EP4058332A1 - Wiper blade device - Google Patents
Wiper blade deviceInfo
- Publication number
- EP4058332A1 EP4058332A1 EP20789539.2A EP20789539A EP4058332A1 EP 4058332 A1 EP4058332 A1 EP 4058332A1 EP 20789539 A EP20789539 A EP 20789539A EP 4058332 A1 EP4058332 A1 EP 4058332A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wiper
- spring rail
- wiper blade
- blade device
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 123
- 238000000034 method Methods 0.000 claims description 32
- 238000005485 electric heating Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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
- B60S1/3803—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
- B60S1/04—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
- B60S2001/3817—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
- B60S2001/382—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support the backing strip being an essentially planar reinforcing strip, e.g. vertebra
Definitions
- a wiper blade device with a spring rail has already been proposed, which has at least a first spring rail element, at least a second spring rail element and at least one electrical heating element, which is arranged on the first spring rail element and the second spring rail element.
- the invention is based on a wiper blade device with a spring rail, which has at least a first spring rail element, at least a second spring rail element and at least one electrical heating element, which is arranged on the first spring rail element and the second spring rail element.
- the heating element have at least one Brückensammlungbe rich, which extends at least partially between the Federschienenelemen th.
- a “wiper blade device” should be understood to mean in particular at least a part, in particular a subassembly, of a wiper blade, in particular a windshield wiper blade and advantageously a vehicle windshield wiper blade.
- the wiper blade device also encompass the entire wiper blade, in particular the entire windshield wiper blade and advantageously the entire vehicle windshield wiper blade. It is conceivable that the wiper blade device is designed at least as part of a wiper blade in flat bar design and / or at least as part of a flat bar wiper and / or as a wiper blade in flat bar design and / or as a flat bar wiper.
- the wiper blade device is preferably provided for use on a vehicle.
- the wiper blade device is preferably provided for cleaning a surface, in particular a window, on a vehicle.
- the wiper blade device is coupled to a vehicle, in particular a wiper arm of a vehicle, for cleaning a vehicle window.
- “Provided” is to be understood as meaning, in particular, specially set up, specially designed and / or specially equipped.
- the fact that an object is provided for a specific function should in particular be understood to mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.
- an "operating state” is to be understood in particular as a state in which the wiper blade device is ready for a wiping process and / or a wiping mode and / or is in a wiping mode in which a wiper strip of the wiper blade device is guided in particular over a vehicle window is and advantageously rests against the vehicle window.
- a “wiper arm” is to be understood in particular as a unit of the windshield wiper which is intended to clean the vehicle window via the vehicle window, in particular the wiper blade device attached to the wiper arm and in particular a wiper blade comprising the wiper blade device to move.
- the wiper arm is preferably arranged on at least one drive shaft of a wiper drive of the windshield wiper of the vehicle.
- the wiper arm can be driven by the wiper drive to move relative to the vehicle window.
- the wiper arm preferably has at least one, in particular at least two, wiper fluid supply line (s) which can be connected to the wiper water nozzles of the wiper blade.
- the wiper arm preferably comprises at least one, in particular at least two, electrical supply line / s, such as a cable, which can be connected to the wiper blade device, in particular to the supply unit of a wiper blade adapter.
- the electrical supply line extends preferably at least over a large part of the main extent of the wiper arm from one end of the wiper arm that can be connected to the drive shaft of the wiper drive of the vehicle to one end of the wiper arm that can be connected to the wiper arm adapter.
- the electrical supply line is provided in particular to supply energy to at least one electrical component, in particular a heating element of a spring rail.
- the electrical supply line is provided, in particular, to conduct electrical current at least partially from a power generator, in particular a battery, a generator such as an alternator and / or a dynamo, to / into the supply unit of a wiper blade adapter.
- the at least one electrical supply line is preferably arranged at least substantially parallel to the wiper arm. At least two, in particular exactly two, electrical supply lines are preferably arranged on the wiper arm.
- a “wiper strip” is to be understood in particular as a unit made of at least one elastic material as a wiper base body with a wiper lip, which is provided for cleaning a surface to be cleaned, in particular a window surface, preferably a vehicle window, in contact with the cleaning surface to be moved.
- the wiper strip is preferably made from a natural or artificial elastomer, in particular from a plastic and / or from rubber. It is conceivable that the wiper base body is formed in one piece with the wiper lip.
- a “wiper lip” is to be understood in particular as an elastic lip which is provided for the purpose of wiping over, wiping and / or cleaning a window, in particular a vehicle window, with a wiping edge.
- “In one piece” is to be understood in particular to be at least cohesively connected, for example by a welding process, an adhesive process, an injection process and / or another process that appears sensible to a person skilled in the art and / or advantageously formed in one piece, such as for example by manufacturing from a single source and / or by production in a single or multi-component injection molding process or extrusion process, for example also a co-extrusion process, and advantageously from a single blank.
- this should be understood to mean, in particular, made in one piece, particularly preferably produced in a primary molding process.
- the wiper base body of the wiper strip is preferably designed to take up a spring rail for stabilization.
- the wiper strip can at least partially and preferably completely form at least one spring rail receptacle.
- “elastic” is to be understood in particular to mean that an object can be repeatedly deformed without the object being mechanically damaged or destroyed, and which, in particular after deformation, automatically strives towards a basic shape again.
- the wiper strip in particular forms the spring rail receptacle at least partially and preferably completely.
- a “spring rail receptacle” is to be understood as meaning, in particular, a channel or a groove which is provided to at least partially receive the spring rail.
- the spring rail receptacle is seen in front of the spring rail at least over a substantial part of a main extent to grip around substantially.
- the wiper strip preferably forms two spring rail receptacles designed as lateral receiving grooves, which are provided for partially receiving at least one first spring rail element and / or a second spring rail element.
- the wiper strip can form at least one spring rail receptacle designed as a spring rail channel, which is provided for fully receiving the at least one spring rail.
- the at least one wiper strip is designed to be connectable to the at least one spring rail through the at least one spring rail receptacle.
- the dimensions of the at least one spring rail receptacle are adapted to the shape and size of the at least one spring rail.
- the wiper strip is advantageously connected to the spring rail with a form fit, in particular a force fit.
- a “spring rail” is to be understood in particular as a macroscopic structural unit which has at least one extension that, in a normal operating state and / or assembled state, by at least 10%, in particular by at least 20%, preferably by at least 40% and is particularly advantageously elastically changeable by at least 50%, and in particular generates a counterforce which is dependent on a change in the extension and preferably proportional to the change and which counteracts the change.
- the spring rail includes, in particular, a first spring rail element and a second spring rail element and at least one electrical heating element.
- a “heating element” should preferably be understood to mean an element which converts energy supplied, in particular electrical energy, into heat and is provided to give off the heat to its surroundings and / or surrounding and / or adjoining components.
- the heating element is preferably arranged on the first spring rail element, and in particular on the second spring rail element, and / or the wiper strip.
- the heating element is preferably provided to in particular control the temperature of the at least one first spring rail element and / or the at least one second spring rail element and / or the wiper strip.
- the at least one heating element preferably extends over a large part, in particular the entire main extension of the at least one wiper strip and / or spring rail.
- the at least one heating element is preferably arranged on a side of a wiper blade adapter facing the wiper strip.
- the at least one heating element is preferably arranged such that its main extent is at least substantially parallel to a main plane of extent of the at least one first spring rail element and / or the at least one second spring rail element.
- a “main extension plane” of an object is to be understood in particular as a plane which runs parallel to a largest outer surface of a smallest cuboid that just completely surrounds the object and which preferably runs through a geometric center of gravity of the cuboid.
- the at least one heating element preferably has at least one heating resistor.
- the at least one heating element has, for example, a heating conductor which has, for example, a heating wire and / or a heating foil and / or a particularly conductive heating ceramic and / or a particularly conductive heating paste. It is conceivable that the wiper blade device has a plurality of heating elements such as two, three, four or the like. To this end, the heating element is advantageously provided for tempering at least the at least one wiper lip on a Carry out temperature at which a wiping process can be carried out, in particular at which flexibility of a wiper lip rubber is guaranteed, in particular optimized, for a wiping process. In particular, cleaning of the vehicle window can be accelerated and / or improved in particular at outside temperatures of below 0 ° C.
- the wiper blade device can enable at least one advantageous heating function through the heating element.
- An electrical interface element is preferably arranged on the wiper arm adapter for a connection, in particular a plug connection, to an electrical supply line.
- the at least one spring element preferably connects the electrical interface element on the wiper arm adapter in an electrically conductive manner to the at least one heating element.
- the spring element is at least partially formed from an electrically conductive metal.
- the spring element on the electrical interface element on the wiper arm adapter is preferably overmolded to form a connection, in particular overmolded, preferably formed by an overmolding technique and / or an overmolding technique and / or an injection molding technique such as multi-component injection molding.
- the spring element is preferably arranged in a region of the wiper blade adapter on an inner side of an outer wall of the adapter connection element.
- the spring element preferably extends out of the wiper blade adapter in an area surrounding the bearing element in the direction of the heating element.
- the heating element is designed in particular as a film-like electrical heater, which is provided in particular to heat the spring rail and / or a wiper strip and is preferably glued at least to the first spring rail element and / or at least to the second spring rail element.
- the heating element has in particular at least two bridge heating areas which extend essentially between the spring rail elements.
- a “bridge heating area” is to be understood in particular as an area of the heating element which is provided to connect at least the first spring rail element to at least the second spring rail element. In particular, the bridge heating area is provided in particular to heat the wiper strip and / or in particular the spring rail.
- the bridge heating area in particular has an extension along a longitudinal extension of the spring rail, which is in particular significantly smaller than the corresponding longitudinal extension of the spring rail.
- the longitudinal extension of the bridge heating area can advantageously be parallel to the longitudinal extension of the spring rail.
- the longitudinal extent of the bridge heating area is, for example, a maximum of 40%, advantageously a maximum of 30%, particularly advantageously a maximum of 20%, preferably a maximum of 10% and particularly preferably a maximum of 5% of the longitudinal extent of the spring rail.
- the bridge heating area can be formed, for example, at least essentially from the same material as the heating element.
- the bridge heating area could be designed as a film.
- the bridge heating area advantageously has at least one adhesive surface.
- the bridge heating area could in particular be welded to the first spring rail element and / or to the second spring rail element.
- the bridge heating area could particularly advantageously be designed in one piece, in particular with the first spring rail element and / or in particular with the second spring rail element.
- an “assembled state” is to be understood in particular as a state in which the wiper blade device is ready for a wiping process and / or a wiping operation.
- the wiper blade device is arranged in a mounted state on a wiper arm and / or coupled to a wiper arm, with a mechanical, electrical and / or fluidic coupling in particular between the wiper arm and the wiper blade device.
- the at least one first spring rail element and / or at least the second spring rail element is preferably formed at least partially from a metal.
- the spring rail elements at least partially are formed from a plastic, from a composite material or from another material that appears sensible to a person skilled in the art.
- the spring rail elements are at least partially formed from a Fe derstahl.
- the spring rail In an unloaded state, the spring rail preferably has at least essentially the shape of a curved rod and, particularly advantageously, a flattened curved rod.
- the spring rail ne can be formed in one piece or in several parts.
- a curvature of the spring rail along the spring rail in an unloaded state is preferably greater than a curvature of a vehicle window surface of a motor vehicle, in particular a vehicle window over which the spring rail is guided in at least one operating state and / or installed state.
- the wiper blade device in particular has the wiper blade adapter on which at least the wiper blade adapter can be arranged to connect the wiper blade to the wiper arm, the wiper blade adapter having at least one base body element that can be arranged on the wiper strip and / or on at least the spring rail of the wiper blade.
- a "wiper blade adapter” is to be understood in particular as an adapter which has a contact area with a wiper blade component and is captively connected to the wiper blade component and is intended to provide a coupling area of the wiper blade component for coupling and / or contacting a structure part, in particular a wiper arm adapter, on a surface to be cleaned, in particular a vehicle window.
- the wiper blade device can preferably be connected to a vehicle, in particular a wiper arm of a vehicle an adapter can be understood that can be connected to a wiper arm component, in particular captive, as well as to the wiper blade adapter, in particular captive, and is provided for the purpose of connecting the wiper blade device, in particular the wiper blade adapter ter with the wiper arm, in particular captive to connect.
- the wiper blade device can preferably be connected to a vehicle, in particular a wiper arm of a vehicle.
- the inventive design of the wiper blade device in particular, improved properties with regard to stability can be achieved.
- advantageous heating of the wiper blade adapter can be achieved.
- the spring rail elements can particularly advantageously be fixed and heated in particular by means of a single component.
- component efficiency can be increased.
- Improved heating properties can advantageously be achieved.
- a wiper blade device with improved properties with regard to suitability for winter can be provided. In particular, this ensures that the wiping water cannot freeze and / or thaw in any water-bearing parts.
- the wiper blade device has the wiper strip which comprises at least the wiper base body and at least the wiper lip.
- the wiper base body could be fixed relative to the first spring rail element with a separate component.
- the wiper base body is at least partially fixed by means of the heating element, at least relative to the first spring rail element. In this way, particularly advantageous properties with regard to the stability of the wiper blade device can be achieved.
- the wiper base body could be fixed at least partially by means of the heating element, at least relative to the second spring rail element.
- the wiper base body is at least partially “fixed relative to the first spring rail element” at least partially by means of the heating element is to be understood in particular as meaning that the heating element prevents a movement, in particular a displacement, of the wiper base body relative to the first spring rail element.
- the heating element in the area of the bridge heating area has at least one stop for the wiper base body along a longitudinal extension of the spring rail.
- a loading movement of the wiper base body is limited in particular along the longitudinal extent of the spring rail by the bridge heating area.
- particularly advantageous properties with regard to stability can be achieved.
- the heating element in the area of the bridge heating area have at least one stop for the wiper base body acting along an extension perpendicular to the longitudinal extension of the spring rail.
- the first spring rail element could be formed in one piece with the second spring rail element. If the first spring rail element is formed separately from the second spring rail element, particularly advantageous properties with regard to the manufacturability of the spring rail elements and / or the wiper strip can be achieved.
- the wiper strip can thereby in particular be formed continuously and can thus be manufactured in a simplified manner.
- the first spring rail element can thereby be designed symmetrically to the second spring rail element.
- the heating element fasten the first spring rail element to the second spring rail element.
- the heating element fixes the first spring rail element relative to the second spring rail element.
- the first spring rail element is connected at least to the second spring rail element by means of the heating element.
- the fact that at least the first spring rail element is "connected" to at least the second spring rail element by means of the heating element should be understood in particular to mean that the first spring rail element is advantageously connected to the further element by means of a material bond, for example by a welding process, by means of the heating element Bonding process, an injection process and / or another process that appears useful to a person skilled in the art.
- the first spring rail element can be designed in one piece with the second spring rail element and / or the heating element. In this way, a higher stability of the spring rail, and in particular of the wiper strip, can be guaranteed in a particularly advantageous manner.
- the heating element in the area of the bridge heating area is designed to be reinforced with respect to at least one surrounding area.
- the heating element in the area of the bridge heating area against at least one surrounding area has, for example, at least 15%, advantageously at least 30%, particularly advantageously at least 50%, preferably at least 100% and particularly preferably at least 200% increased mechanical strength.
- the heating element in the area of the bridge heating area is designed to be more tensile and / or pressure-resistant and / or compression-resistant and / or bending-resistant and / or bending-resistant and / or torsion-resistant and / or shear-resistant compared to at least one surrounding area.
- the heating element in the region of the bridge heating area could have an increased longitudinal extension and / or extension perpendicular to the longitudinal extension compared to at least one surrounding region.
- the heating conductor of the heating element could have an increased material thickness in the area of the bridge heating area.
- a service life of the wiper blade device can be increased as a result. Such a configuration advantageously improves, in particular, the stability properties of the wiper blade device, in particular during a wiping process.
- the heating element in the area of the bridge heating area is thickened compared to the surrounding area.
- This is intended to mean in particular that the heating element has a greater material thickness in the area of the bridge heating area than in an area outside the bridge heating area.
- the material thickness of the heating element in the area of the bridge heating area is higher than the surrounding area, for example by at least 15%, advantageously by at least 30%, particularly advantageously by at least 50%, preferably by at least 100% and particularly preferably by at least 200%.
- Such a design can in particular achieve greater stability without additional components.
- the bridge heating area is arranged in an outer circle area.
- an “outer circular area” should be understood to mean an area which is arranged outside an area of a wiper blade adapter.
- the BrückenMapbe is arranged richly adjacent to an end cap of the wiper blade device.
- an “end cap” is to be understood in particular as a cover component which is provided in particular at least to cover a free end and in particular an end region of the wiper strip. The end cap is provided for a plug-in assembly, in particular together with the wiper strip and / or the spring rail.
- the at least one end cap is arranged on an end region of the at least one wiper strip.
- the wiper blade device preferably has at least two end caps.
- the at least two end caps are each arranged in an area surrounding the opposite end regions of the wiper strip in the main direction of extension.
- the bridge heating could be arranged richly at one end of the wiper strip.
- the spring rail has at least one unheated bridge element which extends at least partially between the spring rail elements.
- the unheated bridge element is in particular connected to the heating element, in particular in a materially bonded manner.
- the unheated bridge element and the heating element are held together by atomic or molecular forces, such as, for example, during soldering, welding, gluing and / or vulcanizing.
- the unheated bridge element can be designed in one piece with the heating element.
- a fixation of the first spring rail element relative to the second spring rail element can advantageously be improved in this way.
- an assembly of the wiper blade device can be simplified as a result.
- the wiper blade device has at least the wiper strip which comprises at least the wiper base body and at least the wiper lip, the bridge element extending over the wiper base body on a side of the wiper lip facing away from the wiper base body, in particular being attached to it.
- the wiper base body can be fixed particularly efficiently relative to the first spring rail element and / or the second spring rail element.
- the bridge Ckenelement placed in an assembled state over the wiper base body and in particular connected to the heating element in a materially bonded manner.
- the invention is also based on a method for assembling a wiper blade device with a wiper strip and with a spring rail which has at least one first spring rail element, at least one second spring rail element and at least one electrical heating element, which is arranged on the first spring rail element and the second spring rail element net is.
- the wiper strip be fixed by means of the heating element.
- the assembly can thereby be simplified and in particular carried out more quickly.
- the wiper blade device according to the invention should not be restricted to the application and embodiment described above.
- the wiper blade device according to the invention can have a number of individual elements, components and units as well as method steps that differs from a number of individual elements, components and units as well as method steps mentioned herein in order to fulfill a function described herein.
- values lying within the stated limits should also be deemed disclosed and can be used as required.
- FIG. 1 shows a schematic representation of a wiper blade with a
- Wiper blade device in a state mounted on a vehicle
- FIG. 3 shows a detail of the wiper blade device with a spring rail and with a bridge heating area in an isometric view
- FIG. 5 shows a flow chart of a method for assembling the wiper blade device with at least a first and a second method step
- FIG. 6 shows a section of a further exemplary embodiment of a
- FIG. 7 shows a sectional view of the wiper blade device of the further exemplary embodiment with a heating element.
- a windshield wiper 10a is shown as part of a motor vehicle 11a.
- the motor vehicle 11a has a window 22a, in particular a front window, the window wiper 10a being provided for cleaning the window 22a.
- the windshield wiper 10a is provided for cleaning another windshield of the motor vehicle 11a.
- the windshield wiper 10a comprises a wiper blade device 12a with a wiper blade 14a, which has a wiper blade adapter 16a, and with a wiper arm 18a, which has a wiper arm adapter 20a.
- the wiper blade device 12a is, in particular special on the wiper arm 18a, rotatably mounted on an outer edge of the disc 22a.
- the wiper arm 18a cannot be lost on the motor vehicle 11a arranged.
- the wiper blade 14a has a contact area with the window 22a.
- the wiper blade 14a is preferably provided to be connected to the wiper arm 18a and / or the wiper arm adapter 20a of the wiper arm 18a.
- the wiper arm adapter 20a has a contact area with the wiper arm 18a and is connected to the wiper arm 18a.
- the wiper arm adapter 20a is preferably provided to provide a coupling area of the wiper arm 18a for coupling and / or contacting with the wiper blade adapter 16a.
- the wiper blade 14a has a wiper strip 24a, which can include channel elements for the conduction of a fluid, which are not shown in FIG. 1 (see FIG. 2).
- the wiper strip 24a has a wiper base body 36a and a wiper lip 38a.
- the wiper blade device 12a has the wiper blade adapter 16a.
- the wiper arm adapter 20a can be arranged on the wiper blade adapter 16a.
- the wiper blade device 12a has a spring rail 28a.
- the spring rail 28a has a first spring rail element 30a, a second spring rail element 32a and an electrical heating element 34a (see FIGS. 3 and 4).
- the heating element 34a is arranged on the first spring rail element 30a and the second spring rail element 32a.
- the heating element 34a has a bridge heating area 26a.
- the bridge heating area 26a extends between the spring rail elements 30a, 32a.
- the first spring rail element 30a is formed separately from the second spring rail element 32a.
- the heating element 34a fastens the first spring rail element 30a to the second spring rail element 32a.
- the wiper blade device 12a has the wiper strip 24a.
- the wiper strip 24a has a wiper base body 36a.
- the wiper strip 24a has the wiper lip 38a.
- the wiper base body 36a is fixed relative to the first spring rail element 30a by means of the heating element 34a.
- the bridge heating area 26a is arranged in an outer circle area 44a.
- the heating element 34a is designed to be reinforced in the area of the bridge heating area 26a compared to a surrounding area.
- the heating element 34a is in Area of the bridge heating area 26a is made thicker than the surrounding area.
- the heating element 34a has a double material thickness in the area of the bridge heating area 26a compared to the surrounding area.
- the heating element 34a has a stop 42a for the wiper base body 36a which acts along a longitudinal extension 40a of the spring rail 28a (see FIG. 3).
- the spring rail 28a has an unheated bridge element 46a.
- the bridge element 46a extends between the spring rail elements 30a, 32a (see FIG. 4).
- the bridge element 46a extends over the wiper base body 36a on a side of the wiper base body 36a facing away from the wiper lip 38a.
- the bridge element 46a is attached to the wiper base body 36a.
- the bridge element 46a is glued to the wiper base body 36a.
- FIG. 5 shows a schematic flow diagram of a method for assembling the wiper blade device 12a.
- the method has at least one first method step 48a and at least one further method step 50a.
- the wiper blade device 12a is provided with the wiper strip 24a and with the spring rail 28a, which has at least the first spring rail element 30a, at least the second spring rail element 32a and at least the electrical heating element 34a.
- the heating element 34a is arranged on the first spring rail element 30a and the second spring rail element 32a.
- the wiper strip 24a is fixed by means of the heating element 34a.
- the wiper blade device 12b of this exemplary embodiment has an unheated bridge element 46b arranged in an outer circular region 44b.
- Bridge element 46b is in particular integrally connected to heating element 34b.
- the bridge element 46b could be formed as an adhesive film glued over a wiper base body 36b of the wiper blade device 12b.
- the bridge element 46b could be welded to the heating element 34b or otherwise materially connected.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ink Jet (AREA)
- Resistance Heating (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019217484.1A DE102019217484A1 (en) | 2019-11-13 | 2019-11-13 | Wiper blade device |
PCT/EP2020/077814 WO2021094035A1 (en) | 2019-11-13 | 2020-10-05 | Wiper blade device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4058332A1 true EP4058332A1 (en) | 2022-09-21 |
Family
ID=72826872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20789539.2A Pending EP4058332A1 (en) | 2019-11-13 | 2020-10-05 | Wiper blade device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4058332A1 (en) |
DE (1) | DE102019217484A1 (en) |
WO (1) | WO2021094035A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2283030A1 (en) * | 1974-08-27 | 1976-03-26 | Sci Sageco | Preventing icing or snow deposits on windscreen wiper blade - by passing electric heating current through support coating |
DE10039290B4 (en) * | 2000-08-11 | 2013-01-31 | Valeo Auto-Electric Wischer Und Motoren Gmbh | wiper device |
DE10234267A1 (en) * | 2002-07-27 | 2004-02-05 | Robert Bosch Gmbh | Wiper blade for cleaning motor vehicle windscreens has a flexible ribbon-type elongated supporting element and an element for heating the wiper blade to ensure movement in winter conditions |
DE102010007557A1 (en) * | 2010-02-10 | 2011-08-11 | Valeo Wischersysteme GmbH, 74321 | Wiper device for vehicle windows and wiper blade with a heating device |
DE102011055948A1 (en) * | 2011-12-01 | 2013-06-06 | Valeo Systèmes d'Essuyage | Wiper blade for cleaning vehicle window, has a heating wire arranged in abutting contact with vehicle window and set facing the side of spring rail in which an opening is formed for rigidly mounting the electrical connector to rail |
-
2019
- 2019-11-13 DE DE102019217484.1A patent/DE102019217484A1/en active Pending
-
2020
- 2020-10-05 EP EP20789539.2A patent/EP4058332A1/en active Pending
- 2020-10-05 WO PCT/EP2020/077814 patent/WO2021094035A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2021094035A1 (en) | 2021-05-20 |
DE102019217484A1 (en) | 2021-05-20 |
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