DE2336271A1 - Vehicle windscreen wiper blade - fits into groove in flexible plastic bracket shaped to windscreen curve - Google Patents

Vehicle windscreen wiper blade - fits into groove in flexible plastic bracket shaped to windscreen curve

Info

Publication number
DE2336271A1
DE2336271A1 DE19732336271 DE2336271A DE2336271A1 DE 2336271 A1 DE2336271 A1 DE 2336271A1 DE 19732336271 DE19732336271 DE 19732336271 DE 2336271 A DE2336271 A DE 2336271A DE 2336271 A1 DE2336271 A1 DE 2336271A1
Authority
DE
Germany
Prior art keywords
wiper
bracket
wiper blade
windscreen
flexible plastic
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.)
Pending
Application number
DE19732336271
Other languages
German (de)
Inventor
Georg Maerz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19732336271 priority Critical patent/DE2336271A1/en
Publication of DE2336271A1 publication Critical patent/DE2336271A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/04Wipers or the like, e.g. scrapers
    • B60S1/32Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38Wiper blades
    • B60S1/3806Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/04Wipers or the like, e.g. scrapers
    • B60S1/32Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38Wiper blades
    • B60S1/3848Flat-type wiper blade, i.e. without harness
    • B60S1/3874Flat-type wiper blade, i.e. without harness with a reinforcing vertebra
    • B60S1/3882C-shape section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/04Wipers or the like, e.g. scrapers
    • B60S1/32Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38Wiper blades
    • B60S1/3848Flat-type wiper blade, i.e. without harness
    • B60S1/3872Flat-type wiper blade, i.e. without harness without connector, e.g. connection to wiper arm via squeegee or vertebra

Abstract

Windscreen wiper bracket to fit onto the wiper arm and carry the wiper blade, is of one piece flexible plastic construction preshaped to correspond with the windscreen curvature. The bracket centre is reinforced by a step tapering off to the ends so that the wiper arm pressure in the centre will ensure that the blade always contacts the screen. In an alternative design the blade and bracket are manufactured of one piece flexible plastic, to give lower production costs and quieter operation.

Description

806 D a c Ii a u
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806 D ac Ii au
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Scheibenwischer für Kraftfahrzeuge, Windscreen wipers for motor vehicles,

Die Erfindung betrifft einen Scheibenwischer für Windschutzscheiben Ton Kraftfahrzeugen«The invention relates to a windshield wiper for windshields Sound motor vehicles «

Wegen der unterschiedlichen Krümmung der Windschutzscheiben von Kraftfahrzeugen sind die Scheibenwischer im allgemeinen so gestaltet, daß ein durch eine Metallschiene verstärktes Wischblatt aus Gummi von einem Bügelsystem getragen wird, das aus einem Hauptbügel und daran angelenkten wagebalkenähnliehen Hilfsbügeln besteht. Ein Nachteil der Bügelsysteme besteht darin, daß sie im Winter durch Schnee und Eis ihre Wirkung leicht verlieren. Ein weiterer Nachteil sind Klappergeräusche, die durch die Metallteile bei verschiedenen Konstruktionen entstehen können.Because of the different curvature of the windshields of motor vehicles, the windshield wipers are generally designed so that a wiper blade made of rubber reinforced by a metal rail is carried by a bracket system consisting of a main bracket and there is a balance beam-like auxiliary bracket hinged to it. A disadvantage of the ironing systems is that they get through in winter Snow and ice easily lose their effect. Another disadvantage are rattling noises caused by the metal parts at various Constructions can arise.

Man hat deshalb vorgeschlagen, die Bügel durch elastische Kunststoff -Verbindungsglieder miteinander zu verbinden, jedoch ist das Herstellverfahren relativ umständlich.It has therefore been proposed that the bracket be made of elastic plastic -Connecting links to one another, but the manufacturing process is relatively cumbersome.

Es ist ferner eine Konstruktion ohne Hilfsbügel bekannt, bei der ein gleichmäßiges Anliegen des Wischblatts an die unterschiedlichen Krümmungen der Windschutzscheibe dadurch erzielt wird, daß das Wischblatt in gekrümmter Form gefertigt, durch einen vorgebogenen Metallstreifen verstärkt, und zwischen den Enden eines Metallbügels gespannt wird.There is also a construction without an auxiliary bracket is known in which a uniform fit of the wiper blade to the different curvatures of the windshield is achieved in that the Wiper blade made in a curved shape, reinforced by a pre-bent metal strip, and between the ends of a metal bracket is tensioned.

Der Erfindung liegt die Aufgabe zugrunde, die bekannten Konstruktionen zu vereinfachen und den Scheibenwischer unter Vermeidung einer Bügelkonstruktion mit angelenkten Hilfsbügeln so zu gestalten, daß er auch bei gekrümmten Scheiben einwandfrei arbeitet, eine niedrige Bauart aufweist und möglichst geräuschfrei arbeitet.The invention is based on the object of the known constructions to simplify and to design the windshield wiper while avoiding a bracket construction with hinged auxiliary brackets, that it works flawlessly even with curved panes, has a low construction and works as quietly as possible.

409886/0623409886/0623

Diese Aufgabe wird dadurch gelöst, daß das Wischblatt fest verbunden ist mit einem aus elastischem Kunststoff bestehenden Wischerbügel, der entsprechend der Krümmung der Windschutzscheibe vorgeformt ist und in der Biegesteifigkeit senkrecht zur Wischflache nach den Enden zu abnimmt.This object is achieved in that the wiper blade is firmly connected is with a wiper bracket made of elastic plastic, which corresponds to the curvature of the windshield is preformed and in the flexural rigidity perpendicular to the wiping surface decreasing towards the ends.

In einer Gestaltung der Erfindung ist das Wischblatt in einer Hut des Wischerbügels befestigt.In one embodiment of the invention, the wiper blade is fastened in a hat of the wiper bracket.

In einer anderen Gestaltung ist Wischerbügel und Wischblatt aus einem Stück aus elastischem Kunststoff hergestellt.In another design, the wiper bracket and the wiper blade are made from one piece of elastic plastic.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt und werden im folgenden näher beschrieben. Es zeigenExemplary embodiments of the invention are shown in the drawing and are described in more detail below. Show it

Pig.1 einen Wischerbügel in Seitenansicht; Pig.2 einen Querschnitt durch einen Wischerbügel; Pig.3 einen Querschnitt durch einen Wischerbügel mit einerPig.1 a wiper bracket in side view; Pig.2 a cross section through a wiper bracket; Pig.3 shows a cross section through a wiper bracket with a

anderen Querschnittsgestaltung; Pig.4 einen Querschnitt durch einen Wischerbügel, bei dem Wischerbügel und Wischblatt aus einem Stück bestehen.other cross-sectional design; Pig.4 shows a cross section through a wiper bracket, in which The wiper bracket and wiper blade consist of one piece.

In Pig.1 ist der Wischerbügel 1 im mittleren ieil durch einen Steg 2 verstärkt. Die Biegesteifigkeit nimmt dadurch von der Mitte zu den Enden des Wischerbügels ab. Der Wischerbügel hat ein Ansatzstück 3 für eine Befestigung am nicht gezeichneten Wischerarm. Der Wischerbügel ist entsprechend der Krümmung der Windschutzscheibe vorgeformt, und zwar sind die Enden des Wischerbügels in unbelastetem Zustand zweckmäßig etwas stärker als die Scheibe gekrümmt, da der Druck des Wischerarms in der Mitte des Wischerbügels ansetzt. Durch die Vorformung und die geringe Biegesteifigkeit des Wischerbügels an den Enden wird bewirkt, daß das Wischblatt während des Wischvorgangs immer an der Scheibe anliegt.In Pig.1, the wiper bracket 1 is in the middle by a Bridge 2 reinforced. The bending stiffness thereby decreases from the center to the ends of the wiper bracket. The wiper bracket has an extension piece 3 for attachment to the wiper arm, not shown. The wiper bracket is corresponding to the curvature of the Preformed windshield, namely the ends of the wiper bracket in the unloaded state are appropriately somewhat stronger than that Windshield curved because the pressure of the wiper arm is in the center of the wiper bracket. Due to the preforming and the low The bending stiffness of the wiper bracket at the ends ensures that the wiper blade is always on the windshield during the wiping process is present.

Die Herabsetzung der Biegesteifigkeit zu einem oder beiden Enden des Wischerbügels hin entsprechend der Krümmung der Windschutzscheibe kann auch durch eine Verkleinerung der QuerschnittsflächeThe reduction in bending stiffness towards one or both ends of the wiper arm according to the curvature of the windshield can also be achieved by reducing the cross-sectional area

AO9886/0623AO9886 / 0623

des Wischerbügels oder durch eine beliebige an sich bekannte Querschnittsform bewirkt werden.of the wiper bracket or by any known cross-sectional shape.

In Pig.2 ist 5 ein Wischerbügel, der in einer lint ein Wischblatt 6 aus Gummi trägt. Die Anordnung des Wischblatts in einer Mut ergibt eine niedrige Bauhöhe des Wischers. Das Wischblatt wird in der Nut abgestützt, so daß eine weiche Gummiqualitat Terwendet werden kann.In Pig.2, 5 is a wiper bracket, which is a wiper blade in a lint 6 made of rubber. The arrangement of the wiper blade in a courage results in a low overall height of the wiper. The wiper blade will supported in the groove, so that a soft rubber quality Terwendet can be.

Fig. 3 zeigt einen Wischerbügel 7 in einer aerodynamisch günstigen Querschnittsform. Das Wischblatt 8 ist in einer IJut des Wiscnerbügels 7 angeordnet. Schräge S'lächen 9 verhindern, daß das Wischblatt 8 sich über ein bestimmtes Maß hinaus seitwärts abbiegen kann.Fig. 3 shows a wiper bracket 7 in an aerodynamically favorable Cross-sectional shape. The wiper blade 8 is in an IJut of the Wiscner bracket 7 arranged. Inclined surfaces 9 prevent the wiper blade 8 from bending sideways beyond a certain amount can.

In ilfig.4 bestehen Wischerbügel und Wischblatt aus einem Stück. Dei Wischerbügel 10 läuft hier in eine dünne Wischleiste 11 als Wischblatt aus. Diese einfache Ji'orm kann Torteilhaft da verwendet werden, wo die Windschutzscheibe keine großen }{rümmungsunterschiede aufweist.In ilfig.4 the wiper bracket and wiper blade consist of one piece. The wiper bracket 10 runs here in a thin wiper strip 11 as Wiper blade off. This simple Ji'orm can be used in part be where the windshield does not have any great differences in curvature having.

409886/0623409886/0623

Claims (3)

PatentansOrüclie:Patent application: M)) Scheibenwischer für Windschutzscheiben von Kraftfahrzeugen, dadurch gekennzeichnet, daß das Viischblatt fest verbunden ist mit einem aus elastischem Kunststoff bestehenden Wischerbügel, der entsprechend der Krümmung der Windschutzscheibe vorgeformt .ist und in der Biegesteifigkeit senkrecht zur Wisclifläche nach den jänden zu abnimmt.M)) Windshield wipers for windshields of motor vehicles, characterized in that the wiper blade is firmly connected to a wiper bracket made of elastic plastic, which is preformed according to the curvature of the windshield and decreases in bending stiffness perpendicular to the Wisclifläche towards the jände. 2) Scheibenwischer nach Anspruch 1, dadurch gekennzeichnet, daß das Wischblatt in einer Nut des Wischerbügels befestigt ist.2) Windshield wiper according to claim 1, characterized in that the wiper blade is fastened in a groove of the wiper bracket. 3) Scheibenwischer nach Anspruch 1, dadurcn gekennzeichnet, daß Wischerbügel und Wischblatt aus einem Stück aus elastischem Kunststoff hergestellt sind.3) Windshield wiper according to claim 1, characterized in that the wiper bracket and wiper blade are made from one piece of elastic Plastic are made. ■<S "■ <S " /i/ i titi 409886/0623409886/0623
DE19732336271 1973-07-17 1973-07-17 Vehicle windscreen wiper blade - fits into groove in flexible plastic bracket shaped to windscreen curve Pending DE2336271A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732336271 DE2336271A1 (en) 1973-07-17 1973-07-17 Vehicle windscreen wiper blade - fits into groove in flexible plastic bracket shaped to windscreen curve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732336271 DE2336271A1 (en) 1973-07-17 1973-07-17 Vehicle windscreen wiper blade - fits into groove in flexible plastic bracket shaped to windscreen curve

Publications (1)

Publication Number Publication Date
DE2336271A1 true DE2336271A1 (en) 1975-02-06

Family

ID=5887161

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732336271 Pending DE2336271A1 (en) 1973-07-17 1973-07-17 Vehicle windscreen wiper blade - fits into groove in flexible plastic bracket shaped to windscreen curve

Country Status (1)

Country Link
DE (1) DE2336271A1 (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4649592A (en) * 1985-01-29 1987-03-17 Champion Spark Plug Europe, S.A. Wiper blade
DE3708719A1 (en) * 1987-03-18 1988-10-06 Daimler Benz Ag Wiper blade for windshield wiper systems
US5325564A (en) * 1991-08-16 1994-07-05 Swanepoel Adriaan R Windscreen wiper blade with curved backing member
US5485650A (en) * 1992-10-23 1996-01-23 Adriaan Retief Swanepoel Windscreen wiper with elongated, curved backbone
WO1999010211A1 (en) * 1997-08-21 1999-03-04 Robert Bosch Gmbh Glass wiper blade for motor vehicles
US6550096B1 (en) 2000-07-06 2003-04-22 Trico Products Corporation Beam blade wiper assembly having improved coupler
US6651292B2 (en) 2001-02-16 2003-11-25 Trico Products Corporation Cantilevered beam-blade windshield-wiper assembly
US6675433B1 (en) 2000-07-06 2004-01-13 Trico Products Corporation Beam blade wiper assembly having improved wind lift characteristics
US6799348B1 (en) 1998-10-12 2004-10-05 Trico Products Corporation Windscreen wiper
US6836925B1 (en) 1998-10-09 2005-01-04 Trico Products Corporation Windscreen wiper
US6951043B1 (en) 1998-10-12 2005-10-04 Trico Products Corporation Windscreen wiper
WO2007011996A1 (en) * 2005-07-19 2007-01-25 Valeo Electrical Systems, Inc. Wiper blade assembly and method of forming the same
US7484264B2 (en) 2001-04-26 2009-02-03 Robert Bosch Llc Automobile windshield wiper blade
DE102007039563A1 (en) 2007-08-22 2009-02-26 Robert Bosch Gmbh wiper blade
US8261403B2 (en) 2010-05-13 2012-09-11 Trico Products Corporation Beam blade windshield wiper assembly
US8397341B2 (en) 2010-05-13 2013-03-19 Trico Products Corporation Beam blade windshield wiper assembly
US8468641B2 (en) 2005-04-04 2013-06-25 Trico Products Corporation Wiper coupler and wiper assembly incorporating same
US8533899B2 (en) 2009-08-27 2013-09-17 Trico Products Corporation Windshield wiper assembly
USD702618S1 (en) 2012-11-15 2014-04-15 Trico Products Corporation Wiper blade coupler
US8713747B2 (en) 2005-04-04 2014-05-06 Trico Products Corporation Wiper coupler and wiper assembly incorporating same
US9221429B2 (en) 2012-11-15 2015-12-29 Trico Products Corporation Wiper coupler assembly and wiper assembly incorporating same
US9227599B2 (en) 2013-05-02 2016-01-05 Trico Products Corporation Mounting assembly for wiper blade and wiper arm
US9260084B2 (en) 2013-01-03 2016-02-16 Trico Products Corporation Wiper coupler adapter and wiper assembly incorporating same
US9434355B2 (en) 2014-04-01 2016-09-06 Trico Products Corporation Wiper adapter and wiper assembly incorporating the same
US9493140B2 (en) 2013-12-02 2016-11-15 Trico Products Corporation Coupler assembly for wiper assembly
US9533655B2 (en) 2012-12-04 2017-01-03 Trico Products Corporation Wiper coupler adapter and wiper assembly incorporating same
US9539987B2 (en) 2014-04-01 2017-01-10 Trico Products Corporation Wiper adapter and wiper assembly incorporating the same
US9663071B2 (en) 2014-05-29 2017-05-30 Trico Products Corporation Wiper adapter and wiper assembly incorporating same

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4649592A (en) * 1985-01-29 1987-03-17 Champion Spark Plug Europe, S.A. Wiper blade
DE3708719A1 (en) * 1987-03-18 1988-10-06 Daimler Benz Ag Wiper blade for windshield wiper systems
US5325564A (en) * 1991-08-16 1994-07-05 Swanepoel Adriaan R Windscreen wiper blade with curved backing member
US5485650A (en) * 1992-10-23 1996-01-23 Adriaan Retief Swanepoel Windscreen wiper with elongated, curved backbone
WO1999010211A1 (en) * 1997-08-21 1999-03-04 Robert Bosch Gmbh Glass wiper blade for motor vehicles
US6292974B1 (en) * 1997-08-21 2001-09-25 Robert Bosch Gmbh Glass wiper blade for motor vehicles
US6836925B1 (en) 1998-10-09 2005-01-04 Trico Products Corporation Windscreen wiper
US6799348B1 (en) 1998-10-12 2004-10-05 Trico Products Corporation Windscreen wiper
US6951043B1 (en) 1998-10-12 2005-10-04 Trico Products Corporation Windscreen wiper
US6675433B1 (en) 2000-07-06 2004-01-13 Trico Products Corporation Beam blade wiper assembly having improved wind lift characteristics
US6550096B1 (en) 2000-07-06 2003-04-22 Trico Products Corporation Beam blade wiper assembly having improved coupler
US6651292B2 (en) 2001-02-16 2003-11-25 Trico Products Corporation Cantilevered beam-blade windshield-wiper assembly
US8099823B2 (en) 2001-04-26 2012-01-24 Robert Bosch Gmbh Automobile windshield wiper blade
US7484264B2 (en) 2001-04-26 2009-02-03 Robert Bosch Llc Automobile windshield wiper blade
US8544136B2 (en) 2001-04-26 2013-10-01 Robert Bosch Gmbh Automobile windshield wiper blade
US8713747B2 (en) 2005-04-04 2014-05-06 Trico Products Corporation Wiper coupler and wiper assembly incorporating same
US8468641B2 (en) 2005-04-04 2013-06-25 Trico Products Corporation Wiper coupler and wiper assembly incorporating same
WO2007011996A1 (en) * 2005-07-19 2007-01-25 Valeo Electrical Systems, Inc. Wiper blade assembly and method of forming the same
US8245350B2 (en) 2007-08-22 2012-08-21 Robert Bosch Gmbh Wiper blade
CN101784425B (en) * 2007-08-22 2013-02-06 罗伯特.博世有限公司 Wiper blade and method for manufacturing the wiper blade
DE102007039563A1 (en) 2007-08-22 2009-02-26 Robert Bosch Gmbh wiper blade
WO2009024410A1 (en) * 2007-08-22 2009-02-26 Robert Bosch Gmbh Wiper blade
US8819889B2 (en) 2009-08-27 2014-09-02 Trico Products Corporation Windshield wiper assembly
US8533899B2 (en) 2009-08-27 2013-09-17 Trico Products Corporation Windshield wiper assembly
US8261403B2 (en) 2010-05-13 2012-09-11 Trico Products Corporation Beam blade windshield wiper assembly
US8397341B2 (en) 2010-05-13 2013-03-19 Trico Products Corporation Beam blade windshield wiper assembly
US8490239B2 (en) 2010-05-13 2013-07-23 Trico Products Corporation Beam blade windshield wiper assembly
US8555456B2 (en) 2010-05-13 2013-10-15 Trico Products Corporation Beam blade windshield wiper assembly
USD702618S1 (en) 2012-11-15 2014-04-15 Trico Products Corporation Wiper blade coupler
US9221429B2 (en) 2012-11-15 2015-12-29 Trico Products Corporation Wiper coupler assembly and wiper assembly incorporating same
US9533655B2 (en) 2012-12-04 2017-01-03 Trico Products Corporation Wiper coupler adapter and wiper assembly incorporating same
US9260084B2 (en) 2013-01-03 2016-02-16 Trico Products Corporation Wiper coupler adapter and wiper assembly incorporating same
US9227599B2 (en) 2013-05-02 2016-01-05 Trico Products Corporation Mounting assembly for wiper blade and wiper arm
US9493140B2 (en) 2013-12-02 2016-11-15 Trico Products Corporation Coupler assembly for wiper assembly
US9434355B2 (en) 2014-04-01 2016-09-06 Trico Products Corporation Wiper adapter and wiper assembly incorporating the same
US9539987B2 (en) 2014-04-01 2017-01-10 Trico Products Corporation Wiper adapter and wiper assembly incorporating the same
US9663071B2 (en) 2014-05-29 2017-05-30 Trico Products Corporation Wiper adapter and wiper assembly incorporating same

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