Sash and window apparatus having the same

Abstract

To provide a sash and a window device having the same, capable of restraining damage of an end part of a stile, while arranging a bracing member.SOLUTION: A sash 10A includes left and right stiles 15, a side 20A, an anti-vibration member 28 attached to at least one first end portion of an upper end portion and a lower end portion of at least one first stile side 20A of the left and right stiles and provided with a receiving groove 29 for receiving a rail portion 7 provided on a frame body 2, and a reinforcing plate 16 attached to one side 29a in a sash thickness direction of the first end portion so as to vertically straddle a groove bottom 21a of the receiving groove when viewed in the sash thickness direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a shoji screen and a window device including the same. [Background technology]

[0002] BACKGROUND ART Shoji screens that are attached to a frame that is installed in an opening formed in a building have been known. A vibration-stopping member is placed on the upper part of the vertical frame of such a shoji screen, which accommodates a downward-protruding rail provided on the upper frame of the window frame and suppresses the vibration of the shoji screen (see, for example, Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-72005 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned shoji screens, a swing-stop member that accepts the downward-protruding rail is provided at the top of the vertical frame, which reduces the strength of the top of the vertical frame, and there is a concern that the top of the vertical frame may be easily damaged if the vertical frame bends due to wind or when the shoji screen is tilted and installed in the window frame.

[0005] The present disclosure has been made in consideration of the above-mentioned situation, and aims to provide a shoji screen and a window device equipped with the same that can prevent damage to the ends of the vertical frames while still providing an anti-vibration member. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the shoji screen of the present disclosure is characterized by comprising left and right vertical frames, a vibration-stopping member attached to a first end of at least one of the upper and lower ends of the first vertical frame of at least one of the left and right vertical frames and having a receiving groove for receiving a rail portion provided on the frame body, and a reinforcing plate attached to one side of the first end in the shoji thickness direction so as to straddle the bottom of the receiving groove from above and below when viewed in the shoji thickness direction. In order to achieve the above object, the window device according to the present disclosure is characterized by comprising a shoji screen according to the present disclosure and a frame body to which the shoji screen is attached. [Effects of the Invention]

[0007] The shoji screen and window device equipped with the same according to the present disclosure are configured as described above, and are therefore able to prevent damage to the ends of the vertical frame while still providing an anti-vibration member. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic front view showing an example of a shoji screen according to an embodiment of the present disclosure and an example of a window device including the same; [Figure 2] FIG. 2 is a schematic exploded perspective view of the alumna device. [Figure 3] FIG. [Figure 4] 1(a) and 1(b) are partially cutaway schematic exploded perspective views of the same shoji screen. [Figure 5] 1A is a schematic side view, partly cut away, of the alumna device, and FIG. 1B is a schematic front view, partly cut away, of the alumna device, and FIG. [Figure 6] FIG. 10 is a partially cutaway schematic perspective view showing an example of another shoji screen provided in the window device. [Figure 7] FIG. 2 is a partially cutaway schematic plan view of the alumna device; [Figure 8] FIG. 2 is a partially cutaway schematic plan view of the alumna device; DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In some drawings, some of the detailed reference numerals used in other drawings are omitted. In the following embodiment, directions such as the up and down directions will be described based on the state in which an example of a window device equipped with a shoji screen according to this embodiment is installed. In the following, the same dimensions, the same plane, and the same surface are not limited to being completely the same dimensions, the same plane, or the same surface, but also include configurations with appropriate dimensional differences or steps (for example, about 0.1 mm to 1.5 mm) depending on the object.

[0010] 1 to 8 are diagrams that schematically show an example of a shoji screen according to the present embodiment and an example of a window device equipped with the same. As shown in Figures 1 and 2, a shoji screen 10 (first shoji screen 10A) according to this embodiment constitutes a window device 1. The window device 1 according to this embodiment comprises a frame body 2 to which the shoji screen 10 is attached. This window device 1 may be an inner window device that is placed on the indoor side (indoor side) of an outer window to form a double-glazed window together with the outer window, or it may be a window device that separates the interior and exterior (indoor and outdoor). The frame 2 of this window device 1 may be fixed to an appropriate base such as a lintel, window sill, or pillar that defines the four perimeters of an opening that penetrates a wall that separates the interior and exterior of a building.

[0011] In the illustrated example, the window device 1 is shown as an example of configuring a bay window (terrace window) with a vertical dimension ranging from the floor to a suitable height on the ceiling side, but it may also be configured as a waist-high window with a vertical dimension ranging from about waist height of an adult to a suitable height on the ceiling side. A shoji screen 10 is slidably attached to the frame body 2 of this window device 1. Specifically, the shoji screen 10 is arranged so as to be movable left and right within the frame body 2. In this embodiment, the window device 1 is equipped with multiple shoji screens 10, 10. These shoji screens 10, 10 are arranged in a sliding window configuration, and include a first shoji screen 10A arranged on one side in the thickness direction within the frame body 2 (e.g., the interior side of the room) and a second shoji screen 10B arranged on the other side in the thickness direction within the frame body 2 (e.g., the exterior side of the room). Hereinafter, when it is not necessary to distinguish between the first shoji screen 10A and the second shoji screen 10B, they will be described as shoji screens 10.

[0012] The frame body 2 includes an upper frame 5, a lower frame 3, and left and right vertical frames 4, 4. The upper frame 5 and the lower frame 3 are elongated in the left-right direction. As shown in Fig. 5(a), the upper frame 5 is provided with a fixed piece 6 that is disposed along the mounting base and secured with suitable fasteners such as screws, and rails 7 and 8 that protrude downward from the fixed piece 6 and extend longitudinally. In this embodiment, the upper frame 5 is provided with a first rail 7 that guides the upper end of the first shoji screen 10A and a second rail 8 that guides the upper end of the second shoji screen 10B, which are spaced apart in parallel in the shoji thickness direction (the projection direction). The first rail 7 and second rail 8 are generally plate-shaped, with their thickness direction aligned with the projection direction.

[0013] Although not shown in detail, the lower frame 3 is provided with a rail portion that guides the lower end of the first shoji screen 10A and a rail portion that guides the lower end of the second shoji screen 10B, similar to the upper frame 5 (see Figure 2). Cover pieces that cover the lower and upper ends of the shoji screen 10 may be provided at both ends or one end of the lower frame 3 and upper frame 5 in the viewing direction. The left and right vertical frames 4, 4 are elongated in the vertical direction as shown in Figures 1 and 2. At both ends of these vertical frames 4, 4 in the forward direction, protrusions may be provided to define storage areas that receive the leading edge of the shoji screen 10 in the closed state. In addition, these vertical frames 4, 4 may be provided with appropriate sealing parts that come into contact with the leading edge of the shoji screen 10 in the closed state. The upper frame 5, lower frame 3, and left and right vertical frames 4, 4 that make up the frame body 2 may be made of metal, but may also be made of resin from the perspective of heat insulation, or may be made of so-called fiber-reinforced resin containing reinforcing fibers such as glass fiber or carbon fiber. The upper frame 5, lower frame 3, and left and right vertical frames 4, 4 may be extrusion-molded products with a substantially uniform cross-sectional shape along their entire length. The upper frame 5, lower frame 3, and left and right vertical frames 4, 4 may be joined together in a frame shape by welding or appropriate fasteners, etc.

[0014] The shoji screen 10 comprises left and right vertical frames 15, 20. The shoji screen 10 comprises an anti-vibration member 28 attached to a first end of at least one of the upper and lower ends of the first vertical frame (20) of at least one of the left and right vertical frames 15, 20, and provided with a receiving groove 29 for receiving the rail portions 7, 8 provided on the frame body 2. With this configuration, by having the anti-vibration member 28 attached to the first end of the first vertical frame (20) receive the rail portions 7, 8 of the frame body 2, it is possible to suppress vibration of the first end side of the shoji screen 10 in the shoji thickness direction. In this embodiment, as shown in Figures 4 and 5, at least one of the two shoji screens 10, 10, the first shoji screen 10A, is provided with a reinforcing plate 16 attached to one side surface (21a) in the shoji screen thickness direction at the first end so as to straddle the groove bottom 29a of the receiving groove 29 from above and below when viewed in the shoji screen thickness direction. With this configuration, the first end of the first vertical stile (20) to which the anti-vibration member 28 is attached can be reinforced by the reinforcing plate 16. Furthermore, because the reinforcing plate 16 is provided so as to straddle the groove bottom 29a of the receiving groove 29 from above and below when viewed in the shoji screen thickness direction, damage to the portion of the anti-vibration member 28 located on the outer side in the vertical direction than the groove bottom 29a, which tends to have reduced strength, can be effectively prevented. This also allows the first vertical stile (20) to be made thinner, and the shoji screen (first shoji screen 10A) itself to be made thinner. Furthermore, when the first shoji screen 10A is the shoji screen on the indoor side, the first vertical frame (20) tends to bend and its first end portion is easily damaged, especially due to strong winds from outside the room, but the reinforcing plate 16 can prevent damage.

[0015] A portion (16b) of the reinforcing plate 16 that is closer to the center of the first stile (20) in the vertical direction than the groove bottom 29a of the receiving groove 29 is provided with an insertion hole 16c for a fastener 9 that attaches the reinforcing plate 16 to the first end portion. With this configuration, the fastener 9 can be inserted into the insertion hole 16c of the reinforcing plate 16 to attach the reinforcing plate 16 to the first end portion of the first stile (20). This allows the reinforcing plate 16 to be attached to the first stile (20) later, and can also be attached only to shoji screens 10 that are easily bent, for example. Furthermore, the fastener 9 does not protrude within the receiving groove 29, and therefore does not interfere with the rail portion (first rail portion 7). In this embodiment, a reinforcing plate 16 is attached to the upper end portion, which serves as the first end portion, of the first vertical frame 20. With this configuration, damage to the upper end portion of the first vertical frame 20 can be suppressed. In this embodiment, the first vertical frame (20) is a door frame 20 that is overlapped with another adjacent door frame 10 in the door thickness direction when closed. The common configuration of the first door frame 20A constituting the door frame 20 of the first door frame 10A and the second door frame 20B constituting the door frame 20 of the second door frame 10B will be described as the door frame 20. An example of the specific configuration of the reinforcing plate 16 and the vibration stopper member 28 will be described later.

[0016] As shown in Figures 1 and 2, the shoji screen 10 comprises a door end frame 15, which is on the opposite side of the left and right vertical frames from the door joint frame 20, an upper frame 13 that is provided to span between the upper ends of the door end frame 15 and the door joint frame 20, and a lower frame 12 that is provided to span between the lower ends of the door end frame 15 and the door joint frame 20. The shoji screen 10 is configured such that a translucent plate 11 that forms the face panel is provided within the frame body including the upper frame 13, lower frame 12, and left and right vertical frames 15, 20. The shoji screen 10 is configured such that the longitudinal end faces of the upper frame 13 and lower frame 12 butt up against the side faces of the longitudinal ends of the left and right vertical frames 15, 20, and these are joined vertically.

[0017] The panel provided on this shoji screen 10 may have a multi-layered structure having multiple light-transmitting panels 11 arranged in the thickness direction of the shoji screen. The light-transmitting panels 11 may be glass panels or may be made of synthetic resin materials such as acrylic or polycarbonate. The multiple light-transmitting panels 11 may be spaced apart in the thickness direction via appropriate spacers formed in a roughly frame shape along the four peripheral edges. In addition, an appropriate sealant may be provided around the entire periphery of the spacer to seal the vacuum layer between the light-transmitting panels 11 or the hollow layer filled with various gases. Plate receiving grooves for receiving the four peripheral edges of the light-transmitting plate 11 are provided on the inner periphery of each of the upper frame 13, the lower frame 12, and the left and right vertical frames 15, 20. Appropriate gaskets that fit tightly against the four peripheral edges of the light-transmitting plate 11 and the sealing material may be provided in these plate receiving grooves so as to extend over almost the entire periphery.

[0018] The upper frame 13 is elongated in the left-right direction. As shown in Figures 3 and 7, the upper frame 13 is provided with a rail receiving groove 14 that opens upward and extends along its entire length to receive the rail portions 7, 8 of the upper frame 5. The rail receiving groove 14 is a substantially rectangular groove with a groove width dimension greater than the thickness dimension of the rail portions 7, 8 and a groove depth dimension greater than the protruding dimension of the rail portions 7, 8. The upper frame 13 may be provided with sealing portions that protrude from both sides of the rail receiving groove 14 in the groove width direction and abut against or are close to the rail portions 7, 8. The upper frame 13 may also include a frame main body that forms the outer shell of the upper frame 13 and a frame reinforcing member that is provided to define the rail receiving groove 14. In this case, the upper frame body may be made of metal, but like the frame body 2 described above, it may be made of resin from the viewpoint of heat insulation, or may be made of fiber-reinforced resin, or may be an extrusion molded product with a substantially uniform cross-sectional shape along its entire length. The frame reinforcing member may also be made of metal such as aluminum or stainless steel. The upper frame 13 is not limited to the above configuration, and may have various other configurations.

[0019] As shown in FIGS. 1 and 2, the lower frame 12 is elongated in the left-right direction. The bottom frame 12 may be provided with a rail-receiving groove that receives the rail portion of the bottom frame 3 and a door roller that engages with the rail portion of the bottom frame 3. In this case, the bottom frame 12 may be provided with a seal portion that protrudes from both sides of the rail-receiving groove in the groove width direction and abuts or is close to the rail portion. The bottom frame 12 may also be provided with multiple (e.g., two) door rollers spaced apart in the bottom frame longitudinal direction. The bottom frame 12 may also be provided with a hollow cylindrical bottom frame body that forms the outer shell of the bottom frame 12, and a door roller unit including the door rollers, and a door roller reinforcement member that is inserted into the bottom frame body together with the door roller unit. In this case, like the top frame 13 described above, the bottom frame body may be made of resin or fiber-reinforced resin, and the door roller reinforcement member may be made of metal. The bottom frame 12 is not limited to the above-mentioned configuration and may have various other configurations.

[0020] The left and right vertical frames 15, 20 are elongated in the vertical direction. Of these left and right vertical frames 15, 20, the door end frame 15 forms the door end that is stored in the storage section of the vertical frame 4 when closed. The stile 15 may comprise a hollow cylindrical stile body that forms the outer shell of the stile 15, and a stile reinforcement member inserted into the stile body. In this case, like the upper stile 13 described above, the stile body may be made of resin or fiber-reinforced resin, and the stile reinforcement member may be made of metal. The stile 15 may also be provided with a handle that can be used to open and close the shoji screen 10. A vibration-stopping member similar to the vibration-stopping member 28 of the door frame 20 (described below) may be attached to the upper end of the stile 15 (stile body). A lower end cap similar to the lower end cap 26 attached to the lower end of the door frame 20 (described below) may also be attached to the lower end of the stile 15 (stile body). The door frame 15 is not limited to the above-described configuration, and may have various other configurations.

[0021] The joining frame 20 of the left and right vertical frames 15, 20 is arranged so that when closed, it overlaps in the shoji thickness direction with the joining frame 20 of another shoji 10 adjacent in the shoji thickness direction. 4 and 5, the joint frame 20 comprises a hollow cylindrical joint frame body 21 constituting the vertical frame body, and a frame reinforcing member 25 inserted into the joint frame body 21. With this configuration, the joint frame 20 can be reinforced by the frame reinforcing member 25. The frame reinforcing member 25 is positioned closer to the center in the vertical direction than the groove bottom 29a of the receiving groove 29 of the anti-vibration member 28 described below. The main body 21 of the stile may be made of metal, but as mentioned above, it may also be made of resin from the standpoint of insulation, or fiber-reinforced resin, or it may be an extrusion molded product with a substantially uniform cross-sectional shape along its entire length. As shown in Figure 3, a recess is provided at the lower end of the joint frame body 21 to receive the rail portion of the bottom frame 3. A lower end cap 26 is attached to the lower end of the joint frame body 21 so as to close the lower end opening of the joint frame body 21. This lower end cap 26 is provided with a recess 27 that forms a receiving groove that receives the rail portion of the bottom frame 3. This lower end cap 26 may also form a vibration prevention member on the lower end side.

[0022] The vibration-proof member 28 at the upper end of the joint frame body 21 is attached so as to close the upper end opening of the joint frame body 21. The anti-vibration member 28 is provided at the upper end of the joint frame body 21 so that its upper surface is flush with the upper surface of the upper frame 13. In the illustrated example, the anti-vibration member 28 has a generally plate-shaped exposed portion that is provided to cover the upper end surface of the joint frame body 21 and is arranged so that its thickness direction is in the vertical direction. The anti-vibration member 28 is provided below this exposed portion and has an insertion portion that is inserted into the joint frame body 21. This insertion portion is shaped so that it can be fitted into the hollow portion of the joint frame body 21. This insertion portion may be provided with a fixing piece portion that protrudes downward more than other portions and has an insertion hole through which a fastener that joins the joint frame 20 to the upper frame 13 is inserted, or an insertion hole through which a fastener that secures the anti-vibration member 28 to the joint frame body 21 is inserted.

[0023] The receiving groove 29 of this anti-vibration member 28 is opened upward and is provided so as to extend over the entire left-right direction of the anti-vibration member 28. This receiving groove 29 is provided so as to coincide with the rail receiving groove 14 of the upper frame 13 in the shoji thickness direction and to communicate with the rail receiving groove 14. The upper end of the door frame body 21 is provided with a notched recess that receives the portion that defines the receiving groove 29 of the anti-vibration member 28. The receiving groove 29 is defined by a groove bottom 29a facing upward and groove side wall surfaces on both sides in the groove width direction. The groove depth dimensions of this receiving groove 29 and the rail receiving groove 14 of the upper frame 13 described above may be any appropriate dimension so that when the shoji screen 10 is installed in a kendon shape, the rail portions 7, 8 of the upper frame 5 can be received and the rail portion of the lower frame 3 can be received in the recess 27 on the lower end side thereof and the rail receiving groove of the lower frame 12.

[0024] The groove width dimension on the opening side of the receiving groove 29 corresponds to the thickness dimension of the rail portions 7, 8 of the upper frame 5. The groove side wall surfaces on both sides of the receiving groove 29 are inclined so that the opening side portions are inclined away from each other as they approach the groove bottom. In other words, the opening side portions of these groove side wall surfaces are formed as inclined surfaces so that the groove width dimension of the opening side portions of the receiving groove 29 increases toward the groove bottom. The groove bottom side portions of these groove side wall surfaces are parallel to each other and flat, perpendicular to the shoji thickness direction. These groove side wall surfaces may be shaped appropriately so as not to interfere with the reception of the rail portions 7, 8 of the upper frame 5 when the shoji screen 10 is installed at an angle in a kendon-like manner. The anti-vibration member 28 may be, for example, a resin molded product with good sliding properties.

[0025] As shown in Figures 3, 6 and 7, the door frame 20 (door frame main body 21) is provided with a pair of protruding pieces 22, 23 that protrude toward the door frame 20 side (opposite side) of the other shoji screen 10 and extend in the vertical direction. As will be described in detail later, as shown in Figures 4(b) and 5(b), the reinforcing plate 16 is attached between this pair of protruding pieces 22, 23. With this configuration, the reinforcing plate 16 can be attached by utilizing the space between the pair of protruding pieces 22, 23 of the door frame 20. The pair of protrusions 22, 23 are provided along the entire length of the door frame body 21, along both edges in the front direction (left and right direction) of the opposite sides of the door frame body 21. The protruding tip surface of the protrusion 22 provided on the door-end side edge of one of the pair of protrusions 22, 23 forms a receiving portion 22a against which a seal portion 24 provided on the door frame 20 of the other shoji screen 10 abuts in the closed state. The protrusion provided on the door end side edge of the other of the pair of protrusions 22, 23 forms a sealing protrusion 23 having a seal portion 24 on its protruding tip surface. In other words, as shown in Figure 7, in the closed state, the seal portion 24 of the second door frame 20B of the second shoji screen 10B abuts against the receiving portion 22a of the protrusion 22 of the first door frame 20A of the first shoji screen 10A. In addition, in the closed state, the seal portion 24 of the first door frame 20A of the first door frame 10A abuts against the receiving portion 22a of the protruding piece portion 22 of the second door frame 20B of the second door frame 10B.

[0026] The protruding piece 22 protrudes from the door-end edge toward one side (opposite side) in the thickness direction of the shoji screen, and has an extending piece at the tip of the protruding direction that extends toward the joining end face. The surface of this protruding piece 22 facing the opposite side of the extending piece constitutes the receiving part 22a. The seal projection 23 projects from the edge of the joining end face toward one side (opposite side) in the shoji thickness direction, and has an extension at the tip of the protruding direction that extends toward the door edge. In other words, the extension of the projection 22 of the joining frame body 21 and the extension of the seal projection 23 are provided so as to extend in directions facing each other (in the facing direction). These projections 22 and seal projection 23 are formed so as to define an engagement recess that opens toward the center in the facing direction (left-right direction). The tip surface on which the seal portion 24 of the seal projection portion 23 of the joint frame body 21 is provided and the receiving portion 22a of the projection portion 22 are arranged to be on the same plane. The receiving portion 22a of the protruding piece 22 of the first joining frame 20A and the tip surface of the sealing protruding piece 23 of the second joining frame 20B are positioned so that they face each other in the shoji thickness direction and are aligned in the facing direction when closed. The receiving portion 22a of the protruding piece 22 of the first joining frame 20A and the tip surface of the sealing protruding piece 23 of the second joining frame 20B are positioned so that they face each other in the shoji thickness direction and are aligned in the facing direction when closed.

[0027] The seal portion 24 of the seal projection 23 is provided so as to protrude from the tip surface of the seal projection 23 in the shoji thickness direction. The illustrated example shows an example in which the seal projection 23 has multiple seal portions 24, 24 (two in the illustrated example) spaced apart in the front direction. These seal portions 24, 24 are thin plates whose thickness direction is generally the same as the front direction and are provided over substantially the entire length of the door frame body 21. The seal portion 24 on the door edge side may be configured to abut against the receiving portion 22a of the opposing projection 22, and the seal portion 24 on the door frame end face side may be configured to abut against the door edge-side corner of the receiving portion 22a of the opposing projection 22. These seal portions 24, 24 may be formed from soft resin, thermoplastic elastomer, rubber, etc. Furthermore, these sealing portions 24, 24 may be integrally molded with the main frame 21 by two-color molding (molding using different materials) or the like, or may be fixed to the main frame 21 by an appropriate adhesive or welding or the like.

[0028] The first door frame 20A is provided with a lock body 31 that constitutes the crescent lock (sash lock) 30, and the second door frame 20B is provided with a crescent receiver 34 that constitutes the crescent lock (sash lock) 30. This configuration allows locking. The lock body 31 and crescent receiver 34 are provided in the middle of the first door frame 20A and the second door frame 20B in the vertical direction so that they are at a height that makes them easy to operate. As shown in Figures 3 and 7, the lock body 31 comprises a base fixed to the joining side end face of the first joining frame 20A, and a lever 32 that is operated to rotate a crescent 33 that is held rotatably around an axis extending in the left-right direction relative to the base. 6 and 7, the crescent receiver 34 is generally plate-shaped with a thickness that is the same as the thickness of the shoji screen. The crescent receiver 34 is provided with an engaged portion 35 that engages with the crescent 33 that constitutes the engaging portion of the lock body 31. The engaged portion 35 is provided in the crescent receiver 34 in a bent-up shape.

[0029] The crescent receiver 34 may be provided with a fixing piece that is fixed to the second joining frame 20B by a fixing device along the opposing surface 21a of the second joining frame 20B (second joining frame body 21B) facing the side facing the first joining frame 20A. As shown in Figure 6, this fixing piece may be inserted through an insertion hole 22b provided in the protruding piece 22 of the second joining frame 20B and be fitted along the opposing surface 21a. The lock body 31 having the engaging portion 35 of the crescent receiver 34 and the crescent 33 that engages with it is not limited to the configuration shown in the illustration, and may have various other configurations.

[0030] As shown in FIG. 3, the first stile body 21A constituting the stile body 21 of the first stile 20A, excluding the upper and lower ends, has a larger dimension along the shoji thickness direction than the second stile body 21B constituting the stile body 21 of the second stile 20B (see also FIG. 7). In other words, the first stile body 21A of the first stile 20A, excluding the upper and lower ends, has a protrusion that protrudes toward a side different from the second stile 20B side. This configuration improves the strength of the first stile 20A and reduces bending due to strong winds, etc. This protrusion is provided over the entire area between the upper and lower ends of the first stile body 21A. The dimensions of the upper and lower ends of the first stile body 21A along the shoji thickness direction are the same as the dimensions of the second stile body 21B along the shoji thickness direction, and the dimensions of the area between the upper and lower ends of the first stile body 21A along the shoji thickness direction are approximately twice the dimensions of the upper and lower ends along the shoji thickness direction.

[0031] The first stile body 21A is hollow cylindrical, including this protrusion. In other words, the first stile body 21A has a hollow portion directly below the anti-vibration member 28, which is similar to the substantially rectangular cylindrical hollow portion of the second stile body 21B, and a hollow portion of the substantially rectangular cylindrical protrusion that is connected to the hollow portion. The hollow portion of the protrusion of the first stile body 21A is larger in the left-right direction than the hollow portion directly below the anti-vibration member 28. At the upper end of the first joining frame body 21A, a recessed step is formed by this protrusion, and a cap is attached to close the opening of this recessed step. Similarly, at the lower end of the first joining frame body 21A, a recessed step is formed by a protrusion, and a cap is attached to close the opening of this recessed step.

[0032] The stile reinforcement member 25 has an outer peripheral shape that generally corresponds to the inner peripheral shape of the hollow portion of the stile body 21. The stile reinforcement member 25 is provided so as to extend substantially the entire length of the stile body 21. The length of the stile reinforcement member 25 may be smaller than the length of the stile body 21 so that the insertion portion of the anti-vibration member 28 attached to the upper end of the stile body 21 and the insertion portion of the bottom cap 26 attached to the lower end can be received within the stile body 21. The stile reinforcement member 25 may be configured to be held within the stile body 21 by being sandwiched between the bottom cap 26 on its lower end and the anti-vibration member 28 on its upper end. The stile reinforcement member 25 may be made of metal such as aluminum or stainless steel, and may be an extrusion molded product with a uniform cross-sectional shape in the longitudinal direction. The second stile reinforcing member 25B constituting the stile reinforcing member 25 of the second joint stile 20B is, as shown in Figure 7, approximately square cylindrical in shape corresponding to the inner peripheral shape of the hollow portion of the second joint stile main body 21B. The first stile reinforcement member 25A constituting the stile reinforcement member 25 of the first joint stile 20A is shaped to correspond to the inner peripheral shape of the hollow portion of the first joint stile body 21 A. This first stile reinforcement member 25A has a substantially square tubular portion corresponding to the hollow portion of the protruding portion and a substantially square tubular portion corresponding to the hollow portion directly below the anti-vibration member 28.

[0033] 5(a) and (b), a fastener 9 is attached to the first frame reinforcing member 25A to attach the reinforcing plate 16 to the upper end of the first frame 20A. With this configuration, the reinforcing plate 16 can be firmly fixed to the upper end, and the upper end of the first frame body 21A, which has the anti-vibration member 28 attached and is difficult to reinforce with the first frame reinforcing member 25A, can be effectively reinforced by the reinforcing plate 16. As shown in Figures 4(a) and (b), the reinforcing plate 16 is an approximately square plate whose thickness direction is the same as the shoji thickness direction, and is attached so as to fit along the opposing surface 21a of the first stile 20A (first stile main body 21A) facing the side opposite the second stile 20B. This reinforcing plate 16 may be made of metal and have a thickness T (see FIG. 5(a)) of 0.5 mm to 2 mm. With this configuration, it is possible to achieve a relatively thin design while improving strength. This reinforcing plate 16 may be made of stainless steel. With this configuration, it is less susceptible to corrosion. In the illustrated example, the reinforcing plate 16 has a thickness that allows it to be inserted into the engagement recess defined by the sealing protrusion 23.

[0034] The reinforcing plate 16 may have a width dimension W (see FIG. 5(b)) in the left-right direction of 10 mm or more. The reinforcing plate 16 may have a vertical dimension H1 (see FIG. 5(a)) of 5 mm or more at a portion (upper portion) 16a of the reinforcing plate 16 that is located outside the groove bottom 29a of the receiving groove 29 of the anti-vibration member 28 in the vertical direction of the first joint frame 20A, and a vertical dimension H2 (see FIG. 5(a)) of 20 mm or more at a portion (lower portion) 16b that is located closer to the vertical center of the first joint frame 20A in the vertical direction than the groove bottom 29a of the receiving groove 29. This configuration makes it easier to ensure strength compared to a configuration in which the width dimension W and vertical dimensions H1, H2 of the reinforcing plate 16 are too small. In other words, the reinforcing plate 16 may be attached to the upper end of the first joint frame 20A so that the vertical dimension H1 of the portion 16a above the groove bottom 29a is 5 mm or more, and the vertical dimension H2 of the portion 16b below the groove bottom 29a is 20 mm or more.

[0035] The vertical dimension H1 of the upper portion 16a of the reinforcing plate 16 may be smaller than the vertical dimension from the groove bottom 29a to the upper end of the first joining frame body 21A. The vertical dimension H2 of the lower portion 16b of the reinforcing plate 16 may be an appropriate dimension so that the fastener 9 can be attached to the upper end of the first frame reinforcing member 25A through the insertion hole 16c, and also from the viewpoint of making it less noticeable, and may be 50 mm or less, or 40 mm or less. The insertion hole 16c is formed so as to penetrate through the lower portion 16b of the reinforcing plate 16 in the thickness direction. The insertion hole 16c is provided in the lower end portion of the lower portion 16b of the reinforcing plate 16. The width dimension W of the reinforcing plate 16 may be smaller than the dimension between the protruding piece portion 22 and the sealing protruding piece portion 23 so that the reinforcing plate 16 can be inserted between these extending piece portions. In the illustrated example, the width dimension W of the reinforcing plate 16 is slightly smaller than the dimension between the extending piece portions. In the illustrated example, the reinforcing plate 16 is attached by inserting one widthwise end portion into the engaging recess of the seal projection 23, but the present invention is not limited to this example.

[0036] As shown in Figures 3 and 4, the shoji screen 10 (first shoji screen 10A) is provided with a cover 17 (upper end cover 17A) attached to the upper end of the first door frame 20A so as to cover the reinforcing plate 16. With this configuration, the reinforcing plate 16 can be made less noticeable. The surface of this first cover 17A (at least the surface that is exposed when attached) may be the same color as the surface of the first stile 20A (first stile body 21A). This configuration makes it possible to make the first cover 17A less noticeable. The surface of the first cover 17A and the surface of the first stile 20A (first stile body 21A) being the same color does not necessarily have to be the exact same color; if each is a single color, it may include colors with a small color difference that make them difficult to visually distinguish, and may also have a generally similar pattern or design in the same color.

[0037] This upper end cover 17A is provided with a plurality of ridges 18 spaced apart vertically, which protrude toward the other shoji (second shoji 10B) and extend in the left-right direction. With this configuration, the plurality of ridges 18 on the upper end cover 17A abut against the second shoji 10B, thereby reducing excessive interference between the first shoji 10A and the second shoji 10B in other areas. The left and right sides of the multiple protrusions 18 on the upper end cover 17A are formed so that the protrusion dimension decreases as it goes outward in the left and right direction. With this configuration, the surfaces of the multiple protrusions 18 on both left and right sides facing the other shoji screen (second shoji screen 10B) become inclined surfaces that slope downward as they go outward in the left and right direction, which can reduce impact and damage when they come into contact with the contacted part of the other shoji screen (second shoji screen 10B).

[0038] In this embodiment, the first shoji screen 10A is configured with an upper end cover 17A and a lower end cover 17B attached to the lower end of the first stile 20A. As shown in FIG. 6, an upper end spacer 19A is attached to the upper end of the second stile 20B of the second shoji screen 10B, against which the protrusion 18 of the upper end cover 17A of the first stile 20A abuts. A lower end spacer 19B is attached to the lower end of the second stile 20B of the second shoji screen 10B, against which the protrusion 18 of the lower end cover 17B of the first stile 20A abuts. With this configuration, when the first shoji screen 10A and the second shoji screen 10B are slid past each other, the protrusions 18 of the upper end cover 17A and the lower end cover 17B abut against the abutting portions of the upper and lower ends of the second stile 20B, respectively, thereby reducing excessive interference in other areas.

[0039] Additionally, the second shoji screen 10B is provided with an intermediate cover 17C attached to the vertical middle portion of the second joining frame 20B. An intermediate spacer 19C is attached to the vertical middle portion of the first joining frame 20A of the first shoji screen 10A, against which the protrusion 18 of the intermediate cover 17C of the second joining frame 20B abuts. With this configuration, when the first shoji screen 10A and the second shoji screen 10B are pulled apart, the protrusion 18 of the intermediate cover 17C abuts against the abutting portion of the first joining frame 20A in the vertical middle portion, thereby reducing excessive interference in other areas. In other words, in this embodiment, the protrusions 18, 18, 18 of each cover 17A, 17B, 17C can be abutted against the abutment portions at the upper end, middle portion in the vertical direction, and lower end of the first and second joining frames 20A and 20B.

[0040] Furthermore, the intermediate cover 17C is attached to the second door frame 20B so as to cover the fixed piece portion of the crescent receiver 34. With this configuration, the fixed piece portion of the crescent receiver 34, which is fixed to the second door frame 20B by a fastener or the like, can be covered by the intermediate cover 17C, improving the appearance. Furthermore, the intermediate cover 17C is positioned at the same height as the crescent receiver 34, and its protrusion 18 abuts against the abutting portion in the vertical middle portion of the first door frame 20A, thereby reducing interference between the locked portion 35 of the crescent receiver 34 of the second door frame 10B and the first door frame 20A. The upper end cover 17A, the lower end cover 17B, and the intermediate cover 17C have the same configuration, and therefore, in the following, unless a distinction is required, they will be referred to as covers 17. The upper end spacer 19A, the lower end spacer 19B, and the intermediate spacer 19C also have the same configuration, and therefore, in the following, unless a distinction is required, they will be referred to as spacers 19.

[0041] The spacer 19 is provided to fill the space between the protrusion 22 and the seal protrusion 23 of the door frame main body 21. The spacer 19 is a rectangular plate whose thickness is the same as the thickness of the shoji screen, and is attached to the door frame main body 21 so as to fit along the opposing surface 21a. The thickness of the spacer 19 is the same as the protrusion dimensions of the protrusion 22 and the seal protrusion 23 so that one side surface of the spacer 19 in the thickness direction (the surface facing away from the opposing surface 21a) is flush with the receiving portion 22a of the protrusion 22 and the tip surface of the seal protrusion 23. The width of the spacer 19 is determined according to the distance between the extensions so that both widthwise ends of the spacer 19 abut or are close to the extensions of the protrusion 22 and the seal protrusion 23. The vertical dimension of this spacer 19 may be the same as that of the cover 17, but in the illustrated example, it is slightly larger than that of the cover 17.

[0042] The surface of this spacer 19 (at least the surface that is exposed when attached) may be the same color as the surface of the stile 20 (stile body 21), similar to the cover 17 described above. This spacer 19 may be attached to the opposing surface 21a with an appropriate fastener, adhesive, or sticky material. This spacer 19 may be made of metal or synthetic resin. As shown in FIG. 6, the upper end spacer 19A is attached so that its upper end surface is flush with the upper end surface of the second joining frame body 21B of the second joining frame 20B. The lower end spacer 19B is attached so that its lower end surface is flush with the lower end surface of the second joining frame body 21B of the second joining frame 20B. As shown in FIG. 3, the intermediate spacer 19C is attached to the first locking frame body 21A of the first locking frame 20A so that it is at the same height as the lock body 31.

[0043] As shown in Figure 4(b), the cover 17 is a roughly rectangular plate whose thickness is the same as the thickness of the shoji screen. The vertical dimension of the cover 17 is greater than the vertical dimensions of the reinforcing plate 16 and the fixed piece of the crescent receiver 34 (see also Figure 6). The cover 17 is attached so as to fill the space between the protruding piece 22 and the sealing protruding piece 23 of the joining frame main body 21. The horizontal dimension of the cover 17 (visual direction) corresponds to the dimension between the protruding piece 22 and the sealing protruding piece 23 of the joining frame main body 21. The cover 17 may be detachably attached to the door frame 20. A first locked portion that is locked to one of the protrusions 22 and the sealing protrusions 23 may be provided at one end of the cover 17 in the left-right direction, and a second locked portion that is locked to the other may be provided at the other end of the cover 17 in the left-right direction. These first and second locked portions may be configured to fit into engaging recesses in the protrusions 22 and the sealing protrusions 23.

[0044] In the illustrated example, the first latched portions are provided on both ends of the end of one of the left and right sides of the cover 17 in the vertical direction (longitudinal direction of the stile) so that the reinforcing plate 16 (fixed piece portion of the crescent holder 34) can be received on the back surface (surface facing the opposing surface 21a) of the cover 17. In other words, the cover 17 is configured to be able to receive the reinforcing plate 16 (fixed piece portion of the crescent holder 34) between the first latched portions. The second latched portions are provided over the entire end of the other left and right side. Alternatively, the second latched portions may be provided on both ends of the end of the other left and right side of the cover 17 in the longitudinal direction of the stile, similar to the first latched portions. The back surface of the cover 17 may be provided with a recess or the like to receive the head of a fastener 9 that secures the reinforcing plate 16 (fixed piece portion of the crescent holder 34).

[0045] One side surface in the thickness direction of this cover 17 (the surface facing the opposite side from the opposing surface 21a) is formed as a curved surface that is convex on one side in the thickness direction, as shown in Figures 7 and 8. When this cover 17 is attached to the joint frame 20, it includes a protrusion 18, and its one side surface in the thickness direction is configured to protrude slightly beyond the protrusion 22 and the seal protrusion 23. One side surface in the thickness direction of the cover 17 is formed into a convex curved surface that slopes toward one side in the thickness direction as it moves away from the protrusion 22 and the sealing protrusion 23. In other words, one side surface in the thickness direction of the cover 17 is formed into a convex curved surface that slopes toward the receiving portion 22a of the protrusion 22 and the tip surface of the sealing protrusion 23 as it moves from the center portion in the left-right direction of the cover 17 toward both left and right outer sides.

[0046] The protrusion 18 protrudes from one thickness-wise side surface of the cover 17 to one side in the thickness direction and is elongated in the left-right direction. The protrusion 18 is provided on one thickness-wise side surface of the cover 17, biased to one side in the left-right direction. In the illustrated example, the protrusion 18 is provided biased to the side in the left-right direction, which is the side on which the first locked portion is provided. The protrusions 18 are provided so that their most protruding portions are located approximately in the center between the left-right center and one of the left-right end portions of the cover 17. In the illustrated example, the most protruding portions of the protrusions 18 are located at a position offset to one side of the protrusions 18 in the left-right direction. The tip surfaces of the protrusions 18 in the protruding direction are inclined surfaces that slope downward from the most protruding portion toward both left and right outer sides and toward one side surface in the thickness direction of the cover 17. The angle of inclination of the inclined surfaces that slope from the most protruding portion of the protrusions 18 toward one end of the cover 17 in the left and right direction is greater than the angle of inclination of the inclined surfaces that slope from the most protruding portion of the protrusions 18 toward the center of the cover 17 in the left and right direction.

[0047] The protrusion dimension of the ridges 18 (the protrusion dimension of the most protruding portion) and the dimension along the vertical direction (width dimension) of the ridges 18 may be set appropriately from the viewpoint of reducing excessive interference with other portions, reducing contact resistance with the abutted portion, etc. The protrusion dimension and width dimension of the ridges 18 may be, for example, about 0.5 mm to 5 mm, or about 1 mm to 3 mm. The number of ridges 18 spaced apart vertically may also be an appropriate number from the same viewpoint as above, and may be about 3 to 15, with nine being shown in the example shown. Preferably, the cover 17 may be configured to have a plurality of ridges 18 spaced equally apart vertically, an odd number of ridges 18. With such a configuration, at least the ridges 18 are located in the vertical center of the cover 17 and at both vertical ends of the cover 17, allowing the ridges 18 on the cover 17 to effectively abut against the abutted parts.

[0048] As shown in Figure 3, the upper end cover 17A is attached so that it is located below the upper end surface of the first joining frame body 21A of the first joining frame 20A. As shown in Figure 5(b), the reinforcing plate 16 and the upper end cover 17A are attached so that they are below the rail portions 7 and 8 of the upper frame 5, but this is not limited to this example. The lower end cover 17B is attached so that its lower end surface is flush with the lower end surface of the first joining frame body 21A of the first joining frame 20A. These upper end cover 17A and lower end cover 17B are attached to the first joining frame 20A so that the protrusion 18, which is biased to one side in the left-right direction, is on the joining end surface side of the first joining frame 20A. As shown in Figure 6, the intermediate cover 17C is attached to the second door frame body 21B of the second door frame 20B so that it is positioned at the same height as the crescent receiver 34. The protrusion 18 of this intermediate cover 17C is arranged so that its most protruding portion is on one side of the locking portion 35 of the crescent receiver 34 in the shoji thickness direction. This intermediate cover 17C is attached to the second door frame 20B so that the protrusion 18, which is arranged to one side in the left-right direction, is on the door edge side of the second door frame 20B. In other words, the intermediate cover 17C is attached so that the protrusion 18 is offset to the door edge side, which is the opposite side to the protrusions 18, 18 of the upper end cover 17A and the lower end cover 17B.

[0049] In the window device 1 configured as described above, as shown in Figure 7, when each shoji screen 10, 10 is in the closed position, the protrusion 18 of the upper end cover 17A of the first door frame 20A abuts or is close to the upper end spacer 19A of the second door frame 20B. Also, below that, the protrusion 18 of the middle cover 17C of the second door frame 20B abuts or is close to the middle spacer 19C of the first door frame 20A. Also, further below that, the protrusion 18 of the lower end cover 17B of the first door frame 20A abuts or is close to the lower end spacer 19B of the second door frame 20B. When at least one of the two shoji screens 10 is moved from the closed position to the open position, the protrusions 18 of the upper cover 17A and the lower cover 17B of the first door frame 20A move relatively while sliding against the upper spacer 19A and the lower spacer 19B of the second door frame 20B and the receiving portion 22a of the protrusion 22. At this time, the protrusions 18 of the middle cover 17C of the second door frame 20B also move relatively while sliding against the middle spacer 19C of the first door frame 20A and the receiving portion 22a of the protrusion 22. This reduces the possibility that the engaging portion 35 of the crescent receiver 34 adjacent to the middle cover 17C of the second door frame 20B will come into excessive contact with the seal portion 24 of the first door frame 20A or abut against the seal protrusion 23 or protrusion 22. In addition, at this time, the ribs 18, 18 of the upper end cover 17A and the lower end cover 17B are biased toward the joining end face, and therefore come out of contact with the contacted portions earlier than the ribs 18 of the intermediate cover 17C. This shortens the period during which the ribs 18, 18, 18 of the upper end cover 17A, the intermediate cover 17C, and the lower end cover 17B simultaneously contact their respective contacted portions, thereby reducing contact resistance.

[0050] Conversely, if at least one of the two shoji screens 10, 10 is moved from the open side to the closed side, as shown in Figure 8, first, the protrusion 18 of the middle cover 17C of the second door frame 20B abuts (slidingly contacts) the receiving portion 22a of the protrusion portion 22 of the first door frame 20A. In this state, the protrusions 18, 18 of the upper end cover 17A and the lower end cover 17B of the first door frame 20A are not in contact with the abutted portion of the second door frame 20B. If at least one of the two shoji screens 10, 10 is moved further toward the closed side from this state, the protrusion 18 of the middle cover 17C of the second door frame 20B will move relatively while sliding against the middle spacer 19C of the first door frame 20A. Next, the protrusions 18, 18 of the upper end cover 17A and the lower end cover 17B of the first joining frame 20A come into contact (sliding contact) with the receiving portion 22a of the protrusion portion 22 of the second joining frame 20B and the upper end spacer 19A and the lower end spacer 19B. This reduces contact resistance as described above.

[0051] The cover 17 and the spacer 19 are not limited to the above-described configurations, and may have various other configurations. While the present embodiment shows an example in which the lower end cover 17B and the lower end spacer 19B that it abuts against, and the intermediate cover 17C and the intermediate spacer 19C that it abuts against, both or either of these may be omitted. Furthermore, the upper end cover 17A and the upper end spacer 19A may also be omitted. The window device 1 may also be provided with windbreak plates or the like attached to the upper frame 5 and the lower frame 3 so as to close the gaps between the ends of the longitudinal stiles of the joining frames 20, 20 of the shoji screens 10, 10 that are arranged so as to overlap in the shoji thickness direction when closed. The frame body 2 may also be provided with appropriate stoppers or the like against which the joining frames 20, 20 of the shoji screens 10, 10 come into contact when fully opened. In the above example, the window device 1 is provided with two sliding shoji screens 10, 10, but it may also be configured with three or more shoji screens, or one of the multiple shoji screens 10 may form a fixed window that cannot slide.

[0052] Furthermore, in the above example, the reinforcing plate 16 is attached to the facing surface 21a of the first door frame 20A of the first shoji screen 10A. However, instead of or in addition to this, the reinforcing plate 16 may be attached to the opposite surface in the shoji screen thickness direction. Also, instead of or in addition to the reinforcing plate 16 attached to the upper end of the first door frame 20A of the first shoji screen 10A, the reinforcing plate 16 may be attached to the lower end. Furthermore, instead of or in addition to the first door frame 20A of the first shoji screen 10A, the reinforcing plate 16 may be attached to at least one of the upper and lower ends of the second door frame 20B of the second shoji screen 10B. Furthermore, instead of or in addition to the door frame 20, the reinforcing plate 16 may be attached to at least one of the upper and lower ends of the door edge frame 15. The configuration of each member and each part of the shoji screen 10 (10A) according to this embodiment and the window device 1 equipped with it is merely an example, and various other modifications are possible.

[0053] <Additional Notes> The above description of the embodiments discloses the following techniques. <Technology 1> A shoji screen comprising left and right vertical frames, a vibration-stopping member attached to a first end of at least one of the upper and lower ends of the first vertical frame of at least one of the left and right vertical frames and having a receiving groove for receiving a rail portion provided on the frame body, and a reinforcing plate attached to one side of the first end in the shoji screen thickness direction so as to straddle the bottom of the receiving groove from above to below when viewed in the shoji screen thickness direction. <Technology 2> A shoji screen as described in Technology 1 has an insertion hole for a fastener that attaches the reinforcing plate to the first end portion at a position on the reinforcing plate that is closer to the center of the first vertical frame than the bottom of the receiving groove. <Technology 3> The first vertical frame comprises a vertical frame body having a hollow cylindrical shape, and a frame reinforcing member inserted into the vertical frame body and positioned toward the center in the vertical direction relative to the groove bottom of the receiving groove, and the fastener is attached to the frame reinforcing member. <Technology 4> A shoji screen as described in any one of Techniques 1 to 3, wherein the first vertical frame is a frame having a pair of protruding pieces that protrude toward the frame of another adjacent shoji screen in the shoji screen thickness direction when closed and extend in the vertical direction, and the reinforcing plate is attached between this pair of protruding pieces. <Technology 5> The shoji screen according to any one of Techniques 1 to 4, wherein the reinforcing plate has a thickness of 0.5 mm to 2 mm and is made of metal. <Technology 6> A shoji screen as described in any one of Techniques 1 to 5, wherein the reinforcing plate has a width dimension in the left-right direction of 10 mm or more, a vertical dimension of 5 mm or more at a portion that is vertically outer of the first vertical frame than the bottom of the receiving groove, and a vertical dimension of 20 mm or more at a portion that is vertically central of the first vertical frame than the bottom of the receiving groove. <Technology 7> The shoji screen according to any one of Techniques 1 to 6, further comprising a cover attached to the first end portion and covering the reinforcing plate. <Technology 8> A shoji screen as described in Technology 7, in which one side of the first vertical frame in the shoji screen thickness direction faces the other shoji screen adjacent to it in the shoji screen thickness direction, and the cover has multiple protrusions spaced apart vertically that protrude toward the other shoji screen and extend in the left-right direction. <Technology 9> A shoji screen as described in Technology 8, in which the left and right sides of the multiple protrusions on the cover are formed so that the protruding dimensions become smaller as they move outward in the left and right directions. <Technology 10> The shoji screen according to any one of Techniques 7 to 9, wherein the surface of the cover is the same color as the surface of the first vertical frame. <Technology 11> A window device comprising the shoji screen according to any one of Techniques 1 to 10 and a frame body to which the shoji screen is attached. [Explanation of symbols]

[0054] 1. Window device 2 frame 7 First rail section (rail section) 10 Shoji screen 10A First Shoji (Shoji) 10B Second Shoji (Other Shoji) 15 Door frame (vertical frame) 16 Reinforcement plate 16a Upper part (the part that is vertically outward from the groove bottom) 16b Lower part (part that is vertically centered from the groove bottom) 16c Insertion hole 17A Top cover (cover) 18 protrusion 20 Stile (vertical stile, first stile) 20A 1st vertical stile (1st vertical stile, 1st vertical stile) 20B 2nd stile (seam stile) 21. Main frame (vertical frame) 21A First stile main body (vertical stile main body) 21a Opposite side (one side in the shoji thickness direction) 22 Projection piece 23 Seal protrusion (protrusion) 25 Frame reinforcement member 25A First frame reinforcement member (frame reinforcement member) 28 Anti-vibration member 29 Receiving groove 29a groove bottom 9 Fasteners H1: Vertical dimension of upper part H2: Vertical dimension of the lower part T thickness dimension W width dimension

Claims

1. A shoji screen characterized by comprising: left and right vertical frames; a vibration-stopping member attached to a first end of at least one of the upper and lower ends of the first vertical frame of at least one of the left and right vertical frames, and having a receiving groove for receiving a rail portion provided on the frame body; and a reinforcing plate attached to one side of the first end in the shoji screen thickness direction so as to straddle the bottom of the receiving groove from above to below when viewed in the shoji screen thickness direction.

2. In claim 1, A shoji screen characterized in that a through hole for a fastener that attaches the reinforcing plate to the first end portion is provided in a portion of the reinforcing plate that is closer to the vertical center of the first vertical frame than the bottom of the receiving groove.

3. In claim 2, The first vertical stile includes a vertical stile body having a hollow cylindrical shape, and a stile reinforcing member inserted into the vertical stile body and positioned closer to the center in the vertical direction than the groove bottom of the receiving groove, A shoji screen characterized in that the fastener is fastened to the frame reinforcing member.

4. In claim 1, The first vertical frame is a frame having a pair of protruding pieces that protrude toward the frame of another adjacent shoji screen in the thickness direction of the shoji screen when closed and extend in the vertical direction, and the reinforcing plate is attached between this pair of protruding pieces.

5. In claim 1, The shoji screen is characterized in that the reinforcing plate has a thickness of 0.5 mm to 2 mm and is made of metal.

6. In claim 1, The reinforcing plate has a width dimension in the left-right direction of 10 mm or more, a vertical dimension of 5 mm or more at the part that is vertically outer of the first vertical frame than the bottom of the receiving groove, and a vertical dimension of 20 mm or more at the part that is vertically central of the first vertical frame than the bottom of the receiving groove.

7. In claim 1, A shoji screen characterized in that it has a cover attached to the first end and covering the reinforcing plate.

8. In claim 7, A shoji screen characterized in that one side of the first vertical frame in the shoji screen thickness direction faces the other shoji screen adjacent to it in the shoji screen thickness direction, and the cover has multiple protrusions spaced apart vertically that protrude toward the other shoji screen and extend in the left-right direction.

9. In claim 8, A shoji screen characterized in that the left and right sides of the multiple protrusions on the cover are formed so that the protruding dimensions become smaller as they move outward in the left and right directions.

10. In claim 7, A shoji screen characterized in that the surface of the cover is the same color as the surface of the first vertical frame.

11. A window device comprising: a shoji screen according to any one of claims 1 to 10; and a frame body to which the shoji screen is attached.

Images