JP6544499B2 - Electric wire with terminal and manufacturing method thereof - Google Patents

Electric wire with terminal and manufacturing method thereof Download PDF

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JP6544499B2
JP6544499B2 JP2019005044A JP2019005044A JP6544499B2 JP 6544499 B2 JP6544499 B2 JP 6544499B2 JP 2019005044 A JP2019005044 A JP 2019005044A JP 2019005044 A JP2019005044 A JP 2019005044A JP 6544499 B2 JP6544499 B2 JP 6544499B2
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terminal
core wire
wire
core
electric wire
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JP2019057517A (en
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貴章 伊藤
貴章 伊藤
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Description

本発明は、端子付電線に関する。   The present invention relates to a terminal-attached wire.

特許文献1には、露出芯線部を有する電線と、当該露出芯線部に接続された端子と、当該端子の相手側接続部よりも手前で露出芯線部と端子との接続部分を覆うように配設され、熱収縮によって当該接続部分に装着されている熱収縮チューブと、を備える端子付電線が示されている。芯線は、アルミニウム合金であり、端子は、銅合金の表面にスズメッキ層が形成されたものである。露出芯線部と端子との接続部分が熱収縮チューブによって覆われていることによって、露出芯線部の防食が図られている。   In Patent Document 1, an electric wire having an exposed core portion, a terminal connected to the exposed core portion, and a connection portion between the exposed core portion and the terminal are arranged in front of the other connection portion of the terminal. And a heat-shrinkable tube provided and installed at the connection portion by heat-shrinkage. The core wire is an aluminum alloy, and the terminal is a copper alloy on the surface of which a tin plating layer is formed. By covering the connection portion between the exposed core portion and the terminal with the heat-shrinkable tube, corrosion protection of the exposed core portion is achieved.

特開2012−74177号公報JP 2012-74177 A

しかしながら、特許文献1の端子付電線には、熱収縮チューブが露出芯線部と端子との接続部分の全周を覆うことによって端子付電線の太さが増大するため、コネクタハウジングとの間のクリアランスが不足するといった問題がある。   However, in the terminal-attached electric wire of Patent Document 1, the thickness of the terminal-attached electric wire is increased by covering the entire circumference of the connection portion of the exposed core wire portion and the terminal with the heat-shrinkable tube, so the clearance with the connector housing Problems such as lack of

本発明は、こうした問題を解決するためになされたもので、端子付電線の芯線の露出部を防食しつつ、端子付電線の太さの増大を抑制できる技術を提供することを目的とする。   The present invention has been made to solve these problems, and it is an object of the present invention to provide a technology capable of suppressing an increase in the thickness of a terminal-attached wire while preventing corrosion of the exposed portion of the core wire of the terminal-attached wire.

上記の課題を解決するために、第1の態様に係る端子付電線は、芯線と、前記芯線の端部を避けて前記芯線の外周を覆う絶縁被覆とを含む電線と、底部と、前記底部の一部から突出する芯線圧着片とを含み、前記芯線圧着片が前記芯線の前記端部に圧着されている端子と、フィルムが溶けないで前記端子の前記底部の外側面を避けて前記芯線の前記端部のうち露出部と前記芯線圧着片の立設方向先端とを覆った状態となっている接着膜と、を備える。 In order to solve the above-mentioned subject, the electric wire with a terminal concerning the 1st mode is an electric wire containing a core, an insulation coating which covers the perimeter of the core, avoiding the end of the core, a bottom, and the bottom A core wire crimping piece protruding from a portion of the core wire, the core wire crimp piece being crimped to the end portion of the core wire, and the core wire avoiding the outer surface of the bottom portion of the terminal without melting the film And an adhesive film covering the exposed portion of the end portion and the tip end in the erecting direction of the core wire crimping piece .

第2の態様に係る端子付電線は、第1の態様に係る端子付電線であって、前記接着膜は、前記芯線の前記露出部のうち前記底部から離れる方向を向いている上面露に沿った形状となるように前記上面露出部に接着されている。
第3の態様は、芯線と、前記芯線の端部を避けて前記芯線の外周を覆う絶縁被覆とを含む電線と、底部と、前記底部の一部から突出する芯線圧着片とを含み、前記芯線圧着片が前記芯線の前記端部に圧着されている端子と、前記端子の前記底部の外側面を避けて前記芯線の前記端部のうち露出部を覆っている接着膜と、を備え、前記接着膜は、樹脂層を介して前記露出部に接着されている。
第4の態様は、第3の態様に係る端子付電線であって、前記接着膜は、フィルムである。
The terminal-attached electric wire according to the second aspect is the terminal-attached electric wire according to the first aspect, wherein the adhesive film is provided along an upper surface dew directed in a direction away from the bottom portion of the exposed portion of the core wire. It adheres to the said upper surface exposure part so that it may become a shape.
A third aspect includes a wire including a core wire, an insulating coating that covers the outer periphery of the core wire avoiding an end of the core wire, a bottom portion, and a core wire crimping piece protruding from a portion of the bottom portion, A terminal on which a core crimping piece is crimped to the end of the core, and an adhesive film covering an exposed portion of the end of the core, avoiding an outer surface of the bottom of the terminal; The adhesive film is adhered to the exposed portion via a resin layer.
A 4th aspect is an electric wire with a terminal concerning the 3rd aspect, Comprising: The said adhesive film is a film.

第5の態様に係る端子付電線は、第1から第4のいずれか1つの態様に係る端子付電線であって、前記芯線の先端部分は、前記端子の前記芯線圧着片から前記絶縁被覆とは反対側にはみ出しており、前記接着膜の一部は、前記芯線の前記先端部分から前記絶縁被覆とは反対側にはみ出している。 The terminal-attached electric wire according to the fifth aspect is the terminal-attached electric wire according to any one of the first to fourth aspects , wherein the tip portion of the core wire is the insulation coating from the core wire crimping piece of the terminal are protruded to the opposite side, a portion of the adhesive layer is in protruding on the opposite side to the insulating cover from the tip portion of the core wire.

第6の態様に係る端子付電線は、第5の態様に係る端子付電線であって、前記接着膜の前記一部は、前記芯線の前記先端面側に曲がっている。 Terminal-equipped wire according to a sixth aspect is the terminal-equipped wire according to a fifth aspect, the portion of prior SL adhesive film is bent on the distal end side of the core wire.

第7の態様に係る端子付電線の製造方法は、端子の底部の一部から突出する芯線圧着片が電線の芯線のうち絶縁被覆から露出している端部に対して圧着され、前記芯線の前記端部のうち露出部に防食処理がされている端子付電線の製造方法であって、前記端子の前記底部の外側面を避けて前記芯線の前記露出部のうち前記底部から離れる方向を向いている上面露出部を覆うように前記上面露出部への接着をなされ得る大きさの接着膜を載せる接着膜載置工程と、前記接着膜の周りの雰囲気を吸引して前記接着膜を前記芯線の前記上面露出部に押しつける工程と、を備える。 In the method of manufacturing a terminal-attached electric wire according to the seventh aspect, the core crimping piece projecting from a part of the bottom of the terminal is crimped to the end of the core of the electric wire exposed from the insulating coating, a method of manufacturing a wire with terminals being anticorrosion treatment is the exposed part of said end portion, a direction away from said bottom portion of said exposed portion of the core wire to avoid the outer surface of the bottom portion of the front SL terminal an adhesive film placing step for placing an adhesive film of a that can be made the size adhesion to the upper surface exposed portion so as to cover the upper surface exposed portion facing, the adhesive film by sucking the atmosphere around the adhesive film And pressing the upper surface exposed portion of the core wire .

第8の態様に係る端子付電線の製造方法は、第7の態様に係る端子付電線の製造方法であって、前記芯線の先端部分は、前記端子の前記芯線圧着片から前記絶縁被覆とは反対側にはみ出しており、前記接着膜載置工程は、前記接着膜の一部が前記芯線の先端部分から前記絶縁被覆とは反対側にはみ出すように、前記接着膜を載せる工程である。 A method of manufacturing a terminal-attached electric wire according to an eighth aspect is the method of manufacturing the terminal-attached electric wire according to the seventh aspect, wherein a tip end portion of the core wire is the core wire crimping piece of the terminal and the insulation coating and protrudes to the opposite side, the adhesive layer placing step, the said insulating coating part from the tip portion of the core wire before SL adhesive film so as to protrude on the opposite side, a step of placing the adhesive film.

第9の態様に係る端子付電線の製造方法は、第7または第8の態様に係る端子付電線の製造方法であって、前記接着膜を前記上面露出部に接着する工程をさらに備える。 A method of manufacturing a terminal-attached electric wire according to a ninth aspect is the method of manufacturing the terminal-attached electric wire according to the seventh or eighth aspect, further including the step of adhering the adhesive film to the upper surface exposed portion.

第1から第6の態様に係る発明によれば、端子付電線は、端子の底部の外側面を避けて電線の芯線の露出部を覆っている接着膜を備える。これにより、芯線の露出部を防食しつつ、端子付電線の太さの増大を抑制できる。 According to the invention according to the first to sixth aspect, terminal-equipped wire, Ru provided with a contact-deposit covering the exposed portion of the core wire of the electric wire to avoid the outer surface of the bottom portion of the terminal. This ensures that while corrosion of the exposed portion of the core wire, the increase in the thickness of the terminal-equipped wire can be suppressed.

第2の態様に係る発明によれば、接着膜が芯線の上面露出部に沿った形状となるように上面露出部に接着される。 According to the invention of the second aspect, contact-deposit is bonded to the upper surface exposed portion so that the shape along the upper surface exposed portion of the core wire.

第7の態様に係る発明によれば、端子の底部の外側面を避けて芯線の露出部のうち当該底部から離れる方向を向いている上面露出部を覆うように上面露出部への接着をなされ得る大きさの接着膜が載せられる。これにより、製造される端子付電線の芯線の露出部を防食しつつ、端子付電線の太さの増大を抑制できる。 According to the invention of the seventh aspect, the adhesion to the upper surface exposed portion so as to cover the upper surface exposed portion to avoid the outer surface of the bottom portion of the pin facing away from the bottom of the exposed portion of the core wire adhesive film that can be made magnitude Ru mounting Serare. This ensures that while corrosion of the exposed portion of the core wire of the terminal-equipped wire which is produced, an increase in the thickness of the terminal-equipped wire can be suppressed.

実施形態に係る端子付電線を示す概略側面図である。It is a schematic side view showing the electric wire with a terminal concerning an embodiment. 図1の端子付電線を示す概略平面図である。It is a schematic plan view which shows the electric wire with a terminal of FIG. 図1の端子付電線のA1−A1切断面における断面図である。It is sectional drawing in the A1-A1 cut surface of the electric wire with a terminal of FIG. 図1の端子付電線の端子を示す概略斜視図である。It is a schematic perspective view which shows the terminal of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示すフローチャートである。It is a flowchart which shows the manufacturing process of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the electric wire with a terminal of FIG. 図1の端子付電線の製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the electric wire with a terminal of FIG.

以下、実施形態に係る端子付電線及びその製造方法について説明する。   Hereinafter, the electric wire with a terminal concerning the embodiment and its manufacturing method are explained.

<端子付電線>
まず製造対象となる実施形態に係る端子付電線について図1乃至図4を参照しつつ説明する。図1は、実施形態に係る端子付電線10を示す概略側面図である。図2は、端子付電線10を示す概略平面図である。図3は、端子付電線10のA1−A1切断面における断面図である。図4は、端子20を示す概略斜視図である。
<Wire with terminal>
First, a terminal-attached electric wire according to an embodiment to be manufactured will be described with reference to FIGS. 1 to 4. Drawing 1 is an outline side view showing electric wire 10 with a terminal concerning an embodiment. FIG. 2 is a schematic plan view showing the terminal-attached electric wire 10. FIG. 3: is sectional drawing in the A1-A1 cut surface of the electric wire 10 with a terminal. FIG. 4 is a schematic perspective view showing the terminal 20. As shown in FIG.

この端子付電線10は、電線12と、端子20と、接着剤18、フィルム19とを備える。   The terminal-attached electric wire 10 includes an electric wire 12, a terminal 20, an adhesive 18, and a film 19.

電線12は、芯線13と、芯線13の端部13aを避けて芯線13の外周を覆う被覆(「絶縁被覆」)14とを備える。芯線13は、線状の導体であり、ここでは、複数の素線が撚り合わされることによって芯線13が形成されている。被覆14は、樹脂等の絶縁材料によって形成されている。被覆14は、例えば、芯線13の周りに軟化した樹脂を押出被覆等することによって形成される。   The electric wire 12 is provided with a core 13 and a coating (“insulation coating”) 14 that covers the outer periphery of the core 13 while avoiding the end 13 a of the core 13. The core wire 13 is a linear conductor, and here, the core wire 13 is formed by twisting a plurality of strands. The coating 14 is formed of an insulating material such as a resin. The coating 14 is formed, for example, by extrusion coating a softened resin around the core wire 13.

また、電線12の端部では、所定長の被覆14が芯線13から皮剥されている。これにより、電線12の端部に、芯線13が所定長に亘って露出する端部13aが設けられる。   Further, at the end of the wire 12, the sheath 14 having a predetermined length is peeled off from the core wire 13. Thereby, the end 13a where the core wire 13 is exposed over a predetermined length is provided at the end of the electric wire 12.

端子(「金属端子」)20は、導電性板材である金属板材をプレス加工等することにより形成された部材であり、相手側の電気的接続要素としての相手側導体Cと直接接触する相手側接続部28とその相手側接続部28と繋がる電線接続部22とを備える。   The terminal ("metal terminal") 20 is a member formed by pressing a metal plate material, which is a conductive plate material, and is in contact with the other-side conductor C as the other-side electrical connection element. A connection portion 28 and a wire connection portion 22 connected to the other connection portion 28 are provided.

電線接続部22は、先端側連結部23、芯線圧着部24、中間連結部25及び被覆圧着部26を備える。これらの先端側連結部23、芯線圧着部24、中間連結部25及び被覆圧着部26は、直線方向に沿って一列に並んで形成されている。なお、本実施形態では、本端子20において、相手側接続部28側を端子20の先端側、電線接続部22側を端子20の基端側として説明する。   The wire connection portion 22 includes a distal end side connection portion 23, a core wire crimping portion 24, an intermediate connection portion 25, and a coated crimping portion 26. The distal end side connection portion 23, the core wire crimping portion 24, the intermediate connection portion 25, and the sheath crimping portion 26 are formed in a line along the linear direction. In the present embodiment, in the main terminal 20, the mating connection portion 28 side will be described as the tip end side of the terminal 20, and the wire connection portion 22 side as the base end side of the terminal 20.

被覆圧着部26は、加締められることにより、電線12の被覆14の端部に圧着される部分である。被覆圧着部26は、底板部26aと、その底板部26aの両側に立設されて対向する一対の被覆圧着片26bとを備えている。図3に示す例では、一対の被覆圧着片26bは、底板部26aに垂直に立設されているが、必ずしもその必要はない。例えば、一対の被覆圧着片26bのうち本端子20の先端側の縁部は、各被覆圧着片26bの立設方向先端側に向けて端子20の基端側に傾斜する形状に形成されていることも考えられる。   The coated crimping portion 26 is a portion that is crimped to the end of the sheath 14 of the electric wire 12 by being crimped. The coated crimping portion 26 includes a bottom plate portion 26 a and a pair of coated crimping pieces 26 b erected on both sides of the bottom plate portion 26 a and opposed to each other. In the example shown in FIG. 3, the pair of coated crimping pieces 26 b are erected vertically to the bottom plate portion 26 a, but this is not necessarily required. For example, the edge on the tip end side of the main terminal 20 of the pair of coated crimping pieces 26b is formed to be inclined toward the proximal end side of the terminal 20 toward the tip end side of the coated crimping pieces 26b. It is also conceivable.

中間連結部25は、被覆圧着部26と芯線圧着部24とを繋ぐ部分である。中間連結部25は、底板部25aと、その底板部25aの両側に立設されて対向する一対の側壁部25bとを備える。   The intermediate connection portion 25 is a portion that connects the coated crimping portion 26 and the core wire crimping portion 24. The intermediate connection portion 25 includes a bottom plate portion 25 a and a pair of side wall portions 25 b erected on both sides of the bottom plate portion 25 a and opposed to each other.

芯線圧着部24は、加締められることにより、芯線13の端部13aに圧着される部分である。芯線圧着部24は、底板部24aと、その底板部24aの両側に立設されて対向する一対の芯線圧着片24bとを備える。   The core wire crimping portion 24 is a portion crimped to the end 13 a of the core wire 13 by being crimped. The core wire crimping portion 24 includes a bottom plate portion 24 a and a pair of core wire crimping pieces 24 b erected on both sides of the bottom plate portion 24 a and opposed to each other.

なお、本実施形態では、一対の芯線圧着片24bが対向する方向が端子20の幅方向であるとして説明する。また、底板部24aに対して一対の芯線圧着片24bが立設された方向が端子20の高さ方向であるとして説明する。また、端子20の幅方向および高さ方向の双方に直交する方向(先端側連結部23、芯線圧着部24、中間連結部25及び被覆圧着部26が一列に並ぶ方向)が端子20の長さ方向であるとして説明する。   In the present embodiment, it is assumed that the direction in which the pair of core wire crimping pieces 24b oppose each other is the width direction of the terminal 20. Further, the direction in which the pair of core wire crimping pieces 24b are erected with respect to the bottom plate portion 24a will be described as the height direction of the terminal 20. In addition, the direction orthogonal to both the width direction and the height direction of the terminal 20 (the direction in which the distal end side connection portion 23, the core wire crimping portion 24, the intermediate connection portion 25, and the coated crimping portion 26 are aligned) is the length of the terminal 20 It is described as being in the direction.

先端側連結部23は、芯線圧着部24と相手側接続部28とを繋ぐ部分である。先端側連結部23は、底板部23aと、その底板部23aの両側に立設されて対向する一対の側壁部23bとを備える。   The distal end side connecting portion 23 is a portion connecting the core wire crimping portion 24 and the mating side connecting portion 28. The distal end side connection portion 23 includes a bottom plate portion 23 a and a pair of side wall portions 23 b erected on both sides of the bottom plate portion 23 a and opposed to each other.

電線接続部22における各底板部23a、24a、25a、26aは、全体として板状に連なる形状に形成されており、全体として電線接続部22の底部22a、すなわち端子20の底部20aの一部を成している。内側面20bは、底部20aの一方の主面である。内側面20bのうち電線接続部22の底部22aに対応する部分には、端子20に圧着される電線12が載せられる。外側面20cは、底部20aの他方の主面である。また、電線接続部22における幅方向の一方の側の側壁部23b、芯線圧着片24b、側壁部25b、被覆圧着片26bは、全体として板状に連なる形状に形成されている。同様に、電線接続部22における幅方向の他方の側の側壁部23b、芯線圧着片24b、側壁部25b、被覆圧着片26bも、全体として板状に連なる形状に形成されている。   Each of the bottom plate portions 23a, 24a, 25a, 26a in the wire connection portion 22 is formed in a plate-like shape as a whole, and the bottom 22a of the wire connection 22 as a whole, that is, a part of the bottom 20a of the terminal 20 It is The inner side surface 20b is one main surface of the bottom portion 20a. The wire 12 to be crimped to the terminal 20 is placed on a portion of the inner side surface 20 b corresponding to the bottom 22 a of the wire connection portion 22. The outer side surface 20c is the other main surface of the bottom portion 20a. Further, the side wall portion 23b, the core wire crimping piece 24b, the side wall portion 25b, and the coated crimping piece 26b on one side in the width direction of the wire connection portion 22 are formed in a plate shape as a whole. Similarly, the side wall portion 23b on the other side in the width direction of the wire connection portion 22, the core wire crimping piece 24b, the side wall portion 25b, and the coated crimping piece 26b are also formed into a plate shape as a whole.

また、電線12に対して加締められる(曲げられる)部分である被覆圧着部26の被覆圧着片26b及び芯線圧着部24の芯線圧着片24bは、中間連結部25及び先端側連結部23の各々の側壁部25b、23bよりも高さ方向において長く形成されている。被覆圧着片26b、芯線圧着片24bが加締められる前の状態において、電線接続部22における幅方向の一方の側の側壁部23b、芯線圧着片24b、側壁部25b、被覆圧着片26bの立設方向先端と、当該幅方向の他方の側の側壁部23b、芯線圧着片24b、側壁部25b、被覆圧着片26bの立設方向先端とは、電線接続部22の底部22aと略同じサイズの開口22dを形成している。   In addition, the coated crimped portion 26b of the coated crimped portion 26 and the core crimped portion 24b of the core crimped portion 24, which are portions crimped (bent) with respect to the electric wire 12, each of the intermediate connecting portion 25 and the tip side connecting portion 23 The side wall portions 25b and 23b are formed longer in the height direction than the side wall portions 25b and 23b. In a state before the coated crimping pieces 26b and the core crimping pieces 24b are crimped, the side wall portion 23b on one side in the width direction of the wire connection portion 22 is erected with the core crimping pieces 24b, the sidewall 25b, and the coated crimping pieces 26b. An opening of the same size as the bottom 22a of the wire connection 22 with the direction end and the side wall 23b, the core wire crimping piece 24b, the side wall 25b, and the end of the covering crimping piece 26b on the other side in the width direction. 22d is formed.

また、被覆圧着片26b、芯線圧着片24bは、底板部26a、24aから端子20の高さ方向に沿って同じ側に突出している。底板部26a、24aは、それぞれ、電線接続部22の底部22aの一部、すなわち端子20の底部20aの一部である。芯線圧着片24bは、芯線13のうち被覆14から露出している端部13aに対して圧着されている。   The coated crimping pieces 26b and the core crimping pieces 24b protrude from the bottom plate portions 26a and 24a along the height direction of the terminal 20 to the same side. The bottom plate portions 26 a and 24 a are each a part of the bottom 22 a of the wire connection 22, that is, a part of the bottom 20 a of the terminal 20. The core crimping portion 24 b is crimped to the end 13 a of the core 13 exposed from the coating 14.

また、相手側接続部28は、相手側の電気的接続要素としての相手側導体Cと直接接触し、相手側導体Cに接続される部分(端子接続部)である。ここでは、相手側接続部28は、相手側端子C1が嵌め入れられる孔である端子挿入孔28hが形成された筒状の部分である。本実施形態では、相手側接続部28は、角筒状に形成されており、内部に相手側端子C1と接触して弾性変形する接触片29が設けられている。   The other party connection portion 28 is a portion (terminal connection portion) which is in direct contact with the other party conductor C as the other party electrical connection element and is connected to the other party conductor C. Here, the mating connection portion 28 is a cylindrical portion in which a terminal insertion hole 28 h is formed, which is a hole into which the mating terminal C 1 is fitted. In the present embodiment, the mating connection portion 28 is formed in a rectangular tube shape, and is provided therein with a contact piece 29 that elastically deforms in contact with the mating terminal C1.

ここでは、相手側接続部28が筒形状の端子形状(いわゆるメス端子形状)に形成された例で説明するが、相手側接続部28は、細長棒状又は細長板状の端子形状(いわゆるオス端子形状)を含む形状に形成されていてもよい。また、相手側接続部28は、ボルト締め可能な形状、つまり平板状の本体部に貫通孔が形成された形状に形成されていてもよい。   Here, although the example in which the other party connection part 28 is formed in the cylindrical terminal shape (what is called female terminal shape) is demonstrated, the other party connection part 28 is an elongated rod-shaped or elongated plate-like terminal shape (so-called male terminal) It may be formed in the shape containing shape. In addition, the mating connection portion 28 may be formed in a boltable shape, that is, a shape in which a through hole is formed in a flat plate-like main body portion.

端子20は次のようにして電線12の端部に接続されている。すなわち、被覆14の端部が被覆圧着部26における一対の被覆圧着片26bの間に位置し、芯線13の端部13aが芯線圧着部24における一対の芯線圧着片24bの間に位置するように端子20に対して電線12が配置される。この状態で、被覆圧着部26の被覆圧着片26bは、底板部26a上の被覆14側(内側)へ曲げられる(加締められる)。   The terminal 20 is connected to the end of the wire 12 as follows. That is, the end of the coating 14 is located between the pair of coated crimping pieces 26 b in the coated crimping part 26, and the end 13 a of the core 13 is located between the pair of core crimping pieces 24 b in the core crimping part 24. Electric wires 12 are arranged relative to the terminals 20. In this state, the coated crimping piece 26b of the coated crimping portion 26 is bent (clamped) toward the coating 14 side (inner side) on the bottom plate portion 26a.

さらに、芯線圧着部24の芯線圧着片24bは、底板部24a上の端部13a側(内側)へ曲げられる(加締められる)。これにより、被覆圧着部26において、底板部26aと2つの被覆圧着片26bとが被覆14の端部に圧着された状態でこれを保持し、芯線圧着部24において、底板部24aと2つの芯線圧着片24bとが端部13aに圧着された状態でこれを保持する。この際、被覆14の先端側縁部は、中間連結部25の位置に位置し、一部が側壁部25bの間から露出している。同様に、芯線13の端部13aの先端側縁部は、先端側連結部23の位置に位置し、一部が側壁部23bの間から露出している。   Furthermore, the core wire crimping piece 24b of the core wire crimping part 24 is bent (swaged) to the end 13a side (inner side) on the bottom plate part 24a. Thereby, in the coated crimping portion 26, the bottom plate portion 26a and the two coated crimped pieces 26b are held in a state of being crimped to the end portion of the coating 14, and in the core wire crimping portion 24, the bottom plate portion 24a and the two core wires The crimping piece 24b is held in a state of being crimped to the end 13a. At this time, the tip end side edge of the coating 14 is located at the position of the intermediate connection portion 25 and a part is exposed from between the side wall portions 25 b. Similarly, the tip end side edge portion of the end portion 13a of the core wire 13 is located at the position of the tip end side connecting portion 23, and a portion is exposed from between the side wall portions 23b.

ここで、電線12の芯線13(素線)と、端子20とは、互いに標準電極電位(平衡電極電位)が異なる異種の金属によって構成されている。例えば、芯線13は、アルミニウム又はアルミニウムを主成分とするアルミニウム合金によって構成されている。一方、端子20は、銅若しくは銅を主成分とする銅合金(黄銅等)によって構成された部材、あるいはそれらの部材に錫(Sn)メッキ若しくは錫に銀(Ag)、銅(Cu)、ビスマス(Bi)などが添加された錫合金のメッキが施された部材である。従って、芯線13と端子20との接続部分では、異種金属が接触した状態となっており、この部分に塩水等の電解液が付着すると、異種金属接触腐食が発生し得る。   Here, the core wire 13 (strand) of the electric wire 12 and the terminal 20 are made of different metals having different standard electrode potentials (equilibrium electrode potentials). For example, the core wire 13 is made of aluminum or an aluminum alloy containing aluminum as a main component. On the other hand, the terminal 20 is a member made of copper or copper alloy (such as brass) containing copper as a main component, or tin (Sn) plating on these members or silver (Ag), copper (Cu), bismuth on tin (Bi) is a member to which a plating of a tin alloy to which an additive is added is applied. Therefore, different metals are in contact with each other at the connection portion between the core wire 13 and the terminal 20, and when an electrolytic solution such as salt water adheres to this portion, different metal contact corrosion may occur.

また、端子20と電線12との接続部分では、芯線13の端部13aは次の各部で外部に露出している。すなわち、芯線圧着部24と被覆圧着部26との間で、端部13aの基端部が露出している。また、芯線圧着部24と相手側接続部28との間で、端部13aの先端部が露出している。さらに、芯線圧着部24の一対の芯線圧着片24bが端部13aに加締められた状態で、一対の芯線圧着片24bの突出方向における先端部間に隙間が生じ得るため、この一対の芯線圧着片24bの間で端部13aの中間部分が露出し得る。   Moreover, in the connection part of the terminal 20 and the electric wire 12, the edge part 13a of the core wire 13 is exposed outside by the following each part. That is, the base end of the end 13 a is exposed between the core wire crimping part 24 and the covering crimp part 26. Further, the tip end of the end 13 a is exposed between the core wire crimping portion 24 and the mating connection portion 28. Furthermore, in the state where the pair of core wire crimping pieces 24b of the core wire crimping portion 24 is crimped to the end portion 13a, a gap can be generated between the tips in the protruding direction of the pair of core wire crimping pieces 24b. The middle portion of the end 13a may be exposed between the pieces 24b.

接着剤(「樹脂層」)18は、端子20と電線12との接続部分に供給された流動状態(未硬化状態)の接着剤(「防食剤」)18B(図12、図13参照)が形成する被膜が硬化した(粘度が高くなった)ものである。接着剤18(接着剤18B)は、端子20の底部20aの外側面20cを避けて芯線13の端部13aのうち露出部QAを覆っている。これにより、露出部QAに防食処理がされている。   The adhesive ("resin layer") 18 is a fluid (uncured) adhesive ("anticorrosive") 18B (see FIGS. 12 and 13) supplied to the connection portion between the terminal 20 and the electric wire 12 The film to be formed is cured (the viscosity is increased). The adhesive 18 (adhesive 18 B) covers the exposed portion QA of the end portion 13 a of the core 13 while avoiding the outer side surface 20 c of the bottom portion 20 a of the terminal 20. Thus, the exposed portion QA is protected from corrosion.

芯線13の露出部QAは、芯線13の被覆されていない端部13aのうち端子20(より詳細には、電線接続部22)から露出している部分である。具体的には、露出部QAは、芯線13の端部13aのうち芯線圧着部24に対して被覆圧着部26側に露出する基端側部分Q1と、端部13aのうち一対の芯線圧着片24bの立設方向の先端部同士の間に露出する部分Q2と、端部13aのうち芯線圧着部24に対して被覆圧着部26とは反対側に露出する先端側部分Q3とを合わせた部分である。   The exposed portion QA of the core 13 is a portion of the end 13 a of the core 13 which is not covered, which is exposed from the terminal 20 (more specifically, the wire connection portion 22). Specifically, the exposed portion QA is a portion of the end 13a of the core 13 exposed to the coated crimping portion 26 side with respect to the core crimping portion 24 and a pair of core crimping pieces of the end 13a. A portion obtained by combining a portion Q2 exposed between the tip portions in the erecting direction of 24b and a tip side portion Q3 of the end portion 13a exposed to the opposite side of the core crimping portion 24 to the coated crimping portion 26 It is.

すなわち、基端側部分Q1は、芯線圧着部24と、被覆14の先端との間にある芯線13の外周のうち中間連結部25と接触していない部分である。一対の芯線圧着片24bの突出方向における先端部間に隙間が生じない場合は、部分Q2も生じない。芯線13の先端部分(先端側縁部)は、端子20の芯線圧着片24bから被覆14とは反対側にはみ出しており、先端側部分Q3は、芯線13の先端部分の外周面のうち先端側連結部23と接触していない部分と、芯線13の先端面S1である。   That is, the base end side portion Q1 is a portion which is not in contact with the intermediate connection portion 25 in the outer periphery of the core wire 13 between the core wire crimping portion 24 and the front end of the coating 14. In the case where no gap is generated between the tip end portions of the pair of core wire crimping pieces 24b in the protruding direction, the portion Q2 is not generated either. The tip end portion (tip end side edge portion) of the core wire 13 protrudes from the core wire crimping piece 24b of the terminal 20 to the opposite side to the coating 14, and the tip end side portion Q3 is the tip end side of the outer peripheral surface of the tip portion of the core wire 13. A portion not in contact with the connecting portion 23 and a tip end surface S1 of the core wire 13.

露出部QAは、上述のように各部分Q1、Q2、Q3を合せた部分である。芯線の断面形状は略円形若しくは略楕円形であることから、露出部QAは、電線接続部22の底部22aを向いた下面露出部QLと、底部22a(20a)と反対方向を向いた上面露出部QUとを合せた部分でもある。上面露出部QUは、換言すれば、露出部QAのうち底部22a(20a)から離れる方向を向いている部分である。さらに換言すれば、上面露出部QUは、露出部QAのうち芯線13の端部13aに対して底部22a(20a)とは反対側から見て露出している部分である。   The exposed portion QA is a portion obtained by combining the portions Q1, Q2 and Q3 as described above. Since the cross-sectional shape of the core wire is substantially circular or elliptical, the exposed portion QA is the lower surface exposed portion QL facing the bottom 22a of the wire connection portion 22, and the upper surface exposed opposite to the bottom 22a (20a) It is also a part that combines the part QU. The upper surface exposed portion QU is, in other words, a portion of the exposed portion QA facing in a direction away from the bottom portion 22a (20a). Furthermore, in other words, the upper surface exposed portion QU is a portion exposed in the exposed portion QA viewed from the opposite side to the bottom portion 22a (20a) with respect to the end portion 13a of the core wire 13.

接着剤18は、接着対象領域R1を覆い、接着対象領域R1に接着した状態で硬化している。接着対象領域R1は、少なくとも露出部QAを含んでいる。接着対象領域R1が露出部QAよりも広い領域であってもよい。   The adhesive 18 covers the bonding target region R1 and is cured in a state of being bonded to the bonding target region R1. The adhesion target area R1 includes at least the exposed portion QA. The adhesion target area R1 may be a wider area than the exposed portion QA.

図1、図2の例では、接着対象領域R1は、露出部QAの他に、端子20の長さ方向における一対の側壁部23bの基端側部分のうち立設方向先端側部分をさらに含む。また、接着対象領域R1は、一対の芯線圧着片24bの立設方向先端側部分(一対の芯線圧着片24bのうち底部22aの近傍部分を除く部分)と、中間連結部25の一対の側壁部25bのうち立設方向先端側部分(一対の側壁部25bのうち底部22aの近傍部分を除く部分)をさらに含んでもよい。また、接着対象領域R1は、被覆14の先端側縁部と、端子20の長さ方向における一対の被覆圧着片26bの先端側部分のうち立設方向先端側部分(一対の被覆圧着片26bのうち底部22aの近傍部分を除く部分)をさらに含んでもよい。また、接着対象領域R1は、端子20(電線接続部22)の底部20a(22a)を含まない。なお、接着対象領域R1は、通常、後述する塗布対象領域R2に含まれ、塗布対象領域R2よりも小さい領域となる。   In the example of FIG. 1 and FIG. 2, the adhesion target region R1 further includes the tip end side portion in the standing direction of the base end side portions of the pair of side wall portions 23b in the length direction of the terminal 20 in addition to the exposed portion QA. . The adhesion target region R1 includes the pair of core wire crimping pieces 24b in the standing direction (the portion excluding the portion near the bottom 22a of the pair of core crimping pieces 24b) and the pair of side wall portions of the intermediate connecting portion 25. It may further include a leading end side portion in the standing direction (a portion excluding a portion near the bottom portion 22a in the pair of side wall portions 25b) of 25b. The adhesion target region R1 is a portion on the tip end side of the tip end side edge of the coating 14 and the tip end side portion of the tip end side portion of the pair of coated crimping pieces 26b in the length direction of the terminal 20 (a pair of coated crimping pieces 26b It may further include a portion excluding the portion near the bottom 22a. Moreover, adhesion object area | region R1 does not contain the bottom part 20a (22a) of the terminal 20 (electric wire connection part 22). In addition, adhesion object area | region R1 is normally contained in application object area | region R2 mentioned later, and turns into an area | region smaller than application object area | region R2.

図3に例として示される先端側連結部23のように、芯線圧着部24、被覆圧着部26が加締められることにより端子20が電線12に圧着された後においても、特に、先端側連結部23と、中間連結部25とは、芯線圧着部24等が加締められる前の形状を略維持する。すなわち、端子20が電線12に圧着された場合においても、先端側連結部23(中間連結部25)の側壁部23b(25b)は、底板部23a(25a)に対して略垂直に立設される。   Even after the terminal 20 is crimped to the electric wire 12 by caulking the core wire crimping portion 24 and the cover crimping portion 26 as in the tip-side connecting portion 23 shown as an example in FIG. 3, particularly, the tip-side connecting portion 23 and the intermediate connection portion 25 substantially maintain the shape before the core wire crimping portion 24 and the like are crimped. That is, even when the terminal 20 is crimped to the electric wire 12, the side wall portion 23b (25b) of the distal end side connection portion 23 (intermediate connection portion 25) is erected substantially perpendicularly to the bottom plate portion 23a (25a) Ru.

一方、芯線13の断面形状は丸みを帯びている。このため、露出部QAのうち、端子20の先端側連結部23(中間連結部25)に位置する先端側部分Q3(基端側部分Q1)と、先端側連結部23(中間連結部25)との間には、隙間が維持される。   On the other hand, the cross-sectional shape of the core wire 13 is rounded. Therefore, in the exposed portion QA, the distal end side portion Q3 (proximal end portion Q1) located at the distal end side connecting portion 23 (intermediate connecting portion 25) of the terminal 20, and the distal end side connecting portion 23 (intermediate connecting portion 25) A gap is maintained between the

芯線13の端部13aは、電線接続部22の底部22aとも接触するため、この接触部分においても異種金属接触腐食が発生し得る。そこで、当該隙間にも流動状態の接着剤18Bが入り込んで硬化し、接着剤18となっている。また、芯線13を構成する素線同士の隙間にも流動状態の接着剤18Bが浸透して硬化し、接着剤18となっている。   Since the end 13 a of the core 13 also contacts the bottom 22 a of the wire connection portion 22, dissimilar metal contact corrosion can occur also at this contact portion. Therefore, the adhesive 18 B in a fluid state enters into the gap and is hardened to form the adhesive 18. In addition, the adhesive 18 B in a fluid state penetrates into a gap between the strands of the core wire 13 and hardens to form an adhesive 18.

フィルム(「接着膜」とも称する)19は、接着剤18によって、端子20の底部20aの外側面20cを避けて芯線13の露出部QAの上面露出部QUに接着されている。このことによっても、露出部QAに防食処理がされている。接着剤18は、好ましくは、フィルム19が上面露出部QUに沿った形状となるようにフィルム19と上面露出部QUとを接着している。なお、フィルム19の材質は、合成樹脂に限定されない。   The film (also referred to as “adhesive film”) 19 is bonded to the upper exposed portion QU of the exposed portion QA of the core 13 by the adhesive 18 so as to avoid the outer side surface 20 c of the bottom 20 a of the terminal 20. Also in this case, the exposed portion QA is protected from corrosion. The adhesive 18 preferably bonds the film 19 and the upper exposed portion QU so that the film 19 has a shape along the upper exposed portion QU. The material of the film 19 is not limited to synthetic resin.

図1〜図3に示される例では、上述のように、接着剤18は、接着対象領域R1に接着している。接着対象領域R1は、少なくとも露出部QAを含んでいる。フィルム19は、当該接着剤18によって、接着対象領域R1のうち上面露出部QUに対応した部分に接着されているとともに、接着対象領域R1のうち一対の側壁部23b、一対の芯線圧着片24b、一対の側壁部25b、一対の被覆圧着片26b、および被覆14の端部に対応した部分にも接着されている。電線12と端子20との接続部分のうちフィルム19が接着されている領域は被覆対象領域R3である。   In the example shown in FIGS. 1 to 3, as described above, the adhesive 18 adheres to the adhesion target area R1. The adhesion target area R1 includes at least the exposed portion QA. The film 19 is adhered to a portion corresponding to the upper surface exposed portion QU in the adhesion target region R1 by the adhesive 18, and the pair of side wall portions 23b and the pair of core wire crimping pieces 24b in the adhesion target region R1. It adheres also to a part corresponding to an end of a pair of side wall parts 25b, a pair of covering crimped pieces 26b, and a covering 14. The area | region where the film 19 is adhere | attached among the connection parts of the electric wire 12 and the terminal 20 is covering object area | region R3.

フィルム19の一部は、好ましくは、芯線13の先端部分から被覆14とは反対側にはみ出している。接着剤18のうち芯線13の先端面S1を覆う部分は、フィルム19の当該一部にも接着している。また、フィルム19の当該一部は、好ましくは、芯線13の先端面S1側に曲がっている。   A portion of the film 19 preferably protrudes from the tip end portion of the core 13 to the side opposite to the coating 14. The portion of the adhesive 18 covering the tip end surface S1 of the core wire 13 is also adhered to the part of the film 19. Further, preferably, the portion of the film 19 is bent toward the tip end surface S1 side of the core wire 13.

<端子付電線の製造工程>
図5は、端子付電線10の製造工程を示すフローチャートである。図5に示されるように、端子付電線10が製造される場合は、先ず、電線12の端部に端子20が接続された端子付電線10A(図6、図7参照)が準備される(ステップS10)。
<Manufacturing process of electric wire with terminal>
FIG. 5 is a flowchart showing the manufacturing process of the terminal-attached electric wire 10. As shown in FIG. 5, when the terminal-equipped electric wire 10 is manufactured, first, the terminal-equipped electric wire 10A (see FIGS. 6 and 7) having the terminal 20 connected to the end of the electric wire 12 is prepared (see FIGS. 6 and 7). Step S10).

具体的には、電線12と端子20とがそれぞれ用意される。そして、電線12の被覆14の端部が、端子20の被覆圧着部26における一対の被覆圧着片26bの間に位置し、芯線13の端部13aが芯線圧着部24における一対の芯線圧着片24bの間に位置するように端子20に対して電線12が配置される。この状態で、被覆圧着部26の被覆圧着片26bは、底板部26a上の被覆14側(内側)へ曲げられる(加締められる)とともに、芯線圧着部24の芯線圧着片24bは、底板部24a上の端部13a側(内側)へ曲げられる(加締められる)。   Specifically, the electric wire 12 and the terminal 20 are respectively prepared. The end of the sheath 14 of the electric wire 12 is located between the pair of coated crimping pieces 26 b in the sheath crimping part 26 of the terminal 20, and the end 13 a of the core 13 is a pair of core crimping pieces 24 b in the core crimping part 24. The wire 12 is disposed relative to the terminal 20 so as to be located between the two. In this state, the coated crimped portion 26b of the coated crimped portion 26 is bent (swept) to the coated 14 side (inner side) on the bottom plate portion 26a, and the cored wire crimped portion 24b of the cored wire crimped portion 24 is the bottom plate portion 24a. It is bent (swaged) to the upper end 13a side (inward).

これにより、被覆圧着部26において、底板部26aと2つの被覆圧着片26bとが被覆14の端部に圧着された状態でこれを保持し、芯線圧着部24において、底板部24aと2つの芯線圧着片24bとが端部13aに圧着された状態でこれを保持する。これにより、防食処理が施されていない端子付電線10Aが製造される。端子付電線10Aにおいて、被覆14の先端側縁部は、中間連結部25の位置に位置し、一部が側壁部25bの間から露出している。同様に、芯線13の端部13aの先端側縁部は、先端側連結部23の位置に位置し、一部が側壁部23bの間から露出している。   Thereby, in the coated crimping portion 26, the bottom plate portion 26a and the two coated crimped pieces 26b are held in a state of being crimped to the end portion of the coating 14, and in the core wire crimping portion 24, the bottom plate portion 24a and the two core wires The crimping piece 24b is held in a state of being crimped to the end 13a. Thus, the terminal-attached electric wire 10A not subjected to the anticorrosion treatment is manufactured. In the terminal-attached electric wire 10A, the tip end side edge portion of the coating 14 is located at the position of the intermediate connection portion 25, and a portion is exposed from between the side wall portions 25b. Similarly, the tip end side edge portion of the end portion 13a of the core wire 13 is located at the position of the tip end side connecting portion 23, and a portion is exposed from between the side wall portions 23b.

芯線13は複数の素線の束であり、芯線13の端部13aのうち先端部分が芯線圧着部24から端子20の先端側に出ている。芯線圧着部24が端部13aに圧着すると、圧着された部分における各素線は芯線圧着部24によって芯線13の中心方向に押しつけられ、隣接する素線同士は密着する。密着させられた各素線には、互いに離れる方向に反力が作用する。芯線13の先端部分は、先端部分の径方向外側への拡がりを規制されていない。このため、芯線13の先端部分の外周近傍の各素線は、芯線13の径方向外側へ曲げられる。これにより、芯線13の先端部分の径、すなわち先端部分を構成する素線束の径は、芯線13の先端面S1に向かって大きくなる。先端面S1を構成する各素線のうち、特に先端面S1の周縁部分を構成する各素線の間には、大きな好きな隙間が生じる。   The core 13 is a bundle of a plurality of strands, and the tip of the end 13 a of the core 13 extends from the core crimping part 24 to the tip of the terminal 20. When the core wire crimping portion 24 is crimped to the end portion 13a, the individual strands in the crimped portion are pressed by the core wire crimping portion 24 in the center direction of the core wire 13, and adjacent strands adhere closely. A reaction force acts on each of the closely attached strands in a direction away from each other. The distal end portion of the core wire 13 is not restricted in the radially outward spread of the distal end portion. For this reason, each strand in the vicinity of the outer periphery of the tip portion of the core wire 13 is bent outward in the radial direction of the core wire 13. Thereby, the diameter of the tip end portion of the core wire 13, that is, the diameter of the wire bundle that constitutes the tip portion becomes larger toward the tip surface S1 of the core wire 13. Among the strands constituting the tip end surface S1, a large favorite gap is generated, in particular, between the strands constituting the peripheral portion of the tip end surface S1.

次に、端子付電線10Aに対して接着剤18Bの塗布が行われる(図5のステップS20)。より詳細には、芯線13の端部13aのうち端子20から露出している露出部QAを覆うように、流動状態の接着剤18Bが露出部QAに塗布される。図6(図7)は、接着剤18Bが、露出部QAを含む塗布対象領域R2を覆うように塗布された状態を示す概略側面図(概略平面図)である。接着剤18Bは、例えば、ディスペンサーなどによって複数の液滴として塗布対象領域R2に順次に供給され、塗布対象領域R2の周縁部へ拡がり、塗布対象領域R2に未硬化状態の防食被膜を形成する。図6の塗布対象領域R2は、図1の接着対象領域R1を含み、接着対象領域R1よりも大きい。接着対象領域R1の外部に塗布されている接着剤18Bは、後述するステップS40において、その量が減らされるので、被覆対象領域R3の範囲、および被覆対象領域R3に塗布される接着剤18Bの膜厚は、厳密に設定される必要は無い。塗布対象領域R2は、端子20(電線接続部22)の底部20a(22a)の少なくとも一部を含んでいてもよいが、塗布対象領域R2は、底部20a(22a)を含まないことが好ましい。   Next, the adhesive 18B is applied to the terminal-attached electric wire 10A (step S20 in FIG. 5). More specifically, the adhesive 18 B in a fluid state is applied to the exposed portion QA so as to cover the exposed portion QA of the end portion 13 a of the core 13 exposed from the terminal 20. FIG. 6 (FIG. 7) is a schematic side view (schematic plan view) showing a state in which the adhesive 18B is applied so as to cover the application target area R2 including the exposed portion QA. The adhesive 18B is sequentially supplied to the application target region R2 as a plurality of droplets, for example, by a dispenser or the like, spreads to the peripheral portion of the application target region R2, and forms an uncured anticorrosive coating on the application target region R2. The application target area R2 of FIG. 6 includes the adhesion target area R1 of FIG. 1 and is larger than the adhesion target area R1. Since the amount of the adhesive 18B applied to the outside of the adhesion target area R1 is reduced in step S40 described later, the film of the adhesive 18B applied to the range of the coverage target area R3 and the coverage target area R3 The thickness does not have to be set strictly. Although the application target area R2 may include at least a part of the bottom 20a (22a) of the terminal 20 (wire connection portion 22), the application target area R2 preferably does not include the bottom 20a (22a).

接着剤18Bとしては、電線12の内部の素線間に浸透して、浸透した場所においても硬化可能な接着剤が採用される。接着剤18Bとして、例えば、湿気硬化型接着剤、嫌気硬化型接着剤、主剤と硬化剤とからなる2液型接着剤などが採用される。湿気硬化型接着剤として、例えば、シリコ−ンやシアノアクリレート等が採用される。シリコーンに添加剤としてシランカップリング剤が添加されてもよい。嫌気硬化型接着剤としては、例えば、ハイドロパーオキサイド類、ケトンパーオキサイド類、ジアリルパーオキサイド類、パーオキシエステル類等アクリレートなどの有機過酸化物が採用される。接着剤18Bとしてエポキシ等を主成分とするカチオン硬化性接着剤が用いられてもよい。   As the adhesive 18B, an adhesive which can penetrate between the strands inside the electric wire 12 and can be cured even at the infiltrated position is employed. As the adhesive 18B, for example, a moisture curing adhesive, an anaerobic curing adhesive, a two-component adhesive comprising a main agent and a curing agent, or the like is employed. As the moisture-curable adhesive, for example, silicone, cyanoacrylate or the like is employed. A silane coupling agent may be added to the silicone as an additive. As the anaerobic curable adhesive, for example, organic peroxides such as hydroperoxides, ketone peroxides, diallyl peroxides, peroxy esters such as acrylates, etc. are employed. As the adhesive 18 </ b> B, a cation curable adhesive having an epoxy or the like as a main component may be used.

接着剤18Bの塗布が行われた後に、塗布されている接着剤18Bの上に、フィルム19が露出部QAのうち上面露出部QUを覆うように載置される(図5のステップS30)。図8(図9)は、フィルム19が、上面露出部QUを含む接着対象領域を覆うように接着剤18B上に載置された状態を示す概略側面図(概略平面図)である。図8に示されるフィルム19は、端子20の幅方向の中央を通り、底部20aに垂直な切断面における断面によって示されている。   After application of the adhesive 18B is performed, the film 19 is placed on the coated adhesive 18B so as to cover the upper exposed portion QU of the exposed portions QA (Step S30 in FIG. 5). FIG. 8 (FIG. 9) is a schematic side view (schematic plan view) showing a state where the film 19 is placed on the adhesive 18B so as to cover the adhesion target area including the upper exposed portion QU. The film 19 shown in FIG. 8 is shown by a cross section in a cross section perpendicular to the bottom 20 a through the center in the width direction of the terminal 20.

ここで、上述のように先端面S1を構成する各素線のうち、特に先端面S1の周縁部分を構成する各素線の間には、大きな好きな隙間が生じる。このため、接着剤18Bの粘度が低い場合は、接着剤18Bは先端面S1、特に先端面S1の周縁部分を構成する各素線の先端に付着しにくい。このため、当該各素線の先端が接着剤18Bによって覆われず、露出してしまうおそれがある。   Here, as described above, among the strands constituting the tip end surface S1, a large favorite gap is generated particularly between the strands constituting the peripheral portion of the tip end surface S1. For this reason, when the viscosity of the adhesive 18B is low, the adhesive 18B does not easily adhere to the end surface S1, particularly to the ends of the strands constituting the peripheral portion of the end surface S1. For this reason, there is a possibility that the tip of each wire concerned may be exposed without being covered with adhesive agent 18B.

一方、接着剤18Bの粘度が高い場合は、先端面S1において各素線の先端が接着剤18Bから露出するおそれは低下するが、上面露出部QUにおいては、接着剤18Bが形成する膜が厚くなりすぎて、製造される端子付電線10とコネクタハウジングとの間のクリアランスが不足するおそれがある。   On the other hand, when the viscosity of the adhesive 18B is high, the possibility that the tip of each wire is exposed from the adhesive 18B on the tip surface S1 decreases, but the film formed by the adhesive 18B is thick in the upper exposed portion QU. If so, the clearance between the terminal-equipped electric wire 10 and the connector housing may be insufficient.

そこで、上面露出部QUにおいて接着剤18Bが形成する膜が厚くなりすぎず、かつ、芯線13の先端面S1において素線の先端が接着剤18Bから露出しないようにするために、塗布された接着剤18B上にフィルム19が載置される。   Therefore, the adhesive applied in order that the film formed by the adhesive 18B does not become too thick in the upper exposed portion QU and that the tip of the wire is not exposed from the adhesive 18B at the tip surface S1 of the core 13 The film 19 is placed on the agent 18B.

製造された端子付電線10において、硬化した接着剤18は、接着対象領域R1(図1、図2)に接着している。端子付電線10において、フィルム19は、当該接着剤18と略重なり合うように当該接着剤18によって接着されている。より詳細には、フィルム19は、電線12と端子20との接続部分における被覆対象領域R3との間に接着剤18を挟んだ状態で、接着剤18によって被覆対象領域R3に接着される。   In the manufactured terminal-attached electric wire 10, the cured adhesive 18 adheres to the bonding target region R1 (FIGS. 1 and 2). In the terminal-attached electric wire 10, the film 19 is bonded by the adhesive 18 so as to substantially overlap with the adhesive 18. More specifically, the film 19 is bonded to the area to be covered R3 by the adhesive 18 with the adhesive 18 sandwiched between the area to be covered R3 at the connection portion between the electric wire 12 and the terminal 20 and the area to be covered R3.

被覆対象領域R3は、接着対象領域R1のうち上面露出部QUに対応した部分と、接着対象領域R1のうち一対の側壁部23b、一対の芯線圧着片24b、一対の側壁部25b、一対の被覆圧着片26b、および被覆14の端部に対応した部分からなる。被覆対象領域R3は、端子20(電線接続部22)の底部20a(22a)を含まない。   The covering target region R3 is a portion corresponding to the upper surface exposed portion QU in the bonding target region R1, and a pair of side wall portions 23b, a pair of core wire crimping pieces 24b, a pair of side wall portions 25b, a pair of coverings in the bonding target region R1. It comprises a crimped portion 26 b and a portion corresponding to the end of the coating 14. The covering target region R3 does not include the bottom 20a (22a) of the terminal 20 (the wire connection portion 22).

図1〜図3、図12、図13に示されるように、被覆対象領域R3は、少なくとも露出部QAの上面露出部QUを含む。被覆対象領域R3は、他に、端子20の長さ方向における一対の側壁部23bの基端側部分のうち立設方向先端側部分をさらに含んでもよい。また、被覆対象領域R3は、好ましくは、一対の芯線圧着片24bの立設方向先端側部分(一対の芯線圧着片24bのうち底部22aの近傍部分を除く部分)と、中間連結部25の一対の側壁部25bのうち立設方向先端側部分(一対の側壁部25bのうち底部22aの近傍部分を除く部分)を含んでもよい。被覆対象領域R3は、被覆14の先端側縁部と、端子20の長さ方向における一対の被覆圧着片26bの先端側部分のうち立設方向先端側部分(一対の被覆圧着片26bのうち底部22aの近傍部分を除く部分)を含んでもよい。   As shown in FIGS. 1 to 3 and FIGS. 12 and 13, the covering target area R3 includes at least the upper surface exposed portion QU of the exposed portion QA. In addition, the covering target region R3 may further include a leading end portion in the standing direction of the base end portions of the pair of side wall portions 23b in the length direction of the terminal 20. Further, preferably, the covering target region R3 is a pair of core wire crimping pieces 24b in the standing direction (a portion excluding the portion near the bottom 22a of the pair of core crimping pieces 24b) and a pair of intermediate connecting portions 25. The side wall 25b may include the front end portion in the standing direction (a portion of the pair of side walls 25b excluding the portion near the bottom 22a). The covering target region R3 is a portion in a standing direction of a tip end side edge of the coating 14 and a tip end side portion of a pair of coated crimping pieces 26b in the length direction of the terminal 20 (a bottom portion of the pair of coated crimping pieces 26b 22) may be included.

フィルム19は、接着剤18によって被覆対象領域R3に接着されるため、被覆対象領域R3と重なる大きさを有している。すなわち、フィルム19は、上面露出部QUへの接着を、端子20の底部20aの外側面20cを避けて芯線13の露出部QAのうち上面露出部QUを覆う状態で、なされ得る形状および大きさを有している。また、当該ステップS30において、塗布されている接着剤18Bの上にフィルム19が載置される際には、フィルム19は、被覆対象領域R3に重なり合って接着され得るように配置される。フィルム19は、例えば、作業者がシート状のフィルムを上記の形状および大きさに切断することによって用意され、作業者によって塗布されている接着剤18Bの上に載置される。   The film 19 is adhered to the area to be coated R3 by the adhesive 18, and thus has a size overlapping with the area to be coated R3. That is, the film 19 may have a shape and size that can be adhered to the upper surface exposed portion QU in a state of covering the upper surface exposed portion QU among the exposed portions QA of the core wire 13 while avoiding the outer side surface 20c of the bottom 20a of the terminal 20. have. In addition, when the film 19 is placed on the applied adhesive 18B in the step S30, the film 19 is disposed so as to be overlapped and adhered to the region R3 to be covered. The film 19 is prepared, for example, by the worker cutting the sheet-like film into the above shape and size, and is placed on the adhesive 18B applied by the worker.

芯線13の先端部分は、端子20の芯線圧着片24bから被覆14とは反対側にはみ出している。フィルム19は、好ましくは、芯線13の先端部分から被覆14とは反対側にはみ出すように、接着剤18Bの上にフィルム19を載置される。   The tip end portion of the core wire 13 protrudes from the core wire crimping piece 24 b of the terminal 20 to the opposite side to the coating 14. The film 19 is preferably placed on the adhesive 18 B so as to protrude from the end portion of the core 13 to the side opposite to the coating 14.

フィルム19としては、例えば、ポリイミド、ポリオレフィン、ポリ塩化ビニリデンなどから製造されるフィルムが採用される。また、フィルム19の取扱いの容易さと、端子付電線10とコネクタハウジングとの間のクリアランス不足の防止とを考慮して、フィルム19の厚さは、好ましくは、例えば、10μm〜40μmの範囲に設定される。   As the film 19, for example, a film made of polyimide, polyolefin, polyvinylidene chloride or the like is employed. Further, in consideration of the ease of handling the film 19 and the prevention of the insufficient clearance between the terminal-attached electric wire 10 and the connector housing, the thickness of the film 19 is preferably set in the range of 10 μm to 40 μm, for example. Be done.

フィルムの載置が完了すると、芯線13の露出部QAとフィルム19との間に存在する接着剤18Bの量と、端子20の底部20aの外側面20cに付着している接着剤18Bの量とを減少させる減少処理が行われる(図5のステップS40)。図10(図11)は、フィルム19が載置された端子付電線10Aに対して当該減少処理が行われている状態を示す概略側面図(概略平面図)である。図12(図13)は、図10、図11に示される端子付電線10Aに対して当該減少処理が施されて端子付電線10が製造される状態を示す概略側面図(概略平面図)である。図10、図12に示されるフィルム19は、端子20の幅方向の中央を通り、底部20aに垂直な切断面における断面によって示されている。また、図12においては、接着剤18も当該切断面における断面によって示されている。   When the film placement is completed, the amount of the adhesive 18B present between the exposed portion QA of the core 13 and the film 19 and the amount of the adhesive 18B attached to the outer surface 20c of the bottom 20a of the terminal 20 Is reduced (step S40 in FIG. 5). FIG. 10 (FIG. 11) is a schematic side view (schematic plan view) showing a state in which the reduction process is performed on the terminal-attached electric wire 10A on which the film 19 is placed. FIG. 12 (FIG. 13) is a schematic side view (schematic plan view) showing a state in which the terminal-attached electric wire 10A shown in FIG. 10 and FIG. is there. The film 19 shown in FIGS. 10 and 12 passes through the center in the width direction of the terminal 20 and is shown by a cross section in a cut surface perpendicular to the bottom 20 a. Moreover, in FIG. 12, the adhesive 18 is also shown by the cross section in the said cut surface.

図10、図11に示されるように、当該減少処理は、具体的には、例えば、工場の真空排気設備(不図示)に接続された吸引装置70などを用いて行われる。吸引装置(「減圧装置」)70は、電線12と端子20との接続部分よりも大きな径の円筒状の吸引口を含んでいる。吸引装置70は、吸引口の開口が端子20の底部20aに対向するように、底部20aに対して芯線13の露出部QAとは反対側に設けられる。   As shown in FIGS. 10 and 11, specifically, the reduction process is performed using, for example, a suction device 70 connected to a vacuum evacuation system (not shown) of a factory. The suction device (“pressure reduction device”) 70 includes a cylindrical suction port having a diameter larger than the connecting portion of the electric wire 12 and the terminal 20. The suction device 70 is provided on the opposite side to the exposed portion QA of the core wire 13 with respect to the bottom portion 20 a such that the opening of the suction port faces the bottom portion 20 a of the terminal 20.

図10、図13に示されるように、吸引装置70の吸引口内が減圧されると、端子付電線10Aの周囲には、雰囲気の気流99が生ずる。当該当該吸引口は、フィルム19の周りの雰囲気を気流99として吸引する。これにより、端子20の幅方向におけるフィルム19の両端部は、吸引装置70側に引っ張られる。そして、フィルム19は、芯線13の上面露出部QUに押しつけられる。この結果、上面露出部QUとフィルム19との間に存在する接着剤18Bは、フィルム19によってフィルム19の当該両端部から外部に排出されて吸引装置70に吸引される。これにより、接着剤18Bの量が減少し、接着剤18Bが形成する膜の厚さが薄くなる。そして、接着剤18Bは、フィルム19が芯線13の上面露出部QUに沿った形状となるようにフィルム19と上面露出部QUとを接着する。また、端子20の底部20aの外側面20cに付着している接着剤18Bなどの、接着剤18Bのうちフィルム19によって覆われていないものも、吸引装置70により吸引される。吸引装置70によって吸引された接着剤18Bは、吸引装置70の底部に接続されたドレイン管(不図示)によって外部に排出される。   As shown in FIGS. 10 and 13, when the pressure in the suction port of the suction device 70 is reduced, an air flow 99 of the atmosphere is generated around the terminal-attached electric wire 10A. The suction port sucks the atmosphere around the film 19 as an air flow 99. Thus, both ends of the film 19 in the width direction of the terminal 20 are pulled toward the suction device 70. Then, the film 19 is pressed against the upper exposed portion QU of the core wire 13. As a result, the adhesive 18 B present between the upper exposed portion QU and the film 19 is discharged by the film 19 from the both ends of the film 19 to the outside and sucked by the suction device 70. This reduces the amount of adhesive 18B and reduces the thickness of the film formed by adhesive 18B. Then, the adhesive 18 B bonds the film 19 and the upper surface exposed portion QU so that the film 19 has a shape along the upper surface exposed portion QU of the core wire 13. Further, among the adhesive 18B such as the adhesive 18B attached to the outer side surface 20c of the bottom portion 20a of the terminal 20, one not covered by the film 19 is also sucked by the suction device 70. The adhesive 18B sucked by the suction device 70 is discharged to the outside by a drain pipe (not shown) connected to the bottom of the suction device 70.

芯線13は、複数の素線が束ねられることから、その端部13aの断面形状は、通常、略円形または略楕円形となり、端部13aは、先端側連結部23(中間連結部25)の一対の側壁部23b(25b)の突設方向先端側に向けて凸の外周形状を有する。従って、露出部QAの上面露出部QUのうち一対の側壁部23b(25b)の間に露出している部分が、一対の側壁部23b(25b)よりも突設方向先端側に突出していれば上面露出部QUとフィルム19との間に存在する接着剤18Bの排出が容易となるとともに、フィルム19が芯線13の上面露出部QUに沿った形状になり易くなる。   Since a plurality of strands of the core wire 13 are bundled, the cross-sectional shape of the end portion 13a thereof is usually substantially circular or elliptical, and the end portion 13a is of the distal end side connection portion 23 (intermediate connection portion 25). It has a convex outer peripheral shape toward the tip end side of the pair of side wall portions 23b (25b) in the protruding direction. Therefore, if the portion exposed between the pair of side wall portions 23b (25b) in the upper surface exposed portion QU of the exposed portion QA protrudes to the tip end side in the projecting direction more than the pair of side wall portions 23b (25b) The adhesive 18 B existing between the upper exposed portion QU and the film 19 is easily discharged, and the film 19 is likely to be shaped along the upper exposed portion QU of the core wire 13.

接着剤18Bの当該減少処理は、例えば、フィルム19の上部から気流をフィルム19に吹き付けてフィルム19を上面露出部QUに押しつけることによって行われてもよいし、当該気流の吹き付けと、吸引装置70による吸引とが同時に行われてもよい。   The reduction process of the adhesive 18B may be performed, for example, by blowing an air flow from the upper part of the film 19 onto the film 19 to press the film 19 against the upper exposed portion QU. Suction by the same may be performed simultaneously.

接着剤18Bは、ステップS40の減少処理によって、その量が減少された後において、接着剤は未硬化状態である。そこで、接着剤の硬化処理が行われる(図5のステップS50)。例えば、その硬化方法に応じた放置による硬化処理などを施される。これにより接着剤18Bは、硬化して接着剤18となり、端子付電線10が製造される。   The adhesive 18B is in the uncured state after the amount thereof is reduced by the reduction process of step S40. Therefore, curing treatment of the adhesive is performed (step S50 in FIG. 5). For example, a curing process by leaving it according to the curing method is performed. Thus, the adhesive 18B is cured to become the adhesive 18, and the terminal-attached electric wire 10 is manufactured.

上記のように構成された本実施形態に係る端子付電線によれば、端子20の底部20aの外側面を避けて電線12の芯線13の露出部QAを覆っている接着剤18と、接着剤18によって、芯線の露出部のうち端子20の底部20aから離れる方向を向いている上面露出部QUに、底部20aの外側面を避けて接着されているフィルムとを備える。従って、端子20の底部20aの外側面への接着剤18Bとフィルム19との付着が抑制され、芯線13の露出部QAが接着剤18Bによって覆われる。また、上面露出部QUは、フィルム19に覆われるので、上面露出部QUの外部への露出を抑制しつつ、上面露出部QUとフィルム19とに挟まれる接着剤18の量を減らすことができる。これにより、芯線13の露出部QAを防食しつつ、端子付電線の太さの増大を抑制できる。   According to the terminal-equipped electric wire according to the present embodiment configured as described above, the adhesive 18 covering the exposed portion QA of the core 13 of the electric wire 12 while avoiding the outer surface of the bottom portion 20a of the terminal 20 In the exposed portion of the core wire, the exposed upper surface portion QU facing the direction away from the bottom portion 20a of the terminal 20 is provided with a film bonded to the outer surface of the bottom portion 20a by avoiding the outer surface of the bottom portion 20a. Therefore, the adhesion between the adhesive 18B and the film 19 on the outer surface of the bottom portion 20a of the terminal 20 is suppressed, and the exposed portion QA of the core 13 is covered by the adhesive 18B. Further, since the upper surface exposed portion QU is covered by the film 19, the amount of the adhesive 18 sandwiched between the upper surface exposed portion QU and the film 19 can be reduced while suppressing the exposure of the upper surface exposed portion QU to the outside. . Thereby, it is possible to suppress an increase in the thickness of the terminal-attached electric wire while preventing corrosion of the exposed portion QA of the core wire 13.

また、上記のように構成された本実施形態に係る端子付電線によれば、接着剤18は、フィルム19が芯線13の上面露出部QUに沿った形状となるようにフィルム19と上面露出部QUとを接着している。従って、上面露出部QUとフィルム19とに挟まれる接着剤18の量をさらに減らすことができる。   Further, according to the terminal-equipped electric wire according to the present embodiment configured as described above, the adhesive 18 has the film 19 and the upper surface exposed portion such that the film 19 has a shape along the upper surface exposed portion QU of the core wire 13 Bonding with QU. Therefore, the amount of the adhesive 18 sandwiched between the upper exposed portion QU and the film 19 can be further reduced.

また、上記のように構成された本実施形態に係る端子付電線によれば、芯線13の先端部分は、端子20の芯線圧着片24bから被覆14とは反対側にはみ出しており、フィルム19の一部が芯線13の先端部分から被覆14とは反対側にはみ出しており、接着剤18のうち芯線13の先端面S1を覆う部分は、フィルム19の当該一部にも接着している。従って、芯線13の先端において、接着剤18Bは、フィルム19と、芯線13の先端面S1との双方に接した状態となるので安定して保持され、芯線13の先端面S1に付着した接着剤の減少を抑制できる。これにより、芯線13の先端の防食効果を向上できる。   Further, according to the electric wire with a terminal according to the present embodiment configured as described above, the tip end portion of the core wire 13 protrudes from the core wire crimping piece 24 b of the terminal 20 to the opposite side to the coating 14. A portion of the adhesive 13 extends from the end portion of the core 13 to the opposite side to the coating 14, and a portion of the adhesive 18 covering the end surface S 1 of the core 13 adheres to the portion of the film 19. Accordingly, the adhesive 18B is held in contact with both the film 19 and the end surface S1 of the core 13 at the end of the core 13 so that the adhesive 18B is stably held, and the adhesive attached to the end surface S1 of the core 13 You can control the decrease of Thereby, the anticorrosion effect of the tip of core wire 13 can be improved.

また、上記のように構成された本実施形態に係る端子付電線によれば、フィルム19の一部が芯線13の先端部分から被覆14とは反対側にはみ出している。フィルム19の当該一部は、芯線13の先端面S1側に曲がっている。従って、芯線13の先端において、接着剤18は、フィルム19の曲がった部分と、芯線13の先端面S1との双方に挟まれた状態となるのでさらに安定して保持され、芯線13の先端面S1に付着した接着剤の減少をさらに抑制できる。これにより、芯線13の先端の防食効果をさらに向上できる。   Moreover, according to the electric wire with a terminal concerning this embodiment constituted as mentioned above, a part of film 19 has projected to the opposite side to covering 14 from the tip part of core wire 13. The part of the film 19 is bent toward the end surface S1 of the core wire 13. Therefore, at the tip of core wire 13, adhesive 18 is held in both the bent portion of film 19 and tip surface S1 of core wire 13 and thus held more stably, and the tip surface of core wire 13 is The reduction of the adhesive attached to S1 can be further suppressed. Thereby, the anticorrosion effect of the tip of core wire 13 can further be improved.

また、上記のような本実施形態に係る端子付電線の製造方法によれば、芯線13の露出部QAを覆うように露出部QAに接着剤18Bが塗布され、端子20の底部20aの外側面を避けて芯線13の露出部QAのうち底部20aから離れる方向を向いている上面露出部QUを覆うように上面露出部QUへの接着をなされ得る大きさのフィルム19が、接着剤18Bの上に当該接着が可能な配置で載せられる。そして、芯線13の上面露出部QUとフィルム19との間に存在する接着剤18Bの量と、端子20の底部20aの外側面20cに付着している接着剤18Bの量とが減らされる。従って、端子20の底部20aの外側面への接着剤18Bとフィルム19との付着が抑制され、芯線13の露出部QAが接着剤18Bによって覆われる。また、上面露出部QUとフィルム19とに挟まれる接着剤18Bの膜厚を抑制することができる。これにより、製造される端子付電線の芯線13の露出部QAを防食しつつ、端子付電線の太さの増大を抑制できる。   Further, according to the method of manufacturing the terminal-attached electric wire according to the present embodiment as described above, the adhesive 18B is applied to the exposed portion QA so as to cover the exposed portion QA of the core 13 and the outer surface of the bottom portion 20a of the terminal 20 Of the exposed portion QA of the core wire 13 so as to cover the upper exposed portion QU facing away from the bottom portion 20a, a film 19 of a size that can be adhered to the upper exposed portion QU is placed on the adhesive 18B. On top of each other in an arrangement that allows such bonding. Then, the amount of the adhesive 18B present between the upper exposed portion QU of the core wire 13 and the film 19 and the amount of the adhesive 18B attached to the outer side surface 20c of the bottom 20a of the terminal 20 are reduced. Therefore, the adhesion between the adhesive 18B and the film 19 on the outer surface of the bottom portion 20a of the terminal 20 is suppressed, and the exposed portion QA of the core 13 is covered by the adhesive 18B. Further, the film thickness of the adhesive 18B sandwiched between the upper exposed portion QU and the film 19 can be suppressed. Thereby, it is possible to suppress an increase in thickness of the terminal-attached wire while preventing corrosion of the exposed portion QA of the core wire 13 of the terminal-attached wire.

また、上記のような本実施形態に係る端子付電線の製造方法によれば、芯線13の先端部分は、被覆14とは反対側にはみ出しており、フィルム19の一部が芯線13の先端部分から被覆14とは反対側にはみ出すように、接着剤18Bの上に載せられる。従って、芯線13の先端において、接着剤18Bは、フィルム19の一部と、芯線13の先端面S1との双方に接した状態となるので安定して保持され、芯線13の先端面S1に付着した接着剤の減少を抑制できる。これにより、芯線13の先端の防食効果を向上できる。   Further, according to the method of manufacturing the terminal-attached electric wire according to the present embodiment as described above, the tip end portion of the core wire 13 protrudes to the side opposite to the coating 14, and a part of the film 19 is the tip portion of the core wire 13 The adhesive 18B is placed on the adhesive 18B so as to protrude to the side opposite to the coating 14. Therefore, the adhesive 18B is held in contact with both the part of the film 19 and the end surface S1 of the core 13 at the end of the core 13 and is thus held stably, and adheres to the end surface S1 of the core 13 It is possible to suppress the decrease of the adhesive. Thereby, the anticorrosion effect of the tip of core wire 13 can be improved.

また、上記のような本実施形態に係る端子付電線の製造方法によれば、フィルム19の周りの雰囲気が、端子20の底部20aに対して芯線13の露出部QAとは反対側から吸引されて、フィルム19が芯線13の上面露出部QUに押しつけられることによって上面露出部QUとフィルム19との間に存在する接着剤18Bの量が減らされる。従って、芯線13の露出部QAとフィルム19との間の接着剤18Bの膜厚をより効率的に減らすことができる。   Further, according to the method of manufacturing the terminal-attached electric wire according to the present embodiment as described above, the atmosphere around the film 19 is attracted to the bottom 20 a of the terminal 20 from the opposite side of the exposed portion QA of the core 13. Thus, the amount of adhesive 18 B existing between the upper exposed portion QU and the film 19 is reduced by pressing the film 19 against the upper exposed portion QU of the core wire 13. Accordingly, the film thickness of the adhesive 18B between the exposed portion QA of the core 13 and the film 19 can be reduced more efficiently.

以上のようにこの発明は詳細に説明されたが、上記した説明は、すべての局面において、例示であって、この発明がそれに限定されるものではない。例示されていない無数の変形例が、この発明の範囲から外れることなく想定され得るものと解される。   As mentioned above, although this invention was explained in detail, the above-mentioned explanation is illustration in all the aspects, and this invention is not limited to it. It is understood that countless variations not illustrated are conceivable without departing from the scope of the present invention.

10,10A 端子付電線
12 電線
13 芯線
13a 端部
14 被覆(絶縁被覆)
20 端子
20a 底部
24 芯線圧着部
24b 芯線圧着片
18,18B 接着剤
QA 露出部
QU 上面露出部
19 フィルム(接着膜)
70 吸引装置
10, 10A Wire with terminal 12 Electric wire 13 Core wire 13a End 14 Coating (insulation coating)
20 terminal 20a bottom portion 24 core wire crimping portion 24b core wire crimping piece 18, 18B adhesive QA exposed portion QU upper surface exposed portion 19 film (adhesive film)
70 suction device

Claims (9)

芯線と、前記芯線の端部を避けて前記芯線の外周を覆う絶縁被覆とを含む電線と、
底部と、前記底部の一部から突出する芯線圧着片とを含み、前記芯線圧着片が前記芯線の前記端部に圧着されている端子と、
フィルムが溶けないで前記端子の前記底部の外側面を避けて前記芯線の前記端部のうち露出部と前記芯線圧着片の立設方向先端とを覆った状態となっている接着膜と、
を備える、端子付電線。
A wire including a core wire and an insulation coating which covers an outer periphery of the core wire, avoiding an end of the core wire;
A terminal including a bottom portion and a core wire crimping piece protruding from a part of the bottom portion, wherein the core wire crimping piece is crimped to the end of the core wire;
An adhesive film which is in a state in which the film does not melt and which covers the exposed portion of the ends of the core wire and the tip in the erecting direction of the core wire crimping pieces, avoiding the outer surface of the bottom of the terminal;
Terminal-equipped electric wire.
請求項1に記載の端子付電線であって、
前記接着膜は、前記芯線の前記露出部のうち前記底部から離れる方向を向いている上面露出部に沿った形状となるように前記上面露出部に接着されている、端子付電線。
It is the electric wire with a terminal according to claim 1, and
The terminal-attached electric wire, wherein the adhesive film is bonded to the upper surface exposed portion so as to have a shape along the upper surface exposed portion facing in a direction away from the bottom portion among the exposed portions of the core wire.
芯線と、前記芯線の端部を避けて前記芯線の外周を覆う絶縁被覆とを含む電線と、
底部と、前記底部の一部から突出する芯線圧着片とを含み、前記芯線圧着片が前記芯線の前記端部に圧着されている端子と、
前記端子の前記底部の外側面を避けて前記芯線の前記端部のうち露出部を覆っている接着膜と、
を備え、
前記接着膜は、樹脂層を介して前記露出部に接着されている、端子付電線。
A wire including a core wire and an insulation coating which covers an outer periphery of the core wire, avoiding an end of the core wire;
A terminal including a bottom portion and a core wire crimping piece protruding from a part of the bottom portion, wherein the core wire crimping piece is crimped to the end of the core wire;
An adhesive film covering an exposed portion of the end portion of the core wire, avoiding the outer side surface of the bottom portion of the terminal;
Equipped with
The terminal-attached electric wire wherein the adhesive film is bonded to the exposed portion through a resin layer.
請求項3に記載の端子付電線であって、
前記接着膜は、フィルムである、端子付電線。
It is the electric wire with a terminal according to claim 3 , and
The said adhesive film is a film, The electric wire with a terminal.
請求項1から請求項4のいずれか1項に記載の端子付電線であって、
前記芯線の先端部分は、前記端子の前記芯線圧着片から前記絶縁被覆とは反対側にはみ出しており、
前記接着膜の一部は、前記芯線の前記先端部分から前記絶縁被覆とは反対側にはみ出している、端子付電線。
It is an electric wire with a terminal according to any one of claims 1 to 4,
The tip portion of the core wire protrudes from the core wire crimping piece of the terminal to the side opposite to the insulating coating,
The terminal-attached electric wire, wherein a part of the adhesive film protrudes from the tip end portion of the core wire to the side opposite to the insulating coating.
請求項5に記載の端子付電線であって、
前記接着膜の一部は、前記芯線の先端面側に曲がっている、端子付電線。
It is the electric wire with a terminal according to claim 5,
The portion of the adhesive film is bent first end face side of the core wire, the electric wire with the terminal.
端子の底部の一部から突出する芯線圧着片が電線の芯線のうち絶縁被覆から露出している端部に対して圧着され、前記芯線の前記端部のうち露出部に防食処理がされている端子付電線の製造方法であって、
前記端子の前記底部の外側面を避けて前記芯線の前記露出部のうち前記底部から離れる方向を向いている上面露出部を覆うように前記上面露出部への接着をなされ得る大きさの接着膜を載せる接着膜載置工程と、
前記接着膜の周りの雰囲気を吸引して前記接着膜を前記芯線の前記上面露出部に押しつける工程と、
を備える、端子付電線の製造方法。
The crimped core piece projecting from a portion of the bottom of the terminal is crimped against the end of the core of the wire exposed from the insulating coating, and the exposed portion of the end of the core is corroded. It is a manufacturing method of the electric wire with a terminal, and
An adhesive film of such a size that adhesion to the upper surface exposed portion can be made so as to cover the upper surface exposed portion facing the direction away from the bottom portion of the exposed portion of the core wire avoiding the outer side surface of the bottom portion of the terminal Adhesive film mounting process for mounting
Suctioning an atmosphere around the adhesive film to press the adhesive film against the upper exposed portion of the core wire;
A method of manufacturing a terminal-equipped electric wire, comprising:
請求項7に記載の端子付電線の製造方法であって、
前記芯線の先端部分は、前記端子の前記芯線圧着片から前記絶縁被覆とは反対側にはみ出しており、
前記接着膜載置工程は、
前記接着膜の一部が前記芯線の先端部分から前記絶縁被覆とは反対側にはみ出すように、前記接着膜を載せる工程である、端子付電線の製造方法。
It is a manufacturing method of the electric wire with a terminal according to claim 7,
The tip portion of the core wire protrudes from the core wire crimping piece of the terminal to the side opposite to the insulating coating,
The adhesive film mounting step is
A method of manufacturing a terminal-attached electric wire, which is a step of mounting the adhesive film so that a part of the adhesive film protrudes from the end portion of the core wire to the opposite side to the insulating coating.
請求項7または請求項8に記載の端子付電線の製造方法であって、
前記接着膜を前記上面露出部に接着する工程をさらに備える端子付電線の製造方法。
A method of manufacturing a terminal-attached electric wire according to claim 7 or claim 8, wherein
The manufacturing method of the electric wire with a terminal further provided with the process of adhere | attaching the said adhesive film to the said upper surface exposure part.
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