JP2008144474A - Fireproof remodeled door using existing door frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain prevention and interruption of fire between a new door and an existing door frame in case of fire in a remodeled door comprising the new door set in the existing door frame instead of an existing door. <P>SOLUTION: An airtight material setting frame 4 is set around four sides of the frame of the new door 2, the airtight material setting frame 4 including a receiving groove 7 and a step retaining seat 10, and an indoor-side panel 12 is disposed to cover the in-plane part of the receiving groove 7, so that the receiving groove 7 and the step retaining seat 10 are serially exposed to the outer circumference of the indoor width face of the new door 2. A tape-like thermally expanding material 21 of graphite series or the like is precedently disposed in the depth directional bottom part of the receiving groove 7, the airtight material 20 is installed to the indoor side thereof, and the thermally expanding material 21 is similarly disposed in the step retaining seat 10 to be covered with the protruding base part of the airtight material 20. Even if the airtight material 20 is melted and burnt in case of fire, the thermally expanding material 21 expands to seal the existing door frame 1, whereby prevention and interruption of fire is attained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a renovated door for a public house, a condominium, etc., and more particularly to a fireproof refurbished door using an existing door frame.

  For example, as a modified door using this type of existing door frame, the present inventors have removed the existing door and left the existing door frame, the existing door frame installed in exchange for the existing door, A refurbished door has been proposed that is mounted in a series of receiving grooves formed on the outer periphery of the indoor-side finding surface of the new door and includes the existing door frame and an airtight material that seals between the new door.

JP 2005-307696 A

  In this case, for example, by removing the existing door or hinge, painting the existing door frame, installing a hinge such as a seismic hinge, installing a new door, etc. In a very short period of time, for example, a so-called KJ door, which is often used as a so-called KJ door, can be converted into a highly functional door with excellent soundproofing and heat insulation properties. As in the so-called cover method in which a new door frame is covered and fixed, and the new door is installed on the new door frame, it is possible to provide an excellent remodeled door that can prevent narrowing of the opening.

  However, on the other hand, the existing door frame is still used as it is, and the airtightness of the refurbished door is brought into contact with the existing door frame so that the airtight material installed on the outer peripheral surface of the new door is pressed against the existing door frame. Therefore, if the new door is heated like a flame, the airtight material dissolves and disappears, and the existing door frame is often distorted or partially deformed. As a result, a gap remains between the existing door frame and the new door, resulting in a problem that the fire resistance tends to be inferior.

  The present invention has been made in view of such circumstances, and the problem to be solved is to provide a renovated door excellent in various fields by maintaining the above airtight structure as it is and at the same time providing advanced fire prevention performance. The purpose is to provide a fire door that uses the existing door frame as a fire door.

  In accordance with the above-described problems, the present invention provides that the new door frame has a receiving groove for mounting an airtight material on the outer periphery of the indoor-side finding surface, and the receiving groove faces or is located in the vicinity of the existing door frame. Therefore, based on the positional relationship between the receiving groove and the existing door frame, even if the hermetic material dissolves and disappears, the space between the receiving groove and the existing door frame is sealed with a fireproof material instead of the hermetic material. As a thermal expansion material that is placed in front of the airtight material so that the fireproof material that replaces the airtight material is secured on the bottom side in the depth direction of the receiving groove, and is installed in front of the airtight material, In some cases, the thermal expansion material expands so that the receiving groove, that is, the space between the new door and the existing door frame is expanded and sealed to prevent fire prevention. That is, the invention according to claim 1 is provided. The existing door frame left after the door is removed and installed in the existing door frame in exchange for the existing door The door is equipped with a new door and an airtight material that is installed in a series of receiving grooves formed on the outer periphery of the indoor-side finding surface of the new door and seals between the existing door frame and the new door. The thermal expansion material is disposed in advance in the series of receiving grooves, and the airtight material is mounted by fitting a fitting leg portion of the airtight material on the indoor side of the thermal expansion material. It is a fireproof refurbished door using a door frame.

  In addition to the above, the invention according to claim 2 is an advanced technique that uses, for example, an expansion seal of a thermal expansion material when the receiving groove is installed facing an existing door frame, in particular, an indoor-side finding surface. The thermal expansion material is preliminarily disposed at the bottom in the depth direction of the series of receiving grooves so as to ensure fire prevention and high fire resistance. The fire door is renovated using the existing door frame described in Item 1.

  In addition to the above, the invention according to the third aspect of the present invention, in addition to the above, for example, when the receiving groove is installed in the vicinity of the existing door frame, for example, in the vicinity of the indoor-side finding surface or the prospecting surface, The thermal expansion material is placed in advance on one or both sides of the series of receiving grooves so as to ensure a high level of fire barrier properties and a high level of fire resistance. The fireproof renovation door using the existing door frame according to claim 1, characterized in that

  In addition to the above, the invention described in claim 4 is, in addition to the above, in any case where the positional relationship between the receiving groove and the existing door frame is facing or in the vicinity, for example, the indoor side finding surface of the existing door frame is expected. In order to ensure a high level of fire barrier property and a high level of fire barrier property by expanding and sealing the thermal expansion material between the surface, the indoor side finding surface and the concrete frame, A series of step receiving seats that form a low step surface with the indoor side expected surface of the new door are disposed outside the above-described series of receiving grooves on the indoor side finding surface, and a thermal expansion material is additionally added to the step receiving seat. The use of an existing door frame according to claim 1, 2 or 3, characterized in that the thermal expansion material is covered with an overhanging portion that is disposed and projects to the outside of the surface of the fitting leg portion of the airtight material. It is a fireproof renovated door.

  The present invention uses each of these as the gist of the invention as means for solving the above problems.

  Since the present invention is configured as described above, the present invention is based on the positional relationship between the receiving groove of the new door and the existing door frame. Even if the hermetic material dissolves and disappears, the gap between the receiving groove and the existing door frame is determined. Sealing with an alternative fireproofing material ensures the fireproofing of the refurbished door, and replaces the airtight material with the airtight material on the bottom side in the depth direction of the receiving groove. The thermal expansion material is arranged in advance, and when the new door is heated, the thermal expansion material expands so that the receiving groove, that is, the space between the new door and the existing door frame can be expanded and sealed to prevent fire prevention. A fireproof / renovated door using an existing door frame with a fire door as an excellent door can be provided by simultaneously providing a high level of fire resistance while maintaining the secured structure.

  In addition to the above, the invention according to claim 2 is an advanced technique that uses, for example, an expansion seal of a thermal expansion material when the receiving groove is installed facing an existing door frame, in particular, an indoor-side finding surface. It can be assumed that the fire barrier property and the high fire resistance by this can be ensured.

  In addition to the above, the invention according to the third aspect of the present invention, in addition to the above, for example, when the receiving groove is installed in the vicinity of the existing door frame, for example, in the vicinity of the indoor-side finding surface or the prospecting surface, It is possible to secure a high level of fire barrier property by stopping and a high level of fireproof property by this.

  In addition to the above, the invention described in claim 4 is, in addition to the above, in any case where the positional relationship between the receiving groove and the existing door frame is facing or in the vicinity, for example, the indoor side finding surface of the existing door frame is expected. It is possible to ensure a high level of fire barrier property and a high level of fire resistance due to the expansion sealing of the thermal expansion material between the surface, the indoor side finding surface and the concrete frame.

  Hereinafter, the present invention will be described in more detail with reference to the example of the drawings. A is a refurbished door, and the refurbished door A is an existing door frame 1 that has been removed by removing the existing door, and an existing door frame 1 A new door 2 installed in exchange for the door, and a series of receiving grooves 7 formed on the outer periphery of the indoor-side finding surface of the new door 2 to seal between the existing door frame 1 and the new door 2 The thermal expansion material 21 is disposed in advance in the series of receiving grooves 7 at this time, and the fitting leg portion of the airtight material 20 is fitted on the indoor side of the thermal expansion material 21. In this example, the thermal expansion material 21 is pre-arranged at the bottom of the series of receiving grooves 7 in the depth direction. The new door 2 is provided outside the series of receiving grooves 7 on the indoor side of the door 2. A series of step receiving seats 10 that form a low step surface with the indoor side expected surface are arranged, and a thermal expansion material 21 is arranged on the step receiving seat 10 and protrudes to the outside of the fitting leg portion of the airtight material 20. The thermal expansion material 21 is covered with an overhang portion.

  In other words, the refurbished door A was constructed around the 1950s to the 1950s, for example, so that the doors of so-called public housing and private condominiums using steel press doors generally called KJ doors are replaced with high-performance doors. In this example, the new door 2 is made of, for example, a hollow steel hollow portion (not shown) formed in a lattice shape and filled with a sound-insulating heat insulating material 11, and a vinyl chloride steel plate with a decorative surface on the surface. A high level of soundproofing and heat insulation is secured by stretching the indoor side panel 12 and the outdoor side panel 14 made of a steel panel such as a steel plate, and a high level of fireproofing is secured by arranging the thermal expansion material 21, for example, The expected size is 35 mm, and it is a soundproof, heat-insulating and fireproof double-sided flash door suitable for installation in the existing door frame 1, and the new door 2 is replaced and installed in place of the existing door in the KJ door. For example, the existing door is refurbished door A. For example, the existing door is removed, the existing hinge of the existing door is removed, and a new hinge 16 for the new door is attached to the existing door frame 1. For example, by installing earthquake-resistant hinges and using the remaining existing door frame 1 as much as possible, the renovation work for the doors was completed without causing noise in a very short time in the state where the residents of each door lived. To get.

  In this example, the receiving groove 7 in which the airtight material 20 is mounted and the step receiving seat 10 arranged on the outer surface in this example are the upper, lower, left and right sides forming the outer frame that defines the outer shape of the inner bone. The frame member 3 is installed on an airtight material installation frame 4 integrally disposed on the indoor side of the frame material 3 or on the indoor side of the frame material, and these receiving grooves 7 and step receiving seats of the frame material or the airtight material installation frame 4 are installed. 10 is exposed to the indoor-side finding surface of the new door 2, and the indoor panel 12 is disposed outside and indoors, so that the thermal expansion material 21 arranged in advance in the frame material 3 or the airtight material installation frame 4 The arrangement and the mounting of the airtight material 20 are performed.

  That is, in this example, the upper, lower, left, and right frame members 3 have the same cross-sectional shape in which a concave groove forming an airtight material installation space having a C-shaped cross section is formed on the indoor-side finding surface. The above-mentioned concave grooves of the upper, lower, left, and right frame members 3 are arranged so as to be continuously connected to the indoor-side finding surface by fastening the end portions in the direction. It is assumed that a reinforcing frame is arranged between the vertical frame and the intermediate vertical frame to form a lattice formed in a lattice shape. The intermediate frame including the upper, lower, left and right frame members 3 is made of, for example, steel. Therefore, the excellent rigidity is ensured.

  Further, the airtight material installation frame 4 is provided with a prospective piece 5 parallel to the prospective surface and a finding piece 6 parallel to the finding surface and is formed in a substantially L-shaped cross section, and on the inner side of the finding piece 6. The receiving groove 7 has a step receiving seat 10 adjacent to the outside of the surface, and the receiving groove 7 and the step receiving seat 10 are arranged so as to form an L-shaped cross section. It is also made of a metal such as a bent product, an aluminum extruded material, or an aluminum extruded material in this example, and its longitudinal ends are cut off so that they can be butted against each other or are joined by fastening. The receiving groove 7 and the step receiving seat 10 can be continuously arranged in series on the indoor-side finding surface, and at this time, the receiving groove 7 is formed to project from the back side, that is, the outdoor side so as to form a U-shaped cross section. A rib is provided so as to project oppositely in the transverse direction of the receiving groove at the intermediate position on the bottom side in the depth direction. The depth direction interior side is airtight Leg portion insertion portion 8, the bottom of the depth direction exterior side as being divided into thermal expansion material container 9. Accordingly, the depth of the receiving groove 7 is set to a total dimension obtained by adding the depth in the depth direction to the leg portion length of the airtight member 20 and the thickness of the thermal expansion member 21, or a size with some allowance for this. As a thing.

  The hermetic material installation frame 4 accommodates the protruding portions of the receiving grooves 7 protruding in the room in the recessed grooves, and the expected pieces 5 are placed on the expected surfaces of the upper, lower, left and right frame members 3, respectively. The top end of 6 is similarly brought into contact with the finding surface of the upper, lower, left, and right frame members 3 in a superposed manner, and fixed to the upper, lower, left, and right frame members 3 by appropriate fixing means such as adhesion, welding, and screwing. Thus, the receiving groove 7 and the step receiving seat 10 of the hermetic material installation frame 4 are arranged in a L-shaped cross section on the indoor-side finding surface regardless of whether or not they are joined. It is assumed that they are arranged continuously.

  At this time, the arrangement of the indoor and outdoor panels in which the continuous receiving grooves 7 and the step receiving seats 10 are exposed on the indoor-side finding surface of the new door 2 is set so that the size of the indoor-side panel 12 is set in the vertical and horizontal directions. The area of the frame member 3 is adjusted to the area in the plane defined by the receiving groove 7 on the indoor-side expected surface, and the receiving groove 7 on the four circumferences is shorter than the depth from the surface to the position of the rib in this example. The outer door panel 14 covers the entire exterior surface of the new door 2 and has the upper, lower, left, and right frame members 3 on its four sides. In accordance with the expected surface dimension covering the expected surface, for example, the door has the same area as the new door provided with the bent piece 15 whose tip is folded back so as to prevent the exposure of the edge. Thus, the panel formed in the different area inside and outside in the room side panel 12 makes the bent piece 13 of the four circumferences contact the receiving groove 7 of the receiving groove installation frame 4, particularly the groove wall inside the surface thereof. In the outdoor panel 13, the door 2 is received and accommodated so that the inner bone is inserted into the outdoor panel 13, and fixed to the inner bone to form the new door 2. As a result, the receiving door 7 and the step receiving seat 10 formed in the receiving groove installation frame 4 made of the extruded aluminum material in this example are exposed to the new door 2 so that it is exposed to the outer peripheral surface of the indoor side. The series of receiving grooves 7 and step receiving seats 10 are formed.

  The airtight member 20 is formed by integrally forming a hollow contact portion made of a soft resin so that the leg portion and the covering portion are arranged in an L-shaped cross section by, for example, a hard or semi-rigid resin, and the leg portion and the end portion of the covering portion are connected. The leg portion is inserted into the receiving groove 7 of the new door, in particular, the airtight material leg insertion portion 8, and the step receiving seat 10 is covered by the covering portion. The hollow contact portion is in contact with the existing door frame to ensure airtightness between the new door and the existing door frame. At this time, in this example, although the leg portion having the L-shaped cross section and the covering portion are common, the hollow portion projecting toward the indoor side from the leg portion and the covering portion forming the installation base of the hollow contact portion. By selectively using a plurality of kinds of hermetic materials having different projecting widths of the contact portions, for example, the airtightness between the existing door frame 1 and the new door 2 can be increased according to distortion or deformation of the existing door frame 1. It can be completely secured.

  On the other hand, the thermal expansion material 21 is made of, for example, a graphite or ceramic fiber that expands about 8 to 15 times by heating at about 150 ° C., and has a thickness of about 2 to 3 mm. The thermal expansion material 21 is provided with the air-tight material 20, that is, prior to the insertion of the leg portion into the receiving groove 7 and the covering of the step receiving seat 10 by the covering portion, respectively. In this example, a thermal expansion material is further disposed on the step receiving seat 10 and the thermal expansion material 21 is covered with the airtight material coating portion.

  The thermal expansion material 21 is arranged at the bottom of the receiving groove 7 by, for example, inserting and arranging it in the thermal expansion material accommodating portion 9 which is inserted from the longitudinal end portion in the receiving groove 7 and partitioned by the rib. In the step receiving seat 10, the same is placed on the step receiving seat 10 by placing it along the step receiving seat 10 so that the hard resin covering portion is prevented from coming off. The expansion accommodating portion 9 to the step receiving seat 10 or the thermal expansion material 21 is fixed by bonding with an adhesive applied to the back surface thereof.

  In the figure, reference numeral 17 denotes a door handle of the new door 2, and 18 denotes a locking lock for locking which is also installed on the new door 2.

  In this way, the thermal expansion material 21 that is double-arranged with the airtight material 20 in the receiving groove 7 and the step receiving seat 10 causes the airtight material 20 located on the indoor side to be dissolved by the overheating when the new door 2 is heated by a fire. Even if it disappears or does not lead to dissolution disappearance, the airtight material 20 is pushed away, and volume expansion is performed toward the existing door frame 1, and the expansion pressure causes the new door 2, especially the receiving groove 7 in the indoor side finding surface. The space between the step receiving seat 10 and the existing door frame 1 is sealed instead of the airtight material 20, and the space between them is highly airtight and fire-blocked. At this time, in the present example, the thermal expansion material 21 is disposed in the receiving groove 7 and the step receiving seat 10, so that the fire-protection of the thermal expansion material 21 is perpendicular to the outdoor exterior surface of the existing door frame 1. The fire barrier property can be ensured to a very high degree by the two intersecting surfaces of the prospective surfaces.

  Therefore, the new door 2 is a highly functional door that can be installed on the existing door frame 1 by remodeling the door very easily, and is given a fireproof certification as, for example, a class A fire door by giving it a higher level of fireproofing. Can be possible. In addition, the existing door frame 1 is often distorted or deformed. In this example, a plurality of kinds of airtight materials 20 with different projecting widths of the hollow contact portions are selectively mounted in the receiving grooves. By making it flexible, it absorbs distortion and deformation of the existing door frame 1 from the viewpoint of ensuring airtightness, realizes high degree of airtightness while remaining using the existing door frame 1, and double arrangement with the airtight material 20 As long as the new door 2 is not overheated by an indoor or outdoor fire, the thermal expansion material 21 does not hinder the airtightness of the airtight material 20, while the new door 2 is high due to fire overheating. By performing the volume expansion at a magnification, it is possible to completely prevent fire between the existing door frame 1 and the existing door frame 1 near the existing door frame 1 regardless of the presence or absence of the airtight material 20.

  Although the illustrated example is as described above, the thermal expansion material is disposed in advance on one or both side surfaces of the series of receiving grooves, and an airtight material is attached to the indoor side of the thermal expansion material. In this case, a step receiving seat is further disposed in the same manner as described above, and a thermal expansion material is disposed on the step receiving seat, and a series of receiving grooves or the receiving groove and the step receiving seat are provided on the outer periphery of the indoor-side finding surface of the new door. The interior panel of the new door is formed by, for example, press molding, and the interior panel is stretched around the core, and the installation of the airtight material can be freely released by, for example, the volume expansion of the thermal expansion material In addition, for example, by adopting an appropriate fixing means such as adhesion by an adhesive, and omitting the installation of the rib when the airtight material installation frame is a bent product of a steel plate, the renovated door , Its existing door frame, new door, a series of receiving grooves, airtight material, thermal expansion material, Each specific structure of such a step seat to be used according to necessity, shape, material, these relationships, addition or the like for these may be of various forms unless contrary to the gist of the invention.

It is a cross-sectional view of a renovated door. It is a longitudinal cross-sectional view of a renovated door. FIG. 2 is a partially enlarged cross-sectional view of FIG. FIG. 3 is a partially enlarged longitudinal sectional view of FIG. 2.

Explanation of symbols

A Refurbished door 1 Existing door frame 2 New door 3 Frame material 4 Airtight material installation frame 5 Expected piece 6 Finding piece 7 Receiving groove 8 Airtight material leg fitting portion 9 Thermal expansion material accommodating portion 10 Step receiving seat 11 Soundproof and heat insulating material 12 Indoor side panel 13 Bending piece 14 Outdoor panel 15 Bending piece 16 New hinge 17 Door handle 18 Box lock with face 20 Airtight material 21 Thermal expansion material

Claims (4)

  Installed in the existing door frame that has been removed from the existing door, the new door that is installed on the existing door frame in exchange for the existing door, and a series of receiving grooves formed on the outer periphery of the indoor-side surface of the new door A refurbished door provided with the existing door frame and an airtight material for sealing between the new door, wherein a thermal expansion material is disposed in advance in the series of receiving grooves, and the air expansion material is airtightly disposed inside the room. A fireproof / refurbished door using an existing door frame, wherein the airtight material is mounted by fitting a fitting leg portion of the material.   2. The fireproof / refurbished door using an existing door frame according to claim 1, wherein the thermal expansion material is disposed in advance at the bottom in the depth direction of the series of receiving grooves.   2. The fireproof / refurbished door using an existing door frame according to claim 1, wherein the thermal expansion material is disposed in advance on one or both sides of the series of receiving grooves.   A series of step receiving seats that form a low step surface with the indoor side expected surface of the new door are disposed outside the surface of the series of receiving grooves on the indoor facing surface of the new door, and a thermal expansion material is placed on the step receiving seat. 4. The existing installation according to claim 1, 2 or 3, wherein the thermal expansion material is covered with a protruding portion that is additionally disposed and protrudes outward from the surface of the fitting leg portion of the hermetic material. Fireproof renovated door using door frame.

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