JPH05129052A - Connecting cord - Google Patents

Abstract

PURPOSE:To provide a connecting cord by which twists caused probably when mutual measuring instruments and so on are connected to each other can be prevented. CONSTITUTION:There are provided gland contact bodies 5a and 5b to be brought into contact with gland coatings 2. A signal contact body 6 is provided inside of one gland contact body 5a through an insulating body 3, and an internal signal contact body 7 is provided so as to be brought into contact with this contact body 6 through a spring 8, and a projecting shape signal contact body 11 is also provided inside of the other gland contact body 5b. Nuts are provided in the gland contact body 5b through metal balls 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting cord for connecting measuring instruments and the like, and more particularly to a connecting cord for coaxial cables.

[0002]

2. Description of the Related Art A conventional connecting cord for connecting a measuring instrument or the like has a structure in which non-rotatable connectors are attached to both ends of a coaxial line, and the coaxial line and the connector are completely fixed.

[0003]

In the conventional connecting cord, when the measuring instruments and the like are connected to each other, the connecting cord is twisted depending on the state of the initial connecting cord and the usage of the measuring instrument. Rotate the instrument to fix it,
Alternatively, it is troublesome that the twist must be removed from the measuring instrument via the connection cord.

In a place where many connecting cords intersect,
In some cases, this connection cord may be mistakenly recognized and dangerous.

It is an object of the present invention to provide a twist-free connection cord and to provide a complete experimental environment.

[0006]

The connection cord of the present invention comprises:
In order to prevent twisting, one ground contact body that comes into contact with the ground of the coaxial line and has a threaded portion on the outer circumference, and a nut that comes into contact with the ground of the coaxial line and is screwed with the one ground contact body on the outer circumference are metal. The other ground contact body attached via a sphere, a signal contact body disposed inside the one ground contact body and contacting a signal line of a coaxial line, and the signal contact body were connected via a spring. An internal signal contact body, a protruding contact body disposed inside the other ground contact body and contacting the internal signal contact body, between the one ground contact body and the connection signal contact body, and the other of the other. The rotary connector is provided between the ground contact body and the protruding contact body, and includes an insulator for insulating these contact bodies,
This rotary connector is attached in the middle or one end or both ends of the coaxial wire.

[0007]

The present invention will be described below with reference to the drawings.

FIG. 1A is a developed sectional view of an embodiment of the present invention, and FIG. 1B is a sectional view showing an assembled state.

In the figure, a coaxial wire includes a coaxial wire coating 1, a ground coating 2 disposed inside the coaxial wire coating 1,
It is composed of an insulator 3 arranged inside the ground line 2 and a signal line 4 arranged at the center.

One of the ground contact bodies 5a has a threaded portion formed on the outer periphery thereof and is in contact with the ground coating 2 of the coaxial wire. Similarly, the other ground contact member 5a is in contact with the ground coating 2 of the coaxial line. These ground contacts 5
Each of a and 5b is formed of a conductor.

A signal contact 6 is disposed inside the ground contact 5a via an insulator 3, and the signal contact 6 is in contact with the signal line 4 which is a coaxial line. An internal signal contact body 7 biased outward by a spring 8 is disposed on one side of the signal contact body 6. These signal contact body 6, internal signal contact body 7, and spring 8 are each formed of a conductor.

A nut 9 made of a conductor is provided on the outer circumference of the ground contact body 5b.
A plurality of metal balls 10 are arranged between the ground contact body 5b and the ground contact body 5b. In addition, the insulator 3 is provided inside the ground contactor 5b.
A protruding contact body 11 formed of a conductor is provided via the through contact, and the protruding contact body 11 is in contact with the signal line 4 of the coaxial line.

The signal contact 4 and the protruding contact 11 are brought into contact with the coaxial signal line 4, and the ground contacts 5a and 5b are brought into contact with the ground coating 2, respectively.
It is possible to fix one rotary connector member and the other rotary connector member to different ends of the coaxial line by crimping from the outside of the ground contact bodies 5a and 5b with crimping pliers. Then, by screwing the nut 9 attached to the other ground contact body 5b into the threaded portion of the one ground contact body 5a, the rotary connector shown in FIG. 1B can be assembled.

In such a rotary connector, the signal system and the ground system are completely insulated by the insulator 3.
The signal from one signal line 4 is transmitted from the signal contact 6 to the spring 8,
It is transmitted to the other signal line 4 through the internal signal contact body 7 and the protruding contact body 11. Further, one ground coating 2 is connected to the other ground coating 2 through the ground contact body 5a, the nut 9, the metal ball 10, and the ground contact body 5b.

When rotating the rotary connector, when the ground contact body 5a or the ground contact body 5b is rotated, the ground contact body 5a and the nut 9 are fixed to each other, but the ground contact body 5b is fixed to the nut 9. It is possible to rotate inside. At this time, since the internal signal contact body 7 is biased by the spring 8 toward the protruding contact body 11 side, contact failure does not occur in these contact bodies 7, 11.

FIG. 2A is an exploded sectional view of another embodiment of the present invention, showing a state in which a rotary connector is attached to one side or both sides of the coaxial line, and the connector and the coaxial line are not connected. Shows. FIG. 2B is a sectional view of the assembled state. In the figure, the same parts and parts having the same functions as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted.

When a rotary connector is attached to one side or both ends of the coaxial line, as shown in the figure, one end of one connector member, that is, the end of the signal contact member 6 has a normal connector matching the connector of the measuring instrument. 12 are formed. Therefore, the rotary connector can be connected to a measuring instrument (not shown) via the connector 12.

[0018]

As described above, according to the present invention, since the connecting cord is formed by using the rotary connector in place of the conventional fixed connector, no troublesome operation is required to correct the twist of the connecting cord, Further, there is an effect that it is possible to prevent misidentification of wiring due to twisting.

[Brief description of drawings]

FIG. 1 shows a connection cord according to an embodiment of the present invention, (A) is a developed sectional view, and (B) is a sectional view showing an assembled state.

FIG. 2 shows a connection cord of another embodiment of the present invention, (A) is a developed sectional view, and (B) is a sectional view showing an assembled state.

[Explanation of symbols]

 1 Coaxial Wire Cover 2 Ground Cover 3 Insulator 4 Signal Line 5a, 5b Ground Contact Body 6 Signal Contact Body 7 Internal Signal Contact Body 8 Spring 9 Nut 10 Metal Ball 11 Protruding Contact Body 12 Connector

Claims (3)

[Claims] Claim: What is claimed is: 1. One ground contact body, which is in contact with the ground of the coaxial wire and is provided with a threaded portion on the outer circumference, and a nut, which is in contact with the ground of the coaxial wire and is screwed with the one ground contact body, on the outer circumference. The other ground contact body attached via
A signal contact body disposed inside the one ground contact body and contacting a signal line of a coaxial line, an internal signal contact body connected to the signal contact body via a spring, and the other ground contact body. A protrusion-shaped contact body disposed inside and in contact with the internal signal contact body, and arranged between the one ground contact body and the signal contact body and between the other ground contact body and the protruding contact body. A connecting cord, wherein a rotary connector, which is provided and has an insulator for insulating these contact bodies, is attached in the middle of a coaxial wire. 2. A gland contact body having a threaded portion on its outer circumference, and another gland having a nut that is in contact with the gland of the coaxial wire and screwed with the one gland contact body on the outer circumference through a metal ball. A contact body, a signal contact body disposed inside the one ground contact body and having a connector for connecting to a measuring instrument at an end thereof, and an internal signal contact body connected to the signal contact body via a spring A protrusion-shaped contact member disposed inside the other ground contact member and contacting the internal signal contact member, between the one ground contact member and the signal contact member, and between the other ground contact member and the protrusion A connecting cord, wherein a rotary connector, which is arranged between the contact members and is insulated from the contact members, is attached to one end of the coaxial wire. 3. A gland contact body having a threaded portion on the outer circumference, and another gland having a nut that is in contact with the ground of the coaxial wire and screwed with the one gland contact body on the outer circumference via a metal ball. A contact body, a signal contact body disposed inside the one ground contact body and having a connector for connecting to a measuring instrument at an end thereof, and an internal signal contact body connected to the signal contact body via a spring Connection, a protrusion-shaped contact body disposed inside the other ground contact body and contacting the internal signal contact body, between the one ground contact body and the signal contact body, and between the other ground contact body and the protrusion A connecting cord in which rotary connectors each of which is arranged between the contact members and an insulator for insulating these contact members are attached to both ends of the coaxial wire.