JP2014170659A

JP2014170659A - Female terminal

Info

Publication number: JP2014170659A
Application number: JP2013041426A
Authority: JP
Inventors: Naotaka Tanigawa; 直孝谷川
Original assignee: Sumitomo Wiring Systems Ltd
Current assignee: Sumitomo Wiring Systems Ltd
Priority date: 2013-03-04
Filing date: 2013-03-04
Publication date: 2014-09-18

Abstract

PROBLEM TO BE SOLVED: To reduce insertion resistance when starting insertion while securing connection stability between a female terminal and an elastic piece.SOLUTION: A female terminal 10 having a square cylindrical connection tube part 11 in which a male terminal 50 having a flat plate-like tab part 51 is inserted from the front includes a first elastic piece 15 provided in the connection tube part 11 and elastically making contact with the tip part of the tab part 51 by being pressed in a vertical direction crossing the insertion direction of the tab part 51, and a second elastic piece 19 having a second contact part 22 disposed on further front side than a position where the tab part 51 presses the first elastic piece 15 in the connection tube part 11 and pressed against the lower surface 51A of the tab part 51 from the lower part after the tab part 51 presses the first elastic piece 15.

Description

本発明は、雌端子に関する。 The present invention relates to a female terminal.

従来、雄端子と電気的に接続される雌端子として、下記特許文献１に記載のものが知られている。この雌端子は、雄端子が挿入される接続筒部（特許文献１では角筒部と称す）と、接続筒部内に設けられ雄端子に弾性的に接触可能な弾性片（特許文献１では弾性接触片と称す）とを備えて構成されている。この弾性片は、雄端子が接続筒部内に挿入されると、雄端子に弾性的に接触し、雄端子と雌端子とが電気的に接続されるようになっている。 Conventionally, as a female terminal electrically connected with a male terminal, the thing of the following patent document 1 is known. The female terminal includes a connecting tube portion (referred to as a square tube portion in Patent Document 1) into which the male terminal is inserted, and an elastic piece (elastic in Patent Document 1) that is provided in the connecting tube portion and can elastically contact the male terminal. (Referred to as a contact piece). When the male terminal is inserted into the connecting tube portion, the elastic piece elastically contacts the male terminal, and the male terminal and the female terminal are electrically connected.

特開２００６−２１６３１４号公報JP 2006-216314 A

ところで、雄端子と弾性片との接続安定性を向上させるためには、一般に雄端子への弾性片の接触荷重を高くすることが考えられる。
ところが、接触荷重を高くすると、接続筒部に雄端子を挿入する挿入抵抗が高くなってしまい、両端子を接続する作業性が悪くなってしまう。 By the way, in order to improve the connection stability between the male terminal and the elastic piece, it is generally considered to increase the contact load of the elastic piece to the male terminal.
However, when the contact load is increased, the insertion resistance for inserting the male terminal into the connection tube portion is increased, and the workability of connecting both terminals is deteriorated.

本発明は上記のような事情に基づいて完成されたものであって、雄端子と弾性片との接続安定性を確保しつつ、雄端子の挿入抵抗を低減させることを目的とする。 The present invention has been completed based on the above circumstances, and an object thereof is to reduce the insertion resistance of the male terminal while ensuring the connection stability between the male terminal and the elastic piece.

上記の目的を達成するための手段として本発明は、板状の雄端子が前方から挿入される接続筒部を有する雌端子であって、前記接続筒部内に設けられ、前記雄端子によって同雄端子の挿入方向と交差する方向に押圧されることにより、同雄端子に弾性的に接触する第一弾性片と、前記接続筒部内において前記雄端子が前記第一弾性片を押圧する位置よりも前方に配され、前記雄端子が前記第一弾性片を押圧した後に、前記雄端子の板面に対して同雄端子の挿入方向と交差する方向に押し当てられる第二弾性片とを備えているところに特徴を有する。 As a means for achieving the above object, the present invention provides a female terminal having a connecting tube portion into which a plate-shaped male terminal is inserted from the front, and is provided in the connecting tube portion. By being pressed in a direction crossing the terminal insertion direction, a first elastic piece that elastically contacts the same male terminal, and a position where the male terminal presses the first elastic piece in the connection tube portion. A second elastic piece arranged forward and pressed against the plate surface of the male terminal in a direction crossing the insertion direction of the male terminal after the male terminal presses the first elastic piece. It has a characteristic where it exists.

このような構成の雌端子によると、第一弾性片が雄端子に押圧された後、雄端子の板面に対して第二弾性片が押し当てられる。すなわち、第二弾性片と雄端子とが接触する位置が、雄端子が第一弾性片を押圧する位置よりも雄端子の挿入方向に対して後方に配され、雄端子の先端部がまず第一弾性片を押圧し、その後さらに雄端子の先端部が第二弾性片を押圧するような構成に比べて、雄端子の挿入抵抗を低減させることができる。
また、雄端子の先端部が弾性片を複数回に亘って押圧する場合、雄端子の先端部が弾性片を押圧する度に挿入抵抗が大きくなり、挿入フィーリングが悪化する嫌いがある。ところが、上記の構成によると、第二弾性片が雄端子の板面に対して押し当てられることになるので、雄端子の先端部が弾性片を複数回に亘って押圧する場合に比べて、雄端子の挿入フィールリングを滑らかにすることができる。 According to the female terminal having such a configuration, after the first elastic piece is pressed against the male terminal, the second elastic piece is pressed against the plate surface of the male terminal. That is, the position where the second elastic piece and the male terminal are in contact with each other is arranged rearward with respect to the insertion direction of the male terminal with respect to the position where the male terminal presses the first elastic piece. The insertion resistance of the male terminal can be reduced as compared with a configuration in which one elastic piece is pressed and then the tip of the male terminal further presses the second elastic piece.
Moreover, when the front-end | tip part of a male terminal presses an elastic piece in multiple times, every time the front-end | tip part of a male terminal presses an elastic piece, insertion resistance becomes large and there exists a dislike that an insertion feeling deteriorates. However, according to the above configuration, since the second elastic piece is pressed against the plate surface of the male terminal, compared to the case where the tip of the male terminal presses the elastic piece multiple times, The insertion feel ring of the male terminal can be made smooth.

本発明の実施の態様として、以下の構成が好ましい。
前記第二弾性片は、前記第一弾性片に連なって設けられており、前記第一弾性片が押圧されて弾性変位することにより、前記第一弾性片に連動して前記第二弾性片が弾性変位して前記雄端子に押し当てられる構成としてもよい。
このような構成にすると、例えば第一弾性片と第二弾性片とを個別に設け、第一弾性片が第二弾性片を押圧することにより前記第一弾性片に連動して、第二弾性片が雄端子に押し当てられるような複雑な構造に比べて、接続筒部の構造を簡素化することができる。 The following configuration is preferable as an embodiment of the present invention.
The second elastic piece is provided continuously to the first elastic piece. When the first elastic piece is pressed and elastically displaced, the second elastic piece is interlocked with the first elastic piece. It is good also as a structure which is elastically displaced and pressed on the said male terminal.
With such a configuration, for example, the first elastic piece and the second elastic piece are individually provided, and the first elastic piece presses the second elastic piece, thereby interlocking with the first elastic piece and the second elastic piece. Compared with a complicated structure in which the piece is pressed against the male terminal, the structure of the connecting tube portion can be simplified.

前記第一弾性片は、前記接続筒部の前端部から後方に向かって延びた形態とされており、前記第二弾性片は、前記第一弾性片の後端部から前方に折り返され、前記第一弾性片と幅方向に並んで配されている構成としてもよい。
このような構成によると、例えば、接続筒部の後端部から前方に向かって延びる第一弾性片の前端に、前方に向かってさらに延出された第二弾性片が設けられている場合に比べて、接続筒部の前後方向の長さ寸法を短くすることができる。 The first elastic piece is configured to extend rearward from the front end portion of the connection cylinder portion, and the second elastic piece is folded forward from the rear end portion of the first elastic piece, It is good also as a structure arranged along with the 1st elastic piece and the width direction.
According to such a configuration, for example, when the second elastic piece further extending forward is provided at the front end of the first elastic piece extending forward from the rear end portion of the connecting cylinder portion. In comparison, the length dimension of the connecting tube portion in the front-rear direction can be shortened.

また、第一弾性片と第二弾性片とを幅方向に並べて形成する場合、一般に金属板材を打ち抜き加工するなどしてスリットを形成し、第一弾性片と第二弾性片とを幅方向に並べて形成する方法が考えられるが、この場合には、スリットを成形する金型の耐久性を持たせるため、スリットの幅寸法を金属板材の板厚寸法よりも大きくすることが望ましい。しかしながら、スリットを板厚寸法よりも大きく設定すると、接続筒部の幅寸法が大きくなってしまい、雌端子が幅方向に大型化してしまう。
ところが、上記のような構成によると、第一弾性片に対して第二弾性片を折り返して、第一弾性片と第二弾性片とを幅方向に並べて配したから、第一弾性片と第二弾性片との間の隙間を板厚寸法よりも小さく設定することができ、接続筒部を幅方向に小型化することができる。 Further, when the first elastic piece and the second elastic piece are formed side by side in the width direction, generally, a slit is formed by punching a metal plate or the like, and the first elastic piece and the second elastic piece are arranged in the width direction. A method of forming them side by side is conceivable. In this case, it is desirable to make the width dimension of the slit larger than the plate thickness dimension of the metal plate material in order to provide durability of the mold for forming the slit. However, if the slit is set to be larger than the plate thickness dimension, the width dimension of the connecting cylinder portion becomes large, and the female terminal becomes large in the width direction.
However, according to the configuration as described above, the second elastic piece is folded back with respect to the first elastic piece, and the first elastic piece and the second elastic piece are arranged side by side in the width direction. The gap between the two elastic pieces can be set smaller than the plate thickness dimension, and the connecting tube portion can be reduced in the width direction.

前記第一弾性片は、前記第二弾性片よりも少数に設けられている構成としてもよい。
このような構成によると、例えば、第一弾性片と第二弾性片とを合わせた数を一定の数としたときに、第一弾性片が第二弾性片よりも多数に設けられているものに比べて、雄端子の挿入初期の挿入抵抗をさらに低減させることができる。 The first elastic piece may be provided in a smaller number than the second elastic piece.
According to such a configuration, for example, when the total number of the first elastic pieces and the second elastic pieces is a fixed number, the first elastic pieces are provided in a larger number than the second elastic pieces. Compared to the above, the insertion resistance at the initial insertion of the male terminal can be further reduced.

前記第二弾性片は、前記接続筒部の幅方向中央部に配されており、前記第一弾性片は、前記第二弾性片の幅方向両側の領域にそれぞれ配されている構成としてもよい。
このような構成によると、雄端子の挿入初期において接続筒部の幅方向両側で第一弾性片が雄端子に接触し、挿入途中から接続筒部の幅方向中央部において第二弾性片が雄端子に押し当てられる。つまり、雄端子の挿入初期に幅方向中央部を支点に接続筒部が幅方向に回転することを抑制することができる。これにより、接続筒部内に雄端子が不正な姿勢で挿入されることで接続筒部や雄端子が損傷することを防ぐことができる。 The second elastic piece may be arranged in the center portion in the width direction of the connecting cylinder portion, and the first elastic piece may be arranged in regions on both sides in the width direction of the second elastic piece. .
According to such a configuration, the first elastic piece comes into contact with the male terminal on both sides in the width direction of the connecting tube portion at the initial insertion of the male terminal, and the second elastic piece is male in the center portion in the width direction of the connecting tube portion from the middle of the insertion. Pressed against the terminal. That is, it is possible to suppress the connection tube portion from rotating in the width direction with the center portion in the width direction as a fulcrum at the initial insertion of the male terminal. Thereby, it can prevent that a connection cylinder part and a male terminal are damaged because a male terminal is inserted in a connection cylinder part with a wrong posture.

前記第一弾性片は、前記接続筒部の幅方向中央部に配されており、前記第二弾性片は、前記第一弾性片の幅方向両側の領域にそれぞれ配されている構成としてもよい。
例えば、接続筒部内において、幅方向の一側に第二弾性片が偏って設けられている場合、第一弾性片が押圧された力を第二弾性片に伝える際に偏りが生じる虞がある。ところが、上記のような構成によると、第二弾性片が第一弾性片の幅方向両側の領域にそれぞれ配されているから、第一弾性片から各第二弾性片に伝わる力の偏りを低減することができる。これにより、幅方向の一側に第二弾性片が偏って設けられている場合に比べて、雄端子への第二弾性片の接圧の偏りを低減することができる。 The first elastic piece may be arranged in the center portion in the width direction of the connecting tube portion, and the second elastic piece may be arranged in regions on both sides in the width direction of the first elastic piece. .
For example, when the second elastic piece is biased and provided on one side in the width direction in the connecting tube portion, there is a possibility that the bias occurs when the force pressed by the first elastic piece is transmitted to the second elastic piece. . However, according to the above configuration, since the second elastic pieces are arranged in the regions on both sides in the width direction of the first elastic piece, the bias of the force transmitted from the first elastic piece to each second elastic piece is reduced. can do. Thereby, compared with the case where the 2nd elastic piece is biased and provided in one side of the width direction, the bias of the contact pressure of the 2nd elastic piece to a male terminal can be reduced.

本発明によれば、雄端子と弾性片との接続安定性を確保しつつ、雄端子の挿入抵抗を低減させることができる。 ADVANTAGE OF THE INVENTION According to this invention, the insertion resistance of a male terminal can be reduced, ensuring the connection stability of a male terminal and an elastic piece.

実施形態１に係る雌端子の正面図The front view of the female terminal concerning Embodiment 1 同平面図Plan view 図１のＡ−Ａ線における斜視断面図1 is a perspective sectional view taken along line AA in FIG. 実施形態１に係る雌端子の展開状態を示す平面図The top view which shows the expansion | deployment state of the female terminal which concerns on Embodiment 1. 接続筒部に雄端子を挿入する前の状態を示す断面図であって、図２のＢ−Ｂ線における断面に相当する断面図Sectional drawing which shows the state before inserting a male terminal in a connection cylinder part, Comprising: Sectional drawing corresponded in the cross section in the BB line of FIG. 接続筒部に雄端子を挿入する前の状態を示す断面図であって、図２のＣ−Ｃ線における断面に相当する断面図Sectional drawing which shows the state before inserting a male terminal in a connection cylinder part, Comprising: Sectional drawing corresponded in the cross section in the CC line of FIG. 雄端子と第一弾性片とが当接した状態を示す断面図であって、図２のＢ−Ｂ線における断面に相当する断面図Sectional drawing which shows the state which the male terminal and the 1st elastic piece contact | abutted, Comprising: Sectional drawing corresponded in the cross section in the BB line of FIG. 雄端子と第一弾性片とが当接した状態を示す断面図であって、図２のＣ−Ｃ線における断面に相当する断面図Sectional drawing which shows the state which the male terminal and the 1st elastic piece contact | abutted, Comprising: Sectional drawing corresponded in the cross section in CC line of FIG. 雄端子が第一弾性片を押圧し、雄端子に第二接点部が押し当てられた状態を示す断面図であって、図２のＢ−Ｂ線における断面に相当する断面図Sectional drawing which shows the state in which the male terminal pressed the 1st elastic piece, and the 2nd contact part was pressed against the male terminal, Comprising: Sectional drawing equivalent to the cross section in the BB line of FIG. 雄端子が第一弾性片を押圧し、雄端子に第二接点部が押し当てられた状態を示す断面図であって、図２のＣ−Ｃ線における断面に相当する断面図Sectional drawing which shows the state in which the male terminal pressed the 1st elastic piece and the 2nd contact part was pressed against the male terminal, Comprising: Sectional drawing equivalent to the cross section in the CC line of FIG. 接続筒部に対して雄端子が正規の位置まで挿入された状態を示す断面図であって、図２のＢ−Ｂ線における断面に相当する断面図Sectional drawing which shows the state by which the male terminal was inserted to the regular position with respect to the connection cylinder part, Comprising: Sectional drawing corresponded in the cross section in the BB line of FIG. 接続筒部に対して雄端子が正規の位置まで挿入された状態を示す断面図であって、図２のＣ−Ｃ線における断面に相当する断面図It is sectional drawing which shows the state by which the male terminal was inserted to the regular position with respect to the connection cylinder part, Comprising: Sectional drawing corresponded in the cross section in the CC line of FIG. 実施形態２に係る雌端子の正面図Front view of female terminal according to embodiment 2 図１３のＤ−Ｄ線における斜視断面図FIG. 13 is a cross-sectional perspective view taken along line DD in FIG. 実施形態２に係る雌端子の展開状態を示す平面図The top view which shows the expansion | deployment state of the female terminal which concerns on Embodiment 2. FIG.

＜実施形態１＞
本発明の実施形態１について図１乃至図１２を参照して説明する。
本実施形態は、雄端子５０と電気的に接続される雌端子１０を例示している。なお、以下の説明において、上下方向とは、図１における上下方向を基準とし、前後方向とは、図５における雌端子１０と雄端子５０との接続方向を基準として、互いに相手側との接続方向を前方として説明する。 <Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS.
This embodiment illustrates the female terminal 10 that is electrically connected to the male terminal 50. In the following description, the vertical direction refers to the vertical direction in FIG. 1, and the front-rear direction refers to the connection between the female terminal 10 and the male terminal 50 in FIG. The direction will be described as the front.

雄端子５０は、導電性に優れた金属板材を曲げ加工することにより形成されており、図５に示すように、前部に平板状のタブ部５１を有している。
雌端子１０は、導電性に優れた金属板材を曲げ加工することにより形成されており、図５に示すように、雄端子５０のタブ部５１が前方から挿入される接続筒部１１と、接続筒部１１の後方に連なって形成された電線圧着部１２とを備えて構成されている。
電線圧着部１２は、電線Ｗの端末において露出した芯線Ｗ１に圧着されるワイヤバレル部１３と、絶縁被覆Ｗ２に圧着されるインシュレーションバレル部１４とを前後に繋げた構成とされている。 The male terminal 50 is formed by bending a metal plate having excellent conductivity, and has a flat tab portion 51 at the front as shown in FIG.
The female terminal 10 is formed by bending a metal plate having excellent conductivity. As shown in FIG. 5, the connection terminal 11 into which the tab portion 51 of the male terminal 50 is inserted from the front is connected. An electric wire crimping portion 12 formed continuously from the rear of the tube portion 11 is provided.
The wire crimping portion 12 is configured such that a wire barrel portion 13 that is crimped to the core wire W1 exposed at the end of the wire W and an insulation barrel portion 14 that is crimped to the insulating coating W2 are connected in the front-rear direction.

接続筒部１１は、図１および図２に示すように、幅方向に扁平な角筒状に折り曲げられて形成されており、接続筒部１１の天井板１１Ｂには、下方に突出する挟持部１１Ｃが設けられている。また、接続筒部１１は、図５乃至図１２に示すように、前後方向に開口しており、接続筒部１１の前端開口における下縁には、接続筒部１１の底板１１Ａから接続筒部１１内に向かって折り返された第一弾性片１５が設けられている。 As shown in FIGS. 1 and 2, the connecting tube portion 11 is formed by being bent into a flat rectangular tube shape in the width direction, and is sandwiched between the ceiling plate 11 B of the connecting tube portion 11 and protruding downward. 11C is provided. Further, as shown in FIGS. 5 to 12, the connecting cylinder part 11 is open in the front-rear direction, and the connecting cylinder part is connected to the lower edge of the front end opening of the connecting cylinder part 11 from the bottom plate 11 A of the connecting cylinder part 11. A first elastic piece 15 is provided that is folded back toward the inside.

第一弾性片１５は、図５、図７、図９および図１１に示すように、後方に向かうほど斜め上方に向かって延出された形態とされており、タブ部５１の挿入方向と交差する方向である上下方向に弾性変位可能とされている。詳しくは、図３に示すように、第一弾性片１５は、第一弾性片１５の基端部を支点として第一弾性片１５の後端部が円弧の軌跡を描くように弾性変位する。また、第一弾性片１５は、接続筒部１１の前端開口における下縁から斜め後方に向かって僅かに延びる幅広部１６と、幅広部１６の後端縁から接続筒部１１の後端部まで斜め後方に延出された幅狭部１７とを備えて構成されている。 As shown in FIGS. 5, 7, 9, and 11, the first elastic piece 15 is configured to extend obliquely upward toward the rear and intersects with the insertion direction of the tab portion 51. It is possible to elastically displace in the up-down direction, which is the direction of movement. Specifically, as shown in FIG. 3, the first elastic piece 15 is elastically displaced so that the rear end portion of the first elastic piece 15 draws a circular arc locus with the base end portion of the first elastic piece 15 as a fulcrum. The first elastic piece 15 includes a wide portion 16 slightly extending obliquely rearward from the lower edge of the front end opening of the connection tube portion 11, and from the rear end edge of the wide portion 16 to the rear end portion of the connection tube portion 11. And a narrow portion 17 extending obliquely rearward.

幅広部１６は、接続筒部１１の底板１１Ａにおける全幅に亘って設けられており、幅広部１６の後端縁における幅方向略中央部に幅狭部１７が設けられている。幅狭部１７は、幅広部１６と面一状に連なった形態とされており、図１および図４に示すように、幅狭部１７の幅寸法は、幅広部１６の１／３強の幅寸法に設定されている。 The wide portion 16 is provided over the entire width of the bottom plate 11 A of the connecting cylinder portion 11, and the narrow portion 17 is provided at the substantially central portion in the width direction at the rear end edge of the wide portion 16. The narrow portion 17 is configured to be flush with the wide portion 16. As shown in FIGS. 1 and 4, the width of the narrow portion 17 is slightly more than 1/3 that of the wide portion 16. The width dimension is set.

幅狭部１７の後端部は、図１１および図１２に示すように、接続筒部１１内に前方から挿入される雄端子５０のタブ部５１と電気的に接続される第一接点部１８とされており、第一接点部１８は、接続筒部１１の前端開口から挿入される雄端子５０のタブ部５１を、接続筒部１１における天井板１１Ｂの挟持部１１Ｃと共に弾性的に挟持するようになっている。詳細には、接続筒部１１の前端開口からタブ部５１が挿入されると、図７および図８に示すように、タブ部５１の先端部が第一弾性片１５の前後方向略中央部(幅狭部１７の前寄りの位置）に当接する。そして、このままさらにタブ部５１が挿入されると、図９および図１０に示すように、タブ部５１の先端部が第一弾性片１５の前後方向略中央部よりもやや後方（幅狭部１７の前後方向略中央部）を上方から押圧し、第一弾性片１５が下方に向かって弾性変位する。さらに、タブ部５１を接続筒部１１内に挿入し、タブ部５１が正規の位置まで挿入されると、図１１および図１２を示すように、第一弾性片１５が正規の位置まで弾性変位して第一弾性片１５の復元力によってタブ部５１の前端部が挟持部１１Ｃと第一接点部１８とによって上下方向から弾性的に挟持される。これにより、タブ部５１と第一接点部１８とが電気的に接続される。 As shown in FIGS. 11 and 12, the rear end portion of the narrow portion 17 is electrically connected to the tab portion 51 of the male terminal 50 inserted from the front into the connecting tube portion 11. The first contact portion 18 elastically clamps the tab portion 51 of the male terminal 50 inserted from the front end opening of the connecting tube portion 11 together with the holding portion 11C of the ceiling plate 11B in the connecting tube portion 11. It is like that. Specifically, when the tab portion 51 is inserted from the front end opening of the connecting tube portion 11, as shown in FIGS. 7 and 8, the front end portion of the tab portion 51 is approximately the center portion in the front-rear direction of the first elastic piece 15 ( It abuts on the front side of the narrow portion 17). Then, when the tab portion 51 is further inserted as it is, as shown in FIGS. 9 and 10, the front end portion of the tab portion 51 is slightly rearward from the substantially central portion in the front-rear direction of the first elastic piece 15 (the narrow portion 17). Is pressed from above, and the first elastic piece 15 is elastically displaced downward. Further, when the tab portion 51 is inserted into the connecting tube portion 11 and the tab portion 51 is inserted to the regular position, the first elastic piece 15 is elastically displaced to the regular position as shown in FIGS. 11 and 12. Then, the front end portion of the tab portion 51 is elastically clamped from above and below by the clamping portion 11C and the first contact portion 18 by the restoring force of the first elastic piece 15. Thereby, the tab part 51 and the 1st contact part 18 are electrically connected.

さて、第一弾性片１５の後端縁には、図６、図８、図１０および図１２に示すように、タブ部５１の挿入方向と交差する方向である上下方向に弾性変位可能な第二弾性片１９が連なって設けられている。第二弾性片１９は、第一弾性片１５と第二弾性片１９とが連結された部分を支点に上下方向に弾性変位可能とされている。また、第二弾性片１９は、第一弾性片１５の後端縁から前方に向かって折り返されて接続筒部１１の底板１１Ａと接触する位置まで斜め前に延出された基部２０と、基部２０の前端部において幅方向両側縁から幅方向両側に突出し上方に向かって延出された一対の接触部２１と、を備えて構成されている。 As shown in FIGS. 6, 8, 10, and 12, the first elastic piece 15 has a rear end edge that is elastically displaceable in the vertical direction, which is a direction intersecting the insertion direction of the tab portion 51. Two elastic pieces 19 are provided continuously. The second elastic piece 19 is elastically displaceable in the vertical direction with a portion where the first elastic piece 15 and the second elastic piece 19 are connected as a fulcrum. Further, the second elastic piece 19 is folded back toward the front from the rear end edge of the first elastic piece 15 and extends obliquely forward to a position where the second elastic piece 19 comes into contact with the bottom plate 11A of the connecting cylinder portion 11, and a base portion And a pair of contact portions 21 projecting from both side edges in the width direction and extending upward at the front end portions of the width direction.

一対の接触部は、図１に示すように、第一弾性片１５の前後方向略中央部における幅方向両側の領域に配されており、幅狭部１７と接触部２１との間には金属板材の板厚寸法よりも幅狭なクリアランスＣＬが設定されている。
また、一対の接触部は、接続筒部１１を曲げ加工する前の展開状態では、図４に示すように、基部２０の前端部における幅方向両側縁から互いに同じ長さ寸法分だけ幅方向両側に突出した後、前方に向かって延出された形態をなしている。そして、一対の接触部２１における前端部の間の距離Ｌ１が雌端子１０の母材である金属板材の二枚分の板厚寸法と幅狭部１７の幅寸法Ｌ２とを合わせた寸法よりも小さく、かつ幅狭部１７の幅寸法Ｌ２よりも大きくなるように設定されている。これにより、曲げ加工後に幅狭部１７と接触部２１との間に金属板材の板厚寸法よりも幅狭なクリアランスＣＬが設定されるようになっている。 As shown in FIG. 1, the pair of contact portions are arranged in regions on both sides in the width direction at the substantially central portion in the front-rear direction of the first elastic piece 15, and a metal is interposed between the narrow portion 17 and the contact portion 21. A clearance CL narrower than the plate thickness dimension of the plate material is set.
Further, as shown in FIG. 4, the pair of contact portions are arranged on both sides in the width direction from the both side edges in the width direction at the front end portion of the base portion 20 in the unfolded state before the connection cylinder portion 11 is bent. After projecting to the front, it has a form extending forward. The distance L1 between the front end portions of the pair of contact portions 21 is greater than the dimension obtained by combining the plate thickness dimension of the two metal plate members that are the base material of the female terminal 10 and the width dimension L2 of the narrow portion 17. It is set to be smaller and larger than the width dimension L2 of the narrow portion 17. As a result, a clearance CL narrower than the plate thickness dimension of the metal plate material is set between the narrow portion 17 and the contact portion 21 after bending.

また、各接触部２１の先端部は、図６、図８、図１０および図１２に示すように、丸みを帯びるようにして下方に屈曲されており、屈曲させた部分の上端部は雄端子５０のタブ部５１と電気的に接続される第二接点部２２とされている。第二接点部２２は、タブ部５１が第一弾性片１５を押圧する位置(第一弾性片１５の前後方向略中央部よりもやや後方の位置）よりも前側に位置しており、第一弾性片１５および第二弾性片１９が自然状態にあるときには、図６に示すように、第一弾性片１５の幅狭部１７の上面１７Ａとほぼ同じ高さ位置に設定されている。
そして、第一弾性片１５がタブ部５１によって押圧されて下方に向かって弾性変位すると、第一弾性片１５の後端部が円弧を描くように変位することで、図９および図１０に示すように、基部２０の前端部２０Ａおよび接触部２１の下端部２１Ａが接続筒部１１の底板１１Ａに押しつけられ、基部２０の前端部２０Ａおよび接触部２１の下端部２１Ａを支点に接触部２１の第二接点部２２が上方に向かって徐々に押し上げられることで、タブ部５１の下面５１Ａに第二接点部２２が弾性的に押し当てられる。 As shown in FIGS. 6, 8, 10, and 12, the tip of each contact portion 21 is bent downward so as to be rounded, and the upper end of the bent portion is a male terminal. The second contact portion 22 is electrically connected to the 50 tab portions 51. The second contact portion 22 is located on the front side of the position where the tab portion 51 presses the first elastic piece 15 (a position slightly rearward of the substantially elastic central portion of the first elastic piece 15). When the elastic piece 15 and the second elastic piece 19 are in a natural state, they are set at substantially the same height as the upper surface 17A of the narrow portion 17 of the first elastic piece 15 as shown in FIG.
And when the 1st elastic piece 15 is pressed by the tab part 51 and elastically moves downward, the rear-end part of the 1st elastic piece 15 will be displaced so that a circular arc may be drawn, and it shows in FIG. 9 and FIG. As described above, the front end portion 20A of the base portion 20 and the lower end portion 21A of the contact portion 21 are pressed against the bottom plate 11A of the connecting tube portion 11, and the front end portion 20A of the base portion 20 and the lower end portion 21A of the contact portion 21 are used as fulcrums. As the second contact portion 22 is gradually pushed upward, the second contact portion 22 is elastically pressed against the lower surface 51 A of the tab portion 51.

そして、第一弾性片１５が正規の位置まで弾性変位すると、図１２に示すように、第二接点部２２がタブ部５１の下面５１Ａに下方から所定の接圧で押し当てられ、タブ部５１の前後方向略中央部が接続筒部１１の挟持部１１Ｃと第二接点部２２とによって上下方向から弾性的に挟持される。
すなわち、接続筒部１１に対してタブ部５１が正規の位置まで挿入されると、タブ部５１の先端部と第一接点部１８とが電気的に接続され、タブ部５１の前後方向略中央部と第二接点部２２とが電気的に接続される。これにより、雌端子１０と雄端子５０とがしっかりと電気的に接続され、接続安定性が確保される。 When the first elastic piece 15 is elastically displaced to the normal position, the second contact portion 22 is pressed against the lower surface 51A of the tab portion 51 from below with a predetermined contact pressure, as shown in FIG. Is substantially clamped from above and below by the clamping part 11C and the second contact part 22 of the connecting cylinder part 11.
That is, when the tab portion 51 is inserted to the regular position with respect to the connecting cylinder portion 11, the tip end portion of the tab portion 51 and the first contact portion 18 are electrically connected, and the tab portion 51 is approximately centered in the front-rear direction. And the second contact portion 22 are electrically connected. Thereby, the female terminal 10 and the male terminal 50 are firmly electrically connected, and connection stability is ensured.

本実施形態の雌端子１０は、以上のような構成であって、続いて雌端子１０と雄端子５０とを接続する際の作用効果を説明する。
まず、図５または図６に示すように、雄端子５０と雌端子１０とを向かい合わせに配置し、接続筒部１１の前端開口から雄端子５０のタブ部５１を挿入する。 The female terminal 10 of the present embodiment has the above-described configuration, and the operation and effect when the female terminal 10 and the male terminal 50 are connected will be described.
First, as shown in FIG. 5 or FIG. 6, the male terminal 50 and the female terminal 10 are arranged facing each other, and the tab portion 51 of the male terminal 50 is inserted from the front end opening of the connecting tube portion 11.

接続筒部１１に対してタブ部５１が半分程度挿入されると、図７に示すように、タブ部５１の先端部が第一弾性片１５の前後方向略中央部(幅狭部１７の前寄りの位置）に当接し、第二弾性片１９の第二接点部２２が、図８に示すように、タブ部５１の下面５１Ａにタブ部５１を下方から押圧しない状態で接触する。 When about half of the tab portion 51 is inserted into the connecting cylinder portion 11, as shown in FIG. 7, the front end portion of the tab portion 51 is substantially at the center in the front-rear direction of the first elastic piece 15 (in front of the narrow portion 17. The second contact portion 22 of the second elastic piece 19 contacts the lower surface 51A of the tab portion 51 without pressing the tab portion 51 from below, as shown in FIG.

この状態から、さらに接続筒部１１に対してタブ部５１を挿入すると、図９に示すように、タブ部５１によって幅狭部１７の前後方向略中央部が上方から押圧され、第一弾性片１５が下方に向かって弾性変位することより、第一弾性片１５の後端部が円弧を描くように変位する。すると、図１０に示すように、第二弾性片１９の基部２０の前端部２０Ａおよび接触部２１の下端部２１Ａが接続筒部１１の底板１１Ａに押しつけられて基部２０の前端部２０Ａおよび接触部２１の下端部２１Ａを支点に接触部２１の第二接点部２２が上方に向かって徐々に押し上げられる。そして、第二接点部２２が幅狭部１７の上面１７Ａの位置よりも上方に突出し、一対の第二接点部２２がタブ部５１の下面５１Ａに下方から徐々に押し当てられる。 When the tab portion 51 is further inserted into the connecting cylinder portion 11 from this state, as shown in FIG. 9, the tab portion 51 presses the substantially central portion in the front-rear direction of the narrow portion 17 from above, and the first elastic piece Since the elastic displacement 15 is downward, the rear end portion of the first elastic piece 15 is displaced so as to draw an arc. Then, as shown in FIG. 10, the front end portion 20A of the base portion 20 of the second elastic piece 19 and the lower end portion 21A of the contact portion 21 are pressed against the bottom plate 11A of the connecting tube portion 11, and the front end portion 20A and the contact portion of the base portion 20 are pressed. The second contact portion 22 of the contact portion 21 is gradually pushed upward with the lower end portion 21A of the contact 21 as a fulcrum. Then, the second contact portion 22 protrudes upward from the position of the upper surface 17A of the narrow portion 17, and the pair of second contact portions 22 are gradually pressed against the lower surface 51A of the tab portion 51 from below.

最終的に、接続筒部１１に対してタブ部５１が正規の位置まで挿入されると、図１１に示すように、第一弾性片１５が正規の位置まで弾性変位し、タブ部５１の前端部が接続筒部１１の挟持部１１Ｃと第一接点部１８とによって上下方向から弾性的に挟持される。また、第一弾性片１５が正規の位置まで弾性変位することにより、図１２に示すように、第二接点部２２がタブ部５１の下面５１Ａに所定の接圧で押し当てられ、タブ部５１の前後方向略中央部が接続筒部１１の挟持部１１Ｃと第二接点部２２とによって上下方向から弾性的に挟持される。これにより、雌端子１０と雄端子５０とが電気的に接続される。 Finally, when the tab portion 51 is inserted to the regular position with respect to the connecting tube portion 11, the first elastic piece 15 is elastically displaced to the regular position as shown in FIG. The part is elastically clamped from above and below by the clamping part 11C of the connecting cylinder part 11 and the first contact part 18. Further, when the first elastic piece 15 is elastically displaced to the normal position, the second contact portion 22 is pressed against the lower surface 51A of the tab portion 51 with a predetermined contact pressure as shown in FIG. Is substantially clamped from above and below by the clamping part 11C and the second contact part 22 of the connecting cylinder part 11. Thereby, the female terminal 10 and the male terminal 50 are electrically connected.

以上のように、本実施形態の雌端子１０によると、タブ部５１の先端部が第一弾性片１５に当接して上方から押圧した後、タブ部５１の下面５１Ａに対して第二接点部２２が弾性的に押し当てられる。すなわち、ただ単にタブ部５１に対する弾性片の接触荷重を高くして接続安定性を確保する場合に比べて、タブ部５１の挿入抵抗を低減させつつ、タブ部５１に対して第一接点部１８と第二接点部２２とをしっかりと電気的に接続させて接続安定性を確保することができる。 As described above, according to the female terminal 10 of the present embodiment, the second contact portion with respect to the lower surface 51 A of the tab portion 51 after the distal end portion of the tab portion 51 is in contact with the first elastic piece 15 and pressed from above. 22 is elastically pressed. That is, compared with the case where the contact load of the elastic piece with respect to the tab portion 51 is simply increased to ensure connection stability, the insertion resistance of the tab portion 51 is reduced and the first contact portion 18 with respect to the tab portion 51 is reduced. And the second contact portion 22 can be firmly electrically connected to ensure connection stability.

また、タブ部５１の挿入初期にタブ部５１の先端部に第一弾性片１５が接触し、タブ部５１の挿入途中から第一弾性片１５の幅方向両側に配された第二接点部２２がタブ部５１の下面５１Ａに押し当てられる。すなわち、第二弾性片１９よりも挿入抵抗が高くなる第一弾性片１５が少ないから、例えば、第二弾性片よりも第一弾性片が多く設けられている場合に比べて、タブ部５１の挿入初期の挿入抵抗をさらに低減させることができる。
さらに、タブ部５１の先端部によって弾性片を複数回に亘って押圧する構成の場合、タブ部５１の先端部が弾性片を押圧する度に挿入抵抗が大きくなり、挿入フィーリングが悪化してしまう。ところが、本実施形態によると、タブ部５１の先端部が第一弾性片１５を押圧した後に、タブ部５１の下面５１Ａに対して第二接点部２２が徐々に押し当てられるから、タブ部５１の挿入フィールリングを滑らかにすることができる。 In addition, the first elastic piece 15 comes into contact with the distal end portion of the tab portion 51 at the initial stage of insertion of the tab portion 51, and the second contact portion 22 disposed on both sides in the width direction of the first elastic piece 15 from the middle of insertion of the tab portion 51. Is pressed against the lower surface 51 A of the tab portion 51. That is, since there are few first elastic pieces 15 in which the insertion resistance is higher than that of the second elastic piece 19, for example, compared to the case where more first elastic pieces are provided than the second elastic piece, The insertion resistance at the initial stage of insertion can be further reduced.
Furthermore, in the case of a configuration in which the elastic piece is pressed a plurality of times by the tip portion of the tab portion 51, the insertion resistance increases each time the tip portion of the tab portion 51 presses the elastic piece, and the insertion feeling deteriorates. End up. However, according to the present embodiment, the second contact portion 22 is gradually pressed against the lower surface 51 A of the tab portion 51 after the distal end portion of the tab portion 51 presses the first elastic piece 15. The insertion feel ring can be smooth.

また、本実施形態によると、第一弾性片１５の後端縁に第二弾性片１９が連なって設けられ、第一弾性片１５が弾性変位することに伴って第二弾性片１９がタブ部５１に押しつけられる構成となっているから、例えば、接続筒部内において、第一弾性片と第二弾性片とを個別に設け、第二弾性片が第一弾性片に押圧されることにより、第一弾性片に連動して第二接点部がタブ部に接触するような複雑な構造に比べて、接続筒部１１の構成を簡素化することができる。
また、第二弾性片１９は、第一弾性片１５の後端縁から前方に向かって折り返され、第一弾性片１５の幅方向両側の領域に一対の接触部２１が幅方向に並んで配されているから、例えば、接続筒部の後端部から前方に向かって延びる第一弾性片の前端縁に、第二弾性片が前方に向かってさらに延出されている構成に比べて、接続筒部１１の前後方向の長さ寸法を短くすることができる。 Further, according to the present embodiment, the second elastic piece 19 is provided continuously to the rear end edge of the first elastic piece 15, and the second elastic piece 19 is moved to the tab portion as the first elastic piece 15 is elastically displaced. 51, the first elastic piece and the second elastic piece are separately provided in the connecting cylinder portion, and the second elastic piece is pressed against the first elastic piece, for example. Compared to a complicated structure in which the second contact portion contacts the tab portion in conjunction with one elastic piece, the configuration of the connecting tube portion 11 can be simplified.
The second elastic piece 19 is folded forward from the rear end edge of the first elastic piece 15, and a pair of contact portions 21 are arranged side by side in the width direction in regions on both sides in the width direction of the first elastic piece 15. Therefore, for example, compared to the configuration in which the second elastic piece is further extended toward the front at the front end edge of the first elastic piece extending toward the front from the rear end portion of the connecting tube portion, The length dimension of the cylinder part 11 in the front-rear direction can be shortened.

ところで、第一弾性片と第二弾性片とを幅方向に並べて形成する場合、一般に金属板材を打ち抜き加工することにより第一弾性片と第二弾性片との間にスリットを形成し、第一弾性片と第二弾性片とを幅方向に並べる方法が考えられるが、このような場合には、打ち抜き加工時の金型の耐久性を確保するため、スリットの幅寸法を金属板材の板厚寸法よりも大きくすることが望ましい。しかしながら、スリットを板厚寸法よりも大きく設定し複数の弾性片を幅方向にすると、スリットが幅方向に大きくなった分だけ接続筒部の幅寸法が大きくなってしまい、雌端子が幅方向に大型化してしまう。 By the way, when the first elastic piece and the second elastic piece are formed side by side in the width direction, a slit is generally formed between the first elastic piece and the second elastic piece by punching a metal plate material, A method of arranging the elastic piece and the second elastic piece in the width direction is conceivable, but in such a case, in order to ensure the durability of the mold during punching, the width of the slit is set to the thickness of the metal plate. It is desirable to make it larger than the dimension. However, if the slit is set larger than the plate thickness dimension and the plurality of elastic pieces are in the width direction, the width dimension of the connecting tube portion is increased by the amount of the slit in the width direction, and the female terminal is in the width direction. It will increase in size.

ところが、本実施形態によると、第一弾性片１５の後端縁から第二弾性片１９を前方に向かって折り返して、第一弾性片１５と第二弾性片１９とを幅方向に並べ、第一弾性片１５の幅狭部１７と第二弾性片１９の接触部２１との幅方向の間隔を金属板材の板厚寸法よりも小さくしている。これにより、単純に金型で打ち抜いてスリットを形成し、第一弾性片と第二弾性片とを幅方向に並べる場合に比べて、接続筒部１１を幅方向に小型化することができる。 However, according to the present embodiment, the second elastic piece 19 is folded forward from the rear end edge of the first elastic piece 15, and the first elastic piece 15 and the second elastic piece 19 are arranged in the width direction. The interval in the width direction between the narrow portion 17 of the one elastic piece 15 and the contact portion 21 of the second elastic piece 19 is made smaller than the plate thickness dimension of the metal plate material. Thereby, compared with the case where the first elastic piece and the second elastic piece are arranged in the width direction by simply punching with a mold, the connecting tube portion 11 can be downsized in the width direction.

また、例えば、接続筒部内において、幅方向の一側に一対の第二弾性片が偏って設けられている場合、第一弾性片が押圧された力を第二弾性片に伝える際に偏りが生じ、タブ部に対する第二接点部の接圧にばらつきが生じる虞がある。
ところが、本実施形態によると、第二弾性片１９が第一弾性片１５の幅方向両側の領域にそれぞれ配されているから、第一弾性片１５から第二弾性片１９に伝わる力の偏りを低減させることができる。これにより、幅方向の一側に第二弾性片が偏って設けられている場合に比べて、タブ部５１への第二接点部２２の接圧の偏りを低減させることができる。 In addition, for example, in the connection tube portion, when the pair of second elastic pieces are biased on one side in the width direction, the bias is transmitted when transmitting the force pressed by the first elastic piece to the second elastic piece. This may cause variation in the contact pressure of the second contact portion with respect to the tab portion.
However, according to the present embodiment, since the second elastic pieces 19 are arranged in the regions on both sides in the width direction of the first elastic pieces 15, the bias of the force transmitted from the first elastic pieces 15 to the second elastic pieces 19 is reduced. Can be reduced. Thereby, compared with the case where the 2nd elastic piece is biased and provided in the one side of the width direction, the bias of the contact pressure of the 2nd contact part 22 to the tab part 51 can be reduced.

＜実施形態２＞
次に、本発明の実施形態２について図１３乃至図１５を参照して説明する。
実施形態２の雌端子１１０は、実施形態１における第一弾性片１５および第二弾性片１９の形状を変更したものであって、実施形態１と共通する構成、作用、および効果については重複するため、その説明を省略する。また、実施形態１と同じ構成については同一の符号を用いるものとする。 <Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
The female terminal 110 of the second embodiment is obtained by changing the shapes of the first elastic piece 15 and the second elastic piece 19 in the first embodiment, and the configuration, operation, and effect common to the first embodiment are overlapped. Therefore, the description is omitted. The same reference numerals are used for the same configurations as those in the first embodiment.

実施形態２の第一弾性片１１５は、接続筒部１１１の前端開口における下縁から斜め後方に向かって僅かに延びる幅広部１１６と、幅広部１１６の後端縁における幅方向両側から接続筒部１１１の後端部まで斜め後方に延出された一対の幅狭部１１７とを備えて構成されている。幅狭部１１７は、幅広部１１６と面一状に連なった形態とされており、図１３および図１５に示すように、幅狭部１１７の幅寸法は、幅広部１１６の１／３弱の幅寸法に設定されている。
各幅狭部１１７の後端部は接続筒部１１１内に前方から挿入される雄端子５０のタブ部５１と電気的に接続される第一接点部１８とされている。そして、接続筒部１１１の前端開口からタブ部５１が挿入されると、タブ部５１の先端部が一対の第一弾性片１１５の前後方向略中央部(幅狭部１１７の前寄りの位置）に当接し、第一弾性片１１５の前後方向略中央部よりもやや後方(幅狭部１１７の前後方向略中央部)が上方から押圧されることで、それぞれの第一弾性片１１５が下方に向かって弾性変位する。
そして、タブ部５１が正規の位置まで挿入されると、第一弾性片１１５が正規の位置まで弾性変位し、第一弾性片１１５の復元力によってタブ部５１の前端部を天井板１１Ｂの挟持部１１Ｃと一対の第一接点部１８とによって上下方向から弾性的に挟持する。 The first elastic piece 115 according to the second embodiment includes a wide portion 116 slightly extending obliquely rearward from a lower edge in the front end opening of the connection tube portion 111 and a connection tube portion from both sides in the width direction at the rear end edge of the wide portion 116. 111 and a pair of narrow portions 117 extending obliquely rearward to the rear end portion. The narrow portion 117 is connected to the wide portion 116 so as to be flush with the wide portion 116. As shown in FIGS. 13 and 15, the width dimension of the narrow portion 117 is slightly less than 1/3 of the wide portion 116. The width dimension is set.
The rear end portion of each narrow portion 117 is a first contact portion 18 that is electrically connected to the tab portion 51 of the male terminal 50 that is inserted into the connection tube portion 111 from the front. And when the tab part 51 is inserted from the front-end opening of the connection cylinder part 111, the front-end | tip part of the tab part 51 is the front-back direction approximate center part of a pair of 1st elastic pieces 115 (position near the front of the narrow part 117). The first elastic piece 115 is pressed downward from the upper side of the first elastic piece 115 from the upper side (substantially the central part of the narrow portion 117). It is elastically displaced toward.
When the tab portion 51 is inserted to the normal position, the first elastic piece 115 is elastically displaced to the normal position, and the front end portion of the tab portion 51 is held between the ceiling plate 11B by the restoring force of the first elastic piece 115. The portion 11C and the pair of first contact portions 18 are elastically sandwiched from above and below.

実施形態２の第二弾性片１１９は、図１４に示すように、第一弾性片１１５の後端縁から前方に向かって折り返されて形成されている。また、第二弾性片１１９は、一対の第一弾性片１１５の後端縁から前方に向かって折り返されて接続筒部１１の底板１１Ａと接触する位置まで斜め前に延出された一対の基部１２０と、一対の基部１２０の前端部を幅方向に連結し、この連結した部分から上方に向かって延出された接触部１２１とを備えて構成されている。
接触部１２１は、接続筒部１１１を曲げ加工する前の展開状態では、図１５に示すように、一対の基部１２０の前端部を幅方向に連結して、この連結した部分から前方に向かって延出された形態をなしている。また、接触部１２１の前端部の幅寸法Ｌ１１は、一対の幅狭部１１７の間の距離Ｌ１２から雌端子１０の母材である金属板材の二枚分の板厚寸法を引いた寸法よりも大きく、かつ一対の幅狭部１１７の間の距離Ｌ１２よりも小さくなるように設定されている。 As shown in FIG. 14, the second elastic piece 119 of the second embodiment is formed by being folded back from the rear end edge of the first elastic piece 115. Further, the second elastic piece 119 is folded back toward the front from the rear end edges of the pair of first elastic pieces 115 and extended diagonally forward to a position where the second elastic piece 119 comes into contact with the bottom plate 11A of the connecting cylinder portion 11. 120 and a front end portion of the pair of base portions 120 are connected in the width direction, and a contact portion 121 extending upward from the connected portion is configured.
As shown in FIG. 15, the contact portion 121 is connected to the front end portions of the pair of base portions 120 in the width direction in the expanded state before bending the connecting cylinder portion 111, and forwards from the connected portion. It has an extended form. Further, the width dimension L11 of the front end portion of the contact part 121 is smaller than the dimension obtained by subtracting the plate thickness dimension of the two metal plate members as the base material of the female terminal 10 from the distance L12 between the pair of narrow portions 117. The distance is set to be larger and smaller than the distance L12 between the pair of narrow portions 117.

そして、曲げ加工が施され接続筒部１１１が形成されると、接触部１２１は、図１３に示すように、一対の第一弾性片１１５の間に配され、一対の第一弾性片１１５と共に幅方向に並んだ状態となる。言い換えると、第二弾性片１１９における接触部１２１の幅方向両側の領域に第一弾性片１１５が配された状態となり、一対の幅狭部１１７と接触部１２１との間に金属板材の板厚寸法ｔよりも幅狭なクリアランスＣＬが設定される。これにより、単純に金型で打ち抜いてスリットを形成し、第一弾性片と第二弾性片とを幅方向に並べる場合に比べて、接続筒部１１１を幅方向に小型化することができる。また、接触部１２１の先端部は、実施形態１の接触部２１と同様に、丸みを帯びるようにして下方に屈曲されており、屈曲させた部分の上端部はタブ部５１と電気的に接続される第二接点部１２２とされている。 When the connecting cylinder portion 111 is formed by bending, the contact portion 121 is arranged between the pair of first elastic pieces 115 as shown in FIG. It will be in the state arranged in the width direction. In other words, the first elastic piece 115 is arranged in the region on both sides in the width direction of the contact portion 121 in the second elastic piece 119, and the plate thickness of the metal plate material is between the pair of narrow portions 117 and the contact portion 121. A clearance CL narrower than the dimension t is set. Thereby, the connecting cylinder part 111 can be reduced in the width direction as compared with the case where the slits are simply formed by punching with a mold, and the first elastic piece and the second elastic piece are arranged in the width direction. Further, the tip of the contact portion 121 is bent downward so as to be round like the contact portion 21 of the first embodiment, and the upper end portion of the bent portion is electrically connected to the tab portion 51. The second contact portion 122 is used.

すなわち、本実施形態によると、タブ部５１の挿入初期において、接続筒部１１１内の幅方向両側の位置で一対の幅狭部１１７がタブ部５１と接触し、挿入途中から接続筒部１１１の幅方向中央部において第二弾性片１１９の第二接点部１２２が接触する。つまり、タブ部５１の挿入初期に幅方向中央部を支点に接続筒部１１１が幅方向に回転することを抑制することができるから、タブ部５１が接続筒部１１１に不正な姿勢で挿入されて接続筒部１１１やタブ部５１が損傷することを防ぐことができる。 That is, according to the present embodiment, at the initial insertion of the tab portion 51, the pair of narrow portions 117 come into contact with the tab portion 51 at positions on both sides in the width direction in the connection tube portion 111, and the connection tube portion 111 is inserted from the middle of the insertion. The second contact portion 122 of the second elastic piece 119 contacts at the center in the width direction. That is, since it is possible to prevent the connecting tube portion 111 from rotating in the width direction with the center portion in the width direction as a fulcrum at the initial insertion of the tab portion 51, the tab portion 51 is inserted into the connecting tube portion 111 in an incorrect posture. Thus, it is possible to prevent the connecting tube portion 111 and the tab portion 51 from being damaged.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
（１）上記実施形態では、接続筒部１１，１１１の前端開口縁から後方に延出された第一弾性片１５，１１５の後端縁に第二弾性片１９，１１９を前方に向かって折り返して構成したが、本発明はこのような態様に限定されるものではなく、例えば、接続筒部の後端部から第一弾性片を前方に向かって延出して形成し、第二弾性片を、第一弾性片の前端縁から前方に向かって延出して形成してもよい。
（２）上記実施形態１では、第一弾性片１５の幅方向両側の領域に一対の第二弾性片１９が設けられ、上記実施形態２では、第二弾性片１１９の幅方向両側の領域に一対の第一弾性片１１５が設けられた構成としたが、本発明はこのような態様に限定されるものではなく、例えば、第一弾性片と第二弾性片とが同数に構成されてもよく、第一弾性片１つに対して第二弾性片が３つ以上構成されてもよい。
（３）上記実施形態では、第一弾性片１５，１１５の後端縁に第二弾性片１９，１１９を連ねて形成した構成としたが、本発明はこのような態様に限定されるものではなく、例えば、接続筒部の底板を切り起こすなどして第二弾性片を第一弾性片とは別に形成し、この第二弾性片を第一弾性片によって上方から押圧して第二弾性片をタブ部の下面に接触させる構成にしてもよい。 <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 second elastic pieces 19 and 119 are folded back toward the front end of the first elastic pieces 15 and 115 extending rearward from the front end opening edges of the connecting tube portions 11 and 111. However, the present invention is not limited to such an embodiment. For example, the first elastic piece extends forward from the rear end portion of the connecting tube portion, and the second elastic piece is formed. The first elastic piece may be formed to extend forward from the front end edge.
(2) In the first embodiment, a pair of second elastic pieces 19 are provided in the regions on both sides in the width direction of the first elastic piece 15, and in the second embodiment, in the regions on both sides in the width direction of the second elastic piece 119. The pair of first elastic pieces 115 is provided, but the present invention is not limited to such an embodiment. For example, even if the first elastic pieces and the second elastic pieces are configured in the same number. In addition, three or more second elastic pieces may be configured for one first elastic piece.
(3) In the above embodiment, the second elastic pieces 19 and 119 are connected to the rear end edges of the first elastic pieces 15 and 115. However, the present invention is not limited to such an embodiment. For example, the second elastic piece is formed separately from the first elastic piece by cutting up the bottom plate of the connecting cylinder portion, and the second elastic piece is pressed from above by the first elastic piece. You may make it contact the lower surface of a tab part.

１０：雌端子
１１：接続筒部
１５，１１５：第一弾性片
１９，１１９：第二弾性片
５０：雄端子 10: Female terminal 11: Connection cylinder portion 15, 115: First elastic piece 19, 119: Second elastic piece 50: Male terminal

Claims

A female terminal having a connecting tube portion into which a plate-shaped male terminal is inserted from the front,
A first elastic piece that is provided in the connecting tube portion and is elastically contacted with the same male terminal by being pressed by the male terminal in a direction intersecting the insertion direction of the same male terminal;
The male terminal is arranged in front of the position where the first elastic piece is pressed in the connection tube portion, and the male terminal presses the first elastic piece, and then the same male terminal with respect to the plate surface of the male terminal. The female terminal provided with the 2nd elastic piece pressed in the direction which cross | intersects the insertion direction of a terminal.

The second elastic piece is provided continuously to the first elastic piece,
2. The female terminal according to claim 1, wherein the first elastic piece is pressed and elastically displaced, whereby the second elastic piece is elastically displaced and pressed against the male terminal in conjunction with the first elastic piece.

The first elastic piece is configured to extend rearward from the front end portion of the connection tube portion,
3. The female terminal according to claim 2, wherein the second elastic piece is folded forward from a rear end portion of the first elastic piece and arranged side by side in the width direction with the first elastic piece.

The female terminal according to claim 2 or 3, wherein the first elastic piece is provided in a smaller number than the second elastic piece.

The second elastic piece is disposed in the center portion in the width direction of the connection tube portion,
4. The female terminal according to claim 2, wherein the first elastic piece is disposed in each of regions on both sides in the width direction of the second elastic piece. 5.

The first elastic piece is disposed in the center portion in the width direction of the connection tube portion,
The female terminal according to any one of claims 2 to 4, wherein the second elastic piece is disposed in each of regions on both sides in the width direction of the first elastic piece.