JP7238949B2 - wire harness - Google Patents

wire harness Download PDF

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JP7238949B2
JP7238949B2 JP2021199779A JP2021199779A JP7238949B2 JP 7238949 B2 JP7238949 B2 JP 7238949B2 JP 2021199779 A JP2021199779 A JP 2021199779A JP 2021199779 A JP2021199779 A JP 2021199779A JP 7238949 B2 JP7238949 B2 JP 7238949B2
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wire
fixing member
sheath
fixing
cable
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JP2022031329A (en
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直也 豊島
一 前上
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PROTERIAL, LTD.
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PROTERIAL, LTD.
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Description

本発明は、ワイヤハーネスに関する。 The present invention relates to wire harnesses.

車両用のワイヤハーネスとして、複数の電線をシースで一括して覆ったケーブルを用い、シースから延出した複数の電線を分岐させて異なる配線先へと配索するように構成されたものが知られている。このようなワイヤハーネスでは、複数の電線の分岐部において、各電線の延出方向を固定すると共に、シース内への水分の侵入を抑制するために、電線固定部が設けられている。 As a wire harness for a vehicle, a cable in which a plurality of electric wires are collectively covered with a sheath is used, and a plurality of electric wires extending from the sheath are branched and routed to different wiring destinations. It is In such a wire harness, a wire fixing portion is provided at a branch portion of a plurality of wires to fix the extension direction of each wire and to suppress moisture from entering the sheath.

特許文献1では、電線固定部と、ケーブルを車体等に固定するブラケット(固定部材)が取り付けられるブラケット取付部と、を一体に設けたワイヤハーネスが提案されている。 Patent Literature 1 proposes a wire harness in which a wire fixing portion and a bracket attachment portion to which a bracket (fixing member) for fixing a cable to a vehicle body or the like is attached are integrally provided.

特許第6213447号公報Japanese Patent No. 6213447

しかしながら、特許文献1に記載のワイヤハーネスでは、電線固定部とブラケット取付部とが一体となっているため、例えばブラケットを車体等に取り付けてから各電線を配線する場合に、配線作業がしにくくなるおそれがあるという問題があった。 However, in the wire harness described in Patent Document 1, since the wire fixing portion and the bracket mounting portion are integrated, it is difficult to perform wiring work when wiring each wire after the bracket is attached to the vehicle body, for example. There was a problem that there was a possibility that

そこで、本発明は、配線作業がしにくくなるおそれを低減可能なワイヤハーネスを提供することを目的とする。 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a wire harness capable of reducing the risk of difficulty in wiring work.

本発明は、上記課題を解決することを目的として、複数の電線、及び前記複数の電線を一括して覆うシースを有するケーブルと、前記シースの端部及び当該シースの端部から延出された前記複数の電線を覆うように形成され、前記複数の電線の延出方向を固定する電線固定部と、前記ケーブルを被固定対象に固定する固定部材が取り付けられる固定部材取付部と、を備え、前記電線固定部及び前記固定部材取付部は、樹脂モールドにより形成されており、前記電線固定部と前記固定部材取付部とは、ケーブル長手方向に互いに離間して設けられており、前記電線固定部と前記固定部材取付部間の前記ケーブルの可撓性により、前記電線固定部が前記固定部材取付部に対して相対移動可能となっている、ワイヤハーネスを提供する。 In order to solve the above problems, the present invention provides a cable having a plurality of electric wires and a sheath that collectively covers the plurality of electric wires, an end of the sheath, and a cable extending from the end of the sheath. a wire fixing portion formed to cover the plurality of wires and fixing the extending direction of the plurality of wires; The wire fixing portion and the fixing member mounting portion are formed by resin molding, the wire fixing portion and the fixing member mounting portion are provided apart from each other in the longitudinal direction of the cable, and the wire fixing portion and the fixing member mounting portion, the wire fixing portion is relatively movable with respect to the fixing member mounting portion due to the flexibility of the cable between the fixing member mounting portion.

また、本発明は、上記課題を解決することを目的として、複数の電線、及び前記複数の電線を一括して覆うシースを有するケーブルと、前記シースの端部及び当該シースの端部から延出された前記複数の電線を覆うように形成され、前記複数の電線の延出方向を固定する電線固定部と、前記ケーブルを被固定対象に固定する固定部材が取り付けられる固定部材取付部と、を備えたワイヤハーネスを製造する方法であって、前記電線固定部及び前記固定部材取付部を、樹脂モールドにより形成する樹脂成型工程を含み、前記樹脂成型工程に用いる金型として、前記電線固定部と前記固定部材取付部とをケーブル長手方向に離間させるための離間壁部を有するものを用い、前記電線固定部と前記固定部材取付部とを、ケーブル長手方向に互いに離間させ、前記電線固定部と前記固定部材取付部間の前記ケーブルの可撓性により、前記電線固定部を前記固定部材取付部に対して相対移動可能とする、ワイヤハーネスの製造方法を提供する。 Further, for the purpose of solving the above problems, the present invention provides a cable having a plurality of electric wires and a sheath that collectively covers the plurality of electric wires, an end portion of the sheath, and an end portion of the sheath extending from the end portion of the sheath. an electric wire fixing portion formed to cover the plurality of electric wires and fixing the extending direction of the plurality of electric wires; A method of manufacturing a wire harness comprising The wire fixing portion and the fixing member attaching portion are separated from each other in the longitudinal direction of the cable by using a separating wall portion for separating the fixing member attaching portion from the fixing member attaching portion in the longitudinal direction of the cable. Provided is a method of manufacturing a wire harness, wherein the flexibility of the cable between the fixing member mounting portions allows the wire fixing portion to move relative to the fixing member mounting portion.

本発明によれば、配線作業がしにくくなるおそれを低減可能なワイヤハーネスを提供できる。 ADVANTAGE OF THE INVENTION According to this invention, the wiring harness which can reduce the possibility that wiring work becomes difficult can be provided.

本発明の一実施の形態に係るワイヤハーネスを示す図であり、(a)は斜視図、(b)は側面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the wire harness which concerns on one embodiment of this invention, (a) is a perspective view, (b) is a side view. ケーブルの長手方向に垂直な断面を示す断面図である。It is a cross-sectional view showing a cross-section perpendicular to the longitudinal direction of the cable. 本発明の一実施の形態に係るワイヤハーネスの製造方法の手順を示すフロー図である。It is a flow figure showing the procedure of the manufacturing method of the wire harness concerning one embodiment of the present invention. (a),(b)は、樹脂成形工程を説明する説明図である。(a), (b) is explanatory drawing explaining a resin molding process.

[実施の形態]
以下、本発明の実施の形態を添付図面にしたがって説明する。
[Embodiment]
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

(ワイヤハーネスの全体構成)
図1は、本実施の形態に係るワイヤハーネスを示す図であり、(a)は斜視図、(b)は側面図である。本実施の形態に係るワイヤハーネス1は、自動車の電動パーキングブレーキ装置にその動作のための作動電流を供給すると共に、車輪の回転速度を計測するための回転速センサ(ABS(アンチロックブレーキシステム)センサ)の信号を伝送するために用いられるものである。
(Overall configuration of wire harness)
1A and 1B are diagrams showing a wire harness according to the present embodiment, in which FIG. 1A is a perspective view and FIG. 1B is a side view. The wire harness 1 according to the present embodiment supplies an operating current for the operation of an electric parking brake device of an automobile, and a rotation speed sensor (ABS (anti-lock braking system)) for measuring the rotation speed of a wheel. sensor) is used to transmit the signal.

図1(a),(b)に示すように、ワイヤハーネス1は、複数の電線2、及び複数の電線2を一括して覆うシース31を有するケーブル3と、シース31の端部及び当該シース31の端部から延出された複数の電線2を覆うように形成され、複数の電線2の延出方向を固定する電線固定部4と、ケーブル3を被固定対象(例えば、自動車の車体)に固定する固定部材5が取り付けられる固定部材取付部6と、を備えている。 As shown in FIGS. 1A and 1B, the wire harness 1 includes a plurality of wires 2, a cable 3 having a sheath 31 that collectively covers the plurality of wires 2, an end portion of the sheath 31 and the sheath. A wire fixing portion 4 that is formed to cover a plurality of wires 2 extending from the end of the wire 31 and fixes the extending direction of the plurality of wires 2, and an object to be fixed (for example, a vehicle body of an automobile) for the cable 3. and a fixing member attachment portion 6 to which a fixing member 5 to be fixed is attached.

(ケーブル3の構成)
図2は、ケーブル3の長手方向に垂直な断面を示す断面図である。図2に示すように、ケーブル3は、複数の電線2として、電動パーキングブレーキ装置に作動電流を供給する一対の電源線21,21と、回転速センサの信号を伝送する一対の信号線22,22と、を有している。
(Configuration of cable 3)
FIG. 2 is a sectional view showing a section perpendicular to the longitudinal direction of the cable 3. As shown in FIG. As shown in FIG. 2, the cable 3 includes, as a plurality of electric wires 2, a pair of power wires 21, 21 for supplying an operating current to the electric parking brake device, and a pair of signal wires 22, 22 for transmitting signals from the rotational speed sensor. 22 and .

一対の電源線21,21は、それぞれが複数の金属素線を撚り合せてなる金属導体線211を絶縁体212で被覆してなる絶縁電線である。一対の電源線21,21は、図略のコントローラから出力される電流を電動パーキングブレーキ装置に供給する。また、一対の信号線22,22は、それぞれが複数の金属素線を撚り合せてなる金属導体線221を絶縁体222で被覆してなる絶縁電線である。一対の信号線22,22は、回転速センサから出力される信号を図略のコントローラに伝送する。本実施の形態では、撚り合わされた一対の信号線22,22の周囲に熱可塑性ウレタンからなる内部シース231を設けることで、一対の信号線22,22を一体化した信号ケーブル23が形成されている。 The pair of power wires 21 , 21 is an insulated wire formed by coating a metal conductor wire 211 formed by twisting a plurality of metal wires with an insulator 212 . A pair of power lines 21, 21 supply current output from a controller (not shown) to the electric parking brake device. The pair of signal lines 22 , 22 is an insulated wire formed by coating a metal conductor wire 221 formed by twisting a plurality of metal wires with an insulator 222 . A pair of signal lines 22, 22 transmit a signal output from the rotational speed sensor to a controller (not shown). In the present embodiment, an inner sheath 231 made of thermoplastic urethane is provided around the pair of twisted signal wires 22, 22 to form a signal cable 23 integrating the pair of signal wires 22, 22. there is

一対の電源線21,21と信号ケーブル23とは、複数の介在32と共に撚り合わされており、その周囲に紙テープ等の押え巻きテープ33が螺旋状に巻き付けられている。押え巻きテープ33の周囲には、シース31が設けられている。シース31は、配索時等に柔軟に湾曲する屈曲性(可撓性)を有しており、本実施の形態では、シース31が熱可塑性ウレタンからなる。 A pair of power lines 21, 21 and a signal cable 23 are twisted together with a plurality of intermediates 32, and a pressure tape 33 such as a paper tape is spirally wound around them. A sheath 31 is provided around the pressing tape 33 . The sheath 31 has bendability (flexibility) to be flexibly bent at the time of routing, etc. In the present embodiment, the sheath 31 is made of thermoplastic urethane.

(電線固定部4及び固定部材取付部6の構成)
図1(a),(b)に戻り、電線固定部4は、複数の電線2の分岐部分を覆うように設けられており、シース31と各電線2とにわたって設けられている。電線固定部4は、各電線2の延出方向を固定する役割と、電線2の分岐部分からシース31内に水分が浸入することを抑制する役割とを果たすものである。以下、シース31の端部近傍の部分の電線2を、電線2の延出部分と呼称する。
(Structure of wire fixing portion 4 and fixing member attaching portion 6)
Returning to FIGS. 1A and 1B, the wire fixing portion 4 is provided so as to cover the branched portions of the plurality of wires 2 and is provided across the sheath 31 and each wire 2 . The wire fixing portion 4 serves to fix the extension direction of each wire 2 and to prevent moisture from entering the sheath 31 from the branched portion of the wire 2 . The wire 2 near the end of the sheath 31 is hereinafter referred to as the extension of the wire 2 .

電線固定部4は、シース31の端部の周囲を覆うシース囲繞部41と、電源線21,21の延出部分の周囲を一括して覆う電源線囲繞部42と、信号ケーブル23の周囲を覆う信号線囲繞部43と、を一体に有している。本実施の形態では、一対の電源線21,21の電源線囲繞部42からの延出方向は、シース囲繞部41内におけるシース31の長手方向と平行である。信号ケーブル23の信号線囲繞部43からの延出方向は、電源線21,21の電源線囲繞部42からの延出方向に対して傾斜(交差)している。信号ケーブル23は、この傾斜の角度に応じて電線固定部4内で屈曲されている。そして、この延出方向の傾斜により、自動車のタイヤハウス内での一対の電源線21,21及び信号ケーブル23の配索が容易化されている。 The wire fixing portion 4 includes a sheath surrounding portion 41 that covers the periphery of the end portion of the sheath 31, a power wire surrounding portion 42 that collectively covers the periphery of the extending portions of the power wires 21, 21, and a signal cable 23. It integrally has a signal line surrounding portion 43 for covering. In the present embodiment, the extending direction of the pair of power wires 21 , 21 from the power wire enclosing portion 42 is parallel to the longitudinal direction of the sheath 31 within the sheath enclosing portion 41 . The extending direction of the signal cable 23 from the signal wire enclosing portion 43 is inclined (intersects) with respect to the extending direction of the power wires 21 , 21 from the power wire enclosing portion 42 . The signal cable 23 is bent within the wire fixing portion 4 according to the angle of this inclination. The inclination of the extending direction facilitates routing of the pair of power lines 21 and 21 and the signal cable 23 in the tire house of the automobile.

電線固定部4は、樹脂モールドにより形成されている。本実施の形態では、電線固定部4として、シース31と同じ樹脂材料である熱可塑性ウレタンからなるものを用いた。本実施の形態では、シース31や信号ケーブル23の内部シース231も熱可塑性ウレタンからなるため、電線固定部4の樹脂モールド時に、電線固定部4とシース31及び内部シース231とが溶融一体化(溶着)し、シース31内へ水分が侵入するのが抑制され防水性が向上する。また、電線固定部4とシース31とが溶着するため、ケーブル3の長手方向に電線固定部4が移動することを抑制することができる。 The wire fixing portion 4 is formed by resin molding. In this embodiment, the wire fixing portion 4 is made of thermoplastic urethane, which is the same resin material as the sheath 31 . In this embodiment, the sheath 31 and the inner sheath 231 of the signal cable 23 are also made of thermoplastic urethane. The sheath 31 is welded to prevent moisture from entering the sheath 31, thereby improving waterproofness. Further, since the wire fixing portion 4 and the sheath 31 are welded together, it is possible to suppress the wire fixing portion 4 from moving in the longitudinal direction of the cable 3 .

固定部材取付部6は、固定部材5が取り付けられる円筒状の取付部61と、取付部61の軸方向両端部において径方向外方に突出するようにそれぞれ設けられた円環状のフランジ部62,62と、を一体に有している。取付部61は、ケーブル3と同軸の円筒状に形成されている。フランジ部62,62は、固定部材5のケーブル長手方向(取付部61の軸方向)に沿った移動を規制するためのものである。 The fixing member mounting portion 6 includes a cylindrical mounting portion 61 to which the fixing member 5 is mounted, and annular flange portions 62 provided at both ends in the axial direction of the mounting portion 61 so as to protrude radially outward. 62 and are integrally provided. The attachment portion 61 is formed in a cylindrical shape coaxial with the cable 3 . The flange portions 62, 62 are for restricting the movement of the fixing member 5 along the cable longitudinal direction (the axial direction of the mounting portion 61).

固定部材取付部6は、電線固定部4と同様に、樹脂モールドにより形成されている。本実施の形態では、固定部材取付部6は、シース31及び電線固定部4と同じ樹脂材料で構成されており、熱可塑性ウレタンからなる。これにより、固定部材取付部6の樹脂モールド時に、固定部材取付部6とシース31とが溶融一体化(溶着)するため、ケーブル3の長手方向に固定部材取付部6が移動することを抑制することができる。また、電線固定部4と固定部材取付部6とを同じ樹脂材料で構成することにより、1回の樹脂成型で電線固定部4と固定部材取付部6とを同時に形成することが可能となり、製造工程の簡略化及び製造コストの低減に寄与する。 As with the wire fixing portion 4, the fixing member attaching portion 6 is formed by resin molding. In this embodiment, the fixing member mounting portion 6 is made of the same resin material as the sheath 31 and the wire fixing portion 4, and is made of thermoplastic urethane. As a result, when the fixing member mounting portion 6 is resin-molded, the fixing member mounting portion 6 and the sheath 31 are melted and integrated (welded), so that movement of the fixing member mounting portion 6 in the longitudinal direction of the cable 3 is suppressed. be able to. Further, by forming the electric wire fixing portion 4 and the fixing member mounting portion 6 from the same resin material, it becomes possible to simultaneously form the electric wire fixing portion 4 and the fixing member mounting portion 6 by one resin molding. Contributes to process simplification and manufacturing cost reduction.

本実施の形態では、固定部材5は、金属製の固定金具からなる。固定部材5は、取付部61の外周に加締め付けられている。固定部材5は、矩形状の金属板を屈曲して形成されており、その一端が取付部61の外周に巻き付くように湾曲されており、その他端には車体等の被固定対象への固定のためのボルトを挿通させるボルト挿通穴50が形成されている。なお、固定部材5は、金属からなるものに限らず、例えば、樹脂からなるものを用いることもできる。 In this embodiment, the fixing member 5 is made of a metal fixture. The fixing member 5 is caulked to the outer circumference of the mounting portion 61 . The fixing member 5 is formed by bending a rectangular metal plate. One end of the fixing member 5 is curved so as to wrap around the outer periphery of the mounting portion 61, and the other end thereof is fixed to an object to be fixed such as a vehicle body. A bolt insertion hole 50 for inserting a bolt for is formed. The fixing member 5 is not limited to being made of metal, and may be made of resin, for example.

本実施の形態に係るワイヤハーネス1では、電線固定部4と固定部材取付部6とが、ケーブル3の長手方向に互いに離間して設けられている。つまり、本実施の形態では、電線固定部4と固定部材取付部6とが別体となっており、電線固定部4と固定部材取付部6との間にケーブル3の一部が存在している。換言すれば、電線固定部4と固定部材取付部6とが、ケーブル3の一部を介して連結されている。 In the wire harness 1 according to the present embodiment, the wire fixing portion 4 and the fixing member mounting portion 6 are provided apart from each other in the longitudinal direction of the cable 3 . That is, in the present embodiment, the wire fixing portion 4 and the fixing member mounting portion 6 are separate members, and a portion of the cable 3 exists between the wire fixing portion 4 and the fixing member mounting portion 6. there is In other words, the wire fixing portion 4 and the fixing member attaching portion 6 are connected via a portion of the cable 3 .

これにより、電線固定部4と固定部材取付部6間のケーブル3の可撓性により、電線固定部4が固定部材取付部6に対して相対移動可能となる。そのため、固定部材5を車体等に取り付けて固定部材取付部6の位置が固定された状態となっても、電線固定部4と固定部材取付部6とのケーブル3が曲がることによって、電線固定部4の位置を動かすことが可能となり、電源線21,21や信号ケーブル23の配線作業を行い易くなる。換言すれば、本実施の形態では、各電線2(一対の電源線21,21及び信号ケーブル23)の可撓性と、ケーブル3の可撓性の両方を利用して、各電線2の端部に設けられるコネクタやセンサ部等の位置合わせを行うことができ、各電線2へのダメージを抑制しつつコネクタやセンサ部等の配設を行うことが可能である。 As a result, the wire fixing portion 4 can move relative to the fixing member mounting portion 6 due to the flexibility of the cable 3 between the wire fixing portion 4 and the fixing member mounting portion 6 . Therefore, even if the fixing member 5 is attached to the vehicle body or the like and the position of the fixing member mounting portion 6 is fixed, the cable 3 between the wire fixing portion 4 and the fixing member mounting portion 6 is bent, so that the wire fixing portion does not move. 4 can be moved, making it easier to wire the power lines 21 and 21 and the signal cable 23 . In other words, in the present embodiment, both the flexibility of each wire 2 (the pair of power wires 21 and 21 and the signal cable 23) and the flexibility of the cable 3 are used to adjust the end of each wire 2. It is possible to align the connectors, sensors, and the like provided in the parts, and it is possible to dispose the connectors, the sensor parts, and the like while suppressing damage to each electric wire 2 .

電線固定部4と固定部材取付部6とが近すぎると、電線固定部4と固定部材取付部6とが干渉して、配線作業の自由度が低下してしまうため、電線固定部4と固定部材取付部6とのケーブル長手方向に沿った距離Lは、電線固定部4の固定部材取付部6側の端部、すなわちシース囲繞部41の肉厚R以上であることが望ましい。電線固定部4と固定部材取付部6とのケーブル長手方向に沿った距離Lをシース囲繞部41の肉厚R以上とすることで、電線固定部4と固定部材取付部6間のケーブル3を屈曲させたとしても、電線固定部4と固定部材取付部6とが接触(干渉)しにくくなり、より電源線21,21や信号ケーブル23を配線し易くなる。 If the wire fixing portion 4 and the fixing member mounting portion 6 are too close, the wire fixing portion 4 and the fixing member mounting portion 6 interfere with each other, which reduces the degree of freedom of wiring work. It is desirable that the distance L along the longitudinal direction of the cable from the member mounting portion 6 is equal to or greater than the wall thickness R of the end portion of the wire fixing portion 4 on the side of the fixing member mounting portion 6 , that is, the sheath surrounding portion 41 . By setting the distance L between the wire fixing portion 4 and the fixing member mounting portion 6 in the cable longitudinal direction to be equal to or greater than the thickness R of the sheath surrounding portion 41, the cable 3 between the wire fixing portion 4 and the fixing member mounting portion 6 is Even if they are bent, the wire fixing portion 4 and the fixing member attaching portion 6 are less likely to contact (interfere), making it easier to wire the power wires 21 and 21 and the signal cable 23 .

また、詳細は後述するが、本実施の形態では共通の金型で電線固定部4と固定部材取付部6とを樹脂成形するため、電線固定部4と固定部材取付部6とが近すぎると、電線固定部4と固定部材取付部6とを離間させる壁(離間壁部)が薄くなり当該壁が変形し易くなってしまい、金型の寿命が低下してしまうおそれが生じる。そのため、電線固定部4と固定部材取付部6とのケーブル長手方向に沿った距離Lは、少なくとも1mm以上であるとよく、5mm以上であることがより好ましい。 Further, although the details will be described later, in the present embodiment, since the wire fixing portion 4 and the fixing member mounting portion 6 are resin-molded using a common mold, if the wire fixing portion 4 and the fixing member mounting portion 6 are too close, In addition, the wall separating the wire fixing portion 4 and the fixing member mounting portion 6 (separating wall portion) becomes thin and easily deformed, which may shorten the life of the mold. Therefore, the distance L along the cable longitudinal direction between the wire fixing portion 4 and the fixing member attaching portion 6 is preferably at least 1 mm or more, and more preferably 5 mm or more.

さらに、本実施の形態では共通の金型で電線固定部4と固定部材取付部6とが離れすぎていると、金型が無駄に大型化し製造コストが高くなってしまう。そのため、電線固定部4と固定部材取付部6とのケーブル長手方向に沿った距離Lは、50mm以下であることが好ましい。電線固定部4と固定部材取付部6との距離Lを小さくすることによって、車両の振動に伴い電線固定部4が大きく揺れ動いてしまうことも抑制可能になる。なお、車両の振動に伴い電線固定部4が大きく揺れ動いてしまうことをより抑制するという観点から言えば、距離Lは、20mm以下であることがより好ましい。 Furthermore, in the present embodiment, if the wire fixing portion 4 and the fixing member mounting portion 6 are too far from each other in a common mold, the size of the mold is unnecessarily increased, resulting in an increase in manufacturing cost. Therefore, the distance L along the cable longitudinal direction between the wire fixing portion 4 and the fixing member attaching portion 6 is preferably 50 mm or less. By reducing the distance L between the wire fixing portion 4 and the fixing member mounting portion 6, it is possible to suppress the wire fixing portion 4 from swinging greatly due to the vibration of the vehicle. From the viewpoint of further suppressing the wire fixing portion 4 from swinging greatly due to vibration of the vehicle, it is more preferable that the distance L is 20 mm or less.

なお、電線固定部4と固定部材取付部6とを別体とすることによって、部品点数が増加するおそれが生じるが、本実施の形態では、これら電線固定部4と固定部材取付部6を樹脂モールドにより形成しているため、実質的に部品点数の増加はなく、部品点数の増加による管理コストの増加等の問題も抑制できる。さらに、詳細は後述するが、本実施の形態では、電線固定部4と固定部材取付部6を1回の樹脂成型で形成できるため、電線固定部4や固定部材取付部6を別途作製しケーブル3に取り付ける場合と比較して、より容易にかつ短時間で製造が可能であり、量産性を向上させることができる。 Although there is a risk that the number of parts may increase by making the wire fixing portion 4 and the fixing member mounting portion 6 separate, in the present embodiment, the wire fixing portion 4 and the fixing member mounting portion 6 are made of resin. Since it is formed by molding, there is practically no increase in the number of parts, and problems such as an increase in management costs due to an increase in the number of parts can be suppressed. Furthermore, although the details will be described later, in the present embodiment, the wire fixing portion 4 and the fixing member mounting portion 6 can be formed by one resin molding. Compared to the case of attaching to 3, it can be manufactured more easily and in a short time, and mass productivity can be improved.

(ワイヤハーネスの製造方法)
図3は、本実施の形態に係るワイヤハーネスの製造方法の手順を示すフロー図である。図3に示すように、ワイヤハーネス1を製造する際には、まず、ステップS1にて、ケーブル3を形成するケーブル形成工程を行う。その後、ステップS2にて、ケーブル3の一部のシース31及び押え巻きテープ33を除去して、電源線21,21と信号ケーブル23を露出させ、電線2の分岐の準備を行う分岐部露出工程を行う。
(Method for manufacturing wire harness)
FIG. 3 is a flowchart showing the steps of the wire harness manufacturing method according to the present embodiment. As shown in FIG. 3, when manufacturing the wire harness 1, first, in step S1, a cable forming process for forming the cable 3 is performed. Thereafter, in step S2, a branch portion exposing step of removing a portion of the sheath 31 and the pressure winding tape 33 of the cable 3 to expose the power lines 21 and 21 and the signal cable 23 and prepare for branching of the electric wire 2. I do.

その後、ステップS3にて、電線固定部4及び固定部材取付部6を樹脂モールドにより形成する樹脂成形工程を行う。図4(a),(b)に示すように、樹脂成形工程に用いる金型8としては、電線固定部4と固定部材取付部6とをケーブル長手方向に離間させるための離間壁部83を有するものを用いる。 Thereafter, in step S3, a resin molding process is performed to form the wire fixing portion 4 and the fixing member mounting portion 6 by resin molding. As shown in FIGS. 4(a) and 4(b), the mold 8 used in the resin molding step has a separating wall portion 83 for separating the wire fixing portion 4 and the fixing member mounting portion 6 in the longitudinal direction of the cable. Use what you have.

金型8は、樹脂が流入することにより電線固定部4が成型される電線固定部成型部81と、樹脂が流入することにより固定部材取付部6が成型される固定部材取付部成形部82と、を有している。そして、これら電線固定部成型部81と固定部材取付部成形部82との間に、離間壁部83が形成されている。また、金型8は、1つの樹脂流入口84を有しており、この樹脂流入口84から分岐して電線固定部成型部81と固定部材取付部成形部82の両方に樹脂を導く樹脂流路85を有している。なお、図4(a),(b)では、金型8が、上型8a,第1下型8b、第2下型8cの3つの分割金型で構成される場合を示しているが、金型8の分割数はこれに限定されず、金型8の分割位置も図示の例に限定されない。 The mold 8 includes an electric wire fixing portion molding portion 81 in which the electric wire fixing portion 4 is molded by inflow of resin, and a fixing member mounting portion molding portion 82 in which the fixing member mounting portion 6 is molded by inflow of resin. ,have. A separation wall portion 83 is formed between the wire fixing portion molding portion 81 and the fixing member mounting portion molding portion 82 . Further, the mold 8 has one resin inlet 84, and a resin flow branches off from the resin inlet 84 and guides the resin to both the wire fixing portion molding portion 81 and the fixing member mounting portion molding portion 82. It has a path 85 . 4(a) and 4(b) show the case where the mold 8 is composed of three divided molds, an upper mold 8a, a first lower mold 8b, and a second lower mold 8c. The number of divisions of the mold 8 is not limited to this, and the division position of the mold 8 is not limited to the illustrated example.

金型8にケーブル3をセットした状態で樹脂流入口84から樹脂を流し込むと、樹脂流路85を介して電線固定部成型部81と固定部材取付部成形部82に樹脂が流し込まれる。電線固定部成型部81と固定部材取付部成形部82に流し込まれた樹脂が冷却され硬化されると、電線固定部4及び固定部材取付部6が形成される。金型8は離間壁部83を有しているため、電線固定部4と固定部材取付部6とは、ケーブル3の長手方向に互いに離間して形成されることになる。その結果、電線固定部4と固定部材取付部6間のケーブル3の可撓性により、電線固定部4が固定部材取付部6に対して相対移動可能となる。 When the cable 3 is set in the mold 8 and the resin is poured from the resin inlet 84 , the resin is poured into the wire fixing portion molding portion 81 and the fixing member mounting portion molding portion 82 through the resin flow path 85 . When the resin poured into the wire fixing portion molding portion 81 and the fixing member mounting portion forming portion 82 is cooled and hardened, the wire fixing portion 4 and the fixing member mounting portion 6 are formed. Since the mold 8 has the separating wall portion 83 , the wire fixing portion 4 and the fixing member attaching portion 6 are formed apart from each other in the longitudinal direction of the cable 3 . As a result, the flexibility of the cable 3 between the wire fixing portion 4 and the fixing member mounting portion 6 allows the wire fixing portion 4 to move relative to the fixing member mounting portion 6 .

本実施の形態では、電線固定部4と固定部材取付部6が構造として別体になっているが、両者を共通の金型8を用いて1回の樹脂成形で形成できるので、製造にかかる手間を削減できる。 In the present embodiment, the wire fixing portion 4 and the fixing member mounting portion 6 are separate structures, but since both can be formed by one resin molding using a common mold 8, it takes a long time to manufacture. You can save time.

ステップS3の樹脂成形工程を行った後、ステップS4にて、電源線21,21や信号ケーブル23の端部にコネクタやセンサ部等を取り付けるコネクタ等取付工程を行う。その後、ステップS5にて、固定部材取付部6に固定部材5を取り付ける固定部材取付工程を行う。以上により、ワイヤハーネス1が得られる。 After performing the resin molding process in step S3, in step S4, a process for attaching connectors, sensors, etc. to the ends of the power lines 21 and 21 and the signal cable 23 is performed. After that, in step S5, a fixing member attaching step of attaching the fixing member 5 to the fixing member attaching portion 6 is performed. As described above, the wire harness 1 is obtained.

(実施の形態の作用及び効果)
以上説明したように、本実施の形態に係るワイヤハーネス1では、電線固定部4及び固定部材取付部6は、樹脂モールドにより形成されており、電線固定部4と固定部材取付部6とは、ケーブル長手方向に互いに離間して設けられており、電線固定部4と固定部材取付部6間のケーブル3の可撓性により、電線固定部4が固定部材取付部6に対して相対移動可能となっている。
(Actions and effects of the embodiment)
As described above, in the wire harness 1 according to the present embodiment, the wire fixing portion 4 and the fixing member mounting portion 6 are formed by resin molding, and the wire fixing portion 4 and the fixing member mounting portion 6 are They are provided apart from each other in the longitudinal direction of the cable, and the flexibility of the cable 3 between the wire fixing portion 4 and the fixing member mounting portion 6 allows the wire fixing portion 4 to move relative to the fixing member mounting portion 6 . It's becoming

このように構成することで、ケーブル3が固定部材5により車体等に固定されている場合であっても、電源線21,21と信号ケーブル23を配線し易くなる。また、車両の振動の影響を受けて電源線21,21や信号ケーブル23が振動した場合であっても、電線固定部4と固定部材取付部6間のケーブル3によって揺れを緩和して、電線固定部4からの電源線21,21及び信号ケーブル23の延出部の損傷を抑制することも可能になる。 By configuring in this way, even when the cable 3 is fixed to the vehicle body or the like by the fixing member 5, the wiring of the power lines 21, 21 and the signal cable 23 becomes easy. Further, even if the power lines 21 and 21 and the signal cable 23 vibrate due to the vibration of the vehicle, the cable 3 between the wire fixing portion 4 and the fixing member mounting portion 6 mitigates the vibration, It is also possible to suppress damage to the extending portions of the power lines 21 and 21 and the signal cable 23 from the fixed portion 4 .

(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等は、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, technical ideas understood from the embodiments described above will be described with reference to the reference numerals and the like in the embodiments. However, each reference numeral and the like in the following description do not limit the constituent elements in the claims to the members and the like specifically shown in the embodiment.

[1]複数の電線(2)、及び前記複数の電線(2)を一括して覆うシース(31)を有するケーブル(3)と、前記シース(31)の端部及び当該シース(31)の端部から延出された前記複数の電線(2)を覆うように形成され、前記複数の電線(2)の延出方向を固定する電線固定部(4)と、前記ケーブル(3)を被固定対象に固定する固定部材(7)が取り付けられる固定部材取付部(6)と、を備え、前記電線固定部(4)及び前記固定部材取付部(6)は、樹脂モールドにより形成されており、前記電線固定部(4)と前記固定部材取付部(6)とは、ケーブル長手方向に互いに離間して設けられており、前記電線固定部(4)と前記固定部材取付部(6)間の前記ケーブル(3)の可撓性により、前記電線固定部(4)が前記固定部材取付部(6)に対して相対移動可能となっている、ワイヤハーネス(1)。 [1] A cable (3) having a plurality of electric wires (2) and a sheath (31) that collectively covers the plurality of electric wires (2), an end of the sheath (31), and the sheath (31) A wire fixing part (4) formed to cover the plurality of wires (2) extending from the end portion and fixing the extending direction of the plurality of wires (2); and a fixing member mounting portion (6) to which a fixing member (7) to be fixed to a fixed object is attached, wherein the electric wire fixing portion (4) and the fixing member mounting portion (6) are formed by resin molding. , the wire fixing portion (4) and the fixing member mounting portion (6) are provided apart from each other in the longitudinal direction of the cable, and the wire fixing portion (4) and the fixing member mounting portion (6) The wire harness (1), wherein the wire fixing portion (4) is relatively movable with respect to the fixing member mounting portion (6) due to the flexibility of the cable (3).

[2]前記電線固定部(4)と前記固定部材取付部(6)とのケーブル長手方向に沿った距離は、前記電線固定部(4)の前記固定部材取付部(6)側の端部における前記電線固定部(4)の肉厚以上である、[1]に記載のワイヤハーネス(1)。 [2] The distance along the cable longitudinal direction between the wire fixing portion (4) and the fixing member mounting portion (6) is the end of the wire fixing portion (4) on the fixing member mounting portion (6) side. The wire harness (1) according to [1], which is equal to or greater than the thickness of the wire fixing portion (4) in the above.

[3]前記電線固定部(4)と前記固定部材取付部(6)とのケーブル長手方向に沿った距離が、1mm以上である、[1]または[2]に記載のワイヤハーネス(1)。 [3] The wire harness (1) according to [1] or [2], wherein the distance along the cable longitudinal direction between the wire fixing portion (4) and the fixing member mounting portion (6) is 1 mm or more. .

[4]前記電線固定部(4)と前記固定部材取付部(6)とは、同じ樹脂材料で構成されている、[1]乃至[3]の何れか1項に記載のワイヤハーネス(1)。 [4] The wire harness (1 ).

[5]複数の電線(2)、及び前記複数の電線(2)を一括して覆うシース(31)を有するケーブル(3)と、前記シース(3)の端部及び当該シース(3)の端部から延出された前記複数の電線(2)を覆うように形成され、前記複数の電線(2)の延出方向を固定する電線固定部(4)と、前記ケーブル(3)を被固定対象に固定する固定部材(7)が取り付けられる固定部材取付部(6)と、を備えたワイヤハーネス(1)を製造する方法であって、前記電線固定部(4)及び前記固定部材取付部(6)を、樹脂モールドにより形成する樹脂成型工程を含み、前記樹脂成型工程に用いる金型(8)として、前記電線固定部(4)と前記固定部材取付部(6)とをケーブル長手方向に離間させるための離間壁部(83)を有するものを用い、前記電線固定部(4)と前記固定部材取付部(6)とを、ケーブル長手方向に互いに離間させ、前記電線固定部(4)と前記固定部材取付部(6)間の前記ケーブル(3)の可撓性により、前記電線固定部(4)を前記固定部材取付部(6)に対して相対移動可能とする、ワイヤハーネスの製造方法。 [5] A cable (3) having a plurality of electric wires (2) and a sheath (31) that collectively covers the plurality of electric wires (2), an end of the sheath (3) and the sheath (3) A wire fixing part (4) formed to cover the plurality of wires (2) extending from the end portion and fixing the extending direction of the plurality of wires (2); A method for manufacturing a wire harness (1) comprising a fixing member mounting portion (6) to which a fixing member (7) to be fixed to a fixed object is attached, wherein the wire fixing portion (4) and the fixing member mounting A resin molding step of forming the portion (6) by resin molding is included, and as a mold (8) used in the resin molding step, the wire fixing portion (4) and the fixing member mounting portion (6) are arranged in the longitudinal direction of the cable. The wire fixing portion (4) and the fixing member mounting portion (6) are separated from each other in the longitudinal direction of the cable by using the one having a separation wall portion (83) for separating in the direction, and the wire fixing portion ( 4) and the fixing member mounting portion (6), the flexibility of the cable (3) allows the wire fixing portion (4) to move relative to the fixing member mounting portion (6). Harness manufacturing method.

[6]前記金型(8)は、樹脂が流入することにより前記電線固定部(4)が成型される電線固定部成型部(81)と、樹脂が流入することにより前記固定部材取付部(6)が成型される固定部材取付部成形部(82)と、樹脂流入口(84)から分岐して前記電線固定部成型部(81)と前記固定部材取付部成形部(82)の両方に樹脂を導く樹脂流路(85)と、を有する、[5]に記載のワイヤハーネスの製造方法。 [6] The mold (8) includes an electric wire fixing part molding part (81) in which the electric wire fixing part (4) is molded by resin inflow, and the fixing member mounting part ( 6) is molded into the fixing member mounting portion molding portion (82), and branched from the resin inlet (84) to both the wire fixing portion molding portion (81) and the fixing member mounting portion molding portion (82). A method for manufacturing a wire harness according to [5], further comprising: a resin flow path (85) for guiding resin.

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。 Although the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the scope of claims. Also, it should be noted that not all combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

本発明は、その趣旨を逸脱しない範囲で適宜変形して実施することが可能である。例えば、上記実施の形態では、一対の信号線22,22の周囲に内部シース231を設けて信号ケーブル23を形成する場合について説明したが、これに限らず、内部シース231を省略して、シース31の端部から一対の信号線22,22が延出されるように構成してもよい。 The present invention can be appropriately modified and implemented without departing from the gist thereof. For example, in the above embodiment, the case where the signal cable 23 is formed by providing the inner sheath 231 around the pair of signal lines 22, 22 has been described. A pair of signal lines 22 , 22 may be configured to extend from the end of 31 .

また、上記実施の形態では、ワイヤハーネス1が1つの固定部材取付部6を備えている場合について説明したが、ワイヤハーネス1は、複数の固定部材取付部6を備えていてもよい。この場合、最も電線固定部4に近い固定部材取付部6と、電線固定部4とが、ケーブル長手方向に互いに離間して設けられていればよい。 Moreover, in the above-described embodiment, the wire harness 1 includes one fixing member mounting portion 6 , but the wire harness 1 may include a plurality of fixing member mounting portions 6 . In this case, the fixing member mounting portion 6 closest to the wire fixing portion 4 and the wire fixing portion 4 may be provided apart from each other in the longitudinal direction of the cable.

1…ワイヤハーネス
2…電線
3…ケーブル
31…シース
4…電線固定部
5…固定部材
6…固定部材取付部
8…金型
81…電線固定部成型部
82…固定部材取付部成形部
83…離間壁部
84…樹脂流入口
85…樹脂流路
REFERENCE SIGNS LIST 1 wire harness 2 electric wire 3 cable 31 sheath 4 electric wire fixing portion 5 fixing member 6 fixing member mounting portion 8 mold 81 electric wire fixing portion molding portion 82 fixing member mounting portion molding portion 83 separation Wall portion 84...Resin inlet 85...Resin flow path

Claims (5)

複数の電線、及び前記複数の電線を一括して覆うシースを有し、可撓性を有するケーブルと、
前記シース及び当該シースの端部から延出された前記複数の電線を覆うように形成され、前記複数の電線の延出方向を固定する電線固定部と、
前記シースを覆うように形成され、前記ケーブルを被固定対象に固定する固定部材が取り付けられる固定部材取付部と、
を備え、
前記電線固定部及び前記固定部材取付部は、樹脂モールドにより形成されており、
前記電線固定部と前記固定部材取付部とは、ケーブル長手方向に互いに離間して設けられており、
前記シースと前記電線固定部とが溶着しているとともに、前記シースと前記固定部材取付部とが溶着しており
前記固定部材取付部は、そのケーブル長手方向にわたって前記シースを覆っているとともに、前記固定部材と前記シースとの間に介在している
ワイヤハーネス。
a flexible cable having a plurality of electric wires and a sheath that collectively covers the plurality of electric wires;
a wire fixing portion formed to cover the sheath and the plurality of wires extending from an end portion of the sheath and fixing the extending direction of the plurality of wires;
a fixing member attachment portion formed to cover the sheath and to which a fixing member for fixing the cable to a target to be fixed is attached;
with
The wire fixing portion and the fixing member mounting portion are formed by resin molding,
The wire fixing portion and the fixing member mounting portion are provided apart from each other in the longitudinal direction of the cable,
The sheath and the wire fixing portion are welded together, and the sheath and the fixing member mounting portion are welded together,
The fixing member mounting portion covers the sheath over the cable longitudinal direction and is interposed between the fixing member and the sheath.
wire harness.
前記複数の電線は、それぞれ、金属導体線と、前記金属導体線を被覆する絶縁体と、を有し、
前記複数の電線は、それぞれ、前記電線固定部内において前記金属導体線が前記絶縁体から露出することなく前記電線固定部から延出している、
請求項1に記載のワイヤハーネス。
each of the plurality of electric wires has a metal conductor wire and an insulator covering the metal conductor wire,
Each of the plurality of electric wires extends from the electric wire fixing portion without the metal conductor wire being exposed from the insulator in the electric wire fixing portion,
The wire harness according to claim 1.
前記シース、前記電線固定部、及び前記固定部材取付部は、熱可塑性ウレタンからなる、
請求項1または2に記載のワイヤハーネス。
The sheath, the wire fixing portion, and the fixing member mounting portion are made of thermoplastic urethane,
The wire harness according to claim 1 or 2.
前記複数の電線の一部は、内部シースにより覆われている状態で前記シースの端部から延出されており、
前記内部シースと前記電線固定部とが溶着している、
請求項1乃至3の何れか1項に記載のワイヤハーネス。
a portion of the plurality of electric wires extends from an end of the sheath while being covered with an inner sheath;
The inner sheath and the wire fixing portion are welded together,
The wire harness according to any one of claims 1 to 3.
前記内部シースは、熱可塑性ウレタンからなる、
請求項4に記載のワイヤハーネス。
The inner sheath is made of thermoplastic urethane,
The wire harness according to claim 4.
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Publication number Priority date Publication date Assignee Title
CA654969A (en) * 1956-03-30 1963-01-01 Bendix Aviation Corporation Electrical wiring harness

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