JP3361860B2 - Connecting device for bellows tube - Google Patents
Connecting device for bellows tubeInfo
- Publication number
- JP3361860B2 JP3361860B2 JP29448793A JP29448793A JP3361860B2 JP 3361860 B2 JP3361860 B2 JP 3361860B2 JP 29448793 A JP29448793 A JP 29448793A JP 29448793 A JP29448793 A JP 29448793A JP 3361860 B2 JP3361860 B2 JP 3361860B2
- Authority
- JP
- Japan
- Prior art keywords
- bellows tube
- pressing
- engaging member
- connection hole
- diameter
- 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.)
- Expired - Fee Related
Links
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、先端側の１山あるい
は複数山を押し潰して蛇腹管を接続するようにした蛇腹
管用接続装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bellows tube connecting device in which one or more peaks on the tip side are crushed to connect a bellows tube.
【０００２】[0002]
【従来の技術】従来、この種の接続装置は、例えば、実
公平２ー１１６７９号公報、実開平３ー７２１８９号公
報、特開平４ー１２５３８９号公報等において各種提案
されているが、いずれの接続装置も、次のような基本的
構成を有している。すなわち、装置本体の接続孔に挿入
された蛇腹管を、装置本体に螺合された押圧部材により
係合部材を介して押圧し、蛇腹管の先端部を接続孔の内
部に形成された当接部にシール部材を介して押し付け
る。蛇腹管をさらに押圧し、シール部材と係合部材との
間に位置する蛇腹管の２〜３山が押し潰されるまでシー
ル部材に押し付けることにより、蛇腹管を接続するもの
である。2. Description of the Related Art Conventionally, various connection devices of this type have been proposed in, for example, Japanese Utility Model Publication No. 2-11679, Japanese Utility Model Publication No. 3-72189, Japanese Patent Application Laid-Open No. 4-125389, and the like. The connection device also has the following basic configuration. That is, the bellows tube inserted into the connection hole of the device body is pressed by the pressing member screwed into the device body through the engaging member, and the tip of the bellows tube is abutted inside the connection hole. It is pressed against the part via the seal member. The bellows tube is connected by further pressing the bellows tube and pressing the bellows tube against the seal member until two or three crests of the bellows tube located between the seal member and the engagement member are crushed.
【０００３】[0003]
【発明が解決しようとする課題】蛇腹管を押圧して押し
潰す際には、押圧部材と係合部材との間および係合部材
と蛇腹管との間の各接触圧が大きくなり、それらの間に
多大の摩擦抵抗が生じる。この結果、押圧部材をねじ込
むために回転させると、その回転が係合部材を介して蛇
腹管に伝達され、蛇腹管が回転することがある。蛇腹管
が回転すると、蛇腹管によってシール部材が傷付けら、
シール部材による気密性が低下するおそれがある。When the bellows tube is pressed and crushed, the contact pressures between the pressing member and the engaging member and between the engaging member and the bellows tube are increased, and the contact pressures between them are increased. A great deal of frictional resistance occurs between them. As a result, when the pressing member is rotated to be screwed in, the rotation may be transmitted to the bellows tube through the engaging member, and the bellows tube may rotate. When the bellows tube rotates, the bellows tube damages the seal member,
The airtightness of the seal member may be reduced.
【０００４】[0004]
【課題を解決するための手段】この発明は、上記問題を
解決するためになされたもので、装置本体の接続孔に挿
入された蛇腹管を、装置本体に螺合された押圧部材をね
じ込むことにより、蛇腹管の谷部に嵌合した係合部材を
介して蛇腹管の先端側へ押圧し、蛇腹管の先端部を接続
孔の内部に形成された当接部にシール部材を介して押し
付け、シール部材と係合部材との間に位置する蛇腹管を
押し潰すようにした蛇腹管用接続装置において、上記押
圧部材を装置本体に螺合されたねじ部と、上記係合部材
に押圧接触し、上記係合部材を介して上記蛇腹管をその
先端側へ押圧する押圧部とに分割し、押圧部をねじ部に
対して相対回転可能としたことを特徴としている。Means for Solving the Problems] The present invention has been made to solve the above problems, it the pressing member a bellows tube which is inserted into the connection hole of the apparatus main body, is screwed into the apparatus main body
Flip By writing, to press the front end side of the bellows tube through the engagement member fitted to the valley portion of the bellows tube, the seal member contacting portion formed the distal end portion of the bellows tube into the connection hole In the connection device for a bellows tube, which is pressed through the bellows tube located between the seal member and the engagement member to be crushed, the pressing member is screwed to the device main body, and the engagement member is provided. It comes into pressure contact with the bellows tube through the engaging member.
It is characterized in that it is divided into a pressing portion that presses toward the tip side, and the pressing portion is rotatable relative to the screw portion.
【０００５】[0005]
【作用】ねじ部を回転させてねじ込むと、押圧部が係合
部材を介して蛇腹管を押圧し、シール部材を介して当接
部に押し付ける。このとき、押圧部がねじ部に対して相
対回転自在であるから、ねじ部の回転が蛇腹管に伝達さ
れることがない。When the screw part is rotated and screwed in, the pressing part presses the bellows tube through the engaging member and presses it against the contact part through the sealing member. At this time, since the pressing portion is rotatable relative to the screw portion, the rotation of the screw portion is not transmitted to the bellows tube.
【０００６】[0006]
【実施例】以下、この発明の実施例について図１〜図１
２を参照して説明する。図１〜図３はこの発明の一実施
例たる接続装置Ａを示すものであり、符号１は装置本体
である。この装置本体１の内部には、その一端面（右端
面）から他端面（左端面）まで貫通する接続孔１ａが形
成されている。この接続孔１ａの内周面には、右端側か
ら左端側へ向かって順次、雌ねじ部１ｂ、接続孔１ａの
軸線と直交する係止面１ｃ、雌ねじ部１ｂより小径の支
持孔部１ｄ、接続孔１ａの軸線と直交する当接面（当接
部）１ｅが形成されている。また、接続装置１の左端部
外周面には、接続装置１をガス栓、ガス器具等のガス機
器に接続するためのテーパねじ部１ｆが形成されてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.
2 will be described. 1 to 3 show a connection device A which is an embodiment of the present invention, and reference numeral 1 is a device body. Inside the device main body 1, a connection hole 1a is formed which penetrates from one end surface (right end surface) to the other end surface (left end surface) thereof. On the inner peripheral surface of the connection hole 1a, from the right end side to the left end side, a female screw portion 1b, a locking surface 1c orthogonal to the axis of the connection hole 1a, a support hole portion 1d having a smaller diameter than the female screw portion 1b, and a connection A contact surface (contact portion) 1e that is orthogonal to the axis of the hole 1a is formed. Further, on the outer peripheral surface of the left end portion of the connection device 1, there is formed a taper screw portion 1f for connecting the connection device 1 to a gas device such as a gas plug or a gas appliance.
【０００７】上記支持孔部１ｄには、筒状をなす支持部
材２が摺動自在に嵌合されている。この支持部材２の右
端部外周には、小径部２ａが形成されており、小径部２
ａの右端部には環状の小凸部２ｂが形成されている。A cylindrical support member 2 is slidably fitted in the support hole 1d. A small diameter portion 2a is formed on the outer periphery of the right end portion of the support member 2, and the small diameter portion 2
An annular small convex portion 2b is formed at the right end of a.
【０００８】小径部２ａには、係合部材３が装着されて
いる。この係合部材３は、両端が結合されることにより
リング状をなすコイル材３ａと、このコイル材３ａの内
部に挿通された略Ｃ字状をなす芯材３ｂとからなるもの
であり、全体としては拡縮径可能であるが、その線径は
ほとんど変化しないような剛性を有している。係合部材
３は、小径部２ａに拡径した状態で移動可能に装着され
ている。その一方、係合部材３は、係止面１ｃに突き当
たることにより、左方への移動が規制されている。した
がって、支持部材２が左方へ移動すると、係合部材３は
相対的に右方へ移動し、小凸部２ｂを乗り越えて支持部
材２から外れる。An engaging member 3 is attached to the small diameter portion 2a. The engagement member 3 is composed of a coil material 3a having a ring shape by connecting both ends and a substantially C-shaped core material 3b inserted into the coil material 3a. Although the diameter can be expanded and contracted, the wire diameter has such a rigidity that it hardly changes. The engagement member 3 is movably attached to the small diameter portion 2a in a state where the diameter is expanded. On the other hand, the engagement member 3 is restricted from moving to the left by hitting the locking surface 1c. Therefore, when the support member 2 moves to the left, the engagement member 3 relatively moves to the right, gets over the small convex portion 2b, and disengages from the support member 2.
【０００９】係合部材３は、支持部材２から外れるとそ
れ自体の弾性力によって縮径し、フレキシブル管４の蛇
腹管４Ａの谷部４ａに嵌まり込むようになっている（図
３（Ａ）参照）。谷部４ａに嵌まり込ん状態において
は、係合部材３の外周側のほぼ半分が蛇腹管４Ａから突
出するよう、係合部材３の線径が設定されている。When the engagement member 3 is disengaged from the support member 2, the engagement member 3 is reduced in diameter by its own elastic force and fits into the valley portion 4a of the bellows pipe 4A of the flexible pipe 4 (see FIG. )reference). The wire diameter of the engaging member 3 is set so that approximately half of the outer peripheral side of the engaging member 3 protrudes from the bellows tube 4A when fitted in the valley 4a.
【００１０】また、支持部材２の左端部内周には、シー
ル部材５が装着固定されている。このシール部材５は、
硬質ゴムあるいは合成繊維を適宜の結合剤によって結合
した部材等からなるものであり、リング状に形成されて
いる。シール部材５の内径は、蛇腹管４Ａの谷部４ａの
内径とほぼ同径か、若干小径になっており、シール部材
５の外径は蛇腹管４Ａの山部４ｂの外径より若干大径に
なっている。A seal member 5 is attached and fixed to the inner periphery of the left end portion of the support member 2. This seal member 5 is
It is made of a member in which hard rubber or synthetic fiber is bonded by an appropriate binder, and is formed in a ring shape. The inner diameter of the seal member 5 is substantially the same as or slightly smaller than the inner diameter of the valley portion 4a of the bellows tube 4A, and the outer diameter of the seal member 5 is slightly larger than the outer diameter of the crest portion 4b of the bellows tube 4A. It has become.
【００１１】上記接続孔１ａの雌ねじ部１ｂには、筒状
をなす押圧部材６が螺合されている。押圧部材６は、ね
じ部６Ａと押圧部６Ｂとから構成されている。ねじ部６
Ａの左端部外周面には、雄ねじ部６ａが形成されてい
る。この雄ねじ部６ａは、雌ねじ部１ｂに螺合されてい
る。したがって、ねじ部６Ａを回転させると、ねじ部６
Ａ、ひいては押圧部材全体が左方または右方へ移動す
る。A cylindrical pressing member 6 is screwed into the female screw portion 1b of the connection hole 1a. The pressing member 6 is composed of a screw portion 6A and a pressing portion 6B. Screw part 6
On the outer peripheral surface of the left end portion of A, a male screw portion 6a is formed. The male screw portion 6a is screwed into the female screw portion 1b. Therefore, when the screw portion 6A is rotated, the screw portion 6A
A, by extension, the entire pressing member moves leftward or rightward.
【００１２】ただし、図２に示すように、ねじ部６Ａの
外周面と接続装置１の内周面とには、環状溝６ｂ，１ｇ
がそれぞれ形成されており、環状溝６ｂ，１ｇには、仮
止めリング７の内周側の半分と外周側の半分とがそれぞ
れ嵌まり込んでいる。これによって、ねじ部６Ａ（押圧
部材６）が容易に回転して移動するのを阻止するように
なっている。その一方、環状溝１ｇの両側面は、テーパ
面状をなしており、しかも仮止めリング７はＣ字状をな
して縮径可能になっている。したがって、ねじ部６Ａを
強制的に回転させて移動させると、仮止めリング７が縮
径してその全体が環状溝６ｂ内に入り込む。この状態で
はねじ部６Ａが容易に回転可能かつ移動可能になる。However, as shown in FIG. 2, annular grooves 6b and 1g are formed on the outer peripheral surface of the screw portion 6A and the inner peripheral surface of the connecting device 1.
Are formed, and the inner circumferential side half and the outer circumferential side half of the temporary fixing ring 7 are fitted in the annular grooves 6b and 1g, respectively. This prevents the screw portion 6A (pressing member 6) from easily rotating and moving. On the other hand, both side surfaces of the annular groove 1g are tapered, and the temporary fixing ring 7 is C-shaped and can be reduced in diameter. Therefore, when the screw portion 6A is forcibly rotated and moved, the diameter of the temporary fixing ring 7 is reduced and the whole thereof enters the annular groove 6b. In this state, the screw portion 6A can be easily rotated and moved.
【００１３】なお、押圧部材６が容易に移動するのを仮
止めリング７によって阻止するようにしたのは、次の二
つの理由からである。一つの理由は、押圧部材６が装置
本体１から抜け出るの防止するためである。他の一つの
理由は、押圧部材６が左方へ移動して、例えばその先端
部が図１に示す係合部材３の内側まで移動すると、係合
部材３が支持部材２から外れても押圧部材６の先端部に
嵌合してしまい、蛇腹管４Ａに嵌まり込むことができな
くなってしまう。このような事態を未然に防止するため
である。Incidentally, the temporary movement of the pressing member 6 is prevented by the temporary fixing ring 7 for the following two reasons. One reason is to prevent the pressing member 6 from slipping out of the apparatus main body 1. Another reason is that when the pressing member 6 moves to the left and the tip portion thereof moves to the inside of the engaging member 3 shown in FIG. The member 6 is fitted into the tip portion of the member 6 and cannot be fitted into the bellows tube 4A. This is to prevent such a situation.
【００１４】ねじ部６Ａの右端部内周面には、シールリ
ング８が装着されている。このシールリング８は、フレ
キシブル管４と押圧部材６との間から雨水が侵入するの
を防止するためのものであり、フレキシブル管４の外被
４Ｂに押圧接触するようになっている。また、ねじ部６
Ａの中間部外周には、Ｏリング９が装着されている。こ
のＯリング９は、図３（Ｃ）に示すように、蛇腹管４Ａ
の接続が完了した時点では、ねじ部６Ａと装置本体１と
の間に嵌まり込み、それらの間から雨水が装置本体１の
内部に侵入するのを防止する。A seal ring 8 is attached to the inner peripheral surface of the right end portion of the screw portion 6A. The seal ring 8 is for preventing rainwater from entering between the flexible tube 4 and the pressing member 6, and is configured to press-contact the outer cover 4B of the flexible tube 4. Also, the screw part 6
An O-ring 9 is attached to the outer periphery of the intermediate portion of A. This O-ring 9 is, as shown in FIG. 3C, a bellows tube 4A.
When the connection is completed, it is fitted between the screw portion 6A and the device body 1 to prevent rainwater from entering the inside of the device body 1 from between them.
【００１５】一方、上記押圧部６Ｂは、その右端部がね
じ部６Ａの左端部内周面に形成された環状溝６ｃに嵌ま
り込んでいる。この場合、押圧部６Ｂの外径は環状溝６
ｃの内径とほぼ同一か若干小径になっており、しかも押
圧部６ｂと環状溝６ｃとの互いの接触部には、グリース
等の潤滑油が塗布されるか、あるいは接触部の一方に潤
滑性に富む樹脂がコーティングされている。これによっ
て、押圧部６Ｂがねじ部６Ａに回動自在に連結されてい
る。なお、符号１０は、押圧部６Ｂが環状溝６ｃから抜
け出るのを防止するための止め輪である。On the other hand, the pressing portion 6B has a right end portion fitted into an annular groove 6c formed on the inner peripheral surface of the left end portion of the screw portion 6A. In this case, the outer diameter of the pressing portion 6B is the annular groove 6
The inner diameter of c is substantially the same as or slightly smaller than that of the inner diameter of c. Moreover, lubricating oil such as grease is applied to the contact portion between the pressing portion 6b and the annular groove 6c, or lubricity is provided on one of the contact portions. Coated with rich resin. As a result, the pressing portion 6B is rotatably connected to the screw portion 6A. Reference numeral 10 is a retaining ring for preventing the pressing portion 6B from coming out of the annular groove 6c.
【００１６】また、押圧部６Ｂの内径は、ねじ部６Ａの
内径よりも小径になっており、蛇腹管４Ａの外径よりも
若干大径になっている。したがって、押圧部材６の内部
には、蛇腹管４Ａが挿通可能である。また、押圧部６Ｂ
の先端部には、テーパ面６ｄが形成されている。このテ
ーパ面６ｄは、押圧部材６が左方へ移動したときに、係
合部材３に突き当たり、係合部材３を介して蛇腹管４Ａ
を左方へ押圧するものである。勿論、テーパ面６ｄに代
えて、接続孔１ａの軸線と直交するような平面にしても
よい。The inner diameter of the pressing portion 6B is smaller than the inner diameter of the threaded portion 6A and slightly larger than the outer diameter of the bellows tube 4A. Therefore, the bellows tube 4A can be inserted into the inside of the pressing member 6. Also, the pressing portion 6B
A tapered surface 6d is formed at the tip of the. When the pressing member 6 moves to the left, the tapered surface 6d hits the engaging member 3 and the bellows tube 4A via the engaging member 3.
Is pressed to the left. Of course, the tapered surface 6d may be replaced with a flat surface orthogonal to the axis of the connection hole 1a.
【００１７】次に、上記構成の蛇腹管用接続装置Ａにフ
レキシブル管４の蛇腹管４Ａを接続する場合について図
３を参照して説明する。なお、接続に際しては、蛇腹管
４Ａを接続孔１ａに挿入してその先端がシール部材５に
突き当たったとき、外被４Ｂの先端が押圧部材６のほぼ
中間部に位置するよう、外被４Ｂの先端部を所定の長さ
にわたって予め取り除いておく。また、蛇腹管４Ａにつ
いては、その谷部４ａが先端に位置するように切断して
おく。この場合、谷部４ａのうちの最も小径の部分が先
端に位置するようにするのが望ましい。Next, a case where the bellows tube 4A of the flexible tube 4 is connected to the bellows tube connecting device A having the above-described structure will be described with reference to FIG. At the time of connection, when the bellows tube 4A is inserted into the connection hole 1a and the tip thereof abuts the seal member 5, the tip of the jacket 4B is positioned substantially in the middle of the pressing member 6 so that the jacket 4B is placed. The tip is preliminarily removed over a predetermined length. Further, the bellows tube 4A is cut so that the valley portion 4a is located at the tip. In this case, it is desirable that the smallest diameter portion of the valley portion 4a be located at the tip.
【００１８】上記のように準備したら、図３（Ａ）に示
すように、蛇腹管４Ａを押圧部材６を通して接続孔１ａ
内に挿入する。蛇腹管４Ａの先端がシール部材５に突き
当たった後、さらに蛇腹管４Ａを挿入すると、支持部材
２がシール部材５を介して左方へ移動させられる。この
とき、係合部材３は、係止面１ｃによって左方への移動
を阻止されているので、支持部材２に対して相対的に右
方へ移動し、小凸部２ｂを乗り越えて支持部材２から外
れる。そして、係合部材３はそれ自体の弾性力によって
縮径し、蛇腹管４Ａの谷部４ａに嵌まり込む。係合部材
３が支持部材２から外れて谷部４ａに嵌まり込んだこと
は、係合部材３が小凸部２ｂを乗り越える際に蛇腹管４
Ａの挿入抵抗が増大すること、係合部材３が縮径して蛇
腹管４Ａに突き当たるときの衝撃音、およびそのときの
感触等によって分かる。After the above-mentioned preparation, as shown in FIG. 3 (A), the bellows tube 4A is passed through the pressing member 6 and the connection hole 1a.
Insert inside. When the bellows tube 4A is further inserted after the tip of the bellows tube 4A hits the seal member 5, the support member 2 is moved to the left through the seal member 5. At this time, since the engaging member 3 is prevented from moving to the left by the locking surface 1c, the engaging member 3 moves to the right relative to the supporting member 2 and rides over the small convex portion 2b, so that the supporting member 3 moves. It deviates from 2. Then, the engagement member 3 contracts in diameter by its own elastic force and fits into the valley portion 4a of the bellows tube 4A. The fact that the engaging member 3 is disengaged from the support member 2 and fitted into the valley portion 4a means that the bellows tube 4 is formed when the engaging member 3 gets over the small convex portion 2b.
It can be seen from an increase in the insertion resistance of A, an impact sound when the engagement member 3 has a reduced diameter and strikes the bellows tube 4A, and a feel at that time.
【００１９】なお、この実施例の場合、係合部材３は蛇
腹管４Ａの先端から２山分だけ後方の谷部４ａに嵌まり
込むようになっているが、１山分あるいは３山分以上後
方の谷部４ａに嵌まり込むようにしてもよい。これは、
係合部材３とシール部材５との間の距離によって適宜設
定することができる。また、この実施例では、蛇腹管４
がシール部材５を介して当接部１ｅに突き当たるまで蛇
腹管４Ａを挿入しているが、係合部材３が蛇腹管４Ａに
嵌まり込んだら蛇腹管４Ａの挿入を止めてもよい。In the case of this embodiment, the engaging member 3 is adapted to fit into the valley portion 4a behind the bellows tube 4A by two peaks, but one peak or three peaks or more. You may make it fit in the trough part 4a of the back. this is,
It can be appropriately set depending on the distance between the engagement member 3 and the seal member 5. Further, in this embodiment, the bellows tube 4 is
Although the bellows tube 4A is inserted until it abuts the contact portion 1e via the seal member 5, the insertion of the bellows tube 4A may be stopped when the engagement member 3 is fitted into the bellows tube 4A.
【００２０】次に、ねじ部６Ａを回転させて左方へ移動
させる。すると、それに伴って押圧部６Ｂが左方へ移動
し、そのテーパ面６ｄが係合部材３に突き当たる（図３
（Ｂ）参照）。そして、係合部材３を介して蛇腹管４Ａ
を左方へ押し、その先端部をシール部材５を介して当接
面１ｅに押し付ける。ねじ部６Ａをさらに回転させて同
方向へ移動させると、係合部材３とシール部材５との間
の蛇腹管４Ａが押し潰される。これによって、蛇腹管４
Ａが接続装置Ａに強固に、かつ気密に接続される（図３
（Ｃ）参照）。Next, the screw portion 6A is rotated to move it to the left. Then, the pressing portion 6B moves to the left accordingly, and the tapered surface 6d abuts on the engaging member 3 (FIG. 3).
(See (B)). Then, the bellows tube 4A via the engagement member 3
Is pushed to the left, and its tip is pressed against the contact surface 1e via the seal member 5. When the screw portion 6A is further rotated and moved in the same direction, the bellows tube 4A between the engaging member 3 and the seal member 5 is crushed. By this, the bellows tube 4
A is firmly and airtightly connected to the connection device A (see FIG. 3).
(See (C)).
【００２１】ここで、上記の接続装置Ａにおいては、押
圧部材６を互いに別体であるねじ部６Ａと押圧部６Ｂと
から構成し、しかも押圧部６Ｂをねじ部６Ａに回動自在
に連結しているので、蛇腹管４Ａの押し潰し時に、ねじ
部６Ａを回転させたとしても、押圧部６Ｂがねじ部６Ａ
に対して相対的に逆方向へ回転するだけであり、蛇腹管
４Ａが回転することはない。よって、シール部材５が蛇
腹管４Ａによって傷つけられるのを防止することができ
る。Here, in the connection device A, the pressing member 6 is composed of the screw portion 6A and the pressing portion 6B which are separate bodies, and the pressing portion 6B is rotatably connected to the screw portion 6A. Therefore, even when the screw portion 6A is rotated when the bellows tube 4A is crushed, the pressing portion 6B is
However, the bellows tube 4A does not rotate. Therefore, it is possible to prevent the seal member 5 from being damaged by the bellows tube 4A.
【００２２】次に、この発明の他の実施例について説明
する。なお、以下の実施例においては、上記実施例と異
なる部分についてのみ説明することとし、上記実施例と
同様な部分には同一符号を付してその説明を省略する。Next, another embodiment of the present invention will be described. In the following embodiments, only parts different from the above embodiments will be described, and the same parts as those in the above embodiments are designated by the same reference numerals and the description thereof will be omitted.
【００２３】図４に示す接続装置Ｂにおいては、上記の
実施例における止め輪１０が用いられておらず、ねじ部
６Ａと押圧部６Ｂとが互いに分離可能になっている。し
かも、仮止めリング７は、ねじ部６Ａと装置本体１との
間でなく、押圧部６Ｂと装置本体１との間に設けられて
いる。したがって、この実施例においては、ねじ部６Ａ
が右方へは容易に移動可能であるが、押圧部材６全体が
左方へ容易に移動することは阻止することができる。な
お、この実施例では仮止めリング７が断面が円形になっ
ている。In the connecting device B shown in FIG. 4, the retaining ring 10 in the above embodiment is not used, and the screw portion 6A and the pressing portion 6B can be separated from each other. Moreover, the temporary fixing ring 7 is provided not between the screw portion 6A and the apparatus body 1 but between the pressing portion 6B and the apparatus body 1. Therefore, in this embodiment, the threaded portion 6A
Can be easily moved to the right, but it is possible to prevent the entire pressing member 6 from easily moving to the left. In this embodiment, the temporary fixing ring 7 has a circular cross section.
【００２４】図５に示す接続装置Ｃは、シール部材５を
当接面１ｅに固着したものであり、シール部材５の内径
は上記実施例のものと同様であるが、外径は蛇腹管４ａ
の外径より若干小さくなっている。また、支持部材２に
は、環状突出部２ｃが形成されている。この環状突出部
２ｃの内径は、シール部材５の外径より若干大きく、蛇
腹管４Ａの外径より若干小さくなっている。したがっ
て、蛇腹管４Ａを挿入すると、蛇腹管４Ａの最も先端側
の山部４ｂが環状突出部２ｃに突き当たり、これによっ
て支持部材２が移動させられるようになっている。ま
た、突き当たった状態においては、蛇腹管４Ａの先端が
支持部材２から左方へ突出しており、これによって蛇腹
管４Ａの先端がシール部材５に確実に接触する。In the connecting device C shown in FIG. 5, the seal member 5 is fixed to the contact surface 1e, and the inner diameter of the seal member 5 is the same as that of the above-mentioned embodiment, but the outer diameter is the bellows tube 4a.
Is slightly smaller than the outer diameter of. Further, the support member 2 is formed with an annular protrusion 2c. The inner diameter of the annular protruding portion 2c is slightly larger than the outer diameter of the seal member 5 and slightly smaller than the outer diameter of the bellows tube 4A. Therefore, when the bellows tube 4A is inserted, the peak portion 4b on the most distal end side of the bellows tube 4A abuts on the annular protrusion 2c, whereby the support member 2 is moved. In addition, in the abutted state, the tip of the bellows tube 4A projects leftward from the support member 2, whereby the tip of the bellows tube 4A surely contacts the seal member 5.
【００２５】また、この接続装置Ｃにおいては、仮止め
リング７に代えて、装置本体１と押圧部材６との間に位
置決めリング１１が装着されている。この位置決めリン
グ１１は、一部が切り欠かかれることによって拡縮径可
能になっており、その切欠き部を通して押圧部材６から
外すことが可能である。したがって、位置決めリング１
１が装着された状態では、押圧部材６の左方への移動が
阻止されるが、蛇腹管４Ａの挿入後には、位置決めリン
グ１１を外すことによって押圧部材６を左方へ移動させ
ることができる。Further, in this connecting device C, a positioning ring 11 is mounted between the device body 1 and the pressing member 6 instead of the temporary fixing ring 7. The positioning ring 11 can be expanded / contracted by cutting a part thereof, and can be detached from the pressing member 6 through the notch. Therefore, the positioning ring 1
Although the pressing member 6 is prevented from moving to the left in the state in which the pressing member 6 is mounted, the pressing member 6 can be moved to the left by removing the positioning ring 11 after inserting the bellows tube 4A. .
【００２６】図６に示す接続装置Ｄは、押圧部６Ｂに代
えて押圧部６Ｂ1を用いるようにしたものである。すな
わち、ねじ部６Ａの先端部内周には、ストレート孔部６
ｅが形成されている。このストレート孔６ｅの奥側に
は、押圧部６Ｂ1が装着されている。押圧部６Ｂ1は、図
７に示すように、円形の座金状をなしており、その外周
面には複数の小突起６ｆが周方向に等間隔をもって配置
形成されている。そして、図８に示すように、この小突
起６ｆがストレート孔部６ｅの奥側に形成された環状の
係止溝６ｇに入り込むことによって抜け止めされてい
る。ストレート孔部６ｅと押圧部６Ｂ′との互いの接触
部、例えばストレート孔部６ｂの底面と押圧部６Ｂ1の
側面には、グリース等の潤滑油の塗布またはコーティン
グ等が施されており、これによって押圧部６Ｂ1がねじ
部６Ａに対して回転自在になっている。The connecting device D shown in FIG. 6 uses a pressing portion 6B 1 instead of the pressing portion 6B. That is, the straight hole portion 6 is provided on the inner circumference of the tip portion of the screw portion 6A.
e is formed. A pressing portion 6B 1 is mounted on the inner side of the straight hole 6e. As shown in FIG. 7, the pressing portion 6B 1 has a circular washer shape, and a plurality of small projections 6f are formed on the outer peripheral surface thereof at equal intervals in the circumferential direction. Then, as shown in FIG. 8, the small protrusion 6f is prevented from coming off by entering into the annular locking groove 6g formed on the inner side of the straight hole portion 6e. Mutual contact portion between the straight hole portion 6e and the pressing part 6B ', the bottom and side surfaces of the pressing portion 6B 1, for example, straight hole portion 6b, coating or coating, and the like of the lubricant such as grease has been subjected, which The pressing portion 6B 1 is thereby rotatable with respect to the screw portion 6A.
【００２７】また、上記ストレート孔部６ｅの外側の端
部には、外側に向かって拡径するテーパ面６ｈが形成さ
れている。このテーパ面６ｈの最小径はストレート孔部
６ｅの内径と同一になっており、両者は蛇腹管４Ａの谷
部４ａに嵌まり込んだ係合部材３の外径より若干小径に
なっている。また、当接面１ｅには、支持部材２が左方
へ移動したときに、支持部材２が入り込む環状溝１ｈが
形成されている。さらに、係合部材３は蛇腹管４Ａの先
端から１山分だけ後方の谷部４ａに嵌まり込むようにな
っている。A taper surface 6h is formed at the outer end of the straight hole 6e so that the diameter of the taper surface 6h increases outward. The minimum diameter of the tapered surface 6h is the same as the inner diameter of the straight hole portion 6e, and both are slightly smaller than the outer diameter of the engaging member 3 fitted in the valley portion 4a of the bellows tube 4A. Further, the contact surface 1e is formed with an annular groove 1h into which the support member 2 enters when the support member 2 moves leftward. Further, the engaging member 3 is adapted to fit into the valley portion 4a at the rear by one peak from the tip of the bellows tube 4A.
【００２８】上記構成の接続装置Ｄに蛇腹管４Ａを接続
する場合には、図９（Ａ）に示すように、係合部材３が
支持部材２から外れて蛇腹管４Ａの谷部４ａに嵌まり込
むまで蛇腹管４Ａを接続孔１ａに挿入する。次に、ねじ
部６Ａを左方へ移動させ、そのテーパ面６ｈを係合部材
３に突き当てる。その後、ねじ部６Ａをさらに左方へ移
動させると、係合部材３がテーパ面６ｈによって縮径さ
せられるとともに、ストレート孔部６ｅ内に嵌まり込ん
で縮径状態に維持される。係合部材３が縮径すると、そ
れに伴って蛇腹管４の谷部４ａが弾性変形し、谷部４ａ
のほぼ全体が係合部材３の内周部分に密接するようにな
る。このようにしたのは次の理由による。When connecting the bellows tube 4A to the connecting device D having the above structure, as shown in FIG. 9A, the engaging member 3 is disengaged from the support member 2 and fitted into the valley portion 4a of the bellows tube 4A. The bellows tube 4A is inserted into the connection hole 1a until it is fitted. Next, the screw portion 6A is moved to the left, and the taper surface 6h is abutted against the engaging member 3. Then, when the screw portion 6A is further moved to the left, the engagement member 3 is reduced in diameter by the tapered surface 6h, and is fitted in the straight hole portion 6e to be maintained in a reduced diameter state. When the diameter of the engaging member 3 is reduced, the valley portion 4a of the bellows tube 4 is elastically deformed accordingly, and the valley portion 4a is formed.
Almost comes into close contact with the inner peripheral portion of the engaging member 3. The reason for doing this is as follows.
【００２９】すなわち、蛇腹管４Ａの谷部４ａの曲率半
径は、係合部材３の線径に比して寸法誤差が大きい。谷
部４ａの曲率半径が大きめに形成された場合には、係合
部材３が谷部４ａに深く入り込み、谷部４ａからの係合
部材３の突出量が小さくなってしまう。逆に、谷部４ａ
の曲率半径が小さめに形成された場合には、係合部材３
が谷部４ａに深く入らないので、谷部４ａからの係合部
材３の突出量が過度に大きくなることがある。このよう
な不具合を解消するために、係合部材３の線径を谷部４
ａの曲率半径の最大許容値に合わせておき、谷部４ａを
係合部材３に沿うように変形させることにより、係合部
材３の突出量を常に一定にするものである。That is, the radius of curvature of the valley portion 4a of the bellows tube 4A has a larger dimensional error than the wire diameter of the engaging member 3. When the radius of curvature of the valley 4a is formed to be large, the engaging member 3 deeply enters the valley 4a, and the protrusion amount of the engaging member 3 from the valley 4a becomes small. Conversely, the valley 4a
When the radius of curvature of the engaging member 3 is small, the engaging member 3
Does not go deeply into the valley 4a, so the amount of protrusion of the engagement member 3 from the valley 4a may become excessively large. In order to eliminate such a problem, the wire diameter of the engaging member 3 is changed to the valley portion 4
The protrusion amount of the engaging member 3 is always constant by deforming the valley 4a along the engaging member 3 in accordance with the maximum allowable value of the radius of curvature of a.
【００３０】ねじ部６Ａをさらに左方へ移動させると、
押圧部６Ｂ1が係合部材３に突き当たり、係合部材３を
介して蛇腹管４Ａを押す。そして、シール部材５を介し
て当接面１ｅに突き当てる。ねじ部６Ａをさらに左方へ
移動させると、シール部材５と係合部材３との間の１山
分が押し潰される。これによって、蛇腹管４Ａの接続が
終了する。なおこのとき、支持部材２はねじ部６Ａによ
って左方へ移動させられ、環状溝１ｈに入り込む。When the screw portion 6A is further moved to the left,
The pressing portion 6B 1 hits the engaging member 3 and pushes the bellows tube 4A via the engaging member 3. Then, it abuts against the contact surface 1e via the seal member 5. When the screw portion 6A is further moved to the left, one ridge between the seal member 5 and the engaging member 3 is crushed. This completes the connection of the bellows tube 4A. At this time, the support member 2 is moved to the left by the screw portion 6A and enters the annular groove 1h.
【００３１】上記の接続装置においても押圧部６Ｂ1が
ねじ部６Ａに対して相対回転することにより、蛇腹管４
Ａが回転するのを防止することができる。なお、テーパ
面６ｈが係合部材３に突き当たって縮径させる際に、係
合部材３を回転させようとするが、その接触圧が小さい
ので蛇腹管４Ａが回転することはない。In the above connecting device as well, the pressing portion 6B 1 rotates relative to the screw portion 6A, so that the bellows tube 4
It is possible to prevent A from rotating. When the tapered surface 6h hits the engaging member 3 to reduce its diameter, the engaging member 3 is tried to rotate, but the contact pressure is small, so that the bellows tube 4A does not rotate.
【００３２】また、この実施例においては、押圧部材６
を左方へ移動させたときに、支持部材２が押圧部材６に
押されて環状溝１ｈに入り込むようにしているので、前
述した各実施例に比して支持部材２が環状溝１ｈに入り
込む分だけ装置全体を短くすることができる。Further, in this embodiment, the pressing member 6
Since the supporting member 2 is pushed into the annular groove 1h by being pushed by the pressing member 6 when is moved to the left, the supporting member 2 enters the annular groove 1h as compared with the above-described embodiments. The entire device can be shortened accordingly.
【００３３】図１０および図１１に示す接続装置Ｅは、
図６に示す接続装置Ｄの押圧部６Ｂ1に代えて押圧部６
Ｂ2を用いるようにしたものであり、押圧部６Ｂ2は、接
続装置Ｄにおけるテーパ面６ｈおよびストレート孔部６
ｅの機能を兼ね備えている。すなわち、押圧部６Ｂ
2は、先端側（当接部１ｅ側）から後端側へ向かって順
次形成された、テーパ部６ｉ、筒部６ｊおよび環状突出
部６ｋから構成されている。テーパ部６ｉおよび筒部６
ｊの内周面は、蛇腹管４Ａに対してそれぞれテーパ面６
ｈ、ストレート孔部６ｅと同一の機能を果すように形成
されており、環状突出部６ｋは押圧部６Ｂ′と同一の機
能を果すように形成されている。なお、押圧部６Ｂ
2は、その先端面が環状の係止凸部６ｌによって抜け止
めされている。The connection device E shown in FIGS. 10 and 11 is
The pressing portion 6B 1 of the connection device D shown in FIG.
B 2 is used, and the pressing portion 6B 2 includes the tapered surface 6h and the straight hole portion 6 in the connection device D.
It also has the function of e. That is, the pressing portion 6B
The reference numeral 2 includes a tapered portion 6i, a tubular portion 6j, and an annular protruding portion 6k that are sequentially formed from the front end side (contact portion 1e side) toward the rear end side. Tapered portion 6i and tubular portion 6
The inner peripheral surface of j is tapered surface 6 with respect to the bellows tube 4A.
h, it is formed so as to have the same function as the straight hole portion 6e, and the annular projecting portion 6k is formed so as to have the same function as the pressing portion 6B '. The pressing portion 6B
The end surface of 2 is prevented from coming off by an annular locking projection 6l.
【００３４】図１２は、座金状をなす押圧部のさらに他
の変形例を示すものであり、押圧部６Ｂ3は、テーパ状
に形成されている。この押圧部６Ｂ3は、図１〜図５に
示す実施例のテーパ面６ｄと同様な機能を果すものであ
る。FIG. 12 shows still another modification of the washer-shaped pressing portion, in which the pressing portion 6B 3 is formed in a tapered shape. The pressing portion 6B 3 is to perform the same function as the tapered surface 6d of the embodiment shown in FIGS.
【００３５】なお、この発明は、上記の実施例に限定さ
れるものでなく、その要旨を逸脱しない範囲において適
宜変更可能である。例えば、上記の各実施例において
は、装置本体１をねじ部１ｆを利用してガス機器に接続
するようにしているが、装置本体１をガス機器と一体に
形成してもよい。The present invention is not limited to the above embodiments, but can be modified as appropriate without departing from the scope of the invention. For example, in each of the above-described embodiments, the device body 1 is connected to the gas device by using the screw portion 1f, but the device body 1 may be formed integrally with the gas device.
【００３６】また、上記の実施例は、係合部材３を接続
孔１ａ内に予め配置し、蛇腹管４Ａを挿入すると自動的
に蛇腹管４Ａに装着されるタイプの接続装置にこの発明
を適用したものであるが、二つ割りの係合部材を蛇腹管
に予め装着した後、蛇腹管を接続孔に挿入するタイプの
ものにも適用することができる。Further, in the above-described embodiment, the present invention is applied to a connecting device of a type in which the engaging member 3 is arranged in advance in the connection hole 1a and the bellows tube 4A is automatically attached when the bellows tube 4A is inserted. However, the invention can also be applied to a type in which the bellows tube is inserted into the connection hole after the halves of the engaging member are previously attached to the bellows tube.
【００３７】さらに、上記の実施例においては、接続孔
１ａの内周に形成された雌ねじ部１ｂに押圧部材６を螺
合させているが、特開平４ー１２５３８９号公報に記載
のもののように、装置本体１の外周に押圧部材６のねじ
部６Ａを螺合させるようにしてもよい。Further, in the above embodiment, the pressing member 6 is screwed into the female screw portion 1b formed on the inner circumference of the connection hole 1a, but as in the one disclosed in Japanese Patent Laid-Open No. 125389/1992. The screw portion 6A of the pressing member 6 may be screwed onto the outer periphery of the apparatus body 1.
【００３８】[0038]
【発明の効果】以上説明したように、この発明の蛇腹管
用接続装置によれば、押圧部材を装置本体に螺合された
ねじ部と係合部材に押圧接触する押圧部とに分割し、押
圧部をねじ部に対して相対回転可能としたものであるか
ら、押圧部材の回転移動に伴って蛇腹管が回転するのを
防止することができ、蛇腹管によってシール部材が傷つ
けられるのを防止することができ、これによって、蛇腹
管と装置本体の接続孔との間の気密性を長期にわたって
良好に維持することができるという効果が得られる。As described above, according to the bellows tube connecting device of the present invention, the pressing member is divided into the screw portion screwed into the main body of the device and the pressing portion which comes into press contact with the engaging member, and presses. Since the portion is rotatable relative to the screw portion, it is possible to prevent the bellows tube from rotating due to the rotational movement of the pressing member, and prevent the seal member from being damaged by the bellows tube. As a result, it is possible to obtain the effect that the airtightness between the bellows tube and the connection hole of the device body can be favorably maintained for a long period of time.
【図１】この発明に係る蛇腹管用接続装置Ａを示す縦断
面図である。FIG. 1 is a vertical sectional view showing a bellows tube connecting device A according to the present invention.
【図２】図１のＸ円部の拡大図である。FIG. 2 is an enlarged view of an X circle portion of FIG.
【図３】図１に示す接続装置Ａの作用を説明するための
図であって、図３（Ａ）は蛇腹管を接続孔に挿入した状
態を示す図、図３（Ｂ）は押圧部材が係合部材に突き当
たった状態を示す図、図３（Ｃ）は蛇腹管が押し潰され
た状態を示す図である。3A and 3B are views for explaining the operation of the connection device A shown in FIG. 1, FIG. 3A is a view showing a state in which a bellows tube is inserted into a connection hole, and FIG. 3B is a pressing member. FIG. 3 is a diagram showing a state where the abutment member has struck the engaging member, and FIG. 3C is a diagram showing a state where the bellows tube is crushed.
【図４】この発明に係る蛇腹管用接続装置Ｂを示す断面
図である。FIG. 4 is a sectional view showing a bellows tube connecting device B according to the present invention.
【図５】この発明に係る蛇腹管用接続装置Ｃを示す断面
図である。FIG. 5 is a sectional view showing a bellows tube connecting device C according to the present invention.
【図６】この発明に係る蛇腹管用接続装置Ｄを示す断面
図である。FIG. 6 is a sectional view showing a bellows tube connecting device D according to the present invention.
【図７】図６に示す接続装置Ｄにおいて用いられる座金
を示す平面図である。7 is a plan view showing a washer used in the connection device D shown in FIG.
【図８】図６のＹ円部の拡大図である。FIG. 8 is an enlarged view of a Y circle portion in FIG.
【図９】図６に示す接続装置Ｄの作用を説明するための
図であって、図９（Ａ）は蛇腹管に係合部材が嵌まり込
むとともに、押圧部材のテーパ面が係合部材に突き当た
った状態を示す図、図９（Ｂ）は座金が係合部材に突き
当たった状態を示す図、図９（Ｃ）は蛇腹管が押し潰さ
れた状態を示す図である。9 is a view for explaining the operation of the connection device D shown in FIG. 6, and FIG. 9 (A) shows that the engaging member fits into the bellows tube, and the tapered surface of the pressing member is the engaging member. 9B is a diagram showing a state in which the washer abuts against the engaging member, and FIG. 9C is a diagram showing a state in which the bellows tube is crushed.
【図１０】この発明に係る蛇腹管用接続装置Ｅを示す断
面図である。FIG. 10 is a cross-sectional view showing a bellows tube connecting device E according to the present invention.
【図１１】図１０のＺ円部の拡大図である。11 is an enlarged view of a Z circle portion of FIG.
【図１２】この発明に係る押圧部の他の例を示す図１１
と同様の図である。FIG. 12 is a view showing another example of the pressing portion according to the present invention.
It is a figure similar to.
Ａ 蛇腹管用接続装置 Ｂ 蛇腹管用接続装置 Ｃ 蛇腹管用接続装置 Ｄ 蛇腹管用接続装置 １ 装置本体 １ａ 接続孔 １ｅ 当接面（当接部） ３ 係合部材 ４Ａ 蛇腹管 ４ａ 谷部 ４ｂ 山部 ５ シール部材 ６ 押圧部材 ６Ａ ねじ部 ６Ｂ 押圧部 ６Ｂ1 押圧部 ６Ｂ2 押圧部 ６Ｂ3 押圧部A connection device for bellows tube B connection device for bellows tube C connection device for bellows tube D connection device for bellows tube 1 device body 1a connection hole 1e contact surface (contact part) 3 engagement member 4A bellows tube 4a valley part 4b mountain part 5 seal Member 6 Pressing member 6A Screw part 6B Pressing part 6B 1 Pressing part 6B 2 Pressing part 6B 3 Pressing part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 斎藤 俊夫 東京都品川区豊町４丁目20番14号 光陽 産業株式会社内 (72)発明者 小杉 靖 東京都品川区豊町４丁目20番14号 光陽 産業株式会社内 (56)参考文献 実開 平３−73786（ＪＰ，Ｕ) 実開 平５−38487（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 33/00 F16L 33/28 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshio Saito 4-20-14 Toyohashi, Shinagawa-ku, Tokyo Inside Koyo Sangyo Co., Ltd. (72) Yasushi Kosugi 4-20-14 Toyohmachi, Shinagawa-ku, Tokyo Within Koyo Sangyo Co., Ltd. (56) References: Kaihei 3-73786 (JP, U): Kaihei 5-38487 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F16L 33 / 00 F16L 33/28
Claims (2)
を、装置本体に螺合された押圧部材をねじ込むことによ
り、蛇腹管の谷部に嵌合した係合部材を介して蛇腹管の
先端側へ押圧し、蛇腹管の先端部を接続孔の内部に形成
された当接部にシール部材を介して押し付け、シール部
材と係合部材との間に位置する蛇腹管を押し潰すように
した蛇腹管用接続装置において、上記押圧部材を装置本
体に螺合されたねじ部と、上記係合部材に押圧接触し、
上記係合部材を介して上記蛇腹管をその先端側へ押圧す
る押圧部とに分割し、押圧部をねじ部に対して相対回転
可能としたことを特徴とする蛇腹管用接続装置。1. An engaging member fitted in a trough portion of a bellows tube by screwing a bellows tube inserted into a connection hole of the apparatus body into a pressing member screwed into the apparatus body. Through the bellows tube
By pressing it toward the tip side, the tip portion of the bellows tube is pressed against the contact portion formed inside the connection hole via the seal member, so that the bellows tube located between the seal member and the engaging member is crushed. in the bellows tube connecting device, and a screw portion screwed to the pressing member in the apparatus main body, to press contact with the engagement member,
The bellows tube is pushed toward the tip side through the engaging member.
A connecting device for a bellows tube, characterized in that the pressing part is divided into two parts, and the pressing part is rotatable relative to the screw part.
時には上記蛇腹管の谷部に嵌まり込むように形成されて
おり、上記接続孔の内部の上記押圧部材と上記当接部と
の間には、接続孔に挿入される上記蛇腹管によって当接
部側へ移動させられる支持部材が接続孔の軸線方向へ移
動可能に設けられ、この支持部材の外周に上記係合部材
が拡径した状態で移動可能に装着され、上記接続孔の内
部には、上記支持部材が上記当接部側へ移動したときに
上記係合部材の当接部側への移動を阻止することによ
り、上記係合部材を上記支持部材から離脱させて上記蛇
腹管の谷部に嵌まり込ませる係止部を設けたことを特徴
とする請求項１に記載の蛇腹管用接続装置。2. The engaging member is formed so as to be capable of expanding and contracting in diameter and to be fitted into the valley portion of the bellows tube when the diameter is reduced, and the pressing member and the contact portion inside the connection hole. A support member that is moved to the contact portion side by the bellows tube inserted into the connection hole is provided movably in the axial direction of the connection hole, and the engagement member is provided on the outer periphery of the support member. It is movably mounted in an expanded state, and prevents the engagement member from moving toward the contact portion when the support member moves toward the contact portion inside the connection hole. The connecting device for a bellows tube according to claim 1, further comprising: a locking portion that disengages the engaging member from the support member and fits into a valley portion of the bellows tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29448793A JP3361860B2 (en) | 1993-10-29 | 1993-10-29 | Connecting device for bellows tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29448793A JP3361860B2 (en) | 1993-10-29 | 1993-10-29 | Connecting device for bellows tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07127778A JPH07127778A (en) | 1995-05-16 |
| JP3361860B2 true JP3361860B2 (en) | 2003-01-07 |
Family
ID=17808404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29448793A Expired - Fee Related JP3361860B2 (en) | 1993-10-29 | 1993-10-29 | Connecting device for bellows tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3361860B2 (en) |
-
1993
- 1993-10-29 JP JP29448793A patent/JP3361860B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07127778A (en) | 1995-05-16 |
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