DE4116791A1 - Windscreen wiper motor with gearbox - have separate casings joined by spray applied to secured band - Google Patents

Windscreen wiper motor with gearbox - have separate casings joined by spray applied to secured band

Info

Publication number
DE4116791A1
DE4116791A1 DE19914116791 DE4116791A DE4116791A1 DE 4116791 A1 DE4116791 A1 DE 4116791A1 DE 19914116791 DE19914116791 DE 19914116791 DE 4116791 A DE4116791 A DE 4116791A DE 4116791 A1 DE4116791 A1 DE 4116791A1
Authority
DE
Germany
Prior art keywords
motor
gearbox
windscreen wiper
gear
housing
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Withdrawn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
DE19914116791
Other languages
German (de)
Inventor
Peter Fein
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.)
ITT Automotive Europe GmbH
Original Assignee
SWF Auto Electric 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 SWF Auto Electric GmbH filed Critical SWF Auto Electric GmbH
Priority to DE19914116791 priority Critical patent/DE4116791A1/en
Publication of DE4116791A1 publication Critical patent/DE4116791A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/039—Gearboxes for accommodating worm gears
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
    • H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/03—Machines characterised by thrust bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators

Abstract

The vehicle electric windscreen wiper drive comprises a motor (5) within a motor casing (1) and an associated worm (7) and gear (8) drive located within a gearbox casing (3). The motor and gearbox casings are secured together by spraying a hot plastics substance such as polyamide or similar over flanges (2,4) located around the edge of the motor and gearbox mating faces. The plastics material forms a U-cross-section securing band (10) with an overall thickness approximately a third of the band width. This securing band contracts around the housing flanges as the plastics cools and hardens, exerting a compressive force that acts to secure the two items together. USE/ADVANTAGE - Cheap, simple method of securing windscreen wiper motors and gearboxes together.

Description

Die Erfindung bezieht sich auf einen Motor mit einem angesetzten Getriebe, insbesondere zum Antrieb eines Wischerarms einer Scheibenwischeranlage eines Kraftfahrzeugs.The invention relates to an engine with a attached gear, especially for driving a Wiper arms of a windshield wiper system of a motor vehicle.

Den Motor und das Getriebe hat man bislang dadurch miteinander verbunden, daß man in eine entsprechende Aufnahme ein Verbindungselement mit einem Gewinde eingesteckt hat, in das dann anschließend eine Schraube eingedreht wurde um dadurch die beiden Baueinheiten fest miteinander zu verbinden. Bekannt sind auch einzelne Verbindungsklammern, welche aber ebenfalls eine Aufnahme bspw. im Motorgehäuse erfordern und eine Spannschraube.So far, the engine and the gearbox have been linked together connected that one in a corresponding recording Has inserted connector with a thread in the then a screw was then screwed in to thereby  to firmly connect the two units. Known are also individual connecting brackets, but they are also require a recording, for example, in the motor housing and a Clamping screw.

Es liegt die Aufgabe vor, die Verbindung eines solchen Motors mit dem angesetzten Getriebe zu vereinfachen und dadurch die Kosten zu senken.The task is to connect such an engine to simplify with the attached gear and thereby the Reduce costs.

Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß der Motor mit angesetztem Getriebe, insbesondere zum Antrieb eines Wischerarms einer Scheibenwischeranlage eines Kraftfahrzeugs, dadurch gekennzeichnet ist, daß die einander zugeordneten Enden des Motor- und des Getriebegehäuses je einen redial vorstehenden Außenbund etwa gleichen Umfangs aufweisen und diese Bunde von einem angespritzten, im Querschnitt bogen- oder etwa U-förmigen, die Bunde außen rings umfassenden Haltering aus Kunststoff umgriffen sind. Der Kunststoffring gewährleistet ein gleichmäßiges Zusammenpressen der beiden Außenbunde und ein rüttelfestes Halten des Getriebes am Motor bzw. umgekehrt. Ein weiterer Vorteil liegt darin, daß aufgrund des dicht anliegenden Kunststoffrings die Verbindung zwischen Motor und Getriebe staub- und flüssigkeitsdicht ist.To solve this problem, the invention proposes that the engine with attached gear, especially for Drive of a wiper arm of a wiper system Motor vehicle, characterized in that the one another assigned ends of the motor and the transmission housing each a redially protruding outer collar of approximately the same size have and these bundles of a molded, in Cross-section arched or roughly U-shaped, the bundles outside on the outside comprehensive retaining ring made of plastic. The Plastic ring ensures an even pressing together of the two outer frets and a shake-proof hold of the Gearbox on the engine or vice versa. Another advantage lies in that due to the tight-fitting plastic ring Connection between engine and gearbox dust and is liquid-tight.

Besondere Aufnahmen am Getriebegehäuse oder Motorgehäuse sind entbehrlich. Es werden auch keine Schrauben oder sonstige lose Teile benötigt. Außerdem ist es leicht möglich auf diese Art und Weise außen glatte Konturen zu schaffen.There are special mounts on the gearbox or motor housing dispensable. There are also no screws or other loose  Parts needed. It is also easily possible in this way and way to create smooth contours on the outside.

Eine Weiterbildung der Erfindung sieht vor, daß in Achsrichtung des Gehäuses gesehen, die Dicke jedes U-Schenkels etwa einem Drittel der gesamten Halteringdicke entspricht. Man erhält dadurch eine Materialanhäufung an den beiden U-Schenkeln, die bspw. doppelt so groß sein kann, wie am U-Quersteg. Dies läßt sich bei Verwendung eines geeigneten Kunststoffs zur Erzielung eines besonderen Effekts sehr vorteilhaft ausnutzen.A further development of the invention provides that in Axial direction of the housing seen, the thickness of each U-leg corresponds to about a third of the total thickness of the retaining ring. Man receives a material accumulation on the two U-legs, which can for example be twice as large as on U cross bar. This can be done using a suitable one Plastic to achieve a very special effect take advantage of.

In dieser Richtung zielt eine weitere Ausgestaltung der Erfindung, welche dadurch gekennzeichnet ist, daß das Kunststoffmaterial Polyamid od. dgl. mit hoher Kontraktion und Quellung ist. Bei der Abkühlung dieses warm auf den Verbindungsbereich aufgesprizten Kunststoffmaterials entsteht nämlich eine Kontraktion, die sich in einer Axialkraft auswirkt, welche die beiden Außenbunde fest aneinanderpreßt und dadurch eine gute Abdichtung und auch einen festen Halt des Kunststoffrings an der Verbindungsstelle gewährleistet.A further development of the Invention, which is characterized in that the Plastic material polyamide or the like with high contraction and Swelling is. When cooling this warm on the Connection area sprayed on plastic material is created namely a contraction that is in an axial force affects, which presses the two outer cuffs tightly together and therefore a good seal and also a firm hold guaranteed of the plastic ring at the connection point.

Die Erfindung wird nachstehend anhand der Zeichnung näher erläutert. Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung anhand einer teilweise in axialer Längsrichtung geschnittenen Draufsicht auf einen Motor mit angesetztem Getriebe. The invention will now be described with reference to the drawing explained. The drawing shows an embodiment of the Invention based on a partially in the axial longitudinal direction sectioned top view of an engine with attached Transmission.  

Das Motorgehäuse 1 besitzt an seinem getriebeseitigen Ende einen radial vorstehenden Außenbund 2. Am motorseitigen Ende des Getriebegehäuses 3 ist ein Außenbund 4 vorzugsweise gleicher Größe und Form vorgesehen. Das Motorgehäuse 1 nimmt in bekannter Weise den elektrischen Antriebsmotor 5 auf, dessen Welle 6 eine Schnecke 7 trägt und antreibt. Diese arbeitet mit einem Schneckenrad 8 im Getriebegehäuse 3 zusammen. Die Konstruktion ist im einzelnen bekannt und bedarf daher keiner näheren Erläuterung. Dasselbe gilt für die Stromversorgung des Motors 6 und der notwendigen Entstörmittel über eine elektrische Anschlußeinheit 9.The motor housing 1 has a radially protruding outer collar 2 at its gear end. An outer collar 4, preferably of the same size and shape, is provided at the motor-side end of the transmission housing 3 . The motor housing 1 accommodates the electric drive motor 5 in a known manner, the shaft 6 of which carries and drives a worm 7 . This works together with a worm wheel 8 in the gear housing 3 . The construction is known in detail and therefore requires no further explanation. The same applies to the power supply to the motor 6 and the necessary interference suppression means via an electrical connection unit 9 .

Um das Motorgehäuse 1 mit dem Getriebegehäuse 3 sicher, fest und dauerhaft zu verbinden, werden die beiden aneinander anliegenden Außenbunde 2 und 4 mit Kunststoff umspritzt. Dieser bildet nach dem Erkalten und Aushärten beim Ausführungsbeispiel einen im Querschnitt U-förmigen Haltering 10, der aufgrund innerer Spannungen, die beim Aushärten und Erkalten entstehen, die beiden Außenbunde 2 und 4 fest gegeneinander zieht. Hierzu ist es auch notwendig, daß die beiden U-Schenkel 11 und 12 gegenüber dem U-Quersteg 13 relativ dickwandig sind.In order to connect the motor housing 1 to the gear housing 3 securely, firmly and permanently, the two outer collars 2 and 4 which are in contact with one another are extrusion-coated with plastic. After cooling and hardening in the exemplary embodiment, this forms a cross-sectionally U-shaped retaining ring 10 , which pulls the two outer collars 2 and 4 firmly against one another due to internal stresses that arise during hardening and cooling. For this purpose, it is also necessary that the two U-legs 11 and 12 are relatively thick-walled in relation to the U-crosspiece 13 .

Beim Ausführungsbeispiel hat der Haltering 10 außen einen kreiszylindrischen Mantel 14. Er entspricht der Höhlung einer nicht gezeichneten Spritzform, welche die beiden Außenbunde 2 und 4 mit radialem Abstand umgibt. Durch entsprechende Formgebung des Motor- und des Getriebegehäuses kann man erreichen, daß dieser Außenmantel 14 über die Außenkontur des Motorgehäuses 1 nicht oder nicht wesentlich vorsteht. Hierzu ist es auch erforderlich, daß zumindest am Motorgehäuse eine nutartige Aufnahme 15 vorgesehen ist, welche den U-Schenkel 12 aufnehmen kann und vorzugsweise auch dessen Form zumindest mitbestimmt. Es ist ohne weiteres möglich den in der Zeichnung dargestellten Spaltraum 17 auch noch mit Kunststoff zu füllen, d. h. den U-Schenkel 12 entsprechend dicker auszubilden. Am Getriebegehäuse 3 dagegen kann man den Außenbund 4 vorstehend ausbilden, so daß er leicht in Richtung der Welle 6 entformbar ist.In the exemplary embodiment, the retaining ring 10 has a circular cylindrical jacket 14 on the outside. It corresponds to the cavity of an injection mold, not shown, which surrounds the two outer collars 2 and 4 at a radial distance. By appropriate shaping of the motor and the transmission housing, it can be achieved that this outer jacket 14 does not protrude or does not protrude significantly beyond the outer contour of the motor housing 1 . For this purpose, it is also necessary that a groove-like receptacle 15 is provided at least on the motor housing, which can accommodate the U-leg 12 and preferably also at least also determines its shape. It is readily possible to fill the gap space 17 shown in the drawing with plastic, ie to make the U-leg 12 correspondingly thicker. On the gear housing 3, on the other hand, the outer collar 4 can be formed so that it can be easily removed from the mold in the direction of the shaft 6 .

Claims (5)

1. Motor mit angesetztem Getriebe, insbesondere zum Antrieb eines Wischerarms einer Scheibenwischeranlage eines Kraftfahrzeugs, dadurch gekennzeichnet, daß die einander zugeordneten Enden des Motorgehäuses (1) und des Getriebegehäuses (3) je einen radial vorstehenden Außenbund (2 bzw. 4) etwa gleichen Umfangs aufweisen und diese Bunde von einem angespritzten im Querschnitt bogen­ oder etwa U-förmigen, die Bunde außen rings umfassenden Haltering (10) aus Kunststoff umgriffen sind.1. Motor with attached gear, in particular for driving a wiper arm of a windshield wiper system of a motor vehicle, characterized in that the mutually associated ends of the motor housing ( 1 ) and the gear housing ( 3 ) each have a radially projecting outer collar ( 2 or 4 ) of approximately the same extent and these bundles are encompassed by an injection-molded, cross-sectionally curved or approximately U-shaped retaining ring ( 10 ) made of plastic which surrounds the bundles on the outside. 2. Motor mit Getriebe nach Anspruch 1, dadurch gekennzeichnet, daß in Achsrichtung des Motorgehäuses (1) gesehen, die Dicke jedes U-Schenkels (11 bzw. 12) etwa einem Drittel der gesamten Halteringdicke entspricht.2. Motor with gear according to claim 1, characterized in that seen in the axial direction of the motor housing ( 1 ), the thickness of each U-leg ( 11 or 12 ) corresponds to approximately one third of the total retaining ring thickness. 3. Motor mit Getriebe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Kunststoffmaterial Polyamid od. dgl. mit hoher Kontraktion und Quellung ist.3. Motor with gear according to claim 1 or 2, characterized characterized in that the plastic material polyamide or the like. with high contraction and swelling. 4. Motor mit Getriebe nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Außenseite des Halterings (10) mit der Außenseite des Motorgehäuses (1) fluchtet. 4. Motor with transmission according to claim 1, 2 or 3, characterized in that the outside of the retaining ring ( 10 ) is aligned with the outside of the motor housing ( 1 ). 5. Motor mit Getriebe nach einem vorhergehenden Anspruch, dadurch gekennzeichnet, daß das einen Außenbund (2) aufweisende Ende des Motorgehäuses (1) nach innen verformt ist, so daß eine nutartige Aufnahme (15) für Abschnitt (12) des Halterings (10) vorhanden ist.5. Motor with gear according to any preceding claim, characterized in that the outer collar ( 2 ) having the end of the motor housing ( 1 ) is deformed inwards, so that a groove-like receptacle ( 15 ) for section ( 12 ) of the retaining ring ( 10 ) is available.
DE19914116791 1991-05-23 1991-05-23 Windscreen wiper motor with gearbox - have separate casings joined by spray applied to secured band Withdrawn DE4116791A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914116791 DE4116791A1 (en) 1991-05-23 1991-05-23 Windscreen wiper motor with gearbox - have separate casings joined by spray applied to secured band

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914116791 DE4116791A1 (en) 1991-05-23 1991-05-23 Windscreen wiper motor with gearbox - have separate casings joined by spray applied to secured band

Publications (1)

Publication Number Publication Date
DE4116791A1 true DE4116791A1 (en) 1992-11-26

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ID=6432225

Family Applications (1)

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DE19914116791 Withdrawn DE4116791A1 (en) 1991-05-23 1991-05-23 Windscreen wiper motor with gearbox - have separate casings joined by spray applied to secured band

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Country Link
DE (1) DE4116791A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603083A1 (en) * 1992-12-17 1994-06-22 Valeo Systemes D'essuyage Drive unit for a windscreen wiper of a vehicle
EP0868009A1 (en) * 1997-03-25 1998-09-30 Robert Bosch Gmbh Electromotor-worm reduction gear assembly
WO2007000378A1 (en) * 2005-06-29 2007-01-04 Robert Bosch Gmbh Electric motor and gearing/drive unit for actuators in a motor vehicle
WO2018086758A1 (en) * 2016-11-11 2018-05-17 Sew-Eurodrive Gmbh & Co. Kg Transmission comprising a first housing part and a second housing part
DE102018208479A1 (en) * 2018-05-29 2019-12-05 Robert Bosch Gmbh Pol housing of an electric motor, transmission drive unit comprising such and method for producing such for actuators in the motor vehicle

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699758A1 (en) * 1992-12-17 1994-06-24 Valeo Systemes Dessuyage Drive unit for a motor vehicle wiper.
EP0603083A1 (en) * 1992-12-17 1994-06-22 Valeo Systemes D'essuyage Drive unit for a windscreen wiper of a vehicle
DE19712361B4 (en) * 1997-03-25 2009-07-09 Robert Bosch Gmbh Method for adjusting an axial bearing of an aggregate
EP0868009A1 (en) * 1997-03-25 1998-09-30 Robert Bosch Gmbh Electromotor-worm reduction gear assembly
RU2447568C2 (en) * 2005-06-29 2012-04-10 Роберт Бош Гмбх Electric motor and gearbox drive unit for vehicle servos
JP2008545370A (en) * 2005-06-29 2008-12-11 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Electric motor and transmission drive unit for adjusting drive in automobile
US7839037B2 (en) 2005-06-29 2010-11-23 Robert Bosch Gmbh Electric motor housing with transmission drive unit interface
JP4809430B2 (en) * 2005-06-29 2011-11-09 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Electric motor and transmission drive unit for adjusting drive in automobile
WO2007000378A1 (en) * 2005-06-29 2007-01-04 Robert Bosch Gmbh Electric motor and gearing/drive unit for actuators in a motor vehicle
WO2018086758A1 (en) * 2016-11-11 2018-05-17 Sew-Eurodrive Gmbh & Co. Kg Transmission comprising a first housing part and a second housing part
CN109952456A (en) * 2016-11-11 2019-06-28 索尤若驱动有限及两合公司 Retarder with first shell part and second shell part
US20200191252A1 (en) * 2016-11-11 2020-06-18 Sew-Eurodrive Gmbh & Co. Kg Transmission including a first housing part and a second housing part
US10830331B2 (en) 2016-11-11 2020-11-10 Sew-Eurodrive Gmbh & Co. Kg Transmission including a first housing part and a second housing part
US11137058B2 (en) 2016-11-11 2021-10-05 Sew-Eurodrive Gmbh & Co. Kg Transmission including a first housing part and a second housing part
CN109952456B (en) * 2016-11-11 2022-07-08 索尤若驱动有限及两合公司 Speed reducer with first and second housing parts
DE102018208479A1 (en) * 2018-05-29 2019-12-05 Robert Bosch Gmbh Pol housing of an electric motor, transmission drive unit comprising such and method for producing such for actuators in the motor vehicle

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: ITT AUTOMOTIVE EUROPE GMBH, 60488 FRANKFURT, DE

8141 Disposal/no request for examination