Doors and windows

Abstract

To provide building materials that promote the use of wood, improve insulation performance, reduce costs, and minimize product lifespan. [Solution] The door 10 comprises a frame 12 whose four sides are framed by frame material, and a shoji screen 14 disposed on the frame 12, in which the four sides of the panel 26 are framed by frame material. The frame 12 is made of resin material, and the frame 24 is made of wood in an area W12 that extends from at least the indoor side facing surface 80a to the indoor side facing surface 82bc of the outdoor panel holding piece 82b that holds the panel 26 from the outdoor side. The shoji screen 14 is equipped with an electric cremone bolt 50 on the frame material, and a control unit 38 for controlling the electric cremone bolt 50 is provided on the frame 12 or outside the frame, and the electric cremone bolt 50 and the control unit 38 are connected by a first electric wire 56, and an electric wire storage groove 76 for housing the first electric wire 56 is formed along the longitudinal direction on the outer surface facing the wooden part of the frame material.

Description

Technical Field

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

Background Art

[0002] There is known a fitting including a frame body framed by frame members on all four sides and a shoji disposed in the frame body and framed by frame members on all four sides of a facing material. Among such fittings, those shown in Patent Documents 1 and 2 are called drake chips and have two opening and closing functions: an inwardly inverted type that opens by rotating horizontally inward and an inwardly opening type that opens by rotating vertically inward. The fitting of Patent Document 1 has a frame body and a frame made of a metal material, but there are also fittings made of wood. The fitting of Patent Document 2 has an electric mechanism and can automatically open and close the shoji.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, there has been a call to promote the distribution and use of legally logged timber and the like. This has the significance of enabling the continuous发挥 of the multifaceted functions of forests, such as the conservation of the country's land, the retention of water sources, the conservation of the natural environment, the public's health, the prevention of global warming, and the supply of forest products, thereby contributing to the conservation of the regional and global environments (the basic policy of Article 1, Paragraph 3 of the Law on Promotion of Distribution and Use of Legally Logged Timber and the Like). Therefore, it is desirable to actively use wood in fittings. Also, by using wood in fittings, the heat insulation performance can be improved.

[0005] On the other hand, wood can be more expensive than resin materials, potentially increasing product prices. Furthermore, using wood in building components raises concerns about reduced product lifespan due to damage to exposed areas.

[0006] This invention has been made in view of the above-mentioned problems, and aims to provide building materials that can promote the use of wood, improve thermal insulation performance, reduce costs, and suppress the reduction in product lifespan. [Means for solving the problem]

[0007] To solve the above-mentioned problems and achieve the objective, the present invention provides a joinery comprising a frame body whose four sides are framed by frame material, and a shoji screen disposed on the frame body, the shoji screen having its four sides framed by frame material, wherein the frame material is made of resin material, and the frame material is made of wood in an area extending from the indoor-facing surface of the frame material to the indoor-facing surface of the portion that holds the shoji screen material from the outdoor side. [Effects of the Invention]

[0008] In this invention, a predetermined portion of the frame material, including at least the interior-facing surface, is made of wood, promoting the use of wood and improving thermal insulation performance. On the other hand, the frame body is made of resin material, which is less expensive than wood, thus keeping costs down. Furthermore, although the lower frame tends to accumulate water more easily than the upper frame, etc., since it is made of resin material, corrosion is almost nonexistent, which helps to suppress the reduction in product lifespan. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram of a door or window, which is an embodiment of the present invention, as seen from the interior side. [Figure 2] This is a perspective view of a door or window in an inward-opening position. [Figure 3] This is a perspective view of a door or window in an inward-tilting position. [Figure 4] This is a perspective view of a shoji screen. [Figure 5] This is a disassembled perspective view of a shoji screen. [Figure 6] This is a vertical cross-section of the door / window. [Figure 7] This is a schematic cross-sectional view of the left vertical frame. [Figure 8] This is a schematic vertical cross-section of the bottom frame. [Figure 9] This is a vertical cross-sectional view of the lower part of an example where a modified frame is combined with a shoji screen. [Modes for carrying out the invention]

[0010] The embodiments of the building components according to the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to these embodiments.

[0011] In the following, for convenience, the terms "depth direction" and "face direction" may be used. The depth direction (indicated by arrow Z in the figure) is the direction of interior and exterior along the depth of the joinery 10. Surfaces and walls along the depth direction may be called the depth surface and depth wall. The face direction is the direction along the vertical direction perpendicular to the depth direction (indicated by arrow Y in the figure) for parts that extend horizontally, such as the top frame, bottom frame, top stile, bottom stile, etc., and the direction along the horizontal direction perpendicular to the depth direction (indicated by arrow X in the figure) for parts that extend vertically, such as the vertical frame and vertical stile. Surfaces and walls along the face direction may be called the face surface and face wall. A single arrow Y indicates the upward direction, and a single arrow Z indicates the exterior direction. In this embodiment, left and right are based on Figure 1.

[0012] Figure 1 is a schematic diagram of a door 10, an embodiment of the present invention, as seen from the interior side. Figure 2 is a perspective view of the door 10 in an inward-opening state. Figure 3 is a perspective view of the door 10 in an inward-tilting state. The door 10 has a frame 12 fixed to an opening in the wall of a building, and a sliding door 14 provided on the inner circumference side of the frame 12.

[0013] The fitting 10 is a drake-up window. The shoji 14 opens inwardly with one side (the right side in FIG. 1 in this embodiment) as the hanging end and the other side (the left side in FIG. 1 in this embodiment) as the door end (see FIG. 2), and the upper part falls inwardly with reference to the lower part of the shoji 14 (see FIG. 3). That is, the shoji 14 is configured to be able to open and close in two different directions. The fitting 10 may be a sliding window or the like.

[0014] The shoji 14 is configured by disposing a panel 26 inside a frame body 24 formed by surrounding a lower frame 16, an upper frame 18, a left vertical frame 20, and a right vertical frame 22. In this embodiment, the panel 26 is triple glazing. The lower frame 16, the upper frame 18, the left vertical frame 20, and the right vertical frame 22 have the same cross-sectional shape.

[0015] The frame body 12 is configured by surrounding a lower frame 28, an upper frame 30, a left vertical frame 32, and a right vertical frame 34. A handle 36 is provided at a substantially middle height on the left side of the shoji 14 in FIG. 1. The handle 36 faces downward in the locked state, and when rotated 90 degrees counterclockwise, it can be opened inwardly, and when rotated 180 degrees, it can be tilted inwardly. Each frame member of the frame body 12 is an extruded resin material, such as vinyl chloride, and is configured to have a substantially uniform cross-sectional shape over the entire length along the longitudinal direction. A part or the entire surface of the frame body 12 may be covered with paint, a decorative sheet, a decorative board, or the like. The decorative board will be described later (see FIG. 9).

[0016] Each frame member of the frame body 24 is made of legally harvested wood, such as hinoki, cedar, or hiba, and may be any of solid wood, laminated wood, or plywood. Generally, the design of wood is considered preferable, but a part or the entire surface of the frame body 24 may be covered with paint, a decorative sheet, a decorative board, or the like. The lower frame 16, the upper frame 18, the left vertical frame 20, and the right vertical frame 22 have a 45-degree butt joint shape at their ends and are fixed by adhesion and dowels or screws or the like to form the frame body 24. The joining of the frame members may also be a rabbet joint or the like.

[0017] In addition to being manually opened and closed, the shutter 10 can be automatically opened inwards and tilted inwards under the action of the control unit 38. The control unit 38 is provided on or outside the frame body 12. In this embodiment, it is provided near the right vertical frame 34 on the hanging side of the shoji 14. In addition to the function of controlling the electric mechanism 46 and the electric gremon lock 50 described later, the control unit 38 is connected to the Internet 40 to realize functions such as remote operation or automatic operation of the Internet of Things (IoT). As an example of this function, the shoji 14 can be opened and closed based on the weather information received from the external server 42 or based on the command from the smartphone 44. The control unit 38 is provided with an opening and closing switch for the shoji 14. The control unit 38 may be provided with a diagnostic function or the like. The connection between the control unit 38 and the Internet 40 may be either wired or wireless.

[0018] An electric mechanism 46 for automatically opening and closing the shoji 14 is provided on the upper frame 30. The electric mechanism 46 swings the arm 48 (see FIGS. 2 and 3) by rotating the internal motor 46a forward and backward to open and close the shoji 14. An electric gremon lock (electrical component) 50 is provided on the left vertical frame 20 on the door tip side. The electric gremon lock 50 operates the door tip lock mechanisms 52a, 52b, the upper lock mechanism 54a provided on the upper side of the shoji 14, and the lower lock mechanism 54b provided on the lower side by rotating the handle 36 or the internal motor 46a forward and backward. When locking, all four lock mechanisms 52a, 52b, 54a, 54b are locked. When opening inwards, the door tip lock mechanisms 52a, 52b and the lower lock mechanism 54b are released, and the upper lock mechanism 54a is locked. When tilting inwards, the door tip lock mechanisms 52a, 52b and the upper lock mechanism 54a are released, and the lower lock mechanism 54b is locked.

[0019] The control unit 38 and the motor 50a of the electric gremon lock 50 are connected by a first electric wire 56. The first electric wire 56 is housed so as to pass through the wire housing grooves 76 (see FIG. 5) formed in the lower frame 16 and the left vertical frame 20. The first electric wire 56 has an appropriate extra length corresponding to the opening and closing of the shoji . The control unit 38 and the motor 46a of the electric mechanism 46 are connected by a second electric wire 58. The second electric wire 58 passes through the right vertical frame 34 and the upper frame 30.

[0020] Figure 4 is a perspective view of the shoji screen 14. Figure 5 is an exploded perspective view of the shoji screen 14. Figure 6 is a vertical cross-sectional view of the joinery 10. The handle 36 is attached to the electric cremone bolt 50 via the handle base 36a. The electric cremone bolt 50 moves the upper and lower vertical interlocking members 60a and 60b up and down. Right-angle corner drives 62a and 62b are provided at the upper and lower corners of the shoji screen 14, which convert the movement of the vertical interlocking members 60a and 60b to the horizontal direction, causing the horizontal interlocking member 60c and slider piece 62ba to move horizontally. The interlocking members 60a to 60c are members that select the opening and closing direction of the shoji screen 14 by sliding displacement, and have a thin plate shape in plan view.

[0021] The upper corner drive 62a is provided with a vertically oriented slider piece 62aa at the point where it connects to the vertical interlocking member 60a. A locking pin 52aa is provided on the slider piece 62aa. The lower corner drive 62b is provided with a horizontally oriented slider piece 62ba. A locking pin 54ba is provided on the slider piece 62ba. A locking pin 52ba is provided on the vertical interlocking member 60b. The slider pieces 62aa and 62ba have the same cross-sectional shape as the interlocking members 60a to 60c, with both ends in the depth direction being crank-shaped to form a guided projection 66, and a shallow recess 68 is formed on the side facing the frame material. A fixing seat 68a (see Figure 7) for fixing the locking pins 52aa, 54ba, and 52ba is positioned in the recess 68.

[0022] The locking pins 52aa, 54ba, and 52ba are part of the locking mechanisms 52a, 54b, and 52b. They are locked when displaced and engage with predetermined engagement grooves, and released when disengaged from the engagement grooves. The locking mechanism 54a is similar, although it is not shown in the illustration.

[0023] Attachments 64 are provided on the outer perimeter surfaces of the left vertical frame 20, the upper frame 18, and the lower frame 16. The upper part of the electric cremone bolt 50 is designated as attachment 64A, the lower part as attachment 64B, the one provided on the upper frame 18 as attachment 64C, and the one provided on the lower frame 16 as attachment 64D.

[0024] Attachment 64A extends over almost the entire length above the electric cremone bolt 50 and guides the vertical interlocking member 60a and the slider piece 62aa. Attachment 64B extends over almost the entire length below the electric cremone bolt 50 and guides the vertical interlocking member 60b. Attachment 64C extends over almost the entire length of the upper frame 18 and guides the horizontal interlocking member 60c. Attachment 64D extends over almost the entire length of the lower frame 16 and guides the slider piece 62ba.

[0025] The attachment 64 is a profile made of aluminum alloy or the like, with a flattened cross-sectional shape (see Figure 7). T-shaped portions 70 are formed at both ends in the depth direction, and a guide 74 is formed between it and the bottom wall 72, into which the guided projection 66 fits. In other words, the guide 74 guides the interlocking member 60 and the slider piece 62 to slide freely. A screw insertion hole 72a is formed in the bottom wall 72, and a countersunk screw (fixing device) 75 is inserted through it and screwed into the frame material. The screw insertion hole 72a is countersunk, so the head of the countersunk screw 75 does not protrude and does not interfere with the fixing seat 68a. Both ends of the bottom wall 72 in the depth direction are chamfered.

[0026] As described above, the first electric wire 56 is housed and wired through electric wire storage grooves 76 formed in the lower frame 16 and the left vertical frame 20, and is connected to the electric cremone bolt 50 via a connector 56a. Each frame material is basically solid wood, and forming a hollow section would increase processing costs and raise concerns about reduced strength, so the electric wire storage grooves 76 are formed on the outer surface along the longitudinal direction of the profile. An upper hinge 78 is provided at the top of the sliding door 14. Reference numeral 79 denotes a wiring cover that covers the first electric wire 56 at the corner of the sliding door 14.

[0027] In this embodiment, the entire frame 12, including the interior-facing surface 12a (see Figure 6), is made of resin. The interior-facing surface 12a is the part exposed to the interior side, but because the sealing piece 82d of the shoji screen 14 protrudes more than it, the interior-facing surface 12a is in a relatively recessed position and is not very noticeable, at least when the shoji screen 14 is closed, and the difference in design texture from the wooden frame materials is not very noticeable.

[0028] Figure 7 is a schematic cross-sectional view of the left vertical frame 20. Figure 8 is a schematic vertical cross-sectional view of the bottom frame 16. In the following description, the bottom frame 16, top frame 18, left vertical frame 20, and right vertical frame 22 will also be referred to as frame material 80. The wire storage groove 76 has a square cross-section, for example, about 8 x 8 mm. The diameter of the first wire 56 is for example about 6 mm. The first wire 56 passes through the wire storage groove 76 formed in the bottom frame 16 between the left vertical frame 20 and the right vertical frame 22. Since the wire storage groove 76 has a downward opening, water does not accumulate and there is no concern about corrosion.

[0029] The opening of the wire storage groove 76 is covered by the attachment 64, protecting the first wire 56 and preventing it from shifting or becoming loose. In other words, the attachment 64 functions as a cover. The attachment 64 is fixed to the wood portion by a countersunk screw 75 at its center in the projection direction, and the wire storage groove 76 is positioned offset to the outside from the countersunk screw 75, so that the countersunk screw 75 does not damage the first wire 56. The attachment 64 has a symmetrical shape and can be applied in reverse.

[0030] In the door 10, the shoji screen 14 opens inward and tilts inward, so the frame 24 is positioned slightly closer to the interior relative to the frame 12 (see Figure 6). Also, due to the relationship of fitting with the frame 12, the interior depth of the frame 24 tends to be narrower than the exterior depth, using the panel 26 as a reference. The interlocking material 60 and attachment 64 also become narrower on the interior side when combined with the panel 26. The wire storage groove 76 is provided on the exterior side of the countersunk screw 75, so the distance to the interior and exterior depth surfaces of the frame material 80 is almost equal, and neither side becomes thinner or weaker.

[0031] The frame material 80 is joined to a large first part 82 and a smaller second part 84. The central part 82a of the first part 82 has a moderate thickness in both depth and face width, providing sufficient strength. In this embodiment, the depth of the first part 82 is about twice that of the panel 26, and the face width is about twice that of the countersunk screw 75. An outdoor panel retaining piece 82b protrudes inward from the outdoor side of the first part 82. The face width of the outdoor panel retaining piece 82b, i.e., the amount of protrusion, is long enough to hold the edge of the panel 26. The depth of the outdoor panel retaining piece 82b is about the same as the face width, ensuring strength.

[0032] A notch 82c is formed on the outdoor and outer periphery side of the central portion 82a, which is sealed between it and the frame 12 (see Figure 6). A sealing piece 82d protrudes from the indoor side of the central portion 82a toward the outer periphery. The sealing piece 82d is sealed between it and the frame 12 (see Figure 6). A shallow recess 82e is formed on the outer periphery surface of the central portion 82a, where the attachment 64 is placed. Both ends of the recess 82e in the depth direction are shaped to fit the T-shaped portion 70. A wire storage groove 76 is formed on the outdoor side of the recess 82e, opening toward the outer periphery.

[0033] A joint notch 82f is formed on the indoor and inner circumference side of the central portion 82a, into which the second portion 84 is joined. The second portion 84 is fitted into the joint notch 82f and joined, protruding toward the inner circumference. The second portion 84 is the part that holds the edge of the panel 26 from the indoor side, and the amount of protrusion toward the inner circumference is equal to that of the outdoor panel holding piece 82b.

[0034] A panel holding space 86 is formed, enclosed on three sides by the inner circumferential surface 82g of the central part 82a, the outdoor panel holding piece 82b, and the second part 84. The edge of the panel 26 is held in place by a seal 88 between the outdoor panel holding piece 82b and the second part 84, and a setting block 90 between it and the inner circumferential surface 82g. The inner circumferential surface 82g corresponds to the bottom surface of the panel holding space 86. The second part 84 has a function similar to that of a trim. Unlike the second part 84, a typical trim occupies not only the portion that protrudes inward from the inner circumferential surface 82g, but also the portion that fits into the joining notch 82f due to the structural reasons for joining it to the object, extending beyond the inner circumferential surface 82g to the outer periphery.

[0035] In this embodiment, the joinery 10 has a frame 80 in which the entirety of the first part 82 and the second part 84 are made of wood, promoting the use of wood and improving thermal insulation performance. On the other hand, the frame 12 is made of resin material, which is cheaper than wood, so the price can be kept down. In addition, although the lower frame 28 tends to accumulate water more easily than the upper frame 30, etc., since it is made of resin material, there is almost no corrosion, and the reduction in the product's lifespan can be suppressed.

[0036] From the perspective of promoting the use of wood, it is desirable that the entire width W0 of the frame material 80 be made of wood, but depending on the conditions, a portion may be made of other resin or metal materials. This will be explained below.

[0037] The exterior facing surface 82ba and the recessed surface 82bb of the exterior panel retaining piece 82b are exposed to the outside. For this reason, considering weather resistance, the exterior panel retaining piece 82b, which is exposed to the outside and holds the edge of the panel 26 from the outside, may be made of metal or resin. If this part is made of a different material, it will be necessary to use the same material to some extent towards the outer perimeter, similar to the trim. Considering various design conditions, it is preferable to make the area W11, which has the same recessed width as the exterior panel retaining piece 82b, out of metal or resin, and make at least the remaining area W12 out of wood. W12 > W11, which contributes to promoting the use of wood. However, since the metal or resin material provided in the area W11 will be fixed to the wood in the area W12, there is no reason to prevent the fixing piece necessary for fixing from protruding to the interior beyond the W11 area.

[0038] The depth W12 range is the area extending from the indoor facing surface 80a of the frame material 80 to the indoor facing surface 82bc of the outdoor panel holding piece 82b that holds the panel 26 from the outdoor side. By having the depth W12 range composed of continuous material (laminated wood and plywood are considered to be substantially the same material), at least the inner perimeter depth surface 82g will be made of the same material. This part is the bottom surface of the panel holding space 86 and can be subjected to loads from the panel 26 due to wind, etc., but strength is ensured by the absence of material discontinuities. In particular, when the panel 26 is made of three layers of glass, the depth W12 becomes larger, which can promote the use of wood, and it is even more preferable for the material to be continuous when the inner perimeter depth surface 82g is large.

[0039] Furthermore, it is preferable that the joints between the frame members 80 that constitute the frame body 24 are made of wood. For example, if adjacent frame members 80 are fixed together with dowels, screws, etc., within a width W12 to form the frame shape of the frame body 24, this part becomes the main part, and the outdoor panel holding piece 82b made of resin or metal becomes an attachment or accessory part to the main part. If the main part is made of wood, the use of wood can be promoted. In addition, if the main part is made of continuous, identical members, the panel 26 can be stably supported.

[0040] Furthermore, the second section 84 on the interior side and the area of ​​its outer perimeter with a depth W2 are exposed to the interior, and a suitable design can be obtained by constructing them with wood, while adequate thermal insulation can be obtained even if the other parts are constructed with metal or other materials.

[0041] The electrical component to which the wires stored in the wire storage groove 76 are connected is not limited to the electric cremone bolt 50, but may also be, for example, a light fixture or a sensor.

[0042] Figure 9 is a vertical cross-sectional view of the lower portion of a modified frame 12A combined with a shoji screen 14. In this embodiment, a wooden decorative panel 92 is provided on the interior-facing surface 12Aa of the lower frame 28A and fixed to the lower frame 28A with countersunk screws 75. The decorative panel 92 is made of the same material as the frame material of the shoji screen, and there is no difference in texture between the two, which is aesthetically pleasing and gives a sense of unity. In particular, the interior-facing surface 12Aa is relatively easy to see when the shoji screen 14 is opened, and the provision of the decorative panel 92 provides an aesthetically pleasing texture.

[0043] The decorative panel 92 is primarily for aesthetic purposes, and its depth is set to be sufficiently smaller compared to the lower frame 28A. The same applies to the upper frame and vertical frame, although they are not shown in the illustration. This modified example also achieves the effects of promoting the use of wood, improving thermal insulation performance, reducing costs, and suppressing the reduction in product lifespan. Thus, in this invention, the frame material is basically composed of resin material, but from an aesthetic standpoint, there is no prejudice to adding small parts of other materials.

[0044] The present invention is not limited to the embodiments described above, and can be freely modified without departing from the spirit of the invention.

[0045] The joinery according to this embodiment comprises a frame body whose four sides are framed by a frame material, and a shoji screen disposed on the frame body, the four sides of which the facing material is framed by a frame material, wherein the frame material is made of resin, and the frame material is made of wood in an area that extends from the indoor-facing surface of the frame material to the indoor-facing surface of the portion that holds the facing material from the outdoor side.

[0046] Such joinery has a designated portion, including at least the interior-facing surface of the frame, made of wood, promoting the use of wood and improving insulation performance. On the other hand, the frame is made of resin, which is less expensive than wood, thus keeping costs down. Furthermore, although water tends to accumulate in the lower frame, the resin material prevents corrosion, thus suppressing a reduction in the product's lifespan.

[0047] The shoji screen may be equipped with electrical components in the frame, a control unit for controlling the electrical components may be provided in or outside the frame, the electrical components and the control unit may be connected by electric wires, and an electric wire storage groove for storing the electric wires may be formed along the longitudinal direction on the outer surface of the wooden portion of the frame.

[0048] The electric wire may pass through the electric wire storage groove formed in the lower frame of the frame material.

[0049] The opening of the wire storage groove is covered with a cover, the cover is fixed to the wooden part by fasteners at the center in the depth direction, and the wire storage groove may be provided on the exterior side of the fasteners.

[0050] The opening of the wire storage groove is covered with a cover, the sliding door is configured to open and close in two different directions, and the cover may form a guide that slides freely for a member that selects the opening and closing direction of the sliding door.

[0051] The control unit may be connected to the internet and configured to be remotely or automatically operated. The frame members may have wooden joints that make up the frame assembly. The parts that are exposed to the outside and that hold the edges of the surface material from the outside may be made of metal or resin.

[0052] A decorative wooden panel may be provided on the interior-facing surface of the frame material. [Explanation of symbols]

[0053] 10 Door / window frame, 12 Frame, 14 Sash, 16 Bottom frame, 18 Top frame, 20 Left vertical frame, 22 Right vertical frame, 24 Frame body, 26 Panel, 38 Control unit, 40 Internet, 46 Electric mechanism, 50 Electric cremone bolt (electrical component), 56 First wire, 58 Second wire, 60a, 60b Vertical interlocking member, 60c Horizontal interlocking member, 62 Slider piece, 64, 64A, 64B, 64C, 64D Attachment (cover), 66 Guided projection, 74 Guide, 75 Countersunk screw (fixing device), 76 Wire storage groove, 80 Frame material, 82 First part, 82b Outdoor panel retaining piece, 84 Second part, 86 Panel retaining space

Claims

1. A joinery comprising a frame body whose four sides are framed by frame material, and a shoji screen disposed on the frame body, the four sides of which the surface material is framed by frame material, The aforementioned frame material is made of resin material. The frame material is made of wood in at least the area from the indoor-facing surface of the frame material to the indoor-facing surface of the portion that holds the facing material from the outdoor side. A type of joinery characterized by its features.

2. The aforementioned shoji screen is equipped with electrical components in the frame material. A control unit for controlling the electrical components is provided within or outside the frame. The aforementioned electrical component and the control unit are connected by an electric wire. A wire storage groove for housing the wires is formed along the longitudinal direction on the outer surface of the wooden portion of the frame material. The joinery according to feature 1.

3. The electric wire passes through the electric wire storage groove formed in the lower frame of the frame material. The joinery according to feature 2.

4. The opening of the aforementioned wire storage groove is covered with a cover. The aforementioned cover is fixed to the wooden part by fasteners at the center in the depth direction. The aforementioned wire storage groove is located on the exterior side of the fixing device. The joinery according to feature 2.

5. The opening of the aforementioned wire storage groove is covered with a cover. The aforementioned sliding door is configured to be able to be opened and closed in two different directions. The cover forms a guide that slides freely to guide the member that selects the opening and closing direction of the sliding door. The joinery according to feature 2.

6. The control unit is connected to the internet and is configured to be remotely or automatically operated. The joinery according to feature 2.

7. The aforementioned frame material has joints made of wood at the points where the frame structure is formed. The joinery according to feature 1.

8. The portion exposed to the outside and holding the edge of the surface material from the outside is made of metal or resin. The joinery according to feature 1.

9. A decorative wooden panel is provided on the interior-facing surface of the aforementioned frame material. The joinery according to feature 1.

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