JPH042839B2 - - Google Patents
Info
- Publication number
- JPH042839B2 JPH042839B2 JP63247057A JP24705788A JPH042839B2 JP H042839 B2 JPH042839 B2 JP H042839B2 JP 63247057 A JP63247057 A JP 63247057A JP 24705788 A JP24705788 A JP 24705788A JP H042839 B2 JPH042839 B2 JP H042839B2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- nut
- joint body
- 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.)
- Expired - Lifetime
Links
- 210000002445 nipple Anatomy 0.000 claims description 15
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000002788 crimping Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 fluororesin Polymers 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000012633 leachable Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ホースの端末に取り付けられる継
手金具に係り、特に継手本体が合成樹脂が形成さ
れた継手金具に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a joint fitting attached to the end of a hose, and particularly to a joint fitting whose main body is made of synthetic resin.
従来、塗装用、食品製造用などの液体配管系に
使用されるホースの端末部分には、継手本体の中
央にスパナ掛け用のナツト部を有し、その一端側
にニツプル部とスリーブとを備えた継手金具が接
続用として結合されている。この種の継手金具
は、一般にステンレス、鉄、黄銅等の金属材料か
らなり、継手本体のニツプル部と、このニツプル
部の外側に同軸状に配置されるスリーブとによつ
て形成される環状空間に、ホースの端部を挿入し
た状態で加締機の円錐ダイスにスリーブ部分をセ
ツトし、そして継手本体のナツト部を他端側から
押圧することにより、スリーブを塑性変形させて
縮径し、スリーブと継手本体のニツプル部とでホ
ースを挾持するようになつている（実開昭61−
112191号、実開昭62−52390号等参照）。
Conventionally, the end portion of a hose used in liquid piping systems for painting, food manufacturing, etc. has a nut section for a wrench in the center of the joint body, and a nipple section and a sleeve at one end. The joint fittings are combined for connection. This type of fitting is generally made of a metal material such as stainless steel, iron, or brass, and is located in an annular space formed by a nipple part of the fitting body and a sleeve coaxially arranged outside the nipple part. , set the sleeve part in the conical die of the crimping machine with the end of the hose inserted, and press the nut part of the joint body from the other end to plastically deform the sleeve and reduce its diameter. The hose is held between the nipple part of the fitting body (Utility Model 61-
(See No. 112191, Utility Model Publication No. 62-52390, etc.)
ところで、高純度薬品や純水などを移送する場
合には、ステンレスでも溶出物の問題があること
から、継手本体の樹脂化が望まれている。しかし
ながら、上記アセンブリ方法では、スリーブを加
締める際に継手本体のナツト部に加締機からの大
きな力がかかるため、機械的強度が金属に比べて
低い合成樹脂でこれを置き換えることは、これま
た困難であつた。
By the way, when transferring high-purity chemicals, pure water, etc., even stainless steel has the problem of leachables, so it is desired that the joint body be made of resin. However, in the above assembly method, a large force is applied from the crimping machine to the nut part of the joint body when crimping the sleeve, so it is difficult to replace it with a synthetic resin whose mechanical strength is lower than that of metal. It was difficult.
そこで、この発明は、これら従来技術の問題点
に鑑み、継手本体が合成樹脂製でありながら、従
来の方法でのアセンブリが可能な継手金具の提供
をその目的とする。 SUMMARY OF THE INVENTION In view of these problems in the prior art, it is an object of the present invention to provide a joint fitting whose main body is made of synthetic resin and which can be assembled using conventional methods.
上記目的を達成するために、この発明による継
手金具では、継手本体のナツト部の一端側に設け
られたニツプル部と、このニツプル部の外側に同
軸状に配したスリーブとの間に形成される環状空
間にホースを挿入し、スリーブを外周から加締め
てホースを固着する継手金具において、前記継手
本体は、合成樹脂からなると共にナツト部に軸心
と平行な複数の貫通孔を備え、前記スリーブは、
該ナツト部の貫通孔に挿通される少なくともナツ
ト部の厚さの長さを有する複数の突起を備えた構
成とする。
In order to achieve the above object, in the joint fitting according to the present invention, a nipple part provided on one end side of the nut part of the joint body and a sleeve disposed coaxially on the outside of this nipple part are provided. In a joint fitting in which a hose is inserted into an annular space and the sleeve is crimped from the outer periphery to secure the hose, the joint body is made of synthetic resin and has a plurality of through holes parallel to the axis in the nut portion, and the sleeve teeth,
A plurality of protrusions having a length at least equal to the thickness of the nut are inserted into the through hole of the nut.
〔作用〕
上記構成の継手金具において、継手本体のナツ
ト部に軸心に平行な複数の貫通孔が設けられ、さ
らにスリーブのナツト部側には複数の突起が設け
られ、これらの突起がナツト部の貫通孔を取り抜
けてナツト部の他端側に突出している。したがつ
て、ホースを接続する際に、継手金具をナツト部
の他端側からスリーブの方向に向けて押圧する
と、スリーブの突起が加締機の圧力を受け、継手
本体のナツト部には圧力が直接かかることはない
ので、継手本体を合成樹脂で形成してもアセンブ
リ時に破損することがない。[Operation] In the fitting having the above structure, a plurality of through holes parallel to the axis are provided in the nut portion of the fitting body, and a plurality of projections are provided on the nut portion side of the sleeve, and these projections are connected to the nut portion. It passes through the through hole and protrudes to the other end of the nut part. Therefore, when connecting a hose, when the fitting is pressed from the other end of the nut toward the sleeve, the protrusion of the sleeve receives pressure from the caulking machine, and the nut of the fitting body receives pressure. Since there is no direct contact with the joint body, it will not be damaged during assembly even if the joint body is made of synthetic resin.
第１図は、この発明による継手金具の一実施例
を示す部分縦断側面図で、図示の継手金具１は、
継手本体１０とスリーブ２０とから構成されてい
る。
FIG. 1 is a partial vertical sectional side view showing an embodiment of a joint fitting according to the present invention, and the illustrated joint fitting 1 is as follows:
It is composed of a joint body 10 and a sleeve 20.
第１図において、継手本体１０は合成樹脂から
なり、中央に設けられたスパナ掛け用のナツト部
１１の一端側にホースに挿入されるニツプル部１
２を有し、このニツプル部１２の外周面には環状
係止溝１３が設けられ、ナツト部１１の他端側に
は、他の継手金具あるいは機器との接続に供され
る雄ねじ部１４が設けられている。また、ナツト
部１１の周縁部分には、継手本体１０の軸心と平
行に四個の貫通孔１５が互いに等間隔で設けられ
ている。なお、継手本体１０を構成する合成樹脂
素材としては、例えばポリエーテルエーテルケト
ン、フツ素樹脂、ポリアセタール、ポリプロピレ
ン、ポリアミドなどの硬質樹脂が挙げられる。 In FIG. 1, the joint body 10 is made of synthetic resin, and has a nipple part 1 inserted into the hose at one end side of a nut part 11 for attaching a wrench provided in the center.
2, an annular locking groove 13 is provided on the outer peripheral surface of the nipple portion 12, and a male threaded portion 14 is provided on the other end side of the nut portion 11 for connection with other fittings or equipment. It is provided. Further, four through holes 15 are provided in the peripheral portion of the nut portion 11 in parallel with the axis of the joint body 10 at equal intervals. Note that examples of the synthetic resin material constituting the joint body 10 include hard resins such as polyetheretherketone, fluororesin, polyacetal, polypropylene, and polyamide.
スリーブ２０は金属からなる筒状体であつて、
第２図に詳細に示されるように、筒状部２１の端
面に四個の突起２２をその軸心と平行に且つ等間
隔で備えている。このスリーブ２０は、前記継手
本体１０のニツプル部１２の外側に環状空間Ｓを
隔てて同軸状に嵌挿され、その先端部分に設けら
れた四個の突起２２が、継手本体１０のナツト部
１１に設けられた四個の貫通孔１５をそれぞれ貫
通してナツト部１１の他端側に突出している。そ
して、継手本体１０のナツト部１１には隣接する
ニツプル基部１６において、スリーブ２０は外周
側から加締められ、継手本体１０に係止されてい
る。ここで、ナツト部１１の貫通孔１５がスリー
ブ２０の突起２２よりも大きく形成されているか
ら、スリーブ２０の筒状部２１の突起２２側の外
周縁部を加締めて継手本体１０に係止する際に、
突起２２の変形や破損が阻止される。なお、スリ
ーブ２０の上記部分は必ずしも加締める必要はな
く、スリーブ２０の突起２２をナツト部１１の貫
通孔１５に挿通したままにしておき、ホースを取
り付ける時のスリーブ２０自身の縮径変形によつ
て継手本体１０に係止されるようにしてもよい。
この場合、スリーブ２０の内周面にも継手本体１
０のニツプル部１２と同様な環状溝を設けておく
と好都合である。なお、スリーブ２０の突起２２
は、別部品として形成したものをロウ付け等によ
り筒状部２１に固着したり、あるいは切削により
筒状部２１と一体に削り出してもよい。 The sleeve 20 is a cylindrical body made of metal,
As shown in detail in FIG. 2, four protrusions 22 are provided on the end surface of the cylindrical portion 21 in parallel with its axis and at equal intervals. This sleeve 20 is coaxially fitted to the outside of the nipple portion 12 of the joint body 10 with an annular space S in between. They pass through four through holes 15 provided in the nut portion 11, respectively, and protrude to the other end side of the nut portion 11. The sleeve 20 is crimped from the outer circumferential side at the nipple base 16 adjacent to the nut portion 11 of the joint body 10 and is locked to the joint body 10. Here, since the through hole 15 of the nut part 11 is formed larger than the protrusion 22 of the sleeve 20, the outer peripheral edge of the cylindrical part 21 of the sleeve 20 on the protrusion 22 side is crimped to lock it to the joint body 10. When doing,
Deformation and damage of the protrusion 22 are prevented. Note that the above-mentioned portion of the sleeve 20 does not necessarily need to be crimped, and the protrusion 22 of the sleeve 20 is left inserted into the through hole 15 of the nut portion 11, so that the diameter of the sleeve 20 itself is reduced when the hose is attached. It may be made to be locked to the joint main body 10 by a lever.
In this case, the joint body 1 is also attached to the inner peripheral surface of the sleeve 20.
It is advantageous to provide an annular groove similar to the nipple portion 12 of No. 0. Note that the protrusion 22 of the sleeve 20
may be formed as a separate part and fixed to the cylindrical part 21 by brazing or the like, or may be cut out integrally with the cylindrical part 21 by cutting.
このようにして構成された継手金具１とホース
とを結合するにあたつては、まずホースの端末部
分を継手本体１０のニツプル部１２とスリーブ２
０との間の環状空間Ｓに挿入する。そして、これ
を加締機の円錐ダイスにセツトし、継手本体１０
の他端側（雄ねじ部１４側）から押圧する。この
押圧により、スリーブ２０が第３図に示すように
円錐ダイスＤのテーパ面にそつて滑りながら縮径
変形し、その結果、ホースＨはスリーブ２０と継
手本体１０のニツプル部１２とで挾圧され、充分
な引抜強度を備えた構造となる。ここで、継手金
具１をその他端側から一端側に向けて軸心方向に
押圧する加締機のプツシヤーＰは、スリーブ２０
の突起２２に当接してこれを押圧するから、継手
本体１０のナツト部１１に加締機の圧力が直接か
かることはほとんどない。このため、継手本体１
０が合成樹脂製であつても、ホースＨの取付時に
破損することがなく、確実にアセンブリすること
ができる。 When connecting the hose to the joint fitting 1 constructed in this manner, first connect the end portion of the hose to the nipple portion 12 of the joint body 10 and the sleeve 2.
Insert into the annular space S between 0 and 0. Then, set this in the conical die of the caulking machine, and
Press from the other end side (male thread part 14 side). Due to this pressure, the sleeve 20 is deformed in diameter while sliding along the tapered surface of the conical die D as shown in FIG. This results in a structure with sufficient pull-out strength. Here, the pusher P of the caulking machine that presses the fitting 1 in the axial direction from the other end side to the one end side is the sleeve 20.
Since the bolt contacts and presses the protrusion 22 of the joint body 10, the pressure of the caulking machine is hardly applied directly to the nut portion 11 of the joint body 10. For this reason, the joint body 1
Even if the hose H is made of synthetic resin, it will not be damaged when the hose H is attached and can be assembled reliably.
以上説明したように、この発明による継手金具
にあつては、スリーブに継手本体のナツト部を軸
心方向に貫通する複数の突起を設け、スリーブを
縮径変形する際に、加締機のプツシヤーの圧力を
これら突起で受ける構成になつているから、従来
構造の継手金具のように加締機の圧力が継手本体
のナツト部にかかることはほとんどない。したが
つて、継手本体が合成樹脂製であつても。従来と
同様にアセンブリを行なうことができ、その実用
上の効果は極めて大である。
As explained above, in the joint fitting according to the present invention, the sleeve is provided with a plurality of protrusions passing through the nut portion of the joint body in the axial direction, and when the sleeve is deformed to reduce its diameter, the pusher of the caulking machine Since the pressure is received by these protrusions, the pressure of the caulking machine is hardly applied to the nut part of the joint body, unlike the conventional joint fittings. Therefore, even if the joint body is made of synthetic resin. Assembly can be carried out in the same manner as before, and its practical effects are extremely large.
なお、この発明は上記実施例に限定されるもの
ではなく、例えばスリーブの突起の形状や数、あ
るいはその位置を変更するなど、この発明の技術
思想内での種々の変更はもちろん可能である。 It should be noted that the present invention is not limited to the above-described embodiments, and of course various changes can be made within the technical idea of the present invention, such as changing the shape, number, or position of the protrusions on the sleeve.
第１図はこの発明による継手金具の一実施例を
示す部分縦断側面図、第２図は第１図実施例の継
手金具において用いるスリーブの斜視図、第３図
はこの発明による継手金具にホースを固定接続す
るときの状態を示す概略説明図である。
１０：継手本体、１１：ナツト部、１２：ニツ
プル部、１５：貫通孔、２０：スリーブ、２２：
突起。
FIG. 1 is a partial vertical sectional side view showing one embodiment of the fitting according to the present invention, FIG. 2 is a perspective view of a sleeve used in the fitting according to the embodiment of FIG. 1, and FIG. FIG. 2 is a schematic explanatory diagram showing a state when the two are fixedly connected. 10: Joint body, 11: Nut part, 12: Nipple part, 15: Through hole, 20: Sleeve, 22:
protrusion.
Claims (1)
ツプル部と、このニツプル部の外側に同軸状に配
したスリーブとの間に形成される環状空間にホー
スを挿入し、スリーブを外周から加締めてホース
を固着する継手金具において、前記継手本体は、
合成樹脂からなると共にナツト部に軸心と平行な
複数の貫通孔を備え、前記スリーブは、該ナツト
部の貫通孔に挿通される少なくともナツト部の厚
さの長さを有する複数の突起を備えていることを
特徴とする継手金具。1 Insert the hose into the annular space formed between the nipple part provided at one end of the nut part of the joint body and the sleeve coaxially arranged outside this nipple part, and swage the sleeve from the outer periphery. In a joint fitting for fixing a hose, the joint body includes:
The sleeve is made of synthetic resin and has a plurality of through holes parallel to the axis of the nut, and the sleeve has a plurality of protrusions having a length at least equal to the thickness of the nut, which are inserted into the through holes of the nut. A fitting that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63247057A JPH0293188A (en) | 1988-09-30 | 1988-09-30 | Joint metal fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63247057A JPH0293188A (en) | 1988-09-30 | 1988-09-30 | Joint metal fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0293188A JPH0293188A (en) | 1990-04-03 |
| JPH042839B2 true JPH042839B2 (en) | 1992-01-21 |
Family
ID=17157780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63247057A Granted JPH0293188A (en) | 1988-09-30 | 1988-09-30 | Joint metal fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0293188A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH084959A (en) * | 1994-06-22 | 1996-01-12 | Junkosha Co Ltd | Swivel joint and method of manufacturing the same |
-
1988
- 1988-09-30 JP JP63247057A patent/JPH0293188A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0293188A (en) | 1990-04-03 |
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