JPH0231734Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a terminal device that can be used both for connecting core wires of parallel lines and for connecting coaxial lines terminated with pin plugs.

(Prior Art) In audio equipment and the like, lines are connected by pairing a positive line and a ground line.
In this case, there are two ways to connect the positive line and the ground line: parallel lines are used with the core wires at the ends exposed as they are, and coaxial lines are used and the ends are terminated with pin plugs.

For this reason, in conventional equipment, it was necessary to provide two types of terminals in advance: a pair of terminals for connecting the core wires of parallel lines and a terminal for connecting pin plugs.

(Problems to be Solved by the Invention) However, if two types of terminals are provided in advance in the device for connection between the positive line and the ground line, there is a problem in that the cost increases. In addition, there was a problem in that it was necessary to secure a correspondingly large installation space for the equipment.

An object of the present invention is to provide a terminal device in which both the core wire of a parallel line and a pin plug can be connected to the same terminal.

(Means for Solving the Problems) The structure of the present invention for achieving the above objects will be explained with reference to FIGS. 1 to 4 corresponding to the embodiments. A positive insulating cylindrical portion 2 and a grounding insulating cylindrical portion 3 are provided upright, and the positive insulating cylindrical portion 2 has a plug insertion hole 2A at its top.
is open, and a positive contact 4 is housed inside with the connecting ring portion 4A facing the entrance thereof, and a core wire insertion hole 5 is provided in the middle of the positive side insulating cylinder portion 2 in an intersecting direction, A core wire connection hole 6 of the positive contact 4 is provided facing the entrance of the core wire insertion hole 5, and the positive side insulating cylindrical portion 2
A core wire holding nut 8 is screwed onto the outer periphery of the positive side insulating cylindrical portion 2, a grounding metal fitting 9 is attached to the outer periphery of the tip of the positive side insulating cylindrical portion 2, an earth contact 10 is accommodated in the above-mentioned earth side insulating cylindrical portion 3, and the A core wire insertion hole 11 is provided in the middle of the earth side insulating cylindrical portion 3 in an intersecting direction, and a core wire connection hole for the earth contact 10, which is not shown in the drawing, is provided facing the entrance of the core wire insertion hole 11. A core wire holding nut 13 is screwed onto the outer periphery of the earth-side insulating cylindrical portion 3, and the earth fitting 9 is electrically connected to the earth contact 10.

(Function) In the case of connecting the core wires of parallel lines, such a terminal device inserts the corresponding core wires into the core wire connection hole 6 of the positive contact 4 and the core wire connection hole of the earth contact 10, and holds each core wire holder. By tightening the nuts 8 and 13, the contacts 4 and 10 are pressed against the core wire connection holes to establish an electrical and mechanical connection. The connection of the pin plug 17 of the coaxial line is achieved by fitting the plug contact 18 of the pin plug 17 into the connecting ring portion 4A of the positive contact 4 in the positive side insulating cylinder portion 2, and connecting the pin plug 17 to the ground cap 19 of the pin plug 17. is placed over the grounding fitting 9 and connected. Earth fitting 9
is connected to the ground contact 10 in advance, so the ground cap 1 is connected to the ground contact 10 side.
There is no need to connect 9. As described above, according to the present invention, both the connection of the core wire of a parallel line and the connection of a pin plug that terminates a coaxial line can be shared by a pair of terminals.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to FIGS. 1 to 4. The terminal device of this embodiment has an insulating base 1 on which a positive side insulating cylindrical part 2 and a grounding side insulating cylindrical part 3 are erected. A plug insertion hole 2A is opened at the top of the positive side insulating cylindrical portion 2, and a positive contact 4 is housed inside the plug insertion hole 2A with a connecting ring portion 4A facing the entrance thereof. A core wire insertion hole 5 is provided in the middle of the positive side insulating cylindrical portion 2. The positive contact 4 is bent in the middle so as to face the entrance of the core wire insertion hole 5, and a core wire connection hole 6 is provided in the midway portion of the positive contact 4 facing the entrance of the core wire insertion hole 5. A core wire holding nut 8 is screwed into the threaded portion 7 on the outer periphery of the positive insulating cylindrical portion 2, and a grounding fitting 9 is attached to the outer periphery of the tip of the positive insulating cylindrical portion 2.

There is a ground contact 1 inside the insulating cylinder part 3 on the ground side.
0 is stored. A core wire insertion hole 11 is provided in the middle of the earth side insulating cylindrical portion 3. Ground contact 10 facing the entrance of core wire insertion hole 11
is bent in the middle, and the above-mentioned positive contact 4 is located in the middle of the earth contact 10 facing the entrance of the core wire insertion hole 11, although it is not shown in the drawing.
Core wire connection holes are provided in the same manner as in the above. A core wire holding nut 13 is screwed into a threaded portion 12 on the outer periphery of the earth side insulating cylindrical portion 3. The grounding fitting 9 of the positive side insulating cylindrical portion 2 is connected to this grounding contact 1.
electrically connected to 0.

In such a terminal device, as shown in FIGS. 2 and 4, when connecting a pin plug 17 terminated with a coaxial line 16 having a positive line 14 and a ground line 15 made of a braided shield, When the plug contact 18 of the pin plug 17 is inserted into the positive side insulating cylindrical portion 2 through the plug insertion hole 2A, the plug contact 18 is fitted into the connecting ring portion 4A of the positive contact 4, and an electrical and mechanical connection is established. . Also,
The ground cap 19 of the pin plug 17 is fitted into the ground fitting 9 to establish an electrical connection.

In addition, in the case of connecting the core wires of parallel lines, the third
As shown in the figure, the core wire 2 of the positive line cord 20
When connecting 0A, insert the core wire 20A into the core wire connection hole 6 in the middle of the positive contact 4,
When the core wire holding nut 8 is tightened, the core wire 20A is pressed against the edge of the core wire connection hole 6 by the nut 8, and an electrical and mechanical connection is established. Although not shown, the core wire of the ground line cord is connected to the ground contact 10 in the same manner.

(Effect of the invention) As explained above, in the terminal device according to the invention, of the positive side insulating cylinder part and the ground side insulating cylinder part provided on the insulating base, the positive side insulating cylinder part has a grounding metal fitting on the outer periphery of the tip. Since a positive contact connecting ring portion is provided inside the positive contact ring portion, the plug contact of the pin plug and the earth cap can be connected by using this positive side insulating cylinder portion. In addition, core wire insertion holes are provided in the middle of the positive side insulating cylindrical part and the ground side insulating cylindrical part in the intersecting direction, and each core wire of each positive contact and the earth contact is connected by facing the entrance of these core wire insertion holes. Since a hole is provided and a core wire holding nut is screwed onto the outer periphery of each insulating cylindrical portion, the core wires of parallel lines can be easily connected. Therefore, according to the present invention, both the pin plug that terminates the coaxial line and the core wire of the parallel line can be connected with a pair of terminals, and costs can be reduced.
Moreover, it is easy to secure the installation space. Furthermore, since the earthing metal fitting is connected to the earthing contact, there is an advantage that the earthing connection can be made at the same time by connecting the plug only to the positive insulating cylindrical part.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of both the positive side and ground side parts of the terminal device according to the present invention, and Figs. 2 and 3 show the connection state of the pin plug and the core wire of the parallel line to the positive side part of this terminal device. FIG. 4 is a longitudinal cross-sectional view of a coaxial line terminated with a pin plug. 1...Insulating base, 2...Positive side insulating cylinder part, 2
A...Plug insertion hole, 3...Ground side insulating cylinder part,
4... Positive contact, 4A... Connection ring portion, 5... Core wire insertion hole, 6... Core wire connection hole, 8...
...Core wire holding nut, 9...Grounding metal fitting, 10...
Earth contact, 11... Core wire insertion hole, 13...
... Core wire holding nut, 14 ... Plus line, 15
...Earth line, 17...Plug, 18...Plug contact, 19...Earth cap, 20
...Positive line cord, 20A... Core wire.

Claims (1)

[Scope of utility model registration request] A positive side insulating cylindrical part and a grounding side insulating cylindrical part are erected on the insulating base, and the positive side insulating cylindrical part has a plug insertion hole opened at the top, and a connecting ring part is exposed inside the inlet. A positive contact is accommodated therein, core wire insertion holes are provided in the middle of the positive side insulating cylindrical portion in intersecting directions, a core wire connection hole of the positive contact is provided facing the entrance of the core wire insertion hole, and a core wire connection hole of the positive contact is provided facing the entrance of the core wire insertion hole. A core wire holding nut is screwed onto the outer periphery of the positive side insulating cylindrical portion, a grounding fitting is attached to the outer periphery of the tip of the positive side insulating cylindrical portion, and an earth contact is accommodated in the grounding side insulating cylindrical portion, A core wire insertion hole is provided in the middle of the side insulating cylindrical portion in an intersecting direction, a core wire connecting hole of the earth contact is provided facing the entrance of the core wire insertion hole, and a core wire connecting hole of the earth contact is provided on the outer periphery of the earth side insulating cylindrical portion 1. A terminal device, wherein a core wire holding nut is screwed together, and the grounding fitting is electrically connected to the grounding contact.