Screen doors and fittings

A reinforcing structure with recesses for attaching components addresses the increased costs due to notch or hole processing in shoji or screen doors, achieving cost-effective assembly.

JP7839628B2Active Publication Date: 2026-04-02LIXIL CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-10-26
Publication Date
2026-04-02

AI Technical Summary

Technical Problem

The provision of a handle portion on shoji or screen doors necessitates notch or hole processing on the reinforcing core material, increasing manufacturing costs.

Method used

A reinforcing structure for frames with a reinforcing core material that includes recesses for attaching components, eliminating the need for cutting or drilling in the core material.

Benefits of technology

Reduces manufacturing costs by allowing for the attachment of handle portions without additional processing on the reinforcing core material.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a reinforcement structure of a frame with reduced manufacturing cost.SOLUTION: A reinforcement structure of a frame comprises a frame 53, and a reinforcement core material 6 arranged in the frame 53. The reinforcement core material 6 has recess parts 61, 62 for attachment of components.SELECTED DRAWING: Figure 4
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Description

Technical Field

[0001] The present disclosure relates to a reinforcing structure for a frame.

Background Art

[0002] Conventionally, there is a reinforcing structure for a frame in which a reinforcing core material is disposed inside the frame of a shoji or a screen door (see, for example, Patent Document 1). The reinforcing core material of the frame described in Patent Document 1 has a U-shaped cross section along the inner surface of the frame in a sectional view. Also, the cross-sectional shape of the reinforcing core material may be formed in a square tube shape.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in some cases, a handle portion for opening and closing a shoji or a screen door is provided on the frame of the shoji or the screen door. When a handle portion is provided on the shoji or the screen door, since the handle portion is formed to be recessed from the surface of the frame, it is necessary to perform notch processing or hole processing on the reinforcing core material disposed inside the frame. However, when notch processing or hole processing is performed on the reinforcing core material, the manufacturing cost increases because an additional processing operation is required. Therefore, it is required to reduce the manufacturing cost.

[0005] An object of the present disclosure is to provide a reinforcing structure for a frame that can reduce the manufacturing cost.

Means for Solving the Problems

[0006] The present disclosure relates to a reinforcing structure for a frame, comprising a frame and a reinforcing core material disposed inside the frame, wherein the reinforcing core material has a recess for attaching a component.

Brief Description of the Drawings

[0007] [Figure 1] This is a front view of a sliding window as seen from the inside. [Figure 2] This is a cross-sectional view along line AA in Figure 1. [Figure 3] This is a front view of a screen door. [Figure 4] This is a cross-sectional view of one side of the vertical frame of the screen door according to the first embodiment. [Figure 5] This is a cross-sectional view of one side of the vertical frame of the screen door in the second embodiment. [Figure 6] This is a cross-sectional view of one side of the vertical frame of the screen door in the third embodiment. [Figure 7] This is a cross-sectional view of one side of the vertical frame of the screen door in the fourth embodiment. [Modes for carrying out the invention]

[0008] The embodiments of this disclosure will be described in detail below with reference to the drawings. The joinery of this embodiment shows a sliding window 1.

[0009] In this specification, "face direction" means the direction of the surfaces of the facing materials 35, 45 in a sliding window 1 fitted into an opening in the wall of a building, and "depth direction" means the thickness direction (i.e., depth direction) of the facing materials 35, 45. The "depth direction" is also the interior-exterior direction. "Face surface" means the respective surfaces of the sliding window 1 that face the exterior and interior sides, and "depth surface" means the surface of the sliding window 1 that extends in the interior-exterior direction. In the drawings, the exterior side of the sliding window 1 is denoted as exterior side X1, and the interior side of the sliding window 1 is denoted as interior side X2.

[0010] As shown in Figures 1 and 2, the sliding window 1 comprises a frame 2 attached to an opening in a building structure (not shown), an outer sash 3 and an inner sash 4 positioned inside the frame 2, and a screen door 5 positioned on the exterior side X1 of the outer sash 3.

[0011] Frame 2 is constructed by framing an upper frame 21, a lower frame 22, and a pair of left and right vertical frames 23, 24 in a rectangular shape.

[0012] Both the outer sash 3 and the inner sash 4 are sliding doors, and they are configured to slide horizontally in the left-right direction of their facing, thereby forming a so-called sliding window where the opening of the frame 2 is closed or opened.

[0013] The outer shoji screen 3 is constructed by assembling an upper frame 31, a lower frame 32, a vertical frame 33 positioned on the leading edge side, and an outer meeting frame 34 (a vertical frame positioned on the trailing edge side) into a rectangular frame body 30, and then housing a facing material 35 made of two panes of glass inside this frame body 30. The outer shoji screen 3 is positioned on the exterior side X1 within the frame body 2 so as to be movable in the left-right direction.

[0014] The interior sliding door 4 is constructed by assembling an upper frame 41, a lower frame 42, a vertical frame 43 positioned on the leading edge side, and an interior meeting frame 44 positioned on the trailing edge side into a rectangular frame body 40, and then housing a facing material 45 made of two panes of glass inside this frame body 40. The interior sliding door 4 is positioned so as to be movable in the left-right direction on the interior side X2 within the frame body 2. As shown in Figure 1, a crescent lock 441 for locking the door is provided on the facing surface of the interior meeting frame 44 of the interior sliding door 4.

[0015] As shown in Figure 2, the screen door 5 is positioned so as to be movable in the left-right direction within the frame 2, on the exterior side X1 of the outer sash 3. The screen door 5 prevents insects and other creatures from entering through the opening that is opened by opening the outer sash 3 or the inner sash 4.

[0016] As shown in Figures 1 to 3, the screen door 5 is composed of a screen door frame body 55 framed in a rectangle by a screen door upper frame 51, a screen door lower frame 52, a screen door vertical frame 53 on one side and a screen door vertical frame 54 on the other side, a screen part 56 (face material) fitted and fixed inside the screen door frame body 55, mohair 57 provided on the visible surface of the indoor side X2 of the screen door vertical frame 53, and mohair 58 provided on the visible surface of the indoor side X2 of the screen door vertical frame 54 on the other side. The screen door upper frame 51, screen door lower frame 52, screen door vertical frame 53 on one side and screen door vertical frame 54 on the other side are all frames for the screen door 5.

[0017] The one-side screen door vertical frame 53 and the other-side screen door vertical frame 54 are arranged at the outer ends in the left-right direction of the screen door 5. The one-side screen door vertical frame 53 and the other-side screen door vertical frame 54 are reinforced by a frame reinforcement structure. As shown in FIG. 2, the frame reinforcement structure includes reinforcement core materials 6 arranged respectively inside the one-side screen door vertical frame 53 and the other-side screen door vertical frame 54. The reinforcement core materials 6 are formed in a long shape extending in the vertical direction.

[0018] The reinforcement core material 6 is arranged inside the one-side screen door vertical frame 53 to reinforce the strength of the one-side screen door vertical frame 53. The reinforcement core material 6 is arranged inside the other-side screen door vertical frame 54 to reinforce the strength of the other-side screen door vertical frame 54. The reinforcement core material 6 is formed of a metal material. In this embodiment, for example, the reinforcement core material 6 is formed of an aluminum material.

[0019] The structure in which the reinforcement core materials 6 are arranged respectively inside the one-side screen door vertical frame 53 and the other-side screen door vertical frame 54 is the same structure except that the left-right directions of their shapes are opposite to each other. Therefore, in this embodiment, the structure in which the reinforcement core material 6 is arranged inside the one-side screen door vertical frame 53 will be described, and the description of the structure in which the reinforcement core material 6 is arranged inside the other-side screen door vertical frame 54 will refer to the description of the structure in which the reinforcement core material 6 is arranged inside the one-side screen door vertical frame 53.

[0020] As shown in FIG. 3, the one-side screen door vertical frame 53 is formed of a profile extending in the vertical direction. As shown in FIG. 4, the one-side screen door vertical frame 53 has a hollow cylindrical square tubular portion 531 with a hollow portion, an outdoor side extension piece 532, an indoor side extension piece 533, and a screen portion attachment portion 534.

[0021] The square tubular portion 531 extends in the vertical direction. As shown in FIG. 4, an opening 531a for attaching a handle portion (for attaching parts) is formed in the square tubular portion 531. The opening 531a for attaching the handle portion penetrates and opens the outdoor side X1 surface and the indoor side X2 surface of the square tubular portion 531 at an intermediate position in the vertical direction (longitudinal direction).

[0022] As shown in Figure 4, a handle portion 59 is attached to the opening 531a for attaching the handle portion. When the handle portion 59 is attached to the opening 531a of the rectangular cylindrical portion 531, it is formed in such a shape that the front side is open and the back side is recessed when viewed from the outside X1 or the inside X2.

[0023] The outdoor extension piece 532 and the indoor extension piece 533 are formed in a plate shape with thickness in the indoor-outdoor direction, and extend parallel to each other outward in the left-right direction from the ends of the outdoor X1 and indoor X2 of the rectangular cylindrical portion 531.

[0024] The mesh attachment portion 534 protrudes from the rectangular cylindrical portion 531 toward the mesh portion 56. The end of the mesh portion 56 is attached to the mesh attachment portion 534.

[0025] A reinforcing core material 6 is placed inside the rectangular cylindrical portion 531 of the vertical frame 53 of the screen door on one side. The reinforcing core material 6 extends in the vertical direction.

[0026] As shown in Figure 4, the reinforcing core material 6 has a cross-sectional shape (the cross-sectional shape when the reinforcing core material 6 is cut in a direction perpendicular to the longitudinal direction) that includes an intermediate linear portion 63, a hollow one-sided frame portion 64 connected to the end of the intermediate linear portion 63 on the side opposite to the mesh portion 56 in the left-right direction (one side in the horizontal direction), and a C-shaped other-sided frame portion 65 connected to the end of the intermediate linear portion 63 on the side of the screen door 5 in the left-right direction (the other side in the horizontal direction). The one-sided frame portion 64, the intermediate linear portion 63, and the other-sided frame portion 65 extend in the vertical direction.

[0027] The one side frame section 64, the intermediate linear section 63, and the other side frame section 65 are arranged side by side in the left-right direction (horizontal direction) of the screen door 5. The one side frame section 64, the intermediate linear section 63, and the other side frame section 65 are arranged in this order from the side furthest from the screen section 56 to the side closest to it.

[0028] The intermediate linear portion 63 is formed extending linearly in the left-right direction (lateral direction) between one side frame portion 64 and the other side frame portion 65. The intermediate linear portion 63 connects the intermediate portions of the one side frame portion 64 and the other side frame portion 65 in the indoor-outdoor direction.

[0029] One side frame portion 64 is formed in a hollow, rectangular tubular shape in cross-section. The one side frame portion 64 is positioned on the opposite side from the screen portion 56 side within the rectangular tubular portion 531 of the one side screen door vertical frame 53, and is positioned along the inner surface of the rectangular tubular portion 531.

[0030] The other side frame portion 65 is formed in a C-shape with a cross-sectional shape that opens towards the mesh portion 56. The other side frame portion 65 is positioned on the mesh portion 56 side inside the vertical frame 53 of the one side screen door and is positioned along the inner surface of the rectangular cylindrical portion 531.

[0031] The width of one side frame section 64 and the other side frame section 65 in the indoor-outdoor direction, the thickness of the intermediate linear section 63, and the length of the one side frame section 64, the other side frame section 65, and the intermediate linear section 63 in the left-right direction are formed to an appropriate size, thickness, and length according to the inner dimensions of the hollow section of the frame, the required strength of the frame, the dimensions of the frame mounting parts, etc.

[0032] As shown in Figure 4, the reinforcing core material 6 has a cross-sectional shape (the cross-sectional shape when the reinforcing core material 6 is cut in a direction perpendicular to the longitudinal direction) that includes an outdoor recess 61 formed on the outdoor side X1 and an indoor recess 62 formed on the indoor side X2. The outdoor recess 61 and the indoor recess 62 extend in the vertical direction.

[0033] The outdoor recess 61 is recessed from the front to the back when the reinforcing core material 6 is viewed from the outdoor side X1. The outdoor recess 61 is composed of a recess that is partitioned on three sides by the side surface 641 of one side frame portion 64 on the outdoor side X1 facing the intermediate linear portion 63, the outdoor side X1 facing the intermediate linear portion 63 surface 631 of the intermediate linear portion 63, and the side surface 651 of the other side frame portion 65 on the outdoor side X1 facing the intermediate linear portion 63.

[0034] The interior recess 62 is recessed from the front to the back when the reinforcing core material 6 is viewed from the interior side X2. The interior recess 62 is composed of a recess that is partitioned on three sides by the side surface 642 of one side frame portion 64 on the interior side X2 facing the intermediate linear portion 63, the interior side X2 facing the intermediate linear portion 63 surface 632 of the intermediate linear portion 63, and the side surface 652 of the other side frame portion 65 on the interior side X2 facing the intermediate linear portion 63.

[0035] The exterior recess 61 and the interior recess 62 are recesses for attaching the handle (for attaching parts). The handle 59 is inserted into the exterior recess 61 and the interior recess 62, respectively, through the opening 531a for attaching the handle of the vertical frame 53 of the screen door on one side.

[0036] This embodiment provides the following advantages. The frame reinforcement structure of this embodiment comprises a one-sided screen door vertical frame 53 and a reinforcing core material 6 disposed within the one-sided screen door vertical frame 53, the reinforcing core material 6 having an outdoor recess 61 and an indoor recess 62 for attaching parts. As a result, since the reinforcing core material 6 is provided with an outdoor recess 61 and an indoor recess 62, there is no need to cut out or drill holes in the reinforcing core material 6 when providing a handle portion 59 on the one-sided screen door vertical frame 53 of the screen door 5. Therefore, manufacturing costs can be reduced.

[0037] Furthermore, in this embodiment, the reinforcing core material 6 has a cross-sectional shape that includes an intermediate linear portion 63 extending linearly in the left-right direction (lateral direction), a one-side frame portion 64 connected to one side of the intermediate linear portion 63 in the left-right direction (lateral direction), and a other-side frame portion 65 connected to the other side of the intermediate linear portion 63 in the left-right direction (lateral direction). This allows for the creation of an outdoor recess 61 or an indoor recess 62 for mounting parts with a simple configuration, thereby reducing the manufacturing cost of the reinforcing core material 6 itself.

[0038] Next, the second to fourth embodiments will be described. For points not described in the second to fourth embodiments, the description of the first embodiment can be referenced. In the second to fourth embodiments, components similar to those in the first embodiment are given the same reference numerals as in the first embodiment, and their descriptions are omitted.

[0039] A second embodiment will now be described. As shown in Figure 5, the reinforcing core material 6A of the frame reinforcement structure in the second embodiment, compared to the reinforcing core material 6 of the first embodiment, includes a other side frame portion 65A in place of the other side frame portion 65 of the reinforcing core material 6 of the first embodiment.

[0040] As shown in Figure 5, the other side frame portion 65A of the reinforcing core material 6A in the second embodiment has a cross-sectional shape that is a rectangular tube shape formed by closing the C-shaped open portion of the other side frame portion 65 of the reinforcing core material 6 in the first embodiment.

[0041] A third embodiment will now be described. As shown in Figure 6, the reinforcing core material 6B of the frame reinforcement structure in the third embodiment, compared to the reinforcing core material 6 of the first embodiment, includes a one-sided frame portion 64A in place of the one-sided frame portion 64 of the reinforcing core material 6 of the first embodiment.

[0042] As shown in Figure 6, the frame portion 64A on one side of the reinforcing core material 6B in the third embodiment is formed in a C-shape with a cross-sectional shape that opens to the side opposite to the mesh portion 56.

[0043] A fourth embodiment will now be described. As shown in Figure 7, the reinforcing core material 6C of the frame reinforcement structure in the fourth embodiment, compared to the reinforcing core material 6 of the first embodiment, includes a one-sided frame portion 64B instead of the one-sided frame portion 64 of the reinforcing core material 6 of the first embodiment.

[0044] In the fourth embodiment, the frame portion 64B on one side of the reinforcing core material 6C is formed in a C-shape with a cross-sectional shape that opens to the side opposite to the mesh portion 56, as shown in Figure 7. In the reinforcing core material 6C of the fourth embodiment, the frame portion 65 on the other side is formed in a C-shape that opens to the mesh portion 56.

[0045] The second to fourth embodiments described above achieve the same effects as the first embodiment described above.

[0046] While a preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the embodiment described above and can be modified as appropriate.

[0047] For example, the above embodiment described a case in which the reinforcing core material 6 is placed within the vertical frame 53 of one side of the screen door 5, but it is not limited to this. The reinforcing core material may also be placed within the frame of a shoji screen.

[0048] Furthermore, in the first to fourth embodiments, the part attached to the recess was a handle portion 59, but it is not limited to this. For example, the part attached to the recess may be a locking part that locks the sliding door to prevent it from moving.

[0049] Furthermore, in the above embodiment, the vertical frame 53 of the screen door on one side is provided with both an exterior recess 61 formed on the exterior side and an interior recess 62 formed on the interior side as recesses for attaching parts, but is not limited to this. The vertical frame 53 of the screen door on one side may be provided with only one of the exterior recess 61 formed on the exterior side or the interior recess 62 formed on the interior side as recesses for attaching parts.

[0050] Furthermore, in the above embodiment, the intermediate linear portion 63 is configured to connect the central portions of one side frame portion 64, 64A, 64B and the other side frame portion 65, 65A in the indoor-outdoor direction, but the configuration is not limited to this. The intermediate linear portion 63 may be positioned closer to either the indoor-outdoor direction of one side frame portion 64, 64A, 64B or the other side frame portion 65, 65A.

[0051] Furthermore, in the above embodiment, reinforcing core material 6 is provided inside both the vertical frame 53 on one side of the screen door and the vertical frame 54 on the other side of the screen door, but this is not the only option. Reinforcing core material 6 may be provided in only one of the vertical frame 53 on one side of the screen door or only one of the vertical frame 54 on the other side of the screen door.

[0052] Furthermore, although the above embodiment provides a reinforcing core material 6 within the vertical frame, it is not limited to this. The reinforcing core material 6 may also be provided within the horizontal frame (upper frame, lower frame). [Explanation of Symbols]

[0053] 3 Outer shoji screen (shoji), 5 Insect screen, 6 Reinforcement core material, 53 One-sided insect screen vertical frame (frame), 61 Outdoor recess (recess), 62 Indoor recess (recess), 63 Intermediate linear section, 64 One-sided frame section, 65 Other-sided frame section

Claims

1. A frame for a screen door, The frame comprises a reinforcing core material placed within the frame, The reinforcing core material has a recess for attaching a recessed mounting component that opens toward the outside, A recess mounting component is inserted and positioned within the recess through an opening formed on the exterior surface of the frame. The reinforcing core material has a cross-sectional shape comprising an intermediate linear portion extending laterally, a one-sided frame portion formed on one side of the intermediate linear portion in the later direction, and a other-sided frame portion formed on the other side of the intermediate linear portion in the later direction. The recess is formed by the outdoor-facing surface of the intermediate linear portion, the lateral side surface of the one frame portion on the intermediate linear portion side, and the lateral side surface of the other frame portion on the intermediate linear portion side, in a screen door.

2. The screen door according to claim 1, wherein the reinforcing core material has recesses for attaching recessed mounting parts formed on both sides in the indoor-outdoor direction.

3. The screen door according to claim 1 or 2, wherein both the one side frame portion and the other side frame portion are formed in a C-shape or hollow shape in cross-section.

4. A building fixture comprising a frame attached to an opening in the building structure, a sliding screen placed inside the frame, and a screen door according to any one of claims 1 to 3.

Citation Information

Patent Citations

  • Door and window

    CN107524375A

  • Door or window assembly with glass inserts

    EP2042678A1

  • JP1972011946U

  • Sash

    JP2000220358A

  • Sliding door

    JP2013060745A