Fixture, and method for constructing fixture

Abstract

To provide a fixture with good workability for installing a frame on an inner peripheral side of a rectangular opening.SOLUTION: A fixture 10 has a new frame 14 made of a frame material installed on an inner peripheral side of a rectangular opening 13 by an existing frame 12. In the frame material of the new frame 14, a rotatable member 54 that can rotate toward an outer peripheral side with a longitudinal direction of the frame material as a rotatable axis is provided, and a fixed fin piece 69 of the rotatable member 54 is fixed to an interior side front wall 34 of the existing frame 12. A method for constructing the fixture 10 comprises a frame insertion process of inserting the new frame 14 into the inner peripheral side of the rectangular opening 13, a rotation process of rotating the rotatable member 54, which is provided in the frame material of the new frame 14 and can rotate with the longitudinal direction of the frame material as the rotatable axis, to an angle toward the outer peripheral side, and a fixation process of fixing the rotatable member 54 to the interior side front wall 34 of the existing frame 12 from the interior side by screws 57.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fitting in which a frame body formed by framing materials on all four sides of the inner periphery of a rectangular opening is installed, and to a method for installing the fitting. [Background technology]

[0002] When renovating fixtures that have already been installed in a building, there are cases where a new frame is installed inside the existing frame while leaving it in place (Patent Document 1). With such renovated fixtures, there is no need to remove the existing frame, which shortens the construction period and reduces renovation costs. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-165951 Summary of the Invention [Problem to be solved by the invention]

[0004] For ease of construction, it is desirable to insert the new frame into the rectangular opening of the existing frame while keeping all four sides framed with frame materials. However, the new frame may have a spot piece on the interior side for attachment to the existing frame or the building's structure, and the spot piece may interfere with a part of the existing frame, making it impossible to insert. Therefore, when providing such a spot piece on the interior side, each frame material of the new frame must be individually attached to the existing frame and framed inside the rectangular opening, which creates problems with construction. This problem occurs not only when the frame body is attached to the existing frame, but also when it is attached to the inner periphery of other rectangular openings.

[0005] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a fitting and a fitting installation method that have good workability for installing a frame body on the inner circumference of a rectangular opening. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the objective, the fitting of the present invention is a fitting comprising a frame body formed of a frame material arranged on all four sides around the inner periphery of a rectangular opening, the frame material being provided with a rotating member configured to rotate toward the outer periphery with the longitudinal direction of the frame material as a rotation axis, and the rotating member being fixed around the rectangular opening.

[0007] In addition, the method of installing fittings according to the present invention is characterized by comprising a frame body insertion step of inserting a frame body into the inner periphery of a rectangular opening, a rotation step of rotating a rotatable member provided on a frame material with the longitudinal direction of the frame material as a rotation axis at an angle toward the outer periphery, and a fixing step of fixing the rotatable member to the indoor facing surface that forms the periphery of the rectangular opening from the indoor side using a fixing device. Effect of the Invention

[0008] In the present invention, each frame member of the frame body is provided with a rotating member that is configured to be rotatable toward the outer periphery, and the rotating member is fixed around the rectangular opening. Therefore, when the frame body is inserted into the rectangular opening, there is no interference with the rectangular opening. The rotating member can be rotated smoothly due to its rotating structure, and regardless of the length of the frame member, the worker does not need to exert a great deal of force or to be trained, and the frame body can be easily installed on the inner periphery of the rectangular opening. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a vertical cross-sectional view showing a fitting according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a cross-sectional view showing a fitting according to an embodiment of the present invention. [Diagram 3] This is an interior view of the upper corner of the fixture from the inside of the room. [Figure 4] FIG. 2 is a vertical cross-sectional view of a hinge portion and its surrounding area. [Diagram 5] FIG. [Figure 6] FIG. 4 is a schematic perspective view of a rotating member and a shaft support portion before being attached. [Figure 7A] 11A and 11B are vertical cross-sectional views showing an assembly operation of the hinge portion. [Figure 7B] 7B is a diagram showing a state in which the rotating member is slightly raised from the state shown in FIG. 7A. FIG. [Figure 7C] 7C is a diagram showing a state in which the rotating member is further raised from the state shown in FIG. 7B. [Figure 8] 1 is a flowchart showing the steps of a fitting construction method. [Figure 9] 1 is a schematic vertical cross-sectional view showing the steps of a fitting installation method. FIG. [Figure 10] 10 is a schematic vertical cross-sectional view showing how a rotating member is rotated during installation of a fixture. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of a fitting and a fitting installation method according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiment.

[0011] Fig. 1 is a vertical cross-sectional view showing a fitting 10 according to an embodiment of the present invention. Fig. 2 is a horizontal cross-sectional view showing a fitting 10 according to an embodiment of the present invention. Fig. 3 is an interior view of an upper corner of the fitting 10 as seen from the inside of the room.

[0012] The fitting 10 is a remodeled fitting, in which the existing frame 12 remains in place and a new frame (frame body) 14 is attached to the rectangular opening 13 inside it. By not removing the existing frame 12 for the fitting 10, construction costs can be reduced. The fitting 10 is a window frame that supports sliding paper screens (not shown). The frame materials of the existing frame 12 and the new frame 14 are extruded shapes made of metal such as aluminum (including alloys), or composite materials that use resin materials in part. Each frame material is an extruded shape, and is configured so that the entire length along the longitudinal direction has a substantially uniform cross-sectional shape. The same applies to the rotating member 54 described below.

[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 "visible surface" refers to a surface that extends along the visible direction. The "visible direction" refers to a direction perpendicular to the visible direction, and in the case of a vertical frame that is long in the vertical direction, it refers to the left-right direction perpendicular to the longitudinal direction, and in the case of a bottom frame that is long in the horizontal direction, it refers to the up-down direction perpendicular to the longitudinal direction. The "visible surface" refers to a surface that is along the visible direction.

[0014] The existing frame 12 is made up of an upper frame 16, a lower frame 18, and left and right vertical frames 20. The new frame 14 is made up of an upper frame 22, a lower frame 24, and left and right vertical frames 26. Although there are some differences between the vertical frames 20 and 26, only the left side is shown in the figure because the outer periphery is essentially symmetrical on the left and right. The existing frame 12 is fixed to the building frame 28.

[0015] As shown in FIG. 1, the upper frame 16 of the existing frame 12 has a projection wall 30 along the inner peripheral surface of the body 28, an exterior sight wall (exterior sight surface) 32 and an interior sight wall (interior sight surface) 34 that protrude from the exterior and interior ends of the projection wall 30 toward the interior, and multiple fin pieces 35 provided between them. The exterior sight wall 32 forms the periphery of the rectangular opening 13 from the outside, and the interior sight wall 34 forms the periphery from the inside. The exterior sight wall 32, the interior sight wall 34, and the fin piece 35 protrude toward the interior circumference by approximately the same amount. The exterior sight wall 32 and the interior sight wall 34 also protrude slightly toward the outer circumference. The lower frame 18 and the vertical frame 20 of the existing frame 12 are substantially the same as the upper frame 16 in terms of elements that are substantially the same as those of the upper frame 16, and their explanations are omitted.

[0016] The upper frame 22 of the new frame 14 is based on a projection wall 36 with a larger projection width than the upper frame 16. A step 36a is formed on the indoor side of the projection wall 36, which is slightly shifted toward the inner periphery. The projection wall 36 has multiple pockets and screw holes. The upper frame 22 has an exterior hollow section 38 at the outdoor end. The exterior hollow section 38 and other hollow sections described below are surrounded by wall material on all four sides to provide high strength. The exterior hollow section 38 protrudes toward the outer periphery, and its outdoor visible surface is extended toward the inner periphery to form an exterior fin piece 40. The upper frame 22 further has an interior hollow section 42 provided on the indoor side, multiple fin pieces 44 protruding toward the inner periphery from the projection wall 36, and a shaft support section 46 with a J-shaped cross section protruding toward the outer periphery from the step 36a. Since the shaft support portion 46 is provided on the step 36a, it is located slightly more inward than the inner ends of the exterior side sight wall 32, the interior side sight wall 34, and the fin piece 35.

[0017] The exterior hollow section 38 and the interior hollow section 42 are partially shared with the front wall 36. The exterior hollow section 38 is a rectangle that is longer in the front direction. The interior hollow section 42 includes the step 36a and screw holes and is an irregular rectangle that is longer in the front direction.

[0018] The gap between the outer peripheral surface of the outdoor hollow portion 38 and the inner peripheral surface of the body 28 is filled with sealing material 50, with decorative material 48 interposed between them. The gap between the indoor end of the decorative material 48 and the outdoor visible wall 32 of the upper frame 16 is filled with sealing material 50. The sealing material 50 is applied to multiple locations in the fixture 10, and a backup material is used in combination depending on the location of application.

[0019] The indoor facing surface of the outdoor hollow section 38 and the outdoor facing surface of the outdoor facing wall 32 partially face each other, and the gap between them is closed with a hollow rectangular adjustment material 52. The adjustment material 52 is, for example, a metal extrusion. The adjustment material 52 is fixed to the outdoor hollow section 38 and the outdoor facing wall 32 by bonding, adhesion, or the like. The adjustment material 52 determines the position of the new frame 14 in the facing direction relative to the existing frame 12. It is advisable to prepare multiple types of adjustment material 52 according to the dimensions and shape of the existing frame 12. The shaft support section 46 and the indoor facing wall 34 are connected by a rotating member 54. The shaft support section 46, the rotating member 54, and the hinge section 56 will be described in more detail below.

[0020] A cover material 58 is provided by bonding or adhesion between the interior facing surface of the interior hollow portion 42 and the inner peripheral surface of the body 28, covering the rotating member 54 from the interior side. The cover material 58 is, for example, a hollow extruded material. The cover material 58 may be a so-called picture frame. The cover material 58 has four corners that are mitred at 45 degrees (see FIG. 3).

[0021] Regarding the lower frames 18, 24 and vertical frames 20, 26 described below, parts similar to the components of the upper frames 16, 22 described above are given the same reference numerals and detailed description is omitted. In the lower frame 18 of the existing frame 12, the visible width of the indoor-side visible wall 34 is larger than that of the outdoor-side visible wall 32, and it protrudes slightly further toward the inner periphery. Of the multiple fin pieces 35, the fin piece 35a closest to the room protrudes toward the inner periphery of the indoor-side visible wall 34 by a width similar to that of the indoor-side visible wall 34. A hollow portion 60 is formed between the fin piece 35a and the indoor-side visible wall 34.

[0022] The projection wall 36 in the lower frame 24 of the new frame 14 has an interior portion 36c that is significantly shifted inward relative to the exterior portion 36b, and is generally two-stage shaped. A hollow portion 62 is formed at the boundary between the exterior portion 30a and the interior portion 36c. The lower frame 24 is provided with an L-shaped reinforcing member 64 extending from the hollow portion 62 to the exterior portion 36b. The reinforcing member 64 is, for example, stainless steel. The exterior end of the reinforcing member 64 is fixed from below to the interior portion 36c with a screw 57, and the interior end abuts against the bottom wall of the hollow portion 62. The top of one of the fin pieces 35 in the lower frame 18 supports the reinforcing member 64 from below.

[0023] An indoor side sight wall 66 protrudes from the indoor side end of the sight wall 36 towards the outer periphery. The indoor side sight wall 66 also protrudes slightly towards the inner periphery. A cover material 58 is provided between the indoor side sight wall 66 and the sight surface of the main body 28. A part of the indoor side sight surface of the outdoor side hollow portion 38 of the sill 24 and the outdoor side sight surface of the outdoor side sight wall 32 of the sill 18 face each other, and the sight gap between them is closed with an adjustment material 52.

[0024] The shaft support portion 46 protrudes outward from the interior portion 36b. The shaft support portion 46 is provided in the interior portion 36c shifted inward, and is therefore located slightly inward from the interior sight wall 34 and the inner end portions of the fin piece 35a. The tip of the shaft support portion 46 on the lower frame 24 is located slightly inward from the interior sight wall 66.

[0025] As shown in Fig. 2, the vertical frame 20 has a front wall 30, an exterior sight wall 32, an interior sight wall 34, and a fin piece 35. The vertical frame 26 has a front wall 36, an exterior hollow portion 38, an exterior fin piece 40, a fin piece 44, an axis support portion 46, and an exterior sight wall 32. The axis support portion 46 is located slightly more inward than the inner circumferential ends of the multiple fin pieces 35. A cover material 58 is provided between the interior sight wall 66 and the sight surface of the building structure 28. A part of the interior sight surface of the exterior hollow portion 38 of the vertical frame 26 and the exterior sight surface of the exterior sight wall 32 of the vertical frame 20 face each other, and the sight gap between them is closed with an adjustment material 52.

[0026] Next, the shaft support portion 46, the rotating member 54 and the hinge portion 56 will be described. Fig. 4 is a vertical cross-sectional view of the hinge portion 56 and its surrounding area. Fig. 5 is an enlarged cross-sectional view of the hinge portion 56. The rotating member 54 and the hinge portion 56 will be described using an example in which they are provided between the upper frame 16 and the upper frame 22, but the configuration between the lower frame 18 and the lower frame 24 is vertically symmetrical, and the configuration between the vertical frame 20 and the vertical frame 26 is converted from the vertical direction to the horizontal direction, so that description of each will be omitted.

[0027] The rotating member 54 is a type of attachment and has a C-shaped rotating shaft 68 at one end, from which a fixed fin 69 extends toward the outer periphery in Figures 4 and 5. A screw hole 69a is formed in the fixed fin 69 of the rotating member 54. The shaft support portion 46 engages with the rotating shaft 68 to form the hinge portion 56. The fixed fin 69 of the rotating member 54 is fixed to the indoor side view wall 34 by a screw 57 that passes through the screw hole 69a.

[0028] 4 and 5, the fixed fin piece 69 is smoothly connected to the arcuate circumferential surface of the indoor end of the rotating shaft portion 68, and forms an opening 68a extending from the lower end slightly toward the outdoor side. The shaft support portion 46 extends over substantially the entire length of the upper frame 22 in the longitudinal direction, and the rotating member 54 and the rotating shaft portion 68 extend over substantially the entire length of the corresponding shaft support portion 46 (see FIG. 6). In other words, the rotating member 54 is rotatable around the longitudinal direction of the frame material as the rotation axis.

[0029] As described above, the hinge portion 56 is formed by the shaft support portion 46 provided on the upper frame 22 and the rotating shaft portion 68 provided on the rotating member 54. The hinge portion 56 is configured such that the rotating shaft portion 68 is rotatably supported by the shaft support portion 46. Since the hinge portion 56 is formed by connecting shaped members together, it can also be called a shaped member hinge.

[0030] First, the shaft support portion 46 is composed of a protruding plate portion 70 and a support plate portion 71. The cross-sectional shape of the shaft support portion 46 is substantially J-shaped or substantially W-shaped. The shaft support portion 46 extends over the entire length of the upper frame 22, which is an extruded member.

[0031] The protruding plate portion 70 is a straight portion that protrudes from the visible wall 36 of the upper frame 22 toward the outer periphery. The support plate portion 71 has a first portion 71a and a second portion 71b. The first portion 71a is a portion that gradually bends obliquely toward the inside of the room from the end of the protruding plate portion 70 toward the outer periphery. The second portion 71b is a portion that gradually bends obliquely toward the inside of the room from the tip of the first portion 71a toward the inner periphery. The angle between portions 71a and 71b is, for example, a right angle or slightly smaller than a right angle.

[0032] The second portion 71b has a jaw portion 71c at its base end and a claw portion 71d at its tip end. The jaw portion 71c is a bulging portion of a surface (one face) 72 on one side of the second portion 71b. The surface 72 is a face facing outward (upper side, UPPER SIDE) in the bending direction from the first portion 71a to the second portion 71b. The claw portion 71d is a bulging portion of a surface (other face) 73 on the other side of the second portion 71b. The surface 73 is a face facing inward (lower side, LOWER SIDE) in the bending direction from the first portion 71a to the second portion 71b, and is the back face of the surface 72.

[0033] The second portion 71b is provided with a constricted portion 74 composed of a recess (first recess) 74a and a recess (second recess) 74b. The recess 74a is formed by recessing the surface 72 of the second portion 71b in the plate thickness direction. The recess 74a is formed between the claw portion 71d and the jaw portion 71c. The recess 74a extends linearly from the jaw portion 71c toward the claw portion 71d. The recess 74b is formed by recessing the surface 73 of the second portion 71b in the plate thickness direction. The recess 74b is a groove-shaped recess formed between the claw portion 71d and the surface 75 of the first portion 71a. The second portion 71b has recesses 74a and 74b formed on both sides 72 and 73 in pairs. As a result, the second portion 71b has a configuration in which the middle in the protruding direction is constricted.

[0034] The support plate portion 71 has a support surface (first support surface) 76 provided at the tip end of the second portion 71b, and a support surface (second support surface) 77 provided at the base end. Both support surfaces 76, 77 are arc-shaped curved surfaces. The support surface 76 is a relatively small arc, and the support surface 77 is a relatively large arc. The support surfaces 76, 77 are portions that slidably support the rotating shaft portion 68.

[0035] Next, the rotating shaft portion 68 has an inner circumferential space 68b, a part of which in the circumferential direction is opened by an opening portion 68a. The cross-sectional shape of the rotating shaft portion 68 is a substantially C-shaped arc. The opening portion 68a is a downward opening, and is slightly inclined toward the outside of the room. The opening portion 68a is a portion for inserting the support plate portion 71 into the inner circumferential space 68b. An edge portion (first edge portion) 68c on one side (inside of the room) of the opening portion 68a has a tapered claw-like tip. An edge portion (second edge portion) 68d on the other side (outside of the room) of the opening portion 68a has a semicircular tip.

[0036] The inner circumferential space 68b is surrounded by an inner circumferential surface 78 having a slightly distorted arc shape. The second portion 71b of the support plate portion 71 is slidably inserted into the inner circumferential space 68b. The support surfaces 76 and 77 of the support plate portion 71 are in slidable contact with the inner circumferential surface 78 of the inner circumferential space 68b. It is preferable that the radius of curvature of the inner circumferential surface 78 is smaller than the radius of curvature of the support surface 77 at least in the region where the support surface 77 slides. That is, in FIG. 5, it is preferable that the radius of curvature of the inner circumferential surface 78 indicated by the dashed line r1 is larger than the radius of curvature of the support surface 77 indicated by the dashed line r2. As a result, the inner circumferential surface 78 is in line contact with the support surface 77 (point contact when viewed locally), thereby suppressing sliding resistance.

[0037] Next, the operation and effects of the hinge portion 56 will be described. Fig. 6 is a schematic perspective view of the rotating member 54 and the shaft support portion 46 before mounting. Fig. 7A is a vertical cross-sectional view showing the assembly operation of the hinge portion 56. Fig. 7B is a view showing a state in which the rotating member 54 is slightly raised from the state shown in Fig. 7A. Fig. 7C is a view showing a state in which the rotating member 54 is further raised from the state shown in Fig. 7B.

[0038] As shown in Fig. 6, first, the rotating member 54 is placed on the indoor side of the shaft support portion 46 of the upper frame 22. At this time, the rotating member 54 is oriented such that the rotating shaft portion 68 is on the indoor side, the opening portion 68a faces diagonally upward on the outdoor side, and the fixed piece 69 is approximately horizontal on the indoor side. Then, the rotating member 54 is moved to the outdoor side, and the claw portion 71d of the shaft support portion 46 is inserted into the opening portion 68a of the rotating shaft portion 68.

[0039] It is preferable to shorten the protruding plate portion 70 because it suppresses the amount of protrusion of the shaft support portion 46 toward the outer periphery. However, the gap between the claw portion 71d and the projection wall 36 becomes narrow, and the edge portion 68c interferes when the rotating member 54 is moved horizontally when it is attached. In such a case, for example, as shown in FIG. 7A, the fixed fin piece 69 may be inclined slightly toward the outer periphery. In other words, when the rotating member 54 is attached after the new frame 14 is inserted into the rectangular opening 13, the fixed fin piece 69 does not need to be oriented toward the interior of the room strictly along the projection direction, and it is sufficient if it is oriented approximately toward the interior of the room.

[0040] 7A, the edge 68d on one side of the pivot shaft 68 and the inner circumferential surface 78 in the vicinity thereof are then placed in the recess 74a and brought into contact with the surface 72. Here, the opening 68a in this embodiment has an opening width (the distance between the edges 68c, 68d) greater than the thickness of the second portion 71b of the support plate 71. Therefore, when the edge 68d of the pivot shaft 68 is brought into contact with the recess 74a, the edge 68c on the other side is placed at a position away from the tip end (claw portion 71d) of the support plate 71 and the recess 74b.

[0041] Next, as shown in Fig. 7B, the rotating member 54 is moved upward (i.e., toward the outer periphery) as a whole. Then, the edge portion 68c is placed in the recess 74b and contacts the surface 73. This causes the edge portion 68c to be positioned so as to mesh with the claw portion 71d. In other words, the rotating shaft portion 68 is caught by the shaft support portion 46, and the assembly work of the hinge portion 56 is completed. At this time, the edge portion 68d is in a position away from the recess 74a.

[0042] Furthermore, the rotating member 54 is rotated so that the fixed fin 69 faces the outer periphery (see Figs. 7C and 10). At this time, the inner peripheral surface 78 of the rotating shaft 68 of the hinge portion 56 slides on the support surfaces 76, 77 of the shaft support portion 46, so that the rotating member 54 rotates smoothly. Then, as shown in Figs. 4 and 5, the surface direction of the rotating member 54 is arranged along the vertical direction. The fixed fin 69 abuts against the exterior side sight wall 32 and is fixed by the screws 57.

[0043] Next, a method for installing the fitting 10 will be described. Fig. 8 is a flow chart showing the procedure of the installation method of the fitting 10. Fig. 9 is a schematic vertical cross-sectional view showing the procedure of the installation method of the fitting 10. Fig. 10 is a schematic vertical cross-sectional view showing the state in which the rotating member 54 is rotated in the installation of the fitting 10.

[0044] As described above, since the fitting 10 is a remodeling fitting, the existing frame 12 is already fixed to the framework 28, and the new frame 14 is inserted into the rectangular opening 13 formed by the existing frame 12 and attached to the existing frame 12. In this construction, the new frame 14 is assumed to be pre-framed. In other words, since the new frame 14 is not assembled within the existing frame 12, there are no space restrictions and it is easy to assemble. The new frame 14 may be assembled on-site, or may be assembled automatically or semi-automatically in a manufacturing factory. Reinforcement material 64 is attached to the bottom frame 24 of the new frame 14.

[0045] In step S1 (adjusting material step) in Fig. 8, an adhesive or the like is applied to the indoor and outdoor facing surfaces of the adjusting material 52, and the adjusting material 52 is attached to the outdoor facing wall 32 of the existing frame 12, or to the indoor facing surface of the outdoor hollow portion 38 in the newly constructed frame 14. In Fig. 9, the adjusting material 52 is attached to the outdoor facing wall 32.

[0046] In step S2 (frame insertion process), the new frame 14 is inserted from the outside of the room while being suspended on the inner periphery of the rectangular opening 13 of the existing frame 12. During this insertion process, all components of the new frame 14, including the shaft support 46, other than the outdoor hollow portion 38, are located on the inner periphery side of the fin piece 35 of the existing frame 12, so there is no interference. The adjustment material 52 is then sandwiched between the outdoor sight wall 32 and the outdoor hollow portion 38, so that the new frame 14 is positioned in the projection direction. In this process, the new frame 14 may be moved outside from the indoor side and then pulled in, or it may be directly inserted from the outdoor side. When directly inserting from the outdoor side, it is recommended to provide scaffolding as necessary.

[0047] In step S3 (mounting step), the rotating shaft 68 of the rotating member 54 is mounted to the shaft support portion 46 of each frame material from the indoor side (see Figs. 6 and 7A). Then, the rotating shaft 68 is displaced slightly outward to engage with the shaft support portion 46 (see Fig. 7B). This prevents the rotating shaft 68 from slipping out of the shaft support portion 46 toward the indoor side, and the rotating member 54 becomes rotatable with the rotating shaft 68 as a reference.

[0048] In step S4 (rotation process), the rotating member 54 is rotated around the hinge portion 56 as the central axis at an angle from a direction facing the interior of the room toward the outer periphery (see Figures 7C and 10), and the fixed fin piece 69 is abutted against the interior side visible wall 34.

[0049] In step S5 (fixing step), the fixing fin piece 69 of the rotating member 54 is fixed to the interior side visible wall 34, which is part of the existing frame 12 that forms the periphery of the rectangular opening 13, from the interior side with the screw 57.

[0050] In step S6, a cover material 58 is attached to cover the rotating member 54 so that it cannot be seen from the inside of the room.

[0051] As described above, according to the fitting 10 and its construction method, each frame material of the new frame 14 is provided with a rotating member 54 that is configured to be rotatable toward the outer periphery, and the rotating member 54 is fixed around the rectangular opening 13. Therefore, when the new frame 14 is inserted into the rectangular opening 13, it does not interfere with the fin piece 35 of the existing frame 12. The rotating member 54 is rotatable at the hinge portion 56, and can be rotated smoothly, so that the worker does not need to push it in with a strong force or to become skilled, regardless of the length of the frame material. No tools are required to attach the rotating member 54 to the shaft support portion 46. In addition, the new frame 14 can be pre-framed in a place without spatial constraints before construction. In this way, the fitting 10 and its construction method have good workability for installing the new frame 14 on the inner periphery of the rectangular opening 13.

[0052] Furthermore, the structure of the hinge portion 56 positions and stabilizes the shaft support portion 46 in the front direction. Also, the C-shaped pivot shaft portion 68 deeply engages with the shaft support portion 46 over a wide angular range, and can stabilize it in the front direction as well. Therefore, for example, even if a large external force toward the outside of the room acts on the newly installed frame 14, the shaft support portion 46 will not come off the pivot shaft portion 68.

[0053] The rotating member 54 rotates about the hinge portion 56 as a central axis, angled from pointing inside the room to pointing toward the outer periphery, and is fixed to the interior side facing wall 34 from the interior side with screws 57. Therefore, basically all work can be done from the interior side, further improving ease of installation.

[0054] Although it is possible to engage the pivot shaft portion 68 and the shaft support portion 46 while sliding them in the longitudinal direction, if the pivot member 54 is attached from the inside of the room, it is possible to remove the pivot member 54 when inserting the new frame 14 into the rectangular opening 13 and reliably avoid interference with the fin piece 35. If the pivot member 54 is removed when inserting the new frame 14 into the rectangular opening 13, there are no moving parts and the new frame 14 is easy to handle. However, depending on the construction conditions, the pivot member 54 may be attached in advance when inserting the new frame 14 into the rectangular opening 13. In this case, the hinge portion 56 may have some damping properties due to friction or the like so that the fixed fin piece 69 of the pivot member 54 is maintained in a state facing the room along the expected direction.

[0055] The above explanation was given using the example of renovated fittings, but the frame body equivalent to the newly installed frame 14 can be attached not only to the existing frame 12, but can also be applied, for example, to the case where it is installed on the inner periphery of a rectangular opening 13 formed by the main body 28.

[0056] 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.

[0057] The fixture according to this embodiment is a fixture in which a frame body is installed on the inner periphery of a rectangular opening, and the frame body is provided with a rotating member that can rotate toward the outer periphery with the longitudinal direction of the frame body as a rotation axis, and the rotating member is fixed around the periphery of the rectangular opening. With this configuration, there is no interference with the rectangular opening when the frame body is inserted into the rectangular opening. The rotating member can be rotated smoothly due to the rotating structure, and the worker does not need to exert a large force or to be trained regardless of the length of the frame body, and the fixture has good workability for installing the frame body on the inner periphery of the rectangular opening.

[0058] The rotating member has an arc-shaped rotating shaft having an inner space with an opening in the circumferential direction, and the frame material has an axis support part that is inserted into the inner space through the opening and rotatably supports the rotating shaft part. The axis support part has a protruding plate part protruding from the outer peripheral side visible surface of the frame material, and a support plate part that is bent from the protruding plate part and is disposed in the inner space and can slide on the inner peripheral surface of the rotating shaft part. The support plate part may have a first recess formed on one surface and a second recess formed on the other surface, which is the back surface of the one surface. With this configuration, it is possible to prevent the rotating shaft part from coming off the axis support part. Therefore, the fitting can improve the construction workability and reduce the parts cost. In particular, in the fitting, the workability is further improved by forming recesses on each of the one surface and the other surface of the support plate part.

[0059] The shaft support portion may have a first support surface in an arc shape provided at a tip end of the support plate portion and capable of sliding on the inner peripheral surface of the rotating shaft portion, and a second support surface in an arc shape provided at a base end of the support plate portion and capable of sliding on the inner peripheral surface of the rotating shaft portion, 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.

[0060] The radius of curvature of the inner circumferential surface of the rotating shaft may be greater than the radius of curvature of the second support surface at least in the range where the second support surface slides. In this case, the inner circumferential surface of the rotating shaft and the second support surface are in line contact with each other, thereby suppressing sliding resistance and making the rotation of the rotating member smoother.

[0061] The pivot shaft has a first edge forming an edge on one side of the opening, and a second edge forming an edge on the other side of the opening and facing the first edge, and when the first edge of the pivot shaft 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 work of the hinge part, and the second recess can be used during the rotation operation after the assembly of the hinge part. As a result, the workability of the construction is further improved, and the pivot shaft and the shaft support part are reliably engaged even after construction.

[0062] The one surface on which the first recess is provided may be 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 may be a surface facing inward in the bending direction of the support plate from the protruding plate, and the maximum rotation position of the rotating shaft with respect to the shaft support may be restricted by the second edge contacting the surface of the second recess and the outer circumferential surface contacting the surface of the protruding plate. In this way, the rotating shaft and the shaft support are reliably engaged with each other even after the rotating member is fixed.

[0063] The shaft support portion may extend over substantially the entire length of the frame member in the longitudinal direction, and the rotating member and the rotating shaft portion may extend over substantially the entire length of the corresponding shaft support portion. In this way, the hinge portion has a long structure, so that the influence of wear due to aging can be minimized.

[0064] The rotating member may be angled from the center of rotation toward the outer periphery and may be fixed from the inside of the room to the interior facing surface that forms the periphery of the rectangular opening by a fixing device. This allows construction work to be performed from the inside of the room.

[0065] The rectangular opening may be provided with an adjustment member for closing a gap between a part of the frame member and an exterior facing surface that defines the periphery of the rectangular opening. The adjustment member positions the frame body in the projection direction.

[0066] If a cover material is provided to cover the rotating member from the inside of the vehicle, the rotating member and the fixing device become invisible, which is preferable from a design standpoint.

[0067] The rectangular opening may be formed by an existing frame, and the frame body may be a new frame that is attached to the existing frame. In this way, the present embodiment is applicable to remodeling fixtures.

[0068] The method for constructing fittings according to the present embodiment is characterized by having a frame body insertion step of inserting a frame body into the inner periphery of a rectangular opening, a rotation step of rotating a rotating member provided on a frame material and rotatable around the longitudinal direction of the frame material as a rotation axis at an angle toward the outer periphery, and a fixing step of fixing the rotating member to the interior facing surface that forms the periphery of the rectangular opening from the interior side with a fixing device. In this method, the frame body does not interfere with the rectangular opening when it is inserted into the rectangular opening. The rotating member can be rotated smoothly due to the rotating structure, and the worker does not need to exert a large force or to be trained regardless of the length of the frame material, and the frame body has good workability for installing the frame body on the inner periphery of the rectangular opening.

[0069] The pivot shaft of the pivot member can be attached to the shaft support of the frame material from the inside of the room, and a mounting step of mounting the pivot shaft to the shaft support may be performed after the frame body insertion step and before the pivot step. This makes it easy to insert the frame into the rectangular opening because there is no pivot member on the frame at the time of the frame body insertion step. Also, the pivot member can be easily attached from the inside of the room after the frame body insertion step.

[0070] The frame body may be inserted into the frame member through a step of providing an adjustment material to close a gap between a part of the frame member and an exterior facing surface that forms the periphery of the rectangular opening. By providing the adjustment material before the frame body insertion step, it becomes easier to position the frame body in the projection direction. [Explanation of symbols]

[0071] 10 fitting, 12 existing frame, 13 rectangular opening, 14 new frame (frame body), 18, 24 lower frame, 20, 26 vertical frame, 28 main body, 30 projection wall, 32 exterior side wall, 34 interior side wall, 35, 44 fin piece, 36 projection wall, 36a step, 46 shaft support part, 52 adjustment material, 54 pivot member, 56 hinge part, 57 screw (fixing device), 58 cover material, 64 reinforcement material, 68 pivot shaft part, 68a opening, 68b inner space, 68c edge part (first edge part), 68d edge part (second edge part), 69 fixed fin piece, 70 protruding plate part, 71 support plate part, 71c jaw part, 71d claw part, 72 Surface (one surface), 73 surface (other surface), 74a recess (first recess), 74b recess (second recess), 76 support surface (first support surface), 77 support surface (second support surface)

Claims

1. A fitting in which a frame body is installed on the inner periphery of a rectangular opening, with frame materials on all four sides, The frame material is provided with a rotating member configured to rotate toward an outer periphery side with a longitudinal direction of the frame material as a rotation axis, The pivot member is fixed around the rectangular opening. A fixture characterized by:

2. the rotating member has an arc-shaped rotating shaft portion at a rotation center, the arc-shaped rotating shaft portion having an inner circumferential space, a part of which in a circumferential direction is opened as an opening portion, the frame member includes a shaft support portion that is inserted into the inner circumferential space through the opening and rotatably supports the pivot shaft portion, The shaft support portion is A protruding plate portion protruding from an outer peripheral side visible surface of the frame material; a support plate portion bent from the protruding plate portion, disposed in the inner circumferential space, and slidable on an inner circumferential surface of the rotating shaft 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. The fixture according to claim 1 .

3. The shaft support portion is a first support surface having an arc shape provided at a tip end of the support plate portion and capable of sliding on an inner circumferential surface of the rotation shaft portion; a second support surface having an arc shape provided at a base end of the support plate portion and slidable on an inner circumferential surface of the rotation shaft portion; having The first recess and the second recess are located between the first support surface and the second support surface.

3. The fitting according to claim 2.

4. The radius of curvature of the inner peripheral surface of the rotating shaft portion is larger than the radius of curvature of the second support surface at least in the range in which the second support surface slides.

4. The fitting according to claim 3.

5. The rotation shaft portion is a first edge portion forming an edge portion on one side of the opening; a second edge portion that forms an edge portion on the other side of the opening portion 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. The fitting according to any one of claims 2 to 4.

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 rotation shaft portion contacts the surface of the protruding plate portion, thereby restricting the maximum rotation position of the rotation shaft portion with respect to the shaft support portion.

6. The fitting according to claim 5.

7. The shaft support portion extends over substantially the entire length of the frame material in the longitudinal direction, The rotating member and the rotating shaft portion extend over substantially the entire length of the corresponding shaft support portion. The fitting according to any one of claims 2 to 4.

8. The rotating member is angled from the center of rotation toward the outer periphery, and is fixed by a fixture from the inside of the room to the interior facing surface that forms the periphery of the rectangular opening. The fixture according to claim 1 .

9. An adjustment material is provided to close the gap between the exterior surface that forms the periphery of the rectangular opening and a part of the frame material. The fixture according to claim 1 .

10. A cover material is provided to cover the rotating member from the inside of the room. The fixture according to claim 1 .

11. The rectangular opening is formed by an existing frame, The frame body is a new frame to be attached to the existing frame. The fixture according to claim 1 .

12. a frame inserting step of inserting a frame into an inner peripheral side of the rectangular opening; a rotating step of rotating a rotating member provided on the frame material and rotatable around a rotation axis in the longitudinal direction of the frame material at an angle toward the outer periphery; a fixing step of fixing the rotating member to a room-side visible surface that forms a periphery of the rectangular opening from the room side using a fixing device; have A method for constructing fixtures, comprising the steps of:

13. The rotating shaft portion of the rotating member can be attached to the shaft support portion of the frame material from the inside of the room, and the mounting step includes a mounting step of mounting the rotating shaft portion to the shaft support portion after the frame body insertion step and before the rotating step. The method for installing fittings according to claim 12.

14. The frame body insertion step includes a step of providing an adjustment material to close a gap between a part of the frame material and an exterior surface that forms the periphery of the rectangular opening. The method for installing fittings according to claim 12.

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