Renovated fitting

Abstract

To provide a renovated fitting having better thermal insulation properties.SOLUTION: A renovated fitting to be attached to an inner periphery of an existing frame body includes: a newly constructed frame having a metal exterior frame placed on the outside of a room, a metal interior frame placed on the inside of the room, and a heat insulation material interposed between the exterior frame and the interior frame; and a sash having a synthetic resin frame and placed on the inner periphery of the newly constructed frame.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a renovation fixture that is attached to the inner periphery of an existing frame body. [Background technology]

[0002] Conventionally, there has been known a remodeling fixture that is attached to the inner periphery of an existing frame that is attached to a building opening (see, for example, Patent Document 1). This remodeling fixture has a new frame and an aluminum attachment frame that is attached to the inside of the existing frame while being attached to the outer periphery of the new frame, and the attachment frame is divided into two in the prospective direction into an exterior frame part and an interior frame part to improve the heat insulation function, and the exterior frame part and the interior frame part are integrally connected by a resin bridge material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-56413 A Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, even if the aluminum exterior frame section and the interior frame section are connected by a resin bridging material, there was a problem that the insulation properties would be compromised if the frame that makes up the shoji screen supported by the newly installed frame was made of aluminum. The present invention has been made in view of the above problems, and an object of the present invention is to provide a remodeling fixture having superior heat insulation properties. [Means for solving the problem]

[0005] The main invention for achieving this purpose is a remodeling fixture that is attached to the inner periphery of an existing frame body, A renovation fixture that is attached to the inner periphery of an existing frame body, A metal exterior frame disposed on the exterior side of the room; A metal interior frame arranged on the interior side of the room; A heat insulating material interposed between the exterior frame and the interior frame; A new quota with the following characteristics: A shoji screen having a frame made of synthetic resin and arranged on the inner periphery of the newly installed frame; It is a renovation fixture characterized by having the following features. Other features of the present invention will become apparent from the following detailed description of the present invention and the accompanying drawings. Effect of the Invention

[0006] According to the present invention, it is possible to provide renovated fittings with better insulation properties. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a vertical cross-sectional view showing the state in which the remodeling fixture according to the present embodiment has been installed. [Diagram 2] FIG. 2 is a cross-sectional view showing the state in which the remodeling fixture according to this embodiment has been installed. [Diagram 3] FIG. 2 is an enlarged view of part A in FIG. [Figure 4] This is a vertical cross-sectional view showing the fit of the lower part of a renovated fixture attached to an existing frame of the internal type. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of a remodeling fixture according to the present invention will be described with reference to the drawings. The renovated fixture 1 of this embodiment is installed on the inner side of an existing frame body (hereinafter referred to as the existing frame) 8, which is obtained by removing a shoji screen (not shown) from an existing fixture installed in a building, etc., as shown in Figures 1 and 2.

[0009] In this embodiment, a fitting for a sliding window will be used as an example of the renovated fitting 1, but it is not limited to this and can be any fitting that has a shoji screen that is placed on the inner periphery of a newly installed frame, such as a renovated fitting for a fixed window in which a newly installed shoji screen is fixed to a newly installed frame, or a renovated fitting for a casement window in which the newly installed shoji screen rotates.

[0010] In the following explanation, when the existing frame 8 and remodeled fixture 1 are viewed from the inside of a room while attached to a building, the up and down directions are referred to as the up and down directions, the left and right directions are referred to as the left and right directions, and the depth direction, which is the indoor and outdoor direction, is referred to as the prospective direction. Even for each part of the existing frame 8 and remodeled fixture 1, and even for each component that composes the existing frame 8 and remodeled fixture 1 in a standalone state, the directions are specified as the up and down directions, left and right directions, and depth directions when attached to a building, etc. In addition, since the existing frame 8 and the frame body (hereinafter referred to as the new frame) 2 that the remodeled fixture 1 are provided with are both framed in a rectangular shape, the inside of the rectangle will be described as the inner circumference side, and the outside as the outer circumference side.

[0011] The existing frame 8 is formed into a rectangular shape by an existing aluminum upper frame 80, an existing lower frame 81, and existing left and right vertical frames 82, and the existing upper frame 80, the existing lower frame 81, and the existing left and right vertical frames 82 are each fixed to the main body 9 with screws. The renovated fixture 1 comprises a new frame 2, and an outer screen 3a and an inner screen 3b that are arranged on the inner side of the new frame 2 and are capable of closing an opening 2a formed by the new frame 2.

[0012] Both the outer screen 3a and the inner screen 3b have a rectangular double-glazed glass 30 and a frame 31 made of synthetic resin that houses the peripheral edge of the double-glazed glass 30. The frame 31 is made up of an upper frame 31a, a lower frame 31b, a door end frame 31c, and a joint frame (not shown) that are assembled into a rectangular shape and their ends are fused together to form a rectangular shape. The peripheral edge of the double-glazed glass 30 is housed inside the frame 31.

[0013] The new frame 2 is framed in a rectangular shape by a new upper frame 4, a new lower frame 5, and new left and right vertical frames 6. The new upper frame 4 has an upper metal frame 40 made of metal and an upper resin frame 41 made of synthetic resin. The upper metal frame 40 has two upper rails 40a that are suspended downward and guide the outer and inner screens 3a and 3b. The upper resin frame 41 is fitted to the indoor side of the outer upper rail 40a that guides the outer screen 3a, and is arranged so as to cover the part of the upper metal frame 40 that is indoors beyond the outer upper rail 40a from the inner periphery.

[0014] The upper metal frame 40 has an upper exterior metal frame 40b made of an aluminum extrusion material arranged on the exterior side of the room, and an upper interior metal frame 40c made of an aluminum extrusion material arranged on the interior side of the room. The upper exterior metal frame 40b and the upper interior metal frame 40c are connected with a synthetic resin insulation material 40d interposed therebetween. The upper exterior metal frame 40b of the upper metal frame 40 is fixed to the existing upper frame 80 via an attachment 42 with a screw that enters from the inner circumference side, and the upper newly installed fin portion 40e provided at the end of the interior side of the upper interior metal frame 40c is fixed to the main body 9 with a screw 7 that enters from the inner circumference side.

[0015] The left and right newly installed vertical frames 6 have vertical metal frames 60, 61 made of metal and vertical resin frames 62, 63 made of synthetic resin. The left and right vertical metal frames 60, 61 are both extruded aluminum profiles, and the left vertical metal frame 60 and the right vertical metal frame 61 have different positions in the forward direction of the parts that engage with the shoji screens 3a, 3b. The left and right vertical metal frames 60, 61 have newly installed vertical fins 60a, 61a provided at the ends on the inside of the room that are fixed to the main body 9 by screws that enter from the inner circumference side.

[0016] The left vertical metal frame 60 has a left shoji engagement part 60b that protrudes inward and engages with the door end frame 3c of the outer shoji 3a, and the left vertical resin frame 62 is fitted into the room side of the left shoji engagement part 60b and is provided so as to cover the part of the left vertical metal frame 60 that is on the room side of the left shoji engagement part 60b from the inner periphery. Fig. 2 shows an example in which the left vertical resin frame 62 is made up of multiple members, but it may be made up of a single member.

[0017] The right-side vertical metal frame 61 has a right shoji engagement portion 61b that protrudes inward and engages with the door end frame 3c of the inner shoji 3b, and the right-side vertical resin frame 63 is fitted into the interior side of the right shoji engagement portion 61b and is arranged to cover the portion of the right-side vertical metal frame 61 that is inside the room more than the right shoji engagement portion 61b from the inner side.

[0018] The new lower frame 5 has a lower metal frame 50 made of metal and a lower resin frame 51 made of synthetic resin. The lower metal frame 50 has two lower rails 50a that are erected upward and guide the outer and inner screens 3a and 3b. The lower resin frame 51 has an outer lower resin frame 51a that is fitted to the outer lower rail 50a that guides the outer screen 3a and the indoor side to cover the space between the two lower rails 50a, and an indoor lower resin frame 51b that is fitted to the indoor side of the indoor lower rail 50a that guides the indoor screen 3b and covers the part of the lower metal frame 50 that is closer to the indoor side than the indoor lower rail 50a from the inner periphery side.

[0019] As shown in Fig. 3, the lower metal frame 50 has a lower exterior metal frame 50b made of an aluminum extrusion material arranged on the exterior side, and a lower interior metal frame 50c made of an aluminum extrusion material arranged on the interior side. The lower exterior metal frame 50b and the lower interior metal frame 50c are connected with a synthetic resin insulation material 50d interposed therebetween. More specifically, the interior end of the lower exterior metal frame 50b is provided with an exterior insulation material storage section 50e that is U-shaped and opens toward the interior side, and the interior end of the lower interior metal frame 50c is provided with an interior insulation material storage section 50f that is U-shaped and opens toward the exterior side.

[0020] The exterior insulation material storage section 50e and the interior insulation material storage section 50f face each other with a gap in the projection direction, and the insulation material 50d is molded so as to be accommodated and fixed across the recesses of the exterior insulation material storage section 50e and the interior insulation material storage section 50f, respectively. The lower metal frame 50 is placed on the existing lower frame 81 by the attachment 52 attached to the exterior end of the lower exterior metal frame 50b, and the newly installed lower fin section 50g provided at the interior end of the lower interior metal frame 50c is fixed to the main body 9 by the screw 7 entering from the inner periphery side.

[0021] With the new lower frame 5 attached on the existing lower frame 81, the connecting portion 50h that connects the lower exterior metal frame 50b and the lower interior metal frame 50c with the insulating material 50d interposed therebetween is close to or in contact in the vertical direction with the inner slope of the opening formed by the existing frame 8, more specifically, with the upper surface of the lower existing fin portion 81a of the existing lower frame 81. The upper surface of the lower existing fin portion 81a is a surface that is located on approximately the same plane as the lower end of the lower new fin portion 50g that is placed on the interior fixture 10 of the lower interior metal frame 50c.

[0022] With the new lower frame 5 attached on the existing lower frame 81, there is an opposing portion X between the existing lower frame 81 and the lower metal frame 50, where the lower existing fin portion 81a and the connecting portion 50h face each other in the vertical direction. The space between the existing lower frame 81 and the new lower frame 5 is partitioned into an outdoor space S1 on the outdoor side of the opposing portion X and an indoor space S2 on the indoor side of the opposing portion X, so that air circulation is suppressed by the opposing portion X. Here, in the opposing portion X, the vertical distance W between the lower existing fin portion 81a and the connecting portion 50h is desirably 2 mm or less, which is the slit width when spaces are connected to each other, which is defined in the JIS standard as being equivalent to a completely sealed space.

[0023] According to the remodeling fitting 1 of this embodiment, the new lower frame 5 of the new frame 2 has excellent thermal insulation because the insulating material 50d is interposed between the lower exterior metal frame 50b made of aluminum and the lower interior metal frame 50c made of aluminum. And the outer screen 3a and the inner screen 3b that can close the opening 2a formed by this new frame 2 have a frame 31 made of synthetic resin, so they can have even higher thermal insulation. Therefore, they can have higher thermal insulation than fittings that have screens with metal frames. Also, since the new frame 2 has a metal frame made of aluminum, it has high strength and can be used as a remodeling fitting that can be installed in a larger opening.

[0024] Furthermore, between the existing lower frame 81 and the lower metal frame 50, at the opposing portion X where the connecting portion 50h where the lower exterior metal frame 50b and the lower interior metal frame 50c are connected by the insulating material 50d and the lower existing fin portion 81a of the existing lower frame 81 face each other in the vertical direction, air flow is restricted between the outdoor space S1 on the outdoor side of the opposing portion X and the indoor space S2 on the indoor side of the opposing portion X, so air does not flow easily between the indoor side and the outdoor side of the opposing portion X. For this reason, heat conduction between the indoor side and the outdoor side is unlikely to occur, making it possible to provide higher insulation.

[0025] In addition, the gap between the existing lower frame 81 and the lower metal frame 50 at the opposing portion X is 2 mm or less, which is regarded as a sealed cavity according to the JIS, so that it is possible to more reliably provide high thermal insulation.

[0026] When installing the renovated fixture 1 on an existing frame 8 of a so-called semi-external type that protrudes to the outside of the room, as in the above embodiment, the lower newly installed fin portion 50g of the newly installed lower frame 5 is located on the main body 9, so that the newly installed lower frame 5 can be fixed to the main body 9 by screws 7 entering from the inner side.

[0027] However, in the case of a so-called internally mounted type in which the existing frame 8 is housed almost inside the building relative to the exterior wall as shown in Figure 4, the lower newly installed fin portion 50g of the newly installed lower frame 5 is located inside the building relative to the main body 9. Therefore, in order to fix it to the main body 9 with screws, the screws must be inserted into the part of the lower interior metal frame 50c that is vertically opposite the lower frame 31b of the inner screen 3b, which may result in water leakage.

[0028] For this reason, in the case of the internal mounting type, the newly installed sill 5 is fixed to the structure 9 via an attachment 11 made of a flat metal plate such as aluminum. More specifically, the attachment 11 is disposed so as to extend from the insulation material 50d to the indoor side, and the attachment 11 is fixed to the structure 9 with the screws 7 that enter from the inner periphery side.

[0029] The attachment 11 is arranged to extend to below the lower new fin portion 50g of the new lower frame 5 to be installed, and the lower new fin portion 50g placed on the attachment 11 is fixed to a portion of the attachment 11 extending toward the inside of the room beyond the main body 9 by a screw 13 that enters from the inner side.

[0030] In this way, when the new lower frame 11 is attached using the attachment 11, the portion where the connecting portion 50h and the upper surface of the attachment 11 face each other in the vertical direction becomes the facing portion X, and air flow between the outdoor space S1 on the outdoor side of the facing portion X and the indoor space S2 on the indoor side of the facing portion X is suppressed.

[0031] In the above embodiment, an example was described in which an opposing portion X is provided between the connecting portion 50h of the renovated fixture 1 and the existing lower frame 81 so as to suppress the flow of air between the outdoor space S1 and the indoor space S2. However, this is not limited to this, and an opposing portion may be provided between the connecting portion of the newly installed upper frame and newly installed vertical frame and the existing frame so as to suppress the flow of air between the indoor side and the outdoor side.

[0032] The above-mentioned embodiment is for the purpose of facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and it goes without saying that the present invention includes equivalents thereof. The present embodiment includes at least the following inventions.

[0033] Mode 1: A renovation fixture that is attached to the inner periphery of an existing frame body, characterized in that it comprises a newly constructed frame having a metal exterior frame placed on the outside of the room, a metal interior frame placed on the inside of the room, and insulation interposed between the exterior frame and the interior frame, and a shoji screen having a synthetic resin frame and placed on the inner periphery of the newly constructed frame.

[0034] According to the remodeled fitting of the first aspect, the new frame has excellent insulation because an insulating material is interposed between the metal exterior frame and the metal interior frame, and the shoji screen placed on the inner periphery of the new frame has a frame made of synthetic resin, so it can have even higher insulation. Therefore, it can have higher insulation than a fitting that has a shoji screen with a metal frame. In addition, since the new frame is made of metal, it has high strength and can be used as a fitting for a large opening window.

[0035] Aspect 2: A renovated fixture as described in Aspect 1, characterized in that between the existing frame body and the newly constructed frame there is a connecting portion where the exterior frame and the interior frame are connected by the insulation material, and an opposing portion where the existing frame body faces each other, thereby suppressing air flow between the space on the outside of the opposing portion and the space on the inside of the interior of the opposing portion.

[0036] According to the remodeling fixture of the second aspect, between the existing frame and the new frame, the connection part where the exterior frame and the interior frame are connected by the heat insulating material and the facing part where the existing frame faces are restricted in air circulation between the space outside the facing part and the space inside the room from the facing part, so air circulation is difficult between the indoor side and the outdoor side of the adjacent parts. Therefore, heat conduction between the indoor side and the outdoor side is difficult to occur, so it is possible to provide higher insulation.

[0037] Aspect 3: The renovation fixture described in Aspect 2, characterized in that the distance between the connecting portion and the existing frame body at the opposing portion is 2 mm or less.

[0038] According to the renovated building fixture of embodiment 3, the distance between the connecting part at the opposing section and the existing frame is 2 mm or less, which is regarded as a sealed cavity according to JIS, so that it is possible to more reliably provide high insulation. [Explanation of symbols]

[0039] 1 Renovated fittings, 2 New frame, 2a Opening, 3a Outside screen, 3b Inner Shoji, 5 New Lower Frame, 8 Existing Frame (Existing Frame Body), 31 Frame, 50b Lower exterior metal frame, 50c Lower interior metal frame, 50d insulation, 50h joints, W: Distance between connecting part and existing frame, X: Opposite part, S1 outdoor space, S2 indoor space,

Claims

1. A renovation fixture that is attached to the inner periphery of an existing frame body, A metal exterior frame disposed on the exterior side of the room; A metal interior frame arranged on the interior side of the room; A heat insulating material interposed between the exterior frame and the interior frame; A new quota with the following characteristics: A shoji screen having a frame made of synthetic resin and arranged on the inner periphery of the newly installed frame; A renovation fitting characterized by having the following features.

2. The retrofit fitting according to claim 1, Between the existing frame body and the new frame, there is a connection portion where the exterior frame and the interior frame are connected by the thermal insulation material, and an opposing portion where the existing frame body faces, This is a renovation fixture characterized by restricting air flow between the space on the outside of the opposing portion and the space on the inside of the opposing portion.

3. The retrofit fitting according to claim 2, A renovation fixture characterized in that the distance between the connecting portion and the existing frame body at the opposing portion is 2 mm or less.

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