JP6764729B2 - Fire protection sash - Google Patents

Description

The present invention relates to a fire protection sash arranged in a building opening.

As a raising and lowering type fitting to be arranged at the opening of a building, a fitting having a drum type balancer that assists in opening the shoji on the frame is known.

Japanese Patent No. 4570477

In the raising and lowering type fittings of Patent Document 1, a drum type balancer that assists in opening the shoji is arranged at an upper position of the frame, but the balancer is made of a resin material for slidability and abrasion resistance. And lubricants are often used, and in the event of a fire, the balancer may be ignited, causing the fire to spread indoors.

In view of the above circumstances, it is an object of the present invention to prevent the drum type balancer arranged in the raising and lowering window from being exposed to the flame in the event of a fire from the outdoor side, and to suppress the spread of the fire into the room. To do.

The invention according to claim 1 of the present application includes a frame body arranged in a building opening, a shoji screen arranged in the frame body, and a drum type balancer that assists the upward movement of the shoji screen that opens and closes in the vertical direction. , The drum type balancer is formed by attaching the parts constituting the drum type balancer to a metal plate member, and is fixed to a vertical frame so that the metal plate member is arranged on the inner peripheral side and closed. sometimes on the outer peripheral surface of the stile of the sash facing the drum type balancer, characterized in that the thermal expansion material expands toward the outer peripheral direction it is arranged.
The invention according to claim 2 of the present application includes a frame body arranged in a building opening, a shoji screen arranged in the frame body, and a drum-type balancer that assists the upward movement of the shoji screen that opens and closes in the vertical direction. , The drum type balancer is formed by attaching the parts constituting the drum type balancer to a metal plate member, and is fixed to a vertical frame so that the metal plate member is arranged on the inner peripheral side. A heat-expanding material that expands toward the drum-type balancer is arranged on the indoor side surface of the outdoor wall of the vertical frame to which the type balancer is fixed.

According to the configuration of the present invention, it is possible to suppress the ignition of the drum type balancer of the raising and lowering windows against a fire from the outdoor side.

It is a perspective view which looked at the fire prevention sash which concerns on embodiment of this invention from the indoor side. It is a vertical sectional view of the fire prevention sash which concerns on embodiment of this invention. It is a cross-sectional view of the fire prevention sash according to the embodiment of the present invention, the lower position which is opened and closed by the inner shoji is shown in the left vertical frame part, and the upper position where the outer shoji is fixed is shown in the right vertical frame part. It is a perspective view of the drum type balancer of the fire prevention sash which concerns on embodiment of this invention. It is a cross-sectional view of the right vertical frame of the fire prevention sash and the right vertical frame of the outer shoji according to the embodiment of the present invention, and (a) is a cross-sectional view of the lower part of the part where the drum type balancer is housed. b) is a cross-sectional view of a portion where the drum type balancer is housed. It is the figure of the upper right part of the fire prevention sash which concerns on embodiment of this invention, (a) is the front view which cut out a part, (b) is the figure which looked at the right vertical frame from the inner peripheral side. It is a perspective view of the upper right part of the fire prevention sash which concerns on embodiment of this invention. It is a figure of the right vertical stile of the outer sash of the fire prevention sash which concerns on embodiment of this invention, (a) is a view seen from the outer peripheral side, (b) is a sectional view of AA of (a). (C) is a cross-sectional view taken along the line BB of (a). It is a figure of the right vertical frame of the fire prevention sash which concerns on embodiment of this invention, (a) is a view seen from the indoor side, (b) is the CC sectional view of (a), (c). Is a cross-sectional view taken along the line DD of (a).

The fire prevention sash according to the embodiment of the present invention will be described with reference to the drawings.
(Overall composition)
As shown in FIG. 1, the fireproof sash according to the embodiment of the present invention includes a frame body 1 installed at a building opening, a shoji screen 3 arranged on the outdoor side of the frame body 1, and a chamber of the frame body 1. It is configured as a raising and lowering window composed of an internal shoji 2 that is arranged so that the inside can be raised and lowered in the vertical direction and opened and closed.

As shown in FIGS. 2 and 3, the frame body 1 is formed by assembling the upper frame 11, the lower frame 12 and the left and right vertical frames 13 and 14 in four circumferences, and the inner and outer shoji 2 and 3 are the upper stile 21 and 31, lower stiles 22, 32, left vertical stiles 23, 33 (not shown) and right vertical stiles 24, 34 are assembled in four circumferences, and a panel body is fitted in the inner circumference, and the outer shoji 3 is a frame. The sash 2 is fixed to the upper part of the outdoor side of the body 1 and is arranged so as to be vertically movable on the indoor side of the frame 1.
In the fire prevention sash of the present embodiment, the screen door 4 is arranged so as to cover the lower part of the frame 1 on the outdoor side of the outer sash 3.
The fireproof sash of the present invention is not limited to the raising and lowering window in which the outer sash is fixed to the frame body, but the inner sash may be fixed, and both the inner sash and the outer sash can be freely raised and lowered. It may be any sash, such as one that is used.

(Structure of frame)
-Upper frame-
As shown in FIG. 2, the upper frame 11 constituting the frame body 1 includes an upper frame main body 111 formed of a metal material such as aluminum and an indoor resin member 112 covering the inner peripheral surface of the upper frame main body 111 on the indoor side. I have.
The upper frame main body 111 has an upper wall portion 111a forming an inner peripheral surface of the opening, an outdoor wall 111b hanging from the outdoor end of the upper wall 111a, and a hanging hanging from the lower surface of the upper wall 111a near the outdoor side. It has a wall 111c and two locking pieces 111d and 111d formed on the lower surface of the upper wall portion 111a near the room to lock the indoor resin member 112, and is located substantially at the center of the upper wall portion 111a in the prospective direction. A balancer fixing bracket 113 for locking the drum type balancer 6 is fixed to the.
On the other hand, the indoor side resin member 112 is formed by extending the jaw portion 112b from the lower end of the indoor side of the hollow main body portion 112a formed by stacking the hollow portions in the vertical direction toward the indoor side, and the upper portion of the hollow main body portion 112a. On the indoor side and the outdoor side, locking claws 112c and 112c that are locked to the locking pieces 111d and 111d formed on the upper frame main body 111 are formed.

Then, the locking claws 112c and 112c of the indoor side resin member 112 are integrated by locking the locking pieces 111d and 111d of the upper frame main body 111, and the outdoor side wall 111b and the indoor side resin member 112 of the upper frame main body 111 are integrated. An upper groove portion 11a into which the upper end of the outer sash 3 is inserted is formed by the outdoor surface of the hollow main body portion 112a.
A heating expansion material 911a is arranged on the lower surface of the upper wall portion 111a of the upper frame main body 11, and is connected to an outdoor member 311 made of a metal material that expands in the event of a fire and constitutes the upper stile 31 of the outer sash 3. It fills and closes the space to prevent flames and the like from reaching the indoor resin member 112 arranged on the indoor side and the resin member constituting the upper stile 31 of the shoji 3 in the event of a fire from the outdoor side.

-Lower frame-
As shown in FIG. 2, the lower frame 12 constituting the frame body 1 is made of a metal material such as aluminum, has a hollow portion 121a on the outdoor side, and has a lower groove portion 12a that opens upward on the indoor side of the hollow portion 121a. It is formed by a lower frame main body 121 provided.
A resin cover member 122 is arranged on the upper surface of the hollow portion 121a of the lower frame main body 121, and an elastic member c1 provided at the lower end of the screen door 4 on the outdoor surface of the hollow portion 121a when the screen door 4 is closed. A contact piece 121b that comes into contact with the screen extends horizontally to the outside of the room.

The lower groove portion 12a is continuous with the upper ends of the first indoor side wall portion 121e and the first indoor side wall portion 121e extending above the indoor side of the outdoor side wall portion 121c, the bottom wall portion 121d, and the bottom wall portion 121d. It is composed of an intermediate bottom wall portion 121f extending to the inside and a second indoor side wall portion 121g extending upward from the indoor side end of the intermediate bottom wall portion 121f, and an internal shoji 2 is placed on the upper portion of the outdoor wall portion 121c. An elastic member c2 that comes into contact with the lower surface of the lower stile 22 when descending to the closed position is arranged.
A lower frame resin member 123 is attached to the outdoor side surface of the second indoor side wall portion 121 g, and a jaw portion 123a extends in the indoor direction at the upper end of the lower frame resin member 123.
Heat expansion materials 912a and 912b that expand by heating in the event of a fire are arranged on the indoor side surface of the outdoor wall portion 121c and the outdoor surface of the first indoor side wall portion 121e, and a lower frame main body made of a metal material in the event of a fire. The lower frame resin member 123 and the lower stile 22 of the inner sash 2 are expanded and closed between 121 and the outdoor member 211 of the inner sash 2 and flames and the like are arranged on the indoor side in the event of a fire from the outdoor side. It prevents it from reaching the constituent resin members.

-Vertical frame-
The left and right vertical frames 13 and 14 constituting the frame 1 basically have the same configuration, and in FIG. 3, the configuration at the upper position where the shoji 3 of the frame 1 is fixed is on the right. The vertical frame 14 shows the configuration of the lower position where the internal sash 2 opens and closes, and the left vertical frame 13 shows the configuration. Below, regarding the configuration of the left and right vertical frames 13 and 14, the configuration of the upper position is referred to the right vertical frame 14 (right side of FIG. 3), and the configuration of the lower position is the left vertical frame 13 (left side of FIG. 3). It will be explained with reference to.
As shown in FIG. 3, the left and right vertical frames 13 and 14 constituting the frame 1 are the left and right vertical frame main bodies 131 and 141 which are made of a metal material such as aluminum and have hollow portions 131a and 141a on the outdoor side. Left and right vertical frame resin members 132 and 142 which are made of resin material and are attached to the inner peripheral surface of the left and right vertical frame main bodies 131 and 141 on the indoor side of the hollow portions 131a and 141a and have a plurality of hollow portions 132a and 142a. The left and right vertical frame resin members 132 and 142 made of a resin material are provided with indoor side wall members 133 and 143 having hollow portions arranged on the indoor side.

The outdoor sides of the hollow portions 131a and 141a of the left and right vertical frame main bodies 131 and 141 are composed of outdoor wall 131b and 141b extending in the inner peripheral direction, and the screen door 4 is guided to the outdoor walls 131b and 141b. Right screen door rails 131c and 141c are projected. Further, on the indoor side surface of the hollow portions 131a and 141a, locking pieces 131d and 141d for locking the left and right vertical frame resin members 132 and 142 are formed.
The left and right vertical frame resin members 132 and 142 have a plurality of hollow portions 132a and 142a arranged adjacent to the hollow portions 131a and 141a of the left and right vertical frame main bodies 131 and 141, and the hollow portions 132a. , 142a are formed with locking claws 132c and 142c for locking to the locking pieces 131d and 131d of the left and right vertical frame main bodies 131 and 141, and the hollow portions 132a and 142a are formed on the indoor side of the hollow portions 132a and 142a. It has indoor recesses 132b and 142b that open in the inner peripheral direction.

Then, at the lower positions of the left and right vertical frames 13 and 14, as seen in the left vertical frame 13 of FIG. 3, the hollow portion 131a of the left vertical frame main body 131 and the hollow portion 132a of the left vertical frame resin member 132 are formed. A left vertical frame cover member 134 made of a metal material such as aluminum is arranged on the inner peripheral side.
The left vertical frame cover member 134 extends from the vicinity of the outdoor end of the hollow portion 131a of the left vertical frame main body 131 to the outdoor portion of the indoor recess 132b of the left vertical frame resin member 132 with the left vertical frame main body 131 and the left vertical frame. It has a cover member main body 134a that covers the inner peripheral surface of the frame resin member 132, and a hollow portion 134b that projects to the inner peripheral surface of the cover member main body 134a on the indoor side, and is left and right vertical on the indoor side surface of the hollow portion 134b. An airtight member s1 such as mohair provided on the vertical frame 23 of the inner shoji 2 that opens and closes the lower positions of the frames 13 and 14 comes into contact with each other to form an outdoor airtight line between the frame and the shoji at the lower position of the vertical frame. are doing. Further, on the indoor side of the hollow portion 134b, a holding portion 134c that holds the heat-expanding material 913b that expands by heating toward the indoor side surface of the hollow portion 134b and the outdoor surface of the vertical frame 23 of the internal shoji 2 extends. Has been done.

Further, the indoor side recess 132b of the left vertical frame resin member 132 and the indoor side wall member 133 form a left guide groove 13a for guiding the guide member 22b protruding laterally from the lower stile 22 of the inner sash 2. A heat expansion material 913a is arranged on the outdoor surface of the indoor side recess 132b forming the left guide groove 13a.
Then, the heat expansion material 913a arranged on the outdoor side of the indoor recess 132b fills and closes the indoor recess 132b, and in the event of a fire from the outdoor, flames and the like are arranged on the indoor side of the left vertical frame 13. It is prevented from reaching the resin member constituting the side wall member 133 and the left vertical frame 23 of the internal shoji 2.

On the other hand, at the upper positions of the left and right vertical frames 13 and 14, as seen in the right vertical frame 14 of FIG. 3, the right vertical frame cover member 144 is not arranged, and above the right vertical frame cover member 144. The right vertical stile 34 of the outer cover 3 will be arranged at the position.
Then, the outer peripheral surface of the right vertical frame 34 of the outer shoji 3 fixed at the upper position of the right vertical frame 14 is the inner peripheral side of the hollow portion 141a of the right vertical frame main body 141 and the hollow portion 142a of the right vertical frame resin member 142. The airtight material s2 arranged on the outdoor side of the right vertical frame 34 comes into contact with the indoor side surface of the outdoor wall 141b of the right vertical frame main body 141, so that the frame and the shoji are placed above the vertical frame. Forming an outdoor airtight line.
The opening in the inner peripheral direction of the indoor side recess 142b of the right vertical frame resin member 142 is closed by the resin cover member 145, and the heat expansion material 914a is arranged on the outdoor side surface of the indoor side recess 142b.

-Upper stile of shoji-
As shown in FIG. 2, the upper stile 31 constituting the outer sash 3 is a composite stile composed of an outdoor member 311 made of a metal material such as aluminum and having a hollow portion and an indoor member 312 made of a resin material and having a hollow portion. The panel frontage 31a is formed on the inner circumference by the outdoor side member 311 and the indoor side member 312.
A contact piece 311a extends upward along the longitudinal direction at the upper end of the outdoor member 311 on the indoor side, and hits the hanging wall 111c of the upper frame 11 in a state where the outer sash 3 is fixed. I'm in contact. Further, an airtight material is arranged on the outdoor surface of the outdoor member 311 toward the outdoor wall 111b of the upper frame 11, and at a position below the airtight material, heat expands toward the outdoor wall 111b of the upper frame 11. The material 931a is arranged to block the outdoor side of the upper frame 11 and the upper stile 31 of the outer shoji 3 in the event of a fire to prevent flames and the like from entering the indoor side.

-Lower stile of shoji-
The lower stile 32 constituting the outer sash 3 is a sash for the outer sash 3 in the raising and lowering window, and as shown in FIG. 2, the lower stile main body 321 made of a metal material such as aluminum and having a hollow portion 321a It is made of a resin material and is composed of an indoor side wall member 322 that is attached to the indoor side surface of the lower stile main body 321 to form a panel frontage 32a. The indoor side wall surface of the lower stile main body 321 receives a crescent by a fixing means such as a screw. 82 is fixed.
At the lower end of the lower stile body 321 on the indoor side, a smoke return piece 321b that forms a smoke return toward the indoor side is projected, and the smoke return piece 321b is airtight so as to abut on the upper stile 21 of the internal shoji 2. An airtight material holding portion 321c for holding the material toward the indoor side is formed.
Then, the lower surface of the lower stile 32 constituting the outer sash 3 is placed on the upper surface of the support means made of a metal material fixed to the left and right vertical frames 13 and 14 of the frame body 1, so that the outer sash 3 is placed. It is fixedly arranged at the position above the outdoor side of the frame body 1.

-Vertical stile of shoji-
Since the left and right vertical stiles 33 and 34 constituting the external sash 3 have substantially the same configuration, the vertical stile of the external sash 3 will be described here using the right vertical stile 34.
As shown in FIG. 3, the right vertical frame 34 constituting the outer sash 3 has an outdoor member 341 made of a metal material such as aluminum and having a hollow portion 341a and an indoor member 342 made of a resin material and having a hollow portion 342a. The panel frontage 34a is formed on the inner peripheral side by the outdoor side member 341 and the indoor side member 342.
An airtight material s2 that abuts on the outdoor wall 141b of the right vertical frame 14 is arranged on the outdoor surface of the outdoor member 341.

-Upper stile of shoji-
The upper stile 21 constituting the sash window is a sash window for the sash window 2, and as shown in FIG. 2, the outdoor member 211 made of a metal material such as aluminum and having a hollow portion and a resin material. The interior side member 212 including the hollow portion is formed as a composite frame, and the panel frontage 21a is formed on the inner circumference by the outdoor side member 211 and the indoor side member 212.
A smoke return piece 211a forming a smoke return together with the lower stile 32 of the outer sash 3 is formed on the outdoor surface of the outdoor member 211, and a smoke return piece 211a is formed above the smoke return piece 211a and below the outer sash 3. The heat expansion material 921a is arranged toward the indoor side surface of the stile 32.
The indoor side member 212 is attached so as to cover from the upper surface of the hollow portion of the outdoor member 211 to the indoor side, and is arranged so that a plurality of hollow portions are lined up on the indoor side of the hollow portion of the outdoor member 211. A crescent lock 81 is attached to the upper surface of the inner member 212.
Then, the heat expanding material 921a arranged on the upper stile 21 of the inner sash 2 expands toward the lower stile 32 of the outer sash 3 in the event of a fire, closes the mating portions of the inner and outer sashes 2 and 3, and the inner sash. It prevents the flame from reaching the indoor side member 212 made of the resin material constituting the upper stile 21 of 2.

-Lower stile of shoji-
As shown in FIG. 2, the lower stile 22 constituting the inner sash 2 includes an outdoor member 221 made of a metal material such as aluminum and having a hollow portion 221a, and an indoor member 222 made of a resin material and having a hollow portion 222a. The panel frontage 22a is formed on the inner circumference by the outdoor side member 221 and the indoor side member 222.
A guide member 22b protrudes to the left in the lower portion of the outdoor member 221 of the lower stile 22, and is guided in the vertical direction along the left guide groove 13a of the left vertical frame 13.

-Vertical stile of shoji-
Since the left and right vertical stiles 23 and 24 constituting the inner sash 2 have substantially the same configuration, the vertical stile of the outer sash 2 will be described here using the left vertical stile 23.
As shown in FIG. 3, the left vertical frame 23 constituting the outer sash 2 has an outdoor member 231 made of a metal material such as aluminum and having a hollow portion 231a and an indoor member 232 made of a resin material and having a hollow portion 232a. The panel frontage 23a is formed by the outdoor side member 231 and the indoor side member 232 on the inner peripheral side.
The outdoor surface of the outdoor member 231 is close to the indoor side surface of the hollow portion 134b of the left vertical frame cover member 134, and the airtight member s1 such as mohair arranged on the outdoor surface of the outdoor member 231 is used as the left vertical frame cover member. By contacting the hollow portion 134b of 134 with the indoor side surface, an airtight line is formed between the vertical frame 13 and the vertical frame 23 of the inner sash 2.
In the event of a fire, the heat expansion material 913b held by the holding portion 134c of the left vertical frame cover member 134 is made of a hollow portion 134b of the left vertical frame cover member 134 made of a metal material and a metal material of the vertical frame 23 of the inner shoji 2. It expands toward the airtight member s1 such as mohair between the outdoor member 231 to prevent communication between the indoor and outdoor, and the indoor side wall of the left vertical frame 13 in which the flame or the like from the outdoor side is arranged on the indoor side. It prevents the member 133 and the inner sash 2 from reaching the resin member constituting the left vertical frame 23.

(Drum type balancer)
In the raising and lowering windows of the present embodiment, drum-type balancers 6 and 6 for assisting the opening and closing of the internal shoji 2 are arranged at positions above the left and right vertical frames 13 and 14 constituting the frame body 1.
In the following description, a drum type balancer arranged in the right vertical frame will be used.
As shown in FIG. 4, the drum type balancer 6 has a rectangular shape as a whole, and the tip of the wire 612 wound around the drum 611 is fixed to the internal shoji 2 to have an urging force to wind the wire 612. It is a device that assists in opening the internal sash 2, and is a well-known device.
The drum type balancer 6 of the present embodiment is formed by supporting a member constituting the balancer on a plate member 62 made of a metal material, and each member supported by the plate member 62 is a box-shaped case made of a resin material. It is formed by being covered with a member 61. The upper end portion of the plate member 62 is provided with a locking portion 62a for fixing the drum type balancer 6 to the upper frame 11, and the drum type balancer 6 is screwed and fixed to the vertical frame 14 at the lower position of the case member 61. A fixing hole 61a is formed for this purpose.
Most of the members constituting the drum type balancer 6 are made of a resin material such as a drum 611 for winding a wire, and the weight of the drum type balancer 6 is reduced.

As seen in FIG. 5A, the right vertical frame 14 on which the drum type balancer 6 is arranged is composed of a right vertical frame main body 141 made of a metal material and a right vertical frame resin member 142 made of a resin material. However, in the upper portion where the drum type balancer 6 is housed, the right vertical frame main body 141 constituting the right vertical frame 14 is cut out leaving the outer peripheral wall portion and the outdoor wall 141b of the right vertical frame main body 141, and is right. The vertical frame resin member 142 is cut, and a notch portion 14a for accommodating the drum type balancer 6 is formed.
Then, as shown in FIG. 6A, a balancer fixing bracket 113 having a hook portion 113a is attached to a position above the cutout portion 14a of the upper frame 11 constituting the frame body 1, and the cutout portion is provided. The drum type balancer 6 is brought closer to 14a from the lower part on the inner peripheral side, and the locking portion 62a formed at the upper end of the plate member 62 of the drum type balancer 6 is locked to the hook portion 113a and is attached to the case member 61. By fixing the drum type balancer 6 to the vertical frame 14 by a fixing means such as a screw through the formed fixing hole 61a, the drum type balancer 6 is formed in the cutout portion 14a as shown in FIGS. 5 (b) and 6 (b). Can be placed in.

Then, after connecting the wire 612 of the drum type balancer 6 arranged in the cutout portion 14a of the vertical frame 14 to the internal shoji 2 and adjusting the urging strength of the drum type balancer 6, as shown in FIG. , The balancer cover 146 is attached from the inner peripheral side of the right vertical frame 14.
In the raising and lowering window of the present embodiment, since the outer sash 3 is fixedly arranged on the upper part of the outdoor side of the frame body 1, the inner peripheral surface of the outdoor side of the drum type balancer 6 in the prospective direction is the outer sash 3. It is covered with a vertical frame 34, and the balancer cover 146 is mounted on the inner peripheral surface of the right vertical frame 14 on the indoor side in the finding direction.
To attach the balancer cover 146, insert the locking piece 144a at the lower end of the balancer cover 146 into the lower end of the notch portion 14a formed in the vertical frame 14 (arrow X), and rotate the upper portion toward the vertical frame 14. (Arrow Y) This can be done.
As shown in FIG. 5B, the drum type balancer 6 arranged in the cutout portion 14a of the right vertical frame 14 is located in the upper portion of the right vertical frame 14 over substantially the entire prospective direction. Assists when opening the shoji 2.

Here, as shown in FIGS. 5A, 8A, and 8C, the right vertical frame 34 of the outer shoji 3 facing the inner peripheral surface of the right vertical frame 14 on which the drum type balancer 6 is arranged. A heating expansion material 934a that expands due to heating in the event of a fire is arranged on the outer peripheral surface of the outdoor member 341, and the expanded heating expansion material 934a is placed on the inner peripheral surface of the right vertical frame main body 141 of the right vertical frame 14. By reaching and closing the space between the metal member of the frame 1 and the metal member of the outer shoji 3, it is possible to prevent communication between indoors and outdoors in the event of a fire.
However, in the upper portion of the right vertical frame 14 where the drum type balancer 6 is arranged facing the cutout portion 14a, the hollow portion 141a of the right vertical frame main body 141, which is a metal member, is notched and expanded. The 934a cannot be filled between the right vertical frame main body 141 and the inner peripheral surface, and is diffused in the notch portion 14a to efficiently close the gap between the frame body 1 and the outer sash 3.
In addition, since the drum type balancer 6 is composed of many resin parts, it can hold the heat expansion material 934a which is exposed to the flame invading through the gap between the outer sash 3 and the frame 1 and melts down and expands. It disappeared, and there was a possibility that it would ignite and spread indoors.

Therefore, in the raising / lowering window of the present embodiment, as shown in FIG. 5B, when the drum type balancer 6 is housed in the notch portion 14a of the right vertical frame 14, the drum type balancer 6 is made of metal. The plate member 62 is arranged so as to be located on the inner peripheral side of the right vertical frame 14 so as to cover the inner peripheral side of the component, and in the upper portion where the drum type balancer 6 is arranged, FIG. 8A is shown. , (B), a heating and expanding material 934b that expands toward the drum type balancer 6 is arranged over the outer peripheral surface of the outdoor member 341 of the right vertical frame 34 of the outer sash 3 and the indoor side member 342. There is.
As described above, by arranging the metal plate member 62 of the drum type balancer 6 on the inner peripheral side, in the event of a fire, the drum type balancer is opposed to the flame that invades from between the vertical frame and the vertical frame of the shoji. It is possible to prevent the resin component of No. 6 from being directly exposed to the flame and protect it. Further, the heating expansion material 934b expands toward the plate member 62 of the drum type balancer 6 due to heating at the time of fire, and the balancer fixing bracket 113 of the upper frame 11 is directly attached to the plate member 62 of the drum type balancer 6. Therefore, the heat expansion material 934b that has reached the plate member 62 can prevent the resin component from melting and chipping.
Then, the expanded heating and expanding material 934b can block the space between the frame body 1 and the shoji 3 to suppress the spread of fire, and can protect the resin parts of the drum type balancer 6 from the flame.

On the other hand, as shown in FIGS. 5 (b), 9 (a), and 9 (b), the heat expansion material 914a is arranged on the outdoor side surface of the indoor side recess 142b of the right vertical frame resin member 142 in the right vertical frame 14. However, in the notched portion 14a of the right vertical frame 14, a heat expansion material 914b is arranged on the indoor side surface of the outdoor wall 141b of the right vertical frame main body 141 of the right vertical frame 14 so as to face the drum type balancer 6. ing.
The heat expansion material 914b arranged on the indoor side surface of the outdoor wall 141b of the right vertical frame 14 is substantially the entire inner peripheral surface of the outdoor wall 141b of the right vertical frame main body 141 at a portion corresponding to the notch portion 14a of the right vertical frame 14. The drum type balancer 6 can be attached by an adhesive or the like before being arranged.
By arranging the heat expansion material 914b on the indoor side surface of the outdoor wall 141b of the right vertical frame main body 141, the heat of the flame of the fire generated on the outdoor side is easily transmitted to the heat expansion material 914b via the outdoor wall 141b, and the heat of the fire At an early stage, the drum type balancer 6 expands toward the drum type balancer 6, and the outer peripheral side portion of the drum type balancer 6 from the plate member 62 is wrapped with a heating expansion material from the outdoor side, and the resin parts of the drum type balancer 6 are exposed from the flame. Can be protected.
Further, even when the resin component protected by the plate member 62 made of a metal material is melted by heating, the heat expansion material that encloses the non-resin component can prevent the resin material from leaking to the inner peripheral side.

As described above, in the raising and lowering fittings of the present embodiment, even when the drum type balancer containing many resin parts is arranged in the vertical frame, the plate member for fixing the parts of the drum type balancer is made of a metal material. The metal plate formed by the above is arranged so that the metal plate is on the inner peripheral side in the vertical frame, and the vertical stile is expected to be on the outer peripheral surface of the fixed shoji facing the part where the drum type balancer is arranged. By arranging the heat expansion material toward the metal plate over a wide range of, the resin member of the drum type balancer is prevented from being directly exposed to the flame by the plate member arranged on the inner peripheral side, and further, the fire Since the heat-expanding material that sometimes expands expands between the metal member between the metal plate fixed to the frame and the shoji, the gap between the frame and the shoji is not affected by the resin parts melting down. Can be closed.

In addition, since a heat-expanding material that expands toward the drum-type balancer is placed on the indoor side surface of the outdoor wall of the part where the drum-type balancer of the frame is arranged, the outdoor is heated early in the event of an outdoor fire. The heat expansion material expands due to the heat of the side wall, and in the early stage of a fire, the drum type balancer containing the resin parts can be covered with the expanded heat expansion material, and the resin parts leak to the inner circumference side or ignite due to melting. It is possible to suppress the spread of fire due to fire.

In the present embodiment, the explanation is given by taking as an example a raising and lowering window in which the outer sash is fixed at an upper position of the frame and the inner sash is arranged so as to be openable and closable. A heat-expanding material is placed on the outer peripheral surface of the vertical frame of the outer sash facing the upper position of the frame to be placed, but the raising and lowering window may be the one in which the inner sash is fixed in the upper position, or inside, The outer sash may be opened and closed, and if the heat expansion material can be placed on the outer peripheral portion of the sash facing the position where the drum balancer is placed in the closed state, the sash on which the heat expansion material is placed can be either inside or outside. However, it may be either a fixed shoji or an openable and closable shoji.
In addition, the attachment of the heat-expanding material to the frame or frame is not limited to sticking with an adhesive or the like, but can also be attached by forming and holding a holder or the like, and the attachment method is limited. It is not something that is done.

1: Frame body 11: Upper frame 11a: Upper groove portion 111: Upper frame main body 111a: Upper wall portion 111b: Outdoor wall 111c: Hanging wall 111d: Locking piece 112: Indoor resin member 112a: Hollow main body portion 112b: Jaw portion 112c: Locking claw 113: Balancer fixing bracket 113a: Hook portion 12: Lower frame 12a: Lower groove portion 121: Lower frame main body 121a: Hollow portion 121b: Contact piece 121c: Outdoor wall portion 121d: Bottom wall portion 121e: First Indoor side wall 121f: Intermediate bottom wall 121g: Second indoor side wall 122: Cover member 123: Lower frame resin member 123a: Jaw 13: Left vertical frame 13a: Left guide groove 131: Right vertical frame body 131a: Hollow part 131b: Outdoor wall 131c: Right screen door rail 131d: Locking piece 132: Left vertical frame resin member 132a: Hollow part 132b: Indoor recess 132c: Locking claw 133: Indoor side wall member 134: Left vertical frame cover member 134a: Cover Member body 134b: Hollow part 134c: Holding part 14: Right vertical frame 14a: Notch part 141: Right vertical frame body 141a: Hollow part 141b: Outdoor wall 141c: Right screen door rail 141d: Locking piece 142: Right vertical frame resin Member 142a: Hollow portion 142b: Indoor recess 142c: Locking claw 143: Indoor side wall member 144: Right vertical frame cover member 144a: Locking piece 145: Resin cover member 146: Balancer cover 2: Internal screen 21: Upper stile 21a : Panel frontage 211: Outdoor member 211a: Smoke return piece 212: Indoor side member 22: Lower stile 22a: Panel frontage 22b: Guide member 221: Outdoor member 221a: Hollow part 222: Indoor side member 222a: Hollow part 23: Left vertical stile 23a: Panel frontage 231: Outdoor member 231a: Hollow part 232: Indoor side member 232a: Hollow part 24: Right vertical stile 3: Outer screen 31: Upper stile 31a: Panel frontage 311: Outdoor member 311a: This Contact piece 312: Indoor side member 32: Lower stile 32a: Panel frontage 321: Lower stile body 321a: Hollow part 321b: Smoke return piece 321c: Airtight material holding part 322: Indoor side wall member 33: Left vertical stile 34: Right vertical stile 34a: Panel frontage 341: Outdoor member 341a: Hollow part 342: Indoor side member 342a: Hollow part 4: Screen door 6: Drum type balancer 61: Case member 61a: Fixing hole 611: Drum 612: Wire 62: Plate Member 62a: Locking portion 81: Crescent lock 82: Crescent receiver 911a: Heat expansion material 912a: Heat expansion material 912b: Heat expansion material 913a: Heat expansion material 913b: Heat expansion material 914a: Heat expansion material 914b: Heat expansion material 921a : Heat expansion material 931a: Heat expansion material 934a: Heat expansion material 934b: Heat expansion material

Claims (2)

It is equipped with a frame placed in the opening of the building, a shoji placed inside the frame, and a drum-type balancer that assists the upward movement of the shoji that opens and closes in the vertical direction.
The drum type balancer is formed by attaching the parts constituting the drum type balancer to a metal plate member, and is fixed to a vertical frame so that the metal plate member is arranged on the inner peripheral side.
A fitting characterized in that a heat-expanding material that expands toward the outer circumference is arranged on the outer peripheral surface of the vertical stile of the shoji that faces the drum-type balancer when closed . It is equipped with a frame placed in the opening of the building, a shoji placed inside the frame, and a drum-type balancer that assists the upward movement of the shoji that opens and closes in the vertical direction.
The drum type balancer is formed by attaching the parts constituting the drum type balancer to a metal plate member, and is fixed to a vertical frame so that the metal plate member is arranged on the inner peripheral side.
A fitting characterized in that a heat-expanding material that expands toward the drum-type balancer is arranged on the indoor side surface of the outdoor wall of the vertical frame to which the drum-type balancer is fixed.

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