WO2013057005A1 - Balai d'essuie-glace - Google Patents

Balai d'essuie-glace Download PDF

Info

Publication number
WO2013057005A1
WO2013057005A1 PCT/EP2012/069912 EP2012069912W WO2013057005A1 WO 2013057005 A1 WO2013057005 A1 WO 2013057005A1 EP 2012069912 W EP2012069912 W EP 2012069912W WO 2013057005 A1 WO2013057005 A1 WO 2013057005A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiper blade
output element
disc
main extension
facing
Prior art date
Application number
PCT/EP2012/069912
Other languages
German (de)
English (en)
Inventor
Bart Vankerkhove
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
Priority to CN201280051324.7A priority Critical patent/CN103857568B/zh
Priority to EP12769663.1A priority patent/EP2768705A1/fr
Publication of WO2013057005A1 publication Critical patent/WO2013057005A1/fr

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
    • B60S1/3806—Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
    • B60S1/381—Spoilers mounted on the squeegee or on the vertebra
    • 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
    • B60S1/3874—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra
    • B60S1/3875—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section
    • B60S1/3879—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section placed in side grooves in the squeegee

Definitions

  • the present invention relates to a wiper blade according to the preamble of claim 1.
  • a wiper blade for wiping windows of a motor vehicle is known from DE 100 07 800 A1, which comprises a rubber-elastic wiper strip, which has a main extension direction, and a support unit with a spring rail, wherein the wiper strip in an operative assembly state parallel to the main extension direction at the Spring rail is held.
  • the wiper blade further comprises a cover unit for covering a side facing away from the disc side of the support unit.
  • the cover unit can have a spoiler or be designed as such to avoid an underflow of the wiper blade.
  • Discs in particular of panes of motor vehicles, having a main extension direction, a rubber-elastic wiper strip which can be applied to the pane to be wiped and a support unit, the wiper strip being held in an operative assembly state substantially parallel to the main extension direction on the support unit, and with one the carrying unit attached cover unit for covering at least part of a upper side of the carrying unit.
  • a "main extension direction” is to be understood as meaning, in particular, a direction which runs parallel to an outer edge of the wiper blade and in which the wiper blade has its largest dimension.
  • Wischblatts be understood in which all components of the wiper blade are assembled according to design.
  • the wiper blade has at least one output element for generating an operating state during a drive of the motor vehicle by a wind substantially directed to the disc output force, wherein in the operational state of installation, the output element at least in a related in the main extension direction section both one of the disc facing side of the output element as well as on a side facing away from the disc
  • a "ready-to-use installation state” should in particular be understood to mean a state of the wiper blade in which the design-assembled wiper blade is installed at a location of the motor vehicle intended for this purpose.
  • a "side facing the pane” is to be understood as meaning, in particular, that part of an outer surface of the output element which is detected in an operative state of installation by an imaginary projection beam emanating therefrom in a direction perpendicular to a central region of the pane and all elements
  • a "side facing away from the disk” is to be understood as meaning, in particular, that part of the outer surface of the output element which is not detected by the imaginary projection light beam.
  • the term "circulated by the wind” is to be understood in particular to mean that the airstream is split in a stationary state of the flow on an outer surface of the driven element, flows along the surface of the driven element and reunites in the flow direction behind the driven element.
  • this can be achieved by generating a force directed onto the disk by the wind on the driven element. bar, which increases with increasing speed and effectively prevents lifting of the wiper blade from the disc.
  • a wiper blade having an improved behavior of preventing lift-off from the wheel at a high traveling speed can be provided.
  • the force directed onto the disk can be generated in a structurally particularly simple manner.
  • the side of the at least one output element facing away from the disk has a concave curvature in the plane perpendicular to the main extension direction.
  • the side facing away from the disc of the at least one output element in the plane perpendicular to the Schoerstreckungsnchtung have both a side part with a convex curvature and a side part with a concave curvature.
  • the output element can be made structurally particularly simple, compact and without sharp edges potentially posing a safety risk in the event of an impact event.
  • the side of the at least one output element facing the disk has an exclusively convex curvature in the plane perpendicular to the main extension, a structurally particularly simple and compact solution can likewise be provided.
  • a directed to the disc force is at a suitable design on
  • Output element and the cover unit in the direction of the disc from each other spaced apart. As a result, good flow around the output element can be ensured, and the output wind can effectively produce an output force directed toward the disk on the output element.
  • a support unit is arranged between the driven element and the cover unit, which comprises at least two individual supports. This allows a good flow around the driven element by the wind and at the same time a secure mounting of the output element to the cover unit can be achieved.
  • At least two of three elements of a group formed by the output member, the support unit and the cover unit are integrally formed.
  • one-piece in this context should in particular be cohesively connected, as understood, for example, by a welding process and / or gluing process or another process familiar to a person skilled in the art, and particularly advantageously formed, such as by the production from a casting and / or by the production In this way, a secure mounting of the integrally formed elements and a cost-effective production thereof can be achieved.
  • a favorable drag coefficient and low noise development can advantageously be achieved if the at least one output element has a section facing the travel wind, whose cross-sectional area in the plane which is perpendicular to the main extension is bounded by a circular section.
  • the portion of the output element facing the airstream in the case of the impact event for a human is not a security risk.
  • the at least one output element has a section facing away from the airstream, whose cross-sectional area in the plane which is perpendicular to the main extension is bounded by a circular section.
  • FIG. 1 shows a wiper blade according to the invention in a half-side partial view
  • FIG. 2 shows a sectional view of the wiper blade according to FIG. 1 along a line A - A '
  • FIG. 1 shows a wiper blade according to the invention in a half-side partial view
  • FIG. 2 shows a sectional view of the wiper blade according to FIG. 1 along a line A - A '
  • FIG. 1 shows a wiper blade according to the invention in a half-side partial view
  • FIG. 2 shows a sectional view of the wiper blade according to FIG. 1 along a line A - A '
  • FIG. 1 shows a wiper blade according to the invention in a half-side partial view
  • FIG. 2 shows a sectional view of the wiper blade according to FIG. 1 along a line A - A '
  • FIG. 1 shows a wiper blade according to the invention in a half-side partial view
  • FIG. 2 shows a sectional view of the wiper blade according
  • Fig. 3 is a detail view of an output element of the wiper blade in a
  • Fig. 1 shows a wiper blade for wiping a window 10 of a motor vehicle in an operative state of installation in a half-side partial view. For clarity, existing end caps are not shown at the ends of the wiper blade.
  • the wiper blade has a disk to be wiped 10 can be applied, rubber-elastic wiper strip 14, which is arranged along a main extension direction 12 of the wiper blade.
  • the wiper strip 14 comprises a wiper lip 16, which is connected via a tilting web to a head strip 18 of the wiper strip 14 (FIG. 2). In the operational installation state, the wiper lip 16 rests on the disk 10 (FIG. 1).
  • a wiper strip is shown with tilting web.
  • the wiper blade could also be equipped with a tilt-free wiper strip.
  • the wiper strip 14 is held on a support unit 22, which comprises a band-like, resilient mounting rail 24 in a known manner, which engages in longitudinal grooves 20 of the head strip 18 (FIG. 2).
  • the elastic support rail 24 protrudes on both sides beyond the head strip 18 of the wiper blade.
  • connection device for counter-connecting means of a wiper arm movable between reversing positions is arranged on an upper side facing away from the pane 10 in the operative installation state.
  • Suitable connection devices are known from the prior art and will therefore not be explained in detail here.
  • the connection device may include a hinge unit for adjusting a relative position of the wiper blade with respect to the wiper arm. In principle, however, the connection device can also be designed without hinges.
  • the cover unit 28 has claw elements 30 formed on longitudinal sides which run parallel to the main extension direction 12 in an operational assembly state.
  • the cover unit 28 is attached to the support unit 22 by the claw elements 30 engage around the side of the header 18 projecting support rail 24.
  • FIG. 1 on a side facing away from the disc 10, a support unit 32 produced integrally with the cover unit 28 in an injection molding process as well as an airfoil-shaped output element 36 (FIG. 1) likewise produced in the injection molding process in one piece with the cover unit 28 are shown, wherein the Support unit 32 in the ready-installed state in the direction of
  • Disc 10 is disposed between the output element 36 and the cover unit 28.
  • the support unit 32 includes four individual supports 34 oriented radially to the main extension direction 12 (of which two individual supports 34 are shown in FIG. 1), by means of which the driven element 36 and the cover unit 28 are arranged spaced apart from one another in the direction of the pane 10 in the ready-for-installation state ,
  • the output member 36 includes in the operational state of installation one of
  • the output member 36 is in the ready-installed state in the main extension direction 12 contiguous sections 38 between the individual supports 34 both on the disc 10 facing side 40 of the output element 36 and on the side facing away from the disc 10 42
  • Output element 36 flows around freely from a running wind, which arises during a drive of the motor vehicle.
  • the support unit 32 comprises four individual supports 34, there are three contiguous sections 38 of this type between the individual supports 34.
  • contiguous sections 38 of the output element 36 at both ends of the wiper blade are also in the main extension direction 12 on both the side facing the window 10 and 40 on the side facing away from the disc 10 42 flows around unhindered.
  • FIG. 2 shows a sectional view of the wiper blade along a line AA 'according to FIG. 1, in a plane oriented perpendicular to the main extension direction 12.
  • a substitutionwindraum 60 which runs in Fig. 2 substantially from top right to bottom left.
  • the disc 10 facing side 40 of the output element 36 has an exclusively convex curvature.
  • the side facing away from the disc 10 42 of the output element 36 has both a first side part 44 with a convex curvature and a second side part 46 with a concave
  • a section of the output element 36 facing away from the travel wind has, in the plane oriented perpendicular to the main extension direction 12, a cross-sectional area which is bounded by a second circle section 50.
  • a radius of the first circular section 48 is greater than a radius of the second circular section 50.
  • a first circle center 52 of the first circle section 48 is spaced closer to the disc 10 than a second circle center 54 of the second circle section 50.
  • Wiper strip 14 generates (Fig. 2), a lifting of the wiper strip 14 of the Disc 10, in particular at high speed of the motor vehicle, advantageously prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Quality & Reliability (AREA)
  • Mechanical Engineering (AREA)
  • Window Of Vehicle (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un balai d'essuie-glace destiné à essuyer des vitres (10), en particulier des vitres (10) d'un véhicule à moteur, présentant une direction longitudinale principale (12), une lame d'essuie-glace (14) en caoutchouc souple pouvant d'appliquer contre la vitre (10) à essuyer et un ensemble support (22), la lame d'essuie-glace (14) étant maintenue, dans un état de montage prêt à fonctionner, par l'ensemble support (22) sensiblement parallèlement à la direction longitudinale principale (12), ainsi qu'un ensemble de recouvrement (28) fixé sur l'ensemble support (22) pour recouvrir au moins une partie d'une face supérieure (26) de l'ensemble support (22). Selon l'invention, le balai d'essuie-glace présente au moins un élément de dérive (36) pour produire une force de dérive (62) orientée sensiblement vers la vitre (1), dans un état de montage prêt à fonctionner, sous l'effet du vent relatif lors du déplacement du véhicule. L'élément de dérive (36), dans son état de montage prêt à fonctionner, est contourné par l'écoulement d'air, au moins dans une partie (38) contiguë à la direction longitudinale principale (12), aussi bien sur une face (40) de l'élément de dérive (36) se trouvant orientée vers la vitre que sur une face (42) de l'élément de dérive (36) opposée à la vitre.
PCT/EP2012/069912 2011-10-21 2012-10-09 Balai d'essuie-glace WO2013057005A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201280051324.7A CN103857568B (zh) 2011-10-21 2012-10-09 刮水片
EP12769663.1A EP2768705A1 (fr) 2011-10-21 2012-10-09 Balai d'essuie-glace

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110084955 DE102011084955A1 (de) 2011-10-21 2011-10-21 Wischblatt
DE102011084955.6 2011-10-21

Publications (1)

Publication Number Publication Date
WO2013057005A1 true WO2013057005A1 (fr) 2013-04-25

Family

ID=47002873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/069912 WO2013057005A1 (fr) 2011-10-21 2012-10-09 Balai d'essuie-glace

Country Status (4)

Country Link
EP (1) EP2768705A1 (fr)
CN (1) CN103857568B (fr)
DE (1) DE102011084955A1 (fr)
WO (1) WO2013057005A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01108865U (fr) * 1988-01-15 1989-07-24
DE10007800A1 (de) 2000-02-21 2001-08-23 Valeo Auto Electric Gmbh Wischblatt
DE10037338A1 (de) * 2000-07-29 2002-02-21 Valeo Auto Electric Gmbh Scheibenwischvorrichtung
DE10312979A1 (de) * 2003-03-24 2004-10-07 Robert Bosch Gmbh Wischblatt zum Reinigen von Scheiben insbesondere von Kraftfahrzeugen
FR2886252A1 (fr) * 2005-05-30 2006-12-01 Bosch Gmbh Robert Balai d'essuie-glace
DE102006036777A1 (de) * 2006-08-07 2008-02-14 Robert Bosch Gmbh Wischblatt

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01108865U (fr) * 1988-01-15 1989-07-24
DE10007800A1 (de) 2000-02-21 2001-08-23 Valeo Auto Electric Gmbh Wischblatt
DE10037338A1 (de) * 2000-07-29 2002-02-21 Valeo Auto Electric Gmbh Scheibenwischvorrichtung
DE10312979A1 (de) * 2003-03-24 2004-10-07 Robert Bosch Gmbh Wischblatt zum Reinigen von Scheiben insbesondere von Kraftfahrzeugen
FR2886252A1 (fr) * 2005-05-30 2006-12-01 Bosch Gmbh Robert Balai d'essuie-glace
DE102006036777A1 (de) * 2006-08-07 2008-02-14 Robert Bosch Gmbh Wischblatt

Also Published As

Publication number Publication date
EP2768705A1 (fr) 2014-08-27
CN103857568A (zh) 2014-06-11
DE102011084955A1 (de) 2013-04-25
CN103857568B (zh) 2016-12-21

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