EP2076416A1 - Balai d'essuie-glace pour nettoyer une vitre - Google Patents

Balai d'essuie-glace pour nettoyer une vitre

Info

Publication number
EP2076416A1
EP2076416A1 EP07820417A EP07820417A EP2076416A1 EP 2076416 A1 EP2076416 A1 EP 2076416A1 EP 07820417 A EP07820417 A EP 07820417A EP 07820417 A EP07820417 A EP 07820417A EP 2076416 A1 EP2076416 A1 EP 2076416A1
Authority
EP
European Patent Office
Prior art keywords
wiper
strip
rotation
lip
wiper blade
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Withdrawn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
EP07820417A
Other languages
German (de)
English (en)
Inventor
Lothar Trenkle
Heiko Volz
Stephan Mayer
Joachim Zimmer
Godelieve Kraemer
Juergen Rapp
Michael Kruse
Achim Kraus
Francois Schabanel
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 EP2076416A1 publication Critical patent/EP2076416A1/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Withdrawn legal-status Critical Current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
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3801—Wiper blades characterised by a blade support harness consisting of several articulated elements
    • 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
    • B60S1/38—Wiper blades
    • 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
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3813—Means of supporting or holding the squeegee or blade rubber chacterised by a support harness consisting of several articulated elements
    • 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
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3817—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
    • B60S2001/382—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support the backing strip being an essentially planar reinforcing strip, e.g. vertebra
    • 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
    • B60S1/38—Wiper blades
    • B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
    • B60S2001/3836—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape

Definitions

  • the invention relates to a wiper blade for a windshield wiper.
  • Known windshield wipers have a wiper arm, which is constructed of a fastening part and a hinged thereto via a hinged joint part with a wiper rod, the wiper blade during the pivoting movement over the
  • the wiper blade has a generally multi-membered support bracket system with parent and minor brackets, of which at least some with claws hold at their ends a wiper strip on the head strip.
  • the multi-link suspension system and spring rails inserted in the head strip enable the wiper strip to be adapted to the even contact pressure of a curved windscreen during wiping.
  • Such windshield wipers are e.g. known from DE 199 08 282 A1.
  • the support bracket system guides the wiper strip in a plane which is approximately perpendicular to the vehicle window and tilts a wiper lip connected to the wiper strip via a tilting web in the reversing positions of the windshield wiper in order to achieve a good wiping result in both wiping directions through a favorable angle of attack of the wiper lip to the vehicle window receive.
  • the pivot axis of the windshield wiper is usually perpendicular to the vehicle window, so that the center plane of the support bracket system is perpendicular to the vehicle window. Since the vehicle windows have different curvatures in the wiping area, this is only true for one to some areas.
  • the object of the invention is therefore to provide an improved wiper blade.
  • the idea underlying the solution to this problem is to influence the angle of attack and the laying behavior of the wiper lip.
  • the wiper lip according to claim 1 is rotated about an axis parallel to its longitudinal axis, the rotation preferably following the course of the slice normal along the wiper strip.
  • the rotation of the wiper lip causes an adaptation of the actual to the required angle of attack of the wiper lip to the disc, resulting in an improved wiping result.
  • the angles of attack on the inner and outer circuits are matched and the range of the normal error is reduced.
  • the folding of the wiper lip in the reversal positions of the windshield wiper are facilitated and occurring noise is reduced.
  • the claws of the subordinate brackets are rotated at different angles relative to the median plane of the support bracket system in such a way that the wiper strip held by them undergoes a desired rotation over their length.
  • the tilting ridge is fastened to the head strip under an angle that varies over the length of the wiper strip and thereby causes the wiper lip to rotate against the center plane of the support bracket system.
  • the head strip of the wiper strip is made of a torsionally rigid material and rotated about an axis parallel to its longitudinal axis.
  • the wiper strip is connected to a spring rail of torsion-resistant material, which has a twist and a desired rotation of the overall th wiper strip causes.
  • the individual claws of the subordinate bracket are either rotated according to the rotation of the wiper strip against the central axis of the support bracket system, or the claws grant the wiper strip held by them sufficient clearance to form the desired rotation.
  • the rotation of the wiper strip over its entire length in ranges of 0 to 2 degrees, 2 to 4 degrees, or 4 to 6 degrees, the rotation per unit length in the range of 0 to 0.2 degrees per Centimeters lies.
  • the rotation per unit length is constant over the entire wiper strip.
  • the rotation varies per unit length along the wiper strip to a particularly good adaptation to the
  • the wiper strip can be subdivided into two or three regions of different rotation per unit length.
  • the middle region of the wiper strip is more twisted than the outer regions.
  • the central region of the wiper strip is less strongly rotated than the outer regions.
  • the invention requires only minor changes to the geliu- figen design of a windshield wiper, which only small
  • FIG. 1 shows a schematic side view of a wiper blade according to the invention with a wiper rod
  • FIG. 2 shows a section through a wiper strip in the direction of the arrow II in FIG. 1;
  • FIG. 3 shows a section through a wiper strip in the direction of the arrow III in FIG. 1;
  • FIG. 4 shows a section through a wiper strip in the direction of the arrow IV in FIG. 1;
  • FIG. 5 shows a section through a wiper strip with spring rail in the direction of the arrow V in FIG. 1;
  • FIG. 6 shows a section through a claw arranged in a rotated manner and a wiper strip in the direction of the arrow VI in FIG. 1;
  • FIG. 7 shows a section through a wiper strip with a wiper lip attached at an angle to the head strip in the direction of the arrow VII in FIG. 1;
  • FIG. 8 shows a view of a wiper blade with two regions of different rotation per unit length in the direction of the arrow VIII in FIG. 1; FIG. ;
  • FIG. 9 shows a view of a wiper blade with three regions of different rotation per unit length in the direction of the arrow IX in FIG. 1.
  • a wiper blade 1 as in FIG. 1 has a mounting bracket system 16 of superordinate brackets 17 and claw brackets 9 fastened thereto, which is connected to a wiper rod 10.
  • the wiper rod 10 is movably mounted on a vehicle body. Through the various brackets 9, 17 of the support bracket system 16 and the wiper rod 10 extends an imaginary center plane 22, which is identical in Fig. 1 with the plane of the drawing.
  • the claw brackets 9 have at their ends claws 5, which hold a wiper strip 7.
  • the wiper strip 7 consists of a head strip 6, to which a wiper lip 3 is attached via a tilting web 8.
  • the claws 5 surround the head strip 6.
  • a central axis 23 can be thought of by the tilting web 8 and the wiper lip 3.
  • the outer end of the wiper strip 7 sweeps over the outer circle of the wiper circle during the wiping movement, the inner end of the wiper strip 7 covers the inner circle.
  • the vehicle body has an opening in which a disc 2, for example, used as a windshield.
  • the disc 2 is curved in the surface. 2, 3 and 4 show the disc 2 at different positions along the wiper strip 7, wherein in the various areas the disc 2 has a different position with respect to the central plane 22 of the mounting bracket system 16.
  • the wiper blade 1 is moved during the wiping of the disc 2 on the disc 2, wherein the center plane 22 of the support bracket system 16 along the wiper strip 7 occupy different angles to the surface of the disc 2. Since the wiping property of the wiper strip 7 and the Umlege the wiper lip 3 depends on the angle between the O- ber Design of the disc 2 and the wiper lip 3, a different angular position of the wiper lip 3 along the wiper strip 7 with respect to the median plane 22 of the support bracket system 16 is advantageous.
  • FIG. 2 shows a cross section through the wiper strip 7 in the outer region of the wiper strip 7.
  • the central axis 23 of the wiper lip 3 is rotated in the outer region of the wiper strip 7 by an angle ⁇ 2 in relation to the center plane 22 of the support bracket system 16, whereby the wiper strip 7 is arranged with the wiper lip 3 perpendicular to the disc 2.
  • This angle changes along the wiper strip 7.
  • Fig. 3 it can be seen that the rotation in the middle region of the wiper strip 7 is an angle ß3.
  • the central axis 23 of the wiper lip 3 and the center plane 22 of the support bracket system 16 are rotated by an angle ß4 against each other, as shown in FIG. 4.
  • the wiper lip 3 in different areas of the disc 2, in which the disc 2 is arranged differently inclined nevertheless has an approximately equal angle to the disc 2.
  • different areas of the disc 2, which have different curvatures can be wiped better.
  • the angle between the center axis 23 and the disk 2 is in the range between 85 ° and 95 °.
  • the head strip 6 may be made of a sufficiently rigid material, such as a suitable plastic, and be permanently twisted.
  • the head strip 6 can be connected, as in FIG. 5, to a spring rail 4, wherein the spring rail 4 is made of sufficiently rigid material, for example a metal, and permanently twisted about its longitudinal axis.
  • the spring rail 4 may be executed as in Fig. 5 as elongated cuboid and extend inside the head strip 6.
  • the tilting ridge 8 is fixed under an over the length of the wiper strip 7 variable angle to the header 6 and thereby causes a desired rotation of the wiper lip 3 against the median plane 22 of the support bracket system 16.
  • all Claws 5 be attached at the same angle to the claw brackets 9 of the support bracket system 16.
  • the wiper lip 3 may have a uniform rotation per unit length.
  • the rotation per unit length can also vary in different areas of the wiper lip 3.
  • the wiper lip 3 may have an outer portion 11 and an inner portion 12, each having a different twist per unit length.
  • the wiper lip 3, as shown in Fig. 9, outer, middle and inner portions 13, 14, 15 have different rotation per unit length.
  • the rotation may be such that the rotation per unit length in the region 14 is greater than the rotation per unit length in the regions 13 and 15.
  • the twist per unit length in region 14 may be smaller than that in regions 13 and 15.
  • the angle between the central axis 23 of the wiper lip 3 and the median plane 22 of the mounting bracket system 15 in the different sections 11, 12, 13, 14, 15 different, but in each case partially kon- have constant values and change only in transition areas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

Balai d'essuie-glace (1) pour nettoyer une vitre (2), avec un système d'étrier porteur (16) auquel est fixée une raclette d'essuie-glace (7) qui présente une lèvre d'essuie-glace (3). Un plan médian (22) du système d'étrier porteur (16) et un axe médian (23) passant par la lèvre d'essuie-glace (3) forment entre eux un angle (ß) qui prend différentes valeurs sur la longueur du balai d'essuie-glace (1).
EP07820417A 2006-10-04 2007-09-20 Balai d'essuie-glace pour nettoyer une vitre Withdrawn EP2076416A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006046910 2006-10-04
DE102007033682A DE102007033682A1 (de) 2006-10-04 2007-07-19 Wischblatt zum Reinigen einer Scheibe
PCT/EP2007/059979 WO2008040643A1 (fr) 2006-10-04 2007-09-20 Balai d'essuie-glace pour nettoyer une vitre

Publications (1)

Publication Number Publication Date
EP2076416A1 true EP2076416A1 (fr) 2009-07-08

Family

ID=38698364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07820417A Withdrawn EP2076416A1 (fr) 2006-10-04 2007-09-20 Balai d'essuie-glace pour nettoyer une vitre

Country Status (5)

Country Link
EP (1) EP2076416A1 (fr)
JP (1) JP2010505685A (fr)
KR (1) KR20090054456A (fr)
DE (1) DE102007033682A1 (fr)
WO (1) WO2008040643A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016016737A (ja) * 2014-07-08 2016-02-01 アスモ株式会社 ワイパブレード用バッキング、ワイパブレード及びワイパ装置
DE102018125158A1 (de) 2018-10-11 2020-04-16 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug-Wischerblatt

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048873A (en) * 1956-09-24 1962-08-14 Gen Motors Corp Windshield wiper blade
DE3621233C2 (de) * 1986-06-25 1997-02-20 Bosch Gmbh Robert Wischblatt zum Reinigen von sphärisch gekrümmten Scheiben von Kraftfahrzeugen
JP2707817B2 (ja) * 1990-09-18 1998-02-04 日産自動車株式会社 ワイパブレード
DE4211326A1 (de) 1992-04-04 1993-10-07 Swf Auto Electric Gmbh Wischarm für Scheibenwischer von Kraftfahrzeugen
FR2699483B1 (fr) 1992-12-23 1995-02-10 Journee Paul Sa Essuie-glace de véhicule automobile comportant des moyens de réglage de l'orientation de la lame d'essuyage.
DE19854372A1 (de) 1998-11-25 2000-05-31 Bosch Gmbh Robert Wischblatt zum Reinigen einer Fahrzeugscheibe
DE19908282A1 (de) 1999-02-26 2000-09-07 Bosch Gmbh Robert Scheibenwischer mit einem Wischarm
JP2001301581A (ja) * 2000-04-19 2001-10-31 Mitsuba Corp ワイパブレード
JP2004042675A (ja) * 2002-05-20 2004-02-12 Jidosha Denki Kogyo Co Ltd ワイパブレード
KR100662629B1 (ko) * 2005-07-01 2007-01-02 박세헌 와이퍼 고무 블레이드

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008040643A1 *

Also Published As

Publication number Publication date
KR20090054456A (ko) 2009-05-29
WO2008040643A1 (fr) 2008-04-10
JP2010505685A (ja) 2010-02-25
DE102007033682A1 (de) 2008-04-10

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