EP0184948A1 - Arrangement to attach a plate onto an axle - Google Patents

Arrangement to attach a plate onto an axle Download PDF

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Publication number
EP0184948A1
EP0184948A1 EP85401937A EP85401937A EP0184948A1 EP 0184948 A1 EP0184948 A1 EP 0184948A1 EP 85401937 A EP85401937 A EP 85401937A EP 85401937 A EP85401937 A EP 85401937A EP 0184948 A1 EP0184948 A1 EP 0184948A1
Authority
EP
European Patent Office
Prior art keywords
plate
shaft
axle
crown
groove
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
EP85401937A
Other languages
German (de)
French (fr)
Other versions
EP0184948B1 (en
Inventor
Pierre Heritier Best
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.)
Equipements Electriques Moteur SA
Original Assignee
Valeo Electronique SA
Ducellier et Cie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Electronique SA, Ducellier et Cie filed Critical Valeo Electronique SA
Publication of EP0184948A1 publication Critical patent/EP0184948A1/en
Application granted granted Critical
Publication of EP0184948B1 publication Critical patent/EP0184948B1/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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/06—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on engine speed

Definitions

  • the present invention relates to a device for fixing a plate on a smooth shaft in particular for a centrifugal advance regulator of an ignition system of an internal combustion engine for a motor vehicle.
  • the present invention aims to remedy these drawbacks and for this purpose relates to a device for fixing a plate on a smooth shaft in particular for fixing a plate of centrifugal advance regulator on the smooth shaft of a ignition distributor of an internal combustion engine ignition system for a motor vehicle, plate of the type comprising a central orifice through which it is threaded on the shaft and is of diameter equivalent to that of the shaft, characterized in that two annular grooves are produced on the shaft defining a crown which comprises grooves at the bottom of the groove obtained without removal of material and on which the plate is forced-fitted after shrinking the initial diameter of its central orifice at the level of the groove .
  • the plate 1 comprises in known manner a central orifice whose diameter is equal to the diameter of a shaft 2, and a flange 6 at the level of said central orifice.
  • the shaft 2 is obtained from a smooth cylindrical stretch.
  • a crown 3 and two annular grooves 4 and 5 located on either side of the crown 3 are produced on the surface of the shaft 2.
  • the initial diameter of the crown 3 is increased under the effect of a knurling which produces grooves on its surface without removing material.
  • the width of the groove 4 is equivalent to the thickness of the plate 1 excluding the collar 6, its depth as well as that of the groove 5 corresponds to the diameter at the bottom of the grooves of the crown 3 of the shaft 2.
  • the plate 1 is threaded on the shaft 2 to the groove 4, the flange 6 ensures the guidance and the maintenance of the plate 1 on the shaft 2.
  • the internal diameter of the plate 1 is then reduced (according to Fig. 2) to the bottom of the groove 4, this diameter is therefore less than the external diameter of the shaft 2.
  • the plate 1 is then force-fitted (according to Fig. 3) on the ribbed crown 3 until 'to its desired position.
  • the collar 6 is then folded back into the groove 4, and a crimping 7 is carried out on the other face of the plate in the second groove 5.
  • the crimping 7 may possibly be eliminated in the case where during the folding down of the flange 6 the latter fills the groove 4, the plate 1 being in abutment against the shoulder formed on the shaft 2 by the groove 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

This device, more particularly intended to equip an internal combustion engine ignition system, consists, starting from a smooth axle (2) of the ignition distributor, in making on the periphery of this axle a ribbed ring (3), on which there is force-mounted a plate (1) of a centrifugal advance regulator after contraction of the central hole of said plate (1) in a throat (4) of the axle contiguous to the ring (3), then in crimping the plate (1) on both sides of the ring (3). <IMAGE>

Description

La présente invention concerne un dispositif de fixation d'un plateau sur un arbre lisse notamment pour un régulateur d'avance centrifuge d'un système d'allumage de moteur à combustion interne pour véhicule automobile.The present invention relates to a device for fixing a plate on a smooth shaft in particular for a centrifugal advance regulator of an ignition system of an internal combustion engine for a motor vehicle.

Il est connu notanment dans la demande de brevet F : 7 729 112 de fixer un plateau sur un arbre lisse par brasage, or une telle opération implique des déformations des éléments assemblés qu'il est impératif de résorber entraînant ainsi une augmentation sensible du prix de revient de l'assemblage. Afin de supprimer l'emploi de chaleur pour assurer une telle fixation, des stries pourraient être réalisées par moletage sur une partie de la surface périphérique de l'arbre lisse sur lesquelles serait ': emmanché à force le plateau, or dans un dispositif d'allumage l'arbre sur lequel est fixé le plateau du régulateur d'avance centrifuge est de faible diamètre et les stries obtenues ne seraient que de faibles dimensions et conséquemment très fragiles ce qui entraînerait une fixation peu fiable.It is known in particular in patent application F: 7,729,112 to fix a plate on a smooth shaft by brazing, or such an operation involves deformations of the assembled elements which it is imperative to absorb, thus resulting in a significant increase in the price of comes back from the assembly. In order to eliminate the use of heat to ensure such fixing, ridges could be made by knurling on a part of the peripheral surface of the smooth shaft on which would be: force-fitted the plate, or in a device ignition the shaft on which is fixed the plate of the centrifugal advance regulator is of small diameter and the streaks obtained would be only of small dimensions and consequently very fragile which would involve an unreliable fixing.

La présente invention a pour but de remédier à ces inconvénients et concerne à cet effet un dispositif de fixation d'un plateau sur un arbre lisse notamment pour la fixation d'un plateau de régulateur d'avance centrifuge sur l'arbre lisse d'un distributeur d'allumage d'un système d'allumage de moteur à combustion interne pour véhicule automobile, plateau du type comportant un orifice central grace auquel il est enfilé sur l'arbre et est de diamètre équivalent à celui de l'arbre, caractérisé en ce que deux gorges annulaires sont réalisées sur l'arbre définissant une couronne laquelle comporte des stries à fond de gorge obtenues sans enlèvement de matière et sur lesquelles est monté à force le plateau après rétreint du diamètre initial de son orifice central au niveau de la gorge.The present invention aims to remedy these drawbacks and for this purpose relates to a device for fixing a plate on a smooth shaft in particular for fixing a plate of centrifugal advance regulator on the smooth shaft of a ignition distributor of an internal combustion engine ignition system for a motor vehicle, plate of the type comprising a central orifice through which it is threaded on the shaft and is of diameter equivalent to that of the shaft, characterized in that two annular grooves are produced on the shaft defining a crown which comprises grooves at the bottom of the groove obtained without removal of material and on which the plate is forced-fitted after shrinking the initial diameter of its central orifice at the level of the groove .

La description qui va suivre en regard des figures annexées fera mieux comprendre comment l'invention peut être réalisée.The description which follows with reference to the appended figures will make it easier to understand how the invention can be implemented.

  • La figure l.représente la première étape d'un dispositif de fixation selon l'invention.FIG. 1 shows the first step of a fixing device according to the invention.
  • La figure 2 représente le dispositif après rétreint du diamètre interne du plateau.Figure 2 shows the device after shrinking the internal diameter of the plate.
  • La figure 3 représente le dispositif après emmanchement forcé du plateau sur une partie de l'arbre.Figure 3 shows the device after forced fitting of the plate on a part of the shaft.
  • La figure 4 représente le dispositif de fixation conforme à l'invention.Figure 4 shows the fixing device according to the invention.

Le plateau 1 comporte de façon connue un orifice central dont le diamètre est égal au diamètre d'un arbre 2, et une collerette 6 au niveau dudit orifice central. L'arbre 2 est obtenu à partir d'un étiré lisse cylindrique.The plate 1 comprises in known manner a central orifice whose diameter is equal to the diameter of a shaft 2, and a flange 6 at the level of said central orifice. The shaft 2 is obtained from a smooth cylindrical stretch.

Conformément à l'invention une couronne 3 et deux gorges annulaires 4 et 5 situées de part et d'autre de la couronne 3 sont réalisées à la surface de l'arbre 2.According to the invention, a crown 3 and two annular grooves 4 and 5 located on either side of the crown 3 are produced on the surface of the shaft 2.

Le diamètre initial de la couronne 3 est augmenté sous l'effet d'un moletage qui réalise des stries à sa surface sans enlèvement de matière.The initial diameter of the crown 3 is increased under the effect of a knurling which produces grooves on its surface without removing material.

La largeur de la gorge 4 équivaut à l'épaisseur du plateau 1 hors collerette 6, sa profondeur ainsi que celle de la gorge 5 correspond au diamètre à fond de stries de la couronne 3 de l'arbre 2.The width of the groove 4 is equivalent to the thickness of the plate 1 excluding the collar 6, its depth as well as that of the groove 5 corresponds to the diameter at the bottom of the grooves of the crown 3 of the shaft 2.

Selon la figure 1 le plateau 1 est enfilé sur l'arbre 2 jusqu'à la gorge 4, la collerette 6 assure le guidage et le maintien du plateau 1 sur l'arbre 2. Le diamètre interne du plateau 1 est alors retreint (selon la fig. 2) jusqu'au fond de la gorge 4, ce diamètre se trouve donc inférieur au diamètre externe de l'arbre 2. Le plateau 1 est ensuite emmanché à force (selon la fig. 3) sur la couronne striée 3 jusqu'à sa position désirée. La collerette 6 est alors rabattue dans la gorge 4, et un sertissage 7 est effectué sur l'autre face du plateau dans la seconde gorge 5.According to Figure 1 the plate 1 is threaded on the shaft 2 to the groove 4, the flange 6 ensures the guidance and the maintenance of the plate 1 on the shaft 2. The internal diameter of the plate 1 is then reduced (according to Fig. 2) to the bottom of the groove 4, this diameter is therefore less than the external diameter of the shaft 2. The plate 1 is then force-fitted (according to Fig. 3) on the ribbed crown 3 until 'to its desired position. The collar 6 is then folded back into the groove 4, and a crimping 7 is carried out on the other face of the plate in the second groove 5.

Il est ainsi obtenu une fixation effective du plateau sur l'arbre sans risque de déformation de l'arbre ni de désolidarisation possible de ces deux éléments.It is thus obtained an effective fixing of the plate on the shaft without risk of deformation of the shaft or possible separation of these two elements.

Le sertissage 7 pourra éventuellement être supprimé dans le cas ou lors du rabattement de la collerette 6 celle-ci remplisse la gorge 4, le plateau 1 étant en butée contre l'épaulement formé sur l'arbre 2 par la gorge 5.The crimping 7 may possibly be eliminated in the case where during the folding down of the flange 6 the latter fills the groove 4, the plate 1 being in abutment against the shoulder formed on the shaft 2 by the groove 5.

Claims (2)

1.- Dispositif de fixation d'un plateau sur un arbre lisse notamment pour la fixation d'un plateau (1) de régulateur d'avance centrifuge sur l'arbre lisse (2) d'un distributeur d'allumage d'un système d'allumage de moteur à combustion .interne pour véhicule automobile, plateau (1) du type comportant un orifice central grace auquel il est enfilé sur l'arbre (2) et est de diamètre équivalent à celui de l'arbre, caractérisé en ce que deux gorges annulaires (4 et 5) sont réalisées sur l'arbre (2) définissant une couronne (3) laquelle comporte des stries à fond de gorge obtenues sans enlèvement de matière et sur lesquelles est monté à force le plateau (1) après rétreint du diamètre initial de son orifice central au niveau de la gorge (4).1.- Device for fixing a plate on a smooth shaft in particular for fixing a plate (1) of centrifugal advance regulator on the smooth shaft (2) of an ignition distributor of a system internal combustion engine ignition for a motor vehicle, plate (1) of the type comprising a central orifice through which it is threaded on the shaft (2) and is of diameter equivalent to that of the shaft, characterized in that that two annular grooves (4 and 5) are produced on the shaft (2) defining a crown (3) which comprises grooves at the bottom of the groove obtained without removal of material and on which the plate (1) is forcibly mounted after shrunk from the initial diameter of its central orifice at the level of the groove (4). 2.- Dispositif selon la revendication 1 caractérisé en ce que le plateau (1) une fois monté à force sur les stries de la couronne(3) est serti au moins d'un côté de la couronne (3) sur l'arbre (2).2.- Device according to claim 1 characterized in that the plate (1) once forcibly mounted on the ridges of the crown (3) is crimped at least on one side of the crown (3) on the shaft ( 2).
EP19850401937 1984-11-09 1985-10-04 Arrangement to attach a plate onto an axle Expired - Lifetime EP0184948B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8417060 1984-11-09
FR8417060A FR2573140B1 (en) 1984-11-09 1984-11-09 DEVICE FOR FIXING A TRAY ON A SHAFT.

Publications (2)

Publication Number Publication Date
EP0184948A1 true EP0184948A1 (en) 1986-06-18
EP0184948B1 EP0184948B1 (en) 1991-01-09

Family

ID=9309409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850401937 Expired - Lifetime EP0184948B1 (en) 1984-11-09 1985-10-04 Arrangement to attach a plate onto an axle

Country Status (4)

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EP (1) EP0184948B1 (en)
DE (1) DE3581278D1 (en)
ES (1) ES8701318A1 (en)
FR (1) FR2573140B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2839122B1 (en) * 2002-04-26 2008-04-04 Johnson Contr Automotive Elect METHOD OF ASSEMBLING AN ELECTROMAGNETIC ACTUATOR PALETTE TO ITS PUSH-BUTTON AND ASSEMBLY OBTAINED

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435610A1 (en) * 1978-06-28 1980-04-04 Ducellier & Cie Ignition advance device for distributor - has rotating metal arm with guide pin moving outwards under centrifugal force

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117360A (en) * 1982-12-15 1983-07-12 Hitachi Ltd Manufacture of centrifugal type ignition timing adjusting device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435610A1 (en) * 1978-06-28 1980-04-04 Ducellier & Cie Ignition advance device for distributor - has rotating metal arm with guide pin moving outwards under centrifugal force

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 223, 4 octobre 1983, page 1368,247; & JP - A - 58 117 360 (HITACHI SEISAKUSHO K.K.) 12-07-1983 *

Also Published As

Publication number Publication date
ES8701318A1 (en) 1986-11-16
DE3581278D1 (en) 1991-02-14
EP0184948B1 (en) 1991-01-09
FR2573140B1 (en) 1988-01-08
FR2573140A1 (en) 1986-05-16
ES548725A0 (en) 1986-11-16

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