JPH075220U - communication cable - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a communication cable capable of individually identifying the cable cores of the communication cable by mechanical means and without malfunction. [Structure] Each of the cable cores 2 is provided with a plurality of bar code symbol marking portions 6 covering substantially half of the outer circumferential surface of the cable cores in the circumferential direction, and these bar code symbol marking portions 6 are provided along the axial direction of the cable cores 2. A communication cable in which a predetermined interval is provided, and the cable cores 2 are arranged alternately at radial symmetrical positions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a communication cable configured by bundling a plurality of cable core wires.

[0002]

[Prior art]

 Conventionally, in a communication cable formed by bundling a plurality of cable core wires, each cable core wire is covered to facilitate identification of the cable core wire when connecting the communication cable and other members. Coloring is performed on the coating. That is, the cable core is color-coded. Normally, the colors to be colored consist of 8 colors such as (blue, yellow, green, red, purple, white, brown, black), etc. If the number of cable cores is more than the number of colors, The cable cores are bundled for each number, and the bundled core units are further covered with colored unit coarse winding tape, and the individual cable cores are individually combined by the combination of the color or number of the core unit and the color of the cable core. Was to identify.

By the way, the amount of information transmitted by a communication cable is increasing with the sophistication of communication devices in recent years, and thus the number of core wires constituting the communication cable is also increasing. For this reason, in connection work of communication cables, it is becoming difficult for operators to visually identify each cable core wire as the number of cable core wires increases. It has been attempted to use a core wire identification device that uses a color sensor for the connection.

[0004]

[Problems to be solved by the device]

 However, the core identification work by the above-mentioned core identification device has the following problems. In other words, it cannot be said that the color sensor itself has high identification accuracy, and there is a possibility of making an identification error. In addition, the core wire identification device only identifies the core wire for each color, and does not individually identify each cable core wire, but the cables identified by the core wire identification device. Depending on the combination of the color of the core wire and the color of the core wire unit that includes the core wire, the core wire identification device or the worker himself / herself needs to individually identify the cable core wire, and the It was not perfect as a means of identification.

Therefore, an object of the present invention is to provide a communication cable capable of individually identifying the cable cores of the communication cable by mechanical means and without malfunction.

[0006]

[Means for Solving the Problems]

 In order to achieve such an object, the communication cable of the present invention is provided with a plurality of bar code symbol marking portions each covering the outer peripheral surface of the cable core in the circumferential direction on the respective cable cores. It is characterized in that the symbol marking portions are arranged at predetermined intervals along the axial direction of the cable core and are alternately arranged at radial symmetrical positions of the cable core.

[0007]

[Action]

 According to the above configuration, if the identifiable information for each core wire is imprinted on each bar code symbol marking section, each core can be combined with the mechanical means for reading information from this bar code symbol marking section. The lines can be individually identified.

In addition, it is possible to imprint information on the bar code symbol display portion by applying printing technology or the like, and it is possible to read information from the bar code symbol display portion more reliably by optical means or the like. . Therefore, information can be read from the bar code symbol display section without malfunction.

Furthermore, the bar code symbol marking portion covers substantially half of the outer circumferential surface of the cable core in the circumferential direction, is spaced at a predetermined interval along the axial direction of each cable core, and is radially symmetrical about the cable core. The staggered locations allow the bar code symbol markings to be read from almost anywhere outside the cable core.

[0010]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view showing the overall structure of a communication cable according to an embodiment of the present invention, FIG. 2 is an enlarged side view of a cable core wire, and FIG. 3 is a sectional view of the cable core wire.

The communication cable 1 has a large number of cable core wires 2, ... Inside. The coating of each cable core wire 2 is colored in the same way as the conventional one. That is, each cable core wire 2 is color-coded. A plurality of cable core wires 2 are bundled by a unit coarse winding tape 3 to form a core wire unit 4. The coarse winding tape 3 of each core wire unit 4 is also colored and color-coded. Further, a plurality of the core wire units 4 are bundled and covered with the outer coating 5. If the number of cable cores is large, a plurality of core units 4 are bundled to form a core unit assembly, and a plurality of core unit units thus configured are further bundled. Configure the communication cable. In this case, the core unit assembly is also colored and color coded.

Each cable core wire 2 is provided with a bar code symbol marking portion 6 on its outer peripheral surface. As shown in FIG. 2, the bar code symbol display portion 6 has a size that covers approximately half of the outer peripheral surface of the cable core wire 2 in the circumferential direction, and the bar code symbol 7 is formed by printing in the central portion. The bar code symbol 7 is imprinted with information for individually identifying each cable core wire 2. The bar code symbol display portion 6 is formed by printing and forming a bar code symbol 7 on a white background 8. This is because the presence of the white background 8 makes it easier to determine the presence / absence of the bar code marking portion 6, and further makes it easier to read the bar code symbol 7. If the color of the cable core wire 2 is white, the effect is not obtained, and therefore the bar code symbol 7 may be directly formed as shown in FIG.

A plurality of bar code symbol indicating portions 6 having the above-described structure are formed on each cable core wire 2, and the arrangement position thereof is also characteristic. That is, a plurality of bar code marking portions 6 are arranged along the axial direction of the cable core wire 2 at predetermined intervals (5 to 20 cm). Further, the adjacent bar code symbol display portions 6 are arranged so as to face each other at radial symmetrical positions of the cable core 2. That is, the bar code symbol marking portions 6 are alternately arranged at radial symmetrical positions of the cable core wire 2.

A generally used bar code reader can be applied to identify the cable core of the communication cable 1, and the bar code reader 7 reads the bar code symbol 7 of each bar code symbol display section 6 to detect each cable core. The lines 2 can be individually identified. It is conceivable that the cable core wire 2 will be twisted during the identification work, and the reading work cannot be performed accurately. However, the bar code symbol marking portion 6 covers almost half of the outer peripheral surface of the cable core wire 2 in the circumferential direction. In addition, since the cable cores 2 are arranged alternately at radial symmetrical positions, the bar code symbol marking portion 6 can be read from any direction outside the cable cores 2 and the cable cores 2 can be read. Even if it is slightly twisted, the information can be read from any of the bar code symbol display portions 6.

In the present embodiment, each cable core wire 2 is color-coded in the same manner as the conventional one in order to assist the operator in the cable core wire identification work, but the mechanical identification as described above is performed. The cable core wire 2 can also be identified only by the operation. In this case, it is not necessary to color the cable core wire 2, and the manufacturing cost of the communication cable 1 can be reduced accordingly.

In addition, although the present invention has been implemented in a multi-pair communication cable in the above-mentioned embodiment, the present invention is not limited to this, and a cable having a plurality of cable cores may be used. Of course, any other cable will do.

[0017]

[Effect of device]

 As described above, according to the present invention, it is possible to identify each core wire mechanically and individually by combining with a mechanical means for reading information from the bar code symbol marking portion. Work has become easier and more reliable.

Further, it is possible to imprint information on the bar code symbol display portion by applying printing technology or the like, and it is possible to read information from the bar code symbol display portion more reliably by optical means or the like. . Therefore, it is possible to obtain the effect that the information can be read from the bar code symbol display section without malfunction.

Further, the bar code symbol marking portion covers substantially half of the outer circumferential surface of the cable core wire in the circumferential direction, and a predetermined interval is provided along the axial direction of each cable core wire, and the radial direction of the cable core wire. Since they are arranged symmetrically in a staggered manner, the bar code symbol can be read from almost anywhere outside the cable core, and even if the cable core is twisted to some extent, There is also an effect that information can be read from the bar code symbol display section.

[Brief description of drawings]

FIG. 1 is a side view showing a configuration of a communication cable according to an embodiment of the present invention.

FIG. 2 is an enlarged side view of the cable core wire of the embodiment.

FIG. 3 is a cross-sectional view of a cable core wire.

FIG. 4 is a side view showing a modified example of the bar code symbol display portion.

[Explanation of symbols]

 1 Communication cable 2 Cable core 6 Bar code symbol display

Claims (1)

[Scope of utility model registration request] 1. A plurality of bar code symbol marking portions (6) are provided on each of the cable core wires (2) so as to cover substantially half of the outer circumferential surface of the cable core wires in the circumferential direction, and these bar code symbol sign portions (6) are provided in the cable core. A communication cable, characterized in that it is arranged at predetermined intervals along the axial direction of the wire (2) and is arranged alternately at radial symmetrical positions of the cable core wire (2).