Fitting

Abstract

To provide a fitting configured in such a manner of improving the workability of hanging a sash and reducing the cost.SOLUTION: A fitting, which includes a frame body and a sash having a stile and supported by the frame body for rotation, the fitting including: a circular arc-shaped rotating shaft portion provided on the stile and having a partially open inner circumferential space, and a shaft support portion provided on the frame body, inserted into the inner circumferential space, and rotatably supporting the rotating shaft portion, the shaft support portion having a protruding plate portion protruding from a depth surface of the frame body and a support plate portion being bent from the protruding plate portion and being disposed in the inner circumferential space so that the inner circumferential surface of the rotating shaft portion can slide, the support plate portion having a first recess formed on one surface thereof and a second recess formed on the other surface thereof, which is the reverse surface of the first surface.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a fitting in which a shoji screen is rotatably supported by a frame. [Background technology]

[0002] As fittings that constitute windows of buildings such as houses and stores, there are sliding windows (top-hung windows) that have a horizontal rotation axis and vertical sliding windows (casement windows) that have a vertical rotation axis. For example, Patent Document 1 discloses a top-hung fitting with a horizontal rotation axis at the top. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7026551 Summary of the Invention [Problem to be solved by the invention]

[0004] The fitting in Patent Document 1 has a structure in which a J-shaped pivot shaft part provided on the upper frame of a shoji screen is rotatably supported by a C-shaped shaft support part provided on the upper frame. In this structure, a fall-stopper is attached to the upper frame. The fall-stopper prevents the shoji screen from falling off by sandwiching the shaft support part between the fall-stopper and the pivot shaft part.

[0005] However, the shoji screen cannot be hung on the upper frame when the anti-slip member is attached. Therefore, the work of hanging the shoji screen must be performed by removing the anti-slip member, tilting the screen, and then hanging the screen on the upper frame while fixing the anti-slip member in a predetermined position. Therefore, with this configuration, the work of hanging the shoji screen is complicated and the parts cost of the anti-slip member is also required.

[0006] The present invention has been made in consideration of the problems with the prior art described above, and aims to provide a fixture that improves the workability of hanging shoji screens while reducing costs. [Means for solving the problem]

[0007] A fitting according to one embodiment of the present invention is a fitting comprising a frame body, and a screen having a frame body and supported rotatably relative to the frame body, the fitting comprising: an arc-shaped pivot shaft portion provided on the frame body and having an inner space that is partially open; and an axis support portion provided on the frame body, inserted into the inner space and rotatably supporting the pivot shaft portion, the axis support portion having a protruding plate portion protruding from the visible surface of the frame body, and a support plate portion bent from the protruding plate portion, disposed in the inner space and against which the inner surface of the pivot shaft portion can slide, the support plate portion having a first recess formed on one side and a second recess formed on the other side which is the reverse side of the first side. Effect of the Invention

[0008] According to the above-described aspect of the present invention, the workability of hanging a shoji screen can be improved and the cost can be reduced. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a fitting according to a first embodiment. [Diagram 2] FIG. 2 is a vertical cross-sectional view of the fitting shown in FIG. [Diagram 3] FIG. 2 is a cross-sectional view of the fitting shown in FIG. 1. [Figure 4] An enlarged view of the upper frame and upper rail shown in Figure 2. [Figure 5A] 11A and 11B are vertical cross-sectional views showing an assembly operation of the hinge portion. [Figure 5B] 5B is a diagram showing a state in which the shoji screen is lowered from the state shown in FIG. 5A. [Figure 5C] 5C is a diagram showing a state in which the sash has been rotated in the closing direction from the state shown in FIG. 5B. [Figure 5D] 5C shows a state in which the screen is in a fully closed position. FIG. [Figure 5E] 5D and 5C are diagrams showing the state in which the shoji screen has been rotated in the opening direction. [Figure 5F] 5B is a diagram showing the state in which the shoji screen has been moved from the state shown in FIG. 5E to the fully open position. [Figure 6] 4 is an enlarged perspective view of a cutout portion provided at an end portion of a shaft support portion and its surrounding area. FIG. [Figure 7] This is a schematic diagram of a fixture with a structure to prevent lateral movement, viewed from the outside of the room. [Figure 8] FIG. 8 is an enlarged cross-sectional view of a portion of the fitting shown in FIG. 7. [Figure 9] FIG. 8 is an enlarged vertical cross-sectional view of a portion of the fitting shown in FIG. 7. [Figure 10] 13 is a perspective view of an upper frame with a spacer attached to the end of the shaft support portion. FIG. [Figure 11] FIG. 11 is a schematic diagram of a fitting having a lateral shift prevention structure using a spacer as shown in FIG. 10, viewed from the outside of the room. [Figure 12] FIG. 12 is an enlarged cross-sectional view of a portion of the fitting shown in FIG. [Figure 13] 13 is an enlarged longitudinal sectional view of a hinge portion including a rotation shaft portion according to a modified example and its surrounding area. FIG. [Figure 14] 14 is a vertical cross-sectional view showing an assembly operation of the hinge portion shown in FIG. 13. [Figure 15] FIG. 11 is a perspective view of a fitting according to a second embodiment. [Figure 16] FIG. 16 is a cross-sectional view of the fitting shown in FIG. [Figure 17] FIG. 16 is an enlarged perspective view of the vertical and lower frames of the fitting shown in FIG. 15. [Figure 18] FIG. 16 is a schematic diagram of the fitting shown in FIG. 15 as viewed from the inside of the room. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] BEST MODE FOR CARRYING OUT THE DISCLOSURE Hereinafter, preferred embodiments of the fitting according to the present invention will be described in detail with reference to the accompanying drawings.

[0011] As shown in Figures 1 to 3, a fitting 10 according to a first embodiment of the present invention comprises a frame 12 fixed to an opening in a building framework, and a paper screen 14 attached to an opening 13 within the frame of the frame 12 so as to be able to open and close. The paper screen 14 is rotatably connected to the frame 12 using a hinge portion 16. The fitting 10 is a sliding window (top-hung window) in which the paper screen 14 can be opened to the outside of the room. The paper screen 14 may also be one that can be opened to the inside of the room.

[0012] The frame body 12 is formed by framing an upper frame 12a, a lower frame 12b, and left and right vertical frames 12c, 12d on all four sides to form a rectangular inner frame opening 13. Each of the frames 12a to 12d is an extrusion shape made of a metal material such as an aluminum alloy or a resin material such as polyvinyl chloride (PVC). Each of the frames 12a to 12d may be a composite structure in which a resin shape is attached to the indoor side of a metal shape. The frame body 12 is fixed to the building framework using fasteners such as nails and screws.

[0013] In this application, the "visible direction" refers to the indoor / outdoor direction of the fitting 10, that is, the direction from the indoor side (INSIDE) to the outdoor side (OUTSIDE) or the opposite direction (the direction indicated by the arrow Z in the figure), and the "visible surface" refers to a surface extending along the visible direction. The "visible direction" refers to a direction perpendicular to the visible direction, and in the case of a vertical frame 12c that is long in the vertical direction, it refers to the left-right direction perpendicular to the longitudinal direction (the direction indicated by the arrow X in the figure), and in the case of an upper frame 12a that is long in the horizontal direction, it refers to the up-down direction perpendicular to the longitudinal direction (the direction indicated by the arrow Y in the figure). The "visible surface" refers to a surface along the visible direction. The "inside of the frame" refers to the inner part of the frame body 12, which is a frame-shaped member. The "outside of the frame" refers to the outer part of the frame body 12, which is a frame-shaped member.

[0014] As shown in Fig. 2, the upper frame 12a has a door stop piece 18 and a shaft support portion 20 that protrude from the inner surface 17 of the frame toward the inside of the frame. The door stop piece 18 is a plate piece that receives the shoji screen 14 in the fully closed position. A pocket is provided at the tip of the door stop piece 18 into which a hinge material 22 is attached. Door stop pieces 18 are also provided on the other frames 12b to 12d (see Figs. 2 and 3). The shaft support portion 20 constitutes the hinge portion 16, which will be described in detail later.

[0015] Reference numeral 23 in Fig. 2 denotes a weatherstripping material attached to the outside edge of the visible surface 17. The weatherstripping material 23 comes into contact with the upper surface of the opening and closing shoji screen 14, and drains rainwater that accumulates on the upper surface to the outside. Reference numeral 24 in Fig. 2 denotes a screw hole for screwing in the screw that fixes the vertical frames 12c, 12d to the upper frame 12a.

[0016] As shown in Fig. 2, the lower frame 12b is substantially the same as the upper frame 12a except for the shaft support portion 20 and the tension material 23. As shown in Fig. 3, the vertical frames 12c and 12d are substantially the same as the upper frame 12a except for the shaft support portion 20, the tension material 23, and the screw holes 24.

[0017] As shown in Figures 2 and 3, the shoji screen 14 is configured with a frame 26 holding a face material 28. The face material 28 is, for example, a glass plate. The face material 28 may be a laminated glass made by stacking multiple glass plates with spacers in between. The face material 28 is omitted in Figure 1, and the same is true for Figure 15.

[0018] The frame 26 is made up of an upper frame 26a, a lower frame 26b, and vertical frames 26c and 26d assembled on all four sides to hold the panel 28. Each of the frames 26a to 26d is an extrusion made of a metal material such as an aluminum alloy or a resin material such as polyvinyl chloride (PVC). Each of the frames 26a to 26d may be a composite structure in which a resin material is attached to the indoor side of a metal material.

[0019] As shown in Fig. 2, the upper frame 26a has a pivot shaft 30 and a sight piece 31 provided on a visible surface 29 on the outside of the frame. The sight piece 31 protrudes from the exterior end of the visible surface 29 to the outside of the frame. The pivot shaft 30 is formed in a portion including the corner of the visible surface 29 and the sight piece 31. The pivot shaft 30, together with the shaft support portion 20 on the frame body 12 side, constitutes the hinge portion 16, which will be described in detail later.

[0020] Upper frame 26a has a spot piece 34 and a ridge 35 that protrude from the inner face 32 of the frame toward the inside of the frame. Spot piece 34 is provided at the outer end of face 32, and supports the outer surface of panel 28 via gasket 36. Ridge 35 is attached to the inner end of face 32, and supports the inner surface of panel 28 via gasket 36.

[0021] As shown in Fig. 2, the lower frame 26b is essentially the same as the upper frame 26a, except for the pivot shaft 30. As shown in Fig. 3, the vertical frames 26c and 26d are essentially the same as the upper frame 26a, except for the pivot shaft 30. The end pieces 31 of the vertical frames 26c and 26d have tension material 37 attached to their tips.

[0022] The upper frame 26a of the shoji screen 14 is connected to the upper frame 12a via the hinge 16. This allows the shoji screen 14 to rotate between a fully closed position in which it closes the opening 13 within the frame, and an open position in which the lower frame 26b moves to the outside of the room. Reference numeral 38 in Fig. 2 denotes a cremone handle attached to the interior surface of the lower frame 26b.

[0023] Next, a specific example of the configuration of the hinge portion 16 will be described.

[0024] As shown in Figures 2 and 4, the hinge portion 16 has an axis support portion 20 provided on the upper frame 12a of the frame body 12, and a rotating shaft portion 30 provided on the upper frame 26a of the frame body 26. The hinge portion 16 is configured such that the rotating shaft portion 30 is rotatably supported by the axis support portion 20. Since the hinge portion 16 is configured by connecting shaped members together, it can also be called a shaped member hinge. The door and window fitting 10 may have the axis support portion 20 provided on the lower frame 12b and the rotating shaft portion 30 provided on the lower frame 26b.

[0025] First, the shaft support portion 20 is composed of a protruding plate portion 40 and a support plate portion 41. The cross-sectional shape of the shaft support portion 20 is substantially J-shaped or substantially W-shaped. The shaft support portion 20 extends over the entire length of the upper frame 12a, which is an extruded member.

[0026] The protruding plate portion 40 has a first portion 40a and a second portion 40b. The first portion 40a is a straight portion that protrudes from near the exterior end of the visible surface 17 of the upper frame 12a toward the inside of the frame. The second portion 40b is a portion that bends from the tip of the first portion 40a and extends toward the exterior. As a result, the cross-sectional shape of the protruding plate portion 40 is generally L-shaped overall.

[0027] The support plate portion 41 has a first portion 41a and a second portion 41b. The first portion 41a is a portion that gradually bends obliquely from the outdoor end of the second portion 40b of the protruding plate portion 40 toward the inside of the frame toward the outdoor side. The second portion 41b is a portion that gradually bends obliquely from the tip of the first portion 41a toward the inside of the frame toward the outdoor side. The angle between the portions 41a and 41b is, for example, a right angle or slightly smaller than a right angle.

[0028] The second portion 41b has a jaw portion 41c at its base end and a claw portion 41d at its tip end. The jaw portion 41c is a portion that bulges out a surface (one face) 42 on one side of the second portion 41b. The surface 42 is a face that faces outward (downward) in the bending direction from the first portion 41a to the second portion 41b. The claw portion 41d is a portion that bulges out a surface (other face) 43 on the other side of the second portion 41b. The surface 43 is a face that faces inward (upward) in the bending direction from the first portion 41a to the second portion 41b, and is the back face of the surface 42.

[0029] The second portion 41b is provided with a constricted portion 44 that is composed of a recess (first recess) 44a and a recess (second recess) 44b.

[0030] The recess 44a is formed by recessing the surface 42 of the second portion 41b in the plate thickness direction. The recess 44a is formed between the claw portion 41d and the jaw portion 41c. The recess 44a extends linearly from the jaw portion 41c toward the claw portion 41d. The recess 44b is formed by recessing the surface 43 of the second portion 41b in the plate thickness direction. The recess 44b is a groove-shaped recess formed between the claw portion 41d and the surface 45 of the first portion 41a. The second portion 41b has recesses 44a, 44b formed on both sides 42, 43 in a pair. As a result, the second portion 41b has a configuration in which the middle in the protruding direction is narrowed (narrowed portion 44).

[0031] The support plate 41 has a support surface (first support surface) 46 provided at the tip of the second portion 41b, and a support surface (second support surface) 47 provided at the base end. The support surfaces 46, 47 are both arc-shaped curved surfaces. The support surfaces 46, 47 are portions on which the rotating shaft 30 is slidably supported.

[0032] Next, the rotating shaft portion 30 has an inner circumferential space 30b, a part of which in the circumferential direction is opened by an opening portion 30a. The cross-sectional shape of the rotating shaft portion 30 is a substantially C-shaped arc. The rotating shaft portion 30 extends over the entire length of the upper frame 26a, which is an extruded member.

[0033] The opening 30a is an upward opening that is inclined slightly toward the inside of the room. The opening 30a is a portion for inserting the support plate portion 41 into the inner circumferential space 30b. The edge portion (first edge portion) 30c on one side (the outside of the room) of the opening 30a has a tapered claw-like tip. The edge portion (second edge portion) 30d on the other side (the inside of the room) of the opening 30a has a semicircular tip.

[0034] The inner circumferential space 30b is surrounded by an inner circumferential surface 48 having a slightly distorted arc shape. The second portion 41b of the support plate portion 41 is inserted into the inner circumferential space 30b and can slide thereon. The support surfaces 46, 47 of the support plate portion 41 are in slidable contact with the inner circumferential surface 48 of the inner circumferential space 30b. The inner circumferential surface 48 is preferably smaller in radius of curvature than the radius of curvature of the support surface 47 at least in the region where it slides on the support surface 47 on the base end side. That is, in the enlarged view surrounded by the dashed line in FIG. 4, the radius of curvature of the inner circumferential surface 48 indicated by the dashed line r1 is preferably larger than the radius of curvature of the support surface 47 indicated by the dashed line r2. As a result, the inner circumferential surface 48 is in line contact with the support surface 47 (point contact when viewed locally), thereby suppressing sliding resistance.

[0035] Next, the operation and effects of the hinge portion 16 will be described.

[0036] First, we will explain the operation of assembling the hinge portion 16, that is, the operation of hanging the screen 14 on the frame body 12. As shown in Figures 5A to 5D, the fitting 10 is supported by the frame body 12 by assembling the hinge portion 16 by engaging the rotating shaft portion 30 with the shaft support portion 20 using the Kendon method.

[0037] As shown in FIG. 5A, first, the shoji 14 is placed on the exterior side of the frame body 12, and tilted so that the lower frame 26b is on the exterior side of the upper frame 26a. The tilt angle of the shoji 14 is, for example, about 90 degrees or a little larger than 90 degrees. Next, the edge 30d on one side of the pivot shaft 30 and the inner peripheral surface 48 in the vicinity thereof are placed in the recess 44a and brought into contact with the surface 42. Here, the opening 30a in this embodiment has an opening width (the distance between the edges 30c, 30d) larger than the thickness of the second portion 41b of the support plate 41. Therefore, when the edge 30d of the pivot shaft 30 is brought into contact with the recess 44a, the edge 30c on the other side is placed at a position away from the tip (claw portion 41d) of the support plate 41 and the recess 44b.

[0038] Next, as shown in FIG. 5B, the screen 14 is moved downward. Then, the edge 30c is placed in the recess 44b and contacts the surface 43. This causes the edge 30c to be positioned so as to engage with the claw 41d. In other words, the rotating shaft 30 is caught by the shaft support 20, and the assembly work of the hinge 16 is completed. At this time, the edge 30d is in a position away from the recess 44a.

[0039] Finally, the screen 14 is rotated to the fully closed position to complete the work of hanging the screen 14. That is, the screen 14 is rotated toward the inside of the room, which is the closing direction (see FIG. 5C). At this time, the inner peripheral surface 48 of the rotating shaft portion 30 of the hinge portion 16 slides on the support surfaces 46, 47 of the shaft support portion 20, so the screen 14 rotates smoothly. Then, as shown in FIG. 5D, when the surface direction of the screen 14 is arranged along the vertical direction (Y direction), the screen 14 reaches the fully closed position blocking the opening 13 in the frame body 12, and the work of hanging the screen 14 is also completed.

[0040] Next, the pivoting action of the screen 14 using the hinge portion 16 will be described.

[0041] When opening the door screen 14 in the fully closed position shown in Fig. 5D, the cremone handle 38 is unlocked, and then the door screen 14 is pushed toward the outside of the room. Then, as shown in Fig. 5E, the inner circumferential surface 48 of the pivot shaft 30 of the hinge section 16 slides against the support surfaces 46, 47 of the shaft support section 20, and the door screen 14 rotates smoothly. In this embodiment, the radius of curvature of the inner circumferential surface 48 of the pivot shaft 30 is smaller than the radius of curvature of the support surface 47. Therefore, the inner circumferential surface 48 slides against the support surface 47 in line contact. As a result, the sliding resistance between the pivot shaft 30 and the shaft support section 20 is suppressed, and the door screen 14 rotates more smoothly.

[0042] When the screen 14 is rotated further in the opening direction from the state shown in Fig. 5E, the hinge portion 16 initially rotates while the inner circumferential surface 48 of the pivot shaft portion 30 slides against the two support surfaces 46, 47. This stabilizes the rotation of the pivot shaft portion 30 as it is supported by the pair of support surfaces 46, 47. When the screen 14 is opened to a certain extent, the inner circumferential surface 48 of the hinge portion 16 slides only against the support surface 46 on the tip side and moves away from the support surface 47 on the base end side. This reduces the sliding resistance between the pivot shaft portion 30 and the shaft support portion 20, making the rotation even smoother.

[0043] As shown in FIG. 5F, when the edge 30c of the pivot shaft 30 comes into contact with the surface 43 of the recess 44b and then the outer peripheral surface 49 of the pivot shaft 30 comes into contact with the surface 45 of the first portion 41a of the shaft support 20, the pivot shaft 30 reaches the maximum pivot position where further pivoting is restricted. This maximum pivot position is the fully open position of the screen 14. At this position, the edge 30c of the hinge 16 engages with the recess 44b, and the inner peripheral surface 48 comes into contact with the support surface 46, stabilizing the hinge 16. This prevents the pivot shaft 30 from falling off the shaft support 20 and the screen 14 from coming off the frame 12. When closing the screen 14 in the fully open position, the reverse operation to the opening operation described above is performed.

[0044] In this case, the fitting 10 of this embodiment is provided with an arc-shaped pivot shaft 30 provided on the frame 26 and having a partially open inner circumferential space 30b, and a shaft support 20 provided on the frame 12, inserted into the inner circumferential space 30b, and rotatably supporting the pivot shaft 30. The shaft support 20 has a protruding plate 40 protruding from the visible surface 17 of the frame 12, and a support plate 41 provided so as to bend from the protruding plate 40, disposed in the inner circumferential space 30b, and on which an inner circumferential surface 48 of the pivot shaft 30 can slide.

[0045] In this way, the fitting 10 has a rotating shaft 30 with a roughly C-shaped cross section provided on the frame 26, and a shaft support 20 with a roughly J-shaped cross section that supports it provided on the frame 12. This makes it possible for the fitting 10 to prevent the rotating shaft 30 from coming off the shaft support 20 without attaching a part such as a stopper member to the frame 26 (see Figures 5C to 5F). This makes it possible for the fitting 10 to improve the workability of hanging the shoji screen 14 and reduce parts costs.

[0046] Moreover, in the fitting 10 of this embodiment, the support plate portion 41 has a recess 44a formed on one side and a recess 44b formed on the other side. Therefore, when hanging the shoji screen 14, the fitting 10 can smoothly insert the shaft support portion 20 into the pivot shaft portion 30 by utilizing the recess 44a on the one side (see Figs. 5A and 5B). Furthermore, after hanging the shoji screen 14, the fitting 10 can prevent the pivot shaft portion 30 from falling off the shaft support portion 20 by the edge portion 30c of the pivot shaft portion 30 being caught in the recess 44a on the other side (see Figs. 5C to 5F). Therefore, the fitting 10 further improves the workability of hanging the shoji screen 14 and further prevents the shoji screen 14 from falling off after hanging it.

[0047] Such a fitting 10 can prevent the door 14 from falling off without providing a part (e.g., a friction stay) that connects and holds the frame body 12 and the frame body 26, which is generally used in conventional sliding windows, and can further reduce parts costs. In addition, the fitting 10 can omit metal parts such as friction stays, which can reduce rotation failure due to corrosion and part replacement costs. In particular, in a configuration in which the weight of the door 14 is supported by the friction stay, there is a concern that the door 14 may fall off due to corrosion. In this regard, the fitting 10 of this embodiment can support the weight of the door 14 with the hinge part 16. Therefore, even if the fitting 10 is provided with a friction stay, it does not need to support the weight of the door 14. In other words, the fitting 10 may be provided with a friction stay, and in this case, the impact of corrosion of the friction stay is small and replacement is also unnecessary.

[0048] The shaft support portion 20 and the rotating shaft portion 30 constituting the hinge portion 16 are preferably provided over the entire length or substantially the entire length of the upper frame 12a and the upper frame 26a, respectively. In this way, the hinge portion 16 has a long structure, so that the influence of wear due to aging can be minimized. The shaft support portion 20 and the rotating shaft portion 30 may be provided only on a part of the longitudinal direction of the upper frame 12a and the upper frame 26a, respectively, instead of substantially the entire length of the upper frame 12a and the upper frame 26a.

[0049] As described above, the fitting 10 supports the screen 14 on the frame 12 by the hinge portion 16. This allows the fitting 10 to omit parts such as friction stays that connect and hold the screen 14 and the frame 12. However, if such parts are omitted, there is a possibility that the screen 14 will become misaligned relative to the frame 12 along the axial direction (X direction) of the hinge portion 16.

[0050] Next, an example of a configuration for preventing such positional deviation (lateral deviation) of the screen 14 will be described. The lateral deviation prevention structure shown in Figures 6 to 9 has a notch 50 provided at the end of the shaft support part 20. In Figures 6 to 9, the same reference characters as those shown in Figures 1 to 5F indicate the same or similar configurations, and therefore detailed descriptions will be omitted as they have the same or similar functions and effects, and the same applies to the subsequent Figures 10 to 18.

[0051] The cutouts 50 are provided at both ends in the longitudinal direction of the shaft support 20 formed in the upper frame 12a. The cutouts 50 are formed by removing only the shaft support 20 from among the components of the upper frame 12a. In other words, the upper frame 12a provided with the cutouts 50 has a total length of the portion other than the shaft support 20 that is approximately equal to the distance between the visible surfaces 17, 17 of the left and right vertical frames 12c, 12d, and only the shaft support 20 is shorter than the other portions. Therefore, a gap G is formed between the shaft support 20 and the visible surfaces 17, 17 of the vertical frames 12c, 12d by the cutouts 50. Although Figs. 6, 8, and 9 show only the vertical frame 12d and the vertical frame 26d side as a representative example, the vertical frame 12c and the vertical frame 26c side may be symmetrical to this.

[0052] The upper end portions 52 of the left and right vertical frames 26c, 26d are inserted into the left and right gaps G, respectively. That is, the upper end portions 52 of the wall portions 53 on which the projection surface 32 is formed of the vertical frames 26c, 26d are cut out. On the other hand, the upper end portions 52 of the wall portions 54 on which the projection surface 29 is formed of the vertical frames 26c, 26d are left uncut. Therefore, at the upper end portions 52 of the vertical frames 26c, 26d, the projection surface 54a on the inner side of the frame of the wall portion 54 is exposed toward the inner side of the frame. The upper end portion 52 of this wall portion 54 is inserted into the gap G. As a result, the projection surface 54a of the wall portion 54 faces the end surface 50a cut out at the cutout portion 50 of the shaft support portion 20 via a predetermined clearance (see FIG. 8).

[0053] For this reason, even if the screen 14 shifts laterally in the axial direction of the hinge portion 16, the visible surfaces 54a (wall portions 54) of the left and right vertical frames 26c, 26d abut against the left and right end faces 50a of the shaft support portion 20. As a result, the screen 14 is prevented from shifting laterally any further, and is essentially centered in the X direction, ensuring even smoother rotation. Furthermore, when the screen 14 is opened, the wall portions 54 that protrude above the hinge portion 16 hide the hinge portion 16 from the side, improving the appearance quality of the fitting 10.

[0054] Another lateral slippage prevention structure shown in Figs. 10 to 12 has a spacer 56 attached to the end of the shaft support part 20. The spacer 56 is a cylindrical part with a substantially C-shaped cross section, and is made of, for example, resin. The spacer 56 is inserted from the end face side into both ends in the longitudinal direction of the shaft support part 20 formed on the upper frame 12a and attached. The end of the shaft support part 20 to which the spacer 56 is attached is a portion that protrudes outward in the X direction from the end face in the longitudinal direction of the rotating shaft part 30. Therefore, the spacer 56 does not interfere with the rotating shaft part 30.

[0055] The left and right vertical frames 26c, 26d have cutouts 58 formed by removing the upper end 52 of the wall portion 54 where the visible surface 29 is formed. A spacer 56 is disposed in the cutout 58. The spacer 56 is interposed between the visible surface 53a on the outer side of the frame of the wall portion 53 and the visible surfaces 17 of the vertical frames 12c, 12d (see FIG. 12). Although FIGS. 11 and 12 representatively illustrate only the vertical frame 12d and vertical frame 26d side, the vertical frame 12c and vertical frame 26c side may have a symmetrical structure.

[0056] Therefore, even if the screen 14 is displaced laterally in the axial direction of the hinge portion 16, the spacer 56 is braced between the projection surfaces 53a (wall portions 53) of the left and right vertical frames 26c, 26d and the projection surfaces 17 of the left and right vertical frames 12c, 12d. As a result, the screen 14 is prevented from displacing laterally any further and is substantially centered in the X direction, ensuring smoother rotation.

[0057] Next, a modified example of the rotation shaft portion 30 will be described with reference to FIGS.

[0058] The pivot shaft 30 shown in Figs. 1 to 12 is provided directly on the visible surface 29 of the upper frame 26a (see Fig. 4, for example). In contrast to this, as shown in Figs. 13 and 14, the pivot shaft 30 may be provided on the tip of a protrusion 60 formed on the visible surface 29 of the upper frame 26a. The protrusion 60 is a plate piece that protrudes upward from the visible surface 29 of the upper frame 26a. The pivot shaft 30 can be formed integrally with the tip (upper end) of the protrusion 60. In this case, since the upper frame 26a has the protrusion 60, the visible piece 31 is omitted.

[0059] The pivot shaft 30 provided at the tip of the protrusion 60 is positioned at a position offset upward from the visible surface 29 of the upper frame 26a. Therefore, as shown in Figure 14, the pivot shaft 30 can be engaged more smoothly with the shaft support part 20 when assembling the shoji screen 14 to the frame body 12. In other words, by providing the protrusion 60, the workability of assembling the hinge part 16 is further improved.

[0060] Next, a fitting 70 according to a second embodiment of the present invention will be described with reference to FIGS.

[0061] The above-mentioned fitting 10 is a sliding window (top hung window), and the axis of the hinge part 16 which is the pivot axis of the shoji screen 14 is horizontal. In contrast, as shown in Figs. 15 and 16, the fitting 70 of this embodiment is a vertical sliding window (casement window), and the axis of the hinge part 16 which is the pivot axis of the shoji screen 14 is vertical. Therefore, in the fitting 70, the shaft support part 20 is provided on the vertical frame 12c, and the pivot shaft part 30 is provided on the vertical frame 26c. The fitting 70 may also have the shaft support part 20 provided on the vertical frame 12d, and the pivot shaft part 30 provided on the vertical frame 26d. Therefore, even in such fitting 70, the shoji screen 14 can be smoothly pivoted using the hinge part 16.

[0062] Incidentally, since the axis direction of the hinge section 16 of the fitting 70 is vertical, if the friction stay is omitted, the screen 14 will fall under its own weight. In other words, in the fitting 70, there is a possibility that the screen 14 will shift (vertically) in position relative to the frame 12 along the axial direction of the hinge section 16 (Y direction).

[0063] Therefore, the fitting 70 may use a vertical slip prevention structure shown in Fig. 17 and Fig. 18. This vertical slip prevention structure has a spacer 72 attached to the lower end of the shaft support part 20. The spacer 72 may be the same or similar part as the spacer 56 described above. The spacer 72 is inserted from the end face side into the lower end in the longitudinal direction of the shaft support part 20 formed in the vertical frame 12c and attached. The end of the shaft support part 20 to which the spacer 72 is attached is a part that protrudes downward in the Y direction from the end face in the longitudinal direction of the rotating shaft part 30. Therefore, the spacer 72 does not interfere with the rotating shaft part 30. The spacer 72 is interposed between the lower end face of the vertical frame 26c and the visible surface 17 of the lower frame 12b.

[0064] Therefore, even if the screen 14 is displaced vertically in the axial direction of the hinge portion 16, the spacer 72 serves as a support between the lower end face of the vertical frame 26c and the projection surface 17 of the bottom frame 12b. As a result, the screen 14 is prevented from descending any further and is substantially centered in the Y direction, ensuring smoother rotation.

[0065] As described above, the fitting according to one aspect of the present invention is a fitting comprising a frame body, a sliding screen having a frame body and supported rotatably on the frame body, comprising an arc-shaped pivot shaft part provided on the frame body and having an inner circumferential space with a part opened, and an axis support part provided on the frame body, inserted into the inner circumferential space, and supporting the pivot shaft part rotatably, the axis support part having a protruding plate part protruding from the visible surface of the frame body, and a support plate part provided so as to be bent from the protruding plate part, disposed in the inner circumferential space, and on which the inner circumferential surface of the pivot shaft part can slide, the support plate part having a first recess formed on one surface and a second recess formed on the other surface, which is the reverse surface of the first surface. With such a configuration, for example, the pivot shaft part can be hung on the support plate part while a part of the pivot shaft part is placed in the first recess provided on one surface of the support plate part, and the hanging operation of the sliding screen becomes smooth. Moreover, after the pivot shaft is hung on the support plate, another part of the pivot shaft is placed in a second recess on the other side of the support plate, which prevents the pivot shaft from coming off the shaft support without the need to attach a part such as a stopper to the frame. This makes it easier to hang the shoji screen and reduces parts costs. In other words, by forming recesses on both the one and other sides of the support plate, the workability of hanging the shoji screen is further improved and the shoji screen is further prevented from falling off after it is hung.

[0066] The shaft support portion may have a first support surface, which is provided at the tip end of the support plate portion and has an arc-shaped surface on which the inner peripheral surface of the rotating shaft portion can slide, and a second support surface, which is provided at the base end of the support plate portion and has an arc-shaped surface on which the inner peripheral surface of the rotating shaft portion can slide, and the first recess and the second recess may be located between the first support surface and the second support surface. In this case, the rotation of the rotating shaft portion is supported by a pair of support surfaces, making it more stable.

[0067] It is preferable that the radius of curvature of the inner circumferential surface of the pivot shaft is greater than the radius of curvature of the second support surface at least in the range where the inner circumferential surface of the pivot shaft slides on the second support surface. In this case, the inner circumferential surface of the pivot shaft and the second support surface are in line contact with each other, thereby reducing sliding resistance and making the pivoting of the screen smoother.

[0068] The pivot shaft portion may extend over substantially the entire length of the frame material constituting the frame body in the longitudinal direction, and the shaft support portion may extend over substantially the entire length of the frame material constituting the frame body in the longitudinal direction. In this way, the hinge portion has a long structure, so that the influence of wear due to aging can be minimized.

[0069] The frame may have a protruding portion protruding from a surface facing the front surface of the frame body, and the pivot shaft portion may be provided at a tip of the protruding portion. In this way, the workability of assembling the hinge portion is further improved.

[0070] The pivot shaft has a first edge forming an edge on one side of the inner space, and a second edge forming an edge on the other side of the inner space and facing the first edge, and the pivot shaft may be configured such that when the first edge is in contact with the surface of the first recess, the second edge is separated from the second recess, and when the second edge is in contact with the surface of the second recess, the first edge is separated from the first recess. In this way, the first recess can be used during the assembly of the hinge section, and the second recess can be used during the rotation operation after the assembly of the hinge section. As a result, the workability of hanging the screen is further improved, and the screen can be further prevented from falling off after hanging.

[0071] The one surface on which the first recess is provided is a surface facing outward in the bending direction of the support plate from the protruding plate, and the other surface on which the second recess is provided is a surface facing inward in the bending direction of the support plate from the protruding plate, and the second edge of the pivot shaft contacts the surface of the second recess and its outer circumferential surface contacts the surface of the protruding plate, thereby restricting the pivoting of the pivot shaft with respect to the shaft support. This can further prevent the screen from falling off when in the fully open position.

[0072] The shaft support portion may have a notch at an end in the longitudinal direction, and the frame may have another frame member disposed in the notch, the other frame member being perpendicular to the frame member on which the pivot shaft portion is provided. In this way, it is possible to prevent the screen from shifting out of position.

[0073] A spacer may be provided at the end of the shaft support in the longitudinal direction, and the spacer may be interposed between the frame member and another frame member perpendicular to the frame member on which the shaft support is provided. In this way, it is possible to prevent the screen from shifting out of position.

[0074] It should be noted that the present invention is not limited to the above-described embodiment, and can of course be freely modified without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0075] 10,70 fittings, 12 frame, 12a upper frame, 12b lower frame, 12c,12d vertical frame, 14 shoji, 16 hinge portion, 20 shaft support portion, 26 frame, 26a upper frame, 26b lower frame, 26c,26d vertical frame, 28 surface material, 30 pivot shaft portion, 30a opening, 30b inner space, 40 protruding plate portion, 41 support plate portion, 44 constricted portion, 44a,44b recess, 46,47 support surface, 50,58 notch portion, 56,72 spacer

Claims

1. A frame body, A sash having a frame body and supported rotatably relative to the frame body; A fixture comprising: A circular arc-shaped rotation shaft portion provided on the frame and having a partially open inner circumferential space; a shaft support portion provided on the frame, inserted into the inner circumferential space, and rotatably supporting the rotation shaft portion; Equipped with The shaft support portion is A protruding plate portion protruding from the visible surface of the frame body; a support plate portion bent from the protruding plate portion and disposed in the inner circumferential space so that an inner circumferential surface of the rotation shaft portion can slide on the support plate portion; having The support plate portion has a first recess formed on one surface thereof and a second recess formed on the other surface thereof, which is the reverse surface of the first surface. A fixture characterized by:

2. The fitting according to claim 1, The shaft support portion is a first support surface having an arc shape provided at a tip end of the support plate portion, on which an inner peripheral surface of the rotation shaft portion can slide; a second support surface having an arc shape provided at a base end of the support plate portion, on which an inner peripheral surface of the rotation shaft portion can slide; having The first recess and the second recess are located between the first support surface and the second support surface. A fixture characterized by:

3. The fitting according to claim 2, The radius of curvature of the inner circumferential surface of the rotating shaft is larger than the radius of curvature of the second support surface at least in the range where the rotating shaft slides on the second support surface. A fixture characterized by:

4. The fitting according to any one of claims 1 to 3, The pivot shaft portion extends over substantially the entire length of the frame member constituting the frame in the longitudinal direction, The shaft support portion extends over substantially the entire length of the frame material constituting the frame body in the longitudinal direction. A fixture characterized by:

5. The fitting according to any one of claims 1 to 3, The frame has a protruding portion protruding from a surface opposite to the visible surface of the frame body, The rotation shaft portion is provided at the tip of the protrusion. A fixture characterized by:

6. The fitting according to any one of claims 1 to 3, The rotation shaft portion is A first edge portion forming an edge portion on one side of the inner circumferential space; a second edge portion that forms an edge portion on the other side of the inner circumferential space and faces the first edge portion; having The rotation shaft portion is When the first edge portion is in contact with a surface of the first depression, the second edge portion is separated from the second depression; When the second edge portion is in contact with the surface of the second recess, the first edge portion is separated from the first recess. A fixture characterized by:

7. The fitting according to claim 6, the surface on which the first recess is provided is a surface facing outward in a bending direction of the support plate portion from the protruding plate portion, The other surface on which the second recess is provided is a surface facing inward in a bending direction of the support plate portion from the protruding plate portion, The second edge portion contacts the surface of the second recess, and the outer circumferential surface of the rotating shaft portion contacts the surface of the protruding plate portion, thereby restricting the rotating shaft portion from rotating with respect to the shaft support portion. A fixture characterized by:

8. The fitting according to claim 4, The shaft support portion has a notch at an end portion in a longitudinal direction thereof, The frame has another frame member that is perpendicular to the frame member on which the pivot shaft portion is provided and is disposed in the cutout portion. A fixture characterized by:

9. The fitting according to claim 4, a spacer attached to an end of the shaft support portion in a longitudinal direction; The spacer is interposed between the frame and another frame member perpendicular to the frame member on which the shaft support portion is provided. A fixture characterized by:

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