JPH0262495A - Hose metal - Google Patents
Hose metalInfo
- Publication number
- JPH0262495A JPH0262495A JP63209344A JP20934488A JPH0262495A JP H0262495 A JPH0262495 A JP H0262495A JP 63209344 A JP63209344 A JP 63209344A JP 20934488 A JP20934488 A JP 20934488A JP H0262495 A JPH0262495 A JP H0262495A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- rubber
- fitting
- rubber hose
- nipple
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title abstract description 15
- 210000002445 nipple Anatomy 0.000 claims abstract description 27
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000002788 crimping Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、流体を輸送するゴムホースの先端に装着す
るホース金具の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a hose fitting attached to the tip of a rubber hose for transporting fluid.
従来、ゴムホース用のニップル金具のホース挿入側外周
面には、流体の洩れ防止効果及びゴムホースの抜けを防
止効果を狙って、鋸刃状の係止部や凹凸状の係止部を刻
設するのが一般的である。Conventionally, the outer circumferential surface of the hose insertion side of a nipple fitting for a rubber hose is carved with a saw blade-shaped locking part or an uneven locking part with the aim of preventing fluid leakage and preventing the rubber hose from coming off. is common.
〔発明が解決しようとする問題点］
然しなから、上記のような係止部の山部エツジが鋭角で
あると、ホースの抜は防止効果は大きい反面、締付は金
具を加締る際、加締中心から左右方向へのゴムの移動に
よりゴムホースの内面ゴム層に傷を付け、内部輸送流体
の流出及びホース亀裂等を引き起こすと言う問題があっ
た。このため、金具二ンプルのホース挿入側外周面に形
成する係止部の先端には、０．２ｍｍ以上のアール面（
円弧面）を形成するのが一般的である。[Problems to be Solved by the Invention] However, if the crest edge of the locking portion is acute as described above, it has a great effect of preventing the hose from being pulled out, but on the other hand, it is difficult to tighten the fitting when caulking the fitting. However, there is a problem in that the movement of the rubber in the left and right directions from the center of crimping damages the inner rubber layer of the rubber hose, causing leakage of internal transport fluid and cracking of the hose. For this reason, the tip of the locking part formed on the outer peripheral surface of the hose insertion side of the two-piece metal fitting has a rounded surface of 0.2 mm or more (
It is common to form a circular arc surface.
然し、アール面（円弧面）を形成することでゴムホース
は抜は易くなり、抜けを防止するためにゴムホースの加
締率（ゴムの圧縮率）を上げる必要があるが、この結果
、加締時の金具内補強層の破断が起き易く、締付は範囲
（締付は巾）を狭くしなければならず、相反する問題が
生じていた。However, by forming a rounded surface (arc surface), the rubber hose becomes easier to pull out, and to prevent it from coming off, it is necessary to increase the crimping rate (rubber compression rate) of the rubber hose. The reinforcing layer inside the metal fittings is likely to break, and the tightening range (width for tightening) must be narrowed, creating contradictory problems.
この発明は、かかる従来の問題点に着目して案出された
もので、ゴムホースの引抜き力を増大させて、ゴムホー
スとニップル金具本体とを締付は金具で加締時に、輸送
流体の洩れを有効に防止するとともに、ホースの抜けを
防止したホース金具を提供することを目的とするもので
ある。This invention was devised by focusing on such conventional problems, and increases the pulling force of the rubber hose to prevent leakage of transport fluid when tightening the rubber hose and the nipple fitting body with the metal fitting. The object of the present invention is to provide a hose fitting that effectively prevents the hose from coming off.
〔課題を解決するための手段］
この発明は上記目的を達成するため、ニップル金具本体
の係止部とゴムホースとの加締中心に対して、ニップル
金具本体のホース挿入側外周面に位置する係上部の各先
端エツジ部を円弧状に形成したことを要旨とするもので
ある。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a lock located on the outer circumferential surface of the hose insertion side of the nipple fitting main body with respect to the center of caulking between the locking portion of the nipple fitting main body and the rubber hose. The gist is that each top end edge portion of the upper portion is formed in an arc shape.
またこの発明は、ニップル金具本体の係止部とゴムホー
スとの加締中心に対して、相対向する係止部の各先端エ
ツジ部を円弧状に形成したことを要旨とするものである
。Further, the gist of the present invention is that each end edge portion of the locking portion facing opposite to the center of caulking between the locking portion of the nipple fitting body and the rubber hose is formed in an arc shape.
この発明は、上記のように構成され、鋸刃状の係止部の
場合には、加締中心に対して、先端側に位置する係止部
の先端エツジ部を円弧状に形成することにより、締付は
金具による加締時にゴム層が加締中心に対して左右に移
動しても係止部の先端がゴム層に喰込んでゴム切れを起
こすことがなく、また引抜力に対しては係止部がゴム層
に喰込んでエツジ効果が働くので、ゴムホースの抜けを
有効に防止することが出来る。The present invention is constructed as described above, and in the case of a saw-blade-shaped locking portion, the tip edge portion of the locking portion located on the tip side with respect to the center of caulking is formed into an arc shape. When tightening with metal fittings, even if the rubber layer moves left and right with respect to the center of tightening, the tip of the locking part will not bite into the rubber layer and cause the rubber to break, and it will resist pulling force. Since the locking part bites into the rubber layer and produces an edge effect, it is possible to effectively prevent the rubber hose from coming off.
また凹凸状の係止部の場合には、加締中心に対して、相
対向する係止部の先端エツジ部を円弧状に形成すること
で、上記と同様に締付は金具による加締時にゴム層が加
締中心に対して左右に移動しても係止部の先端がゴム層
に喰込んでゴム切れを起こすことがなく、輸送流体の洩
れを防止することが出来、また引抜力に対しては係止部
のエツジがゴム層に喰込んでエツジ効。In addition, in the case of an uneven locking part, by forming the tip edge of the locking part opposite to the crimping center into an arc shape, tightening can be performed by crimping with metal fittings in the same way as above. Even if the rubber layer moves left and right with respect to the center of crimping, the tip of the locking part will not bite into the rubber layer and cause the rubber to break, preventing leakage of transport fluid and reducing the pull-out force. On the other hand, the edge of the locking part bites into the rubber layer and has an edge effect.
果が作用するものである。The fruit is what works.
以下添付図面に基いて、この発明の詳細な説明する。 The present invention will be described in detail below based on the accompanying drawings.
第１図は、この発明の第１実施例を示す軸方向の半断面
図を示し、１はニップル金具本体、２は内面ゴム層３と
外面ゴム層４との間に補強層５を埋設したゴムホース、
６はニップル金具本体１とゴムホース２とを加締固定す
る締付は金具を示している。FIG. 1 shows an axial half-sectional view showing a first embodiment of the present invention, in which 1 is a nipple fitting body, 2 is a reinforcing layer 5 embedded between an inner rubber layer 3 and an outer rubber layer 4. rubber hose,
Reference numeral 6 designates a fastening metal fitting for fastening the nipple fitting main body 1 and the rubber hose 2 together.
前記、ニップル金具本体１のホース挿入側外周面１ａに
は、ニップル金具本体１側（第１図において左方向）に
向かって形成された鋸刃状の複数の係止部７が形成され
ている。On the outer peripheral surface 1a of the nipple fitting body 1 on the hose insertion side, a plurality of saw blade-shaped locking portions 7 are formed toward the nipple fitting body 1 side (leftward in FIG. 1). .
この鋸刃状の複数の係止部７は、前記ニップル金具本体
１とゴムホース２との加締中心Ｘ−Ｘに対して、先端側
（第１図の右方向）に位置する係止部７の先端エツジ部
７ａを円弧状に形成するか、または面取り加工を施しで
ある。The plurality of saw blade-shaped locking portions 7 are located on the tip side (rightward in FIG. 1) with respect to the crimping center XX between the nipple fitting main body 1 and the rubber hose 2. The tip edge portion 7a is formed into an arc shape or is chamfered.
このため、ホース挿入側外周面１ａの係止部７にゴムホ
ース２の先端２ａを嵌合し、締付は金具６を介して加締
固定した際、内面ゴム層３と外面ゴム層４とは、加締中
心Ｘ−Ｘを中心として左右方向（矢印方向）に移動する
が、図左方向のゴム移動は係止部７に引っ掛からずに移
動し、また一方、図の右方向（矢印方向）のゴム移動に
対しても、上記のように係止部７の先端エツジ部７ａを
円弧状に形成しであることから先端エツジ部７ａに喰込
むことな（移動する。For this reason, when the tip 2a of the rubber hose 2 is fitted into the locking part 7 of the outer circumferential surface 1a on the hose insertion side and fixed by caulking via the metal fitting 6, the inner rubber layer 3 and the outer rubber layer 4 are separated. , moves in the left-right direction (in the direction of the arrow) around the caulking center Even when the rubber moves, since the distal end edge portion 7a of the locking portion 7 is formed in an arc shape as described above, the distal end edge portion 7a does not bite into the distal end edge portion 7a (movement).
この結果、ゴムホース２の内面ゴム層３に喰込み傷等を
付けることなくニップル金具本体１とゴムホース２とを
強固に加締固定することが出来るのである。As a result, the nipple fitting main body 1 and the rubber hose 2 can be firmly crimped and fixed without causing any biting damage to the inner rubber layer 3 of the rubber hose 2.
また、ゴムホース２の引抜力に対しては、係止部７のエ
ツジ効果が働き、ゴムホース２の抜は防止を図ることが
出来るのである。Furthermore, the edge effect of the locking portion 7 acts against the pulling force of the rubber hose 2, and the rubber hose 2 can be prevented from being pulled out.
また、第２図はこの発明の第２実施例を示し、この実施
例は、前記第１実施例の係止部７が鋸刃状であるのに対
して凹凸状の係止部８にしたものであり、そしてニップ
ル金具本体１の係止部８とゴムホース２との加締中心Ｘ
−Ｘに対して、各々相対向する係止部８の凸状の先端工
・ンジ部８ａを円弧状に形成して構成したものである。Further, FIG. 2 shows a second embodiment of the present invention, in which the locking portion 7 of the first embodiment is shaped like a saw blade, but the locking portion 8 is shaped like an uneven surface. and the crimping center X between the locking part 8 of the nipple fitting main body 1 and the rubber hose 2
-X, the convex tip end portions 8a of the locking portions 8 facing each other are formed in an arc shape.
この実施例の場合も、上記第１実施例と同様に、締付は
金具６による加締固定時における加締中心Ｘ−Ｘに対し
て左右方向に移動する内面ゴム層３及び外面ゴム層４が
係止部８の凸状の先端エツジ部８ａに引っ掛かることな
く左右方向に移動するので、ゴム層に喰込み傷等を付け
ることなく、強固に締付は固定することが出来、またゴ
ムホース２の引抜力に対しては、係止部８のエツジ効果
が働き、ゴムホース２の抜は防止を図ることが出来るの
である。In this embodiment, as in the first embodiment, the inner rubber layer 3 and the outer rubber layer 4 are tightened by moving in the left-right direction with respect to the crimping center X-X when the metal fitting 6 is crimped and fixed. Since the rubber hose 2 moves in the left and right direction without being caught by the convex tip edge 8a of the locking portion 8, the rubber hose 2 can be firmly tightened and fixed without biting into the rubber layer and causing scratches. The edge effect of the locking portion 8 acts against the pulling force, and it is possible to prevent the rubber hose 2 from being pulled out.
なお、その他の構成は、上記第１実施例と同様なので、
同一符号を付して説明は省略する。Note that the other configurations are the same as those of the first embodiment, so
The same reference numerals are used to omit the explanation.
また、第３図はこの発明の第３実施例を示し、この実施
例は、ニップル金具本体１の係止部９とゴムホース２と
の加締中心Ｘ−Ｘからニップル金具本体１側（第１図に
おいて左方向）に向かってのみ鋸刃状の複数の係止部９
を形成したものであり、加締中心Ｘ−Ｘからホース挿入
端先端側（第１図の右方向）には、係上部を全く形成せ
ず外周面を面一に構成したものである。Further, FIG. 3 shows a third embodiment of the present invention, and this embodiment is arranged from the crimping center XX of the nipple fitting body 1 and the rubber hose 2 to the nipple fitting body 1 side (the first A plurality of saw blade-shaped locking portions 9 only toward the left (in the figure)
The outer circumferential surface is made flush with no engaging part formed at all from the crimp center XX to the distal end of the hose insertion end (rightward in FIG. 1).
この実施例の場合には、上記の実施例に較べてゴムホー
ス２の引抜力に抗する力は半減するが、締付は金具６に
よる加締固定時に、内面ゴム層３と外面ゴム層４とが係
止部９に引っ掛かることなく加締中心Ｘ−Ｘを中心とし
て左右方向（矢印方向）に円滑に移動するので、ゴム層
に喰込み傷等を付けることな（、強固に締付は固定する
ことが出来る。In the case of this embodiment, the force resisting the pulling force of the rubber hose 2 is halved compared to the above-mentioned embodiments, but the inner rubber layer 3 and the outer rubber layer 4 are tightened when the metal fittings 6 are used to secure the hose. Since it moves smoothly in the left and right direction (in the direction of the arrow) around the tightening center You can.
なお、その他の構成は、上記第１実施例と同様なので、
同一符号を付して説明は省略する。Note that the other configurations are the same as those of the first embodiment, so
The same reference numerals are used to omit the explanation.
次に、ニップル金具本体１のホース挿入側外周面１ａに
形成した係止部７のエツジ部７ａ。Next, the edge portion 7a of the locking portion 7 formed on the hose insertion side outer peripheral surface 1a of the nipple fitting main body 1.
７ｂを円弧状に形成した場合と、しない場合の内面ゴム
３の切れ、補強層切れ、引抜力を、種々の締付は力によ
り実験した結果について説明する。The results of experiments using various tightening forces will be described to determine the breakage of the inner rubber 3, the breakage of the reinforcing layer, and the pull-out force when the inner rubber 3 is formed into an arc shape and when it is not formed.
（ａ）、実験データ。(a), Experimental data.
ゴムホース：内径・・・５．３ｍｍ、外径・・・１５．
５１ｍ、１層補強。Rubber hose: Inner diameter: 5.3mm, outer diameter: 15.
51m, 1 layer reinforced.
ニップル金具：ニソブル山径７．５＋１ｍ、谷径５ 、
Ｑ ＊＊山数・・・６ケ、締付は長さ・・・９１１０
（以下余白）
〔発明の効果〕
この発明は、上記のように、加締中心部からニップル金
具本体側の係止部のエツジ部を円弧状に形成しないこと
により、ゴムホース加締時の輸送流体洩れ及びホース抜
けを有効に防止することが出来、またゴムホースの引抜
力が増大する結果、締付は巾を広くでき、強固に締付は
固定することが出来る効果がある。Nipple fittings: Nisoburu mountain diameter 7.5 + 1m, valley diameter 5,
Q **Number of threads...6 pieces, tightening length...9110
(The following is a blank space) [Effects of the Invention] As described above, the present invention is advantageous in that, by not forming the edge portion of the locking portion from the center of crimping to the nipple fitting main body side in an arc shape, the transportation fluid during crimping of the rubber hose is Leakage and hose disconnection can be effectively prevented, and as a result of the increased pull-out force of the rubber hose, the width of the tightening can be increased and the tightening can be firmly fixed.
第１図は、この発明の第１実施例を示す軸方向の半断面
図を示し、第２図はこの発明の第２実施例を示す第１図
と同様な図、第３図はこの発明の第３実施例を示す第１
図と同様な図である。
１・・・ニップル金具本体、１ａ・・・ホース挿入側外
周面、２・・・ゴムホース、３・・・内面ゴム層、４・
・・外面ゴム層、５・・・補強層、６・・・締付は金具
、７．８．９・・・係止部、７ａ、８ａ・・・エツジ部
、Ｘ−Ｘ・・・加締中心。
代理人 弁理士 小 川 信 −FIG. 1 shows a half-sectional view in the axial direction showing a first embodiment of the invention, FIG. 2 is a view similar to FIG. 1 showing a second embodiment of the invention, and FIG. The first example shows the third embodiment of
It is a figure similar to the figure. DESCRIPTION OF SYMBOLS 1...Nipple fitting body, 1a...Hose insertion side outer peripheral surface, 2...Rubber hose, 3...Inner rubber layer, 4...
... External rubber layer, 5... Reinforcement layer, 6... Tightening with metal fittings, 7.8.9... Locking part, 7a, 8a... Edge part, X-X... Machining Tightening center. Agent Patent Attorney Nobuo Ogawa −
Claims (2)
ル金具本体側に向かって形成された鋸刃状の係止部に、
ゴムホースの先端を嵌合し、前記係止部とゴムホースと
を締付け金具を介して加締固定するホース金具において
、前記ニップル金具本体の係止部とゴムホースとの加締
中心に対して、ニップル金具本体の挿入先端側に位置す
る係止部の各先端エッジ部を円弧状に形成したことを特
徴とするホース金具。1. A saw blade-shaped locking part is formed on the outer circumferential surface of the nipple fitting body on the hose insertion side toward the nipple fitting body.
In a hose fitting in which the tip of a rubber hose is fitted and the locking portion and the rubber hose are crimped and fixed via a tightening fitting, the nipple fitting is attached to the center of crimping between the locking portion of the nipple fitting body and the rubber hose. A hose fitting characterized in that each tip edge portion of a locking portion located on the insertion tip side of a main body is formed into an arc shape.
れた凹凸状の係止部にゴムホースの先端を嵌合し、前記
係止部とゴムホースとを締付け金具を介して加締固定す
るホース金具において、前記ニップル金具本体の係止部
とゴムホースとの加締中心に対して、相対向する係止部
の各先端エッジ部を円弧状に形成したことを特徴とする
ホース金具。2. In the hose fitting, the tip of the rubber hose is fitted into the uneven locking portion formed on the outer peripheral surface of the hose insertion side of the nipple fitting main body, and the locking portion and the rubber hose are crimped and fixed via the tightening fitting. A hose fitting characterized in that each end edge portion of the locking portion facing opposite to the center of caulking between the locking portion of the nipple fitting main body and the rubber hose is formed into an arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63209344A JPH0262495A (en) | 1988-08-25 | 1988-08-25 | Hose metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63209344A JPH0262495A (en) | 1988-08-25 | 1988-08-25 | Hose metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0262495A true JPH0262495A (en) | 1990-03-02 |
Family
ID=16571398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63209344A Pending JPH0262495A (en) | 1988-08-25 | 1988-08-25 | Hose metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0262495A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010112521A (en) * | 2008-11-10 | 2010-05-20 | Kanaflex Corporation | Nipple joint |
| JP2011127647A (en) * | 2009-12-16 | 2011-06-30 | Kitz Corp | Quick disconnection coupling for resin pipe |
| JP2011132981A (en) * | 2009-12-22 | 2011-07-07 | Kitz Corp | Easy release joint for resin pipe |
| JP2012197868A (en) * | 2011-03-22 | 2012-10-18 | Inoue Sudare Kk | Pipe joint |
| JP2016041960A (en) * | 2014-08-19 | 2016-03-31 | 株式会社クラベ | Hose with joint |
-
1988
- 1988-08-25 JP JP63209344A patent/JPH0262495A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010112521A (en) * | 2008-11-10 | 2010-05-20 | Kanaflex Corporation | Nipple joint |
| JP2011127647A (en) * | 2009-12-16 | 2011-06-30 | Kitz Corp | Quick disconnection coupling for resin pipe |
| JP2011132981A (en) * | 2009-12-22 | 2011-07-07 | Kitz Corp | Easy release joint for resin pipe |
| JP2012197868A (en) * | 2011-03-22 | 2012-10-18 | Inoue Sudare Kk | Pipe joint |
| JP2016041960A (en) * | 2014-08-19 | 2016-03-31 | 株式会社クラベ | Hose with joint |
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