EP3105466A2 - Overrunning clutch cage and spring thereof having arms remote from the cage in the compressed position - Google Patents

Overrunning clutch cage and spring thereof having arms remote from the cage in the compressed position

Info

Publication number
EP3105466A2
EP3105466A2 EP15706906.3A EP15706906A EP3105466A2 EP 3105466 A2 EP3105466 A2 EP 3105466A2 EP 15706906 A EP15706906 A EP 15706906A EP 3105466 A2 EP3105466 A2 EP 3105466A2
Authority
EP
European Patent Office
Prior art keywords
spring
ring
projection
face
assembly according
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Withdrawn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
EP15706906.3A
Other languages
German (de)
French (fr)
Inventor
Michel PHUNG
Philippe Chiozzi
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.)
Valeo Equipements Electriques Moteur SAS
Original Assignee
Valeo Equipements Electriques Moteur SAS
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 Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP3105466A2 publication Critical patent/EP3105466A2/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Withdrawn legal-status Critical Current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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
    • F16D41/067—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D2041/0605—Spring details

Definitions

  • the present invention relates to a freewheel clutch arranged between a pulley and an input shaft of an electric machine of a motor vehicle, or between a crankshaft and a driven pulley of the reciprocating internal combustion engine.
  • These freewheels are known to reduce the speed variations produced by the cyclic irregularities of the reciprocating internal combustion engine.
  • the freewheel clutch comprises an outer ring 1 comprising an axis of rotation, and an inner ring 2 rotatable relative to the outer ring 1 surrounded by the ring external 1.
  • the outer ring 1 and the inner ring 2 are free to rotate relative to each other through the bearing 5, in this case rollers 6.
  • the outer ring 1 and the inner ring 2 comprise each of them has a respective internal and external locking surface 13.
  • the plastic cage 4 comprises two rings 15 connected to one another via a plurality of walls 16. Housings 17 are formed in the cage 4 between these walls 16 and these rings 15. A grooving element in this case a roller 3 is mounted in each housing 17.
  • the inner ring 2 comprises a ramp 13 forming a locking surface, on which the roller 3 turns and comes between the locking surface of the inner ring and the inner locking surface 14 of the outer ring 1.
  • Compression springs 18 are housed in each of the housings 17 between the rollers 3 and the wall 16. The springs are compressed by one of these ends in contact with one of the walls 16 and two other ends of two spring hard arm 18.
  • the walls 16 comprise a bearing surface 161 on which in the event of maximum compression of the spring the arms come into full contact.
  • FIG. 2 represents a portion of the cage 4, the inner ring 2, the roll 3 and the spring 18.
  • FIG. 3 represents a section II of FIG. 1. In these two figures it can be seen that the spring has come from of the cage 4. Such a configuration is very difficult to achieve and the spring materials are identical to that of the plastic cage. In addition, such a spring has compression and shape memory properties directly linked to the cage. This results in a choice of cage material related to the property of the spring.
  • FIG. 4 represents this embodiment.
  • the spring 6 is shaped arc and comprises two arms 11 bearing against the roller 3 and a portion 611 bearing against the groove surface.
  • a foreign body such as a dust or a chip may come into the housing and be positioned between the arms and the bearing surface 161 of the wall 16, close to the portion in contact with the wall 16.
  • the foreign body may be an impurity in the lubricant of the freewheel or an aggregate of fat that forms when it is cold.
  • This change in characteristic can break the spring 6 or the spring 18 due to the deformation that this foreign body provides when it is compressed between one of the spring arms and the locking surface, when the spring is compressed (in which case the pulley is freewheeling).
  • the housing is waterproof, during manufacture, a foreign body can slip and be placed at a time behind the spring arm.
  • Second potential failure is in operating mode the spring is unbalanced and it can in this case push the roll across. Because of this, operation in blocked mode is not optimum.
  • the object of the present invention is to provide a spring cage assembly that prevents a foreign body can break the spring or it is unbalanced.
  • the invention makes it possible to propose a solution making it possible to avoid or reduce the risks that a foreign body may break the spring.
  • the present invention provides an assembly for a freewheel clutch comprising a freewheel cage of an automobile pulley, and a spring, the wheel cage and comprising:
  • each of the walls comprising a bearing face and a free face
  • each of the housing being delimited by an inner face of the first ring, an internal face of the second ring, the bearing face of one of the walls and a free face. from a neighboring wall,
  • each of the leaf springs being mounted in one of the housings, characterized in that at least one bearing face comprises a projection extending towards the free face and in that at least one leaf spring comprises a portion bearing against the projection of the bearing face, and whatever is:
  • the portion of the spring bearing against the projection is flat and in that the projection is flat and in that the flat portion of the spring covers at least the entire bearing surface of the projection
  • the surface of the projection against which the spring is supported comprises a portion over the entire length of the surface of the projection and in that this portion is covered by the spring in the rest state.
  • the invention solves the problem of breakage, because the projection allows to accommodate the foreign body between the spring and a locking surface of the support surface without the spring is compressed against the foreign body when the spring is compressed towards the support surface.
  • the invention comprises one or more of the following features which may be combined with the invention above alone or in combination with the other features:
  • the portion in contact with the projection has a complementary shape with at least the contact portion of the surface of the scar. This allows you to nest with each other.
  • the entire bearing surface of the projection may have a shape complementary to the portion of the spring in contact with the projection. This makes it easier to position the spring.
  • This embodiment is the simplest to achieve.
  • the flat portion completely covers the projection. This makes it possible to be certain that dirt will not be positioned between the projection and the flat portion.
  • the flat portion extends beyond the projection. This allows the spring to deform without the protrusion does change the behavior of other portions of the springs. In addition it is easier to manufacture.
  • the spring comprises two arms extending on either side of the portion bearing against the projection.
  • Each arm includes a flat portion. This allows the deformation of the arms to be controlled.
  • Each arm comprises a second flat portion. This allows the deformation of the arms to be in two segments and therefore two different levels.
  • Each arm is arc-shaped. This makes it possible to increase the elastic limit of the spring.
  • the projection is a flat radial and axial surface. Radial and axial means that the surface extends in a plane comprising the axis of rotation.
  • the assembly may further comprise rollers, each of the rollers being housed in one of the respective housings between the spring and the free face.
  • the roller is in contact against the spring arms.
  • the wall between the two rings comprises an opening opening on the support surface and the free face for passing the fat from one housing to another.
  • the invention also relates to a freewheel comprising a previously described assembly with or without one of the preceding claims, the free wheel further comprising an inner ring and an outer ring closing the housings and in that the inner ring comprises an outer surface comprising a ramp.
  • the invention also relates to another freewheel comprising an assembly described previously with or without one of the preceding claims, the free wheel further comprising an inner ring and an outer ring closing the housings and in that the outer ring comprises a surface internal including a ramp.
  • the invention also relates to a pulley comprising one of the two freewheels described above and further comprising an outer surface integral in rotation with the outer ring, the outer surface being adapted to be driven by a belt.
  • the invention also relates to an electric machine of a motor vehicle, in particular an alternator or alternator machine, comprising an output shaft and a pulley described above, the output shaft being mounted integral in rotation with the inner ring.
  • Figure 1 shows a section of a freewheel assembly according to a prior art.
  • Figure 2 shows a perspective view of a portion of the assembly of Figure 1 devoid of the outer ring.
  • Figure 3 shows a partial section II of Figure 1.
  • FIG. 4 shows another embodiment of the prior art.
  • FIG. 5 shows an embodiment of the invention.
  • Figure 6 shows schematically an embodiment of the invention.
  • Figure 7 shows a portion of the whole of a perspective view of the embodiment of the invention.
  • the freewheel clutch comprises an outer ring 1 not shown, for example identical to the prior art shown in Figure 1.
  • the freewheel clutch further comprises an inner ring 2 rotatable by relative to the outer ring 1 surrounded by the outer ring 1.
  • Figure 5 shows the freewheel clutch without the outer ring.
  • the outer ring 1 and the inner ring 2 are free to rotate relative to each other by means of bearing 5, not shown, in this case with rollers 6 as in the prior art shown in FIG.
  • the outer ring 1 and the inner ring 2 each comprise an inner locking surface 14 respectively not shown, and external 13. Between these two rings is mounted a cage 4.
  • the cage is plastic.
  • the plastic cage 4 comprises a first ring 15 and a second ring 15 offset from one another axially.
  • Each of the two rings have the same axis of rotation.
  • the two rings 15 are connected to each other through several walls 16.
  • the walls 16 connect the first ring 15 to the second ring 15.
  • the walls 16 and the rings 15 are monobloc , especially ground.
  • Each of the walls 16 comprises a bearing face 161 and a free face 162.
  • the wall 16 comprises an opening opening on the support face and the free face to pass the grease of a housing to another.
  • Housings 17 are formed in the cage 4 between these walls 16 and these rings 15. Each of the housings 17 is delimited by an internal face of the first ring, an inner face of the second ring, the bearing face of one of the walls and a free face of a neighboring wall. In this case, each of the housings 17 is delimited by the internal locking surface 14, the external locking surface 13, the bearing face 161 of a wall, the free face 162 of the following wall.
  • a groove element in this case a roller 3 is mounted in each housing 17.
  • the inner ring 2 comprises a ramp 13 forming the locking surface 13, on which the roller 3 rotates and is wedged between the locking surface 13 of the inner ring and the inner locking surface 14 of the outer ring
  • the ramp is formed on the inner locking surface of the outer ring.
  • the freewheel clutch further comprises compression springs 6 housed in each of the housings 17.
  • Each of the springs is mounted between one of the rollers 3 and one of the bearing surfaces 161 of the walls 16.
  • the walls 16 comprise a bearing surface 161.
  • This bearing surface 161 further comprises a projection 1610.
  • Each projection 1610 extends towards the free face of the wall 16 defining the same housing. In other words, each projection extends towards the roll.
  • Each of the springs is blade and comprises a portion bearing against the projection of the bearing face.
  • the spring 6 is removable.
  • FIG. 5 shows an embodiment in which the spring 6 is in the form of an arc.
  • the spring 6 comprises two curved arms 11, each arm comprises a portion bearing against the roller 3 and a portion 611 between these two arms 11 bears against the projection 1610 of the locking surface 611.
  • Each spring 6 is compressed by a portion 611 in contact with the projection 1610 and two other ends of the two arms 11 of the spring 6.
  • the projection 1610 comprises a surface in contact with the portion 611, this surface in contact has a surface of complementary shape with that of the portion 611. In this case, the projection 1610 has a concave surface in contact with the convex surface of the spring 6 arc-shaped.
  • the surface (1610a) of the projection (1610) against which the spring is supported comprises a contact portion over the entire length of the surface of the projection and that portion is covered by the spring at the rest state.
  • state of rest is meant the state of the spring when the pulley does not turn at the beginning of life of the pulley (new state).
  • the portion 611 between the two arms is not shown.
  • the projection 1610 includes a planar surface in contact with the planar portion 611.
  • FIG. 6 represents a section, along a plane parallel to the axis perpendicular to a plane comprising the axis of rotation, of the wall 16 and of the spring 6 'according to another embodiment.
  • the spring 6 'of this embodiment is no longer arc-shaped but includes planar portions.
  • the portion 611 'in contact with the projection 1610' is flat and the projection 1610 'comprises a surface complementary plane.
  • the portion 61 protrudes axially on either side of the projection 1610 '.
  • Portion 61 ⁇ therefore comprises a length measured axially longer than the axial length of projection 1610 '.
  • the spring arms each comprise two flat portions 11 "and 11 ', a first planar portion 11" of each arm extending from the portion 611'.
  • An angle B between the portion 611 'and the portion 11' is shown in Figure 6. In this case this angle B is equal to 10 ° but could be between 5 and 20 °. The angle B is measured between the surface of the portion 611 'in contact with the projection and the surface facing the wall 16 of the portion 11', measured from the portion 11 'to the portion 611 minus 180 °.
  • Another angle a is shown in the figure corresponding to the angle between the portion 11 'and the portion 11 "of each arm This angle is equal in this case to 159 ° but could be between 145 ° and 175 °.
  • FIG. 7 represents another embodiment, in a perspective view, of a portion of the two rings 15 according to another embodiment and of a spring 6 "according to another embodiment and a wall 16.
  • the spring 6 “comprises for each arm three flat portions, 11 ', 11" and 11 ".This makes it possible to deform at several points and thus to divide the stresses of the spring into three parts.
  • each ring 15 comprises on their outer radial face, grooves 151 vis-à-vis the walls 16.
  • a groove 151 is visible entirely on one of the rings 15 and another is partially visible in Figure 7.
  • each spring 6 "comprises a portion 6 which extends on an outer face of the wall 16 to these grooves 151 and comprises a second portion 62 'which enters these grooves 151. This allows The other two embodiments of FIGS. 5 and 6 preferably have this same type of hooking of the spring 6, 6 '.
  • the projection may extend towards the free surface of the neighboring wall, for example over 0.6 mm. According to another embodiment, it extends between 0.2 and 1.5mm.

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

Abstract

The invention relates to an overrunning clutch comprising a free wheel cage of a motor vehicle pulley, and a spring, the wheel cage comprising: - a first ring and a second ring axially offset with respect to each other, the rings each having the same axis of rotation, - walls linking the first ring to the second ring, each ring comprising a bearing face and a free face, such that the walls and rings together form recesses between them, each of the recesses being delimited by an internal face of the first ring, an internal face of the second ring, the bearing face of one of the walls and the free face of a neighbouring wall, - leaf springs, each of the leaf springs being mounted in one of the recesses, such that at least one bearing face comprises a protrusion extending towards the free face and such that at least one leaf spring comprises a portion bearing against the protrusion of the bearing face.

Description

CAGE D'EMBRAYAGE A ROUE LIBRE ET SON RESSORT AYANT DES BRAS DISTANTS DE LA CAGE EN POSITION COMPRESSEE  FREE-WHEEL CLUTCH CAGE AND SPRING HAVING REMOTE CAGE ARMS IN COMPRESSED POSITION
La présente invention concerne un embrayage à roue libre agencé entre une poulie et un arbre d'entrée d'une machine électrique de véhicule automobile, ou entre un vilebrequin et une poulie menée du moteur alternatif à combustion interne. Ces roues libres sont connues pour réduire les variations de vitesses produites par les irrégularités cycliques du moteur alternatif à combustion interne. The present invention relates to a freewheel clutch arranged between a pulley and an input shaft of an electric machine of a motor vehicle, or between a crankshaft and a driven pulley of the reciprocating internal combustion engine. These freewheels are known to reduce the speed variations produced by the cyclic irregularities of the reciprocating internal combustion engine.
II est connu un embrayage à roue libre représentée à la figure 1. L'embrayage à roue libre comprend une bague externe 1 comprenant un axe de rotation, et une bague interne 2 mobile en rotation par rapport à la bague externe 1 entourée par la bague externe 1. La bague externe 1 et la bague interne 2 sont libre en rotation l'une par rapport à l'autre par le biais de roulement 5, en l'occurrence à rouleaux 6. La bague externe 1 et la bague interne 2 comprennent chacune une surface de blocage respectivement interne 14 et externe 13. Entre ces deux bagues est montée une cage en plastique 4. La cage en plastique 4 comprend deux bagues 15 connectées l'une à l'autre par le biais de plusieurs parois 16. Des logements 17 sont formés dans la cage 4 entre ces parois 16 et ces bagues 15. Un élément de bocage en l'occurrence un rouleau 3 est monté dans chaque logement 17. La bague interne 2 comprend une rampe 13 formant une surface de blocage, sur lequel le rouleau 3 tourne et vient se coincer entre la surface de blocage de la bague interne et la surface interne de blocage 14 de la bague externe 1. Des ressorts de compression 18 sont logés dans chacun des logements 17 entre les rouleaux 3 et la paroi 16. Les ressorts sont comprimés par une de ces extrémités en contact avec une des parois 16 et par deux autres extrémités de deux bras dur ressort 18. Les parois 16 comprennent une surface d'appui 161 sur lequel en cas de compression maximum du ressort les bras viennent entièrement en contact. Une figure 2 représente une portion de la cage 4, la bague interne 2, le rouleau 3 et le ressort 18. La figure 3 représente une coupe II de la figure 1. Sur ces deux figures on peut voir que le ressort est venu de matière de la cage 4. Une telle configuration est très difficile à réaliser et les matières du ressort sont identiques à celle de la cage en plastique. De plus un tel ressort a des propriétés de compression et mémoire de forme directement lié à la cage. Ce qui entraîne un choix de matière de la cage lié à la propriété du ressort.  It is known a freewheel clutch shown in Figure 1. The freewheel clutch comprises an outer ring 1 comprising an axis of rotation, and an inner ring 2 rotatable relative to the outer ring 1 surrounded by the ring external 1. The outer ring 1 and the inner ring 2 are free to rotate relative to each other through the bearing 5, in this case rollers 6. The outer ring 1 and the inner ring 2 comprise each of them has a respective internal and external locking surface 13. Between these two rings is mounted a plastic cage 4. The plastic cage 4 comprises two rings 15 connected to one another via a plurality of walls 16. housings 17 are formed in the cage 4 between these walls 16 and these rings 15. A grooving element in this case a roller 3 is mounted in each housing 17. The inner ring 2 comprises a ramp 13 forming a locking surface, on which the roller 3 turns and comes between the locking surface of the inner ring and the inner locking surface 14 of the outer ring 1. Compression springs 18 are housed in each of the housings 17 between the rollers 3 and the wall 16. The springs are compressed by one of these ends in contact with one of the walls 16 and two other ends of two spring hard arm 18. The walls 16 comprise a bearing surface 161 on which in the event of maximum compression of the spring the arms come into full contact. FIG. 2 represents a portion of the cage 4, the inner ring 2, the roll 3 and the spring 18. FIG. 3 represents a section II of FIG. 1. In these two figures it can be seen that the spring has come from of the cage 4. Such a configuration is very difficult to achieve and the spring materials are identical to that of the plastic cage. In addition, such a spring has compression and shape memory properties directly linked to the cage. This results in a choice of cage material related to the property of the spring.
Une autre solution connue est de disposer un ressort amovible 6 entre la paroi 16 et le rouleau 3. La figure 4 représente ce mode de réalisation. Le ressort 6 est en forme d'arc et comprend deux bras 11 en appui contre le rouleau 3 et une portion 611 en appui contre la surface de bocage. Another known solution is to have a removable spring 6 between the wall 16 and the roller 3. FIG. 4 represents this embodiment. The spring 6 is shaped arc and comprises two arms 11 bearing against the roller 3 and a portion 611 bearing against the groove surface.
Dans ces deux modes de réalisations, un corps étranger tel qu'une poussière ou un copeau peut venir dans le logement et se positionner entre les bras et la surface d'appui 161 de la paroi 16, proche de la portion en contact avec la paroi 16. Par exemple, le corps étranger peut être une impureté dans le lubrifiant de la roue libre ou encore un agrégat de graisse qui se forme lorsqu'il fait froid. Ce changement de caractéristique peut casser le ressort 6 ou le ressort 18 du fait de la déformation que procure ce corps étranger lorsqu'il est comprimer entre un des bras du ressort et la surface de blocage, lorsque le ressort est comprimer (cas dans lequel la poulie est en roue libre). Même si le logement est étanche, lors de la fabrication, un corps étranger peut se glisser et se placer à un moment derrière le bras du ressort. In these two embodiments, a foreign body such as a dust or a chip may come into the housing and be positioned between the arms and the bearing surface 161 of the wall 16, close to the portion in contact with the wall 16. For example, the foreign body may be an impurity in the lubricant of the freewheel or an aggregate of fat that forms when it is cold. This change in characteristic can break the spring 6 or the spring 18 due to the deformation that this foreign body provides when it is compressed between one of the spring arms and the locking surface, when the spring is compressed (in which case the pulley is freewheeling). Even if the housing is waterproof, during manufacture, a foreign body can slip and be placed at a time behind the spring arm.
Deuxième défaillance potentielle est en mode de fonctionnement le ressort est déséquilibré et il peut dans ce cas pousser le rouleau de travers. De ce fait, le fonctionnement en mode bloqué n'est pas optimum.  Second potential failure is in operating mode the spring is unbalanced and it can in this case push the roll across. Because of this, operation in blocked mode is not optimum.
Le but de la présente invention est de fournir un ensemble cage ressort qui permet d'éviter qu'un corps étranger puisse casser le ressort ou encore qu'il se déséquilibre.  The object of the present invention is to provide a spring cage assembly that prevents a foreign body can break the spring or it is unbalanced.
L'invention permet de proposer une solution permettant d'éviter ou diminuer les risques qu'un corps étranger puisse casser le ressort. The invention makes it possible to propose a solution making it possible to avoid or reduce the risks that a foreign body may break the spring.
A cette fin, la présente invention propose un ensemble pour un embrayage à roue libre comprenant une cage à roue libre d'une poulie d'automobile, et un ressort, la cage à roue et comprenant : To this end, the present invention provides an assembly for a freewheel clutch comprising a freewheel cage of an automobile pulley, and a spring, the wheel cage and comprising:
une première bague et une seconde bague décalée l'une de l'autre axialement, les bagues ayant chacune le même axe de rotation,  a first ring and a second ring offset from one another axially, the rings each having the same axis of rotation,
des parois reliant la première bague à la seconde bague, chacune des parois comprenant une face d' appui et une face libre,  walls connecting the first ring to the second ring, each of the walls comprising a bearing face and a free face,
dans lequel les parois forment avec les bagues, entre eux des logements, chacun des logements étant délimité par une face interne de la première bague, une face interne de la deuxième bague, la face d'appui d'une des parois et une face libre d'une paroi voisine,  in which the walls form with the rings, between them housing, each of the housing being delimited by an inner face of the first ring, an internal face of the second ring, the bearing face of one of the walls and a free face. from a neighboring wall,
des ressorts à lame, chacun des ressorts à lame étant monté dans un des logements, caractérisé en ce qu'au moins une face d'appui comprend une saillie s'étendant vers la face libre et en ce qu'au moins un ressort à lame comprend une portion en appui contre la saillie de la face d'appui, et en ce que soit : leaf springs, each of the leaf springs being mounted in one of the housings, characterized in that at least one bearing face comprises a projection extending towards the free face and in that at least one leaf spring comprises a portion bearing against the projection of the bearing face, and whatever is:
la portion du ressort en appui contre la saillie est plane et en ce que la saillie est plane et en ce que la portion plane du ressort recouvre au moins entièrement la face d' appuie de la saillie,  the portion of the spring bearing against the projection is flat and in that the projection is flat and in that the flat portion of the spring covers at least the entire bearing surface of the projection,
soit  is
la surface de la saillie contre laquelle le ressort est en appuie comprend une portion sur toute la longueur de la surface de la saillie et en ce que cette portion est recouverte par le ressort à l'état repos.  the surface of the projection against which the spring is supported comprises a portion over the entire length of the surface of the projection and in that this portion is covered by the spring in the rest state.
En effet, l'invention résout le problème de casse, car la saillie permet de loger le corps étranger entre le ressort et une surface de blocage de la face d' appuie sans que le ressort se comprime contre le corps étranger lorsque le ressort se comprime en direction de la surface d' appuie. Indeed, the invention solves the problem of breakage, because the projection allows to accommodate the foreign body between the spring and a locking surface of the support surface without the spring is compressed against the foreign body when the spring is compressed towards the support surface.
Suivant des modes de réalisation préférés, l'invention comprend une ou plusieurs des caractéristiques suivantes qui peuvent se combiner avec l'invention ci- dessus seule ou en combinaisons avec les autres caractéristiques : According to preferred embodiments, the invention comprises one or more of the following features which may be combined with the invention above alone or in combination with the other features:
La portion en contact avec la saillie a une forme complémentaire avec au moins avec la portion de contact de la surface de la saille. Cela permet de s'emboîter l'un avec l'autre.  The portion in contact with the projection has a complementary shape with at least the contact portion of the surface of the scar. This allows you to nest with each other.
De préférence, toute la face d' appuie de la saillie peut avoir une forme complémentaire avec la portion du ressort en contact avec la saillie. Cela permet de disposer le ressort plus facilement.  Preferably, the entire bearing surface of the projection may have a shape complementary to the portion of the spring in contact with the projection. This makes it easier to position the spring.
Cela permet que la portion du ressort en contact avec la saillie ne se déforme pas.  This allows the portion of the spring in contact with the projection does not deform.
La portion du ressort en appui contre la saillie et la saillie sont planes.  The portion of the spring bearing against the projection and the projection are flat.
Cet exemple de réalisation est la plus simple à réaliser.  This embodiment is the simplest to achieve.
La portion plane recouvre entièrement la saillie. Cela permet d'être certain qu'une saleté ne se positionnera pas entre la saillie et la portion plane.  The flat portion completely covers the projection. This makes it possible to be certain that dirt will not be positioned between the projection and the flat portion.
La portion plane s'étend au-delà de la saillie. Cela permet de laisser le ressort se déformer sans que la saillie ne vienne modifier le comportement des autres portions des ressorts. De plus c'est plus simple à fabriquer.  The flat portion extends beyond the projection. This allows the spring to deform without the protrusion does change the behavior of other portions of the springs. In addition it is easier to manufacture.
Le ressort comprend deux bras s'étendant de part et d'autres de la portion en appui contre la saillie. Chaque bras comprend une portion plane. Cela permet que la déformation des bras soit maîtrisée. The spring comprises two arms extending on either side of the portion bearing against the projection. Each arm includes a flat portion. This allows the deformation of the arms to be controlled.
Chaque bras comprend une seconde portion plane. Cela permet que la déformation des bras se fasse en deux segments et donc deux paliers différents.  Each arm comprises a second flat portion. This allows the deformation of the arms to be in two segments and therefore two different levels.
Chaque bras est en forme d'arc. Cela permet d'augmenter la limite élastique du ressort.  Each arm is arc-shaped. This makes it possible to increase the elastic limit of the spring.
La saillie est une surface plane radiale et axiale. Par radiale et axiale on entend que la surface s'étend dans un plan comprenant l'axe de rotation.  The projection is a flat radial and axial surface. Radial and axial means that the surface extends in a plane comprising the axis of rotation.
L'ensemble peut comprendre en outre des rouleaux, chacun des rouleaux étant logé dans un des logements respectifs entre le ressort et la face libre.  The assembly may further comprise rollers, each of the rollers being housed in one of the respective housings between the spring and the free face.
Le rouleau est en contact contre les bras du ressort.  The roller is in contact against the spring arms.
Selon un autre mode de réalisation, la paroi entre les deux bagues comprend une ouverture débouchant sur la face d' appuie et la face libre permettant de passer la graisse d'un logement à un autre.  According to another embodiment, the wall between the two rings comprises an opening opening on the support surface and the free face for passing the fat from one housing to another.
L'invention concerne aussi une roue libre comprenant un ensemble décrit précédemment avec ou sans l'une des revendications précédentes, la roue libre comprenant en outre une bague interne et une bague externe fermant les logements et en ce que la bague interne comprend une surface externe comprenant une rampe. The invention also relates to a freewheel comprising a previously described assembly with or without one of the preceding claims, the free wheel further comprising an inner ring and an outer ring closing the housings and in that the inner ring comprises an outer surface comprising a ramp.
L'invention concerne aussi une autre roue libre comprenant un ensemble décrit précédemment avec ou sans l'une des revendications précédentes, la roue libre comprenant en outre une bague interne et une bague externe fermant les logements et en ce que la bague externe comprend une surface interne comprenant une rampe.  The invention also relates to another freewheel comprising an assembly described previously with or without one of the preceding claims, the free wheel further comprising an inner ring and an outer ring closing the housings and in that the outer ring comprises a surface internal including a ramp.
L'invention concerne aussi une poulie comprenant une des deux roues libres décrite précédemment et comprenant en outre une surface externe solidaire en rotation de la bague externe, la surface externe étant apte à être entraîner par une courroie.  The invention also relates to a pulley comprising one of the two freewheels described above and further comprising an outer surface integral in rotation with the outer ring, the outer surface being adapted to be driven by a belt.
Enfin l'invention concerne aussi une machine électrique de véhicule automobile, en particulier une machine alternateur ou alternodémarreur, comprenant un arbre de sortie et une poulie décrite précédemment, l'arbre de sortie étant monté solidaire en rotation avec la bague interne.  Finally, the invention also relates to an electric machine of a motor vehicle, in particular an alternator or alternator machine, comprising an output shaft and a pulley described above, the output shaft being mounted integral in rotation with the inner ring.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui suit d'un mode de réalisation préféré de l'invention, donnée à titre d'exemple et en référence au dessin annexé.  Other characteristics and advantages of the invention will appear on reading the following description of a preferred embodiment of the invention, given by way of example and with reference to the appended drawing.
La figure 1 représente une coupe d'un ensemble de roue libre selon un art antérieur.  Figure 1 shows a section of a freewheel assembly according to a prior art.
La figure 2 représente une vue en perspective, d'une partie de l'ensemble de la figure 1 dépourvue de la bague extérieure. La figure 3 représente une coupe partielle II de la figure 1. Figure 2 shows a perspective view of a portion of the assembly of Figure 1 devoid of the outer ring. Figure 3 shows a partial section II of Figure 1.
La figure 4 représente un autre mode de réalisation de l'art antérieur.  Figure 4 shows another embodiment of the prior art.
La figure 5 représente un mode de réalisation de l'invention.  Figure 5 shows an embodiment of the invention.
La figure 6 représente schématiquement un mode de réalisation de l'invention. La figure 7 représente une portion de l'ensemble d'une vue en perspective du mode de réalisation de l'invention.  Figure 6 shows schematically an embodiment of the invention. Figure 7 shows a portion of the whole of a perspective view of the embodiment of the invention.
Selon l'invention, l'embrayage à roue libre comprend une bague externe 1 non représentée, par exemple identique à l'art antérieur représenté sur la figure 1. L'embrayage à roue libre comprend en outre une bague interne 2 mobile en rotation par rapport à la bague externe 1 entourée par la bague externe 1. La figure 5 représente l'embrayage à roue libre dépourvue de la bague extérieure. La bague externe 1 et la bague interne 2 sont libre en rotation l'une par rapport à l'autre par le biais de roulement 5 non représenté, en l'occurrence à rouleaux 6 comme dans l'art antérieur représenté sur la figure 1. La bague externe 1 et la bague interne 2 comprennent chacune une surface de blocage respectivement interne 14 non représentée, et externe 13. Entre ces deux bagues est montée une cage 4. En l'occurrence la cage est en plastique. La cage en plastique 4 comprend une première bague 15 et une seconde bague 15 décalées l'une de l'autre axialement. Chacune des deux bagues ont le même axe de rotation. Les deux bagues 15 sont connectées l'une à l'autre par le biais de plusieurs parois 16. Autrement dit les parois 16 relient la première bague 15 à la seconde bague 15. En l'occurrence les parois 16 et les bagues 15 sont monobloc, en particulier moulu. Chacune des parois 16 comprend une face d'appui 161 et une face libre 162. Dans un mode de réalisation non représentée, la paroi 16 comprend une ouverture débouchant sur la face d' appuie et la face libre permettant de passer la graisse d'un logement à un autre.  According to the invention, the freewheel clutch comprises an outer ring 1 not shown, for example identical to the prior art shown in Figure 1. The freewheel clutch further comprises an inner ring 2 rotatable by relative to the outer ring 1 surrounded by the outer ring 1. Figure 5 shows the freewheel clutch without the outer ring. The outer ring 1 and the inner ring 2 are free to rotate relative to each other by means of bearing 5, not shown, in this case with rollers 6 as in the prior art shown in FIG. The outer ring 1 and the inner ring 2 each comprise an inner locking surface 14 respectively not shown, and external 13. Between these two rings is mounted a cage 4. In this case the cage is plastic. The plastic cage 4 comprises a first ring 15 and a second ring 15 offset from one another axially. Each of the two rings have the same axis of rotation. The two rings 15 are connected to each other through several walls 16. In other words the walls 16 connect the first ring 15 to the second ring 15. In this case the walls 16 and the rings 15 are monobloc , especially ground. Each of the walls 16 comprises a bearing face 161 and a free face 162. In an embodiment not shown, the wall 16 comprises an opening opening on the support face and the free face to pass the grease of a housing to another.
Des logements 17 sont formés dans la cage 4 entre ces parois 16 et ces bagues 15. Chacun des logements 17 est délimité par une face interne de la première bague, une face interne de la deuxième bague, la face d'appui d'une des parois et une face libre d'une paroi voisine. En l'occurrence, chacun des logements 17 est délimité par la surface de blocage interne 14, la surface de blocage externe 13, la face d'appui 161 d'une paroi, la face libre 162 de la paroi suivante. Housings 17 are formed in the cage 4 between these walls 16 and these rings 15. Each of the housings 17 is delimited by an internal face of the first ring, an inner face of the second ring, the bearing face of one of the walls and a free face of a neighboring wall. In this case, each of the housings 17 is delimited by the internal locking surface 14, the external locking surface 13, the bearing face 161 of a wall, the free face 162 of the following wall.
Un élément de bocage en l'occurrence un rouleau 3 est monté dans chaque logement 17. La bague interne 2 comprend une rampe 13 formant la surface de blocage 13, sur lequel le rouleau 3 tourne et vient se coincer entre la surface de blocage 13 de la bague interne et la surface interne de blocage 14 de la bague externe 1. Selon un autre mode de réalisation, la rampe est formée sur la surface de blocage interne de la bague externe. A groove element in this case a roller 3 is mounted in each housing 17. The inner ring 2 comprises a ramp 13 forming the locking surface 13, on which the roller 3 rotates and is wedged between the locking surface 13 of the inner ring and the inner locking surface 14 of the outer ring According to another embodiment, the ramp is formed on the inner locking surface of the outer ring.
L'embrayage à roue libre comprend en outre des ressorts de compression 6 logés dans chacun des logements 17.  The freewheel clutch further comprises compression springs 6 housed in each of the housings 17.
Chacun des ressorts est monté entre un des rouleaux 3 et une des surfaces d'appui 161 des parois 16.  Each of the springs is mounted between one of the rollers 3 and one of the bearing surfaces 161 of the walls 16.
Les parois 16 comprennent une surface d'appui 161. Cette surface d'appui 161 comprend en outre une saillie 1610. Chaque saillie 1610 s'étend vers la face libre de la paroi 16 délimitant le même logement. Autrement dit chaque saillie s'étend vers le rouleau. Chacun des ressorts est à lame et comprend une portion en appui contre la saillie de la face d'appui.  The walls 16 comprise a bearing surface 161. This bearing surface 161 further comprises a projection 1610. Each projection 1610 extends towards the free face of the wall 16 defining the same housing. In other words, each projection extends towards the roll. Each of the springs is blade and comprises a portion bearing against the projection of the bearing face.
En l'occurrence le ressort 6 est amovible.  In this case the spring 6 is removable.
Chaque ressort 6 est monté entre la surface d'appui 161 de la paroi 16 et le rouleau 3. La figure 5 représente un mode de réalisation dans lequel le ressort 6 est en forme d'arc. Le ressort 6 comprend deux bras 11 courbée, dont chaque bras comprend une partie en appui contre le rouleau 3 et une portion 611 entre ces deux bras 11 est en appui contre la saillie 1610 de la surface de blocage 611.  Each spring 6 is mounted between the bearing surface 161 of the wall 16 and the roller 3. FIG. 5 shows an embodiment in which the spring 6 is in the form of an arc. The spring 6 comprises two curved arms 11, each arm comprises a portion bearing against the roller 3 and a portion 611 between these two arms 11 bears against the projection 1610 of the locking surface 611.
Chaque ressort 6 est donc comprimé par une portion 611 en contact avec la saillie 1610 et par deux autres extrémités des deux bras 11 du ressort 6. La saillie 1610 comprend une surface en contact avec la portion 611, cette surface en contact a une surface de forme complémentaire avec celle de la portion 611. En l'occurrence, la saillie 1610 a une surface concave en contact avec la surface convexe du ressort 6 en forme d'arc.  Each spring 6 is compressed by a portion 611 in contact with the projection 1610 and two other ends of the two arms 11 of the spring 6. The projection 1610 comprises a surface in contact with the portion 611, this surface in contact has a surface of complementary shape with that of the portion 611. In this case, the projection 1610 has a concave surface in contact with the convex surface of the spring 6 arc-shaped.
De préférence, la surface (1610a) de la saillie (1610) contre lequel le ressort est en appuie comprend une portion de contact sur toute la longueur de la surface de la saillie et en ce que cette portion est recouverte par le ressort à l'état repos. Par état repos on entend l'état du ressort lorsque la poulie ne tourne pas en début de vie de la poulie (état neuf). Selon un mode de réalisation non représenté, la portion 611 entre les deux bras Preferably, the surface (1610a) of the projection (1610) against which the spring is supported comprises a contact portion over the entire length of the surface of the projection and that portion is covered by the spring at the rest state. By state of rest is meant the state of the spring when the pulley does not turn at the beginning of life of the pulley (new state). According to an embodiment not shown, the portion 611 between the two arms
11 du ressort 6 pourrait être plane. Dans ce mode de réalisation, de préférence la saillie 1610 comprend une surface plane en contact avec la portion 611 plane. 11 of the spring 6 could be flat. In this embodiment, preferably the projection 1610 includes a planar surface in contact with the planar portion 611.
Une figure 6 représente une coupe, selon un plan parallèle à l'axe perpendiculaire à un plan comprenant l'axe de rotation, de la paroi 16 et du ressort 6' selon un autre mode de réalisation. Le ressort 6' de ce mode de réalisation n'est plus en forme d'arc mais comprend des portions planes. En l'occurrence, la portion 611 ' en contact avec la saillie 1610' est plane et la saillie 1610' comprend une surface complémentaire plane. Dans ce mode de réalisation, la portion 611 ' recouvre complètement la surface plane de la saillie 1610' . En l'occurrence, la portion 61 dépasse axialement de part et d'autre la saillie 1610'. La portion 61 Γ comprend donc une longueur mesurée axialement plus longue que la longueur axiale de la saillie 1610' . FIG. 6 represents a section, along a plane parallel to the axis perpendicular to a plane comprising the axis of rotation, of the wall 16 and of the spring 6 'according to another embodiment. The spring 6 'of this embodiment is no longer arc-shaped but includes planar portions. In this case, the portion 611 'in contact with the projection 1610' is flat and the projection 1610 'comprises a surface complementary plane. In this embodiment, the portion 611 'completely covers the flat surface of the projection 1610'. In this case, the portion 61 protrudes axially on either side of the projection 1610 '. Portion 61 Γ therefore comprises a length measured axially longer than the axial length of projection 1610 '.
Dans ce mode de réalisation, les bras du ressort comprennent chacune deux portions planes 11 " et 11'. Une première portion plane 11" de chaque bras s'étend de la portion 611 ' . Un angle B entre la portion 611 ' et la portion 11 ' est représenté sur la figure 6. En l'occurrence cette angle B est égal à 10° mais pourrait être entre 5 et 20°. L'angle B est mesurée entre la surface de la portion 611 ' en contact avec la saillie et la surface en vis-à-vis de la paroi 16 de la portion 11', mesurée de la portion 11 ' vers la portion 611 moins 180°.  In this embodiment, the spring arms each comprise two flat portions 11 "and 11 ', a first planar portion 11" of each arm extending from the portion 611'. An angle B between the portion 611 'and the portion 11' is shown in Figure 6. In this case this angle B is equal to 10 ° but could be between 5 and 20 °. The angle B is measured between the surface of the portion 611 'in contact with the projection and the surface facing the wall 16 of the portion 11', measured from the portion 11 'to the portion 611 minus 180 °.
Un autre angle a est représenté sur la figure correspondant à l'angle entre la portion 11 ' et la portion 11" de chaque bras. Cette angle est égal en l'occurrence à 159° mais pourrait être entre 145° et 175°.  Another angle a is shown in the figure corresponding to the angle between the portion 11 'and the portion 11 "of each arm This angle is equal in this case to 159 ° but could be between 145 ° and 175 °.
La figure 7 représente un autre mode de réalisation, selon une vue en perspective, d'une portion des deux bagues 15 selon un autre mode de réalisation et d'un ressort 6" selon un autre mode de réalisation et d'une paroi 16.  FIG. 7 represents another embodiment, in a perspective view, of a portion of the two rings 15 according to another embodiment and of a spring 6 "according to another embodiment and a wall 16.
Le ressort 6" comprend pour chaque bras trois portions plane, 11 ',11" et 11" '. Cela permet de se déformer en plusieurs points et donc de diviser les sollicitations du ressort en trois parties.  The spring 6 "comprises for each arm three flat portions, 11 ', 11" and 11 ".This makes it possible to deform at several points and thus to divide the stresses of the spring into three parts.
Dans ce mode de réalisation, chaque bague 15 comprend sur leur face radiale externe, des rainures 151 en vis-à-vis des parois 16. En l'occurrence, une rainure 151 est visible entièrement sur une des bagues 15 et une autre est partiellement visible sur la figure 7. De plus chaque ressort 6" comprend une portion 6 qui s'étend sur une face externe de la paroi 16 jusqu'à ces rainures 151 et comprennent une seconde portion 62' qui entre dans ces rainures 151. Cela permet de maintenir le ressort. Les deux autres modes de réalisation de la figure 5 et 6 ont de préférence ce même type d'accroché du ressort 6, 6'.  In this embodiment, each ring 15 comprises on their outer radial face, grooves 151 vis-à-vis the walls 16. In this case, a groove 151 is visible entirely on one of the rings 15 and another is partially visible in Figure 7. In addition each spring 6 "comprises a portion 6 which extends on an outer face of the wall 16 to these grooves 151 and comprises a second portion 62 'which enters these grooves 151. This allows The other two embodiments of FIGS. 5 and 6 preferably have this same type of hooking of the spring 6, 6 '.
Dans les différents modes de réalisation la saillie peut s'étendre vers la surface libre de la paroi voisine par exemple sur 0.6mm. Selon d'autre mode de réalisation, elle s'étend entre 0.2 et 1.5mm.  In the various embodiments, the projection may extend towards the free surface of the neighboring wall, for example over 0.6 mm. According to another embodiment, it extends between 0.2 and 1.5mm.
Bien entendu, la présente invention n'est pas limitée aux exemples et au mode de réalisation décrits et représentés, mais elle est susceptible de nombreuses variantes accessibles à l'homme de l'art. Of course, the present invention is not limited to the examples and to the embodiment described and shown, but it is capable of numerous variants accessible to those skilled in the art.

Claims

REVENDICATIONS
Ensemble pour un embrayage à roue libre comprenant : Kit for a freewheel clutch comprising:
• une cage à roue libre d'une poulie d'automobile, et un ressort, la cage à roue comprenant : • a freewheel cage of an automobile pulley, and a spring, the wheel cage comprising:
une première bague et une seconde bague décalée l'une de l'autre axialement, les bagues ayant chacune le même axe de rotation, des parois reliant la première bague à la seconde bague, chacune des parois comprenant une face d'appui et une face libre, a first ring and a second ring offset from one another axially, the rings each having the same axis of rotation, walls connecting the first ring to the second ring, each of the walls comprising a bearing face and a face free,
dans lequel les parois forment avec les bagues, entre eux des logements, chacun des logements étant délimité par une face interne de la première bague, une face interne de la deuxième bague, la face d'appui d'une des parois et une face libre d'une paroi voisine, in which the walls form with the rings, between them housings, each of the housings being delimited by an internal face of the first ring, an internal face of the second ring, the support face of one of the walls and a free face from a neighboring wall,
• des ressorts à lame, chacun des ressorts à lame étant monté dans un des logements, • leaf springs, each of the leaf springs being mounted in one of the housings,
caractérisé en ce que au moins une face d' appuie comprend une saillie s'étendant vers la face libre et en ce que au moins un ressort à lame comprend une portion en appui contre la saillie de la face d'appui et en ce que soit : characterized in that at least one support face comprises a projection extending towards the free face and in that at least one leaf spring comprises a portion bearing against the projection of the support face and in that either :
la portion du ressort en appui contre la saillie est plane et en ce que la saillie est plane et en ce que la portion plane du ressort recouvre au moins entièrement la face d' appuie de la saillie, the portion of the spring bearing against the projection is planar and in that the projection is planar and in that the planar portion of the spring covers at least completely the supporting face of the projection,
soit either
la surface (1610a) de la saillie (1610) contre laquelle le ressort est en appuie comprend une portion de contact sur toute la longueur de la surface de la saillie et en ce que cette portion est recouverte par le ressort à l'état repos. the surface (1610a) of the projection (1610) against which the spring rests comprises a contact portion over the entire length of the surface of the projection and in that this portion is covered by the spring in the rest state.
Ensemble selon la revendication précédente dans lequel la portion du ressort en contact avec la saillie a une forme complémentaire avec la portion de contact de la surface de la sailli. Assembly according to the preceding claim in which the portion of the spring in contact with the projection has a complementary shape with the contact portion of the surface of the projection.
Ensemble selon l'une des revendications précédentes, dans lequel la portion plane s'étend au-delà de la saillie. Assembly according to one of the preceding claims, in which the flat portion extends beyond the projection.
Ensemble selon l'une quelconque des revendications précédentes, dans lequel le ressort comprend deux bras s'étendant de part et d'autres de la portion en appui contre la saillie. Assembly according to any one of the preceding claims, in which the spring comprises two arms extending on either side of the portion bearing against the projection.
Ensemble selon la revendication précédente, dans lequel chaque bras comprend une portion plane. Assembly according to the preceding claim, in which each arm comprises a planar portion.
Ensemble selon la revendication précédente, dans lequel chaque bras comprend une seconde portion plane. Assembly according to the preceding claim, in which each arm comprises a second planar portion.
8. Ensemble selon la revendication 4, dans lequel chaque bras est en forme d'arc.8. Assembly according to claim 4, wherein each arm is arc-shaped.
9. Ensemble selon l'une quelconque des revendications précédentes, dans lequel la saillie est une surface plane radial et axial. 9. Assembly according to any one of the preceding claims, wherein the projection is a radial and axial plane surface.
10. Ensemble selon l'une quelconque des revendications comprenant en outre des rouleaux, chacun des rouleaux étant logé dans un des logements respectifs entre le ressort et la face libre. 10. Assembly according to any one of claims further comprising rollers, each of the rollers being housed in one of the respective housings between the spring and the free face.
11. Ensemble selon la revendication 10 et 4, dans lequel le rouleau est en contact contre les bras du ressort. 11. Assembly according to claim 10 and 4, in which the roller is in contact against the arms of the spring.
12. Ensemble selon la revendication 1 à 10 dans lequel la paroi (16) comprend une ouverture débouchant sur la face d' appuie et la face libre permettant de passer la graisse ou huile d'un logement à un autre. 12. Assembly according to claim 1 to 10 in which the wall (16) comprises an opening opening onto the support face and the free face allowing grease or oil to pass from one housing to another.
13. Roue libre comprenant un ensemble selon l'une quelconque des revendications précédentes comprenant en outre une bague interne et une bague externe fermant les logements et en ce que la bague interne comprend une surface externe comprenant une rampe. 13. Freewheel comprising an assembly according to any one of the preceding claims further comprising an internal ring and an external ring closing the housings and in that the internal ring comprises an external surface comprising a ramp.
14. Roue libre comprenant un ensemble selon l'une quelconque des revendications 1 à 11 comprenant en outre une bague interne et une bague externe fermant les logements et en ce que la bague externe comprend une surface interne comprenant une rampe. 14. Free wheel comprising an assembly according to any one of claims 1 to 11 further comprising an internal ring and an external ring closing the housings and in that the external ring comprises an internal surface comprising a ramp.
15. Poulie comprenant une roue libre selon la revendication précédente, comprenant en outre une surface externe solidaire en rotation de la bague externe, la surface externe étant apte à être entraîner par une courroie. 15. Pulley comprising a free wheel according to the preceding claim, further comprising an external surface integral in rotation with the external ring, the external surface being capable of being driven by a belt.
16. Machine électrique de véhicule automobile, comprenant un arbre de sortie et une poulie selon la revendication précédente, l'arbre de sortie étant monté solidaire en rotation avec la bague interne. 16. Electric motor vehicle machine, comprising an output shaft and a pulley according to the preceding claim, the output shaft being mounted integrally in rotation with the internal ring.
EP15706906.3A 2014-02-11 2015-02-10 Overrunning clutch cage and spring thereof having arms remote from the cage in the compressed position Withdrawn EP3105466A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1451050A FR3017434A1 (en) 2014-02-11 2014-02-11 FREE-WHEEL CLUTCH CAGE AND SPRING HAVING REMOTE CAGE ARMS IN COMPRESSED POSITION
PCT/FR2015/050315 WO2015121575A2 (en) 2014-02-11 2015-02-10 Overrunning clutch cage and spring thereof having arms remote from the cage in the compressed position

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DE102017210734A1 (en) * 2017-06-26 2018-12-27 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Electromotive drive for a motor vehicle

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US3500977A (en) * 1968-02-21 1970-03-17 Torrington Co Retainer for overrunning clutch with spring insert
JP2006226318A (en) * 2005-02-15 2006-08-31 Nsk Ltd One-way clutch built-in pulley device
CN100468917C (en) * 2006-10-25 2009-03-11 江苏南方轴承股份有限公司 Automobile alternator integral pulley assembly
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WO2015121575A3 (en) 2015-11-12

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