CN108000911A - 配线一体型树脂管及其制造方法 - Google Patents

配线一体型树脂管及其制造方法 Download PDF

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Publication number
CN108000911A
CN108000911A CN201710870165.8A CN201710870165A CN108000911A CN 108000911 A CN108000911 A CN 108000911A CN 201710870165 A CN201710870165 A CN 201710870165A CN 108000911 A CN108000911 A CN 108000911A
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China
Prior art keywords
block
distribution
slit
shape
conducting wire
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Granted
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CN201710870165.8A
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CN108000911B (zh
Inventor
西野彰马
森本隆志
峰英生
田中雅史
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B29D23/003—Pipe joints, e.g. straight joints
    • B29D23/005—Pipe joints, e.g. straight joints provided with electrical wiring
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    • F16L9/006—Rigid pipes specially profiled
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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    • 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
    • H02G3/0462—Tubings, i.e. having a closed section
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • 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
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/125—Rigid pipes of plastics with or without reinforcement electrically conducting

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Abstract

本发明的目的在于提供同时实现轻型和生产性的配线一体型树脂管。本发明的配线一体型树脂管具有：管形状片(7)，其以在短边方向(X)的两端之间形成有狭缝(6)的方式隔开间隔地形成为大致管形状；配线单元(8)，其在比狭缝(6)靠内侧的位置沿着狭缝(6)的长度方向配设于管形状片(7)；以及树脂材料(9)，其填充至由管形状片(7)的狭缝(6)的对置面与配线单元(8)构成的间隙，将管形状片(7)的狭缝(6)的对置面密闭，在配线单元(8)的内侧沿长度方向(Y)铺设有配线用的导线(10)。

Description

配线一体型树脂管及其制造方法
技术领域
本发明涉及一体地铺设有电气配线用的导线的配线一体型树脂管。
背景技术
对于配线一体型树脂管，通常采用通过例如注射成形或者挤出成形等而成形，从而得到目标直径以及长度的方法。对于电气配线用的导线的覆盖方法，例如通过向挤出成形机的前端的十字头部插入所述导线，从而随着挤出成形，一边使覆盖用树脂覆盖所述导线的周围一边进行成形。
在将上述以往技术组合，通过挤出成形而成形配线一体型的树脂管时，能够容易地想象能通过向前端的十字头插入导线来制造在管中配置有导线的树脂管。
然而，对于通过将上述记载组合而成的方法制造的配线一体型树脂管而言，在将树脂管切断为任意的长度时，树脂管内的配线也同样被切断，树脂管的端面与配线的端面在同一面排列，因此存在与外部的导通、端子的附加、端子的连接非常困难的课题。
针对上述的课题，开发了专利文献1所示的方法。图23、图24示出专利文献1所记载的管与配线的一体化方法。
图23示出槽加工前的公称直径(管的内径)200mm用的内筒构件41，该内筒构件41呈大致圆筒状且内径D约为218mm，壁厚t为5mm。在两端外表面具有供连接器销安装的基座42a、42b，该基座42a、42b由聚乙烯等热塑性树脂构成。
在该内筒构件41中机械加工出图24所示的螺旋状的槽43。然后，在槽43内卷绕电热丝，连接连接器销并将其安装于基座42a、42b。然后，另外通过注射成形一体地成形外筒构件，从而完成电熔敷式塑料管接头。
在先技术文献
专利文献
专利文献1：日本特开平6-341587号公报
然而，在所述以往的结构中，需要在与配线所需的连接器销间的距离相应地在管的整周上实施槽加工后，沿着槽卷绕导线。另外，需要在将配线卷绕于加工出槽的内筒后，与所需的距离相应地成形能够覆盖配线的外筒。因此，具有最终的管厚度变大而使重量变重的课题、以及到管完成为止的制造时间增长而使生产性变得非常低的课题。
发明内容
发明所要解决的课题
本发明解决所述以往的课题，其目的在于提供同时实现轻型和生产性的配线一体型的树脂管。
用于解决课题的方案
本发明的配线一体型树脂管的特征在于，具有：管形状片，其以在短边方向的两端之间形成有狭缝的方式隔开间隔地形成为大致管形状；配线单元，其在比所述狭缝靠内侧的位置沿着所述狭缝的长度方向配置于所述管形状片；以及树脂材料，其填充至由所述管形状片的所述狭缝的对置面与所述配线单元构成的间隙，将所述管形状片的所述狭缝的对置面密闭，在所述配线单元的内侧沿所述长度方向铺设有配线用的导线。
另外，本发明的配线一体型树脂管的制造方法的特征在于，将形状为长方形的热塑性片以在短边方向的两端之间形成有狭缝的方式隔开间隔地配置为大致管形状，将沿长度方向铺设有配线用的导线的配线单元在比所述狭缝靠内侧的位置沿着所述狭缝的长度方向配置于所述热塑性片，向由所述热塑性片的所述狭缝的对置面与所述配线单元构成的间隙填充树脂材料，使所述热塑性片与所述配线单元一体化。
发明效果
对于该结构的配线一体型树脂管，关于管的厚度以及重量，也不存在因外周覆盖造成的厚度的增加，因此能够在最初以目标的片厚度进行成形，能够得到大幅轻量的管。
另外，无需遍及配线的所需距离整周来卷绕导线，不需要卷绕后的导线覆盖工序，因此能够削减直至产品完成的工时。
根据该结构，能够高生产性、高成品率且廉价地供给使用了热塑性多层纤维强化片的轻型且配线被一体化的树脂管。
附图说明
图1是本发明的实施方式1的配线一体型树脂管的端部的立体图。
图2是该实施方式的配线一体型树脂管的(a)长度方向的剖视图和(b)其A-A剖视图。
图3是该实施方式的(a)保持架的长度方向的剖视图和(b)其B-B剖视图。
图4是电动吸尘器的外观图。
图5是该实施方式的配线一体型树脂管的立体图。
图6是该实施方式的配线一体型树脂管的成形过程中使用的注射成形装置的开模状态的说明图。
图7是该实施方式的配线一体型树脂管的成形过程中使用的注射成形装置的合模状态的说明图。
图8是(a)将配线单元安装于注射成形装置的芯棒之前的剖视图和芯棒的侧视图、以及(b)将配线单元安装于芯棒之后的状态的剖视图及其C-C剖视图。
图9是示出滑动芯23a、23b的接合用间隙26的放大图。
图10是合模然后注射并填充树脂材料9后的状态的说明图。
图11是示出在成形过程中覆盖引出配线单元8的导线10的部分的配线避让空间28的模具结构图。
图12是树脂材料9固化后的开模状态的说明图。
图13是从成形品中抽出芯棒24的状态的说明图。
图14是本发明的实施方式2的配线一体型树脂管中使用的(a)配线单元的分解图和(b)保持架的D-D剖视图。
图15是在该实施方式中使用的注射成形装置的芯棒的主要部分剖视图。
图16是在该实施方式中将配线单元8安装于芯棒的凹部25，并注射注入了树脂材料9，从成形品抽出芯棒24前的剖视图。
图17是将实施方式1作为比较例的情况下的(a)从轴向两端朝向管中央作用的收缩应力的说明图和(b)其整体图。
图18是本发明的实施方式2的(a)从轴向两端朝向管中央作用的收缩应力和从保持架作用的复原力的说明图和(b)其整体图。
图19是该实施方式中使用的保持架和芯棒的另一实施例的剖视图。
图20是示出本发明的实施方式3的(a)、(b)、(c)分别不同的实施例的保持架的俯视图。
图21是示出本发明的实施方式4的(a)、(b)分别不同的保持架的剖视图。
图22是本发明的实施方式5的(a)配线单元的剖视图和(b)E-E向视图。
图23是示出专利文献1所记载的配线一体型树脂管的内筒构件的图。
图24是示出专利文献1所记载的配线一体型树脂管的内筒构件中设置的槽形状的图。
附图标记说明
1 吸尘器主体；
2 吸引嘴；
3 软管；
4 配线一体型树脂管；
5 手持操作部；
6 狭缝；
7 管形状片；
8 配线单元；
9 树脂材料；
9A 冷却、固化后的接合树脂；
10 导线；
11 保持架；
12 槽；
12A、12B、12C 槽形状；
13 连接部；
14 连接部13的窗；
21 第一模具；
22 第二模具；
23a、23b 滑动芯；
24 芯棒；
25 芯棒24的凹部；
26 接合用间隙；
27 第一模具21的浇口；
28 配线避让空间
29 配线避让空间28的外缘部
30 保持架11的凸部；
31 芯棒24的凸部；
32 从轴向两端朝向管中央的收缩应力；
33 保持架11的复原力；
34 保持架11的凹部；
35 芯棒24的凸部；
36 在保持架11的接合面设置的突起形状；
37 在保持架11的接合面设置的使表面性状粗糙的面。
具体实施方式
以下，根据附图对本发明的实施方式进行说明。
(实施方式1)
图1～图13示出本发明的实施方式1。
图4所示的通常的电动吸尘器在吸尘器主体1配置有产生吸引灰尘、尘埃的力的马达。吸尘器主体1与吸引嘴2之间经由具有柔软性的中空的软管3、配线一体型树脂管4而连接。在设置于软管3的前端的手持操作部5配置有进行电源接通/断开、各种操作的开关、以及显示部。例如，通过经由配线一体型树脂管4向吸引嘴2的马达通电，能够使刷旋转。
图5示出配线一体型树脂管4。图1是配线一体型树脂管4的一端的放大图。如图2的(a)、(b)所示，配线一体型树脂管4具有：管形状片7，其以在短边方向(箭头X方向)的两端之间形成有狭缝6的方式隔开间隔地形成为大致管形状；配线单元8，其在比狭缝6靠内侧的位置沿着长度方向(箭头Y方向)配设；以及树脂材料9，其填充于由管形状片7的狭缝6的对置面与配线单元8构成的间隙，将管形状片7的狭缝6的对置面密闭，在配线单元8中沿长度方向铺设有配线用的导线10。
管形状片7是具有织物层的聚烯烃系的热塑性多层纤维强化树脂片，成形前的形状为长方形。配线单元8沿长度方向形成有图3的(a)、(b)所示的保持架11、以及相互并行地形成于该保持架11的槽12。导线10插入槽12中。保持架11的材料使用了聚烯烃系热塑性树脂。导线10的两端部分弯曲90°并向保持架11的外部引出。保持架11的长度方向的长度比管形状片7长。
通过利用注射成形装置向狭缝6与配线单元8的保持架11的间隙注射并填充熔融的树脂材料9，并使该树脂材料9的温度降低而固化，从而使管形状片7与配线单元8一体化，所述狭缝6通过管形状片7的长边在管形状片7的短边方向上对置地构成。
需要说明的是，在配线一体型树脂管4的两端部，在管形状片7的长度方向的两端由树脂材料9一体地成形有规定的形状的连接部13。保持架11的端部的一部分在形成于连接部13的窗14露出，导线10的端部从连接部13的窗14向外部引出。
另外，在通过注射成形装置填充熔融的树脂材料9时，也向保持架11的槽12的间隙填充树脂材料9并使其固化。
图6示出注射成形装置的开模状态，图7示出合模状态。该注射成形装置包括可动侧的第一模具21、以及固定侧的第二模具22。第二模具22包括滑动芯23a、23b、以及安装于滑动芯23a、23b中的芯棒24等。如图8的(a)所示，在芯棒24的上表面的一部分形成有供保持架11安装的凹部25。
该配线一体型树脂管4能够通过如下的工序来制造。
首先，如图8的(b)所示，将在槽12中安装有导线10的配线单元8安装于芯棒24的凹部25。然后，如图6所示，将管形状片7以呈大致管形状的方式安装于芯棒24的周面。
需要说明的是，在将配线单元8安装于芯棒24后卷绕管形状片7，但在将管形状片7卷绕于芯棒24的周面后安装配线单元8也是同样的。
接下来，使滑动芯23a、23b闭合，通过滑动芯23a、23b来约束管形状片7的外周面。在闭合后的滑动芯23a、23b的上部，沿着狭缝6如图9所示那样形成有接合用间隙26，该狭缝6通过管形状片7的长边在管形状片7的短边方向上对置地构成。通过第一模具21覆盖该滑动芯23a、23b的接合用间隙26。
由此，通过管形状片7的狭缝对置面以及配线单元8、滑动芯23a、23b的三面形成接合用间隙26，该接合用间隙26呈在轴向上较长的形状。
如图10所示，从第一模具21的浇口27向接合用间隙26注射并填充熔融的树脂材料9。作为树脂材料9，使用了聚烯烃系热塑性接合树脂。通过向该接合用间隙26注射熔融的树脂材料9，并使树脂材料9的热量散发，树脂材料9固化并且沿着管形状片7的狭缝对置面以轴向上较长的形状接合以及与配线单元8一体化，并且关于呈管状地卷绕于芯棒24的管形状片7的轴向的两端面，也一体形成有图2的(a)所示的连接部13而进行树脂密封。
需要说明的是，如图11所示，在该成形过程中从配线单元8向外部引出的导线10收容于根据模具的结构而设置的配线避让空间28，模具通过配线避让空间28的外缘部29与保持架11相接，由此熔融的树脂材料9不会流入配线避让空间28。
在树脂材料9被冷却而固化后，如图12所示，将模具打开并打开滑动芯23a、23b，然后如图13所示将芯棒24从成形品抽出，从而得到配线一体型树脂管4。
对于该配线一体型树脂管4而言，将长方形的管形状片7卷绕于芯棒24而将剖面形状约束为筒型形状，并且，通过冷却、固化后的树脂材料9将管形状片7的对置面以及配线单元8接合、一体化。
在将导线10的直径设为d，将导线10的所需根数设为n的情况下，保持架11配置为，宽度为(d+0.2mm以上)×n、且各导线10的间隔确保相邻的导线10绝缘的状态，厚度为(d+0.2mm以上)，长度方向的轴向长度为导线10的所需配线距离以上。槽12的深度为d/2以上，保持架11的形状为宽度13mm×高度2mm×长度344mm，导线间距离为3mm，导线直径d＝1mm，槽12的深度为0.8mm。
根据该结构，在制造相同材料以及相同内径、相同距离配线的配线一体型管时的产品重量与由以往的制造方法得到的管产品重量相比，能够轻型化约45％。另外，在通过内径相同的结构体进行比较的情况下，能够将配线一体化后的管外形削减约9％。
另外，不仅是管形状片7的轴向狭缝对置面，管形状片7的两端面也由树脂材料9的连接部13覆盖而进行了树脂密封，从而能够约束剖面形状呈筒型的管形状片7的从两端发生的歪曲、变形，能够制造正圆度高的树脂管。
本发明的配线一体型热塑性树脂管能够以与以往的注射成形同样的作业周期实现配线向管内的一体化，因此还能够应用于需要配线的管材的量产。
需要说明的是，管形状片7使用了具有织物层的多层纤维强化树脂片，但只要是能够呈管形状地卷绕于芯棒24的片材，则其结构并不特别限定。或者，也可以是具有多个层的层叠片、包括由强化纤维构成的织物层的预成型料等，并不特别限定。
另外，虽然使用了管形状片7、具有槽12的保持架11、接合用的树脂材料9，但它们的组合并不特别限定，也可以使用不同系统的片以及保持架、接合树脂来一体化地制造管，它们的组合只要能够通过注射成形进行接合则并不限定。
另外，向管外引出的导线10以弯曲90°的方式引出，但引出的角度并不特别限定，可以设定为任意的角度。
(实施方式2)
图14～图19示出本发明的实施方式2。
在实施方式1中，作为配线单元8的保持架11，使用了在安装于芯棒24之前的形状如图8的(a)所示整体形状平坦的构件，但在该实施方式2中，与实施方式1的不同之处在于，将整体形状在长度方向上弯曲的保持架11安装于芯棒24而成形。需要说明的是，对于与实施方式1相同的构成要素，使用相同的附图标记并省略说明。
对于在长度方向弯曲的保持架11的形状而言，制作使实施方式1中使用的、宽度13mm×高度2mm×长度344mm、导线间距离为3mm、导线直径1mm以及槽深度0.8mm的保持架弯曲且曲率半径为350mm的保持架。在该弯曲的保持架11中，如图14的(b)所示在两侧面遍及保持架11的全长形成有凸部30，从而构成为带台阶形状。在芯棒24的凹部25的内表面，形成有与如图15那样安装的保持架11的凸部30卡合的凸部31。凹部25形成为上表面窄下表面宽的形状。
在向芯棒24安装配线单元8的保持架11时，使保持架11的一端的凸部30、30的上表面与芯棒24的凸部31、31的下表面卡合，一边使弯曲的保持架11从芯棒24的一端滑动一边安装，通过剖面形状为直线的凹部25能够使保持架11的形状从弯曲形状弹性变形为直线形状从而进行插入。
在将管形状片7呈大致管形状地卷绕于芯棒24的外周后，与实施方式1同样地通过滑动芯23a、23b来约束管形状片7的外周面，该芯棒24安装有具有像这样弯曲的保持架11的配线单元8。然后，与实施方式1同样地从第一模具21的浇口27注射并填充熔融的树脂材料9。在填充的树脂材料9冷却固化后，从成形品中抽出芯棒24。
在该实施方式2中，通过从成形品中抽出芯棒24，能够利用想要恢复至弯曲的初始的状态的保持架11的复原弹力的效果，使在接合用间隙26上沿轴向产生的朝向管内侧的翘曲量与实施方式1的情况相比减少5％，能够制造圆筒度高的配线一体型树脂管4。
以下示出详细情况。
在保持架11不弯曲的情况下，在注射至接合用间隙26的熔融的树脂材料9向冷却、固化的接合树脂9A变化时，接合树脂整体热收缩。
另外，卷绕成管状的管形状片7的轴向两端面7A被冷却、固化后的接合用树脂9A约束、密封，从而如图17的(a)那样从轴向两端朝向管中央产生收缩应力32。然而，具有由强化纤维构成的织物层的管形状片7不熔融，因此不产生冷却、固化这样的状态变化，从而无法追随接合树脂9A的热收缩。因此，在设置于管形状片7的狭缝对置面的接合用间隙26沿轴向延伸的方向上，成形品如图17的(b)所示产生翘曲。
相对于此，在实施方式2中，保持架11自身弯曲，因此在成形后通过滑动芯23a、23b的打开、以及芯棒24的抽出，如图18的(a)所示，在成形品中朝向注射至管形状片7的狭缝对置面且冷却、固化后的接合树脂9A在沿轴向延伸的整个区域产生想要使保持架11恢复至弯曲的状态的复原力33。
由此，如图18的(b)所示，能够从内侧抵抗在接合用间隙26上想要向内侧翘曲的力，能够减少配线一体型树脂管4的轴向上的翘曲量。
需要说明的是，保持架11的曲率能够在滑动地插入芯棒24的凹部25而进行矫正时不使保持架11产生裂缝、破裂的范围内自由地设定。
另外，只要是在一边滑动一边向芯棒24插入时能够将配线单元8的保持架11约束为平坦的结构即可，例如可以如图19所示为在弯曲的保持架11的两侧面遍及保持架11的全长而形成有半月状的凹部34，并在芯棒24的凹部25的内侧设置有与凹部34卡合的半月状的凸部35等的组合，并不特别限制。
另外，为了将弯曲的保持架11约束为平坦，使弯曲的保持架11与芯棒24的平坦的凹部25卡合，但在如实施方式1那样保持架11自身平坦的情况下，也能够使保持架11与芯棒24的平坦的凹部25卡合来实施。
(实施方式3)
图20的(a)、(b)、(c)示出本发明的实施方式3。
在上述的各实施方式中，导线10的两侧弯曲90°而从配线一体型树脂管4的两端附近引出，但向管外引出的引出位置并不特别限定。具体地说，可以采用如图20的(a)所示能够将多个导线10配置于一直线上的槽形状12A、如图20的(b)所示能够倾斜地配置导线10的槽形状12B、以及如图20的(c)所示用于在任意的位置将导线10不弯折地保持直线状态埋入而从管的轴向端面引出配线的通槽形状12C等，只要在结构方面不与片、接合用树脂干涉，则能够从任意的位置以各种各样的槽形状制造所需个数，能够从各种各样的位置通过自由的路线向管外引出导线10。由导线10的根数n决定的槽的数量也不限定。根据该结构，还能够应对复杂的配线的迂回、每个导线想要引出的位置不同的情况。
(实施方式4)
在上述的各实施方式的保持架11中，供导线10插入的槽仅形成在接合用间隙26侧的面，槽的两侧为平滑的平坦面，但也可以如图21的(a)所示在槽部以外的部位设置突起形状36、或如图21的(b)所示形成为故意使接合面的表面性状粗糙的面37。
根据该结构，通过设置突起、或使表面性状粗糙，从而在保持架表面呈现出树脂材料9的锚定效果，由此接合强度提高。
(实施方式5)
在上述的各实施方式的保持架11中，形成有供导线10插入的槽12或12A、12B、12C，但也可以如图22的(a)、(b)所示仅使导线10的两端从由电绝缘性材料形成的保持架11向外侧引出，除两端以外将导线10埋设于电绝缘性材料。
需要说明的是，对于上述的各实施方式，能够同时将多个实施方式进行组合。
产业上的可利用性
本发明有助于各种装置中使用的配线一体型树脂管的量产化。

Claims (10)

1.一种配线一体型树脂管，具有：
管形状片，其以在短边方向的两端之间形成有狭缝的方式隔开间隔地形成为大致管形状；
配线单元，其在比所述狭缝靠内侧的位置沿着所述狭缝的长度方向配置于所述管形状片；以及
树脂材料，其填充至由所述管形状片的所述狭缝的对置面与所述配线单元构成的间隙，将所述管形状片的所述狭缝的对置面密闭，
在所述配线单元的内侧沿所述长度方向铺设有配线用的导线。
2.根据权利要求1所述的配线一体型树脂管，其中，
所述配线单元的与轴向垂直的剖面呈带台阶形状或凹凸形状。
3.根据权利要求1所述的配线一体型树脂管，其中，
所述配线单元具有保持架，该保持架形成有供配线用的所述导线插入的槽，在插入有所述导线的所述槽中填充有所述树脂材料。
4.根据权利要求3所述的配线一体型树脂管，其中，
在将所述导线的直径设为d，将所述导线的所需根数设为n的情况下，
所述保持架的宽度为(d+0.2mm以上)×n，且各导线的间隔以相邻的导线确保了绝缘的状态配置，
所述保持架的厚度为d+0.2mm以上，所述槽的深度为d/2以上，所述保持架的轴向长度为所需配线距离。
5.一种配线一体型树脂管的制造方法，其中，
将形状为长方形的热塑性片以在短边方向的两端之间形成有狭缝的方式隔开间隔地配置为大致管形状，
将沿长度方向铺设有配线用的导线的配线单元在比所述狭缝靠内侧的位置沿着所述狭缝的长度方向配置于所述热塑性片，
向由所述热塑性片的所述狭缝的对置面与所述配线单元构成的间隙填充树脂材料，使所述热塑性片与所述配线单元一体化。
6.一种配线一体型树脂管的制造方法，其中，
在具有第一模具、第二模具、以及在合模状态下配置于所述第二模具的内部的芯棒的成形装置的所述芯棒的周面，将形状为长方形的热塑性的片以在短边方向的两端之间形成有狭缝的方式隔开间隔地配置为大致管形状，并且将沿着长度方向铺设有配线用的导线的配线单元在比所述狭缝靠内侧的位置沿着所述狭缝的长度方向配置于所述芯棒，
在将所述第一模具与所述第二模具合模后，向接合用间隙注射熔融的树脂材料，该接合用间隙由配置为大致管形状的所述片的对置面即所述狭缝与所述配线单元构成，
在通过所述注射注入的树脂材料的温度降低而固化后开模，从利用所述树脂材料而使所述片与所述配线单元一体化的成形品中取出所述芯棒。
7.根据权利要求6所述的配线一体型树脂管的制造方法，其中，
将在长度方向上弯曲的配线单元平坦地安装于所述芯棒。
8.根据权利要求7所述的配线一体型树脂管的制造方法，其中，
将所述配线单元以及所述芯棒的与轴向垂直的剖面形成为相互嵌合的带台阶形状或凹凸形状。
9.根据权利要求6所述的配线一体型树脂管的制造方法，其中，
将所述导线分别配置于在所述配线单元的保持架形成的多个槽，并将所述配线单元配置于所述芯棒。
10.根据权利要求6所述的配线一体型树脂管的制造方法，其中，
在所述配线单元的保持架形成有供所述导线配置的槽，
在将所述导线的直径设为d，将所述导线的所需根数设为n的情况下，
所述保持架的宽度为(d+0.2mm以上)×n，且各导线的间隔以相邻的导线确保了绝缘的状态配置，
所述保持架的厚度为d+0.2mm以上，所述槽的深度为d/2以上，所述保持架的轴向长度为所需配线距离。
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