Opening device manufacturing method and billet manufacturing method

Abstract

To provide a manufacturing method for a sustainable opening device using recycled bullion.SOLUTION: When a building is newly constructed, a window 1 is installed via mounting materials 2, 3, 49, when the window 1 is renovated or the building is demolished, the window 1 is removed from the mounting materials 2, 3, 49 and recovered, aluminum is separated from the recovered window 1, recycled metal is manufactured from the separated aluminum, and a new window 1 is manufactured using the recycled metal.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for manufacturing an opening device to be installed in an opening of a building, and a method for manufacturing a billet. [Background technology]

[0002] When a building is demolished, a large amount of aluminum sash scrap is generated, and there is a demand to recycle this. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of the above-described circumstances, an object of the present invention is to provide a sustainable method for manufacturing an opening device and a method for manufacturing a billet using recycled metal. [Means for solving the problem]

[0004] In order to achieve the above object, the manufacturing method of an opening device according to the invention described in claim 1 is characterized in that a window is installed via a mounting material when a building is newly constructed, and when the window is renovated or the building is demolished, the window is removed from the mounting material and recovered, the aluminum is separated from the recovered window, recycled metal is produced from the separated aluminum, and new windows are manufactured using the recycled metal.

[0005] The manufacturing method of an opening device according to the invention described in claim 2 involves installing windows via mounting materials when constructing a new building, removing and recovering the windows from the mounting materials when renovating the windows or demolishing the building, separating the aluminum from the recovered windows, producing recycled metal from the separated aluminum, and manufacturing new windows using the recycled metal, characterized in that an agreement is reached between the sash manufacturer and the client before the windows are installed that the sash manufacturer will remove and recover the windows when renovating the windows or demolishing the building.

[0006] The manufacturing method of an opening device according to the invention described in claim 3 is a manufacturing method of an opening device characterized in that, in any one of the following cases, recycled metal is manufactured from separated aluminum, and a mounting material that can be attached to a main body using the recycled metal and a new window having a frame that can be attached and detached to the mounting material are manufactured. (1) When renovating a window, remove the shoji screen from the window and separate the aluminum from the removed shoji screen. (2) When demolishing a building, remove the shoji screens from the windows before demolition, and after demolition, recover the frames from the waste materials, and separate the aluminum from the removed shoji screens and recovered frames. (3) When demolishing a building, the frames and shoji screens are collected from the waste materials after demolition, and the aluminum is separated from the collected frames and shoji screens.

[0007] The billet manufacturing method according to the invention described in claim 4 is a billet manufacturing method characterized in that, in any one of the following cases, recycled ingots are produced from separated aluminum, and billets are manufactured and sold using the recycled ingots. (1) When renovating a window, remove the shoji screen from the window and separate the aluminum from the removed shoji screen. (2) When demolishing a building, remove the shoji screens from the windows before demolition, and after demolition, recover the frames from the waste materials, and separate the aluminum from the removed shoji screens and recovered frames. (3) When demolishing a building, the frames and shoji screens are collected from the waste materials after demolition, and the aluminum is separated from the collected frames and shoji screens. [Effects of the Invention]

[0008] The manufacturing method for an opening device according to the invention described in claim 1 installs windows via mounting materials when a building is newly constructed, and when the windows are renovated or the building is demolished, removes and recovers the windows from the mounting materials, separates the aluminum from the recovered windows, produces recycled metal from the separated aluminum, and uses the recycled metal to manufacture new windows, thereby providing a sustainable manufacturing method for an opening device using recycled metal.

[0009] The manufacturing method for an opening device according to the invention of claim 2 installs windows via mounting materials when a building is newly constructed, removes and recovers the windows from the mounting materials when the windows are renovated or the building is demolished, separates the aluminum from the recovered windows, produces recycled metal from the separated aluminum, and uses the recycled metal to manufacture new windows, thereby providing a manufacturing method for a sustainable opening device using recycled metal; further, by having an agreement between the sash manufacturer and the client before the windows are installed that the sash manufacturer will remove and recover the windows when the windows are renovated or the building is demolished, the client and sash manufacturer can cooperate to promote the manufacturing of sustainable opening devices using recycled metal.

[0010] The method for manufacturing an opening device according to the invention described in claim 3 can provide a sustainable method for manufacturing an opening device using recycled metal by producing recycled metal from separated aluminum in any one of the following cases, and using the recycled metal to manufacture a mounting material that can be attached to the main body and a new window that has a frame that can be attached and detached to the mounting material. (1) When renovating a window, remove the shoji screen from the window and separate the aluminum from the removed shoji screen. (2) When demolishing a building, remove the shoji screens from the windows before demolition, and after demolition, recover the frames from the waste materials, and separate the aluminum from the removed shoji screens and recovered frames. (3) When demolishing a building, the frames and shoji screens are collected from the waste materials after demolition, and the aluminum is separated from the collected frames and shoji screens.

[0011] The billet manufacturing method according to the invention described in claim 4 can provide a sustainable billet manufacturing method using recycled metal by producing recycled metal from separated aluminum in any one of the following cases, and then manufacturing and selling billets using the recycled metal. (1) When renovating a window, remove the shoji screen from the window and separate the aluminum from the removed shoji screen. (2) When demolishing a building, remove the shoji screens from the windows before demolition, and after demolition, recover the frames from the waste materials, and separate the aluminum from the removed shoji screens and recovered frames. (3) When demolishing a building, the frames and shoji screens are collected from the waste materials after demolition, and the aluminum is separated from the collected frames and shoji screens. [Brief explanation of the drawings]

[0012] [Figure 1] 5A to 5C are diagrams schematically showing the flow of a manufacturing method for an opening device according to one embodiment of the present invention. [Figure 2] 1 is a vertical cross-sectional view showing a first embodiment of an opening device manufactured by a manufacturing method of the present invention. [Figure 3] FIG. 2 is a cross-sectional view of the opening device of the first embodiment. [Figure 4] 5A to 5C are vertical cross-sectional views showing the steps of removing the opening device of the first embodiment from the opening of a building. [Figure 5] 3A to 3C are vertical cross-sectional views showing the steps of attaching the opening device of the first embodiment to an opening in a building. [Figure 6] FIG. 4 is a vertical cross-sectional view showing a second embodiment of an opening device manufactured by the manufacturing method of the present invention. [Figure 7] FIG. 10 is a cross-sectional view of the opening device of the second embodiment. [Figure 8] 10A to 10C are diagrams schematically showing the flow of a manufacturing method for an opening device according to another embodiment of the present invention. [Figure 9] 10A to 10C are diagrams schematically showing the flow of a manufacturing method for an opening device according to yet another embodiment of the present invention. [Figure 10] FIG. 1 is a diagram schematically illustrating a conventional recycling process for aluminum sashes. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figures 2 and 3 show a first embodiment of an opening device manufactured by the manufacturing method of an opening device of the present invention. This opening device is applied to a window (sliding window) 1 for a building, and more specifically, to a French window 1 installed in an opening 4 of a building facing a balcony. This window 1 comprises a frame 5 attached to the opening 4 of the building via a temporary frame (mounting material) 2, and an outer shoji screen 6a and an inner shoji screen 6b provided within the frame 5 in a sliding manner so as to be able to be opened and closed freely.

[0014] 2 and 3, the temporary frame 2 is composed of a rectangular framework of a temporary upper frame 7, a temporary lower frame 8, and left and right temporary vertical frames 9, 9, each made of extruded aluminum alloy. The temporary upper frame 7, the temporary lower frame 8, and the left and right temporary vertical frames 9, 9 each have anchor engagement parts 10 on their outer peripheral sides, and the temporary frame 2 is fixed to the frame 11 by engaging anchors 12 fixed to the frame 11 with the anchor engagement parts 10 and filling mortar 13 between the frame 11 and the anchor engagement parts 10. As shown in Figure 2, the upper surface 11a of the structure 11 outside the temporary sill 8 is the floor of the balcony, and a waterproof sheet 47 is provided to cover the upper surface 11a. The part marked with the reference numeral 48 in Figure 2 is mortar for adjustment.

[0015] As shown in Figure 2, the temporary upper frame 7 has a visible wall 14 at its indoor end, a visible wall 15 extending from the lower end of the visible wall 14 in the indoor / outdoor direction, and an engagement portion 19 with the upper frame 16 of the frame 5 is formed at the outdoor end of the visible wall 15, protruding upward. The temporary upper frame 7 has a hollow portion 39, and the outdoor wall of the hollow portion 39 serves as a screw-receiving portion 20 to which the upper frame 16 is screwed, and a back plate 21 is held in the screw-receiving portion 20. The temporary sill 8 has a visible wall 22 at its indoor end, and an angle portion 24 is formed at the upper end of the visible wall 22 to be screwed to a frame 23. An engagement portion 19 for engaging with the lower frame 17 of the frame 5 is formed to protrude upward on the outdoor side of the visible wall 22 at a height position midway between the vertical direction. The temporary sill 8 has a screw-receiving portion 20 at its outdoor end to which the lower frame 17 is screwed. As shown in Figure 3, the temporary vertical frame 9 has a visible wall 25 that protrudes inward at its indoor end, and an angle portion 24 is formed at the inner peripheral end of the visible wall 25 to be screwed to the frame 23. An engagement portion 19 that protrudes upward is provided on the outdoor surface of the visible wall 25 for engaging with the vertical frame 18 of the frame 5. The temporary vertical frame 9 has a hollow portion 39, and the outdoor wall of the hollow portion 39 serves as a screw-receiving portion 20 to which the vertical frame 18 is screwed, and the screw-receiving portion 20 holds a back panel 21.

[0016] As shown in FIGS. 2 and 3, the frame 5 is composed of an upper frame 16, a lower frame 17, and left and right vertical frames 18, 18, which are made of extruded aluminum alloy members. The upper frame 16, lower frame 17, and left and right vertical frames 18, 18 are attached to the interior side of the room with engaging fittings 26, each of which has a downward-facing hook-shaped bottom, by screws. In addition, the upper frame 16, lower frame 17, and left and right vertical frames 18, 18 each have screw-fastening pieces 27 protruding outward on the exterior side of the room. The frame 5 is attached to the temporary frame 2 by engaging fittings 26 provided on the upper frame 16, lower frame 17, and left and right vertical frames 18,18 from above with engaging portions 19 of the temporary upper frame 7, temporary lower frame 8, and left and right vertical frames 9,9, respectively, and by screwing screw pieces 27 provided on the upper frame 16, lower frame 17, and left and right vertical frames 18,18 into screw-receiving portions 20 of the temporary upper frame 7, temporary lower frame 8, and left and right vertical frames 9,9 with screws 28 from the outside of the room. The temporary upper frame 7 and the temporary vertical frames 9,9 have hollow portions 39, and by having the outside wall of the hollow portions 39 as the screw-receiving portions 20, mortar 13 does not enter the hollow portions 39, so that the screws 28 from the outside of the room can be easily screwed in without being obstructed by the mortar 13. In this way, the frame 2 can be installed dry without filling mortar between the frame 2 and the temporary frame 2. When the frame 5 is installed, the temporary frame 2 is hidden by the frame 5 and cannot be seen. After the frame 5 is attached to the temporary frame 2, a sealing material 29 is filled into the gap between the outer peripheral visible surface on the outside of the room and the main body 11 via the screw fastening piece 27 of the frame 5 to seal it.

[0017] As shown in Figures 2 and 3, the outer shoji screen 6a and the inner shoji screen 6b are constructed by assembling an upper frame 30, a lower frame 31, a door edge frame 32, and a joint frame 33 on all four sides, with double-pane glass 34 fitted inside. As shown in Figure 2, the outer shoji screen 6a is fitted between the rails 35 of the upper frame 16 and the rails 36 of the lower frame 17 from the outside of the room by vertical tension, and is provided so as to be slidable in the longitudinal direction of the upper frame 16 and the lower frame 17. The inner shoji screen 6b is fitted between the shoji guide groove 37 of the upper frame 16 and the rails 36 of the lower frame 17 by vertical tension from the inside of the room, and is provided so as to be slidable in the longitudinal direction of the upper frame 16 and the lower frame 17.

[0018] 6 and 7 show a second embodiment of an opening device manufactured by the manufacturing method of an opening device of the present invention. Like the first embodiment, this opening device is applied to a window (sliding window) 1 for a building, and comprises a frame 5 attached to an opening 4 of a building via a base material 3 and a connecting material 49 (the base material 3 and the connecting material 49 correspond to "mounting materials"), and an outer shoji screen 6a and an inner shoji screen 6b provided in the frame 5 in a sliding manner so as to be able to be opened and closed freely.

[0019] The base material 3 is a piece-like member that is attached at intervals to the inner peripheral surfaces of the top, bottom, left, and right sides of the opening 4 of the building, and is fixed to the building frame 11 with anchor bolts 38. The connecting material 49 has a protrusion 40 that protrudes toward the inner periphery and a base material engaging portion 50 that engages with the base material 3 so that it can slide in the longitudinal direction of the frame 5, and is provided so that it can be attached and detached by engaging it with the base material 3 so that it can slide in the longitudinal direction of the frame 5. The connecting material 49 is fastened to the base material 3, which is fixed to the frame, with screws 41 from the inside of the room.

[0020] The upper frame 16, lower frame 17, and left and right vertical frames 18, 18 that make up the frame 5 have frame-side fixing members 42 attached to the outer peripheral side in positions facing the base material 3. The frame-side fixing members 42 have grooves 43 that open toward the outer peripheral side, and the protrusions 40 of the connecting members 49 engage with the grooves 43. As shown in Figure 6, frame-side fixing members 42 attached to the upper and lower frames 16, 17 are provided with height-adjustment bolts 44, and the height of the frame 5 can be adjusted by adjusting the extension and retraction of the height-adjustment bolts 44. In addition, the interior wall of the groove 43 of the frame-side fixing members 42 attached to the upper and lower frames 16, 17 is fastened to the protrusion 40 of the connecting member 49 with a screw 45 attached from the interior side. The gap between the frame 5 and the body 11 is sealed with a wet sealing material 29 on the outside of the room and with a sheet-like sealing material 46 on the inside of the room.

[0021] The procedure for attaching the frame 5 to the opening 4 will be described below. First, the base material 3 is attached to the opening 4. Next, the frame 5, to which the frame-side fixing member 42 has been attached in advance, is placed in the opening 4 from the inside of the room. Next, the connecting material 49 is attached to the base material 3 by sliding it from the longitudinal direction of the frame 5, the protrusion 40 is engaged with the groove 43 of the frame side fixing member 42, and the connecting material 49 is fixed with the screw 41 from the inside of the room. Next, the height of the frame 5 is adjusted by adjusting the movement of the height adjustment bolts 44, and the upper and lower frame side fixing members 42 are screwed to the protrusions 40 of the connecting material 49 with screws 45 from the inside of the room. Thereafter, the gap between the frame 5 and the body 11 is sealed with sealing materials 29 and 46.

[0022] In this way, the opening device of the second embodiment, like the first embodiment, can be installed dry via the base material 3 and connecting material 49 without filling mortar between the frame 5 and the main body 11, making it easy to install.

[0023] Next, the flow of a manufacturing method of an opening device according to one embodiment of the present invention will be described with reference to Fig. 1. It is assumed that the window 1 of the first embodiment is installed in an opening of a building. When demolishing a building, as shown in Figure 1(a), the frame 5 and shoji screens 6a and 6b are removed before demolishing the building. Figure 4 shows the procedure for removing the frame 5. First, as shown in Figure 4(b), the sealant 29 sealing the frame 5 and the main body 11 is removed. Next, as shown in Figure 4(c), the screws 28 attaching the frame 5 to the temporary frame 2 are removed. Then, as shown in Figure 4(d), the frame 5 is lifted slightly upward to disengage the engaging fittings 26 of the frame 5 from the engaging portions 19 of the temporary frame 2, and the frame 5 is then removed to the outside of the room. Note that Figure 4 shows the frame 5 with the outer shoji screen 6a and inner shoji screen 6b attached, but the outer shoji screen 6a and inner shoji screen 6b are removed from the frame 5 before removing the frame 5. When renovating the window 1, the frame 5 and the shoji screens 6a and 6b are removed in the same way as when demolishing a building.

[0024] A method for removing the window 1 (see FIGS. 6 and 7) of the second embodiment when it is installed in an opening in a building will now be described. First, remove the outer shoji screen 6a and the inner shoji screen 6b from the frame 5 by twisting them up and down. Next, the sealing material 46 on the indoor side is removed, and the screws 41 that secure the connecting material 49 and the screws 45 that secure the frame-side fixing member 42 to the protrusion 40 are removed. Next, the connecting member 49 is slid in the longitudinal direction of the frame 5 and removed. This releases the frame 5 from the base material 3, allowing the frame 5 to be removed inside the room. Note that before removing the frame 5 inside the room, it is necessary to slightly destroy the interior materials (ceiling, picture frames, etc.).

[0025] The removed frame 5 and shoji screens 6a, 6b are transported to a recycling company as shown in Figure 1(b) and recycled by the recycling company. The removed shoji screens 6a, 6b are crushed after the glass is removed and separated into different materials as shown in Figure 1(c). The removed frame 5 is crushed and separated into different materials as shown in Figure 1(c). The separated aluminum is then melted as shown in Figure 1(d) and cast as shown in Figure 1(e) to produce recycled ingots as shown in Figure 1(f).Recycled ingots can be produced using only 3% of the energy required to produce new ingots from bauxite, so producing and using recycled ingots can make a significant contribution to energy conservation. Then, as shown in Figure 1(g), the recycled metal is extruded and cut to manufacture a new window 1. The aluminum scraps generated during the manufacture of the new window 1 are collected and recycled together with the aluminum separated and sorted from the removed frame 5 and screens 6a and 6b. The new window 1 will be either the first embodiment, which is installed in an opening 4 of a building via a temporary frame 2, or the second embodiment, which is installed in an opening 4 of a building via a base material 3 and a connecting material 49, as shown in Figure 1(h). As shown in FIG. 1(j), billets 51 can be manufactured from the recycled metal and sold to businesses that own or manage the buildings from which the windows 1 have been removed, or to other businesses.

[0026] When a building is demolished, the discarded frames 2 are collected from the waste materials after the building is demolished. Since the collected discarded frames 2 have mortar attached to them, they are transported to an intermediate processing company where the mortar is removed, and then they are transported to a recycling company where the aluminum is separated, so that the discarded frames 2 can also be recycled.

[0027] The new window 1 is installed in an opening 4 in a newly constructed building, as shown in FIG. 1(i), or in an opening 4 in a building from which a window 1 has been removed for renovation. Figure 5 shows the procedure for installing a new window 1 in an opening 4 of a building (in the case of the first embodiment). As shown in Figure 5(a), a temporary frame 2 is already attached to the opening 4 of the building, and the frame 5 of the new window 1 is placed inside the temporary frame 2 from the outside of the room, and as shown in Figure 5(b), the engaging fittings 26 provided on the inside of the frame 5 are engaged with the engaging parts 19 of the temporary frame 2 from above. Next, as shown in FIG. 5(c), the screw fastening piece 27 provided on the exterior side of the frame 5 is screwed to the screwed portion 20 of the temporary frame 2 with a screw 28 from the exterior side. Then, the gap between the outer peripheral surface on the outside of the room and the main body 11 is filled with sealing material 29 through the screw fastening piece 27 of the frame 5 to seal it. In Figure 5, the outer shoji screen 6a and inner shoji screen 6b are shown attached to the frame 5, but the frame 5 is first attached to the opening 4, and then the outer shoji screen 6a and inner shoji screen 6b are attached to the attached frame 5.

[0028] Figure 10 shows the conventional recycling flow of aluminum sashes for comparison with the present invention. Because the frame 90 of a normal window is fixed to the building's framework with mortar, it cannot be removed before demolition. Therefore, only the shoji screen 91 is removed before the building is demolished, and the frame 90 is collected after the building is demolished with the mortar still attached. The collected frame 90 must be transported to an intermediate processing company to have the mortar removed. Because the frame 90 of a new window 92 manufactured from recycled metal is fixed to the building's framework with mortar, it cannot be removed during building demolition or window renovation. In contrast, according to the manufacturing method of the opening device of the present invention, as mentioned above, not only the screens 6a and 6b but also the frame 5 can be removed when demolishing a building or renovating windows, making recycling easy.

[0029] The new window 1 may be installed in a building other than the building from which the window 1 was removed for demolition or window renovation, but may be installed in the same building from which the window 1 was removed for window renovation. Furthermore, in the manufacturing method of the opening device of the present invention, when installing the window 1 in a new building construction project, renovating the window 1, or demolishing the building, an agreement can be made between the sash manufacturer and the client that the sash manufacturer will remove and collect the window 1. This makes it possible to provide the window 1 at a lower cost in the form of a lease agreement, promoting the sustainable manufacturing of opening devices using recycled metals.

[0030] 8 shows the flow of a manufacturing method of an opening device according to another embodiment of the present invention. A window is installed in an opening of a building with a frame 90 fixed to the building frame with mortar. When a building is demolished, as shown in Figure 8(a), only the shoji screens 91 are removed from the windows before demolition, and the removed shoji screens 91 are taken to a recycling company. The frames 90 are recovered from the waste materials after demolition, and since the recovered frames 90 still have mortar attached, they are taken to an intermediate processing company, where the mortar is removed, before being taken to a recycling company. When renovating a window, only the shoji screen 91 is removed, and the frame 90 is not removed.

[0031] The removed frame 90 and shoji screen 91 are transported to a recycling company as shown in Figure 8(b), and are recycled by the recycling company. The removed shoji screen 91 is crushed after the glass is removed, and the materials are separated as shown in Figure 8(c). The removed frame 90 is crushed, and the materials are separated as shown in Figure 8(c). The separated aluminum is then melted as shown in Figure 8(d) and cast as shown in Figure 8(e) to produce recycled ingots as shown in Figure 8(f).Recycled ingots can be produced using only 3% of the energy required to produce new ingots from bauxite. 8(g), the recycled metal is extruded and cut to manufacture a new window 1. The aluminum scraps generated during the manufacture of the new window 1 are collected and recycled together with the aluminum separated and sorted from the removed frame 90 and shoji screen 91. The new window 1 will be either the first embodiment, which is installed in an opening 4 of a building via a temporary frame 2, or the second embodiment, which is installed in an opening 4 of a building via a base material 3 and a connecting material 49, as shown in Figure 8(h). As shown in FIG. 8(j), billets 51 can be manufactured from the recycled metal and the manufactured billets 51 can be sold to businesses that own or manage the buildings from which the windows 1 have been removed or to other businesses. Thereafter, as shown in FIG. 8(i), the manufactured new window 1 is dry-fitted to the opening of the building via a temporary frame 2 or base material 3 and connecting material 49.

[0032] According to the manufacturing method of the opening device of this embodiment, the new window 1 manufactured using recycled metal is dry-mounted to the opening 4 of the building via the disposable frame 2 or base material 3 and connecting material 49, so that when the building is later demolished or the window is remodeled, not only the shoji screens 6a, 6b but also the frame 5 can be easily removed, making recycling easy.

[0033] Figure 9 shows the flow of a manufacturing method for an opening device according to yet another embodiment of the present invention. In the embodiment of Figure 8, only the shoji screen 91 is removed from the window before dismantling, and the frame 90 is collected from the waste materials after dismantling, but the embodiment of Figure 9 differs in that, as shown in Figure 9(a), the shoji screen 91 is not removed from the window before dismantling, and the frame 90 and shoji screen 91 are collected from the waste materials after dismantling. The flow thereafter is the same as in the embodiment of Figure 8. In this embodiment, there is no need to remove the shoji screen 91 before dismantling, which reduces time and costs.

[0034] As described above, in the manufacturing method of this opening device, when a building is newly constructed, the window 1 is installed via mounting materials (the disposable frame 2, base material 3, and connecting material 49), and when the window 1 is renovated or the building is demolished, the window 1 is removed and recovered from the mounting materials 2, 3, and 49, the aluminum is separated from the recovered window 1, recycled metal is produced from the separated aluminum, and new window 1 is manufactured using the recycled metal (see Figure 1), thereby providing a sustainable manufacturing method for an opening device using recycled metal. Since no mortar is filled between the window 1 and the mounting materials 2, 3, 49 (see Figures 2, 3, 6, 7), the window 1 can be easily removed and mounted. The window 1 can be attached and detached from the mounting material 2 from the outside of the room (see FIGS. 4 and 5), so that the window 1 can be easily attached and detached from the outside of the room. The mounting material 2 is a temporary frame 2 that is attached to the opening in the body (see Figures 2 and 3), which makes it even easier to attach and detach the window 1. The mounting materials 3, 49 are base materials 3 and connecting materials 49 that can be attached at regular intervals to openings in the main body (see Figures 6 and 7), which reduces the material costs of the mounting materials 3, 49 and makes it easy to install the mounting materials 3, 49. The frame 5 is attached to the mounting members 2, 3, 49 so as to be freely detachable (see Figs. 2, 3, 6, 7), so that the frame 5 can be easily attached and detached, improving workability.

[0035] Furthermore, in the manufacturing method of this opening device, an agreement is made between the sash manufacturer and the client before the window 1 is installed that the sash manufacturer will remove and collect the window 1 when renovating the window 1 or demolishing the building, which allows the client and sash manufacturer to cooperate in promoting the manufacturing of sustainable opening devices using recycled metals.

[0036] Furthermore, in any one of the following cases, the manufacturing method of this opening device can provide a sustainable manufacturing method of an opening device using recycled metal by producing recycled metal from the separated aluminum, and using the recycled metal to manufacture mounting materials (disposable frame 2, base material 3 and connecting material 49) that can be attached to the main body 11, and a new window 1 having a frame 5 that can be attached and detached to the mounting materials 2, 3 and 49 (see Figures 8 and 9). (1) When renovating a window, remove the shoji screen 91 from the window and separate the aluminum from the removed shoji screen 91. (2) When demolishing a building, the shoji screens 91 are removed from the windows before the demolition, and the frames 90 are collected from the waste materials after the demolition, and the aluminum is separated from the removed shoji screens 91 and the collected frames 90. (3) When a building is demolished, the frames 90 and the shoji screens 91 are collected from the waste materials after the demolition, and the aluminum is separated from the collected frames 90 and shoji screens 91.

[0037] This billet manufacturing method can provide a sustainable method for manufacturing billets using recycled ingots by producing recycled ingots from separated aluminum in any one of the following cases, and then manufacturing and selling billets 51 using the recycled ingots (see Figures 8 and 9). (1) When renovating a window, remove the shoji screen 91 from the window and separate the aluminum from the removed shoji screen 91. (2) When demolishing a building, the shoji screens 91 are removed from the windows before the demolition, and the frames 90 are collected from the waste materials after the demolition, and the aluminum is separated from the removed shoji screens 91 and the collected frames 90. (3) When a building is demolished, the frames 90 and the shoji screens 91 are collected from the waste materials after the demolition, and the aluminum is separated from the collected frames 90 and shoji screens 91.

[0038] This opening device (first embodiment) comprises a temporary frame 2 and a window 1, the temporary frame 2 being fixed to a main body 11, the window 1 having a frame 5, the frame 5 engaging with a temporary frame 7 on the inside of the room and attached to the temporary frame 2 by screwing the outside of the room to the temporary frame 2 with screws 28 from the outside of the room, and the gap between the outer periphery of the frame 5 and the main body 11 being sealed from the outside of the room with a sealing material 29 (see Figures 2 and 3), so that the frame 5 can be easily removed to the outside of the room (see Figure 4).

[0039] The present invention is not limited to the above-described embodiments. The window type (window type) is not limited to a sliding window, but various window types such as a casement window and a sliding window can be used. The frame and the frame of the shoji screen may be made of a composite material of aluminum and resin. The material and shape of the mounting material can be changed as appropriate. [Explanation of symbols]

[0040] 1. Window 2. Disposable frame (mounting material) 3 Base material (mounting material) 5 slots 6a Outer Shoji (Shoji) 6b Inner Shoji (Shoji) 49 Connecting material (mounting material)

Claims

1. This method for manufacturing an opening device is characterized in that a window is installed via a mounting material when a building is newly constructed, the window is removed from the mounting material and recovered when the window is renovated or the building is demolished, aluminum is separated from the recovered window, recycled metal is manufactured from the separated aluminum, and a new window is manufactured using the recycled metal.

2. A manufacturing method for an opening device in which windows are installed via mounting materials when a building is newly constructed, and when the windows are renovated or the building is demolished, the windows are removed from the mounting materials and recovered, the aluminum is separated from the recovered windows, recycled metal is produced from the separated aluminum, and new windows are manufactured using the recycled metal, and an agreement is made between the sash manufacturer and the client before the windows are installed that the sash manufacturer will remove and recover the windows when the windows are renovated or the building is demolished.

3. A method for manufacturing an opening device, characterized in that in any one of the following cases, recycled metal is produced from sorted aluminum, and a new window having a mounting material that can be attached to a main body using the recycled metal and a frame that can be attached and detached to the mounting material is manufactured. (1) When renovating a window, remove the shoji screen from the window and separate the aluminum from the removed shoji screen. (2) When demolishing a building, remove the shoji screens from the windows before demolition, and after demolition, recover the frames from the waste materials, and separate the aluminum from the removed shoji screens and recovered frames. (3) When demolishing a building, the frames and shoji screens are collected from the waste materials after demolition, and the aluminum is separated from the collected frames and shoji screens.

4. A billet manufacturing method, characterized in that, in any one of the following cases, recycled ingots are manufactured from the separated aluminum, and billets are manufactured and sold using the recycled ingots. (1) When renovating a window, remove the shoji screen from the window and separate the aluminum from the removed shoji screen. (2) When demolishing a building, remove the shoji screens from the windows before demolition, and after demolition, recover the frames from the waste materials, and separate the aluminum from the removed shoji screens and recovered frames. (3) When demolishing a building, the frames and shoji screens are collected from the waste materials after demolition, and the aluminum is separated from the collected frames and shoji screens.

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