JP2574805Y2 - 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 connected by rotating a lever.

[0002]

2. Description of the Related Art FIG. 9 shows a lever type connector. This is because the support shaft 71 is formed on both outer surfaces of the male connector housing 70 of the two connector housings fitted and connected to each other, and the support shaft 71 is
A plate-shaped arm portion 73 protruding from both ends of a lever 72 having a generally U-shape is rotatably fitted, and the arm portion 7 is attached to both outer surfaces of a female connector housing (not shown).
3 has a structure in which engagement pins engaged with the cam grooves 74 formed on the inner side surface are formed. When connecting the two connector housings, the female connector housing is shallowly fitted into the hood 75 of the male connector housing 70, and the engaging pin is fitted into the opening of the cam groove 74 of the arm 73.
When the lever 72 is rotated from this state, the female connector housing and the male connector housing 70 are drawn and connected by the engagement between the engagement pin and the cam groove 74 accompanying the rotation of the lever 72.

In such a lever-type connector, an excessive torque acts on the arm portion 73 when the lever 72 is rotated, so that the arm portion 73 disengages the cam groove 74 from the engagement pin. When the arm 73 is bent outward, the arm 73 is detached from the support shaft 71. For this reason, on the outer side surface of the male connector housing 70, a retaining wall portion 76 for preventing the arm portion 73 from bending outward and coming off the support shaft 71 is provided.
As shown in FIG. 10, the conventional retaining wall portion 76 is formed by bending a portion extending in a plate shape from the outer surface of the male connector housing 70 to the outside so as to correspond to the outer surface of the arm portion 73. It was a shape. This is the arm 73
Is bent outward, the outer surface of the arm portion 73 is brought into contact with the inner surface of the retaining wall portion 76 to prevent outward bending of the arm portion 73, so that the arm portion 73 can be removed from the support shaft 71. This is to prevent it.

[0004]

However, in the above-mentioned conventional detachment preventing means, the retaining wall 76 is provided with the arm 73.
It was provided so as to be located outside. For this reason, the width dimension of the male connector housing 70 as a whole becomes large, and as a result, when the space for mounting the connector is narrow or the position and the direction of the mounting are restricted, the mounting becomes impossible. Or the installation work becomes difficult. This is
This is a problem that can occur not only when the lever is mounted on the male connector housing but also when it is mounted on the female connector housing.

The present invention has been made in view of the above circumstances, and does not increase the width of the connector housing as a detachment preventing means for preventing the arm portion of the lever from bending outward and coming off. It is an object to provide a lever-type connector with a method.

[0006]

SUMMARY OF THE INVENTION According to the invention of claim 1, a lever is provided.
-A U-shaped laser with plate-shaped arms at both ends of the body
The bar and the connector located inside both arms of the lever
And a lever housing, with both arms of the lever
The formed shaft holes are on the left and right outer surfaces of the connector housing.
The two arm portions are connected to the connector by
Turn the lever so that it is located outside the housing.
Movably supported, the arm portion of the lever
On the tip end of the arm is a plate that is thinner than the thickness of the arm
And the connector is protruded toward the inside and the connector
Engage the housing from outside of the retaining engagement part.
Prevents the arm from coming off the support shaft.
A retaining wall portion is provided, and the outer surface of the retaining wall portion is
It is characterized in that it is located on the inner side than the outer side surface of the arm portion .

[0007] The invention of claim 2 is based on the point of the arm of the lever.
A retaining groove is formed on the end face and the connector housing is
The arm part is engaged with the retaining groove
A retaining wall that prevents the shaft from coming off the support shaft is provided.
Position the outer surface of the retaining wall inside the outer surface of the arm.
It has a characteristic where it is placed.

[0008]

In the present invention, even if the arm portion bends outward and is deformed in a direction of disengaging from the support shaft, the engagement between the retaining engagement portion and the retaining wall portion causes the arm portion to be disengaged from the support shaft. Escape is prevented. Since the retaining engagement portion is formed on the inner side of the outer surface of the arm portion, and furthermore, the amount of deviation of the wall surface of the retaining wall portion from the outer surface of the retaining engagement portion to the outside is small, The retaining wall does not protrude largely outward with respect to the arm.

In the invention according to claim 2,
The retaining wall is fitted in the retaining groove,
By the engagement between the inner surface of the engagement groove and the retaining wall, the arm is
It is prevented from bending outward and disengaging from the support shaft.

[0010]

As described above, according to the present invention, the retaining portion is located inside the outer surface of the arm portion and the retaining wall is slightly outside the retaining portion. , The locking wall portion is prevented from protruding largely outward with respect to the arm portion, so that the overall width of the connector housing to which the lever is mounted can be minimized. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Embodiment 1 of the present invention will be described below with reference to FIGS. 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 means described below,
The corresponding terminal fittings in both connector housings 10 and 20 are electrically connected.

The male connector housing 20 is provided with a resiliently deformable resin lever 30, which is formed into a generally U-shape by projecting plate-like arms 32, 32 at both ends of a lever body 31. . The mounting structure of the lever 30 is such that the arm portions 32, 32 are elastically deformed so as to expand, and the shaft holes 35, 35 at the substantially central portions thereof project from both outer surfaces of the male connector housing 20, respectively. By being fitted to the shaft, the structure is supported in a freely rotatable manner. The arm portions 32, 32 of the lever 30 attached in this manner.
Are merely fitted on the support shafts 22, 22, and are in a state of being able to move outward with respect to the support shaft 22. A cam groove 33 is formed on the inner side surface of each arm portion 32 of the lever 30 so as to open on the outer peripheral surface of the arm portion 32.
The engagement pins 12 projecting concentrically are engaged with both outer surfaces.

When the connector housings 10 and 20 are fitted, first, the female connector housing 10 is fitted shallowly into the hood portion 21 and the engaging pin 12 is fitted into the opening of the cam groove 33. And from this state, lever 3
When the lever 0 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 the female connector housing 10 is moved into the hood portion 21. And the terminal fittings are electrically connected to each other. Here, when the lever 30 is rotated, an excessive torque acts on the arm 32, so that the arm 32
When the arm portion 32 bends outwardly, the arm portion 32 is disengaged from the support shaft 22 so as to disengage the cam groove 33 from the engagement pin 12. For this reason, the male connector housing 20 is provided with means for preventing the arm portion 32 from bending outward and coming off the support shaft 22. Hereinafter, the configuration will be described.

On both outer side surfaces of the male connector housing 20, a retaining wall portion 25 whose wall surface is parallel to the arm portion 32 is formed. The retaining wall portion 25 has an arc-shaped portion 26 along the locus drawn by the leading edge of the arm portion 32 when the lever 30 is rotated in a direction in which the connector housings 10 and 20 are fitted. I have. In the thickness direction of the arm portion 32, the inner wall surface 27 of the retaining wall portion 25 is located substantially at the center of the thickness of the arm portion 32, and the outer wall surface 28 is located slightly inside the outer surface of the arm portion 32. doing. On the other hand, on the outer peripheral surface on the distal end side of the arm portion 32, the arm portion 32 is provided.
A retaining engagement portion 36 having a plate-like shape parallel to the above is formed. The retaining engagement portion 36 is divided into two portions by notching a portion corresponding to the opening of the cam groove 33. The inner surface 37 in the thickness direction of the arm portion 32 of the retaining engagement portion 36 is flush with the inner side surface of the arm portion 32, and the outer engagement surface 38 is located substantially at the center in the thickness direction. The inner wall surface 27 of the retaining wall portion 25 can be accommodated with a slight gap.

Next, the operation of this embodiment will be described.
As the lever 30 is rotated in the direction in which the two connector housings 10 and 20 are fitted, the retaining engagement portion 36 is positioned inside the retaining wall 25 with a slight gap. . At this time, if the arm portion 32 is going to bend outward, the engagement surface 38 outside the engagement portion 36 for retaining is stopped when the arm portion 32 is slightly bent.
5 is in contact with the inner wall surface 27. This retaining engagement portion 36
The arm portion 32 is prevented from being disengaged from the support shaft 22 since the outward bending of the arm portion 32 is prevented by the engagement between the arm portion 32 and the retaining wall portion 25.

In the present embodiment, the retaining wall 25 for retaining the arm 32 from the support shaft 22 has the outer wall surface 28 located inside the outer surface of the arm 32. Accordingly, the retaining wall portion 25 does not protrude outside the arm portion 32, and the male connector housing 2
The overall width of 0 is kept as small as possible. <Embodiment 2> Hereinafter, Embodiment 2 of the present invention will be described with reference to FIGS. As shown in FIG. 5, the overall configuration includes a female connector housing 40 and a male connector housing 50 having a hood portion 51 into which the female connector housing 40 is fitted. A terminal fitting (not shown) is mounted in a cavity 41 formed in the female connector housing 40, and a terminal fitting is also mounted in a cavity (not shown) formed in the male connector housing 50. When the male connector housing 50 is fitted by means described below,
Terminal fittings corresponding to each other in both connector housings 40 and 50 are electrically connected to each other.

The male connector housing 50 is provided with elastically deformable resin levers 60 which are generally U-shaped by projecting plate-like arms 62, 62 at both ends of a lever body 61. . The mounting structure of the lever 60 is such that the arm portions 62, 62 are elastically deformed so as to expand, and the shaft holes 65, 65 at the substantially central portions thereof project from both outer surfaces of the male connector housing 50. By being fitted to the shaft, the structure is supported in a freely rotatable manner. The arm portions 62, 62 of the lever 60 attached in this manner.
Are merely fitted to the support shafts 52, 52, and are in a state of being able to move outward with respect to the support shaft 52. A cam groove 63 is formed on the inner surface of each arm portion 62 of the lever 60 so as to open on the outer peripheral surface of the arm portion 62.
The engagement pins 42 protruding concentrically on both outer side surfaces are engaged.

When the connector housings 40 and 50 are fitted together, first, the female connector housing 40 is fitted shallowly into the hood portion 51 and the engaging pin 42 is fitted into the opening of the cam groove 63. And from this state, lever 6
When the lever 0 is rotated, the connector housings 40 and 50 are pulled toward each other by the engagement between the cam groove 63 and the engaging pin 42 accompanying the rotation of the lever 60, and the female connector housing 40 is moved into the hood portion 51. And the terminal fittings are electrically connected to each other. Here, when the lever 60 is rotated, an excessive torque acts on the arm portion 62, so that the arm portion 62
When the arm portion 62 bends outward, the arm portion 62 is disengaged from the support shaft 52. For this reason, the male connector housing 50 is provided with a means for preventing the arm portion 62 from bending outward and coming off the support shaft 52. Hereinafter, the configuration will be described.

On both outer surfaces of the male connector housing 50
Is a retaining wall portion 55 whose wall surface is parallel to the arm portion 62.
Is formed. The retaining wall 55 is provided with two connector housings.
Turn the lever 60 in the direction to fit the housings 40 and 50.
Concentric with the trajectory drawn by the tip edge of the arm 62 when moved
And has an arc-shaped portion 56 having a diameter smaller than that of the locus.
In the thickness direction of the arm 62, the inside of the retaining wall 55
Side wall 57 is located outside the inner side surface of the arm portion 62
The outer wall surface 58 is more inward than the outer surface of the arm 62.
It is located in. On the other hand, the outer peripheral surface on the distal end side of the arm portion 62
The central part in the thickness direction of the arm part 62For retaining
Engagement groove 66Are formed. thisEngagement groove 66 for retaining
Means that the portion corresponding to the opening of the cam groove 63 is cut off
Is provided in two parts.Engagement groove for retaining
66Of the arm portion 62 in the thickness direction.
The inner side surface 67 is opposed to the inner wall surface 57 of the retaining wall portion 55.
It is possible to cope with a slight gap. one
WhoEngagement groove 66 for retainingThe inner surface 68 located outside the
A slight gap is formed between the outer wall surface 58 of the stop wall portion 55 and the outer wall surface 58.
It has become.

Next, the operation of this embodiment will be described.
As the lever 60 is rotated in the direction in which the connector housings 40 and 50 are fitted, the retaining wall portion 55 is retained.
And enters the inside of the engagement groove 66 for use . At this time, if the arm portion 62 attempts to bend outward, the inner side surface 67 located inside the retaining engagement groove 66 becomes inside the retaining wall portion 55 when the arm portion 62 is slightly bent. Wall 5
Contact 7 The retaining engagement groove 66 and the retaining wall 55
As a result, the outward bending of the arm 62 is prevented by the engagement with the arm 62, so that the arm 62 does not come off from the support shaft 52. In the present embodiment, the support shaft 52 of the arm portion 62
The retaining wall portion 55 for retaining from the inside is located inside the outer side surface of the arm portion 62. Therefore, the retaining wall portion 55 does not protrude outside the arm portion 62,
The overall width of the male connector housing 50 is kept as small as possible.

The present invention is not limited to the above embodiment, but can 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. 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 a perspective view showing an entire configuration of a first embodiment.

FIG. 2 is a perspective view of a lever according to the first embodiment.

FIG. 3 is a side view showing a state where the male and female connector housings of the first embodiment are fitted.

FIG. 4 is a front view illustrating a lever retaining mechanism according to the first embodiment.

FIG. 5 is a perspective view showing an entire configuration of a second embodiment.

FIG. 6 is a perspective view of a lever according to a second embodiment.

FIG. 7 is a side view showing a state where the male and female connector housings of the second embodiment are fitted.

FIG. 8 is a front view showing a lever retaining mechanism according to a second embodiment.

FIG. 9 is a perspective view of a conventional male connector housing.

FIG. 10 is a front view showing a conventional lever retaining mechanism.

[Explanation of symbols]

 Reference Signs List 20 male connector housing 22 support shaft 25 retaining wall portion 30 lever 32 arm portion 33 cam groove 36 retaining engagement portion

────────────────────────────────────────────────── ─── Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 13/62-13/639

Claims (2)

(57) [Scope of request for utility model registration] 1. A lever body having plate-like arms at both ends.
L-shaped lever and the two arms of the lever
A connector housing located on the inside, and a shaft hole formed in both arms of the lever,
Fit to the support shafts protruding from the left and right outer surfaces of the housing.
The arms are positioned outside the connector housing.
In such a way that the lever is rotatably supported
And the tip of the arm of the lever has a thickness greater than the thickness of the arm.
The locking engagement part, which has a thin plate shape, is protruded toward the inside.
In addition, the connector engaging portion is provided on the connector housing.
The support of the arm portion by engaging from outside
A retaining wall that prevents the shaft from coming off is provided.
Positioning the outer surface of the wall portion inside the outer surface of the arm portion
A lever-type connector characterized by being made . 2. A lever body having plate-like arms at both ends.
L-shaped lever and the two arms of the lever
A connector housing located on the inside, and a shaft hole formed in both arms of the lever,
Fit to the support shafts protruding from the left and right outer surfaces of the housing.
The arms are positioned outside the connector housing.
In such a way that the lever is rotatably supported
There are, to form a retaining latching groove on the distal end surface of the arm portion of the lever
And the connector housing is provided with the retaining engagement.
By engaging in the groove, the arm shaft
A retaining wall that prevents them from coming off, and the retaining wall
Is positioned inside the outer surface of the arm portion.
Lever-type connector, characterized in that the.