Renovation fixtures
The renovation joinery simplifies the installation process by attaching a new frame to all sides of the existing frame without intermediate members, enabling easy customization and installation of facing materials.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- LIXIL CORP
- Filing Date
- 2021-12-28
- Publication Date
- 2026-05-18
AI Technical Summary
Existing refitted fittings require a joining member on the inner peripheral side of the existing frame, necessitating additional attachment operations, which complicates the installation process.
A renovation joinery that attaches a new frame to all four sides of the existing frame without intermediate members, dividing the inner opening into multiple sections and allowing for the direct attachment of facing materials, simplifying the installation process.
The new frame simplifies the attachment operation by allowing multiple facing materials to be easily installed on the inner peripheral side of the existing frame, facilitating easy installation and customization of the opening width.
Smart Images

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Abstract
Description
Technical Field
[0001] This disclosure relates to a refitted fitting.
Background Art
[0002] When refitting a fitting by installing a new frame inside an existing frame, the opening width of the opening of the new frame may be made significantly smaller than the opening width of the inner opening of the existing frame.
[0003] Conventionally, when making the opening width of the opening of the new frame smaller than the opening width of the inner opening of the existing frame, a refitted light-shielding sash that forms a light-transmitting region on the inner peripheral side of the existing frame, a refitted light-shielding panel that forms a light-shielding region, and a joining member that joins the refitted light-shielding sash and the refitted light-shielding panel to the existing frame are provided to improve the appearance seen from the existing frame side (see, for example, Patent Document 1).
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, in the refitted fitting described in Patent Document 1, a joining member, which is an intermediate member for joining to the existing frame, is required on the inner peripheral side of the existing frame. Therefore, after attaching the joining member to the inner peripheral side of the existing frame, an operation of attaching a newly installed member is required, and there is room for improvement from the viewpoint of simplifying the attachment operation.
[0006] An object of this disclosure is to provide a refitted fitting that can form a plurality of types of facing materials on the inner peripheral side of an existing frame and can simplify the attachment operation to the existing frame.
Means for Solving the Problems
[0007] The renovation joinery of this disclosure is a renovation joinery that is attached to an existing frame provided in a building and can form an opening with a smaller opening width than the inner opening of the existing frame, and has a new frame attached to all four sides of the inner circumference of the existing frame, the new frame has an inner opening divided into a plurality of parts, a facing material is placed in each of the plurality of inner openings and is attached facing the inner surface of the existing frame. [Brief explanation of the drawing]
[0008] [Figure 1] This is a front view of a remodeled door or window according to one embodiment, as seen from the interior side. [Figure 2] Figure 1 is a vertical cross-sectional view of the shoji screen portion of the renovated building fixture. [Figure 3] Figure 1 is a cross-sectional view of the renovated building fixtures. [Figure 4] This is a longitudinal cross-sectional view of a remodeled door or window according to another embodiment. [Modes for carrying out the invention]
[0009] The embodiments of this disclosure will be described in detail below with reference to the drawings. The remodeling fixture 1 according to this embodiment is a remodeling fixture 1 for renovations that is formed by installing new components together with a newly installed bathroom unit, while the existing frame 3 fixed to the bathroom wall 100 of the building remains attached to the bathroom wall 100.
[0010] In this specification, "face direction" refers to the direction of the surface material of the remodeling door 1 fitted into the opening formed in the bathroom wall 100, and "depth direction" refers to the thickness direction (i.e., depth direction) of the above-mentioned surface material. The "depth direction" is also the interior-exterior direction. In the drawings, the exterior side of the remodeling door 1 is referred to as the exterior side X1, and the interior side of the remodeling door 1 is referred to as the interior side X2. The lateral direction of the remodeling door 1 is referred to as the "left-right direction."
[0011] The remodeling fixture 1 according to this embodiment is a remodeling sash fitted into an opening in the bathroom wall 100. The remodeling fixture 1 consists of sliding window-type sashes 10, 10 and a light-shielding panel 12 arranged horizontally as the facing material. The remodeling fixture 1 is attached to the existing frame 3 provided in the opening of the bathroom wall 100.
[0012] As shown in Figures 1 to 3, the remodeled joinery 1 comprises a new frame 2, exterior decorative members 41, 42, 43 attached to the exterior X1 of the new frame 2, interior decorative members 51, 52, 53 attached to the interior X2 of the new frame 2, sliding doors 10, 10 housed within the new frame 2 on one side in the left-right direction of a mullion 24 extending vertically from the center of the new frame 2, a light-shielding panel 12 housed in the new frame 2 on the other side in the left-right direction of the mullion 24, and a screen door 11 housed on the exterior X1 of the sliding doors 10, 10. The screen door 11 is omitted in Figures 1 and 3. Figure 2 is shown at a larger scale than Figures 1 and 3 to facilitate understanding of each part.
[0013] The existing frame 3 is a window frame that is already fixed and installed in the opening of the bathroom wall 100. As shown in Figures 2 and 3, the existing frame 3 is installed inside the opening of the bathroom wall 100 and is formed in a rectangular frame shape. The existing frame 3 comprises an existing upper frame 31, an existing lower frame 32, and existing left and right vertical frames 33. A frame member 101 is provided around the four sides of the interior side X2 of the existing frame 3. As shown in Figure 3, the left-right opening width W3 of the opening of the bathroom unit to be remodeled is smaller than the left-right opening width W1 of the inner opening 30 of the existing frame 3.
[0014] As shown in Figure 2, the existing upper frame 31 is attached to the upper side of the opening in the bathroom wall 100 and has guide rails 311 and 312 for the existing sliding door and a guide rail 313 for the existing screen door, which are erected downwards. The interior side X2 portion of the existing upper frame 31 is fixed to the bathroom wall 100 (structure).
[0015] As shown in Figure 2, the existing lower frame 32 is attached to the lower side of the opening in the bathroom wall 100 and has guide rails 321 and 322 for the existing sliding door and a guide rail 323 for the existing screen door, which are erected upwards. The interior side X2 portion of the existing lower frame 32 is fixed to the bathroom wall 100 (structure).
[0016] As shown in Figure 3, the existing vertical frames 33 are attached to the left and right vertical sections on the exterior side X1 of the opening in the bathroom wall 100. The interior side X2 of the existing vertical frames 33 is fixed to the bathroom wall 100 (structure). The pair of existing vertical frames 33 are spaced apart at a predetermined interval. The interval between the pair of existing vertical frames 33 corresponds to the left-right opening width W1 of the interior opening 30 of the existing frame 3.
[0017] The new frame 2 is constructed by assembling the four sides and is attached to the inner side of the existing frame 3 in this assembled state. The outer surface of the new frame 2 directly faces the inner surface of the existing frame 3. In other words, the new frame 2 is attached to the inner side of the existing frame 3 without the interposition of other members such as intermediate members to connect the new frame 2 and the existing frame 3 or to adjust the opening width. The new frame 2 comprises a new upper frame 21, a new lower frame 22, and new left and right vertical frames 23.
[0018] As shown in Figure 2, the newly installed upper frame 21 is attached to the inner circumference (bottom side) of the existing upper frame 31 and extends over approximately the entire length of the existing upper frame 31 in the extension direction. The newly installed upper frame 21 is formed from, for example, a metal material or a resin material. The newly installed upper frame 21 has a main frame portion 211 that extends to cover the bottom side of the existing upper frame 31 in the depth direction, a front wall portion 212 that extends upward from the outdoor side X1 end of the main frame portion 211, a rear wall portion 213 that extends downward from near the indoor side X2 end of the main frame portion 211, and upper guide rails 214 and 215 of the sashes 10, 10 and upper guide rail 216 of the screen door 11 that extend downward from the main frame portion 211, respectively. The front wall portion 212 is positioned along the exterior X1 surface of the screen door guide rail 313 so as to cover the existing upper frame 31's screen door guide rail 313.
[0019] On the upper surface side of the newly installed upper frame 21, a substantially L-shaped existing upper frame accommodation space 21S is formed by the main body frame portion 211 and the front wall portion 212. The newly installed upper frame 21 is inserted from the outdoor side X1 to the lower surface side of the existing upper frame 31. As a result, the existing upper frame 31 can be easily accommodated within the existing upper frame accommodation space 21S. The newly installed upper frame 21 with the existing upper frame 31 accommodated therein is fixed to the upper frame member 101 on the upper side by fixing screws 21a at the end on the indoor side X2 of the main body frame portion 211. The outer peripheral surface (upper surface) 21A of the newly installed upper frame 21 directly faces the inner peripheral surface 31A of the existing upper frame 31. The indoor side decorative member 51 covers the fixing portion by the fixing screws 21a from the indoor side X2. The outdoor side decorative member 41 is attached to the front wall portion 212 from the outdoor side X1 so as to cover the front wall portion 212 of the newly installed upper frame 21.
[0020] As shown in FIG. 2, the newly installed lower frame 22 is attached to the inner peripheral side (upper surface side) of the existing lower frame 32 and extends over substantially the entire length in the extending direction of the existing lower frame 32. The newly installed lower frame 22 is formed of, for example, a metal material or a resin material. The newly installed lower frame 22 includes a main body frame portion 221 that extends so as to cover the lower surface side of the existing lower frame 32 in the prospective direction, a front wall portion 222 that extends downward from the end on the outdoor side X1 of the main body frame portion 221, a rear wall portion 223 that extends upward from near the end on the indoor side X2 of the main body frame portion 221, lower side guide rails 224 and 225 of the shoji 10, 10 that extend upward from the main body frame portion 221, and a lower side guide rail 226 of the screen door 11. The front wall portion 222 extends so as to be close to the screen door guide rail 323 of the existing lower frame 32.
[0021] On the lower surface side of the newly installed lower frame 22, an existing lower frame accommodation space 22S is formed by the main body frame portion 221 and the front wall portion 222. The newly installed lower frame 22 is inserted from the outdoor side X1 to the upper surface side of the existing lower frame 32. As a result, the existing lower frame 32 can be easily accommodated within the existing lower frame accommodation space 22S. The newly installed lower frame 22 with the existing lower frame 32 accommodated therein is fixed to the lower frame member 101 on the lower side by fixing screws 22a at the end on the indoor side X2 of the main body frame portion 221. The outer peripheral surface (lower surface) 22A of the newly installed lower frame 22 directly faces the inner peripheral surface 32A of the existing lower frame 32.
[0022] On the surface of the indoor side X2 of the front wall portion 222, a foot plate member 227 extending toward the upper surface of the existing lower frame 32 is fixed by screws 22b. The end portion of the outdoor side X1 of the main body frame portion 221 is supported by the upper surface of the existing lower frame 32 when the foot plate member 227 is placed on the upper surface of the existing lower frame 32. The indoor side decorative member 51 covers the fixing portion by the fixing screw 22a from the indoor side X2. The outdoor side decorative member 42 is attached to the front wall portion 222 from the outdoor side X1 so as to cover the front wall portion 222 and the guide rail 323 of the newly installed lower frame 22.
[0023] As shown in FIG. 3, the newly installed vertical frame 23 is attached to the inner peripheral side (inner surface side) of the existing vertical frame 33 and extends over substantially the entire length in the extending direction of the existing vertical frame 33. The newly installed vertical frame 23 is formed of, for example, a metal material or a resin material. The newly installed vertical frame 23 has a main body frame portion 231 extending so as to cover the inner surface side of the existing vertical frame 33 in the prospective direction, and a front wall portion 232 extending outward from the end portion of the outdoor side X1 of the main body frame portion 231. The front wall portion 232 extends so as to cover the surface of the outdoor side X1 of the existing vertical frame 33.
[0024] On the outer surface side of the newly installed vertical frame 23, a substantially L-shaped existing vertical frame accommodation space 23S is formed by the main body frame portion 231 and the front wall portion 232. The newly installed vertical frame 23 is inserted into the inner surface side of the existing vertical frame 33 from the outdoor side X1. Thereby, the existing vertical frame 33 can be easily accommodated in the existing vertical frame accommodation space 23S. The newly installed vertical frame 23 in which the existing vertical frame 33 is accommodated in the existing vertical frame accommodation space 23S is fixed to the vertical side frame member 101 by a fixing screw 23a at the end portion of the indoor side X2 of the main body frame portion 231. The outer peripheral surface (upper surface) 23A of the newly installed vertical frame 23 directly faces the inner peripheral surface 33A of the existing vertical frame 33. The indoor side decorative member 53 covers the newly installed vertical frame 23 including the fixing portion by the fixing screw 23a from the indoor side X2. The outdoor side decorative member 43 is attached to the front wall portion 232 from the outdoor side X1 so as to cover the front wall portion 232 of the newly installed vertical frame 23.
[0025] As shown in Figure 3, the cross-sectional shape of the main frame portion 231 of the newly installed vertical frame 23 is rectangular. The newly installed vertical frame 23 has a rectangular hollow portion 231a. Because the newly installed vertical frame 23 has a hollow portion 231a, the inner circumferential surface (inner surface) 23B of the main frame portion 231 of the newly installed vertical frame 23 is positioned at a large distance in the inward facing direction relative to the outer circumferential surface 23A of the newly installed vertical frame 23. The hollow portion 231a of the newly installed vertical frame 23 functions as an opening width adjustment portion that narrows the left-right opening width W1 of the inner opening 30 of the existing frame 3, which corresponds to the spacing of the existing vertical frames 33. The left-right opening width W2 of the inner opening 20 of the new frame 2, which corresponds to the spacing of the inner circumferential surfaces 23B of the main frame portions 231 of the pair of left and right newly installed vertical frames 23, is smaller than the opening width W1. The opening width W2 corresponds to the left-right opening width W3 of the opening of the bathroom unit, which corresponds to the spacing of the pair of left and right interior decorative members 53. In other words, the size of the hollow section 231a is adjusted so that the opening width W2 corresponds to the opening width W3.
[0026] By attaching the new frame 2 to all four sides of the inner circumference of the existing frame 3, the left-right opening width W2 of the inner opening 20 of the new frame 2 is adjusted to be narrower so that it matches the left-right opening width W3 of the opening of the bathroom unit to be remodeled. Since the new frame 2 is attached to the existing frame 3 without the need for other members such as intermediate members to adjust the opening width of the inner opening 20 of the new frame 2 or to join the new frame 2 and the existing frame 3, it can be attached to the inner surface of the existing frame 3 in one go. Therefore, the installation work of the remodeled joinery 1 is simplified.
[0027] As shown in Figures 1 and 3, the remodeled joinery 1 according to this embodiment has two spaces S1 and S2, where the inner opening 20 of the new frame 2 is divided horizontally by a mullion 24 that extends vertically from the central part of the new frame 2. When viewing the remodeled joinery 1 from the interior side, a translucent shoji screen 10, 10 is slidably housed in space S1 to the right of the mullion 24. A light-blocking panel 12, which is a light-blocking material, is housed in space S2 to the left of the mullion 24. The light-blocking panel 12 is a heat-insulating panel.
[0028] As shown in Figure 3, when viewing the remodeled joinery 1 from the interior side, a pair of light-shielding panel support walls 233 are provided protruding from the inner circumferential surface 23B of the main frame portion 231 of the newly installed vertical frame 23 on the left side of the mullion 24, projecting in the direction toward the mullion 24. The pair of light-shielding panel support walls 233 are arranged on the exterior side X1 and the interior side X2 with a spacing corresponding to the thickness of the light-shielding panel 12. The edge of the light-shielding panel 12 on the newly installed vertical frame 23 side is housed and sandwiched between the pair of light-shielding panel support walls 233.
[0029] As shown in Figure 3, a pair of light-shielding panel support walls 241 are provided on the left side surface 24A of the mullion 24, projecting in the visible direction toward the newly installed vertical frame 23 on the left side. The pair of light-shielding panel support walls 241 are positioned on the outdoor side X1 and the indoor side X2 with a spacing corresponding to the thickness of the light-shielding panel 12. The edge of the light-shielding panel 12 on the mullion 24 side is housed and sandwiched between the pair of light-shielding panel support walls 241.
[0030] Although not shown in the diagram, when viewing the remodeled joinery 1 from the interior side, a pair of light-shielding panel support walls similar to those described above are also placed on the lower surface of the main frame portion 211 of the newly installed upper frame 21 and the upper surface of the main frame portion 221 of the newly installed lower frame 22 on the left side of the mullion 24. As a result, the edges of the light-shielding panel 12 on the newly installed upper frame 21 side and the newly installed lower frame 22 side are housed and sandwiched between the pair of light-shielding panel support walls, respectively.
[0031] In this embodiment, the remodeled joinery 1 has a mullion 24 provided on the new frame 2, thereby dividing the inner opening 20 of the new frame 2 into two spaces S1 and S2. This allows it to be remodeled into a continuous window. The remodeled joinery 1, which is remodeled into a continuous window, has multiple individually usable spaces S1 and S2 inside the new frame 2. For example, as shown in this embodiment, some of the spaces can be used as spaces for lighting and ventilation by installing sliding sashes 10, 10 in some of the spaces. In the other spaces not used for lighting and ventilation, it is possible to improve the thermal insulation performance of the bathroom by installing a light-shielding panel 12 with thermal insulation properties. In other words, the remodeled joinery 1 in this embodiment allows for the easy formation of a continuous window with multiple facing materials according to the purpose on the inner circumference side of the existing frame 3.
[0032] The interior space of the newly installed frame 2 is not limited to being divided horizontally by the mullions 24. For example, Figure 4 shows a remodeled door 1A with a transom 25 extending horizontally inside the newly installed frame 2. The wall panels 200 of the bathroom unit are arranged around the interior decorative member 54. The interior opening 20 of the newly installed frame 2 has two spaces S11 and S12 divided vertically by the transom 25. Guide rails 251 and 252 for sliding doors and a guide rail 253 for a screen door are provided on the lower surface of the transom 25, respectively, extending toward the newly installed lower frame 22. Therefore, the space S12 below the transom 25 is used as a space for lighting and ventilation.
[0033] A pair of shading panel support walls 254 are provided on the upper surface of the transom 25. A pair of shading panel support walls 217 are provided on the lower surface of the newly installed upper frame 21. As a result, the upper and lower edges of the shading panel 12 are housed and sandwiched between a pair of shading panel support walls 217 and 254, respectively. Although not shown, a pair of shading panel support walls similar to those described above are also provided on the left and right newly installed vertical frames 23, and the left and right edges of the shading panel 12 are sandwiched between them. Therefore, the space S11 above the transom 25 is used as a space for shading and heat insulation.
[0034] Although not shown in the diagram, the new frame 2 can be further divided into multiple spaces in the vertical, horizontal, and vertical directions by providing both mullions and transoms. In this embodiment, the remodeling fixture 1 is attached to the inner circumference of the existing frame 3 without interposing other members such as intermediate members to adjust the opening width of the inner opening 20 of the new frame 2 between the new frame 2 and the existing frame 3. Therefore, the remodeling fixture 1, which can remodel the opening of the bathroom unit being remodeled for various purposes, can be easily installed.
[0035] The remodeling joinery 1 according to this embodiment provides the following effects. Specifically, the remodeling joinery 1 is attached to an existing frame 3 provided in a building and is remodeled together with a bathroom unit having an opening with a smaller opening width than the inner opening 30 of the existing frame 3. The remodeling joinery 1 has a new frame 2 attached to all four sides of the inner circumference of the existing frame 3, and the new frame 2 has an inner opening 20 that is divided into multiple sections, each of which a facing material is placed, and the new frame 2 is attached facing the inner surface of the existing frame 3. With this, the installation of the new frame 2, which can form multiple types of facing materials on the inner circumference of the existing frame 3, can be completed simply by attaching the new frame 2 to the inner circumference of the existing frame 3. Therefore, the installation work of the remodeling joinery 1 can be simplified.
[0036] In this embodiment, the inner opening 20 of the newly installed frame 2 is divided into multiple sections by at least one of the mullions 24 and the transoms 25. This makes it easy to form a series of windows with multiple facing materials according to the purpose on the inner circumference side of the existing frame 3.
[0037] Although 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. For example, the hollow portion provided in the new frame 2 may be provided in at least one of the new upper frame 21, the new lower frame 22, and the pair of new vertical frames 23, depending on the size of the opening width to be adjusted.
[0038] The facing materials to be placed in each of the divided spaces of the inner space 20 of the newly constructed frame 2 are not limited to shoji screens and light-blocking panels. Various facing materials can be used depending on the purpose. For example, the facing materials may include materials with mirrors, materials with storage shelves, etc.
[0039] The renovation fixtures of this disclosure are not limited to cases where the aforementioned bathroom unit is newly installed, but can be broadly applied when forming an opening with a smaller opening width than the inner opening of the existing frame. [Explanation of symbols]
[0040] 1 Renovated joinery, 10 Shoji (face material), 12 Light-blocking panel (face material), 2 New frame, 20 Inner opening of new frame, 21 New upper frame, 22 New lower frame, 23 New vertical frame, 231a Hollow section, 24 Mullion, 25 Transom, 3 Existing frame, 30 Inner opening of existing frame 30, 31A Inner surface of existing upper frame, 32A Inner surface of existing lower frame, 33A Inner surface of existing vertical frame
Claims
1. A remodeling fixture that can be attached to an existing frame in a building and can form an opening with a width smaller than the inner opening of the existing frame, The existing frame has a new frame that is attached to all four sides of the inner circumference, The newly constructed frame has a hollow section and multiple divided inner openings on the inner circumference side of the hollow section, with facing materials housed in each of the multiple divided inner openings, and the outer surface of the newly constructed frame is attached to the inner surface of the existing frame without any intermediate member being interposed between the newly constructed frame and the existing frame. The hollow portion has a length in the depth direction that covers the entire inner circumference of the existing frame and is positioned facing the inner surface of the existing frame, in the renovation joinery.
2. The remodeled joinery according to claim 1, wherein the inner opening of the newly installed frame is divided into multiple sections by at least one of mullions and transoms.