CN113119915A - Wiper device and glass wiper - Google Patents

Abstract

The invention relates to a wiper device, comprising: at least one wiper blade adapter (16 a; 16 b; 16 c) having at least one fluid connecting element (34 a; 34 b; 34 c); at least one wiper arm adapter (12 a; 12 b; 12 c); at least one cover unit (28 a; 28 b; 28 c) which is connected to the wiper arm adapter (12 a; 12 b; 12 c) in a manner such that it can pivot about a pivot axis (32 a; 32 b; 32 c) relative to the wiper arm adapter (12 a; 12 b; 12 c); and at least one fluid coupling element (36 a; 36 b; 36 c) for fluid connection with the at least one fluid connecting element (34 a; 34 b; 34 c). It is proposed that at least one fluid coupling element (36 a; 36 b; 36 c) is mounted on the at least one cover unit (28 a; 28 b; 28 c) in a movable manner relative to the at least one cover unit (28 a; 28 b; 28 c).

Description

Wiper device and glass wiper

Technical Field

The present invention relates to a wiper device and a windshield wiper.

Background

A wiper device has been proposed, which has: at least one wiper blade adapter having at least one fluid connecting element; at least one wiper arm adapter; at least one cover unit which is pivotably connected to the wiper arm adapter about a pivot axis relative to the wiper arm adapter; and at least one fluid coupling element to fluidly connect with the at least one fluid connecting element.

Disclosure of Invention

The invention relates to a wiper device, comprising: at least one wiper blade adapter having at least one fluid connecting element; at least one wiper arm adapter; at least one cover unit which is pivotably connected to the wiper arm adapter about a pivot axis relative to the wiper arm adapter; and at least one fluid coupling element to fluidly connect with the at least one fluid connecting element.

It is proposed that at least one fluid coupling element is mounted on the at least one cover unit in a movable manner relative to the at least one cover unit.

"wiper device" shall preferably mean at least one part of a glass wiper, preferably an underlying component. The wiper device may preferably also comprise a complete windshield wiper, in particular with a wiper blade. The wiper device is preferably provided for use at a vehicle. The wiper device is preferably provided, in particular as part of a windshield wiper, for cleaning a surface, preferably a glass, on a vehicle. The wiper device is preferably coupled to a vehicle, preferably a wiper arm of the vehicle, for cleaning the vehicle window. "set" shall preferably mean specially set, specially designed and/or specially equipped. An object is provided for a specific function, which preferably shall mean that the object fulfills and/or carries out this specific function in at least one application state and/or operating state. The term "operating state" shall preferably mean a state in which the wiper device is ready for operation and/or is at least coupled to a wiper arm and/or a wiper blade and/or is in a wiping operation in which a wiper strip unit of the wiper device, in particular of a windshield wiper, is preferably guided over a vehicle window and in this case advantageously rests against the vehicle window.

The wiper arm adapter preferably has a longitudinal axis which is oriented at least substantially parallel to the longitudinal axis of the wiper arm. The "longitudinal axis" of the object should preferably be an axis which is parallel to the longest edge of the smallest geometrical cuboid which also completely surrounds the object. The longitudinal axis preferably extends through the geometric midpoint of the cuboid. "substantially parallel" shall preferably mean an orientation of a direction relative to a reference direction, in particular in a plane, wherein the direction has a deviation relative to the reference direction of, in particular, less than 8 °, advantageously less than 5 °, and particularly advantageously less than 2 °. The wiper arm adapter is preferably connected, in particular in a loss-free, preferably integral manner, to the wiper arm. "integral" shall preferably mean at least materially joined, for example by a welding process, a bonding process, a sputtering process and/or other processes considered reasonable by the person skilled in the art, and/or advantageously integrally formed, for example by production from a casting and/or by production in a single-component or multi-component injection molding process and advantageously from the production of a single blank. The wiper arm adapter is preferably designed as a side lock adapter. The wiper arm adapter preferably comprises at least one pin element. The at least one pin element is preferably provided for mechanically coupling the wiper blade adapter to the wiper arm adapter, in particular for pivotably mounting the wiper blade adapter, in particular at the wiper arm adapter. The at least one pin element preferably defines a coupling pivot axis. The coupling pivot axis is preferably oriented at least substantially perpendicularly to the longitudinal axis of the wiper arm adapter, in particular the longitudinal axis of the wiper arm. The expression "substantially perpendicular" should preferably define an orientation of a direction relative to a reference direction, wherein the direction and the reference direction, in particular viewed in the projection plane, enclose an angle of 90 ° and the angle has a maximum deviation, in particular of less than 30 °, advantageously of less than 20 ° and particularly advantageously of less than 15 °. The longitudinal axis of the pin element is preferably oriented substantially perpendicularly to the longitudinal axis of the wiper arm adapter. Preferably, the longitudinal axis of the pin element is oriented substantially parallel to the transverse axis of the wiper arm adapter. The coupling pivot axis is preferably oriented parallel to a transverse axis of the cover unit, in particular of the wiper arm adapter, in particular of the wiper arm. The wiper arm adapter preferably has a holding bracket. The longitudinal axis of the at least one holding bow is preferably oriented parallel to the transverse axis of the cover unit.

The wiper blade adapter preferably has at least one mechanical connecting element for connecting to the wiper arm adapter, in particular a pin element of the wiper arm adapter. The mechanical connecting element of the wiper blade adapter is preferably provided for receiving at least one pin element of the wiper arm adapter. The at least one mechanical connecting element is preferably provided for pivotably mounting the at least one pin element. The at least one mechanical connecting element preferably has at least one recess for accommodating the at least one pin element. The at least one coupling pivot axis preferably extends, in particular centrally, through the at least one recess of the mechanical connecting element. At least one wiper blade adapter, in particular at least one wiper blade, is preferably mounted on the at least one wiper arm adapter so as to be pivotable about a coupling pivot axis, in particular relative to the at least one wiper arm.

The covering unit preferably comprises a housing element which is provided to cover the wiper blade adapter, in particular the wiper arm adapter, at least in sections, preferably at least in large sections. The at least one housing element is preferably provided for covering at least the at least one fluidic coupling element and the at least one fluidic connecting element. The housing element is formed in particular by a shell-shaped cover. The cover unit can preferably be connected to the wiper arm, in particular to the wiper arm adapter, without being lost. The pivot axis is preferably oriented parallel to the coupling pivot axis. The pivot axis is preferably spaced from the coupling pivot axis. The pivot axis and the coupling pivot axis in particular have two different axes. The fluid coupling element is preferably connected to the housing element so as to be movable relative to the housing element, in particular so as to be movable transversely. The cover unit can have a frame unit, which can be provided for a particularly movable connection to the housing element. The fluid coupling element can be connected to the frame unit in a movable, in particular laterally movable manner relative to the frame unit. The fluid coupling element can be connected to the frame unit in a movable, in particular laterally displaceable manner, and in particular directly, not to the at least one housing element. The at least one fluidic coupling element can be connected to the frame unit in a similar manner to the housing element.

The at least one fluid connecting element is preferably designed as a socket, in particular a plug adapter, of the wiper blade adapter. The connecting direction, in particular the insertion direction, of the at least one fluid connecting element is preferably oriented at least in the connected state, preferably perpendicular to a longitudinal axis of the wiper arm adapter, in particular of the wiper arm, in particular of the wiper blade adapter, in particular of the wiper blade. The at least one fluid connecting element is preferably configured to be connectable to and/or detachable from the at least one fluid coupling element as the covering unit is pivoted, in particular about the pivot axis. The fluid connecting element preferably forms at least one fluid inlet at the wiper blade adapter. At least one, preferably at least two, in particular fluidically separate fluid channels preferably extend through the wiper blade adapter, in particular for operating two wiping directions of the wiper blade with washing water. The wiper blade adapter, in particular each fluid channel, is preferably fluidically connected to a channel unit of the wiper strip unit and/or of the wind deflector unit. The wiper blade adapter preferably has at least one fluid outlet element, in particular at least one fluid outlet nozzle.

The fluidic coupling element is preferably designed as a plug, in particular as a plug-in adapter. The fluid coupling element is preferably connected to at least one fluid supply line of the wiper arm. The at least one fluid coupling element is preferably configured as an end of the at least one fluid supply line of the wiper arm. The at least one fluidic coupling element preferably defines at least one fluid channel which is configured, in particular, curved, preferably at least 45 °, particularly preferably at least 90 °. The at least one fluid coupling element connection direction, in particular the insertion direction, is preferably oriented at least in the connected state, preferably perpendicular to a longitudinal axis of the cover unit, in particular of the wiper arm adapter, in particular of the wiper arm, in particular of the wiper blade adapter. The at least one fluid coupling element is preferably configured to be connectable to and/or detachable from the at least one fluid connecting element as the covering unit is pivoted, in particular about the pivot axis. The fluid coupling element can preferably be connected to the cover unit, in particular to the housing element, at least by a rotation of at least 2 °, preferably at least by a rotation of at least 5 °, particularly preferably at least by a rotation of 10 °, and very particularly preferably at least by a rotation of 15 °.

The design according to the invention of the wiper device makes it possible to achieve a fluid coupling element that can be moved advantageously. In particular, a wiper blade which can be advantageously moved can be achieved. An advantageous movability, in particular pivotability, of the pivotably mounted wiper blade at the wiper arm adapter, in particular at the side lock adapter, can be achieved. In particular, a wiper device for a vehicle window, in particular curved or in particular dimensioned, can be achieved.

It is also proposed that the at least one fluid coupling element is mounted on the at least one cover unit so as to be laterally displaceable relative to the at least one cover unit. The at least one fluidic coupling element is preferably mounted in a two-dimensional floating manner. The at least one fluid coupling element can preferably follow the pivoting movement of the wiper blade adapter relative to the wiper arm adapter about the coupling pivot axis by means of a movable, in particular laterally movable bearing in the connected state of the at least one coupling element and the at least one fluid connection element. The at least one fluidic coupling element is preferably mounted in a two-dimensional floating manner on the cover unit, in particular on the housing element. The at least one fluid coupling element is preferably mounted floating in the bearing plane on the cover unit, in particular on the housing element. The bearing plane is preferably a geometric plane which is oriented perpendicularly to the transverse axis of the cover unit, in particular perpendicularly to the coupling pivot axis, in particular perpendicularly to the pivot axis. The at least one fluid coupling element is preferably mounted on the at least one cover unit, in particular the housing element, in a manner that it can be displaced transversely to the at least one cover unit in the bearing plane. The range of movement of the at least one fluid coupling element along the longitudinal axis of the cover unit, in particular of the housing element, is preferably smaller than the range of movement of the at least one fluid coupling element in the bearing plane at least substantially perpendicular to the longitudinal axis of the cover unit, in particular of the housing element. The at least one fluid coupling element is preferably movable in the bearing plane by a maximum of 0.3 cm, preferably a maximum of 0.2 cm, along the longitudinal axis of the cover unit, in particular of the housing element. The at least one fluid coupling element is preferably movable in the bearing plane perpendicular to the longitudinal axis of the cover unit, in particular of the housing element, by a maximum of 1 cm, preferably a maximum of 0.5 cm. Preferably, the at least one fluid coupling element is movable in the bearing plane perpendicular to the longitudinal axis of the cover unit, in particular of the housing element, by at least 0.1 cm, preferably by at least 0.2 cm. An advantageous, in particular advantageously limited, movability of the fluidic coupling element relative to the covering unit, in particular the covering hood, can be achieved. The advantageous, limited to one plane, movability of the fluid coupling element relative to the cover unit, in particular the cover cap, can be achieved.

It is furthermore proposed that the wiper device comprises a bearing unit for movably supporting the fluid coupling element on the at least one cover unit, the bearing unit having at least one bearing groove and having at least one bearing projection, which is guided in the at least one bearing groove. The bearing unit preferably comprises at least two, in particular identical, bearing grooves. The bearing unit preferably comprises at least two, in particular identical, bearing projections. The at least one bearing projection preferably hangs in the at least one bearing groove. Preferably, the at least one fluid coupling element is movably supported, in particular without loss, by the bearing unit, preferably by at least one, preferably at least two, bearing projections, which are suspended in at least one, preferably at least two, bearing grooves, preferably at least two, housing elements. Alternatively, the at least one fluid coupling element is movably supported, in particular without loss, at the frame unit by the bearing unit, preferably by at least one, preferably at least two, bearing projections which are suspended in at least one, preferably at least two, bearing grooves. An advantageously simple, in particular mounted, movable support of the fluid coupling element can be achieved. It can be achieved in particular that the fluid coupling element can be connected to and/or disconnected from the at least one fluid connecting element by pivoting the cover unit, wherein the fluid coupling element, together with the fluid connecting element, can be pivoted with the wiper blade relative to the wiper arm adapter in the connected state. It is possible to connect the fluid coupling element to the cover unit in a manner movable relative to the cover unit in the connected state of the fluid connection element.

It is also proposed that the at least one bearing projection is at least substantially rib-shaped. The at least one bearing projection is preferably arranged at the housing element, at the fluidic coupling element or alternatively at the frame unit. The at least one bearing projection preferably extends as a projection along the coupling pivot axis, in particular the pivot axis. The at least one bearing projection is preferably at least substantially ribbed, at least viewed along the pivot axis, in particular along the coupling pivot axis, in particular at least substantially perpendicular to the pivot axis, in particular perpendicular to the coupling pivot axis. Preferably, the largest extension of the at least one bearing projection is oriented at least substantially perpendicularly to the longitudinal axis of the cover unit and perpendicularly to the pivot axis, in particular perpendicularly to the coupling pivot axis. The at least one bearing projection is preferably limited along the longitudinal axis of the cover unit to a maximum extension which is shorter than a maximum extension of the at least one bearing groove along the longitudinal axis of the cover unit. The at least one bearing projection is preferably limited to a maximum extension of 0.49 cm, preferably a maximum of 0.24 cm, along the longitudinal axis of the cover unit. The at least one bearing projection is preferably limited to a maximum extent at least substantially perpendicular to the longitudinal axis of the cover unit that is shorter than a maximum extent of the at least one bearing groove at least substantially perpendicular to the longitudinal axis of the cover unit. The at least one bearing projection is preferably limited to a maximum extension of 1.99 cm, preferably a maximum of 0.99 cm, particularly preferably a maximum of 0.49 cm, along the longitudinal axis of the cover unit. The at least one bearing projection is preferably limited along the longitudinal axis of the cover unit to a maximum extension which is at most half, preferably at most one quarter, particularly preferably at most one eighth, of the maximum extension of the at least one bearing projection at least substantially perpendicular to the longitudinal axis of the cover unit. The projection is configured "at least substantially ribbed" preferably should be understood to mean that the ribbed projection has at least one rounded, curved or curved portion or course. The at least one bearing projection preferably has, viewed along the pivot axis, a rounded core element with two partial elements extending from the core element at least substantially perpendicularly to the pivot axis. The at least one bearing projection is preferably at least substantially propeller-shaped, viewed along the pivot axis. The at least one bearing projection is preferably configured at least substantially in an aircraft-hole shape, in particular configured complementary to the aircraft hole, preferably with an aircraft-hole-shaped outer contour, as viewed along the pivot axis. An advantageous movability of the bearing projection in the bearing groove can be achieved. In particular, a small mobility of the fluidic coupling element along the longitudinal axis of the cover unit, with a large pivotability of the fluidic coupling element in the bearing plane, can be achieved.

It is also proposed that the at least one bearing groove is at least substantially configured in the form of a groove. The at least one bearing groove is preferably limited in the bearing plane. The at least one bearing groove is preferably free from restrictions, in particular in the direction of the coupling pivot axis, of a component, in particular on which the bearing groove is arranged, for example a housing element, in particular a cover unit, a fluidic coupling element or an alternative frame unit. The largest extension of the at least one bearing groove is preferably substantially perpendicular to the longitudinal and transverse axes of the cover unit. The at least one bearing groove is preferably limited to a maximum extension of 0.5 cm, preferably a maximum of 0.25 cm, along the longitudinal axis of the cover unit. The at least one bearing groove is preferably limited at least substantially perpendicularly to the longitudinal axis of the cover unit to a maximum extension of 2 cm, preferably a maximum of 1 cm, particularly preferably a maximum of 0.5 cm. The at least one bearing groove is preferably limited along the longitudinal axis of the cover unit to a maximum extension of at least one bearing groove at least substantially perpendicular to a maximum extension of half, preferably a maximum of quarter, particularly preferably a maximum of eighth of the maximum extension of the longitudinal axis of the cover unit. The at least one bearing groove can be at least partially tapered along the greatest extent of the at least one bearing groove, in particular in the direction of the wiper blade adapter. The at least one bearing groove may have a greater maximum extension along the longitudinal axis of the cover unit at the end facing away from the pivot axis, as viewed along the maximum extension of the bearing groove, in particular as viewed from the housing element, than at the end of the bearing groove facing away from the pivot axis. The recess is configured "at least substantially in the form of a cut groove" preferably means that the cut groove can have an at least partially curved or curved course in at least one direction.

A particularly small displaceability of the fluid coupling element, in particular in the bearing plane, along the longitudinal axis of the cover unit with a large displaceability perpendicular to the longitudinal axis can be achieved.

It is furthermore proposed that the at least one bearing projection is at least substantially concave, as viewed from the pivot axis. The at least one bearing projection is preferably configured to be concavely curved, as viewed from the pivot axis, in order to align the connection direction of the fluidic coupling element in the direction of the fluidic connection element when the cover unit, in particular the housing element, is pivoted. The at least one bearing projection is preferably configured to curve about the pivot axis along an arc of a circle, as viewed from the pivot axis. The expression "at least one bearing projection is at least substantially concave when viewed from the pivot axis" preferably means that the bearing projection is at least largely curved, wherein the bearing projection is at least largely curved in the direction of the pivot axis. The bearing projection can be configured in particular along a circular arc about the pivot axis. An advantageous guidance of the coupling element for the fluid can be achieved.

It is furthermore proposed that the at least one bearing recess is at least substantially concave, as viewed from the pivot axis. The at least one bearing groove is preferably configured to be concavely curved, as viewed from the pivot axis, in order to align the connection direction of the fluidic coupling element in the direction of the fluidic connection element when the cover unit, in particular the housing element, is pivoted. The at least one bearing groove is preferably configured to curve about the pivot axis along an arc of a circle, as viewed from the pivot axis. The expression "at least one bearing groove is at least substantially concave when viewed from the pivot axis" preferably means that the bearing groove is at least largely curved, wherein the bearing groove is at least largely curved in the direction of the pivot axis. The bearing groove can be configured in particular along a circular arc about the pivot axis. An advantageously simple connection of the fluidic coupling element to the fluidic connecting element can be achieved when pivoting the cover element.

It is further proposed that the at least one fluid coupling element has at least one alignment rib on the side facing away from the wiper blade adapter for aligning the at least one fluid coupling element in order to connect the at least one fluid coupling element to the fluid connecting element. The at least one alignment rib is preferably arranged on the side facing away from the wiper blade adapter. The at least one alignment rib is preferably provided for aligning the at least one fluid coupling element when the latter rests on the housing element, in particular for the purpose of pivoting in a positive-locking connection of the fluid coupling element with the fluid connecting element. The at least one fluid coupling element can rest against the wiper blade adapter when the cover unit is pivoted, so that it also rests against the housing element and is thus realigned and connectable to the connecting element. The movability of the fluidic coupling element can be advantageously combined, in particular combined, with a simple mounting/dismounting.

It is also proposed that the at least one bearing projection be formed in one piece with the fluid coupling element. The at least one fluid coupling element preferably has at least one, preferably at least two bearing projections, in particular for engaging in at least one, in particular at least two bearing grooves. The at least one fluid coupling element preferably has at least two bearing projections, in particular similar to one another. The at least two bearing projections are preferably arranged in line with one another along the pivot axis, in particular at the fluidic coupling element.

It is also proposed that at least one bearing groove is arranged at the cover unit. At least two, in particular mutually similar, bearing grooves are preferably arranged at the covering unit, in particular at the housing element, or alternatively at the frame unit. At least two, in particular mutually similar, bearing grooves are preferably arranged in line with one another along the pivot axis, in particular at the housing element or alternatively at the frame unit. The at least one bearing groove is preferably delimited by a housing element. Alternatively, it is possible without any problem in the art that at least one fluid coupling element defines at least one bearing groove. Alternatively, it can be realized without problems in the art that the cover unit has at least one, preferably at least two bearing projections. The at least one bearing protrusion of the cover unit may alternatively be arranged in the at least one bearing groove of the coupling element. An advantageously simple mounting of the wiper device can be achieved.

It is also proposed that the fluidic coupling element has at least one lead-in chamfer for receiving the fluidic coupling element. At least one of the connecting elements preferably has a lead-in chamfer at least on the side facing the pivot axis. The at least one fluid connecting element may have a lead-in chamfer at least one side facing away from the pivot axis. An advantageously simple mounting, in particular a pivot connection, of the fluidic coupling element to the fluidic connecting element can be achieved.

Furthermore, a windshield wiper with a wiper device and a wiper arm according to the invention is proposed. The wiper arm has at least one fluid feed line. The wiper blade preferably comprises at least one wiper strip unit, in particular with a wiper lip. The wiper blade preferably comprises at least one spring rail. The wiper blade preferably comprises at least two wiper blade end caps. The wiper blade preferably comprises at least one wind deflector unit. The windscreen wiper preferably comprises at least one wiper arm. The windshield wiper preferably comprises at least one fluid supply line. A windshield wiper can be constructed with components that advantageously cooperate with one another, in particular for wiping a glass having a curved shape. An advantageously movable glass wiper can be achieved. An advantageously precise contact of the wiper blade on the pane, in particular a pane having a curved shape, can be achieved.

The wiper system according to the invention and/or the windshield wiper according to the invention should not be limited to the above-described applications and embodiments. The wiper device according to the invention and/or the windshield wiper according to the invention can have a number of individual elements, components and units different from the number described here, in particular in order to fulfill the operating modes described here. Furthermore, in the value fields described in the present disclosure, values within the limits should also be regarded as being public and disposable.

Further advantages arise from the following description of the figures. Three embodiments of the invention are shown in the drawings. The figures, description and claims contain a large number of combined features. The person skilled in the art can also expediently observe the features individually and generalize them to reasonable further combinations.

Drawings

Fig. 1 shows a schematic view of a windscreen wiper according to the invention with a wiper device according to the invention;

fig. 2 shows a schematic view of a further wiper blade according to the invention with an alternative wiper device according to the invention; and is

Fig. 3 shows a schematic view of another windshield wiper according to the invention with an alternative wiper device according to the invention.

Detailed Description

Fig. 1 shows a glass wiper 60 a. The glass wiper 60a includes a wiper arm 64 a. The windshield wiper 60a includes a wiper blade 62 a. The windshield wiper 60a includes at least one wiper device 10 a.

The windshield wiper 60a includes a fluid supply line 66a, which is not shown in detail. The fluid supply line 66a is arranged along the wiper arm 64 a. The fluid supply line 66a is connected to the wiper arm 64a along a portion of the wiper arm 64 a. A fluid supply line 66a is provided for supplying the wiper blade 62a with cleaning water. At the wiper arm 64a, a wiper arm adapter 12a of the wiper device 10a is arranged. The wiper arm adapter 12a is integrally connected to the wiper arm 64 a.

The wiper blade 62a comprises a wiper strip unit 70a, in particular with a wiper lip 72 a. Wiper blade 62a includes two spring rails, not shown. The wiper blade 62a may alternatively comprise only one spring rail. The wiper blade 62a comprises a spoiler unit 76a with two spoiler elements 74a, 74a ″. Wiper blade 62a includes two wiper blade end caps, not shown.

The wiper device 10a includes a wiper arm adapter 12 a. The wiper arm adapter 12a is designed as the end of the wiper arm 64a along the longitudinal axis 14a of the wiper arm 64 a. The wiper arm adapter 12a comprises a pin element 18 a. The pin element 18a is provided for movably supporting the wiper blade adapter 16a on the wiper arm adapter 12 a. The pin element 18a defines a coupling pivot axis 20 a. The coupling pivot axis 20a is oriented perpendicular to the longitudinal axes 14a, 22a of the wiper arm adapter 12a, in particular of the wiper blade 62a and/or of the wiper arm 64a and/or of the wiper blade adapter 16 a.

The wiper arm adapter 12a has a holding bracket 24 a. The bow 24a is provided to ensure a connection of the wiper arm adapter 12a to the wiper blade adapter 16a in the axial direction with respect to the coupling pivot axis 20 a. The holding bow 24a has a curved end, in particular a 90 ° curved end. The retaining bow 24a has a maximum extent oriented parallel to the coupling pivot axis 20 a.

The wiper device 10a includes a wiper blade adapter 16 a. The wiper blade adapter 16a is arranged between the spoiler elements 74a, 74a ″. The wiper blade adapter 16a comprises a main body 26 a. The wiper blade adapter 16a, in particular the main body 26a, is connected to a wiper strip unit 70 a. The wiper blade adapter 16a is connected to the spring rail. The spring rails stabilize the wiper strip unit 70a of the wiper blade 62a along the longitudinal axis 68a of the wiper blade 62a, in particular over the entire maximum longitudinal extent of the wiper strip unit 70 a.

The wiper blade adapter 16a has a fluid connecting element 34 a. The fluid connecting element 34a forms two fluid inlets at the base body 26a of the wiper blade adapter 16 a. Two, in particular fluidically separate, fluid channels of the wiper blade adapter 16a extend through the main body 26a, in particular for operating both wiping directions of the wiper blade 62a with washing water. The matrix 26a, in particular each fluid channel, is fluidically connected with channel elements of the wiper strip unit 70a and/or of the spoiler elements 74a, 74 a'. The base body 26a has five fluid outlet elements 42a, in particular fluid outlet nozzles. The wiper blade adapter 16a, in particular the main body 26a, has at least one mechanical connecting element 38 a. The mechanical connecting element 38a is provided for receiving and in particular pivotably mounting the pin element 18a of the wiper arm adapter 12a, in particular about the coupling pivot axis 20 a. The fluid connection element 34a has two lead-in ramps 54 a. Lead-in ramps 54a provide coupling elements 36a for receiving fluid. The lead-in chamfer 54a extends circularly around each of the two fluid inputs, which are formed in particular by the fluidic coupling element 36 a.

The wiper device 10a includes a cover unit 28 a. The covering unit 28a comprises a housing element 30 a. The housing element 30a is, for example, of one-piece construction.

The cover unit 28a is connected to the wiper arm adapter 12 a. The cover unit 28a is movably connected to the wiper arm adapter 12 a. The cover unit 28a is connected to the wiper arm adapter 12a in a manner pivotable relative to the wiper arm adapter 12a about a pivot axis 32 a. Fig. 1 shows the cover unit 28a in a pivoted state, in particular pivoted upward, on the wiper arm adapter 12 a.

The housing element 30a is connected to the wiper arm adapter 12a, in particular, so as to be pivotable about a pivot axis 32 a. The housing element 30a, in particular the cover unit 28a, is connected to the wiper arm adapter 12a in a non-displaceable manner.

The wiper device 10a comprises at least one fluidic coupling element 36 a. The fluid coupling element 36a is fluidly connected to the fluid supply line 66a of the windshield wiper 60 a. The fluidic coupling element 36a is in particular configured as the end of a fluid supply line 66 a. The fluid coupling element 36a is provided for fluid connection with the at least one fluid connecting element 34 a. By pivoting the cover unit 28a, in particular the housing element 30a, the fluidic coupling element 36a can be fluidically connected to or disconnected from the fluidic connecting element 34 a. The fluidic coupling element 36a has an alignment rib 52a, the alignment rib 52a being arranged on the side of the fluidic coupling element 36a facing away from the wiper blade adapter 16 a. The alignment rib 52a is provided for aligning the at least one fluid coupling element 36a to connect the at least one fluid coupling element 36a with the fluid connecting element 34 a.

A fluidic coupling element 36a is mounted on the housing element 30 a. The housing element 30a forms two bearing projections 40a, 40 a', which extend in particular in the direction of the wiper lip 72a of the wiper blade 62 a. The supporting projections 40a, 40 a' are oriented perpendicularly to the longitudinal axis 44a of the covering unit 28 a. The fluidic coupling element 36a is mounted on the at least one cover unit 28a in a movable manner relative to the at least one cover unit 28 a. The fluidic coupling element 36a is mounted on the at least one cover unit 28a so as to be laterally displaceable relative to the at least one cover unit 28 a.

The wiper device 10a includes a bearing unit 46 a. The bearing unit 46a is provided for movably supporting the fluid coupling element 36a at the cover unit 28a, in particular the housing element 30 a. The bearing unit 46a has two bearing grooves 48a, 48a ″. The bearing unit 46a has two bearing protrusions 50a, 50 ″. The two bearing protrusions 50a, 50a 'are guided in the two bearing grooves 48a, 48 a'. The two bearing projections 50a, 50 a' are constructed integrally with the coupling element 36a of the fluid.

Two bearing grooves 48a, 48 a' are arranged at the covering unit 28 a. Each one of the bearing grooves 48a, 48a 'is centrally arranged in the support projection 40a, 40 a'. Bearing grooves 48a, 48 a' are bounded by casing element 30 a.

The two bearing grooves 48a, 48 a' are configured in a slit shape. The two bearing grooves 48a, 48 a' are configured to be concave as viewed from the pivot axis 32 a. At least two bearing grooves 48a, 48 a' are similarly configured to each other. At least two bearing grooves 48a, 48 a' have a curved shape, respectively. At least two bearing grooves 48a, 48 a' are each configured symmetrically, in particular at least substantially symmetrically, to the curved outer contour of the slotted profile. Bearing grooves 48a, 48 a' are limited to the largest extension, which is oriented perpendicular to longitudinal axis 44a of covering unit 28a except for a deviation of 15 °. The two bearing grooves 48a, 48 a' are in particular constructed and/or arranged at least substantially along the circular arc 56 a. The two bearing grooves 48a, 48 a' are in particular configured with a slotted outer contour curved around the circular arc 56 a.

At least two bearing grooves 48a, 48 a' are arranged on opposite side faces of the covering unit 28a, in particular of the casing element 30 a. Bearing grooves 48a, 48 a' can be localized to different, in particular varying, extensions along longitudinal axis 44a of covering unit 28 a. The two bearing grooves 48a, 48a 'may in particular be limited, at the end facing the wiper blade adapter 16a, to an extension parallel to the longitudinal axis 44a of the covering unit 28a that is shorter than at the end of the bearing grooves 48a, 48 a' facing away from the at least one wiper blade adapter 16 a.

The coupling element 36a of the fluid has two bearing projections 50a, 50a ', in particular suspension ribs, for being suspended, in particular, in at least one, in particular at least two, bearing grooves 48a, 48 a' at the covering unit 28 (see fig. 1). The bearing projections 50a, 50 a' extend preferably parallel to the pivot axis 32a, in particular the coupling pivot axis 20a, and in particular perpendicular to the longitudinal axis 44a of the covering unit 28a, at the fluidic coupling element 36 a.

At least one bearing protrusion 50a, 50 a' is at least substantially configured to be rib-shaped. The bearing projections 50a, 50 a' of the coupling element 36a of the fluid have a slightly elongated shape in section, in particular viewed perpendicularly to the pivot axis 32a along the bearing plane. The bearing plane is a geometrical plane which is oriented perpendicularly to the pivot axis 32 a. At least one bearing protrusion 50a, 50 a' is configured in the shape of a rib, at least in the bearing plane. The bearing projections 50a, 50 a' are configured as at least substantially straight, in particular non-curved, ribs.

The fluidic coupling element 36a is mounted on the at least one cover unit 28a in a movable manner relative to the at least one cover unit 28 a. At least one fluid coupling element 36a is mounted on the at least one cover unit 28a so as to be laterally displaceable relative to the at least one cover unit 28 a. The fluidic coupling element 36a is mounted, in particular, in a manner that can be moved transversely in the bearing plane, in particular perpendicularly to the pivot axis 32a, in particular the coupling pivot axis 20a, at the covering unit 28a, in particular at the housing shell element 30a, in particular in the bearing grooves 48a, 48a ″. The bearing grooves 48a, 48a 'constitute, among other things, a local limiting structure of the degrees of freedom of the bearing projections 50a, 50 a'.

Another embodiment of the present invention is shown in fig. 2 and 3. The following description and the figures are substantially limited to the differences between the exemplary embodiments, wherein reference can in principle also be made to the drawings and/or the description of further exemplary embodiments, in particular of the exemplary embodiment of fig. 1, with respect to identically labeled components, in particular with respect to components having the same reference numerals. To distinguish the embodiments, the reference numerals of the embodiments in fig. 1 are followed by the letter a. In the embodiment of fig. 2 and 3, the letter a is replaced by letters b and c.

Fig. 2 shows a further windshield wiper 60b according to the invention with an alternative wiper device 10 b.

The bearing unit 46b has bearing grooves 48b, 48 b'. The bearing unit 46b has two bearing protrusions 50b, 50 b'. The two bearing protrusions 50b, 50 b' are at least substantially configured in a rib shape. The bearing projections 50b, 50 b' of the coupling element 36b of the fluid have a slightly elongated shape in section, in particular viewed perpendicularly to the pivot axis 32b along the bearing plane. The bearing plane is a geometrical plane that is oriented perpendicular to the pivot axis 32 b. At least one bearing protrusion 50b, 50 b' is configured in the shape of a rib, at least in the bearing plane. The bearing protrusions 50b, 50 b' are similarly configured to each other. The bearing protrusions 50b, 50 b', in particular in a section plane along the bearing plane, have a curved shape, respectively. The bearing projections 50b, 50 b' are configured to be concave when viewed from the pivot axis 32 b. In particular, the bearing projections 50b, 50 b' are configured concave around the circular arc 56b, as seen from the pivot axis 32 b. In particular, the bearing projections 50b, 50b 'and the bearing recesses 48b, 48 b' are configured to be concave about the circular arc 56b, as viewed from the pivot axis 32 b.

Fig. 3 shows a further windshield wiper 60c according to the invention with an alternative wiper system 10 c.

The bearing unit 46c has bearing grooves 48c, 48 c'. The bearing unit 46c has two bearing protrusions 50c, 50 c'. The two bearing protrusions 50c, 50 c' are at least substantially configured in a rib shape. The bearing projections 50c, 50 c' of the coupling element 36c of the fluid have an at least substantially oblong shape in cross section, in particular viewed perpendicularly to the pivot axis 32c along the bearing plane. The bearing plane is a geometrical plane that is oriented perpendicular to the pivot axis 32 c. At least one bearing protrusion 50c, 50 c' is configured in the shape of a rib, at least in the bearing plane. The bearing protrusions 50c, 50 c' are similarly configured to each other. The bearing protrusions 50c, 50 c' each have a curved shape, in particular in a section plane along the bearing plane.

The bearing projections 50c, 50 c' are configured to be concave as viewed from the pivot axis 32 c. In particular, the bearing projections 50c, 50 c' are configured to be concave, as viewed from the pivot axis 32c, about the circular arc 56 c. In particular, the bearing projections 50c, 50c 'and the bearing grooves 48c, 48 c' are configured to be concave about the circular arc 56c, as viewed from the pivot axis 32 c.

The bearing projections 50c, 50c ', in particular viewed along the pivot axis 32c, have a rounded, in particular circular, intermediate portion 58c, 58 c', respectively. The rounded intermediate portions 58c, 58c ' are provided for smoothly rotating the bearing protrusions 50c, 50c ' in the bearing grooves 48c, 48c '. The lateral portions 78c, 78c ', 80c ' extend from the intermediate portions 58c, 58c ', in particular if viewed along the pivot axis 32 c. Side portions 78c, 78c ', 80 c' are provided for limiting the degree of freedom of movement, in particular the rotatability and/or the movability, of bearing protrusions 50c, 50c 'in bearing grooves 48c, 48 c'. Side portions 78c, 78c ', 80 c' and intermediate portions 58c, 58c ', in particular, form rib-shaped bearing protrusions 50c, 50 c' in the bearing plane.

Claims (12)

1. A wiper device having: at least one wiper blade adapter (16 a; 16 b; 16 c) having at least one fluid connecting element (34 a; 34 b; 34 c); at least one wiper arm adapter (12 a; 12 b; 12 c); at least one cover unit (28 a; 28 b; 28 c) which is connected to the wiper arm adapter (12 a; 12 b; 12 c) in a manner such that it can pivot about a pivot axis (32 a; 32 b; 32 c) relative to the wiper arm adapter (12 a; 12 b; 12 c); and at least one fluid coupling element (36 a; 36 b; 36 c) which is fluidically connected to the at least one fluid connecting element (34 a; 34 b; 34 c), characterized in that the at least one fluid coupling element (36 a; 36 b; 36 c) is mounted on the at least one cover unit (28 a; 28 b; 28 c) in a manner such that it can be moved relative to the at least one cover unit (28 a; 28 b; 28 c).

2. A wiper device according to claim 1, characterized in that the at least one fluid coupling element (36 a; 36 b; 36 c) is supported at the at least one cover unit (28 a; 28 b; 28 c) in a laterally displaceable manner with respect to the at least one cover unit (28 a; 28 b; 28 c).

3. The wiper device according to claim 1 or 2, characterized in that a coupling element (36 a; 36 b; 36 c) for rendering said fluid is movably supported at a bearing unit (46 a; 46 b; 46 c) at said at least one covering unit (28 a; 28 b; 28 c), said bearing unit having at least one bearing groove (48 a, 48a ″, 48b ″, 48c ″) and at least one bearing protrusion (50 a, 50a ″;, 50b ″;. 50c, 50c ″), at least one bearing protrusion being guided in at least one bearing groove (48 a, 48a ″;. 48b, 48 b;. 48c, 48c ″).

4. The wiper device according to claim 3, characterized in that said at least one bearing protrusion (50 a, 50a '; 50b, 50b '; 50c, 50c ') is at least substantially configured as a rib.

5. Wiper device according to at least claim 3, characterized in that said at least one bearing groove (48 a, 48a '; 48b, 48b '; 48c, 48c ') is at least substantially configured as a slot-shaped cut.

6. A wiper device according to at least claim 3, characterized in that said at least one bearing protrusion (50 a, 50a '; 50b, 50b '; 50c, 50c ') is configured concave, viewed from the pivot axis (32 a; 32 b; 32 c).

7. A wiper device according to at least claim 3, characterized in that said at least one bearing groove (48 a, 48a '; 48b, 48b '; 48c, 48c ') is configured concave, as seen from said pivot axis (32 a; 32 b; 32 c).

8. Wiper device according to one of the preceding claims, characterized in that the at least one fluidic coupling element (36 a; 36 b; 36 c) has at least one alignment rib (52 a; 52 b; 52 c) at the side facing away from the wiper blade adapter (16 a; 16 b; 16 c) for aligning the at least one fluidic coupling element (36 a; 36 b; 36 c) for connecting the at least one fluidic coupling element (36 a; 36 b; 36 c) with the fluidic connecting element (34 a; 34 b; 34 c).

9. A wiper device according to at least claim 3, characterized in that said at least one bearing protrusion (50 a, 50a '; 50b, 50b '; 50c, 50c ') is integrally constructed with a coupling element (36 a; 36 b; 36 c) of said fluid.

10. Wiper device according to at least claim 3, characterized in that said at least one bearing groove (48 a, 48a '; 48b, 48b '; 48c, 48c ') is arranged at said covering element (28 a; 28 b; 28 c).

11. Wiper device according to one of the preceding claims, characterized in that the fluidic connecting element (34 a; 34 b; 34 c) has at least one lead-in chamfer (54 a; 54 b; 54 c) for receiving the fluidic coupling element (36 a; 36 b; 36 c).

12. Windscreen wiper device having a wiper device (10 a; 10 b; 10 c) according to any of the preceding claims and a wiper arm (64 a; 64 b; 64 c).

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