Door

Abstract

To provide a door improved in heat insulation.SOLUTION: At least one of vertical frames 4, 5 and an upper frame 6 is composed of a resin material. The frame composed of the resin material is divided into a plurality of hollow sections in the depth direction at least in a portion outside the room from an airtight material. The door body 2 is configured to include four circumferential end members 10-13 and a heat insulating material 17p between an outdoor side surface material 8 and an indoor side surface material 9. At least some of the four circumferential end members 10-13 are composed of a resin material. At least some of the end members 10-13 composed of a resin material are provided with heat insulating materials 17k-17n inside. The heat insulating material 17p between the outdoor side surface material 8 and the indoor side surface material 9 forms a panel. The heat insulating materials 17k-17n inside the end members 10-13 form a block separate from the panel-shaped heat insulating material 17p.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a door, and particularly to improving the heat insulation of the door body.

Background Art

[0002] For a door that requires heat insulation, as disclosed in Patent Document 1 for example, as a door body, between an indoor side surface material and an outdoor side surface material, a four-sided end member (frame member) and a heat insulating material are sandwiched. The end member has a U-shaped cross-section, a heat insulating material is disposed between the end members, and a space layer is formed within the end members.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above-described conventional door, since an air layer is formed within the end members provided as frame members around the four sides of the door body, due to the indoor-outdoor temperature difference, convection occurs inside the end members, resulting in the problem of reducing the heat insulation.

[0005] In view of the above problems, an object of the present invention is to provide a door with improved heat insulation.

Means for Solving the Problems

[0006] The door of the present invention includes a frame body composed of vertical frames, an upper frame, and a lower frame, an opening / closing door body attached to the frame body, and an airtight material provided to block between the frame body and the mating surface of the door body. In the door, at least one of the vertical frame and the upper frame is made of a resin material. At least one of the vertical frame and the upper frame made of the resin material is partitioned into a plurality of hollow portions in the prospective direction at least in a portion outside the airtight material on the outdoor side, and The door body is configured by providing end members and a heat insulating material at the four circumferences between an outdoor side surface material and an indoor side surface material. Among the end members at the four circumferences, at least a part of the end members is made of a resin material. Among the end members made of the resin material, at least a part of the end members is provided with a heat insulating material inside. The heat insulating material between the outdoor side surface material and the indoor side surface material has a panel shape, and the heat insulating material in the end member has a block shape separate from the panel-shaped heat insulating material. and a hollow portion that is at least partially located outside the airtight material in at least one of the vertical frame and the upper frame made of the resinous material, and that is adjacent to the door body, and heat insulating materials are arranged in all the hollow portions that are continuous in the prospective direction It is characterized by this. Further, in the door of the present invention, among the hollow portions continuous in the prospective direction adjacent to the door body in at least one of the vertical frame and the upper frame made of the resin material, on the indoor side of the outermost hollow portion on the outdoor side, It is preferable to have a wall portion facing the outdoor side surface of a pillar or a horizontal member constituting a building body to which the frame body is attached.

Effect of the Invention

[0007] In the present invention, since a heat insulating material is provided inside at least a part of the end members around the door body, convection due to the indoor-outdoor temperature difference inside the end members is prevented, and a door with high heat insulation can be provided. Further, in the present invention, by configuring the end members with a resin material, the heat insulation property of the door body is further improved. Furthermore, by providing a block-shaped heat insulating material separate from the panel-shaped heat insulating material inside the end member, the end member and the heat insulating material can be assembled in separate steps, and the production becomes easy.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0009] FIG. 1 is a view of a door according to an embodiment of the present invention as seen from the indoor side. In FIG. 1, reference numeral 1 denotes a door frame attached to an opening of a housing. Reference numeral 2 denotes a door body that is attached to be openable and closable within the frame 1 by a hinge 3. The frame 1 is formed into a rectangle by combining a suspension-side vertical frame 4, a door-tip side vertical frame 5, an upper horizontal frame (upper frame) 6, and a lower horizontal frame (lower frame) 7 with tapping screws (not shown).

[0010] FIGS. 2, 3, 4, and 5 are enlarged sectional views taken along lines A-A, B-B, C-C, and D-D of FIG. 1, respectively. Prior to the description of the door body 2, first, the structures of the vertical frames 4 and 5, the upper frame 6, and the lower frame 7 that constitute the frame 1 will be described. As shown in FIGS. 2, 3, and 4, the vertical frames 4 and 5 and the upper frame 6 are all made of extruded profiles of resin materials such as PVC (polyvinyl chloride resin). The outdoor sides of these vertical frames 4 and 5 and the upper frame 6 are covered with metal covers 37, 38, and 39 made of an aluminum alloy or the like and fixed by fixtures 41, 42, and 43 such as screws and rivets. The metal covers 37, 38, and 39 are provided to prevent the appearance from deteriorating due to the direct sunlight on the resin frame members.

[0011] As shown in Fig. 2, the part of the vertical frame 4 on the door body 2 side at the suspension end is partitioned into a plurality (four in the illustrated example) of hollow parts 4a to 4d in the prospective direction (indoor / outdoor direction). Further, the outdoor side part of the vertical frame 4 has an extension part 4e extending in the finding direction on the side away from the door body 2, and a hollow part 4f adjacent (adjacent and provided) to the hollow part 4d is also partitioned in the extension part 4e. Among the hollow parts 4a to 4d that are continuous in the prospective direction adjacent (adjacent and provided) to the door body 2 of the vertical frame 4, the vertical frame 4 has a wall part 4h facing the outdoor side surface of the column 50 that constitutes the building body and to which the vertical frame 4 of the frame body 1 is attached, on the indoor side of the outermost outdoor hollow part 4d.

[0012] 17a, 17b, and 17c are heat insulating materials fitted into the hollow parts 4b, 4c, and 4d adjacent to the door body 2 of the vertical frame 4 respectively, and are made of a foamed material such as EPS (expanded polystyrene resin). 4k is a metal core material such as a U-shaped steel plate, and this core material 4k is fitted into the outdoor side hollow part 4d and fixed to the hollow part 4d with a fixture, double-sided tape, adhesive, etc. not shown. The heat insulating material 17c in the hollow part 4d is fitted and fixed in this metal core material 4k.

[0013] 18 is an airtight material made of resin or rubber. This airtight material 18 is interposed between the frame body 1 and the indoor side surface of the door body 2, and closes the gap between the two when the door body 2 is closed. This airtight material 18 is attached to the vertical frame 4 by fitting the base part into an airtight material attachment part 4g formed to protrude from the surface on the door body 2 side. The heat insulating materials 17a to 17c are on the outdoor side of the attachment part of the airtight material 18 in the vertical frame 4 and are respectively arranged in the hollow parts 4b to 4d adjacent to the door body 2. On the other hand, no heat insulating material is arranged in the hollow part 4a on the indoor side of the attachment part of the airtight material 18 and in the hollow part 4f on the outdoor side and not adjacent to the door body 2. 50 is a column that is part of the building body constituting the opening for attaching the frame body 1.

[0014] As shown in Fig. 3, similar to the vertical frame 4 on the suspension side, the part of the vertical frame 5 on the door tip side is partitioned into a plurality (four in the illustrated example) of hollow portions 5a to 5d in the prospective direction. Further, the outdoor side portion of the vertical frame 5 has an extension portion 5e extending in the finding direction on the side away from the door body 2, and a hollow portion 5f adjacent to the hollow portion 5d is also partitioned in the extension portion 5e. The vertical frame 5 has a wall portion 5h facing the outdoor side surface of the column 51 constituting the building body, which attaches the vertical frame 5 of the frame body 1, on the indoor side of the outermost outdoor hollow portion 5d among the continuously hollow portions 5a to 5d adjacent to the door body 2 in the prospective direction.

[0015] 17d, 17e, and 17f are heat insulating materials fitted into the hollow portions 5b, 5c, and 5d on the door body 2 side, respectively, and are made of a foamed material such as EPS. 5k is a metal core material such as a steel plate having a U-shaped cross section. This core material 5k is fitted into the outdoor hollow portion 5d and fixed to the hollow portion 5d with a fixture, double-sided tape, adhesive, or the like (not shown). The heat insulating material 17f in the hollow portion 5d is fitted and fixed in the metal core material 5k.

[0016] In Fig. 3, the airtight material 18 is attached by fitting its base to an airtight material attachment portion 5g formed to protrude from the surface of the vertical frame 5 on the door body 2 side. The heat insulating materials 17d to 17f are located on the outdoor side of the attachment portion of the airtight material 18 in the vertical frame 5 and are respectively arranged in the hollow portions 5b to 5d adjacent to the door body 2. On the other hand, no heat insulating material is arranged in the hollow portion 5a on the indoor side of the attachment portion of the airtight material 18 and in the hollow portion 5f on the outdoor side and not adjacent to the door body 2. 51 is a column that forms a part of the building body constituting the opening for attaching the door frame 1.

[0017] As shown in Fig. 4, similar to the vertical frames 4 and 5, the upper frame 6 is partitioned into a plurality (three in the illustrated example) of hollow portions 6a to 6c in the indoor-outdoor direction on the door body 2 side. Further, the outdoor side portion of the upper frame 6 has an extension portion 6d extending in the finding direction on the side away from the door body 2, and a hollow portion 6e adjacent to the hollow portion 6c is also partitioned in the extension portion 6d. The upper frame 6 has a wall portion 6h facing the outdoor side surface of the horizontal member 52 constituting the building body, which mounts the upper frame 6 of the frame body 1, on the indoor side of the outermost outdoor hollow portion 6c among the continuously adjacent hollow portions 6a to 6c in the expected direction adjacent to the door body 2.

[0018] 17g and 17h are heat insulating materials respectively fitted into the hollow portions 6b and 6c on the door body 2 side of the upper frame 6, and are made of a foaming material such as EPS.

[0019] In Fig. 4, the airtight material 18 is attached by fitting its base to an airtight material attachment portion 6f formed to protrude from the surface of the upper frame 6 on the door body 2 side. The heat insulating materials 17g and 17h are located on the outdoor side of the attachment portion of the airtight material 18 in the upper frame 6 and are respectively arranged in the hollow portions 6b and 6c adjacent to the door body 2. On the other hand, no heat insulating material is arranged in the hollow portion 6a on the indoor side of the attachment portion of the airtight material 18 and in the hollow portion 6e on the outdoor side and not adjacent to the door body 2. 52 is a horizontal member that forms a part of the building body constituting the opening for attaching the door frame body 1.

[0020] As shown in FIG. 5, the lower frame 7 of the present embodiment is composed of an outdoor side frame 7a facing the lower surface of the door body 2 and an indoor side frame 7b, which are formed by extrusion molding of a metal material such as an aluminum alloy. The outdoor side frame 7a and the indoor side frame 7b are connected by a heat insulating material 7c made of rubber or resin. L1 indicates the level of the ground on the outdoor side of this door. The level L1 of this ground is set to be the same level as or slightly lower than the upper surface of the lower frame 7 facing the lower surface of the door body 2. L2 indicates the level of the earthen floor on the indoor side where this door is installed. The level L2 is set to be substantially the same level as the upper surface of a rubber protective material 24 provided on the upper surface of the indoor side portion of the lower frame 7. The protective material 24 is provided to prevent the upper surface of the lower frame 7 from being damaged by the adhesion of sand or the like and to prevent condensation.

[0021] The outdoor side frame 7a of the lower frame 7 is covered with a metal cover 40 made of a stainless steel plate or the like and fixed to the lower frame 7 with fixtures 44 such as rivets and screws. The indoor side frame 7b has a standing upper portion 7b1 facing the indoor side of the door body 2, and an airtight material 18 that abuts against the indoor side surface of the door body 2 is attached to the standing upper portion 7b1.

[0022] In the lower frame 7 of the present embodiment, the outdoor side frame 7a is formed with a substantially rectangular cross-sectional shape. The metal cover 40 is composed of a lower surface portion 40a that covers the outdoor side portion below the lower surface portion 7a1 of the outdoor side frame 7a, a finding surface portion 40b that covers the finding surface portion 7a2 that is the vertical surface on the outdoor side of the outdoor side frame 7a, and an upper surface portion 40c that covers the upper surface portion 7a3 of the outdoor side frame 7a. The indoor side end portion 40d of the metal cover 40 is positioned on the heat insulating material 7c.

[0023] In the present embodiment, an extrusion molding of a metal material is used as the material of the lower frame 7 in order to make it difficult for deformation or the like to occur when a human load is applied to the lower frame 7. Further, by using stainless steel having a higher hardness than the outdoor side frame 7a and the indoor side frame 7b that are extrusion moldings as the metal cover 40, damage to the lower frame 7 due to the adhesion of sand or the like can be prevented, and a deterioration in appearance can be prevented. However, a resin extrusion molding may also be used for this lower frame 7.

[0024] Next, the configuration of the door body 2 and its attachment structure to the frame 1 will be described. The door body 2 includes an outdoor-side surface material 8 and an indoor-side surface material 9 made of metal such as a steel plate, and end members 10, 11, 12, and 13 provided at the suspension-side end (Fig. 2), the door-tip side end (Fig. 3), the upper end (Fig. 4), and the lower end (Fig. 5) of the door body 2, respectively.

[0025] Among these end members 10 to 13, the end members 10, 12, and 13 are made of a resin material. Also, among these end members, the suspension-side end member 10 has a rectangular hollow shape, and the end members 12 and 13 at the upper end and the lower end have a U-shaped cross section.

[0026] On the other hand, as shown in Fig. 3, the door-tip side end member 11 includes two resin-made plate materials 15, 15 each having an L-shaped cross section and arranged at the indoor-outdoor corner portions for attaching the door-tip side cover 14, a metal-made outdoor-side core material 19 such as a steel material provided therebetween, and a resin-made indoor-side core material 20 fixed to the indoor side of this core material 19 by a double-sided tape or the like. Then, the end member 11 is covered with the door-tip side cover 14, and the door-tip side cover 14 is fixed to the core material 19 by a fixing tool such as a rivet or a screw (not shown), thereby attaching the door-tip side cover 14 to the door body 2. 22 is a resin or rubber plug attached to the outdoor side of the door-tip side cover 14, and it abuts against the outdoor-side finding surface 38a of the metal-made cover 38 of the door-tip side vertical frame 5 to assist in suppressing the intrusion of outside air.

[0027] As shown in Fig. 2, the suspension-side end member 10 of the door body 2 has an exposed portion 10a that protrudes outward in the finding direction of the door body 2 as a part thereof. With respect to the suspension-side end member 10 of the door body 2, the outdoor-side surface material 8 and the indoor-side surface material 9 do not cover the exposed portion 10a and have a shape formed by bending the prospective surface portions 8b and 9b in an L shape short from the ends of the finding surface portions 8a and 9a. The surface materials 8 and 9 are fixed to the end member 10 by rivets (not shown) and adhered by an adhesive at the prospective surface portions 8b and 9b.

[0028] As shown in FIGS. 4 and 5, at the upper and lower ends of the door body 2, the prospective surface portions 8b and 9b of the surface materials 8 and 9 extend to near the central portion in the prospective direction of the door body 2, that is, longer than the prospective surface portions 8b and 9b on the suspension side shown in FIG. 2, and are fixed to the end members 12 and 13 by rivets or adhesives (not shown).

[0029] In FIGS. 2, 4, and 5, 17k, 17m, and 17n are heat insulating materials arranged and fixed inside the end members 10, 12, and 13 respectively, and are provided to improve the heat insulation performance at the ends of the door body 2. The materials of these heat insulating materials 17k, 17m, and 17n are not particularly limited, but preferably, block-shaped heat insulating materials of the same material as the heat insulating materials 17a to 17h accommodated in the frame body 1 are used.

[0030] 17p is a panel-shaped heat insulating material (heat insulating panel) that constitutes the door body 2 together with the end members 10 to 13 and the surface materials 8 and 9. This heat insulating material 17p is accommodated and fixed by adhesion in a frame formed in a box shape by the outdoor surface material 8, the indoor surface material 9, and the end members 10 to 13. As the heat insulating material 17p, materials of the same material as the heat insulating materials 17a to 17n or, for example, a phenolic foam heat insulating board (manufactured by Asahi Kasei Building Materials Corporation, trade name: Neo Mafoam (Neo is a registered trademark)) with higher heat insulation performance than these may be used.

[0031] Next, the mounting structure on the suspension side of the door body 2 will be described with reference to FIG. 2. 25 is a core material made of metal such as steel for reinforcing the suspension side of the door body 2. This core material 25 has an L-shaped cross-sectional shape and is arranged inside the hollow end member 10 between the outdoor corner portion 10c and the indoor corner portion 10d in the indoor-outdoor direction. 32 is a back plate for coupling to the mounting plate 3b of the hinge 3 described later. The core material 25 is attached to the end member 10 by fixing this back plate 32 to the core material 25 and then coupling it to the prospective surface portion 10b of the end member 10 with mounting screws or the like (not shown).

[0032] The reason for making the cross-sectional shape of this core material 25 into a substantially L-shape with a projected surface portion 25b and a locating surface portion 25c and fixing it inside the outdoor corner portion 10c of the end member 10 is to suppress heat transfer to the side where there is no corner of the L-shape in the substantially L-shaped cross-sectional shape by this core material 25 and the end is facing. That is, by positioning the metal core material 25 inside the outdoor side of the end member 10 and positioning the narrow end portion 25a of the projected surface portion 25b of the core material 25 on the indoor side, the heat transfer area of the core material 25 to the indoor side is narrowed to suppress heat transfer by the core material 25. Further, by positioning the indoor side end portion 25a of the core material 25 outside the outdoor side end portion 9b1 of the projected surface portion 9b of the indoor side surface material 9, heat transfer between the core material 25 and the indoor side surface material 9 is suppressed, enhancing the heat insulation performance.

[0033] The hinge 3 has a frame-side mounting plate 3a and a door-body-side mounting plate 3b. Reference numeral 28 denotes a hinge mounting screw for mounting the frame-side mounting plate 3a to the vertical frame 4. By passing this hinge mounting screw 28 through the door-body-side mounting plate 3a and a through-hole provided in the projected surface portion 4m on the door-body side of the vertical frame 4 and screwing and fastening it to a screw hole of a back plate 29 fixed in a core material 4k fixed in the hollow portion 4d, the frame-side mounting plate 3a is fixed to the vertical frame 4.

[0034] Reference numeral 31 denotes a hinge mounting screw for fixing the door-body-side mounting plate 3b to the door body 2. By passing this hinge mounting screw 31 through the door-body-side mounting plate 3b and through-holes provided in the projected surface portion 10b of the end member 10 and the core material 25, and for some of the screws 31, also through the projected surface portion 8b of the outdoor side surface material 8 of the door body 2, and screwing and fastening it to a screw hole of a back plate 32 applied to the back side of the core material 25, the door-body-side mounting plate 3b is fixed to the door body 2.

[0035] The sealant 35 closes the gap between the vertical frame 4 of the frame body 1 and the door body 2, and supplements the suppression of the intrusion of outside air. This sealant 35 is made of rubber or resin. In the present embodiment, the contact portion 35a that contacts the door body 2 and bends is configured by a fin. This sealant 35 is fixed and attached to the prospective surface portion 4m of the vertical frame 4 on the door body side by a fixture such as a rivet 36. In the state where the door is closed, as shown in the figure, the contact portion 35a of the sealant 35 contacts the exposed portion 10a of the prospective surface of the end member 10 to close the gap between the vertical frame 4 and the door body 2. In this way, by bringing the contact portion 35a of the sealant 35 into contact with the exposed portion 10a of the end member 10, the indoor side surface material 9 of the door body 2 is blocked by the sealant 35. Therefore, in addition to improving the airtightness by the airtight material 18, the thermal influence of the outside air on the indoor side surface material 9 is reduced, and the heat insulation performance is improved. Also, as shown in FIGS. 2 and 6, an area 60 that is blocked from the outside and the inside is formed by the airtight material 18, the sealant 35, and the door body 2.

[0036] As described above, in the present embodiment, as shown in FIGS. 2, 4, and 5, since the heat insulating materials 17k, 17m, and 17n are provided in the end members 10, 12, and 13 respectively, convection due to the temperature difference between the inside and outside of each end member 10, 12, and 13 is prevented, the heat insulation performance of the end members 10, 12, and 13 is improved, and the heat insulation performance of the door body 2 is improved.

[0037] Also, in the present embodiment, since resin materials with high heat insulation performance are used for the end members 10, 12, and 13, the heat insulation performance can be further improved.

[0038] When providing a heat insulating material inside the end members 10, 12, and 13, the ends of the panel-shaped heat insulating material 17p arranged inside the surface materials 8 and 9 may be arranged in a form where they are fitted into the end members 10, 12, and 13, or the end members 10, 12, and 13 may be filled by injecting a heat insulating material having fluidity. However, as shown in the present embodiment, by arranging the block-shaped heat insulating materials 17k, 17m, and 17n, which are separate from the panel-shaped heat insulating material 17, inside the end members 10, 12, and 13 respectively, the end members 10, 12, and 13 and the heat insulating material 17p can be assembled in separate processes, making the production easier.

[0039] In the above embodiment, since the end member 10 is formed in a hollow shape, the strength can be enhanced. However, as shown in FIG. 6, the end member 10X on the suspension side may have a U-shaped cross-sectional shape. In FIG. 6, the end member 10X includes an outdoor corner portion 10X1 and an indoor corner portion 10X2. Also, similar to the embodiment shown in FIG. 2, the portion of the vertical frame 4 on the door body 2 side of the suspension side is partitioned into a plurality (four in the illustrated example) of hollow portions 4a to 4d in the prospective direction (indoor-outdoor direction). Further, the outdoor side portion of the vertical frame 4 has an extension portion 4e extending in the finding direction on the side away from the door body 2, and a hollow portion 4f adjacent to the hollow portion 4d is also partitioned in the extension portion 4e. The vertical frame 4 has a wall portion 4h facing the outdoor side surface of the column 50 that constitutes the building body and to which the vertical frame 4 of the frame body 1 is attached, on the indoor side of the outermost outdoor hollow portion 4d among the hollow portions 4a to 4d that are continuous in the prospective direction adjacent to the door body 2.

[0040] Although the present invention has been described based on the embodiments, when implementing the present invention, as the frame body 1, materials and configurations other than those shown in the above embodiments can be used. In addition, when implementing the present invention, various changes and additions can be made to the constituent members and their combinations without departing from the gist of the present invention.

Explanation of Reference Numerals

[0041] 1 Frame body 2 Door body 10, 10X, 11 to 13 End members 17a to 17h, 17k, 17m, 17n, 17p thermal insulation materials

Claims

1. A door comprising a frame body composed of a vertical frame, an upper frame, and a lower frame, an opening and closing door body attached to the frame body, and an airtight material provided to close the space between the frame body and the mating surface of the door body. In the door, at least one of the vertical frame and the upper frame is made of a resin material, at least one of the vertical frame and the upper frame made of the resin material has at least a portion on the outdoor side of the airtight material partitioned into a plurality of hollow portions in the prospective direction, and the door body is configured by providing end members and a heat insulating material at the four circumferences between an outdoor side surface material and an indoor side surface material, at least a part of the end members among the end members at the four circumferences is not made of a resin material, among the end members made of the resin material, at least a part of the end members is provided with a heat insulating material inside. The heat insulating material between the outdoor side surface material and the indoor side surface material forms a panel shape, and the heat insulating material in the end member forms a block shape separate from the panel-shaped heat insulating material. In at least one of the vertical frame and the upper frame made of the resin material, in a hollow portion at least partially located on the outdoor side of the airtight material, heat insulating materials are arranged in all the hollow portions adjacent to the door body and continuous in the prospective direction. The door is characterized by the above.

2. In the door according to Claim 1, among the hollow portions adjacent to the door body and continuous in the prospective direction in at least one of the vertical frame and the upper frame made of the resin material, on the indoor side of the outermost outdoor hollow portion, there is a wall portion facing the outdoor side surface of a column or a horizontal member constituting the building body to which the frame body is attached. The door is characterized by the above.

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