Surface material holding stud, and fixing method of construction surface material to surface material holding stud

Abstract

To provide a surface material holding stud and a fixing method of a construction surface material to the surface material holding stud that allows a worker to fix a construction surface material to a substrate structure alone and that improves workability and safety in fixing work.SOLUTION: A surface material holding stud 1 having an elongated shape is interposed between an upper runner R1 and a lower runner R2, and a gypsum board (PB) is fixed thereto. The surface material holding stud 1 has a surface material fixing wall 1a to which a gypsum board PB is fixed. The surface material fixing wall 1a has: a standing wall 10 cut out so as to be able to stand from the surface material fixing wall 1a by being bent vertically along a standing wall bending line 2 extending in a longitudinal direction of the surface material holding stud 1; and a surface material holding piece 11 provided at a tip side of the standing wall 10 and cut out so as to overlap the gypsum board PB in a direction perpendicular to the surface material fixing wall 1a by being bent along a holding piece bending line 3 perpendicular to the standing wall bending line 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a surface material holding stud and a method for fixing a construction surface material to the surface material holding stud, and more particularly to a surface material holding stud used as a base material and a method for fixing a construction surface material to the surface material holding stud. [Background technology]

[0002] In recent years, architectural structures using lightweight steel frames (light steel) have become widespread due to their excellent fire resistance. To cite a specific example, a partition wall structure has become widespread, which includes studs that function as partition columns, upper and lower runners that support the studs from above and below, and gypsum boards that are fixed to the studs. To outline the construction process for a partition wall structure, first, the upper and lower runners are fixed to the ceiling and floor of the building, respectively. Next, studs with attached stud spacers are installed between the upper and lower runners to assemble the base structure. Next, gypsum boards are attached to the base structure, and the partition wall structure is constructed.

[0003] Patent Document 1 describes a rigid stud that forms the base structure of a partition wall. Specifically, the rigid stud described in Patent Document 1 is a long steel material with a roughly C-shaped cross section, and the rigidity of the stud is increased by overlapping two steel plates and forming ribs. As a result, the base structure of the partition wall disclosed in Patent Document 1 does not require stud spacers. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-089294 Summary of the Invention [Problem to be solved by the invention]

[0005] By using the rigid studs described in Patent Document 1, stud spacers are no longer required, which improves workability and shortens construction time, but there is still room for further improvement. This will be explained in detail below. The work of fixing gypsum board to the base structure is carried out by holding the gypsum board in contact with the fixing surface of the stud that fixes the gypsum board and fastening the gypsum board to the stud with screws. Therefore, in order to fix the gypsum board to the stud, the heavy gypsum board must be held in contact with the stud while simultaneously fastening the screws, and when a worker is performing this task alone, improvements in workability and safety are desired.

[0006] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a surface material holding stud that allows a worker to fix a construction surface material to a base structure by himself, and that can improve the ease of work and safety during the fixing work, and a method for fixing a construction surface material to the surface material holding stud. [Means for solving the problem]

[0007] The above problem is solved by the stud of the present invention, which is a long panel holding stud that is interposed between a pair of runners and to which a construction panel is fixed, and which is equipped with a panel fixing wall to which the construction panel is fixed, and which has an upright wall that is cut out to be able to stand from the panel fixing wall by bending it vertically from the panel fixing wall along a first bending line extending in the longitudinal direction of the panel holding stud, the construction panel is provided at the tip side of the upright wall that is bent vertically and is fixed to the panel fixing wall by bending it from the upright wall along a second bending line that is different from the first bending line, and a panel holding piece that is cut out to overlap in a direction perpendicular to the panel fixing wall.

[0008] According to the above configuration, the upright wall formed on the panel-holding stud is bent perpendicularly from the panel-fixing wall, and the panel-holding piece is bent from the upright wall so that it overlaps with the construction panel in a direction perpendicular to the panel-fixing wall, allowing the panel-holding piece to hold the construction panel. This allows a worker to fasten the construction panel to the panel-holding stud with screws while the construction panel is held in place. This allows a single worker to secure the construction panel to the base structure, and eliminates the need to manually support the heavy construction panel, improving workability and safety.

[0009] In addition, the panel fixing wall may have the first bending line at the center of the panel holding stud in a short direction perpendicular to the long direction. According to the above configuration, the standing wall is bent along the first bending line located at the center of the short side of the surface material holding stud, so that the worker can abut and hold the construction surface material against either the right or left side of the surface material holding stud.

[0010] In addition, the panel fixing wall is preferably provided at the tip of the standing wall, and by bending it from the standing wall along a pair of second bending lines different from the first bending lines, it has a pair of panel holding pieces that overlap in a direction perpendicular to the panel fixing wall with each of the pair of construction panel pieces fixed to both sides of the short side direction of the panel holding stud. According to the above configuration, the pair of surface material holding pieces overlap each of the pair of construction surface materials fixed to both sides of the short side of the surface material holding stud in a direction perpendicular to the surface material fixing wall, allowing the worker to abut and hold the construction surface materials against both the left and right sides of the surface material holding stud.

[0011] The panel fixing wall may be provided closer to the base end of the standing wall than the second bending line and may have a cutting guide line for guiding cutting of the tip end of the standing wall. With this configuration, after the construction panel is secured to the panel-holding studs, the worker can cut the leading end of the upright wall along the cutting guide line, making it easy to dispose of any unnecessary parts after securing the construction panel to the panel-holding studs.

[0012] The surface material fixing wall may have the upright wall and the surface material holding piece on both ends in the longitudinal direction. According to the above configuration, the construction surface material can be held in contact with the surface material holding studs at both ends in the longitudinal direction, thereby improving stability when holding the construction surface material and making it possible to improve safety at the construction site.

[0013] Furthermore, the above problem is solved by a method for fixing a construction surface material to a long surface material holding stud interposed between a pair of runners, the method comprising: a first bending step of bending a notched upright wall that can stand up from a surface material fixing wall by bending the construction surface material vertically from the surface material fixing wall along a first bending line extending in the longitudinal direction of the surface material holding stud installed between the pair of runners; an abutting step of abutting the construction surface material against the surface material fixing wall of the surface material holding stud; a second bending step of a notched surface material holding piece that is provided at the tip of the vertically bent upright wall and that is bent from the upright wall along a second bending line different from the first bending line to overlap the construction surface material fixed to the surface material fixing wall in a direction perpendicular to the surface material fixing wall, thereby holding the construction surface material abutted against the surface material fixing wall; and a fixing step of fixing the construction surface material to the surface material fixing wall of the surface material holding stud.

[0014] According to the above configuration, the upright wall formed on the panel-holding stud is bent perpendicularly from the panel-fixing wall, and the panel-holding piece is bent from the upright wall so that it overlaps with the construction panel in a direction perpendicular to the panel-fixing wall, allowing the panel-holding piece to hold the construction panel. This allows a worker to fasten the construction panel to the panel-holding stud with screws while the construction panel is held in place. This allows a single worker to secure the construction panel to the base structure, and eliminates the need to manually support the heavy construction panel, improving workability and safety.

[0015] Furthermore, after the fixing step, it is preferable to further include a cutting step of cutting the tip of the standing wall along a cutting guide line that is formed on the base end side of the standing wall from the second bending line and that guides the cutting of the tip of the standing wall. With this configuration, after the construction panel is secured to the panel-holding studs, the worker can cut the leading end of the upright wall along the cutting guide line, making it easy to dispose of any unnecessary parts after securing the construction panel to the panel-holding studs. [Effects of the Invention]

[0016] According to the surface material holding stud and the method for fixing a construction surface material to the surface material holding stud of the present invention, a worker can fix the construction surface material to the base structure by himself, and it is possible to improve the workability and safety of the fixing work. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 2 is a diagram for explaining an outline of a holding structure for a gypsum board. [Figure 2] FIG. 1 is a diagram illustrating a steel partition. [Figure 3] FIG. 1 is a cross-sectional view of a wall material retention stud. [Figure 4] FIG. 2 is a front view of the wall material retaining stud, showing an enlarged view of the main part. [Figure 5]FIG. 10 is a front view of a wall material retaining stud according to a modified example, showing an enlarged view of a main portion. [Figure 6] FIG. 10 is a diagram showing the flow of a method for fixing a gypsum board. [Figure 7] This is a perspective view of a steel partition with a folded upright wall. [Figure 8] FIG. 8 is an enlarged view of a steel partition showing a portion A1 of FIG. 7 in an enlarged manner. [Figure 9] This is an oblique view of a steel partition and gypsum board with the upper support piece bent. [Figure 10] 10 is an enlarged view of a portion A2 of FIG. 9 showing the steel partition and the gypsum board. [Figure 11] This is an oblique view of gypsum board screwed to a steel partition. [Figure 12] FIG. 1 is a perspective view of a partition wall before the upright wall is cut. [Figure 13] 13 is an enlarged view of a partition wall showing a portion A3 of FIG. 12 in an enlarged manner. [Figure 14] FIG. 10 is an enlarged view showing a partition wall with the tip of the upright wall cut off. DETAILED DESCRIPTION OF THE INVENTION

[0018] A wall material retention stud 1 according to one embodiment of the present invention (hereinafter referred to as the present embodiment) will be described below with reference to Figures 1 to 14. However, the embodiment described below is merely an example to facilitate understanding of the present invention and is not intended to 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 also includes equivalents thereof.

[0019] In the following description, the "up-down direction" refers to the vertical direction as seen by a worker fixing the gypsum board PB to the wall material holding stud 1. The "left-right direction" refers to the left-right direction as seen by a worker fixing the gypsum board PB to the wall material holding stud 1. The "front-rear direction" refers to the direction perpendicular to the up-down direction and the left-right direction, and perpendicular to the gypsum board PB.

[0020] <Outline of the gypsum board PB retention structure> The partition wall PW is constructed by attaching and fixing the gypsum board PB, which is the wall surface material, to the steel partition SP, which is the base structure. To give an overview of the construction method, first, an upper runner R1 is installed on the ceiling of the building and a lower runner R2 is installed on the floor, and studs ST are installed between the upper runner R1 and the lower runner R2. In this way, the steel partition SP is installed in the building. Next, the gypsum board PB is placed against the studs ST and fastened with screws while in contact with them. In this way, the gypsum board PB is fixed to the steel partition SP. The upper runner R1 and the lower runner R2 correspond to a pair of runners.

[0021] Among the above tasks, when fixing the gypsum board PB to the stud ST, it is necessary to screw the gypsum board PB to the stud ST while keeping the gypsum board PB in contact with the stud ST. Because the gypsum board PB is heavy, it is sometimes difficult for a worker to do this alone. The wall material holding stud 1 according to this embodiment has a wall material holding piece 11 that holds the gypsum board PB in abutting position. This allows a worker to perform screw fastening work while the gypsum board PB is held by the wall material holding stud 1. This allows a worker to attach and secure the gypsum board PB to the base structure by himself, and further improves workability and safety because there is no need to manually support the heavy gypsum board PB. An overview of the wall material holding stud 1 will be described below.

[0022] As shown in Fig. 1, the partition wall PW has a wall surface material, gypsum board PB, and a steel partition SP as a base structure. Gypsum board PB has excellent fire resistance and sound insulation properties and is widely used as an interior material for the walls and ceilings of buildings. In Fig. 1, two gypsum boards PB are fixed to the steel partition SP, but the number of gypsum boards PB is not limited to two. Three or more gypsum boards PB may be fixed to the steel partition SP.

[0023] Steel partitions SP are made of lightweight steel (lightweight steel frame), which is lightweight, fire-resistant, and inexpensive to procure. Steel partitions SP made of lightweight steel are widely used as the base structure of buildings. The steel partition SP is mainly composed of an upper runner R1, a lower runner R2, a stud ST, and a wall material holding stud 1. In Figure 1, the stud ST and the wall material holding stud 1 are provided at the positions indicated by the dashed lines.

[0024] The upper runner R1, the lower runner R2, and the stud ST are steel base materials defined by standards. The wall material holding stud 1 is a partition wall in which a standing wall 10 and a wall material holding piece 11 (see FIG. 4) are formed by cutting a standard stud ST.

[0025] As shown in Figure 1, the standing wall 10 stands upright and protrudes forward from between the left and right gypsum boards PB. The standing wall 10 has wall material holding pieces 11 at its tip protruding forward, and the wall material holding pieces 11 can be bent so as to overlap the gypsum boards PB in the front-to-rear direction to hold the gypsum boards PB. More specifically, the tip of the standing wall 10 is formed with a pair of wall material holding pieces 11 consisting of an upper holding piece 11a and a lower holding piece 11b, which are bent so as to overlap the left and right gypsum boards PB in the front-to-rear direction, respectively, to hold the gypsum boards PB. Furthermore, the upright walls 10 and wall material holding pieces 11 are formed at the upper and lower ends of the wall material holding stud 1. This allows the wall material holding stud 1 to stably hold the gypsum board PB at its upper and lower ends. The gypsum board PB corresponds to the construction surface material, and the wall material holding stud 1 corresponds to the surface material holding stud.

[0026] <Steel Partition SP> Fig. 2 is a diagram for explaining the steel partition SP of the base structure. As shown in Fig. 2, the steel partition SP mainly comprises an upper runner R1, a lower runner R2, a stud ST, and a wall material holding stud 1. The upper runner R1 and lower runner R2 are long rails for lining up the studs ST, and have a U-shaped cross section. The upper runner R1 is fixed to the ceiling slab or under the beams, while the lower runner R2 is fixed to the floor slab.

[0027] The stud ST is a hollow columnar body that functions as a partition and has a rectangular cross section. However, it is not limited to this and the stud ST may have a substantially C-shaped cross section. The stud ST has front and rear wall material fixing walls STa to which the gypsum boards PB are fixed, and left and right side walls STb that are interposed between the front and rear wall material fixing walls STa and connect the wall material fixing walls STa. The studs ST and the wall material holding studs 1 are erected between the upper runner R1 and the lower runner R2 so as to be arranged side by side at a predetermined interval (for example, 455 mm) therebetween.

[0028] <Wall material holding stud 1> The wall material holding stud 1 is a hollow columnar body that functions as a partition wall, similar to the stud ST. A wall material fixing wall 1a to which the gypsum board PB is fixed has a standing wall 10 and a wall material holding piece 11 formed therein. In other words, the wall material holding stud 1 is a partition wall in which the standing wall 10 and the wall material holding piece 11 are formed by notching a standard stud ST. The standing wall 10 and the wall material holding piece 11 will be described later with reference to FIG. 4.

[0029] As shown in Figure 3, the wall material holding stud 1 has a rectangular cross section. The wall material holding stud 1 has front and rear wall material fixing walls 1a and left and right side walls 1b that are interposed between the front and rear wall material fixing walls 1a and connect the wall material fixing walls 1a. The wall material fixing walls 1a and side walls 1b are embossed to form irregularities 1c that improve the strength of the wall material holding stud 1.

[0030] FIG. 4 shows the upright wall 10 and wall material holding piece 11 formed on the wall material fixing wall 1a of the wall material holding stud 1. As shown in FIG. 4, the upright wall 10 is cut out so as to stand upright from the wall material fixing wall 1a by bending it vertically from the wall material fixing wall 1a along the upright wall bending line 2 extending in the longitudinal direction of the wall material holding stud 1 (the up-down direction in FIG. 4). Specifically, the upright wall 10 is formed by notching the wall material fixing wall 1a along a left notch line 5a, an upper notch line 5b, and a lower notch line 5c. The left notch line 5a is a linear notch line extending in the vertical direction. The upper notch line 5b is a notch line having horizontal portions located at both left and right ends and a lower protruding portion located between the horizontal portions and protruding downward. The lower notch line 5c is a notch line having horizontal portions located at both the left and right ends and an upper protruding portion located between the horizontal portions and protruding upward. Due to the left notch line 5a, the upper notch line 5b, and the lower notch line 5c, the standing wall 10 becomes a protruding wall having a substantially H-shape when bent from the wall material fixing wall 1a.

[0031] The wall material fixing wall 1a has a standing-wall bending line 2 at the center in the short direction (left-right direction in FIG. 4 ) of the wall material holding stud 1. Therefore, when the standing wall 10 is bent from the wall material fixing wall 1a and erected, the gypsum board PB can be held in contact with either the left or right side of the standing wall 10. The standing-wall bending line 2 is a perforated line formed in the wall material fixing wall 1a, but is not limited to this. The standing-wall bending line 2 may also be a recessed groove formed by press working to make it easier to bend the standing wall 10. The standing-wall bending line 2 corresponds to the first bending line.

[0032] The wall material holding piece 11 is provided on the tip side (the side away from the upright-wall bending line 2) of the upright wall 10 that is bent perpendicularly from the wall material fixing wall 1a. The wall material holding piece 11 is cut out so that it overlaps with the gypsum board PB in the front-to-rear direction (the direction perpendicular to the wall material fixing wall 1a) by bending it from the upright wall 10 along a holding piece bending line 3 that is perpendicular to the upright-wall bending line 2. The holding piece bending line 3 is a perforation line formed in the wall material fixing wall 1a, but is not limited to this. The holding piece bending line 3 may also be a recessed groove formed by press working.

[0033] The distance between the upright wall bending line 2 and the wall material holding piece 11 is approximately equal to the thickness of the gypsum board PB. Therefore, when the gypsum board PB is bent along the upright wall bending line 2 and the holding piece bending line 3, the wall material holding piece 11 can hold the gypsum board PB without rattle. However, without being limited to this, the distance between the upright wall bending line 2 and the wall material holding piece 11 may be greater than the thickness of the gypsum board PB. This makes it possible for the wall material holding stud 1 to hold gypsum boards PB of various thicknesses that differ depending on the standard.

[0034] The wall material fixing wall 1a also has a pair of holding piece bending lines 3 at the top and bottom, and upper and lower holding pieces 11a and 11b that can be bent along the holding piece bending lines 3. When the upper and lower holding pieces 11a and 11b are bent along the holding piece bending lines 3, they overlap in the front-to-back direction with the gypsum boards PB on both sides in the left-to-right direction (the short side direction of the wall material holding stud 1). This allows the upper and lower holding pieces 11a and 11b to hold the pair of gypsum boards PB fixed to the left and right sides of the wall material holding stud 1. This allows the worker to perform screw fastening work while holding the gypsum boards PB on both sides abutting the wall material holding stud 1. The holding piece bending lines 3 correspond to the second bending line.

[0035] Furthermore, a cutting guide line 4 is formed on the wall material fixing wall 1a at a position closer to the base end of the standing wall 10 (the side closest to the standing wall bending line 2) than the holding piece bending line 3, to guide the cutting of the leading end side of the standing wall 10. This allows the worker to cut the leading end side of the standing wall 10 along the cutting guide line 4 after attaching and fixing the gypsum board PB to the wall material holding stud 1. This makes it possible to easily dispose of the portion of the gypsum board PB that is no longer needed after it has been fixed. The cutting guide line 4 is a perforated line formed on the wall material fixing wall 1a, but is not limited to this. The cutting guide line 4 may also be a recessed groove as long as it can guide the cutting of the standing wall 10.

[0036] Here, referring to FIG. 5, a description will be given of a modified standing wall 10A and a wall material holding piece 11A. As shown in FIG. 5, the standing wall 10A is bent vertically from the wall material fixing wall 1a along a standing wall bending line 2 extending in the longitudinal direction of the wall material fixing wall 1a (the vertical direction in FIG. 5), and is cut out so as to be able to stand vertically from the wall material fixing wall 1a. Specifically, the standing wall 10A is formed by cutting the wall material fixing wall 1a along a left notch line 5a, an upper notch line 5b, a lower notch line 5c, an upper holding piece separation line 5d, and a lower holding piece separation line 5e. The left notch line 5a is a linear notch line extending vertically. The upper notch line 5b is a notch line having a horizontal portion extending horizontally and a lower protruding portion interposed between the horizontal portions and protruding downward. The lower notch line 5c is a notch line having a horizontal portion extending in the left-right direction and an upper protrusion interposed between the horizontal portions and protruding upward. The upper holding piece separation line 5d is a notch line extending downward from the lower protrusion of the upper notch line 5b to the holding piece bending line 3A. The lower holding piece separation line 5e is a notch line extending upward from the upper protrusion of the lower notch line 5c to the holding piece bending line 3A. As a result, when the upright wall 10 is bent from the wall material fixing wall 1a, it becomes a protruding wall having a substantially rectangular shape.

[0037] Wall material holding piece 11A is provided on the tip side of standing wall 10A that is bent perpendicularly from wall material fixing wall 1a. Wall material holding piece 11A is bent from standing wall 10A along holding piece bending line 3A that is perpendicular to standing wall bending line 2, and is cut out so that it overlaps with gypsum board PB in the front-to-rear direction (the direction perpendicular to wall material fixing wall 1a). As shown in Fig. 5, the left-right dimensions of the wall material holding piece 11A and the holding piece bending line 3A are larger than those of the wall material holding piece 11 and the holding piece bending line 3 shown in Fig. 4. This improves the strength of the wall material holding piece 11A, making it possible to stably hold a heavier gypsum board PB.

[0038] <How to fix gypsum board PB> Next, we will explain how to fix a gypsum board PB to a steel partition SP that has wall material holding studs 1. Note that the method for fixing a gypsum board PB explained below is based on the premise that it will be performed by a single worker. We will also explain the method assuming that the steel partition SP, which is the base structure, has already been installed in the building.

[0039] Fig. 6 shows the flow of the method for fixing the gypsum board PB. As shown in Fig. 6, first, the standing wall 10 is bent from the wall material fixing wall 1a of the wall material holding stud 1 (step S1, first bending step). Specifically, the standing wall 10 is bent vertically forward from the wall material fixing wall 1a, causing the standing wall 10 to stand up.

[0040] FIG. 7 shows a steel partition SP in which an upright wall 10 is erected from a wall surface material fixing wall 1a, and FIG. 8 is an enlarged view of a portion A1 of FIG. 8, the upright wall 10 is bent along an upright-wall bending line 2 extending in the longitudinal direction (vertical direction) of the wall-retaining stud 1, and stands upright forward from the wall-material fixing wall 1a. Furthermore, by erecting the upright wall 10, an opening 12 is formed in the wall-material fixing wall 1a. Furthermore, the upright wall bending line 2 is provided in the center in the short direction (left-right direction) of the wall material holding stud 1. Therefore, the gypsum board PB can be leaned against either the left or right side of the upright wall 10.

[0041] Next, the gypsum board PB is placed against the left side of the wall material holding stud 1 (step S2, abutting step). Specifically, the gypsum board PB is placed against and abuts against the wall material fixing wall STa of the stud ST installed to the left of the wall material holding stud 1, and the wall material fixing wall 1a to the left of the upright wall 10 of the wall material holding stud 1.

[0042] Next, the wall material holding piece 11 is folded (step S3, second folding step). Specifically, the upper holding piece 11a is folded to the left so that the upper holding piece 11a overlaps the gypsum board PB in the front-to-rear direction (the direction perpendicular to the wall material fixing wall 1a).

[0043] FIG. 9 shows the steel partition SP and the gypsum board PB with the upper holding piece 11a bent leftward, and FIG. 10 is an enlarged view of a portion A2 of FIG. As shown in Figure 10, the upright wall 10 stands forward and abuts against an end surface PB1 of the gypsum board PB. The upper holding piece 11a is bent along a holding piece bending line 3 that is perpendicular to the upright wall bending line 2, and is positioned in front of the gypsum board PB that abuts against the left side of the wall material fixing wall 1a. This prevents the gypsum board PB from falling in a direction away from the wall material holding stud 1, and keeps it leaning against the wall material holding stud 1 and abutting against it.

[0044] Next, the gypsum board PB is fixed to the wall material holding stud 1 and the stud ST (step S4, fixing step). Specifically, the gypsum board PB is fixed by fastening it with screws to the wall material fixing wall 1a of the wall material holding stud 1 and the wall material fixing wall STa of the stud ST.

[0045] Figure 11 shows a steel partition SP to which a gypsum board PB has been fastened with screws. As shown in Figure 11, screws SC are driven at predetermined intervals in the vertical direction along the wall material fixing wall 1a of the wall material holding stud 1. Furthermore, although not shown in Figure 11, screws SC are driven at predetermined intervals in the vertical direction along the wall material fixing wall STa of the stud ST located to the left of the wall material holding stud 1. In this way, the gypsum board PB is fixed to the steel partition SP.

[0046] Next, the gypsum board PB is placed against the right side of the wall material holding stud 1 (step S5, abutting step). Specifically, the gypsum board PB is placed against and abuts against the wall material fixing wall STa of the stud ST installed to the right of the wall material holding stud 1, and the wall material fixing wall 1a to the right of the upright wall 10 of the wall material holding stud 1.

[0047] Next, the wall material holding piece 11 is folded (step S6, second folding step). Specifically, by folding the lower holding piece 11b to the right, the lower holding piece 11b is positioned so as to overlap the gypsum board PB in the front-to-rear direction.

[0048] Fig. 12 shows the steel partition SP and the gypsum board PB with the lower holding piece 11b bent to the right, and Fig. 13 is an enlarged view of part A3 in Fig. 12. Note that in Figs. 12 and 13, the screws SC driven in to fix the gypsum board PB in step S4 are not shown. 13, the lower holding piece 11b is bent along a holding piece bending line 3 that is perpendicular to the upright wall bending line 2, and is positioned in front of the gypsum board PB that abuts on the right side of the wall material fixing wall 1a. Therefore, the gypsum board PB is held leaning against the wall material holding stud 1.

[0049] Next, the right-side gypsum board PB is fixed to the wall material holding stud 1 and the stud ST (step S7, fixing step). As in step S4 described above, the gypsum board PB is fastened to the wall material holding stud 1 and the stud ST installed to the right of the wall material holding stud 1 with screws. In this way, the left and right gypsum boards PB are fixed to the steel partition SP. Furthermore, by repeating the above-described procedure, two or more gypsum boards PB can be fixed to the steel partition SP.

[0050] Finally, the standing wall 10 is cut (step S8, cutting step). Specifically, the tip of the standing wall 10 is twisted left and right and front and rear along the cutting guide lines 4 formed on the standing wall 10. As a result, the tip of the standing wall 10 is cut from the base end, guided by the cutting guide lines 4. Therefore, after the gypsum board PB is fixed, the unnecessary portion can be easily disposed of.

[0051] FIG. 14 shows a partition wall PW in which the tip of the upright wall 10 is cut along the cutting guide line 4. As shown in Fig. 14, the tip of the upright wall 10 that protrudes forward of the gypsum board PB is cut along the cutting guide line 4. Although not shown in Fig. 14, after the tip is cut, the cutting guide line 4 may be covered with a filler such as putty. This makes it possible to prevent a loss of design quality due to the cutting guide line 4 being exposed.

[0052] The above-described method of fixing the gypsum board PB to the wall material holding stud 1 allows a worker to perform screw fastening work while the gypsum board PB is held in contact with the wall material holding stud 1. This allows a worker to fix the gypsum board PB to the base structure by himself, and since there is no need to manually support the heavy gypsum board PB, workability and safety can be improved.

[0053] The above describes a wall material holding stud 1 according to one embodiment of the present invention and a method for fixing a gypsum board PB to the wall material holding stud 1. However, the above-described embodiment is merely an example to facilitate understanding of the present invention and does not limit the present invention. In the above-described embodiment, the wall material holding stud 1 for fixing a wall material (gypsum board PB) and the method for fixing the wall material to the wall material holding stud 1 were described, but the present invention is not limited to this. The present invention may also be applied to a ceiling panel holding stud for fixing a ceiling panel and a method for fixing a ceiling panel to the ceiling panel holding stud. This allows a single worker to fix the ceiling panel to the base structure, and improves the ease and safety of the fixing work.

[0054] In addition, in the above-described embodiment, the construction surface material is described as an example of a gypsum board PB, but the construction surface material is not limited to the gypsum board PB. The construction surface material may be a construction surface material other than the gypsum board PB, for example, a particle board.

[0055] Furthermore, in the above-described embodiment, the holding piece bending line 3 has been described as extending in a direction perpendicular to the standing-wall bending line 2, but this is not limited to this. The holding piece bending line 3 is a bending line different from the standing-wall bending line 2, and it is sufficient that the wall material holding piece 11 can overlap the gypsum board PB in the front-to-rear direction by bending along the holding piece bending line 3. This makes it possible for the wall material holding piece 11 to hold the gypsum board PB in an abutting state, as in the above-described embodiment.

[0056] In the above embodiment, the standing wall 10 is described as being formed by cutting out the left notch line 5a, the upper notch line 5b, and the lower notch line 5c, but the number, shape, and configuration of the notch lines are not limited to those described above. It is sufficient that the wall material fixing wall 1a is cut out so that the standing wall 10 stands up so as to protrude forward from the gypsum board PB, and the wall material holding piece 11 can be bent to a position where it overlaps with the gypsum board PB in the front-to-rear direction. [Explanation of symbols]

[0057] 1 Wall material retention stud (surface material retention stud) 1a Wall material fixed wall 1b side wall 1c unevenness 2. Standing wall bending line (first bending line) 3. 3A: Retaining piece bending line (second bending line) 4 Cutting guide line 5a Left notch line 5b Upper notch line 5c Lower notch line 5d Upper holding piece separation line 5e Lower holding piece separation line 10, 10A Standing Wall 11, 11A Wall material holding piece 11a Upper holding piece 11b Lower holding piece 12 aperture PB gypsum board (construction surface material) PW Partition Wall R1 upper runner R2 lower runner SC Vis SP Steel Partition ST Stud STa Wall material fixed wall

Claims

1. A long surface material holding stud that is interposed between a pair of runners and to which a construction surface material is fixed, A surface material fixing wall to which the construction surface material is fixed is provided, The surface material fixing wall is a standing wall that is cut out so as to be able to stand up from the surface material fixing wall by bending the surface material fixing wall perpendicularly along a first bending line that extends in the longitudinal direction of the surface material holding stud; A panel retaining stud characterized by having: a construction panel provided at the tip end of the vertically bent upright wall, which is fixed to the panel fixing wall by bending it from the upright wall along a second bending line different from the first bending line; and a panel retaining piece cut out so as to overlap in a direction perpendicular to the panel fixing wall.

2. The surface material retaining stud according to claim 1, characterized in that the surface material fixing wall has the first fold line at the center of the short side direction perpendicular to the long side direction of the surface material retaining stud.

3. The panel fixing wall is provided at the tip of the upright wall, and is bent from the upright wall along a pair of second bending lines different from the first bending lines, to have a pair of panel fixing pieces that overlap in a direction perpendicular to the panel fixing wall and a pair of construction panel fixing pieces fixed to both sides of the short side of the panel fixing stud.

4. The surface material retaining stud described in claim 1, characterized in that the surface material fixing wall is located closer to the base end of the standing wall than the second bending line and has a cutting guide line that guides the cutting of the tip end of the standing wall.

5. 2. A surface material retaining stud according to claim 1, wherein the surface material fixing wall has the upstanding wall and the surface material retaining piece on both ends in the longitudinal direction.

6. A method for fixing a construction surface material to a long surface material holding stud interposed between a pair of runners, comprising: a first bending step of bending the construction surface material vertically from the surface material fixing wall that fixes the construction surface material along a first bending line extending in the longitudinal direction of the surface material holding stud installed between the pair of runners, thereby bending an upright wall that is cut out so as to be able to stand from the surface material fixing wall vertically; a contacting step of contacting the construction surface material with the surface material fixing wall of the surface material holding stud; a second bending process in which a surface material holding piece is provided at the tip of the vertically bent upright wall, and is bent from the upright wall along a second bending line different from the first bending line, thereby bending the surface material holding piece cut out so as to overlap the construction surface material fixed to the surface material fixing wall in a direction perpendicular to the surface material fixing wall, thereby holding the construction surface material abutted against the surface material fixing wall; a fixing step of fixing the construction surface material to the surface material fixing wall of the surface material holding stud.

7. 7. The method for fixing a construction surface material according to claim 6, further comprising, after the fixing step, a cutting step of cutting the tip of the standing wall along a cutting guide line formed on the base end side of the standing wall from the second bending line and guiding the cutting of the tip of the standing wall.

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