Building, auxiliary member, and sash construction method

Abstract

To provide a building, an auxiliary member, and a sash construction method which allow the workability of work for fixing a sash in an internal corner part to be improved.SOLUTION: A building 1 has an outer wall 2 including an internal corner part 3. The building 1 includes a sash 10 provided on one of two internal corner surfaces 6 constituting the internal corner part 3, an outer wall mounting structural body 11 provided on the other of the two internal corner surfaces 6, a protruding portion 12 protruding from an end 10a of the sash 10, a spacer 13 provided between the two internal corner surfaces 6, and a screw member 14 attached to the spacer 13 so as to press the protruding portion 12 toward the spacer 13. The screw member 14 is disposed so as to be inclined with respect to the two internal corner surfaces 6 in plane view.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to a building, an auxiliary member, and a sash installation method. [Background technology]

[0002] There is a known method for fixing two sashes to the exterior walls of a building so that the sashes are continuous with each other. In the technique of Patent Document 1, a sash is fixed to each of the two exterior walls that form an inside corner with a screw. The two sashes are arranged so that they appear to be continuous with each other at the inside corner. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-184818 A Summary of the Invention [Problem to be solved by the invention]

[0004] By arranging the two sashes so that their ends are close to each other, the two sashes appear to be continuous. When two sashes are arranged so that their ends are close to each other in an inside corner, the fixing part at the end of one sash may be hidden by the end of the other sash. In this case, it becomes difficult to drive screws into the fixing part at the end of one sash.

[0005] In some cases, a sash is placed on one exterior wall and a shutter pocket is placed on the other exterior wall in a recessed corner. When attempting to place the sash close to the door pocket in a recessed corner, the fixing part on the edge of the sash may be hidden by the edge of the door pocket. In this case, the same problem as above occurs.

[0006] In an inside corner portion, when a sash installed on one exterior wall is positioned close to an exterior wall mounting structure such as a sash or door pocket installed on the other exterior wall, there is room for improvement in the fixing of the sash. [Means for solving the problem]

[0007] (1) A building that solves the above problem is a building having an exterior wall including an inside corner portion, and comprising: a sash provided on one of two inside corner surfaces that constitute the inside corner portion; an exterior wall mounting structure provided on the other of the two inside corner surfaces; a protrusion protruding from an end of the sash; a spacer provided between the two inside corner surfaces; and a screw member driven into the spacer so as to press the protrusion toward the spacer, wherein the screw member is positioned so as to be inclined relative to the two inside corner surfaces in a plan view.

[0008] According to this configuration, the screw members are arranged so as to be inclined with respect to the two inside corner faces, so that the screw members can be driven into the spacer while avoiding the ends of the sash and the ends of the exterior wall mounting structure. This improves the workability of fixing the sash at the inside corner of the building.

[0009] (2) In the building described in (1) above, a water-stopping member is positioned between the two inside corner surfaces so as to be pressed against the protruding portion by the screw member, and the water-stopping member has a water-stopping portion that contacts the protruding portion and the exterior wall mounting structure, and a joint portion that contacts the screw member and to which the water-stopping portion is attached.

[0010] According to this configuration, the water-stopping member can prevent water from entering through the gap between the protrusion and the exterior wall mounting structure.

[0011] (3) In the building described in (1) or (2) above, the sash has an inclined portion that is inclined with respect to the two inside corner faces in a plan view when the sash is installed on one of the two inside corner faces and faces an end of the exterior wall mounting structure, a sealant is filled between the inclined portion and the end of the exterior wall mounting structure, and the inclined portion is configured to be continuous with the protrusion.

[0012] According to this configuration, the sealing material can prevent water from entering through the gap between the end of the sash and the end of the exterior wall mounting structure.

[0013] (4) In a building described in any one of (1) to (3) above, a waterproof sheet is attached to the spacer so that it runs from one of the two inside corner faces, passes through the spacer, and then spans to the other of the two inside corner faces.

[0014] According to this configuration, the waterproof sheet can prevent water from entering the gaps between the two inside corner faces and the spacer.

[0015] (5) In a building described in any one of (1) to (4) above, the exterior wall mounting structure is an additional sash provided separately from the sash, the additional sash has an additional protrusion protruding from an end of the additional sash, and the screw member is driven into the spacer so as to press the additional protrusion toward the spacer.

[0016] According to this configuration, the sash and the additional sash can be fixed to the exterior wall by driving the screw member into the spacer. Since the sash and the additional sash can be fixed to the exterior wall at the same time by the screw member, workability is improved compared to when the sash and the additional sash are fixed separately by screws or the like.

[0017] (6) The auxiliary member that solves the above problem is an auxiliary member that is connected to a sash provided on one of two inside corner faces that constitute an inside corner in a building having an exterior wall that includes an inside corner, and when the auxiliary member is connected to the sash and the sash is provided on one of the two inside corner faces, the auxiliary member has a protrusion that protrudes obliquely from one of the two inside corner faces toward the other of the two inside corner faces in a plan view in a state in which the sash extends, and a connection portion that is connected to an end of the sash.

[0018] According to this configuration, a protrusion can be formed on the sash by connecting the auxiliary member to the end of the sash with the connecting portion. The protrusion of the auxiliary member connected to the end of the sash can be fixed to one of the two inside corner faces by fixing the protrusion of the auxiliary member to the inside corner face of the inside corner portion with a screw member. Since the protrusion protrudes obliquely with respect to the extension direction of the sash, the screw member can be driven in to fix the protrusion while avoiding the end of the exterior wall mounting structure provided on the other of the two inside corner faces in the inside corner portion. Therefore, the auxiliary member can improve the workability of fixing the sash at the inside corner portion.

[0019] (7) A sash construction method that solves the above-mentioned problems is a sash construction method for fixing a sash to at least one of two inside corner surfaces that constitute an inside corner in a building having an exterior wall including the inside corner, the method including the steps of attaching a spacer between the two inside corner surfaces, positioning an end of the sash having a protrusion on one of the two inside corner surfaces, and driving a screw member into the spacer at an angle to the two inside corner surfaces so as to press the protrusion toward the spacer in a plan view.

[0020] According to this configuration, the screw member is driven into the two inside corner faces at an angle, so that the screw member can be driven in while avoiding the end of the sash in the inside corner and the exterior wall mounting structure provided on the other of the two inside corner faces. The screw member is driven into a spacer attached between the two inside corner faces, so that a sufficient driving depth can be ensured even if the screw member is driven in at an angle. Therefore, the sash installation method can improve the workability of fixing the sash in the inside corner. Effect of the Invention

[0021] The building, auxiliary member, and sash installation method disclosed herein can improve the ease of work when fixing sashes in recessed corners. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is a perspective view of a building according to an embodiment. [Diagram 2] FIG. 2 is a cross-sectional view of an inside corner portion of a building according to an embodiment. [Diagram 3] 3 is a first partially enlarged view showing a construction method for fixing a sash to one of the two inside corner faces in the inside corner portion of FIG. 2. FIG. [Figure 4] 3 is a second partially enlarged view showing a construction method for fixing a sash to one of the two inside corner faces in the inside corner portion of FIG. 2. FIG. [Diagram 5] 3 is a third partially enlarged view showing a construction method for fixing a sash to one of the two inside corner faces in the inside corner portion of FIG. 2. FIG. [Figure 6] 4 is a fourth partially enlarged view showing a construction method for fixing a sash to one of the two inside corner faces in the inside corner portion of FIG. 2. FIG. [Figure 7] FIG. 1 is a cross-sectional view of an inside corner of a conventional building. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] <Embodiment> The method of constructing a building 1, an auxiliary member 30, and a sash 10 according to the embodiment will be described with reference to Figs.

[0024] <Buildings> As shown in Figs. 1 and 2, a building 1 has an exterior wall 2. Examples of the building 1 include a detached house, an apartment building, and a public facility. The exterior wall 2 separates an interior A1 and an exterior A2 of the building 1. The exterior wall 2 is composed of a first exterior wall 2a and a second exterior wall 2b. The second exterior wall 2b intersects with the first exterior wall 2a. The exterior wall 2 includes an inside corner portion 3. The inside corner portion 3 is located between the first exterior wall 2a and the second exterior wall 2b.

[0025] FIG. 2 is a cross-sectional view of the inside corner 3 as viewed from above. In the inside corner 3 of this embodiment, a corner post 4 and a base board 5 are arranged. The base board 5 is arranged so as to surround an opening formed in the exterior wall 2. An example of an opening formed in the exterior wall 2 is a window of the building 1. The inside corner 3 includes two inside corner surfaces 6. The inside corner 3 is formed by the two inside corner surfaces 6. In this embodiment, the two inside corner surfaces 6 are formed by the surfaces of the base board 5 that face the outside A2 side. In the example of FIG. 2, the two inside corner surfaces 6 are arranged so as to intersect approximately perpendicularly.

[0026] A sash 10 is provided on the inside corner surface 6 as described below. An exterior material 7 is attached to the inside corner surface 6 other than the portion where the sash 10 is provided. The exterior material 7 includes mortar material, tiles, and siding material. One of the first exterior wall 2a and the second exterior wall 2b is formed by attaching the sash 10 and the exterior material 7 to one of the two inside corner surfaces 6. The other of the first exterior wall 2a and the second exterior wall 2b is formed by attaching the sash 10 and the exterior material 7 to the other of the two inside corner surfaces 6.

[0027] The corner post 4 is made of wood with a square or rectangular cross section. A receiving material 4B is fixed to a first side surface of the corner post 4 via a connecting plywood 4A. The receiving material 4B is a member for receiving a sash 10 or an exterior material 7. The corner post 4 has a second side surface adjacent to the first side surface in the circumferential direction in a plan view. Another receiving material 4B is fixed to the second side surface of the corner post 4 via another connecting plywood 4A. A base board 5 is attached to each of the two receiving materials 4B. At the inside corner portion 3, the receiving material 4B receives the sash 10 or an exterior material 7 via the base board 5.

[0028] <Building structure at the corner> As shown in FIG. 2, at the inside corner portion 3, the building 1 includes a sash 10, an exterior wall mounting structure 11, a protrusion 12, a spacer 13, and a screw member 14.

[0029] The sash 10 is attached to a base board 5 to form part of the exterior wall 2. The sash 10 has a vertical frame 15 extending in the up-down direction and a horizontal frame 16 extending in the horizontal direction. The base board 5 in FIG. 2 extends, for example, along the vertical frame 15. The sash 10 is fixed with screws or the like to a window frame 8 that opens toward the interior A1 of the room. The sash 10 and the window frame 8 form an opening in the exterior wall 2.

[0030] The sash 10 is provided on one of the two inside corner surfaces 6. The sash 10 has an extension portion 17. The extension portion 17 is configured to extend from the vertical frame 15 along the inside corner surface 6 in a plan view when the sash 10 is provided on one of the two inside corner surfaces 6 (hereinafter, referred to as the sash mounted state).

[0031] As shown in FIG. 6, the sash 10 is provided with a protrusion 12. The protrusion 12 is configured to be continuous with the sash 10. The protrusion 12 protrudes from an end 10a of the sash 10. Specifically, the protrusion 12 protrudes from the outermost end of the portion of the sash 10 excluding the protrusion 12 in the horizontal direction. The protrusion 12 of the sash 10 is located at the outermost position in the horizontal direction on the sash 10. The horizontal direction is the direction in which the horizontal frame 16 of the sash 10 extends. The end 10a of the sash 10 is the end closer to the other of the two inside corner faces 6 in the horizontal direction.

[0032] In a state in which the sash is attached, the protrusion 12 protrudes obliquely from one of the two inside corner faces 6 toward the other of the two inside corner faces 6 in a plan view relative to the extension direction of the sash 10. The extension direction of the sash 10 in a plan view is the same as the lateral direction described above.

[0033] As shown in Figures 2 and 6, the exterior wall mounting structure 11 is provided on the other of the two inside corner faces 6. The exterior wall mounting structure 11 is an additional sash 18 provided separately from the sash 10. The additional sash 18 has a similar configuration to the sash 10, except that it is provided on the other of the two inside corner faces 6. The additional sash 18 has an additional protrusion 19. The additional protrusion 19 protrudes from an end 18a of the additional sash 18. The additional protrusion 19 has a similar configuration to the protrusion 12. The end 18a of the additional sash 18 is the end that is closer in the horizontal direction to one of the two inside corner faces 6 on which the sash 10 is provided.

[0034] The protrusion 12 of the sash 10 and the additional protrusion 19 of the additional sash 18, which is the exterior wall mounting structure 11, are fixed to the base board 5 by a spacer 13 and a screw member 14. The end 10a of the sash 10 and the end 18a of the additional sash 18 are arranged adjacent to each other so that the sash 10 and the additional sash 18 appear continuous.

[0035] As shown in FIG. 2 and FIG. 6, the spacer 13 is provided between the two inside corner surfaces 6. The spacer 13 may be attached to the two inside corner surfaces 6, or may be attached to only one of the two inside corner surfaces 6. The spacer 13 has a driving surface 20. A screw member 14 is driven into the driving surface 20. The spacer 13 is disposed on the two inside corner surfaces 6 so that the driving surface 20 faces the outside A2 side. In one example, the spacer 13 is configured to contact one of the two inside corner surfaces 6 and to contact the other of the two inside corner surfaces 6. The driving surface 20 is configured to face the outside A2 side when the spacer 13 is in contact with the two inside corner surfaces 6.

[0036] 2 and 6, the screw member 14 is driven into the spacer 13 so as to press the protruding portion 12 toward the spacer 13. In addition, the screw member 14 is driven into the spacer 13 so as to press the additional protruding portion 19 toward the spacer 13. The screw member 14 is, for example, a screw. The head of the screw, which is the screw member 14, presses the protruding portion 12 and the additional protruding portion 19 toward the spacer 13.

[0037] The screw members 14 are arranged so as to be inclined with respect to the first exterior wall 2a and the second exterior wall 2b in a plan view. The screw members 14 are arranged so as to be inclined with respect to the two inside corner faces 6 in a plan view. The screw members 14 are arranged so as to be inclined with respect to the horizontal frames 16 of the sash 10 in a plan view. The screw members 14 are driven from the spacer 13 to the base board 5. The screw members 14 may be driven from the spacer 13 to the corner post 4, or may be driven only into the spacer 13.

[0038] As shown in FIG. 6, the building 1 includes a water-stopping member 21. The water-stopping member 21 is disposed between the two inside corner surfaces 6 so as to be pressed against the protruding portion 12 by the screw member 14. In addition, the water-stopping member 21 is pressed against the additional protruding portion 19 by the screw member 14. The water-stopping member 21 is disposed between the two inside corner surfaces 6 so as to close the gap between the protruding portion 12 of the sash 10 and the additional protruding portion 19 of the additional sash 18. The water-stopping member 21 has a water-stopping portion 22 and a joint portion 23. The water-stopping portion 22 is, for example, a watertight material made of resin. The water-stopping portion 22 contacts the protruding portion 12 and the exterior wall mounting structure 11. The joint portion 23 is, for example, an aluminum joint.

[0039] The joint portion 23 contacts the screw member 14. When the screw member 14 is driven into the spacer 13, the joint portion 23 contacts the head of the screw, which is the screw member 14. A water-stopping portion 22 is attached to the joint portion 23. Specifically, the water-stopping portion 22 is attached to the back surface of the joint portion 23. The back surface of the joint portion 23 is the surface that faces the protruding portion 12 when the water-stopping member 21 is arranged so as to be pressed against the protruding portion 12. In one example, the water-stopping member 21 is configured such that the water-stopping portion 22 is attached to the back surface of the joint portion 23.

[0040] As shown in Fig. 6, the building 1 is provided with a waterproof sheet 24. The waterproof sheet 24 is attached to the spacer 13 so as to extend from one of the two inside corner faces 6, pass through the spacer 13, and then span to the other of the two inside corner faces 6. Specifically, the waterproof sheet 24 is attached to the two inside corner faces 6 and the driving surface 20. The waterproof sheet 24 is attached so as to close the gap between one of the two inside corner faces 6 and the driving surface 20 of the spacer 13, and the gap between the driving surface 20 of the spacer 13 and the other of the two inside corner faces 6. The waterproof sheet 24 is, for example, an airtight waterproof tape.

[0041] As shown in Fig. 6, the sash 10 is provided with an inclined portion 25. The inclined portion 25 is provided at an end portion 10a of the sash 10. The inclined portion 25 is provided on the sash 10 so as to be inclined with respect to the two inside corner faces 6 in a plan view when the sash is attached. Furthermore, the inclined portion 25 is provided on the sash 10 so as to face the end portion 11a of the exterior wall mounting structure 11 when the sash is attached.

[0042] The additional sash 18 is also provided with an inclined portion 25 similar to that of the sash 10. The inclined portion 25 provided on the additional sash 18 is configured to face the inclined portion 25 of the sash 10. The screw member 14 is disposed between the inclined portion 25 provided on the sash 10 and the inclined portion 25 provided on the additional sash 18 in a plan view. The water-stopping member 21 is disposed between the inclined portions 25 of the sash 10 and the additional sash 18 so that both ends of the water-stopping member 21 are in contact with the inclined portions 25 of the sash 10 and the additional sash 18 in a plan view. The inclined portion 25 provided on the sash 10 is configured to be continuous with the protruding portion 12. The inclined portion 25 provided on the additional sash 18 is configured to be continuous with the additional protruding portion 19. The inclined portion 25 provided on the additional sash 18 constitutes the end portion 11a of the exterior wall mounting structure 11.

[0043] As shown in Fig. 6, the building 1 includes a sealant 26. The sealant 26 is filled between the inclined portion 25 and the end portion 11a of the exterior wall mounting structure 11. In this embodiment, the sealant 26 seals between the inclined portions 25 of the sash 10 and the additional sash 18. Furthermore, a backup material 27 for filling the sealant 26 may be disposed between the inclined portions 25 of the sash 10 and the additional sash 18.

[0044] <Auxiliary parts> The building 1 includes an auxiliary member 30. The auxiliary member 30 is attached to the end 10a of the sash 10. The auxiliary member 30 is a member for providing the above-mentioned protrusion 12 to the sash 10. The auxiliary member 30 is connected to the sash 10 in the building 1. The auxiliary member 30 has the protrusion 12 and a connecting portion 31. The connecting portion 31 is connected to the end 10a of the sash 10.

[0045] The protrusion 12 of the auxiliary member 30 is configured as follows: When the auxiliary member 30 is connected to the sash 10 and attached to the sash, the protrusion 12 protrudes obliquely from one of the two inside corner faces 6 toward the other in a plan view relative to the extension direction of the sash 10.

[0046] The connection portion 31 is configured to extend along the vertical frame 15 of the sash 10 in a plan view. The connection portion 31 is connected to the vertical frame 15 of the sash 10, for example, by a screw or the like. The auxiliary member 30 is connected to the end portion 10a of the sash 10 by the connection portion 31, whereby the protrusion 12 is fixed to the sash 10.

[0047] The auxiliary member 30 has an inclined portion 25. The inclined portion 25 of the auxiliary member 30 constitutes the inclined portion 25 provided on the sash 10 described above. The inclined portion 25 is provided on the sash 10 by connecting the auxiliary member 30 to the sash 10. The inclined portion 25 is configured to be continuous with the connection portion 31. The inclined portion 25 is provided so as to be inclined relative to the connection portion 31 in a planar view when attached to the sash. The inclined portion 25 is configured to be continuous with the protruding portion 12. The protruding portion 12 protrudes approximately perpendicularly from the inclined portion 25 in a planar view when attached to the sash.

[0048] The auxiliary member 30 has a support portion 32. The support portion 32 is configured to support the protruding portion 12 relative to the connection portion 31. The support portion 32 is configured to contact the extension portion 17 of the sash 10 when the auxiliary member 30 is connected to the sash 10. The support portion 32 is configured to be continuous with the connection portion 31. The support portion 32 is provided perpendicular to the connection portion 31 in a plan view when attached to the sash.

[0049] <How to install sashes in inside corners> A method for installing the sash 10 will be described with reference to Figs. The construction method of the sash 10 is a construction method in which the sash 10 is fixed to at least one of the two inside corner faces 6 that form the inside corner portion 3 in the building 1.

[0050] The construction method includes a first step, a second step, and a third step. The first step is to attach a spacer 13 between two inside corner surfaces 6. The second step is to place an end portion 10a of a sash 10 having a protrusion 12 on one of the two inside corner surfaces 6. The third step is to drive a screw member 14 into the spacer 13 at an angle with respect to the two inside corner surfaces 6 so as to press the protrusion 12 toward the spacer 13 in a plan view.

[0051] The construction method includes a preparation step. The preparation step is performed before the first step or between the first step and the second step. The preparation step is a step of attaching the auxiliary member 30 to the end portion 10a of the sash 10. In the preparation step, the connection portion 31 of the auxiliary member 30 is connected to the end portion 10a of the sash 10 by a screw or the like, thereby providing the protrusion 12 on the sash 10.

[0052] As shown in FIG. 3, in the first step, a spacer 13 is provided between the two inside corner surfaces 6. The shape and size of the spacer 13 are adjusted according to the positional relationship between the two inside corner surfaces 6 and the sash 10. The spacer 13 may be pre-processed according to the positional relationship between the two inside corner surfaces 6 and the sash 10, or may be processed after being attached to the inside corner surfaces 6. After the spacer 13 is attached to the inside corner surfaces 6, a waterproof sheet 24 is attached to the driving surface 20 of the spacer 13. The waterproof sheet 24 is arranged so as to close the gap between the two inside corner surfaces 6 and the spacer 13.

[0053] 4, in the second step, an end portion 10a of the sash 10 is placed on one of the two inside corner faces 6. Furthermore, an end portion 11a of an exterior wall mounting structure 11 is placed on the other of the two inside corner faces 6. The exterior wall mounting structure 11 in this embodiment is an additional sash 18 configured similarly to the sash 10. Since an auxiliary member 30 is also attached to the end portion 18a of the additional sash 18 in the preparation step, the two protrusions 12 are placed so as to extend along the driving surface 20 of the spacer 13.

[0054] 5, in the third step, the screw member 14 is driven into the spacer 13. The screw member 14 is driven obliquely into the two recessed corner faces 6 so as to press the two protruding portions 12 toward the spacer 13 in a plan view. In the third step, a tool for rotating the screw member 14 is inserted between the two inclined portions 25 to engage with the head of the screw, which is the screw member 14.

[0055] In the third step, when the screw member 14 is driven into the spacer 13, the water-stopping member 21 is positioned so as to close the gap between the two inclined portions 25. The joint portion 23 is pressed by the screw member 14, so that the water-stopping portion 22 is pressed against the two protruding portions 12. The further the screw member 14 is driven into the spacer 13, the more the water-stopping portion 22 of the water-stopping member 21 is pressed toward the two protruding portions 12, so that the water-stopping member 21 closes the gap between the two protruding portions 12.

[0056] 6, the construction method includes a fourth step. The fourth step is a step of sealing between one sash 10 of the two inside corner faces 6 and the exterior wall mounting structure 11 of the other of the two inside corner faces 6. In the fourth step, after a backup material 27 is inserted between the two inclined portions 25, a sealant 26 is filled between the two inclined portions 25.

[0057] <Operation of the embodiment> A first effect of this embodiment will be described. FIG. 7 illustrates the configuration of an inside corner portion 42 included in an outer wall 41 of a conventional building 40. The fixing portion 45 of the sash 44 is fixed to each of the two inside corner faces 43 with a screw, thereby fixing the sash 44. In order to suppress water infiltration from the gap between the inside corner face 43 and the fixing portion 45, a waterproof sheet 46 is attached from the inside corner face 43 to the fixing portion 45. In the inside corner portion 42, in order to drive the screws into the fixing portion 45 and to attach the waterproof sheet 46, in the conventional building 40, the ends 44a of the two sashes 44 are arranged apart from each other. In order to fill the gap between the ends 44a of the two sashes 44, a wall 47 is arranged between the two sashes 44. A sealant 48 is filled between the ends 44a of the two sashes 44 and the wall 47 for waterproofing.

[0058] In the exterior wall 41, by bringing the ends 44a of the two sashes 44 close to each other without providing a wall 47, the opening formed by the sashes 44 can be enlarged. However, when the ends 44a of the two sashes 44 are close to each other, it is not possible to ensure sufficient space for driving screws into the fixing parts 45 of the two sashes 44. For example, when driving a screw into the fixing part 45 of one sash 44, there is a risk that the end 44a of the other sash 44 will interfere with the screw and a tool for driving the screw.

[0059] In the building 1, the screw member 14 for fixing the end 10a of the sash 10 to the inside corner surface 6 is arranged so as to be inclined with respect to the inside corner surface 6. The screw member 14 is driven into the spacer 13 so as to avoid the end 10a of the sash 10 and the end 11a of the exterior wall mounting structure 11. By inserting a tool that engages with the screw member 14 obliquely between the two inside corner surfaces 6, the tool can engage with the screw member 14, so that the end 10a of the sash 10 and the end 11a of the exterior wall mounting structure 11 are unlikely to interfere with the tool. Therefore, even if the end 10a of the sash 10 and the end 11a of the exterior wall mounting structure 11 are close to each other at the inside corner portion 3, the sash 10 can be suitably fixed to the exterior wall 2.

[0060] A second effect of this embodiment will be described. In a conventional building 40, it is necessary to drive screws into fixing portions 45 of two sashes 44. In the building 1, by driving one screw member 14, each of the ends 10a of two sashes 10 can be fixed to the inside corner surface 6. The construction method of the sashes 10 can reduce the amount of work required for driving screws.

[0061] A third function of this embodiment will be described. In the conventional building 40, even if two sashes 44 are placed close to each other without providing a wall 47, there is no surface between the two sashes 44 that faces each other, so a place for filling the sealant 48 cannot be secured. In the building 1, the inclined portion 25 is formed on the sash 10 by the auxiliary member 30. In the building 1, the sealant 26 can be received by the inclined portion 25 formed on the sash 10. Furthermore, by forming the inclined portion 25 on the additional sash 18, the inclined portions 25 of the two sashes 10 face each other at the recessed corner portion 3, so that the sealant 26 can be filled between the two inclined portions 25. In addition, when the wall 47 is disposed between the two sashes 44 as in the conventional building 40, the sealant 48 is filled in two places on the outer wall 41, but in the building 1, the sealant 26 needs to be filled in only one place between the sash 10 and the additional sash 18.

[0062] A fourth effect of this embodiment will be described. The protruding portion 12 and the inclined portion 25 are provided on the sash 10 by connecting the auxiliary member 30 to the sash 10. Therefore, even with an existing sash 44, construction can be performed using the construction method for the sash 10 by attaching the auxiliary member 30. Since the auxiliary member 30 can be attached with screws or the like, it is relatively easy to attach it to an existing sash 44.

[0063] <Effects of the embodiment> The effects of the embodiment will be described. (1) A building 1 includes a sash 10, an exterior wall mounting structure 11, a protrusion 12, a spacer 13, and a screw member 14. The protrusion 12 protrudes from an end 10a of the sash 10. The spacer 13 is provided between two inside corner faces 6. The screw member 14 is driven into the spacer 13 so as to press the protrusion 12 toward the spacer 13. The screw member 14 is disposed so as to be inclined with respect to the two inside corner faces 6 in a plan view.

[0064] According to this configuration, the screw members 14 are arranged so as to be inclined with respect to the two inside corner faces 6, so that the screw members 14 can be driven into the spacer 13 while avoiding the end 10a of the sash 10 and the end 11a of the exterior wall mounting structure 11. Therefore, the building 1 can improve the workability of fixing the sash 10 at the inside corner portion 3.

[0065] Since the screw members 14 are driven into the spacer 13 attached between the two inside corner faces 6, a sufficient driving depth can be ensured even if the screw members 14 are driven obliquely into the two inside corner faces 6. Therefore, the sash 10 can be suitably fixed by the spacer 13 and the screw members 14.

[0066] (2) A water-stopping member 21 is disposed between the two inside corner surfaces 6. The water-stopping member 21 has a water-stopping portion 22 and a joint portion 23. The water-stopping portion 22 contacts the protruding portion 12 and the exterior wall mounting structure 11. The joint portion 23 contacts the screw member 14 and has the water-stopping portion 22 attached thereto.

[0067] According to this configuration, the water blocking member 21 can prevent water from entering through the gap between the protruding portion 12 and the exterior wall mounting structure 11.

[0068] (3) The sash 10 is provided with an inclined portion 25. The inclined portion 25 is provided on the sash 10 so as to be inclined with respect to the two inside corner faces 6 in a plan view when the sash is attached. Furthermore, the inclined portion 25 is provided on the sash 10 so as to face the end portion 11a of the exterior wall mounting structure 11 when the sash is attached. The sealant 26 is filled between the inclined portion 25 and the end portion 11a of the exterior wall mounting structure 11. The inclined portion 25 provided on the sash 10 is configured to be continuous with the protruding portion 12.

[0069] According to this configuration, the sealing material 26 can prevent water from entering through the gap between the end 10a of the sash 10 and the end 11a of the exterior wall mounting structure 11. The water-stopping member 21 and the sealing material 26 can effectively prevent water from entering through the gap between the two inclined portions 25.

[0070] (4) A waterproof sheet 24 is attached to the spacer 13 so as to extend from one of the two inside corner faces 6 through the spacer 13 to the other of the two inside corner faces 6 .

[0071] According to this configuration, waterproof sheet 24 can prevent water from entering the gaps between two inside corner faces 6 and spacer 13.

[0072] (5) The exterior wall mounting structure 11 is an additional sash 18 provided separately from the sash 10. The additional sash 18 has an additional protrusion 19. The screw member 14 is driven into the spacer 13 so as to press the additional protrusion 19 toward the spacer 13.

[0073] According to this configuration, the sash 10 and the additional sash 18 can be fixed to the exterior wall 2 by driving the screw members 14 into the spacer 13. Since the sash 10 and the additional sash 18 can be fixed to the exterior wall 2 simultaneously by the screw members 14, workability is improved compared to when the sash 10 and the additional sash 18 are fixed individually by screws or the like.

[0074] (6) The auxiliary member 30 is connected to the sash 10. The auxiliary member 30 has a protruding portion 12 and a connecting portion 31. In a state where the auxiliary member 30 is attached to the sash, the protruding portion 12 protrudes obliquely from one of the two inside corner faces 6 toward the other of the two inside corner faces 6 in a plan view with the sash 10 attached. The connecting portion 31 is connected to an end portion 10a of the sash 10.

[0075] According to this configuration, the auxiliary member 30 is connected to the end 10a of the sash 10 by the connecting portion 31, thereby forming the protruding portion 12 on the sash 10. The protruding portion 12 of the auxiliary member 30 connected to the end 10a of the sash 10 is fixed to the inside corner surface 6 of the inside corner portion 3 by the screw member 14, thereby fixing the sash 10 to one of the two inside corner surfaces 6. Since the protruding portion 12 protrudes obliquely with respect to the extending direction of the sash 10, the screw member 14 can be driven in so as to fix the protruding portion 12 while avoiding the end 11a of the exterior wall mounting structure 11 provided on the other of the two inside corner surfaces 6 in the inside corner portion 3. Therefore, the auxiliary member 30 can improve the workability of fixing the sash 10 at the inside corner portion 3.

[0076] (7) The construction method is a method for providing a sash 10 on at least one of two inside corner surfaces 6 that constitute an inside corner 3 in a building 1 having an exterior wall 2 including a inside corner 3. The construction method includes the steps of attaching a spacer 13 between the two inside corner surfaces 6, arranging an end portion 10a of a sash 10 having a protrusion 12 on one of the two inside corner surfaces 6, and driving a screw member 14 into the spacer 13 at an angle relative to the two inside corner surfaces 6 so as to press the protrusion 12 toward the spacer 13 in a plan view.

[0077] According to this configuration, the screw member 14 is driven obliquely into the two inside corner faces 6, so that the screw member 14 can be driven while avoiding the end 10a of the sash 10 in the inside corner portion 3 and the exterior wall mounting structure 11 provided on the other of the two inside corner faces 6. The screw member 14 is driven into the spacer 13 attached between the two inside corner faces 6, so that a sufficient driving depth can be ensured even if the screw member 14 is driven obliquely. Therefore, the construction method can improve the workability of fixing the sash 10 in the inside corner portion 3.

[0078] <Modification> The above-mentioned embodiment is an example of a form that the construction method of the building, the auxiliary member, and the sash can take, and is not intended to limit the form. The construction method of the building, the auxiliary member, and the sash can take a form different from the form exemplified in the above-mentioned embodiment. Examples of such a form include a form in which a part of the configuration of the embodiment is replaced, changed, or omitted, or a form in which a new configuration is added to the embodiment. Modified examples of the embodiment are shown below.

[0079] The base board 5 may be omitted. In this modification, the inside corner surface 6 may be formed by the surfaces of the connecting plywood 4A and the receiving material 4B that face the outside A2.

[0080] In the inside corner portion 3, the two inside corner faces 6 may be disposed so as to intersect at an angle greater than 0 degrees and less than 90 degrees, or greater than 90 degrees and less than 180 degrees.

[0081] The exterior wall mounting structure 11 may be an exterior wall panel or a shutter pocket other than the additional sash 18.

[0082] The shape of the protrusions 12 may be changed as desired. For example, each of the two protrusions 12 may protrude from the end 10a of the sash 10 so that the two protrusions 12 overlap in the direction in which the screw member 14 extends. The screw member 14 may be configured to press each of the two protrusions 12 against the spacer 13 by inserting the screw member 14 through a through hole provided in each of the two protrusions 12.

[0083] The waterproofing member 21 may be omitted from the building 1. In this modification, the head of the screw, which is the screw member 14, may be in direct contact with the protruding portion 12.

[0084] The sealing material 26 may be omitted from the building 1.

[0085] The waterproof sheet 24 may be omitted from the building 1.

[0086] The auxiliary member 30 may not have other configurations as long as it has the protruding portion 12 and the connecting portion 31. In this modification, the protruding portion 12 may be directly continuous with the connecting portion 31 in a plan view.

[0087] The auxiliary member 30 may be omitted. In this modification, the protrusion 12 may be provided directly on the end 10a of the sash 10. Alternatively, the protrusion 12 may be provided on the tip of the extension portion 17 of the sash 10.

[0088] The present specification discloses the following techniques: [Appendix 1] A building having an exterior wall including an inside corner portion, comprising: a sash provided on one of two inside corner surfaces that constitute the inside corner portion; an exterior wall mounting structure provided on the other of the two inside corner surfaces; a protrusion protruding from an end of the sash; a spacer provided between the two inside corner surfaces; and a screw member driven into the spacer so as to press the protrusion toward the spacer, wherein the screw member is positioned so as to be inclined relative to the two inside corner surfaces in a plan view.

[0089] [Appendix 2] The building described in Appendix 1, wherein a water-stopping member is positioned between the two inside corner surfaces so as to be pressed against the protruding portion by the screw member, and the water-stopping member has a water-stopping portion that contacts the protruding portion and the exterior wall mounting structure, and a joint portion that contacts the screw member and to which the water-stopping portion is attached.

[0090] [Appendix 3] The building described in Appendix 1, wherein the sash has an inclined portion that is inclined with respect to the two inside corner faces in a plan view and faces the end of the exterior wall mounting structure when the sash is installed on one of the two inside corner faces, a sealant is filled between the inclined portion and the end of the exterior wall mounting structure, and the inclined portion is configured to be continuous with the protrusion.

[0091] [Appendix 4] A building as described in Appendix 1, wherein a waterproof sheet is attached to the spacer so that it extends from one of the two inside corner surfaces, passes through the spacer, and then spans to the other of the two inside corner surfaces.

[0092] [Appendix 5] 5. A building as described in any one of Appendices 1 to 4, wherein the exterior wall mounting structure is an additional sash provided separately from the sash, the additional sash having an additional protrusion protruding from an end of the additional sash, and the screw member is driven into the spacer so as to press the additional protrusion toward the spacer.

[0093] [Appendix 6] In a building having an exterior wall that includes an inside corner, an auxiliary member is connected to a sash provided on one of two inside corner surfaces that constitute the inside corner, the auxiliary member having, when the auxiliary member is connected to the sash and the sash is provided on one of the two inside corner surfaces, a protrusion that protrudes obliquely in a plan view from one of the two inside corner surfaces toward the other of the two inside corner surfaces in the direction in which the sash extends, and a connection portion that is connected to an end of the sash.

[0094] [Appendix 7] A sash installation method for fixing a sash to at least one of two inside corner surfaces that constitute an inside corner in a building having an exterior wall that includes an inside corner, the method comprising the steps of: attaching a spacer between the two inside corner surfaces; positioning an end of the sash, which has a protrusion, on one of the two inside corner surfaces; and driving a screw member into the spacer at an angle to the two inside corner surfaces so as to press the protrusion toward the spacer in a plan view. [Explanation of symbols]

[0095] 1...building, 2...exterior wall, 3...inner corner, 6...inner corner surface, 10...sash, 11...exterior wall mounting structure, 12...protrusion, 13...spacer, 14...screw member, 18...additional sash, 19...additional protrusion, 21...water-stopping member, 22...water-stopping portion, 23...joint portion, 24...waterproof sheet, 25...inclined portion, 26...sealant, 30...auxiliary member, 31...connection portion.

Claims

1. A building having an exterior wall including an inside corner, A sash provided on one of the two inside corner surfaces constituting the inside corner portion; an exterior wall mounting structure provided on the other of the two inside corner surfaces; a protrusion protruding from an end of the sash; A spacer provided between the two inside corner surfaces; a screw member that is driven into the spacer so as to press the protruding portion toward the spacer, The screw member is disposed so as to be inclined with respect to the two inside corner surfaces in a plan view. architecture.

2. a water-stopping member is disposed between the two inside corner surfaces so as to be pressed against the protruding portion by the screw member; The water-stopping member is a water stopper portion in contact with the protruding portion and the exterior wall mounting structure; A joint portion that contacts the screw member and to which the water stopper portion is attached. The building according to claim 1.

3. The sash is provided with an inclined portion that is inclined with respect to the two inside corner surfaces in a plan view when the sash is provided on one of the two inside corner surfaces and faces an end portion of the exterior wall mounting structure; A sealant is filled between the inclined portion and the end of the exterior wall mounting structure, The inclined portion is configured to be continuous with the protruding portion. The building according to claim 1.

4. A waterproof sheet is attached to the spacer so as to extend from one of the two inside corner surfaces to the other of the two inside corner surfaces after passing through the spacer. The building according to claim 1.

5. The exterior wall mounting structure is an additional sash provided separately from the sash, The additional sash has an additional protrusion protruding from an end portion of the additional sash, The screw member is driven into the spacer so as to press the additional protrusion toward the spacer. A building according to any one of claims 1 to 4.

6. In a building having an exterior wall including an inside corner portion, an auxiliary member is connected to a sash provided on one of two inside corner surfaces constituting the inside corner portion, a protrusion that protrudes obliquely from one of the two inside corner surfaces toward the other of the two inside corner surfaces in a plan view with respect to a direction in which the sash extends when the auxiliary member is connected to the sash and the sash is provided on one of the two inside corner surfaces; A connection portion connected to an end portion of the sash. Auxiliary parts.

7. A sash installation method for fixing a sash to at least one of two inside corner surfaces constituting an inside corner portion in a building having an exterior wall including the inside corner portion, comprising: attaching a spacer between the two inside corner surfaces; Positioning an end of the sash having a protrusion on one of the two inside corner surfaces; and driving a screw member into the spacer at an angle with respect to the two recessed corner surfaces so as to press the protruding portion toward the spacer in a plan view. How to install sashes.

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