JP2016076415A - Earth terminal and combination earth terminal - Google Patents

Earth terminal and combination earth terminal Download PDF

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Publication number
JP2016076415A
JP2016076415A JP2014206922A JP2014206922A JP2016076415A JP 2016076415 A JP2016076415 A JP 2016076415A JP 2014206922 A JP2014206922 A JP 2014206922A JP 2014206922 A JP2014206922 A JP 2014206922A JP 2016076415 A JP2016076415 A JP 2016076415A
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Prior art keywords
ground terminal
bolt fastening
diameter
side fixing
electric wire
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JP2014206922A
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Inventor
貴裕 土屋
Takahiro Tsuchiya
貴裕 土屋
土屋　隆
Takashi Tsuchiya
隆 土屋
北川　裕士
Yuji Kitagawa
裕士 北川
優一 後藤
Yuichi Goto
優一 後藤
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2014206922A priority Critical patent/JP2016076415A/en
Priority to PCT/JP2015/076417 priority patent/WO2016056372A1/en
Publication of JP2016076415A publication Critical patent/JP2016076415A/en
Pending legal-status Critical Current

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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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail

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  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce the manufacturing cost of an earth terminal.SOLUTION: An earth terminal 20 disclosed by the specification includes: a flat plate-like bolt fastening part 30 capable of being bolted to an installation part provided in a vehicle body; a wire connection 40 which is provided separately from the bolt fastening part 30 and connected to the terminal of a wire 60; a fastening part-side fixing part 37 which is provided integrally in the bolt fastening part 30; and a wire connection-side fixing part 45 which is provided integrally in the wire connection 40 and fixed to the fastening part-side fixing part 37 to be electrically connected thereto.SELECTED DRAWING: Figure 1

Description

本明細書によって開示される技術は、アース端子および組み合わせアース端子に関する。   The technology disclosed by the present specification relates to a ground terminal and a combined ground terminal.

例えば、車両に設けられた設置部材にボルト締結される複数のアース端子を有する組み合わせアース端子として、特開２００６−４０７５９号公報（下記特許文献１）が知られている。このアース端子は、ボルトが挿通されるボルト孔を有する締結部に電線が圧着される電線接続部が連設された構成とされており、ボルト孔を中心に複数のアース端子の締結部を互いに組み付け、ボルトによって一括してボルト締結されることで、組み合わせアース端子が設置部材に電気的に接続されるようになっている。   For example, Japanese Unexamined Patent Application Publication No. 2006-40759 (Patent Document 1 below) is known as a combined ground terminal having a plurality of ground terminals bolted to an installation member provided in a vehicle. The ground terminal has a structure in which a wire connecting portion to which an electric wire is crimped is connected to a fastening portion having a bolt hole through which a bolt is inserted, and the fastening portions of a plurality of ground terminals are connected to each other around the bolt hole. The combined ground terminal is electrically connected to the installation member by being assembled and bolted together by bolts.

特開２００６−４０７５９号公報JP 2006-40759 A

ところで、一般に、この種のアース端子は、１枚の金属板材をプレス加工して形成されるため、締結部をボルトの頭部よりも大きい略円形状に形成する場合、電線径が細く電線接続部が幅狭で小型なアース端子であっても、締結部の幅寸法に合わせて金属板材を幅広に切断することになる。したがって、電線接続部の側方に大きく切り落とす部分が生じ、歩留まりが悪くなることでアース端子の製造コスト、ひいては組み合わせアース端子の製造コストが高くなってしまう。   By the way, in general, since this type of ground terminal is formed by pressing a single metal plate, when the fastening portion is formed in a substantially circular shape larger than the head of the bolt, the wire diameter is small. Even if the portion is a small and small earth terminal, the metal plate material is cut broadly in accordance with the width dimension of the fastening portion. Therefore, a portion to be largely cut off is formed on the side of the wire connection portion, and the yield is deteriorated, so that the manufacturing cost of the ground terminal, and hence the manufacturing cost of the combined ground terminal is increased.

本明細書では、アース端子の製造コストを低減する技術を開示する。   In the present specification, a technique for reducing the manufacturing cost of the ground terminal is disclosed.

本明細書によって開示される技術は、アース端子であって、設置部にボルト締結可能な平板状のボルト締結部と、前記ボルト締結部とは別体に設けられ、電線と接続可能な電線接続部と、前記ボルト締結部に一体に設けられた締結部側固着部と、前記電線接続部に一体に設けられ、前記締結部側固着部に固着されて電気的に接続される電線接続部側固着部とを備えるところに特徴を有する。   The technology disclosed in this specification is a ground terminal, and a flat bolt fastening portion that can be bolted to an installation portion, and a wire connection that is provided separately from the bolt fastening portion and can be connected to an electric wire. A fastening portion side fixing portion integrally provided on the bolt fastening portion, and a wire connecting portion side integrally provided on the wire connection portion and fixed to the fastening portion side fixing portion and electrically connected thereto It is characterized in that it includes a fixing portion.

このような構成によると、ボルト締結部と、電線接続部とを個別に形成し、締結部側固着部と電線接続部側固着部とを固着させることでアース端子を構成することができるから、ボルト締結部側と電線接続部側の何れを形成する場合においても、ボルト締結部と電線接続部とが一体となったものを形成する場合に比べて、
金属板材を切り落とす面積が少なくて済み、歩留まりをよくすることができる。これにより、アース端子の製造コストを低減することができる。 According to such a configuration, since the bolt fastening portion and the wire connecting portion are individually formed, and the ground terminal can be configured by fixing the fastening portion side fixing portion and the wire connecting portion side fixing portion, Even when forming either the bolt fastening part side or the wire connection part side, compared to the case where the bolt fastening part and the wire connection part are integrated,
The area for cutting off the metal plate material is small, and the yield can be improved. Thereby, the manufacturing cost of a ground terminal can be reduced.

本明細書によって開示される技術の態様として、以下の構成が好ましい。
前記ボルト締結部は、前記電線接続部とは異なる金属によって形成されている構成としてもよい。
このような構成によると、設置部や電線の材質などに応じてボルト締結部や電線接続部を安価な金属によって形成することができるから、アース端子の製造コストをより低減することができる。 As an aspect of the technology disclosed by this specification, the following configurations are preferable.
The said bolt fastening part is good also as a structure currently formed with the metal different from the said electric wire connection part.
According to such a configuration, the bolt fastening portion and the wire connecting portion can be formed of an inexpensive metal according to the installation portion, the material of the electric wire, and the like, so that the manufacturing cost of the ground terminal can be further reduced.

前記締結部側固着部または電線接続部側固着部の何れか一方には、他方に圧着される固定片が設けられている構成としてもよい。
このような構成によると、締結部側固着部または電線接続部側固着部の何れか一方に設けられたバレルを他方に圧着することで、締結部側接続固着部と電線接続部側固着部とを強固に固着さることができる。これにより、特殊な治具を用いて締結部側接続固着部と電線接続部側固着部とを固着させる場合に比べて、締結部側接続固着部と電線接続部側固着部とを容易に固着させることができる。 It is good also as a structure by which the fixing piece crimped | bonded to the other is provided in any one of the said fastening part side adhering part or the electric wire connection part side adhering part.
According to such a configuration, the fastening part side connection fixing part and the wire connection part side fixing part can be obtained by crimping the barrel provided on either the fastening part side fixing part or the wire connection part side fixing part to the other. Can be firmly fixed. As a result, the fastening part side connection fixing part and the wire connection part side fixing part can be easily fixed as compared with the case where the fastening part side connection fixing part and the wire connection part side fixing part are fixed using a special jig. Can be made.

前記締結部側固着部と前記電線接続部側固着部とは、レーザ光を照射して溶接することにより互いに固着されている構成としてもよい。
このような構成によると、レーザ溶接によって締結部側接続固着部と電線接続部側固着部とを固着させることができるから、締結部側接続固着部と電線接続部側固着部とを特別な治具を用いて固着させる場合に比べて、締結部側接続固着部と電線接続部側固着部とを容易に固着させることができる。 The fastening portion side fixing portion and the wire connection portion side fixing portion may be configured to be fixed to each other by irradiating with laser light and welding.
According to such a configuration, the fastening portion side connection fixing portion and the wire connection portion side fixing portion can be fixed by laser welding, so that the fastening portion side connection fixing portion and the wire connection portion side fixing portion are specially treated. Compared with the case of fixing using a tool, the fastening portion side connection fixing portion and the wire connection portion side fixing portion can be easily fixed.

前記締結部側固着部と前記電線接続部側固着部との固着は、前記電線が引っ張られることで破断する構成としてもよい。
このような構成によると、電線が強く引っ張られ、アース端子に許容範囲以上の大きな力が加えられた際に、締結部側固着部と前記電線接続部側固着部との固着が破断させることができる。これにより、設置部から容易に電線を回収することができる。 The fastening between the fastening portion side fixing portion and the wire connection portion side fixing portion may be configured to be broken when the electric wire is pulled.
According to such a configuration, when the electric wire is strongly pulled and a large force exceeding an allowable range is applied to the ground terminal, the fixation between the fastening portion side fixing portion and the wire connection portion side fixing portion may be broken. it can. Thereby, an electric wire can be easily collect | recovered from an installation part.

また、本明細書によって開示される技術は、上記のアース端子を複数備えた組み合わせアース端子であって、前記ボルト締結部は、板厚方向に接触した積層状態に重ね合わされるようになっており、積層方向に隣り合う前記ボルト締結部の一方には、他方の前記ボルト締結部に設けられた被保持部と係合することで隣り合う前記ボルト締結部同士を積層状態に保持する保持部が設けられており、前記ボルト締結部は、同一の板材によって形成されることで板厚寸法が同一に設定されており、前記電線接続部のうち、少なくとも何れか１つの前記電線接続部が板厚寸法の異なる板材によって形成されているところに特徴を有する。   Further, the technology disclosed in the present specification is a combined ground terminal including a plurality of the above-described ground terminals, and the bolt fastening portion is overlapped in a stacked state in contact with the plate thickness direction. One of the bolt fastening portions adjacent in the stacking direction has a holding portion that holds the bolt fastening portions adjacent to each other in a stacked state by engaging with a held portion provided in the other bolt fastening portion. The bolt fastening portion is formed of the same plate material and has the same plate thickness dimension, and at least one of the wire connection portions has a plate thickness. It is characterized in that it is formed of plate materials having different dimensions.

一般に、電線径の太さに合わせて電線接続部の板厚寸法を変更するため、ボルト締結部と電線接続部とが一体となったアース端子からなる組み合わせアース端子の場合、一部に電線径の異なる電線が使用されていると、電線接続部と共にボルト締結部の板厚寸法まで変化してしまうことから、被保持部と保持部との係合に支障を来してしまう虞がある。   In general, in order to change the plate thickness of the wire connection part according to the thickness of the wire diameter, in the case of a combined earth terminal consisting of a ground terminal in which the bolt fastening part and the wire connection part are integrated, part of the wire diameter When different electric wires are used, the thickness of the bolt fastening portion is changed together with the wire connecting portion, which may cause an obstacle to the engagement between the held portion and the holding portion.

ところが、上記のような構成の組み合わせアース端子によると、ボルト締結部と電線接続部とが別体で構成されている。したがって、電線径が変化することによって電線接続部の板厚が変更されたとしても、ボルト締結部には影響がなく、ボルト締結部を同一の板材によって共通化することができる。したがって、ボルト締結部の板厚寸法を同一にすることができるから、被保持部と保持部との係合に支障を来すことがない。つまり、各アース端子の板厚寸法の微調整をすることなく、組み合わせアース端子を正規の状態に容易に組み付けることができる。これにより、例えば、電線径に合わせて組み付け状態を微調整する組み合わせアース端子に比べて、組み合わせアース端子の製造コストを低減することができる。   However, according to the combination ground terminal having the above-described configuration, the bolt fastening portion and the wire connecting portion are configured separately. Therefore, even if the plate thickness of the wire connecting portion is changed by changing the wire diameter, the bolt fastening portion is not affected, and the bolt fastening portion can be shared by the same plate material. Therefore, since the plate | board thickness dimension of a bolt fastening part can be made the same, it does not interfere with engagement with a to-be-held part and a holding part. That is, the combined ground terminal can be easily assembled in a normal state without fine adjustment of the thickness of each ground terminal. Thereby, for example, the manufacturing cost of the combined ground terminal can be reduced as compared with the combined ground terminal that finely adjusts the assembled state according to the wire diameter.

本明細書によって開示される技術によれば、アース端子の製造コストを低減する。   According to the technique disclosed by this specification, the manufacturing cost of a ground terminal is reduced.

実施形態１に係る組み合わせアース端子の斜視図The perspective view of the combination earthing terminal concerning Embodiment 1 同平面図Plan view 図２のＡ−Ａ線断面図AA line sectional view of FIG. 各アース端子を組み付ける前の状態を示す斜視図A perspective view showing a state before assembling each ground terminal 大径用アース端子の平面図Top view of large-diameter ground terminal 同底面図Bottom view 中径用アース端子の平面図Plan view of medium-diameter ground terminal 小径用アース端子の平面図Plan view of ground terminal for small diameter 実施形態２に係るアース端子の斜視図The perspective view of the ground terminal which concerns on Embodiment 2. 同側面図Side view 同底面図Bottom view

＜実施形態＞
実施形態について図１から図８を参照して説明する。
本実施形態は、車両のボディに設けられた図示しない設置部に図示しないボルトによって締結される組み合わせアース端子１０を例示している。なお、以下の説明において、上下方向とは、図１，図３および図４における上下方向を基準とする。また、前後方向とは、図５および図１０における図示左方を前方とし、図示右方を後方として説明する。 <Embodiment>
Embodiments will be described with reference to FIGS. 1 to 8.
This embodiment illustrates the combination ground terminal 10 fastened by a bolt (not shown) to an installation portion (not shown) provided on the body of the vehicle. In the following description, the vertical direction is based on the vertical direction in FIGS. 1, 3, and 4. The front-rear direction is described with the left side in FIGS. 5 and 10 as the front and the right side in the drawing as the rear.

組み合わせアース端子１０は、図１に示すように、複数（本実施形態では３つ））のアース端子２０を上下方向に積層して組み合わせる構成となっている。
各アース端子２０は、金属板材をプレスなどで加工することによって形成されており、設置部にボルト締結されるボルト締結部３０と、電線６０が接続される電線接続部４０と、ボルト締結部３０と電線接続部４０とを前後に連結する連結部５０とを備えて構成されている。 As shown in FIG. 1, the combination ground terminal 10 has a configuration in which a plurality (three in this embodiment) of ground terminals 20 are stacked and combined in the vertical direction.
Each ground terminal 20 is formed by processing a metal plate material with a press or the like. The bolt fastening portion 30 that is bolted to the installation portion, the wire connecting portion 40 to which the electric wire 60 is connected, and the bolt fastening portion 30. And the connection part 50 which connects the electric wire connection part 40 back and forth.

ボルト締結部３０は、図４から図８に示すように、略円形状をなす平板状に形成されており、ボルト締結部３０の中央には、ボルトが挿通可能なボルト挿通孔３１が板厚方向である上下方向に貫通して形成されている。
ボルト締結部３０の外周縁には、図４，図５，図７および図８に示すように、一対の被保持片（「被保持部」の一例）３２、一対の保持部３３および１つのロック片３４が設けられている。
一対の被保持片３２は、ボルト挿通孔３１を中心に対向した配置で設けられており、各被保持片３２は、ボルト締結部３０から径方向外側に突出する丸みを帯びた略矩形平板状をなしている。 As shown in FIGS. 4 to 8, the bolt fastening portion 30 is formed in a substantially circular flat plate shape, and a bolt insertion hole 31 through which a bolt can be inserted is formed at the center of the bolt fastening portion 30. It penetrates in the up-down direction which is a direction.
As shown in FIGS. 4, 5, 7, and 8, a pair of held pieces (an example of a “held portion”) 32, a pair of holding portions 33, and one A lock piece 34 is provided.
The pair of pieces to be held 32 are provided so as to face each other with the bolt insertion hole 31 as the center, and each piece to be held 32 is a substantially rectangular flat plate with a round shape protruding radially outward from the bolt fastening portion 30. I am doing.

一対の保持部３３は、一対の被保持片３２と同様に、ボルト挿通孔３１を中心に対向した配置で設けられており、各保持部３３は、ボルト締結部３０の外周縁において被保持片３２の周方向左側に隣接して配されている。また、各保持部３３は、ボルト締結部３０から径方向外側に突出した後、径方向内側に向けて上向きに折り返されて形成されており、各保持部３３内には、被保持片３２が嵌入することで、互いに係合可能とされている。ボルト締結部３０を上下に重ね合わせ、ボルト挿通孔３１を中心に何れか一方のボルト締結部３０を回転させると、図１から図３に示すように、上側に重ね合わされたボルト締結部３０の被保持片３２が保持部３３内にそれぞれ嵌入され、両ボルト締結部３０が積層状態に組み付けられるようになっている。   The pair of holding portions 33 are provided so as to face each other around the bolt insertion hole 31, similarly to the pair of held pieces 32, and each holding portion 33 is a piece to be held at the outer peripheral edge of the bolt fastening portion 30. 32 adjacent to the left side in the circumferential direction. Each holding portion 33 is formed by protruding outward from the bolt fastening portion 30 in the radial direction and then folded upward inward in the radial direction. In each holding portion 33, a piece 32 to be held is formed. By being inserted, they can be engaged with each other. When the bolt fastening portions 30 are stacked one on top of the other and one of the bolt fastening portions 30 is rotated around the bolt insertion hole 31, as shown in FIGS. 1 to 3, The held pieces 32 are respectively fitted into the holding portions 33, and both the bolt fastening portions 30 are assembled in a stacked state.

また、上下に重ね合わせた両ボルト締結部３０が正規の組付け位置に至ると、図３に示すように、被保持片３２が保持部３３内において上下方向から挟み付けられ、ボルト締結部３０が上下方向に密着した状態となることにより、上下方向に重なり合う（隣り合う）ボルト締結部３０同士が電気的に接続されるようになっている。   When the two bolt fastening portions 30 that are superposed on each other reach the proper assembly position, as shown in FIG. 3, the held piece 32 is sandwiched in the holding portion 33 from the top and bottom directions, and the bolt fastening portion 30. Are in close contact with each other in the vertical direction, so that the bolt fastening portions 30 overlapping (adjacent) in the vertical direction are electrically connected to each other.

ロック片３４は、図４，図５，図７および図８に示すように、ボルト締結部３０の前端から前方に突出する丸みを帯びた略矩形状に形成されており、ボルト締結部３０の外周縁におけるロック片３４の周方向右側には、一対の保持部３３のうちの１つの保持部３３が隣接して配されている。
ロック片３４の左側端部には、ロック片３４の上面から上方に突出するロック突起３５が設けられており、ロック片３４の右側端部にはロック孔３６が設けられている。 As shown in FIGS. 4, 5, 7, and 8, the lock piece 34 is formed in a rounded substantially rectangular shape that protrudes forward from the front end of the bolt fastening portion 30. One holding portion 33 of the pair of holding portions 33 is disposed adjacent to the right side in the circumferential direction of the lock piece 34 at the outer peripheral edge.
A lock protrusion 35 protruding upward from the upper surface of the lock piece 34 is provided at the left end portion of the lock piece 34, and a lock hole 36 is provided at the right end portion of the lock piece 34.

ロック突起３５は、上側に重ね合わされたボルト締結部３０のロック片３４におけるロック孔３６に嵌まり込むようになっており、図１および図２に示すように、ロック突起３５がロック孔３６に嵌まり込むことで、被保持片３２が保持部３３内に嵌入された状態にロックするようになっている。言い換えると、上下に重なり合った２枚のボルト締結部３０が正規の組付け位置に至ると、下側のボルト締結部３０のロック突起３５が上側のボルト締結部３０のロック孔３６に嵌まり込み、上下方向に重なり合うボルト締結部３０が電気的に接続された状態にロックされるようになっている。   The lock protrusion 35 is fitted into the lock hole 36 in the lock piece 34 of the bolt fastening portion 30 that is overlaid on the upper side, and the lock protrusion 35 is inserted into the lock hole 36 as shown in FIGS. By being fitted, the held piece 32 is locked in a state of being fitted in the holding portion 33. In other words, when the two bolt fastening portions 30 that overlap in the vertical direction reach the normal assembly position, the lock projection 35 of the lower bolt fastening portion 30 is fitted into the lock hole 36 of the upper bolt fastening portion 30. The bolt fastening portion 30 that overlaps in the vertical direction is locked in the electrically connected state.

一方、電線接続部４０は、図２，図５，図７および図８に示すように、ボルト締結部３０に比べて幅狭に形成されている。また、電線接続部４０は、電線径の太さによって形状が異なっており、図１および図４に示すアース端子２０は、上から順に、大径電線６０Ａに接続される大径用電線接続部４０Ａを有する大径用アース端子２０Ａ、中径電線６０Ｂに接続される中径用電線接続部４０Ｂを有する中径用アース端子２０Ｂ、小径電線６０Ｃに接続される小径用電線接続部４０Ｃを有する小径用アース端子２０Ｃとされている。なお、以下の説明において、アース端子２０および電線接続部４０において、大径用のもの、中径用のもの、小径用のものを区別する場合には、大径用のものの符号に添え字Ａを、中径用のものの符号に添え字Ｂを、小径用のものの符号に添え字Ｃを付し、区別せずに総称する場合には、符号に添え字を付さないものとする。   On the other hand, the wire connecting portion 40 is formed narrower than the bolt fastening portion 30 as shown in FIGS. Further, the shape of the electric wire connecting portion 40 varies depending on the thickness of the electric wire diameter, and the ground terminal 20 shown in FIGS. 1 and 4 is connected to the large diameter electric wire 60A in order from the top. A small-diameter having a large-diameter ground terminal 20A having 40A, a medium-diameter ground terminal 20B having a medium-diameter electric wire connection portion 40B connected to the medium-diameter electric wire 60B, and a small-diameter electric wire connection portion 40C being connected to the small-diameter electric wire 60C. The earth terminal 20C is used. In the following description, in the ground terminal 20 and the electric wire connecting portion 40, when distinguishing between the large diameter, the medium diameter, and the small diameter, the suffix A , The suffix B is added to the code for the medium diameter, and the suffix C is added to the code for the small diameter, and the suffix is not added to the reference.

大径用アース端子２０Ａの大径用電線接続部４０Ａは、図４から図６に示すように、底板４１Ａの前後方向略中央部に設けられた繋ぎ部４２を幅方向に２つ折りにして上下に重ねた形態をなしている。大径用電線接続部４０Ａの下側に配された底板４１Ａにおける後端両側縁には、一対のインシュレーションバレル片４３Ａが設けられており、大径用電線接続部４０Ａの上側に配された底板４１Ａにおける両側縁には一対の大径用ワイヤバレル片４４Ａが設けられている。そして、一対の大径用ワイヤバレル片４４Ａが大径電線６０Ａの端末において露出した芯線６１Ａに圧着されることで大径電線６０Ａの端末に大径用アース端子２０Ａが電気的に接続され、一対のインシュレーションバレル片４３Ａが絶縁被覆６２Ａに圧着されることで大径用電線接続部４０Ａが大径電線６０Ａの絶縁被覆６２Ａに固定されている。   As shown in FIGS. 4 to 6, the large-diameter electric wire connecting portion 40 </ b> A of the large-diameter ground terminal 20 </ b> A vertically It is in the form of overlapping. A pair of insulation barrel pieces 43A are provided on both side edges of the rear end of the bottom plate 41A disposed on the lower side of the large-diameter wire connection portion 40A, and are disposed on the upper side of the large-diameter wire connection portion 40A. A pair of large diameter wire barrel pieces 44A are provided on both side edges of the bottom plate 41A. The pair of large diameter wire barrel pieces 44A are crimped to the core wire 61A exposed at the end of the large diameter electric wire 60A, whereby the large diameter ground terminal 20A is electrically connected to the end of the large diameter electric wire 60A. The insulation barrel piece 43A is pressure-bonded to the insulation coating 62A, so that the large-diameter wire connecting portion 40A is fixed to the insulation coating 62A of the large-diameter wire 60A.

中径用アース端子２０Ｂにおける中径用電線接続部４０Ｂは、図４および図７に示すように、底板４１Ｂの後端両側縁に一対の中径用ワイヤバレル片４４Ｂのみが設けられた形態をなしており、この一対の中径用ワイヤバレル片４４Ｂが中径電線６０Ｂの端末において露出した芯線６１Ｂに圧着されることで中径電線６０Ｂの端末に中径用アース端子２０Ｂが電気的に接続固定されている。
小径用アース端子２０Ｃにおける小径用電線接続部４０Ｃは、図４および図８に示すように、中径用電線接続部４０Ｂの中径用ワイヤバレル片４４Ｂ部分を一回り小さくした形態をなしており、底板４１Ｃに設けられた一対の小径用ワイヤバレル片４４Ｃが小径電線６０Ｃの端末において露出した芯線６１Ｃに圧着されることで小径電線６０Ｃの端末に電気的に接続固定されている。 As shown in FIGS. 4 and 7, the medium-diameter electric wire connecting portion 40B in the medium-diameter ground terminal 20B has a configuration in which only a pair of medium-diameter wire barrel pieces 44B are provided on both side edges of the rear end of the bottom plate 41B. The pair of medium diameter wire barrel pieces 44B are crimped to the exposed core wire 61B at the end of the medium diameter electric wire 60B, so that the medium diameter ground terminal 20B is electrically connected to the end of the medium diameter electric wire 60B. It is fixed.
As shown in FIGS. 4 and 8, the small-diameter wire connecting portion 40C in the small-diameter ground terminal 20C has a configuration in which the medium-diameter wire barrel piece 44B is slightly smaller than the medium-diameter wire connecting portion 40B. The pair of small-diameter wire barrel pieces 44C provided on the bottom plate 41C are crimped to the core wire 61C exposed at the end of the small-diameter electric wire 60C, thereby being electrically connected and fixed to the end of the small-diameter electric wire 60C.

さて、連結部５０は、図１，図２，図４から図８に示すように、ボルト締結部３０の後端に一体に設けられた締結部側固着部３７と、各電線接続部４０の前端に一体に設けられた電線接続部側固着部４５とを電気的に接続可能に固定することで構成されている。言い換えると、ボルト締結部３０と、各電線接続部４０とは、個別に形成されており、ボルト締結部３０および電線接続部４０に設けられた固着部３７，４５同士を電気的に接続可能に固定することで各アース端子２０が構成されている。   As shown in FIGS. 1, 2, and 4 to 8, the connecting portion 50 includes a fastening portion side fixing portion 37 that is integrally provided at the rear end of the bolt fastening portion 30, and the wire connecting portions 40. It is comprised by fixing the electric wire connection part side adhering part 45 integrally provided in the front end so that electrical connection is possible. In other words, the bolt fastening part 30 and each electric wire connection part 40 are formed separately, and the fixing parts 37 and 45 provided in the bolt fastening part 30 and the electric wire connection part 40 can be electrically connected to each other. Each ground terminal 20 is configured by being fixed.

詳細には、図１，図２および図４に示すように、大径用電線接続部４０Ａ、中径用電線接続部４０Ｂ、小径用電線接続部４０Ｃの何れの電線接続部側固着部４５も、略矩形平板状に形成されており、各電線接続部４０の前端から前方向けて延出された形態をなしている。
また、各電線接続部４０は、銅または銅合金などからなり、図１および図４に示すように、電線径が小さくなるほど板厚寸法が薄くなるように電線径に合わせて金属板材の厚さ寸法が設定されている。したがって、中径用アース端子２０Ｂにおける中径用電線接続部４０Ｂは、中径電線６０Ｂの電線径に合わせて大径用電線接続部４０Ａの板厚寸法よりも薄い板材によって形成されている。また、小径用アース端子２０Ｃにおける小径用電線接続部４０Ｃは、小径電線６０Ｃの電線径に合わせて中径用電線接続部４０Ｂの板厚寸法よりもさらに薄い板材によって形成されている。 Specifically, as shown in FIGS. 1, 2, and 4, any of the wire connection portion side fixing portions 45 of the large-diameter wire connection portion 40A, the medium-diameter wire connection portion 40B, and the small-diameter wire connection portion 40C is used. It is formed in a substantially rectangular flat plate shape and extends forward from the front end of each wire connecting portion 40.
Each electric wire connecting portion 40 is made of copper or copper alloy, and as shown in FIGS. 1 and 4, the thickness of the metal plate material is adjusted to the electric wire diameter so that the plate thickness dimension decreases as the electric wire diameter decreases. The dimensions are set. Therefore, the medium-diameter wire connection portion 40B in the medium-diameter ground terminal 20B is formed of a plate material that is thinner than the plate thickness dimension of the large-diameter wire connection portion 40A according to the wire diameter of the medium-diameter wire 60B. Further, the small-diameter electric wire connecting portion 40C in the small-diameter ground terminal 20C is formed of a plate material that is thinner than the plate thickness dimension of the medium-diameter electric wire connecting portion 40B in accordance with the electric wire diameter of the small-diameter electric wire 60C.

一方、ボルト締結部３０の締結部側固着部３７は、図１，図２，図４から図８に示すように、電線接続部４０とは異なる金属であるステンレス鋼または鉄などからなり、ボルト締結部３０の後端から後方に延出されて形成されている。また、締結部側固着部３７は、略矩形状の底板部３８と、底板部３８の後端部両側縁に設けられた一対の固定片３９とを有している。   On the other hand, the fastening portion side fixing portion 37 of the bolt fastening portion 30 is made of stainless steel or iron, which is a metal different from the wire connecting portion 40, as shown in FIGS. The fastening portion 30 is formed to extend rearward from the rear end. The fastening portion side fixing portion 37 includes a substantially rectangular bottom plate portion 38 and a pair of fixing pieces 39 provided on both side edges of the rear end portion of the bottom plate portion 38.

一対の固定片３９は、底板部３８の両側縁から上方に立ち上がる略矩形平板状に形成されており、底板部３８の上面に電線接続部側固着部４５を重ね合わせ、一対の固定片３９を互いに近づけるようにして屈曲させることで電線接続部側固着部４５に圧着する。一対の固定片３９が電線接続部側固着部４５に圧着されると、図１および図４に示すように、一対の固定片３９が電線接続部側固着部４５の上面に面接触して、一対の固定片３９と底板部３８とで電線接続部側固着部４５を上下から挟み付けた状態となり、両固着部３７，４５が強固に固定される。   The pair of fixed pieces 39 is formed in a substantially rectangular flat plate shape that rises upward from both side edges of the bottom plate portion 38, and the wire connection portion side fixing portion 45 is overlapped on the upper surface of the bottom plate portion 38. The wire connection part side fixing part 45 is crimped by bending it so as to be close to each other. When the pair of fixed pieces 39 are crimped to the wire connection portion side fixing portion 45, as shown in FIGS. 1 and 4, the pair of fixed pieces 39 are in surface contact with the upper surface of the wire connection portion side fixing portion 45, The pair of fixing pieces 39 and the bottom plate portion 38 sandwich the wire connection portion side fixing portion 45 from above and below, and both the fixing portions 37 and 45 are firmly fixed.

つまり、電線径に合わせて電線接続部４０の電線接続部側固着部４５における板厚寸法が変更されたとしても、一対の固定片３９と底板部３８とによって電線接続部側固着部４５を挟み付け、締結部側固着部３７と電線接続部側固着部４５とを強固に固定することができる。これにより、特殊な固着用治具を用いることなく、底板部３８と電線接続部側固着部４５とをしっかりと面接触させた状態に固定し、ボルト締結部３０と各電線接続部４０とを電気的に接続させることができる。   That is, even if the plate thickness dimension of the wire connection portion side fixing portion 45 of the wire connection portion 40 is changed according to the wire diameter, the wire connection portion side fixing portion 45 is sandwiched between the pair of fixing pieces 39 and the bottom plate portion 38. The fastening portion side fixing portion 37 and the wire connection portion side fixing portion 45 can be firmly fixed. Thereby, without using a special fixing jig, the bottom plate portion 38 and the wire connection portion side fixing portion 45 are fixed in a state of being in firm surface contact, and the bolt fastening portion 30 and each wire connection portion 40 are fixed. It can be electrically connected.

また、ボルト締結部３０は、図４から図８に示すように、電線接続部４０とは異なり、各アース端子２０に共通に構成されており、図３に示すように、何れのアース端子２０におけるボルト締結部３０も同一の板厚寸法に設定されている。
つまり、ボルト締結部３０を上下方向に重ね合わせて積層状態に組み付ける際に、上下に重なるボルト締結部３０の板厚寸法が同一となるから、保持部３３によって被保持片３２をがたつき無く上下方向から挟み付けることができるようになっている。 4 to 8, the bolt fastening portion 30 is configured in common to each ground terminal 20 unlike the wire connection portion 40. As shown in FIG. The bolt fastening portion 30 is also set to the same plate thickness dimension.
In other words, when the bolt fastening portions 30 are stacked in the vertical direction and assembled in a stacked state, the plate thickness dimensions of the bolt fastening portions 30 that overlap vertically are the same, so that the held piece 32 is not rattled by the holding portion 33. It can be sandwiched from above and below.

本実施形態は、以上のような構成であって、続いて、各アース端子２０の組み立て手順の一例を説明すると共に、その作用および効果について説明する。
まず、ボルト締結部３０の締結部側固着部３７における底板部３８上に電線接続部４０の電線接続部側固着部４５を載置し、図５から図８に示すように、一対の固定片３９を電線接続部側固着部４５に圧着する。 The present embodiment has the above-described configuration. Subsequently, an example of an assembly procedure of each ground terminal 20 will be described, and its operation and effect will be described.
First, the wire connection portion side fixing portion 45 of the wire connection portion 40 is placed on the bottom plate portion 38 in the fastening portion side fixing portion 37 of the bolt fastening portion 30, and a pair of fixing pieces as shown in FIGS. 5 to 8. 39 is crimped to the wire connection portion side fixing portion 45.

ここで、各電線接続部４０は、電線径の太さに合わせて板厚寸法が異なっているけれども、一対の固定片３９と底板部３８とによって電線接続部側固着部４５を上下方向から挟み付けることができるから、締結部側固着部３７と電線接続部側固着部４５とを強固に固定することができる。これにより、ボルト締結部３０と各電線接続部４０とが電気的に接続され、大径用アース端子２０Ａ、中径用アース端子２０Ｂ、小径用アース端子２０Ｃの組み立てが完了する。   Here, although each wire connection portion 40 has a different plate thickness according to the thickness of the wire diameter, the wire connection portion side fixing portion 45 is sandwiched from above and below by the pair of fixing pieces 39 and the bottom plate portion 38. Therefore, the fastening portion side fixing portion 37 and the wire connection portion side fixing portion 45 can be firmly fixed. Thereby, the bolt fastening part 30 and each electric wire connection part 40 are electrically connected, and the assembly of the large-diameter ground terminal 20A, the medium-diameter ground terminal 20B, and the small-diameter ground terminal 20C is completed.

ところで、例えば、各アース端子を１枚の金属板材からプレスなどに形成すると、ボルト締結部よりも幅狭な電線接続部の幅方向両側方に大きく切り落とす部分が生じてしまう。また、切り落とす部分は、電線径が細くなって電線接続部が小さくなるほど大きくなり、歩留まりが悪くなることで各アース端子の製造コスト、ひいては組み合わせアース端子の製造コストが高くなってしまう嫌いがある。   By the way, for example, if each ground terminal is formed from a single metal plate material into a press or the like, there will be a portion that is largely cut off on both sides in the width direction of the wire connecting portion that is narrower than the bolt fastening portion. Further, the portion to be cut off becomes larger as the wire diameter becomes smaller and the wire connection portion becomes smaller, and the yield is worsened, so that the manufacturing cost of each ground terminal, and thus the manufacturing cost of the combined ground terminal, is increased.

ところが、本実施形態によると、ボルト締結部３０と、電線接続部４０とを個別に形成し、締結部側固着部３７と電線接続部側固着部４５とを固着させてアース端子２０を組み立てることができるから、ボルト締結部と電線接続部とが一体となったものに比べて、金属板材を切り落とす面積が少なくて済み、歩留まりをよくすることができる。
また、電線径が細くなると、図７および図８に示すように、電線径が太いものに比べて電線接続部４０の幅寸法がより小さくなるから、ボルト締結部３０の幅寸法と電線接続部４０の幅寸法との差が大きくなる場合には、さらに有効である。 However, according to the present embodiment, the bolt fastening portion 30 and the wire connecting portion 40 are formed separately, and the fastening portion side fixing portion 37 and the wire connecting portion side fixing portion 45 are fixed to assemble the ground terminal 20. Therefore, compared with the case where the bolt fastening portion and the electric wire connecting portion are integrated, the area for cutting off the metal plate material can be reduced, and the yield can be improved.
Further, when the wire diameter is reduced, as shown in FIGS. 7 and 8, the width dimension of the wire connecting portion 40 is smaller than that of the thick wire diameter, so that the width dimension of the bolt fastening portion 30 and the wire connecting portion are reduced. It is more effective when the difference from the width dimension of 40 becomes large.

また、ボルト締結部３０と、電線接続部４０とを個別に形成し、締結部側固着部３７と電線接続部側固着部４５とを固着させてアース端子２０を組み立てる場合、車両のボディにおける設置部に接続されるボルト締結部３０の素材を、設置部の材質に合わせて、銅または銅合金製の電線接続部４０よりも安価なステンレス鋼または鉄などの金属にできるから、アース端子２０、ひいては組み合わせアース端子１０の製造コストを低減させることができる。   Further, when the ground terminal 20 is assembled by separately forming the bolt fastening portion 30 and the wire connecting portion 40 and fixing the fastening portion side fixing portion 37 and the wire connecting portion side fixing portion 45, the installation in the vehicle body is performed. Since the material of the bolt fastening portion 30 connected to the portion can be made of a metal such as stainless steel or iron that is cheaper than the wire connecting portion 40 made of copper or copper alloy according to the material of the installation portion, As a result, the manufacturing cost of the combined earth terminal 10 can be reduced.

次に、組み合わせアース端子１０の組み付け手順の一例を説明すると共に、その作用および効果について説明する。
まず、はじめに各電線６０の端末に対応する各アース端子２０を接続する。大径用アース端子２０Ａの場合、大径用電線接続部４０Ａに大径電線６０Ａを載置し、大径電線６０Ａに一対の大径用ワイヤバレル片４４Ａおよび一対のインシュレーションバレル片４３Ａを圧着することで、大径電線６０Ａの端末に大径用アース端子２０Ａを接続固定する。 Next, an example of a procedure for assembling the combination ground terminal 10 will be described, and its operation and effect will be described.
First, each ground terminal 20 corresponding to the terminal of each electric wire 60 is connected. In the case of the large-diameter ground terminal 20A, the large-diameter electric wire 60A is placed on the large-diameter electric wire connecting portion 40A, and a pair of large-diameter wire barrel pieces 44A and a pair of insulation barrel pieces 43A are crimped to the large-diameter electric wire 60A. By doing so, the large-diameter ground terminal 20A is connected and fixed to the end of the large-diameter electric wire 60A.

また、中径用アース端子２０Ｂの場合、中径用電線接続部４０Ｂに中径電線６０Ｂを載置し、中径電線６０Ｂに一対の中径用ワイヤバレル片４４Ｂを圧着することで中径電線６０Ｂの端末に中径用アース端子２０Ｂを接続固定する。同様にして、小径電線６０Ｃの端末に小径用アース端子２０Ｃを接続固定する。
ここで、各電線６０に各電線接続部４０を固定する際に、電線径に合わせて電線接続部４０の板厚寸法が適切に設定されているから、各電線６０の芯線６１に対する各ワイヤバレル片４４の接続安定性を確保しつつ、各電線接続部４０と各電線６０とを強固に固定することができる。 Further, in the case of the medium-diameter ground terminal 20B, the medium-diameter electric wire 60B is placed on the medium-diameter electric wire connecting portion 40B, and a pair of medium-diameter wire barrel pieces 44B are crimped to the medium-diameter electric wire 60B. The medium diameter ground terminal 20B is connected and fixed to the terminal of 60B. Similarly, the small-diameter ground terminal 20C is connected and fixed to the end of the small-diameter electric wire 60C.
Here, when fixing each electric wire connection part 40 to each electric wire 60, since the plate | board thickness dimension of the electric wire connection part 40 is suitably set according to the electric wire diameter, each wire barrel with respect to the core wire 61 of each electric wire 60 is set. Each wire connection portion 40 and each wire 60 can be firmly fixed while securing the connection stability of the piece 44.

図４に示すように、各アース端子２０が各電線６０の端末に接続固定されたところで、ボルト挿通孔３１の位置を同軸に合わせつつ、小径用アース端子２０Ｃのボルト締結部３０上に中径用アース端子２０Ｂのボルト締結部３０を重ねる。このとき、小径用アース端子２０Ｃ一対の保持部３３に対して、中径用アース端子２０Ｂの一対の被保持片３２が左側に配されるように両アース端子２０Ｂ，２０Ｃを配置する。   As shown in FIG. 4, when each ground terminal 20 is connected and fixed to the end of each electric wire 60, the diameter of the bolt insertion hole 31 is adjusted to be coaxial with the medium diameter on the bolt fastening portion 30 of the small-diameter ground terminal 20 </ b> C. The bolt fastening portion 30 of the earth terminal 20B for the use is overlapped. At this time, both the ground terminals 20B and 20C are arranged so that the pair of held pieces 32 of the medium-diameter ground terminal 20B are arranged on the left side with respect to the pair of holding portions 33 of the small-diameter ground terminal 20C.

そして、ボルト挿通孔３１を中心に、小径用アース端子２０Ｃに対して中径用アース端子２０Ｂを時計回り方向に回動させる。すると、中径用アース端子２０Ｂのボルト締結部３０における一対の被保持片３２が、小径用アース端子２０Ｃの一対の保持部３３内に嵌入し、両ボルト締結部３０が正規の組み付け位置に至ることで、保持部３３によって被保持片３２が上下方向から挟み付けられる。これにより、小径用アース端子２０Ｃのボルト締結部３０と中径用アース端子２０Ｂのボルト締結部３０とが上下方向に密着した状態となり、小径用アース端子２０Ｃと中径用アース端子２０Ｂとが電気的に接続された状態に組み付けられる。   Then, the medium-diameter ground terminal 20B is rotated clockwise with respect to the small-diameter ground terminal 20C around the bolt insertion hole 31. Then, the pair of held pieces 32 in the bolt fastening portion 30 of the medium-diameter ground terminal 20B are fitted into the pair of holding portions 33 of the small-diameter ground terminal 20C, and both the bolt fastening portions 30 reach the proper assembly position. Thus, the held piece 32 is sandwiched by the holding portion 33 from the vertical direction. Accordingly, the bolt fastening portion 30 of the small-diameter ground terminal 20C and the bolt fastening portion 30 of the medium-diameter ground terminal 20B are in close contact with each other in the vertical direction, and the small-diameter ground terminal 20C and the medium-diameter ground terminal 20B are electrically connected. Assembled in a connected state.

また、小径用アース端子２０Ｃと中径用アース端子２０Ｂとが正規の組み付け位置に至ると、小径用アース端子２０Ｃのボルト締結部３０におけるロック片３４のロック突起３５が、中径用アース端子２０Ｂのボルト締結部３０におけるロック片３４のロック孔３６に嵌まり込み、両ボルト締結部３０が上下方向に密着した状態にロックされることで、小径用アース端子２０Ｃと中径用アース端子２０Ｂとが電気的に接続された状態にロックされる。   When the small-diameter ground terminal 20C and the medium-diameter ground terminal 20B reach the proper assembly position, the lock protrusion 35 of the lock piece 34 in the bolt fastening portion 30 of the small-diameter ground terminal 20C becomes the medium-diameter ground terminal 20B. The bolt fastening portion 30 is fitted into the lock hole 36 of the lock piece 34 and is locked in a state where both bolt fastening portions 30 are in close contact with each other in the vertical direction, so that the small-diameter ground terminal 20C and the medium-diameter ground terminal 20B Is locked in an electrically connected state.

小径用アース端子２０Ｃと中径用アース端子２０Ｂとの組み付けが完了したところで、中径用アース端子２０Ｂのボルト締結部３０上に大径用アース端子２０Ａのボルト締結部３０を重ね合わせ、小径用アース端子２０Ｃと中径用アース端子２０Ｂとの組み付けと同様の操作により、中径用アース端子２０Ｂと大径用アース端子２０Ａとを組み付ける。これにより、図１および図２に示すように、上から順に、大径用アース端子２０Ａ、中径用アース端子２０Ｂ、小径用アース端子２０Ｃが積層状態に組み付けられた組み合わせアース端子１０が完成する。   When the assembly of the small-diameter ground terminal 20C and the medium-diameter ground terminal 20B is completed, the bolt-fastening portion 30 of the large-diameter ground terminal 20A is superimposed on the bolt-fastening portion 30 of the medium-diameter ground terminal 20B. The medium-diameter ground terminal 20B and the large-diameter ground terminal 20A are assembled by the same operation as the assembly of the ground terminal 20C and the medium-diameter ground terminal 20B. Thereby, as shown in FIG. 1 and FIG. 2, the combined ground terminal 10 is completed in which the large-diameter ground terminal 20 </ b> A, the medium-diameter ground terminal 20 </ b> B, and the small-diameter ground terminal 20 </ b> C are assembled in order from the top. .

ここで、それぞれのボルト締結部３０同士の接続状態をみると、大径用アース端子２０Ａ、中径用アース端子２０Ｂおよび小径用アース端子２０Ｃのボルト締結部３０は、共通のボルト締結部３０として構成されており、全てのボルト締結部３０の板厚寸法が同一に設定されているから、図３に示すように、ボルト締結部３０を上下方向に重ね合わせて積層状態に組み付ける際に、保持部３３によって被保持片３２をがたつき無く上下方向から挟み付けることができる。つまり、各アース端子２０の板厚寸法の微調整をすることなく、組み合わせアース端子１０を構成することができるから、例えば、電線径に合わせて組み付け状態を微調整する組み合わせアース端子に比べて、組み合わせアース端子１０の製造コストを低減することができる。   Here, when the connection state of the respective bolt fastening portions 30 is viewed, the bolt fastening portions 30 of the large-diameter ground terminal 20A, the medium-diameter ground terminal 20B, and the small-diameter ground terminal 20C are the common bolt fastening portions 30. Since all the bolt fastening portions 30 are configured to have the same plate thickness, as shown in FIG. 3, the bolt fastening portions 30 are held when they are stacked in the vertical direction and assembled in a laminated state. The held piece 32 can be sandwiched from the vertical direction by the portion 33 without rattling. That is, since it is possible to configure the combined ground terminal 10 without finely adjusting the plate thickness dimension of each ground terminal 20, for example, compared to a combined ground terminal that finely adjusts the assembled state according to the wire diameter, The manufacturing cost of the combined earth terminal 10 can be reduced.

また、全てのボルト締結部３０の板厚寸法が同一に設定されているから、ロック片３４のロック突起３５がロック孔３６に嵌まり込んだ際に、上下に隣り合うボルト締結部３０同士を密着した状態に確実にロックすることができる。これにより、小径用アース端子２０Ｃと中径用アース端子２０Ｂとの間の接続安定性を確保することができる共に、中径用アース端子２０Ｂと大径用アース端子２０Ａとの間の接続安定性を確保することができる。ひいては、３枚のアース端子２０Ａ，２０Ｂ，２０Ｃを電気的に接続された状態に確実に保持することができる。   Moreover, since the plate | board thickness dimension of all the bolt fastening parts 30 is set the same, when the lock protrusion 35 of the lock piece 34 fits into the lock hole 36, the bolt fastening parts 30 adjacent to the upper and lower sides are mutually connected. It can be reliably locked in a close contact state. Accordingly, the connection stability between the small-diameter ground terminal 20C and the medium-diameter ground terminal 20B can be secured, and the connection stability between the medium-diameter ground terminal 20B and the large-diameter ground terminal 20A. Can be secured. As a result, the three ground terminals 20A, 20B, and 20C can be reliably held in an electrically connected state.

＜実施形態２＞
次に、実施形態２について図９から図１１を参照して説明する。
実施形態２のアース端子１２０は、実施形態１における連結部５０の形状を変更したものであって、実施形態１と共通する構成、作用、および効果については重複するため、その説明を省略する。また、実施形態１と同じ構成については同一の符号を用いるものとする。 <Embodiment 2>
Next, Embodiment 2 will be described with reference to FIGS.
The ground terminal 120 of the second embodiment is obtained by changing the shape of the connecting portion 50 in the first embodiment, and the configuration, operation, and effect common to the first embodiment are duplicated, and thus the description thereof is omitted. The same reference numerals are used for the same configurations as those in the first embodiment.

実施形態２の連結部１５０の締結部側固着部１３７は、図９から図１１に示すように、実施形態１の締結部側固着部３７における一対の固定片３９を無くすことにより、略矩形状の底板部１３８のみによって形成されており、ボルト締結部３０の締結部側固着部１３７と電線接続部４０の電線接続部側固着部４５とがレーザ光を照射して溶接することよって互いに固着されている。つまり、本実施形態によると、締結部側固着部１３７の構造を簡素化し、アース端子１２０の製造コストを低減することができるようになっている。   As shown in FIGS. 9 to 11, the fastening portion side fixing portion 137 of the coupling portion 150 of the second embodiment has a substantially rectangular shape by eliminating the pair of fixing pieces 39 in the fastening portion side fixing portion 37 of the first embodiment. The fastening part side fixing part 137 of the bolt fastening part 30 and the electric wire connection part side fixing part 45 of the electric wire connection part 40 are fixed to each other by irradiating with laser light and welding. ing. That is, according to this embodiment, the structure of the fastening portion side fixing portion 137 can be simplified, and the manufacturing cost of the ground terminal 120 can be reduced.

ところで、近年、アース端子が接続された電線は、通常使用を終えた後、電線部分をクレーン等によって引っ張り、アース端子を破断させることで、車両から電線部分を回収する。ここで、本実施形態によると、回収の際、電線６０が引っ張られ、アース端子１２０に対して許容範囲以上の大きな力が加えられた際には、溶接によって固着させた締結部側固着部３７と電線接続部側固着部４５との接続部分を破断させることができる。   By the way, in recent years, an electric wire to which a ground terminal is connected usually recovers the electric wire portion from the vehicle by pulling the electric wire portion with a crane or the like and breaking the ground terminal after finishing the normal use. Here, according to the present embodiment, at the time of recovery, when the electric wire 60 is pulled and a large force exceeding the allowable range is applied to the ground terminal 120, the fastening portion side fixing portion 37 fixed by welding. And the connecting portion between the wire connecting portion side fixing portion 45 and the wire connecting portion side fixing portion 45 can be broken.

つまり、本実施形態によると、アース端子１２０に対して、容易に破断させるための破断部を別途設けることなく、締結部側固着部１３７と電線接続部側固着部４５との固着を容易に破断させ、電線６０を回収することができる。これにより、破断部を設けるアース端子に比べて、アース端子１２０の構造を簡素化することができると共に、製造コストを低減させることができる。   That is, according to the present embodiment, the fixing between the fastening portion side fixing portion 137 and the wire connection portion side fixing portion 45 is easily broken without separately providing a breaking portion for easily breaking the ground terminal 120. The electric wire 60 can be recovered. Thereby, the structure of the ground terminal 120 can be simplified and the manufacturing cost can be reduced as compared with the ground terminal provided with the fracture portion.

＜他の実施形態＞
本明細書で開示される技術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、例えば次のような種々の態様も含まれる。
（１）上記実施形態では、３つのアース端子２０を組み合わせた組み合わせアース端子１０とした。しかしながら、これに限らず、２つのアース端子を組み合わせた組み合わせアース端子にしてもよく、４つ以上のアース端子を組み合わせたアース端子にしてもよい。また、アース端子を組み合わせることなく、１つのアース端子を単独で利用してもよい。
（２）上記実施形態では、ボルト締結部３０を電線接続部４０とは異なる金属によって構成した。しかしながら、これに限らず、ボルト締結部と電線接続部とを同一の金属によって構成してもよい。 <Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various aspects.
(1) In the above embodiment, the combined ground terminal 10 is formed by combining the three ground terminals 20. However, the present invention is not limited to this, and may be a combined ground terminal in which two ground terminals are combined, or a ground terminal in which four or more ground terminals are combined. Further, one earth terminal may be used alone without combining the earth terminals.
(2) In the above embodiment, the bolt fastening portion 30 is made of a metal different from the wire connecting portion 40. However, the present invention is not limited thereto, and the bolt fastening portion and the wire connecting portion may be made of the same metal.

（３）上記実施形態では、大径用アース端子２０Ａ、中径用アース端子２０Ｂ、小径用アース端子２０Ｃの３種類のアース端子を有する組み合わせアース端子１０として構成した。しかしながら、これに限らず、全てのアース端子が１種類のアース端子で構成された組み合わせアース端子でもよく、３つのアース端子のうちの２つのアース端子が同じ種類のアース端子であり、残りのアース端子が異なる種類のアース端子で構成された組み合わせアース端子であってもよい。
（４）上記実施形態では、ボルト締結部３０の外周縁部に被保持片３２および保持部３３を設けたアース端子２０として構成した。しかしながら、これに限らず、ボルト締結部の円形状の部分に被保持部および保持部の構造を設けてもよい。 (3) In the said embodiment, it comprised as the combined earth terminal 10 which has three types of earth terminals, 20A of large diameter ground terminals, 20B of medium diameter ground terminals, and 20C of small diameter ground terminals. However, the present invention is not limited to this, and may be a combination ground terminal in which all the ground terminals are constituted by one type of ground terminal, and two of the three ground terminals are the same type of ground terminal, and the remaining ground terminals. The terminal may be a combined earth terminal composed of different types of earth terminals.
(4) In the said embodiment, it comprised as the earthing terminal 20 which provided the to-be-held piece 32 and the holding | maintenance part 33 in the outer periphery part of the bolt fastening part 30. FIG. However, the present invention is not limited to this, and the structure of the held portion and the holding portion may be provided in a circular portion of the bolt fastening portion.

１０：組み合わせアース端子
２０，１２０：アース端子
２０Ａ：大径用アース端子
２０Ｂ：中径用アース端子
２０Ｃ：小径用アース端子
３０：ボルト締結部
３２：被保持片（被保持部）
３３：保持部
３７：締結部側固着部
３９：固定片
４０：電線接続部
４０Ａ：大径用電線接続部
４０Ｂ：中径用電線接続部
４０Ｃ：小径用電線接続部
４５：電線接続部側固着部
６０：電線
６０Ａ：大径電線
６０Ｂ：中径電線
６０Ｃ：小径電線 10: combination ground terminal 20, 120: ground terminal 20A: large diameter ground terminal 20B: medium diameter ground terminal 20C: small diameter ground terminal 30: bolt fastening portion 32: held piece (held portion)
33: Holding portion 37: Fastening portion side fixing portion 39: Fixed piece 40: Electric wire connecting portion 40A: Large diameter electric wire connecting portion 40B: Medium diameter electric wire connecting portion 40C: Small diameter electric wire connecting portion 45: Electric wire connecting portion side fixing Part 60: Electric wire 60A: Large diameter electric wire 60B: Medium diameter electric wire 60C: Small diameter electric wire

Claims (6)

設置部にボルト締結可能な平板状のボルト締結部と、
前記ボルト締結部とは別体に設けられ、電線と接続可能な電線接続部と、
前記ボルト締結部に一体に設けられた締結部側固着部と、
前記電線接続部に一体に設けられ、前記締結部側固着部に固着されて電気的に接続される電線接続部側固着部とを備えるアース端子。 A flat bolt fastening portion that can be bolted to the installation portion;
An electric wire connecting portion provided separately from the bolt fastening portion and connectable to an electric wire;
A fastening portion side fixing portion provided integrally with the bolt fastening portion;
An earth terminal provided with an electric wire connection part side adhering part provided integrally with the electric wire connection part, and adhering to the fastening part side adhering part and electrically connected thereto. 前記ボルト締結部は、前記電線接続部とは異なる金属によって形成されている請求項１に記載のアース端子。   The ground terminal according to claim 1, wherein the bolt fastening portion is formed of a metal different from the wire connection portion. 前記締結部側固着部または電線接続部側固着部の何れか一方には、他方に圧着される固定片が設けられている請求項１または請求項２に記載のアース端子。   The grounding terminal according to claim 1 or 2, wherein a fixing piece to be crimped to the other is provided on either one of the fastening part side fixing part or the wire connection part side fixing part. 前記締結部側固着部と前記電線接続部側固着部とは、レーザ光を照射して溶接することにより互いに固着されている請求項１または請求項２に記載のアース端子。   The grounding terminal according to claim 1 or 2, wherein the fastening portion side fixing portion and the wire connection portion side fixing portion are fixed to each other by irradiating and welding a laser beam. 前記締結部側固着部と前記電線接続部側固着部との固着は、前記電線が引っ張られることで破断する請求項４に記載のアース端子。   The ground terminal according to claim 4, wherein the fastening between the fastening portion side fixing portion and the wire connection portion side fixing portion is broken when the electric wire is pulled. 請求項１から請求項５の何れか一項に記載のアース端子を複数備えた組み合わせアース端子であって、
前記ボルト締結部は、板厚方向に接触した積層状態に重ね合わされるようになっており、
積層方向に隣り合う前記ボルト締結部の一方には、他方の前記ボルト締結部に設けられた被保持部と係合することで隣り合う前記ボルト締結部同士を積層状態に保持する保持部が設けられており、
前記ボルト締結部は、同一の板材によって形成されることで板厚寸法が同一に設定されており、
前記電線接続部のうち、少なくとも何れか１つの前記電線接続部が板厚寸法の異なる板材によって形成されている組み合わせアース端子。 A combined grounding terminal comprising a plurality of grounding terminals according to any one of claims 1 to 5,
The bolt fastening portion is adapted to be overlaid in a laminated state in contact with the plate thickness direction,
One of the bolt fastening portions adjacent to each other in the stacking direction is provided with a holding portion that holds the adjacent bolt fastening portions in a stacked state by engaging with a held portion provided in the other bolt fastening portion. And
The bolt fastening portion is formed of the same plate material, and the plate thickness dimension is set to be the same,
A combination ground terminal in which at least one of the wire connection portions is formed of plate materials having different plate thickness dimensions.
JP2014206922A 2014-10-08 2014-10-08 Earth terminal and combination earth terminal Pending JP2016076415A (en)

Priority Applications (2)

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JP2014206922A JP2016076415A (en) 2014-10-08 2014-10-08 Earth terminal and combination earth terminal
PCT/JP2015/076417 WO2016056372A1 (en) 2014-10-08 2015-09-17 Earth terminal and combination earth terminal

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JPS63146969U (en) * 1987-03-18 1988-09-28
JP3003499B2 (en) * 1994-03-25 2000-01-31 住友電装株式会社 Terminal connecting bracket and terminal unit using the same
JP3449332B2 (en) * 2000-02-24 2003-09-22 住友電装株式会社 Assembly structure of terminal fittings
JP2004111058A (en) * 2002-09-13 2004-04-08 Furukawa Electric Co Ltd:The Terminal for aluminum wire and connector
JP4592460B2 (en) * 2005-03-23 2010-12-01 矢崎総業株式会社 Terminal fitting
JP5817692B2 (en) * 2012-09-25 2015-11-18 株式会社オートネットワーク技術研究所 Electric wire with terminal and terminal

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