DK151500B - HOSE CLUTCH - Google Patents

HOSE CLUTCH Download PDF

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Publication number
DK151500B
DK151500B DK251582A DK251582A DK151500B DK 151500 B DK151500 B DK 151500B DK 251582 A DK251582 A DK 251582A DK 251582 A DK251582 A DK 251582A DK 151500 B DK151500 B DK 151500B
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DK
Denmark
Prior art keywords
hose
ribs
section
pushing
teeth
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DK251582A
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Danish (da)
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DK151500C (en
DK251582A (en
Inventor
Heinz Sauer
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Rasmussen Gmbh
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Publication of DK151500C publication Critical patent/DK151500C/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/22Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
    • F16L33/223Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)

Description

- i - 151500- i - 151500

Opfindelsen angår en slangekobling som nærmere angivet i krav l's indledning.The invention relates to a hose coupling as further specified in the preamble of claim 1.

Ved en kendt slangekobling af denne art (DE-A- 28 51 965) kan slangematerialet med tiden deforme-5 res så meget på varig måde under klemmens tryk, at ind spændingstrykket aftager, og slangen ved en drejning eller bøjning drejes på tilslutningsstudsen og trækkes af denne. Desuden kan slangen drejes ved efterspænding af klemmen. Da slangen under indspændingstrykket allerede 10 har tilpasset sig den af produktionstekniske grunde som regel ikke nøjagtigt drejningssymmetriske form af tilslutningsstudsen, bevirker en senere drejning af slangen en uregelmæssig fordeling af slangematerialet over studsens periferi og dermed en tilsvarende uregelmæssig ind-15 spændingstrykfordeling i periferiretningen. Følgen kan være en lækage ved højt fluidumtryk i slangen eller studsen.With a known hose coupling of this kind (DE-A-28 51 965), the hose material can over time be deformed so much under durable pressure that the tension pressure decreases and the hose is turned on the connecting rod by a twist or bend and pulled. of this. In addition, the hose can be turned by tightening the clamp. Since the hose under the clamping pressure 10 has already adapted to the, for production-technical reasons, usually not exactly rotationally symmetrical shape of the connection nozzle, a later turning of the hose causes an irregular distribution of the hose material over the periphery of the stud and thus a corresponding irregular tension distribution distribution. The result can be a leak at high fluid pressure in the hose or the socket.

Ved den fra US- a-1.980.389 kendte slangekobling er der på en omkreds af en tilslutningsstuds dannet lig-20 nende ribber, som ved den ende, som vender bort fra på- skubningsenden, er forbundet ved hjælp af en ringflange og griber ind i aksiale slidser i påskubningsenden på slangen. Disse ribber bevirker ikke nogen aksial sikring af slangen, og den derved bevirkede drejningssik-25 ring af slangen er kun lille, og udformningen af slid serne i slangen er omstændelig.By the hose coupling known from US-A-1,980,389, similar ribs are formed on a circumference of a connecting rod, which at the end facing away from the pushing end is connected by a ring flange and engages in axial slots at the push end of the hose. These ribs do not cause any axial securing of the hose, and the resulting rotation of the hose is only small and the shape of the wear of the hose is elaborate.

Til grund for opfindelsen ligger den opgave at anvise en slangekobling af den angivne art, som har en større sikkerhed mod utilsigtet drejning og aftrækning 30 af slangen og dermed en større tætningsvirkning.The object of the invention is to provide a hose coupling of the specified type which has a greater safety against accidental turning and pulling of the hose and thus a greater sealing effect.

Denne opgave løses ifølge opfindelsen som angivet i krav l's kendetegnende del.This task is solved according to the invention as set forth in the characterizing part of claim 1.

Tænderne sikrer, at slangen ikke mere kan drejes efter spændingen, og på samme tid bidrager de til, at slan-35 gen ikke kan trækkes af tilslutningsstudsen.The teeth ensure that the hose can no longer be turned after the voltage, and at the same time, they contribute to the hose being unable to be pulled by the connection plug.

- 2 - 151500- 2 - 151500

Der kendes ganske vist fra US-A—960.667 tandagtige fremspring på tilslutningsstudsen til hindring af meddrejning af slangen ved spænding af et skruehylster, men i dette tilfælde griber tænderne ind i slangens ende-5 flade, hvilket er mindre virksomt.While US-A-960,667 tooth protrusions are known on the connector spigot to prevent hose rotation by tightening a screw sleeve, but in this case the teeth engage the end surface of the hose which is less effective.

Tænderne kan være indrettet som angivet i krav 2.The teeth may be arranged as claimed in claim 2.

På denne måde sørger tænderne yderligere for en høj fastholdelseskraft i slangens aksialretning.In this way, the teeth further provide a high retention force in the axial direction of the hose.

Fortrinsvis er koblingen indrettet som opgivet i 10 krav 3. Dette giver tænder med trekantformet aksial- og radialtværsnit, hvis kanter og spidser let trænger dybt ind i slangematerialet.Preferably, the coupling is arranged as claimed in claim 3. This provides teeth with triangular axial and radial cross sections whose edges and tips readily penetrate deeply into the tubing material.

Slangen kan krympes på tilslutningsstudsen. På denne måde trænger slangematerialet dybere ind i tænder-15 nes mellemrum og i noterne mellem holderibberne, hvorved det med større flader lægger sig an mod de bort fra tilslutningsstudsens påskubningsende vendende flanker på tænderne og holderibberne og på denne måde ikke kun sørger for en bedre drejnings- og aksialsikring, men også 20 en højere tætningsvirkning. Desuden tilpasser slangen sig allerede ved anbringelsen på studsen på forhånd en eventuel usymmetri i studsen. Desuden udlignes usymmetriske materialefordelinger i slangen straks ved stramningen af klemmen, så at der fås en regelmæssig indspæn-25 dingstrykfordeling i periferiretningen.The hose can be shrunk on the connector. In this way, the hose material penetrates deeper into the space of the teeth and into the grooves between the holder ribs, whereby it engages with the larger flanges facing away from the pushing end of the connecting rod on the teeth and the holder ribs, thus not only providing a better rotation. - and axial protection, but also a higher sealing effect. In addition, the hose already adjusts to any possible asymmetry in the socket when it is placed on the socket. In addition, asymmetrical material distributions in the hose are immediately offset by the tightening of the clamp to provide a regular clamping pressure distribution in the circumferential direction.

Opfindelsen skal forklares nærmere i forbindelse med tegningen, hvor fig. 1 viser et sidebillede af en slangekobling ifølge opfindelsen, delvis i aksialsnit, 30 fig. 2 et udsnit af det i fig. 1 viste i større målestok, og fig. 3 et snit efter linien A-A i tilslutningsstudsen i fig. 2.The invention will be explained in more detail in connection with the drawing, in which fig. 1 is a side view of a hose coupling according to the invention, partially in axial section; FIG. 2 is a sectional view of the embodiment of FIG. 1 on a larger scale, and FIG. 3 is a sectional view taken along line A-A of the connector of FIG. 2nd

Den viste slangekobling består af en røragtig til-35 slutningsstuds 1 og en klemme i form af en omløbermøtrik 2, som kan skrues sammen ved hjælp af et cylindrisk gevind 3 og mellem sig fastklemmer en på et udvendigt ko- 151500 - 3 - nisk afsnit 4 af tilslutningsstudsen 1 skubbet slange 5 af termoplastisk materiale, f.eks. polyamid, polypropylen, polyethylen eller polyvinylchlorid.The shown hose coupling consists of a tubular connection nozzle 1 and a clamp in the form of a screw nut 2, which can be screwed together by means of a cylindrical thread 3 and clamped thereon on an exterior column 151500-3. of hose 5 of thermoplastic material, e.g. polyamide, polypropylene, polyethylene or polyvinyl chloride.

Det koniske afsnit 4 af tilslutningsstudsen 1 er 5 forsynet med en første gruppe af fire udvendigt rundtgå- ende holderibber 6 og en anden gruppe af to udvendigt ringformet rundtgående holderibber 7 samt tænder 8. Holderibberne 6 har skrånende koniske flanker 6a, som vender mod tilslutningsstudsens 1 påskubningsende 9 og 10 danner en vinkel på ca. 30° med tilslutningsstudsens 1 længdeakse 10, samt radiale flanker 6b. Holderibberne 7 har ligeledes skrånende koniske flanker 7a, som imidlertid vender bort fra påskubningsenden 9, og som ligeledes danner en vinkel på ca. 30° med længdeaksen 10, samt 15 radiale flanker 7b. Holderibberne 7 ligger på en større omkreds af afsnittet 4 end holderibberne 6. Holderibbernes 6 afstand er omtrent lig med bredden eller lig med den halve deling af holderibberne 6. Holderibberne 7 er smallere end eller har en bredde på ca. 75% af bredden 20 af holderibberne 6 og en mindre deling end disse, nemlig ca. 63% af holderibbernes 6 deling. Også tænderne 8 har en mod påskubningsenden 9 vendende skrånende flanke 8a og en radial flanke 8b, men et trekantformet aksialt- og radialt tværsnit. De ligger med regelmæssig afstand på 25 den største omkreds af det koniske afsnit 4 og grænser umiddelbart op til den ene holderibbe 7. Den radiale højde af holderibberne 6,7 og tænderne 8 er omtrent lig med den halve bredde af holderibberne 6.The tapered portion 4 of the connector 1 is provided with a first group of four externally-extending retaining ribs 6 and a second group of two externally annular circumferential retaining ribs 7 and teeth 8. The retaining ribs 6 have sloping tapered flanks 6a facing the connector nozzle 1. pushing ends 9 and 10 form an angle of approx. 30 ° with the longitudinal axis 10 of the connector 1 and radial flanks 6b. The retainer ribs 7 also have sloping conical flanks 7a which, however, project away from the pushing end 9 and which also form an angle of approx. 30 ° with longitudinal axis 10, and 15 radial flanks 7b. The holder ribs 7 lie on a larger circumference of the section 4 than the holder ribs 6. The distance of the holder ribs 6 is approximately equal to the width or equal to half the division of the holder ribs 6. The holder ribs 7 are narrower than or have a width of approx. 75% of the width 20 of the holder ribs 6 and a smaller pitch than these, namely approx. 63% of the holder's 6 split. Also the teeth 8 have a sloping edge 8a facing the pushing end 9 and a radial edge 8b, but a triangular axial and radial cross section. At regular intervals of 25, they are the largest circumference of the conical section 4 and immediately adjacent to one of the support ribs 7. The radial height of the support ribs 6,7 and the teeth 8 is approximately equal to half the width of the retainer ribs 6.

Den koniske flade af afsnit 4 danner med længdeaksen 30 10 en vinkel på ca. 5°. Det til det koniske afsnit 4 grænsende afsnit 11 af tilslutningsstudsen 1 er cirkulærcylindrisk. Til dette afsnit 11 slutter der sig et yderligere cirkulærcylindrisk afsnit eller anslag 12, hvis udvendige diameter er større end diameteren af afsnittet 35 11, og som tjener som anslag for slangen 5 ved påskubnin- gen på tilslutningsstudsen 1. Det derefter følgende cirkulærcylindriske udvendige gevindafsnit 13 på tilslut - 4 - 151500 ningsstudsen 1 med gevindet 3 har en endnu større udvendig diameter end afsnit 12. Til afsnittet 13 slutter der sig et sekskantaf snit 14 og til dette et yderligere cylindrisk gevindafsnit 15.The conical surface of section 4 forms with the longitudinal axis 30 10 an angle of approx. 5 °. The section 11 adjacent to the tapered section 4 of the connector 1 is circular cylindrical. This section 11 is joined by a further circular cylindrical section or stop 12, the outside diameter of which is greater than the diameter of section 35 11 and which acts as a stop for the hose 5 by pushing on the connecting pin 1. The following circular cylindrical outer thread section 13 on the connection - 4 - 151500 socket 1 with the thread 3 has an even larger outside diameter than section 12. A section hexagon 14 is joined to section 13 and to this a further cylindrical thread section 15.

5 Klemmen har et indvendigt cirkulærcylindrisk afsnit 16, et indvendigt konisk afsnit 17 og et indvendigt gé-vindafsnit 18, som er skruet sammen med det udvendige gevindafsnit 13. Det indvendigt koniske afsnit 17 er ligeledes forsynet med ringformet rundtgående holderibber 19, 10 som hver især har en med længdeaksen 10 parallel eller koaksial flanke 19a og en fra påskubningsenden 9 på tilslutningsstudsen 1 vendende radial flanke 19b. Disse holderibber 19 har lille aksial afstand, en mindre, omtrent halvt så stor bredde som holderibberne 6 og en væ-15 sentlig mindre radial højde end holderibberne 6, kun ca.The clamp has an inner circular cylindrical section 16, an inner tapered section 17 and an inner threaded section 18 which is screwed together with the outer threaded section 13. The inner tapered section 17 is also provided with annular circular retaining ribs 19, 10 each has a longitudinal axis 10 parallel or coaxial edge 19a and a radial edge 19b facing away from the push-on end 9 of the connecting pin 1. These retaining ribs 19 have a small axial distance, a smaller, about half the width of the retaining ribs 6, and a substantially less radial height than the retaining ribs 6, only approx.

9% af højden af holderibberne 6. Hældningsvinklen for den indvendige konus i klemmen 2 eller for afsnittet 17 er omtrent lig med hældningsvinklen for afsnittet 4.9% of the height of the holder ribs 6. The angle of inclination of the inner cone in the terminal 2 or of section 17 is approximately equal to the angle of inclination of section 4.

Slangen 5 opvarmes umiddelbart før påskubningen på 20 tilslutningsstudsens 1 afsnit 4 så meget, at den bliver let plastisk, hvorpå den i opvarmet og plastisk tilstand skubbes på afsnittet 4. Opvarmningen letter ikke kun påskubningen af slangen 5, men har også den fordel, at det plastiske materiale ved de mod påskubningsenden 9 25 vendende flanker 6a og 7b af holderibberne 6 og 7 stuk- kes sammen, især ved de radiale flanker 7b af holderibberne 7 og trænger forholdsvis dybt ind i noterne mellem holderibberne 6,7. Dette medfører et storfladet anlæg af slangematerialet ved holderibberne 6,7 og en tilsva-30 rende høj tætningsvirkning, navnlig i området for de ra diale flanker 7b, som yderligere understøttes af den i retning af længdeaksen 10 (mod højre) på flankerne 6a,7b virkende trykkomponent af det gennem slangen 5 og tilslutningsstudsen 1 strømmende fluidum. Tillige trænger 35 tænderne 8 dybt ind i slangematerialet, så at de hindrer en drejning af slangen 5 ved stramning af møtrikken 2, som derpå skubbes over.den på tilslutningsstudsen 1 på- - 5 - 151500 krympede slangeende. Til lettelse af stramningen af møtrikken 2 har denne regelmæssigt fordelt langs sin periferi aksialnoter 20, som en nøgle med tilsvarende fremspring kan gribe ind i. Tætningsvirkningen forøges yder-5 ligere ved de koniske former af tilslutningsstudsen 1, møtrikken 2 samt disses holderibber 19, som sørger for en yderligere indtrængning af slangematerialet i noterne mellem holderibberne 6,7 og en forøgelse af slangematerialets tryk mod flankerne 6a,7b.The hose 5 is heated immediately before pushing on the section 4 of the connecting rod 1 so much that it becomes slightly plastic, and then in the heated and plastic state it is pushed to the section 4. The heating not only facilitates the pushing on of the hose 5, but also has the advantage that it plastic material at the flanges 6a and 7b facing the pushing end 9 25 of the ribs 6 and 7 is knit together, especially at the radial flanks 7b of the holder ribs 7 and penetrates relatively deep into the grooves between the holder ribs 6,7. This results in a large-flat abutment of the hose material at the support ribs 6.7 and a correspondingly high sealing effect, especially in the region of the radial flanks 7b, which is further supported by the longitudinal axis 10 (to the right) on the flanks 6a, 7b. actuating pressure component of the fluid flowing through the hose 5 and the connector nozzle 1. In addition, the teeth 8 penetrate deep into the hose material so as to prevent a rotation of the hose 5 by tightening the nut 2, which is then pushed over the shrinking hose end of the connection nozzle 1. To ease the tightening of the nut 2, it has regularly distributed along its circumferential axial grooves 20, which a key with a corresponding protrusion can engage. The sealing effect is further enhanced by the tapered forms of the connector 1, the nut 2 and their holder ribs 19, which provides for a further penetration of the hose material into the grooves between the retainer ribs 6,7 and an increase in the pressure of the hose material against the flanks 6a, 7b.

10 Påkrympningen af slangematerialet 5 på tilslutnings studsen 1 har den yderligere fordel, at den indvendige kontur af slangen nøje tilpasser sig den udvendige kontur af tilslutningsstudsen 1, da disse konturer af fremstillingstekniske grunde, navnlig ved fremstilling ved 15 sprøjtestøbning af også tilslutningsstudsen, og på grund af de uundgåelige tolerancer ikke altid er nøjagtigt rotationssymmetriske (cirkulærcylindriske), men undertiden afviger betydeligt fra rotationssymmetrien, eventuelt endog har et svagt ovalt radialtværsnit. I denne sammen-20 hæng er sikringen mod drejning af slangen 5 ved hjælp af tænderne 8 særlig vigtig, da en drejning af slangen 5 efter påkrympningen, altså efter at slangen 5 ved stivning på tilslutningsstudsen 1 har antaget dennes kontur, ville medføre en uregelmæssig trykfordeling langs om-25 kredsen af tilslutningsstudsen 1 (eller afsnittet 4).10 The shrinkage of the hose material 5 on the connection socket 1 has the additional advantage that the inner contour of the hose closely adapts to the outer contour of the connection socket 1, since these contours for manufacturing reasons, in particular when fabricated by injection molding of the socket, as well. of the inevitable tolerances are not always exactly rotationally symmetric (circular cylindrical), but sometimes deviate significantly from the rotational symmetry, possibly even having a slightly oval radial cross section. In this connection, the protection against rotation of the hose 5 by means of the teeth 8 is particularly important, since a rotation of the hose 5 after shrinkage, i.e. after the hose 5 has assumed its contour by stiffening on the connecting rod 1, would cause an irregular pressure distribution. along the circumference of the connector 1 (or section 4).

Tænderne 8 bidrager desuden ligesom holderibberne 6,7 og 19 til aksialsikring af slangen 5 på tilslutningsstudsen 4, især mod trykstød.In addition, the teeth 8, like the retainer ribs 6,7 and 19, contribute to the axial locking of the hose 5 on the connection socket 4, especially against compression shocks.

Det forbi påskubningsenden 9 fremstikkende endeaf-30 snit 16 af møtrikken 2 sørger for en radial støtte af slangen 5 i området for dette ringformede endeafsnit 16 mod bøjning, hvis slangen 5 påvirkes til bøjning. På denne måde undgås en udtrækning af slangen 5 af indgrebet mellem holderibberne 6,7 og den deraf betingede fare for 35 en udglidning af slangen af slangekoblingen. På samme måde hindres ved denne slangestøtte en afbrækning af en del af eller hele studsafsnittet 4 ved en bøjning af slangen 5.The end portion 30 protruding past the pushing end 9 of the nut 2 provides a radial support of the hose 5 in the region of this annular end portion 16 against bending if the hose 5 is actuated to bend. In this way, an extension of the hose 5 is avoided by the engagement between the support ribs 6,7 and the consequent danger of a sliding of the hose by the hose coupling. Similarly, at this hose support a breakage of part or all of the bounce section 4 is prevented by a bend of the hose 5.

Claims (3)

1. Slangekobling til en slange af termoplastisk materiale med en tilslutningsstuds (1), på hvilken slangen (5) kan skubbes, og med en slangen omgivende klemme (2) til fastklemning af den på tilslutningsstudsen skubbede 5 slange, idet tilslutningsstudsen (1) på sin yderside har ringformet rundtgående holderibber (6,7), som hver især har en radial og en skrånende flanke, idet flankehældningen (6a) for i det mindste en holderibbe (6) er modsat hældningen (7a) for andre holderibber (7), og idet 10 klemmen er en omløbermøtrik (2), samt idet både den ind vendige diameter af møtrikken (2) og den udvendige diameter af tilslutningsstudsen aftager i retning af tilslutningsstudsens påskubningsende, og idet der på den side af holderibberne (6,7), som vender bort fra påskubningsenden (9)af til-15 slutningsstudsend) findes et radialt forløbende anslag (12), kendetegnet ved, at tilslutningsstudsen (1) har i indbyrdes afstand anbragte tænder (8) på en periferi, hvilke tænder springer radialt frem og er indrettet til at komme i indgreb med slangens (5) indvendige 20 periferiflade, og har en bort fra tilslutningsstudsens (1) påskubningsende (9) vendende flanke (8b) i afstand fra det nævnte anslag (12).1. Hose coupling to a hose of thermoplastic material with a connector (1) on which the hose (5) can be pushed, and with a hose surrounding the clamp (2) for clamping the 5 hose pushed on the connection nozzle, the connection nozzle (1) of its outer face has annular circumferential retaining ribs (6,7), each having a radial and a sloping edge, the flank inclination (6a) of at least one retaining rib (6) being opposite to the inclination (7a) of other retaining ribs (7), and wherein the clamp is a nut (2), and as both the inside diameter of the nut (2) and the outside diameter of the connecting pin decrease towards the pushing end of the connecting rod, and on that side of the retaining ribs (6,7), away from the push-on end (9) of the connecting rod end) there is a radially extending stop (12), characterized in that the connecting pin (1) has spaced-apart teeth (8) on a periphery which radially protrudes and is arranged to engage the inner surface of the hose (5), and has a flange (8b) facing away from the push-on end (9) of the connector (1) from the abutment (12). 2. Slangekobling ifølge krav 1, kendetegnet ved, at tænderne (8) har en mod studsens (1) på- 25 skubningsende (9) aksialt og radialt skrånende flanke (8a).Hose coupling according to claim 1, characterized in that the teeth (8) have an axially and radially sloping edge (8a) which is pushing (9) on the pushing end (9). 3. Slangekobling ifølge krav 2, kendetegnet ved, at den i retning hen mod påskubningsenden (9) faldende flanke (8a) består af to flankedele, som 30 støder sammen i en aksialplan for tilslutningsstudsen (1).Hose coupling according to claim 2, characterized in that the flank (8a) falling towards the push-on end (9) consists of two flange parts which collide in an axial plane of the connection stud (1).
DK251582A 1981-06-06 1982-06-04 HOSE CLUTCH DK151500C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813122709 DE3122709C2 (en) 1981-06-06 1981-06-06 Hose coupling and method for attaching a hose to a connection piece of this coupling
DE3122709 1981-06-06

Publications (3)

Publication Number Publication Date
DK251582A DK251582A (en) 1982-12-07
DK151500B true DK151500B (en) 1987-12-07
DK151500C DK151500C (en) 1988-08-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
DK251582A DK151500C (en) 1981-06-06 1982-06-04 HOSE CLUTCH

Country Status (4)

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EP (1) EP0066742B1 (en)
DE (1) DE3122709C2 (en)
DK (1) DK151500C (en)
ES (1) ES265614Y (en)

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DK151500C (en) 1988-08-15
EP0066742B1 (en) 1986-03-26
ES265614U (en) 1983-01-01
DE3122709C2 (en) 1986-03-20
DK251582A (en) 1982-12-07
EP0066742A1 (en) 1982-12-15
DE3122709A1 (en) 1983-01-05
ES265614Y (en) 1983-07-01

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