Opening building material
The opening building material achieves high watertightness and low manufacturing costs by incorporating a frame with protrusions and step portions, and a shoji with fins that direct rainwater away from internal tight materials, eliminating the need for external tight materials.
Patent Information
- Application Number
- JP2023183605
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-10-26
- Publication Date
- 2025-05-13
AI Technical Summary
Existing opening building materials with frames that can be opened and closed face challenges in achieving high watertightness while maintaining a low manufacturing cost.
The opening building material features a frame and a shoji with a semi-closed space between them, where the frame has protrusions and step portions, and the shoji has fins that direct rainwater away from the internal tight material, eliminating the need for external tight materials and allowing for cost-effective manufacturing.
This configuration significantly enhances watertightness by preventing rainwater from reaching the internal tight material, while also reducing manufacturing costs by eliminating the need for external tight materials and facilitating easy drainage and stopping of water.
Smart Images

Figure 2025073127000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a building material for openings that is installed in openings of buildings. [Background technology]
[0002] For building materials for openings, such as shoji screens set into a frame so that they can be opened and closed, high watertightness is required. Summary of the Invention [Problem to be solved by the invention]
[0003] In view of the above-mentioned circumstances, an object of the present invention is to provide a building material for openings that can improve watertightness and can be manufactured inexpensively. [Means for solving the problem]
[0004] In order to achieve the above object, the building material for openings according to the invention described in claim 1 comprises a frame and a screen, and has a semi-enclosed space between the frame and screen that is closed on the inside of the room with a weatherstripping material, and has a passageway on the outside of the room that leads from the outside to the semi-enclosed space in the inner and outer periphery directions, the frame has a protrusion that protrudes toward the outside of the room at the inner end of the facing surface that constitutes the passageway, and has a step that protrudes from the outer end of the facing surface to the outside of the passageway, and the screen has a fin that faces the facing surface on the frame side that constitutes the passageway and protrudes toward the outer or inner side.
[0005] The building material for openings according to the invention described in claim 2 comprises a frame and a screen, and has a semi-enclosed space between the frame and the screen that is closed on the inside of the room with a tight material, and has an indoor-outdoor passage on the outside of the room that leads from the outside to the semi-enclosed space, the frame has fins that protrude toward the inner periphery on the visible surface that forms the passage, and the inner periphery end of the fin has a protrusion that protrudes toward the outside of the room, the fins protrude more inward than the visible surface on the screen side that forms the passage, and the screen has fins that protrude toward the outer periphery or inner periphery on the indoor side end of the visible surface that forms the passage. Effect of the Invention
[0006] The opening construction material according to the invention described in claim 1 comprises a frame and a screen, a semi-closed space between the frame and screen that is closed by waterproofing material on the inside of the room, and a passageway on the outside of the room that leads from the outside to the semi-closed space in the inner and outer periphery directions, the frame has a protrusion that protrudes toward the outside of the room at the inner periphery end of the visible surface that constitutes the passageway, and a step that protrudes from the outer periphery end of the visible surface to the outside of the passageway, and the screen has fins that face the visible surface of the frame that constitutes the passageway and protrude toward the outer or inner periphery, preventing rainwater from reaching the waterproofing material on the inside of the room, thereby increasing watertightness. Moreover, waterproofing material is not required on the outside of the room, and it can be manufactured inexpensively by stopping and draining water depending on the shape of the frame and the outside part of the screen.
[0007] The construction material for openings according to the invention described in claim 2 comprises a frame and a screen, a semi-closed space between the frame and screen that is closed by waterproofing material on the indoor side, and a passageway leading from the outdoor side to the semi-closed space from the outdoor side, the frame has fins protruding toward the inner periphery on the visible surface that constitutes the passageway, the inner periphery end of the fins has a protrusion protruding toward the outdoor side, the fins protrude toward the inner periphery more than the visible surface that constitutes the passageway on the screen side, and the screen has fins protruding toward the outer periphery or inner periphery on the indoor side end of the visible surface that constitutes the passageway, thereby preventing rainwater from reaching the waterproofing material on the indoor side, thereby improving watertightness. Moreover, waterproofing material is not required on the outdoor side, and the construction can be manufactured inexpensively by stopping and draining water depending on the shape of the frame and the outdoor part of the screen. [Brief description of the drawings]
[0008] [Figure 1] 1 is a vertical cross-sectional view showing a first embodiment of a building material for openings according to the present invention. [Diagram 2] 2 is an enlarged longitudinal sectional view showing the lower frame side of FIG. 1. [Diagram 3] FIG. 2 is a cross-sectional view of the building material for openings according to the first embodiment. [Figure 4] FIG. 4 is an enlarged cross-sectional view of the left side of FIG. [Diagram 5] FIG. 2 is a front view of the building material for openings of the first embodiment, facing the interior side. [Figure 6] FIG. 2 is a vertical cross-sectional view showing a second embodiment of a building material for openings according to the present invention. [Figure 7] 7 is an enlarged longitudinal sectional view showing the lower frame side of FIG. 6. [Figure 8] FIG. 11 is a cross-sectional view of a building material for openings according to a second embodiment. [Figure 9] FIG. 9 is an enlarged cross-sectional view of the left side of FIG. 8. [Figure 10] FIG. 2(a) is a vertical cross-sectional view showing an example of a conventional building material for openings, and FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 5 show a first embodiment of the building material for openings of the present invention. This building material for openings is applied to a vertical sliding window for a house, and as shown in Figures 1, 3, and 5, it comprises a frame 1 to be attached to an opening in a structural frame, and a paper screen 2 supported on the frame 1 so as to be freely opened and closed.
[0010] 1, 3 and 5, the frame 1 is composed of an upper frame 16, a lower frame 17 and left and right vertical frames 18, 18. The upper frame 16, the lower frame 17 and the vertical frames 18 are each composed of a metal frame section 19 made of an aluminum alloy extrusion and an indoor side resin frame section 20 made of a resin extrusion attached to the inner periphery of the metal frame section 19 on the indoor side.
[0011] As shown in Figures 1 and 3, the shoji screen 2 is framed by an upper frame 21, a lower frame 22, and left and right vertical frames 23, 23, and the double-glazed glass 25 is fitted into a glass groove 24 formed on the inner circumference of each frame 21, 22, 23 via a glass channel 26. The interior side wall 27 of each frame 21, 22, 23 is made of a plastic material, and the other parts are made of aluminum materials. When viewed from the inside of the room, each frame 21, 22, 23 of the shoji screen 2 is hidden by the interior side resin frame part 20 of the frame 1 and cannot be seen. In this way, the frame 1 hides the frames 21, 22, and 23 of the shoji screen 2 by the indoor side resin frame portion 20, and the indoor side walls 27 of the frames 21, 22, and 23 of the shoji screen 2 are formed from resin shaped material, thereby improving the insulation performance and preventing condensation on the indoor side.
[0012] As shown in Figure 2, the bottom frame 17 has a weatherstripping material 3 on the outdoor side of the indoor side resin frame part 20 that abuts the indoor side of the bottom frame 22, and has no weatherstripping material on the outdoor side between the bottom frame 17 and the bottom frame 22, but has a passage 5 in the inner and outer periphery directions that communicates with the outdoors. As a result, a semi-closed space 4 is formed between the bottom frame 17 and the bottom frame 22, with the indoor side closed by the weatherstripping material 3. The lower frame 17 has a protrusion 7 that protrudes toward the outside of the room at the inner circumferential end of the facing surface 6 that constitutes the passage 5. The lower frame 17 also has a step 8 that protrudes from the outer circumferential end of the facing surface 6 to the outside of the passage 5. The upper surface of the step 8 is inclined downward toward the outside of the room. The lower frame 22 faces the facing surface 6 on the side of the frame 1 that constitutes the passage 5, and has fins 9 that protrude toward the inner periphery.
[0013] Because the bottom frame 17 and bottom sill 22 of this opening building material are constructed as described above, it is possible to prevent rainwater from entering on the outside of the space between the frame and the screen, demonstrating high watertightness, even if there is no watertight material on the outside of the room. As shown in Figure 10(a), if conventional building materials for openings do not have watertight material on the outside of the room, rainwater will seep in between the bottom frame 90 and the bottom sill 91, as shown by arrow 92 in the figure, and the rainwater will reach the watertight material 93 on the inside of the room, so high watertightness cannot be achieved. In contrast, as shown in Fig. 2, when wind and rain blow into the gap between the frame and the screen during stormy weather, as indicated by the arrow 29 in the figure, rainwater 28a seeping in from the outside of the room with the wind and rain is blocked by the visible surface 6 on the frame 1 side of the passage 5 in the inner and outer periphery direction formed between the frame and the screen, and rainwater 28b that rises along the visible surface 6 is blocked by the protrusion 7 formed on the inner periphery end of the visible surface 6 and falls downward. Also, rainwater 28c seeping in along the lower edge of the bottom frame 22 leaves the bottom frame 22 at the corner with the fin 9 protruding toward the inner periphery and falls downward. In this way, the rainwater is stopped and drained on the outside of the semi-closed space 4, so that it does not reach the waterproofing material 3 on the inside of the room, resulting in high watertightness.
[0014] As shown in Figure 4, the vertical frame 18 has a weatherstripping material 3 on the outdoor side of the indoor side resin frame part 20 that abuts against the indoor side of the vertical frame 23, and the outdoor side between the vertical frame 18 and the vertical frame 23 does not have a weatherstripping material, but has a passage 10 in the indoor / outdoor direction that communicates with the outdoors. As a result, a semi-closed space 4 is formed between the vertical frame 18 and the vertical frame 23, with the indoor side closed by the weatherstripping material 3. The vertical frame 18 has fins 12 that protrude inward from the visible surface 11 that constitutes the passage 10, and the inner end of the fins 12 has protrusions 13 that protrude toward the outside of the room. The fins 12 protrude inward beyond the visible surface 14 on the shoji 2 side that constitutes the passage 10. The vertical frame 23 has a fin 15 that protrudes toward the inner periphery at the indoor end of the visible surface portion 14 that forms the passageway.
[0015] Because the vertical frame 18 and vertical stile 23 of this opening building material are constructed as described above, even if there is no watertight material on the outside of the room, it is possible to prevent rainwater from entering between the frame and the screen, thereby achieving high watertightness. As shown in Figure 10(b), if conventional building materials for openings do not have watertight material on the outside of the room, rainwater will seep in between the vertical frame 94 and the vertical frame 95, as shown by arrow 92 in the figure, and the rainwater will reach the watertight material 93 on the inside of the room, so high watertightness cannot be achieved. In contrast, as shown in Fig. 4, when wind and rain blow into the gap between the frame and the screen during stormy weather, as indicated by the arrow 29 in the figure, rainwater 28d that seeps in from the outside of the room due to wind and rain is blocked by the fins 12 that protrude from the inner periphery of the visible surface 11 on the frame 1 side of the passage 10 in the indoor / outdoor direction formed between the frame and the screen, and rainwater 28e that moves to the inner periphery along the fins 12 is blocked by the protrusions 13 formed on the inner periphery end of the fins 12 and falls down. Also, rainwater 28f that seeps in along the outer periphery edge of the vertical frame 23 goes around to the indoor side of the fins 15 that protrude toward the inner periphery, accumulates at the tips of the fins, and falls down under its own weight. In this way, the rainwater is stopped and drained on the outdoor side of the semi-closed space 4, so that high watertightness is achieved because the rainwater does not reach the waterproofing material 3 on the indoor side.
[0016] 6 to 9 show a second embodiment of the building material for openings of the present invention. As in the first embodiment, this building material for openings is applied to a vertical sliding window for a house, and as shown in Figs. 6 and 8, it includes a frame 1 to be attached to an opening in a structural frame, and a paper screen 2 supported on the frame 1 so as to be freely opened and closed.
[0017] As shown in Figure 7, the bottom frame 17 has a weatherstripping material 3 on the outdoor side of the indoor side resin frame part 20 that abuts the indoor side of the bottom frame 22, and the outdoor side between the bottom frame 17 and the bottom frame 22 does not have a weatherstripping material, but has a passage 5 in the inner and outer periphery directions that communicates with the outdoors. As a result, a semi-closed space 4 is formed between the bottom frame 17 and the bottom frame 22, with the indoor side closed by the weatherstripping material. The lower frame 17 has a protrusion 7 that protrudes toward the outside of the room at the inner circumferential end of the facing surface 6 that constitutes the passage 5. The lower frame 17 also has a step 8 that protrudes from the outer circumferential end of the facing surface 6 to the outside of the passage 5. The upper surface of the step 8 is inclined downward toward the outside of the room. The lower frame 22 faces the facing surface 6 on the side of the frame 1 that constitutes the passage 5, and has fins 9 that protrude toward the outer periphery.
[0018] Because the bottom frame 17 and bottom sill 22 of this opening building material are constructed as described above, it is possible to prevent rainwater from entering on the outside of the space between the frame and the screen, and to exhibit high watertightness, just like in the first embodiment, even if there is no watertight material on the outside of the room. That is, as shown in Fig. 7, when wind and rain blow into the gap between the frame and the screen during stormy weather as indicated by the arrow 29 in the figure, rainwater 28a seeping in from the outside of the room with the wind and rain is blocked by the visible surface 6 on the frame 1 side of the passage 5 in the inner and outer periphery direction formed between the frame and the screen, and rainwater 28b that rises along the visible surface 6 is blocked by the protrusion 7 formed on the inner periphery end of the visible surface 6 and falls downward. Also, rainwater 28c seeping in along the lower edge of the bottom frame 22 is blocked by the fin 9 protruding toward the outer periphery and falls downward. In this way, the rainwater is stopped and drained on the outside of the semi-closed space, so that high watertightness is achieved because it does not reach the waterproofing material 3 on the inside of the room.
[0019] As shown in Figure 9, the vertical frame 18 has a weatherstripping material 3 on the outdoor side of the indoor side resin frame part 20 that abuts against the indoor side of the vertical frame 23, and the outdoor side between the vertical frame 18 and the vertical frame 23 does not have a weatherstripping material, but has an indoor-outdoor passage 10 that communicates with the outdoors. As a result, a semi-closed space 4 is formed between the vertical frame 18 and the vertical frame 23, with the indoor side closed by the weatherstripping material 3. The vertical frame 18 has fins 12 that protrude inward from the visible surface 11 that forms the passageway, and the inner end of the fins 12 has protrusions 13 that protrude outward from the room. The fins 12 protrude inward beyond the visible surface 14 on the shoji 2 side that forms the passageway 10. The vertical frame 23 has a fin 15 that protrudes toward the outer periphery at the indoor end of the visible surface portion 14 that forms the passageway 10.
[0020] Because the vertical frame 18 and vertical stile 23 of this opening building material are constructed as described above, it is possible to prevent rainwater from entering on the outside of the space between the frame and the screen, and to exhibit high watertightness, just like in the first embodiment, even if there is no watertight material on the outside of the room. That is, as shown in Fig. 9, when wind and rain blow into the gap between the frame and the screen during bad weather, as indicated by the arrow 29 in the figure, rainwater 28d that seeps in from the outside of the room due to the wind and rain is blocked by the fins 12 that protrude from the inner periphery of the visible surface 11 on the frame 1 side of the passage 10 in the indoor / outdoor direction formed between the frame and the screen, and rainwater 28e that moves to the inner periphery along the fins 12 is blocked by the projections 13 formed on the inner periphery end of the fins 12 and falls down. Also, rainwater 28f that seeps in along the outer periphery edge of the vertical frame 23 is blocked by the fins 15 that protrude toward the outer periphery and falls down. In this way, the rainwater is stopped and drained on the outside of the semi-closed space 4, so that it does not reach the waterproofing material 3 on the indoor side, resulting in high watertightness.
[0021] As described above, this opening construction material (first and second embodiments) comprises a frame 1 and a screen 2, a semi-closed space 4 between the frame 1 and the screen 2, closed by a waterproofing material 3 on the indoor side, and a passage 5 on the indoor side leading from the outdoor side to the semi-closed space 4 in the inner and outer periphery directions, the frame 1 has a protrusion 7 protruding toward the outdoor side at the inner periphery end of the facing surface 6 constituting the passage 5, and a step 8 protruding from the outer periphery end of the facing surface 6 to the outdoor side of the passage 5, and the screen 2 has a fin 9 facing the facing surface 6 on the frame 1 side constituting the passage 5 and protruding toward the outer or inner periphery (see Figs. 2 and 7), which prevents rainwater from reaching the waterproofing material 3 on the indoor side, thereby improving watertightness. Moreover, waterproofing material is not required on the outdoor side, and water can be stopped and cut off by the shape of the outdoor side parts of the frame 1 and the screen 2, making it possible to manufacture it at low cost.
[0022] This opening building material (first and second embodiments) includes a frame 1 and a screen 2, a semi-closed space 4 between the frame 1 and the screen 2 that is closed by a waterproofing material 3 on the indoor side, and an indoor-outdoor passage 10 that leads from the outdoor side to the semi-closed space 4, the frame 1 has a fin 12 that protrudes toward the inner circumference on the visible surface 11 that constitutes the passage 10, and the inner circumference end of the fin 12 has a protrusion 13 that protrudes toward the outdoor side, the fin 12 protrudes toward the inner circumference side more than the visible surface 14 on the screen 2 side that constitutes the passage 10, and the screen 2 has a fin 15 that protrudes toward the outer circumference or inner circumference on the indoor side end of the visible surface 14 that constitutes the passage 10 (see Figs. 4 and 9), which prevents rainwater from reaching the waterproofing material 3 on the indoor side, thereby improving watertightness. Moreover, waterproofing material is not required on the outdoor side, and the frame 1 and the screen 2 can be manufactured inexpensively by stopping and draining water depending on the shape of the outdoor part.
[0023] In the first embodiment of the building material for openings, the fins 9, 15 of the shoji screen 2 are arranged to protrude toward the inner periphery (see Figures 2 and 4), so that the fins 9, 15 do not get in the way when the shoji screen 2 is opened and cleaning is easy. In the building material for openings of the second embodiment, the fins 9, 15 of the screen 2 are provided to protrude toward the outer periphery (see Figs. 7 and 9), so that the fins 9, 15 can block wind and rain, further improving the waterproofing properties.
[0024] The present invention is not limited to the above-described embodiment. The cross-sectional shape and material of the frame and the cross-sectional shape and material of the frame of the shoji screen can be changed as appropriate. The present invention is not limited to vertical sliding windows, but can also be applied to horizontal sliding windows, casement windows, etc. [Explanation of symbols]
[0025] 1 slot 2 Shoji Screen 3 Tight material 4 Semi-enclosed space 5. Inner and outer perimeter passages 6 Migashi surface section 7 protrusions 8 steps 9. Fin 10 Indoor and outdoor corridors 11 Projection surface (frame side) 12 Finn 13 protrusions 14. Visible surface (paper screen side) 15 Finn
Claims
1. An opening construction material comprising a frame and a screen, a semi-enclosed space between the frame and the screen that is closed on the inside of the room with a sealant, and a passageway on the outside of the room that runs in the inner and outer periphery directions leading from the outside to the semi-enclosed space, the frame having a protrusion that protrudes toward the outside of the room at the inner end of the facing surface that constitutes the passageway, and a step that protrudes from the outer end of the facing surface to the outside of the passageway, and the screen having a fin that faces the facing surface on the frame side that constitutes the passageway and protrudes toward the outer or inner side.
2. An opening building material comprising a frame and a shoji screen, a semi-enclosed space between the frame and the shoji screen that is closed on the inside of the room with a tight material, and an indoor-outdoor passage on the outside of the room that leads from the outside to the semi-enclosed space, the frame having fins that protrude toward the inner periphery on a visible surface that forms the passage, and the inner periphery end of the fins has a protrusion that protrudes toward the outside of the room, the fins protrude more inward than the visible surface on the shoji screen side that forms the passage, and the shoji screen having fins that protrude toward the outer periphery or inner periphery on the indoor side end of the visible surface that forms the passage.