JP7092287B2 - Joint member and shaft member joint structure - Google Patents

Description

The present invention relates to a joint member and a shaft member joint structure.

In Patent Document 1 below, a plurality of steel cylinders having one end joined to one joint and a closed cross section of a connecting portion to which the plurality of steel cylinders are joined are partitioned and the steel cylinder is formed. A structure comprising a steel partition plate to be joined to is disclosed.

Japanese Unexamined Patent Publication No. 2016-21164

In Patent Document 1, since a plurality of steel cylinders are joined to each other via a steel partition plate, it is difficult to position the plurality of steel cylinders in the inclination direction.

In consideration of the above facts, an object of the present invention is to provide a joint member and a shaft member joint structure in which the shaft member can be easily positioned.

The joint member according to the first aspect has a base plate joined to a structural member and the tip surfaces of cut ends of a plurality of shaft members are joined, and a base plate erected from the base plate and the slope of the cut end is a plate surface. It has a partition plate to be joined to the partition plate, and a positioning plate which is projected from the plate surface of the partition plate and is inserted into and joined to a slit formed in the axial direction of the shaft member.

According to the joint member described in the first aspect , the base plate is joined to the structural member, and the tip surfaces of the cut ends of a plurality of shaft members are joined to the base plate, whereby the inside of the plate surface of the base plate is adopted. If so, the tip surface of the shaft member can be joined. Further, by adopting a structure in which the slope of the cut end is joined to the partition plate erected from the base plate, the joining work becomes easier as compared with the structure in which the cut ends are joined to each other. Further, by inserting the positioning plate protruding from the plate surface of the partition plate into the slit formed in the axial direction of the shaft material, the inclination of the shaft material with respect to the partition plate is determined.

In the shaft member joint structure according to the second aspect , the first shaft member, the base plate joined to the end portion of the first shaft member, the end portion is cut diagonally to form a cut end, and the tip surface thereof is described. A plurality of second shaft members joined to the base plate, a partition plate erected from the base plate and the slope of the cut end of the second shaft member joined to the plate surface, and a protrusion from the plate surface of the partition plate. It has a provided positioning plate and a slit formed in the axial direction of the second shaft member and into which the positioning plate is inserted and joined.

According to the shaft member joint structure described in the second aspect , the base plate is joined to the end portion of the first shaft member. The ends of the plurality of second shaft members are cut diagonally to form a cut end, and the tip surfaces of the cut ends of the plurality of second shaft members are joined to the base plate. As a result, the tip surfaces of a plurality of shaft members can be joined as long as they are within the plate surface of the base plate. Further, the slope of the cut end of the second shaft member is joined to the plate surface of the partition plate erected from the base plate. This facilitates the joining work as compared with the configuration in which the cut ends of the second shaft member are joined to each other.

Further, the positioning plate is projected from the plate surface of the partition plate, and the inclination of the second shaft material with respect to the partition plate is determined by inserting the positioning plate into the slit formed in the axial direction of the second shaft material. .. Therefore, the edge of the slit of the second shaft member and the positioning plate can be easily joined, and the plate surface of the partition plate and the slope of the cut end of the second shaft member can be easily joined. Further, since the positioning plate is arranged inside the cross section of the second shaft member, the strength of the joint portion is improved.

In the shaft material joint structure according to the third aspect, in the shaft material joint structure according to the second aspect , the first shaft material and the second shaft material are steel pipes.

According to the shaft material joint structure described in the third aspect , the weight of the structure constructed of the shaft material can be reduced. Further, by adopting the shaft material joint structure, even if it is a steel pipe, the shaft material can be assembled with the same accuracy as the bar material whose cut end is a surface. Furthermore, even if the second shaft material is a steel pipe, it can be joined with a positioning plate with a sufficient length in the axial direction of the steel pipe, and local buckling caused by the concentration of surface stress on the side surface of the steel pipe can be prevented. It can be suppressed.

The shaft material joint structure according to the fourth aspect is the shaft material joint structure according to the second aspect or the third aspect , wherein the end portion of the first shaft material, the base plate, and the tip of the cut end of the second shaft material are used. The surface and the base plate, the partition plate and the slope of the cut end of the second shaft material, and the positioning plate and the slit of the second shaft material are fillet welded, and the surplus portion is polished and finished.

According to the shaft member joint structure according to the fourth aspect , fillet welding and polishing finish can be performed from the outside of the shaft member joint structure, and the appearance of the joint portion is also improved.

According to the joint member and the shaft material joint structure of the present invention, the shaft material can be easily positioned.

It is a front view which shows the shaft material joint structure of 1st Embodiment. It is an exploded perspective view which shows the shaft material joint structure of 1st Embodiment by disassembling a part. It is a perspective view which shows the joint member used for the shaft material joint structure of 1st Embodiment. It is a side view which shows the 2nd shaft material and the positioning plate used for the shaft material joint structure of 1st Embodiment. It is a vertical sectional view which shows the shaft material joint structure of 1st Embodiment. It is sectional drawing (cross-sectional view along line 6-6 in FIG. 4) which shows the shaft material joint structure of 1st Embodiment. (A) is a cross-sectional view showing a state where the second shaft material and the positioning plate in the shaft material joint structure of the first embodiment are fillet welded, and (B) is a surplus portion generated by fillet welding. Is a cross-sectional view showing a state of being polished and finished. It is a front view which shows the shaft material joint structure of 2nd Embodiment. It is a top view which shows the shaft material joint structure of 2nd Embodiment.

Embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that those having low relevance to the present invention are not shown.

[First Embodiment]
The shaft material joint structure of the first embodiment will be described with reference to FIGS. 1 to 7.

(structure)
FIG. 1 is a front view showing the shaft material joint structure 10 of the first embodiment, and FIG. 2 is an exploded perspective view showing a part of the shaft material joint structure 10. As shown in FIGS. 1 and 2, the shaft member joint structure 10 is a structure in which the first shaft member 12 is branched into a plurality of (two in the present embodiment) second shaft members 14 and 16. The shaft member joint structure 10 includes a joint member 20 for branching the first shaft member 12 into two second shaft members 14 and 16 (see FIG. 3). Here, the first shaft member 12 is an example of a structural member. The second shaft members 14 and 16 are examples of shaft members.

As shown in FIGS. 1 to 3, the joint member 20 includes a base plate 22 to which the axial end portion 12A of the first shaft member 12 is joined, and a partition plate 24 erected from the base plate 22. It includes two positioning plates 26 and 28 projecting from the plate surfaces 24A on both sides of the partition plate 24. Further, the joint member 20 includes a split plate 30 projecting from a surface of the base plate 22 opposite to the partition plate 24 (see FIG. 3).

The first shaft member 12 is a member long in the axial direction, and may be either a tubular body or a solid member. In the present embodiment, the first shaft member 12 is a substantially cylindrical pipe body, and is composed of, for example, a steel pipe. As an example, the first shaft member 12 is arranged along substantially the vertical direction. A pair of slits 32 into which the split plate 30 is inserted are formed along the axial direction from the end surface 12B of the first shaft member 12 at the axial end portion (upper end portion in the present embodiment) 12A of the first shaft member 12. (See Fig. 4). The pair of slits 32 are formed at positions facing each other on the wall surface of the end portion 12A of the first shaft member 12.

The joint member 20 is pre-assembled as a single body (see FIG. 3). At the time of assembling the shaft member joint structure 10, the joint member 20 is joined to the end portion 12A of the first shaft member 12. The base plate 22 has a substantially circular shape, and the outer diameter of the base plate 22 is substantially equal to the outer diameter of the end surface 12B of the end portion 12A of the first shaft member 12.

The split plate 30 is joined to the surface of the base plate 22 opposite to the partition plate 24, and extends in a direction intersecting the surface of the base plate 22 (in the present embodiment, a direction substantially orthogonal to each other). The plate thickness of the split plate 30 is slightly smaller than the width of the slit 32. Further, the length in the width direction of the split plate 30 (the length along the surface direction of the base plate 22, that is, the length in the direction orthogonal to the axial direction of the first shaft member 12) is the length of the first shaft member 12. It is almost equal to the outer diameter of the end portion 12A. Further, the axial length of the split plate 30 is set to be substantially equal to or slightly shorter than the axial length of the slit 32 (see FIG. 1).

In the shaft member joint structure 10, both ends of the split plate 30 in the width direction are inserted into the pair of slits 32 of the first shaft member 12, and the peripheral edge portion of the base plate 22 and the end surface 12B of the first shaft member 12 are formed. Are joined by welding. Further, the widthwise end portion of the split plate 30 and the edge portions of the pair of slits 32 of the first shaft member 12 are joined by welding (see FIG. 2). In the present embodiment, the base plate 22 is arranged in a substantially horizontal direction in a state of being joined to the end surface 12B of the first shaft member 12. The split plate 30 has a function as a positioning plate for positioning the base plate 22 of the joint member 20 with respect to the end surface 12B of the first shaft member 12.

The second shaft members 14 and 16 are members that are long in the axial direction, and may be either a tubular body or a solid member. In the present embodiment, the second shaft members 14 and 16 are formed into a substantially cylindrical pipe body, and are made of, for example, a steel pipe. The outer diameter of the second shaft member 14 and the outer diameter of the second shaft member 16 are smaller than the outer diameter of the first shaft member 12. The second shaft member 14 is provided so as to be inclined in one direction from the end portion 12A of the first shaft member 12 via the joint member 20, and the second shaft member 16 is provided at the end portion of the first shaft member 12. It is provided so as to be inclined from 12A via the joint member 20 in a direction different from that of the second shaft member 14.

On the other hand, the second shaft member 14 is arranged diagonally with respect to the vertical direction, and the end portion (lower end portion in this embodiment) 14A in the axial direction is the end portion of the first shaft member 12 via the joint member 20. It is joined to 12A. More specifically, in the second shaft member 14, the end portion 14A is cut diagonally to form a cut end 34. The cut end 34 of the second shaft member 14 includes a tip surface 34A formed in a part of the circumferential direction of the second shaft member 14 and a slope 34B cut diagonally with respect to the tip surface 34A. (See FIG. 2). Further, a slit 36 is formed in the end portion 14A of the second shaft member 14 so as to be arranged along the axial direction from the tip surface 34A and into which one of the positioning plates 26 is inserted.

The other second shaft member 16 is arranged diagonally in a direction different from that of the second shaft member 14 in the vertical direction, and the axial end portion (lower end portion in the present embodiment) 16A forms the joint member 20. It is joined to the end portion 12A of the first shaft member 12 via. More specifically, in the second shaft member 16, the end portion 16A is cut diagonally to form a cut end 38. The cut end 38 of the second shaft member 16 includes a tip surface 38A formed in a part of the circumferential direction of the second shaft member 16 and a slope 38B cut diagonally with respect to the tip surface 38A. (See FIG. 2). Further, a slit 40 is formed in the end portion 16A of the second shaft member 16 so as to be arranged along the axial direction from the tip surface 38A and into which the other positioning plate 28 is inserted.

The partition plate 24 is joined to the surface of the base plate 22 and extends in a direction intersecting the surface of the base plate 22 (in the present embodiment, a direction substantially orthogonal to each other). In the present embodiment, the partition plate 24 extends from the surface of the base plate 22 in the direction opposite to the projecting direction of the split plate 30. Further, as an example, the partition plate 24 is arranged along substantially the vertical direction with respect to the base plate 22. In the shaft member joint structure 10, the number of partition plates 24 is one, and the partition plate 24 is interposed between the two second shaft members 14 and 16. The partition plate 24 includes an arc-shaped (substantially inverted U-shaped in this embodiment) peripheral edge portion 24B. The shape of the peripheral edge portion 24B of the partition plate 24 is formed in accordance with the shape of the slope 34B of the cut end 34 of the second shaft member 14 and the shape of the slope 38B of the cut end 38 of the second shaft member 16. That is, the shape of the peripheral edge portion 24B of the partition plate 24 is formed so that the slope 34B of the cut end 34 of the second shaft member 14 and the slope 38B of the cut end 38 of the second shaft member 16 can be butted against each other.

The shape of the tip surface 34A of the second shaft member 14 is formed to match the shape of the peripheral edge portion on one of the positioning plates 26 side of the base plate 22. That is, the shape of the tip surface 34A of the second shaft member 14 is formed so as to be able to butt against the peripheral edge portion on one of the positioning plates 26 side of the base plate 22.

The positioning plate 26 is formed in a substantially rectangular shape, and one side thereof is joined to one plate surface 24A of the partition plate 24. Further, the side of the positioning plate 26 adjacent to the partition plate 24 is joined to the surface of the base plate 22 opposite to the split plate 30. That is, the positioning plate 26 extends in a direction intersecting the plate surface 24A of the partition plate 24 and extends in a direction intersecting the surface of the base plate 22. The plate thickness of the positioning plate 26 is slightly smaller than the width of the slit 36 of the second shaft member 14. Further, the axial length of the portion inserted into the slit 36 of the positioning plate 26 is substantially equal to the axial length of the slit 36, or slightly shorter than the axial length of the slit 36 (see FIG. 4). ). Further, the length of the positioning plate 26 in the width direction (the length along the surface direction of the base plate 22) is set according to the position of the slit 36 of the second shaft member 14.

In the shaft member joint structure 10, the end portion in the width direction of the positioning plate 26 (the end portion on the opposite side to the partition plate 24) is inserted into the slit 36 of the second shaft member 14 and is connected to the peripheral edge portion of the base plate 22. The tip surface 34A of the cut end 34 of the second shaft member 14 is joined by welding. At the same time, the peripheral edge portion 24B of the partition plate 24 and the slope 34B of the cut end 34 of the second shaft member 14 are joined by welding (see FIG. 1). Further, the widthwise end of the positioning plate 26 and the edge of the slit 36 of the second shaft member 14 are joined by welding (see FIG. 4). As a result, the positioning plate 26 is arranged so as to penetrate the cross section of the end portion 14A of the second shaft member 14 (see FIGS. 5 and 6).

Further, the shape of the tip surface 38A of the second shaft member 16 is formed to match the shape of the peripheral edge portion on the other positioning plate 28 side of the base plate 22. That is, the shape of the tip surface 38A of the second shaft member 16 is formed so as to be able to butt against the peripheral edge portion of the base plate 22 on the other positioning plate 28 side.

The positioning plate 28 is formed in a substantially rectangular shape, and one side thereof is joined to the other plate surface (plate surface opposite to the positioning plate 26) 24A of the partition plate 24. Further, the side of the positioning plate 28 next to the partition plate 24 is joined to the surface of the base plate 22 opposite to the split plate 30. That is, the positioning plate 28 extends in a direction intersecting the plate surface 24A of the partition plate 24, and extends in a direction intersecting the surface of the base plate 22. In the present embodiment, the positioning plate 28 and the positioning plate 26 extend in opposite directions with respect to the partition plate 24 (see FIG. 2). The plate thickness of the positioning plate 28 is slightly smaller than the width of the slit 40 of the second shaft member 16. Further, the axial length of the portion inserted into the slit 40 of the positioning plate 28 is substantially equal to the axial length of the slit 40, or slightly shorter than the axial length of the slit 40. Further, the length of the positioning plate 28 in the width direction (the length along the surface direction of the base plate 22) is set according to the position of the slit 40 of the second shaft member 16.

In the shaft member joint structure 10, the end portion in the width direction of the positioning plate 28 (the end portion on the opposite side to the partition plate 24) is inserted into the slit 40 of the second shaft member 16 and is connected to the peripheral edge portion of the base plate 22. The tip surface 38A of the cut end 38 of the second shaft member 16 is joined by welding. At the same time, the peripheral edge portion 24B of the partition plate 24 and the slope 38B of the cut end 38 of the second shaft member 16 are joined by welding (see FIG. 1). Further, the widthwise end portion of the positioning plate 28 and the edge portion of the slit 40 of the second shaft member 16 are joined by welding. As a result, the positioning plate 28 is arranged so as to penetrate the cross section of the end portion 16A of the second shaft member 16 (see FIGS. 5 and 6).

Further, FIG. 7A shows a cross-sectional view showing a state in which the positioning plate 26 and the edge portion of the slit 36 of the second shaft member 14 are joined by fillet welding. As shown in FIG. 7A, when the positioning plate 26 and the edge portion of the slit 36 of the second shaft member 14 are fillet welded, the welded portions 44 on both sides of the positioning plate 26 are raised, resulting in a surplus. The ridge 44A is formed. As shown in FIG. 7B, by polishing and finishing the surplus portion 44A from the outer wall surface side of the second shaft member 14, the outer wall surface of the second shaft member 14, the end surface of the positioning plate 26, and the welded portion 44 A polished finish 44B having a smooth surface is formed.

Although not shown, the end portion 12A of the first shaft member 12 and the base plate 22, the tip surface 34A of the cut end 34 of the second shaft member 14, the base plate 22, and the tip surface of the cut end 38 of the second shaft member 16 38A and base plate 22, partition plate 24 and slope 34B of cut end 34 of second shaft material 14, slope 38B of partition plate 24 and cut end 38 of second shaft material 16, and slit of positioning plate 28 and second shaft material 16. The edge portion of 40 is similarly fillet welded, and the surplus portion is polished and finished.

(Action and effect)
Next, the operation and effect of this embodiment will be described.

When the joint member 20 is joined to the end portion 12A of the first shaft member 12, the base plate 22 is in a state where both ends in the width direction of the split plate 30 are inserted into the pair of slits 32 of the first shaft member 12. It is abutted against the end face 12B of the first shaft member 12. Then, the peripheral edge portion of the base plate 22 and the end surface 12B of the first shaft member 12 are joined by welding, and the split plate 30 and the edge portion of the slit 32 of the first shaft member 12 are joined by welding (see FIG. 2). ).

Further, when the end portion 14A of the second shaft member 14 is joined to the end portion 12A of the first shaft member 12 via the joint member 20, the partition plate 24 is projected from the partition plate 24 into the slit 36 of the second shaft member 14. Insert the positioning plate 26. Then, the tip surface 34A of the cut end 34 of the second shaft member 14 is abutted against the peripheral edge portion of the base plate 22, and the slope 34B of the cut end 34 of the second shaft member 14 is abutted against the peripheral edge portion 24B of the partition plate 24. This facilitates the diagonal positioning of the second shaft member 14 with respect to the partition plate 24. In this state, the peripheral edge portion of the base plate 22 and the tip surface 34A of the cut end 34 of the second shaft member 14 are joined by welding. At the same time, the peripheral edge portion 24B of the partition plate 24 and the slope 34B of the cut end 34 of the second shaft member 14 are joined by welding (see FIG. 1). Further, the positioning plate 26 and the edge portion of the slit 36 of the second shaft member 14 are joined by welding. As a result, the positioning plate 26 is arranged so as to penetrate the cross section of the end portion 14A of the second shaft member 14 (see FIGS. 5 and 6).

Further, when the end portion 16A of the second shaft member 16 is joined to the end portion 12A of the first shaft member 12 via the joint member 20, the end portion 16A of the second shaft member 16 is projected from the partition plate 24 into the slit 40 of the second shaft member 16. The positioning plate 28 is inserted. Then, the tip surface 38A of the cut end 38 of the second shaft member 16 is abutted against the peripheral edge portion of the base plate 22, and the slope 38B of the cut end 38 of the second shaft member 16 is abutted against the peripheral edge portion 24B of the partition plate 24. This facilitates the diagonal positioning of the second shaft member 16 with respect to the partition plate 24. In this state, the peripheral edge portion of the base plate 22 and the tip surface 38A of the cut end 38 of the second shaft member 16 are joined by welding. At the same time, the peripheral edge portion 24B of the partition plate 24 and the slope 38B of the cut end 38 of the second shaft member 16 are joined by welding (see FIG. 1). Further, the positioning plate 28 and the edge portion of the slit 40 of the second shaft member 16 are joined by welding. As a result, the positioning plate 28 is arranged so as to penetrate the cross section of the end portion 16A of the second shaft member 16 (see FIGS. 5 and 6).

As a result, the shaft member joint structure 10 in which the two second shaft members 14 and 16 are joined to the end portion 12A of the first shaft member 12 via the joint member 20 is constructed. Although not shown, a shaft material joint structure may be provided for each of the plurality of branched second shaft members 14 and 16, respectively, and further, each of the plurality of shaft materials branched by the shaft material joint structure may be provided. A shaft member joint structure may be provided. By combining a plurality of shaft member joint structures, a tree structure in which a branch-shaped shaft member is branched into a plurality of shaft members is constructed. This tree structure can be used, for example, for pillars of structures.

In the shaft member joint structure 10 described above, the tip surfaces 34A and 38A of the cut ends 34 and 38 of the plurality of second shaft members 14 and 16 are joined to the base plate 22 joined to the end portion 12A of the first shaft member 12. By adopting the above, the tip surfaces 34A and 38A of the cut ends 34 and 38 of the second shaft members 14 and 16 can be joined as long as they are inside the plate surface of the base plate 22. Further, by adopting a configuration in which the slopes 34B and 38B of the cut portions 34 and 38 of the second shaft members 14 and 16 are joined to the partition plate 24 erected from the base plate 22, the slopes of the cut ends are joined to each other. In comparison, the joining work becomes easier.

Further, by inserting the positioning plate 26 projecting from one plate surface 24A of the partition plate 24 into the slit 36 formed in the axial direction of the second shaft member 14, the second shaft member is inserted into the partition plate 24. The inclination of 14 is determined. Similarly, by inserting the positioning plate 28 projecting from the other plate surface 24A of the partition plate 24 into the slit 40 formed in the axial direction of the second shaft member 16, the second shaft with respect to the partition plate 24 The inclination of the material 16 is determined. That is, it is easy to position the second shaft members 14 and 16. As a result, the edge portion of the slit 36 of the second shaft member 14 and the positioning plate 26 can be easily joined, and the peripheral portion 24B of the partition plate 24 and the slope 34B of the cut end 34 of the second shaft member 14 can be joined. It will be easy. Further, the edge portion of the slit 40 of the second shaft member 16 and the positioning plate 28 can be easily joined, and the peripheral portion 24B of the partition plate 24 and the slope 38B of the cut end 38 of the second shaft member 16 can be easily joined. It becomes. Further, since the positioning plates 26 and 28 are arranged inside the cross section of the second shaft members 14 and 16, the strength of the joint portion of the second shaft members 14 and 16 is improved.

Further, in the shaft member joint structure 10, since the first shaft member 12 and the second shaft members 14 and 16 are steel pipes, the weight of the structure constructed by the first shaft member 12 and the second shaft members 14 and 16 is lightweight. Can be achieved. Further, by adopting the shaft member joint structure 10, even if it is a steel pipe, the first shaft member 12 and the second shaft members 14 and 16 can be assembled with the same accuracy as the bar material whose cut end is a surface. Further, even if the second shaft members 14 and 16 are steel pipes, the positioning plates 26 and 28 can be welded with a sufficient welding length in the axial direction of the second shaft members 14 and 16, and can be welded to the side surface of the steel pipe. Local buckling caused by the concentration of stress can be suppressed.

Further, in the shaft member joint structure 10, as shown in FIGS. 7A and 7B, the positioning plate 26 and the edge portion of the slit 36 of the second shaft member 14 are fillet welded, and the surplus portion 44A. Is polished. Further, the end portion 12A and the base plate 22 of the first shaft member 12, the tip surface 34A and the base plate 22 of the cut end 34 of the second shaft member 14, the tip surface 38A and the base plate 22 of the cut end 38 of the second shaft member 16, The partition plate 24 and the slope 34B of the cut end 34 of the second shaft member 14, the slope 38B of the cut end 38 of the partition plate 24 and the second shaft member 16, and the slit 40 of the positioning plate 28 and the second shaft member 16 are similarly the same. Fillet welded and the surplus is polished. Therefore, fillet welding and polishing finish can be performed from the outside of the shaft member joint structure 10, and the appearance of the joint portion is also improved.

[Second Embodiment]
Next, the shaft material joint structure of the second embodiment will be described with reference to FIGS. 8 and 9. The same components as those of the first embodiment described above will be assigned the same number and the description thereof will be omitted.

As shown in FIGS. 8 and 9, the shaft member joint structure 50 is a structure in which the first shaft member 52 is branched into a plurality of (three in this embodiment) second shaft members 54, 56, 58. .. The shaft member joint structure 50 includes a joint member 60 for branching the first shaft member 52 into three second shaft members 54, 56, 58 (see FIG. 3). Here, the first shaft member 52 is an example of a structural member, and the second shaft members 54, 56, 58 are examples of a shaft member.

The joint member 60 includes a base plate 62 to which the axial end portion 52A of the first shaft member 52 is joined, and three partition plates 64, 66, 68 erected from the base plate 62. .. The partition plates 64, 66, and 68 are joined at a joint portion 69 near the central portion of the base plate 62 (see FIG. 9). Further, the joint member 60 includes a positioning plate 70 projecting from one plate surface of the partition plate 66, a positioning plate 72 projecting from a plate surface near the joint portion 69 of the partition plate 68, and the partition plate 66. A positioning plate 74 projecting from the other plate surface is provided (see FIG. 9).

As an example, the first shaft member 52 is arranged along substantially the vertical direction. In the present embodiment, the first shaft member 52 is a substantially cylindrical pipe body, and is composed of, for example, a steel pipe.

The second shaft members 54, 56, and 58 are arranged obliquely in different directions with respect to the vertical direction from the axial end portion (upper end portion in this embodiment) 52A of the first shaft member 52 via the joint member 60. Has been done. In the present embodiment, the second shaft members 54, 56, 58 have a substantially cylindrical tube body, and are made of, for example, a steel pipe.

The base plate 62 has a substantially circular shape and is joined to the end surface of the end portion 52A of the first shaft member 52 by welding.

The second shaft member 54 has a cut end 80 formed by diagonally cutting the end portion (lower end portion in the present embodiment) 54A in the axial direction. The cut end 80 is cut diagonally in a direction different from the tip surface 80A of the second shaft member 54, the slope 80B cut diagonally in one direction with respect to the tip surface 80A, and the slope 80B with respect to the tip surface 80A. It is equipped with a slope 80C. Further, a slit 82 into which the positioning plate 70 is inserted and joined is formed along the axial direction at the axial end portion 54A of the second shaft member 54.

The second shaft member 56 has a cut end 84 formed by diagonally cutting the end portion (lower end portion in the present embodiment) 56A in the axial direction. The cut edge 84 is cut diagonally with respect to the tip surface 84A of the second shaft member 56, the slope 84B cut diagonally in one direction with respect to the tip surface 84A, and the slope 84B with respect to the tip surface 80A. It is equipped with a slope 84C. Further, a slit 86 into which the positioning plate 72 is inserted and joined is formed along the axial direction at the axial end portion 56A of the second shaft member 56.

The second shaft member 58 has a cut end 88 formed by diagonally cutting the end portion (lower end portion in the present embodiment) 58A in the axial direction. The cut edge 88 is cut diagonally with respect to the tip surface 88A of the second shaft member 58, the slope 88B cut diagonally in one direction with respect to the tip surface 88A, and the slope 88B with respect to the tip surface 80A. It is equipped with a slope 88C. Further, a slit 90 into which the positioning plate 74 is inserted and joined is formed along the axial direction at the axial end portion 58A of the second shaft member 58.

The partition plates 64, 66, and 68 extend in a direction intersecting the surface of the base plate 62 (in the present embodiment, a direction substantially orthogonal to each other), and are arranged radially from the vicinity of the center of the base plate 62 in a plan view. ing. The partition plate 64 is configured to be interposed between a part of the second shaft member 54 and a part of the second shaft member 56, and the partition plate 66 is another part of the second shaft member 54. It is configured to be interposed between the second shaft member 58 and a part of the second shaft member 58 (see FIG. 9). Further, the partition plate 68 is configured to be interposed between the other part of the second shaft member 56 and the other part of the second shaft member 58 (see FIG. 9).

In the shaft member joint structure 50, in a state where the positioning plate 70 is inserted into the slit 82 of the second shaft member 54, the peripheral edge portion of the base plate 62 and the tip surface 80A of the cut end 80 of the second shaft member 54 are joined by welding. (See Fig. 9). At the same time, the peripheral edge of the partition plate 64 and the slope 80B of the cut end 80 of the second shaft member 54 are joined by welding (see FIG. 9). Further, the peripheral edge portion of the partition plate 66 and the slope 80C of the cut end 80 of the second shaft member 54 are joined by welding (see FIG. 9). Further, the positioning plate 70 and the edge portion of the slit 82 of the second shaft member 54 are joined by welding (see FIG. 9). As a result, the positioning plate 70 is arranged so as to penetrate the cross section of the end portion 54A of the second shaft member 54 (see FIG. 8).

Further, in the shaft member joint structure 50, the peripheral edge portion of the base plate 62 and the tip surface 84A of the cut end 84 of the second shaft member 56 are welded while the positioning plate 72 is inserted into the slit 86 of the second shaft member 56. It is joined by (see FIG. 9). At the same time, the peripheral edge of the partition plate 64 and the slope 84B of the cut end 84 of the second shaft member 56 are joined by welding (see FIG. 9). Further, the peripheral edge portion of the partition plate 68 and the slope 84C of the cut end 84 of the second shaft member 56 are joined by welding (see FIG. 9). Further, the positioning plate 72 and the edge portion of the slit 86 of the second shaft member 56 are joined by welding (see FIG. 9). As a result, the positioning plate 72 is arranged so as to penetrate the cross section of the end portion 56A of the second shaft member 56 (see FIG. 8).

Further, in the shaft member joint structure 50, the peripheral edge portion of the base plate 62 and the tip surface 88A of the cut end 88 of the second shaft member 58 are welded while the positioning plate 74 is inserted into the slit 90 of the second shaft member 58. It is joined by (see FIG. 9). At the same time, the peripheral edge of the partition plate 66 and the slope 88B of the cut end 88 of the second shaft member 58 are joined by welding (see FIG. 9). Further, the peripheral edge portion of the partition plate 68 and the slope 88C of the cut end 88 of the second shaft member 58 are joined by welding (see FIG. 9). Further, the positioning plate 74 and the edge portion of the slit 90 of the second shaft member 58 are joined by welding (see FIG. 9). As a result, the positioning plate 74 is arranged so as to penetrate the cross section of the end portion 58A of the second shaft member 58.

Further, in the shaft member joint structure 50, although not shown, the positioning plate 70 and the edge portion of the slit 82 of the second shaft member 54 are fillet welded, and the surplus portion is polished and finished. Similarly, the edge portion of the positioning plate 72 and the slit 86 of the second shaft member 56, and the edge portion of the positioning plate 74 and the slit 90 of the second shaft member 58 are fillet welded, and the surplus portion is polished and finished. .. Further, the end portion 52A and the base plate 62 of the first shaft material 52, the tip surface 80A and the base plate 62 of the cut end 80 of the second shaft material 54, the tip surface 84A and the base plate 62 of the cut end 84 of the second shaft material 56, The tip surface 88A of the cut end 88 of the second shaft member 58 and the base plate 62 are fillet welded, and the surplus portion is polished and finished. Further, the slope 80B of the cut end 80 of the partition plate 64 and the second shaft member 54, the slope 84B of the cut end 84 of the partition plate 64 and the second shaft member 56, the slope 80C of the cut end 80 of the partition plate 66 and the second shaft material 54, The corners are the slope 80B of the cut end 88 of the partition plate 66 and the second shaft member 58, the slope 84C of the cut end 84 of the partition plate 68 and the second shaft material 56, and the slope 84C of the cut end 88 of the partition plate 68 and the second shaft material 58. It is fill-welded and the surplus part is polished.

In the shaft material joint structure 50 described above, the same operation and effect can be obtained by the same configuration as the shaft material joint structure 10 of the first embodiment.

Although not shown, a shaft material joint structure may be provided for each of the plurality of branched second shaft materials 54, 56, 58, and a plurality of shaft materials branched by the shaft material joint structure. A shaft material joint structure may be provided for each of the above. By combining a plurality of shaft member joint structures, a tree structure in which a branch-shaped shaft member is branched into a plurality of shaft members is constructed. Further, by combining the shaft material joint structure 10 of the first embodiment and the shaft material joint structure 50 of the second embodiment, a tree structure in which the branched shaft material is branched into a plurality of shaft materials may be constructed. .. This tree structure can be used, for example, for pillars of structures.

〔supplementary explanation〕
In the first and second embodiments, the first shaft members 12, 52 and the second shaft members 14, 16, 54, 56, 58 are composed of a substantially cylindrical tubular body, but the present invention has this configuration. It is not limited. For example, the first shaft member and the second shaft member may be composed of a tube body having another shape such as a square tube, or may be composed of a solid shaft member such as a circular or square shape.

In the first and second embodiments, the first shaft members 12 and 52 are arranged substantially in the vertical direction, but the present invention is not limited to this configuration. For example, the first shaft member may be arranged diagonally with respect to the vertical direction. Further, the inclination angle and the inclination direction of the second shaft member 14, 16, 54, 56, 58 with respect to the vertical direction can be changed.

Further, in the first and second embodiments, the base plates 22 and 62 are joined to the ends 12A and 52A of the first shaft members 12 and 52, but the present invention is not limited to this configuration. For example, a joint structure may be obtained in which a base plate is joined to a structural member other than the shaft member, and a plurality of shaft members (second shaft members) are joined to the base plate via the joint member.

Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It is obvious to the trader.

10 Shaft material joint structure 12 First shaft material (an example of structural member)
12A End 14 2nd shaft material (example of shaft material)
14A End 16 2nd shaft material (example of shaft material)
16A End 20 Joint member 22 Base plate 24 Partition plate 24A Plate surface 26 Positioning plate 28 Positioning plate 34 Cut edge 34A Tip surface 34B Slope 36 Slit 38 Cut edge 38A Tip surface 38B Slope 40 Slit 44A Overlay part 44B Polished finish part 50 Shaft material Joint structure 52 Base plate 52 First shaft member (example of structural member)
52A End 54 2nd shaft material (example of shaft material)
54A End 56 2nd shaft material (example of shaft material)
56A End 58 2nd shaft material (example of shaft material)
58A End 60 Joint member 62 Base plate 64 Partition plate 66 Partition plate 68 Partition plate 70 Positioning plate 72 Positioning plate 74 Positioning plate 80 Cutting edge 80A Tip surface 80B Slope 80C Slope 82 Slit 84 Slit 84A Tip surface 84B Slope 84C Slope 86 Slit 88 Cut 88A Tip surface 88B Slope 88C Slope 90 Slit

Claims (4)

A base plate that is joined to a structural member and the tip surfaces of the cut ends of multiple shaft members are joined to each other.
A partition plate that is erected from the base plate and the slope of the cut end is joined to the plate surface.
A positioning plate that protrudes from the plate surface of the partition plate and is inserted into and joined to one slit formed in the axial direction of the shaft member facing the cut end.
Have,
The structural member and the shaft member have a circular cross section in a direction orthogonal to the axial direction.
The shape of the peripheral edge portion of the partition plate is formed according to the shape of the slope of the cut end, and the peripheral edge portion of the partition plate and the slope of the cut end are joined to each other.
The shape of the tip surface of the cut is formed so as to be able to abut against the peripheral edge of the base plate, and the tip surface of the cut and the peripheral edge of the base plate are joined.
The end portion of the positioning plate is a joint member formed in accordance with the position of the slit, and the end portion of the positioning plate and the edge portion of the slit are joined to each other. 1st shaft material and
A base plate joined to the end of the first shaft member and
A plurality of second shaft members whose ends are cut diagonally to form a cut end surface and whose tip surface is joined to the base plate.
A partition plate that is erected from the base plate and has a slope of the cut end of the second shaft member joined to the plate surface.
A positioning plate protruding from the plate surface of the partition plate and
A slit that faces the cut end and is formed in the axial direction of the second shaft member and into which the positioning plate is inserted and joined.
Have,
The first shaft member and the second shaft member have a circular cross section in a direction orthogonal to the axial direction.
The peripheral edge portion of the base plate is formed according to the outer shape of the first shaft member, and the peripheral edge portion of the base plate and the end face of the first shaft member are joined to each other.
The shape of the peripheral edge portion of the partition plate is formed according to the shape of the slope of the cut end of the second shaft member, and the peripheral edge portion of the partition plate and the slope of the cut end of the second shaft member are joined to each other.
The shape of the tip surface of the cut end of the second shaft member is formed so as to be able to butt against the peripheral edge portion of the base plate, and the tip end surface of the cut end of the second shaft material and the peripheral edge portion of the base plate are joined to each other. And
A shaft material joint structure in which the end portion of the positioning plate is formed in accordance with the position of the slit, and the end portion of the positioning plate and the edge portion of the slit are joined. The shaft material joint structure according to claim 2, wherein the first shaft material and the second shaft material are steel pipes. The end of the first shaft member and the base plate, the tip surface of the cut end of the second shaft material and the base plate, the partition plate and the slope of the cut end of the second shaft material, and the positioning plate and the second The shaft material joint structure according to claim 2 or 3, wherein the slit of the shaft material is fillet welded and the surplus portion is polished and finished.

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