JP2698274B2 - Separation prevention fitting - Google Patents
Separation prevention fittingInfo
- Publication number
- JP2698274B2 JP2698274B2 JP4017462A JP1746292A JP2698274B2 JP 2698274 B2 JP2698274 B2 JP 2698274B2 JP 4017462 A JP4017462 A JP 4017462A JP 1746292 A JP1746292 A JP 1746292A JP 2698274 B2 JP2698274 B2 JP 2698274B2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- pipe
- joint
- adapter
- rubber ring
- 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 With Sleeves (AREA)
- Joints Allowing Movement (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は離脱防止継手に関し、
特にたとえば伸縮性および屈曲性の両方を有する、離脱
防止継手に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-separation joint,
In particular, it relates to a separation-preventing joint having, for example, both elasticity and flexibility.
【０００２】[0002]
【従来の技術】離脱防止機構を内蔵する従来の管継手の
例が、たとえば実公平３−５１５９０号や実願平２−５
０１０８号等に開示されている。すなわち、実公平３−
５１５９０号には、継手本体の受口に挿入される棒材の
外周面に環状凹溝を形成し、環状凹溝に離脱防止リング
を装着して棒材の離脱を防止するようにした、棒材と継
手の接続構造が開示されており、実願平２−５０１０８
号には、受口にテーパ状の外面を有するアダプタを挿入
し、アダプタの外面に離脱防止リングを食い込ませてア
ダプタの離脱を防止するようにした、離脱防止機構が開
示されている。2. Description of the Related Art Examples of conventional pipe joints having a detachment prevention mechanism are disclosed in, for example, Japanese Utility Model Publication No. 3-51590 and Japanese Utility Model Application No. 2-5.
No. 0108 and the like. In other words,
No. 51590 discloses a rod in which an annular groove is formed on the outer peripheral surface of a rod inserted into a socket of a joint body, and a detachment prevention ring is attached to the annular groove to prevent detachment of the rod. A connection structure between a material and a joint is disclosed.
Japanese Patent Application Laid-Open No. H11-157, discloses a detachment prevention mechanism in which an adapter having a tapered outer surface is inserted into a receptacle, and a detachment prevention ring is cut into the outer surface of the adapter to prevent detachment of the adapter.
【０００３】[0003]
【発明が解決しようとする課題】前者では、棒材の外周
面に環状凹溝を形成するようにしているため、現場にお
いて棒材を切断して長さ調整することができず、後者で
は、受口にアダプタを挿入しなければならず、いずれに
おいても施工性の面で問題があった。また、パイプある
いはアダプタを最大に引き出した状態で、これらの外面
はゴム輪および離脱防止リングの２点で支持されるが、
ゴム輪および離脱防止リングの外面はともに継手本体に
よって支持されているため、屈曲性が悪く、地盤変動等
によって管路に加わった曲げ応力を吸収できないという
問題点もあった。さらに、前者では、管路の伸長を吸収
できないという問題点もあった。In the former, since the annular groove is formed on the outer peripheral surface of the bar, it is not possible to cut the bar at the site and adjust the length. An adapter must be inserted into the receiving port, and in any case, there is a problem in terms of workability. Also, with the pipe or adapter pulled out to the maximum, these outer surfaces are supported by two points, a rubber ring and a separation prevention ring,
Since the outer surfaces of the rubber ring and the separation prevention ring are both supported by the joint body, the flexibility is poor, and there is also a problem that the bending stress applied to the pipeline due to ground fluctuation or the like cannot be absorbed. Further, the former has a problem that the elongation of the pipe cannot be absorbed.
【０００４】それゆえに、この発明の主たる目的は、施
工性を向上でき、しかも充分な屈曲性および伸縮性を確
保できる、離脱防止継手を提供することである。[0004] Therefore, a main object of the present invention is to provide a disengagement-preventive joint capable of improving workability and ensuring sufficient flexibility and elasticity.
【０００５】[0005]
【課題を解決するための手段】この発明は、ゴム輪受容
部と、それより奥部に奥部に向かって徐々に拡径された
テーパ部とを有する受口を含む継手本体、受口外周に形
成される球状外面、パイプの引き出し方向に向かって徐
々に縮径されたテーパ面を有する所定長さのリング収納
部と、球状外面に摺動可能に接触される球状内面を有す
る継手部とを含むハウジング、ゴム輪受容部に受容され
るゴム輪、およびリング収納部に収納される離脱防止リ
ングを備える、離脱防止継手である。SUMMARY OF THE INVENTION The present invention relates to a joint body including a receiving port having a rubber ring receiving portion and a tapered portion which is gradually deeper toward the back than the rubber ring receiving portion. A spherical outer surface, a ring housing portion of a predetermined length having a tapered surface gradually reduced in diameter in a pipe drawing direction, and a joint portion having a spherical inner surface slidably contacting the spherical outer surface. , A rubber ring received in the rubber ring receiving portion, and a separation preventing ring stored in the ring storage portion.
【０００６】[0006]
【作用】管路が加熱される等によって伸長した場合に
は、継手本体の受口に挿入されたパイプがさらに奥部に
挿入される。管路が冷却される等によって縮んだ場合に
は、その縮み量に応じて受口からパイプが引き出され
る。パイプの引き出し時には、パイプの移動に伴って離
脱防止リングがリング収納部内を軸方向に移動される。
離脱防止リングがリング収納部のテーパ面に当接した状
態からさらにパイプを引き出そうとすると、離脱防止リ
ングがテーパ面によって縮径されてより強固にパイプ外
周面に係止され、それによってパイプの離脱が防止され
る。この状態でパイプの外面はゴム輪および離脱防止リ
ングの２点で支持されるが、それぞれの外面を支持する
継手本体およびハウジングは球状面で互いに屈曲自在に
接続されるので、管路に加わった曲げ応力を充分に吸収
できる。When the pipe is elongated due to heating or the like, the pipe inserted into the socket of the joint body is further inserted into the inner part. When the pipe is contracted due to cooling or the like, the pipe is drawn out from the receiving port according to the amount of contraction. When the pipe is pulled out, the detachment prevention ring is moved in the ring storage portion in the axial direction with the movement of the pipe.
If the pipe is further pulled out from the state where the detachment prevention ring is in contact with the tapered surface of the ring storage portion, the detachment prevention ring is reduced in diameter by the tapered surface and is more firmly locked to the outer peripheral surface of the pipe. Is prevented. In this state, the outer surface of the pipe is supported at two points, a rubber ring and a separation prevention ring. Bending stress can be sufficiently absorbed.
【０００７】[0007]
【発明の効果】この発明によれば、従来のような環状凹
溝やアダプタが不要なので、施工性を向上できる。しか
も、充分な屈曲性および伸縮性を確保できる。この発明
の上述の目的，その他の目的，特徴および利点は、図面
を参照して行う以下の実施例の詳細な説明から一層明ら
かとなろう。According to the present invention, the workability can be improved because there is no need for the conventional annular groove or adapter. In addition, sufficient flexibility and elasticity can be secured. The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.
【０００８】[0008]
【実施例】図１に示すこの実施例の離脱防止継手１０
は、パイプ１２およびその端部にやや拡径して形成され
る受口１４を有する継手本体１６を含む。受口１４の開
口端部近傍には、ゴム輪受容部１８が形成され、ゴム輪
受容部１８より奥部には、奥部に向かって徐々に拡径さ
れたテーパ部２０が形成される。そして、ゴム輪受容部
１８には、ゴム輪２２が装着される。なお、このような
継手本体１６としては、通常のゴム輪受口管継手が用い
られ得る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detachment prevention joint 10 of this embodiment shown in FIG.
Includes a joint body 16 having a pipe 12 and a socket 14 formed at its end with a slightly enlarged diameter. A rubber ring receiving portion 18 is formed in the vicinity of the opening end of the receiving port 14, and a tapered portion 20 whose diameter is gradually increased toward the back is formed in a portion deeper than the rubber ring receiving portion 18. The rubber ring 22 is attached to the rubber ring receiving portion 18. In addition, as such a joint main body 16, a normal rubber ring receiving pipe joint can be used.
【０００９】継手本体１６には、受口１４外周に装着さ
れるアダプタ２４を介してハウジング２６が接続され
る。アダプタ２４は、受口１４の外面に沿う内面および
球状の外面を有し、図２からよくわかるように２つ割り
状態で準備され、一方２４ａと他方２４ｂとで受口１４
を挟むようにしてその外面に接着される。A housing 26 is connected to the joint body 16 via an adapter 24 mounted on the outer periphery of the socket 14. The adapter 24 has an inner surface along the outer surface of the socket 14 and a spherical outer surface, and is prepared in a split state as can be clearly seen from FIG.
Is adhered to its outer surface so as to sandwich it.
【００１０】ハウジング２６は、アダプタ２４の外面に
沿う球状の内面を有する継手部２８を含む。継手部２８
はアダプタ２４の外面への装着が容易なように、最大径
部において第１部分２８ａおよび第２部分２８ｂに分割
され、第１部分２８ａおよび第２部分２８ｂのそれぞれ
の外周縁には、ボルト孔３０ａおよび３０ｂを有するフ
ランジ３２ａおよび３２ｂが形成される。また、第１部
分２８ａから受口１４の先端方向に延びて筒状部３４が
形成され、筒状部３４の先端からやや縮径して所定長さ
のリング収納部３６が形成される。リング収納部３６の
先端部内周には、受口１４に挿入されるパイプ３８の引
き出し方向に向かって徐々に縮径されたテーパ面４０が
形成される。なお、筒状部３４の内面と受口１４の先端
部外面との間および継手部２８（第２部分２８ｂ）の端
部内面と受口１４のテーパ部２０外面との間には、継手
部２８がアダプタ２４の外面を摺動し得るように所定の
隙間４２および４４が設けられる。[0010] The housing 26 includes a joint 28 having a spherical inner surface along the outer surface of the adapter 24. Joint part 28
Is divided into a first portion 28a and a second portion 28b at the maximum diameter portion so that the adapter 24 can be easily attached to the outer surface. A bolt hole is formed in each outer peripheral edge of the first portion 28a and the second portion 28b. Flanges 32a and 32b having 30a and 30b are formed. Further, a cylindrical portion 34 is formed extending from the first portion 28a toward the distal end of the receiving port 14, and a ring storage portion 36 having a predetermined length is formed by slightly reducing the diameter from the distal end of the cylindrical portion 34. A tapered surface 40 whose diameter is gradually reduced in the drawing direction of the pipe 38 inserted into the receiving port 14 is formed on the inner periphery of the distal end portion of the ring storage portion 36. Note that a joint portion is provided between the inner surface of the cylindrical portion 34 and the outer surface of the distal end portion of the socket 14 and between the inner surface of the end portion of the joint portion 28 (the second portion 28 b) and the outer surface of the tapered portion 20 of the socket 14. Predetermined gaps 42 and 44 are provided so that 28 can slide on the outer surface of adapter 24.
【００１１】そして、ハウジング２６のリング収納部３
６には、ステンレス等の金属からなる略Ｃ形状の離脱防
止リング４６が収納される。離脱防止リング４６の内周
部は、パイプ３８の挿入時にその外周面との抵抗が小さ
く、引き出し時に抵抗が大きくなるように、たとえば図
３に示すような断面略鋸歯状に形成される。図２を参照
して、ハウジング２６の装着時には、まず、第２部分２
８ｂをゴム輪受容部１８より奥部に配置し、受口１４の
外面にアダプタ２４を装着する。そして、第１部分２８
ａおよび第２部分２８ｂをアダプタ２４の外面に被せ、
フランジ３２ａと３２ｂとをボルト・ナット４８で接合
する。The ring housing 3 of the housing 26
6 stores a substantially C-shaped detachment prevention ring 46 made of metal such as stainless steel. The inner peripheral portion of the separation preventing ring 46 is formed, for example, in a substantially saw-tooth shape as shown in FIG. 3 so that the resistance with the outer peripheral surface is small when the pipe 38 is inserted and the resistance is large when the pipe 38 is drawn. Referring to FIG. 2, when the housing 26 is mounted, first, the second portion 2
8b is disposed behind the rubber ring receiving portion 18, and the adapter 24 is mounted on the outer surface of the receiving port 14. And the first part 28
a and the second portion 28b over the outer surface of the adapter 24;
The flanges 32a and 32b are joined by bolts and nuts 48.
【００１２】接合時には、パイプ３８が、その端部がテ
ーパ部２０の略中央に配置されるように受口１４内に挿
入される。（図１） 施工後、パイプ１２および３８を含む管路が加熱される
等によって伸長した場合には、たとえば図１中２点鎖線
で示すようにパイプ３８がさらに受口１４の奥部へ挿入
される。一方、管路が冷却される等によって縮んだ場合
には、たとえば図４に示すように、縮み量に応じてパイ
プ３８が受口１４から引き出される。パイプ３８を引き
出していくと、離脱防止リング４６がリング収納部３６
内を軸方向に移動し、パイプ３８が一定長さ引き出され
たところでテーパ面４０に当接する。そして、パイプ３
８をさらに引き出そうとすると、テーパ面４０によって
離脱防止リング４６が縮径され、その断面略鋸歯状の内
周部がパイプ３８の外周面に食い込んでいく。したがっ
て、パイプ３８はそれ以上引き出されない。At the time of joining, the pipe 38 is inserted into the receptacle 14 such that the end of the pipe 38 is located substantially at the center of the tapered portion 20. (FIG. 1) In the case where the pipe including the pipes 12 and 38 is stretched due to heating or the like after the construction, the pipe 38 is further inserted deep into the receptacle 14 as shown by a two-dot chain line in FIG. Is done. On the other hand, when the pipe is contracted due to cooling or the like, for example, as shown in FIG. 4, the pipe 38 is drawn out from the receiving port 14 according to the amount of contraction. As the pipe 38 is pulled out, the separation prevention ring 46 is
When the pipe 38 is drawn out by a certain length, the pipe 38 comes into contact with the tapered surface 40. And pipe 3
When the further pulling out of the pipe 8 is performed, the diameter of the separation preventing ring 46 is reduced by the tapered surface 40, and the inner peripheral portion having a substantially saw-toothed cross section bites into the outer peripheral surface of the pipe 38. Therefore, the pipe 38 is not withdrawn any further.
【００１３】また、地盤変動等によって、管路に曲げ応
力が加わった場合には、たとえば図５に示すようにハウ
ジング２６の継手部２８がアダプタ２４の外面を摺動す
ることによって管路が屈曲され、それによって、曲げ応
力が吸収される。なお、この実施例では、受口１４の外
周にアダプタ２４を装着するようにしているが、アダプ
タ２４は継手本体１６に一体に形成されてもよい。When a bending stress is applied to the pipeline due to ground fluctuation or the like, the pipeline is bent by the joint portion 28 of the housing 26 sliding on the outer surface of the adapter 24 as shown in FIG. The bending stress is thereby absorbed. In this embodiment, the adapter 24 is mounted on the outer periphery of the receiving port 14. However, the adapter 24 may be formed integrally with the joint body 16.
【図１】この発明の一実施例を示す図解図である。FIG. 1 is an illustrative view showing one embodiment of the present invention;
【図２】図１の実施例の分解斜視図である。FIG. 2 is an exploded perspective view of the embodiment of FIG.
【図３】離脱防止リングを示す断面図である。FIG. 3 is a sectional view showing a detachment prevention ring.
【図４】図１の実施例においてパイプを最大に引き出し
た状態を示す図解図である。FIG. 4 is an illustrative view showing a state where a pipe is drawn to a maximum in the embodiment of FIG. 1;
【図５】図１の実施例において管路が屈曲した状態を示
す図解図である。FIG. 5 is an illustrative view showing a state where a pipeline is bent in the embodiment of FIG. 1;
１０ …離脱防止継手 １２，３８ …パイプ １４ …受口 １６ …継手本体 １８ …ゴム輪受容部 ２０ …テーパ部 ２２ …ゴム輪 ２４ …アダプタ ２６ …ハウジング ２８ …継手部 ３６ …リング収納部 ４０ …テーパ面 ４６ …離脱防止リング DESCRIPTION OF SYMBOLS 10 ... Detachment prevention joint 12, 38 ... Pipe 14 ... Receptacle 16 ... Joint body 18 ... Rubber ring receiving part 20 ... Tapered part 22 ... Rubber ring 24 ... Adapter 26 ... Housing 28 ... Joint part 36 ... Ring storage part 40 ... Taper Surface 46 ... Separation prevention ring
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松村 信秋 大阪府堺市石津北町64番地 株式会社ク ボタ ビニルパイプ工場内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Nobuaki Matsumura, Inventor 64, Ishizukita-cho, Sakai-shi, Osaka Inside Kubota Vinyl Pipe Factory
Claims (1)
かって徐々に拡径されたテーパ部とを有する受口を含む
継手本体、 前記受口外周に形成される球状外面、 パイプの引き出し方向に向かって徐々に縮径されたテー
パ面を有する所定長さのリング収納部と、前記球状外面
に摺動可能に接触される球状内面を有する継手部とを含
むハウジング、 前記ゴム輪受容部に受容されるゴム輪、および前記リン
グ収納部に収納される離脱防止リングを備える、離脱防
止継手。A joint body including a receiving portion having a rubber ring receiving portion and a tapered portion whose diameter is gradually increased toward a back portion thereof; a spherical outer surface formed on an outer periphery of the receiving portion; A housing including a ring storage portion having a predetermined length having a tapered surface gradually reduced in diameter in a pipe drawing direction, and a joint having a spherical inner surface slidably contacting the spherical outer surface; A detachment prevention joint including a rubber ring received in a ring receiving portion and a detachment prevention ring stored in the ring storage portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4017462A JP2698274B2 (en) | 1992-02-03 | 1992-02-03 | Separation prevention fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4017462A JP2698274B2 (en) | 1992-02-03 | 1992-02-03 | Separation prevention fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05215284A JPH05215284A (en) | 1993-08-24 |
| JP2698274B2 true JP2698274B2 (en) | 1998-01-19 |
Family
ID=11944694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4017462A Expired - Fee Related JP2698274B2 (en) | 1992-02-03 | 1992-02-03 | Separation prevention fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2698274B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5683119A (en) * | 1996-09-10 | 1997-11-04 | Metex Corporation | Pipe joint and seal therefor |
| EP1191269B1 (en) * | 2000-09-22 | 2007-01-10 | Faurecia Abgastechnik GmbH | Tolerance-compensating disconnectable and non-disconnectable pipe connections |
| JP4711349B2 (en) * | 2007-01-26 | 2011-06-29 | Ｕｄトラックス株式会社 | Oil cooler inlet connection structure |
-
1992
- 1992-02-03 JP JP4017462A patent/JP2698274B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05215284A (en) | 1993-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970902 |
|
| LAPS | Cancellation because of no payment of annual fees |