Wiper device, in particular for motor vehicle, having pushable wiper lip

Abstract

The invention relates to a wiper device (1), in particular for a motor vehicle, comprising a holding device (2) and a wiper lip (6). According to the invention, the holding device (2) has at least one elongated holding body (8) which extends along a longitudinal extension (7) and which has a hollow profile (10) which is open at one end (9) and into which the wiper lip (6) can be pushed from the open end (9) along the longitudinal extension (7), according to the invention, a fastening gap (15) is provided on the hollow profile (10) along the longitudinal extension (7), and the bridge (17) of the wiper lip (6) extends through the fastening gap (15) in the inserted state.

Description

Field of the Invention

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

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

[0003] The advantage of the wiper device according to the invention having the features of the independent claims is that a better design and mode of operation can be achieved. In this case, the wiper device can be constructed more simply and / or the wiper blade can be replaced more simply.

[0004] Other advantageous developments and improvements of the features recited in the independent claims result from the measures recited in the dependent claims.

[0005] Advantageously, the wiper lip has a wiper lip edge which is guided on the windscreen for wiping during operation, and a fastening gap is formed on the side of the hollow profile facing the wiper lip edge of the wiper lip. Thereby, a favorable fastening is achieved, in which the forces occurring during wiping can be received in an optimized manner.

[0006] Advantageously, the wiper lip has a retaining strip connected to a bridge (Steg), and the retaining strip of the wiper lip is snap-fitted from the inside behind the side of the hollow profile at the fastening gap in the inserted state. Thereby, a form-fit can be achieved, which ensures reliable fastening during the service life.

[0007] Advantageously, an end member is provided which is at least indirectly releasably connectable to the retaining body, and the end member connected to the retaining body fixes the wiper lip in the hollow profile in the inserted state against displacement along the longitudinal extension. Even with a simple design of the wiper lip, reliable fastening can be achieved by means of the end member. Simple replacement can be achieved by the user.

[0008] Advantageously, the end member is at least indirectly connectable to the retaining body by means of a latching connection. Thereby, a simple and intuitively operable connection mechanism can be achieved.

[0009] Advantageously, the retaining device is configured as a wiper arm, the retaining body of the wiper arm is at least substantially formed by the hollow profile, and the end member can be releasably connected to the end of the hollow profile. In this way, the wiper lip can be assembled on the wiper arm in a simple manner, and the user can also replace the wiper lip in a simple manner.

[0010] Of course, another design of the wiper device is also possible. In particular, a design corresponding to a flat bow wiper can be achieved.

[0011] Advantageously, at least one retaining body has at least a substantially closed receiving element, the retaining device has at least one spring leaf which extends at least substantially over the longitudinal extension through the receiving element, and preferably a connecting element fixedly connected to the spring leaf is arranged at the end of the hollow element, and the end part can be releasably connected to this end. The design corresponding to the flat bow wiper can be achieved by means of one or more retaining bodies. In this case, a simple replacement of the wiper lip can be achieved.

[0012] Advantageously, the wiper lip has a retaining strip connected to the bridging part, at least one recess is provided in the retaining strip and the end part is inserted into the recess of the retaining strip of the wiper lip. Thereby, a form-fit can be achieved. In particular, a substantially releasable connection between the wiper lip and the end part can be achieved, so that the user can, for example, separate the end part from the wiper lip in the disassembled state of the wiper lip and then, if necessary, reuse the end part again. Additionally, it facilitates the removal or pulling out of the wiper lip.

[0013] In a variant design, additionally or alternatively, another connection manner between the end part and the wiper lip is also possible. For example, the wiper lip can also be connected to the end part chemically, in particular by bonding.

[0014] Advantageously, at least one recess of the retaining strip is provided on the longitudinal side of the wiper lip and a projection is formed on the end part, and the projection is inserted into the recess provided on the longitudinal side of the retaining strip. Thereby, a reliable form-fit can be achieved, where little space is required.

[0015] Advantageously, at least one recess of the retaining strip extends from the first longitudinal side of the wiper lip to the second longitudinal side of the wiper lip and a rib is formed on the side of the end part facing the wiper lip, and the rib is inserted into the recess extending from the first longitudinal side to the second longitudinal side. Thereby, a reliable form-fit can be achieved, where little space is required.

[0016] Advantageously, the wiper lip and the end part are not connected to each other. In this design, the assembled end part can only block the wiper lip. The wiper lip can be assembled with a clearance, so that a certain reciprocating movement can be achieved between the end stops, or it can be assembled without an obvious clearance.

[0017] Depending on the construction, one or more of the following features and advantages can be achieved.

[0018] In a possible design, a wiper arm with a wiper lip that can be simply replaced can be implemented. In this case, at least three components can be provided and, if necessary, exactly three components can also be provided. A wiper arm that implements the basic structure and can be connected to the shaft of an electric motor. A wiper lip that can be implemented in the form of a rubber part or a soft plastic part, etc. And an end component that can take over the function of the end cap and implements the fixing of the wiper lip on the wiper arm. The end cap can be loosened by operating a button.

[0019] In this way, the wiper arm can hold the wiper lip, where it is possible to simply remove and replace the wiper lip. The end component can be arranged as an external end component on the outer arc of the wiping movement.

[0020] When the wiper arm is driven, the wiper arm can predetermine the movement of the wiper lip on the windshield. The wiper arm can be formed by a hollow profile in the area of the wiper lip. The wiper lip can be fastened and held on the hollow profile over its entire longitudinal extension. In a variant design, the wiper lip can also be fastened or held only in one or more sections.

[0021] In an advantageous design, the end component is provided with a release mechanism that enables simple release of the end component from the wiper arm. For example, an operating button can be provided on the end component. In a variant design, such a release mechanism or operating button can also be provided on the wiper arm. When assembling the end component, the end component and the wiper arm can be pushed into each other in a releasable manner.

[0022] The wiper lip can be fixed to the end component in the assembled or pushed-in state. For this purpose, the end component can have a protrusion that fits into a notch on the wiper lip. Thereby, fixing of the wiper lip along the longitudinal extension can be achieved. In this case, the user can simply replace the wiper lip.

[0023] In a variant design, the wiper lip can also not be connected to the end component in the pushed-in state. In this case, when assembling the wiper lip, a gap along the longitudinal extension can be predetermined or not predetermined. In this case, during the wiping movement, the end component can support or fix the wiper lip in addition to supporting or fixing the wiper arm transversely to the longitudinal extension. In addition, the end component ensures that it will not be lost.

[0024] Another design can be carried out corresponding to a flat bow wiper, where a replaceable wiper lip is provided. In this case, a combination of an end component and a connecting piece can be provided instead of the end disk, which can simplify the replacement of the wiper lip. The connecting piece can be assembled in a position-fixed manner on the holding body and can ensure the connection to the end component. The end component can be fixedly connected to the wiper lip. A releasable connection can be achieved between the connecting piece and the end component.

[0025] An appliance capable of fastening, loosening and replacing the end part can be provided on the connecting piece. Thereby, the design of the end part can be simplified, and the end part can be replaced together with the wiper lip if necessary.

[0026] The spring strip can ensure the stability of the wiper device. The concept of the spring strip can be generally understood in this case and also includes designs in which the structural stability during wiping is basically ensured by the spring strip to guide, in particular pull, the wiper lip on the windshield according to the wiping movement. When assembling the wiper device 1, the spring strip does not necessarily have to be in a pre-tensioned state.

[0027] The connecting piece can be connected to the spring strip. The connecting piece can be provided on the inner arc or the outer arc of the wiping movement. The connecting piece can have an appliance for connecting to the end part and a loosening mechanism that can achieve the loosening of the connection to the end part. In this case, a latch connection can be provided.

[0028] If the end part is connected to the connecting piece, the wiper lip can be fixed by the end part. In this case, the end part can be connected to the wiper lip.

[0029] The end part can also not be connected to the wiper lip. Thus, if the end part is connected to the connecting piece, the end part can block the movement of the wiper lip along its extension.

[0030] The end part can have a protrusion that is embedded in a notch on the wiper lip. Thereby, the wiper lip can be replaced independently of the end part. However, the end part can also be fixedly connected to the wiper lip so that the end part is replaced together with the wiper lip.

[0031] The end part can have a receiving part for receiving the wiper lip and supporting the wiper lip in the area of the end part during the wiping movement.

[0032] The holding device can have a windshield. The holding device can have one or more holding bodies that can be formed by extrusion. In this case, the spring strip can be guided by the one or the more holding bodies according to the design to ensure the required stability. Thus, the holding body can not only hold the spring strip but also hold the wiper lip. This also applies to multiple holding bodies. Description of the Drawings

[0033] In the following description, the preferred embodiments of the present invention are described in more detail with reference to the drawings, in which the corresponding elements are provided with consistent reference numerals. Among them:

[0034] Figure 1 A wiper device according to a first embodiment is shown in a spatial schematic diagram, in particular for a motor vehicle, having a holding device and a wiper lip;

[0035] Figure 2 Shown in a spatial schematic diagramFigure 1 The wiper lip of the wiper device according to the first embodiment as shown;

[0036] Figure 3 Shown in a spatial schematic diagram Figure 1 The wiper device according to the first embodiment as shown, wherein the assembly or disassembly of the wiper lip is illustrated;

[0037] Figure 4 Shown in a spatial schematic sketch Figure 1 The retaining device and the wiper lip of the wiper device according to the first embodiment as shown, wherein the wiper lip is disassembled and a possible fastening manner of the wiper lip on the retaining device is illustrated;

[0038] Figure 5 Shown in a spatial schematic sketch Figure 1 The end part and the wiper lip of the wiper device according to the first embodiment as shown, wherein a possible connection manner between the end part and the wiper lip is illustrated;

[0039] Figure 6 Shown in a spatial sectional schematic diagram Figure 1 The wiper device as shown in Figure 5 The end part as shown in

[0040] Figure 7 The wiper device according to the second embodiment is shown in a spatial schematic diagram, wherein an oblique view of the wiper lip of the wiper device is shown;

[0041] Figure 8 Shown in a spatial schematic diagram from the viewing direction marked VIII for Figure 6 The end part of the wiper device according to the second embodiment as shown;

[0042] Figure 9 Shown in a spatial schematic diagram Figure 6 The wiper device according to the second embodiment as shown, wherein the assembly or pushing-in state of the wiper lip in the case of the fastened end part is shown;

[0043] Figure 10 The wiper device according to the third embodiment is shown in a spatial schematic sketch;

[0044] Figure 11 Shown in an exploded view Figure 10 The wiper device of the third embodiment as shown;

[0045] Figure 12 Shown in the assembled state Figure 10 The wiper device of the third embodiment as shown, wherein the retaining body is not shown;

[0046] Figure 13 shows the details at the end of the wiper device of the third embodiment shown in Figure 10 where the retaining body is not shown;

[0047] Figure 14 shows Figure 13 the details of the wiper device of the third embodiment shown in where the connecting piece is assembled and the retaining body is not shown;

[0048] Figure 15 shows Figure 14 the details of the wiper device of the third embodiment shown in where the assembly of the end part is shown and the retaining body is not shown;

[0049] Figure 16 shows Figure 15 the details of the wiper device of the third embodiment shown in where the end part in the assembled state is shown and the retaining body is shown;

[0050] Figure 17 shows in a spatial schematic diagram Figure 15 and Figure 16 the end part of the wiper device of the third embodiment shown in;

[0051] Figure 18 shows the wiper device of the third embodiment when assembling the wiper lip where the end part is not assembled;

[0052] Figure 19 shows in a spatial schematic sketch from the viewing direction marked XIX Figure 18 the details of the wiper device according to the third embodiment shown in where one end at the end part is shown;

[0053] Figure 20 shows in a spatial schematic sketch from the viewing direction marked XIX Figure 18 the details of the wiper device according to the third embodiment shown in where the other end is shown;

[0054] Figure 21 shows in a spatial schematic diagram the end part for the wiper device according to the fourth embodiment;

[0055] Figure 22 shows in a spatial schematic diagram the wiper lip for the wiper device according to the fourth embodiment, where the wiper lip can be connected to Figure 21 the end part shown in, and

[0056] Figure 23 shows in a schematic sketch the retaining body for the wiper device according to the third or fourth embodiment. Detailed description of the specific implementation

[0057] Figures 1 to 6 The wiper device 1 according to the first embodiment is shown in a plurality of views. The wiper device 1 can be used in particular for a motor vehicle. Figure 1 In this case, the wiper device 1 is shown in the assembled state.

[0058] The wiper device 1 has a holding device 2 which is configured as a wiper arm 3 in this embodiment. The wiper arm 3 includes a fastening body 4 with a fastening eye 5 on which fastening to the drive shaft of an electric motor can be effected.

[0059] Figure 2 The wiper lip 6 of the wiper device 1 is shown in a spatial schematic view according to a possible design. The wiper lip 6 can be advantageously assembled and disassembled and thus can be simply replaced, as is also explained in Figure 3 .

[0060] The holding device 2 includes an elongate holding body 8 extending along a longitudinal extension 7 which adjoins the fastening body 4. The holding body 8 has a hollow profile 10 which is open at one end 9. The wiper lip 6 can be pushed into the hollow profile 10 along the longitudinal extension 7 starting from the open end 9, as shown in Figure 3 . Accordingly, the wiper lip 6 can be pulled out of the hollow profile 10. This is illustrated by the double arrow 11.

[0061] The pushing in and pulling out can be effected by means of a fastening gap 15 provided in the hollow profile 10. The fastening gap 15 extends through the hollow profile 10 along the longitudinal extension 7. The wiper lip has a retaining strip 16 and a bridging portion 17 connected to the retaining strip 16. The bridging portion 17 of the wiper lip 6 extends through the fastening gap 15 in the pushed-in state.

[0062] Figure 4 The holding device 2 and the wiper lip 6 are shown, where the wiper lip is disassembled. The wiper lip 6 has a wiper lip edge 20. In operation, the wiper lip 6 is guided on its wiper lip edge on the windscreen of the motor vehicle for wiping. The windscreen is not part of the wiper device 1 in this case. The fastening gap 15 is configured on the side 21 of the hollow profile 10 facing the wiper lip edge 20 of the wiper lip 6.

[0063] In this way, the retaining strip 16 of the wiper lip 6 is fitted into the inside behind the side 21 of the hollow profile 10 at the fastening gap 15 in the Figure 1 shown pushed-in state.

[0064] The wiper device 1 also has an end part 24 which is releasably connected to the retaining body 8 or to the open end 9 of the hollow profile 10. The assembled end part 24 fixes the wiper lip 6 such that the wiper lip remains in the hollow profile 10 in the pushed-in state. The wiper lip 6 can be removed by the user releasing and pulling off the end part 24. In this way, the user can remove the wiper lip 6 by pulling on the end part 24.

[0065] The end part 24 is connected to the retaining body 8 by a latching connection. However, other connection means can also be envisaged in a variant design.

[0066] Figure 5 A possible connection between the end part and the wiper lip is illustrated. A recess 35 is provided in the retaining strip 16 of the wiper lip 6. In the assembled state of the end part 24, i.e. when the end part 24 and the wiper lip 6 are connected to each other, the end part 24 is inserted into the recess 35 of the retaining strip 16 of the wiper lip 6.

[0067] In this case, when assembling the end part 24, the operating button 38 of the end part 24 can be locked into a recess 39 ( Figure 4 ) at the open end 9 of the hollow profile 10. In addition, on at least one of the longitudinal sides 36, 37 of the wiper lip 6, at least one projection 33 can be inserted into a groove 34 extending along the longitudinal sides 36, 37 of the wiper lip 6.

[0068] In this embodiment, the recess 35 of the retaining strip 16 extends from the first longitudinal side 36 of the wiper lip 20 to the second longitudinal side 37 of the wiper lip 6. The recess 35 is configured in a groove shape. In addition, the end part 24 has ribs 43 on the side 42 facing the wiper lip 6, which ribs are inserted into the recess 35 in the assembled state, as shown according to Figure 5 and Figure 6 description.

[0069] Figures 7 to 9 The wiper device 1 according to the second embodiment is shown. In this case Figure 7 a perspective view of the wiper lip 6 is shown, looking from diagonally below, i.e. starting from the windscreen. Figure 8 From Figure 6 the viewing direction marked VIII in shows the end part 24. Figure 9 The assembled or pushed-in state of the wiper lip 6 in the case of the fastened end part 24 is shown.

[0070] In this embodiment, the wiper lip 6 and the end member 24 are not connected to each other. The wiper lip 6 can be pushed into the fastening gap 15 independently of the end member 24, as indicated by arrow 45. Then, the end member 24 can be assembled, as indicated by arrow 46. In the assembled state, a certain gap 47 can be retained so that the wiper blade 6 can move back and forth in the fastening gap 15, as illustrated by the double arrow 48. However, in a variant design, at least an imperceptible gap can also be retained.

[0071] Figures 10 to 20 The wiper device 1 according to the third embodiment is shown. In this case Figure 10 The wiper device 1 in the assembled state is shown. The two retaining bodies 8 can be connected to each other by means of an adapter 50. The wiper arm can be engaged on the adapter 50.

[0072] Figure 11 The wiper device 1 is shown in an exploded view. The retaining body 8 has a receiving element 30. In addition, the retaining device 2 has a spring leaf 31 which extends through the receiving element 30 on the longitudinal extension 7. The wiper device 1 has a connecting member 32.

[0073] The connecting member 32 is fixedly connected to the spring leaf 31, as Figure 12 shown. As Figure 13 and Figure 14 shown, the connecting member 32 can be fixedly connected to the spring leaf 31. In this case, the connecting member 32 can be locked into a preferably lateral recess 44 of the spring leaf 31.

[0074] As Figure 15 and Figure 16 shown, the end member 24 can be releasably connected to the connecting member 32, for example by means of a latching connection. In this way, the end member 24 can be releasably arranged on the end 9 of the hollow element 10. The operating button 38 can be arranged on the connecting member 32, while the recess 39 into which the operating button 38 is locked is arranged on the end member 24.

[0075] Figure 17 The end member 24 is shown, in which the hollow element 10 extending into the end member 24 for receiving the wiper lip 6 is shown. Figure 18 The assembly of the wiper lip 6 is shown, in which the end member 24 has not yet been assembled. Then, the end 51 of the wiper lip 6 can be inserted into the hollow element 10 at the end member 24, as Figure 19 shown. In this case Figure 19 is shown from the viewing direction marked XIX Figure 10 the wiper device 1 in the assembled state as shown in

[0076] Correspondingly, Figure 20The detail of the wiper device 1 in the assembled state is shown from the viewing direction marked XIX at the other end 52. In this case, the end disk 53 can be provided at the other end 52, and the hollow profile 10 extends into this other end.

[0077] Figure 21 and Figure 22 The fourth embodiment of the wiper device 1 is shown. In this case Figure 21 the end part 24 is shown. Figure 22 The wiper lip 6 is shown. The wiper lip 6 can be connected to the end part 24.

[0078] For this purpose, a recess 35 of the retaining strip 16 is provided on the longitudinal side 36 of the wiper lip 20. Correspondingly, a projection 40 is constructed on the end part 24, which in the assembled state is inserted into the recess 35 provided on the longitudinal side 36 of the retaining strip 16.

[0079] Figure 23 A possible design of the retaining body 8 of the wiper device 1 for the third or fourth embodiment is shown in a schematic sketch. The spring strip 31 extends through the receiving profile 30 of the retaining strip 8.

[0080] The invention is not limited to the described embodiments.

Claims

1. A wiper device (1), in particular for a motor vehicle, comprising a retaining device (2) and a wiper lip (6), It is characterized in that The holding device (2) comprises at least one elongated holding body (8) extending along a longitudinal extension (7), the holding body having a hollow profile (10) which is open at one end (9), the wiper lip (6) being insertable starting from the open end (9) along the longitudinal extension (7), a fastening slit (15) being provided on the hollow profile (10) extending along the longitudinal extension (7), and a bridge (17) of the wiper lip (6) extending through the fastening slit (15) in the inserted state.

2. The wiper device according to claim 1, It is characterized in that The wiper lip (6) has a wiper lip edge (20) which is guided on a windshield during operation for wiping, and the fastening slot (15) is formed on that side (21) of the hollow profile (10) which faces the wiper lip edge (20) of the wiper lip (6).

3. The wiper device according to claim 1 or 2, It is characterized in that The wiper lip (6) has a retaining strip (16) which is connected to the bridge (17), and the retaining strip (16) of the wiper lip (6) engages from the inside behind the side (21) of the hollow profile (10) at the fastening slot (15) in the inserted state.

4. The windshield wiper device according to any one of claims 1 to 3, It is characterized in that An end piece (24) is provided which can be at least indirectly connected to the holding body (8) in a releasable manner, and the end piece (24) connected to the holding body (8) fixes the wiper lip (6) in the inserted state in the hollow profile (10) to prevent it from moving out along the longitudinal extension (7).

5. The wiper device according to claim 4, It is characterized in that The end piece (24) can be connected at least indirectly to the holding body (8) by means of a latching connection.

6. The windshield wiper device according to claim 4 or 5, It is characterized in that The holding device (2) is designed as a wiper arm (2), the holding body (8) of the wiper arm (3) being at least substantially formed by the hollow profile (10) and the end piece (24) being releasably connectable to the end (9) of the hollow profile (10).

7. The windshield wiper device according to claim 4 or 5, It is characterized in that At least one retaining body (8) has an at least substantially closed receiving profile (30), the retaining device (2) has at least one spring leaf (31) which extends through the receiving profile (30) at least substantially in the longitudinal extension (7), and a connecting piece (32) which is preferably fixedly connected to the spring leaf (31) is arranged on the end (9) of the hollow profile (10), and the end piece (24) can be releasably connected to the end.

8. The windshield wiper device according to any one of claims 4 to 7, It is characterized in that The wiper lip (6) has a retaining strip (16) connected to the bridge (17), at least one recess (35) being provided on the retaining strip (16) and the end piece (24) engaging in the recess (35) of the retaining strip (16) of the wiper lip (6).

9. The windshield wiper device according to claim 8, It is characterized in that a) at least one recess (35) of the retaining strip (16) is arranged on a longitudinal side (36) of the wiper lip (20) and a projection (40) is formed on the end piece (24), which projection engages in the recess (35) of the retaining strip (16) arranged on the longitudinal side (36), and / or b) at least one recess (35) of the retaining strip (16) extends from a first longitudinal side (36) of the wiper lip (20) to a second longitudinal side (37) of the wiper lip (6), and a rib (43) is formed on the side (42) of the end part (24) facing the wiper lip (6), which rib engages in the recess (35) extending from the first longitudinal side (36) to the second longitudinal side (37).

10. The windshield wiper device according to any one of claims 4 to 7, It is characterized in that The wiper lip (6) and the end piece (24) are not connected to one another.

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