CN102159429B - Windscreen wiper drive - Google Patents
Windscreen wiper drive Download PDFInfo
- Publication number
- CN102159429B CN102159429B CN2009801368516A CN200980136851A CN102159429B CN 102159429 B CN102159429 B CN 102159429B CN 2009801368516 A CN2009801368516 A CN 2009801368516A CN 200980136851 A CN200980136851 A CN 200980136851A CN 102159429 B CN102159429 B CN 102159429B
- Authority
- CN
- China
- Prior art keywords
- output shaft
- windscreen wiper
- flower wheel
- wiper drive
- radially
- 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.)
- Expired - Fee Related
Links
- 230000005291 magnetic effect Effects 0.000 claims description 20
- 239000002184 metal Substances 0.000 description 2
- 241000208969 Securidaca diversifolia Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
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
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/16—Means for transmitting drive
- B60S1/166—Means for transmitting drive characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a windscreen wiper drive (1), preferably a direct windscreen wiper drive, in particular for a motor vehicle, comprising a drivewheel-driveshaft combination (9), with a drivewheel (3) and a driveshaft (6) rotationally fixed to a hub section (8) of the drivewheel (3), at the free end (7) of which a wiper arm may be fixed. According to the invention, the drivewheel (3) is radially mounted at a part of the hub section (8) tapered in the direction of the free end (7).
Description
Technical field
The present invention relates to a kind of windscreen wiper drive.
background technology
By EP 0 918 671 B1, a kind of windscreen wiper drive that is configured to the rain brush direct drive unit is disclosed.The rain brush direct drive unit is the windscreen wiper drive that there is no bar, wherein by tooth section actuator drives output shaft (rain brush axle).Described windscreen wiper drive comprises electrical motor, and drive screw torsionally is positioned on the engine shaft of this electrical motor, can drive the flower wheel that is configured to worm gear with described drive screw.Output shaft torsionally is connected with flower wheel, fixing Wiper arm on the free end of this output shaft.The structural unit formed by flower wheel and output shaft radially only directly is bearing in the inner radial of housing dome by output shaft.Especially when for the magnetic field sensor combined action with the magnetics of recognizing site and output shaft axially-spaced while being arranged in the free end back to output shaft distolateral upper of flower wheel, described flower wheel-output shaft combination has significant axial elongation.Because provided structure space is provided in automobile, so make great efforts the axial elongation of required structure space, especially flower wheel-output shaft combination is minimized.
Summary of the invention
Task of the present invention is to propose a kind of windscreen wiper drive, and the flower wheel of this windscreen wiper drive-output shaft combination has as far as possible little axial elongation.
This task is used by windscreen wiper drive of the present invention and is resolved.There is flower wheel-output shaft combination by windscreen wiper drive of the present invention, the combination of this flower wheel-output shaft comprises flower wheel and torsionally is fixed on the output shaft in the wheel hub section of flower wheel, fixing Wiper arm on the free end of this output shaft, wherein, described flower wheel radially is bearing in along on the wheel hub section of free end direction elongation, it is characterized in that, described wheel hub section radially is bearing in axle sleeve, and this axle sleeve forms or directly formed by housing by being supported on housing and/or section that be fixed on the hollow cylinder of the member on housing.
The present invention is based on following design, i.e. flower wheel-output shaft combination (structural unit) is unlike only radially supported by output shaft in prior art, but extraly or alternative output shaft radial support realized the flower wheel radial support.Need for this reason described driven gear, just be surround output shaft in centre the wheel hub section vertically towards the direction elongation of the free end of output shaft, thereby described flower wheel can radially be supported by the wheel hub section (supporting).At this, the wheel hub section of the elongation realized thus is for the lateral support output shaft and for the danger of the lateral tilt by flower wheel-output shaft combination, minimize thus, makes following position of output axle can move along the distolateral direction of the free end in the face of output shaft of flower wheel with respect to prior art.Thus can be by flower wheel, especially the axial outshot of flower wheel is shortened on the side of the free end back to output shaft, especially can realize in combination with the output shaft compared to the prior art shortened the axial elongation of the minimum of output shaft-flower wheel combination thus, and realize thus whole windscreen wiper drive.When the axial elongation of wheel hub section is selected enough greatly, can consider that described flower wheel-output shaft combination radially only is bearing on flower wheel.Yet, except radially supporting flower wheel, the embodiment that radially supports output shaft in the zone also preferably separated vertically in the wheel hub section with flower wheel is preferred.
The embodiment of windscreen wiper drive is particularly preferred, wherein flower wheel-output shaft be combined in flower wheel and/or on flower wheel back to have on the end of the free end of output shaft magnetics for the magnetic field sensor combined action preferably with recognizing site.At this, preferably relate to for utilizing the sensor of anisotropic magneto-resistance.Direction by the free end along output shaft extend the wheel hub section with determine rain brush and output shaft be contained in end in flower wheel along the distolateral direction of the free end in the face of output shaft with the related skew of rain brush, also can be vertically near the stagger magnetics of described especially plate-like of the distolateral free end ground in the face of the rain brush axle of flower wheel, axial elongation of the minimum that this combines output shaft-flower wheel plays positive role.Described magnetics is particularly preferred with the embodiment that the longitudinal extension of output shaft is evenly arranged vertically.
A kind of embodiment of windscreen wiper drive is particularly preferred, and wherein said flower wheel has the gear segment of flattened cylindrical shape basically, and this gear segment has the tooth quality award from the ministry and selects screw rod tooth section on its cover, for the drive screw combined action.Preferably the wheel hub section of hollow cylinder is along the axially outstanding gear segment that surpasses described flattened cylindrical shape of the free end towards output shaft.Particularly preferably be now, held by gear segment fully with the coefficient magnetics of magnetic field sensor, and not outstanding over flower wheel on a side of the free end back to output shaft.Can certainly realize such embodiment, wherein magnetics gives prominence to along the direction (preferably only slightly) of the free end away from output shaft the gear segment that surpasses described flattened cylindrical shape.
In improvement project of the present invention, advantageously propose, by means of the radially supported wheel hub section of sliding bearing structure supporting, thereby the radial extent in the radial bearing zone minimizes by windscreen wiper drive.At this, radially supported bearing section particularly preferably with the axle sleeve combined action, this axle sleeve is preferably or directly by the housing of windscreen wiper drive, or the member that is supported on housing and/or is fixed on housing in being arranged in housing forms.At this, particularly preferably by housing in other words the section of the hollow cylinder of member form described axle sleeve.Particularly advantageously, described member is rush curved who is made of metal, this rushes curved except the axle sleeve section of the preferred hollow cylinder of its section of wheel hub for the radial support flower wheel, the section that also comprises the preferred annular of radially extending of preferred flat, this section is as flower wheel axial starting in zone to the outside at wheel hub Duan Jing.
Such as explained, can realize that output shaft-flower wheel combines the embodiment on the wheel hub section that radially only is bearing in elongation.Yet, in order to prevent reliably tumbling of output shaft-flower wheel combination at run duration, the embodiment that the plain bearing of the preferred output shaft of radial bearing is set vertically separatedly with radially supported wheel hub section is preferred.
In order to ensure moment of torsion, from flower wheel, be delivered to output shaft reliably, this output shaft is preferred with the embodiment that flower wheel form fit ground is connected.For this reason, described output shaft preferably has the preferred annular knurl of surface texture in the form fit section, with this surface texture formed with flower wheel preferably with the form fit of hub area.
In improvement project of the present invention, advantageously propose, formation extends in the zone of output shaft vertically with the form fit section of the form fit of flower wheel, this output shaft radially stretches into the inside of the wheel hub section that radially is bearing in outside always, or described form fit section is contained in the wheel hub section of elongation fully.
In order to ensure the lateral support of the best of output shaft, the embodiment that radially in inside, directly supports output shaft on the axially extended largest portion of described wheel hub Duan Qi is preferred.
The accompanying drawing explanation
Other advantage of the present invention, feature and details obtain from following description of preferred embodiments and with reference to the accompanying drawings.Accompanying drawing illustrates:
Fig. 1 is the first embodiment of the windscreen wiper drive shown in only local, wherein in the surpassing on the section of gear segment and arrange magnetics vertically of flower wheel, and
Fig. 2 is the alternative embodiment of windscreen wiper drive, and wherein magnetics is contained in the gear segment of flower wheel fully and has shortened output shaft with respect to the embodiment by Fig. 1.
The specific embodiment
Identical element and element with identical function mean with identical Reference numeral in the accompanying drawings.
Show partly the windscreen wiper drive that is configured to the rain brush direct drive unit 1 for automobile in Fig. 1.This windscreen wiper drive 1 comprises the electrical motor do not illustrated, and this electrical motor drives the drive screw do not illustrated equally of the driving device 2 shown in part rotatably.Described driving device 2 comprises the flower wheel 3 that is configured to worm gear, this flower wheel on its cover, be equipped with outer toothed portion 4 for electric motor driven drive screw combined action.
Described windscreen wiper drive 1 comprises the housing 5 be made of metal, and this housing is passed by the output shaft 6 illustrated very simplifiedly.Can fix in known manner the Wiper arm do not illustrated on the free end stretched out from housing 57 of output shaft 6.For this reason, described output shaft 6 preferably is provided with the outer cone of annular knurl in the zone of its free end 7.As an alternative, can be on free end 7 the fixing bent axle of the Wiper crank of rain brush equipment.
Described output shaft 6 torsionally is fixed on the wheel hub section 8 of centre of flower wheel 3 and has formed output shaft-flower wheel combination 9 with flower wheel 3.Except wheel hub section 8, described flower wheel 3 has the gear segment 10 of approximate flattened cylindrical shape, a kind of base plate with outer toothed portion 4.Described wheel hub section 8 extends out by gear segment 10 towards the free end 7 of output shaft 6 vertically from the zone that radially is positioned at gear segment 10 inside.The socket 11 that is configured to the circular contour of blind hole is inserted described wheel hub section 10, and output shaft 6 is sealed and is fixed in described socket by extruding.At this, described output shaft 6 is connected with the wheel hub section 8 of flower wheel 3 with the distolateral form fit section 12 form fit ground of annular knurl in shown embodiment.
As further known from Fig. 1, with output shaft 6 magnetics 13 is set in following end vertically separatedly at figure paper plane meta, this magnetics is arranged in axial projections part 14 in the zone of the axial outside of gear segment 10.See vertically, AMR magnetics 13 aligns with output shaft 6.
In addition, from Fig. 1, know that the flower wheel 3 of being made by synthetic material is just that wheel hub section 8 radially is bearing in axial direction part 15 outside.For this reason, described wheel hub section 8 embeds in the axle sleeve 16 of hollow cylinder vertically, and the member 17 that this axle sleeve is made by steel plate forms, and this member is supported on housing 5 vertically.As further known from Fig. 1, described axle sleeve 16 radially be supported on outside housing 5 dome-type section inside in the figure paper plane, be positioned at axially above zone.Flower wheel 3 is supported on the plate section 18 of radially extending with respect to axle sleeve 16 of described member 17 vertically, wherein for axial support flower wheel 3 molded the ring segment 19 that stretches out vertically gear segment 10 1 segment distances of abutment bosses section 8 outside radially.
As further known from Fig. 1, the form fit section 12 of described output shaft 6 is seen basically the front that terminates in the wheel hub section 8 of (figure paper plane below) extending by gear segment 10 vertically vertically, this wheel hub section, except explained plain bearing function, also has the task of radially supporting output shaft 6.In the section of the inside that radially is configured in gear segment 10 of wheel hub section 8, realize for moment of torsion is delivered to the real along the circumferential direction form fit of effect output shaft 6 from flower wheel 3.Support by wheel hub section 8 via the inner radial of the radial support of the gear segment of the extending axially of gear segment 10 (in the figure paper plane downwards) and this elongation and output shaft 6, the latter does not have vertically direction towards the free end 7 of output shaft 6 through gear segment 10, makes thus output shaft-extending axially of flower wheel combination 9 minimize.
As further known from Fig. 1, except the radial bearing for radial support output shaft-flower wheel combination 9 that is configured to plain bearing, also arranged and the axially spaced radial bearing 20 of wheel hub section 8, namely be arranged in vertically between the free end 7 and flower wheel 3 of output shaft 6.Described radial bearing 20 comprises radially axle sleeve 21, this radially axle sleeve radially lean against outside on housing 5 and radially and inside directly lean against on output shaft 6.Packing element 22 adjacency of annular are axle sleeve 21 radially, and the sealing element prevents that moisture from entering in housing 5 reliably.
Below according to Fig. 2, explain embodiment.This embodiment its structure with and mode of operation on basically corresponding to embodiment shown in Figure 1 and that describe in front, thereby the following difference for fear of repeating basically to inquire into the embodiment of Fig. 1.Accompanying drawing with reference to front aspect general character illustrates and Fig. 1.
Compare with the embodiment of Fig. 1, shortened described output shaft 6 in the embodiment by Fig. 2.In addition, the form fit section 12 formed by annular knurl equally in this embodiment extends to vertically radially in the wheel hub section 8 of supported (elongation) outside in the end regions of output shaft 6.By compared with prior art vertically the wheel hub section of hollow cylinder of elongation provide enough lateral support with being similar to Fig. 1.The structure of the shortening by output shaft 6 and the axial offset of realizing thus have vertically enough spaces for holding magnetics 13 in gear segment 10, and this magnetics is contained in fully in gear segment 10 and not and arranges vertically to a great extent.As further known from Fig. 2, the axial spacing between following end in the figure paper plane of described magnetics 13 and output shaft 6 and just the same size in the embodiment in figure 1.
Claims (9)
1. windscreen wiper drive, it has flower wheel-output shaft combination (9), the combination of this flower wheel-output shaft comprises flower wheel (3) and torsionally is fixed on the output shaft (6) in the wheel hub section (8) of flower wheel (3), fixing Wiper arm on the free end (7) of this output shaft, wherein, described flower wheel (3) radially is bearing in along on the wheel hub section (8) of free end (7) direction elongation
It is characterized in that,
Described wheel hub section (8) radially is bearing in axle sleeve (16), and this axle sleeve forms or directly formed by housing (5) by being supported on housing (5) and/or section that be fixed on the hollow cylinder of the member (17) on housing.
2. press windscreen wiper drive claimed in claim 1,
It is characterized in that,
On the side of the free end back to output shaft (6) (7) of flower wheel (3), arrange magnetics (13) for the magnetic field sensor combined action.
3. press windscreen wiper drive claimed in claim 2,
It is characterized in that,
Described flower wheel (3) has the gear segment (10) of at least approximate flattened cylindrical shape, and wheel hub section (8) is outstanding surpasses this gear segment, and described magnetics (13) is contained in the inside of gear segment (10).
4. press the described windscreen wiper drive of any one in the claims,
It is characterized in that,
Described wheel hub section (8) is the component part of plain bearing radially.
5. press windscreen wiper drive claimed in claim 1,
It is characterized in that,
Described flower wheel (3) is supported on vertically member (17) Shangdi and arranges.
6. press windscreen wiper drive claimed in claim 1,
It is characterized in that,
Described output shaft (6) is radially supported.
7. press windscreen wiper drive claimed in claim 1,
It is characterized in that,
With flower wheel (3), be connected to described output shaft (6) form fit.
8. press windscreen wiper drive claimed in claim 7,
It is characterized in that,
Form fit section (12) stretches in the radially supported zone of hub area vertically always, and output shaft (6) utilizes described form fit section form fit ground to be connected with wheel hub section (8).
9. press windscreen wiper drive claimed in claim 1,
It is characterized in that,
Described wheel hub section (8) radially directly supports output shaft (6) on the largest portion of its axial elongation in inside.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008042246.0 | 2008-09-22 | ||
| DE102008042246A DE102008042246A1 (en) | 2008-09-22 | 2008-09-22 | windshield wiper drive |
| PCT/EP2009/060180 WO2010031637A1 (en) | 2008-09-22 | 2009-08-06 | Windscreen wiper drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102159429A CN102159429A (en) | 2011-08-17 |
| CN102159429B true CN102159429B (en) | 2013-12-11 |
Family
ID=41268219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801368516A Expired - Fee Related CN102159429B (en) | 2008-09-22 | 2009-08-06 | Windscreen wiper drive |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2331369A1 (en) |
| KR (1) | KR20110063473A (en) |
| CN (1) | CN102159429B (en) |
| BR (1) | BRPI0918856A2 (en) |
| DE (1) | DE102008042246A1 (en) |
| WO (1) | WO2010031637A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012102900A1 (en) * | 2012-04-03 | 2013-10-10 | Valeo Wischersysteme Gmbh | Device for detecting the angular position of a shaft of a windscreen wiper motor and windscreen wiper motor with a device for detecting the angular position |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3044286A1 (en) * | 1980-11-25 | 1982-06-24 | SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim-Bissingen | Compact drive for windscreen wiper - has main drive gear mounted on bearing on end of wiper shaft |
| FR2698942A1 (en) * | 1992-12-07 | 1994-06-10 | Valeo Systemes Dessuyage | Drive unit for windscreen-wiper - comprises housing with two opposite radial walls with support zones taking ends of wheels to which output shaft is joined in translation |
| EP1170182A2 (en) * | 2000-07-04 | 2002-01-09 | Asmo Co., Ltd. | Rotational-position sensing device and windshield wiper system having the same |
| DE102005040647A1 (en) * | 2005-08-27 | 2007-03-08 | Valeo Systèmes d`Essuyage | Electromotive auxiliary drive e.g. windshield wiper drive, for e.g. road vehicle, has permanent magnet provided at shaft extension or at gearing unit, and magnetic sensors provided within bearing arrangement toward shaft axis |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19821079A1 (en) | 1997-06-26 | 1999-01-07 | Bosch Gmbh Robert | Electric drive unit |
-
2008
- 2008-09-22 DE DE102008042246A patent/DE102008042246A1/en not_active Withdrawn
-
2009
- 2009-08-06 EP EP09781538A patent/EP2331369A1/en not_active Withdrawn
- 2009-08-06 CN CN2009801368516A patent/CN102159429B/en not_active Expired - Fee Related
- 2009-08-06 WO PCT/EP2009/060180 patent/WO2010031637A1/en active Application Filing
- 2009-08-06 KR KR1020117006542A patent/KR20110063473A/en not_active Application Discontinuation
- 2009-08-06 BR BRPI0918856A patent/BRPI0918856A2/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3044286A1 (en) * | 1980-11-25 | 1982-06-24 | SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim-Bissingen | Compact drive for windscreen wiper - has main drive gear mounted on bearing on end of wiper shaft |
| FR2698942A1 (en) * | 1992-12-07 | 1994-06-10 | Valeo Systemes Dessuyage | Drive unit for windscreen-wiper - comprises housing with two opposite radial walls with support zones taking ends of wheels to which output shaft is joined in translation |
| EP1170182A2 (en) * | 2000-07-04 | 2002-01-09 | Asmo Co., Ltd. | Rotational-position sensing device and windshield wiper system having the same |
| DE102005040647A1 (en) * | 2005-08-27 | 2007-03-08 | Valeo Systèmes d`Essuyage | Electromotive auxiliary drive e.g. windshield wiper drive, for e.g. road vehicle, has permanent magnet provided at shaft extension or at gearing unit, and magnetic sensors provided within bearing arrangement toward shaft axis |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2331369A1 (en) | 2011-06-15 |
| WO2010031637A1 (en) | 2010-03-25 |
| KR20110063473A (en) | 2011-06-10 |
| DE102008042246A1 (en) | 2010-04-01 |
| CN102159429A (en) | 2011-08-17 |
| BRPI0918856A2 (en) | 2016-05-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20160806 |