Window fitting structure and construction method for window fitting structure

Abstract

To fill a gap formed between a sash frame and a window frame, thereby enabling cost reduction and shortening of construction time for an entire building.SOLUTION: A window fitting structure is configured in such a manner of: providing a window 3 in an opening 2 formed in a wall 1 of a building, the window 3 being configured to include a window sash 10 located on the outdoor side of the edge of the opening 2 and a window frame 20 located on the indoor side of the edge of the opening 2, the window sash 10 having a window screen 11 for opening / closing the opening 2 and a sash frame 12 fixed to the edge of the opening 2 to hold the window screen 11 in an opening and closing manner; positioning the sash frame 12 away from the window frame 20 on the outdoor side with a gap S formed between the sash frame 12 and the window frame 20; and attaching a sash spacer 30 for filling the gap S to the indoor side of the sash frame 12.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a window storage structure and a construction method of a window storage structure.

Background Art

[0002] For example, Patent Document 1 discloses a window structure in which a window sash is attached to the outdoor side of the edge of an opening formed in a wall and a wooden window frame is attached to the indoor side. The window sash includes a window shutter in which a window glass is fitted and which opens and closes the opening, and a sash frame that holds the window shutter in a state where it can be opened and closed. A fixing piece of the sash frame is fixed to the edge of the opening. The window frame has a recess formed at the end on the sash frame side for accommodating the fixing piece. By accommodating the fixing piece of the sash frame in the recess of the window frame, the sash frame and the window frame are arranged in contact with each other.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Incidentally, many house builders procure custom window sashes from sash manufacturers that are suited to their house designs, and often design custom window frames to match. However, in recent years, in order to reduce overall building costs and shorten construction time, relatively inexpensive, general-purpose window sashes are sometimes used. When window sashes with shapes or mounting methods that do not conform to the previous design conditions are used, gaps may form between the sash frame and the window frame. This is undesirable not only from an aesthetic standpoint, but also because the exposed edges of the opening may affect the structure. Furthermore, if new window frames are produced to match the general-purpose products to prevent such gaps from forming, it would mean producing new window frames in addition to the existing custom-made window frames, which could actually lead to increased costs. Therefore, there is a need for the development of technology that can effectively fill the gaps formed between the window sash and the window frame, even when general-purpose window sashes are used.

[0005] This invention has been made in view of the above circumstances, and its purpose is to be able to fill gaps that form between the sash frame and the window frame, for example, when a window sash made from a general-purpose product is used, thereby reducing the overall cost of the building and shortening the construction period. [Means for solving the problem]

[0006] The invention described in claim 1 is, for example, a fitting structure for window 3, as shown in Figures 1 to 8, A window 3 is provided in an opening 2 formed in the wall 1 of the building. The window 3 comprises a window sash 10 located on the outdoor side of the edge of the opening 2, and a window frame 20 located on the indoor side of the edge of the opening 2. The window sash 10 comprises a window sash 11 for opening or closing the opening 2, and a sash frame 12 that holds the window sash 11 in a state where it can be opened and closed and is fixed to the edge of the opening 2. The sash frame 12 is positioned apart from the window frame 20 on the outdoor side. A gap S is formed between the sash frame 12 and the window frame 20. A sash spacer 30 is attached to the indoor side of the sash frame 12 to fill the gap S. And, The aforementioned sash spacer 30 is The main body portion 31 includes a portion sandwiched between the sash frame 12 and the window frame 20 and a portion exposed to the indoor side, It includes a fixing portion 32 located closer to the edge of the opening 2 than the main body portion 31, and fixed to the sash frame 12. Of the sash spacer 30, the portion of the main body 31 that is sandwiched between the sash frame 12 and the window frame 20 and the fixing portion 32 are shielded by the window frame 20. It is characterized by having this feature.

[0007] According to the invention described in claim 1, the sash frame 12 that constitutes the window sash 10 together with the window sash 11 is positioned spaced apart from the window frame 20 on the outdoor side, so that a gap S is formed between the sash frame 12 and the window frame 20. A sash spacer 30 is attached to the indoor side of the sash frame 12 to fill this gap S. Therefore, even if a gap S is formed between the sash frame 12 and the window frame 20, for example, when a window sash 10 from a general route is used, the gap S can be filled by the sash spacer 30. As a result, there is no need to manufacture a new window frame to prevent the formation of a gap S between the sash frame 12 and the window frame 20, and consequently, the overall cost of the building and the construction period can be reduced.

[0009] Also As a result, a portion of the main body 31 of the sash spacer 30 is exposed to the indoor side, while the other portion of the main body 31 and the fixing portion 32 are shielded by the window frame 20. This allows the gap S between the sash frame 12 and the window frame 20 to be filled, while the fixing portion 32 is reliably shielded, resulting in a better appearance. Furthermore, since the sash spacer 30 includes a main body portion 31 that is sandwiched between the sash frame 12 and the window frame 20, a part of the sash spacer 30 is sandwiched between the sash frame 12 and the window frame 20, which improves the installation of the sash spacer 30.

[0010] Claim 2 The invention described above is, for example, as shown in Figures 4 to 8, 1In the window 3 fitting structure described above, A recess is formed on the side of the sash spacer 30 that faces the sash frame 12. The portion of the main body 31 that is sandwiched between the sash frame 12 and the window frame 20 and the fixing portion 32 overlap with the area in which the recess is formed. The fixing portion 32 is characterized by having a through hole 32a through which the fixing material is passed.

[0011] Claim 2 According to the invention described above, a recess is formed on the sash spacer 30 on the sash frame 12 side, so the area of ​​the sash spacer 30 in which the recess is formed has a slight elasticity. The portion of the main body 31 that is sandwiched between the sash frame 12 and the window frame 20 and the fixing portion 32 overlap with the area in which the recess is formed, and the fixing portion 32 has a through hole 32a through which the fixing material passes, so it can absorb the force that pushes the fixing material toward the sash frame 12 side. In addition, since the main body 31 includes the portion that is sandwiched between the sash frame 12 and the window frame 20, the main body 31 is pressed toward the sash frame 12 side by the window frame 20. As a result, when the sash spacer 30 is fixed to the sash frame 12 by the fixing material, the upper end of the main body 31 is prevented from separating from the rising portion 12c.

[0012] Claim 3 The invention described above, for example as shown in Figures 2, 4 to 6, relates to the window 3 fitting structure described in claim 1, The aforementioned sash frame 12 is formed in the part of the main body of the sash frame 12 that is located on the indoor side, and has a rising portion 12c that rises from the edge of the opening 2 towards the center of the opening 2. The sash spacer 30 is attached to the indoor side of the rising portion 12c. The sash spacer 30 is characterized in that the end face located on the central side of the opening 2 and the rising portion 12c is characterized in that the end face located on the central side of the opening 2 are flush with each other.

[0013] Claim 3 According to the invention described in the claim, since the end face of the sash spacer 30 located on the center side of the opening 2 and the end face of the rising portion 12c located on the center side of the opening 2 are flush, the integrality between the rising portion 12c and the sash spacer 30 can be improved. As a result, the gap S formed between the sash frame 12 and the window frame 20 can be filled beautifully by the sash spacer 30.

[0014] Claim 4 The invention described in the claim is, for example, as shown in FIGS. 4 to 6, in the fitting structure of the window 3 described in claim 1, The sash frame 12 includes a fixing piece 12a (first fixing piece 12a) that protrudes toward the window frame 20 along the edge of the opening 2 from the portion located on the innermost side of the main body portion of the sash frame 12 and is fixed to the edge of the opening 2. The window frame 20 includes a recess 20a formed at the end portion closest to the sash frame 12 of the window frame 20 and accommodating the fixing piece 12a. The bottom of the gap S formed between the sash frame 12 and the window frame 20 is characterized by being the fixing piece 12a.

[0015] Claim 4 According to the invention described in the claim, since the fixing piece 12a of the sash frame 12 is accommodated in the recess 20a of the window frame 20, it is possible to prevent the buffering between the sash frame 12 and the window frame 20. Furthermore, since the bottom of the gap S formed between the sash frame 12 and the window frame 20 is the fixing piece 12a, the positioning of the sash spacer 30 can be performed based on the fixing piece 12a, and the construction of the sash spacer 30 becomes easier.

[0016] Claim 5 The invention described in the claim is, for example, as shown in FIGS. 1 to 3, A window 3 is provided in an opening 2 formed in the wall 1 of the building. The window 3 comprises a window sash 10 located on the outdoor side of the edge of the opening 2, and a window frame 20 located on the indoor side of the edge of the opening 2. The window sash 10 comprises a window sash 11 for opening or closing the opening 2, and a sash frame 12 that holds the window sash 11 in a state where it can be opened and closed and is fixed to the edge of the opening 2. The sash frame 12 is positioned apart from the window frame 20 on the outdoor side. A gap S is formed between the sash frame 12 and the window frame 20. A sash spacer 30 is attached to the indoor side of the sash frame 12 to fill the gap S. The sash frame 12 is provided with a fixing piece 12a (first fixing piece 12a) that protrudes from the part of the main body of the sash frame 12 that is located on the indoor side, along the edge of the opening 2, toward the window frame 20, and is fixed to the edge of the opening 2. The window frame 20 has a recess 20a formed at the end of the window frame 20 closest to the sash frame 12, in which the fixing piece 12a is accommodated. The bottom of the gap S formed between the sash frame 12 and the window frame 20 is the fixing piece 12a. The construction method for the fitting structure of window 3, The aforementioned sash frame 12 consists of a lower horizontal frame member 121, an upper horizontal frame member 122, a vertical frame member 124 on one side, and a vertical frame member 123 on the other side. The sash spacer 30 consists of a first sash spacer 30 attached to the lower horizontal frame member 121, a second sash spacer 30 attached to the upper horizontal frame member 122, a third sash spacer 30 attached to the vertical frame member 124 on one side, and a fourth sash spacer 30 attached to the vertical frame member 123 on the other side. After assembling the frame members 121 to 124 of the sash frame 12 into a rectangular frame shape, the third sash spacer 30 is attached to the vertical frame member 124 on one side. The first sash spacer 30 is positioned in contact with the lower end edge of the third sash spacer 30, and is attached to the lower horizontal frame member 121 in contact with the fixing piece 12a of the lower horizontal frame member 121. The process involves attaching the second sash spacer 30 to the upper horizontal frame member 122 while it is in contact with the upper end edge of the third sash spacer 30 and in contact with the fixing piece 12a on the upper horizontal frame member 122, The method is characterized by including the step of attaching the fourth sash spacer 30 to the other side vertical frame member 123 after slightly separating it from the fixing piece 12a on the other side vertical frame member 123 and making it in contact with the other side ends of the first sash spacer 30 and the second sash spacer 30.

[0017] Claim 5 According to the invention described, The sash frame 12, which together with the window sash 11 constitutes the window sash 10, is positioned spaced apart from the window frame 20 on the outdoor side, thereby creating a gap S between the sash frame 12 and the window frame 20. A sash spacer 30 is attached to the indoor side of the sash frame 12 to fill this gap S. Therefore, even if a gap S is formed between the sash frame 12 and the window frame 20, for example, when a standard window sash 10 is used, the gap S can be filled by the sash spacer 30. This eliminates the need to manufacture a new window frame to prevent the formation of a gap S between the sash frame 12 and the window frame 20, resulting in overall cost reduction and shorter construction time for the building. Furthermore, since the fixing piece 12a of the sash frame 12 is housed in the recess 20a of the window frame 20, it is possible to prevent interference between the sash frame 12 and the window frame 20. Furthermore, since the bottom of the gap S formed between the sash frame 12 and the window frame 20 is the fixing piece 12a, the sash spacer 30 can be positioned using the fixing piece 12a as a reference, making the installation of the sash spacer 30 easier. and, When the four sash spacers 30 are arranged in a rectangular frame shape along the sash frame 12, which consists of four frame members 121 to 124, the horizontal first and second sash spacers 30 are positioned between the vertical third and fourth sash spacers 30, resulting in a so-called vertical dominance. Therefore, even if each sash spacer 30 sags down overall due to aging, for example, gaps S are less likely to form between each sash spacer 30, making it easier to maintain a good appearance even when aging occurs. Furthermore, by installing the vertical third sash spacer 30 first, then the horizontal first and second sash spacers 30, and then the vertical fourth sash spacer 30, the dimensional tolerances that occur during the processing of the sash spacers 30 can be absorbed. [Effects of the Invention]

[0018] According to the present invention, when a gap is formed between the sash frame and the window frame, for example, when a window sash made from a general-purpose product is used, the gap can be filled, and as a result, the overall cost of the building and the construction period can be reduced. [Brief explanation of the drawing]

[0019] [Figure 1] This is a front view showing the general configuration of a window sash. [Figure 2] This is a cross-sectional view taken along line II-II in Figure 1. [Figure 3] This is a cross-sectional view taken along line III-III in Figure 1. [Figure 4] This is a longitudinal cross-sectional view showing details of the lower edge of the window. [Figure 5] This is a vertical cross-sectional view showing details of the upper edge of the window. [Figure 6] This is a cross-sectional view showing details of the side edge of the window. [Figure 7]This is a side view showing a sash spacer. [Figure 8] This is a front view showing the sash spacer. [Modes for carrying out the invention]

[0020] Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below are subject to various technically preferred limitations for carrying out the present invention, but the technical scope of the present invention is not limited to the embodiments and illustrated examples below. Note that the directions in the embodiments and illustrated examples below are set solely for the convenience of explanation.

[0021] An opening 2 is formed in the wall 1 of a house or other building, and a window 3 is provided in the opening 2 for opening or closing the opening 2. The window 3 in this embodiment comprises a window sash 10 installed on the outdoor side of the opening 2, a window frame 20 installed on the indoor side, and a sash spacer 30 provided between the window sash 10 and the window frame 20.

[0022] In this embodiment, window 3 is a vertical sliding window that opens by sliding outwards along grooves provided at the top and bottom. However, the type of window 3 is not limited to this, and can be changed as appropriate without departing from the spirit of the present invention.

[0023] Figure 1 is a front view showing the schematic configuration of the window sash 10 that constitutes the window 3. Figure 2 is a cross-sectional view taken along line II-II in Figure 1, and Figure 3 is a cross-sectional view taken along line III-III in Figure 1. In Figures 1 to 3, the components of the window sash 10 are shown in a simplified form, allowing the general shape and position of each component to be recognized. Furthermore, Figures 4 to 6 show the details of the main part of the window 3 in this embodiment, and Figures 7 and 8 show the details of the sash spacer 30.

[0024] [1. Regarding window sashes] As shown in Figures 1 to 6, the window sash 10 comprises a window sash 11 into which the window glass G is fitted and which opens or closes the opening 2, and a sash frame 12 which holds the window sash 11 in a state that allows it to be opened and closed.

[0025] The window sash 11 includes a frame 11a into which the window glass G is fitted and which holds the window glass G, and a handle 11b for operating the window sash 11.

[0026] Frame 11a is constructed by assembling four resin frame materials 111, 112, 113, and 114, manufactured by extrusion molding, into a rectangular frame shape, and holds multiple rectangular window panes G. Furthermore, each of the frame members 111 to 114 that make up frame 11a includes the lower frame member 111, the upper frame member 112, the left frame member 113, and the right frame member 114, and all of these frame members 111 to 114 have the same cross-sectional shape.

[0027] The handle 11b is capable of rotational movement around a shaft that is interlocked with a locking mechanism 11c provided at one end of the frame 11a. In other words, by rotating the handle 11b around the shaft, the locking mechanism 11c can be used to lock and unlock the window sash 11.

[0028] The sash frame 12 is constructed by assembling four resin frame materials 121, 111, 123, and 124, manufactured by extrusion molding, into a rectangular frame, with the window sash 11 positioned inside it. In other words, the opening 2 is closed when the window sash 11 is fitted inside the sash frame 12, and the opening 2 is opened when the window sash 11 is slid outwards to the outside.

[0029] Furthermore, each frame material 121 to 124 that constitutes the sash frame 12 includes the lower frame material 121, the upper frame material 122, the left frame material 123, and the right frame material 124, and all of these frame materials 121 to 124 have the same cross-sectional shape.

[0030] Furthermore, the sash frame 12 (each frame member 121 to 124) has a first fixing piece 12a that is fixed in contact with the edge of the opening 2, that is, the end face on the opening 2 side of the wall 1 in which the opening 2 is formed, and a second fixing piece 12b that is fixed in contact with the outdoor side of the wall 1 in which the opening 2 is formed. The first fixing piece 12a is formed to protrude inward from the wall 1 side end of the main body portion of the sash frame 12 (for example, the lower end in the case of the lower frame material 121) and along the end face of the wall 1 on the opening 2 side. The second fixing piece 12b is formed to protrude vertically downward from the wall 1 side end of the main body portion of the sash frame 12 along the outer surface of the wall 1. These first fixing piece 12a and second fixing piece 12b are then screwed to the wall 1.

[0031] In this embodiment, the wall 1 is constructed of wooden building panels. That is, the building itself is constructed using a so-called panel construction method, but it is not limited to this, and may also be constructed using conventional post-and-beam construction or wall construction methods. However, regardless of the construction method used, the edges of the opening 2 are provided with a base material that serves as a base for fixing screws that secure the sash frame 12. In architectural wooden panels, vertical and horizontal frame members Fm are assembled in a rectangular shape, and auxiliary cross members are assembled vertically and horizontally inside the rectangular frame to form a frame body. A surface material B, such as plywood, is attached to one or both sides of this frame body, resulting in a hollow internal structure. Furthermore, insulation material is installed in the hollow internal portion. Referring to Figures 4 to 6, the first fixing piece 12a and the second fixing piece 12b of the sash frame are fixed to the frame material Fm, the facing material B, and the adjustment material 1a fixed to the frame material Fm of the building wood panel that constitutes the wall 1. In other words, these frame material Fm, facing material B, and frame material Fm function as base material for the screws that fix the sash frame 12.

[0032] Furthermore, each sash frame 12 (each frame member 121-124) has a rising portion 12c formed at the part of the main body of the sash frame 12 that is located on the indoor side. This rising portion 12c protrudes from the end face of the wall 1 on the opening 2 side toward the center of the opening 2, and functions as a door stop when the opening 2 is closed by the window sash 11, against which the indoor side of the frame 11a of the window sash 11 makes contact. A water-sealing packing is provided on the outdoor side of the tip of this rising portion 12c.

[0033] Furthermore, each sash frame 12 (each frame member 121-124) has a drip edge portion 12d formed at the part of the main body of the sash frame 12 that is located on the outermost side. This drip edge portion 12d is formed to protrude in the opposite direction to the first fixing piece 12a, and its protruding tip is located outward from the outer surface of the exterior material 4 provided on the outdoor side of the wall 1.

[0034] Furthermore, the exterior cladding 4 is attached to the exterior side of wall 1 and covers the exterior side of wall 1. More specifically, a breathable waterproof sheet is attached to the exterior side of wall 1, and furring strips 4a are fixed on top of it, and the exterior cladding 4 is attached and fixed to these furring strips 4a. A joint is formed between the upper end surface of the exterior material 4 and the lower surface of the main body portion of the sash frame 12. A backing material 4b is provided at the bottom of the joint, and the joint is filled with a sealing material 4c. The flashing portion 12d of the sash frame 12 protrudes outward from the outer surface of the exterior material 4, and can provide waterproofing for parts of the wall 1 located below the flashing portion 12d (exterior material 4 and the joints mentioned above).

[0035] [2. Regarding window frames] As shown in Figures 4 to 6, the window frame 20 is fixed to the end face of the wall 1 on the side of the opening 2, and covers the indoor side of the end face of the wall 1 on the side of the opening 2. Such a window frame 20 is constructed by assembling four factory-produced wooden window frame materials 201, 202, and 203 into a rectangular frame shape.

[0036] Furthermore, each of the window frame members 201 to 203 that make up the window frame 20 includes the lower window frame member 201, the upper window frame member 202, the left window frame member 203, and the right window frame member (not shown), and all of these window frame members 201 to 203 have the same cross-sectional shape. Of the four window frame members 201 to 203, the lower window frame member 201 is also called a windowsill and may function as a storage space for placing items. Therefore, the lower window frame member 201 may be formed to protrude more inward than the other window frame members, in which case the lower window frame member 201 may have a different cross-sectional shape from the other window frame members 202 and 203.

[0037] Furthermore, each window frame 20 (each window frame member 201 to 203) has a recess 20a formed at the sash frame 12 side end of the main body portion of the window frame 20 that is on the wall 1 side, and which accommodates the first fixing piece 12a of the sash frame 12. Specifically, the recess 20a is formed by cutting an L-shape into the corner of the main body portion of the window frame 20 that is closest to the first fixing piece 12a.

[0038] Furthermore, each window frame 20 (each window frame material 201 to 203) has a protruding edge portion 20b that extends inward from the indoor end of the central end of the opening 2 within the main body portion of the window frame 20. This protruding edge portion 20b also functions as the part against which the end of the interior material 5 (gypsum board) attached to the indoor side of the wall 1 abuts. The interior material 5 is attached to the indoor side of the wall 1, but the end on the opening 2 side is also in contact with the indoor side of the main body portion of the window frame 20. In other words, the indoor side of the wall 1 and the indoor side of the main body portion of the window frame 20 are positioned flush, and the interior material 5 is installed spanning between the wall 1 and the window frame 20. Furthermore, the end of the interior material 5 on the opening 2 side is positioned to fit snugly into the inner corner formed by the indoor side of the main body portion of the window frame 20 and the back surface of the protruding edge portion 20b.

[0039] The window frame 20 has a thickness dimension in the main body that is approximately half the height of the rising portion 12c of the sash frame 12. In other words, when the window frame 20 is attached and fixed to the end face of the wall 1 on the side of the opening 2, the length to the central side of the opening 2 is approximately half the height of the rising portion 12c of the sash frame 12. Therefore, if the sash spacer 30 is not installed, the indoor side of the rising portion 12c will be exposed to the indoor side. In other words, because the window frame 20 is formed to be so thin, it has a design that gives a sharp impression to the viewer.

[0040] [3. Regarding window frame spacers] The sash spacer 30 is a resin molded product manufactured by extrusion molding. As shown in Figures 1 to 8, it is fixed to the indoor side surface of the rising portion 12c of the sash frame 12 and placed between the sash frame 12 and the window frame 20, thereby filling the gap S formed between the sash frame 12 and the window frame 20. More specifically, the sash spacers 30 are fixed to the rising portions 12c of each frame material 121 to 124 in the sash frame 12. Therefore, in this embodiment, four sash spacers 30 are used. Since each sash spacer 30 is fixed to the indoor side of the rising portions 12c of each frame material 121 to 124, which are arranged in a rectangular frame shape, the four sash spacers 30 are also arranged in a rectangular frame shape.

[0041] In this embodiment, the window frame 20 is a proprietary product of the house builder, a company product that conforms to their unique design. In contrast, the window sash 10 in this embodiment is a so-called general-purpose product, manufactured according to unified standards and distributed to the general public. Therefore, a gap S may be formed between the sash frame 12 and the window frame 20 in the window sash 10, and the sash spacer 30 is provided to fill such a gap S. In other words, when a house builder's proprietary product is used as the window sash, the sash spacer 30 is basically not used. Furthermore, if a standard window sash 10 is used, and instead of a gap S being formed between the sash frame 12 and the window frame 20, or even worse, the space between the sash frame 12 and the window frame 20 becomes too narrow, the dimensions may be adjusted on-site by trimming the outdoor side of the window frame 20. In addition, the reason for using standard route products is often to reduce overall building costs and shorten construction time. Furthermore, when the wall thickness is increased to improve insulation, a gap S may be formed between the sash frame 12 and the window frame 20. In such cases, a gap S will be formed regardless of whether the window sash 10 is a standard route product or a specialized product, so a sash spacer 30 should be used as appropriate.

[0042] To illustrate the shape of such a sash spacer 30, as shown in Figures 4, 7, and 8, the sash spacer 30 comprises a main body portion 31 which includes a portion sandwiched between the sash frame 12 and the window frame 20 and a portion exposed to the indoor side, and a fixing portion 32 which is fixed to the rising portion 12c of the sash frame 12.

[0043] The main body portion 31 has a front surface 31a and an upper end surface 31b that are exposed to the indoors. When the main body 31 is positioned between the sash frame 12 and the window frame 20, the front surface 31a of the main body 31 is not entirely exposed, but partially shielded by the window frame 20. The upper end surface 31b of the main body 31 is flush (or nearly flush) with the upper end surface of the rising portion 12c, so that no large unevenness is formed between the rising portion 12c and the sash spacer 30.

[0044] Furthermore, the main body portion 31 has a bulging portion 31c formed on the rear side of the main body portion 31 that bulges outwards towards the outdoors and is adjacent to the indoor side of the rising portion 12c. For example, double-sided tape 31d is attached to this bulging portion 31c, allowing the sash spacer 30 to be attached to the indoor side surface of the rising portion 12c. Adhesive may be used instead of double-sided tape 31d.

[0045] The sash spacer 30 of this embodiment corresponds to the window sash 10 shown in Figures 4 to 6. If a different window sash is used, the dimensions of the gap S formed between it and the window frame 20 may differ. To accommodate such cases, the sash spacer 30 may be available in variations with different thickness dimensions of the main body 31. In other words, the sash spacer 30 has multiple variations with different thickness dimensions of the main body 31 depending on the size of the window sash used, and can appropriately accommodate differences in the dimensions of the gap S formed between the sash frame 12 and the window frame 20.

[0046] The fixing portion 32 extends downward from the rear side of the lower end of the main body portion 31. Multiple screw holes 32a are formed in this fixing portion 32 at intervals along its length. The front of the fixing part 32 is located on the rear side relative to the front 31a of the main body part 31. In other words, there is a step between the main body part 31 and the fixing part 32. This step is intended to form a gap S between the front of the fixing part 32 and the window frame 20, and the head of the screw inserted into the screw hole 32a will be accommodated in this gap S.

[0047] A support leg portion 32b is integrally formed at the lower end of the fixing portion 32, protruding outwards to the same extent as the bulge dimension of the bulging portion 31c. The support leg portion 32b is in contact with the indoor side surface of the rising portion 12c and, together with the bulging portion 31c, supports the sash spacer 30. Furthermore, the space between the support leg portion 32b and the bulging portion 31c has a so-called hollow (recessed) structure, which gives it a slight elasticity. If the support legs 32b were not provided, and the entire back surface of the sash spacer 30 were a flat surface with no elasticity, then when screws were inserted through the screw holes 32a to fasten the sash spacer 30 to the rising portion 12c, the force pushing the screws toward the rising portion 12c could cause the upper end of the main body 31 to deform slightly in a direction away from the rising portion 12c. In contrast, the sash spacer 30 of this embodiment has a hollow structure between the support legs 32b and the bulging portion 31c, giving it slight elasticity, so it can absorb the force pushing the screws toward the rising portion 12c. As a result, even when the sash spacer 30 of this embodiment is fastened to the rising portion 12c with screws, the upper end of the main body 31 can be prevented from separating from the rising portion 12c. Moreover, the majority of the hollow structure (hollow area) of the sash spacer 30 is sandwiched between the sash frame 12 and the window frame 20. As a result, the upper end of the main body 31 is difficult to separate from the rising portion 12c.

[0048] Furthermore, the sash spacer 30 may also include an auxiliary leg 33 positioned between the bulging portion 31c and the support leg 32b, with the same protruding dimensions as the bulging portion 31c and the support leg 32b. Providing such an auxiliary leg 33 allows for the addition of a portion that contacts the rising portion 12c while maintaining the hollow structure formed between the support leg 32b and the bulging portion 31c. Therefore, the sash spacer 30 can be attached to the sash frame 12 in a more stable state while ensuring the effect of preventing the upper end of the main body portion 31 from separating from the rising portion 12c due to the hollow structure described above.

[0049] As shown in Figures 4 to 6, the sash spacer 30, configured as described above, is fixed to the rising portions 12c of each frame material 121 to 124 in the sash frame 12 by screw fastening. At this time, each sash spacer 30 is in contact with the first fixing piece 12a of each frame material 121 to 124 in the sash frame 12, but it is not limited to this, and considering the cutting tolerance of the sash spacer 30, it may be arranged in a state where it is spaced apart from the first fixing piece 12a of each frame material 121 to 124 in the sash frame 12.

[0050] Furthermore, each sash spacer 30 is pre-attached to the rising portion 12c of each frame material 121-124 at the factory. This reduces the amount of installation work required on site. Alternatively, the window sash 10 itself may be pre-installed on the wall 1 (architectural wood panel) at the factory.

[0051] Furthermore, the screw fastening positions of each sash spacer 30 are obscured by the window frame 20 (201-203). The window frame 20 may be installed later on site or pre-installed at the factory.

[0052] Figure 6 is a cross-sectional view showing details of the left portion of window 3. An adjustment member 1a, which is a corner piece forming the edge of the opening 2, is attached to the end face of the wall 1 on the side of the opening 2. The left frame member 123 of the sash frame 12 is attached to this adjustment member 1a. A cover plate member 6 is provided on the outdoor side of the adjustment member 1a, and a sealant 4c is filled between the side end of the exterior material 4 and the cover plate member 6. Figure 6 shows a detailed explanation of the left side of window 3, but the right side of window 3 is also assumed to be symmetrically constructed.

[0053] Furthermore, using a standard window sash 10 may necessitate dimensional adjustments, such as the mounting position of the sash frame 12. Therefore, as shown in Figures 5 and 6, for example, when installing the sash frame 12, a thin plate 7 may be interposed between the wall 1 or the adjustment material 1a to make appropriate dimensional adjustments.

[0054] [4. Regarding the effects] This embodiment provides the following excellent effects. In other words, the sash frame 12, which together with the window sash 11 constitutes the window sash 10, is positioned spaced apart from the window frame 20 on the outdoor side, so that a gap S is formed between the sash frame 12 and the window frame 20. A sash spacer 30 is attached to the indoor side of the sash frame 12 to fill this gap S. Therefore, even if a gap S is formed between the sash frame 12 and the window frame 20, for example, when a standard window sash 10 is used, the gap S can be filled by the sash spacer 30. As a result, there is no need to manufacture a new window frame to prevent the formation of a gap S between the sash frame 12 and the window frame 20, which ultimately leads to cost reduction and shortening of construction time for the entire building.

[0055] Furthermore, since a portion of the main body 31 of the sash spacer 30 is exposed to the indoor side, while the other portion of the main body 31 and the fixing portion 32 can be shielded by the window frame 20, the gap S between the sash frame 12 and the window frame 20 can be filled, and the fixing portion 32 can be reliably shielded, resulting in a better appearance. Furthermore, since the sash spacer 30 includes a main body portion 31 that is sandwiched between the sash frame 12 and the window frame 20, a part of the sash spacer 30 is sandwiched between the sash frame 12 and the window frame 20, which improves the installation of the sash spacer 30.

[0056] Furthermore, since a recess (hollow structure) is formed on the sash spacer 30 on the sash frame 12 side, the area of ​​the sash spacer 30 in which the recess is formed has a slight elasticity. The part of the main body 31 that is sandwiched between the sash frame 12 and the window frame 20 and the fixing part 32 overlap with the area in which the recess is formed, and the fixing part 32 has a screw hole 32a through which a screw is passed, so it can absorb the force with which the screw is pushed toward the sash frame 12. In addition, since the main body 31 includes the part that is sandwiched between the sash frame 12 and the window frame 20, the main body 31 is pressed toward the sash frame 12 by the window frame 20. As a result, when the sash spacer 30 is fixed to the sash frame 12 with screws, the upper end of the main body 31 is prevented from separating from the rising part 12c.

[0057] Furthermore, since the end face of the sash spacer 30 located on the central side of the opening 2 and the end face of the rising portion 12c located on the central side of the opening 2 are flush, the integration between the rising portion 12c and the sash spacer 30 can be improved. As a result, the gap S formed between the sash frame 12 and the window frame 20 can be neatly filled by the sash spacer 30.

[0058] Furthermore, since the fixing piece 12a of the sash frame 12 is housed in the recess 20a of the window frame 20, it is possible to prevent interference between the sash frame 12 and the window frame 20. Furthermore, since the bottom of the gap S formed between the sash frame 12 and the window frame 20 is the fixing piece 12a, the sash spacer 30 can be positioned using the fixing piece 12a as a reference, making the installation of the sash spacer 30 easier.

[0059] Furthermore, in recent years, there has been a growing demand for the realization of a decarbonized society through the promotion of carbon neutrality, which aims to reduce carbon dioxide emissions to virtually zero, and for the achievement of the Sustainable Development Goals (SDGs). In the construction industry, efforts are also being made to use wood in buildings to reduce carbon dioxide emissions. The window 3 fitting structure of this embodiment is such that the building is constructed using a panel construction method with wooden building panels, and the window frame 20 is made of wood, thus contributing to the realization of a decarbonized society through the promotion of carbon neutrality and to the achievement of SDGs goals such as Goal 7, Goal 12, and Goal 13.

[0060] [Variation] The embodiments to which the present invention can be applied are not limited to those described above, and can be modified as appropriate without departing from the spirit of the invention. Modifications are described below. The following modifications may be combined as much as possible. Furthermore, in each of the following modifications, elements common to the above-described embodiments are denoted by the same reference numerals, and their descriptions are omitted or simplified.

[0061] Since the sash spacer 30 is installed along the indoor side of the rising portion 12c of the sash frame 12, it is ideal that it be positioned to fit snugly into the rectangular frame-shaped sash frame 12. However, because the sash spacer 30 is extruded and cut using a cutting tool with a thick blade, cutting tolerances inevitably occur, making it extremely difficult to position it to fit snugly into the sash frame 12.

[0062] In contrast, in this embodiment, as shown in Figures 1 to 3, a method is adopted in which horizontal sash spacers 30 are placed between the lower and upper ends of two vertical sash spacers 30. In other words, four sash spacers 30 are arranged in a so-called vertically dominant state. Furthermore, the two horizontal sash spacers 30 are cut to a length slightly shorter than the design dimensions. Furthermore, the two vertical sash spacers 30 are cut to a length as close as possible to the design dimensions, within the range that fits between the first fixing piece 12a of the lower frame material 121 and the first fixing piece 12a of the upper frame material 122 in the sash frame 12.

[0063] To explain in more detail, first, as shown in Figures 1 and 3, the right vertical sash spacer 30 (third sash spacer 30) is screwed to the right frame material 124 of the sash frame 12. In this embodiment, when fastening the right vertical sash spacer 30 (third sash spacer 30) to the right frame material 124 with screws, it is not spaced apart from the first fixing piece 12a, but this is not the only option. For example, the right vertical sash spacer 30 (third sash spacer 30) may be positioned 1 mm away from the first fixing piece 12a of the right frame material 124 in the sash frame 12, and then fastened with screws at that position. In this case, the right vertical sash spacer 30 will protrude 1 mm beyond the rising portion 12c of the right frame material 124.

[0064] Next, the lower lateral sash spacer 30 (first sash spacer 30), which is slightly shorter than the design dimensions, is positioned so that it is in close contact with the first fixing piece 12a of the lower frame material 121 of the sash frame 12, and then secured with screws in that position. As a result, the upper end surface 31b of the lower sash spacer 30 and the upper end surface of the rising portion 12c of the lower frame material 121 are flush. In this case, the lower sash spacer 30 may be moved closer to the vertical sash spacer 30 on the right, so that these sash spacers 30 are in contact with each other.

[0065] Next, the upper lateral sash spacer 30 (second sash spacer 30), which is slightly shorter than the design dimensions, is placed in close contact with the first fixing piece 12a of the upper frame material 122 of the sash frame 12, and is fastened with screws in that position. As a result, the lower end surface 31b of the upper sash spacer 30 and the lower end surface of the rising portion 12c of the upper frame material 122 are flush. In this case, the upper sash spacer 30 may be moved closer to the right vertical sash spacer 30 so that these sash spacers 30 are in contact with each other.

[0066] Next, the left vertical sash spacer 30 (fourth sash spacer 30) is positioned at a distance of 1 mm or more from the first fixing piece 12a of the left frame material 123 in the sash frame 12, and then screwed in at that position. As a result, the left vertical sash spacer 30 protrudes 1 mm or more from the rising portion 12c of the left frame material 123.

[0067] By installing the sash spacers 30 in the procedure described above, the left sash spacer 30, which is installed last, can absorb the cutting tolerances of the right vertical sash spacer 30 and the upper and lower horizontal sash spacers 30.

[0068] Furthermore, if the four sash spacers 30 were to be installed with a horizontal orientation, there is a possibility that a gap S could form between the upper sash spacer 30 and the two vertical sash spacers 30 when, for example, each sash spacer 30 sags due to aging. In contrast, by installing them with a vertical orientation as described above, even if each sash spacer 30 sags due to aging, a gap S is less likely to form between each sash spacer 30, making it easier to maintain a good appearance even when aging occurs. [Explanation of symbols]

[0069] 1 Wall 2 openings 3 windows 10 Window sashes 11 Window shoji 11a frame 111 Frame material (bottom) 112 Frame material (top) 113 Frame material (left) 114 Frame material (right) 12 Window frame 121 Frame material (bottom) 122 Frame material (top) 123 Frame material (left) 124 Frame material (right) 12a First fixed piece 12b Second fixing piece 12c rising section 20 Window frame 201 Window frame material (bottom) 202 Window frame material (top) 203 Window frame material (left) 20a recess 30 sash spacers 31 Main body 31a front 31b Upper end surface 31c bulge 31d Double-sided tape 32 Fixed part 32a Screw hole 32b Support leg 33 Auxiliary legs

Claims

1. Windows are provided in openings formed in the walls of the building. The window comprises a window sash located on the outdoor side of the edge of the opening, and a window frame located on the indoor side of the edge of the opening. The aforementioned window sash comprises a window sash for opening or closing the opening, and a sash frame that holds the window sash in a state where it can be opened and closed and is fixed to the edge of the opening. The aforementioned sash frame is positioned at a distance from the aforementioned window frame toward the outside, A gap is formed between the sash frame and the window frame. A sash spacer is attached to the indoor side of the aforementioned sash frame to fill the gap. The aforementioned sash spacer is, The main body includes a portion sandwiched between the sash frame and the window frame and a portion exposed to the indoor side, It comprises a fixing part located closer to the edge of the opening than the main body and fixed to the sash frame, A window fitting structure characterized in that, of the sash spacer, the portion of the main body that is sandwiched between the sash frame and the window frame and the fixing portion are shielded by the window frame.

2. In the window fitting structure described in claim 1, Of the aforementioned sash spacers, a recess is formed on the surface facing the sash frame, The portion of the main body that is sandwiched between the sash frame and the window frame and the fixing portion overlap with the area in which the recess is formed. The window fitting structure is characterized in that the fixing portion has through holes through which a fixing material is passed.

3. In the window fitting structure described in claim 1, The aforementioned sash frame is formed in the part of the main body of the sash frame that is located most indoors, and has a rising portion that rises from the edge of the opening toward the center of the opening. The aforementioned sash spacer is attached to the indoor side of the rising portion, A window fitting structure characterized in that the end face of the sash spacer located on the central side of the opening and the end face of the rising portion located on the central side of the opening are flush with each other.

4. In the window fitting structure described in claim 1, The aforementioned sash frame is provided with a fixing piece that protrudes from the part of the main body of the sash frame that is located most indoors along the edge of the opening toward the window frame, and is fixed to the edge of the opening. The aforementioned window frame has a recess formed at the end of the window frame closest to the sash frame, which accommodates the fixing piece. A window fitting structure characterized in that the bottom of the gap formed between the sash frame and the window frame is the fixing piece.

5. A window is provided in an opening formed in the wall of a building, The window comprises a window sash located on the outdoor side of the edge of the opening, and a window frame located on the indoor side of the edge of the opening. The aforementioned window sash comprises a window sash for opening or closing the opening, and a sash frame that holds the window sash in a state where it can be opened and closed and is fixed to the edge of the opening. The aforementioned sash frame is positioned at a distance from the aforementioned window frame toward the outside, A gap is formed between the sash frame and the window frame. A sash spacer is attached to the indoor side of the aforementioned sash frame to fill the gap. The aforementioned sash frame is provided with a fixing piece that protrudes from the part of the main body of the sash frame that is located most indoors along the edge of the opening toward the window frame, and is fixed to the edge of the opening. The aforementioned window frame has a recess formed at the end of the window frame closest to the sash frame, which accommodates the fixing piece. A method for constructing a window fitting structure, wherein the bottom of the gap formed between the sash frame and the window frame is the fixing piece, The aforementioned sash frame consists of a lower horizontal frame member, an upper horizontal frame member, a vertical frame member on one side, and a vertical frame member on the other side. The sash spacer consists of a first sash spacer attached to the lower horizontal frame member, a second sash spacer attached to the upper horizontal frame member, a third sash spacer attached to the vertical frame member on one side, and a fourth sash spacer attached to the vertical frame member on the other side. After assembling each frame material in the aforementioned sash frame into a rectangular frame shape, The process of attaching the third sash spacer to the vertical frame member on one side, The process involves attaching the first sash spacer to the lower horizontal frame member while it is in contact with the lower end edge of the third sash spacer and in contact with the fixing piece on the lower horizontal frame member. The process involves attaching the second sash spacer to the upper horizontal frame member while it is in contact with the upper end edge of the third sash spacer and in contact with the fixing piece on the upper horizontal frame member. A method for constructing a window fitting structure, characterized by the step of attaching the fourth sash spacer to the other side vertical frame member after slightly separating it from the fixing piece on the other side vertical frame member and making it in contact with the other side ends of the first sash spacer and the second sash spacer.

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