JPH0635389Y2 - Connector terminal locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a terminal locking device for a connector used for electric wiring of an automobile.

[Conventional technology]

As shown in FIGS. 10 and 11, at the rear end of the connector housing A having a plurality of terminal accommodating chambers a, an accommodating chamber b for the frame-shaped terminal engaging device B is provided, and the terminal engaging device B is accommodated in the accommodating chamber. It is detachably attached to b.

Similar to the connector housing A, the terminal locking tool B is formed of a synthetic resin material as a Y-shaped frame, and has a common side c.
The two outer side edges d, d and the intermediate side edge e are integrally connected to each other, and the terminal metal fitting C is connected between the two opposite side edges d, d and the intermediate side edge e. The two insertion grooves f of the electric wire D,
The f is formed, and the edge portions of the opposing side parts d, d facing the insertion groove f, f and the intermediate side part e are engaged with the rear end of the terminal fitting C to prevent the terminal fitting from coming off.

In the terminal locking device B, flexible locking pieces g, g are provided on the outer sides of the opposite side parts d, d, and the locking projections h, h when inserted into the accommodation chamber b, engage the connector housing A. Engage with the stop holes i, i.

[Problems to be solved by the device]

In the above-mentioned conventional example, since the terminal locking tool B is locked to the connector housing A by the two flexible locking pieces g, g, when the terminal locking tool B is removed, the flexible locking pieces g, g
You need to do 2 times to release g one by one,
There is a drawback in that it takes time to remove the terminal locking device.

The present invention has been made in view of the above points, and it is possible to easily detach the terminal locking device from the connector housing by one operation even when there are a plurality of locking pieces. It is a thing.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention comprises a connector housing having a storage chamber opened at the rear end at the rear end and a terminal locking device that is detachably locked to the storage chamber. A pair of opposing side portions is provided on the locking tool, and a flexible free end portion of the opposing side portion and a locking projection that locks one side to the other side of the connector housing portion facing the outside of the free end portion. And a tapered receiving surface facing the free end portion in the connector housing portion in the extension direction of the facing side portion, wherein the free end portion is tapered when the terminal locking member moves in the extension direction. A structure is adopted in which the locking projection disengages from the locking by displacing inward by abutting against the receiving surface, and the terminal locking tool is provided with a pair of facing sides. Flexible part of the side part and the flexible part Of the connector housing portion facing the outside of the flexible portion, one of which is provided with a locking projection for locking the other,
On the other hand, a tapered receiving surface is provided for the locking projection, and the locking projection abuts against the receiving surface when the terminal locking member moves in the extension direction of the terminal locking member, thereby displacing it. A structure is adopted in which the locking projection releases the locking.

〔Example〕

In FIG. 1, A ₁ is a connector housing made of synthetic resin having a plurality of terminal accommodating chambers 1, and has an accommodating chamber 2 for the terminal locking device B ₁ at the rear end portion. The accommodation chamber 2 is opened rearward, and the terminal locking tool B is attached to and detached from the accommodation chamber 2 from the rear direction.

The terminal stopper B ₁ made of synthetic resin is formed as a Y-shaped frame, and the opposing side portions 4 and 4 and the intermediate side portion 5 are integrally connected to each other on one side of the common side portion 3 to form two pieces. Between the opposing side portions 4, 4 and the one intermediate side portion 5, two insertion grooves 6, 6 for the electric wire (not shown) connected to the terminal fitting (not shown) are formed, and as described above. Further, the edge portions of the opposing side portions 4, 4 facing the insertion grooves 6, 6 and the intermediate side portion 5 are engaged with the rear ends of the terminal fittings to prevent the terminal fittings from coming off.

Locking protrusions 4a, 4a having a tapered driven surface 4a ₁ are provided on the outside of the free ends of the flexible opposite side parts 4, 4 and the extension direction at the free end of the intermediate side part 5 Locking projections 3a, 5a are respectively provided in the middle of the common side portion 3, and locking holes for the locking projections 3a, 4a, 5a are formed in the peripheral wall 7 of the housing chamber 2 of the connector housing A on the other hand. 7a, 7b, 7c are formed, 2
Adjacent to the two locking holes 7b, 7b formed at the facing positions of the peripheral wall 7 so as to correspond to the locking protrusions 4a, 4a
Tapered receiving surfaces 7d, 7d are formed at the corners of the peripheral wall 7 in the extending direction of 4,4.

In the above configuration, the terminal locking device B ₁ has the locking projections 3a, 4
a, 5a are locked in the locking holes 7a, 7b, 7c of the peripheral wall 7, and the opposite side portions 4,
It is used in a state where the free end portions 4b, 4b of 4 are accommodated in the accommodating chamber 2 of the connector housing A ₁ in a state of being brought close to the tapered receiving surfaces 7d, 7d (Figs. 2 (a) and 3 ( a)).

Then, when removing the terminal locking tool B ₁ , when the terminal locking tool B ₁ is pressed in the direction of the free end of the Y-shaped frame by a jig, the free ends 4b, 4b of the opposite side parts 4, 4 are removed. The locking projections 4a, 4a are flexibly displaced inward by the tapered receiving surfaces 7d, 7d so that the locking projections 4a, 4a are locked in the locking holes 7b, 7b.
While moving away (Figs. 2 (b) and 3 (b)),
In this state, the common side portion 3 is moved outward F and removed (FIG. 3 (c)).

FIG. 4 shows another embodiment of the present invention. In this example,
Connector housing A ₁ is the same as in the case of FIG.
Opposite side portions 4 in the terminal locking device B ₂ ', 4' are be formed thick, is formed 'deformable skirt portion 4d by' grooves 4c in the free end, the outer movable Shiwahen portion 4d ' A locking projection 4a 'is formed on the.

In the embodiment of FIG. 5, the common sides 3 of the terminal locking device B ₃
A cover piece 3b for restraining the common side portion 3 is provided inside the peripheral wall 7 of the connector housing A ₂ without providing a locking protrusion.

In the embodiment shown in FIG. 6, the terminal locking member B ₄ has a common side portion 3
Is formed as a U-shaped frame by providing only the opposite side portions 4 ″, 4 ″, and the tapered driven surface 4a ₁ ″ is formed in the middle of the flexible opposite side portions 4 ″, 4 ″. Locking projection 4 with
a "is projected, and locking projections 4b", 4b "are projected in the extension direction at the free end. On the other hand, the peripheral wall 7 of the connector housing A ₃ corresponds to the locking projections 4a", 4a ". Then, the locking holes 7b, 7b having the tapered receiving surfaces 7b ₁ , 7b ₁ are formed, and the locking holes 7c, 7c are formed corresponding to the locking protrusions 4b ″, 4b ″.

In the above configuration, the terminal locking device B ₄ is attached to the connector housing.
When the U-shaped frame is pressed toward the free end by a jig from the state of being attached to A ₃ (Fig. 7 (a)), the tapered receiving surface 7b ₁ of the locking hole 7b causes the tapered driven surface 4a ₁ to move. The locking projection 4a "is driven via the ″, and the locking projection 4a ″ displaces the locking hole 7b while flexibly displacing the intermediate portion of the opposing side portion 4 ″, thereby moving the U-shaped frame. (Fig. 7 (b)), and remove as described above.

In the embodiment shown in FIG. 8, the terminal engaging member B ₅ has an opposite side portion 4 ″,
A thin-walled flexible piece 4e ″ is provided in the middle of 4 ″ to prepare for flexible deformation, and the locking projection 4a ″ is projected on the thin-walled flexible piece 4e ″.

In the embodiment shown in FIG. 9, the terminal locking member B ₆ has the opposite side portions 4 ″,
The free ends of 4 ″ are formed into a square shape by being integrated by a connecting portion 4f ″.

In each of the above embodiments, the locking projection is provided on the terminal locking tool and the locking hole is provided on the connector housing. However, the locking projection may be provided on the connector housing and the locking hole may be provided on the terminal locking tool. Good.

[Effect of device]

Since the present invention is configured as described above, the terminal locking device having a plurality of locking protrusions can be removed from the connector housing by a simple operation.

[Brief description of drawings]

FIG. 1 is a perspective view of a connector housing and a terminal locking device separated from each other according to an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are plan views of the terminal housing combined with the connector housing. Figure (a) and a plan view (b) showing a state in which the terminal locking member is moved for removal, and Figs. 3 (a), (b) and (c) show a process of removing the terminal locking device from the connector housing. Sectional views shown in FIGS. 4 and 5 are perspective views of the connector housing and the terminal locking device in a state where they are separated from each other, respectively, and FIG. 6 is a state where they are separated from each other in another embodiment of the present invention. FIG. 7 (a) and FIG. 7 (b) are perspective views of the connector housing and the terminal locking device. FIG. 7 (a) and FIG. FIG. 8B is a plan view showing the state in which the 9 (a) and 9 (b) are plan views similar to the above for still another embodiment, FIGS. 9 (a) and 9 (b) are plan views similar to those described above for still another embodiment, and FIG. FIG. 11 is a perspective view in a similar separated state, and FIG. 11 is a sectional view in the engaged state of the same. A ₁ , A ₂ , A ₃ … Connector housing, B ₁ , B ₂ , B ₃ , B ₄ , B ₅ , B ₆ …
Terminal locking device, 2 ... accommodation chamber, 4,4,4 ', 4 "... opposing sides, 4a,
4a ′, 4a ″… Locking projections, 7b ₁ 7d… Tapered receiving surface.

Claims (2)

[Scope of utility model registration request] 1. A connector housing having a housing at the rear end that is open to the rear, and a terminal locking device that is detachably locked to the housing, and a pair of opposite sides of the terminal locking device. A flexible free end portion of the facing side portion, and a locking projection that locks one side to the other side of the connector housing portion facing the free end portion outside the free end portion, and extends the facing side portion. By providing a tapered receiving surface facing the free end portion in the connector housing portion in the direction, the free end portion abutting the tapered receiving surface when the terminal locking device moves in the extension direction. A terminal locking device for a connector, wherein the locking projection disengages from the locking by being displaced inward. 2. A connector housing having a housing chamber opened at the rear portion at a rear end portion, and a terminal locking member that is detachably locked to the housing chamber, and a pair of opposing sides of the terminal locking member. And a locking projection for locking the other side of the flexible side portion of the facing side portion and the connector housing portion facing the outside of the flexible side portion to the other side. A taper-shaped receiving surface is provided for the stopper projection, and when the terminal locking member moves in the extension direction of the opposing side portion, the locking projection abuts against the receiving surface to displace the locking projection. A terminal locking device for a connector, characterized in that the locking is released.