WO2004028874A1 - Fixing arrangement for a windscreen wiper comprising a retracting driving shaft provided with a divisible nut - Google Patents

Fixing arrangement for a windscreen wiper comprising a retracting driving shaft provided with a divisible nut Download PDF

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Publication number
WO2004028874A1
WO2004028874A1 PCT/EP2003/010256 EP0310256W WO2004028874A1 WO 2004028874 A1 WO2004028874 A1 WO 2004028874A1 EP 0310256 W EP0310256 W EP 0310256W WO 2004028874 A1 WO2004028874 A1 WO 2004028874A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
section
body structure
sole
arrangement according
Prior art date
Application number
PCT/EP2003/010256
Other languages
French (fr)
Inventor
Joël PRINCET
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
Priority to AU2003270198A priority Critical patent/AU2003270198A1/en
Priority to EP03750548A priority patent/EP1545946A1/en
Priority to JP2004538906A priority patent/JP4373918B2/en
Publication of WO2004028874A1 publication Critical patent/WO2004028874A1/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
    • 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
    • B60S1/0488—Wiper arrangement for crash protection or impact absorption
    • 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
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components
    • 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
    • B60S1/043—Attachment of the wiper assembly to the vehicle
    • B60S1/0436—Attachement of separate wiper shaft holders to the vehicle

Definitions

  • the invention provides an arrangement for fixing a wiping mechanism for a motor vehicle allows the wiper brushes to be removed from the drive mechanism upon impact of the vehicle, in particular with a pedestrian.
  • the invention more particularly provides an arrangement for fixing a wiping mechanism for a motor vehicle, of the type comprising at least one output bearing for guiding in rotation and for fixing a drive shaft which extends axially. in a substantially vertical direction, of the type in which the output bearing comprises a barrel in which the shaft is guided in rotation, and a flange for fixing the output bearing with a body structure element of the vehicle, of the type in which the sole has an upper support face against a lower face of the body structure element and a threaded portion of vertical axis A which extends vertically upwards from the upper support face, crossing a coaxial orifice of the body structure element and which is able to cooperate with a nut having a lower annular tightening surface for fixing the sole with the structure element of ca isse.
  • the wiping mechanism which is arranged in the compartment engine near the cockpit, could penetrate inside the cockpit through the windshield bay under the effect of the shock.
  • the object of the invention is to propose an assembly which allows the entire drive shaft to be erased, and which allows reassembly without the need to change the output bearing.
  • the invention provides an arrangement of the type described above, characterized in that the nut is capable of separating into at least two parts when the wiping mechanism is subjected to a violent impact whose vertical component is oriented downwards and is greater than a determined value, allowing a separation of the sole from the body structure element.
  • the nut comprises two coaxial cylindrical sections, a first radially inner section comprising a thread which cooperates with the threading of the threaded portion of the soleplate, and a second radially outer section, the annular surface of the lower end of which forms the bearing and clamping surface against an upper face opposite the body structure element, which is connected to the first section by at least one strip of material which is capable of breaking upon impact in order to separate the two cylindrical sections;
  • the dimensions of the first section are determined so that it is able to pass through the orifice of the body structure element, after its separation from the second section;
  • the strip of material connects the external cylindrical wall of the first section to the internal cylindrical wall of the second section;
  • the strip of material consists of a horizontal annular strip coaxial with the cylindrical sections;
  • the external cylindrical walls of the two sections of the nut are capable of cooperating each with a cylindrical portion complementary to a maneuvering element of the single nut;
  • the first section projects upwards relative to the upper end of the second section
  • the first section comprises a ring which extends radially inwards from the upper end of the first section, the lower face of which abuts against an upper annular face of the threaded portion of the sole when the nut is in mounted position with the threaded portion of the sole;
  • the arrangement comprises at least one elastically deformable element axially interposed between the sole and the body structure element and / or the body structure element and the nut respectively;
  • FIG. 1 is a schematic exploded representation in perspective of the mounting of the bearing outlet which includes a nut according to the teachings of the invention
  • - Figure 2 is a view similar to that of Figure 1 in which the elements are shown in the assembled position;
  • - Figure 3 is a section of the assembly shown in Figure 3 along a vertical plane passing through the axis of rotation of the drive shaft;
  • Figure 4 is a view similar to that of Figure 3 in which the output bearing and the guide shaft are shown after the nut has broken, according to the invention.
  • a wiping mechanism 20 of a window of a motor vehicle which comprises an output bearing 22, and a shaft 24 for driving a wiper blade -glass (not shown).
  • the output bearing 22 allows the guiding in rotation and the fixing of the shaft 24. It comprises a tubular barrel 26 of vertical axis A which is designed to receive, in rotation about the axis A, the shaft 24.
  • the upper end 36 of the shaft 24 protrudes axially outwards beyond the upper end of the barrel 26 so as to allow the mounting of the wiper on a conical bearing surface 38, in the notched occurrence, against which the wiper is intended to be tightened axially by a nut (not shown) screwed onto a threaded portion of the upper end 36 of the shaft 24.
  • crank 40 is provided which is mounted in rotation with the shaft 24, substantially perpendicular to the axis A of the barrel 26.
  • crank 40 For its connection with a control linkage 44, itself driven by a geared motor (not shown), the crank 40 comprises, at its free longitudinal end 42 opposite its end for fixing to the shaft 24, a spherical ball joint (not shown), which is intended to be received in a housing of complementary shape (not shown) carried by the linkage 44.
  • the outlet bearing 22 For its attachment to a body structure element 30 of the vehicle, the outlet bearing 22 includes an annular sole
  • the sole 32 comprises a cylindrical body 46 which passes through an orifice 50 of complementary diameter to the body structure element 30 when the outlet bearing 22 is in the mounted position, the sole 32 also comprises a lower support plate 52, of annular shape which extends radially outwards from the lower end 46i of the cylindrical body 46.
  • the sole 32 is fixed with the body structure element 30 via the external cylindrical face 46e of the cylindrical body 46 which is threaded and which is able to cooperate with a nut 54 having a lower annular bearing surface 54i on the upper horizontal face 30s of the body structure element 30 for the sole 32, and by means of the planar upper face 52s of the lower support plate 52 which bears against a lower face facing opposite 30i of the body structure element 30.
  • the body structure element 30 is tightened between the nut 54 and the lower support plate 52.
  • the nut 54 is able to separate into two parts.
  • the nut 54 comprises two coaxial cylindrical sections 56, 58, which are connected together by a strip of material 60 which is capable of breaking on impact in order to separate the two cylindrical sections 56, 58.
  • the first cylindrical section 56 radially inside, has a thread which cooperates with the threading of the external cylindrical face 46e of the cylindrical body 46 of the sole 32.
  • the outside diameter of the first cylindrical section 56 is less than the diameter of the orifice 50 of the body structure element 30 so that it is able to pass through the orifice 50 after being detached from the second inner cylindrical section 58.
  • the second cylindrical section 58 radially outer, has an inner diameter greater than the diameter of the orifice 50 of the body structure element 30, so that its lower annular face forms the lower bearing face 54i of the nut 54 on the upper face 30s of the body structure element 30, around the orifice 50.
  • the strip of material 60 consists of an annular strip which connects the external cylindrical wall of the first section 56 to the internal cylindrical wall of the second section 58.
  • the two cylindrical sections 56, 58 can be connected differently, for example by several strips of radial material distributed angularly with respect to the axis A.
  • the assembly of the nut 54 on the cylindrical body 46 of the sole 32 is carried out by screwing, and so that the assembly of the sole 32 on the body structure element 30 is sufficiently rigid, it is necessary to apply a certain torque for tightening the nut 54.
  • the respective external cylindrical walls of the two cylindrical sections 56, 58 are each capable of cooperating with a complementary cylindrical portion of the same operating element so that 'They pivot identically around the vertical axis, and therefore that the strip of material 60 is not stressed when the nut 54 is tightened.
  • the respective external cylindrical walls of the two cylindrical sections 56, 58- are hexagonal, in the manner of conventional hexagonal nuts, however, it will be understood that the external cylindrical walls of two cylindrical sections 56, 58 may each have a different shape, without departing from the scope of the invention.
  • the inner cylindrical section 56 projects upwards relative to the upper end of the outer cylindrical section 58, it is then possible to access radially the two external cylindrical walls of the two cylindrical sections 56, 58, the operation of the nut 54 can then have the shape of an open-end wrench.
  • the key for operating the nut 54 consists of a torque wrench allowing the operator to apply a tightening torque of the nut 54 relatively precise.
  • the inner cylindrical section 56 has a horizontal ring 62 which extends radially inward from its upper end 56s, and whose lower face 62i of the horizontal ring 62 is extended downward by stops 64 which abut against the upper annular face 46s of the cylindrical body 46 when the nut 54 is in a position for which the flange 32 is considered to be fixed to the structural element of box 30.
  • the damping means comprise a first damper element 66 which is interposed axially between the sole 32 and the body structure element 30, and a second damper element 68 which is interposed axially between the body structure element 30 and nut 54.
  • the two shock-absorbing elements 66, 68 are elastically deformable elements so that the tightening of the nut 54 causes the shock-absorbing elements 66, 68 to be crushed. They are for example made of a material elastomer or rubber, and they are generally annular in shape.
  • the internal diameter of the first damper element 66 is substantially equal to the external diameter of the cylindrical body 46 of the sole 32 so as to achieve its axial positioning relative to the sole 32.
  • the second damper element 68 comprises a body 70 of generally rectangular section and an annular lip 72 which extends vertically upwards from the internal edge of the body 70, of external diameter substantially equal to the internal diameter of the external cylindrical section 58, of so as to achieve its axial positioning relative to the nut 54.
  • the body structure element 30 comprises an annular section 74 which extends vertically upwards and which delimits the orifice 50 which is crossed by the sole 32.
  • the external cylindrical face 70e forms an axial centering surface of the nut 54, and therefore of the sole 32, by means of the second damper element 68, making it possible to axially position the sole 32 relative to the element body structure 30.
  • the upper part of the drive mechanism 20, that is to say the nut 54 and the upper end 36 of the shaft 24, is generally arranged outside the motor vehicle and exposed to various attacks dust and bad weather.
  • the inner edge of the horizontal ring 62 of the nut 54 is extended radially inward by a seal 72 which makes it possible to prevent any intrusion of foreign elements along the shaft 24.
  • the damper elements 66, 68 perform, in addition to their damping function, a sealing function between the body structure element 30 and the '' nut 54 the sole 32, of such that it is impossible for any foreign element to enter the drive mechanism 20.
  • the nut 54 is made by molding plastic material, however, it will be understood that the nut can be made of a metallic material, without departing from the scope of the invention.
  • a wiping mechanism 20 has been described in which the sole 32 is coaxial with the shaft guide shaft 24. However, it will be understood that the invention also applies to a wiping mechanism 20 for which the axis the vertical of the sole is horizontally offset with respect to the axis A of the shaft 26 for guiding the shaft 24.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Vibration Prevention Devices (AREA)
  • Sealing Devices (AREA)

Abstract

The invention relates to a fixing arrangement for the windscreen wiper (20) of a motor vehicle comprising at least one bearing bracket out-feed (22) used for guiding and fixing a rotatable driving shaft (24) which is provided with a flange (32) for attaching said bearing bracket out feed (22) to a vehicle body (30). Said flange (32) comprises a threaded portion (46) of the vertical axis A which interacts with a nut (54) provided with an internal clamping annular surface (54i) for fixing the flange (32) to the structural element of the body (30). Said invention is characterised in that the nut (54) can be divided into at least two parts (56, 58) when the windscreen wiper (20) is exposed to a violent impact whose vertical component is oriented downwards and is greater than a predetermined value, thereby making it possible to release the flange (32) from the structural element of the body (30).

Description

"Agencement pour la fixation d'un mécanisme d'essuyage comportant un écrou sécable permettant l'effacement de l'arbre d'entraînement." "Arrangement for fixing a wiping mechanism comprising a breakaway nut enabling the drive shaft to be erased."
L'invention propose un agencement pour la fixation d'un mécanisme d'essuyage pour véhicule automobile permet l'effacement du mécanisme d'entraînement des balais d'essuyage lors de l'impact du véhicule notamment avec un piéton.The invention provides an arrangement for fixing a wiping mechanism for a motor vehicle allows the wiper brushes to be removed from the drive mechanism upon impact of the vehicle, in particular with a pedestrian.
L'invention propose plus particulièrement un agencement pour la fixation d'un mécanisme d'essuyage pour véhicule automobile, du type comportant au moins un palier de sortie de guidage en rotation et de fixation d'un arbre d'entraînement qui s'étend axialement suivant une direction sensiblement verticale, du type dans lequel le palier de sortie comporte un fût dans lequel l'arbre est guidé en rotation, et une semelle pour la fixation du palier de sortie avec un élément de structure de caisse du véhicule, du type dans lequel la semelle comporte une face supérieure d'appui contre une face inférieure de l'élément de structure de caisse et une portion filetée d'axe vertical A qui s'étend verticalement vers le haut depuis la face supérieure d'appui , en traversant un orifice coaxial de l'élément de structure de caisse et qui est apte à coopérer avec un écrou comportant une surface annulaire inférieure de serrage pour fixer la semelle avec l'élément de structure de caisse. On a noté qu'en cas de collision du véhicule avec un piéton, la partie du mécanisme d'essuie-glace qui s'étend à l'extérieur du véhicule constitue un objet contondant qui risque de provoquer des blessures. On a aussi noté que la partie du mécanisme d'essuyage qui s'étend sous le bord arrière du capot pouvait générer une déformation du capot et ainsi le transformer en un objet contondant.The invention more particularly provides an arrangement for fixing a wiping mechanism for a motor vehicle, of the type comprising at least one output bearing for guiding in rotation and for fixing a drive shaft which extends axially. in a substantially vertical direction, of the type in which the output bearing comprises a barrel in which the shaft is guided in rotation, and a flange for fixing the output bearing with a body structure element of the vehicle, of the type in which the sole has an upper support face against a lower face of the body structure element and a threaded portion of vertical axis A which extends vertically upwards from the upper support face, crossing a coaxial orifice of the body structure element and which is able to cooperate with a nut having a lower annular tightening surface for fixing the sole with the structure element of ca isse. It has been noted that in the event of a vehicle collision with a pedestrian, the part of the wiper mechanism which extends outside the vehicle constitutes a blunt object which is liable to cause injury. It was also noted that the part of the wiping mechanism which extends under the rear edge of the hood could generate a deformation of the hood and thus transform it into a blunt object.
. On a aussi remarqué que, en cas d'accident violent, le mécanisme d'essuyage, qui est agencé dans le compartiment moteur à proximité de l'habitacle, pouvait pénétrer à l'intérieur de l'habitacle par la baie de pare-brise sous l'effet du choc.. It has also been noted that, in the event of a violent accident, the wiping mechanism, which is arranged in the compartment engine near the cockpit, could penetrate inside the cockpit through the windshield bay under the effect of the shock.
L'intrusion accidentelle d'un élément aussi massif se révèle alors dangereux pour la sécurité des passagers et il est donc apparu nécessaire de mieux prévoir le comportement du mécanisme d'essuyage en casThe accidental intrusion of such a massive element then turns out to be dangerous for the safety of passengers and it therefore appeared necessary to better predict the behavior of the wiping mechanism in the event of
On connaît l'existence de moyens permettant un effacement du palier de sortie, notamment dans les documents FR-A-2.733.474 et GB-A-2.327.598 qui décrivent chacun un palier de sortie de fixation qui comporte des zones d'amorce de rupture, et dans le brevet WO-A-99.38736 qui décrit des moyens permettant à l'arbre d'entraînement de coulisser axialement dans le fût en cas d'impact.We know of the existence of means for erasing the output bearing, in particular in documents FR-A-2,733,474 and GB-A-2,327,598 which each describe a fixing output bearing which includes initiation zones and in patent WO-A-99.38736 which describes means allowing the drive shaft to slide axially in the barrel in the event of impact.
Cependant, ces solutions font appel soit à un élément de conception complexe que l'on est obligé de changer après chaque emploi, et qui implique un coût élevé, soit à un agencement qui permet un effacement de l'arbre d'entraînement qui peut s'avérer insuffisant pour garantir une sécurité suffisante, et qui peut permettre à l'arbre de revenir en position initiale et donc réduire ainsi la sécurité.However, these solutions use either a complex design element which is forced to change after each use, and which involves a high cost, or an arrangement which allows the drive shaft to be erased which can '' prove insufficient to guarantee sufficient security, and which can allow the shaft to return to the initial position and thus reduce security.
L'invention a pour but de proposer un montage qui permette l'effacement de la totalité de l'arbre d'entraînement, et qui permet un remontage sans qu'il soit nécessaire de changer le palier de sortie. Dans ce but, l'invention propose un agencement du type décrit précédemment, caractérisé en ce que l'écrou est apte à se séparer en au moins deux parties lorsque le mécanisme d'essuyage est soumis à un impact violent dont la composante verticale est orientée vers le bas et est supérieure à une valeur déterminée, permettant une désolidarisation de la semelle d'avec l'élément de structure de caisse.The object of the invention is to propose an assembly which allows the entire drive shaft to be erased, and which allows reassembly without the need to change the output bearing. For this purpose, the invention provides an arrangement of the type described above, characterized in that the nut is capable of separating into at least two parts when the wiping mechanism is subjected to a violent impact whose vertical component is oriented downwards and is greater than a determined value, allowing a separation of the sole from the body structure element.
Selon d'autres caractéristiques de l'invention : - l'écrou comporte deux tronçons cylindriques coaxiaux, un premier tronçon radialement intérieur comportant un taraudage qui coopère avec le filetage de la portion filetée de la semelle, et un deuxième tronçon radialement extérieur, dont la surface annulaire d'extrémité inférieure forme la surface d'appui et de serrage contre une face supérieure en vis-à-vis de l'élément de structure de caisse, qui est relié au premier tronçon par au moins une bande de matière qui est apte à rompre lors de l'impact pour désolidariser les deux tronçons cylindriques ;According to other characteristics of the invention: - the nut comprises two coaxial cylindrical sections, a first radially inner section comprising a thread which cooperates with the threading of the threaded portion of the soleplate, and a second radially outer section, the annular surface of the lower end of which forms the bearing and clamping surface against an upper face opposite the body structure element, which is connected to the first section by at least one strip of material which is capable of breaking upon impact in order to separate the two cylindrical sections;
- les dimensions du premier tronçon sont déterminées de manière qu'il soit apte à traverser l'orifice de l'élément de structure de caisse, après sa désolidarisation d'avec le deuxième tronçon ;- The dimensions of the first section are determined so that it is able to pass through the orifice of the body structure element, after its separation from the second section;
- la bande de matière relie la paroi cylindrique externe du premier tronçon à la paroi cylindrique interne du deuxième tronçon ; - la bande de matière consiste en une bande annulaire horizontale coaxiale aux tronçons cylindriques ;- The strip of material connects the external cylindrical wall of the first section to the internal cylindrical wall of the second section; - The strip of material consists of a horizontal annular strip coaxial with the cylindrical sections;
- les parois cylindriques externes des deux tronçons de l'écrou sont aptes à coopérer chacune avec une portion cylindrique complémentaire d'un élément de manœuvre de l'écrou unique ;- The external cylindrical walls of the two sections of the nut are capable of cooperating each with a cylindrical portion complementary to a maneuvering element of the single nut;
- le premier tronçon fait saillie vers le haut par rapport à l'extrémité supérieure du deuxième tronçon ;- The first section projects upwards relative to the upper end of the second section;
- le premier tronçon comporte un anneau qui s'étend radialement vers l'intérieur depuis l'extrémité supérieure du premier tronçon, dont la face inférieure vient en butée contre une face annulaire supérieure de la portion filetée de la semelle lorsque l'écrou est en position montée avec la portion filetée de la semelle ;the first section comprises a ring which extends radially inwards from the upper end of the first section, the lower face of which abuts against an upper annular face of the threaded portion of the sole when the nut is in mounted position with the threaded portion of the sole;
- l'agencement comporte au moins un élément déformable elastiquement interposé axialement entre la semelle et l'élément de structure de caisse et/ou l'élément de structure de caisse et l'écrou respectivement ;- The arrangement comprises at least one elastically deformable element axially interposed between the sole and the body structure element and / or the body structure element and the nut respectively;
- la portion filetée de la semelle et l'écrou sont coaxiaux au fût de guidage. D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit pour la • compréhension de laquelle on se reportera aux dessins annexés dans lesquels : - la figure 1 est une représentation schématique en perspective éclatée du montage du palier de sortie qui comporte un écrou conforme aux enseignements de l'invention ;- the threaded portion of the base and the nut are coaxial with the guide barrel. Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which: FIG. 1 is a schematic exploded representation in perspective of the mounting of the bearing outlet which includes a nut according to the teachings of the invention;
- la figure 2 est une vue similaire à celle de la figure 1 dans laquelle les éléments sont représentés en position montée ; - la figure 3 est une section du montage représenté à la figure 3 suivants un plan vertical passant par l'axe de rotation de l'arbre d'entraînement ; et- Figure 2 is a view similar to that of Figure 1 in which the elements are shown in the assembled position; - Figure 3 is a section of the assembly shown in Figure 3 along a vertical plane passing through the axis of rotation of the drive shaft; and
- la figure 4 est une vue similaire à celle de la figure 3 dans laquelle le palier de sortie et l'arbre de guidage sont représentés après que l'écrou se soit rompu, conformément à l'invention.- Figure 4 is a view similar to that of Figure 3 in which the output bearing and the guide shaft are shown after the nut has broken, according to the invention.
Pour la description de l'invention, on adoptera à titre non limitatif les orientations verticale, longitudinale et transversale selon le repère V, L, T indiqué aux figures. Dans la description qui va suivre, des éléments identiques, similaires ou analogues seront désignés par les mêmes chiffres de référence.For the description of the invention, the vertical, longitudinal and transverse orientations will be adopted, without limitation, according to the reference V, L, T indicated in the figures. In the description which follows, identical, similar or analogous elements will be designated by the same reference numbers.
On a représenté aux figures 1 à 4, un mécanisme d'essuyage 20 d'une vitre d'un véhicule automobile (non représentée) qui comporte un palier de sortie 22, et un arbre 24 d'entraînement d'un balai d'essuie-glace (non représenté).There is shown in Figures 1 to 4, a wiping mechanism 20 of a window of a motor vehicle (not shown) which comprises an output bearing 22, and a shaft 24 for driving a wiper blade -glass (not shown).
Le palier de sortie 22 permet le guidage en rotation et la fixation de l'arbre 24. Elle comporte un fût 26 tubulaire d'axe A vertical qui est prévu pour recevoir à rotation autour de l'axe A, l'arbre 24.The output bearing 22 allows the guiding in rotation and the fixing of the shaft 24. It comprises a tubular barrel 26 of vertical axis A which is designed to receive, in rotation about the axis A, the shaft 24.
L'extrémité supérieure 36 de l'arbre 24 dépasse axialement vers l'extérieur au-delà de l'extrémité supérieure du fût 26 de manière à permettre le montage de l'essuie-glace sur une surface de portée conique 38, en l'occurrence crantée, contre laquelle l'essuie-glace est destiné à être serré axialement par un écrou (non représenté) vissé sur une portion filetée de l'extrémité supérieure 36 de l'arbre 24.The upper end 36 of the shaft 24 protrudes axially outwards beyond the upper end of the barrel 26 so as to allow the mounting of the wiper on a conical bearing surface 38, in the notched occurrence, against which the wiper is intended to be tightened axially by a nut (not shown) screwed onto a threaded portion of the upper end 36 of the shaft 24.
Pour permettre l'entraînement en rotation de l'arbre 24, il est prévu une manivelle 40 qui est montée solidaire en rotation de l'arbre 24, sensiblement perpendiculaire à l'axe A du fût 26.To allow the shaft 24 to be driven in rotation, a crank 40 is provided which is mounted in rotation with the shaft 24, substantially perpendicular to the axis A of the barrel 26.
Pour sa liaison avec une tringlerie de commande 44, elle- même entraînée par un motoréducteur (non représenté), la manivelle 40 comporte, à son extrémité longitudinale libre 42 opposée à son extrémité de fixation sur l'arbre 24, une rotule sphérique (non représentée), qui est destinée à être reçue dans un logement de forme complémentaire (non représenté) porté par la tringlerie 44.For its connection with a control linkage 44, itself driven by a geared motor (not shown), the crank 40 comprises, at its free longitudinal end 42 opposite its end for fixing to the shaft 24, a spherical ball joint (not shown), which is intended to be received in a housing of complementary shape (not shown) carried by the linkage 44.
Pour sa fixation sur un élément de structure de caisse 30 du véhicule, le palier de sortie 22 comporte une semelle annulaireFor its attachment to a body structure element 30 of the vehicle, the outlet bearing 22 includes an annular sole
32 coaxiale au fût 26 dont l'extrémité supérieure 32s est reliée à l'extrémité supérieure du fût 26 par une bande de matière 28, et par des nervures de rigidification 34.32 coaxial with the barrel 26, the upper end 32s of which is connected to the upper end of the barrel 26 by a strip of material 28, and by stiffening ribs 34.
La semelle 32 comporte un corps cylindrique 46 qui traverse un orifice 50 de diamètre complémentaire de l'élément de structure de caisse 30 lorsque le palier de sortie 22 est en position montée, la semelle 32 comporte aussi une plaque inférieure d'appui 52, de forme annulaire qui s'étend radialement vers l'extérieur depuis l'extrémité inférieure 46i du corps cylindrique 46.The sole 32 comprises a cylindrical body 46 which passes through an orifice 50 of complementary diameter to the body structure element 30 when the outlet bearing 22 is in the mounted position, the sole 32 also comprises a lower support plate 52, of annular shape which extends radially outwards from the lower end 46i of the cylindrical body 46.
La semelle 32 est fixée avec l'élément de structure de caisse 30 par l'intermédiaire de la face cylindrique externe 46e du corps cylindrique 46 qui est filetée et qui est apte à coopérer avec un écrou 54 comportant une surface annulaire inférieure d'appui 54i sur la face horizontale supérieure 30s de l'élément de structure de caisse 30 pour la semelle 32, et par l'intermédiaire de la face supérieure plane 52s de la plaque inférieure d'appui 52 qui s'appuie contre une face inférieure en vis-à-vis 30i de l'élément de structure de caisse 30. Ainsi, l'élément de structure de caisse 30 est serré entre l'écrou 54 et la plaque inférieure d'appui 52.The sole 32 is fixed with the body structure element 30 via the external cylindrical face 46e of the cylindrical body 46 which is threaded and which is able to cooperate with a nut 54 having a lower annular bearing surface 54i on the upper horizontal face 30s of the body structure element 30 for the sole 32, and by means of the planar upper face 52s of the lower support plate 52 which bears against a lower face facing opposite 30i of the body structure element 30. Thus, the body structure element 30 is tightened between the nut 54 and the lower support plate 52.
Pour permettre un effacement du palier de sortie 22 et de l'arbre entraînement 24 lorsque le mécanisme d'essuyage 20 est soumis à un impact, et conformément à l'invention, l'écrou 54 est apte à se séparer en deux parties.To allow the output bearing 22 and the drive shaft 24 to be erased when the wiping mechanism 20 is subjected to an impact, and in accordance with the invention, the nut 54 is able to separate into two parts.
Dans ce but, l'écrou 54 comporte deux tronçons cylindriques coaxiaux 56, 58, qui sont reliés entre eux par une bande de matière 60 qui est apte à se rompre lors de l'impact pour désolidariser les deux tronçons cylindriques 56, 58.For this purpose, the nut 54 comprises two coaxial cylindrical sections 56, 58, which are connected together by a strip of material 60 which is capable of breaking on impact in order to separate the two cylindrical sections 56, 58.
Le premier tronçon cylindrique 56, radialement intérieur, comporte un taraudage qui coopère avec le filetage de la face cylindrique externe 46e du corps cylindrique 46 de la semelle 32. Le diamètre extérieur du premier tronçon cylindrique 56 est inférieur au diamètre de l'orifice 50 de l'élément de structure de caisse 30 de manière qu'il soit apte à traverser l'orifice 50 après s'être désolidarisé du deuxième tronçon cylindrique intérieur 58.The first cylindrical section 56, radially inside, has a thread which cooperates with the threading of the external cylindrical face 46e of the cylindrical body 46 of the sole 32. The outside diameter of the first cylindrical section 56 is less than the diameter of the orifice 50 of the body structure element 30 so that it is able to pass through the orifice 50 after being detached from the second inner cylindrical section 58.
Le deuxième tronçon cylindrique 58, radialement extérieur, est de diamètre intérieur supérieur au diamètre de l'orifice 50 de l'élément de structure de caisse 30, de manière que sa face annulaire inférieure forme la face inférieure d'appui 54i de l'écrou 54 sur la face supérieure 30s de l'élément de structure de caisse 30, autour de l'orifice 50.The second cylindrical section 58, radially outer, has an inner diameter greater than the diameter of the orifice 50 of the body structure element 30, so that its lower annular face forms the lower bearing face 54i of the nut 54 on the upper face 30s of the body structure element 30, around the orifice 50.
Ainsi, après l'impact, et comme on l'a représenté à la figure 4, la bande de matière 60 est rompue, un premier tronçon cylindrique 56 reste solidaire de la semelle 32 et le deuxième tronçon cylindrique est désolidarisé de l'élément de structure de caisse 30 et reste en appui contre l'élément de structure de caisse 30. Selon un mode de réalisation préféré de l'invention, la bande de matière 60 consiste en une bande annulaire qui relie la paroi cylindrique externe du premier tronçon 56 à la paroi cylindrique interne du deuxième tronçon 58. Cependant, il sera compris que les deux tronçons cylindriques 56, 58 peuvent être relié différemment, comme par exemple par plusieurs bandes de matière radiales réparties angulairement par rapport à l'axe A.Thus, after impact, and as shown in FIG. 4, the strip of material 60 is broken, a first cylindrical section 56 remains integral with the sole 32 and the second cylindrical section is detached from the element of body structure 30 and remains in abutment against the body structure element 30. According to a preferred embodiment of the invention, the strip of material 60 consists of an annular strip which connects the external cylindrical wall of the first section 56 to the internal cylindrical wall of the second section 58. However, it will be understood that the two cylindrical sections 56, 58 can be connected differently, for example by several strips of radial material distributed angularly with respect to the axis A.
L'assemblage de l'écrou 54 sur le corps cylindrique 46 de la semelle 32 s'effectue par vissage, et pour que l'assemblage, de la semelle 32 sur l'élément de structure de caisse 30 soit suffisamment rigide, il faut appliquer un certain couple de serrage de l'écrou 54.The assembly of the nut 54 on the cylindrical body 46 of the sole 32 is carried out by screwing, and so that the assembly of the sole 32 on the body structure element 30 is sufficiently rigid, it is necessary to apply a certain torque for tightening the nut 54.
Cependant, lors du serrage de l'écrou 54, un couple résistant d û aux efforts de frottement entre la face inférieure d'appui, 54i de l'écrou 54 et la face supérieure 30s de l'élément de structure de caisse 30, est généré et s'oppose à l'effort de serrage. Ce couple résistant peut provoquer un mouvement relatif des deux tronçons cylindriques 56, 58 et, selon le couple de serrage de l'écrou 54, peut provoquer la rupture de la bande de matière 60.However, when the nut 54 is tightened, a torque resistant to friction forces between the lower bearing face, 54i of the nut 54 and the upper face 30s of the body structure element 30, is generated and opposes the clamping force. This resistant torque can cause relative movement of the two cylindrical sections 56, 58 and, depending on the tightening torque of the nut 54, can cause the strip of material 60 to break.
Pour éviter la rupture de la bande de matière 60 lors du serrage de l'écrou 54, les parois cylindriques externes respectives des deux tronçons cylindriques 56, 58 sont aptes à coopérer chacune avec une portion cylindrique complémentaire d'un même élément de manœuvre pour qu'ils pivotent identiquement autour de l'axe vertical, et donc que la bande de matière 60 ne soit pas sollicitée lors du serrage de l'écrou 54.To avoid breaking the strip of material 60 when tightening the nut 54, the respective external cylindrical walls of the two cylindrical sections 56, 58 are each capable of cooperating with a complementary cylindrical portion of the same operating element so that 'They pivot identically around the vertical axis, and therefore that the strip of material 60 is not stressed when the nut 54 is tightened.
Ici, les parois cylindriques externes respectives des deux tronçons cylindriques 56, 58- sont hexagonales, à la manière des écrous hexagonaux conventionnels, cependant, il sera compris que les parois cylindriques externes de deux tronçons cylindriques 56, 58 peuvent avoir chacune une autre forme, sans sortir du domaine de l'invention.Here, the respective external cylindrical walls of the two cylindrical sections 56, 58- are hexagonal, in the manner of conventional hexagonal nuts, however, it will be understood that the external cylindrical walls of two cylindrical sections 56, 58 may each have a different shape, without departing from the scope of the invention.
Selon une variante de réalisation de l'invention, le tronçon cylindrique intérieur 56 fait saillie vers le haut par rapport à l'extrémité supérieure du tronçon cylindrique extérieure 58, il est alors possible d'accéder radialement aux deux parois cylindriques externes des deux tronçons cylindriques 56, 58, l'outil de manœuvre de l'écrou 54 peut alors avoir la forme d'une clé à fourche.According to an alternative embodiment of the invention, the inner cylindrical section 56 projects upwards relative to the upper end of the outer cylindrical section 58, it is then possible to access radially the two external cylindrical walls of the two cylindrical sections 56, 58, the operation of the nut 54 can then have the shape of an open-end wrench.
Différents modes de serrage de l'écrou 54 peuvent être utilisés. Selon un premier mode de réalisation, la clé de manœuvre de l'écrou 54 consiste en une clé dynamométrique permettant à l'opérateur d'appliquer un couple de serrage de l'écrou 54 relativement précis.Different methods of tightening the nut 54 can be used. According to a first embodiment, the key for operating the nut 54 consists of a torque wrench allowing the operator to apply a tightening torque of the nut 54 relatively precise.
Selon un autre mode de réalisation représenté aux figures 3 et 4, le tronçon cylindrique intérieur 56 comporte un anneau horizontal 62 qui s'étend radialement vers l'intérieur depuis son extrémité supérieure 56s, et dont la face inférieure 62i de l'anneau horizontal 62 est prolongée vers le bas par des butées 64 qui viennent en butée contre la face annulaire supérieure 46s du corps cylindrique 46 lorsque l'écrou 54 est dans une position pour laquelle la semelle 32 est considérée comme , étant fixée à l'élément de structure de caisse 30.According to another embodiment shown in Figures 3 and 4, the inner cylindrical section 56 has a horizontal ring 62 which extends radially inward from its upper end 56s, and whose lower face 62i of the horizontal ring 62 is extended downward by stops 64 which abut against the upper annular face 46s of the cylindrical body 46 when the nut 54 is in a position for which the flange 32 is considered to be fixed to the structural element of box 30.
Il est connu que le mécanisme d'entraînement 20 produit des vibrations qui, lorsqu'elles sont transmises à l'élément de structure de caisse 30, sont la source de bruit relativement désagréable.It is known that the drive mechanism 20 produces vibrations which, when transmitted to the body structure element 30, are the source of relatively unpleasant noise.
Pour empêcher que les vibrations ne se propagent vers l'élément de structure de caisse 30, il est prévu d'interposer des moyens d'amortissement des vibrations entre l'élément de structure de caisse 30 et la semelle 32. Conformément à l'invention , les moyens d'amortissement comportent un premier élément formant amortisseur 66 qui est interposé axialement entre la semelle 32 et l'élément de structure de caisse 30, et un deuxième élément formant amortisseur 68 qui est interposé axialement entre l'élément de structure de caisse 30 et l'écrou 54.To prevent vibrations from propagating towards the body structure element 30, provision is made to interpose vibration damping means between the body structure element 30 and the sole 32. According to the invention , the damping means comprise a first damper element 66 which is interposed axially between the sole 32 and the body structure element 30, and a second damper element 68 which is interposed axially between the body structure element 30 and nut 54.
Les deux éléments formant amortisseur 66, 68 sont des éléments déformables elastiquement de manière que le serrage de l'écrou 54 provoque un écrasement des éléments formant amortisseur 66, 68. Ils sont par exemple en un matériau élastomère ou en caoutchouc, et ils sont de forme globalement annulaire.The two shock-absorbing elements 66, 68 are elastically deformable elements so that the tightening of the nut 54 causes the shock-absorbing elements 66, 68 to be crushed. They are for example made of a material elastomer or rubber, and they are generally annular in shape.
Le diamètre intérieur du premier élément formant amortisseur 66 est sensiblement égal au diamètre extérieur du corps cylindrique 46 de la semelle 32 de manière à réaliser son positionnement axial par rapport à la semelle 32.The internal diameter of the first damper element 66 is substantially equal to the external diameter of the cylindrical body 46 of the sole 32 so as to achieve its axial positioning relative to the sole 32.
Le deuxième élément formant amortisseur 68 comporte un corps 70 de section globalement rectangulaire et une lèvre annulaire 72qui s'étend verticalement vers le haut depuis le bord interne du corps 70, de diamètre extérieur sensiblement égale au diamètre intérieur du tronçon cylind rique extérieur 58, de manière à réaliser son positionnement axial par rapport à l'écrou 54.The second damper element 68 comprises a body 70 of generally rectangular section and an annular lip 72 which extends vertically upwards from the internal edge of the body 70, of external diameter substantially equal to the internal diameter of the external cylindrical section 58, of so as to achieve its axial positioning relative to the nut 54.
De plus, l'élément de structure de caisse 30 comporte un tronçon annulaire 74, qui s'étend verticalement vers le haut et qui délimite l'orifice 50 qui est traversé par la .semelle 32.In addition, the body structure element 30 comprises an annular section 74 which extends vertically upwards and which delimits the orifice 50 which is crossed by the sole 32.
La face cylindrique externe 70e forme d'une surface de centrage axial de l'écrou 54, et donc de la semelle 32, par l'intermédiaire du deuxième élément formant amortisseur 68, permettant de positionner axialement la semelle 32 par rapport à l'élément de structure de caisse 30.The external cylindrical face 70e forms an axial centering surface of the nut 54, and therefore of the sole 32, by means of the second damper element 68, making it possible to axially position the sole 32 relative to the element body structure 30.
La partie supérieure du mécanisme d'entraînement 20, c'est-à-dire l'écrou 54 et l'extrémité supérieure 36 de l'arbre 24, est en général agencé à l'extérieur du véhicule automobile et les exposés aux diverses agressions extérieures que sont les poussières et les intempéries.The upper part of the drive mechanism 20, that is to say the nut 54 and the upper end 36 of the shaft 24, is generally arranged outside the motor vehicle and exposed to various attacks dust and bad weather.
Pour éviter que des éléments étrangers ne pénètrent dans le mécanisme d'entraînement 20, le bord intérieur de l'anneau horizontal 62 de l'écrou 54 est prolongé radialement vers l'intérieur par un joint d'étanchéité 72 qui permet d'empêcher toute intrusion d'éléments étrangers le long de l'arbre 24. De plus, les éléments formant amortisseur 66, 68 réalisent, en plus de leur fonction d'amortissement, une fonction d'étanchéité entre l'élément de structure de caisse 30 et l'écrou 54 la semelle 32, de manière qu'il soit impossible à tout élément étranger de pénétrer dans le mécanisme d'entraînement 20.To prevent foreign elements from entering the drive mechanism 20, the inner edge of the horizontal ring 62 of the nut 54 is extended radially inward by a seal 72 which makes it possible to prevent any intrusion of foreign elements along the shaft 24. In addition, the damper elements 66, 68 perform, in addition to their damping function, a sealing function between the body structure element 30 and the '' nut 54 the sole 32, of such that it is impossible for any foreign element to enter the drive mechanism 20.
Selon un mode de réalisation préféré de l'invention, l'écrou 54 est réalisé par moulage de matière plastique, cependant, il sera compris que l'écrou peut être réalisé en un matériau métallique, sans sortir du domaine de l'invention.According to a preferred embodiment of the invention, the nut 54 is made by molding plastic material, however, it will be understood that the nut can be made of a metallic material, without departing from the scope of the invention.
On a décrit un mécanisme d'essuyage 20 dans lequel la semelle 32 est coaxiale au fût de guidage de l'arbre 24. Cependant il sera compris que l'invention s'applique également à un mécanisme d'essuyage 20 pour lequel l'axe vertical de la semelle est décalé horizontalement par rapport à l'axe A du fût 26 de guidage de l'arbre 24. A wiping mechanism 20 has been described in which the sole 32 is coaxial with the shaft guide shaft 24. However, it will be understood that the invention also applies to a wiping mechanism 20 for which the axis the vertical of the sole is horizontally offset with respect to the axis A of the shaft 26 for guiding the shaft 24.

Claims

REVENDICATIONS
1. Agencement pour la fixation d'un mécanisme d'essuyage (20) pour véhicule automobile, du type comportant au moins un palier de sortie (22) de guidage en rotation et de fixation d'un arbre (24) d'entraînement qui s'étend axialement suivant une direction sensiblement verticale, du type dans lequel le palier de sortie (22) comporte un fût (26) dans lequel l'arbre (24) est guidé en rotation, et une semelle (32) pour la fixation du palier de sortie (22) avec un élément de structure de caisse (30) du véhicule, du type dans lequel la semelle (32) comporte une face supérieure (52s) d'appui contre une face inférieure (30i) de l'élément de structure de caisse (30) et une portion filetée (46) d'axe vertical A qui s'étend verticalement vers le haut depuis la face supérieure d'appui (52s), en traversant un orifice coaxial (50) de l'élément de structure de caisse (30) et qui est apte à coopérer avec un écrou (54) comportant une surface annulaire inférieure (54i) de serrage pour fixer la semelle (32) avec l'élément de structure de caisse (30), caractérisé en ce que l'écrou (54) est apte à se séparer en au moins deux parties (56, 58) lorsque le mécanisme d'essuyage (20) est soumis à un impact violent dont la composante verticale est orientée vers le bas et est supérieure à une valeur déterminée, permettant une désolidarisation de la semelle (32) d'avec l'élément de structure de caisse (30).1. Arrangement for fixing a wiping mechanism (20) for a motor vehicle, of the type comprising at least one output bearing (22) for guiding in rotation and for fixing a drive shaft (24) which extends axially in a substantially vertical direction, of the type in which the outlet bearing (22) comprises a barrel (26) in which the shaft (24) is guided in rotation, and a flange (32) for fixing the output bearing (22) with a body structure element (30) of the vehicle, of the type in which the sole (32) has an upper face (52s) bearing against a lower face (30i) of the element body structure (30) and a threaded portion (46) of vertical axis A which extends vertically upwards from the upper bearing face (52s), passing through a coaxial orifice (50) of the element body structure (30) and which is able to cooperate with a nut (54) having a lower annular surface (54i) for clamping in. ur fix the sole (32) with the body structure element (30), characterized in that the nut (54) is capable of separating into at least two parts (56, 58) when the wiping mechanism (20) is subjected to a violent impact whose vertical component is oriented downwards and is greater than a determined value, allowing a separation of the sole (32) from the body structure element (30).
2. Agencement selon la revendication précédente, caractérisé en ce que l'écrou (54) comporte deux tronçons cylindriques coaxiaux (56, 58), un premier tronçon radialement intérieur (56) comportant un taraudage qui coopère avec le filetage de la portion filetée (46) de la semelle (32), et un deuxième tronçon radialement extérieur (58), dont la surface annulaire d'extrémité inférieure forme la surface d'appui (54i) et de serrage contre une face supérieure (30s) en vis-à-vis de l'élément de structure de caisse (30), qui est relié au premier tronçon (56) par au moins une bande de matière (60) qui est apte à rompre lors de l'impact pour désolidariser les deux tronçons cylindriques (56, 58).2. Arrangement according to the preceding claim, characterized in that the nut (54) comprises two coaxial cylindrical sections (56, 58), a first radially inner section (56) comprising a thread which cooperates with the threading of the threaded portion ( 46) of the sole (32), and a second radially outer section (58), the annular surface of the lower end of which forms the bearing (54i) and clamping surface against an upper face (30s) opposite - screw of the body structure element (30), which is connected to the first section (56) by at least one strip of material (60) which is capable of breaking on impact in order to separate the two cylindrical sections (56, 58).
3. Agencement selon l'une la revendication précédente, caractérisé en ce que les dimensions du premier tronçon (56) sont déterminées de manière qu'il soit apte à traverser l'orifice (50) de l'élément de structure de caisse (30), après sa désolidarisation d'avec le deuxième tronçon (58) .3. Arrangement according to one of the preceding claim, characterized in that the dimensions of the first section (56) are determined so that it is capable of passing through the orifice (50) of the body structure element (30 ), after its separation from the second section (58).
4. Agencement selon l'une quelconque des revendications 2 ou 3, caractérisé en ce que la bande de matière (60) relie la paroi cylindrique externe du premier tronçon (56) à la paroi cylindrique interne du deuxième tronçon (58).4. Arrangement according to any one of claims 2 or 3, characterized in that the strip of material (60) connects the external cylindrical wall of the first section (56) to the internal cylindrical wall of the second section (58).
5. Agencement selon la revendication précédente, caractérisé en ce que la bande de matière (60) consiste en une bande annulaire horizontale coaxiale aux tronçons cylindriques (56, 58).5. Arrangement according to the preceding claim, characterized in that the strip of material (60) consists of a horizontal annular strip coaxial with the cylindrical sections (56, 58).
6. Agencement selon l'une quelconque des revendications 2 à 5, caractérisé en ce que les parois cylind riques externes des deux tronçons (56, 58) de l'écrou (54) sont aptes à coopérer chacune avec une portion cylindrique complémentaire d'un élément de manœuvre de l'écrou unique.6. Arrangement according to any one of claims 2 to 5, characterized in that the external cylindrical walls of the two sections (56, 58) of the nut (54) are capable of cooperating each with a complementary cylindrical portion of a single nut operating element.
7. Agencement selon l'une quelconque des revendications 2 à 6, caractérisé en ce que le premier tronçon (56) fait saillie vers le haut par rapport à l'extrémité supérieure du deuxième tronçon (58).7. Arrangement according to any one of claims 2 to 6, characterized in that the first section (56) projects upwards relative to the upper end of the second section (58).
8. Agencement selon l'une quelconque des revendications 2 à 7, caractérisé en ce que le premier tronçon (56) comporte un anneau (62) qui s'étend radialement vers l'intérieur depuis l'extrémité supérieure (56s) du premier tronçon (56), dont la face inférieure (64) vient en butée contre une face annulaire supérieure (46s) de la portion filetée (46) de la semelle (32) lorsque l'écrou (54) est en position montée avec la portion filetée (46) de la semelle (32).8. Arrangement according to any one of claims 2 to 7, characterized in that the first section (56) comprises a ring (62) which extends radially inwards from the upper end (56s) of the first section (56), the lower face (64) of which abuts against an upper annular face (46s) of the threaded portion (46) of the sole (32) when the nut ( 54) is in the mounted position with the threaded portion (46) of the sole (32).
9. Agencement selon l'une quelconque des revendications 2 à 8, caractérisé en ce qu'il comporte au moins un élément déformable elastiquement (66, 68) interposé axialement entre la semelle (32) et l'élément de structure de caisse (30) et/ou l'élément de structure de caisse (30) et l'écrou (54) respectivement.9. Arrangement according to any one of claims 2 to 8, characterized in that it comprises at least one elastically deformable element (66, 68) interposed axially between the sole (32) and the body structure element (30 ) and / or the body structure element (30) and the nut (54) respectively.
10. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion filetée (46) de la semelle (32) et l'écrou (54) sont coaxiaux au fût (26) de guidage. 10. Arrangement according to any one of the preceding claims, characterized in that the threaded portion (46) of the sole (32) and the nut (54) are coaxial with the barrel (26) for guiding.
PCT/EP2003/010256 2002-09-30 2003-09-16 Fixing arrangement for a windscreen wiper comprising a retracting driving shaft provided with a divisible nut WO2004028874A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2003270198A AU2003270198A1 (en) 2002-09-30 2003-09-16 Fixing arrangement for a windscreen wiper comprising a retracting driving shaft provided with a divisible nut
EP03750548A EP1545946A1 (en) 2002-09-30 2003-09-16 Fixing arrangement for a windscreen wiper comprising a retracting driving shaft provided with a divisible nut
JP2004538906A JP4373918B2 (en) 2002-09-30 2003-09-16 Fixing device for wiper mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0212207A FR2845055B1 (en) 2002-09-30 2002-09-30 ARRANGEMENT FOR FIXING A WIPING MECHANISM COMPRISING A SCREWABLE NUT ALLOWING THE ERASURE OF THE DRIVE SHAFT
FR0212207 2002-09-30

Publications (1)

Publication Number Publication Date
WO2004028874A1 true WO2004028874A1 (en) 2004-04-08

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EP (1) EP1545946A1 (en)
JP (1) JP4373918B2 (en)
CN (1) CN100493966C (en)
AU (1) AU2003270198A1 (en)
FR (1) FR2845055B1 (en)
WO (1) WO2004028874A1 (en)

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FR2956632A1 (en) * 2010-02-19 2011-08-26 Peugeot Citroen Automobiles Sa Wiping assembly for windscreen of motor vehicle, has guiding unit equipped with maintaining unit that is configured to fix assembly at interface part of motor vehicle, and wiping brush rotatably moved to wipe liquid on windscreen
US9254820B2 (en) * 2010-12-01 2016-02-09 Robert Bosch Gmbh Wiper drive
US9637613B2 (en) 2007-12-31 2017-05-02 Bridgestone Corporation Metal soaps incorporated in rubber compositions and method for incorporating such soaps in rubber compositions

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DE102011090155A1 (en) * 2011-12-30 2013-07-04 Robert Bosch Gmbh Carrier element for a wiper drive
DE102012211072A1 (en) * 2012-06-27 2014-01-02 Robert Bosch Gmbh Windscreen wiper device for cleaning e.g. windscreen of car, has decoupling system comprising attaching part for receiving fixing pin, which is held in axial direction by snap connection in attaching part
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FR2845055B1 (en) 2004-12-10
EP1545946A1 (en) 2005-06-29
JP2006501096A (en) 2006-01-12
AU2003270198A1 (en) 2004-04-19
FR2845055A1 (en) 2004-04-02
CN1684862A (en) 2005-10-19
CN100493966C (en) 2009-06-03
JP4373918B2 (en) 2009-11-25

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