EP3880524A1 - Balai d'essuie-glace, en particulier pour un véhicule automobile - Google Patents

Balai d'essuie-glace, en particulier pour un véhicule automobile

Info

Publication number
EP3880524A1
EP3880524A1 EP19805910.7A EP19805910A EP3880524A1 EP 3880524 A1 EP3880524 A1 EP 3880524A1 EP 19805910 A EP19805910 A EP 19805910A EP 3880524 A1 EP3880524 A1 EP 3880524A1
Authority
EP
European Patent Office
Prior art keywords
wiper
wiper blade
carrier element
cavity
lip
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Withdrawn
Application number
EP19805910.7A
Other languages
German (de)
English (en)
Inventor
Reiner Lay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3880524A1 publication Critical patent/EP3880524A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B60S1/3848—Flat-type wiper blade, i.e. without harness
    • 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
    • B60S2001/3829—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by the material of the squeegee or coating thereof
    • 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 motor vehicle
  • the invention relates to a wiper blade, in particular for a motor vehicle, according to the independent claim.
  • wiper blades which comprise a carrier element and a wiper strip with a cavity and a wiper lip.
  • Wiper blades of this type are often relatively loud in operation, in particular in the turning positions in which the direction of movement of the wiper blade is reversed.
  • the wiper blade according to the invention with the features of the main claim has the advantage that the wiper lip is rigidly attached to the wiper strip. In this way, the folding of the wiper lip in the turning positions is effectively prevented, which results in a significant reduction in noise, especially in the turning positions.
  • the carrier element is arranged outside the cavity, since this also significantly improves or reduces the noise development.
  • the cavity is essentially round in cross-section and has no supports in its interior. This also significantly reduces noise generation.
  • the wiper lip has only a single wiping edge.
  • a wiper lip can be formed on a thermoplastic material in a cost-effective manner, which further reduces the noise.
  • the cavity is hermetically sealed.
  • the cavity is filled with gas, liquid or gel.
  • Carrier element is attached. This ensures optimal guidance of the wiper strip. In this way, the noise-reducing design of the wiper strip comes into full effect.
  • an adapter element is advantageously attached to the carrier element.
  • FIG. 1 shows a schematic view of a wiper blade according to the invention
  • FIG. 2 shows a cross section through a wiper blade according to the invention in FIG
  • a wiper blade 10 according to the invention is shown in a schematic illustration in FIG.
  • the wiper blade 10 essentially comprises one
  • Wiper strip 12 which is fastened to a carrier element 14.
  • the wiper lip 16 is arranged on the wiper strip 12 on the side facing away from the carrier element 14.
  • an adapter element 18 is arranged, which serves to fasten the wiper blade 10 to a wiper arm, not shown here.
  • the wiper strip 12 is rigidly attached to the carrier element 14.
  • the wiper lip 16 is also rigidly attached to the wiper strip 12 or is formed integrally therewith.
  • FIG. 2 shows the wiper blade 10 from FIG. 1 in cross section.
  • the carrier element 14 is in the form of a rectangular metal strip made of spring steel with a rectangular cross section and extends over the entire length of the wiper blade 10. It is between 0.5 millimeters and 2 millimeters thick and between 10 centimeters and 100 centimeters long.
  • the wiper strip 12 which has a circular cavity 20 in its interior, is fastened to the carrier element 14.
  • the wiper lip 16 is arranged, which is rigidly attached to the wiper strip 12 and has an approximately triangular shape in cross section.
  • the wiper lip 16 is connected to the wiper strip 12 such that a single wiper edge 22 is arranged on the side of the wiper lip 16 facing away from the wiper strip 12.
  • the height of the wiper lip 16 is approximately 5 millimeters, but can be varied between 1 millimeter and 15 millimeters depending on the application.
  • the wiper strip 12 is essentially round in cross section, and is therefore tubular, so that the cavity 20 is formed in the interior.
  • the wall thickness between the outer boundary of the cavity 20 and the The outer contour of the wiper strip 12 is between 0.3 millimeters and 2
  • the wiper blade 10 oscillates between two reversal positions on the window 24 of the motor vehicle.
  • two wiper edges are generally provided, the wiper lip being fastened movably to the wiper strip. The wiper strip then drags each
  • Wiper lip behind during the movement so that a wiping edge rests on the pane 24.
  • the direction of movement is changed in the reverse position.
  • the wiper lip tilts into the other drag position and continues its movement on the other wiping edge.
  • the wiper blade 10 according to the invention only one wiper edge 22 is provided, and such a tilting is avoided by the rigid attachment of the wiper lip 16 to the wiper strip 12.
  • the cavity 20 is filled with air, but can also be filled with a liquid or a gel in order to improve the damping between the carrier element 14 and the wiper lip 16 and, at the same time, to ensure optimal contact between the wiper lip 16 and the disk 24.
  • the cavity 20 of the wiper strip 12 should be hermetically sealed in order to prevent the damping liquid or the gel or the gas from escaping.
  • a fastening space can be provided, into which the carrier element 14 is inserted.
  • a clamp element can be provided on the wiper strip 12, into which the carrier element 14 is clamped.
  • the clip element can be formed in one piece with the wiper strip 12 and can thus be produced simultaneously with the wiper strip 12 and the wiper lip 16, for example in a multi-component extrusion process.
  • the adapter element 18 is made of metal as a cast or sheet metal part and welded onto the carrier element 14. However, it can also be done by a Brackets. In a variation, the carrier element 14 is made of plastic. The adapter element 18 can also be formed in one piece with the carrier element 14. Here, the fastening element 18 can be fastened to the carrier element 14, for example by ultrasonic welding.
  • the cavity 20 can also be elliptical or cuboid. A diamond-shaped design is also possible.
  • the wiper lip is made of thermoplastic material, for example PU, PA, HMW-PE. Materials that have better abrasion behavior than normal, commercially available rubber are particularly suitable here.
  • Wiper strip 12 itself, which forms the cavity 20, can also be made
  • thermoplastic material so that the wiper strip 12 with the squeegee 16 can also be produced in a one-component extrusion process.
  • the carrier element 14 is cut from a long steel strip, in particular spring steel, and has the same width along its length.
  • Carrier element 14 is further pre-bent such that its curvature is greater than the maximum curvature of the window for which wiper blade 10 is to be used. In any case, the carrier element 14 is pre-bent such that an optimal distribution of the contact force of the wiping edge 22 on the window 24

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ink Jet (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un balai d'essuie-glace (10) destiné en particulier à un véhicule automobile. Celui-ci comprend un élément support (14) et une lame d'essuyage (12), qui comprend un espace creux (20), ainsi qu'une lèvre d'essuyage (16). Selon l'invention, la lèvre d'essuyage (16) est fixée de manière rigide à la lame d'essuyage (12).
EP19805910.7A 2018-11-15 2019-11-12 Balai d'essuie-glace, en particulier pour un véhicule automobile Withdrawn EP3880524A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018219558.7A DE102018219558A1 (de) 2018-11-15 2018-11-15 Wischblatt, insbesondere für ein Kraftfahrzeug
PCT/EP2019/080915 WO2020099348A1 (fr) 2018-11-15 2019-11-12 Balai d'essuie-glace, en particulier pour un véhicule automobile

Publications (1)

Publication Number Publication Date
EP3880524A1 true EP3880524A1 (fr) 2021-09-22

Family

ID=68618116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19805910.7A Withdrawn EP3880524A1 (fr) 2018-11-15 2019-11-12 Balai d'essuie-glace, en particulier pour un véhicule automobile

Country Status (4)

Country Link
US (1) US20220009450A1 (fr)
EP (1) EP3880524A1 (fr)
DE (1) DE102018219558A1 (fr)
WO (1) WO2020099348A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2289996T3 (es) * 2000-10-23 2008-02-16 Federal-Mogul S.A. Limpiaparabrisas.
FR2884205B1 (fr) 2005-04-08 2007-05-18 Peugeot Citroen Automobiles Sa Raclette d'essuie-vitre perfectionnee et balai d'essuie-vitre pourvu d'une telle raclette
DE102007050171A1 (de) 2007-07-04 2009-01-15 Daimler Ag Wischgummi für einen Scheibenwischer
DE102007039563A1 (de) 2007-08-22 2009-02-26 Robert Bosch Gmbh Wischblatt
WO2011000403A1 (fr) 2009-06-29 2011-01-06 Federal-Mogul S.A. Dispositif d'essuie-glace
DE102013217930A1 (de) * 2013-09-09 2015-03-12 Robert Bosch Gmbh Wischlippe für eine Scheibenwischvorrichtung
CN104527604A (zh) * 2015-01-15 2015-04-22 陈学琴 三刮片柔性壁支承雨刮胶条

Also Published As

Publication number Publication date
DE102018219558A1 (de) 2020-05-20
WO2020099348A1 (fr) 2020-05-22
US20220009450A1 (en) 2022-01-13

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