JP2769763B2 - Quick connector - Google Patents
Quick connectorInfo
- Publication number
- JP2769763B2 JP2769763B2 JP5012474A JP1247493A JP2769763B2 JP 2769763 B2 JP2769763 B2 JP 2769763B2 JP 5012474 A JP5012474 A JP 5012474A JP 1247493 A JP1247493 A JP 1247493A JP 2769763 B2 JP2769763 B2 JP 2769763B2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- shaped
- diameter
- locking member
- female member
- 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
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明はガソリン、オイル、水及
びエアなどの流体を移送するホースやパイプ等を連結す
るための配管用の雄部材と雌部材を有するクイックコネ
クタに関し、特に係止部材の構造が簡単なクイックコネ
クタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quick connector having a male member and a female member for connecting a hose or a pipe for transferring fluids such as gasoline, oil, water and air, and more particularly to a locking member. The present invention relates to a quick connector having a simple structure.
【0002】[0002]
【従来の技術】クイックコネクタとして、図11及び図
12に示すように、受孔101と壁部に開口された保持
口102、105(それぞれ2個一対)とをもつ受筒部
103を軸方向一端に有する雌部材100と、遠心方向
に突出しかつテーパ面201を備えたリング状突部20
2と嵌合筒部203とを有する雄部材200と、両端部
301が対向するように中央部302で曲げられたU字
形状の係止部材300とからなるものが知られている
(特開昭58−225290号公報)。2. Description of the Related Art As a quick connector, as shown in FIGS. 11 and 12, a receiving cylinder portion 103 having a receiving hole 101 and holding holes 102 and 105 (two pairs each) opened in a wall portion is provided in an axial direction. A female member 100 at one end and a ring-shaped projection 20 projecting in the centrifugal direction and having a tapered surface 201
2 and a male member 200 having a fitting cylindrical portion 203 and a U-shaped locking member 300 bent at a central portion 302 such that both end portions 301 face each other. 58-225290).
【0003】上記したクイックコネクタを使用するに際
しては、係止部材300の両端部301を保持口10
2、105に挿入し、係止部材300を雌部材100に
保持した状態で、雄部材200の嵌合筒部203を受孔
101に挿入する。雄部材200は、リング状突部20
2のテーパ面201で係止部材300の両端部301を
弾性変形により押し広げつつ進入する。そして、雄部材
200のリング状突部202が係止部材300を越える
と、弾性回復した係止部材300の両端部301と係止
突部202とが係止する。このようにして雌部材100
と雄部材200とが連結される。When using the above-described quick connector, both ends 301 of the locking member 300 are held in the holding opening 10.
2 and 105, the fitting member 203 of the male member 200 is inserted into the receiving hole 101 with the locking member 300 held by the female member 100. The male member 200 includes the ring-shaped protrusion 20.
Both ends 301 of the locking member 300 are pushed and spread by elastic deformation by the second tapered surface 201 to enter. Then, when the ring-shaped protrusion 202 of the male member 200 exceeds the locking member 300, both ends 301 of the elastically recovered locking member 300 and the locking protrusion 202 are locked. Thus, the female member 100
And the male member 200 are connected.
【0004】ところが、上記従来のクイックコネクタ
は、図12からもわかるように、雌部材100と雄部材
200とを連結した状態で、係止部材300の中央部3
02が保持口102から外方に突出し、また係止部材3
00の両端部301の先端部301aが保持口105か
ら外方に突出する。このため、使用の際に、係止部材3
00の中央部302及び両端部301の先端部301a
が他の部材に干渉、衝突し、その衝撃により係止部材3
00が外れるおそれがある。However, as shown in FIG. 12, the conventional quick connector has a central part 3 of a locking member 300 in which the female member 100 and the male member 200 are connected.
02 protrudes outward from the holding port 102 and the locking member 3
The end portions 301 a of the both end portions 301 of the “00” project outward from the holding port 105. Therefore, when used, the locking member 3
00 at the center 302 and at the ends 301a at both ends 301
Interferes and collides with another member, and the impact causes the locking member 3
00 may come off.
【0005】そこで本出願人は、Cリング形状の係止部
材を雌部材内に収納した方式のクイックコネクタを開発
し、先に出願した(特願平2−109419号)。この
クイックコネクタは、図13〜図16に示すように、軸
方向一端に受入開口401cをもつ開口フランジ401
とリング状凹部402とを備えた筒状をなす雌部材40
0と、遠心方向に突出したリング状突部501と嵌合筒
部502とをもつ筒状をなす雄部材500と、雌部材4
00の受筒部402内に保持されたCリング形状の係止
部材600とで構成されている。Therefore, the present applicant has developed a quick connector of a type in which a C-ring-shaped locking member is housed in a female member, and filed an application earlier (Japanese Patent Application No. 2-109419). As shown in FIGS. 13 to 16, the quick connector has an opening flange 401 having a receiving opening 401c at one end in the axial direction.
Cylindrical female member 40 provided with a ring-shaped recess 402
0, a cylindrical male member 500 having a ring-shaped protrusion 501 protruding in the centrifugal direction and a fitting cylindrical portion 502;
00 and a C-ring-shaped engaging member 600 held in the receiving cylinder portion 402 of the second embodiment.
【0006】上記係止部材600は弾性薄板バネ部材よ
りなり、図15及び図16に示すように、雌部材400
の奥方に向かうに連れて小径となり、中央の係合突起6
07から分かれてリング状凹部402内で拡径可能な相
対向する一対の弧状テーパ壁603、604をもち、断
面がほぼC形状をなしている。係止部材600の大径端
605は、雌部材400の開口フランジ401の内径よ
り大きな内径(D1)をもって該開口フランジ401の
内側端面に対向している。また、径部材600の小径端
606は、雄部材500のリング状突部501の外径よ
り小さな内径(D2)をもち、該リング状突部501と
係合している。また、係止部材600は、弧状テーパ壁
603、604の自由端にそれぞれ係合突起601、6
02が形成されている。そして、この係止部材600、
係合突起601、602を互いに近づけて縮径し、雌部
材400の開口フランジ401に形成された一方の切欠
401aに係合突起601、602を通すと共に、開口
フランジ401に形成された他方の切欠401bに係合
突起607を通すことにより、雌部材400のリング状
凹部402内に挿入される。これにより、係止部材60
0は自身の弾性力でリング状凹部402内で元の径に復
元し、ほぼ同軸的に装着される。The locking member 600 is made of an elastic thin plate spring member, and as shown in FIGS.
The diameter becomes smaller toward the back of
07, a pair of arc-shaped tapered walls 603 and 604 which can be expanded in the ring-shaped concave portion 402 and have a cross section substantially C-shaped. The large-diameter end 605 of the locking member 600 faces the inner end surface of the opening flange 401 with an inner diameter (D1) larger than the inner diameter of the opening flange 401 of the female member 400. The small-diameter end 606 of the diameter member 600 has an inner diameter (D2) smaller than the outer diameter of the ring-shaped protrusion 501 of the male member 500, and is engaged with the ring-shaped protrusion 501. In addition, the locking member 600 has engagement protrusions 601 and 6 on free ends of the arc-shaped tapered walls 603 and 604, respectively.
02 is formed. And this locking member 600,
The engagement protrusions 601 and 602 are brought closer to each other to reduce the diameter, and the engagement protrusions 601 and 602 are passed through one notch 401 a formed in the opening flange 401 of the female member 400, and the other notch formed in the opening flange 401. By passing the engagement protrusion 607 through the 401b, the female member 400 is inserted into the ring-shaped recess 402. Thereby, the locking member 60
0 is restored to its original diameter in the ring-shaped concave portion 402 by its own elastic force, and is mounted substantially coaxially.
【0007】このコネクタでは、雌部材400のリング
状凹部402内に係止部材600を収納した状態で、雄
部材500の嵌合筒部502を雌部材400に挿入すれ
ば、雄部材500のリング状突部501が係止部材60
0のテーパ壁603、604を弾性変形により拡径し、
さらに係止部材600を乗り越える。これにより、弾性
復元した係止部材600の大径端605が雌部材400
の開口フランジ401の内側端面に対向するとともに、
小径側の他端606が雄部材500のリング状突部50
1と係合して、雌部材400と雄部材500とが連結さ
れる。In this connector, when the fitting cylinder portion 502 of the male member 500 is inserted into the female member 400 with the locking member 600 housed in the ring-shaped concave portion 402 of the female member 400, the ring of the male member 500 The protrusion 501 is the locking member 60
0 tapered walls 603 and 604 are expanded by elastic deformation,
Further, the user gets over the locking member 600. As a result, the large-diameter end 605 of the elastically restored locking member 600 is
While facing the inner end surface of the opening flange 401 of
The other end 606 on the small diameter side is the ring-shaped projection 50 of the male member 500.
1 and the female member 400 and the male member 500 are connected.
【0008】[0008]
【発明が解決しようとする課題】ところで、上記特願平
2−109419号のクイックコネクタにおいては、上
記係止部材600の係合突起601、602、607が
リング状凹部402の内周面に適度に係合することによ
り、係止部材600とリング状凹部402との同心性を
高めている。これにより、雄部材500を挿入する際に
リング状突部501が係止部材600のテーパ壁60
3、604に確実に当たるようにして、係止部材600
の拡径性を確保し、ひいては雌部材400に対する雄部
材500の挿入作業性を高めている。In the quick connector disclosed in Japanese Patent Application No. 2-109419, the engaging projections 601, 602, 607 of the locking member 600 are suitably formed on the inner peripheral surface of the ring-shaped recess 402. , The concentricity between the locking member 600 and the ring-shaped recess 402 is enhanced. Accordingly, when the male member 500 is inserted, the ring-shaped protrusion 501 is fixed to the tapered wall 60 of the locking member 600.
3 and 604 so that the locking member 600
And the workability of inserting the male member 500 into the female member 400 is enhanced.
【0009】しかしながら、係止部材600の係合突起
601、602、607がC形状の大径端部605の外
周よりも外方に突出しているので、実質的な縮径効果は
小さく、係止部材600を縮径させたとき依然としてこ
っらの係合突起601、602、607が外方に突出し
ている。このため、図14からも明らかなように、係止
部材600を雌部材400の開口フランジ401から挿
入させるためには、係合突起601、602、607を
通すための切欠401a、401bを雌部材400の開
口フランジ401に形成する必要がある。したがって、
係止部材600を雌部材400の開口フランジ401か
ら挿入する際には、係止部材600の係合突起601、
602及び607をこの切欠401a、401bに整合
させる必要があり、その作業が面倒となる。また、製造
コストの増大にもつながる。However, since the engaging projections 601, 602, and 607 of the locking member 600 protrude outward from the outer periphery of the C-shaped large-diameter end portion 605, the effect of substantially reducing the diameter is small. When the diameter of the member 600 is reduced, the engagement protrusions 601, 602, and 607 still protrude outward. Therefore, as is apparent from FIG. 14, in order to insert the locking member 600 from the opening flange 401 of the female member 400, the notches 401a and 401b for passing the engagement protrusions 601, 602, and 607 are provided. It is necessary to form the opening flange 401 at 400. Therefore,
When the locking member 600 is inserted from the opening flange 401 of the female member 400, the engagement protrusion 601 of the locking member 600,
It is necessary to align 602 and 607 with these notches 401a and 401b, and the work becomes troublesome. In addition, it leads to an increase in manufacturing cost.
【0010】さらに、係止部材600の係合突起60
1、602、607と雌部材400のリング状凹部40
2の内周面との間には依然として隙間が存在しており、
その分雌部材400と係止部材600との同心性が低下
している。このため、係止部材600は雄部材500の
リング状突部501により拡径される際に径方向にずれ
たりして、雌部材400に対する雄部材500の挿入作
業性が充分に満足できるものとは言えなかった。Further, the engaging projection 60 of the locking member 600
1, 602, 607 and ring-shaped recess 40 of female member 400
There is still a gap between the inner peripheral surface of No. 2 and
The concentricity between the female member 400 and the locking member 600 is reduced accordingly. For this reason, the locking member 600 shifts in the radial direction when the diameter is expanded by the ring-shaped protrusion 501 of the male member 500, and the workability of inserting the male member 500 into the female member 400 can be sufficiently satisfied. I couldn't say.
【0011】本発明は上記実情に鑑みてなされたもので
あり、係止部材の外れの問題を解消でき、かつ雌部材に
対する雄部材の挿入作業性を充分に向上させることがで
きることは勿論のこと、係止部材の縮径効果を高めるこ
とにより、雌部材の開口フランジに切欠を施さなくても
係止部材の縮径により該開口フランジから自在に挿入す
ることを可能とし、しかも製造コストも低減することの
できるクイックコネクタを提供することを目的とする。The present invention has been made in view of the above circumstances, and it is needless to say that the problem of disengagement of the locking member can be solved and the workability of inserting the male member into the female member can be sufficiently improved. By increasing the diameter-reducing effect of the locking member, the female member can be freely inserted from the opening flange by reducing the diameter of the locking member without making a notch in the opening flange of the female member, and the manufacturing cost is reduced. It is an object of the present invention to provide a quick connector that can be used.
【0012】[0012]
【課題を解決するための手段】本発明のクイックコネク
タは、軸方向一端に求心方向に延びる開口フランジと、
該開口フランジの内方に該開口フランジと隣接して設け
られた該開口フランジの開口径より内径の大きいリング
状凹部とをもつ筒状の雌部材と、先端から所定の距離位
置に遠心方向に突出したリング状突部をもち、該開口フ
ランジから該リング状凹部に挿入される筒状をなす雄部
材と、該雌部材の該リング状凹部内に保持されて該リン
グ状凹部に挿入された該雄部材を該雌部材に連結するバ
ネ弾性を有する係止部材とを備え、該係止部材は、前記
雌部材の前記開口フランジの内側面に対向するとともに
前記リング状凹部の内周面に当接し、前記開口フランジ
の内径よりも大きく、かつ、前記リング状凹部の内径に
略等しい外径を有するCリング状大径端部と、該Cリン
グ状大径端部から前記雌部材の内方に向かうに連れて該
Cリング状大径端部と同軸的に小径となり、その小径側
の端部が前記雄部材のリング状突部の外径よりも小さい
内径を有して該リング状突部と係止する周方向に分散配
置された複数のテーパ壁部と、該Cリング状大径端部か
ら該小径側の端部に向かって軸と平行に延び、該Cリン
グ状大径端部の外径と略同径の前記リング状凹部の内周
面に少なくとも周方向の両端部が当接する頂面壁部と、
該頂面壁部の周方向の両端部から曲げられて互いに略平
行に延び各該テーパ壁部のそれぞれの周方向の一方側の
端縁部に結合された一対の接続壁部とからなり、該Cリ
ング状大径端部から該テーパ壁部の小径側の端部に向か
って延在して各該テーパ壁部を連結する少なくとも一つ
の連結部と、該Cリング状大径端部の周方向の両端部か
ら該テーパ壁部の小径側の端部に向かって延在して該テ
ーパ壁部の周方向の端縁部に結合され、該Cリング状大
径端部から該小径側の端部に向かって軸と平行に延び、
該Cリング状大径端部の外径と略同径の前記リング状凹
部の内周面に当接する端縁当接部をもつ一対の先端壁部
とから構成されていることを特徴とするものである。SUMMARY OF THE INVENTION A quick connector according to the present invention includes an opening flange extending in a centripetal direction at one axial end;
A cylindrical female member having a ring-shaped recess having an inner diameter larger than the opening diameter of the opening flange provided adjacent to the opening flange inside the opening flange; and a centrifugal direction at a predetermined distance from the tip. A cylindrical male member having a protruding ring-shaped protrusion and inserted into the ring-shaped recess from the opening flange; and a cylindrical member held in the ring-shaped recess of the female member and inserted into the ring-shaped recess. A locking member having spring elasticity for connecting the male member to the female member, wherein the locking member faces an inner surface of the opening flange of the female member and is provided on an inner peripheral surface of the ring-shaped recess. A C-ring-shaped large-diameter end portion having an outer diameter larger than the inner diameter of the opening flange and being substantially equal to the inner diameter of the ring-shaped concave portion; The C-ring-shaped large-diameter end moves toward The male member has an inner diameter smaller than the outer diameter of the ring-shaped protrusion of the male member, and has a smaller diameter than the outer diameter of the ring-shaped protrusion. And the ring-shaped recess extending substantially parallel to the axis from the C-ring-shaped large-diameter end toward the small-diameter end, and having substantially the same outer diameter as the C-ring-shaped large-diameter end. A top wall portion at least both circumferential ends of which abut against the inner peripheral surface of the
A pair of connecting wall portions that are bent from both circumferential ends of the top wall portion and extend substantially parallel to each other, and are connected to one circumferential edge of each of the tapered wall portions; At least one connecting portion extending from the C-ring-shaped large-diameter end portion to the end on the smaller-diameter side of the tapered wall portion and connecting each of the tapered wall portions; Extending from both ends in the direction toward the small-diameter end of the tapered wall, and coupled to the circumferential edge of the tapered wall, from the C-ring-shaped large-diameter end to the small-diameter side. Extends parallel to the axis towards the end,
The C-shaped large-diameter end portion has a pair of end wall portions having an edge contact portion that is in contact with an inner peripheral surface of the ring-shaped concave portion having substantially the same diameter as the outer diameter of the large-diameter end portion. Things.
【0013】[0013]
【作用】本発明のクイックコネクタに係る係止部材は、
前述の従来のクイックコネクタに係るC形状の係止部材
のように周方向外方に突出する係合突起がないので、実
質的な縮径効果が大きくなる。このため、雌部材の開口
フランジに切欠を施さなくても係止部材の縮径により該
開口フランジから自在に挿入することが可能となる。The locking member according to the quick connector of the present invention comprises:
Since there is no engaging projection that protrudes outward in the circumferential direction unlike the above-described C-shaped locking member of the conventional quick connector, a substantial diameter reduction effect is increased. For this reason, even if the opening flange of the female member is not notched, the female member can be freely inserted from the opening flange by reducing the diameter of the locking member.
【0014】また、本発明のクイックコネクタのその他
の作用をその使用方法とともに説明する。先ず、雌部材
のリング状凹部内に係止部材を収納保持した状態で、雄
部材を雌部材の開口フランジからリング状凹部内に相対
的に挿入して、雄部材のリング状突部を係止部材のテー
パ壁部の内面に押し当て、テーパ壁部の小径側端部が径
外方向に反るように弾性変形する。このとき、係止部材
のCリング状大径端部、連結部の頂面壁部の少なくとも
周方向の両端部及び一対の先端壁部の端縁当接部が雌部
材のリング状凹部の内周面に当接しており、係止部材は
雌部材のリング状凹部内に同心状に確実に保持されてい
る。このため、係止部材のテーパ壁部が雄部材のリング
状突部により弾性変形される際、係止部材が径方向にず
れることがないので、雌部材に対する雄部材の挿入作業
性は極めて良好なものとなる。Further, other functions of the quick connector of the present invention will be described together with a method of using the quick connector. First, with the locking member housed and held in the ring-shaped recess of the female member, the male member is relatively inserted into the ring-shaped recess from the opening flange of the female member, and the ring-shaped projection of the male member is engaged. The stopper member is pressed against the inner surface of the tapered wall portion, and is elastically deformed so that the small-diameter side end of the tapered wall portion is warped radially outward. At this time, the C-ring-shaped large-diameter end portion of the locking member, at least both ends in the circumferential direction of the top wall portion of the connecting portion, and the edge contact portions of the pair of tip wall portions are the inner periphery of the ring-shaped concave portion of the female member. The locking member is securely held concentrically in the ring-shaped recess of the female member. Therefore, when the tapered wall portion of the locking member is elastically deformed by the ring-shaped projection of the male member, the locking member does not shift in the radial direction, and the workability of inserting the male member into the female member is extremely good. It becomes something.
【0015】そして、雄部材をさらに挿入すれば、雄部
材のリング状突部は係止部材を越え、係止部材よりも内
方に挿入され、径外方向に弾性変形したテーパ壁部は自
身の弾性力で復元する。これにより、雄部材のリング状
突部と係止部材のテーパ壁部の小径側の端部とが係合さ
れるとともに、雌部材の開口フランジの内側面及びリン
グ状凹部の内周面に係止部材のCリング状大径端部が係
止され、かつ、係止部材の連結部の頂面壁部の少なくと
も周方向の両端部及び一対の先端壁部の端縁当接部がリ
ング状凹部の内周面に当接され、以て雌部材に雄部材は
連結される。Then, when the male member is further inserted, the ring-shaped projection of the male member exceeds the locking member, is inserted inwardly of the locking member, and the tapered wall portion elastically deformed in the radially outward direction is formed by itself. It is restored by the elastic force of. Thus, the ring-shaped protrusion of the male member and the small-diameter end of the tapered wall of the locking member are engaged, and the inner surface of the opening flange of the female member and the inner peripheral surface of the ring-shaped recess are engaged. The C-ring-shaped large-diameter end portion of the stop member is locked, and at least both circumferential end portions of the top wall portion of the connecting portion of the locking member and the edge contact portions of the pair of tip wall portions are ring-shaped concave portions. The male member is connected to the female member.
【0016】この雌部材と雄部材とが連結された状態で
は、両者を連結する係止部材が雌部材のリング状凹部内
に収納されている。このため、係止部材が他の部材と衝
突、干渉することがない。また、雌部材と雄部材の軸方
向の相対移動は、係止部材のテーパ壁部の小径側の端部
と雄部材のリング状突部とが係合されるとともに、係止
部材のCリング状大径端部と雌部材の開口フランジの内
側面とが係止されることにより、確実に規制される。し
かも、係止部材のテーパ壁部の小径側の端部において
は、該テーパ壁部の小径側の端部が、それぞれ雌部材の
リング状凹部の内周面で規制された連結部の接続壁部及
び先端壁部により軸直角方向に挟持されている。このた
め、雌部材及び雄部材間に両者が相互に離れる方向の大
きな軸方向力が作用しても、係止部材は、テーパ壁部の
小径側の端部において、雄部材のリング状突部から軸方
向に作用する力を十分に受け止めることができ、座屈し
たりするようなことはない。When the female member and the male member are connected to each other, a locking member for connecting the female member and the male member is housed in the ring-shaped recess of the female member. Therefore, the locking member does not collide with or interfere with another member. Further, the relative movement of the female member and the male member in the axial direction is such that the small-diameter end of the tapered wall portion of the locking member and the ring-shaped projection of the male member are engaged, and the C ring of the locking member is engaged. The large-diameter end portion and the inner surface of the opening flange of the female member are locked, so that it is reliably regulated. In addition, at the small-diameter end of the tapered wall portion of the locking member, the small-diameter end of the tapered wall portion is connected to the connection wall of the connecting portion regulated by the inner peripheral surface of the ring-shaped recess of the female member. Portion and the end wall portion in the direction perpendicular to the axis. Therefore, even if a large axial force is applied between the female member and the male member in a direction in which the female member and the male member are separated from each other, the locking member is provided at the small-diameter end of the tapered wall portion with the ring-shaped projection of the male member. Can sufficiently receive the force acting in the axial direction, and does not buckle.
【0017】さらに、係止部材のCリング状大径端部、
連結部の頂面壁部の少なくとも周方向の両端部及び一対
の先端壁部の端縁当接部が、雌部材のリング状凹部の内
周面に当接しており、しかも各テーパ壁部が上記したよ
うに連結部の接続壁部及び先端壁部により軸直角方向に
規制されているので、係止部材が雌部材のリング状凹部
内で軸直角方向に遊動したりがたついたりすることがな
い。Further, a C-ring-shaped large-diameter end portion of the locking member,
At least both ends in the circumferential direction of the top wall portion of the connecting portion and the edge contact portions of the pair of tip wall portions are in contact with the inner peripheral surface of the ring-shaped concave portion of the female member, and each tapered wall portion is formed as described above. As described above, since the connection wall portion and the end wall portion of the connecting portion are regulated in the direction perpendicular to the axis, the locking member may float or rattle in the direction perpendicular to the axis in the ring-shaped concave portion of the female member. Absent.
【0018】したがって、係止部材を介して、雌部材及
び雄部材を強固に連結保持することが可能となる。Therefore, the female member and the male member can be firmly connected and held via the locking member.
【0019】[0019]
【実施例】以下、本発明の具体的な実施例を図面を参照
しつつ説明する。 (実施例1)図1〜図8に示す本実施例のクイックコネ
クタは、筒状をなす金属製の雌部材1と、筒状をなす金
属製の雄部材2と、雌部材2内に配置されたバネ鋼から
なる係止部材3とから構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) A quick connector according to the present embodiment shown in FIGS. 1 to 8 has a female female member 1 in a cylindrical shape, a male male member 2 in a cylindrical shape, and a female member 2. And a locking member 3 made of spring steel.
【0020】雌部材1は、図1〜図4に示すように、軸
方向一端に求心方向に延びる開口フランジ10と、開口
フランジ10の内方に開口フランジ10と隣接して設け
られ開口フランジ10の開口径より内径の大きいリング
状凹部11aとを備えた受筒部11と、受筒部11と一
体的に形成された軸部12とを有している。受筒部11
は雌部材1の軸方向一端側を拡径加工することにより形
成されている。なお、受筒部11のリング状凹部11a
の内方側の端部は、段面11bとされている。また軸部
12には、リング溝12a、シール面12b、第1段面
12c及びリング状の嵌合面12d、第2段面12eが
形成されている。そして、リング溝12aにはブッシュ
14が保持され、シール面12bにはシールリング15
及びカラー16が保持されている。As shown in FIGS. 1 to 4, the female member 1 has an opening flange 10 extending axially at one end in the axial direction, and an opening flange 10 provided inside the opening flange 10 adjacent to the opening flange 10. A cylindrical portion 11 having a ring-shaped concave portion 11a having an inner diameter larger than the opening diameter of the cylindrical portion 11 and a shaft portion 12 formed integrally with the cylindrical portion 11; Cylinder section 11
Is formed by expanding the diameter of one end of the female member 1 in the axial direction. The ring-shaped recess 11a of the receiving cylinder 11
Is formed as a step surface 11b. The shaft 12 has a ring groove 12a, a sealing surface 12b, a first step surface 12c, a ring-shaped fitting surface 12d, and a second step surface 12e. The bush 14 is held in the ring groove 12a, and the seal ring 15 is
And the collar 16 are held.
【0021】雄部材2は、図2、図3に示すように、軸
方向一端から所定の距離位置に遠心方向に突出したリン
グ状突部20と、リング状突部20よりも先方の嵌合筒
部21とを有している。雄部材2の嵌合筒部21の外周
径は雌部材1の嵌合面12dの内周径に相応している。
なお雄部材2のうち、嵌合筒部21の反対側の端部には
ホースが接続される。As shown in FIGS. 2 and 3, the male member 2 has a ring-shaped projection 20 projecting in a centrifugal direction at a predetermined distance from one end in the axial direction. And a cylindrical portion 21. The outer diameter of the fitting cylindrical portion 21 of the male member 2 corresponds to the inner diameter of the fitting surface 12 d of the female member 1.
In addition, a hose is connected to the end of the male member 2 on the opposite side of the fitting cylinder 21.
【0022】係止部材3は、図5〜図8に示すように、
Cリング状の全体形状を有し、ステンレスの薄い板バネ
を切断、折り曲げ加工して形成されている。係止部材3
は、Cリング状大径端部31と、互いに対称的に対面配
置された一対の弧状テーパ壁部32、32と、連結部3
3と、一対の先端壁部34、34とから一体的に構成さ
れている。The locking member 3 is, as shown in FIGS.
It has a C-ring overall shape and is formed by cutting and bending a thin stainless steel leaf spring. Locking member 3
Is a C-ring-shaped large-diameter end portion 31, a pair of arc-shaped tapered wall portions 32, 32 arranged symmetrically facing each other, and a connecting portion 3.
3 and a pair of tip wall portions 34, 34.
【0023】係止部材3のCリング状大径端部31は、
雌部材1の開口フランジ10の開口径よりも大きく、か
つ、リング状凹部11aの内径に略等しい外径を有して
いる。そして、係止部材3が雌部材1のリング状凹部1
1a内に収納された状態では、係止部材3のCリング状
大径端部31は開口フランジ10の内側面及びリング状
凹部11aの内周面に当接している。The C-ring-shaped large-diameter end portion 31 of the locking member 3 is
It has an outer diameter larger than the opening diameter of the opening flange 10 of the female member 1 and substantially equal to the inner diameter of the ring-shaped recess 11a. Then, the locking member 3 is the ring-shaped recess 1 of the female member 1.
When housed in the inside 1a, the C-ring-shaped large-diameter end portion 31 of the locking member 3 is in contact with the inner surface of the opening flange 10 and the inner peripheral surface of the ring-shaped recess 11a.
【0024】係止部材3の一対の弧状テーパ壁部32、
32は、その大径側が上記Cリング状大径端部31と一
体的に形成され、該Cリング状大径端部31から雌部材
1の内方に向かうに連れてCリング状大径端部31と同
軸的に小径となっている。一対の弧状テーパ壁部32、
32の小径側の端部は、雄部材2のリング状突部20の
外径よりも小さく、かつ雄部材2の嵌合筒部21の外径
と略等しい内径を有している。そして、雄部材2が雌部
材1に連結された状態では、一対の弧状テーパ壁部3
2、32の小径側の端部が、雄部材2のリング状突部2
0と係合するとともに、雄部材2の外周面に当接してい
る。A pair of arc-shaped tapered wall portions 32 of the locking member 3,
The large-diameter side 32 is formed integrally with the C-ring-shaped large-diameter end 31, and the C-ring-shaped large-diameter end goes from the C-ring-shaped large-diameter end 31 toward the inside of the female member 1. It has a small diameter coaxially with the portion 31. A pair of arc-shaped tapered wall portions 32,
32 has an inner diameter smaller than the outer diameter of the ring-shaped projection 20 of the male member 2 and substantially equal to the outer diameter of the fitting tube 21 of the male member 2. When the male member 2 is connected to the female member 1, the pair of arc-shaped tapered wall portions 3
The ends of the small diameter sides of the male member 2 and the ring-shaped protrusion 2
0 and is in contact with the outer peripheral surface of the male member 2.
【0025】係止部材3の連結部33は、Cリング状大
径端部31から弧状テーパ壁部32の小径側端部まで延
在して一対の弧状テーパ壁部32、32を連結してい
る。この連結部33は、Cリング状大径端部31の外径
と略同径のリング状凹部11aの内周面に当接する弧状
頂面壁部33aと、弧状頂面壁部33aの周方向の両端
部から折り曲げられて互いに略平行に延び一対の弧状テ
ーパ壁部32、32のそれぞれの周方向の一方側の端縁
部に結合された略三角板状の一対の接続壁部33b、3
3bとからなっている。そして、係止部材3が雌部材1
のリング状凹部11a内に収納された状態では、弧状頂
面壁部33aは雌部材1のリング状凹部11aの内周面
に当接している。The connecting portion 33 of the locking member 3 extends from the C-ring-shaped large-diameter end portion 31 to the small-diameter end portion of the arc-shaped tapered wall portion 32 to connect the pair of arc-shaped tapered wall portions 32, 32. I have. The connecting portion 33 includes an arc-shaped top wall portion 33a that contacts the inner peripheral surface of the ring-shaped concave portion 11a having substantially the same diameter as the outer diameter of the C-ring-shaped large-diameter end portion 31, and both ends in the circumferential direction of the arc-shaped top wall portion 33a. A pair of substantially triangular plate-shaped connection walls 33b, 3b, which are bent from the portions and extend substantially parallel to each other, and are coupled to one circumferential edge of each of the pair of arc-shaped tapered wall portions 32, 32.
3b. And the locking member 3 is the female member 1
In this state, the arc-shaped top wall portion 33a is in contact with the inner peripheral surface of the ring-shaped recess 11a of the female member 1.
【0026】係止部材3の一対の先端壁部34、34
は、Cリング状大径端部31の周方向の両端部から弧状
テーパ壁部32の小径側の端部まで延在して、一対の弧
状テーパ壁部32、32のそれぞれの周方向の他方側の
端縁部に結合されている。また、この先端壁部34は略
三角形状を有し、互いに対称的に上記接続壁部33bと
平行に延びている。そして、一対の先端壁部34、34
は、係止部材3が雌部材1のリング状凹部11a内に収
納された状態で、リング状凹部11aの内周面に当接す
る一対の端縁当接部34a、34aを有している。A pair of tip walls 34, 34 of the locking member 3
Extends from both ends in the circumferential direction of the C-ring-shaped large-diameter end portion 31 to ends on the small-diameter side of the arc-shaped tapered wall portion 32, and each of the pair of arc-shaped tapered wall portions 32, 32 in the other circumferential direction. Side edge. The distal end wall portion 34 has a substantially triangular shape, and extends symmetrically in parallel with the connection wall portion 33b. Then, a pair of tip wall portions 34, 34
Has a pair of edge contact portions 34a, 34a that contact the inner peripheral surface of the ring-shaped recess 11a in a state where the locking member 3 is housed in the ring-shaped recess 11a of the female member 1.
【0027】なお、係止部材3のCリング状大径端部3
1の外径は、係止部材3が雌部材1内に嵌め込まれる前
の自然状態にあるとき、雌部材1のリング状凹部11a
の内径よりも若干大きく設定されている。この係止部材
3は、一対の先端壁部34、34が互いに近づく方向に
弾性変形により縮径されながら開口フランジ10からリ
ング状凹部11a内に挿入されることにより、係止部材
3自身の弾性力で元の径にほぼ復元し、Cリング状大径
端部31、弧状頂面壁部33a及び一対の端縁当接部3
4a、34aの外周面をリング状凹部11aの内周面に
押圧した状態で嵌め込まれている。The large-diameter end 3 of the C-ring of the locking member 3
When the locking member 3 is in a natural state before being fitted into the female member 1, the outer diameter of the female member 1 is equal to the ring-shaped recess 11 a of the female member 1.
Is set slightly larger than the inner diameter of. The locking member 3 is inserted into the ring-shaped recess 11a from the opening flange 10 while the diameter of the pair of distal end walls 34, 34 is reduced by elastic deformation in a direction approaching each other, so that the elasticity of the locking member 3 itself is increased. It is almost restored to the original diameter by the force, the C-ring-shaped large-diameter end portion 31, the arc-shaped top wall portion 33a, and the pair of edge contact portions 3
The outer peripheral surfaces of 4a and 34a are fitted to the inner peripheral surface of the ring-shaped recess 11a while being pressed.
【0028】以下、本実施例のクイックコネクタの作用
をその使用方法とともに説明する。上述の如く係止部材
3を保持した雌部材1に対して、先ず、雄部材2の嵌合
筒部21を開口フランジ11から雌部材1のリング状凹
部11a内に挿入し、雄部材2のリング状突部20を係
止部材3の一対の弧状テーパ壁部32、32の内面に押
し当て、一対の弧状テーパ壁部32、32の小径側端部
が径外方向に反るように弾性変形する(図2の状態)。
このとき、係止部材3のCリング状大径端部31、連結
部33の弧状頂面壁部33a及び一対の先端壁部34、
34の端縁当接部34a、34aが、雌部材1のリング
状凹部11aの内周面に当接しており、係止部材3は雌
部材1のリング状凹部11a内に同心状に確実に保持さ
れている。また、係止部材3は、連結部33及び先端壁
部34の端部がリング状凹部11aの段面11bに当接
することにより、雌部材1の内方への動きが規制されて
いる。このため、係止部材3の一対の弧状テーパ壁部3
2、32が雄部材2のリング状突部20により弾性変形
される際、係止部材3が径方向や軸方向にずれることが
ないので、雌部材1に対する雄部材2の挿入作業性は極
めて良好なものとなる。Hereinafter, the operation of the quick connector according to the present embodiment will be described together with its method of use. For the female member 1 holding the locking member 3 as described above, first, the fitting cylindrical portion 21 of the male member 2 is inserted from the opening flange 11 into the ring-shaped concave portion 11a of the female member 1, and The ring-shaped protrusion 20 is pressed against the inner surfaces of the pair of arc-shaped tapered walls 32, 32 of the locking member 3, and the small-diameter side ends of the pair of arc-shaped tapered walls 32, 32 are elastically warped radially outward. Deforms (state of FIG. 2).
At this time, the C-ring-shaped large-diameter end portion 31 of the locking member 3, the arc-shaped top wall portion 33a of the connecting portion 33, and a pair of tip end wall portions 34,
The edge contact portions 34a, 34a of the female member 1 are in contact with the inner peripheral surface of the ring-shaped concave portion 11a of the female member 1, and the locking member 3 is surely concentrically in the ring-shaped concave portion 11a of the female member 1. Is held. The inward movement of the female member 1 of the locking member 3 is regulated by the ends of the connecting portion 33 and the distal end wall portion 34 abutting on the step surface 11b of the ring-shaped concave portion 11a. For this reason, the pair of arc-shaped tapered wall portions 3 of the locking member 3
When the ring members 2 and 32 are elastically deformed by the ring-shaped projections 20 of the male member 2, the locking member 3 does not shift in the radial direction or the axial direction, so that the workability of inserting the male member 2 into the female member 1 is extremely high. It will be good.
【0029】そして、雄部材2をさらに挿入すれば、雄
部材2のリング状突部20は係止部材3を越え、係止部
材3よりも奥方に挿入され、径外方向に弾性変形した一
対の弧状テーパ壁部32、32は自身の弾性力で復元す
る(図3の状態)。これにより、雄部材2のリング状突
部20と係止部材3の一対の弧状テーパ壁部32、32
の小径側の端部とが係合されるとともに、雌部材1の開
口フランジ10の内側面及びリング状凹部11aの内周
面に係止部材3のCリング状大径端部31が係止され、
かつ、係止部材3の連結部33の弧状頂面壁壁33a及
び一対の先端壁部34、34の端縁当接部34a、34
aがリング状凹部11aの内周面に当接され、以て雌部
材1に雄部材2は連結される。Then, when the male member 2 is further inserted, the ring-shaped protrusion 20 of the male member 2 exceeds the locking member 3 and is inserted deeper than the locking member 3, and a pair of elastically deformed radially outward. The arc-shaped tapered wall portions 32, 32 are restored by their own elastic force (the state of FIG. 3). Thereby, the pair of arc-shaped tapered wall portions 32, 32 of the ring-shaped projection 20 of the male member 2 and the locking member 3 are formed.
And the C-ring-shaped large-diameter end portion 31 of the locking member 3 is locked to the inner surface of the opening flange 10 of the female member 1 and the inner peripheral surface of the ring-shaped recess 11a. And
Further, the arc-shaped top wall wall 33a of the connecting portion 33 of the locking member 3 and the edge contact portions 34a, 34 of the pair of tip end wall portions 34, 34.
a is brought into contact with the inner peripheral surface of the ring-shaped recess 11a, whereby the male member 2 is connected to the female member 1.
【0030】この雌部材1と雄部材2とが連結された状
態では、両者を連結する係止部材3が雌部材1のリング
状凹部11aに収納されている。このため、係止部材3
が他の部材と衝突、干渉することがない。また、雌部材
1と雄部材2の軸方向の相対移動は、係止部材3の一対
の弧状テーパ壁部32、32の小径側の端部と雄部材2
のリング状突部20とが係止されるとともに、係止部材
3のCリング状大径端部31と雌部材1の開口フランジ
10の内側面とが係止されることにより、確実に規制さ
れる。しかも、係止部材3の弧状テーパ壁部32の小径
側の端部においては、該弧状テーパ壁部32の小径側の
端部が、それぞれ雌部材1のリング状凹部11aの内周
面で規制された連結部33の接続壁部33b及び先端壁
部34により軸直角方向に挟持されている。このため、
雌部材1及び雄部材2間に両者が相互に離れる方向の大
きな軸方向力が作用しても、係止部材3は、弧状テーパ
壁部32の小径側の端部において、雄部材2のリング状
突部20から軸方向に作用する力を十分に受け止めるこ
とができ、座屈したりするようなことはない。When the female member 1 and the male member 2 are connected to each other, the locking member 3 for connecting the two is housed in the ring-shaped recess 11a of the female member 1. For this reason, the locking member 3
Does not collide with or interfere with other members. The relative movement of the female member 1 and the male member 2 in the axial direction is controlled by the small-diameter end portions of the pair of arc-shaped tapered wall portions 32 of the locking member 3 and the male member 2.
And the C-shaped large-diameter end 31 of the locking member 3 and the inner surface of the opening flange 10 of the female member 1 are securely locked. Is done. Moreover, at the small-diameter end of the arc-shaped tapered wall portion 32 of the locking member 3, the small-diameter end of the arc-shaped tapered wall portion 32 is regulated by the inner peripheral surface of the ring-shaped recess 11 a of the female member 1. The connecting wall 33 is sandwiched in the direction perpendicular to the axis by the connecting wall 33b and the end wall 34. For this reason,
Even if a large axial force is applied between the female member 1 and the male member 2 in a direction in which the female member 1 and the male member 2 are separated from each other, the locking member 3 is formed by the ring of the male member 2 at the small-diameter end of the arc-shaped tapered wall portion 32. The force acting in the axial direction from the protruding portion 20 can be sufficiently received, and buckling does not occur.
【0031】さらに、係止部材3のCリング状大径端部
31、連結部33の弧状頂面壁部33a及び一対の先端
壁部34、34の端縁当接部34a、34aが、雌部材
1のリング状凹部11aの内周面に当接しており、しか
も各弧状テーパ壁部32が上記したように連結部33の
接続壁部33b及び先端壁部34により軸直角方向に規
制されているので、係止部材3が雌部材1のリング状凹
部11a内で軸直角方向に遊動したりがたついたりする
ことがない。Further, the C-ring-shaped large-diameter end portion 31 of the locking member 3, the arc-shaped top wall portion 33a of the connecting portion 33, and the edge contact portions 34a, 34a of the pair of tip end walls 34, 34 are female members. The inner peripheral surface of the ring-shaped concave portion 11a is in contact with each other, and each arc-shaped tapered wall portion 32 is regulated in the direction perpendicular to the axis by the connecting wall portion 33b and the distal end wall portion 34 of the connecting portion 33 as described above. Therefore, the locking member 3 does not move or rattle in the direction perpendicular to the axis in the ring-shaped concave portion 11a of the female member 1.
【0032】したがって、本実施例のクイックコネクタ
は、係止部材3を介して、雌部材1及び雄部材2を強固
に連結保持することが可能となる。また、本実施例のク
イックコネクタの係止部材3は、図12〜図15に示す
先願のクイックコネクタのように係合突起601、60
2、607を有していないので、同係合突起601、6
02、607を通すための切欠401a、401bを雌
部材400の受入開口401に形成する必要がない。こ
のため、雌部材1の開口フランジ10に切欠を施さなく
ても係止部材3の縮径により該開口フランジ10から自
在に挿入することが可能となり、係止部材3の装着作業
性が向上する。また、本実施例に係る雌部材1の開口フ
ランジ10の形状は単純な円形状とすることができ(図
4参照)、雌部材1の製造コストが低減する。Therefore, in the quick connector of the present embodiment, the female member 1 and the male member 2 can be firmly connected and held via the locking member 3. In addition, the locking member 3 of the quick connector of the present embodiment has the engagement protrusions 601, 60 like the quick connector of the prior application shown in FIGS.
2 and 607, the engagement protrusions 601, 6
It is not necessary to form notches 401 a and 401 b for passing the holes 02 and 607 in the receiving opening 401 of the female member 400. For this reason, even if the opening flange 10 of the female member 1 is not notched, it is possible to freely insert the opening member 10 from the opening flange 10 by reducing the diameter of the locking member 3, and the mounting workability of the locking member 3 is improved. . Further, the shape of the opening flange 10 of the female member 1 according to this embodiment can be a simple circular shape (see FIG. 4), and the manufacturing cost of the female member 1 is reduced.
【0033】なお、雄部材2と雌部材1とを分離する場
合には、図3に示すように、リリース具4を雌部材1の
奥方に移動させ、リリース具4を係止部材3の一対の弧
状テーパ壁部32、32の内面に押し当てて弾性変形さ
せ、リング状突部20と各弧状テーパ壁部32との係止
を解除し、解除した状態で雄部材2と雌部材1とを相対
的に引き離せばよい。When the male member 2 and the female member 1 are separated from each other, the release member 4 is moved to the back of the female member 1 as shown in FIG. Are pressed against the inner surfaces of the arc-shaped tapered wall portions 32, 32 to be elastically deformed, the engagement between the ring-shaped projection 20 and each of the arc-shaped tapered wall portions 32 is released, and the male member 2 and the female member 1 Should be relatively separated.
【0034】また、雄部材2と雌部材1とを連結したク
イックコネクタでは、図3に示すように、シールリング
15によって雄部材2と雌部材1との境界域のシールが
維持され、筒状の雄部材2及び筒状の雌部材1を介して
流体が移送される。 (実施例2)本実施例に係るクイックコネクタは、係止
部材の形状を変更したもので他の構成は上記実施例1と
同じである。In the quick connector in which the male member 2 and the female member 1 are connected to each other, as shown in FIG. The fluid is transferred via the male member 2 and the cylindrical female member 1. (Embodiment 2) The quick connector according to the present embodiment has the same structure as that of Embodiment 1 except that the shape of the locking member is changed.
【0035】この係止部材3’は、図9に示すように、
上記実施例1の係止部材3において、弧状テーパ壁部3
2の数を三つとし、かつ、連結部33の数を二つとした
もので、その他の構成は上記実施例1の係止部材3と同
様の構成を有する。本実施例のクイックコネクタも上記
実施例1と同様の作用、効果を奏する。また、図10に
示すように、この係止部材3’の各連結部33の弧状頂
面壁部33aに、弧状テーパ壁部32の小径側の端部か
ら軸方向に伸びる溝33cを形成することもできる。こ
れにより、係止部材3’全体の縮径率を高めて、係止部
材3’を雌部材1の開口フランジ10からリング状凹部
11a内に装着する際の装着作業性をさらに高めること
ができる。As shown in FIG. 9, the locking member 3 '
In the locking member 3 of the first embodiment, the arc-shaped tapered wall 3
The number of 2 is three and the number of connecting parts 33 is two, and the other configuration is the same as the locking member 3 of the first embodiment. The quick connector according to the present embodiment also has the same operation and effect as the first embodiment. Further, as shown in FIG. 10, a groove 33c extending in the axial direction from the small-diameter end of the arc-shaped tapered wall portion 32 is formed in the arc-shaped top wall portion 33a of each connecting portion 33 of the locking member 3 '. Can also. Thereby, the diameter of the entire locking member 3 ′ can be increased, and the mounting workability when mounting the locking member 3 ′ from the opening flange 10 of the female member 1 into the ring-shaped recess 11 a can be further improved. .
【0036】なお、前述の実施例では、本発明のコネク
タに係る連結部の頂面壁部を弧状頂面壁部33aとした
が、弧状形状に限定されるものではない。例えば、頂面
壁部をストレート面として、その周方向の両端部をリン
グ状凹部11aの内周面に当接させる構成とすることも
できる。また、雌部材1をナイロン、ポリプロピレン等
の樹脂を用いて形成できることは勿論のこと、係止部材
3、3’をナイロン等のバネ弾性を有する樹脂を用いて
形成することもできる。In the above-described embodiment, the top wall of the connecting portion according to the connector of the present invention is the arc-shaped top wall 33a, but is not limited to the arc. For example, it is also possible to adopt a configuration in which the top wall portion is a straight surface, and both ends in the circumferential direction are in contact with the inner peripheral surface of the ring-shaped concave portion 11a. In addition, the female member 1 can be formed using a resin such as nylon or polypropylene, and the locking members 3 and 3 'can also be formed using a resin having spring elasticity such as nylon.
【0037】[0037]
【発明の効果】以上詳述したように、本発明のクイック
コネクタは、雌部材と雄部材とを連結する前の状態で、
雌部材に収納された係止部材が雌部材のリング状凹部に
同心状に確実に保持されているので、雄部材を雌部材に
挿入する際の作業性は極めて良好なものとなる。As described in detail above, the quick connector of the present invention can be used before connecting the female member and the male member.
Since the locking member housed in the female member is securely held concentrically in the ring-shaped recess of the female member, the workability when inserting the male member into the female member is extremely good.
【0038】また、雌部材と雄部材とを連結した状態で
は、両者を連結する係止部材が雌部材のリング状凹部内
に収納されているので、係止部材が他の部材と衝突、干
渉する不都合を確実に解消することができる。さらに、
雌部材と雄部材とを連結した状態で、両者を連結する係
止部材は軸方向及び径方向にがたついたりすることがな
い。しかもテーパ壁部の小径側の端部側において、連結
部の頂面壁部及び先端壁部の端縁当接部が雌部材のリン
グ状凹部に当接するとともに、該連結部の接続壁部及び
先端壁部が軸直角方向に延在しているので、係止部材
は、軸方向及び軸直角方向の外力に対して強く、座屈し
たりするようなことはない。したがって、本発明のクイ
ックコネクタは、係止部材により、雌部材及び雄部材を
強固に連結保持することが可能となる。When the female member and the male member are connected to each other, the locking member for connecting the female member and the male member is housed in the ring-shaped concave portion of the female member. The inconvenience can be solved without fail. further,
With the female member and the male member connected, the locking member connecting the two members does not rattle in the axial direction and the radial direction. In addition, on the side of the small diameter side of the tapered wall portion, the edge contact portions of the top wall portion and the distal end wall portion of the connecting portion abut against the ring-shaped concave portion of the female member, and the connecting wall portion and the distal end of the connecting portion. Since the wall extends in the direction perpendicular to the axis, the locking member is strong against external forces in the axial direction and the direction perpendicular to the axis, and does not buckle. Therefore, in the quick connector of the present invention, the female member and the male member can be firmly connected and held by the locking member.
【0039】さらに本発明のクイックコネクタの係止部
材は、係合突起を通すための切欠を雌部材の開口フラン
ジに形成する必要がなく、該開口フランジを単純円形状
とすることができるので、係止部材の装着作業性の向上
とともに、雌部材の製造コストの低減を図ることができ
る。Further, the locking member of the quick connector according to the present invention does not need to form a notch for passing the engaging projection in the opening flange of the female member, and the opening flange can be formed in a simple circular shape. It is possible to improve the mounting workability of the locking member and reduce the manufacturing cost of the female member.
【図1】本実施例1のクイックコネクタに係る雌部材の
断面図である。FIG. 1 is a sectional view of a female member according to a quick connector of a first embodiment.
【図2】本実施例1に係り、雌部材に雄部材と挿入する
際の断面図である。FIG. 2 is a cross-sectional view when the male member is inserted into the female member according to the first embodiment.
【図3】本実施例1に係り、雌部材と雄部材とを連結し
た状態の断面図である。FIG. 3 is a cross-sectional view of the first embodiment in which a female member and a male member are connected.
【図4】本実施例1に係り、図1のX矢視図である。FIG. 4 is a view on arrow X in FIG. 1 according to the first embodiment.
【図5】本実施例1に係り、係止部材の斜視図である。FIG. 5 is a perspective view of a locking member according to the first embodiment.
【図6】上記係止部材の正面図で、図5のA矢視図であ
る。6 is a front view of the locking member, and is a view as viewed in the direction of arrow A in FIG. 5;
【図7】上記係止部材の図6のB−B線矢視断面図であ
る。FIG. 7 is a cross-sectional view of the locking member taken along line BB of FIG. 6;
【図8】上記係止部材の図6のC−C線矢視断面図であ
る。8 is a cross-sectional view of the locking member taken along line CC of FIG. 6;
【図9】本実施例2に係り、係止部材の他の態様を示す
斜視図である。FIG. 9 is a perspective view showing another aspect of the locking member according to the second embodiment.
【図10】本実施例2に係り、係止部材の他の態様を示
す斜視図である。FIG. 10 is a perspective view showing another aspect of the locking member according to the second embodiment.
【図11】従来のクイックコネクタの分解斜視図であ
る。FIG. 11 is an exploded perspective view of a conventional quick connector.
【図12】上記従来のクイックコネクタの断面図であ
る。FIG. 12 is a sectional view of the conventional quick connector.
【図13】他の従来のクイックコネクタの断面図であ
る。FIG. 13 is a sectional view of another conventional quick connector.
【図14】上記他の従来のクイックコネクタの側面図で
ある。FIG. 14 is a side view of the other conventional quick connector.
【図15】上記他の従来のクイックコネクタの係止部材
の平面図である。FIG. 15 is a plan view of a locking member of another conventional quick connector.
【図16】上記他の従来のクイックコネクタの係止部材
の正面図である。FIG. 16 is a front view of a locking member of another conventional quick connector.
1は雌部材、10は開口フランジ、11aはリング状凹
部、2は雄部材、20はリング状突部、3、3’は係止
部材、31はCリング状大径端部、32は弧状テーパ壁
部、33は連結部、33aは弧状頂面壁部、33bは接
続壁部、34は先端壁部、34aは端縁当接部である。1 is a female member, 10 is an opening flange, 11a is a ring-shaped concave portion, 2 is a male member, 20 is a ring-shaped projection, 3 and 3 'are locking members, 31 is a C-ring-shaped large-diameter end portion, and 32 is an arc-shaped portion. A tapered wall portion, 33 is a connecting portion, 33a is an arc-shaped top wall portion, 33b is a connecting wall portion, 34 is a front end wall portion, and 34a is an edge contact portion.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 加藤 和宏 愛知県小牧市大字北外山字哥津3600番地 東海ゴム工業株式会社内 (56)参考文献 特開 平2−8589(JP,A) (58)調査した分野(Int.Cl.6,DB名) F16L 37/12────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuhiro Kato 3600, Gezu, Kita-gaiyama, Komaki City, Aichi Prefecture Tokai Rubber Industries Co., Ltd. (56) References JP-A-2-8589 (JP, A) (58) ) Surveyed field (Int.Cl. 6 , DB name) F16L 37/12
Claims (1)
ジと、該開口フランジの内方に該開口フランジと隣接し
て設けられた該開口フランジの開口径より内径の大きい
リング状凹部とをもつ筒状の雌部材と、 先端から所定の距離位置に遠心方向に突出したリング状
突部をもち、該開口フランジから該リング状凹部に挿入
される筒状をなす雄部材と、 該雌部材の該リング状凹部内に保持されて該リング状凹
部に挿入された該雄部材を該雌部材に連結するバネ弾性
を有する係止部材とを備え、 該係止部材は、 前記雌部材の前記開口フランジの内側面に対向するとと
もに前記リング状凹部の内周面に当接し、前記開口フラ
ンジの内径よりも大きく、かつ、前記リング状凹部の内
径に略等しい外径を有するCリング状大径端部と、 該Cリング状大径端部から前記雌部材の内方に向かうに
連れて該Cリング状大径端部と同軸的に小径となり、そ
の小径側の端部が前記雄部材のリング状突部の外径より
も小さい内径を有して該リング状突部と係止する周方向
に分散配置された複数のテーパ壁部と、 該Cリング状大径端部から該小径側の端部に向かって軸
と平行に延び、該Cリング状大径端部の外径と略同径の
前記リング状凹部の内周面に少なくとも周方向の両端部
が当接する頂面壁部と、該頂面壁部の周方向の両端部か
ら曲げられて互いに略平行に延び各該テーパ壁部のそれ
ぞれの周方向の一方側の端縁部に結合された一対の接続
壁部とからなり、該Cリング状大径端部から該テーパ壁
部の小径側の端部に向かって延在して各該テーパ壁部を
連結する少なくとも一つの連結部と、 該Cリング状大径端部の周方向の両端部から該テーパ壁
部の小径側の端部に向かって延在して該テーパ壁部の周
方向の端縁部に結合され、該Cリング状大径端部から該
小径側の端部に向かって軸と平行に延び、該Cリング状
大径端部の外径と略同径の前記リング状凹部の内周面に
当接する端縁当接部をもつ一対の先端壁部とから構成さ
れていることを特徴とするクイックコネクタ。An opening flange extending in a centripetal direction at one axial end, and a ring-shaped recess having an inner diameter larger than the opening diameter of the opening flange provided adjacent to the opening flange inside the opening flange. A cylindrical female member, a cylindrical male member having a ring-shaped protrusion protruding in a centrifugal direction at a predetermined distance from a distal end, and being inserted into the ring-shaped recess from the opening flange; A locking member having spring elasticity for connecting the male member inserted into the ring-shaped concave portion to the female member, the locking member being held in the ring-shaped concave portion, and the locking member is provided in the opening of the female member. A C-ring-shaped large-diameter end that faces the inner surface of the flange and abuts the inner peripheral surface of the ring-shaped recess, and has an outer diameter larger than the inner diameter of the opening flange and substantially equal to the inner diameter of the ring-shaped recess. Part and the C-ring shaped large The diameter decreases coaxially with the C-ring-shaped large-diameter end from the end toward the inside of the female member, and the end on the small-diameter side is smaller than the outer diameter of the ring-shaped protrusion of the male member. A plurality of tapered wall portions having an inner diameter and arranged in the circumferential direction to be engaged with the ring-shaped protrusions, and from the C-ring-shaped large-diameter end to the small-diameter side end in parallel with the axis. A top wall portion extending at least both ends in the circumferential direction abutting on the inner peripheral surface of the ring-shaped concave portion having substantially the same diameter as the outer diameter of the C-ring-shaped large-diameter end portion, and both circumferential ends of the top wall portion; And a pair of connecting walls connected to one peripheral edge of each of the tapered wall portions extending in substantially parallel with each other from the C-shaped large-diameter end portion. At least one connecting portion extending toward an end on the small diameter side of the tapered wall portion and connecting each of the tapered wall portions; The C-ring-shaped large-diameter end extends from both circumferential ends of the large-diameter end toward the small-diameter end of the tapered wall and is coupled to the circumferential end of the tapered wall. An edge contact portion extending parallel to the axis from the portion toward the small-diameter side end portion and abutting against the inner peripheral surface of the ring-shaped concave portion having substantially the same diameter as the outer diameter of the C-ring-shaped large-diameter end portion. A quick connector, comprising: a pair of end wall portions.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5012474A JP2769763B2 (en) | 1993-01-28 | 1993-01-28 | Quick connector |
DE69311951T DE69311951T2 (en) | 1992-03-25 | 1993-03-24 | Quick coupling |
EP93104859A EP0566889B1 (en) | 1992-03-25 | 1993-03-24 | Quick connector |
US08/038,981 US5378024A (en) | 1992-03-25 | 1993-03-25 | Quick connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5012474A JP2769763B2 (en) | 1993-01-28 | 1993-01-28 | Quick connector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06221485A JPH06221485A (en) | 1994-08-09 |
JP2769763B2 true JP2769763B2 (en) | 1998-06-25 |
Family
ID=11806380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5012474A Expired - Fee Related JP2769763B2 (en) | 1992-03-25 | 1993-01-28 | Quick connector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2769763B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20201574U1 (en) * | 2002-02-02 | 2003-06-18 | Voss Automotive GmbH, 51688 Wipperfürth | Receiving part of a fluid plug-in coupling |
US7488005B2 (en) * | 2004-09-13 | 2009-02-10 | Ti Group Automotive Systems, Llc | Quick connector for high pressure applications |
JP5024856B2 (en) * | 2006-05-09 | 2012-09-12 | 臼井国際産業株式会社 | Connector for small diameter pipe connection |
-
1993
- 1993-01-28 JP JP5012474A patent/JP2769763B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06221485A (en) | 1994-08-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5568946A (en) | Squeeze-to-release quick connector with snap-in retainer | |
US7438328B2 (en) | Quick connector | |
US4943091A (en) | Quick connector | |
US5897142A (en) | Push-to-release quick connector | |
US5112084A (en) | Connector for small-diameter piping | |
WO2002055918A1 (en) | Pipe joint | |
JP2002013684A (en) | Quick connector | |
JP3373046B2 (en) | Quick connector | |
JP3674390B2 (en) | Quick connector coupling and female housing | |
JP2001200963A (en) | Connector | |
JP2769763B2 (en) | Quick connector | |
US5772263A (en) | One piece quick connector and integral retainer | |
JPH05118485A (en) | Connector for fluid and sealing assembly in said connector | |
JP3006359B2 (en) | Quick connector | |
JP3669222B2 (en) | Quick connector | |
JP2979487B2 (en) | Quick connector | |
JP3187549B2 (en) | Connector and male connector | |
JP2573459Y2 (en) | connector | |
JP4494602B2 (en) | Bonding bracket | |
JPH089513Y2 (en) | Quick connector | |
JP3308782B2 (en) | Plug-in joint structure | |
US5621959A (en) | Method of attaching a bead assembly to a tubular conduit | |
JP2001056080A (en) | Pipe joint structure | |
JP2561694B2 (en) | Pipe fitting | |
JPH0637258Y2 (en) | Connector for small diameter piping |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080417 Year of fee payment: 10 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090417 Year of fee payment: 11 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090417 Year of fee payment: 11 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100417 Year of fee payment: 12 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110417 Year of fee payment: 13 |
|
LAPS | Cancellation because of no payment of annual fees |