FR2544043A1 - Device for taking up backlash for reduction gear using planetary gear trains and reduction gear comprising it - Google Patents
Device for taking up backlash for reduction gear using planetary gear trains and reduction gear comprising it Download PDFInfo
- Publication number
- FR2544043A1 FR2544043A1 FR8305690A FR8305690A FR2544043A1 FR 2544043 A1 FR2544043 A1 FR 2544043A1 FR 8305690 A FR8305690 A FR 8305690A FR 8305690 A FR8305690 A FR 8305690A FR 2544043 A1 FR2544043 A1 FR 2544043A1
- Authority
- FR
- France
- Prior art keywords
- pinion
- teeth
- auxiliary
- main
- circumferential
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H55/18—Special devices for taking up backlash
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2863—Arrangements for adjusting or for taking-up backlash
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H2001/289—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two or more coaxial and identical sets of orbital gears, e.g. for distributing torque between the coaxial sets
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
Description
L'invention a pour objet un dispositif destiné à rattraper automatiquement le jeu angulaire qui existe entre les dents en prise d'un pignon satellite dans un train planetaire engrenant simultanément avec deux roues dentées telles qu'une roue dentée extérieurement et une couronne dentée intérieurement. The invention relates to a device intended to automatically compensate for the angular play which exists between the teeth in engagement of a satellite pinion in a planetary gear meshing simultaneously with two toothed wheels such as an externally toothed wheel and an internally toothed crown.
L'invention est particulièrement avantageuse dans les réducteurs à trains planétaires qui ont la qualité appréciée de présenter un encombrement réduit et un rapport élevé de réduction. Ils sont applicables à de nombreux mécanismes : appareils de pointage, de mesure, d'indexation, radars, robots, machines-outils, appareils médicaux, etc.. The invention is particularly advantageous in planetary gear reducers which have the appreciated quality of having a reduced bulk and a high reduction ratio. They are applicable to many mechanisms: pointing, measuring, indexing devices, radars, robots, machine tools, medical devices, etc.
I1 s'agit fréquemment de mécanismes d'asservissement avec lesquels il est très souhaitable de n'avoir qu'un jeu angulaire extrêmement réduit, sinon nul, dans l'un ou l'autre sens de rotation. Pour les appareils deposition- nement ou de repérage pouvant tourner ou se déplacer alternativement dans les deux sens, il est souhaitable de supprimer tout jeu angulaire. These are frequently servo mechanisms with which it is very desirable to have only an extremely reduced angular play, if not zero, in one or the other direction of rotation. For positioning or locating devices which can rotate or move alternately in both directions, it is desirable to eliminate any angular play.
On ne connaît pas jusqu'à présent le dispositif simple, incorporé par construction à un réducteur à train planétaire, qui en élimine le jeu angulaire. La difficulté à surmonter provient de ce que les pignons satellites engrènent simultanément avec deux dentures, l'une d'une roue centrale, l'autre d'une couronne extérieure. Il faut donc réaliser un contact permanent des dents de chaque satellite sur deux faces distinctes et opposées. De plus, si les satellites ainsi que la roue dentée centrale peuvent avoir une denture rectifiée, il en va différemment pour la couronne à denture intérieure qui n'est pas réalisable avec la même précision. The simple device is not known up to now, incorporated by construction into a planetary gear reducer, which eliminates the angular play. The difficulty to overcome stems from the fact that the planet gears mesh simultaneously with two teeth, one of a central wheel, the other of an outer ring. It is therefore necessary to make permanent contact with the teeth of each satellite on two distinct and opposite faces. In addition, if the satellites as well as the central gear can have a rectified toothing, it is different for the crown with internal toothing which cannot be produced with the same precision.
L'invention a pour but principal d'apporter un dispositif de rattrapage de jeu angulaire dans les deux sens de rotation des pignons satellites dans un réducteur à train planétaire. The main object of the invention is to provide a device for compensating for angular play in the two directions of rotation of the planet gears in a planetary gear reducer.
Le dispositif de rattrapage de jeu angulaire comprend, selon l'invention, un pignon principal engrenant simultanément avec les deux pièces dentées, un premier pignon auxiliaire disposé coaxialement sur un premier côté du pignon principal, accouplé en rotation avec celui-ci par un moyen d'accouplement à effet élastique circonférentiel, ce premier pignon auxiliaire engrenant avec l'une seulement des deux pièces dentées; un second pignon auxiliaire est disposé coaxialement sur le second côté du pignon principal et accouplé en rotation avec celui-ci par un moyen d'accouplement à effet élastique circonférentiel, ce second pignon auxiliaire engrenant seulement avec l'autre des deux pièces dentées qui n'engrène pas avec le premier pignon auxiliaire. The angular play take-up device comprises, according to the invention, a main pinion meshing simultaneously with the two toothed parts, a first auxiliary pinion arranged coaxially on a first side of the main pinion, coupled in rotation with the latter by means of coupling with circumferential elastic effect, this first auxiliary pinion meshing with only one of the two toothed parts; a second auxiliary pinion is arranged coaxially on the second side of the main pinion and coupled in rotation with the latter by a coupling means with circumferential elastic effect, this second auxiliary pinion meshing only with the other of the two toothed parts which do not not mesh with the first auxiliary gear.
L'invention n'impose pas le moyen d'accouplement qui relie le pignon principal aux deux pignons auxiliaires; tout moyen connu convenable peut être adapté à cette fin. Toutefois, en fonction des couples de rotation mis en oeuvre, il est préférable, selon l'invention, d'utiliser un moyen particulièrement approprié comme un anneau élastique à doigts dirigés axialement en sens opposés à ses extrémités dans le cas où le couple est relativement faible, ou un logement axial conique recevant un élément d'accouplement sphérique ou conique repoussé élastiquement en sens axial dans ce logement en cas de couple plus élevé. The invention does not impose the coupling means which connects the main pinion to the two auxiliary pinions; any suitable known means can be adapted for this purpose. However, depending on the rotational torques used, it is preferable, according to the invention, to use a particularly suitable means such as an elastic ring with fingers directed axially in opposite directions at its ends in the case where the torque is relatively weak, or a conical axial housing receiving a spherical or conical coupling element elastically pushed axially in this housing in the event of higher torque.
On donnera, sans intention limitative et sans exclure aucune variante, une description de plusieurs exemples de réalisation de l'invention. On se reportera au dessin annexé dans lequel
- la figure 1 est une vue en coupe par un plan diamétral d'un réducteur de vitesse à train planétaire à dispositif de rattrapage de jeu angulaire selon l'invention,
- la figure 2 est une vue de détail en coupe par un plan diamétral d'un satellite du réducteur de la figure 1,
- la figure 3 est une vue en élévation du moyen d'accouplement qui fait partie du satellite de la fig. 2,
- la figure 4 est une vue de dessus du moyen d'accouplement de la figure 3
- la figure 5 est une vue analogue à la figure 3 montrant une variante du moyen d'accouplement, ~ - la figure 6 est une vue en coupe selon VI-VI de la figure 5.There will be given, without limiting intention and without excluding any variant, a description of several embodiments of the invention. Reference is made to the appended drawing in which
FIG. 1 is a sectional view through a diametrical plane of a planetary gear speed reducer with an angular play take-up device according to the invention,
FIG. 2 is a detailed view in section through a diametral plane of a satellite of the reducer of FIG. 1,
- Figure 3 is an elevational view of the coupling means which is part of the satellite of FIG. 2,
- Figure 4 is a top view of the coupling means of Figure 3
- Figure 5 is a view similar to Figure 3 showing a variant of the coupling means, ~ - Figure 6 is a sectional view along VI-VI of Figure 5.
Dans l'exemple représenté ici, le réducteur comprend un pignon central 1 ayant une denture 2 qui est entoure coaxialement d'une couronne 3 ayant une denture intérieure 4. Entre ces deux pièces dentées 1, 3 est monté coaxialement à cet ensemble un porte-satellite 5 qui porte au moins un axe 6 sur lequel est montré libre en rotation un pignon satellite 7. In the example shown here, the reducer comprises a central pinion 1 having a toothing 2 which is coaxially surrounded by a crown 3 having an internal toothing 4. Between these two toothed parts 1, 3 is mounted coaxially to this assembly a holder satellite 5 which carries at least one axis 6 on which a satellite pinion 7 is shown free to rotate.
Ce pignon satellite 7 est muni d'un rattrapage de jeu angulaire conforme à l'invention. I1 comprend un pignon principal 8 à denture 9 qui engrène en permanence avec les deux dentures 2 et 4 du pignon central 1 et de la couronne 3 respectivement. Sur un côté, autrement dit sur l'une de ses faces extrêmes en sens axial,. le pignon principal 8 est accouplé en rotation avec un premier pignon auxiliaire 10 par l'intermédiaire d'un moyen d'accouplement11 à effet élastique circonférentiel. Ce premier pignon auxiliaire 10 a une denture 12 qui engrène uniquement avec la denture 4 de la couronne 3. This satellite pinion 7 is provided with an angular backlash adjustment according to the invention. I1 comprises a main pinion 8 with teeth 9 which permanently meshes with the two teeth 2 and 4 of the central pinion 1 and of the crown 3 respectively. On one side, in other words on one of its end faces in the axial direction. the main pinion 8 is coupled in rotation with a first auxiliary pinion 10 by means of a coupling means 11 with a circumferential elastic effect. This first auxiliary pinion 10 has a toothing 12 which meshes only with the toothing 4 of the crown 3.
Sur son autre côté, c'est-à-dire sur sa face extrême opposée, le pignon principal 8 est accouple en rotation avec un second pignon auxiliaire 13 par l'intermédiaire d'un moyen d'accouplement 14 à effet élastique circonférentiel. Ce second pignon auxiliaire 13 a une denture 15 qui engrène uniquement avec la denture 2 du pignon central 1. On its other side, that is to say on its opposite end face, the main pinion 8 is coupled in rotation with a second auxiliary pinion 13 by means of a coupling means 14 with circumferential elastic effect. This second auxiliary pinion 13 has a toothing 15 which meshes only with the toothing 2 of the central pinion 1.
Le pignon principal 8 et les deux pignons auxiliaires 10, 13 sont montés sur l'axe 6 porté par le porte-satellite 5. De préférence, le pignon principal 8 est prolongé en sens axial sur chacun de ses deux côtés par une partie extrême cylindrique 16, 17 respectivement, qui sert à porter le pignon auxiliaire correspondant 10, 13 respectivement. The main pinion 8 and the two auxiliary pinions 10, 13 are mounted on the axis 6 carried by the planet carrier 5. Preferably, the main pinion 8 is extended in axial direction on each of its two sides by an extreme cylindrical part. 16, 17 respectively, which serves to carry the corresponding auxiliary pinion 10, 13 respectively.
Quand le porte-satellites 5 est équipé de plusieurs satellites 7, comme il est habituel, chacun d'eux- est cons'citué comme on vient de le décrire. Quand un réducteur comprend plusieurs trains planétaires, tous les satellites sont aussi constitués comme on l'a décrit, si l'on souhaite obtenir un rattrapage efficace et durable du jeu angulaire. When the planet carrier 5 is equipped with several satellites 7, as is usual, each of them is formed as has just been described. When a reduction gear comprises several planetary trains, all the satellites are also formed as described, if one wishes to obtain an effective and lasting catch-up of the angular play.
Les figures 2 à 4 montrent un exemple de moyen d'accouplement en rotation à effet élastique circonférentiel. Dans chacune des faces extrêmes du pignon principal 8 est creusée concentriquement à la partie extrême cylindrique 16, 17 une gorge annulaire 18, 19 respectivement. Figures 2 to 4 show an example of a coupling means in rotation with a circumferential elastic effect. In each of the end faces of the main pinion 8 is hollowed concentrically with the cylindrical end part 16, 17 an annular groove 18, 19 respectively.
Chaque gorge 18, 19 est destinée à recevoir un anneau élastique 20 (figures -3, 4) dont les extrémités sont pliées à angle droit par rapport à son plan pour présenter deux doigts 21, 22 s'étendant en sens axial, en sens opposé.Each groove 18, 19 is intended to receive an elastic ring 20 (Figures -3, 4) whose ends are bent at right angles to its plane to present two fingers 21, 22 extending in axial direction, in opposite direction .
Dans les faces extrêmes en regard l'une de l'autre du pignon principal 8 et de chaque pignon auxiliaire 10, 13 sont ménagés des logements 23 d'une part, 24 et 25 d'autre part, pour recevoir respectivement les doigts 21, 22. In the end faces opposite one another of the main pinion 8 and of each auxiliary pinion 10, 13 are formed housings 23 on the one hand, 24 and 25 on the other hand, for receiving the fingers 21 respectively, 22.
L'anneau élastique 20 des figures 2 à 4 est réalisé à partir d'un fil à section ronde. Sur la figure 1, l'anneau est à section rectangulaire 26, les doigts 27, 28 étant cylindriques. The elastic ring 20 of Figures 2 to 4 is made from a round section wire. In Figure 1, the ring is of rectangular section 26, the fingers 27, 28 being cylindrical.
Les figures 5 et 6 montrent un autre exemple de moyen d'accouplement en rotation à effet élastique circonférentiel;
A travers le pignon principal 8 sont percés sur une même circonférence, dans la partie intermédiaire entre denture 9 et les parties extrêmes cylindriques 16, 17, au moins deux trous 29, 30qui contiennent chacun deux pistons 31, 32. Les trous 29, 30 sont parallèles à l'axe 6 ainsi que les pistons 31, 32 et un ressort de compression 33 est interposé entre eux pour les repousser vers l'extérieur en direction chacun respectivement d'un pignon auxiliaire 10, 13. Chaque piston 31, 32 est terminé par une partie tronconique 34, 35 qui pénètre -dans un logement correspondant 36, 37 prévu dans la face extrême tournée vers le pignon principal 8 de chaque pignon auxiliaire 10, 13.Les logements 36 sont déportés en sens circonférentiel par rapport à la denture 12, 15 du pignon auxiliaire 10, de façon que, quand les dentures 12 et 2 de ce pignon auxiliaire 10 et du pignon principal 8 sont mises en engrènement avec la denture 4 de la couronne 3, ces logements 36 ne sont plus coaxiaux avec les parties extrêmes tronconiques 34 des pistons. Les parties tronconiques 34 sont donc en retrait par rapport aux logements 36 et en -tendant à s'y enfoncer sous la poussée des ressorts 33, elles donnent naissance à des forces circonférentielles F (figure 6).Figures 5 and 6 show another example of a rotational coupling means with circumferential elastic effect;
Through the main pinion 8 are drilled on the same circumference, in the intermediate part between teeth 9 and the cylindrical end parts 16, 17, at least two holes 29, 30 which each contain two pistons 31, 32. The holes 29, 30 are parallel to the axis 6 as well as the pistons 31, 32 and a compression spring 33 is interposed between them to push them outwards in the direction each one respectively of an auxiliary pinion 10, 13. Each piston 31, 32 is finished by a frustoconical part 34, 35 which penetrates -in a corresponding housing 36, 37 provided in the end face facing the main pinion 8 of each auxiliary pinion 10, 13.The housings 36 are offset in circumferential direction relative to the toothing 12 , 15 of the auxiliary pinion 10, so that when the teeth 12 and 2 of this auxiliary pinion 10 and the main pinion 8 are engaged with the teeth 4 of the crown 3, these housings 36 are no longer coaxial with the parts frustoconical extremes 34 of the pistons. The frusto-conical parts 34 are therefore set back relative to the housings 36 and, by tending to sink therein under the thrust of the springs 33, they give rise to circumferential forces F (FIG. 6).
I1 en est de même entre le pignon principal 8 et le pignon auxiliaire 13 engrenant ensemble avec la denture 2 du pignon central 1. I1 is the same between the main pinion 8 and the auxiliary pinion 13 meshing together with the toothing 2 of the central pinion 1.
Les anneaux élastiques 20 de la figure 2 ont un rôle analogue. Quand les dentures engrènent ensemble avec une autre même denture, ces anneaux sont précontraints et exercent une force circonférentielle. Cette force tend à écarter les dentures dans un sens qui supprime tout jeu angulaire dans les deux sens de rotation d'une part vis-à -vis du pignon central 1 et, d'autre part, vis-à-vis de la couronne 3. The elastic rings 20 of Figure 2 have a similar role. When the teeth mesh together with another same teeth, these rings are prestressed and exert a circumferential force. This force tends to spread the teeth in a direction which eliminates any angular play in the two directions of rotation on the one hand with respect to the central pinion 1 and, on the other hand, with respect to the crown 3 .
On notera que, dans une variante plus simple, les pistons 31, 32 pourraient être remplacés par des billes qui seraient poussées par un ressort 33 vers les logements 36, 37. It will be noted that, in a simpler variant, the pistons 31, 32 could be replaced by balls which would be pushed by a spring 33 towards the housings 36, 37.
L'invention est particulièrement avantageuse dans les réducteurs à trains planétaires dont l'encombrement est réduit. The invention is particularly advantageous in planetary gear reducers whose size is reduced.
Le porte-satellites 5 peut comprendre un ou plusieurs ensembles de satellites selon le couple à transmettre. The planet carrier 5 can include one or more sets of satellites depending on the torque to be transmitted.
On notera que l'invention est utilisable aussi dans les réducteurs planétaires aits flottants dans lesquels les efforts s'équilibrent automatiquement sur trois planétaires. It will be noted that the invention can also be used in planetary ait floating reducers in which the forces are automatically balanced on three planetary.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8305690A FR2544043B1 (en) | 1983-04-07 | 1983-04-07 | ANGLE GAME RETRAPING DEVICE FOR PLANETARY GEAR REDUCERS AND REDUCER COMPRISING SAME |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8305690A FR2544043B1 (en) | 1983-04-07 | 1983-04-07 | ANGLE GAME RETRAPING DEVICE FOR PLANETARY GEAR REDUCERS AND REDUCER COMPRISING SAME |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2544043A1 true FR2544043A1 (en) | 1984-10-12 |
| FR2544043B1 FR2544043B1 (en) | 1987-01-09 |
Family
ID=9287611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8305690A Expired FR2544043B1 (en) | 1983-04-07 | 1983-04-07 | ANGLE GAME RETRAPING DEVICE FOR PLANETARY GEAR REDUCERS AND REDUCER COMPRISING SAME |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2544043B1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2580358A1 (en) * | 1985-04-12 | 1986-10-17 | James Damas | Mechanical reduction gear |
| FR2599454A1 (en) * | 1986-05-27 | 1987-12-04 | Microbo Sa | Transmission with planetary gears especially for an industrial robot |
| CH667314A5 (en) * | 1985-09-23 | 1988-09-30 | Hans Bachmann Ag | Epicyclic gearing with precise position control - has split planetary gears with axial pressure and helical teeth |
| FR2764236A1 (en) * | 1997-06-05 | 1998-12-11 | Roland Man Druckmasch | FOLDER FOR FOLDING WITH VALVES |
| FR2809153A1 (en) * | 2000-05-17 | 2001-11-23 | Timothee Biel | Assembly for vehicle transmission has first and second gears with pinions mobile around the same axis and pinions associated to the stage carrier, equilibrated with a mass |
| FR2809152A1 (en) * | 2000-05-17 | 2001-11-23 | Timothee Biel | Assembly for producing a phase difference between two transmission elements includes an epicycloidal train made of two parallel gears, whose pinions are linked two by two and one group of pinion is integral with a satellite support |
| WO2003106114A1 (en) * | 2002-06-13 | 2003-12-24 | Sig Technology Ltd. | Parallel manipulator having backlash-free gearings |
| EP1693602A1 (en) * | 2005-02-22 | 2006-08-23 | Zf Friedrichshafen Ag | Transmission with preloaded fixing element |
| CN101918733A (en) * | 2008-01-03 | 2010-12-15 | 莫文塔斯有限公司 | Arrangement in a planetary gearing and a planetary gear |
| WO2013034123A1 (en) * | 2011-09-09 | 2013-03-14 | Schaeffler Technologies AG & Co. KG | Manual planetary transmission for a starter transmission of a pulley assembly of a motor vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2802377A (en) * | 1954-04-09 | 1957-08-13 | Charles Berthiez Ets | Driving of spindles of machine tools |
| US3137181A (en) * | 1962-04-03 | 1964-06-16 | Edward J Guilbert | Anti-backlash differential |
| US3943780A (en) * | 1974-07-18 | 1976-03-16 | Hermann Klaue | Planetary gear drive with power distribution |
| FR2520828A1 (en) * | 1982-02-02 | 1983-08-05 | Tamagnaud Ets | Speed reducing transmission with parallel drive - has angular play take=up by ratchet wheels on intermediate shaft ends |
-
1983
- 1983-04-07 FR FR8305690A patent/FR2544043B1/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2802377A (en) * | 1954-04-09 | 1957-08-13 | Charles Berthiez Ets | Driving of spindles of machine tools |
| US3137181A (en) * | 1962-04-03 | 1964-06-16 | Edward J Guilbert | Anti-backlash differential |
| US3943780A (en) * | 1974-07-18 | 1976-03-16 | Hermann Klaue | Planetary gear drive with power distribution |
| FR2520828A1 (en) * | 1982-02-02 | 1983-08-05 | Tamagnaud Ets | Speed reducing transmission with parallel drive - has angular play take=up by ratchet wheels on intermediate shaft ends |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2580358A1 (en) * | 1985-04-12 | 1986-10-17 | James Damas | Mechanical reduction gear |
| CH667314A5 (en) * | 1985-09-23 | 1988-09-30 | Hans Bachmann Ag | Epicyclic gearing with precise position control - has split planetary gears with axial pressure and helical teeth |
| FR2599454A1 (en) * | 1986-05-27 | 1987-12-04 | Microbo Sa | Transmission with planetary gears especially for an industrial robot |
| FR2764236A1 (en) * | 1997-06-05 | 1998-12-11 | Roland Man Druckmasch | FOLDER FOR FOLDING WITH VALVES |
| US6047608A (en) * | 1997-06-05 | 2000-04-11 | Man Roland Druckmaschinen Ag | Folding device for blade folds |
| FR2809153A1 (en) * | 2000-05-17 | 2001-11-23 | Timothee Biel | Assembly for vehicle transmission has first and second gears with pinions mobile around the same axis and pinions associated to the stage carrier, equilibrated with a mass |
| FR2809152A1 (en) * | 2000-05-17 | 2001-11-23 | Timothee Biel | Assembly for producing a phase difference between two transmission elements includes an epicycloidal train made of two parallel gears, whose pinions are linked two by two and one group of pinion is integral with a satellite support |
| WO2003106114A1 (en) * | 2002-06-13 | 2003-12-24 | Sig Technology Ltd. | Parallel manipulator having backlash-free gearings |
| EP1693602A1 (en) * | 2005-02-22 | 2006-08-23 | Zf Friedrichshafen Ag | Transmission with preloaded fixing element |
| CN101918733A (en) * | 2008-01-03 | 2010-12-15 | 莫文塔斯有限公司 | Arrangement in a planetary gearing and a planetary gear |
| WO2013034123A1 (en) * | 2011-09-09 | 2013-03-14 | Schaeffler Technologies AG & Co. KG | Manual planetary transmission for a starter transmission of a pulley assembly of a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2544043B1 (en) | 1987-01-09 |
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