Fitting

By using a composite structure with metal and resin frame members and metal cover members to cover exposed resin portions, the fitting addresses the challenge of achieving both fire resistance and heat insulation in smoke exhaust window fittings.

JP2025088490APending Publication Date: 2025-06-11YKK AP INC
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Patent Information

Application Number
JP2023203217
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-30
Publication Date
2025-06-11

AI Technical Summary

Technical Problem

Existing fittings for smoke exhaust windows, which combine a frame body and a shoji screen, face challenges in achieving both fire resistance and heat insulation performance due to the inferior heat insulation properties of metal extrusion profiles compared to resin.

Method used

The fitting incorporates a composite structure with a metal frame member on the outdoor side and a resin frame member on the indoor side, along with metal cover members to cover exposed portions of the resin frame and pressing edge, enhancing both fire resistance and heat insulation.

Benefits of technology

This configuration effectively achieves both fireproof performance and heat insulation performance, stabilizing the installation by firmly fixing the cover members to the resin profiles.

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Abstract

To provide a fitting capable of achieving both fireproofing and heat insulation.SOLUTION: The fitting includes a frame and a Shoji screen supported by the frame. The frame has a metal frame material, and a resin frame material attached to an interior side of the metal frame material. The Shoji screen has a frame, a face material supported by the frame, and a bead attached to an interior side of the frame and holding down the face material. The bead has a metal bead, and a resin bead provided on an interior side of the metal bead. The fitting includes a metal first cover member that covers a portion exposed to an interior side of the resin frame material, and a metal second cover member that covers a portion exposed to an interior side of the resin bead.SELECTED DRAWING: Figure 3
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Description

Technical Field

[0001] The present invention relates to a fitting including a frame body and a shoji screen.

Background Art

[0002] In buildings, houses, etc., fittings such as opening windows having a structure in which a shoji screen is rotatably supported by a frame body as a smoke exhaust window, for example, may be installed (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Patent Document 1 discloses that the frames of the frame body and the shoji screen are formed of metal or resin extrusion profiles. By the way, depending on the region, the frame body and the frame of the smoke exhaust window may need to be formed of metal (non-combustible material) to ensure a predetermined fire resistance. However, since metal extrusion profiles are inferior to resin in terms of heat insulation performance, the heat insulation performance becomes a problem.

[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 achieving both fire resistance and heat insulation performance.

Means for Solving the Problems

[0006] The fitting according to one aspect of the present invention is a fitting including a frame body and a shoji supported by the frame body, wherein the frame body has a metal frame member and a resin frame member provided on the indoor side of the metal frame member, and the shoji has a frame body, a face member supported by the frame body, and a pressing edge attached to the indoor side of the frame body for pressing the face member, the pressing edge having a metal pressing edge and a resin pressing edge provided on the indoor side of the metal pressing edge, and further including a first cover member made of metal for covering a portion exposed on the indoor side of the resin frame member and a second cover member made of metal for covering a portion exposed on the indoor side of the resin pressing edge.

Effects of the Invention

[0007] According to the above aspect of the present invention, it is possible to achieve both fireproof performance and heat insulation performance.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Modes for Carrying Out the Invention

[0009] Hereinafter, preferred embodiments of the fitting according to the present invention will be given and described in detail with reference to the accompanying drawings.

[0010] As shown in FIGS. 1 to 4, the fitting 10 according to the first embodiment includes a frame body 12 fixed to an opening of a building body, and a shoji 14 rotatably supported inside the frame body 12. In the present embodiment, the fitting 10 of a protruding window in which the shoji 14 rotates with the upper edge as a rotation fulcrum and the lower edge protruding toward the outdoor side is exemplified. The fitting 10 is, for example, a smoke exhaust window installed in a building or a house. The fitting according to the present application may be other than a protruding window, for example, an outward-opening window, a sliding window, a vertically sliding window, or the like.

[0011] The frame body 12 forms a rectangular opening 16 inside by forming a four-sided frame with an upper frame 12a, a lower frame 12b, and left and right vertical frames 12c, 12d.

[0012] In the present application, the prospective direction refers to the indoor-outdoor direction of the fitting 10, that is, the direction from the indoor side to the outdoor side or the reverse direction (the direction indicated by the arrow Z in the figure), and the prospective plane refers to a plane extending along the prospective direction. The finding direction is a direction orthogonal to the prospective direction. In the case of a vertically long vertical frame 12c or the like, it refers to the left-right direction (the direction indicated by the arrow X in the figure) orthogonal to its longitudinal direction. In the case of a horizontally long upper frame 12a or the like, it refers to the up-down direction (the direction indicated by the arrow Y in the figure) orthogonal to its longitudinal direction. The finding plane refers to a plane along the finding direction. The inside of the frame refers to the inner part of the frame member such as the frame body 12, and the outside of the frame refers to the outer part of the frame member such as the frame body 12.

[0013] The frame body 12 is a window frame having a composite structure in which a metal frame member 18 disposed on the outdoor side and a resin frame member 19 disposed on the indoor side are combined. The metal frame member 18 is an extruded shape made of a metal material such as an aluminum alloy. The resin frame member 19 is an extruded shape made of a resin material such as vinyl chloride resin (PVC). The metal frame member 18 includes a metal upper frame 18a, a metal lower frame 18b, and left and right metal vertical frames 18c, 18d. The resin frame member 19 includes a resin upper frame 19a, a resin lower frame 19b, and left and right resin vertical frames 19c, 19d.

[0014] As shown in FIG. 3, the upper frame 12a is configured by connecting a resin upper frame 19a to the indoor side of a metal upper frame 18a. The resin upper frame 19a covers the indoor side surface of the metal upper frame 18a. A predetermined anchor component is connected to an anchor attachment portion 20 formed on the prospective surface outside the frame of the metal upper frame 18a, and is fixed to the building body through this anchor component. The resin upper frame 19a is connected to the metal upper frame 18a by, for example, a pair of engagement portions 22a and 22b, and the indoor side end portion is fixed to the building body with screws 23.

[0015] A door stop piece 26 is provided at the indoor side end portion of the prospective surface 24 inside the frame of the metal upper frame 18a, and a water drainage member 27 is attached to the outdoor side end portion of the prospective surface 24. The door stop piece 26 is a plate piece protruding from the prospective surface 24 inside the frame (downward). The door stop piece 26 is a portion that receives the shoji 14 in the fully closed position shown in FIG. 3. A pocket portion that opens toward the outdoor side is provided at the tip of the door stop piece 26, and a tight material 28 is attached to this pocket portion. The tight material 28 is in close contact with the indoor side surface of the shoji 14 and is an airtight and watertight material for ensuring the airtightness and watertightness in the indoor-outdoor direction of the opening 16. The water drainage member 27 is attached to a pocket portion formed on the prospective surface 24 and opening downward, and can contact the upper end of the shoji 14.

[0016] The resin upper frame 19a covers the surface of the door stop piece 26 of the metal upper frame 18a and the surface of the portion on the indoor side thereof. The resin upper frame 19a has a hollow portion 29 at a position aligned with the indoor side of the door stop piece 26.

[0017] As shown in FIG. 3, the lower frame 12b is configured by connecting a resin lower frame 19b to the indoor side of a metal lower frame 18b. The resin lower frame 19b covers the indoor side surface of the metal lower frame 18b. A predetermined anchor component is connected to an anchor attachment portion 30 formed on the prospective surface outside the frame of the metal lower frame 18b, and is fixed to the building body through this anchor component. The resin lower frame 19b is connected to the metal lower frame 18b by, for example, a pair of engagement portions 32a and 32b, and the indoor side end portion is fixed to the building body with screws 23.

[0018] The metal lower frame 18b is provided with a door stop piece 34 at the indoor side end of the prospective surface 33 inside the frame. The door stop piece 34 is a plate piece protruding from the prospective surface 33 inside the frame (upward). The door stop piece 34 is a part for receiving the shoji 14 in the fully closed position shown in Fig. 3. A pocket portion opening toward the outdoor side is provided at the tip of the door stop piece 34, and the tight material 28 is attached to this pocket portion.

[0019] The resin lower frame 19b covers the upper end surface of the door stop piece 34 of the metal lower frame 18b and the portion on the indoor side thereof. The lower frame 12b has a hollow portion 35 formed by the metal lower frame 18b and the resin lower frame 19b on the indoor side of the door stop piece 34. A part of the wall portion surrounding the hollow portion 35 is formed by the metal lower frame 18b, and the rest is formed by the resin lower frame 19b.

[0020] As shown in Fig. 3, the upper frame 12a further has a cover member (first cover member) 36 provided so as to cover the surface of the portion exposed on the indoor side of the resin upper frame 19a. The lower frame 12b further has a cover member (first cover member) 37 provided so as to cover the surface of the portion exposed on the indoor side of the resin lower frame 19b. The specific configurations of the cover members 36 and 37 will be described later.

[0021] As shown in Fig. 4, one vertical frame 12c has a configuration in which a resin vertical frame 19c is connected to the indoor side of a metal vertical frame 18c. The resin vertical frame 19c covers the indoor side surface of the metal vertical frame 18c. The metal vertical frame 18c has a predetermined anchor part connected to an anchor attachment part 38 formed on the prospective surface outside the frame, and is fixed to the building body through this anchor part. The resin vertical frame 19c is connected to the metal vertical frame 18c by, for example, a pair of engaging parts 40a and 40b, and the indoor side end is fixed to the building body with a screw 23.

[0022] The metal vertical frame 18c is provided with a door stop piece 42 at the indoor side end of the prospective surface 41 inside the frame. The door stop piece 42 is a plate piece protruding inward from the prospective surface 41 into the frame. The door stop piece 42 is a part for receiving the shoji 14 in the fully closed position shown in FIG. 4. A pocket portion opening toward the outdoor side is provided at the tip of the door stop piece 42, and the tight material 28 is attached to this pocket portion.

[0023] The resin vertical frame 19c covers the surface of the door stop piece 42 of the metal vertical frame 18c and the surface of the portion on the indoor side thereof. The resin vertical frame 19c has a hollow portion 43 at a position aligned with the indoor side of the door stop piece 42.

[0024] The other vertical frame 12d can have a structure symmetrical to that of one vertical frame 12c. Therefore, in FIG. 3, only one vertical frame 12c and its peripheral portion are typically shown, and the illustration of the other vertical frame 12d is omitted. Also in FIG. 3, the reference numerals of the vertical frame 12d, the resin vertical frame 19d, and the metal vertical frame 18d are appended in parentheses to the reference numerals of the vertical frame 12c, the resin vertical frame 19c, and the metal vertical frame 18c.

[0025] As shown in FIG. 4, the vertical frames 12c, 12d further have a cover member (first cover member) 44 provided so as to cover the surface of the portion exposed on the indoor side of the resin vertical frames 19c, 19d (see also FIG. 2). The specific configuration of the cover member 44 will be described later.

[0026] As shown in FIGS. 1 to 4, the shoji 14 includes a face material 46, a frame body 47 surrounding the four sides of the face material 46, and a pressing edge 48.

[0027] The face material 46 is, for example, a two-layer laminated glass in which a pair of plate glasses 46a, 46b are opposed to each other with a spacer sandwiched therebetween. The face material 46 may be a single layer or may have a structure of three or more layers.

[0028] The frame body 47 supports the facing material 46 inside by forming a four-sided frame structure with the upper frame 47a, the lower frame 47b, and the left and right vertical frames 47c and 47d. On the outdoor side end of the prospective surface 50 inside the frames 47a - 47d, there are finding pieces 51 provided. The finding piece 51 is a plate piece protruding from the prospective surface 50 to the inside of the frame. The finding piece 51 is the part that supports the outdoor side surface of the facing material 46.

[0029] The frames 47a - 47d are extruded profiles made of a metal material such as an aluminum alloy. In this embodiment, the upper frame 47a and the lower frame 47b have a vertically symmetric structure, and the vertical frames 47c and 47d have a horizontally symmetric structure. In Fig. 4, only one vertical frame 47c and its peripheral part are typically illustrated, the illustration of the other vertical frame 47d is omitted, and the reference numeral of the vertical frame 47d is appended in parentheses to the reference numeral of the vertical frame 47c. The frames 47a - 47d may each have a different cross-sectional shape, or all the frames 47a - 47d may have the same cross-sectional shape.

[0030] The edge retainers 48 are respectively mounted on the indoor side of the prospective surfaces 50 of each of the frames 47a - 47d. The edge retainer 48 is the part that supports the indoor side surface of the facing material 46. Each edge retainer 48 mounted on the frames 47a - 47d has the same or similar cross-sectional shape. The facing material 46 is held via a gasket, a sealing material, etc. in a state where the four peripheral edges are inserted into the opening groove formed by the finding piece 51, the edge retainer 48, and the prospective surface 50.

[0031] The edge retainer 48 includes a metal edge retainer 48a and a resin edge retainer 48b. The metal edge retainer 48a is an extruded profile made of a metal material such as an aluminum alloy. The resin edge retainer 48b is an extruded profile made of a resin material such as polyvinyl chloride resin (PVC). The metal edge retainer 48a is connected to the prospective surfaces 50 of the frames 47a - 47d using the engaging part 54. The resin edge retainer 48b is connected to the metal edge retainer 48a and the prospective surface 50 by a pair of engaging parts 55a and 55b. The edge retainer 48 is configured to simultaneously hold the indoor side surface of the facing material 46 with the metal edge retainer 48a and the resin edge retainer 48b arranged in the frame inside - outside direction.

[0032] As shown in FIG. 3, the shoji screen 14 is pivotally connected to the frame body 12 via a hinge 60. The hinge 60 is connected to the prospective surface 24 inside the frame of the upper frame 12a and the prospective surface 58 outside the frame of the upper stile 47a. The reference numeral 61 in FIG. 3 is a wire-type shoji screen opening / closing device that is bridged between the lower stile 47b and the lower frame 12b and is operated by a predetermined operation handle to open and close the shoji screen 14. The reference numeral 62 in FIG. 4 is a stay damper that controls the opening / closing torque of the shoji screen 14 with respect to the frame body 12.

[0033] As shown in FIGS. 3 and 4, each pressing edge 48 attached to the stiles 47a to 47d further has a cover member (second cover member) 64 provided so as to cover the surface of the portion of the resin pressing edge 48b that is exposed on the indoor side (see also FIG. 2).

[0034] Next, the configurations and functions of the cover members 36, 37, 44, and 64 will be described.

[0035] The cover members 36, 37, 44, and 64 enhance the fireproof performance of the frame body 12 and the pressing edge 48. The cover members 36, 37, 44, and 64 are formed of non-combustible materials and are, for example, extruded profiles of metal materials such as aluminum alloys. The cover members 36, 37, 44 are provided so as to cover the portion of the resin frame material 19 that is exposed on the indoor side. In other words, the cover members 36, 37, 44 are provided so as to cover the positions on the surface of the resin frame material 19 that are visible from the indoor side. Similarly, the cover member 64 is provided so as to cover the portion of the resin pressing edge 48b that is exposed on the indoor side, that is, the position that is visible from the indoor side.

[0036] As shown in FIG. 3, the cover member 36 attached to the upper frame 12a has a crank-shaped or substantially Z-shaped cross-sectional shape. The cover member 36 has a prospective cover portion 36a, a finding cover portion 36b, and a prospective cover portion 36c. The cover member 36 is provided so as to extend over the entire length of the resin upper frame 19a.

[0037] The resin upper frame 19a is provided at a position where the prospective surface 66a, the finding surface 67a, and the prospective surface 68a are exposed toward the indoor side (opening 16). The prospective surface 66a is the inner prospective surface of the frame of the wall portion 66 that covers the tip of the door stop piece 26 and extends to the indoor side up to the lower side of the hollow portion 29. The finding surface 67a is the indoor finding surface of the wall portion 67 on the indoor side of the hollow portion 29. The prospective surface 68a is the inner prospective surface of the fin portion 68 that protrudes toward the indoor side from the upper portion of the finding surface 66b. The fin portion 68 is a portion fixed to the building body with the screw 23.

[0038] The prospective cover portion 36a is arranged along the indoor-outdoor direction so as to cover the prospective surface 66a. The prospective cover portion 36a is fixed to the wall portion 66 via the back plate (first back plate) 70 in the hollow portion 29. The back plate 70 is a sheet metal part formed by bending a metal plate such as steel or stainless steel into an L shape. The back plate 70 is attached at appropriate intervals at a plurality of locations in the longitudinal direction of the resin upper frame 19a. The back plate 70 has a first plate portion 70a along the vertical direction and a second plate portion 70b bent from the lower end of the first plate portion 70a toward the indoor side. The first plate portion 70a is fixed to the outdoor wall portion of the hollow portion 29 with the screw 71. The second plate portion 70b is arranged in contact with the lower surface of the hollow portion 29. The prospective cover portion 36a is brought into contact with the prospective surface 66a and fixed to the second plate portion 70b in the hollow portion 29 with the screw 72, thereby being fastened to the resin upper frame 19a.

[0039] The finding cover portion 36b is arranged along the vertical direction (frame inside-outside direction) so as to cover the finding surface 67a. The prospective cover portion 36c is arranged along the indoor-outdoor direction so as to cover the prospective surface 68a. The prospective cover portion 36c can cover the head of the screw 23 that fixes the fin portion 68 to the building body and also improve the design property of the cover member 36.

[0040] As shown in FIG. 3, the cover member 37 attached to the lower frame 12b is formed in a substantially plate shape. The cover member 37 has, for example, three protrusions 37a on the lower surface near the center in the indoor-outdoor direction. The cover member 37 is provided so as to extend over the entire length of the resin lower frame 19b.

[0041] The resin lower frame 19b is provided at a position where the prospective surface 74a is exposed toward the indoor side (opening 16). The prospective surface 74a is the inner prospective surface of the frame of the wall portion 74 that covers the tip of the door stop piece 34 and extends to the indoor side beyond the hollow portion 35. The wall portion 74 forms the inner wall portion of the hollow portion 35. The end portion protruding to the indoor side beyond the hollow portion 35 of the wall portion 74 is a portion fixed to the building body with screws 23. A shallow recess 74b is formed in the vicinity of the center of the prospective surface 74a in the indoor-outdoor direction.

[0042] The cover member 37 is arranged along the indoor-outdoor direction so as to cover the prospective surface 74a. The cover member 37 is fixed to the wall portion 74 with screws 76 using the back plate 75 in the hollow portion 35. The back plate 75 is arranged on the back side of the recess 74b and fixed to the wall portion 74 with screws 77. The screw 77 is provided at a position offset from the screw 76 in the longitudinal direction of the resin lower frame 19b and does not interfere with the screw 76. The recess 74b is a depression for accommodating the head of the screw 77. The cover member 37 has a protrusion 37a that projects from the bottom surface of the recess 74b so as to straddle the head of the screw 77. Thereby, the cover member 37 is securely fastened to the wall portion 74 with the screw 76 without interfering with the head of the screw 77.

[0043] As shown in FIG. 4, the cover member 44 attached to the vertical frame 12c (12d) has a crank-shaped or substantially Z-shaped cross-sectional shape. In the case of this embodiment, the cross-sectional shape of the resin vertical frame 19c (19d) is substantially the same shape as the cross-sectional shape of the resin upper frame 19a, except that the dimensions such as the mounting posture and the finding direction are different. Therefore, the configuration of the cover member 44 can be the same as the configuration of the cover member 36.

[0044] Therefore, for each component of the resin vertical frame 19c (19d) and the cover member 44, the same reference numerals as those of the components of the resin upper frame 19a and the cover member 36 are given, and detailed description thereof is omitted. That is, the resin vertical frame 19c (19d) also has wall portions 66, 67 and fin portions 68, and prospective surfaces 66a, 68a and finding surfaces 67a thereof. The cover member 44 also has prospective cover portions 36a, 36c that cover the prospective surfaces 66a, 68a, and a finding cover portion 36b that covers the finding surface 67a. The prospective cover portion 36a of the cover member 44 is also fixed to a back plate (first back plate) 70 fixed in the hollow portion 43 with a screw 72, and thereby fastened to the resin vertical frame 19c (19d).

[0045] As shown in FIGS. 3 and 4, the cover member 64 attached to each pressing edge 48 has a substantially L-shaped cross-sectional shape. The cover member 64 has a prospective cover portion 64a and a finding cover portion 64b. The cover member 64 is provided so as to extend over the entire length of the resin pressing edge 48b.

[0046] The resin pressing edge 48b is provided at a position where a prospective surface 80a and a finding surface 81a are exposed toward the indoor side (opening 16). The prospective surface 80a is an inner prospective surface of a frame of a wall portion 80 that covers the tip of a protruding piece portion where the metal pressing edge 48a presses the facing material 46 and extends in the prospective direction. The finding surface 81a is an indoor finding surface of a wall portion 81 that extends from the indoor side end portion of the prospective surface 80a to the outside of the frame.

[0047] The expected cover part 64a is arranged along the indoor-outdoor direction so as to cover the expected surface 80a. The expected cover part 64a is fixed to the wall part 80 with screws 83 using a back plate (second back plate) 82 in a hollow part 79 formed in the resin edge pressing 48b. The back plate 82 is arranged on the back side of the expected surface 80a and is fixed to the wall part 80 with screws 84. The screws 84 are provided at positions offset from the screws 83 in the longitudinal direction of the resin edge pressing 48b and do not interfere with the screws 83. A plurality of protrusions 64c arranged in the indoor-outdoor direction are provided on the back surface of the expected cover part 64a. The expected cover part 64a is propped up against the expected surface 80a such that the protrusions 64c straddle the heads of the screws 84. Thereby, the expected cover part 64a is surely fastened to the wall part 80 with the screws 83 without interfering with the heads of the screws 84.

[0048] The finding cover part 64b is arranged so as to cover the finding surface 81a. As shown in FIG. 3, the upper end part of the finding cover part 64b of the edge pressing 48 attached to the upper frame 47a extends to a position facing the outdoor-side end part of the expected cover part 36a which is the outermost outdoor-side part of the cover member 36 of the upper frame 12a. Thereby, when the fitting 10 is viewed from the indoor side, the periphery of the gap G1 between the resin upper frame 19a and the resin edge pressing 48b is surrounded by the expected cover part 36a which is a metal profile and the finding cover part 64b. Similarly, the periphery of the gap G2 between the resin lower frame 19b and the resin edge pressing 48b is also surrounded by the expected cover part 36a which is a metal profile and the cover member 37 (see FIG. 3). The periphery of the gap G3 between the resin vertical frame 19c (19d) and the resin edge pressing 48b is also surrounded by the expected cover part 36a which is a metal profile and the finding cover part 64b of the cover member 44 (see FIG. 4).

[0049] As described above, the fitting 10 of the present embodiment includes a frame body 12 provided with a resin frame member 19 on the indoor side of the metal frame member 18, and a shutter 14 in which a pressing edge 48 provided with a resin pressing edge 48b on the indoor side of the metal pressing edge 48a is attached to the indoor side of the frame body 47. In the fitting 10, the portions exposed on the indoor side of the resin frame member 19 are covered with metal cover members 36, 37, 44, and the portions exposed on the indoor side of the resin pressing edge 48b are covered with a metal cover member 64. Therefore, the fitting 10 can enhance the heat insulation performance by the resin frame member 19 and the resin pressing edge 48b. Furthermore, in the fitting 10, the portions exposed on the indoor side of the resin frame member 19 and the resin pressing edge 48b are covered with the metal cover members 36, 37, 44, 64, so that the fire prevention performance is improved. As a result, the fitting 10 can achieve both fire prevention performance and heat insulation performance.

[0050] The cover members 36, 37, 44 are screwed to the back plates 70, 75 arranged in the hollow portions 29, 35, 43 of the resin upper frame 19a, the resin lower frame 19b, and the resin vertical frames 19c, 19d. The cover member 64 is screwed to the back plate 82 arranged in the hollow portion 79 of the resin pressing edge 48b. Thereby, the cover members 36, 37, 44, 64 can be firmly fixed to the resin profiles (the resin frame member 19 and the resin pressing edge 48b) having lower strength than the metal profiles, and more stable installation becomes possible.

[0051] The cover members 36, 44 of the resin upper frame 19a and the resin vertical frames 19c, 19d have a finding cover portion 36b that covers the finding surface 67a and a prospective cover portion 36a that covers the prospective surface 66a. In the cover members 36, 44, the prospective cover portion 36a is fixed to the resin frame member 19 using the back plate 70. That is, the fitting 10 has a structure in which the prospective cover portion 36a facing the inside of the frame (opening 16) of the frame body 12 is fixed by the back plate 70. Thereby, the fitting 10 can suppress the sagging of the prospective cover portion 36a, and the fixing of the cover members 36, 44 becomes more stable. Similarly, for the cover member 64 of the upper frame 47a and the vertical frames 47c, 47d, the prospective cover portion 64a is fixed to the resin pressing edge 48b by the back plate 82. Thereby, the fitting 10 can also suppress the sagging of the prospective cover portion 64a.

[0052] Note that the finding cover portions 36b and 64b covering the finding surfaces 67a and 81a have less concern about sagging than the prospective cover portions 36a and 64a. However, it goes without saying that the finding cover portions 36b and 64b may also be fixed to the respective finding surfaces 67a and 81a using a back plate.

[0053] Next, the fitting 10A according to the second embodiment will be described with reference to FIGS. 5 and 6.

[0054] In FIGS. 5 and 6, the same reference numerals as those shown in FIGS. 1 to 4 denote the same or similar configurations. For this reason, detailed descriptions thereof are omitted as having the same or similar functions and effects, and the same applies to FIGS. 7 and 8.

[0055] As shown in FIGS. 5 and 6, the fitting 10A of the present embodiment is different from the fitting 10 of the first embodiment described above in that a screen door 90 is provided on the indoor side of the shoji 14 and that cover members 92, 93, and 94 having different configurations from the cover members 36, 37, and 44 are provided.

[0056] The screen door 90 includes a screen door frame 96 and a screen body 97 stretched inside the screen door frame 96. The screen door 90 is a fixed screen door that is supported so as not to be opened or closed with respect to the frame body 12.

[0057] The screen door frame 96 supports the screen body 97 inside by forming a four-sided frame with an upper frame (screen door upper frame) 96a, a lower frame (screen door lower frame) 96b, and left and right vertical frames (screen door vertical frames) 96c and 96d. The frames 96a to 96d are extrusion-molded products of a metal material such as an aluminum alloy or an extrusion-molded product of a resin material such as polyvinyl chloride resin (PVC). The frames 96a to 96d of the present embodiment have the same cross-sectional shape. The screen body 97 is a mesh formed of metal fine wires such as stainless steel or resin fine wires such as polypropylene. The screen body 97 is stretched with its four sides supported by the screen door frame 96. Note that the vertical frame 96d is a portion supported by the vertical frame 12d. The reference numeral of the vertical frame 96d is appended in parentheses to the reference numeral of the vertical frame 96c in FIG. 6.

[0058] The screen door 90 is supported by the frame body 12 such that the upper frame 96a, which is the upper edge portion, is supported by the cover member 92 attached to the resin upper frame 19a, and the lower frame 96b, which is the lower edge portion, is supported by the cover member 63 attached to the resin lower frame 19b (see Fig. 5). Further, the screen door 90 can be supported by the resin vertical frames 19c and 19d at the side edge portions (see Fig. 6).

[0059] The cover members 92 to 94 are formed of a non-combustible material similar to the above-described cover members 36, 37, 44, and 64, and are, for example, extruded profiles of a metal material such as an aluminum alloy. The cover members 92 to 94 are provided so as to cover the portions of the resin upper frame 19a, the resin lower frame 19b, and the resin vertical frames 19c and 19d that are exposed on the indoor side, that is, the positions visible from the indoor side.

[0060] As shown in Fig. 5, the cover member 92 attached to the upper frame 12a has a substantially crank-shaped or substantially Z-shaped cross-sectional shape as a whole. The cover member 92 has a prospective cover portion 36a, a finding cover portion 92a, a protruding piece 92b, and a prospective cover portion 36c. The cover member 92 is provided so as to extend over the entire length of the resin upper frame 19a.

[0061] The finding cover portion 92a is different in that it has a cross-sectional shape bent in a substantially crank shape compared to the finding cover portion 36b having a linear cross-sectional shape shown in Fig. 3. The protruding piece 92b is a plate piece hanging downward from the indoor-side end of the portion of the finding cover portion 92a along the indoor-outdoor direction. The protruding piece 92b is arranged side by side with the portion extending along the finding surface 67a of the finding cover portion 92a. Thereby, a recess 92c opening downward is formed between the finding cover portion 92a and the protruding piece 92b. The recess 92c is a groove portion into which the upper edge portion (upper frame 96a) of the screen door 90 is inserted over the entire length.

[0062] As shown in Fig. 5, the cover member 93 attached to the lower frame 12b has a substantially L-shaped cross-sectional shape as a whole. The cover member 93 has a prospective cover portion 93a and a pair of protruding pieces 93b and 93c. The cover member 93 is provided so as to extend over the entire length of the resin lower frame 19b.

[0063] The prospective cover portion 93a has the same or similar shape and function as the cover member 37 shown in Fig. 3, and is fixed to the wall portion 74 with screws 76 using the back plate 75. The protruding pieces 93b and 93c protrude upward from the prospective cover portion 93a and are arranged in the indoor-outdoor direction, forming a recess 93d that opens upward between them. The recess 93d is a groove portion into which the lower edge portion (lower frame 96b) of the screen door 90 is inserted over the entire length.

[0064] Note that the upper and lower edge portions of the screen door 90 are inserted into the recesses 92c and 93d in the Kendon method from the indoor side. Therefore, the protruding height of the indoor-side protruding piece 93c is suppressed to be lower than that of the outdoor-side protruding piece 93b, enabling smoother insertion of the lower frame 96b into the recess 93d. The protruding heights of the protruding pieces 93b and 93c may be the same. The indoor-side protruding piece 93c has a stopper member 98 fixed with a screw 99 using a predetermined back plate at the center or near the center in its longitudinal direction. The stopper member 98 is a member for restricting the upward movement of the screen door 90.

[0065] As shown in Fig. 6, the cover member 94 attached to the vertical frame 12c (12d) has a substantially crank-shaped or substantially Z-shaped cross-sectional shape as a whole. The cover member 94 has the same configuration as the cover member 44 shown in Fig. 4, but is different in that the finding cover portion 36b is arranged at a position offset toward the indoor side compared to the cover member 44. That is, in the cover member 94, the finding cover portion 36b is arranged via a plurality of protrusions 94a between it and the finding surface 67a, and there is a gap corresponding to the protruding height of the protrusions 94a between it and the finding surface 67a.

[0066] The reason why the cover member 94 offsets the position of the finder cover portion 36b more toward the indoor side than the cover member 44 is as follows. That is, the finder cover portion 36b supports the vertical frames 96c (96d) of the screen door 90 on its indoor-side finder surface. For this reason, the finder cover portion 36b of the cover member 94 needs to align the position in the prospective direction with the finder cover portion 92a and the protruding piece 93b of the other cover members 92 and 93.

[0067] Next, the support structure of the screen door 90 and the functions and effects of the fitting 10A will be described.

[0068] As shown in FIGS. 5 and 6, for the screen door 90, the upper frame 96a is inserted into the recess 92c of the cover member 92, and the lower frame 96b is inserted into the recess 93d of the cover member 93. Specifically, the screen door 90 can be assembled to the cover members 92 and 93 by a kendon method in which the upper edge portion is inserted to the inner part of the recess 92c and then the lower edge portion is inserted into the recess 93d. For this reason, the screen door 90 is stably supported by the cover members 92 and 93 without rattling and is prevented from coming off. Note that the lower surface of the lower frame 96b is placed on the bottom of the recess 93d via a predetermined setting block.

[0069] The vertical frames 96c and 96d of the screen door 90 can be smoothly moved up and down while being positioned along the finder cover portion 36b and the prospective cover portion 36c of the cover member 93 during kendon. After the installation of the screen door 90, since the vertical frames 96c and 96d are supported by the cover member 93, the stability of the screen door 90 is further improved.

[0070] As described above, also in the fitting 10A of the present embodiment, similar to the fitting 10 described above, it is possible to achieve both improvement in heat insulation performance by the resin frame material 19 and the resin edge 48b and improvement in fire prevention performance by the cover members 92 to 94 and 64. Moreover, the fitting 10A is provided with recesses 92c and 93d for supporting the screen door 90 in the fire prevention cover members 92 and 93. For this reason, it is not necessary to additionally install a frame body for supporting the screen door 90 on the cover members 92 to 94. For this reason, the fitting 10A is easy to attach the screen door 90, can improve the design property, and can further reduce the component cost.

[0071] For the fittings 10 and 10A of the present embodiment, when the screen 90 is not required, the fittings 10 to which the cover members 36, 37, and 44 are applied can be used, and when the screen 90 is required, the fittings 10A to which the cover members 92 to 94 are applied can be used. That is, the fittings can improve their versatility by using a common frame body 12 in a product lineup according to the presence or absence of a screen, and the component cost can also be reduced.

[0072] By the way, since the screen 90 is supported by the frame body 12 in the Kendon method, the screen 90 can move upward in a state where only the upper and lower edge portions are inserted into the concave portions 92c and 93d. For this reason, when the screen 90 is affected by, for example, a gust of wind or a storm, it may be lifted upward, and there is a possibility that the lower edge portion may fall off from the concave portion 93d. Therefore, the fitting 10A can fix the stopper member 98 to the cover member 93. The stopper member 98 restricts the upward movement of the screen 90 by locking the lower frame 96b of the screen 90, and further improves the support stability of the screen 90. The stopper member 98 can be formed of, for example, a sheet metal part obtained by bending a metal plate such as stainless steel, steel, or aluminum into an L shape. The stopper member 98 is fixed to the center or near the center in the longitudinal direction of the cover member 93, but its arrangement and the number of installations can be appropriately changed.

[0073] As shown in FIG. 7, the prospective cover portion 36c of the cover member 92 may be fixed to the building body together with the fin portion 68 with screws 23. Similarly, the prospective cover portion 93a of the cover member 93 may be fixed to the building body together with the indoor side end portion of the wall portion 74 with screws 23. In addition, the prospective cover portion 36c of the cover member 36 and the cover member 37 shown in FIG. 3 may be similarly fixed to the building body with screws 23. FIGS. 7 and 8 omit the illustration of the back plates 70, 75, etc.

[0074] As shown in FIG. 8, the prospective cover portion 36c of the cover member 94 may be fixed to the building body together with the fin portion 68 with screws 23. In addition, the prospective cover portion 36c of the cover member 44 shown in FIG. 4 may be similarly fixed to the building body with screws 23.

[0075] As described above, the fitting according to one aspect of the present invention is a fitting including a frame body and a shoji supported by the frame body, wherein the frame body has a metal frame member and a resin frame member provided on the indoor side of the metal frame member, and the shoji has a frame body, a face member supported by the frame body, and a pressing edge attached to the indoor side of the frame body for pressing the face member. The pressing edge has a metal pressing edge and a resin pressing edge provided on the indoor side of the metal pressing edge. The fitting further includes a first cover member made of metal for covering a portion of the resin frame member that is exposed on the indoor side, and a second cover member made of metal for covering a portion of the resin pressing edge that is exposed on the indoor side. With such a configuration, the heat insulation performance can be enhanced by the resin frame member and the resin pressing edge. Further, the fitting can improve the fire resistance performance by covering the portions of the resin frame member and the resin pressing edge that are exposed on the indoor side with the first and second cover members made of metal.

[0076] Here, the cover member covering the portion of the resin frame member (resin pressing edge) exposed on the indoor side is a concept that includes not only the case where the cover member covers the entire surface of the portion of the resin frame member (resin pressing edge) exposed on the indoor side, but also the case where it covers most of it. In short, as long as the fitting can ensure the desired fire resistance performance by the cover member. Also, the cover member covering the portion of the resin frame member (resin pressing edge) exposed on the indoor side can be rephrased as the cover member covering the position visible from the indoor side of the resin frame member (resin pressing edge). In this case, the position visible from the indoor side can be said to be, for example, the range that is normally visible when a person in the room looks at the fitting.

[0077] The fitting may be configured to include a screen door provided on the indoor side of the shoji, and the first cover member may be provided with a recess in which an edge portion of the screen door is disposed. By doing so, since there is no need to additionally install a frame for supporting the screen door on the cover member, the attachment of the screen door becomes easy, the design property can be improved, and the component cost can also be reduced.

[0078] The resin frame material and the resin edge trim have hollow portions. The first cover member may be screwed to a first back plate disposed in the hollow portion of the resin frame material, and the second cover member may be screwed to a second back plate disposed in the hollow portion of the resin edge trim. In this case, the first and second cover members can be firmly fixed to the resin frame material and the resin edge trim, which are inferior in strength to the metal profiles, enabling more stable installation.

[0079] The first cover member has a first finding cover portion that covers the finding surface of the resin frame material and a first prospect cover portion that covers the prospect surface of the resin frame material. At least the first prospect cover portion is fixed to the resin frame material using the first back plate. The second cover member has a second finding cover portion that covers the finding surface of the resin edge trim and a second prospect cover portion that covers the prospect surface of the resin edge trim. At least the second prospect cover portion is fixed to the resin edge trim using the second back plate. In this case, the first and second prospect cover portions, where there is a concern about sagging inside the frame body, can be firmly fixed, suppressing the sagging.

[0080] It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that it can be freely changed without departing from the gist of the present invention.

Explanation of Reference Numerals

[0081] 10, 10A Fittings, 12 Frame body, 12a Upper frame, 12b Lower frame, 12c, 12d Vertical frames, 14 Shoji, 18 Metal profile, 19 Resin frame material, 36, 37, 44, 64, 92 - 94 Cover members, 36a, 36c, 64a, 93a Prospect cover portions, 36b, 64b, 92a Finding cover portions, 46 Face material, 47 Frame, 48 Edge trim, 48a Metal edge trim, 48b Resin edge trim, 90 Screen door, 92c, 93d Recesses

Claims

1. A fitting comprising a frame body and a shoji supported by the frame body, wherein the frame body has a metal frame member and a resin frame member provided on the indoor side of the metal frame member, the shoji has a frame body, a face member supported by the frame body, and a pressing edge attached to the indoor side of the frame body for pressing the face member, the pressing edge has a metal pressing edge and a resin pressing edge provided on the indoor side of the metal pressing edge, a first cover member made of metal for covering a portion of the resin frame member that is exposed on the indoor side, a second cover member made of metal for covering a portion of the resin pressing edge that is exposed on the indoor side, and characterized by comprising the above.

2. The fitting according to Claim 1, comprising a screen door provided on the indoor side of the shoji, wherein the first cover member is provided with a recess in which an edge portion of the screen door is disposed. and characterized by the above.

3. The fitting according to Claim 1 or 2, wherein the resin frame member and the resin pressing edge have hollow portions, the first cover member is screwed to a first back plate disposed in the hollow portion of the resin frame member, and the second cover member is screwed to a second back plate disposed in the hollow portion of the resin pressing edge. and characterized by the above.

4. The fitting according to Claim 3, wherein the first cover member has a first finding cover portion for covering a finding surface of the resin frame member and a first prospect cover portion for covering a prospect surface of the resin frame member, and at least the first prospect cover portion is fixed to the resin frame member using the first back plate, the second cover member has a second finding cover portion for covering a finding surface of the resin pressing edge and a second prospect cover portion for covering a prospect surface of the resin pressing edge, and at least the second prospect cover portion is fixed to the resin pressing edge using the second back plate. and characterized by the above.

Citation Information

Patent Citations

  • Fitting

    JP2021195765A