JP2010249172A - Antistatic resin hose - Google Patents

Antistatic resin hose Download PDF

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JP2010249172A
JP2010249172A JP2009096801A JP2009096801A JP2010249172A JP 2010249172 A JP2010249172 A JP 2010249172A JP 2009096801 A JP2009096801 A JP 2009096801A JP 2009096801 A JP2009096801 A JP 2009096801A JP 2010249172 A JP2010249172 A JP 2010249172A
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hose
resin
conductive
wire
conductive resin
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JP5368861B2 (en
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Takeshi Saito
武 斉藤
Sadaaki Nakano
貞明 中野
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Hakko Corp
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Hakko Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an antistatic resin hose with improved reliability for allowing easy grounding work, ensuring an antistatic function as an earth line even if a crack occurs in a long conductive resin layer arranged in an outer layer hose to exhibit good safe performance, improving disadvantage of a long hose such as a conventional antistatic resin hose, wherein the electric resistance value of a long conductive resin layer is increased and the antistatic function is greatly deteriorated, to maintain good antistatic function, and further improving industrial usefulness. <P>SOLUTION: A spiral conductive wire 4 wound around the outer circumferential face of an inner layer hose 1 at a predetermined pitch over the whole length is arranged between the inner layer hose 1 and the outer layer hose 2, and an inside face 5a of at least one conductive resin layer 5 integrally molded as part of the outer layer hose 2 and extending in the length direction is press-bonded to respective winding parts 4a crossing at predetermined intervals to the conductive resin layer 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、帯電防止樹脂ホースに関する。   The present invention relates to an antistatic resin hose.

従来、様々な樹脂ホースが使用されているが、一般に、樹脂は体積抵抗値が高いので、流体との摩擦により静電気が発生し、その静電気が樹脂ホースに帯電し、人体にショックを与えたり、ホースに埃が付着し、汚染するなどの問題が生ずる。
かかる不都合を解消するため、例えば、実開平5-31870号公報には、内層ホース1と外層ホース2とを低硬度のウレタン樹脂で形成し、該内層ホース1と該外層ホース2との間に繊維製でネット状の補強層3を介在させ、更に、アース線4をその長さ方向にスパイラル状に埋設することにより構成した帯電防止樹脂ホースを開示している。
また、登録実用新案第3126448号公報には、図1〜図5に示すように、チューブ本体の外面に長さ方向に沿って伸びる少なくとも1本の導電樹脂を有する帯電防止樹脂チューブに係る発明が開示されている。 Conventionally, various resin hoses have been used, but in general, since resin has a high volume resistance, static electricity is generated due to friction with the fluid, and the static electricity is charged to the resin hose, shocking the human body, Problems such as dust adhering to the hose and contamination occur.
In order to eliminate such inconvenience, for example, in Japanese Utility Model Laid-Open No. 5-31870, the inner layer hose 1 and the outer layer hose 2 are formed of a low-hardness urethane resin, and the inner layer hose 1 and the outer layer hose 2 are formed between them. An antistatic resin hose is disclosed which is constructed by interposing a reinforcing layer 3 made of fiber and having a net shape, and further embedding a ground wire 4 in a spiral shape in its length direction.
In addition, as shown in FIGS. 1 to 5, the registered utility model No. 3126448 discloses an invention relating to an antistatic resin tube having at least one conductive resin extending along the length direction on the outer surface of the tube body. It is disclosed.

実開平5-31870号公報Japanese Utility Model Publication No. 5-31870 登録実用新案第3126448号公報Registered Utility Model No. 3126448

上記特許文献1の発明に係る帯電防止樹脂ホースは、アースを接地するに当たり、ホースの一端の該外層の一部を剥がし、アース線を引き出す煩わしい作業を伴い、又、その作業に熟練を要し使い勝手を低下させる不都合をもたらす。
また、特許文献2に係る帯電防止樹脂チューブは、保存時や運搬時などの過程で受ける振動や衝撃により、或いは使用時に弯曲させるなどの取り扱いによりその導電樹脂に亀裂、破損や剥離などを生じ、導電機能が果たせなくなり、帯電防止機能の信頼性に欠けるばかりでなく、良好な状態においても、該樹脂チューブが長くなるに伴い該導電樹脂の電気抵抗値が急上昇し、帯電防止機能が著しく低下するなどの不都合をもたらす。
本発明は、かかる上記従来の技術の課題を解消し、導電樹脂に亀裂などを生じても、或いは、ホースの長さを通常使用される長さにおいて良好な帯電防止機能を確保できる信頼性の向上した帯電防止樹脂ホースを提供することを目的とする。 The antistatic resin hose according to the invention of the above-mentioned Patent Document 1 involves a troublesome work of peeling off a part of the outer layer at one end of the hose and drawing out the ground wire when grounding the ground, and the work requires skill. It causes inconvenience that reduces usability.
In addition, the antistatic resin tube according to Patent Document 2 causes cracking, breakage, peeling, etc. in the conductive resin due to vibration or impact received during the process of storage or transportation, or due to handling such as bending during use, Not only does the conductive function fail, the antistatic function is not reliable, but also in a good state, as the resin tube becomes longer, the electrical resistance value of the conductive resin rapidly increases and the antistatic function is significantly reduced. This causes inconvenience.
The present invention eliminates the above-mentioned problems of the prior art, and even if a crack or the like occurs in the conductive resin, or the hose is normally used at a length that is normally used, a reliable antistatic function can be secured. An object is to provide an improved antistatic resin hose.

本発明は、請求項1に記載の通り、内層ホースと外層ホースとの間に、該内層ホースの外周面に全長に亘り所定のピッチを存して捲き付けて成る螺旋状の導電線を介在させ、且つ該外層ホースの一部として一体成形された長さ方向に延びる少なくとも一条の導電樹脂層の内面を該導電樹脂層に対し所定間隔を存し横断する各捲線部に圧着せしめたことを特徴とする帯電防止樹脂ホースに存する。
更に本発明は、上記の発明に係るホースにおいて、該内層ホースを透明又は半透明の合成樹脂で構成し、該外層ホースの他の部分を透明な合成樹脂で構成したことを特徴とする。
更に本発明は、上記の発明に係るホースにおいて、該螺旋状の導電線は、該内層ホースの外周面に全長に亘り嵌装した繊維糸から成る網状補強筒の一部として長さ方向に螺旋状に編み込んだ金属線であることを特徴とする。
更に本発明は、上記の発明に係るホースにおいて、該螺旋状の導電線は、該内層ホースの外周面に全長に亘り嵌装した螺旋状の金属線又は導電樹脂線であることを特徴とする。
更に本発明は、上記の発明に係るホースにおいて、該螺旋状の導電線は、該内層ホースの外周面に全長に亘り嵌装した前記の金属線が螺旋状に編み込まれた網状補強筒と該網状補強筒の外周面に全長に亘り嵌装した螺旋状の金属線又は導電樹脂線との組み合わせであることを特徴とする。 According to the present invention, as described in claim 1, between the inner layer hose and the outer layer hose, there is interposed a spiral conductive wire formed by being attached to the outer peripheral surface of the inner layer hose with a predetermined pitch over the entire length. And the inner surface of at least one conductive resin layer extending in the length direction integrally formed as a part of the outer layer hose is press-bonded to each ridge portion traversing the conductive resin layer at a predetermined interval. It exists in the characteristic antistatic resin hose.
Furthermore, the present invention is characterized in that in the hose according to the present invention, the inner layer hose is made of a transparent or translucent synthetic resin, and the other part of the outer layer hose is made of a transparent synthetic resin.
Furthermore, the present invention is the hose according to the above-mentioned invention, wherein the spiral conductive wire spirals in the longitudinal direction as a part of a mesh-like reinforcing cylinder made of fiber yarn fitted over the entire outer peripheral surface of the inner layer hose. It is a metal wire knitted into a shape.
Furthermore, the present invention is the hose according to the present invention, wherein the spiral conductive wire is a spiral metal wire or conductive resin wire fitted over the entire outer peripheral surface of the inner layer hose. .
Furthermore, the present invention provides the hose according to the above-mentioned invention, wherein the spiral conductive wire includes a net-like reinforcing cylinder in which the metal wire fitted over the entire outer peripheral surface of the inner layer hose is spirally knitted, and the It is a combination with a helical metal wire or conductive resin wire fitted over the entire length of the outer peripheral surface of the mesh-like reinforcing cylinder.

請求項1に係る発明によれば、該内層ホースと該外層ホースとの間に介在させた長さ方向に延びる螺旋状の導電線の各捲線部に、該外層ホースの一部を長さ方向に延びるように形成した少なくとも一条の導電性樹脂層の内面を圧着せしめたホースに構成したので、該導電樹脂層をアースとして用い接地作業を迅速且つ容易に行うことができるばかりでなく、該外層ホースの長さ方向に延びる該導電樹脂層に亀裂が入った場合でも、常に該螺旋状の導電線の多数の捲線部において、電気的接続が維持されているので、良好な帯電防止機能を常に確保できる信頼性の向上したホースを提供でき、更には、該ホースの長さを長くしても、該導電樹脂層の電気抵抗値は殆ど上昇せず、良好な帯電防止機能を維持し、従来の帯電防止樹脂チューブの改善をもたらす。
請求項2に係る発明によれば、上記の効果に加え、該ホース内を流れる流体の状況を外部から透視観察できる。
請求項3に係る発明によれば、該内層ホースの外周面に嵌層した網状補強筒に金属線が螺旋状に編み込まれているので、上記の効果に加え、帯電防止樹脂ホースに耐圧性を付与することができる。
請求項4に係る発明によれば、上記の効果に加え、該内層ホースの外周面に所望の太さの金属線又は導電樹脂線から成る導電線を用い、所望のピッチで螺旋状に捲き付けることができるので、安定良好で且つ耐圧性の向上した樹脂ホースが得られるばかりでなく、更に電気抵抗を低減することができると共に、これに電気的に各捲線部で接続する少なくとも一条の導電樹脂層の帯電防止機能を高めることができる。
請求項5に係る発明によれば、上記の効果に加え、該内層ホースと該外層ホースとの間に介在させる螺旋状の導電線を、金属線を螺旋状に編み込んだ網状補強筒と、その外周面に長さ方向に所望のピッチを存して螺旋状に捲き付けた螺旋状の金属線又は導電樹脂線との組み合わせとしたので、帯電防止樹脂ホースとして更に耐圧強度の向上と導電樹脂層の帯電防止機能の更なる向上をもたらす。 According to the invention according to claim 1, a part of the outer layer hose is disposed in the longitudinal direction on each winding portion of the helical conductive wire extending in the length direction interposed between the inner layer hose and the outer layer hose. Since the hose is formed by crimping the inner surface of at least one conductive resin layer formed so as to extend to the outside, not only can the grounding work be performed quickly and easily using the conductive resin layer as a ground, but also the outer layer Even when the conductive resin layer extending in the length direction of the hose is cracked, the electrical connection is always maintained in a number of winding portions of the spiral conductive wire. It is possible to provide a hose with improved reliability that can be secured, and even if the length of the hose is increased, the electrical resistance value of the conductive resin layer hardly increases and maintains a good antistatic function. Improved antistatic resin tube Bring.
According to the invention of claim 2, in addition to the above effect, the state of the fluid flowing through the hose can be seen through from the outside.
According to the invention of claim 3, since the metal wire is spirally woven into the mesh-like reinforcing cylinder fitted on the outer peripheral surface of the inner layer hose, in addition to the above effects, the antistatic resin hose has a pressure resistance. Can be granted.
According to the invention of claim 4, in addition to the above effect, a conductive wire made of a metal wire or a conductive resin wire having a desired thickness is used on the outer peripheral surface of the inner layer hose, and is spirally wound at a desired pitch. Therefore, not only can a resin hose with good stability and improved pressure resistance be obtained, but also the electrical resistance can be further reduced, and at least one conductive resin electrically connected to this at each shore portion. The antistatic function of the layer can be enhanced.
According to the invention according to claim 5, in addition to the above-described effect, a helical conductive wire interposed between the inner layer hose and the outer layer hose, a net-like reinforcing cylinder in which a metal wire is spirally woven, and the Since it is a combination with a spiral metal wire or conductive resin wire that is spirally wound with a desired pitch in the length direction on the outer peripheral surface, further improvement of pressure resistance strength and conductive resin layer as an antistatic resin hose This further improves the antistatic function.

本発明の帯電防止樹脂ホースの実施形態の1例を示し、図1(a)はその一部を截除した斜視図、図1(b)はその横断面図。FIG. 1 shows an example of an embodiment of an antistatic resin hose of the present invention, FIG. 1 (a) is a perspective view with a part thereof removed, and FIG. 1 (b) is a cross-sectional view thereof. 本発明の帯電防止樹脂ホースの他の実施形態例を示し、図2(a)はその一部を截除した斜視図、図2(b)はその横断面図。FIG. 2 shows another embodiment of the antistatic resin hose of the present invention, FIG. 2 (a) is a perspective view with a part thereof removed, and FIG. 2 (b) is a cross-sectional view thereof. 本発明の帯電防止樹脂ホースの更に他の実施形態例を示し、図3(a)はその一部を截除した斜視図、図3(b)はその横断面図。3 shows still another embodiment of the antistatic resin hose of the present invention, FIG. 3 (a) is a perspective view with a part thereof removed, and FIG. 3 (b) is a cross-sectional view thereof.

本発明の実施形態例を添付図面に基づき以下詳述する。
図1は、本発明の実施形態の1例の帯電防止樹脂ホースAを示し、図1(a)はその一部を截除した斜視図、図1(b)はその横断面図を示す。
同図において、該ホースAは、内層ホース1と外層ホース2との間に、繊維糸3aを網状に編んだ補強筒3として、その一部をその全長に亘り導電線4として金属線を所定の間隔(ピッチ)を存し螺旋状に編み込んだものを該内層ホース１の外周面に嵌装した状態で介在させて周知の共押出成形により成形して成る耐圧性のホースとしたものである。該繊維糸3a及び該金属線4の太さは、共に同じものでも異なるものでも良く、所望に選択して網状補強筒3に構成する。
内層ホース1及び外層ホース2を成形する合成樹脂材料は、例えば、ポリウレタン樹脂、ポリアミド樹脂、ポリテトラフルオロエチレン樹脂、熱溶融性フッ素樹脂、軟質塩化ビニル樹脂、ポリプロピレン樹脂、ポリエチレン樹脂などの合成樹脂など又はこれらのエラストマーなどから任意選択して使用される。内層ホース1及び外層ホース2として、同じ材質の合成樹脂でも、互いに異なる樹脂でも良いが、いずれの場合でも相互の接着性に優れたものが好ましい。また、ホースA内を通る流体の状況を透視観察し得るように、内外層ホース1,2共に不透明な合成樹脂材料或いは透明な合成樹脂材料によりフレキシブルなホースAに構成する。図示の帯電防止樹脂ホースAは、内外層ホース1,2ともポリアミド樹脂、フッ素樹脂などの所望の透明な樹脂材料で成形して成る透明で且つ該内外層ホース1,2の相互が強固に接着した而もフレキシブルなホースに構成したものである。 Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 shows an example of an antistatic resin hose A according to an embodiment of the present invention, FIG. 1 (a) is a perspective view of a part thereof removed, and FIG. 1 (b) is a cross-sectional view thereof.
In this figure, the hose A is a reinforcing tube 3 in which fiber yarns 3a are knitted in a net shape between an inner layer hose 1 and an outer layer hose 2, and a metal wire is used as a conductive wire 4 over its entire length. This is a pressure-resistant hose formed by a well-known coextrusion molding with a spiral knitted space (pitch) intervened in a state of being fitted to the outer peripheral surface of the inner layer hose 1. . The thickness of the fiber yarn 3a and the metal wire 4 may be the same or different, and are selected as desired to constitute the mesh-like reinforcing cylinder 3.
Synthetic resin materials for forming the inner layer hose 1 and the outer layer hose 2 include, for example, synthetic resins such as polyurethane resin, polyamide resin, polytetrafluoroethylene resin, heat-meltable fluororesin, soft vinyl chloride resin, polypropylene resin, polyethylene resin, etc. Alternatively, these elastomers are optionally selected and used. The inner layer hose 1 and the outer layer hose 2 may be synthetic resins of the same material or different resins, but in any case, those having excellent mutual adhesiveness are preferable. Further, the inner and outer layer hoses 1 and 2 are both made of a flexible synthetic resin material or a transparent synthetic resin material so that the state of the fluid passing through the hose A can be seen through. The antistatic resin hose A shown in the figure is transparent with both the inner and outer layer hoses 1 and 2 molded from a desired transparent resin material such as polyamide resin and fluorine resin, and the inner and outer layer hoses 1 and 2 are firmly bonded to each other. It is a flexible hose.

本発明は、上記の該ホースAの該外層ホース2は2つの部分2a,2bから構成され、その一部分2aを、その他の透明なホース部分2bと同じ厚さで該ホースの内外面に露出し且つホースの全長に亘り一直線に延びる少なくとも一条の導電樹脂層5に成形すると共に、その内面5aを、該導電樹脂層5を一定のピッチで横断する該螺旋状の金属線4の夫々の捲線部4a,4a,…にその押出成形時の圧力で圧着せしめることにより、帯電防止樹脂ホースAに構成したことを特徴とする。該捲線4a,4a間のピッチは、1mm〜200mmの範囲から選択する。   In the present invention, the outer layer hose 2 of the hose A is composed of two parts 2a and 2b, and the part 2a is exposed to the inner and outer surfaces of the hose with the same thickness as the other transparent hose parts 2b. Each of the spiral metal wires 4 is formed into at least one conductive resin layer 5 extending in a straight line over the entire length of the hose, and the inner surface 5a of the helix metal wire 4 traverses the conductive resin layer 5 at a constant pitch. The antistatic resin hose A is configured by being pressed onto 4a, 4a,... With the pressure at the time of extrusion molding. The pitch between the windings 4a, 4a is selected from the range of 1 mm to 200 mm.

かくして、連続的に製造される本発明の帯電防止樹脂ホースAは所望の長さに切断して製品とする。該ホースAの該導電樹脂層5の外面に露出する端部をそのままアースとして使用し得るので、接地作業を迅速且つ容易になし得るばかりでなく、該導電樹脂層5の中間部に亀裂などを生じても、直線状の該導電樹脂層5はその内面5aは、その全長に亘り前記したように、該導電樹脂層5に対し横断する夫々の捲線4a,4a,…に圧着しているので、該亀裂に全く影響されず、常にアースとしての帯電防止機能を確保することができるので、上記従来の帯電防止樹脂チューブの課題が解消され、安定良好な信頼性の向上した帯電防止樹脂ホースAが提供できる。   Thus, the antistatic resin hose A of the present invention produced continuously is cut into a desired length to obtain a product. Since the end exposed to the outer surface of the conductive resin layer 5 of the hose A can be used as a ground as it is, not only can the grounding work be performed quickly and easily, but also a crack or the like is formed in the intermediate part of the conductive resin layer 5. Even if it occurs, the inner surface 5a of the linear conductive resin layer 5 is crimped to the respective windings 4a, 4a,... Traversing the conductive resin layer 5 over the entire length thereof as described above. The antistatic resin hose A is stable and has improved reliability because the problem of the conventional antistatic resin tube is solved because the antistatic function as a ground can always be secured without being affected by the cracks. Can be provided.

尚、該導電樹脂層5は、ポリアミド樹脂、ポリエチレン樹脂、ポリウレタン樹脂、熱溶融性フッ素樹脂、軟質塩化ビニル樹脂、ポリプロピレン樹脂、ポリスチレン樹脂などの合成樹脂など又はこれらのエラストマーなど、所望の樹脂をベースとし、これにカーボンブラックなどのカーボン、銀、銅などの良導電性微粒子を適当量配合混練したもの、或いは樹脂自体が導電性をもつ合成樹脂で構成し、その体積抵抗率は102〜108Ω・cmを有するものとする。
また、その幅は、0.5mmの細線状から20mmの細帯状のものが経済的であり一般に好ましい。
図示の例では、該導電樹脂層5は一条設けたが、外層ホース2の円周方向に複数条、好ましくは、一定間隔で配設するようにしてもよい。 The conductive resin layer 5 is based on a desired resin such as a polyamide resin, a polyethylene resin, a polyurethane resin, a heat-meltable fluororesin, a soft vinyl chloride resin, a polypropylene resin, a polystyrene resin, or an elastomer thereof. This is made by mixing and kneading a suitable amount of fine conductive fine particles such as carbon black, silver, copper, etc., or a resin synthetic resin, and its volume resistivity is 10 2 to 10 It shall have 8 Ω · cm.
Further, the width is preferably from 0.5 mm thin wire to 20 mm narrow band because it is economical.
In the illustrated example, the conductive resin layer 5 is provided as a single line, but a plurality of lines, preferably at regular intervals, may be provided in the circumferential direction of the outer hose 2.

更に、本発明の上記の特徴構成により、下記の効果をもたらすことが比較試験の結果判明した。
図1に示す帯電防止樹脂ホースAにつき、長さ1メートルのものと15メートルのものとをその各ホースAの該導電樹脂層5の両端末にテスターを当て電気抵抗値を測定した。その結果、長さ1メートルのものは150KΩ、15メートルのものは250KΩであった。
比較のため、前記の特許文献2の発明に倣い、樹脂チューブ本体の外面に長手方向に延び且つ本発明のホースAの該導電樹脂層5と同じ体積抵抗率と幅を有する一条の導電樹脂層を一体に形成した帯電防止樹脂ホースにつき、長さ1メートルのものと15メートルのものをその各チューブの該導電性部分の両端末にテスターを当て電気抵抗値を測定した。その結果、長さ1メートルのものは150KΩ、15メートルのものは2000KΩ(2MΩ)であった。
以上の比較試験から明らかなように、従来の帯電防止樹脂ホースは長くすると該導電樹脂層の電気抵抗値が急激に上昇し、長くなるほど帯電防止機能が著しく劣り、実用に供しなくなる傾向がある不都合を有するに対し、本発明の帯電防止樹脂ホースAは、長くしても電気抵抗値は緩やかに増大するにとどまり、良好な帯電防止機能を維持すると共に、従来の帯電防止樹脂ホースの上記の不都合を解消し得る効果をもたらす。この効果は、該導電樹脂層は、内外層ホース1,2間に介在させた螺旋状の導電線と接続していることによりもたらされる。 Further, it has been found as a result of comparative tests that the above-described characteristic configuration of the present invention brings about the following effects.
With respect to the antistatic resin hose A shown in FIG. 1, test pieces were applied to both ends of the conductive resin layer 5 of each of the hoses A having a length of 1 meter and a length of 15 meters, and the electrical resistance value was measured. As a result, the 1 meter length was 150KΩ, and the 15 meter length was 250KΩ.
For comparison, in accordance with the invention of Patent Document 2 described above, a single conductive resin layer extending in the longitudinal direction on the outer surface of the resin tube main body and having the same volume resistivity and width as the conductive resin layer 5 of the hose A of the present invention. As for the antistatic resin hose formed integrally with each other, test pieces were applied to both ends of the conductive portion of each tube of those having a length of 1 meter and 15 meters, and the electric resistance value was measured. As a result, the one with a length of 1 meter was 150 KΩ, and the one with a length of 15 meters was 2000 KΩ (2 MΩ).
As is clear from the above comparative tests, when the conventional antistatic resin hose is lengthened, the electrical resistance value of the conductive resin layer rises rapidly, and the longer the antistatic resin hose is, the inconvenience that the antistatic function is remarkably inferior and tends to become unusable. On the other hand, the antistatic resin hose A of the present invention has an electrical resistance value that gradually increases even if the antistatic resin hose A is lengthened, maintains a good antistatic function, and has the above disadvantages of the conventional antistatic resin hose. The effect that can be eliminated is brought about. This effect is brought about by the conductive resin layer being connected to a spiral conductive wire interposed between the inner and outer layer hoses 1 and 2.

図2は、本発明の他の実施形態の帯電防止樹脂ホースA′を示し、図2(a)はその一部を截除した斜視図、図2(b)はその横断面を示す。
同図の本発明の該ホースA′は、図1の実施例で使用した導電線4を螺旋状に編み込んだ網状補強筒3を介在させる代わり、前記の透明な内層ホース1と外層ホース2との間に銅などの金属線又は導電樹脂線から成る導電線4′を該内層ホース１の外周面に全長に亘り所望の一定のピッチを存し螺旋状に捲き付けた状態で介在させたもので、図1と同様に、該外層ホース2はその一部分2aとして、全長に亘り少なくとも一条の導電樹脂層5を一体成形したものである。而して、押出成形により該外層ホース2を該内層ホース1の外周面に圧着し一体成形することにより、一直線状の該導電樹脂層5の内面5aが、螺旋状の導電線4′の一定のピッチを存して該導電樹脂層5を横断する各捲線4a′,4a′,…において夫々圧着され、強固な電気的接続が得られるようにして成る耐圧性の透明な帯電防止樹脂ホースA′に構成したものである。
該内層ホース1の外周面に捲き付けた螺旋状の導電線4′は金属線でも導電樹脂線のどちらでも良い。この実施形態では、網状補強筒3に一定のピッチで編み込まれる螺旋状の金属線4と異なり、ピッチと太さを自由に選択し得られて構成でき、耐圧性でフレキシブルなホースA′に構成できる。その捲線4a′,4a′間のピッチは、例えば1mm〜100mmの範囲から選択することが好ましい。
該螺旋状の導電樹脂線4′は、例えば導電樹脂層5と同じ樹脂をベースに導電性の優れた粉体を所要量添加し、混練したものを固化成形したものである。
このようにして構成した本発明の耐圧製でフレキシブルな帯電防止樹脂ホースA′は、先の実施例に示したホースAと同様に、使用時は、該導電樹脂層5をアースとしての接地作業を容易にし、該内層ホース1内を流れる液体、気体などの流体の状況が観察できることはもとより、該ホースAと同様の作用効果をもたらし、帯電機能が確保された信頼性の高いホースとして使用できる。 FIG. 2 shows an antistatic resin hose A ′ according to another embodiment of the present invention, FIG. 2 (a) is a perspective view with a part thereof removed, and FIG. 2 (b) shows a cross section thereof.
The hose A ′ of the present invention in the figure is the same as the transparent inner layer hose 1 and the outer layer hose 2 described above, instead of interposing the mesh-like reinforcing cylinder 3 in which the conductive wire 4 used in the embodiment of FIG. A conductive wire 4 'made of a metal wire such as copper or a conductive resin wire is interposed between the outer peripheral surfaces of the inner layer hose 1 in a spiral manner with a desired constant pitch over the entire length. As in FIG. 1, the outer hose 2 is formed by integrally molding at least one conductive resin layer 5 over its entire length as a part 2a thereof. Thus, by pressing and molding the outer layer hose 2 to the outer peripheral surface of the inner layer hose 1 by extrusion molding, the straight inner surface 5a of the conductive resin layer 5 is fixed to the spiral conductive wire 4 ′. Pressure resistant transparent antistatic resin hose A that is crimped at each of the windings 4a ′, 4a ′,... Crossing the conductive resin layer 5 with a pitch of It is comprised in '.
The spiral conductive wire 4 'wound around the outer peripheral surface of the inner layer hose 1 may be either a metal wire or a conductive resin wire. In this embodiment, unlike the spiral metal wire 4 knitted into the mesh reinforcing cylinder 3 at a constant pitch, the pitch and thickness can be freely selected and configured, and the pressure-resistant and flexible hose A ′ is configured. it can. The pitch between the windings 4a 'and 4a' is preferably selected from a range of 1 mm to 100 mm, for example.
The spiral conductive resin wire 4 ′ is obtained by, for example, adding a required amount of powder having excellent conductivity based on the same resin as the conductive resin layer 5 and solidifying and molding the kneaded material.
The pressure-resistant and flexible antistatic resin hose A ′ of the present invention configured as described above is grounded when the conductive resin layer 5 is grounded in use, like the hose A shown in the previous embodiment. In addition to being able to observe the state of fluid such as liquid and gas flowing through the inner layer hose 1, it can be used as a highly reliable hose that has the same effect as the hose A and has a charged function. .

図3は、本発明の更に他の実施形態の帯電防止樹脂ホースA″を示し、図3(a)はその一部を截除した斜視図、図3(b)はその横断面図である。
図3から明らかなように、このホースA″は、該内層ホース1と該外層ホース2との間に、図1に示すと同様に、金属線4を螺旋状に編み込んだ網状補強筒3と該網状補強筒3の周面に図2に示すと同様に、全長に亘り一定の捲線ピッチを存して捲き付けた螺旋状の導電線4′とを嵌装介在せしめると共に、該外層ホース2の一部分2aを一体成形により全長に亘り設けた少なくとも一条の前記と同様の導電樹脂層5はその内面5aを、該網状補強筒3に編み込んだ螺旋状の金属線4の導電樹脂層5を一定のピッチで横断する捲線部4a,4a,…に夫々圧着せしめると同時に、螺旋状の金属線又は導電樹脂線から成る導電線4′の該導電樹脂層5を横断する捲線部4a′,4a′…に夫々圧着せしめた帯電防止樹脂ホースA″に構成したもので、これにより、耐圧性が更に向上すると共に、該導電樹脂層5の帯電防止機能をより安定良好にしたもので、先の2つの実施例と同様の作用効果をもたらす。 FIG. 3 shows an antistatic resin hose A ″ according to still another embodiment of the present invention, FIG. 3 (a) is a perspective view with a part thereof removed, and FIG. 3 (b) is a transverse sectional view thereof. .
As is apparent from FIG. 3, the hose A ″ includes a net-like reinforcing cylinder 3 in which a metal wire 4 is spirally knitted between the inner layer hose 1 and the outer layer hose 2 as shown in FIG. In the same manner as shown in FIG. 2, a helical conductive wire 4 ′ that is wound around the entire length of the mesh reinforcing cylinder 3 with a constant winding pitch is fitted and interposed, and the outer hose 2 The conductive resin layer 5 similar to the above is provided with a part 2a of the metal wire 4 over the entire length by integral molding, and the inner surface 5a of the conductive resin layer 5 of the spiral metal wire 4 braided into the mesh reinforcing cylinder 3 is constant. Are simultaneously crimped to the winding portions 4a, 4a,... Traversing at the pitch of the winding wires 4a ′, 4a ′ crossing the conductive resin layer 5 of the conductive wire 4 ′ made of a spiral metal wire or conductive resin wire. … And antistatic resin hose A ″ that has been crimped to each, which further improves pressure resistance. That where the antistatic function of the conductive resin layer 5 more stable good results in the same effect as two of the previous embodiments.

本発明の帯電防止樹脂ホースの製造において、共押出成形機により該内層ホース1と該外層ホース2とを押出成形する場合、相互界面の接着性が、選択した樹脂によっては比較的弱い場合には、所望により該内層ホース1の外周面に全長に亘り接着剤を極めて肉薄に塗布した後、その外周面に嵌装した上記の実施例で示した螺旋状の導電線4又は/及び導電線4a′を介して該外層ホース2と共に押出成形するようにして製造しても良い。   In the production of the antistatic resin hose of the present invention, when the inner layer hose 1 and the outer layer hose 2 are extruded by a coextrusion molding machine, the adhesiveness at the mutual interface is relatively weak depending on the selected resin. If desired, an adhesive is applied to the outer peripheral surface of the inner layer hose 1 over the entire length, and then the helical conductive wire 4 and / or the conductive wire 4a shown in the above-described embodiment fitted on the outer peripheral surface. It may be produced by extruding together with the outer layer hose 2 through a '.

1 内層ホース
2 外層ホース
3 金属線を螺旋状に編み込んだ網状補強筒
4 螺旋状の導電線、金属線
4a 捲線部
4′ 螺旋状の導電線、金属線、導電樹脂線
4a′ 捲線部
5 導電樹脂層
5a 導電樹脂層の内面 1 Inner layer hose
2 Outer layer hose
3 Reinforcing tube made of metal wire spirally woven
4 Spiral conductive wire, metal wire
4a
4 'spiral conductive wire, metal wire, conductive resin wire
4a ′
5 Conductive resin layer
5a Inside surface of conductive resin layer

Claims (5)

内層ホースと外層ホースとの間に、該内層ホースの外周面に全長に亘り所定のピッチを存して捲き付けて成る螺旋状の導電線を介在させ、且つ該外層ホースの一部として一体成形された長さ方向に延びる少なくとも一条の導電樹脂層の内面を該導電樹脂層に対し所定間隔を存し横断する各捲線部に圧着せしめたことを特徴とする帯電防止樹脂ホース。   Between the inner layer hose and the outer layer hose, a spiral conductive wire formed by being attached to the outer peripheral surface of the inner layer hose with a predetermined pitch over the entire length is interposed, and is integrally formed as a part of the outer layer hose. An antistatic resin hose characterized in that the inner surface of at least one strip of the conductive resin layer extending in the lengthwise direction is pressure-bonded to each winding portion that crosses the conductive resin layer at a predetermined interval. 該内層ホースを透明又は半透明の合成樹脂で構成し、該外層ホースの他の部分を透明な合成樹脂で構成したことを特徴とする請求項1に記載のホース。   2. The hose according to claim 1, wherein the inner layer hose is made of a transparent or translucent synthetic resin, and the other part of the outer layer hose is made of a transparent synthetic resin. 該螺旋状の導電線は、該内層ホースの外周面に全長に亘り嵌装した繊維糸から成る網状補強筒の一部として長さ方向に螺旋状に編み込んだ金属線であることを特徴とする請求項1又は2に記載のホース。   The spiral conductive wire is a metal wire spirally knitted in the longitudinal direction as a part of a mesh-like reinforcing cylinder made of fiber yarn fitted over the entire length of the outer peripheral surface of the inner layer hose. The hose according to claim 1 or 2. 該螺旋状の導電線は、該内層ホースの外周面に全長に亘り嵌装した螺旋状の金属線又は導電樹脂線であることを特徴とする請求項1又は2に記載のホース。   3. The hose according to claim 1, wherein the spiral conductive wire is a spiral metal wire or conductive resin wire fitted over the entire outer peripheral surface of the inner layer hose. 該螺旋状の導電線は、該内層ホースの外周面に全長に亘り嵌装した前記の金属線が螺旋状に編み込まれた網状補強筒と該網状補強筒の外周面に全長に亘り嵌装した螺旋状の金属線又は導電樹脂線との組み合わせであることを特徴とする請求項1又は2に記載のホース。   The helical conductive wire is fitted over the entire length of the outer periphery of the inner layer hose and the net reinforcement tube in which the metal wire is spirally knitted, and the outer periphery of the mesh reinforcement tube. 3. The hose according to claim 1, wherein the hose is a combination with a spiral metal wire or a conductive resin wire.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016084859A (en) * 2014-10-24 2016-05-19 株式会社プラ技研 Antistatic tube and extrusion molding device for the same
WO2017141901A1 (en) * 2016-02-19 2017-08-24 株式会社八興 Static electricity dissipating resin hose
CN117646832A (en) * 2024-01-29 2024-03-05 河北西伯力特种橡胶有限公司 Flame-retardant ultrahigh-pressure antistatic hose

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6757994B1 (en) 2019-04-12 2020-09-23 株式会社トヨックス Antistatic flexible tube

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159089A (en) * 1984-08-31 1986-03-26 横浜ゴム株式会社 Hose
JPS63112686U (en) * 1987-01-13 1988-07-20
JPS63177377U (en) * 1987-05-07 1988-11-17
JPS6424790U (en) * 1987-07-31 1989-02-10
JPH0196593U (en) * 1987-12-17 1989-06-27
JPH01279191A (en) * 1988-04-28 1989-11-09 Hitachi Cable Ltd Earth cable built-in plastic hose
JP3001708U (en) * 1994-03-04 1994-09-06 岩田塗装機工業株式会社 Synthetic resin hose
JP2008232326A (en) * 2007-03-22 2008-10-02 Toyox Co Ltd Pipe hose

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159089A (en) * 1984-08-31 1986-03-26 横浜ゴム株式会社 Hose
JPS63112686U (en) * 1987-01-13 1988-07-20
JPS63177377U (en) * 1987-05-07 1988-11-17
JPS6424790U (en) * 1987-07-31 1989-02-10
JPH0196593U (en) * 1987-12-17 1989-06-27
JPH01279191A (en) * 1988-04-28 1989-11-09 Hitachi Cable Ltd Earth cable built-in plastic hose
JP3001708U (en) * 1994-03-04 1994-09-06 岩田塗装機工業株式会社 Synthetic resin hose
JP2008232326A (en) * 2007-03-22 2008-10-02 Toyox Co Ltd Pipe hose

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016084859A (en) * 2014-10-24 2016-05-19 株式会社プラ技研 Antistatic tube and extrusion molding device for the same
WO2017141901A1 (en) * 2016-02-19 2017-08-24 株式会社八興 Static electricity dissipating resin hose
JPWO2017141901A1 (en) * 2016-02-19 2019-01-31 株式会社八興 Static dissipative resin hose
CN117646832A (en) * 2024-01-29 2024-03-05 河北西伯力特种橡胶有限公司 Flame-retardant ultrahigh-pressure antistatic hose
CN117646832B (en) * 2024-01-29 2024-03-29 河北西伯力特种橡胶有限公司 Flame-retardant ultrahigh-pressure antistatic hose

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