JPS6220147Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention can be connected and removed with one touch.
This invention relates to a connector that is difficult to disconnect when connected.

The present inventor has already proposed Utility Model Application No. 50-54312 (Utility Model Publication No. 55-21502) as such a connector. The previous method was to provide a plurality of elastic legs on one side of the socket or plug, and engage the engagement piece at the tip of each elastic leg with an engagement protrusion on the other side. As the number of parts increases, precision is required for parts and assembly, resulting in high costs. The present invention further improves the previously devised device to make it easier to operate and to simplify the structure to facilitate manufacturing.

In the present invention, an annular groove 10 is provided on the outside of the plug body 2 in a socket body 1 and a plug body 2 that fit into each other, and an elastic plate 11 is not slid in the axial direction in this annular groove 10, but only inwardly. The elastic plate 11 is loosely fitted so that it can be bent, and an engaging protrusion 12 is provided on the outer side of the end of the elastic plate 11.
is provided, and the socket body 1 is also provided with this engaging protrusion 1.
2, the elastic plate 11 is provided with a second engagement protrusion 16, and the operating cylinder 20 has an annular groove 21 on the outside thereof that engages with the second engagement protrusion 16. This connector is provided to slide in the axial direction.

To explain the operation of the present invention, when connecting the plug body 2 to the socket body 1, the plug body 2 is fitted into the circular hole 3 of the socket body 1 and pressed in the axial direction.
As a result, the tip of the cylinder 14 of the socket body 1 comes into contact with the slopes of the engaging protrusions 12, 12 of the elastic plate 11, causing the elastic plate 11 to bend inward. Thus, when the outer ends of the engagement protrusions 12, 12 become smaller than the inner diameter of the cylinder 14, they enter the inside of the cylinder 14, and the elastic plate 11 is engaged at the position of the annular groove 15 and bulges outward, so that the engagement protrusions 12, 12 is engaged with the annular groove 15, and the socket body 1
and the plug body 2 are tightly fitted and held in an engaged state with each other.

Next, when pulling out the plug body 2 from the socket body 1, the operation tube 20 is pinched with fingers and operated outward. As a result, the second engaging protrusions 16, 16 are pushed inward, and the elastic plate 11 is bent inward. When the elastic plate 11 is bent by a certain amount, the first engagement projections 12,1
2 is removed from the annular groove 15 of the cylinder 14, and the plug body 2 becomes able to slide in the axial direction from the socket body 1 and can be removed.

An embodiment of the present invention will be described in detail below with reference to the drawings.

In Fig. 1, 1 is a socket body made of plastic, and 2 is a plug body made of plastic that fits into a circular hole 3 of the socket body 1. 4……
Conductive contacts 5, 5, . ……
... are made to protrude from the outer end of the socket body 1, while the conductive contacts 6, 6, .

An annular groove 10 is formed on the outer periphery of the central part of the plug body 2, and a semi-annular elastic plate 11 made of a metal plate is placed in the annular groove 10 so that it does not move in the axial direction but can only bend inward. fit loosely into This elastic plate 11
Serrated engagement protrusions 12, 12 are formed on the outer side of the end thereof, and the engagement protrusion 12 is formed on the inner circumferential surface of a cylinder 14 made of metal fixed to the opening edge of the circular hole 3 of the socket body 1. An annular groove 15 that engages with the holes 12 and 12 is bored.

As shown in the third figure, the engaging protrusion 1 of the elastic plate 11
Second serrated engagement protrusions 16, 16 having a higher height are formed at positions outward from 2, 12.

On the outside of the plug body 2 is an operating tube 20 made of metal.
are fitted to slide in the axial direction, and an annular groove 21 that engages with the second engagement protrusions 16, 16 is bored in the inner circumferential surface of the operating barrel 20.

Next, the method of operating this device will be explained.

When connecting the plug body 2 to the socket body 1, fit the plug body 2 into the circular hole 3 of the socket body 1,
Press in the axial direction. As a result, the tip of the cylinder 14 of the socket body 1 is connected to the engaging protrusions 12, 12 of the elastic plate 11.
The elastic plate 11 is deflected inward. Thus, when the outer ends of the engagement protrusions 12, 12 become smaller than the inner diameter of the cylinder 14, they advance into the inner diameter of the cylinder 14, and at the position of the annular groove 15, the elastic plate 11 is restored and bulges outward, as shown in the first and third figures. The engaging protrusions 12, 1
2 is engaged with the annular groove 15, and the socket body 1 and the plug body 2 are tightly fitted and held in an engaged state with each other. At this time, the conductive contacts 5, 5...
are inserted into the holes 4, 4... and conductive contacts 6, 6.
. . . and the electric wire 8 is connected to a required portion via the conductive contacts 5, 5 .

Next, when pulling out the plug body 2 from the socket body 1, the operation tube 20 is pinched with fingers and operated outward, that is, to the right in FIG. 1. This results in the second
The engaging protrusions 16, 16 are pushed inward, and the elastic plate 1
1 bends inward. When the elastic plate 11 is bent by a certain amount, the first engaging protrusions 12, 12 engage the annular groove 1 of the cylinder 14.
5, the plug body 2 can now slide in the axial direction from the socket body 1, and can be removed. When the plug body 2 is removed, the elastic plate 1
1 is restored and bulges outward, and the second engagement protrusion 1
Due to the slopes of 6 and 16, the operation tube 20 naturally moves to the first,
3 Return to the position shown. Therefore, a spring for restoring the operating barrel 20 is not required.

Although the semi-annular elastic plate 11 is used in the above embodiment, the shape of the elastic plate 11 does not have to be semi-annular.

FIG. 4 shows another embodiment, in which the annular groove 10 of the plug body 2 is divided into upper and lower parts by protrusions 10a, 10a, and inside thereof there are elastic plates 11a, 11a curved in a U-shape. First and second engaging protrusions 12 as shown in FIG.
a, 16a are provided.

As described above, in the present invention, when the socket body and the plug body are connected, the first engagement protrusion bends and engages, and when the socket body and the plug body are pulled out, the operating barrel presses the second engagement protrusion, causing the elastic plate to flex. Since the engagement of the first engagement protrusion is disengaged, both can be connected and pulled out with one touch, making the operation easy, and since the first engagement protrusion engages at the time of connection, it is difficult to come off and the connection is secured. Can be done. Also, the above elastic plate is 2
Since it has only two engaging protrusions, it can be made by pressing, and since the elastic plate only fits loosely, there is no installation process, and precision is not required for parts and assembly, and the number of parts is small. Therefore, it is easy to manufacture and can be provided at low cost.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is an exploded perspective view thereof, Fig. 3 A is an enlarged sectional view of the main part, B is a sectional view taken along line A-A in Fig. 1, and Fig. 4 is an exploded perspective view of the present invention. The figure is a sectional view of a portion corresponding to line A--A in Figure 1 of another embodiment of the present invention, and Figure 5 is a perspective view of the elastic plate. 1...Socket body, 2...Plug body, 10...
Annular groove, 11... Elastic plate, 12... Engaging protrusion, 1
5... Groove, 16... Engaging protrusion, 20... Operating tube,
16... Second engaging protrusion, 21... Annular groove.

Claims (1)

[Scope of utility model registration request] In the socket body and plug body that fit together, an annular groove is provided on the outside of the plug body, and an elastic plate is loosely fitted into this annular groove so that it does not slide in the axial direction but can only flex inwardly. An engaging protrusion is provided on the outside of the end of the elastic plate, and a groove is provided on the socket body to engage with the engaging protrusion.
This second engaging protrusion is provided on the outside of the engaging protrusion.
A connector that is provided with an operating cylinder that is slidable in the axial direction and has an annular groove that engages with an engaging protrusion of the connector.