EP1568116A2 - Tensioning roller spacer for motor vehicle engine alternator - Google Patents

Tensioning roller spacer for motor vehicle engine alternator

Info

Publication number
EP1568116A2
EP1568116A2 EP03796159A EP03796159A EP1568116A2 EP 1568116 A2 EP1568116 A2 EP 1568116A2 EP 03796159 A EP03796159 A EP 03796159A EP 03796159 A EP03796159 A EP 03796159A EP 1568116 A2 EP1568116 A2 EP 1568116A2
Authority
EP
European Patent Office
Prior art keywords
screw
spacer
roller
fixing
alternator
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Withdrawn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
EP03796159A
Other languages
German (de)
French (fr)
Inventor
Christian Corde
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
Original Assignee
Renault SAS
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 filed Critical Renault SAS
Publication of EP1568116A2 publication Critical patent/EP1568116A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/18—Means for guiding or supporting belts, ropes, or chains
    • F16H7/20—Mountings for rollers or pulleys
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/26—Means for adjusting casings relative to their supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/06—Endless member is a belt

Definitions

  • the invention relates to a device for mounting a winding roller intended to facilitate the winding of the belts on an alternator pulley.
  • alternator At least one roller which presses the belt in the region of its passage on the pulley.
  • this roller roller is fixed to the cylinder block or to the cylinder head by a steel spacer; the spacer consists of a cylindrical sleeve carrying an end shoulder over which the hub of the roller is passed, provided with its rolling bearings, and which is fixed to the spacer by the head of a screw whose the threaded part passes through the hollow sleeve and is screwed into a threaded hole formed in the casing.
  • a problem related to this solution is the difficulty of finding an adequate location in the environment of the alternator for fixing the take-up roller, where it follows that the belt winding is not always optimized.
  • mounting the take-up roller represents an additional mounting operation which increases the time and overall cost of mounting the engine.
  • the object of the invention is to find a new solution for placing and fixing the alternator winding roller which eliminates the drawbacks mentioned.
  • the invention achieves its object by means of a winder roller spacer for an alternator fixed to an engine part by means of at least one fixing screw, the spacer consisting of a cylindrical axis carrying a terminal shoulder on which we come pass the hub of the take-up roller, fitted with its bearings. bearing, and that is just fixed to the spacer by a clamping means linked to the axis, the spacer being provided with means for fixing to a support linked to the motor, characterized in that said means for fixing to the support comprise a screw integral and coaxial with said axis supporting the winding roller, the screw being adapted to constitute the alternator fixing screw.
  • the alternator fixing screw crosses and clamps two fixing lugs provided on the alternator, as seen for example in document US 4835428 or US 4,849,665, and it is therefore at this location that is provided the screw spacer according to the invention, carrying the roller reel.
  • the cylindrical axis comprises a form of tightening of the spacer screw, for example hexagonal sections.
  • the cylindrical support axis of the take-up roller is hollow at its end and allows the screwing of a second screw then forming the means for tightening the hub of the take-up roller.
  • Other clamping means can be provided, such as keys.
  • FIG. 1 is a schematic sectional view of the device for fixing the winding roller on the spacer screw for fixing an alternator
  • FIG. 2 is a perspective view of said spacer screw.
  • Figure 1 schematically illustrates the lower part of an alternator
  • the screw 4 comprises a threaded tail 5, a guard flange 6, a cylindrical spacer or axis part 7, a flange 8 for the roller stop, a cylindrical bearing surface 15 and a hexagonal screw head 9.
  • the screw 4 is hollowed out, on the head side, by a tapped recess 10. This can accommodate the threaded shank 11 of a roller fixing screw 12, comprising a hexagonal head 13 and a guard flange 14.
  • the roller roller 20 comprises a hub disc 21 (with integrated bearings not shown) with central orifice 22 corresponding substantially to the diameter of the cylindrical seat 15 and making it possible to thread the roller 20 onto the end of the spacer screw 4, in abutment against the flange 8, and to block it by the flange 14 of the roller fixing screw 12.

Abstract

The invention concerns a tensioning roller for alternator (1) fixed to one part (3) of the engine consisting of a cylindrical shaft (7) bearing a terminal flange whereon is set the tensioning roller hub (20), provided with its antifriction bearings to be fixed to the spacer by clamping means linked to the shaft, the spacer being provided with means to be fixed to a support linked to the engine including a screw (4) integral and coaxial with said shaft (7) support the tensioning roller, the screw (4) being adapted to constitute the screw fixing the alternator (1).

Description

Entretoise de galet enrouleur pour alternateur de moteur d'automobileRoller spacer for automotive engine alternator
L'invention concerne un dispositif de montage de galet enrouleur destiné à faciliter l'enroulement des courroies sur une poulie d'alternateur.The invention relates to a device for mounting a winding roller intended to facilitate the winding of the belts on an alternator pulley.
Afin d'assurer un enroulement maximum (180° au minimum) d'une courroie sur la poulie d'un alternateur de moteur d'un véhicule automobile, il est connu en pratique de prévoir en vis-à-vis de la poulie d'alternateur au moins un galet enrouleur qui vient appuyer sur la courroie dans la région de son passage sur la poulie.To ensure maximum winding (180 ° minimum) of a belt on the pulley of an engine alternator of a motor vehicle, it is known in practice to provide opposite the pulley. alternator at least one roller which presses the belt in the region of its passage on the pulley.
A l'heure actuelle, ce galet enrouleur est fixé au carter cylindres ou à la culasse par une entretoise d'acier ; l'entretoise est constituée d'un manchon cylindrique portant un épaulement terminal sur lequel on vient passer le moyeu du galet enrouleur, muni de ses paliers de roulement, et qu'on vient fixer à l'entretoise par la tête d'une vis dont la partie filetée traverse le manchon creux et vient se visser dans un trou taraudé formé dans le carter. Un problème lié à cette solution est la difficulté de trouver un emplacement adéquat dans l'environnement de l'alternateur pour fixer le galet enrouleur, d'où il résulte que l'enroulement de courroie n'est pas toujours optimisé. De plus, le montage du galet enrouleur représente une opération de montage supplémentaire qui augmente le temps et le coût global de montage du moteur.At present, this roller roller is fixed to the cylinder block or to the cylinder head by a steel spacer; the spacer consists of a cylindrical sleeve carrying an end shoulder over which the hub of the roller is passed, provided with its rolling bearings, and which is fixed to the spacer by the head of a screw whose the threaded part passes through the hollow sleeve and is screwed into a threaded hole formed in the casing. A problem related to this solution is the difficulty of finding an adequate location in the environment of the alternator for fixing the take-up roller, where it follows that the belt winding is not always optimized. In addition, mounting the take-up roller represents an additional mounting operation which increases the time and overall cost of mounting the engine.
Le but de l'invention est de trouver une solution nouvelle de placement et de fixation du galet enrouleur d'alternateur qui supprime les inconvénients mentionnés.The object of the invention is to find a new solution for placing and fixing the alternator winding roller which eliminates the drawbacks mentioned.
L'invention atteint son but grâce à une entretoise de galet enrouleur pour alternateur fixé à une partie de moteur au moyen d'au moins une vis de fixation, l'entretoise étant constituée d'un axe cylindrique portant un épaulement terminal sur lequel on vient passer le moyeu du galet enrouleur, muni de ses paliers de. roulement, et qu'on vient fixer à l'entretoise par un moyen de serrage lié à l'axe, l'entretoise étant pourvue de moyens de fixation à un support lié au moteur, caractérisée en ce que lesdits moyens de fixation au support comprennent une vis solidaire et coaxiale audit axe supportant le galet enrouleur, la vis étant adaptée pour constituer la vis de fixation de l'alternateur.The invention achieves its object by means of a winder roller spacer for an alternator fixed to an engine part by means of at least one fixing screw, the spacer consisting of a cylindrical axis carrying a terminal shoulder on which we come pass the hub of the take-up roller, fitted with its bearings. bearing, and that is just fixed to the spacer by a clamping means linked to the axis, the spacer being provided with means for fixing to a support linked to the motor, characterized in that said means for fixing to the support comprise a screw integral and coaxial with said axis supporting the winding roller, the screw being adapted to constitute the alternator fixing screw.
Ainsi, il est possible de fixer en même temps que l'alternateur. lui-même, son galet enrouleur, en une seule opération de montage. De plus, il s'avère que cet emplacement ne nécessite pas de prévoir d'autre perçage de trou taraudé ailleurs.Thus, it is possible to fix at the same time as the alternator. itself, its roller, in a single assembly operation. Moreover, it turns out that this location does not require any other drilling of a tapped hole elsewhere.
Généralement, la vis de fixation de l'alternateur traverse et serre deux oreilles de fixation prévues sur l'alternateur, comme on le voit par exemple dans le document US 4835428 ou US 4 849 665, et c'est donc à cet emplacement qu'est prévue la vis-entretoise conforme à l'invention, portant le galet enrouleur.Generally, the alternator fixing screw crosses and clamps two fixing lugs provided on the alternator, as seen for example in document US 4835428 or US 4,849,665, and it is therefore at this location that is provided the screw spacer according to the invention, carrying the roller reel.
Avantageusement, l'axe cylindrique comporte une forme de serrage de la vis-entretoise, par exemple des pans hexagonaux. Avantageusement, l'axe cylindrique de support du galet enrouleur est creux à son extrémité et permet le vissage d'une seconde vis formant alors le moyen de serrage du moyeu du galet enrouleur. D'autres moyens de serrage peuvent être prévus, tels que clavettes.Advantageously, the cylindrical axis comprises a form of tightening of the spacer screw, for example hexagonal sections. Advantageously, the cylindrical support axis of the take-up roller is hollow at its end and allows the screwing of a second screw then forming the means for tightening the hub of the take-up roller. Other clamping means can be provided, such as keys.
D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui va suivre, en référence aux dessins annexés sur lesquels :Other characteristics and advantages of the invention will emerge on reading the description which follows, with reference to the appended drawings in which:
-la figure 1 est une vue schématique en coupe du dispositif de fixation de galet enrouleur sur la vis entretoise de fixation d'un alternateur, -la figure 2 est une vue en perspective de ladite vis entretoise. La figure 1 illustre schématiquement la partie basse d'un alternateurFIG. 1 is a schematic sectional view of the device for fixing the winding roller on the spacer screw for fixing an alternator, FIG. 2 is a perspective view of said spacer screw. Figure 1 schematically illustrates the lower part of an alternator
1, comportant des oreilles de fixation 2 sur un étrier 3 lié au bloc-moteur, la fixation se faisant par une vis 4 se vissant dans des orifices taraudés des oreilles 2.1, comprising fixing ears 2 on a stirrup 3 connected to the engine block, the fixing being carried out by a screw 4 which is screwed into threaded orifices of the ears 2.
La vis 4 comporte une queue filetée 5, une collerette de garde 6, une partie cylindrique d'entretoise ou axe 7, une collerette 8 de butée de galet, une portée cylindrique 15 et une tête de vis 9 hexagonale. La vis 4 est creusée, du côté tête, par un évidement taraudé 10. Celui-ci peut accueillir la queue filetée 11 d'une vis 12 de fixation de galet, comportant une tête hexagonale 13 et une collerette de garde 14. Le galet enrouleur 20 comporte un disque-moyeu 21 (à paliers intégrés non représentés) à orifice central 22 correspondant sensiblement au diamètre de la portée cylindrique 15 et permettant d'enfiler le galet 20 sur l'extrémité de la vis-entretoise 4, en butée contre la collerette 8, et de le bloquer par la collerette 14 de la vis 12 de fixation de galet. The screw 4 comprises a threaded tail 5, a guard flange 6, a cylindrical spacer or axis part 7, a flange 8 for the roller stop, a cylindrical bearing surface 15 and a hexagonal screw head 9. The screw 4 is hollowed out, on the head side, by a tapped recess 10. This can accommodate the threaded shank 11 of a roller fixing screw 12, comprising a hexagonal head 13 and a guard flange 14. The roller roller 20 comprises a hub disc 21 (with integrated bearings not shown) with central orifice 22 corresponding substantially to the diameter of the cylindrical seat 15 and making it possible to thread the roller 20 onto the end of the spacer screw 4, in abutment against the flange 8, and to block it by the flange 14 of the roller fixing screw 12.

Claims

REVENDICATIONS
1. Entretoise de galet enrouleur (20) pour alternateur (1) fixé à une partie (3) d'un moteur au moyen d'au moins une vis de fixation, l'entretoise étant constituée d'un axe cylindrique (7) portant un épaulement terminal (8) sur lequel on vient passer le moyeu du galet enrouleur (20), muni de ses paliers de roulement, et qu'on vient fixer à l'entretoise par un moyen de serrage (12) lié à l'axe, l'entretoise étant pourvue de moyens de fixation à un support lié au moteur, caractérisée en ce que lesdits moyens de fixation au support comprennent une vis (4) solidaire et coaxiale audit axe (7) supportant le galet enrouleur (20), la vis (4) étant adaptée pour constituer la vis de fixation de l'alternateur (1).1. Winder roller spacer (20) for alternator (1) fixed to a part (3) of an engine by means of at least one fixing screw, the spacer consisting of a cylindrical axis (7) bearing a terminal shoulder (8) over which the hub of the winding roller (20) is passed, provided with its rolling bearings, and which is fixed to the spacer by a clamping means (12) linked to the axis , the spacer being provided with means for fixing to a support linked to the motor, characterized in that said means for fixing to the support comprise a screw (4) integral and coaxial with said axis (7) supporting the winding roller (20), the screw (4) being adapted to constitute the alternator fixing screw (1).
2. Entretoise selon la revendication 1, caractérisée en ce que la vis de fixation (4) traverse et serre deux oreilles de fixation (2).2. Spacer according to claim 1, characterized in that the fixing screw (4) passes through and tightens two fixing ears (2).
3. Entretoise selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que l'axe cylindrique (7) comporte une forme de serrage (9) de la vis (4).3. Spacer according to any one of claims 1 or 2, characterized in that the cylindrical axis (7) has a tightening form (9) of the screw (4).
4. Entretoise selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'axe cylindrique (7) de support du galet enrouleur est creux à son extrémité et permet le vissage d'une seconde vis (12) formant alors le moyen de serrage du moyeu du galet enrouleur (20). 4. Spacer according to any one of claims 1 to 3, characterized in that the cylindrical axis (7) for supporting the winding roller is hollow at its end and allows the screwing of a second screw (12) then forming the clamping means of the roller roller hub (20).
EP03796159A 2002-12-06 2003-12-04 Tensioning roller spacer for motor vehicle engine alternator Withdrawn EP1568116A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0215438A FR2848355B1 (en) 2002-12-06 2002-12-06 ROLLER SPACER REEL FOR AUTOMOTIVE MOTOR ALTERNATOR
FR0215438 2002-12-06
PCT/FR2003/003588 WO2004054071A2 (en) 2002-12-06 2003-12-04 Tensioning roller spacer for motor vehicle engine alternator

Publications (1)

Publication Number Publication Date
EP1568116A2 true EP1568116A2 (en) 2005-08-31

Family

ID=32320052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03796159A Withdrawn EP1568116A2 (en) 2002-12-06 2003-12-04 Tensioning roller spacer for motor vehicle engine alternator

Country Status (3)

Country Link
EP (1) EP1568116A2 (en)
FR (1) FR2848355B1 (en)
WO (1) WO2004054071A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104864047A (en) * 2015-05-08 2015-08-26 刘青建 Driving mechanism for belt pulley
DE102018202968B4 (en) 2018-02-28 2019-09-05 Ford Global Technologies, Llc Structure-reinforced hollow element and a vehicle body having this

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT130902B (en) * 1928-12-20 1932-12-27 Aeg Union Elek Wien Tension pulley arrangement for mounting on electric motors.
ZA824205B (en) * 1981-06-18 1983-04-27 Lucas Ind Plc Engine auxilliary drive and an engine auxiliary fitted therewith
JPS59190429A (en) * 1983-04-12 1984-10-29 Toyota Motor Corp Alternator
FR2662871B1 (en) * 1990-05-30 1992-08-07 Valeo Equip Electr Moteur ALTERNATOR, PARTICULARLY FOR MOTOR VEHICLES, AND ITS DEVICE FOR ADJUSTING THE BELT TENSION.
JPH04166620A (en) * 1990-10-31 1992-06-12 Yamaha Motor Co Ltd Alternator driving device for engine
JPH05322005A (en) * 1992-05-25 1993-12-07 Bando Chem Ind Ltd Idler pulley

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004054071A3 *

Also Published As

Publication number Publication date
WO2004054071A3 (en) 2004-09-10
FR2848355A1 (en) 2004-06-11
FR2848355B1 (en) 2005-02-04
WO2004054071A2 (en) 2004-06-24

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