JPH0610637Y2 - Connector plug for cable connection - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION -Industrial field- The present invention relates to the structure of a connector plug used in, for example, a cable of a communication device or a terminal device, and more particularly to a connector plug in which a plurality of cable core wires can be easily attached and detached.

-Prior art-As is well known, in equipment such as telephone devices, for example, multifunctionalization and digital communication are being attempted as seen in button telephone systems and the like, and along with this, downsizing of the equipment is being promoted. The demands are being fulfilled along with the improvement of reliability due to miniaturization of electric parts, that is, LSI implementation.

However, since the connection relay portion of the premises cable of equipment such as a telephone device has a connection structure as shown in FIG. 5 to FIG. 5 described below, a communication control device, a branch box, a terminal device wiring board, etc. It is difficult to achieve downsizing and simplification of connection work. That is, FIG. 5 shows a terminal structure which is often used in a wiring board of a terminal device, and each cable core wire A is individually wound around a corresponding fixing screw C arranged on a terminal board B in a state where the tip coating is peeled off. Attach and tighten the screws to secure. Also, the sixth
The figure shows an example of a wiring box of a branch box for branching a line from a telephone station. A cable core wire A whose tip coating has been stripped is entangled in a holding groove E of a wiring board D, and then a large number of comb terminals F are formed. Solder to the corresponding terminals. FIG. 7 shows a terminal with a slit that does not need to be stripped of the coating. At this terminal G, the cable core wire A which is still coated is hooked at the entrance of the slit H, and a dedicated tool I having a blade i shown in FIG. By acting in the direction of the arrow, the core wire of the cable core wire A is exposed and contacted, and at the same time, the excess tip portion of the cable core wire A is cut.

-Problems to be solved by the invention-However, in these conventional connection structures, since it is necessary to individually connect a large number of cable core wires A of the cable, there is a possibility of erroneous connection, and a screw for connection is required. Even if a special tool such as a driver, a soldering iron, and a special tool I must be used, a troublesome long-time work is inevitable, and reconnection by changing the line is required for the convenience of the user, it is easy. Could not reconnect.
Since these connecting works are individual connecting works on the wiring board, it is necessary to secure a space for the work around the wiring board for the wiring work. However, miniaturization such as is restricted. further,
In these connection structures, the treatment of the insulating coating waste and the tip excess length waste is troublesome.

The purpose of the present invention is to solve the problems of the conventional cable connection structure as described above by connecting a plurality of cable core wires to each other.
Without using a special tool, they can be connected together at the same time, cables can be connected at a position away from the wiring board, etc., reconnecting process is easy, and a small connector plug for cable connection that does not generate cutting waste etc. is obtained. It is in.

-Means for Solving the Problems-To achieve this object, the present invention provides a connector plug having a plurality of connection terminals capable of contacting the connection terminals of a connector socket. A bifurcated inner end having opposing blades is formed on one end side, and these bifurcated inner ends are respectively bent at right angles to be exposed on the side surface of the connector base, and the same from the side surface direction of the connector base. A plurality of insertion holes into which the coated cable core wires can be inserted respectively are formed on the end surface of the connector cover that is assembled to the connector base, and the insertion end portion of the cable core wire at the time of assembly is formed into the forked inner end portion. The inner surface pressing portion to be pushed into the connector is provided on the surface of the connector cover facing the connector base, and the connector is provided on a part of the outer surface to be inserted into the connector socket. The invention proposes a connector plug for cable connection in which an engaging projection that engages with a socket and an uneven portion that is used at the time of inserting / removing the connector socket are formed at right angles to the inserting / removing direction.

-Embodiment- Hereinafter, the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4.

1 to 3 show a connector plug according to the first embodiment which can be connected to a connector socket 2 installed on a printed circuit board 1 of a terminal device, and the connector plugs can be assembled with each other by an insulating resin connector base. 3 and a connector cover 4. That is, the connector base 3 has a hollow plug portion 3a which can be inserted into the insertion opening 2a of the connector socket 2, and the plug base 3a has a plurality of contact pieces 2b arranged in the insertion opening 2a of the connector socket 2. A plurality of connection terminals 5 which can elastically contact each other are accommodated in a state aligned in the width direction. The base 3b of the connector base 3 which opens the surface facing the connector cover 4 has a forked inner end 5a of the connection terminal 5.
Is positioned in a state of being bent at a right angle to the assembling direction of the connector cover 4, and the cable core wire 6 can be received between the opposing blades of each bifurcated inner end 5a insulated by the plurality of partition plates 3c. .

The connector cover 4 that can be fitted into the base portion 3b of the connector base 3 has a plurality of insertion holes 7 into which the tip portions 6a of the corresponding coated cable cores 6 can be inserted. The corresponding cable core wire 6 of the cable whose correspondence is distinguished by the color or pattern of the coating is inserted. The connector cover 4 has the forked inner end 5a.
Has an inner surface pressing portion 4a that forms a groove 8 for receiving the inner surface pressing portion 4a. The inner surface pressing portion 4a receives one side surface of the tip end portion 6a of the cable core wire 6 inserted from the insertion hole 7, and the tip end portion 6a of the cable core wire 6 is When the connector base 3 and the connector cover 4 are assembled in the direction of the arrow in FIG.
By a, it penetrates deeply into the bifurcated inner end 5a, and by this penetration, the coating is cut and the bifurcated inner end 5a and the core wire of the cable core wire 6 are brought into close contact with each other.

Further, the connector base 3 and the connector cover 4 are provided with projections and depressions 3f and 4f so that the fingertips are caught at the time of insertion / removal with the connector socket 2 so that the insertion / removal can be easily performed.
b are formed respectively.

Since the connector plug according to the first embodiment has the above structure, the connector socket 2 can be used in place of the conventional terminal board.
By installing in the terminal board, a plurality of cable core wires 6 can be simultaneously connected to the connector plug without using a special tool. As is clear from FIG. 1,
A locking projection part for locking the locking part 2c of the connector socket 2 on a part of the outer surface 3d of the connector plug 3 inserted into the connector socket 2 so as not to easily come out once inserted. 3e is formed to enhance the coupling between the connector socket 2 and the connector plug 3. Next, the relationship between the connector plug 3 and the connector cover 4 will be described in detail.
In order to process the above, the tip end portion 6a of the corresponding cable core wire 6 is inserted into the insertion hole 7 of the connector cover 4 and the connector base 3 and the connector cover 4 are strongly pressed in the arrow direction of FIG. In this pressing step, as shown in FIG. 3, the cable core wire 6 is pressed in the direction of the arrow by the inner surface pressing portion 4a, but the coating of the cable core wire 6 is automatically performed by the opposing blades of the bifurcated inner end portion 5a. Then, a part of the core wire of the cable core wire 6 is exposed, and the exposed portion is in close contact with the bifurcated inner end portion 5a in a state shown by a virtual line in FIG. Therefore, the simultaneous connection between the plurality of cable core wires 6 and the corresponding connection terminals 5 is completed by the contact between the two-pronged inner end 5a and the exposed core wire of the cable core wire 6, but in the case of reconnection. In order to remove the connector cover 4 from the connector base 3 and move the cable core wire 6 in the direction opposite to the arrow to separate the cable core wire 6 from the connection terminal 5, the new cable new wire 6 can be quickly re-installed. Can be connected. Of course, since these connecting operations are performed outside the branch box or the like, it is not necessary to provide an extra space in the branch box or the like.

FIG. 4 is a sectional view corresponding to FIG. 1 of a connector plug according to a second embodiment of the present invention, and the same structural parts as those in FIG. 1 are designated by the same reference numerals. That is, the base portion 3b of the connector base 3A of this embodiment is bent at a right angle to the plug portion 3a, and the bifurcated inner end portion 5a of the connection terminal 5A is erected at a right angle from the base portion 3b, and the connector cover 4A.
Is assembled in the arrow direction with respect to the connector base 3A. The structure of the other parts is similar to that of the first embodiment.

Therefore, even with the structure of the second embodiment, the first
Needless to say, it is possible to expect the same effects as those of the embodiment.

-Effects of the Invention-As is apparent from the above description, according to the present invention, it is possible to miniaturize a connector plug for simultaneously connecting a plurality of cable core wires, and when connecting the cable core wires to the connector plug, cut scraps and the like are removed. Without occurring, the connection process can be performed outside the equipment quickly and without the need for special tools. In addition, in the connector plug of the present invention, even when reconnecting the cable core wire,
There is also an advantage that the previous cable core wire can be removed and the new cable core wire can be connected quickly without using a special tool. Further, according to the present invention, there is a practical advantage that the insertion / removal operation with respect to the connector socket can be smoothly performed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a connector plug according to a first embodiment of the present invention, FIG. 2 is a sectional view of the connector plug, and FIG. 3 is an explanatory view of connecting terminals of the connector plug and a cable core wire, FIG. 4 is a sectional view corresponding to FIG. 1 of a connector plug according to a second embodiment of the present invention, and FIGS. 5 to 8 are explanatory views of a conventional cable connecting terminal. 3 ... Connector base, 4 ... Connector cover, 5 ... Connection terminal, 5a ... 2 inner ends, 6 ... Cable core wire.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Tsuneharu Kimeda, 2356 Take, 1-chome, Yokosuka City, Kanagawa Nippon Telegraph and Telephone Corporation, Communication Research Laboratory (56) References Open 59-63967 (JP, U) Open 61-8983 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A connector plug having a plurality of connection terminals capable of contacting the connection terminals of a connector socket, wherein a forked inner end portion having a counter blade is formed on one end side of the plurality of connection terminals provided on a connector base. Then, these two-pronged inner end portions are bent at right angles to expose the side surfaces of the connector base, and from the side surface direction of the connector base to the end surface of the connector cover assembled to the connector base,
A plurality of insertion holes into which the coated cable core wires can be respectively inserted are formed, and an inner surface pressing portion that presses the insertion end portion of the cable core wire into the forked inner end portion during assembly is provided on the connector base. An uneven portion that is provided on the opposing surface of the connector cover and that is used at the time of inserting / removing the locking projection and the connector socket that locks the connector socket on a part of the outer surface inserted into the connector socket. A connector plug for connecting a cable, characterized in that