EP2646295A1 - Mecanisme d'entrainement d'essuie-glace - Google Patents

Mecanisme d'entrainement d'essuie-glace

Info

Publication number
EP2646295A1
EP2646295A1 EP11773291.7A EP11773291A EP2646295A1 EP 2646295 A1 EP2646295 A1 EP 2646295A1 EP 11773291 A EP11773291 A EP 11773291A EP 2646295 A1 EP2646295 A1 EP 2646295A1
Authority
EP
European Patent Office
Prior art keywords
protective cap
wiper
housing
axial
drive
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.)
Withdrawn
Application number
EP11773291.7A
Other languages
German (de)
English (en)
Inventor
Paul Seiert
Orlando Sterns
Paul Geubel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2646295A1 publication Critical patent/EP2646295A1/fr
Withdrawn legal-status Critical Current

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
    • B60S1/56—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
    • 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
    • B60S1/18—Means for transmitting drive mechanically
    • 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
    • B60S1/3488—Means for mounting wiper arms onto the vehicle
    • B60S1/3493—Means for mounting the wiper shaft in the wiper bearing
    • 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
    • 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
    • B60S1/3488—Means for mounting wiper arms onto the vehicle
    • B60S1/349—Means for mounting the wiper bearing to the vehicle body

Definitions

  • Wiper drive The invention relates to a wiper drive for a rear wiper of a
  • the wiper drive can be used in particular on a rear window wiper of a motor vehicle.
  • the Wscherwelle is usually protected by a protective cap against moisture and foreign bodies.
  • the protective cap is connected by means of a radial press connection with a cylindrical shape of a housing of the Wscherantriebs, wherein the wiper shaft passes through the molding.
  • the relatively hard protective cap is in turn surrounded by a soft rubber grommet in the region of a passage through a body or the viewing window of the motor vehicle.
  • the wiper drive is connected to elastically mounted suspension points with the body of the motor vehicle to provide isolation from structure-borne noise and vibration.
  • the invention has for its object to provide an improved Wscherantrieb, which is better protected against axial loads in the region of a passage through the body of the motor vehicle.
  • An inventive wiper drive for a rear window wiper of a motor vehicle comprises a drive unit with a Wscherwelle for oscillating pivoting about an axis of rotation and a protective cap which surrounds the wiper shaft on an axial portion, wherein the protective cap is connected by means of a radial press connection with a housing of the drive unit.
  • the protective cap comprises a latching element which engages in a recess in the housing to absorb axial forces on the protective cap.
  • the recess in the housing extends in a direction radial to the axis of rotation.
  • the latching element is adapted, after engaging in the recess, an axial preload on the protective exercise cap. As a result, connection reliability between the protective cap and the housing can be further increased.
  • the latching element may have a hook portion with an axial and a radial contact surface each for engagement with a corresponding contact surface in
  • an angle between the axial and the radial contact surface of the hook portion can be 90 ° or less. If the angle is less than 90 °, an axial force which tries to pull the protective cap off its press connection with the housing can be used to further solidify an engagement between the hook section and the housing so that the protective cap does not come off even then can be when the axial forces acting on them are large enough to release the press connection to the housing.
  • the locking element may comprise an elastically deformable spring portion, wherein the spring portion comprises two separate webs.
  • the webs may extend from a cylindrical portion of the protective cap side by side in the radial and / or axial direction to the described hook portion.
  • the spring portion may include a first, radial portion and a second, axial portion. Due to the L-shaped spring section, spring properties can advantageously be predetermined by appropriate dimensioning of individual sections of the spring section.
  • the protective cap can comprise a torque support with a contact surface extending in the circumferential direction of the protective cap for abutment with a corresponding contact surface of the housing. This can force a correct rotational orientation of the cap during assembly to the housing. A holding security of the locking element can be improved.
  • the torque arm can help to absorb rotational forces, whereby the press connection of the protective cap with the housing can be further relieved.
  • the protective cap is formed integrally with the latching element. As a result, assembly can be simplified and manufacturing costs can be reduced. Additional parts to effect the effect of the invention are not required.
  • FIG. 1 shows a wiper drive for a rear window wiper of a motor vehicle
  • Figure 2 is a sectional view through the Wscherantrieb of Figure 1;
  • Figure 3 shows a protective cap for the Wscherantrieb of Figure 1;
  • Figure 4 shows detailed views of a housing of the Wscherantriebs of Figure 1;
  • Figure 5 shows a sectional view through the Wsch drive of Figure 1 during assembly of the protective cap.
  • FIG. 1 shows a wiper drive 100 for a rear window wiper of a motor vehicle 105.
  • the squeegee drive 100 comprises a drive unit 110 with a housing 15 to which a drive motor 120 is attached. In the vertical direction protrudes a drive shaft 125 from the housing 1 15. Not visible is a gear of the drive unit 110, which is accommodated in the housing 1 15 and a movement of the electric motor 120 converts to the drive shaft 125.
  • the drive unit 110 is set up or is controlled in such a way that the drive shaft 125 is rotated in an oscillating manner about a rotation axis 130.
  • the drive shaft 125 has an upper shaft end, which is set up for the torque-locking attachment of a wiper arm.
  • a lower axial portion of the drive shaft 125 is surrounded by a protective cap 135, which comprises at a lower end of two locking elements 140 which engage in the radial direction in corresponding, extending transversely to the axis of rotation 130 recesses 145 in the housing 115.
  • the protective cap 135 has a lower portion from which the latching members 140 extend, and an upper portion having a smaller outer diameter than the lower portion.
  • the two sections are substantially cylindrical.
  • Figure 2 shows a sectional view through the Wscherantrieb 100 of Figure 1. It is a section shown, which comprises an area around the protective cap 135. The locking elements 140 are not shown in Figure 2.
  • the protective flap 135 has in the region of its left end on a sealing lip 205 which circumferentially in abutment with the drive shaft 125 is to prevent ingress of moisture and / or impurities in a region within the protective cap 135.
  • a sealing lip 205 which circumferentially in abutment with the drive shaft 125 is to prevent ingress of moisture and / or impurities in a region within the protective cap 135.
  • an O-ring 210 is located on an inner side of the cap 135 in the region of the sealing lip 205, an O-ring 210.
  • the O-ring 210 is held in the axial direction to the left by the sealing lip 205 and in the axial direction to the right by a retaining ring 215.
  • the retaining ring 215 can be pressed under elastic tension in the interior of the protective cap 135 or fixed there by means of ultrasonic welding.
  • the protective cap 135 is preferably made of plastic, in particular a relatively hard plastic such as PA66.
  • the protective cap 135 is conically shaped on its inside.
  • the housing 1 15 has an approximately tubular extension 220 which extends coaxially to the drive shaft 125 and the protective cap 135.
  • the projection 220 is also conical on its outer side, so that between the cap 135 and the extension 220 an interference fit can be made by the protective cap 135 is pushed in the illustration of Figure 2 with a predetermined axial force to the right on the extension 220.
  • axial gap 230 In the region between a right axial end of the protective cap 135 and a shoulder 225 of the extension 220, there is an axial gap 230.
  • the protective cap 135 with at least one latching element 140 it is advantageous to reduce the axial gap 230 to 0 in order to prevent it in that the protective cap 135 is moved by operation, vibrations or vibrations in such a way that the interference fit between the protective cap 135 and the extension 220 is released.
  • FIG. 3 shows a protective cap 135 with two latching elements 140 for the wiper drive 100 from FIG. 1.
  • FIG. 3a shows a complete view of the protective cap 135 and
  • FIG. 3b shows an enlargement of a section of the protective cap 135 with one of the latching elements 140.
  • the two locking elements 140 close with respect to the axis of rotation 130 an angle of about 120 °.
  • a torque support 305 is located at angles of approximately 120 ° with respect to the latching elements 140.
  • the torque support 305 is essentially formed by an axial extension with two contact surfaces 310 which extend in the circumferential direction of the torque support 305 about the axis of rotation
  • the contact surfaces 310 extend in radial planes to the axis of rotation 130.
  • the latching element 140 comprises a spring section 315 and a hook section 320.
  • the spring section 315 connects a lower end of a cylindrical section of the protective cap 135 to the hook section 320 and is formed by a first web 325 and a second web 330, which are substantially parallel to each other.
  • Each web 325, 330 includes a first, radial portion 335 and a second, axial portion 340.
  • the radial portion 335 extends substantially perpendicular to the axis of rotation 130 and forms an angle of about 90 ° with the axial portion 340.
  • the hook portion 320 includes an axial abutment surface 345 facing upward and a radial abutment surface 350 facing inwardly of the axis of rotation 130.
  • the radial abutment surface 350 may also face outward in the radial direction.
  • the contact surfaces 345 and 350 enclose with each other a Wnkel which is a maximum of 90 °, but preferably is slightly smaller, for example, about 85 ° or about 80 °.
  • FIG 4 shows detailed views of a housing 1 15 of the Wscherantriebs 100 of Figure 1.
  • the housing 1 15 can be seen from different perspectives.
  • the extension 220 is supported by means of a number of radial webs 405 relative to the rest of the housing 115. Two adjacent webs 405 form a recess for receiving the torque arm 305 of the protective cap 135. Perpendicular to the circumferential direction extending contact surfaces 410 of the webs 405 are adapted to abut against the contact surfaces 310 of the torque arm 305.
  • the webs 405 are interconnected by an annular reinforcement 415 extending about the axis of rotation 135.
  • the recess 145 is introduced into the reinforcement 415 in the area between two webs 405 in the radial direction.
  • the recess 145 forms an undercut on the housing 115.
  • FIG. 5 shows a sectional view through the scaler drive 100 from FIG. 1 during assembly of the protective cap 135.
  • the illustrated area is limited to an environment around one of the latching elements 140.
  • Figure 5a shows the protective cap 135 in a position in which the hook portion 320 of the locking element 140 is not yet fully in the recess 145 is engaged, while in the illustration of Figure 5b, the hook portion 320 is fully engaged.
  • An outer boundary surface 505 of the reinforcement 415 is in the position shown in Figure 5b of the protective cap 135 in abutment with the radial bearing surface 350 of the hook portion 320 of the locking element 140.
  • An upper axial limiting surface 510 of the recesses 145, which passes through the reinforcement 415, is at the same time on the axial bearing surface 345 of the hook portion 320 of the locking element 140th
  • the locking element 140 is dimensioned such that the spring portion 315 of the locking element 140 acts a downward bias on the cap 135 when the axial gap 230 is zero and the hook portion 320 is fully engaged, as shown in Figure 5b.
  • the bias is maintained mainly by the radial portion 335 of the ridge 330.
  • the press connection shown in FIG. 2 between the extension 220 of the housing 15 and a corresponding end of the protective cap 135 can thereby be reduced or even completely released in its load of axial forces, so that disengagement of the press connection during operation of the wiper drive 100 is less likely or can be prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Sealing Devices (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

Un mécanisme d'entraînement d'essuie-glace pour un essuie-glace arrière d'un véhicule automobile comprend une unité d'entraînement dotée d'un arbre d'essuie-glace permettant un pivotement oscillatoire autour d'un axe de rotation et un couvercle de protection entourant l'arbre d'essuie-glace sur une partie axiale, la liaison entre le couvercle de protection et un boîtier de l'unité d'entraînement étant obtenue grâce à une force d'appui radiale. A cet effet, le couvercle de protection comprend un élément d'arrêt qui se loge dans un évidement du boîtier afin d'absorber les forces axiales exercées sur le couvercle de protection.
EP11773291.7A 2010-12-01 2011-10-25 Mecanisme d'entrainement d'essuie-glace Withdrawn EP2646295A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010062236A DE102010062236A1 (de) 2010-12-01 2010-12-01 Wischerantrieb
PCT/EP2011/068631 WO2012072340A1 (fr) 2010-12-01 2011-10-25 Mecanisme d'entrainement d'essuie-glace

Publications (1)

Publication Number Publication Date
EP2646295A1 true EP2646295A1 (fr) 2013-10-09

Family

ID=45092326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11773291.7A Withdrawn EP2646295A1 (fr) 2010-12-01 2011-10-25 Mecanisme d'entrainement d'essuie-glace

Country Status (7)

Country Link
US (1) US9254820B2 (fr)
EP (1) EP2646295A1 (fr)
JP (1) JP5650333B2 (fr)
KR (1) KR20140009227A (fr)
BR (1) BR112013013305A2 (fr)
DE (1) DE102010062236A1 (fr)
WO (1) WO2012072340A1 (fr)

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Publication number Priority date Publication date Assignee Title
US20130227809A1 (en) 2012-02-24 2013-09-05 Pylon Manufacturing Corp. Wiper blade
US9457768B2 (en) 2011-04-21 2016-10-04 Pylon Manufacturing Corp. Vortex damping wiper blade
US9174609B2 (en) 2011-04-21 2015-11-03 Pylon Manufacturing Corp. Wiper blade with cover
MX345011B (es) 2011-07-28 2017-01-11 Pylon Mfg Corp Adaptador, conector y conjunto de limpiaparabrisas.
US9108595B2 (en) 2011-07-29 2015-08-18 Pylon Manufacturing Corporation Windshield wiper connector
US20130219649A1 (en) 2012-02-24 2013-08-29 Pylon Manufacturing Corp. Wiper blade
US10829092B2 (en) 2012-09-24 2020-11-10 Pylon Manufacturing Corp. Wiper blade with modular mounting base
US10166951B2 (en) 2013-03-15 2019-01-01 Pylon Manufacturing Corp. Windshield wiper connector
US9505380B2 (en) 2014-03-07 2016-11-29 Pylon Manufacturing Corp. Windshield wiper connector and assembly
USD777079S1 (en) 2014-10-03 2017-01-24 Pylon Manufacturing Corp. Wiper blade frame
USD787308S1 (en) 2014-10-03 2017-05-23 Pylon Manufacturing Corp. Wiper blade package
WO2017075066A1 (fr) 2015-10-26 2017-05-04 Pylon Manufacturing Corp. Balai d'essuie-glace
WO2017201473A1 (fr) 2016-05-19 2017-11-23 Pylon Manufacturing Corp. Balai d'essuie-glace
US11040705B2 (en) 2016-05-19 2021-06-22 Pylon Manufacturing Corp. Windshield wiper connector
WO2017201485A1 (fr) 2016-05-19 2017-11-23 Pylon Manufacturing Corp. Connecteur d'essuie-glace
AU2017268008A1 (en) 2016-05-19 2018-11-22 Pylon Manufacturing Corp. Windshield wiper connector
CN109311452A (zh) 2016-05-19 2019-02-05 电缆塔制造有限公司 挡风玻璃雨刮器连接器
WO2018081791A1 (fr) 2016-10-31 2018-05-03 Pylon Manufacturing Corp. Balai d'essuie-glace pourvu d'une coiffe
DE102019117843A1 (de) * 2019-07-02 2021-01-07 Valeo Systèmes d'Éssuyage Wischermotor und Verfahren zu dessen Herstellung

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Also Published As

Publication number Publication date
KR20140009227A (ko) 2014-01-22
JP5650333B2 (ja) 2015-01-07
JP2013544706A (ja) 2013-12-19
BR112013013305A2 (pt) 2016-09-13
US20130247323A1 (en) 2013-09-26
DE102010062236A1 (de) 2012-06-06
WO2012072340A1 (fr) 2012-06-07
US9254820B2 (en) 2016-02-09

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