JPH1122340A - Sheet for sheet shutter and sheet shutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shield a part to be shielded without utilizing a guide rail and secure airtightness among the wall face of the part to be shielded, a floor face and a ceiling part. SOLUTION: A sheet body 27 shielding a part to be shielded 1 is provided. The sheet body 27 is provided with a sheet body 29, a pair of deformable wall face contact pieces 30 provided on both the side ends of the width direction of the sheet body 29 and separated from and abutted on the wall face 2 of the part to be shielded in the mutually contrary direction at the time of shielding of the part to be shielded 1, and a pair of deformable floor face contact pieces 31 separated from and abutted on the floor face 4 of the part to be shielded 1 in the mutually contrary direction at the time of shielding of the part to be shielded 1. A deformable weight body 32 positioned between the pair of the floor face contact pieces 31, provided on the lower end of the sheet body 29, put on the floor face 4 of the part to be shielded 1 at the time of shielding of the part to be shielded 1 and separating the pair of the floor face contact pieces 31 in the mutually contrary direction is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat shutter seat and a seat shutter device, for example, a partition for shielding a doorway of a building, especially a factory or the like, to prevent wind and dust from entering the inside of the factory. Also, the present invention relates to a sheet for a fireproof sheet shutter for shielding a predetermined position in a building as a fire prevention section to prevent the spread and spread of smoke in the event of a fire, and a sheet shutter device using the sheet.

[0002]

2. Description of the Related Art Conventionally, as a seat shutter device of this type, for example, a guide rail fixed to both sides and opposed to each other and having an insertion opening formed in a vertical direction, and an upper portion between the guide rails on both sides are provided. A winding drum rotatably provided on the winding drum; and a winding drum which is rewound freely around the winding drum. A sheet body which is rewound down and shields between the guide rails on both sides,
At the lower end of the sheet member, there is a weight member which is provided on the floor between the guide rails on both sides of the sheet member.

[0003]

In the above conventional seat shutter device, a guide rail for guiding the sheet member is required regardless of whether the sheet member is used for partitioning or fire prevention. It is necessary to embed the guide rails on the opposing wall surfaces, respectively, and the embedding of the guide rails requires a lot of trouble, and there is a problem that the appearance of the wall surface is easily impaired after the guide rails are embedded.

[0004] In addition, when the sheet is provided between the guide rails on both sides so as to be able to move up and down, both ends in the width direction of the sheet are moved from the end plates of the guide rails on both sides to smoothly lower the sheet. When the sheet body shields the guide rails on both sides, the airtightness between the guide rails on both sides and both ends in the width direction of the sheet body is impaired, and these If the both ends in the width direction of the sheet are made to approach the end plates of the guide rails on both sides in order to enhance the airtightness between the sheets, the sheet tends to be unable to move up and down smoothly when the sheet is raised and lowered. There's a problem.

Further, when the shield is shielded as a fire protection section, the sheet body thermally contracts due to hot air or the like at the time of a fire, and the airtightness between both side edges in the width direction of the sheet body and the guide rails on both sides. However, there is a problem that the airtightness is easily deteriorated, and it is difficult to secure airtightness as a fire prevention section for preventing the spread and spread of smoke in the sheet body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is possible to shield a shielded part without using a guide rail. It is an object of the present invention to provide a sheet for a seat shutter capable of ensuring airtightness between a floor surface and a ceiling portion of a shielded portion, and a seat shutter device using the sheet. .

[0007]

According to a first aspect of the present invention, there is provided a seat shutter sheet provided with a sheet member for shielding a portion to be shielded, wherein the sheet member includes a sheet body and both side ends in a width direction of the sheet body. And a pair of deformable wall contact pieces which are provided along with each other and approach each other at the time of winding and come into contact with the opposite wall of the shielded part in the opposite direction when shielding the shielded part, and the sheet body A pair of deformable floor contacting pieces which are respectively provided at the lower end portions thereof, approach at the time of winding, and separate from each other and abut against the floor surface of the shielded part in the opposite direction when the shielded part is shielded. It is located at a lower end of the seat body between the pair of floor contacting pieces and is placed on the floor of the shielded part when the shielded part is shielded, and the pair of floor contacting pieces are mutually attached. And a deformable weight that separates in the opposite direction. It is intended.

When the shielded portion is shielded by the sheet member, a pair of wall contact pieces at both side ends in the width direction of the sheet member are separated from each other on the opposite wall surface of the shielded portion. While being abutted in the open state, a pair of floor abutting pieces at the lower end of the sheet body are separated from each other by the weight body that has been expanded and deformed by landing on the floor surface of the shielded part. It is abutted in the open state.

That is, of the pair of wall contact pieces and the pair of floor contact pieces, one of the wall contact pieces is opened toward one of the front and rear directions of the sheet member that shields the shielded portion, and is attached to the wall surface. At the same time, the one floor contacting piece is opened toward one side in the front-rear direction of the sheet body shielding the shielded portion, and is brought into contact with the floor to land. Also, the other wall contact piece is opened toward the other side in the front-rear direction of the sheet body that shields the shielded portion and is in contact with the wall surface, and the other floor contact piece shields the shielded portion. The sheet is opened toward the other side in the front-rear direction of the sheet member and is brought into contact with the floor surface to land.

Therefore, the space between the both ends in the width direction of the sheet member and the opposing wall surface of the shielded portion is sufficiently closed by the pair of wall contact pieces, and the pair of floor contact pieces is used. Since the space between the lower end portion of the sheet member and the floor surface of the shielded portion is sufficiently closed, airtightness therebetween is sufficiently ensured.

[0011] Even if the sheet, which shields the shielded portion, is blown by receiving wind pressure from either one of the front and rear directions, these wall contact pieces are used to separate the space between the opposite wall and the floor. A gap through which the wind or the like flows in and out of the shielded portion between the surface contact piece and the floor surface of the shielded portion is continuously closed without opening, and airtightness therebetween is ensured.

Further, even if the sheet body shielding the shielded portion is thermally contracted by hot air or the like, the sheet body is separated from the opposite wall surfaces of the shielded portion in a direction opposite to each other and abuts against each other. Having a pair of floor contacting pieces which are separated from each other in the opposite direction and abut on the floor surface of the wall contacting piece and the floor surface of the shielded portion in an open state, so that the sheet When the sheet thermally contracts in the width direction, the pair of wall contact pieces slide along the wall surface, and when the sheet body thermally contracts in the vertical direction, the pair of floor contact pieces slide along the floor surface. Therefore, a gap through which hot air flows in and out between the wall contacting piece and the opposite wall surface of the shielded portion and the floor contacting piece and the floor of the shielded portion does not open. Continue to be blocked,
Airtightness between them is ensured.

According to a second aspect of the present invention, there is provided the seat shutter sheet according to the first aspect, wherein the seat body is mounted on the ceiling board of the shielded portion when the shielded portion is shielded by the seat body. It has a closing body that closes the formed sheet guide port.

When the shielded portion is shielded by the sheet member, the sheet guide opening formed in the ceiling board of the shielded portion is closed by the closing member of the sheet member, and wind or the like flows out between them. The airtightness is ensured without opening the gap to enter.

Therefore, the shielded portion is shielded by the sheet member, so that the lower end portion of the sheet member and the floor of the shielded portion are located between the both side ends of the sheet member and the wall surface facing the shielded portion. The airtightness between the surface and the vicinity of the upper end of the sheet member and the guide port of the ceiling board of the shielded portion are sufficiently ensured.

According to a third aspect of the present invention, there is provided the seat shutter sheet according to the first aspect, wherein the weight body is provided at the lower end of the seat body along the lower end of the seat body. And a fluid sealed in the bag-like body and deforming the bag-like body.

Then, the lower end of the weight-shaped bag-like body lands on the floor surface of the shielded part, and the fluid in the bag-like body collapses from a predetermined form and is deformed. The bag is expanded and deformed in the front-rear direction, and the pair of floor contact pieces at the lower end of the sheet body are separated from each other in opposite directions and contact the floor with the bag in an open state.

Therefore, the lower end portion of the sheet body and the floor surface are separated by a pair of floor surface contacting pieces which are separated from each other in the opposite directions and abut against the weight of the weight body fluid and the floor surface. The airtightness between them is ensured.

The seat shutter device according to claim 4 is
4. A winding drum rotatably provided above the ceiling board of the shielded portion, and the sheet body according to any one of claims 1 to 3, wound around the winding drum so as to be rewound freely. A pair of wall contact pieces provided at both ends in the width direction of the sheet body when the sheet body is rewound and lowered, and are provided below the both ends of the winding drum. And a contact piece separation guide.

When the take-up drum is driven and rotated in the direction of rewinding the sheet body, the sheet body is rewound from the peripheral surface of the take-up drum, and both end portions in the width direction of the sheet body. The pair of wall contact pieces are separated from each other in opposite directions by a contact piece separation guide, and the pair of wall contact pieces on both side ends of the sheet body are opposed to each other. Contact each other.

Further, by sequentially rewinding the sheet body from the peripheral surface of the winding drum, the sheet body is opposed to the shielded portion with the pair of wall contact pieces at both side ends being open. It comes into contact with the wall surface and slides down sequentially along the wall surface facing the shielded portion.

Further, when the weight at the lower end of the sheet is brought into contact with the floor surface of the shielded portion and the sheet is further lowered, the weight is combined with the weight of the sheet. Is expanded and deformed in the front-rear direction, and is landed. With this deformed weight, a pair of floor contact pieces at the lower end of the sheet body are separated in opposite directions, and the pair of floor contact pieces are In the open state, they are brought into contact with the floor surface, respectively.

Therefore, the gap between the both ends in the width direction of the sheet member and the opposing wall surface of the shielded portion is sufficiently closed by the pair of wall contact pieces, and the pair of floor contact pieces is provided. The gap between the lower end portion of the sheet body and the floor surface of the shielded portion is sufficiently closed, and the closed body between the vicinity of the upper end of the sheet body and the sheet guide port of the ceiling board of the shielded portion. Since the gap between them is sufficiently closed, airtightness between them is sufficiently ensured.

[0024] Even if the sheet, which shields the shielded portion, is blown by receiving wind pressure from either one of the front and rear directions, the wall abutting pieces can be used to move the sheet between the opposing wall surfaces of the shielded portion.
And the gap between the wind and the like flowing in and out of the shielded part between the floor surface of the shielded part and the ceiling part of the shielded part is continuously closed without opening. The airtightness between them is ensured.

Further, even if the sheet body which shields the shielded portion is thermally contracted by hot air or the like, the sheet body is separated from the opposite wall surfaces of the shielded portion in a direction opposite to each other and abutted in a state of being opened. Having a pair of floor contacting pieces which are separated from each other in the opposite direction and abut on the floor surface of the wall contacting piece and the floor surface of the shielded portion in an open state, so that the sheet When the sheet thermally contracts in the width direction, the pair of wall contact pieces slide along the wall surface, and when the sheet body thermally contracts in the vertical direction, the pair of floor contact pieces slide along the floor surface. I do.

Therefore, a gap through which hot air flows in and out between the pair of wall contact pieces and the opposite wall surface of the shielded portion and between the pair of floor contact pieces and the floor surface of the shielded portion. Are continuously closed without opening, and airtightness therebetween is ensured.

The seat shutter device according to claim 5 is
In the seat shutter device according to claim 4, the opposing wall surface of the shielded portion has a smooth surface in the vertical direction in which a pair of wall contact pieces separated from each other at opposite side ends of the sheet member in the width direction come into contact with each other. Have each.

Then, a pair of wall contact pieces at both side ends of the sheet body are abutted on the opposing smooth surfaces of the shielded portion, respectively, while the sheet body is opened. The contact pieces are smoothly slid down sequentially along opposing smooth surfaces in the opened state.

Further, when the shielded portion is shielded by the sheet member, the sheet member comes into close contact with the opposing smooth surfaces in a state where the pair of wall contact pieces at both side ends are opened, and airtightness therebetween is provided. In addition to ensuring the airtightness, the pair of floor contacting pieces at the lower end of the sheet body are opened, and the landing is performed in a state where airtightness is maintained. You.

[0030]

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

Reference numeral 1 denotes a shielded portion such as an entrance or exit of a factory or the like, an emergency exit, or a fire protection section in a building. The shielded portion 1 has vertical wall surfaces 2 facing left and right, respectively. 2, a smooth plate 3 having a vertical smooth surface 3a formed of a metal plate, a synthetic resin plate, or the like is integrally embedded and fixed. Further, the shielded portion 1 has a floor surface 4 between the lower ends of the opposing smooth plates 3. In addition, as long as the opposing wall surface 2 is sufficiently smooth and durable,
The wall surface 2 itself may be used as a smooth surface.

The shielded portion 1 is located above the floor surface 4 and a ceiling board 5 is fixed horizontally. The ceiling board 5 communicates with the opposing smooth plate 3 and the floor board 4 A sheet guide port 6 is formed to face and open.

A frame 7 is fixed above the ceiling board 5, and vertical brackets 8 are integrally fixed to the left and right sides of the frame 7, respectively. Rotating shaft 10 in the left-right direction via bearing body 9
Is rotatably mounted on a shaft.
A shaft-shaped take-up drum 11 for rewinding a sheet body to be described later, which shields the sheet body, is integrally fixed.

Further, the rotating shaft 10 is connected to a rotating driving means (not shown) for rotating the rotating shaft 10 in a reversible direction. The rotating drum 10 drives and rotates the winding drum 11 in a direction in which a sheet body to be described later is wound and a direction in which the sheet body is rewound.

Next, at the time of rewinding the sheet member to be described later on the left and right brackets 8 located below the both end portions of the winding drum 11, a pair of wall contact pieces (described later) at both side ends of the sheet member. Are separated from each other in opposite directions, and the abutment piece separation guides 12 that expand are fixed.

The left and right abutting piece separation guides 12 are substantially mountain-shaped front and rear separation swash plate sections 13 formed to incline downward from the upper end, and front and rear separation swash plate sections 13. Front and rear separating plate portions 14 formed substantially in a vertical shape continuously to the lower end portion of
And the front and rear separating swash plate portions 13 and the front and rear separating plate portions 14 are formed so as to gradually expand and incline toward the wall surface 2 from the inner end.

Further, a pair of wall contact pieces, which will be described later, which are located outside the left and right contact piece separation guides 12 and which are opened to the left and right brackets 8 when the later-described sheet body is wound up, are joined in the joining direction. Correction guides 15 for narrowing and correcting the bending habit are fixed respectively.

The right and left straightening guides 15 are provided with front and rear guide plate portions 16 arranged at intervals on the front and rear separation plate portions 14, respectively, and inwardly upward from the upper ends of the front and rear guide plate portions 16. The front and rear separation swash plate portions formed to be inclined toward the front
The front and rear straightening plate portions 17 arranged at an interval with respect to 13, and the upper and lower separating swash plate portions 13 formed between the upper end portions of the front and rear straightening plate portions 17 have openings. And a contact piece guide port 18 formed.

Next, a lintel 19 is attached along the opening edge of the sheet guide opening 6 of the ceiling board 5.
The lintels 19 are respectively fitted with fitting portions 20 fitted to and opposed to the opposite opening edges of the sheet guide opening 6.
Has a lintel material 21 formed with a

The lintel material 21 is formed above the fitting portion 20 with a receiving frame portion 23 having a receiving recess 22 which is projected above the sheet guide opening 6 and has an opening on the opposite surface. A guide plate portion 25 protruding upward from an upper end portion of an opening edge portion of the frame portion 23 and forming a guide port 24;
Upper and lower opening edges of 22 are formed as sealing edges 26, respectively.

Next, the upper end of a sheet 27 for shielding the shielded portion 1 is fixed to the winding drum 11, and is wound so as to be rewound freely. The sheet body 27 does not need to be particularly nonflammable in the case of partitioning the shielded part 1, that is, the entrance of a factory or the like, but is formed of a nonflammable fireproof sheet body 28 which is hardly flammable in the case of fire prevention. . The non-combustible refractory sheet 28 is made of, for example, a non-combustible fabric such as glass cloth or silica cloth.

The sheet body 27 is made of (the non-combustible refractory sheet body 2).
8) is a predetermined width slightly shorter than the distance between the opposing smooth plates 3 of the shielded portion 1 when the shielded portion 1 is unwound from the winding drum 11, and the floor surface 4 and the ceiling of the shielded portion 1 It has a sheet body 29 formed with a length greater than the distance between the board and the board 5.

The sheet main body 29 is integrally fixed by sewing or the like along the front and rear surfaces of both side ends in the width direction of the sheet main body 29, and is separated in opposite directions with the outer end being a free end. And has a pair of deformable wall contact pieces 30 which are expanded and expanded to contact the smooth plate 3 facing the shielded portion 1 in an airtight manner. The width of the sheet body 27 formed by the sheet body 29 and the pair of wall contact pieces 30 at both side ends of the sheet body 29 is larger than the interval between the opposing smooth plates 3 of the shielded portion 1. It is formed with a slightly larger width.

The seat body 29 is integrally fixed along the front and rear surfaces of the lower end of the seat body 29 by sewing or the like, and separates and expands in opposite directions with the lower end as a free end. And a pair of deformable floor contacting pieces 31 that contact the floor 4 of the shielded part 1 in an airtight manner.

The pair of wall contact pieces 30 and the pair of floor contact pieces 31 approach each other during winding. Further, the pair of wall contact pieces 30 and the pair of floor contact pieces 31 are formed of the same material as the non-combustible refractory sheet 28.

The shielded portion 1 is located between the pair of floor contacting pieces 31 and is fixed to the lower end of the seat body 29.
And a pair of deformable weights 32 that land on the floor surface 4 and separate the pair of floor contact pieces 31 from each other in the opposite direction and expand the weight.

The weight 32 is formed of the pair of floor contact pieces 31.
A deformable bag 33 having an upper end integrally sealed along a lower end of the sheet main body 29 at a lower end of the sheet main body 29 and a sealed lower end of the bag main body 29. Fluid 34
And is formed. The fluid 34 is made of, for example, a liquid such as water, spherical metal particles, sand particles, or the like. The fluid 34 collapses from a predetermined shape and deforms when the bag 33 is landed, and the bag 33 is removed from the bag 33.
In the width direction (the front-back direction of the shielded portion 1), and the pair of floor contacting pieces 31 are separated from each other in the opposite direction and expanded so that the floor contacting the floor 4 is airtight. ing.

Further, the seat body 29 is provided with the weight body.
When the seat 32 is landed and the shielded part 1 is shielded by the seat body 29, the seat guide opening 6 of the ceiling board 5 is closed by airtightly contacting the upper and lower seal edges 26 of the lintel 19. The main body 29 has a closing body 35 in the width direction. The closing body 35 is formed by a lintel seal 36 which comes into contact with the upper and lower seal edges 26 of the lintel 19 in an airtight manner.

The lintel seal 36 is attached to the seat body 29.
It has a pair of elastically deformable sealing members 37 having resilience disposed on both sides of the front and back surfaces of the pair of sealing members 37, respectively. These intermediate parts are fixed to the seat body 29.
The lower ends are integrally fixed to the front and back surfaces of the seat body 29, respectively, in a state of protruding in opposite directions with respect to the center and curved in an arc shape.

The curved intermediate portion of the pair of sealing members 37 is accommodated in the accommodating recess 22 of the lintel 19, and the sealing portion is in airtight contact with the upper and lower sealing edges 26 of the lintel 19. It is formed as 38. The seal portions 38 on both surfaces are formed to have a diameter larger than the diameter of the guide port 24 of the lintel 19, but when the ridge 19 is accommodated in the accommodating recess 22 of the lintel 19, it is flat. Elastically deformed into a guideway
From the accommodation recess 22, it is housed in the accommodation recess 22, restored by elasticity in the accommodation recess 22, protrudes in opposite directions, and comes into air-tight contact with the upper and lower seal edges 26.

When the sheet 27 is formed of a non-combustible refractory sheet 28, the sheet body 29, the pair of wall contact pieces 30, the pair of floor contact pieces 31, and the closing body 35 It is formed to be deformable by a non-combustible member. When the non-combustible refractory sheet 28 is wound around the winding drum 11, the lower end portions of the pair of wall contact pieces 30 are engaged with the contact piece separation guide 12 to prepare for rewinding.

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

In the case where the shielded portion 1 is closed, when the winding drum 11 is driven to rotate in the direction of rewinding the sheet 27 by the rotating shaft 10 rotated by the rotary driving means, the winding drum is rotated. The sheet body 27 is rewound down from the peripheral surface of the sheet 11, and the pair of wall contact pieces 30 at both side ends in the width direction of the sheet body 27 are brought into contact with the contact piece separation guides 12 on both sides.
The sheet is separated from each other in the opposite direction
The pair of wall contact pieces 30 at both side ends of the 27 are curvedly opened in a substantially arc shape, and are air-tightly contacted with the opposing wall 2, that is, the smooth plate 3 of the shielded part 1.

That is, in a state where the pair of wall contact pieces 30 on both side ends in the width direction of the sheet body 27 are close to each other, the contact pieces on both sides are separated from the contact piece guide ports 18 of the correction guide 15 on both sides. When being lowered to the guide 12, the pair of wall contact pieces 30 at both end portions are sequentially separated front and rear by the front and rear separation swash plate portions 13 of the mountain-shaped contact piece separation guide 12 on both side portions. While being lowered, a pair of wall contact pieces 30 at both end portions are opposite to each other at the separation plate section 14 before and after the contact piece separation guide 12 that is continuous with the lower end of the separation swash plate section 13 before and after. Each of them is separated greatly and descends.

Then, the pair of wall contact pieces 30 on both side ends of the sheet body 27 are respectively bent in opposite directions to open in a substantially arc shape, and the shielded portion 1 is opened from the sheet guide opening 6 of the ceiling board 5. Are air-tightly contacted with the opposing wall surface 2, that is, the smooth plate 3.

Further, the sheet body 27 extends from the peripheral surface of the winding drum 11.
Are successively rewound so that the sheet body 27 comes into contact with the wall surface 2 (smooth plate 3) of the shielded portion 1 while the pair of wall contacting pieces 30 at both side ends remain open. The shields 1 are sequentially slid down along the opposing wall surfaces 2.

At this time, the pair of wall contact pieces 30 on both side ends of the sheet 27 are respectively slid smoothly along the smooth wall 2 (smooth plate 3) of the shielded portion 1 in a state of being opened. By being lowered, the sheet body 27 is smoothly slid down sequentially as a whole.

A weight 32 at the lower end of the sheet 27
Is brought into contact with the floor surface 4 of the shielded portion 1, and when the sheet 27 is further lowered, the weight 32 together with the weight of the sheet 27 causes the width of the shielded portion 1 in the front-rear direction. The pair of floor contact pieces 31 at the lower end of the sheet 27 are separated in opposite directions by the deformed weight 32, and the pair of floor contact pieces are separated. Each of the bases 31 abuts on the floor surface 4 in an opened state to be air-tightly landed.

That is, the weight 32 is a fluid in the bag 33.
When the weight 32 is lowered, the bag-shaped body 33 having the fluid 34 is lowered in a state where the thickness thereof is relatively thin and deformed in the front-rear direction. The surface contact piece 31 is lowered along the weight 32 without greatly opening.

The lower end of the bag-shaped body 33 of the weight 32 is landed on the floor surface 4 of the shielded part 1 and supported by the floor surface 4 so that the bag-shaped body 33 is slackened in the front-rear direction. The fluid 34 in the bag 33 is deformed by being collapsed from a predetermined form, and the bag 33 is greatly enlarged and deformed in the front-rear direction and is landed on the fluid 34, and the bag 33 is The pair of floor contacting pieces 31 at the lower end of the sheet body 27 are separated from each other in the opposite directions and come into contact with the floor 4 in a widely opened state to be airtightly landed.

That is, the fluid 34 is a spherical metal particle,
In the case of sand particles, when the weight cone 32 descends, the spherical metal particles, the sand particles, etc., overlap in the vertical direction, and the bag-like body 33 has a small thickness in the front-rear direction, and is lowered in a flat deformed state. , A flat bag-like body without the pair of floor contact members 31 opening greatly
It descends in a state of hanging down along 33.

Then, the lower end of the bag 33 is landed on the floor surface 4 and supported by the floor 4 so that the bag 33 is slackened in the front-rear direction. The shape, sand particles, etc. collapse and deform from the state of overlapping in the vertical direction, and the spherical metal particles, sand particles, etc., cause the bag-like body 33 to be greatly expanded and deformed in the front-rear direction and landed. Bag 33
At this time, the pair of floor contacting pieces 31 are separated from each other in the opposite directions and landed in a greatly opened state.

Further, when the pair of floor contacting pieces 31 at the lower end of the sheet 27 are separated from each other in the opposite directions and curved and opened in a substantially arc shape, the floor 27 is air-tightly placed on the floor 4. The lower ends of a pair of wall contacting pieces 30 that are separated from each other at opposite ends of the sheet body 27 in opposite directions, are curved and open in a substantially arc shape, respectively, come into contact with the floor surface 4 and are air-tightly landed. At the same time, the pair of wall contacting pieces 30 at both end portions are separated from each other in the opposite directions and abut on the opposing smooth wall surface 2 (smooth plate 3) of the shielded portion 1 in an open state to be airtight. Joined to.

Further, when a pair of floor contacting pieces 31 are separated from each other in the opposite direction and land on the floor 4 of the shielded portion 1 in an open state, both the closing members 35 of the sheet 27 are closed. Seal part 38
The upper and lower portions of the two seal portions 38 are air-tightly joined to the upper and lower seal edges 26 of the two housing recesses 22, respectively. 5, the sheet guide port 6 is hermetically closed.

Therefore, the shielded portion 1 is shielded by the sheet body 27, so that a pair of wall contacting pieces 30 are provided at both ends in the width direction of the sheet body 29 and the opposite wall surface 2 of the shielded portion 1. And the space between the lower end of the sheet body 29 and the floor surface 4 of the shielded portion 1 are sufficiently airtightly closed by a pair of floor contacting pieces 31, and In the closing body 35, the vicinity of the upper end of the sheet body 29 and the ceiling board 5 of the shielded portion 1
Is sufficiently airtightly closed with the sheet guide port 6, and the airtightness therebetween is sufficiently ensured.

Then, the sheet 27 covering the shielded portion 1 is shielded.
Even when the windshield is blown by receiving wind pressure from either one of the front and rear directions, the pair of wall contact pieces 30 between the pair of wall contact pieces 30 and the opposing wall surface 2 of the shielded portion 1 and the pair of floor contact pieces 31 The gap between the floor 4 of the shielded part 1 and the ceiling of the shielded part 1 at the closing part 35 is continuously closed without opening. Airtightness is ensured.

Further, even if the sheet 27 that shields the shielded portion 1 is thermally contracted by hot air or the like, the sheet 27 is separated from the wall surface 2 of the shielded portion 1 in the opposite direction and opened. The sheet body has a pair of wall surface contact pieces 30 contacted with each other and a pair of floor surface contact pieces 31 that are in contact with the floor surface 4 of the shielded portion 1 in a state where they are separated and opened in opposite directions. In response to the heat shrinkage of 27, that is, when the sheet 27 thermally shrinks in the width direction, the pair of wall contact pieces 30 slide along the wall 2,
When the sheet 27 thermally shrinks in the vertical direction, the pair of floor contact pieces 31 slide along the floor 4.

Accordingly, the pair of wall contact pieces 30 between the pair of wall contact pieces 30 and the opposite wall surface 2 of the shielded part 1 and the pair of floor contact pieces 31
Thus, the gap through which the hot air flows in and out of the floor portion 4 of the shielded portion 1 is continuously closed without opening, and the airtightness between them is secured. The sheet 27 that shields the shielded portion 1 reliably prevents hot air, dust, and the like from flowing in and out of the sheet 27 in the front-rear direction.

The sheet 27 is a non-combustible refractory sheet 28.
In this case, a sheet 27 for fire protection that shields the shielded portion 1 is obtained. By using the sheet 27 for fire prevention, a fire prevention sheet shutter device is obtained.

Next, in the above embodiment, the shielded portion 1
Has described the case where the sheet 27 is airtightly shielded without newly providing a guide rail for elevating and lowering the sheet 27 on the opposing wall surface 2. However, the present invention is not limited to this. The shielded portion 1 may be shielded by using an existing guide rail 39 installed on the opposing wall surface 2.

In this case, for example, as shown in FIG. 9, the end plate portion 40 of the existing guide rail 39 installed on the opposite wall surface 2 of the shielded portion 1 is connected to a pair of both end portions of the sheet body 27. Is used as the smooth plate 3 to be brought into contact with the wall contact piece 30.

With this configuration, the sheet member
In a state where a pair of wall contact pieces 30 at both side ends of the 27 are separated from each other in an opposite direction and opened, the end plate section 40 of the existing guide rail 39 facing the flat plate 3 is airtightly contacted with the flat plate 3. Touched.

At this time, a pair of wall contact pieces 30 on both side ends of the sheet body 27 abutted on the opposing smooth plate 3 (end plate portion 40).
Is covered by the front and rear side plate portions 41 of the opposing existing guide rails 39. Therefore, even if the sheet body 27 that shields the shielded portion 1 receives wind pressure from either one of the front and rear directions, it is fanned. The airtightness between the pair of wall contact pieces 30 and the opposing smooth plate 3 (end plate portion 40) is sufficiently ensured.

[0074]

According to the first aspect of the present invention, when the shielded portion is shielded by the sheet member, a pair of wall surfaces at both end portions in the width direction of the sheet member are applied to the opposite wall surface of the shielded portion. The contact pieces come into contact with each other in an open state while being separated from each other in the opposite direction, and the pair of floor contact pieces at the lower end portion of the sheet body land on the floor surface of the shielded portion and are enlarged and deformed. The weights are separated from each other in opposite directions and are brought into contact with each other in an open state.

Therefore, the space between the both ends in the width direction of the sheet member and the opposite wall surface of the shielded portion can be sufficiently airtightly closed by the pair of wall contact pieces, and the pair of floor contact pieces can be closed. Thus, the space between the lower end of the sheet member and the floor of the shielded portion can be sufficiently airtightly closed, and the airtightness between them can be sufficiently ensured.

Further, even if the sheet body shielding the shielded portion is blown by receiving wind pressure from either one of the front and rear directions, a pair of wall contact pieces can be used between the opposite wall surface of the shielded portion and the pair of wall contact pieces. A gap through which the wind or the like flows in and out between the floor contacting piece and the floor of the shielded portion can be continuously closed without opening, and airtightness between them can be secured.

Further, even if the sheet member shielding the shielded portion is thermally contracted by hot air or the like, the sheet member is separated from the opposite wall surfaces of the shielded portion in a direction opposite to each other and abutted in a state of being opened. A pair of floor abutting pieces that abut against the floor of the shielded part and the floor surface of the shielded part in a direction opposite to each other and open. The contact piece slides along the wall surface or the pair of floor contact pieces slides along the floor surface. A gap through which hot air or the like flows in and out between the surface contact piece and the floor surface of the shielded portion can be continuously closed without opening, and airtightness between them can be secured.

Accordingly, it is possible to provide a seat shutter sheet which can shield the shielded portion without using a guide rail.

According to the second aspect of the invention, in addition to the effects of the first aspect, when the shielded portion is shielded by the sheet member, the closed portion of the sheet member is formed on the ceiling board of the shielded portion. The closed sheet guide port can be closed, and airtightness between them can be secured.

Therefore, the shielded portion is shielded by the sheet member, so that the lower end portion of the sheet member and the floor of the shielded portion are located between both side edges of the sheet member and the wall surface facing the shielded portion. Airtightness between the surface and between the sheet body and the guide port of the ceiling board of the shielded part can be sufficiently secured,
As a whole, the shielded portion can be airtightly and reliably shielded by the sheet member.

According to the third aspect of the present invention, in addition to the effect of the first aspect, the lower end of the weight-shaped bag-like body is landed on the floor surface of the shielded portion, and the inside of this bag-like body is The fluid collapses and deforms from a predetermined form, and the bag-like body is expanded and deformed in the front-rear direction by the fluid, and the pair of floor contact pieces at the lower end of the sheet body are opposed to each other in the bag-like body. It can be made to contact the floor surface in a state where it is separated in the direction and opened.

Therefore, the lower end portion of the sheet body and the floor surface are separated by a pair of floor surface contacting pieces which are separated from each other in the opposite directions and abut against the weight of the weight body fluid and the floor surface. Airtightness can be secured.

According to the invention of claim 4, claims 1 to 3
In addition to the effects of any one of the inventions, when the sheet body is rewound from the peripheral surface of the winding drum, a pair of wall contact pieces at both end portions in the width direction of the sheet body are contacted by the contact piece separation guide. The sheet members are separated from each other in opposite directions, and can be brought into contact with the opposing wall surfaces of the shielded portion in a state where the pair of wall contact members at both side ends of the sheet member are opened, and the sheet member is further rewound. With this, the sheet body abuts on the opposing wall surface of the shielded part while the pair of wall contact pieces on both side ends are opened, and slides sequentially along the opposing wall surface of the shielded part. Descended.

When the weight at the lower end of the sheet is brought into contact with the floor of the shielded portion and the sheet is further lowered, the weight of the sheet is combined with the weight of the sheet. Is expanded and deformed in the front-rear direction, and is landed. With this deformed weight body, the pair of floor surface contact pieces at the lower end of the sheet body can be surely separated in the opposite directions to each other. Each of the pieces can be brought into contact with the floor with the pieces opened.

Therefore, the pair of wall contact pieces can sufficiently close the gap between both end portions in the width direction of the sheet member and the opposite wall face of the shielded portion, and the pair of floor contact pieces can be used to close the sheet. The space between the lower end of the body and the floor surface of the shielded part can be sufficiently closed, and the sheet body and the sheet guide opening of the ceiling board of the shielded part can be sufficiently closed by the closing body. It is possible to provide a seat shutter device that can sufficiently secure airtightness between the seat shutter devices.

According to the invention of claim 5, in addition to the effect of the invention of claim 4, the sheet body is opposed in a state where the pair of wall contact pieces at both side ends are separated from each other in opposite directions and opened. By sliding down along the smooth plate, it can be lowered smoothly.

Further, when the shielded portion is shielded by the sheet member, the sheet member comes into close contact with the opposing smooth plate in a state where the pair of wall contact pieces at both side ends are separated from each other and opened. In addition to ensuring airtightness between them, a pair of floor contacting pieces at the lower end of the sheet body are separated from each other in the opposite direction to open and land in a state where airtightness is maintained. In addition, the shielded portion can be shielded in an airtight state.

[Brief description of the drawings]

FIG. 1 is a front view of a seat shutter device according to an embodiment of the present invention.

FIG. 2 is a perspective view in which a part of the sheet body is omitted.

FIG. 3 is an enlarged front view of a separation portion of the wall contact piece.

FIG. 4 is a side view of the same.

FIG. 5 is a cross-sectional view of the sheet body in which the shielded portion is shielded.

FIG. 6 is a cross-sectional view of the closing body in which the sheet guide port is closed.

FIG. 7 is a cross-sectional view of the floor contacting piece when it is lowered.

FIG. 8 is a cross-sectional view of the above-mentioned floor contacting piece at the time of landing.

FIG. 9 is a cross-sectional view of a sheet body according to another embodiment in which a shielded portion is shielded.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shielded part 2 Wall surface 3a Smooth surface 4 Floor surface 5 Ceiling board 6 Sheet guide opening 11 Winding drum 12 Contact piece separation guide 27 Sheet body 29 Sheet body 30 Wall contact piece 31 Floor contact piece 32 Weight body 33 Bag 34 Fluid 35 Closure

Claims (5)

[Claims] 1. A sheet body for shielding a portion to be shielded, wherein the sheet member is provided along both side edges of the sheet body in a width direction of the sheet body, and comes close to each other at the time of winding, so that the portion to be shielded is provided. A pair of deformable wall contact pieces that are separated from each other and abut against the wall surface of the shielded part at the time of shielding, and are provided at the lower end of the sheet body and approach each other at the time of winding, and A pair of deformable floor contacting pieces that are separated from each other and abut against the floor of the shielded part in the opposite direction during shielding, and a lower end portion of the seat body positioned between the pair of floor contacting pieces. And a deformable weight body that is disposed on the floor of the shielded part when the shielded part is shielded and separates the pair of floor contacting pieces in opposite directions. Characteristic seat shutter seat. 2. The seat body has a closing member that closes a sheet guide opening formed in a ceiling board of the covered portion when the covered portion is shielded by the sheet body. Item 2. A sheet for a sheet shutter according to Item 1. 3. A weight body is provided at a lower end portion of the sheet body along the lower end portion of the sheet body, and a deformable bag-shaped body is sealed in the bag-shaped body to deform the bag-shaped body. The sheet for a seat shutter according to claim 1, wherein the sheet is formed to have a fluid. 4. A winding drum rotatably provided above the ceiling board of the shielded portion and rotatably wound around the winding drum. The sheet body described above and a pair of wall contact pieces at both side ends in the width direction of the sheet body which are provided below the both ends of the winding drum and are provided when the sheet body is rewound and lowered. And a contact piece separation guide for separating in a direction. 5. The opposing wall surface of the shielded portion has a vertical smooth surface that abuts a pair of wall contact pieces separated from each other at opposite side ends in the width direction of the sheet member. The seat shutter device according to claim 4, wherein: