JP5614374B2 - Wire bundle with covering member and method of manufacturing wire bundle with covering member - Google Patents

Description

この発明は、ワイヤーハーネス等の電線束を保護する技術に関する。   The present invention relates to a technique for protecting a wire bundle such as a wire harness.

特許文献１には、フラット回路体の外周囲にプロテクタを形成する技術が開示されている。プロテクタは、フラット回路体を、熱可塑性フェルト又は発泡剤を含有する不織布の熱可塑性材料からなる２枚の被覆体で挟み、これをプレス成形して、２枚の被覆体をフラット回路体に密着させると共に２枚の被覆体が接する箇所を溶着することにより形成される。   Patent Document 1 discloses a technique for forming a protector on the outer periphery of a flat circuit body. The protector sandwiches the flat circuit body between two cover bodies made of a thermoplastic material of a nonwoven fabric containing thermoplastic felt or foaming agent, press-molds them, and adheres the two cover bodies to the flat circuit body And is formed by welding a portion where the two coated bodies are in contact with each other.

特開２００３−１９７０３８号公報Japanese Patent Laid-Open No. 2003-197038

ところで、不織布は、フラット回路体だけではなく、様々な形状に束ねられた電線束を覆うことができる。不織布が電線束を覆う場合、不織布は電線束の外周形状に応じた形状に圧縮変形する。この状態で、不織布を加熱及びプレス成形すると、成形後の不織布の厚みが不均一となってしまう。これにより、耐摩耗性も不均一となってしまう。   By the way, a nonwoven fabric can cover not only a flat circuit body but the electric wire bundle bundled in various shapes. When the nonwoven fabric covers the wire bundle, the nonwoven fabric is compressed and deformed into a shape corresponding to the outer peripheral shape of the wire bundle. If the nonwoven fabric is heated and press-molded in this state, the thickness of the nonwoven fabric after molding becomes non-uniform. Thereby, abrasion resistance will also become non-uniform | heterogenous.

そこで、本発明は、電線束を不織布で覆ってホットプレスする場合に、耐摩耗性の均一化を図ることを目的とする。   Therefore, an object of the present invention is to achieve uniform wear resistance when hot pressing is performed by covering a wire bundle with a nonwoven fabric.

上記課題を解決するため、第１の態様に係る被覆部材付電線束は、電線束と、前記電線束を覆う不織材料によって形成され、内周面がホットプレス加工された内周側加工面に形成されると共に、前記内周側加工面が前記電線束の外周りに接している被覆部材とを備える。   In order to solve the above-described problem, the wire bundle with a covering member according to the first aspect is formed of an electric wire bundle and a non-woven material that covers the wire bundle, and the inner peripheral surface processed by hot pressing the inner peripheral surface And a covering member in which the inner peripheral side processed surface is in contact with the outer periphery of the wire bundle.

また、第１の態様では、前記被覆部材の外周面がホットプレス加工された外周側加工面に形成されている。 Moreover, in the 1st aspect, the outer peripheral surface of the said covering member is formed in the outer peripheral side processed surface by which the hot press process was carried out.

また、第１の態様では、前記被覆部材の外周形状が非円形状を呈するように、前記被覆部材の外周面がホットプレス加工されている。 In the first aspect, the outer peripheral surface of the covering member is hot-pressed so that the outer peripheral shape of the covering member exhibits a non-circular shape.

第２の態様は、第１の態様に係る被覆部材付電線束であって、前記被覆部材の内周形状が、前記被覆部材の外周形状が呈する非円形状に応じた形状に形成されている。 A 2nd aspect is a wire bundle with a covering member which concerns on a 1st aspect, Comprising: The inner peripheral shape of the said covering member is formed in the shape according to the non-circular shape which the outer peripheral shape of the said covering member exhibits .

第３の態様は、第１又は第２の態様に係る被覆部材付電線束であって、前記被覆部材は、少なくとも一端側部分の一方面がホットプレス加工により硬化加工面に形成されたシート状の不織材料が、前記硬化加工面を内周側にして前記電線束に巻付けられることによって形成されている。 A 3rd aspect is a wire bundle with a covering member concerning the 1st or 2nd aspect, Comprising: As for the said covering member, at least one surface of the one end side part was formed in the sheet-like form by the hot press process in the hardening process surface The non-woven material is formed by being wound around the wire bundle with the hardened surface being the inner peripheral side.

上記課題を解決するため、第４の態様に係る被覆部材付電線束の製造方法は、(a)シート状に形成された不織材料のうち、少なくとも一端側部分の一方面をホットプレス加工により硬化加工面に形成する工程と、(b)前記硬化加工面を内周側にして電線束の外周りに接触させるようにしつつ、前記不織材料を前記電線束に巻付けて被覆部材を形成する工程とを備える。 In order to solve the above-described problem, a method of manufacturing a wire bundle with a covering member according to a fourth aspect includes (a) hot pressing at least one surface of one end portion of a nonwoven material formed in a sheet shape. forming and forming the hardened working face, the (b) while so as to contact with the outer circumference of the to electric flux the curing processing surface on the inner peripheral side, the covering member is wound around the non-woven material to the wire bundle And a step of performing.

また、第４の態様は、(c)前記被覆部材の外周面をホットプレス加工する工程をさらに備える。 Moreover, a 4th aspect is further equipped with the process of hot-pressing the outer peripheral surface of the said coating | coated member (c).

また、第４の態様は、前記工程(c)において、前記被覆部材の外周形状が非円形状を呈するように、前記被覆部材の外周面をホットプレス加工する。 In the fourth aspect, in the step (c), the outer peripheral surface of the covering member is hot pressed so that the outer peripheral shape of the covering member exhibits a non-circular shape.

第５の態様は、第４の態様に係る被覆部材付電線束の製造方法であって、前記工程(a)において、前記被覆部材の一端側部分の内周形状が非円形状を呈するように、前記不織材料の一端側部分を非円形筒状に加工し、前記工程(c)において、前記被覆部材の外周形状が前記被覆部材の一端側部分の非円形筒状に応じた形状を呈するように、前記被覆部材の外周面をホットプレス加工する。 A 5th aspect is a manufacturing method of the wire bundle with a covering member which concerns on a 4th aspect, Comprising: In the said process (a), the inner peripheral shape of the one end side part of the said covering member exhibits noncircular shape. The one end side portion of the nonwoven material is processed into a non-circular cylindrical shape, and in the step (c), the outer peripheral shape of the covering member exhibits a shape corresponding to the non-circular cylindrical shape of the one end side portion of the covering member. As described above, the outer peripheral surface of the covering member is hot-pressed.

第１の態様によると、被覆部材の内周面がホットプレス加工された内周側加工面に形成されると共に、前記内周側加工面が前記電線束の外周りに接しているため、被覆部材の厚みをなるべく均一にすることができ、耐摩耗性の均一化を図ることができる。   According to the first aspect, the inner peripheral surface of the covering member is formed on the inner peripheral side processed surface that is hot-pressed, and the inner peripheral side processed surface is in contact with the outer periphery of the wire bundle. The thickness of the member can be made as uniform as possible, and the wear resistance can be made uniform.

第１の態様によると、前記被覆部材の外周面がホットプレス加工された外周側加工面に形成されているため、被覆部材が電線束を覆った所定形状を維持でき、かつ、電線束を十分に保護できる。 According to the first aspect, since the outer peripheral surface of the covering member is formed on the outer peripheral surface processed by hot pressing, the covering member can maintain a predetermined shape covering the electric wire bundle, and the electric wire bundle is sufficiently Can be protected.

第１の態様によると、被覆部材の外周形状が非円形状を呈することで、被覆部材付電線束を配設対象箇所に応じた形状に形成して、スペース効率よく配設することができる。 According to the 1st aspect, since the outer periphery shape of a coating | coated member exhibits non-circular shape, the wire bundle with a coating | coated member can be formed in the shape according to arrangement | positioning object location, and can be arrange | positioned efficiently.

第２の態様によると、前記被覆部材の内周形状が、前記被覆部材の外周形状が呈する非円形状に応じた形状に形成されているため、被覆部材の厚みをより均一化できる。 According to the 2nd aspect, since the inner peripheral shape of the said covering member is formed in the shape according to the non-circular shape which the outer peripheral shape of the said covering member exhibits, the thickness of a covering member can be made more uniform.

第３の態様によると、内周面がホットプレス加工された被覆部材を容易に形成できる。 According to the 3rd aspect, the coating | coated member by which the internal peripheral surface was hot-press processed can be formed easily.

第４の態様に係る被覆部材付電線束の製造方法によると、シート状に形成された不織材料のうち、少なくとも一端側部分の一方面をホットプレス加工により硬化加工面に形成し、前記硬化加工面を内周側にして前記電線束の外周りに接触させるようにしつつ、前記不織材料を前記電線束に巻付けて被覆部材を形成しているため、被覆部材の厚みを均一にすることができ、耐摩耗性の均一化を図ることができる。 According to the method of manufacturing the wire bundle with a covering member according to the fourth aspect, among the nonwoven materials formed in a sheet shape, at least one surface of one end side portion is formed on the cured surface by hot pressing, and the curing The covering member is formed by winding the non-woven material around the wire bundle while making the processed surface inwardly contact with the outer periphery of the wire bundle, so that the thickness of the covering member is made uniform. Therefore, the wear resistance can be made uniform.

第４の態様によると、前記被覆部材の外周面もホットプレス加工されているため、被覆部材が電線束を覆った状態を維持でき、かつ、電線束を十分に保護できる。 According to the 4th aspect, since the outer peripheral surface of the said covering member is also hot-press-processed, the state which the covering member covered the electric wire bundle can be maintained, and an electric wire bundle can fully be protected.

第４の態様によると、被覆部材の外周形状が非円形状を呈することで、被覆部材付電線束を配設対象箇所に応じた形状に形成して、スペース効率よく配設することができる。また、この場合に、被覆部材の厚みを均一にして、耐摩耗性の均一化を図ることができる。 According to the 4th aspect, since the outer periphery shape of a coating | coated member exhibits non-circular shape, the wire bundle with a coating | coated member can be formed in the shape according to arrangement | positioning object location, and can be arrange | positioned efficiently. Further, in this case, the thickness of the covering member can be made uniform to make the wear resistance uniform.

第５の態様によると、前記被覆部材の外周形状を、前記被覆部材の一端側部分の非円形筒状に応じた形状に形成するため、被覆部材の厚みをより均一化できる。
According to the 5th aspect, since the outer peripheral shape of the said covering member is formed in the shape according to the non-circular cylinder shape of the one end side part of the said covering member, the thickness of a covering member can be made more uniform.

実施形態に係る被覆部材付電線束を示す斜視図である。It is a perspective view showing an electric wire bundle with a covering member concerning an embodiment. 図１のＩＩ−ＩＩ線断面図である。It is the II-II sectional view taken on the line of FIG. 比較例を示す図である。It is a figure which shows a comparative example. 被覆部材付電線束の配設例を示す図である。It is a figure which shows the example of arrangement | positioning of the electric wire bundle with a covering member. 変形例に係る被覆部材付電線束を示す断面図である。It is sectional drawing which shows the electric wire bundle with a covering member which concerns on a modification. 変形例に対する比較例を示す図である。It is a figure which shows the comparative example with respect to a modification. 他の変形例に係る被覆部材付電線束を示す断面図である。It is sectional drawing which shows the electric wire bundle with a covering member which concerns on another modification. 被覆部材付電線束の製造工程を示す図である。It is a figure which shows the manufacturing process of a wire bundle with a covering member. 被覆部材付電線束の製造工程を示す図である。It is a figure which shows the manufacturing process of a wire bundle with a covering member. 被覆部材付電線束の製造工程を示す図である。It is a figure which shows the manufacturing process of a wire bundle with a covering member. 被覆部材付電線束の製造工程を示す図である。It is a figure which shows the manufacturing process of a wire bundle with a covering member. 被覆部材付電線束の製造工程を示す図である。It is a figure which shows the manufacturing process of a wire bundle with a covering member. 被覆部材付電線束の製造工程を示す図である。It is a figure which shows the manufacturing process of a wire bundle with a covering member.

以下、実施形態に係る被覆部材付電線束及び被覆部材付電線束の製造方法について説明する。   Hereinafter, the manufacturing method of the wire bundle with a covering member and the wire bundle with a covering member according to the embodiment will be described.

＜被覆部材付電線束＞
まず、被覆部材付電線束について説明する。図１は被覆部材付電線束１０を示す斜視図であり、図２は図１のＩＩ−ＩＩ線断面図である。 <Wire bundle with covering member>
First, the wire bundle with a covering member will be described. FIG. 1 is a perspective view showing an electric wire bundle 10 with a covering member, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG.

被覆部材付電線束１０は、電線束１２と、被覆部材２０とを備えている。   The electric wire bundle 10 with a covering member includes an electric wire bundle 12 and a covering member 20.

電線束１２は、複数の電線１４が束ねられた構成とされている。電線１４は、車両等において各種電気機器間を電気的に相互接続する配線材である。かかる複数の電線１４が車両等における布線経路、接続位置等に応じた態様で結束されることで、ワイヤーハーネスが製造される。電線束１２としては、このようなワイヤーハーネスが想定される。なお、電線束１２のうち被覆部材２０で覆われる部分は、電線束１２が被覆部材２０の内周面形状に沿った形状に変形できるように、各電線１４が強い力で拘束されていないことが好ましい。   The electric wire bundle 12 is configured such that a plurality of electric wires 14 are bundled. The electric wire 14 is a wiring member for electrically interconnecting various electric devices in a vehicle or the like. A wire harness is manufactured by bundling such a plurality of electric wires 14 in a manner corresponding to a wiring route, a connection position, and the like in a vehicle or the like. Such a wire harness is assumed as the wire bundle 12. In addition, each wire 14 is not restrained by strong force so that the part covered with the coating | coated member 20 among the wire bundles 12 can deform | transform into the shape along the inner peripheral surface shape of the coating | coated member 20. Is preferred.

被覆部材２０は、電線束１２を覆う不織材料によって形成されている。不織材料としては、加熱工程を経ることにより硬くなることが可能な不織材料を用いることができる。ここで、ホットプレス加工とは、不織材料に対して加熱処理及び不織材料を型に押付けて所定形状に形成する処理を施すことをいう。加熱処理と所定形状への形成処理とは、同時に行われてもよいし、或は、連続的に別々に行われてもよい。かかる不織材料及びホットプレス加工の一例については後にさらに詳述する。   The covering member 20 is formed of a non-woven material that covers the wire bundle 12. As the nonwoven material, a nonwoven material that can be hardened by a heating process can be used. Here, the hot press processing refers to performing a heat treatment on the nonwoven material and a process of pressing the nonwoven material against a mold to form a predetermined shape. The heat treatment and the forming process into a predetermined shape may be performed simultaneously, or may be performed separately continuously. An example of such a non-woven material and hot pressing will be described in detail later.

被覆部材２０の内周面はホットプレス加工された内周側加工面２２に形成されると共に、その内周側加工面２２が電線束１２の外周りに接している。つまり、被覆部材２０の内周側加工面２２は、ホットプレス加工により一定形状を維持できる硬い面に形成されている。従って、内周側加工面２２が電線束１２の外周りに押付けられた状態で、平坦な形状が維持されている。ここで、内周側加工面２２が電線束１２の外周りに接しているとは、当該加工面２２が電線束１２の外周り全体から（例えば、少なくとも３方から）接している状態をいう。例えば、内周側加工面２２が多角柱の外周側面形状を呈している場合には、その各側面が電線束１２に接していればよい。また、内周側加工面２２が円柱の外周側面形状を呈している場合には、その円形断面が電線束１２を包含することができる最小円であればよい。   The inner peripheral surface of the covering member 20 is formed on the inner peripheral side processed surface 22 that is hot-pressed, and the inner peripheral side processed surface 22 is in contact with the outer periphery of the wire bundle 12. That is, the inner peripheral side processed surface 22 of the covering member 20 is formed as a hard surface that can maintain a constant shape by hot pressing. Therefore, a flat shape is maintained in a state where the inner peripheral side processed surface 22 is pressed around the outer periphery of the wire bundle 12. Here, the inner peripheral side processed surface 22 being in contact with the outer periphery of the wire bundle 12 means a state in which the processed surface 22 is in contact with the entire outer periphery of the wire bundle 12 (for example, from at least three directions). . For example, when the inner peripheral side processed surface 22 has a polygonal outer peripheral side surface shape, each side surface only needs to be in contact with the wire bundle 12. Further, when the inner peripheral side processed surface 22 has a cylindrical outer peripheral side surface shape, the circular cross section may be a minimum circle that can include the wire bundle 12.

また、被覆部材２０の外周面は、ホットプレス加工された外周側加工面２６に形成されている。これにより、被覆部材２０が電線束１２を覆った状態が維持されると共に、被覆部材２０の外周面形状が一定形状に維持されている。   The outer peripheral surface of the covering member 20 is formed on the outer peripheral side processed surface 26 that has been hot pressed. As a result, the state in which the covering member 20 covers the wire bundle 12 is maintained, and the outer peripheral surface shape of the covering member 20 is maintained in a constant shape.

ここでは、被覆部材２０の外周形状は、三角柱の外周側面形状を呈するように形成されている。また、被覆部材２０の内周形状は、被覆部材２０の外周形状が呈する三角柱の外周側面形状に応じた形状に形成されている。より具体的には、被覆部材２０の内周形状は、被覆部材２０の外周形状が呈する三角柱よりも一回り分（被覆部材２０の被覆厚み分）小さい三角柱の外周側面形状に形成されている。これにより、被覆部材２０が電線束１２の外周りで、より確実に一定の厚み寸法となるように仕上げられている。   Here, the outer peripheral shape of the covering member 20 is formed to exhibit the outer peripheral side surface shape of a triangular prism. Further, the inner peripheral shape of the covering member 20 is formed in a shape corresponding to the outer peripheral side surface shape of the triangular prism exhibited by the outer peripheral shape of the covering member 20. More specifically, the inner peripheral shape of the covering member 20 is formed in the outer peripheral side surface shape of a triangular prism that is smaller than the triangular prism exhibited by the outer peripheral shape of the covering member 20 (the coating thickness of the covering member 20). Thus, the covering member 20 is finished around the outer periphery of the wire bundle 12 so as to have a certain thickness dimension more reliably.

上記のような被覆部材２０は、シート状の不織材料のうち少なくとも一端側部分の一方面をホットプレス加工によって硬化加工面に仕上げておき、当該硬化加工面を内周側にして前記不織材料を電線束１２に巻付けることによって形成した構成とすることができる。これにより、硬化された内周側加工面２２を有する被覆部材２０を容易に製造することができる。この製造方法の具体例については、後で詳述する。   The covering member 20 is made of the nonwoven material in which at least one end portion of the sheet-like non-woven material is finished to a hardened surface by hot pressing, and the hardened surface is set to the inner peripheral side. It can be set as the structure formed by winding material around the electric wire bundle 12. FIG. Thereby, the coating | coated member 20 which has the hardened inner peripheral side processed surface 22 can be manufactured easily. A specific example of this manufacturing method will be described later.

なお、上記被覆部材２０は、電線束１２が他の部分と接触することを抑制して当該電線束１２を保護する役割も有している。また、被覆部材２０のうちホットプレス加工された部分が一定形状を維持することで、電線束１２の経路を規制する役割も有している。   In addition, the said covering member 20 also has a role which suppresses that the wire bundle 12 contacts with another part and protects the said wire bundle 12. FIG. Moreover, it has the role which regulates the path | route of the electric wire bundle 12 because the hot-pressed part of the coating | coated member 20 maintains a fixed shape.

このように構成された被覆部材付電線束１０によると、被覆部材２０の内周面がホットプレス加工された内周側加工面２２に形成され、前記内周側加工面２２が電線束１２の外周りに接しているため、被覆部材２０の厚み寸法をなるべく均一にすることができ、また、密度もなるべく均一化される。これにより、耐摩耗性の均一化を図ることができる。   According to the wire bundle 10 with the covering member configured as described above, the inner peripheral surface of the covering member 20 is formed on the inner peripheral side processed surface 22 that is hot-pressed, and the inner peripheral side processed surface 22 is formed of the electric wire bundle 12. Since it is in contact with the outer periphery, the thickness dimension of the covering member 20 can be made as uniform as possible, and the density can be made as uniform as possible. Thereby, uniform wear resistance can be achieved.

これを図３の比較例を参照して説明する。すなわち、この比較例では、被覆部材１２０の内周面をホットプレス加工していない。このため、被覆部材１２０が電線束１１２を覆った状態で、被覆部材１２０の内周面形状は、当該電線束１１２の外周りの凹凸形状に応じた凹凸形状を呈している。このため、被覆部材１２０の厚み寸法が大きい部分（例えば、寸法Ｈ１の部分参照）と、厚み寸法が小さい部分（例えば、寸法Ｈ２の部分参照）とが存在する。しかも、厚み寸法が小さい部分では、不織材料が電線束１１２を覆う際に、電線束１１２の外周りの凸部分から側方に押退けられていると考えられるため、厚み寸法が小さい分を補える程の高密度になっているわけではないと考えられる。このため、被覆部材１２０の厚み寸法の不均一性に応じてその耐摩耗性も不均一となってしまう。   This will be described with reference to the comparative example of FIG. That is, in this comparative example, the inner peripheral surface of the covering member 120 is not hot pressed. For this reason, with the covering member 120 covering the wire bundle 112, the inner peripheral surface shape of the covering member 120 exhibits an uneven shape corresponding to the uneven shape around the outer periphery of the wire bundle 112. For this reason, there exist a part (for example, refer to the part of dimension H1) and a part (for example, refer to the part of dimension H2) with a small thickness dimension of covering member 120. Moreover, in the portion where the thickness dimension is small, when the nonwoven material covers the wire bundle 112, it is considered that the nonwoven material is pushed away from the convex portion around the outer periphery of the wire bundle 112. The density is not high enough to compensate. For this reason, according to the nonuniformity of the thickness dimension of the coating | coated member 120, the abrasion resistance will also become nonuniform.

これに対して、本被覆部材付電線束１０によると、電線束１２の外周りの凹凸形状に拘らず、被覆部材２０の内周形状は一定形状を維持している。このため、被覆部材２０の厚み寸法をなるべく均一にすることができ、もって、その耐摩耗性も均一化することができる。   On the other hand, according to the electric wire bundle 10 with the covering member, the inner peripheral shape of the covering member 20 maintains a constant shape regardless of the uneven shape around the outer periphery of the electric wire bundle 12. For this reason, the thickness dimension of the covering member 20 can be made as uniform as possible, and the wear resistance thereof can be made uniform.

また、被覆部材２０の外周面がホットプレス加工された外周側加工面２６に形成されているため、被覆部材２０が電線束１２を覆った状態を維持でき、かつ、電線束１２を十分に保護できる。   Moreover, since the outer peripheral surface of the covering member 20 is formed on the outer peripheral side processed surface 26 that has been hot-pressed, the state in which the covering member 20 covers the wire bundle 12 can be maintained, and the wire bundle 12 can be sufficiently protected. it can.

しかも、被覆部材２０の外周形状が三角柱の外周側面形状を呈しているため、被覆部材付電線束１０を配設対象箇所に応じた形状に形成して、スペース効率よく配設することができる。   And since the outer periphery shape of the coating | coated member 20 is exhibiting the outer peripheral side surface shape of a triangular prism, the electric wire bundle 10 with a covering member can be formed in the shape according to arrangement | positioning object location, and can be arrange | positioned efficiently.

すなわち、図４に示すように、車体において底板５０と側壁５１とで囲まれるスペースが存在し、そのスペースのコーナー部分に角柱状の部分５２（例えば、補強用の部分）が設けられていたとする。この場合、角柱状の部分５２と底板５０との間、或は、角柱状の部分５２と側壁５１との間には、略直交する面で囲まれるスペースが存在する。このスペースに断面円形状の被覆部材付電線束６０を配設したとすると、被覆部材付電線束６０周りにデッドスペースが発生してしまう。この上に、フロアカーペット５４を敷くと、被覆部材付電線束６０分突出した状態となってしまう（図４において角柱状の部分５２の上側参照）。これに対して、略直交する面で囲まれるスペースに対して断面三角形状の被覆部材付電線束１０を配設した場合、上記の場合よりも被覆部材付電線束１０の周りにデッドスペースが発生し難い。このため、この上のフロアカーペット５４を敷いた場合に、被覆部材付電線束１０による突出分を小さく、目立たなくすることができる。なお、図４では、略直交する面で囲まれるスペースに被覆部材付電線束１０をスペース効率よく配設するため、被覆部材付電線束１０の断面形状が直角三角形である例を示している。もっとも、被覆部材付電線束１０の断面形状が三角形状であれば、断面円形状の被覆部材付電線束６０と比べて、スペース効率よく配設することができる。   That is, as shown in FIG. 4, there is a space surrounded by the bottom plate 50 and the side wall 51 in the vehicle body, and a prismatic portion 52 (for example, a reinforcing portion) is provided at the corner portion of the space. . In this case, there is a space surrounded by a substantially orthogonal plane between the prismatic portion 52 and the bottom plate 50 or between the prismatic portion 52 and the side wall 51. If the wire bundle 60 with a covering member having a circular cross section is disposed in this space, a dead space is generated around the wire bundle 60 with a covering member. If the floor carpet 54 is laid on this, it will be in the state which protruded 60 minutes of electric wire bundles with a covering member (refer to the upper side of prismatic part 52 in Drawing 4). On the other hand, when the wire bundle 10 with a covering member having a triangular cross section is disposed in a space surrounded by a substantially orthogonal plane, a dead space is generated around the wire bundle 10 with a covering member than in the above case. It is hard to do. For this reason, when the floor carpet 54 on this is spread | laid, the protrusion by the electric wire bundle 10 with a covering member can be made small, and can be made inconspicuous. FIG. 4 shows an example in which the cross-sectional shape of the wire bundle 10 with a covering member is a right triangle in order to efficiently arrange the wire bundle 10 with a covering member in a space surrounded by substantially orthogonal surfaces. But if the cross-sectional shape of the electric wire bundle 10 with a covering member is a triangle shape, compared with the electric wire bundle 60 with a covering member having a circular cross section, it can be arranged more efficiently.

また、被覆部材２０の内周形状が、被覆部材２０の外周形状が呈する三角柱の外周側面形状に応じた形状に形成されているため、被覆部材２０の厚みをより均一化できる。   Moreover, since the inner peripheral shape of the covering member 20 is formed in a shape corresponding to the outer peripheral side surface shape of the triangular prism that the outer peripheral shape of the covering member 20 exhibits, the thickness of the covering member 20 can be made more uniform.

なお、図５に示す被覆部材付電線束１０Ｂのように、被覆部材２０Ｂの内周形状及び外周形状が、ホットプレス加工によって扁平な四角柱状の外周側面形状に形成されていてもよい。   In addition, like the wire bundle 10B with a covering member shown in FIG. 5, the inner peripheral shape and the outer peripheral shape of the covering member 20B may be formed into a flat rectangular columnar outer peripheral side surface shape by hot pressing.

この場合でも、図６に示す比較例と比較して、被覆部材２０Ｂの厚み寸法をより均一化して、耐摩耗性の均一化を図ることができる。すなわち、図６に示す比較例では、図３に示す比較例と同様に、電線束１１２Ｂの外周の凹凸形状に応じて、被覆部材１２０Ｂの厚み寸法が変化し、耐摩耗性が不均一となる。これに対して、図５に示す例では、上記実施形態と同様の理由により、被覆部材２０Ｂの耐摩耗性の均一化を図ることができる。図５に示す例は、配設箇所のスペースが扁平な方形状の断面を有する形状である場合に、スペース効率よく配設できる形態である。   Even in this case, compared with the comparative example shown in FIG. 6, the thickness dimension of the covering member 20B can be made more uniform, and the wear resistance can be made uniform. That is, in the comparative example shown in FIG. 6, similarly to the comparative example shown in FIG. 3, the thickness dimension of the covering member 120B changes according to the uneven shape on the outer periphery of the wire bundle 112B, and the wear resistance becomes non-uniform. . On the other hand, in the example shown in FIG. 5, the wear resistance of the covering member 20B can be made uniform for the same reason as in the above embodiment. The example shown in FIG. 5 is a form in which space can be efficiently disposed when the space of the disposed portion has a flat rectangular cross section.

このように、被覆部材付電線束１０、１０Ｂの被覆部材２０、２０Ｂの外周形状を、配設箇所のスペースの形状に応じた形状にすることで、当該被覆部材付電線束１０、１０Ｂをスペース効率よく配設することができる。   In this way, by setting the outer peripheral shape of the covering members 20 and 20B of the electric wire bundles 10 and 10B with covering members to a shape corresponding to the shape of the space at the location of placement, the electric wire bundles 10 and 10B with covering members are made into a space. It can arrange | position efficiently.

特に、複数の電線を単に束ねると、円形状を呈する電線束になる傾向となることから、当該電線束を覆う被覆部材を非円形状（例えば、多角柱状、或は、扁平形状）に形成しようとすると、その形状の差に起因して、被覆部材の厚みが不均一となりやすい。そこで、上記被覆部材付電線束１０、１０Ｂのように、被覆部材２０、２０Ｂの外周形状を非円形状に形成した場合に、被覆部材２０の内周形状を被覆部材２０、２０Ｂの外周形状に応じた当該非円形状（相似形でかつ一回り小さい（保護に必要な厚み分小さい）形状）に形成することで、被覆部材の厚みを効果的に均一化することができる。   In particular, if a plurality of electric wires are simply bundled, it tends to be a circular electric wire bundle. Therefore, the covering member covering the electric wire bundle should be formed in a non-circular shape (for example, a polygonal column shape or a flat shape). Then, due to the difference in shape, the thickness of the covering member tends to be non-uniform. Therefore, when the outer peripheral shape of the covering members 20 and 20B is formed in a non-circular shape as in the electric wire bundles 10 and 10B with the covering member, the inner peripheral shape of the covering member 20 is changed to the outer peripheral shape of the covering members 20 and 20B. By forming the corresponding non-circular shape (similar and slightly smaller (smaller than the thickness necessary for protection)), the thickness of the covering member can be effectively equalized.

もっとも、図７に示す被覆部材付電線束１０Ｃのように、被覆部材２０Ｃの内周形状及び外周形状が、ホットプレス加工によって円柱状の外周側面形状に形成されていてもよい。この場合でも、被覆部材２０Ｃの厚み寸法をより均一化して、耐摩耗性の均一化を図ることができるという点では、上記実施形態と同様の効果を得ることができる。   However, like the wire bundle 10C with a covering member shown in FIG. 7, the inner peripheral shape and the outer peripheral shape of the covering member 20C may be formed into a cylindrical outer peripheral side surface shape by hot pressing. Even in this case, the same effect as that of the above embodiment can be obtained in that the thickness dimension of the covering member 20C can be made more uniform and the wear resistance can be made uniform.

＜被覆部材付電線束の製造方法＞
被覆部材付電線束１０の製造方法について説明する。 <Method for producing wire bundle with covering member>
The manufacturing method of the electric wire bundle 10 with a covering member is demonstrated.

まず、図８〜図１０に示すように、シート状の不織材料２００のうち一端側部分２００ａをホットプレス加工する。   First, as shown in FIGS. 8 to 10, one end portion 200 a of the sheet-like nonwoven material 200 is hot-pressed.

すなわち、図８及び図９に示すように、シート状（ここでは、方形シート状）の不織材料２００の一端側部分２００ａを加熱及び型２１０で加圧して、当該一端側部分２００ａの両面を硬化させた硬化加工面２０２ａに形成する。   That is, as shown in FIGS. 8 and 9, one end side portion 200a of a sheet-like (here, rectangular sheet-like) non-woven material 200 is heated and pressurized with a mold 210, and both sides of the one end side portion 200a are applied. It forms in the hardened hardened surface 202a.

ここで、不織材料２００として、上記したように、加熱工程を経ることにより硬くなることが可能な不織材料を用いることができる。このような不織材料として、基本繊維と、これと絡み合う接着樹脂（バインダとも呼ばれる）とを含むものを用いることができる。接着樹脂は、基本繊維の融点よりも低い融点（例えば、１１０℃〜１１５℃）を有する樹脂である。不織材料を基本繊維の融点よりも低くかつ接着樹脂の融点よりも高い加工温度に加熱すると、接着樹脂が溶融して基本繊維間に染みこむ。その後、不織材料が接着樹脂の融点よりも低い温度になると、基本繊維同士を結合した状態で接着樹脂が固化する。これより、不織材料が加熱前の状態よりも硬くなり、加熱時の成形形状に維持される。   Here, as described above, a nonwoven material that can be hardened through a heating process can be used as the nonwoven material 200. As such a non-woven material, a material containing a basic fiber and an adhesive resin (also called a binder) intertwined with the basic fiber can be used. The adhesive resin is a resin having a melting point (for example, 110 ° C. to 115 ° C.) lower than the melting point of the basic fiber. When the nonwoven material is heated to a processing temperature lower than the melting point of the basic fiber and higher than the melting point of the adhesive resin, the adhesive resin melts and soaks between the basic fibers. Thereafter, when the nonwoven material reaches a temperature lower than the melting point of the adhesive resin, the adhesive resin is solidified in a state where the basic fibers are bonded to each other. As a result, the nonwoven material becomes harder than the state before heating and is maintained in the molded shape during heating.

ただし、基本繊維は、接着樹脂の融点で繊維状態を保ち得る繊維であればよく、樹脂繊維の他、ガラス繊維等の各種繊維を用いることができる。また、接着樹脂としては、基本繊維の融点よりも低い融点を持つ熱可塑性樹脂繊維を用いることができる。接着樹脂は、粒状であっても繊維状であってもよい。また、芯繊維の外周に接着樹脂層を形成してバインダ繊維を構成し、これを基本繊維と絡み合わせるようにしてもよい。この場合の芯繊維としては、上記基本繊維と同材料のものを用いることができる。   However, the basic fiber may be any fiber that can maintain the fiber state at the melting point of the adhesive resin, and various fibers such as glass fibers can be used in addition to the resin fibers. As the adhesive resin, thermoplastic resin fibers having a melting point lower than that of the basic fiber can be used. The adhesive resin may be granular or fibrous. Alternatively, an adhesive resin layer may be formed on the outer periphery of the core fiber to form a binder fiber, which may be entangled with the basic fiber. As the core fiber in this case, the same material as the basic fiber can be used.

基本繊維と接着樹脂の組み合わせとしては、基本繊維をＰＥＴ（ポリエチレンテレフタレート）の樹脂繊維とし、接着樹脂をＰＥＴとＰＥＩ（ポリエチレンイソフタレート）の共重合樹脂とした例が挙げられる。この場合、基本繊維の融点はおよそ２５０℃であり、接着樹脂の融点は１１０℃〜１５０℃である。このため、不織材料を１１０℃〜２５０℃の温度に加熱すると、接着樹脂が溶融し、溶融せずに繊維状を保つ基本繊維間に染込む。そして、不織材料が接着樹脂の融点よりも低い温度になると、基本繊維同士を結合した状態で接着樹脂が固化し、不織材料は硬くなって加熱時の成形形状を維持する。また、この際、不織材料同士が重ね合されていると、前記接着樹脂が不織材料同士を接合する。   Examples of the combination of the basic fiber and the adhesive resin include an example in which the basic fiber is a resin fiber of PET (polyethylene terephthalate) and the adhesive resin is a copolymer resin of PET and PEI (polyethylene isophthalate). In this case, the melting point of the basic fiber is approximately 250 ° C., and the melting point of the adhesive resin is 110 ° C. to 150 ° C. For this reason, when the nonwoven material is heated to a temperature of 110 ° C. to 250 ° C., the adhesive resin is melted and soaked between the basic fibers that keep the fiber shape without melting. When the nonwoven material is at a temperature lower than the melting point of the adhesive resin, the adhesive resin is solidified in a state where the basic fibers are bonded to each other, and the nonwoven material becomes hard and maintains the molded shape during heating. At this time, if the nonwoven materials are overlapped, the adhesive resin joins the nonwoven materials.

かかる不織材料２００の一端部は、ヒーター等の加熱機構２１１が組込まれた上下の型２１０の対向面間で挟まされる。これにより、不織材料２００の一端部が加熱圧縮され、当該部分において接着樹脂が溶融する。もっとも、不織材料２００の一方面だけが加熱されていてもよい。   One end portion of the nonwoven material 200 is sandwiched between opposing surfaces of the upper and lower molds 210 in which a heating mechanism 211 such as a heater is incorporated. Thereby, the one end part of the nonwoven material 200 is heat-compressed, and adhesive resin fuse | melts in the said part. However, only one side of the nonwoven material 200 may be heated.

そして、この加熱後、図１０に示すように、接着樹脂が完全に硬化する前の段階で、不織材料２００の一端部が、棒状部材２２０に巻付けられる。棒状部材２２０は、ここでは、非円形棒状部材（より具体的には、三角棒状部材）であり、金属等で形成されている。不織材料２００の一端部が棒状部材２２０に巻付けられた状態で接着樹脂が冷却硬化することで、不織材料２００の一端側部分２００ａの外周形状が当該棒状部材２２０の外周形状に応じた形状（ここでは、非円形状、より具体的には、三角形）を呈するように、当該一端側部分２００ａが筒状に加工される。なお、不織材料２００の一端側部分２００ａが冷却固化した後、棒状部材２２０は不織材料２００から抜かれる。なお、図１０〜図１２では厚みはほとんど無いものとして不織材料２００は簡略化して表されている。   Then, after this heating, as shown in FIG. 10, one end of the nonwoven material 200 is wound around the rod-shaped member 220 at a stage before the adhesive resin is completely cured. Here, the bar-shaped member 220 is a non-circular bar-shaped member (more specifically, a triangular bar-shaped member), and is formed of metal or the like. The adhesive resin cools and cures in a state where one end of the nonwoven material 200 is wound around the rod-shaped member 220, so that the outer peripheral shape of the one-end side portion 200 a of the nonwoven material 200 corresponds to the outer peripheral shape of the rod-shaped member 220. The one end side portion 200a is processed into a cylindrical shape so as to exhibit a shape (here, a non-circular shape, more specifically, a triangle). In addition, after the one end side part 200a of the nonwoven material 200 is cooled and solidified, the rod-shaped member 220 is pulled out of the nonwoven material 200. 10 to 12, the non-woven material 200 is shown in a simplified manner assuming that there is almost no thickness.

次に、図１１及び図１２に示すように、いずれかの硬化加工面２０２ａを内周側にして電線束１２の外周りに接触させるようにしつつ、不織材料２００を電線束１２に巻付けて被覆部材２０を形成する。   Next, as shown in FIGS. 11 and 12, the non-woven material 200 is wound around the electric wire bundle 12 while making any one of the hardened surfaces 202 a to be the inner peripheral side so as to contact the outer periphery of the electric wire bundle 12. Thus, the covering member 20 is formed.

すなわち、まず、図１１に示すように、不織材料２００のうち筒状に形成した部分内に電線束１２を配設する。この作業は、当該筒状部分内に電線束１２を挿入して行ってもよいし、或は、一旦筒状部分を直線状に伸し、電線束１２に巻付けるようにしてもよい。   That is, first, as shown in FIG. 11, the electric wire bundle 12 is arranged in a portion of the nonwoven material 200 formed in a cylindrical shape. This operation may be performed by inserting the wire bundle 12 into the tubular portion, or the tubular portion may be once straightened and wound around the wire bundle 12.

この後、図１２に示すように、不織材料２００のうちの残りの他端側部分２００ｂを電線束１２のさらに外周に巻付ける。   Thereafter, as shown in FIG. 12, the remaining other end portion 200 b of the nonwoven material 200 is wound around the outer periphery of the wire bundle 12.

そして、図１３に示すように、被覆部材２０の外周面をホットプレス加工する。このホットプレス加工は、例えば、次に説明するホットプレス用成形型２３０を用い行うことができる。   And as shown in FIG. 13, the outer peripheral surface of the coating | coated member 20 is hot-press processed. This hot pressing can be performed using, for example, a hot pressing mold 230 described below.

すなわち、ホットプレス用成形型２３０は、下型２３２と、上型２３４とを備える。   That is, the hot press mold 230 includes a lower mold 232 and an upper mold 234.

下型２３２は、熱伝導性に優れた金属等により形成された部材であり、その一主面（上面）に下型面２３３が形成されている。下型面２３３は、概略的には、上方および両端部に開口する断面略矩形溝状に形成されている。   The lower mold 232 is a member formed of a metal or the like having excellent thermal conductivity, and a lower mold surface 233 is formed on one main surface (upper surface) thereof. The lower mold surface 233 is generally formed in a substantially rectangular groove shape that is open at the top and both ends.

上型２３４は、熱伝導性に優れた金属等により形成された長尺部材であり、その一主面（下面）に突出部２３５が形成されている。突出部２３５の先端部にＶ字状の溝が形成されており、この溝内面が上型面２３６として機能する。この上型面２３６が下型面２３３内に配置されることにより、上型面２３６と下型面２３３との間で、断面三角形状の被覆部材２０を形成可能な断面三角形状のスペースが形成される。下型面２３３及び上型面２３６の形状は、形成対象となる被覆部材の外周形状に応じた形状に形成される。なお、下型２３２、上型２３４には、ヒーター等の加熱機構２３２ａ、２３４ａが設けられる。   The upper mold 234 is a long member formed of a metal or the like having excellent thermal conductivity, and a protrusion 235 is formed on one main surface (lower surface) thereof. A V-shaped groove is formed at the tip of the protrusion 235, and the inner surface of the groove functions as the upper mold surface 236. By arranging the upper mold surface 236 in the lower mold surface 233, a space having a triangular cross section capable of forming the covering member 20 having a triangular cross section is formed between the upper mold surface 236 and the lower mold surface 233. Is done. The shapes of the lower mold surface 233 and the upper mold surface 236 are formed in a shape corresponding to the outer peripheral shape of the covering member to be formed. The lower mold 232 and the upper mold 234 are provided with heating mechanisms 232a and 234a such as heaters.

そして、上記のように電線束１２に巻付けられた不織材料２００（被覆部材２０）を上記下型面２３３内に配設する。この後、上型２３４の突出部２３５を下型面２３３内に挿入する。すると、上型面２３６と下型面２３３との間で、不織材料２００（被覆部材２０）が加熱及び加圧される。これにより、不織材料２００（被覆部材２０）の外周形状が非円形である三角柱状を呈するようにホットプレス加工される。この後冷却されると、被覆部材２０の外周が硬化し、所定形状に維持されると共に、不織材料２００が層間で接合されて、所定形状が維持される。   Then, the non-woven material 200 (the covering member 20) wound around the wire bundle 12 as described above is disposed in the lower mold surface 233. Thereafter, the protruding portion 235 of the upper mold 234 is inserted into the lower mold surface 233. Then, the nonwoven material 200 (covering member 20) is heated and pressurized between the upper mold surface 236 and the lower mold surface 233. As a result, the non-woven material 200 (the covering member 20) is hot-pressed so that the outer peripheral shape is a non-circular triangular prism shape. Thereafter, when cooled, the outer periphery of the covering member 20 is cured and maintained in a predetermined shape, and the non-woven material 200 is joined between the layers to maintain the predetermined shape.

この製造方法により、内周面がホットプレス加工された内周側加工面に形成された被覆部材２０を容易に形成することができる。   By this manufacturing method, the covering member 20 formed on the inner peripheral side processed surface whose inner peripheral surface is hot pressed can be easily formed.

｛変形例｝
なお、上記実施形態では、被覆部材２０の外周面をホットプレス加工していたが、これは必須ではない。電線束１２に巻付けられた不織材料の外周に粘着テープを巻付ける等して、不織材料が電線束１２を覆った状態を維持するようにしてもよい。 {Modifications}
In the above embodiment, the outer peripheral surface of the covering member 20 is hot-pressed, but this is not essential. You may make it maintain the state which the nonwoven material covered the wire bundle 12 by winding an adhesive tape around the outer periphery of the nonwoven material wound around the wire bundle 12.

また、上記各実施形態及び各変形例で説明した各構成は、相互に矛盾しない限り適宜組合わせることができる。   Moreover, each structure demonstrated by said each embodiment and each modification can be suitably combined unless it mutually contradicts.

以上のようにこの発明は詳細に説明されたが、上記した説明は、すべての局面において、例示であって、この発明がそれに限定されるものではない。例示されていない無数の変形例が、この発明の範囲から外れることなく想定され得るものと解される。   As described above, the present invention has been described in detail. However, 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 被覆部材付電線束
１２ 電線束
１４ 電線
２０、２０Ｂ、２０Ｃ 被覆部材
２２ 内周側加工面
２６ 外周側加工面
２００ 不織材料
２００ａ （不織材料の）一端側部分
２０２ａ 硬化加工面 10, 10B, 10C Wire bundle with covering member 12 Wire bundle 14 Wire 20, 20, B, 20C Cover member 22 Inner peripheral side processed surface 26 Outer peripheral side processed surface 200 Nonwoven material 200a (nonwoven material) one end side portion 202a Curing process surface

Claims (5)

電線束と、
前記電線束を覆う不織材料によって形成され、内周面がホットプレス加工された内周側加工面に形成されると共に、前記内周側加工面が前記電線束の外周りに接している被覆部材と、
を備え、
前記被覆部材の外周面がホットプレス加工された外周側加工面に形成され、
前記被覆部材の外周形状が非円形状を呈するように、前記被覆部材の外周面がホットプレス加工されている、被覆部材付電線束。 A bundle of wires,
A coating formed of a non-woven material that covers the wire bundle, the inner peripheral surface being formed on the inner peripheral side processed surface that has been hot-pressed, and the inner peripheral side processed surface being in contact with the outer periphery of the wire bundle Members,
Equipped with a,
The outer peripheral surface of the covering member is formed on the outer peripheral side processed surface that has been hot pressed,
A wire bundle with a covering member , wherein the outer peripheral surface of the covering member is hot-pressed so that the outer peripheral shape of the covering member exhibits a non-circular shape . 請求項１記載の被覆部材付電線束であって、
前記被覆部材の内周形状が、前記被覆部材の外周形状が呈する非円形状に応じた形状に形成されている、被覆部材付電線束。 A wire bundle with a covering member according to claim 1,
An electric wire bundle with a covering member , wherein the inner peripheral shape of the covering member is formed in a shape corresponding to the noncircular shape exhibited by the outer peripheral shape of the covering member. 請求項１又は請求項２に記載の被覆部材付電線束であって、
前記被覆部材は、少なくとも一端側部分の一方面がホットプレス加工により硬化加工面に形成されたシート状の不織材料が、前記硬化加工面を内周側にして前記電線束に巻付けられることによって形成されている、被覆部材付電線束。 A wire bundle with a covering member according to claim 1 or 2,
In the covering member, a sheet-like nonwoven material in which at least one surface of one end side portion is formed into a hardened surface by hot pressing is wound around the wire bundle with the hardened surface being an inner peripheral side. An electric wire bundle with a covering member formed by (a)シート状に形成された不織材料のうち、少なくとも一端側部分の一方面をホットプレス加工により硬化加工面に形成する工程と、  (a) Of the nonwoven material formed in a sheet shape, a step of forming at least one surface of one end side portion on a hardened surface by hot pressing,
(b)前記硬化加工面を内周側にして電線束の外周りに接触させるようにしつつ、前記不織材料を前記電線束に巻付けて被覆部材を形成する工程と、  (b) a step of forming a covering member by winding the non-woven material around the wire bundle, while bringing the cured surface into contact with the outer periphery of the wire bundle,
を備え、  With
(c)前記被覆部材の外周面をホットプレス加工する工程をさらに備え、  (c) further comprising a step of hot pressing the outer peripheral surface of the covering member,
前記工程(c)において、前記被覆部材の外周形状が非円形状を呈するように、前記被覆部材の外周面をホットプレス加工する、被覆部材付電線束の製造方法。  A method of manufacturing a wire bundle with a covering member, wherein in step (c), the outer peripheral surface of the covering member is hot-pressed so that the outer peripheral shape of the covering member exhibits a non-circular shape. 請求項４記載の被覆部材付電線束の製造方法であって、  It is a manufacturing method of the electric wire bundle with a covering member according to claim 4,
前記工程(a)において、前記被覆部材の一端側部分の内周形状が非円形状を呈するように、前記不織材料の一端側部分を非円形筒状に加工し、  In the step (a), the one end side portion of the nonwoven material is processed into a non-circular cylindrical shape so that the inner peripheral shape of the one end side portion of the covering member exhibits a non-circular shape.
前記工程(c)において、前記被覆部材の外周形状が前記被覆部材の一端側部分の非円形筒状に応じた形状を呈するように、前記被覆部材の外周面をホットプレス加工する、被覆部材付電線束の製造方法。  In the step (c), the outer peripheral surface of the covering member is hot-pressed so that the outer peripheral shape of the covering member exhibits a shape corresponding to the noncircular cylindrical shape of the one end side portion of the covering member. A method of manufacturing an electric wire bundle.

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