Doors and windows
The window fitting enhances appearance and thermal insulation by using a resin cover member to conceal screws and create hollow sections in the resin vertical frame, addressing issues of low quality and limited insulation in existing composite structures.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- YKK AP INC
- Filing Date
- 2022-06-15
- Publication Date
- 2026-06-16
Smart Images
Figure 0007874451000001 
Figure 0007874451000002 
Figure 0007874451000003
Abstract
Description
Technical Field
[0001] The present invention relates to a fitting provided with an opening frame.
Background Art
[0002] As windows for houses, stores, etc., there are fittings such as a sliding window in which left and right shoji are supported so as to be slidable with respect to each other by an opening frame, and a single-slide window in which only one of them is supported so as to be slidable. Patent Document 1 discloses a configuration in which, in a fitting of a sliding window, the opening frame has a composite structure of aluminum and resin to enhance heat insulation properties.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the configuration of Patent Document 1 described above, the vertical frame disposed on the door tip side of the outer shoji has an uneven shape provided on the prospective surface inside the resin vertical frame, and furthermore, the head of the screw for fixing the resin vertical frame to the metal vertical frame is exposed on the indoor side. Therefore, this configuration has low appearance quality when viewed from the indoor side. Moreover, in this vertical frame, the plate-shaped resin vertical frame abuts on the prospective surface inside the frame of the metal vertical frame in most of the prospective direction. Therefore, in this configuration, the effect of improving heat insulation performance is limited, and there is also a concern that dew condensation may occur on the surface of the resin vertical frame.
[0005] The present invention has been made in consideration of the above problems of the prior art, and an object thereof is to provide a fitting capable of enhancing appearance quality and heat insulation performance.
Means for Solving the Problems
[0006] A door and window according to a first aspect of the present invention comprises an opening frame fixed to the building structure, and an outer sash and an inner sash supported by the opening frame, wherein at least one of the inner sash and the outer sash is slidable from side to side, the opening frame comprises a vertical frame provided with an outer vertical rail that supports the door frame of the outer sash in the fully closed position, the vertical frame comprises a metal vertical frame fixed to the building structure and a resin vertical frame connected to the metal vertical frame, the resin vertical frame comprises a base portion connected to the metal vertical frame by screws so as to cover the inner surface of the metal vertical frame, and an angle portion integrally provided on the interior side of the base portion and fixed to the building structure, and further comprises a resin cover member attached to the resin vertical frame so as to cover the inner surface of the base portion and forming a hollow portion extending along the depth direction between the resin vertical frame and the cover member, the cover member extending from a position adjacent to the angle portion toward the interior surface of the outer sash in the fully closed position and concealing the screws. [Effects of the Invention]
[0007] According to the above-described embodiment of the present invention, the appearance quality and thermal insulation performance can be improved. [Brief explanation of the drawing]
[0008] [Figure 1] This is a view of a door or window according to one embodiment, as seen from the interior side. [Figure 2] Figure 1 is a vertical cross-sectional view of the joinery shown. [Figure 3] Figure 1 is a cross-sectional view of the joinery shown. [Figure 4] This is a magnified cross-sectional view of the vertical frame and its surrounding area located on the leading edge side of the outer sliding door. [Figure 5] Figure 4 is a partially exploded cross-sectional view showing the state in which the cover member is attached to the vertical frame. [Figure 6] This is a cross-sectional view showing a modified example of the vertical frame located on the leading edge side of an outer sliding door. [Modes for carrying out the invention]
[0009] The following describes preferred embodiments of the building components according to the present invention in detail with reference to the attached drawings.
[0010] As shown in Figures 1 to 3, the joinery 10 according to this embodiment comprises an opening frame 12 fixed to an opening in the building structure, and an outer sash 14 and an inner sash 15 slidably disposed inside the opening frame 12. In this embodiment, a sliding window joinery 10 is provided that allows opening 16 formed inside the opening frame 12 to be opened and closed by sliding the sashes 14 and 15 left and right. The sashes 14 and 15 may be single-sliding windows, with one end fixed to the opening frame 12 and only the other end sliding. The number of sashes installed may be three or more.
[0011] The opening frame 12 is formed by framing the upper frame 12a, the lower frame 12b, and the left and right vertical frames 12c and 12d around the perimeter to create a rectangular opening 16.
[0012] In this application, the "depth direction" refers to the direction of the door 10 from the inside to the outside, that is, the direction from the inside to the outside or the reverse direction (indicated by arrow Z in the figure), and the "depth surface" refers to the surface that extends along the depth direction. The "face direction" is the direction perpendicular to the depth direction, and in the case of a vertical frame 12c that is long in the vertical direction, it refers to the left-right direction perpendicular to its longitudinal direction (indicated by arrow X in the figure), and in the case of an upper frame 12a that is long in the left-right direction, it refers to the up-down direction perpendicular to its longitudinal direction (indicated by arrow Y in the figure). The "face surface" refers to the surface that aligns with the face direction. The "inside of the frame" refers to the inner part of a frame-shaped member such as an opening frame 12. The "outside of the frame" refers to the outer part of a frame-shaped member such as an opening frame 12. The "inside direction" refers to the direction from the outside of the frame to the inside of the frame-shaped member. The "outside direction" refers to the direction from the inside of the frame to the outside of the frame-shaped member.
[0013] First, let me explain the overall structure of the joinery 10.
[0014] The opening frame 12 is a window frame with a composite structure combining a metal frame material 18 installed on the exterior side and a resin frame material 20 installed on the interior side. The metal frame material 18 is an extruded profile of a metal material such as aluminum. The resin frame material 20 is an extruded profile of a resin material such as polyvinyl chloride resin (PVC). The metal frame material 18 includes a metal upper frame 18a, a metal lower frame 18b, and left and right metal vertical frames 18c and 18d. The resin frame material 20 includes a resin upper frame 20a, a resin lower frame 20b, and left and right resin vertical frames 20c and 20d.
[0015] As shown in Figure 2, the upper frame 12a is configured by connecting a resin upper frame 20a to a metal upper frame 18a that is fixed to the building structure with screws 22.
[0016] The metal upper frame 18a is configured to enhance thermal insulation performance by connecting the outdoor member 18a1 and the indoor member 18a2 with an insulating material 18a3. The outdoor member 18a1 forms the water drainage surface of the opening frame 12. A rail piece 24a is formed to protrude from the inner surface of the outdoor member 18a1. A rail piece 25a is formed to protrude from the inner surface of the indoor member 18a2. The metal upper frame 18a may be constructed from a single piece without using the insulating material 18a3.
[0017] The resin upper frame 20a comprises a base member 20a1 and an angle member 20a2. The base member 20a1 has rail pieces 24b and 25b aligned in the depth direction on the inner depth surface of the frame, and has a generally crank shape overall. The angle member 20a2 is provided so as to be continuous from the rail pieces 25b to the interior side. The interior end of the angle member 20a2 is fixed to the building structure or a frame fixed thereto with screws 22.
[0018] On the prospective surface inside the frame of the upper frame 12a, rails 24 and 25 protruding inward of the frame are provided side by side in the prospective direction. The rail 24 is a guide rail for slidably guiding the outer shutter 14. The rail 24 is formed by a rail piece 24a of the metal upper frame 18a and a rail piece 24b of the resin upper frame 20a, and has a rectangular hollow shape. The rail pieces 24a and 24b are engaged with each other at the top surface (lower surface) 24c of the rail 24. The rail 25 is a guide rail for slidably guiding the inner shutter 15. The rail 25 is formed by a rail piece 25a of the metal upper frame 18a and a rail piece 25b of the resin upper frame 20a, and has a rectangular hollow shape. Bent portions and protruding pieces are formed at the protruding end of the rail piece 25a and in the vicinity thereof. The rail piece 25b has a hook-shaped portion bent so as to enclose the bent portion and the protruding piece of the rail piece 25a. The rail pieces 25a and 25b are engaged with each other at the finding surface inside the room of the rail 25.
[0019] As shown in FIG. 2, the lower frame 12b has a configuration in which a resin lower frame 20b is connected to a metal lower frame 18b fixed to the building body with screws 22.
[0020] The metal lower frame 18b connects an outdoor side member 18b1 and an indoor side member 18b2 with a heat insulating material 18b3, and has a configuration with enhanced heat insulation performance. A rail piece 26a is formed to protrude on the prospective surface inside the frame of the outdoor side member 18b1. A rail piece 27a is formed to protrude on the prospective surface inside the frame of the indoor side member 18b2. The metal lower frame 18b may be composed of one member without using the heat insulating material 18b3.
[0021] The resin lower frame 20b has an outdoor side member 20b1 and an indoor side member 20b2. The outdoor side member 20b1 is provided with a pair of legs in the prospective direction on a horizontal plate forming a rail piece 26b protruding upward at the outdoor side end, and these legs are engaged with the outdoor side member 18b1 of the metal lower frame 18b. The indoor side member 20b2 has a horizontal plate forming a rail piece 27b protruding upward at the outdoor side end, and an angle portion 28 bent substantially in an L shape is formed at the indoor side end of this horizontal plate. The indoor side member 20b2 is engaged with the indoor side member 18b2 of the metal vertical frame 18c by a pair of legs provided in the prospective direction similar to the outdoor side member 20b1. The angle portion 28 is fixed to the building body or a frame fixed thereto with screws 22.
[0022] On the prospective surface inside the frame of the lower frame 12b, rails 26 and 27 protruding inside the frame are arranged side by side in the prospective direction. The rail 26 is a guide rail for slidably guiding the outer shutter 14. The rail 26 is formed by the rail piece 26a of the metal lower frame 18b and the rail piece 26b of the resin lower frame 20b, and has a rectangular hollow shape. The rail pieces 26a and 26b are engaged with each other at the top surface (upper surface) 26c of the rail 26. The rail 27 is a guide rail for slidably guiding the inner shutter 15. The rail 27 is formed by the rail piece 27a of the metal lower frame 18b and the rail piece 27b of the resin lower frame 20b, and has a rectangular hollow shape. The rail pieces 27a and 27b are engaged with each other at the top surface (upper surface) 27c of the rail 27.
[0023] As shown in FIG. 3, the vertical frame 12c is disposed on the door tip side of the outer shutter 14 in the fully closed position. The vertical frame 12c has a configuration in which a resin vertical frame 20c is connected to a metal vertical frame 18c fixed to the building body with screws 22.
[0024] The metal vertical frame 18c has a plate portion 30 and a rail piece 32a. The plate portion 30 extends along the indoor-outdoor direction and is fixed to the building body with screws 22. The rail piece 32a protrudes inward from the prospective surface 30a inside the frame of the plate portion 30. The rail piece 32a is provided at a position closer to the outdoor side than the center in the prospective direction of the prospective surface 30a inside the frame.
[0025] The resin vertical frame 20c has a base portion 34 and an angle portion 35. The base portion 34 extends in the direction of indoor to outdoor and is fixed to the inner frame surface 30a of the metal vertical frame 18c with screws 22. A rail piece 32b is formed on the inner frame surface 34a of the base portion 34, protruding inward from its outdoor end. The angle portion 35 is integrally formed with the indoor end of the base portion 34 and is fixed to the building structure or a frame fixed thereto with screws 22. A cover member 36 is attached to the inner frame surface 34a of the base portion 34, but details will be described later.
[0026] A rail (outside vertical rail) 32 is provided on the inner surface of the vertical frame 12c, protruding inward from the frame. The rail 32 is the part that supports the outer sash 14 when it is in the fully closed position. The rail 32 is formed from a rail piece 32a of the metal vertical frame 18c and a rail piece 32b of the resin vertical frame 20c, and has a rectangular hollow shape. The rail pieces 32a and 32b are engaged with each other at the top surface 32c of the rail 32.
[0027] As shown in Figure 3, the vertical frame 12d is positioned on the leading edge side of the inner sash 15 when it is in the fully closed position. The vertical frame 12d is configured by connecting a resin vertical frame 20d to a metal vertical frame 18d which is fixed to the building structure with screws 22.
[0028] The metal vertical frame 18d has a plate portion 38, a fin portion 39, and a rail piece 40a. The plate portion 38 extends in the direction of interior to exterior and is fixed to the building structure with screws 22. The fin portion 39 protrudes inward from the inner surface 38a of the plate portion 38. The rail piece 40a protrudes inward from the inner surface 38a of the inner surface 38a at a position on the interior side of the frame than the fin portion 39.
[0029] The fin portion 39 faces the exterior surface 15a of the interior sash 15 when it is in the fully closed position. The fin portion 39 has a pocket portion 39a that opens facing the exterior surface 15a. A thermally expandable member 41 can be installed in the pocket portion 39a. The thermally expandable member 41 is a material that expands when heated, and is, for example, a heat-expandable material such as graphite that foams when heated. By providing the thermally expandable member 41 in the pocket portion 39a of the joinery 10, the gap between the fin portion 39 and the interior sash 15 can be filled with the expanded thermally expandable member 41 in the event of a fire.
[0030] The resin vertical frame 20d has rail pieces 40b and angled sections 42, and has a generally crank shape overall. The rail pieces 40b protrude from the outdoor end of the resin vertical frame 20d toward the inside of the frame. The angled section 42 is a generally L-shaped portion formed at the indoor end of the resin vertical frame 20d and is fixed to the building structure or a frame fixed thereto with screws 22.
[0031] A rail (indoor vertical rail) 40 is provided on the inner surface of the vertical frame 12c, protruding inward from the frame. The rail 40 is the part that supports the inner sash 15 when it is in the fully closed position. The rail 40 is formed from a rail piece 40a of the metal vertical frame 18d and a rail piece 40b of the resin vertical frame 20d, and has a rectangular hollow shape. The rail pieces 40a and 40b are engaged with each other at the top surface 40c of the rail 40.
[0032] As shown in Figures 1 to 3, the outer shoji screen 14 comprises a facing material 44 and an upper frame 45a, a lower frame 45b, a door edge frame 45c, and a meeting frame 45d that surround the four sides of the facing material 44.
[0033] The facing material 44 is, for example, a double-glazed glass panel consisting of a pair of glass plates 44a and 44b facing each other with a spacer in between. The facing material 44 may be a single layer or a structure of three or more layers.
[0034] Each of the frame 45a to 45d is an extruded profile of a resin material such as PVC. Each of the frame 45a to 45d has an opening groove 46 that opens toward the inside of the frame. The opening groove 46 holds the outer edge of the facing material 44. Each of the frame 45a to 45c, except for the meeting frame 45d, has a guide groove 47 that opens toward the outside of the frame. The guide groove 47 of the upper frame 45a is into which the rail 24 of the upper frame 12a is slidably inserted. The guide groove 47 of the lower frame 45b is into which the rail 26 of the lower frame 12b is slidably inserted. The guide groove 47 of the door edge frame 45c is into which the rail 32 of the vertical frame 12c is inserted when the outer sash 14 is in the fully closed position.
[0035] As shown in Figure 2, a roller 48 is provided on the lower frame 45b. The roller 48 is a roller positioned in the guide groove 47 of the lower frame 45b and rolls on a projection 26d provided on the top surface 26c of the rail 26. As a result, the outer sash 14 slides smoothly within the opening 16, guided by the rails 24 and 26 in the guide grooves 47 of the upper and lower frames 45a and 45b. At this time, airtight and watertight materials 49 installed in the guide grooves 47 of each frame 45a and 45b slide against the visible surfaces on both the interior and exterior sides of each rail 24 and 26. The airtight and watertight material 49 is, for example, mohair or a sealing material.
[0036] In the fully closed position, the outer sash 14 is held stably by the guide groove 47 of the door frame 45c engaging with the rail 32 of the opposing vertical frame 12c (see Figures 3 and 4). At this time, the airtight and watertight material 49 installed in the guide groove 47 of the door frame 45c comes into contact with the visible surfaces of the rail 32 on both the interior and exterior sides.
[0037] As shown in Figures 1 to 3, the inner sash 15 is slidably guided between the rail 25 of the upper frame 12a and the rail 27 of the lower frame 12b, and can be moved in a sliding direction relative to the outer sash 14. The inner sash 15 can have a structure that is approximately symmetrical to the outer sash 14, except for a slight difference in the configuration of the meeting stile 45d. Therefore, each component of the inner sash 15 is given the same reference numerals as each component of the outer sash 14, and a detailed explanation is omitted. In the fully closed position, the inner sash 15 is stably held in place by the guide groove 47 of the door edge stile 45c engulfing the rail 40 of the opposing vertical frame 12d (see Figure 3).
[0038] When both shoji screens 14 and 15 are in the fully closed position, their meeting stiles 45d, 45d meet each other (see Figure 3). At this time, the smoke-repellent pieces 50 provided on the meeting stiles 45d, 45d interlock, and the airtight and watertight material 49 provided on the visible surface of one meeting stile 45d contacts the opposing visible surface of the other meeting stile 45d. At this time, the crescent lock 52a provided on the meeting stile 45d of the inner shoji screen 15 can be engaged with the crescent lock receiver 52b provided on the meeting stile 45d of the outer shoji screen 14, thereby locking the shoji screens 14 and 15.
[0039] Next, we will explain the specific configuration of the vertical frame 12c, which is positioned on the leading edge side of the outer sliding door 14.
[0040] As shown in Figures 4 and 5, the vertical frame 12c is configured such that the resin vertical frame 20c covers almost the entire area of the inner frame surface 30a of the metal vertical frame 18c that is on the interior side of the rail piece 32a. The resin vertical frame 20c is integrally molded as a single extruded profile, with the base portion 34 and the angle portion 35 forming a single component. In other words, the resin vertical frame 20c is a single component, resulting in high productivity and ease of installation. The resin vertical frame 20c extends in the depth direction from the base portion 34 to the angle portion 35, thereby covering the inner frame surface 30a of the metal vertical frame 18c. Specifically, the resin vertical frame 20c covers the entire area of the inner frame surface 30a that is on the interior side of the rail piece 32a.
[0041] The base portion 34 has, in order from the outdoor side toward the indoor side, a rail piece 32b, an inclined portion 34b, a hollow portion 34c, and a connecting portion 34d.
[0042] The inclined portion 34b gradually slopes inward toward the interior side of the frame and is installed so as to wrap around the corner of the door frame 45c of the outer sash 14 when it is in the fully closed position. As a result, the gap C formed between the resin vertical frame 20c and the door frame 45c is narrowed by the inclined portion 34b, improving the appearance quality of the joinery 10. The hollow portion 34c is roughly rectangular and extends along the depth direction. The connecting portion 34d is a plate portion that runs along the depth direction and is a plate portion that abuts against the inner depth surface 30a of the metal vertical frame 18c between the hollow portion 34c and the angle portion 35.
[0043] In this type of resin vertical frame 20c, the base portion 34 is connected to the metal vertical frame 18c by engaging portions 53-56 and screws 22 (hereinafter sometimes referred to as "screw 22A"), and the angle portion 35 is fixed to the building structure by screws 22 (hereinafter sometimes referred to as "screw 22B").
[0044] The engaging portion 53 connects the base portion of the rail piece 32a of the metal vertical frame 18c to the outdoor end portion of the resin vertical frame 20c. The engaging portion 53 is formed, for example, at the base portion of the rail piece 32a, and the outdoor end portion of the base portion 34 is inserted into a groove that opens facing inward.
[0045] The engaging portion 54 connects the rail piece 32a of the metal vertical frame 18c and the rail piece 32b of the resin vertical frame 20c. The engaging portion 54 is configured such that, for example, a hook-shaped claw formed on the rail piece 32a, which opens facing inward, hooks onto a hook-shaped claw formed on the rail piece 32b, which opens facing outward. The engaging portion 54 is positioned on the top surface 32c of the rail 32. As a result, the outer sash 14 has a pair of airtight and watertight materials 49 installed in the guide groove 47 of the door frame 45c that come into contact with the visible surfaces on both the interior and exterior sides of the rail 32, that is, the surfaces of each rail piece 32a, 32b. Consequently, the door 10 can prevent the airtight and watertight materials 49 from hitting the engaging portion 54 and reducing their watertightness, thus achieving high airtight and watertight performance.
[0046] The engaging portion 55 is located approximately in the center of the vertical frame 12c in the depth direction. The engaging portion 56 is located at the indoor end of the base portion 34. The engaging portions 55 and 56 connect the plate portion 30 of the metal vertical frame 18c and the base portion 34 of the resin vertical frame 20c. The engaging portions 55 and 56 may be configured to engage hook-shaped claw portions formed on the metal vertical frame 18c and the resin vertical frame 20c, respectively, similar to the engaging portion 54.
[0047] The screw 22A that connects the base portion 34 to the metal vertical frame 18c passes through the connecting portion 34d provided at the indoor end of the base portion 34. The screw 22A is also used to fix the metal vertical frame 18c to the building structure. The screw 22B that fixes the angle portion 35 to the building structure passes through the visible surface 35a of the angle portion 35. The screw 22B holds down the cantilevered angle portion 35, preventing it from lifting up or rattling.
[0048] As shown in Figures 4 and 5, a resin cover member 36 is attached to the resin vertical frame 20c. The cover member 36 is an extruded profile of a resin material such as PVC.
[0049] The cover member 36 is attached to the resin vertical frame 20c so as to cover the inner surface 34a of the base portion 34, and hides the heads of the screws 22A. The cover member 36 is positioned to be continuous with the surface 35a of the angle portion 35 and has a surface 36a that extends along the depth direction. The surface 36a is a substantially flat surface that extends from a position adjacent to the angle portion 35 to a position close to the indoor surface 14a of the outer sash 14.
[0050] As a result, the resin vertical frame 20c has substantially flat surfaces 35a and 36a from the angle portion 35 to the cover member 36, and at the same time the gap C between the cover member 36 and the outer sash 14 is narrowed, improving the appearance quality of the joinery 10. Furthermore, the cover member 36 further improves the appearance quality of the joinery 10 by concealing the heads of the screws 22A. In particular, the joinery 10 has a structure in which the vertical frame 12c is largely exposed into the room on the interior side of the outer sash 14. Therefore, by providing the cover member 36 in this part to improve the appearance quality, the overall aesthetics of the joinery 10 can be greatly enhanced. The surface 36a of the cover member 36 does not have to be flat; it may have some unevenness or may be slightly inclined with respect to the depth direction. Also, there may be some steps or gaps between the surface 36a and the surface 35a of the angle portion 35.
[0051] Furthermore, the statement that "the visible surface 36a extends to a position close to the indoor surface 14a" can also be rephrased as meaning that the visible surface 36a extends to a position as close as possible to the indoor surface 14a of the outer sash 14, that is, to a position where the gap C can be minimized, while avoiding interference between the cover member 36 and the opening and closing operation of the outer sash 14.
[0052] The cover member 36 forms two hollow sections 58 and 59 between itself and the resin vertical frame 20c. Hollow section 58 is positioned to be stacked on the inside of the hollow section 34c of the resin vertical frame 20c and extends along the depth direction. Hollow section 59 is positioned to close the connecting section 34d of the resin vertical frame 20c and extends along the visibility direction. Hollow section 59 has a height in the inside-outside direction that is approximately the same as the stacking height of the hollow sections 34c and 58. Furthermore, the length of the hollow sections 34c and 58 in the depth direction is considerably larger than that of hollow section 59.
[0053] Thus, the three hollow sections 34c, 58, and 59 are arranged such that the hollow sections 58, 59 and 34c, 59 are aligned in the depth direction, and the hollow sections 34c, 58 are aligned in the face direction. In other words, the vertical frame 12c has multiple hollow sections 34c, 58, and 59 aligned in the depth direction and the face direction between the metal vertical frame 18c and the interior. As a result, the insulation performance of the vertical frame 12c, which is largely exposed to the interior on the interior side of the outer sash 14, is improved, and the occurrence of condensation is also suppressed.
[0054] The cover member 36 is connected to the resin vertical frame 20c using, for example, engaging portions 60 and 61. The engaging portions 60 and 61 are formed at the corners of the hollow portion 34c of the resin vertical frame 20c that face inward, and are aligned in the depth direction. The engaging portion 60 is configured such that a hook-shaped claw portion 60a formed on the resin vertical frame 20c and opening toward the outside is hooked onto a hook-shaped claw portion 60b formed on the cover member 36 and protruding toward the inside. The engaging portion 61 is configured such that a hook-shaped claw portion 61a formed on the resin vertical frame 20c and protruding toward the inside is hooked onto a hook-shaped claw portion 61b formed on the cover member 36 and opening toward the outside.
[0055] Thus, the engaging portions 60 and 61 are provided at the corners of the plate portion that forms the hollow portion 34c, which is offset inward from the inner frame surface 34a of the resin vertical frame 20c. For this reason, the resin vertical frame 20c can be easily fitted with the cover member 36 despite having an inclined portion 34b and a hollow portion 34c. Moreover, the engaging portions 60 and 61 are hidden by the cover member 36 and are not exposed on the exterior of the joinery 10, so there is no impact on the appearance quality.
[0056] The vertical frame 12c may have a configuration other than the one described above, which includes three hollow sections 34c, 58, and 59. As shown in Figure 6, the vertical frame 12c may have a configuration that forms only one hollow section 62 between it and, for example, the cover member 36. Of course, the number of plate pieces formed on the resin vertical frame 20c and the cover member 36 may be changed as appropriate, so that the number of hollow sections is 2 or 4 or more.
[0057] Next, we will explain an example of the installation method for the joinery 10, paying particular attention to the configuration of the vertical frame 12c and its surrounding area.
[0058] First, the metal frame material 18 and the resin frame material 20 are pre-connected and framed at a factory or the like to form the opening frame 12. Here, as shown in Figure 5, in the vertical frame 12c, the resin vertical frame 20c is connected to the metal vertical frame 18c via engaging parts 53 to 56.
[0059] Such opening frames 12 are fixed to the building structure using screws 22 at the construction site. As shown in Figure 5, in the vertical frame 12c, the metal vertical frame 18c is fixed to the building structure using screws 22 (labeled "screw 22C" in Figure 5) and screws 22A. In this case, screw 22A fastens both the metal vertical frame 18c and the resin vertical frame 20c together.
[0060] Next, the cover member 36 is attached to the vertical frame 12c. As shown in Figure 5, the cover member 36 is first attached to the resin vertical frame 20c via the engaging parts 60 and 61. This causes the cover member 36 to cover the heads of the screws 22A. Subsequently, the angle part 35 is fixed to the building structure with screws 22B. As a result, as shown in Figure 4, the inner surface of the vertical frame 12c is configured to have a nearly flat shape with the angle part 35 and the visible surfaces 35a and 36a of the cover member 36 being continuous, resulting in high appearance quality and thermal insulation performance.
[0061] Finally, the installation of the joinery 10 is completed by placing the shoji screens 14 and 15 in the opening 16 of the opening frame 12 using the sliding door method.
[0062] As described above, the joinery according to the first aspect of the present invention comprises an opening frame fixed to the building structure, and an outer sash and an inner sash supported by the opening frame, wherein at least one of the inner sash and the outer sash is slidable from side to side, the opening frame comprises a vertical frame provided with an outdoor vertical rail that supports the door frame of the outer sash when it is in the fully closed position, the vertical frame comprises a metal vertical frame fixed to the building structure and a resin vertical frame connected to the metal vertical frame, the resin vertical frame is the inner projection of the metal vertical frame The door frame has a base portion connected to the metal vertical frame by screws so as to cover the surface, and an angle portion integrally provided on the interior side of the base portion and fixed to the building structure. Furthermore, it has a resin cover member attached to the resin vertical frame so as to cover the inner surface of the base portion, forming a hollow portion extending along the depth direction between the resin vertical frame and the cover member. The cover member extends from a position adjacent to the angle portion toward the interior surface of the outer sash in the fully closed position, concealing the screws. With this configuration, the vertical frame positioned on the door edge side of the outer sash is composed of a composite structure of a metal vertical frame and a resin vertical frame, and a resin cover member is attached to the inner surface of the resin vertical frame. As a result, the door frame has a high appearance quality because the screws and the uneven shape of the resin vertical frame are concealed by the cover member, and the heat insulation performance is improved by the hollow portion formed between the resin vertical frame and the cover member. Moreover, since the resin vertical frame is integrally formed from the base portion to the angle portion, workability and productivity are also improved.
[0063] The cover member may be arranged to be continuous with the angle portion and may have a substantially flat surface that extends along the depth direction to a position close to the interior surface of the outer sash. In this case, the surface of the vertical frame that is largely exposed to the interior on the interior side of the outer sash is formed to be substantially flat as a whole, further improving the appearance quality.
[0064] The resin vertical frame may further have rail pieces integrally provided on the outdoor side of the base portion and constituting a part of the outdoor vertical rail, and the top surface of the outdoor vertical rail may be composed of the rail pieces and the metal vertical frame. In this case, the section from the angle portion to the outdoor vertical rail is formed of resin vertical frames, further improving the thermal insulation performance and appearance quality. Furthermore, by positioning the connecting portion (engaging portion) between the metal vertical frame and the resin vertical frame on the top surface of the outdoor vertical rail, the airtight and watertight material provided on the outer sash can be reliably applied to both the indoor and outdoor surfaces, thereby achieving high airtight and watertight performance.
[0065] The aforementioned hollow section may include first and second hollow sections arranged side by side. This further improves the thermal insulation performance of the vertical frame.
[0066] The portion of the resin vertical frame covered by the cover member may be provided with a third hollow portion adjacent to the first and second hollow portions, the first and second hollow portions being arranged side by side in the depth direction, and the third hollow portion being arranged side by side with respect to the first hollow portion in the depth direction and side by side with respect to the second hollow portion in the width direction. In this configuration, the heat insulation performance of the vertical frame is further improved by aligning each hollow portion in the depth direction and the width direction.
[0067] The cover member may be provided with a pair of engaging parts for attaching it to the resin vertical frame, and the pair of engaging parts may be provided at the corners of the third hollow portion of the resin vertical frame. In this case, the resin vertical frame can be easily fitted with the cover member despite having a third hollow portion, and the engaging parts can be easily concealed by the cover member.
[0068] The opening frame further includes a second vertical frame provided with an indoor vertical rail that supports the door frame of the inner sash in the fully closed position, the second vertical frame having a second metal vertical frame fixed to the building structure and a second resin vertical frame connected to the second metal vertical frame so as to cover the inner surface of the second metal vertical frame, the second metal vertical frame having a fin portion that protrudes inward from its inner surface and faces the outdoor surface of the inner sash in the fully closed position, and the fin portion may be provided with a pocket portion that opens facing the outdoor surface of the inner sash. In this configuration, when the joinery is made fire-resistant, a thermally expandable member can be easily and stably placed in the pocket portion of the fin portion.
[0069] It should be noted that the present invention is not limited to the embodiments described above, and can be freely modified without departing from the spirit of the invention. [Explanation of Symbols]
[0070] 10 Doors and fittings, 12 Opening frame, 12a Upper frame, 12b Lower frame, 12c, 12d Vertical frame, 14 Outer sash, 15 Inner sash, 18c, 18d Metal vertical frame, 20c, 20d Resin vertical frame, 22 (22A~22C) Screw, 24, 25, 26, 27, 32, 40 Rail, 24a, 24b, 25a, 25b, 26a, 26b, 27a, 27b, 32a, 32b, 40a, 40b Rail piece, 28, 35, 42 Angle section, 34 Base section, 34c, 58, 59, 62 Hollow section, 36 Cover member, 39 Fin section, 39a Pocket section
Claims
1. A building fixture comprising an opening frame fixed to the building structure, and an outer sash and an inner sash supported by the opening frame, wherein at least one of the inner sash and the outer sash is slidable from side to side, The opening frame comprises a vertical frame on which an outdoor vertical rail is provided to support the door frame of the outer sliding door when it is in the fully closed position. The aforementioned vertical frame is, A metal vertical frame fixed to the building structure, A resin vertical frame connected to the aforementioned metal vertical frame, It has, The aforementioned resin vertical frame is A base portion connected to the aforementioned metal vertical frame by screws so as to cover the inner surface of the frame, An angle portion is integrally provided on the interior side of the base portion and fixed to the building structure, It has, Furthermore, it is equipped with a resin cover member that is attached to the resin vertical frame so as to cover the inner surface of the base portion, and which forms a hollow portion extending along the depth direction between it and the resin vertical frame. The cover member extends from a position adjacent to the angle portion toward the indoor surface of the outer sash in the fully closed position, concealing the screw. The cover member is arranged to be continuous with the visible surface of the angle portion and has a substantially flat visible surface that extends along the visible direction to a position close to the indoor surface of the outer sash. A type of joinery characterized by its features.
2. A joinery according to claim 1, The cover member is attached to the resin vertical frame by engaging with the base portion at a pair of engaging portions, while it is not engaged with the angle portion, and the indoor end of the substantially flat surface is adjacent to the outdoor end of the surface of the angle portion. A type of joinery characterized by its features.
3. A building fitting comprising an opening frame fixed to the building structure, and an outer sash and an inner sash supported by the opening frame, wherein at least one of the inner sash and the outer sash is slidable from side to side, The opening frame comprises a vertical frame on which an outdoor vertical rail is provided to support the door frame of the outer sliding door when it is in the fully closed position. The aforementioned vertical frame is, A metal vertical frame fixed to the building structure, A resin vertical frame connected to the aforementioned metal vertical frame, It has, The aforementioned resin vertical frame is A base portion connected to the aforementioned metal vertical frame by screws so as to cover the inner surface of the frame, An angle portion is integrally provided on the interior side of the base portion and fixed to the building structure, It has, Furthermore, it is equipped with a resin cover member that is attached to the resin vertical frame so as to cover the inner surface of the base portion, and which forms a hollow portion extending along the depth direction between it and the resin vertical frame. The cover member extends from a position adjacent to the angle portion toward the indoor surface of the outer sash in the fully closed position, concealing the screw. The aforementioned resin vertical frame is further integrally provided on the outdoor side of the base portion and has rail pieces that constitute a part of the outdoor vertical rail, The aforementioned outdoor vertical rail has its top surface composed of the rail piece and the metal vertical frame. A type of joinery characterized by its features.
4. A building fitting comprising an opening frame fixed to the building structure, and an outer sash and an inner sash supported by the opening frame, wherein at least one of the inner sash and the outer sash is slidable from side to side, The opening frame comprises a vertical frame on which an outdoor vertical rail is provided to support the door frame of the outer sliding door when it is in the fully closed position. The aforementioned vertical frame is, A metal vertical frame fixed to the building structure, A resin vertical frame connected to the aforementioned metal vertical frame, It has, The aforementioned resin vertical frame is A base portion connected to the aforementioned metal vertical frame by screws so as to cover the inner surface of the frame, An angle portion is integrally provided on the interior side of the base portion and fixed to the building structure, It has, Furthermore, it is equipped with a resin cover member that is attached to the resin vertical frame so as to cover the inner surface of the base portion, and which forms a hollow portion extending along the depth direction between it and the resin vertical frame. The cover member extends from a position adjacent to the angle portion toward the indoor surface of the outer sash in the fully closed position, concealing the screw. The hollow portion includes first and second hollow portions arranged side by side. A type of joinery characterized by its features.
5. The joinery according to claim 4, The portion of the resin vertical frame covered by the cover member is provided with a third hollow portion adjacent to the first and second hollow portions. The first and second hollow portions are arranged side by side in the depth direction, The third hollow section is arranged in the depth direction relative to the first hollow section, and in the face direction relative to the second hollow section. A type of joinery characterized by its features.
6. The joinery according to claim 5, The cover member is provided with a pair of engaging parts for attaching it to the resin vertical frame, The pair of engaging portions are provided at the corners of the third hollow portion of the resin vertical frame. A type of joinery characterized by its features.
7. A joinery according to any one of claims 1 to 6, The opening frame further comprises a second vertical frame on which an indoor vertical rail is provided to support the door frame of the inner sliding door when it is in the fully closed position. The second vertical frame mentioned above is, A second metal vertical frame fixed to the building structure, A second resin vertical frame connected to the second metal vertical frame so as to cover the inner surface of the second metal vertical frame, It has, The second metal vertical frame has a fin portion that protrudes from the inner surface of the frame toward the inside of the frame and faces the outer surface of the inner sash when it is in the fully closed position. The fin portion is provided with a pocket portion that opens to face the exterior surface of the inner sash. A type of joinery characterized by its features.