JP5678850B2 - Male terminal bracket - Google Patents

Male terminal bracket Download PDF

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Publication number
JP5678850B2
JP5678850B2 JP2011204310A JP2011204310A JP5678850B2 JP 5678850 B2 JP5678850 B2 JP 5678850B2 JP 2011204310 A JP2011204310 A JP 2011204310A JP 2011204310 A JP2011204310 A JP 2011204310A JP 5678850 B2 JP5678850 B2 JP 5678850B2
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edge
plate
tab portion
rising
terminal fitting
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JP2013065500A (en
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水谷　嘉宏
水谷　　嘉宏
修 平林
修 平林
大輔 平澤
大輔 平澤
野呂　豊
豊 野呂
岡本　道明
道明 岡本
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Description

本発明は、電線の接続用に端末に固着される雄端子金具に関する。   The present invention relates to a male terminal fitting fixed to a terminal for connection of electric wires.

雄端子金具は、導電性に優れた金属板をプレス加工して形成され、本体部の後方に電線の端末に固着されるバレルが設けられる一方、本体部の前面に、相手の雌端子金具と嵌合接続されるタブ部が突出形成された形状である。より具体的には、相手の雌端子金具には、内部に弾性接触片を備えた接続筒部が設けられ、雄端子金具のタブ部が雌端子金具の接続筒部に挿入されると、タブ部が弾性接触片と対向した壁面との間で弾性的に挟持されて、電気的な接続が取られるようになっている。ここで雄端子金具のタブ部としては、接触圧を確実に取るために所定の厚さが必要とされるが、その一方で、プレス加工の容易性等を考慮して、素材となる金属板は比較的薄いものがよいという事情がある。   The male terminal fitting is formed by pressing a metal plate excellent in conductivity, and a barrel fixed to the end of the electric wire is provided behind the main body portion, while the female terminal fitting of the other end is provided on the front surface of the main body portion. The tab portion to be fitted and connected has a protruding shape. More specifically, the mating female terminal fitting is provided with a connecting tube portion having an elastic contact piece inside, and the tab portion of the male terminal fitting is inserted into the connecting tube portion of the female terminal fitting. The portion is elastically sandwiched between the elastic contact piece and the opposite wall surface so that an electrical connection is established. Here, the tab portion of the male terminal fitting is required to have a predetermined thickness in order to ensure contact pressure. On the other hand, considering the ease of pressing, etc., the metal plate as the material The reason is that a relatively thin one is good.

そこで従来、下記特許文献１には、比較的薄肉の金属板からなる端子素材の一部に帯状部を設け、同帯状部を幅方向に折り曲げることにより扁平な角筒形をなすタブ部を形成した例が記載されている。
第１の例としては、帯状部の一方の側縁側をＵ字状に折り返し、同折り返し端を直角曲げして帯状部の他方の側縁に当てることにより扁平な角筒形としたものであり、潰れ変形に抗した強度は備えている。
第２の例としては、帯状部の両側縁を上面の中央で突き合うようにして扁平な角筒形に形成し、突き合った両側縁に補強壁を直角曲げして両補強壁を下面に当てることにより、潰れ変形に抗した強度を備えるようにしている。 Therefore, conventionally, in Patent Document 1 below, a band-shaped portion is provided on a part of a terminal material made of a relatively thin metal plate, and a tab portion having a flat rectangular tube shape is formed by bending the band-shaped portion in the width direction. An example is described.
As a first example, one side edge side of the belt-like portion is folded in a U shape, and the folded end is bent at a right angle and applied to the other side edge of the belt-like portion to form a flat rectangular tube shape. In addition, it has strength against crushing deformation.
As a second example, the both side edges of the belt-shaped portion are formed into a flat rectangular tube shape so as to face each other at the center of the upper surface, and the reinforcing walls are bent at right angles to the both side edges so that the both reinforcing walls face the lower surface. By applying, it has strength against crushing deformation.

特許第３４８０７０８号公報Japanese Patent No. 3480708

ところで、この種の雄端子金具のタブ部は細長い形状であることから、タブ部の先端に異物が当たった場合等に、特に同タブ部の基端に対して厚さ方向の曲げ応力が生じるが、上記第１の例のタブ部では、角筒を構成する一方の側板の高さが低くなった断面形状であるため、曲げ強度が不足する嫌いがある。
一方、第２の例のタブ部では、曲げ強度は確保されるが、相手の雌端子金具における弾性係止片または対向壁と接触するタブ部の上面が、平坦面ではなくて幅方向の途中で分断された面であるため、段差ができるおそれがある等により、相手部材との接触態様を考慮した際には、必ずしも好適とは言えなかった。
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、その目的は、タブ部と相手の雌端子金具との接触圧を確保した上で、タブ部の基端側を増強してその折れ曲がり変形を防止できる雄端子金具を提供するところにある。 By the way, since the tab portion of this type of male terminal fitting has an elongated shape, a bending stress in the thickness direction is generated particularly on the base end of the tab portion when a foreign object hits the tip of the tab portion. However, since the tab portion of the first example has a cross-sectional shape in which the height of one of the side plates constituting the rectangular tube is lowered, there is a hate that the bending strength is insufficient.
On the other hand, in the tab portion of the second example, the bending strength is secured, but the upper surface of the tab portion that contacts the elastic locking piece or the opposing wall in the mating female terminal fitting is not a flat surface but in the middle of the width direction. Since the surface is divided by the above, it may not be preferable when considering the contact mode with the mating member due to the possibility of forming a step.
The present invention has been completed based on the above circumstances, and its purpose is to reinforce the proximal end side of the tab portion while ensuring the contact pressure between the tab portion and the mating female terminal fitting. The present invention is to provide a male terminal fitting that can prevent bending and deformation of the lever.

本発明は、金属板からなる端子素材の一部に設けられた帯状部を幅方向に折り曲げることにより、相手の雌端子金具と嵌合接続されるタブ部が形成された雄端子金具であって、前記タブ部は、基板と、この基板の一方の側縁から前記幅方向と直交する高さ方向に延びて直角に立ち上がり形成された一方の側板と、この一方の側板の立ち上がり端から前記幅方向に延びて前記基板に対して所定間隔を開けた平行姿勢をなして折り重なるように曲げ形成された対向板と、前記基板の他方の側縁から前記高さ方向に延びて直角に立ち上がり形成されてその立ち上がり端が前記高さ方向に向けられた他方の側板と、からなる扁平な角筒形に形成されており、前記タブ部の基端側では、前記対向板の自由側の側縁が前記基板における前記他方の側縁の手前側に留まり、かつこの基板の前記他方の側縁に立ち上がり形成された前記他方の側板の立ち上がり端が、前記対向板の前記自由側の側縁の前方にまで達している断面形状である一方、前記タブ部の先端側では、前記対向板の自由側の側縁が前記基板における前記他方の側縁の位置まで突出し、かつこの基板の前記他方の側縁に立ち上がり形成された前記他方の側板の立ち上がり端が、前記対向板の前記自由側の側縁を受けるべく同自由側の側縁に当接した断面形状となっており、前記タブ部の基端側における前記他方の側板の立ち上がり端縁の前端と、前記タブ部の先端側における前記対向板の自由端縁の後端とが対向して配されているところに特徴を有する。
The present invention is a male terminal fitting in which a tab portion to be fitted and connected to a mating female terminal fitting is formed by bending a band-like portion provided in a part of a terminal material made of a metal plate in the width direction. The tab portion includes a substrate, one side plate extending in a height direction perpendicular to the width direction from one side edge of the substrate and formed to rise at a right angle, and the width from the rising end of the one side plate. And a counter plate that is bent so as to be folded in a parallel posture with a predetermined interval with respect to the substrate, and is formed to rise from the other side edge of the substrate in the height direction at a right angle. And is formed in a flat rectangular tube shape with the other side plate having the rising end directed in the height direction, and on the base end side of the tab portion, the free side edge of the counter plate is Hand on the other side edge of the substrate While the rising end of the other side plate formed on the other side edge of the substrate is formed in a cross-sectional shape that extends to the front of the free side edge of the counter plate, On the distal end side of the tab portion, the free side edge of the counter plate protrudes to the position of the other side edge of the substrate, and the other side plate of the other side plate formed to rise to the other side edge of the substrate. The rising edge has a cross-sectional shape in contact with the side edge on the free side to receive the side edge on the free side of the counter plate, and the rising edge of the other side plate on the base end side of the tab portion And the rear end of the free end edge of the opposing plate on the front end side of the tab portion are arranged to face each other.

タブ部の基端側では、角筒における帯状部の両側縁が突き合わせされて形成される側面側の側板の高さを稼ぐことができることによって、断面係数が大きくなり、曲げに対する強度が高められる。一方、相手の雌端子金具と嵌合接続されるタブ部の先端側では、対向板が一枚の平坦面でかつ同対向板の自由側の側縁が他方の側板で受けられることにより、角筒の潰れ変形も防止される。
相手の雌端子金具との接触圧を確保した上で、タブ部の基端側を増強してその折れ曲がり変形を防止することができる。 On the base end side of the tab portion, the height of the side plate on the side surface formed by abutting the both side edges of the band-shaped portion in the square tube can be increased, so that the section modulus is increased and the strength against bending is increased. On the other hand, at the front end side of the tab portion to be fitted and connected to the mating female terminal fitting, the opposing plate is a flat surface and the free side edge of the opposing plate is received by the other side plate, Crushing deformation of the cylinder is also prevented.
After securing the contact pressure with the mating female terminal fitting, the proximal end side of the tab portion can be strengthened to prevent its bending deformation.

また、以下のような構成としてもよい。
（１）前記タブ部の基端側における前記他方の側板の立ち上がり端の前縁と、前記タブ部の先端側における前記他方の側板の立ち上がり端の後縁との間、及び、前記タブ部の基端側における前記対向板の自由端の前縁と、前記タブ部の先端側における前記対向板の自由端の後縁との間とが、それぞれテーパ縁を介して接続されている。タブ部における基端側の前縁と、先端側の後縁とが段差無く滑らかに繋がった形態となり、同繋ぎ部分での応力集中が回避されて損傷防止に有効となる。 The following configuration may also be used.
(1) Between the front edge of the rising edge of the other side plate on the base end side of the tab portion and the rear edge of the rising edge of the other side plate on the distal end side of the tab portion, and of the tab portion The front edge of the free end of the opposing plate on the base end side and the rear edge of the free end of the opposing plate on the distal end side of the tab portion are connected via a tapered edge. The front edge on the base end side in the tab portion and the rear edge on the front end side are smoothly connected without any step, and stress concentration at the connecting portion is avoided, which is effective for preventing damage.

（２）前記タブ部の先端側における前記対向板の前記自由側の側縁では、前記他方の側板の立ち上がり端が当接する面が叩かれて薄肉化されている。対向板を受けた構造としながらも、他方の側板の高さをより大きく取ることができ、曲げ強度を高めることに有効となる。   (2) At the free side edge of the counter plate at the tip end side of the tab portion, the surface with which the rising edge of the other side plate abuts is struck and thinned. While having the structure of receiving the counter plate, the other side plate can be made larger in height, which is effective in increasing the bending strength.

（３）前記タブ部の基端側における相手の雌端子金具との嵌合領域から外れた領域では、前記基板の前記他方の側縁に立ち上がり形成された前記他方の側板の立ち上がり端が、前記対向板を越えた位置まで突出している。相手の雌端子金具との嵌合を妨げることなく、タブ部の基端側のさらなる増強を図ることができる。   (3) In a region outside the fitting region with the mating female terminal metal fitting on the base end side of the tab portion, the rising end of the other side plate formed rising on the other side edge of the substrate is Projects to a position beyond the opposing plate. Further enhancement of the proximal end side of the tab portion can be achieved without hindering the fitting with the mating female terminal fitting.

本発明の雄端子金具によれば、タブ部と相手の雌端子金具との接触圧を確保した上で、タブ部の基端側を増強してその折れ曲がり変形を防止することができる。   According to the male terminal fitting of the present invention, the contact pressure between the tab portion and the mating female terminal fitting can be ensured, and the proximal end side of the tab portion can be strengthened to prevent its bending deformation.

本発明の実施形態１に係る雄端子金具の斜視図The perspective view of the male terminal metal fitting which concerns on Embodiment 1 of this invention. 雄端子金具の展開形状を示す平面図Plan view showing the unfolded shape of the male terminal fitting その組立後の平面図Plan view after assembly 図１のＡ−Ａ線で切断した斜視断面図1 is a perspective sectional view taken along line AA in FIG. その正面視の断面図Cross section of the front view 図１のＢ−Ｂ線で切断した斜視断面図1 is a cross-sectional perspective view taken along line BB in FIG. その正面視の断面図Cross section of the front view 本発明の実施形態２に係るタブ部の基端で切断した正面視の断面図Sectional drawing of front view cut | disconnected by the base end of the tab part which concerns on Embodiment 2 of this invention

＜実施形態１＞
本発明の実施形態１を図１ないし図７によって説明する。
この実施形態の雄端子金具Ｍは、導電性に優れた金属板をプレス加工することによって形成されており、図１に示すように、本体部１０の後方に、ワイヤバレル１１とインシュレーションバレル１２とが連設されているとともに、本体部１０の前面に、先細りとなった接続部１４を介してタブ部２０が突出形成された構造となっている。
より具体的には、金属板のフープ材がプレス工程を搬送される間に、図２に示す展開形状の端子素材１５が切断形成され、同端子素材１５に対して複数回に亘る曲げ成形が施されることによって、図１及び図３に示す雄端子金具Ｍが組み立て形成される。 <Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
The male terminal fitting M of this embodiment is formed by pressing a metal plate having excellent conductivity. As shown in FIG. 1, a wire barrel 11 and an insulation barrel 12 are provided behind the main body 10. And a tab portion 20 is formed on the front surface of the main body portion 10 so as to protrude through a tapered connection portion 14.
More specifically, the unfolded terminal material 15 shown in FIG. 2 is cut and formed while the metal plate hoop material is transported through the pressing process, and the terminal material 15 is bent a plurality of times. By being applied, the male terminal fitting M shown in FIGS. 1 and 3 is assembled and formed.

本体部１０は、コネクタハウジング（図示せず）のキャビティ内にほぼ緊密に嵌る後面開放の箱形に形成されており、同本体部１０の曲げ形成に伴い、前面の接続部１４が形成される。
ワイヤバレル１１は、電線（図示せず）における芯線の端末にかしめ圧着されるものであって、底板の両側縁から一対のバレル片１１Ａが対向して立ち上がり形成されている。ワイヤバレル１１の内面には、複数条のセレーション１３が形成されている。
インシュレーションバレル１２は、同電線における絶縁被覆の端末にかしめ圧着されるものであって、底板の両側縁から一対のバレル片１２Ａ，１２Ｂが、前後に位置をずらして立ち上がり形成されている。 The main body portion 10 is formed in a box shape with an open rear surface that fits almost tightly into a cavity of a connector housing (not shown), and a front connection portion 14 is formed as the main body portion 10 is bent. .
The wire barrel 11 is caulked and crimped to the end of a core wire in an electric wire (not shown), and a pair of barrel pieces 11A are formed to rise from both side edges of the bottom plate. A plurality of serrations 13 are formed on the inner surface of the wire barrel 11.
The insulation barrel 12 is caulked and crimped to the end of the insulation coating of the electric wire, and a pair of barrel pieces 12A and 12B are formed to rise from the both sides of the bottom plate while shifting their positions back and forth.

続いて、タブ部２０の構造を詳細に説明する。
図２に示す展開形状の端子素材１５において、本体部１０の前面の接続部１４を構成する部分の先に、タブ部２０を構成する帯状部１６が形成されている。この帯状部１６は大まかには、幅方向における正面視の右端から順次に、右側板２１、下面板２２、左側板２３及び上面板２４が並んで形成されている。そして、帯状部１６における下面板２２の左側縁から左側板２３が直角に立ち上がり形成され、この左側板２３の上縁から上面板２４が正面視で右方に向けて直角曲げされて、下面板２２と所定間隔を開けて平行姿勢で対向するように形成されるとともに、下面板２２の右側縁から右側板２１が直角に立ち上がり形成されることによって、扁平な角筒形に形成されている。
なお、下面板２２と上面板２４との先端には、台形状のガイド板２５がそれぞれ連設されており、上記の曲げ形成に伴い、両ガイド板２５が対向しかつその先端縁同士が接触するように曲げ形成されることにより、先細りとなったガイド部２６が形成されている。 Next, the structure of the tab portion 20 will be described in detail.
In the developed terminal material 15 shown in FIG. 2, a band-like portion 16 constituting the tab portion 20 is formed at the tip of the portion constituting the connecting portion 14 on the front surface of the main body portion 10. The belt-like portion 16 is roughly formed with a right side plate 21, a lower side plate 22, a left side plate 23, and an upper side plate 24 arranged in order from the right end of the front view in the width direction. Then, the left side plate 23 is formed at a right angle from the left side edge of the lower surface plate 22 in the belt-like portion 16, and the upper surface plate 24 is bent at a right angle from the upper edge of the left side plate 23 toward the right side when viewed from the front. The right side plate 21 is formed at a right angle from the right side edge of the lower surface plate 22 to form a flat rectangular tube shape.
A trapezoidal guide plate 25 is connected to the tips of the lower surface plate 22 and the upper surface plate 24, and the guide plates 25 are opposed to each other and the leading edges thereof are in contact with each other as a result of the bending. The tapered guide part 26 is formed by being bent as described above.

タブ部２０は、図示しない相手の雌端子金具と嵌合された場合に、同雌端子金具に設けられた接続筒部内に挿入され、タブ部２０のうち先端側が、同接続筒部内に設けられた弾性接触片と、対向した天井壁との間で弾性的に挟持されることにより、電気的な接続が取られるようになっている。
なお、図７に示すように、雌端子金具の接続筒部の天井壁３０には、前後方向に延びた左右２条の接点部３１が突出形成されている。 When the tab portion 20 is fitted to a female terminal fitting (not shown), the tab portion 20 is inserted into a connecting tube portion provided on the female terminal fitting, and the tip side of the tab portion 20 is provided in the connecting tube portion. The elastic contact piece is elastically sandwiched between the opposing ceiling wall, so that an electrical connection is obtained.
As shown in FIG. 7, two left and right contact portions 31 extending in the front-rear direction are formed to project from the ceiling wall 30 of the connecting tube portion of the female terminal fitting.

さて、タブ部２０、詳細には先端のガイド部２６を除いた扁平な角筒形をなす部分は、その全長のうち後側の略１／３の領域が基端部２０Ａと、残りの略２／３の領域が先端部２０Ｂとなっていて、それぞれ断面形状を異にして形成されている。
右側板２１については、基端部２０Ａの右側板２１Ａは、左側板２３と同じ高さとなる寸法に形成されている一方、先端部２０Ｂの右側板２１Ｂは、基端部２０Ａの右側板２１Ａよりも所定寸法（板厚の８０％程度）低くなる寸法に形成されている。基端部２０Ａにおける右側板２１Ａの自由端縁（立ち上がり端縁）の前端と、先端部２０Ｂにおける右側板２１Ａの自由端縁（立ち上がり端縁）の後端とは、先下がりとなったテーパ縁２７で接続されている。 By the way, the tab portion 20, specifically, the flat rectangular tube portion excluding the distal end guide portion 26, the rear side of the substantially one third region is the base end portion 20 </ b> A and the remaining substantially A 2/3 region is the tip portion 20B, and each has a different cross-sectional shape.
Regarding the right side plate 21, the right side plate 21A of the base end portion 20A is formed to have the same height as the left side plate 23, while the right side plate 21B of the distal end portion 20B is more than the right side plate 21A of the base end portion 20A. Is formed to a dimension that is lower by a predetermined dimension (about 80% of the plate thickness). The front end of the free end edge (rising end edge) of the right side plate 21A in the base end part 20A and the rear end of the free end edge (rising end edge) of the right side plate 21A in the front end part 20B are tapered edges that are first lowered. 27.

上面板２４について、基端部２０Ａの上面板２４Ａは、下面板２２の幅よりも小さい幅に形成されている一方、先端部２０Ｂの上面板２４Ｂは、下面板２２の幅と同じ幅に形成されている。ただし、先端部２０Ｂの上面板２４Ｂでは、自由端縁の裏面２８（下面板２２と対向する面）の所定幅領域が、叩かれて薄肉（板厚の８０％程度）とされている。
基端部２０Ａにおける上面板２４Ａの自由端縁の前端と、先端部２０Ｂにおける上面板２４Ｂの自由端縁の後端とは、同じようにテーパ縁２９で接続されている。 Regarding the upper surface plate 24, the upper surface plate 24 </ b> A of the base end portion 20 </ b> A is formed with a width smaller than the width of the lower surface plate 22, while the upper surface plate 24 </ b> B of the distal end portion 20 </ b> B is formed with the same width as the width of the lower surface plate 22. Has been. However, in the upper surface plate 24B of the distal end portion 20B, the predetermined width region of the back surface 28 (the surface facing the lower surface plate 22) of the free edge is struck to be thin (about 80% of the plate thickness).
The front end of the free end edge of the upper surface plate 24A in the base end portion 20A and the rear end of the free end edge of the upper surface plate 24B in the distal end portion 20B are similarly connected by a tapered edge 29.

本実施形態の作用を説明する。
上記のような展開形状を持った端子素材１５が曲げ加工されてタブ部２０が形成されると、タブ部２０全体としては、下面板２２と、この下面板２２の左側縁から直角に立ち上がり形成された左側板２３と、左側板２３の立ち上がり端から下面板２２に対して所定間隔を開けた平行姿勢をなして折り重なるように曲げ形成された上面板２４と、下面板２２の右側縁から直角に立ち上がり形成された右側板２１と、からなる扁平な角筒形に形成される。 The operation of this embodiment will be described.
When the tab material 20 is formed by bending the terminal material 15 having the developed shape as described above, the tab portion 20 as a whole is formed so as to rise perpendicularly from the lower surface plate 22 and the left edge of the lower surface plate 22. The left side plate 23, the top plate 24 bent so as to be folded in a parallel posture with a predetermined interval from the rising edge of the left side plate 23, and the right side edge of the bottom plate 22 The right side plate 21 is formed in a flat rectangular tube shape.

ここで、タブ部２０の基端部２０Ａでは、図４及び図５に示すように、上面板２４Ａの自由端縁（右側縁）が、下面板２２の右側縁よりも手前の左方位置に留まり、かつこの下面板２２の右側縁に立ち上がり形成された右側板２１Ａの立ち上がり端が、上面板２４Ａの右側縁における端面の前方を通って、同右側縁の上面位置にまで達した断面形状となっている。
一方、タブ部２０の先端部２０Ｂでは、図６及び図７に示すように、上面板２４Ｂの自由端縁（右側縁）が、下面板２２の右側縁の位置まで突出し、かつこの下面板２２の右側縁に立ち上がり形成された右側板２１Ｂの立ち上がり端が、上面板２４Ｂの右側縁における薄肉化された裏面２８に当てられている。 Here, in the base end portion 20A of the tab portion 20, as shown in FIGS. 4 and 5, the free end edge (right side edge) of the upper surface plate 24A is located at the left position in front of the right side edge of the lower surface plate 22. A cross-sectional shape in which the rising edge of the right side plate 21A staying and formed on the right side edge of the lower surface plate 22 passes through the front of the end surface of the right side edge of the upper surface plate 24A and reaches the upper surface position of the right side edge; It has become.
On the other hand, at the tip 20B of the tab portion 20, as shown in FIGS. 6 and 7, the free edge (right edge) of the upper surface plate 24B protrudes to the position of the right edge of the lower surface plate 22, and the lower surface plate 22 The rising edge of the right side plate 21B formed at the right side edge of the upper surface 24B is applied to the thinned back surface 28 at the right side edge of the upper surface plate 24B.

上記のような形状に組み付けられた雄端子金具Ｍのタブ部２０によると、その基端部２０Ａでは、角筒における帯状部１６の両側縁が突き合わせされて形成される右側面側において、右側板２１Ａの高さを稼ぐことができることによって、断面係数を大きくでき、結果、曲げに対する強度が高められる。   According to the tab portion 20 of the male terminal fitting M assembled in the shape as described above, at the base end portion 20A, the right side plate is formed on the right side surface formed by abutting both side edges of the band-like portion 16 in the rectangular tube. By being able to earn a height of 21A, the section modulus can be increased, and as a result, the strength against bending is increased.

一方、タブ部２０の先端部２０Ｂは、既述したように相手の雌端子金具の接続筒部に挿入され、同接続筒部内に設けられた弾性接触片と対向した天井壁３０との間で弾性的に挟持され、特に図７に示すように、天井壁３０に突出形成された２条の接点部３１が、タブ部２０の先端部２０Ｂにおける上面板２４Ｂの幅方向の両端部を押圧する形態を採る。
ここでタブ部２０の先端部２０Ｂでは、接点部３１が設けられた天井壁３０と対向した上面板２４Ｂが一枚の平坦面で、かつ上面板２４Ｂの自由端縁（右側縁）が右側板２１Ｂで受けられることにより、角筒の潰れ変形も防止される。
その結果、相手の雌端子金具との接触圧を確保した上で、タブ部２０の基端部２０Ａを増強してその折れ曲がり変形を防止することが可能となる。 On the other hand, the tip portion 20B of the tab portion 20 is inserted into the connecting tube portion of the mating female terminal fitting as described above, and between the ceiling wall 30 facing the elastic contact piece provided in the connecting tube portion. As shown particularly in FIG. 7, the two strip contact portions 31 that are elastically sandwiched and project from the ceiling wall 30 press both end portions in the width direction of the upper surface plate 24 </ b> B at the distal end portion 20 </ b> B of the tab portion 20. Take the form.
Here, at the tip portion 20B of the tab portion 20, the upper surface plate 24B facing the ceiling wall 30 provided with the contact portion 31 is a single flat surface, and the free edge (right edge) of the upper surface plate 24B is the right side plate. By being received by 21B, crushing deformation of the square tube is also prevented.
As a result, after securing the contact pressure with the mating female terminal fitting, it is possible to reinforce the base end portion 20A of the tab portion 20 and prevent its bending deformation.

また、この実施形態では、基端部２０Ａにおける右側板２１Ａの自由端縁の前端と、先端部２０Ｂにおける右側板２１Ｂの自由端縁の後端との間、また、基端部２０Ａにおける上面板２４Ａの自由端縁の前端と、先端部２０Ｂにおける上面板２４Ｂの自由端縁の後端との間が、ともにテーパ縁２７，２９で接続されており、端的には、タブ部２０における基端部２０Ａの前縁と、先端部２０Ｂの後縁とが段差無く滑らかに繋がった形態に形成されているから、繋ぎ部分での応力集中が回避されて損傷防止に有効となる。   Further, in this embodiment, the front plate of the free end edge of the right side plate 21A at the base end portion 20A and the rear end of the free end edge of the right side plate 21B at the tip end portion 20B, and the upper surface plate at the base end portion 20A. The front end of the free end edge of 24A and the rear end of the free end edge of the upper surface plate 24B in the front end portion 20B are both connected by taper edges 27 and 29. Since the front edge of the portion 20A and the rear edge of the tip portion 20B are smoothly connected without any step, stress concentration at the connecting portion is avoided and effective in preventing damage.

さらに、タブ部２０の先端部２０Ｂにおける上面板２４Ｂの自由端縁（右側縁）では、右側板２１の立ち上がり端が当接する裏面２８が叩かれて薄肉化されている。これにより、上面板２４Ｂを受けた構造としながらも、右側板２１Ｂの高さを極力大きく取ることができ、先端部２０Ｂにおける曲げ強度を高めることに有効となる。   Further, at the free end edge (right side edge) of the upper surface plate 24B at the distal end portion 20B of the tab portion 20, the back surface 28 with which the rising end of the right side plate 21 abuts is hit and thinned. Thereby, while having the structure which received the upper surface board 24B, the height of the right side board 21B can be taken as much as possible, and it becomes effective in raising the bending strength in the front-end | tip part 20B.

＜実施形態２＞
図８は、本発明の実施形態２を示す。
雄端子金具Ｍ１のタブ部２０が、相手の雌端子金具の接続筒部内に挿入されて電気的な接続が図られるに際して、タブ部２０が実際に接続筒部内に挿入されるのは、タブ部２０の先端部２０Ｂから、基端部２０Ａのうち前端側の所定長さ領域に亘ってのみである。
そこで実施形態２では、タブ部２０の基端部における相手の雌端子金具の接続筒部との嵌合領域から外れた後端側の領域では、図８に示すように、下面板２２の右側縁に立ち上がり形成された右側板４０の立ち上がり端が、上面板２４Ａを越えてさらに上方まで突出したさらに背の高い形状に形成されている。
この実施形態２の構造によれば、相手の雌端子金具との嵌合接続を妨げることなく、タブ部２０の基端部２０Ａのさらなる増強を図ることができる。 <Embodiment 2>
FIG. 8 shows a second embodiment of the present invention.
When the tab portion 20 of the male terminal fitting M1 is inserted into the connecting tube portion of the mating female terminal fitting for electrical connection, the tab portion 20 is actually inserted into the connecting tube portion. 20 only from the front end portion 20B to a predetermined length region on the front end side of the base end portion 20A.
Therefore, in the second embodiment, in the rear end region outside the fitting region with the connecting tube portion of the mating female terminal fitting at the base end portion of the tab portion 20, as shown in FIG. The rising edge of the right side plate 40 rising at the edge is formed in a taller shape that protrudes further upward beyond the upper surface plate 24A.
According to the structure of this Embodiment 2, the further reinforcement | strengthening of 20 A of base end parts of the tab part 20 can be aimed at, without preventing fitting connection with the other party's female terminal metal fitting.

＜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、端子素材の帯状部を角筒形に曲げ形成してタブ部を形成する場合における角筒の断面の繋ぎ部分が、正面視で右上角である場合を例示したが、同繋ぎの部分が、正面視で左上角であったり、左下又は右下の角であってもよい。
（２）タブ部における先端部は、相手の雌端子金具と実際に嵌合接続されるように機能する部分であって、断面形状を互いに異にする先端部と基端部との長さの比率は、上記実施形態に例示したものに限らず、端子金具全体の形状等の条件に応じて任意に設定することができる。 <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 case where the connecting portion of the cross section of the square tube in the case of forming the tab portion by bending the band-shaped portion of the terminal material into the rectangular tube shape is the upper right corner when viewed from the front. The connected portion may be the upper left corner in front view, or the lower left or lower right corner.
(2) The tip portion of the tab portion is a portion that functions so as to be actually fitted and connected to the mating female terminal fitting, and the length of the tip portion and the base end portion having different cross-sectional shapes. The ratio is not limited to that exemplified in the above embodiment, and can be arbitrarily set according to conditions such as the shape of the entire terminal fitting.

（３）上記実施形態では、タブ部の先端側における上面板の自由端縁の裏面を薄肉化したのであるが、薄肉化することは割愛しても良く、そのようなものも本発明の技術的範囲に含まれる。
（４）上記実施形態では、相手の雌端子金具の接続筒部内に接点部が２条設けられている場合を例示したが、同接点部は、例えば幅広のものが１条である等、他の構造としてもよい。 (3) In the above embodiment, the back surface of the free edge of the upper surface plate on the tip side of the tab portion is thinned. However, the thinning may be omitted, and such a technique is also applicable to the technology of the present invention. Included in the scope.
(4) In the above-described embodiment, the case where two contact portions are provided in the connection cylinder portion of the mating female terminal fitting is exemplified. However, for example, the width of the contact portion is one such as a wide one. It is good also as a structure of.

Ｍ，Ｍ１…雄端子金具
１５…端子素材
１６…帯状部
２０…タブ部
２０Ａ…基端部
２０Ｂ…先端部
２１，２１Ａ，２１Ｂ…右側板（他方の側板）
２２…下面板（基板）
２３…左側板（一方の側板）
２４，２４Ａ，２４Ｂ…上面板（対向板）
２７…テーパ縁
２８…（上面板２４Ｂの自由端縁の）裏面
２９…テーパ縁
４０…右側板（他方の側板） M, M1 ... male terminal fitting 15 ... terminal material 16 ... strip-like part 20 ... tab part 20A ... base end part 20B ... tip part 21, 21A, 21B ... right side plate (the other side plate)
22 ... Bottom plate (substrate)
23 ... Left side plate (one side plate)
24, 24A, 24B ... Top plate (opposite plate)
27 ... Taper edge 28 ... Back surface (of the free edge of the upper surface plate 24B) 29 ... Taper edge 40 ... Right side plate (the other side plate)

Claims (4)

金属板からなる端子素材の一部に設けられた帯状部を幅方向に折り曲げることにより、相手の雌端子金具と嵌合接続されるタブ部が形成された雄端子金具であって、
前記タブ部は、基板と、この基板の一方の側縁から前記幅方向と直交する高さ方向に延びて直角に立ち上がり形成された一方の側板と、この一方の側板の立ち上がり端から前記幅方向に延びて前記基板に対して所定間隔を開けた平行姿勢をなして折り重なるように曲げ形成された対向板と、前記基板の他方の側縁から前記高さ方向に延びて直角に立ち上がり形成されてその立ち上がり端が前記高さ方向に向けられた他方の側板と、からなる扁平な角筒形に形成されており、
前記タブ部の基端側では、前記対向板の自由側の側縁が前記基板における前記他方の側縁の手前側に留まり、かつこの基板の前記他方の側縁に立ち上がり形成された前記他方の側板の立ち上がり端が、前記対向板の前記自由側の側縁の前方にまで達している断面形状である一方、
前記タブ部の先端側では、前記対向板の自由側の側縁が前記基板における前記他方の側縁の位置まで突出し、かつこの基板の前記他方の側縁に立ち上がり形成された前記他方の側板の立ち上がり端が、前記対向板の前記自由側の側縁を受けるべく同自由側の側縁に当接した断面形状となっており、
前記タブ部の基端側における前記他方の側板の立ち上がり端縁の前端と、前記タブ部の先端側における前記対向板の自由端縁の後端とが対向して配されていることを特徴とする雄端子金具。 A male terminal fitting in which a tab portion to be fitted and connected to a mating female terminal fitting is formed by bending a band-like portion provided in a part of a terminal material made of a metal plate in the width direction,
The tab portion includes a substrate, one side plate formed in a vertical direction extending in a height direction perpendicular to the width direction from one side edge of the substrate, and the width direction from the rising end of the one side plate. to extend the opposing plate formed bent so as folds in parallel with posture at predetermined intervals with respect to the substrate, is at right angles rising formed to extend in the height direction from the other side edge of said substrate The rising end is formed in a flat rectangular tube shape composed of the other side plate directed in the height direction ,
On the base end side of the tab portion, the side edge on the free side of the counter plate remains on the near side of the other side edge of the substrate, and the other side edge of the substrate is formed to rise. While the rising edge of the side plate has a cross-sectional shape reaching the front of the free side edge of the counter plate,
On the distal end side of the tab portion, the free side edge of the counter plate protrudes to the position of the other side edge of the substrate, and the other side plate of the other side plate formed to rise to the other side edge of the substrate. The rising end has a cross-sectional shape in contact with the free side edge to receive the free side edge of the counter plate ,
The front end of the rising edge of the other side plate on the base end side of the tab portion and the rear end of the free end edge of the counter plate on the distal end side of the tab portion are arranged to face each other. Male terminal fitting. 前記タブ部の基端側における前記他方の側板の立ち上がり端の前縁と、前記タブ部の先端側における前記他方の側板の立ち上がり端の後縁との間、及び、前記タブ部の基端側における前記対向板の自由端の前縁と、前記タブ部の先端側における前記対向板の自由端の後縁との間とが、それぞれテーパ縁を介して接続されていることを特徴とする請求項１記載の雄端子金具。   Between the leading edge of the rising end of the other side plate on the proximal end side of the tab portion and the trailing edge of the rising end of the other side plate on the distal end side of the tab portion, and the proximal end side of the tab portion The front edge of the free end of the counter plate in the head and the rear edge of the free end of the counter plate on the front end side of the tab portion are respectively connected via a taper edge. Item 1. The male terminal fitting according to Item 1. 前記タブ部の先端側における前記対向板の前記自由側の側縁では、前記他方の側板の立ち上がり端が当接する面が叩かれて薄肉化されていることを特徴とする請求項１または請求項２記載の雄端子金具。   The surface of the free side of the opposing plate on the tip side of the tab portion is thinned by hitting the surface with which the rising edge of the other side plate abuts. 2. The male terminal fitting according to 2. 前記タブ部の基端側における相手の雌端子金具との嵌合領域から外れた領域では、前記基板の前記他方の側縁に立ち上がり形成された前記他方の側板の立ち上がり端が、前記対向板を越えた位置まで突出していることを特徴とする請求項１ないし請求項３のいずれか一項に記載の雄端子金具。   In a region outside the fitting region with the mating female terminal fitting on the base end side of the tab portion, the rising end of the other side plate formed rising on the other side edge of the substrate The male terminal fitting according to any one of claims 1 to 3, wherein the male terminal fitting protrudes to a position beyond it.
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