EP0552081B1 - Abutment device for starter pinion shifting arrangement for an internal combustion engine - Google Patents

Abutment device for starter pinion shifting arrangement for an internal combustion engine Download PDF

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Publication number
EP0552081B1
EP0552081B1 EP93400044A EP93400044A EP0552081B1 EP 0552081 B1 EP0552081 B1 EP 0552081B1 EP 93400044 A EP93400044 A EP 93400044A EP 93400044 A EP93400044 A EP 93400044A EP 0552081 B1 EP0552081 B1 EP 0552081B1
Authority
EP
European Patent Office
Prior art keywords
starter
starter pinion
motor shaft
bore
launcher
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.)
Expired - Lifetime
Application number
EP93400044A
Other languages
German (de)
French (fr)
Other versions
EP0552081A1 (en
Inventor
André Demoule
Hugues Pawlik
Christian Mornieux
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
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Filing date
Publication date
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Publication of EP0552081A1 publication Critical patent/EP0552081A1/en
Application granted granted Critical
Publication of EP0552081B1 publication Critical patent/EP0552081B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/062—Starter drives
    • F02N15/065—Starter drives with blocking means
    • 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
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N2015/061—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement said axial displacement being limited, e.g. by using a stopper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S403/00—Joints and connections
    • Y10S403/07—Split ring stop or abutment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/13—Machine starters
    • Y10T74/131—Automatic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/13—Machine starters
    • Y10T74/131—Automatic
    • Y10T74/132—Separate power mesher

Definitions

  • the present invention relates to a starter launcher stop device for an internal combustion engine.
  • a starter launcher consists of a starter pinion which can move axially on a drive shaft until it engages with a ring gear located on the flywheel.
  • the starter pinion is associated with a free wheel and a drive bush made integral by an assembly cover.
  • the drive sleeve has at one of its ends helical grooves intended to cooperate with helical grooves formed on the motor shaft so as to make the assembly of the launcher rotationally integral with respect to said motor shaft.
  • a stop device generally consisting of a ring attached to the end of the motor shaft on the ring gear side cooperating with the end of the launcher pinion in the working position, that is to say in the position where the starter gear is engaged with the ring gear.
  • a configuration of this type, as illustrated in document FR-A-2 622 641 requires a portion of the driving shaft projecting relative to the starter pinion, or even relative to the casing of the starter assembly, which makes it difficult and costly. effective protection of said motor shaft portion against various mechanical attacks resulting from the environment in which the starter must operate.
  • a stop device incorporated in the launcher is used, this device being formed by the cooperation of the ends of the helical splines formed on the drive sleeve of the launcher and the motor shaft.
  • the launcher is no longer a simple assembly that is reported on A motor shaft whose rear part is pre-equipped in particular with the armature of the electric starter motor. Indeed, it is then necessary to introduce through said rear part the starter drive bushing, to produce the armature of the electric motor and then to finish assembling the different components of the starter in situ.
  • a starter launcher for an internal combustion engine comprising a stop device comprising in particular a motor shaft, on which a starter pinion which can be secured to a free wheel and a bushing d driven by a cover, the starter pinion having over its entire length a bore inside which the motor shaft moves, characterized in that said stop device consists of a ring and a ring d 'stop embedded in a semi-cylindrical groove formed in the bore, said stop ring cooperating with the ring fixed on the end of the motor shaft.
  • a starter launcher consists of a starter pinion 10, one of the ends 12 of which comprises a toothed ring 12 intended to mesh with a toothed ring located on the flywheel (not shown).
  • This toothed ring 12 is extended by a cylindrical portion 14, the end opposite to the toothed ring 12 constitutes the track 16 of a free wheel 18 made up in particular of loaded rollers 20.
  • the cage of the free wheel 18 is constituted by one end 22 of the drive sleeve 24.
  • a cover 26 is crimped on the periphery of the end 22 so as to make the starter pinion 10, the drive bush 24 and the freewheel 18 integral. As is well known, the cover 26 maintains two half-washers 28 , 29 ensuring the closing and sealing of the freewheel 18.
  • the entire launcher is guided in rotation by a ball bearing 30 housed in one end 32 of the starter casing.
  • the launcher is slidably mounted relative to a motor shaft 34 so as to be able to move from a rest position, represented in FIG. 1, to a working position, represented in FIG. 2, in which the pinion launcher 10 is meshed with the ring gear (not shown) located on the flywheel, the translational movement being effected in a manner known per se by the pivoting of a lever 36.
  • the drive shaft 34 includes a first cylindrical seat 38 which is received in a central bore 40 of the starter pinion 10.
  • Bushings 42, 43 allow the starter pinion 10 to slide and journal on the motor shaft 34.
  • the motor shaft 34 Adjacent to the first cylindrical bearing surface 38, the motor shaft 34 comprises a second cylindrical bearing surface 44 of larger diameter at the outer periphery of which are formed helical grooves 46 intended to cooperate with helical grooves 48 formed in a bore located on the rear part of the drive sleeve 18.
  • the front end of the ring gear 12 of the starter pinion 10 is extended by a cylindrical barrel 50 having a groove 52 (see FIG. 3) into which a closure plug 54 is clipped which closes the central bore 40 and thus ensures the protection, in particular of the motor shaft 34 against any external mechanical attack.
  • the front end of the motor shaft 34 is extended by a threaded end 56, onto which is screwed a ring 58 having on its rear part a cylindrical portion 60 of the same diameter as the first cylindrical seat 38 of the motor shaft 34 and on its front part a cylindrical flange 62 whose outside diameter is equal to the diameter of the bore 40 of the starter pinion 10.
  • the stop ring 66 slides on the first cylindrical seat 38 of the 'engine shaft 34 until it comes into contact with the cylindrical flange 62 which the ring 58 has.
  • the stop ring 66 and the ring 58 constitute the starter stop device, a device which is located under the starter pinion 10 which allows the motor shaft 34 not to be protruding and therefore to be protected regardless of the position of the launcher.
  • means for circulating the air contained in the zone 68 are provided.
  • These means consist of longitudinal grooves 70 formed at the periphery of the flange 62 of the ring 58 making it possible to put the zone 68 in communication with longitudinal grooves 72 formed in the bore 40 in line with the cylindrical portion 14 of the starter pinion 10 and emerging at the back of it.
  • the air which is expelled from the zone 68 is finally evacuated by the helical splines 46 of the motor shaft 34.
  • the ring 58 could be made integral in translation with the drive shaft 34 by a stop ring.
  • said ring 58 could be constituted by a screw having the same shape, the drive shaft 34 being provided at its end with a tapped hole.

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  • 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)

Description

La présente invention concerne un dispositif de butée de lanceur de démarreur pour moteur à combustion interne.The present invention relates to a starter launcher stop device for an internal combustion engine.

Un lanceur de démarreur est constitué d'un pignon lanceur pouvant se déplacer axialement sur un arbre moteur jusqu'à son entrée en prise avec une couronne dentée située sur le volant moteur. Au pignon lanceur sont associées une roue libre et une douille d'entraînement rendues solidaires par un capot d'assemblage. La douille d'entraînement comporte à l'une de ses extrémités des cannelures hélicoïdales destinées à coopérer avec des cannelures hélicoïdales ménagées sur l'arbre moteur de manière à rendre solidaire en rotation l'ensemble du lanceur par rapport audit arbre moteur.A starter launcher consists of a starter pinion which can move axially on a drive shaft until it engages with a ring gear located on the flywheel. The starter pinion is associated with a free wheel and a drive bush made integral by an assembly cover. The drive sleeve has at one of its ends helical grooves intended to cooperate with helical grooves formed on the motor shaft so as to make the assembly of the launcher rotationally integral with respect to said motor shaft.

Le déplacement axial du lanceur est limité par un dispositif de butée constitué généralement d'une bague rapportée à l'extrémité de l'arbre moteur côté couronne dentée coopérant avec l'extrémité du pignon lanceur en position travail, c'est-à-dire dans la position où le pignon lanceur est en prise avec la couronne dentée. Une configuration de ce type, comme illustrée dans le document FR-A-2 622 641 nécessite une portion d'arbre moteur saillante par rapport au pignon lanceur, voire par rapport au carter de l'ensemble du démarreur, ce qui rend difficile et coûteuse une protection efficace de ladite portion d'arbre moteur contre les agressions mécaniques diverses résultant de l'environnement dans lequel le démarreur doit fonctionner.The axial displacement of the launcher is limited by a stop device generally consisting of a ring attached to the end of the motor shaft on the ring gear side cooperating with the end of the launcher pinion in the working position, that is to say in the position where the starter gear is engaged with the ring gear. A configuration of this type, as illustrated in document FR-A-2 622 641 requires a portion of the driving shaft projecting relative to the starter pinion, or even relative to the casing of the starter assembly, which makes it difficult and costly. effective protection of said motor shaft portion against various mechanical attacks resulting from the environment in which the starter must operate.

Pour remédier à cet inconvénient, on utilise un dispositif de butée incorporé au lanceur, ce dispositif étant constitué par la coopération des extrémités des cannelures hélicoïdales ménagées sur la douille d'entraînement du lanceur et l'arbre moteur.To overcome this drawback, a stop device incorporated in the launcher is used, this device being formed by the cooperation of the ends of the helical splines formed on the drive sleeve of the launcher and the motor shaft.

Les inconvénients d'un tel dispositif apparaissent au montage du lanceur sur l'arbre moteur.The drawbacks of such a device appear when the launcher is mounted on the motor shaft.

Le lanceur n'est plus un simple ensemble que l'on rapporte sur Un arbre moteur dont la partie arrière est prééquipée notamment de l'induit du moteur électrique du démarreur. En effet, il est alors nécessaire d'introduire par ladite partie arrière la douille d'entraînement du lanceur, de réaliser l'induit du moteur électrique puis de finir d'assembler in situ les différents composants du lanceur.The launcher is no longer a simple assembly that is reported on A motor shaft whose rear part is pre-equipped in particular with the armature of the electric starter motor. Indeed, it is then necessary to introduce through said rear part the starter drive bushing, to produce the armature of the electric motor and then to finish assembling the different components of the starter in situ.

Il en résulte une automatisation de montage pratiquement impossible à réaliser d'où un surcoût important pour l'ensemble du démarreur.This results in an assembly automation practically impossible to carry out, hence a significant additional cost for the whole starter.

Les mêmes inconvénients se retrouvent dans le dispositif de butée incorporé au lanceur illustré dans le document JP-A-63-295860.The same drawbacks are found in the stop device incorporated in the launcher illustrated in document JP-A-63-295860.

La présente invention résoud ces problèmes et propose à cet effet un lanceur de démarreur pour moteur à combustion interne comprenant un dispositif de butée comportant notamment un arbre moteur, sur lequel peut coulisser un pignon lanceur solidaire d'une roue libre et d'une douille d'entraînement par un capot, le pignon lanceur présentant sur la totalité de sa longueur un alésage à l'intérieur duquel se déplace l'arbre moteur, caractérisé en ce que ledit dispositif de butée est constitué d'une bague et d'un jonc d'arrêt encastré dans une gorge semi-cylindrique ménagée dans l'alésage, ledit jonc d'arrêt coopérant avec la bague fixée sur l'extrémité de l'arbre moteur.The present invention solves these problems and proposes for this purpose a starter launcher for an internal combustion engine comprising a stop device comprising in particular a motor shaft, on which a starter pinion which can be secured to a free wheel and a bushing d driven by a cover, the starter pinion having over its entire length a bore inside which the motor shaft moves, characterized in that said stop device consists of a ring and a ring d 'stop embedded in a semi-cylindrical groove formed in the bore, said stop ring cooperating with the ring fixed on the end of the motor shaft.

Selon d'autres caractéristiques de l'invention :

  • le lanceur de démarreur comprend un bouchon de fermeture délimitant avec la bague à l'intérieur de l'alésage une zone, des moyens de circulation de l'air contenu dans ladite zone étant prévus entre ladite zone et l'extrémité arrière du pignon lanceur,
  • les moyens de circulation comprennent des rainures longitudinales ménagées à la périphérie d'une collerette cylindrique de la bague,
  • les moyens de circulation comprennent des rainures longitudinales ménagées dans l'alésage du pignon lanceur.
According to other characteristics of the invention:
  • the starter launcher comprises a closure plug delimiting with the ring inside the bore a zone, means for circulating the air contained in said zone being provided between said zone and the rear end of the starter pinion,
  • the circulation means comprise longitudinal grooves formed at the periphery of a cylindrical collar of the ring,
  • the circulation means comprise longitudinal grooves formed in the bore of the starter pinion.

L'invention sera mieux comprise à la lecture de la description qui va suivre en regard des dessins annexés dans lesquels :

  • la figure 1 est une vue en coupe partielle d'un lanceur de démarreur en position de repos équipé du dispositif de butée selon l'invention ;
  • la figure 2 est une vue identique à la figure 1, le lanceur étant en position de travail ;
  • la figure 3 est une vue à plus grande échelle d'une partie avant du lanceur.
The invention will be better understood on reading the description which follows with reference to the appended drawings in which:
  • Figure 1 is a partial sectional view of a starter launcher in the rest position equipped with the stop device according to the invention;
  • Figure 2 is a view identical to Figure 1, the launcher being in the working position;
  • Figure 3 is an enlarged view of a front portion of the launcher.

Un lanceur de démarreur est constitué d'un pignon lanceur 10, dont l'une des extrémités 12 comporte une couronne dentée 12 destinée à engrener avec une couronne dentée située sur le volant moteur (non représentée).A starter launcher consists of a starter pinion 10, one of the ends 12 of which comprises a toothed ring 12 intended to mesh with a toothed ring located on the flywheel (not shown).

Cette couronne dentée 12 se prolonge par une portion cylindrique 14 dont l'extrémité opposée à la couronne dentée 12 constitue la piste 16 d'une roue libre 18 constituée notamment de galets chargés 20. Dans l'exemple représenté, la cage de la roue libre 18 est constituée par une extrémité 22 de la douille d'entraînement 24.This toothed ring 12 is extended by a cylindrical portion 14, the end opposite to the toothed ring 12 constitutes the track 16 of a free wheel 18 made up in particular of loaded rollers 20. In the example shown, the cage of the free wheel 18 is constituted by one end 22 of the drive sleeve 24.

Un capot 26 est serti sur la périphérie de l'extrémité 22 de manière à rendre solidaire le pignon lanceur 10, la douille d'entraînement 24 et la roue libre 18. Comme cela est bien connu, le capot 26 maintient deux demi-rondelles 28,29 assurant la fermeture et l'étanchéité de la roue libre 18.A cover 26 is crimped on the periphery of the end 22 so as to make the starter pinion 10, the drive bush 24 and the freewheel 18 integral. As is well known, the cover 26 maintains two half-washers 28 , 29 ensuring the closing and sealing of the freewheel 18.

L'ensemble du lanceur est guidé en rotation par un roulement à billes 30 logé dans une extrémité 32 de la carcasse du démarreur.The entire launcher is guided in rotation by a ball bearing 30 housed in one end 32 of the starter casing.

Bien entendu le lanceur est monté à coulissement par rapport à un arbre moteur 34 de manière à pouvoir se déplacer d'une position de repos, représentée à la figure 1, à une position de travail, représentée à la figure 2, dans laquelle le pignon lanceur 10 est engrené avec la couronne dentée (non représentée) située sur le volant moteur, le déplacement en translation s'effectuant de manière connue en soi par le pivotement d'un levier 36.Of course the launcher is slidably mounted relative to a motor shaft 34 so as to be able to move from a rest position, represented in FIG. 1, to a working position, represented in FIG. 2, in which the pinion launcher 10 is meshed with the ring gear (not shown) located on the flywheel, the translational movement being effected in a manner known per se by the pivoting of a lever 36.

A cet effet, l'arbre moteur 34 comprend une première portée cylindrique 38 venant se loger dans un alésage central 40 du pignon lanceur 10.To this end, the drive shaft 34 includes a first cylindrical seat 38 which is received in a central bore 40 of the starter pinion 10.

Des coussinets 42,43 permettent le coulissement et le tourillonnement du pignon lanceur 10 sur l'arbre moteur 34.Bushings 42, 43 allow the starter pinion 10 to slide and journal on the motor shaft 34.

Adjacente à la première portée cylindrique 38, l'arbre moteur 34 comprend une seconde portée cylindrique 44 de plus grand diamètre à la périphérie extérieure de laquelle sont ménagées des cannelures hélicoïdales 46 destinées à coopérer avec des cannelures hélicoïdales 48 ménagées dans un alésage situé sur la partie arrière de la douille d'entraînement 18.Adjacent to the first cylindrical bearing surface 38, the motor shaft 34 comprises a second cylindrical bearing surface 44 of larger diameter at the outer periphery of which are formed helical grooves 46 intended to cooperate with helical grooves 48 formed in a bore located on the rear part of the drive sleeve 18.

L'extrémité avant de la couronne dentée 12 du pignon lanceur 10 se prolonge par un fût cylindrique 50 comportant une gorge 52 (voir figure 3) dans lequel vient se clipser un bouchon de fermeture 54 qui obture l'alésage central 40 et assure ainsi la protection, notamment de l'arbre moteur 34 contre toute agression mécanique extérieure.The front end of the ring gear 12 of the starter pinion 10 is extended by a cylindrical barrel 50 having a groove 52 (see FIG. 3) into which a closure plug 54 is clipped which closes the central bore 40 and thus ensures the protection, in particular of the motor shaft 34 against any external mechanical attack.

L'extrémité avant de l'arbre moteur 34 se prolonge par un embout fileté 56, sur lequel vient se visser une bague 58 présentant sur sa partie arrière une portion cylindrique 60 de même diamètre que la première portée cylindrique 38 de l'arbre moteur 34 et sur sa partie avant une collerette cylindrique 62 dont le diamètre extérieur est égal au diamètre de l'alésage 40 du pignon lanceur 10.The front end of the motor shaft 34 is extended by a threaded end 56, onto which is screwed a ring 58 having on its rear part a cylindrical portion 60 of the same diameter as the first cylindrical seat 38 of the motor shaft 34 and on its front part a cylindrical flange 62 whose outside diameter is equal to the diameter of the bore 40 of the starter pinion 10.

Dans l'alésage 40 du pignon lanceur 10 est ménagée une gorge 64 semi-cylindrique dans lequel vient s'encastrer un jonc d'arrêt 66 qui est ainsi solidaire en translation dudit pignon lanceur.In the bore 40 of the starter pinion 10 is formed a semi-cylindrical groove 64 in which is fitted a stop ring 66 which is thus secured in translation of said starter pinion.

Lorsque le lanceur, sous l'action du levier 36, passe d'une position de repos (figure 1) jusqu'à une position de travail (figure 2), le jonc d'arrêt 66 glisse sur la première portée cylindrique 38 de l'arbre moteur 34 jusqu'à ce qu'il vienne en contact avec la collerette cylindrique 62 que présente la bague 58. Ainsi le jonc d'arrêt 66 et la bague 58 constituent le dispositif de butée du lanceur, dispositif qui se situe sous le pignon lanceur 10 ce qui permet à l'arbre moteur 34 de ne pas être saillant et donc d'être protégé quelle que soit la position du lanceur.When the launcher, under the action of the lever 36, passes from a rest position (FIG. 1) to a working position (FIG. 2), the stop ring 66 slides on the first cylindrical seat 38 of the 'engine shaft 34 until it comes into contact with the cylindrical flange 62 which the ring 58 has. Thus the stop ring 66 and the ring 58 constitute the starter stop device, a device which is located under the starter pinion 10 which allows the motor shaft 34 not to be protruding and therefore to be protected regardless of the position of the launcher.

Lorsque le lanceur passe de la position travail à la position repos, c'est-à-dire que le pignon lanceur 10 se déplace de la gauche vers la droite sur les figures, l'air contenu dans la zone 68 comprise entre le bouchon de fermeture 54 et la bague 58 est comprimé brutalement.When the launcher changes from the working position to the rest position, that is to say that the launcher pinion 10 moves from left to right in the figures, the air contained in the zone 68 between the plug closure 54 and the ring 58 is suddenly compressed.

Pour éviter que cette compression ne provoque par réaction une éjection du bouchon de fermeture 54, on ménage des moyens de circulation de l'air contenu dans la zone 68.To prevent this compression from causing a reaction to eject the closure cap 54, means for circulating the air contained in the zone 68 are provided.

Ces moyens sont constitués de rainures longitudinales 70 ménagées à la périphérie de la collerette 62 de la bague 58 permettant de mettre en communication la zone 68 avec des rainures longitudinales 72 ménagées dans l'alésage 40 au droit de la portion cylindrique 14 du pignon lanceur 10 et débouchant à l'arrière de celui-ci. L'air qui est chassé de la zone 68 est finalement évacué par les cannelures hélicoïdales 46 de l'arbre moteur 34.These means consist of longitudinal grooves 70 formed at the periphery of the flange 62 of the ring 58 making it possible to put the zone 68 in communication with longitudinal grooves 72 formed in the bore 40 in line with the cylindrical portion 14 of the starter pinion 10 and emerging at the back of it. The air which is expelled from the zone 68 is finally evacuated by the helical splines 46 of the motor shaft 34.

La présente invention ne se limite pas aux formes de réalisation décrites et représentées, mais englobe toute variante que l'homme de l'art pourrait y apporter.The present invention is not limited to the embodiments described and shown, but encompasses any variant that a person skilled in the art could make.

En particulier, la bague 58 pourrait être rendue solidaire en translation de l'arbre moteur 34 par un jonc d'arrêt. De même ladite bague 58 pourrait être constituée par une vis ayant la même forme, l'arbre moteur 34 étant muni à son extrémité d'un trou taraudé.In particular, the ring 58 could be made integral in translation with the drive shaft 34 by a stop ring. Similarly, said ring 58 could be constituted by a screw having the same shape, the drive shaft 34 being provided at its end with a tapped hole.

Claims (4)

  1. A starter head for an internal combustion engine, including a throw limiting device (66, 64, 58) and comprising in particular a motor shaft (34), on which is mounted, for sliding movement, a starter pinion (10) which is fixed to a free wheel (18) and to a driving sleeve (24) by means of a shroud (26), the starter pinion (10) having over the whole of its length a bore (40) within which the motor shaft (34) is displaceable, characterised in that the said throw limiting device comprises a sleeve member (58) and a stop ring (66) fitted in a semicylindrical groove (64) formed in the bore (40), with the said stop ring (66) cooperating with the sleeve member (58), which is fixed on the end of the motor shaft (34).
  2. A starter head according to Claim 1, characterised in that it includes a closure cap (54) which defines, with the sleeve member (58), a zone (68) within the bore (40), circulation means (70, 72, 46) for the air contained in the said zone being disposed between the said zone (68) and the rear end of the starter pinion (10).
  3. A starter head according to Claim 2, characterised in that the circulation means comprise longitudinal grooves (70) formed on the periphery of a cylindrical collar portion (62) of the sleeve member (58).
  4. A starter head according to Claim 2 or Claim 3, characterised in that the circulation means include longitudinal grooves (72) formed in the bore (40) of the starter pinion (10).
EP93400044A 1992-01-13 1993-01-11 Abutment device for starter pinion shifting arrangement for an internal combustion engine Expired - Lifetime EP0552081B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9200245 1992-01-13
FR9200245A FR2686125B1 (en) 1992-01-13 1992-01-13 STOP DEVICE FOR A STARTER LAUNCHER FOR AN INTERNAL COMBUSTION ENGINE.

Publications (2)

Publication Number Publication Date
EP0552081A1 EP0552081A1 (en) 1993-07-21
EP0552081B1 true EP0552081B1 (en) 1996-05-22

Family

ID=9425552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93400044A Expired - Lifetime EP0552081B1 (en) 1992-01-13 1993-01-11 Abutment device for starter pinion shifting arrangement for an internal combustion engine

Country Status (7)

Country Link
US (1) US5331860A (en)
EP (1) EP0552081B1 (en)
JP (1) JP3252300B2 (en)
BR (1) BR9300037A (en)
DE (1) DE69302702T2 (en)
ES (1) ES2089740T3 (en)
FR (1) FR2686125B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738599B1 (en) * 1995-09-12 1997-10-03 Valeo Equip Electr Moteur MOTOR VEHICLE STARTER COMPRISING AN IMPROVED LAUNCHER AND LAUNCHER FOR SUCH A STARTER
FR2739661B1 (en) * 1995-10-04 1997-11-21 Valeo Equip Electr Moteur MOTOR VEHICLE STARTER COMPRISING AN IMPROVED LAUNCHER PINION
FR2747741B1 (en) * 1996-04-23 1998-05-22 Valeo Equip Electr Moteur STARTING MOTOR VEHICLE WITH OUTGOING SPROCKET
JP2003097401A (en) * 2001-09-27 2003-04-03 Denso Corp Starter
DE10154157B4 (en) * 2001-11-03 2016-10-20 Robert Bosch Gmbh Free-running starter for internal combustion engines
DE102006051578A1 (en) * 2006-11-02 2008-05-08 Robert Bosch Gmbh Starter for cranking an internal combustion engine with pinion shaft support
DE102009046191A1 (en) * 2009-10-30 2011-05-05 Robert Bosch Gmbh Free-running device for starter device, particularly for starter for staring internal combustion engine of system, has pinion shaft section with running surface and attachment section with another running surface
DE102010030724B4 (en) * 2010-06-30 2019-07-25 Seg Automotive Germany Gmbh Starting device and method for producing a stop for a displaceable pinion of a starting device arranged on a shaft
CN103459829B (en) 2011-03-31 2016-01-27 三菱电机株式会社 Engine starting gear
WO2012131973A1 (en) * 2011-03-31 2012-10-04 三菱電機株式会社 Engine starting device
CN103233988A (en) * 2013-05-09 2013-08-07 无锡市神力齿轮冷挤有限公司 One-way clutch using inner air drain for dust prevention
CN105626344B (en) * 2014-10-27 2019-10-18 法雷奥电机设备公司 Motor vehicles combustion engine starter with air ventilation holes
FR3089571A1 (en) * 2018-12-07 2020-06-12 Valeo Equipements Electriques Moteur Motor vehicle starter launcher and starter comprising such a launcher

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CH128049A (en) * 1927-09-02 1928-10-01 Josef Polak Press casting method and apparatus for carrying out the same.
FR949108A (en) * 1946-10-29 1949-08-22 Device for fixing telescopic tubes together
DE3808673A1 (en) * 1987-03-12 1988-09-22 Mitsubishi Electric Corp Stop for the pinion of a starter motor
JPH0618065Y2 (en) * 1987-03-26 1994-05-11 三菱電機株式会社 Pinion support device for engine starting motor
JPH0742910B2 (en) * 1987-05-27 1995-05-15 三菱電機株式会社 Starter motor
KR920005388B1 (en) * 1987-11-02 1992-07-02 미쯔비시 덴끼 가부시끼가이샤 Engine starter
DE3835481A1 (en) * 1987-11-02 1989-05-11 Mitsubishi Electric Corp PINION STOPPER FOR ENGINE STARTER
JPH0727412Y2 (en) * 1988-08-25 1995-06-21 三菱電機株式会社 Starter motor
US5101114A (en) * 1989-09-01 1992-03-31 Mitsubishi Denki K.K. Starter motor

Also Published As

Publication number Publication date
FR2686125A1 (en) 1993-07-16
BR9300037A (en) 1993-07-20
US5331860A (en) 1994-07-26
DE69302702D1 (en) 1996-06-27
JP3252300B2 (en) 2002-02-04
DE69302702T2 (en) 1996-09-26
FR2686125B1 (en) 1995-07-07
EP0552081A1 (en) 1993-07-21
ES2089740T3 (en) 1996-10-01
JPH0610811A (en) 1994-01-21

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