Shoji screens, joinery, and methods for manufacturing shoji screens.

Abstract

To provide a sash which allows for improved manufacturing efficiency through more efficient processing of face bar ends, and a sash manufacturing method.SOLUTION: A sash 2 has a face bar 20 formed of a steel plate having a pair of surface parts 31, 31 that are formed into a rectangle shape and disposed so as to face each other, and folded parts 33 that are folded from one side 31d of the surface part 31 and connect the pair of surface parts 31, 31, and a core material 23 disposed between the pair of surface parts 31, 31. The folded parts 33 are formed at a plurality of positions along the extending direction of one side 31d.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a shoji , doors and fittings and a method for manufacturing a shoji.

Background Art

[0002] Conventionally, a shoji of a fitting such as a parent-child door has a configuration including a front surface material made of a steel plate disposed on the front side, a back surface material made of a steel plate disposed on the back side, and a core material disposed between the front surface material and the back surface material. The end portions in the width direction of the front surface material and the back surface material are bent substantially at right angles over the entire length in the vertical direction and are welded and joined in a butted state (see, for example, Patent Document 1 below).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In Patent Document 1, there is a problem that it is necessary to bend the end portions in the width direction of the front surface material and the back surface material over the entire length in the vertical direction, which requires laborious processing.

[0005] The present disclosure has been made in view of the above circumstances, and provides a shoji , doors and fittings and a method for manufacturing a shoji that can improve the manufacturing efficiency of processing the end portions of the face material.

Means for Solving the Problems

[0006] A shoji according to an aspect of the present disclosure includes a face material formed of a steel plate having a pair of facing portions formed in a rectangular shape and a bent portion bent from one side of the facing portion to connect the pair of facing portions, and a core material disposed between the pair of facing portions. It was a shoji screen,The aforementioned bent portion is formed at multiple locations along the extending direction of one side. The length of the long side of the aforementioned surface portion is the same as the vertical length of the shoji screen, and the aforementioned surface portion constitutes the surface of the shoji screen. . [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view of a door with shoji screens, seen from the outside. [Figure 2] This is a cross-sectional view taken along line II-II in Figure 1. [Figure 3] This is a schematic perspective view of a shoji screen. [Figure 4] This is an enlarged view showing the structure of the folding section of a shoji screen. [Figure 5] This is a diagram illustrating the manufacturing method of shoji screens. [Figure 6] This diagram illustrates the manufacturing method of shoji screens, showing the subsequent steps after Figure 5. [Figure 7] This diagram illustrates the manufacturing method of shoji screens, showing the subsequent steps after Figure 6. [Figure 8] This diagram illustrates the manufacturing method of shoji screens, showing the subsequent steps after Figure 7. [Figure 9] This diagram illustrates the manufacturing method of shoji screens, showing the subsequent steps after Figure 8. [Figure 10] This diagram illustrates the manufacturing method of shoji screens, showing the subsequent steps after Figure 9. [Modes for carrying out the invention]

[0008] The following description will explain a building component equipped with a shoji screen according to one embodiment, based on the drawings. The following embodiment shows one aspect of the present disclosure and is not limiting to the present disclosure, and can be arbitrarily modified within the scope of the technical idea of ​​the present disclosure. In the following description, the direction that connects the outdoor side (the +Y side shown in Figure 2, etc.) and the indoor side (the -Y side shown in Figure 2, etc.) along the horizontal direction will be referred to as the indoor-outdoor direction (direction of arrow Y in the figure). The direction that is perpendicular to the indoor-outdoor direction and along the horizontal direction will be referred to as the width direction (direction of arrow X in the figure). The direction that is perpendicular to the indoor-outdoor direction and the width direction will be referred to as the vertical direction (direction of arrow Z in the figure). In each component, the side that moves away from the center in the indoor-outdoor direction and the width direction may be referred to as the outside, and the side that moves towards the center may be referred to as the inside.

[0009] As shown in FIG. 1, the fitting 100 is a parent-child door. The fitting 100 includes a frame body 1, a child door 2, and a parent door 3.

[0010] The frame body 1 has an upper frame 11, a lower frame 12, and a pair of vertical frames 13, 13. The upper frame 11 and the lower frame 12 extend in the width direction. The vertical frame 13 extends in the vertical direction. The upper end portion of the vertical frame 13 is connected to the upper frame 11. The lower end portion of the vertical frame 13 is connected to the lower frame 12.

[0011] The child door 2 and the parent door 3 are arranged adjacent to each other in the width direction. The child door 2 and the parent door 3 are arranged inside the frame body 1. The length of the child door 2 in the width direction is shorter than the length of the parent door 3 in the width direction.

[0012] The configuration of the child door 2 will be described in detail. As shown in FIG. 2, the child door 2 includes a face material 20, a core material 23, and a heat insulating material 24.

[0013] As shown in FIG. 3, the face material 20 has a pair of face portions 31, 31, an end face portion 32, and a bent portion 33. The face material 20 is formed of a steel plate.

[0014] The face portion 31 is formed in a plate shape. The plate surface of the face portion 31 faces the indoor-outdoor direction. The face portion 31 is rectangular. The face portion 31 is a vertically long rectangle.

[0015] The pair of face portions 31, 31 are arranged to face each other in the indoor-outdoor direction. One face portion 31A is a surface material arranged on the outdoor side. The other face portion 31B is a back material arranged on the indoor side.

[0016] The end face portion 32 is formed at the edges 31a, 31a of the pair of short sides and the edge 31b of one long side of the face portion 31. The end face portion 32 is configured to be bent substantially at a right angle from the edges 31a, 31b of the face portion 31. The end face portion 32 formed at the edge 31a is formed over substantially the entire length in the width direction, which is the extending direction of the short side. The end face portion 32 formed at the edge 31b is formed over substantially the entire length in the vertical direction, which is the extending direction of the long side.

[0017] The other long side of the face portion 31 where the end face portion 32 is not provided is defined as the edge 31d. The bent portion 33 is bent from the edge 31d of the face portion 31. The pair of face portions 31, 31 are connected by the bent portion 33. As shown in FIG. 2, the edge 31d where the bent portion 33 is formed is the edge on the door tip side of the sub-door 2.

[0018] As shown in FIG. 3, the bent portion 33 is formed at a plurality of locations along the vertical direction, which is the extending direction of the edge 31d. The bent portion 33 is formed at three locations: the upper part, the lower part, and substantially the center in the vertical direction of the edge 31d. The number of locations where the bent portion 33 is provided can be set as appropriate.

[0019] As shown in FIG. 4, the left-right direction when the bent portion 33 is viewed from the front is defined as the width direction of the bent portion 33. The width direction of the bent portion 33 formed at the edge 31d is in the vertical direction. When viewed from the front, the bent portion 33 has a substantially rectangular shape that is long in the indoor-outdoor direction. The length A1 in the width direction of the bent portion 33 is preferably about 20 mm, but can be set as appropriate.

[0020] As shown in FIG. 2, the core material 23 is disposed on both sides in the width direction between the pair of face portions 31, 31. The core material 23 is disposed over substantially the entire length in the vertical direction of the sub-door 2. In a cross-section along the width direction and the indoor-outdoor direction, the core material 23 has a C-shaped cross-section that opens inward in the width direction.

[0021] The core material 23 has a first plate portion 23a and a pair of second plate portions 23b. The first plate portion 23a is formed in the shape of a plate. The surface of the first plate portion 23a faces in the width direction. The second plate portions 23b extend inward in the width direction from both ends of the first plate portion 23a in the indoor / outdoor direction. The second plate portions 23b are formed in the shape of a plate. The surface of the second plate portions 23b faces in the indoor / outdoor direction.

[0022] The insulation material 24 is positioned between the pair of surface portions 31, 31, and is located further inward in the width direction than the core material 23.

[0023] The manufacturing method for the sub-door 2 will now be described. The sub-door 2 is manufactured using a processing device not shown in the figure. As shown in Figure 5, a steel plate material panel 40 is prepared. The material panel 40 is cut to the shape of the pre-bending panel 41 shown in Figure 6.

[0024] The pre-bending panel 41 has a pair of flat plate sections 42, 42 and a connecting section 43. The flat plate section 42 is rectangular. The pair of flat plate sections 42, 42 are arranged with their long edges 31d adjacent to each other. The connecting section 43 connects the edges 31d of the pair of flat plate sections 42, 42. Multiple connecting sections 43 are formed along the extending direction of the edges 31d. The connecting sections 43 are located at both ends and in the center of the edges 31d. The direction in which the pair of flat plate sections 42, 42 are adjacent to each other is defined as the alignment direction (direction of arrow B in the figure). The direction along the edges 31d is defined as the width direction of the connecting section 43 (direction of arrow C in the figure).

[0025] As shown in Figure 7, the other three sides of the flat plate portion 42, excluding the edge portion 31d, are bent at approximately right angles to form the surface portion 31 and the end surface portion 32. As shown in Figure 8, adhesive 46 is applied to the inner surface 31e of the surface portion 31.

[0026] As shown in Figure 9, on the inner surface 31e of one surface portion 31A, core material 23 is placed on both sides in the width direction, and insulation material 24 is placed inside the core material 23 in the width direction.

[0027] As shown in Figure 10, the connecting portion 43 is bent at the boundary with the two side surfaces 31 to form a bent portion 33. The other surface 31B is positioned opposite surface 31A, with the core material 23 and insulation material 24 in between. As shown in Figure 3, the bent portion 33 is positioned along the first plate portion 23a of the core material 23. The bent portion 33 positions the core material 23 in the width direction until the adhesive 46 hardens.

[0028] In the joinery 100 configured in this way, the bent portions 33 are formed at three locations separated in the vertical direction, which is the extending direction of the edge portion 31d of the surface portion 31. If the bent portions are formed along approximately the entire length of one side of the surface material, as in the conventional method, the length of the portion to be bent becomes longer, resulting in increased processing time. However, in this embodiment, if the bent portions 33 are formed at three locations rather than along approximately the entire length of one side, processing time can be reduced and manufacturing efficiency can be improved.

[0029] Since the bent portion 33 is formed on the long side of the rectangular surface portion 31, the bent portion 33 can position the core material 23 in the width direction until the adhesive hardens.

[0030] Since the widthwise length A1 of the bent portion 33 is short, approximately 20 mm, it does not require the extra effort of bending the portion.

[0031] The process of installing the core material 23 and the insulation material 24 on the inner surface 31e of one of the surface portions 31A can be carried out by installing the device on a processing apparatus that can accommodate the width of two sub-doors 2.

[0032] Preferred embodiments of this disclosure have been described above with reference to the attached drawings, but it goes without saying that this disclosure is not limited to these examples. The shapes and combinations of the components shown in the above examples are just examples and can be modified in various ways based on design requirements, etc., without departing from the spirit of this disclosure.

[0033] The bent portion 33 only needs to be formed on one side of the surface portion 31, and may be formed on a side other than the edge portion 31d on the door-side.

[0034] In the embodiments described above, a small door 2 was used as an example of a shoji screen, but it is not limited to this. It may also be a main door 3, a single hinged shoji screen, or a shoji screen that fits into a sliding door.

[0035] In the embodiment shown above, insulation material 24 is provided inside the sub-door 2, but the embodiment is not limited to this. Insulation material 24 may not be provided inside the sub-door 2.

[0036] In the embodiment shown above, the core material 23 is arranged on both sides in the width direction between the pair of surface portions 31, 31, but is not limited to this. The location where the core material 23 is installed can be set as appropriate.

[0037] In the embodiment shown above, the core material 23 has a C-shape that opens inward in the width direction, but it is not limited to this. The shape of the core material 23 can be set as appropriate.

[0038] In the embodiment shown above, the bent portion 33 is formed on the long side of the surface portion 31, but it is not limited to this. The bent portion 33 may also be formed on the short side of the surface portion 31. [Explanation of Symbols]

[0039] 1 Frame, 2 Small door (shoji screen), 3 Main door (shoji screen), 20 Panel material, 23 Core material, 31 Panel section, 33 Bent section, 42 Flat section, 43 Connecting section, 100... Joinery

Claims

1. A surface material made of steel plate comprising a pair of rectangular surfaces arranged opposite each other, and a bent portion that is bent from one side of the surfaces to connect the pair of surfaces, A shoji screen comprising a core material disposed between the pair of surfaces, The aforementioned bent portion is formed at multiple locations along the extending direction of one side, The length of the long side of the aforementioned surface is the same as the vertical length of the aforementioned shoji screen. The aforementioned surface portion is a shoji screen that constitutes the surface of the shoji screen.

2. The folding portion is formed on the long side of the surface portion, as described in claim 1.

3. The shoji screen according to claim 1 or 2, wherein the length in the width direction of the folded portion is approximately 20 mm.

4. A frame and, The frame comprises a sliding door positioned inside the frame, The aforementioned shoji screen, A surface material made of steel plate comprising a pair of rectangular surfaces arranged opposite each other, and a bent portion that is bent from one side of the surfaces to connect the pair of surfaces, It has a core material disposed between the pair of surfaces, The aforementioned bent portion is formed at multiple locations along the extending direction of one side, The length of the long side of the aforementioned surface is the same as the vertical length of the aforementioned shoji screen. The aforementioned surface portion is a fixture that constitutes the surface of the shoji screen.

5. The joinery according to claim 4, wherein the shoji screen is at least one of a main door and a child door arranged adjacent to each other inside the frame.

6. The joinery according to claim 4 or 5, further comprising an insulating material positioned between the pair of surface portions, on the side of the shoji screen in the width direction relative to the core material.

7. A pair of rectangular flat plates are formed such that one side of each plate is adjacent to the other, and the two sides of the pair of flat plates are connected by a connecting portion, and the connecting portion is formed at multiple locations along the direction of extension of the one side. The three sides of the flat plate portion other than the one side are bent, A core material is installed on one of the flat plates, A method for manufacturing a shoji screen, comprising bending the connecting portion and arranging the other flat portion so that it faces the first flat portion with the core material in between.

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