JP2014089831A - Method of manufacturing wire harness - Google Patents

Method of manufacturing wire harness Download PDF

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JP2014089831A
JP2014089831A JP2012238046A JP2012238046A JP2014089831A JP 2014089831 A JP2014089831 A JP 2014089831A JP 2012238046 A JP2012238046 A JP 2012238046A JP 2012238046 A JP2012238046 A JP 2012238046A JP 2014089831 A JP2014089831 A JP 2014089831A
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annular
insertion hole
annular protrusions
wire harness
annular protrusion
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Yuta Kataoka
裕太 片岡
Keiichi Ouchi
啓一 大内
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Proterial Ltd
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Hitachi Metals Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing a wire harness in which molten resin can be introduced between the outer peripheral surface of a wire and the inner peripheral surface of an insertion hole for inserting the wire, in an ultrasonic vibration step.SOLUTION: A method of manufacturing a wire harness includes an arrangement step for arranging a welding member 3 constituting a housing 10 and a body member 2 such that they are opposed to each other along the axial direction of a wire 11, and an ultrasonic vibration step for vibrating the welding member 3 and body member 2 while being pressed with an ultrasonic horn 81. The welding member 3 has first through third annular protrusions 311-313, and a stepped surface 230b in contact with the first through third annular protrusions 311-313 is formed in the body member 2. In the ultrasonic vibration step, outward flow of a molten resin 3a produced by melting of the first and second annular protrusions 311, 312 is suppressed by the third annular protrusion 313, and the molten resin 3a is made to flow between the inner peripheral surface 31a of an insertion hole 310 and the outer peripheral surface 11a of the wire 11.

Description

本発明は、電線の端部に接続された端子を樹脂からなるハウジングに収容してなるワイヤハーネスの製造方法に関する。   The present invention relates to a method for manufacturing a wire harness in which a terminal connected to an end of an electric wire is housed in a housing made of resin.

ケーブルと、ケーブルの端部が挿入される挿入孔が形成された樹脂からなるハウジングと、このハウジングに収容された端子とを備えたワイヤハーネスの製造方法として、樹脂からなる溶着部材がハウジングの本体部に超音波加振によって溶着されることによって、ハウジングとケーブルとの間の気密を保持する製造方法が知られている（例えば、特許文献１参照）。   As a method of manufacturing a wire harness comprising a cable, a resin housing having an insertion hole into which an end of the cable is inserted, and a terminal accommodated in the housing, a welding member made of resin is a main body of the housing. A manufacturing method is known in which the airtightness between the housing and the cable is maintained by being welded to the portion by ultrasonic vibration (see, for example, Patent Document 1).

特許文献１に記載のワイヤハーネスの製造方法では、超音波振動するホーンにより、ケーブルの外周を囲むように形成された溶着部材が加振される。ハウジングの本体部には、ケーブル挿入孔側に溶着部材を嵌合するための凹部が形成され、超音波溶着時に溶着部材が凹部に嵌合される。この凹部の底壁に溶着部材の先端部に形成された凸部を加振させながら押圧することで、凹部の底壁に接触する凸部が溶融し、この溶融した溶融樹脂がハウジングの本体部及び溶着部材におけるケーブル挿入孔の内面とケーブルの外周面との間の隙間に流れ込む。そして、溶融樹脂が温度低下によって固化することにより、ハウジングとケーブルとが相互に固定されると共に、ケーブル挿入孔の内面とケーブルの外周面との間の隙間が気密に封止される。   In the method for manufacturing a wire harness described in Patent Document 1, a welding member formed so as to surround the outer periphery of a cable is vibrated by a horn that vibrates ultrasonically. A concave portion for fitting the welding member to the cable insertion hole side is formed in the main body portion of the housing, and the welding member is fitted into the concave portion during ultrasonic welding. By pressing the convex portion formed at the tip of the welding member on the bottom wall of the concave portion while vibrating, the convex portion that contacts the bottom wall of the concave portion is melted, and the molten resin is melted into the main body portion of the housing. And it flows into the clearance gap between the inner surface of the cable insertion hole in a welding member, and the outer peripheral surface of a cable. When the molten resin is solidified due to the temperature drop, the housing and the cable are fixed to each other, and the gap between the inner surface of the cable insertion hole and the outer peripheral surface of the cable is hermetically sealed.

特開２０１１−１００５８２号公報JP 2011-100582 A

ところで、ハウジングとケーブルとの間の気密を十分に確保するためには、溶融した樹脂をハウジングとケーブルとの間の隙間にできるだけ多く流し込むことが望ましい。しかし、特許文献１に記載のワイヤハーネスの製造方法では、溶融した樹脂がハウジングの本体部と溶着部材との間にも流れ込み、その分、ケーブル挿入孔の内面とケーブルの外周面との間に流れ込む樹脂が減少してしまう。すなわち、特許文献１に記載の製造方法では、溶融した樹脂をケーブル側に導く構成が設けられておらず、この点においてなお改善の余地があった。   By the way, in order to ensure sufficient airtightness between the housing and the cable, it is desirable to flow as much molten resin as possible into the gap between the housing and the cable. However, in the method of manufacturing the wire harness described in Patent Document 1, the molten resin also flows between the main body portion of the housing and the welding member, and accordingly, between the inner surface of the cable insertion hole and the outer peripheral surface of the cable. The amount of resin flowing will be reduced. That is, in the manufacturing method described in Patent Document 1, there is no configuration for guiding the molten resin to the cable side, and there is still room for improvement in this respect.

そこで、本発明の目的は、超音波加振工程において溶融した樹脂を電線の外周面と電線を挿通させる挿通孔の内周面との間に導くことが可能なワイヤハーネスの製造方法を提供することにある。   Then, the objective of this invention provides the manufacturing method of the wire harness which can guide | move the resin fuse | melted in the ultrasonic vibration process between the outer peripheral surface of an electric wire, and the inner peripheral surface of the penetration hole which penetrates an electric wire. There is.

本発明は、上記課題を解決することを目的として、電線及び前記電線の端部を収容する樹脂からなるハウジングを備えたワイヤハーネスの製造方法であって、前記ハウジングを構成する第１部材と第２部材とを前記電線の軸方向に沿って向かい合わせて配置する配置工程と、前記第１部材と前記第２部材とを超音波ホーンによって押し付けながら加振する超音波加振工程とを有し、前記第１部材には、前記電線を挿通させる挿通孔が形成されると共に、前記挿通孔の開口を囲むように形成された複数の環状突起を有し、前記第２部材には、前記配置工程で前記第１部材の前記複数の環状突起のうち少なくとも１つの環状突起に接触する接触面が形成され、前記超音波加振工程は、前記複数の環状突起のうち最も外側に形成された環状突起を除く他の環状突起が溶融した溶融樹脂の外方への流動をその外側の環状突起によって抑制し、前記溶融樹脂を前記挿通孔の内周面と前記電線の外周面との間に流入させる工程である、ワイヤハーネスの製造方法を提供する。   In order to solve the above-mentioned problems, the present invention provides a method for manufacturing a wire harness including a housing made of a resin that accommodates an electric wire and an end portion of the electric wire, and includes a first member constituting the housing and a first member. An arrangement step of arranging two members facing each other along the axial direction of the electric wire, and an ultrasonic vibration step of vibrating the first member and the second member while pressing them with an ultrasonic horn The first member has an insertion hole through which the electric wire is inserted, and has a plurality of annular protrusions formed so as to surround the opening of the insertion hole, and the second member has the arrangement In the process, a contact surface that contacts at least one of the plurality of annular protrusions of the first member is formed, and the ultrasonic vibration step includes an annular outermost formed of the plurality of annular protrusions. Remove protrusion In the step of suppressing the outward flow of the molten resin in which the other annular protrusions are melted by the outer annular protrusions, and allowing the molten resin to flow between the inner peripheral surface of the insertion hole and the outer peripheral surface of the electric wire. A method for manufacturing a wire harness is provided.

本発明に係るワイヤハーネスの製造方法によれば、超音波加振工程において溶融した樹脂を電線の外周面と電線を挿通させる挿通孔の内周面との間に導くことが可能となる。   According to the method for manufacturing a wire harness according to the present invention, the resin melted in the ultrasonic vibration process can be guided between the outer peripheral surface of the electric wire and the inner peripheral surface of the insertion hole through which the electric wire is inserted.

第１の実施の形態に係るワイヤハーネス、及びこのワイヤハーネスに接続される他のワイヤハーネスを示し、（ａ）は両ワイヤハーネス接続前の状態を示す側面図、（ｂ）は両ワイヤハーネスを接続した状態を示す斜視図である。The wire harness which concerns on 1st Embodiment, and the other wire harness connected to this wire harness are shown, (a) is a side view which shows the state before both wire harness connection, (b) shows both wire harnesses It is a perspective view which shows the state connected. ワイヤハーネスの複数の電線に沿った雌コネクタ及び電線の断面図である。It is sectional drawing of the female connector and electric wire along the some electric wire of a wire harness. 雌側ハウジングの本体部材を示し、（ａ）は斜視図、（ｂ）は（ａ）のＡ−Ａ断面斜視図である。The main body member of a female side housing is shown, (a) is a perspective view, (b) is an AA cross-sectional perspective view of (a). 溶着部材を示し、（ａ）は斜視図、（ｂ）は（ａ）のＢ−Ｂ断面図、（ｃ）は上面図である。A welding member is shown, (a) is a perspective view, (b) is a BB sectional view of (a), and (c) is a top view. （ａ）及び（ｂ）は、ワイヤハーネスの製造工程を示す模式図である。（ｃ）は、ワイヤハーネスの製造工程に用いる支持台を示す模式図である。(A) And (b) is a schematic diagram which shows the manufacturing process of a wire harness. (C) is a schematic diagram which shows the support stand used for the manufacturing process of a wire harness. 超音波加振工程における本体部材及び溶着部材の状態を段階的に示す模式図であり、（ａ）は超音波加振前の状態を、（ｂ）は超音波加振工程の初期状態を、（ｃ）は超音波加振工程の中期状態を、（ｄ）は超音波加振工程が完了した状態を、それぞれ示す。It is a schematic diagram which shows the state of the main body member and the welding member in an ultrasonic vibration process in steps, (a) is the state before ultrasonic vibration, (b) is the initial state of an ultrasonic vibration process, (C) shows an intermediate state of the ultrasonic vibration process, and (d) shows a state where the ultrasonic vibration process is completed. 第２の実施の形態に係る溶着部材を示し、（ａ）は斜視図、（ｂ）は（ａ）のＢ−Ｂ断面図、（ｃ）は上面図である。The welding member which concerns on 2nd Embodiment is shown, (a) is a perspective view, (b) is BB sectional drawing of (a), (c) is a top view. 第２の実施の形態に係る超音波加振工程における本体部材及び溶着部材の状態を段階的に示す模式図であり、（ａ）は超音波加振前の状態を、（ｂ）は超音波加振工程の初期状態を、（ｃ）は超音波加振工程の中期状態を、（ｄ）は超音波加振工程が完了した状態を、それぞれ示す。It is the model which shows the state of the main body member and the welding member in the ultrasonic vibration process which concerns on 2nd Embodiment in steps, (a) is the state before ultrasonic vibration, (b) is ultrasonic. The initial state of the vibration process, (c) shows the middle state of the ultrasonic vibration process, and (d) shows the state where the ultrasonic vibration process is completed.

［第１の実施の形態］
図１は、本発明の第１の実施の形態に係る製造方法によって製造されたワイヤハーネス１００、及びこのワイヤハーネス１００の雌コネクタ１に接続される他のワイヤハーネス９００の雄コネクタ９を示し、（ａ）はワイヤハーネス１００の雌コネクタ１と雄コネクタ９の嵌合前の状態を示す側面図、（ｂ）は雌コネクタ１と雄コネクタ９とが嵌合された状態を示す斜視図である。図２は、ワイヤハーネス１００の複数の電線１１に沿った雌コネクタ１及び電線１１の断面図である。 [First Embodiment]
FIG. 1 shows a wire harness 100 manufactured by the manufacturing method according to the first embodiment of the present invention, and a male connector 9 of another wire harness 900 connected to the female connector 1 of the wire harness 100. (A) is a side view showing a state before the female connector 1 and the male connector 9 of the wire harness 100 are fitted together, and (b) is a perspective view showing a state where the female connector 1 and the male connector 9 are fitted together. . FIG. 2 is a cross-sectional view of the female connector 1 and the electric wires 11 along the plurality of electric wires 11 of the wire harness 100.

このワイヤハーネス１００は、例えば車両の走行用の駆動力を発生する駆動源としての電動モータに、駆動電流としての三相交流電流を供給するために用いられる。この場合、ワイヤハーネス１００は電動モータとインバータとの間を電気的に接続する。図１及び図２では、ワイヤハーネス１００の一方の端部を示している。   This wire harness 100 is used, for example, to supply a three-phase alternating current as a drive current to an electric motor as a drive source that generates a driving force for running the vehicle. In this case, the wire harness 100 electrically connects the electric motor and the inverter. In FIG.1 and FIG.2, one edge part of the wire harness 100 is shown.

（ワイヤハーネス１００の構成）
ワイヤハーネス１００は、複数（本実施の形態では３本）の電線１１と、複数の電線１１のそれぞれの端部に接続された複数の端子１２（図２に示す）と、複数の端子１２を収容する樹脂からなる雌側ハウジング１０を有する雌コネクタ１とを備えている。雌側ハウジング１０は、樹脂からなる第２部材としての本体部材２と、同じく樹脂からなる第１部材としての溶着部材３とを一体化して構成されている。 (Configuration of wire harness 100)
The wire harness 100 includes a plurality (three in the present embodiment) of electric wires 11, a plurality of terminals 12 (shown in FIG. 2) connected to respective end portions of the plurality of electric wires 11, and a plurality of terminals 12. And a female connector 1 having a female housing 10 made of a resin to be accommodated. The female-side housing 10 is configured by integrating a main body member 2 as a second member made of resin and a welding member 3 as a first member also made of resin.

本実施の形態では、本体部材２及び溶着部材３が同一の樹脂材料からなる。この樹脂材料としては、例えばＰＢＴ（ポリブチレンテレフタレート）、ＰＰＳ（ポリフェニレンスルファイド）、ＰＡ（ポリアミド）等を用いることができる。   In the present embodiment, the main body member 2 and the welding member 3 are made of the same resin material. As this resin material, for example, PBT (polybutylene terephthalate), PPS (polyphenylene sulfide), PA (polyamide) or the like can be used.

ワイヤハーネス９００の雄コネクタ９は、雌側ハウジング１０に嵌合される雄側ハウジング９０を有し、この雄側ハウジング９０に複数（本実施の形態では３本）の電線９１の一端が収容されている。雄側ハウジング９０は、例えばインバータやモータ等の機器のケース（図示せず）に雄側ハウジング９０を固定するためのフランジ部９０１と、フランジ部９０１に対して直交する方向に突出する筒部９０２と、筒部９０２の内外を連通させる貫通孔が形成された円筒部９０３と、筒部９０２の外方に突出する係合突起９０４と、フランジ部９０１の他側（筒部９０２の反対側）に突出して形成され、電線９１が導出される導出部９０５とを有している。   The male connector 9 of the wire harness 900 has a male housing 90 fitted to the female housing 10, and one end of a plurality (three in this embodiment) of electric wires 91 is accommodated in the male housing 90. ing. The male housing 90 includes, for example, a flange portion 901 for fixing the male housing 90 to a case (not shown) of a device such as an inverter or a motor, and a cylindrical portion 902 protruding in a direction orthogonal to the flange portion 901. A cylindrical portion 903 formed with a through-hole that communicates the inside and outside of the cylindrical portion 902, an engaging projection 904 that protrudes outward from the cylindrical portion 902, and the other side of the flange portion 901 (the opposite side of the cylindrical portion 902) And a lead-out portion 905 from which the electric wire 91 is led out.

筒部９０２には、複数の電線９１のそれぞれの端部に接続された複数の端子（図示せず）が収容されている。この端子は、雌コネクタ１と雄コネクタ９とが嵌合されたとき、雌コネクタ１の端子１２に電気的に接続される。雄コネクタ９の端子と雌コネクタ１の端子１２とは、円筒部９０３の内面に螺合した押付部材９０６（図１（ｂ）に示す）によって、図略の絶縁部材を介して押し付けられる。   A plurality of terminals (not shown) connected to the respective ends of the plurality of electric wires 91 are accommodated in the cylindrical portion 902. This terminal is electrically connected to the terminal 12 of the female connector 1 when the female connector 1 and the male connector 9 are fitted. The terminals of the male connector 9 and the terminals 12 of the female connector 1 are pressed through an insulating member (not shown) by a pressing member 906 (shown in FIG. 1B) screwed into the inner surface of the cylindrical portion 903.

図２に示すように、本体部材２は、複数の端子１２を雌側ハウジング１０の外部に臨ませる開口２１０を有する筒状部２１と、筒状部２１に連続して、複数の電線１１の配列方向（図２の上下方向）における幅が筒状部２１よりも小さく形成された小筒部２２と、小筒部２２の内部にて複数の電線１１の一端部を保持する電線保持部２３とを一体に有している。   As shown in FIG. 2, the main body member 2 includes a cylindrical portion 21 having openings 210 that allow the plurality of terminals 12 to face the outside of the female housing 10, and the cylindrical portion 21. A small tube portion 22 having a width in the arrangement direction (vertical direction in FIG. 2) smaller than that of the tubular portion 21, and an electric wire holding portion 23 that holds one end portion of the plurality of electric wires 11 inside the small tube portion 22. Are integrated.

小筒部２２と電線保持部２３との間には、雄側ハウジング９０の筒部９０２（図１（ａ）に示す）を収容する環状の空間が形成されている。小筒部２２と電線保持部２３とは、後述するリブ２４によって連結されている。また、電線保持部２３の外周には、雄側ハウジング９０の筒部９０２の内面との間をシールする環状のシール部材４１が配置されている。   Between the small cylinder part 22 and the electric wire holding | maintenance part 23, the cyclic | annular space which accommodates the cylinder part 902 (it shows to Fig.1 (a)) of the male side housing 90 is formed. The small tube portion 22 and the electric wire holding portion 23 are connected by a rib 24 described later. In addition, an annular seal member 41 that seals between the outer surface of the wire holding portion 23 and the inner surface of the cylindrical portion 902 of the male housing 90 is disposed.

筒状部２１には、押付部材９０６を雌側ハウジング１０の外部から回転操作可能とする丸孔２１１が形成されている。また、筒状部２１には、雄側ハウジング９０の係合突起９０４に係合して雄側ハウジング９０の雌側ハウジング１０からの不用意な離脱を抑止する係合部２１２が形成されている。   The cylindrical portion 21 is formed with a round hole 211 that allows the pressing member 906 to be rotated from the outside of the female housing 10. Further, the tubular portion 21 is formed with an engaging portion 212 that engages with the engaging protrusion 904 of the male housing 90 to prevent inadvertent detachment of the male housing 90 from the female housing 10. .

電線１１は、中心導体１１０と、中心導体１１０を被覆する絶縁体からなるシース１１１とを有している。端子１２は、加締め部１２０と、雄コネクタ９の端子に面接触する板状の接続部１２１とを一体に有している。電線１１の先端部では、シース１１１が除去されて中心導体１１０が露出し、この露出した中心導体１１０に加締め部１２０が加締められている。   The electric wire 11 includes a center conductor 110 and a sheath 111 made of an insulator that covers the center conductor 110. The terminal 12 integrally includes a caulking portion 120 and a plate-like connection portion 121 that is in surface contact with the terminal of the male connector 9. At the distal end portion of the electric wire 11, the sheath 111 is removed to expose the central conductor 110, and the crimped portion 120 is crimped to the exposed central conductor 110.

複数の電線１１の軸方向における電線保持部２３の一端部には、複数（３つ）の端子１２の接続部１２１を挿通させて各端子１２を支持する端子支持部材４０が固定されている。端子支持部材４０は、図略の係止機構によって電線保持部２３に固定されている。   A terminal support member 40 that supports the terminals 12 by inserting the connection portions 121 of the plurality of (three) terminals 12 is fixed to one end of the wire holding portion 23 in the axial direction of the plurality of wires 11. The terminal support member 40 is fixed to the electric wire holding part 23 by an unillustrated locking mechanism.

また、複数の電線１１の軸方向における電線保持部２３の他端部には、溶着部材３が溶着によって一体化されている。複数の電線１１は、この溶着部材３を介して雌側ハウジング１０の外部に導出されている。   Moreover, the welding member 3 is integrated with the other end part of the electric wire holding | maintenance part 23 in the axial direction of the some electric wire 11 by welding. The plurality of electric wires 11 are led out of the female housing 10 via the welding member 3.

（本体部材２の構成）
図３は、雌側ハウジング１０の本体部材２を示し、（ａ）は斜視図、（ｂ）は（ａ）のＡ−Ａ断面斜視図である。 (Configuration of body member 2)
3A and 3B show the main body member 2 of the female-side housing 10, in which FIG. 3A is a perspective view and FIG. 3B is a cross-sectional perspective view taken along line AA of FIG.

図３（ａ）に示すように、本体部材２の電線保持部２３及び小筒部２２は、電線保持部２３の外面と小筒部２２の内面との間に放射状に形成された複数のリブ２４（図３では１つのみ示す）によって連結されている。電線保持部２３には、３本の電線１１を挿通させる３つの挿通孔２３０が形成されている。挿通孔２３０は、後述する溶着部材３の筒部３１を収容する収容孔としての機能も有する。本実施の形態では、挿通孔２３０が円筒状に形成されている。   As shown in FIG. 3A, the electric wire holding portion 23 and the small tube portion 22 of the main body member 2 are a plurality of ribs formed radially between the outer surface of the electric wire holding portion 23 and the inner surface of the small tube portion 22. 24 (only one is shown in FIG. 3). In the electric wire holding portion 23, three insertion holes 230 through which the three electric wires 11 are inserted are formed. The insertion hole 230 also has a function as an accommodation hole for accommodating a cylindrical portion 31 of the welding member 3 described later. In the present embodiment, the insertion hole 230 is formed in a cylindrical shape.

図３（ｂ）に示すように、挿通孔２３０は、電線１１の一端及び端子１２の加締め部１２０を収容する収容空間２３１と本体部材２の外部とを連通している。挿通孔２３０の内面は、電線１１の外径よりも僅かに大きな内径を有する小円筒面２３０ｃと、小円筒面２３０ｃの内径よりも大きな内径を有する大円筒面２３０ａと、大円筒面２３０ａ及び小円筒面２３０ｃの間に形成され、挿通孔２３０の中心軸線に対して直交する平坦面からなる環状の段差面２３０ｂとを含んでいる。この段差面２３０ｂは、後述する溶着部材３の複数の環状突起３１１〜３１３が接触する接触面である。小円筒面２３０ｃは段差面２３０ｂの収容空間２３１側に、大円筒面２３０ａはその反対側（本体部材２の外部側）に、それぞれ形成されている。   As shown in FIG. 3B, the insertion hole 230 communicates the housing space 231 that houses one end of the electric wire 11 and the crimped portion 120 of the terminal 12 and the outside of the main body member 2. The inner surface of the insertion hole 230 has a small cylindrical surface 230c having an inner diameter slightly larger than the outer diameter of the electric wire 11, a large cylindrical surface 230a having an inner diameter larger than the inner diameter of the small cylindrical surface 230c, a large cylindrical surface 230a and a small cylindrical surface. It includes an annular step surface 230b formed between the cylindrical surfaces 230c and formed of a flat surface orthogonal to the central axis of the insertion hole 230. The step surface 230b is a contact surface with which a plurality of annular protrusions 311 to 313 of the welding member 3 described later contact. The small cylindrical surface 230c is formed on the accommodation space 231 side of the step surface 230b, and the large cylindrical surface 230a is formed on the opposite side (outside of the main body member 2).

図４は、溶着部材３を示し、（ａ）は斜視図、（ｂ）は（ａ）のＢ−Ｂ断面図、（ｃ）は上面図である。   4A and 4B show the welding member 3, in which FIG. 4A is a perspective view, FIG. 4B is a cross-sectional view taken along line BB in FIG. 4A, and FIG.

（溶着部材３の構成）
溶着部材３は、周縁がトラック形状の基部３０と、複数（本実施の形態では３つ）の筒部３１とを一体に有している。また、溶着部材３には、電線１１を挿通させる３つの挿通孔３１０が設けられている。挿通孔３１０は、筒部３１をその中心軸線に沿って貫通すると共に、基部３０を厚さ方向に貫通している。基部３０は、筒部３１の基端部において筒部３１と一体に、筒部３１の外周側に張り出して形成されている。 (Configuration of welding member 3)
The welding member 3 integrally has a base portion 30 having a track periphery and a plurality (three in this embodiment) of cylindrical portions 31. The welding member 3 is provided with three insertion holes 310 through which the electric wires 11 are inserted. The insertion hole 310 penetrates the cylindrical portion 31 along its central axis and penetrates the base portion 30 in the thickness direction. The base 30 is formed so as to protrude from the outer peripheral side of the cylindrical portion 31 integrally with the cylindrical portion 31 at the proximal end portion of the cylindrical portion 31.

３つの筒部３１は、基部３０の上面３０ａから、上面３０ａに対して直交する方向に延びるように形成されている。すなわち、３つの筒部３１は、それぞれの中心軸線ｃが互いに平行である。また、溶着部材３は、それぞれの筒部３１の先端部に、挿通孔３１０の開口３１０ａを囲むように形成された第１乃至第３の環状突起３１１〜３１３を有している。第１乃至第３の環状突起３１１〜３１３は同心円状に並設され、第１の環状突起３１１は最も内側に、第３の環状突起３１３は最も外側に形成されている。第２の環状突起３１２は、第１の環状突起３１１と第３の環状突起３１３の間に形成されている。   The three cylindrical portions 31 are formed to extend from the upper surface 30a of the base portion 30 in a direction orthogonal to the upper surface 30a. That is, the central axis c of the three cylindrical portions 31 is parallel to each other. In addition, the welding member 3 has first to third annular protrusions 311 to 313 formed at the distal end portion of each cylindrical portion 31 so as to surround the opening 310 a of the insertion hole 310. The first to third annular protrusions 311 to 313 are arranged concentrically in parallel, with the first annular protrusion 311 being formed on the innermost side and the third annular protrusion 313 being formed on the outermost side. The second annular protrusion 312 is formed between the first annular protrusion 311 and the third annular protrusion 313.

第１乃至第３の環状突起３１１〜３１３は、挿通孔３１０の開口３１０ａ（第１の環状突起３１１の根元部）から、挿通孔３１０の中心軸線に沿って先細り形状に突出している。本実施の形態では、図４（ｂ）に示すように、第１乃至第３の環状突起３１１〜３１３のそれぞれの断面が二等辺三角形状である。第１の環状突起３１１と第２の環状突起３１２との間には、挿通孔３１０の周方向に沿って環状の第１の溝部３１１ａが形成されている。また、第２の環状突起３１２と第３の環状突起３１３との間には、挿通孔３１０の周方向に沿って環状の第２の溝部３１２ａが形成されている。   The first to third annular protrusions 311 to 313 protrude from the opening 310 a of the insertion hole 310 (the root portion of the first annular protrusion 311) in a tapered shape along the central axis of the insertion hole 310. In this Embodiment, as shown in FIG.4 (b), each cross section of the 1st thru | or 3rd cyclic | annular protrusion 311-313 is an isosceles triangle shape. An annular first groove 311 a is formed between the first annular protrusion 311 and the second annular protrusion 312 along the circumferential direction of the insertion hole 310. An annular second groove 312 a is formed between the second annular projection 312 and the third annular projection 313 along the circumferential direction of the insertion hole 310.

第１の環状突起３１１の高さ（挿通孔３１０の開口３１０ａからの挿通孔３１０の中心軸方向の高さ）は、第２の環状突起３１２の高さよりも高く形成されている。第２の環状突起３１２の高さは、第３の環状突起３１３の高さよりも高く形成されている。すなわち、第１乃至第３の環状突起３１１〜３１３は、最も内側に形成された第１の環状突起３１１の高さが他の環状突起（第２及び第３の環状突起３１２，３１３）の高さよりも高く、外側の環状突起ほど高さが低くなるように形成されている。   The height of the first annular protrusion 311 (the height in the central axis direction of the insertion hole 310 from the opening 310 a of the insertion hole 310) is formed higher than the height of the second annular protrusion 312. The height of the second annular protrusion 312 is formed higher than the height of the third annular protrusion 313. That is, in the first to third annular protrusions 311 to 313, the height of the first annular protrusion 311 formed on the innermost side is the height of the other annular protrusions (second and third annular protrusions 312 and 313). It is formed so that the height of the outer annular protrusion is lower than the height.

（ワイヤハーネス１００の製造方法）
次に、ワイヤハーネス１００の製造方法について説明する。 (Method for manufacturing wire harness 100)
Next, a method for manufacturing the wire harness 100 will be described.

図５は、（ａ）及び（ｂ）は、ワイヤハーネス１００の製造工程を示す模式図である。（ｃ）は、ワイヤハーネス１００の製造工程に用いる支持台８０を示す模式図である。なお、（ｃ）は支持台８０を表（おもて）面８０ａ側から見た状態を示す。   FIGS. 5A and 5B are schematic views showing a manufacturing process of the wire harness 100. FIG. (C) is a schematic diagram showing a support base 80 used in the manufacturing process of the wire harness 100. In addition, (c) shows the state which looked at the support stand 80 from the front (front) surface 80a side.

ワイヤハーネス１００の製造工程は、本体部材２と溶着部材３とを電線１１の軸方向に沿って向い合わせて配置する配置工程と、本体部材２と溶着部材３とを超音波ホーン８１によって押し付けながら加振する超音波加振工程とを有している。以下、この各工程について、より詳細に説明する。   The manufacturing process of the wire harness 100 includes an arrangement step of arranging the main body member 2 and the welding member 3 so as to face each other along the axial direction of the electric wire 11, and pressing the main body member 2 and the welding member 3 with the ultrasonic horn 81. And an ultrasonic vibration step for exciting. Hereinafter, each step will be described in more detail.

（配置工程）
配置工程では、３本の電線１１を予め溶着部材３の挿通孔３１０に挿入し、かつ本体部材２の挿通孔２３０を挿通させ、その一端部に端子１２を接続する。次に、端子１２を電線保持部２３の一端部に固定された端子支持部材４０によって本体部材２内に支持する。次に、３本の電線１１を支持台８０に設けられたスリット部８０１（図５（ｃ）に示す）内に導入し、溶着部材３を基部３０が下側（支持台８０の表面８０ａ側）となるように支持台８０上に配置する。これにより、基部３０における上面３０ａの反対側の底面３０ｂが支持台８０の表面８０ａに接触する。 (Arrangement process)
In the arranging step, the three electric wires 11 are inserted into the insertion hole 310 of the welding member 3 in advance and the insertion hole 230 of the main body member 2 is inserted, and the terminal 12 is connected to one end thereof. Next, the terminal 12 is supported in the main body member 2 by a terminal support member 40 fixed to one end of the electric wire holding portion 23. Next, the three electric wires 11 are introduced into a slit portion 801 (shown in FIG. 5C) provided on the support base 80, and the welding member 3 is placed on the lower side (on the surface 80 a side of the support base 80 ) Is arranged on the support base 80. As a result, the bottom surface 30 b of the base 30 opposite to the upper surface 30 a comes into contact with the surface 80 a of the support base 80.

次に、図５（ａ）に示すように、本体部材２と溶着部材３とを電線１１の軸方向に沿って向い合わせ、本体部材２を図中の矢印のように溶着部材３に向けて移動させる。これにより、溶着部材３の筒部３１が本体部材２の挿通孔２３０に挿入され、第１の環状突起３１１が挿通孔２３０における段差面２３０ｂに接触する。   Next, as shown in FIG. 5A, the main body member 2 and the welding member 3 face each other along the axial direction of the electric wire 11, and the main body member 2 faces the welding member 3 as indicated by an arrow in the figure. Move. Thereby, the cylindrical portion 31 of the welding member 3 is inserted into the insertion hole 230 of the main body member 2, and the first annular protrusion 311 comes into contact with the step surface 230 b in the insertion hole 230.

（超音波加振工程）
超音波加振工程では、超音波ホーン８１を本体部材２に向かって移動させ、超音波ホーン８１の端面８１ａを本体部材２の開口側端面２１ａに接触させる。超音波ホーン８１は、図略の超音波振動子に機械的に接続され、超音波振動子の振動（超音波振動）を本体部材２に伝達する。超音波振動する超音波ホーン８１の端面８１ａが開口側端面２１ａに接触すると、本体部材２が加振される。超音波ホーン８１は、振動しながら本体部材２を支持台８０に向かって押圧する。 (Ultrasonic vibration process)
In the ultrasonic vibration process, the ultrasonic horn 81 is moved toward the main body member 2, and the end surface 81 a of the ultrasonic horn 81 is brought into contact with the opening-side end surface 21 a of the main body member 2. The ultrasonic horn 81 is mechanically connected to an ultrasonic vibrator (not shown), and transmits the vibration (ultrasonic vibration) of the ultrasonic vibrator to the main body member 2. When the end surface 81a of the ultrasonic horn 81 that vibrates ultrasonically contacts the opening-side end surface 21a, the main body member 2 is vibrated. The ultrasonic horn 81 presses the main body member 2 toward the support base 80 while vibrating.

図６は、超音波加振工程における本体部材２及び溶着部材３の状態を段階的に示す模式図であり、（ａ）は超音波加振前の状態を、（ｂ）は超音波加振工程の初期状態を、（ｃ）は超音波加振工程の中期状態を、（ｄ）は超音波加振工程が完了した状態を、それぞれ示す。   FIG. 6 is a schematic diagram showing the state of the main body member 2 and the welding member 3 in a stepwise manner in the ultrasonic vibration step, where (a) shows a state before ultrasonic vibration and (b) shows ultrasonic vibration. (C) shows an intermediate state of the ultrasonic vibration process, and (d) shows a state where the ultrasonic vibration process is completed.

図６（ａ）に示す超音波加振前の状態（配置工程完了時の状態）では、第１の環状突起３１１が挿通孔２３０における段差面２３０ｂに接触し、第２の環状突起３１２及び第３の環状突起３１３は段差面２３０ｂから離間している。また、挿通孔３１０の内周面３１ａ及び小円筒面２３０ｃと電線１１の外周面１１ａとの間には環状の隙間Ｓ１が形成され、筒部３１の外周面３１ｂと本体部材２の大円筒面２３０ａとの間には環状の隙間Ｓ２が形成されている。 In the state before the ultrasonic vibration shown in FIG. 6A (the state when the arrangement process is completed), the first annular protrusion 311 contacts the step surface 230b in the insertion hole 230, and the second annular protrusion 312 and the second annular protrusion 312 The three annular protrusions 313 are separated from the step surface 230b. An annular gap S 1 is formed between the inner peripheral surface 31 a and the small cylindrical surface 230 c of the insertion hole 310 and the outer peripheral surface 11 a of the electric wire 11, and the outer peripheral surface 31 b of the cylindrical portion 31 and the large cylinder of the main body member 2. annular gap S 2 is formed between the surface 230a.

図６（ｂ）に示す超音波加振工程の初期状態では、第１の環状突起３１１の先端部が段差面２３０ｂとの接触によって超音波振動して加熱され、溶融する。この溶融によって発生した溶融樹脂３ａは、内方（隙間Ｓ１側）及び外方（第１の溝部３１１ａ側）に流動する。このうち、第１の溝部３１１ａに流動した溶融樹脂３ａのさらなる外方への流動は、第２の環状突起３１２によって抑制される。 In the initial state of the ultrasonic vibration process shown in FIG. 6B, the tip of the first annular protrusion 311 is heated by ultrasonic vibration by contact with the step surface 230b and melts. Molten resin 3a generated by this melting, flows inwardly (clearance S 1 side) and outwardly (first groove 311a side). Among these, the further outward flow of the molten resin 3 a that has flowed into the first groove 311 a is suppressed by the second annular protrusion 312.

図６（ｃ）に示す超音波加振工程の中期状態では、第１の環状突起３１１に加えて第２の環状突起３１２の先端部が段差面２３０ｂに接触し、超音波加振されることによって溶融する。第１の環状突起３１１及び第２の環状突起３１２が溶融した溶融樹脂３ａは、隙間Ｓ１、第１の溝部３１１ａ、及び第２の溝部３１２ａに流れ込む。ここで、第１の環状突起３１１が溶融した溶融樹脂３ａは、外方への流動が第２の環状突起３１２によって抑制されているので、主として隙間Ｓ１に流動する。また、第２の環状突起３１２が溶融した溶融樹脂３ａは、第２の溝部３１２ａに流動するが、この溶融樹脂３ａのさらなる外方への流動は、第３の環状突起３１３によって抑制される。 In the middle state of the ultrasonic vibration process shown in FIG. 6C, the tip of the second annular protrusion 312 is in contact with the step surface 230b in addition to the first annular protrusion 311 and is subjected to ultrasonic vibration. Melt by. The molten resin 3a obtained by melting the first annular protrusion 311 and the second annular protrusion 312 flows into the gap S 1 , the first groove part 311a, and the second groove part 312a. Here, the molten resin 3a which the first annular protrusion 311 is melted, since the flow outward is suppressed by the second annular projection 312 mainly flows into the gap S 1. In addition, the molten resin 3a in which the second annular protrusion 312 is melted flows into the second groove 312a, but further outward flow of the molten resin 3a is suppressed by the third annular protrusion 313.

図６（ｄ）に示す超音波加振工程の完了状態では、第１乃至第３の環状突起３１１〜３１３が溶融した溶融樹脂３ａが、その粘性によって隙間Ｓ１、第１及び第２の溝部３１１ａ，３１２ａ、及び隙間Ｓ２に滞留する。この後、各部における溶融樹脂３ａは自然冷却によって温度が下がって固化し、挿通孔３１０の内周面３１ａ及び小円筒面２３０ｃと電線１１の外周面１１ａとの間が気密に封止されると共に、本体部材２と溶着部材３とが溶着により一体化される。これにより、図１及び図２に示すワイヤハーネス１００が得られる。 In the completed state of the ultrasonic vibration process shown in FIG. 6D, the melted resin 3a in which the first to third annular protrusions 311 to 313 are melted has a gap S 1 , first and second groove portions due to its viscosity. 311a, 312a, and stays in the gap S 2. Thereafter, the temperature of the molten resin 3a in each part is lowered and solidifies by natural cooling, and the space between the inner peripheral surface 31a and the small cylindrical surface 230c of the insertion hole 310 and the outer peripheral surface 11a of the electric wire 11 is hermetically sealed. The main body member 2 and the welding member 3 are integrated by welding. Thereby, the wire harness 100 shown in FIG.1 and FIG.2 is obtained.

（第１の実施の形態の作用及び効果）
以上説明した第１の実施の形態によれば、第１の環状突起３１１が溶融した溶融樹脂３ａの外方への流動が第２の環状突起３１２によって抑制され、また第２の環状突起３１２が溶融した溶融樹脂３ａの外方への流動が第３の環状突起３１３によって抑制される。これにより、隙間Ｓ２よりも多くの溶融樹脂３ａが隙間Ｓ１に流入し、挿通孔３１０の内周面３１ａ及び小円筒面２３０ｃと電線１１の外周面１１ａとの間が確実に封止される。 (Operation and effect of the first embodiment)
According to the first embodiment described above, the outward flow of the molten resin 3a in which the first annular protrusion 311 is melted is suppressed by the second annular protrusion 312 and the second annular protrusion 312 is The outward flow of the molten resin 3a is suppressed by the third annular protrusion 313. Thus, many of the molten resin 3a than the gap S 2 flows into the gap S 1, between the outer peripheral surface 11a of the inner peripheral surface 31a and the small cylindrical surface 230c and the electric wire 11 of the insertion hole 310 is reliably sealed The

［第２の実施の形態］
次に、本発明の第２の実施の形態について、図７及び図８を参照して説明する。これらの図において、第１の実施の形態について説明したものと共通する機能を有する構成要素については、同一の符号を付してその重複した説明を省略する。 [Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS. In these drawings, components having the same functions as those described in the first embodiment are denoted by the same reference numerals, and redundant description thereof is omitted.

図７は、第２の実施の形態に係る溶着部材３Ａを示し、（ａ）は斜視図、（ｂ）は（ａ）のＣ−Ｃ断面図、（ｃ）は上面図である。   7A and 7B show a welding member 3A according to the second embodiment, in which FIG. 7A is a perspective view, FIG. 7B is a cross-sectional view taken along the line CC in FIG. 7A, and FIG.

この溶着部材３Ａは、第１の実施の形態に係る溶着部材３の第１乃至第３の環状突起３１１〜３１３に替えて、第１乃至第４の環状突起３１４〜３１７を有している。第１乃至第４の環状突起３１４〜３１７は、挿通孔３１０の開口３１０ａを囲むように同心円状に形成されている。第１乃至第４の環状突起３１４〜３１７のうち、最も外側に形成された第４の環状突起３１７は、挿通孔３１０の中心軸線ｃに平行な方向の高さが第１乃至第３の環状突起３１４〜３１６よりも高く形成されている。本実施の形態では、第１乃至第３の環状突起３１４〜３１６の高さが均一に形成されている。   This welding member 3A has first to fourth annular protrusions 314 to 317 instead of the first to third annular protrusions 311 to 313 of the welding member 3 according to the first embodiment. The first to fourth annular protrusions 314 to 317 are formed concentrically so as to surround the opening 310 a of the insertion hole 310. Of the first to fourth annular protrusions 314 to 317, the fourth annular protrusion 317 formed on the outermost side has a height in the direction parallel to the central axis c of the insertion hole 310 having the first to third annular protrusions. It is formed higher than the protrusions 314 to 316. In the present embodiment, the first to third annular protrusions 314 to 316 are uniformly formed.

第１の環状突起３１４と第２の環状突起３１５との間には第１の溝部３１４ａが、第２の環状突起３１５と第３の環状突起３１６との間には第２の溝部３１５ａが、第３の環状突起３１６と第４の環状突起３１７との間には第３の溝部３１６ａが、それぞれ形成されている。本実施の形態では、図７（ｂ）に示すように、第１乃至第３の環状突起３１４〜３１６のそれぞれの断面が二等辺三角形状であり、第４の環状突起３１７の断面が長方形状である。   A first groove 314a is provided between the first annular protrusion 314 and the second annular protrusion 315, and a second groove 315a is provided between the second annular protrusion 315 and the third annular protrusion 316. A third groove 316a is formed between the third annular protrusion 316 and the fourth annular protrusion 317, respectively. In the present embodiment, as shown in FIG. 7B, each of the first to third annular protrusions 314 to 316 has an isosceles triangle shape, and the fourth annular protrusion 317 has a rectangular shape. It is.

図８は、第２の実施の形態に係る超音波加振工程における本体部材２及び溶着部材３Ａの状態を段階的に示す模式図であり、（ａ）は超音波加振前の状態を、（ｂ）は超音波加振工程の初期状態を、（ｃ）は超音波加振工程の中期状態を、（ｄ）は超音波加振工程が完了した状態を、それぞれ示す。   FIG. 8 is a schematic diagram showing stepwise the states of the main body member 2 and the welding member 3A in the ultrasonic vibration process according to the second embodiment, and (a) shows the state before ultrasonic vibration. (B) shows the initial state of the ultrasonic vibration process, (c) shows the intermediate state of the ultrasonic vibration process, and (d) shows the state where the ultrasonic vibration process is completed.

本実施の形態では、本体部材２の電線保持部２３に環状の凹部２３２が形成されている。この凹部２３２は、第１乃至第３の環状突起３１４〜３１６が接触する段差面２３０ｂの外周に、段差面２３０ｂに対して直交する方向に窪むように形成されている。   In the present embodiment, an annular recess 232 is formed in the wire holding portion 23 of the main body member 2. The recess 232 is formed on the outer periphery of the step surface 230b with which the first to third annular protrusions 314 to 316 come into contact so as to be recessed in a direction perpendicular to the step surface 230b.

図８（ａ）に示す超音波加振前の状態（配置工程完了時の状態）では、第１乃至第３の環状突起３１４〜３１６が段差面２３０ｂに接触し、第４の環状突起３１７は、その先端部が凹部２３２内に位置している。   In the state before the ultrasonic vibration shown in FIG. 8A (the state when the arrangement process is completed), the first to third annular protrusions 314 to 316 are in contact with the step surface 230b, and the fourth annular protrusion 317 is , Its tip is located in the recess 232.

図８（ｂ）に示す超音波加振工程の初期状態では、第１乃至第３の環状突起３１４〜３１６の先端部が段差面２３０ｂとの接触によって超音波振動して加熱され、溶融する。この溶融によって発生した溶融樹脂３ａは、隙間Ｓ１、及び第１乃至第３の溝部３１４ａ，３１５ａ，３１６ａに流動する。また、第４の環状突起３１７の先端部は凹部２３２の奥側に進入する。 In the initial state of the ultrasonic vibration process shown in FIG. 8B, the tip portions of the first to third annular protrusions 314 to 316 are heated by ultrasonic vibration by contact with the step surface 230b and melt. The molten resin 3a generated by the melting flows into the gap S 1 and the first to third grooves 314a, 315a, and 316a. Further, the tip of the fourth annular protrusion 317 enters the back side of the recess 232.

図８（ｃ）に示す超音波加振工程の中期状態では、第１乃至第３の環状突起３１４〜３１６が溶融した溶融樹脂３ａが隙間Ｓ１に流入すると共に、第３の溝部３１６ａから凹部２３２に流入する。ここで、第４の環状突起３１７の先端部は超音波加振工程の初期状態よりもさらに凹部２３２の奥側に進入しているので、溶融樹脂３ａの外方（隙間Ｓ２側）への流動は第４の環状突起３１７によって抑制される。 In the middle state of the ultrasonic vibration process shown in FIG. 8C, the molten resin 3a in which the first to third annular protrusions 314 to 316 are melted flows into the gap S1, and the third groove 316a is recessed. 232 flows into. Here, the distal end portion of the fourth annular projection 317 to because it further enters the inner side of the recess 232 than the initial state of the ultrasonic vibration step, the outside of the molten resin 3a (clearance S 2 side) The flow is suppressed by the fourth annular protrusion 317.

図８（ｄ）に示す超音波加振工程の完了状態では、第１乃至第３の環状突起３１４〜３１６が溶融した溶融樹脂３ａが、その粘性によって隙間Ｓ１、第１乃至第３の溝部３１４ａ，３１５ａ，３１６ａ、凹部２３２及び隙間Ｓ２に滞留する。この後、各部における溶融樹脂３ａは自然冷却によって温度が下がって固化し、挿通孔３１０の内周面３１ａ及び小円筒面２３０ｃと電線１１の外周面１１ａとの間が気密に封止されると共に、本体部材２と溶着部材３Ａとが溶着により一体化される。 In the completed state of the ultrasonic vibration process shown in FIG. 8D, the molten resin 3a in which the first to third annular protrusions 314 to 316 are melted is formed into the gap S 1 and the first to third grooves by its viscosity. 314a, stays 315a, 316a, the recess 232 and the clearance S 2. Thereafter, the temperature of the molten resin 3a in each part is lowered and solidifies by natural cooling, and the space between the inner peripheral surface 31a and the small cylindrical surface 230c of the insertion hole 310 and the outer peripheral surface 11a of the electric wire 11 is hermetically sealed. The main body member 2 and the welding member 3A are integrated by welding.

（第２の実施の形態の作用及び効果）
以上説明した第２の実施の形態によれば、第１乃至第３の環状突起３１４〜３１６が溶融した溶融樹脂３ａの外方への流動が第４の環状突起３１７によって抑制される。これにより、凹部２３２及び隙間Ｓ２よりも多くの溶融樹脂３ａが隙間Ｓ１に流入し、挿通孔３１０の内周面３１ａ及び小円筒面２３０ｃと電線１１の外周面１１ａとの間が確実に封止される。 (Operation and effect of the second embodiment)
According to the second embodiment described above, the outward flow of the molten resin 3 a in which the first to third annular protrusions 314 to 316 are melted is suppressed by the fourth annular protrusion 317. Thus, it recesses 232 and many of the molten resin 3a than the gap S 2 flows into the gap S 1, between the outer peripheral surface 11a of the inner peripheral surface 31a and the small cylindrical surface 230c and the electric wire 11 of the insertion hole 310 is reliably Sealed.

（実施の形態のまとめ）
次に、以上説明した実施の形態から把握される技術思想について、実施の形態における符号等を援用して記載する。ただし、以下の記載における各符号は、特許請求の範囲における構成要素を実施の形態に具体的に示した部材等に限定するものではない。 (Summary of embodiment)
Next, the technical idea grasped from the embodiment described above will be described with reference to the reference numerals in the embodiment. However, each reference numeral in the following description does not limit the constituent elements in the claims to members or the like specifically shown in the embodiment.

［１］電線（１１）及び電線（１１）の端部を収容する樹脂からなるハウジング（１０）を備えたワイヤハーネス（１００）の製造方法であって、ハウジング（１０）を構成する第１部材（３，３Ａ）と第２部材（２）とを電線（１１）の軸方向に沿って向かい合わせて配置する配置工程と、第１部材（３，３Ａ）と第２部材（２）とを超音波ホーン（８１）によって押し付けながら加振する超音波加振工程とを有し、第１部材（３，３Ａ）には、電線（１１）を挿通させる挿通孔（３１０）が形成されると共に、挿通孔（３１０）の開口（３１０ａ）を囲むように形成された複数の環状突起（３１１〜３１３，３１４〜３１７）を有し、第２部材（２）には、配置工程で第１部材（３，３Ａ）の複数の環状突起（３１１〜３１３，３１４〜３１７）のうち少なくとも１つの環状突起（３１１，３１４〜３１６）に接触する接触面（２３０ｂ）が形成され、超音波加振工程は、複数の環状突起（３１１〜３１３，３１４〜３１７）のうち最も外側に形成された環状突起（３１３，３１７）を除く他の環状突起（３１１〜３１２，３１４〜３１６）が溶融した溶融樹脂（３ａ）の外方への流動をその外側の環状突起によって抑制し、溶融樹脂（３ａ）を挿通孔（３１０）の内面（３１ａ）と電線（１１）の外周面（１１ａ）との間に流入させる工程である、ワイヤハーネス（１００）の製造方法。 [1] A method of manufacturing a wire harness (100) including a wire (11) and a housing (10) made of a resin that accommodates an end of the wire (11), and the first member constituting the housing (10) (3, 3A) and the second member (2) are arranged so as to face each other along the axial direction of the electric wire (11), and the first member (3, 3A) and the second member (2). An ultrasonic vibration step of vibrating while being pressed by the ultrasonic horn (81), and the first member (3, 3A) is formed with an insertion hole (310) through which the electric wire (11) is inserted. And a plurality of annular protrusions (311 to 313, 314 to 317) formed so as to surround the opening (310a) of the insertion hole (310), and the second member (2) has a first member in the arranging step. A plurality of annular projections (311 to 313, 314 to 17), a contact surface (230b) that contacts at least one of the annular protrusions (311, 314 to 316) is formed, and the ultrasonic vibration process includes a plurality of annular protrusions (311 to 313, 314 to 317). The outer annular protrusion suppresses the outward flow of the molten resin (3a) in which the other annular protrusions (311 to 312, 314 to 316) except for the outermost annular protrusion (313, 317) are melted. And the manufacturing method of the wire harness (100) which is the process of flowing molten resin (3a) between the inner surface (31a) of an insertion hole (310) and the outer peripheral surface (11a) of an electric wire (11).

［２］複数の環状突起（３１１〜３１３）は、最も内側に形成された環状突起（３１３）の挿通孔（３１０）の中心軸（Ｃ）方向の高さが他の環状突起（３１１，３１２）の同方向の高さよりも高い、［１］に記載のワイヤハーネス（１００）の製造方法。 [2] The plurality of annular protrusions (311 to 313) have other annular protrusions (311 and 312) having a height in the central axis (C) direction of the insertion hole (310) of the annular protrusion (313) formed on the innermost side. ) Of the wire harness (100) according to [1], which is higher than the height in the same direction.

［３］複数の環状突起（３１１〜３１３）は、少なくとも３つの環状突起からなり、外側の環状突起ほど挿通孔（３１０）の中心軸（Ｃ）方向の高さが低い、［１］又は［２］に記載のワイヤハーネス（１００）の製造方法。 [3] The plurality of annular protrusions (311 to 313) includes at least three annular protrusions, and the outer annular protrusion has a lower height in the central axis (C) direction of the insertion hole (310), [1] or [ 2] The manufacturing method of the wire harness (100) of description.

［４］複数の環状突起（３１４〜３１６）は、最も外側に形成された環状突起（３１７）の挿通孔（３１０）の中心軸（Ｃ）方向の高さが他の環状突起（３１３〜３１６）の同方向の高さよりも高く、第２部材（２）には、最も外側に形成された環状突起（３１７）を除く他の環状突起（３１４〜３１６）に接触する接触面（２３０ｂ）の外周に環状の凹部（２３２）が形成され、超音波加振工程における他の環状突起（３１４〜３１６）の溶融に伴って最も外側に形成された環状突起（３１７）の先端部が凹部（２３２）の奥側に進入する、［１］に記載のワイヤハーネス（１００）の製造方法。 [4] In the plurality of annular protrusions (314 to 316), the height of the annular protrusion (317) formed on the outermost side in the direction of the central axis (C) of the insertion hole (310) is other annular protrusions (313 to 316). ) Of the contact surface (230b) that contacts the other annular protrusions (314 to 316) except the annular protrusion (317) formed on the outermost side. An annular recess (232) is formed on the outer periphery, and the tip of the annular projection (317) formed on the outermost side as the other annular projections (314 to 316) melt in the ultrasonic vibration step is the recess (232). ) Of the wire harness (100) according to [1].

以上、本発明の実施の形態を説明したが、上記に記載した実施の形態は特許請求の範囲に係る発明を限定するものではない。また、実施の形態の中で説明した特徴の組合せの全てが発明の課題を解決するための手段に必須であるとは限らない点に留意すべきである。   While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

また、本発明は、その趣旨を逸脱しない範囲で適宜変更して実施することが可能である。例えば、環状突起の数は上記実施の形態に示したものに限らず、２つ又は４つ以上でもよい。また、ワイヤハーネス１００の電線１１の数も、３本に限らず、１本又は２本、あるいは４本以上であってもよい。ワイヤハーネス１００の用途についても特に制限はない。   In addition, the present invention can be implemented with appropriate modifications without departing from the spirit of the present invention. For example, the number of annular protrusions is not limited to that shown in the above embodiment, and may be two or four or more. Moreover, the number of the electric wires 11 of the wire harness 100 is not limited to three, and may be one, two, or four or more. There are no particular restrictions on the use of the wire harness 100.

１…雌コネクタ、２…本体部材（第２部材）、３，３Ａ…溶着部材（第１部材）、３ａ…溶融樹脂、９…雄コネクタ、１０…雌側ハウジング、１１…電線、１１ａ…外周面、１２…端子、２１…筒状部、２１ａ…開口側端面、２２…小筒部、２３…電線保持部、２４…リブ、３０…基部、３０ａ…上面、３０ｂ…底面、３１…筒部、３１ａ…内周面、３１ｂ…外周面、４０…端子支持部材、４１…シール部材、８０…支持台、８０ａ…表面、８１…超音波ホーン、８１ａ…端面、９０…雄側ハウジング、９１…電線、１００…ワイヤハーネス、１１０…中心導体、１１１…シース、１２０…加締め部、１２１…接続部、２１０…開口、２１１…丸孔、２１２…係合部、２３０…挿通孔、２３０ａ…大円筒面、２３０ｂ…段差面（接触面）、２３０ｃ…小円筒面、２３１…収容空間、２３２…凹部、３１０…挿通孔、３１０ａ…開口、３１１…第１の環状突起、３１１…第１の環状突起、３１１ａ…第１の溝部、３１２…第２の環状突起、３１２ａ…第２の溝部、３１３…第３の環状突起、３１４…第１の環状突起、３１４ａ…第１の溝部、３１５…第２の環状突起、３１５ａ…第２の溝部、３１６…第３の環状突起、３１６ａ…第３の溝部、３１７…第４の環状突起、８０１…スリット部、９００…ワイヤハーネス、９０１…フランジ部、９０２…筒部、９０３…円筒部、９０４…係合突起、９０５…導出部、９０６…押付部材、Ｃ…中心軸線、Ｓ１，Ｓ２…隙間
DESCRIPTION OF SYMBOLS 1 ... Female connector, 2 ... Main body member (2nd member), 3, 3A ... Welding member (1st member), 3a ... Molten resin, 9 ... Male connector, 10 ... Female side housing, 11 ... Electric wire, 11a ... Outer periphery Surface, 12 ... Terminal, 21 ... Cylindrical part, 21a ... Opening side end face, 22 ... Small cylinder part, 23 ... Electric wire holding part, 24 ... Rib, 30 ... Base part, 30a ... Upper surface, 30b ... Bottom surface, 31 ... Tube part , 31a ... inner peripheral surface, 31b ... outer peripheral surface, 40 ... terminal support member, 41 ... seal member, 80 ... support base, 80a ... surface, 81 ... ultrasonic horn, 81a ... end face, 90 ... male housing, 91 ... Electric wire, 100 ... wire harness, 110 ... center conductor, 111 ... sheath, 120 ... caulking part, 121 ... connecting part, 210 ... opening, 211 ... round hole, 212 ... engaging part, 230 ... insertion hole, 230a ... large Cylindrical surface, 230b ... Step surface (contact surface), 2 0c ... small cylindrical surface, 231 ... accommodating space, 232 ... concave, 310 ... insertion hole, 310a ... opening, 311 ... first annular projection, 311 ... first annular projection, 311a ... first groove, 312 ... first 2 annular projections, 312a ... second groove, 313 ... third annular projection, 314 ... first annular projection, 314a ... first groove, 315 ... second annular projection, 315a ... second groove, 316: Third annular protrusion, 316a: Third groove part, 317: Fourth annular protrusion, 801 ... Slit part, 900 ... Wire harness, 901 ... Flange part, 902 ... Cylindrical part, 903 ... Cylindrical part, 904 ... Engagement projection, 905 ... lead-out part, 906 ... pressing member, C ... central axis, S 1 , S 2 ... gap

Claims (4)

電線及び前記電線の端部を収容する樹脂からなるハウジングを備えたワイヤハーネスの製造方法であって、
前記ハウジングを構成する第１部材と第２部材とを前記電線の軸方向に沿って向かい合わせて配置する配置工程と、
前記第１部材と前記第２部材とを超音波ホーンによって押し付けながら加振する超音波加振工程とを有し、
前記第１部材には、前記電線を挿通させる挿通孔が形成されると共に、前記挿通孔の開口を囲むように形成された複数の環状突起を有し、
前記第２部材には、前記配置工程で前記第１部材の前記複数の環状突起のうち少なくとも１つの環状突起に接触する接触面が形成され、
前記超音波加振工程は、前記複数の環状突起のうち最も外側に形成された環状突起を除く他の環状突起が溶融した溶融樹脂の外方への流動をその外側の環状突起によって抑制し、前記溶融樹脂を前記挿通孔の内周面と前記電線の外周面との間に流入させる工程である、
ワイヤハーネスの製造方法。 A method of manufacturing a wire harness including a wire and a housing made of a resin that accommodates an end of the wire,
An arranging step of arranging the first member and the second member constituting the housing so as to face each other along the axial direction of the electric wire;
An ultrasonic vibration step of vibrating while pressing the first member and the second member with an ultrasonic horn,
The first member has a plurality of annular protrusions formed so as to surround the opening of the insertion hole, and an insertion hole through which the electric wire is inserted is formed.
The second member is formed with a contact surface that contacts at least one of the plurality of annular protrusions of the first member in the arranging step,
The ultrasonic vibration step suppresses the outward flow of the molten resin in which the other annular protrusions other than the annular protrusion formed on the outermost side among the plurality of annular protrusions are melted by the outer annular protrusions, The molten resin is a step of flowing between the inner peripheral surface of the insertion hole and the outer peripheral surface of the electric wire,
Manufacturing method of wire harness. 前記複数の環状突起は、最も内側に形成された環状突起の前記挿通孔の中心軸方向の高さが他の環状突起の同方向の高さよりも高い、
請求項１に記載のワイヤハーネスの製造方法。 The plurality of annular protrusions have a height in the central axis direction of the insertion hole of the annular protrusion formed on the innermost side, which is higher than the height in the same direction of the other annular protrusions.
The manufacturing method of the wire harness of Claim 1. 前記複数の環状突起は、少なくとも３つの環状突起からなり、外側の環状突起ほど前記挿通孔の中心軸方向の高さが低い、
請求項１又は２に記載のワイヤハーネスの製造方法。 The plurality of annular protrusions includes at least three annular protrusions, and the outer annular protrusion has a lower height in the central axis direction of the insertion hole.
The manufacturing method of the wire harness of Claim 1 or 2. 前記複数の環状突起は、最も外側に形成された環状突起の前記挿通孔の中心軸方向の高さが他の環状突起の同方向の高さよりも高く、
前記第２部材には、前記最も外側に形成された環状突起を除く他の環状突起に接触する接触面の外周に環状の凹部が形成され、
前記超音波加振工程における前記他の環状突起の溶融に伴って前記最も外側に形成された環状突起の先端部が前記凹部の奥側に進入する、
請求項１に記載のワイヤハーネスの製造方法。 The plurality of annular protrusions have a height in the central axis direction of the insertion hole of the annular protrusion formed on the outermost side higher than the height in the same direction of the other annular protrusions,
In the second member, an annular recess is formed on the outer periphery of the contact surface that comes into contact with the other annular protrusions excluding the outermost annular protrusion,
With the melting of the other annular protrusion in the ultrasonic vibration step, the tip of the annular protrusion formed on the outermost side enters the back side of the recess,
The manufacturing method of the wire harness of Claim 1.
JP2012238046A 2012-10-29 2012-10-29 Method of manufacturing wire harness Pending JP2014089831A (en)

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