JP2002352902A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a general-purpose connector which is superior in assembling workability. SOLUTION: A pair of electric wire support members 50, 60 is removably loaded to a face 29 (rear face after this) where an electric wire 40 is drawn out from a cavity 22 of a housing body 21. These electric wire support members 50, 60 are capable of being selectively locked to a temporary locking position and the permanent locking position, and a through insertion of a terminal fitting 42 and of the electric wire 40 is made possible in the temporary locking position. Therefore, the electric wire support members 50, 60 are mounted on the housing body 21 beforehand and set in the temporary locking position, in whose state an insertion work of the terminal fitting 42 can be carried out. Then, if the electric wire support members 50, 60 are moved to the permanent locking position after the terminal fitting 42 is inserted, the electric wire 40 is bent by an opening brim part of an electric wire through insertion opening 56 and is retained in a falling-out preventing state.

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 retaining and holding an electric wire.

[0002]

2. Description of the Related Art In a situation where a connector is used, a pulling force sometimes acts on an electric wire drawn from a housing. In order to prevent this pulling force from directly reaching the engaging portion of the terminal fitting in the housing, there is a connector which can hold and hold the electric wire. For example, a connector disclosed in JP-A-7-6815 is known as this type of connector. As shown in FIG. 12, a plurality of electric wires 3 are drawn out from the rear end 4 of the connector housing 2 and the electric wire support 5 extends to the side edge of the rear end 4 to be integrally formed. And covers the lower part and the side of the electric wire 3 group.

The connector 1 is provided with a wire pressing clamp 6 which is a separate part from the connector housing 2, and the clamp 6 extends downward from both side edges of a board portion 7 formed to cover the wire supporting portion 5. A pair of extending mounting pieces 9 are provided, and a pair of electric wire pressing pieces 8 are formed immediately inside the mounting pieces 9 downward. In the above configuration, in a state where the wire pressing clamp 6 is attached to the wire supporting portion 5, the wire supporting wall 10 and the wire pressing clamp 6 that constitute the wire supporting portion 5 are provided.
The electric wire pressing pieces 8 can bend the electric wires 3 arranged at both ends to hold the electric wires 3 in a retaining state.

[0004]

However, in the above structure, since the wire supporting portion 5 is integrally extended with the connector housing 2, the volume of the connector 1 remains large even when the wire holding is not required. . For this reason, when considering the volumetric efficiency, the same connector housing cannot be shared between the case where the electric wire is required and the case where the electric wire is not required.

A wire pressing clamp 6, which is another component, is a separate component from the connector housing 2 and does not have a temporary fixing means. for that reason,
When assembling the connector 1, the connector housing 2
After the terminal fitting has been inserted into the wire support, it is necessary to attach the wire pressing clamp 6 to the wire support 5 again. These assembling tasks are cumbersome,
This increases the number of assembling steps and causes an increase in cost. The present invention has been completed based on the above circumstances, and has as its object to provide a versatile connector having excellent assembling workability.

[0006]

According to another aspect of the present invention, there is provided a connector according to a first aspect of the present invention, comprising a housing body having a cavity for accommodating a terminal fitting, and the terminal of the housing body. A pair of wire holding members detachably attached to a portion from which the wires connected to the metal fittings are led out, wherein each of the wire holding members includes a wire insertion opening through which the wires can be inserted, and the housing body includes On the other hand, the terminal fitting and the electric wire can be freely inserted through the electric wire insertion opening when each of the electric wire holding members is at the temporary fixing position. When the electric wire is at the full locking position, the electric wire is bent by the opening edge of the electric wire insertion opening so that the electric wire is held in a retaining state.

According to a second aspect of the present invention, in the first aspect, the pair of wire holding members have the same shape, and move in opposite directions with respect to the housing main body in a state where they are turned upside down. It is characterized by where it can be mounted.

[0008]

According to the first aspect of the present invention, the electric wire holding member can be selectively locked between the temporary locking position and the full locking position. At the stop position, terminal fittings and electric wires can be inserted. Therefore,
Before assembling the connector, the wire holding member is attached to the housing body in advance and set to the temporary locking position, and the terminal fitting can be inserted in this state. Then, if the wire holding member is moved to the final locking position after the terminal fitting is inserted, the wire is bent by the opening edge of the wire insertion opening of the wire holding member, and the wire is held in a retaining state. Therefore, the connector is excellent in assemblability without performing a troublesome operation of assembling the wire pressing clamp again after the terminal fitting is inserted.

Further, since the pair of wire holding members are detachably attached to the housing body,
When wire retention is not required, the terminal fittings may be inserted without attaching both wire retaining members to the housing body, thereby minimizing the volume of the connector, eliminating waste, and sharing the housing body. be able to.

<Invention of Claim 2> According to the invention of Claim 2, the pair of electric wire holding members are mounted on the housing main body so as to be movable in opposite directions to each other in a state where they are turned upside down. Can be constituted by the same parts, and the number of types of parts can be reduced.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. <First Embodiment> A first embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 21 denotes a female housing main body, in which two upper and lower cavities 22 are formed penetrating along the front-rear direction of the housing main body 21. The terminal fitting 42 in which the exposed core wire 41 is crimped and fixed can be accommodated.
In addition, a concave portion 24 </ b> A communicating with each cavity 22 is provided on the side surface 24 of the housing main body 21, and a retainer 43 is mounted here. Although not described in detail, retainer 4
3 can be locked in two stages: a temporary locking position and a full locking position. In the temporary locking position, the locking portions 43A and 43B provided on the retainer 43 enter the inside of the cavity 22. Instead, the work of inserting the terminal fitting 42 into the cavity 22 is enabled. A cantilevered lance 23 is formed at a position near the front end in each cavity 22 so as to be flexible, and a terminal fitting 42 accommodated in the cavity 22 is provided.
Is elastically locked to prevent slippage.

When the retainer 43 is moved to the full locking position, each locking portion 43 of the retainer 43 is moved.
While the terminals A and 43B enter the cavity 22, the terminal fittings 42 are locked to prevent the terminal fittings 42 from coming off. The recess 24
A cantilevered lock arm 26 is provided on a side surface 25 opposite to the side surface 24 provided with A, so that it can bend. When the lock arm 26 is properly fitted with a male connector housing (not shown), The male connector housings can be locked to hold both connector housings in a mated state.

The cavity 22 of the housing body 21
A pair of electric wire holding members 50 and 60 are mounted on a surface 29 (rear surface) from which the electric wires 40 are led out, and these will be described below. First, as shown in FIGS. 8 to 11, the electric wire holding member 50 is attached to the rear surface 29 of the housing body 21.
A side wall 52 is provided over the entire periphery of the side edge of the substrate portion 51 formed to have a size to cover the front side, and has a U-shaped cross section as a whole and is opened forward. The board portion 51 is provided with a wide electric wire insertion opening 56 formed in two upper and lower stages, and the electric wire insertion opening 56 of each stage is formed in a size that is continuous with all the cavities 22 of each stage. I have.

As shown in FIG. 9 and FIG. 10, the front ends of the left and right side walls 52A of the side wall 52 extend forward to form a mounting portion 53. The inner width (dimension E shown in FIG. 9) of the mounting portion 53 is substantially equal to the outer width (dimension G shown in FIG. 5) of the left and right side surfaces 30 and 31 of the housing body 21, and the wire holding member 50 is fitted. It can be combined. While three locking holes 54 (the numbers of the locking holes 54 are 54a, 54b and 54c from the bottom) are arranged at equal intervals in the mounting portion 53, the leading edge of the mounting portion 53 is provided. An L-shaped slit 58 is provided, which is open at the opening. This allows the mounting portion 53 to bend in the width direction of the housing body 21.

As shown in FIG. 7, a projection 32 having an inclined lower surface is provided on the left and right side surfaces 30, 31 of the housing body 21. Therefore, the wire holding member 5
When 0 is pressed upward from below, the mounting portion 53 bends so as to expand along the inclined surface of the projection 32, and the projection 32 fits into the locking hole 54 at a predetermined position. Has become.

As shown in FIG. 9, the left and right side walls 52A are formed in a stepped shape inwardly of the mounting portion 53 by the thickness of the mounting portion 53, as shown in FIG.
The outer width between 2A (dimension F in FIG. 9) and the inner width between mounting portions 53 (dimension E in FIG. 9) are substantially equal. In addition, on the outer surfaces of the left and right side walls 52A of the electric wire holding member 50, the projections 5 having a shape that is upside down with the projections 32 of the housing body 21 described above.
7 are provided. On the other hand, the wire holding member 60 has the same shape as the above-described wire holding member 50, and is used upside down. Therefore, the same portions as those of the electric wire holding portion 50 are denoted by the same reference numerals, and duplicate description will be omitted.

Next, the operation and effect of this embodiment configured as described above will be specifically described. When it is necessary to hold the electric wire 40 led out from the housing body 21, the assembling is performed as follows. First, a pair of electric wire holding members 50 and 60 are attached to the rear surface 29 of the housing body 21 in the upper and lower directions in advance and set to the temporary locking position.

This includes both sides 3 of the housing body 21.
The wire holding member 50 is pushed upward from below while fitting the mounting portion 53 of the wire holding portion 50 to 0 and 31, and as shown in FIG. The engaging hole 54c of the electric wire holding member 50 is fitted. Then, the wire holding member 60 is pushed downward from above while fitting the mounting portion 53 of the wire holding member 60 to both side walls 52A of the wire holding member 50, and the protrusion 57 of the wire holding portion 50 Wire holding member 6
No engagement hole 54c is fitted. In this temporary locking position, as shown in FIG. 1, each wire insertion opening 56 is at a position corresponding to the cavity 22 of each step of the housing 21 main body. Therefore, the space behind the cavity 22 is opened,
The terminal fitting 42 can be inserted.

Then, the retainer 43 is pushed into the concave portion 24A provided in the housing main body 21.
Set to the temporary locking position. In this temporary locking position, the retainer 43 does not hinder the operation of inserting the terminal fitting 42 into the cavity 22 at all. Therefore, the terminal fitting 42 is inserted, and the terminal fitting 42 is engaged with the lance 23 provided in the cavity 22. (See FIG. 1). Then, after all the terminal fittings 42 have been inserted,
The retainer 43 at the temporary locking position is further pushed in to move to the final locking position. As a result, the locking portions 43A and 43B of the retainer 43 lock the terminal fitting 42 to prevent the retainer 43 from falling off.

Next, the electric wire holding members 50 and 60 are moved from the temporary locking position to the final locking position. To do this, first, the wire holding member 50 at the temporarily locked position is pushed upward from below, and as shown in FIG.
Of the wire 32 and the locking hole 54b of the wire holding member 50 are fitted. Then, the wire holding member 60 is pushed downward from above to fit the projection 57 of the wire holding member 50 with the locking hole 54a of the wire holding member 60. In this full locking position, the electric wire insertion openings 56 are shifted upward and downward, so that the electric wire 40 is bent in an inverted U-shape by the opening edges of the electric wire insertion openings 56 to come out. It is held in the stopped state (see FIG. 2).

On the other hand, when it is not necessary to hold the electric wire 40, the terminal fitting 42 may be inserted without attaching the electric wire holding members 50 and 60 to the housing main body 21, thereby the connector has a minimum volume. There is no waste, and the housing body 21 can be shared.

As described above, according to the present embodiment, the electric wire 40
If it is necessary to attach the wire holding members 50 and 60 to the housing main body 21 in a separate process and set the wire holding members 50 and 60 in the temporary locking position in advance before assembling the connector, The terminal fitting 42 can be inserted. Therefore, in the step of inserting the terminal fitting 42, the insertion operation can be performed intensively, and the workability is excellent.

When the wire holding members 50 and 60 are moved to the final locking position after the terminal fitting 42 is inserted, the wires 40 are bent by the opening edges of the wire insertion openings 56 of the wire holding members 50 and 60. As a result, the electric wire 40 is held in a retaining state. Further, a pair of electric wire holding members 50, 60
Are mounted on the housing body 21 so as to be movable in opposite directions to each other in a state where they are turned upside down, so that the pair of electric wire holding members 50 and 60 can be constituted by the same components, and the number of component types is reduced can do.

In this embodiment, the housing main body 21 is provided with two cavities 22 in the upper and lower stages, and an electric wire 40 is mounted in each cavity 22. In order to hold the electric wires 40, for example, the size of the electric wire insertion opening 56 may be set to be continuous with the upper and lower cavities 22 so that the upper and lower electric wires 40 can be held together. But,
In such a case, since the upper and lower two electric wires 40 are held between the opening edges of the respective electric wire insertion openings 56 in a state of being vertically stacked, the electric wires 40 cannot be sufficiently held depending on the positional relationship of the respective electric wires 40. In some cases, it is not possible. However, in the present embodiment, the electric wire insertion opening 56 through which the electric wire 40 is inserted also has two upper and lower stages corresponding to the cavities 22, and the electric wire 40 is inserted at each stage. Accordingly, since the electric wires 40 are accommodated between the opening edges of the electric wire insertion openings 56 for each stage, the electric wires 40 can be reliably held.

In this embodiment, the electric wire holding member 5
The wire insertion openings 56 provided in the housings 0 and 60 are provided with all the cavities 22 of each stage pulled out from the housing body 21.
, And the width is set to be wide. Therefore, the width of the wire insertion opening 56 must be
If it is set to the size of a flat cable or the like, it can be used for a connector to which a flat cable is attached.

<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 this embodiment, the two wire holding members are moved in two alternate directions, but one of the wire holding members is immovably mounted on the housing body, and The electric wire may be held in an L-shape by movably mounting the other electric wire holding member and moving it in one direction.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a wire holding member is in a temporary locking position according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where an electric wire holding member is in a final locking position.

FIG. 3 is an exploded side view showing the wire holding member in a temporary locking position and a full locking position.

FIG. 4 is a side view showing a state after terminal fittings are mounted.

FIG. 5 is a plan view thereof.

FIG. 6 is a rear view thereof.

FIG. 7 is a rear view of the housing body.

FIG. 8 is a front view of the electric wire holding member.

FIG. 9 is a plan view thereof.

FIG. 10 is a side view thereof.

11 is a sectional view taken along line DD in FIG.

FIG. 12 is a perspective view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 ... Housing main body 22 ... Cavity 29 ... Rear surface 32 ... Protrusion 42 ... Terminal fitting 40 ... Wire 50 ... Wire holding member 51 ... Board part 53 ... Mounting part 54 ... Locking hole 56 ... Wire insertion opening 60 ... Wire holding member

Claims (2)

[Claims] 1. A housing body having a cavity for accommodating a terminal fitting, and a pair of wire holding members detachably attached to a portion of the housing body from which a wire connected to the terminal fitting is led out. Each of the electric wire holding members includes an electric wire insertion opening through which the electric wire can be inserted, and is movable between a temporary locking position and a full locking position with respect to the housing body. When the terminal is in the temporary locking position, the terminal fitting and the wire are freely inserted through the wire insertion opening, and when in the main locking position, the wire is bent by the opening edge of the wire insertion opening, and the wire is A connector characterized in that it is held in a retaining state. 2. The electric wire holding member according to claim 1, wherein the pair of electric wire holding members have the same shape, and are mounted on the housing main body so as to be movable in opposite directions to each other in a state of being turned upside down. The connector described.