JPH08333965A - Reinforcing core material connecting structure of fireproof unit - Google Patents

Abstract

PURPOSE: To prevent a reinforcing core material for forming a fireproof stile of a fireproof door from being bent and deformed in the longitudinal direction by its thermal elongation. CONSTITUTION: A connecting fitting 54 is connected to the upper side of a reinforcing core material 43 for forming a fireproof stile 13 by a screw passed through an oblong hole. The connecting fitting 54 is connected to the lower surface of the outside core material 23 of a reinforcing core material 24 for forming a fireproof upper rail 11 to form a gap between the lower surface of the outside core material 23 and the upper end surface of the reinforcing core material 43. The thermal elongation of the reinforcing core material 43 is absorbed by the gap to prevent the reinforcing core material from being bent and deformed in the longitudinal direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof frame in a fireproof unit in which a fireproof door is attached to a fireproof frame, and a structure for connecting reinforcing cores so that the fireproof door is not deformed by thermal expansion.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 5-125 discloses a fire protection unit.
As shown in Japanese Laid-Open Patent Publication No. 874, a plurality of horizontal / vertical fireproof frame members are connected to form a fireproof frame having a door mounting opening, and a fireproof door frame in which a plurality of horizontal / vertical fireproof frames are connected is provided with heat resistance. It is known that an excellent glass is attached to form a fire door, and the fire door is attached to a door attachment opening of a fire frame so as to be openable and closable.

The fireproof frame material and the fireproof frame are made by attaching a fireproof plate to the outer surface of a steel reinforcing core material, and coating the fireproof plate with a decorative material made of aluminum. The fireproof frame is formed by connecting the reinforcing cores, and the fireproof door is formed by connecting the reinforcing cores of the vertical and horizontal fire fences.

With such a fireproof unit, the surfaces of the fireproof frame and the fireproof door are covered with a decorative material made of aluminum, and the appearance is good, and even if the decorative material melts during a fire, a reinforcing core material and a fireproof material are used. Since the plate does not melt and the glass does not come off, smoke does not flow to one room and the other room partitioned by the fire protection unit.

[0005]

In such a fireproof unit, the reinforcing core material does not melt at the time of a fire, but since it is made of steel, it is stretched by heat and both ends in the longitudinal direction are fixed and do not move. Therefore, the reinforcing core material does not move. Is bent in the longitudinal direction.

For this reason, there is a case where a smoke is circulated due to a gap formed between the fire prevention frame material forming the door mounting opening of the fire prevention frame and the fire prevention frame forming the fire prevention door.

Therefore, an object of the present invention is to provide a reinforcing core material connecting structure for a fire protection unit, which is capable of solving the above-mentioned problems.

[0008]

SUMMARY OF THE INVENTION A first aspect of the present invention is to connect a vertical and horizontal fireproof frame member and have a door mounting opening.
The fire door is composed of a fire door in which glass is attached to a fire door frame in which vertical and horizontal fire fences are connected, and the fire door is configured to be openably and closably attached to the door mounting opening of the fire frame. The fireproof frame is made by attaching a fireproof plate to the outer surface of the reinforcing core material, and covering the outer surface with an aluminum decorative material.The vertical fireproof frame reinforcing core material has a connecting metal fitting, and the upper part is the reinforcing core. Longitudinal and horizontal reinforcing cores are fixed by projecting from the longitudinal end face of the material and connecting so as to be movable in the longitudinal direction, and the upper part of this connecting metal fitting is fixed to the lower surface of the longitudinal end of the reinforcing core material of the horizontal fire fence. Reinforcement core material connection structure of connected fire prevention units. A second invention is provided with a fireproof frame having vertical and horizontal fireproof frame members connected to each other and having a door mounting opening, and a fireproof door in which glass is attached to a fireproof door frame which is connected to vertical and horizontal fireproof frames. In this fireproof unit in which the fireproof door is openably and closably attached to the door mounting opening of the fireproof frame, a vertical fireproof frame material that constitutes the mounting opening portion of the fireproof frame, and a fireproof plate on the outer surface of the reinforcing core material Mounting, the outer surface of which is covered with a decorative material made of aluminum, and the connecting metal fittings can be relatively moved in the longitudinal direction at the upper end of the reinforcing core material of the vertical fireproof frame material, from the upper end surface of the reinforcing core material. Connected by projecting upward, the horizontal fire protection frame material in the fire protection frame shall be made by covering the steel main body with aluminum decorative material, and dividing the main body by the vertical fire protection frame material connection part, and dividing it Reinforcement core material of the fire protection frame material by fixing the connecting metal fitting across the main body Reinforcing core connection structure of fire protection units connecting the reinforcing core member of the vertical fire frame member.

[0009]

[Operation] According to the first aspect of the present invention, a gap between the longitudinal end face of the reinforcing core material of the vertical fire protection frame and the lower surface of the reinforcing core material of the horizontal fire protection frame, and the vertical reinforcing core material are the metal fittings. On the other hand, by being movable in the longitudinal direction, the heat expansion of the vertical reinforcing core material is absorbed and the longitudinal reinforcing core material is not bent and deformed in the longitudinal direction. According to the second aspect of the present invention, the reinforcing core material of the vertical fireproof frame material can be moved in the longitudinal direction with respect to the connecting metal fitting, and the connecting metal fitting is fixed to the main body of the horizontal fireproof frame material. It absorbs the heat expansion of the material and prevents it from bending in the longitudinal direction.

[0010]

[Examples] As shown in FIG. 1, a rectangular glass mounting is made by the upper frame 1 of the fire, the vertical vertical frames 2 and 2 of the left and right, the lower frame 3 of the fire, the fireless eyes 4, and the right and left fireproof cubes 5, 5. A fireproof frame 8 having a plurality of openings 6 for doors and having a downward U-shaped door-attaching opening 7 is formed, and a glass 9 is attached to the glass-attaching opening 6 to open the door-attaching opening. Part 7 has a pair of fire doors 1
0 and 10 are attached to be openable and closable to form a fire protection unit. The fire door 10 includes a fire prevention upper frame 11 and a fire prevention lower frame 1.
A glass 15 is mounted in a fire door frame 14 composed of 2 and left and right fire stiles 13, 13. The glasses 9 and 15 are excellent in heat resistance such as foamed glass, low expansion glass, and crystallized glass.

As shown in FIG. 2, the upper fire proof frame 11 and the lower fire proof frame 12 are a pair of inner and outer steel channel members 2 made of steel.
Steel plates 21 on the inside and outside surfaces of 0 and 20
And a reinforcing core member 24 made of a steel outer core member 23 fixed to the outer peripheral surface of the outer channel member 20. A fireproof plate 25 is provided on the indoor and outer surface of the core member 22. The interior is fixed and the exterior of the outer surface is covered with a decorative material 26 made of aluminum.

Plates 2 on the indoor side and the outdoor side of the fire protection upper frame 11
1 and the fireproof plate 25 project inward from the channel material 20 inside to form a glass mounting recess 27, and the glass 15 is mounted by a sealing material 28.

A support piece 29 made of steel is attached to the projecting end of each plate 21, and the support piece 29 projects into the recess 27 for glass attachment to support the sealing material 28 with the decorative material 26. Even if the decorative material 26 melts, the sealing material 28
To prevent the glass 15 from coming off.

The plate 21, the fireproof plate 25, and the decorative material 26 on the indoor side of the lower fire protection frame 12 are located at substantially the same position as the inner peripheral surface of the inner channel material 20 and fixed to the inner peripheral surface of the inner channel material 20. A steel retaining ridge 31 is attached to a steel plate 30 with a long screw, and an aluminum decorative ridge 32 is detachably attached between the retaining ridge 31 and the decorative material 26 to form a glass mounting recess. 27 is formed.

Because of this, the glass 15 can be replaced, and the glass 15 can be held by the holding ridge 31 so as not to come off when the decorative ridge 32 is melted.

As shown in FIG. 3, in the fireproof vertical frame 13, steel plates 41 are fixed to the inner side surface and the outer side surface of a pair of steel channel members 40, and an outer channel member 4 is provided.
Reinforcement core 43 with a steel plate 42 fixed to 0
The refractory plates 44 are attached to the inner side surface and the outer side surface of the reinforcing core member 43, and the outer surface on the indoor side and the outer surface on the outdoor side are covered with a decorative material 45 made of aluminum.

The plate 41 and the fireproof plate 44 project inward from the channel material 40 inside to form a glass mounting recess 46, and the glass 15 is attached by a sealing material 47. The steel support piece 48 is the same as the fire protection upper frame 11.
Is attached so that the glass 15 does not come off even if the decorative material 45 melts.

Next, the connecting structure of the reinforcing core member 24 of the fire protection upper frame 11 and the reinforcing core member 43 of the fire protection vertical frame 13 will be described. As shown in FIG. 4, the outer core member 23 forming the reinforcing core member 24 of the fire protection upper frame 11 projects in the longitudinal direction more than the core member 22, and the inner channel member 20 in each plate 21 forming the core member 22.
A hook-shaped notch 50 is formed in a portion projecting inward, and each plate 4 constituting the reinforcing core member 43 of the fire protection vertical frame 13 is formed.
1, a hook-shaped notch 51 is formed inward of the channel member 40 in the upper part of the plate member 4.
A pair of upper and lower elongated holes 52 and 53 are formed in the upper and lower portions of the inner and outer channel members 40, and the elongated hole 52 of the plate 42 is wide.

A connecting metal fitting 54 is fitted in the hollow portion of the reinforcing core member 43 of the fireproof vertical frame 13, and screws 55 are screwed through the elongated holes 53 of the inner and outer channel members 40, as shown in FIGS. As shown in the drawing, the connecting fitting 54 is projected and fixed slightly above the upper end surface 43a of the reinforcing core member 43. As shown in FIG. 7, the head of the screw 55 is inserted into the long hole 52 of the plate 42 so as not to project from the plate 42.

As shown in FIGS. 5 and 6, the upper surface of the connecting fitting 54 is fixed to the lower surface of the projecting portion of the outer core member 23 of the fire protection upper frame 11 with screws 56, and the lower surface and the reinforcing core member 43.
A gap t is formed between the upper end surface 43a of the core material 22 and the end surface 22a of the core material 22 contacts the inner peripheral surface of the reinforcing core material 43, and the vertical surface 50a of the cutout portion 50 of the plate 21 contacts the support piece 48. Plate 21,
A gap t is formed between the lower surface 50b and the upper surface 51a of the cutout portions 50 and 51 of 41.

Because of this, when the reinforcing core material 43 of the fire protection vertical frame 13 is thermally expanded, a gap t is formed with respect to the connecting fitting 54.
The reinforcing core material 43 does not bend and deform in the longitudinal direction.

The decorative material 45 of the fireproof vertical frame 13 projects to the outer core member 23 of the fireproof upper frame 11 as shown by the phantom line in FIG. 5, and the decorative material 26 of the fireproof upper frame 11 is shown by the phantom line in FIG. As shown in the drawing, the decorative material 45 is contacted.

The fire protection upper frame 1 and the fire protection vertical frame 2 are shown in FIGS.
As shown in Fig. 5, the inner surface and the outer surface of the main body 60 made of steel are covered with an aluminum decorative material 61. The main body 60 made of steel is formed by bending a thin plate to form an inward concave portion 62 and hook-shaped portions on both sides. It has a sectional shape having a piece 63.

As shown in FIG. 8, the fireproof blind 4 has a fireproof plate 67 on the outer surface of a reinforcing core material 66 to which a U-shaped steel channel material 64 and an L-shaped steel channel material 65 are fixed. Are attached, and they are covered with a decorative material 68 made of aluminum on the indoor side and the outdoor side, and a door-contact seal 69 is provided on the lower surface of the door mounting opening 7 side, and on the opposite upper surface thereof. A glass mounting recess 70 is formed, and the glass 9 is attached to the inward recess 62 of the fire protection upper frame 1 and the glass mounting recess 70 with a sealing material 71.

As shown in FIG. 9, the fireproof cubicle 5 has a fireproof plate 74 attached to the outer surface of a reinforcing core member 73 to which a pair of U-shaped channel members 72 made of steel are fixed. The outer surface of the outdoor side is covered with a decorative material 75 made of aluminum. The door-contacting sealing material 76 is mounted on the inner surface of the door mounting opening 7 side, and the glass mounting recess 77 is mounted on the opposite outer surface. The glass 9 is attached to the concave portion 62 of the fire protection vertical frame 2 and the concave portion 77 for glass attachment with the sealing material 78.

The door-stop sealing materials 69 and 76 are made of the fireproof plate 6.
The decorative material 68 is attached to a steel L-shaped piece 80 fixed to a steel plate 79 fixed to 7, 74.
Even if 75 is melted, the door stop sealing materials 69 and 76 are prevented from coming off.

Next, the connecting structure of the main body 60 of the fireproof upper frame 1 and the reinforcing core material 73 of the fireproof cube 5 will be described. As shown in FIG. 10, the connecting metal fitting 81 is connected to the upper portion of the reinforcing core material 73 of the fireproof blind 5. The connecting fitting 81 includes a horizontal piece 81a and both side vertical pieces 8a.
By 1b, the reinforcing core member 73 of the fire protection cube 5 has a downward U-shape that fits on the inside and outside surfaces of the reinforcing core member 73, and vertical slots 81b on both sides of the reinforcing core member 73 are formed with a plurality of vertically elongated holes 82 at intervals in the longitudinal direction. The upper end portion of the reinforcing core material 73 of the fire prevention cubicle 5 is connected to the metal fitting 8
1, and the upper end surface 73a of the reinforcing core 73 and the horizontal piece 8
A screw 83 is inserted between the elongated holes 82 of the vertical strips 81b on both sides, and is screwed into a screw hole 84 of the reinforcing core member 73 to be connected as shown in FIGS. 11 and 12.

As shown in FIG. 10, the main body 60 of the fire protection upper frame 1
Is divided into two parts at the connecting part of the fire protection cube 5, and the main body 60
A cutout portion 85 that matches the cross-sectional shape of the channel material 72 that constitutes the reinforcing core material 73 of the fire protection cube 5 is formed on the end surface of the main body 60 and the end surface of the other body 60.

Then, the reinforcing core material 73 and the connecting metal fitting 81
Insert both main body 60 into the
a is brought into contact with the bottoms of the recesses 62 of both main bodies 60 and welded to fix the connecting fitting 81 over both main bodies 60.

Because of this, since the reinforcing core material 73 of the fire protection cube 5 moves upward with respect to the connecting fitting 81 when it thermally expands, the reinforcing core material 73 does not bend in the longitudinal direction, and the fire door It is possible to prevent a smoke from flowing due to a gap formed between the fireproof vertical frame 13 and the fireproof vertical frame 13.

Note that the decorative material 75 of the fire prevention cubicle 5 projects to the fire prevention upper frame 1 as shown by the phantom line in FIG.
As shown in phantom lines in FIG. 11, the decorative material 61 is a fire protection cube 5
It hits the cosmetic material 75 of.

Next, the main body 60 of the fireproof vertical frame 2 and the fireproof blind 4
The connecting structure of the reinforcing core material 66 will be described. As shown in FIG. 13, a pair of upper and lower brackets 9 are attached to the main body 60 of the fire protection vertical frame 2.
0 is attached with a bolt 91, and the pair of upper and lower brackets 9
The reinforcing core material 66 of the fireproof blind 4 is inserted between 0, the screw 93 is screwed into the screw hole 94 through the long hole 92 formed in the bracket 90, and the end surface 66a of the reinforcing core material 66 and the main body 6 are connected.
A gap is formed with 0.

As a result, the thermal expansion of the reinforcing core material 66 of the fireproof seamless 4 is absorbed to prevent the bending deformation in the longitudinal direction.

[0034]

According to the first aspect of the present invention, there is a gap between the longitudinal end face of the reinforcing core material of the vertical fireproof frame and the lower surface of the reinforcing core material of the horizontal fireframe, and the vertical reinforcing core material is provided. Is movable in the longitudinal direction with respect to the connecting fitting, so that when the vertical reinforcing core material is thermally expanded, it does not bend and deform in the longitudinal direction. Therefore, there is no gap between the vertical fireproof frame material forming the door mounting opening of the fireproof frame and the vertical fireproof frame of the fireproof door, and smoke does not flow during a fire.

According to the second aspect of the invention, since the reinforcing core material of the vertical fireproof frame member can be moved in the longitudinal direction with respect to the connecting metal fitting, and the connecting metal fitting is fixed to the main body of the horizontal fireproof frame material. When the heat expansion of the reinforcing core material is performed, the reinforcing core material is not bent and deformed in the longitudinal direction. Therefore, there is no gap between the vertical fireproof frame material forming the door mounting opening of the fireproof frame and the vertical fireproof frame of the fireproof door, and smoke does not flow during a fire.

[Brief description of drawings]

FIG. 1 is a front view of a fire protection unit showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a fire door.

FIG. 3 is a cross-sectional view of a fire door.

FIG. 4 is an exploded perspective view of a connecting portion between a reinforcing core member of a fireproof upper frame and a reinforcing core member of a fireproof vertical frame.

FIG. 5 is a front view of the connected state.

FIG. 6 is a side view of the connected state.

FIG. 7 is a sectional view taken along line AA of FIG. 5;

FIG. 8 is a vertical sectional view of a fire protection frame.

FIG. 9 is a cross-sectional view of a fire protection frame.

FIG. 10 is an exploded perspective view of a connecting portion between the main body of the fireproof upper frame and the fireproof cubic reinforcing core material.

FIG. 11 is a front view of a connected state.

FIG. 12 is a side view of the connected state.

FIG. 13 is an exploded perspective view of a connecting portion between the main body of the fireproof vertical frame and the fireproof seamless reinforcing core material.

[Explanation of Codes] 1 ... Fireproof upper frame, 2 ... Fireproof vertical frame, 3 ... Fireproof lower frame, 4 ... Fireproof blind, 5 ... Fireproof cubic, 7 ... Door mounting opening, 10 ... Fire door, 11 ... Fireproof upper frame, 12 ... Fireproof lower frame, 13 ... Fireproof vertical frame, 14 ... Fireproof door frame, 15 ... Glass, 22 ... Core material, 23
... outer core material, 24 ... reinforcement core material, 25 ... fireproof plate, 26 ... decorative material, 43 ... reinforcement core material, 44 ... fireproof plate, 45 ... decorative material,
54 ... Connection metal fittings, 60 ... Main body, 61 ... Decorative material, 73 ... Reinforcing core material, 74 ... Fireproof plate, 75 ... Decorative material, 81 ... Connection metal fittings, 91 ... Bracket.

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Shigeo Kokubo 4-6-15 Sendagaya, Shibuya-ku, Tokyo Fujita Co., Ltd. 72) Inventor Isao Yokotani 5-1-9 Negishi, Urawa City, Saitama Prefecture

Claims (2)

[Claims] 1. A fireproof frame having vertical and horizontal fireproof frame members connected to each other to have a door mounting opening, and a fireproof door frame having vertical and horizontal fireproof frames connected to each other and having glass attached thereto. In a fireproof unit in which a fireproof door is openably and closably attached to a door mounting opening of a fireproof frame, a fireproof frame that constitutes the fireproof door is attached to the outer surface of a reinforcing core material with a fireproof plate, and those outer surfaces are made of aluminum. The vertical metal fittings of the fireproof frame are connected with a metal fitting, the upper part of which is projected from the longitudinal end face of the reinforcing core so as to be relatively movable in the longitudinal direction. A reinforcing core material connecting structure for a fire protection unit, characterized in that the vertical and horizontal reinforcing core materials are connected to each other by fixing to the underside of the longitudinal end of the reinforcing core material of the horizontal fire fence. 2. A fireproof frame having vertical and horizontal fireproof frame members connected to each other and having a door mounting opening, and a fireproof door frame having vertical and horizontal fireproof frames connected to each other and having glass attached thereto. A fireproof unit in which a fireproof door is openably and closably attached to a door mounting opening of a fireproof frame, in which a vertical fireproof frame material constituting the mounting opening of the fireproof frame is attached, and a fireproof plate is attached to an outer surface of a reinforcing core material. , The outer surface of which is covered with aluminum decorative material, and the connecting metal fittings can be moved in the longitudinal direction relative to the upper end of the reinforcing core of the vertical fire protection frame, and the upper part of the upper surface of the reinforcing core can be moved. To connect to the fire protection frame, the horizontal fire protection frame material in the fire protection frame is a steel body covered with an aluminum decorative material, the body is divided by the vertical fire protection frame material connecting portion, the divided Reinforcement core material of the fire protection frame material by fixing the connecting metal fitting across the main body A reinforcing core material connecting structure for a fire prevention unit, characterized in that a reinforcing core material for connecting a vertical fireproof frame material is connected.