JP2551053Y2 - Bypass fitting - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention replaces a distribution line in a distribution facility or an electric device which receives a power supply through a distribution line by connecting a wiring terminal to a power supply side terminal such as a transformer or a terminal block. The present invention relates to a bypass connector used for performing an uninterrupted operation.

[0002]

2. Description of the Related Art Conventionally, for example, there is no suitable bypass connector for performing an operation of replacing a distribution line connected to a low-voltage device without a power failure, and it is usual to replace a power supply during a power failure. .

[0003]

[Problems to be Solved by the Invention] However, with the recent changes in lifestyles, power outages have caused various inconveniences especially to power consumers who are not away. For example, there is a drawback in that the time of an electric clock or a timer can be sent, or that inconveniences such as disappearance of data in a personal computer or a register in a retail store occur while the user is away.

In order to overcome the above-mentioned difficulties, a bypass cable for bypassing a distribution line is provided, and a clamp mechanism is used as a connector for connecting an end of the bypass cable to a power supply terminal of the transformer, and a power supply terminal of the transformer is clamped. While it is conceivable to remove the wiring terminal of the distribution line, it is necessary to prevent the wiring terminal from being clamped at the same time when the power supply side terminal is clamped. Further, it is desirable that the power supply side terminal can be clamped from any direction. Furthermore, it is desirable that the number of parts used in the clamp mechanism be small.

Therefore, the purpose of this invention is to
To provide a bypass connector that allows uninterrupted operation of replacing distribution lines, a bypass connector that allows attachment of the connector to the power supply side terminal from any direction, and a bypass connector that has a small number of parts. is there.

[0006]

In order to achieve the above object, a bypass connector according to the present invention is used when replacing a distribution line in which wiring terminals are detachably connected to plate surfaces of plate-like power supply terminals by bolts. Instead of the distribution line, it is to be attached to the end of the bypass cable for temporarily supplying power, and the power supply side terminal is clamped and a concave portion is provided to avoid the wiring terminal of the distribution line at the time of this clamping. Is the biggest feature.

In other words, the bypass connector has a conductive substantially U-shaped main body block, a holding portion for sandwiching a plate surface of the power supply terminal between one side wall of the main body block, and the holding portion. Moving means for moving to be able to approach and separate from one side wall, a connecting portion for connecting a bypass cable is provided on the main body block, and at least one of the inner surface of the holding portion and the inner surface of one side wall of the main body block, When the power supply side terminal is sandwiched between the holding portion and one side wall of the main body block, a concave portion is formed to avoid the wiring terminal.

In a preferred embodiment, a recess for avoiding the wiring terminal is provided on both the inner surface of the holding portion and the inner surface of one side wall of the main body block so that the connection to the power supply terminal can be made in at least two directions. Can also be adopted.

In a further preferred embodiment, in order to reduce the number of parts of the bypass connector, the moving means is provided with:
The other side wall of the main body block is rotatably penetrated and is formed of a rotating screw part whose inner end is connected to the holding part, and the holding part is
A configuration in which the side surface is movably disposed along the inner surface of the main body can also be adopted.

[0010]

As described above, when replacing a distribution line including a wiring terminal attached by bolts to the plate surface of a plate-like power supply side terminal, if there are two or more mounting bolts for the wiring terminal, one of them is used. After the bolts are removed, the main body block is inserted into that portion or, if there is only one mounting bolt, into the portion where the bolt is to be avoided such that the concave side is located on the wiring terminal side. Then, by the moving means, the pressing portion is moved in a direction approaching one side wall of the main body block,
The plate of the power supply terminal is sandwiched between the holding part and the body block.

At this time, since the plate surface of the power supply terminal is sandwiched, it is possible to more firmly sandwich the power supply terminal than in the case where the side edge of the power supply terminal is sandwiched. In addition, since the wiring terminal can be avoided by the concave portion provided in at least one of the holding portion and the main body block while sandwiching the plate surface of the power supply terminal, there is no problem in removing the wiring terminal.

Further, the main body block is formed in a U-shape and has a power supply side terminal interposed therebetween, so that the wiring terminals are extracted from at least two directions except for the direction in which the power supply side terminal intervenes. The formation direction of the concave portion may be set in accordance with this. Accordingly, it is possible to cope with the case where the wiring terminals are arranged and connected to the power supply side terminal in parallel with the length direction thereof, or when the wiring terminals are arranged and connected vertically.

[0013] As described above, after the power supply side terminal is sandwiched between the main body block and the holding portion, other mounting bolts of the wiring terminal of the distribution line are removed, and the distribution line is removed from the power supply side terminal. Then, power can be temporarily supplied from a power supply side to another device through a bypass cable previously connected to the main body block. Thereafter, if a new distribution line is installed in the reverse order, the distribution line can be replaced without interruption.

As shown in the preferred embodiment, when the concave portion is provided in both the main body block and the holding portion, when the operator holds the power supply side terminal, it is not necessary to confirm on which side the concave portion is located. It can be interposed on the power supply terminal,
The workability is improved.

Further, as shown in a further preferred embodiment, the holding portion is prevented from rotating with the rotation of the rotary screw portion, and the holding portion is linearly moved and guided along the main body block. If the portion is arranged so as to be in contact with the inner wall of the main body block, a special component as a guide means is not required.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the accompanying drawings will be described below. 1 is a perspective view showing a distribution line replacement operation using the bypass connector according to the present invention, FIG. 2 is a front view of the connector,
FIG. 3 is a side view thereof.

In FIG. 1, a wiring terminal 4 of a distribution line 3 is connected to a terminal block 2 as a power supply side terminal on the secondary side of the transformer 1, and power is supplied from the transformer 1 through the distribution line 3. In the power distribution equipment, when the distribution line 3 is replaced, the connection state of the bypass connector 6 attached to one end of the bypass cable 5 and the power supply side terminal 2 which is a feature of the present invention is shown. In FIG. 1, reference numeral 7 denotes a connector provided at the other end of the bypass cable 5, and reference numeral 8 denotes a primary-side power supply terminal.

The bypass connector 6 is, as shown in FIG.
A main body block 9 and a holding portion 10 are provided. The main body block 9 is made of a conductive material made of copper or a copper alloy, and has a holding portion 11 for holding the terminal block 2 (power supply side terminal) of the transformer 1 between the holding portion 10 and the holding portion 11. Holder 13 for Holding Rotating Screw 12 as Means for Moving Unit 10
Connecting portion 1 for connecting holding portion 13 and holding portion 11
4 to form a substantially U-shape.

A bypass cable 5 is provided on the outer surface of the connecting portion 14.
A screw hole 17 for connecting the connection terminal 15 (see FIG. 6) with a bolt 16 is formed. Further, a screw hole 18 is formed in the holding portion 13, and the holding portion 1 is formed in the screw hole 18.
A rotary screw portion 12 as a zero moving means is screwed. When pressing the holding portion 9 against the terminal block 2, an electrically insulating rotating handle 19 is provided on the head 12 a of the rotating screw portion 12.
(See FIG. 6) are detachably connected.

As shown in FIG. 2, when the plate surface of the plate-shaped terminal block 2 is clamped between the holding section 10 and the clamping section 11, the clamping section 11 connects the wiring terminals 4 connected to the terminal block 2 to each other. A recess 21 for avoidance is formed on the inner pressing surface 11a.

On the other hand, as shown in FIG.
As in the case of the holding portion 11, the concave portion 2 is formed in the pressing portion 10a on the inner surface thereof.
2, the inner end of the rotary screw portion 12 is fixed to the bottom of the concave portion 22 with a screw 23, and the holding portion 10 is movably guided along the inner wall of the connecting portion 14 of the main body block 9. .

Therefore, the rotation of the rotary screw portion 12 causes the holding portion 10 to be linearly moved and guided so as to be able to approach and separate from the holding portion 11, and requires a special member for suppressing the rotation of the holding portion 10. The presser 10 can be guided without the need. And, by the holding section 11 and the holding section 10,
By changing the size of the sandwiching portion that clamps the power supply side terminal, it is possible to firmly sandwich the plate surface of the terminal block 2 that is the power supply side terminal. Also, in this sandwiched state, the wiring terminal 4 of the bypass cable 5 can be attached and detached by the concave portion 22 of the holding portion 10 or the concave portion 21 of the holding portion 11.

In this case, the main body block 9 and the holding portion 10
As shown in FIGS. 3 and 6, the wiring terminal 4 is attached to the plate surface of the terminal block 2 perpendicularly to the length direction of the terminal block 2 with two bolts 24 and 25. In this case, the dimensions are set such that even if the terminal block 2 is clamped with one bolt 24 removed, the other bolt 25 can be avoided.

The bypass cable 5 and the distribution line 3 are
A special heat-resistant vinyl insulated wire (SHIV wire) or the like is used, but the material is not limited to this. Further, the connection tool 7 at the other end of the bypass cable 5 may be a well-known self-connection type connection terminal.

Next, the method of using the bypass connector 6 will be briefly described. As shown in FIG. 4, two bolts 24 and 25 are attached to the plate-shaped terminal block 2 on the secondary side of the transformer 1. One of the mounting bolts 24 of the wiring terminal 4 of the installed distribution line 3 is removed (see FIG. 5). Next, as shown in FIG. 6, the bypass connector 6 is attached so as to sandwich the plate surface of the terminal block 2 at the removed portion.

In this case, the plate surface of the terminal block 2 is sandwiched by the pressing portions 10a and 11a of the holding portion 11 and the holding portion 10 of the main body block 9, and the rotary screw portion 12 is rotated by using the rotary handle 19 to hold the holding portion. 10 to the holding section 11 and
Clamp. Then, since the bypass cable 5 is connected to the connecting portion 14 in advance, power can be supplied from the terminal block 2 to another device through the bypass cable 5.

Then, as shown in FIG. 7, the other bolt 25 of the wiring terminal 4 is removed, and the distribution line 3 is connected to the terminal block 2.
(See FIG. 8). This distribution line 3
After the replacement, connect the wiring terminal 4 of the new distribution line 3 to the power supply side terminal 2 of the transformer 1 in the reverse order, and then remove the bypass connector 6 from the terminal block 2 to complete the work. I do.

As described above, the wiring terminal 4 of the distribution line 3 is interposed in the concave portion 22 of the holding portion 10, but only the concave portion 22 of the holding portion 10 allows the operator to clamp the terminal block 2. At times, care must be taken to position the holding portion 10 side with the wiring terminal 4 side. However, the holding portion 11
If the recess 21 is also provided on the side, the work can be performed by clamping the terminal block 2 while avoiding the wiring terminal 4 regardless of whether the wiring terminal 4 is located on the holding section 10 side or the holding section 11 side. .

Further, in the above-described embodiment, the description has been made on the attachment and detachment of the wiring terminal having two holes.
The present invention can be applied to a single-hole wiring terminal as long as the mounting bolt protrudes upward or downward from the connection tool 6 when the connection tool 6 is connected.

As shown in FIG. 9, when the wiring terminal 4 is attached to the plate surface of the power supply terminal 2 in parallel in the length direction, the connecting portion 14 of the main body block 9 is connected to the power supply terminal 2. By sandwiching the power supply side terminal 2 so as to be positioned on the lower side or the upper side of the power supply terminal 2, the same operation as described above can be performed.

Further, as shown in FIG. 10, even with the connecting tool 6 in which the opening 28 of the U-shaped main body block 9 and the open sides of the concave portions 21 and 22 are aligned, the same operation as described above can be easily performed. I can do it.

[0032]

[Effect of the invention] As is clear from the above detailed description,
According to the bypass connector according to the present invention, the plate surface of the power supply side terminal can be sandwiched by the substantially U-shaped main body block and the pressing portion that can be freely moved toward and away from the main body block,
Compared to the case where the side edge of the power supply side terminal is inserted, it is possible to insert the terminal more firmly. In addition, since the wiring terminal can be avoided by the concave portion provided in at least one of the holding portion and the main body block while sandwiching the plate surface of the power supply side terminal, there is no problem in removing the wiring terminal,
Distribution lines can be replaced without interruption.

Further, when the concave portion is provided in both the main body block and the holding portion as in claim 2, when the operator holds the power supply terminal, the operator does not have to confirm which side the concave portion is located on the power supply side. The workability can be improved because it can be interposed in the terminal.

Further, the pressing portion is prevented from rotating with the rotation of the rotary screw portion, and the pressing portion is linearly moved and guided along the main body block. If you place it so that it contacts the inner wall of the block,
No special parts are required as guide means, and the number of parts can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a distribution line replacement operation using a bypass connector according to the present invention.

FIG. 2 is a front view of a connecting device.

FIG. 3 is a side view thereof.

FIG. 4 is a perspective view showing a state in which a power supply side terminal and a distribution line terminal are connected by two bolts.

FIG. 5 is a perspective view showing a state in which one bolt has been removed from the state of FIG. 4;

FIG. 6 is a perspective view showing a state where the power supply side terminal is sandwiched by the bypass connector from the state of FIG. 5;

7 is a perspective view showing a state in which bolts of distribution line terminals have been removed from the state of FIG. 6;

8 is a perspective view showing a state in which the distribution line terminal has been removed from the power supply side terminal from the state of FIG. 7;

FIG. 9 is a perspective view showing a state in which the wiring terminals are attached to the plate surface of the power supply side terminal in parallel in the length direction.

FIG. 10 is a perspective view of a connector in which the opening of the U-shaped main body block and the opening side of the concave portion match each other.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transformer 2 Terminal block 3 Distribution line 4 Wiring terminal 5 Bypass cable 6 Bypass connector 9 Main body block 10 Holding part 11 Holding part 12 Rotating screw part 13 Holding part 14 Connecting part 24, 25 bolt

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masatoshi Shinya 3-2-6 Honcho, Chuo-ku, Osaka-shi, Osaka Inside Osaka Fuse Co., Ltd. (72) Inventor Kazuhiko Inoue 3-2-2 Honcho, Chuo-ku, Osaka-shi, Osaka No. 6 Inside Osaka Fuse Co., Ltd.

Claims (3)

(57) [Scope of request for utility model registration] 1. An end of a bypass cable for temporarily supplying power instead of a power distribution line when replacing a power distribution line having a wiring terminal detachably connected to a plate surface of a plate-shaped power supply side terminal by a bolt. A bypass connection tool attached to the main body block, the main body block having a substantially U-shaped conductivity, a pressing portion for sandwiching a plate surface of a power supply terminal between one side wall of the main body block, and the pressing portion; Moving means for moving so as to be able to approach and separate from the side wall, a connecting portion for connecting a bypass cable is provided on the main body block, and at least one of an inner surface of the holding portion and an inner surface of one side wall of the main body block. And a recess for avoiding a wiring terminal when the power supply terminal is sandwiched between the holding portion and one side wall of the main body block. 2. The bypass connector according to claim 1, wherein the recess is provided on an inner surface of the holding portion and an inner surface of one side wall of the main body block. 3. The moving means comprises a rotary screw portion rotatably threaded to the other side wall of the main body block and having an inner end connected to the pressing portion, and the pressing portion has a side surface formed on the inner surface of the main body. The bypass connector according to claim 1, wherein the bypass connector is movably disposed along.