WO2007000252A1 - Mecanisme d'entrainement notamment pour dispositif d'essuyage a balayage elliptique - Google Patents
Mecanisme d'entrainement notamment pour dispositif d'essuyage a balayage elliptique Download PDFInfo
- Publication number
- WO2007000252A1 WO2007000252A1 PCT/EP2006/005731 EP2006005731W WO2007000252A1 WO 2007000252 A1 WO2007000252 A1 WO 2007000252A1 EP 2006005731 W EP2006005731 W EP 2006005731W WO 2007000252 A1 WO2007000252 A1 WO 2007000252A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive mechanism
- gear
- support
- axis
- support members
- 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
- B60S1/34—Wiper arms; Mountings therefor
-
- 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
- B60S1/3409—Wiper arms; Mountings therefor with means for obtaining particular wiping patterns the wiper arms consisting of two or more articulated elements
-
- 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
-
- 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
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
- B60S1/58—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for rear windows
- B60S1/583—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for rear windows including wiping devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
- Y10T74/188—Reciprocating or oscillating to or from alternating rotary including spur gear
Definitions
- the present invention relates to a drive mechanism for transforming an axial rotational movement into an elliptical type scanning movement, a wiper device comprising such a mechanism and a motor vehicle comprising such a wiper device.
- the invention finds a particularly advantageous, but not exclusive, application in the field of wiper devices of a motor vehicle.
- a drive mechanism capable of turning an axial rotational movement into an elliptical motion.
- a drive mechanism generally consists of a two-stage gear system, which is mounted in a rotary support able to be driven in alternating rotation by means of an input shaft coupled to driving means. , the output shaft of the gear system supporting for its part the brush holder arm of the wiper device.
- the gear in question is usually composed of three gear wheels.
- a stationary gear which is not integral with the rotary support is positioned coaxially with respect to the input axis.
- a median gear is supported in axial rotation by the rotary support and which meshes with the fixed wheel.
- an output toothed wheel is also supported in axial rotation by the rotary support, meshes meanwhile the central wheel and axially supports the output axis of the system.
- This type of elliptical scanning wiping device has the disadvantage of being particularly expensive, since the drive mechanism is generally specific to each application. Indeed, it is the distance between the input axis and the output axis of the mechanism in question that sets the ratio between the small and the large diameter of the elliptical trajectory. So when the dimensions of a rear window changes from a vehicle to the other, it is essential to modify the gear system to better adapt the center distance to maximize the effective wiping surface. If the drive means, the support arm and the brush of a wiper device can a priori be standardized, this is not the case of the intermediate drive mechanism, which is ultimately not without consequences in terms of cost.
- the technical problem to be solved, by the object of the present invention is to propose a drive mechanism, in particular for an elliptical scanning wiping device, comprising a primary actuating axis intended to be driven in alternating rotation, a rotary support secured to the primary actuating axis, a fixed gear stationed coaxially with respect to the primary actuating axis, at least one median gear wheel supported in axial rotation by the rotary support, a toothed gear of output supported in axial rotation by the rotary support, and a secondary actuating axis integral with the output wheel, the gear wheels being coupled one by one in meshing and forming a two - stage gear, driving mechanism which enables to avoid the problems of the state of the art in particular by offering a substantially reduced manufacturing cost.
- the rotary support comprises two support elements which are respectively carrying the two stages of the gear, and in that the two support elements are capable of being arranged one with respect to the other following at least two distinct angular positions in which the gear wheels are meshingly coupled in an effective manner.
- the drive mechanism has a variable geometry structure which makes it possible to change the relative disposition of the two constituent elements of the rotary support, in order to vary the angular positioning of the two stages of the gear, and thus modify the center distance of the system.
- the spacing between a given drive mechanism can thus vary between two extreme values, namely a maximum value corresponding to an alignment of the axes of the three toothed wheels, and a minimum value corresponding to a bringing together of the two stages of the gearing. with positioning of the output wheel as close as possible to the fixed wheel.
- the invention as thus defined has the advantage of being able to modify the elliptical scanning kinematics of a wiper device, without having to change either the toothed wheels or the flanges of the rotary support. This therefore allows the same wiper to be mounted on different vehicles. This characteristic confers on a wiper device according to the invention, a standardization capacity likely to significantly reduce its cost.
- the invention also makes it possible to optimize the elliptical scanning kinematics. It is indeed possible to precisely adjust the center distance to the effective dimensions of the surface to be wiped, and to adopt in particular the optimal theoretical value to obtain a maximum wiping surface.
- Another feature of the invention lies in the fact that the drive mechanism is uniquely designed, mechanical strength calculations and kinematic dimensioning are realized only once, even if the mechanism in question is likely to be used in a plurality of different applications depending on the value of center distance finally retained.
- the present invention also relates to an elliptical scanning wiper device, comprising motor means capable of generating an alternating rotational movement, and a wiper arm at the end of which is mounted a wiper blade, characterized in that it further comprises a drive mechanism and in that the motor means are coupled to the primary actuating axis, and in that the brush arm is integral with the secondary actuating axis.
- the present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.
- FIG. 1 illustrates a rear window of a motor vehicle, which is equipped with an elliptical scanning wiper device incorporating a drive mechanism according to the invention.
- FIG. 2 is a side perspective view showing only the wiper device of FIG. 1.
- Figure 3 is a similar view Figure 2, but in perspective from above.
- Figure 4 shows the gearing of the drive mechanism fitted to the wiper device of Figures 1 to 3, the three gears being positioned with a maximum distance.
- Figure 5 is a view similar to Figure 4, but with the three gear wheels of the gear positioned with reduced spacing.
- Figure 6 is a view similar to Figures 4 and 5, but with the three toothed wheels positioned with a minimum distance.
- FIG. 7 shows in perspective a first example of a drive mechanism, in which the angular positioning of the support elements makes it possible to arrange the three toothed wheels in accordance with FIG. 4.
- Figure 8 is a view similar to Figure 7, but from an opposite perspective.
- Figure 9 shows the drive mechanism of Figures 7 and 8, but with the support members immobilized pivotally by locking means.
- FIG. 10 illustrates in perspective a second example of a drive mechanism, in which the angular positioning of the support elements makes it possible to arrange the three toothed wheels in accordance with FIG. 5, and in which the support elements are immobilized in pivoting by means of blocking.
- FIG. 11 is a perspective view of a third example of a drive mechanism, in which the angular positioning of the support elements makes it possible to arrange the three gears in accordance with FIG. 6, and in which the support elements are pivotally immobilized by means of blocking.
- Figure 12 is a view similar to Figure 11, but from an opposite perspective.
- FIG. 1 shows a rear window 200 of a motor vehicle, at the bottom of which is implanted an elliptical scanning wiper device 1 which incorporates a drive mechanism 30 according to the invention. It should be noted that this is an example of a truly typical application for an elliptical scanning kinematics, in that the extremely small height of the telescope 200, compared to its width, renders any kinematics of circular scan.
- the wiping surfaces 210, 220 respectively resulting from these two kinds of scanning have been materialized jointly on the bezel 200 visible in Figure 1.
- dimensional superiority of the elliptical surface 210 relative to its circular counterpart 220 are the extensions of the wiper blade 100 in the fixed stop position and fixed stop opposite, in contrast with the wiping height in the middle part.
- the wiper device 1 is firstly provided with motor means 10 which are able to generate a rotary movement of va-and- comes.
- motor means 10 comprise a geared motor 11 whose housings protection incorporate anchoring tabs 12, 13, 14 equivalent to those of a support plate.
- the wiper device 1 wiping device is also provided with an axis of one primary actuator 20 which is intended to be driven in displacement by the drive means 10, a reciprocating rotational movement.
- the axis of one primary actuator 20 is here constituted directly by the output shaft of the geared motor 11.
- the wiper device 1 further comprises a drive mechanism 30 which is capable of generate an elliptic movement in combination with the rotation of the d-axis primary actuator 20 1.
- the drive mechanism 30 firstly comprises a rotatable support 40 which is integral with the axis of one primary actuator 20.
- the drive mechanism 30 further comprises a toothed wheel fixed device 50 which is positioned coaxially with respect to the axis d 1 primary actuation 20.
- the drive mechanism 30 is then provided with a median gear 60 which is supported in axial rotation by the rotary support 40 and which cooperates by meshing with the fixed wheel 50.
- the drive mechanism 30 is provided with an output gear wheel 70 which is supported in axial rotation by the rotary support 40 and which engages by meshing with the central wheel 60.
- the assembly is furthermore arranged in such a way that the three toothed wheels 50, 60, 70 form a two-stage gear.
- the wiper device 1 further comprises a secondary actuating pin 80 which is secured to the output wheel 70, so that it can be rotated by the drive mechanism 30.
- the exemplary embodiment shown only provides a single center wheel 60. However, it would be possible to provide a plurality of median wheels 60 as a function of the difference that it is desired to obtain between the primary and secondary actuating axes 80 and 80, respectively.
- the wiper device 1 also has a brush holder arm 90 which is integral with the axis d ? secondary actuation 80 and which is here quite standard.
- the wiper device 1 is finally provided with a wiper blade 100 which is mounted at the end of the wiper arm 90 and which is equally standard.
- the rotary support 40 comprises two support elements 41, 42, one of which carries a stage of the gearing. , and the other 42 carries the remaining wheel 70 of the gear.
- the assembly is also configured so that the two support elements 41, 42 are able to be arranged with respect to one another according to at least two distinct angular positions in which the three gear wheels 50, 60, 70 are effectively meshingly coupled.
- the two support elements 41, 42 are pivotally mounted relative to each other along an axis collinear with the axis of rotation X of the median wheel 60.
- the device wiper 1 is further provided with locking means 110 which are able to immobilize the relative pivoting between the support elements 41, 42 in question.
- the locking means 110 comprise at least one blocking element 111, 112, 113 which is able, on the one hand, to fit in with at least a substantially complementary portion of at least one of the two support members 41, 42, in a direction substantially parallel to the pivot axis X of said support members 41, 42, and secondly, to be secured to at least one of two support elements 41, 42.
- each locking element 111, 112, 113 in the case where a locking element 111, 112, 113, on the one hand, cooperates by interlocking with only one of the two support elements 41, 42, and on the other hand, is fixed only one of said support members 41, 42, the interlocking and fixing must operate respectively on each of the two support elements 41, 42 considered in isolation. It is understood that the securing of each locking element 111, 112, 113 can be achieved by any known fastening technique, such as for example by screwing and / or riveting and / or clipping and / or bouterollage and / or welding and / or bonding .
- the two support elements 41, 42 are removable relative to each other, and the wiper device comprises fixing means able to secure together said support elements.
- the assembly is arranged so that the three gear wheels 50, 60, 70 are systematically engaged when the support elements 41, 42 are secured together by the fastening means.
- the two support elements 41, 42 are basically structurally independent of each other. But they nevertheless have the ability to be coupled together in at least two distinct angular positions, so that the three toothed wheels 50, 60, 70 effectively cooperate meshing.
- the fixing means can be of any known type knowing that the joining can take place in particular by screwing and / or riveting and / or clipping and / or bouterolling and / or welding and / or or collage. It should also be noted that each fixation made may be reversible or not.
- the fixing means are provided with at least one connecting element which is able to be secured to the two support members 41, 42. This characteristic means that the connection between the two support elements 41, 42 is not necessarily carried out directly, but can be performed indirectly by means of at least one intermediate piece, in this case a connecting element.
- at least one connecting element is able to fit with at least one substantially complementary portion of at least one of the two support elements 41, 42, in a direction substantially parallel to the pivot axis X of said support members 41, 42.
- This characteristic makes it possible to facilitate a good angular positioning between the two elements supports 41, 42, the interlocking embodiment consisting in a kind of prepositioning.
- the wiper device is provided with indexing means which are able to accurately position the two support members 41, 42 relative to one another, in at least two positions separate angularly in which the three toothed wheels 50, 60, 70 are effectively meshingly coupled.
- indexing means can be ensured in particular by the locking means and / or by the fastening means, depending on whether the support members 41, 42 are respectively pivotable or removable relative to each other. 'other.
- the rotatable support 40 forms a housing around the gears 50, 60, 70 of the gear. Note also that it is possible to realize a housing having both a cache function and a sealing function 1.
- FIGS. 7 to 9 more particularly illustrate the drive mechanism 30 in an arrangement making it possible to take advantage of the maximum distance between axes, the axes of the three toothed wheels 50, 60, 70 then being perfectly aligned in accordance with FIG. blocking 110, which are responsible for immobilizing the support elements 41, 42 in a substantially linear relative position, are constituted by a single blocking element 111.
- the latter is fitted around three curved portions which are respectively arranged concentrically around the axes gear wheels 50, 60, 70, and is otherwise secured only to the support member 42 by means of a rivet 114.
- the drive mechanism 30 of FIG. 10 benefits from a geometry that makes it possible to have a reduced spacing, the axes of the three toothed wheels 50, 60, 70 then being slightly offset in accordance with FIG. blocking 110 are always constituted by a single blocking element 112 which, like its counterpart in FIGS. 7 to 9, is fitted around the three curved portions previously defined, and it is also secured only to the support element 42 via a rivet 114.
- the driving mechanism 30 visible in Figures 11 and 12 is remarkable in that it has a geometry allowing it to have a minimum distance, the axes of the three toothed wheels 50, 60, 70 are then grouped in accordance with FIG. 6.
- the blocking means 110 are here in the form of a single blocking element 113 which is fitted around the three curved portions of the support elements 41, 42, and which is also secured only to the support element 42. by means of a rivet 114.
- the invention also relates to any motor vehicle equipped with at least one elliptical scanning wiping device 1 as previously described.
- the invention can be used indifferently for any glazed surface of a motor vehicle, including the front windshield.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- General Details Of Gearings (AREA)
- Drying Of Solid Materials (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008518667A JP2008544894A (ja) | 2005-06-29 | 2006-06-14 | ワイパ駆動機構 |
| US11/994,322 US20090193608A1 (en) | 2005-06-29 | 2006-06-14 | Drive mechanism especially for a window wiping device with an elliptical wiping motion |
| MX2008000125A MX2008000125A (es) | 2005-06-29 | 2006-06-14 | Mecanismo de control especialmente para un dispositivo de secado con movimiento eliptico de limpiaparabrisas. |
| EP06754367A EP1896305A1 (fr) | 2005-06-29 | 2006-06-14 | Mecanisme d'entrainement notamment pour dispositif d'essuyage a balayage elliptique |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0506636 | 2005-06-29 | ||
| FR0506636A FR2887832B1 (fr) | 2005-06-29 | 2005-06-29 | Mecanisme d'entrainement notamment pour dispositif d'essuyage a balayage elliptique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007000252A1 true WO2007000252A1 (fr) | 2007-01-04 |
Family
ID=35756142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/005731 Ceased WO2007000252A1 (fr) | 2005-06-29 | 2006-06-14 | Mecanisme d'entrainement notamment pour dispositif d'essuyage a balayage elliptique |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20090193608A1 (fr) |
| EP (1) | EP1896305A1 (fr) |
| JP (1) | JP2008544894A (fr) |
| KR (1) | KR20080031306A (fr) |
| CN (1) | CN101253081A (fr) |
| FR (1) | FR2887832B1 (fr) |
| MX (1) | MX2008000125A (fr) |
| RU (1) | RU2008103191A (fr) |
| WO (1) | WO2007000252A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104554157A (zh) * | 2015-01-15 | 2015-04-29 | 陈学琴 | 柔性壁支承雨刷线轮驱动雨刮器 |
| CN105083224A (zh) * | 2014-04-30 | 2015-11-25 | 博世汽车部件(长沙)有限公司 | 车辆刮水器变速箱及车辆刮水器驱动系统 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009054687A1 (de) * | 2009-12-15 | 2011-06-16 | Robert Bosch Gmbh | Viergelenk-Koppelgetriebe sowie Abgasturbolader |
| GB2627282B (en) * | 2023-02-17 | 2025-06-18 | Jaguar Land Rover Ltd | Method of modifying a windscreen wiper drive mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2194173A5 (fr) * | 1972-07-26 | 1974-02-22 | Daimler Benz Ag | |
| EP0323417A1 (fr) * | 1987-12-29 | 1989-07-05 | INDUSTRIE MAGNETI MARELLI S.p.A. | Dispositif d'essuie-glace à rayon variable pour véhicules à moteur |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3427933C1 (de) * | 1984-07-28 | 1986-01-02 | Daimler-Benz Ag, 7000 Stuttgart | Scheibenwischer,insbesondere Einarmscheibenwischer fuer Kraftwagen |
| US4991252A (en) * | 1985-09-09 | 1991-02-12 | General Motors Corporation | Variable length windshield wiper arm assembly |
-
2005
- 2005-06-29 FR FR0506636A patent/FR2887832B1/fr not_active Expired - Fee Related
-
2006
- 2006-06-14 US US11/994,322 patent/US20090193608A1/en not_active Abandoned
- 2006-06-14 CN CNA200680023894XA patent/CN101253081A/zh active Pending
- 2006-06-14 WO PCT/EP2006/005731 patent/WO2007000252A1/fr not_active Ceased
- 2006-06-14 MX MX2008000125A patent/MX2008000125A/es not_active Application Discontinuation
- 2006-06-14 EP EP06754367A patent/EP1896305A1/fr not_active Withdrawn
- 2006-06-14 RU RU2008103191/11A patent/RU2008103191A/ru not_active Application Discontinuation
- 2006-06-14 KR KR1020087001734A patent/KR20080031306A/ko not_active Withdrawn
- 2006-06-14 JP JP2008518667A patent/JP2008544894A/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2194173A5 (fr) * | 1972-07-26 | 1974-02-22 | Daimler Benz Ag | |
| EP0323417A1 (fr) * | 1987-12-29 | 1989-07-05 | INDUSTRIE MAGNETI MARELLI S.p.A. | Dispositif d'essuie-glace à rayon variable pour véhicules à moteur |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105083224A (zh) * | 2014-04-30 | 2015-11-25 | 博世汽车部件(长沙)有限公司 | 车辆刮水器变速箱及车辆刮水器驱动系统 |
| CN104554157A (zh) * | 2015-01-15 | 2015-04-29 | 陈学琴 | 柔性壁支承雨刷线轮驱动雨刮器 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008544894A (ja) | 2008-12-11 |
| FR2887832A1 (fr) | 2007-01-05 |
| EP1896305A1 (fr) | 2008-03-12 |
| CN101253081A (zh) | 2008-08-27 |
| MX2008000125A (es) | 2008-03-18 |
| US20090193608A1 (en) | 2009-08-06 |
| RU2008103191A (ru) | 2009-08-10 |
| KR20080031306A (ko) | 2008-04-08 |
| FR2887832B1 (fr) | 2007-09-28 |
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