JP2019009859A - Cable cover, cable, and production method therefor - Google Patents

Cable cover, cable, and production method therefor Download PDF

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JP2019009859A
JP2019009859A JP2017121366A JP2017121366A JP2019009859A JP 2019009859 A JP2019009859 A JP 2019009859A JP 2017121366 A JP2017121366 A JP 2017121366A JP 2017121366 A JP2017121366 A JP 2017121366A JP 2019009859 A JP2019009859 A JP 2019009859A
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cable
tubular
tubular portion
resin layer
intermediate resin
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JP6830040B2 (en
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明宏 深山
Akihiro Miyama
明宏 深山
西村 和彦
Kazuhiko Nishimura
和彦 西村
幸聞 彌永
Koki Yanaga
幸聞 彌永
松永 大輔
Daisuke Matsunaga
大輔 松永
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Daiden Co Inc
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Daiden Co Inc
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Abstract

To provide a cable cover which can be naturally and easily bent in a cable portion housing state, such that, while the wear resistance is ensured with use of a fluororesin layer, restraint of a cable portion housed therein is suppressed, stress is less likely to be transmitted to the cable portion, and no hardened portion is generated.SOLUTION: In a cover 20 for covering and protecting a cable portion 10, a tubular portion 21 through which the cable portion 10 passes is provided, fluororesin layers are disposed on the inner and outer sides of the tubular portion 21, and multiple recesses and protrusions are formed so as to be arranged on the tubular portion 21. Accordingly, when the cover 20 having the cable portion 10 housed therein comes into contact with another object near the cable or another portion of the cable as a result of movement of the entire cable formed of the cable portion 10 and the cover 20, contact of the tubular portion 21 with the other object or portion occurs only on protrusion portions 21c, whereby the contact area is made small so that the friction can be reduced. The entire cable can be smoothly moved, and wear thereof can be significantly suppressed.SELECTED DRAWING: Figure 1

Description

本発明は、工作機械や産業用ロボット等、固定部分に対し可動部が移動する装置における、固定部分と可動部との間で電力や制御信号等を伝える手段として使用されるケーブルのカバーに関する。   The present invention relates to a cable cover used as a means for transmitting electric power, a control signal, or the like between a fixed part and a movable part in an apparatus in which a movable part moves relative to the fixed part, such as a machine tool or an industrial robot.

工作機械や産業用ロボット等では、固定状態の装置本体に対し移動する機構部分を用いて、加工や搬送、実装等の複雑な作業を実行する仕組みであり、こうした作業を実行する機構部分は、固定の装置本体に対して所定の範囲で動く可動部となっているが、こうした可動部に設けられた様々な機構を適切に動作させるために、可動部と固定状態の装置本体との間は、電力を送給したり制御信号を伝えるケーブルや、油圧や空気圧を送給する管等で接続されている。   In machine tools, industrial robots, etc., it is a mechanism that performs complex work such as processing, conveyance, mounting, etc. using a mechanism part that moves relative to the fixed device body, and the mechanism part that performs such work is Although it is a movable part that moves within a predetermined range with respect to the fixed apparatus main body, in order to properly operate various mechanisms provided in such a movable part, there is a gap between the movable part and the fixed apparatus main body. They are connected by cables for supplying electric power and transmitting control signals, pipes for supplying hydraulic pressure and air pressure, and the like.

このような装置において、可動部と固定部分との間に設けられるケーブル等は、適度な可撓性を有して、可動部の移動に追随して動くことから、ケーブル等と他の物体あるいはケーブル等自体の他部分との接触、摩擦が生じることとなる。このため、装置が用いられる環境によっては、ケーブル等の摩耗により粉塵が発生することによる悪影響を避ける必要があった。この他、装置が用いられる環境によっては、ケーブル等に耐熱性や耐薬品性を付与したり、ケーブル等の樹脂製被覆表面からのアウトガスによるトラブル防止を図る必要もあった。   In such a device, the cable or the like provided between the movable part and the fixed part has moderate flexibility and moves following the movement of the movable part. Contact and friction with other parts of the cable itself will occur. For this reason, depending on the environment in which the apparatus is used, it is necessary to avoid the adverse effects caused by the generation of dust due to wear of cables and the like. In addition, depending on the environment in which the apparatus is used, it is necessary to give heat resistance and chemical resistance to the cable and to prevent troubles caused by outgas from the resin-coated surface of the cable and the like.

こうしたケーブル等における摩耗を抑えたり、十分な耐熱性や耐薬品性を確保したり、アウトガス抑制を実現可能とするものとして、ケーブル等のシースとしてフッ素樹脂を用いるものが従来から提案されている。その一例として、特開2006−19125号公報に開示されるものがある。   In order to suppress such wear in cables and the like, to secure sufficient heat resistance and chemical resistance, and to realize outgas suppression, there have been conventionally proposed ones using a fluororesin as a sheath of a cable or the like. One example is disclosed in Japanese Patent Application Laid-Open No. 2006-19125.

特開2006−19125号公報JP 2006-19125 A

従来のケーブルは前記特許文献1に示される構成となっており、フッ素樹脂製シースの安定した性質に基づいて、摩耗による粉塵の発生等を防止できる。
しかしながら、前記特許文献で示されるような従来のケーブルでは、PTFE製シース部分が各ケーブル本体(同軸ケーブル)と面接触状態で密着していることから、ケーブル全体を動かすと各ケーブル本体とシースとの変形状態の差異に起因するストレスが、各ケーブル本体に加わり、耐久性を低下させ、断線のリスクを高めるなどの悪影響を与えるという課題を有していた。
The conventional cable has a configuration shown in Patent Document 1 and can prevent generation of dust due to wear based on the stable property of the fluororesin sheath.
However, in the conventional cable as shown in the above-mentioned patent document, since the PTFE sheath portion is in close contact with each cable body (coaxial cable) in a surface contact state, when the entire cable is moved, each cable body and sheath The stress caused by the difference in deformation state is applied to each cable main body, and there is a problem that it has an adverse effect such as decreasing durability and increasing risk of disconnection.

また、PTFE製シース部分がその一部の焼結により一体化されているため、こうした焼結部分の硬質化の影響を受けて、PTFE製シース部分の可撓性や柔軟性等が、各ケーブル本体のそれらに対し大きく劣る状態となっており、ケーブル全体を動かす場合に、変形しにくいシースによる制約でケーブル全体が所望の屈曲状態にならず、ケーブルを接続した可動部の挙動やケーブル自体に悪影響を及ぼすおそれがあることに加え、シースの硬質化した焼結一体化部分にはケーブルが動くごとにストレスが加わり、シースの破損等のトラブルに繋がりやすいという課題を有していた。   Also, since the PTFE sheath part is integrated by sintering part of the PTFE sheath part, the flexibility and flexibility of the PTFE sheath part are affected by the hardening of the sintered part. The main body is inferior to those of the main body, and when the entire cable is moved, the entire cable is not in the desired bent state due to restrictions due to the sheath that is difficult to deform, and the behavior of the movable part connected to the cable and the cable itself In addition to the possibility of adverse effects, stress was applied to the hardened sintered integrated portion of the sheath every time the cable moved, and there was a problem that the sheath was liable to be damaged.

本発明は前記課題を解消するためになされたもので、最外層のフッ素樹脂層により耐摩耗性を確保しつつ、収容した内側のケーブル部に対する拘束を抑えて、ケーブル全体を動かす際にケーブル部にストレスが加わりにくく、且つ、硬化部分を生じさせず、ケーブル部収容状態で無理なく容易に屈曲可能な、ケーブル用カバー、及び、このカバーとケーブル部を組み合わせたケーブル、並びに、これらカバーやケーブルの製造方法を提供することを目的とする。   The present invention has been made in order to solve the above-mentioned problem, while securing the wear resistance by the outermost fluororesin layer, restraining the restraint on the accommodated inner cable part, and moving the entire cable part. , A cable cover, a cable combining this cover and the cable portion, and these covers and cables that are hard to be stressed and do not cause a hardened portion and can be bent easily and easily in the state where the cable portion is accommodated. It aims at providing the manufacturing method of.

本発明に係るケーブル用カバーは、中間樹脂層の内外両側にフッ素樹脂層をそれぞれ一体に配置した積層管壁構造の管状体とされて、内部に中空部分を設けられてなる管状部と、当該管状部外面から突出する状態として管状部と一体に配設される、管状部長手方向に連続する突条部とを備え、前記管状部が、積層構造の一の管壁部分と、当該一の管壁部分の中間樹脂層及び二つのフッ素樹脂層とはそれぞれ連続しない他の中間樹脂層及び二つのフッ素樹脂層による積層構造である他の管壁部分とを有し、前記突条部は、管状部における一の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層と、管状部における一の管壁部分における中間樹脂層及び他の管壁部分における中間樹脂層と一体化した中間樹脂層と、管状部における他の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層との積層構造として形成されたものであり、前記管状部の、一の管壁部分と他の管壁部分の少なくとも一方における、少なくとも外面に、略同じ大きさの多数の凹凸が、管状部長手方向に並べて形成されるものである。   The cable cover according to the present invention is a tubular body having a laminated tube wall structure in which a fluororesin layer is integrally disposed on both the inner and outer sides of an intermediate resin layer, and a tubular portion having a hollow portion therein, A projecting ridge portion that is disposed integrally with the tubular portion as a state of projecting from the outer surface of the tubular portion, and that is continuous in the longitudinal direction of the tubular portion. The intermediate resin layer of the tube wall portion and the two fluororesin layers are not continuous with the other intermediate resin layer and the other tube wall portion which is a laminated structure of the two fluororesin layers, and the protruding portion is, A fluororesin layer that is integrated and continuous with the outer fluororesin layer in one tube wall portion in the tubular portion, and an intermediate resin layer in one tube wall portion in the tubular portion and an intermediate resin layer in another tube wall portion The intermediate resin layer and the tubular part Formed in a laminated structure with a continuous fluororesin layer integrated with the outer fluororesin layer in the other tube wall portion, and the one tubular wall portion and the other tubular wall portion of the tubular portion. A large number of irregularities having substantially the same size are formed side by side in the longitudinal direction of the tubular portion on at least the outer surface of at least one of them.

このように本発明においては、ケーブル部を覆って保護するカバーとして、ケーブル部が内部を通るようにした管状部を設けると共に、この管状部から突出する突条部を長手方向に連続させて一体配設し、フッ素樹脂層を管状部の内外に配置すると共に、管状部に凹凸を多数並べて形成することにより、ケーブル部とカバーからなるケーブル全体が動いて、ケーブル部を収めた管状部と、ケーブル近傍の他の物体やケーブルの他部位との接触が起こる際には、管状部における接触をその凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、ケーブル全体をスムーズに動かせると共に、摩耗の大幅な抑制が図れることとなる。また、カバーのケーブル部と接する内側部分にもフッ素樹脂層を配設することで、ケーブル全体の動きに伴ってケーブル部とカバーの管状部との接触、摺動が生じても、摩擦力が大きくならず、抵抗を抑えてケーブル全体の動きを滑らかなものにできると共に、接触部位の摩耗による粉塵の発生を確実に抑えられる。   As described above, in the present invention, as a cover for covering and protecting the cable portion, a tubular portion is provided so that the cable portion passes through the inside, and the protruding portion protruding from the tubular portion is continuous in the longitudinal direction and integrated. Arranging and arranging the fluororesin layer inside and outside the tubular portion, and by forming a large number of irregularities in the tubular portion, the entire cable consisting of the cable portion and the cover moves, and the tubular portion containing the cable portion, When contact with other objects in the vicinity of the cable or other parts of the cable occurs, the contact in the tubular portion can be caused only by the convex portion, the contact area can be reduced and friction can be reduced. It can be moved smoothly and the wear can be greatly suppressed. In addition, by arranging a fluororesin layer on the inner part of the cover in contact with the cable part, even if the cable part and the tubular part of the cover come into contact or slide with the movement of the entire cable, the frictional force is It does not increase, and the resistance can be suppressed to make the movement of the entire cable smooth, and the generation of dust due to wear of the contact portion can be surely suppressed.

さらに、複数のフッ素樹脂層の管状部としての一体化が、隣り合う中間樹脂層を介してされた状態にあり、フッ素樹脂層同士の直接接合部分を有しないことから、フッ素樹脂層に硬化部分を設けない構造にでき、フッ素樹脂層の本来の可撓性や柔軟性がほとんど維持されたカバーとして、ケーブル全体を所望の屈曲状態にするようにできる。   Furthermore, since the integration of the plurality of fluororesin layers as a tubular portion is in a state where the intermediate resin layers are adjacent to each other, and there is no direct bonding portion between the fluororesin layers, a cured portion is formed on the fluororesin layer. As a cover in which the original flexibility and flexibility of the fluororesin layer are almost maintained, the entire cable can be in a desired bent state.

また、本発明に係るケーブル用カバーは必要に応じて、前記管状部の各管壁部分における外側のフッ素樹脂層と中間樹脂層とが、互いに異なる色をそれぞれ付けられた状態として形成されるものである。   In addition, the cable cover according to the present invention is formed in a state in which the outer fluororesin layer and the intermediate resin layer in each tube wall portion of the tubular portion are given different colors as necessary. It is.

このように本発明においては、管状部の外面側のフッ素樹脂層と中間樹脂層の色を異ならせ、長期にわたる使用で仮にフッ素樹脂層の一部が摩耗して管状部表面から消失した場合、フッ素樹脂層の消失部分から中間樹脂層が一部露出して、大部分がフッ素樹脂層で覆われた管状部表面に中間樹脂層の異なる色が現れた状態となることにより、管状部外面のフッ素樹脂層の中から色の異なる中間樹脂層の露出箇所を明確且つ速やかに認識して、フッ素樹脂層の限度を超えた摩耗として把握可能となり、フッ素樹脂層の摩耗によるカバー劣化状態の判断が速やかに行え、交換等の対応に結び付けることができ、ケーブルの不具合による問題を未然に防止できる。   In this way, in the present invention, when the color of the fluororesin layer and the intermediate resin layer on the outer surface side of the tubular part is different, if a part of the fluororesin layer is worn away and disappears from the surface of the tubular part over a long period of use, A part of the intermediate resin layer is exposed from the disappearing part of the fluororesin layer, and a different color of the intermediate resin layer appears on the surface of the tubular part mostly covered with the fluororesin layer. The exposed part of the intermediate resin layer with different colors can be clearly and quickly recognized from the fluororesin layer, and it can be grasped as wear exceeding the limit of the fluororesin layer. This can be done quickly, and can be linked to replacement, etc., and problems due to cable defects can be prevented.

また、本発明に係るケーブル用カバーは必要に応じて、前記管状部の横幅方向における一又は複数の所定箇所に、管状部における一の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層と、管状部における一の管壁部分における中間樹脂層及び他の管壁部分における中間樹脂層と一体化した中間樹脂層と、管状部における他の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層との積層構造として形成される接合部が、管状部長手方向に連続して設けられ、管状部の中空部分が、接合部位置で複数に区画されるものである。   In addition, the cable cover according to the present invention is continuously integrated with one or a plurality of predetermined locations in the lateral width direction of the tubular portion integrally with the outer fluororesin layer in one tube wall portion of the tubular portion, as necessary. Fluororesin layer, intermediate resin layer in one tube wall portion in the tubular portion and intermediate resin layer integrated with the intermediate resin layer in the other tube wall portion, and outer fluororesin layer in the other tube wall portion in the tubular portion The joint portion formed as a laminated structure with a continuous fluororesin layer is provided continuously in the longitudinal direction of the tubular portion, and the hollow portion of the tubular portion is partitioned into a plurality at the joint portion position. is there.

このように本発明においては、管状部の横幅方向における一又は複数の所定箇所に積層構造の接合部を設けて、ケーブル部の通る管状部の中空部分が複数に分かれるようにし、ケーブル部を複数組に分けた状態で管状部内に配置できることにより、ケーブル部を用途や種類の違いに応じて分けて管状部に収容したり、絶縁やノイズ防止のために互いに離して配置する必要のある複数組のケーブル部を、分かれた中空部分にそれぞれ収容して完全に隔離することができ、ケーブル部とカバーを組み合わせたケーブル全体としての使い勝手を大きく向上させることができる。   As described above, in the present invention, a joining portion having a laminated structure is provided at one or a plurality of predetermined positions in the lateral width direction of the tubular portion so that the hollow portion of the tubular portion through which the cable portion passes is divided into a plurality of portions. Multiple sets that need to be arranged in the tubular part in a state of being divided into groups, so that the cable part can be accommodated in the tubular part according to the difference in use and type, or separated from each other for insulation and noise prevention The cable portions can be accommodated in separate hollow portions and completely isolated, and the usability of the entire cable combining the cable portion and the cover can be greatly improved.

また、本発明に係るケーブル用カバーは必要に応じて、前記突条部に、管状部の凹凸より管状部長手方向に長い多数の凹凸を、管状部長手方向に並べて形成されるものである。   Further, the cable cover according to the present invention is formed by arranging a plurality of projections and depressions, which are longer in the longitudinal direction of the tubular portion than the projections and depressions of the tubular portion, in the longitudinal direction of the tubular portion as necessary.

このように本発明においては、カバーの管状部長手方向に連続する突条部に、管状部のものと異なる所定の凹凸を繰り返し設けて、凹凸が長手方向に並んだ状態とすることにより、ケーブル全体が動いて、カバーにおける突条部と、ケーブル近傍の他の物体やケーブルの他部位との接触が起こる際に、突条部における接触をその凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、ケーブル全体をよりスムーズに動かせると共に、突条部における摩耗の抑制が図れる。また、突条部の凹凸の大きさを管状部の凹凸とは異ならせていることで、管状部と突条部における各振動モードに差異を生じさせ、ケーブルに生じる振動が特定の振動数に偏って大きくなるのを防いで、不要な振動を抑えることができる。   As described above, in the present invention, the protrusions continuous in the longitudinal direction of the tubular portion of the cover are repeatedly provided with predetermined irregularities different from those of the tubular portion so that the irregularities are aligned in the longitudinal direction. When the whole moves and contact occurs between the ridges on the cover and other objects near the cable or other parts of the cable, contact at the ridges can be caused only by the projections, reducing the contact area. Thus, friction can be reduced, the entire cable can be moved more smoothly, and wear at the ridges can be suppressed. Also, by making the unevenness of the ridges different from the unevenness of the tubular parts, the vibration modes in the tubular part and the ridges are different, and the vibration generated in the cable has a specific frequency. Unnecessary vibrations can be prevented and unnecessary vibrations can be suppressed.

また、本発明に係るケーブルは、心線を一又は複数本有して可撓性のあるケーブル部と、内側に前記ケーブル部を一又は複数組収容する中空部分のある略管状のカバーとを備えるケーブルにおいて、前記カバーが、中間樹脂層の内外両側にフッ素樹脂層をそれぞれ配置した積層管壁構造の管状体とされて、内部にケーブル部を収容可能な中空部分を設けられてなる管状部と、当該管状部外面から突出する状態として管状部と一体に配設される、管状部長手方向に連続する突条部とを備え、前記管状部が、積層構造の一の管壁部分と、当該一の管壁部分の中間樹脂層及び二つのフッ素樹脂層とはそれぞれ連続しない他の中間樹脂層及び二つのフッ素樹脂層による積層構造である他の管壁部分とを有し、前記突条部は、管状部における一の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層と、管状部における一の管壁部分における中間樹脂層及び他の管壁部分における中間樹脂層と一体化した中間樹脂層と、管状部における他の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層との積層構造として形成されたものであり、前記管状部の、一の管壁部分と他の管壁部分の少なくとも一方における、少なくとも外面に、略同じ大きさの多数の凹凸が、管状部長手方向に並べて形成されるものである。   The cable according to the present invention includes a flexible cable portion having one or a plurality of core wires, and a substantially tubular cover having a hollow portion that accommodates one or a plurality of sets of the cable portions inside. In the cable provided, the cover is a tubular body having a laminated tube wall structure in which a fluororesin layer is disposed on both the inner and outer sides of the intermediate resin layer, and a tubular portion provided with a hollow portion capable of accommodating the cable portion therein And a projecting ridge that is disposed integrally with the tubular portion as a state protruding from the outer surface of the tubular portion, and the tubular portion is one tube wall portion of the laminated structure, The intermediate resin layer of the one tube wall portion and the two fluororesin layers, and the other tube wall portion having a laminated structure of the other intermediate resin layer and the two fluororesin layers that are not continuous with each other, The part is one tube wall part in the tubular part A fluororesin layer that is integrated and continuous with the outer fluororesin layer, an intermediate resin layer that is integrated with an intermediate resin layer in one tube wall portion and an intermediate resin layer in another tube wall portion, and a tubular portion Formed in a laminated structure with a continuous fluororesin layer integrated with the outer fluororesin layer in the other tube wall portion of the tube portion of the one tube wall portion and the other tube wall portion of the tubular portion A large number of irregularities having substantially the same size are formed side by side in the longitudinal direction of the tubular portion on at least the outer surface of at least one of them.

このように本発明においては、ケーブル部を覆って保護するカバーとして、ケーブル部が内部を通る管状部を設けると共に、この管状部から突出する突条部を長手方向に連続させて一体配設し、フッ素樹脂層を管状部の内外に配置すると共に、管状部に凹凸を多数並べて形成することにより、ケーブル全体が動いて、ケーブル部を収めた管状部と、ケーブル近傍の他の物体やケーブルの他部位との接触が起こる際に、管状部における接触をその凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、ケーブル全体をスムーズに動かせると共に、摩耗の大幅な抑制が図れることとなる。また、カバーのケーブル部と接する内側部分にもフッ素樹脂層を配設することで、ケーブル全体の動きに伴ってケーブル部とカバーの管状部との接触、摺動が生じても、摩擦力が大きくならず、抵抗を抑えてケーブル部とカバーのそれぞれの動きを滑らかなものにできると共に、接触部位の摩耗による粉塵の発生を確実に抑えられる。   As described above, in the present invention, as a cover for covering and protecting the cable portion, a tubular portion through which the cable portion passes is provided, and the protruding portion protruding from the tubular portion is continuously arranged in the longitudinal direction. In addition to arranging the fluororesin layer inside and outside the tubular portion and forming a large number of irregularities in the tubular portion, the entire cable moves, and the tubular portion containing the cable portion and other objects and cables in the vicinity of the cable When contact with other parts occurs, the contact in the tubular part can be made only by the convex part, the contact area can be reduced and friction can be reduced, the entire cable can be moved smoothly, and wear is greatly suppressed Can be achieved. In addition, by arranging a fluororesin layer on the inner part of the cover in contact with the cable part, even if the cable part and the tubular part of the cover come into contact or slide with the movement of the entire cable, the frictional force is It does not increase, and resistance can be suppressed to make each movement of the cable portion and the cover smooth, and dust generation due to wear of the contact portion can be reliably suppressed.

さらに、カバーにおける複数のフッ素樹脂層の管状部としての一体化が、隣り合う中間樹脂層を介してされた状態にあり、フッ素樹脂層同士の直接接合部分を有しないことから、フッ素樹脂層に硬化部分を設けない構造にでき、フッ素樹脂層の本来の可撓性や柔軟性がほとんど維持されたカバーとして、ケーブル全体を所望の屈曲状態にするようにできる。   Furthermore, since the integration of a plurality of fluororesin layers in the cover as a tubular portion is in a state where the intermediate resin layers are adjacent to each other, and there is no direct joining portion between the fluororesin layers, As a cover in which the cured portion is not provided and the original flexibility and flexibility of the fluororesin layer are almost maintained, the entire cable can be in a desired bent state.

また、本発明に係るケーブル用カバーの製造方法は、熱可塑性樹脂からなる中間樹脂層の表裏両側にフッ素樹脂層をそれぞれ配置した積層構造の二つの帯状シートを、シートの幅方向両端部所定範囲における一方のフッ素樹脂層をそれぞれ除去した状態で、二つのシートを除去により中間樹脂層の露出した端部同士が向かい合うように重ね合わせ、二つのシートの重なり合う中間樹脂層端部同士を一体化して、内部に連続する中空部分のある管状部を形成し、当該管状部の少なくとも外面に、略同じ大きさの多数の凹凸を管状部長手方向に並べて形成するものである。   Also, the cable cover manufacturing method according to the present invention includes two belt-like sheets having a laminated structure in which fluororesin layers are respectively disposed on both front and back sides of an intermediate resin layer made of a thermoplastic resin. In the state where one of the fluororesin layers is removed, the two sheets are removed so that the exposed end portions of the intermediate resin layer face each other, and the overlapping intermediate resin layer end portions of the two sheets are integrated. A tubular portion having a hollow portion continuous inside is formed, and a large number of irregularities having substantially the same size are arranged in the longitudinal direction of the tubular portion on at least the outer surface of the tubular portion.

このように本発明においては、フッ素樹脂層を含む積層構造の二つの帯状シートを、一部のフッ素樹脂層を除去した状態でこの除去部分同士を向かい合わせるようにして重ね合わせ、フッ素樹脂層の除去により露出した二つの中間樹脂層を一体化して、中空部分のある管状部を形成し、且つ管状部には多数の凹凸を長手方向に並べて形成して、ケーブル部を収容可能なカバーとすることにより、カバーの内外にフッ素樹脂層を配置でき、カバー内部に通すケーブル部とカバーの管状部内面との接触、摺動が生じても、摩擦力が大きくならず、抵抗を抑えてケーブル部とカバーのそれぞれの動きを滑らかなものにできると共に、接触部位の摩耗による粉塵の発生を確実に抑えられる。また、ケーブル部を収めたカバー外面と、他の物体やカバーの他部位との接触が起こる場合も、カバーのうち管状部における接触をその凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、カバーとその内側のケーブル部をまとめてスムーズに動かせると共に、摩耗の大幅な抑制が図れる。   As described above, in the present invention, the two belt-like sheets having a laminated structure including the fluororesin layer are overlapped so that the removed portions face each other in a state where a part of the fluororesin layer is removed, The two intermediate resin layers exposed by the removal are integrated to form a tubular portion having a hollow portion, and the tubular portion is formed with a large number of irregularities arranged in the longitudinal direction to form a cover that can accommodate the cable portion. Therefore, the fluororesin layer can be placed inside and outside the cover, and even if contact or sliding occurs between the cable part that passes through the cover and the inner surface of the tubular part of the cover, the frictional force does not increase and the resistance is reduced. In addition, the movement of the cover and the cover can be made smooth, and the generation of dust due to wear at the contact portion can be reliably suppressed. In addition, even when contact occurs between the outer surface of the cover containing the cable part and another object or other part of the cover, contact in the tubular part of the cover can be caused only by the convex part, thereby reducing the contact area. Friction can be reduced, and the cover and the cable portion inside thereof can be moved smoothly together, and wear can be greatly suppressed.

さらに、二つのシートを、露出させた中間樹脂層端部同士を重ねて一体化して管状部としており、フッ素樹脂層同士を焼結等で直接接合していないことで、フッ素樹脂層を硬化させずに済み、フッ素樹脂層の本来の可撓性や柔軟性がほとんど維持されたカバーが得られ、カバーとこれに通したケーブル部を所望の屈曲状態にできることとなる。   Furthermore, the two intermediate sheets are integrated by overlapping the exposed end portions of the intermediate resin layer to form a tubular portion, and the fluororesin layer is cured by not directly joining the fluororesin layers by sintering or the like. Thus, a cover in which the original flexibility and flexibility of the fluororesin layer are almost maintained can be obtained, and the cover and the cable portion passing through the cover can be in a desired bent state.

また、本発明に係るケーブル用カバーの製造方法は必要に応じて、前記二つのシートを、シートの幅方向における両端部以外の一又は複数の所定箇所でも一方のフッ素樹脂層をそれぞれ除去した状態とし、二つのシートの重なり合う中間樹脂層端部同士を一体化するのと合わせて、前記所定箇所で露出して重なり合う中間樹脂層同士を一体化し、前記中空部分を複数に区画された状態で生じさせるものである。   The cable cover manufacturing method according to the present invention is a state in which one of the two sheets is removed from one or more predetermined portions other than both ends in the width direction of the sheet, if necessary. And the intermediate resin layer ends of the two sheets that overlap each other are integrated together, and the intermediate resin layers that are exposed and overlapped at the predetermined location are integrated, and the hollow portion is formed in a plurality of sections. It is something to be made.

このように本発明においては、二つの帯状シートを、幅方向両端部以外でもフッ素樹脂層を除去した状態とした上で、それぞれの除去により露出した二つの中間樹脂層を一体化して、中空部分を複数区画した状態とし、カバーの管状部にケーブル部を複数の組に分けて収容可能とすることにより、ケーブル部を用途や種類の違いに応じて分けて管状部に収容したり、絶縁やノイズ防止のために互いに離して配置する必要のある二組のケーブル部を、分かれた中空部分にそれぞれ収容して完全に隔離することができ、ケーブル部とカバーを組み合わせたケーブル全体としての使い勝手を大きく向上させることができる。   As described above, in the present invention, the two belt-like sheets are in a state in which the fluororesin layer has been removed at portions other than both ends in the width direction, and the two intermediate resin layers exposed by each removal are integrated to form a hollow portion. Is divided into a plurality of groups, and the cable portion can be divided into a plurality of sets and accommodated in the tubular portion of the cover, so that the cable portion can be accommodated in the tubular portion according to the difference in use and type, Two sets of cable parts that need to be placed apart from each other to prevent noise can be accommodated in separate hollow parts and completely isolated, making the entire cable combined with the cable part and cover easy to use. It can be greatly improved.

また、本発明に係るケーブル用カバーの製造方法は必要に応じて、前記二つのシートの中間樹脂層端部同士の一体化で、当該一体化部分が管状部外面から突出し、且つ管状部長手方向に連続する突条部をなし、当該突条部に、管状部の凹凸より管状部長手方向に長い多数の凹凸を、長手方向に並べて形成するものである。   In addition, the cable cover manufacturing method according to the present invention is integrated with the intermediate resin layer end portions of the two sheets, if necessary, and the integrated portion protrudes from the outer surface of the tubular portion, and the longitudinal direction of the tubular portion. The protrusions are formed with a plurality of protrusions and recesses that are longer in the longitudinal direction of the tubular part than the protrusions and recesses of the tubular part.

このように本発明においては、二つのシートにおけるフッ素樹脂層の除去により露出した中間樹脂層端部同士を一体化した後、この一体化部分からなる突条部に、管状部のものと異なる所定の凹凸を長手方向に並べて形成して、カバーを得ることにより、ケーブル部を収めたカバー外面と、他の物体やカバーの他部位との接触が起こる場合に、カバーのうち突条部における接触をその凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、カバーとその内側のケーブル部をよりスムーズに動かせると共に、突条部における摩耗の抑制が図れる。また、突条部の凹凸の大きさを管状部の凹凸とは異ならせていることで、ケーブル部を収めた管状部と突条部における各振動モードに差異を生じさせ、カバーとケーブル部に生じる振動が特定の振動数に偏って大きくなるのを防いで、不要な振動を抑えることができる。   As described above, in the present invention, after the ends of the intermediate resin layer exposed by removing the fluororesin layers in the two sheets are integrated with each other, the protruding portion formed of the integrated portion is different from the tubular portion in the predetermined portion. When the outer surface of the cover containing the cable part contacts with other objects or other parts of the cover, contact with the ridges of the cover is obtained by forming the concaves and convexes in the longitudinal direction and obtaining the cover. Can be generated only by the convex portion, the contact area can be reduced and friction can be reduced, the cover and the cable portion inside thereof can be moved more smoothly, and the wear at the ridge portion can be suppressed. In addition, by making the unevenness of the ridge part different from the unevenness of the tubular part, a difference is caused in each vibration mode between the tubular part containing the cable part and the ridge part. It is possible to prevent the generated vibration from being biased toward a specific frequency and to suppress unnecessary vibration.

また、本発明に係るケーブルの製造方法は、熱可塑性樹脂からなる中間樹脂層の表裏両側にフッ素樹脂層をそれぞれ配置した積層構造の二つの帯状シートを、シートの幅方向両端部所定範囲における一方のフッ素樹脂層をそれぞれ除去した状態で、二つのシートの前記除去により中間樹脂層が露出した部分同士が向かい合うように重ね合わせると共に、心線を一又は複数本有して可撓性のあるケーブル部を、ケーブル部とシートの長手方向を一致させて、二つのシートの除去されず残った一方のフッ素樹脂層の間に介在するようにし、二つのシートの重なり合う中間樹脂層端部同士を一体化して、前記ケーブル部を取り囲む管状部を形成し、当該管状部の少なくとも外面に、略同じ大きさの多数の凹凸を管状部長手方向に並べて形成するものである。   Further, the cable manufacturing method according to the present invention includes two belt-like sheets having a laminated structure in which fluororesin layers are respectively arranged on both front and back sides of an intermediate resin layer made of a thermoplastic resin. In a state where the fluororesin layers are removed, the two sheets are superposed so that the portions where the intermediate resin layers are exposed by the removal are opposed to each other, and the flexible cable has one or more cords. The cable section and the longitudinal direction of the sheet are aligned so that the two sheets are not removed and are interposed between the remaining fluororesin layers, and the intermediate resin layer ends of the two sheets are integrated together Forming a tubular portion surrounding the cable portion, and forming a plurality of concaves and convexes of substantially the same size on at least the outer surface of the tubular portion in the longitudinal direction of the tubular portion. A.

このように本発明においては、フッ素樹脂層を含む積層構造の二つの帯状シートを、一部のフッ素樹脂層を除去した状態でこの除去部分同士を向かい合わせるようにして重ね合わせつつ、二つのシートの除去されず残ったフッ素樹脂層の間にケーブル部を介在させるように配置し、フッ素樹脂層の除去により露出した二つの中間樹脂層を一体化して、ケーブル部が内部に収容された管状部を形成し、且つ管状部には多数の凹凸を長手方向に並べて形成して、ケーブル部をカバーで被覆したケーブルとすることにより、カバーの内外にフッ素樹脂層を配置でき、ケーブル部とカバーの管状部内面との接触、摺動が生じても、摩擦力が大きくならず、抵抗を抑えてケーブル部とカバーのそれぞれの動きを滑らかなものにできると共に、接触部位の摩耗による粉塵の発生を確実に抑えられる。また、ケーブル部を収めたカバー外面と、他の物体やカバーの他部位との接触が起こる場合も、カバーのうち管状部における接触をその凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、ケーブル全体をスムーズに動かせると共に、摩耗の大幅な抑制が図れる。   As described above, in the present invention, two belt-like sheets having a laminated structure including a fluororesin layer are overlapped so that the removed portions face each other in a state where a part of the fluororesin layer is removed. A tubular part in which the cable part is disposed between the fluororesin layer that is not removed and is integrated with the two intermediate resin layers exposed by removing the fluororesin layer. And the tubular portion is formed by arranging a large number of projections and depressions in the longitudinal direction so that the cable portion is covered with a cover, so that the fluororesin layer can be disposed inside and outside the cover. Even if contact or sliding with the inner surface of the tubular part occurs, the frictional force does not increase, the resistance can be suppressed and the movement of the cable part and the cover can be made smoother. It is surely suppress the generation of dust by Worn. In addition, even when contact occurs between the outer surface of the cover containing the cable part and another object or other part of the cover, contact in the tubular part of the cover can be caused only by the convex part, thereby reducing the contact area. Friction can be reduced, the entire cable can be moved smoothly, and wear can be greatly suppressed.

さらに、二つのシートを、露出させた中間樹脂層端部同士を重ねて一体化して管状部としており、フッ素樹脂層同士を焼結等で直接接合していないことで、フッ素樹脂層を硬化させずに済み、フッ素樹脂層の本来の可撓性や柔軟性がほとんど維持されたカバーが得られ、ケーブル部と合わせたケーブル全体を所望の屈曲状態にできることとなる。   Furthermore, the two intermediate sheets are integrated by overlapping the exposed end portions of the intermediate resin layer to form a tubular portion, and the fluororesin layer is cured by not directly joining the fluororesin layers by sintering or the like. Thus, a cover in which the original flexibility and flexibility of the fluororesin layer are almost maintained can be obtained, and the entire cable including the cable portion can be in a desired bent state.

本発明の第1の実施形態に係るケーブルの要部の斜視図である。It is a perspective view of the principal part of the cable which concerns on the 1st Embodiment of this invention. 本発明の第1の実施形態に係るケーブルの要部の側面図である。It is a side view of the principal part of the cable which concerns on the 1st Embodiment of this invention. 本発明の第1の実施形態に係るケーブルにおける突条部の拡大断面図である。It is an expanded sectional view of the protrusion part in the cable which concerns on the 1st Embodiment of this invention. 本発明の第1の実施形態に係るケーブルにおけるカバーの一体化工程説明図である。It is an integrated process explanatory drawing of the cover in the cable which concerns on the 1st Embodiment of this invention. 本発明の第1の実施形態に係るケーブルにおけるカバー凸部の摩耗状態説明図である。It is an abrasion state explanatory view of the cover convex part in the cable concerning a 1st embodiment of the present invention. 本発明の第1の実施形態に係るケーブルの他例における要部側面図である。It is a principal part side view in the other example of the cable which concerns on the 1st Embodiment of this invention. 本発明の第2の実施形態に係るケーブルの要部の斜視図である。It is a perspective view of the principal part of the cable which concerns on the 2nd Embodiment of this invention. 本発明の第2の実施形態に係るケーブルにおけるカバーの一体化工程説明図である。It is an integrated process explanatory drawing of the cover in the cable which concerns on the 2nd Embodiment of this invention. 本発明の第3の実施形態に係るケーブルの製造工程説明図である。It is manufacturing process explanatory drawing of the cable which concerns on the 3rd Embodiment of this invention.

(本発明の第1の実施形態)
以下、本発明の第1の実施形態に係るケーブルを前記図1ないし図5に基づいて説明する。
前記各図において、本実施形態に係るケーブル1は、心線を一又は複数本有して可撓性のあるケーブル部10と、このケーブル部10を複数並列した状態で被覆するカバー20とを備える構成である。
(First embodiment of the present invention)
Hereinafter, a cable according to a first embodiment of the present invention will be described with reference to FIGS.
In each said figure, the cable 1 which concerns on this embodiment has the cable part 10 which has one or more core wires, and is flexible, and the cover 20 which coat | covers this cable part 10 in the state arranged in parallel. It is the composition provided.

前記ケーブル部10は、電気や光を通す心線11aをシース11bで被覆して略円断面形状として形成されるものである。このケーブル部10が、並列状態でカバー20内に複数収容され、カバー20により略帯状に一体化されることとなる。   The cable portion 10 is formed in a substantially circular cross-sectional shape by covering a core wire 11a through which electricity or light passes with a sheath 11b. A plurality of the cable portions 10 are accommodated in the cover 20 in a parallel state, and are integrated into a substantially band shape by the cover 20.

これら複数のケーブル部10が、並列状態で連結一体化されていることで、ケーブル部10の並列方向と直交する向きに屈曲しやすく、それ以外の向きには屈曲しにくい状態が得られる。なお、ケーブル部は略円断面形状のものに限られず、複数の心線を並列状態でまとめてシースで被覆して一体化した平形や略矩形断面形状のものとすることもできる。   Since the plurality of cable portions 10 are connected and integrated in a parallel state, it is easy to bend in a direction orthogonal to the parallel direction of the cable portion 10 and it is difficult to bend in other directions. The cable portion is not limited to a substantially circular cross-sectional shape, and may be a flat shape or a substantially rectangular cross-sectional shape in which a plurality of core wires are integrated in a parallel state and covered with a sheath.

前記カバー20は、中間樹脂層23の内外両側にフッ素樹脂層24、25をそれぞれ配置した積層管壁構造の管状体とされて、内部にケーブル部10を収容可能な中空部分を設けられてなる管状部21と、この管状部21外面から突出する状態として管状部21と一体に配設される突条部22とを備える構成である。   The cover 20 is a tubular body having a laminated tube wall structure in which fluororesin layers 24 and 25 are disposed on both the inner and outer sides of the intermediate resin layer 23, and a hollow portion capable of accommodating the cable portion 10 is provided therein. It is the structure provided with the tubular part 21 and the protrusion part 22 arrange | positioned integrally with the tubular part 21 as a state which protrudes from this tubular part 21 outer surface.

前記管状部21は、中間樹脂層23の内外両側にフッ素樹脂層24、25がそれぞれ配置される積層構造の一の管壁部分21aと、この一の管壁部分21aにおける中間樹脂層23及び二つのフッ素樹脂層24、25とはそれぞれ連続しない他の中間樹脂層及び二つのフッ素樹脂層による積層構造である他の管壁部分21bとを有する構成である。   The tubular portion 21 includes one tube wall portion 21a having a laminated structure in which the fluororesin layers 24 and 25 are disposed on both the inner and outer sides of the intermediate resin layer 23, and the intermediate resin layers 23 and 2 in the one tube wall portion 21a. Each of the two fluororesin layers 24 and 25 has a configuration including another intermediate resin layer that is not continuous and another tube wall portion 21b that is a laminated structure of two fluororesin layers.

前記中間樹脂層23は、フッ素樹脂より融点の低いフッ素非含有の熱可塑性樹脂、例えば、ポリウレタン樹脂からなるものである。
前記フッ素樹脂層24、25は、例えば、PTFE(ポリテトラフルオロエチレン)やPFA(テトラフルオロエチレン・ペルフルオロエーテル共重合体)、FEP(テトラフルオロエチレン・ヘキサフルオロプロピレン共重合体)などを用いることができる。
The intermediate resin layer 23 is made of a fluorine-free thermoplastic resin having a melting point lower than that of the fluororesin, for example, a polyurethane resin.
For the fluororesin layers 24 and 25, for example, PTFE (polytetrafluoroethylene), PFA (tetrafluoroethylene / perfluoroether copolymer), FEP (tetrafluoroethylene / hexafluoropropylene copolymer), or the like is used. it can.

この管状部21の各管壁部分における外側のフッ素樹脂層25と中間樹脂層23とは、互いに異なる色をそれぞれ付けられた状態として形成される。例えば、フッ素樹脂層25が白色とされる場合、中間樹脂層23はそれと異なる色で、彩度や明度の差が大きく差異がわかりやすい、赤色や橙色とされる。この他、フッ素樹脂層25が有彩色の場合は、中間樹脂層23はそれと彩度や明度と共に色相も異なる所定色とされる。   The outer fluororesin layer 25 and the intermediate resin layer 23 in each tube wall portion of the tubular portion 21 are formed in a state in which different colors are given to each other. For example, when the fluororesin layer 25 is white, the intermediate resin layer 23 is a color different from that, and is red or orange with a large difference in saturation and lightness that is easy to understand. In addition, when the fluororesin layer 25 has a chromatic color, the intermediate resin layer 23 has a predetermined color that is different in hue from the saturation and brightness.

また、管状部21は、その一の管壁部分21aと他の管壁部分21bのいずれにも、略同じ大きさの多数の凹凸を管状部長手方向に並べて形成される構成である。これらの凹凸は、管状部21の管壁部分自体を波状に変形させたものであり、その大きさは管壁厚さより十分大きく、外面側の形状が内面側に反転して現れる。凹凸をなす凸部21cの管状部長手方向に並ぶ間隔は、等間隔に限られるものではなく、一部又は全部が不等間隔として形成される構成とすることもできる(図2参照)。   Further, the tubular portion 21 has a configuration in which a large number of irregularities having substantially the same size are arranged in the longitudinal direction of the tubular portion on both the one tube wall portion 21a and the other tube wall portion 21b. These irregularities are obtained by deforming the tube wall portion of the tubular portion 21 into a wave shape, the size of which is sufficiently larger than the tube wall thickness, and the shape of the outer surface appears to be reversed to the inner surface. The intervals in the longitudinal direction of the tubular portion of the convex portions 21c forming the irregularities are not limited to equal intervals, and some or all of them may be formed as unequal intervals (see FIG. 2).

この管状部21においては、外面の凸部21cが他の物体やケーブル1の他部に接触することとなる。一方、管状部21内面側においても、凸部21dのみがケーブル部10表面に接触する。こうした接触が凸部21c、21dに限定されることで、ケーブル全体の動きや屈曲位置の変化に応じて接触位置がずれ、摩擦が生じる際の、摩擦力の発生を最小限とすることができる。   In the tubular portion 21, the convex portion 21 c on the outer surface comes into contact with another object or the other portion of the cable 1. On the other hand, also on the inner surface side of the tubular portion 21, only the convex portion 21 d contacts the surface of the cable portion 10. Such contact is limited to the convex portions 21c and 21d, so that the generation of frictional force can be minimized when the contact position shifts and friction occurs according to the movement of the entire cable or the change of the bending position. .

この管状部21は、中間樹脂層23の表裏両側にフッ素樹脂層24、25をそれぞれ配置した積層構造の二つの帯状シート40を、シートの幅方向両端部所定範囲における一方のフッ素樹脂層24をそれぞれ除去した状態で、この除去により中間樹脂層23の露出した端部同士が向かい合うように重ね合わせ、これら二つのシート40の重なり合う中間樹脂層端部同士を、融着一体化して形成される。そして、向かい合った一方のフッ素樹脂層24の除去されなかった残り部分同士が、その間にケーブル部10を収容可能な中空部分を生じさせる。   The tubular portion 21 includes two belt-like sheets 40 having a laminated structure in which fluororesin layers 24 and 25 are respectively arranged on both front and back sides of the intermediate resin layer 23, and one fluororesin layer 24 in a predetermined range at both end portions in the width direction of the sheet. In the removed state, the exposed end portions of the intermediate resin layer 23 are overlapped with each other by the removal, and the overlapping intermediate resin layer end portions of the two sheets 40 are formed by fusion and integration. Then, the remaining portions of the one fluororesin layer 24 facing each other that are not removed cause a hollow portion that can accommodate the cable portion 10 therebetween.

前記突条部22は、管状部21形成のためのシート40の中間樹脂層23端部の融着の結果生じた、管状部長手方向に連続する所定幅の端縁部分である。
詳細には、突条部22は、管状部21における一の管壁部分21aにおける外側のフッ素樹脂層25と一体化して連続するフッ素樹脂層22aと、管状部21における一の管壁部分21aにおける中間樹脂層23及び他の管壁部分21bにおける中間樹脂層23と一体化した中間樹脂層22bと、管状部21における他の管壁部分における外側のフッ素樹脂層25と一体化して連続するフッ素樹脂層22cとの積層構造を有するものである。
The protruding portion 22 is an end portion having a predetermined width continuous in the longitudinal direction of the tubular portion, which is generated as a result of the fusion of the end portion of the intermediate resin layer 23 of the sheet 40 for forming the tubular portion 21.
Specifically, the protruding portion 22 is integrated with the outer fluororesin layer 25 in the one tube wall portion 21 a of the tubular portion 21 and continuous with the fluororesin layer 22 a, and in the one tube wall portion 21 a of the tubular portion 21. The intermediate resin layer 22b integrated with the intermediate resin layer 23 in the intermediate resin layer 23 and the other tube wall portion 21b, and the fluororesin integrated and continuous with the outer fluororesin layer 25 in the other tube wall portion of the tubular portion 21 It has a laminated structure with the layer 22c.

突条部22は、管状部21の一の管壁部分21aをなすシートと他の管壁部分21bをなすシートとを融着一体化して生じた部分であるが、二つのシート40における一体化する端部の大きさを適切に設定していることで、カバー20がケーブル部10を挿入された状態で全体として屈曲する状態においても、十分な一体化強度を有して、管状部21をなす一の管壁部分21aと他の管壁部分21bとの一体化した状態を無理なく維持できる。   The protruding portion 22 is a portion formed by fusing and integrating a sheet forming one tube wall portion 21 a of the tubular portion 21 and a sheet forming another tube wall portion 21 b, but is integrated in the two sheets 40. By appropriately setting the size of the end portion to be performed, even when the cover 20 is bent as a whole with the cable portion 10 inserted, the tubular portion 21 has sufficient integrated strength. An integrated state of one tube wall portion 21a and another tube wall portion 21b can be maintained without difficulty.

この突条部22には、管状部21の凹凸より管状部長手方向に長い多数の凹凸、すなわち、凹凸をなす凸部22dの長手方向にあらわれる間隔が管状部21の凸部21cの間隔より大きくなる凹凸を、管状部長手方向に並べて形成するようにしてもよい(図6参照)。この場合の突条部22における凸部22dの間隔も、等間隔に限られるものではなく、一部又は全部が不等間隔として形成される構成とすることができる。   The protrusion 22 has a large number of irregularities longer in the longitudinal direction of the tubular portion than the irregularities of the tubular portion 21, that is, the intervals in the longitudinal direction of the convex portions 22 d forming the irregularities are larger than the intervals of the convex portions 21 c of the tubular portion 21. The unevenness to be formed may be formed side by side in the longitudinal direction of the tubular portion (see FIG. 6). In this case, the interval between the convex portions 22d in the ridge portion 22 is not limited to an equal interval, and a part or all of the intervals may be formed as unequal intervals.

次に、本実施形態に係るケーブルのカバー製造過程及びケーブル使用状態について説明する。
はじめに、カバー20の製造過程について説明する。ここで、カバー20の材料となるシート40としては、中間樹脂層23の表裏両側にフッ素樹脂層24、25をそれぞれ配置され、且つ、中間樹脂層23とフッ素樹脂層25とが互いに異なる色をなすようにされた積層構造の二つの帯状シートを用いる。
Next, a cable cover manufacturing process and a cable use state according to the present embodiment will be described.
First, the manufacturing process of the cover 20 will be described. Here, as the sheet 40 used as the material of the cover 20, the fluororesin layers 24 and 25 are arranged on both the front and back sides of the intermediate resin layer 23, and the intermediate resin layer 23 and the fluororesin layer 25 have different colors. Two belt-like sheets having a laminated structure are used.

まず、二つのシート40において、シートの幅方向両端部所定範囲における一方のフッ素樹脂層24をそれぞれ除去して、中間樹脂層23が端から所定幅分露出した状態とする(図4(A)参照)。この除去により露出した中間樹脂層23の端部同士が向かい合うように二つのシート40を重ね合わせる。そして、これら二つのシート40の端部に外部から熱を加えて、二つのシートの重なり合う中間樹脂層端部同士を融着一体化する(図4(B)参照)。一体化は、中間樹脂層23同士の融着によりなされるため、シートの加熱は従来のフッ素樹脂同士を焼結一体化する場合のような高温で行う必要はなく、中間樹脂層23同士を一部溶融させる程度の温度(例えば、150〜170℃)でなされる。   First, in the two sheets 40, one fluororesin layer 24 in a predetermined range at both ends in the width direction of the sheet is removed, and the intermediate resin layer 23 is exposed from the end by a predetermined width (FIG. 4A). reference). The two sheets 40 are overlapped so that the ends of the intermediate resin layer 23 exposed by this removal face each other. Then, heat is applied to the end portions of these two sheets 40 from the outside, and the intermediate resin layer end portions where the two sheets overlap are fused and integrated (see FIG. 4B). Since the integration is performed by fusing the intermediate resin layers 23, it is not necessary to heat the sheet at a high temperature as in the case of sintering and integrating conventional fluororesins. It is made at a temperature (for example, 150 to 170 ° C.) to the extent of partial melting.

こうして二つのシート40端部の中間樹脂層同士を融着一体化することで、管状部21が形成される。そして、シート端部の融着の結果生じた管状部長手方向に連続する端縁部分が、突条部22となって、管状部21と突条部22を備えるカバー20が完成となる。
この時、一方のフッ素樹脂層24の除去されなかった残り部分同士が向かい合った部位間には、ケーブル部10を収容可能な中空部分26が生じる。
In this way, the tubular portion 21 is formed by fusing and integrating the intermediate resin layers at the ends of the two sheets 40. And the edge part which followed the tubular part longitudinal direction produced as a result of melt | fusion of the sheet | seat edge part becomes the protrusion part 22, and the cover 20 provided with the tubular part 21 and the protrusion part 22 is completed.
At this time, a hollow portion 26 that can accommodate the cable portion 10 is formed between the portions of the one fluororesin layer 24 that are not removed and face each other.

また、一体化した二つのシート40における、熱を加えた端部(突条部)と熱を加えていない部分(管状部)との加熱終了以降の収縮度合いの差異により、長手方向に縮む向きの力を受ける管状部21には、略同じ大きさの多数の凹凸が管状部長手方向に並んで形成された状態となる。
完成状態となったカバー20の中空部分26には、ケーブル部10が通されて、カバー20とケーブル部10が一体となった帯状のケーブル1が得られる。
Also, in the two integrated sheets 40, the direction of contraction in the longitudinal direction due to the difference in the degree of contraction after the end of heating between the end portion (projection portion) to which heat is applied and the portion (tubular portion) to which heat is not applied In the tubular portion 21 that receives this force, a large number of irregularities having substantially the same size are formed side by side in the longitudinal direction of the tubular portion.
The cable portion 10 is passed through the hollow portion 26 of the cover 20 in a completed state, and the band-like cable 1 in which the cover 20 and the cable portion 10 are integrated is obtained.

こうしてカバー20の内外にフッ素樹脂層24、25を配置すると共に、管状部21に凹凸を形成していることで、カバー20の管状部21内外での他との接触を凸部のみに限定することができ、接触面積を少なくして摩擦を軽減することができ、カバー20とその内側のケーブル部10からなるケーブル全体をスムーズに動かせる。   Thus, the fluororesin layers 24 and 25 are arranged inside and outside the cover 20, and the tubular portion 21 is formed with irregularities, so that the contact between the cover 20 and the inside and outside of the tubular portion 21 is limited to only the convex portions. It is possible to reduce the friction by reducing the contact area, and the entire cable including the cover 20 and the cable portion 10 inside thereof can be moved smoothly.

さらに、カバー20の管状部21は、二つのシート40を、露出させた中間樹脂層端部同士を重ねて融着一体化することで得られており、フッ素樹脂層同士を高温で加熱して直接接合していないことから、フッ素樹脂層24、25は硬化しておらず、フッ素樹脂層の本来の可撓性や柔軟性がほとんど維持されており、カバー20は問題なく所望の位置で屈曲可能であり、ケーブル全体としての屈曲を妨げることはない。   Furthermore, the tubular part 21 of the cover 20 is obtained by fusing and integrating the two sheets 40 by overlapping the exposed intermediate resin layer ends, and heating the fluororesin layers at a high temperature. Since the fluororesin layers 24 and 25 are not cured because they are not directly joined, the original flexibility and flexibility of the fluororesin layer are almost maintained, and the cover 20 is bent at a desired position without any problem. It is possible and does not prevent the entire cable from bending.

続いて、本実施形態に係るケーブルの使用状態について説明する。ケーブル1は、加工や搬送、実装等の複雑な作業を実行する機構部分が、固定の装置本体に対して所定の範囲で動く可動部となっている装置に適用され、その可動部と固定部分との間に設けられるものとする。   Then, the use condition of the cable which concerns on this embodiment is demonstrated. The cable 1 is applied to an apparatus in which a mechanism part that performs complicated operations such as processing, conveyance, and mounting is a movable part that moves within a predetermined range with respect to a fixed apparatus body. It shall be provided between.

ケーブル1は、前記装置における可動部の移動に追随して動くが、ケーブル1が動くと、ケーブル同士が接触したり、ケーブルと他の物体が接触する事態が生じる。しかし、こうした状況でも、ケーブル1のカバー20に凹凸があることで、接触部位が限定され、摩擦抵抗の発生箇所を少なくすることができ、ケーブル1は可動部の動きに対応してスムーズに動くこととなる。   The cable 1 moves following the movement of the movable part in the apparatus. However, when the cable 1 moves, the cables come into contact with each other, and a situation in which the cable and other objects come into contact with each other occurs. However, even in such a situation, since the cover 20 of the cable 1 is uneven, the contact part is limited, the number of occurrences of frictional resistance can be reduced, and the cable 1 moves smoothly according to the movement of the movable part. It will be.

また、カバー20表面のフッ素樹脂層25は他の物体との接触を経てもほとんど摩耗せず、摩耗による粉塵もほとんど出ない。特に、クリーンルームで使用される場合、クリーンルームの清浄度管理能力、例えば、空気中の塵埃除去システムの能力を超えるような粉塵を発生させないため、クリーンルームの清浄度に悪影響を及ぼすことはなく、クリーンルームで継続使用可能である。   Further, the fluororesin layer 25 on the surface of the cover 20 hardly wears even after contact with other objects, and dust due to wear hardly appears. In particular, when used in a clean room, it does not generate dust that exceeds the clean room cleanliness management capability, for example, the capacity of the dust removal system in the air. It can be used continuously.

ただし、長期にわたりケーブルの使用が続くと、他との接触が生じやすいカバー20の凸部21cでフッ素樹脂層25の摩耗が進行している場合があり、フッ素樹脂層25の摩耗度合いによっては中間樹脂層23の露出も起り得る。この中間樹脂層23の露出は、フッ素樹脂層25とは異なる色が表面にあらわれることで容易に識別できる(図5参照)。通常は、中間樹脂層23の露出をそのままにして使用を継続すると、中間樹脂層23が摩耗して粉塵が発生し、フッ素樹脂層25の摩耗の場合と異なりクリーンルームの清浄度を維持できないおそれがあるため、ケーブルを交換することとなる。   However, if the cable continues to be used for a long period of time, the fluororesin layer 25 may be worn at the convex portion 21c of the cover 20 that is likely to come into contact with others. Exposure of the resin layer 23 may also occur. The exposure of the intermediate resin layer 23 can be easily identified when a color different from that of the fluororesin layer 25 appears on the surface (see FIG. 5). Normally, if the use of the intermediate resin layer 23 is left as it is, the intermediate resin layer 23 is worn and dust is generated, and unlike the case where the fluororesin layer 25 is worn, there is a possibility that the cleanliness of the clean room cannot be maintained. Therefore, the cable will be replaced.

このように、本実施形態に係るケーブルにおいては、中間樹脂層23とフッ素樹脂層24、25を含む積層構造の二つの帯状シート40を、一部のフッ素樹脂層24を除去した状態でこの除去部分同士を向かい合わせるようにして重ね合わせ、フッ素樹脂層24の一部除去により露出した二つの中間樹脂層端部を一体化して、中空部分のある管状部21を形成し、且つ管状部21には多数の凹凸を長手方向に並べて形成して、カバー20とし、このカバー20でケーブル部10を覆って保護する構造とされる。これにより、ケーブル全体が動いて、ケーブル部10を収めたカバー20各部と、ケーブル近傍の他の物体やケーブルの他部位との接触が起こる際に、管状部21や突条部22における接触をそれらの凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、ケーブル全体をスムーズに動かせると共に、摩耗の大幅な抑制が図れることとなる。また、カバー20のケーブル部10と接する内側部分にもフッ素樹脂層24を配設できることで、ケーブル全体の動きに伴ってケーブル部10とカバー20の管状部21内面との接触、摺動が生じても、摩擦力が大きくならず、抵抗を抑えてケーブル部10とカバー20のそれぞれの動きを滑らかなものにでき、ケーブル部10に加わるストレスを抑制できると共に、接触部位の摩耗による粉塵の発生を確実に抑えられる。   As described above, in the cable according to the present embodiment, the two strip-like sheets 40 having a laminated structure including the intermediate resin layer 23 and the fluororesin layers 24 and 25 are removed in a state where a part of the fluororesin layer 24 is removed. The two intermediate resin layer ends exposed by partial removal of the fluororesin layer 24 are integrated to form a tubular portion 21 having a hollow portion, and the tubular portion 21 is The cover 20 is formed by arranging a large number of projections and depressions in the longitudinal direction, and the cable 20 is covered and protected by the cover 20. As a result, when the entire cable moves and each part of the cover 20 containing the cable part 10 comes into contact with other objects in the vicinity of the cable or other parts of the cable, contact with the tubular part 21 or the protrusion part 22 is prevented. It is generated only by these convex portions, the contact area can be reduced and friction can be reduced, the entire cable can be moved smoothly, and wear can be greatly suppressed. In addition, since the fluororesin layer 24 can be disposed on the inner portion of the cover 20 that contacts the cable portion 10, contact and sliding between the cable portion 10 and the inner surface of the tubular portion 21 of the cover 20 occur as the entire cable moves. However, the frictional force does not increase, the resistance can be suppressed and the movement of the cable part 10 and the cover 20 can be made smooth, the stress applied to the cable part 10 can be suppressed, and the generation of dust due to wear of the contact part Can be reliably suppressed.

さらに、二つのシート40を、露出させた中間樹脂層端部同士を重ねて一体化して管状部21としており、フッ素樹脂層同士を焼結等で直接接合していないことで、フッ素樹脂層を硬化させずに済み、フッ素樹脂層の本来の可撓性や柔軟性がほとんど維持されたカバー20が得られ、カバー20とこれに通したケーブル部10を所望の屈曲状態にできることとなる。   Further, the two intermediate sheets 40 are integrated by overlapping the exposed intermediate resin layer ends to form a tubular portion 21, and the fluororesin layers are not joined directly by sintering or the like. The cover 20 that does not need to be cured and that maintains the original flexibility and flexibility of the fluororesin layer is obtained, and the cover 20 and the cable portion 10 that passes through the cover 20 can be in a desired bent state.

なお、前記実施形態に係るケーブルにおいては、五本のケーブル部10をカバー20で並列一体化して帯状のケーブル1とする構成としているが、これに限らず、ケーブル部を五本以外の複数本並列一体化してケーブルとする構成としてもかまわない。また、ケーブル部としては、シースを有しない心線のみのものや、これら心線がシールド用導体で覆われたものとしてもよく、さらに、心線を有しない中空管状のチューブを、他のケーブル部同様に並列一体化して用いるようにしてもよい。   In addition, in the cable which concerns on the said embodiment, although the five cable parts 10 are integrated in parallel with the cover 20 and it is set as the strip | belt-shaped cable 1, it is not restricted to this, A plurality of cable parts other than five are provided. A configuration in which cables are integrated in parallel may be used. The cable portion may be only a core wire that does not have a sheath, or the core wire may be covered with a shield conductor, and a hollow tubular tube that does not have a core wire may be used as another cable. Similarly to the parts, they may be integrated in parallel.

また、前記実施形態に係るケーブルにおいては、カバー20をなす二つのシート40を、露出させた端部の中間樹脂層23同士を加熱により融着させてカバー20としての一体化を図る構成としているが、これに限定されるものではなく、接着剤で二つのシートにおける端部の中間樹脂層23同士を接着一体化してカバーを形成する構成とするなど、融着以外の他の一体化手法を使用することもできる。接着で一体化を図る場合、接着剤は、接着機能を発揮しつつ弾性変形可能な状態を維持するものが望ましい。   In the cable according to the embodiment, the two sheets 40 constituting the cover 20 are configured to be integrated as the cover 20 by fusing the exposed intermediate resin layers 23 to each other by heating. However, the present invention is not limited to this, and other integration methods other than fusion, such as forming a cover by bonding and integrating the intermediate resin layers 23 at the ends of the two sheets with an adhesive, are used. It can also be used. When integrating by bonding, it is desirable that the adhesive maintains an elastically deformable state while exhibiting an adhesive function.

また、前記実施形態に係るケーブルにおいては、カバー20をなす二つのシート40の融着一体化に伴って生じる収縮力により、管状部21に多数の凹凸を形成する構成としているが、この他、管状部に所望の凹凸パターンを圧着転写するなどの方法で、管状部に多数の凹凸を形成するようにしてもかまわない。   Further, in the cable according to the above embodiment, a large number of irregularities are formed in the tubular portion 21 due to the contraction force generated by the fusion integration of the two sheets 40 forming the cover 20, but in addition, A large number of irregularities may be formed on the tubular portion by a method such as pressure-transferring a desired irregularity pattern to the tubular portion.

さらに、突条部22においても、二つのシート40の融着の際の押圧力付加及び除去や、熱移動に伴う膨張、収縮を経て、緩い凹凸が長手方向に連続する波状に形成された状態となるようにしたり、融着と同時に、突条部にあたるシート端部に所望の凹凸形状を圧着転写して、融着後の突条部に管状部長手方向に並ぶ多数の凹凸を付与する構成とすることもできる。この他、突条部22に対し、融着とは別途に所望の凹凸形状を圧着転写して多数の凹凸を形成するようにしてもよい。こうした凹凸により、突条部における他との接触をその凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、ケーブル全体をよりスムーズに動かせると共に、突条部における摩耗の抑制が図れる。   Furthermore, also in the protrusion part 22, the state which the loose unevenness | corrugation was formed in the wave form which followed the longitudinal direction through the pressurization addition and removal at the time of melt | fusion of the two sheets 40, and expansion and contraction accompanying heat transfer. A structure in which a desired concavo-convex shape is pressure-transferred to the end portion of the sheet corresponding to the ridge portion at the same time as fusion, and a large number of concavo-convex portions arranged in the longitudinal direction of the tubular portion are imparted to the ridge portion after fusion It can also be. In addition, a number of irregularities may be formed by crimping and transferring a desired irregularity shape separately from the fusion to the protruding portion 22. Due to these irregularities, only the projections can make contact with the other at the ridges, reducing the contact area and reducing friction, allowing the entire cable to move more smoothly and reducing wear on the ridges. Suppression can be achieved.

この突条部22における凹凸は、管状部21の凹凸より凸部間の間隔が長いものとして、管状部と突条部における各振動モードに差異を生じさせ、ケーブルに生じる振動が特定の振動数に偏って大きくなるのを防いで、不要な振動を抑えられるようにするのが好ましいが、その間隔は等間隔とは限らず、一部又は全部が不等間隔となってもかまわない。   The projections and recesses in the ridges 22 are assumed to have a longer interval between the projections than the projections and depressions in the tubular portion 21, causing differences in the vibration modes in the tubular portion and the ridges, and the vibration generated in the cable has a specific frequency. However, it is preferable to prevent unnecessary vibrations, and the intervals are not limited to equal intervals, and some or all of the intervals may be uneven.

(本発明の第2の実施形態)
前記第1の実施形態に係るケーブルにおいては、カバー20の製造過程で、二つのシート40の幅方向両端部における一方のフッ素樹脂層24をそれぞれ除去し、この除去により露出した中間樹脂層23の端部同士を重ね合わせ、融着一体化して、中空部分が唯一生じた管状部21を形成し、この管状部21を含むカバー20とケーブル部10とをケーブルとして組み合わせる構成としているが、この他、第2の実施形態として、図7、図8に示すように、二つのシート40の幅方向両端部だけでなく他の一又は複数箇所でも一方のフッ素樹脂層24をそれぞれ除去し、この除去により露出した箇所の中間樹脂層23同士を重ね合わせ、融着一体化して、中空部分が複数区画された状態で生じた管状部21を形成し、これら管状部21の各中空部分にケーブル部10を分散配置してケーブル2を得る構成とすることもできる。
(Second embodiment of the present invention)
In the cable according to the first embodiment, in the process of manufacturing the cover 20, one of the fluororesin layers 24 at both ends in the width direction of the two sheets 40 is removed, and the intermediate resin layer 23 exposed by this removal is removed. The ends are overlapped and fused together to form a tubular portion 21 having a hollow portion only, and the cover 20 including the tubular portion 21 and the cable portion 10 are combined as a cable. As a second embodiment, as shown in FIGS. 7 and 8, one fluororesin layer 24 is removed not only at both ends in the width direction of the two sheets 40 but also at one or a plurality of other locations. The intermediate resin layers 23 at the locations exposed by the above are overlapped and fused and integrated to form tubular portions 21 formed in a state where a plurality of hollow portions are partitioned. The cable portion 10 and distributed can also be configured to obtain a cable 2 to the part.

この場合、管状部21形成のためのシート40の中間樹脂層23端部以外の融着の結果として、管状部長手方向に連続する所定幅の接合部27が生じている。
詳細には、接合部27は、管状部21における一の管壁部分21aにおける外側のフッ素樹脂層25と一体化して連続するフッ素樹脂層27aと、管状部21における一の管壁部分21aにおける中間樹脂層23及び他の管壁部分21bにおける中間樹脂層23と一体化した中間樹脂層27bと、管状部21における他の管壁部分における外側のフッ素樹脂層25と一体化して連続するフッ素樹脂層27cとの積層構造を有するものである。
In this case, as a result of fusion other than the end portion of the intermediate resin layer 23 of the sheet 40 for forming the tubular portion 21, a joining portion 27 having a predetermined width continuous in the longitudinal direction of the tubular portion is generated.
Specifically, the joining portion 27 includes a fluororesin layer 27a that is integrated and continuous with the outer fluororesin layer 25 in the one tube wall portion 21a in the tubular portion 21, and an intermediate portion in the one tube wall portion 21a in the tubular portion 21. An intermediate resin layer 27b integrated with the resin layer 23 and the intermediate resin layer 23 in the other tube wall portion 21b, and a continuous fluororesin layer integrated with the outer fluororesin layer 25 in the other tube wall portion of the tubular portion 21. It has a laminated structure with 27c.

こうして、カバー20の管状部横幅方向における一又は複数の所定箇所に積層構造の接合部27を設けて、ケーブル部10の通る管状部21の中空部分が複数に分かれるようにし、ケーブル部10を複数組に分けた状態で管状部21内に配置できることから、ケーブル部10を用途や種類の違いに応じて分けて管状部21に収容したり、絶縁やノイズ防止のために互いに離して配置する必要のある二組のケーブル部を、分かれた中空部分にそれぞれ収容して完全に隔離することができ、ケーブル部10とカバー20を組み合わせたケーブル2全体としての使い勝手を大きく向上させることができる。   In this way, the joint portion 27 having a laminated structure is provided at one or a plurality of predetermined positions in the horizontal width direction of the tubular portion of the cover 20 so that the hollow portion of the tubular portion 21 through which the cable portion 10 passes is divided into a plurality of portions. Since it can be arranged in the tubular part 21 in a state of being divided into groups, the cable part 10 needs to be accommodated in the tubular part 21 according to the use and the type, or separated from each other for insulation and noise prevention. These two cable portions can be housed in separate hollow portions and completely separated, and the usability of the entire cable 2 combining the cable portion 10 and the cover 20 can be greatly improved.

(本発明の第3の実施形態)
前記第1及び第2の各実施形態に係るケーブルにおいては、完成状態となったカバー20の中空部分にケーブル部10を通して、一体の帯状ケーブルを形成する構成としているが、これに限られるものではなく、第3の実施形態として、図9に示すように、カバー20の製造過程で、二つのシート40からカバーを形成する際に、ケーブル部10がシート間に配置されるようにして、二つのシート40を融着一体化して管状部21を形成すると、ケーブル部10が既にカバー20内に配置された状態となって、ケーブル部10とカバー20との組合せからなるケーブル3がカバー20の完成と同時に得られる構成とすることもできる。
(Third embodiment of the present invention)
In the cable according to each of the first and second embodiments, the integrated belt-like cable is formed through the cable portion 10 through the hollow portion of the cover 20 that has been completed, but the present invention is not limited thereto. Instead, as shown in FIG. 9, in the third embodiment, when the cover is formed from the two sheets 40 in the manufacturing process of the cover 20, the cable portion 10 is disposed between the sheets. When the two sheets 40 are fused and integrated to form the tubular portion 21, the cable portion 10 is already disposed in the cover 20, and the cable 3 formed by the combination of the cable portion 10 and the cover 20 becomes the cover 20. It can also be configured to be obtained simultaneously with completion.

詳細には、二つの帯状シート40を、シートの幅方向両端部等所定範囲における一方のフッ素樹脂層24をそれぞれ除去した状態で、この除去により中間樹脂層23が露出した部分同士が向かい合うように重ね合わせると共に、ケーブル部10を、このケーブル部とシート40の長手方向を一致させて、二つのシート40の除去されず残った一方のフッ素樹脂層24の間に介在させる。そして、二つのシート40の重なり合う中間樹脂層23同士を融着一体化して、ケーブル部10を取り囲む管状部21を形成し、カバー20と共にケーブル3としての完成状態を得ることとなる。   Specifically, in the state where one of the two fluororesin layers 24 in a predetermined range such as both ends in the width direction of the sheet is removed from each of the two belt-like sheets 40, the portions where the intermediate resin layer 23 is exposed by this removal face each other. At the same time, the cable part 10 is interposed between the one fluororesin layer 24 that is left unremoved of the two sheets 40 so that the cable part and the longitudinal direction of the sheet 40 are aligned. Then, the overlapping intermediate resin layers 23 of the two sheets 40 are fused and integrated to form the tubular portion 21 surrounding the cable portion 10, and a completed state as the cable 3 is obtained together with the cover 20.

この場合も、前記各実施形態同様、カバー20の外面だけでなくケーブル部10と面するカバー内面にフッ素樹脂層24を配置でき、ケーブル部10とカバー20の管状部内面との接触、摺動が生じても、摩擦力が大きくならず、抵抗を抑えてケーブル部10とカバー20のそれぞれの動きを滑らかなものにできると共に、接触部位の摩耗による粉塵の発生を確実に抑えられる。また、ケーブル部10を収めたカバー外面と、他の物体やカバーの他部位との接触が起こる場合も、カバー20における接触をその凸部のみで生じさせられ、接触面積を少なくして摩擦を減らすことができ、ケーブル3全体をスムーズに動かせると共に、摩耗の大幅な抑制が図れる。   Also in this case, the fluororesin layer 24 can be disposed not only on the outer surface of the cover 20 but also on the inner surface of the cover facing the cable portion 10, as in the above embodiments, and the contact and sliding between the cable portion 10 and the inner surface of the tubular portion of the cover 20. Even if this occurs, the frictional force does not increase, the resistance can be suppressed and the movement of the cable portion 10 and the cover 20 can be made smooth, and the generation of dust due to wear of the contact portion can be reliably suppressed. In addition, even when contact between the outer surface of the cover containing the cable portion 10 and another object or other part of the cover occurs, contact with the cover 20 can be caused only by the convex portion, and friction can be reduced by reducing the contact area. Thus, the entire cable 3 can be moved smoothly and wear can be greatly suppressed.

1、2、3 ケーブル
10 ケーブル部
11a 心線
11b シース
20 カバー
21 管状部
21a 一の管壁部分
21b 他の管壁部分
21c、21d 凸部
22 突条部
22a、22c フッ素樹脂層
22b 中間樹脂層
22d 凸部
23 中間樹脂層
24、25 フッ素樹脂層
26 中空部分
27 接合部
27a、27c フッ素樹脂層
27b 中間樹脂層
40 シート
1, 2, 3 Cable 10 Cable portion 11a Core wire 11b Sheath 20 Cover 21 Tubular portion 21a One tube wall portion 21b Other tube wall portion 21c, 21d Convex portion 22 Projection portion 22a, 22c Fluororesin layer 22b Intermediate resin layer 22d Convex portion 23 Intermediate resin layer 24, 25 Fluororesin layer 26 Hollow portion 27 Joint portion 27a, 27c Fluororesin layer 27b Intermediate resin layer 40 Sheet

Claims (9)

中間樹脂層の内外両側にフッ素樹脂層をそれぞれ一体に配置した積層管壁構造の管状体とされて、内部に中空部分を設けられてなる管状部と、
当該管状部外面から突出する状態として管状部と一体に配設される、管状部長手方向に連続する突条部とを備え、
前記管状部が、積層構造の一の管壁部分と、当該一の管壁部分の中間樹脂層及び二つのフッ素樹脂層とはそれぞれ連続しない他の中間樹脂層及び二つのフッ素樹脂層による積層構造である他の管壁部分とを有し、
前記突条部は、管状部における一の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層と、管状部における一の管壁部分における中間樹脂層及び他の管壁部分における中間樹脂層と一体化した中間樹脂層と、管状部における他の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層との積層構造として形成されたものであり、
前記管状部の、一の管壁部分と他の管壁部分の少なくとも一方における、少なくとも外面に、略同じ大きさの多数の凹凸が、管状部長手方向に並べて形成されることを
特徴とするケーブル用カバー。
A tubular body having a laminated tube wall structure in which fluororesin layers are integrally arranged on both the inner and outer sides of the intermediate resin layer, and a tubular portion provided with a hollow portion inside;
A protruding portion that is disposed integrally with the tubular portion as a state protruding from the outer surface of the tubular portion, and that is continuous in the longitudinal direction of the tubular portion;
The tubular portion is a laminated structure of one tube wall portion of a laminated structure, and another intermediate resin layer and two fluorine resin layers that are not continuous with the intermediate resin layer and the two fluorine resin layers of the one tube wall portion, respectively. And having other tube wall portions that are
The protrusions are a fluororesin layer that is integrated and continuous with an outer fluororesin layer in one tube wall portion in the tubular portion, an intermediate resin layer in the one tube wall portion in the tubular portion, and another tube wall portion. It is formed as a laminated structure of an intermediate resin layer integrated with the intermediate resin layer, and a continuous fluororesin layer integrated with the outer fluororesin layer in the other tube wall portion of the tubular portion,
A cable characterized in that a plurality of irregularities having substantially the same size are formed side by side in the longitudinal direction of the tubular portion on at least the outer surface of at least one of the one tubular wall portion and the other tubular wall portion of the tubular portion. Cover.
前記請求項1に記載のケーブル用カバーにおいて、
前記管状部の各管壁部分における外側のフッ素樹脂層と中間樹脂層とが、互いに異なる色をそれぞれ付けられた状態として形成されることを
特徴とするケーブル用カバー。
The cable cover according to claim 1,
The cable cover, wherein the outer fluororesin layer and the intermediate resin layer in each tube wall portion of the tubular portion are formed in different states from each other.
前記請求項1又は2に記載のケーブル用カバーにおいて、
前記突条部に、管状部の凹凸より管状部長手方向に長い多数の凹凸を、管状部長手方向に並べて形成されることを
特徴とするケーブル用カバー。
In the cable cover according to claim 1 or 2,
A cable cover, wherein the protrusion is formed with a plurality of protrusions and recesses that are longer in the longitudinal direction of the tubular part than the protrusions and recesses of the tubular part.
前記請求項1ないし3のいずれかに記載のケーブル用カバーにおいて、
前記管状部の横幅方向における一又は複数の所定箇所に、管状部における一の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層と、管状部における一の管壁部分における中間樹脂層及び他の管壁部分における中間樹脂層と一体化した中間樹脂層と、管状部における他の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層との積層構造として形成される接合部が、管状部長手方向に連続して設けられ、
管状部の中空部分が、接合部位置で複数に区画されることを
特徴とするケーブル用カバー。
In the cable cover according to any one of claims 1 to 3,
One or a plurality of predetermined locations in the lateral width direction of the tubular portion, a fluororesin layer continuous with an outer fluororesin layer in one tube wall portion in the tubular portion, and an intermediate in one tube wall portion in the tubular portion Formed as a laminated structure of an intermediate resin layer integrated with the resin layer and the intermediate resin layer in the other tube wall part, and a continuous fluorine resin layer integrated with the outer fluororesin layer in the other tube wall part of the tubular part The joined portion is provided continuously in the longitudinal direction of the tubular portion,
A cable cover, wherein the hollow portion of the tubular portion is divided into a plurality of portions at the joint position.
心線を一又は複数本有して可撓性のあるケーブル部と、内側に前記ケーブル部を一又は複数組収容する中空部分のある略管状のカバーとを備えるケーブルにおいて、
前記カバーが、
中間樹脂層の内外両側にフッ素樹脂層をそれぞれ配置した積層管壁構造の管状体とされて、内部にケーブル部を収容可能な中空部分を設けられてなる管状部と、
当該管状部外面から突出する状態として管状部と一体に配設される、管状部長手方向に連続する突条部とを備え、
前記管状部が、積層構造の一の管壁部分と、当該一の管壁部分の中間樹脂層及び二つのフッ素樹脂層とはそれぞれ連続しない他の中間樹脂層及び二つのフッ素樹脂層による積層構造である他の管壁部分とを有し、
前記突条部は、管状部における一の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層と、管状部における一の管壁部分における中間樹脂層及び他の管壁部分における中間樹脂層と一体化した中間樹脂層と、管状部における他の管壁部分における外側のフッ素樹脂層と一体化して連続するフッ素樹脂層との積層構造として形成されたものであり、
前記管状部の、一の管壁部分と他の管壁部分の少なくとも一方における、少なくとも外面に、略同じ大きさの多数の凹凸が、管状部長手方向に並べて形成されることを
特徴とするケーブル。
In a cable comprising one or more core wires and a flexible cable portion, and a substantially tubular cover having a hollow portion that houses one or more sets of the cable portions inside,
The cover is
A tubular body having a laminated tube wall structure in which fluororesin layers are disposed on both the inner and outer sides of the intermediate resin layer, and a tubular portion provided with a hollow portion capable of accommodating a cable portion therein;
A protruding portion that is disposed integrally with the tubular portion as a state protruding from the outer surface of the tubular portion, and that is continuous in the longitudinal direction of the tubular portion;
The tubular portion is a laminated structure of one tube wall portion of a laminated structure, and another intermediate resin layer and two fluorine resin layers that are not continuous with the intermediate resin layer and the two fluorine resin layers of the one tube wall portion, respectively. And having other tube wall portions that are
The protrusions are a fluororesin layer that is integrated and continuous with an outer fluororesin layer in one tube wall portion in the tubular portion, an intermediate resin layer in the one tube wall portion in the tubular portion, and another tube wall portion. It is formed as a laminated structure of an intermediate resin layer integrated with the intermediate resin layer, and a continuous fluororesin layer integrated with the outer fluororesin layer in the other tube wall portion of the tubular portion,
A cable characterized in that a plurality of irregularities having substantially the same size are formed side by side in the longitudinal direction of the tubular portion on at least the outer surface of at least one of the one tubular wall portion and the other tubular wall portion of the tubular portion. .
熱可塑性樹脂からなる中間樹脂層の表裏両側にフッ素樹脂層をそれぞれ配置した積層構造の二つの帯状シートを、シートの幅方向両端部所定範囲における一方のフッ素樹脂層をそれぞれ除去した状態で、二つのシートを除去により中間樹脂層の露出した端部同士が向かい合うように重ね合わせ、
二つのシートの重なり合う中間樹脂層端部同士を一体化して、内部に連続する中空部分のある管状部を形成し、
当該管状部の少なくとも外面に、略同じ大きさの多数の凹凸を管状部長手方向に並べて形成することを
特徴とするケーブル用カバーの製造方法。
Two belt-like sheets having a laminated structure in which fluororesin layers are respectively arranged on both front and back sides of the intermediate resin layer made of thermoplastic resin are removed in a state where one fluororesin layer in a predetermined range at both end portions in the width direction of the sheet is removed. By removing two sheets, the exposed ends of the intermediate resin layer face each other,
The intermediate resin layer ends that overlap the two sheets are integrated to form a tubular portion with a hollow portion continuous inside,
A method for manufacturing a cable cover, comprising: forming at least an outer surface of the tubular part a plurality of irregularities having substantially the same size in the longitudinal direction of the tubular part.
前記請求項6に記載のケーブル用カバーの製造方法において、
前記二つのシートの中間樹脂層端部同士の一体化で、当該一体化部分が管状部外面から突出し、且つ管状部長手方向に連続する突条部をなし、
当該突条部に、管状部の凹凸より管状部長手方向に長い多数の凹凸を、長手方向に並べて形成することを
特徴とするケーブル用カバーの製造方法。
In the manufacturing method of the cable cover according to claim 6,
In the integration of the intermediate resin layer ends of the two sheets, the integrated part protrudes from the outer surface of the tubular part, and forms a ridge that continues in the longitudinal direction of the tubular part,
A method for manufacturing a cable cover, wherein a plurality of projections and depressions longer in the longitudinal direction of the tubular portion than the projections and depressions of the tubular portion are formed side by side in the longitudinal direction.
前記請求項6又は7に記載のケーブル用カバーの製造方法において、
前記二つのシートを、シートの幅方向における両端部以外の一又は複数の所定箇所でも一方のフッ素樹脂層をそれぞれ除去した状態とし、
二つのシートの重なり合う中間樹脂層端部同士を一体化するのと合わせて、前記所定箇所で露出して重なり合う中間樹脂層同士を一体化し、前記中空部分を複数に区画された状態で生じさせることを
特徴とするケーブル用カバーの製造方法。
In the manufacturing method of the cable cover according to claim 6 or 7,
The two sheets are in a state in which one fluororesin layer is removed at one or a plurality of predetermined locations other than both ends in the width direction of the sheet,
In addition to integrating the overlapping intermediate resin layer ends of the two sheets, integrating the overlapping intermediate resin layers exposed at the predetermined location, and generating the hollow portion in a state of being divided into a plurality of sections A method for manufacturing a cable cover.
熱可塑性樹脂からなる中間樹脂層の表裏両側にフッ素樹脂層をそれぞれ配置した積層構造の二つの帯状シートを、シートの幅方向両端部所定範囲における一方のフッ素樹脂層をそれぞれ除去した状態で、二つのシートの前記除去により中間樹脂層が露出した部分同士が向かい合うように重ね合わせると共に、心線を一又は複数本有して可撓性のあるケーブル部を、ケーブル部とシートの長手方向を一致させて、二つのシートの除去されず残った一方のフッ素樹脂層の間に介在するようにし、
二つのシートの重なり合う中間樹脂層端部同士を一体化して、前記ケーブル部を取り囲む管状部を形成し、
当該管状部の少なくとも外面に、略同じ大きさの多数の凹凸を管状部長手方向に並べて形成することを
特徴とするケーブルの製造方法。
Two belt-like sheets having a laminated structure in which fluororesin layers are respectively arranged on both front and back sides of the intermediate resin layer made of thermoplastic resin are removed in a state where one fluororesin layer in a predetermined range at both end portions in the width direction of the sheet is removed. The two sheets are superposed so that the exposed portions of the intermediate resin layer face each other, and one or more core wires are flexible, and the flexible cable portion is aligned with the longitudinal direction of the cable portion and the sheet. Let the two sheets be interposed between the remaining one fluororesin layer without being removed,
The intermediate resin layer ends overlapping two sheets are integrated to form a tubular portion surrounding the cable portion,
A method for manufacturing a cable, comprising: forming at least an outer surface of the tubular portion a plurality of concaves and convexes having substantially the same size in the longitudinal direction of the tubular portion.
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Publication number Priority date Publication date Assignee Title
JPS57125134U (en) * 1981-01-28 1982-08-04
JP2005184996A (en) * 2003-12-19 2005-07-07 Yazaki Corp Power supply device for opening/closing body
JP2006286304A (en) * 2005-03-31 2006-10-19 J-Power Systems Corp Tree-resistant cable
JP2009093934A (en) * 2007-10-10 2009-04-30 Yazaki Corp Shielded wire, and manufacturing method for shielded wire
JP2012149752A (en) * 2011-01-21 2012-08-09 Tsubakimoto Chain Co Articulated cable protection and guide device
JP2013522856A (en) * 2010-08-31 2013-06-13 スリーエム イノベイティブ プロパティズ カンパニー Shielded electrical cable
JP2019519183A (en) * 2016-05-26 2019-07-04 エルエス ケーブル アンド システム リミテッド. Multiple sleeve for cable protection device and cable protection device including the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57125134U (en) * 1981-01-28 1982-08-04
JP2005184996A (en) * 2003-12-19 2005-07-07 Yazaki Corp Power supply device for opening/closing body
JP2006286304A (en) * 2005-03-31 2006-10-19 J-Power Systems Corp Tree-resistant cable
JP2009093934A (en) * 2007-10-10 2009-04-30 Yazaki Corp Shielded wire, and manufacturing method for shielded wire
JP2013522856A (en) * 2010-08-31 2013-06-13 スリーエム イノベイティブ プロパティズ カンパニー Shielded electrical cable
JP2012149752A (en) * 2011-01-21 2012-08-09 Tsubakimoto Chain Co Articulated cable protection and guide device
JP2019519183A (en) * 2016-05-26 2019-07-04 エルエス ケーブル アンド システム リミテッド. Multiple sleeve for cable protection device and cable protection device including the same

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