JP6431331B2 - Thermal insulation repair method for existing entrance doors and buildings with existing entrance doors that have undergone thermal insulation repairs - Google Patents

Description

  The present invention relates to a heat insulation repair method for an existing entrance door provided in a building, and a building including an existing entrance door that has been subjected to heat insulation repair.

  Conventionally, entrance doors provided in buildings such as houses have a high heat transfer rate (low thermal insulation) compared to the walls of the building, and especially in winter, there is cold air from the indoor side exposed part of the entrance door to the indoor space. There was a problem that the thermal environment in the indoor space deteriorated due to the radiation.

  For such a problem, for example, there is a method of improving the heat insulation by replacing the existing entrance door with a new entrance door having high heat insulation, but the whole entrance door frame must be replaced. Construction will be required.

  Therefore, a method has been proposed in which the existing entrance door frame is covered with a new entrance door frame without removing the existing entrance door frame, and the existing entrance door is replaced with a small new entrance door (Patent Document). 1).

JP 2000-96923 A

  According to such a method of replacing an existing entrance door with a new door having high heat insulation properties while leaving the existing entrance door frame, the thermal environment of the building can be improved. However, since new entrance door frames and entrance doors must be manufactured separately according to the internal dimensions of the existing entrance door frames, when using standardized commercial entrance door frames and entrance doors There is a problem that much time and cost are required.

  Therefore, the present invention provides a method for heat-insulating and renovating an existing entrance door that can easily improve the heat insulating property of the entrance door without exchanging the existing entrance door, and a building including the existing entrance door that has been subjected to heat insulation and repair. The purpose is to provide.

  The present invention has been made to solve the above-mentioned problems, and the heat insulation repair method for an existing entrance door according to the present invention is characterized in that a heat insulating material is attached to the indoor side exposed portion of the existing entrance door by a fixing means. It is what.

  Moreover, in the heat insulation repair method of the existing entrance door of this invention, it is further preferable to attach a heat insulating material with the said fixing means with respect to the indoor side exposed part of the existing entrance door frame.

  Moreover, in the heat insulation repair method of the existing entrance door of this invention, it is preferable that the said heat insulating material is a plastic-type heat insulating material.

  Moreover, in the heat insulation repair method of the existing entrance door of this invention, it is preferable that the surface of the said heat insulating material is covered with the resin film.

  Moreover, in the heat insulation repair method of the existing entrance door of this invention, the said fixing means is an adhesive agent or an adhesive, and melting | fusing point of this adhesive agent or an adhesive agent is lower than the ignition point of the said heat insulating material. Is preferred.

  Moreover, in the heat insulation repair method of the existing entrance door of this invention, it is preferable that the said fixing means is a magnet and the temperature at which this magnet loses magnetic force is lower than the ignition point of the said heat insulating material.

  Moreover, the building of this invention is equipped with the existing entrance door heat-insulated and repaired by said method.

  According to the present invention, without replacing the existing entrance door, it is possible to easily improve the heat insulating property of the entrance door, and to improve the heat insulation of the entrance door, and the building including the existing entrance door that has been heat-insulated It becomes possible to provide.

(A) is the front view seen from the indoor side which shows an example of the entrance door which performed heat insulation repair by the heat insulation repair method of the existing entrance door which concerns on this invention, (b) is FIG. 1 (a). It is AA sectional drawing of the entrance door shown in FIG. (A) is the front view seen from the indoor side which shows the other example of the entrance door which performed heat insulation repair by the heat insulation repair method of the existing entrance door which concerns on this invention, (b) is FIG. It is BB sectional drawing of the entrance door shown to a). (A) is the elements on larger scale of FIG.2 (b), (b) is a figure which shows an example of the floor plan of the building which can apply this invention. (A) is a front view showing the existing entrance door before performing the heat insulation repair method, (b) is CC sectional drawing of the entrance door shown to Fig.4 (a).

  Hereinafter, the heat insulation repair method of the existing entrance door which concerns on this invention is demonstrated in detail, referring drawings. The present invention can be applied to, for example, an existing entrance door provided in a steel-framed two-story house. Here, FIG. 3 (b) partially shows an example of a floor plan of a house to which the present invention is applied. There is a entrance soil on the indoor side of the entrance door, and the living room through the entrance hall and the corridor. Etc. are connected to each room. In addition, although the outer wall of a building is not limited to this, For example, it can be set as ALC. Further, a plastic heat insulating material is provided inside the outer wall.

  FIG. 1A shows an existing entrance door (hereinafter also simply referred to as “door”) 1 and an existing entrance door frame (hereinafter also simply referred to as “door frame”) to which a heat insulating material H is attached by the heat insulation modification method of the present invention. 2 is a front view as viewed from the indoor side, and FIG. 1B is a cross-sectional view taken along the line AA in FIG. 4A and 4B show the door 1 and the door frame 2 before the heat insulating material H is attached.

  In the existing entrance door 1, main components such as a face material and an internal framework are made of metal such as steel and aluminum, and a handle 3 for performing an opening / closing operation of the door 1 and a door 1 are provided in an indoor exposed portion. A lock 4 for locking the door and a part portion to which an accessory such as a door closer 5 for automatically closing the opened door 1 and controlling the opening and closing speed is attached. In addition, an indoor side exposed part shall mean the part exposed to the indoor side in the state which closed the door 1. As shown in FIG.

  The existing entrance door frame 2 surrounding the door 1 is fixed to the building frame, and its main constituent members are made of metal such as steel or aluminum. The door 1 is pivotally attached to the door frame 2 by a hinge 6 so that it can be opened and closed on the outdoor side. In addition, although illustration is abbreviate | omitted, the airtight member is provided between the door 1 and the door frame 2, and when the door 1 is the closed state, inflow of the external air from a clearance gap is interrupted | blocked.

  When performing heat insulation repair by the heat insulation repair method of the present embodiment, for the flat portion 1a excluding the parts in the indoor side exposed portion of the existing entrance door 1 shown in FIGS. 4 (a) and 4 (b), The heat insulating material H is attached by using an adhesive, a pressure-sensitive adhesive, or a magnet fixing means F. In the present embodiment, as shown in FIG. 1A, the heat insulating material H is attached except for a partial region including the handle 3 and the upper and lower locks 4 and a region around the door closer 5. Moreover, in this embodiment, the heat insulating material H is also attached to the indoor side exposed part of the door frame 2 by the fixing means F.

  The heat insulating material H is not particularly limited, and an arbitrary material can be used, but it is preferable to use a plastic heat insulating material. In this case, compared with glass wool or rock wool, the heat insulating performance is reduced due to condensation. Can be reduced. Examples of the plastic heat insulating material include phenol foam, polystyrene foam, and urethane foam.

  In addition, it is preferable that the surface of the heat insulating material H is covered with a resin-based film (sheet), and thereby the heat insulating material H can be prevented from deteriorating due to the influence of ultraviolet rays or the like. The resin film is not particularly limited, but is preferably a vinyl chloride film. In this case, since a free design can be easily applied to the film surface, the design can be easily improved. Moreover, since it is a thin sheet | seat, it can be made to respond | correspond easily to the shape of the heat insulating material H. It is also possible to cover the heat insulating material H with a metal plate instead of a resin film. In this case, there is an advantage that the rigidity is higher than that of the resin film and it is difficult to burn.

  When an adhesive or a pressure sensitive adhesive is used as the fixing means F, the melting point is preferably lower than the ignition point of the heat insulating material H. By adopting such a configuration, even if an external fire occurs and the surface temperature of the exposed portion on the indoor side of the door 1 increases, an adhesive or a pressure-sensitive adhesive is generated before the heat insulating material H is ignited. However, the heat insulating material H peels off due to loss of holding power, and the heat insulating material H can be prevented from burning. Furthermore, since the heat insulating material H peels from the door 1 and the door frame 2, it becomes easy to radiate heat from the indoor side exposed portions of the door 1 and the door frame 2, and the temperature rise of the door 1 and the door frame 2 can be delayed.

  The adhesive is not particularly limited, and any adhesive can be used. For example, a special urethane adhesive that is thermally decomposed and foamed at around 280 ° C. and loses adhesive strength (holding power). Agents can be used.

  The pressure-sensitive adhesive is not particularly limited, and any one can be used, but it is preferable to use a modified silicone-based pressure-sensitive adhesive (for example, trade name: BBX manufactured by Cemedine Co.). Since the holding power is lost at around 80 ° C., it is relatively easy to peel off, and there is an advantage that the adhesive does not easily remain on the attached surface.

  When a magnet is used as the fixing means F, for example, a thin magnet is attached to the surface of the heat insulating material H attached to the door 1 or provided inside the heat insulating material H. And it can attach to the metal door 1 using the magnetic force of a magnet. Thus, when a magnet is used as the fixing means F, attachment work is easy, and peeling and reattachment are possible. Moreover, when using a magnet as the fixing means F, it is preferable that the temperature (Curie temperature) at which the magnet loses magnetic force is lower than the ignition point of the heat insulating material H. Thereby, even at the time of a fire, before the heat insulation material H ignites, a magnet loses magnetic force, the heat insulation material H peels, and the combustion of the heat insulation material H can be suppressed.

  As described above, in the heat insulation refurbishment method of the present invention, the heat insulating material H is attached to the indoor side exposed portions of the door 1 and the door frame 2 so that the heat insulating property is mainly composed of a metal that easily transmits heat. The heat insulating property of the entrance door 1 that tends to be lowered can be improved, and the temperature drop in the room can be suppressed. Moreover, since it can utilize as it is, without replacing | exchanging the existing entrance door 1, heat insulation can be improved, suppressing cost by simple operation | work. In addition, the steel building is generally difficult to ensure the heat insulation of the entire building compared to the wooden building, so the thermal environment of the entire building can be enhanced by increasing the heat insulation of the entrance door. Is particularly effective.

  Next, another embodiment according to the present invention will be described with reference to FIGS. 2 (a) and 2 (b). In addition, the structure which has the same function as embodiment mentioned above attaches | subjects the same code | symbol, and abbreviate | omits description.

  In this embodiment, as shown to Fig.2 (a), (b), the heat insulating material H is attached to the flat part 1a except a component part without gap. As shown in FIG. 1 (a), compared to the case where the heat insulating material H is attached except for a part of the periphery of the part portion, the indoor side exposed portion of the door 1 is used as a part, although accuracy during attachment is required. By covering the area with the heat insulating material H with no gaps except for the portion, the heat insulating property can be further enhanced.

  In addition, as shown in FIG. 3A, in the present embodiment, among the indoor side exposed portions of the door frame 2, the heat insulating material H is attached from the indoor side front surface 2 a to the side surface 2 b and is attached to the door 1. It arrange | positions so that the edge part of the heat insulating material H and the edge part of the heat insulating material H attached to the door frame 2 may overlap in the front-back direction. In this way, by covering the side surface 2b of the indoor side exposed portion of the door frame 2 with the heat insulating material H and arranging the heat insulating material H so as to overlap in the front and rear at the boundary portion between the door 1 and the door frame 2, Thermal insulation can be improved. Moreover, as shown to Fig.3 (a), heat insulation can be improved further by closing the clearance gap between the heat insulating materials H attached to the door 1 and the door frame 2 with the airtight member 7. FIG. In the present embodiment, the building provided with the existing entrance door is a detached house, but it may be a apartment house. Entrance doors with high thermal insulation properties generally have poor fire resistance, so they cannot be used in apartment buildings, and entrance doors with poor thermal insulation properties are often used. Nevertheless, the entrance doors of apartment buildings fall under the common area and cannot be changed freely by residents. Therefore, when the building is a condominium, heat insulation renovation in which a heat insulating material is attached to the indoor side exposed portion of the existing entrance door is suitable.

DESCRIPTION OF SYMBOLS 1 Existing entrance door 1a Flat part 2 Existing entrance door frame 2a Front 2b Side 3 Handle 4 Lock 5 Door closer 6 Hinge F Fixing means H Thermal insulation

Claims (7)

A heat insulating material is attached by fixing means to the indoor side exposed part of the existing entrance door ,
The method for heat insulation renovation of an existing entrance door, wherein the fixing means is a magnet, and the temperature at which the magnet loses magnetic force is lower than the ignition point of the heat insulating material .   Furthermore, the heat insulation repair method of the existing entrance door of Claim 1 which attaches a heat insulating material with the said fixing means with respect to the indoor side exposed part of the existing entrance door frame.   The said heat insulating material is a heat insulation repair method of the existing entrance door of Claim 1 or 2 which is a plastics-type heat insulating material.   The heat insulation repair method of the existing entrance door as described in any one of Claims 1-3 with which the surface of the said heat insulating material is covered with the resin-type film.   The fixing means is an adhesive or a pressure-sensitive adhesive, and the melting point of the adhesive or the pressure-sensitive adhesive is lower than the ignition point of the heat insulating material. Insulation renovation method. The building provided with the existing entrance door heat-insulated by the method as described in any one of Claims 1-5 . A heat insulating material is attached by fixing means to the indoor side exposed part of the existing entrance door,
The heat insulating structure of the entrance door, wherein the fixing means is a magnet, and the temperature at which the magnet loses magnetic force is lower than the ignition point of the heat insulating material.

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