JP2018006296A

JP2018006296A - Wire with terminal and manufacturing method of wire with terminal

Info

Publication number: JP2018006296A
Application number: JP2016136124A
Authority: JP
Inventors: 上原　建彦; Tatsuhiko Uehara; 建彦上原; 敏夫岡崎; Toshio Okazaki
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2016-07-08
Filing date: 2016-07-08
Publication date: 2018-01-11
Anticipated expiration: 2036-07-08
Also published as: JP7060319B2

Abstract

PROBLEM TO BE SOLVED: To provide a wire with a terminal, capable of surely waterproofing a connection part of a terminal and a wire as much as possible.SOLUTION: A wire 1 with a terminal comprises: a cylindrical waterproof cover 40 that covers a connection part 23 of a wire 10 and a terminal 20; and a seal member 30 that is attached to the terminal 20 on a tip side of the terminal 20 from the connection part 23. The seal member 30 includes an annular shape revolving the terminal 20 in an axial line. An inner peripheral surface of the seal member 30 is adhered to the terminal 20, includes a convex strip part 31 that is projected to an outer direction of a radial direction from an outer peripheral surface of the seal member 30, and is extended so as to revolve in the outer peripheral surface. One opening end 41 of the waterproof cover 40 is arranged on the tip side of the terminal 20 from the convex strip part 31, and the convex strip part 31 and the waterproof cover 40 are adhered. The other opening end 42 is arranged on the wire 10 side from the terminal 20. The wire 10 and the waterproof cover 40 are adhered.SELECTED DRAWING: Figure 3

Description

本発明は、電線と、電線の端末部に電気的に接続された端子と、電線と端子との接続部を覆う防水カバーとを備えた端子付き電線、及び、そのような端子付き電線の製造方法、に関する。 The present invention relates to an electric wire, a terminal electrically connected to a terminal portion of the electric wire, a waterproof wire covering the connecting portion between the electric wire and the terminal, and a manufacturing method for such an electric wire with a terminal. Method.

従来から、端子付き電線の端子と電線（具体的には、絶縁被覆内の導体芯線）との接続部を防水するべく、接続部を覆うように筒状の防水カバーを設けた端子付き電線が提案されている。例えば、この種の端子付き電線として、熱収縮可能な樹脂等によって形成された筒状体（熱収縮チューブ）を上述した接続部を覆うように配置した後、その筒状体を熱収縮させて接続部およびその周辺に密着させた端子付き電線が挙げられる。 Conventionally, in order to waterproof the connection part between the terminal of the electric wire with terminal and the electric wire (specifically, the conductor core wire in the insulation coating), the electric wire with terminal provided with a cylindrical waterproof cover to cover the connection part has been provided. Proposed. For example, after arranging a cylindrical body (heat-shrinkable tube) formed of a heat-shrinkable resin or the like so as to cover the connecting portion described above as this type of terminal-attached electric wire, the cylindrical body is thermally contracted. Examples thereof include a terminal-attached electric wire brought into close contact with the connection portion and the periphery thereof.

上述した防水カバー（熱収縮チューブ）による防水法は、筒状体が収縮時に防水対象を密封できることを前提としている。ところが、例えば、電線および端子の径が大きいとき（いわゆる太物電線を用いるとき）、収縮後の筒状体と端子等との間に隙間が残り、接続部を十分に密封できない場合がある。このような隙間は、特に、端子のバレル部（加締め部）の周辺のように、防水対象に大きな凹凸が存在する箇所に生じ得る。このような隙間が生じた場合、その隙間から接続部に水分が侵入し得るため、十分な防水性が得られない可能性がある。 The waterproofing method using the waterproof cover (heat-shrinkable tube) described above is based on the premise that the waterproof object can be sealed when the cylindrical body contracts. However, for example, when the diameters of the electric wire and the terminal are large (when using a so-called thick electric wire), a gap may remain between the contracted tubular body and the terminal and the connection portion may not be sufficiently sealed. Such a gap may occur particularly in a place where large unevenness is present on the waterproof target, such as around the barrel portion (clamping portion) of the terminal. When such a gap is generated, moisture may enter the connecting portion from the gap, so that sufficient waterproofness may not be obtained.

そこで、例えば、従来の端子付き電線の一つ（以下「従来電線」という。）は、太物電線に防水カバー（熱収縮チューブ）を取り付けるにあたり、端子のバレル部の近傍に止水用の壁体を取り付け、この壁体に防水カバーを密着させるようになっている。換言すると、止水用の壁体により、筒状の防水カバーの開口端を塞ぐ（隙間に栓をする）ようになっている。これにより、防水カバーと端子等との間に隙間が生じることを防がれ、端子付き電線（太物電線）の防水性が向上することになる（例えば、特許文献１を参照。）。 Therefore, for example, one of the conventional electric wires with terminals (hereinafter referred to as “conventional electric wires”) is used to attach a waterproof cover (heat-shrinkable tube) to a thick electric wire. A body is attached and a waterproof cover is brought into close contact with the wall. In other words, the opening end of the cylindrical waterproof cover is closed (plugged in the gap) by the water stop wall. Thereby, it is prevented that a clearance gap arises between a waterproof cover, a terminal, etc., and the waterproofness of the electric wire with a terminal (thick thing electric wire) will improve (for example, refer to patent documents 1).

特開２０１２−１６９１２３号公報JP 2012-169123 A

ところで、実際に従来電線を用いる場合、従来電線の使用環境によっては、防水カバーに衝撃および押圧などの外力が及ぶ可能性がある。このとき、従来電線の防水カバーは止水用の壁体（隙間を塞ぐ栓）の外周面に面接触して密着しているに過ぎないため、外力が密着力を上回ると、防水カバーが壁体から分離（剥離）し、防水カバーと壁体との間に隙間が生じる場合がある。更に、従来電線の防水カバー（熱収縮チューブ）の収縮量にはある程度のばらつき（製造ばらつき・加工ばらつき）が生じ得るため、収縮量が小さく密着力が小さい場合、たとえ小さな外力であっても、上述した隙間の原因となり得る。 By the way, when a conventional electric wire is actually used, an external force such as impact and pressure may be applied to the waterproof cover depending on the usage environment of the conventional electric wire. At this time, since the waterproof cover of the conventional electric wire is merely in surface contact with the outer peripheral surface of the water stop wall (plug that closes the gap), if the external force exceeds the adhesive force, the waterproof cover Separation (peeling) from the body may cause a gap between the waterproof cover and the wall. Furthermore, the amount of shrinkage of the waterproof cover (heat-shrinkable tube) of conventional wires can vary to some extent (manufacturing variation and processing variation), so even if the amount of shrinkage is small and the adhesion is small, even with a small external force, It can cause the gaps described above.

このような隙間が生じると、端子付き電線の防水性が損なわれる。そこで、端子付き電線に防水カバーを取り付ける際、このような隙間の発生を出来る限り防止することが望ましい。 When such a gap occurs, the waterproof property of the electric wire with terminal is impaired. Therefore, it is desirable to prevent the occurrence of such a gap as much as possible when attaching a waterproof cover to the electric wire with terminal.

本発明は、上述した事情に鑑みてなされたものであり、その目的は、端子と電線との接続部を防水カバーによって出来る限り確実に防水することが可能な端子付き電線、及び、端子付き電線の製造方法、を提供することにある。 The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a terminal-attached electric wire capable of waterproofing a connecting portion between the terminal and the electric wire as reliably as possible with a waterproof cover, and a terminal-attached electric wire. It is in providing the manufacturing method of this.

前述した目的を達成するために、本発明に係る「端子付き電線」は、下記（１）〜（３）を特徴としている。
（１）
電線と、前記電線の端末部に電気的に接続された端子と、前記電線と前記端子との接続部を覆う筒状の防水カバーと、前記接続部よりも前記端子の先端側に取り付けられ且つ前記端子と前記防水カバーとの間の空間を埋めるシール部材と、を備えた、端子付き電線であって、
前記シール部材は、
前記端子を軸線周りに周回する環形状を有し、該シール部材の内周面が前記端子に密着すると共に、該シール部材の外周面から径方向外向きに突出し且つ前記外周面を周回するように延びる凸条部を有し、
前記防水カバーは、
一方の開口端が前記凸条部よりも前記端子の先端側にあり且つ前記凸条部と該防水カバーとが密着し、他方の開口端が前記端子よりも前記電線側にあり且つ前記電線と該防水カバーとが密着する、
端子付き電線であること。
（２）
上記（１）に記載の端子付き電線において、
前記シール部材が、複数の前記凸条部を前記外周面に有する、
端子付き電線であること。
（３）
上記（１）又は上記（２）に記載の端子付き電線において、
前記端子が、前記接続部よりも該端子の先端側に係止部を有し、
前記シール部材が、前記係止部に対応する被係止部を有すると共に、前記係止部に前記被係止部が係止されることによって前記端子に取り付けられている、
端子付き電線であること。 In order to achieve the above-described object, the “wire with terminal” according to the present invention is characterized by the following (1) to (3).
(1)
An electric wire, a terminal electrically connected to a terminal portion of the electric wire, a cylindrical waterproof cover that covers a connection portion between the electric wire and the terminal, and attached to the distal end side of the terminal from the connection portion; A seal member that fills a space between the terminal and the waterproof cover, and an electric wire with a terminal,
The sealing member is
The terminal has an annular shape that circulates around the axis, the inner peripheral surface of the seal member is in close contact with the terminal, protrudes radially outward from the outer peripheral surface of the seal member, and circulates around the outer peripheral surface Has a ridge extending to
The waterproof cover is
One open end is closer to the tip side of the terminal than the ridge, the ridge and the waterproof cover are in close contact, and the other open end is closer to the wire than the terminal, and the wire The waterproof cover is in close contact,
It is an electric wire with a terminal.
(2)
In the electric wire with a terminal according to the above (1),
The seal member has a plurality of the ridges on the outer peripheral surface,
It is an electric wire with a terminal.
(3)
In the electric wire with a terminal according to the above (1) or (2),
The terminal has a locking part on the tip side of the terminal rather than the connection part,
The seal member has a locked portion corresponding to the locking portion, and is attached to the terminal by locking the locked portion to the locking portion.
It is an electric wire with a terminal.

上記（１）の構成の端子付き電線によれば、環形状のシール部材がその外周面に凸条部（換言すると、外周面を周回する凸形状のリブ）を有しており、このシール部材（具体的には、凸条部）に防水カバーが密着するようになっている。別の言い方をすると、防水カバーとシール部材とが密着したとき、凸条部が防水カバーに食い込んだ状態となっている。このようなリブの食い込みにより、従来電線に比べ、防水カバーに外力が及んだ場合であっても、防水カバーとシール部材とが相対移動し難い（分離し難い）ことになる。 According to the terminal-attached electric wire having the configuration of (1) above, the ring-shaped seal member has a protruding portion (in other words, a convex rib that circulates around the outer peripheral surface) on the outer peripheral surface thereof. The waterproof cover is in close contact with the (specifically, the ridge). In other words, when the waterproof cover and the seal member are in close contact with each other, the ridges are in a state of biting into the waterproof cover. Due to the biting of the ribs, the waterproof cover and the seal member are difficult to move relative to each other even if an external force is applied to the waterproof cover as compared with the conventional electric wire (not easily separated).

更に、仮に防水カバーがシール部材から分離（剥離）しても、従来電線では隙間（水分の侵入経路）の形状が平面状であるのに対し、本構成の端子付き電線では、隙間の形状が凸条部に沿った曲面状となる。よって、防水カバーとシール部材との間に隙間が生じた場合であっても、従来電線に比べ、水分が接続部に侵入し難いことになる。 Furthermore, even if the waterproof cover is separated (separated) from the sealing member, the shape of the gap (moisture intrusion route) is flat in the conventional electric wire, whereas in the electric wire with terminal of this configuration, the shape of the gap is It becomes a curved surface along the ridge. Therefore, even when a gap is generated between the waterproof cover and the seal member, it is difficult for moisture to enter the connecting portion as compared with the conventional electric wire.

したがって、本構成の端子付き電線は、端子と電線との接続部を防水カバーによって出来る限り確実に防水することが可能である。 Therefore, the electric wire with a terminal of this structure can waterproof the connection part of a terminal and an electric wire as reliably as possible with a waterproof cover.

上記（２）の構成の端子付き電線によれば、複数の凸条部が防水カバーに食い込んだ状態となる。そのため、凸条部が１つである場合に比べ、防水カバーとシール部材との相対移動が更に困難となる。更に、仮に両者の間に隙間が生じても、隙間（水分の侵入経路）の形状が凸条部が１つである場合よりも複雑な形状となるため、水分の侵入が更に困難となる。よって、本構成の端子付き電線は、端子と電線との接続部を更に確実に防水することが可能である。 According to the electric wire with a terminal having the configuration (2), the plurality of protruding strips are in a state of being bitten into the waterproof cover. Therefore, relative movement between the waterproof cover and the seal member becomes more difficult as compared with the case where there is one ridge. Furthermore, even if a gap is generated between the two, the shape of the gap (moisture intrusion path) is more complicated than the case where there is only one ridge, so that it is more difficult for moisture to enter. Therefore, the electric wire with a terminal of this structure can waterproof the connection part of a terminal and an electric wire still more reliably.

上記（３）の構成の端子付き電線によれば、端子とシール部材との係止により、シール部材が端子に対して所定の位置（例えば、係止部の位置）に位置決めされることになる。そのため、シール部材の取り付け位置のばらつきが小さくなり、シール部材の取り付け位置のズレ等に起因して防水性が低下することを防止できる。 According to the terminal-attached electric wire having the configuration (3), the sealing member is positioned at a predetermined position (for example, the position of the locking portion) with respect to the terminal by the locking between the terminal and the sealing member. . Therefore, the variation in the attachment position of the seal member is reduced, and it is possible to prevent the waterproof property from being deteriorated due to a shift in the attachment position of the seal member.

更に、前述した目的を達成するために、本発明に係る「端子付き電線の製造方法」は、下記（４）を特徴としている。
（４）
電線と、前記電線の端末部に電気的に接続された端子と、前記電線と前記端子との接続部を覆う筒状の防水カバーと、前記接続部よりも前記端子の先端側に取り付けられ且つ前記端子と前記防水カバーとの間の空間を埋めるシール部材と、を備えた端子付き電線の製造方法であって、
前記シール部材は、
前記端子を軸線周りに周回する環形状を有し、該シール部材の内周面が前記端子に密着すると共に、該シール部材の外周面から径方向外向きに突出し且つ前記外周面を周回するように延びる凸条部を有し、
該製造方法は、
前記電線の端末部に前記端子を電気的に接続する工程と、
前記接続部よりも前記端子の先端側において、前記端子に前記シール部材を取り付ける工程と、
前記防水カバーの一方の開口端が前記凸条部よりも前記端子の先端側にあり且つ他方の開口端が前記端子よりも前記電線側にあるように、前記防水カバーを配置する工程と、
配置された前記防水カバーを前記端子に向けて収縮させることにより、前記凸条部と前記防水カバーとを密着させ且つ前記電線と前記防水カバーとを密着させる工程と、を含む、
端子付き電線の製造方法であること。 Furthermore, in order to achieve the above-mentioned object, the “method for manufacturing an electric wire with terminal” according to the present invention is characterized by the following (4).
(4)
An electric wire, a terminal electrically connected to a terminal portion of the electric wire, a cylindrical waterproof cover that covers a connection portion between the electric wire and the terminal, and attached to the distal end side of the terminal from the connection portion; A sealing member that fills a space between the terminal and the waterproof cover, and a method of manufacturing a terminal-attached electric wire,
The sealing member is
The terminal has an annular shape that circulates around the axis, the inner peripheral surface of the seal member is in close contact with the terminal, protrudes radially outward from the outer peripheral surface of the seal member, and circulates around the outer peripheral surface Has a ridge extending to
The manufacturing method is as follows:
Electrically connecting the terminal to a terminal portion of the electric wire;
At the tip end side of the terminal with respect to the connecting portion, attaching the seal member to the terminal;
Placing the waterproof cover such that one open end of the waterproof cover is closer to the tip of the terminal than the ridge and the other open end is closer to the electric wire than the terminal;
Including shrinking the arranged waterproof cover toward the terminal, thereby bringing the protruding portion and the waterproof cover into close contact with each other, and bringing the electric wire and the waterproof cover into close contact with each other.
It is a manufacturing method of the electric wire with a terminal.

上記（４）の構成の端子付き電線の製造方法によれば、上記（１）と同様、環形状のシール部材がその外周面に凸条部（換言すると、外周面を周回する凸形状のリブ）を有しており、このシール部材（具体的には、凸条部）に防水カバーを密着させることになる。別の言い方をすると、防水カバーとシール部材とを密着させたとき、凸条部が防水カバーに食い込むことになる。このようなリブの食い込みにより、従来電線に比べ、防水カバーに外力が及んだ場合であっても、防水カバーとシール部材とが相対移動し難い（分離し難い）ことになる。更に、仮に防水カバーがシール部材から分離（剥離）しても、従来電線では隙間（水分の侵入経路）の形状が平面状であるのに対し、本構成の製造方法では、隙間の形状が凸条部に沿った曲面状となる。よって、防水カバーとシール部材との間に隙間が生じた場合であっても、従来電線に比べ、水分が接続部に侵入し難いことになる。 According to the method for manufacturing an electric wire with a terminal having the configuration of (4), the ring-shaped sealing member has a protruding strip portion on its outer peripheral surface (in other words, a convex rib that circulates around the outer peripheral surface), as in the above (1). ), And the waterproof cover is brought into close contact with the seal member (specifically, the ridge portion). In other words, when the waterproof cover and the seal member are brought into close contact with each other, the ridges bite into the waterproof cover. Due to the biting of the ribs, the waterproof cover and the seal member are difficult to move relative to each other even if an external force is applied to the waterproof cover as compared with the conventional electric wire (not easily separated). Furthermore, even if the waterproof cover is separated (peeled) from the sealing member, the gap (moisture intrusion path) is flat in the conventional electric wire, whereas in the manufacturing method of this configuration, the gap is convex. It becomes a curved surface shape along the strip. Therefore, even when a gap is generated between the waterproof cover and the seal member, it is difficult for moisture to enter the connecting portion as compared with the conventional electric wire.

したがって、本構成の端子付き電線の製造方法は、端子と電線との接続部を防水カバーによって出来る限り確実に防水することが可能である。 Therefore, the manufacturing method of the electric wire with a terminal of this structure can waterproof the connection part of a terminal and an electric wire as reliably as possible with a waterproof cover.

本発明によれば、端子と電線との接続部を防水カバーによって出来る限り確実に防水することが可能な端子付き電線、及び、端子付き電線の製造方法、を提供できる。 ADVANTAGE OF THE INVENTION According to this invention, the electric wire with a terminal which can waterproof the connection part of a terminal and an electric wire as reliably as possible with a waterproof cover, and the manufacturing method of an electric wire with a terminal can be provided.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態（以下「実施形態」という。）を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading a form for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings.

図１は、本発明の実施形態に係る端子付き電線の製造過程を示す第１の図であり、図１（ａ）は、電線の端末部から露出させた導体芯線に端子を電気的に接続させた状態を示し、図１（ｂ）は、図１（ａ）の端子にシール部材を取り付けた状態を示す。FIG. 1 is a first view showing a manufacturing process of a terminal-attached electric wire according to an embodiment of the present invention, and FIG. 1 (a) electrically connects a terminal to a conductor core wire exposed from a terminal portion of the electric wire. FIG. 1B shows a state in which a seal member is attached to the terminal of FIG. 図２は、本発明の実施形態に係る端子付き電線の製造過程を示す第２の図であり、図２（ａ）は、図１（ｂ）の端子付き電線に防水カバー（収縮前）を配置した状態を示し、図２（ｂ）は、防水カバーを収縮させて端子等に密着させた状態を示す。FIG. 2 is a second view showing the manufacturing process of the electric wire with terminal according to the embodiment of the present invention, and FIG. 2A shows a waterproof cover (before shrinkage) applied to the electric wire with terminal of FIG. FIG. 2B shows a state in which the waterproof cover is contracted and brought into close contact with a terminal or the like. 図３は、図２（ｂ）のＡ−Ａ断面図である。FIG. 3 is a cross-sectional view taken along the line AA in FIG. 図４は、図３に示すシール部材の周囲を拡大した拡大図である。FIG. 4 is an enlarged view in which the periphery of the seal member shown in FIG. 3 is enlarged. 図５は、本発明の実施形態の変形例に係る端子付き電線における図４に対応する図である。FIG. 5 is a view corresponding to FIG. 4 in a terminal-attached electric wire according to a modification of the embodiment of the present invention. 図６は、本発明の実施形態の他の変形例に係る端子付き電線における図４に対応する図である。FIG. 6 is a view corresponding to FIG. 4 in a terminal-attached electric wire according to another modification of the embodiment of the present invention.

＜実施形態＞
以下、図面を参照しながら、本発明の実施形態に係る端子付き電線について説明する。 <Embodiment>
Hereinafter, the electric wire with a terminal concerning the embodiment of the present invention is explained, referring to drawings.

図１及び図２は、本発明の実施形態に係る端子付き電線１の製造過程を順に説明するための図である。特に、図２（ｂ）は、最終的な（完成した状態の）端子付き電線１を示す。図３は、完成した端子付き電線１の主要部の断面図（図２（ｂ）のＡ−Ａ断面図）である。図４は、図３に示す後述するシール部材３０の周囲を拡大して示す断面図である。 FIG.1 and FIG.2 is a figure for demonstrating in order the manufacturing process of the electric wire 1 with a terminal which concerns on embodiment of this invention. In particular, FIG. 2B shows the final (completed) terminal-attached electric wire 1. FIG. 3 is a cross-sectional view (A-A cross-sectional view of FIG. 2B) of the main part of the completed electric wire with terminal 1. FIG. 4 is an enlarged cross-sectional view showing a periphery of a later-described seal member 30 shown in FIG.

図１〜図４から理解されるように、端子付き電線１は、電線１０と、端子２０と、シール部材３０と、防水カバー４０と、を備える。 As understood from FIGS. 1 to 4, the terminal-attached electric wire 1 includes an electric wire 10, a terminal 20, a seal member 30, and a waterproof cover 40.

図１（ａ）に示すように、電線１０は、複数の金属細線を撚り合わせて形成された導体芯線１１と、導体芯線１１の周囲を被覆する合成樹脂製の絶縁被覆１２と、から構成されている。導体芯線１１は、必ずしも撚り線である必要はなく、金属製の単線であってもよい。なお、電線１０の端末部では、導体芯線１１と端子２０との接続に際し、絶縁被覆１２が除去（皮むき）されて導体芯線１１が露出している。 As shown in FIG. 1A, the electric wire 10 is composed of a conductor core wire 11 formed by twisting a plurality of fine metal wires and an insulating coating 12 made of a synthetic resin that covers the periphery of the conductor core wire 11. ing. The conductor core wire 11 is not necessarily a stranded wire, and may be a single metal wire. In addition, in the terminal part of the electric wire 10, when connecting the conductor core wire 11 and the terminal 20, the insulation coating 12 is removed (peeled) and the conductor core wire 11 is exposed.

図１（ａ）に示すように、端子２０は、先端側から順に、アース固定部２１、中間部２２、及び、接続部２３を備える。なお、端子２０は、一枚の金属板に対して周知のプレス加工および折り曲げ加工などを施すことにより、アース固定部２１、中間部２２及び接続部２３が一体的に形成されている。 As shown in FIG. 1A, the terminal 20 includes a ground fixing portion 21, an intermediate portion 22, and a connection portion 23 in order from the distal end side. Note that the terminal 20 is integrally formed with a ground fixing portion 21, an intermediate portion 22, and a connecting portion 23 by performing known press processing and bending processing on a single metal plate.

アース固定部２１は、本例では、直線状に（図１の紙面の奥行き方向に）延びる金属板の先端部を下方に向けてＬ字状に屈曲して形成された平板状の部分であり、端子２０を接地（アース）するために接地部（図示省略）に固定される部分である。アース固定部２１には、端子２０を接地部にボルト締結するためのボルト孔２１ａ（貫通孔）が形成されている。 In this example, the earth fixing part 21 is a flat part formed by bending the tip part of a metal plate extending in a straight line (in the depth direction of the paper surface of FIG. 1) downward in an L shape. This is a portion fixed to a grounding portion (not shown) for grounding the terminal 20. The ground fixing portion 21 is formed with a bolt hole 21a (through hole) for bolting the terminal 20 to the ground portion.

中間部２２は、アース固定部２１の基部（屈曲部）から連続して端子２０の後端側に直線状に延びる平板状の部分であり、後述するシール部材３０を取り付けるための部分である。中間部２２には、シール部材３０を位置決めするための位置決め孔２２ａ（貫通孔）が形成されている。 The intermediate part 22 is a flat part extending linearly from the base part (bent part) of the ground fixing part 21 to the rear end side of the terminal 20 and is a part for attaching a seal member 30 described later. A positioning hole 22 a (through hole) for positioning the seal member 30 is formed in the intermediate portion 22.

接続部２３は、中間部２２の後端部から連続して端子２０の後端側に直線状に延びる部分であり、電線１０と端子２０とを接続・固定する部分である。接続部２３の先端側および後端側には、中間部２２の後端側の底板部２２ｂから連続する底板部の幅方向両端部から上方に向けて延びる一対の第１バレル部２３ａ、及び、一対の第２バレル部２３ｂが、それぞれ形成されている。 The connection part 23 is a part that extends linearly from the rear end part of the intermediate part 22 to the rear end side of the terminal 20, and is a part that connects and fixes the electric wire 10 and the terminal 20. A pair of first barrel portions 23a extending upward from both ends in the width direction of the bottom plate portion continuous from the bottom plate portion 22b on the rear end side of the intermediate portion 22 on the front end side and the rear end side of the connection portion 23, and A pair of second barrel portions 23b are respectively formed.

図１（ａ）に示すように、一対の第１バレル部２３ａが電線１０の端末部にて露出した導体芯線１１に圧着固定され、一対の第２バレル部２３ｂが電線１０の絶縁被覆１２に圧着固定されることにより、電線１０と端子２０とが端子２０の接続部２３にて接続・固定される。 As shown in FIG. 1A, the pair of first barrel portions 23 a is fixed by crimping to the conductor core wire 11 exposed at the end portion of the electric wire 10, and the pair of second barrel portions 23 b is attached to the insulating coating 12 of the electric wire 10. By being crimped and fixed, the electric wire 10 and the terminal 20 are connected and fixed at the connection portion 23 of the terminal 20.

電線１０と端子２０とが接続部２３にて接続・固定された後、図１（ｂ）に示すように、端子２０の中間部２２にシール部材３０が取り付けられる。 After the electric wire 10 and the terminal 20 are connected and fixed at the connecting portion 23, the seal member 30 is attached to the intermediate portion 22 of the terminal 20 as shown in FIG.

図１（ｂ）、図３及び図４から理解されるように、シール部材３０は、矩形状の環状部材である。シール部材３０は、端子２０の温度変化による膨張・収縮に対応して変形可能であるように、弾性的性質を有するゴム及び合成樹脂などから形成されることが好ましい。シール部材３０の内周面は、端子２０の中間部２２の外表面と全周に亘って密着し得るように、中間部２２の断面形状と同じ断面形状、又は、中間部２２の断面形状に対して僅かに小さい相似形の断面形状を有している。本例では、シール部材３０は、端子２０から独立した別部材として準備されており、図１（ｂ）に示す工程において端子２０に取り付けられる。なお、後述するように、シール部材３０は端子２０に一体的に成形されてもよい。 As understood from FIGS. 1B, 3, and 4, the seal member 30 is a rectangular annular member. The seal member 30 is preferably formed from rubber having an elastic property, synthetic resin, or the like so that the seal member 30 can be deformed corresponding to expansion / contraction due to a temperature change of the terminal 20. The inner peripheral surface of the seal member 30 has the same cross-sectional shape as the cross-sectional shape of the intermediate part 22 or the cross-sectional shape of the intermediate part 22 so that the outer surface of the intermediate part 22 of the terminal 20 can be in close contact with the entire periphery. On the other hand, it has a slightly smaller cross-sectional shape. In this example, the seal member 30 is prepared as a separate member independent of the terminal 20, and is attached to the terminal 20 in the step shown in FIG. As will be described later, the seal member 30 may be integrally formed with the terminal 20.

シール部材３０の外周面における軸線方向の中央部には、径方向外向きに突出し且つ外周面を周回するように延びる凸条部３１（リブ）が設けられている。更に、特に図３及び図４（断面図）に示すように、シール部材３０の内周面の上面における軸線方向の中央部には、下向きに突出する突起３２が設けられている。この突起３２が端子２０の位置決め孔２２ａに挿入されることにより、シール部材３０が位置決めされている。 A protruding portion 31 (rib) that protrudes radially outward and extends around the outer peripheral surface is provided at the central portion in the axial direction on the outer peripheral surface of the seal member 30. Further, as shown in particular in FIGS. 3 and 4 (cross-sectional views), a protrusion 32 that protrudes downward is provided at the center in the axial direction on the upper surface of the inner peripheral surface of the seal member 30. The protrusion 32 is inserted into the positioning hole 22a of the terminal 20 so that the seal member 30 is positioned.

より詳細に述べると、図１（ｂ）に示すように、シール部材３０は、端子２０のアース固定部２１の先端部から挿入されて端子２０の中間部２２の所定位置（即ち、接続部２３より端子２０の先端側の位置）まで移動されることにより、中間部２２に取り付けられる。その際、図３及び図４に示すように、シール部材３０の突起３２が中間部２２の位置決め孔２２ａに挿入（係止）される。これにより、シール部材３０が中間部２２の所定位置に適切に位置決めされると共に、シール部材３０の内周面が中間部２２の外周面と全周に亘って密着する。なお、シール部材３０の内周面と中間部２２の外周面との密着性向上のため、密着部分にプライマー層（接着剤層など）を介在させてもよい。 More specifically, as shown in FIG. 1B, the seal member 30 is inserted from the distal end portion of the ground fixing portion 21 of the terminal 20 to be in a predetermined position (that is, the connection portion 23) of the intermediate portion 22 of the terminal 20. The terminal 20 is attached to the intermediate portion 22 by being moved to the position on the tip side of the terminal 20. At that time, as shown in FIGS. 3 and 4, the protrusion 32 of the seal member 30 is inserted (locked) into the positioning hole 22 a of the intermediate portion 22. Thereby, the seal member 30 is appropriately positioned at a predetermined position of the intermediate portion 22, and the inner peripheral surface of the seal member 30 is in close contact with the outer peripheral surface of the intermediate portion 22 over the entire periphery. In order to improve the adhesion between the inner peripheral surface of the seal member 30 and the outer peripheral surface of the intermediate portion 22, a primer layer (such as an adhesive layer) may be interposed in the close contact portion.

シール部材３０が取付けられた後、図２（ａ）に示すように、円筒状の防水カバー４０が、端子２０のアース固定部２１の先端部から挿入され、電線１０及び端子２０の周囲に配置される。その際、防水カバー４０は、防水カバー４０の一方の開口端４１がシール部材３０の凸条部３１より端子２０の先端側に位置し、且つ、防水カバー４０の他方の開口端４２が端子２０の後端より電線１０側に位置するように配置される。 After the seal member 30 is attached, a cylindrical waterproof cover 40 is inserted from the tip of the ground fixing portion 21 of the terminal 20 and disposed around the electric wire 10 and the terminal 20 as shown in FIG. Is done. At that time, in the waterproof cover 40, one open end 41 of the waterproof cover 40 is positioned closer to the distal end side of the terminal 20 than the convex portion 31 of the seal member 30, and the other open end 42 of the waterproof cover 40 is the terminal 20. It arrange | positions so that it may be located in the electric wire 10 side from the rear end.

防水カバー４０は、加熱処理によって収縮する合成樹脂材料などから形成されている。なお、防水カバー４０の密着性向上のため、防水カバー４０の内周面にホットメルト接着剤層（図示省略）が形成されていることが好ましい。 The waterproof cover 40 is made of a synthetic resin material that contracts by heat treatment. In order to improve the adhesion of the waterproof cover 40, a hot melt adhesive layer (not shown) is preferably formed on the inner peripheral surface of the waterproof cover 40.

防水カバー４０が配置されると、図２（ｂ）に示すように、防水カバー４０に加熱処理（例えば、約１５０℃での加熱処理）が施される。この加熱処理により、ホットメルト接着剤が溶融しながら防水カバー４０が収縮する。その結果、防水カバー４０の内周面が電線１０及び端子２０の外周に隙間なく密着すると共に、ホットメルト接着剤により接着固定され、端子付き電線１が完成する。 When the waterproof cover 40 is disposed, as shown in FIG. 2B, the waterproof cover 40 is subjected to heat treatment (for example, heat treatment at about 150 ° C.). By this heat treatment, the waterproof cover 40 contracts while the hot melt adhesive melts. As a result, the inner peripheral surface of the waterproof cover 40 is in close contact with the outer periphery of the electric wire 10 and the terminal 20 without gaps, and is bonded and fixed with a hot melt adhesive, thereby completing the electric wire 1 with terminal.

図３及び図４に示すように、完成した端子付き電線１では、防水カバー４０の開口端４１の近傍部分が、シール部材３０の凸条部３１と全周に亘って密着・固定され、且つ、防水カバー４０の開口端４２の近傍部分が、電線１０の絶縁被覆１２と全周に亘って密着・固定される。このとき、凸条部３１は、防水カバー４０に食い込んだ状態となっている。更に、上述したように、シール部材３０の内周面が中間部２２の外周面と全周に亘って密着している。その結果、防水カバー４０の開口端４１及び開口端４２の双方からの水分の侵入が確実に防止されて、端子２０と電線１０との接続部２３を確実に防水することができる。 As shown in FIG. 3 and FIG. 4, in the completed electric wire with terminal 1, the vicinity of the opening end 41 of the waterproof cover 40 is in close contact with and fixed to the convex portion 31 of the seal member 30, and The vicinity of the opening end 42 of the waterproof cover 40 is in close contact with and fixed to the insulating coating 12 of the electric wire 10 over the entire circumference. At this time, the ridge portion 31 is in a state of biting into the waterproof cover 40. Furthermore, as described above, the inner peripheral surface of the seal member 30 is in close contact with the outer peripheral surface of the intermediate portion 22 over the entire periphery. As a result, the intrusion of moisture from both the opening end 41 and the opening end 42 of the waterproof cover 40 is reliably prevented, and the connection portion 23 between the terminal 20 and the electric wire 10 can be reliably waterproofed.

以上に説明したように、本発明の実施形態に係る端子付き電線１によれば、シール部材３０が外周面に凸条部３１を有しており、この凸条部３１に防水カバー４０が密着するようになっている。別の言い方をすると、防水カバー４０とシール部材３０とが密着したとき、凸条部３１が防水カバー４０に食い込んだ状態となっている。そのため、防水カバー４０に外力が及んでも、従来電線（背景技術の欄を参照）に比べ、防水カバー４０がシール部材３０に対して相対移動し難いことになる。更に、仮に防水カバー４０とシール部材３０とが剥離しても、従来電線では、水分の侵入経路が平面状となるのに対し、端子付き電線１では、水分の侵入経路が凸条部３１の分だけ曲面状となる。よって、端子付き電線１では、従来電線と比べ、水分が接続部２３に向けて侵入し難いことになる。したがって、端子付き電線１は、端子２０と電線１０との接続部２３を出来る限り確実に防水することが可能である。 As described above, according to the terminal-attached electric wire 1 according to the embodiment of the present invention, the seal member 30 has the protruding strip portion 31 on the outer peripheral surface, and the waterproof cover 40 is in close contact with the protruding strip portion 31. It is supposed to be. In other words, when the waterproof cover 40 and the seal member 30 are in close contact with each other, the ridges 31 are in a state of biting into the waterproof cover 40. Therefore, even if an external force is applied to the waterproof cover 40, the waterproof cover 40 is less likely to move relative to the seal member 30 compared to the conventional electric wire (see the background art section). Furthermore, even if the waterproof cover 40 and the seal member 30 are peeled off, in the conventional electric wire, the moisture intrusion path is flat, whereas in the terminal-attached electric wire 1, the moisture intrusion path is the protrusion 31. It will be curved as much. Therefore, in the electric wire 1 with a terminal, compared with the conventional electric wire, it is difficult for moisture to enter the connecting portion 23. Therefore, the terminal-attached electric wire 1 can waterproof the connecting portion 23 between the terminal 20 and the electric wire 10 as reliably as possible.

更に、端子付き電線１では、端子２０の位置決め孔２２ａに対するシール部材３０の突起３２の挿入（係止）により、シール部材３０が端子２０に対して所定の位置に位置決めされることになる。そのため、シール部材３０の取り付け位置のばらつきを小さくでき、シール部材３０の位置ズレ等に起因して防水カバー４０とシール部材３０との密着性が低下することを防止できる。 Furthermore, in the electric wire with terminal 1, the seal member 30 is positioned at a predetermined position with respect to the terminal 20 by inserting (locking) the protrusion 32 of the seal member 30 into the positioning hole 22 a of the terminal 20. Therefore, the variation in the attachment position of the seal member 30 can be reduced, and the adhesion between the waterproof cover 40 and the seal member 30 can be prevented from being lowered due to the positional deviation of the seal member 30 or the like.

＜他の態様＞
なお、本発明は上記各実施形態に限定されることはなく、本発明の範囲内において種々の変形例を採用できる。例えば、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。 <Other aspects>
In addition, this invention is not limited to said each embodiment, A various modification is employable within the scope of the present invention. For example, the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like can be made as appropriate. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

例えば、上記実施形態では、図４に示すように、シール部材３０の外周面に環状の凸条部３１が軸線方向において１箇所だけ設けられている。しかし、図５に示すように、環状の凸条部３１が軸線方向において複数箇所（図５では、２箇所）に設けられてもよい。 For example, in the said embodiment, as shown in FIG. 4, the cyclic | annular convex part 31 is provided in the outer peripheral surface of the sealing member 30 only in one place in the axial direction. However, as shown in FIG. 5, the annular ridges 31 may be provided at a plurality of locations (two locations in FIG. 5) in the axial direction.

このように複数の凸条部３１を設けることにより、凸条部３１が１つである場合に比べ、防水カバー４０とシール部材３０との相対移動が更に困難となり、仮に防水カバー４０とシール部材３０とが剥離しても水分の侵入が更に困難となる。よって、端子２０と電線１０との接続部２３を更に確実に防水することが可能となる。 By providing the plurality of ridges 31 in this manner, the relative movement between the waterproof cover 40 and the seal member 30 becomes more difficult as compared with the case where the number of the ridges 31 is one. Even if 30 peels off, it becomes more difficult for moisture to enter. Therefore, the connection part 23 between the terminal 20 and the electric wire 10 can be further waterproofed.

更に、上記実施形態では、シール部材３０は、端子２０から独立した別部材として準備され、端子２０の中間部２２に挿入・固定されている。しかし、図６に示すように、シール部材３０は、端子２０の中間部２２に一体的に成形（モールド成形）されてもよい。この場合、シール部材３０には、中間部２２の位置決め孔２２ａを貫通すると共にシール部材３０の上方部分と下方部分とを連結する架橋部３３が形成される。このように、架橋部３３と位置決め孔２２ａとが係止することにより、シール部材３０が端子２０に対して所定の位置に位置決めされることになる。 Furthermore, in the above embodiment, the seal member 30 is prepared as a separate member independent of the terminal 20, and is inserted and fixed to the intermediate portion 22 of the terminal 20. However, as shown in FIG. 6, the seal member 30 may be integrally formed (molded) on the intermediate portion 22 of the terminal 20. In this case, the seal member 30 is formed with a bridging portion 33 that penetrates the positioning hole 22 a of the intermediate portion 22 and connects the upper portion and the lower portion of the seal member 30. Thus, the sealing member 30 is positioned at a predetermined position with respect to the terminal 20 by locking the bridging portion 33 and the positioning hole 22a.

このように、シール部材３０が、端子２０の中間部２２に一体的に成形される場合、シール部材３０の内周面と中間部２２の外周面との密着性向上のため、端子２０の表面にプライマー層（接着剤層など）を予め形成することが好ましい。 As described above, when the seal member 30 is integrally formed with the intermediate portion 22 of the terminal 20, the surface of the terminal 20 is improved in order to improve the adhesion between the inner peripheral surface of the seal member 30 and the outer peripheral surface of the intermediate portion 22. It is preferable to previously form a primer layer (such as an adhesive layer).

更に、上記実施形態では、本発明の「係止部」として端子２０の中間部２２の位置決め孔２２ａが採用され、本発明の「被係止部」としてシール部材３０の突起３２が採用されている。しかし、凹凸関係を逆にし、本発明の「係止部」として端子２０の中間部２２に形成された突起が採用され、本発明の「被係止部」としてシール部材３０の内周面に設けられた凹部が採用されていてもよい。 Furthermore, in the above embodiment, the positioning hole 22a of the intermediate portion 22 of the terminal 20 is employed as the “locking portion” of the present invention, and the protrusion 32 of the seal member 30 is employed as the “locked portion” of the present invention. Yes. However, the projections formed on the intermediate portion 22 of the terminal 20 are adopted as the “locking portion” of the present invention by reversing the concave-convex relationship, and the inner surface of the seal member 30 is used as the “locked portion” of the present invention. The provided recessed part may be employ | adopted.

更に、上記実施形態では、シール部材３０の外周面が矩形状となっている。しかし、シール部材３０の外周面の形状は、端子２０を軸線周りに周回する環形状を有していればよく、特に制限されない。例えば、シール部材３０の外周面の形状として、円形、楕円形などが採用され得る。加えて、上記実施形態では、端子２０が接地部に接地するためのアース端子となっているが、端子はアース端子でなくてもよい。 Furthermore, in the said embodiment, the outer peripheral surface of the sealing member 30 is a rectangular shape. However, the shape of the outer peripheral surface of the seal member 30 is not particularly limited as long as it has a ring shape that circulates around the terminal 20 around the axis. For example, as the shape of the outer peripheral surface of the seal member 30, a circular shape, an elliptical shape, or the like can be adopted. In addition, in the said embodiment, although the terminal 20 is an earth terminal for earth | grounding to a ground part, a terminal does not need to be an earth terminal.

ここで、上述した本発明に係る端子付き電線、及び、端子付き電線の製造方法の実施形態の特徴をそれぞれ以下（１）〜（４）に簡潔に纏めて列記する。
（１）
電線（１０）と、前記電線の端末部に電気的に接続された端子（２０）と、前記電線と前記端子との接続部を覆う筒状の防水カバー（４０）と、前記接続部よりも前記端子の先端側に取り付けられ且つ前記端子と前記防水カバーとの間の空間を埋めるシール部材（３０）と、を備えた、端子付き電線（１）であって、
前記シール部材（３０）は、
前記端子（２０）を軸線周りに周回する環形状を有し、該シール部材の内周面が前記端子に密着すると共に、該シール部材の外周面から径方向外向きに突出し且つ前記外周面を周回するように延びる凸条部（３１）を有し、
前記防水カバー（４０）は、
一方の開口端が前記凸条部（３１）よりも前記端子の先端側にあり且つ前記凸条部（３１）と該防水カバー（４０）とが密着し、他方の開口端が前記端子よりも前記電線側にあり且つ前記電線と該防水カバーとが密着する、
端子付き電線。
（２）
上記（１）に記載の端子付き電線において、
前記シール部材（３０）が、複数の前記凸条部（３１）を前記外周面に有する、
端子付き電線。
（３）
上記（１）又は上記（２）に記載の端子付き電線において、
前記端子（２０）が、前記接続部よりも該端子の先端側に係止部（２２ａ）を有し、
前記シール部材（３０）が、前記係止部に対応する被係止部（３２）を有すると共に、前記係止部に前記被係止部が係止されることによって前記端子に取り付けられている、
端子付き電線。
（４）
電線（１０）と、前記電線の端末部に電気的に接続された端子（２０）と、前記電線と前記端子との接続部を覆う筒状の防水カバー（４０）と、前記接続部よりも前記端子の先端側に取り付けられ且つ前記端子と前記防水カバーとの間の空間を埋めるシール部材（３０）と、を備えた端子付き電線の製造方法であって、
前記シール部材（３０）は、
前記端子（２０）を軸線周りに周回する環形状を有し、該シール部材の内周面が前記端子に密着すると共に、該シール部材の外周面から径方向外向きに突出し且つ前記外周面を周回するように延びる凸条部（３１）を有し、
該製造方法は、
前記電線（１０）の端末部に前記端子（２０）を電気的に接続する工程と、
前記接続部よりも前記端子の先端側において、前記端子に前記シール部材（３０）を取り付ける工程と、
前記防水カバー（４０）の一方の開口端が前記凸条部（３１）よりも前記端子の先端側にあり且つ他方の開口端が前記端子よりも前記電線（１０）側にあるように、前記防水カバー（４０）を配置する工程と、
配置された前記防水カバー（４０）を前記端子（２０）に向けて収縮させることにより、前記凸条部（３１）と前記防水カバーとを密着させ且つ前記電線（１０）と前記防水カバーとを密着させる工程と、を含む、
端子付き電線の製造方法。 Here, the features of the embodiment of the electric wire with terminal and the method of manufacturing the electric wire with terminal according to the present invention described above are briefly summarized and listed in the following (1) to (4), respectively.
(1)
Than the electric wire (10), the terminal (20) electrically connected to the terminal portion of the electric wire, the cylindrical waterproof cover (40) covering the connecting portion between the electric wire and the terminal, and the connecting portion A terminal-attached electric wire (1), comprising: a seal member (30) attached to a distal end side of the terminal and filling a space between the terminal and the waterproof cover;
The sealing member (30)
The terminal (20) has an annular shape that circulates around an axis, the inner peripheral surface of the seal member is in close contact with the terminal, protrudes radially outward from the outer peripheral surface of the seal member, and the outer peripheral surface is Having a ridge (31) extending so as to go around,
The waterproof cover (40)
One open end is closer to the tip of the terminal than the ridge (31), the ridge (31) and the waterproof cover (40) are in close contact, and the other open end is closer to the terminal. The electric wire and the waterproof cover are in close contact with the electric wire side,
Electric wire with terminal.
(2)
In the electric wire with a terminal according to the above (1),
The seal member (30) has a plurality of the ridges (31) on the outer peripheral surface,
Electric wire with terminal.
(3)
In the electric wire with a terminal according to the above (1) or (2),
The terminal (20) has a locking part (22a) on the tip side of the terminal from the connection part,
The seal member (30) has a locked portion (32) corresponding to the locking portion, and is attached to the terminal by locking the locked portion to the locking portion. ,
Electric wire with terminal.
(4)
Than the electric wire (10), the terminal (20) electrically connected to the terminal portion of the electric wire, the cylindrical waterproof cover (40) covering the connecting portion between the electric wire and the terminal, and the connecting portion A sealing member (30) attached to the distal end side of the terminal and filling a space between the terminal and the waterproof cover,
The sealing member (30)
The terminal (20) has an annular shape that circulates around an axis, the inner peripheral surface of the seal member is in close contact with the terminal, protrudes radially outward from the outer peripheral surface of the seal member, and the outer peripheral surface is Having a ridge (31) extending so as to go around,
The manufacturing method is as follows:
Electrically connecting the terminal (20) to a terminal portion of the electric wire (10);
Attaching the seal member (30) to the terminal on the tip side of the terminal relative to the connecting portion;
The open end of the waterproof cover (40) is closer to the distal end side of the terminal than the ridge (31) and the other open end is closer to the electric wire (10) than the terminal. Arranging the waterproof cover (40);
By contracting the arranged waterproof cover (40) toward the terminal (20), the protrusion (31) and the waterproof cover are brought into close contact with each other, and the electric wire (10) and the waterproof cover are brought together. Including the step of adhering,
Manufacturing method of electric wire with terminal.

１端子付き電線
１０電線
１１導体芯線（電線）
１２絶縁被覆（電線）
２０端子
２２ａ位置決め孔（係止部）
２３接続部
３０シール部材
３１凸条部
３２突起（被係止部）
３３架橋部（被係止部）
４０防水カバー
４１一方の開口端
４２他方の開口端 1 Electric wire with terminal 10 Electric wire 11 Conductor core wire (electric wire)
12 Insulation coating (electric wire)
20 Terminal 22a Positioning hole (locking part)
23 connection part 30 seal member 31 ridge part 32 protrusion (locked part)
33 Bridge part (locked part)
40 Waterproof cover 41 One open end 42 The other open end

Claims

An electric wire, a terminal electrically connected to a terminal portion of the electric wire, a cylindrical waterproof cover that covers a connection portion between the electric wire and the terminal, and attached to the distal end side of the terminal from the connection portion; A seal member that fills a space between the terminal and the waterproof cover, and an electric wire with a terminal,
The sealing member is
The terminal has an annular shape that circulates around the axis, the inner peripheral surface of the seal member is in close contact with the terminal, protrudes radially outward from the outer peripheral surface of the seal member, and circulates around the outer peripheral surface Has a ridge extending to
The waterproof cover is
One open end is closer to the tip side of the terminal than the ridge, the ridge and the waterproof cover are in close contact, and the other open end is closer to the wire than the terminal, and the wire The waterproof cover is in close contact,
Electric wire with terminal.

In the electric wire with a terminal according to claim 1,
The seal member has a plurality of the ridges on the outer peripheral surface,
Electric wire with terminal.

In the electric wire with a terminal according to claim 1 or claim 2,
The terminal has a locking part on the tip side of the terminal rather than the connection part,
The seal member has a locked portion corresponding to the locking portion, and is attached to the terminal by locking the locked portion to the locking portion.
Electric wire with terminal.

An electric wire, a terminal electrically connected to a terminal portion of the electric wire, a cylindrical waterproof cover that covers a connection portion between the electric wire and the terminal, and attached to the distal end side of the terminal from the connection portion; A sealing member that fills a space between the terminal and the waterproof cover, and a method of manufacturing a terminal-attached electric wire,
The sealing member is
The terminal has an annular shape that circulates around the axis, the inner peripheral surface of the seal member is in close contact with the terminal, protrudes radially outward from the outer peripheral surface of the seal member, and circulates around the outer peripheral surface Has a ridge extending to
The manufacturing method is as follows:
Electrically connecting the terminal to a terminal portion of the electric wire;
At the tip end side of the terminal with respect to the connecting portion, attaching the seal member to the terminal;
Placing the waterproof cover such that one open end of the waterproof cover is closer to the tip of the terminal than the ridge and the other open end is closer to the electric wire than the terminal;
Including shrinking the arranged waterproof cover toward the terminal, thereby bringing the protruding portion and the waterproof cover into close contact with each other, and bringing the electric wire and the waterproof cover into close contact with each other.
Manufacturing method of electric wire with terminal.