JPS61206892A - Joint fitting for hose - Google Patents
Joint fitting for hoseInfo
- Publication number
- JPS61206892A JPS61206892A JP60046092A JP4609285A JPS61206892A JP S61206892 A JPS61206892 A JP S61206892A JP 60046092 A JP60046092 A JP 60046092A JP 4609285 A JP4609285 A JP 4609285A JP S61206892 A JPS61206892 A JP S61206892A
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- flare
- main body
- hose
- threaded
- 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.)
- Granted
Links
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明はホースの継手金具に係り、特に自動車用油圧ブ
レーキのブレーキパイプとブレーキホースとを接続する
継手の金具に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fitting for a hose, and more particularly to a fitting for a fitting for connecting a brake pipe and a brake hose of a hydraulic brake for an automobile.
(従来の技術)
第2図に本発明の基礎となった従来の継手金具(特公昭
44−997号公報)を示す。ブレーキパイプとしての
管体10の先端部にはフレア12が形成されている。こ
の管体10には、外周面にねじ部14が形成されて管体
10の軸方向に摺動自在にされたフレアナツト16が組
付けられてい。(Prior Art) FIG. 2 shows a conventional joint fitting (Japanese Patent Publication No. 44-997), which is the basis of the present invention. A flare 12 is formed at the tip of a tube body 10 serving as a brake pipe. A flare nut 16 having a threaded portion 14 formed on the outer circumferential surface and slidable in the axial direction of the tube 10 is attached to the tube 10 .
る。Ru.
継手金具は、本体18と内筒20とから構成されている
。本体18の一端部には内周面にフレアナツト16のね
じ部14と螺合されるねじ部22が形成された円筒状螺
合部24が形成され、他端部にはブレーキホースとして
の可視性ホース26の一端が挿入される薄肉筒部28が
形成されている。また、本体18の螺合部24と薄肉筒
部28との間には、外周部にスパナ掛けまたは回り止め
として作用するナツト部30が形成されると共に、内部
に、螺合部24内部と薄肉筒部28内部とを連通する貫
通孔32が穿設された中間部34が設けられている。内
筒20の螺合部24側端部には、フレア12に圧接され
る金属製シート部35が形°成されている。内筒20は
、薄肉筒部28側端部が薄肉筒部28の開口端近傍に突
出するよう本体18の貫通孔32に圧入されて、ろう付
は等によって本体18に溶着される。The joint fitting is composed of a main body 18 and an inner cylinder 20. A cylindrical threaded part 24 is formed at one end of the main body 18 and has a threaded part 22 formed on the inner peripheral surface to be threaded into the threaded part 14 of the flare nut 16, and the other end has a threaded part 24 that is visible as a brake hose. A thin-walled cylindrical portion 28 is formed into which one end of the hose 26 is inserted. Further, between the threaded part 24 of the main body 18 and the thin-walled cylindrical part 28, a nut part 30 that acts as a wrench hook or a rotation stopper is formed on the outer periphery. An intermediate portion 34 is provided with a through hole 32 that communicates with the inside of the cylindrical portion 28 . A metal sheet portion 35 that is pressed against the flare 12 is formed at the end of the inner cylinder 20 on the side of the threaded portion 24 . The inner cylinder 20 is press-fitted into the through hole 32 of the main body 18 so that the end on the side of the thin-walled cylinder part 28 protrudes near the open end of the thin-walled cylinder part 28, and is welded to the main body 18 by brazing or the like.
上記の継手金具は、内筒2oを可撓性ホース26の孔に
挿入しながら可撓性ホース26の一端を薄肉筒部28に
挿入した後、薄肉筒部28を第2図に示すようにかしめ
ることによって可撓性ホース26に取付けられる。そし
て、フレアナツト16を螺合部24に螺合して締付ける
ことによりフレア12とシート部35とが圧接されて、
管体10と可撓性ホース26とが接続される。The above-mentioned joint fitting is made by inserting the inner cylinder 2o into the hole of the flexible hose 26 and inserting one end of the flexible hose 26 into the thin-walled cylinder part 28, and then inserting the thin-walled cylinder part 28 into the thin-walled cylinder part 28 as shown in FIG. It is attached to the flexible hose 26 by caulking. Then, by screwing the flare nut 16 into the threaded part 24 and tightening it, the flare 12 and the seat part 35 are brought into pressure contact.
Pipe body 10 and flexible hose 26 are connected.
(発明が解決しようとする問題点)
しかしながら、かかる従来の継手金具においては、本体
と内筒とがろう付は等によって加熱されることから本体
および内筒共金属で製造され、また本体と円筒とが溶着
により一体化されているため、本体の螺合部の軸線とシ
ート部の中心が一致していないと、締付けたときシート
部が変形しないためフレアとシート部との間に間隙が生
じ油漏れの原因となる。このため、本体および円筒の精
密加工および本体と内筒との精密組付けとが必要になり
、工数が多くなってコスト高になる、という問題があっ
た。また、フレアナツトのゆるみ防止のため、フレアナ
ンドを本体の螺合部に大きな締付は力で締付けることか
ら、脱着の作業性が悪化する、という問題があった。(Problems to be Solved by the Invention) However, in such conventional joint fittings, since the main body and the inner cylinder are heated by brazing, etc., the main body and the inner cylinder are both made of metal, and the main body and the inner cylinder are made of metal. are integrated by welding, so if the axis of the threaded part of the main body and the center of the seat part do not match, the seat part will not deform when tightened, resulting in a gap between the flare and the seat part. This may cause oil leakage. Therefore, precision machining of the main body and the cylinder and precision assembly of the main body and the inner cylinder are required, which increases the number of man-hours and increases the cost. In addition, in order to prevent the flare nut from loosening, the flare nut must be tightened to the threaded portion of the main body with great force, resulting in a problem that the workability of attachment and detachment deteriorates.
本発明は上記問題点を解決すべく成されたもので低コス
トで製造できると共に脱着作業性の良好なホースの継手
金具を提供することを目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a hose fitting that can be manufactured at low cost and has good workability for attachment and detachment.
(問題点を解決するための手段)
上記目的を達成するために本発明は、可撓性ホースの一
端が挿入される筒部およびフレアナツトが螺合されるね
じ部を備えた本体と、可撓性ホースの孔に挿入されるよ
う本体を貫通して筒部の軸方向に延在された内筒と、管
体に形成されたフレアが圧接されるよう内筒のねじ部側
端部外周に形成された弾性体から成るシート部とを含ん
で構成したものである。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a main body including a cylindrical portion into which one end of a flexible hose is inserted and a threaded portion into which a flare nut is screwed; An inner tube extends in the axial direction of the tube through the main body so as to be inserted into the hole of the hose, and an inner tube is attached to the outer periphery of the threaded end of the inner tube so that the flare formed on the tube comes into pressure contact with the inner tube. and a seat portion made of an elastic body.
(作用)
本発明に係る継手金具は、内筒を可撓性ホースの孔に挿
入しなから可撓性ホースを筒部に挿入して筒部をかしめ
ることにより可撓性ホースに取付けられる。また、フレ
アナツトをねじ部に螺合することによりフレアとシート
部とが圧接されて管・体と可撓性ホースとが接続される
。管体と可撓性ホースとを接続するときには、シート部
が弾性体で構成されているため、締付は力によってシー
ト部が圧縮変形されてフレアとシート部とが強固に密着
される。(Function) The joint fitting according to the present invention can be attached to a flexible hose by inserting the inner cylinder into the hole of the flexible hose, inserting the flexible hose into the cylindrical part, and caulking the cylindrical part. . Further, by screwing the flare nut into the threaded portion, the flare and the seat portion are brought into pressure contact, and the tube/body and the flexible hose are connected. When connecting the tubular body and the flexible hose, since the seat portion is made of an elastic body, the tightening force compresses and deforms the seat portion, so that the flare and the seat portion are firmly attached.
(発明の効果)
以上説明したように本発明によれば、シート部がフレア
に対して偏心していても接続時にシート部が圧縮変形し
てフレアに密着されるため、加工誤差をある程度許容し
て低コストで製造できると共に、シート部の復元力によ
ってシート部とフレアとが密着されるため、締付は力を
従来より小さくして脱着時の作業性を良好にすることが
できる、という効果が得られる。(Effects of the Invention) As explained above, according to the present invention, even if the seat part is eccentric with respect to the flare, the seat part is compressively deformed and tightly attached to the flare during connection, so processing errors can be tolerated to some extent. In addition to being able to manufacture at low cost, the restoring force of the seat allows the seat and flare to be brought into close contact with each other, so the tightening force can be reduced compared to conventional methods, improving workability when attaching and detaching. can get.
以下図面を参照して本発明の一実施例を詳細に説明する
。第1図はフレア式メス型管継手に本発明を摘要した実
施例を示すものである。An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an embodiment in which the present invention is applied to a flare type female pipe joint.
本実施例に係る継手金具は、本体18と内筒20とから
構成されている。本体18の一端部には内周面にフレア
ナツトのねじ部と螺合されるねじ部22が形成された螺
合部24が形成され、他端部には可撓性ホースの一端が
挿入される薄肉筒部28が形成されている。また1本体
18の螺合部24と薄肉筒部28との間には、外周部に
スパナ掛けまたは回り止めとして作用するナツト部30
が形成されると共に、螺合部24内部と薄肉筒部28内
部とを連通ずる貫通孔32が穿設された隔壁38を備え
た中間部34が設けられている。The joint fitting according to this embodiment is composed of a main body 18 and an inner cylinder 20. One end of the main body 18 is formed with a threaded part 24 having a threaded part 22 formed on the inner peripheral surface to be threaded into the threaded part of the flare nut, and one end of a flexible hose is inserted into the other end. A thin cylindrical portion 28 is formed. Further, between the threaded part 24 of the main body 18 and the thin-walled cylindrical part 28, there is a nut part 30 on the outer periphery that acts as a wrench hook or a rotation stopper.
An intermediate portion 34 is provided which includes a partition wall 38 having a through hole 32 that communicates the inside of the threaded portion 24 and the inside of the thin-walled cylindrical portion 28 .
内筒20は、一端が螺合部24に突出しかつ他端が薄肉
筒部28の開口端部まで延在される長さQ金属管で構成
され、その一端部外周には、第1図および第3図に示す
ように、合成樹脂製の内筒支持部材40が被覆されてい
る。この内筒支持部材40は、隔壁38の厚さと略同−
の長さでかつ外径が貫通孔32の内径より僅かに大径の
円筒状圧入部42と、管体に形成されたフレアに圧接さ
れる略円錐台状のシート部36とから構成されるいる。The inner cylinder 20 is composed of a metal tube having a length Q, with one end protruding into the threaded part 24 and the other end extending to the open end of the thin-walled cylinder part 28. As shown in FIG. 3, an inner cylinder support member 40 made of synthetic resin is covered. The inner cylinder support member 40 has a thickness that is approximately the same as that of the partition wall 38.
It is composed of a cylindrical press-fitting part 42 having a length of , and an outer diameter slightly larger than the inner diameter of the through hole 32, and a substantially truncated conical seat part 36 that is pressed into contact with a flare formed in the tube body. There is.
内筒20の外周に内筒支持部材4o4被覆するには、射
出成形機で内筒支持部材40を成形して内筒支持部材4
0の孔44に内筒20を圧入してもよく、射出成形時に
入子方式で内筒支持部材40と内筒20とを一体に成形
してもよい。In order to cover the outer circumference of the inner cylinder 20 with the inner cylinder support member 4o4, the inner cylinder support member 40 is molded using an injection molding machine.
The inner cylinder 20 may be press-fitted into the hole 44 of 0, or the inner cylinder support member 40 and the inner cylinder 20 may be integrally molded by a nesting method during injection molding.
上記のように内筒支持部材40が被覆された内筒20は
、螺合部24側から中間部34の貫通孔32に挿入され
、圧入部42が貫通孔32に圧入されて本体18に組付
けられる。このとき、圧入部42は隔壁38によって圧
縮され、合成樹脂製の圧入部42の復元力により隔壁3
8と圧入部42および圧入部42と内筒20の外周とが
密着されて油漏れを防止することができる。The inner cylinder 20 covered with the inner cylinder support member 40 as described above is inserted into the through hole 32 of the intermediate part 34 from the threaded part 24 side, and the press-fitting part 42 is press-fitted into the through-hole 32 and assembled into the main body 18. Can be attached. At this time, the press-fitting part 42 is compressed by the partition wall 38, and the restoring force of the synthetic resin press-fitting part 42 causes the partition wall 3
8 and the press-fitting part 42 and the press-fitting part 42 and the outer periphery of the inner cylinder 20 are in close contact with each other, thereby preventing oil leakage.
このように組付けられた継手金具は、従来と同様に、薄
肉筒部28がかしめられて可撓性ホースの一端に取り付
けられると共にフレアナンドが螺合されて締付けられる
ことによってフレアとシート部36とが圧接されて管体
と可撓性ホースとが接続される。この接続時には、フレ
アによって合成樹脂製のシート部が圧縮変形されるため
、内筒と内筒支持部材とは更に強固に密着される。また
、フレアに対してシート部が偏心していても、シート部
がフレアの中心方向に圧縮変形してフレアに密着される
。更に、内筒は合成樹脂製の圧入部を介して本体の隔壁
に支持されているため、接続後可撓性ホースが長手方向
に対して直交する方向に移動すると合成樹脂の復元力に
抗して内筒が可撓性ホースと共に移動し、可撓性ホース
が内筒の端部で折曲されることがないので、可撓性ホー
スの寿命を長くすることができる。また、従来ではろう
付時の加熱により金属材料が焼なまされて軟化し、かし
め時に内管がつぶれることがら引張強度の高い材料を使
用する必要があったが、本実施例ではろう付することな
く圧入のみによって継手金具を組付けているため、強度
の低い安価な材料を使用することができる。In the joint fitting assembled in this way, the thin-walled cylindrical portion 28 is caulked and attached to one end of the flexible hose, and the flare and the seat portion 36 are connected by screwing and tightening the flare ring. are pressed together to connect the tube body and the flexible hose. At the time of this connection, the synthetic resin sheet portion is compressed and deformed by the flare, so that the inner cylinder and the inner cylinder supporting member are brought into even stronger contact with each other. Furthermore, even if the seat portion is eccentric with respect to the flare, the seat portion is compressively deformed toward the center of the flare and is brought into close contact with the flare. Furthermore, since the inner cylinder is supported by the bulkhead of the main body via a press-fitted part made of synthetic resin, if the flexible hose moves in a direction perpendicular to the longitudinal direction after connection, it will resist the restoring force of the synthetic resin. Since the inner cylinder moves together with the flexible hose and the flexible hose is not bent at the end of the inner cylinder, the life of the flexible hose can be extended. In addition, in the past, the metal material was annealed and softened due to heating during brazing, and the inner tube was crushed during caulking, so it was necessary to use a material with high tensile strength, but in this example, brazing Since the fittings are assembled only by press-fitting, low-strength and inexpensive materials can be used.
なお、上記ではフレア式メス型管継手に本発明を適用し
た例について説明したが、本発明はフレア式オス型管継
手に通用することも可能である。In addition, although the example in which the present invention is applied to a flare type female pipe joint has been described above, the present invention can also be applied to a flare type male pipe joint.
また、シート部を合成樹脂で構成した例について説明し
たが、耐油性のゴム等の弾性体で構成することもできる
。更に、内筒を本体に溶着した後、弾性体で形成された
シート部を、内筒の螺合部側端部外周に被覆するように
してもよい。Furthermore, although an example in which the seat portion is made of synthetic resin has been described, it may also be made of an elastic body such as oil-resistant rubber. Further, after the inner cylinder is welded to the main body, a sheet portion made of an elastic body may be applied to cover the outer periphery of the end of the inner cylinder on the threaded portion side.
第1図は本発明の一実施例を示す部分断面図、第2図は
従来の継手を示す説明図、第3図は上記実施例の内筒と
内情支持部材とを示す部分断面図である。
18・・・本 体、 20・・・内 筒、22・・
・ねじ部、 28・・・筒 部、36・・・シート
部。FIG. 1 is a partial sectional view showing one embodiment of the present invention, FIG. 2 is an explanatory view showing a conventional joint, and FIG. 3 is a partial sectional view showing the inner cylinder and internal information support member of the above embodiment. . 18...Main body, 20...Inner cylinder, 22...
- Threaded part, 28...Cylinder part, 36... Seat part.
Claims (1)
トが螺合されるねじ部を備えた本体と、前記可撓性ホー
スの孔に挿入されるよう前記本体を貫通して前記筒部の
軸方向に延在された内筒と、管体に形成されたフレアが
圧接されるよう前記内筒の前記ねじ部側端部外周に形成
された弾性体から成るシート部と、を含むホースの継手
金具。A main body including a cylindrical part into which one end of the flexible hose is inserted and a threaded part into which a flare nut is screwed; A hose comprising an inner cylinder extending in the axial direction, and a seat made of an elastic body formed on the outer periphery of the threaded part side end of the inner cylinder so that a flare formed on the pipe body is pressed against the inner cylinder. Fittings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60046092A JPS61206892A (en) | 1985-03-08 | 1985-03-08 | Joint fitting for hose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60046092A JPS61206892A (en) | 1985-03-08 | 1985-03-08 | Joint fitting for hose |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61206892A true JPS61206892A (en) | 1986-09-13 |
JPH0510554B2 JPH0510554B2 (en) | 1993-02-10 |
Family
ID=12737342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60046092A Granted JPS61206892A (en) | 1985-03-08 | 1985-03-08 | Joint fitting for hose |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61206892A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63191520A (en) * | 1987-01-30 | 1988-08-09 | Ookawa Seira Kogyo Kk | Manufacture of joint metal fitting for hydraulic hose |
-
1985
- 1985-03-08 JP JP60046092A patent/JPS61206892A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63191520A (en) * | 1987-01-30 | 1988-08-09 | Ookawa Seira Kogyo Kk | Manufacture of joint metal fitting for hydraulic hose |
Also Published As
Publication number | Publication date |
---|---|
JPH0510554B2 (en) | 1993-02-10 |
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