JP2013025988A - Female terminal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain plastic deformation of an elastic contact piece by restraining a pin-like connection part from excessively pressing the elastic contact piece.SOLUTION: A female terminal fitting 10 is mounted to a charging connector housing (not shown) that can be fitted with a vehicle-side connector housing (not shown) to which a male terminal fitting 30 is mounted. The female terminal fitting 10 is provided with a square cylindrical connection part 11 in which a columnar pin-like connection part 31 provided on the male terminal fitting 30 is inserted backward from a front. The cylindrical connection part 11 comprises an elastic contact piece 14 elastically contactable with the pin-like connection part 31, a first correction part 18 correcting the pin-like connection part 31 to a normal insertion posture relative to the cylindrical connection part 11 when the pin-like connection part 31 is inserted in the cylindrical connection part 11, and a second correction part 19 correcting the pin-like connection part 31 to a normal extraction posture relative to the cylindrical connection part 11 when the pin-like connection part 31 is extracted from the cylindrical connection part 11.

Description

  The present invention relates to a female terminal fitting.

  For example, what is described in Patent Document 1 is known as a female terminal fitting to be attached to a charging connector of an electric vehicle or the like. This has a substantially cylindrical shape and is provided with a cylindrical connecting portion formed of a plurality of elastic contact pieces that can be elastically deformed. A cylindrical pin-shaped connecting portion provided in the male terminal fitting can be inserted into the cylindrical connecting portion, and the pin-shaped connecting portion is sandwiched between a plurality of elastic contact pieces, so that the female terminal fitting and the male connecting fitting can be inserted. The mold terminal fitting is connected to be conductive.

JP-A-10-116644

  By the way, such a cylindrical connecting part is formed into a substantially cylindrical shape extending in the front-rear direction by cutting a conductive metal rod such as copper, and a plurality of slits extending rearward from the front edge are formed by slitting. By doing so, since it is divided into a plurality of elastic contact pieces that can be elastically deformed, the female terminal fitting has a high material cost and a high processing cost. For this reason, forming the female terminal metal fitting which has a cylindrical cylindrical connection part by pressing a conductive metal plate material is examined.

  However, a female terminal fitting formed by pressing a metal plate material requires that the metal plate material be thin in order to perform the press processing. Generally, a female terminal fitting formed by pressing a metal plate material is used. The metal fitting tends to be thinner than a female terminal fitting formed by cutting a metal bar. If the plate thickness of the metal plate is thin, the strength of the elastic contact piece formed with the same plate thickness as the metal plate decreases, and the pin-like connection part of the male terminal fitting is inclined with respect to the cylindrical connection part. When inserted and removed in a posture, the elastic contact piece is excessively pressed by the pin-like connecting portion and plastically deformed. And if an elastic contact piece deforms plastically, the contact pressure of the elastic contact piece with respect to a pin-shaped connection part will become inadequate, and conduction | electrical_connection with a female terminal metal fitting and a male terminal metal fitting will become unstable.

  The present invention has been completed based on the above circumstances, and it is an object of the present invention to suppress the pin-shaped connecting portion from excessively pressing the elastic contact piece and to suppress plastic deformation of the elastic contact piece. To do.

  As a means for achieving the above object, the present invention provides a female terminal fitting attached to a charging connector housing that can be fitted to a vehicle-side connector housing to which a male terminal fitting is attached, and having a rectangular cross section. A cylindrical pin-shaped connecting portion provided on the male terminal fitting is inserted into the cylindrical connecting portion from the front to the rear, and the cylindrical connecting portion has the same cylindrical connection. An elastic contact piece that protrudes inwardly from the wall portion of the portion and is elastically contactable with the pin-like connection portion, and is arranged in front of the elastic contact piece, and the pin-like connection to the cylindrical connection portion When the portion is inserted, the pin-like connecting portion is in a normal insertion posture with respect to the cylindrical connecting portion so that the axis of the pin-like connecting portion and the axis of the cylindrical connecting portion coincide with each other. A first correcting part to be corrected, and arranged behind the elastic contact piece, When the pin-like connecting portion is pulled out from the cylindrical connecting portion, the pin-like connecting portion is removed from the cylindrical connecting portion in a state where the axis of the pin-like connecting portion and the axis of the cylindrical connecting portion coincide with each other. It has a feature in that it is configured to include a second correction part that corrects the pin-like connection part to a normal extraction posture with respect to the cylindrical connection part so as to be pulled out.

According to the female terminal fitting having such a configuration, when the pin-shaped connecting portion is inserted into the cylindrical connecting portion, the first correction portion is positioned in front of the elastic contact piece and the shaft center of the pin-shaped connecting portion and the tube. The pin-shaped connecting portion is corrected with respect to the cylindrical connecting portion by correcting the posture of the pin-shaped connecting portion with respect to the cylindrical connecting portion so that the normal insertion posture matches the axis of the cylindrical connecting portion. It can be inserted in a regular insertion posture.
In addition, when the pin-shaped connecting portion is pulled out from the cylindrical connecting portion, the second straightening portion is aligned with the axis of the pin-shaped connecting portion and the axis of the cylindrical connecting portion behind the elastic contact piece. Since the pin-like connecting portion can be corrected with respect to the cylindrical connecting portion so that the pin-like connecting portion is pulled out from the cylindrical connecting portion in the pulling-out posture, the pin-like connecting portion is properly connected from the cylindrical connecting portion. It can be pulled out with a pulling posture. Thereby, it is suppressed that the pin-shaped connecting portion excessively presses the elastic contact piece and the elastic contact piece is plastically deformed, and the contact pressure of the elastic contact piece to the pin-shaped connecting portion is suppressed from becoming insufficient. Can do.

The following configuration is preferable as an embodiment of the present invention.
The first straightening portion and the second straightening portion may be formed by knocking out each wall portion of the cylindrical connecting portion toward the inner surface side.
According to such a structure, the 1st and 2nd correction | amendment part can be easily formed in the inner surface of each wall part by knocking out each wall part of a cylindrical connection part to an inner surface side.

The first correction part and the second correction part may be formed in a rib shape extending in the front-rear direction.
According to such a configuration, the pin-shaped connecting portion can be inserted and removed along the rib-shaped first and second straightening portions extending in the front-rear direction in the cylindrical connecting portion. It is possible to surely correct the normal posture with respect to the connecting portion.

The first correction portions formed on the adjacent wall portions may be arranged so as to be shifted in the front-rear direction.
According to such a configuration, it is possible to disperse the insertion resistance when the pin-like connection portion is inserted into the cylindrical connection portion, and to reduce the insertion resistance applied at a time.

The 1st correction part formed in the same wall part as the wall part in which the said elastic contact piece was formed is good also as a structure distribute | arranged ahead rather than the 1st correction part formed in the different wall part.
According to such a configuration, the first correction portion formed on the same wall portion as the wall portion on which the elastic contact piece is formed is a pin in the initial stage where the pin-like connection portion is inserted into the cylindrical connection portion. When the tip of the pin-like connection part is inserted into the cylindrical connection part, the pin-like connection part is pushed by all the first correction parts. By centering with respect to the cylindrical connecting portion, the axis of the pin-like connecting portion and the axis of the cylindrical connecting portion can be aligned. Thereby, it can further suppress that an elastic contact piece is excessively pressed and an elastic contact piece deforms plastically.

The tubular connecting portion may have a structure in which a through-hole penetrating the wall portion of the tubular connecting portion in the thickness direction is formed.
Since the charging connector housing fitted to the vehicle-side connector housing is used outdoors, there is a possibility that foreign matters such as muddy water adhere to the charging connector housing. However, according to the configuration as described above, by providing a through hole in the cylindrical connection portion, foreign matter can be discharged from the through hole. Can be prevented from becoming high.

  According to this invention, it can suppress that a pin-shaped connection part presses an elastic contact piece too much, and can suppress the plastic deformation of an elastic contact piece.

The perspective view which shows the state before inserting a male terminal metal fitting into a female terminal metal fitting Side view Front view of female terminal fitting Plan view VV sectional view of FIG. Sectional view taken along line VI-VI in FIG. Sectional drawing which shows the state in which the male terminal metal fitting was slightly inserted in the female terminal metal fitting of FIG. Side view showing a state in which the male terminal fitting is inserted into the female terminal fitting Sectional drawing which shows the state by which the male terminal metal fitting was inserted to the normal insertion position in the female terminal metal fitting of FIG. Sectional drawing which shows the state by which the male terminal metal fitting was inserted to the normal insertion position in the female terminal metal fitting of FIG. XX sectional view of FIG. XI-XI sectional view of FIG.

<Embodiment>
An embodiment of the present invention will be described with reference to FIGS.
The present embodiment is a female terminal fitting 10 that is mounted on a charging connector housing (not shown), and when the charging connector housing is fitted to a vehicle-side connector housing (not shown) provided in a vehicle such as an electric vehicle. The male terminal fitting 30 mounted on the vehicle-side connector housing is connected to be conductive.

  The female terminal fitting 10 is formed by pressing a conductive metal plate material. As shown in FIGS. 1 and 2, the female terminal fitting 10 includes a cylindrical connecting portion 11 into which a cylindrical pin-like connecting portion 31 formed in the male terminal fitting 30 is inserted, and a cylindrical connecting portion 11. And a barrel portion 13 formed via a connecting portion 12 at the rear of the device.

  As shown in FIG. 3, the cylindrical connecting portion 11 is formed in a hollow cylindrical shape having a rectangular cross section with a square section having substantially the same length on the four sides and an open front end. Further, as shown in FIGS. 2 and 4, the cylindrical connecting portion 11 is formed to have a length that is approximately half the length of the female terminal fitting 10 that extends in the front-rear direction, as shown in FIGS. 8 to 10. In addition, most of the pin-like connecting portion 31 in the male terminal fitting 30 is inserted into the cylindrical connecting portion 11.

  As shown in FIGS. 5 and 9, the cylindrical connecting portion 11 is formed with a pair of elastic contact pieces 14 that protrude inward from the cylindrical connecting portion 11. As shown in FIG. 2, the pair of elastic contact pieces 14 are respectively formed by providing slits 15 on the side walls located on both sides in the left-right direction of the cylindrical connection portion 11. The pin-like connecting portion 31 inserted into the connecting portion 11 can be elastically sandwiched from both sides in the left-right direction.

  As shown in FIG. 2, the slit 15 is formed in a substantially U shape by connecting the front end portion of the slit extending in the front-rear direction in the vertical direction, and the elastic contact piece 14 is formed as shown in FIG. The portion surrounded by the slit 15 is formed in a cantilever shape by projecting inside the cylindrical connecting portion 11. Specifically, the elastic contact piece 14 is formed in a cantilever shape that protrudes into the cylindrical connection portion 11 toward the front from the side wall of the cylindrical connection portion 11, and can be elastically deformed in the left-right direction. . Further, the rear end portion of the elastic contact piece 14 is a base end portion, and the front end portion of the elastic contact piece 14 is a free end. Note that the front end of the elastic contact piece 14 is slightly outward so that it does not hit the tip of the pin-like connecting portion 31 when the pin-like connecting portion 31 is inserted into the cylindrical connecting portion 11. It is bent.

  As shown in FIG. 5, the bottom wall 16 located at the lower end of the cylindrical connecting portion 11 is formed in common with the connecting portion 12 and the barrel portion 13. The bottom wall 16 is formed with a plurality of (two in this embodiment) through-holes 17 penetrating the bottom wall 16 in the plate thickness direction (vertical direction), and the water that has entered the cylindrical connecting portion 11 is formed. Foreign matter such as water and muddy water can be discharged to the outside through the through hole 17. The through-hole 17 located in the cylindrical connecting portion 11 is a lance hole that engages with a lance provided in the charging connector housing when the female terminal fitting 10 is mounted in the charging connector housing. ing.

  As shown in FIGS. 1 and 2, the barrel portion 13 includes a wire barrel 13A located on the front side and an insulation barrel 13B located on the rear side of the wire barrel 13A. The wire barrel 13 </ b> A is caulked and crimped to a core wire exposed at an end of an electric wire (not shown) to connect the female terminal fitting 10 and the electric wire so as to be conductive. On the other hand, the insulation barrel 13B is configured to fix the female terminal fitting 10 to the electric wire by being crimped and crimped to the coating at the end of the electric wire.

As shown in FIGS. 3, 5, and 6, the first straightening portion 18 disposed in front of the elastic contact piece 14 and the elastic contact piece are provided on the upper, lower, left, and right wall portions of the cylindrical connection portion 11. 14 and a second correction portion 19 disposed rearward of 14 is formed.
The 1st correction part 18 comprises the rib shape extended in the front-back direction, and is formed one each in the short side direction approximate center part in each wall part of the cylindrical connection part 11. As shown in FIG. Moreover, the 1st correction part 18 is formed in all the wall parts of the upper, lower, left, and right sides by knocking out the wall part of the cylindrical connection part 11 from the outer side toward the inner side, and the first correction part 18 from the wall part is formed. As shown in FIG. 3, the protruding dimension of is set smaller than the protruding dimension of the elastic contact piece 14 from the side wall. Therefore, when the pin-like connection part 31 is inserted into the cylindrical connection part 11, as shown in FIG. 9, the pin-like connection part 31 can be clamped from both sides in the left-right direction by both elastic contact pieces 14. It is like that.

  Moreover, the 1st correction part 18 formed in the side wall of the left-right direction both sides in the cylindrical connection part 11 among the 1st correction parts 18 is a front-end opening of the cylindrical connection part 11, as shown in FIG.5 and FIG.6. The first correction portions 18 formed on the edge portions and formed on the wall portions on both sides in the up-down direction are behind the first correction portions 18 formed on the side walls on both sides in the left-right direction, and the elastic contact pieces 14 It is formed at a position that is further forward. That is, among the first straightening portions 18, the first straightening portions 18 formed on the same wall portion on the both sides in the left-right direction on which the elastic contact pieces 14 are formed are arranged on the adjacent wall portions on the both sides in the vertical direction. It is arranged ahead of the first straightening portion 18.

  Further, each of the first correction portions 18, with respect to the outer peripheral surface of the pin-like connection portion 31, when the pin-like connection portion 31 is inserted into the cylindrical connection portion 11, as shown in FIGS. 9 to 11. The pin-shaped connecting portions 31 are arranged along the front-rear direction and have a slight clearance (not shown) between the first straightening portions 18 and the upper, lower, left and right ends of the pin-shaped connecting portions 31. Is inserted into the cylindrical connecting portion 11 while being centered.

On the other hand, as shown in FIG.5 and FIG.6, the 2nd correction | amendment part 19 comprises the rib shape long in the front-back direction rather than the 1st correction | amendment part 18, and the short side direction approximate center in each wall part of the cylindrical connection part 11 is shown. One is formed in the part. The 2nd correction part 19 is formed in all the wall parts of the upper, lower, left, and right sides by knocking out each wall part of the cylindrical connection part 11 from the outer side toward the inner side. Unlike the correction part 18, it forms along with the circumferential direction, without shifting | deviating to the front-back direction.
As shown in FIGS. 9, 10, and 12, when the pin-like connecting portion 31 is inserted to the normal position with respect to the tubular connecting portion 11, the second straightening portion 19 is connected to the pin-like connecting portion 31. It is arranged along the front-rear direction with respect to the tip part, and has a slight clearance (not shown) between each second correction part 19 and the upper, lower, left and right ends of the pin-like connection part 31. The distal end portion of the pin-like connecting portion 31 is inserted with being centered with respect to the inner portion of the cylindrical connecting portion 11.

  The female terminal fitting 10 of the present embodiment has the structure as described above. Next, when the pin-like connecting portion 31 of the male terminal fitting 30 is inserted into the cylindrical connecting portion 11 of the female terminal fitting 10. Next, the operation and effect when the pin-like connection portion 31 is extracted from the cylindrical connection portion 11 will be described.

  The cylindrical connection portion 11 of the female terminal fitting 10 is disposed facing the pin-like connection portion 31 of the male terminal fitting 30, and the pin-like connection portion 31 is inserted into the cylindrical connection portion 11. In this insertion process, first, when the tip end portion of the pin-shaped connecting portion 31 is slightly inserted into the cylindrical connecting portion 11, the first correcting portions 18 arranged on the left and right of the cylindrical connecting portion 11 The posture in the left-right direction of the pin-like connecting portion 31 with respect to the cylindrical connecting portion 11 is corrected.

Thereafter, the vertical orientation of the pin-like connecting portion 31 with respect to the cylindrical connecting portion 11 is corrected by the first straightening portions 18 arranged above and below the cylindrical connecting portion 11, and as shown in FIG. 11 is a normal insertion posture in which the axial center of the pin-like connecting portion 31 and the axial center of the cylindrical connecting portion 11 coincide with each other. Thereby, the pin-shaped connection part 31 can be inserted with respect to the cylindrical connection part 11 with a regular insertion posture.
Moreover, since the 1st correction part 18 is formed in the rib shape extended in the front-back direction, the pin-shaped connection part 31 can be inserted along the 1st correction part 18 in the cylindrical connection part 11. FIG. Therefore, the pin-shaped connecting portion 31 can be reliably inserted into the cylindrical connecting portion 11 in a normal insertion posture.

  When the pin-like connecting part 31 is further inserted into the cylindrical connecting part 11 while the pin-like connecting part 31 is corrected to the normal insertion posture with respect to the cylindrical connecting part 11, the pair of pin-like connecting parts 31 is paired. By elastically deforming the elastic contact piece 14 outward in the left-right direction, the pin-like connecting portion 31 is sandwiched by the pair of elastic contact pieces 14 from both sides in the left-right direction. Thereby, the female terminal metal fitting 10 and the male terminal metal fitting 30 are connected so as to be conductive.

  When the pin-like connecting portion 31 reaches the normal insertion position with respect to the cylindrical connecting portion 11, as shown in FIGS. 9 and 10, the tip end portion of the pin-like connecting portion 31 has four second correcting portions 19. And arranged along the front-rear direction.

  Next, when the pin-shaped connecting portion 31 is extracted from the cylindrical connecting portion 11, the pin-shaped connecting portion 31 is held from the cylindrical connecting portion 11 in a normal extraction posture with respect to the cylindrical connecting portion 11. The pin-like connecting portion 31 is released. In this extraction process, in the first stage of extracting the pin-like connection part 31 from the cylindrical connection part 11, the charging connector housing may be extracted in an oblique posture with respect to the vehicle-side connector housing. A force that squeezes the distal end portion of the pin-like connecting portion 31 acts on the inner portion of the cylindrical connecting portion 11 in which the distal end portion is disposed.

  However, according to the present embodiment, the second straightening portion 19 corrects the posture of the pin-like connecting portion 31 at the position where the tip portion of the pin-like connecting portion 31 is arranged, so that the pin-like shape with respect to the cylindrical connecting portion 11 is obtained. The pin-like connecting portion 31 can be detached from the tubular connecting portion 11 while maintaining the normal extraction posture without the connecting portion 31 being inclined.

  As described above, according to the present embodiment, when the pin-shaped connecting portion 31 is inserted into the cylindrical connecting portion 11, the first correcting portion 18 is connected to the axial center of the pin-shaped connecting portion 31 and the cylindrical connecting portion 11. The posture of the pin-like connecting portion 31 is corrected with respect to the cylindrical connecting portion 11 so that the normal insertion posture coincides with the axial center of the pin, and the pin-like connecting portion 31 is inserted into the cylindrical connecting portion 11 in a normal insertion posture. It can be inserted in the state.

  Further, when the pin-like connecting portion 31 is pulled out from the cylindrical connecting portion 11 and separated, the second correcting portion 19 is connected in a pin-like manner at the back of the cylindrical connecting portion 11 that is behind the elastic contact piece 14. The pin-like connecting portion 31 is pulled out from the cylindrical connecting portion 11 in a normal extraction posture in which the axis of the portion 31 and the axis of the cylindrical connecting portion 11 are aligned. The posture of the connecting portion 31 can be corrected, and the pin-like connecting portion 31 can be detached from the cylindrical connecting portion 11 while being in a normal extraction posture. Thereby, when the pin-shaped connection part 31 is inserted / removed with respect to the cylindrical connection part 11, it suppresses that the pin-shaped connection part 31 presses the elastic contact piece 14 too much, and the elastic contact piece 14 deforms plastically. can do. As a result, it can suppress that the contact pressure of the elastic contact piece 14 with respect to the pin-shaped connection part 31 becomes inadequate.

Moreover, according to this embodiment, in the first stage in which the pin-shaped connecting portion 31 is inserted into the cylindrical connecting portion 11, the first correction portions 18 arranged on the left and right side excessively press the elastic contact piece 14. Correct the possible left-right posture, and then, with the first correction unit 18 arranged vertically, the first correction unit 18 arranged on the left and right, the pin-like connection part 31 to the cylindrical connection part 11 By centering, the axis of the pin-like connecting part 31 and the axis of the cylindrical connecting part 11 can be matched. Thereby, it can suppress reliably that the elastic contact piece 14 is excessively pressed by the pin-shaped connection part 31, and the elastic contact piece 14 deforms plastically.
Furthermore, according to this embodiment, since the 1st correction part 18 located in the left and right and the 1st correction part 18 located up and down are shifted and formed in the front-back direction, the pin-shaped connection part 31 is a cylindrical connection. The insertion resistance when inserted into the portion 11 can be dispersed. Thereby, the insertion resistance concerning one time at the time of inserting the pin-shaped connection part 31 in the cylindrical connection part 11 can be reduced.

  In addition, according to the present embodiment, by pressing a conductive metal plate material, the rectangular tubular connecting portion 11 is formed, and each wall portion of the cylindrical connecting portion 11 is knocked out toward the inner surface side. Since the first and second straightening portions 18 and 19 are formed on the inner surface of each wall portion, the material cost is reduced as compared with the female terminal fitting formed by cutting the metal rod, Processing costs can be reduced. Thereby, the manufacturing cost of the female terminal metal fitting 10 can be reduced compared with the past.

  By the way, when the female terminal fitting 10 is being conveyed, there is a concern that the cylindrical connecting portion 11 is deformed by the female terminal fittings 10 coming into contact with each other. However, according to the female terminal fitting 10 of the present embodiment, the metal plate material is pressed into a rectangular tube shape to form the cylindrical connection portion 11, so that the metal plate material having the same plate thickness is pressed into a cylindrical shape. Compared with the cylindrical connection part formed by processing, the strength of the cylindrical connection part 11 can be increased. Thereby, compared with the cylindrical connection part formed in the cylindrical shape, it can suppress that the cylindrical connection part 11 deform | transforms in the middle of conveyance.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the first and second straightening portions 18 and 19 are formed in a rib shape by knocking out the wall portion of the cylindrical connecting portion 11, but the present invention is limited to such a mode. Instead, for example, the wall portion of the cylindrical connecting portion may be formed into a rib shape by pressing.
(2) In the said embodiment, it was set as the structure by which the 1st correction part 18 distribute | arranged right and left and the 1st correction part 18 distribute | arranged up and down were arrange | positioned and shifted | deviated in the front-back direction among the 1st correction parts 18. However, the present invention is not limited to such an embodiment, and for example, all the first, right, and left first correction portions may be formed side by side in the circumferential direction without shifting in the front-rear direction.

(3) In the above embodiment, the first and second correction portions 18 and 19 are configured in the shape of ribs extending in the front-rear direction, but the present invention is not limited to such an embodiment. You may comprise a 2nd correction | amendment part in protrusion shape.
(4) In the above embodiment, the first and second correction portions 18 and 19 are formed one by one for each wall portion, but the present invention is not limited to such an embodiment. You may form two or more 1st and 2nd correction | amendment parts with respect to each wall part.
(5) In the above embodiment, the through hole 17 is formed only on the bottom wall 16, but the present invention is not limited to such an embodiment, and for example, the through hole is formed also on the side wall of the cylindrical connecting portion. May be.

10: Female terminal fitting 11: Cylindrical connecting portion 14: Elastic contact piece 17: Through hole 18: First correcting portion 19: Second correcting portion 30: Male terminal fitting 31: Pin-shaped connecting portion

Claims (6)

A female terminal fitting attached to a charging connector housing that can be fitted with a vehicle side connector housing to which a male terminal fitting is attached,
It has a rectangular tube shape with a square cross section, and includes a cylindrical connection portion into which a cylindrical pin-shaped connection portion provided in the male terminal fitting is inserted from the front toward the rear,
The cylindrical connecting portion is
An elastic contact piece that protrudes inward from the wall of the cylindrical connection part and is elastically contactable with the pin-like connection part;
When arranged in front of the elastic contact piece and when the pin-like connecting portion is inserted into the cylindrical connecting portion, the axis of the pin-like connecting portion coincides with the axis of the cylindrical connecting portion. A first correction part for correcting the pin-like connection part to a normal insertion posture with respect to the cylindrical connection part,
A state in which the axis of the pin-like connecting portion and the axis of the cylindrical connecting portion coincide with each other when the pin-like connecting portion is pulled out from the cylindrical connecting portion, being arranged behind the elastic contact piece And a second correction part that corrects the pin-like connection part to a normal extraction posture with respect to the cylindrical connection part so that the pin-like connection part is pulled out from the cylindrical connection part. Female terminal fitting.   2. The female terminal fitting according to claim 1, wherein the first straightening portion and the second straightening portion are formed by knocking each wall portion of the cylindrical connection portion toward the inner surface side.   The female terminal fitting according to claim 1 or 2, wherein the first correction part and the second correction part are formed in a rib shape extending in the front-rear direction.   4. The female terminal fitting according to claim 2, wherein the first correction portions respectively formed on adjacent wall portions are arranged to be shifted in the front-rear direction.   The first correction part formed on the same wall part as the wall part on which the elastic contact piece is formed is arranged in front of a first correction part formed on a different wall part. The female terminal fitting according to any one of claims 2 to 4.   The through-hole which penetrates the wall part of the said cylindrical connection part in a plate | board thickness direction is formed in the said cylindrical connection part, The Claim 1 thru | or 5 characterized by the above-mentioned. Female terminal fitting.

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