EP1567395A1 - Window-wiping device, particularly for a motor vehicle - Google Patents

Window-wiping device, particularly for a motor vehicle

Info

Publication number
EP1567395A1
EP1567395A1 EP03740045A EP03740045A EP1567395A1 EP 1567395 A1 EP1567395 A1 EP 1567395A1 EP 03740045 A EP03740045 A EP 03740045A EP 03740045 A EP03740045 A EP 03740045A EP 1567395 A1 EP1567395 A1 EP 1567395A1
Authority
EP
European Patent Office
Prior art keywords
wiper
shaft
bearing housing
wiper device
wiper shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03740045A
Other languages
German (de)
French (fr)
Inventor
Joachim Zimmer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1567395A1 publication Critical patent/EP1567395A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S403/00—Joints and connections
    • Y10S403/03—Load-responsive release

Definitions

  • Windscreen wiper device in particular for a motor vehicle
  • the invention relates to a windshield wiper device for a motor vehicle according to the preamble of the independent claim.
  • a wiper bearing which comprises at least one bearing housing in which a wiper shaft is mounted, which is axially fixed by means of an element and carries a wiper arm at a first end.
  • the axial fixation is designed such that the element is deformed when energy is exerted on the wiper arm or on the first end of the wiper shaft. If a pedestrian hits the wiper arms or wiper shaft in the event of an accident, these can retreat, which means that the pedestrian is less injured.
  • the fact that the element absorbs energy also prevents the pedestrian from colliding with all of the energy on the vehicle body due to the retraction of the wiper arms.
  • the elements are designed as a row of thin-walled, plate-shaped sheet metal sleeves, which can also have a corrugated area.
  • such elements are complex and expensive to manufacture and cannot be repaired after an impact.
  • the windshield wiper device according to the invention with the features of the main claim has the advantage that a very inexpensive, effective and easy to dimension option of a plug-in design of the element Pedestrian impact protection for windshield wiper devices is given, moreover, because the windshield wiper device can be plugged in, particularly simple manufacture and repair is achieved, as a result of which further costs can be saved during assembly.
  • the element is arranged such that when a force is exerted in the axial direction on the first end of the wiper shaft, it is deformable, in particular compressible. In this way, the energy is particularly well absorbed on impact.
  • the element is arranged between the bearing housing and an extension on the wiper shaft.
  • the extension is disc-shaped and includes the wiper shaft, so that the energy can be emitted from the wiper shaft over a very large area of the element.
  • the attachment is formed in one piece with the wiper shaft.
  • the element is designed as an S-start / bending rope or from wound wire.
  • the element is designed to be corrosion-protected, so the life of the windshield wiper device is significantly increased. It is also particularly advantageous if the bearing housing has securing means which protect the element against twisting.
  • Figure 1 shows a windshield wiper device according to the invention in perspective
  • Figure 2 shows a schematic section through an inventive wiper bearing in front of a
  • Figure 3 is a perspective view of a wiper bearing of an inventive
  • Windshield wiper and an element before attaching it to the wiper bearing Windshield wiper and an element before attaching it to the wiper bearing
  • Figure 4 is a perspective view of a wiper bearing of an inventive
  • Windshield wiper device with mounted element Windshield wiper device with mounted element
  • FIGS. 5a, 5b an element of a windshield wiper device according to the invention in a schematic representation
  • FIGS. 6a, 6b an element of a windshield wiper device according to the invention in a
  • a windshield wiper device 10 according to the invention is shown in a perspective view.
  • This essentially comprises a carrier tube 12, which carries a wiper bearing 14 at the ends of its longitudinal extent.
  • a motor mount 16 is attached to the support tube 12, which carries a wiper motor 18.
  • This wiper motor 18 drives 20 wiper shafts 22 via push rods which are mounted in the bearing housings 24 of the wiper bearings 14.
  • a wiper bearing of a windshield wiper device 10 according to the invention is shown in detail in a schematic cross section in FIG.
  • the wiper shaft 22 is mounted in the bearing housing 24 of the wiper bearing 14. It has a first end 26 at which it has a wiper arm 28, which is only partially drawn here is rotatably connected. At the other end 30 of its longitudinal extent, the wiper shaft 22 is connected in a rotationally fixed manner to a drive crank 32, which in turn is articulated to the push rod 20 (FIG. 1).
  • the wiper shaft 22 also has a shoulder 34 which is designed as a disk and is axially fixed on the wiper shaft 22.
  • the extension 34 can be formed in one piece with the wiper shaft 22 or, for example, can also be designed as an attached disc which is axially fixed at least in the direction of the wiper arm 28 by means of a snap ring 35. In a variation, it is also conceivable that the extension 34 consists of an at least partially circular ring-shaped recess into which a snap ring is inserted.
  • the wiper shaft 22 protrudes from the end face 36 of the bearing housing 24 and has a thread at its first end 26, which is screwed on the fastening element 38 designed as a screw nut for fastening the wiper arm 28.
  • an additional fastening stub 40 is arranged between the fastening element 38 and the wiper arm 28.
  • An element 42 is arranged between the end face 36 of the bearing housing 24 and the extension 34 of the wiper shaft 22. This element 42 can be attached radially laterally to the wiper shaft 22 and is made of stamped and bent sheet metal.
  • FIG. 3 shows a wiper bearing 14 on a carrier tube 12 of a windshield wiper device 10 according to the invention in a perspective illustration.
  • the wiper bearing 14 carries with its bearing housing 24 the wiper shaft 22 which can be connected at its first end 26 to a wiper arm (not shown). At its other end 30, the wiper shaft is connected in a rotationally fixed manner to the drive crank 32, so that it can itself be set in motion by the movement of the wiper motor 18.
  • the wiper bearing 14 has a collar 43 which extends in a ring around the wiper shaft 22 and serves to receive the element 42.
  • the collar 43 has two ribs 45 as securing means, which are arranged in such a way that the radial play of the element 42, which here is shown explosively next to the wiper bearing 14 , inhibit or limit.
  • the wiper shaft 22 has the shoulder 34, which is supported on the element 42 in the mounted position.
  • the collar 43 is chosen so high that it corresponds to the height of a compressed element 42. This results in on the one hand an optimal mounting of the wiper shaft 22 and on the other hand a maximum utilization of the damping path of the element 42.
  • the collar 43 can also have another suitable height, it should only be less than the height of the element 42.
  • the drive crank can 32 also form the extension 34 itself, in which the drive crank 32 is arranged in the region of the first end 26 of the wiper shaft.
  • the element can also be formed in one piece with the collar 43, or with the wiper bearing 14 or with the drive crank 32.
  • FIG. 4 shows the carrier tube 12 with a wiper bearing 14 of a windshield wiper device 10 according to the invention, together with the element 42, completely assembled.
  • the element 42 has been slipped onto the collar 43 of the wiper bearing 14 and fixed radially by the ribs 45.
  • the element 42 thus grips around the collar 43 like a clamp.
  • the element 42 is axially fixed, on the one hand by the shoulder 34 of the wiper shaft 22, and on the other hand by the support 47 on the bearing housing 24 of the wiper bearing 14 itself.
  • the support 47 is typically formed by fastening elements of the wiper bearing 14 , or is integrally formed with this.
  • Figures 5 a, 5b and 6a, 6b show different configurations of an element 42 of a windshield wiper device 10 according to the invention.
  • the element 42 in these figures is not yet bent like a clamp, but is still shown in a flat, flat shape, as is typically found within the Manufacturing process can exist.
  • Figure 5a shows a simple element 42 which is bent from a stable wire. By alternately bending back and forth at certain intervals of the wire, a meandering structure with a spring-like character results with the height h1 of the element 42.
  • FIG. 5b shows the element from FIG. 5a in a compressed position. The individual areas now nestle directly against one another, so that the element has a height h2, which is typically less than the height hl.
  • FIG. 6a shows a variation of the element 42 from FIG. 5.
  • the element 42 shown here is punched out of sheet metal and / or perforated, so that closed hollow areas 51 are formed.
  • FIG. 6b the element 42 from FIG. 6a is shown compressed.
  • the elements 42 shown in FIGS. 5a, 5b and 6a, 6b are bent in a cylinder-like manner around an axis lying in their direction of deformation, such that a slot or an opening still remains, with which the element 42 can be plugged onto the collar 43 of the bearing housing 24.
  • the elements 42 are not completely rotationally symmetrical. After being placed on the collar 43, the element 42 latches on the wiper bearing due to its inherent tension, similar to a snap ring. After deformation, the element 42 can also be very easily removed from the wiper bearing 14 in this way and replaced by a new element without the windshield wiper device 10 having to be dismantled. Optimal energy absorption of the element 42 is achieved by making full use of the space between the contact surface 47 and the extension 34.
  • the elements 42 shown in FIGS. 6a, 6b can be produced very easily by punching from a sheet metal strip, which can also be bent thereafter. In this way, a defined stiffness can also be set in a simple manner.
  • the element 42 must of course not only be cylindrical, but also be elliptically or otherwise suitably curved. Such elements 42 can be manufactured most easily on step presses or in progressive dies.
  • the element 42 is preferably made of steel materials with a corrosion protection, for example a hot-dip galvanizing, but can also be made of zinc or aluminum sheet, plastic or ceramic. If the element 42 is wound from a wire, the final geometry, that is to say the cylinder geometry, can also be produced immediately in one production step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Window Of Vehicle (AREA)
  • Motor Or Generator Frames (AREA)
  • Cleaning In General (AREA)
  • Power Steering Mechanism (AREA)

Abstract

Disclosed is a window-wiping device (10), particularly for a motor vehicle, comprising at least one wiper bearing (14) that is provided with a bearing housing (24), and a wiper shaft (22) which is mounted within the bearing housing (24) and supports a wiper arm (28) at a first end (26) thereof. An element (42) which fixes the wiper shaft (22) in an axial direction can be radially snapped onto the wiper shaft.

Description

Scheibenwischvorrichtung, insbesondere für ein KraftfahrzeugWindscreen wiper device, in particular for a motor vehicle
Stand der TechnikState of the art
Die Erfindung betrifft eine Scheibenwischvorrichtung für ein Kraftfahrzeug nach Gattung des unabhängigen Anspruchs.The invention relates to a windshield wiper device for a motor vehicle according to the preamble of the independent claim.
Es sind schon zahlreiche Scheibenwischvorrichtungen, beispielsweise aus der DE 199 03 140 AI bekannt, die ein Wischerlager aufweisen, welches zumindest ein Lagergehäuse umfasst, in dem eine Wischerwelle gelagert ist, die mittels eines Elements axial fixiert ist und an einem ersten Ende einen Wischerarm trägt. Die axiale Fixierung ist hierbei derart ausgebildet, dass das Element bei einer Krafteinwirkung auf den Wischerarm bzw. auf das erste Ende der Wischerwelle unter Energieaufnahme verformt wird. Prallt nun bei einem Unfall ein Fußgänger auf die Wischerarme oder Wischerwelle auf, so können diese zurückweichen, wodurch der Fußgänger sich weniger verletzen kann. Dadurch, dass das Element Energie aufnimmt, wird außerdem vermieden, dass der Fußgänger durch das Zurückweichen der Wischerarme mit der gesamte Energie auf die Fahrzeugkarosserie aufprallt. Dazu sind die Elemente als in Reihe angeordnete, dünnwandige, tellerförmige Blechhülsen ausgebildet, die auch einen gewellten Bereich aufweisen können. Derartige Elemente sind jedoch aufwändig und kostenintensiv herzustellen und nach einem Aufprall nicht zu reparieren.Numerous windshield wiper devices are known, for example from DE 199 03 140 AI, which have a wiper bearing which comprises at least one bearing housing in which a wiper shaft is mounted, which is axially fixed by means of an element and carries a wiper arm at a first end. The axial fixation is designed such that the element is deformed when energy is exerted on the wiper arm or on the first end of the wiper shaft. If a pedestrian hits the wiper arms or wiper shaft in the event of an accident, these can retreat, which means that the pedestrian is less injured. The fact that the element absorbs energy also prevents the pedestrian from colliding with all of the energy on the vehicle body due to the retraction of the wiper arms. For this purpose, the elements are designed as a row of thin-walled, plate-shaped sheet metal sleeves, which can also have a corrugated area. However, such elements are complex and expensive to manufacture and cannot be repaired after an impact.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Scheibenwischvorrichtung mit den Merkmalen des Hauptanspruchs hat den Vorteil, dass durch eine aufsteckbare Ausbildung des Elements eine sehr kostengünstige, wirksame und einfach zu dimensionierende Möglichkeit eines Fußgängeraufprallschutzes für Scheibenwischvorrichtungen gegeben ist, darüber hinaus wird durch die Aufsteckbarkeit eine besonders einfache Fertigung und Reparatur der Scheibenwischvorrichtung erreicht, wodurch weiter Kosten bei der Montage eingespart werden können.The windshield wiper device according to the invention with the features of the main claim has the advantage that a very inexpensive, effective and easy to dimension option of a plug-in design of the element Pedestrian impact protection for windshield wiper devices is given, moreover, because the windshield wiper device can be plugged in, particularly simple manufacture and repair is achieved, as a result of which further costs can be saved during assembly.
Durch die in den Unteransprüchen aufgeführten Maßnahmen ergeben sich vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Merkmale.The measures listed in the subclaims result in advantageous developments and improvements of the features specified in the main claim.
Besonders vorteilhaft ist, wenn das Element derart angeordnet ist, dass bei Einwirkung einer Kraft in axialer Richtung auf das erste Ende der Wischerwelle verformbar, insbesondere komprimierbar ist. Auf diese Weise wird die Energie beim Aufprall besonders gut absorbiert.It is particularly advantageous if the element is arranged such that when a force is exerted in the axial direction on the first end of the wiper shaft, it is deformable, in particular compressible. In this way, the energy is particularly well absorbed on impact.
In einer besonders einfachen und kostengünstigen Ausführung ist das Element zwischen dem Lagergehäuse und einem Ansatz an der Wischerwelle angeordnet.In a particularly simple and inexpensive embodiment, the element is arranged between the bearing housing and an extension on the wiper shaft.
Besonders vorteilhaft ist hierbei, wenn der Ansatz scheibenförmig ausgebildet ist und die Wischerwelle umfasst, so dass die Energie von der Wischerwelle auf einen sehr großen Bereich des Elementes abgegeben werden kann.It is particularly advantageous here if the extension is disc-shaped and includes the wiper shaft, so that the energy can be emitted from the wiper shaft over a very large area of the element.
In einer einfachen Ausführungsvariante ist der Ansatz einstückig mit der Wischerwelle ausgebildet.In a simple embodiment variant, the attachment is formed in one piece with the wiper shaft.
Besonders kostengünstig ist es, wenn das Element als S-anz-/Biege-eil oder aus gewickeltem Draht ausgebildet ist.It is particularly cost-effective if the element is designed as an S-start / bending rope or from wound wire.
Besonders wenig Bauraum wird dann beansprucht, wenn das Element sich im wesentlichen um die Wischerwelle schmiegt.Particularly little installation space is required when the element essentially nestles around the wiper shaft.
Weiter ist es als vorteilhaft anzusehen, wenn das Element am Lagergehäuse insbesondere durch Eigenspannung verrastet ist. Damit kann auf weitere Befestigungselemente völlig verzichtet werden.It is also to be regarded as advantageous if the element is locked on the bearing housing in particular by internal stress. This eliminates the need for additional fasteners.
Es ist das Element korrosionsgeschützt ausgebildet, so wird die Lebensdauer der Scheibenwischvorrichtung entscheidend erhöht. Von besonderem Vorteil ist es darüberhinaus, wenn das Lagergehäuse Sicherungsmittel aufweist, die das Element gegen ein Verdrehen schützen.The element is designed to be corrosion-protected, so the life of the windshield wiper device is significantly increased. It is also particularly advantageous if the bearing housing has securing means which protect the element against twisting.
Zeichnungendrawings
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert.An embodiment of the invention is shown in the drawings and explained in more detail in the following description.
Es zeigen:Show it:
Figur 1 eine erfindungsgemäße Scheibenwischvorrichtung in perspektivischerFigure 1 shows a windshield wiper device according to the invention in perspective
Darstellung,Presentation,
Figur 2 einen schematischen Schnitt durch ein erfindungsgemäßes Wischerlager vor einerFigure 2 shows a schematic section through an inventive wiper bearing in front of a
K-rafteinwirkung,K-rafteinwirkung,
Figur 3 eine perspektivische Darstellung eines Wischerlagers einer erfindungsgemäßenFigure 3 is a perspective view of a wiper bearing of an inventive
Scheibenwischvorstellung sowie ein Element vor dessen Befestigung am Wischerlager,Windshield wiper and an element before attaching it to the wiper bearing,
Figur 4 eine perspektivische Darstellung eines Wischerlagers einer erfindungsgemäßenFigure 4 is a perspective view of a wiper bearing of an inventive
Scheibenwischvorrichtung mit montiertem Element,Windshield wiper device with mounted element,
Figuren 5a, 5b ein Element einer erfindungsgemäßen Scheibenwischvorrichtung in schematischer Darstellung undFigures 5a, 5b an element of a windshield wiper device according to the invention in a schematic representation and
Figuren 6a, 6b ein Element einer erfindungsgemäßen Scheibenwischvorrichtung in einerFigures 6a, 6b an element of a windshield wiper device according to the invention in a
Variation aus Figur 5a.Variation from Figure 5a.
Beschreibung des AusführungsbeispielsDescription of the embodiment
In Figur 1 ist eine erfindungsgemäße Scheibenwischvorrichtung 10 in einer perspektivischen Darstellung gezeigt. Diese umfasst im Wesentlichen ein Trägerrohr 12, welches an den Enden seiner Längserstreckung jeweils ein Wischerlager 14 trägt. Weiterhin ist am Trägerrohr 12 ein Motorträger 16 befestigt, der einen Wischermotor 18 trägt. Dieser Wischermotor 18 treibt über Schubstangen 20 Wischerwellen 22 an, die in den Lagergehäusen 24 der Wischerlager 14 gelagert sind.In Figure 1, a windshield wiper device 10 according to the invention is shown in a perspective view. This essentially comprises a carrier tube 12, which carries a wiper bearing 14 at the ends of its longitudinal extent. Furthermore, a motor mount 16 is attached to the support tube 12, which carries a wiper motor 18. This wiper motor 18 drives 20 wiper shafts 22 via push rods which are mounted in the bearing housings 24 of the wiper bearings 14.
In Figur 2 ist ein Wischerlager einer erfmdungsgemäßen Scheibenwischvorrichtung 10 in einem schematischen Querschnitt detailliert dargestellt.A wiper bearing of a windshield wiper device 10 according to the invention is shown in detail in a schematic cross section in FIG.
Die Wischerwelle 22 ist im Lagergehäuse 24 des Wischerlagers 14 gelagert. Sie weist ein erstes Ende 26 auf, an dem sie mit einem, hier nur teilweise gezeiclineten, Wischerarm 28 drehfest verbunden ist. Am anderen Ende 30 seiner Längserstreckung ist die Wischerwelle 22 mit einer Antriebskurbel 32 drehfest verbunden, die wiederum mit der Schubstange 20 (Figur 1) gelenkig verbunden ist. Die Wischerwelle 22 weist weiterhin einen Ansatz 34 auf, der als Scheibe ausgebildet ist und axial auf der Wischerwelle 22 fixiert ist. Der Ansatz 34 kann einstückig mit der Wischerwelle 22 ausgebildet sein oder beispielsweise auch als eine aufgesetzte Scheibe ausgebildet sein, die mittels eines Sprengrings 35 zumindest in Richtung des Wischerarmes 28 axial fixiert ist. In einer Variation ist es auch vorstellbar, dass der Ansatz 34 aus einer zumindest teilweise --reisringförmigen Aussparung besteht, in die ein Sprengring eingesetzt ist.The wiper shaft 22 is mounted in the bearing housing 24 of the wiper bearing 14. It has a first end 26 at which it has a wiper arm 28, which is only partially drawn here is rotatably connected. At the other end 30 of its longitudinal extent, the wiper shaft 22 is connected in a rotationally fixed manner to a drive crank 32, which in turn is articulated to the push rod 20 (FIG. 1). The wiper shaft 22 also has a shoulder 34 which is designed as a disk and is axially fixed on the wiper shaft 22. The extension 34 can be formed in one piece with the wiper shaft 22 or, for example, can also be designed as an attached disc which is axially fixed at least in the direction of the wiper arm 28 by means of a snap ring 35. In a variation, it is also conceivable that the extension 34 consists of an at least partially circular ring-shaped recess into which a snap ring is inserted.
Die Wischerwelle 22 ragt aus der Stirnseite 36 des Lagergehäuses 24 heraus und weist an ihrem ersten Ende 26 ein Gewinde auf, welches das als Schraubenmutter ausgebildete Befestigungselement 38 zur Befestigung des Wischerarms 28 aufgeschraubt ist. Je nach Ausbildung des Wischerarms 28 ist zwischen dem Befestigungselement 38 und dem Wischerarm 28 noch ein zusätzlicher Befestigungsstutzen 40 angeordnet.The wiper shaft 22 protrudes from the end face 36 of the bearing housing 24 and has a thread at its first end 26, which is screwed on the fastening element 38 designed as a screw nut for fastening the wiper arm 28. Depending on the design of the wiper arm 28, an additional fastening stub 40 is arranged between the fastening element 38 and the wiper arm 28.
Zwischen der Stirnseite 36 des Lagergehäuses 24 und dem Ansatz 34 der Wischerwelle 22 ist ein Element 42 angeordnet. Dieses Element 42 ist radial seitlich auf die Wischerwelle 22 aufsteckbar und aus gestanztem und gebogenem Blech ausgebildet.An element 42 is arranged between the end face 36 of the bearing housing 24 and the extension 34 of the wiper shaft 22. This element 42 can be attached radially laterally to the wiper shaft 22 and is made of stamped and bent sheet metal.
Figur 3 zeigt ein Wischerlager 14 an einem Trägerrohr 12 einer erfindungsgemäßen Scheibenwischvorrichtung 10 in einer perspektivischen Darstellung. Das Wischerlager 14 trägt mit seinem Lagergehäuse 24 die Wischerwelle 22, die an ihrem ersten Ende 26 mit einem nicht gezeichneten Wischerarm verbindbar ist. An ihrem anderen Ende 30 ist die Wischerwelle drehfest mit der Antriebskurbel 32 verbunden, so dass sie durch die Bewegung des Wischermotors 18 selbst in Bewegung versetzt werden kann. Das Wischerlager 14 weist einen Kragen 43 auf, der sich ringförmig um die Wischerwelle 22 erstreckt und zur Aufnahme des Elementes 42 dient. Um zu verhindern, dass sich das Element 42 um die Drehachse der Wischerwelle 22 dreht, weist der Kragen 43 zwei Rippen 45 als Sicherungsmittel auf, die derart angeordnet sind, dass sie das Radialspiel des Elementes 42, welches hier explosionsartig neben dem Wischerlager 14 gezeichnet ist, hemmen oder begrenzen.FIG. 3 shows a wiper bearing 14 on a carrier tube 12 of a windshield wiper device 10 according to the invention in a perspective illustration. The wiper bearing 14 carries with its bearing housing 24 the wiper shaft 22 which can be connected at its first end 26 to a wiper arm (not shown). At its other end 30, the wiper shaft is connected in a rotationally fixed manner to the drive crank 32, so that it can itself be set in motion by the movement of the wiper motor 18. The wiper bearing 14 has a collar 43 which extends in a ring around the wiper shaft 22 and serves to receive the element 42. In order to prevent the element 42 from rotating about the axis of rotation of the wiper shaft 22, the collar 43 has two ribs 45 as securing means, which are arranged in such a way that the radial play of the element 42, which here is shown explosively next to the wiper bearing 14 , inhibit or limit.
Die Wischerwelle 22 weist im Bereich ihres ersten Endes 26 den Ansatz 34 auf, der sich in montierter Position am Element 42 abstützt. Der Kragen 43 ist dabei gerade so hoch gewählt, dass er der Höhe eines gestauchten Elementes 42 entspricht. Dadurch ergibt sich einerseits eine optimale Lagerung der Wischerwelle 22 und andererseits ein maximales Ausnutzen des Dämpfungsweges des Elementes 42. Natürlich kann der Kragen 43 auch eine andere geeignete Höhe aufweisen, sie sollte nur geringer sein als die Höhe des Elementes 42. In einer Variation der Erfindung kann die Antriebskurbel 32 auch selbst den Ansatz 34 bilden, in dem die Antriebskurbel 32 im Bereich des ersten Endes 26 der Wischerwelle angeordnet ist. In einer weiteren Variation kann das Element auch einstückig mit dem Kragen 43, beziehungsweise mit dem Wischerlager 14 oder mit der Antriebskurbel 32 ausgebildet sein.In the area of its first end 26, the wiper shaft 22 has the shoulder 34, which is supported on the element 42 in the mounted position. The collar 43 is chosen so high that it corresponds to the height of a compressed element 42. This results in on the one hand an optimal mounting of the wiper shaft 22 and on the other hand a maximum utilization of the damping path of the element 42. Of course the collar 43 can also have another suitable height, it should only be less than the height of the element 42. In a variation of the invention the drive crank can 32 also form the extension 34 itself, in which the drive crank 32 is arranged in the region of the first end 26 of the wiper shaft. In a further variation, the element can also be formed in one piece with the collar 43, or with the wiper bearing 14 or with the drive crank 32.
In Figur 4 ist das Trägerrohr 12 mit einem Wischerlager 14 einer erfindungsgemäßen Scheibenwischvorrichtung 10 gemeinsam mit dem Element 42 komplett montiert dargestellt.FIG. 4 shows the carrier tube 12 with a wiper bearing 14 of a windshield wiper device 10 according to the invention, together with the element 42, completely assembled.
Das Element 42 ist seitlich auf den Kragen 43 des Wischerlagers 14 aufgesteckt worden und radial durch die Rippen 45 fixiert. Das Element 42 umgreift damit klammerartig den Kragen 43. Axial fixiert ist das Element 42, einerseits durch den Ansatz 34 der Wischerwelle 22, andererseits durch die Auflage 47 am Lagergehäuse 24 des Wischerlagers 14 selbst. Die Auflage 47 wird typischerweise durch Befestigungselemente des Wischerlagers 14 gebildet, bzw. ist einstückig mit diesem ausgebildet.The element 42 has been slipped onto the collar 43 of the wiper bearing 14 and fixed radially by the ribs 45. The element 42 thus grips around the collar 43 like a clamp. The element 42 is axially fixed, on the one hand by the shoulder 34 of the wiper shaft 22, and on the other hand by the support 47 on the bearing housing 24 of the wiper bearing 14 itself. The support 47 is typically formed by fastening elements of the wiper bearing 14 , or is integrally formed with this.
Die Figuren 5 a, 5b und 6a, 6b zeigen verschiedene Ausbildungen eines Elementes 42 einer erfindungsgemäßen Scheibenwischvorrichtung 10. Aus Einfachheitsgründen ist in diesen Figuren das Element 42 noch nicht klammerartig gebogen, sondern noch in einer ebenen, flachen Form gezeigt, wie sie typischerweise innerhalb des Herstellungsprozesses vorliegen kann. Figur 5a zeigt ein einfaches Element 42, welches aus einem stabilen Draht gebogen ist. Durch wechselweises Hin- und Herbiegen in bestimmten Abständen des Drahtes ergibt sich eine mäanderartige Struktur mit federartigem Charakter mit der Höhe hl des Elementes 42. In Figur 5b ist das Element aus Figur 5a in zusammengestauchter Position dargestellt. Die einzelnen Bereiche schmiegen sich nun direkt aneinander, so dass das Element die Höhe h2, die typischerweise kleiner als die Höhe hl ist, besitzt. Diese Höhe h2 ist typischerweise auch die Höhe, die der Kragen 43 aus Figur 3 aufweist. Natürlich ist eine derartige Form auch durch Stanzen erzielbar. In Figur 6a ist eine Variation des Elementes 42 aus Figur 5 dargestellt. Das hier gezeigte Element 42 ist aus Blech ausgestanzt und/oder gelocht, so dass sich geschlossene Hohlbereiche 51 bilden. In Figur 6b ist das Element 42 aus Figur 6a gestaucht dargestellt. Wie im Eingang des letzten Absatzes bereits erwähnt, werden die in den Figuren 5a, 5b und 6a, 6b dargestellten Elemente 42 noch um eine Achse, welche in ihrer Deformationsrichtung liegt, zylinderartig gebogen, derart, dass noch ein Schlitz bzw. eine Öffnung verbleibt, mit der das Element 42 auf den Kragen 43 des Lagergehäuses 24 aufgesteckt werden kann. In diesem Sinne sind die Elemente 42 nicht vollständig rotationssymmetrisch. Nach dem Aufstecken auf den Kragen 43 verrastet das Element 42 am Wischerlager durch seine Eigenspannung, ähnlich wie ein Sprengring. Nach einer Deformation kann das Element 42 auf diese Weise auch sehr leicht wieder vom Wischerlager 14 entfernt werden und durch ein neues Element ersetzt werden, ohne dass die Scheibenwischvorrichtung 10 demontiert werden muss. Eine optimale Energieaufnahme des Elementes 42 wird durch eine vollständige Nutzung des Raumes zwischen der Anlauffläche 47 und dem Ansatz 34 erreicht. Die in den Figuren 6a, 6b gezeigten Elemente 42 lassen sich sehr leicht durch Stanzen aus einem Blechstreifen fertigen, der im Anschluß daran auch noch gebogen werden kann. Auf diese Weise lässt sich auch eine definierte Steifigkeit in einfacher Weise einstellen. In einer Variation muss das Element 42 natürlich nicht nur zylinderförmig, sondern auch elliptisch oder in anderer Weise geeignet gebogen sein. Derartige Elemente 42 können am einfachsten auf Stufenpressen oder in Folgeverbundwerkzeugen gefertigt werden. Vorzugsweise ist das Element 42 aus Stahlwerkstoffen mit einem Korrosionsschutz, beispielsweise einer Feuerverzinkung, ausgebildet, kann aber auch aus Zink- oder Aluminiumblech, aus Kunststoff oder einer Keramik ausgebildet sein. Wird das Element 42 aus einem Draht gewickelt, so kann auch in einem Fertigungs schritt sofort die endgültige Geometrie, also die Zylindergeometrie, hergestellt werden. Figures 5 a, 5b and 6a, 6b show different configurations of an element 42 of a windshield wiper device 10 according to the invention. For reasons of simplicity, the element 42 in these figures is not yet bent like a clamp, but is still shown in a flat, flat shape, as is typically found within the Manufacturing process can exist. Figure 5a shows a simple element 42 which is bent from a stable wire. By alternately bending back and forth at certain intervals of the wire, a meandering structure with a spring-like character results with the height h1 of the element 42. FIG. 5b shows the element from FIG. 5a in a compressed position. The individual areas now nestle directly against one another, so that the element has a height h2, which is typically less than the height hl. This height h2 is typically also the height that the collar 43 from FIG. 3 has. Of course, such a shape can also be achieved by stamping. FIG. 6a shows a variation of the element 42 from FIG. 5. The element 42 shown here is punched out of sheet metal and / or perforated, so that closed hollow areas 51 are formed. In FIG. 6b the element 42 from FIG. 6a is shown compressed. As already mentioned at the beginning of the last paragraph, the elements 42 shown in FIGS. 5a, 5b and 6a, 6b are bent in a cylinder-like manner around an axis lying in their direction of deformation, such that a slot or an opening still remains, with which the element 42 can be plugged onto the collar 43 of the bearing housing 24. In this sense, the elements 42 are not completely rotationally symmetrical. After being placed on the collar 43, the element 42 latches on the wiper bearing due to its inherent tension, similar to a snap ring. After deformation, the element 42 can also be very easily removed from the wiper bearing 14 in this way and replaced by a new element without the windshield wiper device 10 having to be dismantled. Optimal energy absorption of the element 42 is achieved by making full use of the space between the contact surface 47 and the extension 34. The elements 42 shown in FIGS. 6a, 6b can be produced very easily by punching from a sheet metal strip, which can also be bent thereafter. In this way, a defined stiffness can also be set in a simple manner. In a variation, the element 42 must of course not only be cylindrical, but also be elliptically or otherwise suitably curved. Such elements 42 can be manufactured most easily on step presses or in progressive dies. The element 42 is preferably made of steel materials with a corrosion protection, for example a hot-dip galvanizing, but can also be made of zinc or aluminum sheet, plastic or ceramic. If the element 42 is wound from a wire, the final geometry, that is to say the cylinder geometry, can also be produced immediately in one production step.

Claims

Ansprüche Expectations
1. Scheibenwischvorrichtung (10), insbesondere für ein Kraftfahrzeug, mit mindestens einem Wischerlager (14), welches ein Lagergehäuse (24) umfasst, einer Wischerwelle (22), die im Lagergehäuse (24) gelagert ist und an einem ersten Ende (26) einen Wischerarm (28) trägt, und einem Element (42), das die Wischerwelle (22) axial fixiert, dadurch gekennzeichnet, dass das Element (42) auf die Wischerwelle - (22) oder das Lagergehäuse (24) aufsteckbar, insbesondere radial aufsteckbar ist.1. Windscreen wiper device (10), in particular for a motor vehicle, with at least one wiper bearing (14) which comprises a bearing housing (24), a wiper shaft (22) which is mounted in the bearing housing (24) and at a first end (26) a wiper arm (28), and an element (42) which axially fixes the wiper shaft (22), characterized in that the element (42) can be plugged onto the wiper shaft - (22) or the bearing housing (24), in particular radially is.
2. Scheibenwischvorrichtung (10) nach Anspruch 1, dadurch gekennzeichnet, dass das Element (42) derart ausgebildet ist, dass es bei Einwirkung einer Kraft (K) in axialer Richtung auf das erste Ende (26) der Wischerwelle (22) verformbar, insbesondere komprimierbar, ist.2. Windshield wiper device (10) according to claim 1, characterized in that the element (42) is designed such that it is deformable, in particular, upon the action of a force (K) in the axial direction on the first end (26) of the wiper shaft (22) is compressible.
3. Scheibenwischvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Wischerwelle (22) einen Ansatz (34) aufweist und das Element (42) zwischen dem Lagergehäuse (24) und dem Ansatz (34) angeordnet ist.3. Windshield wiper device (10) according to one of the preceding claims, characterized in that the wiper shaft (22) has an extension (34) and the element (42) is arranged between the bearing housing (24) and the extension (34).
4. Scheibenwischvorrichtung (10) nach Anspruch 3, dadurch gekennzeichnet, dass der Ansatz (34) scheibenförmig ausgebildet ist und die Wischerwelle (22) umfasst.4. Windshield wiper device (10) according to claim 3, characterized in that the extension (34) is disc-shaped and comprises the wiper shaft (22).
5. Scheibenwischvorrichtung (10) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der Ansatz (34) einstückig mit der Wischerwelle (22) ausgebildet ist.5. Windshield wiper device (10) according to claim 3 or 4, characterized in that the extension (34) is formed in one piece with the wiper shaft (22).
6. Scheibenwischvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Element (42) als Stanz-/Biegeteil oder aus gewickeltem Draht ausgebildet ist. 6. Windscreen wiper device (10) according to one of the preceding claims, characterized in that the element (42) is designed as a stamped / bent part or from wound wire.
7. Scheibenwischvomchtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Element (42) die Wischerwelle (22) um mehr als 180 Grad, insbesondere mehr als 220 Grad, vorzugsweise um mehr als 270 Grad umschließt.7. windshield wiper device (10) according to one of the preceding claims, characterized in that the element (42) encloses the wiper shaft (22) by more than 180 degrees, in particular more than 220 degrees, preferably by more than 270 degrees.
8. Scheibenwischvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Element (42) am Lagergehäuse (24) oder an der Wischerwelle (22), insbesondere durch Eigenspannung verrastet ist.8. Windshield wiper device (10) according to one of the preceding claims, characterized in that the element (42) on the bearing housing (24) or on the wiper shaft (22) is locked, in particular by internal stress.
9. Scheibenwischvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Element (42) korrosionsgeschützt, insbesondere feuerverzinkt ist.9. Windscreen wiper device (10) according to one of the preceding claims, characterized in that the element (42) is protected against corrosion, in particular hot-dip galvanized.
10. Scheibenwischvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lagergehäuse (24) Sicherungsmittel (45) gegen eine Verdrehen des Elements (42) aufweist. 10. Windscreen wiper device (10) according to one of the preceding claims, characterized in that the bearing housing (24) has securing means (45) against rotation of the element (42).
EP03740045A 2002-11-29 2003-05-30 Window-wiping device, particularly for a motor vehicle Withdrawn EP1567395A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10255774 2002-11-29
DE10255774.8A DE10255774B4 (en) 2002-11-29 2002-11-29 Windscreen wiper device, in particular for a motor vehicle
PCT/DE2003/001765 WO2004050439A1 (en) 2002-11-29 2003-05-30 Window-wiping device, particularly for a motor vehicle

Publications (1)

Publication Number Publication Date
EP1567395A1 true EP1567395A1 (en) 2005-08-31

Family

ID=32308840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03740045A Withdrawn EP1567395A1 (en) 2002-11-29 2003-05-30 Window-wiping device, particularly for a motor vehicle

Country Status (8)

Country Link
US (1) US7581278B2 (en)
EP (1) EP1567395A1 (en)
JP (1) JP4532284B2 (en)
KR (1) KR20050085139A (en)
CN (1) CN100506615C (en)
BR (1) BR0311692A (en)
DE (1) DE10255774B4 (en)
WO (1) WO2004050439A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042847A1 (en) * 2005-09-09 2007-03-15 Robert Bosch Gmbh Windscreen wiper device, in particular for a motor vehicle
US8448289B2 (en) * 2006-03-24 2013-05-28 Robert Bosch Gmbh Windscreen wiper drive arrangement
DE102007034028A1 (en) * 2007-07-20 2009-01-22 Robert Bosch Gmbh mounting assembly
EP2143601B1 (en) * 2008-07-07 2013-01-23 Volvo Car Corporation Wiper assembly
DE102010029105B4 (en) * 2009-10-21 2018-01-11 Robert Bosch Gmbh wiper device
US8745810B2 (en) * 2010-11-15 2014-06-10 Trico Products Corporation Pivot body for windshield wiper system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413635C2 (en) 1994-04-20 1996-08-08 Daimler Benz Ag Fastening device for a windshield wiper system
JPH0924800A (en) 1995-07-10 1997-01-28 Asmo Co Ltd Temporary hold structure for wiper pivot
DE59708231D1 (en) * 1996-05-10 2002-10-24 Volkswagen Ag Device for axially fixing an axially essentially unloaded shaft
FR2749243B1 (en) 1996-05-29 1998-07-10 Valeo Systemes Dessuyage ARRANGEMENT FOR MOUNTING ON THE BODY OF A MOTOR VEHICLE OF A WINDSCREEN WIPER MECHANISM
DE69828368T2 (en) * 1997-10-22 2005-12-08 Nissan Motor Co., Ltd., Yokohama Wiper device for motor vehicles
JPH11139256A (en) 1997-11-11 1999-05-25 Jidosha Denki Kogyo Co Ltd Automotive wiper
KR100616267B1 (en) * 1998-01-29 2006-08-28 로베르트 보쉬 게엠베하 Wiper device
DE19804135B4 (en) 1998-02-03 2011-06-30 Robert Bosch GmbH, 70469 wiper bearing
GB2347340A (en) * 1999-03-03 2000-09-06 Trico Products Windscreen wiper with safety system to reduce spearing danger
EP1033295A3 (en) 1999-03-03 2002-05-15 Trico Products (Dunstable) Limited Windscreen wiper assembly
JP3564007B2 (en) 1999-08-05 2004-09-08 株式会社ミツバ Vehicle wiper device
GB0025520D0 (en) * 2000-10-18 2000-11-29 Trico Products Dunstable Ltd Safety windscreen
US6568023B2 (en) * 2000-12-14 2003-05-27 Ford Global Technologies, L.L.C. Wiper pivot

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004050439A1 *

Also Published As

Publication number Publication date
KR20050085139A (en) 2005-08-29
DE10255774B4 (en) 2017-02-02
US7581278B2 (en) 2009-09-01
BR0311692A (en) 2005-03-22
WO2004050439A1 (en) 2004-06-17
US20060162113A1 (en) 2006-07-27
JP4532284B2 (en) 2010-08-25
CN1703340A (en) 2005-11-30
DE10255774A1 (en) 2004-06-09
JP2006507975A (en) 2006-03-09
CN100506615C (en) 2009-07-01

Similar Documents

Publication Publication Date Title
EP3431815B1 (en) Belt tensioning device
EP1926641B1 (en) Windscreen wiper device, in particular for a motor vehicle
DE102004006016A1 (en) Windscreen wiper device, in particular for a motor vehicle
DE4409957B4 (en) Bearing device for a shaft or axle, especially for a windshield wiper system
EP1291254A2 (en) Windscreen wiper device
DE19839407C1 (en) Electric drive unit
EP2347425A1 (en) Electromagnet
DE102018100458A1 (en) Transmission housing unit and gear unit with wedge-shaped compensation element for axial play compensation
EP0918670B1 (en) Electrical drive unit
EP1567395A1 (en) Window-wiping device, particularly for a motor vehicle
WO2012156119A1 (en) Bearing device
DE102005035088A1 (en) Windscreen wiper device, in particular for a motor vehicle
EP1862361B1 (en) Wipermotor-unit mounted on a support and mounting method
EP1763460B1 (en) Device for fastening a window wiping device to a motor vehicle
EP1637367B1 (en) Spring plate
EP1567396A1 (en) Window-wiping device, particularly for a motor vehicle
DE102020105412A1 (en) Gear housing unit with arched corrugated spring support for axial clearance compensation
DE10208538B4 (en) Wiper system with a circuit board
DE10242114A1 (en) Windscreen wiper device, in particular for a motor vehicle
DE102010043323B4 (en) Wiper gear
DE102007004873A1 (en) Statormagnetanordnung
DE3508738A1 (en) Electrical machine
DE102004010513A1 (en) Windscreen wiper device, in particular for a motor vehicle
EP1720747B1 (en) Windshield wiping device, especially for a motor vehicle
DE102011007155A1 (en) Clamping rail for traction drive of internal combustion engine, is rotatably mounted around longitudinal axis and has recess, by which pivot axis extends centrally, where clamping rail is designed for deflecting traction unit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050629

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

RBV Designated contracting states (corrected)

Designated state(s): CZ DE ES FR GB IT

17Q First examination report despatched

Effective date: 20100202

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20101201