FR2668438A1 - TRANSMISSION DEVICE FOR A WINDSCREEN WIPER FOR A MOTOR VEHICLE. - Google Patents

TRANSMISSION DEVICE FOR A WINDSCREEN WIPER FOR A MOTOR VEHICLE. Download PDF

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Publication number
FR2668438A1
FR2668438A1 FR9113426A FR9113426A FR2668438A1 FR 2668438 A1 FR2668438 A1 FR 2668438A1 FR 9113426 A FR9113426 A FR 9113426A FR 9113426 A FR9113426 A FR 9113426A FR 2668438 A1 FR2668438 A1 FR 2668438A1
Authority
FR
France
Prior art keywords
toothed wheel
transmission device
motor vehicle
shaft
opening
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
FR9113426A
Other languages
French (fr)
Other versions
FR2668438B1 (en
Inventor
Buschi Luciano
Larva Luigi
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.)
Industrie Magneti Marelli SRL
Original Assignee
Industrie Magneti Marelli SRL
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 Industrie Magneti Marelli SRL filed Critical Industrie Magneti Marelli SRL
Publication of FR2668438A1 publication Critical patent/FR2668438A1/en
Application granted granted Critical
Publication of FR2668438B1 publication Critical patent/FR2668438B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/0018Shaft assemblies for gearings
    • F16H57/0025Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/08Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/04Wipers or the like, e.g. scrapers
    • B60S1/06Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16Means for transmitting drive
    • B60S1/18Means for transmitting drive mechanically
    • B60S1/26Means for transmitting drive mechanically by toothed gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Mechanical Means For Catching Fish (AREA)
  • Gears, Cams (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

Le dispositif comprend un arbre ou goujon porte-bras (1) ayant une première extrémité (1a) plantée avec interaction dans une ouverture centrale (3a) d'une roue dentée (3). La surface de l'ouverture centrale (3a) de ladite roue dentée (3) est crénelée ou rayée, et l'extrémité (1a) de l'arbre (1) insérée dans ladite ouverture (3a) est lisse, préalablement au montage.The device comprises an arm shaft or pin (1) having a first end (1a) planted interactively in a central opening (3a) of a toothed wheel (3). The surface of the central opening (3a) of said toothed wheel (3) is crenellated or scored, and the end (1a) of the shaft (1) inserted into said opening (3a) is smooth, prior to assembly.

Description

1 -1 -

DISPOSITIF DE TRANSMISSION POUR UN ESSUIE-GLACE POUR  TRANSMISSION DEVICE FOR A WINDSCREEN WIPER

VEHICULE AUTOMOBILEMOTOR VEHICLE

La présente invention se rapporte à un dispositif de transmission pour un essuie-glace (avant ou arrière) pour  The present invention relates to a transmission device for a wiper (front or rear) for

véhicule automobile,.motor vehicle,.

Plus spécifiquement, L'invention a pour objet un dispositif de transmission comprenant un arbre ou goujon porte-bras ayant une extrémité plantée avec interaction  More specifically, the subject of the invention is a transmission device comprising a shaft or arm-holding stud having an end planted with interaction

dans une ouverture centrale d'une roue dentée.  in a central opening of a toothed wheel.

Selon La technique actuel Le, L'extrémité de cet arbre ou goujon portebras, insérée dans La roue dentée, est dotée d'un créne Lage, et la surface de l'ouverture centra Le de la roue dentée est lisse L'arbre ou goujon porte-bras est réalisé en un matériau (acier) de très bonne qualité, ou dans un matériau présentant des caractéristiques de résistance moyennes, et dans ce second cas, l'extrémité qui doit être plantée dans La roue dentée doit être soumise à un traitement de durcissement, par exemple par induction à haute fréquence. Dans un cas comme dans L'autre, Le dispositif de  According to the current technique Le, The end of this shaft or studs, inserted in the toothed wheel, is provided with a lage, and the surface of the central opening Le of the toothed wheel is smooth The tree or stud arm holder is made of a very good quality material (steel), or in a material with average resistance characteristics, and in this second case, the end which must be planted in The toothed wheel must be subjected to a treatment hardening, for example by high frequency induction. In one case as in the other, the device

transmission se révèle plutôt coûteux.  transmission is rather expensive.

Le but de la présente invention est de réaliser un dispositif de transmission du type indiqué ci-dessus, qui, à prestations sensiblement équivalentes, serait plus  The object of the present invention is to provide a transmission device of the type indicated above, which, with substantially equivalent performance, would be more

simp Le et moins onéreux à réaliser.  simp Le and less expensive to make.

Ce but est atteint selon L'invention, au moyen d'un dispositif de transmission du type spécifié ci- dessus, dont La principale caractéristique réside dans le fait que la surface de L'ouverture centra Le de ladite roue dentée est crénelée, et que L'extrémité de L'arbre p Lantée dans Ladite ouverture, avant Le montage, est Lisse. D'une manière qui convient, et qui est par ailleurs déjà connue, ladite roue dentée peut être réalisée par frittage ou découpure Avec ces types d'usinage, le crénelage de l'ouverture centrale de ladite roue dentée est réalisé de façon simple, et n'implique aucun coût  This object is achieved according to the invention, by means of a transmission device of the type specified above, the main characteristic of which resides in the fact that the surface of the central opening Le of said toothed wheel is crenellated, and that The end of the lantern shaft in said opening, before mounting, is smooth. In a suitable manner, and which is moreover already known, said toothed wheel can be produced by sintering or cutting. With these types of machining, the aliasing of the central opening of said toothed wheel is carried out in a simple manner, and no cost involved

supplémentaire substantiel.additional substantial.

Selon l'invention, il s'avère donc possible d'utiliser un arbre ou un goujon porte-bras en acier à basse résistance, sans qu'il soit nécessaire d'avoir recours à un traitement local de durcissement par induction, et sans qu'il soit nécessaire de créneler  According to the invention, it therefore turns out to be possible to use a shaft or an arm-carrying stud made of low-resistance steel, without the need to have recourse to a local induction hardening treatment, and without '' it is necessary to crenelate

l'extrémité dudit arbre.the end of said tree.

D'autres caractéristiques et avantages de L'invention vont apparaître à La Lecture de la  Other characteristics and advantages of the invention will appear on reading the

description détaillée qui suit, effectuée avec référence  detailed description which follows, carried out with reference

au dessin annexe, donné à pur titre d'exemple non limitatif, dans lequel est montré en perspective un dispositif de transmission selon l'invention, avant l'opération d'insertion avec interaction de l'arbre ou  in the accompanying drawing, given purely by way of nonlimiting example, in which a transmission device according to the invention is shown in perspective, before the insertion operation with interaction of the shaft or

goujon porte-bras, dans la roue dentée d'extrémité.  arm support stud, in the end gear.

En se reportant au dessin, un dispositif de transmission pour un essuie-glace pour véhicule automobile selon l'invention comprend un arbre ou goujon porte-bras 1, réalisé par exemple en acier de type 44 Mn 56  Referring to the drawing, a transmission device for a windscreen wiper for a motor vehicle according to the invention comprises a shaft or arm support stud 1, made for example of steel type 44 Mn 56

(résistance environ 880 N/mm 2).(resistance about 880 N / mm 2).

Une extrémité la de l'arbre 1 est lisse, et au cours du montage, e L Le est insérée avec interaction dans l'ouverture centrale 3 a d'une roue dentée 3 Comme cela apparaît sur le dessin, La surface de l'ouverture  One end of the shaft 1 is smooth, and during assembly, e L Le is interactively inserted into the central opening 3 a of a toothed wheel 3 As shown in the drawing, The surface of the opening

centrale 3 a de la roue dentée 3 est rayée ou crénelée.  central 3 a of the gear 3 is scratched or crenellated.

Cette roue dentée peut être, de façon appropriée,  This gear can be, suitably,

réalisée par frittage ou par découpure (potinçonnement).  made by sintering or cutting (punching).

Ces types d'usinage permettent de réaliser la roue dentée déjà dotée du crénelage ou rayage interne, sans que ceci ne comporte de difficulté particulière ou n'engendre  These types of machining make it possible to produce the toothed wheel already provided with the aliasing or internal scoring, without this presenting any particular difficulty or causing

d'augmentation sensible du coût.significant increase in cost.

L'extrémité la de l'arbre 1 est donc insérée avec interaction dans l'ouverture crénelée 3 a de La roue dentée 3, de manière à rendre lesdits éléments solidaires  The end 1a of the shaft 1 is therefore inserted with interaction in the crenellated opening 3a of the toothed wheel 3, so as to make said elements integral

en torsion et axialement.in torsion and axially.

2 -2 -

3 26684383 2668438

La solution selon l'invention s'avère donc plus avantageuse que les solutions antérieures, du point de vue économique ainsi que technologique. Nature L Lement, L'invention s'étend à toutes Les réalisations qui permettent d'obtenir Le même résu Ltat avec le même concept innovatif.  The solution according to the invention therefore proves to be more advantageous than the previous solutions, from the economic as well as technological point of view. Nature L Lement, The invention extends to all Realizations which allow to obtain The same Ltat result with the same innovative concept.

Claims (4)

REVENDICATIONS 1 Dispositif de transmission pour un essuie-glace pour véhicu Le automobile, comprenant un arbre ou goujon porte-bras ( 1) ayant une première extrémité (la) plantée avec interaction dans une ouverture centrale ( 3 a) d'une roue dentée ( 3), caractérisé par le fait que la surface de l'ouverture centrale ( 3 a) de ladite roue dentée ( 3) est crénelée ou rayée, et que l'extrémité (la) de l'arbre ( 1) insérée dans ladite ouverture ( 3 a) est lisse, préalablement au montage.  1 Transmission device for a windscreen wiper for a motor vehicle, comprising a shaft or arm support stud (1) having a first end (la) planted with interaction in a central opening (3 a) of a toothed wheel (3 ), characterized in that the surface of the central opening (3a) of said toothed wheel (3) is crenellated or scratched, and that the end (la) of the shaft (1) inserted in said opening ( 3 a) is smooth, prior to assembly. 2 Dispositif selon la revendication 1, caractérisé par le fait que le crénelage de l'ouverture centrale de2 Device according to claim 1, characterized in that the aliasing of the central opening of ladite roue dentée ( 3) est réalisé par frittage.  said toothed wheel (3) is produced by sintering. 3 Dispositif selon la revendication 1, caractérisé par Le fait que ladite roue dentée ( 3), avec son ouverture  3 Device according to claim 1, characterized in that said toothed wheel (3), with its opening centrale rayée ou crénelée, est réalisée par découpure -  striped or crenellated central unit, is produced by cutting - 4 -4 -
FR9113426A 1990-10-31 1991-10-30 TRANSMISSION DEVICE FOR A WINDSCREEN WIPER FOR A MOTOR VEHICLE. Expired - Fee Related FR2668438B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT06785390A IT1249535B (en) 1990-10-31 1990-10-31 TRANSMISSION DEVICE FOR A WINDSCREEN WIPER

Publications (2)

Publication Number Publication Date
FR2668438A1 true FR2668438A1 (en) 1992-04-30
FR2668438B1 FR2668438B1 (en) 1997-08-22

Family

ID=11305798

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9113426A Expired - Fee Related FR2668438B1 (en) 1990-10-31 1991-10-30 TRANSMISSION DEVICE FOR A WINDSCREEN WIPER FOR A MOTOR VEHICLE.

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Country Link
DE (1) DE4135652A1 (en)
FR (1) FR2668438B1 (en)
IT (1) IT1249535B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519910U1 (en) * 1995-12-15 1996-02-01 Hella Kg Hueck & Co, 59557 Lippstadt Accelerator pedal sender
DE19804954A1 (en) * 1998-02-07 1999-08-12 Itt Mfg Enterprises Inc Method for assembling a windshield wiper drive and drive produced by such a method
EP0987081A1 (en) * 1998-09-14 2000-03-22 Electrowatt Technology Innovation AG Method for the assembly of a wheel and a shaft and an apparatus for transmitting forces
DE202005000430U1 (en) * 2005-01-13 2006-05-24 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Attachment of drive element for adjusting seat in motor vehicle has drive element with opening for admission of second drive element whereby one of the surfaces of expandable section results in deformation
CN105840767A (en) * 2015-01-15 2016-08-10 米巴精密零部件(中国)有限公司 Gear assembly
AT522433B1 (en) * 2019-09-27 2020-11-15 Miba Sinter Austria Gmbh gear

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999704A (en) * 1955-09-13 1961-09-12 Haller John Tolerance ring
US3012799A (en) * 1957-07-12 1961-12-12 Ruth D Mayne Hub
FR1392631A (en) * 1964-02-04 1965-03-19 Ateliers Rene Halftermeyer Are New process for manufacturing pinions, in particular for variable capacitor multipliers and products obtained
US3962772A (en) * 1974-09-04 1976-06-15 Michigan Powdered Metal Products, Inc. Shaft-supported composite high-strength machine element and method of making the same
DE3319867A1 (en) * 1983-06-01 1984-12-20 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen Wiper device, in particular for windows of motor vehicles
EP0153409A1 (en) * 1983-08-03 1985-09-04 NIPPON PISTON RING CO., Ltd. Cam shaft and method of manufacturing thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999704A (en) * 1955-09-13 1961-09-12 Haller John Tolerance ring
US3012799A (en) * 1957-07-12 1961-12-12 Ruth D Mayne Hub
FR1392631A (en) * 1964-02-04 1965-03-19 Ateliers Rene Halftermeyer Are New process for manufacturing pinions, in particular for variable capacitor multipliers and products obtained
US3962772A (en) * 1974-09-04 1976-06-15 Michigan Powdered Metal Products, Inc. Shaft-supported composite high-strength machine element and method of making the same
DE3319867A1 (en) * 1983-06-01 1984-12-20 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen Wiper device, in particular for windows of motor vehicles
EP0153409A1 (en) * 1983-08-03 1985-09-04 NIPPON PISTON RING CO., Ltd. Cam shaft and method of manufacturing thereof

Also Published As

Publication number Publication date
DE4135652A1 (en) 1992-05-07
FR2668438B1 (en) 1997-08-22
IT1249535B (en) 1995-02-28
IT9067853A0 (en) 1990-10-31
IT9067853A1 (en) 1992-05-01

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