Structural member, method for manufacturing structural member, and method for manufacturing structure

Abstract

To provide a structural member which can be positioned with high accuracy and joined to another structural member while simplifying a process, a method for manufacturing the structural member, and a method for manufacturing a structure.SOLUTION: And a plurality of stud members 13 each having a shaft portion 31 and a head portion 33 having a diameter larger than that of the shaft portion 31, the head portions 33 being disposed on the same plate surface 25a side at a plurality of positions spaced apart from each other in a plate surface 25a of the first flange portion 25, the shaft portions 31 being provided so as to penetrate the first flange portion 25, wherein the structural member 11 has a plurality of positioning portions 35 for positioning the structural member 11 when being joined to another member, and the positioning portions 35 include end surface 33a portions of the head portions 33 of the plurality of stud members 13 provided on the first flange portion 25 on a side opposite to the shaft portions 31.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a structural member, a method for manufacturing a structural member, and a method for manufacturing a structure. [Background technology]

[0002] There has been a demand for improved occupant safety in vehicles, and for this purpose, the strength of vehicle bodies has been improved. On the other hand, against the backdrop of worsening issues such as global warming, efforts to improve the fuel efficiency of automobiles are accelerating. It is known that reducing the weight of vehicle bodies is an effective way to improve fuel efficiency.

[0003] Meanwhile, development is also progressing in vehicles (including electric vehicles, hybrid vehicles, etc.) that run on electricity, and devices such as self-propelled robots. Battery systems installed in such vehicles or devices generally contain a large number of batteries (cells, battery cells) housed in a battery tray made of structural members such as joined aluminum extrusions.

[0004] Patent Document 1 discloses a structure made of joined extruded materials, which includes a long side member and a connecting member that is disposed at the end of the side member and connects it to another member, a cross member. In this structure, the joining surface of the connecting member where it joins to the cross member is adjusted to improve dimensional accuracy, which allows the cross member to be joined in a correctly positioned state relative to the connecting member, improving the dimensional accuracy of the structure. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-138318 Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, the technology described in Patent Document 1 above can improve the dimensional accuracy of the structure, but it is necessary to prepare die-cast components whose dimensional accuracy has been adjusted to improve the dimensional accuracy, and depending on the joining conditions, the assembly process of the structure can become complicated.

[0007] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a structural member that can be joined to other structural members with high accuracy while simplifying the process, a method for manufacturing a structural member, and a method for manufacturing a structure. [Means for solving the problem]

[0008] The present invention comprises the following configurations. (1) A structural material having a flat plate portion; a plurality of stud members each having a shaft portion and a head portion having a diameter larger than that of the shaft portion, the head portions being disposed on the same plate surface side at a plurality of positions spaced apart from one another within the plate surface of the flat plate portion, and the shaft portions being provided so as to penetrate the flat plate portion; and the structural material has a plurality of positioning portions for positioning the structural material when joining it to another member, the positioning portion includes an end surface of the head of each of the plurality of stud members provided on the flat plate portion, the end surface being opposite to the shaft portion; Structural components. (2) A method for manufacturing a structural member according to (1), providing the structural material; The stud members are spaced apart from one another within the plane of the flat plate portion of the structural material, and end faces of the heads opposite to the shank portions are arranged on the same plane, The shanks of the plurality of stud members are driven into the flat plate portion from the same plate surface side to penetrate the flat plate portion. Manufacturing method of structural members. (3) A method for manufacturing a structure including the structural member according to (1), an end surface of the head of the stud member provided at the positioning portion opposite to the shaft portion is abutted against a reference surface corresponding to the positioning portion of the positioning jig and fixed; a joining member different from the structural member is abutted against the structural member and fixed to the positioning jig; The structural member and the joining member are joined together while being fixed to the positioning jig. Method for manufacturing the structure. [Effects of the Invention]

[0009] According to the present invention, the process can be simplified and highly accurate positioning and joining to other structural members can be achieved. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic perspective view of a structural member according to a first embodiment. [Figure 2] FIG. 2 is a cross-sectional view perpendicular to the longitudinal direction of the structural member according to the first embodiment. [Figure 3] FIG. 3 is a process explanatory view showing a process of fixing a stud member to the first flange portion. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5] FIG. 5 is a perspective view of the structure. [Figure 6] FIG. 6 is a process explanatory diagram showing a state in which structural members and joining members are assembled to a base plate when manufacturing a structure. [Figure 7] 7 is a view taken along the arrow VB in FIG. 6, and is a side view showing a state in which the structural members and the joining members are positioned on the base plate by the clamping jig. [Figure 8] FIG. 8 is a cross-sectional view perpendicular to the longitudinal direction of the structural member, showing the positioning points of the structural member relative to the base plate. [Figure 9] FIG. 9 is a schematic diagram of the structural members and joining members positioned on the base plate, as viewed from the bottom side. [Figure 10] FIG. 10 is a schematic perspective view of a structural member according to the second embodiment. [Figure 11]FIG. 11 is a cross-sectional view taken along the longitudinal direction of the first flange portion, showing an example of positioning of a structural member according to the second embodiment. [Figure 12] FIG. 12 is a process explanatory view showing a process of fixing the stud member to the first flange portion. [Figure 13] FIG. 13 is a process explanatory view illustrating another method for fixing the stud member to the first flange portion. [Figure 14] FIG. 14 is a cross-sectional view taken along the longitudinal direction of the first flange portion, showing another example of positioning of the structural member according to the second embodiment. [Figure 15] FIG. 15 is a cross-sectional view taken along the longitudinal direction of the first flange portion, showing another example of positioning of the structural member according to the second embodiment. [Figure 16] FIG. 16 is a schematic perspective view of a structural member according to the third embodiment. [Figure 17] FIG. 17 is a cross-sectional view along the longitudinal direction of a structural member according to the third embodiment, in a state where the structural member is placed on a base plate. [Figure 18] FIG. 18 is a schematic perspective view of a structural member according to the fourth embodiment. [Figure 19] FIG. 19 is a front view of a structural member according to the fourth embodiment, as viewed from the X direction. [Figure 20] FIG. 20 is a cross-sectional view perpendicular to the longitudinal direction of the structural member according to the fourth embodiment, showing the structural member placed on the base plate and pressed against the wall plate. [Figure 21] FIG. 21 is a perspective view of the structure. [Figure 22] FIG. 22 is a process explanatory diagram showing the state in which each structural member is assembled to a base plate when manufacturing a structure. [Figure 23] 23 is a view taken along the arrow V-C in FIG. 22, and is a cross-sectional view showing a state in which the structural member is positioned by the flat plate and the wall plate. [Figure 24] FIG. 24 is an explanatory view showing a process of fixing a stud member to the lower opposing wall. [Figure 25]FIG. 25 is a cross-sectional view perpendicular to the longitudinal direction at a position where a structural member is positioned, with stud members provided on the lower opposing wall and the other connecting wall. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. (First embodiment) Fig. 1 is a schematic perspective view of a structural member 100 according to the first embodiment. Fig. 2 is a cross-sectional view perpendicular to the longitudinal direction of the structural member 100 according to the first embodiment. The structural member 100 has a structural member 11 and a plurality of stud members 13. This structural member 100 can be joined with other joining members such as extruded materials or castings, and can be used in structures that constitute, for example, the frame of a vehicle or a battery tray mounted on a vehicle.

[0012] In the following description, the vertical direction in FIGS. 1 and 2 is the Z direction, the longitudinal direction of the structural member 100 is the Y direction, and the width direction perpendicular to the Y and Z directions is the X direction.

[0013] For example, an extruded material made of aluminum or an aluminum alloy is used as the structural material 11. Aluminum alloys of the 5000 series, 6000 series, 7000 series, etc., as defined by JIS or AA standards are preferred as the aluminum alloy used for the structural material 11, as they have excellent strength. Aluminum alloy structural members 100 that are manufactured by an appropriate combination of tempering treatments such as homogenization heat treatment, hot extrusion, solution treatment and quenching, and artificial aging treatment can be suitably used.

[0014] The structural material 11 has a long main body portion 15 and a first flange portion (flat plate portion, first flat plate portion) 25 provided on this main body portion 15, and the stud member 13 is fixed to the first flange portion 25.

[0015] The main body 15 has a plurality of opposing walls 21A, 21B, and 21C and a pair of connecting walls 23A and 23B. In this example, the main body 15 has three opposing walls 21A, 21B, and 21C, which are arranged facing each other with a gap in the vertical direction in a cross-sectional view perpendicular to the longitudinal direction. The connecting walls 23A and 23B are arranged on both sides of the main body 15 so as to intersect with the opposing walls 21A, 21B, and 21C. The opposing walls 21A, 21B, and 21C are connected by the connecting walls 23A and 23B.

[0016] The first flange portion 25 extends from both ends of the lower opposing wall 21B that constitutes the bottom of the main body portion 15 along the opposing wall 21B to the outside of the main body portion 15. In addition, the main body portion 15 has an upper flange portion 27 formed on the upper opposing wall 21A that constitutes the upper portion, the upper flange portion 27 extending from one end in a cross-sectional view to the outside of the main body portion 15 along the opposing wall 21A.

[0017] The stud members 13 attached to the flat first flange 25 have a shank 31 and a head 33. The head 33 is a generally circular disk with a larger diameter than the shank 31, and the shank 31 is a generally cylindrical shape that protrudes axially from the center of the head 33. The shank 31 of each stud member 13 penetrates the first flange 25. The stud members 13 are provided at multiple spaced positions within the lower plate surface 25a of the first flange 25, with the heads 33 located on the same plate surface 25a. In this example, a pair of stud members 13 is attached to the first flange 25 at each longitudinal end of the structural member 11. The end faces 33a of the heads 33 opposite the shank 31 are flat. The shanks 31 of each stud member 13 are slightly longer than the thickness of the first flange 25.

[0018] The structural material 11 has positioning portions 35 at the first flange portion 25 where the stud members 13 are provided. In other words, the positioning portions 35 provided on the structural material 11 include end faces 33a of the heads 33 of the multiple stud members 13 provided on the first flange portion 25, on the side opposite to the shaft portions 31.

[0019] Fig. 3 is an explanatory diagram showing the process of fixing the stud member 13 to the first flange portion 25. Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 2. To fix the stud member 13 to the first flange portion 25, the prepared structural material 11 is placed with one plate surface 25a of the first flange portion 25 facing upward, as shown in St1 in Fig. 3. Then, the stud member 13 is placed at the driving position of the stud member 13 on the plate surface 25a of the first flange portion 25, with the shank 31 facing the first flange portion 25.

[0020] Next, as shown in St2 in Fig. 3, the first flange portion 25 is placed on top of a base 43 equipped with a die 41 having a hole 41a, and a block-shaped punch 45 is pressed from above against the head 33 of the stud member 13 to apply pressure. Then, as shown in St3 in Fig. 3, the shank 31 of the stud member 13 is driven into the first flange portion 25. As a result, the stud member 13 is crimped and fixed to the first flange portion 25 with the head 33 in contact with the plate surface 25a of the first flange portion 25. A blank 47 created by driving the shank 31 of the stud member 13 is ejected through the hole 41a of the die 41 (see St2 in Fig. 3).

[0021] 2 and 4, when joining the structural member 100 to another joining member, the structural member 100 is placed on a base plate BP having a reference surface BS consisting of a flat surface for positioning. The structural member 100 is then brought into close contact with the reference surface BS of the base plate BP, with the end faces 33a of the heads 33 of the multiple stud members 13 provided on the first flange portion 25 as positioning portions 35, opposite the shanks 31. Specifically, the tips of the shanks 31 of the multiple stud members 13 are pressed along the axes of the shanks 31 toward the base plate BP, which is in contact with the heads 33 of the stud members 13.

[0022] Here, the structural members 11 that make up the structural component 100 may undergo initial deformation, such as slight bending or twisting, during the manufacturing process or storage. In the structural component 100 of this configuration, the end faces 33a of the heads 33 of the stud members 13 are located at both longitudinal ends of the structural member 11. Therefore, even if the structural member 11 has the initial deformation described above, by pressing the heads 33 of the multiple stud members 13 against the reference surface BS of the base plate BP, the stud members 13 can be fixed to the base plate BP without rattle while correcting the initial deformation of the structural member 11, thereby improving positioning accuracy. This allows for high-precision positioning when joining the structural member 100 to other joining members.

[0023] Next, a structure 1000 constructed using the structural member 100 described above and a method for manufacturing the structure 1000 will be described.

[0024] 5 is a perspective view of a structure 1000. The structure 1000 is a rectangular frame-shaped joined body made up of a pair of structural members 100 and a pair of square-tube-shaped joining members 110. The pair of structural members 100 are arranged parallel to each other with a gap between them. Joining members 110 are joined parallel to each other by welding or the like to both ends of the longitudinal direction of these structural members 100. The structural members 100 are arranged so that the sides on which the upper flange portions 27 are provided face each other, and the joining member 110 is joined to the structural member 100 with its end inserted between the upper flange portion 27 and the first flange portion 25 of the structural member 100.

[0025] Fig. 6 is a process explanatory diagram showing the state in which structural member 100 and joining members 110 are assembled to base plate BP when manufacturing structure 1000. Fig. 7 is a view seen from the arrow VB direction in Fig. 6, and is a side view showing the state in which structural member 100 and joining members 110 are positioned on base plate BP by clamping jig 51. Fig. 8 is a cross-sectional view perpendicular to the longitudinal direction of structural member 100, showing the positioning location of structural member 100 relative to base plate BP.

[0026] To manufacture this structure 1000, first, a pair of structural members 100 and a pair of connecting members 110 are prepared. Next, as shown in FIGS. 6 and 7, the structural members 100 and the connecting members 110 are positioned on a base plate BP. As shown in FIG. 8, the base plate BP is equipped with a clamping jig 51. The clamping jig 51 has a block portion 53 that is U-shaped in side view and has arms 53a and 53b arranged in parallel, and a clamping screw 55 provided on the upper arm 53a. The clamping screw 55 is threaded into a threaded hole formed in the arm 53a. The clamping screw 55 has a large-diameter pressing portion 55a at the end on the lower arm 53b side. To attach this clamping jig 51 to the positioning portion 35 of the structural member 100, the clamping jig 51 is placed on the positioning portion 35 so that the first flange portion 25 is located between the lower arm portion 53b of the block portion 53 of the clamping jig 51 and the pressing portion 55a of the clamping screw 55. Next, the clamping screw 55 of the clamping jig 51 is screwed in, so that the stud member 13 fixed to the first flange portion 25 is clamped between the lower arm portion 53b and the pressing portion 55a of the clamping screw 55. When the clamping jig 51 is attached to the positioning portion 35 in this way, the end face 33a of the head portion 33 of the stud member 13 is brought into close contact with the lower arm portion 53b of the clamping jig 51.

[0027] Thereafter, the structural member 100 with the clamping jig 51 attached is placed parallel to the base plate BP. Then, the end face 33a of the head 33 of the stud member 13 provided on the positioning portion 35 is positioned relative to the reference surface BS of the base plate BP via the arm portion 53b of the block portion 53 of the clamping jig 51.

[0028] Furthermore, the end of the joining member 110 is inserted between the upper flange portion 27 and the first flange portion 25 of the structural member 100, and the structural member 100 and joining member 110 are arranged in a rectangular frame shape on the base plate BP.

[0029] Figure 9 is a schematic diagram of the structural member 100 and connecting member 110 positioned on the base plate BP, viewed from the bottom. By arranging the stud members 13 as shown in Figure 9, the structural member 100 and connecting member 110 can be stably positioned on the reference plane BS of the base plate BP with fewer support points at the four corners where the stud members 13 are located. As a result, even if there is variation in the heights of the four points at the four corners, the structural member 100 and connecting member 110 can be supported in a stable state as a whole.

[0030] After the structural member 100 and the joining member 110 are placed on the base plate BP in this manner, the joining portions of the structural member 100 and the joining member 110 are joined together. Examples of joining processes include welding, adhesion, bonding, friction stir welding, mechanical joining using rivets, bolts and nuts, screws, FDS (flow drill screws), SPR (self-piercing rivets), etc., as well as appropriate combinations of these. This allows for the manufacture of a structure 1000 in which the structural member 100 and the joining member 110 are integrally configured. With this structure 1000, the structural member 100 can be positioned on the base plate BP while correcting any initial deformation, resulting in a high-quality configuration with high dimensional accuracy.

[0031] Next, another embodiment of the structural member described above will be described. In the following description, the same members and parts as those in the first embodiment will be given the same reference numerals, and the description thereof may be omitted.

[0032] (Second embodiment) Figure 10 is a schematic perspective view of a structural member 200 according to a second embodiment. In this structural member 200, the main body 15 of the structural material 11 has a pair of opposing walls 21A, 21B, which are connected by left and right connecting walls 23A, 23B. The structural member 11 does not have an upper flange 27 (see Figure 1) and is formed in a rectangular cylindrical shape. First flanges 25 extend from both side edges of the lower opposing wall 21B, which forms the bottom of the pair of opposing walls 21A, 21B, to the outside of the main body 15. In this structural member 200, the first flange 25 of the structural member 11 has positioning portions 35, at three locations spaced apart in the longitudinal direction, where stud members 13 are provided.

[0033] When joining this structural member 200 to another joining member, for example, it is placed on the base plate BP having a flat reference surface BS as described above. The structural member 200 is then positioned with respect to the reference surface BS of the base plate BP by abutting and fixing the end faces 33a opposite to the shanks 31 of the heads 33 of the multiple stud members 13 provided on the first flange portion 25 as positioning portions 35 so that they are in close contact with the reference surface BS of the base plate BP.

[0034] In the structural member 200 of this configuration, even if the structural material 11 has the above-mentioned initial deformation, by fixing the end faces 33a of the heads 33 of the multiple stud members 13 in contact with the reference surface BS of the base plate BP, the structural member 11 can be positioned relative to the base plate BP without rattle while correcting the initial deformation. This allows the structural member 200 to be positioned with high precision when joining with other joining members.

[0035] Here, an example of positioning the structural member 200 on the base plate BP will be described. FIG. 11 is a cross-sectional view along the longitudinal direction of the first flange portion 25, illustrating an example of positioning of a structural member 200 according to the second embodiment. In this positioning example, a base plate BP having a stud receiving portion 61 and a positioning pin 63 is used. The stud receiving portion 61 has a flat top surface, which serves as the reference plane BS. A fixing clamper 65 is provided above the stud receiving portion 61. The positioning pin 63 protrudes upward from the middle of the stud receiving portion 61. When using this base plate BP, a positioning hole 26 is formed between the positioning portions 35 in the first flange portion 25 of the structural member 200. In this positioning example, the positioning pin 63 is inserted into the positioning hole 26 in the first flange portion 25, and the stud member 13 on the positioning portion 35 is clamped and fixed between the stud receiving portion 61 and the fixing clamper 65. By positioning in this manner, even if the structural member 11 has an initial deformation such as bending, the structural member 200 can be accurately positioned in the horizontal plane while correcting the initial deformation.

[0036] Next, a method for fixing the stud member 13 when a bend occurs as an initial deformation in the flat plate portion 17 of the structural material 11 will be described. Figure 12 is an explanatory diagram showing the process of fixing the stud member 13 to the first flange portion 25.

[0037] To fix the stud member 13 to the first flange portion 25 of the structural material 11 that has been initially bent, a positioning hole 26 is formed in the first flange portion 25 of the prepared structural material 11, as shown in St1 of Figure 12.

[0038] Next, as shown in St2 of FIG. 12 , a driving tool 71 is used to drive the stud member 13 into the first flange portion 25 of the prepared structural member 11 at the driving position of the stud member 13 from the plate surface 25a side. The driving tool 71 is, for example, a handheld tool equipped with a die 73 having a recess 73a and a punch 75 having a hole 75a. To drive the stud member 13 using this driving tool 71, first, the head 33 of the stud member 13 is fitted and held in the recess 73a of the die 73, and the first flange portion 25 is positioned between the die 73 and the punch 75. Then, the die 73 and the punch 75 are pressed toward each other. This drives the shank 31 of the stud member 13 into the first flange portion 25, and the head 33 is crimped and fixed to the first flange portion 25 with the head 33 abutting against the plate surface 25a of the first flange portion 25. The blank 47 produced by driving the shaft portion 31 of the stud member 13 is housed in the hole 75 a of the punch 75 .

[0039] Then, as shown in St3 of Figure 12, the stud members 13 are driven into other driving positions of the stud members 13 on the flat plate portion 17 using a driving tool 71, and the stud members 13 are fixed at each driving position of the first flange portion 25 as shown in St4 of Figure 12.

[0040] According to this fixing method, the stud member 13 can be easily crimped and fixed to the first flange portion 25 that has undergone initial deformation such as bending.

[0041] Next, another fixing method will be described. FIG. 13 is a process diagram illustrating another method for fixing the stud member 13 to the first flange portion 25. In this fixing method, a structural material 11 is prepared as shown in St1 of FIG. 13, and the first flange portion 25 of the structural material 11 is set in a driving die 81 as shown in St2 of FIG. 13. The driving die 81 has a lower die 83 and an upper die 85. The lower die 83 has a plurality of die recesses 83a and protrusions 83b provided between the die recesses 83a. The upper die 85 has a plurality of punch holes 85a and holes 85b provided between the punch holes 85a. The punch holes 85a and holes 85b of the upper die 85 are provided at positions corresponding to the die recesses 83a and protrusions 83b of the lower die 83, respectively.

[0042] To drive the stud member 13 using this driving die 81, first, the head 33 of the stud member 13 is fitted into and held in each die recess 83a of the lower die 83, and the first flange portion 25 is positioned between the lower die 83 and the upper die 85. Then, as shown in St3 of FIG. 13 , the lower die 83 and the upper die 85 are pressed toward each other. This drives the shaft 31 of the stud member 13 into the first flange portion 25, and the protrusion 83b of the lower die 83 into the first flange portion 25. As a result, as shown in St4 of FIG. 13 , the stud member 13 is crimped and fixed to the first flange portion 25, and further, a positioning hole 26 is formed in the first flange portion 25 between the stud members 13. Furthermore, by being pressed by the lower die 83 and the upper die 85, any initial deformation (bending) of the first flange portion 25 is corrected and flattened. The blank 47 created by driving the shaft 31 of the stud member 13 is accommodated in the punch hole 85a of the upper die 85, and the blank 48 created by driving the protrusion 83b into the first flange portion 25 is accommodated in the hole 85b of the upper die 85 (see St3 in Figure 13).

[0043] According to this fixing method, the plurality of stud members 13 can be simultaneously crimped and fixed to the first flange portion 25 while correcting initial deformation such as bending, and the positioning holes 26 can also be formed at the same time.

[0044] In the above structural member 200, the positioning was performed in the horizontal plane by inserting the positioning pin 63 into the positioning hole 26 formed in the first flange portion 25, but positioning may also be performed using a positioning method without using the positioning hole 26.

[0045] Next, we will explain another positioning example for positioning the structural member 200 without using the positioning holes 26. Figures 14 and 15 are cross-sectional views along the longitudinal direction of the first flange portion 25, showing another positioning example of the structural member 200 according to the second embodiment.

[0046] 14, in this positioning example, the base plate BP does not have a positioning pin 63, but has a positioning recess 61a on the top surface of the stud receiving portion 61 of the base plate BP. The bottom surface of the positioning recess 61a of this stud receiving portion 61 is smooth, and this smooth bottom surface of the positioning recess 61a serves as the reference plane BS. In this positioning example using the base plate BP, the head 33 of the stud member 13 of the positioning portion 35 is fitted into the positioning recess 61a of the stud receiving portion 61, and then the positioning portion 35 of the first flange portion 25 is clamped and fixed between the stud receiving portion 61 and a fixing clamper 65. In this positioning example, by holding the head 33 of the stud member 13 in the positioning recess 61a, the structural member 200 can be positioned accurately even in a horizontal plane without using a positioning pin 63.

[0047] 15, the base plate BP does not have a positioning pin 63 (see FIG. 11), but has a positioning recess 61a on the top surface of the stud receiving portion 61. Furthermore, in this positioning example using the base plate BP, a magnet 61b is provided at the bottom of the positioning recess 61a of the stud receiving portion 61. In this positioning example, when the head 33 of the stud member 13 of the positioning portion 35 is fitted into the positioning recess 61a of the stud receiving portion 61, the magnet 61b of the stud receiving portion 61 attracts and fixes the head 33 of the stud member 13. In this positioning example, the structural member 200 can be positioned with high precision even in a horizontal plane, without using a positioning pin 63 or a fixing clamper 65.

[0048] (Third embodiment) Fig. 16 is a schematic perspective view of a structural member 300 according to the third embodiment. Fig. 17 is a cross-sectional view along the longitudinal direction of the structural member 300 according to the third embodiment placed on a base plate BP.

[0049] 16 and 17, the structural member 300 is provided with an opening 91 and a first positioning portion 93 at both ends in the longitudinal direction (Y direction) of the main body 15 of the structural member 11. Each first positioning portion 93 is made up of a stud member 13 hammered into a flat plate portion made up of the opposing wall 21B below the main body 15 from below.

[0050] The structural member 300 of this configuration is placed on the base plate BP, and is positioned by the end faces 33a of the heads 33 of the stud members 13 provided on the multiple first positioning portions 93 abutting against the reference surface BS of the base plate BP. This allows the structural member 300 to be placed on the base plate BP without any rattle, enabling highly accurate positioning and stable fixation.

[0051] In this structural member 300, both ends of the main body 15 are cut diagonally, and openings 91 are provided that expose to the outside the driving positions of the stud members 13, which serve as first positioning portions 93. Specifically, the pair of connecting walls 23A, 23B and the upper opposing wall 21A are cut at an angle from both longitudinal (Y direction) ends of the lower opposing wall 21B of the main body 15 toward the longitudinal center so that the longitudinal length of the main body 15 decreases upward in the Z direction. In other words, the openings 91 are formed by cutouts that include a portion of the upper opposing wall 21A of the main body 15 that faces the first positioning portion 93. As a result, the first positioning portion 93 of the lower opposing wall 21B is exposed to the outside when the main body 15 is viewed from above.

[0052] 17, the position in the first positioning portion 93 where the stud member 13 is to be driven can be easily accessed with a punch or the like, allowing the stud member 13 to be easily crimped and fixed. Generally, the shape of the opening 91 cut at an angle as described above is often used when forming the corners of, for example, a rectangular frame. By using such a shape for forming a corner, the processing of an opening hole can be omitted, reducing the number of steps required to manufacture a structure using the structural member 300.

[0053] (Fourth embodiment) Fig. 18 is a schematic perspective view of a structural member 400 according to the fourth embodiment. Fig. 19 is a front view of the structural member 400 according to the fourth embodiment as viewed from the X direction.

[0054] As shown in Figures 18 and 19, the structural member 400 of this configuration has an opening 91 and a first positioning portion 93 at both ends of the main body portion 15 in the longitudinal direction (Y direction), similar to the structural member 300 of the third embodiment shown in Figure 16.

[0055] The structural member 400 further includes second flange portions (flat plate portions, second flat plate portions) 95A, 95B that protrude upward and downward in the Z direction from one side of the main body portion 15 in the X direction. That is, the pair of second flange portions 95A, 95B are formed by extending from both ends of one connecting wall 23A, which is connected to the pair of opposing walls 21A, 21B, toward the outside of the main body portion 15 along the connecting wall 23A in a cross-sectional view perpendicular to the longitudinal direction of the main body portion 15. These second flange portions 95A, 95B are molded integrally with the main body portion 15. The second flange portions 95A, 95B are also provided with a plurality of second positioning portions 97 into which the stud members 13 are driven. In each second positioning portion 97, the end surface 33a of the head portion 33 of the stud member 13 is disposed on the opposite side from the opposing walls 21A, 21B.

[0056] 20 is a cross-sectional view perpendicular to the longitudinal direction of the structural member 400, showing a state in which a structural member 400 according to the fourth embodiment is placed on a base plate BP and pressed against a wall plate WP. The structural member 400 is placed on a first reference plane BS1, which is the upper surface of the base plate BP, so that the end faces 33a of the heads 33 of the stud members 13 of the multiple first positioning portions 93 abut against the base plate BP. This allows the structural member 400 to be placed on the base plate BP without rattle, even if the structural member 11 has initial deformation such as bending or twisting.

[0057] Furthermore, in the structural member 400, the end faces 33a of the heads 33 of the stud members 13 of the multiple second positioning portions 97 provided on the second flange portions 95A, 95B abut against the second reference surface BS2 formed by the side surface of the lateral wall plate WP, thereby enabling the main body portion 15 to be accurately positioned relative to the wall plate WP without any rattle.

[0058] Therefore, with the structural member 400, the first positioning portion 93 is clamped to the base plate BP while the second positioning portion 97 is pressed against the wall plate WP, or the first positioning portion 93 is clamped to the base plate BP and the second positioning portion 97 is clamped to the wall plate WP, thereby making it possible to fix the structural member 400 in a state where it is positioned with high precision in the Z direction and the X direction. As a result, when a structure is made by joining the structural member 400 with another structural member, the structure can be made into a high-quality product with high shape precision.

[0059] To manufacture this structural member 400, the stud members 13 that will become the first positioning portions 93 are driven through the openings 91, as in the case of the structural member 300 shown in Fig. 16. Stud members 13 that will become the second positioning portions 97 are also driven into the second flange portions 95A and 95B. The stud members 13 that will become the second positioning portions 97 can be driven in using the same device that was used to drive the stud members 13 that will become the first positioning portions 93, by rotating the main body 15 by 90°.

[0060] Although the head 33 of the stud member 13 of the second positioning portion 97 of the structural member 400 is disposed on the side opposite the opposing walls 21A, 21B, the head 33 may be disposed on the opposing wall 21A, 21B side. In that case, a wall plate WP having a second reference surface BS2 is disposed on the opposing wall 21A, 21B side of each of the second flange portions 95A, 95B.

[0061] Next, a structure 2000 constructed using the structural member 200 of the second embodiment and the structural member 400 of the fourth embodiment, and a method for manufacturing the structure 2000 will be described.

[0062] FIG. 21 is a perspective view of a structure 2000. The structure 2000 is a joined body consisting of a pair of structural members 200 of the second embodiment shown in FIG. 10 and a pair of structural members 400 of the fourth embodiment shown in FIG. 18. In the structure 2000, the pair of structural members 200 are arranged parallel to each other with a gap between them. Structural members 400 are joined parallel to each other to both longitudinal ends of these structural members 200 by welding or the like. A plurality of stud members 13 of first positioning portions 35, 93 are provided on the first flange portion 25 of the structural member 200 and the lower opposing wall 21B that forms the bottom surface of the structural member 400. In addition, a plurality of stud members 13 of second positioning portions 97 are provided on the second flange portions 95A, 95B of the structural member 400.

[0063] Next, the manufacturing process for this structure 2000 will be described. Figure 22 is a process explanatory diagram showing the state in which the structural members 200, 400 are assembled to the base plate BP when manufacturing the structure 2000. The base plate BP used when manufacturing the structure 2000 includes a flat plate FP and a wall plate WP. First, a pair of structural members 200 and a pair of structural members 400 are prepared. The flat plates FP are each positioned on the base plate BP according to the positions of the first positioning portions 35, 93 provided on the structural members 200, 400. The wall plate WP is also positioned so that it faces the second positioning portion 97 of the structural member 400.

[0064] Next, the structural member 200, 500 is placed on the flat plate FP. Figure 23 is a cross-sectional view taken along the arrow V-C in Figure 22, showing the structural member 200, 400 positioned by the flat plate FP and the wall plate WP. The end faces 33a of the heads 33 of the stud members 13 attached to the first positioning portions 35, 93 of the structural member 200, 400 abut against a first reference plane BS1 formed by the upper surface of the flat plate FP. The end faces 33a of the heads 33 of the stud members 13 attached to the second positioning portions 97 of the structural member 400 abut against a second reference plane BS2 formed by the side surface of the wall plate WP.

[0065] Then, with the end faces 33a of the heads 33 of each stud member 13 of the first positioning portions 35, 93 and the second positioning portion 97 of the structural members 200, 400 abutting against the flat plate FP and the wall plate WP, each stud member 13 is clamped by a fixing device not shown.

[0066] The clamped structural members 200, 400 are positioned and fixed with the end faces 33a of the heads 33 of each stud member 13 of the first positioning portions 35, 93 and second positioning portions 97 abutting the first reference surface BS1 of the flat plate FP and the second reference surface BS2 of the wall plate WP. After the structural members 200, 400 are positioned and clamped to the flat plate FP and the wall plate WP in this manner, the joint portions of the structural members 200 and 400 are joined. This makes it possible to manufacture a structure 2000 in which the structural members 200, 400 are integrally configured. With this structure 2000, initial deformation of the structural materials 11 of the structural members 200, 400 can be corrected by elastic deformation while being positioned, resulting in a high-quality configuration with high dimensional accuracy.

[0067] The structure 2000 described above is an example in which the structural members of the respective embodiments are combined, but it may also be configured such that another joining member is joined to at least one of the structural members of the above-described embodiments.

[0068] In the structural member 300 of the third embodiment and the structural member 400 of the fourth embodiment, openings 91 consisting of notches cut diagonally at both longitudinal ends of the main body 15 are formed to allow easy access for a punch or the like to the driving position of the stud member 13, but the openings are not limited to those consisting of notches.

[0069] Here, we will explain a structural member 500 having an opening other than the opening 91 formed by a notch. FIG. 24 is an explanatory diagram showing a process for fixing a stud member 13 to the lower opposing wall 21B. As shown in St1 of FIG. 24 , in this structural member 500, when the stud member 13 is driven into the lower opposing wall 21B of the main body 15, an opening 92 formed by a drilled hole is formed in the upper opposing wall 21A at a location opposite the driving position of the stud member 13. By forming such an opening 92, as shown in St2 of FIG. 24 , it is possible to easily insert a punch 101 through the opening 92 and drive the stud member 13 into the lower opposing wall 21B together with a die 103 holding the stud member 13 in a recess 103a, as shown in St2 of FIG. 24 . Similarly, if an opening 92 formed by a drilled hole is formed in one connecting wall 23A of the main body 15, it is possible to easily insert a punch 101 through the opening 92 and drive the stud member 13 into the other connecting wall 23B.

[0070] FIG. 25 is a cross-sectional view perpendicular to the longitudinal direction at a positioning location of a structural member 500 in which stud members 13 are provided on the lower opposing wall 21B and the other connecting wall 23B. As shown in FIG. 25, in the structural member 500, openings 92 are formed in the upper opposing wall 21A and one connecting wall 23A of the main body 15. A punch 101 is inserted into these openings 92 to drive stud members 13 into the lower opposing wall 21B and the other connecting wall 23B, enabling positioning in two different directions (e.g., the X and Z directions, which are perpendicular to each other). Specifically, the end face 33a of the head 33 of the stud member 13 provided on the lower opposing wall 21B is clamped by abutting it against the first reference surface BS1 of the base plate BP, and the end face 33a of the head 33 of the stud member 13 provided on the other connecting wall 23B is clamped by abutting it against the second reference surface BS2 of the wall plate WP. This allows the main body 15 to be positioned with high precision in the X and Z directions, which are perpendicular to each other.

[0071] As such, the present invention is not limited to the above-described embodiments, and the present invention also contemplates the mutual combination of the various components of the embodiments, as well as modifications and applications by those skilled in the art based on the description in the specification and well-known techniques, and these modifications and applications are included in the scope of protection sought.

[0072] As described above, the present specification discloses the following: (1) A structural material having a flat plate portion; a plurality of stud members each having a shaft portion and a head portion having a diameter larger than that of the shaft portion, the head portions being disposed on the same plate surface side at a plurality of positions spaced apart from one another within the plate surface of the flat plate portion, and the shaft portions being provided so as to penetrate the flat plate portion; and the structural material has a plurality of positioning portions for positioning the structural material when joining it to another member, A structural member, wherein the positioning portion includes an end surface of the head of each of the plurality of stud members provided on the flat plate portion, the end surface being opposite to the shaft portion. This structural member can be positioned relative to a flat surface by abutting the end faces of the heads of multiple stud members, which are provided on the flat plate as positioning members, opposite the shanks, against the flat surface. The structural materials that make up the structural member may experience initial deformation, such as slight bending or twisting, during the manufacturing process or storage. Even if the structural material has initial deformation, abutting the end faces of the heads of the multiple stud members against the flat surface corrects the initial deformation and positions the structural material without rattle against the flat surface. This allows the structural member to be positioned with high precision when joining it to other joining members.

[0073] (2) The flat plate portion has a first flat plate portion and a second flat plate portion intersecting the first flat plate portion, A plurality of the stud members are provided on each of the first flat plate portion and the second flat plate portion, The positioning unit is a first positioning portion provided on the first flat plate portion and including an end face of the head of the stud member opposite to the shaft portion; The structural member according to (1), further comprising: a second positioning portion provided on the second flat plate portion and including an end face of the head of the stud member opposite to the shaft portion. With this structural member, the structural member can be positioned against a flat surface without rattle by abutting the end faces of the heads of the multiple stud members provided on the first flat plate as first positioning portions, opposite the shanks, against the flat surface. Furthermore, the structural member can be positioned against another flat surface without rattle by abutting the end faces of the heads of the multiple stud members provided on the second flat plate as second positioning portions, opposite the shanks, against the other flat surface. This allows the structural member to be positioned with high precision in two directions when joining the structural member to another member.

[0074] (3) The structural material has a long body portion in which a pair of opposing walls arranged opposite to each other with a gap therebetween in a cross section perpendicular to the longitudinal direction are connected by a connecting wall that intersects the pair of opposing walls, The main body portion is A plurality of openings are formed in one of the pair of opposing walls, the stud member is provided at a position facing the plurality of openings in the other of the pair of opposing walls, with the head protruding outward from the main body and the shaft penetrating the other opposing wall, The structural member according to (1) or (2), wherein the positioning portion has a first positioning portion including an end face opposite to the shaft portion of the head of each of the plurality of stud members provided on the other opposing wall. With this structural member, the end faces of the heads of the stud members provided as first positioning parts on the other of the pair of opposing walls, opposite the shanks, are brought into contact with the flat surface, thereby enabling the structural member to be positioned on the flat surface without rattle, thereby enabling the structural member to be positioned with high precision when joining to another member.

[0075] (4) The connecting wall is provided with a plurality of the stud members, the heads of which protrude outward from the main body and the shafts of which penetrate the connecting wall, The structural member according to (3), wherein the positioning portion has a second positioning portion including an end face of the head of each of the plurality of stud members provided on the connecting wall opposite to the shaft portion. With this structural member, the end faces of the heads of the stud members provided on the connecting wall as second positioning parts, opposite the shafts, can be abutted against another flat surface, allowing the structural member to be positioned against the other flat surface without rattle. This allows the structural member to be positioned with high precision in two directions when joining to another member.

[0076] (5) A structural member according to (3) or (4), wherein the opening is a notch formed by cutting out an area including a portion of the one of the opposing walls of the main body that faces the stud member. With this structural member, the mounting position of the stud member on the other opposing wall is exposed to the outside of the main body, making it easy to access the driving position of the stud member on the other opposing wall without the stud member interfering with one of the opposing walls.

[0077] (6) The structural member according to any one of (3) to (5), wherein the opening is a drilled hole that penetrates the connecting wall in the thickness direction. This structural member allows the opening to be easily provided at any desired position.

[0078] (7) The structural material has a long body portion in which a pair of opposing walls arranged opposite to each other with a gap therebetween in a cross section perpendicular to the longitudinal direction are connected by a connecting wall that intersects the pair of opposing walls, The main body portion is A pair of first flange portions, which are flat plate portions extending from both ends in the cross-sectional view to the outside of the main body portion along the other opposing wall, are formed on the other opposing wall of the pair of opposing walls, The stud members are provided on the pair of first flange portions so as to penetrate the first flange portions, The structural member according to (1), wherein the positioning portion includes an end surface of the head portion of each of the plurality of stud members provided on the first flange portion, opposite to the shaft portion. With this structural member, the positioning portion is provided on the first flange portion that extends outward from the main body portion, so the stud members that serve as the positioning portion can be easily provided on the first flange portion without interfering with the main body portion. Furthermore, even if the structural member has initial deformation such as bending or twisting, the structural member can be positioned with high precision and stably fixed to another member by abutting the end faces of the multiple stud members of the positioning portion on a flat surface.

[0079] (8) The structural material has a long body portion in which a pair of opposing walls arranged opposite to each other with a gap therebetween in a cross section perpendicular to the longitudinal direction are connected by a connecting wall that intersects the pair of opposing walls, a pair of second flange portions, which are flat plate portions, are formed so as to extend from both ends of the connecting wall connected to the pair of opposing walls in the cross-sectional view to the outside of the main body portion along the connecting wall; The stud members are provided on the pair of second flange portions so as to penetrate the second flange portions, the first positioning portion includes end surfaces of the heads of the plurality of stud members provided on the other of the pair of opposing walls, the end surfaces being opposite to the shank portions; The structural member according to (2), wherein the second positioning portion includes an end surface of the head portion of each of the plurality of stud members provided on the second flange portion, the end surface being opposite to the shaft portion. With this structural member, the end face of the head of the stud member of the first positioning portion abuts against a flat surface, allowing the structural member to be positioned against the flat surface without rattle. Furthermore, the end face of the head of the stud member of the second positioning portion abuts against another flat surface, allowing the structural member to be positioned against the other flat surface without rattle. This allows the structural member to be positioned with high precision in two directions when joining the structural member to another member. Furthermore, because the second positioning portion is provided on the second flange portion extending outward from the main body portion, the stud member that serves as the second positioning portion can be easily provided on the second flange portion without interfering with the main body portion.

[0080] (9) A method for manufacturing a structural member according to any one of (1) to (8), providing the structural material; The stud members are spaced apart from one another within the plane of the flat plate portion of the structural material, and end faces of the heads opposite to the shank portions are arranged on the same plane, The shanks of the plurality of stud members are driven into the flat plate portion from the same plate surface side to penetrate the flat plate portion. Manufacturing method of structural members. This method of manufacturing a structural member makes it possible to easily manufacture a structural member having a flat plate portion to which multiple stud members are attached.The structural member thus manufactured can be positioned against a flat surface without rattle by abutting the end faces of the heads of the multiple stud members opposite the shanks against the flat surface.

[0081] (10) The method for manufacturing a structural member according to (9), wherein the structural material is positioned and fixed in the plate surface direction of the flat plate portion, and then a plurality of the stud members are driven into the flat plate portion. According to this method of manufacturing a structural member, by positioning and fixing the flat plate portion in the plate surface direction and driving the stud members into the flat plate portion, a structural member having a plurality of stud members attached to the flat plate portion can be manufactured with high precision.

[0082] (11) Positioning and fixing a plurality of stud receiving portions each having a recess on its top surface at positions corresponding to the intended positions for driving the plurality of stud members on the flat surface; the heads of the stud members are disposed in the recesses of the stud receiving portion, respectively; The method for manufacturing a structural member according to (9) or (10), wherein the shank of the stud member, with the head disposed in the recess, is driven into the flat plate portion of the structural material. According to this method of manufacturing a structural member, the heads of the stud members can be positioned and held in the recesses of the multiple stud receiving portions, making it possible to easily drive the stud members into the flat plate portion of the structural member.

[0083] (12) A method for manufacturing a structural member according to any one of (9) to (11), wherein a plurality of the stud members are simultaneously driven into the flat plate portion of the structural member. According to this method for manufacturing a structural member, productivity can be improved by simultaneously driving a plurality of stud members into the flat plate portion of the structural member.

[0084] (13) A method for manufacturing a structure including the structural member according to (1), comprising: an end surface of the head of the stud member provided at the positioning portion opposite to the shaft portion is abutted against a reference surface corresponding to the positioning portion of the positioning jig and fixed; a joining member different from the structural member is abutted against the structural member and fixed to the positioning jig; The structural member and the joining member are joined together while being fixed to the positioning jig. Method for manufacturing the structure. According to this manufacturing method for a structure, the structural members and the joining members are joined together while fixed to a positioning jig, thereby making it possible to achieve a high-quality structure with high dimensional accuracy.

[0085] (14) A method for manufacturing a structure including the structural member according to (2), abutting the heads of the plurality of stud members in the first positioning portion of the structural member against a first reference surface corresponding to the first positioning portion of the positioning jig, and abutting the heads of the plurality of stud members in the second positioning portion of the structural member against a second reference surface corresponding to the second positioning portion of the positioning jig, and fixing them; a joining member different from the structural member is abutted against the structural member and fixed to the positioning jig; The structural member and the joining member are joined together while being fixed to the positioning jig. Method for manufacturing the structure. According to this manufacturing method for a structure, a structural member fixed to a positioning jig in two directions and a joining member fixed to the positioning jig are joined together, thereby making it possible to achieve a high-quality structure with high dimensional accuracy.

[0086] (15) The structural member is fixed to the positioning jig by The method for manufacturing a structure according to (13) or (14), further comprising the step of pressing the tips of the shanks of the plurality of stud members along the axes of the shanks toward the positioning jig that is in contact with the heads of the stud members, while the structural material of the structural member is positioned and fixed in a plate surface direction of the flat plate portion. According to this method of manufacturing a structure, by pressing the head of the stud member against the positioning jig, the stud member can be fixed to the positioning jig without rattle, thereby improving positioning accuracy.

[0087] (16) The structural member is fixed to the positioning jig by The method for manufacturing a structure according to (13) or (14), further comprising the step of placing the heads of the stud members in the recesses of stud receiving parts, each of which has a recess on its top surface and is provided at a corresponding position of the stud members in the positioning jig. According to this manufacturing method for a structure, by locating the head of the stud member in the recess of the stud receiving portion, the stud member can be fixed to the positioning jig with high precision, thereby improving positioning precision and achieving a high-quality structure.

[0088] (17) The structural member is fixed to the positioning jig by The method for manufacturing a structure according to (13) or (14), further comprising the step of attracting and fixing the heads of the plurality of stud members by magnets provided in the positioning jig at corresponding positions on the plurality of stud members. According to this method for manufacturing a structure, the head of the stud member is attracted to the positioning jig, so that the stud member can be easily fixed to the positioning jig, improving the efficiency of the positioning work. [Explanation of symbols]

[0089] 11 Structural materials 13 Stud member 15 Main body 21A Opposite wall 21B Opposing wall (flat plate part, 1st flat plate part) 23A,23B Connecting wall 25 First flange portion (flat portion, first flat portion) 25a plate surface 31 Shaft 33 Head 33a End face 35,93 Positioning part (first positioning part) 61 Stud receiving part 61a Recess 61b Magnet 91,92 Opening 95A, 95B Second flange section (flat section, second flat section) 97 Second positioning part 100,200,300,400 Structural members 1000,2000 structures FP Flat Plate (Positioning Jig) BP base plate (positioning jig) BS reference plane BS1 1st reference plane BS2 2nd reference plane WP Wall Plate (Positioning Jig)

Claims

1. a structural material having a flat plate portion; a plurality of stud members each having a shaft portion and a head portion having a diameter larger than that of the shaft portion, the head portions being disposed on the same plate surface side at a plurality of positions spaced apart from one another within the plate surface of the flat plate portion, and the shaft portions being provided so as to penetrate the flat plate portion; and the structural material has a plurality of positioning portions for positioning the structural material when joining it to another member, the positioning portion includes an end surface of the head of each of the plurality of stud members provided on the flat plate portion, the end surface being opposite to the shaft portion; Structural components.

2. the flat plate portion has a first flat plate portion and a second flat plate portion intersecting the first flat plate portion, A plurality of the stud members are provided on each of the first flat plate portion and the second flat plate portion, The positioning unit is a first positioning portion provided on the first flat plate portion and including an end face of the head of the stud member opposite to the shaft portion; a second positioning portion provided on the second flat plate portion and including an end face of the head of the stud member opposite to the shaft portion, The structural member of claim 1 .

3. The structural material has an elongated main body portion in which a pair of opposing walls arranged opposite to each other with a gap therebetween in a cross-sectional view perpendicular to the longitudinal direction are connected by a connecting wall that intersects the pair of opposing walls, The main body portion is A plurality of openings are formed in one of the pair of opposing walls, the stud member is provided at a position facing the plurality of openings in the other of the pair of opposing walls, with the head protruding outward from the main body and the shaft penetrating the other opposing wall, the positioning portion has a first positioning portion including an end surface of the head portion of each of the plurality of stud members provided on the other opposing wall, the end surface being opposite to the shaft portion; The structural member of claim 1 .

4. The connecting wall is provided with a plurality of the stud members, the heads of which protrude outward from the main body portion, and the shafts of which penetrate the connecting wall, the positioning portion has a second positioning portion including an end surface of the head portion of each of the plurality of stud members provided on the connecting wall, the end surface being opposite to the shaft portion; The structural member of claim 3 .

5. the opening is a notch formed by cutting out a region including a portion of the one opposing wall of the main body that faces the stud member; The structural member of claim 3 .

6. The opening is a drilled hole penetrating the connecting wall in the thickness direction. The structural member of claim 3 .

7. The structural material has an elongated main body portion in which a pair of opposing walls arranged opposite to each other with a gap therebetween in a cross-sectional view perpendicular to the longitudinal direction are connected by a connecting wall that intersects the pair of opposing walls, The main body portion is A pair of first flange portions, which are flat plate portions extending from both ends in the cross-sectional view to the outside of the main body portion along the other opposing wall, are formed on the other opposing wall of the pair of opposing walls, The stud members are provided on the pair of first flange portions so as to penetrate the first flange portions, the positioning portion includes an end surface of the head portion of each of the plurality of stud members provided on the first flange portion, the end surface being opposite to the shaft portion; The structural member of claim 1 .

8. The structural material has an elongated main body portion in which a pair of opposing walls arranged opposite to each other with a gap therebetween in a cross-sectional view perpendicular to the longitudinal direction are connected by a connecting wall that intersects the pair of opposing walls, a pair of second flange portions, which are flat plate portions, are formed so as to extend from both ends of the connecting wall connected to the pair of opposing walls in the cross-sectional view to an outside of the main body portion along the connecting wall; The stud members are provided on the pair of second flange portions so as to penetrate the second flange portions, the first positioning portion includes an end surface of the head portion of each of the plurality of stud members provided on the other of the pair of opposing walls, the end surface being opposite to the shaft portion; the second positioning portion includes an end surface of the head portion of each of the plurality of stud members provided on the second flange portion, the end surface being opposite to the shank portion; The structural member of claim 2 .

9. A method for manufacturing a structural member according to claim 1, providing the structural material; The stud members are spaced apart from one another within the plane of the flat plate portion of the structural material, and end faces of the heads opposite to the shank portions are arranged on the same plane, The shanks of the plurality of stud members are driven into the flat plate portion from the same plate surface side to penetrate the flat plate portion. Manufacturing method of structural members.

10. a plurality of stud members are driven into the flat plate portion while the structural material is positioned and fixed in a plate surface direction of the flat plate portion; The method for manufacturing a structural member according to claim 9.

11. a plurality of stud receiving portions each having a recess on its top surface are positioned and fixed at positions on the flat surface corresponding to the intended positions for driving the plurality of stud members; the heads of the stud members are disposed in the recesses of the stud receiving portion, respectively; the shaft portion of the stud member, the head of which is disposed in the recess, is driven into the flat plate portion of the structural material; The method for manufacturing a structural member according to claim 9.

12. The plurality of stud members are simultaneously driven into the flat plate portion of the structural material. A method for manufacturing a structural member according to any one of claims 9 to 11.

13. A method for manufacturing a structure including the structural member according to claim 1, comprising: an end surface of the head of the stud member provided at the positioning portion opposite to the shaft portion is abutted against a reference surface corresponding to the positioning portion of the positioning jig and fixed; a joining member different from the structural member is abutted against the structural member and fixed to the positioning jig; The structural member and the joining member are joined together while being fixed to the positioning jig. Method for manufacturing the structure.

14. A method for manufacturing a structure including the structural member according to claim 2, comprising: abutting the heads of the stud members in the first positioning portion of the structural member against a first reference surface corresponding to the first positioning portion of the positioning jig, and abutting the heads of the stud members in the second positioning portion of the structural member against a second reference surface corresponding to the second positioning portion of the positioning jig, and fixing them; a joining member different from the structural member is abutted against the structural member and fixed to the positioning jig; The structural member and the joining member are joined together while being fixed to the positioning jig. Method for manufacturing the structure.

15. The structural member is fixed to the positioning jig by and pressing, with the structural material of the structural member positioned and fixed in a plate surface direction of the flat plate portion, the tips of the shanks of the plurality of stud members along the axes of the shanks toward the positioning jig that is in contact with the heads of the stud members. A method for producing the structure according to claim 13 or 14.

16. The structural member is fixed to the positioning jig by the step of placing the heads of the stud members in the recesses of stud receiving parts, each of which has a recess on a top surface, and which is provided at a corresponding position of the stud members in the positioning jig, A method for producing the structure according to claim 13 or 14.

17. The structural member is fixed to the positioning jig by and a step of attracting and fixing the heads of the plurality of stud members by magnets provided in the positioning jig at corresponding positions of the plurality of stud members, A method for producing the structure according to claim 13 or 14.

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