FR2574486A1 - Centrifugal governor of an ignition distributor - Google Patents

Centrifugal governor of an ignition distributor Download PDF

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Publication number
FR2574486A1
FR2574486A1 FR8418694A FR8418694A FR2574486A1 FR 2574486 A1 FR2574486 A1 FR 2574486A1 FR 8418694 A FR8418694 A FR 8418694A FR 8418694 A FR8418694 A FR 8418694A FR 2574486 A1 FR2574486 A1 FR 2574486A1
Authority
FR
France
Prior art keywords
plate
axis
ignition distributor
coating
abrasion
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.)
Withdrawn
Application number
FR8418694A
Other languages
French (fr)
Inventor
Pierre Heritier Best
Denis Plantin
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.)
Ducellier et Cie
Original Assignee
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 Ducellier et Cie filed Critical Ducellier et Cie
Priority to FR8418694A priority Critical patent/FR2574486A1/en
Publication of FR2574486A1 publication Critical patent/FR2574486A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00Advancing or retarding ignition; Control therefor
    • F02P5/04Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05Advancing 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
    • F02P5/06Advancing 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

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  • 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)

Abstract

This governor, with applications especially in an internal combustion engine, is of the type comprising a metal spring 3, the loop-shaped end 4 of which is hooked on a plate 1 by way of a metal pin 2 obtained by cold extrusion of the plate 1 and on which is held a covering 6a of plastic material, the end of which forms an annular groove 10.

Description

REGULATETJR CENTRIFUGE D'UN DISTRIBUTEUR D'ALLUMAGE. REGULATETJR CENTRIFUGAL OF AN IGNITION DISTRIBUTOR.

La présente invention concerne un régulateur centrifuge d'ur distributeur d'allumage pouvmoteur à combustion interne du type comportant un ressort métallique dont l'extrémité en forme de boucle est accroché à un plateau par l'intermédiaire d'un axe métallique solidaire du plateau. The present invention relates to a centrifugal regulator of an internal combustion engine ignition distributor of the type comprising a metal spring, the loop-shaped end of which is attached to a plate by means of a metal axis integral with the plate.

Dans de tels régulateurs centrifuges un frottement se produit au niveau de la liaison du ressort avec l'axe, ces deux éléments étant métalliques il s'ensuit une usure par abrasion au niveau des surfaces de contact. In such centrifugal regulators, friction occurs at the connection of the spring with the axis, these two elements being metallic, this results in abrasion wear at the contact surfaces.

Il est connu de munir l'axe d'une enveloppe en matière plastique, or cet axe est soit rapporté sur le plateau ce qui nécessite une opération de fixation de cet axe sur le plateau soit découpé, puis cambré à l'extérieur du plateau, ce qui entraîne des chutes de matériau importantes. It is known to provide the axis with a plastic envelope, but this axis is either attached to the plate which requires an operation for fixing this axis on the plate is cut, then arched outside the plate, resulting in significant material drops.

La présente invention a pour but de remédier à ces inconvénients et concerne à cet effet un régulateur centrifuge d'un distributeur d'allumage pour moteur à combustion interné du type comportant un ressort métallique dont l'extrémité en forme de boucle est accrochée à un plateau par l'intermédiaire d'un axe métallique solidaire du plateau, caractérisé en ce que l'axe est obtenu de matière avec le plateau par extrusion à froid dudit plateau et qu'il comporte des moyens de maintien d'un revetement résistant à l'abrasion qui comporte une torge annulaire sur sa périphérie. The present invention aims to remedy these drawbacks and for this purpose relates to a centrifugal regulator of an ignition distributor for an internal combustion engine of the type comprising a metal spring whose loop-shaped end is hooked to a plate by means of a metal axis integral with the plate, characterized in that the axis is obtained in one piece with the plate by cold extrusion of said plate and that it comprises means for maintaining a coating resistant to abrasion which comprises an annular torge on its periphery.

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 1 représente en coupe un plateau d'un régulateur centrifuge d'un distributeur au niveau de sa liaison avec un ressort métallique. Figure 1 shows in section a plate of a centrifugal regulator of a distributor at its connection with a metal spring.

La figure 2 représente une variante de la liaison du ressort métallique avec le plateau. Figure 2 shows a variant of the connection of the metal spring with the plate.

De façon connue, un régulateur centrifuge pour distributeur d'allumage comporte une pluralité de liaisons entre differents éléments métalliques et notamment entre un plateau 1, un axe 2 solidaire du plateau et un ressort 3. In a known manner, a centrifugal regulator for an ignition distributor comprises a plurality of connections between different metallic elements and in particular between a plate 1, an axis 2 secured to the plate and a spring 3.

Le ressort 3 comporte à son extrémité une boucle 4 qui s'accroche autour de l'axe 2.  The spring 3 has at its end a loop 4 which hooks around the axis 2.

Conformément à l'invention l'axe 2 est obtenu de matière avec le plateau 1 par une opération d'extrudage à froid d'une partie du plateau 4, la matière de cette partie est alors repoussée sous la forme de l'axe 2 désiré, à l'extérieur de la face choisie du plateau 1 en laissant un évidement 9 sur la face opposée. According to the invention the axis 2 is obtained from material with the plate 1 by a cold extrusion operation of a part of the plate 4, the material of this part is then pushed back in the form of the desired axis 2 , outside the chosen face of the plate 1, leaving a recess 9 on the opposite face.

Cet axe 2 est ensuite recouvert d'un revêtement 6 résistant à l'abrasion notamment en matériau du type polyamide renforcé fibres de verre. This axis 2 is then covered with an abrasion-resistant coating 6, in particular of material of the polyamide type reinforced with glass fibers.

Selon la figure 1 le revêtement 6 est une gaine 6a enfilée autour de l'axe 2 puis maintenue par un sertissage 7 réalisé à l'extrémité libre de l'axe 2. Cette gaine ou entretoise comporte une gorge 10 sur sa face externe dans laquelle est logée l'extrémité en forme de boucle 4 du ressort 3. According to Figure 1 the coating 6 is a sheath 6a threaded around the axis 2 and then held by a crimping 7 made at the free end of the axis 2. This sheath or spacer has a groove 10 on its outer face in which the loop-shaped end 4 of the spring 3 is housed.

Ce revêtement 6 peut être avantageusement réalisé par un surmoulage 6b sur l'axe 2, lequel comporte des moyens connus de maintien de ce surmoulage 6b, telle que, par exemple une collerette 8 réalisée à l'extrémité dudit axe(tel que représenté à la figure 2) ou des crans réalisés à la périphérie de l'axe 2 lors de l'extrudage, ou tout autre moyen connu.  This coating 6 can advantageously be produced by an overmolding 6b on the axis 2, which comprises known means for retaining this overmolding 6b, such as, for example a flange 8 produced at the end of said axis (as shown in FIG. Figure 2) or notches made at the periphery of the axis 2 during extrusion, or any other known means.

Claims (3)

REVENDICATIONS 1. - Régulateur centrifuge dXun distributeur dtallumage pour moteur à combustion interne du type comportant un ressort métallique (3) dont l'extrémité (4) en forme de boucle est accrochée à un plateau (1) par l'intermédiaire d'un axe métallique (2) solidaire du plateau (1), cara- térisé n ce que l'axe (2) est obtenu de matière avec le plateau (1) par extrusion à froid dudit plateau et qu'il comporte des moyens de maintien d'un revêtement (6) résistant à l'abrasion qui comporte une gorge annulaire (10) sur sa périphérie.  1. - Centrifugal regulator with an ignition distributor for an internal combustion engine of the type comprising a metal spring (3) whose end (4) in the form of a loop is attached to a plate (1) via a metal axis (2) integral with the plate (1), characterized in that the axis (2) is obtained in one piece with the plate (1) by cold extrusion of said plate and that it comprises means for holding a abrasion resistant coating (6) which has an annular groove (10) on its periphery. 2.- Régulateur centrifuge selon ia revendication 1 caractérisé en ce que le revêtement (6) résistant à l'abrasion est un surmoulage (6b) d'un matériau plastique.  2.- centrifugal regulator according to ia claim 1 characterized in that the coating (6) resistant to abrasion is an overmolding (6b) of a plastic material. 3.- Régulateur centrifuge selon la revendication 1, caractérisé en ce que le revêtement (5) résistant à l'abrasion est une gaine(6a) en matériau plastique maintenue par un sertissage annuaire (7j réalisé à l'extrémité de l'axe (2).  3.- centrifugal regulator according to claim 1, characterized in that the coating (5) resistant to abrasion is a sheath (6a) made of plastic material maintained by a directory crimping (7j made at the end of the axis ( 2).
FR8418694A 1984-12-07 1984-12-07 Centrifugal governor of an ignition distributor Withdrawn FR2574486A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8418694A FR2574486A1 (en) 1984-12-07 1984-12-07 Centrifugal governor of an ignition distributor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8418694A FR2574486A1 (en) 1984-12-07 1984-12-07 Centrifugal governor of an ignition distributor

Publications (1)

Publication Number Publication Date
FR2574486A1 true FR2574486A1 (en) 1986-06-13

Family

ID=9310342

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8418694A Withdrawn FR2574486A1 (en) 1984-12-07 1984-12-07 Centrifugal governor of an ignition distributor

Country Status (1)

Country Link
FR (1) FR2574486A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1725522A (en) * 1921-06-25 1929-08-20 Kent Arthur Atwater Ignition-governing apparatus
FR2161726A5 (en) * 1971-11-20 1973-07-06 Bosch
JPS52122736A (en) * 1976-04-09 1977-10-15 Hitachi Ltd Ignition timing device
JPS54135936A (en) * 1978-04-14 1979-10-22 Hitachi Ltd Centrifugal advance guide plate manufacturing method
FR2478212A1 (en) * 1980-03-15 1981-09-18 Bosch Gmbh Robert Distributor for IC engines - has ignition advance control springs fitted with elastomeric dampers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1725522A (en) * 1921-06-25 1929-08-20 Kent Arthur Atwater Ignition-governing apparatus
FR2161726A5 (en) * 1971-11-20 1973-07-06 Bosch
JPS52122736A (en) * 1976-04-09 1977-10-15 Hitachi Ltd Ignition timing device
JPS54135936A (en) * 1978-04-14 1979-10-22 Hitachi Ltd Centrifugal advance guide plate manufacturing method
FR2478212A1 (en) * 1980-03-15 1981-09-18 Bosch Gmbh Robert Distributor for IC engines - has ignition advance control springs fitted with elastomeric dampers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 2, no. 9, 23 janvier 1978, page 6669 H 77; & JP - A - 52 122 736 (HITACHI SEISAKUSHO K.K.) 15-10-1977 *
PATENTS ABSTRACTS OF JAPAN, vol. 3, no. 158 (M-86), 25 décembre 1979, page 72 M 86; & JP - A - 54 135 936 (HITAcHI SEISAKUSHO K.K.) 22-10-1979 *

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