JP2000152480A - Method and device for enlarging diameter of elastic elastomer tubular body - Google Patents
Method and device for enlarging diameter of elastic elastomer tubular bodyInfo
- Publication number
- JP2000152480A JP2000152480A JP11065241A JP6524199A JP2000152480A JP 2000152480 A JP2000152480 A JP 2000152480A JP 11065241 A JP11065241 A JP 11065241A JP 6524199 A JP6524199 A JP 6524199A JP 2000152480 A JP2000152480 A JP 2000152480A
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- Prior art keywords
- diameter
- cylindrical body
- expanding
- elastic
- diameter portion
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、弾性エラストマー
筒状体の拡径方法および装置に係り、特に、架橋ポリエ
チレン絶縁電力ケーブルの接続部に用いる絶縁筒、絶縁
チューブ、その他弾性材料からなる接続部材の拡径方法
および装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for expanding the diameter of an elastic elastomer cylindrical body, and more particularly to an insulating cylinder, an insulating tube and other connecting members made of an elastic material used for a connecting portion of a crosslinked polyethylene insulated power cable. And a diameter expansion method and apparatus.
【０００２】[0002]
【従来の技術】例えば、架橋ポリエチレン絶縁電力ケー
ブルの導体接続部を絶縁するには、該導体接続部の外周
に弾性エラストマー筒状体（以下絶縁筒という）を覆せ
ることが行われている。絶縁筒は、導体相互を接続する
前に拡径した状態で、一方の電力ケーブル外周に挿通し
ておき、導体相互を接続した後に、該接続部上に引き戻
して拡径状態を解除し、これによって導体接続部を絶縁
筒で覆い、該導体接続部を絶縁するものである。2. Description of the Related Art For example, in order to insulate a conductor connection portion of a crosslinked polyethylene insulated power cable, an outer periphery of the conductor connection portion is covered with an elastic elastomer tubular body (hereinafter referred to as an insulation tube). The insulating cylinder is inserted into the outer periphery of one of the power cables in a state where the diameter is expanded before connecting the conductors, and after connecting the conductors, the insulating tube is pulled back on the connection portion to release the expanded state. Cover the conductor connection portion with an insulating cylinder to insulate the conductor connection portion.
【０００３】絶縁筒を拡径状態に維持するには拡径支持
体が使用されている。拡径支持体は、例えばプラスチッ
ク製リボンをスパイラル円筒状に巻回したもので、この
拡径支持体上に絶縁筒を配置することによって絶縁筒を
拡径状態に保持するものである。In order to maintain the diameter of the insulating cylinder in an expanded state, an expanded support is used. The diameter-enlarged support is, for example, a plastic ribbon wound in a spiral cylindrical shape. The insulating cylinder is placed on the diameter-enlarged support to hold the insulating cylinder in an expanded state.
【０００４】拡径支持体上に絶縁筒を配置するには絶縁
拡径装置が使用される。絶縁筒拡径装置として、従来、
図７に記載したものが知られている。この装置は、ベー
ス２１上に設置された複動油圧シリンダー２２を備えて
おり、この複動油圧シリンダー２２のピストン２３に絶
縁筒２４が挿入される。複動油圧シリンダー本体２２の
外側には拡径パイプ２５が設置されていて、その先端に
テーパ金具２６が配置されている。[0004] An insulating expansion device is used to arrange the insulating cylinder on the expansion support. Conventionally, as an insulation cylinder expanding device,
The one described in FIG. 7 is known. This device includes a double-acting hydraulic cylinder 22 installed on a base 21, and an insulating cylinder 24 is inserted into a piston 23 of the double-acting hydraulic cylinder 22. An enlarged-diameter pipe 25 is provided outside the double-acting hydraulic cylinder main body 22, and a taper fitting 26 is disposed at a tip of the pipe 25.
【０００５】このテーパ金具２６とピストン２３の先端
に設けた絶縁筒受け金具２７との間に絶縁筒２４を装着
し、油圧ポンプ２８を動作させることにより、ピストン
２３が複動油圧シリンダー本体内に入り、これによりピ
ストン２３の周囲の絶縁筒２４がテーパ金具２６により
拡径されて、拡径パイプ２５上に装着される。[0005] The insulating cylinder 24 is mounted between the tapered metal fitting 26 and the insulating cylinder receiving metal fitting 27 provided at the tip of the piston 23, and the hydraulic pump 28 is operated to move the piston 23 into the double-acting hydraulic cylinder body. As a result, the diameter of the insulating cylinder 24 around the piston 23 is expanded by the taper fitting 26, and the insulating cylinder 24 is mounted on the expanded pipe 25.
【０００６】[0006]
【発明が解決しようとする課題】しかし、このような従
来の絶縁筒拡径装置では、絶縁筒２４は、ピストン２３
の先端に設けた絶縁筒受け金具２７により上から下方に
押されるようになっているため、受け金具２７はテーパ
金具２６の先端に当接して停止し、テーパ金具２６の終
りまで絶縁筒を通過させることが出来ないという問題が
あった。更に、金具２７のような剛体で絶縁筒２４を押
すと、絶縁筒２４の端部が金具２７に食い込むような状
態となり、絶縁筒２４の端部が削られてしまうという問
題があった。However, in such a conventional insulating cylinder enlarging apparatus, the insulating cylinder 24 has a piston 23
Is pressed downward from above by an insulating cylinder receiving metal fitting 27 provided at the end of the tapered metal fitting 26, the receiving metal fitting 27 comes into contact with the tip of the tapered metal fitting 26 and stops, and passes through the insulating cylinder until the end of the tapered metal fitting 26. There was a problem that it could not be done. Further, when the insulating cylinder 24 is pressed by a rigid body such as the metal fitting 27, the end of the insulating cylinder 24 is cut into the metal fitting 27, and there is a problem that the end of the insulating cylinder 24 is shaved.
【０００７】本発明は、このような事情の下になされ、
容易かつ確実に弾性エラストマー筒状体を拡径すること
が可能な弾性エラストマー筒状体の拡径方法を提供する
ことを目的とする。[0007] The present invention has been made under such circumstances,
An object of the present invention is to provide a method for expanding the diameter of an elastic elastomer cylindrical body that can easily and surely expand the diameter of the elastic elastomer cylindrical body.
【０００８】本発明の他の目的は、拡径用芯材と弾性エ
ラストマー筒状体の界面に確実に潤滑材を供給すること
が出来、弾性エラストマー筒状体の拡径を容易に行うこ
とが可能であるとともに、弾性エラストマー筒状体を劣
化させることのない弾性エラストマー筒状体の拡径方法
を提供することを目的とする。Another object of the present invention is to provide a reliable supply of a lubricant to the interface between the core member for expanding diameter and the elastic elastomer cylindrical body, and to facilitate the expansion of the elastic elastomer cylindrical body. An object of the present invention is to provide a method for expanding the diameter of an elastic elastomer cylindrical body that is possible and does not deteriorate the elastic elastomer cylindrical body.
【０００９】本発明の更に他の目的は、容易かつ確実に
弾性エラストマー筒状体を拡径することが可能な弾性エ
ラストマー筒状体の拡径装置を提供することにある。Still another object of the present invention is to provide a device for expanding the diameter of an elastic elastomer cylindrical body which can easily and surely expand the diameter of the elastic elastomer cylindrical body.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するた
め、本発明は、駆動装置に取付けられた、太径部、テー
パー部および細径部を備えた拡径用芯材の細径部に、拡
径される弾性エラストマー筒状体および弾性ダミー筒状
体を、前記細径部がそれら筒状体内に挿入されるように
配置する工程、前記駆動装置を作動させて、前記エラス
トマー筒状体を細径部、テーパー部および太径部の順に
滑らせて、太径部上に拡径して配置させる工程、および
前記駆動装置を作動させてピストンを前進させ、前記拡
径用芯材を移動させることにより、前記エラストマー筒
状体を太径部から、前記拡径用芯材の太径部内の空洞内
に配置されている拡径支持体上に移動させ、拡径保持す
る工程を具備する弾性エラストマー筒状体の拡径方法を
提供する。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a small-diameter portion of a core member having a large-diameter portion, a tapered portion, and a small-diameter portion attached to a driving device. Arranging the elastic elastomer tubular body and the elastic dummy tubular body whose diameters are to be expanded such that the small-diameter portion is inserted into the tubular body; and activating the driving device to produce the elastomer tubular body. Sliding the small diameter portion, the tapered portion and the large diameter portion in order, to expand and arrange on the large diameter portion, and actuate the driving device to advance the piston, the core material for diameter expansion Moving the elastomer cylindrical body from the large-diameter portion to a large-diameter support disposed in a cavity in the large-diameter portion of the core for diameter expansion, and holding the expanded diameter. The present invention provides a method for expanding the diameter of an elastic elastomer cylindrical body.
【００１１】また、本発明は、駆動装置に取付けられ
た、太径部、テーパー部および細径部からなる拡径用芯
材の細径部に、拡径される弾性エラストマー筒状体およ
び弾性ダミー筒状体を、前記細径部がそれら筒状体内に
挿入した状態で配置する工程、および前記駆動装置を作
動させて、前記エラストマー筒状体を細径部、テーパー
部および太径部の順に滑らせて、太径部の外周部に配置
された拡径支持体上に移動させ、拡径保持する工程を具
備する弾性エラストマー筒状体の拡径方法を提供する。Further, the present invention provides an elastic elastomer tubular member having a large-diameter portion, a tapered portion, and a small-diameter portion attached to a driving device, the elastic elastomer tubular member having a large diameter. A step of arranging the dummy tubular body in a state where the small-diameter portion is inserted into the tubular body, and activating the driving device to convert the elastomer tubular body into a small-diameter portion, a tapered portion, and a large-diameter portion. The present invention provides a method for expanding the diameter of an elastic elastomer tubular body, which comprises a step of sequentially sliding, moving on an expanded support placed on the outer peripheral portion of a large diameter portion, and holding the expanded diameter.
【００１２】更に、本発明は、支持台上に保持された、
太径部、テーパー部および細径部からなる拡径用芯材、
前記拡径用芯材を移動させるための駆動装置、前記拡径
用芯材の細径部に、拡径される弾性エラストマー筒状体
とともに貫通するように配置され、支持台上に保持され
た弾性ダミー筒状体、および前記拡径用芯材の太径部内
の空洞内に配置された拡径支持体を具備することを特徴
とする弾性エラストマー筒状体の拡径装置を提供する。Further, the present invention provides a method for manufacturing a semiconductor device, comprising:
Core material for diameter expansion consisting of a large diameter part, a tapered part and a small diameter part,
A driving device for moving the core member for diameter expansion, disposed in a small diameter portion of the core member for diameter expansion so as to penetrate with the elastic elastomer cylindrical body to be expanded, and held on a support base. An apparatus for expanding a diameter of an elastic elastomer cylindrical body, comprising: an elastic dummy cylindrical body; and a diameter expanding support body disposed in a cavity in a large diameter portion of the diameter expanding core material.
【００１３】更にまた、本発明は、支持台上に保持され
た、太径部、テーパー部および細径部からなる拡径用芯
材、前記拡径用芯材を移動させるための駆動装置、前記
拡径用芯材の細径部に、拡径される弾性エラストマー筒
状体とともに貫通されて配置され、支持台上に保持され
た弾性ダミー筒状体、および前記拡径用芯材の太径部の
外周部に配置された拡径支持体を具備することを特徴と
する弾性エラストマー筒状体の拡径装置を提供する。[0013] Still further, the present invention provides a diameter-enlarging core material having a large-diameter portion, a tapered portion, and a small-diameter portion, which is held on a support base, and a driving device for moving the diameter-enlarging core material. An elastic dummy cylindrical body, which is disposed in a small-diameter portion of the diameter-enlarging core material and penetrates together with the elastic elastomer cylindrical body whose diameter is expanded, and is held on a support table, Provided is a device for expanding a diameter of an elastic elastomer cylindrical body, comprising a diameter expanding support provided at an outer peripheral portion of a diameter portion.
【００１４】以上のように構成される本発明の方法およ
び装置によると、ダミー筒状体を用いており、このダミ
ー筒状体により弾性エラストマー筒状体の移動を妨げつ
つ、ダミー筒状体内に拡径用芯材の細径部およびテーパ
ー部までが確実に侵入するようになっているため、弾性
エラストマー筒状体の端部が削られることなく、太径部
ないし拡径支持体上への弾性エラストマー筒状体の移動
が可能である。According to the method and apparatus of the present invention configured as described above, the dummy cylinder is used, and while the movement of the elastic elastomer cylinder is prevented by the dummy cylinder, the dummy cylinder is inserted into the dummy cylinder. Since the small diameter portion and the tapered portion of the core material for diameter enlargement are surely penetrated, the end of the elastic elastomer tubular body is not shaved, and the large diameter portion or the large diameter support member The elastic elastomer cylindrical body can be moved.
【００１５】特に、ダミー筒状体を、エラストマー筒状
体よりも大きい硬度を有する材料により構成した場合に
は、ダミー筒状体が座屈するのを緩和することが出来、
安定してエラストマー筒状体の拡径を行うことが可能で
ある。In particular, when the dummy cylinder is made of a material having a higher hardness than the elastomer cylinder, it is possible to reduce the buckling of the dummy cylinder.
It is possible to stably expand the diameter of the elastomer cylindrical body.
【００１６】また特に、太径部内部の空洞に拡径支持体
を配置することにより、拡径支持体上への弾性エラスト
マー筒状体の装着が容易となる。Further, in particular, by disposing the enlarged diameter support in the cavity inside the large diameter portion, it becomes easy to mount the elastic elastomer cylindrical body on the enlarged diameter support.
【００１７】また、エラストマー筒状体の拡径に際し、
エラストマー筒状体と拡径用芯材との間の界面に、エラ
ストマー筒状体に浸透せず、かつエラストマー筒状体を
劣化させない低摩擦部材を供給することにより、低摩擦
部材がエラストマー筒状体に浸透して界面において不足
することがなく、所望の潤滑効果を安定して発揮し、エ
ラストマー筒状体のスムースな拡径を行うことが出来
る。また、長期にわたり使用しても、低摩擦部材により
エラストマー筒状体が劣化することがない。In addition, when expanding the diameter of the elastomer cylindrical body,
By supplying a low-friction member that does not penetrate into the elastomer cylinder and does not deteriorate the elastomer cylinder at the interface between the elastomer cylinder and the core member for diameter expansion, the low-friction member has a cylindrical shape. The desired lubricating effect is stably exhibited without penetrating into the body and becoming insufficient at the interface, and the smooth expansion of the elastomer cylindrical body can be performed. Further, even when used for a long time, the elastomer cylindrical body does not deteriorate due to the low friction member.
【００１８】本発明の方法および装置は、特に、架橋ポ
リエチレン絶縁電力ケーブルの接続部に好適に適用する
ことが出来る。The method and apparatus of the present invention can be particularly suitably applied to a connection portion of a crosslinked polyethylene insulated power cable.
【００１９】[0019]
【発明の実施の形態】以下、図面を参照して、本発明の
実施の形態について説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００２０】図１は、本発明の第１の実施形態に係る弾
性エラストマー筒状体の拡径装置の概略を示す図であ
る。弾性エラストマー筒状体である絶縁筒２の拡径に用
いられる拡径用芯材１は、図１に示すように、細径部１
ａ、テーパ部１ｂおよび太径部１ｃとから構成される。
拡径用芯材１は、例えばステンレス等の硬質金属材料、
または強化プラスチック等により構成することが出来
る。この細径部１ａ、テーパ部１ｂおよび太径部は一体
形成でなく別体形成であってもよい。FIG. 1 is a view schematically showing a device for expanding the diameter of an elastic elastomer cylindrical body according to a first embodiment of the present invention. As shown in FIG. 1, the core member 1 for expanding the diameter used for expanding the insulating cylinder 2 which is an elastic elastomer cylindrical body has a small diameter portion 1.
a, a tapered portion 1b and a large diameter portion 1c.
The core material 1 for diameter expansion is, for example, a hard metal material such as stainless steel,
Alternatively, it can be made of reinforced plastic or the like. The small-diameter portion 1a, the tapered portion 1b, and the large-diameter portion may be formed separately instead of being formed integrally.
【００２１】図６は、拡径用芯材１を示す断面図であ
る。図６からわかるように、太径部１ｃの内部は、空洞
となっており、絶縁筒２が装着される拡径用支持体７が
配置されている。拡径用支持体７としては、例えばプラ
スチック製リボンをスパイラル円筒状に巻回したものと
することが出来る。絶縁筒２を構成する材料としては、
ＥＰゴム、クロロプレン、シリコームゴム等を用いるこ
とが出来る。この拡径用支持体７は、端部が太径部１ｃ
の端部から一定長突出した状態で、太径部１ｃの内部に
配置されている。FIG. 6 is a sectional view showing the core member 1 for diameter expansion. As can be seen from FIG. 6, the inside of the large-diameter portion 1c is hollow, and a diameter-enlargement support 7 on which the insulating cylinder 2 is mounted is arranged. The diameter-enlargement support 7 may be, for example, a plastic ribbon wound in a spiral cylindrical shape. As a material for forming the insulating cylinder 2,
EP rubber, chloroprene, silicone rubber and the like can be used. The diameter-enlargement support 7 has a large-diameter portion 1c at the end.
Is disposed inside the large-diameter portion 1c in a state of protruding from the end portion by a predetermined length.
【００２２】拡径用芯材１のテーパ部１ｂは、５°〜３
０°程度のテーパ角（水平に対する傾斜角）を有するの
が好ましい。このテーパ角は、外径と長さを適宜選定す
ることにより、調整可能である。テーパ角が大き過ぎる
と、拡径用芯材１と絶縁筒２の摩擦力が大きくなり過ぎ
て、拡径が困難となり、逆にテーパ角が小さ過ぎると、
油圧シリンダのストロークが長くなり過ぎて、装置が大
型化してしまう。The tapered portion 1b of the core member 1 for diameter expansion is 5 ° to 3 °.
It is preferable to have a taper angle of about 0 ° (inclination angle with respect to the horizontal). This taper angle can be adjusted by appropriately selecting the outer diameter and the length. If the taper angle is too large, the frictional force between the core member for diameter expansion 1 and the insulating cylinder 2 becomes too large, and it becomes difficult to increase the diameter. Conversely, if the taper angle is too small,
The stroke of the hydraulic cylinder becomes too long, and the device becomes large.
【００２３】拡径用芯材１の太径部１ｃは、支持台４上
に設置された駆動装置である油圧シリンダ５のピストン
先端に取付けられており、細径部１ａには、絶縁筒２お
よびダミー絶縁筒３が、貫通して配置されている。ダミ
ー絶縁筒３は、ダミー絶縁筒受け６により支持されてい
る。The large-diameter portion 1c of the diameter-enlarging core material 1 is attached to the tip of a piston of a hydraulic cylinder 5 which is a driving device installed on the support base 4, and the thin-diameter portion 1a is provided with an insulating cylinder 2 And a dummy insulating cylinder 3 are arranged so as to penetrate. The dummy insulating cylinder 3 is supported by a dummy insulating cylinder receiver 6.
【００２４】拡径用芯材１の表面および／または絶縁筒
２の内面には、低摩擦部材である潤滑材が塗布される。
即ち、拡径用芯材１と絶縁筒２との間の界面には、潤滑
材が供給される。潤滑材としては、絶縁筒２に浸透しに
くく、絶縁筒２に膨潤等の劣化を生じさせないオイルま
たはグリスを用いることが望ましい。そのような潤滑材
としては、不活性であり、分子量の大きいフッ素グリ
ス、フルオロシリコ−ングリス、フッ素オイル、フルオ
ロシリコ−ンオイル等を挙げることが出来る。これらの
潤滑材は、特に低粘度であるものが好ましい。潤滑材の
好ましい粘度は、３００〜６００ｃＳｔである。A lubricant as a low-friction member is applied to the surface of the core member 1 for diameter expansion and / or the inner surface of the insulating cylinder 2.
That is, a lubricant is supplied to the interface between the core member 1 for diameter expansion and the insulating cylinder 2. As the lubricant, it is desirable to use oil or grease that does not easily penetrate into the insulating cylinder 2 and does not cause deterioration such as swelling in the insulating cylinder 2. Examples of such a lubricant include inert, high molecular weight fluorine grease, fluorosilicone grease, fluorine oil, fluorosilicone oil and the like. It is preferable that these lubricants have a particularly low viscosity. The preferred viscosity of the lubricant is 300-600 cSt.
【００２５】特に、絶縁筒２がシリコーンゴムにより構
成される場合には、潤滑材として絶縁筒２と同種の材
料、例えばシリコーングリス又はオイルを用いることは
好ましくない。In particular, when the insulating cylinder 2 is made of silicone rubber, it is not preferable to use the same material as the insulating cylinder 2, for example, silicone grease or oil, as the lubricant.
【００２６】拡径用芯材１と絶縁筒２との間の界面への
潤滑材の供給は、拡径用芯材１の表面および／または絶
縁筒２の内面に潤滑材を塗布することに限らず、次の方
法で行うことが出来る。The supply of the lubricant to the interface between the core 1 for diameter expansion and the insulating cylinder 2 is performed by applying the lubricant to the surface of the core 1 for diameter expansion and / or the inner surface of the insulating cylinder 2. Not limited to this, the following method can be used.
【００２７】（１）拡径用芯材１の外表面を微小な連続
気孔を有する材料で構成し、この中に潤滑材を含浸させ
ておく。そうすることにより、拡径用芯材１を絶縁筒２
内に挿入し、絶縁筒２を拡径する際に、この連続気孔か
ら潤滑材を拡径用芯材１と絶縁筒２との間の界面に供給
することが出来る。(1) The outer surface of the core member 1 is made of a material having fine continuous pores, and a lubricant is impregnated therein. By doing so, the core material for diameter expansion 1 is
When the insulating tube 2 is inserted into the inside and the diameter of the insulating tube 2 is expanded, a lubricant can be supplied to the interface between the core member 1 for expanding the diameter and the insulating tube 2 from the continuous pores.
【００２８】（２）拡径用芯材１の外表面に、ローレッ
ト加工やサンジング加工等の機械加工により微小な凹凸
を形成し、この凹凸に潤滑材を保持させる。このような
構成によると、拡径の際に、絶縁筒２の端部で潤滑材を
そぎ落してしまって潤滑材の不足が生ずることがない。(2) Fine irregularities are formed on the outer surface of the core member for diameter expansion 1 by machining such as knurling or sanding, and a lubricant is held in these irregularities. According to such a configuration, when the diameter is increased, the lubricant does not fall off at the end of the insulating cylinder 2 and shortage of the lubricant does not occur.
【００２９】（３）図８に示すように、拡径用芯材１の
外表面を、潤滑材を内蔵した弾性材料３１で被覆する。
そうすることにより、拡径用芯材を絶縁筒内に挿入し、
絶縁筒を拡径する際に、絶縁筒の収縮力によって、弾性
材料３１中の潤滑材が拡径用芯材と絶縁筒との間の界面
に自己供給される。(3) As shown in FIG. 8, the outer surface of the core member 1 for diameter expansion is covered with an elastic material 31 containing a lubricant.
By doing so, insert the core material for diameter expansion into the insulating cylinder,
When the diameter of the insulating cylinder is expanded, the lubricating material in the elastic material 31 is supplied to the interface between the core for expansion and the insulating cylinder by the contraction force of the insulating cylinder.
【００３０】拡径される弾性エラストマー筒状体である
絶縁筒２は、図２（ａ）にその縦断面、図２（ｂ）に図
２（ａ）のＡ−Ａ断面を示すように、内部半導電層８、
絶縁層９および外部半導電層１０から構成される。内部
半導電層８、絶縁層９および外部半導電層１０を構成す
る材料としては、ＥＰゴム、クロロプレン、シリコーム
ゴム等が用いられる。また、絶縁筒２は、長さＬが５０
０〜１０００ｍｍ程度、内径φ１が２０〜１００ｍｍ程
度、外径φ２が１００〜２５０ｍｍ程度である。As shown in FIG. 2 (a), a longitudinal section of the insulating cylinder 2, which is an elastic elastomer cylindrical body whose diameter is expanded, and FIG. 2 (b) shows an AA section of FIG. Internal semiconductive layer 8,
It comprises an insulating layer 9 and an external semiconductive layer 10. EP rubber, chloroprene, silicone rubber, or the like is used as a material for forming the inner semiconductive layer 8, the insulating layer 9, and the outer semiconductive layer 10. The insulating tube 2 has a length L of 50.
The inner diameter φ1 is about 20 to 100 mm, and the outer diameter φ2 is about 100 to 250 mm.
【００３１】なお、拡径用支持体７は、図１および図６
に示すように、拡径用芯材１の太径部１ｃ内の空洞に配
置されるだけでなく、図３に示すように、太径部１ｃの
径をテーパ部１ｂの最大径よりも小さくし、拡径用支持
体７を太径部１ｃの外周囲に配置してもよい。この場
合、太径部１ｃの径は、拡径用支持体７の内径と同程度
であり、太径部１ｃのテーパ部１ｂとは反対側の端部に
はストッパー１ｄが着脱可能に取付けられている。この
ストッパー１ｄにより、拡径用支持体７の位置決めが行
われる。The diameter expanding support 7 is shown in FIGS.
As shown in FIG. 3, the diameter of the large diameter portion 1c is smaller than the maximum diameter of the tapered portion 1b, as shown in FIG. Then, the diameter-enlargement support 7 may be arranged around the large-diameter portion 1c. In this case, the diameter of the large-diameter portion 1c is substantially the same as the inner diameter of the diameter-enlargement support 7, and a stopper 1d is detachably attached to an end of the large-diameter portion 1c opposite to the tapered portion 1b. ing. The stopper 1d positions the diameter-enlargement support 7.
【００３２】図３に示すような拡径用支持体７の構成と
することにより、絶縁筒２の太径部１ｃへの相対的移動
がそのまま拡径用支持体７上への装着となり、拡径・装
着作業を簡単とすることが出来る。By adopting the configuration of the diameter-enlargement support 7 as shown in FIG. 3, the relative movement of the insulating cylinder 2 to the large-diameter portion 1c is directly mounted on the diameter-enlargement support 7, and is enlarged. Diameter and mounting work can be simplified.
【００３３】拡径用支持体７は、弾性エラストマー筒状
体との間の摩擦が出来るだけ少ない材料により構成する
のが好ましい。The support 7 for expanding the diameter is preferably made of a material having a friction as small as possible between the support and the elastic elastomer cylindrical body.
【００３４】また、拡径用支持体７の表面には、上述し
た拡径用芯材１と同様に、潤滑材を塗布しておくことが
好ましい。使用される潤滑材としては、上述した拡径用
芯材１と絶縁筒２との間の界面へ供給される潤滑材と同
様のものを使用することが出来る。この拡径用支持体７
の外径は、例えば４０〜２００ｍｍ程度である。It is preferable that a lubricant is applied to the surface of the diameter-enlargement support 7 in the same manner as the above-described diameter-enlargement core material 1. As the lubricating material to be used, the same lubricating material supplied to the interface between the core member for diameter expansion 1 and the insulating cylinder 2 described above can be used. This expanding support 7
Has an outer diameter of, for example, about 40 to 200 mm.
【００３５】また、ダミー絶縁筒３は、座屈するのを防
止するため、拡径される絶縁筒２よりも硬度の大きい材
料により構成されるのが好ましい。そのような材料とし
て、絶縁材料よりカーボン含有導電材料のほうが硬度が
高く、例えば全体を導電材料により構成したものを用い
ることが出来る。The dummy insulating tube 3 is preferably made of a material having a higher hardness than that of the insulating tube 2 whose diameter is increased in order to prevent buckling. As such a material, a carbon-containing conductive material has a higher hardness than an insulating material, and for example, a material formed entirely of a conductive material can be used.
【００３６】次に、図４および図５を参照して、本発明
の第１の実施形態に係る弾性エラストマー筒状体の拡径
および装着の具体的プロセスについて説明する。Next, with reference to FIGS. 4 and 5, a specific process of expanding and mounting the elastic elastomer cylindrical body according to the first embodiment of the present invention will be described.
【００３７】図４（ａ）に示すように、まず支持台４上
に設置された油圧シリンダ５のピストン先端に、拡径用
芯材１を取り付ける。拡径用芯材１は、細径部１ａ、テ
ーパ部１ｂおよび太径部１ｃから構成される。この拡径
用芯材１の細径部１ａに、絶縁筒２と、弾性体からなる
ダミー絶縁筒３を貫通させて配置する。As shown in FIG. 4 (a), first, the diameter expanding core material 1 is attached to the tip of the piston of the hydraulic cylinder 5 installed on the support base 4. The diameter-enlarging core 1 includes a small-diameter portion 1a, a tapered portion 1b, and a large-diameter portion 1c. An insulating tube 2 and a dummy insulating tube 3 made of an elastic body are penetrated and arranged in the small-diameter portion 1a of the core member 1 for diameter expansion.
【００３８】拡径用芯材１は拡径用芯材受け１６によ
り、絶縁筒２は絶縁筒受け１７により、ダミー絶縁筒３
はダミー絶縁筒受け１８によりそれぞれ支持される。こ
の時、拡径用芯材１の表面および／または絶縁筒２の内
面には、潤滑材として、例えば弗素オイルまたはグリー
スが塗布されている。The core 1 for diameter expansion is supported by the core receiver 16 for diameter expansion, and the insulating cylinder 2 is supported by the insulating cylinder receiver 17.
Are supported by the dummy insulating cylinder receivers 18, respectively. At this time, for example, fluorine oil or grease is applied as a lubricant to the surface of the core member 1 for diameter expansion and / or the inner surface of the insulating cylinder 2.
【００３９】次いで、図示しない油圧ポンプにより油圧
シリンダ５のピストンを前進させると、図４（ｂ）に示
すように、拡径用芯材１は、まずテーパ部１ｂが絶縁筒
２内に侵入し、次いでダミー絶縁筒３内に入るに至る。
この時、太径部１ｃが絶縁筒２内にあり、絶縁筒２を拡
径する。ダミー絶縁筒３の右端部はダミー絶縁筒受け１
８により保持されているので、絶縁筒２およびダミー絶
縁筒３は、その移動が妨げられている。Next, when the piston of the hydraulic cylinder 5 is advanced by a hydraulic pump (not shown), as shown in FIG. 4 (b), the tapered portion 1b of the diameter expanding core 1 first enters the insulating cylinder 2. Then, it enters the dummy insulating cylinder 3.
At this time, the large-diameter portion 1c is inside the insulating cylinder 2, and the diameter of the insulating cylinder 2 is increased. The right end of the dummy insulating tube 3 is a dummy insulating tube receiver 1
8, the insulating cylinder 2 and the dummy insulating cylinder 3 are prevented from moving.
【００４０】次に、図５（ａ）に示すように、油圧ポン
プにより油圧シリンダ５のピストンを後退させると、拡
径用芯材１は、その太径部１ｃに拡径した絶縁筒２を装
着したまま後退し、図４（ａ）と同じ位置で停止する。
この時、絶縁筒２の一端側がは、拡径用芯材受け１６に
係止される。Next, as shown in FIG. 5 (a), when the piston of the hydraulic cylinder 5 is retracted by the hydraulic pump, the diameter-enlarging core material 1 moves the insulating cylinder 2 whose diameter is expanded to its large diameter portion 1c. The robot moves backward while being mounted, and stops at the same position as in FIG.
At this time, one end side of the insulating cylinder 2 is engaged with the core receiving member 16 for diameter expansion.
【００４１】その後、図５（ｂ）に示すように、拡径し
た絶縁筒２の右端部を絶縁筒受け１７により保持した状
態で、再び油圧シリンダ５のピストンを前進させると、
拡径用芯材１のみが右方向に移動し、これに伴って、太
径部１ｃ内の拡径用支持体７上に絶縁筒２の端部が縮径
して係合し、順次、拡径用支持体７上に移動し、絶縁筒
２が拡径された状態で拡径用支持体７上に装着される。Thereafter, as shown in FIG. 5B, when the piston of the hydraulic cylinder 5 is advanced again with the right end of the expanded insulating cylinder 2 held by the insulating cylinder receiver 17,
Only the diameter-enlarging core material 1 moves rightward, and accordingly, the end of the insulating cylinder 2 is engaged with the diameter-expanding support 7 in the large-diameter portion 1c by reducing the diameter. It moves onto the diameter-enlargement support 7 and is mounted on the diameter-enlargement support 7 in a state where the insulating tube 2 is expanded in diameter.
【００４２】以上のように、絶縁筒２は、最初の工程で
拡径用芯材１上に拡径されて保持され、次の工程で拡径
用支持体７上に拡径された状態で装着されるという、２
工程で絶縁筒２の拡径・装着作業を行うことが出来る。
なお、ダミー絶縁筒３を更に長くし、シリンダーのスト
ロークを延ばすことにより、拡径用芯材１を左方向に移
動させることなく、右方向への移動のみで、即ち、１工
程で絶縁筒２の拡径・装着作業を行うことも可能であ
る。As described above, the insulating tube 2 is expanded and held on the core member 1 in the first step, and is expanded on the support member 7 in the next step. To be attached, 2
In the process, the work of expanding and mounting the insulating cylinder 2 can be performed.
In addition, the dummy insulating cylinder 3 is further lengthened and the stroke of the cylinder is extended, so that the diameter expanding core material 1 does not move to the left, but only moves to the right, that is, in one process, the insulating cylinder 2 It is also possible to carry out the work of diameter enlargement and mounting.
【００４３】また、駆動装置としては、油圧シリンダー
の他に空気シリンダー等、任意の装置を使用することが
出来る。As the driving device, any device such as a pneumatic cylinder other than a hydraulic cylinder can be used.
【００４４】次に、潤滑材として、トルエン、アセト
ン、エタノールおよびフッ素オイルを用い、上述の方法
により、ステンレス製の拡径用芯材によってシリコンゴ
ム製の絶縁筒の拡径を行った。なお、トルエンは、揮発
性が低いため、潤滑性保持性を期待して用い、アセトン
は揮発性が高いため、揮発による内圧の上昇を期待して
用い、エタノールおよびフッ素オイルは、その高い潤滑
性を期待して用いたものである。Next, using a lubricating agent of toluene, acetone, ethanol and fluorine oil, a silicon rubber insulating cylinder was expanded with a stainless steel expanding core by the above-described method. Since toluene has low volatility, it is expected to maintain lubricity.Acetone has high volatility, and is expected to increase internal pressure due to volatilization.Ethanol and fluorine oil have high lubricity. It was used in expectation.
【００４５】上述の図４および図５に示す方法により、
ステンレス製の拡径用芯材によってシリコンゴム製の絶
縁筒の拡径を行った。その結果、潤滑材としてトルエン
およびエタノールを用いた場合には、絶縁筒が拡径用芯
材のテーパー部に乗り上げた時点で動かなくなってしま
った。また、アセトンを用いた場合にも、摩擦力が大き
く、優れた潤滑性を得ることが出来なかった。By the method shown in FIGS. 4 and 5 described above,
The diameter of the insulating cylinder made of silicone rubber was expanded with a stainless steel expanding core. As a result, when toluene and ethanol were used as the lubricant, the insulating cylinder did not move when it climbed on the tapered portion of the core for diameter expansion. Also, when acetone was used, the frictional force was large, and excellent lubricity could not be obtained.
【００４６】これに対し、潤滑材としてフッ素オイルを
用いた場合には、絶縁筒およびダミー絶縁筒の拡径を、
座屈することなく、比較的スムースに行うことが出来
た。On the other hand, when fluorine oil is used as the lubricant, the diameter of the insulating cylinder and the dummy insulating cylinder must be increased.
It was relatively smooth without buckling.
【００４７】次に、潤滑材として種々のフッ素オイルを
用いて、同様に、シリコンゴム製の絶縁筒の拡径を行っ
た。フッ素オイルの種類を下記表１に、拡径の条件およ
び効果を下記表２に示す。フッ素オイルは、いずれもア
ウジモンド社製である。Next, the diameter of the silicone rubber insulating cylinder was similarly expanded using various fluorine oils as the lubricant. The types of fluorine oil are shown in Table 1 below, and the conditions and effects of the diameter expansion are shown in Table 2 below. Fluorine oils are all manufactured by Ausimond.
【００４８】[0048]
【表１】 [Table 1]
【００４９】[0049]
【表２】 [Table 2]
【００５０】注１）油圧レベル４０kgf/cm2 で２トンの
トルク発生 注２）数値は各々２回実施した平均値を記録 なお、上記表２における拡径用芯材Ａは、表面に鏡面仕
上げおよびニムフロン加工を行ったもの、拡径用芯材Ｂ
は、表面にショットブラスト処理およびニムフロン加工
を行ったものである。Note 1) Two tons of torque are generated at a hydraulic pressure level of 40 kgf / cm 2 Note 2) The numerical values are the average values recorded twice, and the core material A for expanding in Table 2 above has a mirror-finished surface. And Nimflon processed, core material B for diameter expansion
Is obtained by subjecting the surface to shot blasting and Nimflon processing.
【００５１】上記表２から、フッ素オイルとして、粘性
の低いＹ４５およびＭ６０を用いた場合に、最も作業性
が良好であり、かつ使用量も少なくてすむことがわか
る。From the above Table 2, it can be seen that when Y45 and M60, which have low viscosity, are used as the fluorine oil, the workability is the best and the use amount is small.
【００５２】[0052]
【発明の効果】以上詳細に説明したように、本発明の拡
径方法および装置によると、ダミー筒状体を用いてお
り、ダミー筒状体により弾性エラストマー筒状体の移動
を妨げつつ、ダミー筒状体内に拡径用芯材の細径部およ
びテーパー部までが確実に侵入するようになっているた
め、弾性エラストマー筒状体の端部が削られることな
く、太径部ないし拡径支持体上への弾性エラストマー筒
状体の移動が可能である。As described above in detail, according to the diameter expanding method and the apparatus of the present invention, the dummy tubular body is used, and the dummy tubular body prevents the elastic elastomer tubular body from moving while the dummy tubular body is being moved. Since the small-diameter part and the tapered part of the core material for diameter expansion enter the cylindrical body without fail, the end of the elastic elastomer cylindrical body is not shaved, and the large-diameter part or the large-diameter support is supported. Movement of the elastomeric tubular body over the body is possible.
【００５３】特に、ダミー筒状体を、エラストマー筒状
体よりも大きい硬度を有する材料により構成した場合に
は、ダミー筒状体が座屈するのを緩和することが出来、
安定してエラストマー筒状体の拡径を行うことが可能で
ある。In particular, when the dummy cylinder is made of a material having a hardness higher than that of the elastomer cylinder, buckling of the dummy cylinder can be reduced,
It is possible to stably expand the diameter of the elastomer cylindrical body.
【００５４】また、太径部内部の空間内に拡径支持体を
配置することにより、拡径支持体上への弾性エラストマ
ー筒状体の装着が容易となる。Further, by disposing the expanded diameter support in the space inside the large diameter portion, it becomes easy to mount the elastic elastomer cylindrical body on the expanded diameter support.
【００５５】更に、エラストマー筒状体の拡径に際し、
エラストマー筒状体と拡径用芯材との間の界面に、エラ
ストマー筒状体に浸透せず、かつエラストマー筒状体を
劣化させない潤滑材を供給することにより、潤滑材がエ
ラストマー筒状体に浸透して界面において不足すること
がなく、所望の潤滑効果を安定して発揮し、エラストマ
ー筒状体のスムースな拡径を行うことが出来る。また、
長期にわたり使用しても、潤滑材によりエラストマー筒
状体が劣化することがない。Further, when expanding the diameter of the elastomer cylindrical body,
By supplying a lubricant that does not penetrate into the elastomer cylinder and does not deteriorate the elastomer cylinder at the interface between the elastomer cylinder and the core member for expanding the diameter, the lubricant is applied to the elastomer cylinder. The desired lubricating effect is stably exhibited without infiltration and shortage at the interface, and the elastomer cylindrical body can be smoothly expanded in diameter. Also,
Even when used for a long period of time, the elastomeric cylinder does not deteriorate due to the lubricant.
【図１】本発明の拡径装置の一例を概略的に示す図。FIG. 1 is a diagram schematically showing an example of a diameter expanding device of the present invention.
【図２】本発明の拡径方法および装置により拡径される
弾性エラストマー筒状体を示す断面図。FIG. 2 is a cross-sectional view showing an elastic elastomer tubular body whose diameter is expanded by the diameter expanding method and apparatus of the present invention.
【図３】本発明の拡径方法および装置に使用される拡径
用芯材の他の例を示す断面図。FIG. 3 is a cross-sectional view showing another example of the core member for diameter expansion used in the method and apparatus for diameter expansion of the present invention.
【図４】本発明の拡径方法の具体的プロセスを工程順に
示す図。FIG. 4 is a view showing a specific process of the diameter expanding method of the present invention in the order of steps.
【図５】本発明の拡径方法の具体的プロセスを工程順に
示す図。FIG. 5 is a view showing a specific process of the diameter expanding method of the present invention in the order of steps.
【図６】図４および図５の拡径プロセスに使用される拡
径用芯材を示す断面図。FIG. 6 is a sectional view showing a core member for diameter expansion used in the diameter expanding process of FIGS. 4 and 5;
【図７】従来の拡径装置を概略的に示す図。FIG. 7 is a diagram schematically showing a conventional diameter expanding device.
【図８】外表面に潤滑材を内蔵した弾性材料で被覆した
拡径用芯材を示すFIG. 8 shows a core member for diameter expansion covered with an elastic material having a lubricant incorporated on an outer surface thereof.
１…拡径用芯材 １ａ…細径部 １ｂ…テーパ部 １ｃ…太径部 １ｄ…ストッパー ２…弾性エラストマー筒状体 ３…ダミー絶縁筒 ４…支持台 ５…油圧シリンダ ６，１８…ダミー絶縁筒受け ７…拡径用支持体 ８…内部半導電層 ９…絶縁層 １０…外部半導電層 １６…拡径用芯材受け １７…絶縁筒受け ３１…弾性材料 DESCRIPTION OF SYMBOLS 1 ... Core material for diameter expansion 1a ... Small diameter part 1b ... Tapered part 1c ... Large diameter part 1d ... Stopper 2 ... Elastic elastomer cylindrical body 3 ... Dummy insulating cylinder 4 ... Support base 5 ... Hydraulic cylinder 6, 18 ... Dummy insulation Cylinder receiver 7 ... Diameter expansion support 8 ... Inner semiconductive layer 9 ... Insulation layer 10 ... External semiconductive layer 16 ... Diameter expansion core receiver 17 ... Insulation cylinder receiver 31 ... Elastic material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小林 正三 東京都千代田区丸の内２丁目６番１号 古 河電気工業株式会社内 (72)発明者 羽根 良成 東京都千代田区丸の内２丁目６番１号 古 河電気工業株式会社内 (72)発明者 星野 士郎 東京都千代田区丸の内２丁目６番１号 古 河電気工業株式会社内 Ｆターム(参考） 5G355 AA03 BA02 BA12 BA15 BA20 CA06 CA09 CA26 5G375 AA02 BA26 BB56 BB60 CB07 CB19 DB32 DB42 EA17 EA20 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shozo Kobayashi 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd. (72) Inventor Yoshinari Hane 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd. (72) Inventor Shiro Hoshino 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd. F-term (reference) 5G355 AA03 BA02 BA12 BA15 BA20 CA06 CA09 CA26 5G375 AA02 BA26 BB56 BB60 CB07 CB19 DB32 DB42 EA17 EA20
Claims (9)
パー部および細径部を備えた拡径用芯材の細径部に、拡
径される弾性エラストマー筒状体および弾性ダミー筒状
体を、前記細径部がそれら筒状体内に挿入されるように
配置する工程、 前記駆動装置を作動させて前記エラストマー筒状体を細
径部、テーパー部および太径部の順に滑らせて、太径部
上に拡径して配置させる工程、および前記駆動装置を作
動させて、前記エラストマー筒状体を太径部から、前記
拡径用芯材の太径部内の空洞内に配置されている拡径支
持体上に移動させ、拡径保持する工程を具備する弾性エ
ラストマー筒状体の拡径方法。1. An elastic elastomer tubular body and an elastic dummy tubular body which are attached to a driving device, and which have a large diameter portion, a tapered portion, and a small diameter portion. Arranging the body so that the small-diameter portion is inserted into the cylindrical body; activating the driving device to slide the elastomer cylindrical body in the order of the small-diameter portion, the tapered portion, and the large-diameter portion. A step of enlarging and arranging on the large-diameter portion, and activating the driving device to dispose the elastomeric cylindrical body from the large-diameter portion into a cavity in the large-diameter portion of the core member for expanding. A method of expanding the diameter of an elastic elastomer cylindrical body, comprising a step of moving the elastic elastomer cylindrical body onto the expanded diameter support and holding the expanded diameter.
パー部および細径部からなる拡径用芯材の細径部に、拡
径される弾性エラストマー筒状体および弾性ダミー筒状
体を、前記細径部がそれら筒状体内に挿入した状態で配
置する工程、および前記駆動装置を作動させて、前記エ
ラストマー筒状体を細径部、テーパー部および太径部の
順に滑らせて、太径部の外周面に配置された拡径支持体
上に移動させ、拡径保持する工程を具備することを特徴
とする弾性エラストマー筒状体の拡径方法。2. An elastic elastomer tubular body and an elastic dummy tubular body which are attached to a driving device and are expanded in a small-diameter portion of a core member for large-diameter expansion including a large-diameter portion, a tapered portion, and a small-diameter portion. The step of arranging the small-diameter portion in a state of being inserted into the cylindrical body, and operating the driving device to slide the elastomer cylindrical body in the order of the small-diameter portion, the tapered portion, and the large-diameter portion. A method of moving the elastic elastomer cylindrical member disposed on the outer peripheral surface of the large-diameter portion to expand the diameter of the large-diameter portion and holding the expanded diameter.
マー筒状体よりも大きい硬度を有する材料により構成さ
れることを特徴とする請求項１または２に記載の弾性エ
ラストマー筒状体の拡径方法。3. The elastic elastomer cylindrical body according to claim 1, wherein the elastic dummy cylindrical body is made of a material having a higher hardness than the elastomer cylindrical body. Method.
前記エラストマー筒状体と前記拡径用芯材との間の界面
に、前記エラストマー筒状体に浸透せず、かつ前記エラ
ストマー筒状体を劣化させない低摩擦部材を介在させる
ことを特徴とする請求項１ないし３のいずれかの項に記
載の弾性エラストマー筒状体の拡径方法。4. When expanding the diameter of the elastomeric cylindrical body,
A low friction member that does not penetrate into the elastomeric cylindrical body and does not deteriorate the elastomeric cylindrical body is interposed at an interface between the elastomeric cylindrical body and the core member for diameter expansion. Item 4. The method for expanding the diameter of an elastic elastomer cylindrical body according to any one of Items 1 to 3.
孔を有し、その中に前記低摩擦部材が含まれており、前
記エラストマー筒状体の拡径に際し、前記エラストマー
筒状体と前記拡径用芯材との間の界面に、前記連続気孔
内の低摩擦部材が供給されることを特徴とする請求項４
に記載の弾性エラストマー筒状体の拡径方法。5. An outer surface of the core member for diameter expansion has minute continuous pores, and the low friction member is contained therein. The low friction member in the continuous pores is supplied to an interface between a body and the core for expanding the diameter.
4. The method for expanding the diameter of an elastic elastomer cylindrical body according to item 1.
有し、その凹凸に前記低摩擦部材が保持されていること
により、前記エラストマー筒状体の拡径に際し、前記エ
ラストマー筒状体と前記拡径用芯材との間の界面に前記
低摩擦部材が供給されることを特徴とする請求項４に記
載の弾性エラストマー筒状体の拡径方法。6. An outer diameter of the elastomeric cylinder when the diameter of the elastomeric cylindrical body is expanded, since an outer surface of the diameter-enlarging core material has minute irregularities and the low friction member is held by the irregularities. The method for expanding a diameter of an elastic elastomer cylindrical body according to claim 4, wherein the low friction member is supplied to an interface between the shape body and the core member for expanding the diameter.
部材を内蔵する弾性材料層が被覆されており、前記エラ
ストマー筒状体の拡径に際し、前記エラストマー筒状体
と前記拡径用芯材との間の界面に、前記弾性材料層に内
蔵する低摩擦部材が供給されることを特徴とする請求項
４に記載の弾性エラストマー筒状体の拡径方法。7. An outer surface of the core member for diameter expansion is coated with an elastic material layer containing the low friction member, and when expanding the cylindrical body of the elastomer, the elastomer cylindrical body and the elastomer cylindrical body are expanded. The method for expanding the diameter of an elastic elastomer cylindrical body according to claim 4, wherein a low friction member incorporated in the elastic material layer is supplied to an interface between the elastic material and the core for diameter.
ー部および細径部からなる拡径用芯材、 前記拡径用芯材を移動させるための駆動装置、 前記拡径用芯材の細径部に、拡径される弾性エラストマ
ー筒状体とともに貫通するように配置され、支持台上に
保持された弾性ダミー筒状体、および前記拡径用芯材の
太径部内の空洞内に配置された拡径支持体を具備するこ
とを特徴とする弾性エラストマー筒状体の拡径装置。8. A core member for expanding, comprising a large-diameter portion, a tapered portion, and a small-diameter portion, held on a support base, a driving device for moving the core for expanding, and the core for expanding. An elastic dummy cylindrical body, which is disposed so as to penetrate the narrow diameter portion of the material together with the elastic elastomer cylindrical body to be expanded, and is held on a support base, and a cavity in the large diameter portion of the core member for expanding the diameter. A diameter expansion device for an elastic elastomer cylindrical body, comprising: a diameter expansion support disposed in the inside.
ー部および細径部からなる拡径用芯材、 前記拡径用芯材を移動させるための駆動装置、 前記拡径用芯材の細径部に、拡径される弾性エラストマ
ー筒状体とともに貫通されて配置され、支持台上に保持
された弾性ダミー筒状体、および前記拡径用芯材の太径
部の外周部に配置された拡径支持体を具備することを特
徴とする弾性エラストマー筒状体の拡径装置。9. A core member for expanding, comprising a large-diameter portion, a tapered portion, and a small-diameter portion, which is held on a support base, a driving device for moving the core for expanding, and the core for expanding. The elastic dummy cylindrical body, which is penetrated and arranged on the small-diameter portion of the material together with the elastic elastomer cylindrical body whose diameter is expanded, and is held on a support base, and the outer peripheral portion of the large-diameter portion of the core material for diameter expansion A diameter expansion device for an elastic elastomer cylindrical body, comprising: a diameter expansion support member disposed at a position where the diameter of the elastic elastomer cylindrical member is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06524199A JP3448506B2 (en) | 1998-04-20 | 1999-03-11 | Method and apparatus for expanding diameter of elastic elastomer cylindrical body |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10936498 | 1998-04-20 | ||
| JP10-109364 | 1998-04-20 | ||
| JP10-248475 | 1998-09-02 | ||
| JP24847598 | 1998-09-02 | ||
| JP06524199A JP3448506B2 (en) | 1998-04-20 | 1999-03-11 | Method and apparatus for expanding diameter of elastic elastomer cylindrical body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000152480A true JP2000152480A (en) | 2000-05-30 |
| JP3448506B2 JP3448506B2 (en) | 2003-09-22 |
Family
ID=27298721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06524199A Expired - Lifetime JP3448506B2 (en) | 1998-04-20 | 1999-03-11 | Method and apparatus for expanding diameter of elastic elastomer cylindrical body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3448506B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002186161A (en) * | 2000-12-14 | 2002-06-28 | Merushisu:Kk | Method and apparatus for expanding diameter of elastic tube |
| JP2002307556A (en) * | 2001-04-13 | 2002-10-23 | Merushisu:Kk | Method for expanding elastic tube |
| JP2006254608A (en) * | 2005-03-11 | 2006-09-21 | Mitsubishi Cable Ind Ltd | Device for assembling cold shrink tube unit |
| JP2013074716A (en) * | 2011-09-28 | 2013-04-22 | Viscas Corp | Diameter expansion member |
| US9343893B2 (en) | 2011-05-20 | 2016-05-17 | 3M Innovative Properties Company | Device and method for field expansion |
| CN107979048A (en) * | 2017-12-22 | 2018-05-01 | 江苏华强电气设备有限公司 | A kind of insulating tube type busbar annex expansion device and its application process |
-
1999
- 1999-03-11 JP JP06524199A patent/JP3448506B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002186161A (en) * | 2000-12-14 | 2002-06-28 | Merushisu:Kk | Method and apparatus for expanding diameter of elastic tube |
| JP4592942B2 (en) * | 2000-12-14 | 2010-12-08 | 株式会社メルシス | Elastic tube diameter expansion device |
| JP2002307556A (en) * | 2001-04-13 | 2002-10-23 | Merushisu:Kk | Method for expanding elastic tube |
| JP4676637B2 (en) * | 2001-04-13 | 2011-04-27 | 株式会社メルシス | Elastic tube diameter expansion method |
| JP2006254608A (en) * | 2005-03-11 | 2006-09-21 | Mitsubishi Cable Ind Ltd | Device for assembling cold shrink tube unit |
| US9343893B2 (en) | 2011-05-20 | 2016-05-17 | 3M Innovative Properties Company | Device and method for field expansion |
| JP2013074716A (en) * | 2011-09-28 | 2013-04-22 | Viscas Corp | Diameter expansion member |
| CN107979048A (en) * | 2017-12-22 | 2018-05-01 | 江苏华强电气设备有限公司 | A kind of insulating tube type busbar annex expansion device and its application process |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3448506B2 (en) | 2003-09-22 |
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