EP1212220A1 - Systeme d'entrainement d'essuie-glace - Google Patents

Systeme d'entrainement d'essuie-glace

Info

Publication number
EP1212220A1
EP1212220A1 EP01921172A EP01921172A EP1212220A1 EP 1212220 A1 EP1212220 A1 EP 1212220A1 EP 01921172 A EP01921172 A EP 01921172A EP 01921172 A EP01921172 A EP 01921172A EP 1212220 A1 EP1212220 A1 EP 1212220A1
Authority
EP
European Patent Office
Prior art keywords
joint
drive
rocker
compensating
support
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Withdrawn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
EP01921172A
Other languages
German (de)
English (en)
Inventor
Gerd Kuehbauch
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 EP1212220A1 publication Critical patent/EP1212220A1/fr
Withdrawn legal-status Critical Current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
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • 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
    • B60S1/3402—Wiper arms; Mountings therefor with means for obtaining particular wiping patterns
    • B60S1/3409—Wiper arms; Mountings therefor with means for obtaining particular wiping patterns the wiper arms consisting of two or more articulated elements

Definitions

  • the invention relates to a windshield wiper drive with a pivotably mounted drive shaft, a drive rocker fixedly connected to it, a coupling rocker which is connected to the drive rocker by a drive joint, a support rocker which is connected to the coupling rocker by a support joint and is supported by a blind joint, one Windscreen wiper arm which is connected to the coupling rocker arm by a joint, a pressure spring which acts on the windscreen wiper arm relative to the coupling rocker arm, and a compensating joint which is arranged on one of the rockers.
  • Such a wiper drive is known from EP-A-0 182 123. It is used to move a wiper blade attached to the wiper arm with a reciprocating movement over a windshield to be cleaned.
  • the compensating joint is provided, which is arranged on the coupling rocker and divides it into two sections which can be moved relative to one another.
  • the disadvantage of this design is that the pressure spring has a tilting moment exerts on the coupling rocker, which leads to increased loads on the various bearings.
  • the object of the invention is therefore to develop a windshield wiper drive of the type mentioned in such a way that the tilting moment generated by the pressure spring does not impair the operation of the windshield wiper drive.
  • the windshield wiper drive with the features of claim 1 has the advantage that the compensating spring fully or at least partially compensates for the tilting moment that is generated by the pressure spring, so that the bearings of the coupling rocker are less loaded. This allows them to be made smaller, and the entire windshield wiper drive runs smoothly.
  • FIG. 1 is a schematic view of a wiper drive according to a first embodiment of the invention
  • FIG. 2 is a perspective view of the drive rocker, the support rocker and the coupling rocker of the wiper drive of Figure 1;
  • - Figure 3 is a schematic view of a wiper drive according to a second embodiment of the invention;
  • FIG. 4 is a perspective view of the drive rocker, the support rocker and the coupling rocker of the windshield wiper drive of Figure 3;
  • a wiper drive according to a first embodiment is shown schematically in FIG. It contains a drive arm 10 which is mounted in a drive arm swivel joint 12 in a vehicle-fixed manner.
  • the drive rocker 10 can be made to move back and forth by a windshield wiper motor (not shown).
  • a coupling rocker 14 is connected to the drive rocker 10 by a drive joint 16.
  • the drive joint 16 is designed here as a swivel joint.
  • a support rocker 18 is connected to the coupling rocker 14 by a support joint 20, which is designed here as a ball joint.
  • the Stützschwin ⁇ e 18 is fixed to the vehicle by a blind joint 22, which is designed here as a swivel joint.
  • the support rocker 18 is provided with a compensating joint 24, the pivot axis of which is approximately perpendicular to the pivot axis defined by the blind joint 22.
  • the compensating joint 24 makes it possible to pivot the support joint 20 in a plane which is defined by the pivot axis of the blind joint 22 and the support joint 20.
  • a windshield wiper arm 26 is connected in a manner known per se, a windshield wiper arm swivel joint 28 and a pressure spring 30 being provided, so that a windshield wiper blade 32 attached to the windshield wiper arm 26 is pressed against a windshield to be cleaned
  • a compensating spring 34 which is designed as a tension spring.
  • the compensating spring is arranged and dimensioned so that it has the tilting moment due to the compensating spring and the is exerted on the anti-secondary joint 16 on the windshield wiper blade 32 supporting the windshield, compensated, so the compensating spring generates a force acting on the support joint to the windshield
  • the compensating spring is integrated in the support rocker arm.
  • the force exerted by it on the support joint can be adjusted by the distance of the line of action of the compensating spring from the axis of the compensating joint 24 and by the spring force
  • FIGS. 3 and 4 show a windshield wiper drive according to a second embodiment.
  • the same reference numerals are used for the components known from the first embodiment, and reference is made to the above explanations
  • the second embodiment is also a five-joint mechanism.
  • the arrangement of the joints for the drive rocker and the support rocker is interchanged, so the support joint 20 is designed as a swivel joint, while the anti-secondary joint 16 is now also a ball joint now provide the drive rocker with the compensating joint 24 and the compensating spring 34.
  • FIG. 5 shows a windshield wiper drive according to a third embodiment.
  • the same reference numerals are used for the components which are known from the preceding embodiments, and reference is made to the above explanations.
  • the coupling rocker is provided with the compensating joint 24 and the compensating spring 34, so that the support joint is immediately relieved of the tilting moment which is generated by the pressure spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne un système d'entraînement d'essuie-glace, comprenant un arbre d'entraînement monté de manière pivotante, une bielle oscillante d'entraînement (10) solidaire de ce dernier, une bielle oscillante d'accouplement (14), raccordée à la bielle oscillante d'entraînement par une articulation d'entraînement (16), une bielle oscillante de soutien (18), raccordée à la bielle oscillante d'accouplement (14) par une articulation de soutien (20) et montée par l'intermédiaire d'une articulation dissimulée (22), un bras d'essuie-glace (26) raccordé à la bielle oscillante d'accouplement par une articulation (28), un ressort de pression (30) sollicitant le bras d'essuie-glace par rapport à la bielle oscillante d'accouplement, et une articulation d'équilibrage (24) placée sur une des bielles. L'invention vise à réduire le couple de renversement produit par le ressort de pression. A cet effet, un ressort d'équilibrage (34) est placé sur l'articulation d'équilibrage.
EP01921172A 2000-03-17 2001-03-09 Systeme d'entrainement d'essuie-glace Withdrawn EP1212220A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10013201A DE10013201A1 (de) 2000-03-17 2000-03-17 Scheibenwischerantrieb
DE10013201 2000-03-17
PCT/DE2001/000890 WO2001068423A1 (fr) 2000-03-17 2001-03-09 Systeme d'entrainement d'essuie-glace

Publications (1)

Publication Number Publication Date
EP1212220A1 true EP1212220A1 (fr) 2002-06-12

Family

ID=7635232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01921172A Withdrawn EP1212220A1 (fr) 2000-03-17 2001-03-09 Systeme d'entrainement d'essuie-glace

Country Status (10)

Country Link
US (1) US6817056B2 (fr)
EP (1) EP1212220A1 (fr)
JP (1) JP2003526569A (fr)
KR (1) KR20020015325A (fr)
CN (1) CN1170707C (fr)
AU (1) AU4826001A (fr)
BR (1) BR0105101A (fr)
DE (2) DE10013201A1 (fr)
PL (1) PL350887A1 (fr)
WO (1) WO2001068423A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013202A1 (de) * 2000-03-17 2001-09-27 Bosch Gmbh Robert Scheibenwischerantrieb
DE10146721A1 (de) * 2001-09-21 2003-04-17 Bosch Gmbh Robert Wischerarm sowie Scheibenwischvorrichtung und Verfahren zur Herstellung eines Wischerarms, insbesondere für eine Wischvorrichtung eines Kraftfahrzeugs
DE10361746A1 (de) * 2003-12-29 2005-07-28 Robert Bosch Gmbh Wischereinrichtung zum Wischen einer Windschutzscheibe
DE102008001935A1 (de) * 2008-05-21 2009-11-26 Robert Bosch Gmbh Kurbel für einen Wischerantrieb sowie Wischerantrieb
DE102008001931A1 (de) 2008-05-21 2009-11-26 Robert Bosch Gmbh Kurbel für einen Wischerantrieb sowie Wischerantrieb
DE102009002850A1 (de) * 2009-05-06 2010-11-11 Robert Bosch Gmbh Scheibenwischervorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE901052A (fr) 1984-11-14 1985-05-14 Andre Leroy Un systeme d'essuie-glace a mecanisme de guidage spatial.
DE19501211A1 (de) * 1995-01-17 1996-07-18 Teves Gmbh Alfred Wischarm für eine hubgesteuerte Scheibenwischvorrichtung
DE19816210B4 (de) 1998-04-09 2005-06-02 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Vorrichtung zum Wischen von Scheiben, insbesondere mit sphäroidischer Wölbung
DE10013190A1 (de) * 2000-03-17 2001-09-27 Bosch Gmbh Robert Scheibenwischerantrieb

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0168423A1 *

Also Published As

Publication number Publication date
PL350887A1 (en) 2003-02-10
JP2003526569A (ja) 2003-09-09
DE10013201A1 (de) 2001-09-27
US6817056B2 (en) 2004-11-16
BR0105101A (pt) 2002-02-19
KR20020015325A (ko) 2002-02-27
CN1364123A (zh) 2002-08-14
US20020178526A1 (en) 2002-12-05
CN1170707C (zh) 2004-10-13
AU4826001A (en) 2001-09-24
WO2001068423A1 (fr) 2001-09-20
DE10190915D2 (de) 2002-08-14

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