WO1998015438A1 - Wiper blade for vehicle window panes - Google Patents
Wiper blade for vehicle window panes Download PDFInfo
- Publication number
- WO1998015438A1 WO1998015438A1 PCT/DE1997/001840 DE9701840W WO9815438A1 WO 1998015438 A1 WO1998015438 A1 WO 1998015438A1 DE 9701840 W DE9701840 W DE 9701840W WO 9815438 A1 WO9815438 A1 WO 9815438A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wiper blade
- support element
- wiper
- blade according
- bending claws
- 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.)
- Ceased
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
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3849—Connectors therefor; Connection to wiper arm; Attached to blade
- B60S1/3851—Mounting of connector to blade assembly
- B60S1/3856—Gripping the blade
-
- 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
- B60S1/40—Connections between blades and arms
-
- 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
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3849—Connectors therefor; Connection to wiper arm; Attached to blade
- B60S1/3851—Mounting of connector to blade assembly
- B60S1/3858—Mounting of connector to blade assembly with protrusions cooperating with holes
-
- 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
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3849—Connectors therefor; Connection to wiper arm; Attached to blade
- B60S1/3865—Connectors having an integral pivot pin for connection with the wiper arm
- B60S1/3867—Connectors having an integral pivot pin for connection with the wiper arm pin formed on the interior of side walls
-
- 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
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3874—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra
- B60S1/3875—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section
-
- 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
- B60S1/40—Connections between blades and arms
- B60S1/4006—Connections between blades and arms for arms provided with a hook-shaped end
Definitions
- the support element is intended to ensure as uniform a distribution as possible of the wiper blade contact pressure emanating from the wiper arm on the windshield over the entire wiping area covered by the wiper blade.
- the curvature of the wiper blade must therefore be somewhat stronger than the greatest curvature measured on the windshield to be wiped in the wiping field.
- the support element thus replaces the complex support bracket construction with two spring rails arranged in the wiper strip, as is practiced with conventional wiper blades.
- the invention is based on a wiper blade according to the preamble of claim 1.
- the stop surfaces are arranged on lugs connected in one piece to the support element, which lead to the device for connecting the wiper blade to the driven one Belong to the wiper arm.
- the support element is made of a plastic and this is therefore made together with the approaches by filling an appropriate shape.
- the support element is to be made of metal, there are two diametrically opposed requirements.
- the support element should have good spring properties, on the other hand, however, the shoulders should be easily bent out of the plane of the support element by about 90 degrees and fixed in this position so that the loads occurring during operation between the wiper blade and wiper arm can be absorbed at the stop surfaces.
- the support element is provided with a connecting device designed as a separate component.
- This connection device is firmly connected to the support element by means of rivets.
- the bores required for this lead to an undesirable, because uncontrollable change in Support element tension, so that a satisfactory wiping result cannot be achieved.
- a choice of material which meets the requirements of the respective component can be made both for the support element and for the connecting device.
- the two components are connected to one another easily and inexpensively by means of the initially preferably open bending claws, which are pressed together after preassembly - that is to say when the connecting device is placed on the supporting element.
- a particularly simple form of the invention is obtained if the bending claws are integrally connected to the connecting device via the other U-leg.
- the bending claws are integrally connected to the supporting element via the one U-leg.
- the opposing bending claws can also each form separate parts or in pairs.
- the separate component of the connection device is U-shaped in cross section, the facing surfaces of the two U-legs forming the stop surfaces and the U-base resting on the support element, there is a simple and reliable connection between the wiper arm and the wiper blade, which the forces between wiper arm and wiper blade can reliably absorb during wiping operation.
- This separate, cross-sectionally U-shaped component can be manufactured particularly easily if it is bent from a metal sheet and the bending claws are cut out of it and bent out of the U-leg of the U-shaped component in the opposite direction of extension.
- a secure connection between the support element and the separate component forming the connection device is achieved if the bending claws engage around the longitudinal edges of the support element facing away from one another.
- FIG. 1 shows a side view of a wiper blade according to the invention
- FIG. 2 shows a top view of the wiper blade according to FIG. 1
- FIG. 3 shows a perspective view of the central section of a support element belonging to the wiper blade and a connecting device for a wiper arm designed as a separate component
- Figure 4 is an out of scale
- connection device in the direction of arrow IV seen, the connecting device being placed on the support element.
- a wiper blade 10 shown in FIGS. 1 and 2 has an elongated, spring-elastic support element 12, on the underside of which an elongated, rubber-elastic wiper strip 14 is fastened parallel to the longitudinal axis. At the top of the support member 12 is one
- Connection device 16 is arranged, by means of which the wiper blade 10 can be releasably connected to a driven wiper arm 18.
- a hook serving as a counter-connecting means is formed, which engages around a hinge pin 22 belonging to the connecting device 16 of the wiper blade.
- the securing between the wiper arm 18 and the wiper blade 10 is performed by securing means, not known per se, designed as an adapter.
- the wiper arm 18 and thus also the hook at the end 20 is in
- the surface to be wiped is indicated in FIG. 1 by a dash-dotted line 26. Since the dash-dotted line 26 is intended to represent the strongest curvature of the window surface, it can be clearly seen that the curvature of the wiper blade resting with its two ends on the window is stronger than the maximum window curvature. Under the contact pressure (arrow 24), the wiper blade with its wiper lip 28 bears against the window surface 26 over its entire length. A tension builds up in the spring-elastic support element 12, which ensures proper contact of the wiper strip 14 or its wiper lip 28 over its entire length on the window.
- the connecting device 16 is bent in the exemplary embodiment from a metal sheet and has a U-shaped cross section. It thus has a U base 30, to which the two U legs 32 and 34 are arranged at a distance from one another. The two ends of the hinge pin 22 are fastened in the two U-legs 32 and 34. From the two U-legs 32 and 34, two cut-out tabs 36 are bent out opposite each other in pairs, such that they are opposite to the direction of extension of the U-
- the tabs 36 are initially L-shaped.
- the flaps 36 represent initial forms of U-shaped bending or clamping claws, the meaning of which will be explained later.
- the wiper strip 14 is arranged on the underside of the support element 12, which is made of spring band steel in the exemplary embodiment. It is firmly connected to the support element 12.
- the width 38 in the central region of the support element is greater than the width 40 of the wiper strip 14. This results in protrusions 42 of the support element 12 on both sides in the region of its longitudinal edges 11, 13 facing away from one another.
- the spring rail 12 has two recesses 49 opposite one another to its longitudinal edges 11, 13, in which the central portions of the tabs 36 fit when the connecting device 16 is placed on the support element 12 in the direction of arrow 43. In this way, a reliable locking of the connecting device 16 in the longitudinal direction of the support element 12 is achieved.
- the flaps 36 have after
- the U-legs 46 are integrally connected to the U-shaped component 16, which together with the hinge pin 22 forms the connection device.
- the two mutually facing inner surfaces 48 of the U-legs 32 and 34 of the connecting device 16 form transverse to the working direction (double arrow 50), mutually parallel and in planes on the disk 26 aligned stop surfaces, which cooperate with the lateral boundary edges of the wiper arm 18, which Form counterstops of the wiper arm.
- the across its longitudinal extension over the windshield wiper arm takes the wiper blade 10 in the direction of the double arrow 50 (FIG. 4) via the stop faces 48, so that the wiper blade can carry out its cleaning work.
- the attachment of the connecting device 16 on the metallic support element 12 is thus carried out by U-shaped bending or clamping claws 36, 44, 46 which are made of metal.
- One 44 of the two U-legs 44, 46 of the bending claws 36, 44, 46 thus engages on the support element 12.
- the other leg 46 of the two U-legs of the bending claws is integrally connected to the connecting device 16 and thus engages on it.
- the two bending claws or bending clips 36, 44, 46 encompass the longitudinal edges 11, 13 of the support element 12 facing away from one another, the U-legs 44 of the claws 36, 44, 46 pressing against the projections 42 of the support element 12 from below (in FIG. 4 shown in dash-dotted lines).
- the support element 12 is formed in one piece in the exemplary embodiment, but it can also consist of several parts without departing from the scope of the present invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Wischblatt für Scheiben von KraftfahrzeugenWiper blade for windows of motor vehicles
Stand der TechnikState of the art
Bei Wischblättern der im Oberbegriff des Anspruchs 1 bezeichneten Art soll das Tragelement über das gesamte vom Wischblatt bestrichene Wischfeld eine möglichst gleichmäßige Verteilung des vom Wischerarm ausgehenden Wischblatt- Anpreßdrucks an der Scheibe gewährleisten. Durch eine entsprechende Krümmung des unbelasteten Tragelements - also wenn das Wischblatt nicht an der Scheibe anliegt - werden die Enden der im Betrieb des Wischblatts vollständig an der Scheibe angelegten Wischleiste durch das dann gespannte Tragelement zur Scheibe belastet, auch wenn sich die Krümmungsradien von sphärisch gekrümmten Fahrzeugseheiben bei jeder Wischblattposition ändern. Die Krümmung des Wischblatts muß also etwas stärker sein als die im Wischfeld an der zu wischenden Scheibe gemessene stärkste Krümmung. Das Tragelement ersetzt somit die aufwendige Tragbügelkonstruktion mit zwei in der Wischleiste angeordneten Federschienen, wie sie bei herkömmlichen Wischblättern praktiziert wird. Die Erfindung geht aus von einem Wischblatt nach der Gattung des Anspruchs 1. Bei einem bekannten Wischblatt dieser Art (DE 26 14 457 AI) sind die Anschlagflächen an einstückig mit dem Tragelement verbundenen Ansätzen angeordnet, die zu der Vorrichtung zum Anschließen des Wischblatts an dem angetriebenen Wischerarm gehören. Diese Ansätze bestehen somit aus demselben Material wie das Tragelement . Dies mag möglicherweise solange von untergeordneter Bedeutung sein, als das Tragelement aus einem Kunststoff hergestellt und dieses deshalb samt den Ansätzen durch Füllen einer entsprechenden Form gefertigt wird. Wenn das Tragelement jedoch aus Metall hergestellt werden soll, stehen sich zwei Forderungen diametral gegenüber. Es soll nämlich einmal das Tragelement gute Federeigenschaften aufweisen, andererseits sollen jedoch die Ansätze problemlos aus der Ebene des Tragelements um etwa 90 Grad herausgebogen und in dieser Position fixiert werden, damit die im Betrieb auftretenden Belastungen zwischen Wischblatt und Wischerarm an den Anschlagflächen aufgenommen werden können. Diese beidenIn the case of wiper blades of the type specified in the preamble of claim 1, the support element is intended to ensure as uniform a distribution as possible of the wiper blade contact pressure emanating from the wiper arm on the windshield over the entire wiping area covered by the wiper blade. By means of a corresponding curvature of the unloaded support element - i.e. if the wiper blade is not in contact with the windshield - the ends of the wiper strip which is fully applied to the windshield during operation of the wiper blade are loaded by the then tensioned support element to the windshield, even if the radii of curvature of spherically curved vehicle windows change at each wiper blade position. The curvature of the wiper blade must therefore be somewhat stronger than the greatest curvature measured on the windshield to be wiped in the wiping field. The support element thus replaces the complex support bracket construction with two spring rails arranged in the wiper strip, as is practiced with conventional wiper blades. The invention is based on a wiper blade according to the preamble of claim 1. In a known wiper blade of this type (DE 26 14 457 AI), the stop surfaces are arranged on lugs connected in one piece to the support element, which lead to the device for connecting the wiper blade to the driven one Belong to the wiper arm. These approaches are made of the same material as the support element. This may be of minor importance as long as the support element is made of a plastic and this is therefore made together with the approaches by filling an appropriate shape. However, if the support element is to be made of metal, there are two diametrically opposed requirements. On the one hand, the support element should have good spring properties, on the other hand, however, the shoulders should be easily bent out of the plane of the support element by about 90 degrees and fixed in this position so that the loads occurring during operation between the wiper blade and wiper arm can be absorbed at the stop surfaces. These two
Forderungen können praktisch kaum erfüllt werden, ohne daß man, hinsichtlich der Materialwahl, nachteilige Kompromisse eingehen muß.Requirements can hardly be met in practice without having to compromise on the choice of materials.
Bei einem anderen bekannten Wischblatt (DE 12 47 161) ist das Tragelement mit einer als separates Bauteil ausgebildeten Anschlußvorrichtung versehen. Diese Anschlußvorrichtung ist mit Hilfe von Nieten mit dem Tragelement fest verbunden. Die dazu erforderlichen Bohrungen im Tragelement führen jedoch zu einer unerwünschten, weil unkontrollierbaren Veränderung der Tragelement-Spannung, so daß kein befriedigendes Wischergebnis zu erreichen ist.In another known wiper blade (DE 12 47 161), the support element is provided with a connecting device designed as a separate component. This connection device is firmly connected to the support element by means of rivets. The bores required for this, however, lead to an undesirable, because uncontrollable change in Support element tension, so that a satisfactory wiping result cannot be achieved.
Vorteile der ErfindungAdvantages of the invention
Bei dem gemäß dem Kennzeichen des Anspruchs 1 ausgebildeten Wischblatt dagegen kann sowohl für das Tragelement als auch für die Anschlußvorrichtung eine den Forderungen an das jeweilige Bauteil gerecht werdende Materialwahl getroffen werden. Die Verbindung der beiden Bauteile miteinander erfolgt problemlos und preisgünstig mittels den zunächst vorzugsweise offenen Biegekrallen, die nach einer Vormontage - also dem Aufsetzen der Anschlußvorrichtung auf das Tragelement - fest zusammengedrückt werden.In contrast, in the wiper blade designed according to the characterizing part of claim 1, a choice of material which meets the requirements of the respective component can be made both for the support element and for the connecting device. The two components are connected to one another easily and inexpensively by means of the initially preferably open bending claws, which are pressed together after preassembly - that is to say when the connecting device is placed on the supporting element.
Eine besonders einfache Form der Erfindung ergibt sich, wenn die Biegekrallen über den anderen U-Schenkel einstückig mit der Anschlußvorrichtung verbunden sind. Es ist jedoch auch denkbar, daß die Biegekrallen einstückig über den einen U- Schenkel mit dem Tragelement verbunden sind. Die einander gegenüberliegenden Biegekrallen können aber auch jeder für sich oder paarweise separate Teile bilden.A particularly simple form of the invention is obtained if the bending claws are integrally connected to the connecting device via the other U-leg. However, it is also conceivable that the bending claws are integrally connected to the supporting element via the one U-leg. The opposing bending claws can also each form separate parts or in pairs.
Wenn weiter das separate Bauteil der Anschlußvorrichtung im Querschnitt U-förmig ausgebildet ist wobei die einander zugewandten Flächen der beiden U-Schenkel die Anschlagflächen bilden und die U-Basis an dem Tragelement anliegt ergibt sich eine einfache und betriebssichere Verbindung zwischen Wischerarm und Wischblatt, welche die zwischen Wischerarm und Wischblatt während des Wischbetriebs auftretenden Kräfte zuverlässig aufzunehmen vermag. Dieses separate, im Querschnitt U-förmige Bauteil läßt sich besonders einfach fertigen, wenn es aus einem Metallblech gebogen ist und die Biegekrallen aus diesem freigeschnitten und in entgegengesetzter Erstreckungsrichtung der U-Schenkel des U-förmigen Bauteils aus diesem herausgebogen sind.If the separate component of the connection device is U-shaped in cross section, the facing surfaces of the two U-legs forming the stop surfaces and the U-base resting on the support element, there is a simple and reliable connection between the wiper arm and the wiper blade, which the forces between wiper arm and wiper blade can reliably absorb during wiping operation. This separate, cross-sectionally U-shaped component can be manufactured particularly easily if it is bent from a metal sheet and the bending claws are cut out of it and bent out of the U-leg of the U-shaped component in the opposite direction of extension.
Eine sichere Verbindung zwischen dem Tragelement und dem die Anschlußvorrichtung bildenden separaten Bauteil wird erreicht, wenn die Biegekrallen die voneinander abgewandten Längskanten des Tragelements umgreifen.A secure connection between the support element and the separate component forming the connection device is achieved if the bending claws engage around the longitudinal edges of the support element facing away from one another.
Dabei kann die Verbindung zwischen den Biegekrallen und dem Tragelement zwecks einer Arretierung der Anschlußvorrichtung in Tragelement-Längsrichtung kraftschlüssig und/oder formschlüssig sein.The connection between the bending claws and the support element for the purpose of locking the connecting device in the longitudinal direction of the support element can be non-positive and / or positive.
Weitere, vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung sind in der nachfolgenden Beschreibung eines in der dazugehörigen Zeichnung dargestellten Ausführungsbeispiels angegeben.Further advantageous developments and refinements of the invention are specified in the following description of an exemplary embodiment shown in the associated drawing.
Zeichnungdrawing
In der Zeichnung zeigen: Figur 1 eine Seitenansicht eines erfindungsgemäßen Wischblatts, Figur 2 eine Draufsicht auf das Wischblatt gemäß Figur 1, Figur 3 eine perspektivische Darstellung des Mittelabschnitts eines zum Wischblatt gehörenden Tragelements und einer als separates Bauteil ausgebildeten Anschlußvorrichtung für einen Wischerarm, vergrößert dargestellt und Figur 4 eine unmaßstäblicheFIG. 1 shows a side view of a wiper blade according to the invention, FIG. 2 shows a top view of the wiper blade according to FIG. 1, FIG. 3 shows a perspective view of the central section of a support element belonging to the wiper blade and a connecting device for a wiper arm designed as a separate component, enlarged and Figure 4 is an out of scale
Ansicht der Anschlußvorrichtung gemäß Figur 3, in Richtung des Pfeiles IV gesehen, wobei die Anschlußvorrichtung auf das Tragelement aufgesetzt ist.View of the connection device according to Figure 3, in the direction of arrow IV seen, the connecting device being placed on the support element.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Ein in den Figuren 1 und 2 dargestelltes Wischblatt 10 weist ein langgestrecktes, federelastisches Tragelement 12 auf, an dessen Unterseite eine langgestreckte, gummielastische Wischleiste 14 längsachsenparallel befestigt ist. An der Oberseite des Tragelements 12 ist eineA wiper blade 10 shown in FIGS. 1 and 2 has an elongated, spring-elastic support element 12, on the underside of which an elongated, rubber-elastic wiper strip 14 is fastened parallel to the longitudinal axis. At the top of the support member 12 is one
Anschlußvorrichtung 16 angeordnet, mit deren Hilfe das Wischblatt 10 mit einem angetriebenen Wischerarm 18 lösbar verbunden werden kann. An dem freien Ende 20 des Wischerarms 18 ist ein als Gegenanschlußmittel dienender Haken angeformt, welcher einen zur Anschlußvorrichtung 16 des Wischblatts gehörenden Gelenkbolzen 22 umgreift. Die Sicherung zwischen dem Wischerarm 18 und dem Wischblatt 10 wird durch nicht näher dargestellte, an sich bekannte, als Adapter ausgebildete Sicherungsmittel übernommen. Der Wischerarm 18 und damit auch der Haken am Ende 20 ist inConnection device 16 is arranged, by means of which the wiper blade 10 can be releasably connected to a driven wiper arm 18. On the free end 20 of the wiper arm 18, a hook serving as a counter-connecting means is formed, which engages around a hinge pin 22 belonging to the connecting device 16 of the wiper blade. The securing between the wiper arm 18 and the wiper blade 10 is performed by securing means, not known per se, designed as an adapter. The wiper arm 18 and thus also the hook at the end 20 is in
Richtung des Pfeiles 24 zur zu wischenden Scheibe belastet, deren zu wischende Oberfläche in Figur 1 durch eine strichpunktierte Linie 26 angedeutet ist. Da die strichpunktierte Linie 26 die stärkste Krümmung der Scheibenoberfläche darstellen soll ist klar ersichtlich, daß die Krümmung des mit seinen beiden Enden an der Scheibe anliegenden Wischblatts stärker ist als die maximale Scheibenkrümmung. Unter dem Anpreßdruck (Pfeil 24) legt sich das Wischblatt mit seiner Wischlippe 28 über seine gesamte Länge an der Scheibenoberfläche 26 an. Dabei baut sich im federelastischen Tragelement 12 eine Spannung auf, welche für eine ordnungsgemäße Anlage der Wischleiste 14 bzw. deren Wischlippe 28 über deren gesamte Länge an der Scheibe sorgt.Loaded in the direction of arrow 24 to the window to be wiped, the surface to be wiped is indicated in FIG. 1 by a dash-dotted line 26. Since the dash-dotted line 26 is intended to represent the strongest curvature of the window surface, it can be clearly seen that the curvature of the wiper blade resting with its two ends on the window is stronger than the maximum window curvature. Under the contact pressure (arrow 24), the wiper blade with its wiper lip 28 bears against the window surface 26 over its entire length. A tension builds up in the spring-elastic support element 12, which ensures proper contact of the wiper strip 14 or its wiper lip 28 over its entire length on the window.
Im folgenden soll die Verbindung zwischen dem Tragelement 12 und der Anschlußvorrichtung 16 anhand der Figuren 3 und 4 näher erläutert werden. Die Anschlußvorrichtung 16 ist beim Ausführungsbeispiel aus einem Metallblech gebogen und weist einen U-förmigen Querschnitt auf. Es hat somit eine U- Basis 30, an die sich mit Abstand voneinander angeordnet die beiden U-Schenkel 32 und 34 anschließen. In den beiden U- Schenkeln 32 und 34 sind die beiden Enden des Gelenkbolzens 22 befestigt. Aus den beiden U-Schenkeln 32 und 34 sind einander paarweise gegenüberliegend jeweils zwei freigeschnittene Lappen 36 herausgebogen, derart, daß sie sich entgegengesetzt zur Erstreckungsrichtung der U-The connection between the support element 12 and the connecting device 16 will be explained in more detail below with reference to FIGS. 3 and 4. The connecting device 16 is bent in the exemplary embodiment from a metal sheet and has a U-shaped cross section. It thus has a U base 30, to which the two U legs 32 and 34 are arranged at a distance from one another. The two ends of the hinge pin 22 are fastened in the two U-legs 32 and 34. From the two U-legs 32 and 34, two cut-out tabs 36 are bent out opposite each other in pairs, such that they are opposite to the direction of extension of the U-
Schenkel 32, 34 erstrecken. Beim Ausführungsbeispiel sind die Lappen 36 zunächst L-förmig. Die Lappen 36 stellen Ausgangsformen von U-förmigen Biege- oder Klemmkrallen dar, deren Bedeutung später noch erläutert wird. Wie Figur 3 zeigt, ist an der Unterseite des beim Ausführungsbeispiel aus einem Federbandstahl gefertigten Tragelements 12 die Wischleiste 14 angeordnet. Sie ist fest mit dem Tragelement 12 verbunden. Die Breite 38 im mittleren Bereich des Tragelements ist größer als die Breite 40 der Wischleiste 14. Es ergeben sich somit auf beiden Seiten Überstände 42 des Tragelements 12 im Bereich von dessen voneinander abgewandten Längskanten 11, 13. Wie Figur 4 zeigt entsprechen die Abstände zwischen den zu einem Paar gehörenden Lappen 36 der Breite 38 des Tragelements 12, so daß diese, wenn die Anschlußvorrichtung 16 in Richtung des Pfeils 43 auf das Tragelement 12 aufgesetzt wird, für eine ordnungsgemäße Seitenführung der Anschlußvorrichtung 16 auf dem Tragelement 12 sorgen. Diese Vormontageposition ist in Figur 4 gezeigt, wobei die Außenseite der U-Basis 30 der Anschlußvorrichtung 16 an der oberen Seite des Tragelements 12 zur Anlage kommt . Wenn die Anschlußvorrichtung 16 in Längsrichtung des Tragelements 12 ausgerichtet ist, werden die freien Enden 44 der L-förmigen Lappen 36 so nach innen umgebogen, daß sie, wie in Figur 4 strichpunktiert dargestellt, an der Unterseite des Tragelements 12 anliegen. Dabei kommt eine kraftschlüssige und/oder formschlüssige Verbindung zwischen den Klammern oder Krallen 36, 44, 46 und dem Tragelement 12 zustande. Eine Möglichkeit einer Formschlußverbindung ist in den Figuren 3 und 4 angedeutet. Dort hat die Federschiene 12 einander gegenüberliegend zwei zu ihren Längskanten 11, 13 randoffene Aussparungen 49, in welchen die Mittelabschnitte der Lappen 36 passend sitzen, wenn die Anschlußvorrichtung 16 auf das Tragelement 12 in Richtung des Pfeiles 43 aufgesetzt ist. Auf diese Weist wird eine zuverlässige Arretierung der Anschlußvorrichtung 16 in Längsrichtung des Tragelements 12 erreicht. Die Lappen 36 haben nach demLeg 32, 34 extend. In the exemplary embodiment, the tabs 36 are initially L-shaped. The flaps 36 represent initial forms of U-shaped bending or clamping claws, the meaning of which will be explained later. As FIG. 3 shows, the wiper strip 14 is arranged on the underside of the support element 12, which is made of spring band steel in the exemplary embodiment. It is firmly connected to the support element 12. The width 38 in the central region of the support element is greater than the width 40 of the wiper strip 14. This results in protrusions 42 of the support element 12 on both sides in the region of its longitudinal edges 11, 13 facing away from one another. As FIG. 4 shows, the distances between the to a pair of tabs 36 of width 38 of the support member 12 so that when the connector 16 is placed in the direction of arrow 43 on the support member 12, for proper lateral guidance of the connector 16 provide the support member 12. This pre-assembly position is shown in FIG. 4, the outside of the U-base 30 of the connection device 16 coming to rest on the upper side of the support element 12. When the connecting device 16 is aligned in the longitudinal direction of the support element 12, the free ends 44 of the L-shaped tabs 36 are bent inwards such that they rest on the underside of the support element 12, as shown in broken lines in FIG. This creates a non-positive and / or positive connection between the clips or claws 36, 44, 46 and the support element 12. One possibility of a positive connection is indicated in Figures 3 and 4. There, the spring rail 12 has two recesses 49 opposite one another to its longitudinal edges 11, 13, in which the central portions of the tabs 36 fit when the connecting device 16 is placed on the support element 12 in the direction of arrow 43. In this way, a reliable locking of the connecting device 16 in the longitudinal direction of the support element 12 is achieved. The flaps 36 have after
Umbiegen der Enden 44 ihre endgültige U-Form, wobei der eine U-Schenkel - die freien Enden 44 - am Tragelement 12 angreifen. Die U-Schenkel 46 sind einstückig mit dem U- förmigen Bauteil 16 verbunden, welches zusammen mit dem Gelenkbolzen 22 die Anschlußvorrichtung bildet. Die beiden aneinander zugewandten Innenflächen 48 der U-Schenkel 32 und 34 der Anschlußvorrichtung 16 bilden quer zur Arbeitsrichtung (Doppelpfeil 50) verlaufende, zueinander parallel und in auf der Scheibe 26 stehenden Ebenen ausgerichtete Anschlagflächen, die mit den seitlichen Begrenzungskanten des Wischerarms 18 zusammenarbeiten, welche Gegenanschläge des Wischerarms bilden. Der quer zu seiner Längserstreckung über die Scheibe bewegte Wischerarm nimmt über die Anschlagflächen 48 das Wischblatt 10 in Richtung des Doppelpfeiles 50 (Figur 4) mit, so daß das Wischblatt seine Reinigungsarbeit ausführen kann.Bending the ends 44 into their final U-shape, with one U-leg - the free ends 44 - engaging on the support element 12. The U-legs 46 are integrally connected to the U-shaped component 16, which together with the hinge pin 22 forms the connection device. The two mutually facing inner surfaces 48 of the U-legs 32 and 34 of the connecting device 16 form transverse to the working direction (double arrow 50), mutually parallel and in planes on the disk 26 aligned stop surfaces, which cooperate with the lateral boundary edges of the wiper arm 18, which Form counterstops of the wiper arm. The across its longitudinal extension over the windshield wiper arm takes the wiper blade 10 in the direction of the double arrow 50 (FIG. 4) via the stop faces 48, so that the wiper blade can carry out its cleaning work.
Die Befestigung der Anschlußvorrichtung 16 am metallischen Tragelement 12 erfolgt also durch U-förmige Biege- oder Klemmkrallen 36, 44, 46 die aus Metall gefertigt sind. Der eine 44 der beiden U-Schenkel 44, 46 der Biegekrallen 36, 44, 46 greift also am Tragelement 12 an. Der andere Schenkel 46 der beiden U-Schenkel der Biegekrallen ist einstückig mit der Anschlußvorrichtung 16 verbunden und greift somit an dieser an. Die beiden Biegekrallen oder Biegeklammern 36, 44, 46 umgreifen dabei die voneinander abgewandten Längskanten 11, 13 des Tragelements 12, wobei die U-Schenkel 44 der Krallen 36, 44, 46 von unten gegen die Überstände 42 des Tragelements 12 drücken (in Figur 4 strichpunktiert dargestellt) .The attachment of the connecting device 16 on the metallic support element 12 is thus carried out by U-shaped bending or clamping claws 36, 44, 46 which are made of metal. One 44 of the two U-legs 44, 46 of the bending claws 36, 44, 46 thus engages on the support element 12. The other leg 46 of the two U-legs of the bending claws is integrally connected to the connecting device 16 and thus engages on it. The two bending claws or bending clips 36, 44, 46 encompass the longitudinal edges 11, 13 of the support element 12 facing away from one another, the U-legs 44 of the claws 36, 44, 46 pressing against the projections 42 of the support element 12 from below (in FIG. 4 shown in dash-dotted lines).
Das Tragelement 12 ist beim Ausführungsbeispiel zwar einteilig ausgebildet, doch kann dieses durchaus auch aus mehreren Teilen bestehen, ohne daß deshalb der Rahmen der vorliegenden Erfindung verlassen wird. The support element 12 is formed in one piece in the exemplary embodiment, but it can also consist of several parts without departing from the scope of the present invention.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996141042 DE19641042A1 (en) | 1996-10-04 | 1996-10-04 | Wiper blade for windows of motor vehicles |
| DE19641042.8 | 1996-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998015438A1 true WO1998015438A1 (en) | 1998-04-16 |
Family
ID=7807919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1997/001840 Ceased WO1998015438A1 (en) | 1996-10-04 | 1997-08-23 | Wiper blade for vehicle window panes |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19641042A1 (en) |
| WO (1) | WO1998015438A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000021811A1 (en) * | 1998-10-12 | 2000-04-20 | Trico Products Corporation | A windscreen wiper |
| FR2893896A1 (en) | 2005-11-30 | 2007-06-01 | Valeo Systemes Dessuyage | Flat windscreen wiper blade mounting support, has upper part including portion that is deformed if support is mounted and attached to blade to allow transverse movement of claws relative to each other between parted and closed-up positions |
| KR100808570B1 (en) | 2000-10-28 | 2008-02-29 | 로베르트 보쉬 게엠베하 | Devices, wiper arms and wiper blades for removable and hinged engagement of wiper blades with wiper arms driven at one end |
| DE10038992B4 (en) * | 2000-08-10 | 2015-10-08 | Valeo Auto-Electric Wischer Und Motoren Gmbh | wiper device |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19835065A1 (en) | 1998-08-04 | 2000-02-10 | Bosch Gmbh Robert | Wiper blade for windows of motor vehicles |
| DE19951971A1 (en) | 1999-10-28 | 2001-05-03 | Bosch Gmbh Robert | Packaging unit for a wiper blade for windshields of motor vehicles housed in this at least in some areas |
| DE19959259B4 (en) * | 1999-12-09 | 2013-01-31 | Volkswagen Ag | Wiper blade for cleaning windows on motor vehicles |
| DE10065124A1 (en) | 2000-12-28 | 2002-07-04 | Bosch Gmbh Robert | Device for releasably connecting a wiper blade to a wiper arm |
| DE10224431A1 (en) | 2002-06-01 | 2003-12-11 | Bosch Gmbh Robert | Packaging for a wiper blade for windows of motor vehicles |
| FR2868376B1 (en) | 2004-04-06 | 2006-06-02 | Valeo Systemes Dessuyage | WIPER BLADE COMPRISING A SUPPORT MOUNT, AN INTERNAL VERTEBRA AND A CONNECTING ELEMENT |
| FR2894544B1 (en) | 2005-12-14 | 2009-07-03 | Valeo Systemes Dessuyage | WIPER BLADE COMPRISING A SUPPORT MOUNT, AN INTERNAL VERTEBRA AND A CONNECTING ELEMENT |
| WO2011098959A1 (en) | 2010-02-09 | 2011-08-18 | Teklas Kaucuk Sanayi Ve Ticaret A.S. | A cap for windscreen wipers |
| WO2011161619A1 (en) | 2010-06-22 | 2011-12-29 | Teklas Kucuk Sanayi Ve Ticaret A.S. | A windscreen wiper |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2160736A (en) * | 1936-01-20 | 1939-05-30 | Trico Products Corp | Window wiper |
| FR1069875A (en) * | 1953-01-14 | 1954-07-13 | Trico Folberth Ltd | Advanced attachment especially for wiper blade |
| US2761169A (en) * | 1952-12-05 | 1956-09-04 | Productive Inventions Inc | Connector for windshield wiper blade |
| DE962316C (en) * | 1955-01-06 | 1957-04-18 | Avog Elektro Und Feinmechanik | Bracket on the wiper blade of windshield wipers |
| US3093856A (en) * | 1960-07-01 | 1963-06-18 | Trico Products Corp | Windscreen wipers |
| US4028770A (en) * | 1975-09-15 | 1977-06-14 | Appel Walter D | Windshield wiper assembly |
-
1996
- 1996-10-04 DE DE1996141042 patent/DE19641042A1/en not_active Withdrawn
-
1997
- 1997-08-23 WO PCT/DE1997/001840 patent/WO1998015438A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2160736A (en) * | 1936-01-20 | 1939-05-30 | Trico Products Corp | Window wiper |
| US2761169A (en) * | 1952-12-05 | 1956-09-04 | Productive Inventions Inc | Connector for windshield wiper blade |
| FR1069875A (en) * | 1953-01-14 | 1954-07-13 | Trico Folberth Ltd | Advanced attachment especially for wiper blade |
| DE962316C (en) * | 1955-01-06 | 1957-04-18 | Avog Elektro Und Feinmechanik | Bracket on the wiper blade of windshield wipers |
| US3093856A (en) * | 1960-07-01 | 1963-06-18 | Trico Products Corp | Windscreen wipers |
| US4028770A (en) * | 1975-09-15 | 1977-06-14 | Appel Walter D | Windshield wiper assembly |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000021811A1 (en) * | 1998-10-12 | 2000-04-20 | Trico Products Corporation | A windscreen wiper |
| US6799348B1 (en) * | 1998-10-12 | 2004-10-05 | Trico Products Corporation | Windscreen wiper |
| DE10038992B4 (en) * | 2000-08-10 | 2015-10-08 | Valeo Auto-Electric Wischer Und Motoren Gmbh | wiper device |
| KR100808570B1 (en) | 2000-10-28 | 2008-02-29 | 로베르트 보쉬 게엠베하 | Devices, wiper arms and wiper blades for removable and hinged engagement of wiper blades with wiper arms driven at one end |
| FR2893896A1 (en) | 2005-11-30 | 2007-06-01 | Valeo Systemes Dessuyage | Flat windscreen wiper blade mounting support, has upper part including portion that is deformed if support is mounted and attached to blade to allow transverse movement of claws relative to each other between parted and closed-up positions |
| WO2007063051A1 (en) | 2005-11-30 | 2007-06-07 | Valeo Systemes D'essuyage | Support for mounting a windscreen wiper blade on a drive arm made of bent sheet |
| US8230546B2 (en) | 2005-11-30 | 2012-07-31 | Valeo Systèmes d'Essuyage | Support for mounting a windscreen wiper blade on a drive arm made of bent sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19641042A1 (en) | 1998-04-09 |
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