CN113119916A - Windshield wiper device, wiper blade adapter therefor, and windshield wiper having windshield wiper device - Google Patents

Abstract

The invention relates to a windscreen wiper device having at least one wiper blade adapter, having at least one wiper arm adapter and having at least one connecting unit for the electrical and/or fluidic connection of the wiper arm adapter to the wiper blade adapter, wherein the wiper blade adapter is rotatably arranged about a bearing axis of the wiper arm adapter at the wiper arm adapter, wherein the connecting unit has at least one connecting element on the wiper arm side and at least one connecting element on the wiper blade side. It proposes that: the windscreen wiper device comprises at least one force transmitting unit, which is provided for: when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis, at least the wiper arm-side connecting element and the wiper blade-side connecting element move relative to each other at least substantially parallel to the bearing axis.

Description

Windshield wiper device, wiper blade adapter therefor, and windshield wiper having windshield wiper device

Background

A windshield wiper device has already been proposed with at least one wiper blade adapter, with at least one wiper arm adapter and with at least one connecting unit for the electrical and/or fluidic connection of the wiper arm adapter to the wiper blade adapter, wherein the wiper blade adapter is arranged on the wiper arm adapter so as to be rotatable about a bearing axis of the wiper arm adapter, wherein the connecting unit has at least one connecting element on the wiper arm side and at least one connecting element on the wiper blade side.

Disclosure of Invention

The invention relates to a windscreen wiper device having at least one wiper blade adapter, having at least one wiper arm adapter and having at least one connecting unit for the electrical and/or fluidic connection of the wiper arm adapter to the wiper blade adapter, wherein the wiper blade adapter is rotatably arranged on the wiper arm adapter about a bearing axis of the wiper arm adapter, wherein the connecting unit has at least one connecting element on the wiper arm side and at least one connecting element on the wiper blade side.

It proposes that: the windscreen wiper device comprises at least one force transmitting unit, which is provided for: when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis, at least the wiper arm-side connecting element and the wiper blade-side connecting element are moved relative to one another at least substantially parallel to the bearing axis.

"provided" is to be understood in particular as being specially designed and/or specially equipped. The object (in particular the force transmission unit) is provided for a certain function should be understood in particular as: the object fulfils and/or performs said certain function in at least one of the use states and/or the operational state. "substantially parallel" is to be understood to mean, in particular, a linear, planar or vectorial orientation (in particular vectorial to the direction of movement of the connecting element on the wiper arm side and of the connecting element on the wiper blade side) relative to one another, relative to a further linear, further planar or further vectorial orientation (in particular of the bearing axis); wherein the straight line, the plane or the vector has a deviation, in particular of less than 8 °, advantageously of less than 5 °, and particularly advantageously of less than 2 °, from the other straight line, the other plane or the vector (in particular viewed in at least one projection plane). Particularly preferably, the force transmission unit is provided for: at least a rotational or pivoting movement of the wiper blade adapter relative to the wiper arm adapter is converted relative to one another into a translational movement of the connecting elements of the connecting unit (in particular of the connecting element on the wiper arm side and of the connecting element on the wiper blade side), wherein in particular forces are transmitted. Preferably, the force transmission unit is configured such that: the translational movement is carried out along at least one direction oriented at least substantially parallel to the bearing axis. In particular, the force transmission unit is arranged at least partially on the wiper blade adapter and/or at least partially on the wiper arm adapter. Preferably, the connecting unit has at least one connecting direction, wherein, in particular, for the electrical and/or fluidic connection of the wiper arm adapter to the wiper blade adapter, the connecting element on the wiper arm side and the connecting element on the wiper blade side can be connected to one another by a movement along or counter to the connecting direction. Preferably, the connection unit (in particular the connection element on the wiper arm side and the connection element on the wiper blade side) is designed such that: the connecting directions are oriented relative to one another at least substantially parallel to the bearing axis and/or relative to the direction of the translational movement of the connecting element on the wiper arm side and the connecting element on the wiper blade side. In particular, the bearing axis, the connecting direction and/or the direction of the translational movement are oriented at least substantially perpendicularly with respect to a main extension axis of the wiper arm adapter and/or of the wiper blade adapter. "substantially perpendicularly" is to be understood to mean, in particular, a linear, planar or vectorial orientation (in particular of the bearing axis, of the connecting direction and/or of the direction of the translational movement) relative to another linear, planar or vectorial orientation (in particular relative to a main extension axis of the wiper blade adapter and/or of the wiper arm adapter); wherein the straight line, the plane or the vector and the further straight line, plane or vector (in particular viewed in the projection plane) enclose an angle of 90 ° and have a maximum deviation of in particular less than 8 °, advantageously less than 5 °, and particularly advantageously less than 2 °. The "main axis of extension" of the object (in particular of the wiper blade adapter and/or of the wiper arm adapter) is to be understood as meaning, in particular, an axis running parallel to the longest edge of the cuboid which exactly completely encloses the smallest geometry of the object.

Preferably, a wiper blade, in particular comprising the wiper blade adapter, can be fastened or fixed by a movement about the bearing axis at a wiper arm, in particular comprising the wiper arm adapter. Preferably, the wiper arm adapter comprises at least one bearing element, which extends in particular along the bearing axis. In particular, the wiper blade (in particular of the wiper blade adapter) is mounted on a bearing element so as to be movable or pivotable about the bearing axis relative to the wiper arm (in particular relative to the wiper arm adapter). Preferably, the connecting element on the wiper arm side and the connecting element on the wiper blade side are each designed as a hydraulic and/or electric connecting element. Preferably, the connecting element on the wiper arm side and the connecting element on the wiper blade side are each designed as a plug, as a projection, as a contact element, or the like. In particular, the connecting element on the wiper arm side and the connecting element on the wiper blade side are designed in accordance with one another. For example, the connecting element on the wiper arm side is designed as a hollow-cylindrical projection and the connecting element on the wiper blade side is designed as a connecting tube, wherein in particular the connecting element on the wiper arm side is pushed onto the connecting element on the wiper blade side for a fluidic connection. In an alternative exemplary embodiment, the connection element on the wiper blade side is designed as a male electrical plug (elektrosteker) and the connection element on the wiper arm side is designed as a female electrical plug, wherein in particular the connection element on the wiper blade side is inserted into the connection element on the wiper arm side for an electrical connection. In particular, in the case of a solution in which the connecting unit is provided for the fluidic connection of the wiper arm adapter to the wiper blade adapter, the connecting element is preferably provided for: a wiping fluid, in particular a wiping water mixture, is conducted from a fluid container of the windshield wiper via the wiper arm, in particular the wiper arm adapter, to at least one fluid channel of the wiper blade, in particular of the wiper blade adapter. In particular, in the case of a solution in which the connecting unit is provided for the electrical connection of the wiper arm adapter to the wiper blade adapter, the connecting element is preferably provided for: the current and/or voltage for supplying at least one power consumer unit of the wiper blade, such as, for example, a heating body and/or a luminous element, is transmitted from a supply unit of the windshield wiper via a wiper arm to the wiper blade (in particular the wiper blade adapter) or to the wiper blade (in particular the wiper blade adapter). Other embodiments of the connecting unit (in particular of the connecting element on the wiper arm side and of the connecting element on the wiper blade side) are also conceivable.

By means of the solution according to the invention of the windshield wiper device, the electrical and/or hydraulic connection of the wiper arm adapter to the wiper blade adapter can advantageously be loosened or influenced in any case by the oscillating movement of the wiper blade adapter relative to the wiper arm adapter. For example, when changing the wiper blade, a simple and rapid removal of the wiper blade, in particular of the wiper blade adapter, can advantageously be made possible. In particular, since an advantageously high leverage can be achieved by the wiper blade or wiper arm, an advantageously low applied connecting force for disconnecting the connecting element can be made possible.

Furthermore, it is proposed that: the force transmission unit comprises at least one force transmission element which is designed as a projection (fortsutz) and is arranged on the wiper blade adapter. In particular, since the force transmission element can be configured to be exchangeable together with the wiper blade or wiper blade adapter, advantageously independent of wear or wear of the force transmission unit can be made possible. In particular, the force transmission element can be produced advantageously simply or from inexpensive materials, so that advantageously low production costs can be achieved. The force transmission element "arranged at the wiper blade adapter" is to be understood as: the force transmission element is arranged on at least one component of the wiper blade adapter independently of the state of the wiper blade adapter relative to the wiper arm adapter. Preferably, the force transmission element is arranged on a wiper blade adapter base body of the wiper blade adapter. As an alternative, it is conceivable: the force transmission element is mounted movably, in particular together with the connecting element on the wiper blade side, on the wiper blade adapter. In particular, the force transmission element is connected in a force-fitting and/or form-fitting manner, in particular directly or indirectly, to the connecting element on the wiper blade side. A "non-positive and/or positive connection" is to be understood here to mean, in particular, a detachable connection, wherein the holding force between two components is preferably transmitted by a geometric engagement of the components with one another and/or by frictional forces between the components. Preferably, the force transmission unit comprises at least one contact surface, which is provided for: when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis, the force transmission element interacts with the force transmission element to realize a relative movement of the connecting element on the wiper arm side and the connecting element on the wiper blade side. Preferably, the contact surface is arranged at the wiper arm adapter. In particular, the force transmission element is arranged at a side of the wiper blade adapter facing the wiper arm adapter. Preferably, the force transmission element of the wiper blade adapter, which is designed as a projection, extends at least partially in the direction of the wiper arm adapter. Preferably, the contact surface is arranged at a side of the wiper arm adapter facing the wiper blade adapter. Preferably, the contact surface is at least partially oriented at least substantially parallel to a main extension axis of the wiper arm adapter. It is conceivable that: the contact surface is at least partially formed in a planar and/or at least partially curved manner. In an alternative embodiment of the windscreen wiper device, the force transmission element is arranged on the wiper arm adapter, wherein in particular the contact surface is arranged on the wiper blade adapter.

Furthermore, it is proposed that: the force transmission unit comprises at least one (in particular the aforementioned) force transmission element which is formed integrally with the wiper arm adapter or the wiper blade adapter. An advantageously simple and robust design of the wiper blade adapter or of the wiper arm adapter or of the force transmission unit is possible. An advantageously small number of different components can be realized. Advantageously low production and/or assembly costs can be made possible. "integrally" is to be understood to mean, in particular, a material-bound manner, for example, by a welding process and/or an adhesive process, etc., and particularly advantageously a molded manner, for example, by production from a cast part and/or in a single-or multi-component injection molding process. Preferably, the contact surface is formed as an outer surface of the wiper arm adapter or of the wiper blade adapter.

Furthermore, it is proposed that: the force transmission unit is configured to: in particular, the wiper arm adapter is electrically and/or fluidically disconnected from the wiper blade adapter at least substantially completely when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis. In particular, a simple and rapid disassembly or assembly of the wiper blade, in particular of the wiper blade adapter, is advantageously possible, since the electrical and/or fluidic connection can advantageously be connected or disconnected simultaneously when the wiper blade is rotated about the bearing axis in order to disengage and/or fasten the wiper blade from the wiper arm. In particular, the force transmission unit is provided for: when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis, the connecting elements are moved relative to one another, in particular by at least 5mm, preferably by at least 10mm, particularly preferably by at least 15 mm. The force transmission unit is configured to: such an "essentially complete disconnection" of the electrical and/or fluidic connection of the wiper arm adapter to the wiper blade adapter is to be understood in particular as meaning: the connecting element on the wiper arm side and the connecting element on the wiper blade side are moved away from one another in the connecting direction to such an extent that the contact surfaces (in particular the electrical contact) of the connecting element on the wiper arm side and the connecting element on the wiper blade side are arranged so as to be disconnected from one another; such that the connecting element on the wiper arm side and the connecting element on the wiper blade side are arranged so as to be mutually disconnected, at least viewed substantially perpendicularly to the bearing axis; and/or such that the connecting function of the connecting unit (such as, for example, fastening of the connecting elements to one another, insulation of the electrical contact, sealing, etc.) is disengaged between the connecting element on the wiper arm side and the connecting element on the wiper blade side. Preferably, the connecting element on the wiper arm side and the connecting element on the wiper blade side are movable relative to one another about the bearing axis in at least one disconnected state of the connecting element. In particular, the connecting element on the wiper arm side and the connecting element on the wiper blade side are arranged at a distance from one another in the disconnected state of the connecting element. Preferably, the connecting element on the wiper arm side and the connecting element on the wiper blade side are fixed or fastened relative to one another with respect to a movement about the bearing axis in at least one connected state of the connecting elements,

furthermore, it is proposed that: the force transmission unit comprises at least one (in particular the aforementioned) force transmission element and at least one (in particular the aforementioned) contact surface, which is provided for: co-operating with the force transmission element to effect a relative movement of the connecting element on the wiper arm side and the connecting element on the wiper blade side, wherein the force transmission element and the contact surface are arranged at a distance from one another in at least one assembled state of the wiper blade adapter. It is advantageously possible to prevent wear and/or wear of the force transmission element or of the contact surface in the fitted state of the wiper blade (in particular of the wiper blade adapter), in particular during operation of the windshield wiper. It can be possible to: the force for moving the connecting elements relative to one another is transmitted with a time delay, for example, for the purpose of previously releasing the fastening of the wiper blade adapter to the wiper arm adapter.

Furthermore, it is proposed that: the force transmission unit is configured to: when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis from an angle which is at least greater than 15 °, preferably greater than 20 ° and particularly preferably greater than 25 °, the wiper-arm-side connecting element and the wiper-blade-side connecting element are moved relative to the wiper arm adapter at least substantially parallel to the bearing axis relative to one another. It can be possible to: the force for moving the connecting elements relative to one another is transmitted with a time delay, for example, for the purpose of previously releasing the fastening of the wiper blade adapter to the wiper arm adapter. It is conceivable that: the wiper arm adapter comprises at least one fixing element which is provided for: in the assembled state, the wiper blade adapter is held at the wiper arm adapter (in particular against movement about and/or along the bearing axis). For example, in particular in a Side-Lock connection (Side-Lock-tilting) of the wiper blade adapter to the wiper arm adapter, the fastening element at least partially surrounds or encloses the wiper blade adapter, wherein in particular the wiper blade adapter is arranged along the bearing axis between the fastening element and the wiper arm adapter. In particular, in the assembled state, a movement of the wiper blade adapter relative to the wiper arm adapter is blocked or limited by the fastening element and the wiper arm adapter in a direction oriented at least substantially parallel to the bearing axis. Preferably, in particular in the following technical solutions: in this solution, the force transmission element is formed integrally with the wiper blade adapter or the wiper arm adapter or is arranged directly on the wiper blade adapter or the wiper arm adapter, and the force transmission unit is provided for: as soon as the fastening element is detached from the wiper blade adapter, in particular when the wiper blade adapter is tilted relative to the wiper arm adapter about the bearing axis by at least more than 15 °, preferably more than 20 °, and particularly preferably more than 25 °, the connecting element on the wiper arm side and the connecting element on the wiper blade side are moved relative to one another. Preferably, the main extension axes of the wiper arm adapter and of the wiper blade adapter are oriented at least substantially parallel to one another in the assembled state. Preferably, the angle at least substantially corresponds to the angle of the main extension axes of the wiper arm adapter and of the wiper blade adapter relative to one another, in particular in a state different from the assembled state.

Furthermore, it is proposed that: the force transmission unit is configured to: when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis over an angular range of at most 90 °, preferably at most 80 ° and particularly preferably at most 70 °, the electrical and/or fluidic connection of the wiper arm adapter to the wiper blade adapter is at least substantially completely disconnected relative to the wiper arm adapter. In particular, when the wiper blade adapter is simultaneously disengaged and the fluidic and/or hydraulic connection is disconnected, an advantageously small required space can be achieved when the wiper blade is detached (in particular when the wiper blade is replaced). An advantageously simple and quick disassembly of the wiper blade can be achieved.

Furthermore, it is proposed that: the force transmission unit comprises at least one (in particular the aforementioned) force transmission element having at least one force transmission surface which extends at least partially obliquely to the bearing axis and at least partially obliquely to a main extension axis of the wiper arm adapter and/or of the wiper blade adapter. An advantageously simple and inexpensive solution of the force transmission unit (in particular of the force transmission element) can be achieved, wherein the force transmission element can advantageously be constructed in one piece. An advantageously small number of different components of the windscreen wiper device can be realized. Advantageously low production and/or assembly costs can thereby be achieved. By "obliquely" should be understood an orientation which differs from a parallel orientation and a perpendicular orientation. In particular, the force transmission surface has an angle from an angular range, in particular between 85 ° and 5 °, preferably between 75 ° and 15 °, preferably between 65 ° and 25 ° and particularly preferably between 55 ° and 35 °, with respect to the bearing axis. In particular, the force transmission surface has an angle from an angular range, in particular between 85 ° and 5 °, preferably between 75 ° and 15 °, preferably between 65 ° and 25 ° and particularly preferably between 55 ° and 35 °, with respect to a main extension axis of the wiper arm adapter and/or of the wiper blade adapter. It is conceivable that: the force transmission surface is configured as a flat surface, in particular along a main extension axis of the force transmission element. It is also conceivable: the force transmission surface is at least partially curved, wherein an angle between the force transmission surface and the bearing axis or a main extension axis of the wiper arm adapter and/or of the wiper blade adapter varies along the main extension axis of the force transmission element. Preferably, the angle between the force transmission surface and the bearing axis or the main extension axis of the wiper arm adapter and/or of the wiper blade adapter corresponds along the main extension axis of the force transmission element to an angle from the angle range, in particular between 85 ° and 5 °, preferably between 75 ° and 15 °, preferably between 65 ° and 25 ° and particularly preferably between 55 ° and 35 °. Preferably, the force transmitting element is arranged for: when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis, a relative movement of the connecting elements (in particular of the wiper arm-side connecting element and of the wiper blade-side connecting element) is achieved by the force transmission surfaces moving relative to one another along the wiper arm adapter (in particular along the contact surfaces). In particular, the force transmission surface is provided for: a force is applied via the contact surface when the wiper blade adapter is moved relative to the wiper arm adapter about the bearing axis. In particular, it is preferred that the force acting from the contact surface on the force transmission surface acts at least partially on the force transmission element in a direction oriented at least substantially parallel to the bearing axis, in particular by an oblique orientation of the force transmission surface relative to a main extension axis of the wiper arm adapter and of the wiper blade adapter. Preferably, the force transmitting element is arranged for: the force acting on the force transmission surface from the contact surface is transmitted at least to the connecting element on the wiper blade side or to the connecting element on the wiper arm side.

Furthermore, it is proposed that: the connecting element on the wiper arm side is mounted movably on the wiper arm adapter in a direction oriented at least substantially parallel to the bearing axis; and/or the connecting element on the wiper blade side is mounted movably at the wiper blade adapter in a direction oriented at least substantially parallel to the bearing axis, wherein the force transmission unit is provided for: moving the connecting element on the wiper arm side relative to the wiper arm adapter; and/or to move the connecting element on the wiper blade side relative to the wiper blade adapter. In particular because it is possible to achieve: only the wiper arm-side connecting element and/or the wiper blade-side connecting element must be moved by the force for disconnecting the hydrodynamic and/or hydraulic connection by means of the force transmission unit, so that a force transmitted to the connecting unit (in particular the wiper arm-side connecting element and/or the wiper blade-side connecting element) for disconnecting the hydrodynamic and/or hydraulic connection can advantageously be designed to be small. Preferably, the wiper blade adapter comprises at least one bearing unit, which is provided for: the connecting element on the wiper blade side is mounted so as to be movable relative to the wiper blade adapter base body. Preferably, the support unit is configured to: the connecting element on the wiper blade side is at least partially restricted from moving in a direction oriented at least substantially parallel to the bearing axis. The support unit is provided in particular for: the connecting element on the wiper blade side is held in at least one position arranged on the wiper blade adapter base body, in particular in at least one bearing recess (Lagerausnehmung) of the bearing unit. For example, the support unit (in particular the at least one support element thereof) is configured as a recess, groove, runner (Schiene), projection or the like. In particular, the bearing unit (in particular the bearing element) is designed in accordance with the connecting element on the wiper blade side. Preferably, the bearing unit (in particular the bearing element) is arranged in particular directly on the wiper blade adapter base body. Particularly preferably, the bearing unit (in particular the bearing element) is formed integrally with the wiper blade adapter base body. It is also conceivable: the connecting element on the wiper blade side is configured to be removable from the wiper blade adapter base by a movement in at least one direction, in particular in a direction oriented at least substantially parallel to the bearing axis. Alternatively or additionally, in particular in the case of an embodiment in which the force transmission element is arranged on the wiper arm adapter, it is conceivable for: the wiper arm adapter comprises at least one bearing unit, which is provided for: the connecting element on the wiper arm side is mounted so as to be movable relative to the wiper arm adapter base body.

Furthermore, a wiper blade adapter of a windshield wiper device according to the invention is proposed.

By means of the inventive solution of the wiper blade adapter, the electrical and/or hydraulic connection to the wiper arm adapter can advantageously be loosened or influenced in any case by a tilting movement of the wiper blade adapter relative to the wiper arm adapter. For example, when changing the wiper blade, a simple and rapid removal of the wiper blade, in particular of the wiper blade adapter, can advantageously be made possible. In particular, since an advantageously high leverage can be achieved by the wiper blade or wiper arm, an advantageously low applied connecting force for disconnecting the connecting element can be made possible.

Furthermore, a windshield wiper having at least one windshield wiper device according to the invention is proposed.

By means of the solution according to the invention of the windshield wiper, the electrical and/or hydraulic connection of the wiper arm adapter to the wiper blade adapter can advantageously be loosened or influenced in any case by a pivoting movement of the wiper blade adapter relative to the wiper arm adapter. For example, when changing the wiper blade, a simple and rapid removal of the wiper blade, in particular of the wiper blade adapter, can advantageously be made possible. In particular, since an advantageously high leverage can be achieved by the wiper blade or wiper arm, an advantageously low applied connecting force for disconnecting the connecting element can be made possible.

The windshield wiper device according to the invention, the wiper blade adapter according to the invention and/or the windshield wiper according to the invention should not be limited to the uses and embodiments described above. In particular, in order to satisfy the mode of action described here, the windshield wiper device according to the invention, the wiper blade adapter according to the invention and/or the windshield wiper according to the invention can have a number which differs from the number mentioned here of the individual elements, components and units. Furthermore, in the value ranges specified in the present disclosure, values lying within the mentioned boundaries should also be regarded as being disclosed and can be used arbitrarily.

Drawings

Further advantages result from the following description of the figures. Embodiments of the invention are shown in the drawings. The figures, description and claims contain many combinations of features. The person skilled in the art will also consider the features individually as appropriate and conclude to useful further combinations.

Wherein:

fig. 1 shows a schematic view of a windscreen wiper device according to the invention with a windscreen wiper device according to the invention in the assembled state; and is

Fig. 2 shows a detailed view of a windscreen wiper device according to the invention in the region of a wiper blade adapter according to the invention of the windscreen wiper device according to the invention.

Detailed Description

Fig. 1 shows a windshield wiper 10 in the assembled state on a glass 12. The pane 12 is designed in particular as a windshield of a vehicle, which is not shown in fig. 1. It is also conceivable: the windshield wiper 10 is arranged on a glass 12 of a stationary object, such as, for example, a building or another forward movement. The windshield wiper 10 includes a wiper arm 14 including a wiper arm adapter 16, a wiper blade 18 including a wiper blade adapter 20, a drive unit 22, and a supply unit 24. The supply unit 24 is designed as a battery. Other embodiments of the supply unit 24 are also conceivable, for example as a fluid container with a pump. A supply unit 24, which is designed as a battery, is provided for supplying power to a power consumer unit 26, which is designed as a heating body, of the wiper blade 18. Other embodiments of the power consumer unit 26 are also conceivable, for example as a light-emitting element and/or as a controllable valve. Preferably, the drive unit 22 has a drive shaft 28 which is driven by a drive element of the drive unit 22 (which drive element is not shown in particular in fig. 1), wherein in particular the wiper arm 14 is fastened at the drive shaft 28 and can be moved along the surface of the glass 12 by means of the drive shaft 28. The wiper blade 18 comprises a wiper strip 30 and the electrical consumer unit 26 is provided for heating at least one fluid-conducting channel of the wiper strip 30, which is not shown in the drawing. The wiper arm 14 comprises the wiper arm adapter 16 and a wire element 32 for the electrical connection of the supply unit 24 to the wiper blade 18.

The wiper blade 18 can be fastened to the wiper arm 14, in particular the wiper arm adapter 16, by means of a wiper blade adapter 20. In particular, the wiper blade 18 is mounted by means of the wiper blade adapter 20 and the wiper arm adapter 16 so as to be rotatable or pivotable relative to the wiper arm 14 in at least one operating state of the windshield wiper 10 (in particular for mounting or dismounting the wiper blade 18). The wiper arm 14 has a bearing element 34, in particular designed as a bearing cap screw (Lagerbolzen), and a fastening element 36, in particular designed as a retaining finger (Haltefinger). The fixing element 36 is provided in particular for: the wiper blade 18, in particular the wiper blade adapter 20, is fixed or held in at least one position relative to the wiper arm 14, in particular the wiper arm adapter 16. Preferably, the fixing element 36 is provided for: in at least one assembled state of the wiper blade 18, the wiper blade adapter 20 (in particular the wiper blade adapter base 38 of the wiper blade adapter 20) is at least partially surrounded. In particular, the wiper blade 18 (in particular the wiper blade adapter 20) is mounted on the wiper arm adapter 16 so as to be movable, in particular pivotable, about a bearing axis 40 of the wiper arm adapter 16 by means of a bearing element 34 of the wiper arm adapter 16.

The windshield wiper 10 has a windshield wiper device 42, which windshield wiper device 42 comprises the wiper blade adapter 20 and the wiper arm adapter 16. The windshield wiper device 42 comprises a connecting unit 44 for electrically connecting the wiper arm adapter 16 to the wiper blade adapter 20, wherein the wiper blade adapter 20 is arranged at the wiper arm adapter 16 so as to be pivotable or pivotable about the bearing axis 40. The connection unit 44 is configured to: the wire element 32 of the wiper arm 14 is electrically connected to the power consumer unit 26 and/or to a wire element of the wiper blade 18 (which is not shown in particular in the drawing). The connecting unit 44 comprises a connecting element 46 on the wiper arm side and a connecting element 48 on the wiper blade side, which are connected to one another, in particular for electrically connecting the wiper arm adapter 16 to the wiper blade adapter 20. The connecting elements 46, 48 are designed as electrical connectors, wherein the connecting element 48 on the wiper blade side is designed as a male connector and the connecting element 46 on the wiper arm side is designed as a female connector. In particular, the connection unit 44 (in particular the connection elements 46, 48) is shown in the connected state in fig. 2. In particular, the wiper arm-side connecting element 46 is inserted in the connected state onto the wiper blade-side connecting element 48 for the electrical connection between the wiper arm adapter 16 and the wiper blade adapter 20. The connecting elements 46, 48 are provided for: the current and/or the voltage for supplying the power consumer unit 26 of the wiper blade 18 is transmitted from the supply unit 24 of the windshield wiper 10 via the wiper arm 14 (in particular the line element 32) to the wiper blade 18 (in particular the wiper blade adapter 20) or to the wiper blade 18 (in particular the wiper blade adapter 20). Other embodiments of the connecting unit 44 are also conceivable, for example for the fluid-technical connection of the wiper arm adapter 16 to the wiper blade adapter 20, preferably for the guidance of a fluid. In an alternative embodiment of the connection unit 44, the connection units 46, 48 are preferably designed as fluid connection elements, for example as connection tubes (anshlussttzen), pipe projections (Rohrforts ä tze), hoses (Schl ä uche) or the like.

The windscreen wiper device 42 comprises a force transmitting unit 50, which is arranged for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40, at least the wiper arm-side connecting element 46 and the wiper blade-side connecting element 48 are moved relative to one another at least substantially parallel to the bearing axis 40. Particularly preferably, the force transmission unit 50 is provided for: at least a rotational movement or a swiveling movement of the wiper blade adapter 20 relative to the wiper arm adapter 16 about the bearing axis 40 is converted into a translational movement of the connecting elements 46, 48 of the connecting unit 44 (in particular of the connecting element 46 on the wiper arm side and of the connecting element 48 on the wiper blade side), wherein in particular forces are transmitted. The force transmission unit 50 is configured such that: the translational movement is carried out along at least one direction oriented at least substantially parallel to the bearing axis 40. The force transmission unit 50 is arranged at least partially at the wiper blade adapter 20 and at least partially at the wiper arm adapter 16. The connecting unit 44 has a connecting direction 52, wherein, in particular, for the electrical connection of the wiper arm adapter 16 to the wiper blade adapter 20, the connecting element 46 on the wiper arm side and the connecting element 48 on the wiper blade side can be connected to one another by a movement along or counter to the connecting direction 52. The connection unit 44 (in particular the connecting element 46 on the wiper arm side and the connecting element 48 on the wiper blade side) is designed in such a way that: the connecting directions 52 are oriented at least substantially parallel to the bearing axis 40 and relative to one another with respect to the direction of the translational movement of the connecting element 46 on the wiper arm side and the connecting element 48 on the wiper blade side. The bearing axis 40, the connecting direction 52 and the direction of the translational movement are oriented at least substantially perpendicularly to the main extension axes 54, 56 of the wiper arm adapter 16 and of the wiper blade adapter 20. In particular, the force transmission unit 50 is provided for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40, the wiper-blade-side connecting element 48 is moved relative to the wiper-arm-side connecting element 46, in particular by at least 5mm, preferably by at least 10mm, particularly preferably by at least 15 mm.

The force transmission unit 50 is provided for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40, the wiper arm adapter 16 is electrically disconnected from the wiper blade adapter 20. The solution of the force transmission unit 50 is also conceivable, wherein the force transmission unit 50 is provided for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40, the wiper arm adapter 16 is disconnected from the wiper blade adapter 20 in terms of fluid. In particular, it is conceivable: the force transmission unit 50 is provided for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40, the wiper arm adapter 16 is disconnected from the wiper blade adapter 20 in terms of fluid.

The windscreen wiper device 42 is shown in a detailed view in fig. 2. The force transmission unit 50 comprises a force transmission element 58 which is designed as a projection and is arranged on the wiper blade adapter 20. The force transmission element 58 is arranged on the wiper blade adapter base 38 of the wiper blade adapter 20. As an alternative, it is conceivable: the force transmission element 58 is mounted movably, in particular together with the wiper blade-side connecting element 48, on the wiper blade adapter 20. The force transmission element 58 is connected by the wiper blade adapter base 38 to the wiper blade-side connecting element 48 in a non-positive and/or positive manner. The force transfer unit 50 comprises a contact surface 60, which contact surface 60 is arranged for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40, a relative movement relative to the wiper arm-side connecting element 46 and the wiper blade-side connecting element 48 interacts with the force transmission element 58. The contact surface 60 is arranged at the wiper arm adapter 16. The force transmission element 58 is arranged on the side of the wiper blade adapter 20 (in particular of the wiper blade adapter base 38) facing the wiper arm adapter 16. The contact surface 60 is arranged on the side of the wiper arm adapter 16 facing the wiper blade adapter 20. The contact surface 60 is at least partially oriented at least substantially parallel to the main extension axis 54 of the wiper arm adapter 16. The contact surface 60 is curved, as viewed along the main extension axis 54 of the wiper arm adapter 16. The force transmission element 58 is formed in one piece with the wiper blade adapter 20. The contact surface 60 is formed as an outer surface of the wiper arm adapter 16, in particular as a single piece with the wiper arm adapter 16. The force transmission element 58 and the contact surface 60 are arranged at a distance from one another in at least one assembled state of the wiper blade adapter 20 (in particular in the state shown in fig. 2).

The force transmission element 58 has a force transmission surface 62, which surface 62 extends at least partially at an angle to the bearing axis 40 and at an angle to the main extension axis 54, 56 of the wiper arm adapter 16 and/or of the wiper blade adapter 20. The force transmission element 58 is provided for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40, a relative movement relative to the wiper blade adapters 46, 48 (in particular of the wiper arm-side connecting element 46 and of the wiper blade-side connecting element 48) is moved relative to one another along the wiper arm adapter 16 (in particular along the contact surface 60) by means of the force transmission surface 62. The force transmission surface 62 is provided for: a force is exerted via the contact surface 60 during a movement of the wiper blade adapter 20 relative to the wiper arm adapter 16 about the bearing axis 40. The force transmission element 58 is provided for: the force acting on the force transmission surface 62 from the contact surface 60 is transmitted at least to the wiper blade-side connecting element 48 or to the wiper arm-side connecting element 46. The force transmission surface 62 has an angle 74 from an angular range, in particular between 85 ° and 5 °, preferably between 75 ° and 15 °, preferably between 65 ° and 25 ° and particularly preferably between 55 ° and 35 °, with respect to the bearing axis 40. The force transmission surface 62 has an angle 76 from an angular range, in particular between 85 ° and 5 °, preferably between 75 ° and 15 °, preferably between 65 ° and 25 ° and particularly preferably between 55 ° and 35 °, with respect to the main extension axis 54, 56 of the wiper arm adapter 16 and of the wiper blade adapter 20. The force transmission surface 62 is designed as a planar surface, in particular along a main axis of extension 72 of the force transmission element 62. It is also conceivable: the force transmission surface 62 is at least partially of curved design, wherein the angles 74, 76 between the force transmission surface 62 and the bearing axis 40 or the main extension axes 54, 56 of the wiper arm adapter 16 and/or of the wiper blade adapter 20 vary along the main extension axis 72 of the force transmission element 62.

The force transmission unit 50 is provided for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40 from an angle 64 (which is at least greater than 15 °, preferably greater than 20 °, and particularly preferably greater than 25 °), the wiper-arm-side connecting element 46 and the wiper-blade-side connecting element 48 are moved relative to the wiper arm adapter 16 relative to one another at least substantially parallel to the bearing axis 40. The fastening element 36 at least partially surrounds the wiper blade adapter 20, in particular when the wiper blade adapter 20 is connected to the wiper arm adapter 16 in a Side-Lock connection (Side-Lock-locking), wherein in particular the wiper blade adapter 20 is arranged along the bearing axis 40 between the fastening element 36 and the wiper arm adapter 16. In the assembled state (see fig. 2), a movement of the wiper blade adapter 20 relative to the wiper arm adapter 16 in a direction oriented at least substantially parallel to the bearing axis 40 is blocked or limited by the fastening element 36 and the wiper arm adapter 16. In particular, the angle 64 corresponds to a tilting movement of the wiper blade adapter 20 relative to the wiper arm adapter 16 about the bearing axis 40 for disengaging the fastening element from the wiper blade adapter 20. The force transmission unit 50 is provided for: as soon as the fastening element 36 is detached from the wiper blade adapter 20, the wiper arm-side connecting element 46 and the wiper blade-side connecting element 48 are moved relative to one another, in particular when the wiper blade adapter 20 is tilted relative to the wiper arm adapter 16 about the bearing axis 40 by an angle 64 which is at least greater than 15 °, preferably greater than 20 ° and particularly preferably greater than 25 °. Preferably, the main extension axes 54, 56 of the wiper arm adapter 16 and of the wiper blade adapter 20 are oriented at least substantially parallel to one another in the assembled state. Preferably, in particular in a state different from the assembled state, the angle 64 at least substantially corresponds to the angle 64 of the main extension axes 54, 56 of the wiper arm adapter 16 and of the wiper blade adapter 20 relative to one another. The force transmission unit 50 is provided for: when the wiper blade adapter 20 is moved relative to the wiper arm adapter 16 about the bearing axis 40 beyond an angular range 66 of at most 90 °, preferably at most 80 °, and particularly preferably at most 70 °, the electrical connection of the wiper arm adapter 16 to the wiper arm adapter 20 is at least substantially completely disconnected relative to the wiper arm adapter 16.

In alternative embodiments of the windshield wiper system 42, it is conceivable to: the wiper arm-side connecting element 46 is mounted movably on the wiper arm adapter 16 in a direction oriented at least substantially parallel to the bearing axis 40 and/or the wiper blade-side connecting element 48 is mounted movably on the wiper blade adapter 20 in a direction oriented at least substantially parallel to the bearing axis 40; wherein, in particular, the force transmission unit 50 is provided for: the wiper-arm-side connecting element 46 is moved relative to the wiper arm adapter 16 and/or the wiper-blade-side connecting element 48 is moved relative to the wiper blade adapter 20. In an alternative embodiment of the windshield wiper device 42, the force transmission element 58 is preferably arranged on the wiper arm-side connecting element 46 or on the wiper blade-side connecting element 48. Preferably, in an alternative embodiment of the windshield wiper device 42, the contact surface 60 is arranged on the wiper arm adapter 16, the wiper blade adapter 20, the wiper arm-side connecting element 46 or the wiper blade-side connecting element 48, which is designed independently of the force transmission element 58, in particular in the detached state. It is conceivable that the wiper blade adapter 20 and/or the wiper arm adapter 16 comprise at least one bearing unit 68, which bearing unit 68 is provided for: the connecting element 48 on the wiper blade side or the connecting element 46 on the wiper arm side is movably supported, wherein, in particular, the supporting unit 68 is only schematically illustrated in fig. 2. Preferably, the supporting unit 68 is provided for: a movement of the wiper-blade-side connecting element 48 or of the wiper-arm-side connecting element 46 in a direction oriented at least substantially parallel to the bearing axis 40 is at least partially limited. The support unit 68 is provided in particular for: the wiper-blade-side connecting element 48 or the wiper-arm-side connecting element 46 is held in at least one position arranged on the wiper blade adapter base 38 or the wiper arm adapter 16, in particular in at least one bearing recess (lager ausnehmung) 70 of the bearing unit 68.

Claims (11)

1. A windscreen wiper device having at least one wiper blade adapter (20), having at least one wiper arm adapter (16) and having at least one connecting unit (44) for the electrical and/or fluidic connection of the wiper arm adapter (16) to the wiper blade adapter (20), wherein the wiper blade adapter (20) can be arranged rotatably at the wiper arm adapter (16) about a bearing axis (40) of the wiper arm adapter (16), wherein the connecting unit (44) has at least one connecting element (46) on the wiper arm side and at least one connecting element (48) on the wiper blade side, characterized by at least one force transmission unit (50) which is provided for: when the wiper blade adapter (20) is moved relative to the wiper arm adapter (16) about the bearing axis (40), at least the wiper arm-side connecting element (46) and the wiper blade-side connecting element (48) are moved relative to one another at least substantially parallel to the bearing axis (40).

2. A windscreen wiper device according to claim 1, wherein said force transmitting unit (50) comprises at least one force transmitting element (58) configured as a protrusion and arranged at said wiper blade adapter (20).

3. A windscreen wiper device according to claim 1 or 2, wherein the force transmitting unit (50) comprises at least one force transmitting element (58) which is constructed integrally with the wiper arm adapter (16) or wiper blade adapter (20).

4. A glass wiper device according to any one of the preceding claims, characterized in that the force transmitting unit (50) is provided for: when the wiper blade adapter (20) is moved relative to the wiper arm adapter (16) about the bearing axis (40), the wiper arm adapter (16) is disconnected from the wiper blade adapter (20) electrically and/or fluidically.

5. A glass wiper device according to any one of the preceding claims, characterized in that the force transmitting unit (50) comprises at least one force transmitting element (58) and at least one contact surface (60) provided for: interacts with the force transmission element (58) in order to achieve a relative movement of the connecting element (46) on the wiper arm side and the connecting element (48) on the wiper blade side, wherein the force transmission element (58) and the contact surface (60) are arranged at a distance from one another in at least one assembled state of the wiper blade adapter (20).

6. A glass wiper device according to any one of the preceding claims, characterized in that the force transmitting unit (50) is provided for: when the wiper blade adapter (20) is moved relative to the wiper arm adapter (16) about the bearing axis (40) from an angle (64) of at least more than 15 °, the wiper-arm-side connecting element (46) and the wiper-blade-side connecting element (48) are moved relative to the wiper arm adapter (16) at least substantially parallel to the bearing axis (40) relative to one another.

7. A glass wiper device according to claim 4, characterized in that the force transmitting unit (50) is arranged for: when the wiper blade adapter (20) is moved relative to the wiper arm adapter (16) about the bearing axis (40) over an angular range (66) of up to 90 °, the electrical and/or fluidic connection of the wiper arm adapter (16) to the wiper blade adapter (20) is at least substantially completely disconnected relative to the wiper arm adapter (16).

8. A windscreen wiper device according to any of the preceding claims, wherein the force transmitting unit (50) comprises at least one force transmitting element (58) having at least one force transmitting surface (62), which force transmitting surface (62) extends at least partially obliquely with respect to the bearing axis (40) and at least partially obliquely with respect to a main extension axis (54) of the wiper arm adapter (16) and/or of the wiper blade adapter (20).

9. A windscreen wiper device according to any of the preceding claims, wherein said connecting element (46) on the wiper arm side is movably supported at said wiper arm adapter (16) in a direction oriented at least substantially parallel to said supporting axis (40) and/or said connecting element (48) on the wiper blade side is movably supported at said wiper blade adapter (20) in a direction oriented at least substantially parallel to said supporting axis (40); wherein the force transmission unit (50) is provided for: the wiper-arm-side connecting element (46) is moved relative to the wiper arm adapter (16) and/or the wiper-blade-side connecting element (48) is moved relative to the wiper blade adapter (20).

10. A wiper blade adapter of a windscreen wiper device according to at least claim 2.

11. A windscreen wiper device with at least one windscreen wiper device (42) according to any of the preceding claims 1 through 9.

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