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JP5822145B2 - Terminal bracket connection structure - Google Patents
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JP5822145B2 - Terminal bracket connection structure - Google Patents

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JP5822145B2
JP5822145B2 JP2012224487A JP2012224487A JP5822145B2 JP 5822145 B2 JP5822145 B2 JP 5822145B2 JP 2012224487 A JP2012224487 A JP 2012224487A JP 2012224487 A JP2012224487 A JP 2012224487A JP 5822145 B2 JP5822145 B2 JP 5822145B2
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width direction
tab
contact
top plate
plate portion
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JP2014078355A (en
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西出 悟
悟 西出
孝洋 菊池
孝洋 菊池
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Sumitomo Wiring Systems Ltd
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Description

本発明は、端子金具の接続構造に関するものである。   The present invention relates to a connection structure for terminal fittings.

特許文献1には、先端に細長いタブが形成された雄端子金具と、先端に角筒部が形成された雌端子金具とを接続する構造が開示されている。角筒部は、基板部と、基板部の左右両側縁から直角に立ち上がる一対の側板部と、側板部の立ち上がり端縁から基板部と平行に片持ち状に延出する天板部とを備えて構成されている。角筒部の内部には、天板部と対向する弾性接触片が設けられ、天板部には、弾性接触片側へ突出する叩き出し部が形成されている。角筒部内に挿入されたタブは、叩き出し部と弾性接触片との間で弾性的に挟み付けられる。   Patent Document 1 discloses a structure in which a male terminal fitting having an elongated tab formed at the tip and a female terminal fitting having a square tube portion formed at the tip are connected. The square tube portion includes a substrate portion, a pair of side plate portions that rise at right angles from the left and right side edges of the substrate portion, and a top plate portion that extends in a cantilevered manner from the rising edge of the side plate portion in parallel with the substrate portion. Configured. An elastic contact piece facing the top plate portion is provided inside the rectangular tube portion, and a punching portion that protrudes toward the elastic contact piece side is formed on the top plate portion. The tab inserted into the rectangular tube portion is elastically sandwiched between the hitting portion and the elastic contact piece.

特開2004−039559号公報JP 2004-039559 A

特許文献1に記載されたものでは、弾性接触片の弾力に起因してタブ側から天板部側に押圧力が作用する。この押圧力を受けた天板部には、側板部に繋がる基端縁部を支点として弾性接触片から遠ざかる方向、つまり角筒部を開き変形させる方向のモーメント力が生じる。タブ側からの押圧力は、タブとの接触部である叩き出し部に作用するのであるが、叩き出し部は、天板部の幅方向における中央位置、つまり、開き変形の支点となる位置から比較的離れた位置に配置されている。そのため、押圧力によって天板部に生じる開き方向のモーメント力が、比較的大きい。
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、タブ側からの弾性押圧力によって天板部に生じる開き方向のモーメント力を低減することを目的とする。
In the device described in Patent Document 1, a pressing force acts from the tab side to the top plate side due to the elasticity of the elastic contact piece. A moment force in the direction of moving away from the elastic contact piece with the base end edge connected to the side plate as a fulcrum, that is, the direction of opening and deforming the square tube, is generated in the top plate that has received this pressing force. The pressing force from the tab side acts on the hitting part that is the contact part with the tab, but the hitting part is from the center position in the width direction of the top plate part, that is, from the position that becomes the fulcrum of opening deformation. It is arranged at a relatively distant position. Therefore, the moment force in the opening direction generated in the top plate portion by the pressing force is relatively large.
The present invention has been completed based on the above circumstances, and an object thereof is to reduce the moment force in the opening direction generated in the top plate portion by the elastic pressing force from the tab side.

上記の目的を達成するための手段として、本発明は、
先端に細長いタブが形成された雄端子金具と、
先端に角筒部が形成された雌端子金具と、
前記角筒部を構成する基板部と、
前記基板部の左右両側縁から略直角に立ち上がることで前記角筒部を構成する一対の側板部と、
前記側板部の立ち上がり端縁から前記基板部と略平行に幅方向へ片持ち状に延出することで前記角筒部を構成する天板部と、
前記角筒部の内部に配されて、前記タブを前記天板部との間で弾性的に挟み付ける弾性接触片と、
前記タブに前記天板部と当接し得るように形成され、前記天板部に対する当接位置が、前記角筒部の幅方向中央位置よりも前記側板部に近い位置となるように配された一対の接点部とを備え
前記タブと前記弾性接触片が、幅方向に関して概ね対称な形態であり、
前記タブにおける前記弾性接触片との接触部が、幅方向中央部のみに配されており、
前記タブの上面は、幅方向中央部と幅方向両側縁部が上方へ突出し、幅方向中央部と幅方向両側縁部の間がそれぞれ凹み、幅方向中央部の高さが幅方向両側縁部よりも低い形態であり、幅方向両側縁部が前記一対の接点部となっており、
前記タブの下面は、幅方向中央部と幅方向両側縁部が下方へ突出し、幅方向中央部と幅方向両側縁部の間がそれぞれ凹み、幅方向両側縁部の高さが幅方向中央部よりも高い形態であり、幅方向中央部が前記接触部となっているところに特徴を有する。
As means for achieving the above object, the present invention provides:
A male terminal fitting with an elongated tab formed at the tip;
A female terminal fitting with a square tube formed at the tip;
A substrate portion constituting the rectangular tube portion;
A pair of side plate portions that constitute the rectangular tube portion by standing up substantially at right angles from the left and right side edges of the substrate portion;
A top plate portion that constitutes the rectangular tube portion by extending in a cantilevered manner in the width direction from the rising edge of the side plate portion substantially parallel to the substrate portion,
An elastic contact piece disposed inside the rectangular tube portion and elastically sandwiching the tab with the top plate portion;
The tab is formed so as to be in contact with the top plate portion, and the contact position with respect to the top plate portion is arranged so as to be closer to the side plate portion than the center position in the width direction of the rectangular tube portion. A pair of contact portions ,
The tab and the elastic contact piece are substantially symmetrical with respect to the width direction,
The contact portion with the elastic contact piece in the tab is disposed only in the center in the width direction,
The upper surface of the tab protrudes upward in the width direction center portion and the width direction side edges, and is recessed between the width direction center portion and the width direction side edges, and the height of the width direction center portion is the width direction side edges. Lower side, both side edges in the width direction are the pair of contact parts,
In the lower surface of the tab, the width direction center part and the width direction both side edges protrude downward, the space between the width direction center part and the width direction both side edges is recessed, respectively, and the height of the width direction both side edges is the width direction center part. It has a feature that the shape is higher than that of the contact portion .

この構成によれば、弾性接触片の弾力に起因してタブ側から天板部側に作用する押圧力の押圧位置は、押圧力を受けた天板部が開き変形しようとするときの支点となる側板部に近い位置である。したがって、タブ側からの弾性押圧力によって天板部に生じる開き方向のモーメント力は、小さく抑えられる。
更に、前記タブと前記弾性接触片が、幅方向に関して概ね対称な形態であり、前記タブにおける前記弾性接触片との接触部が、幅方向中央部のみに配されている。
この構成によれば、幅方向におけるタブと弾性接触片との接触領域が比較的狭いので、タブが幅方向に傾いても、タブと弾性接触片との接触形態が安定した状態に保れる。
According to this configuration, the pressing position of the pressing force acting from the tab side to the top plate portion side due to the elasticity of the elastic contact piece is a fulcrum when the top plate portion receiving the pressing force is about to open and deform. It is a position near the side plate part. Therefore, the moment force in the opening direction generated in the top plate portion by the elastic pressing force from the tab side can be suppressed small.
Furthermore, the tab and the elastic contact piece are substantially symmetrical with respect to the width direction, and the contact portion of the tab with the elastic contact piece is disposed only in the center portion in the width direction.
According to this configuration, since the contact area between the tab and the elastic contact piece in the width direction is relatively narrow, the contact form between the tab and the elastic contact piece can be kept stable even when the tab is inclined in the width direction.

参考例1において角筒部にタブを挿入した状態をあらわす雌端子金具の正面図Front view of female terminal fitting showing a state where tabs are inserted into the rectangular tube portion in Reference Example 1. 実施例において角筒部にタブを挿入した状態をあらわす雌端子金具の正面図The front view of the female terminal metal fitting which shows the state which inserted the tab in the square cylinder part in Example 1 参考例において角筒部にタブを挿入した状態をあらわす雌端子金具の正面図Front view of female terminal fitting showing a state where a tab is inserted into a rectangular tube part in Reference Example 2 参考例において角筒部にタブを挿入した状態をあらわす雌端子金具の正面図Front view of female terminal fitting showing a state where tabs are inserted into the rectangular tube portion in Reference Example 3 .

参考例1>
以下、本発明を具体化した参考例1を図1を参照して説明する。本参考例1の雄端子金具10の接続構造は、先端に細長いタブ11が形成された雄端子金具10と、先端に角筒部21が形成された雌端子金具20とを接続するためのものである。
< Reference Example 1>
A reference example 1 embodying the present invention will be described below with reference to FIG. The connection structure of the male terminal fitting 10 of the present reference example is for connecting the male terminal fitting 10 with the elongated tab 11 formed at the tip and the female terminal fitting 20 with the square tube portion 21 formed at the tip. It is.

雄端子金具10は、所定形状に打ち抜いた一定厚さの金属板材(図示省略)に曲げ加工等を施すことにより、全体として前後方向に細長い周知の形状に成形されている。雄端子金具10の前端部には、前方へ片持ち状に細長く突出した形態のタブ11が形成されている。タブ11は、上下方向(タブ11の厚さ方向)の寸法に比べて、幅方向(左右方向)の寸法が大きい扁平な形態である。また、タブ11の長さ方向と直交する断面形状は、幅方向に関して対称である。また、この断面形状は、タブ11の前端部と後端部を除いた大部分の領域(即ち、天板部24及び弾性接触片25と接触可能な領域)において、一定である。   The male terminal fitting 10 is formed into a known shape that is elongated in the front-rear direction as a whole by subjecting a metal plate material (not shown) of a certain thickness punched into a predetermined shape to bending. A tab 11 is formed at the front end of the male terminal fitting 10 so as to protrude forward in a cantilevered manner. The tab 11 has a flat shape in which the dimension in the width direction (left-right direction) is larger than the dimension in the vertical direction (thickness direction of the tab 11). Further, the cross-sectional shape orthogonal to the length direction of the tab 11 is symmetric with respect to the width direction. In addition, this cross-sectional shape is constant in most of the region excluding the front end portion and the rear end portion of the tab 11 (that is, the region that can contact the top plate portion 24 and the elastic contact piece 25).

タブ11の上面(後述する天板部24との対向面)は、平坦面ではなく、湾曲(屈曲)した形状であり、幅方向において高低差がある。即ち、タブ11の上面は、幅方向中央部が凹んでおり、幅方向における両端部が高くなっている。タブ11の上面のうち幅方向両端部の高い部分は、左右対称な一対の接点部12となっている。タブ11の下面(後述する弾性接触片25との対向面)も、上面と同様、平坦面ではなく、湾曲(屈曲)した形状であり、幅方向において高低差がある。即ち、タブ11の下面は、上面とは逆に、幅方向中央部が下方へ突出しており、幅方向における両端部が幅方向中央部に対して相対的に上方へオフセットしている。つまり、タブ11の厚さは、その左端から右端に至るまで全幅領域に亘って一定の寸法である。タブ11の下面のうち幅方向中央部の突出した部分は、接触部13となっている。   The upper surface of the tab 11 (the surface facing the top plate portion 24 described later) is not a flat surface but a curved (bent) shape, and there is a height difference in the width direction. That is, the upper surface of the tab 11 has a concave central portion in the width direction, and both end portions in the width direction are high. Of the upper surface of the tab 11, the high portions at both ends in the width direction form a pair of symmetrical contact portions 12. Similarly to the upper surface, the lower surface of the tab 11 (the surface facing the elastic contact piece 25 described later) is not a flat surface but a curved (bent) shape and has a height difference in the width direction. That is, the lower surface of the tab 11 is opposite to the upper surface, and the central portion in the width direction protrudes downward, and both end portions in the width direction are offset upward relative to the central portion in the width direction. That is, the thickness of the tab 11 has a constant dimension over the entire width region from the left end to the right end. A protruding portion at the center in the width direction of the lower surface of the tab 11 is a contact portion 13.

雌端子金具20は、所定形状に打ち抜いた一定厚さの金属板材(図示省略)に曲げ加工等を施すことにより、全体として前後方向に細長い周知の形状に成形されている。雌端子金具20の前端部には、前端面の全領域が開放された形態の角筒部21が形成されている。   The female terminal fitting 20 is formed into a known shape that is elongated in the front-rear direction as a whole by bending a metal plate (not shown) of a certain thickness punched into a predetermined shape. At the front end portion of the female terminal fitting 20, a rectangular tube portion 21 is formed in which the entire area of the front end surface is open.

角筒部21は、前後方向に細長い平板状の基板部22と、基板部22の左右両側縁から略直角に立ち上がる左右対称な一対の平板状をなす側板部23と、左右両側板部23の立ち上がり端縁から基板部22と平行をなすように幅方向へ片持ち状に延出した形態の左右対称な一対の天板部24とを備えて構成されている。一方の天板部24と他方の天板部24の延出方向は、互いに逆向きである。各天板部24の幅方向における延出寸法は、角筒部21の幅寸法の約1/2である。そして、両天板部24は、その延出端縁24A同士を互いに突き当てるように配されている。   The rectangular tube portion 21 includes a flat plate-like substrate portion 22 elongated in the front-rear direction, a pair of left and right side plate portions 23 that form a pair of symmetrical flat plates that rise substantially at right angles from left and right side edges of the substrate portion 22, and left and right side plate portions 23. It comprises a pair of symmetrical top plates 24 in a form that cantilevered in the width direction so as to be parallel to the substrate portion 22 from the rising edge. The extending directions of one top plate portion 24 and the other top plate portion 24 are opposite to each other. The extension dimension in the width direction of each top plate part 24 is about ½ of the width dimension of the rectangular tube part 21. And both the top-plate parts 24 are distribute | arranged so that the extension edge 24A may mutually face | abut.

角筒部21の内部には、基板部22の前端縁から折り返し状に延出した形態の弾性接触片25が収容されている。弾性接触片25は、前後方向に細長く延びており、その長さ方向における略中央部分が、タブ11との接触領域26となっている。接触領域26は天板部24の下面(内面)と対向するように位置している。また、左右両側板部23の内面同士の幅方向の間隔は、タブ11の幅寸法よりも少し大きい寸法とされている。   An elastic contact piece 25 is housed inside the rectangular tube portion 21 in a form extending from the front end edge of the substrate portion 22 in a folded shape. The elastic contact piece 25 is elongated in the front-rear direction, and a substantially central portion in the length direction is a contact region 26 with the tab 11. The contact region 26 is positioned so as to face the lower surface (inner surface) of the top plate portion 24. In addition, the distance between the inner surfaces of the left and right side plate portions 23 in the width direction is slightly larger than the width of the tab 11.

角筒部21内に挿入されたタブ11は、挿入の過程で、弾性接触片25を下方へ弾性撓みさせながら、弾性接触片25と天板部24との間に割り込むように進入する。タブ11の挿入が完了した状態では、弾性接触片25の弾性復元力によりタブ11の左右対称な一対の接点部12が、一対の天板部24の下面に対し弾性的に当接する。つまり、一対の天板部24には、夫々、弾性接触片25の弾力に起因するタブ11側からの押圧力が個別に作用する。そして、この押圧力を受けた天板部24には、その側板部23に繋がる基端縁部24Bを支点として弾性接触片25から遠ざかる上方向、つまり角筒部21を開き変形させる方向のモーメント力が生じる。   The tab 11 inserted into the rectangular tube portion 21 enters the elastic contact piece 25 and the top plate portion 24 while being elastically bent downward in the insertion process. In the state where the insertion of the tab 11 is completed, the pair of symmetrical contact portions 12 of the tab 11 elastically contact the lower surfaces of the pair of top plate portions 24 by the elastic restoring force of the elastic contact piece 25. That is, the pressing force from the tab 11 side caused by the elasticity of the elastic contact piece 25 is individually applied to the pair of top plate portions 24. Then, the top plate portion 24 that has received this pressing force has a moment in the upward direction away from the elastic contact piece 25, that is, in the direction to open and deform the rectangular tube portion 21, with the base end edge portion 24 B connected to the side plate portion 23 as a fulcrum. Power is generated.

角筒部21の開き変形を防止するため、本参考例1では、天板部24における接点部12の当接位置を、側板部23に近い位置に設定している。つまり、右側の接点部12における天板部24との当接位置は、右側の天板部24の基端縁部24B(右側の側板部23に繋がる縁部)に設定されてする。左側の接点部12における天板部24との当接位置は、左側の天板部24の基端縁部24B(左側の側板部23に繋がる縁部)に設定されている。 In the first reference example , the contact position of the contact portion 12 in the top plate portion 24 is set to a position close to the side plate portion 23 in order to prevent the square tube portion 21 from opening and deforming. That is, the contact position of the right contact portion 12 with the top plate portion 24 is set to the base end edge portion 24B (the edge portion connected to the right side plate portion 23) of the right top plate portion 24. The contact position of the left contact portion 12 with the top plate portion 24 is set to a base end edge portion 24B (an edge portion connected to the left side plate portion 23) of the left top plate portion 24.

この設定された当接位置は、角筒部21の幅方向中央位置から遠い位置である。このように、本参考例1では、天板部24に対する接点部12の当接位置(タブ11側から天板部24に作用する弾性押圧位置)を、角筒部21の幅方向中央位置よりも側板部23に近い位置となるように配している。この当接位置(押圧位置)は、押圧力を受けた天板部24が開き変形しようとするときの支点となる側板部23に近い位置(基端縁部24B)である。したがって、タブ11側からの弾性押圧力によって天板部24に生じる開き方向のモーメント力は、小さく抑えられる。 The set contact position is a position far from the center position in the width direction of the rectangular tube portion 21. As described above, in the first reference example , the contact position of the contact portion 12 with respect to the top plate portion 24 (the elastic pressing position that acts on the top plate portion 24 from the tab 11 side) is determined from the center position in the width direction of the square tube portion 21. Also, it is arranged so as to be close to the side plate portion 23. This abutting position (pressing position) is a position (base end edge portion 24B) close to the side plate portion 23 that becomes a fulcrum when the top plate portion 24 that has received the pressing force is to open and deform. Therefore, the moment force in the opening direction generated in the top plate portion 24 by the elastic pressing force from the tab 11 side is suppressed to a small value.

また、タブ11と弾性接触片25が、幅方向に関して概ね対称な形態であり、タブ11における弾性接触片25との接触部13が、幅方向中央部のみに配されている。この構成によれば、幅方向におけるタブ11と弾性接触片25との接触領域26が比較的狭いので、タブ11が幅方向に傾いても、タブ11と弾性接触片25との接触形態が安定した状態に保たれる。また、タブ11は、略一定厚さの板材を曲げ加工した形態であるから、タブ11の材料となる板材を薄くすることができる。したがって、本参考例1では、雄端子金具10の材料コストを低減することができる。 Further, the tab 11 and the elastic contact piece 25 are substantially symmetrical with respect to the width direction, and the contact portion 13 of the tab 11 with the elastic contact piece 25 is arranged only in the center portion in the width direction. According to this configuration, since the contact area 26 between the tab 11 and the elastic contact piece 25 in the width direction is relatively narrow, even if the tab 11 is inclined in the width direction, the contact form between the tab 11 and the elastic contact piece 25 is stable. It is kept in the state. Moreover, since the tab 11 is a form obtained by bending a plate material having a substantially constant thickness, the plate material used as the material of the tab 11 can be thinned. Therefore, in this reference example 1, the material cost of the male terminal fitting 10 can be reduced.

<実施例
次に、本発明を具体化した実施例を図2を参照して説明する。本実施例の端子金具の接続構造は、雄端子金具30のタブ31の断面形状を上記参考例1とは異なる構成としたものである。その他の構成については上記参考例1と同じであるため、同じ構成については、同一符号を付し、構造、作用及び効果の説明は省略する。
<Example 1 >
Next, an embodiment 1 embodying the present invention with reference to FIG. The connection structure of the terminal fitting of the first embodiment is such that the cross-sectional shape of the tab 31 of the male terminal fitting 30 is different from that of the reference example 1. Since other configurations are the same as those in Reference Example 1, the same reference numerals are given to the same configurations, and descriptions of the structure, operation, and effects are omitted.

タブ31は、上下方向(タブ31の厚さ方向)の寸法に比べて、幅方向(左右方向)の寸法が大きい扁平な形態である。また、タブ31の長さ方向と直交する断面形状は、幅方向に関して対称である。また、この断面形状は、タブ31の前端部と後端部を除いた大部分の領域(即ち、天板部24及び弾性接触片25と接触可能な領域)において、一定である。   The tab 31 has a flat shape in which the dimension in the width direction (left-right direction) is larger than the dimension in the vertical direction (thickness direction of the tab 31). Further, the cross-sectional shape orthogonal to the length direction of the tab 31 is symmetric with respect to the width direction. In addition, this cross-sectional shape is constant in most of the region excluding the front end portion and the rear end portion of the tab 31 (that is, the region that can contact the top plate portion 24 and the elastic contact piece 25).

タブ31の上面(天板部24との対向面)は、平坦面ではなく、湾曲(屈曲)した形状であり、幅方向において高低差がある。即ち、タブ31の上面は、幅方向中央部と両側縁部の3箇所が突出した形態であり、これらの間の2箇所が凹んだ形体である。幅方向中央部の高さは、幅方向両側縁部よりも少し低い。タブ31の上面における幅方向両側縁部は、左右対称な一対の接点部32となっている。   The upper surface of the tab 31 (the surface facing the top plate portion 24) is not a flat surface but a curved (bent) shape and has a height difference in the width direction. That is, the upper surface of the tab 31 has a shape in which three portions of the center portion in the width direction and both side edge portions protrude, and the two portions therebetween are recessed. The height of the central portion in the width direction is slightly lower than the side edge portions in the width direction. Both side edges in the width direction on the upper surface of the tab 31 form a pair of symmetrical contact points 32.

タブ31の下面(弾性接触片25との対向面)も、上面と同様、平坦面ではなく、湾曲(屈曲)した形状であり、幅方向において高低差がある。即ち、タブ31の下面は、上面とは逆に、幅方向中央部と幅方向両側縁部の3箇所が下方へ突出した形態であり、これらの間の2箇所が凹んだ形態である。幅方向両側縁部の高さは、幅方向中央部よりも高い。タブ31の下面における幅方向中央部は、接触部33となっている。タブ31の厚さは、その左端から右端に至るまで全幅領域に亘って一定ではない。   Similarly to the upper surface, the lower surface of the tab 31 (the surface facing the elastic contact piece 25) is not a flat surface but a curved (bent) shape and has a height difference in the width direction. That is, the lower surface of the tab 31 has a configuration in which three portions of the center portion in the width direction and both side edge portions in the width direction protrude downward, and two portions therebetween are recessed, contrary to the upper surface. The height of both side edges in the width direction is higher than that in the width direction center. A central portion in the width direction on the lower surface of the tab 31 is a contact portion 33. The thickness of the tab 31 is not constant over the entire width region from the left end to the right end.

角筒部21内に挿入されたタブ31は、挿入の過程で、弾性接触片25を下方へ弾性撓みさせながら、弾性接触片25と天板部24との間に割り込むように進入する。タブ31の挿入が完了した状態では、弾性接触片25の弾性復元力によりタブ31の左右対称な一対の接点部32が、一対の天板部24の下面に対し弾性的に当接する。つまり、一対の天板部24には、夫々、弾性接触片25の弾力に起因するタブ31側からの押圧力が個別に作用する。そして、この押圧力を受けた天板部24には、その側板部23に繋がる基端縁部24Bを支点として弾性接触片25から遠ざかる上方向、つまり角筒部21を開き変形させる方向のモーメント力が生じる。   The tab 31 inserted into the rectangular tube portion 21 enters so as to interrupt between the elastic contact piece 25 and the top plate portion 24 while elastically bending the elastic contact piece 25 downward in the process of insertion. In a state where the insertion of the tab 31 is completed, the pair of symmetrical contact portions 32 of the tab 31 elastically contact the lower surfaces of the pair of top plate portions 24 by the elastic restoring force of the elastic contact piece 25. That is, the pressing force from the tab 31 side caused by the elasticity of the elastic contact piece 25 is individually applied to the pair of top plate portions 24. Then, the top plate portion 24 that has received this pressing force has a moment in the upward direction away from the elastic contact piece 25, that is, in the direction to open and deform the rectangular tube portion 21, with the base end edge portion 24 B connected to the side plate portion 23 as a fulcrum. Power is generated.

角筒部21の開き変形を防止するため、本実施例では、天板部24における接点部32の当接位置を、側板部23に近い位置に設定している。つまり、右側の接点部32における天板部24との当接位置は、右側の天板部24の基端縁部24B(右側の側板部23に繋がる縁部)に設定されている。左側の接点部32における天板部24との当接位置は、左側の天板部24の基端縁部24B(左側の側板部23に繋がる縁部)に設定されている。この設定された当接位置は、角筒部21の幅方向中央位置から遠い位置である。 In the first embodiment, the contact position of the contact portion 32 in the top plate portion 24 is set to a position close to the side plate portion 23 in order to prevent the square tube portion 21 from opening and deforming. That is, the contact position of the right contact portion 32 with the top plate portion 24 is set to the base end edge portion 24B (the edge portion connected to the right side plate portion 23) of the right top plate portion 24. The contact position of the left contact portion 32 with the top plate portion 24 is set to the base end edge portion 24B of the left top plate portion 24 (the edge portion connected to the left side plate portion 23). The set contact position is a position far from the center position in the width direction of the rectangular tube portion 21.

このように、本実施例では、天板部24に対する接点部32の当接位置(タブ31側から天板部24に作用する弾性押圧位置)を、角筒部21の幅方向中央位置よりも側板部23に近い位置となるように配している。この当接位置(押圧位置)は、押圧力を受けた天板部24が開き変形しようとするときの支点となる側板部23に近い位置(基端縁部24B)である。したがって、タブ31側からの弾性押圧力によって天板部24に生じる開き方向のモーメント力は、小さく抑えられる。 As described above, in the first embodiment, the contact position of the contact portion 32 with respect to the top plate portion 24 (the elastic pressing position acting on the top plate portion 24 from the tab 31 side) is set from the center position in the width direction of the square tube portion 21. Also, it is arranged so as to be close to the side plate portion 23. This abutting position (pressing position) is a position (base end edge portion 24B) close to the side plate portion 23 that becomes a fulcrum when the top plate portion 24 that has received the pressing force is to open and deform. Therefore, the moment force in the opening direction generated in the top plate portion 24 by the elastic pressing force from the tab 31 side can be suppressed to a small value.

また、タブ31と弾性接触片25が、幅方向に関して概ね対称な形態であり、タブ31における弾性接触片25との接触部33が、幅方向中央部のみに配されている。この構成によれば、幅方向におけるタブ31と弾性接触片25との接触領域が比較的狭いので、タブ31が幅方向に傾いても、タブ31と弾性接触片25との接触形態が安定した状態に保たれる。   Further, the tab 31 and the elastic contact piece 25 are substantially symmetrical with respect to the width direction, and the contact portion 33 of the tab 31 with the elastic contact piece 25 is disposed only in the center portion in the width direction. According to this configuration, since the contact area between the tab 31 and the elastic contact piece 25 in the width direction is relatively narrow, even if the tab 31 is inclined in the width direction, the contact form between the tab 31 and the elastic contact piece 25 is stable. Kept in a state.

<他の実施例>
本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。
)上記実施例において、弾性接触片におけるタブとの接触領域にエンボス状の突部を形成してもよい。
)上記実施例において、一対の天板部を重ね合わせた形態としてもよい。
<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 said Example 1 , you may form an embossed protrusion in the contact area | region with the tab in an elastic contact piece.
( 2 ) In the said Example 1 , it is good also as a form which piled up a pair of top-plate part.

<参考例
次に、本願の参考例の端子金具の接続構造を、図3を参照して具体的に説明する。本参考例の端子金具の接続構造は、先端に細長いタブ41が形成された雄端子金具40と、先端に角筒部51が形成された雌端子金具50とを接続するためのものである。
<Reference Example 2 >
Next, the connection structure of the terminal metal fitting of the reference example 2 of this application is demonstrated concretely with reference to FIG. The connection structure of the terminal fitting of the present reference example 2 is for connecting a male terminal fitting 40 having an elongated tab 41 formed at the tip and a female terminal fitting 50 having a square tube portion 51 formed at the tip. .

雄端子金具40は、所定形状に打ち抜いた一定厚さの金属板材(図示省略)に曲げ加工等を施すことにより、全体として前後方向に細長い周知の形状に成形されている。雄端子金具40の前端部には、前方へ片持ち状に細長く突出した形態のタブ41が形成されている。タブ41は、上下方向(タブ41の厚さ方向)の寸法に比べて、幅方向(左右方向)の寸法が大きい扁平な形態である。タブ41の長さ方向と直交する断面形状は、幅方向に関して概ね対称であるが、厳密には、幅方向の両端縁部において若干相違している。また、この断面形状は、タブ41の前端部と後端部を除いた大部分の領域(即ち、天板部54及び弾性接触片56と接触可能な領域)において、一定である。   The male terminal fitting 40 is formed into a known shape that is elongated in the front-rear direction as a whole by subjecting a metal plate material (not shown) of a certain thickness punched into a predetermined shape to bending. A tab 41 is formed at the front end of the male terminal fitting 40 so as to protrude forward in a cantilevered manner. The tab 41 has a flat shape in which the dimension in the width direction (left-right direction) is larger than the dimension in the vertical direction (thickness direction of the tab 41). The cross-sectional shape orthogonal to the length direction of the tab 41 is generally symmetric with respect to the width direction, but strictly speaking, it is slightly different at both end edges in the width direction. In addition, this cross-sectional shape is constant in most of the region excluding the front end and the rear end of the tab 41 (that is, the region that can contact the top plate portion 54 and the elastic contact piece 56).

タブ41は、一定厚さの板材を長さ方向(前後方向)の折り目42に沿って折り返し状に曲げ加工して成形されている。折り目42は、タブ41の左右両側縁のうち一方の側縁に位置している。タブ41を構成する上板部43と下板部44は、互いに上下に間隔を空けた状態で、折り目42から他方の側縁に向かって片持ち状に延出した形態となっている。したがって、タブ41の内部は、中空となっている。タブ41の見かけ上の厚さ寸法は、その左右両側縁において最小であり、左右方向中央部(後述する上側接触部45及び下側接触部46)において最大である。また、タブ41は前後方向の折り目42に沿って曲げ加工されているので、折り目42と交差する方向における曲げ剛性が高い。   The tab 41 is formed by bending a plate material having a constant thickness into a folded shape along a fold line 42 in the length direction (front-rear direction). The fold line 42 is located on one of the left and right side edges of the tab 41. The upper plate portion 43 and the lower plate portion 44 constituting the tab 41 are in a form that cantilevered from the fold line 42 toward the other side edge with a space therebetween in the vertical direction. Therefore, the inside of the tab 41 is hollow. The apparent thickness dimension of the tab 41 is the smallest at the left and right side edges, and is the largest at the center in the left-right direction (upper contact portion 45 and lower contact portion 46 described later). Further, since the tab 41 is bent along the fold line 42 in the front-rear direction, the bending rigidity in the direction intersecting the fold line 42 is high.

上板部43(タブ41)の上面(後述する天板部54との対向面)は、平坦面ではなく、湾曲(屈曲)した形状であり、幅方向において高低差がある。即ち、タブ41の上面は、幅方向中央部で最も高く、幅方向における両端部で最も低くなっている。タブ41の上面のうち幅方向中央部は、前後方向(タブ41の長さ方向と平行な方向)の稜線状に突出した形態の上側接触部45(本発明の構成要件である接触部)となっている。   An upper surface of the upper plate portion 43 (tab 41) (a surface facing a top plate portion 54 described later) is not a flat surface but a curved (bent) shape, and there is a difference in height in the width direction. That is, the upper surface of the tab 41 is highest at the center in the width direction and lowest at both ends in the width direction. Of the upper surface of the tab 41, the center portion in the width direction is an upper contact portion 45 (contact portion which is a constituent element of the present invention) in a form protruding in a ridgeline shape in the front-rear direction (a direction parallel to the length direction of the tab 41). It has become.

下板部44(タブ41)の下面(後述する弾性接触片56との対向面)も、上板部43と同様、平坦面ではなく、湾曲(屈曲)した形状であり、幅方向において高低差がある。即ち、タブ41の下面は、上面とは逆に、幅方向中央部が下方へ突出しており、幅方向における両端部が幅方向中央部に対して相対的に上方へオフセットしている。タブ41の下面のうち幅方向中央部は、前後方向の稜線状に突出した形態の下側接触部46(本発明の構成要件である接触部)となっている。   Similarly to the upper plate portion 43, the lower surface of the lower plate portion 44 (tab 41) (a surface facing an elastic contact piece 56 described later) is not a flat surface but a curved (bent) shape, and has a height difference in the width direction. There is. That is, the lower surface of the tab 41 is opposite to the upper surface, and the central portion in the width direction protrudes downward, and both end portions in the width direction are offset upward relative to the central portion in the width direction. Of the lower surface of the tab 41, the center portion in the width direction is a lower contact portion 46 (contact portion which is a constituent feature of the present invention) that protrudes in a ridgeline shape in the front-rear direction.

雌端子金具50は、所定形状に打ち抜いた一定厚さの金属板材(図示省略)に曲げ加工等を施すことにより、全体として前後方向に細長い周知の形状に成形されている。雌端子金具50の前端部には、前端面の全領域が開放された形態の角筒部51が形成されている。   The female terminal fitting 50 is formed into a known shape that is elongated in the front-rear direction as a whole by bending a metal plate (not shown) of a certain thickness punched into a predetermined shape. At the front end portion of the female terminal fitting 50, a rectangular tube portion 51 having a form in which the entire area of the front end surface is opened is formed.

角筒部51は、前後方向に細長い平板状の基板部52と、基板部52の左右両側縁から略直角に立ち上がる左右一対の平板状をなす側板部53と、左右両側板部53の立ち上がり端縁から基板部52と平行をなすように幅方向へ片持ち状に延出した形態の左右対称な一対の天板部54とを備えて構成されている。一対の天板部54は上下に重なるように配置されている。下側(角筒部51の内側)に位置する天板部54の下面(内面)は、高さが全幅に亘って一定の受圧面55となっている。   The rectangular tube portion 51 includes a flat plate-like substrate portion 52 that is elongated in the front-rear direction, a pair of left and right flat plate portions 53 that rise substantially at right angles from the left and right edges of the substrate portion 52, and rising ends of the left and right plate portions 53. A pair of left and right symmetrical top plate portions 54 in a cantilever shape extending in the width direction so as to be parallel to the substrate portion 52 from the edge. A pair of top-plate parts 54 are arrange | positioned so that it may overlap up and down. The lower surface (inner surface) of the top plate portion 54 located on the lower side (inner side of the rectangular tube portion 51) is a pressure receiving surface 55 whose height is constant over the entire width.

角筒部51の内部には、基板部52の前端縁から折り返し状に延出した形態の弾性接触片56が収容されている。弾性接触片56は、前後方向に細長く延びており、その長さ方向(前後方向)における略中央部分が、タブ41に接触するための接触領域57となっている。この接触領域57は、高さが全幅に亘って一定であり、天板部54の受圧面55に対し全幅に亘って一定の間隔を空けて対向している。   Inside the rectangular tube portion 51, an elastic contact piece 56 is accommodated that extends from the front end edge of the substrate portion 52 in a folded shape. The elastic contact piece 56 is elongated in the front-rear direction, and a substantially central portion in the length direction (front-rear direction) serves as a contact region 57 for contacting the tab 41. The height of the contact region 57 is constant over the entire width, and is opposed to the pressure receiving surface 55 of the top plate portion 54 with a constant interval over the entire width.

角筒部51内に挿入されたタブ41は、挿入の過程で、弾性接触片56を下方へ弾性撓みさせながら、弾性接触片56と天板部54との間に割り込むように進入する。タブ41の挿入が完了した状態では、弾性接触片56の弾性復元力によりタブ41の上側接触部45が、天板部54の受圧面55に対して前後方向の略線接触状に当接するとともに、タブ41の下側接触部46が、弾性接触片56の接触領域57に対して前後方向の略線接触状に当接する。タブ41と天板部54との接触形態は略線接触状で狭小であるから、高い接触圧が確保される。タブ41と弾性接触片56との接触形態も略線接触状で狭小であるから、高い接触圧が確保される。また、タブ41が角筒部51に挿入された状態で、タブ41が左右に傾いても、その傾き角度が所定の範囲内であれば、タブ41と天板部54との接触形態が略線接触状に維持されるとともに、タブ41と弾性接触片56との接触形態も略線接触状に維持される。   The tab 41 inserted into the rectangular tube portion 51 enters so as to interrupt between the elastic contact piece 56 and the top plate portion 54 while elastically bending the elastic contact piece 56 downward during the insertion process. In a state where the insertion of the tab 41 is completed, the upper contact portion 45 of the tab 41 abuts on the pressure receiving surface 55 of the top plate portion 54 in a substantially line contact manner by the elastic restoring force of the elastic contact piece 56. The lower contact portion 46 of the tab 41 abuts on the contact region 57 of the elastic contact piece 56 in a substantially linear contact shape in the front-rear direction. Since the contact form between the tab 41 and the top plate part 54 is substantially linear and narrow, a high contact pressure is ensured. Since the contact form between the tab 41 and the elastic contact piece 56 is also substantially linear and narrow, a high contact pressure is ensured. In addition, even when the tab 41 is tilted to the left and right with the tab 41 inserted into the rectangular tube portion 51, the contact form between the tab 41 and the top plate portion 54 is approximately as long as the tilt angle is within a predetermined range. While being maintained in a line contact state, the contact form between the tab 41 and the elastic contact piece 56 is also maintained in a substantially line contact state.

本参考例の端子金具の接続構造は、先端に前後方向に細長く延びるタブ41が形成された雄端子金具40と、先端に角筒部51が形成された雌端子金具50と、角筒部51を構成する平板状の受け板部と、角筒部51の内部に配されて、タブ41を天板部54との間で弾性的に挟み付ける弾性接触片56と、タブ41における天板部54との対向面に形成され、天板部54側に向かって前後方向の稜線状に突出することで、天板部54に対して略線接触状に当接する上側接触部45とを備えている。この構成によれば、タブ41と天板部54との接触部分は、幅方向において狭小であるから、タブ41が傾いても、上側接触部45と天板部54との接触形態は略線接触状を維持するので、接触形態が安定する。   The connection structure of the terminal fitting of this reference example includes a male terminal fitting 40 in which a tab 41 elongated in the front-rear direction is formed at the tip, a female terminal fitting 50 in which a square tube portion 51 is formed at the tip, and a square tube portion 51. A flat plate-shaped receiving plate portion, an elastic contact piece 56 that is disposed inside the rectangular tube portion 51 and elastically sandwiches the tab 41 with the top plate portion 54, and the top plate portion of the tab 41. And an upper contact portion 45 that comes into contact with the top plate portion 54 in a substantially line contact manner by projecting in a ridge line shape in the front-rear direction toward the top plate portion 54 side. Yes. According to this configuration, since the contact portion between the tab 41 and the top plate portion 54 is narrow in the width direction, the contact form between the upper contact portion 45 and the top plate portion 54 is substantially a line even when the tab 41 is inclined. Since the contact state is maintained, the contact form is stabilized.

同じく本参考例の端子金具の接続構造は、先端に前後方向に細長く延びるタブ41が形成された雄端子金具40と、先端に角筒部51が形成された雌端子金具50と、角筒部51の内部に配されて、タブ41を天板部54との間で弾性的に挟み付ける弾性接触片56と、タブ41における弾性接触片56との対向面に形成され、弾性接触片56側に向かって前後方向の稜線状に突出することで、弾性接触片56に対して略線接触状に当接する下側接触部46を備えていることを特徴とする。この構成によれば、弾性接触片56にエンボス部を形成しなくても、タブ41の稜線状の下側接触部46が、弾性接触片56に対して略先接触状に当接するから、タブ41と弾性接触片56との接触範囲が狭小となり、高い接触圧が確保される。 Similarly, the connection structure of the terminal fitting of the present Reference Example 2 includes a male terminal fitting 40 in which a tab 41 extending in the front-rear direction is formed at the tip, a female terminal fitting 50 in which a square tube portion 51 is formed at the tip, and a square tube. An elastic contact piece 56 that is disposed inside the portion 51 and elastically sandwiches the tab 41 between the top plate portion 54 and the elastic contact piece 56 in the tab 41. By projecting in a ridgeline shape in the front-rear direction toward the side, a lower contact portion 46 that comes into contact with the elastic contact piece 56 in a substantially line contact shape is provided. According to this configuration, even if the embossed portion is not formed on the elastic contact piece 56, the ridge-line lower contact portion 46 of the tab 41 abuts on the elastic contact piece 56 in a substantially tip contact state. A contact range between the elastic contact piece 41 and the elastic contact piece 56 becomes narrow, and a high contact pressure is secured.

<参考例
次に、本願の参考例を図4を参照して説明する。上記参考例のタブ41が、板材を前後方向の折り目42に沿って折り返し、上板部43と下板部44との間(つま、タブ41の内部)を中空としたのに対し、本参考例の雄端子金具60のタブ61は、曲げ加工をせずに成形されている。つまり、タブ61はプレス加工によって成形されており、タブ61の内部は中実である。
<Reference Example 3 >
Next, Reference Example 3 of the present application will be described with reference to FIG. While the tab 41 of the reference example 2 folds the plate material along the fold line 42 in the front-rear direction, the space between the upper plate portion 43 and the lower plate portion 44 (that is, the inside of the tab 41) is hollow. The tab 61 of the male terminal fitting 60 of Reference Example 3 is formed without bending. That is, the tab 61 is formed by press working, and the inside of the tab 61 is solid.

タブ61は、上下方向(タブ61の厚さ方向)の寸法に比べて、幅方向(左右方向)の寸法が大きい扁平な形態である。タブ61の長さ方向と直交する断面形状は、幅方向に関して対称である。タブ61の厚さ寸法は、その左右両側縁において最小であり、左右方向中央部(後述する上側接触部62及び下側接触部63)において最大である。   The tab 61 has a flat shape in which the dimension in the width direction (left-right direction) is larger than the dimension in the vertical direction (thickness direction of the tab 61). The cross-sectional shape orthogonal to the length direction of the tab 61 is symmetric with respect to the width direction. The thickness dimension of the tab 61 is the minimum at the left and right side edges, and is the maximum at the center in the left-right direction (upper contact portion 62 and lower contact portion 63 described later).

タブ61の上面(天板部54との対向面)は、平坦面ではなく、湾曲(屈曲)した形状であり、幅方向において高低差がある。即ち、タブ61の上面は、幅方向中央部で最も高く、幅方向における両端部で最も低くなっている。タブ61の上面のうち幅方向中央部は、前後方向(タブ61の長さ方向と平行な方向)の稜線状に突出した形態の上側接触部62(本発明の構成要件である接触部)となっている。   The upper surface of the tab 61 (the surface facing the top plate portion 54) is not a flat surface but a curved (bent) shape and has a height difference in the width direction. That is, the upper surface of the tab 61 is highest at the center in the width direction and lowest at both ends in the width direction. Of the upper surface of the tab 61, the central portion in the width direction is an upper contact portion 62 (contact portion which is a constituent element of the present invention) in a form protruding in a ridgeline shape in the front-rear direction (a direction parallel to the length direction of the tab 61). It has become.

タブ61の下面(弾性接触片56との対向面)も、上面と同様、平坦面ではなく、湾曲(屈曲)した形状であり、幅方向において高低差がある。即ち、タブ61の下面は、上面とは逆に、幅方向中央部が下方へ突出しており、幅方向における両端部が幅方向中央部に対して相対的に上方へオフセットしている。タブ61の下面のうち幅方向中央部は、前後方向の稜線状に突出した形態の下側接触部63(本発明の構成要件である接触部)となっている。
その他の構成については上記参考例と同じであるため、同じ構成については、同一符号を付し、構造、作用及び効果の説明は省略する。
Similarly to the upper surface, the lower surface of the tab 61 (the surface facing the elastic contact piece 56) is not a flat surface but a curved (bent) shape and has a height difference in the width direction. That is, the lower surface of the tab 61 has a widthwise central portion protruding downward, opposite to the upper surface, and both end portions in the widthwise direction are offset upward relative to the widthwise central portion. Of the lower surface of the tab 61, the central portion in the width direction is a lower contact portion 63 (contact portion which is a constituent element of the present invention) that protrudes in a ridgeline shape in the front-rear direction.
Since the other configuration is the same as that of the reference example 2 , the same reference numeral is given to the same configuration, and the description of the structure, operation, and effect is omitted.

<参考例2,3に記載された発明の背景技術>
参考例2,3に記載された発明の背景技術を説明する。特開2004−039559号公報には、先端に細長いタブが形成された雄端子金具と、先端に角筒部が形成された雌端子金具とを接続する構造が開示されている。角筒部は、基板部と、基板部の左右両側縁から直角に立ち上がる左右一対の側板部と、側板部の立ち上がり端縁から基板部と平行に片持ち状に延出する天板部とを備えて構成されている。角筒部内に挿入されたタブは、天板部と弾性接触片との間で弾性的に挟み付けられる。
<Background art of the invention described in Reference Examples 2 and 3 >
The background art of the invention described in Reference Examples 2 and 3 will be described. Japanese Unexamined Patent Application Publication No. 2004-039559 discloses a structure in which a male terminal fitting having a long and narrow tab formed at the tip and a female terminal fitting having a square tube portion formed at the tip are connected. The rectangular tube portion includes a base plate portion, a pair of left and right side plate portions that rise at right angles from the left and right side edges of the substrate portion, and a top plate portion that extends in a cantilevered manner from the rising edge of the side plate portion in parallel with the substrate portion. It is prepared for. The tab inserted into the rectangular tube portion is elastically sandwiched between the top plate portion and the elastic contact piece.

参考例2,3に記載された発明の概要を説明する。発明が解決しようとする課題は、次の通りである。タブは、天板部に対し面当たりしている。したがって、タブが、幅方向に沿って勾配を生じるように傾くと、タブの左右両側縁のうち一方の側縁が天板部に対して線接触することになり、タブと天板部との接触形態が不安定となる。そのため、タブが傾いても接触形態の安定状態を維持するための手段が要望される。 The outline of the invention described in Reference Examples 2 and 3 will be described. Problems to be solved by the invention are as follows. The tab is in contact with the top plate. Therefore, when the tab is tilted so as to form a gradient along the width direction, one of the left and right side edges of the tab comes into line contact with the top plate, and the tab and the top plate The contact form becomes unstable. Therefore, a means for maintaining the stable state of the contact form even when the tab is inclined is desired.

また、弾性接触片とタブとの接触に関しては、タブにおける弾性接触片との接触面が平面状であるため、接触圧を確保するために、弾性接触片にエンボス部を形成して、弾性接触片とタブを点接触させている。しかし、エンボス部を形成したことによって、角筒部の高さ寸法が大きくなるという問題がある。そのため、弾性接触片にエンボス部を形成せずに、タブと弾性接触片との接触圧を確保するための手段が要望される。   In addition, regarding the contact between the elastic contact piece and the tab, since the contact surface of the tab with the elastic contact piece is flat, an elastic contact piece is formed on the elastic contact piece in order to ensure contact pressure. Point and tab are in point contact. However, since the embossed portion is formed, there is a problem that the height dimension of the rectangular tube portion is increased. Therefore, there is a demand for a means for ensuring the contact pressure between the tab and the elastic contact piece without forming an embossed portion on the elastic contact piece.

上記2つの課題のうち「タブが傾いても接触形態の安定状態を維持する」という課題を解決するため、本参考例2,3に記載した発明は、
先端に前後方向に細長く延びるタブが形成された雄端子金具と、
先端に角筒部が形成された雌端子金具と、
前記角筒部を構成する平板状の受け板部と、
前記角筒部の内部に配されて、前記タブを前記天板部との間で弾性的に挟み付ける弾性接触片と、
前記タブにおける前記天板部との対向面に形成され、前記天板部側に向かって前後方向の稜線状に突出することで、前記天板部に対して略線接触状に当接する接触部とを備えていることを特徴とする。
In order to solve the problem of “maintaining the stable state of the contact form even when the tab is tilted” among the above two problems, the inventions described in Reference Examples 2 and 3 are
A male terminal fitting formed with a tab extending in the front-rear direction at the tip;
A female terminal fitting with a square tube formed at the tip;
A flat receiving plate portion constituting the rectangular tube portion;
An elastic contact piece disposed inside the rectangular tube portion and elastically sandwiching the tab with the top plate portion;
A contact portion that is formed on a surface of the tab that faces the top plate portion and protrudes in a ridge line shape in the front-rear direction toward the top plate portion, thereby contacting the top plate portion in a substantially line contact manner. It is characterized by having.

この構成によれば、タブと天板部との接触範囲は、幅方向において狭小であるから、タブが傾いても、接触部と天板部との接触形態は略線接触状を維持するので、接触形態が安定する。   According to this configuration, since the contact range between the tab and the top plate portion is narrow in the width direction, even if the tab is inclined, the contact form between the contact portion and the top plate portion maintains a substantially linear contact shape. , The contact form is stable.

また、「弾性接触片にエンボス部を形成せずに、タブと弾性接触片との接触圧を確保する」という課題を解決するため、本参考例2,3に記載した発明は、
先端に前後方向に細長く延びるタブが形成された雄端子金具と、
先端に角筒部が形成された雌端子金具と、
前記角筒部の内部に配されて、前記タブを前記天板部との間で弾性的に挟み付ける弾性接触片と、
前記タブにおける前記弾性接触片との対向面に形成され、前記弾性接触片側に向かって前後方向の稜線状に突出することで、前記弾性接触片に対して略線接触状に当接する接触部とを備えていることを特徴とする。
Further, in order to solve the problem of “ensuring the contact pressure between the tab and the elastic contact piece without forming an embossed portion on the elastic contact piece”, the inventions described in Reference Examples 2 and 3
A male terminal fitting formed with a tab extending in the front-rear direction at the tip;
A female terminal fitting with a square tube formed at the tip;
An elastic contact piece disposed inside the rectangular tube portion and elastically sandwiching the tab with the top plate portion;
A contact portion formed on a surface of the tab facing the elastic contact piece and projecting in a ridgeline shape in the front-rear direction toward the elastic contact piece side; It is characterized by having.

この構成によれば、弾性接触片にエンボス部を形成しなくても、タブの稜線状の接触部が、弾性接触片に対して略線接触状に当接するから、タブと弾性接触片との接触範囲が狭小となり、高い接触圧が確保される。   According to this configuration, even if the embossed portion is not formed on the elastic contact piece, the ridge line-shaped contact portion of the tab comes into contact with the elastic contact piece in a substantially line contact shape. The contact range is narrowed, and a high contact pressure is secured.

<他の参考例>
(1)上記参考例2,3では、タブを幅方向に関して概ね対称な形態としたが、タブは、幅方向に関して非対称な形態であってもよい。
(2)上記参考例2,3では、弾性接触片を幅方向に関して概ね対称な形態としたが、弾性接触片は、幅方向に関して非対称な形態であってもよい。
<Other reference examples>
(1) In the reference examples 2 and 3 , the tab is generally symmetric with respect to the width direction, but the tab may be asymmetric with respect to the width direction.
(2) In the reference examples 2 and 3 , the elastic contact piece has a substantially symmetric shape with respect to the width direction, but the elastic contact piece may have an asymmetric shape with respect to the width direction.

30…雄端子金具
31…タブ
32…接点部
33…接触部
20…雌端子金具
21…角筒部
22…基板部
23…側板部
24…天板部
25…弾性接触片
30 ... Male terminal fitting
31 ... Tab
32 ... Contact part
DESCRIPTION OF SYMBOLS 33 ... Contact part 20 ... Female terminal metal fitting 21 ... Square tube part 22 ... Substrate part 23 ... Side plate part 24 ... Top plate part 25 ... Elastic contact piece

Claims (1)

先端に細長いタブが形成された雄端子金具と、
先端に角筒部が形成された雌端子金具と、
前記角筒部を構成する基板部と、
前記基板部の左右両側縁から略直角に立ち上がることで前記角筒部を構成する一対の側板部と、
前記側板部の立ち上がり端縁から前記基板部と略平行に幅方向へ片持ち状に延出することで前記角筒部を構成する天板部と、
前記角筒部の内部に配されて、前記タブを前記天板部との間で弾性的に挟み付ける弾性接触片と、
前記タブに前記天板部と当接し得るように形成され、前記天板部に対する当接位置が、前記角筒部の幅方向中央位置よりも前記側板部に近い位置となるように配された一対の接点部とを備え
前記タブと前記弾性接触片が、幅方向に関して概ね対称な形態であり、
前記タブにおける前記弾性接触片との接触部が、幅方向中央部のみに配されており、
前記タブの上面は、幅方向中央部と幅方向両側縁部が上方へ突出し、幅方向中央部と幅方向両側縁部の間がそれぞれ凹み、幅方向中央部の高さが幅方向両側縁部よりも低い形態であり、幅方向両側縁部が前記一対の接点部となっており、
前記タブの下面は、幅方向中央部と幅方向両側縁部が下方へ突出し、幅方向中央部と幅方向両側縁部の間がそれぞれ凹み、幅方向両側縁部の高さが幅方向中央部よりも高い形態であり、幅方向中央部が前記接触部となっていることを特徴とする端子金具の接続構造。
A male terminal fitting with an elongated tab formed at the tip;
A female terminal fitting with a square tube formed at the tip;
A substrate portion constituting the rectangular tube portion;
A pair of side plate portions that constitute the rectangular tube portion by standing up substantially at right angles from the left and right side edges of the substrate portion;
A top plate portion that constitutes the rectangular tube portion by extending in a cantilevered manner in the width direction from the rising edge of the side plate portion substantially parallel to the substrate portion,
An elastic contact piece disposed inside the rectangular tube portion and elastically sandwiching the tab with the top plate portion;
The tab is formed so as to be in contact with the top plate portion, and the contact position with respect to the top plate portion is arranged so as to be closer to the side plate portion than the center position in the width direction of the rectangular tube portion. A pair of contact portions ,
The tab and the elastic contact piece are substantially symmetrical with respect to the width direction,
The contact portion with the elastic contact piece in the tab is disposed only in the center in the width direction,
The upper surface of the tab protrudes upward in the width direction center portion and the width direction side edges, and is recessed between the width direction center portion and the width direction side edges, and the height of the width direction center portion is the width direction side edges. Lower side, both side edges in the width direction are the pair of contact parts,
In the lower surface of the tab, the width direction center part and the width direction both side edges protrude downward, the space between the width direction center part and the width direction both side edges is recessed, respectively, and the height of the width direction both side edges is the width direction center part. The terminal fitting connection structure is characterized in that the contact portion is a central portion in the width direction, which is a higher form .
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