Resin frames and fittings

The resin frame material with recycled and unused resin portions stabilizes adhesion and reduces waste by using unused resin for adhesive surfaces, addressing composition variability in recycled resin sashes.

JP2026040981APending Publication Date: 2026-03-10YKK AP INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Resin sashes made from recycled resin face challenges in securing adhesion consistency due to varying compositions, leading to potential resin waste generation.

Method used

A resin frame material comprising a frame body with both recycled and unused resin portions, where the adhesive surface is made of unused resin, ensuring consistent adhesion and reducing resin waste.

Benefits of technology

The solution stabilizes adhesion variations while minimizing resin waste by using unused resin for adhesive surfaces, enhancing manufacturing efficiency and design consistency.

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Abstract

To provide a resin frame material capable of suppressing variations in adhesiveness with face materials while suppressing the generation of resin waste. [Solution] The resin upper frame 41, resin lower frame 42 and resin vertical frame 43 each have a frame body 44 having a base 47 made of recycled resin and an inner unused resin portion 48 made of unused resin, and the frame body 44 has a face material bonding surface 52 that is bonded to the face material 30, and the face material bonding surface 52 is made of the inner unused resin portion 48.
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Description

[Technical Field]

[0001] The present invention relates to a resin frame material and a building material. [Background technology]

[0002] Resin sashes are known in the art (see, for example, Patent Document 1). The resin sash described in Patent Document 1 comprises a frame material and a cover material, each made of recycled resin. The frame material comprises a holding surface that holds the edge of the window glass, a first fitting portion provided on the interior side adjacent to the holding surface, and a first clamping portion extending approximately perpendicularly from the holding surface. A cover material is fitted into the first fitting portion. The first clamping portion and holding surface of the frame material and the cover material form a recess that receives the window glass. A pair of airtight materials are provided within the recess. The airtight material on the exterior side is sandwiched between the cover material and the window glass. The airtight material on the interior side is sandwiched between the first clamping portion of the frame material and the window glass. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-216558 Summary of the Invention [Problem to be solved by the invention]

[0004] In a resin sash made from recycled resin as described in Patent Document 1, one way to firmly secure the resin sash to the window glass is to bond the first clamping portion of the frame material to the window glass. However, because recycled resin contains a variety of materials, the composition of the frame material may vary depending on the production lot. This may result in variations in the adhesive strength between the frame material and the window glass.

[0005] The object of the present invention is to provide a resin frame material and fittings that can suppress variations in adhesion to surface materials while suppressing the generation of resin waste. [Means for solving the problem]

[0006] The resin frame material of the present invention comprises a frame material body having a recycled resin portion made of recycled resin and an unused resin portion made of unused resin, the frame material body having a face material adhesive surface that is adhered to a face material, and the face material adhesive surface is made of the unused resin portion.

[0007] The building fixture of the present invention is characterized by comprising a frame body formed in a frame shape, a surface material, and a shoji screen having the above-mentioned resin frame material adhered to the surface material, which opens and closes the opening of the frame body. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide resin frame materials and fittings that can suppress variations in adhesion to surface materials while suppressing the generation of resin waste. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a vertical cross-sectional view showing a vertical sliding window according to an embodiment of the present invention; [Figure 2] FIG. 2 is a cross-sectional view showing the vertical sliding window shown in FIG. [Figure 3] 2 is an enlarged vertical cross-sectional view showing a main part of the vertical sliding window shown in FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0010] [Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 and 2, a vertical sliding window 1 as a fixture comprises a resin frame 2 that is installed in an opening in the building frame, and a shoji screen 3 that is arranged within the frame 2 so that it can be opened and closed to the outside. By operating a handle 91 provided on the shoji screen 3, the vertical sliding window 1 operates a latch mechanism 90 that is formed on the frame 2 and the shoji screen 3, and changes into a state in which it can be opened or kept closed. In the following description, the left-right direction of the vertical sliding window 1 is the X-axis direction, the up-down direction of the vertical sliding window 1 is the Y-axis direction, and the projection direction of the vertical sliding window 1 is the Z-axis direction. The X, Y, and Z-axis directions are perpendicular to each other.

[0011] The frame body 2 is formed in a frame shape and is composed of an upper frame 21, a lower frame 22, and left and right vertical frames 23. The shoji screen 3 comprises a rectangular panel 30 and a frame 40 attached to the outer periphery of the panel 30. The panel 30 comprises three panel plates 31, such as glass panels, and spacers 32 arranged between the edges of each panel plate 31, so that a hollow space is formed between each panel plate 31. The frame 40 is formed in a frame shape and is composed of a resin frame material consisting of an upper resin frame 41, a lower resin frame 42, and left and right resin vertical frames 43. The resin vertical frame 43 shown on the right in Figure 2 is the door-end vertical frame, and the resin vertical frame 43 shown on the left is the hanging-side vertical frame.

[0012] Each of the frames 21, 22, 23 (upper frame 21, lower frame 22, and left and right vertical frames 23) has the same shape and includes a frame body 24 and a shoji airtight material 25. Each frame body 24 is formed into a hollow frame shape using recycled resin. The frame bodies 24 of the upper frame 21 and lower frame 22 are formed to extend in the X-axis direction, while the frame bodies 24 of the left and right vertical frames 23 are formed to extend in the Y-direction. Each frame body 24 is fitted with a shoji airtight material 25 made of soft TPE (thermoplastic elastomer). The shoji airtight material 25 is provided over the entire length of each frame body 24 so as to abut against the visible surface of the shoji screen 3 on the interior side when the shoji screen 3 is closed.

[0013] Next, the detailed structure of each resin frame 41, 42, 43 (resin upper frame 41, resin lower frame 42, and left and right vertical resin frames 43) will be described with reference to Figure 3. Each resin frame 41, 42, 43 has the same shape. Here, the structure of resin lower frame 42 will be described, and the components of resin upper frame 41 and left and right vertical resin frames 43 will be assigned the same reference numerals as the components of resin lower frame 42 and will not be described again.

[0014] The resin bottom frame 42 comprises a frame body 44 as the frame material body, an airtight material 45 for the surface material, and a ledge 46. The frame body 44 includes a base portion 47 as a recycled resin portion, an inner peripheral side unused resin portion 48, and an outer peripheral side unused resin portion 49. The base 47 is formed to extend in the X-axis direction and is formed into a hollow frame shape from recycled resin. The recycled resin is mainly made of PVC. The base 47 includes an indoor facing surface 471, an inner peripheral facing surface 472, an outdoor facing surface 473, an outer peripheral facing surface 474, a first partition 475, a second partition 476, a third partition 477, and a fourth partition 478.

[0015] The inner peripheral projection surface portion 472 includes a first inner peripheral projection surface portion 472A extending from the upper end of the indoor side sight surface portion 471 to the outdoor side, a second inner peripheral projection surface portion 472B extending downward from the outdoor side end of the first inner peripheral projection surface portion 472A, and a third inner peripheral projection surface portion 472C connecting the lower end of the second inner peripheral projection surface portion 472B to the upper end of the outdoor side sight surface portion 473. On the outdoor side of the third inner peripheral projection surface portion 472C, a setting block engagement portion 472D with which the setting block 33 engages and a pressing edge engagement portion 472E with which the pressing edge 46 engages are provided.

[0016] The outer periphery-side projection surface 474 includes a first outer periphery-side projection surface 474A extending from the lower end of the interior projection surface 471 toward the exterior, a second outer periphery-side projection surface 474B extending downward from the exterior end of the first outer periphery-side projection surface 474A, and a third outer periphery-side projection surface 474C connecting the lower end of the second outer periphery-side projection surface 474B to the lower end of the exterior projection surface 473. A recess 474D is provided on the exterior side of the interior end of the first outer periphery-side projection surface 474A, recessing upward. A frame airtight material 50 made of soft PVC is integrally attached to the lower end of the second outer periphery-side projection surface 474B. The frame airtight material 50 is provided along the entire length of the base 47 so as to abut against the lower frame 22 when the shoji screen 3 is closed.

[0017] The first partition 475 extends downward from a portion of the third inner peripheral projection surface 472C facing the room and connects to the first outer peripheral projection surface 474A. The second partition 476 extends obliquely upward from the outdoor end of the first outer peripheral projection surface 474A and connects to the third inner peripheral projection surface 472C. The third partition 477 is provided at a position closer to the room than the second partition 476, connecting the first outer peripheral projection surface 474A and the third inner peripheral projection surface 472C and extending in the vertical direction. The fourth partition 478 extends from a portion of the upper end of the second outer peripheral projection surface 474B facing the room outside and connects to the outdoor projection surface 473.

[0018] The inner circumference side unused resin portion 48 is provided over the entire length of the base portion 47 and is made of unused hard PVC (virgin resin). The inner circumference side unused resin portion 48 includes a first inner circumference side unused resin layer 481 and a second inner circumference side unused resin layer 482.

[0019] The first inner circumference side unused resin layer 481 is provided in a layered form on the surface of the second inner circumference side expected surface portion 472B on the side of the first inner circumference side expected surface portion 472A. Of the surface of the first inner circumference side unused resin layer 481, an upper end region forms the airtight material placement surface 51, and a central region forms the surface material bonding surface 52. An airtight material 45 for the face material, made of unused soft PVC, is integrally provided on the airtight material placement surface 51. The airtight material 45 for the face material is provided so as to abut the visible surface of the face material 30 on the indoor side over the entire length of the base 47. The face material adhesive surface 52 is bonded to the end of the facing surface on the indoor side of the face material 30 via adhesive 92 over the entire length of the base 47. In this way, the face material adhesive surface 52, which is made of the first inner peripheral unused resin layer 481, whose composition does not vary depending on the production lot, and the face material 30 are fixed together with adhesive 92, which reduces the generation of resin waste and also reduces the variation in the adhesion between the resin bottom frame 42 and the face material 30. Furthermore, because the face material adhesive surface 52 is made of the first inner peripheral unused resin layer 481 provided on the second inner peripheral facing surface portion 472B made of recycled resin, it is possible to reduce the amount of unused resin used and increase the amount of recycled resin used, thereby further reducing the generation of resin waste.

[0020] The second inner circumference side unused resin layer 482 is provided in a layered form on the surface of the first inner circumference side exposed surface portion 472A on the side of the second inner circumference side exposed surface portion 472B so as to be continuous with the first inner circumference side unused resin layer 481. The surface of the second inner circumference side unused resin layer 482, together with an exposed region on the surface of the first inner circumference side exposed surface portion 472A where the second inner circumference side unused resin layer 482 is not provided, is formed so as to constitute the planar sheet material adhesive surface 53. The surface of the second inner peripheral side unused resin layer 482 constitutes an airtight material side region 54 including the edge of the sheet material bonding surface 53 on the airtight material placement surface 51 side.

[0021] The outer peripheral side unused resin portion 49 is made of unused hard PVC and includes a first outer peripheral side unused resin layer 491 and a second outer peripheral side unused resin layer 492. First outer periphery side unused resin layer 491 is provided in a layer form on the surface of first outer periphery side visible surface portion 474A excluding the indoor side surface of the indoor side wall portion that constitutes recess 474D. The second outer peripheral side unused resin layer 492 is provided over the entire area on the surface of the second outer peripheral side visible surface portion 474B where the frame body airtight material 50 is not provided, so as to be continuous with the first outer peripheral side unused resin layer 491. The surface of the outer peripheral unused resin portion 49 constitutes an open-time exposed area 55 that is exposed when the shoji screen 3 is open but not when closed. The surface of the third outer peripheral visible surface portion 474C, which is not provided with the outer peripheral unused resin portion 49, and the open-time exposed area 55 constitute the outer peripheral visible surface. By forming the open-time exposed area 55 from the outer peripheral unused resin portion 49 provided on the outer peripheral visible surface portion 474 made of recycled resin in this way, the generation of resin waste can be further reduced and a decrease in the design of the vertical sliding window 1 can be prevented.

[0022] The base 47, inner unused resin portion 48, outer unused resin portion 49, face material airtight material 45, and frame airtight material 50 having the above-described configuration are integrally formed by extrusion molding. Because the airtight material placement surface 51, face material bonding surface 52, and airtight material side region 54 are made up of a single inner unused resin portion 48, they can be more easily provided on the resin bottom frame 42 than if they were made up of separate pieces of unused PVC. In particular, the use of extrusion molding makes it easier to manufacture the resin bottom frame 42. Furthermore, since the virgin resin constituting the inner peripheral virgin resin portion 48 and the outer peripheral virgin resin portion 49 is made of the same PVC as the main material of the base portion 47, extrusion properties can be improved. Furthermore, since the frame body 44 and the surface material airtight material 45 are integrally formed, the task of placing the surface material airtight material 45 on the frame body 44 is not required, making it easier to manufacture the resin lower frame 42.

[0023] The flange 46 is formed to the same length as the resin bottom frame 42 and is made of unused hard PVC. The base end of the flange 46 is engaged with the flange engagement portion 472E of the resin bottom frame 42. The tip of the flange 46 is provided with a bead material 461 that abuts against the exterior facing surface of the face material 30.

[0024] A sheet material 6 is adhered to the surface of the resin stile 42 that is exposed when the shoji screen 3 is closed. The sheet material 6 is, for example, a resin laminate film, and is provided with a pattern or color to enhance the design of the vertical sliding window 1. The sheet material 6 comprises an indoor-side sheet material 61 adhered to the indoor side of the resin stile 42, an outdoor-side sheet material 62 adhered to the outdoor side of the resin stile 42, and an edge-side sheet material 63 adhered to the edge 46. In this way, by adhering the indoor-side sheet material 61, the outdoor-side sheet material 62, and the edge-side sheet material 63 to the surfaces that include the sheet material adhesive surface 53 and that are exposed to the indoor and outdoor sides when the shoji screen 3 is closed, the design of the vertical sliding window 1 can be further enhanced.

[0025] The surface of the indoor-side sheet material 61 has the same shape as the combined shape of the sheet material adhesive surface 53, the surface of the indoor-side visible surface 471, and the indoor-side surface and underside of the indoor-side wall portion that forms the recess 474D on the surface of the first outer peripheral visible surface 474A, and is continuously bonded across these surfaces. In this way, when bonding the indoor-side sheet material 61 to the sheet material adhesive surface 53, even if the indoor-side sheet material 61 is cut at a position on the indoor side (toward the extension direction of the sheet material adhesive surface 53) relative to the boundary with the airtight material placement surface 51 on the sheet material adhesive surface 53 in order to avoid damaging the surface material airtight material 45, the first inner peripheral visible surface 472A made of recycled resin, which contains various materials and may vary in color depending on the production lot, is not exposed, and instead the airtight material side region 54 made of the second inner peripheral unused resin layer 482, which does not vary in color depending on the production lot, is exposed. This makes it easier to prevent a decrease in the design of the vertical sliding window 1 than to cut the indoor-side sheet material 61 at the boundary between the sheet material adhesive surface 53 and the airtight material arrangement surface 51, or to adhere the indoor-side sheet material 61 so that this boundary coincides with the edge of the indoor-side sheet material 61. Furthermore, because the airtight material side region 54 is formed from the second inner circumference unused resin layer 482 provided on the first inner circumference visible surface portion 472A made of recycled resin, it is possible to reduce the amount of unused resin used and increase the amount of recycled resin used, thereby further reducing the generation of resin waste. The surface of the outdoor sheet material 62 has the same shape as the upper surface of the outdoor wall portion that constitutes the pressing edge engagement portion 472E, as well as the combined surfaces of the outdoor visible surface portion 473 and the third outer peripheral visible surface portion 474C, and is continuously adhered across the entirety of these surfaces. The surface of the edge-side sheet material 63 has the same shape as the surface of the edge 46 exposed to the outside of the room and the surface facing the upper surface of the wall portion on the outside of the room that constitutes the edge engagement portion 472E, and is adhered to the entire exposed surface.

[0026] [Variations] The first inner peripheral side unused resin layer 481 including the face material adhesive surface 52 is provided in a layered form on the second inner peripheral side exposed surface portion 472B made of recycled resin, but the portion of the second inner peripheral side exposed surface portion 472B on the first inner peripheral side exposed surface portion 472A side that includes the face material adhesive surface 52 may be made of only virgin PVC, and the remaining portion may be made of recycled resin. The second inner peripheral side unused resin layer 482 including the airtight material side region 54 is provided in a layered form on the first inner peripheral side exposed surface portion 472A made of recycled resin, but the portion of the first inner peripheral side exposed surface portion 472A on the second inner peripheral side exposed surface portion 472B side that includes the airtight material side region 54 may be made of only virgin PVC, and the remaining portion may be made of recycled resin. The inner circumference unused resin portion 48 may be composed only of the first inner circumference unused resin layer 481, and the frame body 44 may not have an airtight material side area 54 composed of unused PVC, or the inner circumference unused resin portion 48 may be composed only of the portion including the face material bonding surface 52 in the first inner circumference unused resin layer 481, and the frame body 44 may not have an airtight material placement surface 51 composed of unused PVC. The airtight material placement surface 51, the surface material bonding surface 52 and the airtight material side region 54 are made up of a single inner peripheral unused resin portion 48, but these may also be made up of separate unused PVC, or only the airtight material placement surface 51 and the surface material bonding surface 52 may be made up of a single unused PVC, or only the airtight material placement surface 51 and the airtight material side region 54 may be made up of a single unused PVC. Although the inner peripheral unused resin portion 48 is made of unused PVC, it may be made of unused resin other than PVC, such as acrylic. The frame body 44 does not need to have an outer peripheral unused resin portion 49, and the open-time exposed area 55 made of unused PVC does not need to be provided on the frame body 44, or the first and second outer peripheral visible surface portions 474A, 474B including the open-time exposed area 55 on the outer peripheral visible surface portion 474 may be made of unused PVC only. The thickness of at least one of the inner peripheral unused resin portion 48 and the outer peripheral unused resin portion 49 may be approximately the same as that of the base portion 47 or may be thicker than that of the base portion 47 . For example, in a configuration in which a resin frame material is bonded to the outer peripheral surface (visible surface) of a surface material made of glass, resin, metal, etc., the surface material bonding surface of the resin frame material may be formed of an unused resin portion. Although the description has been given of a vertical sliding window 1 as a fixture, other types of windows may also be used, such as horizontal sliding windows, casement windows such as projection windows and hinged windows, or sliding windows such as double sliding windows, single sliding windows and casement windows.

[0027] [Summary of the invention] The resin frame material of the present invention comprises a frame material body having a recycled resin portion made of recycled resin and an unused resin portion made of unused resin, the frame material body having a face material adhesive surface that is adhered to a face material, and the face material adhesive surface is made of the unused resin portion. According to the present invention, the face material adhesion surface is formed from unused resin, which makes it possible to suppress variations in the adhesiveness between the resin frame material and the face material while suppressing the generation of resin waste.

[0028] In the resin frame material of the present invention, it is preferable that the face material adhesive surface is constituted by the unused resin portion provided in a layer form on the recycled resin portion. According to the present invention, the generation of resin waste can be further suppressed.

[0029] In the resin frame material of the present invention, it is preferable that the frame material body is provided with an airtight material that can abut against the visible surface of the face material, and that the frame material body has an airtight material placement surface on which the airtight material is provided and a sheet material adhesive surface to which a sheet material is adhered, the sheet material adhesive surface is arranged to extend from the edge of the airtight material placement surface in a direction away from the airtight material, and the airtight material side region of the sheet material adhesive surface including the edge on the airtight material placement surface side is composed of the unused resin portion. According to the present invention, even if the sheet material is cut at a position closer to the extension direction of the sheet material adhesive surface than the boundary with the airtight material placement surface in order to avoid damaging the airtight material, the recycled resin is not exposed, and the airtight material side area made of unused resin is exposed.This makes it easier to work and prevents a decrease in the design of the resin frame material.

[0030] In the resin frame material of the present invention, it is preferable that the face material adhesive surface, the airtight material placement surface, and the airtight material side area are composed of a single unused resin part arranged in a continuous layer on the recycled resin part. According to the present invention, the face material bonding surface, the airtight material placement surface, and the airtight material side area can be easily provided on the resin frame material.

[0031] In the resin frame material of the present invention, the virgin resin is preferably PVC. According to the present invention, extrudability can be improved when extruding a resin frame material.

[0032] The fixture of the present invention comprises a frame body formed in a frame shape, a surface material, and a shoji screen having the above-mentioned resin frame material adhered to the surface material, which opens and closes an opening in the frame body. According to the present invention, it is possible to provide a fitting that suppresses the generation of resin waste while suppressing variations in the adhesiveness between the resin frame material and the surface material.

[0033] In the building fixture of the present invention, it is preferable that the frame material main body has an outer peripheral visible surface that constitutes the outer peripheral surface of the shoji screen, the outer peripheral visible surface has an open-time exposed area that is exposed when the shoji screen is opened, the surface material adhesive surface and the open-time exposed area are made of the unused resin part that is layered on the recycled resin part, and the parts of the frame material main body other than the unused resin part are made of the recycled resin part. According to the present invention, the generation of resin waste can be further reduced, and the deterioration of the design of building materials can be suppressed. [Explanation of symbols]

[0034] 1...vertical sliding window (door and window fixture), 2...frame, 3...shoji screen, 30...face material, 41...resin upper frame (resin frame material), 42...resin lower frame (resin frame material), 43...resin vertical frame (resin frame material), 44...frame body (frame body), 45...airtight material for face material (airtight material), 47...base (recycled resin part), 48...unused resin part on inner circumference (unused resin part), 49...unused resin part on outer circumference (unused resin part), 51...airtight material placement surface, 52...face material bonding surface, 53...sheet material bonding surface, 54...airtight material side area, 55...exposed area when open, 61...indoor side sheet material (sheet material).

Claims

1. a frame material body having a recycled resin portion made of recycled resin and a virgin resin portion made of virgin resin; The frame body has a surface material adhering surface that is adhered to a surface material, The resin frame material, wherein the surface material bonding surface is made up of the unused resin portion.

2. The resin frame material according to claim 1, The face material adhesive surface is composed of the virgin resin portion provided in a layer on the recycled resin portion.

3. The resin frame material according to claim 1, An airtight material that can abut against the visible surface of the face material is provided, The frame material body includes an airtight material placement surface on which the airtight material is provided, and a sheet material adhesion surface to which a sheet material is adhered, the sheet material adhesive surface is provided so as to extend from an edge of the airtight material placement surface in a direction away from the airtight material, A resin frame material, wherein an airtight material side region including an edge on the airtight material placement surface side of the sheet material adhesive surface is composed of the unused resin portion.

4. The resin frame material according to claim 3, A resin frame material in which the surface material adhesive surface, the airtight material placement surface, and the airtight material side area are composed of a single unused resin part arranged in a continuous layer on the recycled resin part.

5. The resin frame material according to claim 1, The resin frame material, wherein the unused resin portion is PVC.

6. a frame body formed in a frame shape; A fitting comprising a surface material and a shoji screen having the resin frame material according to claim 1 adhered to the surface material, the shoji screen opening and closing the opening of the frame body.

7. In the fitting according to claim 6, The frame material body has an outer peripheral surface that constitutes the outer peripheral surface of the shoji screen, The outer peripheral visible surface has an exposed area when the shoji screen is opened, the face material adhesive surface and the exposed area when opened are constituted by the unused resin portion provided in a layer on the recycled resin portion, The portion of the frame material body other than the unused resin portion is made up of the recycled resin portion.

Citation Information

Patent Citations

  • Method for producing resin-made sash

    JP2016216558A