JPH07272791A - Low fitting force connector - Google Patents

Abstract

PURPOSE:To provide fitting and separating with small force by operating a fitting stop member, by providing a rib stop contact surface vertically or in a descending slope to a direction of inserting a male housing, in a rib storage part provided in the fitting stop member. CONSTITUTION:When a male housing 30 is inserted into a female housing 10, a rib 31 is brought into contact with a sloped part 22 in a fitting stop member 20. Further when the housing 30 is pressed in to an inserting direction, the stop member 20 is pressed by the rib 31 and lifted upward. Next, the rib 31 hits a stopper 25 of the stop member 20, to once stop moving the housing 30. When the stop member 20 is pressed in downward, the rib 31, while coming into contact with an inner side surface of a rib storage part 23, is placed in the storage part 23. Simultaneously, by pressing the rib 31 in the inserting direction by the stop member 20, the housing 30 is placed in to be fitted to the housing 10. Here, a rib stop contact surface 23a of the storage part 23, when placed vertically or in a descending slope to a direction of inserting the housing 30, facilitates fitting and separating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for connecting electric wiring of an automobile, and a pair of housings facing each other, particularly a multipolar connector, are fitted and released by operating a fitting and locking member. It relates to an electrical connector.

[0002]

2. Description of the Related Art As is known from Japanese Utility Model Laid-Open No. 3-74483 shown in FIG. 8, a conventional electrical connector has been constructed such that a pair of housings facing each other are engaged and disengaged by operating a fitting and locking member. , A female housing 40 made of synthetic resin, a male housing 50 made of synthetic resin, and a cam member 60 for fitting operation made of synthetic resin.
Terminal fittings (not shown) are housed in the respective 0s. The fitting locking member 60 is inserted into the sleeve 41 of the female housing 40 through the opening 42 on one side. Sliding plate portions 61, 61 are formed in a bifurcated shape with respect to the operating portion 65 of the fitting locking member 60, and two drive protrusions 63 are provided on the inner surface of the sliding plate portions 61, 61 so as to project. . The fitting locking member 60 is prevented from being detached from the female housing 40 by a temporary locking piece 62 that has passed over the opening 42 by press fitting. On the opposite outer surfaces of the male housing 50, a tapered driven groove 51 is formed following the introduction groove 52, and outside the introduction groove 52, the taper driven groove 51 is forcibly expanded to a regular position in a tapered direction. A tapered drive portion 53 for returning is formed.

[0003]

In the above-mentioned prior art, a force is applied in the pulling direction of the female and male housings 40 and 50 in a state where the female and male housings 40 and 50 are fitted to each other. In this case, the tapered driven groove 51 comes into contact with the drive protrusion 63, the force is transmitted in the direction in which the fitting locking member 60 is disengaged, and the engaging portion 64 that has been locked by the main locking piece 43 is unlocked. There is a problem that the housing 50 is separated from the female housing 40.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a pair of housings facing each other can be fitted and separated with a small force by operating a fitting and locking member, and the housings can be fitted together. A low mating force connector that ensures engagement and retention of lock.

[0005]

In order to achieve the above-mentioned object, the present invention comprises a fitting locking member, a female housing and a male housing, and the female housing has a fitting locking member insertion groove. The fitting locking member is fitted in the fitting locking member insertion groove, and the male housing is provided with ribs that are inclined upward in the insertion direction. The rib locking contact surface of the portion is provided so as to be vertical or inclined downward in the insertion direction of the male housing. The second aspect of the present invention is characterized in that the rib locking contact surface is provided with a locking projection for locking the rib.

[0006]

As described above, according to the low fitting force connector of the present invention, the fitting locking member 20 is pushed into the female housing 10,
By pressing the rib contact piece 24 against the rib 31, the male housing 30 can be pulled into the female housing 10 with a small force. At the same time, when the female and male housings 10 and 30 are completely fitted together, the rib 31 is housed in the rib housing portion 23, so that the ribs are connected to the female and male housings 10 and 30. When a force is applied to the housing in the detaching direction due to a tensile force acting on the terminal-equipped electric wire, the rib 31 comes into contact with the rib locking contact surface 23a provided perpendicularly to the inserting direction or at the descending inclination, and the female and male It is possible to prevent the detachment of both housings 10 and 30. Furthermore, if a protrusion 26 that can prevent the rib 31 from coming off the rib housing portion 23 is provided at the end of the rib locking contact surface 23a, for example, the rib 31 can be prevented from coming off the rib housing portion 23. .

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 1, the low fitting connector of the present invention comprises a fitting locking member 20, a female housing 10 and a male housing 30.
Terminal fittings (not shown) are housed in the respective 30. The fitting locking member 20 is made of synthetic resin and has guides 21 provided with locking claws 21a and slip-off preventing locking claws 21b on both left and right sides. The locking claws 21a are provided for locking when the fitting locking member 20 is completely fitted into the female housing 10. In addition, the locking claw 21b for preventing slipping out
Is provided so that the fitting locking member 20 does not fall out even when an unexpected external force is applied to the female housing 10 when the female and male housings 10, 30 are not fitted to each other. Further, a rib contact piece 24 having an inclined portion 22 and a rib accommodating portion 23 is provided inside the guide 21. Female housing 10
Is made of synthetic resin and has a fitting locking member insertion groove 11 into which the fitting locking member 20 is inserted and fitted.
It is provided on both the left and right sides of. The fitting locking member insertion groove 11
Is a slip-out prevention locking portion 1 that locks the slip-out prevention locking claw 21b.
1b, and a locking groove 11a for locking the locking claw 21a. The male housing 30 is made of synthetic resin and provided with ribs 31. When the rib 31 is fitted to the female housing 10, the rib contact piece 2 of the fitting locking member 20 is fitted.
4 has a rib locking contact surface 23a which is arranged so as to come into contact with the No. 4 and is inclined upward in the insertion direction of the male housing 30.
Hereinafter, the movement of each part when the low fitting force connector of the present invention is fitted will be described with reference to FIGS. As shown in FIG. 2, when the male housing 30 is inserted into the female housing 10, first, the rib 31 comes into contact with the inclined portion 22 of the fitting locking member 20. Further, when the male housing 30 is pushed in in the insertion direction, the fitting locking member 20 is pushed by the rib 31 and pushed upward. Next, as shown in FIG. 3, the rib 31 hits the stopper portion 25 of the fitting locking member 20, and the movement of the male housing 30 in the insertion direction is temporarily stopped. next,
When the fitting locking member 20 is pushed downward as shown in FIG. 4, the rib 31 enters the rib housing portion 23 while contacting the inner surface of the rib housing portion 23. At the same time, the rib 31 is pushed by the fitting locking member 20 in the inserting direction, so that the male housing 30 enters the female housing 10 and is completely fitted. FIG. 5 is a cross-sectional explanatory view showing a completely fitted state. Further, FIG. 6 shows an external perspective view of FIG. Figure 7
Shows a sectional explanatory view showing another embodiment. As shown in this figure, a locking projection 26 is provided on the rib locking contact surface 23a. The locking projections 26 are provided in female and male housings 40, 5
Both female and male housings 40, 50 after 0 is completely fitted
When a pulling force is applied to the electric wire with a terminal connected to the
The rib 31 is caught on the locking projection 26 on the a,
The male housings 40, 50 are prevented from coming off. In addition,
It is desirable in design that the locking projection 26 is located at the open end of the rib locking contact surface 23a.

[0008]

As described above, according to the low fitting force connector of the present invention, as described above, the male and female housings are fitted into and separated from each other by operating the fitting and locking member. Since the force to be applied is small, the worker's labor is reduced in the connector assembling work, and the provision of the rib storage section causes tensile force to be applied to the electric wire with terminals connected to both female and male housings. When a force is applied to the housing in the detaching direction, the rib comes into contact with a rib locking contact surface that is provided perpendicularly to the inserting direction or on the descending slope,
It is possible to prevent the detachment of both the female and male housings.
Further, if a protrusion capable of preventing the rib from coming off the rib housing portion is provided at, for example, the end of the rib locking contact surface, it is possible to prevent the rib from coming off the rib housing portion.
It has the great advantage of being able to engage and disengage the female and male housings safely and securely.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a low fitting force connector of the present invention.

FIG. 2 is an explanatory cross-sectional view of the low fitting force connector of the present invention when half-fitted.

FIG. 3 is an explanatory cross-sectional view of the low fitting force connector of the present invention when half-fitted.

FIG. 4 is an explanatory cross-sectional view of the low fitting force connector of the present invention when half-fitted.

FIG. 5 is an explanatory cross-sectional view showing the low mating force connector of the present invention when completely mated.

6 is an external perspective view of FIG. 5 of the present invention.

FIG. 7 is a cross-sectional explanatory view showing another embodiment of the low fitting force connector of the present invention at the time of complete fitting.

FIG. 8 is an exploded perspective view of a conventional electric connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Female housing 11 ... Fitting locking member insertion groove 11a ... Locking groove 11b ... Fall-out prevention locking part 20 ... Fitting locking member 21 ... Guide 21a ... Locking claw 21b ... Fall-out preventing claw 22 ... Inclined part 23 ... rib storage part 23a ... rib locking contact surface 24 ... rib contact piece 25 ... stopper part 30 ... male housing 31 ... rib

Claims (2)

[Claims] 1. A fitting locking member (20) and a female housing (1)
0) and a male housing (30), and the female housing (10) is a fitting locking member insertion groove (11).
The fitting locking member (20) is fitted in the fitting locking member insertion groove (11), and the male housing (30) has a rib (31) inclined upward in the insertion direction. And the rib locking contact surface (23a) of the rib accommodating portion (23) provided on the fitting locking member (20) is provided vertically or inclined downward in the insertion direction of the male housing (30). A low mating force connector characterized in that 2. A rib (3) is provided on the rib locking contact surface (23a).
2. The low fitting force connector according to claim 1, further comprising a locking projection (26) for locking to (1).