JPH0249663Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a composite plug that can be used, for example, to receive and receive stereo signals, or to receive and receive audio and video signals.

``Prior Art'' Conventional plug-jacks used for receiving and receiving signals are usually of single-piece construction. Therefore, for example
When extracting audio and video signals from a device such as a VTR, two jacks are provided and plugs are connected to and removed from the two jacks separately. In this case, when the plugs connected to the cable are separately attached and detached, the attachment and detachment operations are relatively easy.

``Problems to be solved by the invention'' In order to solve this problem, a small attachment 1 is provided with a plurality of plugs 2 and 3 as shown in FIG. 4, in order to attach the attachment 1, the two plugs 2 and 3 must be aligned and fitted to the jack of the device main body 4, so the spacing between the jacks and the plug must be adjusted. If the spacing does not match exactly, the installation process will be difficult. In particular, when two or more plugs are provided, the installation process becomes even more difficult. In order to enable anyone to easily install the plug, the distance between the two plugs 2 and 3 must be precisely matched with the distance between the jack.

For this reason, high precision is required in manufacturing, resulting in an inconvenience of increased costs.

Furthermore, if the axes of the plugs 2 and 3 do not match the axes of the jack, there is a risk that excessive force will be applied to both the jack and the plug, causing them to break.

The purpose of this invention is to provide a composite plug that can be easily attached and detached without requiring high precision in manufacturing, and in particular can be easily attached even when there are two or more plugs. .

"Embodiment" Figures 1 to 7 show a composite plug according to this invention. In this example, in addition to the two plugs 3A and 3B, a third plug 5 used for power supply, for example, is provided. The plugs 3A and 3B are pin-shaped plugs composed of a conductive pin 2A and a cylindrical ground conductor 2B. The plug 5 is of a type having a plurality of contact portions 5A, 5B on the same axis.

Reference numeral 6 in FIG. 1 indicates a plug body formed of a resin material. This plug body has an elliptical hole and a protrusion 6A around the elliptical hole.

A plug element 7 as shown in FIG. 2 is installed inside the oval hole. This plug element 7 includes a pair of conductive pins 2A, a plug 5, a plate 8 that supports the pair of conductive pins 2A and the plug 5, and a ground cover 9 fitted around the outer periphery of this plate 8. Can be configured.

The plate body 8 is made of a soft resin such as vinyl chloride, and its softness allows the pin 2A and the head of the plug 5 to swing to some extent.

As shown in FIG. 3, flanges 2C and 5C are provided at the bases of the pin 2A and the plug 5, and these flanges 2C and 5C are inserted into the plate 8 to provide installation strength.

A plurality of protrusions 8A are formed on the outer peripheral surface of the plate 8 as shown in FIG.

As shown in FIG. 5, the ground cover 9 is made by bending a band-shaped conductive plate into an elliptical shape and fitting it around the outer periphery of the plate body 8. At this time, a plurality of windows 9A are formed in the earth cover 9, and the protrusions 8A formed on the outer peripheral surface of the plate 8 are engaged with the windows 9A, so that the plate 8 is connected to the earth cover 9.
It has a structure that prevents it from falling out.

The end of the conductive plate constituting the earth cover 9 has a notch formed in the center in the width direction, and is separated into an upper half 9B and a lower half 9C by this notch, and the upper half 9B is bent. A cylindrical ground conductor 2B is formed. A conductive pin 2A is positioned at the center of this cylindrical ground conductor 2B.

Further, on the outer periphery of the earth cover 9, as shown in FIG. 2, an engaging portion 11 is formed which is a combination of a protrusion 9E and a claw 9F. This engaging portion 11 is inserted into a groove 6B formed on the inner circumference of a protrusion 6A protruding from the plug body 6. The groove 6B has a protrusion 6 as shown in FIG.
C is provided, and the claw 9F rides over this protrusion 6C, thereby sandwiching the meat portion 6C between the claw 9F and the projection 9E, and fixing the plug element 7 to the plug body 6.

A cord 12 (Fig. 2) is connected to the conductive pin 2A and the plug 5 before the plate 8 is formed. Insert into.

"Operations and Effects of the Invention" According to the above-mentioned composite plug according to this invention, the conductive pins 2A and plugs 5 are implanted in the plate body 8 formed of a soft resin material, so the heads of the plugs 2A and plugs 5 are slightly shaped. It has degrees of freedom and can move. Therefore, insert the plug 5, which is longer than the conductive pin 2A, into the mating jack, and then
When inserting A into the mating socket and mating,
Since the axes of the plug 5 and the pin 2A are somewhat free, the fitting operation can be easily performed.

Furthermore, since the axes of the conductive plug 5 and the pin 2A are free, no undue force is applied to the mating jack.

Furthermore, since the ground cover 9 is fitted over the entire plate 8, the ground cover 9 can absorb the insertion and removal force applied to the conductive pin 2A and the plug 5. As a result, a highly durable composite plug can be obtained.

Further, even if there is some variation in the positions of the conductive pin 2A and the plug 5, the fitting operation to the jack can be easily performed. As a result, manufacturing accuracy is allowed, so yields can be improved and costs can be reduced accordingly.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing an embodiment of the composite plug according to this invention, Figure 2 is a perspective view showing a plug element used in the composite plug according to this invention, and Figure 3 is an example of a pin and plug used in the plug element. FIG. 4 is a side view, FIG. 4 is a perspective view to explain the state in which the pin and plug are installed in the plate, FIG. 5 is a perspective view showing an example of the earth cover used in this invention, and FIG. FIG. 7 is a plan view of the plug, FIG. 7 is a sectional view taken along line A-A shown in FIG. 6, FIG. 8 is a perspective view for explaining a conventional composite plug, and FIG. 9 is a practical example of a composite plug. FIG. 2A: Conductive pin, 2B: Cylindrical ground conductor, 3
A, 3B: Pin-shaped plug, 5: Plug, 6: Plug body, 7: Plug element, 8: Plate body, 8A: Projection, 9: Earth cover, 9A: Window, 11: Engagement part.

Claims (1)

[Claims for Utility Model Registration] A: A pair of conductive pins; B: A plate member made of a soft resin material and supporting one end of the pair of conductive pins; C: Fitted onto the periphery of the plate member. A composite plug comprising: an earth cover having a cylindrical earth conductor that surrounds the pair of conductive pins; and a plug body that fits around the outer periphery of the earth cover.