DE3708719A1 - Wiper blade for windshield wiper systems - Google Patents

Wiper blade for windshield wiper systems

Info

Publication number
DE3708719A1
DE3708719A1 DE19873708719 DE3708719A DE3708719A1 DE 3708719 A1 DE3708719 A1 DE 3708719A1 DE 19873708719 DE19873708719 DE 19873708719 DE 3708719 A DE3708719 A DE 3708719A DE 3708719 A1 DE3708719 A1 DE 3708719A1
Authority
DE
Germany
Prior art keywords
wiper blade
channel
squeegee
wiper
boundary surfaces
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.)
Granted
Application number
DE19873708719
Other languages
German (de)
Other versions
DE3708719C2 (en
Inventor
Anton Epple
Hans Dipl Ing Trube
Martin Dipl Ing Pfeiffer
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19873708719 priority Critical patent/DE3708719A1/en
Priority to GB08804854A priority patent/GB2202134A/en
Priority to FR8803376A priority patent/FR2612473A1/en
Priority to IT8819795A priority patent/IT1216107B/en
Priority to JP63063783A priority patent/JPS63255159A/en
Publication of DE3708719A1 publication Critical patent/DE3708719A1/en
Application granted granted Critical
Publication of DE3708719C2 publication Critical patent/DE3708719C2/de
Granted 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
    • 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
    • B60S2001/3812Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3817Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
    • 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
    • B60S2001/3827Wiper blades characterised by the squeegee or blade rubber or wiping element
    • B60S2001/3836Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Laminated Bodies (AREA)

Description

Die Erfindung betrifft ein Wischerblatt für Scheibenwischer­ anlagen, mit einem Grundkörper aus relativ hartem Kunststoff, der einen über seine Längserstreckung durchgehenden, im Querschnitt etwa T-förmigen, offenen Kanal zur Aufnahme des Fußbereichs eines im Querschnitt gleichfalls etwa T-förmigen, weichen Wischgummis, der beidseits vom Grund­ balken des ′T′ abragende Vorsprünge aufweist, mit denen er sich während der hin- und hergehenden Schwenkbe­ wegungen des Wischerblattes an Anschlagflächen des Grund­ körpers abstützt.The invention relates to a wiper blade for wipers plants, with a base made of relatively hard plastic, the one over its length, in Cross-section approximately T-shaped, open channel for receiving of the foot area is also approximately in cross section T-shaped, soft squeegees that are on both sides of the bottom beams of the 'T' protruding projections with which he during the back and forth swiveling movements of the wiper blade on the contact surfaces of the base body supports.

Ein derartiges Wischerblatt ist bereits der DE-OS 23 44 876 als bekannt zu entnehmen. Die dort dargestellte Abstützung des relativ weichen Wischgummis reicht jedoch nicht aus, um unter allen Betriebsbedingungen eine Schlierenbildung auf der zu wischenden Scheibenfläche zu verhindern.Such a wiper blade is already DE-OS 23 44 876 as known. The support shown there the relatively soft squeegee is not enough, to create streaks under all operating conditions on the window surface to be wiped.

Der vorliegenden Erfindung lag deshalb die Aufgabe zugrunde, ein gattungsgemäßes Wischerblatt so weiterzubilden, daß auch unter ungünstigen Bedingungen eine einwandfreie Scheibenreinigung erfolgt. The present invention was therefore based on the object to develop a generic wiper blade so that perfect even under unfavorable conditions Window cleaning is done.  

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Begrenzungsflächen des Kanals zu seinem offenen Mündungsbereich hin bogenförmig zurücktreten und in abge­ rundete Fußteile auslaufen, an denen sich die Oberseiten der Vorsprünge je nach Schwenkrichtung abwechselnd form­ schlüssig abstützen.This object is achieved in that the boundary surfaces of the channel to its open Step back towards the mouth in an arc and into Rounded foot parts run out, on which the tops the projections alternate shape depending on the direction of rotation support conclusively.

Die Abstützung des Wischgummis kann in vorteilhafter Aus­ gestaltung der Erfindung dadurch weiter verbessert werden, daß der Grundbalken des ′T′ des Wischgummis mindestens auf der Hälfte seiner Höhe innerhalb des Kanals verläuft.The support of the squeegee can be advantageous design of the invention can be further improved by that the base bar of the 'T' of the squeegee at least half of its height runs inside the canal.

Eine noch weitergehende Verbesserung in dieser Richtung kann schließlich noch dadurch erzielt werden, daß die Form der Begrenzungsflächen des Kanals und die Form des Wischgummis so aufeinander abgestimmt sind, daß der Wischgummi in beiden Schwenklagen möglichst weitgehend formschlüssig an den Begrenzungsflächen und den Fußteilen anliegt.A further improvement in this direction can can finally be achieved in that the shape of the Boundary surfaces of the channel and the shape of the squeegee are coordinated so that the squeegee in two pivot positions as far as possible form-fitting lies against the boundary surfaces and the foot parts.

Der Gegenstand der Erfindung soll im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert werden.The subject matter of the invention is intended to be based on a shown in the drawing embodiment closer are explained.

In der Zeichnung zeigen:The drawing shows:

Fig. 1 einen Querschnitt durch ein Wischerblatt in seiner Mittellage, und Fig. 1 shows a cross section through a wiper blade in its central position, and

Fig. 2 eine Darstellung entsprechend der Fig. 1, jedoch bei in Richtung des Pfeiles ′P′ be­ wegtem Wischerblatt. Fig. 2 is a representation corresponding to FIG. 1, but in the direction of the arrow ' P ' be moved wiper blade.

Das in der Zeichnung dargestellte Wischerblatt weist einen Grundkörper 1 auf, der vorzugsweise aus einem Hart-PVC- Strangprofil besteht. Im Grundkörper 1 ist ein im Quer­ schnitt etwa T-förmiger, in der Zeichnung nach unten offener Kanal 2 vorgesehen, der der Aufnahme des Fußteils 3 eines im Querschnitt gleichfalls T-förmigen Wischgummis 4 dient, der vorzugsweise aus einem Elastomer-Strangprofil besteht. Um dem Wischerblatt eine gewünschte Vorspannung geben zu können, ist zwischen dem Fußteil 3 des Wischgummis 4 und dem Grund des Kanals 2 eine Stahlband-Einlage 5 vorge­ sehen.The wiper blade shown in the drawing has a base body 1 , which preferably consists of a hard PVC extruded profile. In the base body 1 is a cross-section approximately T-shaped, in the drawing downwardly open channel 2 is provided, which serves to receive the foot part 3 of a cross section likewise T-shaped squeegee 4 , which preferably consists of an elastomer extruded profile. In order to be able to give the wiper blade a desired pretension, a steel strip insert 5 is seen between the foot part 3 of the wiper blade 4 and the base of the channel 2 .

Der Grundkörper 1 des Wischerblattes ist in üblicher Weise durch Metallbügel 6 gehalten.The base body 1 of the wiper blade is held in the usual way by metal bracket 6 .

Die seitlichen Begrenzungsflächen 7 des Kanals 2 treten zu seinem offenen Mündungsbereich hin bogenförmig zurück und laufen in abgerundete Fußteile 8 aus. An die zurücktretenden Begrenzungsflächen 7 legt sich beim Verschwenken des Wischer­ blattes - wie in Fig. 2 der Zeichnung dargestellt - jeweils die zugeordnete Seite des Grundbalkens 9 des ′T′ des Wischgummis 4 an, während sich auf der Unterseite des Fußteils 8 die Oberseite eines jeweils zugeordneten, vom Grundbalken 9 des ′T′ abragenden Vorsprungs 10 abstützt.The lateral boundary surfaces 7 of the channel 2 arc back towards its open mouth area and run into rounded base parts 8 . At the receding boundary surfaces 7 , when pivoting the wiper blade - as shown in Fig. 2 of the drawing - each assigned side of the base bar 9 of the 'T' of the squeegee 4 , while on the underside of the foot part 8 the top of each assigned, supported by the base bar 9 of the 'T' protruding projection 10 .

Die vorstehend beschriebenen Bereiche von Grundkörper 1 und Wischgummi 4 sind dabei in ihrer Formgebung so ge­ staltet, daß beim Verschwenken eine möglichst weit­ gehende flächige Anlage der Teile aneinander erfolgt. The above-described areas of base body 1 and squeegee 4 are designed in their shape so that when pivoting as far as possible extensive contact of the parts takes place against each other.

In vorteilhafter Ausgestaltung der Erfindung kann der Grundkörper auf seiner Längserstreckung in der Zeich­ nung nicht dargestellte örtliche Aussparungen (Durch­ brüche) aufweisen, wodurch die Führung des Wischgummis weiter verbessert wird.In an advantageous embodiment of the invention, the Basic body on its longitudinal extent in the drawing local recesses not shown (through have breaks), thereby guiding the squeegee is further improved.

Claims (4)

1. Wischerblatt für Scheibenwischeranlagen, mit einem Grund­ körper aus relativ hartem Kunststoff, der einen über seine Längserstreckung durchgehenden, im Querschnitt etwa T-oörmigen, offenen Kanal zur Aufnahme des Fußbereichs eines im Querschnitt gleichfalls etwa T-förmigen, weichen Wischgummis, der beidseits vom Grundbalken des ′T′ abragende Vorsprünge aufweist, mit denen er sich während der hin- und hergehenden Schwenkbewegungen des Wischer­ blattes an Anschlagflächen des Grundkörpers abstützt, dadurch gekennzeichnet, daß die Begrenzungsflächen (7) des Kanals (2) zu seinem offenen Mündungsbereich hin bogenförmig zurücktreten und in abgerundete Fußteile (8) auslaufen, an denen sich die Oberseiten der Vorsprünge (10) je nach Schwenkrichtung ab­ wechselnd formschlüssig abstützen.1.Wiper blade for windshield wiper systems, with a body made of relatively hard plastic, which has a continuous, cross-sectionally approximately T-shaped, open channel for receiving the foot area of a likewise cross-sectionally approximately T-shaped, soft wiper rubber, which is on both sides of the Base bar of the 'T' protruding projections, with which it is supported during the reciprocating pivoting movements of the wiper blade on stop surfaces of the base body, characterized in that the boundary surfaces ( 7 ) of the channel ( 2 ) withdraw towards its open mouth area in an arc and end in rounded foot parts ( 8 ), on which the upper sides of the projections ( 10 ) are supported in a form-fitting manner depending on the pivoting direction. 2. Wischerblatt nach Anspruch 1, dadurch gekennzeichnet, daß der Grundbalken (9) des ′T′ des Wischgummis (4) mindestens auf der Hälfte seiner Höhe innerhalb des Kanals (2) verläuft. 2. Wiper blade according to claim 1, characterized in that the base bar ( 9 ) of the 'T' of the squeegee ( 4 ) extends at least at half its height within the channel ( 2 ). 3. Wischerblatt nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Form der Begrenzungsflächen (7) des Kanals (2) und die Form des Wischgummis (4) so aufeinander abge­ stimmt sind, daß der Wischgummi (4) in beiden Schwenk­ lagen möglichst weitgehend formschlüssig an den Be­ grenzungsflächen (7) und den Fußteilen (8) anliegt.3. Wiper blade according to claims 1 and 2, characterized in that the shape of the boundary surfaces ( 7 ) of the channel ( 2 ) and the shape of the squeegee ( 4 ) are so mutually coordinated that the squeegee ( 4 ) were in both swivel Bearing surfaces ( 7 ) and the foot parts ( 8 ) as far as possible form-fitting. 4. Wischerblatt nach einem oder mehreren der vorher­ gehenden Ansprüche, dadurch gekennzeichnet, daß der Grundkörper auf seiner Längserstreckung ört­ liche Aussparungen (Durchbrüche) im Bereich der Be­ grenzungsflächen des Kanals aufweist.4. Wiper blade after one or more of the previously claims, characterized, that the base body localizes on its longitudinal extent Liche cutouts (breakthroughs) in the area of the Be has boundary surfaces of the channel.
DE19873708719 1987-03-18 1987-03-18 Wiper blade for windshield wiper systems Granted DE3708719A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19873708719 DE3708719A1 (en) 1987-03-18 1987-03-18 Wiper blade for windshield wiper systems
GB08804854A GB2202134A (en) 1987-03-18 1988-03-01 Wiper blade
FR8803376A FR2612473A1 (en) 1987-03-18 1988-03-16 BROOM FOR WIPER INSTALLATION
IT8819795A IT1216107B (en) 1987-03-18 1988-03-16 WIPING RACKET FOR WINDSCREEN WIPER SYSTEMS.
JP63063783A JPS63255159A (en) 1987-03-18 1988-03-18 Wiper blade of wiper device for front glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873708719 DE3708719A1 (en) 1987-03-18 1987-03-18 Wiper blade for windshield wiper systems

Publications (2)

Publication Number Publication Date
DE3708719A1 true DE3708719A1 (en) 1988-10-06
DE3708719C2 DE3708719C2 (en) 1989-06-08

Family

ID=6323320

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873708719 Granted DE3708719A1 (en) 1987-03-18 1987-03-18 Wiper blade for windshield wiper systems

Country Status (5)

Country Link
JP (1) JPS63255159A (en)
DE (1) DE3708719A1 (en)
FR (1) FR2612473A1 (en)
GB (1) GB2202134A (en)
IT (1) IT1216107B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383247A (en) * 1991-04-12 1995-01-24 Citadel Inventments Limited Washing installation for windshields or motor vehicles, aircraft, locomotives or the like
WO1997021568A1 (en) * 1995-12-13 1997-06-19 Robert Bosch Gmbh Windscreen wiper blade assembly with a metal strip as the swivelling web
DE102007041895A1 (en) 2007-09-04 2008-09-25 Daimler Ag Wiper blade holding device for windscreen wiper system, has holder passing over longitudinal extension, C-shaped rail opened to disk, and wiping rubber supported in C-shaped rail and movable around its longitudinal axis

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3841133A1 (en) * 1988-12-07 1990-06-13 Guenther Petermann WIPER BLADE
US5208939A (en) * 1990-01-19 1993-05-11 Valeo Systemes D'essuyage Windshield wiper blade and a wiping strip with stiffening element therefor
DE4035336A1 (en) * 1990-11-07 1992-05-14 Daimler Benz Ag Wiper blade for vehicle windscreen - incorporates grooves to allow blade to bend in its holder
IT235894Y1 (en) * 1995-07-06 2000-07-18 Cooper Ind Inc WIPER BRUSH FOR VEHICLES
US5572764A (en) * 1996-04-18 1996-11-12 New-View Windshield Wiper, Inc. Articulated windshield wiper blade assembly
DE10129773B4 (en) * 2001-06-15 2005-11-17 Uphus, Reinhard, Dr. Holder for the wiper lip of a windshield wiper

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2336271A1 (en) * 1973-07-17 1975-02-06 Georg Maerz Vehicle windscreen wiper blade - fits into groove in flexible plastic bracket shaped to windscreen curve
DE8438086U1 (en) * 1983-12-30 1985-03-28 Champion Spark Plug Europe S.A., Binche, Peronnes WIPER BLADE FOR MOTOR VEHICLES

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB347198A (en) * 1929-02-02 1931-04-21 John William Anderson Windshield wipers or the like
DE556851C (en) * 1929-02-02 1932-08-15 John William Anderson Windshield cleaner
US1973366A (en) * 1930-11-26 1934-09-11 John W Anderson Windshield wiper
US3177514A (en) * 1963-11-22 1965-04-13 Ralph H Wise Windshield wiper
GB1415769A (en) * 1972-08-23 1975-11-26 Safety Vehicles Develop Wiper blade
GB1438568A (en) * 1972-09-09 1976-06-09 Fister Snc Di Bosso Giacomo C Windshield wiper blade
FR2258988B1 (en) * 1974-01-30 1977-09-30 Journee Paul
JPS56138048A (en) * 1980-03-28 1981-10-28 Toyoda Gosei Co Ltd Wiper blade
US4342129A (en) * 1980-08-21 1982-08-03 Thompson William E Wiping inserts for windshield wipers, squeegees and the like
FR2576569B1 (en) * 1985-01-29 1988-08-19 Champion Spark Plug Europ WIPER BLADE WITH NEW CONNECTION SYSTEM BETWEEN THE WIPER ELEMENT AND ITS SUPPORT

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2336271A1 (en) * 1973-07-17 1975-02-06 Georg Maerz Vehicle windscreen wiper blade - fits into groove in flexible plastic bracket shaped to windscreen curve
DE8438086U1 (en) * 1983-12-30 1985-03-28 Champion Spark Plug Europe S.A., Binche, Peronnes WIPER BLADE FOR MOTOR VEHICLES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383247A (en) * 1991-04-12 1995-01-24 Citadel Inventments Limited Washing installation for windshields or motor vehicles, aircraft, locomotives or the like
WO1997021568A1 (en) * 1995-12-13 1997-06-19 Robert Bosch Gmbh Windscreen wiper blade assembly with a metal strip as the swivelling web
DE102007041895A1 (en) 2007-09-04 2008-09-25 Daimler Ag Wiper blade holding device for windscreen wiper system, has holder passing over longitudinal extension, C-shaped rail opened to disk, and wiping rubber supported in C-shaped rail and movable around its longitudinal axis

Also Published As

Publication number Publication date
GB8804854D0 (en) 1988-03-30
GB2202134A (en) 1988-09-21
JPS63255159A (en) 1988-10-21
IT1216107B (en) 1990-02-22
FR2612473A1 (en) 1988-09-23
IT8819795A0 (en) 1988-03-16
DE3708719C2 (en) 1989-06-08

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D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee