KR20220170306A - Inner iron plate jointed fire door for transform decrease - Google Patents

Inner iron plate jointed fire door for transform decrease Download PDF

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Publication number
KR20220170306A
KR20220170306A KR1020210081170A KR20210081170A KR20220170306A KR 20220170306 A KR20220170306 A KR 20220170306A KR 1020210081170 A KR1020210081170 A KR 1020210081170A KR 20210081170 A KR20210081170 A KR 20210081170A KR 20220170306 A KR20220170306 A KR 20220170306A
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South Korea
Prior art keywords
thin plates
axis direction
perforated
fire door
thermal expansion
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KR1020210081170A
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Korean (ko)
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구자홍
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더나인건축사사무소(주)
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Priority to KR1020210081170A priority Critical patent/KR20220170306A/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B2003/7049—Specific panel characteristics
    • E06B2003/7051—Specific panel characteristics of layered construction involving different materials

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
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Abstract

The present invention provides a fire door in which a perforated thin plate having a perforation for reducing deformation is bonded between a heating surface and a non-heating surface to minimize local deformation and distortion during thermal expansion of the heating surface, thereby improving fire resistance. The fire door of the present invention includes a pair of outer thin plates having a constant width (ℓx) in an X-axis direction, a height (ℓy) in a Y-axis direction, and a certain thickness (t); and at least one perforated thin plate having the same coefficient of thermal expansion (α) as the pair of outer thin plates and disposed and bonded between the pair of outer thin plates with the same width (ℓx) and height (ℓy).

Description

변형감소를 위한 타공 박판이 접합된 방화문{Inner iron plate jointed fire door for transform decrease}Inner iron plate jointed fire door for transform decrease}

본 발명은 건축물에 적용되는 방화문에 관한 것으로, 특히 가열면과 비가열면의 사이에 변형감소용 타공을 갖는 타공 박판을 접합시켜 가열면의 열팽창시 국부적인 변형과 뒤틀림을 최소화시켜 내화성능이 향상되도록 한 방화문에 관한 것이다.The present invention relates to a fire door applied to a building, and in particular, a perforated thin plate having a perforation for reducing deformation is bonded between a heated surface and a non-heated surface to minimize local deformation and distortion during thermal expansion of the heated surface to improve fire resistance performance. It's about a fire door.

방화문(防火門)은 출입문의 일종으로 사람의 통행이 가능하지만, 화재 시 화염의 침투를 방지하도록 설계되어 있다. 따라서 화재 피해의 방지에 중요한 역할을 한다. 방화문은 화재시 화염의 전파를 최소화하고 피난 경로를 확보하는 데 매우 중요한 시설로서 일정 기간마다 점검이 의무화되고 있다.A fire door is a type of door that allows people to pass through, but is designed to prevent the penetration of flames in case of fire. Therefore, it plays an important role in preventing fire damage. The fire door is a very important facility for minimizing the propagation of flame in case of fire and securing an evacuation route, and inspection at regular intervals is mandatory.

일반적으로 방화문은 일정 두께의 철판으로 제작되며, 철판의 내부에는 결로 방지, 단열성, 내화성 및 흡음성을 갖춘 단열재로 채움되어 있다. 그러나 이러한 종래의 방화문은 화재로 인해 가열팽창을 하는 경우 가열면과 비가열면과의 온도차에 의해 국부적인 변형과 뒤틀림이 발생되어 내화성능을 저하시키게 된다.In general, a fire door is made of an iron plate having a certain thickness, and the inside of the iron plate is filled with an insulating material having condensation prevention, heat insulation, fire resistance, and sound absorption. However, when such a conventional fire door is heated and expanded due to a fire, local deformation and distortion occur due to a temperature difference between a heated surface and a non-heated surface, thereby deteriorating fire resistance performance.

따라서 화재시 가열면과 비가열면 사이의 열팽창으로 인한 변형을 최소화시켜 내화성능을 향상시킬 수 있는 방안이 요구된다.Therefore, there is a need for a method to improve fire resistance performance by minimizing deformation due to thermal expansion between the heating surface and the non-heating surface in case of fire.

본 발명의 배경이 되는 기술로는 한국 등록특허 등록번호 제10-2056393호(특허문헌 1)로서, '망상구조형 단열 접착제를 포함하는 방화문'이 제안되어 있다. 이는 화염이나, 고온하에서 접착제 층이 탄화되거나, 균열 등의 형태 변화 없이 밀폐된 상태로 공기층을 유지하여 열전도율을 낮추는 접착제를 단열보드 사이에 도포한 일체형 단열보드를 방화문 내부에 배치하여 차열성능을 개선하고, 단열보드를 구성하는 섬유의 방향을 수평 방향(Machine Direction)에서 수직 방향(Cross Direction)으로 배향시켜 휨 강도 및 비틀림 강도가 향상되어 내구성이 개선된 방화문을 제공한다.As a background technology of the present invention, Korea Patent Registration No. 10-2056393 (Patent Document 1), 'fire door including a network structure heat insulating adhesive' has been proposed. This improves heat insulation performance by arranging an integrated insulation board coated with an adhesive that lowers thermal conductivity by maintaining an air layer in a closed state without a flame or a carbonization of the adhesive layer under high temperature or a change in shape such as cracking, etc., inside the fire door. And, by orienting the direction of the fibers constituting the insulation board from the horizontal direction (Machine Direction) to the vertical direction (Cross Direction), the bending strength and torsional strength are improved to provide a fire door with improved durability.

그러나 상기 배경기술은 철판의 변형율 감소에 대한 기술을 찾아볼 수 없고, 단열접착제를 제조하는 추가적인 공정이 필요한 단점을 가진다.However, the above background art has a disadvantage that no technology for reducing the strain of the steel plate can be found, and an additional process for manufacturing an insulating adhesive is required.

본 발명의 다른 배경기술로는 한국 공개특허 공개번호 제10-2021-0041893호(특허문헌 2)로서, '내화성을 강화한 방화문'이 제안되어 있다. 이는 2개의 프레임의 단부에 형성된 절곡 부위를 개선하여 절곡 부위 간 접촉 면적을 없애거나 최소화 처리하여 화재 시 쉽사리 어느 하나의 프레임에서 다른 하나의 프레임으로 화재가 전달되는 문제를 차단할 수 있도록 한 것이다. 그러나 이 배경기술은 프레임에 많은 부분의 절곡 성형 과정이 필요하여 제작이 용이치 않다.As another background art of the present invention, Korean Patent Publication No. 10-2021-0041893 (Patent Document 2), 'fire door with enhanced fire resistance' has been proposed. This is to improve the bent parts formed at the ends of the two frames to eliminate or minimize the contact area between the bent parts, so that it is possible to block the problem of fire easily transferring from one frame to the other in case of fire. However, this background art is not easy to manufacture because it requires a large portion of the frame to be bent and molded.

한국 등록특허 등록번호 제10-2056393호Korea Patent Registration No. 10-2056393 한국 공개특허 공개번호 제10-2021-0041893호Korean Patent Publication No. 10-2021-0041893

본 발명은 가열면과 비가열면의 사이에 변형감소용 타공을 갖는 타공 박판을 접합시켜 가열면의 열팽창시 국부적인 변형과 뒤틀림을 최소화시켜 내화성능이 향상되도록 한 방화문을 제공함에 그 목적이 있다.An object of the present invention is to provide a fire door to improve fire resistance by bonding a perforated thin plate having a perforation for reducing deformation between a heating surface and a non-heating surface to minimize local deformation and distortion during thermal expansion of the heating surface.

본 발명의 적절한 실시 형태에 따른 방화문은, X축 방향의 일정한 너비(

Figure pat00001
)와 Y축 방향의 높이(
Figure pat00002
) 및 일정 두께(t)를 갖는 한 쌍의 외측 박판과; 한 쌍의 외측 박판과 동일한 열팽창율(α)을 갖고 한 쌍의 외측 박판의 사이에 동일한 너비(
Figure pat00003
)와 높이(
Figure pat00004
)를 가지고 배치되어 접합된 적어도 하나 이상의 타공 박판;으로 이루어진 철판으로 제작되며, 상기 타공 박판에는 두께 방향으로 관통되어 일정한 공극을 갖는 변형 감소용 타공(131)이 X축 방향 및 Y축 방향으로 격자 배열되어, 외측 박판(11,11)의 열팽창에 따른 X,Y축 변형율(
Figure pat00005
,
Figure pat00006
)과 타공 박판의 열팽창에 따른 X,Y축 변형율(
Figure pat00007
,
Figure pat00008
)의 관계는 아래의 식(1), 식(2)를 모두 만족시키는 것을 특징으로 한다.The fire door according to a preferred embodiment of the present invention has a constant width in the X-axis direction (
Figure pat00001
) and the height in the Y-axis direction (
Figure pat00002
) and a pair of outer thin plates having a certain thickness (t); It has the same coefficient of thermal expansion (α) as the pair of outer thin plates and the same width between the pair of outer thin plates (
Figure pat00003
) and height (
Figure pat00004
) and at least one perforated thin plate that is arranged and bonded; the perforated thin plate is penetrated in the thickness direction and has perforated holes 131 for strain reduction having constant voids in the X-axis direction and the Y-axis direction. Arranged, the strain in the X and Y axes according to the thermal expansion of the outer thin plates 11 and 11 (
Figure pat00005
,
Figure pat00006
) and X, Y axis strain according to the thermal expansion of the perforated thin plate (
Figure pat00007
,
Figure pat00008
) is characterized in that it satisfies both Expressions (1) and (2) below.

Figure pat00009
-------식(1)
Figure pat00009
-------Equation (1)

Figure pat00010
-------식(2)
Figure pat00010
-------Equation (2)

여기서,

Figure pat00011
,
Figure pat00012
는 외측 박판의 열팽창 후 X축 방향, Y축 방향으로 팽창한 변화량이고,
Figure pat00013
,
Figure pat00014
는 타공 박판의 열팽창 후 X축 방향, Y축 방향으로 팽창한 변화량이다.here,
Figure pat00011
,
Figure pat00012
Is the amount of expansion change in the X-axis direction and the Y-axis direction after thermal expansion of the outer thin plate,
Figure pat00013
,
Figure pat00014
is the amount of expansion change in the X-axis direction and the Y-axis direction after thermal expansion of the perforated thin plate.

또한, 타공 박판이 2개 이상으로 설치된 경우, 그들 타공 박판은 모두 동일한 크기의 변형 감소용 타공을 가질 수 있다.In addition, when two or more perforated thin plates are installed, all of the perforated thin plates may have perforations for reducing strain of the same size.

또한, 타공 박판이 2개 이상으로 설치된 경우, 그들 타공 박판은 서로 상이한 크기의 변형 감소용 타공을 가질 수 있다.In addition, when two or more perforated thin plates are installed, the perforated thin plates may have perforations for reducing deformation of different sizes.

본 발명의 방화문에는 가열면과 비가열면의 사이에 변형감소용 타공을 갖는 타공 박판이 접합되어 있는 철판이 적용되어 가열면의 열팽창시 변형율이 줄어듦으로서 방화문의 국부적인 변형과 뒤틀림이 감소되어 내화성능을 향상시킬 수 있다.In the fire door of the present invention, an iron plate in which a perforated thin plate having a perforation for reducing deformation is bonded between a heating surface and a non-heating surface is applied to reduce the strain during thermal expansion of the heating surface, thereby reducing local deformation and distortion of the fire door, thereby reducing fire resistance performance. can improve

본 명세서에서 첨부되는 다음의 도면들은 본 발명의 바람직한 실시 예를 예시하는 것이며, 발명의 상세한 설명과 함께 본 발명의 기술사상을 더욱 이해시키는 역할을 하는 것이므로, 본 발명은 첨부한 도면에 기재된 사항에만 한정되어서 해석되어서는 아니 된다.
도 1은 본 발명의 실시 예에 따른 방화문의 정면도.
도 2는 도 1의 A-A선에서 본 단면도.
도 3은 도 1의 철판에 적용된 외측 박판과 타공 박판의 분리사시도.
도 4는 도 2의 'B'부 확대도.
도 5는 도 3에 도시된 타공 박판의 정면도.
도 6a는 본 발명의 다른 실시 예에 따른 철판에 적용된 외측 박판과 타공 박판의 분리사시도.
도 6b는 도 6a의 외측 박판과 타공 박판이 접합된 상태에서의 부분 단면도.
도 7은 본 발명의 또 다른 실시 예에 따른 철판에 적용된 외측 박판과 타공 박판의 분리사시도.The following drawings attached to this specification illustrate a preferred embodiment of the present invention, and together with the detailed description of the present invention serve to further understand the technical idea of the present invention, the present invention is limited to those described in the accompanying drawings. It should not be construed as limiting.
1 is a front view of a fire door according to an embodiment of the present invention;
2 is a cross-sectional view taken along line AA of FIG. 1;
Figure 3 is an exploded perspective view of the outer thin plate and the perforated thin plate applied to the iron plate of FIG.
4 is an enlarged view of 'B' part of FIG. 2;
Figure 5 is a front view of the perforated thin plate shown in Figure 3;
Figure 6a is an exploded perspective view of the outer thin plate and the perforated thin plate applied to the iron plate according to another embodiment of the present invention.
Figure 6b is a partial cross-sectional view in a state in which the outer thin plate and the perforated thin plate of Fig. 6a are joined.
7 is an exploded perspective view of an outer thin plate and a perforated thin plate applied to an iron plate according to another embodiment of the present invention.

아래에서 본 발명은 첨부된 도면에 제시된 실시 예를 참조하여 상세하게 설명이 되지만 제시된 실시 예는 본 발명의 명확한 이해를 위한 예시적인 것으로 본 발명은 이에 제한되지 않는다.Below, the present invention will be described in detail with reference to the embodiments presented in the accompanying drawings, but the presented embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

일반적으로 방화문은 화재시 가열면과 비가열면 사이의 열팽창이 불균형을 이루면서 국부적인 변형으로 인한 뒤틀림으로 내화성능을 저하시키게 된다. 따라서 본 발명은 방화문에 적용되는 철판의 변형 및 변형율을 줄여 화재 노출시 방화문의 국부적인 변형과 뒤틀림이 감소되어 내화성능이 향상되도록 한 것이다.In general, a fire door degrades fire resistance performance due to distortion due to local deformation as thermal expansion between a heating surface and a non-heating surface is unbalanced during a fire. Therefore, the present invention is to reduce the deformation and strain rate of the steel plate applied to the fire door to reduce the local deformation and distortion of the fire door when exposed to fire, thereby improving the fire resistance performance.

본 실시 예에 따른 방화문(100)은 철판(10)으로 제작된다. 방화문(100)은 하부 힌지(101)와 상부 힌지(102)에 의해 문틀(110)에 지지되어 회전 개폐된다. 철판(10)은 도 3 내지 도 5에서와 같이 한 쌍의 외측 박판(11,11)과 이들 외측 박판(11,11)의 사이에 위치하여 접합된 하나 이상의 타공 박판(13)으로 구성된다.The fire door 100 according to this embodiment is made of an iron plate 10. The fire door 100 is supported by the door frame 110 by the lower hinge 101 and the upper hinge 102 to be opened and closed by rotation. The iron plate 10 is composed of a pair of outer thin plates 11 and 11 and one or more perforated thin plates 13 positioned and joined between the outer thin plates 11 and 11 as shown in FIGS. 3 to 5.

한 쌍의 외측 박판(11,11)은 X축 방향의 일정한 너비(

Figure pat00015
)와 Y축 방향의 높이(
Figure pat00016
) 및 일정 두께(t)를 갖는다.The pair of outer thin plates 11 and 11 have a constant width in the X-axis direction (
Figure pat00015
) and the height in the Y-axis direction (
Figure pat00016
) and has a certain thickness (t).

타공 박판(13)은 한 쌍의 외측 박판(11,11)과 동일한 열팽창율(α)을 갖는다. 타공 박판(13)은 한 쌍의 외측 박판(11,11)과 동일한 너비(

Figure pat00017
)와 높이(
Figure pat00018
)를 갖는다. 특히 타공 박판(13)에는 일정한 공극(G)을 갖는 변형 감소용 타공(131)이 X축 방향 및 Y축 방향으로 격자 배열되어 구성된다.The perforated thin plate 13 has the same coefficient of thermal expansion (α) as that of the pair of outer thin plates 11 and 11 . The perforated thin plate 13 has the same width as the pair of outer thin plates 11 and 11 (
Figure pat00017
) and height (
Figure pat00018
) has In particular, the perforated thin plate 13 is configured by lattice arrangement of perforated holes 131 for reducing strain having a constant gap G in the X-axis direction and the Y-axis direction.

따라서 열팽창 후 타공 박판(13)의 X,Y축 길이는 공극(G)의 지름만큼 줄어들기 때문에 아래의 식(1), 식(2)가 성립한다.Therefore, since the lengths of the X and Y axes of the perforated thin plate 13 after thermal expansion are reduced by the diameter of the air gap G, the following equations (1) and (2) are established.

Figure pat00019
-----식(1)
Figure pat00019
-----Formula (1)

Figure pat00020
-----식(2)
Figure pat00020
-----Formula (2)

여기서,

Figure pat00021
,
Figure pat00022
는 외측 박판(11,11)의 열팽창 후 X축 방향, Y축 방향으로 팽창한 변화량이고,
Figure pat00023
,
Figure pat00024
는 타공 박판(13)의 열팽창 후 X축 방향, Y축 방향으로 팽창한 변화량이다.here,
Figure pat00021
,
Figure pat00022
Is the expansion change in the X-axis direction and the Y-axis direction after thermal expansion of the outer thin plates 11 and 11,
Figure pat00023
,
Figure pat00024
Is the amount of expansion in the X-axis direction and the Y-axis direction after thermal expansion of the perforated thin plate 13.

또한, 각 X,Y 축의 열팽창 전,후의 변형량을 대비하면

Figure pat00025
,
Figure pat00026
와 같으므로, 변형율의 관계식은 아래 식(3), 식(4)와 같다.In addition, comparing the amount of deformation before and after thermal expansion of each X and Y axis
Figure pat00025
,
Figure pat00026
As , the relational expression of the strain rate is as follows Equation (3) and Equation (4).

Figure pat00027
--------식(3)
Figure pat00027
--------Equation (3)

Figure pat00028
-------식(4)
Figure pat00028
-------Equation (4)

따라서, 외측 박판(11,11)의 열팽창에 따른 X,Y축 변형율(

Figure pat00029
,
Figure pat00030
)과 타공 박판(13)의 열팽창에 따른 X,Y축 변형율(
Figure pat00031
,
Figure pat00032
)의 관계는 상기한 식(3), 식(4)를 모두 만족시키도록 구성된다.Therefore, the strain in the X and Y axes according to the thermal expansion of the outer thin plates 11 and 11 (
Figure pat00029
,
Figure pat00030
) and the X, Y axis strain according to the thermal expansion of the perforated thin plate 13 (
Figure pat00031
,
Figure pat00032
The relationship of ) is configured to satisfy both equations (3) and (4) above.

이와 같이 방화문(100)에 적용되는 철판(10)은 타공 박판(13)에 일정한 공극(G)을 갖는 변형 감소용 타공(131)이 X축 방향 및 Y축 방향으로 격자 배열된 구조를 갖고 있어, 식(3) 및 식(4)와 같이 변형 및 변형율을 줄이게 됨으로써 국부적인 변형과 뒤틀림이 감소되어 내화성능의 향상을 꾀할 수 있다.In this way, the iron plate 10 applied to the fire door 100 has a structure in which the perforated holes 131 for reducing strain having a constant gap G in the perforated thin plate 13 are lattice-arranged in the X-axis direction and the Y-axis direction, , Equations (3) and Equations (4), by reducing the deformation and strain rate, local deformation and distortion are reduced, so that the fire resistance performance can be improved.

여기서, 변형 감소용 타공(131)은 원형으로 구성하였으나 타원형 또는 슬릿형(장공형)으로 구성될 수 있다.Here, the perforated hole 131 for reducing strain is configured in a circular shape, but may be configured in an elliptical or slit type (long hole type).

한편, 다른 실시 예로서, 도 6과 같이 타공 박판(13)이 2개 이상으로 설치된 경우, 모두 동일한 크기의 변형 감소용 타공(131)을 가질 수 있다. 예로, 방화문(100)의 전체 두께를 1.5mm로 하는 경우, 0.3mm의 두께를 갖는 외측 박판(11과 12)의 사이에 동일한 0.3mm의 두께를 갖는 3개의 타공 박판(13)이 접합되어 구성될 수 있다.On the other hand, as another embodiment, when two or more perforated thin plates 13 are installed as shown in FIG. 6, all of them may have perforated holes 131 for reducing deformation of the same size. For example, when the total thickness of the fire door 100 is 1.5 mm, three perforated thin plates 13 having the same thickness of 0.3 mm are bonded between the outer thin plates 11 and 12 having a thickness of 0.3 mm. It can be.

또, 다른 실시 예로서, 타공 박판(13)이 2개 이상으로 설치된 경우, 그들 타공 박판(13)은 도 7과 같이 서로 상이한 크기의 변형 감소용 타공(131)을 가질 수 있다.Also, as another embodiment, when two or more perforated thin plates 13 are installed, the perforated thin plates 13 may have perforated holes 131 for strain reduction of different sizes, as shown in FIG. 7 .

지금까지 본 발명은 제시된 실시 예를 참조하여 상세하게 설명이 되었지만 이 분야에서 통상의 지식을 가진 자는 제시된 실시 예를 참조하여 본 발명의 기술적 사상을 벗어나지 않는 범위에서 다양한 변형 및 수정 발명을 만들 수 있을 것이다. 본 발명은 이와 같은 변형 및 수정 발명에 의하여 제한되지 않으며 다만 아래에 첨부된 청구범위에 의하여 제한된다. So far, the present invention has been described in detail with reference to the presented embodiments, but those skilled in the art can make various modifications and variations without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by these variations and modifications, but is limited only by the claims appended below.

100: 방화문
10: 철판
11: 외측 박판
13: 타공 박판
131: 변형 감소용 타공100: fire door
10: iron plate
11: outer thin plate
13: perforated sheet
131: perforation for strain reduction

Claims (3)

철판(10)으로 제작되는 방화문(100)에 있어서,
상기 철판(10)은
X축 방향의 일정한 너비(
Figure pat00033
)와 Y축 방향의 높이(
Figure pat00034
) 및 일정 두께(t)를 갖는 한 쌍의 외측 박판(11,11)과;
한 쌍의 외측 박판(11,11)과 동일한 열팽창율(α)을 갖고 한 쌍의 외측 박판(11,11)의 사이에 동일한 너비(
Figure pat00035
)와 높이(
Figure pat00036
)를 가지고 배치되어 접합된 적어도 하나 이상의 타공 박판(13);으로 이루어지되,
상기 타공 박판(13)에는 두께 방향으로 관통되어 일정한 공극(G)을 갖는 변형 감소용 타공(131)이 X축 방향 및 Y축 방향으로 격자 배열되어,
외측 박판(11,11)의 열팽창에 따른 X,Y축 변형율(
Figure pat00037
,
Figure pat00038
)과 타공 박판(13)의 열팽창에 따른 X,Y축 변형율(
Figure pat00039
,
Figure pat00040
)의 관계는 아래의 식(1), 식(2)를 모두 만족시키는 것을 특징으로 하는 변형감소를 위한 타공 박판이 접합된 방화문.
Figure pat00041
-------식(1)
Figure pat00042
-------식(2)
여기서,
Figure pat00043
,
Figure pat00044
는 외측 박판(11)의 열팽창 후 X축 방향, Y축 방향으로 팽창한 변화량이고,
Figure pat00045
,
Figure pat00046
는 타공 박판(13)의 열팽창 후 X축 방향, Y축 방향으로 팽창한 변화량이다.In the fire door 100 made of iron plate 10,
The iron plate 10 is
constant width in the X-axis direction (
Figure pat00033
) and the height in the Y-axis direction (
Figure pat00034
) and a pair of outer thin plates 11 and 11 having a certain thickness t;
It has the same thermal expansion coefficient (α) as the pair of outer thin plates (11, 11) and the same width (
Figure pat00035
) and height (
Figure pat00036
) At least one or more perforated thin plates 13 arranged and bonded with a;
In the perforated thin plate 13, perforated holes 131 for reducing strain having a constant gap G penetrated in the thickness direction are arranged in a grid in the X-axis direction and the Y-axis direction,
Strain in the X and Y axes according to the thermal expansion of the outer thin plates 11 and 11 (
Figure pat00037
,
Figure pat00038
) and the X, Y axis strain according to the thermal expansion of the perforated thin plate 13 (
Figure pat00039
,
Figure pat00040
The relationship of ) is a fire door joined with perforated thin plates for strain reduction, characterized in that it satisfies both Equation (1) and Equation (2) below.
Figure pat00041
-------Equation (1)
Figure pat00042
-------Equation (2)
here,
Figure pat00043
,
Figure pat00044
Is the amount of expansion change in the X-axis direction and the Y-axis direction after thermal expansion of the outer thin plate 11,
Figure pat00045
,
Figure pat00046
Is the amount of expansion in the X-axis direction and the Y-axis direction after thermal expansion of the perforated thin plate 13. 제 1항에 있어서,
타공 박판(13)이 2개 이상으로 설치된 경우, 그들 타공 박판(13)은 모두 동일한 크기의 변형 감소용 타공(131)을 갖는 것을 특징으로 하는 변형감소를 위한 타공 박판이 접합된 방화문.According to claim 1,
When two or more perforated thin plates 13 are installed, all of the perforated thin plates 13 have perforations 131 for strain reduction of the same size. 제 1항에 있어서,
타공 박판(13)이 2개 이상으로 설치된 경우, 그들 타공 박판(13)은 서로 상이한 크기의 변형 감소용 타공(131)을 갖는 것을 특징으로 하는 공극을 갖는 변형감소를 위한 타공 박판이 접합된 방화문.According to claim 1,
When two or more perforated thin plates 13 are installed, the perforated thin plates 13 have perforations 131 for strain reduction of different sizes from each other, characterized in that the fire door to which the perforated thin plates for strain reduction with a gap are bonded. .
KR1020210081170A 2021-06-22 2021-06-22 Inner iron plate jointed fire door for transform decrease KR20220170306A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102056393B1 (en) 2019-04-05 2019-12-17 주식회사 서원코리아 Fire door containing insulation adhesive with network structure type
KR20210041893A (en) 2019-10-08 2021-04-16 노경수 Fire door with increased fire resistance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102056393B1 (en) 2019-04-05 2019-12-17 주식회사 서원코리아 Fire door containing insulation adhesive with network structure type
KR20210041893A (en) 2019-10-08 2021-04-16 노경수 Fire door with increased fire resistance

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