WO1996018528A1 - Essuie-glace pour vehicules - Google Patents

Essuie-glace pour vehicules Download PDF

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Publication number
WO1996018528A1
WO1996018528A1 PCT/DE1995/001572 DE9501572W WO9618528A1 WO 1996018528 A1 WO1996018528 A1 WO 1996018528A1 DE 9501572 W DE9501572 W DE 9501572W WO 9618528 A1 WO9618528 A1 WO 9618528A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiper
crank
linkage
designed
rotation
Prior art date
Application number
PCT/DE1995/001572
Other languages
German (de)
English (en)
Inventor
Ulrich Metz
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 WO1996018528A1 publication Critical patent/WO1996018528A1/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
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16—Means for transmitting drive
    • B60S1/18—Means for transmitting drive mechanically
    • B60S1/24—Means for transmitting drive mechanically by rotary cranks
    • B60S1/245—Means for transmitting drive mechanically by rotary cranks with particular rod arrangements between the motor driven axle and the wiper arm axle
    • 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

Definitions

  • the invention relates to a windshield wiper device for vehicles, in particular for the windshield of motor vehicles, of the type defined in the preamble of claim 1.
  • the wiper motor is a conventional electric motor which rotates in a predetermined direction of rotation and thereby drives a rotatably mounted crank.
  • the wiper linkage comprises an articulated rod which is articulated on the one hand on the crank and on the other hand on a rocker arm which is connected in a rotationally fixed manner to a wiper arm and is rotatable in a fixed pivot bearing.
  • the other wiper arm is also non-rotatably connected to a rocker which is rotatably held at a distance from the first rocker in a fixed pivot bearing.
  • the two Swings are coupled by a further articulated rod, which is articulated at one end to the swing arms.
  • a likewise known windshield wiper device for motor vehicles (DE 41 04 565 AI) has an electric wiper motor which is reversible in the direction of rotation and on the output shaft of which the wiper arm sits directly and in a rotationally fixed manner.
  • An electronic control device enables by reversing the direction of rotation of the wiper motor when the wiper field has reached an end position
  • Wiper blade a reciprocating wiping motion of the wiper arm.
  • Such a windshield wiper device has so far only been used in rear windows of motor vehicles, where only a wiper arm with a wiper blade is required.
  • the windshield wiper device according to the invention with the characterizing features of claim 1 has the advantage that the two wiper arms can be driven either in the same or in opposite directions by appropriate design of the drive linkage. By reversing the direction of rotation of the wiper motor, the intermediate storage that would otherwise normally be necessary in at least one drive linkage can be saved, as a result of which component tolerances are eliminated.
  • the drive linkage of one wiper arm as a four-bar linkage and the drive linkage of the other wiper arm as
  • Coupling linkage formed so the wiper arms through the oscillating wiper motor in the same wiping direction back and forth across the wiping field.
  • the angle of association that the two triangle legs passing through the third corner point and in each case one articulation point for the two drive linkages enclose can be selected at an acute or obtuse angle.
  • the four-bar linkage causes the wiper arm to move, which means that when the wiper blades are located one behind the other in the park position in the longitudinal direction of the front window, a larger one
  • Wiper surface of one wiper blade is achieved without the two wiper blades colliding.
  • the four-bar linkage consists of a coupling rod which is articulated on the one hand at the articulation point of the crank and on the other hand is firmly connected to the wiper arm and of a support rod which is articulated approximately centrally on the coupling rod and which is pivotably held in a fixed support bearing.
  • the coupling linkage is realized by a rocker arm that is firmly connected to the wiper arm and rotatable in a fixed swivel bearing and by an articulated rod that is articulated on the one hand on the rocker arm and on the other hand on the crank in the articulation point.
  • the two drive linkages of the wiper arms are each designed as coupling linkages, the wiper arms simultaneously wipe in the opposite wiping direction, and the wiper blades attached to them lie one above the other in the park position.
  • the crank and the assignment angle of the articulation points on the crank, as well as the drive linkage of the wiper arms accelerated starting of the wiper blade parked above and delayed starting of the wiper blade parked below can be achieved, so that no collision between the wiper blades can occur.
  • the range of motion of the joint rods is reduced, and there are small wiper angle tolerances and missing component tolerances and joint points.
  • the correspondence angle that the two triangular legs passing through the third corner point and one articulation point for each of the two drive rods enclose can be made at an acute or obtuse angle.
  • the articulation points on the crank can be arranged in a common plane of movement.
  • FIG. 1 excerpts of a windshield
  • Fig. 2 is an enlarged view of the
  • FIG. 3 shows a detail of a windscreen of a motor vehicle with a windshield wiper device with opposing wiper blades
  • FIG. 4 shows the same representation as in FIG. 1 with a wiper linkage modified in comparison in the windshield wiper device
  • FIG. Fig. 5 shows the same representation as in Fig. 3 with a modified wiper linkage of the windshield wiper device
  • the windshield wiper device shown in FIG. 1 for the front window 10 of a motor vehicle has two wiper arms 11, 12 with wiper blades 13, 14 attached to them. and an electric wiper motor 16 driving the wiper arms 11, 12 via a wiper linkage 15.
  • the wiper motor 16 is designed to be reversible in the direction of rotation, it being switched over in its direction of rotation by a control device (not shown here) when one of the two end positions reaches a predetermined angle of rotation range of approximately 180 °. In this way, the wiper motor 16 executes an oscillating rotary movement after starting in a rotation angle range of approximately 180 °.
  • This oscillating rotary movement of the wiper motor 16 is transmitted to the wiper linkage 15 via a transmission gear 17 and a crank 18. With a corresponding design of the transmission 17, the range of rotation angle of the wiper motor 16 can be expanded to almost 360 °.
  • the wiper linkage 15 consists of two drive linkages 21, 22, each of which is assigned to a wiper arm 11 or 12.
  • a pivot point 19 or 20 is provided on the crank 18 for each drive linkage 21, 22.
  • the articulation points 19, 20 form the corner points of a triangle, the third corner point of which the axis of rotation 23 of the crank 18 pierces.
  • the articulation points 19, 20 are realized by pivot joints, the pivot axes 21, 22 of which are aligned approximately parallel to the axis of rotation 23 of the crank 18. It is possible to design the articulation points 19, 20 as ball joints. That of the two, each through the axis of rotation 23 the crank angle 18 and one of the triangle legs passing through the two articulation points 19, 20 is designated by ot in FIG. 2. This assignment angle is acute at crank 18 in FIGS. 1 and 2 and is, for example, approximately 60 °. to
  • crank 18 is designed as an unequal leg angle plate.
  • the drive linkage 21 for the wiper arm 11 is designed as a four-bar linkage and the drive linkage 22 for the wiper arm 12 as a conventional coupling linkage.
  • the four-bar linkage (FIG. 2) consists of a coupling rod 26 which is articulated on the one hand at the articulation point 19 of the crank 18, that is to say is pivotably seated on a pivot pin 24 projecting there from the crank 18, and on the other hand is firmly connected to the wiper arm 11, as well as from a support rod 27 which on the one hand articulates on the coupling rod 26 via a pivot bearing 28 arranged on the coupling rod 26 between the crank 18 and the wiper arm 11 and on the other hand is pivotably held in a fixed support bearing 29.
  • the four-bar linkage (FIG. 2) consists of a coupling rod 26 which is articulated on the one hand at the articulation point 19 of the crank 18, that is to say is pivotably seated on a pivot pin 24 projecting there from the crank 18, and on the other hand is firmly
  • Coupling linkage 26 for the wiper arm 12 comprises a rocker arm 30 which is fixedly connected to the wiper arm 12 and which is rotatably held in a fixed pivot bearing 31, and an articulated rod 32 which is on the one hand on the rocker arm 30 and on the other hand in the articulation point 20 of the crank 18 is articulated, ie is pivotably seated on a pivot pin 25 projecting there from the crank 18 (FIG. 2).
  • the articulation on the rocker 30 takes place with a pivot bearing 35 arranged on the rocker 30.
  • the windshield wiper device is shown in the non-operating division.
  • the wiper arms 11, 12 with the wiper blades 13, 14 are in the park position, the wiper blades 13 lying one behind the other at the lower edge of the windshield 10, as seen along the edge of the windshield 10.
  • the wiper motor 16 switched on, it performs an oscillating rotary movement in a rotation angle range of approx. 180 °.
  • the crank 18 likewise executes an oscillating rotary movement via the transmission gear 17 and drives the wiper arms 11, 12 to a reciprocating pivoting movement via the two drive linkages 21, 22.
  • the wiper blades 13, 14 sweep over the windshield 10 in a predetermined wiping area 33 and 34, respectively.
  • the two wiping areas 33, 34 are shown in dash-dot lines in FIG. 1.
  • the wiper arm 11 performs an additional stroke movement as a result of the drive linkage 21 designed as a four-bar linkage, as a result of which the wiping field of the wiper blade 13 is enlarged so that it partially covers the wiping field 34 of the wiper blade 14. A collision of the wiper blades 13, 14 is excluded.
  • the assignment angle o (.
  • the articulation points 19.20 for the drive linkages 21.22 can be achieved on the one hand that the wiper arms 11,12 are in the desired parking position shown in Fig. 1 and on the other hand the wiper arms a harmonious acceleration curve over the Have wiping fields 33, 34.
  • the windshield wiper device shown in FIG. 4 differs from the windshield wiper device just described in that the coordination angle, that of the two by the axis of rotation 23 of the crank 18 designed as an angle plate and the two articulation points 19, 20 of the drive linkages 21, 22 on the crank 18 continuous triangle leg is included, is obtuse-angled. This requires that the rocker 30 of the drive linkage 22, which is designed as a coupling linkage, is moved to the other side of the wiper arm 12, so that the wiper arm 12 and the articulated rod 32 cross. Otherwise, the structure and mode of operation are as described above, so that the same components are provided with the same reference numerals as in FIGS. 1 and 2.
  • the wiper arms 11, 12 with wiper blades 13, 14 are not moved in the same direction but in opposite directions over the windshield 10.
  • the wiper fields of the wiper blades 13, 14 are designated 33 'and 34.
  • the wiper blades 13, 14 are in their parking position at the lower edge of the windshield 10 in the middle of the windshield 10 and one above the other in the wiping direction.
  • the assignment angle ol of the articulation points 19, 20 for the wiper linkages 21 ', 22 on the crank 18' is selected to be bluntly inclusive, in the example approximately 145 °, and the drive linkages 21 articulated thereon ', 22 are identical and each designed as a coupling linkage, as already described for FIG. 1.
  • the articulation points 19, 20 of the drive linkages 21 ', 22 on the crank 18' lie on the same side of the crank 18 ', so that the link rods 32 in the two drive linkages 21', 22 move in the same plane.
  • a suitable choice of the position of the crank 18 'in the park position of the wiper arms 11, 12, the assignment angle oC on the crank 18' and the lengths of the joint rods 32 in the two drive linkages 21 ', 22 can accelerate the start of the wiper blade 13 and 12 parked above a delayed start of the wiper blade 14 parked below can be achieved, so that no collision occurs between the wiper blades 13, 14.
  • FIG. 5 shows the same windshield wiper device as in FIG. 3 with a slightly modified wiper linkage 15.
  • the assignment angle cxC of the two by the axis of rotation 23 of the crank 18 formed as an angle plate and the two articulation points 19, 20 of the drive linkages 21 'and 22 on the crank 18' triangle leg passing through is not obtuse but acute-angled here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

Un essuie-glace pour véhicules, notamment pour la vitre avant (10) de véhicules à moteur, comprend un moteur électrique (16) d'essuie-glace qui anime deux bras d'essuie-glace (11, 12) d'un mouvement de va-et-vient au moyen d'une manivelle (18) et de tringles (15). Afin de réaliser différentes conceptions d'essuyage, le sens de rotation du moteur (16) peut être inversé dans une plage d'angles de rotation inférieure à 360° et la manivelle (18) comprend deux points (19, 20) sur lesquels s'articulent les tringles d'entraînement (21, 22) de chaque bras d'essuie-glace (11, 12). Les points d'articulation (19, 20) forment les coins d'un triangle dont le troisième coin est traversé par l'axe de rotation (23) de la manivelle (18). Lorsque les tringles d'entraînement (21, 22) sont constituées d'un quadrilatère articulé et de tringles d'accouplement, les bras d'essuie-glace (11, 12) sont entraînés dans le même sens et, lorsqu'elles sont constituées de deux tringles d'accouplement, les bras d'essuie-glace (11, 12) sont entraînés en sens inverse.
PCT/DE1995/001572 1994-12-10 1995-11-14 Essuie-glace pour vehicules WO1996018528A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4444066.9 1994-12-10
DE19944444066 DE4444066B4 (de) 1994-12-10 1994-12-10 Scheibenwischvorrichtung für Fahrzeuge

Publications (1)

Publication Number Publication Date
WO1996018528A1 true WO1996018528A1 (fr) 1996-06-20

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ID=6535496

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/001572 WO1996018528A1 (fr) 1994-12-10 1995-11-14 Essuie-glace pour vehicules

Country Status (2)

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DE (1) DE4444066B4 (fr)
WO (1) WO1996018528A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422102B1 (en) * 1999-03-22 2002-07-23 Robert Bosch Gmbh Wiper drive mechanism with a reversible gear motor
JP2017178258A (ja) * 2016-03-31 2017-10-05 アスモ株式会社 車両ワイパ装置

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19950488A1 (de) * 1999-10-20 2001-05-10 Bosch Gmbh Robert Wischergestänge einer Scheibenwischanlage für Fahrzeuge und ein Verfahren zur Herstellung eines Koppelelements eines Wischergestänges
DE19950614A1 (de) * 1999-10-20 2001-05-03 Bosch Gmbh Robert Scheibenwischanlage für Fahrzeuge
DE10011842B4 (de) * 2000-03-10 2011-02-24 Volkswagen Ag Scheibenwischeranlage mit einem Reversiermotor
DE10125988B4 (de) * 2001-05-29 2012-03-08 Volkswagen Ag Scheibenwischeranlage mit einem Reversiermotor
DE10138003A1 (de) 2001-08-02 2003-02-20 Bosch Gmbh Robert Wischerarm sowie Scheibenwischervorrichtung, insbesondere für ein Kraftfahrzeug
DE10149218A1 (de) * 2001-10-05 2003-05-08 Bosch Gmbh Robert Wischeranlage
DE10159052A1 (de) 2001-11-30 2003-06-18 Bosch Gmbh Robert Scheibenwischvorrichtung, insbesondere für ein Kraftfahrzeug
DE10259562A1 (de) * 2002-12-19 2004-07-01 Valeo Systèmes d`Essuyage Wischeranlage für ein Fahrzeug
DE102015224616A1 (de) 2015-12-08 2017-06-08 Robert Bosch Gmbh Verfahren zum Befestigen einer Kugelschale in einer Gelenkstange und Gelenkstange mit Kugelschale
CN206297533U (zh) * 2016-12-02 2017-07-04 台州法雷奥温岭汽车零部件有限公司 用于车辆的雨刮器系统
US11117551B2 (en) 2017-01-10 2021-09-14 Denso Corporation Wiper device for vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113333A (en) * 1961-04-25 1963-12-10 Trico Products Corp Windshield wiper system
US3125777A (en) * 1964-03-24 Windshield wiper mechanism
DE4214679A1 (de) * 1992-05-02 1993-11-04 Swf Auto Electric Gmbh Wischarm fuer eine scheibenwischeranlage eines kraftfahrzeugs
DE9306529U1 (de) * 1993-04-30 1994-09-15 Bosch Gmbh Robert Wischvorrichtung für Scheiben von Kraftfahrzeugen mit einem pendelnd angetriebenen, ein auf der zu wischenden Scheibe angelegtes Wischblatt tragenden Wischerarm

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745853A (en) * 1972-03-22 1973-07-17 Trico Products Corp Adjustable connecting arm
DE3825321A1 (de) * 1988-07-26 1990-02-01 Swf Auto Electric Gmbh Scheibenwischeranlage, insbesondere fuer kraftfahrzeuge
JPH03239174A (ja) * 1990-02-16 1991-10-24 Jidosha Denki Kogyo Co Ltd ワイパ制御装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125777A (en) * 1964-03-24 Windshield wiper mechanism
US3113333A (en) * 1961-04-25 1963-12-10 Trico Products Corp Windshield wiper system
DE4214679A1 (de) * 1992-05-02 1993-11-04 Swf Auto Electric Gmbh Wischarm fuer eine scheibenwischeranlage eines kraftfahrzeugs
DE9306529U1 (de) * 1993-04-30 1994-09-15 Bosch Gmbh Robert Wischvorrichtung für Scheiben von Kraftfahrzeugen mit einem pendelnd angetriebenen, ein auf der zu wischenden Scheibe angelegtes Wischblatt tragenden Wischerarm

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422102B1 (en) * 1999-03-22 2002-07-23 Robert Bosch Gmbh Wiper drive mechanism with a reversible gear motor
JP2017178258A (ja) * 2016-03-31 2017-10-05 アスモ株式会社 車両ワイパ装置
WO2017170282A1 (fr) * 2016-03-31 2017-10-05 アスモ 株式会社 Dispositif d'essuie-glace pour véhicules

Also Published As

Publication number Publication date
DE4444066B4 (de) 2007-07-19
DE4444066A1 (de) 1996-06-13

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