Fixture

Abstract

To provide a fixture capable of reducing product costs while maintaining sound insulation performance.SOLUTION: A fixture comprises: a frame body; and a sliding door having a stile body, the sliding door being rotatably supported relative to the frame body. The fixture comprises a sound insulation material disposed in a gap formed between a depth surface of the frame body and a depth surface of the stile body facing each other in a closed state of the sliding door, or disposed in an indoor-side extension area of the gap.SELECTED DRAWING: Figure 3

Description

Technical Field

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

Background Art

[0002] As a window for a building or a house, there is a casement window having a structure in which a shoji screen is rotatably supported by a frame body. Examples of this type of casement window include a projecting window with a hinge attached to the upper frame of the shoji screen and a vertically sliding window with a hinge attached to the vertical frame of the shoji screen (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] Fittings constituting a window as described above may be required to have sound insulation performance. In order to improve the sound insulation performance of the fittings, for example, there is a method of increasing the wall thickness of the profile constituting the frame body or the frame. However, in this configuration, the material cost of the profile increases.

[0005] In addition, fittings for windows as described above may attempt to standardize the profiles between fittings with specifications requiring high sound insulation performance and fittings with specifications not requiring high sound insulation performance in order to reduce the number of parts. In this case, there is also a problem that the sound insulation performance of fittings with specifications not requiring high sound insulation performance becomes excessive, and the product cost further increases.

[0006] 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 ensuring sound insulation performance while reducing the product cost.

Means for Solving the Problems

[0007] The fitting according to one aspect of the present invention includes a frame body and a shoji having a frame, and the shoji is rotatably supported with respect to the frame body. The fitting is provided with a sound insulation material disposed in a gap formed between the prospective surfaces of the frame body and the frame that face each other when the shoji is closed, or disposed in an indoor-side extension region of the gap.

Effect of the Invention

[0008] According to the above aspect of the present invention, it is possible to ensure sound insulation performance while reducing product costs.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0010] Hereinafter, preferred embodiments of the fitting according to the present invention will be given, and detailed description will be made with reference to the accompanying drawings.

[0011] 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 this embodiment, the fitting 10 of the protruding window in which the shoji 14 rotates with the upper edge as the 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, for example, a casement window, an inward-opening window, a sliding window, a vertical sliding window, etc., other than the protruding window, and may be used for applications other than the smoke exhaust window.

[0012] 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 and 12d.

[0013] 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-shaped member such as the frame body 12. The outside of the frame refers to the outer part of the frame-shaped member such as the frame body 12. The frame inner direction refers to the direction from the outside of the frame-shaped member toward the inside of the frame. The frame outer direction refers to the direction from the inside of the frame-shaped member toward the outside of the frame.

[0014] The frame body 12 is a window frame of a composite structure combining a metal frame material 18 disposed on the outdoor side and a resin frame material 19 disposed on the indoor side. The metal frame material 18 is an extruded shape of a metal material such as an aluminum alloy. The resin frame material 19 is an extruded shape of a resin material such as vinyl 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 19 includes a resin upper frame 19a, a resin lower frame 19b, and left and right resin vertical frames 19c and 19d.

[0015] 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 engaging portions 22a and 22b, and the indoor side end portion is fixed to the building body with screws 23.

[0016] 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 to the inside (downward) of the frame. 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 an airtight and watertight material for ensuring the airtightness and watertightness in the indoor-outdoor direction of the opening 16 by being in close contact with the indoor side surface of the shoji 14. 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.

[0017] 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. All the wall portions surrounding the hollow portion 29 are formed by the resin upper frame 19a.

[0018] 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 engaging portions 32a and 32b, and the indoor side end portion is fixed to the building body with screws 23.

[0019] The metal lower frame 18b is provided with a door stop piece 36 at the indoor-side end of the prospective surface 34 inside the frame. The door stop piece 36 is a plate piece protruding from the prospective surface 34 inside the frame (upward). The door stop piece 36 is a portion for receiving 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 36, and the tight material 28 is attached to this pocket portion.

[0020] The resin lower frame 19b covers the upper end surface of the door stop piece 36 of the metal lower frame 18b and the portion on the indoor side thereof. The lower frame 12b has a hollow portion 37 formed by the metal lower frame 18b and the resin lower frame 19b on the indoor side of the door stop piece 36. A part of the wall portion surrounding the hollow portion 37 is formed by the metal lower frame 18b, and the rest is formed by the resin lower frame 19b.

[0021] As shown in FIG. 4, one vertical frame 12c is configured by connecting a resin vertical frame 19c 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 component connected to an anchor attachment portion 38 formed on the prospective surface outside the frame, and is fixed to the building body through this anchor component. The resin vertical frame 19c is connected to the metal vertical frame 18c by, for example, a pair of engaging portions 40a, 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 44 at the indoor-side end of the prospective surface 42 inside the frame. The door stop piece 44 is a plate piece protruding from the prospective surface 42 inside the frame. The door stop piece 44 is a portion for receiving the shoji 14 in the fully closed position shown in FIG. 4. A pocket portion that opens toward the outdoor side is provided at the tip of the door stop piece 44, 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 44 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 45 at a position aligned with the indoor side of the door stop piece 44.

[0024] As shown in FIG. 4, the other vertical frame 12d can have a structure symmetrical to that of one vertical frame 12c. Therefore, for each component of the vertical frame 12d, the same reference numerals as those of the components of the vertical frame 12c are given, and detailed description thereof is omitted. That is, also in the vertical frame 12d, a resin vertical frame 19d is connected to a metal vertical frame 18d by engaging portions 40a and 40b. Further, the vertical frame 12d also has a door stop piece 44 with a tight material 28 attached to the indoor side end of the expected surface 24, and the resin vertical frame 19d has a hollow portion 45.

[0025] As shown in FIGS. 1 to 4, the shoji 14 includes a face material 46, a frame body 47 surrounding the four circumferences of the face material 46, and a pressing edge 48.

[0026] The face material 46 is, for example, a two-layer laminated glass in which a pair of plate glasses 46a and 46b are opposed to each other with a spacer interposed therebetween. The face material 46 may be a single layer or may have a structure of three or more layers.

[0027] The frame body 47 is configured to support the face material 46 inside by forming a four-sided frame with an upper frame 47a, a lower frame 47b, and left and right vertical frames 47c and 47d. In the frames 47a to 47d, a finding piece 51 is provided at the outdoor side end of the expected surface 50 inside the frame. The finding piece 51 is a plate piece protruding from the expected surface 50 to the inside of the frame. The finding piece 51 is a portion that supports the outdoor side surface of the face material 46. The vertical frames 47c and 47d have finding pieces protruding from the outdoor side ends of the expected surface 52 outside the frame to the outside of the frame, and a drain material 53 is attached to a pocket portion formed in the finding piece. The tip of the drain material 53 can contact the expected surface 42 inside the frames of the vertical frames 12c and 12d.

[0028] The frames 47a to 47d are extrusion-molded products 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 symmetrical structure, and the vertical frames 47c and 47d have a horizontally symmetrical structure. The frames 47a to 47d may each have a different cross-sectional shape, or all of the frames 47a to 47d may have the same cross-sectional shape.

[0029] The pressing edge 48 is respectively mounted on the indoor side of the prospective surfaces 50 of the respective frames 47a to 47d. The pressing edge 48 is a portion that supports the indoor side surface of the surface material 46. The surface material 46 is held via a gasket, a sealing material, etc. in a state where the peripheral edge portions are inserted into the opening grooves formed by the finding piece 51, the pressing edge 48, and the prospective surface 50.

[0030] The pressing edge 48 includes a metal pressing edge 48a and a resin pressing edge 48b. The metal pressing edge 48a is an extruded shape made of a metal material such as an aluminum alloy. The resin pressing edge 48b is an extruded shape made of a resin material such as vinyl chloride resin (PVC). The metal pressing edge 48a is connected to the prospective surfaces 50 of the frames 47a to 47d using the engaging portion 54. The resin pressing edge 48b is connected to the metal pressing edge 48a and the prospective surface 50 by a pair of engaging portions 55a, 55b. The pressing edge 48 is configured to simultaneously hold the indoor side surface of the surface material 46 with the metal pressing edge 48a and the resin pressing edge 48b arranged in the frame inside-outside direction.

[0031] As shown in FIG. 3, the shoji 14 is rotatably 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 frame 47a. The reference numeral 61 in FIG. 4 is a stay damper that controls the opening and closing torque of the shoji 14 with respect to the frame body 12.

[0032] The fitting 10 of this embodiment is a casement window that rotatably supports the shoji 14 with respect to the frame body 12 as described above. For this reason, the fitting 10 provides a gap G having a certain width between the prospective surfaces 24, 34, 42, 42 inside the frames of the frames 12a to 12d facing each other with the shoji 14 closed and the prospective surfaces 58, 58, 52, 52 outside the frames of the frames 47a to 47d (see FIGS. 2 and 3). This gap G serves as a passage (noise path N) for sound (noise) from the outdoor side and is a factor that reduces the sound insulation performance of the fitting 10.

[0033] Here, as a result of an experiment investigating the sound insulation performance of the fitting 10, it was found that the gap G between the horizontal frames (frames 12a and 12b) has a greater impact on the sound insulation performance than the gap G between the vertical frames 12c, 12d and the vertical side frames 47c, 47d. Hereinafter, the gap G formed between the prospective surface 24 of the upper frame 12a and the prospective surface 58 of the upper side frame 47a may be referred to as "gap G1", and the gap G between the prospective surface 34 of the lower frame 12b and the prospective surface 58 of the lower side frame 47b may be referred to as "gap G2".

[0034] As shown in FIG. 3, the fitting 10 of the present embodiment is provided with sound insulation materials 64 in the gaps G1 and G2, respectively.

[0035] As the sound insulation material 64, for example, a fin-shaped tight material formed of a soft material such as rubber or soft resin can be used. A plate material 66 is fixed to the approximate center in the indoor-outdoor direction of the prospective surface 24 of the upper frame 12a by screwing or the like. The plate material 66 is also fixed to the approximate center in the indoor-outdoor direction of the prospective surface 58 of the lower side frame 47b by screwing or the like. The plate material 66 is provided with a pocket portion on the side opposite to the fixing surface with respect to the prospective surfaces 24 and 58, and the sound insulation material 64 is attached to this pocket portion. The plate material 66 may be fixed to the prospective surface 58 of the upper side frame 47a instead of the upper frame 12a (see FIG. 5). Similarly, the plate material 66 may be fixed to the prospective surface 34 of the lower frame 12b instead of the lower side frame 47b. The sound insulation material 64 extends over substantially the entire length in the longitudinal direction of the gaps G1 and G2, that is, the longitudinal direction of the frames 12a, 12b and the side frames 47a, 47b. Specifically, the sound insulation material 64 extends so as to span, for example, between the prospective surface 50 inside the frame of the vertical side frame 47c and the prospective surface 50 inside the frame of the vertical side frame 47d.

[0036] Therefore, the sound insulation material 64 attached to the plate material 66 on the upper frame 12a side is arranged to cross the gap G1, and the tip contacts the expected surface 58 of the upper frame 47a. The sound insulation material 64 attached to the plate material 66 on the lower frame 47b side is arranged to cross the gap G2, and the tip contacts the expected surface 34 of the lower frame 12b. Thus, the sound insulation material 64 can partition the gaps G1 and G2 into two small chambers in the indoor-outdoor direction respectively, and divide and reduce the volumes of the gaps G1 and G2 into small volumes. As a result, the fitting 10 can reduce the path volume of the noise path N formed by the gaps G1 and G2 to suppress resonance, and improve the sound insulation performance.

[0037] The sound insulation material 64 may be provided in the gap G between the expected surfaces 42 of the vertical frames 12c and 12d and the expected surfaces 52 of the vertical frames 47c and 47d, instead of or together with the gaps G1 and G2.

[0038] As described above, the fitting 10 of the present embodiment includes the sound insulation material 64 arranged in the gap G between the expected surfaces 24 and 34 of the frame body 12 facing each other and the expected surface 58 of the frame body 47. Therefore, the fitting 10 can ensure the sound insulation performance while reducing the material cost and product cost of the profile, compared with a configuration that ensures the sound insulation performance by increasing the wall thickness of the profile forming the frame body 12 to be not less than the required strength.

[0039] For the fitting 10, it is only necessary to install a sound insulation material 64, which is a soft material, in the gap G. Therefore, among the product lineup of the fitting 10, for example, in products with specifications that do not require high sound insulation performance, the sound insulation material 64 can be omitted, and the component cost can be further reduced. In particular, the sound insulation material 64 is configured to be installed via a plate material 66 that can be attached to and detached from the frame body 12 and the frame 47. Thereby, when the sound insulation material 64 is not required for the fitting 10, the component cost of the plate material 66 can also be reduced, and the product cost can be further reduced. Further, since the plate material 66 can be fixed at a desired position in the indoor-outdoor direction of the gap G, the arrangement of the sound insulation material 64 in the gap G can be easily adjusted. For this reason, the fitting 10 can easily install the sound insulation material 64 at an optimal position for reducing the sound in the target frequency range, and the sound insulation performance can be further improved. It is also possible to configure the fitting 10 such that a pocket portion is directly provided on the expected surfaces 24 and 58 without using the plate material 66, and the sound insulation material 64 is mounted therein.

[0040] The sound insulation material 64 can also obtain a water-stopping effect on the indoor side of the water drainage material 27. Thereby, for the fitting 10, a high water-stopping effect can be expected because the water drainage material 27, the sound insulation material 64, and the tight material 28 are arranged in sequence from the outdoor side to the indoor side.

[0041] Next, the fitting 10A according to the second embodiment will be described with reference to FIG. 6.

[0042] In FIG. 6, the same reference numerals as those shown in FIGS. 1 to 5 denote the same or similar configurations. Therefore, detailed descriptions thereof are omitted as having the same or similar functions and effects, and the same applies to FIG. 7.

[0043] As shown in FIG. 6, the fitting 10A of the present embodiment is different from the fitting 10 of the first embodiment described above in that it includes a sound insulation material 70 having a different configuration from the sound insulation material 64. The sound insulation material 70 is a metal plate formed of steel, aluminum, or the like. The sound insulation material 70 is fixed to the outdoor-side finding surfaces 72 of the door contact pieces 26 and 36 of the metal upper frame 18a and the metal lower frame 18b, respectively. The sound insulation material 70 is disposed facing the indoor-side ends of the gaps G1 and G2. The sound insulation material 70 extends over substantially the entire length in the longitudinal direction of the gaps G1 and G2, that is, the longitudinal direction of the frames 12a and 12b. Specifically, the sound insulation material 70 extends so as to span, for example, between the prospective surface 74 (see FIG. 4) of the outermost wall portion of the vertical frame 12c and the prospective surface 74 of the outermost wall portion of the vertical frame 12d. Thereby, the sound insulation material 70 is disposed so as to cross the noise path N. The sound insulation material 70 is fitted, for example, into a pocket portion 73 formed in the outdoor-side finding surface 72 of the door contact pieces 26 and 36. The sound insulation material 70 may be fixed to the door contact pieces 26 and 36 by screwing or the like.

[0044] Therefore, in the fitting 10A, the weight and thickness of the door contact pieces 26 and 36 that cross the noise path N formed by the gaps G1 and G2 are increased by the sound insulation material 70 which is a metal plate. As a result, the fitting 10A can reduce the sound passing through the noise path N and improve the sound insulation performance. That is, the sound insulation material 70 substantially increases the weight and thickness of the profile forming the frames 12a and 12b retroactively to reduce noise. Therefore, the material of the sound insulation material 70 is preferably formed of a metal having a higher density than the aluminum alloy forming the metal frame material 18, for example, steel. Also, from the viewpoint of increasing the thickness of the profile, the plate thickness of the sound insulation material 70 is preferably larger than the plate thickness of the door contact pieces 26 and 36.

[0045] The sound insulation material 70 may be provided on the door contact pieces 44 of the vertical frames 12c and 12d instead of or together with the door contact pieces 26 and 36 of the frames 12a and 12b.

[0046] As described above, the fitting 10A of this embodiment includes a sound insulation material 70 disposed on the indoor side of the gap G between the prospective surfaces 24 and 34 of the frame body 12 facing each other and the prospective surface 58 of the frame body 47. Therefore, also in the fitting 10A, it is possible to ensure sound insulation performance while reducing the material cost and product cost of the profile in the same manner as the fitting 10 described above. That is, the sound insulation material 70 can be installed only on a part of the frame body 12 that has a large influence on the sound insulation effect, and the cost can be significantly suppressed compared to a configuration that increases the weight of the entire frame body 12. Further, since the sound insulation material 70 can be easily attached and detached, in products that do not require high sound insulation performance, the sound insulation material 70 can be omitted, and the component cost and product cost can be further reduced.

[0047] In the fitting 10A, a sound insulation material 70, which is a metal plate, is provided on the door stop pieces 26 and 36 arranged so as to close the indoor side of the gap G. As a result, the sound insulation material 70 can increase the weight and thickness of the profile at a position that shields the noise path N by retrofitting, and improve the sound insulation performance.

[0048] The sound insulation material 70 is preferably disposed at a position intersecting with the extension line L of the prospective surfaces 58 of the frames 47a and 47b, that is, on the extension line of the surface on the shoji 14 side among the surfaces forming the gaps G1 and G2. That is, the fitting 10A is provided with an opening 16 whose inner side of the frame body 12 is an opening space, and a building structure, which is a heavy object, is provided on the outer side of the frame body 12. Therefore, the sound insulation material 70 can further enhance the sound insulation effect by reliably shielding a position closer to the shoji 14 (frame body 47) side rather than the frame body 12 side particularly in the width direction of the gaps G1 and G2.

[0049] The frame body 12 of the fitting 10A has a structure in which a resin frame material 19 is attached to a metal frame material 18 to enhance its heat insulation performance. Therefore, the fitting 10A is disadvantageous in terms of sound insulation because the weight of the frame body 12 is reduced by the lightweight resin frame material 19. In this regard, by arranging the sound insulation material 70 so as to shield the noise path N, the fitting 10A can enhance the sound insulation performance while ensuring the heat insulation performance.

[0050] Next, the fitting 10B according to the third embodiment will be described with reference to FIG. 7.

[0051] As shown in FIG. 7, the fitting 10B of the present embodiment includes a sound insulation material 75 that is arranged differently from the sound insulation material 70 of the above-described second embodiment. As the sound insulation material 75, a metal plate made of the same material as the above-described sound insulation material 70 can be used. The sound insulation material 75 is arranged in a hollow portion 29 formed in the resin upper frame 19a and a hollow portion 37 formed by the metal lower frame 18b and the resin lower frame 19b. The sound insulation material 75 in the hollow portion 29 can be fixed, for example, by screwing to the resin upper frame 19a that forms the outdoor side wall portion of the hollow portion 29. The sound insulation material 75 in the hollow portion 37 can be fixed, for example, by screwing to the metal lower frame 18b that forms the outdoor side wall portion of the hollow portion 37.

[0052] The sound insulation material 75 is arranged in the indoor side extension regions of the gaps G1 and G2. The sound insulation material 75 extends over substantially the entire length in the longitudinal direction of the hollow portions 29 and 37, that is, the longitudinal direction of the frames 12a and 12b. Specifically, the sound insulation material 75 extends, for example, so as to span between the prospective surface 74 (see FIG. 4) of the outermost wall portion of the vertical frame 12c and the prospective surface 74 of the outermost wall portion of the vertical frame 12d. Thereby, the sound insulation material 75 is arranged so as to shield the noise path N. The reference numeral 76 in FIG. 7 is a wire-type sliding door opening / closing device that is arranged in the gap G2, bridges between the lower sill 47b and the lower frame 12b, and is operated by a predetermined operation handle to open and close the sliding door 14.

[0053] Accordingly, for the fitting 10B, the weight and thickness of the resin upper frame 19a and the metal lower frame 18b that form the hollow portions 29 and 37 crossing the noise path N formed by the gaps G1 and G2 are increased by the sound insulation material 75 which is a metal plate. As a result, in the fitting 10B as well, the noise passing through the noise path N can be reduced to improve the sound insulation performance, and furthermore, the material cost and the product cost can be reduced. Note that, from the viewpoint of also increasing the weight of the frames 12a and 12b, the sound insulation material 75 of the present embodiment is preferably formed of a metal having a higher density than the aluminum alloy or resin forming the resin upper frame 19a and the metal lower frame 18b, for example, steel. Also, from the viewpoint of increasing the thickness of the profile, the plate thickness of the sound insulation material 75 is preferably larger than the plate thickness of the wall portion where the sound insulation material 75 is fixed in the resin upper frame 19a and the metal lower frame 18b. Furthermore, the sound insulation material 75 is preferably disposed at a position intersecting with the extension line L of the prospective surface 58 outside the frame of the frames 47a and 47b.

[0054] The sound insulation material 75 may be provided in the hollow portions 45 etc. of the vertical frames 12c and 12d instead of or together with the hollow portions 29 and 37. The sound insulation material 64 shown in FIGS. 1 to 5, the sound insulation material 70 shown in FIG. 6, and the sound insulation material 75 shown in FIG. 7 may be used in part or in whole in combination.

[0055] As described above, the fitting according to one aspect of the present invention is a fitting including a frame body and a shoji having a frame body and being rotatably supported with respect to the frame body, and is disposed in a gap formed between the prospective surface of the frame body and the prospective surface of the frame body facing each other with the shoji closed, or in an indoor side extension region of the gap, and includes a sound insulation material. According to such a configuration, for example, compared with a configuration in which the thickness of the profile forming the frame body is increased to be more than the required strength to ensure the sound insulation performance, it is possible to ensure the sound insulation performance while reducing the material cost and the product cost of the profile.

[0056] The frame body is arranged so as to block the indoor side of the gap, and includes a metal frame member provided with a door stop piece for receiving the shoji screen in the fully closed position, and a resin frame member provided on the indoor side of the metal frame member. The sound insulation material may be composed of a metal plate fixed to the metal frame member or the resin frame member. By doing so, the weight and thickness of the profile on the extension line of the gap that serves as the sound passage path can be increased by the sound insulation material which is a metal plate, and the sound insulation performance can be improved.

[0057] The metal plate may be fixed to the door stop piece. By doing so, the installation of the metal plate is easy, and the gap serving as the noise path can be surely shielded.

[0058] The frame body has a hollow portion in which at least a part of the wall portion surrounding the periphery is formed of the resin frame member, and the metal plate may be disposed in the hollow portion. By doing so, the metal plate is not exposed on the appearance, and the design property of the fitting can be enhanced.

[0059] The hollow portion is formed in the resin frame member, and the metal plate may be fixed to the resin frame member. By doing so, the weight of the resin frame member, which is lighter than the metal frame member, can be increased, and the sound insulation performance can be further enhanced.

[0060] The sound insulation material may be formed of a metal having a higher density than the materials forming the metal frame member and the resin frame member. By doing so, the weight of the profile can be effectively increased by the sound insulation material, and the sound insulation performance can be further enhanced.

[0061] The sound insulation material may be composed of a soft material attached to a plate material fixed to one of the prospective surfaces of the frame body and the prospective surface of the stile, and partitioning the gap in the indoor-outdoor direction by contacting the other prospective surface at the tip. By doing so, the sound insulation performance of the fitting can be enhanced with a simple configuration and low cost.

[0062] The frame body has a pair of upper and lower horizontal frames and a pair of left and right vertical frames, and the frame may be configured to include a gap formed between the prospective surfaces of the horizontal frame and the horizontal frame. In this way, the sound insulation performance at the gap between the horizontal frame and the horizontal frame, which has a great influence on the sound insulation performance, can be improved.

[0063] Note 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

[0064] 10, 10A, 10B fittings, 12 frame body, 12a upper frame, 12b lower frame, 12c, 12d vertical frames, 14 shoji, 18 metal frame members, 19 resin frame members, 26, 36, 44 door stop pieces, 29, 37, 45 hollow portions, 47 frame, 47a upper frame, 47b lower frame, 47c, 47d vertical frames, 64, 70, 75 sound insulation materials

Claims

1. A fitting comprising a frame body and a shoji screen having a frame and rotatably supported with respect to the frame body, comprising a sound insulation material disposed in a gap formed between the prospective surfaces of the frame body facing each other with the shoji screen closed and the prospective surface of the frame, or disposed in an indoor side extension region of the gap The fitting is characterized by this.

2. The fitting according to claim 1, wherein the frame body is a metal frame member provided with a door stop piece disposed so as to block the indoor side of the gap and receiving the shoji screen in the fully closed position, and a resin frame member provided on the indoor side of the metal frame member, and has, wherein the sound insulation material is a metal plate fixed to the metal frame member or the resin frame member The fitting is characterized by this.

3. The fitting according to claim 2, wherein the metal plate is fixed to the door stop piece The fitting is characterized by this.

4. The fitting according to claim 2, wherein the frame body has a hollow portion in which at least a part of a wall portion surrounding the periphery is formed of the resin frame member, and the metal plate is disposed in the hollow portion The fitting is characterized by this.

5. The fitting according to claim 4, wherein the hollow portion is formed in the resin frame member, and the metal plate is fixed to the resin frame member The fitting is characterized by this.

6. The fitting according to any one of claims 2 to 5, wherein the sound insulation material is formed of a metal having a higher density than the materials forming the metal frame member and the resin frame member The fitting is characterized by this.

7. The fitting according to claim 1, wherein the sound insulation material is attached to a plate member fixed to one of the prospective surfaces of the prospective surface of the frame body and the prospective surface of the frame, and is a soft material that partitions the gap in the indoor-outdoor direction by contacting the other prospective surface with its tip The fitting is characterized by this.

8. The fitting according to claim 1, wherein the frame body has a pair of upper and lower horizontal frames and a pair of left and right vertical frames, the frame has a pair of upper and lower horizontal frames and a pair of left and right vertical frames, and the gap includes a gap formed between the prospective surfaces of the horizontal frame and the prospective surfaces of the horizontal frame The fitting is characterized by this.

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