JP2568405B2 - Multi-pair connector for cable - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a multi-pair connector for a cable such as a communication cable, and more particularly to a male-female (Sexless type) connector.

<Conventional Technology> In a communication line, a communication cable composed of a core wire having several pairs to several thousands pairs is used.

In the case of such a communication cable having a large number of core wires, from the viewpoint of workability at the time of facility and convenience of maintenance, inspection or repair, etc.,
In many cases, a connection section is provided for each section as appropriate.

Conventionally, when forming this connection portion, generally, the core wire of one cable to be connected and the core wire of the other cable are led out by a connecting machine or an appropriate tool to remove the insulator. , Core wire conductors were brought together and connected.

<Problems to be Solved by the Invention> However, in this close connection method, when the number of core wires increases, this connection operation requires a long time, and the workability is extremely poor.

Particularly, in recent years, the transition to the advanced information society has led to a remarkable increase in the number of information lines, and the number of cable cores has also increased dramatically. For this reason,
The conventional connection method has a serious problem in that it cannot quickly respond to replacement or switching in an emergency or the like.

The present invention has been made in view of such a conventional situation, and even in a cable having hundreds to thousands of core wires, a multi-pair for a cable that can easily and quickly form a connection portion. Provide connectors.

<Means for Solving the Problems> The feature of the present invention is that the cutting groove 4 for embedding the core wire is used.
Extending from a female contact A having a bifurcated contact portion 2 bent substantially at right angles to the terminal portion 1 provided with the terminal portion 5 and a terminal portion 5 provided with a cutting groove 7 for embedding a core wire. A plurality of male contacts B having a plate-shaped or rod-shaped contact portion 6;
Male / female alternately and the bifurcated contact portions 2 of the female contacts A are made perpendicular to the arrangement direction of the contact rows, and the contact portions 6 of the male contacts B are made in the same direction as the arrangement direction of the contact rows. By being implanted in the box I, the terminal portions 1 of the female contacts A are arranged in the same direction as the arrangement direction of the contact rows and at one corner of the contact portion 2 while the male contacts B are arranged. The terminal part 5 is a multi-pair connector for cables arranged between the forked contact parts 2 of the female contact A and shifted from the terminal part 1 of the female contact A.

<Operation> According to this connector, the male and female contacts A,
From the shape of B, a large number of contacts A and B can be implanted in a small space, and a connector of the same gender can be obtained by the arrangement method of both contacts A and B.

<Example> Fig. 1 shows a multi-pair connector for a cable according to the present invention, Fig. 2 shows both male and female contacts, and Fig. 3 shows an example of an arrangement method of both contacts. It is.

First, the female contact A of the present invention is formed from a single metal plate, and as shown in FIG.
On the other hand, the contact portion 2 at the lower end is formed to be bent substantially perpendicularly. The contact portion 2 has a bifurcated shape (tuning fork shape) whose substantially central portion is cut downward, and has semicircular protrusions 3, 3 provided on the inside facing the tip. Due to the bifurcated shape, the contact portion 2 is given an appropriate elasticity. The shapes of the projections 3, 3 are not limited to this. Further, the terminal portion 1 is provided with a cut groove 4 for embedding a core wire, which is opened on the upper surface.

On the other hand, the male contact B of the present invention is also formed of a single metal plate, and a flat contact portion 6 extends from a flat terminal portion 5 at the lower end as shown in FIG. The contact portion 6 is a portion which is inserted between the bifurcated contact portions 2 of the female contact A and is clamped during use. This contact part 6
In addition to the shape of a single plate, it is also possible to form a bar by stacking the number of plates by folding or the like. The terminal portion 5 has a notch 7 for embedding a core wire, which is also opened on the lower surface.
Is provided.

The metal material of each of these contacts A and B is not particularly limited, but copper, phosphor bronze, or the like is preferable from the viewpoint of conductivity, springability and corrosion resistance of the bifurcated portion, etc. The contact parts 2, 3 and the cutting grooves 4, 7 of the terminal parts 1, 5
To improve conductivity, gold, nickel,
It is preferable to perform plating of chromium, tin, solder, or the like.

Female and male contacts A, B
Are implanted in the insulating box I of FIG. 1, for example, in the arrangement shown in FIG.

That is, the contact portions 2 of the female contacts A are arranged at substantially regular intervals in the longitudinal direction of the insulating box I, and the contact portions 6 of the male contacts B are arranged at equal intervals.
The plane direction is arranged in accordance with the longitudinal direction of the insulating box I.

According to this arrangement method, the terminal portions 1, 5 of the contacts A and B
The plane direction of the cable C is aligned with the longitudinal direction of the insulating box I, and is slightly displaced with respect to the width direction of the insulating box I, so that the connection of the core wire 8 of the cable C can be easily performed. In addition, this arrangement makes it possible to reduce the size of the insulating box I.

As shown in FIG. 1, this insulating box I has two structures having the same target shape and can be fitted to each other.
First, the terminals 1 and 5 of the implanted contacts A and B are exposed on the bottom surface of the insulating box I. These exposed terminals 1,5
Is preferably provided with a protective frame 9 on the side edge. On the other hand, on the fitting side of this insulating box I, partition plates 10 for separating the contact portions 2, 6 of the contacts A, B are formed at equal intervals in approximately half of the portion, and the remaining portions are formed. Of the other insulating box I to be fitted in use at the time of use.
Are inserted into the insertion frame portion 12 having guide grooves 11.

The insulating box I is made of a plastic such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, polyamide, polyester, polycarbonate, polysulfone or the like in consideration of mechanical strength, electrical characteristics, moldability, durability and the like. It is good to mold with a polymer or the like.

When two insulating boxes I having this structure are positioned as shown in FIG. 1 and fitted together, the partition plate 10 of one box I is inserted into the other box I. At the same time as fitting into the frame portion 12, the partition plate 10 of the other box I is
, A firm and stable fitting state can be obtained.

On the other hand, due to the fitting of the insulating boxes I and I, in the contact portions 2 and 6 of the contacts A and B implanted therein, the female forked contact portion 2 enters. Since the coming male plate-like contact portion 2 is sandwiched by its elasticity, an extremely stable electrical connection can be obtained.

Further, in the case of the present invention, the connection of the cable core wires 8 to the terminal portions 1 and 5 of the contacts A and B only needs to press-fit the core wires 8 with the insulation coating into the cut grooves 4 and 7. By this press-fitting, the insulating coating is cut and the core conductor and the terminal portions 1 and 5 are connected. That is, the operation of leading the core wire 8 is unnecessary.

In this embodiment, the arrangement of the contacts A and B is the arrangement method shown in FIG. 3, but the present invention is not limited to this. Further, the partition plate 10... And the insertion frame portion 12 are provided in half on the fitting side of the insulating box I, but the present invention is not limited to this, and may be further subdivided. However, there is no relationship between the same object shapes, but it is also possible to adopt a structure in which one of the boxes I is provided with only the partition plates 10 and the other is provided with only the insertion frame 12. .

Further, although not shown, the fitted insulating boxes I,
It is also possible to provide a lock mechanism for locking the fitting state between I if necessary.

<Effects of the Invention> As is clear from the above description, according to the multi-pair connector for a cable according to the present invention, the following excellent effects can be obtained.

. Basically, there are only two types of contacts, male and female contacts A and B. In addition, in forming them, it can be easily manufactured only by punching or bending a metal plate. Therefore, cost can be reduced.

. By arranging these contacts A and B alternately for male and female, first, the number of contacts per unit area can be greatly increased.

In addition, at this time, the arrangement line of the terminal portion 1 of the female contact A and the arrangement line of the male contact B are shifted from each other, so that the entire connector can be reduced in size and space.

. Also, the terminal portions 1, 5 of both types of contacts A, B
Are shifted from each other, so that when the core wire is connected, the terminals 1 and 5 can be wired smoothly without interfering with each other.

. Furthermore, the terminal portions 1, 5 of the two types of contacts A, B
Are provided with notches 4 and 7 so that the coated core wire 8 is inserted and press-fitted, so that it can be easily and quickly connected to the internal conductor.

. Furthermore, since the male and female alternate arrangement of both types of contacts A and B can form a contact row that can be fitted to each other, it is possible to provide a male and female identical (Sexless type) connector. Therefore, it is sufficient that the insulating box I for planting the contact has only one kind of the same target shape, and the cost can be reduced in this aspect as well.

. In addition, since the connection and disconnection of the connector can be performed by simply attaching and detaching the insulating boxes I and I, even in the case of a large-capacity communication cable or the like, it is possible to respond quickly in an emergency or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a multi-pair connector for cables according to the present invention, FIG. 2 is a perspective view showing one example of male and female contacts used in the present invention, and FIG.
The figure is a perspective view showing one example of a method for arranging male and female contacts in the present invention. In the figure, A: female contact, B: male contact, C: cable, I: insulating box, 1 ... terminal, 2 ... bifurcated contact, 3 ... protrusion, 4 … Cut groove, 5… terminal part, 6… contact part, 7… cut groove, 8… core wire, 10… partition wall plate, 11… guide groove, 12… insertion frame part,

Continuation of the front page (72) Inventor Noriaki Yamamoto 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. JP, Y2)

Claims (1)

(57) [Claims] 1. A female contact A having a bifurcated contact portion 2 bent at a substantially right angle with respect to a terminal portion 1 provided with a groove 4 for embedding a core wire. A plurality of male and female contacts B having a plate-shaped or rod-shaped contact portion 6 extending from the terminal portion 5 provided with the groove 7 are alternately male / female and the forked contact portion of the female contact A. 2 are arranged in a direction perpendicular to the arrangement direction of the contact rows, and the contact portions 6 of the male contacts B are set in the same direction as the arrangement direction of the contact rows. The portion 1 is arranged in the same direction as the arrangement direction of the contact row and at one corner of the contact portion 2, while the terminal portion 5 of the male contact B is provided with the bifurcated contact portion of the female contact A. 2 and displaced from the terminal portion 1 of the female contact A. Many-to-cable connector, wherein the door.