WO2013023884A1 - Liaison tubulaire pour palier d'essuie-glace - Google Patents

Liaison tubulaire pour palier d'essuie-glace Download PDF

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Publication number
WO2013023884A1
WO2013023884A1 PCT/EP2012/064487 EP2012064487W WO2013023884A1 WO 2013023884 A1 WO2013023884 A1 WO 2013023884A1 EP 2012064487 W EP2012064487 W EP 2012064487W WO 2013023884 A1 WO2013023884 A1 WO 2013023884A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting element
clamping
wiper
holding element
windscreen wiper
Prior art date
Application number
PCT/EP2012/064487
Other languages
German (de)
English (en)
Inventor
Lothar Trenkle
Sven Wolfgarten
Gundolf Surkamp
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
Priority to CN201280040084.0A priority Critical patent/CN103732456B/zh
Priority to EP12740132.1A priority patent/EP2744689A1/fr
Priority to BR112014003424A priority patent/BR112014003424A2/pt
Publication of WO2013023884A1 publication Critical patent/WO2013023884A1/fr

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
    • B60S1/0413—Modular wiper assembly
    • B60S1/0422—Modular wiper assembly having a separate transverse element
    • B60S1/0425—Modular wiper assembly having a separate transverse element characterised by the attachment of the wiper shaft holders to the transverse element

Definitions

  • the present invention relates to a windshield wiper device for a motor vehicle with a wiper motor and at least one wiper bearing, in which a wiper shaft is mounted, which is driven for actuating a wiper arm connected to the wiper shaft by the wiper motor, wherein the wiper bearing is supported on the wiper motor by a connecting element which is connected at its one end region with a retaining element formed on the wiper bearing.
  • Windscreen wiper devices of this type are known and are used in motor vehicles as front or rear wiper.
  • the windshield wiper devices include a wiper motor and at least one wiper bearing.
  • a wiper shaft which can be driven by the wiper motor to actuate a wiper arm connected to the wiper shaft, is mounted in the wiper bearing.
  • the wiper bearing is supported on the wiper motor by a mostly tubular connection element, which is pushed at its one end region onto a bearing journal formed on the wiper bearing and is usually connected in a form-fitting manner by a crimp connection to the bearing journal.
  • a disadvantage of this design is that during the crimping process, the components to be fixed together are exposed to large deformation forces to produce a positive connection between the bearing pin and the connecting element.
  • the connecting element also areas of the material of the journal are plastically deformed. This can have the consequence that the material of the bearing pin is exposed to great stress, especially in the area of the crimping of the connection partners, which can lead to impairments of the material structure up to material fatigue.
  • DE 10 2010 029 105 A1 proposes to form crimping pockets on two opposite side regions of the trunnion whose geometrical dimensions substantially correspond to the dimensions of the crimping tools.
  • the connecting element is in the crimp pockets overlapping areas from the outside via crimping Tools deformed inside in the Crimptaschen so that a positive connection of the connecting element with the bearing pin is formed.
  • the connecting element is plastically deformed during crimping with the bearing pin.
  • the crimped components are permanently connected to each other and can not be separated if necessary or only with great effort.
  • the implementation of the crimping process in a mass production of windshield wiper devices is cost-intensive due to the high cost of the crimping machines.
  • the present invention provides a windshield wiper device of the type mentioned, in which the holding element is cup-shaped and surrounds the pointing to the wiper bearing end portion of the connecting element at least over a peripheral portion, wherein the mutually contacting surfaces of the holding element and the connecting element at least have a projection and at least one recess corresponding to the projection, which engage with each other in a form-fitting manner, when the connecting element is inserted or inserted into the holding element.
  • the invention is therefore based on the consideration not to crimp the holding element and the connecting element, but to provide projections and corresponding indentations on the contact surfaces of the two components, which engage with each other in a form-fitting manner when the connecting element is inserted or inserted into the holding element ,
  • An advantage of this embodiment is that the two components can be solved again in case of need from each other and further need not be plastically deformed, the retaining element and the connecting element to connect them.
  • the number of projections and the corresponding recesses and their arrangement in the connecting region of the two components can be varied according to the expected loads during operation of the windshield wiper device.
  • the number of projections and the indentations can be increased in order to improve the stability of the connection between the holding element and the connecting element.
  • the mutually contacting surfaces of the holding element and the connecting element may have a plurality of projections offset in a circumferential direction of the connecting element and projections corresponding to the projections. This increases the stability of the connection between the holding element and the connecting element.
  • the at least one projection on the inner surface of the holding element and the at least one indentation on the outer surface of the connecting element may be formed. This enables a simple production of the individual components, since the indentations on the connecting element and the projections on the retaining element can be impressed from the outside to the inside.
  • the at least one projection and the at least one indentation may have a circular contour.
  • the holding element can completely surround the end region of the connecting element facing the wiper bearing and have an inner contour that is substantially complementary to the outer contour of the connecting element.
  • the at least partially planar contact between the retaining element and the connecting element generates a particularly resilient positive connection between the two components. So that the connecting element can be pushed into the receiving space formed by the holding element, at least one of the two components must be elastically deformable.
  • the holding element and the connecting element may consist of materials having different moduli of elasticity, in which case the component with the lower modulus of elasticity is elastically deformed during insertion of the connecting element.
  • the wiper bearing made of a plastic and the connecting element can be made of a metal, in particular steel, or aluminum or zinc die-cast.
  • the holding element surrounds the wiper bearing facing end portion of the connecting element, leaving an open peripheral area only partially and a clamping element is provided to fix the connecting element to the holding element.
  • the connecting element is simply placed in the holding element, wherein the at least one projection with the corresponding indentation is positively engaged.
  • the connecting element is held by the clamping element on the retaining element releasably fixed. It is exploited that act in operation forces substantially in the longitudinal direction of the connecting element on the connection between the holding element and the connecting element. These are received by the positive connection and the clamping element holds the connection between the holding element and the connecting element against the loading direction of the connecting element together. Accordingly simple, the clamping element can be formed.
  • the components can also be made of materials with a high modulus of elasticity.
  • the holding element surrounds the connecting element over a circumferential region of about 70 ° to 100 °, in particular about 90 °.
  • it may be approximately L-shaped. This allows a simple and inexpensive production of the retaining element.
  • the clamping element may be formed as a clamping spring, in particular a C- or U-shaped clamping spring, which at least partially surrounds the open peripheral region of the connecting element, wherein an end portion of the clamping element is fixed to the holding element and the other end portion of the connecting element.
  • the clamping element can completely surround the open peripheral region of the connecting element, in which case both end regions of the clamping element are fixed to the holding element.
  • the clamping element may be formed as a clamping sleeve, which is slidable over the retaining element and the connecting element in the connecting region thereof, in order to fix the connecting element to the retaining element.
  • the clamping sleeve is first pushed over the connecting element before inserting the connecting element in the holding element. After the connecting element is inserted into the holding element, the clamping sleeve is pressed onto the wiper bearing-pipe connection. In this way, a secure and resilient connection is achieved, which is easily solvable again.
  • the inner contour of the clamping sleeve is formed approximately corresponding to the outer contour resulting from the end region of the connecting element and the retaining element. As a result, the clamping action of the clamping sleeve is reinforced.
  • the holding element and / or the connecting element and / or the clamping element can be connected to each other by additional fastening means, in particular screwed and / or riveted.
  • the connecting element may be tubular. It is advantageous that the tubular shape ensures sufficient stability for the loads occurring in a windshield wiper device and thus the connecting element can be formed very easily.
  • FIG. 1 shows a windshield wiper device for a motor vehicle according to a first embodiment in perspective view
  • FIG. 2 shows an enlarged representation of a wiper bearing with a connecting element from FIG. 1 in a cross-sectional view
  • FIG. 3 shows an enlarged view of a wiper bearing and a connecting element according to a second embodiment in a cross-sectional view
  • Figure 4 an enlarged view of the wiper bearing with the connecting element of Figure 3 in a side view
  • Figure 5 an enlarged view of a wiper bearing with a connecting element according to a third embodiment of the present invention in a side view.
  • the windshield wiper device 1 for a motor vehicle according to the first embodiment comprises a wiper motor 2 and two wiper motors. ger 3a, 3b.
  • a wiper shaft 4a, 4b is mounted in the wiper bearings 3a, 3b, which can be driven by the wiper motor 2 to actuate a wiper arm connected to the wiper shaft 4a, 4b and not shown here.
  • the wiper bearings 3a, 3b are respectively supported on the wiper motor 2 by a tubular connection element 5a, 5b which is connected at one end region to a holding element 6a, 6b formed on the wiper bearing 4a, 4b and to the wiper motor 2 at its other end region ,
  • the holding element 6 is cup-shaped and the wiper bearing 3 facing end portion of the connecting element 5 completely encloses.
  • the holding element 6 here has a complementary to the outer contour of the connecting element 5 formed inner contour.
  • a screw 9 is provided here, which connects the holding element 6 and the connecting element 5 together.
  • the tubular connecting element 5 is inserted into the receiving space formed by the holding element 6.
  • the projections 7 of the holding element 6 and the recesses 8 of the connecting element 5 engage with each other, so that the connecting element 5 is locked to the holding element 6.
  • the holding member 6 made of plastic and the connecting member 5 are made of steel, i. the holding element 6 has a lower modulus of elasticity than the connecting element 5.
  • the holding member 6 is briefly elastically deformed during insertion of the connecting element 5 and thus allows the overcoming of the projections. 7
  • the projections 7 - as shown here - be designed to be relatively flat in order to reduce the forces necessary during insertion of the connecting element 5.
  • the forces acting on the shaft bearing tube connection 10 in operation forces are taken up on the one hand by the positive connection of the connecting element 5 with the holding element 6 and the other by the screw.
  • FIG. 3 shows part of a windshield wiper device according to a second embodiment of the present invention.
  • the construction of the windshield wiper device according to the second embodiment of the present invention is analogous A manner of the windshield wiper device according to the first embodiment of the present invention.
  • the retaining element 12 is also designed shell-shaped, however, unlike the first embodiment of the present invention, it only partially encloses the end region of the connecting element 5 facing the wiper bearing 3 while leaving open an open circumferential area.
  • the holding element 12 surrounds the connecting element 5 here over a circumferential region of about 90 ° and, as can be seen in FIG. 4, is L-shaped.
  • the mutually contacting surfaces of the Garele- element 12 and the connecting element 5 have four projections 7 and four to the projections 7 corresponding indentations 8, which have a circular contour and form-locking engagement with each other, when the connecting element 5 in the holding element 12th is inserted.
  • the projections 7 and the projections 7 corresponding to indentations 8 are pairwise offset in a circumferential direction of the connecting element 5 by 90 ° to each other.
  • a clamping spring 13 is provided to fix the connecting element 5 to the holding element 12.
  • the clamping spring 13 is approximately C-shaped and partially surrounds the open peripheral region of the connecting element 5, wherein an end portion of the clamping element 13 is fixed to the holding element 12 and the other end portion of the connecting element 5.
  • depressions 14 and corresponding to the clamping element 13 retaining lugs 15 are formed on the top and bottom of the structural unit shown in Figure 4, the engage each other positively.
  • FIG. 5 shows a windshield wiper device according to a third embodiment of the present invention.
  • the windshield wiper device according to the third embodiment has a clamping sleeve 16 instead of the clamping spring 13.
  • the clamping sleeve 16 is above the pointing to the wiper bearing 3 end of the
  • Connecting element 5 and the holding member 12 is pushed to fix the connecting element 5 on the holding element 12.
  • the inner contour of the clamping sleeve 16 is formed approximately corresponding to the outer contour resulting from the end region of the connecting element 5 and the retaining element 12.
  • recesses 14 and corresponding to the clamping sleeve 16 retaining lugs 17 are formed on the top and bottom of the structural unit shown in Figure 5, the engage each other positively.
  • further projections 7 and recesses 8 and / or further fastening means 9 such as screws and rivets may be provided to counteract the forces acting during operation.
  • the projections 7 and indentations 8 and the fastening means 9 can be varied not only in number, but also in the position within the inner surfaces of the components 5, 6, 12 which are in contact with one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Connection Of Plates (AREA)
  • Motor Or Generator Frames (AREA)
  • Support Of The Bearing (AREA)

Abstract

L'invention concerne un dispositif d'essuie-glace pour un véhicule automobile, comprenant un moteur d'essuie-glace et au moins un palier d'essuie-glace dans lequel est monté un arbre d'essuie-glace apte à être entraîné par le moteur d'essuie-glace pour actionner un bras d'essuie-glace qui est en liaison avec l'arbre d'essuie-glace, le palier d'essuie-glace étant appuyé contre le moteur d'essuie-glace par l'intermédiaire d'un élément de liaison qui, par sa zone terminale, est relié à un élément de retenue formé sur le palier d'essuie-glace. L'invention est caractérisée en ce que l'élément de retenue est de conception cupuliforme et entoure au moins sur une partie de sa circonférence la zone terminale, pointant vers le palier d'essuie-glace, de l'élément de liaison. Les surfaces en contact mutuel de l'élément de retenue et de l'élément de liaison présentent au moins une saillie et au moins un creux correspondant à la saillie, qui entrent en prise mutuelle par complémentarité de forme lorsque l'élément de liaison est inséré ou mis en place dans l'élément de retenue.
PCT/EP2012/064487 2011-08-16 2012-07-24 Liaison tubulaire pour palier d'essuie-glace WO2013023884A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201280040084.0A CN103732456B (zh) 2011-08-16 2012-07-24 玻璃刮水器轴承-管连接部
EP12740132.1A EP2744689A1 (fr) 2011-08-16 2012-07-24 Liaison tubulaire pour palier d'essuie-glace
BR112014003424A BR112014003424A2 (pt) 2011-08-16 2012-07-24 conexão tubular para mancal de limpador de para-brisa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011081027.7 2011-08-16
DE201110081027 DE102011081027A1 (de) 2011-08-16 2011-08-16 Scheibenwischerlager-Rohrverbindung

Publications (1)

Publication Number Publication Date
WO2013023884A1 true WO2013023884A1 (fr) 2013-02-21

Family

ID=46581961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/064487 WO2013023884A1 (fr) 2011-08-16 2012-07-24 Liaison tubulaire pour palier d'essuie-glace

Country Status (5)

Country Link
EP (1) EP2744689A1 (fr)
CN (1) CN103732456B (fr)
BR (1) BR112014003424A2 (fr)
DE (1) DE102011081027A1 (fr)
WO (1) WO2013023884A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104071125A (zh) * 2013-03-28 2014-10-01 博世汽车部件(长沙)有限公司 雨刮器系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016218675A1 (de) * 2016-09-28 2018-03-29 Robert Bosch Gmbh Wischerlagervorrichtung, insbesondere Scheibenwischerlagervorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704356A1 (fr) * 1994-09-28 1996-04-03 Valeo Systemes D'essuyage Platine-support pour un dispositif d'essuie-glace
US20040244134A1 (en) * 2003-02-04 2004-12-09 Linden Philip S. Windshield wiper assembly and method of forming the same
DE10360831A1 (de) * 2003-12-23 2005-07-28 Robert Bosch Gmbh Scheibenwischvorrichtung, insbesondere für ein Kraftfahrzeug
DE102008004324A1 (de) * 2008-01-15 2009-07-16 Volkswagen Ag Scheibenwischeranlage an einem Fahrzeug
DE102010029105A1 (de) 2009-10-21 2011-04-28 Robert Bosch Gmbh Scheibenwischervorrichtung
WO2012067939A2 (fr) * 2010-11-15 2012-05-24 Trico Products Corporation Corps pivotant pour système d'essuie-glace de pare-brise

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4146329B2 (ja) * 2003-11-11 2008-09-10 アスモ株式会社 車両用ワイパ装置
JP4938526B2 (ja) * 2007-03-28 2012-05-23 株式会社ミツバ 車両用ワイパ装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704356A1 (fr) * 1994-09-28 1996-04-03 Valeo Systemes D'essuyage Platine-support pour un dispositif d'essuie-glace
US20040244134A1 (en) * 2003-02-04 2004-12-09 Linden Philip S. Windshield wiper assembly and method of forming the same
DE10360831A1 (de) * 2003-12-23 2005-07-28 Robert Bosch Gmbh Scheibenwischvorrichtung, insbesondere für ein Kraftfahrzeug
DE102008004324A1 (de) * 2008-01-15 2009-07-16 Volkswagen Ag Scheibenwischeranlage an einem Fahrzeug
DE102010029105A1 (de) 2009-10-21 2011-04-28 Robert Bosch Gmbh Scheibenwischervorrichtung
WO2012067939A2 (fr) * 2010-11-15 2012-05-24 Trico Products Corporation Corps pivotant pour système d'essuie-glace de pare-brise

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104071125A (zh) * 2013-03-28 2014-10-01 博世汽车部件(长沙)有限公司 雨刮器系统

Also Published As

Publication number Publication date
DE102011081027A1 (de) 2013-02-21
CN103732456B (zh) 2016-12-21
EP2744689A1 (fr) 2014-06-25
CN103732456A (zh) 2014-04-16
BR112014003424A2 (pt) 2017-03-01

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