WO2016027690A1 - Heat-shrinkable corrugated tube, production method for heat-shrinkable corrugated tube, and production method for wiring module with protection member - Google Patents

Heat-shrinkable corrugated tube, production method for heat-shrinkable corrugated tube, and production method for wiring module with protection member Download PDF

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Publication number
WO2016027690A1
WO2016027690A1 PCT/JP2015/072443 JP2015072443W WO2016027690A1 WO 2016027690 A1 WO2016027690 A1 WO 2016027690A1 JP 2015072443 W JP2015072443 W JP 2015072443W WO 2016027690 A1 WO2016027690 A1 WO 2016027690A1
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WO
WIPO (PCT)
Prior art keywords
corrugated tube
heat
shrinkable
shape
wiring module
Prior art date
Application number
PCT/JP2015/072443
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French (fr)
Japanese (ja)
Inventor
勇人 青井
裕一 木本
康志 井谷
須藤　博
安隆 江本
関口　守
Original Assignee
株式会社オートネットワーク技術研究所
住友電気工業株式会社
住友電装株式会社
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Application filed by 株式会社オートネットワーク技術研究所, 住友電気工業株式会社, 住友電装株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2016027690A1 publication Critical patent/WO2016027690A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/18—Pleated or corrugated hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs

Definitions

  • This invention relates to a technique for protecting electric wires and the like.
  • Patent Document 1 discloses a technique in which a heat-shrinkable tube having a hot melt layer and a notch is formed on the bent portion of a wire bundle, and the heat-shrinkable tube is thermally shrunk.
  • Patent Document 2 discloses a configuration in which a folding portion capable of maintaining a predetermined bent cross-sectional shape is provided on a part of the peripheral wall of the heat-shrinkable tube.
  • Patent Document 3 discloses a corrugated tube having a cut.
  • the corrugated tube of Patent Document 3 is provided with a fastening mechanism for maintaining it in a cylindrical shape.
  • the corrugated tube can be bent easily.
  • the electric wire protrudes from the cut when the corrugated tube is attached to the electric wire or after the electric wire is inserted. There is a fear.
  • an object of the present invention is to make it possible to easily attach a corrugated tube having no cut along the entire extending direction to an electric wire or the like.
  • the heat-shrinkable corrugated tube according to the first aspect is formed in a cylindrical shape and is heat-shrinkable so as to exhibit a corrugated tube shape by heating.
  • a 2nd aspect is a heat contraction corrugated tube which concerns on a 1st aspect, Comprising: The bridge
  • the method for manufacturing a heat-shrinkable corrugated tube according to the third aspect includes (a1) a step of molding the corrugated tube and (a2) a step of crosslinking the corrugated tube molded by the step (a1). And (a3) a step of stretching the corrugated tube cross-linked in the step (a2) so that its internal space becomes large.
  • a method for manufacturing a wiring module with a protective member according to a fourth aspect includes (b1) a step of passing at least one linear conductor through a heat-shrinkable corrugated tube, and (b2) the heat-shrinkable corrugated after (b1). Attaching the protective member to the at least one linear conductor by heat shrinking the tube.
  • the fifth aspect is a method for manufacturing a wiring module with a protective member according to the fourth aspect, wherein in the step (b2), the heat shrinkable corrugated tube is heat shrunk until it exhibits a corrugated tube shape.
  • a sixth aspect is a method for manufacturing a wiring module with a protective member according to the fourth or fifth aspect, wherein in the step (b1), an end part is provided at an end of the at least one linear conductor.
  • the at least one linear conductor is passed through the heat-shrinkable corrugated tube from the end part side.
  • an electric wire or the like can be easily inserted into the heat-shrinkable corrugated tube before heat-shrinking. And it can mount
  • a heat-shrinkable corrugated tube that is formed in a cylindrical shape and heat-shrinks by heating and exhibits a corrugated tube shape.
  • the heat-shrinkable corrugated tube can be easily attached to the linear conductor as a protective member regardless of whether or not the corrugated tube shape is finally exhibited.
  • the protective member since the protective member has a corrugated tube shape, it can be easily bent.
  • the heat-shrinkable corrugated tube has a relatively large inner diameter, it is possible to easily pass at least one linear conductor through the heat-shrinkable corrugated tube while the end parts are attached.
  • a heat shrink corrugated tube, a method for producing a heat shrink corrugated tube, and a method for producing a wiring module with a protective member will be described.
  • FIG. 1 is a perspective view showing a heat-shrinkable corrugated tube 10B before heat shrinking
  • FIG. 2 is a perspective view showing the corrugated tube 10 after heat shrinking.
  • the heat-shrink corrugated tube 10B has a cylindrical shape.
  • the heat shrink corrugated tube 10B is not formed with a cut along the entire extending direction.
  • the heat-shrinkable corrugated tube 10B has a cylindrical shape, but may have a polygonal cylindrical shape such as a triangular cylindrical shape or a rectangular shape, or may have an elliptical cylindrical shape.
  • the heat-shrinkable corrugated tube 10B is formed in a cylindrical shape in which cross-sectional shapes of the same size are continuous in the extending direction.
  • the heat-shrinkable corrugated tube 10B has a level difference smaller than that of the corrugated tube 10 after heat shrinkage, and irregularities corresponding to the thick annular portion 12 and the thin annular portion 14 of the corrugated tube 10 after heat shrinkage are formed. Also good.
  • the corrugated tube 10 after heat shrinkage has a corrugated tube shape.
  • the corrugated tube 10 is also not formed with a cut along the extending direction and existing throughout the extending direction.
  • the corrugated tube 10 is formed in a cylindrical shape in which large annular portions 12 and narrow annular portions 14 are provided alternately and continuously along the extending direction.
  • the thick annular portion 12 and the narrow annular portion 14 are each formed in a circular annular shape (a circular sectional view perpendicular to the axial direction of the tube 10).
  • the cross-sectional shape of the corrugated tube 10 is not limited to a circular shape, and may be an elliptical shape, a polygonal shape, or the like.
  • position an electric wire etc. exists inside the corrugated tube 10, the space which can arrange
  • the interposition part 13 is also connected to the thick annular part 12 and the narrow annular part 14 at an angle. Therefore, when the corrugated tube 10 is observed in a cross section along the axial direction, a shape in which rectangular waves are continuous is shown. But the cross section along the axial direction of a corrugated tube may be a shape where a sine wave or a triangular wave continues.
  • the corrugated tube shape includes all shapes in which thick annular portions and thin annular portions are alternately continued along the axial direction.
  • the inner diameter of the narrow annular portion 14 is smaller than the inner diameter of the heat shrink corrugated tube 10B before heat shrink.
  • the inner diameter dimensions of both the thick annular portion 12 and the narrow annular portion 14 are smaller than the inner diameter dimension of the heat-shrinkable corrugated tube 10B before heat shrinking.
  • the corrugated tube 10 is a step peripheral portion between the thick annular portion 12 and the narrow annular portion 14, here, between the thick annular portion 12 and the interposed portion 13, between the narrow annular portion 14 and the interposed portion 13, And it can be easily bent because the interposition part 13 elastically deforms.
  • the heat-shrinkable corrugated tube 10B before heat shrinkage can be heat-shrinked so as to exhibit the shape of the corrugated tube 10 after heat-shrinking. That is, the heat-shrinkable corrugated tube 10B can be heat-shrinked so as to be thin (in this case, the inner diameter dimension is reduced) and to have a shape in which the thick annular portions 12 and the fine annular portions 14 are alternately continuous.
  • the heat-shrinkable corrugated tube 10B becomes thin, when the whole extending direction becomes thin, and when a part of the extending direction (for example, a portion corresponding to the narrow annular portion 14) becomes thin. including.
  • the heat-shrinkable corrugated tube 10B is made of a crosslinkable polymer, and includes a crosslinked structure in which a plurality of polymers memorize the corrugated tube shape as described later. It is set as the structure extended with the corrugated tube shape memorized.
  • Examples of applicable polymers include polyethylene, polyolefin resins similar to ethylene-vinyl acetate copolymers, fluororesins, and the like.
  • an adhesive such as hot melt is attached inside the heat-shrinkable corrugated tube 10B, and more preferably, they are attached only inside the end portion of the heat-shrinkable corrugated tube.
  • This adhesive plays a role of adhering the corrugated tube to the linear member to be attached and a function of closing a gap between the linear member and the corrugated tube.
  • an electric wire or the like can be easily inserted into the heat-shrinkable corrugated tube 10B before heat-shrinking.
  • the heat-shrinkable corrugated tube 10B is heat-shrinked, so that the heat-shrinkable corrugated tube 10 can be easily attached to an electric wire or the like. That is, it is possible to easily attach the corrugated tube 10 in which no cut for inserting an electric wire or the like is formed along the entire extending direction to the electric wire or the like.
  • the corrugated tube 10 that has been heat-shrinked and has a corrugated tube shape can be easily bent. For this reason, the said electric wire etc. can be protected by the corrugated tube 10, keeping the electric wire etc. in the bendable state.
  • the method of manufacturing the heat-shrinkable corrugated tube 10B includes a step (a1) of molding the corrugated tube 10C, a step (a2) of crosslinking the corrugated tube 10C molded by the step (a1), A step (a3) of stretching the corrugated tube 10C subjected to the crosslinking treatment in the step (a2) so that the internal space thereof becomes large.
  • FIG. 3 is an explanatory diagram showing an example of the step (a1).
  • the corrugated tube 10C is manufactured using a corrugated tube mold forming apparatus 50 described below.
  • the corrugated tube mold forming apparatus 50 includes an extruder 52, a plurality of pairs of molds 60, and a mold moving mechanism unit 68.
  • the extruder 52 is configured to extrude the molten resin material 51 through a gap between a die 53 provided at the tip and a point disposed inside thereof, and continuously supply the resin material 51 in a cylindrical shape (here, substantially cylindrical shape). Has been. Since the extruder 52 pushes the cylindrical resin material 51 into the pair of molds 60 in the closed state, the tip of the die 53 is located between the pair of molds 60 in the closed state at the upstream position in the molding path R. It arrange
  • the pair of molds 60 each have a mold surface 62 having a shape corresponding to the outer shape of the corrugated tube 10 in a closed state in which they are arranged to face each other.
  • Each mold surface 62 is formed in a shape obtained by dividing the outer surface shape of the corrugated tube 10 into two parts along the axial direction. A plurality of pairs of the molds 60 are prepared.
  • the mold moving mechanism 68 is configured to move a plurality of pairs of molds 60 along a pair of endless annular moving paths.
  • the mold moving mechanism unit 68 is a molding path R adjacent to the pair of movement paths, and the molding movement mechanism 68 is in a closed state in which the pair of molds 60 moved along each movement path are in contact with each other. Move from the upstream side of the path R toward the downstream side.
  • the mold moving mechanism 68 moves each moving path in an open state in which the pair of molds 60 are separated at positions other than the molding path R in the moving path.
  • the mold moving mechanism unit 68 is configured to move a plurality of pairs of molds 60 by connecting a plurality of molds 60 to an endless annular chain and rotating the gears by a motor to send the chains. Can be adopted.
  • the mold 60 has a configuration in which the resin material 51 supplied from the extruder 52 is in close contact with the mold surfaces 62 of the pair of molds 60.
  • a suction hole for sucking the resin material 51 is formed in the mold 60, and the resin material 51 is adsorbed to the mold surface by sucking air from the suction hole (vacuum molding method).
  • a configuration in which the resin material 51 is brought into close contact with the mold surface 62 by blowing air into the extruded resin material 51 (blow molding method), or a configuration using both of them is employed.
  • the resin material 51 is molded by a mold 60 into a corrugated tube 10C having the same shape as the corrugated tube 10, and is continuously sent out.
  • the corrugated tube 10 ⁇ / b> C is cooled through a cooling unit 66 using air, liquid, or the like, and then wound around a reel 67 and accommodated.
  • FIG. 4 is an explanatory view showing the step (a2).
  • step (a2) the corrugated tube 10C molded in the step (a1) is subjected to crosslinking treatment.
  • a crosslinking process is performed by the next crosslinking apparatus 70.
  • the cross-linking apparatus 70 includes a reel 72 that winds and accommodates a corrugated tube 10 ⁇ / b> C that is molded, a reel 78 on the downstream side, and an electron beam irradiation device 74 provided between the reels 72 and 78. .
  • the electron beam irradiation device 74 is disposed at a position and posture capable of irradiating the corrugated tube 10 ⁇ / b> C sent from the reel 72 toward the reel 78 with the electron beam irradiated from the irradiation window.
  • the corrugated tube 10C that has been molded is drawn from the reel 72 and exposed to the electron beam on the way to the reel 78. Thereby, the polymer of the corrugated tube 10C is crosslinked, and the crosslinked structure stores the shape of the corrugated tube 10C.
  • the corrugated tube 10 ⁇ / b> C is taken up by a reel 78 on the downstream side.
  • the corrugated tube 10C is subjected to crosslinking treatment with an electron beam
  • the crosslinking treatment may be performed by other radiation crosslinking treatment, chemical crosslinking treatment, or the like.
  • FIG. 5 is an explanatory view showing the step (a3).
  • the corrugated tube 10C cross-linked in the step (a2) is stretched so that its internal space becomes large.
  • the enlargement process is performed by the next enlargement device 80.
  • the enlarging device 80 includes a reel 82 that winds and accommodates the corrugated tube 10 ⁇ / b> C subjected to the crosslinking treatment, a reel 88 on the downstream side thereof, a heating device 84 provided between the reels 82, 88, and the reels 82, 88. And a die 86 provided on the downstream side of the heating device 84.
  • a gas supply device for supplying a gas is connected to an end of the corrugated tube 10C on the reel 82 side, and the air for expanding the corrugated tube 10C is supplied into the corrugated tube 10C.
  • the heating device 84 includes a heater and the like, and is configured to be able to heat the corrugated tube 10 ⁇ / b> C drawn from the reel 82 to a temperature at which the diameter can be expanded.
  • the die 86 is a member in which an insertion hole 86h having an inner diameter larger than the outer diameter of the corrugated tube 10C is formed, and the outer diameter of the die 86 passes through the main insertion hole 86h in an enlarged state. The size is finished so as to be a size corresponding to the inner diameter of the insertion hole 86h.
  • the corrugated tube 10 ⁇ / b> C pulled out from the reel 82 is heated and softened by the heating device 84, and then expanded radially outward by the gas supplied to the corrugated tube 10 ⁇ / b> C. Sent to. Thereby, the heat-shrinkable corrugated tube 10B is finished so as to have a cylindrical shape having the same outer dimensions as the inner diameter of the insertion hole 86h. And this heat contraction corrugated tube 10B is wound up and accommodated by the reel 88 after cooling.
  • the configuration for expanding the corrugated tube 10C is not limited to the above example.
  • a configuration for vacuuming and expanding the outer peripheral portion of the corrugated tube 10C, a configuration for expanding the corrugated tube 10C by inserting a conical expanding jig into the corrugated tube 10C, and the like can be adopted.
  • 6 to 8 are explanatory views conceptually showing the state of the polymer of the heat-shrinkable corrugated tube in the steps (a1), (a2), and (a3).
  • step (a1) in the state immediately after the corrugated tube 10C is molded as in step (a1), as shown in FIG. 6, a plurality of polymers are present in a dispersed state.
  • the corrugated tube 10C is heated.
  • the heating temperature is a temperature below the melting point, although the corrugated tube 10C can be stretched.
  • the bridging structure is stretched while the corrugated tube shape is memorized.
  • the corrugated tube 10C is solidified in a state of being stretched into a cylindrical shape while including the bridging structure storing the corrugated tube shape, and the heat-shrinkable corrugated tube 10B before heat shrinking. Is manufactured.
  • the heat-shrinkable corrugated tube 10B can be easily manufactured.
  • FIG. 9 is a schematic view showing the wiring module 20 with a protective member.
  • the wiring module 20 with a protective member includes a wire harness 23 including a plurality of electric wires 22 (see FIG. 10 and the like) and a corrugated tube 10 as a protective member.
  • the wire harness 23 is formed by binding a plurality of electric wires 22 using a binding member such as an adhesive tape while branching.
  • a connector 24 is attached to the tip of each branch portion. And in the state which this wire harness 23 was assembled
  • the corrugated tube 10 as a protective member is attached to at least one (here, one) branch part 23a of the branch part.
  • the terminal at the end of the electric wire included in the branch portion 23 a is inserted into the cavity of the connector 24.
  • the connector 24 is attached to the front-end
  • the connector 24 is usually larger than the branch portion 23a.
  • the wire harness 23 includes at least one branch portion 23a having a connector 24 attached to an end (see FIG. 9).
  • the branch portion 23a (including at least one electric wire) of the wire harness 23 is passed through the heat shrink corrugated tube 10B before heat shrink (step b1). More specifically, the connector 24 and the branching portion 23a at the end are inserted into the opening on the one end side of the heat-shrinkable corrugated tube 10B from the connector 24 side and pushed in along the axial direction.
  • the branch portion 23a is passed through the heat-shrinkable corrugated tube 10B until the connector 24 comes out from the other end side opening of the heat-shrinkable corrugated tube 10B.
  • the heat-shrinkable corrugated tube 10B is heated and contracted by a heating device 99 such as a heater, and as shown in FIG. 12, the corrugated tube 10 is attached to the branch portion 23a.
  • the heat-shrinkable corrugated tube 10B is heat-shrinkable by heating at a temperature that is heat-shrinkable and lower than the melting temperature.
  • the heat-shrinkable corrugated tube 10B shrinks in diameter and heat-shrinks so as to exhibit a corrugated tube shape.
  • the corrugated tube-shaped corrugated tube 10 is attached to the branched portion 23a in a state of covering the branched portion 23a.
  • the branch portion 23a is passed as at least one electric wire through the heat-shrinkable corrugated tube 10B, and then the heat-shrinkable corrugated tube 10B is heated.
  • the heat-shrinkable corrugated tube 10B is heat-shrinked, and the corrugated tube 10 is attached to the branch portion 23a.
  • the branch part 23a can be passed through the heat-shrinkable corrugated tube 10B in a relatively thick state, and the corrugated tube 10 can be easily attached to the branch part 23a.
  • the connector 24 when the connector 24 is attached as an end part to the end of the branching portion 23a, the connector 24 is obstructive and is difficult to pass through the corrugated tube 10. Therefore, even in such a case, the branch portion 23a can be passed through the relatively thick heat-shrinkable corrugated tube 10B with the connector 24 attached, and the corrugated tube 10 can be easily attached to the branch portion 23a. can do.
  • the end part is not limited to the connector 24, and a relatively large terminal (such as a ground terminal) is assumed at the end of the electric wire.
  • the heat-shrinkable corrugated tube 10B when the heat-shrinkable corrugated tube 10B is heat-shrinked, the heat-shrinkable corrugated tube 10B as a protective member can be flexed flexibly because it is heat-shrinked until the corrugated tube shape is obtained. For this reason, it becomes possible to protect the branch portion 23a while making it bendable.
  • the protective member to which the heat-shrinkable corrugated tube 10B is attached by being heat-shrinked with respect to the wire harness 23 does not exhibit the corrugated tube shape but may be in a state of keeping the tubular shape. possible.
  • the protective member may or may not have a corrugated tube shape.
  • the heat-shrinkable corrugated tube 10B can be used for both applications.
  • an adhesive such as hot melt may adhere to the inside of the heat shrink corrugated tube 10B or the outer periphery of the wire harness 23.
  • the corrugated tube 10 can be held at a fixed position with respect to the wire harness 23.
  • entry of water and dust from the end of the corrugated tube can be suppressed.
  • the adhesive exists only inside the end portion of the corrugated tube and does not exist in the central portion in the extending direction of the corrugated tube. This is because the corrugated tube can be easily bent at the intermediate portion in the extending direction.
  • the adhesive may be present in the entire extending direction of the corrugated tube.
  • the corrugated tube can be firmly fixed to the wire harness.

Abstract

The purpose of the present invention is to facilitate mounting, on an electric wire or the like, a corrugated tube having no discontinuity along the entirety in the elongate direction of the corrugated tube. A heat-shrinkable corrugated tube according to the present invention is formed in a tubular shape, and is heat-shrinkable so as to exhibit a corrugated tube shape by heating. The heat-shrinkable corrugated tube is mounted on an electric wire or the like in the following manner, for example. At least one electric wire is passed through the heat-shrinkable corrugated tube not yet heat-shrunk. Then, the heat-shrinkable corrugated tube is caused to heat-shrink, whereby a protection member is mounted on said at least one electric wire. The heat-shrinkable corrugated tube is preferably caused to heat-shrink until exhibiting a corrugated tube shape.

Description

熱収縮コルゲートチューブ、熱収縮コルゲートチューブの製造方法及び保護部材付配線モジュールの製造方法Heat-shrinkable corrugated tube, method for producing heat-shrinkable corrugated tube, and method for producing a wiring module with a protective member
　この発明は、電線等を保護する技術に関する。 This invention relates to a technique for protecting electric wires and the like.
　特許文献１は、電線束の屈曲部に、ホットメルト層及び切り欠き部を形成した熱収縮チューブを外装し、この熱収縮チューブを熱収縮させる技術を開示している。 Patent Document 1 discloses a technique in which a heat-shrinkable tube having a hot melt layer and a notch is formed on the bent portion of a wire bundle, and the heat-shrinkable tube is thermally shrunk.
　特許文献２は、熱収縮チューブの周壁の一部に、所定の屈曲断面形状を維持可能な折りたたみ部を設ける構成を開示している。 Patent Document 2 discloses a configuration in which a folding portion capable of maintaining a predetermined bent cross-sectional shape is provided on a part of the peripheral wall of the heat-shrinkable tube.
　特許文献３は、切れ目を有するコルゲートチューブを開示している。特許文献３のコルゲートチューブには、これを筒状に維持する留め機構が設けられている。 Patent Document 3 discloses a corrugated tube having a cut. The corrugated tube of Patent Document 3 is provided with a fastening mechanism for maintaining it in a cylindrical shape.
特開平１１－１５４４２１号公報JP-A-11-154421 特開平１１－２３４８４６号公報Japanese Patent Laid-Open No. 11-234846 特開２０１４－１０７９９７号公報JP 2014-107997 A
　しかしながら、特許文献１及び２に開示の熱収縮チューブは、収縮した状態で自由に曲り難いという問題がある。 However, the heat-shrinkable tube disclosed in Patent Documents 1 and 2 has a problem that it is difficult to bend freely in a contracted state.
　これに対して、コルゲートチューブは容易に曲ることができる。しかしながら、特許文献３に開示のように、その延在方向に沿って切れ目を有するコルゲートチューブでは、コルゲートチューブを電線に装着する際に又は装着後に、切れ目から電線がはみ出て当該電線を挟み込んでしまう恐れがある。 In contrast, the corrugated tube can be bent easily. However, as disclosed in Patent Document 3, in the corrugated tube having a cut along the extending direction, the electric wire protrudes from the cut when the corrugated tube is attached to the electric wire or after the electric wire is inserted. There is a fear.
　なお、上記のような切れ目の無いコルゲートチューブを用いる場合には、電線をコルゲートチューブに通した後、電線の端部にコネクタ等の電線端末部品を取付ける必要がある。このため、コルゲートチューブの装着作業が困難となる。 In addition, when using the above-mentioned corrugated tube without a cut | interruption, after passing an electric wire through a corrugated tube, it is necessary to attach electric wire terminal parts, such as a connector, to the edge part of an electric wire. For this reason, the mounting | wearing operation | work of a corrugated tube becomes difficult.
　そこで、本発明は、その延在方向全体に沿う切れ目が形成されていないコルゲートチューブを、電線等に対して容易に装着できるようにすることを目的とする。 Therefore, an object of the present invention is to make it possible to easily attach a corrugated tube having no cut along the entire extending direction to an electric wire or the like.
　上記課題を解決するため、第１の態様に係る熱収縮コルゲートチューブは、筒形状に形成され、加熱によりコルゲートチューブ形状を呈するように熱収縮可能とされている。 In order to solve the above-described problem, the heat-shrinkable corrugated tube according to the first aspect is formed in a cylindrical shape and is heat-shrinkable so as to exhibit a corrugated tube shape by heating.
　第２の態様は、第１の態様に係る熱収縮コルゲートチューブであって、複数の重合体がコルゲートチューブ形状を記憶した状態で架橋した架橋構造を含み、前記架橋構造が前記コルゲートチューブ形状を記憶した状態のまま引き伸されているものである。 A 2nd aspect is a heat contraction corrugated tube which concerns on a 1st aspect, Comprising: The bridge | crosslinking structure in which the some polymer memorize | stored the corrugated tube shape was included, The said crosslinked structure memorize | stored the said corrugated tube shape It is stretched as it is.
　第３の態様に係る熱収縮コルゲートチューブの製造方法は、(a1)コルゲートチューブを金型成形する工程と、(a2)前記工程(a1)によって金型成形されたコルゲートチューブを、架橋処理する工程と、(a3)前記工程(a2)によって架橋処理されたコルゲートチューブを、その内部空間が大きくなるように引き伸す工程とを備える。 The method for manufacturing a heat-shrinkable corrugated tube according to the third aspect includes (a1) a step of molding the corrugated tube and (a2) a step of crosslinking the corrugated tube molded by the step (a1). And (a3) a step of stretching the corrugated tube cross-linked in the step (a2) so that its internal space becomes large.
　第４の態様に係る保護部材付配線モジュールの製造方法は、(b1)熱収縮コルゲートチューブに少なくとも１本の線状導体を通す工程と、(b2)前記(b1)の後、前記熱収縮コルゲートチューブを熱収縮させて、前記少なくとも１本の線状導体に保護部材を装着する工程とを備える。 A method for manufacturing a wiring module with a protective member according to a fourth aspect includes (b1) a step of passing at least one linear conductor through a heat-shrinkable corrugated tube, and (b2) the heat-shrinkable corrugated after (b1). Attaching the protective member to the at least one linear conductor by heat shrinking the tube.
　第５の態様は、第４の態様に係る保護部材付配線モジュールの製造方法であって、前記工程(b2)において、前記熱収縮コルゲートチューブがコルゲートチューブ形状を呈するまで熱収縮させている。 The fifth aspect is a method for manufacturing a wiring module with a protective member according to the fourth aspect, wherein in the step (b2), the heat shrinkable corrugated tube is heat shrunk until it exhibits a corrugated tube shape.
　第６の態様は、第４又は第５の態様に係る保護部材付配線モジュールの製造方法であって、前記工程(b1)において、前記少なくとも１本の線状導体の端部に端部部品が取付けられており、前記少なくとも１本の線状導体を前記端部部品側から前記熱収縮コルゲートチューブに通すようにしている。 A sixth aspect is a method for manufacturing a wiring module with a protective member according to the fourth or fifth aspect, wherein in the step (b1), an end part is provided at an end of the at least one linear conductor. The at least one linear conductor is passed through the heat-shrinkable corrugated tube from the end part side.
　第１又は第２の態様に係る熱収縮コルゲートチューブによると、熱収縮前の熱収縮コルゲートチューブに対して電線等を容易に挿通させることができる。そして、熱収縮コルゲートチューブを熱収縮させることで、これを電線等に対して容易に装着できる。従って、その延在方向全体に沿って切れ目が形成されていないコルゲートチューブを、電線等に対して容易に装着できる。 According to the heat-shrinkable corrugated tube according to the first or second aspect, an electric wire or the like can be easily inserted into the heat-shrinkable corrugated tube before heat-shrinking. And it can mount | wear easily with respect to an electric wire etc. by carrying out heat contraction of the heat contraction corrugated tube. Therefore, a corrugated tube in which no cut is formed along the entire extending direction can be easily attached to an electric wire or the like.
　第３の態様によると、筒形状に形成され、加熱により熱収縮すると共にコルゲートチューブ形状を呈する熱収縮コルゲートチューブを容易に製造することができる。 According to the third aspect, it is possible to easily manufacture a heat-shrinkable corrugated tube that is formed in a cylindrical shape and heat-shrinks by heating and exhibits a corrugated tube shape.
　第４の態様によると、最終的にコルゲートチューブ形状を呈するか否かに関わりなく、熱収縮コルゲートチューブを、保護部材として線状導体に対して容易に装着することができる。 According to the fourth aspect, the heat-shrinkable corrugated tube can be easily attached to the linear conductor as a protective member regardless of whether or not the corrugated tube shape is finally exhibited.
　第５の態様によると、保護部材がコルゲートチューブ形状を呈するため、容易に曲ることができる。 According to the fifth aspect, since the protective member has a corrugated tube shape, it can be easily bent.
　第６の態様によると、熱収縮コルゲートチューブは比較的内径が大きいため、端部部品が取付けられた状態のまま、少なくとも１本の線状導体を熱収縮コルゲートチューブに容易に通すことができる。 According to the sixth aspect, since the heat-shrinkable corrugated tube has a relatively large inner diameter, it is possible to easily pass at least one linear conductor through the heat-shrinkable corrugated tube while the end parts are attached.
熱収縮前の熱収縮コルゲートチューブを示す斜視図である。It is a perspective view which shows the heat contraction corrugate tube before heat contraction. 熱収縮後のコルゲートチューブを示す斜視図である。It is a perspective view which shows the corrugated tube after heat contraction. 熱収縮コルゲートチューブの製造方法を示す工程図である。It is process drawing which shows the manufacturing method of a heat contraction corrugated tube. 熱収縮コルゲートチューブの製造方法を示す工程図である。It is process drawing which shows the manufacturing method of a heat contraction corrugated tube. 熱収縮コルゲートチューブの製造方法を示す工程図である。It is process drawing which shows the manufacturing method of a heat contraction corrugated tube. 金型成型後のコルゲートチューブの重合体の状態を概念的に示す説明図である。It is explanatory drawing which shows notionally the state of the polymer of the corrugated tube after metal mold | die shaping | molding. 架橋処理後のコルゲートチューブの重合体の状態を概念的に示す説明図である。It is explanatory drawing which shows notionally the state of the polymer of the corrugated tube after a crosslinking process. 熱収縮コルゲートチューブの重合体の状態を概念的に示す説明図である。It is explanatory drawing which shows notionally the state of the polymer of a heat contraction corrugated tube. 保護部材付配線モジュールを示す概略図である。It is the schematic which shows a wiring module with a protection member. 保護部材付配線モジュールの製造工程を示す工程図である。It is process drawing which shows the manufacturing process of a wiring module with a protection member. 保護部材付配線モジュールの製造工程を示す工程図である。It is process drawing which shows the manufacturing process of a wiring module with a protection member. 保護部材付配線モジュールの製造工程を示す工程図である。It is process drawing which shows the manufacturing process of a wiring module with a protection member.
　実施形態に係る熱収縮コルゲートチューブ、熱収縮コルゲートチューブの製造方法及び保護部材付配線モジュールの製造方法について説明する。 DETAILED DESCRIPTION OF THE INVENTION A heat shrink corrugated tube, a method for producing a heat shrink corrugated tube, and a method for producing a wiring module with a protective member will be described.
　＜熱収縮コルゲートチューブ＞
　図１は熱収縮前の熱収縮コルゲートチューブ１０Ｂを示す斜視図であり、図２は熱収縮後のコルゲートチューブ１０を示す斜視図である。 <Heat-shrink corrugated tube>
FIG. 1 is a perspective view showing a heat-shrinkable corrugated tube 10B before heat shrinking, and FIG. 2 is a perspective view showing the corrugated tube 10 after heat shrinking.
　熱収縮コルゲートチューブ１０Ｂは、筒形状をなしている。熱収縮コルゲートチューブ１０Ｂには、その延在方向全体に沿う切れ目は形成されていない。ここでは、熱収縮コルゲートチューブ１０Ｂは、円筒状をなしているが、三角形筒状、四角形状等の多角形筒状をなしていてもよいし、楕円筒状をなしていてもよい。また、熱収縮コルゲートチューブ１０Ｂは、その延在方向において同じ大きさの断面形状が連続する筒形状に形成されている。もっとも、熱収縮コルゲートチューブ１０Ｂは、熱収縮後のコルゲートチューブ１０よりも段差が小さい程度で、熱収縮後のコルゲートチューブ１０の太環状部１２及び細環状部１４に応じた凹凸が形成されていてもよい。 The heat-shrink corrugated tube 10B has a cylindrical shape. The heat shrink corrugated tube 10B is not formed with a cut along the entire extending direction. Here, the heat-shrinkable corrugated tube 10B has a cylindrical shape, but may have a polygonal cylindrical shape such as a triangular cylindrical shape or a rectangular shape, or may have an elliptical cylindrical shape. The heat-shrinkable corrugated tube 10B is formed in a cylindrical shape in which cross-sectional shapes of the same size are continuous in the extending direction. Of course, the heat-shrinkable corrugated tube 10B has a level difference smaller than that of the corrugated tube 10 after heat shrinkage, and irregularities corresponding to the thick annular portion 12 and the thin annular portion 14 of the corrugated tube 10 after heat shrinkage are formed. Also good.
　熱収縮後のコルゲートチューブ１０は、コルゲートチューブ形状を呈している。このコルゲートチューブ１０にも、その延在方向に沿った切れ目であって当該延在方向全体に亘って存在するものは形成されていない。コルゲートチューブ１０は、その延在方向に沿って太環状部１２と細環状部１４とが交互に連続して設けられた筒状に形成されている。ここでは、太環状部１２と細環状部１４とは、それぞれ円形環状（チューブ１０の軸方向に対して直交する断面視が円形状）に形成されている。もっとも、コルゲートチューブ１０の断面形状は、円形状に限られず、楕円形、多角形状等でもよい。そして、コルゲートチューブ１０の内側には、電線等を配設可能な空間が存在している。すなわち、太環状部１２の内部空間と、細環状部１４の内部空間とが、コルゲートチューブ１０の延在方向に連続している。 The corrugated tube 10 after heat shrinkage has a corrugated tube shape. The corrugated tube 10 is also not formed with a cut along the extending direction and existing throughout the extending direction. The corrugated tube 10 is formed in a cylindrical shape in which large annular portions 12 and narrow annular portions 14 are provided alternately and continuously along the extending direction. Here, the thick annular portion 12 and the narrow annular portion 14 are each formed in a circular annular shape (a circular sectional view perpendicular to the axial direction of the tube 10). However, the cross-sectional shape of the corrugated tube 10 is not limited to a circular shape, and may be an elliptical shape, a polygonal shape, or the like. And inside the corrugated tube 10, the space which can arrange | position an electric wire etc. exists. That is, the internal space of the thick annular portion 12 and the internal space of the narrow annular portion 14 are continuous in the extending direction of the corrugated tube 10.
　上記太環状部１２と細環状部１４との間には、コルゲートチューブ１０の外周側から内周側に向う円盤状の介在部１３が存在している。介在部１３は、太環状部１２及び細環状部１４に対しても角をなして繋がっている。従って、コルゲートチューブ１０をその軸方向沿った断面で観察すると、矩形波が連続する形状を示す。もっとも、コルゲートチューブの軸方向に沿った断面は、サイン波又は三角波等が連続する形状であってもよい。コルゲートチューブ形状とは、太い環状部分と細い環状部分とがその軸方向に沿って交互に連続する形状全てを含む。 Between the thick annular portion 12 and the narrow annular portion 14, there is a disc-shaped interposition portion 13 that extends from the outer peripheral side to the inner peripheral side of the corrugated tube 10. The interposition part 13 is also connected to the thick annular part 12 and the narrow annular part 14 at an angle. Therefore, when the corrugated tube 10 is observed in a cross section along the axial direction, a shape in which rectangular waves are continuous is shown. But the cross section along the axial direction of a corrugated tube may be a shape where a sine wave or a triangular wave continues. The corrugated tube shape includes all shapes in which thick annular portions and thin annular portions are alternately continued along the axial direction.
　上記細環状部１４の内径寸法は、熱収縮前の熱収縮コルゲートチューブ１０Ｂの内径寸法よりも小さい。好ましくは、太環状部１２と細環状部１４との双方の内径寸法は、熱収縮前の熱収縮コルゲートチューブ１０Ｂの内径寸法よりも小さい。 The inner diameter of the narrow annular portion 14 is smaller than the inner diameter of the heat shrink corrugated tube 10B before heat shrink. Preferably, the inner diameter dimensions of both the thick annular portion 12 and the narrow annular portion 14 are smaller than the inner diameter dimension of the heat-shrinkable corrugated tube 10B before heat shrinking.
　本コルゲートチューブ１０は、太環状部１２と細環状部１４との間の段差周辺部分、ここでは、太環状部１２と介在部１３との間、細環状部１４と介在部１３との間、及び、介在部１３が弾性変形することで、容易に曲ることができる。 The corrugated tube 10 is a step peripheral portion between the thick annular portion 12 and the narrow annular portion 14, here, between the thick annular portion 12 and the interposed portion 13, between the narrow annular portion 14 and the interposed portion 13, And it can be easily bent because the interposition part 13 elastically deforms.
　上記熱収縮前の熱収縮コルゲートチューブ１０Ｂは、熱収縮後のコルゲートチューブ１０の形状を呈するように熱収縮することができる。すなわち、熱収縮コルゲートチューブ１０Ｂは、細くなる（ここでは、内径寸法を小さくする）と共に上記太環状部１２と細環状部１４とが交互に連続する形状となるように熱収縮することができる。ここで、熱収縮コルゲートチューブ１０Ｂが細くなる場合には、その延在方向全体が細くなる場合、及び、その延在方向の一部（例えば、細環状部１４に対応する部分）が細くなる場合を含む。 The heat-shrinkable corrugated tube 10B before heat shrinkage can be heat-shrinked so as to exhibit the shape of the corrugated tube 10 after heat-shrinking. That is, the heat-shrinkable corrugated tube 10B can be heat-shrinked so as to be thin (in this case, the inner diameter dimension is reduced) and to have a shape in which the thick annular portions 12 and the fine annular portions 14 are alternately continuous. Here, when the heat-shrinkable corrugated tube 10B becomes thin, when the whole extending direction becomes thin, and when a part of the extending direction (for example, a portion corresponding to the narrow annular portion 14) becomes thin. including.
　ここでは、熱収縮コルゲートチューブ１０Ｂは、架橋可能な重合体によって構成されており、後述するように、複数の重合体がコルゲートチューブ形状を記憶した状態で架橋した架橋構造を含み、この架橋構造がコルゲートチューブ形状を記憶した状態のまま引き伸ばされた構成とされている。適用可能な重合体としては、ポリエチレン、エチレン－酢酸ビニル共重合体に類するポリオレフィン樹脂、フッ素樹脂等を用いることができる。 Here, the heat-shrinkable corrugated tube 10B is made of a crosslinkable polymer, and includes a crosslinked structure in which a plurality of polymers memorize the corrugated tube shape as described later. It is set as the structure extended with the corrugated tube shape memorized. Examples of applicable polymers include polyethylene, polyolefin resins similar to ethylene-vinyl acetate copolymers, fluororesins, and the like.
　熱収縮コルゲートチューブ１０Ｂの内部には、ホットメルト等の接着剤が付着していることが好ましく、より好ましくは、それらが熱収縮コルゲートチューブの端部の内側のみに付着している。この接着剤は、取付対象となる線状部材に対してコルゲートチューブを接着する役割及び線状部材とコルゲートチューブとの間の隙間を塞ぐ役割を果す。 It is preferable that an adhesive such as hot melt is attached inside the heat-shrinkable corrugated tube 10B, and more preferably, they are attached only inside the end portion of the heat-shrinkable corrugated tube. This adhesive plays a role of adhering the corrugated tube to the linear member to be attached and a function of closing a gap between the linear member and the corrugated tube.
　このように構成された熱収縮コルゲートチューブ１０Ｂによると、熱収縮前の熱収縮コルゲートチューブ１０Ｂに対して電線等を容易に挿通させることができる。そして、熱収縮コルゲートチューブ１０Ｂを熱収縮させることで、熱収縮後のコルゲートチューブ１０を電線等に対して容易に装着できる。すなわち、その延在方向全体に沿って電線等挿入用の切れ目が形成されていないコルゲートチューブ１０を、電線等に対して容易に装着できる。 According to the heat-shrinkable corrugated tube 10B configured as described above, an electric wire or the like can be easily inserted into the heat-shrinkable corrugated tube 10B before heat-shrinking. And the heat-shrinkable corrugated tube 10B is heat-shrinked, so that the heat-shrinkable corrugated tube 10 can be easily attached to an electric wire or the like. That is, it is possible to easily attach the corrugated tube 10 in which no cut for inserting an electric wire or the like is formed along the entire extending direction to the electric wire or the like.
　また、熱収縮してコルゲートチューブ形状を呈するようになったコルゲートチューブ１０は容易に曲ることができる。このため、電線等を曲げ可能な状態に保ちつつ、当該電線等をコルゲートチューブ１０によって保護することができる。 Also, the corrugated tube 10 that has been heat-shrinked and has a corrugated tube shape can be easily bent. For this reason, the said electric wire etc. can be protected by the corrugated tube 10, keeping the electric wire etc. in the bendable state.
　また、従来、コルゲートチューブに切れ目を形成し、当該切れ目を通じて電線をコルゲートチューブ内に挿入していた。このため、従来では、切れ目を閉じた状態に維持するために、コルゲートチューブに粘着テープを巻回する作業等が必要となっていた。しかしながら、本熱収縮コルゲートチューブ１０Ｂによると、そのような切れ目を形成せずともよい。このため、従来のように、切れ目を閉じた状態に維持するための部材（粘着テープ等）及び作業を不要とすることができ、コルゲートチューブ１０の組付け作業の容易可及び材料費の削減等が可能となる。もっとも、コルゲートチューブの端部に、電線等に対する位置決めを行うために、粘着テープが巻回されてもよい。 Conventionally, a cut is formed in the corrugated tube, and the electric wire is inserted into the corrugated tube through the cut. For this reason, conventionally, in order to keep the cut line closed, an operation of winding an adhesive tape around the corrugated tube has been required. However, according to the heat-shrinkable corrugated tube 10B, such a cut need not be formed. This eliminates the need for a member (such as an adhesive tape) and work for maintaining the cut in a closed state as in the prior art, facilitates assembly work of the corrugated tube 10 and reduces material costs. Is possible. But in order to position with respect to an electric wire etc. in the edge part of a corrugated tube, an adhesive tape may be wound.
　＜熱収縮コルゲートチューブの製造方法＞
　上記熱収縮コルゲートチューブ１０Ｂの製造方法例について説明する。 <Method for producing heat-shrinkable corrugated tube>
An example of a method for manufacturing the heat-shrinkable corrugated tube 10B will be described.
　熱収縮コルゲートチューブ１０Ｂの製造方法は、コルゲートチューブ１０Ｃを金型成形する工程(a1)と、前記工程(a1)によって金型成形されたコルゲートチューブ１０Ｃを、架橋処理する工程(a2)と、前記工程(a2)によって架橋処理されたコルゲートチューブ１０Ｃを、その内部空間が大きくなるように引き伸す工程(a3)とを備える。 The method of manufacturing the heat-shrinkable corrugated tube 10B includes a step (a1) of molding the corrugated tube 10C, a step (a2) of crosslinking the corrugated tube 10C molded by the step (a1), A step (a3) of stretching the corrugated tube 10C subjected to the crosslinking treatment in the step (a2) so that the internal space thereof becomes large.
　図３は工程(a1)の一例を示す説明図である。この工程では、次に説明するコルゲートチューブ金型成形装置５０を用いてコルゲートチューブ１０Ｃが製造される。 FIG. 3 is an explanatory diagram showing an example of the step (a1). In this step, the corrugated tube 10C is manufactured using a corrugated tube mold forming apparatus 50 described below.
　すなわち、コルゲートチューブ金型成形装置５０は、押出機５２と、複数対の金型６０と、金型移動機構部６８とを備える。 That is, the corrugated tube mold forming apparatus 50 includes an extruder 52, a plurality of pairs of molds 60, and a mold moving mechanism unit 68.
　押出機５２は、溶融した樹脂材料５１を、先端に設けられたダイス５３とその内側に配設されたポイントとの隙間を通じて押し出し、筒状（ここでは略円筒状）に連続供給するように構成されている。押出機５２は、閉状態の一対の金型６０内に筒状の樹脂材料５１を押し出すため、ダイス５３の先端部が、成形路Ｒ中の上流位置で閉状態の一対の金型６０間に位置するように配設されている。 The extruder 52 is configured to extrude the molten resin material 51 through a gap between a die 53 provided at the tip and a point disposed inside thereof, and continuously supply the resin material 51 in a cylindrical shape (here, substantially cylindrical shape). Has been. Since the extruder 52 pushes the cylindrical resin material 51 into the pair of molds 60 in the closed state, the tip of the die 53 is located between the pair of molds 60 in the closed state at the upstream position in the molding path R. It arrange | positions so that it may be located.
　一対の金型６０は、突き合せて配置された閉状態で、コルゲートチューブ１０の外形状に対応した形状の金型面６２をそれぞれ有している。各金型面６２は、コルゲートチューブ１０の外表面形状を、その軸方向に沿った面で２分割した形状に形成されている。この一対の金型６０は複数対用意されている。 The pair of molds 60 each have a mold surface 62 having a shape corresponding to the outer shape of the corrugated tube 10 in a closed state in which they are arranged to face each other. Each mold surface 62 is formed in a shape obtained by dividing the outer surface shape of the corrugated tube 10 into two parts along the axial direction. A plurality of pairs of the molds 60 are prepared.
　金型移動機構部６８は、複数対の金型６０を、それぞれ、一対の無端環状の移動路に沿って移動させるように構成されている。そして、金型移動機構部６８は、移動路のうち一対の移動路が隣合う成形路Ｒで、各移動路に沿って移動される一対の金型６０を突き合わせた閉状態にしたまま、成形路Ｒの上流側から下流側に向けて移動させる。また、金型移動機構部６８は、移動路中の成形路Ｒ以外の位置では、一対の金型６０を離れさせた開状態で各移動路を移動させる。 The mold moving mechanism 68 is configured to move a plurality of pairs of molds 60 along a pair of endless annular moving paths. The mold moving mechanism unit 68 is a molding path R adjacent to the pair of movement paths, and the molding movement mechanism 68 is in a closed state in which the pair of molds 60 moved along each movement path are in contact with each other. Move from the upstream side of the path R toward the downstream side. The mold moving mechanism 68 moves each moving path in an open state in which the pair of molds 60 are separated at positions other than the molding path R in the moving path.
　例えば、金型移動機構部６８としては、複数の金型６０を無端環状のチェーンにそれぞれ連結し、モータにより歯車を回転させて当該チェーンを送ることにより、複数対の金型６０を移動させる構成を採用することができる。 For example, the mold moving mechanism unit 68 is configured to move a plurality of pairs of molds 60 by connecting a plurality of molds 60 to an endless annular chain and rotating the gears by a motor to send the chains. Can be adopted.
　なお、上記金型６０には、押出機５２から供給される樹脂材料５１を一対の金型６０の金型面６２に密着させる構成を有している。例えば、金型６０に樹脂材料５１を吸引する吸引孔が形成され、当該吸引孔から空気を吸引することによって、樹脂材料５１を金型面に吸着する構成（バキューム成形法）、或は、筒状に押出された樹脂材料５１内に空気を送込むことによって、当該樹脂材料５１を金型面６２に密着させる構成（ブロー成形法）、又はその両方を用いた構成が採用される。 The mold 60 has a configuration in which the resin material 51 supplied from the extruder 52 is in close contact with the mold surfaces 62 of the pair of molds 60. For example, a suction hole for sucking the resin material 51 is formed in the mold 60, and the resin material 51 is adsorbed to the mold surface by sucking air from the suction hole (vacuum molding method). A configuration in which the resin material 51 is brought into close contact with the mold surface 62 by blowing air into the extruded resin material 51 (blow molding method), or a configuration using both of them is employed.
　そして、樹脂材料５１が金型６０によってコルゲートチューブ１０と同形状を呈するコルゲートチューブ１０Ｃに金型成形され、これが連続的に送出される。このコルゲートチューブ１０Ｃは、空気又は液体等を用いた冷却部６６を経て冷却された後、リール６７に巻取って収容される。 The resin material 51 is molded by a mold 60 into a corrugated tube 10C having the same shape as the corrugated tube 10, and is continuously sent out. The corrugated tube 10 </ b> C is cooled through a cooling unit 66 using air, liquid, or the like, and then wound around a reel 67 and accommodated.
　図４は、工程(a2)を示す説明図である。 FIG. 4 is an explanatory view showing the step (a2).
　この工程(a2)では、工程(a1)によって金型成形されたコルゲートチューブ１０Ｃを、架橋処理する。この工程(a2)は、次の架橋処理装置７０によって架橋処理を施す。 In this step (a2), the corrugated tube 10C molded in the step (a1) is subjected to crosslinking treatment. In this step (a2), a crosslinking process is performed by the next crosslinking apparatus 70.
　すなわち、架橋処理装置７０は、金型成形されたコルゲートチューブ１０Ｃを巻取収容したリール７２と、その下流側のリール７８と、リール７２、７８間に設けられた電子線照射装置７４とを備える。電子線照射装置７４は、その照射窓から照射される電子線を、リール７２からリール７８に向けて送られるコルゲートチューブ１０Ｃに照射可能な位置及び姿勢で配設される。 That is, the cross-linking apparatus 70 includes a reel 72 that winds and accommodates a corrugated tube 10 </ b> C that is molded, a reel 78 on the downstream side, and an electron beam irradiation device 74 provided between the reels 72 and 78. . The electron beam irradiation device 74 is disposed at a position and posture capable of irradiating the corrugated tube 10 </ b> C sent from the reel 72 toward the reel 78 with the electron beam irradiated from the irradiation window.
　そして、金型成形されたコルゲートチューブ１０Ｃがリール７２から引出されリール７８に向う途中で、電子線に曝される。これにより、コルゲートチューブ１０Ｃの重合体が架橋し、当該架橋構造がコルゲートチューブ１０Ｃの形状を記憶する。このコルゲートチューブ１０Ｃは、下流側のリール７８によって巻取られる。 Then, the corrugated tube 10C that has been molded is drawn from the reel 72 and exposed to the electron beam on the way to the reel 78. Thereby, the polymer of the corrugated tube 10C is crosslinked, and the crosslinked structure stores the shape of the corrugated tube 10C. The corrugated tube 10 </ b> C is taken up by a reel 78 on the downstream side.
　なお、ここでは、電子線によってコルゲートチューブ１０Ｃの架橋処理がなされるが、架橋処理は、その他の放射線架橋処理、又は、化学架橋処理等によってなされてもよい。 Here, although the corrugated tube 10C is subjected to crosslinking treatment with an electron beam, the crosslinking treatment may be performed by other radiation crosslinking treatment, chemical crosslinking treatment, or the like.
　図５は工程(a3)を示す説明図である。この工程(a3)では、工程(a2)によって架橋処理されたコルゲートチューブ１０Ｃを、その内部空間が大きくなるように引き伸す。この工程(a3)は、次の拡大装置８０によって引き伸し処理を行う。 FIG. 5 is an explanatory view showing the step (a3). In this step (a3), the corrugated tube 10C cross-linked in the step (a2) is stretched so that its internal space becomes large. In this step (a3), the enlargement process is performed by the next enlargement device 80.
　拡大装置８０は、架橋処理されたコルゲートチューブ１０Ｃを巻取収容したリール８２と、その下流側のリール８８と、リール８２、８８の間に設けられた加熱装置８４と、リール８２、８８の間であって加熱装置８４の下流側に設けられたダイ８６とを備える。 The enlarging device 80 includes a reel 82 that winds and accommodates the corrugated tube 10 </ b> C subjected to the crosslinking treatment, a reel 88 on the downstream side thereof, a heating device 84 provided between the reels 82, 88, and the reels 82, 88. And a die 86 provided on the downstream side of the heating device 84.
　コルゲートチューブ１０Ｃのリール８２側の端部等には、気体を供給するための気体供給装置が連結されており、コルゲートチューブ１０Ｃ内には当該コルゲートチューブ１０Ｃを拡大させるための空気が供給されている。加熱装置８４は、ヒーター等を有しており、リール８２から引出されたコルゲートチューブ１０Ｃを拡径可能な温度に加熱可能に構成されている。ダイ８６は、コルゲートチューブ１０Ｃの外径寸法よりも大きな内径寸法の挿通孔８６ｈが形成された部材であり、コルゲートチューブ１０Ｃが拡大された状態で本挿通孔８６ｈ内を通ることで、その外径寸法が当該挿通孔８６ｈの内径寸法に応じた大きさとなるように仕上げられる。 A gas supply device for supplying a gas is connected to an end of the corrugated tube 10C on the reel 82 side, and the air for expanding the corrugated tube 10C is supplied into the corrugated tube 10C. . The heating device 84 includes a heater and the like, and is configured to be able to heat the corrugated tube 10 </ b> C drawn from the reel 82 to a temperature at which the diameter can be expanded. The die 86 is a member in which an insertion hole 86h having an inner diameter larger than the outer diameter of the corrugated tube 10C is formed, and the outer diameter of the die 86 passes through the main insertion hole 86h in an enlarged state. The size is finished so as to be a size corresponding to the inner diameter of the insertion hole 86h.
　そして、リール８２から引出されたコルゲートチューブ１０Ｃは、加熱装置８４にて加熱されて軟化された後、その内部に供給された気体によってその径方向外側に拡大されつつ、ダイ８６の挿通孔８６ｈ内に送込まれる。これにより、熱収縮コルゲートチューブ１０Ｂは、挿通孔８６ｈの内径寸法と同じ外形寸法の筒形状となるように仕上げられる。そして、この熱収縮コルゲートチューブ１０Ｂは、冷却後、リール８８によって巻取って収容される。 The corrugated tube 10 </ b> C pulled out from the reel 82 is heated and softened by the heating device 84, and then expanded radially outward by the gas supplied to the corrugated tube 10 </ b> C. Sent to. Thereby, the heat-shrinkable corrugated tube 10B is finished so as to have a cylindrical shape having the same outer dimensions as the inner diameter of the insertion hole 86h. And this heat contraction corrugated tube 10B is wound up and accommodated by the reel 88 after cooling.
　コルゲートチューブ１０Ｃを拡大させる構成は、上記例に限られない。例えば、コルゲートチューブ１０Ｃの外周部をバキュームして拡大させる構成、コルゲートチューブ１０Ｃ内に円錐状の拡大治具を挿入して、コルゲートチューブ１０Ｃを拡大させる構成等を採用することができる。 The configuration for expanding the corrugated tube 10C is not limited to the above example. For example, a configuration for vacuuming and expanding the outer peripheral portion of the corrugated tube 10C, a configuration for expanding the corrugated tube 10C by inserting a conical expanding jig into the corrugated tube 10C, and the like can be adopted.
　図６～図８は、工程(a1)、(a2)、(a3)において、熱収縮コルゲートチューブの重合体の状態を概念的に示す説明図である。 6 to 8 are explanatory views conceptually showing the state of the polymer of the heat-shrinkable corrugated tube in the steps (a1), (a2), and (a3).
　まず、工程(a1)のように、コルゲートチューブ１０Ｃが金型成形された直後の状態では、図６に示すように、複数の重合体は、ばらばらな状態で存在している。 First, in the state immediately after the corrugated tube 10C is molded as in step (a1), as shown in FIG. 6, a plurality of polymers are present in a dispersed state.
　この状態で、工程(b2）によって架橋処理を施すと、図７に示すように、複数の重合体が、その時の形状、即ち、コルゲートチューブ形状を記憶した状態で架橋し、もって、コルゲートチューブ形状を記憶した架橋構造を得ることができる。 In this state, when the cross-linking treatment is performed by the step (b2), as shown in FIG. 7, a plurality of polymers are cross-linked in a state where the shape at that time, that is, the corrugated tube shape is memorized. Can be obtained.
　この後、コルゲートチューブ１０Ｃを加熱する。加熱温度は、コルゲートチューブ１０Ｃを引き伸すことができるが、溶融点未満の温度である。すると、図８に示すように、前記架橋構造がコルゲートチューブ形状を記憶した状態のまま引き伸されることになる。この後、コルゲートチューブ１０Ｃを引き伸したものが冷却されると、コルゲートチューブ形状を記憶した架橋構造を含んだまま筒形状に引き伸された状態で固化し、熱収縮前の熱収縮コルゲートチューブ１０Ｂが製造される。 Thereafter, the corrugated tube 10C is heated. The heating temperature is a temperature below the melting point, although the corrugated tube 10C can be stretched. Then, as shown in FIG. 8, the bridging structure is stretched while the corrugated tube shape is memorized. After this, when the expanded one of the corrugated tube 10C is cooled, the corrugated tube 10C is solidified in a state of being stretched into a cylindrical shape while including the bridging structure storing the corrugated tube shape, and the heat-shrinkable corrugated tube 10B before heat shrinking. Is manufactured.
　これにより、上記熱収縮コルゲートチューブ１０Ｂを容易に製造することができる。 Thereby, the heat-shrinkable corrugated tube 10B can be easily manufactured.
　＜保護部材付配線モジュールの製造方法＞
　熱収縮コルゲートチューブ１０Ｂの用途の一例として、上記コルゲートチューブ１０を電線２２に装着して保護部材付配線モジュール２０を製造する例について説明する。 <Method for manufacturing wiring module with protective member>
As an example of the application of the heat-shrinkable corrugated tube 10B, an example in which the corrugated tube 10 is attached to the electric wire 22 to manufacture the wiring module 20 with a protective member will be described.
　図９は保護部材付配線モジュール２０を示す概略図である。 FIG. 9 is a schematic view showing the wiring module 20 with a protective member.
　この保護部材付配線モジュール２０は、複数の電線２２（図１０等参照）を含むワイヤーハーネス２３と、保護部材としてのコルゲートチューブ１０とを備える。 The wiring module 20 with a protective member includes a wire harness 23 including a plurality of electric wires 22 (see FIG. 10 and the like) and a corrugated tube 10 as a protective member.
　ワイヤーハーネス２３は、複数の電線２２が分岐しつつ粘着テープ等の結束部材を用いて結束されたものである。各分岐部分の先端部には、コネクタ２４が取付けられている。そして、本ワイヤーハーネス２３が車両に組付けられた状態で、コネクタ２４が車両に搭載された各種電気部品に接続される。これにより、車両に搭載された各種電気部品が本ワイヤーハーネス２３を通じて電気的に接続される。 The wire harness 23 is formed by binding a plurality of electric wires 22 using a binding member such as an adhesive tape while branching. A connector 24 is attached to the tip of each branch portion. And in the state which this wire harness 23 was assembled | attached to the vehicle, the connector 24 is connected to the various electrical components mounted in the vehicle. Thereby, various electrical components mounted on the vehicle are electrically connected through the wire harness 23.
　上記分岐部分の少なくとも１つ（ここでは１つ）の分岐部分２３ａに、保護部材としてのコルゲートチューブ１０が装着される。分岐部分２３ａに含まれる電線の端部の端子は、コネクタ２４のキャビティに挿入されている。これにより、分岐部分２３ａの先端部に端部部品としてコネクタ２４が取付けられている。コネクタ２４は、通常、分岐部分２３ａよりも大きい。 The corrugated tube 10 as a protective member is attached to at least one (here, one) branch part 23a of the branch part. The terminal at the end of the electric wire included in the branch portion 23 a is inserted into the cavity of the connector 24. Thereby, the connector 24 is attached to the front-end | tip part of the branch part 23a as an edge part component. The connector 24 is usually larger than the branch portion 23a.
　上記保護部材付配線モジュール２０の製造方法について説明する。 A method for manufacturing the wiring module 20 with the protective member will be described.
　まず、複数の電線が分岐しつつ結束されたワイヤーハーネス２３を準備する。ワイヤーハーネス２３は、端部にコネクタ２４が取付けられた分岐部分２３ａを少なくとも１つ含む（図９参照）。 First, a wire harness 23 in which a plurality of electric wires are branched and bundled is prepared. The wire harness 23 includes at least one branch portion 23a having a connector 24 attached to an end (see FIG. 9).
　そして、図１０に示すように、上記ワイヤーハーネス２３の分岐部分２３ａ（少なくとも１つの電線を含む）を、熱収縮前の熱収縮コルゲートチューブ１０Ｂに通す(工程b1)。より具体的には、端部のコネクタ２４及び分岐部分２３ａを、そのコネクタ２４側から熱収縮コルゲートチューブ１０Ｂの一端側開口に挿入してその軸方向に沿って押込んでいく。ここでは、コネクタ２４が熱収縮コルゲートチューブ１０Ｂの他端側開口から外方に出るまで、分岐部分２３ａを熱収縮コルゲートチューブ１０Ｂ内に通す。 Then, as shown in FIG. 10, the branch portion 23a (including at least one electric wire) of the wire harness 23 is passed through the heat shrink corrugated tube 10B before heat shrink (step b1). More specifically, the connector 24 and the branching portion 23a at the end are inserted into the opening on the one end side of the heat-shrinkable corrugated tube 10B from the connector 24 side and pushed in along the axial direction. Here, the branch portion 23a is passed through the heat-shrinkable corrugated tube 10B until the connector 24 comes out from the other end side opening of the heat-shrinkable corrugated tube 10B.
　この工程(b1)の後、図１１に示すように、熱収縮コルゲートチューブ１０Ｂをヒーター等の加熱装置９９によって加熱して収縮させて、図１２に示すように、分岐部分２３ａにコルゲートチューブ１０を装着する。ここでは、熱収縮コルゲートチューブ１０Ｂを、熱収縮可能な温度であって溶融する温度よりも低い温度で加熱することによって熱収縮する。これにより、熱収縮コルゲートチューブ１０Ｂが、縮径すると共にコルゲートチューブ形状を呈するように熱収縮する。これにより、コルゲートチューブ形状のコルゲートチューブ１０が分岐部分２３ａを覆った状態で、当該分岐部分２３ａに装着される。 After this step (b1), as shown in FIG. 11, the heat-shrinkable corrugated tube 10B is heated and contracted by a heating device 99 such as a heater, and as shown in FIG. 12, the corrugated tube 10 is attached to the branch portion 23a. Installing. Here, the heat-shrinkable corrugated tube 10B is heat-shrinkable by heating at a temperature that is heat-shrinkable and lower than the melting temperature. As a result, the heat-shrinkable corrugated tube 10B shrinks in diameter and heat-shrinks so as to exhibit a corrugated tube shape. Thereby, the corrugated tube-shaped corrugated tube 10 is attached to the branched portion 23a in a state of covering the branched portion 23a.
　以上のように構成された保護部材付配線モジュール２０の製造方法によると、熱収縮コルゲートチューブ１０Ｂに、少なくとも１本の電線として分岐部分２３ａを通し、この後、熱収縮コルゲートチューブ１０Ｂを加熱して熱収縮コルゲートチューブ１０Ｂを熱収縮させて、分岐部分２３ａにコルゲートチューブ１０を装着している。このため、比較的太い状態の熱収縮コルゲートチューブ１０Ｂに分岐部分２３ａを通すことができ、コルゲートチューブ１０を分岐部分２３ａに容易に装着することができる。 According to the manufacturing method of the wiring module 20 with a protective member configured as described above, the branch portion 23a is passed as at least one electric wire through the heat-shrinkable corrugated tube 10B, and then the heat-shrinkable corrugated tube 10B is heated. The heat-shrinkable corrugated tube 10B is heat-shrinked, and the corrugated tube 10 is attached to the branch portion 23a. For this reason, the branch part 23a can be passed through the heat-shrinkable corrugated tube 10B in a relatively thick state, and the corrugated tube 10 can be easily attached to the branch part 23a.
　特に、分岐部分２３ａの端部に端部部品としてコネクタ２４が取付けられていると、当該コネクタ２４が邪魔となって、コルゲートチューブ１０に通し難い。そこで、このような場合にも、比較的太い状態の熱収縮コルゲートチューブ１０Ｂに、分岐部分２３ａを、コネクタ２４を取付けた状態のまま通すことができ、コルゲートチューブ１０を分岐部分２３ａに容易に装着することができる。 Particularly, when the connector 24 is attached as an end part to the end of the branching portion 23a, the connector 24 is obstructive and is difficult to pass through the corrugated tube 10. Therefore, even in such a case, the branch portion 23a can be passed through the relatively thick heat-shrinkable corrugated tube 10B with the connector 24 attached, and the corrugated tube 10 can be easily attached to the branch portion 23a. can do.
　なお、端部部品としては、コネクタ２４に限られず、電線の端部に比較的大型の端子（アース用の端子等）が想定される。 Note that the end part is not limited to the connector 24, and a relatively large terminal (such as a ground terminal) is assumed at the end of the electric wire.
　また、熱収縮コルゲートチューブ１０Ｂを熱収縮する際に、コルゲートチューブ形状を呈するまで熱収縮させているため、保護部材としてのコルゲートチューブ１０は柔軟に曲ることができる。このため、分岐部分２３ａを曲げ可能にしつつ保護することが可能となる。 Further, when the heat-shrinkable corrugated tube 10B is heat-shrinked, the heat-shrinkable corrugated tube 10B as a protective member can be flexed flexibly because it is heat-shrinked until the corrugated tube shape is obtained. For this reason, it becomes possible to protect the branch portion 23a while making it bendable.
　もっとも、分岐部分２３ａの外径寸法が、熱収縮コルゲートチューブ１０Ｂの熱収縮後の最小外形寸法よりも大きい場合等には、熱収縮コルゲートチューブ１０Ｂが熱収縮してもコルゲートチューブ形状を呈するまで熱収縮できない場合があり得る。この場合、ワイヤーハーネス２３に対して、熱収縮コルゲートチューブ１０Ｂが熱収縮して装着されることになった保護部材は、コルゲートチューブ形状を呈さず、筒形状を保ったままの状態であることもあり得る。 Of course, when the outer diameter of the branch portion 23a is larger than the minimum outer dimension of the heat-shrinkable corrugated tube 10B after heat shrinkage, the heat shrinks until the heat-shrinkable corrugated tube 10B has a corrugated tube shape even when heat-shrinked. It may not be able to shrink. In this case, the protective member to which the heat-shrinkable corrugated tube 10B is attached by being heat-shrinked with respect to the wire harness 23 does not exhibit the corrugated tube shape but may be in a state of keeping the tubular shape. possible.
　本保護部材付配線モジュール２０の製造方法は、保護部材がコルゲートチューブ形状を呈することも、呈さないこともあり得る。また、熱収縮コルゲートチューブ１０Ｂは、その両方の用途で使用されることがあり得る。 In the manufacturing method of the wiring module 20 with a protective member, the protective member may or may not have a corrugated tube shape. Further, the heat-shrinkable corrugated tube 10B can be used for both applications.
　なお、上記熱収縮コルゲートチューブ１０Ｂの内部又はワイヤーハーネス２３の外周に、ホットメルト等の接着剤が付着していてもよい。これにより、コルゲートチューブ１０をワイヤーハーネス２３に対して一定位置に保持することができる。また、コルゲートチューブの端部からの水及び埃の進入を抑制することができる。 It should be noted that an adhesive such as hot melt may adhere to the inside of the heat shrink corrugated tube 10B or the outer periphery of the wire harness 23. Thereby, the corrugated tube 10 can be held at a fixed position with respect to the wire harness 23. In addition, entry of water and dust from the end of the corrugated tube can be suppressed.
　接着剤は、コルゲートチューブの端部の内側のみに存在し、コルゲートチューブの延在方向中央部には存在していないことが好ましい。これにより、コルゲートチューブがその延在方向中間部で容易に曲ることができるからである。 It is preferable that the adhesive exists only inside the end portion of the corrugated tube and does not exist in the central portion in the extending direction of the corrugated tube. This is because the corrugated tube can be easily bent at the intermediate portion in the extending direction.
　もっとも、接着剤は、コルゲートチューブの延在方向全体に存在していてもよい。この場合、コルゲートチューブを強固にワイヤーハーネスに対して固定することが可能となる。また、コルゲートチューブ内への水及び埃の侵入をより確実に抑制することが可能となる。 However, the adhesive may be present in the entire extending direction of the corrugated tube. In this case, the corrugated tube can be firmly fixed to the wire harness. In addition, it is possible to more reliably suppress water and dust from entering the corrugated tube.
　なお、電線に代えて裸銅線等の線状導体が、熱収縮コルゲートチューブ１０Ｂ内に挿通され、その後、熱収縮コルゲートチューブ１０Ｂが熱収縮してもよい。これにより、線状導体を直接的にコルゲートチューブ１０が覆う保護部材付配線モジュールを得ることができる。 In addition, it replaces with an electric wire and linear conductors, such as a bare copper wire, are penetrated in the heat-shrinkable corrugated tube 10B, and the heat-shrinkable corrugated tube 10B may heat-shrink after that. Thereby, the wiring module with a protective member which directly covers the linear conductor with the corrugated tube 10 can be obtained.
　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。 Although the present invention has been described in detail as described above, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.
　１０，１０Ｂ，１０Ｃ　熱収縮コルゲートチューブ
　１２　太環状部
　１４　細環状部
　２０　保護部材付配線モジュール
　２２　電線
　２３　ワイヤーハーネス
　２４　コネクタ
　５０　コルゲートチューブ金型成形装置
　７０　架橋処理装置
　７４　電子線照射装置
　８０　拡大装置 10, 10B, 10C Heat-shrinkable corrugated tube 12 Thick annular portion 14 Thin annular portion 20 Wiring module with protective member 22 Electric wire 23 Wire harness 24 Connector 50 Corrugated tube mold forming device 70 Cross-linking processing device 74 Electron beam irradiation device 80 Enlarging device

Claims (6)

  1. 　筒形状に形成され、加熱によりコルゲートチューブ形状を呈するように熱収縮可能な熱収縮コルゲートチューブ。 A heat-shrinkable corrugated tube that is formed into a cylindrical shape and is heat-shrinkable so as to exhibit a corrugated tube shape upon heating.
  2. 　請求項１に記載の熱収縮コルゲートチューブであって、
    　複数の重合体がコルゲートチューブ形状を記憶した状態で架橋した架橋構造を含み、前記架橋構造が前記コルゲートチューブ形状を記憶した状態のまま引き伸されている、熱収縮コルゲートチューブ。     The heat-shrinkable corrugated tube according to claim 1,
    A heat-shrinkable corrugated tube comprising a crosslinked structure in which a plurality of polymers are crosslinked in a state in which the corrugated tube shape is memorized, and the crosslinked structure is stretched in a state in which the corrugated tube shape is memorized.
  3. 　(a1)コルゲートチューブを金型成形する工程と、
    　(a2)前記工程(a1)によって金型成形されたコルゲートチューブを、架橋処理する工程と、
    　(a3)前記工程(a2)によって架橋処理されたコルゲートチューブを、その内部空間が大きくなるように引き伸す工程と、
    　を備える熱収縮コルゲートチューブの製造方法。     (a1) a step of molding the corrugated tube,
    (a2) a step of crosslinking the corrugated tube molded in the step (a1), and
    (a3) a step of stretching the corrugated tube cross-linked by the step (a2) so that the internal space becomes larger;
    A method for manufacturing a heat-shrinkable corrugated tube.
  4. 　(b1)熱収縮コルゲートチューブに少なくとも１本の線状導体を通す工程と、
    　(b2)前記(b1)の後、前記熱収縮コルゲートチューブを熱収縮させて、前記少なくとも１本の線状導体に保護部材を装着する工程と、
    　を備える保護部材付配線モジュールの製造方法。     (b1) passing at least one linear conductor through the heat-shrinkable corrugated tube;
    (b2) After (b1), heat shrinking the heat shrink corrugated tube, and attaching a protective member to the at least one linear conductor;
    A method for manufacturing a wiring module with a protective member comprising:
  5. 　請求項４に記載の保護部材付配線モジュールの製造方法であって、
    　前記工程(b2)において、前記熱収縮コルゲートチューブがコルゲートチューブ形状を呈するまで熱収縮させる、保護部材付配線モジュールの製造方法。     It is a manufacturing method of the wiring module with a protection member according to claim 4,
    A method for manufacturing a wiring module with a protective member, wherein in the step (b2), the heat shrinkable corrugated tube is thermally shrunk until it exhibits a corrugated tube shape.
  6. 　請求項４又は請求項５に記載の保護部材付配線モジュールの製造方法であって、
    　前記工程(b1)において、前記少なくとも１本の線状導体の端部に端部部品が取付けられており、前記少なくとも１本の線状導体を前記端部部品側から前記熱収縮コルゲートチューブに通す、保護部材付配線モジュールの製造方法。     It is a manufacturing method of the wiring module with a protection member according to claim 4 or 5,
    In the step (b1), an end part is attached to an end of the at least one linear conductor, and the at least one linear conductor is passed through the heat-shrinkable corrugated tube from the end part side. The manufacturing method of the wiring module with a protection member.
PCT/JP2015/072443 2014-08-22 2015-08-07 Heat-shrinkable corrugated tube, production method for heat-shrinkable corrugated tube, and production method for wiring module with protection member WO2016027690A1 (en)

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CN114944256A (en) * 2021-02-15 2022-08-26 矢崎总业株式会社 Wire harness and method of manufacturing wire harness

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JP6613973B2 (en) 2016-03-10 2019-12-04 株式会社デンソー Fuel injection device

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JPH0560125U (en) * 1992-01-10 1993-08-06 矢崎総業株式会社 Tube for wire harness
JP2006104395A (en) * 2004-10-08 2006-04-20 Sumitomo Electric Fine Polymer Inc Resin composition and insulating wire, wire and cable, tubing and heat-shrinkable tubing using the same
JP2015019527A (en) * 2013-07-12 2015-01-29 住友電装株式会社 Protective material for wiring harness, and protective structure for wiring harness

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Publication number Priority date Publication date Assignee Title
JPH0560125U (en) * 1992-01-10 1993-08-06 矢崎総業株式会社 Tube for wire harness
JP2006104395A (en) * 2004-10-08 2006-04-20 Sumitomo Electric Fine Polymer Inc Resin composition and insulating wire, wire and cable, tubing and heat-shrinkable tubing using the same
JP2015019527A (en) * 2013-07-12 2015-01-29 住友電装株式会社 Protective material for wiring harness, and protective structure for wiring harness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114944256A (en) * 2021-02-15 2022-08-26 矢崎总业株式会社 Wire harness and method of manufacturing wire harness

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