FR2589214A1 - Mechanical gear box with one primary shaft and two secondary shafts - Google Patents

Mechanical gear box with one primary shaft and two secondary shafts Download PDF

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Publication number
FR2589214A1
FR2589214A1 FR8515852A FR8515852A FR2589214A1 FR 2589214 A1 FR2589214 A1 FR 2589214A1 FR 8515852 A FR8515852 A FR 8515852A FR 8515852 A FR8515852 A FR 8515852A FR 2589214 A1 FR2589214 A1 FR 2589214A1
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FR
France
Prior art keywords
gear
shaft
pinion
reverse
secondary shaft
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
Application number
FR8515852A
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French (fr)
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FR2589214B1 (en
Inventor
Alain Saint-Jean
Michel Bagard
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Priority to FR8515852A priority Critical patent/FR2589214B1/en
Priority to FR8614434A priority patent/FR2605377B2/en
Priority to CA000521406A priority patent/CA1314414C/en
Priority to AT86402390T priority patent/ATE44308T1/en
Priority to ES86402390T priority patent/ES2010665B3/en
Priority to EP86402390A priority patent/EP0224407B1/en
Priority to US06/922,743 priority patent/US4802373A/en
Priority to DE8686402390T priority patent/DE3664152D1/en
Publication of FR2589214A1 publication Critical patent/FR2589214A1/en
Application granted granted Critical
Publication of FR2589214B1 publication Critical patent/FR2589214B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • F16H2003/0931—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts each countershaft having an output gear meshing with a single common gear on the output shaft
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0047—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising five forward speeds

Abstract

Mechanical gear box with one primary shaft 1 and with two secondary shafts 2 and 3, characterised in that: - the first secondary shaft 2 comprises idling pinions for first 10, second 11, fifth 12 and reverse 13 gear; with a double synchroniser 26 arranged between the first gear 10 and a second gear 11 pinions, and a double synchroniser 28 arranged between the fifth gear 12 and reverse gear 13 pinions; - the second secondary shaft 3 comprises idler pinions for third gear 14 and fourth gear 15 with a double synchroniser 27 arranged between the third gear 14 and fifth gear 15 pinions; - the third gear 7 pinion of the primary shaft 1 being arranged between the teeth of the idling pinion 13 for reverse gear of the first secondary shaft 2, and the double synchroniser 28 for fifth gear and reverse gear.

Description

BOITE DE VITESSES MECANIQUE A UN ARBRE PRIMAIRE ET A DEUX
ARBRES SECONDAIRES.MECHANICAL GEARBOX WITH ONE PRIMARY SHAFT AND TWO
SECONDARY TREES.

La présente invention se rapporte à une boîte de vitesses mécanique à trois arbres, qui permet d' avoir cinq vitesses avant et une marche arrière, et qui s' applique notamment à des véhicules automobiles.The present invention relates to a mechanical gearbox with three shafts, which makes it possible to have five forward gears and one reverse gear, and which applies in particular to motor vehicles.

On connaît de nombreuses boîtes de vitesses mécaniques trois arbres, telles que celles à un premier arbre secondaire, qui permet avec l'arbre primaire d' avoir une boîte de vitesses mécanique classique à quatre vitesses avant et une marche arrière classique à baladeur, et auxquelles on ajoute simplement un deuxième arbre secondaire, sur lequel on dispose un pignon de cinquième vitesse, qui est entraîné par le me me pignon de l' arbre primaire, que le pignon de quatrième vitesse.Numerous three-shaft mechanical gearboxes are known, such as those with a first secondary shaft, which makes it possible, with the primary shaft, to have a conventional mechanical gearbox with four forward speeds and a conventional reverse gear drive, and to which a second secondary shaft is simply added, on which there is a fifth speed pinion, which is driven by the same pinion of the primary shaft, as the fourth speed pinion.

On connaît d' autres types de boîte de vitesses mécanique, qui prévoient sur un premier arbre secondaire les pignons de première et de deuxième vitesses avant et de marche arrière, tandis que le deuxième arbre secondaire comporte les pignons de troisième, quatrième, et cinquième vitesse avant. Dans ces structures ramassées, où l' on peut avoir les pignons foux de premières et de troisième, qui sont entraînés par le même pignon primaire, tandis que les pignons foux de . deuxième et de quatrième sont entraînés par - le même pignon de l' arbre primaire. Cette disposition conduit, pour l' étagement des vitesses, à avoir deux pignons de sortie de mouvement des arbres secondaires, appelés pignons de descente ou d' attaque qui soient différents.Cette caractéristique de structure verrouille l' étagement de la boîte de vitesses à tous les niveaux pour une ouverture entre la première et la quatrième vitesse donnée ; et par conséquent pour les ouvertures intérmédiaires entre la première et la deuxième, entre la deuxième et la troisième, et entre la troisième et la quatrième.Other types of mechanical gearbox are known, which provide on a first secondary shaft the gears of first and second speeds forward and reverse, while the second secondary shaft comprises the gears of third, fourth, and fifth speed before. In these collected structures, where one can have the first and third idler gears, which are driven by the same primary gear, while the idle gears of. second and fourth are driven by - the same pinion of the primary shaft. This arrangement leads, for the staging of the gears, to having two output gears for the movement of the secondary shafts, called lowering or driving gears, which are different. This structural characteristic locks the staging of the gearbox to all the levels for an opening between the first and fourth speed given; and therefore for the intermediate openings between the first and the second, between the second and the third, and between the third and the fourth.

De plus aucune de ces boîtes connues ne permet d' avoir une marche arrière synchronisée dans un encombrement réduit (marche arrière classique c' est-à-dire à baladeur). In addition, none of these known boxes makes it possible to have a synchronized reverse gear in a small footprint (conventional reverse gear, that is to say with a walkman).

Le but de la présente invention est de proposer une boîte de vitesses mécaniques à trois arbres, qui permet d' avoir cinq vitesses avant et une marche arrière synchronisée dans un encombrement axial le plus réduit possible, tout en permettant une certaine variation de l' ouverture de la boîte de vitesses pour une structure et des dimensions données.The object of the present invention is to propose a mechanical gearbox with three shafts, which makes it possible to have five forward gears and a synchronized reverse gear in the smallest possible axial size, while allowing a certain variation of the opening. of the gearbox for a given structure and dimensions.

Selon un mode de réalisation de l'invention, la boîte de vitesses mécanique à un arbre primaire et à deux arbres secondaires est caractérisée en ce que : - le premier arbre secondaire comporte les pignons foux de première, de
deuxième, de cinquième vitesse avant et de marche arrière ; avec un
synchroniseur double disposé entre les pignons de première et de
deuxième, et entre les pignons de cinquième et de marche arrière - le deuxième -arbre secondaire comporte les pignons foux de troisième et
de quatrième vitesse avant avec un synchroniseur double disposé entre
les pignons de troisième et quatrième - le pignon de troisième étant disposé entre la denture du pignon fou de
marche arrière du premier arbre secondaire, et le synchronisuer double
de cinquième et de marche arrière.According to one embodiment of the invention, the mechanical gearbox with a primary shaft and two secondary shafts is characterized in that: - the first secondary shaft comprises the idler gears of the first, of
second, fifth gear forward and reverse; with a
double synchronizer arranged between the first and second sprockets
second, and between the fifth and reverse gears - the second secondary shaft includes the idler gears of third and
fourth speed forward with a dual synchronizer disposed between
the third and fourth pinions - the third pinion being placed between the teeth of the idler pinion of
reverse the first secondary shaft, and synchronize it double
fifth and reverse.

Selon un mode de réalisation de l'invention, le pignon fou de quatrième vitesse avant du deuxième arbre secondaire, et le pignon fou de cinquième vitesse avant du premier arbre secondaire sont entraîné l' un et l' autre par le même pignon de l' arbre primaire.According to one embodiment of the invention, the idler gear of fourth speed before the second secondary shaft, and the idler gear of fifth speed before the first secondary shaft are both driven by the same gear of the primary tree.

Selon un mode de réalisation de l'invention, le pignon de descente du deuxième arbre secondaire est identique au pignon de descente du premier arbre secondaire.According to one embodiment of the invention, the lower pinion of the second secondary shaft is identical to the lower pinion of the first secondary shaft.

Selon un mode de réalisation de l'invention, le pignon intermédiaire de marche arrière est monté sur un axe intermédiaire, qui est solidaire du carter d' embrayage, et qui est monté en porte à faux dans ce carter d' embrayage. According to one embodiment of the invention, the intermediate reverse gear is mounted on an intermediate axis, which is integral with the clutch housing, and which is mounted cantilevered in this clutch housing.

La boîte de vitesses mécanique à trois arbres selon l'invention présente ainsi d' avantage de permettre une adaptation de l' étagement entre les premières, deuxièmes, troisièmes, et quatrièmes vitesses. De plus cette boîte de vitesses offre la possibilité d' avoir deux pignons d' attaque, sur la sortie de mouvement des arbres secondaires, qui soient identiques. Cette disposition permet d' avoir, d' une part une meilleure standardisation et un prix de revient -plus faible, et d' autre part une plus grande facilité d' adaptation des rapports de descente de mouvement sur la couronne du différentiel suivant le véhicule à équiper.En effet pour ce dernier point, il ne faut changer que les dimensions de deux éléments complémentaires: la couronne du différentiel et son pignon d' attaque ; ce pignon d' attaque étant identique pour chacun des arbres secondaires. Le rapport de descente est le même pour chacun des arbres secondaires, et on revient ainsi au cas le plus simple d' une boîte de vitesses mécanique à deux arbres. Enfin, la boîte de vitesses mécanique à trois arbres selon l'invention permet d' avoir une marche arrière synchronisée, qui est disposée dans un encombrement axial très réduit.The mechanical transmission with three shafts according to the invention thus has the advantage of allowing adaptation of the staging between the first, second, third and fourth speeds. In addition, this gearbox offers the possibility of having two drive pinions, on the output of movement of the secondary shafts, which are identical. This arrangement makes it possible, on the one hand, to have better standardization and a lower cost price, and on the other hand to make it easier to adapt the movement descent ratios on the crown of the differential depending on the vehicle to be used. Indeed, for this last point, it is only necessary to change the dimensions of two complementary elements: the differential crown and its drive pinion; this drive pinion being identical for each of the secondary shafts. The descent ratio is the same for each of the secondary shafts, and we thus return to the simplest case of a mechanical gearbox with two shafts. Finally, the three-shaft mechanical gearbox according to the invention makes it possible to have a synchronized reverse gear, which is arranged in a very small axial size.

L'invention sera mieux comprise par l' étude d' un mode de réalisation particulier décrit à titre nullement limitatif et illustré par les dessins annexés, sur lesquels - la figure 1 est une vue longitudinale développée en coupe d' une boîte
de vitesses selon l'invention - la figure 2 est une vue partielle suivant II de la figure l ; - la figure 3 est une coupe partielle III-III de la figure 2.The invention will be better understood by studying a particular embodiment described by way of non-limiting example and illustrated by the appended drawings, in which - Figure 1 is a longitudinal view developed in section of a box
gears according to the invention - Figure 2 is a partial view along II of Figure l; - Figure 3 is a partial section III-III of Figure 2.

On voit sur la figure 1 l' ensemble d' une boîte de vitesses mécanique à trois arbres selon l'invention cette boîte de vitesses comprend un arbre primaire l qui entraîne soit un premier arbre secondaire 2, soit un deuxième arbre secondaire 3. L' arbre primaire 1 et les deux arbres secondaires 2 et 3 sont montés avec le différentiel 29 sont montés d' une part dans un carter d' embrayage 24, et d'autre part dans un carter de mécanisme 25. Le carter d' embrayage 24 est monté directement sur le moteur, et il reçoit le carter de mécanisme 25 qui vient se fixer sur ledit carter d' embrayage 24. Chacun des arbres primaire 1 sesondaire 2 et 3 et le différentiel 29 sont disposés d'une manière connue en soie au moyen de roulements dans ces carters.We see in Figure 1 the assembly of a mechanical gearbox with three shafts according to the invention this gearbox comprises a primary shaft l which drives either a first secondary shaft 2, or a second secondary shaft 3. L ' primary shaft 1 and the two secondary shafts 2 and 3 are mounted with the differential 29 are mounted on the one hand in a clutch housing 24, and on the other hand in a mechanism housing 25. The clutch housing 24 is mounted directly on the engine, and it receives the mechanism housing 25 which is fixed on said clutch housing 24. Each of the primary shafts 1 sesondary 2 and 3 and the differential 29 are arranged in a known manner in silk by means bearings in these housings.

L' arbre primaire 1 porte le pignon 5 de première vitesse et le pignon 6 de deuxième vitesse. Un ensemble de pignon 7 de troisième vitesse et 8 de quatrième vitesse sont associés 1' un avec 1' autre dans un pignon double, et ce dernier ensemble est monté sur l' arbre primaire 1. Cet ensemble de pignon 7 et 8 est solidaire avec 1' arbre primaire 1 au moyen de la denture d' un pignon 9 de marche arrière qui est usiné directement dans ledit arbre primaire 1. The primary shaft 1 carries the pinion 5 of first speed and the pinion 6 of second speed. A pinion set 7 of third speed and 8 of fourth speed are associated with one another in a double pinion, and the latter set is mounted on the primary shaft 1. This pinion set 7 and 8 is integral with 1 primary shaft 1 by means of the teeth of a reverse gear 9 which is machined directly in said primary shaft 1.

Le premier arbre secondaire 2 porte un pignon fou 10 de première vitesse, un pignon fou 11 de deuxième vitesse, un pignon fou 12 de cinquième vitesse, et un pignon fou 13 de marche arrière. Ces pignons 10, 11, 12 et 13 sont montés au moyen d'aiguilles sur le premier arbre secondaire 2. Ce premier arbre secondaire 2 comporte à son extrémité, immédiatement après le pignon fou 13 de marche arrière, un pignon de sortie de mouvement appelé pignon de descente 18. Un synchroniseur double 26 est disposé sur le premier arbre primaire 2 entre le pignon fou 10 de première et le pignon fou 11 de deuxième. Un autre synchroniseur double 28 est disposé entre le pignon fou 12 de cinquième et le pignon fou 13 de marche arrière.The first secondary shaft 2 carries a idler gear 10 of first speed, an idler gear 11 of second speed, an idler gear 12 of fifth gear, and an idler gear 13 of reverse gear. These pinions 10, 11, 12 and 13 are mounted by means of needles on the first secondary shaft 2. This first secondary shaft 2 has at its end, immediately after the idler gear 13 of reverse gear, a movement output gear called lowering pinion 18. A double synchronizer 26 is arranged on the first primary shaft 2 between the idler gear 10 of the first and the idler gear 11 of the second. Another double synchronizer 28 is arranged between the idler gear 12 of the fifth gear and the idler gear 13 of reverse gear.

Le deuxième arbre secondaire comporte un pignon fou 14 de troisième vitesse et un pignon fou 15 de quatrième vitesse. Ces pignons foux 14 et 15 sont montés sur le deuxième arbre secondaire 3 au moyen d' aiguilles selon un dispositif connu en soi. Un pignon de sortie de mouvements appelé pignon de descente 19 est disposé sur le deuxième arbre secondaire 3. Ce pignon de descente 19 se trouve immédiatement après le pignon fou de troisième 14. Un synchroniseur double 27 est placé entre le pignon fou 14 de troisième vitesse et le pignon fou 15 de quatrième vitesse.The second secondary shaft has a third gear idler 14 and a fourth idler gear 15. These idler gears 14 and 15 are mounted on the second secondary shaft 3 by means of needles according to a device known per se. A movement output pinion called the descent pinion 19 is disposed on the second secondary shaft 3. This descent pinion 19 is located immediately after the idler gear of the third gear 14. A double synchronizer 27 is placed between the idler gear 14 of the third gear and the idler gear 15 of fourth gear.

Le pignon de descente 18 du premier arbre secondaire 2 engraine avec la couronne 20 du différentiel 29. De la même manière le pignon de descente 19 du deuxième arbre secondaire 3 engraine avec la couronne 20 du différentiel 29. On peut voir sur la figure 2 la disposition des différents axes de l'arbre primaire 1, des deux arbres secondaires 2 et 3 et de l'axe 4 du différentiel 29. La couronne 20 du différentiel 29 est monté sur le boîtier 21, et le mouvement est envoyé aux roues par les sorties de transmission 22 et 23.The descent pinion 18 of the first secondary shaft 2 engages with the crown 20 of the differential 29. In the same way the descent pinion 19 of the second secondary shaft 3 engages with the crown 20 of the differential 29. We can see in Figure 2 the arrangement of the different axes of the primary shaft 1, of the two secondary shafts 2 and 3 and of the axis 4 of the differential 29. The crown 20 of the differential 29 is mounted on the housing 21, and the movement is sent to the wheels by the transmission outputs 22 and 23.

On voit sur les figures 2 et 3 . le dispositif de marche arrière. Ce dispositif comprend un axe intermédiaire de marche arrière 17 qui est monté en porte à faux dans le carter d'embrayage 24. Cet axe intermédiaire 17 porte un pignon intermédiaire 16 de marche arrière, qui est monté fou sur 1' arbre 17 au moyen d' aiguilles. We see in Figures 2 and 3. the reverse gear. This device comprises an intermediate reverse gear axis 17 which is cantilevered in the clutch housing 24. This intermediate axis 17 carries an intermediate reverse gear 16, which is mounted idly on the shaft 17 by means of 'needles.

La boîte de vitesses selon l'invention est telle que le pignon fou 15 de quatrième vitesse du deuxième arbre secondaire 3, et que le pignon fou 12 de cinquième vitesse du premier arbre secondaire 2 sont entraînés 1' un et l'autre par le même pignon 8 de l'arbre primaire 1.The gearbox according to the invention is such that the idler gear 15 of fourth speed of the second secondary shaft 3, and that the idler gear 12 of fifth speed of the first secondary shaft 2 are driven 1 'and the other by the same pinion 8 of the primary shaft 1.

De plus la structure selon l'invention et la disposition des axes de 1' arbre primaire 1 et des arbres secondaires 2 et 3 ainsi que de 1' axe 4 du différentiel 29 permettent d' avoir un pignon de descente 19 du deuxième arbre secondaire 3, qui soit identique au pignon de descente 18 du premier arbre secondaire.In addition, the structure according to the invention and the arrangement of the axes of the primary shaft 1 and of the secondary shafts 2 and 3 as well as of the axis 4 of the differential 29 make it possible to have a lowering pinion 19 of the second secondary shaft 3 , which is identical to the descent pinion 18 of the first secondary shaft.

La structure selon l'invention est particulièrement intéressante parce que elle prévoit que le pignon de troisième vitesse 7 de l' arbre primaire 1 soit disposé entre la denture du pignon fou 13 de marche arrière du premier arbre secondaire 2, et le synchroniseur double 28 de cinquième vitesse et de marche arrière. Cette disposition permet en effet d' obtenir un encombrement axial le plus réduit possible, et permet d' autre part d' avoir une marche arrière synchronisée.The structure according to the invention is particularly advantageous because it provides that the third speed pinion 7 of the primary shaft 1 is disposed between the teeth of the idler gear 13 of reverse of the first secondary shaft 2, and the double synchronizer 28 of fifth gear and reverse gear. This arrangement makes it possible to obtain the smallest possible axial size, and on the other hand allows to have a synchronized reverse gear.

De plus la structure de boîte de vitesses selon l'invention permet d' obtenir avec les mêmes entr' axes entre l' arbre primaire 1 et les deux arbres secondaires 2 et 3, une ouverture entre les vitesses quatrième et cinquième qui peut varier de 1, 15 à 1, 35 en jouant sur les modules de denture à entr' axes constants. Ceci permet d' obtenir à partir d' une même structure de carter, des étagements de boîtes différentes. In addition, the gearbox structure according to the invention makes it possible to obtain, with the same axes between the primary shaft 1 and the two secondary shafts 2 and 3, an opening between the fourth and fifth gears which can vary from 1 , 15 to 1, 35 by playing on the toothing modules with constant axes. This makes it possible to obtain, from the same casing structure, staggerings of different boxes.

Claims (4)

REVENDICATIONS 1. Boîte de vitesses mécanique à un arbre primaire (1) et à deux arbres secondaires (2) et (3) caractérisée en ce que - le premier arbre secondaire (2) comporte les pignons foux de première1. Mechanical gearbox with a primary shaft (1) and two secondary shafts (2) and (3) characterized in that - the first secondary shaft (2) comprises the idler gears of the first (10), de deuxième (Il), de cinquième (12) et de marche arrière (13) (10), second (II), fifth (12) and reverse (13) avec un synchroniseur double (26) disposé entre les pignons de première with a double synchronizer (26) arranged between the first pinions (10) et de deuxième (11), et un synchroniseur double (28) disposé entre (10) and second (11), and a double synchronizer (28) disposed between les pignons de cinquième (12) et de marche arrière (13) ; - le deuxième arbre secondaire (13) comporte les pignons foux de the fifth (12) and reverse (13) gears; - the second secondary shaft (13) has idler gears troisième (14) et de quatrième (15) avec un sunchroniseur double (27) third (14) and fourth (15) with a double sunchroniser (27) disposé entre les pignons de troisième (14) et de quatrième (15);; - le pignon de troisième (7) de l' arbre primaire (1) étant disposé entre la disposed between the third (14) and fourth (15) pinions; - the third gear (7) of the primary shaft (1) being disposed between the denture du pignon fou (13) de marche arrière du premier arbre back sprocket toothing (13) of the first shaft secondaire (2), et le synchroniseur double (28) de cinquième et de secondary (2), and the dual synchronizer (28) of fifth and marche arrière. reverse. 2. Boîte de vitesses selon la revendication 1, caractérisée en ce que le pignon fou de quatrième (15) du deuxième arbre secondaire (3) et le pignon fou de cinquième (12) du premier arbre secondaire (2) sont entraînés 1' un et 1' autre par le me me pignon (8) de 1' arbre primaire (1).2. Gearbox according to claim 1, characterized in that the fourth idler gear (15) of the second secondary shaft (3) and the fifth idler gear (12) of the first secondary shaft (2) are driven 1 'a and the other by the pinion (8) of the primary shaft (1). 3. Boîte de vitesses selon l' une quelconque des revendications précédentes, caractérisée en ce que le pignon de descente (19) du deuxième arbre secondaire (3) est identique au pignon de descente (18) du premier arbre secondaire (2).3. Gearbox according to any one of the preceding claims, characterized in that the lowering pinion (19) of the second secondary shaft (3) is identical to the lowering pinion (18) of the first secondary shaft (2). 4. Boîte de vitesses selon 1' une des revendications précédentes, caractérisée en ce que le pignon intermédiaire (16) de marche arrière est monté sur un axe intermédiaire (17) ; ledit axe (17) étant solidaire du carter d' embrayage (24), et monté en porte à faux dans ledit carter d'embrayage (24). 4. Gearbox according to one of the preceding claims, characterized in that the intermediate gear (16) of reverse gear is mounted on an intermediate axis (17); said pin (17) being integral with the clutch housing (24), and mounted cantilevered in said clutch housing (24).
FR8515852A 1985-10-25 1985-10-25 MECHANICAL GEARBOX WITH A PRIMARY SHAFT AND TWO SECONDARY SHAFTS Expired FR2589214B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR8515852A FR2589214B1 (en) 1985-10-25 1985-10-25 MECHANICAL GEARBOX WITH A PRIMARY SHAFT AND TWO SECONDARY SHAFTS
FR8614434A FR2605377B2 (en) 1985-10-25 1986-10-17 MECHANICAL GEARBOX WITH A PRIMARY SHAFT AND TWO SECONDARY SHAFTS
AT86402390T ATE44308T1 (en) 1985-10-25 1986-10-24 GEAR TRANSMISSION WITH ONE DRIVE SHAFT AND TWO COUNTER SHAFT.
ES86402390T ES2010665B3 (en) 1985-10-25 1986-10-24 MECHANICAL GEARBOX WITH ONE PRIMARY TREE AND TWO SECONDARY TREES,
CA000521406A CA1314414C (en) 1985-10-25 1986-10-24 Transmission gearbox with one transmission input shaft and two output shafts
EP86402390A EP0224407B1 (en) 1985-10-25 1986-10-24 Gear transmission with one input shaft and two counter shafts
US06/922,743 US4802373A (en) 1985-10-25 1986-10-24 Manual transmission with one primary shaft and two secondary shafts
DE8686402390T DE3664152D1 (en) 1985-10-25 1986-10-24 Gear transmission with one input shaft and two counter shafts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8515852A FR2589214B1 (en) 1985-10-25 1985-10-25 MECHANICAL GEARBOX WITH A PRIMARY SHAFT AND TWO SECONDARY SHAFTS

Publications (2)

Publication Number Publication Date
FR2589214A1 true FR2589214A1 (en) 1987-04-30
FR2589214B1 FR2589214B1 (en) 1987-12-11

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Application Number Title Priority Date Filing Date
FR8515852A Expired FR2589214B1 (en) 1985-10-25 1985-10-25 MECHANICAL GEARBOX WITH A PRIMARY SHAFT AND TWO SECONDARY SHAFTS

Country Status (1)

Country Link
FR (1) FR2589214B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040060A1 (en) * 2004-10-13 2006-04-20 Daimlerchrysler Ag Double clutch gearbox

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2291054A1 (en) * 1974-11-15 1976-06-11 Peugeot & Renault Gear box for transverse engine - reduces congestion around gearbox output shaft
EP0046373A1 (en) * 1980-08-14 1982-02-24 Automotive Products Public Limited Company Rotary transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2291054A1 (en) * 1974-11-15 1976-06-11 Peugeot & Renault Gear box for transverse engine - reduces congestion around gearbox output shaft
EP0046373A1 (en) * 1980-08-14 1982-02-24 Automotive Products Public Limited Company Rotary transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040060A1 (en) * 2004-10-13 2006-04-20 Daimlerchrysler Ag Double clutch gearbox

Also Published As

Publication number Publication date
FR2589214B1 (en) 1987-12-11

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