JP2595880Y2 - Lever connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever type connector in which two connector housings are fitted by rotating a lever.

[0002]

2. Description of the Related Art FIG. 6 shows a lever type connector. This is because the engagement pins 51 are formed on both sides of the female connector housing 50 of the two connector housings 50 and 60 which are fitted and connected to each other, and the support shafts 61 on both sides of the male connector housing 60 are provided. The arm 63 extended to both ends of the lever 62 is rotatably mounted. To connect the two connector housings 50 and 60, first, the female connector housing 50 is shallowly fitted into the hood portion 64 of the male connector housing 60, and the engaging pin 51 is fitted into the opening of the cam groove 65 of the arm portion 63. Let it. Accordingly, the projection 52 on the bottom surface of the female connector housing 50 and the hood 64 of the male connector housing 60 are provided.
And the projection 66 on the inner surface of the second member rides over and engages with each other. By the locking of the projections 52 and 66, the floating movement of the connector housings 50 and 60 in the pull-out direction is restricted, and the engagement pins 51 are held in the temporarily fitted state in which the engagement pins 51 are fitted into the cam grooves 65 as shown in FIG. Is done. Next, the lever 62 is rotated in this state. At this time, the connector housings 50 and 60 are held in the temporarily
1 does not come off the cam groove 65, the lever 62
Can be smoothly and reliably performed. By the engagement of the engagement pin 51 and the cam groove 65 with the rotation of the lever 62, the female connector housing 50 and the male connector housing 60 are drawn toward each other and are finally connected to each other.

[0003]

As described above, in the conventional lever-type connector, a projection 52 is formed on the bottom surface of the female connector housing 50 as a means for temporarily holding both connector housings in a temporarily fitted state. At the same time, a projection 66 is formed on the inner surface of the hood portion 64 of the male connector housing 60, and the projections 52 and 66 are locked. However, such a temporary fitting means has the following problems. That is, when the projection 66 is formed on the inner periphery of the hood portion 64 of the male connector housing 60, it is necessary to remove the mold for molding the inner surface of the projection 66. Part 6
A mold release hole 67 that opens to the outside of the hood portion 64 is formed in the rear end face of the hood 4. Therefore, in a state where the male and female connector housings 50 and 60 are fitted and connected, the outside and the inside of the connector communicate with each other through the mold release hole 67,
There is a fear that water may enter from outside and the terminal fittings inside the connector may get wet.

The present invention has been made in view of the above circumstances, and has a lever type provided with a temporary fitting means which does not cause the intrusion of water from the outside at the back of the hood portion of the male connector housing. It is intended to provide a connector.

[0005]

According to the present invention, as a means for solving the above problems, a female connector housing is fitted into a hood portion of a male connector housing, and a female connector housing and a male connector housing are provided. The two connector housings are held in the temporarily fitted state by fitting the engagement pins provided on one of the connector housings into the temporarily fitted positions of the cam grooves of the levers mounted on the other connector housing. In the lever-type connector in which the two connector housings are fully engaged by the engagement of the associated engaging pin and the cam groove, from at least one of the inner surfaces of the cam groove, from the opening of the cam groove to the temporary fitting position. A projection is formed in a direction perpendicular to the direction in which the engagement pin is fitted into the cam groove, and Spacing arm groove is smaller than the outer diameter of the engaging pin, the engaging pin is characterized in that it is capable fitted into temporary engagement position push the cam groove.

[0006]

In the present invention, when connecting the two connector housings, if the female connector housing is inserted shallowly into the hood portion of the male connector housing, the engaging pin enters the cam groove of the lever and comes into contact with the projection. Push out the cam groove. When the engaging pin is further pushed into the inner side of the cam groove, the engaging pin climbs over the protrusion, the cam groove returns and deforms, and fits into the temporary fitting position. At this temporary fitting position, the engaging pin is not easily removed from the cam groove by the projection, and both connector housings are held in the temporarily fitted state. When the lever is rotated in this temporarily fitted state,
Due to the engagement between the engagement pin and the cam groove, the female connector housing and the male connector housing are pulled toward each other, and are finally connected to each other.

[0007]

As described above, according to the present invention, a projection is formed in a cam groove of a lever as a means for holding both connector housings in a temporarily fitted state. Therefore, there is no need to form a punching hole in the hood, unlike the conventional method in which a projection is provided in the hood of the male connector housing, and the hood can be waterproofed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the overall configuration includes a female connector housing 10 and a male connector housing 20 having a hood 21 into which the female connector housing 10 is fitted. A terminal fitting (not shown) is mounted in a cavity 11 formed in the female connector housing 10, and a terminal fitting is also mounted in a cavity (not shown) formed in the male connector housing 20. When the male connector housing 20 is fitted by a fitting mechanism described later, the corresponding terminal fittings in both connector housings 10 and 20 are electrically connected to each other.

Next, a fitting mechanism for fitting the two connector housings 10, 20 will be described. Concentric engagement pins 1 are provided on both outer surfaces of the female connector housing 10.
2,12 are formed. On the other hand, concentric support shafts 22 projecting from both outer surfaces of the male connector housing 20 are provided.
In addition, plate-like arm portions 32, 3 are provided at both ends of the lever body 31.
A resin lever 30, which is formed as a whole and has a U-shape as a whole, is mounted by rotatably fitting the arms 32, 32 thereof. The female connector housing 10 is provided on the inner surface of each arm 32 of the lever 30.
The cam groove 33 with which the engaging pin 12 is engaged is
Are formed on the outer peripheral surface of the.

The hood portion 21 of the male connector housing 20 has a relief groove 24 for preventing the female connector housing 10 from projecting outward by avoiding interference with the engaging pins 12 when the female connector housing 10 is fitted. , 24 are formed. Projections 35, 35 projecting from both inner side surfaces of the cam groove 33 corresponding to each other are formed at positions slightly deeper than the opening of the cam groove 33 of each arm portion 32. The protrusions 35 have a triangular mountain shape having slopes on the opening side and the back side of the cam groove 33, and the corresponding interval between the tips of the projections 35, 35 is larger than the outer diameter of the engagement pin 12. The dimensions are slightly smaller.

Next, the operation of this embodiment will be described. When fitting the two connector housings 10 and 20, first, the lever 30 is set in a state where the opening of the cam groove 33 is aligned with the escape groove 24 as shown in FIG. The housing 10 is fitted shallowly into the hood 21. Along with this, the engagement pin 12 enters the inner side from the opening of the cam groove 33 and elastically deforms the arm portion 32 so as to push up the width of the cam groove 33, while the two projections 35,
35, the connector housings 10 and 20 reach the temporary fitting position, and the connector housings 10 and 20 are in the temporary fitting state shown in FIG. In this provisionally fitted state, the engagement pin 12 is locked to the projections 35, 35 of the cam groove 33 so that removal from the cam groove 33 is prevented.
0, 20 are held in the provisionally fitted state.

In this manner, the two connector housings 1
When 0 and 20 are held in the temporarily fitted state, lever 30
When the lever 30 is rotated, the connector housings 10 and 20 are pulled toward each other by the engagement between the cam groove 33 and the engagement pin 12 accompanying the rotation of the lever 30, and as shown in FIG. Is deeply fitted into the hood portion 21, and the terminal fittings are electrically connected. Here, when the rotation of the lever 30 is started from the provisionally fitted state, the engagement pin 12 is prevented from being disengaged from the cam groove 33 by the engagement with the projections 35, 35, so that the lever 30 is rotated. Then, the engagement pin 12 and the cam groove 3
3, and the operation of the lever 30 can be performed smoothly and reliably.

As described above, in this embodiment, the cam groove 33 of the lever 30 is used as a means for holding the connector housings 10 and 20 in a temporarily fitted state.
A method is used in which projections 35, 35 are formed on the projections 35, and the engagement pins 12 are engaged with the projections 35, 35. Therefore, as in the conventional method, the outer surface of the female connector housing and the projections provided in the hood portion of the male connector housing are locked to each other so as to be held in a temporarily fitted state. There is no need to form a mold release hole for molding. Therefore, in the present embodiment, there is no hole in the inner part of the hood part 21 for communication between the inside and the outside.
There is no danger that water will enter the interior of 1.

The present invention is not limited to the above embodiment, but may be modified as follows, for example. (A) In the above embodiment, the case where the lever is mounted on the male connector housing and the engagement pin is formed on the female connector housing has been described.
The present invention can also be applied to a case where the lever is mounted on the female connector housing and the engaging pin is formed on the male connector housing. (B) In the above embodiment, the case where the protrusion for holding the provisionally fitted state is formed on both inner surfaces of the cam groove has been described. However, the protrusion which is a component of the present invention is the cam groove. The invention is not limited to the case where the projection is formed on both inner surfaces, but also includes the case where the projection is formed on only one of the inner surfaces of the cam groove.

In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an embodiment of the present invention.

FIG. 2 is a side view of an unmated state.

FIG. 3 is a partially cutaway side view in a temporarily fitted state.

FIG. 4 is a partially enlarged partially cutaway side view of a temporarily fitted state.

FIG. 5 is a side view of the fully fitted state.

FIG. 6 is a partially cutaway side view of a conventional example in an unfitted state.

FIG. 7 is a partially cutaway side view of a conventional example in a temporarily fitted state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Female connector housing 12 ... Engagement pin 20 ... Male connector housing 21 ... Hood part 30 ... Lever 33 ... Cam groove 35 ... Projection

Claims (1)

(57) [Scope of request for utility model registration] A female connector housing is fitted into a hood portion of a male connector housing, and an engaging pin provided on one of the female connector housing and the male connector housing is connected to the other connector housing. The two connector housings are held in the temporarily fitted state by being fitted into the temporarily fitted positions of the cam grooves of the levers mounted on the connector housing, and the engagement between the engagement pins and the cam grooves accompanying the rotation of the lever is performed. In the lever-type connector in which the two connector housings are fully fitted, at least one of the inner surfaces of the cam groove is provided.
Between the opening of the cam groove and the temporary fitting position, a projection is formed in a direction orthogonal to a direction in which the engagement pin is fitted into the cam groove, and the cam at a tip portion of the projection is formed. A lever-type connector, wherein the interval between the grooves is made smaller than the outer diameter of the engaging pin, and the engaging pin pushes and expands the cam groove so as to be able to be fitted into a temporary fitting position.