KR20190033177A - Fire door frame coupling structure of complex layer - Google Patents

Abstract

[0001] The present invention relates to a fire door frame coupling structure of a composite structure, and more particularly, to a fire door frame structure having a structure capable of greatly increasing the supporting force and strength of a side edge portion of a fire door, So as to improve the blocking effect and prevent the spread of fire.
Particularly, the present invention does not constitute a separate retaining structure, and by joining and folding the edges of the front panel and the rear panel of the fire door, the engaging portion is formed into two or more layers to improve the supporting force and strength, It is possible to improve the bending stress and torsional stress, which are represented by the sum of the stress and tensile stress, and minimize the deformation of the fire door by the external force.
Accordingly, it is possible to improve reliability and competitiveness in the field of fire doors and fire door reinforcement structures, in particular, corner reinforcement structures of fire doors, as well as similar or related fields.

Description

FIELD OF THE INVENTION The present invention relates to a fire door frame,

The present invention relates to a combined structure of a fire door frame of a composite structure, and more particularly, to a fire door frame structure that can greatly improve the supporting force and strength of a side portion of a fire door, So as to improve the blocking effect and prevent the spread of fire.

Particularly, the present invention does not constitute a separate retaining structure, and by joining and folding the edges of the front panel and the rear panel of the fire door, the engaging portion is formed into two or more layers to improve the supporting force and strength, The present invention relates to a combined structure of a fire door frame having a composite structure capable of improving bending stress and torsional stress, which are represented by the sum of stress and tensile stress, and minimizing deformation of a fire door by an external force.

Fire doors are designed to block and delay the spread of flames and smoke in the event of a fire. Unlike ordinary doors, functional surfaces must be considered as the most important consideration, and they are mainly made of metal, taking fire resistance and manufacturing costs into consideration.

In particular, various types of reinforcing structures are applied to the corner portion of the hinged portion and the hinge portion where the key cylinder is mounted, the hinge is attached, so that the fire door can withstand various shocks externally applied.

For example, Korean Unexamined Patent Publication No. 10-0954551 entitled " Prior Art 1 " (hereinafter referred to as " Prior Art 1 " 0823367 'Welded window frame connection structure having a corner stiffener connection structure, window structure using the same, and method of manufacturing the same' (hereinafter, referred to as 'Prior Art 2') are used for a corner connection structure of a frame forming an outline of a fire door .

In the case of the prior art 1, the fixture is inserted into the fitting groove of the frame to closely contact the partition, and then the two adjacent frames are connected through the bolt connection. In this structure, the fixture merely connects the two frames. .

In the case of the prior art 2, although a separate frame reinforcing member is formed at the corner portion, an opening is formed in the corner portion of the frame for attaching the frame reinforcing member, and a cover is additionally joined. Able to know.

On the other hand, in the frame structure shown in the prior art, it can be easily seen that the frames are produced by extrusion molding.

However, extrusion molding is a method used for processing materials that are easily deformed by heat, such as synthetic resin and aluminum (including alloys), and these materials are unsuitable for use as a fire door that must withstand high temperatures generated in a fire.

As described above, the fire door is mainly made of a metal material because of its functional characteristics, and since the processing of a metal material panel is mainly performed by a roll forming process, it is impossible to manufacture a frame of the same type as the prior art There is a limit in applying the reinforcing structure shown in the prior art.

Korean Patent Registration No. 10-0954551 " Corner fixing device for edge frame for fire door " Korean Patent Registration No. 10-0823367 'Welded window frame connection structure having a corner stiffener connection structure, window structure using the same, and manufacturing method thereof'

In order to solve the above-mentioned problems, the present invention has been made to solve the above-mentioned problems by providing a structure capable of greatly improving the supporting force and strength of the side edge portions of the fire doors, thereby improving the sealing performance of the fire doors, So that it is possible to prevent the fire from spreading.

At this time, it is possible to form a reinforcing structure using only a panel of a metal material constituting a fire door without using a separate reinforcing member or the like. In the process of forming such a structure, And it is an object of the present invention to provide a fire door frame coupling structure of a composite structure capable of providing sufficient supporting force and strength.

Particularly, the present invention does not constitute a separate retaining structure, and by joining and folding the edges of the front panel and the rear panel of the fire door, the engaging portion is formed into two or more layers to improve the supporting force and strength, The present invention provides a frame structure for a fire door with a composite structure that can improve the bending stress and torsional stress, which are represented by the sum of stress and tensile stress, and minimize the deformation of the fire door by external force.

According to another aspect of the present invention, there is provided a combined structure of a fire door frame and a fire door, wherein a front panel and a rear panel constituting a fire door are coupled to each other, Wherein one of the rear panels comprises a stepped portion formed in a single-ply structure and extending from at least a part of the edges of the panel surface portion forming the fire door; And a reinforcement supporting part formed to extend from the step part and coupled with the other of the front panel and the rear panel.

The reinforcing support portion may have a double structure in which at least a part of one of the edges of the front panel and the rear panel is closely folded.

The stepped portion may include: a first bent surface bent in one direction from the panel surface; And a second bent surface bent in one direction from the first bent surface, wherein the reinforcing support portion can be bent in one direction other than the second bent surface.

It is preferable that the reinforcement supporting portion has a double structure of an outer reinforcing surface and an inner reinforcing surface, and the step portion is formed by sequentially extending the first bent surface and the second bent surface from the panel surface portion, Can be connected to the outer reinforcement surface.

The inner reinforcement surface of the reinforcing supporter extends so as to be bent at the outer reinforcement surface, and at least a portion of the inner reinforcement surface of the reinforcement supporter is located on the inner side of the outer reinforcement surface As shown in FIG.

In addition, the other of the front panel and the rear panel may have a reinforcing connection portion joined to the reinforcing support portion and extending from at least a part of the edge of the panel surface portion.

Further, the reinforced connecting portion may have a multilayer folding structure in which the edges of the panel surface are folded a plurality of times to be closely contacted.

In addition, the reinforcing connection portion may be formed by folding the edge of the panel surface part several times in an equally folding manner.

The reinforcement connecting portion may be formed by folding the edges of the panel surface portion in a half folding manner.

The reinforcement connecting portion may be coupled to the outer side of the reinforcement supporting portion in a surface contact manner so that the reinforcing connecting portion is bent and extended from the panel surface portion and the end portion thereof is in close contact with the second outer folding surface.

According to the above-mentioned solution, the reinforcing structure is formed by using only the panel of the metal material constituting the fire door without using a separate reinforcing member or the like, thereby simplifying the structure and manufacturing process of the fire door to easily produce a fire door There is an advantage that it can be.

Particularly, the present invention has an advantage that a sufficient supporting force and strength can be obtained by forming the joining portion of the front panel and the rear panel by the roll forming process.

Accordingly, the present invention has an advantage in that the sealing performance of the entire fire door can be improved through a structure and a process that can greatly enhance the supporting force and strength of the side edge of the fire door.

Accordingly, the present invention has an effect of improving a flame blocking effect and effectively preventing fire spread when a fire occurs.

More specifically, the present invention does not constitute a reinforcing member such as a separate support or the like, and the folding and bending process is performed on the edges of the front panel and the rear panel, so that the coupling portion is formed into two or more layers, There is an advantage to be improved.

As a result, the present invention has an effect of improving the bending stress and torsional stress, which are represented by the sum of compressive stress and tensile stress, and minimizing the deformation of the fire door by the external force, with respect to the edge fitting portion of the fire door.

Accordingly, it is possible to improve reliability and competitiveness in the field of fire doors and fire door reinforcement structures, in particular, corner reinforcement structures of fire doors, as well as similar or related fields.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view for explaining an embodiment of a fire door frame coupling structure of a composite structure according to the present invention; FIG.
Fig. 2 is a view for explaining each configuration of the front panel shown in Fig.
Figs. 3 to 5 are views for explaining a processing method of the front panel shown in Fig. 2. Fig.
6 is a view for explaining each configuration of the rear panel shown in Fig.

The fire door frame coupling structure of the composite structure according to the present invention can be variously applied. In the following, the most preferred embodiments will be described with reference to the accompanying drawings.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view for explaining an embodiment of a fire door frame coupling structure of a composite structure according to the present invention; FIG.

1, the fire door A may be configured such that the edges of the front panel 100 and the rear panel 200 constituting the fire door A are coupled to each other, and the front panel 100 and the rear panel 200 ) Can be composed of various materials of refractory material and refractory material.

The flap door A is installed on the flap door F so as to be rotatable with respect to the hinged door frame F. In the course of closing the door A, the edge of the door A, The impact may occur.

In other words, when the fire door A is closed, a considerable impact may occur on the 'a' portion of the edge of the fire door A which is in close contact with the fire door F, and a shock may be transmitted to the 'b' have.

When the edge of the fire door (A) is deformed or damaged by the impact, a gap may be generated in a state where the fire door (A) is closed. As a result, the sealing of both sides of the fire door (A) A fire in a space can cause dangerous situations such as exposure to a flame or fire in another space.

Therefore, the present invention aims to solve the above-mentioned problems by improving the structural strength for the 'a' portion and the 'b' portion as shown in FIG.

Generally, in order to cope with such an impact, a separate reinforcing member or a reinforcing structure is applied. However, in the present invention, the front panel 100 and the rear panel 200) to improve the strength of the portion.

Here, the fire door (A) to which the frame coupling structure of the present invention is applied is formed to have a multi-stepped contact with the fire door (F) in order to enhance the hermeticity of the fire doors (A) on both sides. Of course, the shape of the fire door frame F corresponding to the edge shape of the fire door A is not limited to that shown in Fig. 1, and can be variously modified according to the needs of those skilled in the art.

Accordingly, in the present invention, the fire door A will be described in which the fire door F is closed in a multi-stage close contact with the fire door F having various shapes without taking the shape of the fire door F into consideration.

The shapes of the front panel 100 and the rear panel 200 shown in FIG. 1 are not necessarily determined. The shapes of the front panel 100 and the rear panel 200 may be reversed, And the rear panel 200 may have the same shape so that the front and rear surfaces are symmetrical.

The front panel 100 and the rear panel 200 will be described with reference to FIGS. 1 and 2. However, the front panel 100 and the rear panel 200 are not limited thereto. It should be noted that the shape of the back panel 200 may be mutually substituted or formed identically.

Fig. 2 is a view for explaining each configuration of the front panel shown in Fig.

Referring to FIG. 2, the front panel 100 is provided with a stepped portion corresponding to the portion 'a' of FIG. 1 at the edge of the panel surface 110 with reference to the panel surface portion 110 constituting the front surface of the fire door A. [ (120) and a reinforcing support part (130) corresponding to the 'b' part.

The stepped portion 120 is formed so as to extend from at least a part of the edges of the panel surface portion 100 forming the fire door A. The step portion 120 is configured to be laminated in a single layer structure of inner and outer sides as shown in Fig.

As described above, the stepped portion 120 of the single layer structure may have a relatively weaker strength than the reinforcing and supporting portion 130, and the extension surface 133 and the supporting surface 134 shown in FIG. 2 may be added .

The reinforcing supporter 130 is formed to extend from the step 120 to be connected to the rear panel 200. The reinforcing supporter 130 is also laminated with inner and outer layers as shown in FIG.

In other words, the stepped portion 120 and the reinforcing support portion 130 shown in FIG. 2 may be formed in a double structure in which the edge of the front panel 100 is folded to be in close contact with each other. Although the step portion 120 is a single-layer structure, the step portion 120 is supported together with the extending surface 133 and the supporting surface 134 of the reinforcing supporting portion 130, so that the double structure can be determined.

The stepped portion 120 is formed to protrude from the fire door frame F as shown in FIG. 1 and may include a first curved surface 121 and a second curved surface 122.

The first folded surface 121 may be formed to be bent in one direction from the panel surface 110 and the second folded surface 122 may be formed to be bent in the first direction from the first folded surface 121.

The first folding surface 121 and the second folding surface 122 may form a square support structure at the edge of the panel surface 110 together with the extended surface 133 described later.

The reinforcing supporter 130 is bent in the other direction from the second bent surface 122 and may have a double structure including an outer reinforcing surface 131 and an inner reinforcing surface 132.

As a result, the first folding surface 121 and the second folding surface 122 of the step 120 can be extended while being sequentially bent from the panel surface portion 110.

The reinforcing supporter 130 may be formed of a double structure extending from the second bent surface 122 and folded so that the outer reinforcing surface 131 and the inner reinforcing surface 132 are in close contact with each other.

At this time, a part of the inner reinforcing face 132 may be in close contact with the inside of the outer reinforcing face 131, and the other part may be formed as the step face 133 and the support face 134, Thereby improving the structural strength of the support portion 120 and the reinforcing support portion 130.

As a result, the edge of the panel face 110, the step 120 and the extending face 133 form a rectangular structure, and the outer reinforcement face 131 and the inner reinforcement face 132 And the whole structure is supported by the supporting surface 134 to strengthen the bonding force with the rear panel 200 and to prevent the external force generated during the use of the fire door A The structural strength can be greatly improved.

Hereinafter, a process of forming each configuration of the front panel 100 will be described.

Figs. 3 to 5 are views for explaining a processing method of the front panel shown in Fig. 2. Fig.

First, the processing method described below is described as being performed using the roll forming process as described above. It is possible to change the same as or similar to the roll forming process according to the needs of those skilled in the art, It is not limited to the processing method.

As shown in FIG. 3, when the flat panel surface 110 of the raw material is supplied, the edge 111 of the panel surface 110 may be folded to form the step 120 and the reinforcing support 130.

The support surface 134 is formed by bending the end portion of the edge 111 of the supplied panel surface portion 110 and the edge portion including the support surface 134 is folded to form the outer reinforcement surface 131 and / The inner reinforcing surface 132 can be formed.

4, a portion of the outer reinforcing surface 131 is bent in the opposite direction so that the extended surface 133 is formed, and then bent in the opposite direction so that the second bent surface 122 is formed, So that the first folded surface 121 is formed.

5, the support surface 134 is bent so as to be spaced apart from the panel surface 110, and then the central portion of the support surface 134 is bent in the opposite direction to form the outer reinforcing surface 131 and the second bent surface 122, And may be bent so that the first bent surface 121 is formed.

Hereinafter, the rear panel 200 coupled to the front panel 100 will be described in detail.

6 is a view for explaining each configuration of the rear panel shown in Fig.

Referring to FIG. 6, the fire door A having the connecting structure of the present invention may form a reinforcing connecting portion 220 on the rear panel 200 coupled with the front panel 100.

The reinforcing connecting portion 220 may be formed by bending a part of the edge of the panel surface 220 of the rear panel 200. The reinforcing connecting portion 220 may be formed by joining the reinforcing supporting portion 130 of the front panel 100. [

At this time, the reinforcing connecting portion 220 can be formed in a multi-layer folding structure having a folded structure such that a part of the bent edges are folded a plurality of times to be closely contacted.

For example, as shown in FIG. 6A, the reinforcing connecting part 220 may form an equal folding part 221 by folding the edges of the panel face part 220 at regular intervals. A method of folding a plurality of times at equal intervals so as to be closely contacted is called an equal folding method.

As another example, the reinforcing connecting portion 220 can form the half folding portion 222 by folding the edges of the panel face portion 220 in half by one by one, as shown in FIG. 6 (b) A half-folding method is a method in which the corresponding portion is repeatedly folded to form a close contact.

When the reinforcement connecting part 220 of the rear panel 200 is formed into a folded structure by the equal folding method or the half folding method, as shown in part 'b' of FIG. 1, The reinforcement supporting portion 130 of the front panel 100 and the reinforcing connecting portion 220 of the rear panel 200 may be coupled to each other by being brought into close contact with the second bent surface 122 of the panel 100. [ In this case, it is needless to say that the connection between the reinforcement supporting part 130 and the reinforcing connecting part 220 can be achieved by various methods such as welding and riveting.

As a result, the reinforcing connecting portion 220 is in surface contact with the outer reinforcing surface 131, which is outside the reinforcing supporting portion 130, and can be coupled to the reinforcing supporting portion 130 while being in line contact with the second bending surface 122 .

Therefore, the fire door A having the connecting structure according to the present invention has a portion 'a' protruding from the fire door frame F and a portion 'a' connecting the front panel 100 and the rear panel 200, the structural strength of the 'b' portion can be greatly improved.

Further, by not using a separate reinforcing member or the like to improve the structural strength, it is possible to obtain an effect of simplifying the process and improving the working efficiency, improving the productivity of the product, and reducing the manufacturing cost have.

The combined structure of the fire door frame of the composite structure according to the present invention has been described above. It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is to be understood, therefore, that the embodiments described above are in all respects illustrative and not restrictive.

A: Fire door
100: front panel
110: panel face
120: stepped portion
121: first bent surface 122: second bent surface
130: reinforcing support
131: outer reinforcement surface 132: inner reinforcement surface
133: Extension surface 134: Support surface
200: Rear panel
210: Panel face
220: reinforced connection
221: Equal folding 222: Half folding

Claims (10)

A combination structure of a fire door frame configured such that edges of a front panel and a rear panel constituting a fire door are coupled to each other,
Wherein one of the front panel and the rear panel comprises:
A stepped portion formed of a single-ply structure and extending from at least a part of edges of a panel surface portion forming a fire door; And
And a reinforcing support portion extending from the step portion to be coupled to the other of the front panel and the rear panel.
The method according to claim 1,
The reinforcing support portion
Wherein the front and rear panels have a double structure in which at least some of the edges of the front panel and the rear panel are closely contacted.
The method according to claim 1,
The stepped portion includes:
A first bent surface bent in one direction from the panel surface; And
And a second bent surface bent in one direction from the first bent surface,
The reinforcing support portion
And a second folded surface that is bent in a direction other than the second folded surface.
The method of claim 3,
The reinforcing support portion
The outer reinforcement surface and the inner reinforcement surface,
The stepped portion includes:
Wherein the first folding surface and the second folding surface are sequentially extended from the panel surface portion and connected to an outer reinforcing surface of the reinforcing support portion.
5. The method of claim 4,
The outer reinforcing surface of the reinforcing support portion
A second bent portion extending from the second bent surface,
The inner reinforcing surface of the reinforcing support portion
Wherein the reinforcing frame has a double structure which is folded so as to be bent at the outer reinforcing surface and at least a part of which is folded so as to be in close contact with the inner side of the reinforcing surface.
6. The method according to any one of claims 1 to 5,
And the other of the front panel and the rear panel,
And a reinforcing connection portion coupled to the reinforcing support portion is formed to extend from at least a part of edges of the panel surface portion.
The method according to claim 6,
The reinforcing connecting portion includes:
Wherein the folding structure is a multi-layer folding structure in which edges of the panel surface are folded a plurality of times so as to be in close contact with each other.
8. The method of claim 7,
The reinforcing connecting portion includes:
Wherein the edge of the panel surface is folded many times in an equally folding manner so as to be closely contacted.
8. The method of claim 7,
The reinforcing connecting portion includes:
Wherein the edge of the panel surface portion is folded in a half folding manner so as to be closely contacted with the edge of the panel surface portion.
8. The method of claim 7,
The reinforcing connecting portion includes:
Wherein the reinforcing support portion is engaged with the outer side of the reinforcing support portion so as to be in surface contact with the reinforcing support portion so that the end portion of the reinforcing support portion is in contact with the second outwardly bent surface.

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