EP0921307A1 - Démarreur de véhicule automobile à réducteur à engrenages comportant un dispositif limiteur d'à-coups - Google Patents
Démarreur de véhicule automobile à réducteur à engrenages comportant un dispositif limiteur d'à-coups Download PDFInfo
- Publication number
- EP0921307A1 EP0921307A1 EP98402013A EP98402013A EP0921307A1 EP 0921307 A1 EP0921307 A1 EP 0921307A1 EP 98402013 A EP98402013 A EP 98402013A EP 98402013 A EP98402013 A EP 98402013A EP 0921307 A1 EP0921307 A1 EP 0921307A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crown
- skirt
- starter
- starter according
- rotation
- 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
Links
- 239000007858 starting material Substances 0.000 title claims abstract description 30
- 230000004308 accommodation Effects 0.000 claims 1
- 230000003100 immobilizing effect Effects 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
- F02N15/046—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer of the planetary type
Definitions
- the present invention relates to a starter for motor vehicle.
- the invention relates more particularly to a starter of the type comprising an electric motor of which the output shaft rotates a coaxial launcher with interposition of a gear reducer, in particular of the type with planetary gear.
- the friction device includes a annular friction disc which is linked in rotation to the crown and which is in axial support against the internal face of one of the flanges of the case against which the friction disc is stressed axially by a frustoconical elastic washer.
- This design therefore requires at least two additional components, compared to a train epicyclic without torque limiting device, i.e. the friction washer and elastic frustoconical washer.
- the object of the invention is to propose a new design of a starter of the type mentioned previously which remedies the disadvantages which have just been mentioned.
- the invention provides a starter for motor vehicle of the type comprising a housing in which is arranged an electric motor whose output shaft drives in rotation a coaxial launcher with the interposition of a reducer having an internally toothed crown which is mounted in a housing cavity in which it is immobilized in rotation and which comprises an annular skirt cylindrical toothed internally closed at one of its axial ends by a radial wall pierced at its center for the passage of a gearbox output shaft, the crown toothed comprising an elastically deformable zone in twist which is arranged at one of the axial ends of the internally toothed skirt to intervene between the latter and an adjacent part of the crown comprising means for immobilizing the crown in rotation in its cavity, characterized in that the deformable zone elastically consists of a series of link arms elastically deformable, of substantially axial orientation, which connect the axial end of the toothed skirt to the part adjacent to the ring gear comprising the means immobilization in rotation.
- Part 1 of a motor vehicle starter 10 of the type comprising a electric motor 12, the rotor 14 of which is mounted rotating, around an axis X-X inside a rear part 16 of the starter housing which is completed by a front part 18 hood-shaped.
- the upper part (not shown in detail) of the starter 10 includes an electromagnetic contactor which, by means of a fork 20 in the form of a fork, acts known manner on a launcher 22 which is slidably mounted on a starter shaft 24 coaxial with the output shaft 26 of the engine electric 12.
- the output shaft 26 of the electric motor 12, linked at rotation to rotor 14, projects axially forward beyond of the front face 28 of the stator 30 and it rotates a pinion 32 which is the sun pinion of a planetary gear train 34 which constitutes a gear reducer interposed between the shaft 26 and the starter shaft 24.
- the sun gear 32 cooperates with the pinions planetary gear planets 34 which are rotatably mounted around axes 38 which are carried by a radial plate 40 planet carrier which is linked in rotation to the output shaft 42 of the reducer 34 which is a hollow shaft inside which is received the rear splined end (not shown) of the shaft launcher 24 for the rotational drive of the latter by the output shaft 42.
- the planetary gear 34 also includes a crown 44 internally toothed inside which mesh the satellites 36 and which is immobilized in rotation relative to the starter housing 10.
- the toothed crown 44 produced in accordance with lessons of the invention, consists essentially of by a cylindrical annular skirt 46 which is open axially at its rear end 48 and whose front end is closed by a radial wall 50 which is pierced in its center of a hole 52 in which the rotation shaft is mounted exit 42.
- the peripheral surface 56 of the skirt 46 is a cylindrical surface and the ring gear 44 is received in a complementary hollow cylindrical cavity 58 formed in the cover 18 of the starter housing 10 and which is open axially backwards to allow axial insertion, from right to left considering figure 1, from ring gear 44 in cavity 58, the latter being axially delimited by a radial shoulder 60.
- the internal cylindrical surface of the skirt 46 is toothed and it has for this purpose a series of teeth 62 which extend over the entire axial length of the internal surface toothed 61, that is to say notably substantially to the bottom of the ring gear 44 formed by the internal radial face 64 of the wall 50.
- the front axial end portion of the skirt 46 comprises a series of recesses 70 distributed angularly from evenly around the X-X axis of the ring gear 44.
- the recesses 70 which pass radially through in part the thickness of the material constituting the skirt 46, define between them as many link arms 72 each of which extends axially to connect the skirt 46 to the radial wall of background 50.
- the set of arms 72 constitutes the zone 66 elastically deformable in torsion, i.e. their elastic deformation allows, by transverse bending arms 72, to generally rotate the skirt 46 by relative to the wall 50.
- the ring gear 44 is linked in rotation to the housing 10 by a series of lugs 74, here three in number, of which each extends axially forward from the face external radial 76 of the wall 50.
- each lug 74 is in the extension of the external cylindrical face 56 of the skirt 46 and each lug 74 is received in a housing complementary formed in the bottom shoulder 60 of the cavity 58.
- each recess 70 extends axially towards the rear in the bottom wall 50 to open into the front radial face 76 of the latter, the recess being delimited radially towards the interior by an interior edge 75.
- the toothed skirt 46 can rotate relative to the wall 50 and therefore relative to the housing.
- the starter 10 thus comprises elastic damping means in twist arranged at the gear reducer 34 which do not use any additional components compared to a starter fitted with a conventional planetary gear, only the gear crown design being changed in accordance with the teachings of the invention.
- the invention is not limited to the case of a reduction gear with planetary gear but also found to apply in other case, for example when the reduction gear 34 is a gear offset gears with a ring gear internally.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Retarders (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
- les bras de liaison sont répartis angulairement de manière régulière autour de l'axe de la couronne ;
- deux bras de liaison adjacents sont séparés par un évidement formé au moins en partie dans l'épaisseur radiale d'une portion d'extrémité axiale de la jupe dentée intérieurement ;
- l'évidement traverse radialement la portion d'extrémité axiale de la jupe dentée intérieurement :
- la zone déformable élastiquement est agencée à l'extrémité axiale de la jupe dentée intérieurement qui est fermée par la paroi radiale ;
- l'évidement s'étend axialement dans la paroi radiale ;
- les moyens d'immobilisation en rotation de la couronne dentée dans sa cavité comporte au moins un ergot porté par la couronne qui est reçu dans un logement complémentaire du boítier ;
- l'ergot s'étend axialement à partir de la face externe de la cloison radiale de la couronne ;
- le réducteur est du type à train épicycloïdal.
- La figure 1 est une vue en section axiale partielle du moteur électrique d'un démarreur associé à son train épicycloïdal comportant un dispositif limiteur de couple réalisé conformément aux enseignements de l'invention ;
- la figure 2 est une vue en section axiale et à plus grande échelle de la couronne dentée du réducteur à engrenages du démarreur de la figure 1 ; et
- la figure 3 est une vue en perspective de la couronne dentée de la figure 2.
Claims (9)
- Démarreur (10) de véhicule automobile du type comportant un boítier (18) dans lequel est agencé un moteur électrique (12) dont l'arbre de sortie (26) entraíne en rotation un lanceur coaxial (22) avec interposition d'un réducteur (34) comportant une couronne (44), dentée intérieurement, qui est montée dans une cavité (58) du boítier dans laquelle elle est immobilisée en rotation et qui comporte une jupe annulaire cylindrique (46) dentée intérieurement et fermée à l'une de ses extrémités axiales par une paroi radiale (50) percée en son centre pour le passage d'un arbre de sortie (42) du réducteur, la couronne dentée (44) comportant une zone (66) déformable élastiquement en torsion qui est agencée à l'une des extrémités axiales de la jupe dentée intérieurement (46) pour intervenir entre cette dernière et une partie adjacente de la couronne comportant des moyens (74) pour l'immobilisation en rotation de la couronne (44) dans sa cavité (58), caractérisé en ce que la zone déformable élastiquement est constituée par une série de bras (72) de liaison déformables élastiquement, d'orientation sensiblement axiale, qui relient l'extrémité axiale de la jupe dentée (46) à la partie adjacente (50) de la couronne dentée (44) comportant les moyens (74) d'immobilisation en rotation.
- Démarreur selon la revendication 1, caractérisé en ce que les bras de liaison (72) sont répartis angulairement de manière régulière autour de l'axe (X-X) de la couronne.
- Démarreur selon la revendication 2, caractérisé en ce que deux bras de liaison adjacents (72) sont séparés par un évidement (70) formé au moins en partie dans l'épaisseur radiale d'une portion d'extrémité axiale de la jupe (46) dentée intérieurement.
- Démarreur selon la revendication 3, caractérisé en ce que ledit évidement traverse radialement la portion d'extrémité axiale de la jupe dentée intérieurement.
- Démarreur selon l'une quelconque des revendications précédentes, caractérisé en ce que la zone déformable élastiquement (66, 70, 72) est agencée à l'extrémité axiale de la jupe dentée intérieurement qui est fermée par la paroi radiale (50).
- Démarreur selon la revendication 5 prise en combinaison avec l'une des revendications 3 ou 4, caractérisé en ce que ledit évidement (70) s'étend axialement dans la paroi radiale (50).
- Démarreur selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens d'immobilisation en rotation de la couronne dentée dans sa cavité comporte au moins un ergot (74) porté par la couronne (44) qui est reçu dans un logement complémentaire (60) du boítier.
- Démarreur selon la revendication 7, caractérisé en ce que l'ergot (74) s'étend axialement à partir de la face externe (76) de la cloison radiale (50) de la couronne (44).
- Démarreur selon l'une quelconque des revendications précédentes, caractérisé en ce que le réducteur (34) est du type à train épicycloïdal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9710310 | 1997-08-11 | ||
| FR9710310A FR2767157B1 (fr) | 1997-08-11 | 1997-08-11 | Demarreur de vehicule automobile a reducteur a engrenages comportant un dispositif limiteur d'a-coups |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0921307A1 true EP0921307A1 (fr) | 1999-06-09 |
| EP0921307B1 EP0921307B1 (fr) | 2003-02-05 |
Family
ID=9510263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19980402013 Expired - Lifetime EP0921307B1 (fr) | 1997-08-11 | 1998-08-06 | Démarreur de véhicule automobile à réducteur à engrenages comportant un dispositif limiteur d'à-coups |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0921307B1 (fr) |
| DE (1) | DE69811191T2 (fr) |
| ES (1) | ES2192753T3 (fr) |
| FR (1) | FR2767157B1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10214278A1 (de) * | 2002-03-28 | 2003-10-16 | Bosch Gmbh Robert | Startvorrichtung |
| FR2910074A1 (fr) * | 2006-12-14 | 2008-06-20 | Valeo Equip Electr Moteur | Dispositif de demarrage pour moteur thermique, notamment de vehicule automobile |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2796989B1 (fr) * | 1999-07-30 | 2001-09-14 | Valeo Equip Electr Moteur | Demarreur de vehicule automobile a arbre de sortie simplifie |
| US20030177852A1 (en) * | 2002-03-22 | 2003-09-25 | Young-Il Kim | Apparatus for absorbing impact of starter |
| FR2863016B1 (fr) | 2003-11-28 | 2007-11-16 | Valeo Equip Electr Moteur | Demarreur de vehicule automobile equipe de moyens de centrage du reducteur et de culasse sur le boitier |
| FR2863017B1 (fr) | 2003-11-28 | 2007-12-21 | Valeo Equip Electr Moteur | Demarreur de vehicule automobile a reducteur comportant des moyens d'articulation du levier de commande |
| DE102010003431B4 (de) * | 2010-03-30 | 2019-05-16 | Seg Automotive Germany Gmbh | Startvorrichtung mit Hohlrad- und Zwischenlagerdämpfung |
| DE102014200727B4 (de) | 2014-01-16 | 2016-11-17 | Schaeffler Technologies AG & Co. KG | Anlasservorrichtung für ein Fahrzeug sowie Fahrzeug mit der Anlasservorrichtung |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111059A (ja) * | 1983-11-18 | 1985-06-17 | Hitachi Ltd | 内燃機関用スタ−タ |
| US4590811A (en) * | 1983-05-31 | 1986-05-27 | Hitachi, Ltd. | Reduction starter |
| EP0238872A2 (fr) * | 1986-02-24 | 1987-09-30 | Mitsubishi Denki Kabushiki Kaisha | Démarreur réducteur de vitesse du type transmission planétaire |
| US4776224A (en) * | 1984-10-24 | 1988-10-11 | Hitachi, Ltd. | Planetary gear type reduction starter |
| JPH0571452A (ja) * | 1991-09-11 | 1993-03-23 | Hitachi Ltd | スタ−タ |
| JPH0678495A (ja) * | 1992-07-09 | 1994-03-18 | Nippondenso Co Ltd | 衝撃トルク吸収装置 |
-
1997
- 1997-08-11 FR FR9710310A patent/FR2767157B1/fr not_active Expired - Lifetime
-
1998
- 1998-08-06 EP EP19980402013 patent/EP0921307B1/fr not_active Expired - Lifetime
- 1998-08-06 ES ES98402013T patent/ES2192753T3/es not_active Expired - Lifetime
- 1998-08-06 DE DE1998611191 patent/DE69811191T2/de not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4590811A (en) * | 1983-05-31 | 1986-05-27 | Hitachi, Ltd. | Reduction starter |
| JPS60111059A (ja) * | 1983-11-18 | 1985-06-17 | Hitachi Ltd | 内燃機関用スタ−タ |
| US4776224A (en) * | 1984-10-24 | 1988-10-11 | Hitachi, Ltd. | Planetary gear type reduction starter |
| EP0238872A2 (fr) * | 1986-02-24 | 1987-09-30 | Mitsubishi Denki Kabushiki Kaisha | Démarreur réducteur de vitesse du type transmission planétaire |
| JPH0571452A (ja) * | 1991-09-11 | 1993-03-23 | Hitachi Ltd | スタ−タ |
| JPH0678495A (ja) * | 1992-07-09 | 1994-03-18 | Nippondenso Co Ltd | 衝撃トルク吸収装置 |
Non-Patent Citations (3)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 009, no. 264 (M - 423) 22 October 1985 (1985-10-22) * |
| PATENT ABSTRACTS OF JAPAN vol. 017, no. 392 (M - 1450) 22 July 1993 (1993-07-22) * |
| PATENT ABSTRACTS OF JAPAN vol. 018, no. 332 (E - 1567) 23 June 1994 (1994-06-23) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10214278A1 (de) * | 2002-03-28 | 2003-10-16 | Bosch Gmbh Robert | Startvorrichtung |
| FR2910074A1 (fr) * | 2006-12-14 | 2008-06-20 | Valeo Equip Electr Moteur | Dispositif de demarrage pour moteur thermique, notamment de vehicule automobile |
| WO2008071896A3 (fr) * | 2006-12-14 | 2008-11-13 | Valeo Equip Electr Moteur | Dispositif de demarrage pour moteur thermique, notamment de vehicule automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2767157A1 (fr) | 1999-02-12 |
| DE69811191D1 (de) | 2003-03-13 |
| ES2192753T3 (es) | 2003-10-16 |
| EP0921307B1 (fr) | 2003-02-05 |
| FR2767157B1 (fr) | 1999-09-10 |
| DE69811191T2 (de) | 2003-09-11 |
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