CN106467089B

CN106467089B - Doctor blade device

Info

Publication number: CN106467089B
Application number: CN201610677912.1A
Authority: CN
Inventors: H.德庞特
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2015-08-18
Filing date: 2016-08-17
Publication date: 2021-05-04
Anticipated expiration: 2036-08-17
Also published as: FR3040155A1; DE102015215709A1; CN106467089A; FR3040155B1

Abstract

The invention is based on a wiper blade device having a wiper blade adapter unit (10), which has a coupling unit (18) that is provided for coupling to at least one connecting element (12, 14, 16). It is proposed that the coupling unit (18) is provided for coupling with the connecting element (12, 14, 16) in at least one first position (102) of the connecting element (12, 14, 16) relative to the coupling unit (18) and in a second position (104) of the connecting element (12, 14, 16) relative to the coupling unit (18) that is twisted by at least substantially 180 °.

Description

Doctor blade device

Technical Field

The invention relates to a doctor blade device with a doctor blade adapter unit.

Background

Wiper blade devices with a wiper blade adapter unit are already known from the prior art, which have a coupling unit which is provided for coupling with at least one connecting element.

Disclosure of Invention

The invention is based on a wiper blade device with a wiper blade adapter unit, which has a coupling unit, which is provided for coupling with at least one connecting element.

It is proposed that the coupling unit is provided for coupling with the connecting element in at least one first position of the connecting element relative to the coupling unit and in at least one second position of the connecting element relative to the coupling unit, which is twisted by at least substantially 180 °. In this connection, a "blade adapter unit" is to be understood to mean, in particular, a unit which has a contact region to a connecting element and can be connected to the connecting element in a loss-proof manner, in particular, and which is advantageously provided for: the coupling region of the blade member of the wiper blade, in particular of the spring rail, of the wiper strip, of the wind-guiding element and/or of the wiping lip, is provided for coupling and/or contacting with the connecting element. In this connection, a "coupling unit" is to be understood as meaning, in particular, a unit which is provided for: the wiper blade is coupled to the wiper arm. In particular, "coupled" is to be understood as a non-positive and/or positive connection. In this connection, a "connecting element" is to be understood as meaning, in particular, an element which is provided for: the blade adapter unit is connected to the wiper arm and/or the wiper arm adapter. The connecting element is provided in particular for: coupling regions for coupling of the wiper arm and/or of the wiper arm adapter are provided. In particular, the connecting element is provided for coupling to different types of designs of the wiper arm adapter. In this connection, "different types of construction of the wiper arm adapter" are to be understood in particular as different wiper arm devices which differ in their construction and/or their fastening function. Preferably, it refers to a different standard wiper arm arrangement. In this connection, the first type of construction of the wiper arm adapter is to be understood in particular as a wiper arm adapter with a fastening pin and a lug plate. In this connection, further possible types of construction of the wiper arm adapter are to be understood as meaning in particular wiper arm adapters having an elongated hook-shaped body with a 180 ° bend. In this connection, further possible types of construction of the wiper arm adapter are to be understood as meaning in particular wiper arm adapters having two non-return means and a fastening nose. In this connection, further possible types of construction of the wiper arm adapter are to be understood in particular as wiper arm adapters having a fastening recess and a body with an s-shaped contour. In this connection, further possible types of construction of the wiper arm adapter are to be understood in particular as wiper arm adapters having fastening recesses and wall sections with fastening elements. In this connection, "coupled" is to be understood to mean, in particular, a non-positive and/or positive connection. In particular, the coupling unit and the connecting element are oriented at least substantially parallel to the surface to be cleaned, in particular the plate surface, in a first position of the connecting element relative to the coupling unit. In particular, the coupling unit and the connecting element are oriented at least substantially parallel to the surface to be cleaned, in particular the plate surface, in the second position of the connecting element relative to the coupling unit. In an at least substantially unchanged position and/or orientation of the coupling unit, a first position of the connecting element relative to the coupling unit and a second position of the connecting element relative to the coupling unit can be transferred into one another by a rotation of the connecting element in a plane oriented at least substantially parallel to the cleaning surface, in particular the board surface. In connection with the angle data, "at least substantially" is to be understood in particular as a deviation of maximally 30 °, preferably maximally 15 °, particularly preferably maximally 5 °. "provided" is to be understood in particular as specifically programmed, designed and/or configured. "setting an object for a specific function" is to be understood in particular to mean that the object fulfills and/or implements this specific function in at least one operating state and/or operating state.

By means of the embodiment according to the invention of the wiper blade arrangement, a high level of comfort can be achieved, in particular for the end user. In particular, orientation-independent coupling of the wiper blade adapter unit to the connecting element can be achieved. In particular, a simple production and/or a uniform appearance can be achieved.

It is furthermore proposed that the coupling unit has at least one transverse plane of symmetry which is oriented at least substantially perpendicularly to the longitudinal direction of the wiper blade adapter unit and in particular at least substantially perpendicularly to the longitudinal direction of the wiper arm and/or of the wiper strip and/or of the spring rail and about which the coupling unit is configured at least substantially mirror-symmetrically, in particular that the coupling unit has at least one longitudinal plane of symmetry which is oriented at least substantially parallel to the longitudinal direction of the wiper blade adapter unit and in particular at least substantially parallel to the longitudinal direction of the wiper arm and/or of the wiper strip and/or of the spring rail and about which the wiper blade adapter unit is configured at least substantially mirror-symmetrically. In particular, the longitudinal symmetry plane of the coupling unit is oriented at least substantially perpendicular to the surface to be cleaned, in particular the plate surface and/or the wiping direction. The term "longitudinal" of the object is to be understood to mean, in particular, a direction which is oriented parallel to the longest side of a smallest imaginary geometric cuboid which precisely also encloses the object. In this way, a particularly high comfort for the end user can be achieved.

It is furthermore proposed that the wiper blade adapter unit has at least one transverse plane of symmetry which is oriented at least substantially perpendicularly to the longitudinal direction of the wiper blade adapter unit and in particular at least substantially perpendicularly to the longitudinal direction of the wiper arm and/or of the wiper strip and/or of the spring rail, and that the wiper blade adapter unit is configured at least substantially mirror-symmetrically with respect to this transverse plane of symmetry. For example, the transverse plane of symmetry of the coupling unit and the transverse plane of symmetry of the blade adapter unit can be planes of symmetry which are different from one another and/or are arranged at a distance from one another. Advantageously, the lateral symmetry plane of the coupling unit and the lateral symmetry plane of the blade adapter unit are at least substantially the same symmetry plane. In particular, a flexible coupling between the blade adapter unit and the connecting element can thereby be achieved.

It is furthermore proposed that the wiper blade adapter unit has at least one longitudinal plane of symmetry which is oriented at least substantially parallel to the longitudinal direction of the wiper blade adapter unit and in particular at least substantially parallel to the longitudinal direction of the wiper arm and/or of the wiper strip and/or of the spring rail, and that the wiper blade adapter unit is configured at least substantially mirror-symmetrically with respect to this transverse plane of symmetry. For example, the longitudinal symmetry plane of the coupling unit and the longitudinal symmetry plane of the blade adapter unit can be different and/or arranged at a distance from one another. Advantageously, the longitudinal symmetry plane of the coupling unit and the longitudinal symmetry plane of the blade adapter unit are at least substantially the same symmetry plane. In particular, the longitudinal symmetry plane of the blade adapter unit is oriented at least substantially perpendicular to the surface to be cleaned, in particular the plate surface and/or the wiping direction. This makes it possible to further improve the comfort for the end user.

For example, the coupling unit can be a solid unit which can extend, in particular, at least substantially over the entire transverse extent and/or longitudinal extent of the entire blade adapter unit, and through which a longitudinal plane of symmetry of the coupling unit can advantageously pass. Advantageously, the coupling unit has at least two separate coupling elements which are arranged on mutually opposite sides of a longitudinal plane of symmetry of the blade adapter unit and are arranged at a distance from the longitudinal plane of symmetry of the blade adapter unit. The coupling elements are arranged in particular at a distance from one another and advantageously have at least substantially the same and preferably the same spacing from the longitudinal plane of symmetry. In particular, gaps and/or air-filled regions are arranged between the coupling elements. In particular, low costs and/or low material consumption can thereby be achieved.

Furthermore, it is proposed that a coupling unit for coupling with at least two and in particular with at least three differently shaped connecting elements be provided. In this connection, "differently shaped" is to be understood in particular as: the configuration of the member is different from the configuration of the other members. In particular, connecting elements for coupling with wiper arm adapters of different design are provided. In particular, different design types of wiper arm adapters have differently arranged bearing surfaces, bearing elements and/or cover elements. The coupling unit is provided in particular for: the coupling with one of the connection elements is performed by the end user during the installation process. In this connection, an "installation process" is to be understood to mean, in particular, a process which is carried out by an end user, in particular by the end user, wherein, in the process, at least one closed installation step is carried out, by means of which the wiper arm device can be brought into operation. In this connection, "end user" is to be understood in particular as an end user and/or a private person who possesses at least the usual technical knowledge. In particular, the end-user is different from the production participant and/or the plant participant and/or the person with a rich technical knowledge and/or the person skilled in the technical field concerned. Advantageously, the installation is performed by the end user without tools. In this way, small stores can be realized.

It is also proposed that the wiper blade adapter unit has a transmission unit which is designed at least substantially mirror-symmetrically with respect to a transverse plane of symmetry and is provided for: the coupling between the connecting element and the blade adapter unit is released during the dismounting process. In this connection, a "gear unit" is to be understood as meaning, in particular, a unit which is provided for: the at least one further component is moved in a further direction of movement (which is in particular different from the first direction of movement) outwardly from the movement of the first component in the first direction of movement. In particular, the first direction of movement and the further direction of movement are at least substantially perpendicular to one another. In this connection, a "disassembly process" is to be understood as meaning, in particular, a process in which at least one connecting element is released from the blade adapter unit. The coupling unit is provided in particular for: is releasably coupled to one of the connecting elements. In this connection, "capable of being deactivated" is to be understood in particular as being capable of being separated without destruction. In this way, the removal can be carried out particularly easily and quickly.

It is furthermore proposed that the gear unit has at least two ramp surfaces which are at least substantially mirror-symmetrically configured with respect to a transverse plane of symmetry and are provided for: at least one sidewall portion of the connecting element is at least partially displaced during the disassembly process. The ramp surface encloses an acute angle, in particular, with respect to at least one surface of the coupling unit, in particular with respect to at least one groove guide base surface of the groove guide of the coupling unit. In particular, the ramp is arranged in a region of the coupling unit which faces the longitudinal webs and/or the wiper strip of the wiper blade adapter unit. In particular, the coupling unit has at least two groove guides, which are designed at least substantially mirror-symmetrically with respect to a transverse plane of symmetry and which are provided for guiding the connecting element, in particular one of the connecting elements, so that a specific, predetermined movement of the connecting element relative to the coupling unit can advantageously be achieved. In this connection, a "groove guide" is to be understood to mean, in particular, a groove in which the connecting element is guided in a forced manner in at least one plane. The transfer function of the groove guide is determined solely by the tendency of the groove channel. Preferably, the trench lanes are formed by trenches. In particular, the removal process is carried out by pivoting the connecting element relative to the blade adapter unit. In this connection, "ramp surface" is to be understood to mean, in particular, a surface through which the connecting element is guided during the removal process and can thus be moved out of the groove guide. In this connection, "groove guide base surface" is to be understood to mean, in particular, a base surface of the groove guide, which is bounded by side walls provided for laterally positively guiding the groove. This makes it possible to displace the sidewall particularly reliably.

For example, the gear unit can have exactly at least two ramp surfaces which are at least substantially mirror-symmetrically configured with respect to a transverse plane of symmetry. Advantageously, the gear unit has at least two further ramp surfaces which are at least substantially mirror-symmetrically configured with respect to a transverse plane of symmetry and which are provided for: support the ramp during disassembly and, in particular, offset the side arm portions, if additional offset of the side wall portions is required than that induced by the ramp. In particular, the further ramp surface is arranged opposite the ramp surface, and in particular with respect to a plane oriented at least substantially perpendicularly to the transverse and longitudinal symmetry planes and/or with respect to a direction oriented at least substantially perpendicularly to the surface to be cleaned. This can further improve the reliability with respect to the displacement of the side wall portion.

It is also proposed that the wiper blade adapter unit has at least two longitudinal webs which run at least substantially parallel to one another and which are provided for connection to at least one further wiper blade component of at least one wiper blade, such as, in particular, a wiper strip and/or a spring rail and/or a wind deflector and/or a wiper lip. In this way, a particularly large contact surface for the coupling wiper strip can be obtained.

Furthermore, it is proposed that the blade adapter unit is designed in one piece. "one-piece" is to be understood in particular as meaning at least a material-fit connection: for example by welding, gluing, spraying and/or other processes that are meaningful to the person skilled in the art, and/or is understood to be advantageously shaped in one single piece: for example by being made by casting and/or by being made in a single-component or multi-component injection molding process or advantageously from a single blank. This enables a particularly high stability to be achieved.

The wiper blade arrangement according to the invention should not be limited to the use and the embodiments described above. In particular, the wiper blade device according to the invention can have a number which is different from the number mentioned here of the individual elements, components and units in order to satisfy the operating modes described here.

Drawings

Other advantages of the present invention are given in the following description of the figures. Embodiments of the invention are shown in the drawings. The figures and description contain a number of features in combination. The person skilled in the art will perceive the features as specified and taken alone and in other meaningful combinations.

The figure is as follows:

figure 1 shows in a perspective view different wiper arm adapters of a wiper arm device and three connecting elements of a wiper blade device according to the invention,

figure 2 shows in perspective a first of the connection elements,

figure 3 shows in perspective view the first connecting element portion of the first connecting element and the blade adapter unit of the blade arrangement in a first position and in a second position twisted by 180,

figure 4 shows the blade adapter unit in a perspective view,

figure 5 shows the blade adapter unit in a perspective side view,

FIG. 6 is an enlarged cut-away portion of the blade adapter unit of FIG. 5, and

fig. 7 is an enlarged cut-out of the blade adapter unit in fig. 5 in a mounted state.

Detailed Description

Fig. 1 shows three differently shaped connecting

elements

12, 14, 16 of a wiper blade arrangement according to the invention. The wiper blade arrangement is provided for coupling different wiper arm arrangements with the wiper blade 58 (fig. 4). The wiper blade 58 has a wiper blade device. The wiper blade 58 is configured as a flat wiper blade. The three differently shaped connecting

elements

12, 14, 16 are provided for coupling with different types of construction of the

wiper arm adapter

200, 202, 204, 206, 208, 210, 212. The

scraper arm adapters

200, 202, 204, 206, 208, 210, 212 of the different scraper arm devices are already known from the prior art and are at least partially standardized.

The first one 12 of the

connection elements

12, 14, 16 carries the designation "MA 2". The first connecting member 12 has a first connecting member portion 98 and a second connecting member portion 100 (see fig. 2). The first and second connecting

element portions

98, 100 are releasably couplable to each other, in particular without tools. The first connecting member portion 98 faces the blade adapter unit 10 of the blade device in the mounted state. The second connecting element portion 100 faces away from the blade adapter unit 10 of the blade device in the mounted state. The first connecting element 12 is provided for: are coupled to four differently shaped

wiper arm adapters

200, 202, 204, 206 (see fig. 1). A first one 200 of the

scraper arm adapters

200, 202, 204, 206, 208, 210, 212 carries the designation "SL 1". The first wiper arm adapter 200 has a fastening pin 214 and a lug plate 216. The fastening pin 214 extends parallel to the wiping direction 54 of the blade arrangement. The lug plate 216 first extends parallel to the fastening pin 214 and is bent at 90 ° in the end region 218 toward the vertical direction 40 of the wiper blade arrangement. The first connecting element 12 has a transverse recess 36 which is provided for receiving a fastening pin 214 of the wiper arm adapter 200. A second one 202 of the

scraper arm adapters

200, 202, 204, 206, 208, 210, 212 carries the designation "TL 2". The second wiper arm adapter 202 has a U-shaped receiving area 220 which is braced by two

side wall sections

222, 224 running parallel to one another and a rest wall section 226. The rest wall portion 226 is arranged perpendicular to the

side wall portions

222, 224. In the rest wall 226, a positioning recess 228 is arranged, which is provided for a defined positioning of the second wiper arm adapter 202 at the connecting element 12. A third one 204 of the

scraper arm adapters

200, 202, 204, 206, 208, 210, 212 carries the designation "VATL 2". The third wiper arm adapter 204 has two non-return portions 230, which are formed by the side wall portions, and a fastening nose 232. The fastening nose 232 is configured as a projection at the free end of the third wiper arm adapter 204. A fourth one 206 of the

wiper arm adapters

200, 202, 204, 206, 208, 210, 212 carries the designation "VATL 2.1". The fourth scraper arm adapter 206 has two non-return portions 234 formed by the side wall portions and a fastening nose 236. The fastening nose 236 is configured as a projection at the free end of the fourth wiper arm adapter 206. The fourth scraper arm adapter 206 comprises a rest wall 238 in which a positioning recess 240 is arranged, which is provided for a defined positioning of the fourth scraper arm adapter 206 at the connecting element 12. The first, second, third and fourth

scraper arm adapters

200, 202, 204, 206 are releasably coupleable with the first connecting element 12 in a known manner and method.

The second one 14 of the

connection elements

12, 14, 16 carries the designation "VATL 3". The fifth wiper arm adapter 208 of the

wiper arm adapters

200, 202, 204, 206, 208, 210, 212 carries the designation "VATL 3". The second connecting element 14 is provided for coupling with a fifth wiper arm adapter 208 of another type of construction. The fifth scraper arm adapter 208 has a fastening arm 242 which has an S-shaped curvature in an end region 244. The fifth scraper arm adapter 208 is releasably couplable to the second connecting element 14 in a known manner.

The third connecting element 16 of the connecting

elements

12, 14, 16 carries the designations "TL 2.1/2.2" and "SL 2". A sixth scraper arm adapter 210 of the

scraper arm adapters

200, 202, 204, 206, 208, 210, 212 carries the designation "TL 2.1/2.2". A seventh one 210 of the

wiper arm adapters

200, 202, 204, 206, 208, 210, 212 carries the designation "SL 2". The third connecting element 16 is provided for coupling with the sixth and seventh

wiper arm adapters

210, 212, respectively, which are shaped in another structural manner. The sixth scraper arm adapter 210 has a base wall portion 246 at which two

side wall portions

248, 250 are arranged. The

side wall portions

248, 250 each enclose an angle of 90 deg. with the base wall portion 246. Fasteners 252 are disposed at the lower ends of the

respective sidewall portions

248, 250, which fasteners again enclose an angle of 90 ° with the

sidewall portions

248, 250. A fastening void 254 is additionally arranged in the base wall portion 246 of the sixth scraper arm adapter 210. The seventh wiper arm adapter 212 has a fastening pin 256 and a lug plate 258. The fastening pin 256 extends parallel to the wiping direction 54. The lug plate 258 initially runs parallel to the fastening pin 256 and is bent at 90 ° in an end region 260 in the vertical direction 40. The sixth and seventh

wiper arm adapters

210, 212 are releasably coupleable with the third connecting element 16 in a known manner and method.

The first connecting element 12 has a side shaping 44. The side shaping 44 projects outwardly from the wall of the first connecting element 12 and forms a gripping area for the user. The second connecting element 14 has a longitudinal recess 38 which opens the connecting element 14 in the vertical direction 40 and is provided for receiving a wiper arm adapter 42. The second connecting element 14 has a side profile 78. The side formations 78 project outwardly from the wall of the second coupling member 14 and form gripping areas for the user. The third connecting element 16 has a transverse recess 76 which is provided for receiving a fastening pin 256 of the wiper arm adapter 212.

The blade device has a blade adapter unit 10 (see fig. 3 to 5). The blade adapter unit 10 comprises a coupling unit 18. The coupling unit 18 is provided for coupling with one of the three connecting

elements

12, 14, 16. Thereby, the coupling unit 18 is provided for coupling with three differently shaped connecting

elements

12, 14, 16. The coupling unit 18 is provided in particular for: during the installation process, the end user couples with one of the three connecting

elements

12, 14, 16. The blade adapter unit 10 has a contact area with respect to one of the three connecting

elements

12, 14, 16. In the mounted state, the blade adapter unit 10 is coupled, in particular connected, in a loss-proof manner, to one of the three connecting

elements

12, 14, 16. The blade adapter unit 10 is particularly suitably provided for a blade device.

In the following, the coupling of the coupling unit 18 to one of the

connection elements

12, 14, 16 is explained by means of the first connection element 12. The coupling of the coupling unit 18 to the second connecting element 14 or the third connecting element 16 takes place analogously. The coupling unit 18 is provided for: is coupled to the connecting element 12 in a first position 102 of the connecting element 12 relative to the coupling unit 18 and in a second position 104 of the connecting element 18, which is twisted by 180 ° relative to the coupling unit 18. The end user can couple each of the connecting

elements

12, 14, 16 with the blade adapter unit 10 in two

different positions

102, 104.

The coupling unit 18 has a transverse plane of symmetry 106, which is oriented perpendicular to the longitudinal direction 110 of the blade adapter unit 10. The coupling unit 18 is constructed mirror-symmetrically with respect to a transverse plane of symmetry 106 of the coupling unit 18. The longitudinal direction 110 of the blade adapter unit 10 is oriented substantially parallel to the wiper strip 60 of the wiper blade 58. The transverse plane of symmetry 106 of the coupling unit 18 is identical to the transverse plane of symmetry 106 of the blade adapter unit 10. The blade adapter unit 10 has a transverse plane of symmetry 106, which is oriented perpendicular to the longitudinal direction 110 of the blade adapter unit 10. The blade adapter unit 10 is constructed mirror-symmetrically with respect to a transverse plane of symmetry 106 of the blade adapter unit 10.

The blade adapter unit 10 has a longitudinal plane of symmetry 108 which is oriented parallel to a longitudinal direction 110 of the blade adapter unit 10. The longitudinal symmetry plane 108 of the blade adapter unit 10 and the transverse symmetry plane of the blade adapter unit 10 are oriented perpendicularly to one another. The blade adapter unit 10 is constructed mirror-symmetrically with respect to a longitudinal plane of symmetry 108 of the blade adapter unit 10. The coupling unit 18 has a longitudinal plane of symmetry 108 which is oriented parallel to a longitudinal direction 110 of the blade adapter unit 10. The coupling unit 18 is constructed mirror-symmetrically with respect to a longitudinal plane of symmetry 108 of the coupling unit 18. The longitudinal symmetry plane 108 of the coupling unit 18 and the longitudinal symmetry plane 108 of the blade adapter unit 10 are identical.

The coupling unit 18 has two

separate coupling elements

112, 114 which are arranged on mutually opposite sides of the longitudinal plane of symmetry 108 of the blade adapter unit 10 and are arranged at a distance from the longitudinal plane of symmetry 108 of the blade adapter unit 10. A first coupling element 112 of the

coupling elements

112, 114 is arranged on a first side of the longitudinal symmetry plane 108 of the blade adapter unit 10. A second coupling element 114 of the

coupling elements

112, 114 is arranged on a second side of the longitudinal symmetry plane 108 of the blade adapter unit 10, which is opposite the first side.

The wiper blade adapter unit 10 has two

longitudinal webs

46, 48 which run parallel to one another and which are provided for connection to further wiper blade components of the wiper blade 58, such as, in particular, a wiper strip 60 and/or a spring rail and/or a wind deflector and/or a wiper lip. The

longitudinal webs

46, 48 are arranged at a body 50 of the blade adapter unit 10. The blade adapter unit 10 is constructed in one piece.

In the following only such a part of the blade adapter unit 10 is described, which is arranged on a first side of a longitudinal symmetry plane 108 of the blade adapter unit 10. Similar explanations can be cited for the part of the blade adapter unit 10 which is arranged on the second side of the longitudinal symmetry plane 108 of the blade adapter unit 10, since the blade adapter unit 10 is constructed mirror-symmetrically with respect to the longitudinal symmetry plane 108 of the blade adapter unit 10.

The blade adapter unit 10 has a transmission unit 20, which is designed mirror-symmetrically with respect to a transverse plane of symmetry 106 and which, during the removal process, decouples the connecting

elements

12, 14, 16 from the blade adapter unit 10. The coupling unit 18 has two groove guides 32, which are designed mirror-symmetrically with respect to a transverse plane of symmetry 106 and are provided for guiding one of the connecting

elements

12, 14, 16. The groove guide 32 is arranged laterally in the body 50, in particular in a plane which is set perpendicular to the wiping direction 54. The groove guide 32 has no bend. The groove guide 32 has a substantially straight course.

The groove guides 32 each have a groove guide base 28 bounded by side walls. The side walls are set at an angle of 90 deg. to the groove guide base surface 28. The groove guide base 28 is provided as a permanent stop for the component to be guided in the respective groove guide 32. The side walls serve as lateral guides, in particular as lateral positive guides. The groove guide base surfaces 28 run perpendicular to the wiping direction 54 and parallel to the vertical direction 40.

The coupling unit 18 is provided for: is releasably coupled to one of the three connecting

elements

12, 14, 16. The connecting

elements

12, 14, 16 coupled to the coupling unit 18 can be separated again from the coupling unit 18 without destruction. The coupling unit 18 comprises two contact elements 22 which are embodied mirror-symmetrically with respect to a transverse plane of symmetry 106. The contact element 22 rests in the installed state with a positive fit on one of the three connecting

elements

12, 14, 16 and prevents the connecting

element

12, 14, 16 from being released from the blade adapter unit 10. In this connection, it is also conceivable for the coupling unit 18 to have further contact elements.

The contact element 22 is formed by a cylindrical fastening element 84. The fastening elements 84 comprise one longitudinal recess 86 each. The longitudinal interspace 86 extends in a direction oriented perpendicularly to a longitudinal symmetry plane 108 of the blade adapter unit 10. The longitudinal void 86 has a circular cross-section. The contact elements 22 are each formed by a sleeve element 88. The contact elements 22 each have a curved bearing surface 74, which in the installed state can pivotally support one of the connecting

elements

12, 14, 16. The pivot axis 52 of the connecting

elements

12, 14, 16 about the coupling unit 18 runs coaxially to the cylindrical fastening element 84 and to the circular cross section of the longitudinal recess 86 of the fastening element 84.

The contact elements 22 extend parallel to the wiping direction 54. The contact elements 22 are arranged at the

coupling elements

112, 114. The contact elements 22 (viewed in the wiping direction 54) extend on both sides over the

respective coupling elements

112, 114.

In the following, for example, first the mounting process of the first connecting element 12 with the coupling unit 18 and next the dismounting process of the first connecting element 12 from the coupling unit 18 are explained. In principle, however, the process is not limited to the first connecting element 12, but can likewise be transferred to the second and third connecting elements 14, 16.

In the initial position of the mounting process, the connecting element 12 is arranged above the blade adapter unit 10. During the mounting process, the connecting element 12 is guided in a linear movement into the final coupling state with the coupling unit 18. The linear movement takes place in a mounting direction 72 which extends substantially parallel to the vertical direction 40 in the direction of the blade adapter unit 10 (see fig. 3).

The blade adapter unit 10 has two inclined stop faces 56, which are designed mirror-symmetrically with respect to a transverse plane of symmetry 106 and limit the offset of the connecting element 12 relative to the body 50 of the blade adapter unit 10 in the installed state (see fig. 3 to 5). The oblique stop surface 56 is arranged at the side of the

coupling elements

112, 114 facing away from the wiper blade 58. The oblique stop face 56 encloses an acute angle with respect to the two

longitudinal webs

46, 48 of the blade adapter unit 10.

In a first mounting step, the connecting element 12 is moved by the end user towards the blade adapter unit 10. The connecting element 12 has two elastically deflectable lateral walls 62, which are provided for coupling with the coupling unit 18 (see fig. 1). The side wall sections 62 have pivot axes running parallel to one another, which are not described in detail. The side wall portions 62 are chamfered on inner surfaces facing each other. The inner surfaces collectively enclose an acute angle. Viewed in a direction oriented parallel to the mounting direction 72 (which extends substantially parallel to the vertical direction 40 in the direction of the blade adapter unit 10), the inner surfaces run in alignment with one another.

During the first mounting step, the beveled inner surface of the side wall portion 62 can rest against the contact element 22 of the coupling unit 18. The contact element 22 furthermore exerts a biasing force on the side wall portion 62 via the inner surface. Thus, movement of the connecting element 12 in the mounting direction 72 causes deflection of the side wall portion 62. Upon deflection, the sidewall portions 62 move away from each other. The required biasing force depends on the material used and the wall thickness used of the sidewall portion 62 and the length of the contact element 22.

The transverse recess 36 of the connecting element 12 is provided for a form-fitting coupling with the contact element 22 (see fig. 7). In the installed state, the coupling unit 18 engages in the transverse recess 36. Similarly, the transverse recess 90 of the second connecting element 14 and the transverse recess 76 of the third connecting element 16 are provided for positive-locking coupling with the contact element 22. After the coupling element 12 is coupled with the blade adapter unit 10, the contact element 22 completely fills the transverse gap 36 (see fig. 7).

Fig. 7 shows a section through the wiper blade arrangement in the mounted state. Via the transverse recess 36 and the contact element 22, the connecting element 12 is pivotably supported at the blade adapter unit 10.

The first and second guiding elements are arranged at the sidewall portion 62 of the connecting element 12. The first and second guide elements face each other and abut at the inner surface of the connecting element 12. The first guide element and the second guide element can be formed, for example, in each case in a hemispherical manner. The first guide element and the second guide element are in an operating state and are being removed

In a first groove guide 32 of the groove guides 32 and in a second groove guide (not shown) arranged mirror-symmetrically to the first groove guide 32 with respect to the longitudinal symmetry plane 108. During pivoting of the connecting element 12 relative to the blade adapter unit 10 about the pivot axis 52, the guide element moves in the groove guide 32.

For disassembly, the connecting element 12 is released from the blade adapter unit 10. The end user lifts the connecting element 12 one-sidedly. For disassembly, the end user applies a lifting force in a lifting area 80 of the connecting element 12, which is arranged at the free end of the connecting element 12 (see fig. 1). The lifting force runs substantially parallel to the vertical direction 40. The lifting areas 80 are disposed opposite the side formations 44.

The gear unit 20 has two ramp surfaces 24, which are designed mirror-symmetrically with respect to a transverse plane of symmetry 106 and which partially offset the side wall 62 of the connecting element 12 during the removal process (see fig. 3 to 5). The ramp 24 encloses an acute angle with respect to the groove guide base surface 28. The ramp 24 abuts against the side wall of the groove guide 32, respectively. The component moving in one of the groove guides 32 slides first past the groove guide base 28 and then past the ramp 24, which draws it out of the groove guide 32.

When the connecting element 12 is lifted in the lifting region 80, it is pivoted about the pivot axis 52. The guide element of the connecting element 12 moves in the groove guide 32, which is configured mirror-symmetrically with respect to the longitudinal plane of symmetry 108, to the ramp 24. Next, the guide element is moved from the ramp 24 out of the groove guide 32. The ramp 24, which is constructed mirror-symmetrically with respect to the longitudinal plane of symmetry 108, rests on the guide element of the connecting element 12 during the removal process and applies a biasing force to the side wall 62 of the connecting element 12. The side wall portion 62 of the first connecting element 12 is thus elastically deflected.

The form-fitting coupling of the connecting element 12 to the contact element 22, which is embodied mirror-symmetrically with respect to the longitudinal plane of symmetry 108, is released by the elastically deflected side wall sections 62 of the connecting element 12. The connecting element 12 is released, in particular detached without destruction, from the coupling unit 18 via the gear unit 20 as a result of being lifted in the lifting region 80. The connecting element 12 is released from the blade adapter unit 10 by: the connecting element 12 is lifted unilaterally. During the removal process, the connecting element 12 is released from the blade adapter unit 10 by a lever effect, which results in that, in the installed state, the lifting region 80 is arranged on the other side of the contact element 22, which is configured radially symmetrically with respect to the longitudinal plane of symmetry 108, than the guide element of the connecting element 12.

The gear unit 20 has two further ramp surfaces 26, which are designed mirror-symmetrically with respect to the transverse plane of symmetry 106 and which support the ramp surfaces 24 during disassembly (see fig. 3 to 6).

The further ramp 26 is arranged for the case: the deflection of the side wall portion 62 of the connecting element 12 caused by the ramp 24 should be insufficient. This can be the case, for example, with a very thick wall thickness of the side wall 62.

Claims

1. Wiper blade device having a wiper blade adapter unit (10) having a coupling unit (18) which is provided for coupling with at least one connecting element (12, 14, 16), characterized in that the coupling unit (18) is provided for coupling with the connecting element (12, 14, 16) in at least one first position (102) of the connecting element (12, 14, 16) relative to the coupling unit (18) and in at least one second position (104) of the connecting element (12, 14, 16) relative to the coupling unit (18) twisted by at least substantially 180 °, wherein the coupling unit (18) has at least one transverse plane of symmetry (106) which is oriented at least substantially perpendicular to a longitudinal direction (110) of the wiper blade adapter unit (10) and about which the coupling unit (18) is configured at least substantially mirror-symmetrically, and wherein the blade adapter unit (10) has a transmission unit (20) which is configured at least substantially mirror-symmetrically with respect to a transverse plane of symmetry (106) and is provided for: the coupling between the connecting element (12, 14, 16) and the blade adapter unit (10) is released during the disassembly process.

2. The wiper blade device according to claim 1, characterized in that the wiper blade adapter unit (10) has at least one transverse plane of symmetry (106) which is oriented at least substantially perpendicularly to the longitudinal direction (110) of the wiper blade adapter unit (10) and about which the wiper blade adapter unit (10) is constructed at least substantially mirror-symmetrically.

3. The wiper blade device as claimed in claim 1 or 2, characterized in that the wiper blade adapter unit (10) has at least one longitudinal plane of symmetry (108) which is oriented at least substantially parallel to a longitudinal direction (110) of the wiper blade adapter unit (10) and about which the wiper blade adapter unit (10) is constructed at least substantially mirror-symmetrically.

4. The wiper blade device according to claim 3, characterized in that the coupling unit (18) has at least two separate coupling elements (112, 114) which are arranged on mutually opposite sides of the longitudinal symmetry plane (108) of the wiper blade adapter unit (10) and are arranged at a distance from the longitudinal symmetry plane (108) of the wiper blade adapter unit (10).

5. Wiper blade device according to claim 1 or 2, characterized in that the coupling unit (18) is provided for coupling with at least two differently shaped connecting elements (12, 14, 16).

6. The wiper device according to claim 1 or 2, characterized in that the drive unit (20) has at least two ramp surfaces (24) which are designed at least substantially mirror-symmetrically with respect to a transverse plane of symmetry (106) and are provided for: at least one side wall portion (62) of the connecting element (12, 14, 16) is at least partially displaced during the disassembly process.

7. The wiper device according to claim 6, characterized in that the drive mechanism unit (20) has at least two further ramp surfaces (26) which are designed at least substantially mirror-symmetrically with respect to a transverse plane of symmetry (106) and are provided for: supporting the ramp (24) during disassembly.

8. The wiper device according to claim 1 or 2, characterized in that the wiper adapter unit (10) has at least two longitudinal webs (46, 48) which run at least substantially parallel to one another and which are provided for connection to at least one further wiper element of at least one wiper blade (58).

9. The wiper device according to claim 1 or 2, characterized in that the wiper blade adapter unit (10) is constructed in one piece.

10. A blade adapter unit for a blade arrangement according to any one of claims 1 to 9.

11. Wiper blade with a wiper blade arrangement according to one of claims 1 to 9.