JP2024015714A - Sash repairing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sash repairing method capable of easily replacing an existing sash fixed to a skeleton opening by an adhesive with a newly installed sash.

SOLUTION: The method for repairing a sash having an existing frame fixed to an opening inner peripheral surface of a skeleton opening comprises the steps of: removing an interior material provided on an indoor side of the existing frame; inserting a cutting tool from the indoor side into a gap between the existing frame and the opening inner peripheral surface to cut an adhesive, and removing the existing frame from the skeleton opening; providing a new outdoor seal material 65 at an outdoor side end of the opening inner peripheral surface; disposing a window frame 2B which is a newly installed frame in the skeleton opening, engaging a screw 100 with the skeleton opening from an inner peripheral side of the newly installed frame, and fixing the window frame 2B to the skeleton opening in contact with the outdoor seal member 65; providing an indoor seal material 66 for cutting off water between an indoor side end edge of the window frame 2B and the opening inner peripheral surface from each other; and constructing the interior material on the indoor side of the window frame 2B.

SELECTED DRAWING: Figure 10

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a method for repairing a sash by removing an existing sash attached to an opening in a frame and attaching a new sash.

Patent Document 1 discloses a wall unit using a panel construction method in which a sash is attached to a frame opening frame with screws in a factory to manufacture a wall unit, and the wall unit is transported to a construction site and attached to a building frame.

JP 2019-65503 Publication

A considerable number of screws are required to ensure sufficient fixing strength between the opening frame of the building frame and the frame of the sash, and work efficiency during screw fixation is also reduced. In addition, when fixing the frame to the building frame opening frame with screws, it is necessary to separately provide spacers, packing materials, waterproof sheets, etc. to create an airtight/waterproof structure between the building body opening frame and the frame, and the number of parts increases. There are a lot of problems, and work efficiency also decreases.
For this reason, the present applicant has fixed the frame body to the opening frame of the building frame using adhesive that extends around four consecutive times, thereby fixing the frame body and creating an airtight/waterproof structure without using screws or packing materials. We are developing a mounting structure that is compatible with both.
By the way, when a sash that is attached to an opening in a building frame is used for a long period of time, it is required to be repaired by replacing it with a new sash. For this reason, even sashes whose frames are fixed using adhesives are required to be replaced with new sashes.

An object of the present invention is to provide a sash repair method that allows an existing sash fixed to an opening in a building frame with an adhesive to be easily replaced with a newly installed sash.

The present invention is a method for repairing a sash having an existing frame fixed to the inner circumferential surface of a frame opening with an adhesive, the method comprising: removing an interior material provided on the indoor side of the existing frame; , a step of inserting a cutting tool from the indoor side into the gap between the existing frame and the inner peripheral surface of the opening to cut the adhesive and removing the existing frame from the frame opening; a step of providing a new outdoor sealing material at the end; and arranging a new frame in the opening of the body, and screwing a screw into the body opening from the inner peripheral side of the new frame to attach the new frame to the outdoor seal. a step of fixing it to the frame opening in a state in which it is in contact with a material; a step of providing an indoor sealing material that stops water between the indoor side edge of the new frame and the inner circumferential surface of the opening; The present invention is characterized by comprising a step of constructing an interior material on the indoor side of the frame.

The present invention is a method for repairing a sash having an existing frame fixed to the inner circumferential surface of a frame opening with an adhesive, the method comprising: removing interior material provided on the indoor side of the existing frame; , a step of inserting a cutting tool from the indoor side into the gap between the existing frame and the inner circumferential surface of the opening to cut the adhesive and removing the existing frame from the frame opening; and inserting a new frame into the frame opening. a step of fixing the new frame to the frame opening by applying adhesive four times in succession between the indoor side edge of the new frame and the inner peripheral surface of the opening; The method is characterized by comprising a step of constructing an interior material on the indoor side.

According to the present invention, it is possible to provide a sash repair method in which an existing sash fixed to a frame opening with an adhesive can be easily replaced with a newly installed sash.

It is an interior view of a wall unit including an existing sash. FIG. 3 is a vertical cross-sectional view of the wall unit. FIG. 3 is a cross-sectional view of the wall unit. It is a longitudinal cross-sectional view of the upper frame and upper material part of the said wall surface unit. FIG. 3 is a cross-sectional view of a vertical frame and a vertical member portion of the wall unit. It is a figure explaining the process of removing interior material and the process of cutting adhesive in a sash repair method. It is a figure explaining the process of removing an existing frame from a frame opening in a sash repair method. It is a figure explaining the process of providing a new outdoor sealing material in the sash repair method. It is a figure explaining the process of fixing the newly installed frame to the frame opening in the sash repair method. It is a figure explaining the process of providing a new indoor sealing material in the sash repair method. FIG. 2 is a vertical cross-sectional view showing a newly installed sash after the renovation work has been completed by installing new interior materials in the sash renovation method. FIG. 2 is a cross-sectional view showing a newly installed sash after the renovation work has been completed by installing a new interior material in the sash renovation method.

Embodiments of the present invention will be described below based on the drawings. FIG. 1 is an interior view of the wall unit 10 as seen from the indoor side, and FIGS. 2 and 3 are a vertical cross-sectional view and a cross-sectional view of the wall unit 10. The wall unit 10 illustrated here is handled as a single structure when attached to a building, and includes a sash 1 and a frame opening frame 5, which are fittings. In the following description, the left-right direction of the wall unit 10 is the X-axis direction, the up-down direction of the wall unit 10 is the Y-axis direction, and the expected direction (indoor/outdoor direction) of the wall unit 10 is the Z-axis direction. The X, Y, and Z axis directions are orthogonal to each other.

As shown in FIG. 1, the frame opening frame 5 includes a lintel 51 as an upper material, a window sill 52 as a lower material, and left and right vertical members 53 and 54. This frame 5 forms a frame opening to which the sash 1 is fixed.
The sash 1 is an inward opening window, and is an existing sash 1 including a window frame 2, which is an existing frame, and an existing shoji 3 arranged in the window frame 2 so as to be openable and closable by a hinge 26. The window frame 2 is constructed by framing an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24 around the four sides. The shoji 3 includes an upper stile 31, a lower stile 32, left and right vertical stile 33, 34, and a panel 35 surrounded by these. Note that in FIGS. 2 to 6, in order to make the drawings easier to read, hatching indicating the cross section of the main structural members of the window frame 2 and the shoji 3 is omitted.

The upper frame 21, lower frame 22, and left and right vertical frames 23 and 24 of the window frame 2 are formed of frame materials having the same cross-sectional shape, as shown in FIGS. 2 and 3. These frame members are made of extruded synthetic resin members, and have a cross-sectional shape that corresponds to the type of window that opens inward. Furthermore, a recess is formed on the outer circumferential surface of each frame member, that is, on the prospective surface facing the frame opening frame 5.
Brackets 40, which are positioning parts, are provided on the vertical frames 23 and 24. The bracket 40 is a metal plate material, and as shown in FIG. 5, the outdoor side is bent along the projected surfaces of the vertical frames 23 and 24, and is screwed to the vertical frames 23 and 24 with screws 48. The indoor side is bent outward, abuts against the indoor surfaces of the vertical members 53 and 54, and is fastened with screws 49. By means of this bracket 40, the vertical frames 23 and 24, that is, the window frame 2, are positioned in the perspective direction with respect to the vertical members 53 and 54, that is, the frame opening frame 5. In this embodiment, the outdoor facing surface of the window frame 2 and the outdoor surface of the frame opening frame 5 are positioned so as to be substantially flush with each other.
In addition, in this embodiment, the bracket 40 is arranged at an intermediate position in the vertical direction of the vertical frames 23 and 24, but it may be arranged at multiple locations depending on the height dimension of the vertical frames 23 and 24. . Further, in this embodiment, the upper frame 21 is not provided with a bracket which is a positioning component, but for example, when the longitudinal dimension of the upper frame 21 is large, that is, when the left and right width dimension of the window frame 2 is large, For example, a bracket may be provided at an intermediate position in the left-right direction of the upper frame 21.
Further, as shown in FIG. 2, a spacer 27 is attached to a recessed portion of the outer peripheral surface of the lower frame 22. Thereby, the load applied to the lower frame 22 is supported by the window sill 52 via the lower frame 22 and the spacer 27.

The shoji 3 is constructed by attaching an upper stile 31, a lower stile 32, and left and right vertical stile 33, 34 to the four circumferences of a rectangular face material 35. The upper stile 31, the lower stile 32, and the left and right vertical stile 33, 34 are extruded synthetic resin members having the same cross-sectional shape. The face material 35 is glass.
The shoji 3 is an interior structure in which a hinge 26 is provided between a vertical stile 34 and a vertical frame 24 located on the left side when viewed from the inside of the room, and the shoji 3 opens toward the inside of the room around the hinge axis along the top and bottom. It is a casement window. A vertical stile 33 located on the right side when viewed from the indoor side is provided with a handle 36 on the facing surface facing into the room.

As shown in FIG. 1, the frame opening frame 5 is configured in a frame shape, including a lintel 51, a window sill 52, and left and right vertical members 53 and 54. The upper end sides of the vertical members 53, 54 extend above the lintel 51, and the lower end sides of the vertical members 53, 54 extend below the window sill 52, between the upper ends and the lower end of the vertical members 53, 54. Cross members 55 and 56 are respectively attached between them. The lintel 51, the window sill 52, the left and right vertical members 53, 54, and the horizontal members 55, 56 are made of wood, for example.
As shown in FIG. 2, a heat insulating material 57 is disposed between the cross member 55 on the upper end side and the lintel 51, and between the window sill 52 and the cross member 56 on the lower end side, respectively. Further, a surface material 58 is attached to the outdoor surface of the frame opening frame 5.
Note that depending on the relationship between the height of the wall unit 10 and the height of the sash 1, the frame opening frame 5 may be configured without providing one or both of the cross members 55, 56.

The lintel 51, the vertical members 53, 54, and the cross members 55, 56 are formed to have a rectangular cross section. On the other hand, the window sill 52 has a shape in which a stepped portion 521 is formed on the outdoor side. That is, the window sill 52 has an upper surface on which the lower frame 22 is placed, a vertical surface provided downward from the outdoor end of the upper surface, and a horizontal surface provided from the lower end of the vertical surface toward the outdoor side. have. As a result, the window sill 52 is formed with a stepped portion 521 divided by a vertical plane and a horizontal plane. A waterproof sheet 59 is attached from the top surface of the window sill 52 to a surface material 58 provided on the outdoor side of the window sill 52 via the vertical and horizontal surfaces.

The upper frame 21 and vertical frames 23 and 24 of the window frame 2 arranged on the inner peripheral side of the frame opening frame 5 are bonded to the lintel 51 and the vertical members using an adhesive 61 on the indoor side and an adhesive 62 on the outdoor side. It is fixed at 53 and 54. Further, the lower frame 22 is fixed to the window sill 52 with an adhesive 61 on the indoor side.
Note that in order to smoothly arrange the window frame 2 within the opening of the frame frame 5, the opening size of the frame frame 5 is made slightly larger than the size of the window frame 2. Therefore, when the lower frame 22 is placed on the upper surface of the window sill 52, there is a slight gap between the upper frame 21 and the lintel 51 and between the vertical frames 23, 24 and the vertical members 53, 54. occurs. Therefore, as shown in FIGS. 4 and 5, some of the adhesives 61 and 62 are also filled in the gap.

The adhesive 61 on the indoor side is provided across the indoor surfaces of the upper frame 21, lower frame 22, and vertical frames 23, 24, and the inner peripheral surfaces of the lintel 51, window sill 52, and vertical members 53, 54. It is being This adhesive 61 is continuously provided four times around the entire length of the upper frame 21, the lower frame 22, and the vertical frames 23, 24. In addition, since the adhesive 61 is applied across two surfaces which are arranged to intersect with the indoor surface of the window frame 2 and the opening inner peripheral surface of the frame opening frame 5, the cross-sectional shape is approximately triangular. ing. Therefore, the adhesive 61 is continuously applied across the bracket 40 even in the portion where the thin plate-shaped bracket 40 is arranged.
As described above, the adhesive 61 on the indoor side is fixed by continuously closing the gap between the frame opening frame 5 and the window frame 2 on the indoor side four times, ensuring airtightness and watertightness, and The window frame 2 can be firmly fixed.

The adhesive 62 on the outdoor side is provided across the indoor surfaces of the upper frame 21 and vertical frames 23 and 24 and the outdoor surfaces of the lintel 51 and vertical members 53 and 54. There is no provision between. That is, the adhesive 61 is provided over the entire length of the upper frame 21 and the vertical frames 23 and 24, and is fixed by continuously closing the gaps on three sides of the four circumferences excluding the lower frame 22, The airtightness and watertightness of these gap portions are further improved, and the fixing strength of the window frame 2 is also improved.

The adhesives 61 and 62 can be used as long as they can fix the window frame 2 to the frame opening frame 5. For example, various types of adhesives such as hot melt type, two-component mixture type, and moisture effect type can be used. be. The adhesive 61 and the adhesive 62 may be the same type or different types. Furthermore, different types of adhesive 61 may be used depending on the application location, and similarly, different types of adhesive 62 may be used depending on the application location.

As shown in FIGS. 2 and 3, an upper cover material 81, a draining material 82, and vertical cover materials 83 and 84 are attached to the outdoor surface of the frame opening frame 5.

As shown in FIG. 4, the upper cover material 81 includes a fixed piece 811 fixed to the surface material 58, a parting piece 812 extending from the fixed piece 811 to the outdoor side, and a parting piece 812 extending downward from the base end side of the parting piece 812. The cover piece 813 is configured to include a covering piece 813 extending from the top.
Protruding pieces 8111 and 8112 that protrude toward the indoor side are formed at the upper end edge of the fixing piece 811 and at approximately the middle position in the vertical direction, and the screws 819 that fix the upper cover material 81 are attached to the protruding pieces 8111 and 8112. placed between.
The parting piece 812 includes a horizontal surface part 8121 continuous from the fixed piece 811, a slope part 8122 continuously provided from the horizontal surface part 8121 and extending diagonally downward, and a vertical surface part 8122 extending downward from the outdoor end of the slope part 8122. and a surface portion 8123. Further, a screw hole 814 is formed on the lower surface of the parting piece 812. A screw (not shown) that connects the vertical cover members 83, 84 and the upper cover member 81 is screwed into the screw hole 814.
The covering piece 813 has a substantially L-shaped cross section with a lower end protruding toward the indoor side.
The fixing piece 811 and the covering piece 813 of the upper cover material 81 are disposed across the outdoor surface of the frame opening frame 5 and the outdoor surface of the upper frame 21, and are located on the outdoor side of the adhesive 62. Therefore, the upper cover material 81 is used as a cover material to cover the adhesive 62 that fixes the upper frame 21 to the frame opening frame 5 so that it is not exposed to the outdoor side. In addition, since the parting piece 812 is disposed to face the end facing surface of the exterior material 91, which will be described later, the upper cover material 81 is also used as a parting material for cutting off the exterior material 91.

As shown in FIG. 2, the draining material 82 is placed on the stepped portion 521 of the window sill 52 with a waterproof sheet 59 interposed therebetween. This draining material 82 includes an inclined piece part 821 extending diagonally downward, a tip part 822 extending downward from the outdoor end of the inclined piece part 821, and a screw 829 disposed along the surface material 58. and a fixing piece part 823 fixed to the window sill 52.
Two screw holes are formed on the lower surface of the inclined piece portion 821 of the draining material 82. Screws (not shown) connecting the vertical cover members 83, 84 and the draining member 82 are screwed into the screw holes on the outdoor side. Screws (not shown) are screwed into the screw holes on the indoor side to fix lid members that close the openings at both left and right ends of the hollow portion of the draining material 82.
Further, since a part of the lower frame 22 is arranged above the step 521 of the window sill 52, the part of the draining material 82 arranged on the step 521 overlaps the lower frame 22 in plan view. It is located. Further, as shown in FIGS. 2 and 5, the outdoor end of the inclined piece 821 protrudes toward the outdoor side beyond the vertical cover members 83 and 84, and an end cap 85 is attached to close the edge of this projecting part. has been done. Since the drainage material 82 is disposed to face the expected end surface of the exterior material 91, it is also used as a parting material for cutting off the exterior material 91.

Since the vertical cover members 83 and 84 have the same cross-sectional shape with left-right symmetry, the structure will be explained using the vertical cover member 84 shown in FIG. 5.
The vertical cover material 84 includes a fixed piece 841 fixed to the surface material 58, a parting piece 842 extending from the fixed piece 841 to the outdoor side, and a parting piece 842 extending from the base end side of the parting piece 842 to the inner peripheral side. A holding piece 843 is provided.
Projecting pieces 8411 and 8412 that protrude toward the indoor side are formed on the outer peripheral edge of the fixing piece 841 and at approximately the middle position in the left-right direction. , 8412.
The parting piece 842 is formed into a substantially L-shaped cross section with the outdoor end protruding toward the outer circumferential side.
The holding piece 843 has a holding groove 8431 that holds the water stop member 86 that comes into contact with the outdoor surfaces of the vertical frames 23 and 24. The water stop member 86 is made of AT (air tight) material.
The fixing pieces 841 of the vertical cover members 83 and 84 are disposed across the outdoor surface of the frame opening frame 5 and the outdoor surfaces of the vertical frames 23 and 24, and are located on the outdoor side of the adhesive 62. Therefore, the vertical cover members 83 and 84 function as cover members that cover the adhesive 62 that fixes the vertical frames 23 and 24 to the frame opening frame 5 so that they are not exposed to the outside of the room. Further, since the parting piece 842 is disposed to face the expected end surface of the exterior material 91, which will be described later, the vertical cover materials 83 and 84 are also used as parting materials for cutting off the exterior material 91.

As shown in FIGS. 4 and 5, waterproof tapes 71 and 72 and a waterproof sheet 73 are attached to the outdoor surface of the frame opening frame 5, as shown in FIGS. 4 and 5.
The waterproof tape 71 has one side facing the surface material 58 as an adhesive surface, and is pasted from the surface material 58 to the surface of the adhesive 62. This prevents water from entering between the surface material 58 and the adhesive 62.
The waterproof tape 72 has adhesive surfaces on both sides, and is pasted from the waterproof tape 71 to the surfaces of the upper cover material 81 and the vertical cover materials 83 and 84. The waterproof sheet 73 is pasted from the surface material 58 to the surface of the waterproof tape 72. The waterproof tape 72 and the waterproof sheet 73 prevent water from entering between the top cover material 81, the vertical cover materials 83 and 84, and the surface material 58.

As shown in FIGS. 2 and 3, an exterior material 91 is attached to the outdoor side of the main body opening frame 5 via a vertical furring 92 and a horizontal furring 93. The exterior material 91 is attached except for the opening section defined by the upper cover material 81, the drainage material 82, and the vertical cover materials 83 and 84. A backup material 75 and a sealing material 76 are arranged between the exterior material 91 and the upper cover material 81 and vertical cover materials 83 and 84. Further, a backup material 75 and a sealing material 76 are also arranged between the draining material 82 and the lower surface of the lower frame 22.
An inner wall material 94 is attached to the indoor side of the frame opening frame 5 except for the opening portion where the sash 1 is arranged. Furthermore, a frame 95 is attached to the inner peripheral surface of the opening of the frame opening frame 5 on all four sides to see off the inner wall material 94. That is, an inner wall material 94 and a frame 95 are attached to the indoor side of the frame opening frame 5 as interior materials.

[Assembling process of wall unit]
Next, the process of assembling the wall unit 10 will be explained.
Sash 1 is assembled at the sash 1 manufacturing factory. This assembly method is the same as that of the general sash 1, so the explanation will be omitted.
In the assembly factory for the frame opening frame 5, the lintel 51, the window sill 52, the left and right vertical members 53, 54, and the horizontal members 55, 56 are assembled, the surface material 58 is attached, and the heat insulating material 57 is placed, and the frame opening frame is assembled. Assemble 5.

Next, in an assembly factory for the wall unit 10, the sash 1 is attached to the frame opening frame 5, and the wall unit 10 is assembled. Note that the wall unit 10 may be assembled at the same factory as the sash 1 manufacturing factory and the frame opening frame 5 assembly factory, or at a different factory.
To configure the wall unit 10 by attaching the window frame 2 of the sash 1 to the frame opening frame 5, fix the bracket 40 to the window frame 2 with screws 48, and fix the bracket 40 to the frame opening frame 5 with screws 49. to position the window frame 2. Then, the indoor side of the window frame 2 is fixed to the frame opening frame 5 with an adhesive 61, and the outdoor side of the window frame 2 is further fixed to the frame opening frame 5 with an adhesive 62. Further, a waterproof sheet 59 is pasted from the window sill 52 portion to the surface material 58.
Note that the work of discharging the adhesives 61 and 62 can be performed manually by a worker, but since the wall unit 10 is assembled in a factory, it can be automated using a robot or the like.

[On-site construction work for wall units]
Through the above assembly work, the wall unit 10 is completed. The method for transporting this wall unit 10 to a construction site and attaching it to a building such as a house can be carried out in the same manner as in Patent Document 1, so the explanation will be omitted.
After the wall unit 10 is attached to a house or the like, a waterproof tape 71 is attached to the surfaces of the surface material 58 and adhesive 62, and then the upper cover material 81, draining material 82, and vertical cover materials 83 and 84 are attached. At this time, the upper cover material 81, the draining material 82, and the vertical cover materials 83 and 84 may be attached to the frame opening frame 5 in a four-way assembled state, or each member may be attached to the frame opening frame 5 individually.
Note that before installing the wall unit 10 in a house or the like, for example, when assembling the wall unit 10 at a factory, or after transporting the wall unit 10 to a construction site and before installing it in the house, the waterproof tape 71 and the upper cover material 81 are applied. , a draining material 82 and vertical covering materials 83 and 84 may be attached to the wall unit 10.
Furthermore, after pasting the waterproof tape 72 and the waterproof sheet 73 on the surfaces of the upper cover material 81 and the vertical cover materials 83 and 84, the vertical furring 92 and the horizontal furring 93 are attached to install the exterior material 91. Thereafter, a backup material 75 and a sealing material 76 are arranged to seal between the exterior material 91, the upper cover material 81, the vertical cover materials 83 and 84, and between the lower frame 22 and the draining material. Further, an inner wall material 94 and a frame 95 are attached to the indoor side of the wall unit 10 to finish.

[How to repair the sash]
Next, a method for repairing the sash 1 will be described with reference to FIGS. 6 to 12. 6 to 10, (A) is a longitudinal cross-sectional view of the sash 1 and the frame opening frame 5, and (B) is a cross-sectional view of the main parts.
The method for repairing the sash 1 is to remove the existing sash 1 from the frame opening frame 5 of the wall unit 10 attached to the building, that is, from the frame opening, and install a new sash 1B.
First, as shown in FIG. 6, the interior material, that is, the inner wall material 94 and the frame 95 are removed, and a cutting tool 200 such as a cutter is inserted into the gap between the frame opening frame 5 and the window frame 2. 62, the backup material 75 and the sealing material 76 are cut. Additionally, the screws 49 that fix the bracket 40 are also removed. On the other hand, the upper cover material 81, draining material 82, and vertical cover materials 83 and 84, which are parting materials, are maintained attached to the frame opening frame 5 without being cut.

Next, as shown in FIG. 7, the existing sash 1 is removed from the frame opening frame 5 toward the indoor side. Then, the backup material 75 and the sealing material 76 are removed from the surface of the draining material 82. Further, if adhesive 61 remains on the inner peripheral surface of the opening of frame 5, that adhesive 61 is also removed. Further, if adhesive 62 remains on the surfaces of the upper cover material 81 and the vertical cover materials 83 and 84 exposed to the indoor side, the adhesive 62 is removed. Note that the adhesive 62 between the upper cover material 81, the vertical cover materials 83 and 84, and the surface material 58 may be left as is.

Next, as shown in FIG. 8, pre-casting is applied to the parts that span the upper cover material 81, the vertical cover materials 83 and 84, the surface material 58 of the lintel 51, and the surface material 58 of the vertical materials 53 and 54. Apply outdoor sealing material 65. The outdoor sealing material 65 is for ensuring watertightness and is adhesive.
Next, as shown in FIG. 9, the worker places the newly installed sash 1B on the inner periphery of the opening of the building frame opening frame 5, inserts the screws 100 from the inner periphery of the window frame 2B, and removes the window frame 2B and reinforcing material. The screw 100 is screwed into the frame opening frame 5 through the screw 28. Thereby, the window frame 2B is fixed to the frame opening frame 5. At this time, the outdoor side edges of the upper frame 21B and the vertical frames 23B and 24B of the window frame 2B are pressed against the outdoor sealing material 65 to bring them into close contact.

After fixing the window frame 2B to the frame opening frame 5 with the screws 100, as shown in FIG. Apply 66. This ensures watertightness between the new window frame 2B and the opening of the frame.
Additionally, a new backup material 75B and sealing material 76B are provided between the draining material 82 and the lower frame 22B. This ensures watertightness between the draining material 82 and the lower frame 22B.
Thereafter, as shown in FIGS. 11 and 12, new interior materials, ie, inner wall materials 94B and frame 95B, are constructed. With the above, the renovation to the newly installed sash 1B is completed.

The newly installed sash 1B is composed of a newly installed window frame 2B and a newly installed shoji 3B.
As shown in FIGS. 11 and 12, the newly installed window frame 2B includes an upper frame 21B, a lower frame 22B, and vertical frames 23B and 24B. 28 are arranged. Insertion holes into which the screws 100 are inserted are formed in advance on the inner circumferential surface of the window frame 2B and on the opposing surface of the reinforcing material 28 that faces the inner circumferential surface.
Moreover, the newly installed shoji 3B includes an upper stile 31B, a lower stile 32B, vertical stile 33B, 34B, and a panel 35B, and has the same configuration as the existing shoji 3.

[Effects of embodiment]
According to this embodiment, although it is necessary to remove the interior wall material 94 and the frame 95, which are interior materials, the exterior material 91, the upper cover material 81, the draining material 82, and the vertical cover materials 83 and 84 are removed or destroyed. You can repair the sash without having to worry about it. Therefore, the existing sash 1 can be renovated into a newly installed sash 1B in a short period of time and at low cost.
Since the removal work of the existing sash 1 and the installation work of the new sash 1B can be performed from the indoor side of the frame opening frame 5, workability and safety during renovation can be improved.
Since the existing window frame 2 is fixed to the frame opening frame 5 with adhesives 61 and 62, it can be easily cut with a cutting tool 200 such as a cutter. In addition, the newly installed window frame 2B can ensure waterproofness and airtightness with the newly installed outdoor sealing material 65 and indoor sealing material 66, and is fixed to the frame opening frame 5 using screws 100, making the window frame 2B strong. It can be fixed to In particular, since the reinforcing material 28 is arranged on the window frame 2B and the head of the screw 100 is locked to this reinforcing material 28, the fixing strength of the screw 100 can be improved, and the strength of the window frame 2B itself can also be improved.
When installing a newly installed sash 1B, the window frame 2B can be positioned in the expected direction by contacting the previously installed outdoor sealing material 65, so there is no need to attach the bracket 40, which is a positioning component, to the window frame 2B, and the bracket 40 This makes it possible to eliminate the need for the interior sealing material 66, and improve work efficiency such as applying the interior sealing material 66, which is installed later.

[Modified example]
The present invention is not limited to the configurations described in the above embodiments, and the present invention includes modifications within the scope that can achieve the object of the present invention.
For example, the newly installed window frame 2B is not limited to being fixed to the building frame opening frame 5 with the screws 100, but may be fixed using an adhesive like the existing window frame 2. That is, at the construction site of the repair work, the window frame 2B may be bonded to the frame opening frame 5 by applying the indoor adhesive 61 instead of applying the retrofitted indoor sealing material 66. If such repair work is performed, adhesive 61 is provided around the indoor side of the window frame 2B in the same way as the existing window frame 2, so that the window frame 2B can be fixed and watertightness can be ensured.
At this time, a pre-applied outdoor sealing material 65 may be provided on the outdoor side of the window frame 2B as in the above embodiment, or an adhesive 62 on the outdoor side may be provided in place of the pre-applied outdoor sealing material 65. Good too.

Further, in the step of removing the interior material provided on the indoor side of the existing window frame 2, only the frame 95 may be removed and the interior wall material 94 may be left. In this case, since it is only necessary to attach the newly installed frame 95B after installing the newly installed window frame 2B, workability during renovation can be improved. Note that the bracket 40 can be removed by cutting or bending the bracket 40 after removing the screws 49, and then pulling out the folded portion located between the vertical members 53, 54 and the inner wall member 94 in the X-axis direction. do it.

The seal between the newly installed lower frame 22B and the draining material 82 is not limited to a wet seal structure using the backup material 75B and the sealing material 76B, and a dry seal structure may be adopted. If a dry sealing structure is adopted, the work of placing the sealing material 76B can be made unnecessary, and the workability at the time of repair can be further improved. Alternatively, a positioning bracket 40 may be provided on the newly installed window frame 2B, and the window frame 2B may be positioned in the viewing direction by the bracket 40.

The existing sash 1 and the new sash 1B are not limited to being made of synthetic resin, but may be made of extruded shapes of metal such as aluminum.
The existing sash 1 and the newly installed sash 1B are not limited to inward-opening windows, and various fittings such as fixed windows, outward-opening windows, and hinged windows can be used. In the case of a FIX window, the frame material that holds the glass is directly fixed to the building frame opening frame 5, so the frame material serves as the frame.
Further, the newly installed sash 1B may have the same window type and material as the existing sash 1, but may also have a different window type and material.

[summary]
The present invention is a method for repairing a sash having an existing frame fixed to the inner circumferential surface of a frame opening with an adhesive, the method comprising: removing interior material provided on the indoor side of the existing frame; , a step of inserting a cutting tool from the indoor side into the gap between the existing frame and the inner peripheral surface of the opening to cut the adhesive and removing the existing frame from the frame opening; a step of providing a new outdoor sealing material at the end; placing a new frame in the opening of the body; and screwing a screw into the body opening from the inner peripheral side of the new frame to attach the new frame to the outdoor seal; a step of fixing it to the frame opening in a state in which it is in contact with a material; a step of providing an indoor sealing material that stops water between the indoor side edge of the new frame and the inner circumferential surface of the opening; The present invention is characterized by comprising a step of constructing an interior material on the indoor side of the frame.
According to the present invention, the sash can be repaired without removing or destroying the exterior material. Further, since the work of fixing screws and the work of driving seals are work that workers normally perform at the construction site, the repair work can be performed easily and reliably.

The present invention is a method for repairing a sash having an existing frame fixed to the inner circumferential surface of a frame opening with an adhesive, the method comprising: removing interior material provided on the indoor side of the existing frame; , a step of inserting a cutting tool from the indoor side into the gap between the existing frame and the inner circumferential surface of the opening to cut the adhesive and removing the existing frame from the frame opening; and inserting a new frame into the frame opening. a step of fixing the new frame to the frame opening by applying adhesive four times in succession between the indoor side edge of the new frame and the inner peripheral surface of the opening; The method is characterized by comprising a step of constructing an interior material on the indoor side.
According to the present invention, the sash can be repaired without removing or destroying the exterior material. Additionally, since the newly installed sash is attached to the building opening using adhesive that runs around the entire perimeter of the building, it is possible to secure the new frame and ensure water-tightness. Therefore, compared to the case where a new frame is fixed with screws and a seal is provided to ensure water-tightness, the number of work steps required during renovation can be reduced.

In the sash repair method of the present invention, a parting material is provided on the outdoor side of the existing frame to cut off the exterior material, and in the step of removing the existing frame from the frame opening, the parting material is not cut. It is preferable to maintain it in a state where it is attached to the frame opening.
Since the parting material is provided on the outdoor side of the existing frame, it is possible to fill the space between the edge of the exterior material and the parting material with a sealant or the like to finish the project while ensuring waterproofness. In addition, when renovating the sash, the parting material is not cut and is kept attached to the opening of the frame, so the sealant filled between the exterior material and the exterior material can be used as is, making the refurbishment work easier. can be improved.

In the sash repair method of the present invention, a parting material is provided on the outdoor side of the existing frame to cut off the exterior material, and in the step of removing the existing frame from the frame opening, the parting material is not cut. In the step of providing the outdoor sealing material, the outdoor sealing material may be provided at a corner where the parting material and the inner peripheral surface of the opening of the building body intersect. preferable.
Since the parting material is provided on the outdoor side of the existing frame, it is possible to fill the space between the edge of the exterior material and the parting material with a sealant or the like to finish the project while ensuring waterproofness. In addition, when renovating the sash, the parting material is not cut and is kept attached to the opening of the frame, so the sealant filled between the exterior material and the exterior material can be used as is, making the refurbishment work easier. can be improved. Furthermore, since the outdoor sealing material is provided at the corner where the parting material intersects with the inward facing inner circumferential surface of the frame opening, water-stopping properties can be improved.

1... Sash, 1B... Sash, 2... Window frame which is an existing frame, 2B... Window frame which is a newly installed frame, 3... Shoji, 3B... Shoji, 5... Frame opening frame which is a frame opening, 10... Wall unit, 21...Top frame, 21B...Top frame, 22...Bottom frame, 22B...Bottom frame, 23...Vertical frame, 23B...Vertical frame, 24...Vertical frame, 24B...Vertical frame, 28...Reinforcement material, 31...Top stile, 31B...upper stile, 32...lower stile, 32B...lower stile, 33...vertical stile, 33B...vertical stile, 34...vertical stile, 34B...vertical stile, 35...face material, 35B...face material, 48...screw, 49 ... screw, 51 ... lintel, 52 ... window sill, 53 ... vertical member, 54 ... vertical member, 58 ... surface material, 61 ... adhesive, 62 ... adhesive, 65 ... outdoor sealing material, 66 ... indoor sealing material, 75... Backup material, 75B... Backup material, 76... Sealing material, 76B... Sealing material, 81... Top cover material, 82... Draining material, 83... Vertical cover material, 84... Vertical cover material, 91... Exterior material, 94... Inner wall material, 94B... Inner wall material, 95... Picture frame, 95B... Picture frame, 100... Screw, 200... Cutting instrument.

Claims (4)

A method for repairing a sash having an existing frame fixed to the inner circumferential surface of an opening in a building frame with an adhesive, the method comprising:
a step of removing interior material provided on the indoor side of the existing frame;
inserting a cutting tool from the indoor side into the gap between the existing frame and the inner peripheral surface of the opening to cut the adhesive and removing the existing frame from the frame opening;
providing a new outdoor sealing material on the outdoor end of the inner peripheral surface of the opening;
A new frame is placed in the frame opening, a screw is screwed into the frame opening from the inner peripheral side of the new frame, and the new frame is placed in the frame opening with the new frame in contact with the outdoor sealing material. A fixing process;
providing an indoor sealing material to stop water between the indoor side edge of the new frame and the inner peripheral surface of the opening;
a step of constructing an interior material on the indoor side of the newly constructed frame;
A method for repairing a sash, comprising: A method for repairing a sash having an existing frame fixed to the inner circumferential surface of an opening in a building frame with an adhesive, the method comprising:
a step of removing interior material provided on the indoor side of the existing frame;
inserting a cutting tool from the indoor side into the gap between the existing frame and the inner peripheral surface of the opening to cut the adhesive and removing the existing frame from the frame opening;
A new frame is placed in the opening of the building frame, and adhesive is applied continuously four times around the interior edge of the new frame and the inner peripheral surface of the opening to fix the new frame to the opening of the building frame. The process of
a step of constructing an interior material on the indoor side of the newly constructed frame;
A method for repairing a sash, comprising: In the sash repair method according to claim 1 or 2,
A parting material is provided on the outdoor side of the existing frame to cut off the exterior material,
A method for repairing a sash, characterized in that in the step of removing the existing frame from the frame opening, the parting material is maintained attached to the frame opening without being cut. In the sash repair method according to claim 1,
A parting material is provided on the outdoor side of the existing frame to cut off the exterior material,
In the step of removing the existing frame from the frame opening, the parting material is maintained attached to the frame opening without being cut;
A method for repairing a sash, wherein in the step of providing the outdoor sealing material, the outdoor sealing material is provided at a corner where the parting material intersects with the inner circumferential surface of the opening of the frame body opening.

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