EP1057960B1 - Actuating device - Google Patents
Actuating device Download PDFInfo
- Publication number
- EP1057960B1 EP1057960B1 EP00108921A EP00108921A EP1057960B1 EP 1057960 B1 EP1057960 B1 EP 1057960B1 EP 00108921 A EP00108921 A EP 00108921A EP 00108921 A EP00108921 A EP 00108921A EP 1057960 B1 EP1057960 B1 EP 1057960B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adjusting device
- threaded
- sleeve
- spindle
- threaded parts
- 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
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Classifications
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- 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
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
- E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
- E05Y2800/40—Protection
- E05Y2800/422—Protection against vibration or noise
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
- E05Y2900/55—Windows
Definitions
- the invention relates to an actuator for Moving a moving part to different positions with a spindle drive driven by a servomotor, which essentially consists of a spindle with an external thread and a surrounding sleeve part with one with the External thread is engaged internal thread, the internal thread consisting of two separate threaded parts exists and an elastically prestressable element is provided is, with the help of one between the two threaded parts Axial force can be generated.
- Such actuators are with an electrical Servomotor used, for example Side opening window of a motor vehicle to adjust.
- Such an actuator is for example from the US 4,186,524.
- Such side opening windows are usually articulated in the area of the B-pillar of the Motor vehicle articulated to the chassis and can of the Actuating device from its closed position Intermediate positions are brought into the open position.
- the servomotor and Spindle drive directly in the area of the moving part to arrange.
- From US 4186524 A is an actuating device for the method of a moving part in different positions with one known from a servomotor driven spindle drive, the from a spindle with an external thread and this one surrounding sleeve part with a with the external thread in The internal thread is engaged.
- the spindle is thereby by an electric servomotor via a Reduction gear driven, the moving part the actuating device an opening window Motor vehicle is.
- the object of the invention is a To create an actuator which determines the tendency to vibrate and thus reduces noise.
- the object is achieved by an actuating device of the type described at the outset in that the Sleeve part a sleeve area with the first threaded part has, in which the second lock nut Threaded part is axially displaceable and rotatable, with a resilient element between the two threaded parts is provided.
- the increased friction of the spindle drive can indeed slightly increased torque to adjust the moving part is required, however, by the servomotor can be easily provided.
- the friction can also targeted by the selection of the elastic element or the Size of the preload influences and the respective Be adapted to requirements.
- the actuating device according to the invention also shows the positive side effect that the modulating noise when Movement of the moving part is significantly reduced.
- the elastically prestressable element is preferably seated between the two threaded parts.
- the elastic pretensionable Element required so that the additional costs are kept low can be.
- the elastically prestressable element on pressure loaded so that between the threaded parts and the elastic element no connection resilient to tension is required. In principle, however, it would also be conceivable to provide elastic elements loaded under tension, since it ultimately it is irrelevant whether the thread play by a Contracting or pushing the two apart Threaded parts is lifted in the axial direction.
- an O-ring or as an elastically prestressable element Similar spring element made of resilient Material provided.
- Such an O-ring has the other Advantage that it takes up very little axial space and the spindle drive can therefore be kept short.
- the internal thread is split, with a first Threaded part firmly connected to the sleeve area and that second threaded part is held axially movable to this.
- the second threaded part made from a commercially available nut consist.
- the second threaded part is conveniently in Circumferential direction at least at one point on the
- the sleeve area can be fixed to ensure an even axial force constant between the threaded parts during operation maintain.
- An increase in the number of possible relative angular positions between the second threaded part and the sleeve area is particularly compared to Thread pitch short preload of the elastic preloadable element is beneficial to target specific To be able to adjust axial forces.
- the sleeve area is preferably at least over a ball joint coupled to the moving part.
- the Ball joint allows a balance between the different trajectories of the acting as a plunger Sleeve portion and the movable part, for example in training as a side opening window Motor vehicle a pivoting movement around the B-pillar of the Motor vehicle runs. It has also proven advantageous proven between the joint halves of a ball joint, d. H. between the ball head and the ball socket, elastic Means to be provided as there are also in this area Game increases the tendency to noise.
- the Figure shows an actuator 10 for a Side opening window of a motor vehicle.
- the Actuator 10 has a housing 12, the one Electric motor 14 and one via a reduction gear 16 coupled to it Spindle drive 18 picks up.
- the Spindle drive via a plunger 20, which is linearly adjustable is rotatably guided in the housing 12.
- the plunger 20 stands via a ball joint 22 with the side opening window (not shown) in connection and this can be done via different Intermediate positions from its closed position to one swivel fully open position or vice versa.
- the spindle drive essentially consists of a spindle 24 with an external thread 26 and one piece with the plunger 20 formed sleeve region 28 with an internal thread 30.
- the internal thread 30 consists of a first threaded part 32, which is fixedly connected to the sleeve region 28, and a second threaded part designed as a lock nut 34 36 together.
- the lock nut 34 is in the sleeve region 28 held axially displaceable and non-rotatable. Based on these The two threaded parts 32, 36 are guided axially for so long slidable to each other until they with the external thread 26 Spindle 24 engage without play. Between the two Threaded parts 32, 36 is a rubber ring 38 or otherwise resilient element provided.
- the spindle 24 is further provided with a gear 40, that can be integrally formed with the spindle body and with a pinion (not shown) of the electric motor 14 is engaged, the pinion of the electric motor 14 and the gear 40 form the reduction gear 16.
- the Spindle 24 has bearings 42 at both ends formed, via which they are rotatable in the housing 12 is stored.
- the geometry of the two threaded parts 32, 36 and Rubber rings 38 is chosen so that the latter by one certain amount of pressure is biased when both Threaded parts 32, 36 with the external thread 26 of the spindle 24 in Stand by.
- the rubber ring 38 creates an intermediate the lock nut 34 and the sleeve region 28 acting Axial compressive force that is sought, the axial distance enlarge between these two parts. Because of the However, the two threaded parts are engaged 32, 36 in the opposite direction to the corresponding flanks of the external thread 26, so that under the preload a play-free seat of the two Unit comprising threaded parts 32, 36 from sleeve region 28 and lock nut 34 on the external thread 26 of the spindle 24 results.
- This preloaded seat prevents it from going through Forces introduced via the ball joint 22 as they for example, when driving on bad roads can lead to axial movements of the plunger 20, which in Connection with the swinging side opening window too could lead to disturbing noise.
- the actuating device 10 shown therefore works in operation much quieter than a comparable one Actuator that only has one without a lock nut single rigid threaded part with the external thread the spindle is engaged.
Description
Die Erfindung bezieht sich auf eine Stellvorrichtung zum Verfahren eines beweglichen Teils in verschiedene Stellungen mit einem von einem Stellmotor angetriebenen Spindeltrieb, der im wesentlichen aus einer Spindel mit einem Außengewinde und einem diese umgebenden Hülsenteil mit einem mit dem Außengewinde in Eingriff stehenden Innengewinde besteht, wobei das Innengewinde aus zwei getrennten Gewindeteilen besteht und ein elastisch vorspannbares Element vorgesehen ist, mit Hilfe dessen zwischen den beiden Gewindeteilen eine Axialkraft erzeugbar ist.The invention relates to an actuator for Moving a moving part to different positions with a spindle drive driven by a servomotor, which essentially consists of a spindle with an external thread and a surrounding sleeve part with one with the External thread is engaged internal thread, the internal thread consisting of two separate threaded parts exists and an elastically prestressable element is provided is, with the help of one between the two threaded parts Axial force can be generated.
Derartige Stellvorrichtungen werden mit einem elektrischen Stellmotor beispielsweise dazu verwendet, ein Seitenausstellfenster eines Kraftfahrzeuges zu verstellen. Eine solche Stellvorrichtung ist beispielsweise aus der US 4,186,524 bekannt. Derartige Seitenausstellfenster sind gewöhnlich gelenkig im Bereich der B-Säule des Kraftfahrzeuges am Chassis angelenkt und können von der Stellvorrichtung aus ihrer Schließstellung über Zwischenstellungen in die Offenstellung gebracht werden. Es ist ferner bereits bekannt, den Stellmotor und den Spindeltrieb unmittelbar im Bereich des beweglichen Teils anzuordnen. Bei Ausstellfenstern hat sich jedoch gezeigt, dass bereits bei einem sehr kleinen Gewindespiel zwischen den beiden Gewinden von unter 0,1 mm es beim Fahren über schlechte Wegstrecken bei teilweise geöffnetem Ausstellfenster zu einer Geräuschentwicklung kommt. Insbesondere bei den hinteren Seitenausstellfenstern von Kraftfahrzeugen machen sich diese Geräusche besonders störend bemerkbar, weil sie in Kopfnähe der Insassen entstehen. Eine weitere Verkleinerung des Gewindespiels ist wegen der damit einhergehenden Erhöhung der Fertigungskosten nicht praktikabel.Such actuators are with an electrical Servomotor used, for example Side opening window of a motor vehicle to adjust. Such an actuator is for example from the US 4,186,524. Such side opening windows are usually articulated in the area of the B-pillar of the Motor vehicle articulated to the chassis and can of the Actuating device from its closed position Intermediate positions are brought into the open position. It is also already known, the servomotor and Spindle drive directly in the area of the moving part to arrange. With opening windows, however, it has been shown that even with a very small thread play between the two threads of less than 0.1 mm when driving over it bad distances with partially open Hinged window comes to a noise. Especially with the rear side opening windows from Motor vehicles make these noises particularly annoying noticeable because they arise near the head of the occupants. A further reduction of the thread play is because of that not accompanied by an increase in manufacturing costs practical.
Aus der US 5252015 A ist eine Stellvorrichtung der eingangs genannten Art bekannt. Dabei sind auf einer ein Außengewinde aufweisenden Spindel zwei entsprechende Innengewinde aufweisende Muttern relativ zueinander unverdrehbar angeordnet, zwischen denen ein vorgespannter O-Ring angeordnet ist. Der Bereich zwischen den Muttern und der Bereich des O-Rings sind nach außen hin offen, so dass sich dort Verschmutzungen niederschlagen können und der O-Ring leicht Beschädigungen aufgesetzt ist. Dies kann die axiale Verspannung der beiden Muttern dahingehend beeinflussen, dass die sichere Funktion des Verspannens nicht mehr gewährleistet ist.From US 5252015 A is an actuator of the beginning known type known. There is an external thread on one having two corresponding internal threads having nuts not rotatable relative to each other arranged between which a prestressed O-ring is arranged. The area between the nuts and the The area of the O-ring is open to the outside, so that dirt and the O-ring is easily damaged. This can be the axial Influence the tension of the two nuts in such a way that the safe function of tensioning is no longer guaranteed is.
Aus der US 4186524 A ist eine Stellvorrichtung zum Verfahren eines beweglichen Teils in verschiedene Stellungen mit einem von einem Stellmotor angetriebenen Spindeltrieb bekannt, der aus einer Spindel mit einem Außengewinde und einem diese umgebenden Hülsenteil mit einem mit dem Außengewinde in Eingriff stehenden Innengewinde besteht. Die Spindel ist dabei durch einen elektrischen Stellmotor über ein Untersetzungsgetriebe antreibbar, wobei das bewegliche Teil der Stellvorrichtung ein Ausstellfenster eines Kraftfahrzeuges ist.From US 4186524 A is an actuating device for the method of a moving part in different positions with one known from a servomotor driven spindle drive, the from a spindle with an external thread and this one surrounding sleeve part with a with the external thread in The internal thread is engaged. The spindle is thereby by an electric servomotor via a Reduction gear driven, the moving part the actuating device an opening window Motor vehicle is.
Aus der US 4722631 A ist ein Kugelgelenk mit einem elastischen Mittel zwischen den Gelenkhälften bekannt. From US 4722631 A is a ball joint with a elastic means known between the joint halves.
Die Aufgabe der Erfindung besteht darin, eine Stellvorrichtung zu schaffen, welche die Schwingungsneigung und damit die Geräuschentwicklung reduziert.The object of the invention is a To create an actuator which determines the tendency to vibrate and thus reduces noise.
Erfindungsgemäß wird die Aufgabe durch eine Stellvorrichtung der eingangs beschriebenen Art dadurch gelöst, dass das Hülsenteil einen Hülsenbereich mit dem ersten Gewindeteil aufweist, in dem der als Kontermutter ausgebildete zweite Gewindeteil axial verschiebbar und undrehbar gehalten ist, wobei zwischen den beiden Gewindeteilen ein federndes Element vorgesehen ist.According to the invention, the object is achieved by an actuating device of the type described at the outset in that the Sleeve part a sleeve area with the first threaded part has, in which the second lock nut Threaded part is axially displaceable and rotatable, with a resilient element between the two threaded parts is provided.
Bei der erfindungsgemäßen Lösung wird die zwischen den beiden Gewindeteilen mit Hilfe des elastisch vorspannbaren Elements aufgebaute Axialkraft über die Gewindegänge des mit diesen beiden Gewindeteilen in Eingriff stehenden Gewindes abgestützt. Unter der Wirkung des elastisch vorspannbaren Elements auf die axial zueinander beweglichen Gewindeteile kommt es dabei zu einer Aufhebung des Gewindespiels unter bestimmten axialen Anlagekräften der beiden Gewindeteile in jeweils zueinander entgegengesetzter Richtung. Der spielfreie Eingriff der Gewindeteile mit dem anderen Gewinde des Spindeltriebes stabilisiert das zu verstellende bewegliche Teil auch bei stärkeren, von außen einwirkenden Störungskräften, die beispielsweise bei Seitenausstellfenstern von Kraftfahrzeugen Schwingungen verursachen können, wenn der Spindeltrieb mit Spiel behaftet ist. Ein Klappern eines teilweise geöffneten Seitenausstellfensters ist mit einer erfindungsgemäßen Stellvorrichtung selbst beim Befahren schlechter Wegstrecken nicht zu befürchten. In the solution according to the invention, that between the two Threading with the help of the elastically preloadable element built up axial force over the threads of the with these two threaded parts of the engaged thread supported. Under the action of the elastic preload Elements on the axially movable threaded parts the thread play is canceled certain axial contact forces of the two threaded parts in opposite directions to each other. The game-free Engagement of the threaded parts with the other thread of the The spindle drive stabilizes the movable one to be adjusted Part also with stronger, from outside Disruptive forces, for example Side opening windows of motor vehicles vibrations can cause if the spindle drive with play is. A rattling of a partially open one Side opening window is with an inventive Adjustment device even when driving on poor distances not to fear.
Die erhöhte Reibung des Spindeltriebes macht zwar ein geringfügig erhöhtes Drehmoment zum Verstellen des beweglichen Teils erforderlich, das jedoch von dem Stellmotor problemlos erbracht werden kann. Die Reibung kann auch gezielt durch die Auswahl des elastischen Elements oder die Größe der Vorspannkraft beeinflusst und den jeweiligen Erfordernissen angepasst werden.The increased friction of the spindle drive can indeed slightly increased torque to adjust the moving part is required, however, by the servomotor can be easily provided. The friction can also targeted by the selection of the elastic element or the Size of the preload influences and the respective Be adapted to requirements.
Die erfindungsgemäße Stellvorrichtung zeigt weiterhin den positiven Nebeneffekt, dass das modulierende Geräusch beim Verfahren des beweglichen Teils deutlich reduziert wird.The actuating device according to the invention also shows the positive side effect that the modulating noise when Movement of the moving part is significantly reduced.
Vorzugsweise sitzt das elastisch vorspannbare Element zwischen den beiden Gewindeteilen. Bei dieser konstruktiv besonders einfachen Lösung sind gegenüber bisherigen Lösungen nur ein weiteres Gewindeteil und das elastische vorspannbare Element erforderlich, so dass die Mehrkosten gering gehalten werden können. In weiterer bevorzugter Ausgestaltung der Erfindung ist das elastisch vorspannbare Element auf Druck belastet, so dass zwischen den Gewindeteilen und dem elastischen Element keine auf Zug belastbare Verbindung erforderlich ist. Grundsätzlich wäre es jedoch auch denkbar, auf Zug belastete elastische Elemente vorzusehen, da es letztlich gleichgültig ist, ob das Gewindespiel durch ein Zusammenziehen oder ein Auseinanderdrücken der beiden Gewindeteile in axialer Richtung aufgehoben wird.The elastically prestressable element is preferably seated between the two threaded parts. In this constructive are a particularly simple solution compared to previous solutions just another threaded part and the elastic pretensionable Element required so that the additional costs are kept low can be. In a further preferred embodiment of the Invention is the elastically prestressable element on pressure loaded so that between the threaded parts and the elastic element no connection resilient to tension is required. In principle, however, it would also be conceivable to provide elastic elements loaded under tension, since it ultimately it is irrelevant whether the thread play by a Contracting or pushing the two apart Threaded parts is lifted in the axial direction.
Bei einer besonders einfachen Ausführungsform der Erfindung ist als elastisch vorspannbares Element ein O-Ring oder gleichartiges Federelement aus elastisch nachgiebigem Material vorgesehen. Ein derartiger O-Ring hat den weiteren Vorteil, dass er nur sehr wenig axialen Bauraum beansprucht und der Spindeltrieb daher kurz gehalten werden kann. In a particularly simple embodiment of the invention is an O-ring or as an elastically prestressable element Similar spring element made of resilient Material provided. Such an O-ring has the other Advantage that it takes up very little axial space and the spindle drive can therefore be kept short.
In bevorzugter Weiterbildung der Erfindung ist vorgesehen, dass das Innengewinde geteilt ist, wobei ein erstes Gewindeteil fest mit dem Hülsenbereich verbunden und das zweite Gewindeteil axial beweglich zu dieser gehalten ist. Bei einer derartigen Ausführungsform sind nur sehr wenige Änderungen im Bereich des Spindeltriebes im Vergleich zu den bisherigen Lösungen notwendig. Beispielsweise kann das zweite Gewindeteil prinzipiell aus einer handelsüblichen Mutter bestehen. Das zweite Gewindeteil ist zweckmäßigerweise in Umfangsrichtung an wenigstens einer Stelle an dem Hülsenbereich festlegbar, um eine gleichmäßige Axialkraft zwischen den Gewindeteilen im Betrieb konstant aufrechtzuerhalten. Eine Erhöhung der Anzahl möglicher relativer Winkelstellungen zwischen dem zweiten Gewindeteil und dem Hülsenbereich ist insbesondere bei im Vergleich zur Gewindesteigung kurzem Vorspannweg des elastisch vorspannbaren Elements von Vorteil, um gezielt bestimmte Axialkräfte einstellen zu können.In a preferred development of the invention, that the internal thread is split, with a first Threaded part firmly connected to the sleeve area and that second threaded part is held axially movable to this. In such an embodiment, there are very few Changes in the area of the spindle drive compared to the previous solutions necessary. For example, the second In principle, threaded part made from a commercially available nut consist. The second threaded part is conveniently in Circumferential direction at least at one point on the The sleeve area can be fixed to ensure an even axial force constant between the threaded parts during operation maintain. An increase in the number of possible relative angular positions between the second threaded part and the sleeve area is particularly compared to Thread pitch short preload of the elastic preloadable element is beneficial to target specific To be able to adjust axial forces.
Vorzugsweise ist der Hülsenbereich weiterhin über wenigstens ein Kugelgelenk mit dem beweglichen Teil gekoppelt. Das Kugelgelenk ermöglicht einen Ausgleich zwischen den unterschiedlichen Bewegungsbahnen des als Stößel wirkenden Hülsenbereichs und dem beweglichen Teil, das beispielsweise in der Ausbildung als Seitenausstellfenster eines Kraftfahrzeuges eine Schwenkbewegung um die B-Säule des Kraftfahrzeuges ausführt. Es hat sich ferner als vorteilhaft erwiesen, zwischen den Gelenkhälften eines Kugelgelenkes, d. h. zwischen dem Kugelkopf und der Kugelpfanne, elastische Mittel vorzusehen, da auch in diesem Bereich vorhandenes Spiel die Neigung zur Geräuschentwicklung erhöht. The sleeve area is preferably at least over a ball joint coupled to the moving part. The Ball joint allows a balance between the different trajectories of the acting as a plunger Sleeve portion and the movable part, for example in training as a side opening window Motor vehicle a pivoting movement around the B-pillar of the Motor vehicle runs. It has also proven advantageous proven between the joint halves of a ball joint, d. H. between the ball head and the ball socket, elastic Means to be provided as there are also in this area Game increases the tendency to noise.
Nachfolgend wird anhand der beigefügten Zeichnung näher auf
ein Ausführungsbeispiel der Erfindung eingegangen. Die
Abbildung zeigt eine Stellvorrichtung 10 für ein
Seitenausstellfenster eines Kraftfahrzeuges. Die
Stellvorrichtung 10 besitzt ein Gehäuse 12, das einen
Elektromotor 14 und einen
über ein Untersetzungsgetriebe 16 mit diesem gekoppelten
Spindeltrieb 18 aufnimmt. Abtriebsseitig verfügt der
Spindeltrieb über einen Stößel 20, der linear verstellbar
undrehbar in dem Gehäuse 12 geführt ist. Der Stößel 20 steht
über ein Kugelgelenk 22 mit dem Seitenausstellfenster (nicht
dargestellt) in Verbindung und kann dieses über verschiedene
Zwischenstellungen aus seiner geschlossenen Stellung in eine
vollständig geöffnete Stellung oder umgekehrt verschwenken.Below is based on the attached drawing
received an embodiment of the invention. The
Figure shows an
Der Spindeltrieb besteht im Wesentlichen aus einer Spindel 24
mit einem Außengewinde 26 und einem einstückig mit dem Stößel
20 ausgebildeten Hülsenbereich 28 mit einem Innengewinde 30.
Das Innengewinde 30 setzt sich aus einem ersten Gewindeteil
32, das fest mit dem Hülsenbereich 28 verbunden ist, und
einem zweiten, als Kontermutter 34 ausgebildeten Gewindeteil
36 zusammen. Die Kontermutter 34 ist in dem Hülsenbereich 28
axial verschieblich und undrehbar gehalten. Aufgrund dieser
Führung sind die beiden Gewindeteile 32, 36 so lange axial
zueinander verschiebbar, bis sie mit dem Außengewinde 26 der
Spindel 24 spielfrei in Eingriff stehen. Zwischen den beiden
Gewindeteilen 32, 36 ist ein Gummiring 38 oder anderweitig
federndes Element vorgesehen.The spindle drive essentially consists of a
Die Spindel 24 ist weiterhin mit einem Zahnrad 40 versehen,
das einstückig mit dem Spindelkörper ausgebildet sein kann
und mit einem Ritzel (nicht dargestellt) des Elektromotors 14
in Eingriff steht, wobei das Ritzel des Elektromotors 14 und
das Zahnrad 40 das Untersetzungsgetriebe 16 bilden. Die
Spindel 24 ist an beiden Enden mit Lagerstellen 42
ausgebildet, über welche sie in dem Gehäuse 12 drehbar
gelagert ist.The
Die Geometrie der beiden Gewindeteile 32, 36 und des
Gummirings 38 ist so gewählt, dass letzterer um ein
bestimmtes Maß auf Druck vorgespannt wird, wenn beide
Gewindeteile 32, 36 mit dem Außengewinde 26 der Spindel 24 in
Eingriff stehen. Der Gummiring 38 erzeugt dabei eine zwischen
der Kontermutter 34 und dem Hülsenbereich 28 wirkende
Axialdruckkraft, die bestrebt ist, den axialen Abstand
zwischen diesen beiden Teilen zu vergrößern. Aufgrund des
Gewindeeingriffs legen sich jedoch die beiden Gewindeteile
32, 36 in jeweils entgegengesetzter Richtung an den
entsprechenden Flanken des Außengewindes 26 an, so dass sich
unter der Vorspannkraft ein spielfreier Sitz der die beiden
Gewindeteile 32, 36 enthaltenden Einheit aus Hülsenbereich 28
und Kontermutter 34 auf dem Außengewinde 26 der Spindel 24
ergibt. Dieser vorgespannte Sitz verhindert, dass es durch
über das Kugelgelenk 22 eingeleitete Kräfte, wie sie
beispielsweise beim Befahren schlechter Wegstrecken entstehen
können, zu Axialbewegungen des Stößels 20 kommen kann, was in
Verbindung mit dem mitschwingenden Seitenausstellfenster zu
einer störenden Geräuschentwicklung führen könnte. Die
dargestellte Stellvorrichtung 10 arbeitet daher im Betrieb
wesentlich geräuschärmer als eine vergleichbare
Stellvorrichtung, die ohne eine Kontermutter nur über einen
einzigen starr ausgebildeten Gewindeteil mit dem Außengewinde
der Spindel in Eingriff steht.The geometry of the two threaded
Um eine Geräuschentstehung im Bereich des Kugelgelenks 22 zu
vermeiden, sind zwischen dessen Kugelkopf und Kugelpfanne
(beide nicht sichtbar) elastische Mittel vorgesehen, die
ebenfalls unter leichter Vorspannung stehen und daher eine
Spielbewegung zwischen den beiden Gelenkhälften verhindern.In order to generate noise in the area of the
Statt der dargestellten Ausführungsform mit einem auf Druck
belasteten Gummiring 38, ist es ohne weiteres denkbar,
zwischen den beiden Gewindeteilen 32, 36 auch ein auf Zug
belastetes elastisches Element vorzusehen, wobei allerdings
zwischen diesem elastischen Element und den beiden
Gewindeteilen 32, 36 eine auf Zug belastbare Verbindung
vorgesehen sein muss.Instead of the embodiment shown with a print
loaded
Eine umgekehrte Anordnung des Spindeltriebes 18 mit
angetriebenem Hülsenbereich und axial verlagerter Spindel ist
ohne weiteres auch denkbar.A reverse arrangement of the
Claims (11)
- Adjusting device for moving a moveable part into various positions with a spindle drive (18) which is driven by a servomotor (14) and consists essentially of a spindle (24) having an external thread (26) and of a sleeve part (20) which surrounds said spindle and has an internal thread (30) in engagement with the external thread (26), the internal thread (30) consisting of two separate threaded parts (32, 36), and an elastically prestressable element (38) being provided with whose aid an axial force can be produced between the two threaded parts (32, 36), characterized in that the sleeve part (20) has a sleeve region (28) with the first threaded part (32), in which region the second threaded part (36) which is designed as a lock nut (34) is held in an axially displaceable and non-rotatable manner, a resilient element being provided between the two threaded parts.
- Adjusting device according to Claim 1, characterized in that the elastically prestressable element (38) sits between the two threaded parts (32, 36).
- Adjusting device according to Claim 2, characterized in that the elastically prestressable element (38) is compressed.
- Adjusting device according to Claim 3, characterized in that the elastically prestressable element is an O-ring (38) or otherwise resilient element made of elastically flexible material.
- Adjusting device according to one of the preceding claims, characterized in that the internal thread (30) is divided, a first threaded part (32) being connected fixedly to the sleeve region (28) and the second threaded part (36) being held in an axially moveable manner with respect to said first threaded part (32).
- Adjusting device according to Claim 5, characterized in that the second threaded part (34, 36) can be secured to the sleeve region (28) at at least one relative position in the circumferential direction.
- Adjusting device according to one of the preceding claims, characterized in that the servomotor (14) drives the spindle (24) directly or via a step-down gear (16).
- Adjusting device according to one of the preceding claims, characterized in that the sleeve part (20) is coupled to the moveable part.
- Adjusting device according to Claim 8, characterized in that the sleeve part (20) is coupled to the moveable part via at least one ball and socket joint (22).
- Adjusting device according to Claim 9, characterized in that elastic means are provided at least between the joint halves of a ball and socket joint (22).
- Adjusting device according to one of the preceding claims, characterized in that the servomotor is an electric motor (14), and the moveable part is a ventilator window of a motor vehicle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19925741 | 1999-06-05 | ||
| DE19925741A DE19925741A1 (en) | 1999-06-05 | 1999-06-05 | Actuator |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1057960A2 EP1057960A2 (en) | 2000-12-06 |
| EP1057960A3 EP1057960A3 (en) | 2002-12-04 |
| EP1057960B1 true EP1057960B1 (en) | 2004-12-01 |
Family
ID=7910319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00108921A Expired - Lifetime EP1057960B1 (en) | 1999-06-05 | 2000-04-27 | Actuating device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6418666B1 (en) |
| EP (1) | EP1057960B1 (en) |
| DE (2) | DE19925741A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3748196A1 (en) | 2019-06-07 | 2020-12-09 | Precitec GmbH & Co. KG | Spindle for a threaded drive and threaded drive with the same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005007154U1 (en) * | 2005-05-02 | 2006-09-21 | Brose Schließsysteme GmbH & Co.KG | System for operating a closure element of a motor vehicle bodywork comprises housings which are slidable into one another, and are provided with sealing and pressure equalization devices |
| US20070296244A1 (en) * | 2006-06-26 | 2007-12-27 | Guido Borrmann | Adjusting system of a motor vehicle for the adjustment of a closing piece for the closing of an opening of a motor vehicle body |
| US9903425B2 (en) * | 2015-08-30 | 2018-02-27 | Moog Inc. | Positive mechanical rotary lock |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2860497A (en) * | 1956-08-16 | 1958-11-18 | Caterpillar Tractor Co | Resilient coupling for torque transmitting drive shaft |
| JPS5520090B2 (en) * | 1972-04-28 | 1980-05-30 | ||
| US4186524A (en) * | 1978-04-14 | 1980-02-05 | General Motors Corporation | Power actuator for pivotable window |
| JPS60215495A (en) * | 1984-04-12 | 1985-10-28 | Sanshin Ind Co Ltd | Apparatus for equalizing rotation of propeller of ship propelling unit |
| US4722631A (en) * | 1986-05-21 | 1988-02-02 | Musashi Seimitsu Kogyo Kabushiki Kaisha | Ball-and-socket joint with rubber-cushioned ball |
| DE4020998A1 (en) * | 1990-07-02 | 1992-01-16 | Gkn Automotive Ag | DRIVE SHAFT |
| JP2650796B2 (en) * | 1991-03-15 | 1997-09-03 | テイエチケー株式会社 | Manufacturing method of ball nut |
| US5161419A (en) * | 1991-06-04 | 1992-11-10 | Masco Industries, Inc. | Power window actuator |
| FR2677307B1 (en) * | 1991-06-04 | 1993-09-10 | Peugeot | DEVICE FOR CONNECTING A PIVOTING PANEL AT THE END OF ITS CONTROL ELEMENT. |
| JP3243263B2 (en) * | 1991-09-25 | 2002-01-07 | 日本ケーブル・システム株式会社 | Wind opener |
| US5252015A (en) * | 1991-11-04 | 1993-10-12 | Davis Walter S | Adjustable pre-load screw and nut assembly |
| US5680728A (en) * | 1995-03-16 | 1997-10-28 | Saturn Electronics & Engineering, Inc. | Power actuator for a vehicle window |
| DE29604293U1 (en) * | 1996-03-08 | 1997-07-03 | Dewert Antriebs Systemtech | Electromotive furniture drive |
| JPH10159439A (en) * | 1996-12-03 | 1998-06-16 | Asmo Co Ltd | Tilt window opening and closing device |
| US6056348A (en) * | 1996-12-24 | 2000-05-02 | Asmo Co., Ltd. | Drive apparatus for pivotable window pane |
| US6073995A (en) * | 1997-08-05 | 2000-06-13 | Asc Incorporated | Powered venting panel assembly |
| US6195940B1 (en) * | 1997-10-22 | 2001-03-06 | Saturn Electronics & Engineering, Inc. | Power actuator for a vehicle window |
| US6032418A (en) * | 1998-11-09 | 2000-03-07 | Moog Inc. | Driven hinge with automatic driver-operated lock |
-
1999
- 1999-06-05 DE DE19925741A patent/DE19925741A1/en not_active Withdrawn
-
2000
- 2000-04-27 EP EP00108921A patent/EP1057960B1/en not_active Expired - Lifetime
- 2000-04-27 DE DE50008801T patent/DE50008801D1/en not_active Expired - Lifetime
- 2000-06-02 US US09/586,429 patent/US6418666B1/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3748196A1 (en) | 2019-06-07 | 2020-12-09 | Precitec GmbH & Co. KG | Spindle for a threaded drive and threaded drive with the same |
| DE102019115501A1 (en) * | 2019-06-07 | 2020-12-10 | Precitec Gmbh & Co. Kg | Spindle for a screw drive and screw drive with the same |
| DE102019115501B4 (en) | 2019-06-07 | 2022-02-03 | Precitec Gmbh & Co. Kg | Spindle for a screw drive and screw drive with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50008801D1 (en) | 2005-01-05 |
| DE19925741A1 (en) | 2000-12-07 |
| EP1057960A2 (en) | 2000-12-06 |
| EP1057960A3 (en) | 2002-12-04 |
| US6418666B1 (en) | 2002-07-16 |
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