JP5999510B2 - Female terminal fitting and manufacturing method thereof - Google Patents

Description

  The present invention relates to a female terminal fitting.

  The female terminal fitting disclosed in Patent Document 1 includes a rectangular tube-shaped main body, a contact piece that is arranged in the main body so as to be able to bend, and extends rearward from a front end connected to the bottom wall of the main body. And a support portion extending forward from a rear end portion connected to the bottom wall. The contact piece can be brought into electrical contact with the mating male terminal, and the support portion is arranged to support the contact piece from below. Further, a concave spherical surface is provided on the lower surface of the contact piece, and a convex spherical surface is provided on the upper surface of the support portion, so that the contact piece and the support portion come into contact with each other via the concave spherical surface and the convex spherical surface. ing.

Japanese Patent No. 3473899

  In the above case, since the convex spherical surface of the support portion is fitted inside the concave spherical surface of the contact piece, there is a situation that the degree of difficulty in molding is high and it is difficult to process. In addition, when the concave spherical surface and the concave / convex fitting by the convex spherical surface are released due to external factors such as vibration, there is a problem that the contact reliability is impaired.

  On the other hand, this type of female terminal fitting is inserted into the cavity of the connector housing and is locked in a retaining state by a lance formed on the inner wall of the cavity so that it can be bent. If it is necessary to secure a space allowing the lance to enter, the rear end position of the support portion shifts upward (contact piece side) by the amount of the space formed, so that the support portion against the contact piece that is bent and deformed. There is a concern that the rear end portion of the rear end may come into contact in an unstable state. As a result, the contact load on the mating male terminal is not stable, and the contact reliability may be impaired.

  The present invention has been completed based on the above circumstances, and it is necessary to secure a space for the lance to enter. Therefore, even when the degree of freedom of molding is restricted, it can be easily molded. An object of the present invention is to provide a female terminal fitting that is capable of improving the contact reliability.

The present invention is a female terminal fitting inserted into a cavity of a connector housing and locked in a state of being prevented from being pulled out by a lance formed to be able to bend on the inner wall of the cavity, and a male tab on the other side is inserted from the front. A cylindrical main body portion that is capable of being bent in the height direction in the main body portion, extending backward from a first bending fulcrum portion connected to the main body portion, and inserted into the main body portion; A first spring portion that is in electrical contact with the tab; and a first spring portion that is disposed in the main body portion so as to be deflectable in a height direction and extends forward from a second bending fulcrum portion continuous with the main body portion. And a second spring part having a support part that supports the first spring part so as to oppose each other in the bending direction, and the main body part has a space for the lance to enter at the time of normal insertion into the cavity. Regarding the height direction as much as possible A retraction wall that is shifted and arranged on the insertion space side of the male tab is provided, and the second bending fulcrum portion of the second spring portion is disposed at a height position corresponding to the retraction wall, and the second spring The part is characterized in that a second relief part is formed between the rear part of the second spring part and the support part. The second relief part is recessed in a direction to escape from the first spring part.

  In the case of the present invention, in order to secure a space for the lance to enter, the main body portion is provided with a retracting wall that shifts to the support portion side in the height direction, and the second bending fulcrum portion of the second spring portion corresponds to the retracting wall. Since the height position of the second bending fulcrum portion approaches the support portion side, the second spring portion easily contacts the first spring portion at a portion other than the support portion. Therefore, there is a situation that the support state of the support portion with respect to the first spring portion is difficult to stabilize. However, according to the present invention, the second escape portion is formed behind the support portion of the second spring portion so as to escape from the first spring portion so as not to come into contact with the first spring portion to be deformed. The first spring portion is prevented from coming into contact with any portion other than the support portion, and the support state of the support portion is stably maintained. As a result, the contact load of the first spring portion with respect to the male tab on the other side is also stable, and the contact reliability can be improved. In addition, the second spring part only needs to have a shape that escapes from the first spring part and does not need to be processed into a special shape.

In Example 1 of this invention, it is an expanded sectional view which shows the state in which the female terminal metal fitting was inserted in the cavity of the connector housing, and was latched by the lance. It is an expanded sectional view which shows the state in which the female terminal metal fitting was normally connected with the other male tab. It is an expanded sectional view showing the state where the 1st spring part contacted the excessive deflection control piece, and excessive deflection was controlled. It is sectional drawing of a female terminal metal fitting. It is a front view of a female terminal metal fitting. It is a rear view of a female terminal metal fitting. It is an expanded view of a female terminal metal fitting. It is an expansion perspective view of the 2nd spring part. It is an enlarged plan view of a 2nd spring part. It is an expansion perspective view of the 2nd spring part in the female terminal metal fitting of the reference example 1 . It is an expansion perspective view of the 2nd spring part in the female terminal metal fitting of the reference example 2 . 6 is an enlarged cross-sectional view of a second spring part in the female terminal fitting of Example 2. FIG.

Preferred embodiments of the present invention are shown below.
The first spring portion is provided with a first escape portion that is shaped to escape from the second spring portion when the first spring portion is bent and deformed. Since the first flank and the second flank are in a relationship of escaping each other, the flank amount of the second flank can be relatively reduced, and the shape of the second flank can be simplified.

  The first spring portion is provided with a projecting contact portion that is in electrical contact with the male tab, and the first relief portion is provided within a projecting height of the contact portion. Thereby, when a contact part contacts with the other party's male tab, it is avoided that a male tab contacts a 1st escape part, and contact reliability can be maintained favorable.

  In the main body portion, an over-deflection restricting portion that restricts over-deflection of the first spring portion by abutting against the first spring portion to be deformed is provided, and at least the first spring portion is restricted to the over-deflection. The second escape portion is configured to escape so as not to come into contact with the first spring portion when in contact with the portion. Accordingly, the second relief portion does not contact the first spring portion in the entire range in which the first spring portion is bent and deformed, and the contact reliability can be maintained well.

The second relief portion, is plastically deformed front end portion of the second spring portion is formed by Rukoto reducing the plate thickness of the front end. As the plate thickness of the front end portion of the second spring portion is reduced by plastically deforming the front end portion of the second spring portion, the second spring portion extends forward, so that the second portion is expected to be expanded. The front-rear length of the spring portion can be adjusted to a predetermined length. As a result, the material can be saved and the cost can be kept low. Further, when the second relief portion is formed by press working, it is easy to manufacture and excellent in processing accuracy.

<Example 1>
A first embodiment of the present invention will be described with reference to FIGS. The female terminal fitting 10 of Example 1 is formed by bending a metal plate having a developed shape shown in FIG. 7, and has a shape elongated in the front-rear direction. As shown in FIG. 1, the female terminal fitting 10 is accommodated in the connector housing 60.

  The connector housing 60 is made of a synthetic resin, and has a cavity 61 extending in the front-rear direction, as shown in FIG. A lance 62 is provided on the inner wall of the cavity 61 so as to protrude forward. The female terminal fitting 10 is inserted into the cavity 61 of the connector housing 60 from the rear, and is elastically locked by the lance 62 in a state of being prevented from coming off during normal insertion. As shown in FIG. 2, a tab insertion opening 63 into which the mating male tab 90 is inserted from the front is provided in the front wall of the cavity 61.

  As shown in FIG. 4, the female terminal fitting 10 includes a rectangular tube-shaped main body 11, strip-shaped first and second spring portions 12 and 13 disposed in the main body 11, and the main body 11. The open barrel-shaped wire barrel 14 is connected to the rear of the wire barrel 14, and the insulation barrel 15 is connected to the rear of the wire barrel 14. The wire barrel 14 is connected by crimping to a core wire exposed by removal of the coating at the end portion of the wire (not shown), and the insulation barrel 15 is crimped to a rubber plug (not shown) externally fitted to the coating or coating at the end portion of the wire. Connected by.

  As shown in FIG. 5, the main body 11 includes a base wall 16 that is continuous from the wire barrel 14 side and disposed along the width direction, a pair of side walls 17 that rise from both ends in the width direction of the base wall 16, and both sides. The wall 17 has a bridge wall 18 extending from the upper end of one side wall 17 toward the other side wall 17. The first spring portion 12 and the second spring portion 13 are connected to the upper end of the other side wall 17 and bent.

  As shown in FIG. 2, a mating male tab 90 is inserted into the main body 11 from the front. The base wall 16 is provided with a receiving portion 19 that receives the lower surface of the male tab 90 inserted into the main body portion 11. The receiving portion 19 has a trapezoidal shape extending in the front-rear direction, and is formed by knocking the base wall 16 upward. A stabilizer 21 is provided at the rear end of the base wall 16 so as to be bent downward. When the female terminal fitting 10 is inserted into the cavity 61, the stabilizer 21 enters the guide groove 64 formed along the cavity 61 and guides the insertion operation of the female terminal fitting 10. 10 plays a role of restricting insertion of 10 into the cavity 61 in a posture opposite to the normal direction.

  As shown in FIG. 5, the bridge wall 18 includes a ceiling wall 22 disposed so as to overlap the first spring portion 12 and the second spring portion 13 from above, and the other side wall 17 from the other side in the width direction of the ceiling wall 22. And a connecting wall 23 that is bent downward. As shown in FIG. 4, the connecting wall 23 is fitted into a concave portion 24 provided at the upper end of the other side wall 17, thereby preventing the main body 11 from being opened and deformed.

  As shown in FIG. 4, the rear portion of the ceiling wall 22 is arranged at a position that is one step lower than the front portion side, and shifts to the insertion space 33 side described later of the male tab 90 in the main body portion 11 with respect to the height direction. The retreat wall 25 is configured. A step 26 in the height direction is provided between the front side of the ceiling wall 22 and the retreat wall 25, and an entry space 27 for the lance 62 is opened behind the step 26 and above the retreat wall 25. Is formed. As shown in FIG. 1, when the female terminal fitting 10 is properly inserted into the cavity 61 of the connector housing 60, the lance 62 enters the entry space 27 and is disposed so as to be locked to the step 26. The metal fitting 10 is prevented from coming off in the cavity 61. The step 26 has a tapered shape that recedes upward. In addition, the rear portions of the side walls 17 have a lower height than the front side so as to correspond to the height position of the retreat wall 25.

  As shown in FIG. 4, the first spring portion 12 is connected to the front side of the other side wall 17, and is bent at a substantially right angle from the upper end of the front side in the width direction; The first extending portion 29 is folded back and extended backward from the front end of the first bending fulcrum portion 28, and can be bent and deformed in the height direction with the front end of the first bending fulcrum portion 28 as a fulcrum.

  At the rear end portion of the first deflection fulcrum portion 28, an excessive deflection regulating portion 31 is provided by bending downward. As shown in FIG. 6, the excessive deflection restricting portion 31 is disposed at a position eccentric to one side with respect to the center in the width direction of the main body portion 11, and is visible from the rear through the entry space 27. As shown in FIG. 4, the first extending portion 29 is configured to be inclined downward so as to gradually approach the base wall 16 toward the rear, and the contact portion 32 is provided at the rear end portion closest to the base wall 16. Protrusively provided. The contact portion 32 is disposed at a position overlapping the excessive deflection restricting portion 31 in the front-rear direction. An insertion space 33 of the male tab 90 is formed between the contact portion 32 and the receiving portion 19 of the base wall 16, and the height dimension of the insertion space 33 is the state before the male tab 90 is inserted. The thickness of the male tab 90 is slightly smaller.

  Further, as shown in FIG. 4, the first extension portion 29 faces downward so as to gradually approach the base wall 16 from the rear end of the contact portion 32 toward the rear in a state before the male tab 90 is inserted. A first relief portion 34 that is inclined in the direction is provided. The first relief portion 34 is disposed within the range of the protruding height of the contact portion 32 so as not to contact the male tab 90 inserted into the main body portion 11.

  As shown in FIG. 4, the second spring portion 13 is connected to the rear side of the other side wall 17, and is bent at a substantially right angle from the upper end on the rear side in the width direction, A second extending portion 36 extending forward from the front end of the bending fulcrum portion 35 is provided, and can be bent and deformed in the height direction with a fulcrum body 38 described later of the second bending fulcrum portion 35 as a fulcrum.

  As shown in FIG. 4, the second bending fulcrum portion 35 is disposed at a height position corresponding to the retracting wall 25 along the lower surface of the retracting wall 25. Specifically, the second bending fulcrum portion 35 is in close contact with the lower surface on the rear side of the retreating wall 25, and is in front of the close-contacting portion 37 and is in contact with the retreating wall 25 in a substantially line contact state. A fulcrum body 38, and a spacing part 39 that is located on both front and rear sides of the fulcrum body 38 and is bent gently downward downward to be away from the retreat wall 25 with a space between the retreat wall 25 ing. The fulcrum body 38 is provided with a fulcrum position with respect to the retreating wall 25 through the front and rear separation portions 39.

  As shown in FIG. 4, the second extending portion 36 gradually moves away from the base wall 16 toward the front from the front-side separating portion 39 in the second bending fulcrum portion 35 before the male tab 90 is inserted. Thus, it consists of a second relief portion 41 that is inclined slightly upward and a support portion 42 that projects downward from the front end of the second relief portion 41.

  As shown in FIGS. 4 and 8, the support part 42 faces downward at the front end portion of the second extension part 36 so that the second extension part 36 faces the base wall 16 over the entire width (upward in FIG. 8). It is set as the form which curves in the side view substantially circular arc shape so that it may protrude. As shown in FIG. 4, the top of the curved portion of the support portion 42 comes into contact with the first relief portion 34 of the first spring portion 12 in a substantially line contact state in the width direction. In this case, the first spring portion 12 is reinforced by being elastically supported by the second spring portion 13.

  As shown in FIGS. 4 and 8, the second escape portion 41 is disposed immediately behind the support portion 42, and the lower surface of the portion located between the rear side of the second extension portion 36 and the support portion 42 ( In FIG. 8, the upper surface is recessed in a substantially trapezoidal shape when viewed from the side so as to approach the ceiling wall 22 side over the entire width. On the other hand, the portion of the upper surface side of the second extending portion 36 that faces the second escape portion 41 in a back-to-back relationship is substantially flush with the rear upper surface of the second extending portion 36 without any step. ing. That is, the second relief portion 41 is provided within the plate thickness range of the second extension portion 36. In addition, the second relief portion 41 is spaced apart from the first relief portion 34 of the first spring portion 12 in the height direction so as not to contact the first relief portion 34 in the entire range in which the first spring portion 12 is bent and deformed. Are arranged. In short, the second escape portion 41 has a shape that escapes from the first escape portion 34 in the height direction, and similarly, the first escape portion 34 has a shape that escapes from the second escape portion 41 in the height direction. ing. As shown in FIG. 9, the front end portion of the second escape portion 41 and the support portion 42 are wider than the rear side of the second escape portion 41, and one side of the second escape portion 41. The edge is provided with an arcuate portion 49 that is gradually widened toward the front.

  By the way, in the case of Example 1, the 2nd escape part 41 is plastically deformed with the support part 42 with a press, and, thereby, the plate | board thickness of the front-end part of the 2nd extension part 36 is smaller than the plate | board thickness of a rear part side. Has been. In addition, the plate thickness of each of the second escape portion 41 and the support portion 42 is reduced by the press, so that the second extension portion 36 extends forward. The front-rear length of the protruding portion 36 is adjusted to a predetermined length.

Next, the effect of the female terminal fitting 10 of Example 1 is demonstrated.
The female terminal fitting 10 is inserted into the cavity 61 of the connector housing 60 from behind. As shown in FIG. 1, when the female terminal fitting 10 reaches the normal insertion position, the lance 62 is elastically fitted into the entry space 27 of the main body 11 of the female terminal fitting 10, so that the female terminal fitting 10 is in the cavity 61. Is held in a state of being prevented from coming off.

  Subsequently, the connector housing 60 is fitted into the mating connector housing. Then, the male tab 90 attached to the mating connector housing is inserted into the insertion space 33 of the main body 11 of the female terminal fitting 10 through the tab insertion port 63 of the connector housing 60. As shown in FIG. 2, when the male tab 90 inserted into the insertion space 33 of the main body portion 11 comes into contact with the contact portion 32 of the first spring portion 12, the first spring portion 12 is pressed by the male tab 90. While being bent and deformed upward with the first bending fulcrum portion 28 as a fulcrum, the second spring portion 13 is pressed by the first spring portion 12 and bent upward with the second bending fulcrum portion 35 as a fulcrum. In the process in which the first spring portion 12 and the second spring portion 13 are bent and deformed, the first relief portion 34 of the first spring portion 12 abuts on the support portion 42 of the second spring portion 13, while the second spring portion 13 is not in contact with any part other than the support part 42 (including the second escape part 41), the support stability of the second spring part 13 with respect to the first spring part 12 is ensured, and at the same time, Support stability of one spring part 12 is also secured.

  As shown in FIG. 2, when the male tab 90 is properly inserted into the cavity 61 of the connector housing 60, the inclination angle of the first extending portion 29 (except for the contact portion 32) of the first spring portion 12 becomes loose. The second escape portion 41 of the second spring portion 13 is disposed to be inclined upward toward the front. Even in this case, a gap in the height direction is opened between the first relief portion 34 of the first spring portion 12 and the second relief portion 41 of the second spring portion 13. The escape portions 41 do not contact each other.

  Furthermore, as shown in FIG. 3, the male tab 90 strongly presses the first spring portion 12 upward, for example, by inserting the male tab 90 into the main body portion 11 in a posture inclined from the normal posture. When the spring portion 12 is to be bent and deformed beyond the normal bending range, the first extension portion 29 of the first spring portion 12 comes into contact with the excessive bending restricting portion 31, and beyond that of the first spring portion 12. The bending operation is restricted. Therefore, excessive bending and deformation of the first spring portion 12 is avoided. Further, even when the first spring portion 12 is in contact with the excessive deflection restricting portion 31, the state where the first escape portion 34 and the second escape portion 41 do not contact each other is maintained. It should be noted that the lower edge of the front end portion of the retracting wall 25 avoids contact with the second extension portion 36 of the second spring portion 13 in a state where the first spring portion 12 is in contact with the excessive deflection restricting portion 31. A cutout portion 44 is provided in the recess.

  As described above, according to the first embodiment, the second bending fulcrum portion 35 of the second spring portion 13 due to the entry space 27 of the lance 62 formed in the main body portion 11 of the female terminal fitting 10. However, the second relief portion 41 of the second spring portion 13 is the first spring portion 12 of the first spring portion 12. Since the second spring portion 13 does not come into contact with the first spring portion 12 at a portion other than the support portion 42 by forming a shape that escapes from the escape portion 34, the support portion 42 is supported by the first spring portion 12. The state is maintained stably. As a result, the contact load of the first spring portion 12 with respect to the male tab 90 on the counterpart side is stabilized, and the contact reliability can be improved. In addition, the second spring portion 13 only needs to have a shape that escapes from the first spring portion 12 and does not need to be processed into a special shape.

In addition, since the first escape portion 34 of the first spring portion 12 also has a shape that escapes from the second spring portion 13 when the first spring portion 12 is bent and deformed, it is not necessary to cover the escape amount only with the second escape portion 41. The shape of the second escape portion 41 can be simplified.
Furthermore, since the first relief portion 34 is provided within the range of the protruding height of the contact portion 32, when the contact portion 32 comes into contact with the mating male tab 90, the male tab 90 is in contact with the first relief portion 34. Contact is avoided, and contact reliability can be maintained well.

  Further, even when the first spring portion 12 is in contact with the excessive deflection restricting portion 31, the second spring portion 41 has a shape to escape so as not to contact the first spring portion 12. The second escape portion 41 does not come into contact with the first spring portion 12 in the entire range in which the bending deformation occurs, and the contact reliability can be maintained better.

  Furthermore, when the second relief portion 41 and the support portion 42 are molded, the front end portion of the second spring portion 13 is plastically deformed, thereby reducing the plate thickness of the front end portion of the second spring portion 13. Since the second spring portion 13 extends forward, the length of the second spring portion 13 can be adjusted to a predetermined length in anticipation of the extension, and as a result, material can be saved. Cost can be kept low. Moreover, since the 2nd escape part 41 is shape | molded by press work, it is easy to manufacture and can improve a processing precision.

< Reference Example 1 >
FIG. 10 shows the second spring portion 13 of Reference Example 1 . In the case of the reference example 1 , the support portion 42A of the second spring portion 13A is formed by knocking the front end portion of the second extension portion 36A downward (in the illustrated case, upward), and is curved in a substantially arc shape when viewed from the front. It is supposed to be a form to do. The top portion of the support portion 42A faces the front end of the second extension portion 36A and comes into contact with the first relief portion 34 of the first spring portion 12 in a substantially point contact state.
The second relief portion 41A is disposed above (lower in the case of the illustration) by the protrusion of the support portion 42A, and contacts the first relief portion 34 in the entire range in which the first spring portion 12 is bent and deformed. In order to avoid this, the first spring portion 12 is configured to escape away from the first escape portion 34 in the height direction. Others are the same as in the first embodiment.
< Reference Example 2 >
FIG. 11 shows the second spring 13B of Reference Example 2 . In the case of the reference example 2 , the support portion 42B has a substantially hemispherical shape that bulges from the second escape portion 41B to the base wall 16 side (the upper side in the drawing) at the front end portion of the second extension portion 36B of the second spring portion 13B. Embossed) and does not reach the front end of the second extension 36B. In this case, the support portion 42B is formed by hitting the upper surface (the lower surface in the drawing) of the second extending portion 36B, as in the first reference example . Others are the same as in the first embodiment.

< Example 2 >
FIG. 12 shows the second spring 13C of the second embodiment of the present invention. In the case of the second embodiment , the support portion 42C is arranged such that the second extension portion 36C approaches the base wall 16 side (the upper side in the drawing) over the entire width at the front end portion of the second extension portion 36C of the second spring portion 13C. It is made into the form which curves to the side view substantially circular arc shape. Further, in the second escape portion 41C of the second embodiment , the portion located between the rear side of the second extension portion 36C and the support portion 42C approaches the ceiling wall 22 side (lower side in the drawing) over the entire width. It is made into the form bent to a substantially trapezoid shape in side view. According to the second embodiment , since the second escape portion 41C has a shape that largely escapes from the first escape portion 34 of the first spring portion 12, the first spring portion 12 is other than the support portion 42C of the second spring portion 13C. The situation of contact at the part is more reliably avoided. Others are the same as in the first embodiment.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following aspects are also included in the technical scope of the present invention.
(1) The second bending fulcrum part of the second spring part may be provided integrally and continuously with the retracting wall.
(2) The first spring portion and the second spring portion may be configured so as not to contact each other in a state before the male tab is inserted into the main body portion.

DESCRIPTION OF SYMBOLS 10 ... Female terminal metal fitting 11 ... Main-body part 12 ... 1st spring part 13, 13A, 13B, 13C ... 2nd spring part 25 ... Retraction wall 27 ... Entrance space 28 ... 1st bending fulcrum part 31 ... Excessive bending control part 32 ... Contact part 33 ... Insertion space 34 ... First relief part 35 ... Second deflection fulcrum part 41, 41A, 41B, 41C ... Second relief part 42, 42A, 42B, 42C ... Support part 60 ... Connector housing 61 ... Cavity 62 ... Lance 90 ... male tab

Claims (5)

A female terminal fitting inserted into a cavity of a connector housing and locked in a retaining state by a lance formed to be deflectable on an inner wall of the cavity,
A cylindrical body part into which the male tab on the other side can be inserted from the front,
The first main body is disposed in the main body so as to be able to bend in the height direction, extends rearward from a first bending fulcrum connected to the main body, and is in electrical contact with the male tab inserted into the main body. A spring part,
The first spring part is disposed in the main body part so as to be able to bend in the height direction, extends forward from a second bending fulcrum part connected to the main body part, and faces the first spring part in the bending direction. A second spring portion having a support portion for supporting
The main body portion is provided with a retreating wall that is arranged to be shifted to the insertion space side of the male tab with respect to the height direction so as to secure a space for the lance to enter during normal insertion into the cavity. The second bending fulcrum part of the two spring parts is disposed at a height position corresponding to the retracting wall,
The second spring part is provided with a second relief part that is recessed in a direction to escape from the first spring part between the rear part of the second spring part and the support part. Female terminal fitting.   2. The female terminal fitting according to claim 1, wherein the first spring portion is provided with a first relief portion configured to escape from the second spring portion when the first spring portion is bent and deformed.   The first spring portion is provided with a protruding contact portion that is in electrical contact with the male tab, and the first relief portion is provided within a protruding height range of the contact portion. The female terminal fitting according to claim 2.   In the main body portion, an over-deflection restricting portion that restricts over-deflection of the first spring portion by abutting against the first spring portion to be deformed is provided, and at least the first spring portion is restricted to the over-deflection. 4. The female terminal fitting according to claim 1, wherein the second escape portion is configured to escape so as not to come into contact with the first spring portion when in contact with the portion. 5. . The second relief portion, wherein the front end of the second spring portion is plastically deformed, pre SL any one of claims 1 to 4, characterized in that it is formed by Rukoto reducing the thickness of the front portion The manufacturing method of the female terminal metal fitting of description.

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