JPH11158828A - Structure and method for connection of column and literal pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure and method for connection capable of connecting a column and a lateral, pipe of different materials to each other, facilitating the replacement and installation of the lateral pipe, and excellent in appearance. SOLUTION: A plate for fixing 3 is installed on the side of a column 1, and a cut part 21 for insertion of the plate for fixing 3 is provided at the end part 23 of a lateral pipe 2. The plate for fixing 3 is inserted into a hollow inside the lateral pipe through the cut part 21. Then a bolt 52 is screwed into a screw hole 30 provided in the plate for fixing 3 so as to press three points of the top end 526 of the bolt 52 and contact ends 36 of the plate for fixing 3 at both side ends against the inner wall 26 of the lateral pipe 2. Thus the lateral pipe 2 is fixed to the column 1 through the plate 3 for fixing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting a column and a horizontal pipe in a handrail of a fence, a building, or the like installed in a park, a road, and the like, and a method of connecting the same.

[0002]

2. Description of the Related Art Conventionally, in a road fence, a column and a horizontal pipe have been fixed by the following three connection methods. That is, as a connection method, there are a method of welding the horizontal pipe to the column, a method of fixing the horizontal pipe to the column using a fixing jig, and a method of inserting the horizontal pipe into a through hole of the column.

[0003] First, a structure connected by a method of welding a horizontal pipe to a column (hereinafter, referred to as a welding method) will be described with reference to FIG. In this connection structure, the support 91 and the horizontal pipe 92 are fixed by welding the support 91 to the support 91. The welded portion 95 between the column 91 and the horizontal pipe 92 is subjected to a surface treatment such as polishing and painting to impair the appearance.

[0004] Next, a structure connected by a method of fixing a horizontal pipe to a column via a fixing jig (hereinafter, a fixing jig method) will be described with reference to FIG. In this connection structure, a support column 91 and a horizontal pipe 92 are fixed to a fixing jig 95.
1 and a bolt 952 penetrating the horizontal pipe 92 and a nut 953 screwed with the bolt 952.

[0005] Next, regarding a structure connected by a method of inserting a horizontal pipe into a through hole of a column (hereinafter referred to as an insertion method),
This will be described with reference to FIG. In this connection structure, the column 91 has a through hole 910 larger than the horizontal pipe 92. This means that even if there are elevations between the struts 91, 91,
This is for making the horizontal pipe 92 easily penetrate. And
The horizontal pipe 92 is inserted into the through hole 910, and the support 91,
91 and the horizontal pipe 92 are fixed.

[0006]

However, the above conventional connection structure and connection method have the following problems. That is, in the welding method, when the support column 91 and the horizontal pipe 92 are made of different metals, it may be difficult to weld them. Further, since the horizontal pipe 92 is directly welded to the column 91, it is difficult to replace the column 91 or the horizontal pipe 92. In some cases, the welded portion 95 needs to be subjected to a surface treatment so as not to significantly impair the appearance. Next, in the fixing jig method, the fixing jig 951, the bolt 952, and the nut 953 are exposed, which may impair the appearance. Further, it is necessary to separately manufacture the fixing jig 951 and perform a complicated fixing operation, which leads to an increase in cost.

On the other hand, in the insertion method, although there is no specific fixing jig, the appearance is good,
0 and the horizontal pipe 92, there is a gap between the horizontal pipe 9
2 causes rattling, and it is difficult to install the horizontal pipe 92 on the support column 91. Further, since the horizontal pipe 92 is penetrated through the through-hole 910 of the support column 91, the replacement of the horizontal pipe 92 is large and difficult when the horizontal pipe 92 is subjected to any impact.

SUMMARY OF THE INVENTION In view of the above problems, the present invention can connect a column and a horizontal pipe made of different materials, and can easily replace and install the horizontal pipe, and provide a connection structure excellent in aesthetics. It is intended to provide a connection method.

[0009]

According to a first aspect of the present invention, a support plate has a fixing plate on a side surface thereof, while a notch for inserting the fixing plate is provided at an end of the horizontal pipe. The fixing plate is inserted into the cavity of the horizontal pipe through the notch, and a bolt is screwed into a screw hole provided in the fixing plate. By pressing three points with the contact end against the inner wall of the horizontal pipe,
A connection structure between a column and a horizontal pipe, wherein the horizontal pipe is fixed to the column via the fixing plate.

What is most notable in the present invention is that the column and the horizontal pipe are connected by the fixing plate and the bolt, and the fixing plate and the bolt are inserted and arranged in the cavity of the horizontal pipe. It is.

The operation of the present invention will be described below. In the present invention, the horizontal pipe is fixed to the column via the fixing plate. Therefore, even when the support and the horizontal pipe cannot be directly welded with different materials, the support and the horizontal pipe can be easily fixed. When the support and the horizontal pipe cannot be directly welded, for example, the support and the horizontal pipe may be made of different metals such as a steel material and a horizontal pipe such as an aluminum material. Also, even when the material is difficult to weld, such as a metal such as stainless steel or titanium, or when a material such as a synthetic resin or ceramic is used, it is difficult to directly weld the column and the horizontal pipe.

Further, the fixing plate fixed to the side surface of the column and the horizontal pipe are connected by a pressing force by tightening bolts. Therefore, when mounting the horizontal pipe on the support, the height of the bolts is adjusted even if the mounting plates have height differences due to errors in the installation dimensions and the like, and the fixing plates slightly deviate from the straight line, causing a level difference. Thereby, it is possible to cope with a step generated between the columns. Therefore, it is easy to install the horizontal pipe on the column. For the adjustment of the degree of tightening of the bolt, refer to the connection method described later.

Further, the horizontal pipe is fixed to the column via a fixing plate, and is not directly fixed to the column. On the other hand, the fixing plate is fixed so as to protrude from the side surface of the column. Therefore, the horizontal pipe does not require a large amount of work, and can be easily attached to and detached from the fixing plate. Therefore, the horizontal pipe can be easily replaced.

Further, since the fixing plate is inserted into the cavity of the horizontal pipe, the fixing plate can be partially covered with the horizontal pipe. Therefore, the exposed portion of the fixing plate and the bolt screwed into the screw hole, which is the connecting portion between the column and the horizontal pipe, can be reduced. Therefore,
The appearance of the connecting part is excellent in appearance.

Next, as in the second aspect of the present invention, the fixing plate is fixed to the column substantially horizontally, and the cut portion of the horizontal pipe is located below in the connected state. Is preferred.

In this case, since the cut portion of the horizontal pipe is located below, the fixing plate and the bolt can be seen from below, but cannot be seen from above, from the front, and from the rear. Therefore, the appearance of the connecting portion between the column and the horizontal pipe is more excellent. However, depending on the installation location, etc., it may be preferable that the notch is slanted, rear-downward, etc. In this case, the angle of the fixing plate may be changed or the shape of the fixing plate may be inclined. Can be easily handled.

Next, as in the third aspect of the present invention, it is preferable that the bolt is screwed until the head thereof is housed in the notch. In this case, all the bolts are housed in the horizontal pipe. Therefore, the exposed portion of the bolt can be further reduced. Therefore, the appearance of the connection between the column and the horizontal pipe is
It is even more beautiful.

Next, as in the invention of claim 4, it is preferable that the abutting end of the fixing plate abutting on the inner wall of the horizontal pipe has a curved surface or an inclined surface. In this case, the contact area between the inner wall of the horizontal pipe and the contact end of the fixing plate can be increased. Therefore, the horizontal pipe and the fixing plate do not slip, and the installation position of the horizontal pipe can be determined stably. Therefore, the installation of the horizontal pipe on the column is much easier. Further, the horizontal pipe and the fixing plate can be more firmly fixed.

Next, as in the fifth aspect of the present invention, the inner wall of the horizontal pipe may be circular or polygonal. In the present invention, in fixing the column and the horizontal pipe, it is sufficient that the inner wall surface of the horizontal pipe can be pressed by the three points of the tip of the bolt and the contact end of the fixing plate. Therefore, the cross-sectional shape of the inner wall of the horizontal pipe can be circular or polygonal. In this case, various cross-sectional designs can be adopted as the horizontal pipe.

Next, as in the sixth aspect of the present invention, a decorative cover made of pottery, plastic, metal or the like can be covered on the outside of the support. In this case, the exposed fixing plate located between the column and the horizontal pipe can be covered with the decorative cover. That is, it is possible to cover the connecting portion between the column and the horizontal pipe. Therefore, the appearance can be further enhanced.

According to a seventh aspect of the present invention, there is provided a column having a fixing plate on a side surface, and a horizontal pipe provided with a notch at an end for inserting the fixing plate. At least a pair of columns are erected so as to face each other, and the fixing plates of the columns are inserted into the hollow portions at both ends of the horizontal pipe through the cutouts, and the horizontal pipe is rotated.
The notch portion and the screw hole of the fixing plate face each other, a bolt is screwed into the screw hole, and three points of the tip of the bolt and the contact ends at both side ends of the fixing plate are set. A method of connecting a column and a horizontal pipe, wherein the horizontal pipe is fixed to the column via the fixing plate by pressing against an inner wall of the horizontal pipe.

The most remarkable point of the present invention is that the fixing plate is inserted from the cut portion of the horizontal pipe into the hollow portion, and the bolt is screwed from the cut portion into the screw hole of the fixing plate. Is pressed against the inner wall of the horizontal pipe.

The operation of the method of the present invention will be described below. According to the present invention, since the cut portion is provided at the end of the horizontal pipe, the fixing plate can be easily inserted into the cavity at both ends of the horizontal pipe from the radial direction of the horizontal pipe. For this reason, the horizontal pipe can be arranged from the front direction between the pair of columns that are erected so that the fixing plates face each other.

Further, the horizontal pipe is pressed from the inside of the cavity by tightening the bolt until the three points of the tip of the bolt and the contact end of the fixing plate press against the inner wall of the horizontal pipe. On the contrary, when the tightening degree of the bolt is loosened, the pressing force on the horizontal pipe by the bolt and the fixing plate is weakened, and the horizontal pipe can be slightly inclined with respect to the fixing plate. Therefore, the horizontal pipe can be easily installed on the column, and the horizontal pipe can be easily replaced.

Further, the horizontal pipe is rotated so that the cut portion of the horizontal pipe faces the screw hole of the fixing plate. Therefore, the notch has two functions, that is, a hole for inserting the fixing plate and a hole for screwing the bolt. The bolts are screwed together with the fixing plate covered by the horizontal pipe. Therefore, the exposed portion of the fixing plate and the bolt is small, and the appearance of the connecting portion between the column and the horizontal pipe can be beautiful. In addition, as described above, since the horizontal pipe is fixed to the column via the fixing plate, even when the column and the horizontal pipe are made of a metal material that cannot be directly welded, both can be easily fixed.

Next, as in the eighth aspect of the present invention, it is preferable that the fixing plate is fixed to the column substantially horizontally, and the horizontal pipe is rotated until the cut portion is located below. . In this case, the same operation and effect as the second aspect can be obtained.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 A method of connecting a column and a horizontal pipe according to an embodiment of the present invention will be described with reference to FIGS. The connection structure of the present example is a connection structure between a column and a horizontal pipe connected by the following connection method. First, in the connection method of the present embodiment, as shown in FIGS. 1 to 3, the column 1 having the fixing plate 3 fixed to the side surface, and the notch 21 for inserting the fixing plate 3 into the end 23. And the horizontal pipe 2 provided with the.

Then, as shown in FIG. 4, at least a pair of columns 1, 1 are erected so that the fixing plate 3 faces each other, and then the cut portion is formed with respect to the thickness T of the fixing plate 3 (FIG. 2). 21 (FIG. 3). Then, as shown in FIG. 5 (A), the fixing plates 3
3 is inserted into the hollow portion 20 of both ends 23 of the horizontal pipe 2. Then, as shown in FIG.
Is completely arranged in the hollow portion 20 of the horizontal pipe 2, and FIG.
As shown in (C), the horizontal pipe 2 is rotated by approximately 90 degrees so that the cut portion 21 is located below, and the cut portion 21 and the screw hole 30 of the fixing plate 3 face each other.

Next, as shown in FIG. 6A, a bolt 52 is screwed into the screw hole 30. Since the fixing plate 3 is fixed to the column 1, when the bolt 52 is tightened, the tip 526 of the bolt 52 is brought into contact with the tip 526 of the bolt 52 and both ends of the fixing plate 3 as shown in FIG. The horizontal pipe 2 is gradually pushed up until three points with the contact end 36 are pressed against the inner wall 26 of the horizontal pipe 2. Then, the horizontal pipe 2 is fixed to the column 1 via the fixing plate 3 by the three pressing forces P. Thereby, as shown in FIG. 4, the horizontal pipe 2 is connected to the columns 1, 1 via the fixing plate 3.
Fixed to.

Next, the connection structure of this embodiment will be described with reference to FIGS. The support 1 is an iron pipe,
As shown in FIG. 3, a through hole 10 is provided on the side surface. The support plate 1 fixes the fixing plate 3 while penetrating the through hole 10. The fixing plate 3 is a flat bar made of stainless steel, and has both ends protruding from the side surface of the column 1. The horizontal pipe 2 is a stainless steel pipe, and has a notch 21 at an end 23 thereof. Both ends of the fixing plate 3 are inserted into the hollow portion 20 of the horizontal pipe 2.

As shown in FIG. 2, the notch 21 of the horizontal pipe 2 is located below, and the fixing plate 3 is fixed to the column 1 substantially horizontally. A bolt 52 having a hexagonal hole is screwed into the screw hole 30 penetrating in the thickness direction of the fixing plate 3 from below the fixing plate 3. Further, the thickness T of the fixing plate 3 is smaller than the width W (FIG. 3) of the cut portion 21. Then, as shown in FIG.
2 presses the horizontal pipe 2 upward from the inside of the cavity 20, while the contact end 36 of the fixing plate 3 presses substantially downward. Thereby, the horizontal pipe 2 is fixed to the column 1 via the fixing plate 3.

Since the horizontal pipe 2 is provided between the columns 1 and 1, its length is shorter than that between the columns 1 and 1 (FIG. 4).

Next, the operation and effect of this embodiment will be described. In the connection structure of this example, the horizontal pipe 2 is fixed to the column 1 via the fixing plate 3. Therefore, as in this example, even when the support 1 is made of an iron material and the horizontal pipe 2 is made of a different metal material such as stainless steel, and cannot be directly welded, the support 1 and the horizontal pipe 2 can be easily connected. Can be fixed.

As shown in FIG. 6B, the fixing plate 3 fixed to the side surface of the column 1 and the horizontal pipe 2 are connected by a pressing force P by tightening a bolt 52. Therefore, when the horizontal pipe 2 is installed on the support 1, an error in the installation dimension causes a height difference between the supports 1 and 1.
Even when the fixing plates 3 and 3 are slightly displaced from each other on a straight line and a step is generated, by adjusting the degree of tightening of the bolt 52, it is possible to cope with the step generated between the columns 1 and 1. Therefore, the horizontal pipe 2 can be easily installed on the column 1.

When a plurality of screw holes 30 are provided in the fixing plate 3 and the horizontal pipe 2 and the fixing plate 3 are fixed by using a plurality of bolts 52, both are more firmly fixed. Can also.

The horizontal pipe 2 is fixed to the column 1 via the fixing plate 3, but is not directly fixed to the column 1. Further, the length of the horizontal pipe 2 is relatively short between the columns 1 and 1. On the other hand, the fixing plate 3 is fixed so as to protrude from the side surface of the column 1 by approximately 5 to 15 cm.
Therefore, the horizontal pipe 2 does not require a large amount of work,
It can be easily attached to and detached from the fixing plate 3. Therefore, replacement of the horizontal pipe 2 can be easily performed.

The fixing plate 3 is provided in the hollow portion 2 of the horizontal pipe 2.
The fixing plate 3 can be partially covered by the horizontal pipe 2 because it is inserted in the inner space 0. Therefore, an exposed portion of the fixing plate 3 and the bolt 52 screwed into the screw hole 30, which is a connecting portion between the column 1 and the horizontal pipe 2, can be reduced. Furthermore, since the notch 21 which is the screwing hole for the bolt 52 is located below, the fixing plate 3 and the bolt 52 can be seen from below, but cannot be seen from above, from the front, and from the rear. Can not. Therefore,
The appearance of the connecting portion between the column 1 and the horizontal pipe 2 is more excellent.

Next, according to the connecting method of this embodiment, since the notch 21 is provided at the end 23 of the horizontal pipe 2, the fixing plate 3 is connected to the both ends of the horizontal pipe 2 from the radial direction of the horizontal pipe 2. Can be easily inserted into the hollow portion 20 of FIG. For this reason, the horizontal pipe 2 can be arranged from the front direction between the pair of columns 1, 1 erected so that the fixing plates 3 face each other.

Further, by tightening the bolt 52 until three points of the tip 526 of the bolt 52 and the contact end 36 of the fixing plate 3 press against the inner wall 26 of the horizontal pipe 2,
The bolt 52 presses the horizontal pipe 2 upward from the inside of the cavity 20, while the fixing plate 3 presses downward. for that reason,
Conversely, when the degree of tightening of the bolt 52 is loosened, the pressing force P on the horizontal pipe 2 by the bolt 52 and the fixing plate 3 becomes weak, and the horizontal pipe 2 is slightly inclined with respect to the fixing plate 3. can do. Therefore, the column 1 of the horizontal pipe 2
The horizontal pipe 2 can be easily replaced while the horizontal pipe 2 can be easily replaced.

As shown in FIG. 5A, the notch 21 has a function of an insertion hole of the fixing plate 3 and
As shown in FIG. 5C, by turning the horizontal pipe 2 by approximately 90 degrees, it has a function of a screwing operation hole of the bolt 52 as shown in FIG. Further, the bolt 52 is screwed together with the fixing plate 3 covered with the horizontal pipe 2. Therefore, the exposed portion of the fixing plate 3 and the bolt 52 is small,
The appearance of the connecting portion between the support 1 and the horizontal pipe 2 can be made beautiful.

Embodiment 2 In this embodiment, as shown in FIGS.
It is covered with a ceramic decorative cover 7. As shown in FIG. 7 to FIG.
8 and 9 are provided.
As shown in FIG. 1, the exposed fixing plate 3 located between the column 1 and the horizontal pipe 2 is covered by being accommodated therein. Further, the decorative cover 7 has a decorative cap 71 made of ceramic on an upper part thereof. FIG. 10 shows the appearance of the connection structure when the decorative cover 7 is covered. Note that the gap between the column 1 and the decorative cover 7 is filled with mortar (not shown) to fix the decorative cover 7. Other configurations are the same as those of the first embodiment.

In this embodiment, the decorative cover 7 covers the connecting portion between the column 1 and the horizontal pipe 2. Therefore, it has the effect of making the appearance even more beautiful. Others have the same operation and effects as the first embodiment.

Embodiment 3 In this embodiment, as shown in FIG. 11, the fixing plate 33 is fixed to the side surface of the column 1 by welding. The base 31 of the fixing plate 33 is joined to the surface of the column 1 at a weld 53. Other configurations are the same as those of the first embodiment. In this embodiment, there is an effect that the fixing plate 33 can be fixed without providing the through-hole 10 in the column 1.
Others have the same operation and effects as the first embodiment.

Fourth Embodiment As shown in FIG. 12, this embodiment uses a contact end 36 of the fixing plate 3.
Is curved so as to contact the inner wall 26 of the horizontal pipe 2.
4 is provided. The radius of curvature of the curved surface 364 is substantially equal to the radius of curvature of the inner wall 26 of the horizontal pipe 2. Other configurations are the same as those of the first embodiment. In this example, since the contact area between the inner wall 26 of the horizontal pipe 2 and the abutting end 36 of the fixing plate 3 can be greatly increased, the horizontal pipe 2 and the fixing plate 3 do not slip, and This has the effect that the installation position of the horizontal pipe 2 can be determined more stably.
Others have the same operation and effects as the first embodiment.

Fifth Embodiment As shown in FIG. 13, this embodiment uses a contact end 36 of the fixing plate 3.
Of the horizontal pipe 2 so as to contact the inner wall 26 of the horizontal pipe 2.
65. Note that the inclined surface 365 is located below the fixing plate 3. Other configurations are the same as those of the first embodiment. In this example, the contact area between the inner wall 26 of the horizontal pipe 2 and the abutting end 36 of the fixing plate 3 can be increased to the upper side and the lower side of the inclined surface 365. The horizontal pipe 2 is more stable without slipping.
There is an effect that the installation position of the device can be determined. Others have the same operation and effects as the first embodiment.

Embodiment 6 In this embodiment, as shown in FIG. 14, the inner wall 26 of the horizontal pipe 2 is an inverted triangle. Other configurations are the same as those of the first embodiment. In the present embodiment, there is an effect that a design having an inverted triangular cross section can be adopted as the horizontal pipe. Others have the same operation and effects as the first embodiment.

Embodiment 7 In this embodiment, as shown in FIG. 15, the inner wall 26 of the horizontal pipe 2 is octagonal. Other configurations are the same as those of the first embodiment. In this example, there is an effect that an octagonal cross-sectional design can be adopted as the horizontal pipe. Others have the same operation and effects as the first embodiment.

Eighth Embodiment As shown in FIG. 16, a head 528 of a bolt 52
Are screwed together until they are housed in the cut portions 21 of the horizontal pipe 2. The fixing plate 38 has a concave portion 385 on the lower surface thereof. The bottom screw hole 30 of the concave portion 385 is provided. And screw hole 3
0 is screwed into the bolt 52, and the bolt 5 is inserted into the concave portion 385.
A part of the second head 528 is inserted. On the other hand, the inner wall 26 of the horizontal pipe 2 is triangular, and the notch 2
1 is located.

The head 528 of the bolt 52 and the fixing plate 38 do not come into contact with each other even when the head 528 of the bolt 52 is housed inside the cut portion 21 of the horizontal pipe 2. That is, the head 528 of the bolt 52 and the fixing plate 3
8, a gap Q exists. Other configurations are the same as those of the first embodiment.

In this embodiment, since all the bolts 52 are housed in the horizontal pipe 2, there is an effect that the exposed portions of the bolts 52 can be further reduced. Further, by adjusting the width of the gap Q, the degree of tightening of the bolt 52 can be adjusted. That is, when the width of the gap Q is reduced, the bolt 52 is firmly tightened, and the column 1 and the horizontal pipe 2 can be firmly fixed. On the other hand, when the width of the gap Q is increased, the bolt 52 is loosely tightened, and it is possible to cope with the step generated between the columns 1 and 1. Others have the same operation and effects as the first embodiment.

The above-described operation is only required if there is a gap between the head 528 of the bolt 52 and the fixing plate 38 regardless of the presence or absence of the concave portion 385. Therefore, Embodiments 1 to 7
Has the same effect.

[0052]

As described above, according to the present invention, it is possible to connect the column and the horizontal pipe made of different materials, and it is easy to replace and install the horizontal pipe, and the connection is excellent in appearance. A structure and connection method can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connection structure between a column and a horizontal pipe according to a first embodiment.

FIG. 2 is a cross-sectional view of the connection structure according to the first embodiment as viewed from the front.

FIG. 3 is a bottom view of the connection structure according to the first embodiment.

FIG. 4 is an overall view of a connection structure according to the first embodiment.

FIG. 5 is a perspective view illustrating a method for inserting a fixing plate into a horizontal pipe according to the first embodiment.

FIG. 6 is a cross-sectional view illustrating a method of fixing the horizontal pipe and the fixing plate according to the first embodiment.

FIG. 7 is a perspective view of a column covered with a decorative cover according to the second embodiment.

FIG. 8 is a cross-sectional view of a connection structure covering a decorative cover according to the second embodiment.

FIG. 9 is a bottom view of a connection structure covering a decorative cover according to the second embodiment.

FIG. 10 is an overall view of a connection structure covering a decorative cover according to the second embodiment.

FIG. 11 is a perspective view showing a state in which a fixing plate is welded to a column according to a third embodiment.

FIG. 12 is a cross-sectional view of a fixing plate having a curved contact end according to a fourth embodiment.

FIG. 13 is a cross-sectional view of a fixing plate according to a fifth embodiment, in which a contact end has an inclined surface.

FIG. 14 is a cross-sectional view of a horizontal pipe having an inverted triangular inner wall according to the sixth embodiment.

FIG. 15 is a cross-sectional view of a horizontal pipe having an octagonal inner wall according to a seventh embodiment.

FIG. 16 is a sectional view illustrating a bolt and a fixing plate having a connection structure according to an eighth embodiment.

17 (A) is a plan view and FIG. 17 (B) is a front view of a connection structure between a column and a horizontal pipe by a welding method according to a conventional example.

FIG. 18 is a plan view of a connection structure between a column and a horizontal pipe by a fixing jig method according to a conventional example.

19 (A) is a perspective view and FIG. 19 (B) is a front view of a connection structure between a column and a horizontal pipe by an insertion method according to a conventional example.

[Explanation of symbols]

 1. . . Props, 2. . . Horizontal pipe, 20. . . Cavity, 21. . . Notch, 23. . . Edge, 26. . . Inner wall, 3. . . Fixing plate, 30. . . Screw holes, 36. . . Contact end, 52. . . Bolt, 526. . . tip,

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Tatsuo Hara 1 Wanowari, Arao-cho, Tokai-shi, Aichi Prefecture Inside Aichi Steel Co., Ltd. ) Inventor Atsuo Osato 92 Ota-cho, Tokai City, Aichi Prefecture Toho Stainless Steel Industry Co., Ltd. (72) Inventor Yasuhiro Shimizu 4-1-2, Aoki-cho, Takahama-shi, Aichi Takahama City Hall

Claims (8)

[Claims] 1. A support plate has a fixing plate on a side surface thereof, while a notch for inserting the fixing plate is provided at an end of the horizontal pipe, and the fixing plate is inserted through the notch. Is inserted into the cavity of the horizontal pipe, a bolt is screwed into a screw hole provided in the fixing plate, and three points of the tip of the bolt and the contact ends at both side ends of the fixing plate are set. A connection structure between a column and a horizontal pipe, wherein the horizontal pipe is fixed to the column via the fixing plate by pressing against an inner wall of the horizontal pipe. 2. The fixing device according to claim 1, wherein the fixing plate is fixed to the column substantially horizontally, and the cut portion of the horizontal pipe is located below in the connected state. Connection structure between the column and the horizontal pipe. 3. The connection between a column and a horizontal pipe according to claim 1, wherein the bolt is screwed until a head thereof is housed in the cut portion. Construction. 4. The method according to claim 1, wherein:
A connection structure between a column and a horizontal pipe, wherein a contact end of a fixing plate abutting on an inner wall of the horizontal pipe has a curved surface or an inclined surface. 5. The method according to claim 1, wherein:
A connection structure between a column and a horizontal pipe, wherein the horizontal pipe has an inner wall having a circular or polygonal shape. 6. The method according to claim 1, wherein:
A connection structure between a pillar and a horizontal pipe, wherein a decorative cover made of pottery, plastic, metal, or the like is covered outside the pillar. 7. A column having a fixing plate on a side surface and a horizontal pipe provided with a cutout at an end for inserting the fixing plate are provided, and at least the fixing plate is arranged so that the fixing plates face each other. A pair of columns are erected, and the fixing plates of the columns are inserted into the cavities at both ends of the horizontal pipe through the notches, and the horizontal pipe is rotated to cut the notches and the fixing plates. And a bolt is screwed into the screw hole, and three points of the tip of the bolt and the contact ends on both sides of the fixing plate are pressed against the inner wall of the horizontal pipe. And fixing the horizontal pipe to the column via the fixing plate. 8. The supporting column and the horizontal pipe according to claim 7, wherein the fixing plate is fixed to the column in a substantially horizontal shape, and the horizontal pipe is rotated until the cut portion is located below. How to connect with pipe.