JP3230430B2 - 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, and more particularly, to a lever-type connector which can be mounted at a predetermined position via a bracket.

[0002]

2. Description of the Related Art In connectors used for automobiles and the like,
While the fitting force increases due to the increase in the number of poles, a lever-type connector having a rotary lever utilizing the leverage principle is used. That is, when the lever is rotated, the lever is used, and a large force is exerted with a small force so that the lever can be fitted and connected to the mating connector. On the other hand, as the number of poles increases and the type of lever becomes larger, the connector itself becomes larger, and it becomes unstable just to hang it between wire harnesses. are doing.

[0003]

In the above-mentioned conventional lever-type connector, the size of the lever-type connector is increased as much as the lever is mounted, which hinders the handling of wiring. Also, since a large force is required to pull the mating connector, the arm portion of the U-shaped lever must be supported by sandwiching it from both sides. Therefore, not only the size is increased by the lever, but also a guide wall for reinforcement is provided, and the size is increased by two.

[0004] The present invention has been made in view of the above problems, and has as its object to provide a lever-type connector which can be multi-polarized and can be prevented from increasing in size.

[0005]

According to a first aspect of the present invention, there is provided a lever-type connector in which one connector housing having a cam pin on an outer surface and the one connector housing can be fitted. The other connector housing, a frame-shaped bracket to which the other connector housing can be mounted, and a lever which is mounted on the inner peripheral surface of the bracket and has a cam groove corresponding to the cam pin; By rotating the lever, the cam pin is pulled in on the inner peripheral surface of the cam groove, and the lever type connector that combines the two connector housings is provided. While both connector housings can be mounted , the wall surface of the bracket
Before the connector housings are mated, release the lever.
It is characterized in that a protective wall covering the side without extending is extended .

[0006] The invention according to claim 2 is the invention according to claim 1.
In the lever type connector, on the inner surface of the bracket,
A pivot pin that engages with the lever and becomes the center of rotation of the lever
And a pivot pin on the inner surface of the bracket.
Is extended inward from below and bent upward
And a thin flat guide cover that covers the pivot pin from inside.
It has features in the place where it is formed.

[0007]

According to the first aspect of the present invention, since the connector housing itself for holding the terminal fitting is not provided with a lever, the connector housing is small in size and easy to handle. On the other hand, when mating with the mating connector, the connector housing is mounted on a bracket, and the lever is mounted on the bracket. In addition, the connector housing is installed in the frame-shaped bracket.
When the bracket is attached, the lever piece connects to the inner peripheral surface of the bracket.
For the lever piece only.
There is no need to provide a guide wall.

Further , according to claim 2 configured as described above,
In this invention, the lever is engaged with the pivot pin.
Sometimes, the guide cover falls off while supporting the lever from the inside
Can be held so as not to.

[0009]

As described above, according to the present invention, by mounting the lever piece on the bracket, the connector housing to be routed can be miniaturized, and the fitting operation force can be reduced while facilitating the routing. A simple lever-type connector can be provided.

[0010] Also, since adapted to support a lever piece bracket as frame, without requiring a guide wall, it can be made smaller by one size.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a lever-type connector according to an embodiment of the present invention.
FIG. 2 is a plan view showing an assembled state, and FIG.
This is shown by a cross-sectional view taken along arrow A.

Referring to FIG. 1, the present lever-type connector has a female connector housing 10 in the form of a rectangular box having a cam pin 11 on an outer surface and a hood portion 21 into which the female connector housing 10 can be inserted. 20, a frame-shaped bracket 30 to which the male connector housing 20 can be mounted, and the cam pin 1 rotatably mounted on the inner peripheral surface of the frame-shaped bracket 30.
U-shaped lever 40 having a cam groove 41 corresponding to 1.
It is composed of

In the present embodiment, the female connector housing 10 is inserted into the hood portion 21 of the male connector housing 20 for fitting connection. However, a pair of connectors that can be fitted to each other is formed. Any shape may be used. Further, either side may hold the terminal metal fitting on either side of the male and female. At three locations on the outer surface of the male connector housing 20, engagement projections 22 each comprising three projections 22a are provided.
A lock portion 31 having a lock arm 31a having flexibility is formed on the inner peripheral surface of the frame-shaped bracket 30 corresponding to the engagement convex portion 22. The lock arm 31a has a substantially plate shape extending along the opening axis direction of the bracket 30, and has a wedge-shaped projection 3
1a1 and is formed in a so-called seesaw shape that is connected to the inner peripheral surface of the bracket 30 at an intermediate portion of the outer surface. On both sides of the lock arm 31a, ridge-shaped guide projections 31b, 31b extending in the vertical direction are formed. On the other hand, two of the three protrusions 22a of the engagement protrusion 22 are disposed relatively lower with a space therebetween so as to contact the lower surfaces of the guide protrusions 31b, 31b. It is located relatively between and between the two projections 22a so as to be able to get over and engage with the projection 31a1 at the upper end. Therefore, when the male connector housing 20 is inserted upward from the lower side of the frame-shaped bracket 30, the intervening projection 22a deflects the lock arm 31a and rides over the upper end projection 31a1, and the same projection 31a1.
And the other two projections 22a,
22a abuts against the lower surfaces of the guide projections 31b, 31b, so that the male connector housing 20 is engaged and held inside the bracket 30. FIG. 3 shows the positional relationship between the two.

In this embodiment, the bracket 30 is formed in a frame shape and the male connector housing 20 is provided inside the bracket 30.
However, it is sufficient that at least the male connector housing 20 is mounted and held on a separate bracket 30, and the bracket 30 is necessarily frame-shaped and the male connector housing 20 is mounted inside. It doesn't have to be. For example, the bracket is formed in a plate shape, and the male connector housing 20 is mounted and held on the surface of the plate material. In this state, the female connector housing 10 is fitted and attached to the male connector housing 20. You may keep it. Also, in the method of fixing both, a configuration other than the above-described engagement convex portion 22 and lock portion 31 may be adopted.

A pair of support pins 32, 32 facing each other are erected at the center of the inside of the wall surface in the longitudinal direction of the bracket 30, and the arm portions 42, 42 at both ends of the lever 40 formed in a U-shape are provided. A shaft hole 4 into which the shaft support pins 32, 32 are inserted to be rotatably engaged with the ends.
2a and 42a are formed. As a result, the base 43 connecting the two arm portions 42 of the lever 40 can rotate in an arc from the upper end of the wall in one short direction to the upper end of the wall in the other short direction of the bracket 30. I have.

On the other hand, a distal end portion of the arm portion 42 is provided with a cam-shaped bulging portion 42b which bulges in a radial direction, and the cam-shaped bulging portion 42b has a spiral shape around the shaft holes 42a, 42a. Are formed.
The cam grooves 41, 41 have a spiral shape, so that one end is close to the shaft holes 42a, 42a, and the other end is open to the side surface of the arms 42, 42 and the introduction ports 42c, 4 are formed.
2c is formed. The inlets 42c, 42c are arranged in a line with the pivot pins 32, 32 when the base 43 is at the upper end of the wall in one short direction, and the female connector housing 10 is placed on the male connector housing 20 in this state. When they face each other, the cam pins 11, 11 are brought into the inlets 42c, 42c.
It becomes possible to enter the cam grooves 41, 41 more.

In this embodiment, the lever 40 is held inside the frame-shaped bracket 30, but it is sufficient that the lever 40 is held at least by the bracket 30, and it is not always necessary to mount the lever inside. good. However, if it is held inside, it will be sandwiched between the bracket 30 and the male connector housing 20, so that
There is no escape place even when trying to bend by applying force when retracting, and it is not necessary to attach a dedicated guide cover as in the related art. It goes without saying that the lever may be fitted by such a rotation operation utilizing the principle of leverage, and is not necessarily limited to the U-shaped lever as in the present embodiment. However, when the U-shaped lever 40 is rotated so as to be wound around the back side of the female connector housing 10, the female connector housing 10 can be easily pulled in evenly, and the workability is good.

The inner surface of the bracket 30 extends inward from the lower side of the shaft support pins 32, 32 and then bends upward to cover the coaxial support pins 32, 32 from the inside. Guide covers 33, 33
The lever 40 is supported from the inside when the lever 40 is engaged with the pivot pins 32, 32 so as not to fall off. Since the guide cover 33 does not need to suppress the lever 40 from trying to bend when subjected to a force,
It can be formed thin and does not increase in size. Of course, it is not necessary, but lever 4
This is effective for preventing the drop of zero.

The wall of the bracket 30 has a lever 40
Protection walls 34, 34 are formed so as to be able to protect the outside, so that foreign matter from the outside hardly hits directly. In addition, the bracket 30 has two frame holes, each of which has a male connector housing 20, a lever 40,
And the female connector housing 10 can be mounted, but may be one or more.
Next, the operation of the present embodiment having the above configuration will be described.
A harness is formed by attaching a terminal fitting (not shown) to the male connector housing 20 and the female connector housing 10 to form a harness, and is arranged at a predetermined position. At this time, since both connector housings 10 and 20 are not mounted, the handling is good.

A bracket 30 on which a lever 40 is mounted is prepared at a position where the two connector housings 10 and 20 are combined, and the male connector housing 20 is mounted on the bracket 30. As described above, when the male connector housing 20 is inserted from one side of the bracket 30, the engagement protrusion 22 and the lock portion 31 unite so that they cannot be separated. Thereafter, when the female connector housing 10 is faced from the opposite side and inserted into the hood portion 21, the cam pins 11 on the outer surface are
0, the inlets 42c, 42 formed in the arm portions 42, 42
When the lever 40 is rotated, the cam pins 1 are formed on the inner peripheral surfaces of the spiral cam grooves 41, 41.
The female connector housing 10 itself is drawn into the hood portion 21 of the male connector housing 20, and the two are united. Thereafter, the bracket 30 is attached to the vehicle body and fixed.

As described above, the male connector housing 20 of the female connector housing 10 and the male connector housing 20 of the male connector housing 20 which are combined with each other are fixed via the bracket 30 and the bracket 3
Since the female connector housing 10 is operated so as to be retracted while the lever 40 is mounted on the connector housing 0, the connector housing itself can be downsized compared with the case where the lever is provided, the handling is improved, and the necessary fitting is achieved. The resultant can be obtained using the lever.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a lever connector according to an embodiment of the present invention.

FIG. 2 is a plan view of a lever-type connector.

FIG. 3 is a cross-sectional view of the lever-type connector, taken along the line AA.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Female connector housing 11 ... Cam pin 20 ... Male connector housing 30 ... Bracket 32 ... Shaft support pin 40 ... Lever 41 ... Cam groove 42 ... Arm part 42a ... Shaft hole 43 ... Base part

Continuation of the front page (56) References JP-A-7-245150 (JP, A) JP-A-9-219249 (JP, A) JP-A 8-250206 (JP, A) JP-A 8-106949 (JP) JP-A-8-47142 (JP, A) JP-A-7-32876 (JP, U) JP-A-6-54253 (JP, U) Patent 3123421 (JP, B2) (58) Int.Cl. ⁷ , DB name) H01R 13/629 H01R 13/639 H01R 24/10

Claims (2)

(57) [Claims] 1. A connector housing having a cam pin on an outer surface thereof, another connector housing to which the one connector housing can be fitted, a frame-shaped bracket to which the other connector housing can be mounted, and the bracket And a lever provided with a cam groove corresponding to the cam pin, and by rotating the lever, the cam pin is pulled in on the inner peripheral surface of the cam groove, and in the lever-type connector to combine the connector housing, wherein the bracket comprises a plurality of frame apertures, while that is the lever and the two connector housings can be mounted in each of the wall surface of the bracket, the two connectors Pillow
Without the lever protruding before fitting of the
A protective wall covering the side of the lever-type connector is extended . 2. An inner surface of the bracket is provided with a pivot pin that engages with the lever and serves as a rotation center of the lever, and a lower portion of the inner surface of the bracket than the pivot pin. The lever-type connector according to claim 1, wherein a thin-plate-shaped guide cover is formed extending from the side toward the inside and bent upward to cover the pivot pin from inside.