Steel frame

Abstract

To provide a steel frame capable of being efficiently manufactured.SOLUTION: A steel frame 1 comprises: a pair of long vertical frames 2; and a plurality of horizontal frames 3a to 3d installed across the pair of vertical frames 2. The pair of vertical frames 2 respectively have a fin part 21, which is formed along a length direction and protrudes in a direction approaching to each other. The horizontal frames 3a to 3d respectively comprises: a body part 34, which is formed into a groove shape consisting of two lateral plate parts 30 extending in the length direction and a connection plate part 31 that connects lateral edges on one side of the lateral plate part 30; and flange parts 32, which are respectively formed from lateral edges on the other side of the lateral plate part 30 in a direction in parallel with the connection plate part 31. Edges of the flange parts 32 abut against and are connected to the fin part 21 of the vertical frame 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a steel frame. [Background technology]

[0002] Steel frames, such as steel interior wall frames, which serve as the base for the interior wall materials of buildings, have been known for some time. A steel interior wall frame is formed by erecting multiple horizontal frames between a pair of vertical frames on the left and right. Moisture-proof sheets and heat insulating materials are attached to the frame, and the frame is connected to the outer frame of the building. Interior wall materials such as gypsum boards are fastened with screws to form the interior wall surface of the building. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-70507 Summary of the Invention [Problem to be solved by the invention]

[0004] When manufacturing steel frames, if the vertical and horizontal frames can be assembled from the same direction, it is more efficient because there is no need to turn them over. Also, when joining members together, it is more efficient if there is no need to insert the end of one member into the opening of the other member.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a steel frame that can be manufactured efficiently. [Means for solving the problem]

[0006] A first steel frame that solves the above problem comprises a pair of long vertical frames and a number of horizontal frames installed between the pair of vertical frames, the pair of vertical frames having fin portions that protrude toward each other and are formed along the longitudinal direction, the horizontal frames having two side plate portions extending in the longitudinal direction and a connecting plate portion that connects one side edge of the side plate portions, a main body portion formed in a groove shape, and flange portions that are each formed from the other side edge of the side plate portions in a direction parallel to the connecting plate portions, and the ends of the flange portions of the horizontal frames abut and are joined to the fin portions of the vertical frames.

[0007] The second steel frame is the first steel frame, further comprising a reinforcing plate material joined to the flange portion between the side plate portions, the thickness of the reinforcing plate material being shorter than the width of the side plate portions, the reinforcing plate material being joined to the flange portion via a spacer, and the reinforcing plate material and the connecting plate portion being positioned flush with each other.

[0008] The third steel frame is the first steel frame, further comprising a reinforcing plate material joined to the flange portion between the side plate portions, the thickness of the reinforcing plate material being equal to the width of the side plate portions.

[0009] The fourth steel frame is an outer peripheral horizontal frame in any one of the first to third steel frames, in which two of the horizontal frames are respectively installed on both ends of the pair of vertical frames in the longitudinal direction, and form a rectangular outer periphery together with the pair of vertical frames, and the two outer peripheral horizontal frames are formed so that the flange portions on the outer periphery of each frame extend in directions approaching each other from the other side edge of the side plate portion.

[0010] The fifth steel frame is an outer periphery horizontal frame in any one of the first to third steel frames, in which two of the horizontal frames are respectively installed at both ends of the longitudinal direction of the pair of vertical frames, forming a rectangular outer periphery together with the pair of vertical frames, and the two outer periphery horizontal frames are formed with outer periphery plates extending in the opposite direction to the side plate portions from the outer side edges of the outer periphery flange portions of each outer periphery side.

[0011] The sixth steel frame is any one of the first to fifth steel frames, in which an L-angle is installed on two of the horizontal frames, and an opening base plate is formed on each of the flange portions of the two horizontal frames that are close to each other.

[0012] The seventh method for manufacturing a steel frame is a method for manufacturing a steel frame described in any one of the first to sixth methods, and includes the steps of placing the horizontal frame on a work surface, placing the vertical frame so that the fin portion abuts on the end of the horizontal frame, and joining the flange portion of the horizontal frame and the fin portion of the vertical frame. [Effects of the Invention]

[0013] According to the first steel frame, the ends of the flanges of the horizontal frames abut against the fins of the pair of vertical frames that protrude in the direction in which they approach each other, so the vertical and horizontal frames can be easily joined without the need to insert the horizontal frame into the vertical frame. Furthermore, because the fins and flanges can be accessed while they are in abutting contact, joining methods that require a joining device or jig to be placed on both sides of the parts to be joined, such as caulking or spot welding, can be used.

[0014] According to the second steel frame, the reinforcing plate material is joined to the flange portion via a spacer, so that the reinforcing plate material and the connecting plate portion can be arranged flush with each other without having to design the width of the side plate portion to match the thickness of the reinforcing plywood. This increases the design freedom of the horizontal frame according to the strength of the steel frame and the shape required when installing the steel frame.

[0015] According to the third steel frame, the thickness of the reinforcing plate is equal to the width of the side plate portion, and by joining the reinforcing plate directly to the flange portion, the reinforcing plate and the connecting plate portion can be made flush, eliminating the need to install spacers and making it easier to manufacture the steel frame.

[0016] According to the fourth steel frame, the flange portions on the outer periphery of the two horizontal frames that make up the outer periphery frame are formed to extend from the other side edge of the side plate portions in a direction approaching each other, so that the side plate portions are arranged on the outer periphery edge of the steel frame, which can form a joint surface when the steel frame is installed on a building and can form a surface that serves as a base when another component is attached to the steel frame.

[0017] According to the fifth steel frame, the two horizontal frames that make up the outer perimeter frame have outer perimeter plates formed parallel to the side plate portions from the outer flange portion, so that the outer perimeter plates can form the joint surface when installing the steel frame on a building, and can also form the base surface when attaching another component to the steel frame.

[0018] According to the sixth steel frame, L-angles are installed on two of the horizontal frames, and opening base plates are formed on each of the flange portions of the two horizontal frames that are close to each other, so that the L-angles and opening base plates can form a base for an opening inside the steel frame.

[0019] The seventh method for manufacturing a steel frame includes the steps of placing a horizontal frame on a work surface, placing a vertical frame so that the fin portion abuts the end of the horizontal frame, and joining the flange portion of the horizontal frame to the fin portion of the vertical frame.Therefore, when assembling the vertical frame and horizontal frame to form the steel frame, work can be done from one side of the steel frame, eliminating the need to flip the steel frame and making the manufacturing process easier. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is an exploded perspective view of a steel frame according to a first embodiment; [Figure 2] 1 is a perspective view illustrating the external configuration of a steel frame according to a first embodiment. FIG. [Figure 3] FIG. 2 is a cross-sectional view illustrating a state in which the steel frame of the first embodiment is assembled. [Figure 4] 1 is an exploded perspective view of a steel frame according to a first embodiment to which a reinforcing plate is provided; FIG. [Figure 5] FIG. 3 is a cross-sectional view illustrating a state in which a reinforcing plate is attached to the steel frame of the first embodiment. [Figure 6] 1 is a perspective view illustrating a step of joining a base vertical frame and a horizontal frame in a manufacturing process of a steel frame having an opening according to a first embodiment. FIG. [Figure 7] 1 is a perspective view illustrating a step of joining a vertical frame and a horizontal frame in a manufacturing process of a steel frame having an opening according to a first embodiment. FIG. [Figure 8] 1 is a perspective view illustrating the external configuration of a steel frame having an opening according to a first embodiment. FIG. [Figure 9] 10 is an exploded perspective view of a steel frame according to a second embodiment; [Figure 10] FIG. 10 is a perspective view illustrating the external configuration of a steel frame according to a second embodiment. [Figure 11] FIG. 10 is a cross-sectional view illustrating a state in which a reinforcing plate is attached to a steel frame according to a second embodiment. [Figure 12] FIG. 10 is a cross-sectional view illustrating a state in which a reinforcing plate is attached to a steel frame according to a second embodiment. [Figure 13] FIG. 10 is a perspective view illustrating a step of joining an L-angle and a horizontal frame in a manufacturing process of a steel frame having an opening according to a second embodiment. [Figure 14] FIG. 10 is a perspective view illustrating a step of joining a vertical frame and a horizontal frame in a manufacturing process of a steel frame having an opening according to a second embodiment. [Figure 15] FIG. 10 is a perspective view illustrating the external configuration of a steel frame having an opening according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0021] [First embodiment] A first embodiment of a steel frame 1 of the present invention will be described below with reference to Figs. 1 to 8. As shown in Figs. 1 and 2, the steel frame 1 is formed into a rectangular surface by combining a plurality of horizontal frames 3a, 3b between a pair of vertical frames 2. The steel frame 1 is, for example, an interior wall frame, a floor panel, a ceiling frame, a partition frame, or a parting wall frame, and is a flat base material formed facing the indoor side. However, the steel frame 1 is not limited to this, and may be any building material that can serve as a flat base material formed indoors or outdoors.

[0022] <Configuration of each part of steel frame 1> As shown in FIG. 1 , the pair of vertical frames 2 each have two long vertical frame bodies 20 and fin portions 21 that protrude from each vertical frame body 20 in directions approaching each other and are formed over the entire length of the vertical frame body 20 in the longitudinal direction. The vertical frame body 20 is formed by bending a steel plate into a rectangular tube shape, with the fin portions 21 protruding from opposing surfaces. The fin portions 21 are long, flat plates formed by overlapping and joining the steel plates that form the vertical frame body 20. The fin portions 21 may be provided with insertion holes 22 at the positions where they join with the horizontal frames 3 a, 3 b, into which fasteners such as rivets 4 or bolts can be inserted. Note that the vertical frame 2 of the present invention is not limited to those provided with insertion holes 22. For example, if the method of joining the vertical frame 2 and the horizontal frames 3a, 3b is spot crimping, in which the overlapping parts of the vertical frame 2 and the horizontal frames 3a, 3b are half-punched and joined together, or if spot welding is used, in which the overlapping parts of the vertical frame 2 and the horizontal frames 3a, 3b are heated and welded with an electric current, there is no need to provide the insertion hole 22.

[0023] In this embodiment, four horizontal frames 3a, 3b are installed between a pair of vertical frames 2. The number of horizontal frames 3a, 3b is not limited to four and may be three or less, or five or more. The multiple horizontal frames 3a, 3b are installed parallel to each other with a gap between them. The horizontal frames 3a, 3b are formed into a long length by bending a steel plate. The horizontal frames 3a, 3b each have two side plate portions 30 extending in the longitudinal direction and a connecting plate portion 31 connecting one side edge of the side plate portions 30 to form a main body portion 34 with a U-shaped cross section, and a flange portion 32 formed by bending from the other side edge of the side plate portion 30 in a direction parallel to the connecting plate portion 31.

[0024] The side plate portions 30 are formed in flat plate shapes on both sides of the horizontal frames 3a, 3b in the longitudinal direction of the vertical frame 2. The two side plate portions 30 are arranged parallel to each other, and a connecting plate portion 31 connects one side edge of the side plate portions 30 to the entire length of the horizontal frames 3a, 3b. The flange portion 32 is formed by protruding from the other side edge of the side plate portion 30 in a direction parallel to the connecting plate portion 31. Of the horizontal frames 3a, 3b arranged parallel to each other at a distance, the two horizontal frames 3a, 3b arranged at both ends are outer peripheral horizontal frames 3a that are installed at both ends of the pair of vertical frames 2 in the longitudinal direction and form the rectangular outer periphery of the steel frame 1 together with the pair of vertical frames 2. A plurality of intermediate horizontal frames 3b that do not form part of the outer periphery are arranged at equal intervals between the two outer peripheral horizontal frames 3a.

[0025] The intermediate horizontal frame 3b is formed with flanges 32 that extend from the other side edges of the two side plate portions 30 in directions that separate them from each other, and the cross section of the intermediate horizontal frame 3b is formed to have a hat-shaped shape. In addition, the two outer peripheral horizontal frames 3a that form the outer periphery are formed with flanges 32 that extend in directions that lead toward the center of the steel frame 1. Therefore, the flanges 32 on the outermost sides are formed to extend in directions that lead toward each other.

[0026] The horizontal frames 3a, 3b are joined by having their flanges 32 abut against the fins 21 of the vertical frames 2. This results in the side plate portions 30 being arranged on the outer periphery of the steel frame 1, forming a joining surface when the steel frame 1 is installed on a building, and also forming a surface that serves as a base when another member is attached to the steel frame 1. Fixing holes 33 for joining to the fins 21 may be formed at the ends of the flanges 32.

[0027] As shown in Figure 3, the flange portions 32 of the horizontal frames 3a, 3b are joined to the fin portions 21 of the vertical frames 2 by overlapping the fixing holes 33 formed at the ends of the flange portions 32 with the insertion holes 22 of the fin portions 21, and inserting, for example, rivets 4 into these insertion holes 22 and fixing holes 33, thereby crimping and fixing the flange portions 32 and fin portions 21.

[0028] In this embodiment, the joining of the horizontal frames 3a, 3b and the vertical frame 2 is not limited to the rivet caulking joint described above. For example, spot caulking may be used, in which the vertical frame 2 and the horizontal frames 3a, 3b themselves are plastically deformed to join them without using rivets 4. Joining with screws or bolts and nuts may also be used. Furthermore, the joining is not limited to dry joining, and may be spot welding, for example.

[0029] <Regarding the steel frame 1 on which the reinforcing plate material 5 is provided> As shown in Figures 4 and 5, the steel frame 1 is reinforced as needed by attaching reinforcing plates 5 between some or all of the horizontal frames 3a, 3b. The reinforcing plates 5 are, for example, wooden plywood. However, the reinforcing plates 5 are not limited to this and may be made of any metal or resin plate as long as they are strong enough to provide reinforcement. The reinforcing plates 5 are rectangular flat plates that can be inserted between a pair of vertical frames 2 and between two adjacent horizontal frames 3a, 3b. The ends of the reinforcing plates 5 that contact the two horizontal frames 3a, 3b are each joined to a flange portion 32 via a first spacer 11. The ends of the reinforcing plates 5 that contact the pair of vertical frames 2 are each joined to a fin portion 21 via a second spacer 12.

[0030] The first spacer 11 and the second spacer 12 are, for example, wooden lumber. The sum of the thickness β of the reinforcing plate 5 and the thickness γ of the first spacer 11, and the sum of the thickness β of the reinforcing plate 5 and the thickness γ of the second spacer 12, are equal to the width direction length α of the side plate portion 30. Therefore, the reinforcing plate 5 is positioned flush with the connecting plate portion 31 by the first spacer 11 and the second spacer 12. Note that the first spacer 11 and the second spacer 12 are not limited to wooden lumber, and are not limited to the above-mentioned material or shape as long as they can adjust the reinforcing plate 5 and the connecting plate portion 31 to be flush with each other. For example, they may be made of metal. Note that the "spacer" in the present invention corresponds to the first spacer 11 in this embodiment.

[0031] The flange 32 and fin 21 of the reinforcing plate 5 are joined by, for example, fixing the first spacer 11 to the flange 32 with screws, fixing the second spacer 12 to the fin 21 with screws, and then driving screws into the reinforcing plate 5 at a predetermined pitch to fix the reinforcing plate 5 and the spacers together. Note that the joining of the reinforcing plate 5 and the flange 32 is not limited to fixing with screws, and may be joined by, for example, a tacker (not shown), or by attaching with adhesive or tape, or by sandwiching with a moisture-proof sheet (not shown).

[0032] In this way, by connecting the reinforcing plate 5 to the flange 32 and the fin 21 via the spacer, the reinforcing plate 5 and the connecting plate 31 are positioned flush with each other. As a result, no step is formed between the reinforcing plate 5 and the connecting plate 31, so that when attaching a desired surface material such as a wall surface material, floor surface material, or ceiling surface material to the steel frame 1, it can be attached stably and accurately.

[0033] <Regarding the steel frame 1 in which the opening 6 is provided> The steel frame 1 may be provided with an opening 6, as shown in Fig. 8. For example, window frames may be provided in the interior wall frames, and openings 6 such as inspection hatches and entrances to underfloor or attic storage may be provided in the floor panels or ceiling frames. In such cases, the steel frame 1 is formed to serve as a base for the edges of the openings 6.

[0034] As shown in Figures 6 to 8, the opening 6 of this embodiment is formed by installing a base vertical frame 7, which serves as a base for the opening 6, between two intermediate horizontal frames 3b. The base vertical frame 7 is formed to have the same cross-sectional shape as the two intermediate horizontal frames 3b. Like the intermediate horizontal frames 3b, the base vertical frame 7 has a main body 74 formed to have a U-shaped cross section, with two side plate portions 70 and a connecting plate portion 71 connecting one side edge of the side plate portions 70, and flange portions 72 extending from the other side edges of the two side plate portions 70 in directions away from each other, so that the cross-sectional shape is hat-shaped. The base vertical frame 7 is arranged so as to be perpendicular to the two intermediate horizontal frames 3b, and the longitudinal ends of the base vertical frame 7 overlap with the flanges 32 of the two intermediate horizontal frames 3b, and the flanges 32 of the intermediate horizontal frames 3b and the flanges 72 of the base vertical frame 7 are fixed together by, for example, rivets, thereby forming the base of the opening 6. Note that the joining of the flanges 32 of the intermediate horizontal frames 3b and the flanges 72 of the base vertical frame 7 is not limited to rivet fixing, and various joining methods such as caulking, screw joining, and spot welding can be used for joining.

[0035] <About the manufacturing method of steel frame 1> The work of manufacturing the steel frame 1 is basically performed in a factory, and the completed steel frame 1 is transported to the construction site. When manufacturing the steel frame 1, as shown in FIG. 1, first, the horizontal frames 3a, 3b are placed on the work surface of a surface plate. The horizontal frames 3a, 3b are arranged with the connecting plate portions 31 of the main body facing downward, and the multiple horizontal frames 3a, 3b that make up the steel frame 1 are placed parallel to each other with a gap between them. Next, the vertical frames 2 are placed on both sides of the placed horizontal frames 3a, 3b, and are positioned so that the ends of the horizontal frames 3a, 3b and the fin portions 21 of the vertical frames 2 overlap. Then, the fin portions 21 of the vertical frames 2 and the flange portions 32 of the horizontal frames 3a, 3b are joined by a predetermined joining method such as caulking, screw joining, or spot welding.

[0036] When joining the vertical frame 2 and the horizontal frames 3a, 3b to form the steel frame 1 in this way, the horizontal frames 3a, 3b are placed side by side, and then the vertical frame 2 is placed directly above the horizontal frames 3a, 3b, allowing the horizontal frames 3a, 3b and the vertical frames 2 to be positioned appropriately. Furthermore, since the upper surfaces of the fin portions 21 of the vertical frame 2 and the lower surfaces of the flange portions 32 of the horizontal frames 3a, 3b are accessible from the outside, joining can be done by abutting tools on each surface, making the work easy even when the joining method is caulking or spot welding, which requires work from both sides. In this way, the steel frame 1 can be formed simply by placing the horizontal frames 3a, 3b and the vertical frames 2 from above, eliminating the need for work such as inserting them from a different direction or turning them upside down, and facilitating the manufacturing process.

[0037] As described above, once the vertical frame 2 and the horizontal frames 3a, 3b are combined to form the steel frame 1, the steel frame 1 can be formed as an interior wall frame by attaching, for example, a moisture-proof sheet or heat insulating material (not shown) on top of it. When the steel frame 1 is an interior wall frame, during manufacturing work, the steel frame 1 is manufactured by placing it on a surface plate with the bottom side facing indoors and the top side facing outdoors, eliminating the need to turn it upside down and facilitating the manufacturing work. Note that even when the steel frame 1 is a frame other than an interior wall frame, for example, a floor panel, ceiling frame, partition frame, or parting wall frame, work such as attaching heat insulating material is performed to secure the necessary components and form the respective frames.

[0038] When a reinforcing plate 5 is provided on the steel frame 1, as shown in FIGS. 4 and 5 , the first spacer 11 is fixed to the flanges 32 of the horizontal frames 3a and 3b with screws, and the second spacer 12 is fixed to the fins 21 of the vertical frames 2 with screws. The reinforcing plate 5 is then fixed with screws via the first spacer 11 and the second spacer 12. When fixing the reinforcing plate 5 to the steel frame 1, the steel frame 1 can be turned upside down with the vertical frames 2 and the horizontal frames 3a and 3b assembled. Note that the first spacer 11 and the second spacer 12 are not limited to wooden timbers, and the method of fixing the reinforcing plate 5 to the fins 21 is not limited to fixing with screws. Furthermore, the reinforcing plate 5 may be fixed to the fins 21 after the first spacer 11 and the second spacer 12 are fixed to the fins 21.

[0039] To form an opening 6 in a steel frame 1, as shown in FIG. 6, first, before placing the horizontal frames 3a and 3b side by side, two base vertical frames 7 are placed parallel to each other. Then, the intermediate horizontal frames 3b are placed so that they overlap both ends of the base vertical frames 7, and the flanges 72 of the base vertical frames 7 and the flanges 32 of the intermediate horizontal frames 3b are overlapped and joined. Then, as shown in FIG. 7, the vertical frames 2 are placed on both sides of the placed horizontal frames 3a and 3b, and the ends of the horizontal frames 3a and 3b are positioned so that the fins 21 of the vertical frames 2 overlap. Then, as shown in FIG. 8, the fins 21 of the vertical frames 2 and the flanges 32 of the horizontal frames 3a and 3b are joined by a predetermined joining method such as caulking, screw joining, or spot welding. Even in the case of a steel frame 1 in which an opening 6 is formed, there is no need to turn the frame upside down, making the manufacturing process easier.

[0040] Second Embodiment Next, a second embodiment of a steel frame 1 of the present invention will be described with reference to Figures 9 to 15. Like the steel frame 1 of the first embodiment, the steel frame 1 of the second embodiment is formed into a rectangular surface by combining a pair of vertical frames 2 with a plurality of horizontal frames 3c, 3d, and like the steel frame 1 of the first embodiment, it may be made of any building material that can serve as the base for a flat surface to be formed indoors or outdoors. Note that the same components as those of the first embodiment will be assigned the same reference numerals and descriptions thereof will be omitted.

[0041] <Configuration of each part of steel frame 1> The pair of vertical frames 2 has the same configuration as in the first embodiment. As shown in Fig. 9, the pair of vertical frames 2 has two long vertical frame bodies 20 and fin portions 21 that protrude from each vertical frame body 20 in directions approaching each other and are formed over the entire length of the vertical frame body 20 in the longitudinal direction. In this embodiment, the fin portions 21 are formed at a position offset by the thickness β of the reinforcing plate material 5 from one surface of the vertical frame 2 facing in the out-of-plane direction of the steel frame 1.

[0042] The fin portions 21 may be provided with insertion holes 22 at the positions where they are joined to the horizontal frames 3c, 3d, into which fasteners such as rivets 4 or bolts can be inserted. Note that the vertical frames 2 of the present invention are not limited to those provided with insertion holes 22. For example, if the method of joining the vertical frames 2 and the horizontal frames 3c, 3d is spot caulking, in which overlapping portions of the vertical frames 2 and the horizontal frames 3c, 3d are half-punched and then joined together, or if spot welding is used, in which overlapping portions of the vertical frames 2 and the horizontal frames 3c, 3d are heated and welded with an electric current, then there is no need to provide the insertion holes 22.

[0043] The horizontal frames 3c and 3d have the same configuration as in the first embodiment. As in the first embodiment, the horizontal frames 3c and 3d each have a main body 34 formed with a U-shaped cross section by two side plate portions 30 and a connecting plate portion 31 connecting one side edges of the side plate portions 30, and flange portions 32 formed by bending from the other side edges of the side plate portions 30 in a direction parallel to the connecting plate portion 31.

[0044] The two side plate portions 30 are arranged parallel to each other, and the widthwise length δ of the side plate portions 30 is formed to be equal to the thickness β of the reinforcing plate material 5. As a result, the connecting plate portion 31 and the reinforcing plate material 5 are arranged flush. Of the horizontal frames 3c, 3d arranged parallel to each other at a distance from each other, the two horizontal frames 3c arranged at both ends are outer periphery horizontal frames 3c that are installed at both ends of the longitudinal direction of a pair of vertical frames 2 and, together with the pair of vertical frames 2, form the outer periphery of the steel frame 1. A plurality of intermediate horizontal frames 3d that do not form part of the outer periphery are arranged at equal intervals between the two outer periphery horizontal frames 3c.

[0045] 10, the horizontal frames 3c, 3d are joined by having the flanges 32 abut against the fins 21 of the vertical frames 2. This results in the side plate portions 30 being arranged on the outer periphery of the steel frame 1, forming a joining surface when the steel frame 1 is installed on a building, and also forming a surface that serves as a base when another member is attached to the steel frame 1. Fixing holes 33 for joining to the fins 21 may be formed at the ends of the flanges 32.

[0046] The flanges 32 of the horizontal frames 3c, 3d and the fins 21 of the vertical frames 2 are joined by overlapping the fixing holes 33 formed at the ends of the flanges 32 with the insertion holes 22 of the fins 21 and inserting rivets 4 into the insertion holes 22 and the fixing holes 33, thereby crimping and fixing the flanges 32 and fins 21. The joining of the flanges 32 and the fins 21 is not limited to rivet crimping, and may be achieved by crimping without using rivets 4, for example, by plastically deforming the vertical frames 2 and the horizontal frames 3c, 3d themselves, such as spot crimping. Furthermore, joining with screws or bolts and nuts is also possible. Furthermore, joining with screws is not limited to dry joining, and may be spot welding, for example.

[0047] The horizontal frames 3c, 3d are formed with flanges 32 extending from the other side edges of the two side plate portions 30 in directions away from each other, and the horizontal frames 3c, 3d are formed with a hat-shaped cross section. The two outer peripheral horizontal frames 3c are formed with outer peripheral plates 35 extending from the outer peripheral side edges of the flanges 32 of each outer peripheral side in the opposite direction to the side plate portions 30. The outer peripheral plates 35 form a surface parallel to the side plate portions 30 and extend in the opposite direction to the side plate portions 30. The outer peripheral plates 35 are formed along the longitudinal direction of the outer peripheral horizontal frame 3c. The outer peripheral plates 35 are formed shorter than the overall length of the outer peripheral horizontal frame 3c in the longitudinal direction, and the outer peripheral plates 35 are not formed at both ends of the outer peripheral horizontal frame 3c in the longitudinal direction. Therefore, the outer peripheral plates 35 do not interfere with the fin portions 21 when the fin portions 21 of the vertical frame 2 and the flanges 32 of the outer peripheral horizontal frame 3c are joined. By forming such an outer peripheral plate 35, the outer peripheral plate 35 can be used as a joining surface when installing the steel frame 1 on a building, and can form a base surface when attaching another component to the steel frame 1.

[0048] <Regarding the steel frame 1 on which the reinforcing plate material 5 is provided> As in the first embodiment, the steel frame 1 of the second embodiment is reinforced by attaching reinforcing plates 5 between some or all of the horizontal frames 3c, 3d as needed, as shown in Figures 11 and 12. The reinforcing plates 5 are the same as those in the first embodiment, so a description thereof will be omitted. In this embodiment, the reinforcing plates 5 are directly joined to the flanges 32 and the fins 21. That is, the reinforcing plates 5 are disposed between the horizontal frames 3c, 3d and between the vertical frames 2, and screws are driven into the ends of the reinforcing plates 5 at a predetermined pitch to join the reinforcing plates 5 to the flanges 32 and the fins 21. In this embodiment, the fin portion 21 is formed at a position offset by the thickness of the reinforcing plate 5 from one surface of the vertical frame 2 facing in the out-of-plane direction of the steel frame 1, and the two side plate portions 30 of the horizontal frames 3c, 3d are formed so that their widthwise lengths are equal to the thickness of the reinforcing plate 5. Therefore, by joining the reinforcing plate 5 to the flange portion 32 and the fin portion 21 without using spacers 11, 12, the reinforcing plate 5 can be formed flush with one surface of the connecting plate portion 31 and the vertical frame 2. Note that the joining of the reinforcing plate 5 and the flange portion 32 is not limited to fixing with screws, and may be joined by, for example, a tacker (not shown), adhesive or tape, or sandwiching with a moisture-proof sheet (not shown).

[0049] In this way, in this embodiment, the reinforcing plate material 5 is positioned flush with the connecting plate portion 31 and one side of the vertical frame 2, so that no step is formed between the reinforcing plate material 5 and the connecting plate portion 31. Therefore, when attaching a desired surface material, such as a wall surface material, floor surface material, or ceiling surface material, to the steel frame 1, it can be attached stably and accurately.

[0050] <Regarding the steel frame 1 in which the opening 6 is provided> The steel frame 1 in which the opening 6 of the second embodiment is provided is, as in the first embodiment, an opening 6 such as a window frame, door, or inspection hatch in an interior wall frame, an inspection hatch in a floor panel or ceiling frame, or an entrance to underfloor or attic storage, and the steel frame 1 is formed to serve as a base for the edge of the opening 6.

[0051] As shown in Figures 13 to 15, the opening 6 of this embodiment includes two L-shaped angles 8 mounted parallel to the vertical frame 2 at a distance from each other on two intermediate horizontal frames 3d of the horizontal frames 3c, 3d. One surface of each L-shaped angle 8 abuts against the flange 32 of the intermediate horizontal frame 3d, and both ends of the L-shaped angle 8 are joined to the flange 32. The joining of the L-shaped angle 8 and the flange 32 may be by rivet crimping, spot crimping, or other crimping methods, or may be by screws or bolts and nuts. Furthermore, the joining method is not limited to dry joining, and may be spot welding, for example. The other surface of each L-shaped angle 8 is positioned perpendicular to the flange 32 and forms the base of the edge of the opening 6. The base of the opening 6 is not limited to the L-shaped angle 8; any shape and material may be used as long as it functions as the base of the opening 6.

[0052] Additionally, the tips of the flanges 32 of the two intermediate horizontal frames 3d that approach each other are bent at right angles to form opening base plates 36. The other faces of the two L-angles 8 and the two opening base plates 36 form the base for the edge of the rectangular opening 6 on the inside of the steel frame 1. Note that the base for the opening 6 is not limited to the opening base plate 36 formed integrally with the intermediate horizontal frames 3d, but may instead be a separate member fixed thereto that can function as the base for the opening 6.

[0053] <About the manufacturing method of steel frame 1> The method for manufacturing the steel frame 1 of this embodiment, in the case of a steel frame 1 without an opening 6, is the same as that of the first embodiment. That is, as shown in FIG. 9 , first, multiple horizontal frames 3c, 3d are placed parallel to each other at intervals on the work surface of a surface plate with the connecting plate portions 31 facing downward. Vertical frames 2 are then placed on both sides of the placed horizontal frames 3c, 3d so that the ends of the horizontal frames 3c, 3d overlap the fin portions 21 of the vertical frames 2. Then, as shown in FIG. 10 , the fin portions 21 of the vertical frames 2 are joined to the flange portions 32 of the horizontal frames 3c, 3d using a predetermined joining method such as caulking, screw joining, or spot welding. In this manner, by simply placing the vertical frames 2 directly above the horizontal frames 3c, 3d, the horizontal frames 3c, 3d and the vertical frames 2 can be positioned in the appropriate positions. This facilitates the work, even in the case of caulking or spot welding, which requires work from both sides. This eliminates the need for inserting from a different direction or turning the frames upside down, thereby facilitating the manufacturing process.

[0054] 11 and 12, when a reinforcing plate 5 is provided on the steel frame 1, the reinforcing plate 5 is fixed directly to the fins 21 of the vertical frames 2 and the flanges 32 of the horizontal frames 3c, 3d with screws, without providing spacers 11, 12. Note that the fixing of the reinforcing plate 5 is not limited to fixing with screws, and it may be joined by, for example, a stapler, by bonding with adhesive or tape, or by sandwiching with a moisture-proof sheet (not shown).

[0055] When forming an opening 6 in a steel frame 1, first, multiple horizontal frames 3c, 3d are placed on the work surface of a surface plate, as shown in FIG. 13 . The tips of the flanges 32 of two adjacent intermediate horizontal frames 3d are bent at a right angle to form an opening base plate 36. The opening base plate 36 is shorter than the overall length of the intermediate horizontal frame 3d and is formed toward the center of the intermediate horizontal frame 3d. Next, two L-shaped angles 8 are installed between the two adjacent intermediate horizontal frames 3d. The L-shaped angles 8 are placed on both sides of the opening base plate 36, overlapping the flanges 32 of the two adjacent intermediate horizontal frames 3d, and joined to the flanges 32.

[0056] Thereafter, as shown in Fig. 14, vertical frames 2 are placed on both sides of the placed horizontal frames 3c, 3d, and positioned so that the ends of the horizontal frames 3c, 3d overlap the fin portions 21 of the vertical frames 2. Then, as shown in Fig. 15, the fin portions 21 of the vertical frames 2 are joined to the flange portions 32 of the horizontal frames 3c, 3d by a predetermined joining method such as caulking, screw joining, or spot welding. Even in the case of a steel frame 1 in which openings 6 are formed in this way, there is no need to turn it upside down, making the manufacturing process easier.

[0057] It goes without saying that the embodiments of the present invention are not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the concept of the present invention.

[0058] This specification discloses the following techniques: [Appendix 1] A steel frame comprising a pair of long vertical frames and a number of horizontal frames installed between the pair of vertical frames, wherein the pair of vertical frames have fin portions that protrude toward each other and are formed along the longitudinal direction, and the horizontal frames have two side plate portions that extend in the longitudinal direction and a connecting plate portion that connects one side edge of the side plate portions, and have a main body portion that is formed in a groove shape and flange portions that are each formed from the other side edge of the side plate portions in a direction parallel to the connecting plate portions, and the ends of the flange portions of the horizontal frames abut and are joined to the fin portions of the vertical frames.

[0059] According to Supplementary Note 1, the ends of the flanges of the horizontal frames come into contact with the fins of the pair of vertical frames that protrude in the direction in which they approach each other, so the vertical and horizontal frames can be easily joined without the need to insert the horizontal frame into the vertical frame. Furthermore, since the fins and flanges can be accessed while they are in contact, it is possible to use joining methods that require a joining device or jig to be placed on both sides of the parts to be joined, such as caulking or spot welding.

[0060] [Appendix 2] The steel frame of Appendix 1 further comprises a reinforcing plate material joined to the flange portion between the side plate portions, the thickness of the reinforcing plate material being shorter than the width of the side plate portions, the reinforcing plate material being joined to the flange portion via a spacer, and the reinforcing plate material and the connecting plate portion being arranged flush with each other.

[0061] According to Appendix 2, by joining the reinforcing plate material to the flange portion via a spacer, the reinforcing plate material and the connecting plate portion can be arranged flush with each other without having to design the width of the side plate portion to match the thickness of the reinforcing plywood, which increases the design freedom of the horizontal frame depending on the strength of the steel frame and the shape required when installing the steel frame.

[0062] [Appendix 3] The steel frame of Appendix 1 further comprises a reinforcing plate material joined to the flange portion between the side plate portions, and the thickness of the reinforcing plate material is formed equal to the width of the side plate portions.

[0063] According to Appendix 3, by making the thickness of the reinforcing plate equal to the width of the side plate portion and joining the reinforcing plate directly to the flange portion, the reinforcing plate and the connecting plate portion can be made flush, eliminating the need to install spacers and making it easier to manufacture the steel frame.

[0064] [Appendix 4] In the steel frame of Appendix 1, two of the horizontal frames are respectively installed on both ends of the pair of vertical frames in the longitudinal direction to form a rectangular outer peripheral frame, and the two horizontal frames that make up the outer peripheral frame are formed so that the flange portions on the outer periphery of each frame extend in directions approaching each other from the other side edge of the side plate portion.

[0065] According to Appendix 4, the flange portions on the outer periphery of the two horizontal frames that make up the outer periphery frame are formed by extending from the other side edge of the side plate portion in a direction approaching each other, so that the side plate portion is arranged on the outer periphery edge of the steel frame, which can form a joint surface when installing the steel frame on a building and can form a surface that serves as a base when attaching another component to the steel frame.

[0066] [Appendix 5] In the steel frame of Appendix 1, two of the horizontal frames are respectively installed at both ends of the pair of vertical frames in the longitudinal direction to form a rectangular outer peripheral frame, and the two horizontal frames that make up the outer peripheral frame have outer peripheral plates formed from the flange portions on the outer periphery of each frame that are parallel to the side plate portions.

[0067] According to Appendix 5, the two horizontal frames that make up the outer perimeter frame have outer perimeter plates formed from the outer flange to the side plate portion that are parallel to the outer perimeter, so that the outer perimeter plates can form the joint surface when installing the steel frame on a building, and can also form the base surface when attaching another component to the steel frame.

[0068] [Appendix 6] In the steel frame of Appendix 1, L-angles are installed on two of the horizontal frames, and opening base plates are formed on the flanges of the two horizontal frames that are close to each other.

[0069] According to Appendix 6, L-angles are installed on two of the horizontal frames, and opening base plates are formed on each of the flanges of the two horizontal frames that are close to each other, so that the L-angles and opening base plates can form a base for an opening inside the steel frame.

[0070] [Appendix 7] A manufacturing method for manufacturing a steel frame according to any one of Supplementary Note 1 to Supplementary Note 6, comprising the steps of: placing the horizontal frame on a work surface; placing the vertical frame so that the fin portion abuts on the end of the horizontal frame; and joining the flange portion of the horizontal frame and the fin portion of the vertical frame.

[0071] According to Appendix 7, the method includes the steps of placing a horizontal frame on a work surface, placing a vertical frame so that the fin portion abuts the end of the horizontal frame, and joining the flange portion of the horizontal frame to the fin portion of the vertical frame. Therefore, when assembling the vertical frame and horizontal frame to form a steel frame, work can be done from one side of the steel frame, eliminating the need to flip the steel frame and facilitating the manufacturing process. [Industrial Applicability]

[0072] The steel frame according to the present invention is suitable for use as, for example, a steel inner wall frame for a building. [Explanation of symbols]

[0073] 1...steel frame, 2...vertical frame, 3a...periphery horizontal frame (horizontal frame), 3b...intermediate horizontal frame (horizontal frame), 5...reinforcing plate material, 6...opening, 7...base vertical frame, 8...L angle, 11...first spacer (spacer), 21...fin portion, 30...side plate portion, 31...connecting plate portion, 32...flange portion, 35...periphery plate, 36...opening base plate,

Claims

1. A pair of long vertical frames and a plurality of horizontal frames installed between the pair of vertical frames, The pair of vertical frames each have a fin portion formed along the longitudinal direction and protruding in a direction approaching each other, The horizontal frame is a groove-shaped main body portion having two side plate portions extending in a longitudinal direction and a connecting plate portion connecting one side edge of the side plate portions; a flange portion formed on the other side edge of each of the side plates in a direction parallel to the connecting plate portion, The end of the flange portion of the horizontal frame abuts and is joined to the fin portion of the vertical frame. Steel frame.

2. Further, a reinforcing plate member is provided between the side plate portions and joined to the flange portion, The thickness of the reinforcing plate is formed to be shorter than the width of the side plate portion, and the reinforcing plate is joined to the flange portion via a spacer, The reinforcing plate and the connecting plate are disposed flush with each other.

2. The steel frame of claim 1.

3. Further, a reinforcing plate member is provided between the side plate portions and joined to the flange portion, The thickness of the reinforcing plate is formed to be equal to the width of the side plate portion.

2. The steel frame of claim 1.

4. Two of the horizontal frames are installed at both ends of the pair of vertical frames in the longitudinal direction, respectively, to form a rectangular periphery of the horizontal frames together with the pair of vertical frames; The two outer peripheral horizontal frames are formed such that the flange portions on the outer peripheral sides of the respective frames extend in directions approaching each other from the other side edge of the side plate portion.

2. The steel frame of claim 1.

5. Two of the horizontal frames are installed at both ends of the pair of vertical frames in the longitudinal direction, respectively, to form a rectangular periphery of the horizontal frames together with the pair of vertical frames; The two outer peripheral horizontal frames each have an outer peripheral plate formed thereon, the outer peripheral plate extending from the outer peripheral side edge of the flange portion on the outer peripheral side in a direction opposite to the side plate portion.

2. The steel frame of claim 1.

6. L-angles are installed on two of the horizontal frames, An opening base plate is formed at each of the flange portions of the two horizontal frames that are close to each other.

2. The steel frame of claim 1.

7. A manufacturing method for manufacturing the steel frame according to any one of claims 1 to 6, placing the cross frame on a work surface; placing the vertical frame on the end of the horizontal frame so that the fin portion abuts the end of the horizontal frame; a step of joining the flange portion of the horizontal frame and the fin portion of the vertical frame; A method for manufacturing a steel frame having the above structure.

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