Connection system for a windscreen wiper

Abstract

The present invention relates to a connection system (150) for a windscreen wiper (300) comprising a retaining spring (120) and an adjustment element (130), wherein the retaining spring (120) can be connected to a wiper blade adapter (110) so as to be non-destructively releasable and so as to be rotatable with respect to one another, wherein the retaining spring (120) and the adjustment element (130) can be connected to one another so as to be non-destructively releasable, wherein the adjustment element (130) has a first connecting structure (131), wherein the retaining spring (120) has a second connecting structure (222) which differs from the first connecting structure (131), wherein the first connecting structure (131) can be connected to a first connecting end (211) of a first windscreen wiper arm (210) so as to be non-destructively releasable, wherein the second connecting structure (222) can be connected to a second connecting end (221) of a second windscreen wiper arm (220) so as to be non-destructively releasable.

Description

[0001] Description

[0002] title

[0003] Connection system for a windscreen wiper

[0004] State of the art

[0005] The present invention relates to a connection system for a windscreen wiper and to a vehicle having such a connection system for a windscreen wiper.

[0006] There are currently a multitude of different solutions for connecting a wiper arm to a wiper blade. Each manufacturer has different ways of connecting the wiper arm to the wiper blade. This means that not every wiper arm can be combined with every wiper blade. Therefore, different models with different connection points must be available for the same wiper to adapt it to different wiper arms.

[0007] Disclosure of the invention

[0008] The connection system according to the invention for a windscreen wiper with the features of claim 1 has the advantage over the known system that several different windscreen wiper arms can be attached to one and the same windscreen wiper.

[0009] This is achieved according to the invention in that the connection system for a windshield wiper comprises a retaining spring and an adaptation element. The retaining spring can be connected to a wiper blade adapter so that it can rotate relative to one another and can be detachably connected to one another in a non-destructive manner. The retaining spring and the adaptation element can be detachably connected to one another in a non-destructive manner. The adaptation element has a first connection structure. The retaining spring has a second connection structure different from the first connection structure. The first connection structure can be detachably connected to a first connection end of a first windshield wiper arm in a non-destructive manner. The second connection structure can be detachably connected to a second connection end of a second windshield wiper arm in a non-destructive manner.

[0010] In other words, the connection system consists of two components: a retaining spring and an adapter element. The retaining spring can be connected to a second connection end of a second windshield wiper arm, and the adapter element can be connected to a first connection end of a first windshield wiper arm. The retaining spring and the adapter element can be connected to one another in a non-destructive manner. In practice, this means that to connect a second windshield wiper arm and a wiper blade adapter, the retaining spring is first placed on the wiper blade adapter. If the second windshield wiper arm has a second connection end, this can be attached directly to the retaining spring. No adapter element is necessary for this. However, if the first windshield wiper arm has a first connection end, the adapter element must be connected to the retaining spring, and the first connection end is connected to the adapter element.The same wiper adapter and wiper blade are still used. Thanks to the non-destructive detachability of the retaining spring and adapter, this can be done as often as required. This allows one wiper blade to be used for at least two different connection ends. For adjustment, either the retaining spring is used directly, or the adapter is connected to the retaining spring and the adapter is used.

[0011] The subclaims show preferred developments of the invention.

[0012] The retaining spring and the adaptation element can preferably be connected to one another in a form-fitting manner. An advantage of this embodiment is the simple plugging together of the adaptation element and the retaining spring. This allows a user to quickly and easily switch between a connection of a first connection end to the windshield wiper blade and a second connection end to the windshield wiper blade. The wiper blade adapter preferably has an axle stub. The retaining spring has a bore. The bore is designed to accommodate the axle stub. An advantage of this embodiment can be that it allows the retaining spring to be rotated relative to the wiper blade adapter. This enables a relative movement of the windshield wiper blade on a surface of a vehicle to be cleaned and ensures an improved wiping result on the surface.Furthermore, this design makes it easy to create the rotation between the retaining spring and the wiper blade adapter.

[0013] Particularly preferably, the second connection structure and the second connection end are configured as a first locking mechanism. An advantage of this embodiment may be that the second connection end can be easily connected to and separated from the retaining spring via the first locking mechanism.

[0014] Advantageously, the first connection structure has a connection bore. The connection bore is configured to receive a connection shaft stub of the first connection end. One advantage of this embodiment may be that the first connection end is rotatable relative to the first connection structure and the adaptation element. A further advantage may be that a movement of the first connection end relative to a normal of the longitudinal direction of the connection shaft stub is blocked by the connection bore. Thus, the adaptation element follows a movement of the first connection end or the first windshield wiper arm.

[0015] Advantageously, the adjustment element and the first connection end are rotatably connected to one another by means of the connection shaft stub of the first connection end. The retaining spring and the adjustment element are connected to one another by means of a second locking mechanism. One advantage of this embodiment may be that the windshield wiper blade follows the movement of a second windshield wiper arm.

[0016] The retaining spring preferably has a connecting web. The adaptation element has a connecting groove. The connecting groove is designed to receive the connecting web. The connecting web and the connecting groove both extend in a first direction. An advantage of this embodiment can be that, by means of the connecting groove and the received connecting web in the connecting groove, a relative movement between the adaptation element and the retaining spring follows in a direction different from the first direction. Thus, a relative movement is ensured by this simple design and a simple connectability between the retaining spring and the adaptation element.

[0017] Particularly preferably, the adaptation element has a first locking element. The retaining spring has a second locking element. The first locking element and the second locking element are designed to block a relative movement of the adaptation element to the retaining spring in a locked state in the first direction. An advantage of this embodiment can be that a relative movement in the first direction is blocked by means of the first locking element and the second locking element. This prevents the connecting web from being accidentally pushed out of the connecting groove. A further advantage of this embodiment can be that the adaptation element and the retaining spring also follow a movement in the first direction.

[0018] Advantageously, the second locking element is designed as a connecting protrusion, and the first locking element is designed as a connecting recess. The connecting protrusion adjoins the connecting web in the first direction. The connecting recess adjoins the connecting groove. An advantage of this embodiment can be that a compact design is achieved for the connection between the adjustment element and the retaining spring.

[0019] Particularly preferably, the first locking element has a first height in the first direction and a first width in a second direction. The second locking element has a second height in the first direction and a second width in the second direction. The first height corresponds to the second height. The second width is greater than the first width. An advantage of this embodiment can be that the first locking element follows a movement of the second locking element in the first direction. Thus, a movement of the adaptation element by means of the first locking element and the second locking element leads to a direct movement of the retaining spring. Advantageously, the connecting recess has an insertion opening and a blocking web. The blocking web is arranged at an end of the connecting recess opposite the connecting groove in the first direction.The connecting protrusion can be inserted into the connecting recess via the insertion opening along the first direction. One advantage of this embodiment can be that the blocking web prevents unintentional release of the locking connection. Furthermore, bringing the second locking element and the first locking element together is simplified by means of the insertion opening. Due to the offset of the insertion opening to the connecting groove, the connecting webs cannot be pushed directly onto the connecting groove via the insertion opening. Instead, the insertion protrusions must be pushed through the insertion groove via the insertion opening onto the connecting grooves and then sharpened. After sharpening, they are pushed further in and the second locking element moves out of the exit opening towards the connecting grooves and the blocking web. During this movement, the connecting webs move further into the connecting grooves.The locking bar prevents the connecting bars from being pulled directly out of the connecting groove. This prevents the adjustment element from accidentally detaching from the retaining spring.

[0020] The retaining spring preferably has a first outer side, a second outer side, and a third outer side. The first outer side and the third outer side are connected to the second outer side. The first outer side and the second outer side are opposite one another. The connecting web is arranged on the first outer side and / or the third outer side. This simple geometric design of the retaining spring allows for easy production of the retaining spring.

[0021] Particularly preferably, the adaptation element has a fifth inner side, a sixth inner side, and a seventh inner side. The fifth inner side and the seventh inner side are connected to the sixth inner side. The fifth inner side and the seventh inner side are arranged opposite one another. The connecting groove is arranged on the fifth inner side and / or the seventh inner side. This simple geometric design allows for easy manufacture of the holding element and thus reduces the manufacturing costs of the adaptation element. Furthermore, the invention comprises a windshield wiper system for a vehicle. The windshield wiper system has a windshield wiper blade, a first windshield wiper arm with a first connection end, or a second windshield wiper arm with a second connection end. The windshield wiper system has a connection system according to one of the preceding embodiments.The advantages of the windscreen wiper system correspond to the advantages of the respective design of the connection system.

[0022] The invention further encompasses a vehicle having a windshield wiper system. The vehicle has the corresponding advantages of the windshield wiper system.

[0023] Short description of the drawings

[0024] Embodiments of the invention are described in detail below with reference to the accompanying drawings. In the drawing:

[0025] Figure 1 is a schematic representation of a vehicle with a

[0026] Windscreen wiper system and a connection system according to an embodiment of the invention,

[0027] Figure 2 is a schematic representation of the windscreen wiper system with the connection system according to the embodiment of the invention,

[0028] Figure 3 is a schematic representation of the windscreen wiper system with the connection system of a first windscreen wiper arm according to the embodiment of the invention,

[0029] Figure 4 is a schematic representation of the windscreen wiper system with the connection system with a second windscreen wiper arm according to the embodiment of the invention,

[0030] Figure 5 is a schematic representation of an adaptation element according to the embodiment of the invention, Figure 6 is a schematic representation of a retaining spring according to the

[0031] Embodiment of the invention,

[0032] Figure 7 is a schematic representation of the windscreen wiper system with a connection system according to the embodiment of the invention with the first windscreen wiper arm, and

[0033] Figure 8 is a schematic representation of the connection system with a first connection end of the first windshield wiper arm according to the embodiment of the invention.

[0034] Embodiments of the invention

[0035] Preferably, all identical elements, units and / or assemblies in all figures have the same reference numerals.

[0036] Figure 1 shows a schematic representation of a vehicle 10 with a windshield wiper system 300 and a connection system 150 according to an exemplary embodiment of the invention. The windshield wiper system 300 has a windshield wiper blade 100, a first windshield wiper arm 210 with a first connection end 211, or a second windshield wiper arm 220 with a second connection end 212. The windshield wiper system 300 is arranged on a windshield 11 of the vehicle 10.

[0037] Figure 2 shows a schematic representation of the windshield wiper system 300 with the connection system 150 according to the exemplary embodiment of the invention. The connection system 150 has a retaining spring 120 and an adaptation element 130. The retaining spring 120 can be connected to a wiper blade adapter 110 in a rotatable and non-destructively releasable manner. The retaining spring 120 and the adaptation element 130 can be connected to each other in a non-destructively releasable manner. The adaptation element 130 has a first connection structure 131. The retaining spring 120 has a second connection structure 222 that is different from the first connection structure 131.

[0038] The first connection structure 131 can be non-destructively and removably connected to a first connection end 211 of a first windshield wiper arm 210. The second connection structure 222 can be non-destructively and removably connected to a second connection end 221 of a second windshield wiper arm 220. The wiper blade adapter 110 is configured to accommodate a windshield wiper blade 100.

[0039] The retaining spring 120 and the adaptation element 130 can be connected to one another in a form-fitting manner. The wiper blade adapter 110 has an axle stub 111. The retaining spring 120 has a bore 121. The bore 121 is configured to receive the axle stub 111. The second connection structure 222 and the second connection end 221 are designed as a first locking mechanism. The first connection structure 131 has a first connection bore 131. The first connection bore 131 is configured to receive a connection axle stub 212 of the first connection end 211. In this exemplary embodiment, the retaining spring 120 is rotatably arranged on the wiper blade adapter 110. The adaptation element 130 is arranged on the retaining spring 120.

[0040] Figure 3 shows a schematic representation of the windshield wiper system 300 with the connection system 150 and the first windshield wiper arm 210 according to the exemplary embodiment of the invention. The adjustment element 130 is arranged on the retaining spring 120. The adjustment element 130 is connected to a first connection end 211 of a first windshield wiper arm 210.

[0041] Figure 4 shows a windshield wiper system 300 with a connection system 150 according to the exemplary embodiment. A second connection end 221 of the second windshield wiper arm 220 is arranged directly on the retaining spring 120. The adaptation element 130 is not connected to the retaining spring 120 and is not required in this embodiment.

[0042] Figure 5 shows a schematic representation of the adaptation element 130 according to the exemplary embodiment of the invention. The adaptation element 130 has a connecting groove 132. The connecting groove 132 is configured to receive connecting webs 122 of the retaining spring 120. The adaptation element 130 has a first locking element 133. The first locking element 133 is designed as a connecting recess. The first locking element 133 has a first height 133a in a first direction 501 and a first width 133b in a second direction 502. The connecting recess has an insertion opening 134 and a blocking web 135. The blocking web 135 is arranged at an end of the connecting recess 133 opposite the connecting groove 132 in the first direction 501.

[0043] Figure 6 shows a schematic representation of the retaining spring 120 according to the exemplary embodiment of the invention. The retaining spring 120 has a connecting web 122. The connecting web 122 and the connecting groove extend in the first direction 501. The retaining spring 120 has a second locking element 123. The first locking element 123 and the second locking element 123 are configured to block a relative movement of the adaptation element 130 to the retaining spring 120 in a locked state in the first direction 501. The second locking element 123 is designed as a connecting elevation. The connecting elevation adjoins the connecting web in the first direction 501. The recess adjoins the connecting groove 132 in the first direction 501. The second locking element 123 has a second height 123a in the first direction 501 and a second width 123b in the second direction 502. The first height 133a corresponds to the second height 123a.The second width 123b is greater than the first width 133b. The connecting protrusion 123 can be inserted into the connecting recess 133 via the insertion opening 134 along the first direction 501.

[0044] Figure 7 shows a schematic representation of the windshield wiper system 300 with the connection system 150 according to the exemplary embodiment of the invention with the first windshield wiper arm. The connection system 150 is connected to the first connection end 211 of the first windshield wiper arm 210. The adaptation element 130 has the connection bore 131. The connection bore 131 is configured to receive the connection shaft stub 212 of the first connection end 211. The adaptation element 130 and the first connection element 211 are rotatably connected to one another by means of the connection shaft stub 212. The retaining spring 120 and the adaptation element 130 can be connected to one another by means of a second locking mechanism 140.

[0045] Figure 8 shows a schematic representation of a connection system 150 with a first connection end of the first windshield wiper arm according to the exemplary embodiment of the invention. The retaining spring 120 has a first outer side 120a, a second outer side 120b, and a third outer side 120c. The first outer side 120a and the third outer side 120c are connected to the second outer side 120b. The first outer side 120a and the second outer side 120b lie opposite one another. The connecting web 122 is arranged on the first side 120a and the third outer side 120c. The adaptation element 130 has a fifth inner side 130a, a sixth inner side 130b, and a seventh inner side 130c. The fifth inner side 130a and the seventh inner side 130c are connected to the sixth inner side 130b.

[0046] The fifth inner side 130a and the seventh inner side 130b are arranged opposite each other. The connecting groove 132 is arranged on the fifth inner side 130a and the seventh inner side 130c.

Claims

Claims 1 . A connection system (150) for a windshield wiper system (300), comprising: a retaining spring (120), and an adaptation element (130), wherein the retaining spring (120) is rotatable relative to a wiper blade adapter (110) and can be releasably connected to one another in a non-destructive manner, wherein the retaining spring (120) and the adaptation element (130) can be releasably connected to one another in a non-destructive manner, wherein the adaptation element (130) has a first connection structure (131), wherein the retaining spring (120) has a second connection structure (222) different from the first connection structure (131), wherein the first connection structure (131) can be releasably connected to a first connection end (211) of a first windshield wiper arm (210) in a non-destructive manner, wherein the second connection structure (222) is connected to a second connection end (221) of a second windshield wiper arm (220) can be connected in a non-destructive manner.

2. Connection system (150) according to claim 1, characterized in that the retaining spring (120) and the adaptation element (130) can be connected to one another in a form-fitting manner.

3. Connection system (150) according to one of the preceding claims, characterized in that the wiper blade adapter (110) has an axle stub (111), and the retaining spring (120) has a bore (121), wherein the bore (121) is adapted to receive the axle stub (111).

4. Connection system (150) according to one of the preceding claims, characterized in that the second connection structure (222) and the second connection end (221) are designed as a first locking mechanism (222).

5. Connection system (150) according to one of the preceding claims, characterized in that the first connection structure (131) has a connection bore (131 ), wherein the connection bore (131 ) is designed to receive a connection axle stub (212) of the first connection end (211 ).

6. Connection system (150) according to claim 5, characterized in that the adaptation element (130) and the first connection end (211) by means of the connection axle stub (212) and the Connection bore (131) are rotatably connected to one another, and the retaining spring (120) and the adaptation element (130) are connectable to one another by means of a second locking mechanism (10).

7. Connection system (150) according to one of the preceding claims, characterized in that the retaining spring (120) has a connecting web (122), and the adaptation element (130) has a connecting groove (132), wherein the connecting groove (132) is adapted to receive the connecting web (122), and wherein the connecting web (122) and the connecting groove (132) extend in a first direction (501).

8. Connection system (150) according to one of the preceding claims, characterized in that - the adjustment element (130) has a first locking element (133), and - the retaining spring (120) has a second locking element (123), wherein the first locking element (133) and the second locking element (123) are configured to block a relative movement of the adjustment element (133) to the retaining spring (120) in a locked state in the first direction (501).

9. Connection system (150) according to claim 8, characterized in that the second locking element (123) is designed as a connection elevation and the first locking element (133) is designed as a connection recess (133), wherein the connection elevation adjoins the connection web (122) in the first direction (501), and wherein the connection recess (133) adjoins the connection groove (132).

10. Connection system (150) according to one of claims 8 or 9, characterized in that the first locking element (133) has a first height (133a) in the first direction (501) and a first width (133b) in a second direction (502), and the second locking element (123) has a second height (123a) in a first direction (501) and a second width (123b) in the second direction (502), wherein the first height (133a) corresponds to the second height (123a), and wherein the first width (133b) is greater than the second width (123b).

11. Connection system (150) according to one of the preceding claims 9 or 10, characterized in that the connection recess (133) has an insertion opening (134) and a blocking web (135), wherein the blocking web (135) is arranged at an end of the connection recess (133) opposite the connection groove (132) in the first direction (501), and wherein the connecting elevation (123) can be inserted into the connecting recess (133) via the insertion opening (134) along the first direction (501).

12. Connection system (150) according to one of claims 7 to 11, characterized in that the retaining spring (120) has a first outer side (120a), a second outer side (120b) and a third outer side (120c), wherein the first outer side (120a) and the third outer side (120c) are connected to the second outer side (120b), wherein the first outer side (120a) and the second outer side (120b) are arranged opposite one another, and wherein the connecting web (122) is arranged on the first outer side (120a) and / or the third outer side (120c).

13. Connection system (150) according to one of claims 7 to 12, characterized in that the adaptation element (130) has a fifth inner side (130a), a sixth inner side (130b) and a seventh inner side (130c), wherein the fifth inner side (130a) and the seventh inner side (130c) are connected to the sixth inner side (130b), wherein the fifth inner side (130a) and the seventh inner side (130c) are arranged opposite one another, and wherein the connecting groove (132) is arranged on the fifth inner side (130a) and / or the seventh inner side (130c). 1 . A windshield wiper system (300) for a vehicle (10) comprising: a windshield wiper blade (100), a first windshield wiper arm (210) with a first connection end (211), or a second windshield wiper arm (220) with a second connection end (211), and a connection system (150) according to one of the preceding claims.

15. A vehicle (10) comprising a windshield wiper system (300) according to claim 14.

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