Substrate, substrate structure having substrate, and construction method of construction panel using substrate

Abstract

To provide a substrate, a substrate structure having the substrate, and a construction method of the substrate panel using the substrate capable of improving workability when fixing the construction panel on a wall and a ceiling.SOLUTION: A substrate plate 10 is used in a corner part of a wall and a ceiling to fix a gypsum board P on a stud 3 and a ceiling joist 4. The substrate plate 10 is provided with: a body part 11 having a long shape, on which the gypsum board P is fixed; and an erected piece 13 allowed to be vertically folded from the body part 11 by being sandwiched between a pair of slits 12 formed in one of long edges 11a of the body part 11. A longitudinal direction of the body part 11 is installed so as to run orthogonal to one of the stud 3 and the ceiling joist 4 in the corner part, and the erected piece 13 folded from the body part 11 abuts on an end face of the gypsum board P when the gypsum board P is fixed on the body part 11.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a base board, a base structure having a base board, and a method for installing a panel using the base board, and in particular to a base board used in an inside corner between a wall and a ceiling, a base structure having a base board, and a method for installing a panel using the base board. [Background technology]

[0002] The walls of a building are primarily composed of a base material made up of studs and wall panels that cover the base material. Taking a lightweight steel-framed building as an example, the base material is made up of an upper runner installed on the ceiling, a lower runner installed on the floor, and studs installed in parallel between the upper and lower runners. The wall is then constructed by fixing gypsum board to the studs. Similarly, the ceiling is constructed by fixing gypsum board to the rough joists that form the base material.

[0003] Gypsum board is used in many construction sites as wall or ceiling panel material due to its excellent fire resistance and low cost. However, the work of fixing gypsum board to studs and rough joists is laborious and takes a lot of time. Patent Document 1 describes that good workability can be achieved by previously attaching double-sided adhesive tape to the studs to which the gypsum board is fixed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-132252 Summary of the Invention [Problem to be solved by the invention]

[0005] As described in Patent Document 1, the use of double-sided adhesive tape can improve the ease of installation when fixing gypsum board to studs, but further improvement is desired. Specifically, it is difficult to obtain the fixing strength (adhesion strength) required to fix gypsum board to the rough joists of a ceiling with double-sided adhesive tape. Therefore, it is desired to improve the ease of installation when fixing gypsum board to both walls and ceilings.

[0006] The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a base plate, a base structure having a base plate, and a method for installing a panel using a base plate, which can improve workability when fixing a panel to a wall or ceiling. [Means for solving the problem]

[0007] The above problem is solved by the base board of the present invention, which is a base board used in the recessed corners of a wall and a ceiling to fix a construction panel to the lower frame material of the wall and ceiling, the base board having an elongated shape and comprising a main body to which the construction panel is fixed, and an upright piece that is sandwiched between a pair of cut lines formed on one long side of the main body and can be bent vertically from the main body, the base board being installed at the recessed corner so that the longitudinal direction of the main body is perpendicular to the lower frame material of either the wall or the ceiling, and when the construction panel is fixed to the main body, the upright piece bent from the main body abuts against the end face of the construction panel.

[0008] According to the above configuration, the upright piece of the base board installed on the lower frame material of either the wall or the ceiling is raised so as to abut against the end face of the installation panel fixed to one of the lower frame materials. This allows the installation panel fixed to the other lower frame material to be temporarily fixed (temporarily placed) relative to the upright piece. Therefore, even when fixing the installation panel to the ceiling joist, the necessary fixing force (support force) can be ensured, and some of the work of temporarily fixing the installation panel can be omitted, making it possible to improve the ease of installation when fixing the installation panel to the wall or ceiling.

[0009] In addition, the base board is installed on one of the lower frame materials by abutting one of the long sides against the other lower frame material of the wall and the ceiling, and the upright piece preferably regulates the position of the end face of the construction panel. According to the above configuration, the standing piece can position the construction panel in the appropriate position when fixing the construction panel, thereby making it possible to prevent a construction panel that is fixed first to the lower frame material of either the wall or the ceiling from interfering with a construction panel that is later fixed to the other lower frame material.

[0010] The main body may have a folding guide line for guiding the folding of the upright piece. According to the above configuration, the upright piece can be easily bent along the folding guide line, thereby improving the ease of installation when fixing the installation panel to the lower frame material.

[0011] In addition, the base board may have a plurality of upright pieces along one of the long sides and an intermediate piece located between the plurality of upright pieces, and the intermediate piece may have an intermediate piece tip at the short end of the main body that can be bent vertically from the intermediate piece in the same direction as the upright pieces, and the base board may be mounted on one of the lower frame materials by abutting the intermediate piece tip bent from the intermediate piece against the other lower frame material of the wall and the ceiling. According to the above configuration, the upright piece and the tip of the intermediate piece can clamp the construction panel fixed to the other lower frame material and temporarily fix it in a stable state.

[0012] In addition, the above problem is solved by providing the above-mentioned base board and a wall underframe material and a ceiling underframe material to which the construction panel is fixed, and by installing the base board on either the wall underframe material or the ceiling underframe material at the inside corner portion.

[0013] According to the above configuration, the upright piece of the base board installed on either the wall soffit (partition stud) or the ceiling soffit (rough joist) stands upright so as to abut against the end face of the installation panel fixed to one of the soffits. This allows the installation panel fixed to the other soffit to be temporarily fixed to the upright piece. Therefore, part of the work of temporarily fixing the installation panel can be omitted, which improves the ease of installation when fixing the installation panel to the wall and ceiling.

[0014] In addition, according to the construction panel construction method of the present invention, the above problem is solved by the construction method for fixing multiple construction panels to the lower frame material of a wall and ceiling using a base board, which includes a standing piece bending process for bending an upright piece that is sandwiched between a pair of cut lines formed on one long side of the main body part of the base board having a long shape and can be bent vertically from the main body part, a base board erection process for erecting the base board to one of the lower frame materials of the wall and the ceiling at the corner of the wall and the ceiling so that the longitudinal direction of the main body part is perpendicular to the wall and the ceiling, a first construction panel fixing process for fixing the one construction panel to one of the lower frame materials while abutting the one construction panel to one side of the main body and the upright piece, a second construction panel abutting process for abutting another construction panel to the other side opposite to the one side of the upright piece, and a second construction panel fixing process for fixing the other construction panel to the other lower frame material of the wall and the ceiling.

[0015] According to the above configuration, the upright piece of the base board installed on the lower frame material of either the wall or the ceiling is raised so as to abut against the end face of the installation panel fixed to one of the lower frame materials. This allows the installation panel fixed to the other lower frame material to be temporarily fixed to the upright piece. Therefore, part of the work of temporarily fixing the installation panel can be omitted, and the workability when fixing the installation panel to the wall or ceiling can be improved.

[0016] In addition, the upright piece bending process includes a middle piece tip bending process in which the middle piece tip located at the short end of the main body part of the middle piece located between the multiple upright pieces provided on the base board is bent vertically from the main body part in the same direction as the upright pieces, and the base board erection process preferably involves erecting the base board on one of the lower frame materials by abutting the middle piece tip part against the other lower frame material. According to the above configuration, the erected piece and the tip of the intermediate piece can clamp the construction panel to be fixed to the other lower frame material and temporarily fix it in a stable state. [Effects of the Invention]

[0017] According to the base board, base structure having the base board, and installation method of the installation panel using the base board of the present invention, it is possible to improve the ease of installation when fixing the installation panel to the wall and ceiling. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a diagram for explaining the base structure of a wall and a ceiling. [Figure 2] FIG. 10 is a front view of the base plate with the upright pieces not bent and an enlarged view of the main part. [Figure 3] FIG. 10 is an enlarged perspective view of the base plate with the upright pieces bent and the main parts. [Figure 4] This is a diagram to explain a method of fixing a ceiling panel to a joist after fixing a wall panel material to a stud using a base plate. [Figure 5] 10A and 10B are diagrams showing the flow of the process of fixing a gypsum board using a base plate. [Figure 6] This is a diagram to explain a method of fixing a ceiling panel material to a joist using a base plate and then fixing a wall panel material to a partition wall. [Figure 7] FIG. 10 is an enlarged perspective view of a base plate according to a modified example and a main part. [Figure 8] 10A and 10B are diagrams showing the flow of the process of fixing a gypsum board using a base plate according to a modified example. [Figure 9]10 is a diagram illustrating a method of fixing a wall panel material to a stud using a base plate according to a modified example, and then fixing a ceiling panel material to a joist. [Figure 10] 10 is a diagram illustrating a method of fixing a wall panel material to a stud after fixing a ceiling panel material to a joist using a base plate according to a modified example. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] 1 to 6, a base plate 10 according to one embodiment of the present invention (hereinafter referred to as the present embodiment), a base structure 1 having the base plate 10, and a method for installing a gypsum board P using the base plate 10 will be described. However, the embodiment described below is merely an example for facilitating understanding of the present invention and does not limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit thereof, and of course, the present invention includes equivalents thereof.

[0020] <Base structure 1> First, with reference to FIG. 1, a description will be given of gypsum boards P that form the walls (for example, partition walls) and ceiling of a building, and a base structure 1 to which the gypsum boards P are fixed. Gypsum board P is a building panel material formed by pasting base paper on both sides of a core of gypsum. Because gypsum board P has excellent fire resistance and is easily available, it is used as wall panel material P1 that makes up walls and ceiling panel material P2 that makes up ceilings, as shown in Figure 1. In Fig. 1, the wall panel material P1 and the ceiling panel material P2 are indicated by two-dot chain lines. The wall panel material P1 and the ceiling panel material P2 are fixed to a base structure 1 indicated by a solid line. The gypsum board P corresponds to the construction panel.

[0021] The base structure 1 mainly comprises a base frame 2 that forms the framework of the walls and ceiling, and a base plate 10 that supports the gypsum board P together with the base frame 2. The lower frame material 2 mainly comprises studs 3 that form the framework of the walls and rafters 4 that form the framework of the ceiling. The lower frame material 2 is made of wooden square timber, but is not limited to this. The lower frame material 2 may also be made of lightweight steel (thin steel material).

[0022] The studs 3 extend vertically, spaced apart at intervals equal to the width of the wall panel material P1 (for example, 910 mm), and are arranged side by side between the floor and the ceiling. The studs 3 serve to support the wall panel material P1. The studs 3 correspond to the wall sill material. Similarly, the joists 4 extend horizontally, spaced apart from each other at a distance equal to the width of the ceiling panel material P2 (910 mm), and are arranged side by side between a pair of beams. The joists 4 serve to support the ceiling panel material P2. The joists 4 correspond to the ceiling underframe material. The interval between the studs 3 and the joists 4 is not limited to 910 mm. The studs 3 and the joists 4 may be arranged side by side at intervals of, for example, 450 mm.

[0023] The base plate 10 is spanned across multiple studs 3 at the corner between the wall and ceiling. This allows the wall panel material P1 to be firmly fixed to the studs 3 and the base plate 10. In other words, the base plate 10 can support the wall panel material P1 in cooperation with the studs 3. The base plate 10 corresponds to a base board.

[0024] As will be described later, the base plate 10 has an upper end (upper edge 11a) that abuts against the rough joist 4 and has an upright piece 13 that is bent downward from the upper edge 11a. Therefore, the base plate 10 can temporarily fix the ceiling panel material P2 after the wall panel material P1 is fixed to the stud 3 and before the ceiling panel material P2 is fixed to the rough joist 4. This makes it possible to improve the ease of installation when fixing the gypsum board P to the wall and ceiling. This point will be described in detail below.

[0025] <Base plate 10> Next, the base plate 10 will be described in detail with reference to Figures 2 and 3. Figure 2 is a front view of the base plate 10 without the upright pieces 13 being folded, and Figure 3 is a perspective view of the base plate 10 with the upright pieces 13 folded. As shown in Figures 2 and 3, the base plate 10 has an elongated shape and has a pair of long sides (upper side 11a and lower side 11b) and a short side 11c connecting the long sides. The base plate 10 is a steel plate-like body. The upper side 11a corresponds to one of the long sides.

[0026] The base plate 10 has a main body 11 with a flat surface and an upright piece 13 that is sandwiched between a pair of slits 12 formed in the main body 11 and can be bent vertically from the main body 11. A wall panel material P1 or a ceiling panel material P2, which will be described later, is fixed to the main body 11. The pair of slits 12 are formed by cutting the upper side 11a of the main body 11, and extend in the short direction of the main body 11. The length of the slits 12 (the height when the upright pieces 13 are upright) is approximately equal to the thickness of the gypsum board P. The slits 12 correspond to cut lines.

[0027] The standing pieces 13 are bent along the pair of slits 12 to stand upright from the main body 11. The main body 11 has a folding guide line 14 that guides the folding of the standing pieces 13. This allows the worker to easily fold the standing pieces 13 to stand upright. The folding guide line 14 is a perforated line, but is not limited to this. The folding guide line 14 may also be a folding guide groove formed in the main body 11. The standing piece 13 has a rectangular shape and is defined by a standing piece base end 13a on which the bending guide line 14 is formed, a pair of slits 12, and a standing piece tip end 13b.

[0028] Between the standing pieces 13, intermediate pieces 15 are formed which cannot be bent relative to the main body 11. In other words, the intermediate pieces 15 and the standing pieces 13 are provided alternately along the upper side 11a. The intermediate piece 15 is defined by an intermediate piece base end portion 15a, a pair of slits 12, and an intermediate piece tip end portion 15b, and has a long rectangular shape.

[0029] The upright pieces 13 and intermediate pieces 15 are preferably periodically formed at intervals smaller than the width (910 mm) of the gypsum board P. This allows the base plate 10 to be interposed between the wall panel material P1 and the ceiling panel material P2 when the base plate 10 is installed on the studs 3 or the rough joist 4, temporarily fixing and positioning the wall panel material P1 or the ceiling panel material P2. In FIGS. 1 to 3 , the upright pieces 13 and intermediate pieces 15 are periodically formed at intervals of 227.5 mm, which is one-fourth the width of the gypsum board P. Therefore, four upright pieces 13 abut against one gypsum board P. However, the intervals between the upright pieces 13 and intermediate pieces 15 are not limited to 227.5 mm. It is sufficient that one or more upright pieces 13 abut against one gypsum board P. Furthermore, by increasing the intervals between the upright pieces 13 and the intermediate pieces 15, the workload associated with bending the upright pieces 13 can be reduced.

[0030] <Method of installing gypsum board P using base plate 10> Next, a method for installing gypsum boards P (wall panel material P1 and ceiling panel material P2) using the base plate 10 will be described with reference to FIGS. Figure 4 is an enlarged view of a corner between a wall and a ceiling, showing the studs 3, joists 4, and base plate 10 that make up the base structure 1, and the gypsum board P that is made up of wall panel material P1 and ceiling panel material P2. As shown in Figure 4, the joint between the wall panel material P1 and the ceiling panel material P2 is fitted in a way that the ceiling panel material P2 wins and the wall panel material P1 loses.

[0031] In such cases, conventionally, the ceiling panel material P2 with a leading edge fit is first fixed to the rafter 4, and then the wall panel material P1 with a trailing edge fit is fixed to the stud 3, thereby constructing the ceiling panel material P2 and the wall panel material P1. Explaining this in more detail, the ceiling panel material P2 is temporarily fixed to the rafter 4 by abutting against the stud 3 and the rafter 4, and then permanently fixed to the rafter 4 from below. Next, the wall panel material P1 is temporarily fixed to the stud 3 by abutting against the ceiling panel material P2 and the stud 3, and then permanently fixed to the stud 3 from the side. However, in this case, the work of temporarily fixing the gypsum board P to the base structure 1 and then permanently fixing it must be repeated for the ceiling panel material P2 and the wall panel material P1, and improvements in workability have been desired.

[0032] In contrast, in the method of installing gypsum board P using base plate 10 in this embodiment, first, base plate 10 is fixed to stud 3, then wall panel material P1 with a recessed fit is fixed to stud 3, and finally ceiling panel material P2 with a recessed fit is fixed to joist 4. Hereinafter, the installation method of wall panel material P1 and ceiling panel material P2 will be described with reference to FIG. 5.

[0033] 5 shows a method for installing gypsum board P (wall panel material P1 and ceiling panel material P2). As shown in FIG. 5, first, a worker stands up the standing pieces 13 (step S10, standing piece bending process). Specifically, the worker is guided by the bending guide lines 14 to bend the multiple standing pieces 13 from the main body 11. As a result, the standing pieces 13 stand up against the base plate 10.

[0034] Next, the worker installs and secures the base plate 10 to the studs 3 (step S12, base plate installation process). Specifically, the worker abuts the upper edge 11a of the main body 11 against the underside of the joist 4 at the corner between the wall and ceiling, and secures the main body 11 so that its longitudinal direction is perpendicular to the multiple studs 3. The base plate 10 can be secured to the studs 3 using fixing screws (not shown).

[0035] Here, the length L1 of the intermediate piece 15 is equal to the length of the upright piece 13, and is approximately equal to the thickness of the gypsum board P. Therefore, by erecting the base plate 10 on the stud 3 with the upper edge 11a abutting against the rough joist 4, a space in which the ceiling panel material P2 can be fixed can be secured between the upright piece 13 and the rough joist 4. In other words, when the leading ceiling panel material P2 is not fixed, the vertical position of the trailing wall panel material P1 can be adjusted.

[0036] Next, the worker fixes the wall panel material P1 (step S14, first construction panel fixing step). Specifically, the worker abuts the end face (upper end) of the wall panel material P1 against the underside of the upright piece 13, and then fixes the wall panel material P1 to the stud 3. The wall panel material P1 is fixed to the stud 3 using fixing screws S. This allows the wall panel material P1 to be permanently fixed to the stud 3. The underside of the upright piece 13 corresponds to one face, and the wall panel material P1 corresponds to one construction panel.

[0037] Next, the worker temporarily fixes the ceiling panel material P2 to the upper surface of the standing piece 13 (step S16, second installation panel abutment process). Specifically, the worker temporarily places the ceiling panel material P2 on the upper surface of the standing piece 13 by abutting the tip of the ceiling panel material P2 against the upper surface of the standing piece 13. The upper surface of the standing piece 13 corresponds to the other surface, and the ceiling panel material P2 corresponds to the other installation panel.

[0038] Finally, the worker fixes the ceiling panel material P2 (step S18, second construction panel fixing process). Specifically, the worker permanently fixes the ceiling panel material P2, which has been temporarily placed on the upper surface of the upright piece 13, to the joist 4. The permanent fixation of the ceiling panel material P2 to the joist 4 is performed using fixing screws S (not shown).

[0039] As described above, by first fixing the base plate 10 to the stud 3, the wall panel material P1 with a lower fit can be fixed to the stud 3 even if the ceiling panel material P2 with a higher fit has not been fixed. Furthermore, by fixing the wall panel material P1 with a smaller fit to the studs 3 before the ceiling panel material P2 with a larger fit, the ceiling panel material P2 with a larger fit can be placed on top of the upright piece 13. Therefore, the ceiling panel material P2 can be permanently fixed to the joist 4 without temporarily fixing the end of the ceiling panel material P2 on the wall panel material P1 side using temporary fixing screws or the like, which improves the ease of installation when fixing the gypsum board P to the wall and ceiling.

[0040] Next, referring to Figure 6, we will explain the installation method for the wall panel material P1 and the ceiling panel material P2 when the fitting structure of the joint between the wall panel material P1 and the ceiling panel material P2 is such that the wall panel material P1 wins and the ceiling panel material P2 loses.

[0041] In this case, conventionally, the wall panel material P1 with a leading edge fit is first fixed to the stud 3, and then the ceiling panel material P2 with a trailing edge fit is fixed to the joist 4, thereby constructing the wall panel material P1 and the ceiling panel material P2. Explaining this in more detail, the wall panel material P1 is brought into contact with the stud 3 and the joist 4 and temporarily fixed to the stud 3, and then permanently fixed to the joist 4 from the side. Next, the ceiling panel material P2 is brought into contact with the wall panel material P1 and the joist 4 and temporarily fixed to the joist 4, and then permanently fixed to the joist 4. This requires repeated temporary fixing and permanent fixing for each of the multiple gypsum boards P, creating a demand for improved workability.

[0042] In contrast to this, the method for installing the gypsum board P using the base plate 10 in this embodiment is made up of the following steps: Each step has been described above, so detailed explanation will be omitted here. First, the standing pieces 13 of the base plate 10 are bent and made to stand up (standing piece bending process). Next, the base plate 10 is erected and fixed to the rafters 4 (base board erection process). Next, the ceiling panel material P2 with the weaker fit is fixed to the rafters 4 (first construction panel fixing process). Next, the wall panel material P1 with the stronger fit is abutted against the standing pieces 13 and temporarily fixed (second construction panel abutment process). Finally, the wall panel material P1 is fixed to the stud 3 (second construction panel fixing process).

[0043] As described above, the length L1 of the intermediate piece 15 is approximately equal to the thickness of the gypsum board P. Therefore, even when the wall panel material P1 is not fixed, the ceiling panel material P2 can be horizontally aligned by abutting the ceiling panel material P2 against the upright piece 13.

[0044] Furthermore, by fixing the ceiling panel P2 with a lower fit to the joist 4 before the wall panel P1 with a higher fit, the wall panel P1 with a higher fit can be temporarily fixed by being sandwiched between the stud 3 and the upright piece 13. Therefore, the wall panel P1 can be permanently fixed to the stud 3 without temporarily fixing the upper end of the wall panel P1 with temporary fixing screws or the like, which improves the ease of installation when fixing the gypsum board P to the wall and ceiling.

[0045] The above describes the construction method of the base plate 10, base structure 1, and gypsum board P according to one embodiment of the present invention. However, the above-described embodiment is merely an example to facilitate understanding of the present invention and does not limit the present invention. Although the base plate 10 has been described as having the main body 11 and the standing piece 13 that is bent vertically from the main body 11 and stands upright, the configuration of the base plate 10 is not limited to this. The intermediate piece 15 may have an intermediate piece bent portion 15c and an intermediate piece tip portion 15b that stands upright relative to the main body 11.

[0046] <Base plate 10A according to a modified example> Fig. 7 is a perspective view of a base plate 10A according to a modified example. As shown in Fig. 7, base plate 10A has a main body 11, standing pieces 13 that are bent and stand up from main body 11, and intermediate piece tip portions 15b that are bent and stand up from intermediate pieces 15 located between standing pieces 13.

[0047] As in the above-described embodiment, the standing piece 13 is bent along the pair of slits 12 to stand up from the main body 11. A folding guide line 14 is formed at the base end of the standing piece 13 to guide the folding of the standing piece 13.

[0048] The intermediate pieces 15 are located between the upright pieces 13 and are provided alternately with the upright pieces 13 along the upper side 11a. The intermediate piece 15 has an intermediate piece base end 15a and an intermediate piece tip end 15b, and the intermediate piece tip end 15b is bent at an intermediate piece bending portion 15c in the same direction as the standing piece 13 and stands up. The dimension L2 between the bending guide line 14 and the intermediate piece bending portion 15c is approximately equal to the thickness of the gypsum board P. In Fig. 7, the intermediate piece tip 15b stands lower than the upright piece 13, but the height of the intermediate piece tip 15b is not limited to the height shown in Fig. 7. The intermediate piece tip 15b may stand higher than the upright piece 13.

[0049] <Installation method of gypsum board P using base plate 10A according to modified example> Next, a method for installing gypsum boards P (wall panel material P1 and ceiling panel material P2) using the base plate 10A will be described with reference to FIG. Figure 8 is an enlarged view of a corner between a wall and a ceiling, showing a base structure 1 and a wall panel P1 and a ceiling panel P2 that are installed on the base structure 1. As shown in Figure 8, the joint between the wall panel P1 and the ceiling panel P2 has a fitting structure in which the ceiling panel P2 wins and the wall panel P1 loses.

[0050] In this case, as in the above-described embodiment, first the wall panel material P1 with a recessed fit is fixed to the stud 3, and then the ceiling panel material P2 with a recessed fit is fixed to the joist 4. Below, a method for installing the gypsum board P (wall panel material P1 and ceiling panel material P2) will be described with reference to Figure 9.

[0051] 9 shows a method for installing gypsum board P using base plate 10A. As shown in FIG. 9, first, a worker stands upright pieces 13 and intermediate piece tip portions 15b (step S20, standing piece bending process, intermediate piece tip portion bending process). Specifically, the worker is guided by bending guide lines 14 to bend multiple standing pieces 13 from main body portion 11. As a result, standing pieces 13 stand upright relative to base plate 10A. The worker also bends the plurality of intermediate piece tip portions 15b from the intermediate piece 15 along the intermediate piece bent portions 15c, causing the intermediate piece tip portions 15b to stand upright relative to the base plate 10A.

[0052] Next, the worker installs and secures the base plate 10A to the studs 3 (step S22, base plate installation step). Specifically, the worker abuts the intermediate piece tip 15b against the underside of the joist 4 at the corner between the wall and ceiling, and secures the main body 11 to the multiple studs 3 so that the longitudinal direction of the main body 11 is perpendicular to the joist 3.

[0053] Here, the dimension L2 between the upright piece 13 and the tip 15b of the middle piece is approximately equal to the thickness of the gypsum board P, as described above. Therefore, by erecting the base plate 10A on the stud 3 with the tip 15b of the middle piece abutting against the joist 4, a space in which the ceiling panel material P2 can be fixed can be secured between the upright piece 13 and the tip 15b of the middle piece. In other words, when the ceiling panel material P2 of the right fit is not fixed, the vertical position of the wall panel material P1 of the left fit can be adjusted.

[0054] Next, the worker fixes the wall panel material P1 (step S24, first construction panel fixing step). Specifically, the worker abuts the end face (upper end) of the wall panel material P1 against the underside of the upright piece 13, and then fixes the wall panel material P1 to the stud 3. The wall panel material P1 is fixed to the stud 3 using fixing screws S. This allows the wall panel material P1 to be permanently fixed to the stud 3.

[0055] Next, the worker temporarily fixes the ceiling panel material P2 between the standing piece 13 and the intermediate piece tip end 15b (step S26, second installation panel abutment process). Specifically, the worker abuts the tip end of the ceiling panel material P2 against the standing piece 13, thereby placing the ceiling panel material P2 on the upper surface of the standing piece 13 and temporarily placing it thereon.

[0056] Finally, the worker fixes the ceiling panel material P2 (step S28, second construction panel fixing process). Specifically, the worker permanently fixes the ceiling panel material P2, which has been temporarily placed between the upright piece 13 and the tip upright piece 16, to the joist 4. The permanent fixation of the ceiling panel material P2 to the joist 4 is performed using fixing screws S (not shown).

[0057] As described above, by using the base plate 10A according to the modified example, it is possible to achieve the same effects as those of the above-described embodiment. Furthermore, by using the base plate 10A according to the modified example, the ceiling panel material P2 can be temporarily fixed so that it is sandwiched between the upright piece 13 and the tip end 15b of the intermediate piece, thereby improving the stability of the ceiling panel material P2 in the temporarily fixed state.

[0058] Next, a construction method when the fitting structure of the joint between the wall panel P1 and the ceiling panel P2 is such that the wall panel P1 wins and the ceiling panel P2 loses will be described with reference to FIG.

[0059] In this case, the method for installing the gypsum board P using the base plate 10A comprises the following steps, as in the above-described embodiment: Each step has been described above, so detailed description will be omitted here. First, the upright piece 13 and the intermediate piece tip 15b of the base plate 10A are bent and erected (upright piece bending process, intermediate piece tip bending process). Next, the base plate 10A is erected and fixed to the rafters 4 (base board erection process). Next, the ceiling panel material P2 with the lower fitting is fixed to the rafters 4 (first construction panel fixing process). Next, the wall panel material P1 with the upper fitting is abutted against the upright piece 13 and temporarily fixed (second construction panel abutment process). Finally, the wall panel material P1 is fixed to the stud 3 (second construction panel fixing process).

[0060] As described above, by using the base plate 10A according to the modified example, it is possible to achieve the same effects as those of the above-described embodiment. Furthermore, by using the base plate 10A according to the modified example, the wall panel P1 can be temporarily fixed so that it is sandwiched between the upright piece 13 and the tip end 15b of the intermediate piece, thereby improving the stability of the wall panel P1 in the temporarily fixed state.

[0061] In the above-described embodiment, gypsum board P has been used as an example of the wall panel material P1 and the ceiling panel material P2, but the wall panel material P1 and the ceiling panel material P2 are not limited to gypsum board P. Wall surface materials and ceiling surface materials other than gypsum board P may also be used. However, by using gypsum board P, it is possible to suitably improve the workability of the base structure 1.

[0062] In the above-described embodiment, the upstanding piece 13 defined by the upstanding piece base end 13a, the pair of slits 12, and the upstanding piece tip end 13b has been described as having a rectangular shape, but is not limited thereto. The upstanding piece 13 may have a trapezoidal shape by forming the slit 12 at an angle with respect to the upper side 11a of the main body 11.

[0063] In the above-described embodiment, the base plate 10 is described as being fixed to the studs 3 or the rafters 4 with fixing screws, but this is not limiting. The base plate 10 may also be installed and fixed to the studs 3 or the rafters 4 with adhesive tape. [Explanation of symbols]

[0064] 1 Base structure 2 Lower frame material 3 Studs 4. No-en 10, 10A Base plate (base board) 11 Main body 11a Top edge (one long edge) 11b bottom edge 11c Short Side 12 Slit (cut line) 13 Standing piece 13a Base end of standing piece 13b Tip of upright piece 14 Bend guide line 15 Intermediate piece 15a Base end of intermediate piece 15b Intermediate piece tip 15c Middle piece bent part P Gypsum board (construction panel) P1 Wall Panel Material P2 Ceiling panel material S fixing screw

Claims

1. A base board used in the corner of the wall and the ceiling to fix the installation panel to the lower frame material of the wall and the ceiling, A main body portion having an elongated shape and to which the construction panel is fixed; a standing piece that is sandwiched between a pair of cut lines formed on one long side of the main body and can be bent perpendicularly from the main body, A base board characterized in that it is installed at the inside corner portion so that the longitudinal direction of the main body is perpendicular to the lower frame material of either the wall or the ceiling, and when the installation panel is fixed to the main body portion, the upright piece bent from the main body portion abuts against the end face of the installation panel.

2. The base board is installed on one of the lower frame members with the one long side abutting against the other lower frame member of the wall or the ceiling, The base board according to claim 1 , wherein the upright piece regulates the position of the end face of the installation panel.

3. 2. The base board according to claim 1, wherein the main body portion has a folding guide line for guiding the folding of the upright piece.

4. The base plate includes a plurality of the upright pieces along the one long side and intermediate pieces located between the plurality of upright pieces, the intermediate piece has an intermediate piece tip portion at a tip end of the main body portion in a lateral direction, the intermediate piece tip portion being bendable from the intermediate piece in the same direction as the upright piece, The base plate described in claim 1 is installed on one of the lower frame members by abutting the tip of the intermediate piece bent from the intermediate piece against the other lower frame member of the wall or the ceiling.

5. A base plate according to any one of claims 1 to 4; a wall sill and a ceiling sill to which the installation panel is fixed; A base structure characterized in that the base board is installed on either the wall lower frame material or the ceiling lower frame material at the inside corner portion.

6. A construction method for fixing a plurality of construction panels to a lower frame material of a wall and a ceiling using a base board, a bending step of bending an upright piece that is sandwiched between a pair of cut lines formed on one long side of a main body portion of the base plate having an elongated shape and can be bent perpendicularly from the main body portion; a base board installation process for installing the base board on a lower frame material of either the wall or the ceiling at a corner of the wall and the ceiling so that the longitudinal direction of the main body is perpendicular to the lower frame material of the wall or the ceiling; A first construction panel fixing process for fixing one construction panel to one of the lower frame members while abutting the one construction panel against one surface of the main body portion and the upright piece; A second construction panel abutting process of abutting another construction panel against the other surface opposite to the one surface of the upright piece; A construction panel construction method characterized by having a second construction panel fixing process of fixing the other construction panel to the other lower frame material of the wall and the ceiling.

7. The upright piece bending step includes a step of bending an intermediate piece tip portion located at the tip of the main body portion of an intermediate piece located between the plurality of upright pieces provided on the base board in the short side direction, perpendicularly from the main body portion in the same direction as the upright pieces, The construction method for a construction panel as described in claim 6, characterized in that the base board installation process involves abutting the tip of the intermediate piece against the other lower frame material to install the base board on the one lower frame material.

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