Sliding sash and window device with the same

Abstract

To provide a sliding sash whose airtightness can be improved between an indoor-side meeting stile that is in mutual opposition to an outdoor-side meeting stile of the other sliding sash, and a window device equipped with the same.SOLUTION: A sliding sash 40B has a crescent receiver 84 attached to an outdoor-side meeting stile 70B, which receives a crescent 83 that constitutes a crescent lock 80 and is attached to an indoor-side meeting stile 70A of an indoor-side sliding sash 40A. The crescent receiver has a fixed piece portion 86 that is aligned with the indoor-side of the outdoor-side meeting stile and fixed to the outdoor-side meeting stile by a fastener 9. The outdoor-side meeting stile has a protruding piece portion 73 that protrudes toward the indoor-side meeting stile and whose tip surface in the protruding direction terminates in a receiving portion 73a for a seal portion 75 provided on the indoor-side meeting stile. The protruding piece portion has an insertion hole 73b that penetrates the base end portion of the protruding piece portion and through which the fixed piece portion is inserted.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] Shoji screens with crescent locks have been known for some time. For example, Patent Document 1 below discloses a fitting in which the joint frame of an outer shoji screen has an inner protrusion that protrudes toward the joint frame of an inner shoji screen and comes into contact with the joint airtight material provided on the joint frame of the inner shoji screen. The inner protrusion of the joint frame of the outer shoji screen has a notch cut into the part where the mounting part of the crescent receiver of the crescent lock is attached. In addition, a cover is attached to the joint frame of the outer shoji screen, which covers the mounting part of the crescent receiver and has a part that fits into the notch to close the notch. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-246991 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the fittings described in Patent Document 1, if processing errors occur in the cutout or part of the cover, steps or gaps are likely to occur on the contact surface of the airtight material where the joint airtight material comes into contact, and further improvements are desired.

[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 improve the airtightness between the opposing indoor and outdoor door frames. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the shoji screen disclosed herein is a shoji screen in which a crescent receiver that is provided on the indoor side sash of an indoor side shoji screen and that receives a crescent that constitutes a crescent lock is provided on the outdoor side sash, and the crescent receiver is provided with a fixed piece portion that is aligned with the indoor side of the outdoor side sash and fixed to the outdoor side sash by a fastener, and the outdoor side sash is provided with a protruding piece portion that protrudes toward the indoor side sash and whose protruding tip surface serves as a receiving part for the seal portion provided on the indoor side sash, and the protruding piece portion has an insertion hole through which the fixed piece portion is inserted that penetrates the base end portion of the protruding piece portion. In order to achieve the above-mentioned objective, the window device of the present disclosure is characterized by comprising a shoji screen of the present disclosure, an interior shoji screen having a crescent provided on an interior door frame that forms a crescent lock together with a crescent receiver provided on the shoji screen, and a frame body to which the shoji screen and the interior shoji screen are 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, thereby improving the airtightness between the opposing indoor and outdoor door frames. [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] 2 is a partially cutaway schematic cross-sectional view taken along the line XX in FIG. 1. [Figure 3] 2 is a schematic, partially cutaway longitudinal sectional view taken along the line YY in FIG. 1. [Figure 4] FIG. 2 is a schematic exploded perspective view of the alumna device. [Figure 5] 1 is a partially cutaway schematic cross-sectional view of an alumna device. [Figure 6] 1(a) and 1(b) are partially cutaway schematic perspective views of the alumna device, with a portion thereof omitted. [Figure 7]FIG. 2 is a schematic exploded perspective view of the resonator device with a portion thereof omitted. [Figure 8] (a) and (b) are schematic perspective views of the alumna device with parts omitted, (c) is a schematic side view of the alumna device with parts omitted, and (d) is a schematic cross-sectional view of the alumna device with parts omitted. [Figure 9] FIG. 1A is a schematic exploded perspective view of the alumna device with a portion thereof omitted, and FIGS. 1B and 1C are schematic side views of the alumna device with a portion thereof omitted. [Figure 10] 1A is a schematic perspective view of the alumna device with a portion thereof omitted, FIG. 1B is a schematic side view of the alumna device with a portion thereof omitted, and FIG. 1C is a schematic front view of the alumna device with a portion thereof omitted. [Figure 11] 1(a) to 1(c) are schematic exploded perspective views of the alumna device with a portion thereof omitted. [Figure 12] 1(a) and 1(b) are schematic perspective views of the alumna device with a portion thereof omitted, and FIG. 1(c) is a schematic cross-sectional view of the alumna device with a portion thereof omitted. [Figure 13] (a) is a schematic exploded oblique view of the alumna device with part of the device omitted, (b) is a schematic plan view of the alumna device with part of the device omitted, (c) is a schematic longitudinal cross-sectional view of the alumna device with part of the device omitted, (d) is a schematic oblique view of the alumna device with part of the device omitted, and (e) is a schematic front view of the alumna device with part of the device omitted. [Figure 14] FIG. 10 is a partially cutaway schematic cross-sectional view showing a modified example 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 14 are diagrams that schematically show an example of a shoji screen according to the present embodiment, an example of a window device including the same, and a modified example thereof. As shown in Figure 1, a shoji screen 40 (40B) according to this embodiment constitutes a window device 1. The window device 1 according to this embodiment includes a frame 10 to which the shoji screen 40 is attached. In this embodiment, as shown in Figures 2 and 3, the window device 1 constitutes an inner window device 1 that is placed on the indoor side (indoor side) of an outer window 3. With this configuration, a double-glazed window can be formed by the outer window 3 and the inner window device 1, thereby improving thermal insulation and soundproofing. The exterior window 3 may be installed by fixing the frame to an appropriate base such as a lintel, window sill, or pillar that defines the four sides of an opening 2 that penetrates a wall that defines the interior and exterior of a building.

[0011] The interior window device 1 may be installed in an appropriate frame 4 provided on the interior side of the frame of the exterior window 3, along all four edges of the frame. This frame 4 may include an upper frame 5 arranged along the upper edge of the opening 2, a lower frame 6 arranged along the lower edge of the opening 2, and vertical frames 7, 7 on both sides arranged along the left and right edges of the opening 2, thereby defining an installation opening 8 into which the interior window device 1 will be installed. The installation target (mounting base) for the interior window device 1 is not limited to this frame 4, but may also be, for example, the shoji frame of a Japanese-style shoji screen provided on the interior side of the exterior window 3, or any other appropriate installation target. Furthermore, while the illustrated example shows an example of the interior window device 1 constituting a waist-high window with vertical dimensions ranging from about waist height of an adult to a suitable height above the ceiling, it may also be constituting a bay window with vertical dimensions ranging from floor to a suitable height above the ceiling. A shoji screen 40 is slidably attached to the frame 10 of the interior window device 1. Specifically, the shoji screen 40 is arranged so that it can move left and right within the frame 10. In this embodiment, the interior window device 1 is equipped with multiple shoji screens 40, 40. These shoji screens 40, 40 are arranged in a sliding window configuration, and include an interior shoji screen 40A arranged on the interior side of the frame 10 and an exterior shoji screen 40B arranged on the exterior window 3 side (the exterior side, the outdoor side) within the frame 10. Hereinafter, when there is no need to distinguish between the interior shoji screen 40A and the exterior shoji screen 40B, they will be referred to as shoji screens 40. Furthermore, when there is no need to distinguish between the components and parts provided on the interior and exterior sides of the frame 10 corresponding to the interior shoji screen 40A and the exterior shoji screen 40B, they will be referred to collectively, omitting the terms interior and exterior.

[0012] The frame body 10 comprises an upper frame 11, a lower frame 15, and left and right vertical frames 20, 20. As shown in FIGS. 1 and 4, the upper frame 11 is elongated in the left-right direction. As shown in Figure 3, the upper frame 11 is provided with a rail portion 13 that projects downward and extends in the longitudinal direction to guide the upper end of the shoji screen 40. The rail portion 13 is arranged along the mounting base such as the upper frame 5, and projects downward from a fixing piece portion 12 provided on the upper frame 11, which is fixed with suitable fasteners such as screws. The fixing piece 12 is generally plate-shaped and arranged so that its thickness is in the vertical direction. Appropriate gaskets that elastically deform and fit tightly to the mounting base may be provided on both edges of the fixing piece 12 in the projection direction (the same direction as the thickness of the shoji screen) on the mounting base side.

[0013] The rail portion 13 is provided so as to extend over substantially the entire length of the upper frame 11. The rail portion 13 is formed in a substantially plate shape and is arranged so that the thickness direction is the projection direction. In this embodiment, the rail portion 13 includes an indoor rail portion 13A that guides the upper end of the indoor shoji screen 40A and an outdoor rail portion 13B that guides the upper end of the outdoor shoji screen 40B. The indoor rail portion 13A and the outdoor rail portion 13B are arranged parallel to each other with a gap in the projection direction. The projection direction dimension between the indoor rail portion 13A and the outdoor rail portion 13B may be set appropriately depending on the thickness of the indoor shoji screen 40A and the outdoor shoji screen 40B that are guided by them so that they are arranged close to each other. Furthermore, these indoor rail portion 13A and outdoor rail portion 13B are provided so as to be positioned toward the outdoor side in the projection direction of fixed piece portion 12. In other words, the dimension along the projection direction from outdoor rail portion 13B to the outdoor end of fixed piece portion 12 is smaller than the dimension along the projection direction from indoor rail portion 13A to the indoor end of fixed piece portion 12.

[0014] The upper frame 11 is provided with a cover piece 14 that is provided to cover the upper end of the shoji screen 40 when viewed from one side in the thickness direction of the shoji screen 40. With this configuration, the cover piece 14 makes the upper end of the shoji screen 40 less noticeable. The cover piece 14 is arranged so that its lower end is located above the lower end of the rail portion 13. This cover piece 14 protrudes downward from the indoor end of the fixed piece portion 12 and extends over approximately the entire length of the upper frame 11, with its lower end facing the upper end of the indoor shoji screen 40A in the shoji screen thickness direction. This cover piece 14 is approximately plate-shaped and arranged so that the thickness direction is the projection direction. The outside end of the fixed piece 12 does not have a cover piece 14, and the surface of the fixed piece 12 facing the outside (outside end surface) and the surface of the outside shoji screen 40B facing the outside (outside side surface) are positioned so that they are approximately aligned in the shoji thickness direction. The illustrated example shows an example in which the outside end surface of the fixed piece 12 and the outside side surface of the translucent plate 41 (described later) of the outside shoji screen 40B are flush with each other.

[0015] As shown in FIGS. 1 and 4, the lower frame 15 is elongated in the left-right direction. As shown in Figure 3, the lower frame 15 is provided with a rail portion 17 that projects upward and extends in the longitudinal direction to guide the lower end of the shoji screen 40. The rail portion 17 is arranged along the mounting base such as the lower frame 6, and projects upward from a fixing piece portion 16 that is provided on the lower frame 15, which is fixed with suitable fasteners 9 such as screws (see Figure 13(b)). The fixing piece 16 is generally plate-shaped and arranged with its thickness oriented vertically, as described above. Appropriate gaskets may be provided on both edges of the fixing piece 16 facing the mounting base.

[0016] The rail portion 17 is provided so as to extend over substantially the entire length of the lower frame 15. The rail portion 17 is formed in a substantially plate shape and is arranged so that the thickness direction is the projection direction. In this embodiment, as in the above, the rail portion 17 includes an indoor rail portion 17A that guides the lower end side of the indoor shoji screen 40A and an outdoor rail portion 17B that guides the lower end side of the outdoor shoji screen 40B. The indoor rail portion 17A of the lower frame 15 is arranged so as to be located directly below the indoor rail portion 13A of the upper frame 11, and the outdoor rail portion 17B of the lower frame 15 is arranged so as to be located directly below the outdoor rail portion 13B of the upper frame 11. As described above, the indoor rail portion 17A and the outdoor rail portion 17B are provided so as to be positioned toward the outdoor side in the projection direction of the fixed piece portion 16. In other words, the dimension along the projection direction from the outdoor rail portion 17B to the outdoor end of the fixed piece portion 16 is smaller than the dimension along the projection direction from the indoor rail portion 17A to the indoor end of the fixed piece portion 16.

[0017] The lower frame 15 is provided with a cover piece 18 that is arranged to cover the lower end of the shoji screen 40 when viewed from one side in the thickness direction. The cover piece 18 is arranged so that its upper end is located lower than the upper end of the rail portion 17. This cover piece 18 is arranged to protrude upward from the indoor end of the fixed piece portion 16 and extend over approximately the entire length of the lower frame 15, with its upper end facing the lower end of the indoor shoji screen 40A in the shoji thickness direction. This cover piece 18 is approximately plate-shaped and arranged so that the thickness direction is the prospective direction. No cover piece 18 is provided at the exterior end of the fixed piece 16. This shows an example in which the exterior end face of this fixed piece 16 is flush with the exterior end face of the fixed piece 16 of the upper frame 11 described above. With this configuration, the projected dimensions of the upper frame 11 and lower frame 15 can be effectively reduced, even while the cover pieces 14, 18 are provided on the interior side. Note that if the interior window device 1 constitutes a casement window, an appropriate slope-shaped member may be provided on the interior side of the cover piece 18 of the lower frame 15 to reduce the difference in level with the floor surface.

[0018] As shown in FIG. 5 , the vertical frame 20 is provided with a seal support piece 24 that protrudes toward the center of the frame 10 in the left-right direction so as to face a first surface (seal-facing surface) 60a on one side of the shoji screen thickness direction at the leading edge of the shoji screen 40. The seal support piece 24 is provided with a first seal portion 25 that extends from the leading end of the seal support piece 24 in the shoji screen thickness direction and abuts against the seal-facing surface 60a, and a second seal portion 26 that extends from the middle of the seal support piece 24 in the shoji screen thickness direction and abuts against a corner 60c between the leading edge end surface 60b of the shoji screen and the seal-facing surface 60a. This configuration allows for a two-stage sealing effect using the first seal portion 25 and the second seal portion 26 provided on the vertical frame 20. Furthermore, compared to a configuration in which a seal portion is provided at a position where it would be crushed by the leading edge end surface 60b, the first seal portion 25 and the second seal portion 26 are less likely to wear out. Furthermore, even when the shoji screen 40 is closed with its leading end misaligned in the direction away from the seal support piece 24 or the vertical frame 20, either the first seal portion 25 or the second seal portion 26 can more easily come into contact with the object to be abutted, thereby effectively improving airtightness.

[0019] The extension dimension of the first seal portion 25 is smaller than the extension dimension of the second seal portion 26. With this configuration, compared to a configuration in which the extension dimensions of the first seal portion 25 and the second seal portion 26 are the same, the first seal portion 25 is less likely to cause resistance when opening and closing the shoji screen 40, thereby improving opening and closing operability. The seal support piece 24 is provided on each of the left and right vertical frames 20, 20 so as to be positioned between the indoor shoji screen 40A and the outdoor shoji screen 40B in the prospective direction, and a first seal portion 25, 25 and a second seal portion 26, 26 are provided on both sides of each seal support piece 24, 24 in the shoji screen thickness direction. With this configuration, the left and right vertical frames 20, 20 can be used as dual-purpose members. The vertical frame 20 is provided with protruding pieces 22, 23 that protrude from both side edges in the front view direction toward the center of the frame body 10 in the left-right direction and define a storage section 29 that stores the leading edge of the shoji screen 40. With this configuration, the leading edge of the shoji screen 40 can be stored in an attractive manner. One of these protruding pieces 22, 23 on both sides in the front view direction is arranged to face the second surface (protruding piece facing surface) 60d on the other side in the shoji screen thickness direction of the leading edge of the shoji screen 40. The protruding piece 22 (23) that faces the protruding piece facing surface 60d of the leading edge of the shoji screen 40 is provided with an inclined guide surface 27a (28a) that guides the leading edge of the shoji screen 40 toward the seal support piece 24 in the shoji screen thickness direction. With this configuration, the leading end of the shoji screen 40 can be guided toward the seal support piece portion 24, and the leading end of the shoji screen 40 can be stably abutted against the first seal portion 25 and the second seal portion 26.

[0020] Specifically, as shown in FIGS. 1 and 4, these vertical frames 20, 20 are elongated in the vertical direction. These vertical frames 20, 20 include a right vertical frame 20A against which the leading edge of the indoor shoji 40A in the closed position abuts or is close to, and a left vertical frame 20B against which the leading edge of the outdoor shoji 40B in the closed position abuts or is close to. In other words, the illustrated example shows an example in which the indoor shoji 40A and the outdoor shoji 40B are arranged in a right-front (right-handed) configuration, with the right shoji (indoor shoji 40A) facing the interior window device 1. As shown in FIG. 2, these vertical frames 20, 20 are arranged along the mounting base, such as the left and right vertical picture frames 7, 7, and include fixing pieces 21, 21 that are secured with appropriate fasteners such as screws. These fixing pieces 21, 21 are generally plate-shaped and arranged with their thicknesses aligned with the left-right direction. Appropriate gaskets may be provided on both edges of these fixing pieces 21, 21 on the mounting base side in the projection direction, as described above (see FIG. 5). These vertical frames 20, 20 have the same configuration except for the inclined guide surfaces 27a, 28a. When one is rotated 180 degrees around an axis along the projection direction, it has a shape that is approximately identical to the other. In other words, these vertical frames 20, 20 are formed in a left-right mirror image when viewed in cross section. Below, when there is no need to distinguish between the common configurations of these vertical frames 20, 20, one vertical frame 20 will be used as an example.

[0021] As shown in Figure 5, the protrusions 22, 23 include an indoor-side protrusion 22 that protrudes toward the center in the left-right direction from the indoor-side end of the fixed piece 21 of the vertical frame 20, and an outdoor-side protrusion 23 that protrudes toward the center in the left-right direction from the outdoor-side end of the fixed piece 21 of the vertical frame 20. These protrusions 22, 23 are provided to extend over approximately the entire length of the vertical frame 20. These protrusions 22, 23 are generally plate-shaped and arranged so that their thickness direction is the projection direction. The protrusion dimensions of these protrusions 22, 23 are approximately the same. In the illustrated example, the protrusion dimension of the outdoor-side protrusion 23 is slightly larger than the protrusion dimension of the indoor-side protrusion 22, but this is not limited to this example.

[0022] The indoor projection 22 is disposed in contact with or close to the indoor side of the cover pieces 14, 18 of the upper frame 11 and the lower frame 15 so as to cover the longitudinal ends of these pieces. In other words, the indoor projection 22 is disposed so that its outdoor surface is roughly aligned with the indoor surfaces of the cover pieces 14, 18 of the upper frame 11 and the lower frame 15 in the prospective direction. The indoor shoji screen 40A is disposed so as to be positioned on the outdoor side of these cover pieces 14, 18 so as not to interfere with them. The exterior projection 23 is disposed in contact with or adjacent to the exterior of the fixed piece portions 12, 16 of the upper frame 11 and the lower frame 15 so as to cover the longitudinal ends of the exterior end surfaces of these fixed piece portions. In other words, the exterior projection 23 is disposed so that its interior side is positioned in the forward direction to approximately coincide with the exterior end surfaces of the fixed piece portions 12, 16 of the upper frame 11 and the lower frame 15. As described above, no cover piece is provided on the exterior ends of the upper frame 11 and the lower frame 15, so that the gap between the projection-facing surface 60d of the exterior shoji screen 40B and the exterior projection 23 can be made smaller than the gap between the projection-facing surface 60d of the interior shoji screen 40A and the interior projection 22.

[0023] The outdoor projection 23 of the left vertical frame 20B is provided with an inclined guide surface 28a that abuts against the door-edge end of the opposing outdoor shoji screen 40B. This inclined guide surface 28a is formed on the door-edge guide portion 28 provided on the indoor side of the outdoor projection 23. This door edge guide portion 28 is positioned at the inside corner between the fixed piece portion 21 and the exterior projection portion 23. This door edge guide portion 28 is positioned so as to follow the indoor side surface of the exterior projection portion 23 and to protrude from the indoor side surface toward the interior of the room. The indoor side surface 28b of this door edge guide portion 28 is a flat surface parallel to the indoor side surface of the exterior projection portion 23, and the projection-facing surface 60d facing the exterior of the door edge end of the exterior shoji screen 40B in the closed position abuts or is close to it. The inclined guide surface 28a is positioned on the right vertical frame 20A side of the indoor side surface 28b of the door edge guide portion 28, and is an inclined surface that slopes toward the exterior as it moves away from the fixed piece portion 21. When the outdoor corner of the leading end of the outdoor shoji screen 40B, which is moving toward the closed position, abuts against this inclined guide surface 28a, the guiding action causes the leading end of the outdoor shoji screen 40B to be displaced toward the indoor side, toward the seal support piece portion 24.

[0024] The dimensions of this door end guide portion 28 along the vertical frame projection direction and the vertical frame projection direction are appropriately sized so that the inclined guide surface 28a performs the guiding function described above, and so that the indoor side surface 28b abuts or is close to the protruding piece opposing surface 60d of the outdoor shoji screen 40B in the closed position. In the illustrated example, the dimension of this door end guide portion 28 along the vertical frame facing direction is the same as the protruding dimension of the outdoor protruding piece portion 23. The dimension of this door edge guide portion 28 along the vertical frame projection direction corresponds to the gap between the projection-opposing surface 60d of the outside shoji screen 40B and the outside projection portion 23. In other words, the dimension of the door edge guide portion 28 along the vertical frame projection direction is smaller than the gap between the projection-opposing surface 60d of the inside shoji screen 40A and the inside projection portion 22. In other words, the dimension of this door edge guide portion 28 along the vertical frame projection direction is smaller than the dimension of the door edge guide portion 27 on the right vertical frame 20A side, which will be described later, along the vertical frame projection direction.

[0025] The angle (inclination angle) formed by the inclined guide surface 28a of this door edge guide portion 28 and its exterior side (the interior side of the exterior projection portion 23) may be an appropriate angle, for example, about 25 to 50 degrees, so as to smoothly guide the door edge side end of the exterior shoji 40B toward the closed position. Because the dimension of this door edge guide portion 28 along the shoji thickness direction is relatively small, the inclination angle of the inclined guide surface 28a may be smaller than the inclination angle of the inclined guide surface 27a described below, for example, about 30 to 40 degrees, and in the example shown in the figure is about 34 degrees. 6(a), an inclined surface having a smaller inclination angle than inclined guide surface 28a may be provided between inclined guide surface 28a and indoor side surface 28b of door-edge guide portion 28. Instead of this embodiment, a portion having a convex curved surface shape may be provided between inclined guide surface 28a and indoor side surface 28b, or the convex curved surface shape may also include inclined guide surface 28a.

[0026] Furthermore, this door edge guide portion 28 (inclined guide surface 28a) may be provided so as to extend over substantially the entire length of the left vertical frame 20B, but from the viewpoint of reducing resistance due to contact with the outdoor shoji screen 40B, it may be provided only on a portion of the left vertical frame 20B in the longitudinal direction. In this case, it may be provided at multiple locations spaced apart in the longitudinal direction of the left vertical frame 20B, or, for example, it may be provided at only one location in the center of the longitudinal direction. Furthermore, this door edge guide portion 28 has a uniform cross-sectional shape over its entire length (the same direction as the length of the left vertical frame 20B). This door edge guide portion 28 may be molded integrally with the left vertical frame 20B, or may be fixed with an appropriate adhesive or pressure-sensitive adhesive.

[0027] The indoor-side projection 22 of the right vertical frame 20A is provided with an inclined guide surface 27a that abuts against the door-edge side end of the opposing indoor-side shoji 40A. This inclined guide surface 27a is formed on the door-edge guide portion 27 provided on the outdoor side of the indoor-side projection 22. This door edge guide portion 27 is located at the corner between the fixed piece portion 21 and the indoor-side protrusion portion 22. This door edge guide portion 27 is located along the outdoor-side surface of the indoor-side protrusion portion 22 and protrudes from the outdoor-side surface to the outdoor side. The outdoor-side surface 27b of this door edge guide portion 27 is a flat surface parallel to the outdoor-side surface of the indoor-side protrusion portion 22, and the protrusion-facing surface 60d facing the indoor side of the door edge end of the indoor-side shoji screen 40A in the closed position abuts or is close to it. The inclined guide surface 27a is located on the left vertical frame 20B side of the outdoor-side surface 27b of the door edge guide portion 27, and is an inclined surface that slopes toward the indoor side as it moves away from the fixed piece portion 21. When the indoor corner of the door leading end of the indoor shoji screen 40A moving toward the closed position abuts against this inclined guide surface 27a, the guide action causes the door leading end of the indoor shoji screen 40A to be displaced toward the outdoor side, toward the seal support piece portion 24.

[0028] The dimensions of this door end guide portion 27 along the vertical frame projection direction and the vertical frame projection direction are appropriately determined so that the inclined guide surface 27a provides the above-mentioned guiding function, and so that the protruding piece opposing surface 60d of the indoor shoji screen 40A in the closed position abuts or is close to its outdoor side surface 27b. In the illustrated example, the dimension of this door edge guide portion 27 along the visible direction of the vertical frame is smaller than the protruding dimension of the indoor-side protruding piece 22 so as not to interfere with the protruding step that protrudes slightly toward the outside of the room from the protruding tip of the indoor-side protruding piece 22. In other words, the dimension of this door edge guide portion 27 along the visible direction of the vertical frame is smaller than the dimension of the door edge guide portion 28 on the left vertical frame 20B side described above along the visible direction of the vertical frame. The dimension of this door edge guide portion 27 along the vertical frame projection direction is set to a dimension corresponding to the gap between the protrusion-facing surface 60d of the indoor-side shoji screen 40A and the indoor-side protrusion portion 22. In other words, the dimension of the door edge guide portion 27 along the vertical frame projection direction is set to be larger than the dimension of the door edge guide portion 28 on the left vertical frame 20B side described above along the vertical frame projection direction.

[0029] The angle (inclination angle) formed between the inclined guide surface 27a of this door edge guide portion 27 and its indoor side surface (the outdoor side surface of the indoor-side protrusion portion 22) may be, as above, for example, about 25 to 50 degrees. Because the dimension of this door edge guide portion 27 along the vertical frame projection direction is relatively large and the dimension along the vertical frame projection direction is relatively small, the inclination angle of the inclined guide surface 27a may be larger than the inclination angle of the inclined guide surface 28a described above, for example, may be about 40 to 50 degrees, and in the example shown, an example of about 45 degrees is shown. As shown in Fig. 6(b), a portion having a convex curved surface shape is provided between the inclined guide surface 27a and the exterior side surface 27b of the door-end guide portion 27. Instead of this embodiment, the convex curved surface shape may also include the inclined guide surface 27a, as described above, or an inclined surface having a smaller inclination angle than the inclined guide surface 27a may be provided between the inclined guide surface 27a and the exterior side surface 27b. Furthermore, this door edge guide portion 27 (inclined guide surface 27a) may be provided so as to extend over substantially the entire length of the right vertical frame 20A, but from the viewpoint of reducing resistance due to contact with the indoor shoji 40A, it may also be provided on only a portion of the right vertical frame 20A in the longitudinal direction, as described above. In this case, it may be provided at multiple locations spaced apart in the longitudinal direction of the right vertical frame 20A, or, for example, it may be provided at only one location in the longitudinal center.

[0030] Furthermore, unlike the door end guide portion 28 on the left vertical frame 20B side described above, this door end guide portion 27 does not have a uniform cross-sectional shape throughout its entire longitudinal direction (the same direction as the longitudinal direction of the right vertical frame 20A). The inclined guide surface 27a of this door edge guide portion 27 is formed so that the dimension along the vertical frame longitudinal direction of the inclined guide surface 27a on the base end side (base end side of the indoor projection portion 22) is smaller than the dimension along the vertical frame longitudinal direction of the inclined guide surface 27a on the tip end side (tip end side of the indoor projection portion 22). With this configuration, the inclined guide surface 27a on the tip end side stably guides the door edge side end of the indoor shoji screen 40A moving toward the closed position, while the contact area of ​​the inclined guide surface 27a on the base end side with the door edge side end of the indoor shoji screen 40A is smaller, so the resistance by the inclined guide surface 27a can be reduced. The base-side inclined guide surface 27a is formed so that the dimension along the longitudinal direction of the vertical frame increases toward the base end. With this configuration, the resistance in the area where the dimension along the longitudinal direction of the vertical frame is small as described above can be reduced, while still stably guiding the door-front end of the indoor shoji screen 40A. The protruding curved surface connected to the base end inclined guide surface 27a and the interior side surface 27b are also formed so that the dimension along the longitudinal direction of the vertical frame increases toward the base end. With this configuration, the door leading end of the interior side shoji 40A in the closed position can be stably positioned in an appropriate position by the interior side surface 27b.

[0031] Specifically, a recessed step 27c is provided on the base end of the inclined guide surface 27a at the tip end of the door end guide portion 27, reducing the dimension of the inclined guide surface 27a at the base end along the longitudinal direction of the vertical frame. Furthermore, recessed steps 27c, 27c are provided on both sides of the door end guide portion 27 in the longitudinal direction of the vertical frame. These recessed steps 27c, 27c are provided so as to open to the outside of the room and both sides in the longitudinal direction of the vertical frame, and are provided over the entire base end of the door end guide portion 27. In other words, the dimension of the indoor side surface 27b at the base end along the longitudinal direction of the vertical frame is smaller than the dimension of the inclined guide surface 27a at the tip end along the longitudinal direction of the vertical frame. Alternatively, these dimensions may be the same. The configuration in which the dimension of the base-end inclined guide surface 27a along the vertical frame longitudinal direction is smaller than the dimension of the tip-end inclined guide surface 27a along the vertical frame longitudinal direction is not limited to the configuration with recessed steps 27c, 27c as shown in the illustration. It may also be a configuration in which inclined surfaces are provided on both sides of the door edge guide portion 27 in the vertical frame longitudinal direction, or various other configurations can be employed. The door edge guide portion 28 on the left vertical frame 20B side described above may also have a similar configuration. Alternatively, the door edge guide portion 27 on the right vertical frame 20A side may have a uniform cross-sectional shape throughout its entire length, similar to the door edge guide portion 28 on the left vertical frame 20B side described above. Furthermore, this door edge guide portion 27 may be molded integrally with the right vertical frame 20A, as described above, or may be fixed thereto with an appropriate adhesive or sticky material. It is also possible to adopt a configuration in which such inclined guide surfaces 27a, 28a (door-edge guide portions 27, 28) are not provided on the vertical frames 20, 20.

[0032] The seal support piece 24 protrudes toward the center in the left-right direction from a midpoint of the fixed piece 21 of the vertical frame 20 in the projection direction and extends over approximately the entire length of the vertical frame 20. This seal support piece 24 is located approximately in the center of the fixed piece 21 in the projection direction. In the illustrated example, the seal support piece 24 is located slightly offset toward the exterior side from the projection center of the fixed piece 21 in the projection direction. This seal support piece 24 is approximately plate-shaped and disposed so that its thickness is in the projection direction. The protruding dimension of this seal support piece 24 is smaller than the protruding dimension of the protruding pieces 22, 23. The seal support piece 24 of the right vertical frame 20A and the interior protruding piece 22 define both sides in the projection direction of a storage section 29 that stores the leading end of the interior shoji screen 40A in the closed position. The seal support piece 24 of the left vertical frame 20B and the outdoor protruding piece 23 define both sides of the storage section 29 in the forward direction, which stores the leading end of the outdoor shoji screen 40B in the closed position.

[0033] The first seal portions 25, 25 and the second seal portions 26, 26 provided on both sides of the seal support piece 24 in the thickness direction are provided so as to extend over substantially the entire length of the vertical frame 20. The first seal portions 25, 25 and the second seal portions 26, 26 may be formed from, for example, a soft resin such as soft PVC (polyvinyl chloride), a thermoplastic elastomer (TPE), rubber, etc. Furthermore, the first seal portions 25, 25 and the second seal portions 26, 26 may be integrally molded with the seal support piece 24 (vertical frame 20) by two-color molding (molding of different materials) or the like, or may be fixed to the seal support piece 24 by an appropriate adhesive, welding, or the like.

[0034] The first seal portions 25, 25 on both sides of the seal support piece 24 in the thickness direction are positioned to coincide with each other in the protruding direction of the seal support piece 24 along the front direction of the vertical frame 20. These first seal portions 25, 25 are generally plate-shaped and arranged so that their thickness direction is the front direction of the vertical frame. These first seal portions 25, 25 have the same extension and thickness dimensions. These first seal portions 25, 25 have generally flat surfaces on both sides in the thickness direction that are perpendicular to the front direction of the vertical frame. These first seal portions 25, 25 may be configured so that their thickness decreases toward the tip end of their extension direction. The extension dimension of these first seal portions 25, 25 may be appropriately determined taking into account positional deviation in the thickness direction of the shoji screen 40 so that they can abut against the seal-facing surface 60a of the shoji screen 40, or may be appropriately determined so as not to interfere with opening and closing due to excessive contact. In the illustrated example, the tip of the first seal portion 25 slightly abuts against the seal-facing surface 60a of the shoji screen 40, but this is not a limitation. Furthermore, the position of these first seal portions 25, 25 in the front direction may be appropriately determined from the perspective of suppressing interference with the second seal portions 26, 26 described below, and so as not to interfere with the accessibility of the shoji screen 40.

[0035] The second seal portions 26, 26 on both sides of the seal support piece 24 in the thickness direction are positioned to coincide with each other in the protruding direction of the seal support piece 24, which is along the front direction of the vertical frame 20. These second seal portions 26, 26 are generally plate-shaped and arranged so that their thickness direction is generally in the front direction of the vertical frame. These second seal portions 26, 26 have the same extension and thickness dimensions. Unlike the first seal portions 25, 25, which have generally flat surfaces on both sides in the thickness direction perpendicular to the front direction of the vertical frame, these second seal portions 26, 26 are formed in an inclined shape so that they are closer to the fixing piece 21 as they extend toward their distal ends. These second seal portions 26, 26 may be configured so that their thickness decreases as they extend toward their distal ends. The extension dimension of these second seal portions 26, 26 may be appropriately determined taking into account positional deviation in the thickness direction of the shoji screen 40 so that they can abut against the corner 60c between the leading end surface 60b of the shoji screen 40 and the seal-opposing surface 60a. The extension dimension of the second seal portions 26, 26 may also be appropriately determined from the perspective of suppressing interference with the fixing piece 21 or a cap that closes the fastener insertion hole provided on the leading end surface 60b. The extension dimension of these second seal portions 26, 26 may be approximately 1.2 to 2 times the extension dimension of the first seal portions 25, 25, which have the extension dimension described above. In the illustrated example, the tip side of the second seal portion 26 is slightly deformed toward the fixing piece 21 and abuts against the corner 60c, but this is not a limitation. Furthermore, the positions of these second seal portions 26, 26 in the facing direction may be set to appropriate positions from the viewpoint of suppressing interference with the fixed piece portion 21, etc.

[0036] Of the first seal portions 25, 25 on both sides of the right vertical frame 20A in the projection direction (thickness direction of the seal support piece portion 24), the first seal portion 25 that extends toward the room abuts against the seal-facing surface 60a facing the outside of the leading end of the indoor shoji screen 40A. In other words, the seal-facing surface 60a facing the outside of the leading end of the indoor shoji screen 40A is the first surface that the first seal portion 25 of the right vertical frame 20A abuts against. Of the first seal portions 25, 25 on both sides of the left vertical frame 20B in the projection direction (thickness direction of the seal support piece portion 24), the first seal portion 25 that extends to the outside of the room abuts against the seal facing surface 60a facing the room at the door leading end of the outside shoji screen 40B. In other words, the seal facing surface 60a facing the room at the door leading end of the outside shoji screen 40B is the first surface that the first seal portion 25 of the left vertical frame 20B abuts against. The seal facing surfaces 60a, 60a of the indoor-side shoji screen 40A and the outdoor-side shoji screen 40B are surfaces facing the seal support piece portion 24, which is on one side in the shoji screen thickness direction. Furthermore, of the second seal portions 26, 26 on both sides of the right vertical frame 20A in the view direction, the second seal portion 26 that extends toward the indoor side abuts against the outdoor corner portion 60c of the door-front end of the indoor side shoji screen 40A. Of the second seal portions 26, 26 on both sides of the left vertical frame 20B in the view direction, the second seal portion 26 that extends to the outside of the room abuts against the corner 60c on the inside of the door-front end of the outside shoji screen 40B.

[0037] In addition to the first seal portions 25 and the second seal portions 26, the seal support piece portions 24, 24 of each vertical frame 20, 20 may be provided with a further seal portion. In addition, in the above example, the first seal portion 25, 25 and the second seal portion 26, 26 are provided on both thickness-wise sides of the seal support piece 24, 24 of each vertical frame 20, 20, but they may be provided only on the seal-facing surfaces 60a, 60a, which are on one side of the thickness-wise direction of the seal support piece 24, 24. In other words, when the shoji screens 40, 40 are arranged right-front as in the illustrated example, the first seal portion 25 and the second seal portion 26 may be provided only on the indoor side of the seal support piece 24 of the right vertical frame 20A, and the first seal portion 25 and the second seal portion 26 may be provided only on the outdoor side of the seal support piece 24 of the left vertical frame 20B. Furthermore, in the above example, the extension dimension of the first seal portion 25 is smaller than the extension dimension of the second seal portion 26, but the present invention is not limited to this example.

[0038] The upper frame 11, lower frame 15, and left and right vertical frames 20, 20 constituting the frame body 10 may be made of metal, resin for thermal insulation, or fiber-reinforced resin containing reinforcing fibers such as glass fiber or carbon fiber. The upper frame 11, lower frame 15, and left and right vertical frames 20, 20 may be extrusion-molded products with a substantially uniform cross-sectional shape along their entire length. The upper frame 11, lower frame 15, and left and right vertical frames 20, 20 may be joined together in a frame-like manner by welding or suitable fasteners. While the illustrated example shows a case in which the longitudinal end faces of the upper frame 11 and lower frame 15 butt the side faces of the longitudinal ends of the left and right vertical frames 20, 20 in a vertically butted configuration, the longitudinal ends may be inclined, and the inclined faces may butt together in a taut configuration.

[0039] As shown in Figures 1 and 4, the shoji screen 40 comprises an upper frame 44, a lower frame 50, and left and right vertical frames 60, 70. The shoji screen 40 is configured with a translucent panel 41 that forms the face panel within the frame body including the upper frame 44, lower frame 50, and left and right vertical frames 60, 70. The shoji screen 40 is configured such that the longitudinal end faces of the upper frame 44 and lower frame 50 butt up against the side faces of the longitudinal ends of the left and right vertical frames 60, 70, and these are joined in a vertically aligned manner. As shown in Figures 2 and 3, the panel of this shoji screen 40 has a multi-layered structure with multiple (two in the illustrated example) light-transmitting panels 41, 41 arranged in the thickness direction of the shoji screen. These light-transmitting panels 41, 41 may be glass panels or may be made of a synthetic resin material such as acrylic or polycarbonate. These light-transmitting panels 41, 41 are spaced apart in the thickness direction via appropriate spacers 42 formed in a roughly frame shape along the four peripheral edges. In addition, an appropriate sealant 43 is provided around the outer periphery of the spacer 42 to seal the vacuum layer or hollow layer filled with various gases between the light-transmitting panels 41, 41.

[0040] Plate receiving grooves 46, 52, 62, 72 for receiving the four peripheral edges of the light-transmitting plates 41, 41 are provided on the inner periphery of each of the upper frame 44, the lower frame 50, and the left and right vertical frames 60, 70. These plate receiving grooves 46, 52, 62, 72 are provided so as to extend over substantially the entire length of the upper frame 44, the lower frame 50, and the left and right vertical frames 60, 70. These plate receiving grooves 46, 52, 62, 72 are provided so as to be aligned with each other in the thickness direction of the shoji screen. Appropriate gaskets that adhere to the four peripheral edges of the light-transmitting plates 41, 41 and the sealing material 43 may be provided within these plate receiving grooves 46, 52, 62, 72 so as to extend over substantially the entire circumference. An example of the specific configuration of the plate receiving grooves 46, 52, 62, 72 of the upper frame 44, the lower frame 50 and the left and right vertical frames 60, 70 will be described later.

[0041] As shown in FIGS. 1 and 4, the upper frame 44 is elongated in the left-right direction. As shown in Fig. 3, the upper frame 44 is provided with a rail receiving groove 47 that opens upward and extends along its entire length to receive the rail portion 13 of the upper frame 11 (see also Figs. 9(a) and 10(a)). The rail receiving groove 47 is a substantially square groove whose groove width is greater than the thickness of the rail portion 13 and whose groove depth is greater than the protruding dimension of the rail portion 13. This upper frame 44 comprises an upper frame body 45 that forms the outer shell of the upper frame 44, groove seal portions 48, 48 that extend in directions facing each other from both edges of the opening width direction of the rail receiving groove 47 of this upper frame body 45 and whose extending tips are close to or abut the rail portion 13, and a frame reinforcing member 49 that is arranged to partition the rail receiving groove 47.

[0042] The upper frame body 45 is provided with thin plate-like pieces whose thickness direction is the same as the shoji thickness direction so as to define both sides in the groove width direction of the rail receiving groove 47. The upper ends of these thin plate-like pieces on both sides are provided with engaging portions that protrude and hang down in directions facing each other so as to define a groove portion that receives the upper ends of both side wall portions of the frame reinforcing member 49. The upper end surfaces of these thin plate-like pieces on both sides form the upper side surface 45b (see Figure 10(c)) of the upper frame body 45 (upper frame 44). The lower portion of the upper frame body 45 is provided with a plate receiving groove 46 that opens downward and extends the entire length to receive and hold the upper ends of the translucent plates 41, 41. Both sides of the groove width of this plate receiving groove 46 are partitioned by thin plate-like pieces whose thickness is the same as the thickness of the shoji screen. These thin plate-like pieces are cut out at both ends of the upper frame length to allow the thin plate-like pieces of the vertical frames 60, 70, which will be described later, to be received. Between the portion of the upper frame body 45 that defines the plate receiving groove 46 and the portion that defines the rail receiving groove 47, there is provided a fastening portion 45a to which fasteners that join the upper frame 44 to the left and right vertical frames 60, 70 are attached. The upper frame body 45 may be made of metal, but like the frame body 10 described above, it may also be made of resin from the standpoint 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 illustrated example shows an example in which the thickness dimension of the lower portion of the upper frame body 45 is larger than the thickness dimension of the portion defining the rail receiving groove 47 of the upper frame body 45 and the portion where the fastening portion 45a is provided, but this is not limited to such an example.

[0043] The groove seal portions 48, 48 are thin plates arranged with their thicknesses aligned vertically and are provided along the upper surface 45b of the upper frame body 45 (upper frame 44) over substantially the entire length of the upper frame 44. The groove seal portions 48, 48 may have a thickness that decreases toward the end of their extension, or may have a generally cylindrically bulging portion at their end. Similarly to the first seal portion 25 and the second seal portion 26, the groove seal portions 48, 48 may be formed from soft resin, thermoplastic elastomer, rubber, or the like. The groove seal portions 48, 48 may be integrally molded with the upper frame body 45 (upper frame 44) by two-color molding (molding using different materials), or may be fixed to the upper frame body 45 by an appropriate adhesive, welding, or the like. The upper surfaces of the groove seal portions 48, 48 may be considered to be the upper surfaces of the upper frame 44.

[0044] The portion of the upper stile body 45 that defines the rail-receiving groove 47 is formed in a generally rectangular groove shape, with a stile reinforcing member 49 provided along the groove bottom surface and both side walls in the groove width direction. This stile reinforcing member 49 has a groove bottom piece that is arranged so that its thickness direction is the up-down direction and that follows the groove bottom surface, and both side wall portions that rise from both ends of the groove bottom piece in the groove width direction and follow each of the both side walls in the groove width direction, and has a generally U-shaped cross section. This stile reinforcing member 49 may be made of a metal such as aluminum or stainless steel. The upper frame 44 is not limited to the above-described configuration, and may have various other configurations.

[0045] As shown in FIGS. 1 and 4, the lower frame 50 is elongated in the left-right direction. As shown in Figure 3, the lower frame 50 is provided with a door roller 59 that is guided by the lower frame 15. As shown in Figures 8(c) and (d), the door roller 59 is provided in a door roller unit 58 that includes support side walls 58a, 58a that are arranged on both sides of the door roller 59 in the shoji thickness direction and support the door roller 59 so that it can rotate freely. As shown in Figures 7 and 8(a) to (d), the bottom frame 50 is provided with a frame reinforcing member 55 which penetrates in the shoji thickness direction so as to expose both sides (side wall surfaces) 58b, 58b of the roller unit 58 in the shoji thickness direction and which is open upward and has a receiving recess 56a for receiving the roller unit 58. With this configuration, the bottom frame 50 can be reinforced by the frame reinforcing member 55. Furthermore, compared to a configuration in which the roller unit is disposed in a hollow portion provided in the frame reinforcing member, for example, it is possible to effectively reduce the thickness of the bottom frame 50 while ensuring the dimension of the roller unit 58 in the shoji thickness direction.

[0046] The bottom frame 50 is provided with a bottom frame body 51 which is arranged on both sides of the frame reinforcing member 55 in the shoji thickness direction and which constitutes a frame cover which covers both sides (side wall surfaces) 56b, 56b, 58b, 58b in the shoji thickness direction of the frame reinforcing member 55 and the door roller unit 58. With this configuration, the bottom frame body 51 can cover both sides in the shoji thickness direction of the frame reinforcing member 55 and the door roller unit 58 which are exposed on both sides in the shoji thickness direction. The side wall surfaces 56b, 56b of the stile reinforcement member 55 in the shoji thickness direction are flush with the side wall surfaces 58b, 58b of the roller unit 58 in the shoji thickness direction. With this configuration, the thickness of the lower stile 50 can be more effectively reduced while ensuring the dimension of the roller unit 58 in the shoji thickness direction. The receiving recess 56a is configured to fit the door roller unit 58. With this configuration, the door roller unit 58 can be fitted into the receiving recess 56a of the stile reinforcing member 55 for assembly, which also reduces the number of steps required for fastening screws or the like.

[0047] The stile reinforcement member 55 includes a first reinforcement member 56 having a receiving recess 56a, and a second reinforcement member 57 placed above the first reinforcement member 56 so as to block the upper opening of the receiving recess 56a. With this configuration, the receiving recess 56a of the first reinforcement member 56 can be blocked by the second reinforcement member 57, and the upward movement of the door roller unit 58 fitted into the receiving recess 56a can be suppressed. Furthermore, the first reinforcement member 56 having the receiving recess 56a can be reinforced by the second reinforcement member 57, and the second reinforcement member 57 makes it easier to evenly support the load of the translucent plates 41, 41 provided on the upper side of the bottom stile 50, thereby more effectively reinforcing the bottom stile 50. One of the first reinforcing member 56 and the second reinforcing member 57 is provided with an engaging rib 56c extending in the longitudinal direction of the stile that engages with an engaging groove 57b provided on the other side and extending in the longitudinal direction of the stile. With this configuration, by engaging the engaging rib 56c of one of the first reinforcing member 56 and the second reinforcing member 57 with the engaging groove 57b of the other, the first reinforcing member 56 and the second reinforcing member 57 are less likely to shift in position relative to each other in the shoji thickness direction.

[0048] Specifically, the bottom frame 50 is provided with a plurality of (two in the illustrated example) door roller units 58, 58 spaced apart in the lengthwise direction of the bottom frame. As will be described in detail later, the bottom frame 50 is provided with a plate receiving groove 52 that opens upward and a rail receiving groove 53 that opens downward, extending along its entire length. The bottom frame 50 also has groove seal portions 54, 54 that extend in directions facing each other from both edges in the width direction of the opening of the rail receiving groove 53, and whose extending tips are close to or abut the rail portion 17 (see FIG. 3). The door roller units 58, 58 are provided at both longitudinal ends of the bottom frame 50. Receiving recesses 56a, 56a that receive the door roller units 58, 58 are provided at both longitudinal ends of the first reinforcing member 56. The receiving recesses 56a, 56a and the door roller units 58, 58 at both longitudinal ends have the same configuration, so one of them will be described below as an example. The door roller unit 58 is configured such that a door roller 59 is rotatably mounted within a thin, approximately rectangular parallelepiped main body in the shoji screen thickness direction. Side wall surfaces 58b, 58b on both sides of the main body in the thickness direction are approximately flat surfaces perpendicular to the thickness direction. The top surface of the main body is approximately horizontal and flat. Recessed steps that open outward and downward in the longitudinal direction are provided at the lower end portions of both sides of the main body in the bottom frame longitudinal direction. The areas above the recessed steps on both sides of the main body in the bottom frame longitudinal direction and the step bottom surfaces facing outward in the longitudinal direction of the recessed steps are approximately flat surfaces perpendicular to the longitudinal direction.

[0049] The door roller 59 is rotatably held around an axle 59a that runs along the thickness direction of the shoji screen in the main body of the door roller unit 58. The main body of the door roller unit 58 is provided with an appropriate bearing portion that rotatably holds the axle 59a of the door roller 59. As shown in Figure 8(c), the door roller 59 is arranged so that its lower end portion is exposed on the underside of the main body of the door roller unit 58. This door roller 59 rolls along the rail portion 17 of the bottom frame 15, guiding the lower end side of the shoji screen 40 in the left-right direction. The outer peripheral surface of this door roller 59 is provided with an engagement groove that opens radially outward, extends around the entire circumference, and engages with the rail portion 17 of the bottom frame 15. By engaging the upper end of the rail portion 17 of the bottom frame 15 with the engagement groove of this door roller 59, swinging of the lower end side of the shoji screen 40 in the shoji screen thickness direction is suppressed.

[0050] As shown in Figures 7 and 8(a) to 8(d), the door roller unit 58 is provided with a position adjustment operation part 58c that protrudes outward from the main body in the longitudinal direction of the lower stile and is operated when adjusting the vertical position of the door roller 59 relative to the main body. The tip of this position adjustment operation part 58c in the protruding direction is provided with a cross recess or a slot so that it can be operated with a jig such as a screwdriver. This position adjustment operation part 58c may be operable via an appropriate operation hole provided in the lower end of the vertical stiles 60, 70 described below. The door roller unit 58 is provided with a protruding piece 58d that protrudes from the main body toward the inside in the longitudinal direction of the bottom sill. This protruding piece 58d is generally plate-shaped and arranged so that its thickness direction is the up-down direction. This protruding piece 58d has a through-hole that penetrates it in the thickness direction. This protruding piece 58d may abut against or be positioned adjacent to a groove bottom piece that defines the groove bottom of the rail-receiving groove 53 provided in the first reinforcing member 56. An appropriate fastener may be attached to the groove bottom piece through the through-hole of this protruding piece 58d. This protruding piece 58d may be provided to secure the door roller unit 58 to the bottom sill of another shoji screen when the door roller unit 58 is used as a shared part for another shoji screen. Note that the door roller unit 58 may be configured without the protruding piece 58d.

[0051] The first reinforcing member 56 is elongated in the left-right direction and is provided over substantially the entire length of the lower frame 50. The first reinforcing member 56 is a hollow cylinder with a hollow portion extending longitudinally. The first reinforcing member 56 is a flat, approximately rectangular cylinder with a thickness that is aligned with the shoji screen thickness direction, and is formed by side wall portions on both sides that form side wall surfaces 56b, 56b on both sides in the shoji screen thickness direction, an upper wall portion whose upper surface is flush with the upper surface of the main body of the roller unit 58, and a groove bottom piece that defines the groove bottom of the rail-receiving groove 53. The first reinforcing member 56 also has groove side walls that define both sides of the rail-receiving groove 53 in the groove width direction and hang down from both edges of the groove bottom piece in the shoji screen thickness direction. The rail-receiving groove 53 is defined by these groove side walls and groove bottom piece, and has a substantially rectangular groove shape. These groove side walls are provided so as to be continuous with the side wall portions except for their lower ends, and constitute side wall surfaces 56b, 56b on both sides in the shoji thickness direction of the first reinforcing member 56. The lower ends of these groove side walls are provided with engagement pieces that protrude slightly outward in the shoji thickness direction and downward.

[0052] An engaging ridge 56c is provided on the upper surface of the first reinforcing member 56 as one of the engaging ridge 56c and the engaging groove 57b. Two engaging ridges 56c, 56c are provided so as to protrude upward from both edges of the upper wall of the first reinforcing member 56 in the shoji thickness direction. These engaging ridges 56c, 56c are provided so as to extend over the entire length of the first reinforcing member 56 except for the locations where the receiving recesses 56a, 56a described below are provided. The engaging ridges 56c, 56c are slightly smaller in thickness than the side wall portions on both sides so that recessed portions are formed on both sides in the shoji thickness direction.

[0053] The receiving recess 56a has a shape that corresponds to the outer shape of the main body of the door roller unit 58. This receiving recess 56a is provided so that the main body of the door roller unit 58 fitted therein is substantially immovable in the longitudinal direction of the lower stile, and so that the upper surface of the main body and the upper surface of the upper wall of the first reinforcing member 56 are flush with each other. The receiving recess 56a is defined by a recessed bottom portion against which the underside of the main body of the door roller unit 58 abuts, and recessed side portions against which both longitudinal sides of the bottom stile of the main body abut or are close to each other. The receiving recess 56a is formed as a cutout in the first reinforcing member 56, which is substantially rectangular tubular as described above, so as to leave the lower end portions of the groove side walls on both sides that define both sides of the groove width direction of the rail receiving groove 53. In other words, the recessed bottom portion of the receiving recess 56a is defined by surfaces (cut surfaces) facing upward at the lower end portions of the groove side walls on both sides. An opening is provided in the recessed bottom portion of the receiving recess 56a to expose the door roller 59 between the groove side walls on both sides. The concave side portions on both sides of the receiving recess 56a are defined by surfaces (cut surfaces) facing the longitudinal direction of the bottom stile of the side wall portions, upper wall portion, groove bottom piece portion, and upper portions of the groove side wall portions on both sides, including the above-mentioned engaging ribs 56c, 56c. The lower end portions of the concave side portions on both sides of the receiving recess 56a are provided with protruding steps corresponding to the recessed steps provided at the lower end portions of both side surfaces in the longitudinal direction of the bottom stile of the main body portion of the door roller unit 58. The upper wall portion on the outer side in the longitudinal direction of the receiving recess 56a of the first reinforcing member 56 is cut away so as to be able to receive the position adjustment operating portion 58c of the above-described door roller unit 58.

[0054] The second reinforcing member 57 is elongated in the left-right direction and is provided over approximately the entire length of the bottom frame 50. In other words, the length of the second reinforcing member 57 is the same as the length of the first reinforcing member 56. The dimension of this second reinforcing member 57 in the shoji thickness direction is the same as the thickness of the first reinforcing member 56. The dimension of this second reinforcing member 57 in the up-down direction is smaller than the dimension of the first reinforcing member 56 in the up-down direction. The outer shape of this second reinforcing member 57 is approximately a square bar. The second reinforcing member 57 is provided with fastening portions 57a to which fasteners that join the lower frame 50 to the left and right vertical frames 60, 70 are fastened. An engagement groove 57b is provided on the underside of this second reinforcing member 57 as the other of the engagement protrusions 56c and engagement grooves 57b. Engagement grooves 57b are provided on both edges of the underside of the second reinforcing member 57 in the shoji thickness direction, corresponding to the two engagement protrusions 56c. These engagement grooves 57b open downward and extend the entire length of the second reinforcing member 57. These engagement grooves 57b are formed so that the engagement protrusions 56c can be fitted into them, and so that when they are fitted into them, the underside of the second reinforcing member 57 abuts or is close to the upper surfaces of the first reinforcing member 56 and the main body of the door roller unit 58.

[0055] Engagement pieces that protrude upward and extend along the entire length are provided on both edges in the shoji thickness direction on the upper surface of the second reinforcing member 57. The upper surface of the second reinforcing member 57 is generally horizontal and generally flat, excluding these engagement pieces. Each surface of this second reinforcing member 57 in the shoji thickness direction is configured to be flush with each surface of the engaging piece portion provided at the lower end of the first reinforcing member 56 in the shoji thickness direction when the engaging protrusions 56c, 56c of the first reinforcing member 56 are fitted into the engaging grooves 57b, 57b, respectively. The second reinforcing member 57 may be simply placed on the first reinforcing member 56, or may be fixed to the first reinforcing member 56 using an appropriate adhesive, bonding material, fastener, or the like. The first reinforcing member 56 and the second reinforcing member 57 may be made of metal such as aluminum or stainless steel, and may be extrusion molded products with a uniform cross-sectional shape in the longitudinal direction, except for the above-mentioned receiving recess 56a, etc.

[0056] The stile body 51 has a hollow portion extending over its entire length, through which the stile reinforcing member 55 (first reinforcing member 56 and second reinforcing member 57) configured as described above is inserted longitudinally. The stile body 51 has side wall portions on both sides that define the hollow portion in the shoji thickness direction, and groove bottom pieces that define the upper side of the hollow portion and the groove bottom of the plate receiving groove 52. The inner surfaces of the side wall portions on both sides of the stile body 51 abut against or are close to the side wall surfaces 56b, 56b, 58b, 58b on both sides of the stile reinforcing member 55 and the roller unit 58 in the shoji thickness direction. This restricts movement of the roller unit 58 fitted into the receiving recess 56a of the stile reinforcing member 55 in the shoji thickness direction. The lower ends of the side walls on both sides are provided with engaging portions that protrude and rise in directions facing each other to define grooves that receive engaging pieces provided on the lower ends of the first reinforcing member 56. On both sides of the underside of the groove bottom pieces in the shoji thickness direction, grooves are provided that receive engaging pieces provided on the upper surface of the second reinforcing member 57. The engaging pieces on both the top and bottom of the stile reinforcing member 55 engage with these upper and lower grooves, restricting movement of the stile reinforcing member 55 in the up and down directions and in the shoji thickness direction within the lower stile main body 51.

[0057] The lower ends of the side wall portions on both sides of the lower frame body 51 and the groove side wall portions on both sides of the first reinforcing member 56 provided above them define both sides of the groove width direction of the rail receiving groove 53. Groove seal portions 54, 54 are provided along the lower end surfaces of both sidewall portions. These groove seal portions 54, 54 are thin plates arranged with their thicknesses aligned vertically and are provided over substantially the entire length of the lower frame 50. As described above, these groove seal portions 54, 54 may have a thickness that decreases toward the end in the extension direction, or may have a generally cylindrically bulging portion at the end. Also, as described above, these groove seal portions 54, 54 may be formed from soft resin, thermoplastic elastomer, rubber, or the like. Furthermore, these groove seal portions 54, 54 may be integrally molded with the lower frame main body 51 (lower frame 50) by two-color molding (molding using different materials) or the like, or may be fixed to the lower frame main body 51 by appropriate adhesive, welding, or the like.

[0058] The plate receiving groove 52 extends along the entire length of the upper portion of the stile body 51 and is configured to receive and hold the lower ends of the translucent plates 41, 41. The sides of the plate receiving groove 52 in the groove width direction are defined by thin plate-like pieces that rise upward from both edges of the groove bottom in the shoji thickness direction and whose thickness direction is the same as the shoji thickness direction. The surfaces of these thin plate-like pieces facing outward in the shoji thickness direction are positioned slightly outward in the shoji thickness direction relative to the surfaces of the lower portion of the stile body 51 facing outward in the shoji thickness direction. The surfaces of these thin plate-like pieces facing outward in the shoji thickness direction are flush with the surfaces of the thin plate-like pieces that define both sides of the plate receiving groove 46 of the upper stile body 45. These thin plate-like pieces are cut out at both ends of the lower stile in the longitudinal direction so that they can accommodate the thin plate-like pieces of the vertical stiles 60, 70 described below. The lower frame body 51 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.

[0059] The bottom frame 50 may be assembled by fitting the roller units 58, 58 into the receiving recesses 56a, 56a on both longitudinal ends of the first reinforcing member 56, and then inserting the roller units 58, 58 into the hollow portion of the bottom frame main body 51 with the second reinforcing member 57 placed above them. This makes it nearly impossible for the roller units 58, 58 fitted into the receiving recesses 56a, 56a of the first reinforcing member 56 to move, making fastening with fasteners unnecessary. Furthermore, if the left and right vertical stiles 60, 70 described below are joined so as to abut both longitudinal end faces of the bottom frame 50, it also becomes nearly impossible for the stile reinforcing member 55 to move longitudinally relative to the bottom frame main body 51, making it unnecessary to fix the stile reinforcing member 55 to the bottom frame main body 51 with fasteners or the like. The lower frame 50 is not limited to the above-described configuration, and may have various other configurations.

[0060] The left and right vertical frames 60, 70 are elongated in the vertical direction as shown in Figures 1 and 4. As will be described in detail later, the left and right vertical frames 60, 70 are provided with plate receiving grooves 62, 72 that open in directions facing each other and that receive and hold the left and right ends of the light-transmitting plates 41, 41, extending over their entire lengths as shown in Figure 2. One of these left and right vertical frames 60, 70 becomes the door end frame 60 that forms the door end side end that is stored in the storage section 29 of the vertical frame 20 when closed, and the other becomes the door joint frame 70 that is overlapped with the other shoji screen 40 in the shoji screen thickness direction when closed. As shown in Figure 5, the door-end side of the door stile (outdoor door stile) 60B of the outdoor shoji screen 40B has a recessed step 63 that opens toward the door end and the outside and receives the outdoor projection 23. With this configuration, it is not necessary to position the outdoor projection 23 further outside than the surface of the outdoor door stile 60B facing the outside, so as to define a storage section 29 that corresponds to the overall thickness dimension in the thickness direction of the outdoor door stile 60B, and the projected dimension of the vertical frame 20 can be effectively reduced. In addition, the stepped wall surface 63b of the recessed step 63 facing the door end can also be used as a handle.

[0061] The exterior side surface 61a of the exterior door frame 60B, which faces the outside of the joining side of the recessed step 63, is flush with the exterior side surface 23a of the exterior projection 23. With this configuration, the entire interior window device 1 can be made more compact in the viewing direction than a configuration in which the exterior door frame 60B has a section that protrudes further outside than the exterior projection 23. This makes it easier to position the interior window device 1 closer to the exterior window 3. On the indoor side of the outdoor door stile 60B, there is provided a recessed handle 64 that opens toward the indoor side and has a depth dimension along the shoji thickness direction that is greater than the step dimension along the shoji thickness direction of the recessed step 63. This configuration improves the ease of opening and closing from the indoor side, which is more frequently opened and closed from the outdoor side.

[0062] Specifically, the outdoor door stile 60B has a door stile body 61 that is hollow and cylindrical and forms the outer shell of the outdoor door stile 60B. The portion of the recessed step 63 of the door stile body 61 that forms the step bottom surface 63a facing the outside of the room is flat. With this configuration, the door stile body 61 can be made lighter and use less material than a configuration in which the recessed step 63 is further provided with a handle recess or the like. The recessed handle portion 64 is provided over the entire length of the door stile body 61. With this configuration, operability can be improved. The door end stile body 61 is a flat, roughly square tube whose thickness is in the same direction as the shoji thickness direction, and is made up of a door end wall portion that forms the door end side end face 60b, an outdoor wall portion that is provided with a recessed step portion 63, an indoor wall portion that is provided with a handle recess 64, and a groove bottom piece that defines the groove bottom of the board receiving groove 62. The door end wall portion of the door end stile body 61 is provided with fastener insertion holes through which fasteners that secure the outdoor door end stile 60B to the upper stile 44 and the lower stile 50 are inserted, and an operation hole through which a jig that operates the position adjustment operation part 58c is inserted, and caps are attached to cover these holes (see also Figure 4).

[0063] The outdoor wall of the door frame body 61 has a stepped recessed portion 63 extending from the joining side portion that forms the flat outdoor side surface 61a perpendicular to the shoji thickness direction. This outdoor wall portion has a flat joining side portion, a bottom surface portion that forms the flat step bottom surface 63a, and a wall surface portion that connects these and forms the stepped wall surface 63b of the recessed portion 63. The step bottom surface 63a of the recessed step portion 63 is a flat surface parallel to the exterior side surface 61a of the mating side portion. The step bottom surface 63a of the exterior door edge stile 60B forms a projection-opposing surface 60d that is arranged to face the exterior projection portion 23. The step wall surface 63b of the recessed step portion 63 is formed so as to be perpendicular to the exterior side surface 61a and the step bottom surface 63a. The step dimension of this recessed step portion 63 (the dimension along the thickness direction of the shoji screen from the exterior side surface 61a to the step bottom surface 63a) may be an appropriate dimension from the viewpoint of ease of handling and from the viewpoint of making the exterior door stile 60B thinner, and may be, for example, about 3 mm to 5 mm.

[0064] The indoor wall of the door end stile body 61 is configured with a section (recess dividing section) 64a in the left-right middle section that defines the handle recess 64. The door end side section and the door join side section, which are on the left and right sides of the recess dividing section 64a on the indoor wall, are flat plates whose indoor sides are on the same plane and perpendicular to the shoji thickness direction. The indoor side of the door end side section of the outdoor door end stile 60B forms the seal facing surface 60a, which is arranged to face the seal support piece 24 described above. The handle recess 64 is a rectangular groove, defined by a recessed bottom surface facing the interior and sidewall surfaces on both sides of the groove width. The handle recess 64 is positioned closer to the door edge than the stepped wall surface 63b of the recessed step 63. When the exterior shoji screen 40B is closed, the handle recess 64 is positioned closer to the door edge (toward the center in the left-right direction) than the leading edge of the seal support piece 24 of the left vertical frame 20B. The depth and width of the handle recess 64 may be appropriately determined based on factors such as ease of use and the thinness of the exterior door edge stile 60B. For example, the depth may be approximately 1.2 to 1.6 times the step dimension of the recessed step 63, and the width may be approximately 10 to 20 mm to allow for insertion of fingers. The recess partitioning portion 64a includes a recessed bottom plate-like portion that forms the recessed bottom surface of the handhold recess 64, and side wall plate-like portions that form the side wall surfaces on both sides of the handhold recess 64.

[0065] The plate receiving groove 62 extends from the hollow portion of the door stile body 61 to the joint side along its entire length, and is configured to receive and hold the end of one of the translucent plates 41, 41 in the left-right direction. Both sides of the groove width of this plate receiving groove 62 are defined by thin plate-like pieces that extend from both edges of the groove bottom piece in the shoji thickness direction toward the joint side and whose thickness direction is the same as the shoji thickness direction. The surfaces of these thin plate-like pieces facing outward in the shoji thickness direction are flush with the surfaces of the joint side portion of the door stile body 61 that define the hollow portion, facing outward in the shoji thickness direction. A recess is provided at the lower end of this stile body 61 to receive the rail portion 17 of the bottom frame 15. In addition, an appropriate lower end cap or the like may be attached to the lower end of this stile body 61 to close the lower end opening of the stile body 61. In this case, a recess may also be provided in this lower end cap to receive the rail portion 17 of the bottom frame 15. The door stile body 61 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.

[0066] The outdoor door stile 60B is provided with a stile reinforcing member 65 that is inserted into the hollow portion of the door stile body 61. With this configuration, the outdoor door stile 60B can be reinforced. This stile reinforcement member 65 has an outer peripheral shape that roughly corresponds to the inner peripheral shape of the hollow portion of the door end stile main body 61. In the portion of this stile reinforcement member 65 that corresponds to the bottom side of the handle recess 64 and the recessed step 63, a groove-like portion that opens on both sides in the shoji thickness direction and extends over the entire length is provided so as to form a space between these bottom sides and the portion that defines these bottom sides. With this configuration, as will be described in detail later, it is possible to eliminate the need to process the stile reinforcement member 65 when attaching the handle member 90 (see Figure 14) in order to improve the handleability compared to the handle recess 64 and the recessed step 63.

[0067] The door-front end of this stile reinforcement member 65 is shaped to correspond to the shape of the door-front end of the hollow section of the door-front stile main body 61, and its dimension along the shoji thickness direction corresponds to the dimension along the same direction of the door-front end of the hollow section. The joint side portion of this stile reinforcement member 65 is shaped to correspond to the shape of the joint side portion of the hollow portion of the door end stile main body 61, and its dimension along the shoji thickness direction corresponds to the dimension along the same direction of the joint side portion of the hollow portion. The above-mentioned groove-like portions are formed on both sides of the shoji thickness direction between the door-front end and the joint side portion of this frame reinforcement member 65, and the dimensions along the shoji thickness direction of the portions that make up the groove bottom of these groove-like portions are smaller than the dimensions along the same direction of the portions corresponding to the bottom side of the hollow portion's handle recess 64 and recessed step portion 63. This stile reinforcement member 65 is provided so as to extend over substantially the entire length of the door end stile body 61. The length of this stile reinforcement member 65 may be smaller than the length of the door end stile body 61 so that a vibration prevention member 66 (see Figure 9(a)) to be described later, which is attached to the upper end of the door end stile body 61, and a lower end cap, which is attached to the lower end, can be received within the door end stile body 61. This stile reinforcement member 65 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.

[0068] As shown in Figures 9(a)-(c), a vibration-stopping member (door-end vibration-stopping member) 66 is attached to the upper end of the exterior door sill 60B (door-end sill body 61) so that it can be inserted. The vibration-stopping member 66 has a receiving groove 67 that receives the rail portion 13 provided on the upper frame 11. With this configuration, the door-end vibration-stopping member 66 attached to the upper end of the exterior door sill 60B receives the rail portion 13 of the upper frame 11, thereby suppressing vibration of the upper end of the exterior shoji screen 40B in the shoji thickness direction. The door-end vibration-stopping member 66 has a receiving recess 69 that receives the recessed portion 64a. With this configuration, the exterior door sill 60B has the above-mentioned handle recess 64 along its entire length, while the door-end vibration-stopping member 66 attached to the upper end can be made compact in the shoji thickness direction. This allows the outdoor shoji screen 40B, including the outdoor door frame 60B, to be made thinner, and the projected dimensions of the frame body 10 to which it is attached can also be made more compact. Both sides of the receiving groove 67 of the door end vibration stopper 66 in the groove width direction are defined by an indoor wall surface 67a that faces closely to the indoor side surface 13a of the rail portion 13, and an outdoor wall surface 67b that slopes toward the outdoor side as it moves from the opening side edge that faces closely to the outdoor side surface 13b of the rail portion 13 toward the groove bottom. With this configuration, the indoor side of the door end vibration stopper 66 is provided with a receiving recess 69 that receives the recessed portion dividing portion 64a as described above, thereby achieving a thin design, but the rail portion 13 can be received on the outdoor wall surface 67b side when the outdoor shoji screen 40B is installed at an angle from the indoor side.

[0069] As shown in Figure 9(a), this anti-vibration member 66 comprises a plate-like portion formed to define the opening edges on both sides of the receiving groove 67 in the groove width direction and provided to cover the upper end surface of the door stile main body 61, and an insertion portion 68 provided below this plate-like portion and inserted into the door stile main body 61. The plate-like portion is provided to cover the upper end surface of the door stile main body 61 except for the upper end surface of the tip end portion of the thin plate-like piece that defines the plate receiving groove 62 in the door stile main body 61 in the extension direction. The upper surface of this plate-like portion forms the upper end surface of the door stile anti-vibration member 66 and is provided to be flush with the upper surface 45b of the upper stile 44. This plate-like portion has recesses corresponding to the recessed step portion 63 and the handle recess 64. The insertion portion 68 is shaped so that it can be fitted into the hollow portion of the door stile main body 61. This insertion portion 68 has multiple rib-like pieces that protrude in the shoji thickness direction from both side walls that define the receiving groove 67 and are spaced apart in the left-right direction. The insertion portion 68 has an engaging protrusion that protrudes downward more than other portions and is fitted into an engaging recess provided in the stile reinforcement member 65. The insertion portion 68 may also be provided with a fixing piece that protrudes downward more than other portions and has an insertion hole through which a fastener that joins the exterior door stile 60B to the upper stile 44 is inserted, or an insertion hole through which a fastener that secures the door stile vibration stopper member 66 to the door stile main body 61 is inserted. The above-mentioned stile reinforcement member 65 may be configured to be held in the door end stile body 61 by being sandwiched between the lower end cap on its lower end side and the door end vibration prevention member 66 on its upper end side. With such a configuration, it is possible to eliminate the need for fasteners or the like to fix the stile reinforcement member 65 to the door end stile body 61.

[0070] The receiving groove 67 is open upward and is provided so as to extend over the entire left-right direction of the door tip anti-vibration member 66. This receiving groove 67 is provided so as to coincide with the rail receiving groove 47 of the upper frame 44 described above in the shoji thickness direction and so as to communicate with the rail receiving groove 47. A notched recess is provided at the upper end of the door tip stile body 61 to receive the portion that defines the receiving groove 67 of the door tip anti-vibration member 66. The receiving groove 67 is defined by an upwardly facing groove bottom, an indoor wall surface 67a, and an outdoor wall surface 67b. The groove depth of the receiving groove 67 may be any appropriate dimension so that, when the outdoor shoji screen 40B is installed in a staggered fashion, the rail portion 13 of the upper frame 11 can be received therein and the rail portion 17 of the lower frame 15 can be received in the rail receiving groove 53 (see FIG. 3) at its lower end. In the illustrated example, the groove depth of the receiving groove 67 is set to the same dimension as the protruding dimension of the rail portion 13 of the upper frame 11, but is not limited to this example.

[0071] The groove width dimension on the opening side of the receiving groove 67 corresponds to the thickness dimension of the rail portion 13 of the upper frame 11. The groove width dimension on the opening side of this receiving groove 67 may be slightly larger than the thickness dimension of the rail portion 13. The indoor-side wall surface 67a of the receiving groove 67 is formed as a flat surface parallel to the indoor side surface 13a of the rail portion 13 throughout the entire groove depth direction. The side wall portion constituting this indoor-side wall surface 67a also constitutes the concave bottom of the receiving recess 69 that receives the recess partitioning portion 64a. In other words, the side wall portion constituting the indoor-side wall surface 67a is provided in a flat plate shape on the outdoor side of the recess partitioning portion 64a so as not to interfere with the recess partitioning portion 64a.

[0072] The outdoor wall surface 67b of the receiving groove 67 has an inclined surface whose opening portion slopes away from the indoor wall surface 67a toward the groove bottom. In other words, the opening portion of the outdoor wall surface 67b is inclined so that the groove width of the opening portion of the receiving groove 67 increases toward the groove bottom. The groove bottom portion of the outdoor wall surface 67b is flat and parallel to the indoor wall surface 67a. In other words, the groove width of the groove bottom portion of the receiving groove 67 is uniform. The outdoor wall surface 67b may be appropriately shaped so as not to obstruct the reception of the rail portion 13 of the upper frame 11 when the outdoor shoji screen 40B is installed at an angle in a staggered manner, as shown in FIG. 9(b). This door end vibration prevention member 66 may be, for example, a resin molded product with good sliding properties.

[0073] As shown in FIG. 5, the door frame body 61 and the frame reinforcement member 65 of the door frame (indoor door frame) 60A of the indoor shoji screen 40A are configured similarly to the door frame body 61 and the frame reinforcement member 65 of the outdoor door frame 60B described above. The door frame body 61 and the frame reinforcement member 65 of the indoor door frame 60A and the door frame body 61 and the frame reinforcement member 65 of the outdoor door frame 60B are configured so that when one is rotated 180 degrees around an axis along the projection direction, they approximately match the other. In other words, the indoor door frame 60A and the outdoor door frame 60B are formed in a left-right reversed shape in cross section. Therefore, a description of the same configuration of the indoor door frame 60A as that of the outdoor door frame 60B will be omitted. The indoor side surface of the door tip portion of this indoor side door stile 60A constitutes a projection-opposing surface 60d, which is arranged to face the indoor side projection 22. The indoor side door stile 60A also constitutes a seal-opposing surface 60a, which is arranged so that the step bottom surface 63a of the recessed step 63 faces the seal support piece 24. A similar lower end cap is provided at the lower end of this indoor door stile 60A. A similar door stile 66 is also provided at the upper end of the indoor door stile 60A. These lower end caps and door stile 66 may be shaped like the lower end caps and door stile 66 of the outdoor door stile 60B, mirror-inverted from side to side, to match the shape of the door stile body 61 of the indoor door stile 60A. The above-described configurations of the door end vibration prevention member 66, door end stile main body 61, and stile reinforcement member 65 that make up the indoor door end stile 60A and the outdoor door end stile 60B are merely examples, and various other configurations may also be used.

[0074] As shown in Figures 10(a) to 10(c), at least one of the vertical frames 60, 70 (70) is joined to the upper frame 44 in a stepped manner so that its upper end surface 71a is lower than the upper side surface 45b of the upper frame 44. A vibration-stopping member (77) is attached to the upper end of the vertical frame (70), which is exposed at the upper end side of the vertical frame (70) to fill the step with the upper frame 44, and has a flat exposed portion 79 with a flat upper side surface 79a. The vibration-stopping member (77) has a receiving groove 78 that receives the rail portion 13 of the upper frame 11. With this configuration, by having the vibration-stopping member (77) attached to the upper end of the vertical frame (70) receive the rail portion 13 of the upper frame 11, it is possible to suppress vibration of the upper end of the shoji screen 40 in the shoji screen thickness direction. Furthermore, compared to a configuration in which an upward protrusion is provided at the top end of the shoji's anti-vibration member, damage to the flat exposed portion 79 exposed at the top end of the vertical frame (70) can be suppressed. Furthermore, when installing the shoji 40 to the frame body 10, the flat exposed portion 79 is less likely to get in the way, allowing for smooth installation. In Figure 10, the indoor-side stile 70A of the indoor-side shoji 40A is illustrated as at least one of the left and right vertical frames 60, 70. Below, this indoor-side stile 70A will be described as the stile 70, and the anti-vibration member attached to its upper end will be described as the stile 77. However, the outdoor-side stile 70B of the outdoor shoji 40B is also shaped inverted around an axis along the vertical direction and has a generally similar configuration, and differences between them will be discussed later.

[0075] Specifically, as shown in Figure 2, the joint frame 70 is provided with a joint frame main body 71 that is hollow and forms the outer shell of the joint frame 70, and a frame reinforcing member 76 that is inserted into the hollow portion of the joint frame main body 71. With this configuration, the joint frame 70 can be reinforced by the frame reinforcing member 76. The door frame main body 71 is a flat, approximately square tube whose thickness direction is in the same direction as the door frame thickness direction, and is made up of a door frame wall portion that forms the door frame side end face, an opposing wall portion that faces the door frame 70 (door frame main body 71) of another door frame (outdoor door frame 40B) when closed, an opposite wall portion (the indoor side wall portion of the indoor side door frame 70A, the outdoor side wall portion of the outdoor side door frame 70B) that is arranged parallel to this opposing wall portion, and a groove bottom piece portion that defines the groove bottom of the plate receiving groove 72. The joint wall portion of the joint frame main body 71 is generally similar to the door end frame main body 61, and is provided with fastener insertion holes through which fasteners that secure the joint frame 70 to the upper frame 44 and the lower frame 50 are inserted, and an operation hole through which a jig that operates the position adjustment operation portion 58c is inserted, and caps are attached to cover these holes (see also Figure 4).

[0076] The opposing wall portions of the door frame main body 71 are flat surfaces perpendicular to the shoji thickness direction, and their surfaces (the exterior side of the indoor door frame 70A and the interior side of the outdoor door frame 70B) are flush with the surfaces of the door frame main body 61 (the exterior side of the indoor door frame 60A and the interior side of the outdoor door frame 60B). The opposite wall portion of the door frame main body 71 is flat and perpendicular to the thickness direction of the shoji screen, and its surface (the indoor side of the indoor door frame 70A and the outdoor side of the outdoor door frame 70B) is flush with the surface of the door frame main body 61 (the indoor side of the indoor door frame 60A and the outdoor side of the outdoor door frame 60B). The plate receiving groove 72 extends over the entire length of the hollow portion of the stile body 71 toward the door edge, receiving and holding the other end of the translucent plate 41, 41 in the left-right direction. Both sides of the groove width of the plate receiving groove 72 are defined by thin plate-like pieces extending from both edges of the groove bottom piece in the shoji thickness direction toward the door edge, and whose thickness direction is the same as the shoji thickness direction. The surfaces of these thin plate-like pieces facing outward in the shoji thickness direction are flush with the surfaces of the portions defining the hollow portion of the stile body 71 facing outward in the shoji thickness direction. The extending end faces of these thin plate-like pieces are flush with the joining-side end face of the adjacent shoji 40 when closed.

[0077] As described above, a recess is provided at the lower end of the joint frame body 71 to receive the rail portion 17 of the bottom frame 15 (see FIG. 3). In addition, an appropriate lower end cap or the like may be attached to the lower end of the joint frame body 71 to close the lower end opening of the joint frame body 71. In this case, the lower end cap may also be provided with a recess to receive the rail portion 17 of the bottom frame 15. The main frame 71 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. The stile reinforcing member 76 has an outer peripheral shape that roughly corresponds to the inner peripheral shape of the hollow portion of the joint stile body 71. This stile reinforcing member 76 is formed in a substantially square cylindrical shape. This stile reinforcing member 76 is provided so as to extend over substantially the entire length of the joint stile body 71. As described above, the length of this stile reinforcing member 76 may be smaller than the length of the joint stile body 71 so that the joint anti-vibration member 77, which is attached to the upper end of the joint stile body 71 and the lower end cap, which is attached to the lower end, can be accommodated within the joint stile body 71. As described above, this stile reinforcing member 76 may be made of metal such as aluminum or stainless steel, or may be an extrusion molded product with a uniform cross-sectional shape in the longitudinal direction.

[0078] As shown in Figures 10(a) and 10(b), the flat exposed portions 79 of the joint vibration-stopping member 77 are provided on both sides of the receiving groove 78 in the groove width direction so as to define both sides of the receiving groove 78 in the groove width direction. With this configuration, the rail portion 13 can be sandwiched between the flat exposed portions 79 on both sides of the groove width direction that define both sides of the receiving groove 78 in the groove width direction. This makes it possible to effectively suppress vibration of the upper end of the shoji screen 40 in the shoji screen thickness direction, compared to, for example, a configuration in which the downward-protruding rail is caught on upward protruding portions provided at spaced positions on both sides of the opening that accommodates the downward-protruding rail. Specifically, although not shown, the door stop vibration stop member 77 is provided below the flat exposed portion 79, similar to the door end vibration stop member 66 described above, and has an insertion portion that is inserted into the door stop stile main body 71. This insertion portion, similar to the above, is shaped so that it can be fitted into the hollow portion of the door stop stile main body 71. 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 door stop stile 70 to the upper frame 44 is inserted, or an insertion hole through which a fastener that fixes the door stop vibration stop member 77 to the door stop stile main body 71 is inserted.

[0079] The receiving groove 78 is open upward and extends across the entire left-right direction of the stopper member 77. This receiving groove 78 is aligned with the rail receiving groove 47 of the upper frame 44 in the shoji thickness direction and is connected to the rail receiving groove 47. The upper end of the stopper member body 71 is provided with a notched recess that receives the portion that defines the receiving groove 78 of the stopper member 77. The receiving groove 78 is defined by a groove bottom facing upward and groove side wall surfaces 78a, 78a on both sides in the groove width direction. As described above, the groove depth of the receiving groove 78 may be an appropriate dimension so that, when the shoji screen 40 is installed in a kendon shape, the rail portion 13 of the upper frame 11 can be received therein and the rail portion 17 of the lower frame 15 can be received in the rail receiving groove 53 at its lower end. In the illustrated example, the groove depth of the receiving groove 78 is set to the same dimension as the protruding dimension of the rail portion 13 of the upper frame 11, but this is not limited to this example.

[0080] The groove width dimension of the opening side of this receiving groove 78 is set to a dimension corresponding to the thickness dimension of the rail portion 13 of the upper frame 11, as described above. The groove-side wall surfaces 78a, 78a on both sides of the receiving groove 78 are generally similar to the exterior-side wall surface 67b of the receiving groove 67 described above, and are inclined so that the opening-side portions of the groove-side wall surfaces 78a, 78a are spaced apart toward the groove bottom. In other words, the opening-side portions of these groove-side wall surfaces 78a, 78a are inclined so that the groove width of the opening-side portions of the receiving groove 78 increases toward the groove bottom. The groove bottom portions of these groove-side wall surfaces 78a, 78a are parallel to each other and flat, perpendicular to the shoji screen thickness direction. In other words, the groove width of the groove bottom portions of the receiving groove 78 is uniform. Similarly to the above, these groove-side wall surfaces 78a, 78a may be appropriately shaped so as not to obstruct the insertion of the rail portion 13 of the upper frame 11 when the shoji screen 40 is installed at an angle in a staggered manner.

[0081] As shown in FIG. 10(c), the flat exposed portion 79 is provided so that its upper surface 79a is flush with the upper surface 45b of the upper frame 44. With this configuration, damage to the flat exposed portion 79 can be more effectively prevented than in a configuration in which the flat exposed portion 79 protrudes beyond the upper frame 44, and the shoji screen 40 can be more smoothly installed on the frame 10. The upper surface 79a of this flat exposed portion 79 is formed into a flat surface that is approximately horizontal over almost the entire surface. In the illustrated example, the upper surface 79a of the flat exposed portion 79 is formed flush with the upper surface of the groove seal portion 48 provided on the upper frame 44, but the present invention is not limited to this example. As shown in FIG. 3 , the flat exposed portion 79 is configured to be covered by the cover piece 14 of the upper frame 11 when the shoji screen 40 is properly installed in the frame 10 and viewed from one side in the thickness direction. With this configuration, if the dimension between the upper frame 11 and the lower frame 15 of the frame 10 increases due to aging or other reasons, causing an abnormality such as the shoji screen 40 dropping relative to the upper frame 11, the flat exposed portion 79 is exposed at the lower end of the cover piece 14, as shown in FIGS. 10( b) and 10(c), making the abnormality noticeable. In other words, the flat exposed portion 79 can function as an abnormality indicator. Even in this state, the lower end of the rail portion 13 is positioned lower than the lower end of the cover piece 14, preventing the rail portion 13 of the upper frame 11 from immediately coming out of the receiving groove 78.

[0082] Specifically, the flat exposed portion 79 is provided so as to cover the upper end surface of the joint frame body 71. This flat exposed portion 79 is provided so as to cover the upper end surface of the joint frame body 71 except for the upper end surface of the tip end portion in the extension direction of the thin plate-like piece portion that defines the plate receiving groove 72 in the joint frame body 71. The flat exposed portion 79 is generally plate-shaped and arranged with its thickness aligned vertically. The vertical dimension of the flat exposed portion 79 corresponds to the step between the upper end surface 71a of the stile body 71 and the upper side surface 45b of the upper frame 44. The vertical dimension of the flat exposed portion 79 may be 2 mm or more. Compared to a configuration in which the vertical dimension of the flat exposed portion 79 is too small, this configuration improves the visibility of the flat exposed portion 79 while ensuring engagement with the rail portion 13 of the upper frame 11 when an abnormality such as that described above occurs, making the abnormality noticeable, and effectively preventing damage to the flat exposed portion 79. The vertical dimension of the flat exposed portion 79 may be 4 mm or less. With this configuration, compared to a configuration in which the vertical dimension of the flat exposed portion 79 is too large, the flat exposed portion 79 is less likely to be exposed immediately when an abnormality such as that described above occurs, and it is possible to suppress a decrease in moldability due to an increase in the thickness of one portion when the joint vibration prevention member 77 is made of a resin molded product. The vertical dimension of this flat exposed portion 79 may preferably be 2.5 mm to 3.5 mm.

[0083] Furthermore, the dimension of the flat exposed portion 79 in the vertical direction may be smaller than the dimension from the lower end of the cover piece 14 to the lower end of the rail portion 13. With this configuration, even when the entire flat exposed portion 79 is exposed below the cover piece 14, the lower end of the rail portion 13 will be positioned within the receiving groove 78, making it possible to more effectively prevent the rail portion 13 of the upper frame 11 from immediately coming out of the receiving groove 78. At least the surface (indoor side) 79b of this flat exposed portion 79 facing the cover piece portion 14 is a different color from the surface of the door frame main body 71. This configuration allows for more effective recognition of the above-mentioned abnormality when it occurs. In FIG. 10(c), this indoor side 79b is schematically shown by cross-hatching. This indoor side 79b may be an abnormality indication color, such as red, that is difficult to adopt as the surface color of the door frame main body 71 but is easily adopted as an abnormality indication (warning display). The door frame vibration stopper 77 may be entirely molded in the abnormality indication color, or at least the indoor side 79b may be painted or otherwise painted the abnormality indication color. The door frame vibration stopper 77 may be, for example, a resin molded product with good sliding properties.

[0084] The flat exposed portion 79 is not limited to the above-described configuration and may have various other configurations. For example, a portion that hangs down so as to cover the upper end of the door frame main body 71 may be further provided on the indoor side of the flat exposed portion 79. Furthermore, the door stopper member 77 having such a flat exposed portion 79 may be provided at least on the indoor door stopper frame 70A of the indoor door stopper frame 40A, or on the outdoor door stopper frame 70B of the outdoor door stopper frame 40B. Furthermore, it may also be provided on the door stopper member 66. In this case, the length of the door stopper frame body 61 may be smaller than that shown in the figure to correspond to the vertical dimension of the flat exposed portion 79. In other words, the door stopper frame body 61 may be provided in a step below the upper frame 44 so that the flat exposed portion 79 can be provided at the step with the upper surface 45b of the upper frame 44.

[0085] As shown in Figures 1 to 4, the exterior door sash frame 70B of the exterior door sash 40B is provided with a crescent receiver 84 that receives a crescent 83 that is provided on the interior door sash frame 70A of the interior door sash frame 40A and that constitutes a crescent lock (sash lock) 80. With this configuration, the crescent 83 of the interior door sash frame 40A can be locked by engaging it with the crescent receiver 84 of the exterior door sash frame 40B. The interior door sash frame 70A of the interior door sash frame 40A is provided with a lock body 81 that has the crescent 83 and constitutes a locking device. This lock body 81 is provided with a base that is fixed to the door sash frame 70A's door-side end face and a lever 82 that is operated to rotate the crescent 83, which is held rotatably around an axis that extends in the left-right direction relative to the base. As shown in Figures 11(a) and 12(c), the crescent receiver 84 is generally plate-shaped with a thickness that is the same as the thickness of the shoji screen. This crescent receiver 84 is provided with an engaged portion 85 that engages with the crescent 83 that constitutes the engaging portion of the lock body 81. The engaged portion 85 is provided in the crescent receiver 84 in a bent-up shape. This crescent receiver 84 and lock body 81 are provided at appropriate height positions on the exterior and interior sills 70B and 70A. The engaged portion 85 of this crescent receiver 84 and the lock body 81 having the crescent 83 that engages therewith are not limited to the configuration shown in the figures, and various other configurations may be used.

[0086] The crescent receiver 84 is provided with a fixed piece 86 that is aligned with the indoor side of the outdoor door frame 70B (the indoor side of the opposing wall of the door frame main body 71) and is fixed to the outdoor door frame 70B by a fastener 9. With this configuration, the fastener 9 can fix the fixed piece 86 of the crescent receiver 84 to the outdoor door frame 70B. The outdoor section stile 70B is provided with a protruding piece 73 that protrudes toward the indoor section stile 70A and whose tip end surface in the protruding direction serves as a receiving portion 73a for the seal portion 75 provided on the indoor section stile 70A, and this protruding piece 73 has an insertion hole 73b through which a fixed piece 86 is inserted, which penetrates the base end portion of the protruding piece 73. With this configuration, the fixed piece 86 can be inserted into the insertion hole 73b that penetrates the base end portion of the protruding piece 73 and fixed to the outdoor section stile 70B. Furthermore, compared to a configuration in which, for example, a notch or the like is provided in the protruding piece portion to accept the fixed piece portion, no steps or gaps are formed on the protruding tip surface of the protruding piece portion 73, which serves as the receiving portion 73a of the sealing portion 75, so the sealing portion 75 of the indoor joint frame 70A can be stably abutted, improving the airtightness between the indoor joint frame 70A and the outdoor joint frame 70B.

[0087] The protrusion 73 is provided on one side edge of the exterior door frame 70B in the view direction (left and right direction), and the other side edge of the exterior door frame 70B is provided with a seal protrusion 74 that protrudes toward the interior door frame 70A and has a seal portion 75 on its tip end in the protruding direction that abuts against a receiving portion 73a provided on the interior door frame 70A. With this configuration, the seal portion 75 of the interior door frame 40A can be abutted against the receiving portion 73a of the exterior door frame 40B, and the seal portion 75 of the exterior door frame 40B can be abutted against the receiving portion 73a of the interior door frame 40A, further improving the airtightness between the interior door frame 70A and the exterior door frame 70B. The exterior shoji screen 40B has a receiving cover 87 whose ends on both sides in the facing direction are engaged with the protruding piece 73 and the sealing protruding piece 74, respectively, to cover the fixed piece 86. With this configuration, the fixed piece 86 of the crescent receiver 84, which is fixed to the exterior joining frame 70B by the fastener 9, can be covered by the receiving cover 87, improving the appearance.

[0088] Specifically, protruding pieces 73 are provided on the door-end edge of the opposing side of the door frame main body 71 of the indoor door frame 70A and the outdoor door frame 70B, which is located on one side of the door frame in the facing direction. These protruding pieces 73 are provided along approximately the entire length of the door frame main body 71. These protruding pieces 73 are provided at the extending tip of a thin plate-like piece that defines one side of the groove width direction of the board receiving groove 72, and are formed to protrude in the shoji thickness direction, which is the opposing direction, and are equipped with an extending piece at the protruding tip that extends toward the door frame end face. The surfaces of the extending pieces of these protruding pieces 73 facing the opposing side constitute the receiving parts 73a. The indoor and outdoor door frame 70A and outdoor door frame 70B each have a seal projection 74 on the edge of the door frame end surface, which is the other side of the facing side of the door frame main body 71. These seal projections 74 are provided over approximately the entire length of the door frame main body 71. The seal projections 74 are formed to project in the shoji thickness direction, which is the facing direction, and have an extension at the tip of the projection that extends toward the door edge. In other words, the extensions of the projections 73 of the door frame main body 71 and the extensions of the seal projections 74 are provided to extend in directions facing each other (facing directions).

[0089] The tip surface on which the seal portions 75, 75 of the seal projection portions 74, 74 of each joint frame body 71, 71 are provided and the receiving portions 73a, 73a of the projection portions 73, 73 are arranged to be on the same plane. The receiving portion 73a of the protruding piece 73 of the indoor door frame 70A and the tip surface of the sealing protruding piece 74 of the outdoor door frame 70B are positioned so that they face each other in the shoji thickness direction and are aligned in the facing direction when closed. The tip surface of the sealing protruding piece 74 of the indoor door frame 70A and the receiving portion 73a of the protruding piece 73 of the outdoor door frame 70B are positioned so that they face each other in the shoji thickness direction and are aligned in the facing direction when closed.

[0090] The seal portions 75 of each seal projection 74 are arranged to protrude from the leading end of the seal projection 74 in the shoji thickness direction. The illustrated example shows multiple seal portions 75 (two in the illustrated example) arranged at intervals in the front direction on each seal projection 74. These seal portions 75 are thin plates arranged so that their thickness direction is roughly in the front direction, and are arranged along substantially the entire length of the door frame body 71. The seal portion 75 on the door edge side may abut against the receiving portion 73a of the opposing projection 73, and the seal portion 75 on the door frame end side may abut against the door edge-side corner of the receiving portion 73a of the opposing projection 73. These seal portions 75 may be formed from soft resin, thermoplastic elastomer, rubber, etc., as described above. Furthermore, these sealing portions 75, 75 may be integrally molded with the joint frame main body 71, 71 by two-color molding (molding of different materials) or the like, or may be fixed to the joint frame main body 71, 71 by an appropriate adhesive or welding or the like.

[0091] The insertion hole 73b provided in the protruding piece 73 of the outdoor door frame 70B is elongated in the longitudinal direction of the door frame, which is the vertical direction. This insertion hole 73b is provided so that the fixed piece 86 of the crescent receiver 84 can abut against the indoor side of the opposing wall of the door frame main body 71. This insertion hole 73b may be formed so that the surface of its inner periphery facing the indoor side is flush with the indoor side of the opposing wall of the door frame main body 71. This insertion hole 73b may be provided closer to the base end than the portion of the protruding piece 73 where the extension piece is provided. The length dimension of this insertion hole 73b in the vertical direction and the width dimension in the shoji thickness direction are dimensions corresponding to the vertical dimension and thickness dimension of the fixed piece 86.

[0092] The exterior sill 70B is provided with a fastener 9 that secures the sill reinforcement member 76 to the sill body 71. As shown in FIGS. 12(a) and 12(b), this fastener 9 is provided in a location covered by a receiving cover 87. This configuration allows the fastener 9 that secures the sill reinforcement member 76 to the exterior sill 70B and the fastener 9 that secures the fixing piece 86 of the crescent receiver 84 to the exterior sill 70B to be located close to each other, improving workability when drilling holes for these fasteners 9 and fastening the fasteners 9. Furthermore, the fixing piece 86 of the crescent receiver 84 and the fastener 9 that secures the sill reinforcement member 76 to the exterior sill 70B can be covered by the receiving cover 87, improving appearance and suppressing heat conduction from the fastener 9, thereby improving insulation.

[0093] 11(a) and 12(a), the fixing piece portion 86 is provided with a head receiving portion 86a that receives the head 9a of the fastener 9 that fixes the stile reinforcement member 76 to the outdoor side joint frame 70B. With this configuration, it is not necessary to reduce the dimension of the fixing piece portion 86 along the facing direction or to increase the facing dimension of the outdoor side joint frame 70B or the dimension of the receiving cover 87 along the longitudinal direction of the joint frame so that the fixing piece portion 86 does not interfere with the head 9a of the fastener 9 that fixes the stile reinforcement member 76 to the outdoor side joint frame 70B. The head receiving portion 86a is provided in approximately the center in the up-down direction of the fixed piece 86. This head receiving portion 86a is formed in a notch shape that penetrates through the thickness direction of the tip end portion of the fixed piece 86 in the insertion direction into the insertion hole 73b and opens toward the tip end in the insertion direction. The head receiving portion 86a is not limited to such a shape that opens toward the tip end in the insertion direction, and may be a through hole or the like.

[0094] The fixed piece portion 86 is provided with a fastener insertion hole 86b through which a fastener 9 is inserted to fix the fixed piece portion 86 (crescent receiver 84) to the exterior door sill 70B. The illustrated example shows an example in which two fastener insertion holes 86b, 86b are provided in the fixed piece portion 86, positioned on both sides of the head receiving portion 86a in the vertical direction. Also shown is an example in which these fastener insertion holes 86b, 86b are elongated in the insertion direction. 11(a), the fixing piece 86 is provided with a marker 86c that serves as a guide when positioning the fixing piece 86 inserted into the insertion hole 73b relative to the exterior junction stile 70B in the facing direction. This configuration allows the fixing piece 86 to be fixed in an appropriate position relative to the exterior junction stile 70B. In the illustrated example, the markers 86c are linear (groove-shaped) formed on the interior side of the fixing piece 86, and are provided on both vertical sides of the fixing piece 86, but this is not a limitation. The fixing piece 86 may be positioned so that the markers 86c coincide with the tips of the extending pieces of the protruding piece 73.

[0095] As shown in Figures 11(b) and 12(c), the receiving cover 87 is a generally flat plate whose thickness is the same as the thickness of the shoji screen. This receiving cover 87 is generally rectangular when viewed in the thickness direction (when viewed from the front). The vertical dimension of this receiving cover 87 is greater than the vertical dimension of the fixing piece portion 86. Furthermore, the horizontal dimension of this receiving cover 87 corresponds to the dimension of the exterior door frame 70B along the front direction. The interior side surface 87a of the receiving cover 87 is formed as a curved surface that convexly extends toward the interior side of the room. This configuration allows the protruding dimensions of the protruding piece 73 and the sealing protruding piece 74 to be reduced to reduce the thickness of the exterior door frame 70B, and the receiving cover 87 protrudes slightly toward the interior side, reducing resistance when it comes into rubbing contact with the interior door frame 70A of the interior shoji screen 40A. The interior side surface 87a of the receiving cover 87 may be a curved surface that slopes toward the exterior side from the center of the receiving cover 87 in the view direction toward both exterior sides in the view direction. Instead of this curved surface, the interior side surface 87a of the receiving cover 87 may be a curved surface that slopes toward the exterior side from the center of the receiving cover 87 in the view direction toward both exterior sides in the view direction. In the illustrated example, the interior side surface 87a of the receiving cover 87 is a curved surface that slopes from the center of the receiving cover 87 when viewed from the front outward both in the front direction and in the longitudinal direction of the frame.

[0096] The receiving cover 87 is detachably attached to the outdoor-side door frame 70B. When the receiving cover 87 is attached to the outdoor-side door frame 70B, its indoor side surface 87a protrudes slightly indoors beyond the protruding piece portion 73 and the sealing protruding piece portion 74. A first locked portion 88 that is locked to the protruding piece portion 73 is provided at the end of the receiving cover 87 on the door leading side, which is one side in the view direction. A second locked portion 89 that is locked to the seal protruding piece portion 74 is provided at the end of the receiving cover 87 on the joining side end face, which is the other side in the view direction. The first locked portion 88 is fitted into a locking recess defined by the protruding piece 73. The first locked portion 88 is provided on each of both ends of the end of the receiving cover 87 on the door tip side in the longitudinal direction of the stile so that the fixed piece 86 can be received on the back side (outdoor side) of the receiving cover 87 (see Figure 11 (c)). In other words, the receiving cover 87 is configured so that the fixed piece 86 can be received between its first locked portions 88, 88. Furthermore, the first locked portions 88, 88 are locked into the locking recesses on both sides in the longitudinal direction of the stile of the fixed piece 86 fixed to the outdoor door frame 70B.

[0097] The second locked portion 89 is fitted into a locking recess defined by the seal protrusion 74. The second locked portion 89 is provided over the entire end portion on the joining side end face side of the receiving cover 87. Note that instead of this configuration, the second locked portion 89 may be configured to be provided on both ends in the longitudinal direction of the stile of the end portion on the joining side end face side of the receiving cover 87, similar to the first locked portion 88. As shown in Figure 11(c), the back surface of the receiving cover 87 has a concave curved surface corresponding to the above-described convex curved interior side surface 87a. The back surface of this receiving cover 87 has a recess 87b for receiving the head 9a of the fastener 9 that secures the fixing piece 86. This configuration effectively reduces the projection dimension of the receiving cover 87 toward the interior side. The illustrated example shows two recesses 87b, 87b corresponding to the two fastener insertion holes 86b, 86b provided in the fixing piece 86. Furthermore, notched recesses may be provided at both end edges of the back surface of this receiving cover 87 in the longitudinal direction of the stile, allowing for the insertion of an appropriate jig when removing the receiving cover 87 from the exterior joining stile 70B. The receiver cover 87 and the fixed piece portion 86 of the crescent receiver 84 covered thereby are not limited to the configuration described above, and may have various other configurations.

[0098] 2 and 3, the interior window device 1 is equipped with windstop plates 30, 30 attached to the upper frame 11 and the lower frame 15 so as to close the gaps between the ends of the longitudinal stiles of the joining frames 70, 70 of the shoji screens 40, 40 that are arranged so as to overlap in the shoji thickness direction when closed. With this configuration, the windstop plates 30, 30 can close the gaps between the ends of the joining frames 70, 70 in the longitudinal direction of the stiles and the upper frame 11 and the lower frame 15, improving airtightness. 13(a) and 13(b), at least one of the upper frame 11 and the lower frame 15 is provided with a positioning hole (19) for aligning the positioned portion (32) of the wind stop plate 30. With this configuration, the wind stop plate 30 can be easily attached by aligning the positioned portion (32) of the wind stop plate 30 with the positioning hole (19) of at least one of the upper frame 11 and the lower frame 15.

[0099] The positioning holes (19) are fastener holes 19 of fasteners 9 that secure at least one of the upper frame 11 and the lower frame 15. With this configuration, the fastener holes 19 of the fasteners 9 that secure at least one of the upper frame 11 and the lower frame 15 can function as positioning holes. These fastener holes (positioning holes) 19 may be provided in both the upper frame 11 and the lower frame 15, or may be provided only in the upper frame 11, but the following description will use the fastener holes 19 provided in the lower frame 15 as an example. Furthermore, the wind stop plates 30, 30 include an upper frame-side wind stop plate 30A attached to the upper frame 11 and a lower frame-side wind stop plate 30B attached to the lower frame 15, but the common configuration will be described below using the lower frame-side wind stop plate 30B as an example of the wind stop plate 30.

[0100] The fastener hole 19 is formed to pass through the fixing piece portion 16 of the lower frame 15. This fastener hole 19 is provided so as to be located between the indoor rail portion 17A and the outdoor rail portion 17B of the lower frame 15. This fastener hole 19 may be provided so as to be located between the facing sills 70, 70 in the closed state. Furthermore, this fastener hole 19 may be provided in approximately the center of the lower frame 15 in the longitudinal direction. Fastener hole 19 is a circular hole. In the illustrated example, fastener hole 19 is a perfectly circular hole. The diameter of fastener hole 19 may be any diameter that allows the shank of fastener 9 to pass through and is smaller than the outer diameter of the head.

[0101] The positioned portion (32) of the wind stop plate 30 is a positioned hole 32 that penetrates the wind stop plate 30. With this configuration, the positioned hole 32 can be aligned with the fastener hole 19 to attach the wind stop plate 30. The diameter of the positioned hole 32 is equal to or larger than the diameter of the fastener hole 19. With this configuration, the windbreak plate 30 can be easily positioned and attached so that the fastener hole 19 is positioned within the positioned hole 32. The positioning holes 32 and the fastener holes 19 have the same shape. With this configuration, it becomes easy to align the windshield plate 30 by overlapping the holes so that their center lines are aligned. The positioning hole 32 is provided in the center of the wind stop plate 30 in a plan view, and fin portions 33 extending toward the end of the joint frame 70 are provided in point-symmetric positions on both sides of the positioning hole 32 in the wind stop plate 30 in the frame longitudinal direction. With this configuration, the wind stop plate 30 can be attached on either side in the frame longitudinal direction, further improving the workability when attaching the wind stop plate 30.

[0102] Specifically, the wind stop plate 30 is generally plate-shaped and arranged so that its thickness is in the vertical direction, and includes a base plate portion 31 that is aligned with the fixing piece portion 16 of the lower frame 15. This base plate portion 31 has a rectangular shape that is elongated in the longitudinal direction of the lower frame 15 when viewed in the thickness direction (in a plan view). The width dimension of this base plate portion 31 along the frame projection direction corresponds to the dimension between the indoor rail portion 17A and the outdoor rail portion 17B. The length dimension of this base plate portion 31 along the frame longitudinal direction may also correspond to the projection dimension of the door frame stile 70. Positioned hole 32 is provided so as to penetrate the center of base plate portion 31 in a plan view. The diameter of positioned hole 32 may be larger than the diameter of fastener hole 19, and may also be larger than the outer diameter of the head of fastener 9. With this configuration, the head of fastener 9 can be accommodated within positioned hole 32, making it less likely that the head of fastener 9 will interfere with fin portion 33 or shoji screen 40. The wind stop plate 30 is provided with a plurality of fin portions 33 spaced apart in the frame longitudinal direction. These fin portions 33 are provided on both sides of the positioned hole 32 in the frame longitudinal direction. Furthermore, a plurality of fin portions 33 are provided on each side of the positioned hole 32 in the frame longitudinal direction at intervals in the frame longitudinal direction. In the illustrated example, four fin portions 33 are provided on each side of the positioned hole 32 in the frame longitudinal direction, but the present invention is not limited to this example.

[0103] These fin portions 33 have the same configuration, are provided so as to protrude from the base portion 31 toward the joining frame 70, and are thin plates arranged so that their thickness direction is the longitudinal direction of the frame. In the illustrated example, the fin portion 33 is divided into three in the frame projection direction, and the protruding dimension of the fin portion in the center in the frame projection direction is larger than the protruding dimension of the fin portions on both sides in the frame projection direction. These fin portions 33 abut against the opposing portions of the end faces (lower end faces) of the joining frames 70, 70 that face each other in the shoji thickness direction, and also block the gap between them to reduce the intrusion of wind and the like (see Figure 3). As shown in Figure 3, the protruding dimension of the fin portion 33 of the upper frame side wind stopper plate 30A is larger than the protruding dimension of the fin portion 33 of the lower frame side wind stopper plate 30B, but the other configurations are approximately the same as those of the lower frame side wind stopper plate 30B. As described above, these wind stop plates 30, 30 may be made of soft resin, thermoplastic elastomer, rubber, etc. Furthermore, these wind stop plates 30, 30 may be fixed to the fixing pieces 12, 16 of the upper frame 11 and the lower frame 15 with an adhesive, glue, etc. In the above example, the positioned portion of the wind stopper plate 30 is shown as a positioned hole 32 having the same shape as the fastener hole 19 but a larger diameter, but this is not limited to this configuration and may also be, for example, a notched recess or the like. Furthermore, the windbreak plates 30, 30 are not limited to the configuration described above, and may have various other configurations.

[0104] 13(b), a label (sticker) 36 containing at least product information 37 is attached to the frame 10. In the illustrated example, the label 36 is attached to the fixing piece 16 of the lower frame 15, but similar labels are also attached to the upper frame 11 and the left and right vertical frames 20, 20. This label 36 is provided with installation direction instruction information 38 indicating the installation direction (indoors or outdoors) in addition to product information 37. By providing the product information 37 and the installation direction instruction information 38 on the same label 36 in this way, the effort and waste required to peel them off after installation can be reduced compared to a configuration in which these information are provided on separate labels and attached separately. In the illustrated example, a label 36 is provided with product information 37, such as a model number and a two-dimensional code (QR code (registered trademark)) that can be read by a mobile information terminal or the like. Also, the label 36 is provided with installation direction instruction information 38, such as text indicating the indoor side and an arrow pointing toward the indoor side. Furthermore, the label 36 is provided with component information 39 indicating the object to which the label 36 is attached. In the illustrated example, the label 36 is provided with the text notation of the lower frame as the component information 39, but the labels attached to the upper frame 11 and the left and right vertical frames 20, 20 will be provided with their respective names.

[0105] 2, the frame body 10 is provided with stoppers 34, 35 against which the joining frames 70, 70 of the fully opened shoji screens 40, 40 abut. In the example shown in the figure, only the stoppers 34, 35 on the lower frame 15 side are illustrated, but similar stoppers are also provided on the upper frame 11 side. Below, the stoppers 34, 35 on the lower frame 15 side will be explained, but the configuration of the stoppers 34, 35 on the upper frame 11 side can be understood as being upside down. These stoppers 34, 35 are symmetrical with their respective center lines in the left-right direction as axes of symmetry. This configuration makes them applicable not only to a configuration in which the indoor shoji screen 40A and the outdoor shoji screen 40B are arranged in a right-front (right-handed) orientation as shown in the figure, but also to a configuration in which they are arranged in a left-front (left-handed) orientation. In other words, these stoppers 34, 35 can be used for both left and right doors.

[0106] Specifically, the outdoor stopper 35, which the outdoor door frame 70B of the outdoor shoji screen 40B abuts against, is fixed to one end of the lower frame 15 in the longitudinal direction. As shown in Figures 13(c) to 13(e), the outdoor stopper 35 has a generally rectangular parallelepiped shape, with its lower surface facing the fixing piece 16 of the lower frame 15 (the fixing target) and its upper surface facing the opposite side being substantially horizontal and flat. The upper and lower surfaces of the outdoor stopper 35 are substantially similar in shape, and the area of ​​the lower surface is smaller than the area of ​​the upper surface. In other words, the outdoor stopper 35 is tapered from the upper end to the lower end. This configuration allows the draft angle used when molding the outdoor stopper 35 to be utilized in the product shape. Of the four peripheral sides of this outdoor stopper 35, the outdoor side 35a that abuts or is close to the indoor side of the outdoor rail portion 17B of the bottom frame 15 is formed to be slightly inclined toward the indoor side from the top end to the bottom end. The lower end of this outdoor side 35a is provided with an inclined surface 35b that has a slightly larger inclination angle than the upper part. This inclined surface 35b may be formed so as not to interfere with the concavely curved part of the inside corner between the outdoor rail portion 17B and the fixing piece 16.

[0107] The side surfaces 35d, 35d on both the left and right sides of the four peripheral side surfaces of the exterior stopper 35 are also formed to be inclined so as to become slightly closer to each other as they move from the upper end to the lower end. Similarly, the indoor side surface 35c facing the indoor side is formed to be slightly inclined toward the outdoor side from the top to the bottom. Furthermore, C-chamfered inclined surfaces 35e, 35e are provided at the corners between the indoor side surface 35c and the side surfaces 35d, 35d on both sides. These inclined surfaces 35e, 35e may be formed so that one of them does not interfere with the adjacent second seal portion 26, as shown in FIG. 5.

[0108] The vertical dimension of this outdoor stopper 35 may be set to an appropriate dimension so that the end (lower end) of the outdoor door frame 70B of the outdoor door screen 40B can stably abut against it and so as to prevent damage, etc. In the illustrated example, the vertical dimension of the outdoor stopper 35 is set to be larger than the protruding dimension of the outdoor rail portion 17B, but this is not limited to this example. The dimension of the outdoor stopper 35 along the frame projection direction may also be an appropriate dimension from the same viewpoint, etc. In the illustrated example, the dimension of the outdoor stopper 35 along the frame projection direction is slightly smaller than the dimension along the frame projection direction from the outdoor rail portion 17B to the first seal portion 25, but this is not limited to this example. The dimension of this outdoor stopper 35 in the left-right direction may be an appropriate dimension so that the outdoor joint frame 70B of the outdoor shoji screen 40B in the fully open state does not come into contact with the outdoor protrusion portion 23 of the vertical frame 20, and also from the perspective of increasing the effective opening width of the outdoor shoji screen 40B in the fully open state.

[0109] The indoor stopper 34, which the indoor door frame 70A of the indoor door shoji 40A abuts against, is fixed to the other longitudinal end of the lower frame 15, as shown in FIG. Similar to the outdoor stopper 35, the indoor stopper 34 has a generally rectangular parallelepiped shape with a flat, horizontal lower surface facing the fixing piece 16 of the lower frame 15, which is the fixing target, and an upper surface facing the opposite side. Also, similar to the above, the indoor stopper 34 has similar upper and lower surfaces, and the area of ​​the lower surface is smaller than the area of ​​the upper surface. This indoor stopper 34 is fixed to the fixing piece 16 of the lower frame 15 so as to straddle the indoor rail portion 17A. An appropriate receiving groove for receiving the indoor rail portion 17A is provided on the underside of this indoor stopper 34. The four peripheral side surfaces of this indoor stopper 34 are also formed to be slightly inclined, similar to the outdoor stopper 35 described above, and may also be formed so as not to interfere with the second seal portion 26.

[0110] The dimensions of this interior stopper 34 along the vertical direction and along the frame projection direction may also be set to appropriate dimensions from the same viewpoint as above. The dimension of this indoor stopper 34 along the left-right direction may be set appropriately so that the lock body 81 of the indoor shoji screen 40A in the fully open state does not come into contact with the indoor protrusion 22 of the vertical frame 20, and from the perspective of increasing the effective opening width of the indoor shoji screen 40A in the fully open state. The dimension of this indoor stopper 34 along the left-right direction may be set appropriately so that the lever 82 of the lock body 81 that is operated to the unlock side and protrudes into the room does not come into contact with the indoor protrusion 22 of the vertical frame 20. The stoppers 34, 35 may be molded from a suitable resin. The stoppers 34, 35 may also be fixed to the lower frame 15 by suitable fasteners or the like attached from the rear surface of the lower frame 15. Furthermore, the stoppers 34, 35 are not limited to the configurations described above, and may have various other configurations.

[0111] Next, a modified example of the inner window device will be described with reference to FIG. In the following modified examples, differences from the previously described example will be mainly described, and explanations of similar configurations will be omitted or briefly explained. In addition, in the following modified examples, explanations of the same operational effects as those of the previously described example will be omitted or briefly explained.

[0112] The interior window device 1A according to a modified example shown in Figure 14 is configured such that a handle member 90 is attached to the door frame 60 of the shoji screen 40. Also shown is an example in which handle members 90, 90 are attached to each side of the door frame 60 in the shoji screen thickness direction. In the example shown, only the indoor door frame 60A of the indoor door frame 40A is illustrated, but similar handle members 90, 90 may also be attached to the outdoor door frame 60B of the outdoor door frame 40B. These handle members 90, 90 are provided with handle recesses 91, 91 whose depth is greater than the step of the recessed step 63 and the depth of the handle recess 64. These handle members 90, 90 are provided so as to protrude in the shoji thickness direction beyond each surface of the door end frame 60 in the shoji thickness direction. These handle members 90, 90 are fixed by fitting them into mounting openings 63A, 64A formed by cutting out the portion constituting the step bottom surface 63a of the recessed step portion 63 at the vertical midpoint of the door stile body 61 and the recess partition portion 64a that defines the handle recess 64. Furthermore, these handle members 90, 90 are fixed by inserting portions of each into groove-like portions provided on both sides of the stile reinforcement member 65 in the shoji thickness direction through the mounting openings 63A, 64A. These handle members 90, 90 may be fixed to the door stile 60 with appropriate fasteners, adhesives, pressure-sensitive adhesives, etc.

[0113] The handle member 90 (outdoor handle member 90B) attached to the outside of the indoor door frame 60A of the indoor door shoji 40A and the handle member (indoor handle member) attached to the indoor side of the outdoor door frame 60B of the outdoor door shoji 40B (not shown) are positioned so as not to interfere with the seal support piece portion 24 or its first seal portion 25 when in the closed position. Furthermore, the exterior handle member 90B of the interior shoji screen 40A and the interior handle member of the exterior shoji screen 40B are arranged so as not to come into contact with the seal projection 74 provided on the door frame 70 of the other shoji screen when they are slid past each other. Preferably, the exterior handle member 90B of the interior shoji screen 40A and the interior handle member of the exterior shoji screen 40B are formed so as not to come into excessive or slight contact with the seal portion 75 provided on the seal projection 74, and more preferably so as not to come into contact with the seal portion 75. In other words, the exterior handle member 90B of the interior shoji screen 40A and the interior handle member of the exterior shoji screen 40B may be arranged so that their protruding tip surfaces are flush with the receiving portion 73a of the projection portion 73 of the shoji screen to which they are attached, or are closer to the center of the shoji screen thickness direction than the receiving portion 73a.

[0114] The handle member 90 (indoor handle member 90A) attached to the indoor side of the indoor side door frame 60A of the indoor side shoji screen 40A and the handle member (outdoor handle member) attached to the outdoor side of the outdoor side door frame 60B of the outdoor side shoji screen 40B (not shown) are arranged so as not to interfere with the protrusion portion (indoor side protrusion portion 22 or outdoor side protrusion portion 23) that partitions the storage section 29 in the closed position. These handrail members 90, 90 may be appropriate resin molded products. Furthermore, the handrail members 90, 90 are not limited to the above-described configuration, and may have various other configurations. Such grab members 90, 90 may be provided when the interior window device 1A is applied to a window that tends to require a large load for operation, particularly when opening and closing, such as a bay window. When the interior window device 1A is applied to such a bay window, the interior door frame 70A of the interior shoji screen 40A may be provided with a protruding portion that protrudes toward the interior so as to be able to be grabbed.

[0115] In the above example, the interior window device 1, 1A is provided with two sliding shoji screens 40, 40, but it may also be configured with three or more shoji screens, or one of the multiple shoji screens 40 may form a fixed window that cannot slide. In addition, in the above example, the window device (1, 1A) equipped with the shoji screen 40 (40B) according to this embodiment is shown as an inner window device arranged on the indoor side of the outer window 3, but instead of forming a double-glazed window with such an outer window 3, the window device (1, 1A) may be installed as an outer window. The configuration of each member and each part of the shoji screen 40 (40B) according to this embodiment and the interior window device (window device) 1, 1A equipped with it is merely an example, and various other modifications are possible.

[0116] <Additional Notes> The above description of the embodiments discloses the following techniques. <Technology 1> A shoji screen having a crescent receiver attached to the exterior sash frame that receives a crescent that constitutes a crescent lock and is attached to the interior sash frame on the interior side, wherein the crescent receiver is provided with a fixed piece portion that is aligned with the interior side of the exterior sash frame and fixed to the exterior sash frame with a fastener, and the exterior sash frame is provided with a protruding piece portion that protrudes toward the interior sash frame and whose tip surface in the protruding direction serves as a receiving part for a seal portion provided on the interior sash frame, and the protruding piece portion has an insertion hole through which the fixed piece portion is inserted, which penetrates the base end portion of the protruding piece portion. <Technology 2> The protruding piece is provided on one side edge of the exterior sill in the facing direction, and a sealing protruding piece is provided on the other side edge of the exterior sill in the facing direction, which protrudes toward the interior sill and has a sealing part on its tip end in the protruding direction that abuts on a receiving part provided on the interior sill, and the shoji screen described in Technology 1 has receiving covers that are engaged with the protruding piece and the sealing protruding piece at both ends in the facing direction, respectively, and cover the fixed piece. <Technology 3> The shoji screen according to Art 2, wherein the interior side of the receiving cover is formed into a curved surface that is convex toward the interior side of the room. <Technology 4> A shoji screen as described in Technology 2 or Technology 3, which is provided with a frame reinforcement member that is inserted into the outdoor sash frame, which is hollow and tubular, and a fastener that fixes the frame reinforcement member to the outdoor sash frame is provided in a portion of the outdoor sash frame that is covered by the receiving cover. <Technology 5> A shoji screen as described in Technology 4, in which the fixing piece portion is provided with a head receiving portion that receives the head of a fastener that fixes the stile reinforcement member to the outdoor joining stile. <Technology 6> A window device comprising: a shoji screen as described in any one of Techniques 1 to 5; an indoor shoji screen having a crescent provided on an indoor door frame that forms a crescent lock together with a crescent receiver provided on the shoji screen; and a frame body to which the shoji screen and the indoor shoji screen are attached. [Explanation of symbols]

[0117] 1,1A Inner window device (window device) 10 Frame 40A Indoor Shoji Screen 40B Outdoor Shoji (Shoji) 70A Indoor side frame 70B Outdoor side frame 73 Projection part 73a Receiving part 73b Insertion hole 74 Seal protrusion 75 Seal part 76 Frame reinforcement member 80 Crescent Tablets 83 Crescent 84 Crescent receiver 86 Fixed piece 86a Head receiving part 87 Receiving cover 87a Interior side 9 Fasteners 9a head

Claims

1. A shoji screen in which a crescent receiver that receives a crescent that constitutes a crescent lock is provided on the indoor door frame of the indoor shoji screen and is provided on the outdoor door frame, The crescent receiver is provided with a fixing piece portion that is aligned along the indoor side surface of the outdoor door frame and fixed to the outdoor door frame by a fixing device, A shoji screen characterized in that the exterior sill is provided with a protruding piece that protrudes toward the interior sill and whose tip end surface in the protruding direction serves as a receiving part for the seal part provided on the interior sill, and the protruding piece has an insertion hole through which the fixing piece is inserted, which penetrates the base end part of the protruding piece.

2. In claim 1, The protruding piece is provided on one side edge of the exterior door frame in the facing direction, and the other side edge of the exterior door frame in the facing direction is provided with a sealing protruding piece that protrudes toward the interior door frame and has a sealing portion on its protruding tip end that abuts on a receiving portion provided on the interior door frame, A shoji screen characterized in that each end on both sides in the viewing direction is engaged with the protruding piece portion and the sealing protruding piece portion, respectively, and is provided with a receiving cover that covers the fixed piece portion.

3. In claim 2, A shoji screen characterized in that the indoor side of the receiving cover is formed into a curved surface that is convex toward the inside of the room.

4. In claim 2, The door frame is provided with a hollow cylindrical frame reinforcing member inserted into the outdoor door frame. A shoji screen characterized in that a fastener for fixing the stile reinforcement member to the outdoor stile is provided in a portion of the outdoor stile that is covered by the receiving cover.

5. In claim 4, A shoji screen characterized in that the fixing piece portion is provided with a head receiving portion that receives the head of a fastener that fixes the stile reinforcement member to the outdoor joining stile.

6. A window device characterized by comprising: a shoji screen according to any one of claims 1 to 5; an indoor shoji screen having a crescent provided on an indoor door frame that forms a crescent lock together with a crescent receiver provided on the shoji screen; and a frame body to which the shoji screen and the indoor shoji screen are attached.

Images