JP2013227825A - Door with building evacuation slave door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door with a building evacuation slave door always enabling evacuation from an emergency exit by solving a situation that a door frame is deformed and escape becomes impossible due to the non-openable/non-closable door in the case of earthquake.SOLUTION: A door A suspended and supported by a newly provided or existing door frame 1 is formed as a door provided with a slave door including a main door 2 and the slave door 3 suspended and supported by a slave door opening formed in the main door 2. Even when the door frame 1 is deformed, evacuation from an emergency exit is possible by opening/closing the slave door 3. The door A is suitable for various public buildings which an unspecified number of people leave and enter. If the door frame 1, the main door 2, and the slave door 3 of the slave door opening are made of steel and each of their outdoor side and indoor side aspect faces is covered by using a manufacturer standard steel plate 5 for both-sided flash door, an increase in used amount of steel plate due to the door with the slave door may be eliminated.

Description

  TECHNICAL FIELD The present invention relates to a door with a building evacuation door that is suitably used for evacuation in high-rise and middle-low buildings such as office buildings, schools, hotels, and government buildings.

  Patent Document 1 below is known as a door with a child door of this type. According to this, a new or existing door frame installed at the entrance opening of a condominium, and a door frame that can be freely opened and closed are supported. And an emergency escape child door arranged to be freely opened and closed at a child door opening of the parent door, for evacuation from the apartment to the outer corridor, and the door frame and the main door, An airtight means and a locking means are arranged between the main door and the child door.

JP2011-226164A

  In this case, even if the door is used as a front door in daily life and the door frame is deformed and cannot be opened and closed due to an earthquake, the child door arranged at the child door opening of the parent door is opened and closed, and the door is evacuated. Since it can be performed, the risk of being unable to escape from the apartment due to the inability to open and close the front door can be avoided.

  However, in the case of high-rise and middle-low buildings that have public nature, such as office buildings, schools, hotels, and government buildings, where many unspecified people enter and leave the building, there are emergency stairway exits for outdoor or indoor use. The door cannot be opened and closed due to the deformation of the door frame, and it is impossible to escape from the central corridor to the emergency staircase, and the door in the building facing the central corridor is also open to the individual interior due to the deformation of the door frame. There is a possibility that it will be impossible to escape to the central corridor, and it is necessary to eliminate the situation where it is impossible to escape due to an earthquake of an unspecified number of people in a public building.

  The present invention has been made in view of such circumstances, and the problem to be solved is that the door frame is deformed in a public building where an unspecified number of people go in and out, and the situation of inability to escape due to the earthquake due to the inability to open and close the door. To provide a door with a child door of the building that eliminates the problem.

  In accordance with the above-described problems, the present invention forms a door that is hangably supported by the door frame of the emergency stair escape door by a parent door and a child door that is hangably supported by the child door opening. In some cases, the child door can be evacuated to the emergency staircase, that is, the invention according to claim 1 is a high-rise or high-rise building where an unspecified number of people such as office buildings, schools, hotels, and government offices enter and exit. A new or existing door frame installed at the opening of an emergency stairway exit in an indoor or low-rise building, a main door arranged to be supported by the door frame so as to be opened and closed, and a child door of the main door A door with a child door for building evacuation, which is equipped with a child door for emergency evacuation arranged so as to be openable and closable in the opening, and is used for evacuation from the central corridor of the building to the emergency stairs. Is.

  The invention according to claim 2 can be used for emergency evacuation in the outdoor or indoor area so as to be able to escape from an individual room to a central hallway in a public building where an unspecified number of people enter and exit. Evacuate the building from the individual room to the inner corridor by using the new or existing door frame installed at the opening in the building facing the inner corridor instead of the new or existing door frame installed at the opening of the stairway exit The door with a child evacuation door for building according to claim 1, wherein the door is for use.

  In the invention according to claim 3, in order to ensure the airtightness of the door by arranging an airtight means between the door frame and the main door, the child door opening of the main door and the child door, The building evacuation child according to claim 1 or 2, wherein an airtight means is disposed between the new or existing door frame and the parent door and / or between the child door opening of the parent door and the child door. It is a door with a door.

  According to a fourth aspect of the present invention, the main door is suspended and supported on the door frame by using an earthquake-resistant hinge to prevent the door frame from being deformed and the door cannot be opened and closed as much as possible. 4. The building according to claim 1, wherein the suspension is supported by a seismic hinge so that the main door can be freely opened and closed with respect to the door frame. It is a door with an evacuation child door.

  The invention according to claim 5 is configured so that the child door can be automatically closed, so that the child door can be evacuated as easily as possible without the need for the child door closing operation. The door with a child evacuation door for building evacuation according to claim 1, 2, 3, or 4, wherein the child door is supported to be freely opened and closed with respect to the main door by an auto hinge or a spring hinge. It is.

  In the invention according to claim 6, when the door is a steel door, the door includes a parent door and a child door, a prospective surface is formed on the parent door and the child door, and an area of the prospective surface increases. As a result, the area of the door steel plate used to cover the main door and the child door will increase quantitatively, avoiding an increase in the cost of the door steel plate and the resulting increase in the cost of the door steel plate. In order to make it similar to a steel double-sided flush door, each of these views is used by using the above-mentioned main door and child door, one manufacturer standard steel plate having a lateral width as a standard dimension for each outdoor side and indoor side. The door with a building evacuation child door according to claim 1, 2, 3, 4 or 5, characterized in that the door is made of steel with a surface formed.

  The present invention uses these as the gist of the invention and is a means for solving the above problems.

  Since the present invention is configured as described above, the invention according to claim 1 suspends and supports the door that is hangably supported by the door frame of the emergency stair escape opening so that the door can be opened and closed at the opening of the child door. Due to the deformation of the door frame and the inability to open and close the door in a public building where an unspecified number of people enter and exit, so that it can be evacuated from the child door to the emergency staircase when the door frame is deformed It is possible to provide a door with a child door of a building that eliminates the situation of being unable to escape due to an earthquake.

  The invention according to claim 2 is similar to a public property where an unspecified majority person enters and exits as it can escape from an individual room to a central corridor in a public building where an unspecified number of persons enter and exit. It is possible to provide a door with a child door of a building that eliminates a situation in which it is impossible to escape due to an earthquake due to the deformation of the door frame and the inability to open and close the door.

  The invention according to claim 3 can secure the airtightness of the door by disposing an airtight means between the door frame and the parent door, and the child door opening of the parent door and the child door.

  According to a fourth aspect of the present invention, the main door is suspended and supported on the door frame by using an earthquake-resistant hinge to prevent the door frame from being deformed and the door cannot be opened and closed as much as possible. Can be made as reliably as possible.

  According to the fifth aspect of the present invention, the child door can be automatically closed so that the child door can be evacuated as easily as possible without requiring the child door to be closed.

  In the invention according to claim 6, when the door is a steel door, the door includes a parent door and a child door, a prospective surface is formed on the parent door and the child door, and an area of the prospective surface increases. As a result, the area of the door steel plate used to cover the main door and the child door will increase quantitatively. It can be similar to a double-sided flush door made of metal.

It is a front view of a child door outside opening steel door. It is a rear view of the steel door of FIG. It is a longitudinal cross-sectional view of the steel door of FIG. It is a cross-sectional view of the steel door of FIG. It is explanatory drawing which shows the example of the board cutting of the door side steel plate of FIG. 1, and its processing state. It is a longitudinal cross-sectional view which shows the steel plate arrangement | positioning state of FIG. It is a cross-sectional view which shows the steel plate arrangement | positioning state of FIG. It is explanatory drawing which shows the example of the boarding of the door steel plate of the outdoor side of FIG. 1, and its processing state. It is a longitudinal cross-sectional view which shows the steel plate arrangement | positioning state of FIG. It is a cross-sectional view which shows the steel plate arrangement | positioning state of FIG. It is a longitudinal cross-sectional view of the child door outer opening steel door which concerns on another example. It is a cross-sectional view of the steel door of FIG. It is a longitudinal cross-sectional view of a child door inner opening steel door. It is a cross-sectional view of the steel door of FIG.

  Hereinafter, the present invention will be described in more detail with reference to the examples of the drawings. A is a door with a building evacuation child door, and the door A is an office building in FIGS. 1 to 5 or 6 and 7. A new or existing door frame 1 installed at the opening of an emergency stairway in an outdoor or indoor building in a high-rise or middle-low building where an unspecified number of people enter and exit such as schools, hotels, government buildings, etc., and the door frame 1 is opened and closed. An emergency escape child door 3 is provided from a central corridor of a building, including a main door 2 that is freely suspended and arranged, and a child door 3 for emergency escape that is arranged to be suspended and supported by a child door opening 55 of the parent door 2. It is a steel door for evacuation to the stairs, and in FIG. 11 and FIG. 12, instead of the new or existing door frame installed at the opening of the emergency stair exit outside or indoor, it faces the inner corridor. Use the new or existing door frame 1 installed at the opening in the building , It was for refuge to the middle corridor from a separate room of the building, like a door frame 1, the parent door 2 and Kotobira 3 as a steel door that is made of steel.

  In this example, the buildings include the above-mentioned office buildings, schools, hotels, government buildings, department stores, shopping centers, hospitals, public halls, theaters, libraries, etc. For low-rise buildings, the above emergency stairway exit or individual doors can be used as emergency exit doors that separate the outdoor or indoor emergency staircase from the central corridor, or as emergency exit doors that separate the central corridor from individual rooms. A steel door with a child door provided with the parent door 2 and the child door 3 installed in a new or existing door frame 1 installed in the opening of an indoor doorway is installed. Even when the door frame 1 is deformed as the building is deformed and the main door 2 cannot be opened or closed by being crimped to the steel door A, particularly the main door 2, the door frame 1 The child door opening 55 is independent of the above opening. Therefore, the child door 3 installed to be openable and closable is opened and closed while maintaining the relative positional relationship with the child door opening 55. be able to. Therefore, even when the door cannot be opened or closed due to an earthquake, the child door 3 can be opened and closed to escape from the central corridor to the emergency staircase, or from the individual room to the central corridor, and an unspecified number of people in the building can be specified. It is possible to effectively and appropriately prevent being trapped in the inner corridor or individual room of the floor.

  The child door 3 of the steel door A opens outward or inward. For example, in the opening of the outdoor or indoor emergency stairway exit shown in FIGS. 1 to 7, the child door 3 is opened outwardly, as shown in FIGS. In the opening of the individual room facing the inner corridor, the child door 3 is set as an inner opening. By opening the child door 3 outward at the emergency stairway exit, the child door 3 can be pushed outward to facilitate escape to the emergency staircase, while the child door 3 can be opened at the opening in the individual room facing the inner corridor. By making the door 3 open inward, it is possible to effectively prevent a fallen object or the like from being generated in the event of an earthquake and the child door from being opened and closed.

  The door with the child door, in this example, the steel door A with the child door is a new steel door frame 1 installed at the time of the new construction of the building and a new door that is suspended and supported by the steel door frame 1 As a new door door 1 made of steel and a renovated door suspended and supported by this, or as a refurbished door installed on the existing steel door frame 1 by suspending and supporting the existing door in exchange. Both the new building and the existing building can be provided with a steel door A with a child door for evacuation.

  The door frame 1 is installed so as to surround the inner peripheral surface of the opening, regardless of whether the door frame 1 is existing or newly installed, the frame material on the upper, lower, left, and right sides is rectangular and fixed to the reinforcing bars of the building using anchors. The main door 2 can be freely opened and closed with respect to one of the left and right frame members, that is, one vertical frame, for example, suspended by a hinge disposed between them. The child door 3 is suspended and supported with respect to one side end of the door opening 55 so that the parent door 2 can be opened and closed with respect to the door frame 1 and the child door 3 is made independent of the parent door 2. It can be opened and closed.

  In this example, the suspension support for opening and closing the main door 2 with respect to the door frame is performed by the earthquake-resistant hinge 11, and the suspension support for opening and closing the child door with respect to the parent door is provided with an auto hinge. Or, it is assumed that the spring hinge, in this example, is performed by the auto hinge 12. For example, various hinges such as flat hinges and flag hinges can be used in accordance with ordinary methods. However, by using the earthquake-resistant hinge 11, the door frame 1 can be deformed due to an earthquake. The seismic hinge 11 absorbs the deformation of the door frame 1 to prevent the main door 2 from opening and closing as much as possible, and the main door 2 can be opened and closed to evacuate as much as possible. In addition, by using the auto hinge 12 to support the suspension of the child door 3, for example, the child door 3 opened at the time of evacuation using the child door 3 can be automatically closed without providing a door closer separately. Thus, the operation of closing the child door 3 is omitted so that evacuation can be performed as quickly and reliably as possible.

  Each of the main door 2 and the child door 3 has a high rigidity in which a door steel plate 5 is stretched around the central bone 4 and is configured to be filled with a soundproof heat insulating material as necessary. Thus, the main door 2 and the child door 3 both have thick door steel plates 5 stretched on the front and back sides of the thick steel plate core 4, omitting the filling of the soundproofing heat insulating material and made the inside hollow. It is in the shape of a hollow box.

  The steel door A with a child door is provided with an airtight measure between the door frame 1 and the parent door 2 and between the child door opening 55 of the parent door 2 and the child door 3 as necessary. In the steel door A shown in FIGS. 1 to 4, the steel door A shown in FIGS. 13 and 14 is located between the door frame 1 and the main door 2, and between the sub door opening 55 and the sub door 3 of the main door 2. Similarly, an airtight measure is applied between the door frame 1 and the main door 2 and between the child door opening 55 of the main door 2 and the child door 3, and the airtight measures are between the door frame 1 and the main door 2. For example, as described later, the steel door A shown in FIGS. 1 to 4 is provided in a separate airtight material receiving strip 8 that is integrated with or installed in the door frame 1, and the child door opening of the main door 2. In the steel door A shown in FIGS. 13 and 14 between 55 and the child door 3, the individual airtight material receiving strips 8 that are integrated with or installed in the middle bone 4 exposed at the child door opening 55 are respectively provided. By placing the dense material 9, it is so as to ensure the airtightness between them. In addition, in the steel door A of FIG.11 and FIG.12, the installation of the airtight material is abbreviate | omitted as the thing in the building which faces a corridor.

  The main door 2 and the child door 3 are made of steel in which each of the finding surfaces is formed by using one manufacturer standard steel plate having a lateral width as a standard dimension for each of the outdoor side and the indoor side, Thus, the front and back surfaces of the main door 2 and the child door 3 are stretched and covered using a manufacturer-standard door steel plate 5 for a double-sided flush door made of steel. That is, when the steel door A is provided with the main door 2 and the sub door 3, a prospective surface is formed on the inner periphery of the sub door opening 55 and the outer periphery of the sub door 3 of the main door 2, and these prospects are compared with the double-sided flash door. Since the area of the surface increases, the area of the door steel plate 5 necessary to cover the parent door 2 and the child door 3 will increase quantitatively. For example, in the steel door having the structure of Patent Document 1, If a manufacturer standard steel plate is used, one steel plate is required for each of the indoor side and outdoor side facing surfaces of the main door 2 and the child door 3, that is, a total of four steel plates are required. The steel door A reduces the amount of use of the door steel plate 5, the door steel plate 5 is divided into two half of the above four pieces, and includes the main door 2 and the child door 3. It is equivalent to a general double-sided flush door.

  The reduction in the amount of use of the door steel plate 5 is achieved by omitting all or part of the coating on the outer peripheral side of the main door 2, the child door opening and / or the child door 3 front surface, and for the indoor and outdoor doors. The steel plate 5 covers the face to be found or part of the face of the main door 2 and the child door 3, and the manufacturer standard steel plate and its covering area are adjusted. At this time, if necessary, A door edge 6 having a U-shaped cross-section, L-shape or the like for covering the prospective surface is arranged at the portion where coating is omitted, so that the door 3 can be opened and closed indoors when the child door 3 is opened and closed when the door is opened. A decorative molding is arranged so as to block between the child door opening 55 of the outer indoor side main door 2 and the child door 3, and as a separate blindfold or makeup measure, the prospective surface of the covering omission site is blindfolded or makeupd. The appearance is not impaired by the exposure of the portion where the coating is omitted. Further, as described above, in the case where an airtight measure is taken between the door frame 1 and the outer peripheral surface of the main door 2 or between the child door opening 55 of the main door 2 and the child door 3 finding surface, In the door frame 1, a single or separate airtight material receiving strip 8 is arranged, and in the latter case, the same or separate airtight material is attached to the core 4 of the corresponding part of the parent door 2 or the child door 3. The receiving strip 8 is arranged to avoid the arrangement of the air-tight material receiving strip by bending the door steel plate 5, and the airtightness can be ensured while reducing the covering burden.

  The reduction in the amount of use of the door steel plate will be described with reference to FIGS. 5 to 10 for the steel door A with a child door that opens outside the child door shown in FIGS. 1 to 4. The width of the main door 2 is 800 mm, the height is 2,100 mm, the expected thickness is 56 mm, the width of the child door opening is 567 mm, the height is 1,871 mm, the width of the child door 3 is 522 mm, and the height is 1 , 851 mm, the expected thickness is 40 mm, and the inner side and the outer side of the main door 2 and the child door 3 are covered with a single sheet of the manufacturer's standard door steel plate 5. It ’s gone. In this example, the door steel plate 5 is a roll steel plate having a width of 914 mm, which is specified by the user as 1,900 mm, 2,000 mm, 2,150 mm, 2,438 mm, and in this example, a vertical length of 2,438 mm. Using a standard steel plate set by the manufacturer for a double-sided flush door that has been cut, the steel plate 5 is subjected to predetermined pressing such as cutting, bending, drilling, and the like. The plate processing of each coated steel plate of the door 3, the outer door 2 and the child door 3 is performed.

  That is, in order to cover the double-sided flash door having the width of 800 mm with the standard steel plate 5, there is a margin of slightly over 11 cm in the width direction and less than 34 cm in the height direction. Each of the following expected thicknesses can be absorbed, but in order to cover the main door 2 and the child door 3 with the standard steel plate 5, even if the expected thickness of the main door 2 can be absorbed, particularly on both sides in the width direction. In the prospective surface, a total thickness of about 20 cm is insufficient, that is, an estimated thickness of 56 mm × 2 of the child door opening 55 and about 8 cm of an estimated thickness of 40 mm × 2 of the child door 3.

  The main door 2 and the child door 3 of the present example using the above-mentioned standard steel plate cover the finding surface and the upper end on the outer peripheral side of the main door 2 and the expected surface on both sides, while the lower end is expected. It is assumed that the covering of the surface, the child door opening 55 and the top, bottom, left and right surfaces of the child door 3 is omitted, and the covering load of the steel plate 5 is reduced by omitting the covering of these surfaces, and the covering is omitted at this time. On the prospective surface, there is a door edge 6 covering the prospective surface from the end of the finding surface, and the prospective surface is blindfolded or as a cosmetic measure, and in the steel door A with a child door of this example, Is provided with airtight measures between the door frame 1 and the main door 2 and between the child door opening 55 of the main door 2 and the child door 3, respectively. The receiving strip 8 is arranged, and the airtight material receiving strip 8 is arranged on the middle bone 4 exposed to the child door opening side of the main door 2. By, it is to avoid an increase in the coverage area due to the formation of the hermetic material 受条 8 by the standard steel sheet 5.

  In this example, the two standard steel plates 5 are respectively provided with a main door covering steel plate 51 and a child door covering steel plate 52 on the indoor side from one side, and a main door covering steel plate 53 and a child door covering steel plate 54 on the outdoor side from the other. It is assumed that the inner side and the outer side of the steel door A are completely covered with the two standard steel plates 5 by cutting the plate.

  That is, as shown in FIG. 5 to FIG. 7, an opening having a width of about 540 mm and a height of about 1,853 mm is formed from the one standard steel plate 5 with a width of about 884 mm and a height of about 2,131 mm. For example, the indoor side child door covering steel plate 52 having a width of about 540 mm and a height of about 1,853 mm, for example, is cut off by the indoor side main door covering steel plate 51 formed with the opening 55 and the steel plate obtained by forming the opening 55. In the main door-covered steel plate 55, the upper surface of the main door-covered steel plate 55 has an L-shaped cross section at the upper end and an L-shaped cross section at the left and right ends, for example, about 8 mm extends to the end of the indoor-side finding surface. The bent piece 56 is arranged, and the child door-covered steel plate 52 is also a flat plate for covering the finding surface without arranging the bent piece.

  Further, as shown in FIGS. 8 to 10, the other steel plate 5 has an opening having a width of about 574 mm and a height of about 1,853 mm, for example, having a width of about 884 mm and a height of about 2,131 mm. The outer door door covering steel plate 53 formed 55 and the width of the steel plate obtained by forming the opening 55 is reduced by about 21 mm, for example, the outdoor child door covering having a width of about 552 mm and a height of about 1,853 mm. The steel plate 54 is cut off and, at the upper end of the main door-covered steel plate, about 28 mm is similarly applied to the indoor side at the upper end toward the indoor side. It is assumed that a bent piece 56 bent into an L-shaped cross section is arranged so as to extend, and the child door covering steel plate 54 is also bent so as to extend to the end of the indoor-side finding surface about 8 mm. There as arranged a piece 56. The main door-covered steel plate 53 on which the bent piece 56 is arranged is smaller than the other steel plate 5 by about 2 mm in length and about 1 cm in width, for example. Since the steel plate is extended by the bending process of arranging 56, the coating dimension of the main door 3 is matched. Therefore, the cutting dimension is set in consideration of the extension of the bending process. is there.

  Therefore, the main door covering steel plates 51 and 53 on the indoor side and the outdoor side and the sub door covering steel plates 52 and 54 are, for example, bonded and fixed to the central bone 4 that forms the core material of the main door 2 and the sub door 3. Then, the respective facing surfaces are covered, the prospective surfaces of the respective predetermined portions are covered with the bent strips 56, and the door edge 6 is also adhered and fixed to the remaining prospective surfaces, for example, so that the door edges 6 are expected. The surface is coated and the coating is performed.

  In the figure, 7 is a gap closing strip 10 of the door edge 6 that is disposed on the side of the door end of the child door 3 as necessary, and 10 is also disposed at the lower end of the outdoor surface of the child door 3 if necessary. The draining strip 13 is, for example, a door knob for opening and closing the main door that can be selectively installed with a lever handle, and 14 is a locking device that is used as a thumbtan on the indoor side of the main door 2 and used for key operation on the outdoor side, 15 Is arranged such that the child door 3 can be locked in a three-point manner between the door side expected surface of the child door 3 at the child door opening of the parent door 2 and the upper and lower expected surfaces thereof, and the locking device for the parent door 2 is provided. 14 shows an operation handle of a child door indoor side finding surface arrangement in which the outdoor outdoor operation key is commonly used by 14 outdoor operation keys.

  Although the illustrated example is as described above, instead of the door edge of the child door, for example, the child door of the parent door in the child door that opens outwardly without increasing the covering area of the child door by bending the steel plate A decorative mall made of aluminum or steel formed separately from the steel plate is placed on the outer periphery of the outdoor side of the child door so as to close the gap with the opening. Performing with a spring hinge instead of the hinge, in this case, between the child door opening of the parent door and the child door, for example, the child door opening so that adjustment of the biasing strength of the spring hinge can be avoided as much as possible Place a magnet or magnet catch for holding the child door on the step of the core and the face of the child door to ensure the closing reliability when the child door is opened. Or the present invention including a part made of aluminum, etc. In implementation, each specific shape, structure, material, relationship thereof, addition to these, etc., such as doors with child doors, door frames, parent doors, child doors, child door openings, etc. are not contrary to the gist of the above invention. As long as various forms are possible.

A Door with child door 1 Door frame 2 Parent door 3 Child door 4 Core 5 Steel plate 51 Indoor door-covered steel plate 52 Indoor door-covered steel plate 53 Outdoor door-covered steel plate 54 Outdoor child door coating Steel plate 55 Opening 56 Bending piece 6 Door edge 7 Air gap closing strip 8 Airtight material receiving strip 9 Airtight material 10 Drain strip 11 Seismic hinge 12 Auto hinge 13 Door knob 14 Locking device 15 Operation handle

Claims (6)

  A new or existing door frame installed at the opening of an emergency stairway exit in an outdoor or indoor building in a high-rise to middle-low-rise building where an unspecified number of people enter and exit such as office buildings, schools, hotels, and government buildings, and the door frame It has a main door that is suspended and supported so that it can be opened and closed, and an emergency escape child door that is arranged so that it can be opened and closed so that it can be opened and closed freely. A door with a child door for building evacuation characterized by being used for evacuation.   Use the new or existing door frame installed at the opening in the building facing the inner corridor instead of the new or existing door frame installed at the opening of the emergency stairway exits in the outdoors or indoors. The door with a child evacuation door for building according to claim 1, wherein the door is for evacuation from to the inner corridor.   The building evacuation child according to claim 1 or 2, wherein an airtight means is disposed between the new or existing door frame and the parent door and / or between the child door opening of the parent door and the child door. Door with door.   4. The door with a building evacuation child door according to claim 1, wherein the door frame is supported by a seismic hinge so that the main door can be freely opened and closed.   5. The door with a child evacuation door for building evacuation according to claim 1, wherein the child door is supported to be freely opened and closed with respect to the main door by an auto hinge or a spring hinge.   Each of the main door and the child door is made of steel in which each locating surface is formed by using one manufacturer standard steel plate having a lateral width as a standard dimension for each of the outdoor side and the indoor side. A door with a child escape door for building according to claim 1, 2, 3, 4 or 5.

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