Window renovation methods

Abstract

To provide a method for reforming windows that allows replacing only sliding doors to existing frames and easily replacing them with new sliding doors with high thermal insulation performance through simple work, and resin window sashes.SOLUTION: In a method for reforming a window to replace sliding doors of a sliding window, an existing outer sliding door and an existing inner sliding door are removed from an existing frame 1, which is installed in an opening and framed on all four sides, and a new outer sliding door 5 and a new inner sliding door 6, which are new sliding doors with higher insulation performance than the outer sliding door and the inner sliding door, are installed on the existing frame 1.SELECTED DRAWING: Figure 2

Description

Technical Field

[0005] , , , , , ,

[0001] The present disclosure relates to a window reform method to and is concerned therewith.

Background Art

[0002] Conventionally, there has been a case where the lower frame of a fitting such as a sliding sash is formed in a stepped shape so that the outdoor end is disposed at a lower position than the indoor end. The lower frame of the outer shutter has a shape in which the lower end of the outdoor member disposed outside the glass extends to a position lower than the lower end of the indoor member disposed inside the glass corresponding to the lower frame of this shape.

[0003] In recent years, as shown in Patent Document 1, there is known a case where the lower frame is formed at the same height from the outdoor side to the indoor side, and the outdoor member and the indoor member of the lower frame of a shutter having high heat insulation performance employing triple glass are formed at the same height. Patent Document 1 describes a method of replacing an existing shutter with a new shutter by attaching a new frame corresponding to the lower frame of the new shutter as an attachment to the lower frame of the existing frame formed in a stepped shape and attaching the new shutter on the new frame.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0006] This disclosure relates to a window renovation method that allows the use of existing frames without structural modifications and enables the replacement of existing frames with new, high-insulation sashes by simply replacing the sashes themselves. To provide. [Means for solving the problem]

[0007] A window renovation method according to one aspect of this disclosure is: A sash in which at least one of the frame and stile, at least a portion of it, is made of aluminum. In a window renovation method for replacing shoji screens, the existing shoji screen is removed from the existing frame that is installed in the opening and frames all four sides, and a new shoji screen having higher thermal insulation performance than the existing shoji screen is attached to the existing frame. The sash is a sliding window, and the newly installed sash, which has a smaller frame width than the existing sash, is attached to the existing frame. ru. [Brief explanation of the drawing]

[0009] [Figure 1] A vertical cross-sectional view showing a sliding window before the replacement of the shoji screen according to the first embodiment of this disclosure. [Figure 2] A vertical cross-sectional view showing a sliding window after the shoji screen has been replaced. [Figure 3] An enlarged view of the main part (lower frame) shown in Figure 2. [Figure 4] A diagram showing the mounting holes for the attachment's fixing part. [Figure 5] A vertical cross-sectional view showing a vertical sliding window before the replacement of the shoji screen according to the second embodiment. [Figure 6] A vertical cross-sectional view showing a vertical sliding window after the shoji screen has been replaced. [Figure 7] A cross-sectional view showing a vertical sliding window after the replacement of the shoji screen according to the second embodiment. [Figure 8]An enlarged view of the main part (lower frame portion) shown in Figure 6. [Figure 9] A vertical cross-sectional view showing an opening window before the replacement of the shoji screen according to the third embodiment. [Figure 10] A vertical cross-sectional view showing the casement window after the shoji screen has been replaced. [Figure 11] An enlarged view of the main part (lower frame portion) shown in Figure 10. [Figure 12] A vertical cross-sectional view showing the back entrance window before the replacement of the shoji screen according to the fourth embodiment. [Figure 13] A vertical cross-sectional view showing the back entrance window after the shoji screen has been replaced. [Modes for carrying out the invention]

[0010] (First Embodiment) The following describes a window renovation method according to one embodiment and sash As an example, a sliding window will be explained based on the drawings. In this window renovation method, the existing frame 1 of the existing sliding window 100 (resin sash) shown in Figure 1 is used as is and not replaced, and only the new sashes (outer sash 2 and inner sash 3) are replaced, as shown in Figure 2. In this embodiment, as shown in Figure 2, an attachment 7 is provided at the lower end of the new outer sash 5 that is installed on the existing frame 1.

[0011] The existing sliding window 100 is installed in an exterior wall opening Wa of the building's exterior wall. The existing sliding window 100 comprises an existing frame 1, an outer sash 2, an inner sash 3, and a screen door 4.

[0012] In the following explanation, the direction connecting the outdoor side and the indoor side will be referred to as the indoor-outdoor direction. Of the visible directions perpendicular to the indoor-outdoor direction, the direction along the horizontal direction will be referred to as the width direction, and the direction along the vertical direction will be referred to as the up-down direction.

[0013] The existing frame body 1 is formed in a rectangular frame shape. The existing frame body 1 has an upper frame 11, a lower frame 12, and a pair of vertical frames 13. In this embodiment, the existing frame body 1 is made of resin, but it may also be composed of metal profiles such as aluminum alloy or an aluminum resin composite (a configuration in which an aluminum member and a resin member are assembled).

[0014] The upper frame 11 and the lower frame 12 extend in the width direction. The vertical frame 13 extends in the vertical direction. Each vertical frame 13 connects the end of the upper frame 11 and the end of the lower frame 12.

[0015] The lower frame 12 has an upper stage portion 121, a pair of inner rail support portions 122, an inner rail 123, a middle stage portion 124, a pair of outer rail support portions 125, an outer rail 126, a lower stage portion 127, and a screen door rail 128.

[0016] The upper stage portion 121 is arranged on the indoor side of the lower frame 12. The upper stage portion 121 is formed in a plate shape. The plate surface of the upper stage portion 121 faces in the vertical direction. The pair of inner rail support portions 122 are provided at the outdoor-side ends of the upper stage portion 121. The inner rail support portions 122 protrude upward from the upper stage portion 121. The inner rail 123 is fitted between the pair of inner rail support portions 122. The inner rail 123 supports the inner shutter 3. <0OO0098> The middle stage portion 124 is arranged on the outdoor side of the upper stage portion 121. The middle stage portion 124 is arranged at a lower height than the upper stage portion 121. The middle stage portion 124 is formed in a plate shape. The plate surface of the middle stage portion 124 faces in the vertical direction. The pair of outer rail support portions 125 are provided at the outdoor-side ends of the middle stage portion 124. The outer rail support portions 125 protrude upward from the middle stage portion 124. The outer rail 126 is fitted between the pair of outer rail support portions 125. The outer rail 126 supports the outer shutter 2.

[0018] The lower section 127 is positioned on the outdoor side of the middle section 124. The lower section 127 is positioned at a lower height than the middle section 124. The screen door rail 128 protrudes upward from the outdoor end of the lower section 127.

[0019] In the lower frame 12, the middle section 124 is positioned at a lower height than the upper section 121, and the lower section 127 is positioned at a lower height than the middle section 124. The outer rail 126 supporting the outer sash 2 is positioned at a lower height than the inner rail 123 supporting the inner sash 3. In this way, the lower frame 12 is formed in a stepped shape.

[0020] The outer sash 2 is positioned on the outdoor side of the inner sash 3. The outer sash 2 and the inner sash 3 are slidably mounted in the width direction on the existing frame 1. When the outer sash 2 and the inner sash 3 are closed, they block the inside of the existing frame 1.

[0021] The outer sliding door 2 has a frame 20 and glass 29. The frame 20 is formed in a four-sided frame shape. The frame 20 has an upper frame 21, a lower frame 22, and a pair of vertical frames 23. In this embodiment, the frame 20 is made of resin, but it may be made of a metal profile such as an aluminum alloy or an aluminum-resin composite. The upper frame 21 and the lower frame 22 extend in the width direction. The vertical frames 23 extend in the vertical direction. Each vertical frame 23 connects the end of the upper frame 21 and the end of the lower frame 22.

[0022] The lower frame 22 has an outer plate portion 221, an inner plate portion 222, and a connecting plate portion 223. The outer plate portion 221 is positioned on the outdoor side of the glass 29. The inner plate portion 222 is positioned on the indoor side of the glass 29. The outer plate portion 221 and the inner plate portion 222 are formed in a plate shape. The plate surfaces of the outer plate portion 221 and the inner plate portion 222 face in the indoor / outdoor direction. The outer plate portion 221 and the inner plate portion 222 are positioned over substantially the entire width of the outer sash 2.

[0023] The vertical length of the outer plate portion 221 is longer than the vertical length of the inner plate portion 222. The upper end of the outer plate portion 221 and the upper end of the inner plate portion 222 are located at approximately the same height. The lower end portion 221d of the outer plate portion 221 is located below the lower end portion 222d of the inner plate portion 222.

[0024] On the outdoor side of the outer rail support portion 125 of the lower frame 12, an airtight line A1 is formed that runs horizontally, passing through the lower end portion 221d of the outer plate portion 221 of the lower frame 22 of the outer sash 2.

[0025] The connecting plate portion 223 connects the vertical midpoint of the outer plate portion 221 and the vertical midpoint of the inner plate portion 222. The connecting plate portion 223 has a roller hole (not shown) that penetrates vertically. A roller 224 is provided in the roller hole. The roller 224 is capable of running on the outer rail 126 of the lower frame 12.

[0026] The glass 29 is housed within the frame 20. In this embodiment, the glass 29 is double-pane glass, but it may also be single-pane glass or the like.

[0027] The interior sliding door 3 comprises a frame 30 and glass 39. The frame 30 is formed in a four-sided frame shape. The frame 30 comprises an upper frame 31, a lower frame 32, and a pair of vertical frames 33. In this embodiment, the frame 30 is made of resin, but it may be made of a metal profile such as an aluminum alloy or an aluminum-resin composite. The upper frame 31 and the lower frame 32 extend in the width direction. The vertical frames 33 extend in the vertical direction. Each vertical frame 33 connects the end of the upper frame 31 and the end of the lower frame 32. A roller 324 is provided on the lower frame 32. The roller 324 is capable of running on the inner rail 123 of the lower frame 12.

[0028] The glass 39 is housed within the frame 30. In this embodiment, the glass 39 is double-pane glass, but it may also be single-pane glass or the like.

[0029] The screen door 4 is positioned on the exterior side of the outer sash 2. The screen door 4 is designed to run on the screen door rail 128 of the lower frame 12.

[0030] As shown in Figure 2, the newly installed sliding window 200 (new sash) utilizes the existing frame 1 of the existing sliding window 100, and replaces the existing outer sash 2 and inner sash 3 with the newly installed outer sash 5 and inner sash 6. The newly installed outer sash 5 after replacement will be referred to as the new outer sash 5, and the newly installed inner sash 6 after replacement will be referred to as the new inner sash 6. In the components of the newly installed sliding window 200, those that are the same as the components of the existing sliding window 100 are given the same reference numerals, and the explanation of those components is omitted.

[0031] The newly installed sliding window 200 consists of an existing frame 1, a new exterior sash 5, a new interior sash 6, and a screen door 4.

[0032] The newly installed exterior sliding door 5 has a frame 50 and glass 59. The frame 50 is formed in a four-sided frame shape. The frame 50 has an upper frame 51, a lower frame 52, and a pair of vertical frames 53. In this embodiment, the frame 50 is made of resin, but it may be made of a metal profile such as an aluminum alloy or an aluminum-resin composite. The upper frame 51 and the lower frame 52 extend in the width direction. The vertical frames 53 extend in the vertical direction. Each vertical frame 53 connects the end of the upper frame 51 and the end of the lower frame 52.

[0033] The glass 59 is housed within the frame 50. In this embodiment, the glass 59 is triple-pane glass, which has better thermal insulation than the glass 29 of the existing sliding window 100. However, single-pane glass, laminated glass, double-pane glass, etc., may also be used as long as they have better thermal insulation than the existing sash.

[0034] The newly installed interior shoji screen 6 has the same configuration as the newly installed exterior shoji screen 5 except for the size of the glass 59, and is therefore given the same reference numerals and its description is omitted. The bottom frame 52 of the newly installed interior shoji screen 6 and the bottom frame 52 of the newly installed exterior shoji screen 5 have the same dimensions and the same cross-sectional shape.

[0035] In the newly installed exterior sash 5, the vertical length of the upper frame 51 is shorter than the vertical length of the upper frame 21 of the existing exterior sash 2 of the sliding window 100. The vertical length of the lower frame 52 is shorter than the vertical length of the lower frame 22. The widthwise length of the vertical frame 53 is shorter than the widthwise length of the vertical frame 23. As a result, the vertical and widthwise lengths of the glass 59 of the newly installed exterior sash 5 can be made longer than the vertical and widthwise lengths of the glass 29 of the existing exterior sash 2, thereby improving the light transmission and heat insulation compared to the existing structure.

[0036] As shown in Figure 3, an attachment 7 is provided at the lower end of the lower frame 52 of the newly installed exterior sliding door 5. The lower frame 52 has a first outer panel (outdoor side wall) 521, a second outer panel 522, a first inner panel 523, a second inner panel 524, and a connecting panel 525.

[0037] The first outer panel 521 is positioned on the outdoor side of the glass 59. The second outer panel 522 is positioned on the indoor side of the first outer panel 521. The outdoor side wall 521 and the second outer panel 522 are positioned opposite each other in the indoor-outdoor direction. A hollow space is formed between the first outer panel 521 and the second outer panel 522. The lower end of the outdoor side wall 521 and the lower end of the second outer panel 522 are at the same height. The first outer panel 521 and the second outer panel 522 are formed in a plate shape. The plate surfaces of the first outer panel 521 and the second outer panel 522 face in the indoor-outdoor direction. The first outer panel 521 and the second outer panel 522 are positioned along approximately the entire width of the newly installed outer sash 5.

[0038] The first inner panel 523 is positioned on the indoor side of the glass 59. The second inner panel 524 is positioned on the outdoor side of the first inner panel 523. The first inner panel 523 and the second inner panel 524 are formed in a plate shape. The surface of the first inner panel 523 and the surface of the second inner panel 524 face in the indoor / outdoor direction. The first inner panel 523 and the second inner panel 524 are positioned along approximately the entire width of the newly installed exterior sash 5.

[0039] The connecting plate portion 525 connects the vertical midpoint of the second outer plate portion 522 and the vertical midpoint of the second inner plate portion 524. The connecting plate portion 525 has a roller hole (not shown) that penetrates vertically. A roller 526 is provided in the roller hole.

[0040] The lower part of the first outer plate section 521 and the lower part of the second outer plate section 522 are connected by an outer connecting wall section 531. A screw hole 532 is formed in the outer connecting wall section 531, penetrating in the vertical direction. A screw 78, which will be described later, is screwed into the screw hole 532.

[0041] The lower end of the first outer panel 521 is provided with a first outer locking wall 533 that extends inward. The lower end of the second outer panel 522 is provided with a second outer locking wall 534 that extends outward. The first outer locking wall 533 and the second outer locking wall 534 are located at the same height. A gap is formed between the first outer locking wall 533 and the second outer locking wall 534. A screw 78 is inserted through this gap.

[0042] The lower end of the first inner plate portion 523 is provided with a first inner locking wall portion 535 that extends outward. The lower end of the second inner plate portion 524 is provided with a second inner locking wall portion 536 that extends inward. An inner airtight material 541 is fitted between the first inner locking wall portion 535 and the second inner locking wall portion 536. The inner airtight material 541 is arranged along the first inner locking wall portion 535 and the second inner locking wall portion 536, extending over approximately the entire length of the lower frame 52. The outer end of the inner airtight material 541 abuts against the outer rail support portion 125.

[0043] The attachment 7 is attached to the lower end of the lower frame 52. The attachment 7 is positioned along the first outer locking wall portion 533 and the second outer locking wall portion 534. The attachment 7 is positioned along substantially the entire length of the lower frame 52. The attachment 7 has a fixing portion 71 and a hanging portion 72. In this embodiment, the attachment 7 is made of a metal such as aluminum, but it may be made of other materials such as resin.

[0044] The fixing portion 71 is positioned along the lower surface of the first external locking wall portion 533 and the lower surface of the second external locking wall portion 534. The fixing portion 71 is formed in a plate shape. The plate surface of the fixing portion 71 is oriented in the vertical direction. As shown in Figure 4, mounting holes 712 are formed at the indoor end 711 of the fixing portion 71 so as to be recessed toward the outdoor side. Multiple mounting holes 712 are formed at intervals along the longitudinal direction of the fixing portion 71.

[0045] The mounting hole 712 is formed by a screw insertion hole portion 713 and a screw fixing hole portion 714. The screw insertion hole portion 713 has a shape that is recessed in a roughly rectangular shape from the end portion 711. The screw fixing hole portion 714 is formed continuously with the screw insertion hole portion 713 and has a roughly circular shape. The width (length in the width direction of the new outer sash 5) W1 of the screw insertion hole portion 713 is longer than the diameter of the threaded portion 781 of the screw 78, which will be described later. This allows the threaded portion 781 to be inserted through the screw insertion hole portion 713. The diameter W2 of the screw fixing hole portion 714 is longer than the width W1 of the screw insertion hole portion 713 and shorter than the diameter of the head 782 of the screw 78. This locks the head 782 into the screw fixing hole portion 714.

[0046] As shown in Figure 3, the threaded portion 781 extending upward from the bolt-nut-shaped (hexagonal) head 782 of the screw 78 is inserted through the mounting hole 712 of the fixing portion 71, through the gap between the first outer locking wall portion 533 and the second outer locking wall portion 534 of the lower frame 52, and screwed into the threaded hole 532 of the outer connecting wall portion 531.

[0047] The hanging portion 72 extends downward from the outdoor end of the fixing portion 71. The hanging portion 72 is formed in a plate shape. The plate surface of the hanging portion 72 faces in the indoor / outdoor direction. The outdoor-facing surface 72a of the hanging portion 72 is located on the same plane as the outdoor-facing surface 521a of the first outer plate portion 521 of the lower frame 52, along the vertical plane.

[0048] An extension wall portion 73 extending inward is provided at the middle of the vertical direction of the hanging portion 72. A downward-facing wall portion 74 extending downward is provided at the indoor end of the extension wall portion 73.

[0049] A first support wall section (airtight material support section) 721 extending inward is provided at the lower end of the hanging section 72. A second support wall section (airtight material support section) 741 extending outward is provided at the lower end of the downward-facing wall section 74.

[0050] An outer airtight seal (airtight seal) 542 is fitted between the first support wall portion 721 and the second support wall portion 741. The outer airtight seal 542 is positioned along the lower surface of the first support wall portion 721 and the lower surface of the second support wall portion 741, extending over approximately the entire length of the lower frame 52. The indoor end of the outer airtight seal 542 abuts against the outer rail support portion 125. The outer airtight seal 542 has the same shape as the inner airtight seal 541 and is positioned symmetrically in the indoor-outdoor direction.

[0051] The first support wall section 721 and the second support wall section 741 are located at the same height as the lower end portion 221d (see Figure 1) of the outer plate section 221 of the lower frame 22 of the existing sliding window 100. As a result, the airtight line A2 of the newly installed sliding window 200 is at the same height as the airtight line A1 of the existing sliding window 100.

[0052] A newly installed outer rail 8 is fitted between a pair of outer rail support parts 125 of the lower frame 12. The outer rail 8 has a rail base 81, a pair of rail locking wall parts 82, and a rail body 83. The rail base 81 is located above the pair of outer rail support parts 125. The pair of rail locking wall parts 82 extend downward from the rail base 81. The pair of rail locking wall parts 82 are spaced apart in the indoor-outdoor direction. The rail locking wall parts 82 are locked to the outer rail support parts 125. The rail body 83 protrudes upward from the rail base 81. At the lower end of the rail body 83, a recess 831 is formed that curves inward from the outdoor side surface towards the indoor side, and a recess 831 is formed that curves inward from the indoor side surface towards the outdoor side. The upper end of the rail body 83 has a shape that curves upward and bulges in a vertical cross-section along the indoor-outdoor direction. The door roller 526, which is installed on the lower frame 52, is capable of moving along the rail body 83.

[0053] To attach the above-mentioned attachment 7 to the lower frame 52, the threaded portion 781 of the screw 78 is inserted into the gap between the first outer locking wall portion 533 and the second outer locking wall portion 534 of the lower frame 52 and loosely screwed into the threaded hole 532 of the outer connecting wall portion 531. At this time, a gap of at least the thickness (vertical length) of the fixing portion 71 of the attachment 7 is ensured between the threaded portion 781 of the screw 78 and the first outer locking wall portion 533 and the second outer locking wall portion 534. The attachment 7 is moved from the outdoor side to the indoor side so that the mounting hole 712 of the fixing portion 71 of the attachment 7 is inserted into the portion of the threaded portion 781 that extends below the first outer locking wall portion 533 and the second outer locking wall portion 534. Positioning is completed when the threaded fixing hole portion 714 of the mounting hole 712 reaches the threaded portion 781. At this position, tighten the screw 78 further to fully screw the threaded portion 781 into the threaded hole 532 of the outer connecting wall portion 531.

[0054] Next, the window renovation method according to this embodiment, and the operation of the window renovation method and the resin sash will be explained in detail based on the drawings. As shown in Figures 1 and 3, when replacing the existing sashes (outer sashes 2 and inner sashes 3) with new sashes (new outer sashes 5 and new inner sashes 6) on the existing frame 1, first the existing sashes, the outer sashes 2 and inner sashes 3, are removed from the existing frame 1. Next, the new outer sashes 5 and new inner sashes 6, which have higher thermal insulation performance than the existing sashes, are attached to the existing frame 1. At this time, the existing frame 1 is not modified or reinforced.

[0055] When replacing the above, the existing double-glazed shoji screens 2 and 3 will be replaced with new shoji screens 5 and 6 equipped with triple-glazed glass. In order to make the thickness of the existing shoji screens 2 and 3 and the frame 20 in the indoor and outdoor directions approximately the same for the new shoji screens 5 and 6, the sash 91B and glass packing 92B that hold the new shoji screens 5 and 6 are made of materials with a smaller thickness than the sash 91A and glass packing 92A that hold the existing shoji screens 2 and 3.

[0056] As described above, the newly installed sliding window 200 has new sashes 5 and 6, which have a smaller frame width than the existing sashes 2 and 3, attached to the existing frame 1. As a result, it is possible to use sashes with a larger glass opening area for the new sashes 5 and 6 than for the existing sashes 2 and 3. In this embodiment, the visible dimension refers to the vertical dimension.

[0057] In the newly installed sliding window 200, an attachment 7 is attached that extends downward from the first outer panel portion 521 of the lower frame 52 of the newly installed outer sash 5. Specifically, the fixing portion 71 of the attachment 7 is fixed to the lower end of the first outer panel portion 521. The airtight line A2 can be positioned lower than the lower end of the lower frame 52 by the vertical length of the hanging portion 72. Therefore, even if the lower end of the lower frame 52 of the newly installed outer sash 5 (first outer locking wall portion 533 and second outer locking wall portion 534) is higher than the lower end 221d of the lower frame 22 of the existing outer sash 2, the lower end of the attachment 7 (first support wall portion 721 and second support wall portion 741) can be positioned as the airtight line A2, thus ensuring the same level of airtightness as before.

[0058] In this embodiment, the existing frame 1 can be easily replaced with new shoji screens 5 and 6 that have high thermal insulation performance by simply replacing only the shoji screens. In other words, it eliminates the need for time-consuming work such as attaching the new frame to the lower frame 12 of the existing frame 1, changing the configuration of the existing frame 1, or reinforcing the existing frame 1, as in the conventional method, thus improving workability. For example, if the lower frame is reinforced as in the conventional method, replacing it with a new shoji screen with triple-pane glass that has high thermal insulation performance will increase the weight of the new shoji screen. Therefore, it is necessary to reinforce the frame with sufficient strength to handle this increased weight, which increases the scale of reinforcement and the amount of work required for replacement. In contrast, in this embodiment, since the above-mentioned reinforcement of the existing frame 1 is unnecessary, construction can be carried out efficiently.

[0059] (Second Embodiment) As shown in Figures 5 to 8, the window renovation method and resin sash according to the second embodiment, using a vertical sliding window as an example, utilizes the existing frame 1A of the existing vertical sliding window 100A as is and does not replace it, but rather replaces only the existing sash 2A with a new sash 5A, as shown in Figure 5. Regarding the configuration of the vertical sliding window 100A in the second embodiment, a detailed explanation is omitted as it is the same as that of the sliding window 100 described above.

[0060] The existing vertical sliding window 100A comprises an existing frame 1A and an existing sash 2A. The existing frame 1A is formed in a four-sided frame shape. The existing frame 1A has an upper frame 11A, a lower frame 12A, and a pair of vertical frames 13A. In this embodiment, the existing frame 1A is made of resin, but it may also be made of metal profiles such as aluminum alloy or an aluminum-resin composite (a configuration in which aluminum members and resin members are assembled). The existing sash 2A is installed so as to be rotatable around the axis of the suspension supported by the vertical frame 13A of the existing frame 1A. The existing sash 2A comprises a frame 20A and glass 29A. Double-glazed glass is used for the glass 29A.

[0061] As shown in Figures 6 and 7, the newly installed vertical sliding window 200A utilizes the existing frame 1A of the existing vertical sliding window 100A shown in Figure 5, and replaces the existing sash 2A with a new sash 5A. In the components of the newly installed vertical sliding window 200A, those identical to the components of the existing vertical sliding window 100A are given the same reference numerals, and their descriptions are omitted. The new sash 5A has a frame 50A and glass 59A. The glass 59A is housed within the frame 50A. In this embodiment, triple-pane glass 59A is used, which has better thermal insulation than the glass 29A of the existing vertical sliding window 100A.

[0062] The visible frame dimension of the frame body 50A of the newly installed shoji screen 5A is the same as the visible frame dimension of the existing shoji screen 2A, with no change.

[0063] The thickness dimensions of the trim 93B and glass packing 94B that hold the glass 59A of the newly installed shoji screen 5A, which consists of triple glazing, are set to be smaller than the thickness dimensions of the trim 93A and glass packing 94A provided on the existing shoji screen 2A. The depth dimension of the frame 50A of the newly installed shoji screen 5A is approximately the same as that of the frame 20A of the existing shoji screen 2A.

[0064] In the window renovation method and vertical sliding window according to the second embodiment configured in this way, the existing sash 2A can be easily replaced with a new sash 5A having high thermal insulation performance by replacing only the sash.

[0065] (Third embodiment) As shown in Figures 9 to 11, the window renovation method and resin sash according to the third embodiment, using an example of an opening window, is a method in which the existing frame 1B of the existing opening window 100B (resin sash) is used as is and not replaced, and only the existing sash 2B is replaced with a new sash 5B.

[0066] As shown in Figure 10, the existing casement window 100B comprises an existing frame 1B and an existing sash 2B. The existing frame 1B is formed in a four-sided frame shape. The existing frame 1B has an upper frame 11B, a lower frame 12B, and a pair of vertical frames 13B. In this embodiment, the existing frame 1B is made of resin, but it may be made of metal profiles such as aluminum alloy or an aluminum-resin composite (a configuration in which aluminum members and resin members are assembled). The existing sash 2B is rotatably installed around the axis of the suspension supported by the vertical frame 13B of the existing frame 1B. The existing sash 2B has a frame 20B and glass 29B. Double-glazed glass is used for the glass 29B.

[0067] As shown in Figure 9, the newly installed casement window 200B utilizes the existing frame 1B of the existing casement window 100B, and replaces the existing sash 2B with the newly installed sash 5B. Components of the newly installed casement window 200B that are identical to those of the existing casement window 100B are denoted by the same reference numerals, and their descriptions are omitted. The newly installed sash 5B has a frame 50B and glass 59B. The glass 59B is housed within the frame 50B. In this embodiment, triple-pane glass, which has better thermal insulation than the glass 29B of the existing casement window 100B, is used for the glass 59B.

[0068] The thickness dimensions of the trim 95B and glass packing 96B that hold the glass 59B of the newly installed shoji screen 5B, which consists of triple glazing, are set to be smaller than the thickness dimensions of the trim 95A and glass packing 96A provided on the existing shoji screen 2B. The depth dimension of the frame 50B of the newly installed shoji screen 5B is approximately the same as that of the frame 20 of the existing shoji screen 2B.

[0069] As described above, the newly installed casement window 200B, which has been replaced, has a new sash 5B with a smaller frame width than the existing sash 2B, which is attached to the existing frame 1B. As a result, it is possible to use a sash with a larger glass opening area for the new sash 5B than for the existing sash 2B.

[0070] In the window renovation method and casement window according to the third embodiment configured in this way, the existing shoji screen 2B can be easily replaced with a new shoji screen 5B having high thermal insulation performance by replacing only the shoji screen.

[0071] (Fourth Embodiment) As shown in Figures 12 and 13, the window renovation method and resin sash according to the fourth embodiment are swing-type windows, and using a back door window as an example, this method utilizes the existing frame 1C of the existing back door window 100C as is and does not replace it, but only replaces the existing sash 2C with a new sash 5C.

[0072] As shown in Figure 12, the existing back door window 100C comprises an existing frame 1C and an existing sash 2C. The existing frame 1C is formed in a four-sided frame shape. The existing frame 1C has an upper frame 11C, a lower frame 12C, and a pair of vertical frames. In this embodiment, the existing frame 1C is made of resin, but it may also be made of metal profiles such as aluminum alloy or an aluminum-resin composite (a configuration in which aluminum members and resin members are assembled). The existing sash 2C is installed so as to be rotatable around the axis of the hinge supported by the vertical frame of the existing frame 1C. The existing sash 2C has a frame 20C and glass 29C. Double-glazed glass is used for the glass 29C.

[0073] As shown in Figure 13, the newly installed back door window 200C utilizes the existing frame 1C of the existing back door window 100C, and replaces the existing sash 2C with a new sash 5C. Components of the newly installed back door window 200C that are identical to those of the existing back door window 100C are denoted by the same reference numerals, and their descriptions are omitted. The new sash 5C has a frame 50C and glass 59C. The glass 59C is housed within the frame 50C. In this embodiment, triple-pane glass, which has better thermal insulation than the glass 29C of the existing back door window 100C, is used for the glass 59C.

[0074] The newly installed back door window 200C is designed so that the frame dimensions of the newly installed sash 5C are smaller than those of the existing sash 2C. Therefore, in this embodiment, the glass opening area of ​​the newly installed sash 5C is larger than that of the existing sash 2C, and thus triple glazing is used for the newly installed sash 5C.

[0075] As shown in Figure 13, the thickness dimensions of the trim 97B and glass packing 98B that hold the glass 59B of the newly installed sash 5C, which consists of triple glazing, are set to be smaller than the thickness dimensions of the trim 97A and glass packing 98A provided on the existing sash 2C. The depth dimension of the frame 50C of the newly installed sash 5C is approximately the same as that of the frame 20C of the existing sash 2C.

[0076] In the window renovation method and back door window according to the fourth embodiment configured in this way, the existing shoji screen 2C can be easily replaced with a new shoji screen 5C having high thermal insulation performance by replacing only the shoji screen.

[0077] The above information pertains to the window renovation method and sash While embodiments have been described, this disclosure is not limited to the embodiments described above.

[0078] For example, in the sliding window of the first embodiment described above, attachments may also be attached to framed doors, casement windows, etc. Alternatively, attachments may also be attached to the inner sash of the sliding window.

[0079] Furthermore, in the embodiment described above, since the glass of the newly installed sash becomes triple-pane glass and the load increases, it may be possible to support it from above the exterior wall with reinforcing material such as an L-shaped angle.

[0080] Furthermore, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, without departing from the spirit of this disclosure. [Explanation of Symbols]

[0081] 1, 1A, 1B, 1C... Existing frame, 2... Existing outer sash, 3... Existing inner sash, 4... Screen door, 5... New outer sash, 5A, 5B, 5C... New sash, 6... New inner sash, 7, 7A... Attachment, 8... Outer rail, 22... Bottom frame of existing outer sash, 29, 29A, 29B, 29C... Glass of existing outer sash, 52... Bottom frame of new outer sash, 59, 59A, 59B, 59C... Glass of new outer sash, 72... Hanging part, 91A, 91B, 93A, 93B, 95A, 95B, 97A, 97B ...Folding strips, 92A, 92B, 94A, 94B, 96A, 96B, 98A, 98B...Glass gaskets, 100...Existing sliding windows (resin sash), 200...New sliding windows (resin sash), 100A...Existing casement windows (resin sash), 200A...New casement windows (resin sash), 100B...Existing casement windows (resin sash), 200B...New casement windows (resin sash), 100C...Existing back door windows (resin sash), 200C...New back door windows (resin sash)

Claims

1. In a window renovation method for replacing a sash in a window frame where at least one of the frame and the stile is made of aluminum, Remove the existing shoji screen from the existing frame that is installed in the opening and frames all four sides. A new shoji screen having higher thermal insulation performance than the aforementioned existing shoji screen is attached to the existing frame. The aforementioned sash is a sliding window, A window renovation method in which a new shoji screen, having a smaller frame width than the existing shoji screen, is attached to the existing frame.

2. The window renovation method according to claim 1, comprising replacing the existing sash equipped with double-pane glass with the new sash equipped with triple-pane glass.

3. The outer rail of the lower frame of the existing frame, which supports the outer sash, is formed in a stepped shape so that it is lower than the inner rail that supports the inner sash. The newly installed shoji screen, with its lower ends formed at the same height on both the indoor and outdoor sides of the outer rail support portion supported by the outer rail, is attached to the existing frame. The window renovation method according to claim 1 or 2, wherein a hanging portion is attached to the lower outdoor end of the lower frame of the outer sash, the hanging portion being positioned to extend downward from the lower outdoor end.

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