CN106515669B

CN106515669B - Wiper blade device

Info

Publication number: CN106515669B
Application number: CN201610812640.1A
Authority: CN
Inventors: H.德庞特
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2015-09-11
Filing date: 2016-09-09
Publication date: 2021-07-30
Anticipated expiration: 2036-09-09
Also published as: FR3040947A1; CN106515669A; FR3040947B1; DE102015217405A1

Abstract

A wiper blade arrangement is proposed, comprising at least one holding unit (10 a; 10 b; 10 c) having a receiving region (12 a; 12 b; 12 c) for a wiper blade adapter (14 a; 14 b; 14 c), at least one spring strip groove (16 a; 16 b; 16 c) for at least one spring strip (18 a; 18 b; 18 c) and at least one fastening recess (20 a, 22a, 24a, 26a, 28a, 30 a; 20b, 22b, 24b, 26b, 28b, 30 b; 20c, 22c, 24c, 26c, 28c, 30 c), the fastening recess is provided for fastening the wiper blade adapter (14 a; 14 b; 14 c) and has a smaller extension along the spring rail groove (16 a; 16 b; 16 c) than the extension of the receiving region (12 a; 12 b; 12 c) along the spring rail groove (16 a; 16 b; 16 c).

Description

Wiper blade device

Background

A wiper blade arrangement with at least one retaining unit has already been proposed, wherein the retaining unit has a receiving region for a wiper blade adapter and at least one spring rail groove for at least one spring rail.

Disclosure of Invention

A wiper blade arrangement is proposed with at least one holding unit having a receiving region for a wiper blade adapter and at least one spring rail groove for at least one spring rail and at least one fastening recess which is provided for fastening the wiper blade adapter, the extension of the fastening recess along the spring rail groove being smaller than the extension of the receiving region along the spring rail groove. With the inventive design, a wiper blade arrangement can be provided which enables a particularly reliable fixing of the spring rail and the wiper blade adapter by means of the retaining unit.

The term "holding unit" is understood to mean, in particular, a unit which is provided for connecting at least one wind deflector, at least one spring strip, at least one wiper strip and/or at least one wiper blade adapter to one another, in particular to one another. The holding unit is provided in particular for accommodating the spring rails at least partially, in particular at least largely, particularly preferably completely, in the circumferential direction. "at least predominantly" in this connection means in particular more than 50%, preferably more than 80%, particularly preferably more than 95%. In particular for accommodating the wiper blade adapter, the holding unit at least partially, preferably at least largely, particularly preferably completely, forms an accommodating region for the wiper blade adapter. By "receiving region for a wiper blade adapter" is meant in particular a region and/or a section of the holding unit which is provided, in particular, to at least partially receive the wiper blade adapter. Preferably, the receiving area is at least free of wind-blocking elements. "provided" means in particular specially designed and/or provided. "an item is provided for a certain function" means in particular that the item fulfils and/or carries out said certain function in at least one state of use and/or operation.

"wiper blade adapter" is in particular in connection with an adapter which has a contact area which is in contact with a wiper blade component, in particular a spring strip, and which is connected to the wiper blade component in the mounted state in a non-releasable manner and which is provided for providing a coupling area of the wiper blade component for coupling and/or contacting with a wiper arm adapter. "wiper arm adapter" refers in particular to an adapter which has a contact area for contacting a wiper arm component and is connected non-detachably to the wiper arm component and is provided for providing a coupling area of the wiper arm component for coupling and/or contacting the wiper arm adapter.

For accommodating the spring rails, the retaining unit forms at least partially, preferably at least largely, the spring rail groove. "spring rail groove" is understood to mean, in particular, a groove which is provided to receive a spring rail. The "extension" of an object means in particular the maximum distance between two points of the perpendicular projection of the object on a plane. "longitudinal" refers in particular to the main direction of extension of the spring rail groove. The "main extension direction" of an object is in particular a direction parallel to the longest side of a virtual minimum geometric cube that exactly surrounds the object. Advantageously, the spring rail groove has a closed contour in at least one plane.

"spring strip" means in particular a macroscopic component which has at least an extension which can be elastically changed by at least 10%, in particular at least 20%, preferably at least 30%, particularly advantageously at least 50%, in the normal operating state, and which in particular generates a counter force which is dependent on a change in the extension, preferably proportional to the change, and which counteracts such a change. Preferably, the spring rails are made at least partially of spring steel. Preferably, the spring rails have substantially the shape of a bent rod in the unloaded state, particularly advantageously a flat bent rod. Furthermore, the spring rails are advantageously constructed in one piece. Alternatively, the spring rails can also be of a multi-component design. It is particularly advantageous if the curvature of the spring rails along the spring rails in the unloaded state is greater than the curvature of a vehicle surface of the motor vehicle, in particular the curvature of a vehicle window, along which the spring rails are guided in at least one operating state. "elastic article" is intended to mean, in particular, an article which can be deformed repeatedly without mechanically damaging or destroying the article, and which automatically returns to its original shape, in particular after deformation.

The fastening recess is provided in particular for accommodating at least one fastening means, in particular of a wiper blade adapter. The fixing groove, in particular the wall of the object with the fixing groove defining the fixing groove, is advantageously provided for preventing the object arranged at least partially in the fixing groove from moving. The fastening recess is provided in particular for at least partially accommodating the wiper blade adapter. In particular, the holding unit at least partially encloses the wiper blade adapter, especially viewed along the spring rail groove. By "one article at least partially sandwiches another article" is meant, in particular, that there is at least one straight line which first extends through the first article, then through the other article, and then through the first article. The fixing groove is in particular a vertical groove. "vertical groove" means in particular a groove which passes at least largely, preferably completely, through at least one object in at least one vertical direction. "vertical direction" in particular means a direction which extends at least substantially perpendicularly to the surface to be brushed by the wiper strip. Preferably the vertical direction extends perpendicular to the brushing direction. "brushing direction" in particular means a direction which runs parallel to the surface to be brushed and in particular runs at least substantially perpendicular to the longitudinal and vertical directions. Furthermore, the vertical direction advantageously runs perpendicular to the longitudinal direction of the wiper strip. The fixing groove preferably has a rectangular cross section. The term "at least substantially perpendicular" here especially defines an orientation of a direction relative to a reference direction, wherein the direction and the reference direction, especially viewed in a plane, enclose an angle of 90 °, which has especially a maximum deviation of especially less than 20 °, advantageously less than 10 °, especially advantageously less than 5 °.

"wind-guard element" is in particular a component which is provided to counteract air jets acting on the wiper blade arrangement or to counteract driving wind and/or to press the wiper strip against the surface to be brushed. The wind deflector is preferably at least partially made of rubber and/or at least partially made of an elastic plastic. Preferably the wind-shield member has at least one concave flushing surface. The wind-blocking part is offset in particular from the end cap, the wiper strip and/or the wiper blade adapter. Advantageously, the wind deflector extends in the longitudinal direction over at least a part, preferably at least a majority, of the extension of the wiper blade arrangement in the operating state. The wind-blocking element is preferably constructed in one piece. "wiper strip" in particular relates to a strip which is provided for brushing the glass of a vehicle. The wiper strip is preferably made of a rubber material.

In particular, the wind deflector and/or at least the wiper strip are arranged at least partially, preferably at least largely, on the holding unit, in particular are at least partially integrally formed with the holding unit. Furthermore, it is preferred that the windshield, the wiper strip and/or the retaining unit are produced in one piece by a coextrusion process. By "at least partially integrally" is meant, in particular, that at least one component of at least one object and/or at least one first object is constructed integrally with at least one component of at least one further object and/or is constructed integrally with at least one further object. "integrally" is intended to mean, in particular, at least a material-to-material connection, for example, by means of a welding process, an adhesive process, an injection molding process and/or another process which appears to be expedient to the person skilled in the art. "integrally" is advantageously also intended to mean "integrally". "integrally" means in particular that it is formed from one component part. This component part is preferably produced from individual blanks, blocks and/or castings, particularly preferably by injection molding, in particular by single-component and/or multi-component injection molding.

The extent of the fixing recess along the spring rail groove is advantageously at most 90%, preferably at most 70%, particularly preferably at most 50% and/or in particular at least 10%, preferably at least 20%, particularly preferably at least 30% of the extent of the receiving region along the spring rail groove. This makes it possible to precisely position the wiper blade adapter on the holding unit, in particular during installation.

Furthermore, it is proposed that the retaining unit has at least one further fixing groove, which is at least partially, preferably completely, configured in accordance with the fixing groove and is arranged offset with respect to the fixing groove along the spring rail groove. This advantageously makes it possible to distribute the force uniformly over the holding unit. "two articles are at least partially congruent" means in particular that the two articles have at least openings of the same size, in particular their main extension faces have in particular the same contour and/or the same shape. The two articles are in particular identical if their main extension faces coincide. The "main extension plane" of an object is in particular the largest side of the smallest virtual geometric cube that exactly completely surrounds the object. The fixing groove and the further fixing groove are arranged in particular offset to one another, so that their projections, viewed in the brushing direction, at least partially overlap. The fastening groove and the further fastening groove are arranged, in particular, on mutually opposite different sides of the holding unit, in particular, as viewed along the spring rail groove. The fixing groove and the further fixing groove are preferably arranged rotationally symmetrically about a central axis of rotation of the holding unit. "central axis of rotation" is understood to mean, in particular, an imaginary axis of rotation which extends at least to a large extent through the center of gravity of the object. In the present case, the central axis of rotation extends at least substantially perpendicularly to the longitudinal direction, in particular perpendicularly to the surface to be brushed. The holding unit has in particular an additional fixing groove.

It is further proposed that the wiper blade arrangement has a spring rail which is provided in particular for accommodating into a spring rail groove and has at least one latching recess which, in the mounted state of the spring rail, at least partially overlaps the fastening recess. A particularly stable connection between the spring rails, the retaining unit and the wiper blade adapter can thereby be produced. Advantageously, at least the locking groove and at least the fixing groove are at least partially superposed one above the other. "at least partially superimposed" means in particular that the main extension faces of the two items are at least partially covered. In particular, the locking recess, in particular its main extension, overlaps at least 10%, preferably at least 20%, particularly preferably at least 30% and/or at most 70%, preferably at most 60%, particularly preferably at most 50%, with the fixing recess, in particular its main extension.

It is further proposed that the spring rail has at least one further locking groove, which is configured in accordance with the locking groove and is arranged along the spring rail offset relative to the locking groove. This makes it possible to distribute the force uniformly over the spring rails. The locking groove and the further locking groove are arranged, in particular, on different sides of the spring rail, in particular, opposite to each other, as viewed along the spring rail groove. The locking groove and the further locking groove are preferably arranged rotationally symmetrically about a central rotational axis of the spring bar. In particular, it is conceivable for the retaining unit to have additional latching recesses.

It is further proposed that the wiper blade device has a wiper blade adapter which has at least one fastening means which is arranged at least partially in the fastening recess in the installed state. This makes it possible to secure the wiper blade adapter to the holding unit. In particular, the extension of the fastening means along the spring rail groove is smaller than the fastening groove, in particular by at least 60%, preferably by at least 80%, particularly preferably by at least 100%. In particular, at least 10%, preferably at least 20%, particularly preferably at least 30% and/or at most 70%, preferably at most 60%, particularly preferably at most 50% of the main extension surface of the fixing means overlaps the fixing groove.

It is further proposed that the wiper blade adapter has at least one further fastening means which is of identical construction to the fastening means and is arranged offset with respect to the fastening means along the spring rail groove. This makes it possible to distribute the force uniformly to the wiper blade adapter. The fastening means and the further fastening means are arranged, in particular, on mutually opposite different sides of the wiper blade adapter, in particular, as viewed along the spring rail groove. The fastening means and the further fastening means are preferably arranged rotationally symmetrically about a central axis of rotation of the wiper blade adapter. In particular, it is conceivable for the wiper blade adapter to have an additional retaining mechanism.

Furthermore, it is proposed that the fastening means be provided for at least partially enclosing the spring rail. The wiper blade adapter can thereby be fixed to the spring rail in the vertical direction. The fixing means in particular have a guide groove which is provided for guiding the spring rail.

It is further proposed that the wiper blade adapter has at least one locking mechanism which is provided for at least partial insertion into the locking recess and the fastening recess in the mounted state. The spring rails can thereby be fixed along the spring rail grooves relative to the retaining unit and the wiper blade adapter.

In an advantageous embodiment of the invention, it is provided that the locking mechanism is designed as a bolt-type part. This allows simple assembly. The locking mechanism is preferably constructed as a separate component. The wiper blade adapter has in particular at least one receiving recess which is provided for at least partially receiving the locking mechanism. The locking mechanism can be configured in particular as a screw.

In a preferred embodiment of the invention, it is provided that the locking mechanism is designed as a latching hook. This advantageously makes it possible to install without tools. In particular, the locking mechanism is at least substantially integrally connected with the wiper blade adapter. "latching hook" is understood to mean, in particular, a spring mechanism for producing a latching connection, which is provided for elastic deflection during installation.

In a preferred embodiment, it is provided that the wiper blade adapter is designed at least in two-component fashion, preferably in multiple-component fashion. This simplifies the production, since complex components such as wiper blade adapters cannot be extruded, in particular because of their shape, but can be easily assembled from two or more extruded components. The wiper blade adapter advantageously has a first component and a second component, which can be connected to one another in a form-fitting and/or force-fitting manner. The first and/or second component preferably have form-fitting parts which are configured in particular in correspondence with one another. The first component preferably has at least one fastening means and the second component in particular has at least one locking means. In an alternative design, only the first component or only the second component may have a fixing mechanism and a locking mechanism.

A method for mounting a wiper blade arrangement is proposed, wherein a wiper blade adapter is arranged at least partially in a receiving region, a spring rail is inserted into a spring rail groove in such a way that a locking recess at least partially overlaps a securing recess, and the spring rail is secured by means of a locking mechanism, the securing recess and the locking recess. This makes it possible to secure the spring rails and the wiper blade adapter particularly reliably by means of the retaining unit.

The wiper blade device of the present invention is not limited to the above-described applications and embodiments. In particular, the wiper blade device according to the invention can have a number of components, components and units differing from the number mentioned therein for the purpose of achieving the operating mode described here.

Drawings

Other advantages can be derived from the following description of the figures. Three embodiments of the invention are shown in the drawings. The figures, description and claims contain a number of combinations of features. The person skilled in the art can also examine these features individually and can combine them into other advantageous combinations depending on the purpose.

Wherein:

fig. 1 is a side view of a wiper with a wiper arm and a wiper blade having a wiper blade arrangement;

FIG. 2 is an exploded view of a portion of a wiper blade assembly with a retaining unit, spring bar and wiper blade adapter;

fig. 3a, b are top views of a holding unit and a part of a spring bar;

FIG. 4 is a bottom perspective view of a portion of the wiper blade adapter;

fig. 5a, b are half sectional views of a part of the wiper blade device during installation;

FIG. 6 is an exploded view of a portion of another wiper blade assembly with a retaining unit, spring bar and wiper blade adapter;

fig. 7 is a perspective view of a portion of the wiper blade adapter of fig. 6 in a disassembled state;

fig. 8 is a half sectional view of a portion of the alternative wiper blade assembly of fig. 6 during installation;

FIG. 9 is an exploded view of a portion of another alternative wiper blade assembly with a retaining unit, spring bar and wiper blade adapter;

fig. 10 is a perspective view of the wiper blade adaptor of fig. 9 in a disassembled state.

Detailed Description

Fig. 1 shows a side view of a wiper with a wiper arm 52a and a wiper blade 53a, which has a wiper blade arrangement. The wiper blade 53a is configured as a flat wiper blade. The wiper blade 53a is provided for cleaning the vehicle glass 54 a. The wiper arm 52a has a wiper arm adapter 56 a. The wiper arm adapter 56a is configured in a manner known to those skilled in the art, such as being configured as a top or side lock adapter. The wiper arm 52a is provided for fixing to a drive shaft 58a of the wiper. The drive shaft 58a is designed to be reciprocally (oszillierend) rotatable by a drive motor not shown in detail. The wiper blade 53a has a wiper blade device. The wiper blade device has a wiper blade adapter 14 a. The wiper blade adapter 14a is provided for coupling with the wiper arm adapter 56a, in particular by means of further components which are not shown. The wiper blade adapter 14a is releasably connected to the wiper arm adapter 56a in a manner known to those skilled in the art.

The wiper blade device has a first wind shielding member 62 a. The first wind blocking member 62a is provided to resist the traveling wind and to generate pressing force of the wiper blade device toward the vehicle glass 54 a. The first wind-shield part 62a extends over almost half of the entire longitudinal extension of the wiper blade arrangement. The wiper blade device has a second wind blocking member 64 a. Alternatively or additionally, the wiper blade device may have a plurality of wind-blocking parts different from two. The second wind shielding member 64a is configured separately from the first wind shielding member 62 a. The first wind deflector 62a and the second wind deflector 64a are configured mirror-symmetrically to each other. The second wind blocking member 64a is provided to block the traveling wind and to generate a pressing force of the wiper blade device toward the vehicle glass 54 a. The second wind blocking member 64a extends almost over half of the entire longitudinal extension of the wiper blade device. The wiper blade device further includes a holding unit 10 a. The holding unit 10a has

end sections

66a, 68a at opposite free ends. The wiper blade arrangement has two

end caps

70a, 72 a. The

end sections

66a, 68a of the holding unit 10a carry

end caps

70a, 72 a. The end caps 70a, 72a enclose the wiper blade arrangement in the longitudinal direction 74. The longitudinal direction 74a extends parallel to the main extension direction of the wiper blade arrangement.

Fig. 2 shows an exploded view of a part of a wiper blade device with a holding unit 10a, a spring bar 18a and a wiper blade adapter 14 a. The holding unit 10a connects at least one spring bar 18a of the wiper blade device and the wiper blade adapter 14a to each other in the mounted state. Alternatively and/or additionally, the holding unit 10a connects the spring bar 18a, the wiper blade adapter 14a, the

wind shield parts

62a, 64a and/or the wiper strip 60a of the wiper blade arrangement to one another. Two

wind blocking members

62a, 64a are provided on the majority of the holder unit 10 a. The

wind blocking members

62a, 64a are configured integrally with the holding unit 10 a. The

wind blocking members

62a, 64a have concave flow surfaces. The wind-blocking

parts

62a, 64a are at least partially made of rubber and/or at least partially made of an elastic plastic. The holding unit 10a has a receiving region 12a for a wiper blade adapter 14 a. The receiving area 12a has an at least substantially planar support surface 78 a. The support surface 78a is used to position the wiper blade adapter 14 a. The holding unit 10a has an at least substantially closed spring rail groove 16 a. The spring bar groove 16a is formed mostly by the holding unit 10 a. The spring bar groove 16a is provided to receive a spring bar 18a of the wiper blade assembly. The spring bar groove 16a has an at least substantially rectangular cross section. The spring bar 18a has an elongated, flat shape. The spring bar 18a has an at least substantially rectangular cross-section. The spring rails 18a are chamfered at their free ends. The chamfered end is provided to serve as an insertion aid 76a for insertion into the spring bar groove 16 a. The spring rails 18a are made of spring steel. The spring rails 18a are constructed in one piece. Alternatively or additionally, it is also conceivable for the spring rails 18a to be of multi-component design, in particular to be formed from two or more spring rail sections extending next to one another. The wiper strip 60a is mostly disposed on the holding unit 10 a. Further, the wiper strip 60a is integrally configured with the holding unit 10 a. The wiper strip 60a is made of rubber.

Fig. 3a is a top view of the holding unit 10a and a part of the spring bar 18 a. Fig. 3a shows the holding unit 10a and the spring rail 18a side by side. The holding unit 10a has a fixing groove 20 a. The fixing groove 20a is provided in the middle section of the holder unit 10 a. The fixing groove 20a is provided inside the accommodation region 12 a. The fixing groove 20a is configured as a vertical groove. The fixing groove 20a has an at least substantially rectangular cross section. Alternatively, the cross section may have any shape as long as the shape is adapted to the shape of the member corresponding to the fixing groove 20 a. The extension of the fastening recess 20a along the spring rail groove 16a is smaller than the extension of the receiving region 12a along the spring rail groove 16 a. Furthermore, the extension of the fastening recess along the spring rail groove 16a is less than 50% of the extension of the receiving region 12a along the spring rail groove 16 a. The holding unit 10a has another fixing groove 22 a.

The further fastening recess 22a is at least substantially identical to the fastening recess 20 a. A further fastening recess 22a is arranged along the spring rail groove 16a offset with respect to the fastening recess 20 a. When the fixing groove 20a is imaged toward the other fixing groove 22a in the brushing direction 80a, they partially overlap. The fixing groove 20a and the further fixing groove 22a are arranged on different sides of the retaining unit 10a facing each other, viewed along the spring rail groove 16 a. The fixing groove 20a and the further fixing groove 22a are arranged rotationally symmetrically about a central axis of rotation 82a of the holding unit 10 a. The central axis of rotation 82a is here at least substantially perpendicular to the plane formed by the brushing direction 80a and the longitudinal direction 74 a.

The holding unit 10a also has four

additional fixing grooves

24a, 26a, 28a, 30 a. However, it is also conceivable for the retaining unit 10a to have a plurality of

additional fastening recesses

24a, 26a, 28a, 30a, which are different from four. In the following, the same named objects are distinguished in particular by the terms "an object", "another object" and "additional object". An item, another item, and additional items are all ascribed to the term "item". Four

additional fastening recesses

24a, 26a, 28a, 30a are provided on the retaining unit 10a inside the receiving region 12 a. The

additional fastening recesses

24a, 26a, 28a, 30a are at least substantially formed in accordance with the fastening recess 20a and the further fastening recess 22 a.

Additional fastening recesses

24a, 26a, 28a, 30a are arranged offset to one another on the retaining unit 10 a.

Additional fastening recesses

24a, 26a, 28a, 30a are provided on different sides of the retaining unit 10a facing each other, viewed along the spring rail groove 16 a. Here, two

additional fixing recesses

24a, 26a are located on the side of the fixing recess 20 a. Two additional fixing

recesses

28a, 30a are located on the side of the other fixing recess 22 a. The fastening recess 20a, the further fastening recess 22a and the

additional fastening recesses

24a, 26a, 28a, 30a are arranged rotationally symmetrically about the central axis of rotation 82 a. The arrangement of the fixing

grooves

20a, 22a, 24a, 26a, 28a, 30a has a double rotational symmetry.

The holding unit 10a may be manufactured by a co-extrusion method. The holding unit 10a may be manufactured integrally with the wiper strip 60a and the

wind shielding members

62a, 64 a. The receiving region 12a and the fastening recess 20a, the further fastening recess 22a and the

additional fastening recesses

24a, 26a, 28a, 30a can be cut out of the holding unit 10a of the wiper strip 60a and/or of the wind-blocking

parts

62a, 64 a.

The spring bar 18a has a locking groove 32 a. A locking groove 32a is provided in the middle section of the spring bar 18 a. The locking groove 32a is a vertical groove. In the present case, the locking groove 32a has an at least substantially rectangular cross section. Alternatively, the cross section may have any shape as long as the shape is adapted to the member corresponding to the locking groove 32 a. The extension of the locking recess 32a along the spring bar groove 16a is smaller than the extension of the fixing recess 20a along the spring bar groove 16 a. Furthermore, the extension of the locking groove 32a along the spring bar groove 16a74a is equal to at most 50% of the extension of the fixing groove 20a along the spring bar groove 16 a. In the mounted state of the spring rail 18a, at least 30% and/or at most 50% of the latching recess 32a overlaps the fastening recess 20 a. Furthermore, the spring rail 18a has a further locking recess 34 a. However, additionally and/or alternatively, the spring rails can also have additional locking recesses. The further locking recess 34a is at least substantially congruent with the locking recess 32 a. The locking recess 32a and the further locking recess 34a are arranged offset to one another along the spring rail groove 16 a. The projections of the locking recess 32a and the other locking recess 34a in the brushing direction 80a do not overlap. The locking recess 32a and the further locking recess 34a are arranged on different sides of the spring bar 18a, viewed along the spring bar groove 16a, which sides are opposite to one another. The locking groove 32a and the further locking groove 34a are arranged rotationally symmetrically about a central rotational axis 84a of the spring rail 18 a. In the mounted state, the central axis of rotation 84a is at least substantially identical to the central axis of rotation 82a of the holding unit 10 a. Alternatively and/or additionally, the spring bar may have an additional locking groove.

Fig. 3b is a top view of the holding unit 10a and a part of the spring bar 18 a. Fig. 3 schematically shows the mounted state of the spring bar 18a and the holding unit 10 a. The spring bar 18a is inserted into the spring bar groove 16 a. The spring strip 18a is positioned such that the fixing groove 20a and the locking groove 32a and the further fixing groove 22a and the further locking groove 34a at least partially overlap, overlap and/or at least partially overlap.

Fig. 4 is a bottom perspective view of a portion of the wiper blade adapter. The wiper blade adapter 14a has a fixing mechanism 36 a. When installed, the securing mechanism 36a is at least partially disposed in the securing recess 20 a. The fastening means 36a at least partially encases the spring rail 18a in the mounted state. Furthermore, the fixing means 36 has at least one guide groove which is provided for guiding the spring rail 18 a. The wiper blade adapter 14a has a further fastening means 38a which is configured identically to the fastening means 36 a. The extension of the fastening means 38a and/or of the further fastening means 40a along the spring rail groove 16a is equal to 50% of the extension of the fastening recess 20a and/or of the further fastening recess 22a along the spring rail groove 16 a. The fixing mechanism 36a and the other fixing mechanism 38a are disposed on different sides of the wiper blade adapter 14a opposite to each other. Furthermore, the wiper blade adapter 14a has four additional fastening means 40a, 42a, 44a, 46 a. Alternatively or additionally, the wiper blade adapter can also have a plurality of additional fastening means 40a, 42a, 44a, 46a, which are different from four. The extent of the fixing means 36a and the further fixing means 38a along the spring rail groove 16a amounts to at most 50% of the extent of the additional fixing means 40a, 42a, 44a, 46a along the spring rail groove 16 a. The extent of the additional fastening means 40a, 42a, 44a, 46a along the spring rail groove 16a is at least substantially equal to the extent of the fastening recesses 20a, 22a, 24a, 26a, 28a, 30a along the spring rail groove 16 a. Furthermore, two additional fastening means 40a, 42a, 44a, 46a are provided on different sides of the wiper blade adapter 14a which are opposite one another. The fastening means 36a, 38a, 40a, 42a, 44a, 46a are arranged in the mounting state at least partially in the fastening recesses 20a, 22a, 24a, 26a, 28a, 30 a.

The wiper blade adapter 14a has a locking mechanism 48 a. The locking mechanism 48a is inserted into the locking groove 32a and the fixing groove 20a in the mounted state. Advantageously, the locking mechanism 48a has an at least substantially circular cross-section. Alternatively, the cross-section may have any shape as long as the shape is adapted to the member corresponding to the locking mechanism. The extension of the locking mechanism 48a along the spring bar groove 16a is smaller than the extension of the fixing groove 20a along the spring bar groove 16 a. Furthermore, the extension of the locking mechanism 48a along the spring rail groove 16a is at most equal to 50% of the extension of the fixing groove 20a along the spring rail groove 16 a. In the mounted state, at least 30% and/or at most 50% of the locking means 48a overlap the fixing recess 20 a. Furthermore, the wiper blade adapter 14a has another locking mechanism 50 a. However, in addition and/or alternatively, the wiper blade adapter can also have an additional locking mechanism. The other locking mechanism 50a is configured identically to the locking mechanism 48 a. The locking mechanism 48a and the further locking mechanism 50a are arranged offset to each other along the spring bar groove 16 a. The projections of the locking mechanism 48a and the further locking mechanism 50a in the brushing direction 80a do not overlap. The locking mechanism 48a and the further locking mechanism 50a are arranged on different sides of the wiper blade adapter 14a, which sides are opposite to each other, as viewed along the spring bar groove 16 a. The locking mechanism 48a and the further locking mechanism 50a are arranged rotationally symmetrically about a central rotational axis 86a of the holding unit 10 a. In the mounted state, the central axis of rotation 86a of the wiper blade adapter 14a is at least substantially identical to the central axis of rotation 82a of the holding part. In the present case, the locking mechanism 48a and the further locking mechanism 50a are constructed as separate components. The wiper blade adapter 14a has an accommodating recess 88a provided to accommodate the lock mechanism 48 a. Further, the wiper blade adapter 14a has another receiving groove 88a provided to receive another locking mechanism 50 a. Alternatively and/or additionally, the wiper blade adapter 14a has additional receiving

grooves

88a, 90 a. In the present case, the locking

mechanisms

48a, 50a are at least substantially of a bolt-type design. It is also conceivable for the locking

mechanisms

48a, 50a to have a conical shape. Advantageously, the

locking mechanism

48a, 50a is configured as a screw. Further advantageously, the

housing recesses

88a, 90a are threaded. Furthermore, the form-fitting and/or force-fitting connection of the locking means 48a, 50a to the receiving recesses 88a, 90aa can be designed in a particularly advantageously robust manner known to the person skilled in the art.

In fig. 5a and 5b, a part of a wiper blade device is shown in a half-sectional view during installation. In the mounting step, in order to fix the wiper blade adapter 14a on the holder unit 10a, the wiper blade adapter 14a is disposed at the fixing

grooves

20a, 22a, 24a, 26a, 28a, 30a of the holder unit 10a in the vertical direction 102a (see fig. 2). The spring rail groove 16a opens in the region of the fastening recesses 20a, 22a, 24a, 26a, 28a, 30a in the brushing direction 80 a. The fastening means 36a, 38a, 40a, 42a, 44a, 46a are at least partially inserted into the

fastening grooves

20a, 22a, 24a, 26a, 28a, 30 a. Further, the spring bar 18a is inserted into the spring bar groove 16 a. The guide grooves of the fixing

mechanisms

36a, 38a, 40a, 42a, 44a, 46a serve to guide the spring bar 18 a. In the mounted state, the spring rails 18a are thus located in the spring rail grooves 16a, so that the fastening recesses 20a, 22a, 24a, 26a, 28a, 30a of the retaining unit 10 at least partially overlap the latching recesses 32a, 34a of the spring rails 18 a. In the mounting step, as shown in fig. 5b, for fixation, the locking

mechanisms

48a, 50a are fixed at the

accommodating grooves

88a, 90a of the wiper blade adapter 14 a. Furthermore, the locking

mechanisms

48a, 50a are at least partially disposed in the fixing

grooves

20a, 22a, 24a, 26a, 28a, 30a and the locking

grooves

32a, 34 a.

Other embodiments of the present invention are shown in fig. 6-10. The following description and the figures are primarily limited to the differences between the exemplary embodiments, wherein reference is made to the figures and/or descriptions of the other exemplary embodiments, in particular to fig. 1 to 5, for components having the same designation, in particular for components having the same reference numerals. To distinguish between these embodiments, the letter a is added after the reference numerals of the embodiments of fig. 1-5. In the embodiment of fig. 6-10, letter a is replaced with letters b and c.

Fig. 6 shows an exploded view of a part of another wiper blade device with a holding unit 10b, a spring bar 18b and a wiper blade adapter 14 b. In the present case, the wiper blade adapter 14b is of two-component construction (see fig. 6). Alternatively and/or additionally, the wiper blade adapter can also be designed in a three-component, four-component and/or multi-component manner.

Fig. 7 is a perspective view showing a part of the wiper blade adaptor 14b of fig. 6 in a disassembled state. The wiper blade adapter 14b has a first member. The first member is configured to contain the cell 92 b. The containing unit 92b has four sidewalls connected to each other. The receiving unit 92b is at least substantially rectangular in plan view. Further, the wiper blade adapter 14b has a second member. The other member is a cover unit 94 b. The cover unit 94b is at least substantially plate-shaped. In the present case, the cover unit 94b has the fastening means 36b, 38b, 40b, 42b, 44b, 46 b. Further, the cover unit 94b has locking

mechanisms

48b, 50 b. The locking

mechanisms

48b, 50b are at least partially disposed on the fixed

mechanisms

36b, 38b, 40b, 42b, 44b, 46b via

swing arms

98b, 100 b. The locking

mechanisms

48b, 50b are configured as snap hooks. When mounted, the receiving unit 92b and the covering unit 94b of the wiper blade adapter 14b are connected to one another by means of a form fit and/or a force fit. To connect these components, the wiper blade adapter 14b has a coupling unit 96 b. The containing unit 92b may have a clamping hook. The cover unit 94b may have a clamping edge corresponding to the clamping member. The clamping hook and the clamping edge can in the present case form a coupling unit 96b of the wiper blade adapter 14 b. Alternatively, the containing unit 92b may have a clamping edge, and the covering unit 94b may have a clamping hook. Alternatively, the cover unit 94b can rest at least partially on a side wall of the receiving unit, so that the receiving unit is connected to the holding unit 10b and the cover unit 94b in a form-fitting manner in the installed state of the wiper blade device. The coupling unit 96b can be designed in a particularly advantageous manner known to the person skilled in the art for positively and/or non-positively connecting the cover unit 94b with the receiving unit 92 b.

Shown in fig. 8 is a half sectional view of a portion of another wiper blade apparatus of fig. 6 during installation. In the present case, the wiper blade adapter 14b is of two-component construction. In order to fix the wiper blade adapter 14b to the holder unit 10b, the containing unit 92b is provided at the fixing grooves 20b, 22b, 24b, 26b, 28b, 30b of the holder unit 10b in the vertical direction 102b (see fig. 6). Further, a covering unit 94b is provided on the containing unit 92 b. The cover unit 94b and the receiving unit 92b are connected to one another by means of a coupling unit 96b in a form-fitting and/or force-fitting manner. If the spring bar 18b is inserted into the spring bar groove 16b, the insertion aid 76b of the spring bar 18b deflects the

locking mechanism

48b, 50 b. The locking

mechanisms

48b, 50b are arranged for deflection by the

swing arms

98b, 100b of the spring bar 18 b. In the mounted state, the spring rails 18b are suitably arranged in the spring rail grooves 16b such that the fixing grooves 20b, 22b, 24b, 26b, 28b, 30b of the holding unit 10 and the locking grooves 32b, 34b of the spring rails 18b at least partially overlap. The

swing arms

98b, 100b are elastically restored. The locking

mechanisms

48b, 50b are at least partially disposed in the securing recesses 20b, 22b, 24b, 26b, 28b, 30b and the locking recesses 32b, 34 b.

Fig. 8 shows an exploded view of a part of a further alternative wiper blade device with a holding unit 10c, a spring bar 18c and a wiper blade adapter 14 c. Fig. 10 is a perspective view showing the wiper blade adaptor 14a of fig. 9 in a detached state. In the present case, the cover unit 94c of the wiper blade adapter 14c has the fastening means 36c, 38c, 40c, 42c, 44c, 46 c. In the present case, the containing unit 92c has locking

mechanisms

48c, 50 c. The locking

mechanisms

48c, 50c are provided on the side walls of the containing unit 92 by means of

swing arms

98c, 100 c. The locking

mechanisms

48c, 50c are integrally connected with the

swing arms

98c, 100 c. In the present case, the coupling unit 96c of the wiper blade adapter 14c is formed in such a way that the cover unit 94c is arranged on the

locking mechanism

48c, 50c in a form-fitting manner during installation. Here, the fastening means 36c, 38c, 40c, 42c, 44c, 46c are inserted into the fastening recesses 20c, 22c, 24c, 26c, 28c, 30c of the holding unit 10c and at least partially into the locking recesses 32c, 34c of the spring rail 18 c. In the mounted state, the receiving unit 92c is fixed in a form-fitting manner between the holding unit 10c and the covering unit 94 c.

Claims

1. A wiper blade device having at least one holding unit (10 a; 10 b; 10 c) which has a receiving region (12 a; 12 b; 12 c) for a wiper blade adapter (14 a; 14 b; 14 c), at least one spring strip groove (16 a; 16 b; 16 c) for at least one spring strip (18 a; 18 b; 18 c) and at least one fastening groove (20 a, 22a, 24a, 26a, 28a, 30 a; 20b, 22b, 24b, 26b, 28b, 30 b; 20c, 22c, 24c, 26c, 28c, 30 c) which is provided for fastening the wiper blade adapter (14 a; 14 b; 14 c) and whose extension along the spring strip groove (16 a; 16 b; 16 c) is smaller than the extension of the receiving region (12 a; 12 b; 12 c) along the spring strip groove (16 a; 16 b; 16 c), wherein the spring strip (18 a; 18 b; 18 c) has at least one locking groove (32 a, 34 a; 32b, 34 b; 32c, 34 c) which, in the mounted state of the spring strip (18 a; 18 b; 18 c), overlaps at least partially with the fastening groove (20 a, 22 a; 20b, 22 b; 20c, 22 c), characterized in that the wiper blade adapter (14 a; 14 b; 14 c) has at least one locking mechanism (48 a, 50 a; 48b, 50 b; 48c, 50 c) which is provided for at least partial insertion into the locking groove (32 a, 34 a; 32b, 34 b; 32c, 34 c) and the fastening groove (20 a, 22 a; 20b, 22 b; 20c, 22 c).

2. A wiper blade arrangement as claimed in claim 1, characterized in that the fixing recess (20 a, 22a, 24a, 26a, 28a, 30 a; 20b, 22b, 24b, 26b, 28b, 30 b; 20c, 22c, 24c, 26c, 28c, 30 c) has an extension along the spring bar groove (16 a; 16 b; 16 c) which is equal to at most 90% of the extension of the receiving region (12 a; 12 b; 12 c) along the spring bar groove (16 a; 16 b; 16 c).

3. A wiper blade device according to claim 1 or 2, characterized in that a wiper blade adapter (14 a; 14 b; 14 c) is provided, which has at least one fastening means (36 a, 38a, 40a, 42a, 44a, 46 a; 36b, 38b, 40b, 42b, 44b, 46 b; 36c, 38c, 40c, 42c, 44c, 46 c), which in the mounted state is arranged at least partially in the fastening recess (20 a, 22a, 24a, 26a, 28a, 30 a; 20b, 22b, 24b, 26b, 30 b; 20c, 22c, 24c, 26c, 28c, 30 c).

4. A wiper blade assembly according to claim 3, wherein the fastening means (36 a, 38a, 40a, 42a, 44a, 46 a; 36b, 38b, 40b, 42b, 44b, 46 b; 36c, 38c, 40c, 42c, 44c, 46 c) are arranged to at least partially embrace the spring strip (18 a; 18 b; 18 c).

5. A wiper blade device according to claim 1, wherein the locking mechanism (48 a, 50 a) is configured as a bolt-type member.

6. A wiper blade assembly according to claim 1, wherein the locking mechanism (48 b, 50 b; 48c, 50 c) is configured as a snap hook.

7. A wiper blade device according to claim 1 or 2, characterized in that the wiper blade adapter (14 a; 14 b; 14 c) is constructed in at least two components.

8. A holding unit (10 a; 10 b; 10 c) for a wiper blade device according to any one of claims 1 to 7.

9. A wiper blade adaptor (14 a; 14 b; 14 c) for a wiper blade device according to any one of claims 1 to 7.

10. A wiper blade having at least one wiper blade device according to any one of claims 1 to 7.

11. A method for mounting a wiper blade arrangement according to claim 1, wherein the wiper blade adapter (14 a; 14 b; 14 c) is arranged at least partially in the receiving region (12 a; 12 b; 12 c), the spring rails (18 a; 18 b; 18 c) are inserted into the spring rail grooves (16 a; 16 b; 16 c) in such a way that the locking recesses (32 a, 34 a; 32b, 34 b; 32c, 34 c) at least partially overlap the fastening recesses (20 a, 22 a; 20b, 22 b; 20c, 22 c), and the spring rails (18 a; 18 b; 18 c) are fastened by means of the locking means (48 a, 50 a; 48b, 50 b; 48c, 50 c), the fastening recesses (20 a, 22 a; 20b, 22 b; 20c, 22 c) and the locking recesses (32 a, 34 a; 32b, 34 b; 32c, 34 c).