JP3081433U - Cable fittings - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide a cable connector that can easily and surely connect / branch adjacent cables without slitting a cable sheath and an insulator. Each end of a plurality of connection pins inserted into the end of each coated electric wire of a cable is pointed, protrudes from a gripping portion, and is disposed substantially in parallel with a predetermined interval.
A wall 36 is provided on the gripping portion, and the insertion aid 10 includes a partition member including one or a plurality of partition plates, a bottom plate fixed to a base end portion of the partition member, and a guard piece provided on the partition plate. The partition plate is radially arranged at substantially the same angle, the bottom plate is formed with one hole through which the connection pin is formed between the partition plates, and the inside of the insulated wire when the auxiliary insertion device is inserted into the cable. The connecting pin, the through hole of the insertion aid, the partition plate, and the guard piece are formed in a shape corresponding to the rotation of the covered electric wire in the cable.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a cable connecting device that can be used in a connection branching operation.

[0002]

[Prior art]

 Conventionally, when branching trunk cables to supply electricity to each floor of a building, or when connecting cables that have been cut at a construction site, the cables can be connected directly, or plug-in connectors or blade-shaped connections can be used. They were connected using connecting devices such as terminals.

[0003] A method of directly connecting the cables is to cut the sheath and the insulator of the cable, expose the conductive wires, entangle the conductive wires of each other, wind the insulating tape, and wind the insulating tape around each conductive wire. This is a method of winding an insulating tape all over.

[0004] Further, a general plug-in connector conventionally used is one in which male and female plugs are attached to respective cables, and the male and female plugs are fitted and connected. Although the cost of this plug-in connector is slightly higher, it can be connected simply by inserting it, and it is highly reliable because it is hard to disconnect.

[0005] Further, a commonly used connection terminal in the form of a vane plate has a connection terminal having a semicircular cross-section in which a columnar portion is bisected in the axial direction, attached to each cable. The parts are joined and connected. The connection terminal in the form of a blade is less expensive than the above-described plug-in connector, and is characterized by being easily insulated.

[0006]

[Problems to be solved by the invention]

 However, the method of directly connecting the cables has a problem that the cables are easily disconnected when pulled because they are connected only by tape. In addition, if the tape comes off, it is not preferable because the leakage or short circuit easily occurs.

[0007] Further, when any of the above-mentioned connecting devices is attached to the cable, the sheath and the insulator of the cable must be slipped to a certain extent, and the conductive wire must be exposed and attached to the connecting device.

If the conductive wire is damaged when slipping the sheath and the insulator of the cable, a load is applied to the damaged portion more than other portions, which is dangerous. Therefore, this work is very time consuming because it is done with care.

Further, if the conductive wire is damaged, the cable must be cut to that point and the sheath and the insulator of the cable must be slipped to a certain extent again. No, cables are wasted.

[0010] Further, when the sheath and the insulator of the cable are slipped, there is a problem in that the scraped-out sheath and debris of the insulator are generated and the work site becomes dirty.

[0011] Further, since the connecting operation particularly pulls or twists the cable, the conductive wire in the cable may be cut. At that time, there has been a problem that it has been difficult to specify the place where the insulation has been performed in the past, so that the connecting and branching work is delayed or the whole work is hindered.

[0012]

[Means for Solving the Problems]

 In order to solve the above problems, a cable connector according to the present invention is a cable connector for electrically connecting adjacent cables, wherein the cable has a plurality of coated electric wires, A plurality of connection pins to be inserted into the ends of the wires, an insulating grip portion for connecting and holding the plurality of connection pins, an insertion aid inserted between conductive wires in the covered wire of the cable; and the connection pins A clamp is attached to the outer periphery of the end of the cable into which the cable is inserted.Each end of the connection pin is sharp, each end of the connection pin protrudes from the grip, and each end of the plurality of connection pins is provided. Are arranged substantially in parallel at a predetermined interval, a wall is provided on the grip portion, and the insertion aid is fixed to a partition member made of one or more partition plates and a base end of the partition member. On the bottom plate and partition plate A guard piece, wherein the partition plates are radially arranged at substantially the same angle, holes are formed in the bottom plate, through which connection pins penetrate, and holes in the bottom plate are formed one by one between the partition plates. It is on the extension of the end of the conductive wire inside the insulated wire when the auxiliary insertion device is inserted into the cable. It is characterized by being formed in a shape corresponding to turning.

[0013] Further, the tip of the connection pin is lower than the upper edge of the wall.

Further, at least one window is formed in the wall.

[0015]

[Embodiment of the invention]

 The 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. FIG. 3 is a partial cross-sectional view showing a use state of the cable connector 2 according to the present invention. These figures do not limit the present invention.

The cable connector 2 according to the present invention is characterized by comprising at least a connecting pin 4, a grip 6, a plug-in aid 10, and a fitting 20.

Here, the cable connector 2 according to the present invention is mainly a cabtire cable having a thin wire structure (specifically, VCT, soft VCT, 1CT, 2CT) specified by the Japan Electric Wire & Cable Association Standard (JCS). , 3CT, 2RNCT, 2PNCT, etc.). However, the present invention is not limited to this, and can be used for various kinds of cables such as three-phase and four-phase cables.

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

The shape of the connection pin 4 may be cylindrical or prismatic, and may be set as appropriate. Also, 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 have a bar shape as shown in FIG. 1, or may have a plurality of branches, for example, a fork or a fork.

The connecting pins 4 according to the present invention are arranged on an extension of the end of the conductive wire 30 when the later-described insertion aid 10 is inserted into the cable 22, and are arranged in parallel with each other. . The number of the connection 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 cable for high piezoelectricity such as three-phase or four-phase.

Next, the gripper 6 according to the present invention is formed of an insulating material and covers the connection pin 4 so as to be connected and held. The insulating material is not particularly limited, and may be appropriately set in consideration of various conditions. Further, the outer periphery of the grip 6 may be covered with vinyl or rubber.

The shape of the grip 6 may be, for example, a columnar shape or a prismatic shape, and may be any shape. Further, a guide groove 8 as shown in FIG. 1 may be formed. The guide groove 8 is formed in a size that can be engaged with a mounting bracket 20 described later. The tip of the connection pin 4 protrudes from the end of the grip 6.

In addition, a wall 36 is formed in the gripper 6 according to the present invention. The wall body 36 is provided on the outer periphery of the connection pin 4 that is connected and held by the grip portion 6. The wall 36 may be cylindrical or rectangular, and may have any shape. Further, the wall 36 may be formed higher or lower than the tip of the connection pin 4 described above, and may be set as appropriate.

Further, at least one window 38 may be formed in the wall 36. The position and shape of the window 38 are not particularly limited. However, by forming the window 38 in the vicinity of the holding portion and the fixed portion of the six-walled body 36, it is necessary to confirm that the cable 22 is completely inserted. Can be.

Further, a confirmation lamp may be attached to the grip 6. The confirmation lamp may have a simple structure such as connecting to the connection pin 4 and connecting the cable 22 to turn on the lamp when electricity flows. By attaching this confirmation lamp, it can be used not only for checking the energized state of the cable 22 and the cable connector 2 but also for checking the leakage of the cable 22 after installation and the cutting state inside the cable.

The confirmation lamp can be of any type, for example a light emitting diode. In addition, not only one but also a plurality may be installed, and the installation position may be set as appropriate.

Next, FIG. 2 is a perspective view and a plan view showing the insertion aid 10 according to the present invention. The insertion aid 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 of the partition member. The material of the insertion aid 10 may be, for example, vinyl chloride or polyethylene, and may be appropriately set in consideration of various conditions.

As shown in FIG. 2, the partition plate 12 of the insertion assisting tool 10 has radially extending partition plates 12 arranged at substantially equal angles. The partition plate 12 is fixed at the center, and the tip of the center is preferably raised so that it can be easily inserted into the cable 22.

When the insertion aid 10 according to the present invention is inserted into the cable 22, the partition plates 12 enter between the conductive wires 30, so that a plurality of conductive wires 30 are provided one by one between the respective partition plates 12. Fixed. The number of the partition plates 12 can be adjusted according to the number of the conductive wires 30 in the cable.

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

The bottom plate 16 has a hole 18 through which the connection pin 4 can pass. The holes 18 are formed one by one between the partition plates 12 described above, and are located on the extension of the end of the conductive wire 30 when the insertion aid is inserted into the cable 22. Therefore, when the insertion aid 10 according to the present invention 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 pins 4 are passed through the holes 18 in the bottom plate 16, the connection pins 4 can be automatically inserted into the conductive wires 30.

Next, the mounting bracket 20 according to the present invention is characterized in that the outer periphery of the end of the cable 22 into which the connection pin 4 is inserted is tightened. The mounting bracket 20 may have any shape and structure. For example, as shown in FIG. 1, a structure that engages with the above-described guide groove 8 of the grip portion 6 may be used. Further, a plurality of protrusions may be provided on the inner side surface of the mounting bracket 20.

In the cable connector 2 according to the present invention, the above-mentioned components may be formed integrally, or may be separable.

Here, the general cable 34 is housed in the cable 34 while the covered electric wire 38 makes a gentle turn. Therefore, the connection pin 4 according to the present invention, the through hole 22 of the insertion aid 14, the guard piece 18, the partition plate 16 and the like are formed into a shape (not shown) corresponding to the rotation of the covered electric wire 38 in the cable 34. Is also good. By making the above-described parts correspond to the turning of the insulated wire 38, the connection pin 4 and the insertion aid 14 can be easily inserted into the cable 34. In addition, since the connection pin 4 and the insertion aid 14 cannot be removed unless they are turned, the cable 34 is not easily removed.

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

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

Next, an outline of the connecting and branching operation using the cable connector 2 according to the present invention will be described. First, the end of the cable 22 to be connected is cut at right angles to the side 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 enters between the conductive wires 30 in the cable, and the conductive wires 30 are separately separated and fixed by the partition plate 12. After inserting the insertion aid 10 until the end of the cable contacts the bottom plate 16 of the insertion aid 10, the connection pin 4 is passed through a hole formed in the bottom plate 16 and the connection pin 4 is inserted. 2 and the cable 22 are electrically connected. Thereafter, the other cable 22 is similarly inserted into the cable connector 2 and then attached to the mounting bracket 20, whereby the cable 22 and the cable connector 2 can be connected so as not to be easily pulled out.

[0038]

[Effect of the invention]

 The cable connector according to the present invention includes at least a connection pin and a grip portion, and inserts and connects the distal end portion of the connection pin to a conductive wire in the cable.Therefore, there is no need to slip the sheath and insulator of the cabtire cable, Work efficiency can be greatly increased.

In addition, since the sheath and the insulator of the cable can be connected without slipping, debris of the sheath and the insulator does not occur, and the work site can be kept clean.

Further, the cable connector according to the present invention includes a plug-in aid having a plurality of partition plates and a bottom plate fixed to the partition plate, and when the plug-in aid is inserted into the cable, the partition plate is provided. The conductive wire in the cable is fixed at a predetermined position, and a hole through which the connection pin penetrates is formed in advance on the bottom plate on the extension of the fixed position of the conductive wire. Just by penetrating, it can be connected to the conductive wire.

[0041] In the plug-in aid according to the present invention, the connecting pin, the through hole of the plug-in aid, the guard piece, the partition plate, and the like have a shape corresponding to the rotation of the covered electric wire in the cable. It is easy to insert a cable of any internal structure, and it is difficult for the cable to be easily pulled out of the insertion aid.

[0042] In the insertion aid according to the present invention, since the upper edge of the wall formed in the grip portion is formed higher than the tip of the connection pin, impact or external pressure is reduced. The product life can be extended regardless of the connection pin.

[0043] Further, since the insertion aid according to the present invention has a window formed in the wall, it is possible to easily grasp the insertion state of the cable, and to prevent poor contact due to halfway insertion. Accidents can be prevented.

[Brief description of the drawings]

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

FIG. 2 is an explanatory view showing the insertion aid according to the present invention;

FIG. 3 is a partial cross-sectional view illustrating a connection state of the cable connector according to the present invention.

FIG. 4 is an explanatory view showing an auxiliary tool according to the present invention.

[Explanation of symbols]

 2 Cable Connector 4 Connection Pin 6 Grip 8 Guide Groove 10 Insertion Aid 12 Partition Plate 14 Guard Piece 16 Bottom Plate 18 Hole 20 Mounting Bracket 22 Cable 24 Insulated Wire 26 Sheath 28 Insulator 30 Conductive Wire 32 Cover Member 34 Auxiliary Tool 36 wall 38 window

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Chen Kaigi 8-6-12 Nishigotanda, Shinagawa-ku, Tokyo 5th Kanto-so 208

Claims (3)

[Utility model registration claims] 1. A cable connector for electrically connecting adjacent cables, wherein the cable has a plurality of covered wires, and a plurality of connection pins inserted into ends of each covered wire of the cable; An insulating grip for connecting and holding the plurality of connection pins, an insertion aid inserted between conductive wires in the coated electric wire of the cable, and an outer periphery of an end of the cable into which the connection pins are inserted Each end of the connection pin is pointed, each end of the connection pin projects from the grip portion, and each end of the plurality of connection pins is substantially spaced at a predetermined interval. A wall body is provided on the grip portion, and the insertion aid is provided with a partition member including one or more partition plates, a bottom plate fixed to a base end of the partition member, and the partition plate. And a guard piece provided in the partition plate. Are radially arranged at approximately equal angles,
A hole through which the connection pin penetrates is formed in the bottom plate, a hole in the bottom plate is formed one by one between the partition plates, and the inside of the covered electric wire when the insertion aid is inserted into the cable. The connecting pin, the through hole of the insertion aid, the partition plate, and the guard piece are formed on the extension of the end of the conductive wire, and are formed in a shape corresponding to the turning of the coated electric wire in the cable. A cable connector characterized by the above-mentioned. 2. The cable connector according to claim 1, wherein a tip of the connection pin is lower than an upper edge of the wall. 3. The cable connector according to claim 1, wherein at least one window is formed in the wall.