JP3414716B2 - Cable fittings - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable connector that can be used in a connecting / branching operation.

[0002]

2. Description of the Related Art Conventionally, the work of branching a main cable for supplying electricity to each floor of a building and the connection of cables cut at a construction site are performed by directly connecting the cables or by using a plug-in connector or They were connected using a connecting device such as a battledore-shaped connection terminal.

The method of directly connecting the cables is to scrape the sheath and the insulator of the cables to expose the conductive wires, entangle the conductive wires with each other, and wind the insulating tape.
It is a method of winding an insulating tape around each conductive wire and then winding the insulating tape around the whole.

Further, a general plug-in connector used conventionally is one in which male and female plugs are attached to respective cables, and male and female plugs are fitted and connected. Although this plug-in connector costs a little more, it can be connected simply by plugging it in, and is highly reliable because it is difficult to disconnect.

In addition, as for the generally used battledore-shaped connecting terminal, a connecting terminal having a semicircular cross section obtained by dividing a cylindrical portion into two in the axial direction is attached to each cable, and the cracked surface portion is attached. They are joined and connected. This battledore-shaped connection terminal is less expensive than the plug-in connector described above and is characterized by being easily insulated.

[0006]

However, the method of directly connecting the cables has a problem that they are easily detached when pulled because they are connected only by tape. Further, if the tape is peeled off, it is easy to cause electric leakage or short circuit, which is not preferable.

Further, none of the connection apparatus described above, when attached to the cable, it must be attached to some scraped sheath and cable insulation to the portion, connecting the conductive wire in the bare instrument.

If the conductive wire is damaged when the sheath and the insulator of the cable are removed , it is dangerous because the damaged part is loaded more than other parts. Therefore, this work is very careful and time consuming.

Further, if the conductive wire is damaged, the cable must be cut to that part and the sheath and the insulator of the cable must be scraped off to some extent .
Not only is work time wasted, but so is the cable.

In addition, the sheath and the insulator of the cable are scraped.
When removed, there was also the problem that the scraped sheath and the remains of the insulator were generated, and the work site became dirty.

Further, since the connecting work particularly pulls or twists the cable, the conductive wire in the cable may be cut. At that time, there has been a problem in that it is difficult to identify the location where insulation has been performed in the past, and a delay occurs in the connecting / branching work, or the entire work is also hindered.

[0012]

In order to solve the above-mentioned problems, the cable connecting device according to the present invention is provided with adjacent cables.
A cable connector for electrically connecting
Has a plurality of covered electric wires and covers the covered electric wires
The end of is on the same plane as the end of the conductive wire of the covered electric wire ,
Multiple connections that plug into the end of each covered wire in the cable
A pin , an insulating gripping portion for connecting and holding a plurality of connection pins, and an insertion assisting tool to be inserted between the covered electric wires of the cable,
It is equipped with tightening metal fittings that are attached to the outer circumference of the end of the cable into which the connection pin is inserted.Each end of the connection pin is sharp, and each end of the connection pin projects from the gripping part. The parts are arranged in parallel at a predetermined interval, and the insertion aid includes a partition member composed of one or a plurality of partition plates and a bottom plate fixed to the base end of the partition member, and the partition plates are radial. Arranged at substantially equal angles, holes are formed in the bottom plate for connection pins to pass through, and holes in the bottom plate are formed one by one between partition plates, and the inside of the covered wire when the insertion aid is inserted into the cable is formed. It is characterized by being on an extension of the end of the conductive wire.

Further, a guard piece is provided on the partition plate of the insertion aid.

Further, the connection pin and the grip portion can be separated from each other.

Further, the present invention is characterized in that a confirmation lamp is provided on the grip portion.

Further, the present invention is characterized in that the connector, the luminaire, the motor, or the switch is provided with either end of the cable connector, or substantially half, at the base end thereof.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A cable connector 2 according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a cable connector 2 according to the present invention. 2 is an explanatory view showing an embodiment of the cable connecting tool 2 according to the present invention. Further, FIG. 4 is a partial cross-sectional view showing a use state of the cable connecting tool 2 according to the present invention. It should be noted that these figures do not limit the present invention.

The cable connector 2 according to the present invention is characterized by at least a connection pin 4, a grip portion 6, an insertion assisting tool 10, and a mounting member 20.

Here, the cable connector 2 according to the present invention.
Is a cabtyre cable with a fine wire configuration (specifically, VC).
T, Soft VCT, 1CT, 2CT, 3CT, 2RNC
However, the present invention is not limited to this and can be used for various types of cables. Also, these cables that connect to the cable connector 2
The end of the covering body that covers the covered electric wire 24 is
Check that it is on the same plane as the end of the conductive wire 30 of the covered wire 24.
Characterize.

The connection pin 4 according to the present invention is made of a conductive metal. The conductive metal is not particularly limited and may be set appropriately. Further, it is preferable that the connecting pin 4 has a pointed shape. A plurality of grooves may be formed at the tip of the connecting pin 4.

The shape of the connection pin 4 may be cylindrical or prismatic, and may be set appropriately. Further, the size of the connection pin 4 may be appropriately set in consideration of the thickness of the conductive wire 30 of the cable 22 and the like. Further, it may be in the shape of a rod as shown in FIG. 1, or may be branched into a plurality, for example, two or three.

The connection pins 4 according to the present invention are arranged on the extension lines of the ends of the conductive wires 30 when the insertion aid 10 to be described later is inserted into the cable 22, and are arranged in parallel. . The number of the connecting pins 4 can be adjusted according to the number of the conductive wires 30 of the cable 22. Therefore, the cable connector 2 according to the present invention can also be used for a high-voltage cable such as a 3-phase or 4-phase cable.

Next, the grip portion 6 according to the present invention is formed of an insulating material and covers the connecting pin 4 so that it can be connected and held. The insulating material is not particularly limited and may be appropriately set in consideration of various conditions. Also, the grip 6
The outer circumference may be covered with vinyl or rubber.

The shape of the grip portion 6 may be, for example, a columnar shape or a prismatic shape, and may be any shape. Further, the guide groove 8 as shown in FIG. 1 may be formed.
The guide groove 8 is formed in such a size that it can be engaged with a mounting member 20 described later. As shown in the figure, the grip 6 has a tip of the connecting pin 4 protruding from the end.

A confirmation lamp may be attached to the grip portion 6. This confirmation lamp is connected to the connection pin 4,
It may have a simple structure in which the lamp is turned on when electricity is supplied by connecting the cable 22. By attaching this confirmation lamp, it can be used not only for confirming the energization state of the cable 22 and the cable connector 2, but also for examining the leakage of the cable 22 after attachment and the disconnection state in the cable.

The confirmation lamp can be of any kind, for example a light emitting diode.
Further, not only one but a plurality may be installed, and the installation position and the like may be set appropriately.

Next, FIG. 3 shows the insertion aid 10 according to the present invention.
FIG. 3 is a perspective view and a plan view showing FIG. The insertion assisting tool 10 according to the present invention includes a partition member including one or a plurality of partition plates 12 and a bottom plate 16 fixed to a base end portion of the partition member.
The material of the insertion assisting tool 10 may be, for example, vinyl chloride or polyethylene, and may be appropriately set in consideration of various conditions.

As shown in FIG. 3, the partition plate 12 of the insertion assisting tool 10 has partition plates 12 radially extending from the central portion arranged at substantially equal angles. It is preferable that the partition plate 12 is fixed at the central portion, and the tip of the central portion is raised so as to be easily inserted into the cable 22.

The insertion aid 10 according to the present invention is attached to the cable 2.
When inserted in 2, the partition plates 12 are inserted between the conductive wires 30, so that the plurality of conductive wires 30 are fixed one by one between the partition plates 12. The number of partition plates 12 can be adjusted according to the number of conductive wires 30 in the cable.

A guard piece 14 is provided at the end of the partition plate 12. The guard piece 14 may be installed at any position of the partition plate 12, and may be set at a fixed portion of the partition plate 12 and the bottom plate 16 as shown in FIG. By providing this guard piece 14, each covered electric wire can be reliably separated, and a short circuit between the adjacent conductive wires 30 can be prevented.

Further, the bottom plate 16 is formed with a hole 18 through which the connecting pin 4 can pass. The holes 18 are formed one by one between the partition plate 12 and the partition plate 12 described above, and are on the extension line of the end of the conductive wire 30 when the insertion assisting device is inserted into the cable 22. Therefore, the insertion aid 1 according to the present invention
When 0 is inserted into the cable 22, the conductive wire 30 is fixed by the partition plate 12, and the end of the conductive wire 30 is located at the same position as the hole 18 formed in the bottom plate 16.
When the connection pin 4 is penetrated through, the connection pin 4 can be automatically inserted into the conductive wire 30.

In addition, inside the ordinary cable, the covered electric wire 24
Is making a gentle turn. When the connecting pin 4 is directly inserted into the cable 22 without using the insertion aid 10, the connecting pin 4 penetrates the covered electric wire 24 to reach another covered electric wire 24 at a portion where the conductive wire 30 is twisted, and short-circuits. There is a risk of doing it. However, if the plug-in aid 10 is connected to the cable 22
, The covered electric wires 24 are fixed by the partition plate 12, so that the twisted covered electric wires 24 can be made straight, and there is no concern that the connection pin 4 penetrates the covered electric wires 24.

When the insertion aid 10 according to the present invention is inserted into the cable 22, the partition plate 12 is inserted between the covered electric wires. Even if the connecting pin 4 is inserted into the conductive wire 30 in this state and the outer circumference of the cable is strongly tightened with the mounting bracket 20 described later, the partition plate 12 fixes the connecting pin 4, so that the connecting pin 4 bends inward. Deformation can be prevented.

Next, the fitting 20 according to the present invention is characterized in that the outer circumference of the end of the cable 22 into which the connecting pin 4 is inserted is tightened. The end of the cable 22 expands slightly when the connecting pin 4 is inserted into the conductive wire 30. By tightening this portion with the mounting bracket 20, the cable connector 2 and the cable 22 can be firmly connected.

The mounting member 20 may have any shape and structure. For example, as shown in FIG. 1, the structure may be such that it engages with the guide groove 8 of the grip portion 6 described above. Also,
A plurality of protrusions may be provided in the portion where the outer circumference of the end of the cable 22 is fastened to prevent the cable 22 from coming off easily. Such a mounting bracket 20 engages with the grip portion 6,
Moreover, since the end portion of the cable 22 can also be tightened, the cable 22 and the cable connector 2 can be connected more reliably. Further, by tightening the cable 22, the contact between the connection pin 4 and the conductive wire 30 also becomes good.

The cable connector 2 according to the present invention is
The above components may be integrally formed or may be separable. For example, as shown in FIG. 5, it is possible to assemble various parts to form the cable connector 2.

At this time, the connecting pin 4 has a body portion slightly larger than the tip portion. Also, the grip 6
A hole sized to allow the body portion of the connection pin 4 to pass through is formed at one end, and a hole sized to allow the tip of the connection pin 4 to pass through is formed at the other end. . Therefore, when the connecting pin 4 is inserted from one end of the grip portion 6, the body portion is caught in the hole at the other end,
Only the tip portion of the connection pin 4 can be projected.
Moreover, by using the lid member 32, the grip portion 6 and the connection pin 4 can be connected and held. Further, by adjusting the position and the number of holes formed in the grip portion 6, it is possible to deal with the cable 22 having a plurality of conductive wires 30 of three phases or four phases.

Further, the base end of the connector, the lighting fixture, the motor or the switch may be provided at one end of the cable connector 2 according to the present invention, or substantially half thereof. Here, the connector refers to a plug, a meta computer, a VVF insertion port, or the like.

In a normal connector or the like, the sheath 26, the insulator 28, etc. of the cable 22 had to be shaved off and incorporated, but by making the above-mentioned shape, it can be connected simply by inserting it into the cut cable 22. You can Therefore, the working time can be significantly reduced.

Further, in order to make it easy to insert the connecting pin 4 into the conductive wire 30, an auxiliary tool 34 as shown in FIG. 6 may be used. This auxiliary tool may have a shape like an ice pick as shown in FIG . The auxiliary tool 34 is used to form a hole for inserting the connection pin 4 in the conductive wire 30.
By using this auxiliary tool 34, the connection pin 4 can be easily inserted into the conductive wire 30.

The cable connector 2 described above can be changed in various conditions and settings without departing from the spirit of the present invention.

Next, the outline of the connecting / branching work using the cable connector 2 according to the present invention will be described. First, the end portion of the cable 22 to be connected is cut at a right angle to the side surface of the cable. Next, the insertion aid 10 is inserted from the end of the cable. At this time, the partition plate 12 of the insertion aid 10 is inserted between the conductive wires 30 in the cable, and the conductive wires 30 are separately isolated and fixed by the partition plate 12. After inserting the insertion aid 10 until the end of the cable and the bottom plate 16 of the insertion aid 10 come into contact with each other, insert the connection pin 4 into the hole formed in the bottom plate 16 and insert the connection pin 4 into the cable connection device. 2 and the cable 22 are electrically connected. afterwards,
The other cable 22 is also similarly connected to the cable connector 2
The cable 22 and the cable connector 2 can be connected so as not to be easily pulled out by inserting the mounting bracket 20 after the insertion.

[0043]

The cable connector according to the present invention has at least a connection pin and a grip portion, and since the tip end portion of the connection pin is inserted into a conductive wire in the cable for connection, the sheath and the insulator of the captyre cable are scraped off. There is no need, and work efficiency can be greatly improved.

In addition, the sheath and insulator of the cable are scraped.
Since they can be connected without taking them , the remains of the sheath and the insulator do not occur, and the work site can be kept clean.

Further, the cable connecting tool according to the present invention comprises an insertion assisting tool having a plurality of partition plates and a bottom plate fixed to the partitioning plate, and when the insertion assisting tool is inserted into the cable,
The partition plate fixes the conductive wire in the cable at a predetermined position, and the bottom plate has a hole through which the connection pin penetrates in advance on the extension line of the fixed position of the conductive wire. It can be connected to the conductive wire only by passing through.

Further, in the insertion assisting tool according to the present invention, the partition plate can be inserted between the covered electric wires to fix the covered electric wire in the cable in a straight line, so that the connecting pin can be surely inserted into the conductive wire. You can

Further, in the insertion assisting tool according to the present invention, since the partition plate is inserted and fixed between the covered electric wires, it is possible to prevent the connecting pin from being deformed even when the cable is tightened by the mounting fitting. .

Further, since the confirmation lamp is installed in the grip portion of the cable connecting tool according to the present invention, it is possible to work while knowing the energized state of the cables connected during the work, and the work efficiency is improved. be able to.

Further, the cable connector according to the present invention has a confirmation lamp which can be connected only by cutting and inserting the cable, and can be visually checked for the energized state. It can also be used for inspecting the power status of cables.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a cable connector according to the present invention.

FIG. 2 is an explanatory view showing an example of a cable connecting tool according to the present invention.

FIG. 3 is an explanatory view showing an insertion assisting tool according to the present invention.

FIG. 4 is a partial cross-sectional view showing a connected state of the cable connector according to the present invention.

FIG. 5 is an explanatory view showing the structure of a separable cable connector according to the present invention.

FIG. 6 is an explanatory view showing an auxiliary tool according to the present invention.

[Explanation of symbols]

2 cable connection 4 connection pins 6 grip 8 guide grooves 10 Insertion aids 12 partition boards 14 Guard pieces 16 Bottom plate 18 holes 20 Mounting bracket 22 cable 24 covered electric wire 26 sheath 28 Insulator 30 conductive wire 32 Lid member 34 Auxiliary equipment

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Chen Kaigi 5-6 Kantoso, 8-6-12 Nishigotanda, Shinagawa-ku, Tokyo 208 (56) Reference JP-A-11-67291 (JP, A) JP Flat 10-41010 (JP, A) JP-A-4-306574 (JP, A) Actual open Sho 59-31781 (JP, U) Actual open Sho 58-36577 (JP, U) Actual open Sho 61-14468 (JP , U) Jitsuko 52-5271 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 9/03 H01R 4/26 H02G 15/08 H01R 4/24 H01R 13/46

Claims (6)

(57) [Claims] 1. A cable connector for electrically connecting adjacent cables, wherein the cable has a plurality of covered electric wires, and an end portion of a covering body covering the covered electric wires is
The cable is on the same plane as the end of the conductive wire,
A plurality of connecting pins to be inserted into the end of each covered electric wire inside ,
An insulative grip for connecting and holding the plurality of connection pins;
An insertion assisting tool to be inserted between the covered electric wires of the cable, and a fastening metal fitting to be attached to the outer periphery of the end of the cable into which the connection pin is inserted, each end of the connection pin being sharp, Each end portion of the pin projects from the gripping portion, each end portion of the plurality of connection pins is arranged substantially in parallel at a predetermined interval, and the insertion aid is a partition formed by one or a plurality of partition plates. A member and a bottom plate fixed to the base end of the partition member, the partition plates are arranged radially at substantially equal angles, and holes are formed in the bottom plate through which the connecting pins pass, and holes in the bottom plate. Is formed between the partition plates one by one, and is on the extension line of the end of the conductive wire in the covered electric wire when the insertion aid is inserted into the cable. 2. The cable connector according to claim 1, wherein a guard piece is provided on the partition plate of the insertion aid. 3. The cable connector according to claim 1, wherein the connection pin and the grip portion are integrally formed. 4. The cable connector according to claim 1, wherein the connection pin and the grip portion can be separated from each other. 5. The cable connecting device according to claim 3, wherein a confirmation lamp is attached to the grip portion. 6. The connector, the luminaire, the motor or the switch is provided with one end of the cable connector, or approximately half of the base end of the switch. The cable connector described in.