WO1995001896A1 - Windscreen wiper for motor vehicles - Google Patents

Windscreen wiper for motor vehicles Download PDF

Info

Publication number
WO1995001896A1
WO1995001896A1 PCT/DE1994/000672 DE9400672W WO9501896A1 WO 1995001896 A1 WO1995001896 A1 WO 1995001896A1 DE 9400672 W DE9400672 W DE 9400672W WO 9501896 A1 WO9501896 A1 WO 9501896A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiper blade
plastic part
wiper
blade
carrier
Prior art date
Application number
PCT/DE1994/000672
Other languages
German (de)
French (fr)
Inventor
Jan Dietrich
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 WO1995001896A1 publication Critical patent/WO1995001896A1/en

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
    • B60S1/0491—Additional elements being fixed on wipers or parts of wipers not otherwise provided for, e.g. covers, antennae or lights
    • 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
    • B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
    • B60S2001/3829—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by the material of the squeegee or coating thereof
    • 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
    • B60S2001/3844—Wiper blades equipped with means to indicate wear or usage of blade

Definitions

  • the invention is based on a wiper blade according to the preamble of the main claim.
  • the condition of the wiper strip responsible for the wiping quality can only be inferred from a permanent, critical examination of the wiper field.
  • Critical situations can therefore arise, particularly when driving at night with glare from oncoming traffic, the actual causes of which are due to the poor quality of the wiping work of the wiper blade.
  • the wiper blade according to the invention with the characterizing features of the main claim has the advantage that the age of the wiper strip is clearly signaled to the driver by the color change of the plastic part, so that the driver has a reliable point of reference for changing the wiper blade.
  • Advantageous further developments and improvements of the wiper blade specified in the main claim are possible through the measures listed in the subclaims.
  • FIG. 1 shows a wiper blade in view, with a plastic part serving as an indicator for the service life of the wiper blade
  • FIG. 2 shows the plastic part according to FIG. 1 in an enlarged side view
  • FIG. 3 shows a graph showing the strength of the color change of the Plastic part illustrated over a certain period of time.
  • a wiper blade 10 shown in FIG. 1 has a support bracket frame 14 which serves as a carrier for a wiper strip 12.
  • the wiper strip 12 is made of rubber or a rubber-like material.
  • this material suffers from the environmental influences acting on it. These are composed, for example, of heat, cold, dirt on the street, oil, UV radiation, etc. It has been shown over many years that such a wiper strip ages to such an extent over the course of about six months that it does not function properly Wiping result can be achieved. The consequences of this are streaks and water droplets remaining on the window, which lead to stray light and thus dazzling the driver when driving at night with oncoming traffic.
  • a plastic part 16 is arranged on the wiper blade, which is made of a material whose color changes so strongly over the course of about six months under the influence of at least one of the environmental influences mentioned that the driver notices this and carries out the necessary wiper blade change.
  • the plastic part 16 is locked on a bracket of the support bracket frame 14.
  • the plastic part 16 has, on its underside, deflectable latching hooks 18 (FIG. 2) which, when springing open, reach through openings 20 in a supporting frame part.
  • FIG. 2 deflectable latching hooks 18
  • glue the plastic part to the bracket frame 14 of the wiper blade 10.
  • the plastic part can, as shown in the embodiment, be designed as a leaflet.
  • the plastic part 16 is a film and to fasten it to the wiper blade 10. So that the plastic part 16 does not undergo a color change during storage of the wiper blade, this can be covered, for example, with a removable cover which is removed when the wiper blade is used on the motor vehicle.
  • FIG. 3 shows in a coordinate system how the color change plotted on the ordinate takes place with respect to a time period plotted on the abscissa.
  • the color change takes place according to a first embodiment, from the day of use 'E' at a point in time * Z 'of six months after E (cf. the dash-dotted line 3)
  • Z 'of six months after E cf. the dash-dotted line 3
  • a particularly favorable course of the color change is shown with the dashed line 40 shown in Figure 3.
  • There the color change is slight during the first six months after E.
  • the color 'Y' which is then achieved is ideally retained and reminds the driver of the due wiper blade change without interruption.

Abstract

Proposed is a wiper (10) for motor-vehicle windscreens. The wipe r (10) has a mounting (14) for a rubber blade (12) which ages during the period of utilization of the wiper (10) as a result of environmental influences so that the windscreen-wiping qualities of the blade deteriorate with time. In order to give the vehicle driver a visual indication of the degree of ageing of the blade, a plastic element (16) is mounted on the wiper (10), preferably on the blade mounting (14), the colour of the plastic element changing visually under the influence of the environment, in particular under the influence of UV radiation, over a period of about six months.

Description

Wischblatt zum Reiniσen von Scheiben an KraftfahrzeugenWiper blade for cleaning windows on motor vehicles
Stand der TechnikState of the art
Die Erfindung geht aus von einem Wischblatt nach der Gattung des Hauptanspruchs. Bei den bekannten Wischblättern ist nur durch dauernde, kritische Betrachtung des Wischfeldes auf den Zustand der für die Wischgualitat verantwortlichen Wischleiste zu schließen. Da sich diese jedoch vom Tag ihres Einsatzes am Kraftfahrzeug an alleine durch die Einwirkung von Umwelteinflüssen auch ohne die mechanische Beanspruchung während des Wischbetriebes täglich ver¬ schlechtert, wird dies in vielen Fällen vom Fahrer des Kraftfahr¬ zeuges nicht bemerkt. Es können sich deshalb, insbesondere bei Nachtfahrten mit Blendung durch Gegenverkehr kritische Situationen ergeben, deren eigentliche Ursachen in der mangelnden Qualität der Wischarbeit des Wischblattes begründet ist.The invention is based on a wiper blade according to the preamble of the main claim. In the known wiper blades, the condition of the wiper strip responsible for the wiping quality can only be inferred from a permanent, critical examination of the wiper field. However, since this deteriorates daily from the day of its use on the motor vehicle solely by the action of environmental influences even without the mechanical stress during wiping operation, the driver of the motor vehicle does not notice this in many cases. Critical situations can therefore arise, particularly when driving at night with glare from oncoming traffic, the actual causes of which are due to the poor quality of the wiping work of the wiper blade.
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Wischblatt mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß durch die Farb- änderung des Kunststoffteils dem Fahrer klar das Alter der Wisch¬ leiste signalisiert wird, so daß dieser einen sicheren Anhaltspunkt zum Wechseln des Wischblattes hat. Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vor¬ teilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Wischblatts möglich.The wiper blade according to the invention with the characterizing features of the main claim has the advantage that the age of the wiper strip is clearly signaled to the driver by the color change of the plastic part, so that the driver has a reliable point of reference for changing the wiper blade. Advantageous further developments and improvements of the wiper blade specified in the main claim are possible through the measures listed in the subclaims.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung darge¬ stellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 ein Wischblatt in Ansicht, mit einem als Indikator für die Einsatzdauer des Wischblatts dienenden Kunststoffteil, Figur 2 das Kunststoffteil gemäß Figur 1 in Seitenansicht, vergrößert dar¬ gestellt, und Figur 3 ein Schaubild, welches die Stärke der Farb- änderung des Kunststoffteils über einen bestimmten Zeitraum veran¬ schaulicht.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. FIG. 1 shows a wiper blade in view, with a plastic part serving as an indicator for the service life of the wiper blade, FIG. 2 shows the plastic part according to FIG. 1 in an enlarged side view, and FIG. 3 shows a graph showing the strength of the color change of the Plastic part illustrated over a certain period of time.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Ein in Figur 1 dargestelltes Wischblatt 10 weist ein als Träger für eine Wischleiste 12 dienendes Tragbügelgestell 14 auf. Die Wisch¬ leiste 12 ist aus Gummi oder einem gummiähnlichen Material her¬ gestellt. Dieses Material leidet jedoch unter den auf dieses ein¬ wirkenden Umwelteinflüssen. Diese setzen sich beispielsweise zusam¬ men aus Wärme, Kälte, Straßenschmutz, Öl, UV-Strahlung usw. Es hat sich über viele Jahre gezeigt, daß eine solche Wischleiste im Laufe von etwa sechs Monaten so stark altert, daß mit dieser kein ord¬ nungsgemäßes Wischergebnis zu erreichen ist. Die Folgen davon sind auf der Scheibe zurückbleibende Schlieren und Wassertröpfchen, wel¬ che bei Nachtfahrten mit Gegenverkehr zu Streulicht und damit zur Blendung des Fahrers führen. Da diese Alterung alleine durch visuel¬ len Augenschein kaum wahrnehmbar ist, liegt es an dem Fahrer des Kraftfahrzeuges, das Wischergebnis kritisch zu betrachten und aus dem sich daraus ergebenden Ergebnis die richtigen Schlüsse zu ziehen. Um den Fahrer bei der Lösung dieses Problems zu unterstützen ist an dem Wischblatt ein Kunststoffteil 16 angeordnet, das aus einem Ma¬ terial hergestellt ist, dessen Farbe sich unter Einwirkung von zu¬ mindest einem der erwähnten Umwelteinflüsse im Laufe von etwa sechs Monaten so stark verändert, daß dies dem Fahrer auffällt und dieser notwendigen Wischblattwechsel vornimmt. Beim Ausführungsbeispiel ist das Kunststoffteil 16 an einem Bügel des Tragbügelgestells 14 ver¬ rastet. Dazu weist das Kunststoffteil 16 an seiner Unterseite aus¬ lenkbare Rasthaken 18 auf (Fig. 2), die unter Auffederung durch Durchbrüche 20 in einem Tragbugelgestellteil hindurchgreifen. Es ist jedoch auch denkbar, das Kunststoffteil an dem Tragbügelgestell 14 des Wischblatts 10 anzukleben. Das Kunststoffteil kann, wie beim Ausführungsbeispiel dargestellt, als Blättchen ausgebildet sein.A wiper blade 10 shown in FIG. 1 has a support bracket frame 14 which serves as a carrier for a wiper strip 12. The wiper strip 12 is made of rubber or a rubber-like material. However, this material suffers from the environmental influences acting on it. These are composed, for example, of heat, cold, dirt on the street, oil, UV radiation, etc. It has been shown over many years that such a wiper strip ages to such an extent over the course of about six months that it does not function properly Wiping result can be achieved. The consequences of this are streaks and water droplets remaining on the window, which lead to stray light and thus dazzling the driver when driving at night with oncoming traffic. Since this aging can hardly be perceived by visual inspection alone, it is up to the driver of the motor vehicle to take a critical look at the wiping result and to draw the correct conclusions from the resultant result. In order to assist the driver in solving this problem, a plastic part 16 is arranged on the wiper blade, which is made of a material whose color changes so strongly over the course of about six months under the influence of at least one of the environmental influences mentioned that the driver notices this and carries out the necessary wiper blade change. In the exemplary embodiment, the plastic part 16 is locked on a bracket of the support bracket frame 14. For this purpose, the plastic part 16 has, on its underside, deflectable latching hooks 18 (FIG. 2) which, when springing open, reach through openings 20 in a supporting frame part. However, it is also conceivable to glue the plastic part to the bracket frame 14 of the wiper blade 10. The plastic part can, as shown in the embodiment, be designed as a leaflet.
Es ist jedoch genausogut denkbar, das Kunststoffteil als Folie aus¬ zubilden und an dem Wischblatt 10 zu befestigen. Damit das Kunst¬ stoffteil 16 nicht schon während der Lagerhaltung des Wischblatts eine Farbänderung erfährt, kann dieses beispielsweise mit einer ab¬ nehmbaren Abdeckung überdeckt sein, die dann entfernt wird, wenn das Wischblatt am Kraftfahrzeug eingesetzt wird.However, it is equally conceivable to design the plastic part as a film and to fasten it to the wiper blade 10. So that the plastic part 16 does not undergo a color change during storage of the wiper blade, this can be covered, for example, with a removable cover which is removed when the wiper blade is used on the motor vehicle.
In Figur 3 ist in einem Koordinatensystem dargestellt, wie sich die auf der Ordinate aufgetragene Farbänderung im Hinblick auf einen auf der Abszisse aufgetragenen Zeitraum vollzieht. Ausgehend von einer Ausgangsfarbe 'X' zu einer Endfarbe Υ" vollzieht sich die Farb¬ änderung gemäß einem ersten Ausführungsbeispiel, vom Tag des Ein¬ satzes 'E' zu einem Zeitpunkt *Z' von sechs Monaten nach E stetig (vgl. die strichpunktierte Linie 30 in Figur 3). Ein besonders gün¬ stiger Verlauf der Farbänderung ist mit der in Figur 3 gestrichelt aufgetragenen Linie 40 dargestellt. Dort ist die Farbänderung wäh¬ rend der ersten sechs Monate nach E gering. Danach allerdings er¬ folgt eine rasche Änderung der Farbe des Kunststoffteils 16, die so stark ist, daß der Fahrer diese praktisch nicht übersehen kann. Diese dann erreichte Farbe 'Y' bleibt im Idealfall erhalten und erinnert den Fahrer ununterbrochen an den fälligen Wischblatt¬ wechsel. FIG. 3 shows in a coordinate system how the color change plotted on the ordinate takes place with respect to a time period plotted on the abscissa. Starting from an initial color 'X' to an end color Υ ", the color change takes place according to a first embodiment, from the day of use 'E' at a point in time * Z 'of six months after E (cf. the dash-dotted line 3) A particularly favorable course of the color change is shown with the dashed line 40 shown in Figure 3. There the color change is slight during the first six months after E. However, after that there is a rapid change in the color change Color of the plastic part 16, which is so strong that the driver can practically not miss it, and the color 'Y' which is then achieved is ideally retained and reminds the driver of the due wiper blade change without interruption.

Claims

Ansprüche Expectations
1. Wischblatt zum Reinigen von Scheiben an Kraftfahrzeugen, mit einem Träger für eine Wischgummileiste, dadurch gekennzeichnet, daß vorzugsweise an dem Träger (14) der Wischgummileiste (12) ein Kunst¬ stoffteil (16) angeordnet ist, dessen Farbe sich unter Einwirkung von Umwelteinflüssen im Laufe von etwa sechs Monaten sichtbar ver¬ ändert.1. Wiper blade for cleaning windows on motor vehicles, with a carrier for a squeegee strip, characterized in that preferably a plastic part (16) is arranged on the carrier (14) of the squeegee strip (12), the color of which changes under the influence of environmental influences changed visibly in the course of about six months.
2. Wischblatt nach Anspruch 1, dadurch gekennzeichnet, daß das Kunststoffteil an dem Träger' (14) verrastet ist.2. Wiper blade according to claim 1, characterized in that the plastic part on the carrier ' (14) is locked.
3. Wischblatt nach Anspruch 1, dadurch gekennzeichnet, daß das Kunststoffteil (16) an den Träger (14) angeklebt ist.3. Wiper blade according to claim 1, characterized in that the plastic part (16) is glued to the carrier (14).
4. Wischblatt nach einem der Ansprüche 1 bis 3, dadurch gekenn¬ zeichnet, daß das Kunststoffteil (16) als Folie ausgebildet ist.4. Wiper blade according to one of claims 1 to 3, characterized gekenn¬ characterized in that the plastic part (16) is designed as a film.
5. Wischblatt nach einem der Ansprüche 1 bis 4, dadurch gekenn¬ zeichnet, daß das Kunststoffteil (16) vor der Benutzung des Wisch¬ blatts (10) mit einer abnehmbaren Abdeckung überdeckt ist. 5. Wiper blade according to one of claims 1 to 4, characterized gekenn¬ characterized in that the plastic part (16) before use of the wiper blade (10) is covered with a removable cover.
PCT/DE1994/000672 1993-07-03 1994-06-16 Windscreen wiper for motor vehicles WO1995001896A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934322200 DE4322200A1 (en) 1993-07-03 1993-07-03 Wiper blade for cleaning windows on motor vehicles
DEP4322200.5 1993-07-03

Publications (1)

Publication Number Publication Date
WO1995001896A1 true WO1995001896A1 (en) 1995-01-19

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Family Applications (1)

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PCT/DE1994/000672 WO1995001896A1 (en) 1993-07-03 1994-06-16 Windscreen wiper for motor vehicles

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WO (1) WO1995001896A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044218A1 (en) * 1996-05-21 1997-11-27 Robert Bosch Gmbh Process and device for determining the condition of a wiper blade of a motor vehicle
FR2753943A1 (en) * 1996-09-30 1998-04-03 Valeo Systemes Dessuyage Automobile windscreen wiper with wear sensor
FR2787076A1 (en) 1998-12-15 2000-06-16 Valeo Systemes Dessuyage MOTOR VEHICLE WINDSCREEN WIPER HAVING AN AGING INDICATOR
EP1103435A1 (en) 1999-11-24 2001-05-30 Federal-Mogul S.A. Windscreen wiper device
WO2005016045A1 (en) * 2003-08-13 2005-02-24 Peltor Ab Indicator device
AU2006200512B2 (en) * 2003-08-13 2009-05-14 3M Innovative Properties Company Indicator Device
DE102007056322A1 (en) 2007-11-22 2009-05-28 Robert Bosch Gmbh Display device for a wiper blade
CN106394504A (en) * 2015-08-03 2017-02-15 梁嘉麟 Use method and making method for all-plastic type transparent plastic automobile window windscreen wiper
CN106394497A (en) * 2015-07-28 2017-02-15 梁嘉麟 A method for reducing the degree of influence of an automobile window wiper on the vision of a driver

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
DE19650159A1 (en) * 1996-12-04 1998-06-10 Teves Gmbh Alfred Wiper blade for cleaning windows on vehicles
FR2860470B1 (en) * 2003-10-06 2006-12-08 Valeo Systemes Dessuyage WIPER BLADE COMPRISING A PROTECTED AGING INDICATOR.
FR2899544B1 (en) * 2006-04-06 2008-06-20 Valeo Systemes Dessuyage INTEGRATED COLOR INDICATOR WIPER BLADE
FR2909346B1 (en) * 2006-11-30 2009-01-09 Valeo Systemes Dessuyage WEAR INDICATOR WITH SOLUBLE PROTECTIVE ELEMENT
DE102010062632A1 (en) * 2010-12-08 2012-06-14 Robert Bosch Gmbh Wiper arm and wiper blade for a windshield wiper device of a motor vehicle
DE102011057094A1 (en) 2011-12-28 2013-07-04 Valeo Systèmes d'Essuyage Wiper device for cleaning vehicle windows and wiper blade for use in a wiper device
DE202015100497U1 (en) 2015-02-03 2015-02-24 Voss-Helme Gmbh & Co. Kg UV aging indicator for plastic products, in particular for protective helmets

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US4389217A (en) * 1979-05-11 1983-06-21 Allied Corporation Integrated time-temperature or radiation-dosage history recording device
DE3639831A1 (en) * 1986-11-21 1988-05-26 Swf Auto Electric Gmbh Method and device for increasing the operational safety of a motor vehicle

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US4389217A (en) * 1979-05-11 1983-06-21 Allied Corporation Integrated time-temperature or radiation-dosage history recording device
DE3639831A1 (en) * 1986-11-21 1988-05-26 Swf Auto Electric Gmbh Method and device for increasing the operational safety of a motor vehicle

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044218A1 (en) * 1996-05-21 1997-11-27 Robert Bosch Gmbh Process and device for determining the condition of a wiper blade of a motor vehicle
FR2753943A1 (en) * 1996-09-30 1998-04-03 Valeo Systemes Dessuyage Automobile windscreen wiper with wear sensor
US6775877B1 (en) * 1998-12-15 2004-08-17 Valeo Systemes D'essuyage Motor vehicle wiper comprising a wear indicator
FR2787076A1 (en) 1998-12-15 2000-06-16 Valeo Systemes Dessuyage MOTOR VEHICLE WINDSCREEN WIPER HAVING AN AGING INDICATOR
WO2000035726A1 (en) 1998-12-15 2000-06-22 Valeo Systemes D'essuyage Motor vehicle wiper comprising a wear indicator
US7194781B1 (en) 1999-11-24 2007-03-27 Federal-Mogul S.A. Windscreen wiper device with life span indicator
WO2001038148A1 (en) * 1999-11-24 2001-05-31 Federal-Mogul Sa Windscreen wiper device
EP1103435A1 (en) 1999-11-24 2001-05-30 Federal-Mogul S.A. Windscreen wiper device
WO2005016045A1 (en) * 2003-08-13 2005-02-24 Peltor Ab Indicator device
AU2006200512B2 (en) * 2003-08-13 2009-05-14 3M Innovative Properties Company Indicator Device
KR101137517B1 (en) * 2003-08-13 2012-04-20 쓰리엠 스벤스카 악티보라그 Indicator device
US9615619B2 (en) 2003-08-13 2017-04-11 3M Innovative Properties Company Indicator devices and articles comprising the indicator device
DE102007056322A1 (en) 2007-11-22 2009-05-28 Robert Bosch Gmbh Display device for a wiper blade
WO2009065647A1 (en) * 2007-11-22 2009-05-28 Robert Bosch Gmbh Display device for a wiper blade
US8510895B2 (en) 2007-11-22 2013-08-20 Robert Bosch Gmbh Display device for a wiper blade
CN106394497A (en) * 2015-07-28 2017-02-15 梁嘉麟 A method for reducing the degree of influence of an automobile window wiper on the vision of a driver
CN106394504A (en) * 2015-08-03 2017-02-15 梁嘉麟 Use method and making method for all-plastic type transparent plastic automobile window windscreen wiper

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