FR2933464A1 - Damper pulley for engine of automobile, has inner and outer elements whose visual marks are angularly moved when ply is worn to point where ply does not ensure connection function, where angular movement between marks is visually observed - Google Patents

Damper pulley for engine of automobile, has inner and outer elements whose visual marks are angularly moved when ply is worn to point where ply does not ensure connection function, where angular movement between marks is visually observed Download PDF

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Publication number
FR2933464A1
FR2933464A1 FR0803763A FR0803763A FR2933464A1 FR 2933464 A1 FR2933464 A1 FR 2933464A1 FR 0803763 A FR0803763 A FR 0803763A FR 0803763 A FR0803763 A FR 0803763A FR 2933464 A1 FR2933464 A1 FR 2933464A1
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FR
France
Prior art keywords
marks
ply
worn
engine
point
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Withdrawn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
FR0803763A
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French (fr)
Inventor
Jacky Chmil
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR0803763A priority Critical patent/FR2933464A1/en
Publication of FR2933464A1 publication Critical patent/FR2933464A1/en
Withdrawn legal-status Critical Current

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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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H2055/366—Pulleys with means providing resilience or vibration damping
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Abstract

The pulley has an inner element (1) and an outer element (3), which are coaxial to each other and connected by a rubber ply (2), where each element is provided with a visual mark (4). The marks are aligned on radii when the rubber ply assures its connection function. The marks are angularly moved when the rubber ply is worn to a point where the ply does not ensure the connection function. The angular movement between the marks is visually observed.

Description

-1- La présente invention concerne l'addition de repères sur poulie dite DAMPER pour visualiser le décalage angulaire des éléments de la poulie. La poulie est composée d'un élément interne et d'un élément externe, ces deux éléments réunis par un caoutchouc. The present invention relates to the addition of marks on a pulley called DAMPER to display the angular offset of the elements of the pulley. The pulley is composed of an internal element and an external element, these two elements joined by a rubber.

Le vieillissement de l'ensemble, ou les contraintes auxquelles il est soumis, provoque souvent le décollage du caoutchouc et/ou cause sa détérioration, ce qui entraîne le décalage angulaire des éléments de la poulie, sans que cela ne soit visible à l'oeil nu. Exemple d'un risque engendré par une poulie défectueuse: pour le moteur 10 d'une automobile équipée d'une distribution par courroie crantée, les dommages causés peuvent empêcher la réparation du moteur. Le caoutchouc (2) détérioré est happé par la distribution en mouvement et s'intercale entre la courroie et le pignon qui l'entraîne, provoquant un dérapage entre les deux éléments (pignon - courroie), ce qui a pour effet de décaler la 15 distribution. Pour le moteur, possibilité d'endommager : soupapes, culasse, pistons, arbre à cames, et d'autres éléments du moteur. Les repères sont alignés face à face de part et d'autre du caoutchouc : un repère sur l'élément interne et l'autre repère sur l'élément externe, ce qui permet 20 de constater au départ du décollage du caoutchouc que les repères ne sont plus l'un face à l'autre. La présence de ce contrôle visuel permet le remplacement anticipé de la poulie, avant que la détérioration du caoutchouc ne cause des dégâts irréversibles.The aging of the assembly, or the stresses to which it is subjected, often causes the rubber to take off and / or causes its deterioration, which causes the angular offset of the elements of the pulley, without this being visible to the eye. bare. Example of a risk caused by a defective pulley: for the engine 10 of an automobile equipped with a timing belt distribution, the damage caused can prevent the repair of the engine. The damaged rubber (2) is caught by the moving distribution and is inserted between the belt and the pinion driving it, causing a skid between the two elements (pinion - belt), which has the effect of shifting the 15 distribution. For the engine, possibility of damage: valves, cylinder head, pistons, camshaft, and other engine components. The marks are aligned face to face on either side of the rubber: a mark on the inner element and the other mark on the outer element, which makes it possible to note at the start of the take-off of the rubber that the marks do not are more one against the other. The presence of this visual check allows for the anticipated replacement of the pulley, before the deterioration of the rubber causes irreversible damage.

25 Les dessins annexés illustrent l'invention : La figure 1 représente le dispositif d'origine après adjonction de l'invention. La figure 2 représente l'ensemble décrit en figure 1 après décollage et/ou détérioration du caoutchouc entraînant le décalage angulaire des éléments (1) et (3).The accompanying drawings illustrate the invention: Figure 1 shows the original device after addition of the invention. FIG. 2 represents the assembly described in FIG. 1 after take-off and / or deterioration of the rubber causing the angular displacement of elements (1) and (3).

30 En référence à ces dessins, le dispositif d'origine comporte un élément interne (1), un caoutchouc (2) et un élément externe (3). Nous lui ajoutons deux 2933464 -2 repères (4). Le décollage du caoutchouc est invisible tant que le caoutchouc reste entier. Le frottement de l'un ou des deux éléments (1) et (3) contre le caoutchouc (2) entraîne sa destruction. Les éléments (1) et (3) s'en retrouvent décalés, ce qui 5 annule la fonction de la poulie (FIG-2). L'ajout des repères peut être effectué à moindre coût, de forme et de dimension différentes, gravés, en relief, peints et autres, sur l'une ou sur les deux faces de la poulie. Par exemple, il est possible de graver et peindre une marque d'un demi-millimètre de profondeur sur les pièces (1) et (3), les deux marques se faisant face dans le sens du diamètre de la poulie. Cette invention est particulièrement destinée au contrôle visuel de l'état des poulies dites DAMPER. With reference to these drawings, the original device comprises an inner member (1), a rubber (2) and an outer member (3). We add two 2933464 -2 markers (4). The takeoff of the rubber is invisible as long as the rubber remains intact. The friction of one or both elements (1) and (3) against the rubber (2) causes its destruction. The elements (1) and (3) are staggered, which cancels the function of the pulley (FIG-2). Adding markers can be done at a lower cost, of different shape and size, engraved, embossed, painted and others, on one or both sides of the pulley. For example, it is possible to engrave and paint a mark half a millimeter deep on parts (1) and (3), the two marks facing each other in the direction of the diameter of the pulley. This invention is particularly intended for the visual control of the condition of pulleys known as DAMPER.

Claims (1)

REVENDICATIONS1 Poulie constituée de deux éléments coaxiaux (1) et (3) réunis par une épaisseur de caoutchouc (2) caractérisée en ce que chacun des deux éléments (1) et (3) comporte un repère visuel (4) ---les deux repères (4) étant alignés lorsque le caoutchouc assure sa fonction de liaison,et étant décalés angulairement lorsque le caoutchouc est usé au point de ne plus assurer la fonction de liaison,ce décalage angulaire (a) entre les deux repères (4) pouvant être constaté visuellement 2 Poulie selon la revendication 1 , caractérise en ce que les deux repères (4) sont alignés sur des rayons CLAIMS Pulley consisting of two coaxial elements (1) and (3) joined by a rubber thickness (2) characterized in that each of the two elements (1) and (3) has a visual cue (4) --- both marks (4) being aligned when the rubber performs its function of connection, and being angularly offset when the rubber is worn to the point of no longer provide the binding function, this angular offset (a) between the two marks (4) can be visually observed 2 Pulley according to claim 1, characterized in that the two marks (4) are aligned on radii
FR0803763A 2008-07-03 2008-07-03 Damper pulley for engine of automobile, has inner and outer elements whose visual marks are angularly moved when ply is worn to point where ply does not ensure connection function, where angular movement between marks is visually observed Withdrawn FR2933464A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0803763A FR2933464A1 (en) 2008-07-03 2008-07-03 Damper pulley for engine of automobile, has inner and outer elements whose visual marks are angularly moved when ply is worn to point where ply does not ensure connection function, where angular movement between marks is visually observed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0803763A FR2933464A1 (en) 2008-07-03 2008-07-03 Damper pulley for engine of automobile, has inner and outer elements whose visual marks are angularly moved when ply is worn to point where ply does not ensure connection function, where angular movement between marks is visually observed

Publications (1)

Publication Number Publication Date
FR2933464A1 true FR2933464A1 (en) 2010-01-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR0803763A Withdrawn FR2933464A1 (en) 2008-07-03 2008-07-03 Damper pulley for engine of automobile, has inner and outer elements whose visual marks are angularly moved when ply is worn to point where ply does not ensure connection function, where angular movement between marks is visually observed

Country Status (1)

Country Link
FR (1) FR2933464A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019119755A1 (en) * 2019-07-22 2021-01-28 Schaeffler Technologies AG & Co. KG Vibration damper with wear indicator marking for functional checking

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222953A (en) * 1963-05-27 1965-12-14 Lysle I Benjamen Torsion-keyed vibration damper
US3651704A (en) * 1970-05-01 1972-03-28 Illinois Tool Works Molded article, mold and method of manufacture
US5405296A (en) * 1993-12-28 1995-04-11 Tesma International Inc. Torsional vibration damper
EP1176337A1 (en) * 2000-01-14 2002-01-30 FUKOKU Co., Ltd. Damper and production method therefor
US20040166974A1 (en) * 2003-02-21 2004-08-26 Yahya Hodjat Crankshaft damper and method of assembly
WO2007118721A1 (en) * 2006-04-13 2007-10-25 Trelleborg Automotive Technical Centre Gmbh Torsional vibration damper having a toothing contour

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222953A (en) * 1963-05-27 1965-12-14 Lysle I Benjamen Torsion-keyed vibration damper
US3651704A (en) * 1970-05-01 1972-03-28 Illinois Tool Works Molded article, mold and method of manufacture
US5405296A (en) * 1993-12-28 1995-04-11 Tesma International Inc. Torsional vibration damper
EP1176337A1 (en) * 2000-01-14 2002-01-30 FUKOKU Co., Ltd. Damper and production method therefor
US20040166974A1 (en) * 2003-02-21 2004-08-26 Yahya Hodjat Crankshaft damper and method of assembly
WO2007118721A1 (en) * 2006-04-13 2007-10-25 Trelleborg Automotive Technical Centre Gmbh Torsional vibration damper having a toothing contour

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019119755A1 (en) * 2019-07-22 2021-01-28 Schaeffler Technologies AG & Co. KG Vibration damper with wear indicator marking for functional checking

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