KR200482622Y1 - Supporting structure having bracket and channel - Google Patents

Abstract

The present invention relates to a support stand, wherein a bracket including a flange and a flange extending from the flange, and a channel connecting portion of the bracket are inserted into the channel when the flange is coupled with the channel, and the channel connecting portion and the channel are connected with bolts The bolt is inserted into the bolt hole from the outside to the inside thereof, and the head of the bolt is brought into close contact with the channel, and the bolt is screwed to the screw thread of the bolt hole formed in the channel connecting portion.

Description

{SUPPORTING STRUCTURE HAVING BRACKET AND CHANNEL}

The present invention relates to a bracket and bracket, and more particularly to a support bracket for supporting a pipe or a rack.

Piping support stands are used to install piping, etc., which are spaced a certain distance from the ceiling, in performing various piping works for construction of buildings and machinery facilities.

Generally, in the conventional pipe construction method, a general section steel is cut by oxygen cutting or a speed cutter at a work site and then used as a pipe support.

However, such a construction method has a problem that the work time is increased and the assemblability is lowered because the section steel is brought into the field and the green film is subjected to a multi-step process from the painting to the completion of the insulation work.

In addition, the conventional construction method has a problem of causing a rise in cost due to the fear of work avoidance and fire, delays in construction, material consumption on the site, and waste of tools due to concern of electric shock accident and difficulty in construction process as well as environmental pollution have.

In order to overcome this problem, a built-up type bracket or bracket has been developed and a prefabricated construction method of combining a bracket and a channel with a bolt and a nut has been used.

However, even in the case of the conventional prefabricated construction method, there is a problem that the fastening force between the bracket and the channel is low, so that the piping installed on the supporting stand is released or the assembly is released when a small impact or an earthquake occurs.

Further, in the case of the conventional prefabricated pipe supporting stand, it is possible to adjust the height to some extent, but it is difficult to adjust the height uniformly and properly so that the operator has difficulty in adjusting the height of the pipe supporting stand to a desired height.

In the case of the conventional prefabricated pipe supporting stand, at least two vertical channels are installed to fix the horizontal channels. Since the height of at least two vertical channels is horizontally aligned, it is difficult to construct the horizontal channels. There is a problem that it tilts to one side.

Also, conventionally, when the bracket and the channel are coupled, the bracket and the channel are fastened to each other through bolts passing through the bracket. However, in such a conventional fastening method, since the bolt has a long bolt, the bolt's axial force is reduced, and the tightening torque of the bolt is reduced, so that the bolt can not bear the load sufficiently.

In order to solve the problem of lowering the fastening force and the problem of lowering the workability due to the ease of construction and the work for matching the hole intervals in the construction of the assembly type frame for fastening with the conventional bolt and nut, This allows the bracket to be joined with the bolt without the nut.

In addition, according to one embodiment of the present invention, the channel coupling portion of the bracket is divided into a first channel coupling portion and a second channel coupling portion, the first channel coupling portion is of 'A' shape, the second channel coupling portion is' So that the bracket can be made easier to manufacture.

In addition, conventionally, there is a certain limit in accurately and delicately making the height of the channel to be joined when the channel is installed. However, according to one embodiment of the present invention, the bolt holes formed in the channel- In order to solve such a problem.

Further, in the related art, there has been a problem that when the bracket is fastened to the channel, the bolt is connected to the bracket in a manner to penetrate the channel coupling portion and easily slipped to the load. However, according to one embodiment of the present invention, The present invention solves this problem by connecting only the face portion of the channel which is in contact with the channel fitting portion of the bracket to each other to fasten the body with the bolt having a short length.

In addition, in the case of a horizontal channel constituting a conventional supporting stand, there is a problem that the deformation or sagging occurs in the direction of the load with time due to the load. However, according to one embodiment of the present invention, a longitudinal gap is formed on one side of the horizontal channel and at least one reinforcing bolt is inserted in the gap to solve this problem.

According to an aspect of the present invention, there is provided a bracket including a bracket including a flange and a flange extending from the flange, and a channel coupled with the flange of the bracket, Wherein the channel connecting portion of the bracket is inserted into the channel, the channel connecting portion of the bracket and the channel are coupled by bolts, the bolt is inserted inward from the outside, and the bolt head The body of the bolt is screwed to the screw thread of the bolt hole formed in the channel connecting portion.

At least one first bolt hole may be formed on a first surface of the channel connecting portion, and at least one second bolt hole may be formed on a second surface of the channel connecting portion facing the first surface.

At least one first hole is formed in the first surface of the channel, and the bolt is inserted into the first hole and the first bolt hole from the outside or the bolt is inserted into the first hole and the second hole. And can be inserted from the outside through the second bolt hole.

The first hole may be a long hole formed by a long axis and a short axis.

Also, the length of the diameter of the bolt body is shorter than the length of the minor axis of the elongated hole, the length of the diameter of the bolt head is longer than the length of the minor axis of the elongated hole, and the bolt body is inserted into the first bolt hole or the second bolt hole. When screwed into the hole, the bolt head can be brought into close contact with the channel.

The length of the bolt body may be equal to or greater than the sum of the thickness of the channel and the length of the bolt hole.

And the channel includes a vertical channel coupled with the channel connection portion of the bracket and a horizontal channel connected to the vertical channel, the horizontal channel having an open channel opening outwardly through a gap formed in the longitudinal direction, .

At least one reinforcing bolt is fitted in the gap of the horizontal channel from the inside to the outside of the horizontal channel, and the reinforcing bolt can be fixed to the gap through the washer and the nut.

In addition, the cutting direction of the horizontal direction of the horizontal channel is rectangular, and the length of the side parallel to the load direction in the rectangular shape may be longer than the length of the adjacent side.

The first bolt holes of the first surface and the second bolt holes of the second surface may be formed at positions offset from each other.

The channel connecting portion includes a first channel connecting portion extending in a vertical direction from the lower surface of the flange and a second channel connecting portion extending from the lower surface of the flange in the vertical direction to a second And a channel coupling portion.

Unlike the existing design, this design can be used with bolts and nuts without bolts and nuts, and can be fastened with bolts to strengthen the fastening force and to facilitate construction. have.

In addition, according to the embodiment of the present invention, the channel connecting portion of the bracket is divided into the first channel connecting portion and the second channel connecting portion, thereby making it easier to manufacture the bracket.

Also, according to the embodiment of the present invention, the bolt holes formed in the channel connecting portion of the bracket are formed at positions where the bolt holes are staggered from each other, so that the operator can more precisely control the height.

According to an embodiment of the present invention, when the bracket is fastened to the channel, the bolt does not engage with the channel in such a manner that the bolt penetrates the entire vertical channel portion of the bracket, Only the cross section of the overlapping channel can be bolted to join the bracket with the channel using bolts shorter than the length of the existing bolt body. Accordingly, the reduction effect of the bolt axial force due to the bolt body length can be reduced, the tightening torque of the bolt can be increased, the load can be more easily controlled, and slippage of the channel due to the load can be prevented.

According to one embodiment of the present invention, since the cut surface of the horizontal channel forming the support platform is formed in a rectangular shape and the thickness of the optimal steel plate is provided, it is possible to prevent the channel from being sagged or deformed over time due to the load can do.

1 is a perspective view showing an overall shape of a bracket according to an embodiment of the present invention.
2 is a front view of a bracket according to an embodiment of the present invention.
3 is a rear view of a bracket according to an embodiment of the present invention.
4 is a view showing the left side of the bracket according to one embodiment of the present invention.
5 is a right side view of a bracket according to an embodiment of the present invention.
6 is a plan view of a bracket according to an embodiment of the present invention.
7 is a bottom view of a bracket according to an embodiment of the present invention.
8 is a perspective view showing a bottom surface of a bracket according to an embodiment of the present invention.
FIG. 9 is a view showing a use state of the bracket according to an embodiment of the present invention.
10 is a view showing a part of a channel connecting portion of a bracket according to an embodiment of the present invention.
11 is a view showing a conventional bracket-to-channel coupling structure.
12 is a view showing a coupling structure of a bracket and a channel according to an embodiment of the present invention.
FIG. 13 is a view and a graph showing deflection effects according to a cross-sectional shape of a channel according to an embodiment of the present invention.
FIG. 14 is a view showing a deformation effect according to the thickness of a steel pipe according to an embodiment of the present invention.

Technical aspects of the bracket according to the present invention, including its technical structure, will be clearly understood from the following detailed description of preferred embodiments of the present invention with reference to the drawings.

The advantages and features of the present invention, and the techniques for achieving the same will be apparent from the following detailed description, taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various forms. The present embodiments are provided so that this disclosure is complete and complete, and will fully convey the scope of the invention to those skilled in the art to which the present invention belongs. Like reference numerals refer to like elements throughout the specification.

For simplicity and clarity of illustration, the drawings show a general configuration and details of known features and techniques may be omitted so as to avoid unnecessarily obscuring the discussion of the described embodiments of the present invention. Additionally, elements of the drawings are not necessarily drawn to scale. For example, to facilitate understanding of embodiments of the present invention, the dimensions of some of the components of the drawings may be exaggerated relative to other components. Like reference numerals in different drawings denote like elements, and like reference numbers may indicate similar elements, although not necessarily.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings, wherein the same or corresponding components are denoted by the same reference numerals, and a duplicate description thereof will be omitted.

In the following description of the present invention, a detailed description of related arts will be omitted if it is determined that the gist of the present invention may be blurred.

FIG. 2 is a front view of a bracket according to an embodiment of the present invention, and FIG. 3 is a perspective view of a bracket according to an embodiment of the present invention. 4 is a left side view of the bracket according to an embodiment of the present invention, FIG. 5 is a right side view of the bracket according to an embodiment of the present invention, and FIG. 6 is a cross- FIG. 7 is a bottom view of a bracket according to an embodiment of the present invention, and FIG. 8 is a side view of a bottom surface of a bracket according to an embodiment of the present invention. FIG. 9 is a view showing a use state of the bracket according to an embodiment of the present invention, FIG. 10 is a view showing a part of a channel connector of a bracket according to an embodiment of the present invention FIG. 11 is a view showing a conventional bracket-to-channel coupling structure, FIG. 12 is a view showing a coupling structure of a bracket and a channel according to an embodiment of the present invention, and FIG. 13 is a cross- FIG. 14 is a view showing a deformation effect according to the thickness of a steel pipe according to an embodiment of the present invention. FIG.

1 to 7, the bracket 10 may include a flange 100, and a channel connecting portion 120 extending from the flange 100.

The flange 100 may perform a function of fixing the bracket 10 to a ceiling, a wall surface, or the like where the support bracket 10 is installed.

For this fixing function, a hole (HOLE) 101 may be formed on both sides of the flange 100 to fix the upper part of the flange to a ceiling, a wall surface or the like using bolts, screws or nails. Here, the hole may be a long hole 101 elongated in one direction.

The channel connecting portion 120 may extend vertically from the lower surface of the flange 100. In one example, the channel connecting portion 120 may extend in the vertical direction from the lower surface of the flange 100. However, this is only one embodiment of the present invention, and according to another embodiment, the flange 100 and the channel coupling portion 120 may be realized in a form not perpendicular to each other.

Meanwhile, when the bracket 10 and the channel 200 are coupled, the channel coupling unit 120 may be inserted into the channel 200 and coupled to the channel 200.

At least one first bolt hole 131 is formed on the first surface of the channel connecting part 120 and at least one second bolt hole 131 is formed on the second surface of the channel connecting part 120 facing the first surface. (132) may be formed. Here, the first bolt hole 131 of the first surface and the second bolt hole 132 of the second surface may be formed at positions offset from each other.

More specifically, the channel connecting portion 120 may include a first channel connecting portion 121 and a second channel connecting portion 122. The first channel engaging portion 121 may include the first surface and a third surface extending from the first surface. The second channel joining portion 122 may have the second face and the fourth face extended from the second face perpendicular to each other.

7, the first channel engaging portion 121 extends in the vertical direction from the lower surface of the flange 100 and the second channel engaging portion 122 extends from the flange 100 Quot; b " shape in a vertical direction from the lower surface of the base plate.

The first channel connecting portion 121 extends in a vertical direction from the lower surface of the flange 100 and is connected to the second channel connecting portion 122. The first channel connecting portion 121 is formed in a substantially U- Is formed to extend in a "? 'Shape in a vertical direction from the lower surface of the flange 100, thereby making it easier to manufacture the channel-coupled portion of the bracket. 4, 5, 7 and 8, the first channel connecting portion 121 and the second channel connecting portion 122 may be spaced apart from each other by a predetermined distance. More specifically, the first surface of the first channel engaging portion 121 and the fourth surface of the second channel engaging portion 122 are spaced apart from each other by a predetermined distance, and the third surface of the first channel engaging portion 121 The second surface of the second channel joining part 122 may be spaced a predetermined distance apart.

The structure of the channel connecting part 120, more specifically, the channel connecting part 120 of the bracket is divided into the first channel connecting part 121 and the second channel connecting part 122, .

The first bolt hole 131 may be formed on the first surface of the channel connecting portion 120 and the second bolt hole 132 may be formed on the second surface.

2, at least one first bolt hole 131 may be formed on the first surface of the first channel engaging part 121. In addition, as shown in FIG.

Referring to FIG. 3, at least one second bolt hole 132 may be formed on the second surface of the second channel connector 122.

In this case, the first bolt hole 131 of the first surface and the second bolt hole 132 of the second surface may be formed at positions offset from each other. More specifically, the second bolt hole 132 is not formed at the position of the second surface of the first surface facing the first bolt hole 131, and the second bolt hole 132 of the second surface is opposed to the The first bolt hole 131 may not be formed at the position of the first surface.

If the first bolt hole 131 is composed of three bolt holes of the first upper bolt hole, the first intermediate bolt hole and the first lower bolt hole, the second bolt hole 132 is formed of the second upper bolt hole, In the case of the two bolt holes of the lower bolt hole, the position of the first face facing the second upper bolt hole may be between the first upper bolt hole and the first interrupt bolt hole. In this case, the position of the second surface facing the first break bolt hole may be between the second upper bolt hole and the second lower bolt hole.

That is, a line segment corresponding to the first bolt hole 131 and the second bolt hole 132 may be zigzag.

In addition, the first bolt hole 131 and the second bolt hole 132 may be implemented in the same number or may be implemented in different numbers. For example, as shown in FIGS. 2 to 3, the first bolt hole 131 may be implemented in an odd number, and the second bolt hole 132 may be implemented in an even number.

According to one embodiment of the present invention, the bolt holes formed in the channel connecting portion of the bracket are formed at positions where the bolts are staggered from each other, so that the operator can more precisely control the height.

Meanwhile, the bracket 10 described above can be combined with the channel 200 to form a supporting table for supporting a pipe or the like. This will be described in more detail with reference to Figs. 9 to 10.

FIGS. 9 to 10 are views showing an example of combining a bracket and a channel according to an embodiment of the present invention. 9, when the bracket 10 and the channel 200 are coupled, the channel connecting portion 120 of the bracket 10 can be inserted into the channel 200. Further, the bracket 10 and the channel 200 can be fixed to each other through the bolts 300.

Here, the bolt 300 is composed of a bolt head 301 and a bolt body 302, and is inserted inward from the outside to connect the bracket 10 and the channel 200 to each other.

More specifically, referring to FIG. 10, a screw thread 133 may be formed in the bolt hole 130. The screw thread 133 of the bolt hole 130 can be screwed together with the screw thread formed on the bolt body 302. The height d of the screw thread 133 in the bolt hole 130 may be the same as the thickness d of the channel connecting portion 120.

Meanwhile, at least one hole (HOLE) 201 through which the bolt 300 passes may be formed in the channel 200. Here, the hole may be a long hole formed in one direction. The length r of the minor axis of the hole 201 may be larger than the diameter of the bolt body 302 and smaller than the diameter of the bolt head 301. The vertical length of the bolt body 302 perpendicular to the diameter of the bolt body 302 may be equal to or greater than the sum of the thickness of the channel 200 and the length of the bolt hole 201.

In this case, the channel connecting portion 120 of the bracket and the channel 200 are coupled by the bolts 300, the bolts 300 are inserted inward from the outside, and the head 301 of the bolts is inserted into the channel 200 so that the body 302 of the bolt can be screwed to the threaded line 133 of the bolt hole formed inside the channel. More specifically, the body 302 of the bolt inserted from the outside into the inside can be screwed with the thread 133 of the bolt hole 130 through the hole 201 formed in the channel 200. The head 301 of the bolt inserted from the outside to the inside does not penetrate the hole 201 formed in the channel 200 and the bolt body 302 and the screw 133 are screwed to each other, It can be closely contacted.

At least one hole 201 formed on the first surface of the channel 200 may be coupled to the first bolt hole 131 or the second bolt hole 132 through the bolt 300.

That is, the operator draws the channel connecting portion 120 of the bracket 10 into the inside of the channel 200. In this case, the connecting direction may be changed depending on the working environment. For example, the operator may cause the channeling portion 120 to be drawn into the interior of the channel 200 so that the first channeling portion 121 abuts the first surface 200 of the channel, or the second channeling portion 122 can be drawn into the interior of the channel 200 so that the channel engaging portion 120 abuts the first surface 200 of the channel. The bolt 300 is inserted from the outside into the inside through the first hole 201 and the first bolt hole 131 or inserted into the inside from the outside through the first hole 201 and the second bolt hole 132 Can be inserted.

According to one embodiment of the present invention, the operator can adjust the height direction more precisely and precisely by adjusting the joining direction of the channel connector 120 and the channel 200. [

In the above-described example, the hole 201 is formed only on one side of the channel 200. However, according to an embodiment of the present invention, at least one hole May be formed.

At least one hole 201 is formed on a first surface of the channel 200 and at least one hole 201 is formed on a second surface of the channel 200 facing the first surface of the channel 200. [ (HOLE) may be formed. Here, the holes formed on the first surface of the channel 200 and the holes formed on the second surface of the channel 200 may be formed at positions facing each other. In this case, the operator can adjust the height of the channel 200 by adjusting only the joining position of the channel 200 coupled to the channel joining unit 120 (for example, by moving the channel 200 in an upward direction or a downward direction) Delicate and accurate.

According to the above-described coupling structure of the bracket 10 and the channel 200, it is possible to provide a strong coupling force against the load of the conventional coupling structure. This will be described in detail with reference to FIGS. 11 to 12. FIG.

11 is a view showing a conventional bracket and a method of coupling the channel. 12 is a view showing a coupling structure of a bracket and a channel according to an embodiment of the present invention. 11 to 12, F bolt is applied to the channel fitting portion 120 and the channel 200 before being slid by the bolt 300 (force of tightening), Fs is the static friction force, Fk is the kinetic frictional force, F1 is the load, F2 is a force applied to the channel connecting portion 120 and the channel 200 during the slip by the load or the like.

Referring to FIG. 11, a conventional method in which the bolts 300 pass through the vertical channel connecting portion 120 and the channel 200 of the bracket to couple the two is used. 11, the bracket channel fitting portion 120 and the channel 200 are provided with the bolt 300 with an applied force (F bolt), a static frictional force (Fs) before the slip occurs in the conventional engaging method, And the force F1 applied to the channel connecting portion 120 and the channel 200 can be applied.

In such a conventional coupling method, a bolt having a long body length is used to connect the bracket 10 and the channel 200. In this case, since the length of the bolt body is long, the axial force of the bolt and the tightening torque of the bolt * Nominal diameter * Bolt axial force) is reduced, and as shown in the lower part of FIG. 11, the load can not be sufficiently sustained, so that the channel slips or the bolt warps.

12, only one end face of the bracket channel fitting part 120 and one end face of the channel 200 overlapping the channel face are coupled with the bolts 300, so that the body length shorter than the conventional bolt body length The effect of reducing the bolt axial force due to the body length of the bolt can be reduced. Thus, the tightening torque of the bolt can be increased to more easily control the load, and slippage of the channel due to the load can be prevented.

Meanwhile, the channel 200 according to an embodiment of the present invention may include a vertical channel and a horizontal channel. Here, the vertical channel is a portion of the bracket coupled to the channel coupling portion 120 through the bolt 300, and in the above-described examples, the channel may mean a vertical channel. Also, the horizontal channel may be a channel formed vertically connected to the vertical channel. If a supporting table composed of the bracket 10 and the channel 200 is installed on the ceiling, piping or the like may be mounted on the horizontal channel.

Here, the horizontal channel may preferably be an open channel open to the outside through a gap formed in the longitudinal direction on one side. However, the present invention is not limited to this, and the horizontal channel may be a closed channel in which no gaps are formed on a plurality of surfaces.

On the other hand, at least one reinforcing bolt can be fitted in the gap of the horizontal channel from the inside to the outside of the horizontal channel. More specifically, the horizontal channel may be hollow in its longitudinal direction, and the reinforcing bolt may be fitted from the inside toward the outside. And, the reinforcing bolt can be fixed to the gap through the washer and the nut.

According to one embodiment of the present invention, it is possible to reduce the problem of sagging or deformation in the direction of load due to gravity or the like acting on the pipe in the horizontal channel.

On the other hand, the load direction cut surface of the horizontal channel is rectangular, and the length of the side horizontal to the load direction in the rectangle may be longer than the length of the adjacent side. This will be described in more detail with reference to FIG.

13 is a diagram and a graph showing a sagging effect according to a cross-sectional shape of a channel when a load acts in a vertical direction. 13, when the horizontal direction in the load direction is longer than the adjacent side length (width * length: 40 * 60) and the horizontal direction is shorter than the adjacent side length (width * length: 60 * 40) In comparison, it can be seen that the maximum squeezing is 2.81 mm and 5.54, respectively, and that the length of the side parallel to the loading direction is longer than the length of the adjacent side.

In addition, when a steel plate of the same length is compared with a case of a rectangular (40 * 60) case and a case of a square (50 * 50), the maximum deflection is 2.81 in a rectangular case, the maximum deflection is 3.78 in a square case, It can be seen that there is a better anti-sagging effect.

Fig. 14 shows the degree of bending or deformation of the channel according to the thickness of the steel sheet when the cross section of the channel is a rectangular structure according to an embodiment of the present invention. Referring to FIG. 14, it can be seen that as the thickness of the steel sheet increases, the degree of bending or deformation decreases.

In the description and claims, terms such as "first", "second", "third" and "fourth" are used for distinguishing between similar components, if any, It is used to describe a particular sequence or occurrence sequence. It will be understood that the terminology used is such that the embodiment of the present invention described herein is compatible under the right circumstances, for example, so that it can operate in a sequence other than those shown or described herein. Likewise, where the method is described as including a series of steps, the order of such steps presented herein is not necessarily the order in which such steps may be performed, any of the described steps may be omitted and / Any other step not described will be additive to the method.

Also, the terms "left", "right", "front", "back", "upper", "bottom", "above", "under", etc., It is not intended to describe a constant relative position. It will be understood that the terminology used is intended to be interchangeable in appropriate circumstances to enable an embodiment of the present invention described herein to operate in a different direction than, for example, shown or described herein. The term "connected" as used herein is defined as being directly or indirectly connected in an electrically or non-electrical manner. Objects described herein as "adjacent" may be in physical contact with one another, in close proximity to one another, or in the same general range or region as are appropriate for the context in which the phrase is used. The presence of the phrase "in one embodiment" herein means the same embodiment, although not necessarily.

It is also to be understood that the phrase " connected, " " connected, " " concluded, " " concluded, " " coupled, " Or indirectly through other components.

Further, the suffix "module" and "part" for components used in the present specification are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is to be understood that the terms 'comprise', and / or 'comprising' as used herein may be used to refer to the presence or absence of one or more other components, steps, operations, and / Or additions.

The present invention has been described with reference to the preferred embodiments. It is to be understood that all embodiments and conditional statements disclosed herein are intended to assist the reader in understanding the principles and concepts of the present invention by those of ordinary skill in the art, It will be understood that the invention may be embodied in various other forms without departing from the spirit or essential characteristics thereof.

Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is set forth in the appended claims rather than the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

10: Bracket 100: Flange
101: elongated hole 120:
121: first channel connecting portion 122: second channel connecting portion
130: bolt hole part 131: first bolt hole
132: second bolt hole 133: screw thread
200: Channel 201: The channel's slot

Claims (11)

A bracket including a flange and a channel engagement portion extending from the flange; And
And a channel coupled to the channel coupling portion of the bracket,
When the channel connection portion of the bracket is coupled with the channel, the channel connection portion of the bracket is inserted into the channel,
Wherein the bolts are inserted into the channel from the outside and the head of the bolt is fitted into the channel so that the bolt is in close contact with the channel and the body of the bolt is formed in the channel- And is screwed to the screw thread of the bolt hole. The method according to claim 1,
Wherein at least one first bolt hole is formed on a first surface of the channel connecting portion and at least one second bolt hole is formed on a second surface of the channel connecting portion facing the first surface. . 3. The method of claim 2,
At least one first hole is formed in the first surface of the channel,
The bolt is inserted from the outside into the inside through the first hole and the first bolt hole, or alternatively,
And the bolt is inserted from the outside to the inside through the first hole and the second bolt hole. The method of claim 3,
Wherein the first hole is a long hole formed in a long axis and a short axis. 5. The method of claim 4,
The length of the diameter of the bolt body is shorter than the length of the short axis of the long hole,
The length of the diameter of the bolt head is longer than the length of the minor axis of the long hole,
Wherein the bolt head is in close contact with the channel when the bolt body is screwed into the first bolt hole or the second bolt hole. The method of claim 3,
And the length of the bolt body is equal to or greater than the sum of the thickness of the channel and the length of the bolt hole. The method according to claim 1,
In the channel,
A vertical channel coupled to the channel connection portion of the bracket and a horizontal channel connected to the vertical channel,
Wherein the horizontal channel is an open channel open to the outside through a gap formed in a longitudinal direction on one surface. 8. The method of claim 7,
At least one reinforcing bolt is fitted in the gap of the horizontal channel from the inside to the outside of the horizontal channel,
Wherein the reinforcing bolt is fixed to the gap through a washer and a nut. 8. The method of claim 7,
Wherein the horizontal cross section of the horizontal channel is rectangular and the length of the side of the rectangle in the direction of the load is longer than the length of the adjacent side. 3. The method of claim 2,
Wherein the first bolt hole of the first surface and the second bolt hole of the second surface are formed at positions offset from each other. The method according to claim 1,
The channel-
A first channel coupling portion extending in a '?' Shape in a vertical direction from a lower surface of the flange; And
And a second channel connecting portion extending in a '?' Shape in a vertical direction from a lower surface of the flange.

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