Wiper device, in particular for motor vehicle, having wiper lip that can be pushed into and fastened in wiper arm

Abstract

The invention relates to a wiper device (1), in particular for a motor vehicle, comprising a wiper arm (2) and a wiper lip (3). According to the invention, a receiving contour (11) which is open at an end (10) of the wiper arm (2) is formed on the wiper arm (2), into which receiving contour the wiper lip (3) can be pushed along a longitudinal extension (12), and at least one fastening means (13) for fastening the wiper lip (3) in the open receiving contour (11) is provided on the wiper arm (2), at least one actuating button of the fastening means (13) is formed on the wiper arm (2).

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 lorries (LKW). Background Art

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

[0003] The wiper device according to the invention, having the features of the independent claims, has the following advantages: an improved design and principle of operation can be achieved. Here, a simpler construction of the wiper device and / or an easier replacement of the wiper lip can be achieved.

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

[0005] Advantageously, the wiper lip has a recess and the fixing mechanism has a fixing element connected to an operating button, which fixing element is embedded in the recess of the wiper lip in the assembled state. The operating button can be pressed and then engaged, so that, for example, the fixing element configured as a projection on the operating button is embedded in the recess of the wiper lip and the wiper lip is fixed. Then the wiper lip is latched to prevent movement along the longitudinal extension of the wiper arm.

[0006] Advantageously, the receiving profile has a fixing slit, the wiper lip has a tab and a retaining strip connected to the tab, and the tab of the wiper lip extends through the fixing slit in the pushed-in state, wherein the retaining strip is inserted into the receiving profile of the wiper arm. Thereby, a reliable connection can be ensured, which keeps the wiper lip positioned during operation when the wiper lip is pulled on the glass.

[0007] Advantageously, the wiper arm is at least substantially closed at the end except for the receiving profile, and the open cross-section of the receiving profile is at least substantially configured according to the retaining strip of the wiper lip and the tab of the wiper lip. Thereby, the ingress of liquid or solids is prevented. This can also ensure a reliable operating mode.

[0008] Advantageously, the operating button is arranged at least approximately at the end of the wiper arm. Thereby, the wiper lip can be fastened particularly at the outer end in the maximum wiping arc. Thereby, the insertion of the wiper lip can be facilitated if necessary. Furthermore, the operation can be made easier for the user with respect to the mounting position of the wiper arm on the motor vehicle, wherein, for example, the fixing holes are arranged close to the vehicle center.

[0009] Advantageously, the operating button is arranged at least approximately at the inner end of the wiper arm. Thereby, the operation can be made easier for the user relative to the mounting position of the wiper arm on the motor vehicle, where, for example, the fixing holes are arranged close to the vehicle side.

[0010] Advantageously, the operating button is arranged at the outer end of the wiper arm. Thereby, the wiper lip can be easily removed without, for example, being hindered in the connection to the output shaft of the electric motor. It is also advantageous here that the fixing holes of the wiper arm are formed at the inner end of the wiper arm. Thereby, a favorable drive for the wiper arm can be achieved.

[0011] Advantageously, the wiper arm is formed at least substantially in one piece. Thereby, a robust and simple design can be achieved.

[0012] Advantageously, the wiper arm is formed in multiple parts and the operating button is arranged on a sub-component of the wiper arm. Thereby, in a possible design, the sub-component can be replaced if necessary for repair.

[0013] Advantageously, the wiper arm has a fixing body on which the fixing holes are formed. Thereby, a connection to the output shaft of the electric motor, a connection to a shaft that can be actuated by a guide rod, etc. can be made.

[0014] Advantageously, a spoiler is formed on the wiper arm, which extends at least substantially within the longitudinal extension. Thereby, additional functionality can be achieved. The section of the wiper arm (in which the operating button is located) when viewed along the longitudinal extension can thus be pulled into the spoiler.

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

[0016] The wiper arm can be provided with a replaceable wiper lip, so that after the wiper lip is worn, it can be easily refilled by the user. Here, in a possible design, exactly two components can be provided: the wiper arm, which ensures structural stability and which can be connected to the rotatable output shaft of the electric motor; and the wiper lip, which can be formed of rubber material or a similar material and which can achieve the wiping of glass, in particular the windshield of a motor vehicle.

[0017] The wiper arm can have means for holding, releasing and replacing the wiper lip.

[0018] The wiper lip can be inserted into the wiper arm along the longitudinal extension of the wiper arm. The wiper lip can be directly fixed to the wiper arm. Thereby, an indirect connection, for example via another component, between the wiper arm and the wiper lip is not required. The wiper lip can be releasably fixed to the wiper arm.

[0019] The wiper arm can have a receiving profile that holds the wiper lip and supports it against, for example, the frictional force between the glass and the wiper lip when moving onto the glass. The holding and supporting of the wiper lip can be carried out at least substantially over the entire longitudinal extent of the wiper lip. However, in a modified design, the wiper lip can also be held or supported only in at least one section, in particular in a plurality of sections.

[0020] The wiper arm can be provided with a release mechanism The release of the wiper lip can be carried out by actuating a button. The wiper lip can have at least one recess, in particular a notch and / or at least one projection for this purpose. The actuating button can allow the fixing element to be inserted into the recess or onto the projection, and the fixing element fixes the wiper lip in the wiper arm along its longitudinal extent.

[0021] The actuating button can be arranged at different positions on the wiper arm. For example, the actuating button can be arranged on the outer end of the wiper arm or in the vicinity of the pivot point of the wiper arm. The actuating button can be formed on the wiper arm. Here, the actuating button can be configured as a spring tongue. The actuating button can engage in the pressed-in position for fixing the wiper lip. In a modified design, the actuating button can be pressed in to release a fixing.

[0022] The wiper arm can be configured as a one-piece component. In a modified design, the wiper arm can be formed from a plurality of parts, and the actuating button is provided, in particular configured, on one of the parts. Description of the Drawings

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

[0024] Figure 1 A wiper device having a wiper arm and a wiper lip, in particular for a motor vehicle, is shown in a schematic spatial diagram according to a first embodiment;

[0025] Figure 2 Shown in a schematic spatial diagram according to a first embodiment in Figure 1 the wiper arm shown in;

[0026] Figure 3 Shown in a schematic spatial diagram according to a first embodiment in Figure 1 the wiper lip shown in, wherein the fixing by means of a fixing element that can be actuated by the actuating button of the wiper arm is schematically shown;

[0027] Figure 4 is shown schematically in Figure 1 the windshield wiper device shown in, when replacing the wiper lip;

[0028] Figure 5 is shown schematically according to a second embodiment in Figure 1 the windshield wiper device shown in; and

[0029] Figure 6 is shown schematically according to a third embodiment in Figure 1 the windshield wiper device shown in. Detailed Description

[0030] Figure 1 A windshield wiper device 1 having a wiper arm 2 and a wiper lip 3 is shown schematically in a spatial diagram according to a first embodiment. The windshield wiper device can be used in particular for a motor vehicle. The wiper arm 2 can then pull the wiper lip 3 on the glass of the motor vehicle, in particular the front windshield.

[0031] The wiper arm 2 has a fixing body 4. A fixing hole 5 is formed in the fixing body for connecting an electric motor. The rotation axis of the wiper arm 2 can be obtained through the fixing hole 5.

[0032] An accommodating profile 11 that is open at the end 10 of the wiper arm 2 is formed on the wiper arm 2. In this embodiment, the end 10 faces away from the fixing hole 5, so that it is the outer end 10 with respect to the rotational movement. The accommodating profile 11 of the wiper arm 2 extends along the longitudinal extension 12.

[0033] As shown in Figure 1 the wiper lip 3 is pushed into the accommodating profile 11 along the longitudinal extension 12 in the assembled state.

[0034] Figure 2 The wiper arm 2 shown in Figure 1 is shown schematically in a spatial diagram according to a first embodiment. In addition, Figure 3 The wiper lip 3 shown in Figure 1 is shown schematically in a spatial diagram according to a first embodiment.

[0035] A fixing mechanism 13 is provided on the wiper arm 2, and the fixing mechanism has an operating button 14. The wiper lip 3 has a recess 16. The fixing mechanism 13 has a fixing element 17 connected to the operating button 14, and the fixing element is embedded in the recess 16 of the wiper lip 3 in the assembled state.

[0036] Figure 3The fixing by means of a fixing element 17 which can be actuated by an actuating button 14 of the wiper arm 2 is schematically shown here. The fixing element 17 serves to fix the wiper lip 3 in an open receiving profile 11. The fixing mechanism 13 can be actuated by means of the actuating button 14 in such a way that the fixing element 17 engages in or is displaced from a recess 16.

[0037] Figure 4 A schematic illustration shows the situation of the wiper device 1 shown in Figure 1 when replacing the wiper lip 3. As shown by the double arrow 18, the worn-out wiper lip 3 can be removed. Then a new wiper lip 3 can be inserted. Subsequently, the wiper lip 3 can be locked, for example, by pressing corresponding to the arrow 19 and the engagement of the actuating button 14. In the present embodiment, the actuating button 14 is arranged at least approximately at the end 10 of the wiper arm 2.

[0038] The actuating button 14 of the fixing mechanism 13 is constructed on the wiper arm 2. In the present embodiment, the wiper arm 2 is integrally formed. The actuating button 14 can be constructed as a spring tongue 15 which is integrally realized on the wiper arm 2.

[0039] In order to fix the wiper lip 3 on the wiper arm 2, the receiving profile 11 has a fixing slit 20. The wiper lip 3 has a tab 21 and a retaining strip 22 connected to the tab 21. The design of the receiving profile 11 and the wiper lip 3 at the tab 21 and the retaining strip 22 match each other.

[0040] The tab 21 of the wiper lip 3 extends through the fixing slit 20 in the pushed-in state. This applies to the entire longitudinal extension 12. The retaining strip 22 then engages from the inside, that is, from the interior of the receiving profile 11, into the receiving profile 11 of the wiper arm 2.

[0041] The wiper arm 2 is closed at the end 10 except for the receiving profile 11. Only at the receiving profile 11 is the wiper arm 2 open at the end 10. The open cross-section 25 of the receiving profile 11 is formed here according to the retaining strip 22 of the wiper lip 3 and the tab 21 of the wiper lip 3.

[0042] In the present embodiment, the actuating button 14 is arranged on the outer end 10 of the wiper arm 2, while a fixing hole 5 is provided at the other end 30. In addition, the wiper arm 2 is integrally formed. The end 10 of the wiper arm 2 thus faces away from the other end 30 of the wiper arm 2 here.

[0043] Figure 5 A schematic illustration according to a second embodiment shows the situation in Figure 1The windshield wiper device 1 shown in

[0044] Figure 6 Shown in a schematic illustration according to a third embodiment is the Figure 1 windshield wiper device 1 shown in

[0045] The end 10 can in particular be configured as an inner end 10 or an outer end 10. The fixing body 4 with the fixing hole 5 is arranged at the end 10 configured as the inner end 10 ( Figure 6 ) or at the other end 30 ( Figures 1 to 5 ).

[0046] On the windshield wiper arm 2, a spoiler 35 is constructed which extends at least substantially within the longitudinal extension 12. The spoiler 35 extends at least approximately over the entire range of the longitudinal extension 12. If the windshield wiper arm is configured in multiple parts as shown in Figure 2 , the spoiler 35 also extends at least approximately over the entire range of the longitudinal extension 12, that is, also within, for example, the sub-component 31.

[0047] The spring tongue 15 can be realized by means of a U-shaped slot 40 in the windshield wiper arm 2 or in the sub-component 31 of the windshield wiper arm 2.

[0048] The invention is not limited to the described embodiments.

Claims

1. A windshield wiper device (1), in particular for a motor vehicle, comprising a wiper arm (2) and a wiper lip (3), It is characterized in that A receiving contour (11) which is open at one end (10) of the wiper arm (2) is formed on the wiper arm (2), the wiper lip (3) being able to be pushed into the receiving contour along a longitudinal extension (12), and at least one fixing mechanism (13) is provided on the wiper arm (2), the fixing mechanism being used to fix the wiper lip (3) in the open receiving contour (11), and at least one operating button (14) of the fixing mechanism (13) being formed on the wiper arm (2).

2. The wiper device according to claim 1, It is characterized in that The wiper lip (3) has a recess (16), and the fastening device (13) has a fastening element (17) connected to the actuation button (14) and which engages in the recess (16) of the wiper lip (3) in the assembled state.

3. The wiper device according to claim 1 or 2, It is characterized in that a) the receiving contour (11) has a fixing slot (20), the wiper lip (3) has a web (21) and a retaining strip (22) connected to the web (21), and the web (21) of the wiper lip (3) extends through the fixing slot (20) in the inserted state, wherein the retaining strip (22) engages inwardly in the receiving contour (11) of the wiper arm (2); and / or b) The wiper arm (2) is designed to be closed at the end (10) at least substantially except for the receiving contour (11), and the open cross section (25) of the receiving contour (11) is designed at least substantially in accordance with the retaining strip (22) of the wiper lip (3) and the web (21) of the wiper lip (3).

4. The windshield wiper device according to any one of claims 1 to 3, It is characterized in that The operating button (14) is arranged at least approximately on the outer end (10) of the wiper arm (2).

5. The windshield wiper device according to any one of claims 1 to 4, It is characterized in that The operating button (14) is arranged at least approximately on the inner end (10) of the wiper arm (2).

6. The windshield wiper device according to any one of claims 1 to 5, It is characterized in that A fixing hole (5) for the wiper arm (2) is formed on the inner end (30) of the wiper arm (2).

7. The windshield wiper device according to any one of claims 1 to 6, It is characterized in that The wiper arm (2) is designed at least substantially in one piece.

8. The windshield wiper device according to any one of claims 1 to 6, It is characterized in that The wiper arm (2) is constructed in multiple parts, and the actuation button (14) is arranged on a sub-part (31) of the wiper arm (2).

9. The windshield wiper device according to claim 8, It is characterized in that The wiper arm (2) has a fixing body (4) on which a fixing hole (5) is formed.

10. The windshield wiper device according to any one of claims 1 to 9, It is characterized in that A spoiler (35) is formed on the wiper arm (2) and extends at least substantially within the region of the longitudinal extension (12).

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