JPH11233180A - Female side terminal metal fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a female side terminal metal fixture and a housing, not damaging the female side terminal metal fixture and preventing the entering of foreign matters into the inside. SOLUTION: A box type fitting part 6 is formed in the front of a female side terminal metal fixture 1. In the box type fitting part 6, a corner part 23 is formed in the boundary of a longitudinal wall surface part 11 and a ceiling surface part 13. In a bending work process of the female side terminal metal fixture 1, a slit and a cut out part are opened in the upper part of the longitudinal wall surface part 11. Since these opening parts are covered with cover parts 9, 10 projected to the side edge of the ceiling surface part 13, when the bending work of the box type fitting part 6 is finished, the opening parts are closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a female terminal fitting.

[0002]

2. Description of the Related Art FIG. 7 shows a female terminal fitting 50 disclosed in Japanese Utility Model Laid-Open No. 61-14472. The female terminal fitting 50 is formed by bending a conductive plate material, and a fitting portion 51 that can be fitted with a male terminal fitting (not shown) is provided at the front (lower left side in FIG. 7). Is provided. Inside the fitting portion 51, a contact piece 52 that can elastically contact the male terminal fitting is provided.

[0003] The contact piece 52 is formed on the vertical side surface 5 of the fitting portion 51.
5 is formed by bending one side edge. Prior to this bending, a folding margin must be provided in advance to prevent the contact piece 52 from contacting the vertical side surface 55.
For this reason, a slit 53 as a margin is formed at a side edge portion of the contact piece 52 and the vertical side surface 55. Thus,
The slit 53 was left open in the fitting part 51 of the female terminal fitting 50 as a finished product.

[0004]

However, if the slit 53 is left open as described above, the female terminal fitting 50 is caught when the female terminal fitting 50 is inserted into the connector housing (not shown). The metal fitting 50 and the connector housing may be damaged. There was also a concern that foreign matter would enter the inside of the fitting portion 51 from the slit 53.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a female terminal fitting capable of preventing foreign matters from entering the inside without damaging the female terminal fitting or the connector housing. Where you do it.

[0006]

According to a first aspect of the present invention, there is provided a female terminal fitting according to the first aspect of the present invention, wherein a conductive plate material is bent so that an edge of the plate material has a corner. A box-shaped fitting part having a rectangular cylindrical shape in a form as abutted with the male terminal fitting on the mating side can be inserted therein, and a connecting piece part is provided on one side edge of the plate material. The elastic contact piece is formed inside the ceiling surface of the box-shaped fitting part by forming a resilient contact piece that contacts the male terminal fitting by forming a slit leaving the The slit is located at the corner between the ceiling surface and the vertical wall adjacent to the ceiling, and the cover covering the slit extends from the ceiling surface of the box-shaped fitting portion. It is characterized by having been established.

According to a second aspect of the present invention, in the first aspect, the connecting piece is formed so as to recede from the front end of the box-shaped fitting portion so as to leave a cutout on the front end side. From
A front edge cover for covering the cutout is also formed.

[0008]

According to the first aspect of the present invention, a female terminal is formed by bending a plate material. At this time, an elastic contact piece that contacts the male terminal fitting is disposed inside the ceiling surface of the box-shaped fitting portion. Here, a slit is located at the corner between the ceiling surface and the vertical wall surface,
This slit is covered by a cover extending from the ceiling surface. As described above, the conventionally exposed slit is covered with the cover, so that the connector housing and the like are not damaged at the time of insertion. In addition, it is possible to prevent foreign substances from entering the female terminal fitting through the slit.

According to the second aspect of the present invention, a notch is formed at the tip end of the connecting piece, and the notch is covered by the front edge cover.

[0010]

Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a perspective view of the female terminal fitting 1 of the present embodiment. As shown in the figure, the rear end portion of the female terminal fitting 1 is a carrier 2
And a plurality of female terminal fittings 1 are integrally formed along the length direction of the carrier 2. The female terminal fitting 1 is formed by bending a conductive plate material, and can be connected to the mating male terminal fitting 3. Two types of barrels 4 and 5 for projecting an electric wire (not shown) are provided at a rear portion of the female terminal fitting 1. this house,
The rear end side is an insulation barrel 4 that covers the covering portion of the electric wire, and protrudes from the left and right ends at positions that are alternately front and rear. A wire barrel 5 is provided in front of the insulation barrel 4 to be connected to a core portion of the electric wire. At the front of the female terminal fitting 1, a rectangular tube-shaped box-shaped fitting portion 6 is formed.

FIG. 2 shows the state of the plate before the female terminal fitting 1 is bent. The part to be the box-shaped fitting part 6 has four surface parts 11, 13, 20, 21. These surface portions 11, 13, 20, 21 are, from top to bottom in FIG. 2, a ceiling surface portion 13 forming a ceiling portion, a vertical wall surface portion 20 serving as one side wall, a floor surface portion 21 forming a floor surface portion, and The other side wall is the vertical wall surface portion 11. In addition, a bending point 22 is provided between the respective surface portions 11, 13, 20, 21.

A tongue piece 8 is provided on one side edge of the vertical wall portion 11.
Is provided. The tongue piece 8 is bent to form the elastic contact piece 7 that elastically contacts the male terminal fitting 3. The tongue piece 8 is connected via a connecting piece part 14 projecting from a side edge part of the vertical wall part 11 at a position slightly rearward from the leading edge of the vertical wall part 11. For this reason, the position from the leading edge of the vertical wall portion 11 to the leading end of the tongue piece 8 is cut out to form a cutout portion 24. The tongue piece 8
The connecting piece 14 extends rearward from the tip of the connecting piece 14 at a predetermined distance (hereinafter, referred to as a slit 12) from the vertical wall surface 11. The slit 12 is required to secure a margin in the process of folding the tongue piece 8 inside the box-shaped fitting portion 6. Further, two cover lids 9 and 10 are protrudingly provided at the side end of the portion forming the ceiling surface 13 in front and rear. Among them, the small one located in the front is the front edge cover part 9, and the long one located in the rear is the rear cover part 10. Further, the gap 16 separating the two cover parts 9 and 10 is configured to just sandwich the connecting piece part 14. The front edge cover part 9 is a box-shaped fitting part 6.
Is formed, it is bent toward the vertical wall surface 11 and is located in the notch 24 on the front side of the connecting piece 14. On the other hand, the rear cover portion 10 is provided corresponding to the position of the slit 12, and is bent toward the vertical wall surface portion 11 when the box-shaped fitting portion 6 is formed by bending, and the gap between the slit 12 portion is provided. Cover.

Next, the state of the box-shaped fitting portion 6 when it is bent will be described with reference to FIGS. First, the process of forming the tongue piece 8 will be described. As shown in FIG. 4, an intermediate portion thereof is bent so as to protrude downward to form a contact portion 17 that comes into contact with the male terminal fitting 3. Further, the tip side 18 of the elastic contact piece 7 is slightly folded back,
The ceiling surface 13 can be smoothly contacted.
In this manner, the elastic contact piece 7 is formed as a double-supported type in which both front and rear ends contact the ceiling surface 13.

Next, the respective surface parts 11, 13, 20, 21 will be described. When the elastic contact piece 7 is bent, the connecting piece portion 14 that is the connecting portion between the vertical wall portion 11 and the tongue piece 8 is bent until the right angle, and each bending point 22 is bent inward. Can be Then, a rectangular tube-shaped box-shaped fitting portion 6 is formed by surrounding the upper, lower, left, and right by the four surface portions 11, 13, 20, and 21. Prior to this bending operation, the two cover parts 9, 10 protruding from the side edges of the ceiling surface part 13 are also bent at substantially right angles.

Now, when the box-shaped fitting portion 6 is formed, the corner portion 23 located at the boundary between the vertical wall surface portion 11 and the ceiling surface portion 13 is formed.
, The slit 12 is located. A cutout 24 is located at the tip of the corner 23. Here, when the ceiling surface portion 13 is bent toward the upper side of the vertical wall surface portion 11,
The two lids 9 and 10 formed at the tip of the ceiling surface 13 are
The corner 23 is covered. That is, the front edge cover 9 covers the notch 24, while the rear cover 10
Will be covered.

In this manner, when the box-shaped fitting portion 6 is completed, the notch 24 and the slit 12 are connected to both the cover portions 9 and 10.
To provide a female terminal fitting 1 whose opening is closed.

As described above, according to the present embodiment, since the slit 53, which was conventionally exposed, is covered,
When the female terminal fitting 1 is inserted into the connector housing (not shown), it is not damaged.

Further, since the slit 12 and the cutout portion 24 are closed, it is possible to prevent foreign substances from entering the female terminal fitting 1 therethrough.

The present invention is not limited to the above-described embodiment. For example, the following ones are also included in the technical scope of the present invention. The notch 24 may not be provided, and the leading edge of the tongue piece 8 and the leading edge of the vertical wall portion 11 may be aligned.

[Brief description of the drawings]

FIG. 1 is a perspective view of a female terminal fitting of the present embodiment.

FIG. 2 is a plan view of a plate material before bending a female terminal fitting.

FIG. 3 is a side view of the female terminal fitting.

FIG. 4 is a side sectional view of the female terminal fitting.

FIG. 5 is a front view of a female terminal fitting.

6 is a sectional view taken along line AA in FIG. 3;

FIG. 7 is a perspective view of a female terminal fitting in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Female terminal metal fitting 3 ... Male terminal metal fitting 6 ... Box-shaped fitting part 7 ... Elastic contact piece 9 ... Front edge cover lid part 10 ... Rear cover lid part (cover lid part) 11 ... Vertical wall part 12 ... Slit 13 ... Ceiling Surface part 14 ... Connecting piece part 23 ... Corner part 24 ... Notch part

Claims (2)

[Claims] 1. A box-shaped fitting portion having a rectangular cylindrical shape in which the edges of the plate material are abutted at corners by bending a conductive plate material, and a mating part is formed inside the box-shaped fitting portion. A female terminal fitting that allows the male terminal fitting on the side to enter, wherein a resilient contact piece that contacts the male terminal fitting by forming a slit leaving a connecting piece on one side edge of the plate material. The elastic contact piece is formed by bending the connecting piece part so that the elastic contact piece is arranged inside the ceiling surface part of the box-shaped fitting part, and the slit is formed in the ceiling surface part and the ceiling part. A female terminal fitting which is located at a corner with an adjacent vertical wall part, wherein a cover part for covering the slit is extended from a ceiling surface part of the box-shaped fitting part. 2. The connecting piece is formed so as to recede from the tip of the box-shaped fitting part and leave a notch on the tip side, and a front edge cover covering the notch from the ceiling surface. 2. The female terminal fitting according to claim 1, wherein the female terminal fitting is formed.