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WO2012031844A1 - Collier de tuyau destiné à fixer une extrémité de tuyau, en particulier une extrémité d'un tuyau d'air de charge ou d'eau de refroidissement - Google Patents

Collier de tuyau destiné à fixer une extrémité de tuyau, en particulier une extrémité d'un tuyau d'air de charge ou d'eau de refroidissement Download PDF

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Publication number
WO2012031844A1
WO2012031844A1 PCT/EP2011/063678 EP2011063678W WO2012031844A1 WO 2012031844 A1 WO2012031844 A1 WO 2012031844A1 EP 2011063678 W EP2011063678 W EP 2011063678W WO 2012031844 A1 WO2012031844 A1 WO 2012031844A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
hose clamp
spring element
clamp
band
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.)
Ceased
Application number
PCT/EP2011/063678
Other languages
German (de)
English (en)
Inventor
Hartmut Brill
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.)
ContiTech MGW GmbH
Original Assignee
ContiTech MGW GmbH
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 ContiTech MGW GmbH filed Critical ContiTech MGW GmbH
Publication of WO2012031844A1 publication Critical patent/WO2012031844A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16L33/02—Hose-clips
    • F16L33/08—Hose-clips in which a worm coacts with a part of the hose-encircling member that is toothed like a worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together

Definitions

  • the invention relates to a hose clamp with a tensioning band and a radially acting spring device on the inside of the tension band which extends in the circumferential direction of the hose clamp over less than half the circumference of the clamp.
  • Charge air hoses must be securely attached to fixed components, such. As pipes made of plastic or metal, the turbocharger, the intercooler or the engine intake system, are connected.
  • the previously used connections between the elastomeric hoses and the rigid components are mainly based on the principle of clamping, z. B. the attachment of a hose with a hose clamp In this connection, the hose end is pushed onto a fixed nozzle and then with a
  • Hose clamp clamped circumferentially on this by contraction of the clamping band via a clamping screw with a precisely defined torque.
  • a hose clamp with a spring-loaded Nachspann driving is known, which is effective between the clamping band and extending in the circumferential direction of the hose clamp over less than half the clamp circumference and radially towards the clamp center curved tab.
  • the tab is connected in the untensioned state of the clamp with the clamping band and should be displaceable along the clamping band.
  • the curvature of the spring-loaded tab should substantially correspond to the curvature of the rest of the tension band.
  • the clip which is short in the circumferential direction of the clamp is moved essentially only in the radial direction by the spring device supporting the one hand on the inside of the tensioning band and on the other hand on the tab.
  • a hose clamp formed with such a spring device is technically complex to manufacture and hinder assembly.
  • the displacement of the tab ends on the inside of the strap is often not trouble-free, resulting in an uneven Umschlingungskraft the hose clamp with the risk of leaks and deduction of the hose end of the pipe socket.
  • the invention has for its object to provide a hose clamp of the type mentioned above, which is reliable in operation and technically less expensive in the structure.
  • the spring means is an extending in the circumferential direction of the clamping band elastomer molding, which is flat leaking to the ends.
  • the spring element of the spring device is formed by the elastomer molding.
  • the elastomeric molded part causes a restoring spring action on its own and maintains the wrapping force of the hose clamp uniformly.
  • the curvature of the spring element is largely adapted to the curvature of the tensioning band.
  • the spring travel of the spring element depends on its dimensions, especially its thickness. The essentially determines the adjustment of the spring element.
  • the spring element acts like an elastomeric spring.
  • the elastomeric material of the spring element is selected such that a good relaxation behavior, a sufficient spring travel and a sufficient spring characteristic are present. The necessary choice of the elastomeric material depends on the dimensions and stresses of the hose clamp connection.
  • the elastomeric spring element compensates for the relaxation of a mounted hose. As a result, the tightness of the hose clamp connection is ensured over the entire service life of the hose.
  • a development of the invention provides that the thickness of the elastomer molding is designed to be decreasing toward the two ends. As a result, the maximum thickness in the middle region of the elastomer molding, which advantageously has the consequence that the travel over the thickness can be determined.
  • the decreasing ends contrary to the solution with metal tab, there is no change in the circumferential force, since there is virtually no heel between the molded part ends and the inner surface of the tensioning band. The peripheral force is even.
  • an advantageous embodiment of the invention provides that the elastomer molding is curved radially to the clamp center.
  • the part formed in this way is very easy to produce in terms of shape and forms a design that can be used on almost all clamps, even on a second mounting, on a defined clamp size.
  • the elastomer molding is formed sickle-shaped.
  • the spring element is fastened virtually stress-free on the clamp band. A release of the spring element during transport is thereby prevented.
  • the elastomer molding is formed convex in cross section to the interior of the hose clamp. This allows a well-distributed surface pressure.
  • the spring characteristic of the elastomeric molded part can be influenced.
  • the elastomeric molded part is detachably connected to the clamping band.
  • the elastomeric molding can be easily replaced by another with a suitable spring characteristic. It is also possible to retrofit conventional hose clamps.
  • a development of the invention provides that the hook-shaped longitudinal edges of the elastomeric molding surround the edges of the clamping band. The edges are rolled over and folded back after insertion around the edges of the strap.
  • the elastomer molded part sitting in the hose clamp compensates for the setting of the assembled hose end.
  • Setting is the time- and temperature-dependent plastic deformation under load. In this case, the deformation of the elastomer molded part under the mounted hose clamp.
  • the spring properties of the elastomer molding are designed according to the present hose material.
  • the person skilled in the art will choose a suitable elastomer material for the particular application and / or adapt the shaping of the elastomer molded part, eg the thickness.
  • the hose clamp system according to the invention is suitable for fastening a hose made of any elastomeric material (eg: VMQ, AEM, NR, EPDM, ECO) with or without knitted fabric or fabric reinforcement.
  • the elastomeric molded part must be made of an elastomeric material with a corresponding setting behavior and, at the same time, corresponding temperature resistance (eg: NR or VMQ). With the formation of the invention, the tightness of the hose clamp connection and a long-term secure attachment are achieved.
  • Fig. 1 shows schematically an end view of a hose clamp with an inner spring element in the form of a crescent-shaped elastomer molding
  • FIG. 2 is a schematic front view of a hose clamp with an outward curvature in the circumference of the tension band
  • FIG. 3 is a schematic front view of a hose clamp without a curvature in the circumference of the tension band
  • FIG. 4 is a schematic detail of a hose clamp with a profiled back side, two longitudinal, hook-shaped undercuts having elastomer molding;
  • FIG. 5 is a schematic detail of a hose clamp with a crescent-shaped elastomer molding, which is fastened by means of a back-side button formation in an opening of the clamping band.
  • FIGS. 10 to 12 show further different embodiments of the elastomeric molded part acting as a spring element, in each case in side view and associated cross-section;
  • FIG. 14 uses the elastomer molding shown in FIG. 14
  • the hose clamp 2 consists of a tension band 3, a tension lock 4 and a spring device 5, which is formed from a crescent-shaped elastomer molded part 6.
  • the tension lock 4 consists of a housing 7 and a clamping screw 8.
  • the one end portion 11 of the tension band 3 is passed through the housing 7 and connected to the bottom thereof.
  • the other end portion 12 is also passed through the housing 7 and provided on its outside with radially projecting, not shown teeth.
  • the thread of the clamping screw 8 acts when tightening the hose clamp 2 with the
  • the spring element of the spring device 5 is formed by the elastomer molding 6. It is arranged on the inside of the tension band 3 where in the retightening of the
  • Tension band 3 no or only an insignificant shift of the tension band 3 takes place relative to the hose surface.
  • the spring element 6 is at an angle ⁇ to the clamping screw 8 of about 120 °.
  • the spring element 6 is sickle-shaped and has circumferentially two thin ends 13 and 14, which conform almost seamlessly to the inner surface of the clamping band 3.
  • the own spring force of the spring element 6 causes an automatic adjustment of the fixed tension of the hose clamp 2 on the hose end, not shown here, thereby securely clamped remains in its position.
  • the curvature of the spring element 6 is largely adapted to the curvature of the tension band 3.
  • the spring travel of the spring element 6 depends on the selected dimensions, especially on the thickness of the spring element 6. The essentially determines the adjustment of the spring element 6.
  • the spring element 6 acts like an elastomeric spring.
  • a hose clamp 2 is shown with an outward curvature 21 of the tension band 3.
  • a sickle-shaped elastomeric spring element 6 is used whose curvature adapts to the curvature of the rest of the tension band 3 and thus comprises a circular tension range A.
  • the hose clamp 2 according to FIG. 3 has no curvature in the tension band 3.
  • After receiving the elastomeric spring element 6 creates a cross-section B, which is not circular.
  • the hose and the hose nozzle corresponding round clamping cross-section is formed only after tightening the clamping screw 8.
  • the spring element 6 is loosely placed in the hose clamp 2 prior to assembly.
  • the spring element 6 is connected by a form-fitting design with the tension band 3.
  • the crescent-shaped spring element 6 is seen in cross section provided with longitudinal edges 23, on which undercuts 24 are formed, which are mounted on the back, which is directed to the clamping band inner surface, and engage around the edges of the tension band 3.
  • a fastening of the elastomeric spring element 6 is shown on the tension band 3 by means of a mushroom or button fastening 25 on the tension band 3.
  • the crescent-shaped spring element 6 at its zenith on a molded mushroom head, which is pressed into a central opening of the clamping band 3.
  • Figs. 6 to 9 different embodiments of the crescent-shaped elastomeric spring element 3 are shown. All training have in common that the ends 13 and 14 of the crescent-shaped spring element 6 each taper pointed and flat.
  • the spring element 6 according to FIG. 7 has, over the width of the spring element 6, bores 26 which serve to bend the spring element 6.
  • This inner profiling 27 is also in the embodiment of FIG.
  • the embodiments of the elastomeric spring element 6 according to Figures 10 to 12 have in common that these spring elements 6 are made more curved and each have on their back longitudinally extending undercuts 31 which are suitable for embracing the edges of the tension band 3.
  • the training differ due to their cross sections.
  • the cross section has an inwardly directed, transverse convex elevation 32. This can be seen in the embodiment of FIG. 11 in a more pointed course.
  • Fig. 12 has a smooth inner surface 33.
  • an elastomeric spring element 6 ' is shown, which has a straight base 41 in the production state. In the longitudinal direction of the spring element 6 ', a convex curvature 42 is present. On the straight base 41, which faces in the inserted state of the inside of the clamping band 3, extending in the longitudinal direction undercuts 43 are formed, which include the edges of the clamping band 3. If the spring element 6 'inserted into the closed hose clamp 2, the spring element 6' with the base 41 against the inside of the clamping band 3 and inevitably curved according to the clamping band radius.
  • the described spring-loaded Nachspannsystem is achieved that the hose clamp 2 is axially and radially secured against displacement and thus has good operating characteristics.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention porte sur un collier de tuyau (2) qui possède un ruban de serrage (3), et qui présente un dispositif élastique (5) agissant dans la direction radiale, disposé sur le côté intérieur du ruban de serrage (3) et qui, dans la direction circonférentielle du collier de tuyau (2) s'étend sur moins de la moitié de la circonférence du collier. Pour obtenir un resserrage de bonne sécurité de fonctionnement du collier de tuyau pendant le service, le dispositif élastique (5) constitue un élément moulé en élastomère (6) s'étendant dans la direction circonférentielle de la bande de serrage (3) et qui se termine à plat aux deux extrémités (13 et 14).
PCT/EP2011/063678 2010-09-09 2011-08-09 Collier de tuyau destiné à fixer une extrémité de tuyau, en particulier une extrémité d'un tuyau d'air de charge ou d'eau de refroidissement Ceased WO2012031844A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010037419.9 2010-09-09
DE201010037419 DE102010037419A1 (de) 2010-09-09 2010-09-09 Schlauchschelle zur Befestigung eines Schlauchendes, insbesondere eines Endes eines Ladeluft- oder Kühlwasserschlauchs

Publications (1)

Publication Number Publication Date
WO2012031844A1 true WO2012031844A1 (fr) 2012-03-15

Family

ID=44629866

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/063678 Ceased WO2012031844A1 (fr) 2010-09-09 2011-08-09 Collier de tuyau destiné à fixer une extrémité de tuyau, en particulier une extrémité d'un tuyau d'air de charge ou d'eau de refroidissement

Country Status (2)

Country Link
DE (1) DE102010037419A1 (fr)
WO (1) WO2012031844A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014117745A1 (de) * 2014-12-03 2016-06-09 NORRES Beteiligungs-GmbH System und Verfahren zum Befestigen eines Schlauches

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942708A1 (de) * 1979-10-23 1981-04-30 Erich Schlemper Gmbh & Co Kg, 5620 Velbert Schlauchklemme mit ausgleichselement
DE3716327A1 (de) * 1987-05-15 1988-11-24 Stabil Elektronik Gmbh Schlauchschelle
DE4005631A1 (de) 1990-02-22 1991-09-05 Rasmussen Gmbh Schlauchschelle
DE4127017C1 (en) * 1990-02-22 1992-04-23 Rasmussen Gmbh, 6457 Maintal, De Hose clip with clamping strip and radial spring - which is integrally formed with clamping strip lug
DE19533553A1 (de) * 1995-09-11 1997-03-13 Rasmussen Gmbh Vorrichtung zum Festklemmen eines auf einem Rohrendabschnitt aufgeschobenen Schlauchendabschnitts
US6530609B1 (en) * 2002-02-05 2003-03-11 The Goodyear Tire & Rubber Company Hose and clamp assembly
WO2007010931A1 (fr) * 2005-07-20 2007-01-25 Kyoei Fasteners Industry Co., Ltd. Collier de serrage pour tuyaux flexibles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942708A1 (de) * 1979-10-23 1981-04-30 Erich Schlemper Gmbh & Co Kg, 5620 Velbert Schlauchklemme mit ausgleichselement
DE3716327A1 (de) * 1987-05-15 1988-11-24 Stabil Elektronik Gmbh Schlauchschelle
DE4005631A1 (de) 1990-02-22 1991-09-05 Rasmussen Gmbh Schlauchschelle
DE4127017C1 (en) * 1990-02-22 1992-04-23 Rasmussen Gmbh, 6457 Maintal, De Hose clip with clamping strip and radial spring - which is integrally formed with clamping strip lug
DE19533553A1 (de) * 1995-09-11 1997-03-13 Rasmussen Gmbh Vorrichtung zum Festklemmen eines auf einem Rohrendabschnitt aufgeschobenen Schlauchendabschnitts
US6530609B1 (en) * 2002-02-05 2003-03-11 The Goodyear Tire & Rubber Company Hose and clamp assembly
WO2007010931A1 (fr) * 2005-07-20 2007-01-25 Kyoei Fasteners Industry Co., Ltd. Collier de serrage pour tuyaux flexibles

Also Published As

Publication number Publication date
DE102010037419A1 (de) 2012-03-15

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