JPH1136740A - Fire protection structure for sliding door device - Google Patents

Abstract

(57) [Summary] [Object] To provide a fire protection structure in a sliding door device using a fire door. [Structure] A tape-shaped heat-foaming material is adhered to a door opening of a door body of a sliding door device or a predetermined position of a gap communicating between the inside and outside of a room via a heat conductive member formed of a heat conductive material. Configuration.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire prevention structure for a sliding door device.

[0002]

2. Description of the Related Art Heretofore, it has been known that a door itself has a fire prevention structure. For example, as disclosed in Japanese Patent Application Laid-Open No. Hei 7-324561, there has been proposed a fire prevention door capable of providing a fire prevention structure using wood as a main material. Have been.

[0003] Therefore, in buildings, especially hospitals and other buildings where the general public enters and exits, it is obligatory that doors at various places be made of fire doors. However, steel doors are heavy, Wooden fire doors mainly made of wood as described above are welcomed because of other difficulties.

[0004]

In a sliding door apparatus constituted by a wooden fire door, the door body is generally retracted into a door pocket when opened by horizontal movement, while the door stop end face of the door body is closed when closed. Is checked against the vertical frame of the door frame. In order to reduce the impact at the time of abutment, a groove is formed on the end surface of the door stop, and a cushioning material is attached to the opening of the groove.
In the closed state, the tail edge of the door main body is overlapped with the lead-in edge of the door pocket. In order to enable horizontal movement of the door body, the door body is suspended from the upper frame of the door frame via a traveling device. Further, in order to guide the lower end of the door main body during the horizontal movement, a guide groove is formed in the lower end surface of the door main body, and the attitude control roller is brought into rolling contact with the guide groove.

[0005] Since the door body constitutes a fire door as described above, in the event of a fire, the door body promises flame retardancy against heat from the wall direction of the door body, and the fire from room to room can be prevented. To prevent.

[0006] However, wooden fire doors guarantee flame retardancy against heat received on the wall surface, but the flame retardancy is not sufficient on the lip end, and there is a risk that the flammable may burn inward from the lip end. is there. For example, the door stop surface of the door body exposes the groove when the cushioning material is burned out in the event of a fire, and there is a risk of burning toward the inside of the door body from there. In addition, since a guide groove for rolling the attitude control roller is formed on the lower end surface of the door main body, there is a risk of burning toward the inside of the door main body therefrom.

Furthermore, apart from the combustion of the door main body, the sliding door device has a gap around the door main body to communicate inside and outside of the room. Can not. For example, an upper edge suspended by the traveling device is inserted into a passage in an upper frame of a door frame, and the passage forms a gap that connects the inside and outside of the room. Further, there is a gap between the lower end surface of the door body guided by the attitude control roller and the floor surface. Further, in the closed state, the tail edge of the door main body is merely overlapped with the draw-in guide edge of the door pocket, so that there is a gap therethrough for communicating the inside and outside of the room.

As described above, although the wooden fire door has a fire-retardant wall surface, there is a risk that the wooden fire door may burn inward from the exposed cleave surface. There is a problem that flames and smoke cannot be cut off because there are gaps for communicating the air everywhere, leaving many problems to be solved.

[0009]

SUMMARY OF THE INVENTION The present invention provides a fire prevention structure in a sliding door apparatus which solves the above-mentioned problems, and the first means is constituted by an upper edge of a horizontally movable door body. Wherein the sliding door device is inserted in a passage formed between a pair of passage walls in the upper frame of the door frame, wherein at least one of mutually opposing wall surfaces of the upper edge of the door main body and the passage wall is provided. Is formed by fixing a tape-like heat-foaming material along the wall surface.

Further, according to the present invention, as a second means, the door body which is movable horizontally while the upper portion is suspended, forms a guide groove along the lower end surface, and the guide groove has a posture. In a sliding door device in which a control roller is rolled and contacted, a heat conductive member formed of a heat conductive material is fitted in the guide groove, and a tape-shaped heat foam material is fixed along the heat conductive member. It is in.

Further, the present invention is configured as a third means, wherein the horizontally movable door body forms a groove along a door stop end face which is brought into abutment with a vertical frame of the door frame when closed. In a sliding door device in which a cushioning material is attached to an opening of a groove, a heat conductive member formed of a heat conductive material is fitted in the groove, and a tape-shaped heat foam material is fixed along the heat conductive member. It is in the point.

Further, the present invention is configured as a fourth means, wherein the door body is retracted into the door pocket at the time of opening by horizontal movement, while the tail edge of the door body is overlapped with the draw-in guide edge of the door pocket at the time of closing. , A tape-like heat-foaming material is fixed along at least one of the mutually opposing wall surfaces of the tail end edge of the door main body and the draw-in guide edge of the door pocket.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIGS. 1 to 3, the sliding door device comprises a door frame unit 1 and a door main body 2 constituting a fire door, and the door main body 2 is mounted on the door frame unit 1 so as to be horizontally movable. .

The door frame unit 1 comprises a pair of vertical frames 3, 4,
A substantially gate-shaped frame comprising an upper frame 5 connecting the vertical frames 3 and 4 is constructed, and has a door pocket 6 for retracting the door main body 2 when opened by horizontal movement. In the illustrated example, the door pocket 6 is a pocket-type door pocket that retracts and stores the door main body 2, but may be a single door pouch that retracts the door main body 2 and superimposes it.

(Structure of the upper frame of the door frame) As shown in FIG. 2, the upper frame 5 is arranged between upper frames 5a and 5a which are arranged in parallel at intervals inside and outside, and between the vertical frames 3 and 4. The rail mounting member 10 is provided, and the transom panels 8, 8 are provided so as to cover the rail mounting material 10 below the upper frame 5a. The transom panels 8, 8 are provided with reinforcing portions 5b at lower ends. , 5b, and constitutes a passage for inserting the upper edge of the door body 2 between the reinforcing portions 5b, 5b.

As shown in FIG. 4, a pair of transom panels 8,
In the housing constituted by 8, a rail mounting member 10 is installed in the longitudinal direction of the housing via seats 9 provided on the vertical frames 3, 4, and provided on the rail mounting member 10. It has a fixed rail 11 and a movable rail 13 slidably supported on the fixed rail 11 via a rolling member 12 such as a ball, and a door hanger 14 is suspended from the movable rail 13. I have. On the other hand, a suspending member 15 is projected from the upper end surface of the door main body 2, and the suspending member 15 is locked to the door hanger 14. Therefore, the door main body 2 is hung on the moving rail 13 via the hanging member 15 and the door hanger 14, and the door main body 2 is configured to be horizontally movable by sliding of the moving rail 13. By the way, the hanging member 15 is a headed nut 15a inserted from the inside into the wood opening frame 35b of the door main body 2, and a headed bolt which is inserted through the hanging member 15 and is screwed to the above-mentioned nut 15a. Fifteen
By b, it is being fixed to the wooden edge frame 35b.

Mounting seats 16 and 16 are fixedly provided on both sides at both longitudinal ends of the rail mounting member 10, and the rail panels 8 are supported by the mounting seats 16 and 16. At least one of the transom panels 8, 8 is detachable from the mounting seat 16, and the housing can be opened and closed. Although not shown, the door body 2 is connected to a self-closing device that is automatically closed after being opened. The self-closing device includes a weight suspended inside the door pocket 6 and the weight. It is made of a wire or the like that causes the weight of the weight to act in the direction to close the door body 2. Furthermore, when the door body 2 is closed by the self-closing device,
A self-closing brake cylinder 17 for controlling the closing speed is provided, and the self-closing brake cylinder 17 is provided on the door hanger 14 as shown in FIG.

(Structure of the vertical frame of the door frame) As shown in FIG. 3, the vertical frame 3 has an inner member 19 formed with a receiving groove 18 for receiving the door stop end face of the closed door body 2, and the inner member 19 And an outer member 20 which is provided on the outside and forms the vertical frame 3 in a hollow column shape. On the other hand, the door main body 2 has a groove 21 formed along the end surface of the door that is reciprocally received in the receiving groove 18, and a cushioning member 22 made of an elastic strip such as a rubber molding is formed in an opening of the groove 21. Installed. Therefore, when the door main body 2 is closed, the end surface of the door stop enters the receiving groove 18 of the vertical frame 3, and the cushioning material 22 abuts against the groove bottom of the receiving groove 18.

(Configuration of Door Frame of Door Frame) As shown in FIGS. 3 and 5, the door pocket 6 is disposed on both sides of the vertical frame 4 to form a pair of door pocket panels 23, 23 forming a pocket-type door pocket chamber.
By forming the extended ends of the door pocket panels 23, 23 into substantially L-shape, the guide opening forming parts 24, 24 forming the opening of the door pocket chamber are formed, and the guide opening forming part 2 is formed.
Reinforcing members 25, 25 are fixedly superposed on the inside of the doors 4, 24, and the pair of reinforcing members 25, 25 are formed so as to be bent and formed so as to face the opening of the door pocket room.
It has. At this time, the retraction guide edge 26 is formed of the reinforcing material 25 as shown in the figure, and the guide opening forming portion 2 is formed.
4 may be formed by extension. As shown in FIG. 3, a column box 27 is provided inside the door pocket panels 23, 23, and the weight 28 of the self-closing device described above is stored in one column box 27.

Therefore, when the door body 2 is opened by horizontal movement, the door body 2 is drawn into the door pocket chamber from the opening of the door pocket 6 and stored. At this time, the tail end face of the door main body 2 is supported by a door stop member 29 provided inside the vertical frame 4. On the other hand, when the door main body 2 is closed, the tail edge of the door main body 2 is overlapped with the lead-in guide edges 26, 26.

(Configuration Regarding Posture Control of Door Body) In order to prevent swinging of the door body 2 during horizontal movement and to guide smooth horizontal movement of the door body 2, the floor surface near the opening of the door pocket 6 is provided. Is provided with a posture control roller 30. As shown in FIG. 6, a seat member 32 is fixed to the floor surface by fixing means 31 including an anchor bolt and a nut, and the attitude control roller 30 is rotated around the longitudinal axis of the seat member 32 by a shaft member 33. It is supported rotatably.

On the other hand, the door main body 2 has a guide groove 34 formed along the lower end surface. The attitude control roller 30 is inserted into the guide groove 34, and both side walls of the guide groove 34 are formed. Face the attitude control roller 30. Therefore, when the door body 2 moves horizontally, the attitude control rollers 30
Are rolled in contact with the groove wall to prevent the swinging of the door body 2 suspended by the movable rail 13 and to allow the rollers 30 to roll to allow the door body 2 to move smoothly and horizontally.

(Construction of Door Body) The door body 2 includes a core plate 35a made of paulownia wood, and a wood opening frame 35b made of a hardwood such as a South Sea material fixed in a frame shape around the core plate 35a. And a non-combustible surface panel 36 is fixed to both surfaces of the core 35 to form a sandwich-structured plate. The front panel 36 can be formed of, for example, a bonding material of phenol foam and decorative plywood, and is fixed to the surface of the core 35 with an adhesive and / or a screw, a tucker needle, or the like. Paulownia wood is not only excellent in terms of lightness, flame retardancy and smokelessness, but also has good heat insulating properties, excellent cooling and heating effects, excellent moisture resistance and humidity control effects, and furthermore, it has no insect bite, so core board By using the paulownia wood as 35a, such advantages of the paulownia wood can be utilized. In addition, cutting and other processing are extremely easy without causing cracks or irregularities. In the illustrated example, a laminated board made of three paulownia materials is formed.

As shown in FIG. 1, it is optional to provide the door body 2 with accessories such as a handle 37 and a locking device 38, and to provide a window 39 made of glass with a wire mesh for fire prevention.

(Fireproof Structure at Upper Edge of Door Body) As described above, the upper frame 5 of the door frame unit 1 is provided with reinforcing portions 5b,
A passage for inserting the upper edge of the door main body 2 is formed between 5b. That is, as shown in FIG. 4, a passage is formed between the pair of passage walls 40, 40 provided in the reinforcing portions 5b, 5b,
The upper edge of the door body 2 is inserted into the passage.

The passage walls 40, 40 are provided with heat conducting members 41, 41 formed in a groove shape in cross section by a heat conducting material, and the groove opening of the heat conducting member 41 is formed on the upper edge side of the door body 2. It faces the wall. Heat conduction member 41
It is preferable to use a metal material such as an extruded material such as an aluminum alloy or a bent material such as an iron plate, for example, so that the thermal conductivity is good. In the case of the illustrated example, the heat conducting member 41 is fixed to the passage wall 40 at the groove bottom by a fixing tool 42 such as a flathead screw. Then, a tape-shaped heating foam material 43 is fixed along the groove bottom of the heating conduction member 41. This heated foam 4
The fixing of 3 can be performed by a bonding means such as a double-sided adhesive tape or an adhesive.

Therefore, in the event of a fire, the heat conducting member 41 having heat conductivity easily heats up, and the heating foam 43 is heated and foamed, whereby the passage wall 40 and the upper edge of the door main body 2 are connected to each other. Close the gap between them. At this time, the heating and foaming material 43 is heated and foamed by the heat conducting member 41, foams in a direction to increase the thickness of the foaming material 43 and increases in volume, and is formed on the side wall surface of the upper edge of the door body 2. Crimp. That is, the foam that has been heated and foamed is pressed against the side wall surface of the upper edge of the door body 2 while the base portion is constrained by the groove of the heat conducting member 41, and the foamed body is spread and adheres. Therefore, the gap between the passage walls 40, 40 and the door main body 2 is completely closed by the heat-foamed heating foam materials 43, 43, and the upper frame 5
To prevent the intrusion of flame or smoke into the housing formed between the side panels 8.

By the way, in the illustrated embodiment, the heat conducting members 41 provided with the heating foam material 43 are connected to the passage wall 4.
0, 40, but one of the passage walls 40
May be provided only for Further, the heat conducting member 41 provided with the heating foam material 43 is provided on the side wall surface of the upper edge portion of the door main body 2,
The groove opening may be opposed to the passage wall 40. In short,
What is necessary is just to provide along the at least one wall surface among the wall surfaces which the upper edge of the door main body 2 and the passage wall 40 oppose. Furthermore, as in the illustrated embodiment, in the case where the passage walls 40, 40 are formed by a part of the metal transom panels 8, 8, the passage walls 40 themselves have good thermal conductivity. Instead of using 41, the tape-shaped heated foam material 43 may be directly adhered to the passage wall 40.

(Fireproof Structure at Lower Edge of Door Body) As described above, the guide groove 34 is formed on the lower end surface of the door body 2, and the attitude control roller 30 is inserted into the guide groove 34.

As shown in FIG. 6B, the guide groove 34
A heat conducting member 44 formed in a groove shape in cross section by a heat conducting material is fitted therein. It is preferable to use a metal material such as an extruded material such as an aluminum alloy or a bent material such as an iron plate for the heat conducting member 44, so that the heat conductivity is good.
Although not shown, the heat conducting member 44 is fixed to the groove bottom of the core 35 by a fixing tool such as a flathead screw.
Then, a tape-shaped heating foam material 45 is fixed along the groove bottom of the heating conduction member 44. The fixing of the heated foam material 45 can be performed by an adhesive means such as a double-sided adhesive tape or an adhesive.

Therefore, in the event of a fire, the heat conducting member 44 having thermal conductivity easily heats up and the heating foam 45 is heated and foamed.
Of the door main body 2 and close the gap between the lower end surface of the door main body 2 and the floor surface. At this time, the heating foam 45
The heating and foaming is promoted by the heating conductive member 44, the foaming material 43 foams in the direction of increasing the thickness, increases the volume, and is pressed against the floor surface. In other words, the foam that has been heated and foamed, while the base is constrained by the groove of the heat conducting member 44, presses the foamed protruding end against the floor surface and then spreads and adheres in a planar manner. Therefore, the opening at the lower end of the door body 2 is covered with the foamed heated foam material 45, and the gap between the lower end of the door body 2 and the floor is closed. Shut off flames and smoke.

(Fire Prevention Structure at Door Stop of Door Body) As described above, the door body 2 forms the groove 21 along the door stop end face which is brought into contact with the vertical frame 3 of the door frame unit 1 when closed. The cushioning material 22 is attached to the opening of the groove 21.

As shown in FIG. 6A, a heat conducting member 46 formed in a groove shape by a heat conducting material is fitted in the groove 21. The heat conducting member 46 is preferably made of a metal material such as an extruded material such as an aluminum alloy or a bent material such as an iron plate, and has good thermal conductivity. In the illustrated example, the heat conducting member 46 has a groove-shaped cross section as a whole by combining a pair of divided members 46a, 46a formed in an L-shaped cross section, but may be formed integrally. Although not shown, the heat conducting member 46 is fixed to the groove bottom of the core 35 with a fixing tool such as a flathead screw. Then, tape-shaped heating foam materials 47, 47 are fixed along both groove wall portions of the heating conduction member 46. The fixing of the heat foaming material 47 can be performed by an adhesive means such as a double-sided adhesive tape or an adhesive.

Therefore, when a fire occurs, the heat conducting member 46 having heat conductivity easily heats up, and the heating foam members 47, 47 are heated and foamed, so that the grooves of the heating conducting member 46 are filled. That is, the heating foam 45
Is heated and foamed by the heat conducting member 46, and fills the groove of the heat conducting member 46 to form a heat insulating layer along the door stop edge of the door body 2.

(Fireproof Structure at Tail End of Door Body) As described above, the door body 2 is retracted into the door pocket 6 when opened, and the tail edge is inserted into the lead-in guide edges 26 of the door pocket 6 when closed. It is polymerized. The door body 2 is always closed by the self-closing device.

As shown in FIG. 5, the lead-in guide edge 26,
Heating members 48, 48 formed in a groove shape in cross section by a heat conductive material are provided at 26, and the groove openings of the heat conducting member 48 are opposed to the side wall surface of the tail end of the door main body 2. . The heat conducting member 48 is preferably made of a metal material such as an extruded material such as an aluminum alloy or a bent material such as an iron plate, so that the thermal conductivity is good. In the case of the example shown in FIG.
6, a wide channel member 48a fixed to 6 and a pair of an L-shaped groove forming member 48b fixed to the vicinity of one end of the channel member 48a by welding or the like are combined to form an overall groove shape. They may be formed integrally. Then, a tape-shaped heating foam material 50 is fixed along the groove bottom of the heating conduction member 48. The fixing of the heated foam material 50 can be performed by an adhesive means such as a double-sided adhesive tape or an adhesive.

Therefore, when a fire occurs, the heat conducting member 48 having heat conductivity easily heats up, and the heating foam material 50 is foamed by heating, so that the retraction guide edge 26 and the tail end of the door main body 2 are connected to each other. Close the gap between the two. At this time, the heat foaming material 50 is heated and foamed by the heat conducting member 48, foams in a direction to increase the thickness of the foaming material 50, and increases in volume, and is formed on the side wall surface of the tail end of the door body 2. Crimp. That is, the foam that has been heat-foamed has its base at the heat conducting member 48.
While being constrained by the groove, the foamed protruding end is pressed against the side wall surface of the tail end of the door main body 2 so as to be closely spread and spread. Therefore, the gap between the draw-in guide edges 26, 26 and the door main body 2 is completely closed by the heated and foamed heating foam materials 50, 50 and shuts off the flame and smoke from entering the door pocket room of the door pocket 6. .

In the illustrated embodiment, the heat conducting members 48, 48 provided with the heating foam material 50 are provided on each of the lead-in guide edges 26, 26, but may be provided on only one of the lead-in guide edges 26. good. Further, the heat conducting member 48 provided with the heating foam material 50 may be provided on the side wall surface of the tail end of the door main body 2, and the groove opening may be opposed to the lead-in guide edge 26. In short, the tail end of the door main body 2 What is necessary is just to provide along at least one wall surface among the wall surfaces which the edge and the lead-in guide edge 26 oppose. Further, as shown in the illustrated embodiment, the retraction guide edge 2
In the case where 6 is made of metal, since the pull-in guide edge 26 itself has good thermal conductivity, the tape-like heating foam material 50 is directly adhered to the pull-in guide edge 26 without using the heat conducting member 48. May be.

[0040]

Conventionally, wooden fire doors have a flame-retardant wall surface, but there is a risk of burning inward from the exposed cleave surface. Because there is a gap that can communicate with everywhere, there is a problem that it is not possible to block fire and smoke,
According to the present invention, the tape-shaped heating foam material 4 is provided at a predetermined position of such a wooden surface or a gap that connects the inside and outside of the room.
3, 45, 47, and 50 are fixed, so that in the event of a fire, the door body 2 is preferably insulated and protected from heat to prevent the door body 2 from burning from the door surface. By blocking such gaps, there is an effect that flames and smoke can be suitably blocked.

Further, according to the present invention as set forth in claim 2 or 3, the heat conducting members 41, 4 formed of a heat conducting material.
4, 46, 48, the tape-like heated foam material 43, 4
With a configuration in which 5, 47, and 50 are fixed, when a fire occurs, the heat conducting members 41, 44, and 4 having thermal conductivity can be used.
6, 48 are easily heated to a high temperature, and the heated foam materials 43, 45, 4
It promotes 7,50 heat foaming, which is particularly excellent in that it guarantees rapid and reliable foaming of the heat-foamable material, and promises the expected insulation cutoff.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of a sliding door device of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a longitudinal sectional view showing an embodiment of a fire protection structure at the upper edge of the door body.

FIG. 5 is a cross-sectional view showing an embodiment of the fire protection structure at the tail end of the door body.

FIG. 6 shows a door stop end and a lower end of a door body;
(A) is a cross-sectional view showing an embodiment of a fire prevention structure at an end of a door stop, and (B) is a longitudinal sectional view showing an embodiment of a fire prevention structure at a lower end.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door frame unit 2 Door main body 3, 4 Vertical frame 5 Upper frame 6 Door pocket 21 Groove part 22 Buffer material 26 Retraction guide edge 30 Attitude control roller 34 Guide groove 40 Passage wall 41, 44, 46, 48 Heat conducting member 43, 45, 47, 50 Heated foam

 ────────────────────────────────────────────────── ─── Continued on front page (72) Inventor Koji Watai 731-2 Katamachi Ichimachida, Tsu-shi, Mie Pref. Katada Industrial Estate Co., Ltd.

Claims (4)

[Claims] 1. A sliding door device wherein an upper edge of a horizontally movable door body is inserted into a passage formed between a pair of passage walls in an upper frame of a door frame, wherein the upper edge of the door body is provided. A fire prevention structure in a sliding door device, characterized in that a tape-like heating foam material is fixed along at least one of the mutually opposing wall surfaces of the wall and the passage wall. 2. A sliding door device comprising: a door main body which is horizontally movable while an upper portion is suspended, forms a guide groove along a lower end surface, and has an attitude control roller rollingly contacted with the guide groove. A fire prevention structure in a sliding door device, characterized in that a heat conducting member formed of a heat conducting material is fitted in the guide groove, and a tape-like heating foam material is fixed along the heat conducting member. 3. A sliding door device wherein a horizontally movable door body has a groove formed along a door stop end face which is brought into contact with a vertical frame of a door frame when closed, and a cushioning material is attached to an opening of the groove. 3. The fire prevention structure for a sliding door device according to claim 1, wherein a heat conductive member formed of a heat conductive material is fitted in the groove, and a tape-shaped heat foam material is fixed along the heat conductive member. 4. A sliding door device in which a door body is retracted into a door pocket when opened by horizontal movement, and a tail edge of the door body is overlapped with a leading guide edge of the door pocket when closed, wherein the tail edge of the door body and the door pocket are retracted. A fire prevention structure in a sliding door device, characterized in that a tape-like heating foam material is fixed along at least one of the wall surfaces facing each other with a guide edge.