Inside corner casing

Abstract

To provide an internal corner casing for easily stopping water in a clearance between a fitting (sash or the like) and an external wall even when a window or an entrance is provided close to an internal corner part.SOLUTION: An internal corner casing 10, which is disposed in a clearance S1 formed between a second outer wall 3 and a fitting (e.g. a window sash 6 or the like) that is provided in an opening 5 formed in the vicinity of an internal corner 1 of a first outer wall 2 and projects further than the surface (outdoor side surface) of the first outer wall 2, out of the first outer wall 2 and a second outer wall 3 that constitute the internal corner 1 of a building, includes a main body 11 inserted into a clearance S1 and water stopping means (a covering section 12 and a contact section 13) for preventing water from entering the clearance S1, with the main body 11 and the water stopping means 12, 13 being integrally formed.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an inside corner casing. [Background technology]

[0002] In the past, windows and entrances have been installed close to the inside corner of one of the exterior walls that make up the corner. When a window or entrance is installed close to the inside corner, the fittings (sashes, etc.) that make up the window or entrance and the inside corner casing that covers the inside corner are also installed close to the other exterior wall that makes up the inside corner. For example, Patent Document 1 describes an inside corner cover member (inside corner casing) that covers an inside corner. This inside corner cover member is provided with a backup material 25, and a sealing material 25a is filled in using the backup material 25 as a base (see Figure 5 of Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-115395 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the fixture is installed close to the other exterior wall that makes up the inside corner, the gap between the fixture and the other exterior wall becomes narrow, making it difficult to perform the waterproofing work of filling it with sealant. If windows, entrances, etc. are positioned away from the inside corner to make the waterproofing work easier, the effective area of ​​one of the exterior walls that makes up the inside corner will be narrowed by that amount, which will affect the appearance and interior design.

[0005] The present invention has been made in consideration of the above-mentioned problems, and aims to provide an inside corner casing that makes it easy to stop water leaking in the gap between a fixture (sash, etc.) and an exterior wall, even when a window or entrance is located close to the inside corner. [Means for solving the problem]

[0006] The invention described in claim 1 can be realized, for example, as shown in Figs. 1, 2 and 6, as follows: An inside corner casing (10) is provided in an opening (5) formed in the vicinity of the front inside corner (1) of the first exterior wall (2) and the second exterior wall (3) that constitute the inside corner (1) of the building, and is disposed in a gap (S1) formed between a fitting (window sash (6)) that protrudes beyond the surface of the first exterior wall (2) and the second exterior wall (3), A main body 11 inserted into the gap S1; and a water-stopping means (covering portion 12, contact portion 13) for preventing water from entering the gap S1. The main body 11 and the water stopping means 12, 13 are integrally formed. And, The waterproofing means includes a covering portion 12 extending from the main body portion 11 toward the opposite side of the second outer wall 3, The fixture (window sash 6) includes a protruding plate portion 611 that protrudes from the surface of the first outer wall 2, and a first protruding portion 61a that protrudes from a tip of the protruding plate portion 611 toward the second outer wall 3, The covering portion 12 covers the first protruding portion 61a from the side opposite to the first outer wall 2. It is characterized by:

[0007] According to the invention described in claim 1, the water stopping means 12, 13 for preventing water from entering the gap S1 are formed integrally with the main body 11 that is inserted into the gap S1, so the water stopping means can be provided in the gap S1 simply by inserting the main body 11 into the gap S1. Therefore, even if a window or doorway is installed close to the inside corner 1, water can be easily stopped in the gap S1 between the fitting 6 and the exterior wall 3. In addition, as a water-stopping means, a covering portion 12 is provided which extends from the main body portion 11 toward the opposite side of the second outer wall 3 (the opening 5 side) and covers the first protrusion portion 61a of the fitting 6 from the opposite side of the first outer wall 2, thereby making it possible to reliably stop water in the gap S1 between the fitting 6 and the outer wall 3.

[0010] Claim 2 The invention described in the above can be implemented as follows, as shown in, for example, Figs. 1, 2 and 6: 1 In the inside corner casing 10 described above, The covering portion 12 is characterized by having a protrusion 12a that contacts the first protruding portion 61a from the second outer wall 3 side.

[0011] Claim 2According to the invention described above, the covering portion 12, which is a water-stopping means, has a protrusion 12a that contacts the first protrusion 61a of the fitting 6 from the second outer wall 3 side, so that in addition to reliably stopping water in the gap S1 between the fitting 6 and the outer wall 3, it is also possible to reliably prevent the inside corner casing 10 from shifting in position (shifting in position to the opposite side from the second outer wall 3).

[0012] Claim 3 The invention described in the above can be implemented as follows, as shown in, for example, Figs. 1, 2 and 6: 1 or 2 In the inside corner casing 10 described above, The water stopping means includes an abutment portion 13 extending from the main body portion 11 toward the opposite side of the second outer wall 3, The fixture (window sash 6) is provided with a second protruding portion 61b located closer to the first outer wall 2 than the first protruding portion 61a and protruding from the protruding plate portion 611 toward the second outer wall 3, The second protruding portion 61b has a tip portion bent toward the opposite side from the first outer wall 2, The contact portion 13 is characterized by having a protrusion 13a that contacts the tip end of the second protruding portion 61b from the side opposite to the second outer wall 3.

[0013] Claim 3 According to the invention described in the above, the water stopping means is provided with an abutting portion 13 that extends from the main body portion 11 toward the opposite side to the second exterior wall 3 (the opening 5 side) and comes into contact with the second protruding portion 61b of the fitting 6. In other words, since two water stopping means (covering portion 12, abutting portion 13) are provided, even if the first water stopping means (covering portion 12) is broken through, the second water stopping means (abutting portion 13) can prevent intrusion, making it possible to more reliably stop water in the gap S1 between the fitting 6 and the exterior wall 3. Furthermore, the abutment portion 13, which is a water-stopping means, has a protrusion 13a that contacts the tip of the second protrusion portion 61b from the side opposite the second outer wall 3 (the opening 5 side), so in addition to reliably stopping water in the gap S1 between the building material 6 and the outer wall 3, it is also possible to reliably prevent the inside corner casing 10 from shifting out of position (towards the second outer wall 3).

[0014] Claim 4 The invention described above is, for example, as shown in Figs. 1, 2 and 6, in the inside corner casing 10 described in claim 1, The inside corner casing 10 is provided with a fixing means (hook portion 14) for fixing the inside corner casing 10 to the fitting (window sash 6), The main body 11 and the fixing means 14 are formed integrally.

[0015] Claim 4 According to the invention described in the above, the fixing means 14 for fixing the inside corner casing 10 to the fitting 6 is formed integrally with the main body 11 that is inserted into the gap S1, so that the inside corner casing 10 can be fixed to the fitting 6 simply by inserting the main body 11 into the gap S1. Therefore, even if a window or doorway is installed close to the inside corner 1, it is possible to easily seal off the water in the gap S1 between the fitting 6 and the exterior wall 3.

[0016] Claim 5 The invention described in the above can be implemented as follows, as shown in, for example, Figs. 1, 2 and 6: 4 In the inside corner casing 10 described above, The fixing means includes a hook portion 14 extending from the main body portion 11 toward the first outer wall 2 side, The fixture (window sash 6) has a third protruding portion 61c that protrudes from the surface of the first outer wall 2, The hook portion 14 is characterized by having a protrusion 14a that hooks onto the third protruding portion 61c from the first outer wall 2 side. According to the invention described in claim 5, the fixing means includes a hook portion 14 that extends from the main body 11 toward the first outer wall 2 and hooks onto the third protrusion 61c of the fitting 6, making it possible to securely fix the inside corner casing 10 to the fitting 6. Furthermore, the hook portion 14, which is the fixing means, has a protrusion 14a that hooks onto the third protrusion portion 61c from the first outer wall 2 side, so in addition to securely fixing the inside corner casing 10 to the building fixture 6, it is also possible to reliably prevent the inside corner casing 10 from shifting out of position (shifting in the direction opposite the first outer wall 2).

[0017] The invention described in claim 6 is, for example, as shown in Figs. 1, 2 and 6, An inside corner casing (10) is provided in an opening (5) formed in the vicinity of the front inside corner (1) of the first exterior wall (2) and the second exterior wall (3) that constitute the inside corner (1) of the building, and is disposed in a gap (S1) formed between a fitting (window sash (6)) that protrudes beyond the surface of the first exterior wall (2) and the second exterior wall (3), A main body 11 inserted into the gap S1; a water-stopping means (covering portion 12, contact portion 13) for preventing water from entering the gap S1; and a fixing means (hook portion 14) for fixing the inside corner casing 10 to the fixture (window sash 6), The main body 11 and the water stopping means 12, 13 are integrally formed, The main body 11 and the fixing means 14 are integrally formed, The fixing means includes a hook portion 14 extending from the main body portion 11 toward the first outer wall 2 side, The fixture (window sash 6) has a third protruding portion 61c that protrudes from the surface of the first outer wall 2, The hook portion 14 is characterized by having a protrusion 14a that hooks onto the third protruding portion 61c from the first outer wall 2 side. According to the invention described in claim 6, Since the water stopping means 12, 13 for preventing water from entering the gap S1 are formed integrally with the main body 11 that is inserted into the gap S1, the water stopping means can be provided in the gap S1 simply by inserting the main body 11 into the gap S1. Therefore, even if a window or doorway is installed close to the inside corner 1, water can be easily stopped in the gap S1 between the fitting 6 and the exterior wall 3. Furthermore, since the fixing means 14 for fixing the inside corner casing 10 to the fitting 6 is formed integrally with the main body 11 that is inserted into the gap S1, the inside corner casing 10 can be fixed to the fitting 6 simply by inserting the main body 11 into the gap S1. Therefore, even if a window or doorway is installed close to the inside corner 1, it is possible to easily waterproof the gap S1 between the fitting 6 and the exterior wall 3. Also, As a fixing means, a hook portion 14 is provided which extends from the main body portion 11 toward the first outer wall 2 and hooks onto the third protrusion portion 61c of the fitting 6, so that the inside corner casing 10 can be securely fixed to the fitting 6. Furthermore, the hook portion 14, which is the fixing means, has a protrusion 14a that hooks onto the third protrusion portion 61c from the first outer wall 2 side, so in addition to securely fixing the inside corner casing 10 to the building fixture 6, it is also possible to reliably prevent the inside corner casing 10 from shifting out of position (shifting in the direction opposite the first outer wall 2). [Effects of the Invention]

[0018] According to the present invention, even when a window or entrance is provided close to an inside corner, it is possible to easily stop water from leaking from the gap between a fixture (such as a sash) and an exterior wall. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 2 is a perspective view showing the relationship between the inside corner casing and the first outer wall and the second outer wall. [Figure 2] FIG. 4 is a cross-sectional view showing the mounting structure of the inside corner casing. [Figure 3] 10A to 10C are diagrams illustrating an example of a procedure for installing an inside corner casing. [Figure 4] 10A to 10C are diagrams illustrating an example of a procedure for installing an inside corner casing. [Figure 5] 10A to 10C are diagrams illustrating an example of a procedure for installing an inside corner casing. [Figure 6] 10A and 10B are diagrams showing modified examples of inside corner casings. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are subject to various limitations that are technically preferable for implementing the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Note that the directions in the following embodiments and illustrated examples are set solely for the convenience of explanation.

[0021] In Figure 1, reference numeral 1 denotes an inside corner formed in a corner portion of a building such as a house. This inside corner 1 is composed of a first exterior wall 2 and a second exterior wall 3 that are arranged to intersect with each other and form a right angle in a plan view. In this embodiment, the building is constructed using a panel construction method in which building components such as walls, floors, and roofs are panelized in advance at a factory and then these panels (architectural wall panels, architectural floor panels, etc.) are assembled at the construction site to construct the building. However, this is not limited to this method and the building may also be constructed using conventional frame construction, wall construction, two-by-four construction, etc.

[0022] The first exterior wall 2 and the second exterior wall 3 comprise wooden architectural wall panels having a frame formed by assembling vertical and horizontal core materials and face materials attached to the front and back surfaces of the frame. Furthermore, the first exterior wall 2 comprises an adjusting member 2a made of square timber as a base for adjusting dimensions and for attaching various components, and the adjusting member 2a is interposed between the architectural wall panel that constitutes the first exterior wall 2 and the architectural wall panel that constitutes the second exterior wall 3. Specifically, the adjusting member 2a that constitutes the first exterior wall 2 is fixed to the end (the left end in this embodiment) of the architectural wall panel that constitutes the first exterior wall 2 on the second exterior wall 3 side, and the architectural wall panel that constitutes the first exterior wall 2 and the architectural wall panel that constitutes the second exterior wall 3 are connected via the adjusting member 2a. A moisture-permeable waterproof sheet 4 is attached to the exterior surfaces of the first exterior wall 2 and the second exterior wall 3. A fitting (window sash 6) described below is fixed to the first exterior wall 2 from above this moisture-permeable waterproof sheet 4.

[0023] An opening 5 is formed in the first outer wall 2 so as to be located near the inside corner 1. The opening 5 in this embodiment is used as a window, but is not limited to this and may also be used as an entrance door, a back door, or the like. The opening 5 in this embodiment is a so-called waist-high window, and is provided in the middle to upper part of the first exterior wall 2, at approximately the height of an adult's waist. However, the window is not limited to the waist-high window described above, and may be a bay window, a high window, or the like.

[0024] A window sash 6 is provided in the opening 5. The window sash 6 in this embodiment is a window sash for a waist-high window. The window sash 6 comprises a rectangular sash frame 60 attached to the edge of the opening 5, and a shoji screen (not shown) for closing the opening 5. The shoji screen comprises a shoji frame formed by assembling vertical and horizontal frame members into a rectangular shape, and a rectangular plate of window glass fitted into the inner edge of the shoji frame. The sash frame 60 comprises upper and lower horizontal frame members (not shown) fixed to the upper and lower edges of the opening 5, respectively, and left and right vertical frame members 61 fixed to the left and right edges of the opening 5, respectively. Each frame member (horizontal frame member, vertical frame member 61) that makes up the sash frame 60 has a groove that can accommodate the edge of the shoji screen (shoji screen frame), and the shoji screen can slide along the groove of the horizontal frame member.

[0025] In this embodiment, the window sash 6 is a window sash for a waist-high window, but this is not limitative, and the type of the window sash 6 can be changed as appropriate. That is, the window sash 6 can be changed to a window sash of a waist-high window, a French window, a high window, a ground-level window, a bay window, a corner window, etc. The window sash 6 may also be any of window sashes with an opening and closing method, such as a sliding window, a fixed window, a folding door, a double-hung window, a single-hung window, a double-sliding window, a single-sliding window, a vertical-sliding window, a horizontal-sliding window, an outward-opening window, an inward-opening window, a projection window, a casement window, a casement window, a pivoting window, an awning window, or a louvered window. Furthermore, the fixture provided on the outdoor side (front side) of the edge of the opening 5 in the thickness direction of the first outer wall 2 is not limited to a window (window sash 6) but may be a door (door) or the like. In other words, the fixture frame provided on the edge of the opening 5 is not limited to a sash frame 60 but may be a door frame or the like.

[0026] In addition, an opening frame (decorative frame, fixture frame) 7 that decorates the indoor side of the edge of the opening 5 is fixed to the indoor side (rear side) in the thickness direction of the first exterior wall 2. The opening frame 7 includes, for example, frame materials 7a fixed to the top, bottom, left and right edges of the opening 5, and a casing material 7b that finishes the edges of the opening 5 together with the frame materials 7a. Furthermore, on the indoor side surfaces of the first exterior wall 2 and the second exterior wall 3, gypsum boards 8 are attached as fire-resistant facing materials. Furthermore, an exterior wall material 9 is attached to the surfaces (outdoor side surfaces) of the first exterior wall 2 and the second exterior wall 3.

[0027] The window sash 6 protrudes forward beyond the surface (outdoor side) of the first exterior wall 2. As described above, the opening 5 is formed near the inside corner 1, and therefore the window sash 6 is also provided near the inside corner 1. A gap S1 is formed between the window sash 6 provided near the inside corner 1 in this manner and the second exterior wall 3. Specifically, a gap S1 is formed between one of the left and right vertical frame members 61 that make up the sash frame 60 of the window sash 6 (the left vertical frame member 61 in this embodiment) and the second exterior wall 3.

[0028] The vertical frame member 61 includes a protruding plate portion 611 and a fixing plate portion 612 provided along the height direction (up-down direction) of the vertical frame member 61 from the upper end to the lower end of the vertical frame member 61. The protruding plate portion 611 is a portion of the vertical frame member 61 that protrudes forward beyond the surface (front surface) of the first outer wall 2. The fixing plate portion 612 is a portion of the vertical frame member 61 that is fixed in contact with the surface (front surface) of the first outer wall 2.

[0029] Furthermore, the vertical frame member 61 has a first protruding portion 61a and a second protruding portion 61b that protrude outward from the protruding plate portion 611 (on the opposite side to the opening portion 5). The first protrusion 61a is located at the tip (front end) of the protruding plate portion 611 and is provided along the height direction (up-down direction) of the vertical frame member 61, spanning from the upper end to the lower end of the protruding plate portion 611. The second protruding portion 61b is located rearward (closer to the first exterior wall 2) than the first protruding portion 61a, and is provided along the height direction (vertical direction) of the vertical frame member 61, from the upper end to the lower end of the protruding plate portion 611. The tip of the second protruding portion 61b is a bent portion bent forward (toward the first protruding portion 61a). In other words, the second protruding portion 61b has a substantially L-shaped cross section.

[0030] The vertical frame member 61 also has a third protruding portion 61c that protrudes from the fixing plate portion 612 to the front side (the side opposite to the first outer wall 2) and has a substantially T-shaped cross section. The third protruding portion 61c is located outside the protruding plate portion 611 (on the opposite side to the opening 5), and is provided along the height direction (up-down direction) of the vertical frame member 61, from the upper end to the lower end of the fixing plate portion 612. The third protruding portion 61c protrudes in the same direction as the protruding plate portion 611, and has a shorter protruding dimension than the protruding plate portion 611.

[0031] An inside corner casing (inside corner cover member) 10 is provided in the gap S1 formed between the vertical frame member 61 and the second exterior wall 3 to stop water from entering the gap S1. This makes it possible to prevent water from entering the gap S1 without using a sealant (and a backup material that serves as a base for filling the sealant) used in conventional watertight structures, i.e., without filling a portion of the gap S1 with a sealant.

[0032] The inside corner casing 10 is an extrusion molded product made of metal (for example, aluminum), and includes a main body 11, a covering portion 12 and a contact portion 13 extending from the main body 11 toward the right side (toward the opening 5), and a hook portion 14 and an extension portion 15 extending from the main body 11 toward the rear side (toward the first outer wall 2). The height dimension (vertical length) of the inside corner casing 10 is set to be approximately the same as the height dimension (vertical length) of the vertical frame member 61. In this embodiment, the inside corner casing 10 is formed by extrusion molding, but this is not limited to this, and the inside corner casing 10 may also be formed by bending processing, welding processing, etc.

[0033] The main body 11 includes a front panel portion and a rear panel portion that are arranged substantially parallel to the surface of the first outer wall 2, and a first side panel portion and a second side panel portion that are arranged substantially parallel to the surface of the second outer wall 3. In the main body 11, the rear panel portion is located rearward of the front panel portion (toward the first outer wall 2). In addition, in the main body 11, the second side panel portion is located leftward of the first side panel portion (toward the second outer wall 3).

[0034] The covering portion 12 is a portion of the inside corner casing 10 that is flush with the front panel portion of the main body portion 11, and is provided along the height direction (vertical direction) of the inside corner casing 10, from the upper end to the lower end of the main body portion 11. The covering portion 12 covers the first protruding portion 61a of the vertical frame member 61 from the front, and functions as a water-stopping means for preventing water from entering the gap S1. Specifically, covering portion 12 has protrusion 12a that protrudes toward the rear side (toward first outer wall 2), and its tip is bent toward the rear side (toward first outer wall 2), so that first protrusion 61a fits snugly between the tip of covering portion 12 and protrusion 12a. That is, the tip of covering portion 12 is located in close contact with the base end (right end) of first protrusion 61a from the right side (toward opening 5), and protrusion 12a is located in close contact with the tip (left end) of first protrusion 61a from the left side (toward second outer wall 3). Therefore, engagement between covering portion 12 and vertical frame member 61 (particularly first protrusion 61a) prevents water from entering gap S1 and prevents misalignment of inside corner casing 10 in the left-right direction.

[0035] The contact portion 13 is a portion of the inside corner casing 10 that is located rearward (toward the first exterior wall 2) of the covering portion 12, and is provided along the height direction (vertical direction) of the inside corner casing 10, from the upper end to the lower end of the main body portion 11. The contact portion 13 contacts the second protruding portion 61b of the vertical frame member 61 from the right, and functions as a water stop means for preventing water from entering the gap S1. Specifically, the abutment portion 13 has a projection 13a that projects toward the rear side (toward the first outer wall 2), and the projection 13a is provided in a position that closely contacts the tip end (bent portion) of the second protruding portion 61b from the right side (toward the opening 5). Therefore, engagement between the abutment portion 13 and the vertical frame member 61 (particularly the second protruding portion 61b) prevents water from entering the gap S1 and prevents the inside corner casing 10 from shifting position to the left.

[0036] Furthermore, the protruding dimension (length in the left-right direction) of the abutting portion 13 is set to a dimension that allows the tip (right end) of the abutting portion 13 to come into contact with the protruding plate portion 611 of the vertical frame member 61. This prevents the inside corner casing 10 from shifting to the right. In other words, by engaging the abutment portion 13 with the vertical frame material 61 (particularly the second protruding portion 61b and the protruding plate portion 611), it is possible to prevent water from entering the gap S1 and to prevent the inside corner casing 10 from shifting in position in the left-right direction.

[0037] Hook portion 14 is a portion of inside corner casing 10 that is flush with the first side panel portion of main body 11, and is provided along the height direction (vertical direction) of inside corner casing 10, from the upper end to the lower end of main body 11. Hook portion 14 hooks onto third protruding portion 61c of vertical frame member 61 from behind, thereby functioning as a water-stopping means for preventing water from entering gap S1, and also as a fixing means for fixing inside corner casing 10 to the fixture (window sash 6). Specifically, hook portion 14 has a protrusion (return portion) 14a that protrudes to the right side (toward opening 5), and protrusion 14a is provided in a position that closely contacts the rear side (first outer wall 2 side) of the head of third protrusion portion 61c, which has a generally T-shaped cross section. Therefore, engagement between hook portion 14 and vertical frame member 61 (particularly third protrusion portion 61c) prevents water from entering gap S1 and prevents inside corner casing 10 from shifting forward.

[0038] Furthermore, the protruding dimension (length in the front-to-rear direction) of the hook portion 14 is set to a dimension that allows the tip (rear end) of the hook portion 14 to contact the fixing plate portion 612 of the vertical frame material 61. This prevents the inside corner casing 10 from shifting backward. That is, the engagement between the hook portion 14 and the vertical frame member 61 (particularly the third protrusion portion 61c and the fixing plate portion 612) prevents water from entering the gap S1 and also prevents the inside corner casing 10 from shifting in position in the front-to-rear direction. Furthermore, with the covering portion 12 (and the abutting portion 13) and the vertical frame member 61 engaged, the engagement between the hook portion 14 and the vertical frame member 61 fixes the inside corner casing 10 to the vertical frame member 61.

[0039] The extension portion 15 is a portion of the inside corner casing 10 that is flush with the second side panel portion of the main body portion 11, and is provided along the height direction (vertical direction) of the inside corner casing 10, from the upper end to the lower end of the main body portion 11. The protruding dimension (length in the front-to-rear direction) of the extension portion 15 is set to be approximately the same as the protruding dimension of the hook portion 14. Furthermore, the width dimension (dimension in the left-right direction) of the inside corner casing 10 is set to a dimension that forms a gap between the inside corner casing 10 and the second outer wall 3. This makes it easier to install the inside corner casing 10 in the gap S1 (to fix the inside corner casing 10 to the vertical frame material 61).

[0040] Here, the second protruding portion 61b of the vertical frame member 61 is provided to support a sealing material used in a conventional waterproof structure (for example, the sealing material 25a of Patent Document 1). Specifically, the first protruding portion 61a and the second protruding portion 61b of the vertical frame member 61 are provided on the existing vertical frame member, and in the conventional waterproof structure, the sealing material is provided in a state where it is sandwiched between the first protruding portion 61a and the second protruding portion 61b. In addition, the third protruding portion 61c of the vertical frame member 61 is also provided on the existing vertical frame member. That is, inside corner casing 10 of this embodiment is configured to utilize the structure of the existing vertical frame material to prevent water from entering gap S1. Furthermore, inside corner casing 10 of this embodiment is configured to utilize the structure of the existing vertical frame material to allow inside corner casing 10 to be attached to gap S1 (inside corner casing 10 can be fixed to vertical frame material 61) without using fixing materials such as screws.

[0041] The exterior wall material 9 attached to the second exterior wall 3 has a first exterior wall material 91 and a second exterior wall material 92 adjacent thereto. A joint (gap) is formed between the first exterior wall material 91, which is located closer to the second exterior wall 3 than the second exterior wall material 92, and the front panel portion of the main body 11 of the inside corner casing 10, and a backup material 9a is provided in this joint. A sealing material 9b is filled on the surface side of the backup material 9a (the side opposite to the second exterior wall 3).

[0042] Next, an example of a procedure for constructing the inside corner casing 10 having the above-described configuration will be described with reference to FIGS. First, at least the vertical frame member 61 on the inside corner 1 side (in this embodiment, the left vertical frame member 61) of the frame members (upper and lower horizontal frame members and left and right vertical frame members 61) that make up the sash frame 60 of the window sash 6 is provided in advance in the opening 5 formed in the first exterior wall 2. That is, at this point, a gap S1 is formed between the second exterior wall 3 and the vertical frame member 61 on the inside corner 1 side.

[0043] Next, the inside corner casing 10 is fixed to the vertical frame material 61 on the inside corner portion 1 side (second outer wall 3 side). Specifically, first, as shown in FIG. 3, the inside corner casing 10 is inserted between the protruding plate portion 611 of the vertical frame member 61 and the second outer wall 3. Next, as shown in Figure 4, with the abutment portion 13 of the inside corner casing 10 positioned between the first protrusion 61a and the second protrusion 61b of the vertical frame material 61, the inside corner casing 10 is moved toward the protruding plate portion 611 until the tip of the abutment portion 13 contacts the protruding plate portion 611. Next, while the tip of the abutment portion 13 remains in contact with the protruding plate portion 611, the inside corner casing 10 is moved toward the first outer wall 2 (the main body portion 11 of the inside corner casing 10 is inserted into the gap S1) until the hook portion 14 of the inside corner casing 10 is hooked onto the third protruding portion 61c of the vertical frame material 61 (until the state shown in Figure 2 is reached).

[0044] When the inside corner casing 10 is moved toward the first outer wall 2, as the inside corner casing 10 approaches the first outer wall 2, the protrusion 14a of the hook portion 14 is pressed by the head of the third protrusion 61c, causing the hook portion 14 to bend, as shown in Fig. 5. When the inside corner casing 10 approaches the first outer wall 2 further, the bending of the hook portion 14 is released and the hook portion 14 returns to its original state, as shown in Fig. 2, so that the hook portion 14 is hooked on the third protrusion 61c (specifically, the protrusion 14a of the hook portion 14 is hooked on the head of the third protrusion 61c), and the tip of the hook portion 14 comes into contact with the fixing plate portion 612. Furthermore, when the hook portion 14 is hooked onto the third protrusion 61c, the covering portion 12 of the inside corner casing 10 covers the first protrusion 61a from the side opposite the first outer wall 2, and the protrusion 13a of the abutment portion 13 contacts the tip portion (bent portion) of the second protrusion 61b from the side opposite the second outer wall 3.

[0045] Therefore, when the main body 11 is inserted into the gap S1 until the hook portion 14 catches on the third protrusion 61c, the inside corner casing 10 is fixed to the vertical frame material 61 in a state where the covering portion 12 and the first protrusion 61a, the abutment portion 13 and the second protrusion 61b, and the hook portion 14 and the third protrusion 61c are in close contact (a state that prevents water from entering the gap S1). In this way, the inside corner casing 10 of this embodiment has the main body portion 11, covering portion 12, abutment portion 13 and hook portion 14 formed integrally, so that the installation work of the water-stopping means and fixing means is completed at the same time as inserting the main body portion 11 into the gap S1, resulting in high construction efficiency.

[0046] After the inside corner casing 10 is fixed to the vertical frame member 61, the upper and lower ends of the inside corner casing 10 are appropriately covered with a predetermined cover member (or the upper and lower horizontal frame members of the window sash 6, etc.) to prevent water from entering the gap S1 from the upper or lower end sides of the inside corner casing 10. The predetermined cover member may be provided integrally with the inside corner casing 10. Thereafter, the exterior wall materials 91, 92 are attached to the second exterior wall 3. Next, a backup material 9a is inserted into the joint (gap) between the exterior wall material 91 on the inside (second exterior wall 3 side) and the inside corner casing 10. Next, a sealant 9b is filled into the joint (gap) between the exterior wall material 92 on the outside and the inside corner casing 10 using the backup material 9a as a base. In this manner, the inside corner casing 10 can be installed in the gap S1. By providing the inside corner casing 10 in the gap S1 in this manner, it is possible to maintain a continuous watertight line from the first outer wall 2 where the opening 5 is located to the second outer wall 3 without interruption.

[0047] As described above, the width dimension (left-right dimension) of the inside corner casing 10 is set to a dimension that will form a gap between the inside corner casing 10 and the second outer wall 3. In other words, the width dimension of the inside corner casing 10 (the width dimension of the main body 11) can be changed as appropriate depending on the width of the gap S1 that will be formed between the window sash 6 and the second outer wall 3. Specifically, as shown in FIG. 6, for example, an inside corner casing 10 with a shorter width dimension of the main body 11 (an inside corner casing 10 with a shorter width dimension of the main body 11 than the inside corner casing 10 shown in FIG. 2) will be attached to a narrow gap S1 (a gap S1 narrower than the gap S1 shown in FIG. 2).

[0048] According to the above embodiment (including the modified examples), the following excellent effects are achieved. The inside corner casing 10 of the embodiment is an inside corner casing that is provided in an opening 5 formed near the inside corner 1 of the first exterior wall 2, of the first exterior wall 2 and second exterior wall 3 that constitute the inside corner 1 of a building, and is placed in a gap S1 formed between the second exterior wall 3 and a fixture (such as a window sash 6) that protrudes beyond the surface (outdoor side) of the first exterior wall 2, and is provided with a main body 11 that is inserted into the gap S1 and water-stopping means (covering portion 12, abutment portion 13) for preventing water from entering the gap S1, and the main body 11 and the water-stopping means 12, 13 are formed integrally.

[0049] In this way, the water stopping means 12, 13 for preventing water from entering the gap S1 are formed integrally with the main body 11 that is inserted into the gap S1, so the water stopping means can be provided in the gap S1 simply by inserting the main body 11 into the gap S1. Therefore, even if a window or doorway is installed close to the inside corner 1, water can be easily stopped in the gap S1 between the fittings (window sash 6, etc.) and the exterior wall 3.

[0050] In addition, the inside corner casing 10 of the embodiment has a covering portion 12 extending from the main body portion 11 toward the opposite side of the second outer wall 3 (toward the opening 5) as a water-stopping means, and the building fixture (window sash 6, etc.) has a protruding plate portion 611 that protrudes beyond the surface (outdoor side) of the first outer wall 2, and a first protruding portion 61a that protrudes from the tip of the protruding plate portion 611 toward the second outer wall 3, and the covering portion 12 can be configured to cover the first protruding portion 61a from the opposite side of the first outer wall 2.

[0051] By configuring it in this manner, a covering portion 12 is provided as a water-stopping means, extending from the main body portion 11 toward the opposite side of the second outer wall 3 (the opening 5 side) and covering the first protrusion portion 61a of the fixture (window sash 6, etc.) from the opposite side of the first outer wall 2, thereby making it possible to reliably stop water in the gap S1 between the fixture (window sash 6, etc.) and the outer wall 3.

[0052] Furthermore, in the inside corner casing 10 of the embodiment, the covering portion 12 can be configured to have a protrusion 12a that contacts the first protruding portion 61a from the second outer wall 3 side.

[0053] By configuring it in this manner, the covering portion 12, which is the water-stopping means, has a protrusion 12a that contacts the first protrusion 61a of the fixture (window sash 6, etc.) from the second exterior wall 3 side, so that in addition to reliably stopping water in the gap S1 between the fixture (window sash 6, etc.) and the exterior wall 3, it is also possible to reliably prevent the inside corner casing 10 from shifting out of position (shifting to the opposite side from the second exterior wall 3).

[0054] In addition, the inside corner casing 10 of the embodiment has, as a water-stopping means, an abutment portion 13 extending from the main body portion 11 toward the opposite side of the second outer wall 3, and the building fixture (window sash 6, etc.) is positioned closer to the first outer wall 2 than the first protrusion portion 61a and has a second protrusion portion 61b protruding from the protruding plate portion 611 toward the second outer wall 3, the tip of the second protrusion portion 61b being bent toward the opposite side of the first outer wall 2, and the abutment portion 13 can be configured to have a protrusion 13a that contacts the tip of the second protrusion portion 61b from the opposite side of the second outer wall 3.

[0055] By configuring it in this way, the water stopping means is provided with an abutting portion 13 that extends from the main body portion 11 toward the opposite side from the second exterior wall 3 (the opening 5 side) and comes into contact with the second protruding portion 61b of the fitting 6. In other words, since two water stopping means (covering portion 12, abutting portion 13) are provided, even if the first water stopping means (covering portion 12) is broken through, the second water stopping means (abutting portion 13) can prevent intrusion, making it possible to more reliably stop water in the gap S1 between the fitting (window sash 6, etc.) and the exterior wall 3. Furthermore, the abutment portion 13, which is a water-stopping means, has a protrusion 13a that contacts the tip of the second protrusion portion 61b from the side opposite the second outer wall 3 (the opening 5 side), so in addition to reliably stopping water in the gap S1 between the fixture (window sash 6, etc.) and the outer wall 3, it is also possible to reliably prevent the inside corner casing 10 from shifting out of position (towards the second outer wall 3).

[0056] In addition, the inside corner casing 10 of the embodiment is provided with a fixing means (hook portion 14) for fixing the inside corner casing 10 to a fixture (such as a window sash 6), and can be configured so that the main body portion 11 and the fixing means 14 are integrally formed.

[0057] With this configuration, fixing means 14 for fixing inside corner casing 10 to the fixture is formed integrally with main body 11 that is inserted into gap S1, so inside corner casing 10 can be fixed to the fixture simply by inserting main body 11 into gap S1. Therefore, even if a window or doorway is installed close to inside corner 1, it is possible to easily seal off water in gap S1 between the fixture (window sash 6, etc.) and exterior wall 3. For example, the inside corner cover member of Patent Document 1 includes a base portion 22 for fixing the inside corner cover member to the second outer wall, and an upper plate portion 23d and a lower plate portion 23e for positioning the inside corner cover member relative to the second outer wall, and furthermore, because fixing materials such as screws are used to fix the inside corner cover member (see Figure 5 of Patent Document 1), the number of parts is large and the work of attaching the inside corner cover member may be difficult.In contrast, the inside corner casing 10 of the embodiment has a main body portion 11 and fixing means 14 formed integrally, and the inside corner casing 10 can be fixed simply by inserting the main body portion 11 into the gap S1, making the work of attaching the inside corner cover member easy.

[0058] In addition, the inside corner casing 10 of the embodiment has a hook portion 14 extending from the main body portion 11 toward the first outer wall 2 side as a fixing means, and the building fixture (window sash 6, etc.) has a third protrusion portion 61c that protrudes beyond the surface (outdoor side) of the first outer wall 2, and the hook portion 14 can be configured to have a protrusion 14a that hooks onto the third protrusion portion 61c from the first outer wall 2 side.

[0059] By configuring it in this manner, the fixing means is provided with a hook portion 14 that extends from the main body 11 toward the first exterior wall 2 and hooks onto the third protrusion 61c of the fixture (such as the window sash 6), making it possible to securely fix the inside corner casing 10 to the fixture (such as the window sash 6). Furthermore, the hook portion 14, which is the fixing means, has a protrusion 14a that hooks onto the third protrusion portion 61c from the first outer wall 2 side, so in addition to securely fixing the inside corner casing 10 to the fixture (such as the window sash 6), it is also possible to reliably prevent the inside corner casing 10 from shifting out of position (towards the opposite side from the first outer wall 2).

[0060] The first water blocking means is not limited to the covering portion 12, as long as it is a means capable of preventing water from entering the gap S1. Furthermore, the second water blocking means is not limited to the contact portion 13, as long as it is a means capable of preventing water from entering the gap S1. Furthermore, although the inside corner casing 10 in the embodiment is provided with multiple water stopping means, this is not limited to this, and the number of water stopping means provided in the inside corner casing 10 may be multiple or may be one. Furthermore, the vertical frame material 61 may not be provided with the second protruding portion 61b, like the window frame portion of the cited document 1 (see FIG. 5 of the cited document 1). Furthermore, the fixing means is not limited to the hook portion 14, as long as it is a means capable of fixing the inside corner casing 10 to a fixture (such as the window sash 6). [Explanation of symbols]

[0061] 1 Inside corner 2 First outer wall 3 Second outer wall 5 Opening 6 Window sash (doors and windows) 10 Inside corner casing 11 Main body 12 Covering part (water stopping means) 12a protrusion 13 Contact part (water stop means) 13a protrusion 14 Hook portion (fixing means) 14a protrusion 61a First protrusion 61b Second protrusion 61c Third protrusion 611 Projecting plate part S1 Gap

Claims

1. An inside corner casing is provided in an opening formed in the vicinity of the front corner of a first exterior wall of a first exterior wall and a second exterior wall that constitute an inside corner of a building, and is arranged in a gap formed between a fitting that protrudes from the surface of the first exterior wall and the second exterior wall, a main body portion inserted into the gap; and a water blocking means for preventing water from entering the gap. The main body and the water stopping means are integrally formed, The water stopping means includes a covering portion extending from the main body portion toward an opposite side to the second outer wall, The fixture includes a protruding plate portion protruding from a surface of the first outer wall and a first protruding portion protruding from a tip of the protruding plate portion toward the second outer wall, The inside corner casing is characterized in that the covering portion covers the first protruding portion from the side opposite the first outer wall.

2. The inside corner casing according to claim 1, The inside corner casing is characterized in that the covering portion has a protrusion that contacts the first protruding portion from the second outer wall side.

3. The inside corner casing according to claim 1 or 2, The water stopping means includes an abutment portion extending from the main body portion toward an opposite side to the second outer wall, The fixture is provided with a second protruding portion located closer to the first outer wall than the first protruding portion and protruding from the protruding plate portion toward the second outer wall, a tip end of the second protruding portion bent toward an opposite side to the first outer wall, The inside corner casing is characterized in that the abutment portion has a protrusion that contacts the tip of the second protruding portion from the opposite side to the second outer wall.

4. The inside corner casing according to claim 1, A fixing means for fixing the inside corner casing to the building material is provided, An inside corner casing, characterized in that the main body and the fixing means are integrally formed.

5. The inside corner casing according to claim 4, The fixing means includes a hook portion extending from the main body portion toward the first outer wall side, The fitting includes a third protruding portion protruding from a surface of the first exterior wall, The inside corner casing is characterized in that the hook portion has a protrusion that hooks onto the third protrusion portion from the first outer wall side.

6. An inside corner casing that is provided in an opening formed near the front corner of a first exterior wall of a first exterior wall and a second exterior wall that form an inside corner of a building, and is placed in a gap formed between a fitting that protrudes beyond the surface of the first exterior wall and the second exterior wall, a main body portion inserted into the gap; a water blocking means for preventing water from entering the gap; and a fixing means for fixing the inside corner casing to the building material, The main body and the water stopping means are integrally formed, The main body and the fixing means are integrally formed, The fixing means includes a hook portion extending from the main body portion toward the first outer wall side, The fitting includes a third protruding portion protruding from a surface of the first exterior wall, The inside corner casing is characterized in that the hook portion has a protrusion that hooks onto the third protrusion portion from the first outer wall side.

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