JPS6037826Y2 - Connector locking mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking mechanism for male and female connector housings, and its purpose is to reliably lock male and female connector housings and to facilitate release thereof.

An example of implementing the present invention will be described below with reference to the drawings.

Reference numerals 1 and 22 designate male and female connector housings that are connected to each other.

The female connector housing 1 has a step 2 recessed axially upward and rearward in a side wall, and is cut from a hanging wall portion 3 of the step 2 to the rear of a front side wall 4 formed forward with the step 2 as a boundary. A notch 5 is formed.

A projection 7 that projects downward is formed in the notch end 6 in the axial direction at the rear of the front side wall 4 .

The protrusion 7 has an inclined surface 8 formed on its back surface to widen its base.

A rear side wall 9 formed at the rear with the step 2 as a boundary is formed with an elastic arm 10 integrally projecting from the rear side wall 9.

The elastic arm 10 rises from the rear part of the rear side wall 9 to the same height as the front side wall 4, gently curves forward, forms a curved part 10 in the part, extends horizontally forward, and has a distal end. faces the above-mentioned notch 5.

The above-mentioned elastic arm 10 has at least the tip portion formed to have the same thickness as the front side wall, and the tip portion is positioned at the notch portion of the front side wall 4 in the notch 5 with a clearance.

The male connector housing 22 has two slits 11 and 11' cut from the open end in the side wall opposite to the side wall of the female connector housing 1 in which the notch 5 is formed, and is surrounded by the slits 11 and 11'. A cantilever-like elastic piece 12 is formed on the part where the elastic piece 12 is formed.
3 is formed.

When the male and female connector housings 1 and 2 are connected, the protrusions 7 and the windows 13 formed in each are engaged with each other and locked.

Figures 2 to 5 are cross-sectional views showing the principle of the present invention, and Figure 2 shows male and female connectors.
This shows the state before the two are connected to each other.

Figure 3 shows the male connector housing 2 from the state shown in Figure 2.
2 is shown in the middle of being inserted into the female connector housing 1. In this state, the cantilever-shaped elastic piece 12 has its tip abutted against the inclined surface of the protrusion 7, and the entire body is inserted into the female connector housing 1. Move forward while curving.

Subsequently, as the male connector housing 22 is inserted deep into the female connector housing 1 from the state shown in FIG. The elastic piece 12 is then returned to the horizontal state, and both the male and female connector housings 1 and 22 are locked together.

FIG. 5 shows a state in which the male and female connector housings 1.22 are unlocked.

The lock can be released by pushing down the tip of the cantilever-like elastic arm 10 and pushing down the tip of the elastic piece 12 located below the tip.

That is, by pushing down the tip of the elastic piece 12, the window 13 can be separated from the protrusion 7, and under such conditions, the male and female connector housings 1 and 22 can be separated from each other.

As described above, the locking mechanism of the present invention can easily lock and release the male and female connector housings 1 and 22.

Further, since the elastic arm 10 does not protrude higher than the front side wall 4, the elastic arm 10 is relatively less affected by external influences and will not break.

In the present invention, in order to protect the elastic arm 10 from the outside, protective walls 14 are provided on both sides of the elastic arm 10 as shown in FIG.
．． 14' is also possible.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention. Fig. 1 is a perspective view of a male and female connector housing before coupling with a connector locking mechanism according to the invention, and Figs. FIG. 2 is a cross-sectional view showing the principle;
The figure is a sectional view corresponding to Fig. 1, Fig. 3 is a sectional view of the male and female connector housings in the middle of connection, Fig. 4 is a sectional view of the male and female connector housings in a locked state, and Fig. 5 is the locking of the male and female connector housings. FIG. 6 is a perspective view of a female connector housing showing another embodiment of the present invention. 1...Female connector housing, 22...
...Male connector housing, 2...Step, 3
... Hanging wall part, 4 ... Front side wall, 5 ...
...notch, 6...notch end, 7.
...Protrusion, 9...Rear side wall, 10...
...Elastic arm, 11,11'...Slit, 1
2...Elastic piece, 13...Counter.

Claims (1)

[Scope of utility model registration request] In male and female connector housings that fit together, the female connector housing forms a step in the side wall that recesses upward in the axial direction, and extends from the hanging wall of the step to the rear of the front side wall that is formed forward with the step as a boundary. A notch is formed across the front side wall, and a protrusion that protrudes downward is formed at the end of the notch in the axial direction at the rear of the front side wall. The distal end of the elastic arm, which is integrally protruded without increasing the height, faces the notch, and the male connector housing faces the side wall of the female connector housing in which the notch is formed. Two slits are made in the side wall from the open end, and a cantilever-like elastic piece is formed in the area surrounded by the slit, and a window is formed in the elastic piece, and the male and female connectors are connected to each other. 1. A locking mechanism for a connector, characterized in that the connector is locked when the protrusion and the hole are engaged with each other, and the locking mechanism is released by the downward displacement of the elastic piece by pushing down the elastic arm.