JP3022621U - Cable support - Google Patents

Abstract

(57) [Abstract] [Problem] Since the surface on which the cable is placed is flat,
The cable comes into contact with the corners of the mounting surface and is damaged, and because a cable insulator and a saucer are used to insulate the cable from the cable support bracket, the number of parts increases and the cost increases. It also leads to problems such as inconvenience in transportation and handling during work. SOLUTION: In a cable support tool that supports a cable A, an outer peripheral surface of a tubular pipe 2 having an attachment portion 4 at one end is covered with an insulating heat-shrinkable tube 3.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a cable support, and more particularly to a cable support that supports an electric cable or the like installed in, for example, a cave or another place.

[0002]

[Prior art]

 Usually, when laying a cable, a plurality of L-shaped steel columns and the like are erected inside the body, and cable supporting metal fittings are attached to the columns in multiple stages, and the metal cables are supported by the metal fittings. Then, conventionally, various cable support fittings for supporting this cable have been proposed.

For example, a cable support fitting disclosed in Japanese Utility Model Laid-Open No. 63-194523 is made of FRP, and has a fixing ear on the surface of one end of a rectangular pipe having a cross section, and the fixing ear in the thickness direction of the ear. The protrusions are installed so that they are aligned in the horizontal direction of the column, and the attached piece of the column is inserted between the opposing fixing ears, and fixed to the column with bolts.

[0004] In addition, cable support fittings have also been implemented in which a pillow insulator is placed on the upper surface of a plate to receive a cable, or a round pipe or a square pipe is provided with a tray to receive the cable.

[0005]

[Problems to be solved by the device]

 The above-described conventional cable support fitting has a defect that the surface on which the cable is placed is flat, and thus the cable comes into contact with a corner of the placement surface and is damaged. Furthermore, since an insulator and a saucer are used to insulate the cable from the cable support metal fittings, the number of parts is increased, leading to an increase in cost, and it is inconvenient to transport and handle during work.

The present invention has been made in order to solve the above-mentioned problems, and reliably insulates the cable, and strengthens the insulation to prevent the generation of an eddy current. It is an object of the present invention to provide a low-cost cable supporting tool that can prevent temperature rise, reduce power loss, and prevent cable damage.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a cable support for supporting a cable, wherein the outer peripheral surface of a tubular pipe provided with a mounting portion at one end is formed by using a heat-shrinkable tube having an insulating property. Since it is covered, it is possible to reduce the generation of eddy current between the cable and the cable support, and since the cable support is tubular, it does not damage the cable. Further, since the pipe can be easily coated, the coating work can be performed in a short time. Since the tube is formed by using ethylene-propylene rubber as a main component, it is possible to form a cable support having excellent heat resistance and weather resistance as well as high insulation.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a schematic front view showing a usage example of the cable support of the present embodiment, FIG. 2 is a schematic perspective view of a portion of FIG. 1, FIG. 3 is a plan view of the cable support, and FIG. FIG. 5 is a side view showing the attachment part, FIG. 5 is a cross-sectional view of the cable support, and FIG. 6 is a partial cross-sectional view showing one end of the cable support.

In the figure, reference numeral 1 is a cable supporting tool for supporting a cable A, which is formed by covering a cylindrical pipe 2 having an appropriate length such as a cylindrical shape with an insulating heat-shrinkable tube 3. Has been. Then, at one end of the pipe 2, a mounting portion 4 for mounting the cable supporting tool 1 on the column 10 is provided.

The pipe 2 is formed by cutting a steel pipe such as a galvanized steel pipe, a carbon steel pipe, or a metal steel pipe depending on the application into an appropriate length, and the tube 3 has electrical characteristics, weather resistance, and heat resistance. An insulating coating material such as an excellent heat-shrinkable tube is used, and for example, a tube formed by using ethylene-propylene rubber as a main component may be used. The material of the tube 3 is appropriately selected from various materials depending on the implementation.

When the pipe 2 is covered with the tube 3, the pipe 2 is inserted into the tube 3 formed to have a diameter larger than that of the pipe 2, and the tube 3 is appropriately arranged, for example, an infrared heater or a torch lamp. And the like to shrink the tube 3 to cover the pipe 2. As described above, since the heat-shrinkable tube 3 is used for coating, the coating of the pipe 2 is easy even when a pipe having a complicated shape is used, and when the cable A is supported, the eddy current is prevented. It is less efficient and efficient. Furthermore, since the cylindrical pipe 2 having no corners is used in this embodiment, the coating can be performed evenly, and the cable A is received by the cylindrical surface. , Prevent damage.

Further, as shown in FIG. 6, at the end of the pipe 2 where the mounting portion 4 is not provided, the tube 3 is folded back and covered so that the cut surface of the pipe 2 is not exposed. Since the cut surface of the pipe 2 is not exposed, the worker's safety can be measured.

The mounting portion 4 has cutout grooves 5 and 6 formed at a diameter position of one end of the pipe 2, and fitting recesses 5a, 5b, 6a and 6b are formed on the inner side surfaces of the cutout grooves 5 and 6, respectively. In addition, the pair of rectangular connecting plates 7a and 7b holding the attached piece 10a of the support column 10 are opposed to each other so that the fitting portions 5a and 5b of the cutout groove 5 and the fitting portions 6a and 6b of the cutout groove 6 are joined. They are formed by straddling each other and fixing each other. Further, by forming the open end portions 15 and 16 of the cutout grooves 5 and 6 in a tapered shape, it becomes easy to fit the attached piece 10a of the column 10 into the cutout grooves 5 and 6. A bolt insertion hole (not shown) for inserting a bolt used when the cable support 1 is attached to the support column 10 is bored in the attached piece 10a of the support column 10 and the connection plates 7a and 7b.

The column 10 to which the cable support 1 is attached is made of L-shaped steel, H-shaped steel, or the like, and a plurality of columns are erected at predetermined intervals along both sides in a cable laying cavity such as a frame.

Then, the cutout grooves 5 and 6 of the mounting portion 4 at the tip of the pipe 2 are fitted into the attached pieces 10a of the support columns 10, and the fitting recesses 5a, 5b, 6a and 6b of the cutout grooves 5 and 6 are fitted. The connection plates 7a and 7b fixed to the above and the bolt insertion holes of the attached piece 10a are aligned at appropriate positions, and the connection plates 7a and 7b and the attached plate 10a are fixed via bolts.

Next, the cable A is supported on the cable support 1 attached at the same height. Here, when the cable A snakes and there is a risk of dropping, the cable A is fastened to the cable support 1 by using a string-shaped fastening member to prevent the cable A from dropping.

Since the above-described cable support 1 is excellent in insulation and heat resistance, it can be insulated from the cable A and eddy current can be prevented from being generated. This prevents the temperature rise due to the generation of eddy current and prevents the power loss due to the temperature rise.

[0018]

[Effect of device]

 As described above in detail, according to the present invention, since the tubular pipe is covered with the insulating heat-shrinkable tube, it is not necessary to use a pillow insulator or a saucer to which rubber is adhered, and the number of parts is reduced. It is possible to reduce the cost by reducing the cost, and in particular, when supporting the electric cable, it is possible to prevent the generation of eddy current, prevent the temperature rise of the cable, and reduce the power loss.

Further, since the coating is easy, it is possible to coat the heat-shrinkable tube to the inner side of the end of the pipe and prevent the end face of the pipe from being exposed to ensure worker safety.

Furthermore, since the pipe and the heat-shrinkable tube that form the cable support are integrally formed, they are easy to carry and handle, and work efficiency is improved. Also, since the cable support is molded in a tubular shape, cracks and damage to the cable can be prevented, and the cable and cable support can be used for a long period of time.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a usage example of a cable supporting tool of the present embodiment.

2 is a partial schematic perspective view of FIG. 1. FIG.

FIG. 3 is a plan view showing the cable support of the above embodiment.

FIG. 4 is a side view showing an attachment portion of the cable support tool.

FIG. 5 is a sectional view of the cable support.

FIG. 6 is a partial cross-sectional view showing one end of the cable support.

[Explanation of symbols]

 A cable 1 cable support 2 pipe 3 tube 4 mounting part

Claims (2)

[Scope of utility model registration request] 1. A cable supporting tool for supporting a cable, characterized in that an outer peripheral surface of a tubular pipe provided with an attachment portion at one end is covered with an insulating heat-shrinkable tube. Ingredient 2. The cable support according to claim 1, wherein the tube is formed mainly of ethylene-propylene rubber.