JPS6256692A - Closing member for elastic shrinking body - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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たゴム又
はゴム状弾性材料の管状体の両端開口端部をそれぞれ閉
止する弾性収縮体用の閉鎖部材に関するものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to an elastic contractile body that closes both open ends of a tubular body made of rubber or rubber-like elastic material whose outer periphery is reinforced with a braided reinforcement structure. The present invention relates to a closure member for.

（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４図に示すものが特公昭５２−４０１７８号公
報により既知である。第４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
かしめキャップである０ 管状体１は、ゴム又はゴ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。(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. 4 is known from Japanese Patent Publication No. 52-40178. In FIG. 4, 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 crimped cap. Although it is useful in terms of flexibility, it may be replaced with equivalent materials 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′）に至る
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 rest angle (54°44') when the tubular body 1 expands 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８の一方は少なくとも片側で、ニップル５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、
たとえばエアーバッグレツ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
まりバンク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８の連結ピ
ン孔間距離の縮小かもたらさｎる〇（発明が解決しよう
とする問題点） ところで弾性収縮体に適用される加圧流体の圧力をＰと
すると、この時、弾性収縮体に生起される収縮力Ｆは、 ただし　Ｄ＝弾性収縮体の直径 θｏ：編組み補強構造の編組み角 ｔ＝収縮率 で表わされ、この力が閉鎖部材と管状体及び編組み補強
構造とをそれらの軸線方向に相互に分離させるべく作用
する。この力は、加圧された流体を運輸する通常のホー
スに作用する力より１０倍以上も大きく、それゆえ管状
体及び綱組み補強構造が挿着される閉鎖部材の円筒部分
長さを長くした、大きな引抜力にも耐え得るような閉鎖
部材が必要とされた。このため両開鎖部材間の管状体及
び編組み補強構造の長さ、すなわち弾性収縮体の有効長
さに対する閉鎖部材の長さが長くなり、連結ピン孔間に
所望の距離の縮小を与えようとすれば、弾性収縮体の長
さを長くせざるを得す、その適用個所の空間寸法が限定
されてしまうと言う問題があった〇 一方、かしめキャップを一段と強固にかしめることによ
り、管状体及び綱組み補強構造を閉鎖部材に強く合着さ
せ、その円筒部分長さを短くすることも考えられるが、
編組み補強構造の繊維がゴム又はゴム状弾性材料よりな
る管状体にくい込み、繰返し管状体に加圧流体を供給す
るとそこから管状体が破損すると言う問題が生ずる〇 （発明の目的） 本発明は上述した問題に鑑みてなされたものであり、管
状体及び編組み補強構造が挿着される閉鎖部材の部分の
長さを短かくシ、弾性収縮体の有効長さを長くすること
のできる弾性収縮体用閉鎖部材を提供することを目的と
する。One of the closing members 8 is bored on at least one side with a connecting hole 8 which communicates with the internal cavity 7 of the tubular body 1 via a hole 6 formed in the lengthwise direction of the nipple 5, in which a fitting 9 is mounted. Although not shown in the fitting 9, there is an operating pressure source,
For example, by connecting an air bag dresser by a conduit containing a flow control valve and applying a controlled pressure within the internal cavity 7 of the tubular body 1, the braid angle of the braided reinforcement structure 2 is enlarged, that is, by bank graph movement, the tubular body The expanded diameter of the body 1 and the resulting contraction in the axial direction, that is, the distance between the connecting pin holes of the closing member 8, are reduced. If the pressure of the pressurized fluid is P, then the contraction force F generated in the elastic contraction body is expressed as follows: D = diameter of the elastic contraction body θo: braid angle t of the braided reinforcement structure = contraction rate , this force acts to separate the closure member, the tubular body and the braided reinforcing structure from each other in their axial direction. This force is more than 10 times greater than the force acting on a typical hose transporting pressurized fluids and therefore increases the length of the cylindrical portion of the closure member into which the tubular body and the braided reinforcement structure are inserted. , a closure member was needed that could withstand large pull-out forces. For this reason, the length of the tubular body and the braided reinforcement structure between both open chain members, that is, the length of the closing member relative to the effective length of the elastic contracting body, is increased, in order to provide the desired reduction in the distance between the connecting pin holes. However, by crimping the crimping cap more firmly, the length of the elastic contracting body had to be increased, and the spatial dimensions of the area to which it was applied were limited. It is also possible to strongly connect the body and the rope reinforcement structure to the closure member and shorten the length of the cylindrical part.
The problem arises that the fibers of the braided reinforcement structure become embedded in the tubular body made of rubber or rubber-like elastic material, and that the tubular body is damaged when pressurized fluid is repeatedly supplied to the tubular body. This was done in view of the above-mentioned problems, and it is possible to shorten the length of the portion of the closure member into which the tubular body and the braided reinforcement structure are inserted, and to increase the effective length of the elastic contractile body. It is an object of the present invention to provide a closure member for a retractable body.

（問題点を解決するための手段） この目的を達成するため、本発明の弾性収縮体用閉鎖部
材は、とくに管状体の開口端部に挿着される円筒状外面
をした封止部と、この封止部に隣接し管状体の開口端部
をその軸線方向外方に延在する−組み補強構造の開口端
部に挿着される円筒状外面をした係止部とを具え、その
封止部の係止部側端部の外周に、管状体の開口縁部を固
着する接着剤を収容することのできる第１の環状溝を設
け、一方、係止部のこの環状溝に５１接する一端及びそ
の他端の外周に第１及び第２の環状突起を設けるととも
に、これら突起により区画され第２の環状突起に隣接す
る係止部の外周に、綱組み補強構造の開口縁部を固着す
る接着剤を収容することのできる第２の環状溝を設けて
なる。(Means for solving the problem) In order to achieve this object, the closure member for an elastic contractile body of the present invention includes, in particular, a sealing part having a cylindrical outer surface that is inserted into the open end of the tubular body; a locking portion adjacent to the sealing portion and extending axially outward from the open end of the tubular body and having a cylindrical outer surface that is inserted into the open end of the assembled reinforcing structure; A first annular groove capable of accommodating an adhesive for fixing the opening edge of the tubular body is provided on the outer periphery of the end of the locking part on the side of the locking part, and 51 is in contact with this annular groove of the locking part. First and second annular protrusions are provided on the outer periphery of one end and the other end, and the opening edge of the rope reinforcement structure is fixed to the outer periphery of a locking part that is partitioned by these protrusions and adjacent to the second annular protrusion. A second annular groove is provided which can accommodate adhesive.

（作用） この弾性収縮体用閉鎖部材によれば、第１、第２の環状
溝に予しめ接着剤を塗布し、この閉鎖部材を管状体及び
この管状体の外周を被覆する編組み補強構造の開口端部
に挿着すると、管状体及び編組み補強構造のそれぞれの
開口縁部が接着剤にて閉鎖部材に固着される。このため
、管状体及び編組み補強構造は、それら縁部にてあたか
も閉鎖部材に掛止されたようになり、管状体の軸線方向
に作用する引抜力に対して十分対抗することができる。(Function) According to this closure member for an elastic contractile body, an adhesive is applied to the first and second annular grooves in advance, and the closure member has a braided reinforcement structure that covers the tubular body and the outer periphery of the tubular body. When inserted into the open end of the tube, the respective open edges of the tubular body and the braided reinforcing structure are secured to the closure member with adhesive. Therefore, the tubular body and the braided reinforcement structure appear to be hooked to the closing member at their edges, and can sufficiently resist the pulling force acting in the axial direction of the tubular body.

Ｑて閉鎖部材の封止部及び係止部に挿着した管状体及び
編組み補強構造を、かしめキャップによりかしめること
により一層強固に閉鎖部材に取付けることができるから
、閉鎖部材の長さを短くすることができる。By caulking the tubular body and the braided reinforcing structure inserted into the sealing part and the locking part of the closing member with the crimping cap, the length of the closing member can be reduced. Can be shortened.

また接着剤は、第１、第２の環状溝に塗布すれば良いの
で、円筒状外面をした封止部及び係止部に接着剤を塗布
する場合に比べて容易となるばかりか、また管状体及び
纏組み補強構造の挿着作業に際しても接着剤がはがされ
ることもないので、確実、かつ均一に閉鎖部材を挿着す
ることができる０ （実施例） 以下図面を参照して本発明閉鎖部材について説明する◇ 第１図（ａ）は、本発明の一実施例を一部断面にして示
す図であり、第４図に示した部分と同様の部分はそれら
と同一の符号で示す。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破損することのない
金属材料又は合成樹脂材料からなり、管状体の開口端部
に挿着される、実質的に円筒状外面とした封止部１１と
、管状体外周を被覆する編組み補強構造の開口端部に挿
着される、実質的に円筒状外面としだ係止部１２とを具
える。In addition, since the adhesive only needs to be applied to the first and second annular grooves, it is not only easier to apply the adhesive to the sealing part and the locking part which have a cylindrical outer surface, but also to the tubular outer surface. Since the adhesive is not peeled off when inserting the body and the reinforcing structure, the closing member can be inserted reliably and uniformly. Describing the invention closing member ◇ Fig. 1(a) is a partial cross-sectional view of an embodiment of the present invention, and parts similar to those shown in Fig. 4 are designated by the same reference numerals. show. The closing member 10 of this embodiment is made of a metal material or a synthetic resin 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 A sealing part 11 having a substantially cylindrical outer surface is inserted into the end, and a substantially cylindrical outer surface is inserted into the open end of the braided reinforcing structure covering the outer periphery of the tubular body. A locking portion 12 is provided.

封止部１１は、第１図（ａ）に仮想線で示した管状体１
の封止部への挿着を容易にするため、管状体側の端面を
面取加工するのが良く、これに対し、係止部１２側の封
止部１１の端部には、その周方向に第１の環状溝１８を
形成する。この環状溝１３は、封止部１１に挿着された
管状体］の開口縁部を閉鎖部材に固着する接着剤、たと
えば閉鎖部材が軟鋼であれば、それとゴム又はゴム弾性
体よりなる管状体との剛固なる接着を担保するアルファ
ーシア／アクリレート系接着剤を収容する溝であり、環
状の溝とすることにより、はぼ−・定量の接着剤を確実
に塗布することができる。しかも常に実質的に溝巾に等
しい接着部位を提供することができるので、管状体１と
封止部１１との結合状態が一定に維持さ第１ることにな
り、個々の製品における性能のばらつきがなくなる。The sealing part 11 is connected to the tubular body 1 shown by imaginary lines in FIG. 1(a).
In order to facilitate insertion into the sealing part, it is preferable to chamfer the end surface on the tubular body side. A first annular groove 18 is formed in the first annular groove 18 . This annular groove 13 is formed by using an adhesive that fixes the opening edge of the tubular body inserted into the sealing part 11 to the closing member, for example, if the closing member is mild steel, and a tubular body made of rubber or a rubber elastic body. This is a groove that accommodates an alpha shear/acrylate adhesive that ensures firm adhesion to the material, and by making it an annular groove, it is possible to reliably apply a small amount of adhesive. Moreover, since it is possible to always provide a bonding area that is substantially equal to the groove width, the bonding state between the tubular body 1 and the sealing part 11 is maintained constant, which results in variations in performance between individual products. disappears.

これに対し係止部１２は、その両端部に第１及び第２の
環状突起１４．１５を具える。第１の環状突起１４は、
第１の環状溝１３に隣接して位置し、管状体１を封止部
１１に挿着した際に管状体の端面に当接し、その挿着長
さを規定する。同様に第２の環状突起１５は、管状体１
の開口端部をその軸線方向外方に延在する纏組み補強構
造２の開口端部の端面に当接してその挿着長さを規定す
るとともに、かしめキャップをかしめる際の案内部材と
しても機能する。On the other hand, the locking part 12 is provided with first and second annular projections 14,15 at both ends thereof. The first annular projection 14 is
It is located adjacent to the first annular groove 13 and comes into contact with the end surface of the tubular body when the tubular body 1 is inserted into the sealing part 11, thereby defining the insertion length. Similarly, the second annular protrusion 15
The opening end of the reinforcing structure 2 is brought into contact with the end surface of the opening end of the bundled reinforcing structure 2 extending outward in the axial direction to define its insertion length, and also serves as a guide member when caulking the caulking cap. Function.

また、これら第１、第２の環状突起により区画される係
止部に、第２の環状突起１５に隣接させて第２の環状溝
１６を形成する。この環状溝１６は、第１の環状突起１
４を越えてその軸線方向外方に延在する編組み補強構造
２の開口縁部を閉鎖部材に固着する接着剤を収容するも
のであり、第１の環状溝１３と同様に、はぼ一定態の接
着剤を確実に塗布することができ、しかもその溝巾に等
しい接着部位を提供することができるので、編組み補強
構造２と係止部１２との結合状態を一定に維持し、個々
の製品におけるばらつきを低減させるＯ なお、符号１７は、閉鎖部材１０を固定壁又は弾性収縮
体により駆動部材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。Further, a second annular groove 16 is formed adjacent to the second annular protrusion 15 in the locking portion defined by the first and second annular protrusions. This annular groove 16 is connected to the first annular protrusion 1
4 and which, like the first annular groove 13, contains an adhesive for fixing the opening edge of the braided reinforcing structure 2 to the closure member, extending axially outwardly beyond the first annular groove 13. Since it is possible to reliably apply the adhesive of the same shape and provide an adhesive area equal to the width of the groove, the bonding state between the braided reinforcement structure 2 and the locking part 12 can be maintained constant, and the adhesive can be applied individually. In addition, the reference numeral 17 is a threaded portion as an example of a coupling means for connecting the closing member 10 to the driving member by means of a fixed wall or an elastic contraction body.

このように構成した閉鎖部材を管状体及び編組補強構造
に係合させた様子を第１図（ｂ）に拡大して示す。すな
わち管状体１及びこの管状体の外周を被覆する編組み補
強構造２の各開口端部を閉鎖部材１０の封止部１１及び
係止部１２に、専用の挿着具又は手作業にてそれぞれ挿
着する。一方第１及び第２の環状溝１３，１６には予じ
め接着剤が塗布されているので各開口端部の開口縁部は
、閉止部材に強固に接合される０そして好ましくは、係
止部１２に設けた第１及び第２の環状突起１８゜１４と
の間の円筒状外周面上に挿着された編組み補強構造に更
に接着剤を含浸させた後、その外方に挿着したかしめキ
ャップ４をかしめれば良い０なおかしめキャップ１４は
、まず儲組み補強構造により外周が被覆された管状体の
開口端部に対応する部分をかしめ、次いで層組み補強構
造に関連した部分、すなわち、係止部に対応する部分を
かしめることにより、管状体の膨径時にその運動に対応
して大きな引張力刊期控る編組み補強構造を一層確実に
閉鎖部材に合着させることができる。FIG. 1(b) shows an enlarged view of the closure member constructed in this way engaged with the tubular body and the braided reinforcing structure. That is, each open end of the tubular body 1 and the braided reinforcing structure 2 covering the outer periphery of the tubular body is inserted into the sealing part 11 and the locking part 12 of the closing member 10 using a dedicated insertion tool or manually. Insert. On the other hand, since adhesive is applied to the first and second annular grooves 13 and 16 in advance, the opening edge of each opening end is firmly joined to the closing member, and preferably, the opening edge is firmly joined to the closing member. The braided reinforcement structure inserted on the cylindrical outer peripheral surface between the first and second annular protrusions 18 and 14 provided on the part 12 is further impregnated with adhesive, and then inserted on the outside thereof. To create the crimped cap 14, which can be made by crimping the crimped cap 4, first swage the part corresponding to the open end of the tubular body whose outer periphery is covered with the layered reinforcing structure, and then swage the part related to the layered reinforcing structure. That is, by caulking the portion corresponding to the locking portion, the braided reinforcement structure, which generates a large tensile force in response to the movement of the tubular body when its diameter expands, can be more securely joined to the closing member. can.

更に本発明の他の好適な実施例では、封止部の直径をゴ
ム又はゴム状弾性体よりなる管状体の内径に等しいかわ
ずかに大きなりＩＩｘとしてその長さを（０，５〜０．
７）ＸＤＯと、第１の環状溝の深さを０．５〜１．ＯＭ
ｓその長さを１〜２Ｉ！Ｉｌｌと、長さ２〜５ｍとした
第１の環状突起は０．５〜２１１を突出させ、長さ１〜
３１１３にとした第２の環状溝の深さを０．５〜〜１，
５１０１と、そして係止部の第１の環状突起及び第２の
環状溝との間に位置する円筒状の外周部の長さを（０，
Ｂ　〜０．ｅ　）　ｘＤｍと、また長さ２謁以上とした
第２の環状突起は０．５〜ｚｍ突出させる〇たとえば常
用圧力５噌／ｃｍ”の内径１４φ、１８．５φの各弾性
収縮体に対して、上述した実施例の閉鎖部材を適用した
ところ、管状体を破壊するに必要な圧力、すなわち破壊
圧力は、それぞれ３５に９／Ｃｒ！Ｌ”、ａ　ｏ　ｋｇ
／ｃｍ”となり、安全率Ｓｆ≧６〜７となった０ちなみ
にこの値は、一般のホースに課せられた安全率Ｓｆ≧３
〜５に比しても十分大きな値であり、それゆえこの閉鎖
部材を適用すれば耐久性が向上することが明らかであり
、事実加圧流体の給排を１００万回以上繰返しても何ら
問題を生じることはなかった。更に一般のホース用口金
では、閉鎖部材と管状体との引抜けを防止するため、そ
の長さが４０〜５０ｆｉそれゆえ両端では８０〜１００
１ｆｉ必要とされるのに対し、本実施例閉鎖部材では約
１５１１１１、両端では３０ｆｔｍ程度で良く、編組み
補強構造を含む管状体の有効長さを大きくとることがで
きる。Furthermore, in another preferred embodiment of the present invention, the diameter of the sealing portion is equal to or slightly larger than the inner diameter of the tubular body made of rubber or rubber-like elastic material IIx, and the length thereof is (0.5 to 0.
7) XDO and the depth of the first annular groove are set to 0.5 to 1. OM
s Its length is 1~2I! Ill and the first annular projection having a length of 2 to 5 m protrude from 0.5 to 211 m, and have a length of 1 to 5 m.
3113, the depth of the second annular groove is 0.5 to 1,
5101, and the length of the cylindrical outer circumference located between the first annular protrusion and the second annular groove of the locking part is (0,
B ~0. e) xDm and the second annular protrusion with a length of 2 or more are made to protrude by 0.5 to zm. For example, for each elastic contractile body with an inner diameter of 14φ and 18.5φ with a normal pressure of 5 oz/cm" , when the closing member of the above-mentioned embodiment is applied, the pressure required to destroy the tubular body, that is, the destruction pressure, is 35 to 9/Cr!L", ao kg, respectively.
/cm”, and the safety factor Sf≧6-7.0 By the way, this value is the safety factor Sf≧3 imposed on general hoses.
This is a sufficiently large value compared to ~5, so it is clear that the durability will be improved if this closure member is used, and in fact, there will be no problem even if the pressurized fluid is supplied and discharged more than 1 million times. This did not occur. Furthermore, in order to prevent the closure member and the tubular body from being pulled out, a general hose cap has a length of 40 to 50 fi, and therefore a length of 80 to 100 fi at both ends.
1fi, whereas in the present embodiment the closure member requires about 151,111 ftm, or about 30 ftm at both ends, and the effective length of the tubular body including the braided reinforcement structure can be increased.

第２、第３図は、それぞれ本発明の他の実施例を示す図
である。2 and 3 are diagrams showing other embodiments of the present invention, respectively.

第２図は、第１図（ａ）に示した実施例と同様な構造を
しており、係止部１２のｇＳ２の環状突起１５側の端部
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。FIG. 2 shows a structure similar to that of the embodiment shown in FIG. 1(a), in which the end of gS2 of the locking part 12 on the annular protrusion 15 side extends 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３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本発明に係る閉鎖部材であり
、内部空洞７に連通する穴６、そしてこの六〇に開口し
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◇また付号１９は閉鎖部材に設けた連結ビン孔であ
る。The embodiment shown in FIG. 3 is a closure member according to the present invention that allows pressurized fluid to be supplied and discharged to an internal cavity 7 of a tubular body 1, and includes a hole 6 communicating with the internal cavity 7 and a It has a connecting hole 8 which opens at 〇 and allows fitting 9 to be attached. ◇ Also, number 19 is a connecting hole provided in the closing member.

なお第２、第３図に示したそれぞれの実施例も第１図に
示した実施例と同様にして管状体及び繻組み補強構造に
挿着すれば良く、シかもそれら作用は同様であるのでこ
こでは省略する。It should be noted that each of the embodiments shown in FIGS. 2 and 3 can be inserted into the tubular body and the satin reinforcing structure in the same manner as the embodiment shown in FIG. 1, and their functions are the same. It is omitted here.

（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、ゴム又は
ゴム状弾性体よりなる管状体の開口端部を、円筒形状を
した外面を有する封止部に挿着し、その縁部を接着剤に
て固着し、一方、管状体の外周を被覆する綱組み補強構
造の開口端部を、係止部に挿着し、その縁部を接着剤に
て固着することにより、管状体を損傷することなく閉鎖
部材に固着しまた管状体の膨径時に大きな外力を受ける
繻組み補強構造を傷つけることなく強固に固着すること
ができるので、耐久性に優れた弾性収縮体を得ることが
できる。しかも通常のホース口金や他の構造の閉鎖部材
に比して一段と強固に固着することができるので、閉鎖
部材それ自身の長さの短い、言い換えれば有効長さの長
い弾性収縮体を得るなどの効果がある。(Effects of the Invention) As detailed above, according to the closing member of the present invention, the open end of the tubular body made of rubber or a rubber-like elastic body is inserted into the sealing part having a cylindrical outer surface, By fixing the edge with adhesive, and on the other hand, inserting the open end of the rope reinforcing structure covering the outer periphery of the tubular body into the locking part, and fixing the edge with adhesive. The elastic contracting body has excellent durability because it can be firmly fixed to the closing member without damaging the tubular body, and it can be firmly fixed without damaging the satin reinforcement structure that receives large external forces when the tubular body expands. Obtainable. Moreover, it can be fixed more firmly than a normal hose cap or other structure of the closing member, so the length of the closing member itself is short, in other words, it is possible to obtain an elastic contractile body with a long effective length. effective.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図（に）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（勾に示す閉鎖部材を管状体及
び編組み補強構造に挿着した様子を示す断面図、第２、
第３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４図は、エアーバッグ・
タイプの弾性収縮体を一部断面にして示す正面図である
。 １・・・管状体　　　　　　２・・・編組み補強構造８
．１０・・閉鎖部材　　　４・・・かしめキャップ７・
・・内部空洞　　　　　８・・・接続孔１１・・・封止
部　　　　　　１２・・・係止部１８　、１６・・・環
状溝　　　　１４　、１５・・・環状突起１７・・・ね
じ部　　　　　　１８・・・支持部１９・・・連結ビン
孔 特許出願人　　株式会社ブリデストン 第１図 （ａ） 第３図FIG. 1 (b) is a partially sectional front view of the closure member of the present invention, and FIG. 1 (b) is a front view showing the closure member shown in FIG. 2nd cross-sectional view showing how
FIG. 3 is a partially sectional front view and external view showing other embodiments of the present invention, and FIG. 4 is an air bag
FIG. 3 is a partially cross-sectional front view of a type of elastic contractile body. 1... Tubular body 2... Braided reinforcement structure 8
．． 10. Closing member 4. Caulking cap 7.
... Internal cavity 8 ... Connection hole 11 ... Sealing part 12 ... Locking part 18 , 16 ... Annular groove 14 , 15 ... Annular protrusion 17 ... Threaded part 18 ... Support part 19...Connecting bottle hole Patent applicant Brideston Co., Ltd. Figure 1 (a) Figure 3

Claims (1)

【特許請求の範囲】 １、ゴム又はゴム状弾性材料よりなる管状体及びこの管
状体の外周を被覆する高張力繊維類の編組み補強構造に
係合する閉鎖部材であつて、管状体の開口端部に挿着さ
れる円筒状外面をした封止部と、この封止部に隣接し管
状体の開口端部をその軸線方向外方に延在する編組み補
強構造の開口端部に挿着される円管状外面をした係止部
とを具え、その封止部の係止部側端部の外周に、管状体
の開口縁部を固着する接着剤を収容することのできる第
１の環状溝を設け、一方、係止部のこの環状溝に隣接す
る一端及びその他端の外周に第１及び第２の環状突起を
設けるとともに、これら突起により区画され第２の環状
突起に隣接する係止部の外周に、編組み補強構造の開口
縁部を固着する接着剤を収容することのできる第２の環
状溝を設けたことを特徴とする弾性収縮体用閉鎖部材。 ２、管状体内径に等しいかまたはわずかに大きな直径Ｄ
ｍｍとした封止部のその長さを（０．５〜０．７）×Ｄ
ｍｍと、直径Ｄｍｍに対し半径方向内方に０．５〜１．
０ｍｍ窪ませた第１の環状溝の長さを１〜２ｍｍと、直
径Ｄｍｍに対し半径方向外方に０．５〜２ｍｍ突出させ
た第１の環状突起の長さを２〜５ｍｍと、 直径Ｄｍｍに対し半径方向内方に０．５〜１．５ｍｍ窪
ませた第２の環状溝の長さを１〜３ｍｍと、実質的に直
径Ｄｍｍとした係止部の第１の環状突起及び第２の環状
溝との間に位置する円筒状の外周部の長さを（０．３〜
０．６）×Ｄｍｍと、そして直径Ｄｍｍに対し半径方向
外方に０．５〜２ｍｍ突出させた第２の環状突起の長さ
を２ｍｍ以上と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 that engages with a tubular body made of rubber or a rubber-like elastic material and a braided reinforcement structure of high-tensile fibers covering the outer periphery of the tubular body, the closure member comprising an opening of the tubular body. A sealing part having a cylindrical outer surface is inserted into the end, and the open end of the tubular body is inserted into the open end of a braided reinforcement structure adjacent to the sealing part and extending axially outwardly. a locking portion having a circular tubular outer surface to be attached, and an adhesive for fixing the opening edge of the tubular body to the outer periphery of the locking portion side end of the sealing portion; An annular groove is provided, and first and second annular projections are provided on the outer periphery of one end and the other end of the locking portion adjacent to the annular groove, and a locking portion that is partitioned by these projections and adjacent to the second annular projection is provided. A closure member for an elastic contractile body, characterized in that a second annular groove capable of accommodating an adhesive for fixing the opening edge of the braided reinforcement structure is provided on the outer periphery of the stop portion. 2. Diameter D equal to or slightly larger than the tubular body diameter
The length of the sealing part in mm is (0.5 to 0.7) x D
mm, and 0.5 to 1.0 mm radially inward with respect to the diameter D mm.
The length of the first annular groove recessed by 0 mm is 1 to 2 mm, the length of the first annular projection that protrudes radially outward by 0.5 to 2 mm with respect to the diameter Dmm is 2 to 5 mm, and the diameter The length of the second annular groove recessed inward in the radial direction by 0.5 to 1.5 mm with respect to Dmm is 1 to 3 mm, and the first annular protrusion and the first annular groove of the locking part have a substantially diameter Dmm. The length of the cylindrical outer periphery located between the annular groove 2 and the annular groove 2 is (0.3~
0.6)×Dmm, and the length of the second annular protrusion that projects outward in the radial direction by 0.5 to 2 mm with respect to the diameter Dmm is 2 mm or more. Closing member for contraction body.