US20080022478A1 - Flat-Blade Windscreen Wiper Blade Comprising An Aerodynamic Deflector - Google Patents

Flat-Blade Windscreen Wiper Blade Comprising An Aerodynamic Deflector Download PDF

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Publication number
US20080022478A1
US20080022478A1 US11/547,823 US54782305A US2008022478A1 US 20080022478 A1 US20080022478 A1 US 20080022478A1 US 54782305 A US54782305 A US 54782305A US 2008022478 A1 US2008022478 A1 US 2008022478A1
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US
United States
Prior art keywords
section
wiper blade
windscreen wiper
blade according
deflector
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Abandoned
Application number
US11/547,823
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English (en)
Inventor
Jean-Michel Jarasson
Sebastien Jallet
Flavien Dubief
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.)
Valeo Systemes dEssuyage SAS
Original Assignee
Valeo Systemes dEssuyage SAS
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Application filed by Valeo Systemes dEssuyage SAS filed Critical Valeo Systemes dEssuyage SAS
Assigned to VALEO SYSTEMES D'ESSUYAGE reassignment VALEO SYSTEMES D'ESSUYAGE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DUBIEF, FLAVIEN, JARASSON, JEAN-MICHEL, JALLET, SEBASTIEN
Publication of US20080022478A1 publication Critical patent/US20080022478A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • B60S1/3881—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section in additional element, e.g. spoiler
    • 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
    • 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
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3817—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
    • B60S2001/382—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support the backing strip being an essentially planar reinforcing strip, e.g. vertebra

Definitions

  • the present invention relates to a flat-blade windscreen wiper blade for a motor vehicle.
  • the invention relates, in particular to a windscreen wiper blade of a motor vehicle of the type that comprises
  • a support frame with a longitudinal main orientation which comprises bottom means for supporting a wiping strip and a tubular body with a longitudinal main axis, which is delimited by a horizontal bottom wall and by two vertical longitudinal lateral walls;
  • a strip for wiping the window to be wiped which extends longitudinally below the central element and which comprises a bottom longitudinal wiping edge that cooperates with the face of the window to be wiped;
  • an element forming an aerodynamic deflector which extends longitudinally above the central rigidifying element and along at least one section of the latter and which, in a vertical cross-section, has a contour with an overall triangular shape comprising a horizontal base side, a front side that delimits the part of the aerodynamic deflector that faces the wind, and a rear side with an overall vertical orientation, which delimits the side of the deflector that is behind the wind and which is connected to the front side by a section that delimits the top free end top longitudinal edge of the deflector.
  • the invention provides a windscreen wiper blade of the preceding type, characterised in that the H/L ratio of the total height H of the windscreen wiper blade separating the top edge of the aerodynamic deflector from the bottom wiping edge of the wiping strip to the overall transversal width of the windscreen wiper blade, measured on the plane of the rigidifying element, is comprised between 1.5 and 2.
  • the front side of the triangular contour comprises a substantially rectilinear bottom section that forms an acute angle B in relation to the bottom horizontal edge;
  • said acute angle B is comprised between 5 and 35 degrees
  • said bottom section extends substantially to the right of a median vertical plane of the central rigidifying element and of the bottom wiping strip;
  • said bottom section of the front side of the triangular contour is followed by an intermediate section substantially forming a concave arc of circle;
  • the radius R of said intermediate concave section is comprised between 50% and 70% of said total overall width
  • the front side of the triangular contour comprises a top end section
  • said top end section of the front side is substantially rectilinear and has a vertical orientation
  • the top end section of the front side is substantially forming a convex arc of circle
  • said top end section of the front side extends over a marginal vertical height Hv comprised between 15% and ⁇ 25% of the overall height Hsp of the aerodynamic deflector;
  • the rear side of the triangular contour comprises a top section that is overall parallel to the top section of the front side;
  • the rear side of the triangular contour comprises an intermediate section that is overall parallel to the intermediate section of the front side;
  • the top rectilinear section of the rear side extends to the right of the rear lateral edge of the central rigidifying element
  • the rear side of the triangular contour comprises a bottom section forming a concave arc of circle
  • the transversally most internal point of the bottom section forming a concave arc of circle of the rear side is located transversally set back towards the inside in relation to the rear lateral edge of the central rigidifying element;
  • the horizontal distance P separating said most internal point of the rear lateral edge from the central support element is comprised between 15% and 25% of said total overall width L;
  • the section that delimits the top edge of the aerodynamic deflector is semi-circular in shape
  • the thickness e of the top part of the aerodynamic deflector separating the two vertical and rectilinear top sections is comprised between 8% and 15% of said total overall width L.
  • FIG. 1 is a diagrammatic large-scale view that shows, in a cross-section across a vertical plane, a section that is characteristic of a first embodiment of a windscreen wiper blade manufactured according to the instructions of the invention
  • FIG. 2 is a view similar to that shown in FIG. 1 , which illustrates a first alternative embodiment of the general confirmation of the aerodynamic deflector;
  • FIG. 3 is a view similar to that shown in FIG. 1 , which illustrates the top part of the windscreen wiper blade with a second alternative embodiment of the general confirmation of the aerodynamic deflector;
  • FIGS. 4 and 5 are two detail views that illustrate two alternative embodiments of the top part of the aerodynamic deflector of the windscreen wiper blade according to the invention.
  • FIG. 6 is a detail view that illustrates an alternative embodiment of the leading edge.
  • the windscreen wiper blade 10 shown in FIG. 1 consists essentially of a support frame with a longitudinal main orientation, which comprises bottom means for supporting a wiping strip and a tubular body with a longitudinal main axis which is delimited by a top horizontal wall, a bottom horizontal wall and two vertical longitudinal lateral walls.
  • the central tubular body 12 is, for example, made by moulding from a rigid or semi-rigid plastic material.
  • the windscreen wiper blade 10 shown in FIG. 1 also consists of a bottom wiping strip 14 made from rubber or a natural or synthetic elastomer, made by extrusion, and of a top aerodynamic deflector or spoiler 16 made from a rigid or flexible synthetic material attached to the central body 12 or made by co-extrusion or co-moulding with this body 12 .
  • the central body 12 has an overall rectangular section, with its long side placed according to the horizontal plane and its short side placed according to the vertical plane.
  • the central body 12 has a general symmetry of design in relation to the median vertical plane PVM, which is also the plane of symmetry of the bottom wiping strip 14 .
  • the hollow central body 12 delimits an internal hollow housing 18 with a rectangular contour which accommodates, with free play in order to allow slight relative movements, in particular in the longitudinal direction, a structural element in the form of a longitudinal horizontal strip, a central longitudinal element 20 with a rectangular section which is a structural element in the form of a longitudinal horizontal strip, or a rigidifying spine which, in association with the hollow body 12 , constitutes the structure of the flat-blade windscreen wiper blade 10 and which also affords the windscreen wiper blade its elasticity in the vertical and longitudinal planes, allowing it to adapt to the confirmation and, in particular, to the curve of the outside face or top face 22 of the window 24 to be wiped.
  • the top face of the central body 12 comprises a top housing or recess 26 with a flat horizontal bottom that accommodates the bottom part of the deflector 16 .
  • the central body 12 is extended vertically downwards from its bottom face 30 by sections of two opposing ribs 32 with an L-shaped cross-section forming hooks that delimit a bottom housing 34 with a rectangular section, which accommodates, with free play, the top flat heel 36 , with rectangular section, of the bottom wiping strip 14 .
  • the strip 14 is of a generally known design and includes, at the bottom, a bottom wiping blade 38 which ends in a bottom edge 40 for wiping the face 22 of the window 24 .
  • top part of the windscreen wiper blade 10 which essentially consists of the aerodynamic deflector 16 and, more particularly, of the various shape and profile aspects of its contour in a cross-section across a vertical plane.
  • This contour is overall triangular with:
  • a bottom side or base AM which is rectilinear and horizontal and which extends above the flat base 28 of the central body 12 ;
  • AE front side AE, overall curved and concave
  • the top edge 42 in this case has a convex semi-circular section EF whose diameter defines the width or marginal thickness “e” of the thin top part 44 of the aerodynamic deflector 16 .
  • the total height of the windscreen wiper blade is defined as being the vertical distance “H” that separates the tip of the top edge 42 of the deflector 16 from the bottom wiping edge 40 of the bottom wiping blade 38
  • the front side AE comprises a first bottom section AC that is substantially rectilinear or concavely curved with a very large radius which, in the example shown in FIG. 1 , extends from point A to point C, which is located substantially at the level of the plane of symmetry PVM.
  • the straight line AC forms, together with the horizontal plane and, for example, the bottom side AM, an acute angle “B” also called angle of incidence of the deflector 16 .
  • the angle B is positive, that is to say that the section AC is “above” the bottom horizontal side AM.
  • the front side AE comprises a concavely curved intermediate section CD which in this case, by way of example, is a section forming a concave arc of circle with a constant radius “R”.
  • the concave intermediate section CD can comprise several successive parts with different radii.
  • the front side AE which delimits the main front lateral face of the aerodynamic deflector 16 , facing the wind—comprises a third top end section DE which, in the example of FIG. 1 , is a rectilinear section with a vertical orientation, that is to say, parallel to the vertical plane of symmetry PVM.
  • the main active part of the aerodynamic deflector 16 made up of the concave intermediate section CD and by the top section or tip DE—is situated overall behind or to the rear of the median vertical plane PVM.
  • Marginal height “Hv” refers to the vertical distance that separates the lowest point D of the third top section DE from the tip of the top edge 42 of the deflector 16 .
  • the height Hsp of the deflector 16 refers to the vertical distance that separates the bottom side AM from the tip of the top edge 42 of the deflector 16 .
  • the rear side MF comprises a first concavely curved bottom section MJ which in this case, by way of example, is a section substantially forming an arc of circle.
  • the first concave bottom section MJ comprises an intermediate point K which is the most transversally internal point of this section, that is to say, which is as close as possible to the plane of symmetry PVM.
  • the point K is therefore situated at a horizontal distance “P” from the rear vertical edge NQ of the central body 12 which in this case is a vertical rectilinear section that is vertically in line with the third top end section GF of the rear side MF, which is a rectilinear vertical section parallel to the section DE of the front side AE.
  • P is therefore the distance separating the point K from the rearmost point of the top rear section FG, that is to say, the most distant point from the plane PVM.
  • the length or height of the section GF is greater than the length or height of the section DE.
  • the rear side MF comprises a second intermediate section JG which is a convexly curved section, in this case overall forming an arc of circle and substantially parallel to the concave section CD, but with a radius that is slightly greater than the latter and not concentric.
  • the lowest point M of the rear side MF in this case is connected to the top point N of the rear vertical edge NQ of the central body 12 by a section MN forming a convex arc of circle, in the same way as the bottom point Q is connected to the bottom edge or face 30 of the central body 12 by a section QS forming a convex arc of circle.
  • the front edge or leading edge 46 of the windscreen wiper blade in this case is the leading edge of the central body 12 which is the edge, or profile surface, that is situated the furthest forward in the fluid flow or relative flow of air to which the windscreen wiper blade 10 is subjected.
  • the leading edge 46 comprises a front rectilinear vertical section VU, the top point of which is connected to the lowest point A of the front side AE of the aerodynamic deflector 16 by a convexly curved section VA substantially forming an arc of circle, and in which the bottom point U Q is connected to the bottom edge or face 30 of the central body 12 by a section UT forming a convex arc of circle.
  • the total overall width “L” of the windscreen wiper blade thus corresponds to the horizontal distance separating the front VU and rear NO external vertical sections or edges of the central body 12 .
  • the ratio of total width L/total height H is such that:
  • the total width L is around 10 mm.
  • the angle of incidence B is positive and is preferably such that:
  • the angle B is around 15 degrees.
  • the radius R of the concave intermediate section CD is comprised between 50% and 70% of the total overall width L.
  • the radius of curvature R of the concave intermediate section CD is thus comprised between 5 mm and 7 mm and the total height Hsp of the aerodynamic deflector 16 is equal to around 7.5 mm.
  • the marginal thickness e of the aerodynamic deflector 16 is such that:
  • the thickness e of the top end part of the aerodynamic deflector 16 is substantially equal to 1 mm.
  • the marginal height Hv of the aerodynamic deflector 16 is such that:
  • the resulting height Hv is approximately 1.5 mm.
  • the distance or “dip” P of the rear face behind the wind of the deflector is such that:
  • P is, for example, equal to approximately 2 mm.
  • Ha is therefore comprised between 0.5 mm and 3 mm.
  • the added or extruded or moulded deflectors are generally defined by an overall shape or by an average angle of the wing in relation to the plane of the windscreen to be wiped.
  • the deflectors thus manufactured have limited efficiency or are inefficient, resulting in a loss of performance and therefore of wiping quality and a risk in terms of safety
  • the aerodynamic performance of a profile is the combination of several criteria including:
  • the re-attachment point which defines the distance for re-attachment of the air flows behind or to the rear of the profile.
  • the projected lifting surfaces at the front, at the middle (deflector, tip included) or at the rear of the profile.
  • the principle of the solutions proposed according to the present invention consists of obtaining the best dimensional compromise and therefore an H/L dimensional ratio with a value comprised between 1.5 and 2.
  • the active part of the deflector is shifted towards the rear of the profile such as to increase the performance, as is the dip “P” formed in the rear of the profile, which enables a reduction in the amount of turbulence.
  • the channelling and the guiding of the air flows over the surface of the deflector are improved such as to reduce the aerodynamic disturbances and thereby improve the performance of the profile.
  • the profile and the shape of the leading edge make up the surface of the blade that is the furthest forward in the fluid flow, for an angle of attack equal to zero, that is to say, when the windscreen wiper blade is in its position shown in FIG. 1 , in which the plane PVM is orthogonal to the surface 22 to be wiped.
  • the flow is, in a first approximation, separated into two parts: a bottom part re-circulated at the bottom of the wiping blade 38 , and another top part that interacts with the aerodynamic deflector 16 of the wiping blade 10 .
  • the role of the leading edge is to suitably guide the flow over the deflector in order to obtain the best push effect.
  • the angle of incidence B corresponds overall to the slope between the end of the leading edge which corresponds to the point A and the start of the concave curvature CE of the deflector 16 .
  • the angle of incidence B allows the flow of air to be guided and to remain in contact with the active surface CD+DE of the aerodynamic deflector 16 .
  • the value of this angle B must be comprised between 5 and 35 degrees. Below 5 degrees, the air flow hits the active concave surface of the deflector, creating a whirl and thus a disturbance. Above 35 degrees, the air flow is deflected by the slope of the first section AC and is no longer guided along the active concave surface CD of the aerodynamic deflector 16 . Therefore, in extreme slopes, the flow passes “above” the active concave surface, causing an inefficiency of the deflector and therefore poor aerodynamic performance.
  • the concave curvature CD with a radius R of the aerodynamic deflector 16 makes it possible, the same as the angle of incidence B, to guide the air flow towards the top vertical surface DE of the aerodynamic deflector 16 , ideally with no whipstall along the front surface.
  • the advantage of the concave curvature CD is that it “brakes” the air flow at the level of the deflector and thus creates an overpressure. A part of this overpressure is converted into lift, that is to say a pushing force, opposed to the lifting or separation of the blade and the wiping blade, and the other part is converted into drag.
  • the effect is more predominant than for a substantially rectilinear deflector facing the wind AE, which allows the fluid to slide over this front surface without locally generating an overpressure that is high enough to obtain a pushing effort.
  • an excessively hollow concave surface CD of the aerodynamic deflector 16 does not provide acceptable performance levels, especially for negative angles of attack, due to the generation of a local low pressure area characterised by a whirl, generated by the stalling of the fluid at the level of the leading edge or along the deflector. Therefore, the shape of the leading edge and the curvature of the deflector must be optimised together for a range of angles of attack of the wiping blade comprised between ⁇ 10 and +10 degrees.
  • the relative increase of the marginal height Hv enables an increase in the performance of the deflector, in particular for the negative angles of attack. This also makes it possible to reduce possible influence of the vortex areas that exist at the bottom of the deflector and which can be caused by partial, incomplete optimisation of the leading edge, due to manufacturing and production-related constraints. This also makes it possible to increase, for the negative angles of attack, the surface projected for the overpressure lift (push effect). On the other hand, this also leads to considerably increased drag for angles of incidence equal to zero, which requires this marginal vertical height to be optimised in order to find the best compromise between drag and negative lift.
  • the aerodynamic lift of the profile must be optimum in every position of the windscreen wiper blade in relation to the surface 22 of the windscreen or the window to be wiped.
  • the two-dimensional simulations show that a profile can have good performance levels for an angle of incidence equal to zero, and its performance can be considerably reduced in more extreme positions.
  • the value of the angle of attack of these extreme positions defined by experimentation, varies between ⁇ 10 et +10 degrees in relation to the theoretical vertical position on the windscreen, corresponding to the to and fro positions of the windscreen wiper blade when wiping in an alternating sweeping movement.
  • the geometry of the top tip of the aerodynamic deflector 16 is also dimensioned and positioned with precision since it influences the overall performance of the profile of the aerodynamic deflector 16 . Indeed, the smaller the projected surface, the better the performance of the profile when positioned at +10 degrees.
  • the tip of the deflector must be as thin as possible in order to reduce the projected lift surface, the limit being set by the production constraints. It must also allow the air flow to remain attached and it must direct the latter such as to reduce the size of the recirculation area behind the blade.
  • the windscreen wiper blade 10 shown in FIG. 2 is overall similar to that of FIG. 1 .
  • leading edge sections AV and MN are symmetrical in relation to the plane PVM and have a convex profile forming an arc of circle.
  • the thin top part with vertical orientation 44 of the aerodynamic deflector 16 is overall shifted transversally towards the inside in the direction of the plane PVM. In this way there exists a gap “d”, which is the horizontal distance.
  • the top part of the windscreen wiper blade 10 shown in FIG. 3 is overall similar to that of FIG. 1 .
  • leading edge sections AV and MN are symmetrical in relation to the plane PVM and have a convex profile forming an arc of circle with a larger radius.
  • the thin top part with vertical orientation 44 of the aerodynamic deflector 16 is overall shifted transversally towards the inside in the direction of the plane PVM. In this way there exists a gap “d”, which is the horizontal distance.
  • the front VU and rear NQ sections are no longer vertical, instead they are tilted in the direction of the plane PVM in order to facilitate the division of the air flow into two parts, without any excessive square edges thanks to the transition between the section forming an arc of circle with a large radius AV and the rectilinear section VU.
  • the top end point E of the section DE is higher than the top end point F of the section GF with a flat free top “edge” of the thin part 44 , that is to say that the section EF is rectilinear.
  • the third top rear section FG is rectilinear and vertical with its top end point F being the highest point of the deflector 16 , while the section EF which corresponds to the top edge of the fine part 44 is a convex quarter circle.
  • each rib can have a triangular or substantially square or trapezoidal profile.
  • the height of the ribs, the number of them and their distribution can vary without departing from the context of the invention, as is the case with their profile, which can also be, for example, rounded and convex.
  • the top edge of the aerodynamic deflector corresponding to the section EF can comprise holes or notches or crimped sections, longitudinally distributed along the trailing edge of the aerodynamic deflector;
  • the concave section profile CE of the active part of the aerodynamic deflector facing the wind does not necessarily form an arc of circle with a constant radius, but can also comprise several consecutive concave parts with different radii;
US11/547,823 2004-04-07 2005-04-04 Flat-Blade Windscreen Wiper Blade Comprising An Aerodynamic Deflector Abandoned US20080022478A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0403619A FR2868747B1 (fr) 2004-04-07 2004-04-07 Balai d'essuie-glace de type flat-blade comportant un deflecteur aerodynamique
FR04/03619 2004-04-07
PCT/EP2005/003507 WO2005108177A1 (fr) 2004-04-07 2005-04-04 Balai d'essuie-glace de type flat-blade comportant un déflecteur aérodynamique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/003507 A-371-Of-International WO2005108177A1 (fr) 2004-04-07 2005-04-04 Balai d'essuie-glace de type flat-blade comportant un déflecteur aérodynamique

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/521,574 Continuation US10252702B2 (en) 2004-04-07 2014-10-23 Flat-blade windscreen wiper blade comprising an aerodynamic deflector

Publications (1)

Publication Number Publication Date
US20080022478A1 true US20080022478A1 (en) 2008-01-31

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Family Applications (3)

Application Number Title Priority Date Filing Date
US11/547,823 Abandoned US20080022478A1 (en) 2004-04-07 2005-04-04 Flat-Blade Windscreen Wiper Blade Comprising An Aerodynamic Deflector
US14/521,574 Expired - Fee Related US10252702B2 (en) 2004-04-07 2014-10-23 Flat-blade windscreen wiper blade comprising an aerodynamic deflector
US16/291,461 Active 2025-09-14 US10919499B2 (en) 2004-04-07 2019-03-04 Flat-blade windscreen wiper blade comprising an aerodynamic deflector

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Application Number Title Priority Date Filing Date
US14/521,574 Expired - Fee Related US10252702B2 (en) 2004-04-07 2014-10-23 Flat-blade windscreen wiper blade comprising an aerodynamic deflector
US16/291,461 Active 2025-09-14 US10919499B2 (en) 2004-04-07 2019-03-04 Flat-blade windscreen wiper blade comprising an aerodynamic deflector

Country Status (15)

Country Link
US (3) US20080022478A1 (fr)
EP (1) EP1732793B2 (fr)
JP (1) JP5072590B2 (fr)
KR (1) KR101206140B1 (fr)
CN (1) CN1953891A (fr)
AT (1) ATE485978T1 (fr)
BR (1) BRPI0509656B1 (fr)
CA (1) CA2562374C (fr)
DE (1) DE602005024376D1 (fr)
ES (1) ES2354364T3 (fr)
FR (1) FR2868747B1 (fr)
MX (1) MXPA06011590A (fr)
PL (1) PL1732793T5 (fr)
RU (1) RU2363602C2 (fr)
WO (1) WO2005108177A1 (fr)

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US20100037417A1 (en) * 2006-02-02 2010-02-18 Trico Products Beam blade windshield wiper assembly having an airfoil
US20100218332A1 (en) * 2009-02-27 2010-09-02 Trico Products Corporation Windshield wiper assembly having an optimized airfoil
US20100299862A1 (en) * 2007-06-26 2010-12-02 Xavier Boland Windscreen wiper device
US20110081515A1 (en) * 2008-04-23 2011-04-07 Robert Bosch Gmbh Process for producing extrudates, an extruded profile and its use as wiping rubber
USD702616S1 (en) 2012-11-15 2014-04-15 Trico Products Corporation Wiper blade airfoil
USD704126S1 (en) 2012-11-15 2014-05-06 Trico Products Corporation Wiper blade
US20140143974A1 (en) * 2011-07-12 2014-05-29 Valeo Systèmes D' Essuyage Semi-rigid windshield wiper blade having an offset spoiler
US20150274128A1 (en) * 2014-04-01 2015-10-01 Trico Products Corporation Winter wiper assembly
US10710555B2 (en) 2013-09-11 2020-07-14 Denso Corporation Wiper blade and method for manufacturing wiper blade

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RU2006139026A (ru) 2008-05-20
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CN1953891A (zh) 2007-04-25
JP2007532380A (ja) 2007-11-15
FR2868747B1 (fr) 2008-06-20
DE602005024376D1 (de) 2010-12-09
PL1732793T5 (pl) 2017-09-29
KR20070033969A (ko) 2007-03-27
US20190193687A1 (en) 2019-06-27
ATE485978T1 (de) 2010-11-15
RU2363602C2 (ru) 2009-08-10
EP1732793B1 (fr) 2010-10-27
EP1732793A1 (fr) 2006-12-20
JP5072590B2 (ja) 2012-11-14
US10919499B2 (en) 2021-02-16
BRPI0509656A (pt) 2007-10-09
ES2354364T3 (es) 2011-03-14
US20150040338A1 (en) 2015-02-12
BRPI0509656B1 (pt) 2014-09-23
CA2562374A1 (fr) 2005-11-17
EP1732793B2 (fr) 2016-10-26
FR2868747A1 (fr) 2005-10-14
US10252702B2 (en) 2019-04-09
CA2562374C (fr) 2012-12-18
KR101206140B1 (ko) 2012-11-28
MXPA06011590A (es) 2007-01-23

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