EP3898347A1 - Wischblatt, insbesondere für eine scheibe eines kraftfahrzeugs - Google Patents
Wischblatt, insbesondere für eine scheibe eines kraftfahrzeugsInfo
- Publication number
- EP3898347A1 EP3898347A1 EP19808579.7A EP19808579A EP3898347A1 EP 3898347 A1 EP3898347 A1 EP 3898347A1 EP 19808579 A EP19808579 A EP 19808579A EP 3898347 A1 EP3898347 A1 EP 3898347A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- wiper
- tilting web
- tilting
- wiper blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000033001 locomotion Effects 0.000 description 7
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
- B60S2001/3836—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape
Definitions
- Wiper blade in particular for a window of a motor vehicle
- the invention relates to a wiper blade, in particular for a window of a motor vehicle, according to the independent claim.
- wiper blades for windshields of motor vehicles which have a carrier element and a wiper strip, the wiper strip having a wiper lip and a carrier section for fastening the wiper strip to the carrier element.
- wiper blades comprise a first tilting web, which is used to fasten the wiper lip to the carrier section.
- these wiper blades are fastened to a wiper arm by means of a fastening element engaging on the carrier element. This presses the wiper lip onto the window. In operation, the wiper blades then swing back and forth on the window between two reversal positions. Due to the friction between the wiper lip and the window, the wiper lip attached to the tilting web is dragged behind the carrier element over the window. In the reverse position, the towing direction reverses and the tipping bar tilts to the other side. This causes noises that can be annoying.
- the wiper blade according to the invention with the features of the main claim has the advantage that the wiper lip is fastened to the carrier section by the first tilting web and at least one second tilting web approximately parallel to the first tilting web. In this way, annoying noises, in particular in the reverse positions, are advantageously avoided when the wiper blade is in operation.
- first tilting web and the second tilting web are parallel to the extent that they enclose an angle of at most 20 degrees, in particular at most 15 degrees, since the noise development is particularly reduced in this way.
- first tilting web and the second tilting web enable the wiper lip to move horizontally and at least one support strip is provided to limit this horizontal movement.
- a simple and inexpensive and therefore advantageous embodiment is achieved in that the carrier section, starting from the first tilting web and from the second tilting web, in each case has a free end in which the
- Carrier section of the wiper strip is attached to the carrier element.
- the carrier section surrounds the
- Carrier element like a clamp.
- the first tilting bar and the second tilting bar have the same tilting bar length.
- the distance of the first support strip from the first tilting web is smaller than the distance of the first tilting web from the second tilting web. This also effectively reduces noise.
- a further reduction in the noise development advantageously results from the fact that the length of the support web of the support web is smaller than the length of the support web of the first or the second support web.
- Figure 1 shows a wiper blade according to the invention in a schematic
- Figure 2 shows a cross section through an inventive wiper blade
- Figure 3 shows a cross section through an inventive wiper blade in a
- a wiper blade 10 according to the invention is shown in a schematic side view. This comprises a carrier element 12, the one
- Wiper strip 14 holds. For attachment to a wiper arm
- a fastening element 16 is provided, which is approximately in the middle of the Longitudinal extension of the wiper blade 10 is arranged and attached to the support member 12. Along its longitudinal extent, the wiper blade 10 is closed by an end cap 18.
- the carrier element 12 is designed as a steel rail that extends along the entire longitudinal extent of the wiper blade 10 and on which the fastening element 16 is welded.
- the steel rail of the carrier element 12 is bent in such a way that a desired distribution of the bearing force results when the wiper blade 10 is fastened to the fastening element 16 by the wiper blade
- FIG. 2 shows a cross section of a wiper blade 10 according to the invention, which rests on a window 20, in a schematic representation. Elements that are not essential to the invention have been omitted for reasons of clarity.
- the wiper strip 14 is fastened to the carrier element 12.
- the wiper strip 14 comprises a carrier section 22, which is designed in two parts and explained in more detail below.
- a first tilting web 24 and a second tilting web 26 are fastened to the carrier section 22, to which in turn the wiper lip 28 is fastened, which in the assembled position rests on the motor vehicle on the window 20 of the motor vehicle.
- a first support strip 30 is arranged, which extends from the support section 22 approximately parallel to the first tilting web 24 in the direction of the wiper lip 28.
- a second support strip 32 is arranged approximately parallel to the second tilting web 26, which also extends from the
- Holding section 22 extends in the direction of the wiper lip 28, approximately parallel to the second tilting web 26, downward.
- the first tilting web 24 and the second tilting web 26 are approximately parallel to one another and only inclined to one another by approximately 10 degrees. Parallel in this sense means that the first tilting web 24 and the second tilting web 26 form an angle of includes a maximum of 20 degrees.
- the first tilting web 24 and the second tilting web 26 have a tilting web length LI.
- the length of the tipping bar LI of the first tipping bar 24 and the second tipping bar 26 is approximately two millimeters here.
- the length of the first support web 30, that is to say the support web length L2 is approximately 1.6 millimeters.
- the length of the second support web 32 is approximately the support web length L2. In a variation, the lengths of the first support web 30 and the second support web 32 can also be selected differently.
- the support web length L2 is somewhat smaller than the tilt web length LI.
- the first support web 30 and the second support web 32 do not touch the wiper lip 28 here.
- the wiper lip 28 is essentially triangular in cross section, one of the corners of the triangle resting on the window 20 and thus forming a wiping edge 34.
- this edge may not be sharp, but flat, that is, with a bevel, so that two wiping edges 34 are formed.
- the first tilting web 24 and the second tilting web 26 are arranged on the long side of the triangle of the wiper lip 28 facing away from the wiping edge 34. These extend parallel, in the sense described above, in the direction of
- Carrier element 12 thus in the direction of the carrier section 22 and are also fastened there to this.
- the carrier section 22 is divided into two and therefore has a first holding section 36 and a second holding section 38.
- the first tilting web 24 is fastened to the first holding section 36 and the second tilting web 26 to the second holding section 38.
- the first holding section 36 and the second holding section 38 are in this case in the form of angle elements, thus approximately L-shaped, in each of which one leg extends in the direction of the other angle.
- a U-shaped configuration of the carrier section 22 is created, with an incision in the base line of the U-shape.
- the base line of the U-shape of the support section 22 runs approximately parallel to the support element 12 and thus approximately parallel to the disk 20. At the boundaries of the incision in the base line, and therefore at the ends of the first holding element 36 and the second holding element 38, which are not included the carrier element 22 are connected, the first tilting web 24 and the second tilting web 26 are then fastened.
- the end of the holding element 36 facing away from it is fastened to the carrier element 12, for example glued or welded on.
- the holding element 38 is also fastened to the end facing away from the second tilting web 26 on the carrier element 12 and, for example, glued there.
- the wiper strip 14 is made in one piece from a rubber-like plastic,
- Carrier element 12 like a clamp.
- the clasp encompasses the
- Grips around the support element 12 in a clamp-like manner can be supported, for example, by additional gluing or welding, for example by ultrasonic welding. It is also possible here for further positive locking elements along the longitudinal extent of the wiper blade 10, between the carrier element 12 and the first holding element 36
- the smallest distance A between the first tilting web 24 and the second tilting web 26 is greater than the distance B of the first support strip 30 from the first Tipping bar 24.
- the distance A between the first tipping bar 24 and the second tipping bar 26 is approximately 2 millimeters and is smaller than the width or height, and thus the size of the wiper lip 28.
- the distance B of the first support strip 30 from the first tilting bar 24 is the same is as large as the distance B between the second tilting web 26 and the second support strip 32.
- first support strip 30 and the second support strip 32 can be made thinner in cross section than the thickness of the first tilting web 24 or the second tilting web 26.
- first supporting web 30 can also be thicker than the first tilting web 24 and the second support strip 32 can be made thicker than the second tilting web 26.
- the wiper blade 10 which is connected to a wiper arm by means of the fastening element 16, swings over the disk 20.
- the carrier element 12 is set in a horizontal movement which is caused by the
- Movement arrow 40 is symbolized.
- the carrier section 22 of the wiper strip 14 is set in motion.
- Horizontal mobility 42 is made possible, which is symbolically represented by a double arrow in FIG.
- first tilting web 24 and the second tilting web 26 are deflected from their relaxed position, namely until they strike the respectively assigned first support strip 30 and second support strip 32, thereby limiting the horizontal mobility 42.
- the wiper lip 28 will initially adhere to the window 20 and in Course of the further movement of the support section 22 to the right
- Wiper lip 28 quasi deflected to the left. This deflection of the wiper lip 28 by the elastic first tilting web 24 and also the elastic second tilting web 26 extends until the first tilting web 24 touches the first support strip 30 and in this respect from a further deflection by the first
- Support strip 30 is prevented.
- the wiper blade 10 When the wiper blade 10 reaches the reversed position of its oscillating movement, the wiper blade 10 then moves to the left in the plane of the drawing.
- the wiper lip 28 is dragged along with the deformation of the first tilting web 24 and the second tilting web 26, the deformation of the second tilting web 26 being limited by the contact of the second support strip 32 and thus on further deformation of the second tilting web 26, and thus also of the first tilting web 24 is prevented.
- the wiper lip 28 itself tilts around the wiping edge 34 or, if the wiping edge 34 has a chamfer, to the other side of the wiping edge 34.
- the support web length L2 is smaller than the tilting web length LI, so that the first support web 30 and the second support web 32 are in a relaxed position from the window 20 more than an upper edge of the wiper lip 28.
- a wind deflector strip can be arranged on the side of the carrier element 12 facing away from the wiper lip 28.
- the fastening element 16 is made of plastic and welded to the carrier element 12. However, it can also be made of metal,
- the carrier element 12 can also be made of plastic, a fiber-reinforced material or carbon instead of metal.
- the wiper blade 10 can also be provided with a heating device which
- the carrier element 12 and the wiper strip 14 are heated.
- the tilting web length LI can also be only about 1 millimeter.
- the distance B between the first Kippsteg 24 and the first support strip 30 also only be about 0.5 millimeters. This also applies to the distance between the second tilting web 26 and the second support strip 32.
- the length of the support web L2 can also be chosen to be shorter, for example between 0.3 and 0.8 millimeters.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seal Device For Vehicle (AREA)
- Window Of Vehicle (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018222774.8A DE102018222774A1 (de) | 2018-12-21 | 2018-12-21 | Wischblatt, insbesondere für eine Scheibe eines Kraftfahrzeugs |
PCT/EP2019/082106 WO2020126296A1 (de) | 2018-12-21 | 2019-11-21 | Wischblatt, insbesondere für eine scheibe eines kraftfahrzeugs |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3898347A1 true EP3898347A1 (de) | 2021-10-27 |
Family
ID=68653477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19808579.7A Withdrawn EP3898347A1 (de) | 2018-12-21 | 2019-11-21 | Wischblatt, insbesondere für eine scheibe eines kraftfahrzeugs |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3898347A1 (de) |
DE (1) | DE102018222774A1 (de) |
WO (1) | WO2020126296A1 (de) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB815453A (en) * | 1956-11-23 | 1959-06-24 | Gen Motors Corp | Improvements in or relating to windscreen wipers |
US3636583A (en) * | 1970-01-26 | 1972-01-25 | Ian K Rosen | Squeegee blade |
DE10022724A1 (de) * | 2000-05-10 | 2001-11-22 | Bosch Gmbh Robert | Wischleiste für Scheibenwischer |
-
2018
- 2018-12-21 DE DE102018222774.8A patent/DE102018222774A1/de active Pending
-
2019
- 2019-11-21 WO PCT/EP2019/082106 patent/WO2020126296A1/de unknown
- 2019-11-21 EP EP19808579.7A patent/EP3898347A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE102018222774A1 (de) | 2020-06-25 |
WO2020126296A1 (de) | 2020-06-25 |
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Legal Events
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Effective date: 20221110 |
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18D | Application deemed to be withdrawn |
Effective date: 20230523 |