WO2023186525A1 - Embout d'extrémité de balai d'essuie-glace pour véhicule - Google Patents
Embout d'extrémité de balai d'essuie-glace pour véhicule Download PDFInfo
- Publication number
- WO2023186525A1 WO2023186525A1 PCT/EP2023/056470 EP2023056470W WO2023186525A1 WO 2023186525 A1 WO2023186525 A1 WO 2023186525A1 EP 2023056470 W EP2023056470 W EP 2023056470W WO 2023186525 A1 WO2023186525 A1 WO 2023186525A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- zone
- tip
- slope
- aerodynamic profile
- longitudinal
- 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.)
- Ceased
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
- B60S1/3848—Flat-type wiper blade, i.e. without harness
- B60S1/3886—End caps
- B60S1/3894—End caps having a particular shape
-
- 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
-
- 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
- B60S1/3886—End caps
- B60S1/3887—Mounting of end caps
Definitions
- the invention relates in particular to an end cap and a windshield wiper blade for a vehicle.
- the vehicle can be land, sea, or air.
- the vehicle is, for example, a motor vehicle for the road.
- the invention applies in particular to wiping a glass surface such as a windshield.
- wiping systems for motor vehicles comprise at least one drive arm and a windshield wiper blade which comprises a scraper blade intended to be placed against a glass surface of the motor vehicle.
- the drive arm is driven in an angular back-and-forth movement against the glass surface of the motor vehicle, and during which it drives the windshield wiper blade and its scraper blade so that it rubs the glass surface and thus eliminates water, dirt and dust which can obstruct the vision that the driver of the motor vehicle has of his environment.
- the wiper blade is attached to the drive arm by a connection assembly which comprises a connector secured to the wiper blade and an adapter configured to cooperate with the wiper blade - ice and with an end part of the drive arm.
- This connection assembly is configured, on the one hand, to allow the back and forth movements of the scraper blade against the glazed surface considered, and, on the other hand, to guarantee effective pressing of the scraper blade against the glass surface in order to carry out effective wiping and/or cleaning.
- a disadvantage of known wiping systems is linked to the lack of uniformity and efficiency of wiping and/or cleaning over the entire length of the scraper blade, and more particularly at the level of a longitudinal end where potential poor contact of the scraper blade on the surface to be cleaned can lead to wiping failure.
- the present invention aims in particular to remedy this drawback.
- the subject of the invention is thus an end tip of a windshield wiper blade for a vehicle, this tip being arranged to be mounted at one end of a longitudinal mount which carries a scraper blade for cleaning a glazed surface, the end piece comprising a first zone arranged to receive an end portion of the longitudinal frame comprising a first aerodynamic profile and a second zone comprising a second aerodynamic profile, this second zone being arranged so that the portion end of the longitudinal mount received in the first zone is set back from this second zone, characterized in that the first aerodynamic profile of the first zone is different from the second aerodynamic profile of the second zone.
- the invention thus makes it possible to have wiping which is effective over the entire length of the broom, including at its ends where, in known devices, there is a risk of the scraper blade becoming detached.
- first and second aerodynamic profiles of the end tip each have a surface profile (called “offset”) such that a pressing force is applied over the entire length of the tip d end against the glass surface.
- the end piece comprises a step between the first zone and the second zone.
- walking is straight.
- this step is a flat surface perpendicular to a longitudinal direction of the broom.
- the end piece in the first zone, has sufficient dimensions to be able to envelop the end portion of the longitudinal frame, including a main aerodynamic profile of the frame, of so that the tip, in this first zone, has an external periphery which is larger than the main aerodynamic profile of the frame. So this outer periphery of the tip is not in the extension of the main aerodynamic profile.
- the first zone of the end piece has an enveloping shape around the shape of the end portion of the longitudinal frame.
- the end portion of the longitudinal frame extends in the tip up to the step, namely in the first zone and without overflowing into the second zone.
- This frame is made in particular by extrusion of a plastic material.
- the periphery of the tip is reduced relative to the periphery in the first zone so that the second aerodynamic profile is substantially in the extension of the main aerodynamic profile.
- the tip has an insertion side which is provided with an insertion opening arranged to allow the insertion of the longitudinal frame into the tip.
- the end piece comprises a hollow body forming the first zone which is open towards the second zone which is closed at its terminal end.
- the first zone and the second zone share a common bottom wall facing the glazed surface.
- the first zone is arranged to receive the end portion of the longitudinal mount and comprises a first upper wall for receiving the end portion of the longitudinal mount, this upper wall facing the common bottom wall, and this first upper wall forms the first aerodynamic profile.
- the second zone of the tip comprises a second upper wall facing the common bottom wall and forming the second aerodynamic profile.
- the height of the first zone is greater than the height of the second zone, the height of the first zone being the vertical distance measured between the bottom wall and a point of the first upper receiving wall, the height of the second zone being the vertical distance measured between the bottom wall and a point of the second upper wall.
- the point of intersection with the first zone is at a height greater than the height of the point of intersection of this line with the second zone.
- the longitudinal distance between the insertion opening and the step of the tip for example a distance of less than 10 mm, is smaller than the longitudinal distance between this step and the terminal end of the tip. This distance is between 5 and 6 mm for example.
- the first zone has a smaller length than the length of the second zone, these lengths being measured in the longitudinal direction of the blade.
- the second aerodynamic profile extends longitudinally over a major part of the tip, which provides a satisfactory aerodynamic downforce to press the blade onto the glass surface.
- the first zone has a length smaller than half, or a quarter, or a fifth, the length of the second zone.
- the tip comprises an aerodynamic leading edge, and the first and second aerodynamic profiles extend from this edge.
- the first aerodynamic profile has a slope greater than the slope of the second aerodynamic profile, at least in a region adjacent to the leading edge.
- the slope is measured by an angle between a plane parallel to the bottom wall of the tip and the aerodynamic profile.
- the second aerodynamic profile comprises a region of first slope which extends from the leading edge to a region of second slope, this second slope being greater than the first slope.
- the region of first slope is locally planar.
- the first slope region is flat over most of its total surface area.
- the angle of the slope of the first slope region is between 0° and 45, in particular between 10° and 30°.
- the angle of the slope of the second slope region is between 45° and 90°, in particular between 70° and 90°.
- the angle of the slope in the second slope region varies as one moves away from the first slope region.
- the region of second slope is connected to the region of first slope by forming a curved profile so as to promote aerodynamics.
- the second slope region is formed on a raised wing of the tip and the first slope region is formed on a base of the tip.
- the base is formed by the hollow body.
- the wing of the tip is formed by a solid wall of the tip.
- the solid wall is thus less thick than a double wall, for example U-shaped.
- the wing of the tip can be placed relatively rearward in relation to the leading edge so as to offer the widest possible aerodynamic surface.
- the wing has a crest line which is rectilinear, between the step and the terminal end of the tip.
- This crest line forms the top of this wing.
- the wing has a crest line which is curved, between the step and the terminal end of the tip.
- this curved ridge line approaches the leading edge of the tip as one moves from the step toward the terminal end of the tip.
- the height of the second aerodynamic profile is substantially constant between the step and the terminal end of the tip.
- the height of the first zone is greater than the height of the second zone so as to form the step.
- the height of the wing can be constant or increasing or decreasing, between the step and the terminal end of the tip.
- the end piece has a rear face, on the side opposite the leading edge, provided with a concave zone of concavity directed towards the outside of the blade, this concave zone being located at the junction of the wing on the base.
- the tip is made of plastic material, in particular as a single piece.
- the invention also relates to a windshield wiper blade comprising a scraper blade, a longitudinal mount with a main aerodynamic profile, mount to which the scraper blade is secured, and an end piece as described below above, this end piece being mounted at the end of the longitudinal mount.
- the second aerodynamic profile of the tip has a shape which is substantially an extension of the shape of the main aerodynamic profile of the longitudinal mount.
- the broom comprises two end pieces as described above, each being mounted at one of the two ends of the longitudinal mount.
- the broom comprises a single end piece as described above, mounted at one of the two ends of the longitudinal mount.
- the invention also relates to a system for wiping a vehicle glass surface, the wiping system comprising: - a wiper blade as described above, the wiper blade being intended to be brought into contact with the glass surface,
- a windshield wiper arm configured to drive the windshield wiper blade
- connection device configured to securely fix the wiper blade to the wiper arm.
- FIG.1 illustrates a perspective view of an exemplary embodiment of a windshield wiper blade conforming to an exemplary embodiment of the invention
- FIGURE 1 illustrates a perspective view of an end tip of the broom in FIGURE 1;
- FIG.3 illustrates a profile view of the end portion of the broom mount of FIGURE 1;
- FIG.4 illustrates a profile view of the end cap of FIGURE 1.
- Figure 1 illustrates a windshield wiper blade 1 conforming to an exemplary embodiment of the invention.
- This wiper blade 1 comprises a scraper blade 2, a longitudinal mount 3 to which the scraper blade 2 is secured and two end tips 10 of main longitudinal orientation according to an exemplary embodiment of the invention , as clearly visible in Figure 3.
- This frame 3 is made in particular by extrusion of a plastic material.
- Each end piece 10 is mounted at one of the ends of the longitudinal mount 3.
- This blade 1 is used in a system for wiping a vehicle glass surface, being mounted on a windshield wiper arm via a connection device 5 configured to securely fix the blade wiper 1 to the wiper arm, not shown.
- the longitudinal frame 3 comprises a main aerodynamic profile 6 arranged so that a relative wind, which is produced by the movement of the vehicle, produces a force tending to press the blade 1 onto the glass surface.
- the end piece 10 comprises a first zone 14 arranged to receive an end portion 8 of the longitudinal mount 3 comprising a first aerodynamic profile 17 and a second zone 15 comprising a second aerodynamic profile 1 1, this second zone 15 being arranged so that the end portion 8 of the longitudinal mount 3 received in the first zone 14 is set back from this second zone 15.
- the first aerodynamic profile 17 of the first zone 14 is different from the second aerodynamic profile 11 of the second zone 15.
- the second aerodynamic profile 11 is substantially in the extension of the main aerodynamic profile 6 of the longitudinal mount 3.
- the first zone 14 comprises a first upper wall 48 for receiving the end portion 8 of the longitudinal mount, this first upper wall 48 facing a common bottom wall 27.
- the second zone 15 of the end piece comprises a second upper wall 49 facing the common bottom wall 27 and forming the second aerodynamic profile 11.
- the end piece 10 includes a straight step 16 between the first zone 14 and the second zone 15.
- the tip 10 has sufficient dimensions to be able to envelop the end portion 8 of the longitudinal mount 2, including the main aerodynamic profile 6, so that the tip 10, in this first zone 14, has a first aerodynamic profile 17 which is larger than the main aerodynamic profile 6.
- this first aerodynamic profile 17 of the tip 10 is not in the extension of the main aerodynamic profile 6, as can be seen in Figure 2 in particular.
- the end portion 8 of the longitudinal mount 3 extends in the end piece 10 up to the step 16, namely in the first zone 14 and without overflowing into the second zone 15.
- the end piece 10 has an insertion side 20 which is provided with a lateral insertion opening 21 arranged to allow the insertion of the longitudinal mount 3 into the end piece 10.
- the longitudinal distance between the lateral insertion opening 21 and the step 16 of the end piece 10 is smaller than the longitudinal distance between this step 16 and the terminal end 22 of the end piece 10. This distance is between 5 and 6 mm for example.
- the first zone 14 has a length L1 smaller than the length L2 of the second zone 15, these lengths being measured in the longitudinal direction X of the blade 1.
- the second aerodynamic profile 11 extends over a major part of the end piece 10, which allows for a satisfactory aerodynamic support force to press the blade 1 onto the glass surface.
- the tip 10 comprises an aerodynamic leading edge 23, and the first and second aerodynamic profiles 17 and 11 extend from this edge 23.
- the second aerodynamic profile 11 comprises a region of first slope 24 which extends from the leading edge 23 to a region of second slope 25, as can be seen for example in Figure 4.
- the slope corresponds to the angle B between, on the one hand, a plane P adjacent to the bottom wall 27 of the tip 10 facing the scraper blade 2 and, on the other hand, the second aerodynamic profile 11 which includes regions 24 or 25.
- the first slope region 24 is inclined plane over most of its total surface area. [87] The angle B of the slope of the first slope region 24 is between 0° and
- the angle of the slope of the second slope region 25 is between 45° and 90°, in particular between 70° and 90°.
- the second slope region 25 connects to the first slope region 24 by forming a curved profile 28 so as to promote aerodynamics.
- the region of second slope 25 is formed on a raised wing 30 of the tip 10 and the region of first slope 24 is formed on a base 31 of the tip 10.
- the first aerodynamic profile 17 comprises a region of first slope 45 which extends from the leading edge 23 to a region of second slope
- the second slope is greater than the first slope.
- the slope corresponds to the angle A between, on the one hand, the plane P adjacent to the bottom wall 27 of the tip 10 facing the scraper blade 2 and, on the other hand, the first aerodynamic profile 17.
- the height of the first zone 14 is greater than the height of the second zone 15, the height of the first zone 14 being the vertical distance measured between the plane P adjacent to the bottom wall 27 and a point on the first upper receiving wall 48, the height of the second zone 15 being the vertical distance measured between the bottom wall 27 and a point of the second upper wall 49.
- the step 16 between zones 14 and 15 has a height of approximately 2 mm for example.
- the main aerodynamic profile 6 has, like the second aerodynamic profile 11, a region of first slope 40 extending into a region of steeper slope 41 formed on a wing 42.
- the base 31 of the end piece 10 is formed by a hollow body 51.
- the wing 30 of the end piece 10 is formed by a solid wall 32.
- the wing 30 of the tip 10 can be placed relatively rearward in relation to the leading edge 23 so as to provide the widest possible aerodynamic surface.
- the wing 30 has a crest line 33 which is rectilinear, between the step 16 and the terminal end 22 of the tip 10.
- This crest line 33 forms the top of this wing 30.
- the wing 30 has a crest line 33 which is curved, between the step 16 and the terminal end 22 of the tip 10.
- this curved crest line 33 approaches the leading edge 23 of the tip as one moves from the step 16 towards the terminal end 22 of the tip 10 .
- the height of the second aerodynamic profile 11 is substantially constant between the step 16 and the terminal end 22 of the tip 10.
- the height of the wing 30 can be constant or increasing or decreasing, between the step 16 and the terminal end 22 of the tip 10.
- the end piece 10 has a rear face 35, on the side opposite the leading edge 23, provided with a concave zone 36 of concavity directed towards the outside of the blade, this concave zone 36 being located at the junction of the wing 30 on the base 31.
- the end piece 10 is made of plastic, in particular as a single piece.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380030178.8A CN118946485A (zh) | 2022-03-31 | 2023-03-14 | 用于交通工具的雨刮片的端盖 |
| EP23711989.6A EP4499461A1 (fr) | 2022-03-31 | 2023-03-14 | Embout d'extrémité de balai d'essuie-glace pour véhicule |
| US18/850,639 US20250214538A1 (en) | 2022-03-31 | 2023-03-14 | End cap of a wiper blade for a vehicle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2202971 | 2022-03-31 | ||
| FR2202971A FR3134054B1 (fr) | 2022-03-31 | 2022-03-31 | Embout d’extrémité de balai d’essuie-glace pour véhicule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023186525A1 true WO2023186525A1 (fr) | 2023-10-05 |
Family
ID=83188356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/056470 Ceased WO2023186525A1 (fr) | 2022-03-31 | 2023-03-14 | Embout d'extrémité de balai d'essuie-glace pour véhicule |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250214538A1 (fr) |
| EP (1) | EP4499461A1 (fr) |
| CN (1) | CN118946485A (fr) |
| FR (1) | FR3134054B1 (fr) |
| WO (1) | WO2023186525A1 (fr) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014208972A1 (de) * | 2014-05-13 | 2015-11-19 | Robert Bosch Gmbh | Wischblattvorrichtung |
| EP3434537A1 (fr) * | 2017-07-26 | 2019-01-30 | Valeo Systèmes d'Essuyage | Balai d'essuie-glace de véhicule |
| DE102017215275A1 (de) * | 2017-08-31 | 2019-02-28 | Robert Bosch Gmbh | Wischblatt, insbesondere für ein Kraftfahrzeug |
| DE102020209948A1 (de) * | 2020-08-06 | 2022-02-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Wischblattvorrichtung und Wischersystem |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2975064B1 (fr) * | 2011-05-13 | 2013-05-17 | Valeo Systemes Dessuyage | Dispositif de projection de liquide pour balai d'essuyage |
| DE102018251713A1 (de) * | 2018-12-27 | 2020-07-02 | Robert Bosch Gmbh | Wischblattvorrichtung |
-
2022
- 2022-03-31 FR FR2202971A patent/FR3134054B1/fr active Active
-
2023
- 2023-03-14 WO PCT/EP2023/056470 patent/WO2023186525A1/fr not_active Ceased
- 2023-03-14 US US18/850,639 patent/US20250214538A1/en active Pending
- 2023-03-14 CN CN202380030178.8A patent/CN118946485A/zh active Pending
- 2023-03-14 EP EP23711989.6A patent/EP4499461A1/fr active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014208972A1 (de) * | 2014-05-13 | 2015-11-19 | Robert Bosch Gmbh | Wischblattvorrichtung |
| EP3434537A1 (fr) * | 2017-07-26 | 2019-01-30 | Valeo Systèmes d'Essuyage | Balai d'essuie-glace de véhicule |
| DE102017215275A1 (de) * | 2017-08-31 | 2019-02-28 | Robert Bosch Gmbh | Wischblatt, insbesondere für ein Kraftfahrzeug |
| DE102020209948A1 (de) * | 2020-08-06 | 2022-02-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Wischblattvorrichtung und Wischersystem |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3134054A1 (fr) | 2023-10-06 |
| CN118946485A (zh) | 2024-11-12 |
| EP4499461A1 (fr) | 2025-02-05 |
| US20250214538A1 (en) | 2025-07-03 |
| FR3134054B1 (fr) | 2024-07-05 |
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