JPH035109Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a coaxial plug that is inserted into the jack of public listening equipment such as a television signal splitter or branch, and particularly relates to a coaxial plug that can be easily connected to a coaxial cable. Regarding coaxial plugs that can be used.

(Technical background of the invention and its problems) Conventionally, as shown in Fig. 3, a coaxial plug 30
includes a hollow cylindrical outer conductor 31, a pair of legs 35 integrally formed with the outer conductor 31,
It is composed of a pair of connecting parts 37 that connect the outer conductor 31 and a pair of legs 35, and an insulator 33 that is inserted into the outer conductor.

To attach such a conventional coaxial plug 30 to the coaxial cable 20, first connect the central cable 21.
The coaxial plug 30 and the coaxial cable 20 are arranged such that the coaxial plug 30 and the coaxial cable 20 are inserted into the insulator 33 and the braided cable 27 is sandwiched between the inner surfaces of the pair of legs 35. Thereafter, the caulking ring 39, which has been previously fitted onto the coaxial cable 20, is moved to the coaxial plug side and placed at a predetermined position on the outer peripheral surface of the pair of legs 35, and a caulking operation is performed. In this manner, the conventional coaxial plug 30 is attached to the coaxial cable 20 by crimping the pair of legs 35, the braided cable 27, and the external insulator 25 together using the crimping ring 39. Note that in FIG. 2, reference numeral 23 indicates an internal insulator.

As described above, in order to attach the conventional coaxial plug 30 to the coaxial cable 20, it is necessary to move the caulking ring 39, which has been fitted onto the coaxial cable 20 in advance, to the coaxial plug 30 side. However, in this moving operation, the caulking ring 39 is moved from the direction opposite to the direction in which the braided cable 27 is folded back on the outer surface of the external insulator 25. There is a problem that moving work becomes troublesome, such as when the tip gets caught. Also, in order to facilitate this movement work, it is conceivable to make the inner diameter of the caulking ring 39 considerably large.
If the caulking ring 39 is made unnecessarily large, there is a problem in that it is difficult to perform caulking work.

Furthermore, when attaching the coaxial plug 30 to the coaxial cable 20, the caulking operation using the caulking ring 39 is generally performed by arranging the caulking ring 39 at a predetermined position on the outer peripheral surface of the pair of legs 35, and pressing it by hand. It is compressed by a machine (not shown). Therefore, this kind of caulking work can be quite dangerous if things go wrong.

[Purpose of invention]

The present invention has been made with these points in mind, and it is an object of the present invention to provide a coaxial plug that can be easily and safely attached to a coaxial cable.

[Summary of the idea]

The present invention provides a coaxial plug having a substantially hollow cylindrical outer conductor and legs connected to a braided cable of a coaxial cable, in which the tips of the legs are bent radially outward, and the ends of the legs are bent radially outward. The coaxial plug is characterized in that a ring is fitted in advance on the outer peripheral surface closer to the outer conductor than the bent tip.

According to the present invention, since the caulking ring is fitted in advance on the outer circumferential surface of the leg and closer to the outer conductor than the bent tip, it is necessary to move the caulking ring from the coaxial cable side to the coaxial plug side. does not require. Furthermore, there is no need to hold down the caulking ring during caulking work. Therefore, it is possible to easily and safely attach the coaxial plug to the coaxial cable.

[Example of idea]

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

1 and 2 are diagrams showing an embodiment of a coaxial plug according to the present invention. In FIG. 1, reference numeral 10 indicates a coaxial plug, and the coaxial plug 10 includes a hollow cylindrical outer conductor 11, and this outer conductor 11.
It consists of a pair of legs 15 formed integrally with the outer conductor 11, a pair of connecting parts 17 that connect the outer conductor 11 and the pair of legs 15, and an insulator 13 inserted into the outer conductor 11. ing.

The tip portions of the pair of leg portions 15 are bent radially outward to form a pair of step portions 15a.
A caulking ring 19 is fitted in advance closer to the outer conductor 11 than a. The caulking ring 19 is fitted by sandwiching the pair of legs 15 inward in the radial direction, and is prevented from coming off by the pair of stepped portions 15a after being fitted. Further, as shown in FIG. 2, a pair of cut-out claws 15b are formed inside the pair of leg parts 15, and the pair of cut-out claw parts 15b allow coaxial movement from the pair of leg parts 15 side. The coaxial cable 20 inserted into the plug 10 is easily inserted and difficult to come out.

A coaxial plug 10 having such a configuration is connected to a central cable 21, an internal insulator 23, and a braided cable 2.
7 and an external insulator 25
0, first insert the center cable 21 into the insulator 13, sandwich the braided cable 27 between the inner surfaces of the pair of legs 15, and attach the coaxial plug 1.
0 and the coaxial cable 20 are arranged. Thereafter, a caulking machine (not shown) is used to attach the caulking rings 19 that have been fitted in advance onto the outer peripheral surfaces of the pair of legs 15.
Compress and swage. By crimping the pair of legs 15, the braided cable 27, and the external insulator 25 together using the crimping ring 19, the coaxial plug 10 is connected to the coaxial cable 2.
Can be attached to 0.

As described above, according to the present invention, the caulking ring 19
is fitted in advance on the outer peripheral surface of the pair of leg portions 15 and closer to the outer conductor 11 than the pair of stepped portions 15a, so that the coaxial plug 10 is connected to the coaxial cable 20.
There is no need to move the caulking ring 19 from the coaxial cable 20 side to the coaxial plug 10 side when attaching it to the coaxial plug 10. Further, when performing the caulking work, since the caulking ring 19 is fitted onto the outer peripheral surfaces of the pair of legs 15, there is no need to hold the caulking ring 19. Furthermore, if the caulking ring 19 is inserted first, it will also prevent the insulator 13 from coming off.

Note that the inner diameter of the caulking ring 19 is the same as that of the pair of legs 1.
If the outer diameter is considerably smaller than the outer diameter of the pair of legs 15, when the caulking ring 19 is fitted onto the outer peripheral surface of the pair of legs 15, the elastic force directed outward in the radial direction of the pair of legs 15 will cause the caulking ring to be more strongly caulked. The ring 19 can be fitted onto the outer peripheral surfaces of the pair of legs 15.

[Effect of idea]

As explained above, according to the present invention, the caulking ring is fitted in advance on the outer peripheral surface of the leg and from the bent tip to the external conductor side, so that the caulking ring can be inserted from the coaxial cable side into the coaxial plug. There is no need to move to the side, and there is no need to hold down the caulking ring during caulking work. Therefore, it is possible to easily and safely attach the coaxial plug to the coaxial cable.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the coaxial plug and coaxial cable according to the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, and Fig. 3 shows a conventional coaxial plug and coaxial cable. FIG. 10...Coaxial plug, 11...Outer conductor, 13
...Insulator, 15...Pair of legs, 15a...Pair of steps, 15b...Pair of cut-out claws, 17
...Pair of connecting parts, 19...Clinching ring, 20
... Coaxial cable, 21 ... Center cable, 23
...Inner insulator, 25...Outer insulator, 27...
Braided cable.

Claims (1)

[Scope of utility model registration request] In a coaxial plug having an outer conductor having a substantially hollow cylindrical shape and legs connected to a braided cable of a coaxial cable, the tips of the legs are bent radially outward, and the ends of the legs are bent outward in the radial direction, and A coaxial plug characterized in that it includes a caulking ring that is attached in advance to a side closer to the outer conductor than the bent tip.