JP3120729B2 - Connector with wire cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector with an electric wire cover.

[0002]

2. Description of the Related Art A connector disclosed in Japanese Utility Model Laid-Open No. 62-65778 is known as an example of this type of connector with an electric wire cover. This comprises a housing 31 having a plurality of cavities 32, as shown in FIGS.
A cover 33 is provided at one end of the rear surface of the housing 31 so as to be swingable by a hinge 34. To use this connector, first, a terminal fitting fixed to the end of the electric wire 35 is mounted in each cavity 32, and then each electric wire 35 pulled out from the rear surface of the housing 31 is bent at a right angle to extend forward. Subsequently, as shown in FIG. 8, the cover 33 is swung to cover the lead-out portion of the electric wire 35, and the cover 33 is locked to the housing 31 by the lock member 36. Thereby, the cover 33 covers the lead-out portion of each electric wire 35 to prevent dust and the like from entering therethrough, and also collectively extends each electric wire 35 in a predetermined direction.

[0003]

By the way, in the above-mentioned connector, before the cover 33 is put on, the drawn out electric wires 35 are bent toward the front side while collecting them together so as to fit in the cover 33. Is performed. This work is not a complicated operation such as wrapping tape around the electric wire 35 and fixing it, but is a simple operation such that an operator usually grasps the electric wire 35 by hand and suppresses the variation. Therefore, some of the wires 35 that could not be grasped
When the cover 33 was put on, the electric wire 35 was often caught between the housing 31 and the cover 33. Since the cover 33 cannot be properly attached when the electric wire 35 is bitten in this way, there is a trouble that the cover 33 must be once returned, the electric wires 35 must be assembled again, and the cover 33 must be re-covered again.

[0004] As another problem different from the above, in the related art, for example, due to the harness layout, the cover 3 is not provided.
If the group of electric wires 35 coming out of the outlet 37 of FIG. 3 is immediately bent in the direction shown by the arrow in FIG. 8, the lock of the lock member 36 may be unlocked while the side wall of the cover 33 bends and expands.

The present invention has been completed in view of the above circumstances and provides a connector with an electric wire cover capable of preventing both biting of an electric wire and inadvertent spread of a cover. The purpose is to:

[0006]

As means for achieving the above object, the invention of claim 1 is directed to a connector housing from which a plurality of electric wires are drawn from a wire drawing surface, and a connector housing for covering the wire drawing surface. In a connector with an electric wire cover having a cover that is fitted to the connector housing while the electric wire is drawn out to the side, the electric wire extraction surface is provided on both side edges of the electric wire drawing surface with the electric wire located inside the side wall of the cover. And a spread prevention piece which is located outside the side wall of the cover and prevents the side wall from spreading .
And the biting prevention piece is an inner surface of the spread prevention piece.
The side wall of the cover
Has a relief groove to allow the bite prevention piece to be inserted.
The side wall of the cover bites into the escape groove
Inserting the prevention piece and fitting it inside the spread prevention piece,
The inwardly protruding end of the bite prevention piece is inside the side wall of the cover.
The feature is that it is set to protrude in the direction .

[0007]

[0008]

<Operation and effect of the invention><Invention of claim 1> The side wall of the cover is inserted into the escape groove while the prevention member is inserted.
The anti-spreading piece is fitted inside the anti-spreading piece,
Has an inwardly projecting end projecting more inward than the side wall of the cover. I
Therefore, when the wires are put together on the wire outlet surface,
If wires are inserted inside the protruding end of the
When the bar is covered, the electric wire does not bite. Again
After the bar is attached, the wire group
When a load is applied in a direction that intersects the exit direction, the side wall of the cover
The force that spreads it acts on the outside of the side wall
Has an anti-spreading piece so it hits it
This prevents the side wall from expanding. With the spread prevention piece
Because the anti-jaw piece is formed integrally,
Can be summarized in a structure.

[0009]

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIG. As shown in FIG. 1, the connector of this embodiment includes a female connector housing (hereinafter simply referred to as a female housing) 1 and a cover 2. The female housing 1 is formed of a synthetic resin material into a flat block shape, and a plurality of cavities 3 penetrating in the front-rear direction are formed in a multi-stage alignment inside the female housing 1. The female terminal fitting fixed to the terminal is inserted and accommodated from the rear side (the surface shown in FIG. 1). Therefore, after the female terminal fitting is attached, the electric wire 4 is drawn out from the rear surface side of the female housing 1, and the rear surface is the electric wire drawing surface 5 according to the present invention.

A cover 2 can be attached to the wire lead-out surface 5 of the female housing 1 so as to cover it. The cover 2 is also formed of a synthetic resin material in the shape of a box, and can accommodate the electric wires 4 therein, as will be described in detail later, and has an opening on the side corresponding to the electric wire lead-out surface 5 of the female housing 1. 6, and a surface at one end side in the length direction is opened to form an outlet 7 of the electric wire 4.

The above-mentioned cover 2 is formed to be slightly larger than the female housing 1, and the periphery of the opening 6 is fitted over the periphery of the electric wire lead-out surface 5 of the female housing 1, and is fitted by a predetermined amount. Where it is locked. Therefore, lock pieces 9 are provided at the opening edges of the left and right side walls 2a of the cover 2 at two locations, one on the outlet 7 side and the other on the opposite end. This lock piece 9
It is formed in a frame shape, the inside is a locking hole 10, and the slits 11 are cut on both sides, so that it can be elastically deformed.

On the other hand, lock projections 13 are formed on the left and right side surfaces of the female housing 1 at the edges corresponding to the wire lead-out surface 5 at positions corresponding to the lock pieces 9 of the cover 2 described above. An end surface (upper surface in FIG. 4) of the lock protrusion 13 on the electric wire lead-out surface 5 side is an inclined guide surface 14. That is, when the cover 2 is put on the electric wire drawing surface 5 of the female housing 1, the lock piece 9 is bent and deformed and rides on the lock protrusion 13 from the guide surface 14 and is pushed in.
When the lock piece 9 is pushed in by a predetermined amount, the lock hole 9 of the lock piece 9 corresponds to the lock protrusion 13, and as shown in FIG. Thus, the cover 2 is locked in a retaining state.

On the left and right side edges of the electric wire lead-out surface 5 of the female housing 1, two ribs 16 (for preventing the spread of the present invention) are provided at positions corresponding to the positions where the lock projections 13 are provided. (Corresponding to a piece). Each rib 1
6 has a predetermined thickness and height. In addition, each rib 1
Projecting pieces 17 (corresponding to the biting prevention pieces of the present invention) are integrally provided on the inner surface of 6 so as to form a T-shaped cross section.

On one cover 2 side, the left and right side walls 2
The portion corresponding to the upper part of the lock piece 9 in FIG. 5A is depressed to the inner surface side, and is formed in a groove shape having a width in which the rib 16 on the female housing 1 side can be inserted. Here, the interval between the outer surfaces of the corresponding depressed wall surfaces 19 on the left and right is set substantially equal to the interval between the inner surfaces of the corresponding ribs 16 on the left and right of the female housing 1. The projecting piece 17 protruding from the inner surface is
It has a protruding length that is greater than the wall thickness. In addition, a slit 20 is formed in the depressed wall surface 19 so that a corresponding projection piece 17 is fitted to and released from the lower wall. The slit 20 has a function as a guide when covering the cover 2 together with the protruding piece 17.

That is, the cover 2 is placed on the wire drawing surface 5 of the female housing 1 while the projections 17 are fitted in the slits 20 and the ribs 16 extend along the outside of the recessed wall surface 19. The pushing is stopped when the surface 5 is hit, and the above-mentioned lock is applied in synchronization with the timing.

This embodiment has the above-described structure,
Subsequently, the procedure of the assembling will be described. First, in each cavity 3 of the female housing 1, a female terminal fitting fixed to the end of each electric wire 4 is inserted from the electric wire drawing surface 5 side and housed in a state where it cannot be removed. Subsequently, as shown in FIG. 2, the electric wires 4 drawn out from the electric wire outlet surface 5 are bent and extended toward the near side of FIG. At this time, a total of four protruding pieces 17 are provided on the left and right side edges of the electric wire lead-out surface 5, so that each electric wire 4 is housed inside the inwardly protruding end of the protruding piece 17.

Subsequently, as shown by arrows in FIGS. 2 and 4, the cover 2 is put on the wire drawing surface 5 of the female housing 1 from which the wire 4 is bent and drawn. The cover 2 is fitted with the protruding pieces 17 on the female housing 1 side into the corresponding slits 20 of the recessed wall surface 19, and is pushed in with the ribs 16 along the outside of the recessed wall surface 19. In the meantime, the lock piece 9 of the female housing 1 is deformed while the lock piece 9 of the cover 2 is flexibly deformed.
Ride on 3. When the lower edge of the depressed wall surface 19 hits the wire outlet surface 5, the pushing is stopped, and
When the lock projection 9 is fitted into the locking hole 10 while the lock piece 9 is being restored and deformed, the cover 2 is locked in a retaining state.

Here, the innermost part of the cover 2 protrudes inwardly from the depressed wall surface 19 in the left and right side walls 2a, and the outer surface of the depressed wall surface 19 is fitted along the inner surface of the rib 16, and 17 is set to be larger than the thickness of the depressed wall surface 19, when the cover 2 is covered, as shown in FIGS. The protruding end protrudes more inward than the inner surface of the depressed wall surface 19. And, as described above, since each electric wire 4 is housed inside the protruding piece 17, the depressed wall surface 19 of the cover 2 passes outside the electric wire 4, and
There is no such thing as chewing. In a state where the cover 2 is locked, as shown in FIG. 3, the cover 2 covers the draw-out portion of each electric wire 4 to prevent dust and the like from entering therethrough, and each electric wire 4 is put together. From the outlet 7 of the cover 2.

Note that, due to the harness layout, the group of electric wires 4 coming out of the outlet 7 of the cover 2 is indicated by arrows A and B in FIG.
As shown in (1), there is a case where the wiring is bent immediately in a direction perpendicular to the extending direction and wired. In that case, the side wall 2 of the cover 2
The force acting to expand the portion of the cover 2 on the outlet 7 side acts, but the depressed wall surface 19 of the side wall 2a of the cover 2, particularly the depressed wall surface 19 on the outlet side enters the inside of the rib 16 on the female housing 1 side. , Because outward movement is regulated,
The side wall 2a is prevented from expanding, and the lock is prevented from being accidentally released.

As described above, according to the present embodiment, the electric wires 4 are collectively stored inside the inwardly protruding end of the protruding piece 17.
Since the side wall 2a of the cover 2 is fitted outside the inwardly protruding end of the protruding piece 17, when the cover 2 is covered, the electric wire 4
Never bite. Also, the side wall 2 a of the cover 2 is prevented from expanding due to the contact with the rib 16. In particular, since the rib 16 and the protruding piece 17 are integrally formed so as to form a T-shape, the rib 16 and the protruding piece 17 can be combined into a simple structure.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention.

(1) In the above-described embodiment, the case where the rib 16 (spreading prevention piece) and the projection piece 17 (biting prevention piece) are formed integrally has been exemplified, but this may be provided separately. . In short, it is only necessary that the anti-jaw piece be located inside the side wall of the cover and the anti-spreading piece be located outside of the side wall. The piece and the spread prevention piece may be set up at an interval.

(2) The present invention can also be applied to the case where the cover is provided integrally with the housing via a hinge or the like, and the biting prevention piece and the spread prevention piece are provided separately. In this case, the present invention can be applied to a case in which the cover is slid and attached from one end side in the length direction of the electric wire lead-out surface. (3) Further, the present invention can be similarly applied to a connector with a male electric wire cover.

[Brief description of the drawings]

FIG. 1 is a perspective view of a female housing and a cover according to an embodiment of the present invention.

FIG. 2 is a perspective view of a separated state of a female housing to which an electric wire is attached and a cover.

FIG. 3 is a perspective view showing a state where a cover is attached.

FIG. 4 is a sectional view of a state before the cover is attached.

FIG. 5 is a sectional view showing a state where a cover is attached.

FIG. 6 is an enlarged sectional view taken along line XX of FIG. 5;

FIG. 7 is a perspective view of a conventional example before a cover is attached.

FIG. 8 is a perspective view after the cover is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Female housing 2 ... Cover 2a ... Side wall (of cover 2) 4 ... Electric wire 5 ... Electric wire lead-out surface 16 ... Rib (spreading prevention piece) 17 ... Projection piece (biting prevention piece) 19 ... Depressed wall surface 20 ... Slit (relief) groove)

Claims (1)

(57) [Claims] 1. A connector housing, from which a plurality of wires are drawn out from a wire drawing surface, and a cover which is fitted to the connector housing in a state where the wires are drawn out sideways while covering the wire drawing surface. In the connector with an electric wire cover, on both side edges of the electric wire lead-out surface, an electric wire biting prevention piece located inside the side wall of the cover, and located outside the side wall of the cover to prevent the side wall from spreading. An expansion prevention piece is set up, and the biting prevention piece projects from the inner surface of the expansion prevention piece.
While being provided integrally on the side wall of the cover
A relief groove is formed to allow the biting prevention piece to be inserted.
The side wall of the cover is prevented from getting stuck in the escape groove
While inserting the piece, it is fitted inside the spread prevention piece and
The inwardly projecting end of the penetration prevention piece is inward of the side wall of the cover.
A connector with an electric wire cover, which is set to protrude .