EP3332150A1 - Assembly comprising an engine accessory, a belt tightener, a securing support and clamping means common to all - Google Patents

Assembly comprising an engine accessory, a belt tightener, a securing support and clamping means common to all

Info

Publication number
EP3332150A1
EP3332150A1 EP16744803.4A EP16744803A EP3332150A1 EP 3332150 A1 EP3332150 A1 EP 3332150A1 EP 16744803 A EP16744803 A EP 16744803A EP 3332150 A1 EP3332150 A1 EP 3332150A1
Authority
EP
European Patent Office
Prior art keywords
accessory
attachment
point
threaded rod
clamping means
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Withdrawn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
EP16744803.4A
Other languages
German (de)
French (fr)
Inventor
Corentin Leborgne
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.)
PSA Automobiles SA
Original Assignee
PSA Automobiles SA
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 PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3332150A1 publication Critical patent/EP3332150A1/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Withdrawn legal-status Critical Current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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members

Definitions

  • the present invention relates to the field of accessory facades of an internal combustion engine.
  • the invention more particularly relates to an assembly comprising an engine accessory, a belt tensioner, a fastening support and clamping means common to each other.
  • certain accessories are driven by the crankshaft of the engine via a belt. These accessories are for example an alternator and an air conditioning compressor.
  • a belt tensioner To ensure the tension of the belt driving the accessories by friction, it is known to use a belt tensioner. This belt tensioner is spring mounted with a pivot point and stretches the belt.
  • the tensioner spring may be either a torsion spring, placed in the axis of the pivot point or a linear spring whose axis is offset relative to the axis of the pivot point, as shown in the document FR2918127.
  • an assembly comprising:
  • a tensioner for tensioning the drive belt, a support for fixing the accessory disposed on the engine block,
  • the belt tensioner and the accessory each comprise a point of attachment
  • the assembly being characterized in that it comprises common clamping means between the mounting bracket of the accessory, the point of attachment of the tensioner and that of the accessory.
  • the accessory is an alternator.
  • the assembly comprises another fixing support and the belt tensioner comprises:
  • a compression spring comprising at its end another point of attachment, this assembly comprising common clamping means for the point of attachment of the spring and / or common clamping means for the point of attachment of the pivot.
  • the attachment point of the tensioner comprises a spacer having a through opening
  • the attachment support of the accessory comprises a through opening
  • the attachment point of the accessory comprises a flange with a through opening
  • the clamping means comprise a threaded rod and two jaws, the threaded rod passing through said orifices and cooperating with the two jaws to clamp the spacer, the flange and the attachment support of the accessory between them.
  • the accessory comprises a second flange with an orifice in which the first jaw is disposed.
  • the first jaw is formed by a slotted keyed sleeve in which the threaded rod is screwed.
  • the first jaw is formed by a sleeve locked in frictional rotation in the second flange.
  • the threaded rod and the second jaw is formed by a screw.
  • the threaded rod comprises a tip adapted to receive a screwdriver, and in that the second jaw is formed by a nut screwing onto the threaded rod).
  • the nut is integral with the spacer.
  • the orifice of the attachment support of the accessory is open longitudinally in U.
  • FIG. 1 is a schematic representation of an accessory facade of an internal combustion engine of a motor vehicle.
  • FIG. 2 is a schematic representation of a first embodiment of the invention.
  • FIG. 3 is a schematic representation of a second embodiment of the invention.
  • FIG. 4 is a schematic representation of a third embodiment of the invention.
  • FIG. 1 shows an accessory frontage 1 of an internal combustion engine 2 of a motor vehicle.
  • the accessory facade comprises peripheral accessories to the engine block of the internal combustion engine 2 intended to be driven by a drive belt.
  • the accessory facade comprises an accessory 3 taking the form of an air conditioning compressor and an alternator 4.
  • the accessory facade may include other accessories such as a water pump, or a power steering pump.
  • the alternator 4 is fixed on the engine 2, at the engine block, on a single support or as in the embodiment illustrated in Figure 1 two separate supports 5a, 5b alternator provided for this purpose.
  • a drive belt 6 is installed around a drive pulley 7 associated with the alternator 4, a drive pulley 8 associated with the compressor 2, and a pulley 9 mounted on a crankshaft 10.
  • a tensioner January 1 ensures proper tensioning of the belt 6.
  • the tensioner January 1 includes a roller 12 rotatably mounted on a support 13 and intended to bear on the belt 6 to stretch this one.
  • the tensioner 1 1 further comprises a compression spring 14, for example a helical spring, one end of which is connected to the support 13 and a pivot 15 connected to the support 13 of the tensioner.
  • the tensioner further comprises two attachment points 16a, 16b.
  • the first attachment point 16a of the tensioner is disposed at the other end of the spring 14 so that the spring 14 is substantially placed between the roller 12 and the first attachment point 16a.
  • the second attachment point 16b is on the pivot 15.
  • the alternator 4 two attachment points, each intended to cooperate with one of the attachment points 16a, 16b of the tensioner 1 1 and one of the brackets 5a, 5b of fixing the alternator.
  • the first attachment point 16a, an attachment point of the alternator 4 and the fixing support 5a are clamped together by common clamping means.
  • the second attachment point 16b, the other attachment point of the alternator and the other support 5b is the same for the second attachment point 16b, the other attachment point of the alternator and the other support 5b.
  • Figure 2 now shows a first embodiment of the clamping means common to the alternator 4 at the point of attachment 16b of the pivot 15 of the belt tensioner.
  • the attachment point of the alternator 4 comprises a first and a second flange 17, 18. In each of the flanges 17, 18 is respectively arranged an opening 19a, 19b opening. The orifices 19a, 19b of each flange are coaxial.
  • the pivot 15 comprises a spacer 20 pierced with an opening 21 opening.
  • the spacer is rotatably mounted in the support 13.
  • a damping material 22 may also be provided around the spacer for vibratory isolation between the spacer and the support 13.
  • the support 5b also comprises an opening 23 opening.
  • the clamping means consist of a screw 24, with a head 25 adapted to receive a screwing tool and a threaded rod 26, integral with the head 25, through which is passed through their respective orifices l. spacer 20, the first flange 17 of the alternator, the support 5b.
  • the threaded rod 26 is then screwed into a keyed sleeve 27 disposed in the orifice 19b of the second flange 18.
  • This sleeve 27 is locked in rotation by a key 28.
  • This key 28 remains slidable in the direction of the threaded rod, so that at the tightening the screw head comes into contact with the spacer 20 to clamp the spacer 20 against the first flange 17 of the alternator 4 while the sleeve 27 comes into contact with the support 5b for fixing the 5b mounting bracket against the first flange 17 of the alternator 4.
  • the screw head 25 and the sleeve 27 thus form the jaws of the clamping device.
  • the key 28 can be replaced by another system blocking the rotation along the axis of the screw, for example the sleeve 27 can be locked in rotation by friction relative to the flange 18.
  • FIG. 3 now shows a second embodiment of the clamping means common to the alternator 4 at the point of attachment 16b of the pivot 15 of the belt tensioner.
  • This second embodiment differs from the first in that the clamping means consist of a threaded rod 26 'with one end a tip 28 adapted to receive a screwing tool, for example a tip type "screw-stars", plus known as the Torx brand, and a nut 29.
  • the threaded rod 26 ' is passed through their respective holes through the spacer 20, the first flange 17 of the alternator, the support 5b.
  • the threaded rod 26 ' is then screwed into a keyed sleeve 27 or another system blocking the rotation along the axis of the screw disposed in the orifice 19b of the second flange 18.
  • the screwing is done by means of the end piece 28 and the screwing tool.
  • the nut is then screwed onto the threaded rod 26 'so that when tightening the nut 29 comes into contact with the spacer 20 to clamp the spacer 20 against the first flange 17 of the alternator 4 while the socket 27 comes into contact with the mounting bracket 5b for the mounting bracket 5b against the first flange 17 of the alternator 4.
  • the nut 29 and the sleeve 27 thus form the jaws of the clamping device.
  • FIG. 4 now shows a third embodiment of the clamping means common to the alternator 4 at the point of attachment 16b of the pivot 15 of the belt tensioner.
  • This third embodiment differs from the second in that the nut 29 is integral with the spacer 20.
  • the threaded rod 26 ' is screwed into the nut 29 through the spacer 20, the first flange 17 of the alternator, the support 5b.
  • the screwing is done by means of the end piece 28 and the screwing tool.
  • the threaded rod 26 ' is then screwed into the keyed socket 27 or another system blocking the rotation along the axis of the screw disposed in the orifice 19b of the second flange 18, which clamps the spacer 20 against the first flange 17 of the alternator 4 while the sleeve 27 comes into contact with the support 5b for fixing the support 5b against the first flange 17 of the alternator 4.
  • the nut 29 and the sleeve 27 thus form the jaws of the clamping device.
  • clamping means described are also suitable as clamping means common to the alternator 4, at the point of attachment 16a of the compression spring 14 and its support 5a for fixing.
  • the orifice 23 of the attachment support, pivot side or spring side can be opened longitudinally so as to form a U, which allows to set up the rod in the mounting bracket, even when the rod is already partially screwed to the socket 27.
  • the keyed sleeve can be replaced by a sliding nut in the flange 18, the inner shape of the orifice 19b being in this case adapted to the outer shape of the nut.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The invention relates to an assembly comprising: an accessory (4) which is peripheral to an engine block of an internal combustion engine to be driven by a driving belt (6), a tightener (11) for tightening the driving belt (6), and a support (5b) for securing the accessory arranged on the engine block, in which the belt (6) tightener (11) and the accessory (4) each comprise a point of attachment (16b), characterised in that it comprises clamping means common to the support (5b) for securing the accessory, the point of attachment (16b) of the tightener (11), and the point of attachment of the accessory (4).

Description

ENSEMBLE COMPRENANT UN ACCESSOIRE MOTEUR, UN TENDEUR DE COURROIE, UN SUPPORT DE FIXATION ET DES  ASSEMBLY COMPRISING A MOTOR ATTACHMENT, A BELT TENSIONER, A FIXING BRACKET AND
MOYENS DE SERRAGE COMMUNS ENTRE EUX La présente invention se rapporte au domaine des façades accessoire de moteur à combustion interne. L'invention concerne plus particulièrement un ensemble comprenant un accessoire moteur, un tendeur de courroie, un support de fixation et des moyens de serrage communs entre eux. Dans un moteur à combustion interne, certains accessoires sont entraînés par le vilebrequin du moteur par l'intermédiaire d'une courroie. Ces accessoires sont par exemple un alternateur et un compresseur de climatisation. Pour assurer la tension de la courroie entraînant les accessoires par frottement, il est connu d'utiliser un tendeur de courroie. Ce tendeur de courroie est monté sur ressort avec un point de pivot et tend la courroie.  The present invention relates to the field of accessory facades of an internal combustion engine. The invention more particularly relates to an assembly comprising an engine accessory, a belt tensioner, a fastening support and clamping means common to each other. In an internal combustion engine, certain accessories are driven by the crankshaft of the engine via a belt. These accessories are for example an alternator and an air conditioning compressor. To ensure the tension of the belt driving the accessories by friction, it is known to use a belt tensioner. This belt tensioner is spring mounted with a pivot point and stretches the belt.
Le ressort du tendeur peut être soit un ressort de torsion, placé dans l'axe du point pivot soit un ressort linéaire dont l'axe est déporté par rapport à l'axe du point de pivot, comme illustré dans le document FR2918127. The tensioner spring may be either a torsion spring, placed in the axis of the pivot point or a linear spring whose axis is offset relative to the axis of the pivot point, as shown in the document FR2918127.
Les contraintes actuelles d'implantation des accessoires sur les moteurs laissent de moins en moins de place pour loger le corps d'un tendeur avec ressort de torsion sur le moteur. Comme illustré par le document JP2007032307, il a par exemple été tenté de faire en sorte que l'alternateur fasse lui-même office de tendeur, cependant une telle approche requiert de rendre l'alternateur mobile et de l'associer à un mécanisme qui en contrôle le mouvement, ce qui rend la solution technique complexe. Par conséquent, le problème à la base de l'invention est de gagner sur l'encombrement des accessoires et du tendeur de courroie, par une solution économique et fiable. The current constraints of locating the accessories on the engines leave less and less room to house the body of a tensioner with torsion spring on the engine. As illustrated by the document JP2007032307, it has for example been attempted to make the alternator itself act as a tensioner, however such an approach requires making the alternator mobile and associate it with a mechanism that control the movement, which makes the technical solution complex. Therefore, the problem underlying the invention is to gain on the size of the accessories and the belt tensioner, by an economical and reliable solution.
Pour atteindre cet objectif, il est prévu selon l'invention un ensemble comprenant : To achieve this objective, there is provided according to the invention an assembly comprising:
-un accessoire périphérique à un bloc moteur d'un moteur à combustion interne destiné à être entraîné par une courroie d'entraînement, a peripheral accessory to an engine block of an internal combustion engine intended to be driven by a drive belt,
-un tendeur destiné à tendre la courroie d'entraînement, -un support de fixation de l'accessoire disposé sur le bloc moteur, a tensioner for tensioning the drive belt, a support for fixing the accessory disposed on the engine block,
dans lequel, le tendeur de courroie et l'accessoire comprennent chacun un point d'attache, wherein, the belt tensioner and the accessory each comprise a point of attachment,
l'ensemble étant caractérisé en ce qu'il comprend des moyens de serrage communs entre le support de fixation de l'accessoire, le point d'attache du tendeur et celui de l'accessoire. the assembly being characterized in that it comprises common clamping means between the mounting bracket of the accessory, the point of attachment of the tensioner and that of the accessory.
Ainsi en mutualisant la fixation de ces trois éléments on rassemble les points de fixation, ce qui permet de gagner en compacité et de réduire le nombre de pièces. Diverses caractéristiques supplémentaires peuvent être prévues, seules ou en combinaisons : Thus by pooling the fixing of these three elements we gather the fixing points, which allows to gain compactness and reduce the number of parts. Various additional features may be provided, alone or in combinations:
Dans une variante, l'accessoire est un alternateur. Dans une autre variante, l'ensemble comprend un autre support de fixation et le tendeur de courroie comprend : In a variant, the accessory is an alternator. In another variant, the assembly comprises another fixing support and the belt tensioner comprises:
- un pivot comportant le point d'attache,  a pivot comprising the point of attachment,
- un ressort de compression comprenant à son extrémité un autre point d'attache, cet ensemble comprenant des moyens de serrage communs pour le point d'attache du ressort et/ou des moyens de serrage communs pour le point d'attache du pivot.  - A compression spring comprising at its end another point of attachment, this assembly comprising common clamping means for the point of attachment of the spring and / or common clamping means for the point of attachment of the pivot.
Dans une variante, le point d'attache du tendeur comprend une entretoise comportant un orifice débouchant, le support de fixation de l'accessoire comprend un orifice débouchant et le point d'attache de l'accessoire comprend une bride avec un orifice débouchant, et en ce que les moyens de serrage comprennent une tige filetée et deux mors, la tige filetée traversant lesdits orifices et coopérant avec les deux mors pour serrer l'entretoise, la bride et le support de fixation de l'accessoire entre eux. Alternatively, the attachment point of the tensioner comprises a spacer having a through opening, the attachment support of the accessory comprises a through opening and the attachment point of the accessory comprises a flange with a through opening, and in that the clamping means comprise a threaded rod and two jaws, the threaded rod passing through said orifices and cooperating with the two jaws to clamp the spacer, the flange and the attachment support of the accessory between them.
Dans une variante, l'accessoire comprend une seconde bride avec un orifice dans lequel est disposé le premier mors. In a variant, the accessory comprises a second flange with an orifice in which the first jaw is disposed.
Dans une variante, le premier mors est formé par une douille clavetée coulissante dans laquelle vient se visser la tige filetée. Dans une autre variante, le premier mors est formé par une douille bloquée en rotation par frottement dans la seconde bride. Dans une variante, la tige filetée et le second mors est formée par une vis. In a variant, the first jaw is formed by a slotted keyed sleeve in which the threaded rod is screwed. In another variant, the first jaw is formed by a sleeve locked in frictional rotation in the second flange. In a variant, the threaded rod and the second jaw is formed by a screw.
Dans une variante, la tige filetée comprend un embout adapté à recevoir un outil de vissage, et en ce que le second mors est formé par un écrou se vissant sur la tige filetée). Dans une variante, l'écrou est solidaire de l'entretoise.  In a variant, the threaded rod comprises a tip adapted to receive a screwdriver, and in that the second jaw is formed by a nut screwing onto the threaded rod). In a variant, the nut is integral with the spacer.
Dans une variante, l'orifice du support de fixation de l'accessoire est ouvert longitudinalement en U. D'autres particularités et avantages apparaîtront à la lecture de la description ci-après d'un mode particulier de réalisation, non limitatif de l'invention, faite en référence aux figures dans lesquelles : In a variant, the orifice of the attachment support of the accessory is open longitudinally in U. Other features and advantages will appear on reading the following description of a particular embodiment, not limiting of the invention, with reference to the figures in which:
- La figure 1 est une représentation schématique d'une façade accessoire d'un moteur à combustion interne de véhicule automobile. - Figure 1 is a schematic representation of an accessory facade of an internal combustion engine of a motor vehicle.
- La figure 2 est une représentation schématique d'un premier mode de réalisation de réalisation de l'invention.  FIG. 2 is a schematic representation of a first embodiment of the invention.
- La figure 3 est une représentation schématique d'un deuxième mode de réalisation de réalisation de l'invention.  - Figure 3 is a schematic representation of a second embodiment of the invention.
- La figure 4 est une représentation schématique d'un troisième mode de réalisation de réalisation de l'invention. - Figure 4 is a schematic representation of a third embodiment of the invention.
La figure 1 montre une façade accessoire 1 d'un moteur 2 à combustion interne de véhicule automobile. FIG. 1 shows an accessory frontage 1 of an internal combustion engine 2 of a motor vehicle.
La façade accessoire comprend des accessoires périphériques au bloc moteur du moteur 2 à combustion interne destinés à être entraîné par une courroie d'entraînement. La façade accessoire comprend un accessoire 3 prenant en l'occurrence la forme d'un compresseur de climatisation et un alternateur 4. La façade accessoire peut comprendre d'autres accessoires comme par exemple une pompe à eau, ou encore une pompe de direction assistée. The accessory facade comprises peripheral accessories to the engine block of the internal combustion engine 2 intended to be driven by a drive belt. The accessory facade comprises an accessory 3 taking the form of an air conditioning compressor and an alternator 4. The accessory facade may include other accessories such as a water pump, or a power steering pump.
L'alternateur 4 est fixé sur le moteur 2, au niveau du bloc moteur, sur un unique support ou comme dans le mode de réalisation illustrée en figure 1 deux supports distinct 5a, 5b d'alternateur prévu à cet effet. Une courroie d'entraînement 6 est installée autour d'une poulie d'entraînement 7 associée à l'alternateur 4, d'une poulie d'entraînement 8 associée au compresseur 2, et d'une poulie 9 montée sur un arbre de vilebrequin 10. Par ailleurs, un tendeur 1 1 assure une mise sous tension adaptée de la courroie 6. Comme illustré sur la figure 1 , le tendeur 1 1 comprend un galet 12 monté rotatif sur un support 13 et destiné à venir en appui sur la courroie 6 pour tendre celle-ci. The alternator 4 is fixed on the engine 2, at the engine block, on a single support or as in the embodiment illustrated in Figure 1 two separate supports 5a, 5b alternator provided for this purpose. A drive belt 6 is installed around a drive pulley 7 associated with the alternator 4, a drive pulley 8 associated with the compressor 2, and a pulley 9 mounted on a crankshaft 10. Furthermore, a tensioner January 1 ensures proper tensioning of the belt 6. As illustrated in Figure 1, the tensioner January 1 includes a roller 12 rotatably mounted on a support 13 and intended to bear on the belt 6 to stretch this one.
Le tendeur 1 1 comprend encore un ressort de compression 14, par exemple un ressort hélicoïdal, dont une extrémité est reliée au support 13 et un pivot 15 relié au support 13 de tendeur. Le tendeur comprend encore deux points d'attache 16a, 16b. Le premier point d'attache 16a du tendeur est disposé à l'autre extrémité du ressort 14 de sorte que le ressort 14 est sensiblement placé entre le galet 12 et ce premier point d'attache 16a. Le deuxième point d'attache 16b est sur le pivot 15. The tensioner 1 1 further comprises a compression spring 14, for example a helical spring, one end of which is connected to the support 13 and a pivot 15 connected to the support 13 of the tensioner. The tensioner further comprises two attachment points 16a, 16b. The first attachment point 16a of the tensioner is disposed at the other end of the spring 14 so that the spring 14 is substantially placed between the roller 12 and the first attachment point 16a. The second attachment point 16b is on the pivot 15.
Par conséquent, il est également prévu pour l'alternateur 4 deux points d'attache, destinés à coopérer chacun avec un des points d'attache 16a, 16b du tendeur 1 1 et un des supports 5a, 5b de fixation de l'alternateur. Ainsi, le premier point d'attache 16a, un point d'attache de l'alternateur 4 et le support 5a de fixation sont serrés entre eux par des moyens de serrage communs. Il en va de même pour le deuxième point d'attache 16b, l'autre point d'attache de l'alternateur et l'autre support 5b. La figure 2 présente maintenant un premier mode de réalisation des moyens de serrage communs à l'alternateur 4, au point d'attache 16b du pivot 15 du tendeur de courroie. Sur la figure 2, le point d'attache de l'alternateur 4 comprend une première et une seconde bride 17, 18. Dans chacune des brides 17, 18 est respectivement aménagé un orifice 19a, 19b débouchant. Les orifices 19a, 19b de chaque bride sont coaxiaux. Therefore, it is also provided for the alternator 4 two attachment points, each intended to cooperate with one of the attachment points 16a, 16b of the tensioner 1 1 and one of the brackets 5a, 5b of fixing the alternator. Thus, the first attachment point 16a, an attachment point of the alternator 4 and the fixing support 5a are clamped together by common clamping means. It is the same for the second attachment point 16b, the other attachment point of the alternator and the other support 5b. Figure 2 now shows a first embodiment of the clamping means common to the alternator 4 at the point of attachment 16b of the pivot 15 of the belt tensioner. In Figure 2, the attachment point of the alternator 4 comprises a first and a second flange 17, 18. In each of the flanges 17, 18 is respectively arranged an opening 19a, 19b opening. The orifices 19a, 19b of each flange are coaxial.
Le pivot 15 comprend une entretoise 20 percée d'un orifice 21 débouchant. L'entretoise est montée rotative dans le support 13. Un matériau amortissant 22 peut également être prévu autour de l'entretoise pour l'isolation vibratoire entre l'entretoise et le support 13. Le support 5b comprend également un orifice 23 débouchant. Dans ce mode de réalisation, les moyens de serrage sont constitués d'une vis 24, avec une tête 25 adaptée à recevoir un outil de vissage et une tige filetée26, solidaire de la tête 25, à travers laquelle est passée par leurs orifices respectifs l'entretoise 20, la première bride 17 de l'alternateur, le support 5b. The pivot 15 comprises a spacer 20 pierced with an opening 21 opening. The spacer is rotatably mounted in the support 13. A damping material 22 may also be provided around the spacer for vibratory isolation between the spacer and the support 13. The support 5b also comprises an opening 23 opening. In this embodiment, the clamping means consist of a screw 24, with a head 25 adapted to receive a screwing tool and a threaded rod 26, integral with the head 25, through which is passed through their respective orifices l. spacer 20, the first flange 17 of the alternator, the support 5b.
La tige 26 filetée vient ensuite se visser dans une douille 27 clavetée disposée dans l'orifice 19b de la seconde bride 18. Cette douille 27 est bloquée en rotation par une clavette 28. Cette clavette 28 reste coulissante dans le sens de la tige filetée, de sorte qu'au serrage la tête 25 de vis vient au contact de l'entretoise 20 pour serrer l'entretoise 20 contre la première bride 17 de l'alternateur 4 tandis que la douille 27 vient au contact du support 5b de fixation pour le support 5b de fixation contre la première bride 17 de l'alternateur 4. La tête 25 de vis et la douille 27 forment ainsi les mors du dispositif de serrage. En variante, la clavette 28 peut être remplacée par un autre système bloquant la rotation selon l'axe de la vis, par exemple la douille 27 peut être bloquée en rotation par frottement par rapport à la bride 18. The threaded rod 26 is then screwed into a keyed sleeve 27 disposed in the orifice 19b of the second flange 18. This sleeve 27 is locked in rotation by a key 28. This key 28 remains slidable in the direction of the threaded rod, so that at the tightening the screw head comes into contact with the spacer 20 to clamp the spacer 20 against the first flange 17 of the alternator 4 while the sleeve 27 comes into contact with the support 5b for fixing the 5b mounting bracket against the first flange 17 of the alternator 4. The screw head 25 and the sleeve 27 thus form the jaws of the clamping device. Alternatively, the key 28 can be replaced by another system blocking the rotation along the axis of the screw, for example the sleeve 27 can be locked in rotation by friction relative to the flange 18.
La figure 3 présente maintenant un deuxième mode de réalisation des moyens de serrage communs à l'alternateur 4, au point d'attache 16b du pivot 15 du tendeur de courroie. Ce deuxième mode de réalisation diffère du premier en ce que les moyens de serrage sont constitués par une tige filetée 26' avec une extrémité un embout 28 adapté à recevoir un outil de vissage, par exemple un embout de type « vis-étoiles », plus connu sous la désignation de sa marque Torx, et d'un écrou 29. Au montage, la tige filetée 26' est passée par leurs orifices respectifs à travers l'entretoise 20, la première bride 17 de l'alternateur, le support 5b. Comme pour le premier mode de réalisation, La tige 26' filetée vient ensuite se visser dans une douille 27 clavetée ou d'un autre système bloquant la rotation selon l'axe de la vis disposée dans l'orifice 19b de la seconde bride 18. Le vissage s'effectue au moyen de l'embout 28 et de l'outil de vissage. L'écrou est ensuite vissée sur la tige filetée 26' de sorte qu'au serrage l'écrou 29 vient au contact de l'entretoise 20 pour serrer l'entretoise 20 contre la première bride 17 de l'alternateur 4 tandis que la douille 27 vient au contact du support 5b de fixation pour le support 5b de fixation contre la première bride 17 de l'alternateur 4. L'écrou 29 et la douille 27 forment ainsi les mors du dispositif de serrage. Figure 3 now shows a second embodiment of the clamping means common to the alternator 4 at the point of attachment 16b of the pivot 15 of the belt tensioner. This second embodiment differs from the first in that the clamping means consist of a threaded rod 26 'with one end a tip 28 adapted to receive a screwing tool, for example a tip type "screw-stars", plus known as the Torx brand, and a nut 29. On mounting, the threaded rod 26 'is passed through their respective holes through the spacer 20, the first flange 17 of the alternator, the support 5b. As for the first embodiment, the threaded rod 26 'is then screwed into a keyed sleeve 27 or another system blocking the rotation along the axis of the screw disposed in the orifice 19b of the second flange 18. The screwing is done by means of the end piece 28 and the screwing tool. The nut is then screwed onto the threaded rod 26 'so that when tightening the nut 29 comes into contact with the spacer 20 to clamp the spacer 20 against the first flange 17 of the alternator 4 while the socket 27 comes into contact with the mounting bracket 5b for the mounting bracket 5b against the first flange 17 of the alternator 4. The nut 29 and the sleeve 27 thus form the jaws of the clamping device.
La figure 4 présente maintenant un troisième mode de réalisation des moyens de serrage communs à l'alternateur 4, au point d'attache 16b du pivot 15 du tendeur de courroie. Ce troisième mode de réalisation diffère du deuxième en ce que l'écrou 29 est solidaire de l'entretoise 20. Au montage, la tige filetée 26' est vissée dans l'écrou 29 à travers l'entretoise 20, la première bride 17 de l'alternateur, le support 5b. Le vissage s'effectue au moyen de l'embout 28 et de l'outil de vissage. La tige 26' filetée vient ensuite se visser dans la douille 27 clavetée ou d'un autre système bloquant la rotation selon l'axe de la vis disposée dans l'orifice 19b de la seconde bride 18, ce qui serre l'entretoise 20 contre la première bride 17 de l'alternateur 4 tandis que la douille 27 vient au contact du support 5b de fixation pour le support 5b de fixation contre la première bride 17 de l'alternateur 4. L'écrou 29 et la douille 27 forment ainsi les mors du dispositif de serrage. Figure 4 now shows a third embodiment of the clamping means common to the alternator 4 at the point of attachment 16b of the pivot 15 of the belt tensioner. This third embodiment differs from the second in that the nut 29 is integral with the spacer 20. At the mounting, the threaded rod 26 'is screwed into the nut 29 through the spacer 20, the first flange 17 of the alternator, the support 5b. The screwing is done by means of the end piece 28 and the screwing tool. The threaded rod 26 'is then screwed into the keyed socket 27 or another system blocking the rotation along the axis of the screw disposed in the orifice 19b of the second flange 18, which clamps the spacer 20 against the first flange 17 of the alternator 4 while the sleeve 27 comes into contact with the support 5b for fixing the support 5b against the first flange 17 of the alternator 4. The nut 29 and the sleeve 27 thus form the jaws of the clamping device.
L'invention ne se limite pas aux modes de réalisation décrits. En variante les moyens de serrage décrits conviennent également comme moyens de serrage communs à l'alternateur 4, au point d'attache 16a du ressort 14 de compression et de son support 5a de fixation. The invention is not limited to the embodiments described. As a variant, the clamping means described are also suitable as clamping means common to the alternator 4, at the point of attachment 16a of the compression spring 14 and its support 5a for fixing.
Dans une autre variante, l'orifice 23 du support de fixation, côté pivot ou côté ressort peut être ouvert longitudinalement de sorte à former un U, ce qui permet de mettre en place la tige dans le support de fixation, même lorsque la tige est déjà en partie vissée à la douille 27. In another variant, the orifice 23 of the attachment support, pivot side or spring side can be opened longitudinally so as to form a U, which allows to set up the rod in the mounting bracket, even when the rod is already partially screwed to the socket 27.
Dans une autre variante, la douille clavetée peut être remplacée par un écrou coulissant dans la bride 18, la forme intérieure de l'orifice 19b étant dans ce cas adapté à la forme extérieure de l'écrou. In another variant, the keyed sleeve can be replaced by a sliding nut in the flange 18, the inner shape of the orifice 19b being in this case adapted to the outer shape of the nut.

Claims

REVENDICATIONS
1. Ensemble comprenant : 1. Set comprising:
-un accessoire (4) périphérique à un bloc moteur d'un moteur à combustion interne destiné à être entraîné par une courroie (6) d'entraînement,  an accessory (4) peripheral to an engine block of an internal combustion engine intended to be driven by a drive belt (6),
-un tendeur (1 1 ) destiné à tendre la courroie (6) d'entraînement,  a tensioner (1 1) intended to tension the drive belt (6),
-un support (5b) de fixation de l'accessoire disposé sur le bloc moteur,  a support (5b) for fixing the accessory disposed on the engine block,
dans lequel, le tendeur (1 1 ) de courroie (6) et l'accessoire (4) comprennent chacun un point d'attache (16b),  wherein, the belt tensioner (1 1) and the accessory (4) each comprise an attachment point (16b),
caractérisé en ce qu'il comprend des moyens de serrage communs entre le support de fixation (5b) de l'accessoire, le point d'attache (16b) du tendeur (1 1 ) et celui de l'accessoire (4).  characterized in that it comprises common clamping means between the attachment bracket (5b) of the accessory, the attachment point (16b) of the tensioner (1 1) and that of the accessory (4).
2. Ensemble selon la revendication 1 , caractérisé en ce que l'accessoire est un alternateur (4). 2. An assembly according to claim 1, characterized in that the accessory is an alternator (4).
3. Ensemble selon la revendication 1 ou la revendication 2, caractérisé en ce qu'il comprend un autre support de fixation (5a) et en ce que le tendeur (1 1 ) de courroie comprend : 3. An assembly according to claim 1 or claim 2, characterized in that it comprises another fixing support (5a) and in that the belt tensioner (1 1) comprises:
- un pivot (15) comportant le point d'attache (16b),  a pivot (15) comprising the point of attachment (16b),
- un ressort (14) de compression comprenant à son extrémité un autre point d'attache (16a),  a compression spring (14) comprising at its end another attachment point (16a),
cet ensemble comprenant des moyens de serrage communs pour le point d'attache (16a) du ressort et/ou des moyens de serrage communs pour le point d'attache (16b) du pivot (15).  this assembly comprising common clamping means for the point of attachment (16a) of the spring and / or common clamping means for the point of attachment (16b) of the pivot (15).
4. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce que le point d'attache (16b) du tendeur (1 1 ) comprend une entretoise (20) comportant un orifice (21 ) débouchant, le support de fixation (5b) de l'accessoire comprend un orifice (23) débouchant et le point d'attache de l'accessoire comprend une bride (17) avec un orifice (19a) débouchant, et en ce que les moyens de serrage comprennent une tige filetée (26, 26') et deux mors (25, 27; 29, 27), la tige filetée (26, 26') traversant lesdits orifices (21 , 23, 19a) et coopérant avec les deux mors (25, 27; 29, 27) pour serrer l'entretoise (20), la bride (17) et le support de fixation (5b) de l'accessoire entre eux. 4. An assembly according to any one of the preceding claims, characterized in that the point of attachment (16b) of the tensioner (1 1) comprises a spacer (20) having a hole (21) opening, the mounting bracket (5b ) of the accessory comprises an opening (23) opening and the point of attachment of the accessory comprises a flange (17) with a hole (19a) opening, and in that the clamping means comprise a threaded rod (26). , 26 ') and two jaws (25, 27; 29, 27), the threaded rod (26, 26') passing through said orifices (21, 23, 19a) and cooperating with the two jaws (25, 27; 29, 27) ) to tighten the spacer (20), the flange (17) and the attachment support (5b) of the accessory between them.
5. Ensemble selon la revendication 4, caractérisé en ce que l'accessoire comprend une seconde bride (18) avec un orifice (19b) dans lequel est disposé le premier mors. 5. The assembly of claim 4, characterized in that the accessory comprises a second flange (18) with an orifice (19b) in which is disposed the first jaw.
6. Ensemble selon la revendication 5, caractérisé en ce que le premier mors est formé par une douille (27) clavetée coulissante dans laquelle vient se visser la tige filetée (26,26'). 6. The assembly of claim 5, characterized in that the first jaw is formed by a sleeve (27) slidably keyed in which is screwed in the threaded rod (26,26 ').
7. Ensemble selon la revendication 5 ou la revendication 6, caractérisé en ce que la tige filetée (26) et le second mors est formée par une vis (24). 7. An assembly according to claim 5 or claim 6, characterized in that the threaded rod (26) and the second jaw is formed by a screw (24).
8. Ensemble selon la revendication 5 ou la revendication 6, caractérisé en ce que la tige filetée (26') comprend un embout (28) adapté à recevoir un outil de vissage, et en ce que le second mors est formé par un écrou (29) se vissant sur la tige filetée (26'). 8. An assembly according to claim 5 or claim 6, characterized in that the threaded rod (26 ') comprises a tip (28) adapted to receive a screwdriver, and in that the second jaw is formed by a nut ( 29) screwing onto the threaded rod (26 ').
9. Ensemble selon la revendication 8, caractérisé en ce que l'écrou (29) est solidaire de l'entretoise (20). 9. An assembly according to claim 8, characterized in that the nut (29) is integral with the spacer (20).
10. Ensemble selon l'une quelconque des revendications 4 à 9, l'orifice (23) du support de fixation (5b) de l'accessoire est ouvert longitudinalement en U. 10. Assembly according to any one of claims 4 to 9, the orifice (23) of the attachment support (5b) of the accessory is open longitudinally U.
EP16744803.4A 2015-08-03 2016-07-05 Assembly comprising an engine accessory, a belt tightener, a securing support and clamping means common to all Withdrawn EP3332150A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1557450A FR3039874B1 (en) 2015-08-03 2015-08-03 ASSEMBLY COMPRISING AN ENGINE ACCESSORY, A BELT TENSIONER, A FIXING BRACKET AND COMMON CLAMPING MEANS BETWEEN THEM
PCT/FR2016/051694 WO2017021599A1 (en) 2015-08-03 2016-07-05 Assembly comprising an engine accessory, a belt tightener, a securing support and clamping means common to all

Publications (1)

Publication Number Publication Date
EP3332150A1 true EP3332150A1 (en) 2018-06-13

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EP16744803.4A Withdrawn EP3332150A1 (en) 2015-08-03 2016-07-05 Assembly comprising an engine accessory, a belt tightener, a securing support and clamping means common to all

Country Status (4)

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EP (1) EP3332150A1 (en)
CN (1) CN108496027A (en)
FR (1) FR3039874B1 (en)
WO (1) WO2017021599A1 (en)

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Publication number Priority date Publication date Assignee Title
JP7491710B2 (en) * 2020-03-23 2024-05-28 ヤンマーパワーテクノロジー株式会社 Auto tensioner mounting structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04166620A (en) * 1990-10-31 1992-06-12 Yamaha Motor Co Ltd Alternator driving device for engine
US6360712B1 (en) * 2000-05-01 2002-03-26 Daimlerchrysler Corporation Self-aligning and locking mount for engine accessory
CN1278060C (en) * 2000-10-03 2006-10-04 盖茨公司 Accessory and motor/generator belt drive tensioner
DE102004028762A1 (en) * 2004-06-16 2006-01-19 Ina-Schaeffler Kg Arrangement of a deflection roller in a belt drive
JP2007032307A (en) * 2005-07-22 2007-02-08 Aichi Mach Ind Co Ltd Internal combustion engine
US8137222B2 (en) * 2007-04-04 2012-03-20 GM Global Technology Operations LLC Accessory drive tensioner system
FR2918127B1 (en) * 2007-06-29 2011-03-18 Valeo Equip Electr Moteur DEVICE FOR STARTING A THERMAL MOTOR, IN PARTICULAR A MOTOR VEHICLE.

Also Published As

Publication number Publication date
WO2017021599A1 (en) 2017-02-09
FR3039874B1 (en) 2017-08-25
CN108496027A (en) 2018-09-04
FR3039874A1 (en) 2017-02-10

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