JP2014175280A - U link, and u code - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a U link and U code for enabling a communication line test or the like by connecting the U code to the U link while the U link is inserted into a jack board.SOLUTION: A U link 10 comprises first and second apparatus side insertion/insertion reception pieces 10a, 10b and first and second line side insertion/insertion reception pieces 10c, 10d, where the pieces 10a and 10c and pieces 10b and 10d are configured by single conductive plates respectively. A U code 20 is configured so as to be capable of selecting either of: electrically connecting first and second conductive members of a slide switch 20i to only first and second apparatus side conductive plates 20Xb1, 20Yb1, respectively; electrically connecting the first conductive member to only the first apparatus side conductive plate 20Xb1 and a first line side conductive plate 20Xb2, and electrically connecting the second conductive member to only the second apparatus side conductive plate 20Yb1 and a second line side conductive plate 20Yb2; and electrically connecting the first and second conductive members to only the first and second line side conductive plates 20Xb2, 20Yb2, respectively.

Description

  The present invention relates to a U link and a U code suitable for testing a communication line installed in a communication device using an analog line.

  In an electric power company, for example, as shown in FIG. 3, a control station monitoring control device 1 (hereinafter referred to as “control station MP1”) and a substation remote monitoring control device 2 (hereinafter referred to as “substation TC2”). When the substation TC2 is in operation when the communication line test is performed between the test station and the control station, the tester transmits the control relay station information distribution device 3 (hereinafter referred to as “control relay station DX3”) and the substation TC2. The U link 5 is pulled out from the jack board 4 that connects to the first and second device side insertion ports 4a and 4b of the jack board 4 as shown by solid arrows in FIG. The second plug insertion pieces 7X and 7Y are inserted to connect the control relay station DX3 and the simulation test apparatus 6 (hereinafter referred to as “TCT6”).

  Further, when a communication line test is performed between the control station MP1 and the substation TC2, if the control station MP1 cannot be used for some reason, the tester pulls out the U link 5 from the jack board 4 and moves to FIG. As indicated by the broken arrow, the first and second plug insertion pieces 7X and 7Y of the U cord 7 are inserted into the first and second line side insertion ports 4c and 4d of the jack board 4, respectively, and the substation TC2 And TCT6 are connected.

Therefore, as shown in FIGS. 4 (a) and 4 (b), the conventional U link 5 includes the conductive first and second device-side plug-in pieces 5a and 5b and the conductive first and second conductive members. Line-side insertion pieces 5c and 5d, conductive first and second insertion receiving pieces 5e and 5f, and a hollow rectangular parallelepiped body 5g.
At the center of the surface of the main body 5g, first and second insertion ports 5X and 5Y are arranged in parallel, and the first and second plug insertion pieces 7X and 7Y of the U cord 7 can be inserted, respectively. Has been.
The first and second device-side plug-in pieces 5a and 5b are juxtaposed so that the front end protrudes from the lower part of the rear surface of the main body 5g. It is inserted in each of the insertion ports 4a and 4b (see FIG. 3).
The first and second line side plug-in pieces 5c and 5d are juxtaposed so that the front end protrudes from the upper part of the rear surface of the main body 5g. It is inserted in each of the insertion ports 4c and 4d (see FIG. 3).
The first insertion receiving piece 5e is provided in the main body 5g, is electrically connected to the first device side insertion piece 5a and the first line side insertion piece 5c, and is The first plug insertion piece 7X of the U cord 7 inserted into the insertion port 5X is made to be received.
The second insertion receiving piece 5f is provided in the main body 5g, and is electrically connected to the second device-side insertion piece 5b and the second line-side insertion piece 5d. The second plug insertion piece 7Y of the U cord 7 inserted into the insertion port 5Y is configured to be received.

As shown in FIGS. 5A to 5D, the conventional U cord 7 includes conductive first and second plug insertion pieces 7X and 7Y and conductive first and second connection pieces. 7a, 7b, a hollow rectangular parallelepiped main body 7g, and a hollow rectangular body-shaped connection portion 7h.
The first and second plug insertion pieces 7X and 7Y are arranged side by side so that the tip ends protrude from the center of the front surface of the main body 7g.
The first and second connection pieces 7a, 7b are provided in the main body 7g, the ends are fixed to the connection portion 7h, and the tips are respectively connected to the ends of the first and second plug insertion pieces 7X, 7Y. Electrically connected.
The connection portion 7h has a front surface portion attached to the back surface portion of the main body 7g, and two connection cords (see FIG. 3) for connecting the TCT 6 and the U cord 7 inserted from the rear surface are first and second. Each of the connection pieces 7a and 7b is electrically connected.

Thus, when the first and second plug insertion pieces 7X and 7Y of the U cord 7 are respectively inserted into the first and second device side insertion ports 4a and 4b of the jack board 4, the control relay station DX3 and the TCT6 Can be connected via the first and second plug insertion pieces 7X and 7Y of the U cord 7 and the first and second connection pieces 7a and 7b and the two connection cords.
When the first and second plug insertion pieces 7X and 7Y of the U cord 7 are respectively inserted into the first and second line side insertion ports 4c and 4d of the jack board 4, the substations TC2 and TCT6 are connected. The first and second plug insertion pieces 7X and 7Y of the U cord 7 and the first and second connection pieces 7a and 7b can be connected to the two connection cords.

  In addition, one of the applicants of this patent application disclosed in Patent Document 1 below is a plug of two terminals on each of the device side and the line side, an opening / closing means for opening / closing between the outside by insertion / extraction of an insertion rod, etc. A measuring socket means connected to one side, and controlling the open / close state of the opening / closing means by setting the length of the insertion plug of the measuring plug having the insertion bar, easy operation, reliable and quick communication line test We propose a U-link for communication lines that can do this.

Japanese Patent Laid-Open No. 2008-186652

However, since the U link 5 described above has a hole in the jack board 4, if the U link 5 drops away from the hand when the tester pulls out the U link 5 from the jack board 4, There was a problem that the link 5 fell below the floor and it was difficult to find it.
Further, when returning the U link 5 to the jack board 4, the tester removes the first and second device side insertion pieces 5a, 5b or the first and second line side insertion pieces 5c, 5d of the U link 5. When the system is restored with the plug board 4 being shifted and inserted without being inserted into the first and second device side insertion ports 4a and 4b or the first and second line side insertion ports 4c and 4d of the jack board 4, There was a problem of raising the alarm.

  An object of the present invention is to provide a U link and a U code that can be used for a communication line test or the like by connecting the U code to the U link while the U link is inserted into the jack board.

The U-link of the present invention is a U-link (10) to which a U-cord provided with first and second plug insertion pieces can be connected, and is arranged in parallel at the center of the surface of the main body (10g). And the front-end | tip part protrudes from the 1st and 2nd insertion port (10X, 10Y) for inserting the said 1st and 2nd plug insertion piece of the said U cord, respectively, and the lower part of the rear surface of this main body The first and second device side insertion / insertion receiving pieces (10a, 10b) arranged side by side in this manner, and the first and second pieces arranged side by side so that the front end protrudes from the upper part of the rear surface of the main body. 2 line side insertion / insertion pieces (10c, 10d), the first device side insertion / insertion piece and the first line side insertion / insertion piece, The first plug insertion piece of the U cord inserted into the first insertion port is electrically connectable, The second plug-side plug of the U-code in which the second device-side insertion / insertion piece and the second line-side insertion / insertion piece are inserted into the second insertion port The first device side insertion / insertion receiving piece, the second device side insertion / insertion receiving piece, the first line side insertion / The insertion receiving piece and the second line side insertion / insertion receiving piece are each composed of a single conductive plate.
The U cord of the present invention is a U cord (20) that can be connected to the U link (10) of the present invention. The first and second plug insertion pieces (20X, 20Y), the first and second conductive members attached to the main body and provided with the first and second conductive members can be switched. Slide switch (20i) and first and second flexible switches provided in the main body and having tip portions electrically connected to the first and second conductive members of the slide switch, respectively. And the first plug insertion piece connects the first equipment side conductive portion (20Xb1) and the first line side conductive portion (20Xb2) to the first insulating plate (20Xb2). 20Xa) and attached to both sides. The second plug insertion piece has the second device-side conductive portion (20Yb1) and the second line-side conductive portion (20Yb2) attached to both side surfaces of the second insulating plate (20Ya), respectively. And when the mode is set to the first mode by sliding the slide switch, the first conductive member is electrically connected only to the first device-side conductive portion, and When the second conductive member is electrically connected only to the second device-side conductive portion and the slide switch is slid to set the mode to the second mode, the first conductive member is The second conductive member is electrically connected only to the second device side and the line side conductive portion, and is electrically connected only to the first device side and the line side conductive portion, and the slide switch is slid Let me When the mode is set to the third mode, the first conductive member is electrically connected only to the first line-side conductive portion, and the second conductive member is connected to the second line-side. It is characterized in that it is electrically connected only to the conductive part.
Here, the first device-side conductive portion of the first plug insertion piece is attached to the side surface of the first insulating plate opposite to the second plug insertion piece, and the terminal The first insulating plate is folded back so as to reach the end of the side surface of the first insulating plate on the side of the second plug insertion piece, and the first plug insertion piece The first line-side conductive portion is attached to the side surface of the first insulating plate on the second plug insertion piece side, and the end is a predetermined distance from the end of the first device-side conductive portion The second device-side conductive portion of the second plug insertion piece is attached to the side surface of the second insulating plate opposite to the first plug insertion piece. In addition, the end portion of the second insulating plate is the end portion of the second insulating plate, and the side of the first plug insertion piece side of the second insulating plate The second line side conductive portion of the second plug insertion piece is attached to the side surface of the second insulating plate on the first plug insertion piece side. In addition, the end may be separated from the end of the second device-side conductive portion at a predetermined interval.
The slide switch has a rod-like shape with an upper end projecting from the upper surface of the main body and a lower end projecting from the lower surface of the main body, and the slide switch is disposed on the upper and lower surfaces of the main body in the longitudinal direction of the main body. A through hole for allowing the slide switch to slide is formed, and three letters indicating the slide positions of the first to third modes of the slide switch may be written on the upper surface of the main body.

  The U link and the U cord of the present invention electrically connect the first conductive member only to the first device-side conductive portion and switch the second conductive member to the second by mode switching by the U code slide switch. Electrically connected only to the device-side conductive portion, or the first conductive member is electrically connected only to the first device-side and the line-side conductive portion, and the second conductive member is connected to the second device-side and the line The first conductive member is electrically connected only to the first line side conductive part and the second conductive member is electrically connected only to the second line side conductive part. Therefore, it is possible to perform a communication line test or the like by connecting the U cord to the U link while the U link is inserted into the jack board.

1A and 1B are diagrams showing the configuration of a U link 10 and a U code 20 according to an embodiment of the present invention, FIG. 3A is a diagram for explaining an internal structure of the U link 10, and FIG. It is a figure for demonstrating a structure and an internal structure. It is a figure which shows the electrical connection relation of the U link 10 and U cord 20 which were shown in FIG. 1, (a) is a figure which shows the electrical connection relation in case a mode is "always", (b) is a mode Is a diagram showing an electrical connection relationship when “EQPT” is selected, and (c) is a diagram showing an electrical connection relationship when the mode is “LINE”. It is a figure for demonstrating the method of the communication line test between control station MP1 and the substation TC2 using the conventional U link 5 and the U code 7. FIG. It is a figure which shows the structure of U link 5 shown in FIG. 3, (a) is a front view of U link 5, a top view, and a right view, (b) is the structure in the main body 5g of U link 5. It is a figure for demonstrating. It is a figure which shows the structure of the U cord 7 shown in FIG. 3, (a) is a top view which shows the external structure of the U code 7, (b) is a front view which shows the external structure of the U code 7, (C) is a top view which shows the structure in the main body 7g of the U cord 7, (d) is a front view which shows the structure in the main body 7g of the U cord 7. FIG.

  The above-mentioned purpose is to provide the first equipment side insertion / insertion piece of the U link, the second equipment side insertion / insertion piece, the first line side insertion / insertion piece and the second line. The line-side plug-in / plug-in piece is composed of a single conductive plate, and the first plug-in plug of the U cord is electrically insulated from the first device-side conductive plate and the first plug The circuit-side conductive plate is attached to both side surfaces of the first insulating plate, and the second device-side conductive plate and the second plug are electrically insulated from the second plug insertion piece of the U cord. As a configuration in which the circuit side conductive plate is attached to both side surfaces of the second insulating plate, the first conductive member is electrically connected only to the first device side conductive plate by the slide switch and the second conductive member is used. Is electrically connected only to the second device side conductive plate, or the first conductive member is connected to the first device side and the circuit side conductor. The second conductive member is electrically connected only to the plate and the second conductive member is electrically connected only to the second device side and the line side conductive plate, or the first conductive member is electrically connected only to the first line side conductive plate. And the second conductive member can be selected to be electrically connected only to the second line side conductive plate.

Embodiments of U-link and U-code according to the present invention will be described below with reference to the drawings.
First, the U link 10 according to an embodiment of the present invention will be described.
As shown in FIG. 1 (a), the U link 10 according to the present embodiment includes a first equipment side insertion / insertion piece 10a and a second equipment side insertion, each composed of a single conductive plate. -It differs from the conventional U link 5 mentioned above in that it includes a plug-in piece 10b, a first line-side plug / plug-in piece 10c, and a second line-side plug-in / plug-in piece 10d. .

  That is, in the conventional U-link 5, the first insertion receiving piece 5e is always electrically connected to the first device side insertion piece 5a and the first line side insertion piece 5c and the second The insertion piece 5f is always electrically connected to the second device-side insertion piece 5b and the second line-side insertion piece 5d (see FIG. 4B), but the U link according to this embodiment. 10, the first insertion piece 5e is divided into the second device side and the line side insertion pieces 5b and 5d and the second device side and the opposite side of the line side insertion pieces 5b and 5d. The second insertion receiving piece 5f is divided into a first device side and line side insertion pieces 5a and 5c side and an opposite side of the first device side and line side insertion pieces 5a and 5c. The second device side of the insertion piece 5e and the opposite side of the line side insertion pieces 5b, 5d are always electrically connected to the first device side insertion piece 5a. The device-side insertion / insertion piece 10a of the first insertion-receiving piece 5e is connected to the second device-side and line-side insertion pieces 5b, 5d with the first line-side insertion piece 5c. The first line side insertion / insertion piece 10c is configured by always being electrically connected, and the second insertion reception piece 5f is opposite to the first device side and the line side insertion pieces 5a, 5c. The second device side insertion / insertion receiving piece 10b is configured by always electrically connecting the second device side insertion piece 5b to the first device side of the second insertion reception piece 5e. The second line-side insertion / insertion piece 10d is configured by always electrically connecting the side and line-side insertion pieces 5a, 5c to the second line-side insertion piece 5d.

Next, the U code 20 according to an embodiment of the present invention will be described.
As shown in FIG. 1B, the U code 20 according to this embodiment is different from the conventional U code 7 described above in the following points.
(1) The 1st and 2nd plug insertion pieces 20X and 20Y are set as the structure which attached the electrically insulated conductive board or electrically conductive film to the both sides | surfaces of an insulating board, respectively.
That is, the first plug insertion piece 20X includes the first insulating plate 20Xa having the same shape and size as the first plug insertion piece 7X of the conventional U cord 7, and the first insulating plate 20Xa. 2 is attached to the side surface opposite to the plug insertion piece 20Y, and the end portion is the end portion of the first insulating plate 20Xa, and the side surface on the second plug insertion piece 20Y side of the first insulating plate 20Xa The first device side conductive plate 20Xb1 folded back to reach the end of the first insulating plate 20Xa and attached to the side surface on the second plug insertion piece 20Y side of the first insulating plate 20Xa, and the end is the first The first line side conductive plate 20Xb2 is separated from the end of the device side conductive plate 20Xb1 with a predetermined interval.
Similarly, the second plug insertion piece 20Y includes a second insulating plate 20Ya having the same shape and size as the second plug insertion piece 7Y of the conventional U cord 7, and the second insulating plate 20Ya. The first plug insertion piece 20X is attached to the side opposite to the first plug insertion piece 20X, and the end portion of the second insulation plate 20Ya is the end portion of the second insulation plate 20Ya on the first plug insertion piece 20X side. The second device-side conductive plate 20Yb1 folded back to reach the end of the side surface, and attached to the side surface of the second insulating plate 20Ya on the first plug insertion piece 20X side, and the end is the second And the second line-side conductive plate 20Yb2 separated from the end of the device-side conductive plate 20Yb1 by a predetermined distance.

(2) The first and second flexible cords 20j and 20k are used instead of the first and second connection pieces 7a and 7b of the conventional U cord 7, and "EQPT" (device side) , A slide switch 20i capable of switching between three modes “always” and “LINE” (line side) is attached to the distal end side of the main body 20g.

Here, the slide switch 20i has a rectangular bar shape with an upper end protruding from the upper surface of the main body 20g of the U cord 20 and a lower end protruding from the lower surface of the main body 20g. In addition, the three modes can be switched by touching the lower end with the hand and sliding the slide switch 20i along the longitudinal direction of the main body 20g.
Therefore, a through hole is formed in the upper surface and the lower surface of the main body 20g of the U cord 20 so that the slide switch 20i can slide in the longitudinal direction of the main body 20g, and the slide switch 20i is formed on the upper surface of the main body 20g. The letters “EQPT”, “always” and “LINE” indicating the slide positions of the three modes are respectively marked.

  The first and second conductive members are incorporated in the center of the slide switch 20i. When the slide switch 20i is slid to set the mode = “EQPT”, the first conductive member is the first conductive member. When electrically connected only to the device-side conductive plate 20Xb1 and the second conductive member is electrically connected only to the second device-side conductive plate 20Yb1, and the slide switch 20i is slid to set the mode = “always” The first conductive member is electrically connected only to the first device side and the line side conductive plates 20Xb1 and 20Xb2, and the second conductive member is only connected to the second device side and the line side conductive plates 20Yb1 and 20Yb2. When electrically connected and the slide switch 20i is slid to set the mode = “LINE”, the first conductive member is the first line-side conductive plate 20Xb. Second conductive members with electrical connection is to be electrically connected only to the second line side conductor plate 20Yb2 only.

  The distal ends of the first and second flexible cords 20j and 20k are electrically connected to the first and second conductive members of the slide switch 20i, respectively.

  Thus, when the slide switch 20i is slid to set the mode = “always”, as shown in FIG. 2A, the first conductive member of the slide switch 20i is connected to the first device side and the line side conductive. Since the U cord 20 is inserted into the U link 10 for electrical connection only to the plates 20Xb1 and 20Xb2, the first equipment side insertion / insertion receiving piece 10a and the first line side insertion of the U link 10 The insertion receiving piece 10c can be electrically connected, and the second conductive member of the slide switch 20i is electrically connected only to the second device side and the line side conductive plates 20Yb1 and 20Yb2. By inserting the cord 20 into the U link 10, the second device side insertion / insertion piece 10b and the second line side insertion / insertion piece 10d of the U link 10 are electrically connected. It can be.

When the slide switch 20i is slid to set the mode = “EQPT”, as shown in FIG. 2B, the first conductive member of the slide switch 20i is only connected to the first device-side conductive plate 20Xb1. In order to make an electrical connection, by inserting the U cord 20 into the U link 10, the first device side insertion / insertion receiving piece 10a of the U link 10 and the first flexible cord 20j are electrically connected. Since the second conductive member of the slide switch 20i can be electrically connected only to the second device-side conductive plate 20Yb1, the U cord 20 is inserted into the U link 10 so that the U The second device-side insertion / insertion receiving piece 10b of the link 10 can be electrically connected to the second flexible cord 20k.
As a result, when the communication line test is performed between the control station MP1 and the substation TC2 as shown in FIG. 3, when the substation TC2 is in operation, the tester can connect the U link 10 The first and second plug insertion pieces 20X and 20Y of the U cord 20 are inserted into the first and second insertion ports 10X and 10Y of the U link 10 without pulling out the control relay station DX3. A communication line test can be performed by electrically connecting the TCT 6.

Further, when the slide switch 20i is slid to set the mode = “LINE”, as shown in FIG. 2C, the first conductive member of the slide switch 20i is only connected to the first line-side conductive plate 20Xb2. In order to make an electrical connection, by inserting the U cord 20 into the U link 10, the first line side insertion / insertion receiving piece 10c of the U link 10 and the first flexible cord 20j are electrically connected. Since the second conductive member of the slide switch 20i is electrically connected only to the second line side conductive plate 20Yb2, the U cord 20 is inserted into the U link 10 to The second line side insertion / insertion receiving piece 10d can be electrically connected to the second flexible cord 20k.
As a result, when performing a communication line test between the control station MP1 and the substation TC2 as shown in FIG. By inserting the first and second plug insertion pieces 20X and 20Y of the U cord 20 into the first and second insertion ports of the U link 10 without pulling out the sub-station 10, the substations TC2 and TCT6 are connected. A communication line test can be performed by electrical connection.

  As described above, by using the U link 10 and the U cord 20 according to the present embodiment, the U cord 10 is connected to the U link 10 while the U link 10 is attached to the jack board 4 and the slide switch 20i is slid. Thus, the “connection state / disconnection state” and the test target “device side / line side” can be switched more safely and simply by simply switching the mode.

1 Control station MP
2 Substation TC
3 Control relay station DX
4 Jack board 4a, 4b 1st and 2nd apparatus side insertion port 4c, 4d 1st and 2nd line side insertion port 5 U link 5X, 5Y 1st and 2nd insertion port 5a, 5b 1st 1 and 2 apparatus side insertion piece 5c, 5d 1st and 2nd line side insertion piece 5e, 5f 1st and 2nd insertion piece 5g Main body 6 TCT
7 U cord 7X, 7Y 1st and 2nd plug insertion piece 7a, 7b 1st and 2nd connection piece 7g Main body 7h Connection part 10 U link 10X, 10Y 1st and 2nd insertion port 10a, 10b 1st and 2nd apparatus side insertion and insertion piece 10c, 10d 1st and 2nd line side insertion and insertion piece 10g Main body 20 U cord 20X, 20Y 1st and 2nd plug insertion Pieces 20Xa, 20Ya first and second insulating plates 20Xb1, 20Xb2 first and second equipment side conductive plates 20Yb1, 20Yb2 first and second line side conductive plates 20g body 20h connection portion 20i slide switch 20j, 20k first 1 and 2nd flexible cord

Claims (4)

A U-link (10) to which a U-cord having first and second plug insertion pieces can be connected,
First and second insertion ports (10X, 10Y) arranged in parallel at the center of the surface of the main body (10g) and for inserting the first and second plug insertion pieces of the U cord, respectively )When,
First and second device side insertion / insertion receiving pieces (10a, 10b) juxtaposed so that the front end protrudes from the lower part of the rear surface of the main body;
The first and second line-side insertion / insertion pieces (10c, 10d) arranged in parallel so that the front end protrudes from the upper part of the rear surface of the main body,
The first plug difference of the U cord in which the first equipment side insertion / insertion piece and the first line side insertion / insertion piece are inserted into the first insertion port It can be electrically connected to the insert,
The second plug-side plug of the U cord in which the second device side insertion / insertion piece and the second line side insertion / insertion piece are inserted into the second insertion port It can be electrically connected to the insert,
The first device side insertion / insertion piece, the second device side insertion / insertion piece, the first line side insertion / insertion piece, and the second line side insertion -The insertion piece is composed of one conductive plate,
U-link characterized by this. A U cord (20) connectable to a U link (10) according to claim 1,
First and second plug insertion pieces (20X, 20Y) arranged side by side so that the front end protrudes from the center of the front surface of the main body (20g);
A slide switch (20i) attached to the main body, provided with first and second conductive members, and capable of switching between the first to third modes;
First and second flexible cords (20j, 20k) provided in the main body and having tip portions electrically connected to the first and second conductive members of the slide switch, respectively Comprising
The first plug insertion piece is configured such that the first device side conductive portion (20Xb1) and the first line side conductive portion (20Xb2) are respectively attached to both side surfaces of the first insulating plate (20Xa). And
The second plug insertion piece has a configuration in which the second device side conductive portion (20Yb1) and the second line side conductive portion (20Yb2) are respectively attached to both side surfaces of the second insulating plate (20Ya). And
When the slide switch is slid to change the mode to the first mode, the first conductive member is electrically connected only to the first device-side conductive portion and the second conductive member Is electrically connected only to the second device-side conductive portion,
When the mode is changed to the second mode by sliding the slide switch, the first conductive member is electrically connected only to the first device side and the line side conductive portion, and the second Are electrically connected only to the second device side and the line side conductive portion,
When the mode is changed to the third mode by sliding the slide switch, the first conductive member is electrically connected only to the first line-side conductive portion, and the second conductive member Is electrically connected only to the second line-side conductive portion,
A U-code characterized by that. The first device side conductive portion of the first plug insertion piece is attached to a side surface of the first insulating plate opposite to the second plug insertion piece, and a terminal portion is Folded at the end of the first insulating plate so as to reach the end of the side surface of the first insulating plate on the second plug insertion piece side;
The first line side conductive portion of the first plug insertion piece is attached to a side surface of the first insulating plate on the second plug insertion piece side, and a terminal is the first device. It is separated from the end of the side conductive part at a predetermined interval,
The second device side conductive portion of the second plug insertion piece is attached to the side surface of the second insulating plate opposite to the first plug insertion piece, and the end portion is the Folded at the end of the second insulating plate so as to reach the end of the side surface of the second insulating plate on the first plug insertion piece side;
The second line side conductive portion of the second plug insertion piece is attached to the side surface of the second insulating plate on the first plug insertion piece side, and the terminal is the second device. Separated from the end of the side conductive part by a predetermined distance,
The U code according to claim 2, wherein: The slide switch has a rod-like shape with an upper end protruding from the upper surface of the main body and a lower end protruding from the lower surface of the main body,
A through hole is formed on the upper and lower surfaces of the main body to enable the slide switch to slide in the longitudinal direction of the main body.
Three letters indicating the slide positions of the first to third modes of the slide switch are written on the upper surface of the main body,
The U code according to claim 2 or 3, characterized in that

Images