JP3593453B2 - Fireproof screen equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a refractory screen device, for example, to a device for preventing the spread of smoke and the spread of fire in a fire.
[0002]
[Prior art]
Conventionally, as this type of refractory screen device, for example, a guide rail fixed to both sides and opposed to each other and formed with an insertion opening in the vertical direction, A non-combustible sheet body which is provided so as to be able to ascend and descend by inserting both side ends thereof, and which shields a shielded portion between the two guide rails, and is provided at a lower end portion of the non-combustible sheet body on a floor surface of the shielded portion. A non-combustible weight body to be landed, and a deformable hollow that is deformed at the time of landing on the floor surface of the shielded portion at the lower end of the non-combustible weight body and closes the space between the non-combustible weight body and the floor surface. A configuration for fixing a tubular floor blockage has been proposed.
[0003]
Then, in the event of a fire, the non-combustible sheet body and the non-combustible weight body descend, and the floor-closing body of the non-combustible weight body is deformed into a flat shape so that the contact surface with the floor surface becomes large, and the floor is closed, At this time, the non-combustible sheet is bent when it receives the pressure exerted by the hot air at the time of fire, or when it shrinks upward due to fire heat. Even if the non-combustible weight and the floor covering are lifted up by the non-combustible sheet in accordance with the amount of flexure and heat shrinkage, the floor is obstructed and deforms upward to make the contact surface with the floor slightly smaller. The space between the floor and the floor is closed by the body.
[0004]
[Problems to be solved by the invention]
However, in the refractory screen device, since the floor blocker is fixed to the lower end of the non-combustible weight, when the amount of flexure and / or heat shrinkage of the non-combustible sheet is large, the non-combustible weight is used. And it is also considered that the floor blockage is further pulled up, and the contact surface between the floor blockage and the floor surface becomes too small, so that a gap is easily generated between the floor blockage and the floor surface. When both ends of the non-combustible weight body are locked when the shielded part is shielded and the non-combustible sheet body receives strong pressure due to the hot air from the fire, the center of the non-combustible sheet body The non-combustible sheet body is greatly bent due to the concentration of pressure in the portion, and the non-combustible weight body and the floor block are lifted up, so that a gap may easily be generated in an intermediate portion between the floor block and the floor. It is conceivable that airtightness and shielding Also conceivable refractory to shield to prevent the outflow of the flame the 蔽部 decreases.
[0005]
Therefore, if the weight of the non-combustible weight body is increased to prevent lifting, and the thickness of the non-combustible weight body is increased to prevent warping, the non-combustible weight body is opened at the shielded portion. It becomes too heavy according to the length in the left-right direction of the part, and the insertion opening of the guide rail for inserting the both ends of this non-combustible weight is enlarged according to the thickness of both ends of this non-combustible weight. You have to open it. However, if the insertion opening of the guide rail is largely opened, a relatively large gap is formed between the insertion opening and both end portions of the non-combustible sheet member, and the hot air or the like easily flows out from the gap. There is.
[0006]
The present invention has been made in view of such problems, and even if the non-combustible sheet body bends under the pressure exerted by the hot air at the time of fire or flexes upward due to fire heat, the non-combustible sheet body A gap can be reliably prevented from being formed between the lower end of the body and the floor surface of the shielded part. Therefore, the airtightness that shields the shielded part airtightly and the shielded part can be prevented by preventing the outflow of flame. It is an object of the present invention to provide a fire-resistant screen device capable of improving fire resistance.
[0007]
[Means for Solving the Problems]
The refractory screen device according to claim 1, wherein the guide rails are fixed to both sides of the shielded portion and face each other, and the insertion openings are formed in the vertical direction. A non-combustible sheet body which is provided to be able to ascend and descend by inserting both side ends of the non-combustible sheet, and a non-combustible sheet which is provided at a lower end of the non-combustible sheet body and land on the floor surface of the shielded part. A non-combustible weight body, wherein the non-combustible weight body is vertically moved by a first weight member fixed along a lower end of the non-combustible sheet body. A second weight member freely provided, wherein the first weight member is opened along a lower end portion of the first weight member to vertically move the second weight member. The second weight member has an insertion port movably inserted therein, and the second weight member is vertically movable into the insertion port of the first weight member. A movable plate portion having an insertion portion which is inserted into the insertion openings of the guide rails on both sides at both end portions thereof and which is vertically movable, and which is formed at an upper end portion of the movable plate portion to contact an inner edge portion of the insertion opening. A retaining plate portion that is in contact with and is prevented from coming off, and a landing plate portion formed at a lower end portion of the movable plate portion and landing on the floor surface.The fire-resistant screen device, wherein the non-combustible sheet body is formed with a flat plate-shaped fixing portion for fixing the non-combustible weight body along a lower end portion, and the plate-shaped fixing portion is provided with the guide. A first flat member having an insertion protruding portion which is inserted into the insertion opening of the rail so as to be movable up and down; A closing cover body that is inserted and closes between both end portions of the first weight member and the guide rail, wherein the closing cover body has both end portions of the weight plate of the first weight member; A mounting plate portion abutting against the portion and fixed to both end portions of the weight plate, a closing plate portion orthogonal to the mounting plate portion, and an insertion plate inserted into the insertion opening of the guide rail 1 so as to be able to move up and down. And the insertion plate portion is disposed along lower ends of both side ends of the plate-shaped fixing portion. BeThings.
[0008]
Then, when shielding the shielded portion, the non-combustible sheet body is lowered so that both ends in the width direction of the non-combustible sheet body are along the opposed insertion openings of the guide rails on both sides and are non-combustible. In the non-combustible weight body, the insertion portions at both end portions of the movable plate portion of the second weight member are smoothly lowered by the weight of the non-combustible weight body along the opposed insertion openings of the guide rails on both side portions. .
[0009]
When the non-combustible weight body descends, the second weight member of the non-combustible weight body is lowered while protruding downward from the first weight member by its own weight and suspended. That is, the second weight member is lowered from the first weight member by its own weight, and the retaining plate at the upper end of the movable plate is fixed to the lower end of the non-combustible sheet body. The member is lowered while protruding downward from the first weight member in a state where it comes into contact with the inner edge of the insertion opening of the member and is prevented from being pulled out.
[0010]
When the non-combustible sheet body descends, the landing plate portion of the second weight member of the non-combustible weight body is landed on the floor surface of the shielded part, and the non-combustible sheet body is further lowered by a predetermined amount. The first weight member of the non-combustible weight body is lowered by a predetermined amount using the insertion port of the first weight member and the movable plate portion of the second weight member inserted through the insertion port as a guide.
[0011]
When the lowering of the non-combustible sheet is stopped, the lowering of the first weight member of the non-combustible weight body is stopped, and the first weight member is detached from the inner edge of the insertion opening of the first weight member. The retaining plate portion of the second weight member and the movable plate portion of the second weight member having the retaining plate portion at the upper end protrude above the insertion opening of the first weight member. .
[0012]
Therefore, the landing plate portion of the second weight member is air-tightly placed on the floor surface of the shielded portion by the weight of the second weight member, and the second weight member having the landing plate portion and The lower portion of the non-combustible sheet member and the floor surface of the shielded portion are reliably airtightly closed by the first weight member lowered along the movable plate portion of the second weight member, and The non-combustible weight body and the non-combustible sheet body reliably shield the space between the shielded portions and the guide rails on both sides.
[0013]
In addition, the insertion openings of the guide rails on both sides can freely move up and down the insertion portions at both end portions in the width direction of the non-combustible sheet member and both end portions of the movable plate portion of the second weight member of the non-combustible weight member. By inserting the openings at relatively small intervals, the insertion openings of the guide rails on both sides and both end portions in the width direction of the non-combustible sheet body and the first and second non-combustible weight bodies in a state where the shielded portion is shielded. No large gap is formed between the two weight members and the insertion ends of the movable plate portion so that hot air or the like easily flows out, and the airtightness therebetween is improved.
[0014]
In this manner, 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 member and the non-combustible weight body. The outflow of hot air and the like is prevented, and the diffusion of hot air and the like and the spread of fire are prevented.
[0015]
Next, with the non-combustible sheet body and the non-combustible weight body blocking the shielded portion, the non-combustible sheet body bends under the pressure exerted by the hot air at the time of fire, or heats upward due to fire heat. If the non-combustible sheet body contracts, the first weight member of the non-combustible weight body is pulled up by the non-combustible sheet body in accordance with the amount of deflection and thermal contraction of the non-combustible sheet body.
[0016]
At this time, the first weight member is pulled up using the insertion port of the first weight member and the movable plate portion of the second weight member inserted through the insertion port as a guide. The member is not lifted by the first weight member, and the floor plate at the lower end of the movable plate portion of the second weight member continues to be air-tightly landed on the floor surface of the shielded portion, Hot air or the like is reliably prevented from flowing out from between these portions.
[0017]
When the amount of deflection and / or the amount of heat shrinkage of the non-combustible sheet member are large, even if the first weight member is further pulled up from the second weight member, the movable plate of the second weight member The floor plate at the lower end of the part is continuously airtightly landed on the floor surface of the shielded part, and hot air or the like is reliably prevented from flowing out between them.
[0018]
Also, when the non-combustible sheet body is intensified by the hot air at the time of fire and receives a strong pressure in a state where both ends of the non-combustible weight body are locked when the shielded portion is shielded, the second weight is also used. The member is not lifted by the first weight member, and the floor plate at the lower end of the movable plate portion of the second weight member continues to be air-tightly landed on the floor surface of the shielded portion, A gap is prevented from being formed at an intermediate portion between the second weight member and the floor surface.
[0019]
Therefore, with the non-combustible sheet body and the non-combustible weight body blocking the shielded part, the non-combustible sheet body bends under the pressure exerted by the hot air at the time of fire, or heat contracts upward due to fire heat. Even in such a case, the hermeticity of hermetically shielding the shielded portion and the fire resistance of shielding the shielded portion by preventing the outflow of the flame are improved.
[0020]
Further, the space between the both ends of the first weight member and the guide rail is closed by the closing cover body, and between the both ends of the first weight member and the guide rail when the shielded portion is shielded. The airtightness is improved by preventing the hot air or the like from flowing out.
[0021]
According to a second aspect of the present invention, there is provided the fireproof screen apparatus according to the first aspect, wherein the insertion opening of the first weight member is detachably attached to the first weight member. It is formed at the opposite end of the bottom plate.
[0022]
Then, by attaching a pair of bottom plate portions to the first weight member, an insertion opening is easily formed at the opposite end portions of the pair of bottom plate portions. One bottom plate is attached to one side of the weight member, and the movable plate portion of the second weight member is disposed along the end of the one bottom plate, and the other side of the first weight member is placed. By attaching the other bottom plate to the second bottom plate, the movable plate of the second weight member can be easily moved up and down in the insertion opening formed by the end of the other bottom plate and the end of the one bottom plate. Be incorporated.
[0023]
ContractRequest3The refractory screen device described in the claim1 or 2In the refractory screen device described above, the first weight members are respectively protruded downward from both sides of the first weight members, and are opposed to each other via the second weight members when landing on the floor surface. And a pair of non-combustible end sheets that land in a direction away from each other.
[0024]
Then, when the landing plate portion of the second weight member is landed on the floor surface of the shielded portion and the non-combustible sheet body is further lowered, the first weight member becomes the first weight member of the first weight member. The lower portion of the pair of non-combustible end sheets is lowered by a predetermined amount using the insertion port and the movable plate portion of the second weight member inserted through the insertion port as a guide. To be landed.
[0025]
When the first weight member is further lowered by a predetermined amount, the pair of non-combustible end sheets are separated by the first weight member in opposite directions via the second weight member. It is transformed into an expanded state and is landed. When the lowering of the non-combustible sheet is stopped, the lowering of the first weight member of the non-combustible weight body is stopped, and the first weight member is detached from the inner edge of the insertion opening of the first weight member. The retaining plate portion of the second weight member and the movable plate portion of the second weight member having the retaining plate portion at the upper end protrude above the insertion opening of the first weight member. .
[0026]
Therefore, the landing plate portion of the second weight member is air-tightly placed on the floor surface of the shielded portion by the weight of the second weight member, and the second weight member having the landing plate portion and Non-combustible at a pair of non-combustible end sheets of the first weight member descended along the movable plate portion of the second weight member and air-tightly landed on the floor via the second weight member. The gap between the lower end portion of the conductive sheet body and the floor surface of the shielded portion is more reliably hermetically closed.
[0027]
Then, the pair of non-combustible end sheets of the first weight member are air-tightly placed on the floor via the second weight member, so that the pair of non-combustible end sheets form the second non-combustible end sheet. Hot air or the like is prevented from flowing out into the insertion opening of the first weight member, through which the movable plate portion of the weight member is inserted.
[0028]
Next, in a state where the shielded portion is shielded by the non-combustible sheet body and the non-combustible weight body, the non-combustible sheet body bends under the pressure of the hot air at the time of the fire, or bends upward due to the heat of the fire. When there is such a thing as thermal contraction, the first weight member of the non-combustible weight body is pulled up by the non-combustible sheet body in accordance with the amount of deflection and thermal contraction of the non-combustible sheet body, The pair of non-combustible end sheets of the first weight member are lifted while sliding along the floor surface toward the landing plate portion of the second weight member while the pair of non-combustible end sheets are landed on the floor surface.
[0029]
At this time, the first weight member is pulled up using the insertion port of the first weight member and the movable plate portion of the second weight member inserted through the insertion port as a guide. The member is not lifted by the first weight member, and the floor plate at the lower end of the movable plate of the second weight member continues to be air-tightly landed on the floor surface of the shielded portion. The pair of non-combustible end sheets of the first weight member continue to be air-tightly placed on the floor surface, and the lower end portion of the non-combustible sheet body is formed by the second weight member and the pair of non-combustible end sheets. The hot air or the like is reliably prevented from flowing out from between the floor and the floor.
[0030]
Therefore, with the non-combustible sheet body and the non-combustible weight body blocking the shielded part, the non-combustible sheet body bends under the pressure exerted by the hot air at the time of fire, or heat contracts upward due to fire heat. Even in such a case, the pair of non-combustible end sheets are slid in a state where they land on the floor, and the pair of non-combustible end sheets move between the second weight member and the floor. The airtightness of the closed second weight member is complemented.
[0031]
Then, the space between the lower end portion of the noncombustible sheet body and the floor surface is more securely airtightly closed by the first weight member having the second weight member and the pair of noncombustible end sheets as a whole. The airtightness for airtightly shielding the shielding portion and the fire resistance for shielding the shielded portion by preventing the outflow of the flame are improved.
[0032]
Claim4The fire-resistant screen device according to claim 1, wherein the landing plate portion of the second weight member is horizontally formed by a protruding plate portion protruding in opposite directions about the movable plate portion. Is formed in
[0033]
When the landing plate portion of the second weight member has landed on the floor surface, the landing plate portion is formed horizontally by a protruding plate portion protruding in the opposite direction from the movable plate portion as a center. By this, the landing plate portion is stably and properly landed on the floor surface, and the movable plate portion on the landing plate portion is vertically held so as to be easily guided when the first weight member is pulled up. Is done.
[0034]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0035]
Numeral 1 denotes left and right vertical guide rails which are vertically fixed to opposing side walls of the shielded portion 2, respectively. The opening is formed in a substantially U-shaped cross section. The insertion opening 3 is formed in each of the inner plate portions 4 of the guide rail 1, and has a vertical guide piece 5 formed opposite to an opening edge thereof. The shielded portion 2 means an opening such as an entrance, an emergency exit, and a passage.
[0036]
Further, a screen box 7 in which the upper ends of the left and right guide rails 1 are inserted is fixed to a ceiling wall 6 such as an upper frame of the shielded portion 2, and the screen box 7 is provided at the lower end with the left and right guides. The rail 1 has a left-right guide port 8 opened to communicate with the insertion port 3 of the rail 1.
[0037]
A take-up shaft 10 having a take-up drum 9 in the left-right direction is rotatably supported in the screen box 7. The wheel 11 is fixed. A forward / reverse rotating motor 12 is fixed in the screen box 7, and a driving wheel 14 is fixed to an output shaft 13 of the motor 12 at a position facing the rotating wheel 11. An endless revolving body 15 is suspended between and 11.
[0038]
The motor 12 is operated by an output signal such as a fire signal from control means (not shown), and the output of the motor 12 is decelerated and transmitted to the winding shaft 10. Further, the motor 12 is automatically stopped at a predetermined number of rotations set in accordance with a landing position at which a non-combustible weight body to be described later lands on the floor surface 16 of the shielded portion 2. It has become. Further, the operation of the motor 12 is stopped by a stop signal from the control means, which receives a detection signal detected when a non-combustible weight body described later is landed on the floor surface 16 of the shielded portion 2. You may do so.
[0039]
Next, a refractory screen 17 for shielding the shielded portion 2 is provided on the screen box 7 so as to be rewound and lowered freely. The refractory screen 17 is a non-combustible sheet 18 that can be raised and lowered to shield the shielded portion 2, and is provided at the lower end of the non-combustible sheet 18 and descends and attaches to the floor 16 of the shielded portion 2. And a non-combustible weight body 19 to be placed on the floor.
[0040]
One end (upper end) of the non-combustible sheet 18 is fixed to the take-up drum 9 and wound around the winding drum 9 so that it can be rewound and lowered. Both end portions are formed as insertion portions 20 which are inserted into the insertion openings 3 of the left and right guide rails 1 so as to be movable up and down. Further, the non-combustible sheet member 18 extends along the lower end portion of the non-combustible sheet member. An oblate flat plate-shaped fixing portion 21 for fixing the weight 19 is formed.
[0041]
The plate-shaped fixing portion 21 is a hollow formed by integrally fixing an upper end portion of a folded piece portion 22 obtained by folding a lower end portion of the non-combustible sheet member 18 to the non-combustible sheet member 18 and opening both side ends. And a non-combustible flat plate-shaped body 24 inserted and housed in the housing part 23 through an opening at one end of the housing part 23.
[0042]
Further, the flat plate-like body 24 is projected outward from both insertion portions 20 of the non-combustible sheet member 18 at both end portions, and is inserted into the insertion openings 3 of the left and right guide rails 1 so as to be able to move up and down. Each has an insertion protrusion 25.
[0043]
The non-combustible weight member 19 includes a first weight member 26 fixed along a plate-shaped fixing portion 21 formed at a lower end portion of the non-combustible sheet member 18, and a first weight member 26. And a second weight member 27 provided to be vertically movable.
[0044]
The first weight member 26 is composed of one weight plate 28, the other weight plate 29 formed in the same shape as the one weight plate 28, and the second weight member 27. And a pair of bottom plate portions 31 forming an insertion port 30 movably inserted therethrough.
[0045]
The one weight plate 28 and the other weight plate 29 are respectively formed except for both end portions of the non-combustible sheet member 18, that is, have a length slightly shorter than the width of the non-combustible sheet member 18. Each is formed. In addition, the one weight plate 28 and the other weight plate 29 include a vertical plate portion 32, a horizontal plate portion 33 bent at a substantially right angle to an upper end of the vertical plate portion 32, and a horizontal plate portion. The protruding end portion 33 is bent upward at a substantially right angle, and has a vertical holding plate portion 34 for holding the plate-shaped fixing portion 21.
[0046]
Then, the holding plate portions 34 of the one weight plate 28 and the other weight plate 29 abut on both side portions of the plate-shaped fixing portion 21, respectively, and the one holding plate portion 34 By inserting a plurality of fixing bolts 35 at a predetermined interval into the other holding plate portion 34 through each other, and by tightening the nuts 36 positioned on the other holding plate portion 34 side to these fixing bolts 35, respectively. One weight plate 28 and the other weight plate 29 are fixed to the plate-shaped fixing portion 21 in a state where the plate-shaped fixing portion 21 is held between the both holding plate portions 34.
[0047]
Further, since one weight plate 28 and the other weight plate 29 are fixed to the plate-shaped fixing portion 21, the vertical plate portions 32 of the one weight plate 28 and the other weight plate 29 face each other. Then, the second weight member 27 enters and exits the upper part of the pair of bottom plate parts 31 at the opposed vertical plate part 32 and the horizontal plate part 33 at the upper end of the vertical plate part 32 so as to be vertically movable. An accommodation space 37 is formed.
[0048]
Further, the one weight plate 28 and the other weight plate 29 are inserted into the insertion openings 3 of the left and right guide rails 1 at both ends so as to be able to move up and down, respectively, and the one weight plate 28 and the other weight are inserted. Each of the weight plates 29 has a closing cover 38 that closes between both end portions of the weight plate 29 and the left and right guide rails 1.
[0049]
The closing cover body 38 abuts on both side ends of the both weight plates 28 and 29 and is fixed to both side ends of the both weight plates 28 and 29 by a plurality of fixing screws 39. And a mounting plate portion 40 formed integrally with the mounting plate portion 40 and in contact with both ends of the vertical plate portion 32 and the horizontal plate portion 33 of the weight plates 28 and 29 to close the space therebetween. It has a closing plate portion 41 in the orthogonal direction, and an insertion plate portion 42 integrally protruded outward from the closing plate portion 41 and inserted into the insertion openings 3 of the left and right guide rails 1 so as to be vertically movable. It is formed.
[0050]
Then, the opposite insertion plate portions 42 of the both side end portions are arranged along the lower end portions of both side end portions of the plate-shaped fixing portion 21 close to each other, and the outer end portion of the plate-shaped fixing portion 21 It is projected to substantially the same outer end position.
[0051]
Further, a pair of bottom plate portions 31 forming the insertion opening 30 are disposed to face the same plane, and abut against the outer ends along the lower end portions of the vertical plate portions 32 of the weight plates 28, 29. The vertical plate portion 32 has vertical mounting pieces 44 fixed to the vertical plate portion 32 with a plurality of fixing screws 43, respectively. The insertion holes 30 are formed at predetermined intervals through which a movable plate portion (to be described later) of the heavy water member 27 is vertically movably inserted.
[0052]
Further, the first weight member 26 is protruded downward from both sides of the first weight member 26, respectively, via the second weight member 27 at the time of landing on the floor surface 16. Each of the pair of non-combustible end sheets 45 has a pair of non-combustible end sheets 45 which are separated from each other in the opposite direction and land on the floor. , 29 are fixed between the lower end portions of the vertical plate portions 32 of the pair of bottom plate portions 31 and the mounting pieces 44 of the pair of bottom plate portions 31 with the plurality of fixing screws 43. The lower end is formed as a landing plate portion 46 for landing on the floor surface 16.
[0053]
The pair of non-combustible end sheets 45 are deformed in directions opposite to each other at the time of landing on the floor 16 with the non-combustible member, are separated from each other, and are directed toward each other when pulled up on the floor 16. And can be deformed in the direction of restoration, and are formed in the same shape and in a horizontally long rectangular shape. The pair of non-combustible end sheets 45 are formed along the weight plates 28 and 29 to have substantially the same length as the weight plates 28 and 29.
[0054]
Thus, the pair of non-combustible end sheets 45 and the non-combustible sheet body 18 are formed of non-combustible cloth such as glass cloth or silica cloth.
[0055]
In addition, an end sheet pressing plate 48 having a support protrusion 47 at an outer end portion for supporting the pair of non-combustible end sheets 45 along the lower surface of the pair of bottom plate portions 31 in such a state that the pair of non-combustible end sheets 45 are always expanded downward. Are fixed respectively. A communication insertion port 49 communicating with the insertion port 30 is formed at an inner end of the pair of end sheet pressing plates 48.
[0056]
Next, the second weight member 27 is vertically movably inserted into the insertion opening 30 of the first weight member 26 and the communication insertion opening 49 of the pair of end sheet pressing plates 48, and the both end portions are provided. A vertically movable plate 51 having an insertion portion 50 which is inserted into the insertion openings 3 of the left and right guide rails 1 so as to be vertically movable, and an inner edge of the insertion opening 30 formed at an upper end of the movable plate 51. A retaining plate portion 52 that comes into contact with the portion from above and is prevented from coming off, and a landing plate portion 53 that is formed at a lower end portion of the movable plate portion 51 and is placed on the floor surface 16. I have.
[0057]
The retaining plate portion 52 is formed by a protruding piece portion 54 at an upper end portion formed by horizontally projecting in a direction opposite to each other around the movable plate portion 51, and the landing plate portion 53 is It is formed by a protruding plate portion 55 at a lower end portion protruded horizontally toward the opposite direction from the movable plate portion 51 as a center, and the landing plate portion 53 is formed by a projecting piece portion 54 of the retaining plate portion 52. It is formed to have a horizontal landing surface 56 having a large contact surface with the floor surface 16 with a projecting plate portion 55 having a wide shape.
[0058]
Thus, the movable plate portion 51 may be formed of a single plate-like member, or may be formed integrally by stacking two plate-like members. Further, the retaining plate portion 52 may be formed of a single plate-like member, and the two protruding piece portions 54 may be horizontally formed in opposite directions around the movable plate portion 51. It may be formed so as to protrude. Further, the landing plate portion 53 may be formed of a single plate-like member, and two projecting plate portions 55 are projected horizontally in opposite directions about the movable plate portion 51. May be formed.
[0059]
When attaching the second weight member 27 to the first weight member 26, one bottom plate portion 31 is attached to the weight plate 28 on one side of the first weight member 26, and With the movable plate portion 51 of the second weight member 27 disposed along the end of the bottom plate portion 31, the other bottom plate portion 31 is attached to the other weight plate 29 on the other side of the first weight member 26. As a result, the second weight member 27 is easily attached to the first weight member 26, and the end of the other bottom plate 31 and the end of the one bottom plate 31 allow the insertion opening 30 and the communication insertion The opening 49 is easily formed, and the movable plate portion 51 of the second weight member 27 is easily and vertically assembled into the insertion opening 30 and the communication insertion opening 49.
[0060]
Next, the operation of the above embodiment will be described.
[0061]
When the shielded portion 2 is opened, since the non-combustible sheet 18 is wound around the winding drum 9, the second non-combustible weight 19 fixed to the lower end of the non-combustible sheet 18 is formed. The guide opening 8 of the screen box 7 is closed by the landing plate portion 53 of the weight member 27, and the screen box 7 is buried in the ceiling of the shielded portion 2, and the guide opening 8 of the screen box 7 is When the opening is formed on the lower surface of the ceiling, the guide port 8 of the screen box 7 and the opening of the ceiling are closed by the landing plate 53 of the second weight member 27.
[0062]
Next, when the shielded portion 2 is shielded, for example, when the motor 12 is operated by a fire signal at the time of a fire that shields the shielded portion 2, the output from the motor 12 causes the winding shaft 10 to rotate the non-combustible sheet member. The non-combustible sheet member 18 is sequentially rotated from the winding drum 9 of the winding shaft 10 while being driven to rotate in the direction of rewinding the winding member 18.
[0063]
When the non-combustible sheet 18 is lowered, the insertion portions 20 at both ends in the width direction of the non-combustible sheet 18 are moved along the opposed insertion openings 3 of the left and right guide rails 1 and are non-combustible. The weights 19 of the non-combustible weights 19 are arranged such that the insertion portions 50 at both ends of the movable plate portion 51 of the second weight member 27 extend along the insertion openings 3 of the left and right guide rails 1 facing each other. It is lowered smoothly.
[0064]
When the non-combustible weight body 19 descends, the second weight member 27 of the non-combustible weight body 19 is lowered while protruding downward from the first weight member 26 by its own weight and suspended. You. That is, the second weight member 27 is lowered from the first weight member 26 by its own weight, and the retaining plate 52 at the upper end of the movable plate 51 is fixed to the lower end of the non-combustible sheet member 18. The first weight member 26 protrudes downward from the first weight member 26 in a state in which the first weight member 26 is in contact with the inner edge of the insertion opening 30 from above and is prevented from being removed, and is lowered while being suspended.
[0065]
Then, when the landing plate portion 53 of the second weight member 27 is landed on the floor surface 16 of the shielded portion 2 and the non-combustible sheet member 18 is further lowered, the first weight member 26 is The first weight member 26 is lowered by a predetermined amount using the insertion port 30 and the communication insertion port 49 of the first weight member 26 and the movable plate portion 51 of the second weight member 27 inserted through the insertion port 30 and the communication insertion port 49 as a guide, With this first weight member 26, the landing plates 46 at the lower ends of the pair of non-combustible end sheets 45 are each placed on the floor surface 16.
[0066]
At this time, the landing plate portion 53 of the second weight member 27 is formed horizontally by a protruding plate portion 55 protruding in the opposite direction with respect to the movable plate portion 51. By providing a landing surface 56 having a large contact surface on the lower surface of the portion 55, when the landing plate portion 53 of the second weight member 27 has landed on the floor surface 16, the landing plate portion 53 The floor 56 is hermetically landed on the floor 16 at the surface 56, and the landing plate portion 53 is stably and well-grounded on the floor surface 16, and the movable plate portion 51 on the floor plate 53 The weight member 26 is held vertically so as to be easily guided when the weight member 26 is pulled up.
[0067]
When the first weight member 26 is further lowered by a predetermined amount, the landing plate portions 46 of the pair of non-combustible end sheets 45 are connected to the second weight member 27 by the first weight member 26. Then, they are separated from each other in the opposite directions and are deformed into a state of being expanded, and are landed. Then, the motor 12 rotates at a set predetermined number of rotations and stops, and the lowering of the non-combustible sheet member 18 is stopped, so that the first weight member 26 of the non-combustible weight body 19 is stopped. Of the second weight member 27, which is separated from the inner edge of the insertion opening 30 of the first weight member 26, and has the stopper plate portion 52 at the upper end. The movable plate portions 51 of the second weight members 27 project and are accommodated in the accommodation spaces 37 above the insertion openings 30 of the first weight members 26, respectively.
[0068]
At this time, the motor 12 is mounted on the pair of end sheet holding plates of the first weight member 26 with respect to the floor plate portion 53 of the second weight member 27 landed on the floor surface 16 of the shielded portion 2. The number of rotations is set so as to stop the rotation at the time when 48 has moved down to the proximity position, and also on the landing plate portion 53 of the second weight member 27 that has landed on the floor surface 16 of the shielded portion 2. The number of rotations is set so that the rotation is stopped when the pair of end sheet pressing plates 48 of the first weight member 26 drop to a height position separated by a predetermined distance.
[0069]
For this reason, the motor 12 is rotated at a set predetermined number of rotations and stopped, and the lowering of the non-combustible sheet member 18 is stopped, so that the upper portion of the first weight member 26 above the insertion port 30 is stopped. The retaining plate portion 52 of the second weight member 27 and the movable plate portion 51 of the second weight member 27 having the retaining plate portion 52 at the upper end are provided within the accommodation space 37 by a predetermined amount. A pair of end sheet pressing plates 48 of the first weight member 26 were positioned proximate to the floor plate 53 of the second weight member 27 that was protruded and accommodated and landed on the floor surface 16. The lowering of the first weight member 26 is stopped in a state, or in a state where the pair of end sheet pressing plates 48 have been lowered to a height position separated by a predetermined interval.
[0070]
Therefore, the floor plate 53 of the second weight member 27 is air-tightly placed on the floor surface 16 of the shielded portion 2 by the weight of the second weight member 27, and the second floor member 53 having the floor plate 53 is provided. The first weight that descends along the second weight member 27 and the movable plate portion 51 of the second weight member 27 and is air-tightly landed on the floor 16 via the second weight member 27 The space between the lower end of the non-combustible sheet member 18 and the floor surface 16 of the shielded portion 2 is more reliably hermetically closed by the member 26 and the pair of non-combustible end sheets 45 of the first weight member 26. In addition, the non-combustible weight 19 and the pair of non-combustible sheets 18 reliably shield the space between the shielded portion 2 and the left and right guide rails 1.
[0071]
Then, the pair of non-combustible end sheets 45 of the first weight member 26 are air-tightly placed on the floor 16 via the second weight member 27, so that the pair of non-combustible end sheets 45 This prevents hot air and the like from flowing into and out of the insertion opening 30 and the communication insertion opening 49 of the first weight member 26 through which the movable plate portion 51 of the second weight member 27 is inserted.
[0072]
Also, the first weight member 26 is inserted into the insertion openings 3 of the left and right guide rails 1 at both end portions so as to be able to move up and down, respectively, between the both end portions of the first weight member 26 and the guide rail 1. Of the first weight member 26 and the guide rail 1 at the closing plate portion 41 and the inserting plate portion 42 of the closing cover body 38 at the both end portions. The gap is closed, so that hot air or the like is prevented from flowing in and out from between the both end portions of the first weight member 26 and the guide rail 1 when the shielded portion 2 is shielded.
[0073]
The insertion openings 3 of the left and right guide rails 1 are on both sides of the insertion portions 20 at both ends in the width direction of the noncombustible sheet member 18 and the movable plate portion 51 of the second weight member 27 of the noncombustible weight member 19. The openings are inserted at relatively narrow intervals into which the insertion portions 50 at the ends are inserted so as to be able to move up and down, so that the width of the insertion opening 3 of the left and right guide rails 1 and the width of the non-combustible sheet member 18 when the shielded portion 2 is shielded. A large gap between the insertion portions 20 at both end portions in the direction and the insertion portions 50 of the movable plate portion 51 of the second weight member 27 of the non-combustible weight body 19 so that hot air or the like easily flows out. Are not formed, and the airtightness between them is improved.
[0074]
In this manner, when the shielded portion 2 is shielded, the airtightness and fire resistance of the shielded portion 2 are improved as a whole by the non-combustible sheet member 18 and the non-combustible weight body 19. Outflow and inflow of hot air and the like from one side to the other side are prevented, and diffusion and spread of smoke such as hot air are prevented.
[0075]
Next, in a state where the shielded portion 2 is shielded by the non-combustible sheet member 18 and the non-combustible weight member 19, the non-combustible sheet member 18 bends under the pressure of the hot air at the time of the fire, If heat shrinks upward due to heat, the first weight of the non-combustible weight body 19 is formed by the non-combustible sheet body 18 in accordance with the amount of deflection and heat shrinkage of the non-combustible sheet body 18. As the weight member 26 is lifted, the pair of non-combustible end sheets 45 of the first weight member 26 face the landing plate portion 53 of the second weight member 27 with the pair of non-combustible end sheets 45 landing on the floor surface 16. And is raised while sliding along the floor surface 16.
[0076]
At this time, the first weight member 26 is connected to the insertion port 30 and the communication insertion port 49 of the first weight member 26 and the second weight member 27 inserted into the insertion port 30 and the communication insertion port 49. The second weight member 27 is not pulled up by the first weight member 26, but is pulled up by using the movable plate portion 51 as a guide. The landing plate portion 53 continues to be air-tightly placed on the floor surface 16 of the shielded portion 2, and the landing plate portions 46 of the pair of nonflammable end sheets 45 of the first weight member 26 are placed on the floor surface 16. The second weight member 27 and the pair of non-combustible end sheets 45 keep the air-tightness from flowing between the lower end portion of the non-combustible sheet body 18 and the floor surface 16. It is reliably prevented.
[0077]
That is, for example, when the non-combustible sheet body 18 and the pair of non-combustible end sheets 45 are pressed from one side in the front-rear direction to the other side under the pressure of hot air or the like, the non-combustible sheet body 18 faces in the pressing direction. The second weight member 27 while the floor plate 46 of one of the non-combustible end sheets 45 pressed between the pair of non-combustible end sheets 45 remains on the floor 16. Is slid along the floor surface 16 while flexing toward the landing plate portion 53 of the vehicle.
[0078]
Similarly, when the other non-combustible end sheet 45 is pressed by receiving a pressure of hot air or the like, the second non-combustible end sheet 45 is similarly placed on the floor 16 while the floor plate 46 of the other non-combustible end sheet 45 is still on the floor 16. The weight member 27 is slid along the floor 16 while flexing toward the landing plate portion 53.
[0079]
When the amount of deflection and / or heat shrinkage of the non-combustible sheet member 18 is large, even if the first weight member 26 is further pulled up from the second weight member 27, the second weight member The landing plate portion 53 at the lower end of the movable plate portion 27 and the landing plate portion 46 of the pair of non-combustible end sheets 45 continue to be air-tightly landed on the floor surface 16 of the shielded portion 2, and from between these portions. Hot air and the like are reliably prevented from flowing in and out.
[0080]
Thus, even if the non-combustible sheet body 18 and the pair of non-combustible end sheets 45 receive pressure such as hot air from any of the front and rear directions, the pair of non-combustible end sheets 45 land on the floor 16. The airtightness between the second weight member 27 and the floor 16 is complemented by the pair of noncombustible end sheets 45.
[0081]
Also, when both ends of the non-combustible weight body 19 are locked when the shielded portion 2 is shielded and the non-combustible sheet body 18 is subjected to strong pressure by the hot air at the time of fire, the second The weight member 27 of the second weight member 27 is not lifted by the first weight member 26, and the floor plate 53 at the lower end of the movable plate portion 51 of the second weight member 27 and the pair of non-combustible end sheets 45 The landing plate portion 46 continues to be air-tightly placed on the floor surface 16 of the shielded portion 2 to reliably prevent a gap from being formed in the intermediate portion between the second weight member 27 and the floor surface 16. Is done.
[0082]
Therefore, in a state where the shielded portion 2 is shielded by the non-combustible sheet member 18 and the non-combustible weight member 19, the non-combustible sheet member 18 bends under the pressure of the hot air at the time of fire, Even when heat shrinks upward, the pair of non-combustible end sheets 45 are slid in a state where the floor plates 46 of the pair of non-combustible end sheets land on the floor surface 16, and the pair of non-combustible end sheets 45 The airtightness of the second weight member 27 closing the space between the second weight member 27 and the floor 16 is surely complemented.
[0083]
The first weight member 26 having the second weight member 27 and the pair of non-combustible end sheets 45 as a whole ensures the airtightness between the lower end of the non-combustible sheet body 18 and the floor 16. The airtightness for shielding the shielded portion 2 in an airtight manner and the fire resistance for shielding the shielded portion 2 by preventing the inflow and outflow of the flame are improved, and the diffusion of smoke and the spread of fire during a fire are prevented.
[0084]
Next, in the above-described embodiment, the non-combustible weight body 19 is a pair of first and second weight members 26 that are separated from each other and land on opposite sides via the second weight member 27 in opposite directions. Although the case where the non-combustible end sheet 45 is provided has been described, the present invention is not limited to this, and the non-combustible weight body 19 includes the first weight member 26 having no pair of non-combustible end sheets 45 and the first weight A second weight member 27 provided on the member 26 so as to be vertically movable may be configured.
[0085]
With such a configuration, in a state where the shielded portion 2 is shielded by the non-combustible sheet member 18 and the non-combustible weight member 19, the non-combustible sheet member 18 is bent by receiving pressure exerted by hot air at the time of fire. Even if the heat shrinks upward due to fire heat, the first weight member 26 is inserted into the insertion port 30 and the communication insertion port 49 of the first weight member 26 and these insertion ports 30. The second weight member 27 is lifted up by the movable plate portion 51 of the second weight member 27 inserted into the communication insertion opening 49 as a guide. The landing plate portion 53 at the lower end of the movable plate portion 51 of the second weight member 27 continues to be air-tightly placed on the floor surface 16 of the shielded portion 2, and the second weight member 27 and the first weight member The weight member 26 reliably prevents hot air and the like from flowing in and out from between the lower end portion of the non-combustible sheet member 18 and the floor surface 16. .
[0086]
【The invention's effect】
According to the invention of claim 1, the non-combustible weight body has a first weight member, and a second weight member provided on the first weight member so as to be vertically movable. A movable plate portion having an insertion portion which is vertically movably inserted into the insertion opening of the first weight member, and has insertion portions which are inserted into the insertion openings of the guide rails on both sides so as to be movable up and down, respectively; A retaining plate portion formed at an upper end portion of the movable plate portion and abutting against an inner edge portion of the insertion port to be prevented from being pulled out; and a landing plate formed at a lower end portion of the movable plate portion and landing on a floor surface. When the shielded portion is shielded, the landing plate portion of the second weight member can be air-tightly landed on the floor surface of the shielded portion by the weight of the second weight member when the shielded portion is shielded. The lower end of the non-combustible sheet member is shielded by the second weight member having the floor plate portion and the first weight member lowered along the movable plate portion of the second weight member. Between the floor parts can be reliably closed airtightly, and can be reliably shielded between the opposite sides of the guide rail of the shield portion in the incombustible weight body and incombustible sheet.
[0087]
In addition, the insertion openings of the guide rails on both sides are relatively narrow spaces in which the insertion portions at both end portions in the width direction of the non-combustible sheet member and both end portions of the movable plate portion of the second weight member are vertically movable. In the state in which the shielded portion is shielded, the insertion openings of the guide rails on both sides, both side ends in the width direction of the non-combustible sheet member, and both insertion ends of the movable plate portion of the second weight member are formed. The airtightness between them can be improved without forming a large gap between them, which makes it easy for hot air or the like to flow in and out.
[0088]
Therefore, when the shielded portion is shielded, the airtightness and fire resistance of the shielded portion can be improved as a whole by the non-combustible sheet body and the non-combustible weight body, and the hot air flows from one side to the other side of the shielded portion. Outflow and the like can be reliably prevented, and the diffusion and spread of smoke such as hot air can be prevented.
[0089]
In addition, with the non-combustible sheet body and the non-combustible weight body blocking the shielded part, the non-combustible sheet body bends under the pressure of the hot air at the time of fire, or shrinks upward due to the heat of the fire. When there is such a case, the first weight member of the non-combustible weight body is pulled up by the non-combustible sheet body in accordance with the amount of deflection and heat shrinkage of the non-combustible sheet body. Even if the first weight member is pulled up using the insertion port of the first weight member and the movable plate portion of the second weight member inserted through the insertion port as a guide, the second weight member Is not lifted by the first weight member, and the floor plate at the lower end of the movable plate portion of the second weight member continues to be air-tightly landed on the floor surface of the shielded portion. It is possible to reliably prevent hot air and the like from flowing out and in from between the spaces.
[0090]
Also, when the non-combustible sheet body is intensely pressed by the hot air at the time of a fire and the both ends of the non-combustible weight body are locked when the shielded portion is shielded, the second weight is also used. The member is not lifted by the first weight member, and the floor plate at the lower end of the movable plate portion of the second weight member continues to be air-tightly landed on the floor surface of the shielded portion, It is possible to reliably prevent a gap from being formed in an intermediate portion between the second weight member and the floor surface.
[0091]
Therefore, in a state where the shielded portion is shielded by the non-combustible sheet and the non-combustible weight, the non-combustible sheet is bent by receiving pressure exerted by hot air at the time of fire, or is thermally contracted upward by fire heat. Even in such a case, it is possible to improve the hermeticity of hermetically shielding the shielded portion and the fire resistance of shielding the shielded portion by preventing the inflow and outflow of the flame.
[0092]
Also, the first weight member is inserted into the insertion openings of the guide rails on both sides at both end portions so as to be able to move up and down, respectively, and the first weight member is closed between both end portions of the first weight member and the guide rail. Since the cover body is provided, the space between both ends of the first weight member and the guide rail can be closed by the closing cover body, and both ends of the first weight member and the guide rail are closed when the shielded portion is shielded. The hot air and the like can be prevented from flowing in and out of the space between them, and the airtightness between them can be improved.
[0093]
According to the invention of claim 2, in addition to the effect of the invention of claim 1, the insertion opening of the first weight member is a pair of bottom plates detachably attached to the first weight member. Since the opening is formed at the opposing ends of the pair of bottom plates, the insertion port can be easily formed at the opposing ends of the pair of bottom plates. At this time, one bottom plate is provided on one side of the first weight member. With the movable plate portion of the second weight member arranged along the end of the one bottom plate portion, the other bottom plate portion is attached to the other side of the first weight member, The movable plate portion of the second weight member can be easily lifted and lowered into an insertion opening formed by the end of the other bottom plate and the end of the one bottom plate.
[0094]
ContractRequest3According to the invention of claim1 or 2In addition to the effects of the invention, the first weight members are respectively protruded downward from both side portions of the first weight member, and are opposed to each other via the second weight member at the time of landing on the floor surface. The pair of non-combustible end sheets are separated from each other and land on the floor, so that when the shielded portion is shielded, the pair of non-combustible end sheets are separated from each other via the second weight member and expanded. The pair of non-combustible end sheets complements the second weight member closing the lower end portion of the non-combustible sheet body and the floor surface of the shielded portion. The space between the lower end portion of the noncombustible sheet member and the floor surface of the shielded portion can be more reliably airtightly closed via the second weight member.
[0095]
Further, the pair of non-combustible end sheets are hermetically landed on the floor via the second weight member, so that the pair of non-combustible end sheets can move the movable plate portion of the second weight member. It is possible to reliably prevent hot air and the like from flowing into and out of the insertion opening of the first weight member through which the first weight member is inserted.
[0096]
Further, in a state where the shielded portion is shielded by the non-combustible sheet body and the non-combustible weight body, the non-combustible sheet body bends under the pressure of the hot air at the time of a fire, or heats up due to fire heat. When the first weight member is contracted, the first weight member is pulled up by using the movable plate portion of the second weight member as a guide, but the second weight member is pulled up by the first weight member. The floor plate portion of the second weight member is continuously airtightly landed on the floor surface of the shielded portion, and the pair of non-combustible end sheets are continuously airtightly landed on the floor surface. The second weight member and the pair of non-combustible end sheets can surely prevent hot air or the like from flowing in and out from between the lower end portion of the non-combustible sheet member and the floor surface.
[0097]
Therefore, in a state where the shielded portion is shielded by the non-combustible sheet and the non-combustible weight, the non-combustible sheet is bent by receiving pressure exerted by hot air at the time of fire, or is thermally contracted upward by fire heat. Even when such a situation occurs, it is ensured that the airtightness of the second weight member closing the space between the second weight member and the floor surface with the pair of non-combustible end sheets landing on the floor surface is ensured. Can be more securely airtightly closed between the lower end of the non-combustible sheet body and the floor surface with the pair of non-combustible end sheets of the second weight member and the first weight member as a whole, It is possible to improve the hermeticity of airtightly shielding the shielded portion and the fire resistance of shielding the shielded portion by preventing the inflow and outflow of the flame.
[0098]
Claim4According to the invention of claim 1, in addition to the effect of the invention of claim 1, the landing plate portion of the second weight member is horizontally formed by the protruding plate portions protruding in opposite directions about the movable plate portion. Since the landing plate portion of the second weight member has landed on the floor surface, the landing plate portion can be stably and properly landed on the floor surface, and the movable plate portion on the landing plate portion is formed. The first weight member can be held vertically so as to be easily guided when pulled up.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a part of a refractory screen device showing one embodiment of the present invention.
FIG. 2 is a front view of the refractory screen device.
FIG. 3 is a side view of the same.
FIG. 4 is a partial cross-sectional plan view of the same.
FIG. 5 is a front view of a part of the above.
FIG. 6 is a perspective view of the same.
FIG. 7 is an end view of the noncombustible sheet member when it is lowered.
FIG. 8 is an end view of the incombustible weight body at the time of landing.
FIG. 9 is an end view of the incombustible weight body when it is pulled up.
[Explanation of symbols]
1 Guide rail
2 Covered part
3 insertion slot
16 floor
18 Non-combustible sheet
19 Incombustible weight
26 First weight member
27 Second weight member
30 insertion hole
31 Bottom plate
38 Closure cover
45 Non-combustible end sheet
50 insertion section
51 Movable plate
52 Retaining plate
53 Landing board
55 Projection plate

Claims (4)

A guide rail that is fixed to both sides of the shielded part and faces each other and has an insertion opening formed in the vertical direction, and both ends in the width direction are inserted into the insertion openings of the guide rails on both sides to ascend and descend. A non-combustible sheet body that is freely provided and shields the shielded part, and a non-combustible weight body that is provided at a lower end of the non-combustible sheet body and land on a floor surface of the shielded part,
The non-combustible weight body includes a first weight member fixed along a lower end portion of the non-combustible sheet body, and a second weight provided on the first weight member so as to be vertically movable. And a member,
The first weight member has an insertion opening that is opened along a lower end portion of the first weight member and penetrates the second weight member in a vertically movable manner.
The second weight member is movable up and down through an insertion opening of the first weight member, and has insertion portions at both end portions inserted into the insertion openings of the guide rails on both side portions so as to be vertically movable. A plate portion, a retaining plate portion formed at an upper end portion of the movable plate portion and abutting against an inner edge portion of the insertion opening to be prevented from being removed, and a stopper portion formed at a lower end portion of the movable plate portion and attached to the floor surface. a perforated with refractory screen device and destination floor portion for floors and,
The non-combustible sheet body is formed with a flat plate-shaped plate-shaped fixing portion that fixes the non-combustible weight body along a lower end portion,
The plate-shaped fixing portion has a flat plate-shaped body having an insertion protrusion that is inserted into the insertion opening of the guide rail so as to be movable up and down,
The first weight member is inserted into the insertion openings of the guide rails on both side portions at both end portions so as to be able to move up and down, respectively, and closes between the both end portions of the first weight member and the guide rail. Having an obstruction cover body,
The closing cover body abuts against both end portions of the weight plate of the first weight member and is fixed to both end portions of the weight plate, and a mounting plate portion orthogonal to the mounting plate portion. A closing plate portion, and an insertion plate portion inserted into the insertion opening of the guide rail 1 so as to be vertically movable;
The fire-resistant screen device , wherein the insertion plate portion is arranged along lower ends of both side ends of the plate-shaped fixing portion . An insertion opening of the first weight member is formed at opposing ends of a pair of bottom plate portions detachably attached to the first weight member.
The refractory screen device according to claim 1, wherein: The first weight members protrude downward from both sides of the first weight member, and separate from each other via the second weight member when landing on the floor surface and land on the floor. Having a pair of non-combustible end sheets,
The refractory screen device according to claim 1 or 2, wherein: The landing plate portion of the second weight member is formed horizontally with a protruding plate portion protruding in the opposite direction about the movable plate portion.
The refractory screen device according to claim 1, wherein:

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