Building materials and their construction methods

Abstract

To provide a fitting which can be applied to existing frames of various structures and states and can obtain higher waterproof performance, and to provide a construction method therefor.SOLUTION: A fitting 10 is constituted by installing a new frame 16 for remodeling on an inner periphery of an existing frame 14. The fitting 10 includes: a waterproof tape 54 stuck to an existing sill 14b of the existing frame 14; and a waterproof sheet 52 bonded to the waterproof tape 54 stuck to the existing sill 14b and arranged over a new sill 16b of the new frame 16. A sticking surface of the waterproof tape 54 has self-fusion properties, and the existing sill 14b has a member mounting convex part 14bc having a convex shape for mounting an accessory on a surface to which the waterproof tape 54 is stuck. The waterproof tape 54 is provided so as to cover the member mounting convex part 14bc.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a fitting constructed by installing a new frame for renovation around the inner periphery of an existing frame, and to a method for installing the fitting. [Background technology]

[0002] When renovating fixtures that are already installed in a building, one method is to leave the existing frame in place and install a new frame around its inner periphery. This method of renovation eliminates the need to remove the existing frame, shortening the construction period and reducing renovation costs. The connection between the existing frame and the new frame needs to be waterproofed. To achieve a waterproof structure, wet sealant may be used, but attention must be paid to the amount of sealant, dripping, and curing, which requires skill and time for construction.

[0003] In response to this, the applicant has proposed in Patent Document 1 that a waterproof sheet be attached to the existing frame and the new frame with double-sided tape, etc. Such a waterproof sheet allows for easy construction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2017-101472 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, since existing frames are not usually designed to accommodate new frames, depending on the structure and condition of the existing frame surface, it may not be suitable for attaching a waterproof sheet. Also, in high-rise buildings such as condominiums, higher waterproof performance may be required.

[0006] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a fitting and an installation method thereof that can be applied to existing frames of various structures and conditions, and that can achieve even higher waterproofing performance. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the objectives, the fitting of the present invention is a fitting constructed by installing a new frame for renovation around the inner periphery of an existing frame, and is characterized in that it comprises a waterproof tape affixed to the existing frame material of the existing frame, and a waterproof sheet that is adhered to the waterproof tape affixed to the existing frame material and is further placed across the new frame material of the new frame, and the attachment surface of the waterproof tape has self-adhesive properties.

[0008] In addition, the method of installing fixtures according to the present invention is a method of installing fixtures by installing a new frame for renovation around the inner periphery of an existing frame, and is characterized by having the steps of attaching a waterproof tape having a self-adhesive material on its attachment surface to the existing frame material of the existing frame, installing the new frame around the inner periphery of the existing frame, and adhering a waterproof sheet to each of the waterproof tape and the new frame material of the new frame. Effect of the Invention

[0009] According to the fittings and the construction method of the present invention, waterproof performance is obtained by attaching waterproof tape between the existing frame material and the new frame material. In addition, the existing frame material is attached with waterproof tape having self-adhesive properties, and the waterproof tape is attached on top of that, so a double waterproofing method is taken and an even higher waterproofing performance is obtained. Furthermore, the waterproof tape fuses adjacent pieces due to its self-adhesive properties, and even if the surface to which it is attached is not flat, it has high adhesion and fills gaps. Therefore, the fittings and the construction method of the present invention can be applied to existing frames of various structures and conditions. [Brief description of the drawings]

[0010] [Figure 1]FIG. 1 is a vertical cross-sectional view of a fitting according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view of a fitting according to an embodiment of the present invention. [Diagram 3] An enlarged vertical cross-sectional view of the existing lower frame, the new lower frame and their surrounding areas. [Figure 4] FIG. 2 is an enlarged schematic vertical cross-sectional view of an interior wall portion. [Diagram 5] An enlarged vertical cross-sectional view of the existing side frame, the new side frame and their surrounding areas. [Figure 6] 1 is a flowchart showing a fitting installation method according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of a fitting and a method for installing the fitting according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiment.

[0012] Fig. 1 is a vertical cross-sectional view of a fitting 10 according to an embodiment of the present invention. Fig. 2 is a horizontal cross-sectional view of the fitting 10. First, the fitting 10 will be described. The fitting 10 has a new frame 16 attached to it while leaving an existing frame 14 in place. The existing frame 14 is not particularly used in the fitting 10, but not removing it can reduce construction costs.

[0013] The fitting 10 comprises a structure 12, an existing frame 14, a new frame 16, sliding paper screens 18, 20, and a screen door 22. The structure 12 is rectangular with an upper edge 12a, a lower edge 12b, and left and right side edges 12c, and forms an opening 12d. The structure 12 is made of, for example, wood or concrete. The existing frame 14 and the new frame 16 are extruded shapes made of metal such as aluminum alloy, and are configured so that the entire longitudinal length of each frame has a substantially uniform cross-sectional shape.

[0014] In this application, the "visible direction" refers to the indoor / outdoor direction of the fitting 10, that is, the direction from indoors to outdoors or the opposite direction (the direction shown by the arrow Z in the figure). The "visible surface" refers to a surface that extends along the visible direction. The "visible direction" is the direction perpendicular to the visible direction, and in the case of the side edge 12c that is long in the vertical direction, it refers to the left-right direction perpendicular to the longitudinal direction (the direction shown by the arrow X in the figure), and in the case of the upper edge 12a and lower edge 12b that are long in the horizontal direction, it refers to the up-down direction perpendicular to the longitudinal direction (the direction shown by the arrow Y in the figure). The "visible surface" refers to a surface that is along the visible direction.

[0015] The upper edge 12a has a main material 12aa and an existing frame 12ab, which is a secondary material. The side edge 12c has a main material 12ca and an existing frame 12cb, which is a secondary material. The existing frame 14 is rectangular and has an existing upper frame 14a, an existing lower frame (existing frame material) 14b, and existing side frames 14c on the left and right. The existing upper frame 14a, the existing lower frame 14b, and the existing side frame 14c are provided on the inner peripheral side projection surfaces of the main material 12aa, the lower edge 12b, and the main material 12ca of the upper edge 12a. The existing upper frame 14a has a fin 26a that forms the interior facing surface, two rails 26b, 26c, and a fin 26d that forms the exterior facing surface, which are arranged in the projection direction. The fin 26a abuts against the exterior facing surface of the existing frame 12ab. The fin 26a protrudes slightly inward from the existing frame 12ab, and the fins 26a and 26d cover the rails 26b and 26c so that they are not visible. The rails 26b and 26c have the same length of protrusion into the frame.

[0016] The new frame 16 is rectangular and has a new upper frame 16a, a new lower frame (new frame material) 16b, and left and right new side frames 16c. The new frame 16 is provided on the inner periphery of the existing frame 14, and the new upper frame 16a is provided with a fin 28a that forms the interior sighting surface, and three rails 28b, 28c, and 28d lined up in the projection direction. The fin 28a is the part of the new upper frame 16a that is provided closest to the interior and protrudes to the inner periphery. The fin 26d forms the exterior sighting surface. The new lower frame 16b is provided with three rails 30a, 30b, and 30c lined up in the projection direction.

[0017] The shoji screen 18 is an outer shoji screen, and is slidably mounted by an upper rail 28c and a lower rail 30b. The shoji screen 20 is an inner shoji screen, and is slidably mounted by an upper rail 28b and a lower rail 30a. The screen door 22 is disposed on the outside of the shoji screen 18, and is slidably mounted by an upper rail 28d and a lower rail 30c. One of the visible surfaces of the newly installed side frames 16c serves as a door stopper for the door edge of the shoji screen 18, and the other visible surface serves as a door stopper for the door edge of the shoji screen 20. The end sides of the shoji screens 18, 20 serve as meeting points.

[0018] In this way, the fitting 10 is a sliding window with two shoji screens 18, 20 that can be slid, but it may be configured as a single sliding window with one of the shoji screens 20 set into the new frame 16, or it may be configured as a sliding door with three or more shoji screens that can be slid. The number of shoji screens installed can be changed as appropriate. The shoji screens 18, 20 each have two pieces of glass and are thick in the front direction. The new frame 16 is compatible with these thick shoji screens 18, 20, and its front direction dimension is larger than that of the existing frame 14.

[0019] The existing upper frame 14a of the existing frame 14 and the new upper frame 16a of the new frame 16 are fixed via a first upper attachment 34, a second upper attachment 36, and a third upper attachment 38. Of these, the first upper attachment 34 and the second upper attachment 36 are used in combination. The existing lower frame 14b and the new lower frame 16b are fixed via a lower attachment 42. The existing side frame 14c and the new side frame 16c are fixed via a first side attachment 44, a second side attachment 46, and a third side attachment 47. A spacer 50 is provided between the first upper attachment 34 and the second upper attachment 36.

[0020] The fitting 10 is provided with inner frames 40, 48, and 49. The inner frame 40 covers at least a portion of the interior facing surface of the existing upper frame 14a and the new upper frame 16a. The inner frame 48 covers at least a portion of the interior facing surface of the existing side frame 14c and the new side frame 16c. The inner frame 49 covers at least a portion of the interior facing surface of the existing bottom frame 14b and the new bottom frame 16b.

[0021] In the fitting 10, a waterproof sheet 52 is provided around the entire periphery between the existing frame 14 and the new frame 16. The waterproof sheet 52 is adhered to the frame material surface of the existing frame 14 and the frame material surface of the new frame 16 with a waterproof double-sided tape or the like. As the waterproof sheet 52, one having a function of blocking the through holes by swelling with a polymer absorbent that absorbs water that tries to seep in through the through holes or the like is preferably used. The waterproof sheet 52 has high flexibility and is easy to install.

[0022] In addition, in the fitting 10, the waterproof sheet 52 is attached to the adhesive surface of the existing sill 14b with the waterproof tape 54 interposed therebetween. That is, the waterproof tape 54 is attached to the existing sill 14b, and the waterproof sheet 52 is attached to the existing sill 14b via the waterproof tape 54. The waterproof sheet 52 and the waterproof tape 54 are thin, but are shown as thick in each drawing to make them easy to distinguish.

[0023] Next, the fixing portion between the existing lower frame 14b and the new lower frame 16b will be described in more detail. Fig. 3 is an enlarged vertical cross-sectional view of the existing lower frame 14b, the new lower frame 16b and their surroundings. Fig. 4 is an enlarged schematic vertical cross-sectional view of the indoor wall portion 14bb.

[0024] As shown in FIG. 3, the interior side portion of the existing lower frame 14b is aligned with the existing frame 12ba, and has an inner circumferential wall portion 14ba forming an inner peripheral side visible surface, and an interior wall portion 14bb extending from the end of the inner circumferential wall portion 14ba to the outer peripheral side and forming an interior side visible surface. The exterior side surface of the interior wall portion 14bb is provided with a member mounting protrusion (protrusion) 14bc having a convex shape for mounting accessories. The accessories are, for example, packing and fireproof material. The accessories are removed during construction to install the new frame 16. In this embodiment, the member mounting protrusion 14bc is illustrated as a pocket-shaped recess with a slightly narrowed opening, but may have other convex shapes. Note that the interior wall portion 14bb may not necessarily be flat due to deformation due to aging deterioration, etc., even if there is no structural protrusion such as the member mounting protrusion 14bc.

[0025] The indoor end of the new lower frame 16b protrudes and forms an outer peripheral side wall portion 16ba that forms the visible surface. The lower attachment 42 has an outer peripheral end piece 42a that forms the visible surface and an indoor end piece 42b that forms the visible surface. There is a step between the outer peripheral end piece 42a and the indoor end piece 42b. The outer peripheral end piece 42a of the lower attachment 42 is fixed to the existing lower frame 14b by a screw B1, and the indoor end piece 42b is fixed to the new lower frame 16b by a screw B2.

[0026] The indoor end piece 42b protrudes further into the room than the screw B2, with its inner periphery abutting the outer periphery wall portion 16ba and its outer periphery abutting the inner periphery wall portion 14ba via the waterproof sheet 52 and waterproof tape 54. The indoor end piece 42b, the inner periphery wall portion 14ba, and the existing frame 12ba are fixed together with the screw B3. The outer periphery wall portion 16ba, the indoor end piece 42b, and the existing frame 12ba are fixed together with the screw B4. The screws B3 and B4 are countersunk screws and do not have protruding heads.

[0027] The adhesive surface of the waterproof tape 54 has self-adhesive properties. Specifically, the adhesive surface of the waterproof tape 54 is provided with a self-adhesive material such as butyl rubber that can deform over time to fill gaps. The self-adhesive material has the property of fusing together at overlapping portions. Polyethylene or the like may be added to the self-adhesive material to prevent excessive deformation. The waterproof tape 54 having such self-adhesive properties has high adhesion, excellent water resistance, moisture resistance, and insulation. The surface of the waterproof tape 54 opposite to the adhesive surface is covered with a foil material. The foil material is, for example, aluminum foil, which does not exude the self-adhesive material and is easy to adhere the waterproof sheet 52 to the surface. The waterproof tape 54 can be used by cutting out the required amount from a commercially available product wound in a roll of a specified width.

[0028] The waterproof tape 54 is provided from the exterior visible surface of the indoor wall portion 14bb to the interior visible surface of the inner peripheral wall portion 14ba. The waterproof tape 54 is provided over the entire longitudinal length of the existing lower frame 14b. It is preferable that the waterproof tape 54 is provided over the entire exterior visible surface of the indoor wall portion 14bb, but if the waterproof tape 54 is provided so as to cover at least the component mounting protrusion 14bc and a predetermined margin, it is possible to prevent a decrease in waterproofness due to the shape of the component mounting protrusion 14bc. Furthermore, the target that the waterproof tape 54 covers may be a structural protrusion other than the component mounting protrusion 14bc.

[0029] Even if the indoor wall portion 14bb does not have any structural protrusions such as component mounting protrusions 14bc, the indoor wall portion 14bb may not be flat depending on the condition, and in order to ensure an even further level of waterproofing, it is preferable to provide a waterproof tape 54 between the indoor wall portion 14bb and the waterproof sheet 52.

[0030] The waterproof sheet 52 is attached to the surface of the waterproof tape 54 on the indoor wall portion 14bb with a waterproof double-sided tape, and covers the waterproof tape 54. In the example shown in Fig. 4, the waterproof tape 54 and the waterproof sheet 52 are set to have the same area (area covering the entire surface of the indoor wall portion 14bb) on the indoor wall portion 14bb. However, depending on the design conditions or construction conditions, the bottom end of the waterproof tape 54 may be exposed from the waterproof sheet 52, or conversely, the bottom end of the waterproof tape 54 may be slightly higher than the bottom end of the waterproof sheet 52.

[0031] The waterproof sheet 52 is folded at the upper end of the indoor wall 14bb and extends indoors along the inner circumferential wall 14ba. The waterproof sheet 52 does not need to be provided with any special adhesive means such as double-sided tape in the portion along the inner circumferential wall 14ba. The waterproof tape 54 is sandwiched between the outer circumferential wall 16ba and the inner circumferential wall 14ba via the waterproof sheet 52 and the indoor end piece 42b of the lower attachment 42 in the portion along the inner circumferential wall 14ba, and is moderately compressed by the screws B3 and B4 being screwed in. This makes the waterproof tape 54 denser and easier to fill gaps, improving waterproofing.

[0032] The waterproof sheet 52 is folded back at the indoor end piece 42b of the lower attachment 42 and the indoor end of the outer peripheral wall portion 16ba of the newly installed lower frame 16b, and extends toward the outdoor side to cover almost the entire inner peripheral surface of the outer peripheral wall portion 16ba. The waterproof sheet 52 is adhered to the inner peripheral surface of the outer peripheral wall portion 16ba with waterproof double-sided tape.

[0033] If the width of the waterproof tape 54 is not enough to cover the above range with one sheet, multiple sheets may be used to cover the area with their ends overlapping as shown in Figure 4. In this case, if the waterproof tape 54 is provided along the longitudinal direction of the existing sill 14b, fewer sheets are sufficient, improving workability. Even if small gaps 54a occur in the areas where the waterproof tapes 54 overlap, the gaps 54a are gradually filled by the self-adhesive properties of the waterproof tape 54, and suitable waterproofing performance is obtained.

[0034] 5 is an enlarged vertical cross-sectional view of the existing side frame 14c, the new side frame 16c, and their surroundings. The existing side frame 14c and the new side frame 16c are provided as a pair on the left and right, but since they have a symmetrical structure, only one of them will be explained.

[0035] As shown in Fig. 5, the existing side frame 14c has an inner peripheral side wall portion 14ca that forms a visible surface. The inner peripheral side wall portion 14ca may not be flat due to deformation due to aging, etc. The indoor side end portion of the new side frame 16c has an outer peripheral side wall portion 16ca that protrudes indoors and forms a visible surface.

[0036] The third side attachment 47 is L-shaped with an exterior end piece 47a forming the visible surface and an interior end piece 47b forming the visible surface. The exterior end piece 47a of the third side attachment 47 is fixed to the interior wall portion 14ca of the existing side frame 14c by a screw B5, and the interior end piece 47b is fixed to the exterior wall portion 16ca of the new side frame 16c by a screw B6. The screw B6 is a countersunk screw and the head does not protrude.

[0037] Waterproof tape 54 is applied to the exterior facing surface of the inner circumferential wall portion 14ca. However, the waterproof tape 54 is only applied to the lower portion of the inner circumferential wall portion 14ca (see the dashed line in FIG. 3). In other words, the waterproof tape 54 is applied from the existing bottom frame 14b to the lower portion of the existing side frame 14c. This makes it possible to prevent rainwater from rising from the lower end portion of the fitting 10 along the surface of the existing side frame 14c and then seeping inside the room.

[0038] The waterproof sheet 52 is adhered to the outdoor surface of the waterproof tape 54 with a waterproof double-sided tape, and the waterproof sheet 52 covers the waterproof tape 54. The waterproof sheet 52 is adhered directly to the inner peripheral side wall portion 14ca in the area where the waterproof tape 54 is not present.

[0039] The waterproof sheet 52 is folded toward the room where it abuts against the new side frame 16c, and extends toward the room along the outer peripheral wall portion 16ca. The waterproof sheet 52 is further folded back at the indoor end of the outer peripheral wall portion 16ca, extends toward the outdoor side, and is adhered to the inner peripheral surface of the outer peripheral wall portion 16ca with waterproof double-sided tape. The waterproof sheet 52 is sandwiched between the inner peripheral end piece 47b of the third side attachment 47 and the outer peripheral wall portion 16ca, and is further tightened by screwing in the screw B6, thereby achieving high waterproofing.

[0040] Fig. 6 is a flow chart of a construction method for attaching a new lower frame 16b to an existing lower frame 14b. As shown in Fig. 6, first, in step S1, waterproof tape 54 is applied to the exterior visible surface of the indoor wall portion 14bb of the existing lower frame 14b and the interior visible surface of the inner peripheral wall portion 14ba. The waterproof tape 54 is applied so as to cover at least the component mounting protrusions 14bc and other non-flat parts. The waterproof tape 54 is applied according to a predetermined usage. The usage means, for example, applying the waterproof tape 54 so that the widths of adjacent waterproof tapes 54 overlap by half while pulling and stretching it.

[0041] In step S2, one end of the waterproof sheet 52 is attached to the surface of the waterproof tape 54 and / or to the exposed portion of the exterior facing surface of the indoor wall portion 14bb with double-sided tape.

[0042] In step S3, the lower attachment 42 is attached to the existing lower frame 14b. As described above, the lower attachment 42 is attached to the existing lower frame 14b with the screws B1 and B3. The lower attachment 42 also clamps the waterproof tape 54 between the indoor end piece 42b and the inner peripheral wall portion 14ba, and is fastened with the screw B3.

[0043] In step S4, the new lower frame 16b is attached to the lower attachment 42. As described above, the new lower frame 16b is attached to the lower attachment 42 by the screws B2 and B4.

[0044] In step S5, the waterproof sheet 52 is folded back at the indoor end piece 42b and the indoor end of the outer peripheral side wall portion 16ba, and the end is adhered to the inner peripheral visible surface of the outer peripheral side wall portion 16ba with double-sided tape.

[0045] In step S6, the end of the waterproof sheet 52 is cut to fit the projected dimension of the outer peripheral side wall portion 16ba. This allows the waterproof sheet 52 to be adjusted to an appropriate length depending on the projected dimension of the outer peripheral side wall portion 16ba and the visible dimension of the indoor wall portion 14bb, which differ from construction site to construction site. After this, the inner frame 49 is attached. The waterproof sheet 52 is hidden by the inner frame 49.

[0046] As described above, according to the fitting 10 and its construction method of the present embodiment, the waterproof tape 54 is adhered between the existing sill 14b and the new sill 16b, so that waterproof performance between them is obtained. In addition, the waterproof tape 54 having self-adhesive properties is applied to the existing sill 14b, and the waterproof sheet 52 is adhered on top of it, so that a double waterproofing means is taken, and even higher waterproof performance is obtained. Furthermore, unlike construction in which a wet sealant is filled, construction using the waterproof sheet 52 and the waterproof tape 54 does not require attention to the filling amount, dripping, curing, etc., and construction can be carried out quickly and easily. Furthermore, the waterproof tape 54 is self-adhesive so that adjacent pieces are fused together, and even if the surface to be pasted is not flat, the gap is filled because of its high adhesion. Therefore, the fitting 10 and its construction method can be applied to existing frames of various structures and conditions.

[0047] In the above example, the existing lower frame 14b has a component mounting protrusion 14bc on the indoor wall portion 14bb, which is the surface to which the waterproof tape 54 is attached, and the waterproof tape 54 is provided to cover the component mounting protrusion 14bc, thereby enhancing the waterproof performance of this portion. Rainwater tends to easily seep in from the lower portion of a building, but the fitting 10 has the waterproof tape 54 attached to the lower portion of the existing lower frame 14b and the existing side frame 14c, so that appropriate waterproofing is possible. Of course, depending on the conditions, the waterproof tape 54 may be attached over the entire length of the existing side frame 14c, or may be further attached to the existing upper frame 14a.

[0048] The present invention is not limited to the above-described embodiment, and can of course be freely modified without departing from the spirit and scope of the present invention.

[0049] The fixture of the present invention is a fixture constructed by installing a new frame for renovation around the inner periphery of an existing frame, and is characterized in that it comprises a waterproof tape affixed to the existing frame material of the existing frame, and a waterproof sheet that is adhered to the waterproof tape affixed to the existing frame material and is further positioned across the new frame material of the new frame, and the attachment surface of the waterproof tape has self-adhesive properties.

[0050] The method of installing fixtures according to the present invention is a method of installing fixtures by installing a new frame for renovation around the inner periphery of an existing frame, and is characterized by having the steps of attaching a waterproof tape having a self-adhesive material on its attachment surface to the existing frame material of the existing frame, installing the new frame around the inner periphery of the existing frame, and adhering a waterproof sheet to each of the waterproof tape and the new frame material of the new frame. Such fittings and their installation methods can be applied to existing frames of various structures and conditions, and further provide higher waterproofing performance.

[0051] The fixture of the present invention is characterized in that the existing frame material has a convex portion on the surface to which the waterproof tape is attached, and the waterproof tape is arranged to cover the convex portion. This makes it possible to prevent deterioration of waterproofing due to the shape of the convex portion.

[0052] The building fixture of the present invention is characterized in that the existing frame material is an existing lower frame, and the new frame material is a new lower frame. Rainwater tends to seep in from the lower parts of a building, but proper waterproofing can be achieved by applying waterproof tape to the existing framing materials.

[0053] The building fixture of the present invention is characterized in that the existing frame materials are an existing bottom frame and existing side frame, the new frame materials are a new bottom frame and new side frame, and the waterproof tape is affixed along the entire longitudinal length of the existing bottom frame and over the lower part of the existing side frame. This prevents rainwater from rising along the surface of the existing side frame and then seeping into the interior of the room.

[0054] The building fixture of the present invention is characterized in that the existing frame material and the new frame material are fixed with screws, and a portion of the waterproof tape is clamped between the existing frame material and the new frame material at the screw-fixed portion. This compresses the waterproof tape, further improving the waterproof performance.

[0055] The building fixture of the present invention is characterized in that the existing frame material and the newly constructed frame material are fixed via an attachment, and the waterproof tape is clamped via the attachment at the location where it is fixed with screws. [Explanation of symbols]

[0056] 10 fittings, 12 framework, 14 existing frame, 14b existing lower frame (existing frame material), 14ba inner periphery side wall, 14bb indoor wall, 14bc component mounting protrusion (protrusion), 14c existing side frame, 16 new frame, 16b new lower frame (new frame material), 16ba outer periphery side wall, 16c new side frame, 42 lower attachment, 42a outer periphery side end piece, 42b indoor side end piece, 47 third side attachment, 52 waterproof sheet, 54 waterproof tape

Claims

1. This is a fixture constructed by installing a new frame for renovation on the inner periphery of an existing frame, A waterproof tape attached to the existing frame material of the existing frame; A waterproof sheet is attached to the waterproof tape attached to the existing frame material and is further arranged across the new frame material of the new frame; Equipped with The waterproof tape has a self-adhesive surface, and a surface opposite to the adhesive surface is covered with a foil material; The waterproof sheet is adhered to the surface with a waterproof double-sided tape.

2. The existing frame material has a convex portion on a surface to which the waterproof tape is attached, The fixture according to claim 1, characterized in that the waterproof tape is provided so as to cover the protruding portion.

3. The fixture according to claim 1 or 2, characterized in that the existing frame material is an existing lower frame, and the new frame material is a new lower frame.

4. The fixture described in claim 1 or 2, characterized in that the existing frame material is an existing bottom frame and existing side frame, the new frame material is a new bottom frame and new side frame, and the waterproof tape is applied along the entire longitudinal length of the existing bottom frame and along the lower part of the existing side frame.

5. The existing frame material and the new frame material are fixed with screws, A fixture as claimed in any one of claims 1 to 4, characterized in that a portion of the waterproof tape is clamped between the existing frame material and the new frame material at the portion where it is fixed with screws.

6. The existing frame material and the new frame material are fixed together via an attachment, The fixture according to claim 5, characterized in that the waterproof tape is clamped via the attachment at the portion where it is fixed with the screws.

7. A method of installing fittings by installing a new frame for renovation on the inner periphery of an existing frame, A step of attaching a waterproof tape having a self-adhesive material on an attachment surface and a surface opposite to the attachment surface covered with a foil material to an existing frame material of the existing frame; A step of installing the new frame on an inner periphery of the existing frame; A step of adhering a waterproof sheet to the waterproof tape and the new frame material of the new frame with a waterproof double-sided tape; A method for installing fittings, comprising the steps of:

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