WO2020053401A1 - Essuie-glace, système d'essuie-glace pour une vitre d'un véhicule et véhicule - Google Patents

Essuie-glace, système d'essuie-glace pour une vitre d'un véhicule et véhicule Download PDF

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Publication number
WO2020053401A1
WO2020053401A1 PCT/EP2019/074515 EP2019074515W WO2020053401A1 WO 2020053401 A1 WO2020053401 A1 WO 2020053401A1 EP 2019074515 W EP2019074515 W EP 2019074515W WO 2020053401 A1 WO2020053401 A1 WO 2020053401A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiper
vehicle
arm
window
length
Prior art date
Application number
PCT/EP2019/074515
Other languages
German (de)
English (en)
Inventor
Franz Lorey
Dominik SCHÖLLMANN
Joshua KREUDER
Original Assignee
Edag Engineering 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 Edag Engineering Gmbh filed Critical Edag Engineering Gmbh
Publication of WO2020053401A1 publication Critical patent/WO2020053401A1/fr

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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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/36—Variable-length arms
    • B60S1/365—Variable-length arms the effective length being automatically varied during angular oscillation of the arm
    • 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
    • B60S1/0452—Position of the wipers relative to the vehicle
    • 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
    • B60S1/3848—Flat-type wiper blade, i.e. without harness
    • B60S1/3872—Flat-type wiper blade, i.e. without harness without connector, e.g. connection to wiper arm via squeegee or 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
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/52—Arrangement of nozzles; Liquid spreading means
    • B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms
    • B60S1/524—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms arranged in 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
    • B60S2001/3812—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
    • 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
    • B60S2001/3825—Means of supporting or holding the squeegee or blade rubber the squeegee mounted directly to or in wiper blade arm
    • 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
    • B60S2001/3837—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape with more than one wiping edge or lip

Definitions

  • the present invention relates to a wiper and a wiper system for a window of a vehicle, in particular for wiping a window of a vehicle, which can in particular be a truck (truck), passenger car (car), bus, rail vehicle, etc.
  • the invention further relates to such a vehicle with a corresponding Wi shear system
  • a wiper system is usually attached to at least the outside of the windscreen of the vehicle, which can wipe water drops and / or dirt from the window.
  • the problem with such wiper systems is that their components, depending on the design, impair the field of vision of the occupants of the vehicle and / or are difficult to access for assembly or maintenance.
  • the wiping field which is the wiping field on the windshield by the wiper system, is not always optimized.
  • a non-negligible edge area of the pane cannot be wiped with the wiper system even during operation of the wiper system.
  • the field of vision of the occupants sen by dirt present in the edge region of the window and / or water drops that cannot be removed by wiping the wiping system, for example due to rain or snow or wiping water from the wiping system.
  • a wiper system for a window of a vehicle, with which the aforementioned problems can be solved.
  • a wiper system is to be provided for a vehicle, which maximizes the field of vision of occupants of the vehicle through a window of the vehicle in all external weather conditions.
  • a wiper for a wiper system for wiping a windshield of a vehicle with a body which has at least one wiper lip along its length, the body being designed to be fastened at one end to a wiper arm of the wiper system and at the other end with the at least one egg NEN wiper lip rests freely on the windshield when the wiper is mounted on the windshield with the wiper system, and a parabolic spring that pretensions the wiper arm with the wiper attached to it with a predetermined preload, since the wiper runs along its entire length with the minimum There is at least one wiper lip on the window when the wiper with the wiper system is mounted on the window.
  • a wiper system for a windshield of a vehicle with a wiper arm for detachably receiving a wiper, in particular a wiper according to the invention, for wiping the windshield, a drive device for driving the wiper arm in a movement about an axis, the wiper being a parabola has, which prestresses the wiper arm with the wiper accommodated thereon with a predetermined pretension, since the wiper lies along the entire length with the at least one wiper lip on the window when the wiper with the wiper system is mounted on the window.
  • a vehicle with a cab, a chassis frame, and at least one wiper system according to the invention A vehicle with a cab, a chassis frame, and at least one wiper system according to the invention.
  • the wiper has a body which has at least one wiper lip along its length, the body being designed to be fastened at one end to a wiper arm of the wiper system and at the other end with the at least one wiper lip lying freely against the windshield when the wiper is mounted on the windshield with the wiper system, and a parabolic spring which prestresses the wiper arm with the wiper accommodated there with a predetermined preload so that the wiper lies against the windshield along its entire length with the at least one wiper lip when the wiper with the Wiper system is mounted on the window.
  • the design of the wiper or wiper system described ensures that the wiping field can always be optimally adapted to the windshield. As a result, the non-wipable edge area of the pane can be minimized. This also optimizes the occupants' field of vision for all vehicle operating conditions.
  • Another advantage of the wiper system described is that the construction of the wiper system offers improved accessibility for the wiper drive. This results on the one hand in assembly advantages for the wiper drive and in a lower sealing effort for the drive system against rainwater, snow and ice than in other constructions.
  • the design of the wiper and / or wiper system realizes that the wiping water can be optimally metered and positioned in the wiping field. As a result, for example, rainwater and / or splashing water can flow along the vehicle more optimally. This increases the safety for the operation of the vehicle with regard to visibility in rainy weather or snowfall.
  • the wiper system also ensures that its components impair the field of vision of the vehicle's occupants as little as possible. As a result, the field of vision of the occupants is optimized for all operating conditions of the vehicle. In addition, the wiper system is thus in a protected position during a non-operation or a rest position. This also has advantages with regard to reduced corrosion on the wiper system and, if the wiper system can be mounted on the vehicle in a protected manner, for example under a sun visor, can also be provided with sun protection for the wiper system. As a result, for example, rubber embrittlement and / or aging of the wiper can be delayed. As a result, the wiper system is more durable than an exposed construction.
  • the wiper is designed as a multi-component component with the parabolic spring, which distributes pressure on the wiper lips of the wiper evenly along the length of the wiper.
  • the parabolic spring has a width that changes over the length of the wiper and / or a cross section that changes over the length of the wiper.
  • the parabolic spring is made of metal and / or fiber-reinforced plastic.
  • the wiper has two wiper lips, between which a channel for introducing wiper fluid is arranged between the wiper lips.
  • the channel is perforated on the side which is arranged between the wiper lips and which connects the wiper lips.
  • the wiper system has a mechanism for generating a predetermined pivoting movement of the wiper about the axis.
  • the mechanism has a linear guide for guiding the wiper during a translational movement due to an extension or retraction of the telescopic wiper arm.
  • the mechanism has a guide for guiding the wiper arm along an eccentric path relative to the axis, and a coupling element for mechanically coupling the linear guide and the guide, so that the wiper is superimposed on the curved path by the drive device during the predetermined pivoting movement linear movement is driven via the disc.
  • the wiper arm is a wiper arm that is variable in length in the longitudinal direction.
  • the link guide is designed in the form of a dovetail.
  • the coupling element is designed as a gear wheel at one end and is designed as a sliding block with rollers at its other end.
  • the sliding block has concave side surfaces between the rollers.
  • the drive device is a servo motor.
  • the vehicle is a truck or a bus or an agricultural machine or a rail vehicle.
  • the at least one wiper system is arranged under a sun visor of the vehicle.
  • the at least one wiper system is arranged above a window of the vehicle or below a window of the vehicle.
  • At least one previously described wiper system can be part of a vehicle, which also has a driver's cab and a chassis frame.
  • vehicle is, for example, a truck or a passenger car or a bus or an agricultural machine or a rail vehicle.
  • FIG. 8 shows a plan view of a mechanism of the wiper system according to the first exemplary embodiment
  • FIG. 9 shows a three-dimensional view of a coupling element of the mechanism from FIG. 8;
  • FIG. 13 is a three-dimensional view of a wiper for a
  • Wiper system according to a second exemplary embodiment
  • Fig. 1 shows a side view of a vehicle 1, which is in Fig. 1 as an example, a truck, in particular a saddle tractor.
  • the vehicle 1 can alternatively be another vehicle, for example a passenger car (passenger car) or a bus, in particular a coach and / or double-decker bus for the transport of people.
  • the vehicle 1 is an agricultural machine, in particular a tractor, a combine harvester, etc., or a rail vehicle.
  • the driver, one or more passengers and other passengers are each occupants of vehicle 1.
  • the vehicle can be any vehicle on which the features described below can be used.
  • the vehicle 1 is in Fig. 1 on a base 5.
  • the vehicle 1 has a vehicle base frame or chassis or chassis frame 10, on which in the example of FIG. 1, front wheels 11 and rear wheels 12 are rotatably mounted. At its front end is the chassis frame 10 with a bumper 13 completed.
  • the structure can be a container, a box for a refrigerated truck, etc.
  • the vehicle 1 is not a satellite tractor, the vehicle 1 can have a platform, a platform with tarpaulin, etc. as a body.
  • the vehicle 1 has a driver's cab or a cab 20, which is shown in FIG. 1 in a special embodiment as an example.
  • a driver's cab or a cab 20 which is shown in FIG. 1 in a special embodiment as an example.
  • the interior 21 is accessible via a vehicle door 22.
  • the driver's cab 20 has an A-pillar 23 on each of the two sides of the vehicle 1.
  • the driver's cab 20 is closed to the outside by a pane 24 in its upper and front area.
  • the vehicle 1 has a very schematically represented floor 25.
  • a sun visor 26 is provided at the top of the vehicle 1.
  • a wiper system 30 is mounted, which is shown only very schematically in Fig. 1, but is illustrated in more detail in the usual figures.
  • the wiper system 30 is arranged in the example of FIG. 1 over the disc 24.
  • the wiper system 30 can be arranged at least partially under the sun visor 26. As a result, the Wi shear system 30 is very effectively covered against the environment and thus protected.
  • Fig. 2 to Fig. 7 each show a partial view of the vehicle 1 of Fig. 1.
  • the disk 24 is shown ge, on which the wiper system 30 is operated.
  • the disk 24 is the windshield or windshield of the vehicle 1 of FIG. 1.
  • FIG. 2 7 shows a different operating status of the wiper system 30.
  • the wiper system 30 may instead be mounted, if desired, for wiping a window 24 of the vehicle 1 other than the front window.
  • the pane 24 is installed in a frame or pane frame 241 of the vehicle 1 in such a way that a field of vision 242 is present, through which an occupant of the vehicle 1 can see from the driver's house 20 through the pane 24 to the outside of the cab 20.
  • the wiper system 30 is designed and arranged such that it can wipe a wiping field 243 on the window 24, which is illustrated in FIGS. 5 to 7.
  • the wiping field 243 is for demonstration purposes only on the left half of the pane 24 Darge. However, the wiping area 243 is actually present on the right half of the pane 24, mirrored at the center of the pane 24.
  • the wiper 31 is in a position 42, which is shown in FIGS. 5 to 7.
  • the wiper system 30 has a wiper 31, a wiper arm 32, a drive device 33, a mechanism 34 and an aperture 35.
  • the wiper 31 is connected to the drive device 33 by means of the wiper arm 32 in such a way that the wiper 31 about the axis 331 of the Antriebseinrich device 32 is rotatable.
  • the wiper 31 is pivoted about the axis 331 in a certain pivoting movement.
  • the axis 331 of the drive device 32 is arranged perpendicularly to the plane of the drawing in FIGS. 2 to 7. If necessary, another axis can be selected as the fulcrum, but the arrangement shown offers the most compact design.
  • the Mechanism 34 has a linear guide 341, a link guide 342, and a coupling element 343.
  • the coupling element 343 engages both in the linear guide 341 and in the link guide 342.
  • the coupling element 343 is also coupled to the wiper arm 32.
  • the link guide 342 has a curved path.
  • the link guide 342 need not be designed as a mechanical link track. Instead, the link guide 342 may at least partially be impressed on the wiper arm 31 and thus on the wiper 31 as a predetermined movement. This can be done electrically, pneumatically, etc.
  • the coupling element 343 can be omitted or is adapted to the design of the link guide 342.
  • the wiper arm 32 can be attached to the drive device 33 by a fixed or detachable screw connection and / or by a click and / or clip and / or snap connection.
  • the wiper system 30 moves or swivels the wiper 31 eccentrically during operation in order to maximize the wiping field 243 on the window 24.
  • the wiper 31 with the wiper arm 32 is moved from a rest position 40 under the sun visor 26, which is shown in FIG. 2, to a first end position 41, in which the free end of the wiper 31 on the edge of the pane 24 or rests against the window frame 241.
  • the wiper 31 is then leads up to its second end position 4N, which is illustrated in FIG. 7 and is mirrored to the first end position 41 at the edge of the pane 24 or at the pane ben frame 241.
  • the wiper 31 with the wiper arm 32 returns to the rest position 40 under the sun visor 26.
  • the rest position 40 need not be arranged on the right side of the disk 24. Instead, the rest position 40 can be arranged on the left side of the disc 24, so that the movement sequence described above runs in the opposite direction over the disc 24 as shown in FIGS. 2 to 7 and described above.
  • the wiper system 30 thus makes it possible for the wiper 31 not to be moved back into the completely constant rest position or rest position 40 during the operation of the wiper system 30. Instead, the wiper 31 is moved in an oscillating manner in the work area and only moves outside the field of view 242 when it is switched off to the rest position or rest position 40. This enables a time-optimized availability of the wiper system 30 and a time-optimized operation of the wiper
  • the wiper system 30 is connected to the driver's cab 20 via the window 24.
  • the wiper system 30 it is alternatively possible to connect the wiper system 30 at the bottom of the pane 24. This is useful if there is not enough space at the top of the vehicle 1 for the wiper system 30 without restricting the field of vision 242.
  • the wiper system 30 is preferably arranged on or near the disk 24 such that the aerodynamic influence of the wiper system 30 is as small as possible.
  • the wiper system 30 has only one wiper arm 32, the drive device 33 with the mechanism 34, which is designed in particular as a servomotor, and the diaphragm 35.
  • the drive device 33 or the servomotor can be arranged directly on the wiper arm 32.
  • the drive device 33 can drive the wiper arm 32 and thus the wiper 31 in such a way that the wiper 31 stops at any position on the disk 24 after movement from the first end position 41, for example at one of the positions 41 to 47 or any other Position on the disc 24.
  • Fig. 8 shows the mechanism 34 in more detail, which is coupled to the Wi shear arm 32.
  • the wiper arm 32 can be varied in length in the longitudinal direction, in particular telescopically.
  • the wiper arm 32 has a carrier 321 on which a carriage 322 can travel back and forth.
  • the wiper 31 can be fastened at one end to the end of the carriage 322, which projects from the wiper arm 32 in the direction of the wiper 31.
  • the coupling element 343 of the mechanism 34 is embodied at one end as a gear 343A, as also illustrated in greater detail in FIG. 9.
  • the gear 343A is so arranged on the mechanism 34 of FIG. 8 that it engages on one side in a corresponding toothing 3411 of the linear guide 341.
  • the gear 343A engages in a corresponding toothing 3221 of the carriage 322.
  • the coupling element 343 and linear guide 341 is positively coupled to one another.
  • the movement of coupling element 343 and carriage 322 is rela tively coupled to each other.
  • the coupling element 343 engages with its other end in the link guide 342.
  • the coupling element 343 is designed with its other end as a sliding block 343B, each with a roller 3431, 3432, 3433 at its corners, as shown in FIG. 9 more visible.
  • a sliding block 343B has concave wall surfaces, so that the sliding block 343B can move, in particular slide, without collisions in the link guide 342.
  • driving the axis 331 of Antriebseinrich device 33 causes both a rotational movement or pivoting movement of the wiper arm 32 and the wiper 31 about the drive axis or axis 331 and a movement of the coupling element 343 along the link guide 342 and the linear guide 341, thereby a Extend or retract in the longitudinal direction of the Wi arm 32 and thus the wiper 31 is effected.
  • the length of the wiper arm 32 is varied.
  • the type of movement is pre-determined by the shape of the link guide 342.
  • the link guide 342 is designed as an eccentric track, in particular dovetail-shaped. However, it is of course possible to design the link guide 342 in a different shape. As a result, the movement of the wiper 31 over the window 24 can be adapted to the wiping area 243 desired for the window 24 as required.
  • the wiper 31 executes a predetermined pivoting movement of a linear motion overlaid with the curved path via the disk 24.
  • the wiper 31 is coupled to the very flat wiper arm 32 which sits on the window 24.
  • the wiper 31 is designed as a flat wiper element, as shown in FIGS. 10 to 12.
  • the Wi shear element can also be referred to as a Fiat blade and is described in more detail below.
  • FIGS. 10 and 11 show the wiper 31 from above or from the side which faces away from the window 24 when the wiper 31 is in operation. 11 shows only a partial view of the wiper 31.
  • FIG. 12 shows the wiper 31 from below or from the side which is facing the window 24 during operation of the wiper 31.
  • the wiper 31 has a body 310, on which two wiper lips 311, 312 are formed, and in which a channel 313 is provided.
  • the body 310 also has fastening devices 314, which in the example of FIG. 9 are designed as through holes.
  • the fastening devices 314 are provided for fastening the wiper 31 with a suitable fastening element on the wiper arm 32, in particular the carriage 322.
  • the body 310 has a recess 315 in which a parabolic spring 316 is received.
  • the parabolic spring 316 is designed such that the body 310 is biased along its length.
  • the wiper 31 is attached to the wiper arm 32 only at one end, namely at the end with the fastening devices 314, which is closer to the pivot point or pivot point about the axis of the drive device 33 than the free end of the wiper 31.
  • the second The end of the wiper 31 lies freely against the pane 24 when it is mounted on the pane 24.
  • the parabolic spring 316 is designed in such a way that the wiper 31, even at a speed of the vehicle of 100 km / h or more along its entire length with the tips 311A, 312A of the wiper lips 311, 312, bears sufficiently against the disk 24 that a flawless wiping field 243 is achieved.
  • the spring constant of the parabolic spring 316 is chosen over its length in such a way that the wiper 31 is biased more at its free end than at its other end.
  • the wiper lips 311, 312 together form a double wiper lip pe.
  • the wiper lips 311, 312 have an arrow-shaped cross section.
  • the wiper lip 311 has a tip 311A, a first oblique side 311B and a second oblique side 311C.
  • the wiper lip 312 has a tip 312A, a first oblique side 312B and a second oblique side 312C.
  • the wiper lips 311, 312 tilt from the position shown in FIG. 11 such that the tips 311A, 312A and at least part of the first inclined sides 311B, 312B lies against the disc. If the wiper 31 is moved to the right in FIG. 11 over the disk 24, the wiper lips 311, 312 tilt from the position shown in FIG. 11 such that the tips 311A, 312A and at least part of the second oblique sides
  • a channel 313 is at least provided in the body 310 min, through which a wiping fluid, for example water and / or a cleaning agent, can be passed.
  • a wiping fluid for example water and / or a cleaning agent
  • the channel 313 in particular has an oval or rectangular cross section such that the side of the wiper 31 facing the window 24 is longer than the side of the wiper 31 approximately perpendicular to the window 24.
  • the wiper 31 can lie flat on the pane 24 than in the case of a round or square channel. This principle applies equally if more than one channel 313 is provided.
  • the channel 313 is perforated on the side which is arranged between the wiper lips 311, 312 and which is the wiper lips
  • Wiper lips 311, 312 emerge from at least one opening or nozzle from the channel 313, as best shown in FIG. 10 represents.
  • the wiping fluid preferably comes from a plurality of nozzles arranged adjacent to the wiping lips 311, 312 in order to distribute the wiping fluid as evenly as possible on the disk 24 in a fluid film.
  • the nozzles are arranged as desired between the wiper lips 311, 312. It is preferably taken into account in the arrangement of the nozzles that, during operation of the wiper system 30, the wiping fluid due to the centrifugal force, which acts by pivoting the wiper 31 over the disk 24, from the attachment point of the wiper arm 31 on the disk 24 to the free end of the wiper 31 is pressed.
  • a wiping cycle includes moving the wiper 31 from position 41 to 4N and back. So with preferably the number of nozzles decreases in the direction of the free end of the wiper 31. Alternatively or additionally, the distance between the nozzles increases in the direction of the free end of the wiper 31.
  • the nozzles are arranged between the wiper lips 311, 312 in at least one row. More than one row of nozzles can be arranged such that the nozzles are arranged in a plane both horizontally and vertically in straight rows.
  • the more than one row of nozzles may be arranged such that a horizontal row of nozzles is vertically offset from the next horizontal row of nozzles.
  • the nozzles can have different distances from one another in the at least one row.
  • the wiper 31 is a single component manufactured in a multi-component construction 13.
  • the pa rabelfeder 316 is integrated in the multi-component design in the wiper 31.
  • the Wi scher 31 has a comparatively very low overall height. This primarily results in aerodynamic advantages.
  • a reinforcing structure glass fiber reinforced plastic, (GRP), carbon fiber
  • GRP glass fiber reinforced plastic
  • the multi-component design enables wiper lips 311, 312 that are soft enough to fit perfectly on the pane 24, but are hard enough at the edges to be able to remove stubborn dirt.
  • insects can be easily wiped off the disk 24.
  • snow can easily be wiped off the window 24.
  • the wiper system 30 is very sensitive to frost since it has few mechanical components.
  • the parabolic spring 316 is inserted into the recess 315 of the wiper 31 in such a way that with the wiper 31 mounted on the wiper system 30, a sufficient pressure P can be exerted on the disc 24 at all points of the wiper lips 311, 312. In particular, the tips 311A, 312B of the wiper lips 311, 312 rest against the window 24 along the length of the wiper 31.
  • the parabolic spring 316 acts together with the wiper arm 32 with such a high pressure P on the wiper 31 that each of the wiper lips 311, 312 can slide over the window 24.
  • the wiper lips 311, 312 are tilted against the wiping direction to the rear, as described above.
  • each of the wiper lips 311, 312 When changing the direction of the wiper 31, as described above, each of the wiper lips 311, 312 must tip over, however, so that the respective wiper lip 311, 312 can cleanly slide over the pane 24. If the pressure P is too high, the respective wiping tip lip 311, 312 does not turn around when changing direction, which leads to both an undesirable noise and an unclean wiping pattern.
  • This pressure P exerted by the parabolic spring 316 depends on the geometry and material of the wiper lips 311, 312.
  • the pressure P in passenger cars (cars) when the passenger car is at a standstill in particular in the range from 7N to 18N.
  • the wiper system 30 is designed and constructed such that the wiper 31 exerts this pressure P on the disc 24 via the parabolic spring 316.
  • the parabolic spring 316 is of variable profile width and / or profile thickness equipped to allow a more even force distribution or distribution of the pressure P along the length of the wiper 31.
  • Parabolic spring 316 is widest at the end of wiper 21 where wiper 31 is attached to wiper arm 32.
  • the parabolic spring 316 becomes narrower towards the other end of the wiper 31, as illustrated in FIGS. 10 and 11.
  • the parabolic spring 316 thus has a trapezoidal shape with respect to its width over its length.
  • parabolic spring 316 with respect to its thickness or the cross section of the spring or parabolic spring 316.
  • the spring force of the spring 316 is smaller than with a larger cross section of the spring 316 parabolic change in the cross section of the spring 316 a uniform force curve Achievable over the entire length of the wiper 31.
  • the parabolic spring 316 has a trapezoidal shape with respect to its cross section over its length. The length and cross-section as well as their trapezoidal shape can be selected depending on the existing circumstances.
  • the parabolic spring 316 is not made of metal but at least partially of carbon fiber composite or other materials, the weight of the combination of wiper 31 and wiper arm 32 can be reduced. In this case, it is conceivable to partially manufacture the mechanism 34 from plastic, since lower forces occur. As a result, the mechanism 34 can be manufactured significantly more economically. A lighter wiper arm 32 therefore has advantages with respect to the mechanism 34.
  • the wiper system 30 is thus designed in such a way that it is possible to keep the field of vision clear in accordance with applicable standards for vehicles 1, in particular the ECE-125-R.
  • the wiper system 30 ensures functionality and cleaning ability up to a speed of 100 km / h, especially in Central European weather.
  • the cleaning system can remove dirt, in particular insects, etc., from the pane 24.
  • FIG. 13 shows a wiper 31A which can be used in a wiper system 30A according to a second exemplary embodiment instead of a wiper 31 according to the first exemplary embodiment.
  • a structure with the function of the parabolic spring 316 of the previous exemplary embodiment is integrated in the wiper 31A.
  • the wiper 31A is shaped accordingly to enable a more even distribution of force along the length of the wiper 31.
  • the parabolic spring 316 is cast into the wiper 31.
  • the wiper system 30 or the wiper 31A according to the present exemplary embodiment is constructed in the same way as described above for the wiper system 30 according to the first exemplary embodiment.
  • the wiper 31B which can be used in a wiper system 30B according to a second exemplary embodiment instead of a wiper 31, 31A according to the preceding exemplary embodiments.
  • the wiper 31B is coupled directly to a coupling unit 36 with the drive device 33.
  • the wiper 31B can be configured, for example, as one of the wipers 31, 31A.
  • the wiper 31B is optionally equipped with more than two wiper lips 311, 312, even if the wiper lips 311, 312 are not shown in FIG. 14.
  • the wiper system 30B according to the present exemplary embodiment is constructed in the same manner as previously described for the wiper system 30 according to the first exemplary embodiment or the wiper system 30A according to the second exemplary embodiment.
  • the wiper systems 30, 30A, 30B described above thus have, in all configurations, a self-supporting double wiper lip or wiper lip 311, 312 including reinforcing structure and attachment to only one end face or edge side of the wiper 31, 31A, 31B.
  • a central contact point of a wiper 31, 31A, 31B, as is used in the prior art when using a linkage, is not required.
  • a variable projection of the wiper length for optimizing the wiping area 243 of the vehicle window 24 is possible.
  • the wiper 31, 31A may have seen a changing cross-section and / or a change in the mass and / or volume of the wiper 31, 31A along the length of the wiper 31, 31A - from the point of attachment to the wiper arm 32 (large cross-sectional area and / or mass) to the outside (small Cross-sectional area and / or mass).
  • This is particularly a tapered, z. B. smaller cross-sectional area to the outermost point of the wiper 31, 31A possible.
  • the contact pressure P can be adjusted to the same value along the length of the wiper 31A on the disk 24.
  • Wiper 31, 31A provided a change in material properties along the length of wiper 31A.
  • Wiper 31, 31A can be unloaded. In this way too, the contact pressure P can be adjusted to the same value along the length of the wiper 31A on the disk 24.
  • wiper 31, 31A instead of a double wiper lip or wiper lip 311, 312, it is alternatively possible to equip the wiper 31, 31A with a single wiper lip only. Here, too, it is possible, if desired, to provide at least one wash water nozzle on the wiper 31, 31A for targeted application of the windshield wiper water close to the wiper lip.
  • the wiper arm 32 is, for example, completely or at least partially made of metal, in particular steel, titanium, etc. At least partially, the wiper 31 can be made of plastic, in particular a fiber-reinforced plastic
  • the wiper 31, 31A and / or the wiper arm 32 are advantageous to use with aerodynamic properties of the surface / to design the outer contour of the outer surface. As a result, the wiping properties of the wiping system 30 can be further improved.
  • the link guide 342 need not be designed as a mechanical link track.
  • a variable wiper length movement by electrical means can be achieved in order to achieve an optimal need-based wiping field 243 and thus the field of vision 242 and / or pneumatic design are impressed.
  • the wiper length movement is preferably carried out smoothly.
  • the lengthwise variable wiper arm 32 can be configured as desired, for example as at least one of the following designs or combinations thereof, namely as a spring-mass damper system, as a system with a pneumatic spring, as electro-mechanical system with a threaded rod, which can be driven in a rotary motion by an electric motor, in particular Servomo tor, as electro
  • Mechanical system with a rack and / or chain which can be driven by an electric motor, in particular a servo motor, in a linear motion, as a toothed slot.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

La présente invention concerne un essuie-glace pour un système d'essuie-glace destiné à essuyer une vitre d'un véhicule. L'essuie-glace est pourvu d'un corps, qui présente au moins une lèvre d'essuyage le long de sa longueur, le corps pouvant être fixé par une extrémité à un bras d'essuyage du système d'essuie-glace et s'appliquant librement par son autre extrémité avec la ou les lèvres d'essuyage contre la vitre, lorsque l'essuie-glace est monté avec le système d'essuie-glace sur la vitre, et d'un ressort parabolique, lequel précontraint le bras d'essuyage sur lequel est logé l'essuie-glace avec une précontrainte prédéfinie, afin que l'essuie-glace s'applique le long de toute sa longueur avec la ou les lèvres d'essuyage contre la vitre, lorsque l'essuie-glace est monté avec le système d'essuie-glace sur la vitre. La présente invention concerne en outre un système d'essuie-glace pour une vitre d'un véhicule ainsi qu'un véhicule pourvu d'un système d'essuyage correspondant.
PCT/EP2019/074515 2018-09-14 2019-09-13 Essuie-glace, système d'essuie-glace pour une vitre d'un véhicule et véhicule WO2020053401A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018105291.8 2018-09-14
DE202018105291.8U DE202018105291U1 (de) 2018-09-14 2018-09-14 Wischer und Wischersystem für eine Scheibe eines Fahrzeugs

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WO2020053401A1 true WO2020053401A1 (fr) 2020-03-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112172720A (zh) * 2020-09-04 2021-01-05 宁波吉利汽车研究开发有限公司 汽车前防撞梁系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266155B (de) * 1958-09-11 1968-04-11 John Will Anderson Windschutzscheibenwischer, insbesondere fuer Kraftfahrzeuge
US3480986A (en) * 1966-09-16 1969-12-02 Walter D Appel Integral windshield wiper and arm construction
FR2515121A1 (fr) * 1981-10-28 1983-04-29 Bosch Gmbh Robert Essuie-glace pour vehicules automobiles
DE29903123U1 (de) * 1999-02-20 1999-07-15 Baehr Albert Scheibenwischer für Fahrzeuge aller Art
WO2002004267A2 (fr) * 2000-07-06 2002-01-17 Trico Products Corporation Assemblage d'essuyeur a lame de faisceau monopiece de forme arquee en vue de dessus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266155B (de) * 1958-09-11 1968-04-11 John Will Anderson Windschutzscheibenwischer, insbesondere fuer Kraftfahrzeuge
US3480986A (en) * 1966-09-16 1969-12-02 Walter D Appel Integral windshield wiper and arm construction
FR2515121A1 (fr) * 1981-10-28 1983-04-29 Bosch Gmbh Robert Essuie-glace pour vehicules automobiles
DE29903123U1 (de) * 1999-02-20 1999-07-15 Baehr Albert Scheibenwischer für Fahrzeuge aller Art
WO2002004267A2 (fr) * 2000-07-06 2002-01-17 Trico Products Corporation Assemblage d'essuyeur a lame de faisceau monopiece de forme arquee en vue de dessus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112172720A (zh) * 2020-09-04 2021-01-05 宁波吉利汽车研究开发有限公司 汽车前防撞梁系统

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