DE2425373A1 - Coupling between plastic tube and nipple - comprises sleeve thrust over tube end into which nipple is placed - Google Patents

Coupling between plastic tube and nipple - comprises sleeve thrust over tube end into which nipple is placed

Info

Publication number
DE2425373A1
DE2425373A1 DE19742425373 DE2425373A DE2425373A1 DE 2425373 A1 DE2425373 A1 DE 2425373A1 DE 19742425373 DE19742425373 DE 19742425373 DE 2425373 A DE2425373 A DE 2425373A DE 2425373 A1 DE2425373 A1 DE 2425373A1
Authority
DE
Germany
Prior art keywords
nipple
groove
projections
tube
hose
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.)
Withdrawn
Application number
DE19742425373
Other languages
German (de)
Inventor
Karl Dr Wilfert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19742425373 priority Critical patent/DE2425373A1/en
Publication of DE2425373A1 publication Critical patent/DE2425373A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
    • F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
    • F16L33/2073—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member

Abstract

The nipple (1) has a bead encircling it over which the tube is thrust whereby the bead prevents the tube (2) from slipping off. A groove formed by squeezing-in the sleeve (3) below the bead has two projections displaced 180 deg. relative to one another. Near the projections the flat-pressing between the tube and the nipple is not so high as in the normal region of the groove. A second groove (7) is similarly formed in the sleeve at a distance from the first groove and has two projections (8) displaced 180 deg. from one another and 90 deg. relative to the first pair of projections. The design gives a reliable leak tight sealing in the assembly.

Description

Verbindung eines Schlauches nit einem Nippel Die Erfindung bezieht sich auf die Verbindung eines Schlauches mit einem Nippel in einem Leitungssystem, insbesondere einem Kraftstoffleitungssystem, mit einer über das Schlauchende geschobenen Muffe, in die nach dem Aufschieben des Schlauches über den Nippel eine Rille mit einzelnen Vorsprüngen eingequetscht ist. Connection of a hose to a nipple The invention relates refers to the connection of a hose with a nipple in a pipe system, in particular a fuel line system, with one pushed over the end of the hose Socket into which a groove is made after the hose has been pushed over the nipple individual projections is squeezed.

Derartige Verbindungen neigen in einer Leitungssystem mit höherem Druck, beispielsweise einer fraftstoffeinspritzanlage, und bei häufigem größerem Temperaturwechsel, beispielsweise innerhalb eines Motorraumes eines Kraftfahrzeuges, zum Undichtwerden. Diese Undichtigkeiten treten in den Bereichen der Vorsprünge auf, in denen die Flächenpressung zwischen dem Schlauch und dem Nippel geringer ist als in den anderen Bereichen der Rille.Such connections tend to be higher in a pipe system Pressure, for example a fuel injection system, and often larger Temperature changes, for example within an engine compartment of a motor vehicle, to leak. These leaks occur in the areas of the protrusions in which the surface pressure between the hose and the nipple is lower than in the other areas of the groove.

Der Erfindung liegt die Aufgabe zugrunde, ein Undichtwerden der Verbindung zu verhindern.The object of the invention is to prevent the connection from leaking to prevent.

Die Aufgabe ist erfindungsgemäß dadurch gelöst, daß eine zweite Rille vorgesehen ist, deren Vorsprünge gegenüber denjenigen der ersten Rille am Umfang versetzt angeordnet sind.The object is achieved according to the invention in that a second groove is provided whose projections opposite those of the first groove on the circumference are arranged offset.

ienn bei der erfindungsgemäßen Verbindung in! Bereich eines Vorsprungs der einen Rille eine Undichtigkeit auftreten sollte, so trifft das geförderte Medium bei der anderen Rilte auf einen Bereich erhöhter Fläclienpressung zwischen Schlauch und Nippel, so daß ein Austreten des Mediums ausgeschlossen ist.ienn in the compound according to the invention in! Area of a ledge If a leak should occur in one of the grooves, the conveyed medium hits with the other ridge on an area of increased surface pressure between the hose and nipple, so that leakage of the medium is excluded.

In der Zeichnung ist ein Ausffihrungsbeispiel der Erfindung dargestellt. Dabei zeigen Fig. 1 einen JAngsschnitt durch eine Verbindung -und Fig. 2 u. 3 Querschnitte nach den Linien II und III aus der Fig. 1.An exemplary embodiment of the invention is shown in the drawing. 1 shows a cross-section through a connection and FIGS. 2 and 3 show cross-sections according to lines II and III from FIG. 1.

Auf einen Nippel 1, der Teil beispielsweise einer nicht dargestellten Kraftstoffeinspritzddse ist, ist das En@@ eines Schlauchs 2 aufgeschoben, der wiederum von einer Muffe 3 umgeben ist. Ein Bund 4 am Nippel 1 hindert den Schlauch 2 am-Abrutschen vom Nippel 1. Unterhalb des Bundes 4 ist der Muffe 3 eine Rille 5 mit zwei um 1800 versetzten Vorsprünge 6 oder Nasen eingequetscht. Diese Vorsprünge 6 sind im allgemeinen notwendig, run dem Material der Muffe 3 die Möglichkeit zu geben, beim Einquetschen der Rille 5 auszuweichen. Im Bereich der Vorsprünge -6 ist die Flächenpressung zwischen dem Schlauch 2 und dem Nippel 1 nicht so hoch wie im übrigen Bereich der Rille #. Mit Abstand von der ersten Rille 5 ist in die Muffe 3 eine zweite Rille 7 eingequetscht, die gleichfalls zwei um 180° zueinander versetzte Vorsprünge 8 aufweist. Diese Vorsprünge 8 sind gegenüber den Vorsprüngen 6 der ersten Rille 5 um 90° versetzt. Falls das Material der Muffe 3 es erlaubt, kann die Rille 7 auch durchgehend ausgebildet sein.On a nipple 1, the part of, for example, one not shown Fuel injector is, the En @@ of a hose 2 is pushed on, which in turn is surrounded by a sleeve 3. A collar 4 on the nipple 1 prevents the hose 2 from slipping off from the nipple 1. Below the collar 4, the sleeve 3 is a groove 5 with two around 1800 offset projections 6 or noses squeezed. These projections 6 are generally necessary to give the material of the sleeve 3 the possibility of being squeezed to avoid the groove 5. In the area of the projections -6, the surface pressure is between the hose 2 and the nipple 1 not as high as in the remaining area of the groove #. At a distance from the first groove 5, a second groove 7 is squeezed into the sleeve 3, which also has two projections 8 offset from one another by 180 °. These protrusions 8 are offset from the projections 6 of the first groove 5 by 90 °. If that Material of the sleeve 3 allows it, the groove 7 can also be formed continuously.

Claims (1)

Anspruchclaim Verbindung eines Schlauchs mit einem Nippel in einem Leitungssystem, insbesondere einem Kraftstoffleitungssystems, mit einer über das Schlauchende geschobenen Muffe, in die nach dem Aufschieben des Schlauches auf den Nippel eine Rille mit einzelnen Vorsprüngen eingequetscht ist, dadurch gekennzeichnet, daß eine zweite Rille (7) vorgesehen ist, deren Vorspringe (8) gegenüber denjenigen der ersten Rille (5) am Umfang versetzt angeordnet sind.Connection of a hose with a nipple in a pipe system, in particular a fuel line system, with one pushed over the end of the hose Socket in which a groove is made after the hose has been pushed onto the nipple individual projections is squeezed, characterized in that a second Groove (7) is provided, the projecting rings (8) opposite those of the first groove (5) are arranged offset on the circumference. L e e r s e i t eL e r s e i t e
DE19742425373 1974-05-25 1974-05-25 Coupling between plastic tube and nipple - comprises sleeve thrust over tube end into which nipple is placed Withdrawn DE2425373A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742425373 DE2425373A1 (en) 1974-05-25 1974-05-25 Coupling between plastic tube and nipple - comprises sleeve thrust over tube end into which nipple is placed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742425373 DE2425373A1 (en) 1974-05-25 1974-05-25 Coupling between plastic tube and nipple - comprises sleeve thrust over tube end into which nipple is placed

Publications (1)

Publication Number Publication Date
DE2425373A1 true DE2425373A1 (en) 1975-12-04

Family

ID=5916456

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742425373 Withdrawn DE2425373A1 (en) 1974-05-25 1974-05-25 Coupling between plastic tube and nipple - comprises sleeve thrust over tube end into which nipple is placed

Country Status (1)

Country Link
DE (1) DE2425373A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296804A (en) * 1979-06-28 1981-10-27 Resistoflex Corporation Corrosion resistant heat exchanger element and method of manufacture
FR2512918A1 (en) * 1981-09-11 1983-03-18 Rasmussen Gmbh DEVICE FOR FIXING A PIPE ON A TUBULAR CONNECTION
DE4106472A1 (en) * 1991-02-28 1992-09-03 Pacoma Hydraulik Gmbh Small fluid power cylinder for vehicle door closure - has cylinder end plug with nipple extension on which hydraulic oil or air pipe is secured
US5765938A (en) * 1994-08-05 1998-06-16 Black & Decker Inc. Sleeve retention for flexible core of a flashlight

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296804A (en) * 1979-06-28 1981-10-27 Resistoflex Corporation Corrosion resistant heat exchanger element and method of manufacture
FR2512918A1 (en) * 1981-09-11 1983-03-18 Rasmussen Gmbh DEVICE FOR FIXING A PIPE ON A TUBULAR CONNECTION
DE4106472A1 (en) * 1991-02-28 1992-09-03 Pacoma Hydraulik Gmbh Small fluid power cylinder for vehicle door closure - has cylinder end plug with nipple extension on which hydraulic oil or air pipe is secured
US5765938A (en) * 1994-08-05 1998-06-16 Black & Decker Inc. Sleeve retention for flexible core of a flashlight

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination