EP1032515A1 - Raclette d'essuie-glace - Google Patents

Raclette d'essuie-glace

Info

Publication number
EP1032515A1
EP1032515A1 EP98965169A EP98965169A EP1032515A1 EP 1032515 A1 EP1032515 A1 EP 1032515A1 EP 98965169 A EP98965169 A EP 98965169A EP 98965169 A EP98965169 A EP 98965169A EP 1032515 A1 EP1032515 A1 EP 1032515A1
Authority
EP
European Patent Office
Prior art keywords
wiper blade
blade according
area
wiping
articulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98965169A
Other languages
German (de)
English (en)
Inventor
Walter Seeger
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.)
Seeger Marketing and Consulting GmbH
Original Assignee
Seeger Marketing and Consulting 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
Priority claimed from DE19754449A external-priority patent/DE19754449A1/de
Priority claimed from DE29813251U external-priority patent/DE29813251U1/de
Application filed by Seeger Marketing and Consulting GmbH filed Critical Seeger Marketing and Consulting GmbH
Publication of EP1032515A1 publication Critical patent/EP1032515A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • 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
    • B60S1/3803—Wiper blades heated wiper blades
    • B60S1/3805—Wiper blades heated wiper blades electrically
    • 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
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/52—Arrangement of nozzles; Liquid spreading means
    • B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms
    • B60S1/524—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms arranged in wiper blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3824—Means of supporting or holding the squeegee or blade rubber the blade or squeegee pivoting about an axis parallel to blade longitudinal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
    • B60S2001/3836—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape
    • B60S2001/3837—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape with more than one wiping edge or lip

Definitions

  • the present invention relates to a wiper blade for performing the wiper function on a window, in particular on a windshield of a motor vehicle, which wiper blade has a holding area and a wiping area connected to the holding area and can be pressed onto the window in the direction of operation.
  • wiper blades have always been subject to the problem that, especially when the windshield is only slightly moistened, they perform an irregular and irregular movement on the windshield as a result of tipping over the wiper lip, which movement is generally noticeable as "rattling" of the wiper blades.
  • wiper blades it is to be criticized that the introduction of force is not distributed evenly over the entire wiper blade, but rather takes place only at a few points. This makes the introduction of force indefinable, which also has a negative effect on the wiping performance.
  • wiper blades of the aforementioned type have to be replaced from time to time, since abrasion or damage to the wiper lips facing the window are unavoidable. In the known wiper blades, such a renewal requires the entire wiper blade, including the holding area, to be replaced, which is extremely unsatisfactory in terms of cost and material savings.
  • the object of the present invention is to create a wiper blade in which rattling is impossible.
  • the present invention aims at a wiper blade in which the most uniform, that is distributed over the entire wiper blade, force application is ensured, this force application should be as "deep", that is, as close as possible to the wiping area.
  • the object of the present invention is to provide a wiper blade which can be assembled in a modular manner, that is to say in a simple, inexpensive and time-saving manner, from as few individual parts as possible.
  • this object is achieved by a wiper blade according to the preamble of patent claim 1, in which the holding area has at least two articulation elements projecting in the functional direction and in which the articulation elements on their side facing the wiping area for releasable fixing are adapted to the wiping area.
  • the provision of articulation elements projecting in the functional direction in the wiper blade excellently compensates for the irregular and irregular curvature of the windshield to be wiped as part of the wiping movement.
  • the articulation elements in the holding area of the wiper blade, it is surprisingly possible to create a wiper blade that prevents rattling. This is not least due to the fact that the articulation elements provide a connection between the holding area and the wiping area, which ensures that the force is applied as uniformly as possible, that is to say distributed over the entire wiper blade.
  • the wiper blade is constructed from only a few individual components which can be assembled in a modular manner, preferably snap-in. Thus, even if a component is defective, it is easy, inexpensive and time-saving to replace it Partially guaranteed.
  • the present invention thus provides individual system components in the form of the holding area including the articulation elements and in the form of the wiping area, the latter system component, that is to say the wiping area, being exchangeable in a particularly inventive manner without the holding area also having to be exchanged.
  • the holding area is at least partially surrounded by a covering. It is advisable here for a variety of reasons to at least partially encapsulate the holding area with the covering, the covering being able to be designed, for example, in the form of a bracket. By encapsulating the holding area with the covering, a separation of the function and the design of the wiper blade is achieved in a remarkable way:
  • the holding area is not only protected from external influences such as moisture or dirt by the covering, but there is also the possibility of providing an aerodynamically favorable and nevertheless visually appealing design for the covering.
  • the holding area has at least one channel unit for at least one liquid.
  • a hydraulic system can be provided in a way that is not predictable for the person skilled in the art, which enables a particularly uniform application of force to the wiping area, because the articulation elements can be over the liquid is hydraulically connected to one another and therefore absorbs the force exerted by the spring of the wiper arm on the wiper blade.
  • Both the spring force of the spring of the wiper arm and the diameter of the articulation elements are relevant for the pressure generated in the interior of the holding area. Accordingly, a variable design of the diameter of individual articulation elements can have the effect that a higher contact force on the pane is achieved in certain areas of the wiping area than in other areas.
  • the liquid is at least partially rinsing liquid.
  • at least one check valve for introducing the rinsing liquid and / or at least one pressure limiting valve at the outlet of the liquid can advantageously be provided in the channel part during the conveyance of the liquid.
  • the pump of the windshield washer system then has to generate a pressure which is higher than the pressure which is produced by the spring force of the spring of the wiper arm and by the diameter of the articulation elements in the interior of the wiper arm.
  • Two channel units are expediently provided, which are preferably connected to one another via at least one web and / or are preferably integrated in one half of the casing. This takes into account the fact that the wiper blade is usually arranged in the middle of the wiper arm, which can make a division into two duct units technically meaningful.
  • At least one heating system is provided in the channel unit in accordance with an advantageous embodiment of the present invention.
  • the channel unit has at least one channel which expediently extends in the direction of the casing.
  • two channels are preferably provided, a hydraulic system for uniform power transmission to the wiping area being provided by the liquid located in a preferably first channel, as already explained above.
  • a spray water system is provided by the liquid, preferably flushing liquid, which is preferably supplied to a second channel.
  • the heating system is in the channel, it appears expedient to assign the heating system to at least one channel to avoid freezing the liquid.
  • the channel unit has at least one base part and at least one Base part assigned cover part.
  • the base part and the cover part can be glued, locked or welded together.
  • the cover part is provided to cover the base part. This technical measure serves the desirable goal of hermetically sealing the hydraulic system described above in order to achieve a convincing function of the hydraulic system.
  • the cover part has at least one channel-shaped recess through which the channel is formed.
  • two channel-shaped recesses are provided in the cover part, through which two channels are formed.
  • two channel units are expediently provided, which are preferably connected to one another via at least one web and / or are preferably integrated in one half of the casing.
  • two base parts and two cover parts can also be provided, the two base parts advantageously being connected to one another via at least one web and / or the two cover parts advantageously being connected to one another via at least one web.
  • the articulation elements are accommodated in the base part, they preferably on their are movably received in the base part away from the wiping area between a retracted position and an extended position.
  • each base part receives four articulation elements. In this way it is ensured that the wiping area always lies evenly and with constant contact pressure on the window.
  • the holding area then has eight articulation elements in this case. With such a number of articulation elements, optimal results are achieved with the wiper blade according to the present invention.
  • the articulation element is received in the base part by means of a sleeve.
  • Such sleeves which are designed as bushings for receiving the articulation elements, prove to be particularly useful for a perfect technical function of the hydraulic system when the articulation elements are subjected to permanent and intensive stress.
  • the sleeve has a shoulder at its end facing the wiping area.
  • the base part has at least one receiving area.
  • one articulation element is expediently each assigned to a receiving area, the Articulation element can preferably be moved in the longitudinal direction within the receiving area between a retracted position and an extended position.
  • the receiving area in a preferred manner as an essentially cylindrical recess.
  • the articulation element can be form-fitting with the receiving area, so that a precise fit of the articulation element is ensured in the receiving area.
  • the articulation element is hydraulically supported in the receiving area via the liquid.
  • the dynamic adaptation of the contact pressure and the application of force to the wiping area is therefore accomplished by the hydraulic action, which further increases the flexibility of the wiper blade.
  • the hydraulic action can also compensate or even overcompensate for reaching the extreme positions of the articulation element (retracted position or extended position).
  • the sleeve is arranged between the receiving area and the articulation element.
  • the shoulder located on the end of the sleeve facing the wiping area is the open end of the sleeve Completes the recording area.
  • the receiving area is expediently designed in the form of a bore, the receiving area advantageously being able to have a diameter of approximately ten millimeters, preferably with a collar of approximately twelve millimeters.
  • At least one preferably heatable nozzle can be provided in the base part.
  • An additional hydraulic effect can also be achieved, since the liquid located in the channel and / or acting on the articulation element has an additive pressure-compensating effect, which also compensates for irregularities in the back and forth movement when wiping and rattling of the wiper blade in a reliable manner be prevented.
  • the channel unit is provided with a closure at its free end. This is a particularly simple, yet effective technical measure.
  • the channel unit is made of hydrophobic plastic. This prevents the material of the channel unit from undesirably absorbing or absorbing the liquid; rather, the liquid within the channel unit is permanently available in the desired amount.
  • the articulation elements are expediently arranged essentially parallel to one another and / or in the form of plungers.
  • the articulation elements are movable in their longitudinal direction between a retracted position and an extended position. Since the articulation elements, which can be moved in their longitudinal direction between a retracted position and an extended position, represent a flexible and dynamically adaptable connection between the holding area including the base part and the wiping area, it is ensured that the wiping area always under extreme external conditions, such as strong air swirls rests evenly and with constant contact pressure on the disc.
  • the articulation elements are necessarily extended to the same extent, but rather, for example in the case of a slightly curved wiper blade, it is provided that the articulation elements, which are preferably hydraulically connected to one another via at least part of the liquid, interact with the respective curvature of the window and, consequently, of the wiping area resting on the window, bring about a vibration-damping compensation caused by the hydraulic system by taking a respective intermediate position between the retracted position and the extended position.
  • the wiping area can always rest on the entire surface of the window during the entire wiping movement.
  • LSR Liquid Silicone Rubber
  • the membrane part expediently serves to close off the hydraulic system, where possible even a hermetic seal is achieved.
  • the articulation element has at least one hollow cylindrical central body.
  • the contact pressure and / or the introduction of force take place in a particularly uniform manner if the articulation elements are approximately uniform to one another according to a preferred embodiment are arranged at a distance. In this context, it is particularly important to think of an embodiment in which the articulation elements extend over the entire width of the holding region or of the wiper blade.
  • An expedient embodiment also serves the same purposes, in which the articulation element is of essentially circular cross section and / or has a shape tapering in the direction of the holding region.
  • the articulation element has a spherical end on its side facing the wiping area. It is expedient to assign this spherical end of the articulation element to a recess in the wiping area, in which recess the spherical end of the articulation element can be snapped into place.
  • the spherical design of the end of the articulation element serves in a particularly preferred manner to ensure a rotary movement of the wiping area about an axis which runs parallel to the wiping area through the center points of the spherical ends of the articulation elements.
  • the advantageous effect of a tilting movement of the wiping area when wiping back and forth over the window can be particularly effective.
  • the articulation element can have a flattened end on its side facing the wiping area exhibit.
  • the articulation element is expediently designed as a pressure pin in the context of the hydraulic system.
  • the diameter of the articulation elements can be variable.
  • a connecting part is provided between the wiper arm and the holding area, which is preferably designed as an adapter element with an associated joint element, so that, if desired, a flexible connection between the wiper arm and the holding area is provided.
  • the joint element is at least partially integrated into the casing.
  • the joint element can control the introduction of liquid, preferably rinsing liquid, into a channel in a preferred manner.
  • the wiper arm and / or the wiper blade can also be designed to be slightly curved, curved or arched, also in adaptation to the shape of the window to be wiped his .
  • the wiping area can be tilted about an axis which runs through the ends of the articulation elements facing the wiping area.
  • the advantageous effect of a tilting movement of the wiping area when wiping back and forth over the window is particularly effective if the wiping area expediently has a carrier part and a lip part assigned to the window.
  • the carrier part has on its side facing the holding area at least two receiving areas for the articulation elements, preferably in the form of an elongated hole. It can be provided here that the end of the articulation element facing the wiping area can be snapped into the receiving area in a form-fitting and / or non-positive manner, the snapping-in taking place in a manner of a bayonet.
  • a preferably mechanical stop limitation is provided between the end of the articulation element facing the wiping area and the end of the receiving area facing the holding area. This reliably prevents the wiping area from overturning or tipping over when it is wiped back and forth.
  • Typical tilt angles for the wiping area move here in the range of about 15 degrees to about 20 degrees.
  • the wiper blade according to the present invention Compared to conventional wiper blades, which usually have a mass between 200 grams and 300 grams, the wiper blade according to the present invention - without sacrificing mechanical strength and stability - is made in a lightweight construction, so that the mass of the present Wiper blade is only about 75 grams to about 100 grams.
  • the wiper blade according to the present invention does not depend on a reinforcing metal plate which is intended to prevent the wiping region from bending. Rather, in the present case, reinforcement takes place solely through the shape, not least by means of the above-described web.
  • the advantageous embodiment of the present invention according to which the carrier part is made of plastic, preferably of PA, also contributes to this mass saving.
  • Such a lightweight construction has the advantage, among other things, that a weaker wiper motor can be used, which naturally also leads to cost savings.
  • LSR Liquid Silicone Rubber
  • the liquid can be conducted from a storage container through the holding area and through the articulation elements into channels which are provided in the wiping area and can serve for a direct and uniform wetting of the pane with liquid, preferably with rinsing liquid. This achieves a particularly good wiping function with a convincing cleaning effect.
  • FIGS. 1 to 8 Further refinements, features and advantages of the present invention are described below with reference to FIGS. 1 to 8, by means of which an exemplary embodiment of the wiper blade is illustrated in exemplary form.
  • Figure 1 is an exploded view of a
  • Wiper blade according to the present invention
  • FIG. 2 shows a top view of the covering of the wiper blade from FIG. 1;
  • Figure 3 is a sectional view of the wiper blade Figure 1 without wiping area
  • FIG. 4 shows a side sectional view of a section of the holding area of the wiper blade from FIG. 1 without the wiping area;
  • FIG. 5 shows a further side sectional view of a section of the holding area of the wiper blade from FIG. 1 without the wiping area;
  • Figure 6 is a side sectional view of the
  • FIG. 7 shows an enlarged sectional view of the wiping area from FIG. 6.
  • Figure 8 is a plan view of the carrier part of the
  • the wiper blade shown in FIG. 1 has a holding area 1 and a wiping area 6 connected to the holding area 1 and can be pressed onto the window in the functional direction, the holding area 1 having eight articulation elements 50 projecting in the functional direction and facing the wiping area 6 Side are adapted for releasable fixing on the wiping area 6.
  • the articulation elements 50 are arranged essentially parallel to one another and in the form of pressure bolts or plungers.
  • protruding articulation elements 50 in the wiper blade according to the present invention excellently compensates for the irregular and irregular curvature of the window to be wiped as part of the wiping movement.
  • the articulation elements 50 in the holding area 1 of the wiper blade, it is possible to create a wiper blade in which rattling is excluded. This is not least due to the fact that the articulation elements 50 provide a connection between the holding area 1 and the wiping area 6, which ensures that the introduction of force is as uniform as possible, that is to say distributed over the entire wiper blade.
  • the wiper blade is constructed from only a few individual components which can be assembled in a modular manner. Thus, even if a component is defective, simple, inexpensive and time-saving replacement of this component is guaranteed. In this case, when the wiper blade shown in FIG. 1 is renewed, it is only necessary to replace the wiping area 6, but not also to replace the holding area 1, because the articulation elements 50 on their side facing the wiping area 6 are designed to be detachably fixed to the wiping area 6.
  • the wiper blade shown in FIG. 1 thus provides individual system components in the form of the holding area 1, including the articulation elements 50 and in the form of the wiping area 6, the latter system component, that is to say the wiping area 6, being exchangeable without the holding area 1 also having to be exchanged.
  • the holding area 1 is surrounded by an envelope 10, which is shown in detail in FIG. 2 in a detailed view.
  • the holding area 1 is extrusion-coated with the sheath 10 in the form of a bracket.
  • the holding area 1 While the components and features required for a proper technical function of the wiper blade are contained in the form of the holding area 1, increased aesthetic and design requirements and expectations can also be taken into account in a convincing manner by means of a corresponding shape and color of the covering 10 become.
  • the holding area 1 is not only protected from external influences such as moisture or dirt by the covering 10, but there is also the possibility of providing an aerodynamically favorable and nevertheless visually appealing design for the covering 10, as is shown in FIGS. 1 and 2 is the case.
  • the holding area 1 has a channel unit 20 for liquids.
  • a hydraulic system is provided which enables a particularly uniform application of force to the wiping area 6, because the articulation elements 50 are hydraulically connected to one another via the liquid , as can be seen from the illustration in FIG. 3 and in particular in FIG. 5.
  • the channel unit 20 is made of hydrophobic plastic. This prevents the material of the channel unit 20 from absorbing the liquid; rather, the liquid within the channel unit 20 is permanently available in the desired amount.
  • the channel unit 20 is provided in the form of two halves, one half of the channel unit 20 being integrated in one half of the casing 10. This takes into account the fact that the wiper blade is generally arranged in its center on the wiper arm, which makes it technically sensible to divide the channel unit 20 makes, because in this way the supply of the liquid can also take place via a recess provided centrally in the casing 10, as can be seen from FIG.
  • FIGS. 3, 4 and 5 show that the channel unit 20 has two channels 201, 202 which extend in the direction of the casing 10.
  • the above-mentioned hydraulic system for uniform power transmission to the wiping area 6 is provided by the liquid located in the first channel 201.
  • a splash water system is provided by the flushing liquid supplied to the second channel 201, a significant saving in flushing liquid being achieved with the present wiper blade, since the spray water system always provides a defined amount of liquid through the wiper blade itself and not through a construction which is extremely susceptible to faults and is independent of the wiper blade can be applied to the disc.
  • a heating system is provided in channel 202 in order to keep the temperature of the liquid in second channel 202 above the freezing point and consequently to prevent freezing of the rinsing liquid in a reliable manner.
  • the channel unit 20 has two base parts 210 and two cover parts 220 assigned to the base parts 210.
  • base part 210 and cover part 220 are welded to one another, cover part 220 being provided to cover base part 210.
  • This technical measure serves the aim set out above to hermetically seal the described hydraulic system in order to achieve a convincing function of the hydraulic system.
  • the cover part 220 has two channel-shaped recesses through which the channels 201, 202 are formed (see FIGS. 3, 4 and 5).
  • two base parts 210 and two cover parts 220 are provided, the two base parts 210 being connected to one another via a web 2112 and the two cover parts 220 also being connected to one another via a web 2222.
  • the articulation elements 50 are accommodated in the base part 210, wherein they are preferably movably received in the base part 210 on their side facing away from the wiping area 6 between a retracted position and an extended position.
  • the articulation elements 50 which can be moved in their longitudinal direction between a retracted position and an extended position, represent a flexible and dynamically adaptable connection between the holding area 1 including base part 210 and the wiping area 6, it is ensured that the wiping area 6 also under extreme external conditions, such as strong air vortices, always lying evenly and with constant contact pressure on the disc.
  • the articulation elements 50 are necessarily extended to the same extent, but rather it it is rather provided, for example, in the case of a slightly curved wiper blade, that the articulation elements 50, which are hydraulically connected to one another via part of the liquid, in interaction with the respective curvature of the window and consequently the wiping region 6 resting on the window caused one by the hydraulic system Carry out vibration-damping compensation by taking a respective intermediate position between the retracted position and the extended position.
  • the wiping area 6 can always lie on the entire surface of the window during the entire wiping movement.
  • Each base part 210 receives four articulation elements 50. In this way it is ensured that the wiping area 6 always rests evenly and with a constant contact pressure on the window.
  • the holding area 1 accordingly has eight articulation elements 50 (cf. FIG. 1). With such a number of articulation elements 50, optimal results are achieved with the wiper blade according to FIGS. 1 to 8.
  • the articulation element 50 is accommodated in the base part 210 by means of a sleeve 40.
  • Such sleeves 40 which are designed as bushings for receiving the articulation elements 50, prove to be particularly useful for a flawless technical function of the hydraulic system when the articulation elements 50 are subjected to permanent and intensive stress and have a shoulder at their end facing the wiping area 6 one effect hermetic closure of the hydraulic system.
  • the base part 210 has receiving areas 2110, wherein each articulation element 50 is assigned to a receiving area 2110 and can be moved freely in the longitudinal direction between a retracted position and an extended position within the receiving area 2110.
  • the receiving area 2110 is designed as a substantially cylindrical recess, so that the articulation element 50 is form-fitting with the receiving area 2110 and consequently a precise fit of the articulation element 50 in the receiving area 2110 is ensured.
  • the articulation element 50 is hydraulically supported in the receiving area 2110 via the liquid.
  • the dynamic adaptation of the contact pressure and the application of force to the wiping area 6 is therefore accomplished by the hydraulic action, which further increases the flexibility of the wiper blade. Reaching the extreme positions of the articulation element 50 (retracted position or extended position) is also compensated or even overcompensated by the hydraulic effect.
  • the sleeve 40 is arranged between the receiving area 2110 and the articulation element 50.
  • the shoulder located at the end of the sleeve 40 facing the wiping area 6 closes the open end of the receiving area 2110 (cf. FIGS. 3 and 5).
  • FIGS. 4 and 5 show that a heatable nozzle 2120, which is connected to the channel 202, is provided in the base part 210 for spraying washing liquid onto the pane.
  • LSR Liquid Silicone Rubber
  • the membrane part 30 is designed to be flexible and movable in the longitudinal direction of the articulation element 50.
  • the diaphragm part 30 serves to close off the hydraulic system, where possible even a hermetic seal is achieved.
  • the articulation element 50 has a hollow cylindrical central body. With such a configuration of the articulation element 50, the highest possible degree of adaptability is achieved.
  • the contact pressure and / or the introduction of force take place in a particularly uniform manner if the articulation elements 50 are arranged approximately uniformly apart from one another, as is shown in FIG. 1.
  • the articulation elements 50 extend over the entire width of the holding area 1 or of the wiper blade.
  • the articulation element 50 is essentially of circular cross section and has a tapering shape in the direction of the holding area 1. On its side facing the wiping area 6, the articulation element 50 has a spherical end 501 (cf. FIGS. 3, 4, 5 and 6). This spherical end 501 of the articulation element 50 is to be assigned to a recess 610 in the wiping area 6 (see FIGS. 6, 7 and 8), in which recess 610 the spherical end 501 of the articulation element 50 can be latched.
  • the spherical design of the end 501 of the articulation element 50 serves to ensure a rotary movement of the wiping area 6 about an axis which runs parallel to the wiping area 6 through the center points of the spherically shaped ends 501 of the articulation elements 50.
  • the advantageous effect of a tilting movement of the wiping area 6 when wiping back and forth over the window can be particularly effective.
  • a connecting part is provided between the wiper arm and the holding area 1, which is designed as an adapter element 70 with an associated joint element 80, so that a flexible connection is provided between the wiper arm and the holding area 1 (cf. FIG. 1).
  • the joint element 80 is at least partially integrated into the casing 10.
  • the joint element 80 controls the introduction of rinsing liquid into the second Channel 202.
  • the wiping area 6 can be tilted about an axis which runs through the ends of the articulation elements 50 facing the wiping area 6.
  • the advantageous effect of a tilting movement of the wiping area 6 when wiping back and forth over the pane is particularly effective in that the wiping area 6 has a carrier part 60 and a lip part 70 assigned to the pane.
  • the carrier part 60 has, on its side facing the holding area 1, receiving areas 610 for the articulation elements 50 which are in the form of elongated holes.
  • the end of the articulation element 50 facing the wiping area 6 can be snapped into the receiving area 610 in a positive and non-positive manner, the snap-in taking place to a certain extent in a bayonet-like manner.
  • a mechanical stop limitation is provided between the end of the articulation element 50 facing the wiping area 6 and the end of the receiving area 2110 facing the holding area 1 (see FIGS. 6 and 7). This reliably prevents the wiping region 6 from overturning or tipping over when it is being wiped back and forth.
  • Typical tilt angles for the wiping area 6 are in the range of approximately 15 degrees to about 20 degrees.
  • the wiper blade according to the present invention Compared to conventional wiper blades, which usually have a mass between 200 grams and 300 grams, the wiper blade according to the present invention - without sacrificing mechanical strength and stability - is made in a lightweight construction, so that the mass of the present Wiper blade is only about 75 grams to about 100 grams.
  • the wiper blade according to the present invention does not depend on a reinforcing metal plate which is intended to prevent the wiping region from bending. Rather, in the present case, reinforcement takes place solely through the shape, not least by means of the above-described web.
  • the carrier part is made of plastic, preferably PA, contributes to this mass saving.
  • Such a lightweight construction has the advantage, among other things, that a weaker wiper motor can be used, which naturally also leads to cost savings.
  • LSR Liquid Silicone Rubber

Abstract

L'invention concerne une raclette d'essuie-glace dans laquelle la région de fixation (1) comporte au moins deux éléments d'articulation (50) faisant saillie dans le sens de fonctionnement, et dans laquelle ces éléments d'articulation (50) présentent, sur leur côté tourné vers la région d'essuyage (6), une configuration adaptée pour permettre la fixation amovible au niveau de cette région d'essuyage (6). La région de fixation (1) est entourée au moins partiellement d'une enveloppe (10) et possède un canal (20) en plastique hydrophobe, destiné à au moins un liquide, par exemple du liquide de rinçage. Ce canal (20) comprend une partie de base (210) pourvue d'une zone de réception (2110) et une partie de recouvrement (220) associée à cette partie de base (210). Avantageusement, un élément d'articulation (50) est respectivement associé à une zone de réception (2110), cet élément d'articulation (50) étant mobile à volonté en sens longitudinal, de préférence à l'intérieur de la zone de réception (2110), entre une position rentrée et une position avancée. L'élément d'articulation (50) est supporté hydrauliquement, dans la zone de réception (2110), par l'intermédiaire du liquide. L'élément d'articulation (50) présente, sur son côté tourné vers la région d'essuyage (6), une extrémité sphérique en vue d'assurer un mouvement de rotation de ladite région autour d'un axe. La partie lèvre (70) (caoutchouc silicone liquide) comporte trois lèvres d'essuyage.
EP98965169A 1997-11-23 1998-11-22 Raclette d'essuie-glace Withdrawn EP1032515A1 (fr)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
DE19751981 1997-11-23
DE19751981 1997-11-23
DE19754449 1997-12-08
DE19754449A DE19754449A1 (de) 1997-11-23 1997-12-08 Halterung
DE19826699 1998-06-16
DE19826699 1998-06-16
DE29813251U 1998-07-26
DE29813251U DE29813251U1 (de) 1997-11-23 1998-07-26 Wischblatt
PCT/EP1998/007513 WO1999029546A1 (fr) 1997-11-23 1998-11-22 Raclette d'essuie-glace

Publications (1)

Publication Number Publication Date
EP1032515A1 true EP1032515A1 (fr) 2000-09-06

Family

ID=27438724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98965169A Withdrawn EP1032515A1 (fr) 1997-11-23 1998-11-22 Raclette d'essuie-glace

Country Status (2)

Country Link
EP (1) EP1032515A1 (fr)
WO (1) WO1999029546A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102013217962A1 (de) 2013-09-09 2015-03-26 Robert Bosch Gmbh Scheibenwischvorrichtung für ein Fahrzeug, Herstellungsverfahren einer Scheibenwischvorrichtung und Baukasten zum Herstellen einer Scheibenwischvorrichtung
FR3046764B1 (fr) * 2016-01-19 2019-05-03 Valeo Systemes D'essuyage Dispositif d’aspersion de liquide de nettoyage d’une vitre de vehicule automobile, et balai d’essuyage integrant un tel dispositif d'aspersion
FR3046763B1 (fr) * 2016-01-19 2018-01-26 Valeo Systemes D'essuyage Dispositif d'aspersion de liquide de nettoyage d'une vitre de vehicule automobile, et balai d'essuyage integrant un tel dispositif d'aspersion
DE102016207365A1 (de) * 2016-04-29 2017-11-02 Ford Global Technologies, Llc Wasserabweisende Beschichtung einer Fahrzeugscheibe
US11040703B1 (en) * 2020-11-12 2021-06-22 Gregory Mark Adamczak Multifunction windshield wiper with distribution of fluid and air assembled with flexible joints

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US3031709A (en) * 1956-04-24 1962-05-01 Gen Motors Corp Windshield wiper blade
GB1425568A (en) * 1972-06-20 1976-02-18 Trico Floberth Ltd Windscreen wiper blade assemblies
CH597016A5 (fr) * 1975-08-20 1978-03-31 J B Brevets
US4045838A (en) * 1976-03-15 1977-09-06 Acushnet Company Surface layer for windshield wiper blades
FR2551709B1 (fr) * 1983-09-13 1987-06-12 Champion Spark Plug Europ Systeme d'essuie-glace pour vehicules a moteur
FR2628047B1 (fr) * 1988-03-02 1991-02-15 Journee Paul Sa Raclette a double canal pour balai d'essuie-glace
US4959882A (en) * 1988-11-21 1990-10-02 Henderson Donald L Windshield wiper weathershield and sprayer
FI85356C (fi) * 1989-12-13 1992-04-10 Keijo Vornanen Tork- och tvaettanordning foer vindrutan i ett fordon.
FR2682340B1 (fr) * 1991-10-14 1993-12-03 Valeo Systemes Essuyage Essuie-glace carene, notamment pour vehicule automobile.
DE4243133C1 (de) * 1992-12-19 1993-11-04 Daimler Benz Ag Scheibenwischer mit einem ein traegerprofil aufweisenden wischarm
FR2704193B1 (fr) * 1993-04-22 1995-06-02 Journee Paul Sa Essuie-glace de véhicule automobile.
FR2729623B1 (fr) * 1995-01-19 1997-04-04 Valeo Systemes Dessuyage Essuie-glace de vehicule automobile comportant une rampe d'arrosage perfectionnee

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