JP3072976B2 - Hose fittings and brake hoses - Google Patents
Hose fittings and brake hosesInfo
- Publication number
- JP3072976B2 JP3072976B2 JP08310915A JP31091596A JP3072976B2 JP 3072976 B2 JP3072976 B2 JP 3072976B2 JP 08310915 A JP08310915 A JP 08310915A JP 31091596 A JP31091596 A JP 31091596A JP 3072976 B2 JP3072976 B2 JP 3072976B2
- Authority
- JP
- Japan
- Prior art keywords
- nipple
- head
- hose
- socket
- 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
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Forging (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ホース用口金具及
びホース端部に口金具を取付けたブレーキホースに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose fitting and a brake hose having a fitting attached to an end of the hose.
【０００２】[0002]
【従来の技術】工業用ホースの取付け端部には、着脱
性、漏洩防止性及び信頼性等を配慮したホース用口金具
が使用されている。従来から知られているこの種ホース
用口金具の一例を図４に示す。口金具２０は、外金具２
１とこの外金具２１の内側に銅ロウ付等で固定された内
金具２２とからなっている。外金具２１は、頭部２３と
ソケット部２４とで構成されており、頭部２３は内側に
ねじ部２５を有し、外側に溝部２６及びツバ部２７を有
している。内金具２２は、シール部２８と円筒形状のニ
ップル部２９とで構成されており、シール部２８は、頭
部２３の内側に位置している。また、内金具２２には、
ニップル部２９からシール部２８まで貫通する軸穴３０
が形成されている。2. Description of the Related Art At a mounting end of an industrial hose, a hose fitting is used in consideration of detachability, leakage prevention and reliability. FIG. 4 shows an example of this type of hose fitting conventionally known. The fitting 20 is the outer fitting 2
1 and an inner fitting 22 fixed inside the outer fitting 21 with copper brazing or the like. The outer fitting 21 includes a head portion 23 and a socket portion 24. The head portion 23 has a screw portion 25 inside and a groove portion 26 and a brim portion 27 outside. The inner fitting 22 includes a seal part 28 and a cylindrical nipple part 29, and the seal part 28 is located inside the head 23. In addition, the inner metal fitting 22 includes:
Shaft hole 30 penetrating from nipple portion 29 to seal portion 28
Are formed.
【０００３】この種のホース用口金具を製造する一つの
方法としては、図５に示すように、頭部２３及びソケッ
ト部２４を備えた外金具２１を塑性加工により成形し、
これとは別に図６に示すように、シール部２８及びニッ
プル部２９を備えた内金具２２を機械加工により作り、
内金具２２のフランジ部３１を外金具２１の取付穴３２
に嵌合して組合せ、この嵌合部をロウ付けすることによ
り一体化するようにしている。ロウ付けは、ロウ材の融
点以上の高い温度で行われ、例えば銅ロウ付けの場合は
１，１００〜１，１５０℃で行われる。As one method of manufacturing a hose fitting of this kind, as shown in FIG. 5, an outer fitting 21 having a head 23 and a socket 24 is formed by plastic working.
Separately, as shown in FIG. 6, the inner fitting 22 having the seal portion 28 and the nipple portion 29 is formed by machining.
The flange 31 of the inner fitting 22 is attached to the mounting hole 32 of the outer fitting 21.
, And combined with each other, and the fitting portion is integrated by brazing. The brazing is performed at a temperature higher than the melting point of the brazing material. For example, in the case of copper brazing, the brazing is performed at 1,100 to 1,150 ° C.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら上記の従
来技術には、次のような問題があった。However, the above-mentioned prior art has the following problems.
【０００５】（１）内金具２２のニップル部２９は細く
て長いので、軸穴３０を機械加工で穴あけするには時間
がかかり、また、穴あけの際には、加工方法を適切に選
ばなければ軸穴３０が斜めになることがあり、ホースカ
シメ時の性能を低下させる。(1) Since the nipple portion 29 of the inner metal fitting 22 is thin and long, it takes time to drill the shaft hole 30 by machining, and when drilling, it is necessary to select an appropriate processing method. The shaft hole 30 may be skewed, deteriorating the performance of hose crimping.
【０００６】（２）ニップル部３の形状を出すのには切
削加工が必要なので、切粉の処理が大変であり、材料の
歩留りも悪い。(2) Since cutting processing is required to obtain the shape of the nipple portion 3, the processing of chips is difficult and the yield of the material is poor.
【０００７】（３）ロウ付けの高熱により、ニップル部
３が焼鈍されるので、ホースカシメ時にニップルつぶれ
が生じやすい。(3) Since the nipple portion 3 is annealed due to the high heat of brazing, the nipple is likely to collapse during hose crimping.
【０００８】（４）ロウ材の付け忘れや作業中のロウ材
の落下などによりロウ付けが適正に行われないと、液
（オイル等）洩れの原因になる。(4) If brazing is not performed properly due to forgetting to braze or dropping of brazing material during work, liquid (oil or the like) may leak.
【０００９】（５）複数の部品を組み付けるためフラン
ジ部３１と取付穴３２の嵌合部の寸法精度を高く維持し
なければならず、管理工数が増える。(5) In order to assemble a plurality of components, the dimensional accuracy of the fitting portion between the flange portion 31 and the mounting hole 32 must be kept high, and the number of management steps increases.
【００１０】（６）組付け及びロウ付けなどの作業がコ
スト高の原因となる。(6) Operations such as assembling and brazing cause high costs.
【００１１】本発明は、上記のような問題点を解決する
ためになされたもので、外金具と内金具の接続をなくす
ことにより信頼性を向上でき、また、製造工程を簡略化
できることにより低廉化を実現できるホース用口金具の
提供を目的とするものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the reliability can be improved by eliminating the connection between the outer and inner metal fittings, and the manufacturing process can be simplified to reduce the cost. An object of the present invention is to provide a hose fitting capable of realizing a hose.
【００１２】[0012]
【課題を解決するための手段】上記課題を解決すべく、
本発明のホース用口金具は、管状のニップル部と、ニッ
プル部の外周に設けられた管状のソケット部と、ニップ
ル部とソケット部とを一方端において連結する頭部とを
有し、ニップル部、ソケット部及び頭部とが同一材料で
一体成形されていると共に、ニップル部は同一材料で一
体成形された同一体積及び外径の中実突起部を塑性加工
することによって形成されていることを特徴とするもの
である。Means for Solving the Problems In order to solve the above problems,
The hose fitting of the present invention has a tubular nipple portion, a tubular socket portion provided on the outer periphery of the nipple portion, and a head connecting the nipple portion and the socket portion at one end, and a nipple portion. , Socket and head are integrally formed of the same material, and the nipple is made of the same material.
Plastic processing of solid projections with the same volume and outer diameter
And is characterized by being formed by
【００１３】本発明においては、ニップル部のみなら
ず、ソケット部、頭部も塑性加工により形成されたもの
であることが好ましい。また、頭部外周に設けられるツ
バ部及び頭部の径方向内方に突出して設けられるシール
部も塑性加工により形成されたものであることが好まし
い。更に、頭部の径方向内方の空間の内縁に沿って設け
られるネジ部の塑性加工により形成されることが好まし
い。In the present invention, not only the nipple portion but also the socket portion and the head are preferably formed by plastic working. It is also preferable that the collar provided on the outer periphery of the head and the seal provided to protrude inward in the radial direction of the head are also formed by plastic working. Furthermore, it is preferable that the screw portion provided along the inner edge of the space radially inward of the head is formed by plastic working.
【００１４】[0014]
【発明の実施の形態】本発明のホース用口金具は、図１
に示すように、管状のニップル部２と、ニップル部２の
外周に設けられた管状のソケット部３と、ニップル部２
とソケット部３とを一方端において連結する頭部４とを
有し、ニップル部２、ソケット部３及び頭部４とが同一
材料で一体成形されていると共に、ニップル部は塑性加
工により形成されているため、流体漏れなどのおそれが
なくなって信頼性を向上でき、また、塑性加工を主体と
した方法により製造されるため、寸法安定性に優れると
共に、製造工程の簡略化により低廉化をはかることがで
きる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The hose fitting of the present invention is shown in FIG.
As shown in FIG. 1, a tubular nipple portion 2, a tubular socket portion 3 provided on the outer periphery of the nipple portion 2, and a nipple portion 2
And a head portion 4 connecting the socket portion 3 at one end. The nipple portion 2, the socket portion 3 and the head portion 4 are integrally formed of the same material, and the nipple portion is formed by plastic working. As a result, there is no danger of fluid leakage, etc., and reliability can be improved.In addition, since the method is manufactured by a method mainly based on plastic working, excellent dimensional stability is achieved, and cost reduction is achieved by simplifying the manufacturing process. be able to.
【００１５】[0015]
【実施例】図１は、本発明のホース用口金具の具体的一
実施例の説明図である。このホース用口金具１は、ニッ
プル部２と、ニップル部２の外周に設けられたソケット
部３と、ニップル部２とソケット部３を一方端において
連結する頭部４とからなり、これらニップル部２、ソケ
ット部３及び頭部４とは同一材料で一体成形されてい
る。ソケット部３と頭部４との境界位置には段状のツバ
部６が形成されている。ソケット部３は、ホース端の外
周に適宜嵌め合わされるような外径及び長さの管状に形
成されている。ニップル部２は、ソケット部３と略同じ
長さで、且つ所定の外径と内径を有した細径パイプとし
て形成されている。ニップル部２は、ツバ部６の径方向
内方に形成された軸壁７から延長して一体的に形成され
ている。頭部４の径方向内方には、一端に開口した空間
９が形成され、この空間９の外縁に沿ってネジ溝が螺刻
されて雌ネジ部５が形成されている。ニップル部２の軸
穴８は、軸壁７を貫通して頭部４に形成された空間９側
に突き抜けている。軸壁７の空間９側には円錐台状のシ
ール部１０が形成され、その軸心を軸穴８が貫通してい
る。このほか頭部４の外周面には溝部１１が形成されて
いる。FIG. 1 is an explanatory view of a specific embodiment of a hose fitting according to the present invention. The hose fitting 1 includes a nipple portion 2, a socket portion 3 provided on the outer periphery of the nipple portion 2, and a head portion 4 connecting the nipple portion 2 and the socket portion 3 at one end. 2, the socket part 3 and the head part 4 are integrally formed of the same material. A step-shaped collar 6 is formed at a boundary position between the socket 3 and the head 4. The socket portion 3 is formed in a tubular shape having an outer diameter and a length so as to be appropriately fitted to the outer periphery of the hose end. The nipple portion 2 is formed as a small-diameter pipe having substantially the same length as the socket portion 3 and having predetermined outer and inner diameters. The nipple 2 extends from a shaft wall 7 formed radially inward of the flange 6 and is integrally formed. A space 9 opening at one end is formed radially inward of the head 4, and a thread groove is threaded along an outer edge of the space 9 to form a female screw portion 5. The shaft hole 8 of the nipple portion 2 penetrates through the shaft wall 7 and penetrates into the space 9 formed in the head 4. A frustoconical seal portion 10 is formed on the space 9 side of the shaft wall 7, and a shaft hole 8 penetrates the shaft center. In addition, a groove 11 is formed on the outer peripheral surface of the head 4.
【００１６】次に、本発明のホース用口金具の製造方法
の一実施例を説明する。まず、図２に示すように、突起
部１８と、ソケット部３と基部１６とが一体化された中
間成形品（ブランク材）１５を塑性加工にて成形する。
この中間成形品１５を例えば冷間鍛造にて成形する場合
は、材料として冷間圧造用炭素鋼線（ＳＷＣＨ１２又は
ＳＷＣＨ１５）か、これの相当品を選定し、通常焼鈍処
理、潤滑処理したものを用いる。また塑性加工設備とし
ては、多段式のパーツフォーマーなどを用いる。中間成
形品１５は、円柱状の突起部１８と、突起部１８の外周
に設けられたソケット部３と、突起部１８とソケット部
３とを一方端において連結する基部１６とを有し、突起
部１８、ソケット部３及び基部１６とは同一材料で一体
成形されており、基部１６にはネジ部５が形成される下
穴１７が設けられている。突起部１８は、円柱状をして
おり、ニップル部２と等しい体積及び外径有し、軸壁７
に相当する区画壁部分１９に一端が連設一体化されてい
る。Next, one embodiment of the method of manufacturing the hose fitting of the present invention will be described. First, as shown in FIG. 2, an intermediate molded product (blank material) 15 in which the projection 18, the socket 3, and the base 16 are integrated is molded by plastic working.
When the intermediate molded product 15 is formed by, for example, cold forging, a carbon steel wire for cold heading (SWCH12 or SWCH15) or an equivalent product thereof is selected as a material, and a material subjected to normal annealing and lubrication is used. Used. As the plastic working equipment, a multi-stage parts former or the like is used. The intermediate molded product 15 has a columnar projection 18, a socket 3 provided on the outer periphery of the projection 18, and a base 16 connecting the projection 18 and the socket 3 at one end. The part 18, the socket part 3 and the base part 16 are integrally formed of the same material, and the base part 16 is provided with a pilot hole 17 in which the screw part 5 is formed. The protrusion 18 has a columnar shape, has the same volume and outer diameter as the nipple 2, and has a shaft wall 7.
One end is continuously provided and integrated with the partition wall portion 19 corresponding to the above.
【００１７】次いで、中間成形品１５には、焼鈍を施す
ことが好ましい。これは後工程の塑性加工を容易にする
ためのものであり、焼鈍条件を調整することにより、突
起部１８をできるだけ軟らかくする。その焼鈍条件とし
ては、例えば、８８０℃〜９００℃で約２時間加熱した
後、７時間以上かけて炉中で徐冷し、例えばロックウェ
ルＢスケール６０以下の硬度となるようにする。また、
焼鈍処理と合わせて潤滑処理を施すようにしてもよい。Next, it is preferable to subject the intermediate molded product 15 to annealing. This is for facilitating the plastic working in the subsequent step, and the protrusions 18 are made as soft as possible by adjusting the annealing conditions. As the annealing conditions, for example, after heating at 880 ° C. to 900 ° C. for about 2 hours, it is gradually cooled in a furnace for 7 hours or more so that the hardness becomes, for example, Rockwell B scale 60 or less. Also,
A lubrication process may be performed together with the annealing process.
【００１８】焼鈍工程の次に、突起部１８をさらに塑性
加工してニップル部２の成形を行う。塑性加工に際して
は、例えば中間成形品１５をダイスに固定しておき、パ
ンチを備えたガイドホルダをソケット部３の内方に挿入
すると共に、そのパンチを突起部１８に圧入し、後方押
出しにより細径のパイプを、すなわちニップル部２を成
形するものとする。このパンチ圧入は、二段階など数次
に亘って行うようにしてもよい。そしてニップル部２の
成形に引き続いて、打抜により、軸穴８を空間９まで貫
通させる。なおこのニップル成形と並行してシール部１
０を成形することが好ましく、例えばダイスに所定形状
の型を形成しておけば、打抜と同時にシール部１０を成
形することができる。また基部１６（頭部４）に対して
型鍛造又は打抜などを行うことによりツバ部６を成形す
る。さらにネジ部５は、転造タップ等を用いたねじ転造
にて塑性加工する。After the annealing step, the nipple portion 2 is formed by further plastically processing the projection 18. At the time of plastic working, for example, the intermediate molded product 15 is fixed to a die, a guide holder provided with a punch is inserted into the inside of the socket portion 3, and the punch is pressed into the protruding portion 18 to be finely extruded backward. A pipe having a diameter, that is, the nipple portion 2 is formed. The punch press-fitting may be performed over several orders such as two steps. Then, following the molding of the nipple portion 2, the shaft hole 8 is penetrated to the space 9 by punching. In parallel with this nipple molding, the seal portion 1
For example, if a die having a predetermined shape is formed in a die, the seal portion 10 can be formed simultaneously with punching. The collar 6 is formed by performing die forging or punching on the base 16 (head 4). Further, the screw portion 5 is plastically processed by thread rolling using a rolling tap or the like.
【００１９】次に機械加工にて、例えばＮＣＩ工作機や
自動盤などを用いて、溝部１１の成形を行う。また前工
程で成形したネジ部５及びシール部１０の仕上げ加工を
行う。なお塑性加工でネジ部５及びシール部１０を成形
せずに、この機械加工において最初から成形するものと
してもよい。これで図１に示したように、所定の形状の
ホース用口金具１が得られる。Next, in the machining, the groove 11 is formed by using, for example, an NCI machine or an automatic lathe. Further, the thread portion 5 and the seal portion 10 formed in the previous step are finished. Instead of forming the screw portion 5 and the seal portion 10 by plastic working, it may be formed from the beginning in this mechanical processing. Thus, as shown in FIG. 1, a hose fitting 1 having a predetermined shape is obtained.
【００２０】このように、本発明のホース用口金具１
は、少なくともニップル部３が塑性加工により成形され
ているものであって、その他の部分もできるだけ塑性加
工で成形されるものである。すなわち塑性加工を中心と
した成形により製造されたものであるので、寸法安定性
に優れ、製造工程を短くでき、量産性の向上が達成され
るとともに、切削工程がほとんどないので、切粉発生を
最少限のものに抑えることができ、歩留まりの向上が達
成される。そしてニップル部３は、後方押出しの塑性加
工を経ることで硬くなるので、ホースをカシメる際につ
ぶれるおそれがない。また焼鈍工程を経ることで、ソケ
ット部２も軟らかくなっており、ホースに対して容易に
取り付けることができる。そして一体構造であること
で、高油圧ホースに採用しても油洩れの発生するおそれ
は全くない。すなわち本発明は、あらゆる性能項目にお
いて良好な性質を示すものであり、従来技術の欠点はす
べて解消されたものである。As described above, the hose fitting 1 of the present invention.
Is one in which at least the nipple portion 3 is formed by plastic working, and the other portions are formed by plastic working as much as possible. In other words, since it is manufactured by forming mainly on plastic working, it has excellent dimensional stability, the manufacturing process can be shortened, mass productivity is improved, and there is almost no cutting process. It can be minimized, and the improvement of the yield is achieved. Then, the nipple portion 3 becomes hard by undergoing rearward extrusion plastic working, so that there is no possibility of crushing when the hose is swaged. Further, through the annealing step, the socket portion 2 is also softened, and can be easily attached to the hose. And since it is an integral structure, there is no danger of oil leakage occurring even when employed in a high hydraulic hose. That is, the present invention shows good properties in all performance items, and all the disadvantages of the prior art are eliminated.
【００２１】なお上記実施例では、塑性加工の材料とし
て鉄鋼を示したが、銅やアルミ、或いはこれらの合金を
使用してもよい。またシール部の形状としては図示例に
限らず、空間９の底面から窪んだ形状のメスシールとし
てもよい。この場合、ニップル成形と同時の成形はパン
チ寿命などの点で困難があるので、切削加工にて成形す
る方がよい。In the above embodiment, steel is shown as the material for the plastic working. However, copper, aluminum, or an alloy thereof may be used. Further, the shape of the seal portion is not limited to the illustrated example, and a female seal having a shape depressed from the bottom surface of the space 9 may be used. In this case, since molding at the same time as nipple molding is difficult in terms of punch life and the like, it is better to perform molding by cutting.
【００２２】図３は、本発明の口金具をホース端部にか
しめ固定してブレーキホースとした一例を示したもので
ある。ホース５０の両端を口金具１のニップル部２とソ
ケット部３の間に挿入し、ソケット部２の複数箇所を圧
縮成形してかしめ部５１を形成して構成されている。FIG. 3 shows an example in which the fitting of the present invention is caulked and fixed to an end of a hose to form a brake hose. Both ends of the hose 50 are inserted between the nipple portion 2 and the socket portion 3 of the fitting 1, and a plurality of portions of the socket portion 2 are compression-molded to form a caulked portion 51.
【００２３】[0023]
【発明の効果】以上説明してきた通り、本発明によれ
ば、コスト低減、寸法安定性、切粉処理軽減、工程短
縮、量産性向上、ニップル部の強度保全、液洩れ防止が
達成されるという優れた効果が発揮される。As described above, according to the present invention, it is possible to achieve cost reduction, dimensional stability, chip processing reduction, process shortening, mass productivity improvement, nipple strength maintenance, and liquid leakage prevention. Excellent effect is exhibited.
【図１】本発明のホース用口金具の一実施例の側断面説
明図である。FIG. 1 is an explanatory side sectional view of an embodiment of a hose fitting of the present invention.
【図２】本発明において使用される中間成形品の一実施
例の側断面説明図である。FIG. 2 is an explanatory side sectional view of one embodiment of an intermediate molded product used in the present invention.
【図３】本発明のブレーキホースの一実施例の側断面説
明図である。FIG. 3 is an explanatory side sectional view of an embodiment of the brake hose of the present invention.
【図４】従来のホース用口金具の側断面説明図図であ
る。FIG. 4 is an explanatory side sectional view of a conventional hose fitting.
【図５】従来のホース用口金具の構成部品である外金具
の側断面説明図である。FIG. 5 is an explanatory side sectional view of an outer fitting which is a component of a conventional hose fitting.
【図６】従来のホース用口金具の構成部品である内金具
の側断面説明図である。FIG. 6 is an explanatory side sectional view of an inner fitting which is a component of a conventional hose fitting.
１ ホース用口金具 ２ ニップル部 ３ ソケット部 ４ 頭部 ５ ネジ部 ６ ツバ部 ８ 軸穴 ９ 空間 １０ シール部 １１ 溝部 DESCRIPTION OF SYMBOLS 1 Hose fitting 2 Nipple part 3 Socket part 4 Head 5 Screw part 6 Flange part 8 Shaft hole 9 Space 10 Seal part 11 Groove part
フロントページの続き (72)発明者 滑川 義裕 茨城県日立市助川町３丁目１番１号 日 立電線株式会社電線工場内 (72)発明者 萩原 秀樹 茨城県日立市助川町３丁目１番１号 日 立電線株式会社電線工場内 (72)発明者 青柳 克弘 茨城県日立市助川町３丁目１番１号 日 立電線株式会社電線工場内 (72)発明者 金丸 尚信 茨城県ひたちなか市大字高場2520番地 株式会社日立製作所 自動車機器事業部 内 (56)参考文献 特開 昭55−163385（ＪＰ，Ａ) 特開 昭60−26876（ＪＰ，Ａ) 特開 平６−294491（ＪＰ，Ａ) 特開 昭61−180093（ＪＰ，Ａ) 特開 平９−303645（ＪＰ，Ａ) 特開 平９−303646（ＪＰ，Ａ) 実開 昭63−152087（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 33/00 - 33/28 B21K 1/00 - 1/76 Continued on the front page (72) Inventor Yoshihiro Namekawa 3-1-1, Sukekawa-cho, Hitachi City, Ibaraki Prefecture Inside the wire plant of Hitachi Cable Co., Ltd. (72) Hideki Hagiwara 3-1-1, Sukekawa-machi, Hitachi City, Ibaraki Prefecture Inside the wire plant of Hitachi Cable Co., Ltd. (72) Katsuhiro Aoyagi, Inventor 3-1-1, Sukekawa-cho, Hitachi City, Ibaraki Prefecture Inside the wire plant of Hitachi Cable Co., Ltd. Address: Hitachi, Ltd. Automotive Equipment Division (56) References JP-A-55-163385 (JP, A) JP-A-60-26876 (JP, A) JP-A-6-294491 (JP, A) JP-A-61-180093 (JP, A) JP-A-9-303645 (JP, A) JP-A-9-303646 (JP, A) JP-A-6-152087 (JP, U) (58) Fields investigated (Int) .Cl. 7 , DB name) F16L 33/00-33/28 B21K 1/00-1/76
Claims (4)
設けられた管状のソケット部と、ニップル部とソケット
部とを一方端において連結する頭部とを有し、ニップル
部、ソケット部及び頭部とが同一材料で一体成形されて
いると共に、ニップル部は同一材料で一体成形された同
一体積及び外径の中実突起部を塑性加工することによっ
て形成されていることを特徴とするホース用口金具。A tubular nipple portion, a tubular socket portion provided on an outer periphery of the nipple portion, and a head portion connecting the nipple portion and the socket portion at one end. The head and the nipple are integrally formed of the same material, while the head and the nipple are integrally formed of the same material.
Plastic forming of solid projections of one volume and outer diameter
A mouth fitting for a hose, characterized in that the hose fitting is formed.
部の径方向内方には一端に開口した空間が設けられ、空
間の外縁に沿ってネジ部が設けられている請求項１記載
のホース用口金具。2. A groove and a flange are provided on the outer periphery of the head, a space opened at one end is provided radially inward of the head, and a screw portion is provided along an outer edge of the space. 2. The hose fitting according to 1.
間内に突出して設けられている請求項２記載のホース用
口金具。3. The hose fitting according to claim 2, wherein a seal portion communicating with the shaft hole of the nipple portion is provided so as to protrude into the space.
設けられた管状のソケット部と、ニップル部とソケット
部とを一方端において連結する頭部とを有し、ニップル
部、ソケット部及び頭部とが同一材料で一体成形されて
いると共に、ニップル部は同一材料で一体成形された同
一体積及び外径の中実突起部を塑性加工することによっ
て形成されているホース用口金具のニップル部とソケッ
ト部との間にホース端部が挿入固定されてなることを特
徴とするブレーキホース。4. A nipple, a socket, and a tubular socket provided on the outer periphery of the nipple, and a head connecting the nipple and the socket at one end. The head and the nipple are integrally formed of the same material, while the head and the nipple are integrally formed of the same material.
Plastic forming of solid projections of one volume and outer diameter
Brake hose, characterized in that the hose end is fixedly inserted between the nipple portion and the socket portion of the hose inlet fitting being formed Te.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08310915A JP3072976B2 (en) | 1996-03-13 | 1996-11-21 | Hose fittings and brake hoses |
| MX9701887A MX9701887A (en) | 1996-03-13 | 1997-03-12 | Hose coupling intermediates. |
| US08/816,216 US6189199B1 (en) | 1996-03-13 | 1997-03-12 | Method of manufacturing a hose coupling from an intermediate blank material |
| GB9705235A GB2311111B (en) | 1996-03-13 | 1997-03-13 | A method of maufacturing a hose coupling |
| CN97110256A CN1087411C (en) | 1996-03-13 | 1997-03-13 | Hose coupling, intermediate blank materiul for making the same, and hose assembly using the same |
| DE19710261A DE19710261B4 (en) | 1996-03-13 | 1997-03-13 | Method of making a hose coupling |
| IT97MI000557A IT1290064B1 (it) | 1996-03-13 | 1997-03-13 | Giunto per tubo flessibile pezzo grezzo intermedio per realizzarlo e insieme di tubo flessibile che utilizza detto giunto |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5632496 | 1996-03-13 | ||
| JP8-56324 | 1996-03-13 | ||
| JP08310915A JP3072976B2 (en) | 1996-03-13 | 1996-11-21 | Hose fittings and brake hoses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09303649A JPH09303649A (en) | 1997-11-28 |
| JP3072976B2 true JP3072976B2 (en) | 2000-08-07 |
Family
ID=26397273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08310915A Expired - Lifetime JP3072976B2 (en) | 1996-03-13 | 1996-11-21 | Hose fittings and brake hoses |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3072976B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3537646B2 (en) * | 1997-10-14 | 2004-06-14 | 大川精螺工業株式会社 | Manufacturing method of blank material for hose fitting and manufacturing method of hose fitting |
| KR101034091B1 (en) * | 2008-09-18 | 2011-05-13 | 엘에스엠트론 주식회사 | Fitting |
| KR101141017B1 (en) * | 2008-09-18 | 2012-05-02 | 엘에스엠트론 주식회사 | The Fitting |
| CN103182466A (en) * | 2011-12-29 | 2013-07-03 | 上海大陆汽车制动系统销售有限公司 | Joint sealing face assembly |
| JP6917257B2 (en) * | 2016-09-30 | 2021-08-11 | 有限会社アキヤマ | Fittings |
-
1996
- 1996-11-21 JP JP08310915A patent/JP3072976B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09303649A (en) | 1997-11-28 |
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