EP4204262A1 - Wiper system for a glazed surface - Google Patents
Wiper system for a glazed surfaceInfo
- Publication number
- EP4204262A1 EP4204262A1 EP21752535.1A EP21752535A EP4204262A1 EP 4204262 A1 EP4204262 A1 EP 4204262A1 EP 21752535 A EP21752535 A EP 21752535A EP 4204262 A1 EP4204262 A1 EP 4204262A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- main body
- glazed surface
- wiper
- toothed belt
- wiper system
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 35
- 238000003825 pressing Methods 0.000 claims description 22
- 238000004146 energy storage Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 22
- 239000011521 glass Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 5
- 244000007853 Sarothamnus scoparius Species 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
-
- 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
- B60S1/3402—Wiper arms; Mountings therefor with means for obtaining particular wiping patterns
- B60S1/3404—Wiper arms; Mountings therefor with means for obtaining particular wiping patterns the wiper blades being moved substantially parallel with themselves
-
- 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
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
- B60S1/566—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens including wiping devices
-
- 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
- B60S1/44—Wipers or the like, e.g. scrapers the wiper blades having other than swinging movement, e.g. rotary
Definitions
- the present invention relates to the field of wiper systems intended for motor vehicles. More particularly, the present invention finds particular application in the cleaning of glazed surfaces protecting the sensors of driving assistance systems.
- Vehicles, and particularly motor vehicles include more and more automated systems, which are in particular driver assistance systems.
- driving assistance systems comprise in particular one or more module(s) for detecting an environment of the vehicle and parameters external to this vehicle as well as at least one control unit configured to interpret the information thus collected and to make appropriate decisions based on this information.
- these detection modules are most often arranged outside the vehicle, for example carried by the bodywork of this vehicle, and can for example be dirty, which can make it difficult, or even impossible, to acquire information by these detection modules. It is therefore necessary to provide a wiping system capable of effectively removing debris, dirt, organic elements and other disruptive elements.
- One solution is to set up a scanning system for the glazed surface.
- the wiping systems currently implemented conventionally comprise at least one wiper blade equipped with a wiper blade which comes into contact with the glazed surface to be cleaned, this wiper blade being driven in rotation by the intermediary of a wiper arm itself connected to a motor, for example an electric motor.
- a drawback of the wiper systems currently used lies in their size, and in particular the size generated by the presence of the wiper arm and the motor, conventionally arranged close to the glazed surface.
- Linear wiper systems are also known, in which a wiper blade is arranged at the end of a wiper arm driven in translation.
- the drive means in translation are arranged on an edge of the glazed surface and can consist of cylinders which push the arm, or of rotary motors associated with a suitable system of connecting rods which transform the rotational movement of the motor into a movement in translation of the broom carrying arm.
- the lateral space, on the periphery of the glazed surface to be cleaned is substantial, which is particularly penalizing in detection modules as mentioned previously, namely in a context where the number of these modules of detection is increasing.
- the present invention falls within this context and aims to solve at least the cited drawback by proposing a simplified wiping system, that is to say a wiping system with a reduced number of parts and whose arrangement makes it possible to reduce the total size of the wiping system.
- An object of the present invention thus relates to a system for wiping a glazed surface, comprising at least one main body, the main body comprising at least one wiper blade adapted to come into contact with the glazed surface and at least one on-board motorized moving device configured to cause linear movement of the main body along the glazed surface.
- on-board motorized moving member is understood here to mean the fact that the motorized moving member moves simultaneously with the elements that it participates in driving.
- the motorized moving member is adapted to cause the movement of the main body, and therefore of the wiper blade also carried by this main body, along the glazed surface, that is that is to say opposite this glazed surface. Since the motorized moving member is embedded on the main body, it is understood that this moving member also moves, as a whole, along the glazed surface. Since the wiping blade is adapted to be arranged in contact with the glazed surface, it is understood that the movement of the main body allows this wiping blade to sweep the glazed surface so as to clean it.
- Such an arrangement also makes it possible to limit the bulk of the wiping system, by avoiding having to provide, at the periphery of the glazed surface, a location dedicated to receiving the motorized moving member.
- linear movement is understood to mean a translational movement, that is to say a movement along a straight line.
- the main body of the wiper system, and therefore the wiper blade that it carries is adapted to be driven along this straight line in at least a first direction of movement and at least a second direction of movement. movement opposite to the first direction of movement.
- the wiping system can comprise at least one fixed guide means configured to guide the linear movement of the main body along the glazed surface.
- the moving member comprises at least one electric motor
- the main body comprises at least one electric energy storage device adapted to allow the supply of electric energy to the electric motor.
- the main body can comprise at least one connector electrically connected to the at least one electrical energy storage device, the wiper system comprising at least one charging terminal configured to be electrically connected to the at least one connector.
- electrical energy storage device means a device suitable for storing electrical energy during a recharging phase and then for restoring this electrical energy in order to cause rotation of the electric motor which allows the implementation of a cleaning phase of the glazed surface, that is to say which allows the movement of the main body and therefore the scanning of this glazed surface by the wiping blade.
- the electrical energy storage device In order to allow a new subsequent cleaning phase, the electrical energy storage device must carry out a new recharging phase during which it stores electrical energy via the charging terminal itself electrically connected to an external power source. It is understood that this is only an example of implementation of the invention which does not limit the scope thereof. For example, provision may be made for the electrical energy storage device to perform a recharging phase only after a predetermined number of cleaning phases, or even for this recharging phase to be implemented only when the vehicle equipped with the wiper system according to the invention is stationary.
- the wiping system comprises at least one member for pressing the wiper blade against the glazed surface.
- a pressing member makes it possible to improve the effectiveness of the cleaning carried out by the wiping system according to the invention by ensuring effective sweeping throughout the movement of this wiping blade along the glazed surface.
- the wiping system comprises the at least one fixed guide means of the main body, this at least one fixed guide means being formed of at least one toothed belt, the motorized moving member comprises at least the electric motor and at least one toothed wheel adapted to be driven in rotation by the electric motor, this at least one toothed wheel engaging on the at least one toothed belt.
- the at least one toothed wheel and the at least one toothed belt have dimensions such that these parts are capable of meshing in a rack-and-pinion type connection. It is thus understood that as it turns, the toothed wheel moves along the toothed belt on which it engages.
- the fixed guide means may comprise two toothed belts distributed on either side of the glazed surface and the moving member may comprise at least two toothed wheels, each toothed wheel being engaged on one of the toothed belts.
- the two toothed wheels can be connected in rotation, so that the electric motor causes the simultaneous rotation of these two toothed wheels, thus ensuring fluid movement of the main body along the glazed surface.
- the wiper blade pressing member is carried by the at least one toothed belt, the wiper blade pressing member comprising at least one elastic return device suitable for tensioning the at least one toothed belt, and the at least one toothed wheel engaged on the toothed belt is arranged between this toothed belt and the glazed surface.
- the toothed belt being stretched by the elastic return device, it exerts a bearing force against the toothed wheel interposed between this toothed belt and the glazed surface which makes it possible to bring this toothed wheel closer to the glazed surface, as well as the rest of the body.
- main which carries this cogwheel. Since the main body also carries the wiper blade, this pressing member thus makes it possible to press the latter against the glazed surface.
- the pressing member is configured to allow the main body to move closer to the glazed surface so that the wiping blade carried by this main body comes into contact with the glazed surface.
- the wiper system comprises at least one member for tensioning the at least one toothed belt arranged upstream of the toothed wheel with respect to a direction of movement of the main body along the glass surface. It is in fact understood that to allow movement of the toothed wheel along the toothed belt, this toothed belt must remain straight and taut, that is to say extend in a direction parallel to a direction of movement of the cogwheel, to play the role of a rack.
- this at least one tensioning member comprises at least one ring arranged around the at least one toothed wheel, at least one first plate and at least one second plate which extend from this at least one ring, the at least a first plate and the at least a second plate being arranged at a distance from each other and defining a zone for receiving the at least one toothed belt.
- These first and second plates extend in two directions parallel to each other, these two directions also being parallel to the direction of movement of the toothed wheel.
- the wiper system can advantageously comprise at least two tensioning members, a first tensioning member being adapted to allow the tensioning of the toothed belt upstream of the main body in the first direction of movement of this main body and a second tensioning member being adapted to allow the tensioning of the toothed belt upstream of the main body in the second direction of movement of this main body.
- the first tensioning member and the second tensioning member can be in one piece, that is to say form a single assembly which cannot be separated without causing deterioration of the first tensioning member and/ or the second tensioning member.
- the first plate of the first tensioning member and the first plate of the second tensioning member form a single plate which extends opposite the toothed wheel, as well as on either side of this gear wheel, according to the direction of movement of the main body.
- these first plates form abutment to the toothed belt and thus make it possible to ensure that this toothed belt remains in contact with the toothed wheel.
- the second plate of the first tensioning member and the second plate of the second tensioning member are for their part distributed on either side of the toothed wheel, in the direction of movement of the main body.
- these second plates of the first and second tensioning members both extend from the ring arranged around the toothed wheel but are otherwise physically distant from each other, so that the toothed wheel extends in a space formed between these two second plates, which makes it possible to ensure that the rotation of the toothed wheel is not hindered and that this toothed wheel can come into engagement against the toothed belt.
- the cooperation between the toothed wheel and the toothed belt takes place between the two second plates of the first and second tensioning members and this cooperation is ensured, at least in part, by the first plates of these first and second tensioning members which form an abutment against this toothed belt, thus preventing its disengagement from the toothed wheel.
- the fixed guide means according to the first exemplary embodiment can comprise two toothed belts, in which case the wiper system can then comprise up to four tensioning members, the first tensioning member in tension and the second tensioning member being dedicated to tensioning a first toothed belt according to the two aforementioned directions of movement and a third tensioning member and a fourth tensioning member being dedicated to tensioning of a second toothed belt upstream of the main body according, respectively, to the first direction of movement or the second direction of movement of this main body.
- the wiping system comprises the at least one fixed guide means of the main body, the wiping blade is configured to be pressed against a front face of the glazed surface, the fixed guide means comprises at least one gutter formed on the front face of the glazed surface and the moving member comprises at least the electric motor adapted to drive in rotation at least one rolling member received in the at least one gutter.
- the fixed guide means can comprise two gutters distributed on either side of the glazed surface and the moving member may comprise at least two rolling members, each rolling member being received in one of the two gutters.
- the two rolling members can be connected in rotation, so that the electric motor causes the simultaneous rotation of these two moving members, thus ensuring fluid movement of the main body along the glazed surface. It is understood that this is only an exemplary embodiment and that the moving member could comprise more than two rolling members without departing from the context of the present invention.
- the at least one running member may for example take the form of a wheel.
- this wheel can be a smooth wheel or a textured wheel.
- the wiper blade pressing member is carried by the main body and comprises at least one hook which defines at least one housing in which a roller is received, the member tackle comprising at least one elastic return member stretched between two pins carried by the hook and in contact with an axis of the roller, this axis of the roller being made movable along an oblong hole formed in an upper wall of the hook which participates in defining the housing, under a return effect of the elastic return member so that the wiper blade carried by the main body bears against the front face of the glazed surface.
- the two opposite directions of movement of the main body can for example be implemented by a change of direction of rotation of the electric motor of the on-board motorized movement device .
- the present invention also relates to a driving assistance device comprising at least one detection module and at least one wiper system as mentioned previously, the detection module comprising at least one driving assistance sensor and at least one glazed surface closing the detection module and protecting the at least one driving assistance sensor, the wiping system being configured to clean the glazed surface.
- a motor vehicle comprising at least one driving aid device as mentioned above.
- Fig. 1 illustrates, in perspective, a driving aid device according to the invention comprising at least one detection module and at least one wiper system according to a first embodiment of the invention
- Fig. 2 illustrates, in perspective, a main body of the wiping system according to the first embodiment illustrated in FIG. i;
- Fig. 3 partially illustrates, seen from above, the main body of the wiping system according to the first embodiment of the invention
- Fig. 4 illustrates, in perspective, a driving aid device according to the invention comprising at least one detection module and at least one wiper system according to a second embodiment of the invention, a main body of this system wiper comprising a housing closed by a lid;
- Fig. 5 illustrates, seen from the front, the wiping system according to the second exemplary embodiment of the invention, the housing of the main body here being devoid of its lid;
- Fig. 6 illustrates, seen from the side, the wiping system according to the second embodiment of the invention.
- variants and different embodiments of the invention may be associated with each other, in various combinations, insofar as they are not incompatible or exclusive of each other. It is possible in particular to imagine variants of the invention comprising only a selection of characteristics described below in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from to the state of the prior art.
- the denominations longitudinal, transverse, lateral, left, right, above, below refer to the orientation, in a trihedron L, V, T of a system ioo wiping according to the invention.
- a longitudinal axis L represents a longitudinal direction
- a transverse axis T represents a transverse direction
- a vertical axis V represents a vertical direction of the object considered.
- the terms “wiper blade” and “broom” will be used without distinction, as will the terms “windscreen wiper arm” and “arm”.
- Figures i to 3 illustrate a wiper system 100 according to a first embodiment of the invention and Figures 4 to 6 illustrate the wiper system 100 according to a second embodiment of the invention. We will first describe the characteristics common to these two embodiments before detailing the specific characteristics of each of them.
- the figures illustrate a wiper system 100 in an application to a driving aid device 200.
- a driving aid device 200 comprises at least one detection module 210 and at least one wiper system 100 according to the invention.
- the detection module 210 comprises at least one driving aid sensor - not visible in the figures - and at least one glazed surface 211 which closes the detection module 210 and thus protects the at least one driving aid sensor. the driving.
- the wiping system 100 is more particularly intended for cleaning the glazed surface 211 of this detection module 210. It is understood that this is only an example of embodiment and that the system of wiping could be used for cleaning other types of glass surfaces without departing from the context of the present invention.
- driving assistance sensor is understood here to mean a device configured to acquire data relating to an environment outside the vehicle for which the driving assistance device 200 according to the invention is intended and to transmit the data thus acquired to a control unit for its part configured to send, as a result of this information received, one or more instructions making it possible to initiate or assist a maneuver of the vehicle.
- This driving aid sensor can for example be a detection member by emission of waves, for example electromagnetic waves, that is to say that this detection member is configured to evaluate a distance separating it from an object arbitrary by measuring a delay between an instant t at which it sends a wave and an instant ti at which this wave is reflected.
- this detection member comprises at least one transmitter member configured to transmit at least one wave and at least one receiver member configured to receive reflected ground.
- these waves may be radioelectric waves, in which case the detection device is called RADAR by the English acronym "RADio Detection And Ranging", or else light waves, for example a laser beam, in which case the detection unit is called LIDAR from the English acronym “Light Detection And Ranging”.
- the glazed surface 211 which closes the detection module 210 makes it possible to protect this detection module, and more particularly the driving aid sensor of this detection module, in particular against possible external attacks, for example against the projection of gravel, or other objects that may be present on the road.
- the wiping system 100 according to the invention makes it possible to ensure that this glazed surface 211 is always clean, so that the acquisition of images operated by the driving aid sensor is not hindered.
- This wiping system 100 comprises at least one main body 101, movable along the glazed surface 211, and at least one fixed guide means 110.
- the main body 101 comprises at least one wiper blade and at least one member on-board motorized movement 120 configured to cause movement of the main body 101, along the at least one fixed guide means 110.
- the term “on-board motorized movement device” is understood to mean a device configured to cause the movement of an object and which moves simultaneously with this object.
- the moving member 120 causes at least its own movement as well as that of the main body 101 of which it forms part, therefore also driving the wiper blade also carried by this main body 101.
- the wiper blade 102 is arranged opposite the glazed surface 211 and the wiper system 100 advantageously comprises at least one member 130 for pressing the wiper blade against this glazed surface 211.
- the main body law moves according to a linear movement, that is to say parallel to a straight line, facing the glazed surface 211.
- the main body 101 moves parallel to the transverse axis T of the trihedron illustrated.
- the motorized moving member 120 being on board, it is understood that this moving member 120 also moves according to a linear movement, in this case a linear movement parallel to the transverse axis T, facing the surface glass 211.
- control unit which receives the images acquired by the driving assistance sensor can be configured to process the images acquired during phases of cleaning of the glass surface, that is to say during of phases during which the main body and the on-board movement device circulate in front of the glazed surface behind which this driving aid sensor is arranged, in order to erase the presence of this main body and of this device on-board motion.
- the moving member 120 comprises at least one electric motor 123 powered by at least one electrical energy storage device 128. to store electrical energy and then to restore this electrical energy in order to cause the rotation of the electric motor 123.
- the moving member 120 can advantageously comprise at least one connector 121 adapted to be electrically connected to at least one charging terminal 122 of the wiper system 100 , this charging terminal 122 itself being electrically connected to an external power source, not shown here.
- a cleaning phase is initiated, that is to say that the moving member 120 is put into operation and consequently causes the movement of the main body 101 and therefore the wiping blade 102 that it carries, along this glazed surface 211 in order to clean it.
- the wiping blade is suitable for cleaning the glazed surface 211 by sweeping it.
- the wiper blade and therefore the main body 101 which carries this wiper blade, is adapted to move along the glazed surface 211 in at least two opposite directions S1, S2 of movement.
- the change of direction of movement of the main body 101 can be implemented by a change of direction of rotation of the electric motor 123 of the setting member. in motion 120 motorized on-board.
- the moving member 120 causes the movement of the main body 101 so as to allow the connector 121 to come into engagement on the terminal charging 122 and thus ensure the recharging of the electrical energy storage device for the initiation of a future cleaning phase.
- the charging terminal 122 can be arranged at a transverse end of the detection module 210, that is to say outside a zone occupied by the glazed surface 211, so that in the charging phase , the cleaning device 200 does not interfere with the acquisition of images.
- the cleaning phase can for example be controlled by the driving assistance sensor control unit.
- the driving aid sensor detects the presence of dirt on the glazed surface 211, it can be configured to send information corresponding to the control unit, this control unit then being configured to send an instruction to the moving member 120 so that the latter can begin a cleaning phase.
- the driving aid sensor sends corresponding information to the control unit which then sends an instruction to stop the cleaning phase to the moving member 120.
- the latter can then drive the main body to a so-called "parking" position in which its connector 121 is connected to the charging terminal 122.
- the wiper system may be devoid of the charging terminal 122, the electrical energy storage device then having to be either changed or recharged independently of the vehicle.
- FIG. 1 thus illustrates, in perspective, the detection module 210 equipped with the wiping system 100 according to the first embodiment of the invention. More in particular, this figure 1 illustrates the wiping system 100 during a cleaning phase of the glazed surface 211 of this detection module 210.
- the fixed guide means 110 comprises at least one toothed belt 111.
- the fixed guide means 110 more particularly comprises two toothed belts 112, 113 distributed, vertically, on either side. other side of the glazed surface 211. There is thus an upper toothed belt 112 and a lower toothed belt 113.
- the two toothed belts 112, 113 are distributed on either side of the glazed surface 211, in a vertical direction perpendicular to the transverse direction in which the main body 101 and the moving member 120 move.
- the moving member 120 for its part comprises at least the electric motor 123, and at least one toothed wheel 124 adapted to be driven in rotation by the electric motor 123 and to come into engagement on the notches of at least l one of the toothed belts 111.
- the moving member 120 comprises two toothed wheels 124, at least one upper toothed wheel being adapted to come into engagement on the notches of the upper toothed belt 112 and at the at least one lower toothed wheel being adapted to come into engagement on the notches of the lower toothed belt 113.
- each toothed wheel 124 as well as the toothed belt 111 on which it engages have dimensions such that these parts are capable of meshing in a rack-and-pinion type connection.
- the wiping blade 102 is arranged opposite the glazed surface 211.
- the toothed wheels 124 are driven in rotation by the electric motor 123, this rotation allowing these toothed wheels 124 to move along each of the toothed belts 111 which are fixed.
- the wiper blade 102 and the moving member 120 both forming part of the main body 101 of the wiping system 100, the movement of the toothed wheels 124 of this moving member 120, along the toothed belts 111, also causes the wiper blade to move linearly along the glazed surface 211.
- the action of the pressing member 130 makes it possible to ensure contact of this blade wiper against the glazed surface 211, so that the wiper blade can wipe the glazed surface 211 and thus the get rid of any dirt that may have settled there. More particularly, the wiper blade 102 is arranged in contact with a front face 212 of this glazed surface 211.
- the pressing member 130 of the wiper blade takes the form of at least one elastic return device 131 adapted to press the toothed belt(s) 111 against the glazed surface 211.
- each toothed belt 111 is wound, at least partially, around a return element, for example a pulley here carried by a rod 215, and has at least one free end which s extends towards the inside of the vehicle equipped with the wiper system according to the invention, that is to say away from the front face 212 of the glazed surface 211.
- the elastic return device 131 is attached to this free end.
- the pressing member 130 more particularly comprises at least one first elastic return device 131 which tends to press the upper toothed belt 112 against the glazed surface 211 and at least one second elastic return device - no visible here - which tends to press the lower toothed belt 113 against this glazed surface 211.
- the first and/or the second elastic return devices 131 can take the form, respectively, of a tension spring which tends to pull the free end of the relevant toothed belt towards the inside of the vehicle.
- the wiping system 100 comprises at least one tensioning device 140 associated with each of its toothed belts 111.
- the wiping system 100 comprises at least one first tensioning member 141 adapted to ensure the tensioning of the upper toothed belt 112, according to a first direction of movement Si of the main body 101, at least one second tensioning member 142 adapted to ensure the tensioning of the upper toothed belt 112, according to a second direction of movement S2 of the main body 101, at least a third tensioning member 143 adapted to ensure the tensioning of the lower toothed belt 113, according to the first direction of movement Si of the main body 101 and at least one fourth tensioning member 144 adapted to ensure the tensioning of the lower toothed belt 113, according to the second direction of movement S2 of the main body 101.
- These tensioning members are more fully detailed below with reference to Figure 3.
- FIG. 2 illustrates, in perspective, the main body 101 of the wiper system according to the first embodiment of the invention. More particularly, this figure 2 illustrates the main body 101 seen from the glazed surface and thus makes the wiper blade 102 visible. As shown, this wiper blade 102 is carried by a base 103 itself secured to the body main wall 101.
- This base 103 comprises at least one main wall 104 and at least two wings 105 which each extend from a transverse edge 106 of the main wall 104.
- transverse edge of the main wall 104 is meant a edge which delimits the transverse dimension, along the transverse axis T of the illustrated trihedron, of this main wall 104.
- a first wing 105a extends from a first transverse edge 106a of the main wall 104 and a second wing 105b extends for its part from a second transverse edge 106b of this main wall 104.
- the main wall 104 has at least one slot 107 which extends in a vertical direction parallel, or substantially parallel to each of the transverse edges 106 of the main wall 104 and which receives the wiper blade 102.
- this slot 107 extends over an entire height of the main wall 104 of the base 103, that is to say over an entire dimension of this main wall 104 measured parallel to the vertical axis V, between two vertical edges 108 of this main wall 104.
- this slot 107 opens onto a lower vertical edge 108a and onto an upper vertical edge io8b of this main wall 104.
- the slot may only open out onto one or the other of the vertical edges of the main wall of the base without departing from the context of the present invention.
- the wiping blade 102 comprises a heel and a wiping lip 117 linked together by a hinge.
- the wiping lip 117 forms the part of this wiping blade 102 adapted to come into contact with the glazed surface to be wiped, and the heel ensures the maintenance of the wiping blade 102 on the base 103.
- Optionally means of blocking in position of the heel against an internal face of the main wall 104 of the base 103 which can be provided to avoid an undesired vertical displacement of the wiper blade 102 relative to the main body 101.
- the wiper lip 117 is for example visible in Figures 2 and 3 and the heel 118 is itself only visible in Figure 3.
- the hinge formed between the heel and the wiping lip allows this wiping lip 117 to flex and allows, therefore, to sweep the glass surface to be wiped in the two opposite directions mentioned above.
- the wings 105 of the base 103 extend on either side of a casing 125 of the electric motor 123. More particularly, these wings 105 extend on either side of a first portion 125a of the casing 125 which houses at least one stator and at least one rotor, the stator being for example formed of a metal body around which is wound at least one coil configured to, when supplied with electricity, generate a magnetic field capable of rotate the rotor.
- the rotor is for its part connected in rotation with the toothed wheels 124. In other words, the upper toothed wheel 124a and the lower toothed wheel 124b are driven in rotation simultaneously, thus ensuring a fluid and homogeneous movement of the main body 101 of the system of wiper 100.
- the casing 125 also comprises at least a second portion 125b which houses the electrical energy storage device and which also protects the connector 121 which allows the electrical connection of this storage device to the charging terminal described previously.
- the casing 125 can be in one piece, that is to say it can form a single assembly which cannot be separated without causing damage to the first portion 125a and/or the second portion 125b of this casing. 125.
- the wiping system 100 comprises four members 140 for tensioning the toothed belts.
- These tensioning devices 140 are configured to ensure a minimum level of tension of these toothed belts in order to ensure fluid movement of the main body 101 along the guide means formed by these toothed belts, in a pinion-type gear. rack. Consequently, the first tensioning member 141 and the second tensioning member 142 are arranged close to the upper toothed wheel 124a while the third tensioning member 143 and the fourth tensioning member 144 are for their part arranged close to the lower toothed wheel 124b.
- FIG. 3 is a partial view, from above, of the main body 101 of the wiper system 100 according to the first embodiment and makes particularly visible the first tensioning member 141 and the second tensioning member 142 of the upper toothed belt, not shown in Figure 3.
- the first tensioning member 141 and the second tensioning member 142 of the upper toothed belt are distributed on either side of the wheel upper toothed 124a, in the direction of movement of the main body of the wiper system.
- the first tensioning member 141 is arranged upstream of the upper toothed wheel 124a and the second tensioning member 142 is arranged downstream of this upper toothed wheel 124a while according to the second direction of movement S2 of the main body, the first tensioning member 141 is arranged downstream of the upper toothed wheel 124a and the second tensioning member 142 is arranged upstream of this upper toothed wheel 124a .
- tensioning members 141, 142 both extend from a ring 145 arranged around the upper toothed wheel 124a.
- this ring 145 can be secured to the casing 125 of the electric motor, and more particularly to a vertical end of the first portion 125a of this casing 125.
- the first tensioning member 141 and the second tensioning member 142 each comprise, at least at least one first plate 146 and at least one second plate 147 spaced apart from each other so as to form a reception zone 148 of the upper toothed belt.
- the first plate 146 and the second plate 147 of each of these tensioning members 141, 142 comprise, respectively, at least one straight portion 146a, 147a and at least one inclined portion 146b, 147b.
- each inclined portion 146b, 147b extends the straight portion 146a, 147a of the corresponding plate 146, 147.
- the straight portions 146a, 147a extend along two parallel transverse straight lines while the inclined portions 146b, 147b extend away from each other.
- the first tensioning member 141 is arranged upstream of the upper toothed wheel 124a in the first direction of movement Si of the main body 101 and the third tensioning member 143 is arranged upstream of the upper toothed wheel 124a according to the second direction of movement S2 of the main body 101.
- the first plates 146 of the first and second tensioning members 141, 142 are made in one piece, that is to say they form a single assembly which cannot be separated without lead to the deterioration of at least one of these plates 146.
- the second plates 147 of these first and second tensioning members 141, 142 are on the other hand distinct and distant from each other. More particularly, at least one space 149 is thus formed between the two second plates 147 of these tensioning members 141, 142, the upper toothed wheel 124a extending through this space 149, between these second plates 147.
- the upper toothed wheel 124a thus extends, according to this illustrated example, between the two second plates 147, and comes into engagement on the upper toothed belt opposite the space 149 formed between these two second plates 147.
- a gear zone between the upper toothed wheel 124a and the upper toothed belt is thus formed opposite the space 149 generated between the two second plates 147.
- the first plates 146 of the first and second tensioning members 141, 142 form a single set and meet at this gear zone.
- the junction between the first plates 146 of the first and second tensioning members 141, 142 thus forms an abutment zone of the upper toothed belt which participates in ensuring that the upper toothed wheel 124a can come into engagement on the toothed belt. superior.
- the third and fourth tensioning members 143, 144 of the lower toothed belt 113 are structurally identical to the first and second tensioning members 141, 142 so that the description which has just been given of them can be directly transposed to these third and fourth tensioning members, with the difference that these third and fourth tensioning members are arranged close to the lower toothed wheel and that they ensure the tensioning of the lower toothed belt.
- this figure 3 also makes visible the wiping lip 117 and the heel 118 of the fitting blade 102.
- the fixed guide means 110 takes the form of at least one gutter 114 formed in the thickness of the glazed surface 211.
- the fixed guide means 110 which is part of the wiping system 100, is formed on the glazed surface 211.
- the fixed guide means 110 more particularly takes the form of at least one upper gutter 115 and at least one lower gutter 116 distributed on either side of the glazed surface 211 to be cleaned, along the axis vertical V, that is to say along a direction perpendicular to the direction of movement of the main body along the glazed surface 211.
- the main body 101 of the wiping system 100 according to this second embodiment comprises at least one casing 126 which houses at least the electric motor and the electric energy storage device.
- the moving member 120 for its part comprises the electric motor and at least one rolling member 127, advantageously a plurality of rolling members 127, adapted to be driven in rotation by the electric motor.
- the moving member 120 comprises at least four rolling members 127 received, two by two, in the two gutters 114 of the fixed guide means 110.
- the edges which delimit each of the aforementioned gutters 114 make it possible to guide these rolling members 127 so as allow movement of the main body 101, and therefore of the wiper blade carried by this main body 101, along the glazed surface 211 to be cleaned.
- these running gears 127 can take the form of smooth or textured wheels.
- the terms “running member 127” and “wheel 127” are used without distinction.
- the member 130 for pressing the main body 101, and therefore the wiper blade that it carries, against the glazed surface 211 comprises, according to this second embodiment, at least one hook 132 equipped with at least one member elastic return 133.
- the structure and operation of this pressing member 130 is more fully detailed below, with reference to Figure 6.
- Figure 5 illustrates the main body 101 of the wiping system 100 according to the second embodiment in which a cover of the housing 126 of this main body 101 has been removed.
- This figure 5 thus makes visible the electric motor 123 as well as the electric energy storage device 128 which makes it possible to supply this electric motor 123.
- at least one electrical connection member for example a cable, allows to connect the electrical energy storage device 128 to the connector 121 previously described.
- the wheels 127 are connected in rotation two by two, thus generating two pairs of wheels, each consisting of one of the upper wheels 127a and one of the lower wheels 127b.
- the wheels 127 of the same pair are associated via an axle carrying in its center, substantially equidistant from the wheels, a toothed pinion.
- the electric motor 123 is similar to the electric motor previously described and the rotor is here connected to at least one endless screw, advantageously two endless screws arranged on either side of the rotor, which is configured to cooperate with the toothed pinion carried by the axle associated with a pair of wheels.
- the rotation of a worm generates the rotation of the axle via the toothed pinion and therefore the rotation of the wheels associated with the axle.
- the driving of the upper wheels 127a simultaneously with the driving of the lower smooth wheels 127b makes it possible to ensure a homogeneous and fluid movement of the main body 101, which contributes to ensuring the continuity of the image acquisition carried out by the driving aid sensor of the detection module equipped with the wiper system according to the invention.
- FIG. 6 illustrates a side view of the main body 101 of the wiping system 100 according to the second embodiment of the invention.
- the housing 126 comprises at least one base 126a of substantially parallelepipedic shape open on at least one face, this open face being closed by the cover 126b.
- this cover 126b is held on the base 126a thanks to at least two fixing lugs 126c distributed on either side of the connector 121.
- at least two other fixing lugs are also arranged on the other side of the base 126a.
- this pressing member 130 comprises, according to the second embodiment, at least one hook 132 which extends from the base 126a of the housing 126. More particularly, this hook 132 comprises at least one upper wall 134 which originates between the upper smooth wheels 127a, and at least one lower wall 135 interconnected by at least one curved wall 136.
- the walls 134, 135, 136 of the hook 132 define a housing 137 in which is received at least one roller 138 which bears against a rear face 213 of the glazed surface 211, that is to say a face of this glazed surface 211 turned to the opposite the front face 212 of this glazed surface 211.
- this glazed surface 211 is sandwiched between the roller 138 and the upper wheels 127a.
- An oblong hole 139 is formed on the upper wall 134 of this hook 132 and an axis
- At least two pins 231 also connect the lower wall 135 and the upper wall 134 of the hook 132, these two pins 231 extending, respectively, beyond the wall upper 134, away from the lower wall 135.
- the elastic return member 133 is arranged between the two pins
- the elastic return member 133 is thus in tension and tends to return to its initial position, thus generating a force on the two pins 231 of the hook 132 which tends to bring the body main 101, and therefore the wiper blade that it carries, from the front face 212 of the glazed surface 211. This ensures that the wiper blade is always in contact with the glazed surface 211 to be cleaned.
- the present invention proposes a system for wiping a glazed surface, for example a detection module, which ensures effective cleaning of this glazed surface, while having a reduced size compared to the wiping systems currently implemented.
- the present invention cannot however be limited to the means and configurations described and illustrated here and it also extends to any equivalent means or configuration as well as to any technically effective combination of such means.
- the shape and arrangement of the members for pressing the wiper blade against the glass surface, the fixed guide means and the moving members can be modified without harming the invention insofar as they fulfill the features described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Surface Treatment Of Glass (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2008850A FR3113635B1 (en) | 2020-08-31 | 2020-08-31 | System for wiping a glass surface |
PCT/EP2021/071411 WO2022043002A1 (en) | 2020-08-31 | 2021-07-30 | Wiper system for a glazed surface |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4204262A1 true EP4204262A1 (en) | 2023-07-05 |
Family
ID=73038251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21752535.1A Pending EP4204262A1 (en) | 2020-08-31 | 2021-07-30 | Wiper system for a glazed surface |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230382353A1 (en) |
EP (1) | EP4204262A1 (en) |
JP (1) | JP7490140B2 (en) |
CN (1) | CN116113564A (en) |
FR (1) | FR3113635B1 (en) |
WO (1) | WO2022043002A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3141662A1 (en) * | 2022-11-03 | 2024-05-10 | Valeo Systemes D'essuyage | Motorized cleaning system for an optical surface. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61282151A (en) * | 1985-06-08 | 1986-12-12 | Osami Ogawa | Linear-motion wiper |
DE10216869B4 (en) * | 2002-04-17 | 2005-06-23 | Daimlerchrysler Ag | Device and method for cleaning a window of a motor vehicle |
JP2008137503A (en) | 2006-12-01 | 2008-06-19 | Hideki Maeda | Wiper device |
CN103847700A (en) * | 2012-12-07 | 2014-06-11 | 丹阳市飞越车辆附件有限公司 | Novel windscreen wiper |
CN208498399U (en) * | 2018-06-28 | 2019-02-15 | 北京图森智途科技有限公司 | A kind of installation device of sensor |
EP3804866B1 (en) * | 2019-10-10 | 2023-11-15 | Customare Production Oy | Cleaning system, method for cleaning and use of a cleaning system |
-
2020
- 2020-08-31 FR FR2008850A patent/FR3113635B1/en active Active
-
2021
- 2021-07-30 JP JP2023513681A patent/JP7490140B2/en active Active
- 2021-07-30 EP EP21752535.1A patent/EP4204262A1/en active Pending
- 2021-07-30 WO PCT/EP2021/071411 patent/WO2022043002A1/en active Application Filing
- 2021-07-30 CN CN202180053047.2A patent/CN116113564A/en active Pending
- 2021-07-30 US US18/042,656 patent/US20230382353A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2022043002A1 (en) | 2022-03-03 |
JP2023539290A (en) | 2023-09-13 |
JP7490140B2 (en) | 2024-05-24 |
CN116113564A (en) | 2023-05-12 |
US20230382353A1 (en) | 2023-11-30 |
FR3113635B1 (en) | 2022-09-23 |
FR3113635A1 (en) | 2022-03-04 |
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