JP3153662U - Cable misconnection prevention tool - Google Patents

Abstract

An object of the present invention is to provide a cable misconnection prevention tool that can easily and reliably prevent cable misconnection. A cable misconnection including a first identification tag attached to a terminal portion of a cable, 1 and a second identification tag corresponding to the first identification tag and attached to a connected portion to which a cable is connected. It is a preventer, and one of the first identification tag 1 or the second identification tag 2 has a protruding portion 1a, and the other has an insertion portion 2a into which the protruding portion 1a is inserted. Only when the bottom shape of the insertion portion 2a matches, the protruding portion 1a can be inserted to a predetermined insertion position of the insertion portion 2a. [Selection] Figure 1

Description

  The present invention relates to a cable misconnection prevention tool that can prevent cable misconnection.

  Currently, mobile phones are widely used, and many base stations for performing wireless communication with mobile phone terminals are installed.

  The base station has an antenna and a transmission / reception device, and the antenna and the transmission / reception device are connected using a coaxial cable. Normally, three antennas are installed, and each antenna has a reception connection portion and a transmission connection portion, and a total of these six connection portions and corresponding transmission / reception devices are connected by coaxial cables. Since the antenna is installed on the top of a steel tower, the rooftop of a building or condominium, etc., the antenna and the transmission / reception device installed in the station building are far away, and the coaxial cable for connection may exceed 100 m. .

  By the way, when connecting the antenna and the transmission / reception apparatus, it is difficult to identify each cable, and there is a case where each antenna and the corresponding transmission / reception apparatus are erroneously connected. These erroneous connections will lead to inability to call the mobile phone. In addition, when a cable is exchanged for maintenance, there is a restriction on working time, and it is necessary to work quickly while preventing erroneous connection.

  For this reason, in order to prevent such erroneous connection of cables, a method of winding a color-coded vinyl tape around the terminal portion of each cable is used so that it can be distinguished from other cables. However, when the antenna is installed on the roof of a building or condominium and the station is installed on the ground, the cable is passed through a narrow space where the power cable is already passed, so vinyl tape is wrapped around the cable end. In the method, there is a problem that the vinyl tape is peeled off in the middle of the work and becomes unidentifiable.

  In addition, as a method for preventing a cable from being erroneously connected, in Patent Document 1 below, a plurality of identification strips having different colors are attached to the outer peripheral surface of the cable in a detachable manner and continuously in the longitudinal direction. A method is disclosed. Specifically, each cable can be identified by peeling one strip of different color from each cable.

JP 2000-182450 A

  However, also in the method disclosed in the cited document 1, there is a possibility that the identification strip that has not been peeled off will be unintentionally peeled off during the work, making the identification impossible. Also, the work of peeling the thin identification strip is difficult.

  Accordingly, an object of the present invention is to provide a cable misconnection prevention tool that can easily and reliably prevent erroneous connection of cables.

In order to solve the above problems, the cable misconnection prevention tool according to the present invention is:
A first identification tag attached to the end of the cable;
Corresponding to this first identification tag, a cable erroneous connection prevention device comprising a second identification tag attached to a connected portion to which the cable is connected,
One of the first identification tag or the second identification tag has a protruding portion, and the other has an insertion portion into which the protruding portion is inserted,
Only when the tip shape of the protruding portion and the bottom shape of the inserting portion match, the protruding portion can be inserted to a predetermined insertion position of the inserting portion.

  The operation and effect of the cable misconnection prevention tool having such a configuration will be described. The cable misconnection prevention tool includes a first identification tag and a second identification tag, the first identification tag is attached to a terminal portion of the cable, the second identification tag corresponds to the first identification tag, It is attached to the connected part to which the cable is connected. One of the first identification tag or the second identification tag has a protruding portion, and the other has an insertion portion into which the protruding portion is inserted, and only when the tip shape of the protruding portion matches the bottom shape of the insertion portion. The protruding portion can be inserted up to a predetermined insertion position of the insertion portion.

  According to this configuration, when the first identification tag and the second identification tag correspond to each other, the tip shape of the protruding portion and the bottom shape of the inserting portion are matched, and the protruding portion reaches the predetermined insertion position of the inserting portion. On the other hand, if the first identification tag and the second identification tag do not correspond, the tip shape and the bottom shape do not match, and the protruding portion cannot be inserted to the predetermined insertion position of the insertion portion. Become. Therefore, if the first identification tag is attached to the cable and the second identification tag 2 corresponding to the first identification tag is attached in advance to a connected portion (for example, a connection portion such as an antenna or a transmission / reception device) to which the cable is connected. In the cable connection work, after the cable is connected to the connected part, it is confirmed that the first identification tag can be inserted into the second identification tag up to a predetermined insertion position, thereby combining the cable and the connected part. No mistakes will be made. Therefore, according to the cable misconnection prevention tool of the present invention, it is possible to easily and reliably prevent cable misconnection.

  A plurality of combinations of the first identification tag and the second identification tag corresponding to the first identification tag are prepared, and for each combination, the tip shape of the protruding portion and the bottom shape of the insertion portion are made different, and the tip shape of the protruding portion Only when the bottom part shape of the insertion part matches, the protruding part can be inserted up to a predetermined insertion position of the insertion part, thereby preventing erroneous connection between a plurality of cables and a plurality of connected parts. it can.

  In addition, the cable incorrect connection prevention tool of this invention is not restricted to the cable used for the connection of an antenna and a transmission / reception apparatus, It can be used in order to prevent misconnection of various cables. Further, the connected portion is not limited to a connector portion such as a transmission / reception device, but may be a connector portion of another cable to which a cable is connected.

  In addition, the cable may be wired in a pipe pipe made of metal or plastic, but the first identification tag and the second identification tag are not directly attached to the cable or the connected part, but are attached to the surrounding pipe pipe. It is also possible to prevent erroneous connection of cables.

  In this invention, it is preferable that the convex part formed in the side surface of the said protrusion part and the hole part formed in the side wall of the said insertion part are engaged in the said predetermined insertion position.

  According to this configuration, since the convex portion and the hole portion are engaged at the predetermined insertion position, when the first identification tag and the second identification tag correspond to each other, the protruding portion is the predetermined portion of the insertion portion. It is inserted and fixed to the insertion position. Accordingly, the first identification tag and the corresponding second identification tag can be stored without being separated, and when the combination of the first identification tag and the second identification tag is correct, the protruding portion is inserted into the insertion portion. Can not be easily removed from, and is easy to work with.

  In addition, the shape of the protrusion of the protrusion and the shape of the hole of the insertion part are made different for each combination of the first identification tag and the corresponding second identification tag, so that the tip shape of the protrusion and the insertion part As in the case of the bottom shape of the cable, there is no mistake in the combination of the cable and the connected portion, and erroneous connection of the cable can be prevented.

  In the present invention, the first identification tag and the second identification tag preferably each include a display unit on which identification information is displayed.

  According to this configuration, the same identification information is displayed on the display unit of the first identification tag and the second identification tag corresponding to the first identification tag, thereby easily identifying the combination of the first identification tag and the second identification tag. it can.

  In the present invention, it is preferable that the display unit is provided on an upper surface of the convex portion.

  By providing a display unit on which the identification information is displayed on the upper surface of the projection of the projection, the identification information of the projection can be obtained through the hole even after the projection of the projection and the hole of the insertion unit are engaged. It can be visually recognized from the outside, and the combination of the first identification tag and the second identification tag can be confirmed.

  In the present invention, it is preferable that the first identification tag and the corresponding second identification tag have the same color.

  According to this configuration, the first identification tag and the second identification tag corresponding to the first identification tag have the same color, and the color is changed for each combination of the first identification tag and the second identification tag. A combination of corresponding second identification tags can be easily identified.

The figure which shows an example of a 1st identification tag and a 2nd identification tag The figure which shows another combination of a 1st identification tag and a 2nd identification tag The figure which shows another combination of a 1st identification tag and a 2nd identification tag The figure which shows another combination of a 1st identification tag and a 2nd identification tag The figure which shows another combination of a 1st identification tag and a 2nd identification tag The figure which shows another combination of a 1st identification tag and a 2nd identification tag The figure which shows the actual usage condition of a 1st identification tag and a 2nd identification tag The figure which shows another example of a 1st identification tag and a 2nd identification tag

  Hereinafter, embodiments of the present invention will be described in detail. An example of the first identification tag 1 and the second identification tag 2 corresponding thereto is shown in FIG. 1A is a front view and a bottom view of the first identification tag 1, FIG. 1B is a front view and a bottom view of the second identification tag 2, and FIG. 1C is a diagram showing the first identification tag 1 and the second identification tag 2. It is the front view which combined the identification tag 2. FIG. Here, an example in which the first identification tag 1 has the protruding portion 1a and the second identification tag 2 has the insertion portion 2a will be described.

  Both the first identification tag 1 and the second identification tag 2 have a plate-like appearance as a whole. The 1st identification tag 1 has the protrusion part 1a, and the 2nd identification tag 2 has the insertion part 2a in which the protrusion part 1a is inserted. The insertion portion 2a is a cavity having substantially the same size as the protrusion 1a, and the entire protrusion 1a can be inserted.

  The tip 1b of the protrusion 1a shown in FIG. 1 has a shape in which a notch 1c is formed in part. In this example, a square notch 1c is formed at the right end of the tip 1b.

  Moreover, the bottom part 2b of the insertion part 2a shown in FIG. 1 becomes a shape which formed the step part 2c in part. In this example, a square step 2c is formed at the right end of the bottom 2b.

  The notch 1c of the protruding portion 1a and the stepped portion 2c of the inserting portion 2a have the same shape, that is, the tip shape of the protruding portion 1a and the bottom shape of the inserting portion 2a are the same. For this reason, the front-end | tip part 1b of the protrusion part 1a of the 1st identification tag 1 can be inserted to the deepest part (bottom part 2b) of the insertion part 2a of the 2nd identification tag 2 corresponding to this. FIG. 1C shows a state in which the distal end portion 1b of the protruding portion 1a is inserted to the position of the bottom portion 2b of the insertion portion 2a.

  The shape (tip shape) of the distal end portion 1b of the protruding portion 1a and the shape (bottom shape) of the bottom portion 2b of the insertion portion 2a are different for each combination of the first identification tag 1 and the second identification tag 2 corresponding thereto. is doing. For example, in addition to the shape shown in FIG. 1, the shape shown in FIGS. Specifically, in the example of FIG. 2, the positions of the notch 1c and the stepped portion 2c are reversed from those of FIG. Further, in the example of FIG. 3, two notches 1c and two step portions 2c are provided. In the example of FIG. 4, the positions of the notch 1c and the stepped portion 2c are reversed from those in FIG. In the example of FIG. 5, the notch 1c is provided at the center of the tip portion 1b, and the stepped portion 2c is provided at the center of the bottom portion 2b. Further, in the example of FIG. 6, one notch 1c is provided on each of the left and right sides of the tip 1b, and one step 2c is provided on each of the left and right of the bottom 2b.

  The tip shape of the protrusion 1a and the bottom shape of the insertion portion 2a shown in FIGS. 1 to 6 do not match except for the combination of the corresponding first identification tag 1 and second identification tag 2, so the tip 1b of the protrusion 1a. Cannot be inserted to the deepest part (bottom part 2b) in the insertion part 2a of the second identification tag 2 which does not correspond to this.

  A convex portion 1d is formed on the side surface of the protruding portion 1a. The convex portion 1d has an upper surface 1f that is rectangular. Further, a hole 2d is formed in the side wall of the insertion portion 2a so as to penetrate the side wall. The hole 2d has substantially the same rectangular shape as the protrusion 1d. Further, the protrusion 1d and the hole 2d are formed when the tip 1b of the protrusion 1a shown in FIG. 1C is inserted to the position of the bottom 2b of the insertion part 2a, that is, the protrusion 1a is a predetermined part of the insertion part 2a. It is formed at a position to be engaged when inserted up to the insertion position.

  The first identification tag 1 and the second identification tag 2 have display portions 1e and 2e, respectively. Identification information such as letters, numbers, and symbols is displayed on the display units 1e and 2e. By making the identification information of the display units 1e and 2e the same, the corresponding first identification tag 1 and second identification tag 2 are displayed. Can be easily identified. The identification information may be written on the display units 1e and 2e with a pen or may be engraved. The identification information displayed on the display units 1e and 2e is not limited to the characters shown in FIGS.

  Furthermore, the display part 1e of the first identification tag 1 is formed on the upper surface 1f of the convex part 1d. Thereby, even after the convex part 1d is engaged with the hole 2d, the identification information of the display part 1e can be visually recognized from the outside through the hole 2d.

  Further, through holes 1g and 2g are formed at the end portions of the first identification tag 1 and the second identification tag 2, and are used for attachment to a cable or a connected portion to which the cable is connected. 10 and 20 can be connected (see FIG. 7). The attachment member is exemplified by a binding band (cable tie), but it is preferable that the attachment member can be removed again after attachment to a cable or the like.

<Usage of first identification tag and second identification tag>
The first identification tag 1 and the second identification tag 2 corresponding to the first identification tag 1 are attached in advance to a cable and a connected portion to which the cable is to be connected. Then, in the cable connection work, after the cable is connected to the connected part using the display parts of the first identification tag 1 and the second identification tag 2 as a mark, the first identification tag 1 is attached to the second identification tag 2 at the end of the work. To a predetermined insertion position, and confirms that the convex portion 1d and the hole portion 2d can be engaged.

  FIG. 7 shows an actual usage situation of the first identification tag 1 and the second identification tag 2. In this way, if the first identification tag 1 is completely inserted into the second identification tag 2 up to a predetermined insertion position, it is confirmed that the cable 3 is correctly connected to the connected portion 4 to which it is connected. it can.

  By the way, it is difficult to identify both ends of a single cable from a plurality of cables, such as when one of a plurality of already connected cables is removed from a connected part and replaced with a new cable. It may be.

  In such a case, as a method for specifying both end portions of one cable from a plurality of cables, there is a method using an energization tester. Here, the case of a coaxial cable will be described. The electricity tester is connected to one end of the coaxial cable, can conduct electricity to one copper wire of the coaxial cable, and can check whether this electricity is returned from the other copper wire.

  For example, one is selected from a plurality of coaxial cables connected to a transmission / reception device at a station, and an endurance tester is connected to the end. Then, one of the plurality of coaxial cables connected to the antenna is selected, its end is closed with a cover, and electricity is supplied from the conduction tester on the transmission / reception device side. At this time, if the coaxial cable with the conduction tester connected to the transmitter / receiver side is the same as the coaxial cable closed with a cover on the antenna side, the electricity flowing from the conduction tester returns to the conduction tester. Light or sound can be generated to inform the operator. If the coaxial cable with the conduction tester connected to the transmitter / receiver side is different from the coaxial cable with the antenna side closed by a cover, the electricity flowing from the conduction tester will not return to the conduction tester, so light, sound, etc. Does not occur. Therefore, the cover is sequentially connected to another coaxial cable, and the process is repeated until light or sound is generated, so that the coaxial cable having the conduction tester connected to the transmitter / receiver side is specified.

<Another embodiment>
The external shapes of the first identification tag 1 and the second identification tag 2 are not limited to the above-described embodiment, and may be, for example, a shape as shown in FIG. 8 and can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 1st identification tag 1a Protrusion part 1b Tip part 1d Protrusion part 1e Display part 1f Upper surface 2 2nd identification tag 2a Insertion part 2b Bottom part 2d Hole part 3 Cable 4 Connected part

Claims (5)

A first identification tag attached to the end of the cable;
Corresponding to this first identification tag, a cable erroneous connection prevention device comprising a second identification tag attached to a connected portion to which the cable is connected,
One of the first identification tag or the second identification tag has a protruding portion, and the other has an insertion portion into which the protruding portion is inserted,
A cable misconnection prevention tool in which the protrusion can be inserted to a predetermined insertion position of the insertion portion only when the tip shape of the protrusion matches the bottom shape of the insertion portion.   2. The cable error according to claim 1, wherein a convex portion formed on a side surface of the protruding portion and a hole portion formed in a side wall of the insertion portion are engaged at the predetermined insertion position. Connection prevention tool.   The cable misconnection prevention tool according to claim 1 or 2, wherein each of the first identification tag and the second identification tag includes a display unit on which identification information is displayed.   The cable misconnection prevention tool according to claim 3, wherein the display portion is provided on an upper surface of the convex portion.   5. The cable misconnection prevention tool according to claim 1, wherein the first identification tag and the second identification tag corresponding to the first identification tag have the same color.

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