JPS6275113A - Closing member for elastic shrinking body - Google Patents
Closing member for elastic shrinking bodyInfo
- Publication number
- JPS6275113A JPS6275113A JP21688585A JP21688585A JPS6275113A JP S6275113 A JPS6275113 A JP S6275113A JP 21688585 A JP21688585 A JP 21688585A JP 21688585 A JP21688585 A JP 21688585A JP S6275113 A JPS6275113 A JP S6275113A
- Authority
- JP
- Japan
- Prior art keywords
- tubular body
- closing member
- diameter
- elastic
- reinforcement structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、編組み補強構造にて外周が補強され、加圧流
体の給排により膨径変形し軸線方向に収縮力を生起する
ニーバッグ・タイプの弾性収縮体の閉鎖部材に関するも
のである。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a knee bag whose outer periphery is reinforced with a braided reinforcement structure and which expands and deforms in diameter by supplying and discharging pressurized fluid to generate a contraction force in the axial direction. The present invention relates to a closure member of the type elastically contractible.
（従来の技術）
加圧流体を導入することにより半径方向に膨張しつつ長
手方向に収縮するエアーバッグ・タイプの弾性収縮体は
、電動モータや液圧シリンダを用いる装置に比べ、極め
て重量が軽く、かつ運動が滑らかでコントロールが容易
であるなど、従来のアクチュエータにない数多くの優れ
た特徴を有している。このような弾性収縮体としては、
例えば第５図に示すものが特公昭５２−４０３７８号公
報により既知である。第５図において１は管状体、２は
その外周の編組み補強構造、３は両端の閉鎖部材、４は
かしめキャンプである。(Prior art) Air bag-type elastic contracting bodies that expand in the radial direction and contract in the longitudinal direction by introducing pressurized fluid are extremely light in weight compared to devices that use electric motors or hydraulic cylinders. It has many excellent features not found in conventional actuators, such as smooth movement and easy control. As such an elastic contractile body,
For example, the one shown in FIG. 5 is known from Japanese Patent Publication No. 52-40378. In FIG. 5, 1 is a tubular body, 2 is a braided reinforcement structure on its outer periphery, 3 is a closing member at both ends, and 4 is a caulking camp.
管状体１は、ゴム又は→ム状弾性材料がエアー不透過性
、可撓性の面で重宝に活用されるが均等材料、たとえば
各種のプラスチック材料で代替しても良い。The tubular body 1 is preferably made of rubber or a rubber-shaped elastic material in terms of its air impermeability and flexibility, but it may be replaced with an equivalent material such as various plastic materials.
編組み補強構造２は、管状体１の内圧光てんによる最大
膨径時においていわゆる静止角（５４°４４′）に至よ
うな編組み構造をしており、有機又は無機質高張力繊維
類、たとえば芳香族ポリアミド繊維（ケブラー：商品名
）や、極細金属ワイヤの如きフィラメントの撚りまたは
無撚りの束などが適合する。The braided reinforcing structure 2 has a braided structure that reaches a so-called resting angle (54°44') when the tubular body 1 is expanded to its maximum diameter due to internal pressure light, and is made of organic or inorganic high-tensile fibers, such as organic or inorganic high-tensile fibers. Twisted or untwisted bundles of aromatic polyamide fibers (Kevlar: trade name) and filaments such as ultrafine metal wires are suitable.
閉鎖部材３の一方は少なくとも片側で、その長さ方向に
形成した孔６を介し管状体１の内部空洞７に連通ずる接
続孔８をあけ、ここにフィッティング９を取付ける。フ
ィッティング９には図示しないが操作圧力源、たとえば
エアーコンプレッサを流量制御弁を含む管路により接続
し、管状体１の内部空洞７内に制御圧力を適用すること
により編組み補強構造２の編組み角の拡大、つまりパン
タグラフ運動によって管状体１の膨径とそれに由来した
軸線方向の収縮、すなわち閉鎖部材３の連結ピン孔間距
離の縮小がもたらされる。One of the closing members 3 is bored on at least one side with a connecting hole 8 which communicates with the internal cavity 7 of the tubular body 1 through a hole 6 formed in its length, in which a fitting 9 is mounted. The fitting 9 is connected to an operating pressure source (not shown), such as an air compressor, by a conduit containing a flow control valve, and the braided reinforcement structure 2 is braided by applying a controlled pressure within the internal cavity 7 of the tubular body 1. The enlargement of the angle, that is, the pantograph movement, brings about the expanded diameter of the tubular body 1 and the consequent contraction in the axial direction, that is, the distance between the connecting pin holes of the closure member 3.
（発明が解決しようとする問題点）
ところで上述したエアーバッグ・タイプの弾性収縮体は
、その内部空洞内への加圧流体の適用に際して全体的に
半径外方に膨張するが、両端部においては、閉鎖部材３
及びこれら部材に協働するかしめキャップ４により管状
体及び瀉組み補強構造の変形が拘束されているので急激
な径変化が生じ、閉鎖部材近傍にそれぞれ湾曲部が生起
される。(Problems to be Solved by the Invention) By the way, the above-mentioned air bag type elastic contracting body expands radially outward as a whole when pressurized fluid is applied to its internal cavity, but at both ends. , closing member 3
Since the deformation of the tubular body and the reinforcing structure is restrained by the caulking cap 4 that cooperates with these members, a sudden change in diameter occurs, and a curved portion is generated in the vicinity of the closing member.
それゆえこの湾曲部においては、編組み補強構造を構成
するそれぞれの繊維に作用する張力が異なり、一様なパ
ンタグラフ運動をおこなうことはできず、加圧流体の有
するエネルギを効率良く仕事に利用できないと言う問題
があった。加えて編組み補強構造に編みくずれが生じや
すく、第６図に模式的に示したように、管状体が閉鎖部
材近傍にてその編みくずれ部分から局所的に半径方向外
方に突出し、ために管状体が容易に破損してしまうとい
う問題があった。Therefore, in this curved part, the tension acting on each fiber that makes up the braided reinforcement structure is different, making it impossible to perform a uniform pantograph movement, and the energy of the pressurized fluid cannot be used efficiently for work. There was a problem. In addition, the braided reinforcement structure is prone to breakage, and as schematically shown in Figure 6, the tubular body locally protrudes radially outward from the breakage portion near the closure member. There was a problem that the tubular body was easily damaged.
（発明の目的）
本発明は、このような問題に鑑みてなされたものであり
、閉鎖部材近傍において急激な径変化を生じることがな
く、加圧流体の有するエネルギを効率良く利用できる弾
性収縮体のための閉鎖部材を提供することをその目的と
する。(Object of the Invention) The present invention has been made in view of these problems, and provides an elastic contractile body that does not cause sudden diameter changes in the vicinity of the closing member and can efficiently utilize the energy of pressurized fluid. Its purpose is to provide a closure member for.
（問題点を解決するための手段）
上述した問題を解決するため、本発明の弾性収縮体用閉
鎖部材は特に、少なくとも、直径が漸次増大する拡大部
分と、この拡大部分に等しい直径の円柱部分とを管状体
の軸線方向外方に向けて順次に具え、円柱部分における
編組み補強構造の中心径を、加圧流体適用前の管状体中
央部における場組み補強構造の中心径の１．１０〜１．
５０倍、好ましくは１．１０〜１．３０倍に拡大させる
。(Means for Solving the Problems) In order to solve the above-mentioned problems, the closure member for an elastic contractile body of the present invention particularly includes at least an enlarged portion whose diameter gradually increases and a cylindrical portion with a diameter equal to this enlarged portion. and are sequentially provided outward in the axial direction of the tubular body, and the center diameter of the braided reinforcing structure in the cylindrical portion is set to 1.10 of the center diameter of the braided reinforcing structure in the center of the tubular body before pressurized fluid is applied. ~1.
Magnify 50 times, preferably 1.10-1.30 times.
（作用）
この閉鎖部材によれば、その円柱部分における編組み補
強構造の中心径を、加圧流体適用前の管状体中央部にお
け名編組み補強構造より大きく、好ましくは１．１０〜
１．３０倍に拡大させたので、加圧流体を適用し膨径変
形させた時の弾性収縮体のそれぞれの閉鎖部材近傍にお
ける湾曲部の影響が低下し、そのエネルギを効率良く使
用することができる。しかも、直径が漸次増大する拡大
部分に沿って管状体および編組み補強構造を拡大させる
ので、管状体の両端開口に一閉鎖部材をそれぞれ挿着す
る際に、各閉鎖部材の軸線を実質的に同一直線上に整列
させることが容易となり、これら軸線が互いに偏位する
ことに起因する弾性収縮体の疲労寿命及び収縮力の低下
を阻止することができる。(Function) According to this closing member, the center diameter of the braided reinforcing structure in the cylindrical portion is larger than the diameter of the braided reinforcing structure in the central part of the tubular body before pressurized fluid is applied, preferably 1.10 to 1.10.
Since it is expanded by 1.30 times, the influence of the curved part near each closing member of the elastic contracting body when pressurized fluid is applied to expand and deform the diameter is reduced, and the energy can be used efficiently. can. Moreover, since the tubular body and the braided reinforcing structure are expanded along the enlarged portion where the diameter gradually increases, when one closing member is inserted into the openings at both ends of the tubular body, the axis of each closing member is substantially It becomes easy to align them on the same straight line, and it is possible to prevent a decrease in the fatigue life and contractile force of the elastic contractile body due to deviation of these axes from each other.
（実施例）
以下図面を参照して本発明弾性収縮体用閉鎖部材につい
て詳述する。(Example) The closure member for an elastic contractile body of the present invention will be described in detail below with reference to the drawings.
第１図（ａｌは、本発明閉鎖部材の一実施例を一部断面
にして示す図であり、第５図に示した部分と同様の部分
はそれらと同一符号で示す。本実施例の閉鎖部材１０は
、その半径方向に圧縮力を受けても、すなわちかしめキ
ャップのかしめ時にも大きく変形したり又は破損したり
することのない金属材料又はプラスチック材料からなり
、管状体２の軸線方向に向け、直径が掴次増大する拡大
部分１１と、この拡大部分に隣接して位置し拡大部分の
最大径にほぼ等しい外径の円柱部分１２とを具える。FIG. 1 (al) is a partial cross-sectional view of an embodiment of the closure member of the present invention, and portions similar to those shown in FIG. 5 are designated by the same reference numerals. Closing of this embodiment The member 10 is made of a metal or plastic material that will not be significantly deformed or damaged even when subjected to compressive force in the radial direction, that is, when the crimping cap is crimped, and is oriented in the axial direction of the tubular body 2. , comprising an enlarged portion 11 whose diameter gradually increases, and a cylindrical portion 12 located adjacent to the enlarged portion and having an outer diameter approximately equal to the maximum diameter of the enlarged portion.
そして拡大部分１１ば、第１図（ａ）に仮想線で示した
管状体１のこの拡大部分への挿着を容易にするため、管
状体内径に等しいか又は僅かに大きな直径の円柱状をし
た突出部１３を管状体側の端部に具える。なお突出部１
３の端縁を面取り加工することにより、管状体の装着を
一層容易にするのが良い。The enlarged portion 11 is formed into a cylindrical shape having a diameter equal to or slightly larger than the diameter of the tubular body, in order to facilitate the insertion of the tubular body 1 into this enlarged portion, which is shown by imaginary lines in FIG. 1(a). A protrusion 13 is provided at the end of the tubular body. Note that the protrusion 1
It is preferable to chamfer the edges of 3 to make the tubular body easier to install.
これに対し、円柱部分１２は、閉鎖部材１０の軸線方向
に向け順次、拡大部分１１に隣接する円柱状をした封止
部１４、第１の溝１５ａ、第１の突起１６ａ、封止部１
４にほぼ等しい直径とした掛止部１７、第２のａ１５ｂ
、そして第２の突起１６ｂとを具える。これら第１、第
２の溝１５ａ、 １６ｂは、接着剤を収容するためのも
のであり、第１の溝１５ａに収容した接着剤は、拡大部
分１１そして封止部１４に沿って第１の突起１６ａまで
延材する管状体１の開口縁部を、第２のａ１５ｂに収容
した接着材は、管状体の開口縁部を越えてその軸線方向
外方に第２の突起１６ｂまで延材する編組み補強構造２
の縁部を、それぞれ閉鎖部材１０に接着する。接着剤と
しては、たとえば閉鎖部材が軟鋼で一体に形成されてい
れば、それとゴム又はゴム状弾性体よりなる管状体との
剛固なる接着を担保する、たとえばアルファージアクリ
レート系接着剤を用いるのが良いが、それぞれの材質に
応じて適宜選択するものとする。またこれら溝を環状の
溝とすることにより、はぼ一定量の接着剤を確実に収容
できるばかりでなく、その幅を個々の閉鎖部材に対して
ほぼ一定に維持することができるので個々の製品におけ
る性能のばらつきを減少させることができる。なお上述
したように、第１、第２の突起１６ａ、 １６ｂは、そ
れぞれ管状体重および編組み補強構造２の各端面に当接
してそれらの挿着長さを規定し、かしめキャップをかし
める際に第１の突起１６ａは、編組み補強構造２をかし
めキャップとともに一段と強固に挟持し、第２の突起は
案内部材として機能する。このような構造の閉鎖部材を
管状体及び編組み補強構造に係合させた様子を第１図（
ｂｌに拡大して示す。On the other hand, the cylindrical portion 12 includes, in order in the axial direction of the closing member 10, a cylindrical sealing portion 14 adjacent to the enlarged portion 11, a first groove 15a, a first protrusion 16a, and a sealing portion 1.
The hooking part 17 has a diameter approximately equal to 4, and the second a15b
, and a second protrusion 16b. These first and second grooves 15a and 16b are for accommodating adhesive, and the adhesive accommodated in the first groove 15a is distributed along the enlarged portion 11 and the sealing portion 14 into the first groove. The adhesive material stored in the second a 15b at the opening edge of the tubular body 1 that extends to the protrusion 16a extends outward in the axial direction beyond the opening edge of the tubular body to the second protrusion 16b. Braided reinforcement structure 2
The edges of each are glued to the closure member 10. As the adhesive, for example, if the closing member is integrally formed of mild steel, an alpha diacrylate adhesive, for example, may be used, which ensures firm adhesion between the closing member and the tubular body made of rubber or rubber-like elastic material. However, it should be selected appropriately depending on the material. Furthermore, by making these grooves circular, not only can a certain amount of adhesive be reliably accommodated, but also the width can be maintained approximately constant for each closure member, allowing individual products to be easily accommodated. performance variations can be reduced. As described above, the first and second protrusions 16a and 16b respectively abut against each end surface of the tubular weight and the braided reinforcing structure 2 to define their insertion lengths, and when the crimping cap is crimped. The first protrusion 16a more firmly holds the braided reinforcing structure 2 together with the caulking cap, and the second protrusion functions as a guide member. Figure 1 (
Shown enlarged in bl.
なお符号１８は、閉鎖部材１０を固定壁などに連結する
ための結合手段としての一例のねじ部である。Note that the reference numeral 18 is a threaded portion as an example of a coupling means for coupling the closing member 10 to a fixed wall or the like.
このように本実施例では、拡大部分１１の最大径に実質
的に等しい円柱部分に溝や突起を設け、管状体及びその
外周を覆う編組み補強構造が閉鎖部材から抜−げにくい
構成としたが、これに限定されるものではなく円筒状外
面を有する円柱とし・その外面全体若しくは一部に接着
剤を塗布して管状体及び編組み補強構造を円柱部分に接
着し、かしめキャップにて合着させても良い。In this way, in this embodiment, grooves and protrusions are provided in the cylindrical portion substantially equal to the maximum diameter of the enlarged portion 11, so that the tubular body and the braided reinforcement structure covering its outer periphery are difficult to pull out from the closure member. However, the present invention is not limited to this, and it is possible to use a cylinder with a cylindrical outer surface, apply adhesive to the entire or part of the outer surface, adhere the tubular body and braided reinforcement structure to the cylinder part, and attach it with a caulking cap. You can wear it.
このような閉鎖部材の円柱部分の直径を種々変更し、管
状体中央部における編組み補強構造の中心径に対する、
円柱部分における編組み補強構造の中心径の比、つまり
拡大比にと、加圧流体を適用した場合に従来の弾性収縮
体に生起される収縮力に対する、本発明閉鎖部材を用い
た弾性収縮体に生起される収縮力の比、つまり収縮力比
との関係を実験により求めた。この結果の一例を第２図
に示す。この時使用した弾性収縮体は、管状体内径が１
２φ、外形が１４φの合成ゴムよりなり、一方線組み補
強構造はポリエステル系繊維の撚糸を編組んだものであ
り、弾性収縮体の収縮率をパラメータとし、その値を０
％、５％、１０％、１５％、２０％と種々変更して行っ
た。The diameter of the cylindrical portion of such a closing member is varied, and the diameter of the braided reinforcement structure at the center of the tubular body is varied.
The ratio of the central diameter of the braided reinforcement structure in the cylindrical part, that is, the expansion ratio, and the elastic contractile body using the closure member of the present invention with respect to the contractile force generated in the conventional elastic contractile body when pressurized fluid is applied. The relationship between the contraction force ratio, that is, the contraction force ratio, was determined through experiments. An example of this result is shown in FIG. The elastic contraction body used at this time had a tubular inner diameter of 1
It is made of synthetic rubber with a diameter of 2φ and an external diameter of 14φ, while the wire reinforcement structure is made by braiding twisted yarns of polyester fibers.
%, 5%, 10%, 15%, and 20%.
この図により明らかなように、拡大比Ｋを１．１０〜１
．５、より好ましくは１．ＩＱ−１，３０の範囲に選択
することにより、収縮力を向上させることができること
がわかる。特に、弾性収縮体の収縮率を２０％とした時
に、拡大比に＝１．３でその収縮力は従来の閉鎖部材を
用いた弾性収縮体の１．５倍以上となり、大巾に収縮力
が増大することがわかる。なお、拡大比Ｋを１．３０よ
り大きく設定しても同様に収縮力を増大させることがで
きるが、その比が大きくなると、管状体及び編組み補強
構造を閉鎖部材に挿着する作業が行ないにくくなるため
、拡大比は上述した１、１０〜１．３０の範囲で選択す
るのが有利となる。As is clear from this figure, the enlargement ratio K is 1.10 to 1.
．． 5, more preferably 1. It can be seen that by selecting the IQ in the range of -1.30, the contractile force can be improved. In particular, when the contraction rate of the elastic contraction body is 20%, the contraction force is more than 1.5 times that of the elastic contraction body using a conventional closing member when the expansion ratio is 1.3. It can be seen that the amount increases. Note that the contractile force can be similarly increased by setting the expansion ratio K to be larger than 1.30, but as the ratio becomes larger, the work of inserting the tubular body and the braided reinforcement structure into the closure member becomes difficult. Therefore, it is advantageous to select the enlargement ratio within the range of 1.10 to 1.30 as described above.
第３．第４図は、それぞれ本発明の他の実施例を示す図
である。Third. FIG. 4 is a diagram showing other embodiments of the present invention.
第３図に示した実施例は、第１図（ａ）に示した実施例
と同様な構造をしており、第２の環状突起１６ｂの端部
をその軸線方向外方に延在させて支持部１８を形成し、
この支持部を利用して支柱、固定壁などに閉鎖部材を固
着できるよう構成したものである。The embodiment shown in FIG. 3 has a similar structure to the embodiment shown in FIG. 1(a), with the end of the second annular projection 16b extending outward in the axial direction. forming a support portion 18;
The structure is such that the closing member can be fixed to a support column, a fixed wall, etc. using this support part.
第４図に示した実施例は、管状体１の内部空洞７への加
圧流体の給排を可能とした閉鎖部材であり、内部空洞７
に連通する穴６、そしてこの穴６に開口しフィッティン
グ９を取付けることのできる接続孔８を具える。また符
号１９は閉鎖部材に設けた連結ピン孔である。The embodiment shown in FIG.
It has a hole 6 that communicates with the hole 6, and a connection hole 8 that opens into the hole 6 and allows a fitting 9 to be attached thereto. Further, reference numeral 19 is a connecting pin hole provided in the closing member.
なお、それぞれ示した本発明閉鎖部材は、専用の装着具
により又は手作業にて管状体及び編組み補強構造に挿着
される。It should be noted that each of the illustrated closure members of the present invention is inserted into the tubular body and the braided reinforcing structure using a dedicated attachment tool or manually.
（発明の効果）
以上詳述したように本発明閉鎖部材によれば、編組み補
強構造にて外周が覆われた管状体の両端の開口部近傍の
径を、管状体中央部における編組み補強構造の中心径よ
り大きく保持して封止する構成とすることにより、加圧
流体を適用した際の閉鎖部材近傍における急激な径変化
を阻止することができ、この径変化に起因する加圧流体
の有するエネルギ損失を低減させ、そのエネルギを効率
良く仕事に変換することができる。しかも拡大部分は、
一端が管状内径にほぼ等しくその直径が漸次増大する形
状としたので、管状体の閉鎖部材への挿着が容易である
ばかりか、管状体の両端に挿着したそれぞれの閉鎖部材
の軸線が互いに偏位することがないので耐久性に優れた
弾性収縮体を得る。(Effects of the Invention) As detailed above, according to the closing member of the present invention, the diameter near the openings at both ends of the tubular body whose outer periphery is covered with the braided reinforcement structure is reduced by the braided reinforcement at the center of the tubular body. By holding the structure larger than the center diameter and sealing it, it is possible to prevent a sudden change in diameter near the closing member when pressurized fluid is applied, and the pressurized fluid caused by this diameter change can be prevented. It is possible to reduce the energy loss of the system and efficiently convert that energy into work. Moreover, the enlarged part is
Since one end is approximately equal to the inner diameter of the tubular body and its diameter gradually increases, it is not only easy to insert the tubular body into the closing member, but also the axes of the closing members inserted at both ends of the tubular body are aligned with each other. To obtain an elastic contractile body having excellent durability because it does not deflect.
第１図（ａ）は、本発明閉鎖部材を一部断面にして示す
正面図、
第１図（ｂ）は、第１図（ａｌに示す閉鎖部材を、編組
み補強構造にて外周が覆われた管状体の開口部に挿着し
た様子を示す断面図、
第２図は、本発明閉鎖部材を用いた弾性収縮体の性能曲
線を示す図、
第３、第４図は、本発明の他の実施例をそれぞれ示す一
部断面正面図及び外観を示す図、第５、第６図は、従来
のエアーバンクタイプの弾性収縮体を一部断面にして示
す図及び加圧流体を適用した時の図である。
１・・・管状体 ２・・・編組み補強構造３
．１０・・・閉鎖部材 ４・・・かしめキャンプ７
・・・内部空洞 ８・・・接続孔１１・・・拡
大部分 １２・・・円柱部分１３・・・突出部
分 Ｉ４・・・封止部１５ａ、 １５ｂ・・−
溝 １６ａ、 １６ｂ−突起１７・・・係止部
１８・・・ねじ部１９・・・連結ピン孔
特許出願人 株式会社ブリデストン
代理人弁理士 杉 村 暁 秀
同 弁理士 杉 村 興 作第１
図
Ｃａ）
第３図
第４図FIG. 1(a) is a partially sectional front view of the closure member of the present invention, and FIG. 1(b) is a front view of the closure member shown in FIG. FIG. 2 is a diagram showing the performance curve of an elastic contracting body using the closure member of the present invention, and FIGS. FIGS. 5 and 6 are partially sectional front views and exterior views showing other embodiments, respectively; FIGS. 5 and 6 are partial sectional views of conventional air bank type elastic contracting bodies; 1... Tubular body 2... Braided reinforcement structure 3
．． 10...Closing member 4...Caulking camp 7
...Inner cavity 8...Connection hole 11...Enlarged portion 12...Cylindrical portion 13...Protruding portion I4...Sealing portion 15a, 15b...-
Grooves 16a, 16b - protrusions 17...locking portions 18...threaded portions 19...connecting pin holes Patent applicant: Brideston Co., Ltd., patent attorney Akatsuki Sugimura, patent attorney Akira Sugimura, author No. 1
Figure Ca) Figure 3 Figure 4
Claims (1)
たゴム又はゴム状弾性材料の管状体の開口部に挿着され
る弾性収縮体用閉鎖部材であって、管状体の軸線方向外
方に向け順次に、直径が漸次増大する拡大部分と、この
拡大部分に等しい直径の円柱部分とを少なくとも具え、
円柱部分における編組み補強構造の中心径を加圧流体適
用前の管状体中央部における編組補強構造の中心径の１
．１０〜１．５０倍に拡大させることを特徴とする弾性
収縮体用閉鎖部材。 ２、前記拡大部分を５°〜４０°のテーパ状に形成した
特許請求の範囲第１項に記載の弾性収縮体用閉鎖部材。[Scope of Claims] 1. A closing member for an elastic contractile body inserted into an opening of a tubular body made of rubber or rubber-like elastic material whose outer periphery is reinforced with a braided reinforcement structure of high-tensile fibers, , comprising at least an enlarged portion whose diameter gradually increases in the axially outward direction of the tubular body, and a cylindrical portion having a diameter equal to the enlarged portion,
The center diameter of the braided reinforcement structure in the cylindrical part is set to 1 of the center diameter of the braided reinforcement structure in the center of the tubular body before applying the pressurized fluid.
．． A closing member for an elastic contractile body, which is characterized by being expanded by 10 to 1.50 times. 2. The closing member for an elastic contractile body according to claim 1, wherein the enlarged portion is formed into a tapered shape of 5° to 40°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21688585A JPH0680322B2 (en) | 1985-09-30 | 1985-09-30 | Closure member for elastic contraction body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21688585A JPH0680322B2 (en) | 1985-09-30 | 1985-09-30 | Closure member for elastic contraction body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6275113A true JPS6275113A (en) | 1987-04-07 |
| JPH0680322B2 JPH0680322B2 (en) | 1994-10-12 |
Family
ID=16695433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21688585A Expired - Lifetime JPH0680322B2 (en) | 1985-09-30 | 1985-09-30 | Closure member for elastic contraction body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0680322B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017010304A1 (en) * | 2015-07-14 | 2017-01-19 | 株式会社ブリヂストン | Hydraulic actuator |
-
1985
- 1985-09-30 JP JP21688585A patent/JPH0680322B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017010304A1 (en) * | 2015-07-14 | 2017-01-19 | 株式会社ブリヂストン | Hydraulic actuator |
| CN107850095A (en) * | 2015-07-14 | 2018-03-27 | 株式会社普利司通 | Fluid hydraulic actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0680322B2 (en) | 1994-10-12 |
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|---|---|---|---|
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