WO2010105727A1 - Arrangement for mounting a rotary shaft of a wiper arm on the casing of the actuation motor - Google Patents

Arrangement for mounting a rotary shaft of a wiper arm on the casing of the actuation motor Download PDF

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Publication number
WO2010105727A1
WO2010105727A1 PCT/EP2010/001110 EP2010001110W WO2010105727A1 WO 2010105727 A1 WO2010105727 A1 WO 2010105727A1 EP 2010001110 W EP2010001110 W EP 2010001110W WO 2010105727 A1 WO2010105727 A1 WO 2010105727A1
Authority
WO
WIPO (PCT)
Prior art keywords
bellows
shaft
housing
casing
arrangement
Prior art date
Application number
PCT/EP2010/001110
Other languages
French (fr)
Inventor
Jérôme LACIPIERE
Original Assignee
Valeo Systemes D'essuyage
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 Systemes D'essuyage filed Critical Valeo Systemes D'essuyage
Publication of WO2010105727A1 publication Critical patent/WO2010105727A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3488—Means for mounting wiper arms onto the vehicle
    • B60S1/349—Means for mounting the wiper bearing to the vehicle body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16—Means for transmitting drive
    • B60S1/166—Means for transmitting drive characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement

Definitions

  • the invention relates to a mounting arrangement for a rotating wiper arm shaft on the casing of the actuating motor.
  • the shaft is introduced into an opening of the actuating motor housing, which is provided with a chimney or sleeve directed towards the outside of the housing and at the free end of the shaft the arm
  • the wiper is fixed, generally by a conical fit and screwing a nut.
  • the arm also has a sleeve directed towards the engine casing and which partially covers the casing chimney.
  • the invention solves this problem by providing a mounting arrangement of a wiper arm rotating shaft on the housing of the actuating motor which ensures a perfect seal and particularly suitable for a plastic housing.
  • the invention proposes, for this purpose, an arrangement for mounting a rotating wiper arm shaft on the casing of the actuating motor, the casing being provided with a passage opening of said shaft, characterized in that it comprises a flexible tubular bellows secured to said housing to the right of said orifice and a sealing device disposed between said bellows and said shaft.
  • the motor housing is generally plastic and the positioning of the orifice and its sleeve is poorly controlled. It As a result, the mounted shaft is not perfectly coaxial with the sleeve and therefore it is impossible to mount a simple seal between the shaft and the sleeve.
  • the mounting of a sealing device is possible according to the invention through the provision of a flexible tubular bellows.
  • said sealing device comprises an O-ring mounted between said bellows and said shaft.
  • said sealing device comprises a rigid ring supporting said O-ring and nested on said bellows.
  • Said ring is preferably made of plastic.
  • Said orifice is preferably provided with a sleeve directed towards the outside of the housing and said flexible tubular bellows is fitted on said sleeve.
  • the wiper arm preferably comprises a sleeve facing said housing and partially covering said bellows.
  • Figure 1 is a perspective view of an arrangement according to the invention, the wiper arm is not mounted.
  • Figure 2 is a sectional view along a longitudinal plane of symmetry of the shaft.
  • a wiper arm 1 is mounted on a rotary shaft 2 actuated by a motor contained in a housing 3.
  • This housing 3 is provided with a through hole 4 of the shaft provided with a sleeve 5 directed towards the outside of the housing.
  • the arm 1 also comprises a sleeve 6 directed towards the motor housing and is fixed to the free end of the shaft 'by a conical fitting 7 and screwing a not shown nut.
  • the mounting arrangement of the wiper arm rotating shaft on the actuating motor housing comprises a bellows flexible tubular 8, preferably made of plastic or rubber EPDM type, fitted on the sleeve 5 of the housing and a sealing device disposed between this bellows 8 and the shaft 2.
  • This sealing device comprises an O-ring 9 mounted between the bellows and the shaft by means of a rigid ring 10, preferably made of plastic material, supporting the O-ring 9 and nested on the bellows 8.
  • the bellows 8 comprises a lower portion 8A which is fitted on the sleeve 5 of the housing by being applied to the casing 3 by means of tabs 8C and has an outwardly bent wall providing a great radial flexibility and an upper portion 8B which comprises a housing portion of the ring 10 and a conical end portion which is partially covered by the sleeve 6 of the wiper arm.

Abstract

The invention relates to an arrangement for mounting the rotary shaft (2) of a wiper (1) arm on the casing (3) of the actuation motor, the casing being provided with an opening (4) for said shaft to pass therethrough. According to the invention, the arrangement comprises a flexible tubular bellows (8) rigidly connected to said casing (3) opposite said opening (4) and a sealing device arranged between said bellows (8) and said shaft (2).

Description

AGENCEMENT DE MONTAGE D'UN ARBRE ROTATIF DE BRAS D ESSUIE GLACE SUR UN CARTER DU MOTEUR ARRANGEMENT FOR THE MOUNTING OF A ROTARY ARM OF WIPER ARMS ON A CASING OF THE ENGINE
D'ACTIONNEMENTOPERATING
L'invention concerne un agencement de montage d'un arbre rotatif de bras d'essuie glace sur le carter du moteur d'actionnement.The invention relates to a mounting arrangement for a rotating wiper arm shaft on the casing of the actuating motor.
Pour un tel montage, l'arbre est introduit dans un orifice du carter du moteur d'actionnement, qui est pourvu d'une cheminée ou manchon dirigé vers l'extérieur du carter et à l'extrémité libre de l'arbre le bras d'essuie glace est fixé, en général par un emboîtement conique et vissage d'un écrou. Le bras comporte quant à lui également un manchon dirigé vers le carter du moteur et qui vient recouvrir partiellement la cheminée du carter.For such an assembly, the shaft is introduced into an opening of the actuating motor housing, which is provided with a chimney or sleeve directed towards the outside of the housing and at the free end of the shaft the arm The wiper is fixed, generally by a conical fit and screwing a nut. The arm also has a sleeve directed towards the engine casing and which partially covers the casing chimney.
Un tel agencement pose un problème d'étanchéité à l'eau. Malgré le recouvrement entre cheminée du carter et manchon du bras, de l'humidité peut s'introduire entre ces deux parties et dans le carter, ce qui est préjudiciable à un bon fonctionnement du moteur électrique d'actionnement.Such an arrangement poses a problem of watertightness. Despite the overlap between the housing chimney and sleeve of the arm, moisture can be introduced between these two parts and in the housing, which is detrimental to proper operation of the electric actuating motor.
L'invention résout ce problème en proposant un agencement de montage d'un arbre rotatif de bras d'essuie glace sur le carter du moteur d'actionnement qui assure une parfaite étanchéité et particulièrement adapté à un carter en matière plastique.The invention solves this problem by providing a mounting arrangement of a wiper arm rotating shaft on the housing of the actuating motor which ensures a perfect seal and particularly suitable for a plastic housing.
L'invention propose, pour ce faire, une agencement de montage d'un arbre rotatif de bras d'essuie glace sur le carter du moteur d'actionnement, le carter étant pourvu d'un orifice de passage du dit arbre, caractérisé en ce qu'il comporte un soufflet tubulaire flexible solidarisé au dit carter au droit du dit orifice et un dispositif d'étanchéité disposé entre ledit soufflet et ledit arbre.The invention proposes, for this purpose, an arrangement for mounting a rotating wiper arm shaft on the casing of the actuating motor, the casing being provided with a passage opening of said shaft, characterized in that it comprises a flexible tubular bellows secured to said housing to the right of said orifice and a sealing device disposed between said bellows and said shaft.
Le carter du moteur est généralement en matière plastique et le positionnement de l'orifice et de son manchon est mal maîtrisé. Il en résulte que l'arbre monté n'est pas parfaitement coaxial au manchon et il est donc impossible de monter un simple joint d'étanchéité entre l'arbre et le manchon. Le montage d'un dispositif d'étanchéité est possible selon l'invention grâce à la disposition d'un soufflet tubulaire flexible.The motor housing is generally plastic and the positioning of the orifice and its sleeve is poorly controlled. It As a result, the mounted shaft is not perfectly coaxial with the sleeve and therefore it is impossible to mount a simple seal between the shaft and the sleeve. The mounting of a sealing device is possible according to the invention through the provision of a flexible tubular bellows.
Selon un mode de réalisation, ledit dispositif d'étanchéité comporte un joint torique monté entre ledit soufflet et ledit arbre.According to one embodiment, said sealing device comprises an O-ring mounted between said bellows and said shaft.
De préférence, ledit dispositif d'étanchéité comporte une bague rigide supportant ledit joint torique et emboîtée sur ledit soufflet. Ladite bague est avantageusement en matière plastique.Preferably, said sealing device comprises a rigid ring supporting said O-ring and nested on said bellows. Said ring is preferably made of plastic.
Ledit orifice est de préférence pourvu d'un manchon dirigé vers l'extérieur du carter et ledit soufflet tubulaire flexible est emmanché sur ledit manchon.Said orifice is preferably provided with a sleeve directed towards the outside of the housing and said flexible tubular bellows is fitted on said sleeve.
Le bras d'essuie glace comporte de préférence un manchon tournée vers ledit carter et recouvrant partiellement ledit soufflet.The wiper arm preferably comprises a sleeve facing said housing and partially covering said bellows.
L'invention est décrite ci-après plus en détail ,à l'aide de figures ne représentant qu'un mode de réalisation de l'invention.The invention is described below in more detail, with the aid of figures representing only one embodiment of the invention.
La figure 1 est une vue en perspective d'un agencement conforme à l'invention, le bras d'essuie glace n'étant pas monté. La figure 2 est une vue en coupe selon un plan de symétrie longitudinal de l'arbre.Figure 1 is a perspective view of an arrangement according to the invention, the wiper arm is not mounted. Figure 2 is a sectional view along a longitudinal plane of symmetry of the shaft.
Un bras d'essuie glace 1 est monté sur un arbre rotatif 2 actionné par un moteur contenu dans un carter 3. Ce carter 3 est pour ce faire pourvu d'un orifice de passage 4 de l'arbre pourvu d'un manchon 5 dirigé vers l'extérieur du carter.A wiper arm 1 is mounted on a rotary shaft 2 actuated by a motor contained in a housing 3. This housing 3 is provided with a through hole 4 of the shaft provided with a sleeve 5 directed towards the outside of the housing.
Le bras 1 comporte quant à lui également un manchon 6 dirigé vers le carter du moteur et est fixé à l'extrémité libre de l'arbre' par un emboîtement conique 7 et vissage d'un écrou non représenté.The arm 1 also comprises a sleeve 6 directed towards the motor housing and is fixed to the free end of the shaft 'by a conical fitting 7 and screwing a not shown nut.
L'agencement de montage de l'arbre rotatif de bras d'essuie glace sur le carter du moteur d'actionnement comporte un soufflet tubulaire flexible 8, de préférence en matière plastique ou en caoutchouc de type EPDM, emmanché sur le manchon 5 du carter et un dispositif d'étanchéité disposé entre ce soufflet 8 et l'arbre 2. Ce dispositif d'étanchéité comporte un joint torique 9 monté entre le soufflet et l'arbre grâce à une bague rigide 10, de préférence en matière plastique, supportant le joint torique 9 et emboîtée sur le soufflet 8.The mounting arrangement of the wiper arm rotating shaft on the actuating motor housing comprises a bellows flexible tubular 8, preferably made of plastic or rubber EPDM type, fitted on the sleeve 5 of the housing and a sealing device disposed between this bellows 8 and the shaft 2. This sealing device comprises an O-ring 9 mounted between the bellows and the shaft by means of a rigid ring 10, preferably made of plastic material, supporting the O-ring 9 and nested on the bellows 8.
Pour ce faire, le soufflet 8 comporte une partie inférieure 8A qui est emmanchée sur le manchon 5 du carter en venant s'appliquer sur le carter 3 au moyen de pattes 8C et comporte une paroi pliée vers l'extérieur assurant une grande flexibilité radiale et une partie supérieure 8B qui comporte un tronçon de logement de la bague 10 et un tronçon d'extrémité conique qui est recouvert partiellement par le manchon 6 du bras d'essuie glace. To do this, the bellows 8 comprises a lower portion 8A which is fitted on the sleeve 5 of the housing by being applied to the casing 3 by means of tabs 8C and has an outwardly bent wall providing a great radial flexibility and an upper portion 8B which comprises a housing portion of the ring 10 and a conical end portion which is partially covered by the sleeve 6 of the wiper arm.

Claims

REVENDICATIONS
1. Agencement de montage d'un arbre rotatif (2) de bras d'essuie glace (1) sur le carter (3) du moteur d'actionnement, le carter étant pourvu d'un orifice de passage (4) du dit arbre, caractérisé en ce qu'il comporte un soufflet tubulaire flexible (8) solidarisé au dit carter (3) au droit du dit orifice (4) et un dispositif d'étanchéité disposé entre ledit soufflet (8) et ledit arbre (2).1. Arrangement for mounting a rotating shaft (2) of wiper arm (1) on the housing (3) of the actuating motor, the housing being provided with a passage opening (4) of said shaft , characterized in that it comprises a flexible tubular bellows (8) secured to said housing (3) to the right of said hole (4) and a sealing device disposed between said bellows (8) and said shaft (2).
2. Agencement selon la revendication précédente, caractérisé en ce que ledit dispositif d'étanchéité comporte un joint torique (9) monté entre ledit soufflet (8) et ledit arbre (2).2. Arrangement according to the preceding claim, characterized in that said sealing device comprises an O-ring (9) mounted between said bellows (8) and said shaft (2).
3. Agencement selon la revendication précédente, caractérisé en ce que ledit dispositif d'étanchéité comporte une bague rigide (10) supportant ledit joint torique (9) et emboîtée sur ledit soufflet (8).3. Arrangement according to the preceding claim, characterized in that said sealing device comprises a rigid ring (10) supporting said O-ring (9) and nested on said bellows (8).
4. Agencement selon la revendication précédente, caractérisé en ce que ladite bague (10) est en matière plastique.4. Arrangement according to the preceding claim, characterized in that said ring (10) is plastic.
5. Agencement selon l'une des revendications précédentes, caractérisé ledit orifice est pourvu d'un manchon (5) dirigé vers l'extérieur du carter et ledit soufflet tubulaire flexible (8) est emmanché sur ledit manchon (5).5. Arrangement according to one of the preceding claims, characterized said orifice is provided with a sleeve (5) directed outwardly of the housing and said flexible tubular bellows (8) is fitted on said sleeve (5).
6. Agencement selon l'une des revendications précédentes, caractérisé en ce que le bras d'essuie glace (1) comporte un manchon (6) tourné vers ledit carter (3) et recouvrant partiellement ledit soufflet (8). 6. Arrangement according to one of the preceding claims, characterized in that the wiper arm (1) comprises a sleeve (6) facing said housing (3) and partially covering said bellows (8).
PCT/EP2010/001110 2009-03-19 2010-02-23 Arrangement for mounting a rotary shaft of a wiper arm on the casing of the actuation motor WO2010105727A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0901287 2009-03-19
FR0901287A FR2943295B1 (en) 2009-03-19 2009-03-19 ARRANGEMENT FOR THE MOUNTING OF A ROTARY ARM OF WIPER ARMS ON A CASING OF THE ACTUATION ENGINE

Publications (1)

Publication Number Publication Date
WO2010105727A1 true WO2010105727A1 (en) 2010-09-23

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PCT/EP2010/001110 WO2010105727A1 (en) 2009-03-19 2010-02-23 Arrangement for mounting a rotary shaft of a wiper arm on the casing of the actuation motor

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WO (1) WO2010105727A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010044100B4 (en) 2010-11-18 2018-08-02 Robert Bosch Gmbh Drive device for a windshield wiper device in a vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2142099A1 (en) * 1971-07-02 1973-01-26 Bosch
FR2216792A5 (en) * 1973-02-01 1974-08-30 Bosch Gmbh Robert
DE19644461A1 (en) * 1996-10-25 1998-04-30 Bayerische Motoren Werke Ag Vehicle windscreen wiping device
EP1837256A1 (en) * 2006-03-24 2007-09-26 Robert Bosch Gmbh Windscreen wiper drive assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2142099A1 (en) * 1971-07-02 1973-01-26 Bosch
FR2216792A5 (en) * 1973-02-01 1974-08-30 Bosch Gmbh Robert
DE19644461A1 (en) * 1996-10-25 1998-04-30 Bayerische Motoren Werke Ag Vehicle windscreen wiping device
EP1837256A1 (en) * 2006-03-24 2007-09-26 Robert Bosch Gmbh Windscreen wiper drive assembly

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Publication number Publication date
FR2943295A1 (en) 2010-09-24
FR2943295B1 (en) 2011-03-04

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