KR102683640B1 - Rung of cable tray - Google Patents

Abstract

The cable tray rung according to the disclosed invention includes a rung body that extends in the longitudinal direction and includes a bottom and side walls each erected upward from both ends of the bottom; and a fastener having a fastening hole formed on one side so that it can be fastened to the opposing surface of the cable tray through a fastening member while being fixed before and after the rung body in the longitudinal direction, and having fastening holes formed on both sides of the fastening hole. The fastener includes a pressing protrusion formed by deforming when both walls of the rung body outside the fixing hole are pressed, and is coupled to the fixing hole and is fixed to the rung body.
According to the present invention, when the fasteners are positioned before and after the longitudinal direction of the rung body and the both sides of the rung body outside the fixing hole formed in the fastener are pressed, the pressure protrusions formed during the deformation process are inside the fixing hole. When combined, the fastener is fixed to the rung body, which has the effect of allowing a fastener with a simple structure to be easily and quickly fixed to the rung body.

Description

Cable tray rung {RUNG OF CABLE TRAY}

The present invention relates to a cable tray rung, and more specifically, to a rung that simply combines a separately manufactured rung body and a fastener.

Generally, a cable tray consists of a side frame having a certain length and a plurality of horizontal frames (hereinafter referred to as 'rungs') connecting the side frames in the horizontal direction.

The cable tray's side frame and rung are connected and fixed using methods such as welding, screwing, and fitting.

Meanwhile, the structure that combines the side frame and rung of the cable tray is usually installed on the ceiling. When adding or repairing cables, the worker climbs on the cable tray to do the work. As the weight of the cable and the worker is added, the work load is reduced. It must be sturdy and strong enough to withstand.

If the structure of the cable tray is weak, there is a problem that safety accidents occur due to phenomena such as bending, twisting, and tilting of the side frame.

This technology related to cable tray rungs has been proposed in Korean Patent No. 1946034.

However, Patent Document 1 had a problem in that the connection structure between the rung body and the nut bracket was complicated, and the number of connection processes also increased, making it inefficient.

Korean Patent No. 1946034 (2019.01.30)

The present invention was developed in consideration of the above points, and the problem to be solved by the present invention is to easily and quickly fix the fastener by pressing and deforming both sides of the rung body while the rung body and fastener are manufactured separately. The purpose is to provide a cable tray rung that allows

A cable tray rung according to the present invention for achieving the above object includes a rung body that extends in the longitudinal direction and includes a bottom and side walls each erected upward from both ends of the bottom; and a fastener having a fastening hole formed on one side so that it can be fastened to the opposing surface of the cable tray through a fastening member while being fixed before and after the rung body in the longitudinal direction, and having fastening holes formed on both sides of the fastening hole. The fastener may be fixed to the rung body by having a pressing protrusion formed by being deformed by pressure when both walls of the rung body outside the fixing hole are pressed and coupled to the fixing hole.

The fastener may be bent at the top and both sides to be coupled to the open top and side walls of the rung body.
The cable tray rung according to the present invention extends in the longitudinal direction and includes a rung body 110 consisting of a bottom 112 and side walls 114 each erected upward from both ends of the bottom 112; And a fastening hole 1220' is formed on one side so that the rung body 110 can be fastened to the opposite surface of the cable tray 10 through a fastening member 12 while being fixed before and after the longitudinal direction. , a fastener 120 having fixing holes 1240 formed on both sides of the fastener hole 1220', wherein the fastener 120 is positioned at a certain position on the rung body 110 and is then connected to the rung. The pressure protrusion 1140 formed as a part of the rung body 110 is deformed due to external pressure applied to the body 110 is inserted into the fixing hole 1240 formed in the fastener 120 and comes into close contact with the It is fixed to the rung body 110, and the fastening hole 1220' formed in the fastener 120 is formed so that the thickness of the edge gradually becomes thinner toward the outer end, thereby allowing the fastening member 12 to be connected to the fastening hole 1220'. '), the loosening of the fastening member 12 is prevented by the elastic force formed when the edge of the fastening hole 1220' is deformed as it moves toward the cable tray 10.

According to the present invention, when the fasteners are positioned before and after the longitudinal direction of the rung body and the both sides of the rung body outside the fixing hole formed in the fastener are pressed, the pressure protrusions formed during the deformation process are inside the fixing hole. When combined, the fastener is fixed to the rung body, which has the effect of allowing a fastener with a simple structure to be easily and quickly fixed to the rung body.

Figure 1 is a perspective view showing a state in which a cable tray rung according to the present invention is fixed to an opposite surface of a cable tray.
Figure 2 is an exploded perspective view showing the structure of a cable tray rung according to the present invention.
Figure 3 is a perspective view showing a cable tray rung according to the present invention.
Figure 4 is a cross-sectional view showing a state in which the rung body and the fastener are coupled in the cable tray rung according to the present invention.
Figure 5 is a plan view and side cross-sectional view showing a state in which a fastening hole can be moved in a cable tray rung according to the present invention.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, a cable tray rung according to an embodiment of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a perspective view showing the cable tray rung according to the present invention fixed to the opposite surface of the cable tray, Figure 2 is an exploded perspective view showing the structure of the cable tray rung according to the present invention, and Figure 3 is an exploded perspective view showing the structure of the cable tray rung according to the present invention. It is a perspective view showing the cable tray rung according to the present invention, Figure 4 is a cross-sectional view showing the state of connection between the rung body and the fastener in the cable tray rung according to the present invention, and Figure 5 is a fastening hole in the cable tray rung according to the present invention. This is a plan view and side cross-sectional view showing a movable state.

Referring to FIGS. 1 to 5, the cable tray rung 100 of the present invention includes a rung body 110 located on the opposite side of the cable tray 10 in a direction perpendicular to the longitudinal direction of the cable tray 10, and , It includes fasteners 120 to which fastening members 12 are fastened so that the rung 100 can be fixed using fastening members 12 such as bolts on both sides of the cable tray 10.

As shown in FIGS. 1 to 4, the rung body 110 extends in the longitudinal direction by a length corresponding to the length of the opposing surface of the cable tray 10, and extends upward from the bottom 112 and both ends of the bottom 112. Each consists of upright side walls 114.

The side walls 114 are bent in the horizontal direction with their upper ends facing each other, thereby preventing deformation such as twisting of the rung body 110.

Furthermore, the outer side of the side wall 114 adjacent to the fixing hole 1240 formed on both sides 124 of the fastener 120 is protruded by pressure to be coupled to the fixing hole 1240 of the fastener 120. (1140) is formed after coupling the fastener 120 to the rung body 110.

That is, when the pressing protrusion 1140 presses both side walls 114 located on the same horizontal line as the plurality of fixing holes 1240 using a mold M, etc., the end of the mold M penetrates the side wall 114. It is formed to protrude into the interior of the fixing hole 1240.

In this way, the protruding pressing protrusion 1140 is formed inside the fixing hole 1240, so that the fastener 120 can be fixed to the rung body 110 without a separate fastening means.

To explain in more detail, the pressing protrusion 1140 is not a separate component from the rung body 110, but is formed while penetrating when the side wall 114 of the rung body 110 is pressed using a mold (M), etc., so that it is fastened. There is no need for a separate configuration for this, and at the same time, the structure is simplified and the bonding strength increases when fixing the fastener 120.

In addition, although not shown in the drawing, press-fitted protrusions (grooves) are formed on the side wall 114, and press-fitted grooves (protrusions) are formed on the outer surfaces of both side surfaces 124 of the fastener 120 at positions corresponding to the protrusions. When inserting 120 into the rung body 110, the protrusion is bound to the groove, making it more sturdy, and the fastener 120 can be fastened to the rung body 110 at a desired location.

As shown in FIGS. 1 to 4, the fasteners 120 are fixed before and after the rung body 110 in the longitudinal direction, and are fastened when connecting opposing cable trays 10 through the rung 100. This configuration is provided so that the member 12 is fastened.

" 형상으로 형성된다.The fastener 120 has an upper surface 122 at the top with reference to FIG. 2, and side surfaces 124 extending downward are formed on both sides of the upper surface 122, so that the cross-section is "

"It is formed into a shape.

And the fastener 120 has a fastening hole 1220, which is a spiral hole, formed on the upper surface 122 to fasten the cable tray 10 to the fastening member 12. At this time, the fastening hole 1220 is formed with a groove along the end edge adjacent to the inner surface of the horizontal part of the cable tray 10. When the fastening member 12 is fastened, the groove around the relatively thin thickness moves toward the horizontal part. As it comes along, an elastic force due to deformation acts to prevent the fastening member 12 from loosening.

Referring to FIG. 5, the fastening hole 1220' is formed in a slit shape, and the fastening part 1230' inserted therein can move in the longitudinal direction. At this time, the fastening part 1230' does not deviate from the fastening hole 1220' due to the spiral hole formed inside and the protrusions extending along the outer surface at the upper and lower ends. In this way, when the fastener 120 is fixed to both sides of the rung body 110 and fixed to the cable tray 10, if the fastening position of the fastener 120 is slightly different, the fastener 1230' is moved to the corresponding position. By moving it, the center of the fastening part 1230' can be aligned with the center of the fixing hole of the cable tray 10.

Fixing holes 1240 are formed on both sides 124 of the fastener 120 to position the pressing protrusions 1140 formed as the both side walls 114 of the rung body 110 are deformed when pressed.

The process of manufacturing the cable tray rung 100 of the present invention is described as follows.

First, the side walls 114 are bent on both sides of the rung body 110 so that the top is open and the bottom 112 and the side walls 114 are formed.

Next, the metal plate is processed to provide a fastener 120, and a fastening hole 1220 is formed on the upper surface 122 and bent with fastening holes 1240 formed on both side surfaces 124.

Next, the fasteners 120 are sequentially positioned on both sides of the rung body 110, and the top surface 122 and the side surfaces of the fasteners 120 are placed on the spaced upper part and both side walls 114 of the rung body 110. Insert so that (124) is located.

Next, when both side walls 114 of the rung body 110, which are located outside the fixing hole 1240 of the fastener 120, are pressed using a mold (M), etc., the ends of the mold (M), etc. As it penetrates the side wall 114, the pressure protrusion 1140 formed by deformation on the inner surface of the side wall 114 is coupled within the fixing hole 1240 to firmly fix the fastener 120.

Next, the fastener 120 is fixed to the other side of the rung body 110 using the above-described method.

The rung 100 manufactured in this way is positioned with the fastening hole 1220 facing downward between opposing surfaces of a pair of neighboring cable trays 10, and a fastening member 12 such as a bolt is attached to the cable tray 10. ) is spirally fastened to the fastening hole 1220 of the fastener 120 through the hole formed in ).

Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

10: Cable tray
100: rung
110: rung body
1140: Pressure protrusion
120: fastener
1220: Fastener
1240: Fixer

Claims (2)

A rung body 110 extending in the longitudinal direction and consisting of a bottom 112 and side walls 114 each erected upward from both ends of the bottom 112; and
A fastening hole 1220' is formed on one side so that the rung body 110 can be fastened to the opposite surface of the cable tray 10 through a fastening member 12 while being fixed before and after the rung body 110 in the longitudinal direction, It includes a fastener 120 having fixing holes 1240 formed on both sides of the fastening hole 1220',
The fastener 120 is a pressure protrusion 1140 formed when a part of the rung body 110 is deformed by external pressure applied to the rung body 110 after being positioned at a certain position on the rung body 110. ) is inserted into the fixing hole 1240 formed in the fastener 120 and is fixed to the rung body 110 while being in close contact,
The fastening hole 1220' formed in the fastener 120 is formed so that the thickness of the border becomes gradually thinner toward the outer end, so that the fastening member 12 is fastened to the fastening hole 1220' in the process of fastening the fastening member 12 to the fastening hole 1220'. A cable tray rung, characterized in that the loosening of the fastening member 12 is prevented by the elastic force formed when the edge of the ball 1220' is deformed as it moves toward the cable tray 10.
According to paragraph 1,
A cable tray rung, wherein the fastener is bent at the top and both sides to be coupled to the open top and side walls of the rung body.

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