JP5191814B2 - Terminal fitting - Google Patents

Terminal fitting Download PDF

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Publication number
JP5191814B2
JP5191814B2 JP2008155581A JP2008155581A JP5191814B2 JP 5191814 B2 JP5191814 B2 JP 5191814B2 JP 2008155581 A JP2008155581 A JP 2008155581A JP 2008155581 A JP2008155581 A JP 2008155581A JP 5191814 B2 JP5191814 B2 JP 5191814B2
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Japan
Prior art keywords
rubber plug
wire
terminal fitting
metal fitting
rubber
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Expired - Fee Related
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JP2008155581A
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JP2009301891A (en
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正剛 鈴木
彰洋 長尾
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Yazaki Corp
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Yazaki Corp
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Description

本発明は、ゴム栓を備える端子金具に関する。   The present invention relates to a terminal fitting including a rubber plug.

防水コネクタ等に用いられるゴム栓は、下記の特許文献１に示すように、ゴム栓の備える電線加締め部を端子金具のインシュレーションバレルで加締められ、電線とキャビティとの間をシールするように構成されている。   As shown in Patent Document 1 below, a rubber plug used for a waterproof connector or the like is such that a wire crimping portion provided in a rubber plug is crimped by an insulation barrel of a terminal fitting so as to seal between the wire and the cavity. It is configured.

特開２００４−２８８４３２号公報JP 2004-288432 A

上記従来のゴム栓では、加締められると切れが生じ、また、加締め位置がばらつくことで、シール機能が低下する虞があった。   In the above conventional rubber plug, there is a possibility that a cut occurs when it is crimped, and that the sealing function is deteriorated due to variations in the crimping position.

本発明は斯かる課題に鑑みてなされたもので、上記課題を解決できる端子金具を提供することを目的とする。   This invention is made | formed in view of such a subject, and it aims at providing the terminal metal fitting which can solve the said subject.

このような目的を達成するために、本発明の端子金具は、電線の加締め部と前記電線の挿通方向に並んで配置され、前記加締め部に加締められた電線を側方から包み込むようにオープンバレル形状を呈したゴム栓形成部に、ゴム栓を一体形成されて備えることを特徴とする。
また、本発明は、前記ゴム栓形成部が、前記電線の周方向に沿って拡開及び縮閉可能に構成されて前記電線の挿通方向に沿って延びた開放端を備えることを特徴とする。 In order to achieve such an object, the terminal fitting of the present invention is arranged side by side in the wire crimping portion and the wire insertion direction so as to wrap the wire crimped in the crimping portion from the side. A rubber plug is formed integrally with a rubber plug forming portion having an open barrel shape .
Further, the present invention is characterized in that the rubber plug forming portion includes an open end that is configured to be expanded and contracted along the circumferential direction of the electric wire and extends along the insertion direction of the electric wire. .

本発明によれば、ゴム栓の切れや加締め位置のばらつきを防いで、シール機能の低下を抑え、ゴム栓を用いた防水の信頼性を高めることができる。   According to the present invention, it is possible to prevent the rubber plug from being cut and the variation in the caulking position, to suppress the deterioration of the sealing function, and to improve the reliability of waterproofing using the rubber plug.

以下、図面を参照して、本発明の最良の形態を説明する。
図１は、本実施形態の端子金具１の前方からの斜視図である。図２は、端子金具１の金具本体２からゴム栓３を分離させた状態を示す斜視図である。図１に示すように、端子金具１は、銅等の金属製の金具本体２に、ゴム栓３を一体成形して構成されている。図２に示すように、金具本体２は、相手方の端子金具と接続される接続部２１と、電線の芯線を加締めるワイヤバレル２２と、ゴム栓３の成形されるゴム栓形成片２３とを備えている。 Hereinafter, the best mode of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view from the front of the terminal fitting 1 of the present embodiment. FIG. 2 is a perspective view showing a state in which the rubber plug 3 is separated from the metal fitting body 2 of the terminal metal fitting 1. As shown in FIG. 1, the terminal fitting 1 is configured by integrally molding a rubber plug 3 on a metal fitting body 2 made of metal such as copper. As shown in FIG. 2, the metal fitting body 2 includes a connection portion 21 connected to a mating terminal fitting, a wire barrel 22 for caulking the core wire of the electric wire, and a rubber plug forming piece 23 on which the rubber plug 3 is formed. I have.

ゴム栓形成片２３は、ワイヤバレル２２の後縁から左右方向に延びた略矩形の平板体を、その左右の端部を間隙２３ａを設けて向かい合わせ、円筒状に丸めた概略形状を有している。つまり、ゴム栓形成片２３は、ワイヤバレル２２に加締められた電線を側方から包み込むように環状を呈しており、加締められた電線の周方向に沿って拡開及び縮閉可能に構成されて電線の挿通方向に沿って延びた開放端を備えている。ゴム栓形成片２３の周壁には、円形の貫通孔２３ｂが設けられている。   The rubber plug forming piece 23 has a schematic shape in which a substantially rectangular flat plate extending in the left-right direction from the rear edge of the wire barrel 22 is opposed to each other by providing a gap 23a at the left and right ends, and rounded into a cylindrical shape. ing. That is, the rubber plug forming piece 23 has an annular shape so as to wrap the electric wire crimped in the wire barrel 22 from the side, and can be expanded and contracted along the circumferential direction of the crimped electric wire. And an open end extending along the insertion direction of the electric wire. A circular through hole 23 b is provided on the peripheral wall of the rubber plug forming piece 23.

ゴム栓３は、円筒状の概略形状を有しており、その内側が電線の挿通孔３２となっている。挿通孔３２の内面は、挿通孔３２に挿通された電線の外周面と密着して、キャビティ内をシールする。ゴム栓３の前端部には、ゴム栓３の外周面を膨出させて構成された２本のシール突条３１が、ゴム栓３の周方向に沿って環状を呈して延びている。シール突条３１は、図示しないコネクタのキャビティにゴム栓３が収容されると、キャビティの内壁面と密着して、キャビティ内をシールする。   The rubber plug 3 has a substantially cylindrical shape, and an inner side thereof is an insertion hole 32 for an electric wire. The inner surface of the insertion hole 32 is in close contact with the outer peripheral surface of the electric wire inserted through the insertion hole 32 to seal the inside of the cavity. At the front end of the rubber plug 3, two seal protrusions 31 formed by bulging the outer peripheral surface of the rubber plug 3 extend in an annular shape along the circumferential direction of the rubber plug 3. When the rubber plug 3 is accommodated in the cavity of the connector (not shown), the seal protrusion 31 is in close contact with the inner wall surface of the cavity and seals the inside of the cavity.

図３（ａ）は端子金具１の側面図，（ｂ）は（ａ）のＡ−Ａ線断面図である。図３（ｂ）に示すように、ゴム栓形成片２３には、ゴム栓形成片２３の周方向に沿って、４つの貫通孔２３ｂが等間隔で配置されている。ゴム栓形成片２３の間隙２３ａ及び貫通孔２３ｂには、ゴム栓３を形成したゴムが充填されている。   FIG. 3A is a side view of the terminal fitting 1, and FIG. 3B is a cross-sectional view taken along line AA of FIG. As shown in FIG. 3B, four through holes 23 b are arranged at equal intervals along the circumferential direction of the rubber plug forming piece 23 in the rubber plug forming piece 23. The gap 23a and the through hole 23b of the rubber plug forming piece 23 are filled with rubber forming the rubber plug 3.

本実施形態によれば、ゴム栓３を加締めずに端子金具１に一体成形することで、ゴム栓３の切れや加締め位置のばらつきが生じるのを防ぐことができる。この結果、シール機能の低下を抑え、ゴム栓３を用いた防水の信頼性を高めることができる。また、ゴム栓３を金具本体２に加締めるためのスペースを削減し、端子金具１の全長をその分短くすることができる。従って、端子金具１の小型化及び軽量化を図ることができる。例えば、図４（ａ）に示すように、金具本体２０の加締め部２３０にゴム栓３００を加締めて一体化した端子金具１０の全長をＬ１，図４（ｂ）に示す本実施形態の端子金具１の全長をＬ２とすると、加締め部２３０の長さＬだけ、端子金具１の全長Ｌ１よりも端子金具１の全長Ｌ２を短くすることができる。   According to the present embodiment, the rubber plug 3 can be integrally formed with the terminal fitting 1 without caulking, thereby preventing the rubber plug 3 from being cut or the caulking position from being varied. As a result, the deterioration of the sealing function can be suppressed, and the waterproof reliability using the rubber plug 3 can be enhanced. Moreover, the space for crimping the rubber plug 3 to the metal fitting body 2 can be reduced, and the overall length of the terminal metal fitting 1 can be shortened accordingly. Accordingly, the terminal fitting 1 can be reduced in size and weight. For example, as shown in FIG. 4A, the overall length of the terminal fitting 10 in which the rubber plug 300 is integrated by crimping the rubber plug 300 to the crimping portion 230 of the fitting body 20 is shown in L1, FIG. When the total length of the terminal fitting 1 is L2, the total length L2 of the terminal fitting 1 can be made shorter than the total length L1 of the terminal fitting 1 by the length L of the crimping portion 230.

また、本実施形態によれば、ゴム栓形成片２３の貫通孔２３ｂにゴム栓３を形成するゴムが充填されることで、前後方向への外力がゴム栓３に働くことによるゴム栓３の抜けを防止できる。また、挿通孔３２に電線を挿通する際やコネクタのキャビティにゴム栓３を挿入する際に外力が働くと、間隙２３ａが拡開又は縮閉して、図３（ｂ）に矢印で示す向き又はその逆向きにゴム製のゴム栓３と共に変形することで、これらの作業性を向上させることができる。また、ゴム栓形成片２３の弾発力でシール性を高められる。   Moreover, according to this embodiment, the rubber plug 3 is filled with the rubber that forms the rubber plug 3 in the through hole 23 b of the rubber plug forming piece 23, so that the external force in the front-rear direction acts on the rubber plug 3. It can be prevented from coming off. Further, when an external force is applied when an electric wire is inserted through the insertion hole 32 or when the rubber plug 3 is inserted into the cavity of the connector, the gap 23a expands or contracts, and the direction indicated by the arrow in FIG. Alternatively, the workability can be improved by deforming together with the rubber rubber plug 3 in the opposite direction. Further, the sealing performance can be enhanced by the elastic force of the rubber plug forming piece 23.

上記実施形態では、貫通孔２３ｂが円形である場合について説明したが、ゴム栓３を形成するゴムが充填されるように、ゴム栓形成片２３の周壁を貫通しているのであれば、その形状は任意である。例えば、ゴム栓形成片２３の前縁及び後縁の少なくとも一方に、ゴム栓形成片２３の周壁を貫通する切り込みを設けて貫通孔２３ｂを形成してもよい。また、ゴム栓形成片２３の備える貫通孔２３ｂの数量も任意である。   In the above embodiment, the case where the through hole 23b is circular has been described. However, if the through hole 23b penetrates the peripheral wall of the rubber plug forming piece 23 so as to be filled with the rubber forming the rubber plug 3, the shape thereof is used. Is optional. For example, at least one of the front edge and the rear edge of the rubber plug forming piece 23 may be provided with a cut through the peripheral wall of the rubber plug forming piece 23 to form the through hole 23b. Further, the number of through holes 23b provided in the rubber plug forming piece 23 is also arbitrary.

また、金具本体２とゴム栓３とを一体成形する方法は任意である。例えば、加硫成形金型の成形キャビティ内に配置した金具本体２の接着表面（ゴム栓形成片２３の表面）に加硫接着剤を塗布した後、成形キャビティ内にゴム組成物を注入してゴム栓３を加硫成形すると同時に、ゴム栓形成片２３とゴム栓３とを加硫接着してもよい。   Moreover, the method of integrally molding the metal fitting body 2 and the rubber plug 3 is arbitrary. For example, after applying a vulcanized adhesive to the adhesive surface (surface of the rubber plug forming piece 23) of the metal fitting body 2 placed in the molding cavity of the vulcanization molding die, the rubber composition is injected into the molding cavity. At the same time as the rubber plug 3 is vulcanized, the rubber plug forming piece 23 and the rubber plug 3 may be vulcanized and bonded.

本発明の一実施形態の端子金具の前方からの斜視図である。It is a perspective view from the front of the terminal metal fitting of one Embodiment of this invention. 図１に示す端子金具の金具本体からゴム栓を分離させた状態を示す斜視図である。It is a perspective view which shows the state which isolate | separated the rubber stopper from the metal fitting main body of the terminal metal fitting shown in FIG. （ａ）は端子金具の側面図，（ｂ）は（ａ）のＡ−Ａ線断面図である。(A) is a side view of a terminal metal fitting, (b) is the sectional view on the AA line of (a). ゴム栓を加締める従来の端子金具と図１に示す端子金具とを比較して説明する図である。It is a figure which compares and demonstrates the conventional terminal metal fitting which crimps a rubber stopper, and the terminal metal fitting shown in FIG.

符号の説明Explanation of symbols

１ 端子金具
２ 金具本体
２１ 接続部
２２ ワイヤバレル
２３ ゴム栓形成片
２３ａ 間隙
２３ｂ 貫通孔
３ ゴム栓 DESCRIPTION OF SYMBOLS 1 Terminal metal fitting 2 Metal fitting body 21 Connection part 22 Wire barrel 23 Rubber plug formation piece 23a Gap 23b Through-hole 3 Rubber plug

Claims (2)

電線の加締め部と前記電線の挿通方向に並んで配置され、前記加締め部に加締められた電線を側方から包み込むようにオープンバレル形状を呈したゴム栓形成部に、ゴム栓を一体形成されて備えることを特徴とする端子金具。 A rubber plug is integrated with a rubber plug forming portion that is arranged side by side in the wire insertion direction and the wire insertion direction, and that has an open barrel shape so as to wrap the wire crimped by the crimping portion from the side. A terminal fitting formed and provided. 前記ゴム栓形成部は、前記電線の周方向に沿って拡開及び縮閉可能に構成されて前記電線の挿通方向に沿って延びた開放端を備えることを特徴とする請求項１に記載の端子金具。   The said rubber plug formation part is comprised so that expansion and contraction are possible along the circumferential direction of the said electric wire, and is provided with the open end extended along the insertion direction of the said electric wire. Terminal fitting.
JP2008155581A 2008-06-13 2008-06-13 Terminal fitting Expired - Fee Related JP5191814B2 (en)

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JP2009301891A JP2009301891A (en) 2009-12-24
JP5191814B2 true JP5191814B2 (en) 2013-05-08

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012031312A1 (en) * 2010-09-09 2012-03-15 Ark Corporation Pty Ltd Electrical connector
JP5792494B2 (en) 2011-03-31 2015-10-14 矢崎総業株式会社 Wire and terminal connection structure
JP6267996B2 (en) * 2014-02-27 2018-01-24 矢崎総業株式会社 Manufacturing method of waterproof connector and manufacturing method of electric wire with terminal
CN113465457B (en) * 2021-06-17 2023-05-26 北京凯米迈克科技有限公司 Expandable connecting piece

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0421265Y2 (en) * 1988-04-18 1992-05-14
JPH052382U (en) * 1991-06-24 1993-01-14 矢崎総業株式会社 Terminal fitting
JP2737668B2 (en) * 1994-09-26 1998-04-08 住友電装株式会社 Rubber stopper
JPH0850956A (en) * 1994-08-08 1996-02-20 Sumitomo Wiring Syst Ltd Fixing structure of rubber plug for sealing
JPH08190956A (en) * 1995-01-12 1996-07-23 Sumitomo Wiring Syst Ltd Terminal fitting
JP3042368B2 (en) * 1995-05-08 2000-05-15 住友電装株式会社 Terminal fitting
JP3292275B2 (en) * 1995-09-21 2002-06-17 住友電装株式会社 Waterproof seal for connector

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