JP2003090435A - Adjustable joint and method for installing o-ring therein - Google Patents
Adjustable joint and method for installing o-ring thereinInfo
- Publication number
- JP2003090435A JP2003090435A JP2001279946A JP2001279946A JP2003090435A JP 2003090435 A JP2003090435 A JP 2003090435A JP 2001279946 A JP2001279946 A JP 2001279946A JP 2001279946 A JP2001279946 A JP 2001279946A JP 2003090435 A JP2003090435 A JP 2003090435A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- joint
- press
- universal joint
- fitting
- 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.)
- Pending
Links
Landscapes
- Joints Allowing Movement (AREA)
- Gasket Seals (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、流体を搬送する配
管継ぎ手において、Oリングを用いて、2つの別部品を
接続する自在継ぎ手及びこの継ぎ手のOリング装着方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a universal joint for connecting two separate parts using an O-ring in a pipe joint for conveying a fluid, and an O-ring mounting method for the joint.
【0002】[0002]
【従来の技術】従来のこの種のダイカスト成型による自
在継ぎ手は図5に示すように環状外形部の先端に2つの
凸形状のリング部4,6に挟まれた凹部をOリング溝3
として一体構成し、図6に示すように環状形状の中心を
通るパーティングライン15で左右に分割する構成の金
型で成形されるように構成されている。2. Description of the Related Art A conventional universal joint by this type of die casting is, as shown in FIG. 5, an O-ring groove 3 having a concave portion sandwiched between two convex ring portions 4 and 6 at the tip of an annular outer shape portion.
Is integrally formed as shown in FIG. 6, and is formed by a mold having a parting line 15 that passes through the center of the annular shape and is divided into left and right parts.
【0003】そして上記Oリング溝3の凹部の底面は、
金型のパーティングライン15が軸の長手方向になるた
め、バリが残るように構成されていた。従って、成型加
工後は、凹部のOリング溝3については、後加工の切削
でバリ取りするようになっていた。The bottom surface of the recess of the O-ring groove 3 is
Since the parting line 15 of the mold is located in the longitudinal direction of the shaft, the burr remains. Therefore, after the molding process, the O-ring groove 3 in the recess is deburred by the post-processing cutting.
【0004】[0004]
【発明が解決しようとする課題】しかしながら上記従来
の自在継ぎ手では、Oリング挿入部のOリング溝3を成
型加工後、再度、後加工でバリ取りし、Oリング7のシ
ール面の確保が必要というという課題があった。また、
Oリング7を凹部のOリング溝3に装着するためには、
Oリング7の内径を、Oリング装着部を構成する外側の
凸形状リング部6の外径を乗り越えて挿入しなければな
らず、挿入時Oリング7に傷が生じないように、注意し
ながら作業しなければならないという課題もあった。However, in the above-mentioned conventional universal joint, it is necessary to secure the sealing surface of the O-ring 7 by deburring again after the O-ring groove 3 of the O-ring insertion portion is molded and processed. There was a problem called. Also,
To mount the O-ring 7 in the O-ring groove 3 of the recess,
The inner diameter of the O-ring 7 must be inserted over the outer diameter of the outer convex ring portion 6 that constitutes the O-ring mounting portion, and care must be taken not to damage the O-ring 7 during insertion. There was also the problem of having to work.
【0005】[0005]
【課題を解決するための手段】本発明は上記課題を解決
するため、自在継ぎ手のOリング挿入部にあたる凹部の
Oリング溝を、それぞれ1つの凸形状リング部を持つ2
つの部品に分け、その2つの部品を組み合わせることに
より構成したものである。According to the present invention, in order to solve the above-mentioned problems, the O-ring groove of the concave portion corresponding to the O-ring insertion portion of the universal joint has two convex ring portions.
It is configured by dividing it into one part and combining the two parts.
【0006】上記発明によれば、Oリング装着時にOリ
ング7の内径側のシール面を構成する部分は、単純な筒
型になるため、例えばダイカスト成型金型では、流体を
搬送する内径部と同様、長手方向の抜き構成で成形する
ことが出来るため、Oリング7のシール面となる部分に
は金型のパーティングライン15を無くすことができ
る。According to the above-mentioned invention, since the portion forming the sealing surface on the inner diameter side of the O-ring 7 when the O-ring is mounted is a simple cylindrical shape, for example, in a die casting mold, the inner diameter portion for conveying the fluid is used. Similarly, since the molding can be performed by the punching configuration in the longitudinal direction, the parting line 15 of the mold can be eliminated in the portion which becomes the sealing surface of the O-ring 7.
【0007】[0007]
【発明の実施の形態】本発明の請求項1に係る自在継ぎ
手は、Oリングの装着部となる凹部分のOリング溝を、
それぞれ1つの凸形状リング部を持つ2つの構成部品を
圧入し、一体構成することにより構成する。そして、O
リングが装着されたとき、その内径部でシール面となる
側は、ダイカスト成型時に抜き加工面で成型することが
できるため、従来、シール面になる部分にパーティング
ラインとして出来ていたバリを無くすことが出来るた
め、成形後の後加工も無くすことができる。BEST MODE FOR CARRYING OUT THE INVENTION A universal joint according to claim 1 of the present invention is provided with an O-ring groove corresponding to a concave portion which serves as an O-ring mounting portion.
It is configured by press-fitting two component parts each having one convex ring portion to integrally configure. And O
When the ring is mounted, the side that becomes the sealing surface at the inner diameter can be molded by the punching surface during die casting, so there is no burr that was conventionally formed as a parting line at the sealing surface. Therefore, post-processing after molding can be eliminated.
【0008】本発明の請求項2に係る自在継ぎ手は、請
求項1の2つに分割した部品のうち、圧入部品となる一
方の部品を金属絞り成型品とし、その底面部に、多数の
メッシュ状の細孔を有する。そして、この多数のメッシ
ュ状の細孔13が、継ぎ手および継ぎ手本体の内径部を
搬送される流体のフィルターの作用をすることができ
る。In the universal joint according to claim 2 of the present invention, one of the two parts of claim 1 which is a press-fitted part is a metal draw-molded product, and a large number of meshes are formed on the bottom surface thereof. Have pores. The large number of mesh-shaped pores 13 can act as a filter for the fluid carried in the joint and the inner diameter of the joint body.
【0009】本発明の請求項3は、請求項1および2に
記載の自在継ぎ手の製造方法に関するものである。自在
継ぎ手部のOリング装着部の凹部分が、独立した2部品
で構成されるため、従来のOリング装着製造方法とは異
なり、まずOリングを片一方のOリング装着部の凹部分
となる側に挿入した後、Oリング装着部の外側の凸形状
リング部に相当する圧入部品を挿入することにより、初
めてOリングが所定の凹部のOリング溝に相当した部分
に収まるよう、新たな製造方法でOリングを装着するこ
とができる。A third aspect of the present invention relates to a method for manufacturing the universal joint according to the first and second aspects. Since the recessed portion of the O-ring mounting portion of the universal joint portion is composed of two independent parts, unlike the conventional O-ring mounting manufacturing method, first, the O-ring is the recessed portion of one of the O-ring mounting portions. After the insertion to the side, by inserting a press-fitting part corresponding to the convex ring part on the outside of the O-ring mounting part, a new manufacturing process is performed so that the O-ring fits into the part corresponding to the O-ring groove of the predetermined recess for the first time. The O-ring can be attached by the method.
【0010】[0010]
【実施例】以下、本発明の実施例について図面を用いて
説明する。Embodiments of the present invention will be described below with reference to the drawings.
【0011】(実施例1)図1は本発明の実施例1の自
在継ぎ手部を示す断面図である。(First Embodiment) FIG. 1 is a sectional view showing a universal joint portion according to a first embodiment of the present invention.
【0012】次に動作、作用について説明すると、内径
部1をガスなどの流体を搬送する通路とした継ぎ手2の
一端外形部に、Oリング溝3を構成するひとつの凸形状
リング部4が形成されている。その端部には、圧入部品
5が、継ぎ手2の内径部1に圧入されており、その外形
の一部が、Oリング溝3を構成するもうひとつの凸形状
リング部6を構成している。従って、凸形状リング部
4,6により、Oリング溝3が構成され、当該Oリング
溝3にはシールのためのOリング7が装着されている。
Oリング7を装着された継ぎ手2は、接続する第2の内
径部8を有する継ぎ手本体9の勘合用凹部10に挿入さ
れた後、固定金具11を介して固定用ねじ12にて、固
定される。従って、継ぎ手2と継ぎ手本体9のそれぞれ
の内径部1、内径部8は自動的に連通され、かつ接続部
はOリング7を介して完全シールされる。また、固定金
具11により、当該継ぎ手部が抜けるのを防止してい
る。Next, the operation and action will be described. One convex ring portion 4 forming an O-ring groove 3 is formed in the outer shape at one end of the joint 2 in which the inner diameter portion 1 is used as a passage for conveying a fluid such as gas. Has been done. A press-fitting component 5 is press-fitted into the inner diameter portion 1 of the joint 2 at the end portion thereof, and a part of the outer shape thereof constitutes another convex ring portion 6 constituting the O-ring groove 3. . Therefore, the O-ring groove 3 is formed by the convex ring portions 4 and 6, and the O-ring 7 for sealing is attached to the O-ring groove 3.
The joint 2 fitted with the O-ring 7 is inserted into the fitting recess 10 of the joint body 9 having the second inner diameter portion 8 to be connected, and then fixed by the fixing screw 12 via the fixing metal fitting 11. It Therefore, the inner diameter portion 1 and the inner diameter portion 8 of the joint 2 and the joint body 9 are automatically communicated with each other, and the connection portion is completely sealed via the O-ring 7. Further, the fixing metal fitting 11 prevents the joint portion from coming off.
【0013】(実施例2)図2は本発明の請求項2に対
応する実施例2の自在継ぎ手を示す断面図であり、図3
はその継ぎ手を構成する圧入部品5Aの正面図である。(Embodiment 2) FIG. 2 is a sectional view showing a universal joint of embodiment 2 corresponding to claim 2 of the present invention.
[Fig. 3] is a front view of a press-fitting component 5A that constitutes the joint.
【0014】本実施例2において、実施例1と異なる点
は図3で示す如く、圧入部品5Aの底面には多数のメッ
シュ状の細孔13が加工されている。The second embodiment differs from the first embodiment in that, as shown in FIG. 3, a large number of mesh-shaped pores 13 are formed on the bottom surface of the press-fitting part 5A.
【0015】なお、実施例1と同一符号のものは同一構
造を有し、説明は省略する。The same reference numerals as those of the first embodiment have the same structure, and the description thereof will be omitted.
【0016】次に動作、作用を説明すると、圧入部品5
Aに加工を施された多数の細孔13は、継ぎ手2、継ぎ
手本体9の内径部2、第2内径部9を搬送される流体な
どに混入したゴミなどを他方の内径部に流入防止するた
めのフィルターの役目をする。The operation and action of the press-fitting component 5 will be described below.
The large number of pores 13 processed into A prevent the dust mixed in the fluid conveyed through the joint 2, the inner diameter portion 2 of the joint body 9 and the second inner diameter portion 9 from flowing into the other inner diameter portion. Acts as a filter for.
【0017】(実施例3)図4(a)、(b)、(c)
は本発明の請求項1または2記載の自在継ぎ手の製造方
法の手順を示す断面図である。従来の図7で示す実施例
の製造方法と異なる点は、本発明の製造方法はまず図4
(a)に示す通り、継ぎ手2とOリング7と圧入部品5
または5Aを同一加工中心線14上にセットする。その
後、図4(b)で示す様にOリング7をまず最初に継ぎ
手2の所定の位置まで挿入する。Oリング7の内径と継
ぎ手2の外径は、Oリングによるシールが確保される寸
法関係であり、従来の様にOリングの内径を一旦、凸形
状リング部の外形まで大きく無理に拡大して挿入する必
要がない。Oリング7を継ぎ手2の所定の位置にセット
後、図4(c)で示す様に、圧入部品5または5Aを継
ぎ手2の内径部1に圧入する。圧入加工が終了すると、
Oリング7は従来と同様Oリング溝3に確実に装着され
た状態に製造され、その後は、従来と同様に図1または
図2で示すように、継ぎ手本体9に挿入されて、自在継
ぎ手として完成する。(Embodiment 3) FIGS. 4A, 4B and 4C.
FIG. 6 is a cross-sectional view showing a procedure of a method for manufacturing a universal joint according to claim 1 or 2 of the present invention. The manufacturing method of the present invention is different from the manufacturing method of the conventional embodiment shown in FIG.
As shown in (a), the joint 2, the O-ring 7, and the press-fitting part 5
Alternatively, 5A is set on the same processing center line 14. Then, as shown in FIG. 4B, the O-ring 7 is first inserted to a predetermined position of the joint 2. The inner diameter of the O-ring 7 and the outer diameter of the joint 2 have a dimensional relationship that ensures a seal by the O-ring, and the inner diameter of the O-ring is temporarily enlarged to the outer shape of the convex ring portion as in the conventional case. No need to insert. After setting the O-ring 7 at a predetermined position of the joint 2, the press-fitting component 5 or 5A is press-fitted into the inner diameter portion 1 of the joint 2 as shown in FIG. When press-fitting is finished,
The O-ring 7 is manufactured in a state where it is securely mounted in the O-ring groove 3 as in the conventional case, and thereafter, as in the conventional case, it is inserted in the joint body 9 as shown in FIG. Complete.
【0018】なお、実施例1と同一符号のものは同一構
造を有し、説明は省略する。The same reference numerals as those in the first embodiment have the same structure, and the description thereof will be omitted.
【0019】次に動作、作用を説明すると、Oリングに
よるシール方法において、一番品質的に重要な、加工製
造時のOリングへの傷防止の施策を施した、製造方法と
なる。The operation and action will be described below. In the sealing method using an O-ring, the manufacturing method is one in which measures for preventing scratches on the O-ring at the time of processing and manufacturing are taken, which are the most important in terms of quality.
【0020】[0020]
【発明の効果】以上説明したように本発明の請求項1に
係る自在継ぎ手は、Oリングによるシール面の後加工を
無くすことが出来、加工コストを削減する効果がある。As described above, the universal joint according to the first aspect of the present invention can eliminate the post-processing of the sealing surface by the O-ring and has an effect of reducing the processing cost.
【0021】また、請求項2に係る自在継ぎ手について
も流体を搬送する内部通路内に安価で、加工が簡単な方
法でフィルターに該当する構成部品を設けることができ
るという効果がある。Further, the universal joint according to the second aspect also has an effect that the component corresponding to the filter can be provided in the internal passage for conveying the fluid by a cheap and easy method.
【0022】また、請求項3に係るOリングの装着方法
に関する当該請求項1または2の自在継ぎ手は、製造工
程でのOリング部の傷によるシール部の流体の漏れ防止
の効果がある。Further, the universal joint according to claim 1 or 2 relating to the method of mounting the O-ring according to claim 3 has an effect of preventing fluid leakage from the seal portion due to scratches on the O-ring portion in the manufacturing process.
【図1】本発明の実施例1における自在継ぎ手の断面図FIG. 1 is a sectional view of a universal joint according to a first embodiment of the present invention.
【図2】本発明の実施例2における自在継ぎ手の断面図FIG. 2 is a sectional view of a universal joint according to a second embodiment of the present invention.
【図3】同自在継ぎ手を構成する圧入部品の正面図FIG. 3 is a front view of a press-fitting component forming the universal joint.
【図4】(a)本発明の実施例3におけるOリング装着
前の状態を示す分解図
(b)同Oリング装着後の半状態を示す分解図
(c)圧入部品が継ぎ手に圧入され完成状態を示す側断
面図FIG. 4A is an exploded view showing a state before mounting an O-ring in the third embodiment of the present invention. FIG. 4B is an exploded view showing a half state after mounting the O-ring. Side sectional view showing the state
【図5】従来の自在継ぎ手の形成状態を示す断面図FIG. 5 is a sectional view showing a state in which a conventional universal joint is formed.
【図6】従来の継ぎ手の正面及び側面図FIG. 6 is a front and side view of a conventional joint.
1 内径部 2 継ぎ手 3 Oリング溝 4 凸形状リング部 5 圧入部品 6 凸形状リング部 7 Oリング 8 内径部 9 継ぎ手本体 10 嵌合用凹部 13 細孔 1 Inner diameter 2 joints 3 O-ring groove 4 Convex ring part 5 Press-fit parts 6 Convex ring part 7 O-ring 8 Inner diameter 9 joint body 10 Fitting recess 13 pores
フロントページの続き Fターム(参考) 3H016 AD15 AE00 3H104 JA04 JB02 JC10 JD09 KB03 KB08 KB10 LF03 MA10 3J040 AA01 AA13 AA15 AA17 BA02 FA05 HA03 HA05 HA30 Continued front page F-term (reference) 3H016 AD15 AE00 3H104 JA04 JB02 JC10 JD09 KB03 KB08 KB10 LF03 MA10 3J040 AA01 AA13 AA15 AA17 BA02 FA05 HA03 HA05 HA30
Claims (3)
ング部に挟まれて出来る凹部をOリング挿入部として形
成した自在継ぎ手であって、前記継ぎ手の先端側の前記
凸形状リング部は独立した圧入別部品として成型した
後、前記Oリング挿入部の凹部を形成するもう一方の凸
形状リング部を有する前記継ぎ手の先端内径部に前記圧
入部品を圧入した自在継ぎ手。1. A universal joint in which a recess formed by being sandwiched between two convex ring portions is formed in an annular outer shape portion of the joint as an O-ring insertion portion, wherein the convex ring portion on the tip side of the joint is A universal joint in which the press-fitted component is press-fitted into the inner diameter of the tip of the joint having another convex ring portion that forms the recessed portion of the O-ring insertion portion after being molded as an independent press-fitted separate component.
の底面に多数の細孔をメッシュ状に設けた請求項1記載
の自在継ぎ手。2. The universal joint according to claim 1, wherein the press-fitting part is a metal draw-molded product, and a large number of pores are provided in a mesh shape on the bottom surface thereof.
する際は、Oリング挿入部の凹部を形成する継ぎ手のO
リング溝に、Oリングを挿入した後、外側の凸部形状リ
ング部を有する圧入部品を圧入する手順によって行われ
る請求項1または2記載の自在継ぎ手にOリングを装着
する方法。3. When inserting the O-ring into the recess of the O-ring insertion part, the O of the joint forming the recess of the O-ring insertion part is inserted.
The method for mounting an O-ring on a universal joint according to claim 1 or 2, which is carried out by a procedure of press-fitting a press-fitting component having an outer convex ring portion after inserting the O-ring into the ring groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2001279946A JP2003090435A (en) | 2001-09-14 | 2001-09-14 | Adjustable joint and method for installing o-ring therein |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001279946A JP2003090435A (en) | 2001-09-14 | 2001-09-14 | Adjustable joint and method for installing o-ring therein |
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Publication Number | Publication Date |
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JP2003090435A true JP2003090435A (en) | 2003-03-28 |
Family
ID=19104036
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JP2001279946A Pending JP2003090435A (en) | 2001-09-14 | 2001-09-14 | Adjustable joint and method for installing o-ring therein |
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JPH0674379A (en) * | 1992-06-25 | 1994-03-15 | Fujii Gokin Seisakusho:Kk | Universal joint |
JPH07243563A (en) * | 1994-03-02 | 1995-09-19 | Showa Tansan Kk | Joint for high pressure gas |
JPH08247375A (en) * | 1995-03-08 | 1996-09-27 | Sekisui Chem Co Ltd | Pipe end cap |
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JPS6246096A (en) * | 1985-08-22 | 1987-02-27 | 日新電機株式会社 | Center ring with o ring for clamp coupling |
JPS6246896A (en) * | 1985-08-24 | 1987-02-28 | 岩立 光雄 | Jib crane |
JPH0674379A (en) * | 1992-06-25 | 1994-03-15 | Fujii Gokin Seisakusho:Kk | Universal joint |
JPH07243563A (en) * | 1994-03-02 | 1995-09-19 | Showa Tansan Kk | Joint for high pressure gas |
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