FR2943295A1 - ARRANGEMENT FOR THE MOUNTING OF A ROTARY ARM OF WIPER ARMS ON A CASING OF THE ACTUATION MOTOR - Google Patents

ARRANGEMENT FOR THE MOUNTING OF A ROTARY ARM OF WIPER ARMS ON A CASING OF THE ACTUATION MOTOR Download PDF

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Publication number
FR2943295A1
FR2943295A1 FR0901287A FR0901287A FR2943295A1 FR 2943295 A1 FR2943295 A1 FR 2943295A1 FR 0901287 A FR0901287 A FR 0901287A FR 0901287 A FR0901287 A FR 0901287A FR 2943295 A1 FR2943295 A1 FR 2943295A1
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France
Prior art keywords
housing
bellows
shaft
arrangement
sleeve
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Granted
Application number
FR0901287A
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French (fr)
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FR2943295B1 (en
Inventor
Jerome Lacipiere
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.)
Valeo Systemes dEssuyage SAS
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Valeo Systemes dEssuyage 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.)
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Publication date
Application filed by Valeo Systemes dEssuyage SAS filed Critical Valeo Systemes dEssuyage SAS
Priority to FR0901287A priority Critical patent/FR2943295B1/en
Priority to PCT/EP2010/001110 priority patent/WO2010105727A1/en
Publication of FR2943295A1 publication Critical patent/FR2943295A1/en
Application granted granted Critical
Publication of FR2943295B1 publication Critical patent/FR2943295B1/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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne un 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. Selon l'invention, 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).The invention relates to an arrangement for mounting a rotary shaft (2) of wiper arm (1) on the casing (3) of the actuating motor, the casing being provided with a through hole (4). of said tree. According to the invention, it comprises a flexible tubular bellows (8) secured to said housing (3) to the right of said orifice (4) and a sealing device disposed 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 D'ACTIONNEMENT L'invention concerne un agencement de montage d'un arbre rotatif de bras d'essuie glace sur le carter du moteur d'actionnement. 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. Un tel agencement pose un problème d'étanchéité à l'eau. FIELD OF THE INVENTION The invention relates to a mounting arrangement for a rotating wiper arm shaft on the casing of the actuating motor. 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. Such an arrangement poses a problem of watertightness.

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. 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. 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. Le carter du moteur est généralement en matière plastique et le 30 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. Selon un mode de réalisation, ledit dispositif d'étanchéité comporte un joint torique monté entre ledit soufflet et ledit arbre. De préférence, ledit dispositif d'étanchéité comporte une bague rigide supportant ledit joint torique et emboîtée sur ledit soufflet. 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. 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 made of plastic and the positioning of the orifice and its sleeve is poorly controlled. 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. According to one embodiment, said sealing device comprises an O-ring mounted between said bellows and said shaft. Preferably, said sealing device comprises a rigid ring supporting said O-ring and nested on said bellows.

Ladite bague est avantageusement en matière plastique. 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. Le bras d'essuie glace comporte de préférence un manchon tournée vers ledit carter et recouvrant partiellement ledit soufflet. L'invention est décrite ci-après plus en détail à l'aide de figures ne représentant qu'un mode de réalisation de l'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. 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. The invention is described below in more detail with the help of figures representing only one embodiment of the invention. Figure 1 is a perspective view of an arrangement according to the invention, the wiper arm is not mounted.

La figure 2 est une vue en coupe selon un plan de symétrie longitudinal de l'arbre. 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. 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. 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. 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. 20 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 has a sleeve 6 directed towards the motor housing and is fixed to the free end of the shaft by a conical interlock 7 and screwing a not shown nut. The mounting arrangement of the wiper arm rotating shaft on the actuating motor housing comprises a flexible tubular bellows 8, preferably of plastics material or EPDM type rubber, fitted to 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, supporting the O-ring 9 and nested on the bellows 8. To do this, the bellows 8 comprises a lower portion 8A which is fitted on the sleeve 5 of the housing by being applied on the housing 3 by means of tabs 8C and has a folded wall outwardly providing a high radial flexibility and an upper portion 8B which comprises a housing portion of the ring 10 and a conical end section which is partially covered by the sleeve 6 of the wiper arm lace. 20

Claims (6)

REVENDICATIONS1. 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). REVENDICATIONS1. Arrangement for mounting a rotary shaft (2) of the 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) in line with said orifice (4) and a sealing device disposed between said bellows (8) and said shaft (2). 2. Agencement selon la revendication précédente, caractérisé en ce 10 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). 15 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). 15 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 20 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). 25 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). 25
FR0901287A 2009-03-19 2009-03-19 ARRANGEMENT FOR THE MOUNTING OF A ROTARY ARM OF WIPER ARMS ON A CASING OF THE ACTUATION ENGINE Active FR2943295B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
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
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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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

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FR2943295A1 true FR2943295A1 (en) 2010-09-24
FR2943295B1 FR2943295B1 (en) 2011-03-04

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Cited By (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

Cited By (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

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Publication number Publication date
FR2943295B1 (en) 2011-03-04
WO2010105727A1 (en) 2010-09-23

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