EP0575633B1 - Actuating mechanism with a geared motor with positive and automatic interlocking of position - Google Patents

Actuating mechanism with a geared motor with positive and automatic interlocking of position Download PDF

Info

Publication number
EP0575633B1
EP0575633B1 EP92108541A EP92108541A EP0575633B1 EP 0575633 B1 EP0575633 B1 EP 0575633B1 EP 92108541 A EP92108541 A EP 92108541A EP 92108541 A EP92108541 A EP 92108541A EP 0575633 B1 EP0575633 B1 EP 0575633B1
Authority
EP
European Patent Office
Prior art keywords
pawl
retaining
gear
drive
cam
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 - Lifetime
Application number
EP92108541A
Other languages
German (de)
French (fr)
Other versions
EP0575633A1 (en
Inventor
Peter Dipl -Ing. Michel (Fh)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE92108541T priority Critical patent/DE59200078D1/en
Priority to EP92108541A priority patent/EP0575633B1/en
Priority to US08/063,386 priority patent/US5404975A/en
Publication of EP0575633A1 publication Critical patent/EP0575633A1/en
Application granted granted Critical
Publication of EP0575633B1 publication Critical patent/EP0575633B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
    • E05F11/50—Crank gear with clutches or retaining brakes, for operating window mechanisms
    • E05F11/505—Crank gear with clutches or retaining brakes, for operating window mechanisms for vehicle windows
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19698—Spiral
    • Y10T74/19828—Worm

Definitions

  • Actuator with a geared motor with a position that can be fixed by positive self-locking.
  • the invention relates to an adjustment drive with a geared motor with a position that can be fixed by positive self-locking according to claim 1; an adjustment drive with the features a) to c) of claim 1 is known from DE-A1-29 11 024.
  • a pawl is pivotably mounted in the driver under spring pressure in such a way that it is on the one hand both in the case of a motor-driven and also a drive-side drive
  • the sprocket engages, whereby during motor operation in one direction of rotation (lifting) the pawl in the form of a ratchet slides over the teeth of the sprocket without inhibition and in the other direction of rotation (lowering) it is released against the spring pressure by a stop cam or in the case of an output side Drive in this direction of rotation (lowering) is pressed into the ring gear by the spring pressure in the sense of a positive self-locking.
  • a tangential play between the driver on the one hand and the worm wheel on the other hand is only possible within the framework of the elastic flexibility of the damper element interposed in the driver between the worm wheel and the driver.
  • a drive connection, on the other hand, which is equally compact, but also completely free-latched in all motor operating modes and thus not subject to noise, between the worm wheel on the one hand and via the driver of the output shaft on the other hand is possible according to the invention by the adjustment drive according to the features of claim 1; advantageous embodiments of this invention are the subject of the dependent claims.
  • EP-A1-0 478 931 discloses an adjustment drive with adjustment positions which can be fixed by self-locking, in particular a motor vehicle window lift drive, the output of which is in drive connection in a gear housing with a worm wheel driven by a worm shaft via a driver coaxially mounted with it
  • a driver coaxially mounted with it
  • Such a self-locking works only non-positively and can possibly do not guarantee sufficient blocking of the drive in extreme load cases.
  • the grinding resistance between the slip ring and the gear housing is advantageously chosen such that, on the one hand, the drive in one or the other direction is as unrestricted as possible in the case of a motor drive, but with sufficient drive resistance for pivoting the pawl out of it in the other direction of rotation when the drive is driven Sprocket non-contact rest position is guaranteed in its positive self-locking locking to the sprocket;
  • Such a bias for the slip ring is achieved in a particularly simple manner in that it rests against the gear housing from a material and / or shape residual stress Plastic ring is formed, wherein preferably the first free-link cams or second pawl cams are integrally molded onto the plastic ring.
  • a worm wheel 2 is rotatably mounted about a gear axis 1.2, the external teeth 2.3 of which mesh with a worm shaft 7, which is part of a rotor shaft of an extended commutator motor, not shown here, which is flanged to the gear housing 1 is trained.
  • the gear housing 1 is closed on its open side by a gear housing cover 1.1.
  • the worm wheel 2 is interposed by an attenuator 5 in a tangentially elastic rotary driving connection with a driver 3, which is also rotatably mounted on the gear axis 1.2, with a drive shaft inner pinion 3.3, which is led out on the output side through the worm wheel, which is tangentially movable on the outside, and through a bore in the gear cover 1.1.
  • the gear housing cover 1.1 is sealed with the interposition of sealing rings 1.11 and 1.12 both against the pot edge of the gear housing 1 and against the outer circumference of the output shaft inner pinion 3.3.
  • the worm wheel 2 which is preferably injection-molded from plastic, engages with corresponding radial grooves of a damping member 5 with correspondingly integrally molded radial driving webs 2.1.
  • the driver engages with tangential driving elongated holes 5.1 with integral radial overhanging cams 3.1 such that the tangential length of the elongated holes 5.1 results in tangential play in the rotational driving is possible between the worm wheel 2 on the one hand and the driver on the other hand beyond the tangential play of the elastic compliance of the damping member 5.
  • a plastic slip ring 4 is mounted axially below the ring gear 1.3 in the sense of a minimum grinding pressure, that it rests with abutment shoulders 4.3 on the grinding surface of the gearbox housing 1 and is pressed radially against the grinding surface in the gearbox housing 1 by prestressing spring bars 4.4 connecting the abutment shoulders 4.3 when the slip ring 4 is pushed into the gearbox housing 1.
  • pawls 6 with journals 6.1 in pawl bearing receptacles 3.2 of the driver 3 are pivoted such that the connecting line between the radial end point of the free end of the pawl 6 and its bearing point in the driver 3, on the one hand, and between the bearing point and the gear axis 1.2, on the other hand, run at an obtuse angle to the direct connecting line between the free end of the pawl 6 and the gear axis 1.2.
  • the slip ring 4 each has a first free-latch cam 4.1 - seen in the direction of rotation n 1 - in front of the pawl 6 and in the vicinity of its contact shoulder 4.3 and a second pawl cam 4.2 behind the pawl 6. Viewed in the direction of rotation n 1, an axial stop cam 2.2 of the worm wheel 2 also projects into the axial region of the first free-latch cam 4.1.
  • the worm wheel 2 In motor operation for lifting the window pane, the worm wheel 2 is driven via the worm shaft 7 in one direction of rotation n 1.
  • the worm wheel 2 is in contact with the damping member 5 and after tangential stop of the driving cams 3.1 of the driver 3 via its driving webs 2.1 engaging in a form-fitting manner in corresponding grooves of the damping member 5 one or the other end face of the elongated holes 5.1 also in elastically damped rotary driving with the driver 3.
  • the driver 3 is subsequently rotated in one direction of rotation n 1
  • the pawl 6 comes into contact with the first free-latch cam 4.1 so that when fully released from the Gear ring 1.3 of the slip ring 4 is also moved over the first free-click cam 4.1.
  • the attenuator 5 is again carried tangentially by the worm wheel 2 via the driving webs 2.1.
  • the driving cams 3.1 of the driver 3 strike the end face of the elongated holes 5.1 and thus set the driver 3 in motion in a cushioned manner
  • the stop cams 2.2 formed axially on the worm wheel 2 come into contact with the first free-click cams 4.1 of the Slip ring 4 that this is initially moved by a small tangential angle in the other direction of rotation n2 and thereby ensures free locking of the pawl 6.
  • the driver 3 executes a relative movement to the worm wheel 2 in such a way that, before tangential entrainment of the worm wheel 2, the previously pivoted free end of the pawl 6 comes into contact with the second pawl cam 4.2 of the slip ring 4. Due to the grinding resistance between the slip ring 4 and the gear housing 1 which receives this under slight radial pressure, the pawl 6 is brought into engagement with the ring gear 1.3 when the driver 3 moves in the other direction of rotation n 2.
  • the pawl 6 As soon as the free end of the pawl 6 comes into contact with the ring gear 1.3, the pawl 6 is self-lockingly fixed in its engagement position to the ring gear 1.3 with still further tangential movement of the driver 3 in the other direction of rotation n 2 and thus the pawl cam 4.2 relieved.
  • the grinding resistance between the slip ring 4 and the gear housing 1 is chosen such that, on the one hand, when driving the motor drive in one or the other direction of rotation n 1 or n 2, as resistance-free as possible, however, with the drive-side drive in the other direction of rotation n 2, there is sufficient impact resistance for pivoting the Pawl 6 is guaranteed in its positive self-locking latching in the ring gear 1.3.
  • the worm wheel or the driver or the pawls including their bearings, their entrainment or their catches are designed in the sense of an axial plug-in assembly technique.

Landscapes

  • Gear Transmission (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

Verstellantrieb mit einem Getriebemotor mit durch formschlüssige Selbsthemmung fixierbarer Stellposition.Actuator with a geared motor with a position that can be fixed by positive self-locking.

Die Erfindung bezieht sich auf einen Verstellantrieb mit einem Getriebemotor mit durch formschlüssige Selbsthemmung fixierbarer Stellposition gemäß Anspruch 1; ein Verstellantrieb mit den Merkmalen a) bis c) des Anspruchs 1 ist durch die DE-A1-29 11 024 bekannt.The invention relates to an adjustment drive with a geared motor with a position that can be fixed by positive self-locking according to claim 1; an adjustment drive with the features a) to c) of claim 1 is known from DE-A1-29 11 024.

Bei der durch die DE-A1-29 11 024 bekannten Antriebsvorrichtung zum Verstellen von Fensterscheiben, Schiebedächern und dgl.von Kraftfahrzeugen ist in dem Mitnehmer eine Sperrklinke derart unter Federdruck schwenkbar gelagert, daß sie einerseits sowohl bei motorischem antriebsseitigen als auch bei abtriebsseitigen Antrieb in den Zahnkranz einrastet, wobei beim motorischen Betrieb in der einen Drehrichtung (Heben) die Sperrklinke in Form einer Ratsche ohne Hemmung über die Zähne des Zahnkranzes gleitet und in der anderen Drehrichtung (Senken) durch einen Anschlag-Nocken entgegen dem Federdruck freigeklinkt bzw. bei einem abtriebsseitigen Antrieb in dieser Drehrichtung (Senken) durch den Federdruck im Sinne einer formschlüssigen Selbsthemmung in den Zahnkranz gedrückt wird. Ein Tangentialspiel zwischen dem Mitnehmer einerseits und dem Schneckenrad andererseits ist nur im Rahmen der elastischen Nachgiebigkeit des in der Mitnahme zwischen dem Schneckenrad und dem Mitnehmer zwischengeschalteten Dämpferelement möglich.In the drive device known from DE-A1-29 11 024 for adjusting window panes, sunroofs and the like of motor vehicles, a pawl is pivotably mounted in the driver under spring pressure in such a way that it is on the one hand both in the case of a motor-driven and also a drive-side drive The sprocket engages, whereby during motor operation in one direction of rotation (lifting) the pawl in the form of a ratchet slides over the teeth of the sprocket without inhibition and in the other direction of rotation (lowering) it is released against the spring pressure by a stop cam or in the case of an output side Drive in this direction of rotation (lowering) is pressed into the ring gear by the spring pressure in the sense of a positive self-locking. A tangential play between the driver on the one hand and the worm wheel on the other hand is only possible within the framework of the elastic flexibility of the damper element interposed in the driver between the worm wheel and the driver.

Eine demgegenüber gleich kompakte, jedoch auch in sämtlichen motorischen Betriebsarten vollständig freigeklinkte und somit nicht geräuschbehaftete Antriebsverbindung zwischen dem Schneckenrad einerseits und über den Mitnehmer der Abtriebswelle andererseits ist erfindungsgemäß durch den Verstellantrieb gemäß den Merkmalen des Anspruchs 1 möglich; vorteilhafte Ausgestaltungen dieser Erfindung sind jeweils Gegenstand der Unteransprüche.A drive connection, on the other hand, which is equally compact, but also completely free-latched in all motor operating modes and thus not subject to noise, between the worm wheel on the one hand and via the driver of the output shaft on the other hand is possible according to the invention by the adjustment drive according to the features of claim 1; advantageous embodiments of this invention are the subject of the dependent claims.

Durch die EP-A1-0 478 931 ist ein Verstellantrieb mit durch Selbsthemmung fixierbaren Verstellpositionen, insbesondere ein motorischer Kraftfahrzeug-Fensterheberantrieb, bekannt, dessen Abtrieb in einem Getriebegehäuse mit einem von einer Schneckenwelle angetriebenen Schneckenrad über einen dazu koaxial gelagerten Mitnehmer in Antriebsverbindung steht, wobei je Drehrichtung zumindest ein, mit seinem einen Ende in dem zum Schneckenrad koaxial gelagerten Mitnehmer derart schwenkbar gehaltener Schleifbremshebel vorgesehen ist, daß er mit seinem anderen freien Ende bei schneckenwellenseitigem Antrieb über eine zu dem Mitnehmer koaxiale getriebegehäusesseitige Bremsfläche jeweils von dem Mitnehmer schleifend mitnehmbar und bei entgegengesetzten abtriebsseitigen Antrieb gegen die Bremsfläche selbstverstärkend selbsthemmend anlegbar ist; eine derartige Selbsthemmung arbeitet nur kraftschlüssig und kann u.U. in extremen Belastungsfällen nicht eine hinreichende Blockierung des Antriebs gewährleisten.EP-A1-0 478 931 discloses an adjustment drive with adjustment positions which can be fixed by self-locking, in particular a motor vehicle window lift drive, the output of which is in drive connection in a gear housing with a worm wheel driven by a worm shaft via a driver coaxially mounted with it For each direction of rotation at least one, with its one end in the coaxially mounted driver to the worm wheel pivotally held brake lever is provided that it has its other free end with worm shaft drive via a coaxial to the driver gear surface on the brake housing surface can be dragged by the driver and at opposite output-side drive against the braking surface can be applied self-reinforcing self-locking; Such a self-locking works only non-positively and can possibly do not guarantee sufficient blocking of the drive in extreme load cases.

Bei dem erfindungsgemäßen Verstellantrieb ist gewährleistet, daß die im Fall einer gewünschten Selbsthemmung in dem Zahnkranz formschlüssig aufgrund ihrer Kniehebel-Wirkung fixierten Sperrklinken durch den Schleifring in einer Ruhestellung vollständig freigeklinkt und somit berührungslos zum Zahnkranz zurückgezogen und im Fall eine gewünschten Selbsthemmung durch die Relativbewegung zwischen dem Mitnehmer und dem Schleifring in ihre selbsthemmende Einklink-Arbeitsposition unter Verzicht auf alternde Federelemente gebracht werden können.In the case of the adjustment drive according to the invention, it is ensured that the pawls which are positively fixed in the toothed ring in the case of a desired self-locking in the toothed ring effect due to their toggle lever action are completely released by the slip ring in a rest position and thus withdrawn without contact to the ring gear and in the case of a desired self-locking by the relative movement between the Carrier and the slip ring can be brought into their self-locking engagement position without the need for aging spring elements.

Der Schleifwiderstand zwischen dem Schleifring und dem Getriebegehäuse ist in vorteilhafter Weise derart gewählt, daß einerseits bei motorischem Antrieb seine Mitnahme in der einen oder anderen Richtung möglichst widerstandslos gegeben, jedoch bei abtriebsseitigem Antrieb in der anderen Drehrichtung ein hinreichender Anschlagwiderstand zur Verschwenkung der Sperrklinke aus ihrer zum Zahnkranz berührungslosen Ruhestellung in ihre formschlüssig selbsthemmende Verrastung zum Zahnkranz gewährleistet ist; in besonders einfacher Weise wird eine derartige Vorspannung für den Schleifring dadurch erreicht, daß er aus einem unter Material- und/oder Formeigenspannung gegen das Getriebegehäuse anliegenden Kunststoffring gebildet ist, wobei vorzugsweise an den Kunststoffring die ersten Freilink-Nocken bzw. zweiten Sperrklink-Nocken einstückig angespritzt sind.The grinding resistance between the slip ring and the gear housing is advantageously chosen such that, on the one hand, the drive in one or the other direction is as unrestricted as possible in the case of a motor drive, but with sufficient drive resistance for pivoting the pawl out of it in the other direction of rotation when the drive is driven Sprocket non-contact rest position is guaranteed in its positive self-locking locking to the sprocket; Such a bias for the slip ring is achieved in a particularly simple manner in that it rests against the gear housing from a material and / or shape residual stress Plastic ring is formed, wherein preferably the first free-link cams or second pawl cams are integrally molded onto the plastic ring.

Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung gemäß Merkmalen der Unteransprüche werden im folgenden anhand eines schematisch dargestellten Ausführungsbeispiels in der Zeichnung näher erläutert; darin zeigen

FIG 1
in einem axial Längsschnitt gemäß Schnittverlauf I-I in FIG 3 den Getriebeteil mit integrierter Selbsthemmung für einen Kraftfahrzeug-Fensterheberantrieb
FIG 2
die axiale abtriebsseitige Draufsicht auf den Getriebeteil gemäß FIG 1 mit teilweise aufgeschnittenem Schneckenrad bzw. Mitnehmer mit in Freiklink- bzw. Ruhestellung befindlichen Sperrklinken
FIG 3
die Anordnung gemäß FIG 2 jedoch mit in Einklink- bzw. Selbsthemmungsstellung formschlüssig fixierten Sperrklinken.
The invention and further advantageous embodiments of the invention according to the features of the subclaims are explained in more detail below with reference to a schematically illustrated embodiment in the drawing; show in it
FIG. 1
in an axial longitudinal section according to section II in FIG 3, the gear part with integrated self-locking for a motor vehicle window regulator drive
FIG 2
the axial output-side top view of the gear part according to FIG 1 with partially cut worm wheel or driver with pawls in free release or rest position
FIG 3
the arrangement according to FIG 2, however, with pawls positively fixed in the latching or self-locking position.

In einem topfförmigen Getriebegehäuse 1 eines Kraftfahrzeug-Fensterhebers ist ein Schneckenrad 2 um eine Getriebeachse 1.2 drehbar gelagert, dessen Außenzahnung 2.3 mit einer Schneckenwelle 7 kämmt, die Teil einer in das Getriebegehäuse 1 verlängerten Rotorwelle eines hier nicht dargestellten, an das Getriebe gehäuse 1 angeflanschten Kommutatormotors ausgebildet ist. Das Getriebegehäuse 1 wird an seiner offenen Seite durch einen Getriebegehäusedeckel 1.1 abgeschlossen.In a pot-shaped gear housing 1 of a motor vehicle window lifter, a worm wheel 2 is rotatably mounted about a gear axis 1.2, the external teeth 2.3 of which mesh with a worm shaft 7, which is part of a rotor shaft of an extended commutator motor, not shown here, which is flanged to the gear housing 1 is trained. The gear housing 1 is closed on its open side by a gear housing cover 1.1.

Das Schneckenrad 2 steht unter Zwischenschaltung eines Dämpfungsgliedes 5 in tangential elastischer Drehmitnahmeverbindung mit einem ebenfalls auf der Getriebeachse 1.2 drehbar gelagerten Mitnehmer 3 mit einem Antriebswellen-Innenritzel 3.3, das durch das außen tangential beweglich aufliegende Schneckenrad und durch eine Bohrung des Getriebedeckels 1.1 abtriebsseitig herausgeführt ist. Der Getriebegehäusedeckel 1.1 ist unter Zwischenlage von Dichtringen 1.11 bzw. 1.12 sowohl gegenüber dem Topfrand des Getriebegehäuses 1 als auch gegenüber dem Außenumfang des Abtriebswellen-Innenritzels 3.3 abgedichtet.The worm wheel 2 is interposed by an attenuator 5 in a tangentially elastic rotary driving connection with a driver 3, which is also rotatably mounted on the gear axis 1.2, with a drive shaft inner pinion 3.3, which is led out on the output side through the worm wheel, which is tangentially movable on the outside, and through a bore in the gear cover 1.1. The gear housing cover 1.1 is sealed with the interposition of sealing rings 1.11 and 1.12 both against the pot edge of the gear housing 1 and against the outer circumference of the output shaft inner pinion 3.3.

Zur tangential elastisch nachgiebigen und somit anschlagdämpfenden Drehmitnahme zwischen dem Schneckenrad 2 einerseits und dem Mitnehmer 3 andererseits greift das vorzugsweise aus Kunststoff gespritzte Schneckenrad 2 mit über seinen Umfang verteilt einstückig angegossenen radialen Mitnahme-Stegen 2.1 in korrespondierende radiale Nuten eines Dämpfungsgliedes 5 formschlüssig ein. Zur Drehmitnahme zwischen dem Dämpfungsglied 5 und dem ebenfalls vorzugsweise aus Kunststoff gespritzten Mitnehmer 3 greift dieser mit über seinen Umfang einstückig angeformten radialen Mitnehmer-Nocken 3.1 in tangentiale Mitnehmer-Langlöcher 5.1 derart ein, daß durch die tangentiale Länge der Langlöcher 5.1 ein Tangentialspiel in der Drehmitnahme zwischen dem Schneckenrad 2 einerseits und dem Mitnehmer andererseits über das Tangentialspiel der elastischen Nachgiebigkeit des Dämpfungsglieds 5 hinaus möglich ist.For tangentially elastically flexible and thus stop-damping rotary driving between the worm wheel 2 on the one hand and the driver 3 on the other hand, the worm wheel 2, which is preferably injection-molded from plastic, engages with corresponding radial grooves of a damping member 5 with correspondingly integrally molded radial driving webs 2.1. For rotational driving between the damping member 5 and the driver 3, which is also preferably injection molded from plastic, the driver engages with tangential driving elongated holes 5.1 with integral radial overhanging cams 3.1 such that the tangential length of the elongated holes 5.1 results in tangential play in the rotational driving is possible between the worm wheel 2 on the one hand and the driver on the other hand beyond the tangential play of the elastic compliance of the damping member 5.

Konzentrisch zur Getriebeachse 1.2 sind am Innenumfang der Topfwand des Getriebegehäsues 1 Ausnehmungen in Form eines Zahnkranzes 1.3 mit Sägezahnprofilierung vorgesehen. Axial unterhalb des Zahnkranzes 1.3 ist ein Kunststoff-Schleifring 4 derart im Sinne eines Mindestschleifandruckes gelagert, daß er mit Anlageschultern 4.3 an der Schleiffläche des Getriebegehäuses 1 anliegt und durch Vorspannung von die Anlageschultern 4.3 verbindenden Federstegen 4.4 bei der Eindrück-Montage des Schleifrings 4 in das Getriebegehäuse 1 radial an die Schleiffläche im Getriebegehäuse 1 angedrückt wird.Concentric to the gear axis 1.2, 1 recesses in the form of a ring gear 1.3 with sawtooth profiling are provided on the inner circumference of the cup wall of the gear housing. A plastic slip ring 4 is mounted axially below the ring gear 1.3 in the sense of a minimum grinding pressure, that it rests with abutment shoulders 4.3 on the grinding surface of the gearbox housing 1 and is pressed radially against the grinding surface in the gearbox housing 1 by prestressing spring bars 4.4 connecting the abutment shoulders 4.3 when the slip ring 4 is pushed into the gearbox housing 1.

Über den Umfang des Mitnehmers 3 verteilt sind Sperrklinken 6 mit Lagerzapfen 6.1 in Sperrklinken-Lageraufnahmen 3.2 des Mitnehmers 3 derart schwenkbar gelagert, daß kniehebelartig die Verbindungslinie zwischen dem radialen Endpunkt des freien Endes der Sperrklinke 6 und deren Lagerpunkt im Mitnehmer 3 einerseits und zwischen dem Lagerpunkt und der Getriebeachse 1.2 andererseits in einem stumpfen Winkel zur direkten Verbindunglinie zwischen dem freien Ende der Sperrklinke 6 und der Getriebeachse 1.2 verlaufen.Distributed over the circumference of the driver 3, pawls 6 with journals 6.1 in pawl bearing receptacles 3.2 of the driver 3 are pivoted such that the connecting line between the radial end point of the free end of the pawl 6 and its bearing point in the driver 3, on the one hand, and between the bearing point and the gear axis 1.2, on the other hand, run at an obtuse angle to the direct connecting line between the free end of the pawl 6 and the gear axis 1.2.

Der Schleifring 4 weist jeweils einen ersten Freiklink-Nocken 4.1 - in Drehrichtung n₁ gesehen - vor der Sperrklinke 6 und in Nähe seiner Anlageschulter 4.3 sowie einen zweiten Sperrklink-Nocken 4.2 hinter der Sperrklinke 6 auf. In Drehrichtung n₁ gesehen ragt weiterhin ein axialer Anschlag-Nocken 2.2 des Schneckenrades 2 bis in den axialen Bereich des ersten Freiklink-Nockens 4.1.The slip ring 4 each has a first free-latch cam 4.1 - seen in the direction of rotation n 1 - in front of the pawl 6 and in the vicinity of its contact shoulder 4.3 and a second pawl cam 4.2 behind the pawl 6. Viewed in the direction of rotation n 1, an axial stop cam 2.2 of the worm wheel 2 also projects into the axial region of the first free-latch cam 4.1.

Bei motorischem Betrieb zum Heben der Fensterscheibe wird das Schneckenrad 2 über die Schneckenwelle 7 in der einen Drehrichtung n₁ angetrieben. Das Schneckenrad 2 steht über seine formschlüssig in korrespondierenden Nuten des Dämpfungsgliedes 5 eingreifenden Mitnahme-Stege 2.1 in Drehmitnahme zunächst mit dem Dämpfungsglied 5 und nach tangentialem Anschlag der Mitnahmenocken 3.1 des Mitnehmers 3 an die eine oder andere Stirnseite der Langlöcher 5.1 auch in elastisch gedämpfter Drehmitnahme mit dem Mitnehmer 3. Beim anschließenden Drehen des Mitnehmers 3 in der einen Drehrichtung n₁ kommt die Sperrklinke 6 derart zur Anlage an den ersten Freiklink-Nocken 4.1, daß bei vollständiger Ausklinkung aus dem Zahnkranz 1.3 der Schleifring 4 über den ersten Freiklink-Nocken 4.1 mitbewegt wird. Dies bedeutet, daß bei motorischem Antrieb in der einen Drehrichtung n₁ eine Momentenübertragung von der Schneckenwelle 7 auf das Abtriebswellen-Innenritzel bei vollständiger Freiklinkung der Sperrklinke 6 aus dem Zahnkranz 1.3 und somit geräuschlos gewährleistet ist.In motor operation for lifting the window pane, the worm wheel 2 is driven via the worm shaft 7 in one direction of rotation n 1. The worm wheel 2 is in contact with the damping member 5 and after tangential stop of the driving cams 3.1 of the driver 3 via its driving webs 2.1 engaging in a form-fitting manner in corresponding grooves of the damping member 5 one or the other end face of the elongated holes 5.1 also in elastically damped rotary driving with the driver 3. When the driver 3 is subsequently rotated in one direction of rotation n 1, the pawl 6 comes into contact with the first free-latch cam 4.1 so that when fully released from the Gear ring 1.3 of the slip ring 4 is also moved over the first free-click cam 4.1. This means that with a motor drive in one direction of rotation n 1 torque transmission from the worm shaft 7 to the output shaft inner pinion with complete free release of the pawl 6 from the ring gear 1.3 and thus noiseless is guaranteed.

Bei motorischem Antrieb in der anderen Drehrichtung n₂ wird wiederum zunächst das Dämpfungsglied 5 über die Mitnahmestege 2.1 von dem Schneckenrad 2 tangential mitgenommen. Bevor jedoch die Mitnahme-Nocken 3.1 des Mitnehmers 3 an die Stirnseite der Langlöcher 5.1 anschlagen und damit den Mitnehmer 3 anschlaggedämpft in Bewegung setzen, gelangen die an das Schneckenrad 2 axial angeformten Anschlag-Nocken 2.2 derart zur Anlage an die ersten Freiklink-Nocken 4.1 des Schleifringes 4, daß dieser um einen geringen tangentialen Winkel in der anderen Drehrichtung n₂ zunächst bewegt wird und dabei eine Freiklinkung der Sperrklinke 6 gewährleistet. Erst nach dieser Freiklinkung wird durch Anlage der Mitnahme-Nocken 3.1 an die zugehörigen Stirnseiten der Langlöcher 5.1 des Dämpfungsglied 5 auch der Mitnehmer 3 mit Anschlagdämpfung mitgenommen und damit der Abtriebswellen-Innenritzel 3.3 in Richtung n₂ (Senken) bewegt.In the case of a motor drive in the other direction of rotation n₂, the attenuator 5 is again carried tangentially by the worm wheel 2 via the driving webs 2.1. However, before the driving cams 3.1 of the driver 3 strike the end face of the elongated holes 5.1 and thus set the driver 3 in motion in a cushioned manner, the stop cams 2.2 formed axially on the worm wheel 2 come into contact with the first free-click cams 4.1 of the Slip ring 4 that this is initially moved by a small tangential angle in the other direction of rotation n₂ and thereby ensures free locking of the pawl 6. Only after this free-locking is the driver 3 with stop damping carried along by contact of the driving cams 3.1 on the associated end faces of the elongated holes 5.1 of the damping member 5 and thus the output shaft inner pinion 3.3 is moved in the direction of n 2 (lowering).

Bei einem abtriebsseitigen Antrieb der Mitnehmerscheibe 3, z.B. durch Erschütterungen oder durch ungewolltes händisches Aufdrücken der Fensterscheibe, führt der Mitnehmer 3 eine Relativbewegung zum Schneckenrad 2 derart aus, daß vor einer tangentialen Mitnahme des Schneckenrades 2 das zuvor freigeschwenkte freie Ende der Sperrklinke 6 gegen den zweiten Sperrklink-Nocken 4.2 des Schleifringes 4 zur Anlage kommt. Aufgrund des Schleifwiderstandes zwischen dem Schleifring 4 und dem diesen unter leichtem radialen Druck aufnehmenden Getriebegehäuse 1 wird bei der Bewegung des Mitnehmers 3 in der anderen Drehrichtung n₂ die Sperrklinke 6 zum Eingriff in den Zahnkranz 1.3 gebracht. Sobald das freie Ende der Sperrklinke 6 zur Anlage an den Zahnkranz 1.3 gekommen ist, wird die Sperrklinke 6 bei noch weiterer tangentialer Bewegung des Mitnehmers 3 in der anderen Drehrichtung n₂ aufgrund ihrer Kniehebelwirkung selbsthemmend in ihrer Eingriffslage zum Zahnkranz 1.3 fixiert und somit der Sperrklink-Nocken 4.2 entlastet.When the drive plate 3 is driven on the output side, for example by vibrations or by unintentional manual Pressing on the window pane, the driver 3 executes a relative movement to the worm wheel 2 in such a way that, before tangential entrainment of the worm wheel 2, the previously pivoted free end of the pawl 6 comes into contact with the second pawl cam 4.2 of the slip ring 4. Due to the grinding resistance between the slip ring 4 and the gear housing 1 which receives this under slight radial pressure, the pawl 6 is brought into engagement with the ring gear 1.3 when the driver 3 moves in the other direction of rotation n 2. As soon as the free end of the pawl 6 comes into contact with the ring gear 1.3, the pawl 6 is self-lockingly fixed in its engagement position to the ring gear 1.3 with still further tangential movement of the driver 3 in the other direction of rotation n 2 and thus the pawl cam 4.2 relieved.

Der Schleifwiderstand zwischen dem Schleifring 4 und dem Getriebegehäuse 1 ist derart gewählt, daß einerseits beim motorischen Antrieb seiner Mitnahme in der einen oder anderen Drehrichtung n₁ bzw. n₂ möglichst widerstandslos gegeben, jedoch bei abtriebsseitigem Antrieb in der anderen Drehrichtung n₂ ein hinreichender Anschlagwiderstand zur Verschwenkung der Sperrklinke 6 in ihre formschlüssig selbsthemmende Verrastung im Zahnkranz 1.3 gewährleistet ist.The grinding resistance between the slip ring 4 and the gear housing 1 is chosen such that, on the one hand, when driving the motor drive in one or the other direction of rotation n 1 or n 2, as resistance-free as possible, however, with the drive-side drive in the other direction of rotation n 2, there is sufficient impact resistance for pivoting the Pawl 6 is guaranteed in its positive self-locking latching in the ring gear 1.3.

Wie insbesondere aus FIG 2 und FIG 3 ersichtlich, sind das Schneckenrad bzw. der Mitnehmer bzw. die Sperrklinken einschließlich ihrer Lagerungen, ihrer Mitnahmen oder ihrer Verrastungen im Sinne einer axialen Steckmontagetechnik ausgebildet.As can be seen in particular from FIG. 2 and FIG. 3, the worm wheel or the driver or the pawls including their bearings, their entrainment or their catches are designed in the sense of an axial plug-in assembly technique.

Claims (8)

  1. Adjustment drive with a geared motor having setting position which can be fixed by positive self-locking, in particular a motor-vehicle window-lifter drive, having the features:
    a) a first gear element on the drive side in terms of operation, in particular a screw gear (2), is in entrained connection with an axially concentric entraining element (3) with tangential clearance;
    b) an output shaft can be coupled to the entraining element (3) (output-shaft inner pinion 3.3);
    c) recesses (ring gear 1.3) are connected to a gearing housing (1), incorporating the gear elements, axially concentrically to the entraining element (3);
    d) in the entraining element (3) at least one retaining pawl (6) which can be latched positively with the recesses (ring gear 1.3) in an automatic-locking pivot position is rotatably mounted in a toggle-like arrangement relative to its support on the ring gear (1.3) or the gearing axis (1.2);
    e) in the gearing housing (1), axially concentrically to the entraining element (3) there is rotatably mounted in a frictional manner a slip ring (4) with in each case a first disengagement-pawl cam (4.1) in front of and a second retaining-pawl cam (4.2) behind the retaining pawl (6) in such a way that the slip ring (4) with motor drive (lifting) is moved by the entraining element (3) in the one direction of rotation (n₁) by means of the retaining pawl (6) abutting the first disengagement-pawl cam (4.1) and thus rotated free from the ring gear (1.3) and with motor drive (lowering) is moved directly by the drive-side gear element (screw gear 2) in the other direction of rotation (n₂) by way of the first retaining-pawl cam (4.1) and with output-side drive (lowering) of the entraining element (3) in the other direction of rotation (n₂) the retaining pawl (6) can be engaged positively into the ring gear (1.3) in a self-locking manner through striking against the second retaining-pawl cam (4.2).
  2. Adjustment drive according to claim 1 having the feature:
    f) the slip resistance between the slip ring (4) and the gearing housing (1) is such that, on the one hand, with motor drive its entraining in the one or other direction of rotation (n₁ or n₂) is provided with as little resistance as possible, but with output-side drive in the other direction of rotation (n₂) an adequate stop resistance of the second retaining-pawl cam (4.2) is guaranteed for the pivoting of the retaining pawl (6) into its positively self-locking engagement in the ring gear (1.3).
  3. Adjustment drive according to claim 2 having the feature:
    g) the slip ring (4) consists of a plastic ring abutting the gearing housing (1) with internal material and/or form stress, with first disengagement-pawl cam (4.1) or second retaining-pawl cam (4.2) moulded on axially, preferably in one piece.
  4. Adjustment drive according to one of claims 1-3 having the feature:
    h) the first operational drive-side gear element (screw gear 2) can be brought for disengagement-pawling of the retaining pawl (6) with motor drive in the other direction of rotation (n₂) by way of lug cam (2.2) arranged axially in the circumferential circle of the first disengagement-pawl cam (4.1) into synchronization stop connection with the first disengagement-pawl cam (4.1) of the slip ring (4).
  5. Adjustment drive according to one of claims 1-4 having the feature:
    i) the first operational drive-side gear element (screw gear 2) is in entrained connection with the entraining element (3) by way of an at least tangentially elastic damping element (5).
  6. Adjustment drive according to claim 4 or 5 having the feature:
    j) the elastic damping element (5) is constructed in such a way (slotted holes 5.1) that with motor drive in the other direction of rotation (n₂) there is entraining of the entraining element (3) through the screw gear (2) by way of the elastic damping element (5) only after disengagement-pawling of the retaining pawl (6) by way of the lug cam (2.2) of the screw gear (2).
  7. Adjustment drive according to one of claims 1-5 having the feature:
    k) several, in particular three, retaining pawls (6), first disengagement-pawl cams (4.1) and second retaining-pawl cams (4.2) and lug cams (2.2) are arranged distributed over the circumference of the gearing housing (1).
  8. Adjustment drive according to one of claims 1-6 having the feature:
    l) the screw gear (2) and the entraining element (3) or the retaining pawls (6) including their bearings, entrainments or latchings are constructed in the sense of an axial plug assembly technique.
EP92108541A 1992-05-20 1992-05-20 Actuating mechanism with a geared motor with positive and automatic interlocking of position Expired - Lifetime EP0575633B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE92108541T DE59200078D1 (en) 1992-05-20 1992-05-20 Actuator with a geared motor with a position that can be fixed by positive self-locking.
EP92108541A EP0575633B1 (en) 1992-05-20 1992-05-20 Actuating mechanism with a geared motor with positive and automatic interlocking of position
US08/063,386 US5404975A (en) 1992-05-20 1993-05-18 Self-locking adjustment drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92108541A EP0575633B1 (en) 1992-05-20 1992-05-20 Actuating mechanism with a geared motor with positive and automatic interlocking of position

Publications (2)

Publication Number Publication Date
EP0575633A1 EP0575633A1 (en) 1993-12-29
EP0575633B1 true EP0575633B1 (en) 1994-03-02

Family

ID=8209641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92108541A Expired - Lifetime EP0575633B1 (en) 1992-05-20 1992-05-20 Actuating mechanism with a geared motor with positive and automatic interlocking of position

Country Status (3)

Country Link
US (1) US5404975A (en)
EP (1) EP0575633B1 (en)
DE (1) DE59200078D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111236791A (en) * 2020-02-17 2020-06-05 戴双杰 Window closer working based on wind energy change and high-speed centrifugation principle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5695030A (en) * 1995-10-16 1997-12-09 Applied Kinetics Corporation Park mechanism for automotive transmission
US6591707B2 (en) * 2000-07-31 2003-07-15 Asmo Co., Ltd. Geared motor having worm wheel drivingly connected to output shaft
US8191442B2 (en) * 2001-04-17 2012-06-05 Stoneridge Control Devices, Inc. Window lift system and actuator including an internal drive train disconnect
WO2005012745A2 (en) * 2003-07-28 2005-02-10 Stoneridge Control Devices, Inc. Window lift system and actuator including an internal drive train disconnect
US7311190B2 (en) * 2005-04-27 2007-12-25 Dura Global Technologies, Inc. Motor clutch for window regulator motor
US7770423B2 (en) * 2008-03-14 2010-08-10 Taiwan Fu Hsing Industrial Co., Ltd Electro-mechanical lock structure
DE102013210810B4 (en) * 2013-06-10 2015-12-17 Robert Bosch Gmbh Transmission drive unit for a comfort drive in a motor vehicle
US9482509B2 (en) 2014-12-12 2016-11-01 Mitutoyo Corporation Ergonomic micrometer including two modes of adjustment
CN112810691B (en) * 2021-03-15 2022-11-29 奇瑞汽车股份有限公司 Electric steering column worm gear mechanism, electric steering system and vehicle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB214447A (en) * 1923-04-10 1924-04-24 Albert Pigg Improved device for controlling and locking a rotary shaft
US2339232A (en) * 1940-03-08 1944-01-11 Moroney Laurence Francis Braking and locking mechanism
US2918275A (en) * 1958-06-27 1959-12-22 Gen Motors Corp Operating apparatus for a pivoted window
US3757472A (en) * 1971-07-21 1973-09-11 Gen Motors Corp System including bi-directional drive mechanism with reverse drive limit
US3976172A (en) * 1974-11-22 1976-08-24 The United States Of America As Represented By The Secretary Of The Army Brake
DE2911024A1 (en) * 1979-03-21 1980-09-25 Bosch Gmbh Robert Motor-driven window-pane adjusting mechanism - uses relative movement between dog clutch halves to release locking mechanism
EP0261525B1 (en) * 1986-09-24 1990-04-18 Siemens Aktiengesellschaft Actuating device, especially for window regulators of motor vehicles
EP0360911B1 (en) * 1988-09-30 1992-12-09 Siemens Aktiengesellschaft Driving actuating device, particularly a vehicle window raising drive unit
DE59100101D1 (en) * 1990-10-04 1993-06-09 Siemens Ag ADJUSTMENT DRIVE WITH ADJUSTABLE ADJUSTMENT POSITIONS THROUGH SELF-LOCKING.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111236791A (en) * 2020-02-17 2020-06-05 戴双杰 Window closer working based on wind energy change and high-speed centrifugation principle

Also Published As

Publication number Publication date
US5404975A (en) 1995-04-11
EP0575633A1 (en) 1993-12-29
DE59200078D1 (en) 1994-04-07

Similar Documents

Publication Publication Date Title
EP1863998B1 (en) Transmission drive unit comprising a load torque lock
EP0575633B1 (en) Actuating mechanism with a geared motor with positive and automatic interlocking of position
EP2230371B1 (en) Drive unit for cable window regulator
DE102016101885A1 (en) Motor vehicle door lock
DE19844119C2 (en) Motor unit equipped with a buffer mechanism
DE4325176C2 (en) Electric window lifter for converting a motor vehicle window with a mechanical window lifter
EP2235311B1 (en) Transmission unit and drive transmission unit
EP0759495A1 (en) Motor-gearing transmission unit which can be disengaged for emergency manual actuation
EP2228157A1 (en) Screwing or drilling tool powered by an electric motor
DE10318674B4 (en) actuator
DE2615511A1 (en) Vehicle window drive gearbox - has worm wheel coupled to shaft by clutch disengaged by handle
EP1765621B1 (en) Door module for a vehicle door
DE2911024A1 (en) Motor-driven window-pane adjusting mechanism - uses relative movement between dog clutch halves to release locking mechanism
DE29817616U1 (en) Gate shaft drive unit for gates with a drive and / or torsion spring shaft
EP0478931B1 (en) Actuating mechanism with positioning through automatic interlocking
DE3442308A1 (en) Drive device for displacing window panes, sliding roofs or the like in motor vehicles
DE19604501A1 (en) Motorised drive unit for windows and doors with load-dependent output
DE102007030139B4 (en) Adjusting drive for moving a functional element in or on a motor vehicle body
EP1238858A2 (en) Drive for a vehicle rear view mirror
DE10055378A1 (en) Electric motor control drive has worm with limited axial movement with respect to electric motor, especially with respect to electric motor's drive shaft
WO2005061832A2 (en) Window-lifting system comprising a manual or motive drive device
EP1245763A1 (en) Electric motor actuator for motor vehicles, especially for central locking devices
EP0939852A1 (en) Drive device for a motor vehicle door lock or the like
WO1999047781A1 (en) Drive device for a hinged side window of a vehicle
EP1544488B1 (en) Gear unit, especially window regulator, comprising an adapting element

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19930218

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 59200078

Country of ref document: DE

Date of ref document: 19940407

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940526

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970418

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970521

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980520

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010720

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050520