JP5737112B2 - Terminal fitting - Google Patents

Terminal fitting Download PDF

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Publication number
JP5737112B2
JP5737112B2 JP2011212626A JP2011212626A JP5737112B2 JP 5737112 B2 JP5737112 B2 JP 5737112B2 JP 2011212626 A JP2011212626 A JP 2011212626A JP 2011212626 A JP2011212626 A JP 2011212626A JP 5737112 B2 JP5737112 B2 JP 5737112B2
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Prior art keywords
elastic
elastic contact
piece
contact piece
rectangular tube
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Expired - Fee Related
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JP2011212626A
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JP2013073817A (en
Inventor
伊藤　智哉
智哉 伊藤
真治 飯星
真治 飯星
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2011212626A priority Critical patent/JP5737112B2/en
Priority to DE102012017949A priority patent/DE102012017949A1/en
Priority to EP12006393.8A priority patent/EP2575215B1/en
Priority to US13/629,987 priority patent/US8795007B2/en
Publication of JP2013073817A publication Critical patent/JP2013073817A/en
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Publication of JP5737112B2 publication Critical patent/JP5737112B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/434—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by separate resilient locking means on contact member, e.g. retainer collar or ring around contact member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion

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  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

本発明は、端子金具に関するものである。   The present invention relates to a terminal fitting.

特許文献１には、タブが挿入される角筒部内に、タブの挿入方向に沿うように延出する弾性接触片を収容し、角筒部内に挿入された板状のタブを、弾性変形した弾性接触片と、角筒部を構成する受圧壁部との間で挟み付けることで、導通可能に接続させるようにした雌形の端子金具が開示されている。   In Patent Document 1, an elastic contact piece extending along the insertion direction of the tab is accommodated in the rectangular tube portion into which the tab is inserted, and the plate-like tab inserted into the rectangular tube portion is elastically deformed. There is disclosed a female terminal fitting that is sandwiched between an elastic contact piece and a pressure receiving wall portion that constitutes a rectangular tube portion so as to be conductively connected.

特開２００３−０４５５３６号公報JP 2003-045536 A

上記の端子金具が振動や衝撃を受けると、弾性接触片が、幅方向両側縁の間で高低差が生じるような姿勢の傾きを生じる虞がある。弾性接触片が傾くと、タブとの間に隙間が生じて、接触状態が不安定になるため、対策が望まれる。
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、弾性接触片の姿勢の傾きを防止することを目的とする。 When the terminal fitting is subjected to vibration or impact, there is a risk that the elastic contact piece may be inclined such that a difference in height occurs between both side edges in the width direction. When the elastic contact piece is tilted, a gap is formed between the elastic contact piece and the contact state becomes unstable, so a countermeasure is desired.
The present invention has been completed based on the above situation, and an object thereof is to prevent the inclination of the posture of the elastic contact piece.

上記の目的を達成するための手段として、請求項１の発明は、前方からタブが挿入される角筒部と、前記角筒部内において前記タブの挿入方向に沿うように延出し、前記角筒部に挿入された前記タブに対し弾性撓みした状態で接触する弾性接触片と、前記弾性接触片の幅方向における両側縁から延出し、前記角筒部の内壁面に対し弾性的に当接可能な一対の弾性片とを備え、前記弾性接触片とは別体の部品であって、前記弾性接触片を包囲して前記角筒部を構成するシェルを有し、前記弾性接触片は、前記シェルが外嵌する支持部から延出するものとされ、前記シェルには、前記弾性片の延出端を弾性的に突き当てることで、前記弾性片がその延出方向へ変位するのを規制する規制部が備えられているところに特徴を有する。 As means for achieving the above object, the invention according to claim 1 is characterized in that a rectangular tube portion into which a tab is inserted from the front, and the rectangular tube portion extends in the insertion direction of the tab in the rectangular tube portion, An elastic contact piece that comes into contact with the tab inserted into the part in an elastically deformed state, and extends from both side edges in the width direction of the elastic contact piece, and can elastically contact the inner wall surface of the rectangular tube part A pair of elastic pieces, separate from the elastic contact pieces, and having a shell that surrounds the elastic contact pieces and forms the rectangular tube portion, The shell extends from a support portion to which the shell is fitted, and the elastic piece is elastically abutted against the shell to restrict the elastic piece from being displaced in the extending direction. It is characterized in that a restricting portion is provided .

請求項２の発明は、請求項１に記載のものにおいて、前記弾性接触片が、前記角筒部を構成する支持壁部から延出しており、前記弾性片が、前記弾性接触片の基端部から延出しているところに特徴を有する。   According to a second aspect of the present invention, in the first aspect of the present invention, the elastic contact piece extends from a support wall portion constituting the rectangular tube portion, and the elastic piece is a base end of the elastic contact piece. It is characterized by extending from the part.

＜請求項１の発明＞
弾性接触片に姿勢を傾けるような外力が作用しても、一対の弾性片が角筒部の内壁面に弾性的に当接するので、弾性接触片の姿勢の傾きが防止される。
また、角筒部の全体を、弾性接触片と一体に形成する場合、角筒部と弾性接触片が、夫々、相手側に対して設計上の制約を生じさせることが懸念される。その点、本発明は、弾性接触片とは別体のシェルを用いて角筒部を構成しているので、弾性接触片と角筒部を設計する際の自由度が高い。
また、タブが角筒部に挿入されて弾性接触片に弾性接触する過程で、弾性片が規制部に突き当たると、それ以降は、弾性片の弾性撓み量が増大するので、弾性片の弾性復元力による傾き防止効果が高くなる。 <Invention of Claim 1>
Even if an external force that tilts the posture of the elastic contact piece is applied, the pair of elastic pieces elastically contact the inner wall surface of the rectangular tube portion, so that the posture of the elastic contact piece is prevented from being inclined.
In addition, when the entire rectangular tube portion is formed integrally with the elastic contact piece, there is a concern that the rectangular tube portion and the elastic contact piece may cause design restrictions on the counterpart side. In that respect, the present invention has a high degree of freedom in designing the elastic contact piece and the square tube portion because the square tube portion is configured using a shell separate from the elastic contact piece.
In addition, when the elastic piece hits the restricting portion in the process in which the tab is inserted into the rectangular tube portion and elastically contacts the elastic contact piece, the elastic deflection amount of the elastic piece increases thereafter. Tilt prevention effect by force increases.

＜請求項２の発明＞
支持壁部は、角筒部を構成するものなので剛性が高く、変形し難い。したがって、この支持壁部に繋がる弾性接触片の基端部も、傾き変形を生じ難い。しかも、この弾性接触片の基端部は、弾性片によって補強されているので、弾性接触片の基端部の剛性が高められている。これにより、弾性接触片の姿勢の傾きが確実に防止される。 <Invention of Claim 2>
Since the support wall portion constitutes a rectangular tube portion, the support wall portion has high rigidity and is difficult to be deformed. Therefore, the base end portion of the elastic contact piece connected to the support wall portion is also less likely to be inclined. Moreover, since the base end portion of the elastic contact piece is reinforced by the elastic piece, the rigidity of the base end portion of the elastic contact piece is enhanced. Thereby, the inclination | tilt of the attitude | position of an elastic contact piece is prevented reliably.

実施形態１の端子金具正面図Front view of terminal fitting of Embodiment 1 端子本体の正面図Front view of terminal body シェルの正面図Shell front view 図１のＡ−Ａ線断面図AA line sectional view of FIG. 角筒部にタブを挿入し始めた状態をあらわすＡ−Ａ線断面図AA line sectional view showing a state in which a tab has started to be inserted into a rectangular tube portion タブの挿入が進んで、弾性片の延出端が規制部に突き当たった状態をあらわすＡ−Ａ線断面図AA line sectional view showing a state in which the insertion of the tab has progressed and the extended end of the elastic piece hits the restricting portion タブの挿入が完了した状態をあらわすＡ−Ａ線断面図A-A line sectional view showing a state where the insertion of the tab is completed 端子本体の平面図Top view of terminal body 図２のＢ−Ｂ線断面図BB sectional view of FIG. シェルの平面図Shell top view 図３のＣ−Ｃ線断面図CC sectional view of FIG. 実施形態２の端子金具の斜視図The perspective view of the terminal metal fitting of Embodiment 2. 端子金具の側面図Side view of terminal fitting 図１３のＤ−Ｄ線断面図DD sectional view of FIG. 図１３のＥ−Ｅ線断面図EE sectional view of FIG. タブが角筒部に挿入された状態をあらわすＥ−Ｅ線断面図EE sectional view showing a state where the tab is inserted into the rectangular tube portion 参考例の端子金具の断面図Sectional view of the reference terminal fitting 参考例の端子本体の断面図Sectional view of the reference terminal body

＜実施形態１＞
以下、本発明を具体化した実施形態１を図１〜図１１を参照して説明する。本実施形態１の端子金具１０は、図４〜７に示すように、互いに別体の部品である端子本体１１とシェル１２を組み付けることで、全体として前後方向に細長い形状に構成されている。端子金具１０の前後方向における前端側の略半分領域は、前方から雄側端子のタブＴを挿入させるための角筒部１３となっており、角筒部１３の内部には、タブＴに弾性的に接触する弾性接触片１４が収容されている。端子金具１０の後端側の略半分領域は、電線を圧着により接続するためのオープンバレル状の電線圧着部１５となっている。 <Embodiment 1>
A first embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 4 to 7, the terminal fitting 10 according to the first embodiment is configured to have an elongated shape in the front-rear direction as a whole by assembling a terminal main body 11 and a shell 12 which are separate parts. A substantially half region on the front end side in the front-rear direction of the terminal fitting 10 is a rectangular tube portion 13 for inserting the tab T of the male terminal from the front. The rectangular tube portion 13 is elastic to the tab T. The elastic contact piece 14 that comes into contact is accommodated. A substantially half region on the rear end side of the terminal fitting 10 is an open barrel-shaped wire crimping portion 15 for connecting wires by crimping.

端子本体１１は、所定形状に打ち抜いた金属板材に曲げ加工等を施して成形されたものである。図２，４，８，９に示すように、端子本体１１の前端側領域は、角筒部１３を構成する箱状支持部１６となっており、端子本体１１の後端側領域は電線圧着部１５となっている。箱状支持部１６は、下壁部１７（本発明の構成要件である支持壁部）と、下壁部１７の左右両側縁から略直角に立ち上がる一対の側壁部１８と、一方の側壁部１８の上端縁から略直角に延出する上壁部１９（本発明の構成要件である支持壁部）とを備えて角筒状に形成されている。   The terminal body 11 is formed by bending a metal plate material punched into a predetermined shape. As shown in FIGS. 2, 4, 8, and 9, the front end side region of the terminal body 11 is a box-like support portion 16 that constitutes the rectangular tube portion 13, and the rear end side region of the terminal body 11 is wire crimping. It is part 15. The box-shaped support portion 16 includes a lower wall portion 17 (a support wall portion that is a constituent element of the present invention), a pair of side wall portions 18 that rise substantially at right angles from the left and right side edges of the lower wall portion 17, and one side wall portion 18. And an upper wall portion 19 (a supporting wall portion, which is a constituent element of the present invention) extending substantially at a right angle from the upper end edge of the rectangular shape.

図２，４，８，９に示すように、箱状支持部１６の前端部は、全周に亘って連続することによって剛性が高められた前側枠状部２０となっており、図４，８，９に示すように、箱状支持部１６の後端部は、全周に亘って連続することによって剛性が高められた後側枠状部２１となっている。左右両側壁部１８は、全領域に亘って切り起こしや叩き出しや穿孔等の加工が施されていない平板状をなしている。   As shown in FIGS. 2, 4, 8, and 9, the front end portion of the box-shaped support portion 16 is a front frame-like portion 20 whose rigidity is increased by being continuous over the entire circumference. As shown in FIGS. 8 and 9, the rear end portion of the box-like support portion 16 is a rear side frame-like portion 21 whose rigidity is increased by being continuous over the entire circumference. The left and right side wall portions 18 have a flat plate shape that is not cut, raised, punched, or perforated over the entire region.

図４から９に示すように、下壁部１７と上壁部１９には、上下対称な一対の弾性接触片１４が、切り起こすことによって形成されている。前後方向における弾性接触片１４の切り起こし領域は、前側枠状部２０の後端から、後側枠状部２１の前端に至る範囲である。そして、弾性接触片１４は、前側枠状部２０から後方へ片持ち状に延出した形態である。つまり、弾性接触片１４の基端部１４Ｆは前側枠状部２０に、直接、繋がっている。図４〜７に示すように、弾性接触片１４の側方（角筒部１３に対するタブＴの挿入方向、及び一対の弾性接触片１４が対向する上下方向の両方向に対して交差する方向）から視た形状は、互いに相手側の弾性接触片１４に向かって膨らむように湾曲している。そして、両弾性接触片１４の対向間隔（上下間隔）が最も狭い部分は、タブＴとの接点部２２となっている。   As shown in FIGS. 4 to 9, a pair of vertically symmetrical elastic contact pieces 14 are formed on the lower wall portion 17 and the upper wall portion 19 by cutting up. The cut-and-raised region of the elastic contact piece 14 in the front-rear direction is a range from the rear end of the front frame portion 20 to the front end of the rear frame portion 21. And the elastic contact piece 14 is the form extended in the cantilever shape from the front side frame-shaped part 20 back. That is, the base end portion 14 </ b> F of the elastic contact piece 14 is directly connected to the front frame portion 20. As shown in FIGS. 4 to 7, from the side of the elastic contact piece 14 (the direction in which the tab T is inserted into the rectangular tube portion 13 and the direction in which the pair of elastic contact pieces 14 face each other in the vertical direction). The viewed shapes are curved so as to swell toward the opposing elastic contact piece 14. And the part where the opposing space | interval (up-and-down space | interval) of both the elastic contact pieces 14 is the narrowest becomes the contact part 22 with the tab T. FIG.

図２，８に示すように、幅方向における弾性接触片１４の形成領域は、下壁部１７及び上壁部１９の中央部分である。また、図８に示すように、弾性接触片１４の基端部１４Ｆは、それよりも後方の領域に比べて幅広となっており、この幅広の部分は、幅方向へ突出した左右対称な一対の突出部２３となっている。そして、下壁部１７と上壁部１９には、夫々、一対の突出部２３（弾性接触片１４の基端部１４Ｆ）から後方へ片持ち状に延出した形態の一対の弾性片２４が形成されている。各弾性接触片１４に形成された一対の弾性片２４は、左右対称である。また、下壁部１７の弾性片２４と上壁部１９の弾性片２４は、上下対称である。前後方向における弾性片２４の長さ寸法は、弾性接触片１４の長さよりも短い。また、弾性片２４の後端（延出端）は、接点部２２よりも後方に位置する。側方から視た弾性片２４の形状は、相手側の弾性片２４に向かって膨らむように湾曲している。   As shown in FIGS. 2 and 8, the formation region of the elastic contact piece 14 in the width direction is a central portion of the lower wall portion 17 and the upper wall portion 19. Further, as shown in FIG. 8, the base end portion 14F of the elastic contact piece 14 is wider than the region behind it, and the wide portion is a pair of symmetrical left and right protruding in the width direction. It is the protrusion part 23 of this. Each of the lower wall portion 17 and the upper wall portion 19 has a pair of elastic pieces 24 extending in a cantilevered manner from the pair of protruding portions 23 (the base end portions 14F of the elastic contact pieces 14). Is formed. The pair of elastic pieces 24 formed on each elastic contact piece 14 is symmetrical. The elastic piece 24 of the lower wall portion 17 and the elastic piece 24 of the upper wall portion 19 are vertically symmetric. The length of the elastic piece 24 in the front-rear direction is shorter than the length of the elastic contact piece 14. Further, the rear end (extending end) of the elastic piece 24 is located behind the contact portion 22. The shape of the elastic piece 24 as viewed from the side is curved so as to swell toward the opposite elastic piece 24.

図３，１０，１１に示すように、シェル１２は、下板部２５と、下板部２５の左右両側縁から略直角に立ち上がる一対の側板部２６と、一方の側板部２６の上端縁から略直角に延出する上板部２７とを備えて構成されている。下板部２５と上板部２７には、夫々、シェル１２の内部に向かって斜め前方へ片持ち状に延出する形態の左右一対の規制部２８が、切り起こしによって形成されている。対をなす規制部２８は、互いに左右対称である。また、下板部２５の弾性片２４と上板部２７の弾性片２４とは、互いに上下対称である。   As shown in FIGS. 3, 10, and 11, the shell 12 includes a lower plate portion 25, a pair of side plate portions 26 that rise substantially at right angles from left and right side edges of the lower plate portion 25, and an upper end edge of one side plate portion 26. And an upper plate portion 27 extending substantially at a right angle. Each of the lower plate portion 25 and the upper plate portion 27 is formed with a pair of left and right restricting portions 28 that are cantilevered obliquely forward toward the inside of the shell 12 by cutting and raising. The pair of regulating portions 28 are symmetrical with each other. Further, the elastic piece 24 of the lower plate portion 25 and the elastic piece 24 of the upper plate portion 27 are vertically symmetrical with each other.

図４〜７に示すように、シェル１２は、端子本体１１に対して箱状支持部１６に外嵌するように組み付けられている。シェル１２を組み付けた状態では、シェル１２と箱状支持部１６によって角筒部１３が構成されている。下板部２５と下壁部１７は、概ね面当たりするように重なり、左右両側板部２６と左右両側壁部１８も、概ね面当たりするように重なり、上板部２７と上壁部１９も、概ね面当たりするように重なっている。   As shown in FIGS. 4 to 7, the shell 12 is assembled to the terminal body 11 so as to be fitted on the box-shaped support portion 16. In the state where the shell 12 is assembled, the square tube portion 13 is constituted by the shell 12 and the box-shaped support portion 16. The lower plate portion 25 and the lower wall portion 17 are overlapped so as to be substantially in contact with each other, and the left and right side plate portions 26 and the left and right side wall portions 18 are also overlapped so as to be substantially in contact with each other. , Almost overlapping so as to touch each other.

図４〜７に示すように、弾性接触片１４の後端（延出端）は、上下方向においては、上板部２７の内面又は下板部２５の内面に対して、当接、又は接近して対向するように位置している。弾性片２４の後端（延出端）は、上下方向においては、上板部２７の内面又は下板部２５の内面に対して、当接、又は接近して対向するように位置している。また、図４に示すように、弾性片２４の後端（延出端）は、前後方向においては、規制部２８の前端（延出端）に対して前方から間隔を空けて対向している。   As shown in FIGS. 4 to 7, the rear end (extending end) of the elastic contact piece 14 abuts or approaches the inner surface of the upper plate portion 27 or the inner surface of the lower plate portion 25 in the vertical direction. And are located so as to face each other. The rear end (extending end) of the elastic piece 24 is positioned so as to contact or approach the inner surface of the upper plate portion 27 or the lower plate portion 25 in the vertical direction. . As shown in FIG. 4, the rear end (extending end) of the elastic piece 24 faces the front end (extending end) of the restricting portion 28 with a space from the front in the front-rear direction. .

次に、本実施形態１の作用を説明する。角筒部１３にタブＴを挿入する過程では、図５に示すように、タブＴが上下両弾性接触片１４の隙間に割り込むことにより、両弾性接触片１４が、その接点部２２を斜め後方へ変位させながら、上下に離間するように弾性変形する。この弾性接触片１４の弾性変形に伴い、弾性片２４が、その延出端を上板部２７又は下板部２５に当接させた状態で、上下に離間するように弾性変形するとともに、弾性片２４の延出端が上板部２７又は下板部２５に摺接しながら後方へ変位する。   Next, the operation of the first embodiment will be described. In the process of inserting the tab T into the rectangular tube portion 13, as shown in FIG. 5, the tab T cuts into the gap between the upper and lower elastic contact pieces 14, so that the elastic contact pieces 14 move the contact portions 22 obliquely backward. It is elastically deformed so as to be spaced apart up and down while being displaced. Along with the elastic deformation of the elastic contact piece 14, the elastic piece 24 is elastically deformed so as to be spaced apart in the vertical direction with its extended end in contact with the upper plate portion 27 or the lower plate portion 25, and elastic. The extended end of the piece 24 is displaced rearward while being in sliding contact with the upper plate portion 27 or the lower plate portion 25.

そして、タブＴの挿入が進むと、図６に示すように、弾性片２４の延出端が規制部２８の前端に突き当たり、それ以降は、タブＴの挿入と弾性接触片１４の弾性変形が進んでも、弾性片２４の延出端は後方へ変位できなくなる。したがって、タブＴの挿入と弾性接触片１４の弾性変形が進むのに伴い、弾性片２４の弾性変形量及びその弾性復元力が増大する。そして、図７に示すように、タブＴの挿入動作が完了すると、弾性片２４の弾性変形量と弾性復元力が最大となる。   When the insertion of the tab T proceeds, as shown in FIG. 6, the extended end of the elastic piece 24 hits the front end of the restricting portion 28, and thereafter, the insertion of the tab T and the elastic contact piece 14 are elastically deformed. Even if it advances, the extended end of the elastic piece 24 cannot be displaced backward. Therefore, as the insertion of the tab T and the elastic deformation of the elastic contact piece 14 proceed, the amount of elastic deformation of the elastic piece 24 and its elastic restoring force increase. As shown in FIG. 7, when the insertion operation of the tab T is completed, the elastic deformation amount and the elastic restoring force of the elastic piece 24 are maximized.

本実施形態１の端子金具１０は、前方からタブＴが挿入される角筒部１３と、角筒部１３内においてタブＴの挿入方向に沿うように延出し、角筒部１３に挿入されたタブＴに対し弾性撓みした状態で接触する弾性接触片１４とを備えているが、このような端子金具１０の場合、端子金具１０が振動や衝撃を受けたときに、弾性接触片１４が、幅方向両側縁の間で高低差が生じるような姿勢の傾きを生じ、その結果、タブＴとの間に隙間が生じて、接触状態が不安定になることが懸念される。   The terminal fitting 10 of the present embodiment 1 is inserted into the rectangular tube portion 13 so as to extend along the insertion direction of the tab T in the rectangular tube portion 13 and the rectangular tube portion 13 into which the tab T is inserted from the front. In the case of such a terminal fitting 10, when the terminal fitting 10 is subjected to vibration or impact, the elastic contact piece 14 is There is a concern that an inclination of the posture that causes a height difference between both side edges in the width direction is generated, and as a result, a gap is generated between the tab T and the contact state becomes unstable.

しかし、本実施形態１の端子金具１０は、弾性接触片１４の幅方向における両側縁から延出し、角筒部１３の内壁面に対し弾性的に当接可能な一対の弾性片２４を備えている。したがって、弾性接触片１４に姿勢を傾けるような外力が作用しても、一対の弾性片２４が角筒部１３の内壁面（上板部２７又は下板部２５の内面）に弾性的に当接するので、弾性接触片１４の姿勢の傾きが防止される。   However, the terminal fitting 10 of the first embodiment includes a pair of elastic pieces 24 that extend from both side edges in the width direction of the elastic contact piece 14 and can elastically contact the inner wall surface of the rectangular tube portion 13. Yes. Therefore, even if an external force that tilts the posture is applied to the elastic contact piece 14, the pair of elastic pieces 24 is elastically applied to the inner wall surface of the square tube portion 13 (the inner surface of the upper plate portion 27 or the lower plate portion 25). As a result, the posture of the elastic contact piece 14 is prevented from tilting.

また、弾性接触片１４は、角筒部１３を構成する下壁部１７と上壁部１９から延出しており、弾性片２４が、弾性接触片１４の基端部１４Ｆから延出している。下壁部１７と上壁部１９は、角筒部１３を構成するものなので剛性が高く、変形し難い。したがって、この下壁部１７や上壁部１９に繋がる弾性接触片１４の基端部１４Ｆも、傾き変形を生じ難い。しかも、この弾性接触片１４の基端部１４Ｆは、弾性片２４によって補強されているので、弾性接触片１４の基端部１４Ｆの剛性が高められている。これにより、弾性接触片１４の姿勢の傾きが確実に防止される。   Further, the elastic contact piece 14 extends from the lower wall portion 17 and the upper wall portion 19 constituting the rectangular tube portion 13, and the elastic piece 24 extends from the base end portion 14 </ b> F of the elastic contact piece 14. Since the lower wall portion 17 and the upper wall portion 19 constitute the rectangular tube portion 13, the rigidity is high and the deformation is difficult. Accordingly, the base end portion 14F of the elastic contact piece 14 connected to the lower wall portion 17 and the upper wall portion 19 is also less likely to be inclined. Moreover, since the base end portion 14F of the elastic contact piece 14 is reinforced by the elastic piece 24, the rigidity of the base end portion 14F of the elastic contact piece 14 is enhanced. Thereby, the inclination of the attitude | position of the elastic contact piece 14 is prevented reliably.

さらに、端子金具１０は、角筒部１３に形成されて、弾性片２４の延出端を弾性的に突き当てることで、弾性片２４がその延出方向へ変位するのを規制する規制部２８を備えている。この構成によれば、タブＴが角筒部１３に挿入されて弾性接触片１４に弾性接触する過程で、弾性片２４が規制部２８に突き当たると、それ以降は、弾性片２４の弾性撓み量が増大する。これにより、弾性片２４の弾性復元力による傾き防止効果が高められる。   Further, the terminal fitting 10 is formed in the square tube portion 13 and elastically abuts the extending end of the elastic piece 24 to restrict the elastic piece 24 from being displaced in the extending direction. It has. According to this configuration, when the elastic piece 24 hits the restricting portion 28 in the process in which the tab T is inserted into the rectangular tube portion 13 and elastically contacts the elastic contact piece 14, the elastic deflection amount of the elastic piece 24 thereafter. Will increase. Thereby, the tilt prevention effect by the elastic restoring force of the elastic piece 24 is enhanced.

また、角筒部の全体を、弾性接触片と一体に形成する場合、角筒部と弾性接触片が、夫々、相手側に対して設計上の制約を生じさせることが懸念される。その点、本実施形態１の端子金具１０は、弾性接触片１４とは別体の部品であって、弾性接触片１４を包囲して角筒部１３を構成するシェル１２を備えている。つまり、弾性接触片１４とは別体のシェル１２を用いて角筒部１３を構成している。したがって、弾性接触片１４と角筒部１３を設計する際の自由度が高い。   In addition, when the entire rectangular tube portion is formed integrally with the elastic contact piece, there is a concern that the rectangular tube portion and the elastic contact piece may cause design restrictions on the counterpart side. In this regard, the terminal fitting 10 of the first embodiment is a separate component from the elastic contact piece 14, and includes a shell 12 that surrounds the elastic contact piece 14 and forms the rectangular tube portion 13. That is, the rectangular tube portion 13 is configured using the shell 12 that is separate from the elastic contact piece 14. Therefore, the degree of freedom in designing the elastic contact piece 14 and the rectangular tube portion 13 is high.

＜実施形態２＞
次に、本発明を具体化した実施形態２を図１２〜図１６を参照して説明する。本実施形態２の端子金具３０は、図１２，１５，１６に示すように、互いに別体の部品である端子本体３１とシェル３２を組み付けることで、全体として前後方向に細長い形状に構成されている。端子金具３０の前後方向における前端側の略半分領域は、前方から雄側端子のタブＴを挿入させるための角筒部３３となっている。角筒部３３の内部には、タブＴに弾性的に接触する弾性接触片３４が収容されている。端子金具３０の後端側の略半分領域は、電線を圧着により接続するためのオープンバレル状の電線圧着部３５となっている。 <Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 12, 15, and 16, the terminal fitting 30 according to the second embodiment is configured to be elongated in the front-rear direction as a whole by assembling a terminal main body 31 and a shell 32, which are separate parts. Yes. A substantially half region on the front end side in the front-rear direction of the terminal fitting 30 is a rectangular tube portion 33 for inserting the tab T of the male terminal from the front. An elastic contact piece 34 that elastically contacts the tab T is accommodated inside the rectangular tube portion 33. A substantially half region on the rear end side of the terminal fitting 30 is an open barrel-shaped wire crimping portion 35 for connecting wires by crimping.

端子本体３１は、所定形状に打ち抜いた金属板材に曲げ加工等を施して成形されたものである。端子本体３１の前端側領域は、接触機能部３６となっており、端子本体３１の後端側領域は電線圧着部３５となっている。接触機能部３６は、支持部３７と、一対の弾性接触片３４と、二対の弾性片４２とを備えて構成されている。図１２，１４〜１６に示すように、支持部３７は、下壁部３８と、下壁部３８の左右両側縁から略直角に立ち上がる一対の側壁部３９（本発明の構成要件である支持壁部）とを備えて構成されている。   The terminal body 31 is formed by bending a metal plate material punched into a predetermined shape. A front end side region of the terminal body 31 is a contact function part 36, and a rear end side region of the terminal body 31 is a wire crimping part 35. The contact function part 36 includes a support part 37, a pair of elastic contact pieces 34, and two pairs of elastic pieces 42. As shown in FIGS. 12, 14 to 16, the support portion 37 includes a lower wall portion 38 and a pair of side wall portions 39 that rise substantially at right angles from the left and right side edges of the lower wall portion 38 (the support wall which is a constituent feature of the present invention). Part).

図１２，１５，１６に示すように、一対の弾性接触片３４は、側壁部３９から前方（角筒部３３に対するタブＴの挿入方向とは前後逆の方向）へ片持ち状に延出した形態であり、左右対称である。弾性接触片３４の上方（角筒部３３に対するタブＴの挿入方向、及び一対の弾性接触片３４が対向する左右方向の両方向に対して交差する方向）から視た形状は、互いに相手側の弾性接触片３４に向かって膨らむように湾曲している。そして、両弾性接触片３４の対向間隔（上下間隔）が最も狭い部分は、タブＴとの接点部４０となっている。   As shown in FIGS. 12, 15, and 16, the pair of elastic contact pieces 34 cantilevered from the side wall portion 39 to the front (the direction opposite to the front-rear direction of the insertion of the tab T with respect to the rectangular tube portion 33). It is a form and is bilaterally symmetric. The shape viewed from above the elastic contact piece 34 (the insertion direction of the tab T with respect to the rectangular tube portion 33 and the direction intersecting both the left and right directions in which the pair of elastic contact pieces 34 face each other) is the elasticity of the other side. It curves so as to swell toward the contact piece 34. And the part where the opposing space | interval (vertical space | interval) of both the elastic contact pieces 34 is the narrowest becomes the contact part 40 with the tab T. FIG.

図１２に示すように、弾性接触片３４の前端部（延出端部）は、それよりも後方の領域に比べて高さ寸法が大きくなっており、この嵩高の部分は、弾性接触片３４の上下両縁から上下方向へ突出した上下対称な一対の突出部４１となっている。各弾性接触片３４には、夫々、一対の突出部４１（弾性接触片３４の延出端部）から後方へ片持ち状に延出した形態の一対の弾性片４２が形成されている。各弾性接触片３４に形成された一対の弾性片４２は、上下対称である。また、右側の弾性片４２と左側の弾性片４２は、左右対称である。前後方向における弾性片４２の長さ寸法は、弾性接触片３４の長さよりも短い。また、弾性片４２の後端（延出端）は、接点部４０よりも後方に位置する。上方から視た弾性片４２の形状は、相手側の弾性片４２に向かって膨らむように湾曲している。   As shown in FIG. 12, the front end portion (extending end portion) of the elastic contact piece 34 has a height dimension larger than that of the rear region, and this bulky portion is the elastic contact piece 34. A pair of symmetrically projecting portions 41 projecting vertically from both upper and lower edges. Each elastic contact piece 34 is formed with a pair of elastic pieces 42 that extend in a cantilevered manner from the pair of protrusions 41 (extension ends of the elastic contact pieces 34). The pair of elastic pieces 42 formed on each elastic contact piece 34 is vertically symmetrical. The right elastic piece 42 and the left elastic piece 42 are symmetrical. The length dimension of the elastic piece 42 in the front-rear direction is shorter than the length of the elastic contact piece 34. Further, the rear end (extending end) of the elastic piece 42 is located behind the contact portion 40. The shape of the elastic piece 42 viewed from above is curved so as to swell toward the opposite elastic piece 42.

図１３〜１６に示すように、シェル３２は、下板部４３と、下板部４３の左右両側縁から略直角に立ち上がる一対の側板部４４と、一方の側板部４４の上端縁から略直角に延出する上板部４５とを備えて構成されている。図１２，１５，１６に示すように、左右両側板部４４には、夫々、シェル３２の内部に向かって斜め前方へ片持ち状に延出する形態の一対の規制部４６が、切り起こしによって形成されている。各側板部４４に形成されている一対の規制部４６は、上下対称である。また、右側の規制部４６と左側の規制部４６は、左右対称である。   As shown in FIGS. 13 to 16, the shell 32 includes a lower plate portion 43, a pair of side plate portions 44 that rise substantially at right angles from the left and right side edges of the lower plate portion 43, and a substantially right angle from the upper end edge of one side plate portion 44. And an upper plate portion 45 extending in the direction. As shown in FIGS. 12, 15, and 16, the left and right side plate portions 44 are each provided with a pair of restricting portions 46 that cantilevered forward toward the inside of the shell 32 by cutting up and down. Is formed. A pair of restricting portions 46 formed on each side plate portion 44 are vertically symmetric. Further, the right restricting portion 46 and the left restricting portion 46 are symmetrical.

シェル３２は、端子本体３１に対して接触機能部３６を包囲するように組み付けられている。シェル３２を組み付けた状態では、シェル３２と箱状支持部３７によって角筒部３３が構成されている。図１４に示すように、下板部４３と下壁部３８は、概ね面当たりするように重なり、左右両側板部４４と左右両側壁部３９も、概ね面当たりするように重なっている。また、側板部４４の上端縁から支持部３７の内側へ下向きに折り返された保持片４７が、左右両側壁部３９の内面に密着して嵌合することにより、シェル３２と端子本体３１が組み付け状態に保持されている。また、弾性接触片３４の基端部が、直接、繋がる左右両側壁部３９は、シェル３２との嵌合により、剛性が高められている。   The shell 32 is assembled with the terminal body 31 so as to surround the contact function part 36. In the state where the shell 32 is assembled, the rectangular tube portion 33 is constituted by the shell 32 and the box-shaped support portion 37. As shown in FIG. 14, the lower plate portion 43 and the lower wall portion 38 are overlapped so as to substantially contact each other, and the left and right side plate portions 44 and the left and right both side wall portions 39 are also overlapped so as to substantially contact each other. Further, the holding piece 47 folded downward from the upper end edge of the side plate portion 44 to the inside of the support portion 37 is closely fitted to the inner surfaces of the left and right side wall portions 39, whereby the shell 32 and the terminal body 31 are assembled. Held in a state. Further, the rigidity of the left and right side wall portions 39 to which the base end portion of the elastic contact piece 34 is directly connected is enhanced by fitting with the shell 32.

シェル３２と端子本体３１を組み付けた状態では、図１５，１６に示すように、弾性片４２の後端（延出端）が、左右方向においては、側板部４４の内面に対して、当接、又は接近して対向するように位置している。また、弾性片４２の後端（延出端）は、前後方向においては、規制部４６の前端（延出端）に対して前方から間隔を空けて対向している。   In the state where the shell 32 and the terminal main body 31 are assembled, as shown in FIGS. 15 and 16, the rear end (extending end) of the elastic piece 42 contacts the inner surface of the side plate portion 44 in the left-right direction. , Or close to face each other. Further, the rear end (extending end) of the elastic piece 42 is opposed to the front end (extending end) of the restricting portion 46 with a space from the front in the front-rear direction.

次に、本実施形態２の作用を説明する。角筒部３３にタブＴを挿入する過程では、タブＴが左右両弾性接触片３４の隙間に割り込むことにより、両弾性接触片３４が、その接点部４０を斜め後方へ変位させながら、左右に離間するように弾性変形する。この弾性接触片３４の弾性変形に伴い、弾性片４２が、その延出端を側板部４４に当接させた状態で、左右に離間するように弾性変形するとともに、弾性片４２の延出端が側板部４４に摺接しながら後方へ変位する。そして、タブＴの挿入動作が完了すると、弾性片４２の弾性変形量と弾性復元力が最大となる。   Next, the operation of the second embodiment will be described. In the process of inserting the tab T into the rectangular tube portion 33, the tab T cuts into the gap between the left and right elastic contact pieces 34, so that both elastic contact pieces 34 move left and right while displacing the contact portion 40 obliquely rearward. Elastically deforms so as to be separated. Along with the elastic deformation of the elastic contact piece 34, the elastic piece 42 is elastically deformed so as to be separated left and right in a state where the extended end is in contact with the side plate portion 44, and the extended end of the elastic piece 42. Is displaced rearward while sliding on the side plate portion 44. When the insertion operation of the tab T is completed, the elastic deformation amount and the elastic restoring force of the elastic piece 42 are maximized.

尚、タブＴが正しく角筒部３３内に挿入された場合は、弾性片４２は規制部４６とは当接しない。しかし、タブＴの挿入姿勢が不正であって、弾性接触片３４の弾性撓み量が適正範囲を超えて増大した場合は、弾性接触片３４の弾性撓み量が弾性限度の範囲内にあるうちに、弾性片４２の延出端が規制部４６の前端に突き当たるので、それ以上の弾性接触片３４の弾性撓み動作が阻止される。このように、本実施形態２では、弾性接触片３４がその弾性限度を超えて過度に撓むことが防止されている。   When the tab T is correctly inserted into the rectangular tube portion 33, the elastic piece 42 does not come into contact with the restricting portion 46. However, when the insertion posture of the tab T is incorrect and the elastic deflection amount of the elastic contact piece 34 increases beyond the appropriate range, the elastic deflection amount of the elastic contact piece 34 is within the elastic limit range. Since the extended end of the elastic piece 42 abuts against the front end of the restricting portion 46, further elastic bending operation of the elastic contact piece 34 is prevented. Thus, in the second embodiment, the elastic contact piece 34 is prevented from excessively bending beyond its elastic limit.

本実施形態２の端子金具３０は、前方からタブＴが挿入される角筒部３３と、角筒部３３内においてタブＴの挿入方向に沿うように延出し、角筒部３３に挿入されたタブＴに対し弾性撓みした状態で接触する弾性接触片３４とを備えているが、このような端子金具３０の場合、端子金具３０が振動や衝撃を受けたときに、弾性接触片３４が、幅方向両側縁の間で高低差が生じるような姿勢の傾きを生じ、その結果、タブＴとの間に隙間が生じて、接触状態が不安定になることが懸念される。   The terminal fitting 30 according to the second embodiment is inserted into the rectangular tube portion 33 so as to extend along the insertion direction of the tab T in the rectangular tube portion 33 and the rectangular tube portion 33 into which the tab T is inserted from the front. In the case of such a terminal fitting 30, when the terminal fitting 30 is subjected to vibration or impact, the elastic contact piece 34 is There is a concern that an inclination of the posture that causes a height difference between both side edges in the width direction is generated, and as a result, a gap is generated between the tab T and the contact state becomes unstable.

しかし、本実施形態２の端子金具３０は、弾性接触片３４の上下方向における両側縁から延出し、角筒部３３の内壁面に対し弾性的に当接可能な一対の弾性片４２を備えている。したがって、弾性接触片３４に姿勢を傾けるような外力が作用しても、一対の弾性片４２が角筒部３３の内壁面（側板部４４の内面）に弾性的に当接するので、弾性接触片３４の姿勢の傾きが防止される。   However, the terminal fitting 30 of the second embodiment includes a pair of elastic pieces 42 that extend from both side edges in the vertical direction of the elastic contact piece 34 and can elastically contact the inner wall surface of the rectangular tube portion 33. Yes. Therefore, even if an external force that tilts the posture acts on the elastic contact piece 34, the pair of elastic pieces 42 elastically contacts the inner wall surface of the rectangular tube portion 33 (the inner surface of the side plate portion 44). The inclination of the posture 34 is prevented.

また、角筒部の全体を、弾性接触片と一体に形成する場合、角筒部と弾性接触片が、夫々、相手側に対して設計上の制約を生じさせることが懸念される。その点、本実施形態２の端子金具３０は、弾性接触片３４とは別体の部品であって、弾性接触片３４を包囲して角筒部３３を構成するシェル３２を備えている。つまり、弾性接触片３４とは別体のシェル３２を用いて角筒部３３を構成している。したがって、弾性接触片３４と角筒部３３を設計する際の自由度が高い。   In addition, when the entire rectangular tube portion is formed integrally with the elastic contact piece, there is a concern that the rectangular tube portion and the elastic contact piece may cause design restrictions on the counterpart side. In that respect, the terminal fitting 30 of the second embodiment is a separate component from the elastic contact piece 34, and includes a shell 32 that surrounds the elastic contact piece 34 and constitutes the rectangular tube portion 33. That is, the rectangular tube portion 33 is configured using the shell 32 that is separate from the elastic contact piece 34. Therefore, the degree of freedom in designing the elastic contact piece 34 and the rectangular tube portion 33 is high.

＜参考例＞
次に、参考例を図１７，１８を参照して説明する。参考例の端子金具５０は、互いに別体の部品である端子本体５１とシェル５２を組み付けることで、全体として前後方向に細長い形状に構成されている。端子金具５０の前後方向における前端側の略半分領域は、前方から雄側端子のタブＴを挿入させるための角筒部５３となっており、角筒部５３の内部には、タブＴに弾性的に接触する弾性接触片５４が収容されている。端子金具５０の後端側の略半分領域は、電線を圧着により接続するためのオープンバレル状の電線圧着部５５となっている。 < Reference example >
Next, a reference example will be described with reference to FIGS. The terminal metal fitting 50 of the reference example is configured to have an elongated shape in the front-rear direction as a whole by assembling a terminal main body 51 and a shell 52 which are separate parts. A substantially half region on the front end side in the front-rear direction of the terminal fitting 50 is a rectangular tube portion 53 for inserting the tab T of the male terminal from the front. The rectangular tube portion 53 is elastic to the tab T. An elastic contact piece 54 that comes into contact is accommodated. A substantially half region on the rear end side of the terminal fitting 50 is an open barrel-shaped wire crimping portion 55 for connecting wires by crimping.

端子本体５１は、所定形状に打ち抜いた金属板材に曲げ加工等を施して成形されたものである。端子本体５１の前端側領域は、接触機能部５６となっており、端子本体５１の後端側領域は電線圧着部５５となっている。接触機能部５６は、箱状支持部５７と、一対の弾性接触片５４と、二対の弾性片５８とを備えて構成されている。箱状支持部５７は、下壁部５９（本発明の構成要件である支持壁部）と、下壁部５９の左右両側縁から略直角に立ち上がる一対の側壁部６０と、一方の側壁部６０から略直角に延出する上壁部６１（本発明の構成要件である支持壁部）とを備えて角筒状に形成されている。箱状支持部５７は、全周に亘って連続することによって剛性が高められている。   The terminal body 51 is formed by bending a metal plate material punched into a predetermined shape. A front end side region of the terminal main body 51 is a contact function portion 56, and a rear end side region of the terminal main body 51 is an electric wire crimping portion 55. The contact function part 56 includes a box-shaped support part 57, a pair of elastic contact pieces 54, and two pairs of elastic pieces 58. The box-shaped support part 57 includes a lower wall part 59 (a support wall part that is a constituent element of the present invention), a pair of side wall parts 60 that rise substantially at right angles from the left and right side edges of the lower wall part 59, and one side wall part 60. And an upper wall portion 61 (a supporting wall portion which is a constituent feature of the present invention) extending substantially at a right angle. The box-shaped support portion 57 has increased rigidity by being continuous over the entire circumference.

図１７に示すように、上下対称な一対の弾性接触片５４は、下壁部５９と上壁部６１から前方（角筒部５３に対するタブＴの挿入方向とは前後逆の方向）へ片持ち状に延出した形態であり、上下対称である。弾性接触片５４の側方（角筒部５３に対するタブＴの挿入方向、及び一対の弾性接触片５４が対向する左右方向の両方向に対して交差する方向）から視た形状は、互いに相手側の弾性接触片５４に向かって膨らむように湾曲している。そして、両弾性接触片５４の対向間隔（上下間隔）が最も狭い部分は、タブＴとの接点部６２となっている。   As shown in FIG. 17, a pair of vertically symmetrical elastic contact pieces 54 are cantilevered forward from the lower wall portion 59 and the upper wall portion 61 (the direction opposite to the front-rear direction of the insertion of the tab T with respect to the rectangular tube portion 53). It is the form extended in the shape, and is vertically symmetrical. The shape viewed from the side of the elastic contact piece 54 (the direction in which the tab T is inserted into the rectangular tube portion 53 and the direction in which the pair of elastic contact pieces 54 intersect with each other in the left-right direction) is It is curved so as to swell toward the elastic contact piece 54. And the part where the opposing space | interval (vertical space | interval) of both the elastic contact pieces 54 is the narrowest is the contact part 62 with the tab T. FIG.

幅方向における弾性接触片５４の形成領域は、下壁部５９及び上壁部６１の中央部分である。また、弾性接触片５４の延出端部（前端部）は、その両端部の間の領域に比べて幅広となっており、この幅広の部分は、幅方向へ突出した左右対称な突出部６３となっている。そして、接触機能部５６には、突出部６３と上壁部５９又は突出部６３と上壁部６１とを繋ぐような形態の左右対称な一対の弾性片５８が形成されている。つまり、弾性片５８は、その前後両端部を支持された両持ち支持形態である。また、下壁部５９に繋がる弾性片５８と上壁部６１に繋がる弾性片５８は、上下対称である。側方から視た弾性片５８の形状は、相手側の弾性片５８から離間する方向へ膨らむように（つまり、弾性接触片５４とは逆方向へ膨らむように）湾曲している。   The formation region of the elastic contact piece 54 in the width direction is a central portion of the lower wall portion 59 and the upper wall portion 61. Further, the extended end portion (front end portion) of the elastic contact piece 54 is wider than the region between the both end portions, and this wide portion protrudes in the left-right direction from the left-right symmetrical protrusion 63. It has become. The contact function portion 56 is formed with a pair of left and right elastic pieces 58 that are configured to connect the protruding portion 63 and the upper wall portion 59 or the protruding portion 63 and the upper wall portion 61. That is, the elastic piece 58 is a both-end supported form in which both front and rear ends thereof are supported. The elastic piece 58 connected to the lower wall portion 59 and the elastic piece 58 connected to the upper wall portion 61 are vertically symmetrical. The shape of the elastic piece 58 viewed from the side is curved so as to swell in a direction away from the counterpart elastic piece 58 (that is, so as to swell in a direction opposite to the elastic contact piece 54).

図１７に示すように、シェル５２は、下板部６４と、下板部６４の左右両側縁から略直角に立ち上がる一対の側板部（図示省略）と、一方の側板部の上端縁から略直角に延出する上板部６６とを備えて構成されている。シェル５２は、端子本体５１に対して接触機能部５６を包囲するように組み付けられている。シェル５２を組み付けた状態では、シェル５２と箱状支持部５７によって角筒部５３が構成されている。下板部６４と下壁部５９は、概ね面当たりするように重なり、左右両側板部と左右両側壁部６０も、概ね面当たりするように重なっている。また、弾性片５８が、下板部６４及び上板部６６の内面に対して、当接、又は接近して対向するように位置している。   As shown in FIG. 17, the shell 52 includes a lower plate portion 64, a pair of side plate portions (not shown) that rise substantially at right angles from the left and right side edges of the lower plate portion 64, and a substantially right angle from the upper end edge of one side plate portion. And an upper plate portion 66 extending in the direction. The shell 52 is assembled so as to surround the contact function part 56 with respect to the terminal body 51. In the state where the shell 52 is assembled, the rectangular tube portion 53 is configured by the shell 52 and the box-shaped support portion 57. The lower plate portion 64 and the lower wall portion 59 overlap so as to substantially contact each other, and the left and right side plate portions and the left and right both side wall portions 60 also overlap so as to substantially contact each other. Further, the elastic piece 58 is positioned so as to be in contact with or close to the inner surfaces of the lower plate portion 64 and the upper plate portion 66.

角筒部５３にタブＴを挿入する過程では、タブＴが左右両弾性接触片５４の隙間に割り込むことにより、両弾性接触片５４が、上下に離間するように弾性変形する。この弾性接触片５４の弾性変形に伴い、弾性片５８が、下板部６４又は上板部６６に当接させた状態で、弾性変形する。そして、タブＴの挿入動作が完了すると、弾性片５８の弾性変形量と弾性復元力が最大となる。   In the process of inserting the tab T into the rectangular tube portion 53, the elastic deformation of the two elastic contact pieces 54 is caused to be separated vertically by the tab T being inserted into the gap between the left and right elastic contact pieces 54. Along with the elastic deformation of the elastic contact piece 54, the elastic piece 58 is elastically deformed in a state of being in contact with the lower plate portion 64 or the upper plate portion 66. When the insertion operation of the tab T is completed, the elastic deformation amount and the elastic restoring force of the elastic piece 58 are maximized.

参考例の端子金具５０は、前方からタブＴが挿入される角筒部５３と、角筒部５３内においてタブＴの挿入方向に沿うように延出し、角筒部５３に挿入されたタブＴに対し弾性撓みした状態で接触する弾性接触片５４とを備えているが、このような端子金具５０の場合、端子金具５０が振動や衝撃を受けたときに、弾性接触片５４が、幅方向両側縁の間で高低差が生じるような姿勢の傾きを生じ、その結果、タブＴとの間に隙間が生じて、接触状態が不安定になることが懸念される。 The terminal fitting 50 of the reference example includes a rectangular tube portion 53 into which the tab T is inserted from the front, and the tab T inserted into the rectangular tube portion 53 and extending along the insertion direction of the tab T in the rectangular tube portion 53. However, in the case of such a terminal fitting 50, when the terminal fitting 50 is subjected to vibration or impact, the elastic contact piece 54 is moved in the width direction. There is a concern that an inclination of the posture that causes a difference in height between both side edges is generated, and as a result, a gap is formed between the tabs T and the contact state becomes unstable.

しかし、参考例の端子金具５０は、弾性接触片５４の左右方向における両側縁から延出し、角筒部５３の内壁面に対し弾性的に当接可能な一対の弾性片５８を備えている。したがって、弾性接触片５４に姿勢を傾けるような外力が作用しても、一対の弾性片５８が角筒部５３の内壁面（下板部６４と上板部６６の内面）に弾性的に当接するので、弾性接触片５４の姿勢の傾きが防止される。 However, the terminal fitting 50 of the reference example includes a pair of elastic pieces 58 that extend from both side edges of the elastic contact piece 54 in the left-right direction and can elastically contact the inner wall surface of the rectangular tube portion 53. Therefore, even if an external force that tilts the posture acts on the elastic contact piece 54, the pair of elastic pieces 58 elastically contacts the inner wall surface of the rectangular tube portion 53 (the inner surfaces of the lower plate portion 64 and the upper plate portion 66). Since it contacts, the inclination of the posture of the elastic contact piece 54 is prevented.

＜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１および２では、角筒部の後方に電線圧着部が形成されている場合について説明したが、本発明は、電線を圧接によって接続する端子金具や、回路基板に接続される端子金具にも適用できる。
（２）上記実施形態１および２では、タブを一対の弾性接触片の間で挟むようにしたが、本発明は、角筒部を構成する壁部と弾性接触片との間でタブを挟む端子金具にも適用できる。
（３）上記実施形態１では、弾性接触片が後方（タブの挿入方向と同じ方向）へ片持ち状に延出する形態としたが、弾性接触片は前方（タブの挿入方向と逆方向）へ片持ち状に延出する形態としてもよい。
（４）上記実施形態２では、弾性接触片が前方（タブの挿入方向と逆方向）へ片持ち状に延出する形態としたが、弾性接触片は後方（タブの挿入方向と同じ方向）へ片持ち状に延出する形態としてもよい。
（５）上記実施形態２に対し、タブの挿入の過程で弾性片の延出端部を規制部に突き当てる実施形態１の構造を適用することができる。
（６）上記実施形態１に対し、弾性片を規制部に突き当てて弾性接触片の過度の弾性撓みを防止する実施形態２の構造を適用することができる。 <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 first and second embodiments, the case where the wire crimping portion is formed behind the square tube portion has been described. However, the present invention is connected to a terminal fitting or a circuit board for connecting the wire by pressure welding. Applicable to terminal fittings.
(2) In the first and second embodiments, the tab is sandwiched between the pair of elastic contact pieces. However, in the present invention, the tab is sandwiched between the wall portion constituting the rectangular tube portion and the elastic contact piece. It can also be applied to terminal fittings.
(3) In Embodiment 1 described above, the elastic contact piece extends in a cantilevered manner backward (in the same direction as the tab insertion direction), but the elastic contact piece is forward (in the opposite direction to the tab insertion direction). It is good also as a form extended in the shape of a cantilever.
(4) In Embodiment 2 described above, the elastic contact piece extends in a cantilevered direction forward (opposite to the tab insertion direction), but the elastic contact piece is rearward (in the same direction as the tab insertion direction). It is good also as a form extended in the shape of a cantilever.
( 5 ) The structure of the first embodiment in which the extending end of the elastic piece abuts against the restricting portion in the process of inserting the tab can be applied to the second embodiment.
( 6 ) The structure of the second embodiment in which the elastic piece is abutted against the restricting portion to prevent excessive elastic bending of the elastic contact piece can be applied to the first embodiment.

Ｔ…タブ
１０…端子金具
１２…シェル
１３…角筒部
１４…弾性接触片
１４Ｆ…弾性接触片の基端部
１７…下壁部（支持壁部）
１９…上壁部（支持壁部）
２４…弾性片
２８…規制部
３０，５０…端子金具
３２，５２…シェル
３３，５３…角筒部
３４，５４…弾性接触片
４２，５８…弾性片 T ... Tab 10 ... Terminal metal fitting 12 ... Shell 13 ... Square tube part 14 ... Elastic contact piece 14F ... Base end part of elastic contact piece 17 ... Lower wall part (support wall part)
19 ... Upper wall (support wall)
24 ... elastic piece 28 ... restricting part 30, 50 ... terminal fitting 32, 52 ... shell 33, 53 ... square tube part 34, 54 ... elastic contact piece 42, 58 ... elastic piece

Claims (2)

前方からタブが挿入される角筒部と、
前記角筒部内において前記タブの挿入方向に沿うように延出し、前記角筒部に挿入された前記タブに対し弾性撓みした状態で接触する弾性接触片と、
前記弾性接触片の幅方向における両側縁から延出し、前記角筒部の内壁面に対し弾性的に当接可能な一対の弾性片とを備え、
前記弾性接触片とは別体の部品であって、前記弾性接触片を包囲して前記角筒部を構成するシェルを有し、
前記弾性接触片は、前記シェルが外嵌する支持部から延出するものとされ、
前記シェルには、前記弾性片の延出端を弾性的に突き当てることで、前記弾性片がその延出方向へ変位するのを規制する規制部が備えられていることを特徴とする端子金具。 A rectangular tube part into which a tab is inserted from the front;
An elastic contact piece that extends along the insertion direction of the tab in the rectangular tube portion and contacts the tab inserted into the rectangular tube portion in an elastically deformed state;
A pair of elastic pieces extending from both side edges in the width direction of the elastic contact pieces and capable of elastic contact with the inner wall surface of the rectangular tube portion ;
The elastic contact piece is a separate part, and has a shell that surrounds the elastic contact piece and constitutes the rectangular tube portion,
The elastic contact piece extends from a support portion to which the shell is fitted,
The terminal fitting , wherein the shell is provided with a restricting portion that restricts the elastic piece from being displaced in the extending direction by elastically abutting the extending end of the elastic piece. . 前記弾性接触片が、前記角筒部を構成する支持壁部から延出しており、
前記弾性片が、前記弾性接触片の基端部から延出していることを特徴とする請求項１記載の端子金具。 The elastic contact piece extends from a support wall portion constituting the square tube portion,
The terminal fitting according to claim 1, wherein the elastic piece extends from a base end portion of the elastic contact piece.
JP2011212626A 2011-09-28 2011-09-28 Terminal fitting Expired - Fee Related JP5737112B2 (en)

Priority Applications (4)

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JP2011212626A JP5737112B2 (en) 2011-09-28 2011-09-28 Terminal fitting
DE102012017949A DE102012017949A1 (en) 2011-09-28 2012-09-11 Terminal fitting
EP12006393.8A EP2575215B1 (en) 2011-09-28 2012-09-11 Terminal fitting
US13/629,987 US8795007B2 (en) 2011-09-28 2012-09-28 Terminal fitting

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014118688A1 (en) * 2014-08-21 2016-02-25 Erni Production Gmbh & Co. Kg Contact element and connector
CN112930624B (en) * 2018-06-07 2023-10-03 皇家精密制品有限责任公司 Electrical connector system with internal spring components

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Publication number Priority date Publication date Assignee Title
DE3510895A1 (en) * 1985-03-26 1986-10-09 Grote & Hartmann ROUND SOCKET
JPS6356572U (en) * 1986-09-30 1988-04-15
EP0697752A3 (en) * 1994-08-19 1996-05-29 Whitaker Corp Electrical receptacle terminal
JP3518178B2 (en) * 1996-07-25 2004-04-12 住友電装株式会社 Female terminal fitting
JP3319292B2 (en) * 1996-07-26 2002-08-26 住友電装株式会社 Female terminal fitting
US5938485A (en) * 1996-09-30 1999-08-17 The Whitaker Corporation Electrical terminal
US6293833B1 (en) * 2001-01-05 2001-09-25 Yazaki North America Low insertion force, high contact force terminal spring
JP2003045536A (en) * 2001-08-01 2003-02-14 Auto Network Gijutsu Kenkyusho:Kk Terminal structure
US20060292937A1 (en) * 2005-06-23 2006-12-28 Morello John R Electrical connector having dual contact function spring contact terminal
EP2328236B1 (en) * 2009-10-19 2012-08-15 Delphi Technologies, Inc. Electric connecting element
DE102010024525B4 (en) * 2010-06-21 2013-10-24 Fritz Stepper Gmbh & Co. Kg Electrical socket contact

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