JPH1140262A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit easy separation of a male and a female connector housing, which are fitted firmly to each other in the condition that a male and a female terminal are in connection. SOLUTION: The one connector housing 2 is equipped with a projection for pressure contact 4 having a guide slope 4a in the connector-fitting direction side, while the other connector housing 5 is furnished with a connector push-out arm 7 having a pressing part 6 for the guide slope. The first named connector housing 2 is equipped with a lock arm 3 having a lock part 15, while the other connector housing 5 is furnished with an engagement part 21 with respect to the lock part. The lock arm 3 and the connector pushout arm 7 are equipped with pressure manipulation parts 14 and 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector capable of easily detaching a male / female connector housing which is firmly fitted in a state where male / female terminals are connected.

[0002]

2. Description of the Related Art FIG. 6 shows a conventional connector. The connector 31 includes a male connector housing 33 made of a synthetic resin having a flexible lock arm 32 and a female connector housing 36 made of a synthetic resin having an engagement projection 35 which engages with a locking hole 34 of the lock arm 32. Including. The lock arm 32 is provided outside the male connector housing 33, and the engagement protrusion 35 is provided at the inside front end of the hood portion 37 outside the female connector housing 36.

A male connector housing 33 accommodates female terminals (not shown) with electric wires to constitute a male connector, and a female connector housing 36 also accommodates male terminals (not shown) and accommodates female terminals. Configure the connector. The male terminal is locked in the housing 36 by a flexible locking lance 38.

As shown in FIG. 7, when the male and female connectors (both connector housings 33 and 36) are fitted, the lock arm 32 is pressed downward by the engagement projection 35 and bends.
The lock arm 32 is restored at the same time when the engagement projection 35 is engaged with the locking hole 34, and the two connector housings 33 and 36 are restored.
Is locked.

The unlocking is performed by pressing the operating portion 39 of the lock arm 32 downward to bend the lock arm 32. That is, the connector housings 33 and 36 are pulled in the detaching direction while the operation section 39 is pressed.

[0006]

However, in the above-mentioned conventional structure, since the two connector housings 33 and 36 are pulled while the operating portion 39 of the lock arm 32 is pressed, a force is hardly applied. -If both connectors were firmly fitted in the connection state of the female terminal, it could not be easily detached.

[0007] In view of the above, an object of the present invention is to provide a connector that can be easily detached.

[0008]

In order to achieve the above object, according to the present invention, one connector housing is provided with a pressing projection having a guide inclined surface on the connector fitting direction side,
The other connector housing is basically provided with a connector pushing arm having a pressing portion against the guide inclined surface (claim 1). It is also possible that the one connector housing is provided with a lock arm having a locking portion, and the other connector housing is provided with an engaging portion for the locking portion (claim 2). The lock arm and the connector pushing arm each have a pressing operation portion (claim 3).

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 to 3, a connector 1 according to the present invention includes a male connector housing 2 provided with a flexible lock arm 3 and a pressing projection 4 having a guide inclined surface 4 a.
In addition, a flexible connector pushing arm 7 having a pressing protrusion (pressing portion) 6 for the projection 4 is provided.

The connector housings 2 and 5 are formed of a synthetic resin. Each connector housing 2 and 5 accommodates a terminal (not shown) with an electric wire, thereby forming the connector 1. The lock arm 3 which is supported at both ends is provided on an upper wall 8 of the male connector housing 2.

That is, a pair of arm bases 9 and 10 are located on the front end side and the rear end side of the upper wall 8, respectively.
Each of the operating portions 14 protrudes from the arm 10 and has a groove 13 for preventing slippage inside the rear arm portion 12.
Are connected, and the front end of the operation unit 14 is connected to the rear end of the arm unit 11 on the front side. A locking hole (locking portion) 15 is provided between the pair of arms 11 and 11 in front of the operation portion 14, and a connecting portion 16 is located at the center of the arm 11 adjacent to the locking hole 15. I have.

Further, the pressing projection 4 is disposed between the pair of arms 11 on the front side of the connecting portion 16. The protrusion 4 is provided on the housing upper wall 8 and has the guide inclined surface 4a on the front side (facing the connector fitting direction).

The height of the projection 4 is set lower than the upper surface of the arm portion 11 and the lower surface of an engagement projection 17 (described later) on the female connector housing 5 side as shown in FIG. The projection 4 does not come into contact with the pressing projection 4. The width of the projection 4 is a pair of the arm portions 1 as shown in FIG.
It is set sufficiently wide between 1 and 11.

The angle of the guide inclined surface 4a is set to, for example, about 50 °. If this angle is 45 ° or less,
When the pressing projection 6 presses the inclined surface 4a, the component force in the connector detaching direction is reduced, and the connector housing 2 is less likely to come off. Therefore, it can be said that the inclination angle is preferably 45 ° or more.

A hood 19 is provided on the upper wall 18 (FIG. 1) of the female connector housing 5 in the same manner as in the prior art.
At the inner front end of the upper wall 9, an engaging projection (engaging portion) 21 for the locking hole of the lock arm 3 is provided. It is preferable that a guide chamfer is provided at a lower portion of the front end of the engaging projection 21. When the connector is fitted, the engagement protrusion 21 slides through the inside of the arms 11 and 11 and comes into sliding contact with the connecting portion 16 to deflect the lock arm 3 downward.

The upper wall 20 of the hood 19 is cut in the rear half, and the pressing operation part 23 of the connector pushing arm 7 is located in the notch hole 22. As in the case of the lock arm 3, a groove 24 for preventing slippage is formed in the operation portion 23 in the transverse direction.

On the back side of the operation section 23, the rectangular pressing projection 6 is integrally formed on the front side. Pressing projection 6
The height of the lower end is set to be approximately the same as or slightly lower than the height of the pressing projection 4, and the pressing projection 21 is positioned above the guide inclined surface 4 a of the projection 4 when the connector is completely fitted.
Alternatively, it is located in contact with the guide inclined surface 4a.

The operating portion 23 is connected to a cantilevered arm portion 25, and the arm portion 25 is folded back in a substantially U-shape and connected to the housing upper wall 18. The arm portion 25 is different from the lock arm 3 and has a single narrow width, so long as it has an elastic force enough to restore the operation portion 23.

FIG. 4 shows a connector fitting state, in which the engagement projection 21 of the female connector housing 5 is engaged with the locking hole 15 of the lock arm 3 of the male connector housing 2 and the connector pushing arm 7 is pressed. The protrusion 6 is located close to the guide inclined surface 4 a of the pressing protrusion 4. Protrusion 4
Is located within the thickness range of the arm 11. With the connector fitted, the lance 26 in the female connector housing 5
And the female terminal (not shown) in the male connector housing 2 is completely connected.

To detach the connector (connector housing 2), the operating portion 14 of the lock arm 3 is pushed downward with, for example, a right hand to bend the arm portions 11 and 12, and the locking hole 1
At the same time as the engagement projection 21 is disengaged from the connector 5, the operating portion 23 of the connector pushing arm 7 is pressed downward with the left hand.

5 (a) and 5 (b), the lower front end 6a of the push-contact projection 6 of the connector push-out arm 7 moves the guide inclined surface 4a of the push-contact projection 4 of the male connector housing 2 in the direction of an arrow a. As shown in the arrow B, a component force is generated in the protrusion 4 in the connector detaching direction. Male connector housing 2
Is pushed out of the female connector housing 5 by the component force in the detaching direction. This extrusion distance is shorter than the length of the projection 4.

The connector (connector housing 2) is easily pulled out by pulling both connector housings 2 and 5 in the detaching direction simultaneously with the pushing operation. If the mating force (adhesion force) of the connector is not so large,
Even if the connector housings 2 and 5 are not pulled, the connector housing 2 overcomes the starting resistance and initially moves in the detaching direction only by the pressing operation of the connector pushing arm 7. Thereafter, the connector housing 2 can be easily pulled out by hand. Since it is not necessary to pull the connector housings 2 and 5 with a strong force, there is no possibility of interference with the outside or erroneous disconnection of the connector.

Note that this structure can be used as an auxiliary function when the detaching operation is difficult, and it is of course possible to release the lock and pull out each other as in the case of a general connector.

[0024]

As described above, according to the first aspect of the present invention, by pushing the connector push-out arm in the fitted state of the connector, the pushing portion pushes against the inclined guide surface and the projection comes into contact with the projection in the connector detaching direction. Since a component force is generated, the connector can be easily pulled out by a pulling operation by hand. According to the second and third aspects of the present invention, the unlocking operation (pressing operation) of the lock arm and the pressing operation of the connector push-out arm are performed simultaneously with both hands, so that the operation of extracting the connector can be performed smoothly and reliably. Can be done.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a connector according to the present invention.

FIG. 2 is a plan view showing the connector.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a longitudinal sectional view showing a connector fitting state.

FIG. 5 (a) is an initial state of the connector pushing arm, and (b)
FIG. 7 is an operation explanatory view showing a pressing operation state.

FIG. 6 is a longitudinal sectional view showing a conventional example.

FIG. 7 is a longitudinal sectional view showing the same connector fitting state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector 2 Male connector housing 3 Lock arm 4 Pushing projection 4a Guide inclined surface 5 Female connector housing 6 Pressing portion (pressing protrusion) 7 Connector pushing arm 14, 23 Pressing operation portion 15 Locking portion (locking hole) 21 Engagement part (engagement protrusion)

Claims (3)

[Claims] 1. One connector housing is provided with a pressing projection having a guide inclined surface on the connector fitting direction side,
A connector characterized in that a connector pushing arm having a pressing portion against the guide inclined surface is provided on the other connector housing. 2. A connector according to claim 1, wherein said one connector housing is provided with a lock arm having a locking portion, and said other connector housing is provided with an engaging portion for said locking portion. The connector described. 3. The connector according to claim 2, wherein the lock arm and the connector pushing arm each have a pressing operation portion.