Fitting

Abstract

To provide a fitting whose assemblability and airtightness can be improved.SOLUTION: A fitting including a frame body having an upper frame, a lower frame, and right and left vertical frames, and a sash rotatably supported with respect to the frame body, includes: a first airtight material provided on the frame body and abutting an interior surface of the sash; and second airtight materials respectively provided between opposing depth faces of the upper frame and the sash and between opposing depth faces of the right and left vertical frames and the sash. The second airtight material between the upper frame and the sash is provided so as to protrude from the depth face of the upper frame toward the depth face of the sash at a midpoint in the depth direction of the sash, and the second airtight material between the right and left vertical frames and the sash is provided so as to protrude from the depth face of the sash toward the depth faces of the vertical frames at the midpoint in the depth direction of the sash.SELECTED DRAWING: Figure 2

Description

Technical Field

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

Background Art

[0002] In buildings and houses, etc., fittings such as opening windows having a structure in which a shoji screen is rotatably supported by a frame body may be installed. For example, Patent Document 1 discloses a fitting for a sliding window in which an airtight material that abuts on the indoor side surface of the shoji screen and an airtight material that abuts on the outdoor side end of the shoji screen are provided on the frame body respectively.

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, since airtight materials are provided at the outdoor side ends of the frame body and the shoji screen, the visible width of the fitting is increased and the design property is deteriorated. However, in this configuration, if only the visible width of the fitting is simply reduced, there is a concern that the shoji screen rotated against the airtight material at the outdoor side end strongly interferes with the airtight material, causing damage or deformation to the airtight material and deteriorating the airtightness.

[0005] On the other hand, in the opening window as described above, components such as a friction stay and a glemone lock used for rotating the shoji screen are installed between the frame body and the shoji screen. Therefore, in this type of fitting, considering the assemblability and airtightness, it is necessary to also consider the interference between these components and the airtight material.

[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 improving assemblability and airtightness.

Means for Solving the Problems

[0007] The fitting according to one aspect of the present invention is a fitting including a frame body having an upper frame, a lower frame, and left and right vertical frames, and a shoji supported rotatably with respect to the frame body, wherein a first airtight material provided on the frame body and abutting on the indoor side surface of the shoji, and second airtight materials provided respectively between the prospective surfaces of the upper frame and the shoji facing each other and between the prospective surfaces of the left and right vertical frames and the shoji facing each other, and the second airtight material between the upper frame and the shoji is provided so as to protrude from the prospective surface of the upper frame toward the prospective surface of the shoji at an intermediate position in the prospective direction of the shoji, and the second airtight material between the left and right vertical frames and the shoji is provided so as to protrude from the prospective surface of the shoji toward the prospective surface of the vertical frame at an intermediate position in the prospective direction of the shoji.

Effects of the Invention

[0008] According to the above aspect of the present invention, assemblability and airtightness can be improved.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0010] Hereinafter, preferred embodiments of the fitting according to the present invention will be given and described in detail with reference to the accompanying drawings.

[0011] As shown in FIGS. 1 to 3, a fitting 10 according to an 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, an example of the fitting 10 of a vertically sliding window in which the shoji 14 rotates with one of the left and right side edges as a rotation fulcrum and the other side edge projects toward the outdoor side is illustrated. The fitting according to the present application may be a sliding window or a projecting window such as a sliding window in which the shoji 14 rotates with the upper edge as a rotation fulcrum and the lower edge projects toward the outdoor side.

[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 the longitudinal direction thereof. 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 the longitudinal direction thereof. The finding plane refers to a plane along the finding direction. The inside of the frame refers to the inner part of a frame-shaped member such as the frame body 12. The outside of the frame refers to the outer part of a frame-shaped member such as the frame body 12.

[0014] 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 a 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 and 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 and 19d.

[0015] As shown in Fig. 2, 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 structure 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 structure with screws.

[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. The door stop piece 26 is a plate piece protruding from the prospective surface 24 toward 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. 2. A pocket portion that opens toward the outdoor side is provided at the tip side of the door stop piece 26, and a first airtight material 28 is attached to this pocket portion. The first airtight material 28 is a member that is in close contact with the indoor side surface of the shoji 14 and ensures airtightness and watertightness in the indoor-outdoor direction of the opening 16.

[0017] A second airtight material 30 is attached to the intermediate position in the prospective direction of the prospective surface 24 of the metal upper frame 18a. The second airtight material 30 is attached to a pocket portion that opens downward and is formed on the prospective surface 24. The second airtight material 30 protrudes toward the prospective surface 31 outside the frame of the shoji 14 and contacts the prospective surface 31. The metal upper frame 18a has a step 24a slightly on the indoor side from the intermediate position in the prospective direction of the prospective surface 24. The step 24a is formed by offsetting the portion closer to the indoor side of the prospective surface 24 inward of the frame more than the portion closer to the outdoor side. The second airtight material 30 is disposed outside the step 24a.

[0018] 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 outdoor side end portion of the resin upper frame 19a is engaged with the door stop piece 26 by an engaging portion 22a disposed inside the frame of the first airtight material 28, and encloses the tip of the door stop piece 26.

[0019] As shown in Fig. 2, 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 34 formed on the prospective surface outside the frame of the metal lower frame 18b, and is fixed to the building structure 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 36a and 36b, and the indoor side end portion is fixed to the building structure with screws.

[0020] A door stop piece 40 is provided at the indoor side end portion of the prospective surface 38 inside the frame of the metal lower frame 18b. The door stop piece 40 is a plate piece that protrudes from the prospective surface 38 to the inside (upward) of the frame. The door stop piece 40 is a portion that receives the shoji 14 in the fully closed position shown in Fig. 2. A pocket portion that opens toward the outdoor side is provided at the tip side of the door stop piece 40, and a first airtight material 28 is attached to this pocket portion. The metal lower frame 18b also has a step 38a slightly on the indoor side from the intermediate position in the prospective direction of the prospective surface 38. The step 38a is formed by offsetting the portion closer to the indoor side of the prospective surface 38 more inward of the frame than the portion closer to the outdoor side. The fitting 10 of this embodiment does not provide a second airtight material 30 to the lower frame 12b. Of course, a second airtight material 30 may be provided at the intermediate position in the prospective direction of the prospective surface 38 of the lower frame 12b as well as the upper frame 12a.

[0021] The resin lower frame 19b covers the upper end surface of the door stop piece 40 of the metal lower frame 18b and the portion on the indoor side thereof. The outdoor side end portion of the resin lower frame 19b is disposed inside the frame of the first airtight material 28. The resin lower frame 19b has an engagement portion 36a at the tip of a fin portion 41 that protrudes downward from the vicinity of the outdoor side end portion, and is engaged with the metal lower frame 18b.

[0022] As shown in Fig. 3, one vertical frame 12c is configured such that 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. A predetermined anchor component is connected to an anchor attachment portion 44 formed on the prospective surface outside the frame of the metal vertical frame 18c, 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 46a and 46b, and the indoor side end portion is fixed to the building body with screws.

[0023] A door stop piece 50 is provided at the indoor side end portion of the prospective surface 48 inside the frame of the metal vertical frame 18c. The door stop piece 50 is a plate piece protruding from the prospective surface 48 toward the inside of the frame. The door stop piece 50 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 50, and a first airtight material 28 is attached to this pocket portion. The metal vertical frame 18c has a step 48a slightly on the outdoor side rather than at the intermediate position in the prospective direction of the prospective surface 48. The step 48a is formed by offsetting the portion closer to the indoor side of the prospective surface 48 more inward of the frame than the portion closer to the outdoor side.

[0024] The resin vertical frame 19c covers the surface of the door stop piece 50 of the metal vertical frame 18c and the surface of the portion on the indoor side thereof. The outdoor side end portion of the resin vertical frame 19c is engaged with the door stop piece 50 by an engaging portion 46a disposed inside the frame of the first airtight material 28, and encloses the tip of the door stop piece 50.

[0025] As shown in Fig. 3, the other vertical frame 12d can have a structure symmetrical to that of one vertical frame 12c. Therefore, the same reference numerals as those of the components of the vertical frame 12c are given to the components of the vertical frame 12d, and detailed description thereof is omitted. That is, also in the vertical frame 12d, the resin vertical frame 19d is connected to the metal vertical frame 18d by the engaging portions 46a and 46b. Also, the vertical frame 12d also has a door stop piece 50 with the first airtight material 28 attached to the indoor side end portion of the prospective surface 48.

[0026] As shown in Figs. 1 to 3, the shoji 14 includes a face material 52, and a frame body 54 and a pressing edge 55 that surround the four peripheries of the face material 52.

[0027] The face material 52 is, for example, a two-layer laminated glass in which a pair of plate glasses 52a and 52b are opposed to each other with a spacer interposed therebetween. The face material 52 may be a single layer or may have a structure of three or more layers.

[0028] The frame 54 supports the face material 52 inside by forming a four-sided frame with the upper frame 54a, the lower frame 54b, and the left and right vertical frames 54c and 54d. The frame 54 is a composite structure frame that combines a metal frame material 58 disposed on the outdoor side and a resin frame material 59 disposed on the indoor side. The metal frame material 58 is an extruded shape of a metal material such as an aluminum alloy. The resin frame material 59 is an extruded shape of a resin material such as vinyl chloride resin (PVC). The metal frame material 58 includes a metal upper frame 58a, a metal lower frame 58b, and left and right metal vertical frames 58c and 58d. The resin frame material 59 includes a resin upper frame 59a, a resin lower frame 59b, and left and right resin vertical frames 59c and 59d.

[0029] The indoor side surface of the four peripheral edges of the face material 52 is supported by the metal frame material 58, and the outdoor side surface is supported by the pressing edge 55 attached to the outdoor side ends of the respective frames 54a to 54d. The space between the metal frame material 58 and the pressing edge 55 and the face material 52 is sealed with, for example, a backup material and a sealing material. The pressing edge 55 is an extruded shape of a metal material such as an aluminum alloy. The pressing edge 55 is connected to the prospective surface inside the frame of each of the frames 54a to 54d using the engaging portion 61.

[0030] As shown in FIG. 2, the upper frame 54a has a configuration in which the resin upper frame 59a is connected to the indoor side of the metal upper frame 58a. The resin upper frame 59a covers the indoor side surface of the metal upper frame 58a. The resin upper frame 59a is connected to the metal upper frame 58a by, for example, a pair of engaging portions 62a and 62b.

[0031] The metal upper frame 58a has a second airtight material 30 that protrudes from the prospective surface 24 of the upper frame 12a and abuts against the intermediate position in the prospective direction of the prospective surface 31. The metal upper frame 58a has a step 31a that is somewhat on the indoor side relative to the intermediate position in the prospective direction of the prospective surface 31 on the outer side of the frame. The step 31a offsets the part of the prospective surface 31 closer to the indoor side to the inner side of the frame relative to the part closer to the outdoor side. The second airtight material 30 abuts against the outdoor side of the step 31a of the prospective surface 31.

[0032] The resin upper frame 59a covers the surface of the part on the indoor side of the facing material 52 of the metal upper frame 58a. The first airtight material 28 of the upper frame 12a abuts against the finding surface 64 on the indoor side of the resin upper frame 59a. The indoor side end of the resin upper frame 59a is engaged with the metal upper frame 58a by an engaging portion 62a arranged on the inner side (lower side) of the frame relative to the abutting position of the first airtight material 28.

[0033] As shown in FIG. 2, the lower frame 54b can have a structure symmetric to the upper frame 54a in the vertical direction. Therefore, the same reference numerals are given to the respective components of the lower frame 54b as those of the respective components of the upper frame 54a, and detailed description is omitted. That is, also in the lower frame 54b, the resin lower frame 59b is connected to the metal lower frame 58b by engaging portions 62a, 62b. Also in the lower frame 54b, the first airtight material 28 of the lower frame 12b abuts against the finding surface 64 on the indoor side of the metal lower frame 58b.

[0034] As shown in FIG. 3, one of the vertical frames 54c has a configuration in which a resin vertical frame 59c is connected to the indoor side of the metal vertical frame 58c. The resin vertical frame 59c covers the indoor side surface of the metal vertical frame 58c. The resin vertical frame 59c is connected to the metal vertical frame 58c by, for example, a pair of engaging portions 66a, 66b.

[0035] The metal vertical frame 58c has the second airtight material 30 mounted at an intermediate position in the prospective direction of the prospective surface 68 on the outer side of the frame. The second airtight material 30 is mounted in a pocket portion formed in the prospective surface 68 and opening laterally. The second airtight material 30 projects toward the prospective surface 48 of the vertical frame 12d and contacts the prospective surface 48. The metal vertical frame 58c has a step 68a somewhat closer to the indoor side than the intermediate position in the prospective direction of the prospective surface 68. The step 68a is formed by offsetting the portion of the prospective surface 68 closer to the indoor side inward of the frame more than the portion closer to the outdoor side. The second airtight material 30 is disposed on the outdoor side of the step 68a.

[0036] The resin vertical frame 59c covers the surface of the portion of the metal vertical frame 58c that is closer to the indoor side than the facing material 52. The first airtight material 28 of the vertical frame 12c abuts against the finding surface 70 on the indoor side of the resin vertical frame 59c. The indoor side end of the resin vertical frame 59c is engaged with the metal vertical frame 58c by an engaging portion 66a disposed more inward of the frame than the abutting position of the first airtight material 28.

[0037] As shown in FIG. 3, the other vertical frame 54d can have a structure symmetrical to that of the vertical frame 54c. Therefore, the same reference numerals are given to the respective components of the vertical frame 54d as those of the vertical frame 54c, and detailed description thereof is omitted. That is, also in the vertical frame 54d, the resin vertical frame 59d is connected to the metal vertical frame 58d by engaging portions 66a and 66b. Also in the vertical frame 54d, the first airtight material 28 of the vertical frame 12d abuts against the finding surface 70 on the indoor side of the metal vertical frame 58d. Further, also in the vertical frame 54d, the second airtight material 30 is mounted at an intermediate position in the prospective direction of the prospective surface 68 on the outer side of the frame.

[0038] As shown in Fig. 2, the shoji 14 is pivotally connected to the frame body 12 via upper and lower friction stays 72. The upper friction stay 72 connects the indoor-side portion of the upper frame 12a from the step 24a of the prospective surface 24 and the indoor-side portion of the upper sash 54a from the step 31a of the prospective surface 31. This friction stay 72 is disposed on the indoor side of the second airtight material 30 disposed at the intermediate position in the prospective direction of the shoji 14. The lower friction stay 72 connects the indoor-side portion of the lower frame 12b from the step 38a of the prospective surface 38 and the indoor-side portion of the lower sash 54b from the step 31a of the prospective surface 31.

[0039] As shown in Fig. 3, a gremon lock 74 is provided between the vertical frame 12c and the vertical sash 54c on the door tip side. The gremon lock 74 is provided between the indoor-side portion of the vertical frame 12c from the step 48a of the prospective surface 48 and the indoor-side portion of the vertical sash 54c from the step 68a of the prospective surface 68. The gremon lock 74 is disposed on the indoor side of the second airtight material 30 disposed at the intermediate position in the prospective direction of the shoji 14. The reference numeral 74a in Fig. 3 is the operation handle of the gremon lock 74 (see also Fig. 1).

[0040] A shoji pulling device 76 is provided between the vertical frame 12d and the vertical sash 54d on the hanging end side. The shoji pulling device 76 is a device that pulls the shoji 14 to the fully closed position when the shoji 14 is closed. The shoji pulling device 76 is provided between the indoor-side portion of the vertical frame 12d from the step 48a of the prospective surface 48 and the indoor-side portion of the vertical sash 54d from the step 68a of the prospective surface 68. The shoji pulling device 76 is disposed on the indoor side of the second airtight material 30 disposed at the intermediate position in the prospective direction of the shoji 14.

[0041] Thus, in the fitting 10 of this embodiment, the airtight materials for ensuring airtightness and watertightness between the frame body 12 and the shoji 14 can be only the first airtight material 28 and the second airtight material 30. In other words, the fitting 10 does not provide an airtight material at the outdoor finding surface 78 which is the outdoor end portion of the shoji 14 and its vicinity (see Figs. 2 and 3).

[0042] Next, the opening / closing operation and the operation effects of the shoji 14 will be described.

[0043] FIG. 4 is a longitudinal sectional view illustrating the opening / closing locus of the shoji 14, and is an enlarged view of the vertical frame 12d and the vertical stile 54d on the suspension side and their peripheral portions. In FIG. 4, "shoji 14" shows the state where the shoji 14 is in the fully closed position. "Shoji 14A" shows the state where the shoji 14 is slightly opened to the outdoor side, and "shoji 14B" shows the state where the shoji 14 is opened further to the outdoor side than the shoji 14A. Also in FIG. 4, each component of the shoji 14A and 14B is illustrated by adding A and B to the reference numerals of the components corresponding to the components of the shoji 14, respectively. Specifically, for the components of the shoji 14A, "vertical stile 54A" corresponds to the vertical stile 54d, "pressing edge 55A" corresponds to the pressing edge 55, "second airtight material 30A" corresponds to the second airtight material 30, and "finding surface 78A" corresponds to the finding surface 78. Similarly, for the components of the shoji 14B, "vertical stile 54B" corresponds to the vertical stile 54d, "pressing edge 55B" corresponds to the pressing edge 55, "second airtight material 30B" corresponds to the second airtight material 30, and "finding surface 78B" corresponds to the finding surface 78.

[0044] As shown in FIGS. 2 and 3, in the fitting 10 of the present embodiment, second airtight materials 30 are provided at the upper part and the left and right side parts of the shoji 14, respectively. All of these second airtight materials 30 are in contact with the intermediate position in the prospective direction of the shoji 14 or are mounted at the intermediate position in the prospective direction of the shoji 14.

[0045] Therefore, as shown in FIG. 4, when the shoji 14 in the fully closed position is opened to the position of the shoji 14A and further gradually opened toward the fully open position to the position of the shoji 14B, the second airtight material 30 mounted on the prospective surface 68 of the vertical stile 54d draws a movement locus of gradually separating from the prospective surface 48 of the vertical frame 12d. The second airtight material 30 mounted on the prospective surface 68 of the vertical stile 54c also draws a movement locus of gradually separating from the prospective surface 48 of the vertical frame 12c. Also, the prospective surface 31 of the upper stile 54a of the shoji 14 draws a movement locus of gradually separating from the prospective surface 24 of the upper frame 12a which is the contact target.

[0046] Thus, in the fitting 10, the second airtight material 30 is not strongly pressed against the prospective surfaces 31 and 48 that are the contact targets when the shoji 14 is opened and closed. Therefore, the fitting 10 can suppress damage or deformation of the second airtight material 30 when the shoji 14 is opened and closed, and can suppress a decrease in its airtightness even when subjected to repeated opening and closing operations. That is, consider a configuration in which an airtight material is provided at the outdoor side end portion (the finding surface 78 and its vicinity) of the shoji 14. In this configuration, as is clear from the arrangement of the finding surface 78A of the shoji 14A in FIG. 4, there is a concern that the airtight material at the outdoor side end portion may be strongly pressed against the frame body 12, resulting in damage or deformation and loss of airtightness. On the other hand, the fitting 10 of the present embodiment can avoid the occurrence of such a problem of decreased airtightness.

[0047] In the fitting 10 of the present embodiment, no airtight material is provided at the outdoor side end portions of the frame body 12 and the shoji 14. Therefore, the fitting 10 can minimize the finding width of the finding surface 78 on the outdoor side of the shoji 14 and the finding surface on the outdoor side of the frame body 12. Furthermore, since the second airtight material 30 is not exposed in terms of appearance, there is also an advantage that a clean and highly designed appearance can be obtained.

[0048] Here, in the fitting 10 of the present embodiment, the second airtight material 30 between the upper frame 12a and the shoji 14 is provided so as to protrude from the prospective surface 24 of the upper frame 12a toward the prospective surface 31 of the shoji 14. On the other hand, the second airtight material 30 between the left and right vertical frames 12c and 12d and the shoji 14 is provided so as to protrude from the prospective surface 68 of the shoji 14 toward the prospective surfaces 48 of the vertical frames 12c and 12d.

[0049] That is, the fitting 10 is suitable for a window in which the shoji rotates toward the outdoor side, such as a vertically sliding window, a sliding window, or a projecting window. In such a fitting 10, when the second airtight material 30 is attached to the frame body 12 side, there is an increased concern that the second airtight material 30 interferes with the components involved in the rotation of the shoji 14, such as the friction stay 72, the gremon lock 74, and the shoji pulling device 76, which reduces the assemblability of the fitting 10. Therefore, in the present embodiment, the second airtight material 30 on the vertical frames 12c and 12d sides is attached to the shoji 14 side to avoid interference between the above components and the second airtight material 30 and improve the assemblability. On the other hand, if the second airtight material 30 on the upper frame 12a side is attached to the shoji 14 side, it becomes difficult to form an airtight line at the boundary position (corner) with the second airtight material 30 on the vertical frames 12c and 12d sides. That is, it becomes difficult to handle the joining of the second airtight materials 30 in the vertical and horizontal directions. Therefore, in the present embodiment, the second airtight material 30 on the upper frame 12a side is attached to the upper frame 12a. Thereby, the fitting 10 can achieve both assemblability and airtightness.

[0050] In the fitting 10, the above components are arranged on the indoor side of the second airtight material 30 provided at the intermediate position in the expected direction of the shoji 14. For this reason, there is also an advantage that it is possible to suppress these components from rusting and malfunctioning due to the influence of wind, rain, etc.

[0051] As described above, the fitting according to one aspect of the present invention is a fitting including a frame body having an upper frame, a lower frame, and left and right vertical frames, and a shoji door rotatably supported with respect to the frame body, wherein a first airtight material provided on the frame body and abutting against the indoor side surface of the shoji door, and second airtight materials respectively provided between the upper frame and the prospective surfaces facing each other of the shoji door, and between the left and right vertical frames and the prospective surfaces facing each other of the shoji door, and the second airtight material between the upper frame and the shoji door is provided so as to protrude from the prospective surface of the upper frame toward the prospective surface of the shoji door at an intermediate position in the prospective direction of the shoji door, and the second airtight material between the left and right vertical frames and the shoji door is provided so as to protrude from the prospective surface of the shoji door toward the prospective surface of the vertical frame at an intermediate position in the prospective direction of the shoji door. According to such a configuration, since the second airtight material is disposed at the intermediate position in the prospective direction of the shoji door, it is possible to suppress the second airtight material from being strongly pressed against the prospective surface of the other side when the shoji door is opened and closed, and to suppress a decrease in airtightness. Moreover, the second airtight material at the upper part of the shoji door is provided so as to protrude from the prospective surface of the upper frame toward the prospective surface of the shoji door, and the second airtight material at the side part of the shoji door is provided so as to protrude from the prospective surface of the shoji door toward the prospective surface of the vertical frame. Thereby, the fitting can balance an improvement in assemblability due to an effect of suppressing interference between the second airtight material and the components involved in the rotation of the shoji door, and an improvement in airtightness due to the formation of an airtight line between the second airtight materials at the upper part and the side part. Note that the intermediate position in the prospective direction of the shoji door is a concept including not only the central position in the prospective direction of the shoji door but also positions near the center.

[0052] The shoji door may be supported by the frame body so as to rotate toward the outdoor side, and an airtight material may not be provided at the outdoor side end of the prospective surfaces facing each other between the frame body and the shoji door. By doing so, it is possible to suppress the finding width on the outdoor side of the shoji door and the frame body, and to improve the design property.

[0053] It may be configured such that a component that is provided between the facing prospective surfaces of the frame body and the shoji screen and is involved in the rotation of the shoji screen is disposed on the indoor side of the second airtight material disposed at an intermediate position in the prospective direction of the shoji screen. By doing so, it is possible to suppress the component involved in the rotation of the shoji screen from being affected by wind, rain, etc. and rusting or malfunctioning.

[0054] 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 Signs

[0055] 10 Fittings, 12 Frame body, 12a Upper frame, 12b Lower frame, 12c, 12d Vertical frames, 14, 14A, 14B Shoji screens, 28 First airtight material, 30, 30A, 30B Second airtight materials, 54 Frame body, 54a Upper frame, 54b Lower frame, 54c, 54d, 54A, 54B Vertical frames, 72 Friction stay, 74 Gremon lock, 76 Shoji screen attracting device

Claims

1. A fitting comprising a frame body having an upper frame, a lower frame, and left and right vertical frames, and a shoji door rotatably supported with respect to the frame body, a first airtight material provided on the frame body and abutting against the indoor-side surface of the shoji door, and second airtight materials respectively provided between the opposing prospective surfaces of the upper frame and the shoji door and between the opposing prospective surfaces of the left and right vertical frames and the shoji door, characterized in that the second airtight material between the upper frame and the shoji door is provided so as to protrude from the prospective surface of the upper frame toward the prospective surface of the shoji door at an intermediate position in the prospective direction of the shoji door, and the second airtight material between the left and right vertical frames and the shoji door is provided so as to protrude from the prospective surface of the shoji door toward the prospective surface of the vertical frame at an intermediate position in the prospective direction of the shoji door. A fitting characterized by the above.

2. The fitting according to claim 1, wherein the shoji door is supported by the frame body so as to rotate toward the outdoor side, and no airtight material is provided at the outdoor-side end of the opposing prospective surfaces of the frame body and the shoji door. A fitting characterized by the above.

3. The fitting according to claim 1 or 2, wherein a component involved in the rotation of the shoji door is provided between the opposing prospective surfaces of the frame body and the shoji door, and the component is disposed on the indoor side of the second airtight material disposed at an intermediate position in the prospective direction of the shoji door. A fitting characterized by the above.

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