Wiper device, in particular for motor vehicle, having insertable wiper blade

Abstract

The invention relates to a wiper device (1), in particular for a motor vehicle, comprising a wiper arm (2) and a wiper blade (3), the wiper blade (3) having a fastening part (4) on which the wiper blade (3) can be fastened to the wiper arm (2) and a wiper lip (5). According to the invention, the wiper arm (2) has a slightly elongated receiving body (7) which extends along a longitudinal extent (6), and the fastening part (4) is at least substantially designed as a hollow profile (8) which, during installation, can be inserted onto the receiving body (7) of the wiper arm (2) along the longitudinal extent (6), and the hollow profile (8) of the wiper blade (3) at least partially encloses the slightly elongated receiving body (7) in the mounted state.

Description

Field of the Invention

[0001] The present invention relates to a wiper device, particularly for a motor vehicle. In particular, the present invention relates to the fields of passenger cars (PKW) and commercial vehicles (LKW). Background Art

[0002] A wiper blade for cleaning a motor vehicle window pane is known from DE 19854307 A1. The known wiper blade includes a wiper strip held by a clamping system. Summary of the Invention

[0003] The wiper device according to the invention, having the features of the independent claims, has the advantage that an improved design and principle of operation can be achieved. Herein, a simpler construction of the wiper device and / or an easier replacement of the wiper blade can be achieved.

[0004] Furthermore, by the measures recited in the dependent claims, advantageous developments and improvements of the features described in the independent claims are produced.

[0005] Advantageously, at least one connecting element is provided, which fixes the wiper blade in the mounted state to prevent it from being pulled out of the wiper arm along the longitudinal extent. Thereby, the wiper blade can be easily replaced by the user. Furthermore, the wiper blade can be advantageously fixed to the wiper arm.

[0006] Advantageously, the connecting element is configured as a manually operable locking element. Thereby, the wiper blade can be easily replaced without tools. An intuitive operation of the locking element can be achieved.

[0007] Advantageously, the locking element is provided on the wiper arm and engages into a recess formed in the hollow profile in order to fix the wiper blade to the wiper arm. Herein, the locking element can be clearly visible from the outside, so that the locking element can be simply and intuitively operated to effect the replacement of the wiper blade. The locking element can be configured as a spring element. In particular, the locking element can be configured as a plastic spring element.

[0008] Advantageously, an end piece is provided, which is connected to the hollow profile of the wiper blade. Thereby, the wiper blade can be fixed to the wiper arm by the end piece. Thereby, a wiper blade made of at least one rather flexible material can be achieved if necessary. A wiper blade formed on a hollow profile having a closed peripheral surface can be achieved if necessary. Furthermore, a greater design freedom can be achieved especially with respect to the geometric design of the hollow profile.

[0009] Advantageously, an end piece is provided which is mechanically and / or non-detachably and / or by clamping and / or by chemical bonding connected to the hollow profile of the wiper blade. Thereby, the replacement of the wiper blade can be made easier. In particular, the user can, if necessary, pull the wiper blade out of the wiper arm via the end piece.

[0010] Advantageously, a locking element is constructed on the end piece which can be inserted into the hollow end of the wiper arm, and the locking element engages into a recess constructed on the hollow end of the wiper arm for fixing the wiper blade. Thereby, reliable fixation of the wiper blade can be achieved.

[0011] Advantageously, the hollow profile of the wiper blade completely surrounds the slightly elongated receiving body in the installed state. Thereby, improved fixation of the wiper blade on the wiper arm can be achieved. The ingress of dirt between the wiper blade and the wiper arm can be avoided.

[0012] Advantageously, the hollow profile is rigidly constructed and the wiper lip is elastically constructed. This can ensure reliable fixation in a possible design, in which recesses for locking connections etc. are constructed in the hollow profile. If necessary, advantageous fixation of the wiper blade on the wiper arm can be achieved, wherein easy replacement of the wiper blade can be carried out.

[0013] Advantageously, the wiper blade is constructed as a co-extruded component. Thereby, specific desired material properties can be combined in a targeted manner. In particular, the material of the wiper lip and the material of the hollow profile can be selected according to the requirements put forward. In particular, non-flexible and flexible materials can be combined.

[0014] Advantageously, the hollow profile and the wiper lip are elastically constructed and the wiper blade is preferably constructed as a single-extruded component. Thereby, advantageous manufacturing can be carried out.

[0015] According to the design, one or more of the following features and advantages can be achieved.

[0016] The wiper blade can be constructed as at least partially hose-shaped. The wiper blade can be realized as an easily replaceable wiper blade which can be applied, installed or inserted onto the wiper arm by the user in a simple manner and removed again, in particular pulled out or pushed away, after the end of its service life.

[0017] The wiper device can, if necessary, also have additional components in addition to the wiper arm and the wiper blade. The wiper arm can be connected at least indirectly to an electric motor or a rotating shaft. The wiper blade can advantageously fulfill the function of a lip-shaped rubber sealing strip etc.

[0018] In a possible design, the wiper arm can have means for holding, releasing and replacing the wiper blade.

[0019] In an advantageous design, the hollow profile of the wiper blade can be pulled onto the outer side of the wiper arm. The wiper arm can then support the wiper blade mounted or otherwise applied to the wiper arm on the hollow profile, preferably within the preferred total length of the hollow profile, by means of the profile or the profile body of the wiper arm. Here, the profile of the wiper arm can be at least approximately as long as the hollow profile of the wiper blade along its extension in the longitudinal direction. The hollow profile, in particular a hose-shaped hollow profile, can preferably be extruded.

[0020] In an advantageous design, the wiper device can have a release function for the wiper blade. For example, the release function can be activated by pressing a button. The wiper blade can be removably fixed to the profile of the wiper arm here. Preferably, the wiper blade can be easily removed from the wiper arm, which can be achieved, for example, by means of a sufficient clearance between the wiper blade and the wiper arm. The wiper blade can then be held on the wiper arm by an anti-loosening mechanism, which can be released by the release function. One or more voids, in particular notches, can be provided on the hollow profile of the wiper blade. The wiper arm can be equipped with one or more connecting elements, in particular locking elements. Here, in one design, a plurality of connecting elements can be inserted into the corresponding number of voids.

[0021] In an advantageous design, the wiper device can have an end piece. The end piece can also perform the function of an end cap here. For example, the end piece can be mechanically connected to the wiper blade. The end piece can also be connected to the wiper blade by clamping. In addition, the end piece can be connected to the wiper blade in a material-locking and / or chemical manner. Thus, the end piece can also be fixedly, and thus non-removably, connected to the wiper blade here. The end piece can close the end of the wiper blade and, if necessary, the end of the wiper arm, such that it can be used as an end cap at the same time.

[0022] In an advantageous design, the wiper blade can be removed by means of the end piece. Here, the hollow profile of the wiper blade can be connected to the end piece, which can be done, for example, mechanically, by clamping or by chemical connection. If the user pulls on the end piece, for example, the wiper blade can then be removed, in particular pulled out. The end piece can have a connecting element, in particular a locking element, by means of which a releasable connection can be established with the wiper blade. The connecting element provided on the end piece can be actuated according to a button in order to release the connection. Description of the Drawings

[0023] Preferred embodiments of the present invention are explained in detail in the following description with reference to the drawings, in which the corresponding elements are provided with identical reference numerals. Among them:

[0024] Figure 1A wiper device having a wiper arm and a wiper blade, especially for a motor vehicle, is shown in a schematic spatial illustration in order to explain a first embodiment;

[0025] Figure 2 The wiper arm of the wiper device shown in Figure 1 is shown in a schematic spatial illustration according to the first embodiment;

[0026] Figure 3 The wiper blade of the wiper device shown in Figure 1 is shown in a schematic spatial illustration according to the first embodiment;

[0027] Figure 4 The situation of the wiper device shown in Figure 1 during the replacement of the wiper blade is shown in a schematic spatial illustration in order to further explain the structure and principle of operation, wherein the situation when the wiper blade is applied or removed is shown, in which case the wiper blade is only partially applied to the wiper arm;

[0028] Figure 5 A cross-section of the wiper arm and the wiper blade, observed perpendicular to the longitudinal extent of the wiper arm and designated by V in Figure 4 is shown in a schematic sectional illustration;

[0029] Figure 6 A wiper device having a wiper arm and a wiper blade is shown in a schematic spatial illustration in order to explain a second embodiment;

[0030] Figure 7 Details of the wiper device shown in Figure 6 are shown in a schematic spatial illustration according to the second embodiment; wherein the situation when the wiper blade is applied or mounted on the wiper arm is shown;

[0031] Figure 8 Details of the wiper device shown in Figure 7 are shown according to the second embodiment, wherein the mounted state is shown;

[0032] Figure 9 A wiper device having a wiper arm and a wiper blade is shown in a schematic spatial illustration in order to explain a third embodiment, wherein an additional end piece is provided which can be connected to the wiper blade;

[0033] Figure 10 A wiper device having a wiper arm and a wiper blade is shown in a schematic spatial illustration in order to explain a fourth embodiment, wherein an additional end piece is provided which can be releasably connected to the wiper arm by means of a snap connection in order to fix the wiper blade on the wiper arm;

[0034] Figure 11 A schematic spatial illustration shows details of the wiper device shown in Figure 10 during the installation of the wiper blade on the wiper arm; and

[0035] Figure 12 shows details shown in Figure 11 during the installation state. Detailed Description of the Invention

[0036] Figure 1 A wiper device 1 having a wiper arm 2 and a wiper blade 3 is shown in a schematic spatial illustration to explain the first embodiment. The wiper device 1 is particularly used for a motor vehicle. Such a motor vehicle can be configured as a passenger car or a truck.

[0037] Figure 2 The wiper arm 2 of the wiper device 1 shown in Figure 1 is shown in a schematic spatial illustration according to the first embodiment. In addition, Figure 3 The wiper blade 3 of the wiper device 1 shown in Figure 1 is shown in a schematic spatial illustration according to the first embodiment.

[0038] The wiper blade 3 has a fixing member 4 and a wiper lip 5. When the wiper blade 3 is applied or installed on the wiper arm 2 as shown in Figure 1 the wiper blade is fixed to the wiper arm 2 at the fixing member 4.

[0039] The wiper arm 2 includes a slightly elongated receiving body 7 extending along a longitudinal extension 6. The fixing member 4 is configured as a hollow profile 8 which can, in a possible design, match the shape of the slightly elongated receiving body 7 in terms of its shape. This can particularly be the case if the hollow profile 8 is configured to be relatively rigid. However, in a relatively flexible design of the hollow profile 8, a geometric match with the shape of the slightly elongated receiving body 7 can be advantageous.

[0040] The hollow profile 8 can protrude slightly beyond the end 9 of the wiper arm 2 of the wiper device 1 along the longitudinal extension 6 in the installed state.

[0041] Figure 4 A schematic spatial illustration according to the first embodiment shows the situation of the wiper device 1 shown in Figure 1 during the replacement of the wiper blade 3 for further explanation of the structure and the principle of operation. The situation during the application or removal of the wiper blade 3 is shown here, in which the wiper blade 3 is only partially applied to the wiper arm 2.

[0042] The hollow profile 8 is inserted onto the receiving body 7 of the wiper arm 2 along the longitudinal extent 6 during installation. The concept of insertion should be understood broadly here and includes processes in which, for example, the user pulls and / or pushes the wiper blade 3 in a suitable manner. The concept of pulling out should also be understood correspondingly broadly.

[0043] Figure 5 A schematic cross-sectional view shows the cross-section of the wiper arm 2 and the wiper blade 3, Figure 4 viewed perpendicular to the longitudinal extent 6 of the wiper arm 2, which is denoted by V in. The hollow profile 8 of the wiper blade 3 is configured in the present embodiment such that it completely surrounds the slightly elongated receiving body 7 in the installed state. In a modified design, the hollow profile can also have one or more slots or other gaps along the longitudinal extent, where such slots or gaps do not necessarily extend over the entire longitudinal extent. The hollow profile 8 then only partially surrounds the receiving body 7 at such slots or gaps in the installed state.

[0044] Figure 6 A schematic spatial view shows the wiper device 1 having the wiper arm 2 and the wiper blade 3 in order to explain the second embodiment. In the present embodiment, a connecting element 15 is provided, which fixes the wiper blade 3 in the installed state to prevent it from being pulled out of the wiper arm 2 along the longitudinal extent 6.

[0045] Here, in the present embodiment, the connecting element 15 is configured as a manually operable locking element 16, which is provided on the wiper arm 2.

[0046] Figure 7 A schematic spatial view shows the details of the wiper device 1 shown in Figure 6 according to the second embodiment; where the situation during the application or installation of the wiper blade 3 onto the wiper arm 2 is shown. In addition, Figure 8 The details of the wiper device 1 shown in Figure 7 are shown according to the second embodiment, where the installed state is shown.

[0047] The connecting element 15 is inserted into the gap 17 formed in the hollow profile 8 in order to fix the wiper blade 3 to the wiper arm 2. In the present embodiment, when the wiper blade 3 is pushed from the position shown in Figure 7 along the installation direction 24 to the position shown in Figure 8When in the installation position shown, the connecting element 15 formed as the latching element 16 is inserted into the gap 17. The latching element 16 has an operating element 18 formed as an operating button 18, which is connected to the rest of the wiper arm 2 by a spring tongue 19. By pressing the operating button 18, the wiper blade 3 can be released again so that it can be pulled out in the direction opposite to the installation direction 24.

[0048] In this embodiment, the wiper arm 2 has a profile body 20 and a fixing body 21 with fixing holes 22. The spring tongue 19 and the operating button 18 are separated from the rest of the profile body 20 by a slot in the profile body 20 here, thereby forming a spring element 23, in particular a plastic spring element 23. The fixing holes 22 are used, for example, for connection to the output shaft of an electric motor.

[0049] Figure 9 A wiper device 1 with a wiper arm 2 and a wiper blade 3 is shown in a schematic spatial illustration in order to explain a third embodiment. In this embodiment, the wiper device 1 has an additional end piece 25. The additional end piece 25 is preferably connected to the wiper blade 3.

[0050] If the additional end piece 25 is connected to the wiper blade 3, the pulling out of the wiper blade 3 from the wiper arm 2 can be made easier. Preferably, the end piece 25 is connected to the hollow profile 8 of the wiper blade 3. The end piece 25 is, for example, mechanically releasably connected to the hollow profile 8 of the wiper blade 3 by clamping or by a chemical connection.

[0051] In this embodiment, the latching element 16 is arranged on the wiper arm 2. The end piece 25 then serves to close the end 9.

[0052] Figure 10 A wiper device 1 with a wiper arm 2 and a wiper blade 3 is shown in a schematic spatial illustration in order to explain a fourth embodiment, in which an additional end piece 25 is provided. In this embodiment, the end piece 25 serves to fix the wiper blade 3 on the wiper arm 2. The end piece 25 can close the wiper arm 2. The operating button 18 and the spring tongue 19 are constructed on the end piece 25 here.

[0053] Figure 11 A schematic spatial illustration shows the details of the wiper device 1 corresponding to the fourth embodiment, as shown in Figure 10 in which the situation when the wiper blade 3 is installed on the wiper arm 1 is shown. In addition, Figure 12 shows the details shown in Figure 11 in which the installed state is shown. The hollow profile 8 of the wiper blade 3 is shown by a dashed line. The latching element 16 is constructed on the end piece 25.

[0054] When installing the wiper blade 3, in order to fix the wiper blade 3, the end piece 25 is releasably connected to the wiper arm 2 by a snap connection. Figure 11 The situation of pushing the end piece 25 along the installation direction 24 is shown. By pressing the operating button 18, the snap connection is released, so that the end piece 25 can be withdrawn from the installation position shown in Figure 11 ) in the opposite direction to the installation direction 24 ( Figure 12 .

[0055] In this design, the locking element 16 is constructed on the end piece 25. The locking element 16 on the wiper arm 2 can then be disengaged. When installing the end piece 25, preferably the end piece is inserted into the hollow end 27 of the wiper arm 2.

[0056] When the wiper blade 3 is installed on the wiper arm 2, in order to fix the wiper blade 3, the locking element 16 engages in a gap 28 constructed on the hollow end 27 of the wiper arm 2 in an advantageous manner.

[0057] In the described embodiment, the hollow profile 8 can be rigidly formed, while the wiper lip 5 is elastically formed. Here, the wiper blade 3 can be constructed as a co-extruded member 35.

[0058] In a modified design, the hollow profile 8 and the wiper lip 5 can be elastically formed. The wiper blade 3 can then be constructed as a single-extruded member 36. This is particularly advantageous in the following embodiments, in which no gap 17 for snap connection is provided in the wiper blade 3.

[0059] The invention is not limited to the described embodiments.

Claims

1. A wiper device (1), in particular for a motor vehicle, comprising a wiper arm (2) and a wiper blade (3), wherein the wiper blade (3) comprises a fastening element (4) and a wiper lip (5), wherein the wiper blade (3) can be fastened to the wiper arm (2) at the fastening element, It is characterized in that The wiper arm (2) has a slightly elongated receiving body (7) extending along a longitudinal extension (6), the fixing element (4) is at least substantially configured as a hollow profile (8) which can be inserted into the receiving body (7) of the wiper arm (2) along the longitudinal extension (6) during installation, and the hollow profile (8) of the wiper blade (3) at least partially surrounds the slightly elongated receiving body (7) in the installed state.

2. The wiper device according to claim 1, It is characterized in that At least one connecting element (15) is provided, which fixes the wiper blade (3) in the installed state in order to prevent it from being pulled out of the wiper arm (2) along the longitudinal extension (6).

3. The wiper device according to claim 2, It is characterized in that The connecting element (15) is designed as a manually actuatable latching element (16).

4. The wiper device according to claim 3, It is characterized in that The latching element (16) is arranged on the wiper arm (2) and engages in a recess (17) formed in the hollow profile (8) in order to fix the wiper blade (3) on the wiper arm (2).

5. The wiper device according to claim 3, It is characterized in that The latching element (16) is formed on an end piece (25) which can be inserted into a hollow end (27) of the wiper arm (2), and the latching element (16) engages in a recess (28) formed on the hollow end (27) of the wiper arm (2) for fixing the wiper blade (3).

6. The windshield wiper device according to any one of claims 1 to 5, It is characterized in that An end piece (25) is provided which is connected to the hollow profile (8) of the wiper blade (3) and / or an end piece (25) is provided which is connected to the hollow profile (8) of the wiper blade (3) mechanically and / or non-detachably and / or by clamping and / or by chemical bonding.

7. The windshield wiper device according to any one of claims 1 to 6, It is characterized in that The hollow profile (8) of the wiper blade (3) fully surrounds the slightly elongated receiving body (7) in the installed state.

8. The windshield wiper device according to any one of claims 1 to 7, It is characterized in that The hollow profile (8) is rigid and the wiper lip (5) is elastic.

9. The windshield wiper device according to any one of claims 1 to 8, It is characterized in that The wiper blade (3) is designed as a coextruded component (35).

10. The windshield wiper device according to any one of claims 1 to 7, It is characterized in that The hollow profile (8) and the wiper lip (5) are elastically designed and The wiper blade (3) is preferably designed as a single extruded component (36).

Images