding plate portions 40, a pair of non-combustible end sheets 47, and both holding plates 42, so that the number of parts as a whole is small and assembly operation is easy and easy. Assembled.

Then, the sandwiching portions 49 of the pair of incombustible end sheets 47 are sandwiched by the two expanding plate portions 40 and the two holding plates 42 via the two expanding inclined portions 46 on the upper portion of the hollow body 38. The non-combustible end sheet 47 is held in a state of being expanded at a predetermined inclination angle through a floor closing member 36 whose upper part is expanded in a substantially mountain shape. Further, a plurality of the fixing screws 43 are used at predetermined intervals from both the holding plates 42 to the both expanding plate portions 40.

Further, both holding plates 42 are fixed by a plurality of fixing screws 43.
Are tightened, so that both holding plates 42
The upper portions of the pair of non-combustible end sheets 47 are respectively pressed by presser protruding portions 42a protruding downward from the lower ends of the two expanding plate portions 40 at the lower ends of the pair of non-combustible end sheets 47. The upper part is restricted from being deformed.

At this time, the plurality of fixing screws 43 are
From the pair of non-combustible end sheets 47 through the clamping portion 49 and the two expanding inclined portions 46, and tightening by one-side operation to screw into the both expanding plate portions 40, so that the head of the bolt is pressed on one side,
A pair of non-combustible end sheets 47 need to be tightened from the other side to the bolts.
The assembling operability is improved as compared with the one that sandwiches the holding portion 49 and both the widened inclined portions 46.

Next, the operation of the second embodiment will be described.

As in the first embodiment, the landing portion 35 of the floor covering member 36 is placed on the floor 30 and deformed, and the landing portion 50 of the pair of non-combustible end sheets 47 is formed. The lower ends of the landing portions 50 of the pair of non-combustible end sheets 47 are deformed while sliding along the floor surface 30 in the opposite directions. It spreads apart.

Then, the landing section 35 of the floor blocker 36 is
Deforms into a flat shape with a large contact surface with the floor 30
While being in close contact with the floor, the floor landing portions 50 of the pair of non-combustible end sheets 47 are deformed and separated from each other in the opposite directions and are in close contact with the floor 30 in a state of being expanded. The space between the lower end of the noncombustible sheet body 31 and the floor 30 is further airtightly closed by the pair of noncombustible end sheets 47. Therefore, the airtightness and fire resistance are further improved as a whole.

At this time, the pair of non-combustible end sheets 47
In a state where the holding portion 49 is held along the two expanding plates 40 expanded toward the lower side of the weight body 41 and slightly expanded in opposite directions, and the expanding direction is oriented. By being lowered, this pair of non-combustible end sheets
47 is expanded while the landing section 50 smoothly separates in opposite directions while sliding along the floor surface 30.

The pair of non-combustible end sheets 47
The pair of non-combustible end sheets 47 have guide edges 48 that move along the inner plate portion 18 at the opening edges of the insertion openings 17 of the left and right guide rails 15 at both side ends.
The lower end of the landing section 50 of the landing section 50 is landed on the floor surface 30, and when the pair of nonflammable end sheets 47 are separated from each other in the opposite direction and expanded, the opening edge of the insertion opening 17 of the guide rail 15 Inner plate 18
It is guided and smoothly expanded.

Next, in a state where the shielded portion 16 is shielded by the non-combustible sheet body 31 and the non-combustible landing body 33, the non-combustible sheet body 31 and the pair of non-combustible end sheets 47 are subjected to pressure such as hot air. When pressed from one side toward the other side
While the non-combustible sheet body 31 is slightly bent in the pressing direction, one of the non-combustible end sheets 47 pressed in the pair of non-combustible end sheets 47 is in close contact with the floor surface 30 while the other is in a state of being in close contact with the floor surface 30. The non-combustible end sheet 47 is slid along the floor surface 30 while flexing toward the flattened floor surface closing member 36 having a larger contact surface with the floor surface 30 on the side of the non-combustible end sheet 47.

When the non-combustible sheet body 31 and the pair of non-combustible end sheets 47 are pressed from the other side to one side under the pressure of hot air or the like, the pair of non-combustible end sheets
The contact surface of the non-combustible end sheet 47 on the other side pressed against the floor 30 on the one side of the non-combustible end sheet 47 on the other side while the floor is in contact with the floor 30 is flattened. It is slid along the floor surface 30 while flexing toward the elastically deformed floor closing member 36.

Therefore, even when the non-combustible sheet body 31 and the pair of non-combustible end sheets 47 receive a pressure of hot air or the like from either of the two directions, the pair of non-combustible end sheets 47 are placed on the floor 30. The pair of non-combustible end sheets 47 and the pair of non-combustible end sheets 47 supplement the airtightness of the floor-closing body 36 closing between the floor 30 and the pair of non-combustible end sheets 47 and the floor-closing body. Incombustible sheet body 31 and shielded part at 36
The space between the 16 floor surfaces 30 is securely closed in an airtight manner, and the state in which the space between them is airtightly closed is maintained.

Further, when the non-combustible sheet 31 may be thermally contracted by fire heat such as hot air, the non-combustible sheet 31 may be shrunk in accordance with the amount of heat contraction of the non-combustible sheet 31.
Then, the floor blocker 36 of the non-combustible landing body 33 and the pair of non-combustible end sheets 47 are pulled up in accordance with the heat shrinkage of the non-combustible sheet body 31, respectively.

Then, the landing section 35 of the floor blocker 36 is
From the state of elastic deformation to a flat shape with a large contact surface with the non-combustible sheet body 31, it deforms upward in accordance with the heat shrinkage of the non-combustible sheet body 31. Even when the contact surface of the floor surface is slightly reduced, the space between the floor surface 30 and the floor surface 30 is kept airtightly closed at the landing section 35 of the floor surface closing body 36, and the pair of non-combustible end sheets 47 The floor 30 is slid in the direction of approaching to the floor 30 so that the space between the floor 30 and the floor 30 is kept airtight, and hot air or the like is reliably prevented from flowing out from between them.

Therefore, in a state where the shielded portion 16 is shielded by the non-combustible sheet member 31 and the non-combustible landing member 33, the non-combustible sheet member 31 and the non-combustible landing member 33 receive wind pressure such as hot air. The non-combustible sheet body 31 and the non-combustible landing body 33
As a result, the shielded portion 16 is securely shielded entirely, and the outflow of hot air or the like from one side of the shielded portion 16 to the other side is prevented, and the spread of smoke and the spread of fire during a fire are prevented.

Next, the third embodiment shown in FIGS. 14 and 15 is different from the first and second embodiments in that the non-combustible landing body 33 is provided on the floor 30 at the lower part. A floor blocker 36 having a hollow landing section 51 for landing is provided.

In this case, the hollow landing section 51 squeezes the intermediate portion in the vertical direction of the hollow body 38 of the floor surface closing body 36 from both sides, and the narrowed section 52 is sewn with a non-combustible sewing thread. To form a hollow cylindrical shape. And
When the hollow landing section 51 is pressed from above on the floor surface 30 during landing, the hollow landing section 51 deforms flat and land.

The other structure is the same as that of the first embodiment and the second embodiment. Therefore, the same structure as the first embodiment and the second embodiment is the same as that of the first embodiment and the second embodiment. The reference numerals used in the first embodiment and the second embodiment are entered, and the description thereof is omitted.

Next, when assembling the non-combustible landing body 33, the non-combustible landing body 33 is easily assembled in the same procedure as in the second embodiment.

With such a configuration, the hollow landing portion 51 of the floor blocker 36 is landed on the floor surface 30 and deformed, and the hollow landing portion 51 is expanded on both sides of the weight 41. The lower end portions of the landing sections 50 of the pair of non-combustible end sheets 47 are respectively landed on the floor surface 30 by being pushed downward at the lower ends of the open plate sections 40, and the pair of non-combustible end sheets 47 are The lower end of the landing portion 50 is deformed while sliding along the floor surface 30 and separated from each other in the opposite directions to be expanded.

Then, the hollow landing portion 51 of the floor surface closing member 36 is deformed into a flat shape with a large contact surface with the floor surface 30 and is closely attached to the floor surface 30. The upper part is pressed by the lower ends of both the expanding plates 40 of the weight body 41, and the landing portions 50 of the pair of non-combustible end sheets 47 are deformed and separated from each other in the opposite directions and expanded. The floor blocker 36 and a pair of non-combustible end sheets 47
Thus, the space between the lower end of the noncombustible sheet body 31 and the floor surface 30 is further airtightly closed. Therefore, the airtightness and fire resistance are further improved as a whole.

Next, the fourth embodiment shown in FIG. 16 is different from the second and third embodiments in that the upper end of the expanding plate portion 40 on both sides of the weight body 41, that is, Insertion protrusions 54 formed by round bars 53 are protruded outward at both end portions of the continuous portion of the two expanding plate portions 40, respectively, and these insertion protrusions 54 are inserted into the insertion openings 17 of the left and right guide rails 15. , Which are inserted to be able to move up and down respectively.

In this case, the insertion projecting portion 54 is
May be integrally protruded outwardly in opposite directions from each other at both end portions of the continuous portion, and a round bar 53 is formed along the mountain-shaped recess in the mountain-shaped recess on the lower surface of the continuous portion of the two expanding plate portions 40. It is inserted and fixed integrally, and both side ends of the round bar 53 are projected as insertion projections 54 on both side ends of the continuous portion of the two expanding plate portions 40 so as to project outward in opposite directions. Is also good.

The other structures are the same as those in the above-described embodiments. Therefore, the same structures as those in the above-described embodiments are denoted by the same reference numerals as those used in the above-described embodiments, and description thereof is omitted.

With this configuration, the non-combustible sheet body 31 is lowered along the insertion openings 17 of the left and right guide rails 15 and the weight 41 at the lower end is inserted into the insertion projections at both side ends. At 54, it is lowered along the insertion opening 17 of the left and right guide rails 15.

In each of the above embodiments, the case where the fixing screw 43 is used as the fixture has been described. However, the present invention is not limited to this. A rivet or the like to be inserted into the device may be used.

[0085]

According to the first aspect of the present invention, the non-combustible landing body is formed at the lower end of the non-combustible sheet member and is inserted into the insertion openings of the guide rails on both sides at both ends so as to be able to move up and down. A hollow floor surface closing body having an insertion portion and a floor portion that deforms into a flat shape when landing on the floor and has a lower portion landing on the floor surface,
An expanding plate fixed to the upper portion of the floor blocker and having insertion protrusions at both end portions inserted into the insertion openings of the guide rails on both sides so as to be able to move up and down, and expanding the upper portion of the floor blocker on both sides. And the weight of the non-combustible landing body, each of which has a smaller number of parts and is simpler than those having a flat plate-shaped body, a pair of support plates and a pair of non-combustible end sheets. Therefore, the number of assembling work steps can be reduced, and the cost can be reduced as a whole.

Further, when the floor blocker of the non-combustible flooring body is landed on the floor surface by descending the non-combustible sheet member, the landing section of the floor blocker closes the contact surface with the floor surface. The floor is deformed in a flattened state in the enlarged state, and the floor is closed, and the lower end of the noncombustible sheet body and the floor surface can be reliably airtightly closed by the floor closing body having the deformed flooring portion.

At this time, the floor blocker is expanded downward by the expanding plates on both sides of the weight body, so that the landing section of the floor blocker touches the floor. In this case, the landing portion of the floor blocker can be deformed into a flat shape with a large contact surface with the floor surface, so that the floor can be securely adhered to the floor surface. Further, when the landing portion is deformed into a flat shape and the floor is landed, the insertion portions at both end portions of the floor blocker having the landing portion are deformed in the insertion holes of the guide rails on both side portions. Can be surely brought into close contact with the opening edge portion.

Therefore, when the landing portion of the floor covering is landed on the floor surface of the shielded portion, the non-combustible flooring and the non-combustible sheet having the floor covering form the covered portion. It is possible to reliably and airtightly shield, and when the shielded portion is shielded, the non-combustible sheet and the non-combustible landing body can improve the airtightness and fire resistance of the shielded portion as a whole, and one side of the shielded portion. To the other side, thereby preventing the outflow of hot air and the like, and preventing the diffusion and spread of smoke such as hot air.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the floor surface closing body is formed by a hollow body, and the hollow body is formed by narrowing the hollow body at the lower portion from both sides. When the non-combustible sheet body descends, the hollow landing section of the non-combustible landing body closes on the floor surface because it has a hollow floor section that flatly deforms when landing on the floor. By being floored, the hollow landing portion of this floor surface obstruction body is deformed into a flat shape with a large contact surface with the floor surface, and is further closely attached to the floor surface,
With the floor closed body having the deformed hollow landing section, the space between the lower end of the non-combustible sheet member and the floor can be more reliably airtightly closed.

According to the third aspect of the present invention, in addition to the effect of the first aspect, the weight body has an expanding plate portion which is formed to be integrally formed by expanding downward on both sides. The floor blocker can be reliably expanded downward by the expanding plates on both sides of the weight body, and when the floor of the floor blocker touches the floor, the floor blockage occurs. The landing section of the body can be securely deformed into a flat shape with a large contact surface with the floor surface, and can be in close contact with the floor surface. In addition, since the weight body has the expanding plate portion formed integrally, the weight body can be easily inserted into the floor surface obstruction and fixed to the upper portion of the floor surface obstruction.

According to the fourth aspect of the present invention, in addition to the effect of the first aspect, the non-combustible landing body is fixed to the expanding plate portions on both sides of the weight body via the upper portion of the floor surface closing body. And a pair of vertically non-combustible end sheets which are separated from each other in the opposite direction when landing on the floor surface, so that the non-combustible landing body has a flat plate-shaped body and a pair of support plates. The number of parts is small and the configuration is simple as compared with the product, so that the number of assembling work steps can be reduced and the cost as a whole can be reduced.

Further, the landing portion of the floor covering of the non-combustible flooring body is landed on the floor surface by the descending of the non-combustible sheet member, so that the landing part of the floor covering of the floor closing surface is in contact with the floor surface. The contact surface is deformed into a flat shape with a large contact surface and is closely attached to the floor surface, and the lower end portions of the pair of nonflammable end sheets are landed on the floor surface, and the lower end portions of the pair of nonflammable end sheets are It can be deformed into a state of being spread apart from each other in a direction opposite to each other, and can adhere to the floor surface. Therefore, the shielded part can be reliably airtightly shielded by the non-combustible flooring body and the non-combustible sheet body having the floor blocker and the pair of non-combustible end sheets.

Further, in a state where the shielded portion is shielded by the non-combustible landing body and the non-combustible sheet body, the pair of non-combustible end sheets of the non-combustible sheet body and the non-combustible landing body reduce the pressure of hot air or the like. When pressed from one side to the other side,
While the non-combustible sheet body slightly flexes in the pressing direction, the floor is flexed toward the floor-closing body on the other non-combustible end sheet side while the non-combustible end sheet on one side remains on the lower end. It is slid along the surface.

Therefore, even if the non-combustible sheet body and the pair of non-combustible end sheets receive pressure from either one of the surfaces or the other surface, the pair of non-combustible end sheets are slid in a state of landing on the floor. A pair of non-combustible end sheets can supplement the airtightness of the floor blocker that has landed on the floor, and the pair of non-combustible end sheets and the floor block block as a whole more securely seal between the floor and the floor. The airtightness between them can be further improved.

According to the invention of claim 5, in addition to the effect of the invention of claim 4, in addition to the pair of non-combustible end sheets, the expanding plates on both sides of the weight body from the upper end of the pair of non-combustible end sheets. Since the fixtures are fixed with the fixtures respectively inserted into the parts, the fixtures are inserted from the outer surfaces of the upper ends of the pair of non-combustible end sheets to the expanding plate portions on both sides of the weight body, whereby the weight of the weight body is reduced. The upper end portions of the pair of nonflammable end sheets can be easily fixed to the expanding plate portions on both sides. At this time, it is not necessary to perform the tightening operation from both sides with the bolts and nuts, and only the operation of inserting the fixing tool from one side of the outer surface of the upper end portion of the non-combustible end sheet can be performed, and these assembling operations can be easily performed. it can.

[Brief description of the drawings]

FIG. 1 is a side view of a fire-resistant screen device according to a first embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a perspective view partially omitted from the above.

FIG. 4 is a side view showing an assembled state of the incombustible landing body according to the first embodiment.

FIG. 5 is a plan view of the non-combustible landing body, a part of which is omitted in FIG.

FIG. 6 is a side view of the incombustible landing body at the time of descending.

FIG. 7 is a side view of the incombustible landing body at the time of landing.

FIG. 8 is a side view of a refractory screen device showing a second embodiment.

FIG. 9 is a perspective view with a part of the same being omitted.

FIG. 10 is a side view showing an assembled state of the incombustible landing body according to the first embodiment.

FIG. 11 is a plan view of the non-combustible landing body, a part of which is omitted.

FIG. 12 is a side view of the incombustible flooring body when it is lowered.

FIG. 13 is a side view of the incombustible landing body at the time of landing.

FIG. 14 is a side view of a non-combustible landing body according to a third embodiment.

FIG. 15 is a side view of the incombustible landing body at the time of landing.

FIG. 16 is a perspective view in which a part of a fireproof screen device according to a fourth embodiment is omitted.

FIG. 17 is a side view of a non-combustible landing body showing the prior art.

FIG. 18 is a side view of the incombustible landing body at the time of landing.

[Explanation of symbols]

 15 Guide rail 16 Shielded part 17 Insertion port 30 Floor 31 Non-combustible sheet body 32, 34 Insertion part 33 Non-combustible flooring body 35 Landing part 36 Floor blockage body 38 Hollow body 39, 54 Insertion protrusion 40 Expansion plate Part 41 Weight body 43 Fixture 47 Non-combustible end sheet 51 Hollow landing part

Claims (5)

[Claims] 1. A guide rail which is fixed to both sides of a shielded portion and faces each other and has an insertion opening formed in a vertical direction, and both side ends in the width direction are inserted into the insertion openings of the guide rails on both sides. A non-combustible sheet body that is inserted and raised and lowered to shield the shielded part when descending, and a non-combustible landing body provided at a lower end of the non-combustible sheet body and landing on the floor surface of the shielded part And a body, wherein the non-combustible landing body has an insertion portion formed at a lower end portion of the non-combustible sheet body and inserted at both end portions into the insertion openings of the guide rails at the both side portions so as to be vertically movable. A hollow floor surface closing body having a lower portion that is deformed into a flat shape when landing on the floor surface and landed on the floor surface; and Insertion protrusions inserted into the guide rail insertion openings so that they can move up and down And a weight body having, on both surface portions, an expanding plate portion for expanding the floor surface closing body upward and downward, respectively. 2. The floor closing body is formed as a hollow body, and the hollow body is formed by narrowing the hollow body from both sides at a lower portion, and is deformed into a flat shape when landing on the floor surface to land on the floor surface. The fireproof screen device according to claim 1, further comprising a landing portion. 3. The fire-resistant screen device according to claim 1, wherein the weight body has an expanding plate portion which is integrally formed by expanding downward on both sides. 4. The non-combustible landing body is fixed to the expanding plate portions on both sides of the weight body via the upper portion of the floor surface closing body, and separates from each other in the opposite direction when landing on the floor surface. The refractory screen device according to claim 1, further comprising a pair of vertically incombustible end sheets that are floored. 5. The pair of non-combustible end sheets are fixed by fixing tools respectively inserted from upper end portions of the pair of non-combustible end sheets to the expanding plates on both sides of the weight body. The refractory screen device according to claim 4, wherein