KR200461370Y1 - Structure of Cabletray Rung - Google Patents

Structure of Cabletray Rung Download PDF

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Publication number
KR200461370Y1
KR200461370Y1 KR2020110003135U KR20110003135U KR200461370Y1 KR 200461370 Y1 KR200461370 Y1 KR 200461370Y1 KR 2020110003135 U KR2020110003135 U KR 2020110003135U KR 20110003135 U KR20110003135 U KR 20110003135U KR 200461370 Y1 KR200461370 Y1 KR 200461370Y1
Authority
KR
South Korea
Prior art keywords
rung
cable tray
present
screw receiving
receiving portion
Prior art date
Application number
KR2020110003135U
Other languages
Korean (ko)
Inventor
이병하
Original Assignee
(주)석영엔터프라이즈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)석영엔터프라이즈 filed Critical (주)석영엔터프라이즈
Priority to KR2020110003135U priority Critical patent/KR200461370Y1/en
Application granted granted Critical
Publication of KR200461370Y1 publication Critical patent/KR200461370Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0456—Ladders or other supports
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

The present invention relates to a rung for a cable tray, and more particularly to a rung for a cable tray formed by processing a metal plate, integrally formed with a screw receiving portion extending from one end to the other end of the rung. The rung for a cable tray according to the present invention includes two side parts extending in the longitudinal direction from both sides, two upper surface parts bent inward from the upper ends of the two side parts, and horizontally between the lower ends of the two side parts. In the cable tray rung comprising a lower surface portion to be connected, the cable tray rung is made by processing a metal plate, the contact portion extending from one end to the other end of the cable tray rung is formed in the middle of the lower surface portion, The upper portion of the contact portion is characterized in that the lower surface portion is rolled in a cylindrical shape is formed with a screw receiving portion extending from one end of the rung for the cable tray to the other end.

Description

Rung for Cable Tray {Structure of Cabletray Rung}

The present invention relates to a rung for a cable tray, and more particularly to a rung for a cable tray formed by processing a metal plate, integrally formed with a screw receiving portion extending from one end to the other end of the rung.

In general, various wires required for buildings in the construction of houses, buildings, factories, etc. are usually installed and wired on or under the ceiling or floor, and the cables can be easily distinguished from each other, and also functionally and visually aligned. Use the tray. The invention aims to provide a rung that can be assembled without an insert on the side rail of the cable tray.

Typically, cable trays, as shown in Figure 5, is formed in a ladder form by combining a rung (or crossbar, support) at regular intervals between a pair of side rails (or sideframes). .

At this time, the coupling method of the side rail and the rung is variously adopted such as welding method, screw method, fitting method, etc. Among these welding methods, it is difficult to ensure uniformity of strength due to difficulty in uniform welding and difficult to separate and assemble. It is difficult to recycle.

Therefore, in recent years, the screw (or piece) method is mainly used. In order to combine the side rail and the rung using this screw method, a screw receiving part for accommodating the screw must be formed at both ends of the rung.

To this end, the rung 100 for a cable tray according to the related art has a bracket having a screw accommodating part 140 at both ends of each tube 110 in which a metal iron plate is processed into a rectangular shape as shown in FIG. 120) was inserted and fixed. However, the rung 100 is to manufacture each metal tube 110 and the plastic bracket 120 through a separate process (bending, extrusion or injection) and then insert the bracket 120 to both ends of each tube 110 and the protrusion Since the work to compress any point of the both ends to be formed, the productivity is lowered, the product price is increased, as well as the plastic bracket had a problem that is easily broken.

Accordingly, a technique of integrally forming a screw receiving portion in the rung has been developed. As shown in FIG. 7, an extension portion 131 is formed to be connected from one side of the rectangular tube to the other side and the center of the extension portion 131 is formed. A portion of the circumference formed an open screw receiving portion 133.

However, since the cable tray rung 130 is manufactured through an extrusion process, only a relatively ductile material such as aluminum can be used, which is expensive and weak in strength.

The present invention is to solve the problems according to the prior art, the present invention, using a metal iron plate is not only strong strength and low price, but also the screw receiving portion formed on both sides to be screwed through a single cable To provide a rung for the tray.

In addition, the present invention is to provide a rung for a cable tray to form a screw receiving portion connected from one side to the other side of the rung without using a bracket.

As a means for achieving the above object of the present invention, a rung for a cable tray according to the present invention,

Rung for a cable tray comprising two side portions extending in both directions in the longitudinal direction, two upper surface portions bent inwardly from the upper ends of the two side portions, and a lower surface portion connected horizontally between the lower ends of the two side portions. To

The cable tray rung is formed by processing a metal plate, and a contact portion extending from one end of the cable tray rung to the other end is formed in the center of the lower surface portion, and the lower surface portion is rolled in a cylindrical shape on the upper portion of the cable tray for the cable tray. Characterized in that the screw receiving portion extending from one end of the rung to the other end.

The contact portion is characterized in that the lower portion is made of a neck portion of a predetermined height to be opposed to each other.

According to the rung for a cable tray of the present invention, since the screw receiving portion is formed at the same time in the process of manufacturing the rung using a metal plate, the step of assembling the bracket having the screw receiving portion can be omitted.

In addition, the rung for the cable tray of the present invention has a cylindrical screw receiving portion formed integrally from one end to the other end, thereby increasing the strength supporting the load of the cable.

In addition, the rung for the cable tray of the present invention has an effect that can use a screw of various diameters because the contact portion formed on the upper portion of the screw receiving portion has a constant elastic restoring force.

1 is a perspective view showing a preferred embodiment of the rung for a cable tray according to the present invention,
2 is a perspective view showing the rung for the cable tray shown in FIG. 1 upside down;
3 is an explanatory view showing a method of coupling the rung for the cable tray to the side rail according to the present invention,
4 is a process chart showing a process of manufacturing a rung for a cable tray according to the present invention;
5 is a perspective view showing a conventional cable tray,
6 is a perspective view showing an example of a rung for a conventional cable tray,
7 is a perspective view showing another embodiment of the rung for a conventional cable tray,

Hereinafter, a preferred embodiment of the rung for a cable tray according to the present invention with reference to the accompanying drawings in detail.

First, as shown in FIGS. 1 and 2, the rung 1 for a cable tray according to the present invention includes two side parts 12 extending in a length direction from both sides by processing a metal plate, and the two side surfaces. Two upper surface portions 16 are bent inwardly from the upper end of the portion 12 to form an opening portion 11 having a predetermined width therebetween, and horizontally between the lower ends of the two side portions 12. It consists of a lower surface portion 15 to be connected.

As shown in the drawing, the cable tray rung 1 has a contact portion 13 extending from one end of the rung 1 to the other end in the middle of the lower surface portion 15, and the contact portion 13 is formed. In the upper portion of the lower surface portion 15 is rolled in a cylindrical shape is formed a screw receiving portion 14 extending from one end to the other end of the rung (1).

The screw receiving portion 14 is formed in a circular shape having a predetermined diameter so that the screw 4 can be fastened. And a lower portion of the screw receiving portion 14 is formed with a contact portion 13 is a portion of the lower surface portion 15 forming the screw receiving portion 14 abut each other. The contact portion 13 is formed of a neck 17 having a predetermined height, and the upper and lower positions of the screw receiving portion 14 are determined according to the height of the neck 17.

As shown in FIG. 3, when the cable tray rung 1 according to the present invention is coupled to the side rails 3, the cable tray rung 1 is positioned between the two side rails 3, and the side The ladder tray cable tray can be assembled by aligning the thread receiving portion 14 formed at both ends of the cable tray rung 1 with the through hole 14 'formed in the rail 3, and then screwing the screw 4 through. Can be.

As such, the rung 1 for the cable tray of the present invention forms a screw accommodating portion 14 in the process of manufacturing the rung 1 by processing a metal plate, and thus a rung for producing a bracket on which the screw accommodating portion is formed. The step of assembling the brackets at both ends can be omitted.

In addition, the rung 1 for the cable tray of the present invention is greatly strengthened to support the load of the cable because the cylindrical screw receiving portion 14 is bent integrally from one end to the other end.

In addition, the rung 1 for the cable tray of the present invention, since the contact portion 13 having elastic restoring force is formed in the lower portion of the screw receiving portion 14, it is possible to use screws of various diameters.

Subsequently, referring to FIG. 4, the rung 1 for the cable tray of the present invention may be made through the following process.

First, the center of the metal plate of a predetermined size is bent downward to roll forming the U-shaped screw receiving portion 14, and then the top (or bottom) of the U-shaped screw receiving portion 14 Is bent inward to form a neck 17 of a predetermined height to form a circular screw receiving portion 14.

Subsequently, both sides of the metal plate are bent to form a side portion 12, and the lower end of the side portion 12 is bent again to form an upper surface portion 16 having a predetermined length. Then, the lower surface portion 15 is horizontally bent to make each tube of a square shape, and then cut to a certain length to produce the rung 1 for the cable tray of the present invention.

As such, the rung 1 for the cable tray of the present invention is made through one process of processing a metal plate, so that mass production using an automated device is possible.

In the above description of the technical idea of the present invention with reference to the preferred embodiments of the present invention in detail, but these examples and examples shown in the drawings are intended to help the understanding of the present invention is not limited to the scope of the present invention is not limited to this Experts will be able to make various embodiments using these embodiments, so these modifications are within the scope of the present invention as long as they fall within the utility model registration claims described below.

1: rung for cable tray
11: opening
12: side part
13: contact
14: screw receptacle
15: bottom part
16: upper surface
17: the neck

Claims (2)

A rung for a cable tray comprising two side portions extending in both directions in the longitudinal direction, two upper surface portions bent inward from the upper ends of the two side portions, and a lower surface portion connected horizontally between the lower ends of the two side portions. To
The cable tray rung is formed by processing a metal plate, and a contact portion 13 extending from one end of the cable tray rung to the other end is formed in the center of the lower surface portion, and the lower portion of the contact portion is rolled in a cylindrical shape. A rung for a cable tray, characterized in that the screw receiving portion 14 is formed extending from one end of the rung for the cable tray to the other end. The method of claim 1,
The contact portion is a rung for a cable tray, characterized in that made of a neck portion of a predetermined height that a portion of the lower surface portion abut each other.
KR2020110003135U 2011-04-13 2011-04-13 Structure of Cabletray Rung KR200461370Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020110003135U KR200461370Y1 (en) 2011-04-13 2011-04-13 Structure of Cabletray Rung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020110003135U KR200461370Y1 (en) 2011-04-13 2011-04-13 Structure of Cabletray Rung

Publications (1)

Publication Number Publication Date
KR200461370Y1 true KR200461370Y1 (en) 2012-07-06

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KR2020110003135U KR200461370Y1 (en) 2011-04-13 2011-04-13 Structure of Cabletray Rung

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101946030B1 (en) 2018-03-08 2019-04-17 주원철 Rung for cable tray
KR102003311B1 (en) * 2019-04-17 2019-07-24 강정숙 Prefabricated cable tray
KR102018164B1 (en) * 2018-05-08 2019-09-04 주식회사 아시아전관 Cable Trays
KR20220045859A (en) 2020-10-06 2022-04-13 알앤에스 (주) Method for manufacturing rung for cable tray and rung manufactured according to thereof
KR102517201B1 (en) * 2022-10-21 2023-04-03 신우정공 주식회사 Prefab tray for installing wires

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5174793U (en) 1974-12-06 1976-06-11
KR200300961Y1 (en) 2002-10-09 2003-01-15 금아금속공업(주) rung for cable tray
JP2003102114A (en) 2001-09-25 2003-04-04 Daimei Kk Bolt cover and manufacturing method therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5174793U (en) 1974-12-06 1976-06-11
JP2003102114A (en) 2001-09-25 2003-04-04 Daimei Kk Bolt cover and manufacturing method therefor
KR200300961Y1 (en) 2002-10-09 2003-01-15 금아금속공업(주) rung for cable tray

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101946030B1 (en) 2018-03-08 2019-04-17 주원철 Rung for cable tray
KR102018164B1 (en) * 2018-05-08 2019-09-04 주식회사 아시아전관 Cable Trays
KR102003311B1 (en) * 2019-04-17 2019-07-24 강정숙 Prefabricated cable tray
KR20220045859A (en) 2020-10-06 2022-04-13 알앤에스 (주) Method for manufacturing rung for cable tray and rung manufactured according to thereof
KR102463109B1 (en) * 2020-10-06 2022-11-03 알앤에스 (주) Method for manufacturing rung for cable tray and rung manufactured according to thereof
KR102517201B1 (en) * 2022-10-21 2023-04-03 신우정공 주식회사 Prefab tray for installing wires

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