JPH0226141Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a connector with a locking mechanism that automatically locks in the connected state.

(Prior Art) Conventionally, the applicant of the present application first proposed a connector with a locking mechanism of this type in Utility Application No. 56-30886.
145288) is structured as shown in Figure 6. This connector with a locking mechanism connects devices by inserting a first plug 1 attached to a cord into a first socket 2 attached to the device. Consisting of a male contact base 3 and a first slider 5 provided on the outer periphery of the male contact base 3 and biased toward the tip by the pressing force of the coil spring 4, the tip of the first slider 5 A pair of first slider tongues 5a are provided protrudingly from the top of the male contact base 3, and a shell tongue 3a having a bulge 3b formed on the outer surface is attached to the first slider tongue 5a at the tip of the male contact base 3. The shell tongue piece 3a extends through a through hole 5b formed in the first slider 5, and in a normal state, the shell tongue piece 3a and the first slider tongue piece 5a are connected. are biased by a coil spring 4 so that they overlap.

Further, the structure of the first socket 2 is such that a first socket shell 7 is continuously provided on the outer periphery of the female base 6, and a bent part 7a bent inward is formed at the tip of the first socket shell 7. 1st socket shell 7
A fitting space 8 is formed between the female contact base 6 and the first slider tongue 5a and the shell tongue 3a in an overlapping manner.

When connecting the first plug 1 and the first socket 2, first insert the shell tongue piece 3a of the male contact base 3 into the fitting space 8 of the first socket 2. The slider tongue piece 5a of No. 1 also tries to enter. However, the shell tongue piece 3a
Since the bulging portion 3b of the socket contacts the bent portion 7a of the first socket shell 7, the bulging portion 3b is pushed by the bent portion 7a and pushes the shell tongue piece 3a and the first slider tongue piece 5a inward. bend in the direction. Therefore, the first slider tongue 5a abuts against the tip of the female contact base 6, and the first slider 5 relatively retreats while compressing the coil spring 4. Then, when only the shell tongue piece 7a is inserted and the bulging part 3b crosses the bent part 7a, the shell tongue piece 7a is inserted.
a returns to its original state, and along with this, the first slider tongue piece 5a also returns to its original state. Therefore, the first slider tongue piece 5a that was in contact with the tip of the female contact base 6 enters into the fitting space 8 due to the pressing force of the coil spring 4, making it impossible to bend the shell tongue piece 3a. It becomes completely locked. Next, in order to disconnect the first plug 1 and the first socket 2, the first slider 5 is moved back and the shell tongue piece 3a of the first plug 1 is released. 1 plug 1 is pulled out from the first socket 2.

(Problem to be solved by the invention) However, since such a connector with a locking mechanism only connects a plug and a socket, it is necessary to connect the plugs to each other to change the length of the cord. It could not be used as a cord, and in addition, it was necessary to prepare cords of various lengths in order to change the distance between devices.

The present invention has been developed with attention to these points, and aims to provide a connector with a locking mechanism that can be used for connecting plugs and at the same time allows each plug to be connected to a socket. be.

(Means for solving the problem) Therefore, the present invention maintains the locked connection between the plugs by protruding the slider, and the first plug is attached by a coil spring. A biased first slider is provided around a first contact base, and a shell tongue piece with a protruding portion is formed at the tip of the first contact base, and a shell tongue piece that corresponds to the shell tongue piece is formed at the tip of the first contact base body. A first slider tongue piece is formed at the tip of the first slider so as to overlap each other, and a second plug is biased around the second contact base by a coil spring. A plug shell is provided on the outside of the second slider tongue, and the first slider tongue and the shell are provided between the plug shell and the second contact base inside the plug shell. A fitting space is provided with a spacing that allows the tongue pieces to be stacked and accommodated, and a protrusion that engages with the bulge of the shell tongue piece in the connected state projects near the entrance of the fitting space. It is.

(Function) With this configuration, the first plug and the second plug can be connected by simply pushing both plugs together, and the shell tongue comes into contact with the protrusion of the plug shell, and the shell tongue and the first plug come into contact with each other. The slider tongue of the slider is bent inward, and the shell tongue retreats the second slider and is housed in the fitting space together with the first slider tongue, thereby allowing one-touch connection. They can be used as plugs for extension cords, and each plug can be connected to its corresponding socket.

(Example) Next, an example of implementation of the present invention will be described with reference to the drawings. Fig. 1 is a sectional view showing the plug of the present invention, Fig. 2 is a sectional view showing the state in which the plugs are connected to each other, Fig. 3 is a sectional view showing the state where the connection is completed, and Fig. 4 is a sectional view showing the plug of the present invention. A sectional view for explaining the connection between the second plug and the second socket,
FIG. 5 is a sectional view for explaining the connection between the second socket and the first socket. In the figure, 10 is a connector with a locking mechanism, and this connector 10 has a first plug 1 and a second plug 11.
This locking state is maintained by protruding the first slider 5 of the first plug 1 and the second slider 12 of the second plug 11.

Since the configurations of the first plug 1 and the first socket are shown in FIG. 6, their explanation will be omitted, and the configuration of the second plug 11 connected to the first plug 1 will be described first. Next, the configuration of the second socket will be described.

As shown in FIG. 1, the second plug 11 includes a female contact base 13 and a female contact base 1.
The second slider 12 is provided on the outer periphery of the slider 3 and is biased toward the distal end by the pressing force of the coil spring 14.
A pair of second slider tongues 12a protruding from the tip of the second slider 12, and the first slider tongue 15a and shell tongue 3a that the second slider tongues 12a abut. A fitting space 15 is formed in which the second slider 12 is accommodated in an overlapping manner.
A protrusion 16a bent inward is formed at the tip of 6. Then, the female contact base 1
A guide groove 13a that guides the second slider tongue piece 12a and restricts the sliding movement of the second slider 12 is formed on the outer periphery of the slider 3. The gap between the protruding portion 16a and the tip of the female contact base 13 is equal to the gap between the first slider tongue piece 5a and the shell tongue piece 3a.
The plate thickness is larger than the sum of the first slider tongue piece 5a and the bulge part 3b, and is smaller than the plate thickness of the first slider tongue piece 5a and the bulge part 3b.

Further, the second plug 11 can be connected to a second socket 17 shown in FIG.
That is, the structure of the second socket 17 is such that a second socket shell 19 is disposed to cover the outer periphery of the male contact base 18, and the second slider tongue piece is attached to the tip of the second socket shell 19. A pair of shell tongues 19a facing the plug shell 12a are provided, and a protruding portion 19b that engages with the protrusion 16a of the plug shell 16 is provided on the shell tongues 19a.

The operation of the locking mechanism in the connector 10 constructed in this way will be explained. To connect the second plug 11 to the first plug 1, the slider 5 of the first plug 1 and the second
The slider 12 of the plug 11 is opposed to the first one.
The slider tongue piece 5a and the shell tongue piece 3a of the second plug 1 are inserted into the fitting space 15 of the second plug 11. Then, the tip edge of the bulging part 3b of the shell tongue piece 3a comes into contact with the inner peripheral edge of the protrusion part 16a of the plug shell 16 of the second plug 11, and the shell tongue piece 3a
and bend the slider tongue piece 5a inward, and
The slider tongue piece 5a is brought into contact with the tip of the female contact base 13, and the first slider 5 is relatively retreated against the pressing force of the coil spring 4, so that only the shell tongue piece 3a is placed in the fitting space 15. insert it inside. Then, when the first plug 1 is inserted into the second plug 11, the shell tongue piece 3a causes the second slider 12 to retreat against the pressing force of the coil spring 14. When the bulging part 3b of the first plug 1 is inserted deep inside beyond the protruding part 16a, the shell tongue piece 3a that was bent inward returns to its original state, so that it does not collide with the female contact base 13. The first slider tongue piece 5a enters into the fitting space 15 by the pressing force of the coil spring 4, the first slider tongue piece 5a abuts the second slider tongue piece 12a, and the first slider tongue piece 5a This prevents the shell tongue piece 3a from overlapping with the shell tongue piece 3a and bending the shell tongue piece 3a inward.

In addition, when disconnecting the first plug 1 and the second plug 11, by pulling the first slider 5 and the second slider 12 together, the spring force of the coil springs 4 and 14 is reduced. slider 5,1 against
2 retreats, and the shell tongue piece 3a once moves to the protrusion 16a.
This causes the cable to be bent inward, and the connection between the two becomes disconnected.

Furthermore, the second plug 11 can also be connected to a second socket 17 that is attached to the device. That is, when the shell tongue piece 19a is inserted into the plug shell 16 with the second slider tongue piece 12a and the shell tongue piece 19a facing each other as shown in FIG. comes into contact with the inner periphery of the protrusion 16a of the plug shell 16,
The shell tongue piece 19a is bent inward. Therefore, the shell tongue piece 19a comes into contact with the second slider tongue piece 12a of the second slider 12 and causes it to retreat against the pressing force of the coil spring 14. and,
When the bulging part 19b of the shell tongue piece 19a goes beyond the protruding part 16a of the plug shell 16 and enters deep inside,
Since the bent shell tongue piece 19a returns to its original position, the second slider 12, which had been retreated by the shell tongue piece 19a, returns to its original position due to the pressing force of the coil spring 14. Therefore, the second slider tongue piece 12a overlaps with the inside of the shell tongue piece 19a, and the shell tongue piece 19a cannot be bent, so that the second plug 11 and the second socket 17 are in a locked state. Connected with

Also, the second plug 11 and the second socket 17
To disconnect from the shell tongue 19a, move the second slider 12 backward and pull the second plug 11 and the second socket 17 relatively. The connection between the two will be terminated.

The second socket 17 is connected to the first socket 17 as shown in FIG.
It can also be connected to socket 2 of When the shell tongue piece 19a of the second slider 17 is inserted into the fitting space 8 of the first slider 2, the bulging part 19b of the shell tongue piece 19a is once bent inward by the bending part 7a. However, the bent portion 7a is connected to the bulged portion 19b.
When the shell tongue piece 19a crosses over and penetrates into the inner depths, the shell tongue piece 19a returns to its original state, so that it is connected in a half-locked state.

(Effect of the invention) The present invention is constructed as described above, the first plug is constructed such that the first slider tongue piece and the shell tongue piece overlap, and the second plug is constructed such that the plug shell and the second contact piece overlap each other. A fitting space is formed between the base body and the first slider tongue piece and the shell tongue piece to accommodate the first slider tongue piece and the shell tongue piece, and the connection between the first plug and the second plug is established between the first slider tongue piece and the shell tongue piece. Since the second plug is maintained by protruding the second slider, not only can the second plug be connected to the conventional first plug, but also the second plug can be connected to the conventional first plug.
Since the second socket can be connected to the first socket, it can be used as a plug attached to a cord for connecting devices, or as a plug for extending cords. Since it can be connected to both devices, a versatile connector can be obtained that can be used to directly connect devices.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing an embodiment of the connector with a locking mechanism according to the present invention, Fig. 2 is a cross-sectional view showing the state in the middle of connecting the plugs, and Fig. 3 similarly shows the state after the connection is completed. 4 is a sectional view to explain the versatility of the second plug, FIG. 5 is a sectional view to explain the versatility of the second socket, and FIG. 6 is a conventional lock mechanism. FIG. 3 is a sectional view showing the attached connector. 1: first plug, 3: male contact base,
3a: shell tongue, 3b: bulge, 4, 14: coil spring, 5: first slider, 5a: first slider tongue, 11: second plug, 12: second slider, 12a :Second slider tongue piece, 13:
Female contact base, 15: fitting space, 16: plug shell, 16a: protrusion.

Claims (1)

[Scope of utility model registration request] In a connector with a locking mechanism in which a first plug and a second plug are locked in a connected state and the locked state is maintained by protrusion of a slider provided on the plug, the first plug is connected by a coil spring. A biased first slider is provided around a first contact base, a shell tongue piece with a protruding portion is formed at the tip of the first contact base, and an inside of this shell tongue piece is formed. A first slider tongue piece is formed at the tip of the first slider so as to overlap the periphery, and a second plug has a second slider tongue piece biased by a coil spring around the second contact base body. A second slider having a second slider tongue is provided, a plug shell is provided on the outside of the second slider tongue, and a plug shell is provided between the first slider tongue and a second contact base inside the plug shell. A fitting space is provided with a spacing that allows the shell tongue pieces to be accommodated in a stacked manner, and a protruding portion that engages with the bulging portion of the shell tongue piece in the connected state is made to protrude near the entrance of the fitting space. A connector with a locking mechanism.