EP2037068B1 - Actuator device for a motor vehicle door - Google Patents

Actuator device for a motor vehicle door Download PDF

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Publication number
EP2037068B1
EP2037068B1 EP07116123A EP07116123A EP2037068B1 EP 2037068 B1 EP2037068 B1 EP 2037068B1 EP 07116123 A EP07116123 A EP 07116123A EP 07116123 A EP07116123 A EP 07116123A EP 2037068 B1 EP2037068 B1 EP 2037068B1
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EP
European Patent Office
Prior art keywords
guide tube
spindle
motor vehicle
friction
vehicle door
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.)
Active
Application number
EP07116123A
Other languages
German (de)
French (fr)
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EP2037068A1 (en
Inventor
Dietmar Orth
Frank Kummer
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.)
U Shin Deutschland Zugangssysteme GmbH
Original Assignee
Valeo Sicherheitssysteme 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 Valeo Sicherheitssysteme GmbH filed Critical Valeo Sicherheitssysteme GmbH
Priority to PT07116123T priority Critical patent/PT2037068E/en
Priority to AT07116123T priority patent/ATE510990T1/en
Priority to PL07116123T priority patent/PL2037068T3/en
Priority to EP07116123A priority patent/EP2037068B1/en
Priority to ES07116123T priority patent/ES2366815T3/en
Priority to PCT/EP2008/062095 priority patent/WO2009034143A1/en
Publication of EP2037068A1 publication Critical patent/EP2037068A1/en
Application granted granted Critical
Publication of EP2037068B1 publication Critical patent/EP2037068B1/en
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Anticipated expiration legal-status Critical

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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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1058—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • 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
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/21—Brakes
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/60—Mounting or coupling members; Accessories therefore
    • E05Y2600/634—Spacers
    • 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
    • E05Y2800/412—Protection against friction
    • 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
    • E05Y2800/67—Materials; Strength alteration thereof
    • 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
    • E05Y2800/73—Single use of elements
    • 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
    • E05Y2900/546—Tailgates

Definitions

  • the invention relates to a drive device for a motor vehicle door, wherein the term "motor vehicle door” is to be understood in the broad sense and includes both a side door, as well as a tailgate or a trunk lid.
  • US 3,398,484 describes, for example, such a spindle drive for automatically opening and closing a vehicle door.
  • the spindle is driven via a transmission gear by a motor, with a non-rotatably mounted nut sitting on the spindle and can be driven by the rotation of the spindle back and forth.
  • the spindle nut is connected to a pipe so that the latter moves out and the vehicle door is opened.
  • EP 1 767 439 Also known in this drive to install a steel compression spring, which supports the engine when opening, for example, the tailgate.
  • DE2827652 describes a coil spring wear protection with at least one wear protection body, which is held on a winding portion of a coil spring.
  • Object of the present invention is to provide a supported by a spring drive unit with reduced noise.
  • a drive device for moving a motor vehicle door in particular a side door, a tailgate or a trunk lid to move it from a first position to a second position, comprising a telescopically extendable, formed from a first and a second housing tube tubular Outer housing, one end of which is attachable to the body of a motor vehicle and the other end to the motor vehicle door, a spindle drive mounted in the outer housing with a threaded spindle, an electric motor which is rotatably connected to drive the motor vehicle door with the threaded spindle and with a rotationally fixed in one Guide tube arranged spindle nut, which carries out a translational movement along the spindle axis upon rotation of the spindle and transmits this translational movement to a thrust element, so that the housing tubes move telescopically relative to each other, to move the motor vehicle door from the first to the second position, wherein in the outer housing a helical compression spring for power assisting the spindle drive when
  • the spacer means the friction of the two parts made of metal is prevented and avoided a disturbing noise.
  • FIG. 1 schematically shows the rear of a motor vehicle 1 with an open motor vehicle door 3, in this case a tailgate, and a drive unit 5 according to the invention, which is mounted laterally.
  • motor vehicle door is understood to mean both a side door, a tailgate or a trunk lid or another movable closure element of the body.
  • the tailgate 3 can be moved from a first to a second position.
  • the tailgate 3 is pivoted by the drive unit 5 from a fully closed position to a fully open position and optionally back again.
  • any intermediate position is possible.
  • the drive means comprises a telescopically extendable, formed from at least a first 7 and a second housing tube 9 tubular outer housing 11, whose one end 13 on the body 15 of the motor vehicle 1 and the other end 17 on the motor vehicle door / tailgate 3, for example Ball socket joints 19 is attached.
  • the drive device is thus mounted instead of the usual gas springs.
  • the drive unit 5 further comprises a spindle drive 20 with an electric motor 21, whose output shaft drives a declining, not self-blocking gear unit 23.
  • a threaded spindle 25 is connected, which is supported by a bearing 27.
  • a brake 29 is optionally provided, which is used, for example, to keep the vehicle door in an intermediate position.
  • the spindle drive 20 furthermore has a spindle nut 33 arranged rotatably in a guide tube 31. Upon rotation of the spindle 25, the spindle nut 33 performs a translational movement along the spindle axis in the guides provided for this purpose of the guide tube 31.
  • a thrust element in the form of a push tube 35 is provided, one end of which is designed as a spindle nut 33 and the other end to the second housing tube 9, as well as with the associated attachment, for example, the ball socket connection 19 is connected, so that the translational movement of the spindle nut 33 is transmitted to the push tube 35, and thus the housing tubes 7 and 9 telescope relative to each other to move the motor vehicle door from the first to the second position.
  • a helical compression spring 37 for power assistance of the spindle drive 20 when driving apart of the housing tubes 7 and 9 are stored.
  • This helical compression spring 37 surrounds the guide tube 31 of the spindle nut 33 and is guided by this, for example, to prevent buckling.
  • These friction-reducing spacer means 39 are made of low-friction plastic.
  • the guide tube has receptacles 41, into which the friction-reducing spacer means 39 made of plastic can be fitted by injection.
  • the spacing means can be prefabricated and then inserted into the receptacles.
  • the friction-reducing spacer means 39 have at least three, preferably four, ribs 43 which are uniformly distributed on the outer circumference of the guide tube 31 and extend along the longitudinal axis of the guide tube 31.
  • the guide tube For each rib 43, the guide tube has a longitudinally extending pocket 45, into which the rib 43 can be fitted in a form-fitting manner.
  • the rib can be designed with a U-shaped cross-section (see FIG. 4 ), wherein the legs 47 of the U engage in the pocket 45 and the base 49 of the U is spaced from the outer periphery of the guide tube and thus prevents the helical compression spring 37 comes into direct contact with the guide tube 31.

Abstract

The driving device has a rear flap or a tail cover. The screw compression spring (37) surrounds guide tube (31) of a spindle nut (33). The outer circumference of the guide tube has a friction-reducing space unit (39), which prevents a direct contact of the screw compression spring with the guide tube. The friction-reducing space unit is made up of plastic.

Description

Die Erfindung bezieht sich auf eine Antriebseinrichtung für eine Kraftfahrzeugtür, wobei der Begriff "Kraftfahrzeugtür" im weiten Sinne zu verstehen ist und sowohl eine Seitentür, als auch eine Heckklappe oder einen Kofferraumdeckel umfasst.The invention relates to a drive device for a motor vehicle door, wherein the term "motor vehicle door" is to be understood in the broad sense and includes both a side door, as well as a tailgate or a trunk lid.

Solche Antreibseinrichtungen erfreuen sich immer größerer Beliebtheit, vor allem seit diese Antriebe nicht mehr hydraulisch, sondern nunmehr über einen Elektromotor angetrieben werden.Such driving means are enjoying ever greater popularity, especially since these drives are no longer hydraulically driven, but now via an electric motor.

Dadurch sind solche Antriebe wesentlich leichter in Fahrzeuge einzubauen und können sogar als Option nachgerüstet werden. Auch können solche Antriebe schneller an neue Fahrzeugmodelle angepasst werden.As a result, such drives are much easier to install in vehicles and can even be retrofitted as an option. Also, such drives can be adapted faster to new vehicle models.

In der weiteren Entwicklung werden diese elektrischen Antriebe nun als Spindelantriebe ausgeführt und soweit verkleinert, dass diese in den Bauraum von handelsüblichen Gasdruckfedern Platz finden und an deren Stelle zwischen der Karosserie und der Kraftfahrzeugtür montiert werden.In the further development of these electric drives are now running as spindle drives and reduced to the extent that they find space in the space of commercial gas springs and mounted in their place between the body and the vehicle door.

US 3,398,484 beschreibt zum Beispiel einen solchen Spindelantrieb zum automatischen Öffnen und Schließen einer Fahrzeugtür. Dabei wird die Spindel über ein Übersetzungsgetriebe von einem Motor angetrieben, wobei eine drehfest montierte Mutter auf der Spindel sitzt und durch die Drehung der Spindel hin und her gefahren werden kann. Die Spindelmutter ist mit einem Rohr so verbunden, dass letzteres herausfährt und die Kraftfahrzeugtür geöffnet wird. US 3,398,484 describes, for example, such a spindle drive for automatically opening and closing a vehicle door. In this case, the spindle is driven via a transmission gear by a motor, with a non-rotatably mounted nut sitting on the spindle and can be driven by the rotation of the spindle back and forth. The spindle nut is connected to a pipe so that the latter moves out and the vehicle door is opened.

Um den Motor möglichst klein halten zu können, ist es zum Beispiel aus EP 1 767 439 bekannt zusätzlich in diesen Antrieb eine Stahldruckfeder einzubauen, welche den Motor beim Öffnen zum Beispiel der Heckklappe unterstützt.For example, to keep the engine as small as possible EP 1 767 439 Also known in this drive to install a steel compression spring, which supports the engine when opening, for example, the tailgate.

Jedoch ist es bei der bekannten Antriebseinheit nachteilig, dass die Stahlfeder mit dem Führungsrohr der Spindelmutter in Berührung kommt. Dadurch kommt es zu einer unerwünschten Geräuschentwicklung, welche an die Karosserie weitergeleitet wird und von dieser als Resonanzkörper sogar noch verstärkt wird. Somit empfindet der Benutzer die Einrichtung eher als störend. Auch kann es durch die Reibung zu einem Abrieb kommen, der nach einiger Zeit den Antrieb verschmutzt und zu Funktionsstörungen führen kann.However, it is disadvantageous in the known drive unit that the steel spring comes into contact with the guide tube of the spindle nut. This leads to an undesirable noise, which is forwarded to the body and is even amplified by this as a sound box. Thus, the user feels the device rather than disturbing. The friction can also lead to abrasion, which after some time contaminates the drive and can lead to malfunctions.

DE2827652 beschreibt einen Schraubenfederverschleissschutz mit wenigstens ein Verschleissschutzkörper, der an einem Windungsabschnitt einer Schraubenfeder gehalten ist. DE2827652 describes a coil spring wear protection with at least one wear protection body, which is held on a winding portion of a coil spring.

Aufgabe der vorliegenden Erfindung ist es eine, von einer Feder unterstützte Antriebeinheit mit verminderter Geräuschentwicklung zu schaffen.Object of the present invention is to provide a supported by a spring drive unit with reduced noise.

Diese Aufgabe wird erfindungsgemäß gelöst durch eine Antriebseinrichtung zum Bewegen einer Kraftfahrzeugtür, insbesondere einer Seitentür, einer Heckklappe oder eines Heckdeckels, um diese von einer ersten Stellung in eine zweite Stellung zu bewegen, umfassend ein teleskopartig ausfahrbares, aus einem ersten und einem zweiten Gehäuserohr gebildeten rohrförmigen Außengehäuse, dessen eines Ende an der Karosserie eines Kraftfahrzeugs und dessen anderes Ende an der Kraftfahrzeugtür befestigbar ist, einem in dem Außengehäuse gelagerten Spindelantrieb mit einer Gewindespindel, einem Elektromotor, der zum Antrieb der Kraftfahrzeugtür mit der Gewindespindel drehbeweglich verbunden ist und mit einer drehfest in einem Führungsrohr angeordneten Spindelmutter, die bei Drehung der Spindel eine Translationsbewegung entlang der Spindelachse ausführt und diese Translationsbewegung auf ein Schubelement überträgt, so dass die Gehäuserohre sich teleskopartig relativ zueinander bewegen, um die Kraftfahrzeugtür von der ersten in die zweite Stellung zu bewegen, wobei in dem Außengehäuse eine Schraubendruckfeder zur Kraftunterstützung des Spindelantriebs beim Auseinander fahren der Gehäuserohre gelagert ist, dass die Schraubendruckfeder das Führungsrohr der Spindelmutter umgibt und von diesem geführt wird, dadurch gekennzeichnet dass der Außenumfang des Führungsrohres reibungsvermindernde Abstandsmittel aufweist, die einen direkten Kontakt der Schraubendruckfeder mit dem Führungsrohr verhindern.This object is achieved by a drive device for moving a motor vehicle door, in particular a side door, a tailgate or a trunk lid to move it from a first position to a second position, comprising a telescopically extendable, formed from a first and a second housing tube tubular Outer housing, one end of which is attachable to the body of a motor vehicle and the other end to the motor vehicle door, a spindle drive mounted in the outer housing with a threaded spindle, an electric motor which is rotatably connected to drive the motor vehicle door with the threaded spindle and with a rotationally fixed in one Guide tube arranged spindle nut, which carries out a translational movement along the spindle axis upon rotation of the spindle and transmits this translational movement to a thrust element, so that the housing tubes move telescopically relative to each other, to move the motor vehicle door from the first to the second position, wherein in the outer housing a helical compression spring for power assisting the spindle drive when moving apart of the housing tubes is stored, that the helical compression spring surrounds the guide tube of the spindle nut and is guided by this, characterized in that the outer circumference the guide tube has friction-reducing spacer means which prevent direct contact of the helical compression spring with the guide tube.

Durch die Abstandsmittel wird die Reibung der beiden aus Metall gefertigten Teile verhindert und eine störende Geräuschentwicklung vermieden.By the spacer means the friction of the two parts made of metal is prevented and avoided a disturbing noise.

Weitere erfindungsmäßige Merkmale und Vorteile ergeben sich aus den folgenden, anhand von Figuren erläuterten Ausführungsbeispielen. Es zeigen:

  • Figur 1 zeigt ein Kraftfahrzeug, mit einer erfindungsmäßigen Antriebseinrichtung,
  • Figur 2 zeigt die erfindungsmäßige Antreibseinrichtung im Längsschnitt,
  • Figur 3 zeigt in einer Perspektivansicht die Schraubendruckfeder und das Führungsrohr, und
  • Figur 4 zeigt einen Querschnitt nach Schnitt IV-IV der Figur 2 durch die erfindungsmäßige Antriebseinheit.
Further inventive features and advantages will become apparent from the following, explained with reference to figures embodiments. Show it:
  • FIG. 1 shows a motor vehicle, with an inventive driving device,
  • FIG. 2 shows the inventive driving device in longitudinal section,
  • FIG. 3 shows in a perspective view of the helical compression spring and the guide tube, and
  • FIG. 4 shows a cross section along section IV-IV of FIG. 2 by the drive unit according to the invention.

Die Figur 1 zeigt schematisch das Heck eines Kraftfahrzeugs 1 mit einer geöffneten Kraftfahrzeugtür 3, in diesem Falle eine Heckklappe, und einer erfindungsmäßigen Antriebseinheit 5, welche seitlich angebracht ist.The FIG. 1 schematically shows the rear of a motor vehicle 1 with an open motor vehicle door 3, in this case a tailgate, and a drive unit 5 according to the invention, which is mounted laterally.

Im Zusammenhang mit dieser Erfindung wird unter Kraftfahrzeugtür sowohl eine Seitentür, eine Heckklappe oder ein Heckdeckel oder ein sonstiges bewegliches Verschlusselement der Karosserie verstanden.In the context of this invention, the term "motor vehicle door" is understood to mean both a side door, a tailgate or a trunk lid or another movable closure element of the body.

Durch die Antriebseinheit 5 kann die Heckklappe 3 von einer ersten in eine zweite Position bewegt werden. Vorteilhafterweise wird die Heckklappe 3 von der Antriebseinheit 5 von einer vollständig geschlossenen Stellung in eine vollständig geöffnete Stellung geschwenkt und gegebenenfalls wieder zurück. Natürlich ist auch jede Zwischenstellung möglich.By the drive unit 5, the tailgate 3 can be moved from a first to a second position. Advantageously, the tailgate 3 is pivoted by the drive unit 5 from a fully closed position to a fully open position and optionally back again. Of course, any intermediate position is possible.

Dazu weist die Antriebseinrichtung ein teleskopartig ausfahrbares, aus mindestens einem ersten 7 und einem zweiten 9 Gehäuserohr gebildeten rohrförmigen Außengehäuse 11 auf, dessen eines Ende 13 an der Karosserie 15 des Kraftfahrzeugs 1 und dessen anderes Ende 17 an der Kraftfahrzeugtür / Heckklappe 3, zum Beispiel durch Kugelpfannenverbindungen 19 befestigt ist. Die Antriebseinrichtung ist somit an Stelle der sonst üblichen Gasfedern montiert.For this purpose, the drive means comprises a telescopically extendable, formed from at least a first 7 and a second housing tube 9 tubular outer housing 11, whose one end 13 on the body 15 of the motor vehicle 1 and the other end 17 on the motor vehicle door / tailgate 3, for example Ball socket joints 19 is attached. The drive device is thus mounted instead of the usual gas springs.

Wie in der Figur 2 ersichtlich, umfasst die Antriebseinheit 5 weiterhin einen Spindelantrieb 20 mit einem Elektromotor 21, dessen Ausgangswelle eine untersetzende, nicht selbstblockierende Getriebeeinheit 23 antreibt. An den Antrieb der Getriebeeinheit 23 ist eine Gewindespindel 25 angeschlossen, die von einem Lager 27 abgestützt wird. Zwischen dem Lager 27 und der Getriebeeinheit 23 ist optional eine Bremse 29 vorgesehen, die zum Beispiel dafür benutzt wird die Kraftfahrzeugtür in einer Zwischenstellung zu halten.Like in the FIG. 2 can be seen, the drive unit 5 further comprises a spindle drive 20 with an electric motor 21, whose output shaft drives a declining, not self-blocking gear unit 23. To the drive of the gear unit 23, a threaded spindle 25 is connected, which is supported by a bearing 27. Between the bearing 27 and the gear unit 23, a brake 29 is optionally provided, which is used, for example, to keep the vehicle door in an intermediate position.

Der Spindelantrieb 20 weist weiterhin eine einer drehfest in einem Führungsrohr 31 angeordnete Spindelmutter 33 auf. Bei Drehung der Spindel 25 führt die Spindelmutter 33 eine Translationsbewegung entlang der Spindelachse in den dafür vorgesehenen Führungen des Führungsrohrs 31 aus.The spindle drive 20 furthermore has a spindle nut 33 arranged rotatably in a guide tube 31. Upon rotation of the spindle 25, the spindle nut 33 performs a translational movement along the spindle axis in the guides provided for this purpose of the guide tube 31.

In dem hier dargestellten Ausführungsbeispiel ist ein Schubelement in Form eines Schubrohres 35 vorgesehen, dessen eine Ende als Spindelmutter 33 ausgeführt ist und dessen anderes Ende mit dem zweiten Gehäuserohr 9, als auch mit der dazugehörigen Befestigung, zum Beispiel die Kugelpfannenverbindung 19, verbunden ist, so dass die Translationsbewegung der Spindelmutter 33 sich auf das Schubrohr 35 überträgt, und somit die Gehäuserohre 7 und 9 sich teleskopartig relativ zueinander bewegen, um die Kraftfahrzeugtür von der ersten in die zweite Stellung zu bewegen.In the embodiment shown here, a thrust element in the form of a push tube 35 is provided, one end of which is designed as a spindle nut 33 and the other end to the second housing tube 9, as well as with the associated attachment, for example, the ball socket connection 19 is connected, so that the translational movement of the spindle nut 33 is transmitted to the push tube 35, and thus the housing tubes 7 and 9 telescope relative to each other to move the motor vehicle door from the first to the second position.

In dem Außengehäuse 11 ist eine Schraubendruckfeder 37 zur Kraftunterstützung des Spindelantriebs 20 beim Auseinander fahren der Gehäuserohre 7 und 9 gelagert.In the outer housing 11 is a helical compression spring 37 for power assistance of the spindle drive 20 when driving apart of the housing tubes 7 and 9 are stored.

Diese Schraubendruckfeder 37 umgibt das Führungsrohr 31 der Spindelmutter 33 und wird von dieser geführt, zum Beispiel um ein Einknicken zu verhindern.This helical compression spring 37 surrounds the guide tube 31 of the spindle nut 33 and is guided by this, for example, to prevent buckling.

Wie in den Figuren 3 und 4 ersichtlich, weist der Außenumfang der Führungsrohres 31 reibungsvermindernde Abstandsmittel 39 auf, die einen direkten Kontakt der Schraubendruckfeder 37 mit dem Führungsrohr 31 verhindern.As in the FIGS. 3 and 4 can be seen, the outer circumference of the guide tube 31 friction reducing spacer means 39 which prevent direct contact of the helical compression spring 37 with the guide tube 31.

Diese reibungsvermindernden Abstandsmittel 39 sind aus reibungsarmen Kunststoff gefertigt.These friction-reducing spacer means 39 are made of low-friction plastic.

Vorteilhafterweise weist das Führungsrohr Aufnahmen 41 auf, in die die reibungsvermindernden Abstandsmittel 39 aus Kunststoff durch Einspritzen eingepasst werden können. Die Abstandsmittel können alternativ auch vorgefertigt werden und dann in die Aufnahmen eingesetzt werden.Advantageously, the guide tube has receptacles 41, into which the friction-reducing spacer means 39 made of plastic can be fitted by injection. Alternatively, the spacing means can be prefabricated and then inserted into the receptacles.

Es hat sich als effizient erwiesen, dass die die reibungsvermindernden Abstandsmittel 39 mindestens drei, vorzugsweise vier auf dem Außenumfang des Führungsrohres 31 gleichmäßig verteilte und entlang der Längsachse des Führungsrohres 31 sich erstreckende Rippen 43 aufweisen.It has proven to be efficient that the friction-reducing spacer means 39 have at least three, preferably four, ribs 43 which are uniformly distributed on the outer circumference of the guide tube 31 and extend along the longitudinal axis of the guide tube 31.

Für jede Rippe 43 weist das Führungsrohr eine längsförmig sich erstreckende Tasche 45 auf, in die die Rippe 43 formschlüssig eingepasst werden kann.For each rib 43, the guide tube has a longitudinally extending pocket 45, into which the rib 43 can be fitted in a form-fitting manner.

Die Rippe kann mit einem U-förmigen Querschnitt ausgeführt sein (siehe Figur 4), wobei die Schenkel 47 des U in die Tasche 45 eingreifen und die Basis 49 des U vom Außenumfang des Führungsrohres beabstandet ist und so verhindert, dass die Schraubendruckfeder 37 mit dem Führungsrohr 31 direkt in Kontakt kommt.The rib can be designed with a U-shaped cross-section (see FIG. 4 ), wherein the legs 47 of the U engage in the pocket 45 and the base 49 of the U is spaced from the outer periphery of the guide tube and thus prevents the helical compression spring 37 comes into direct contact with the guide tube 31.

Durch die erfindungsmäßigen Maßnahmen wird effizient verhindert, dass die Schraubendruckfeder direkt in Kontakt mit dem Führungsrohr tritt, so dass keine lästige Geräuschentwicklung dadurch entstehen kann.The fiction measures effectively prevents the helical compression spring comes directly into contact with the guide tube, so that no annoying noise can occur.

Auch treten beim manuellen Öffnen oder Schließen der Fahrzeugtür keine negativ beeinflussenden Reibungskräfte auf.Also occur when manually opening or closing the vehicle door no negative impact friction forces.

Claims (6)

  1. Drive mechanism for moving a motor vehicle door (3), in particular a side door, a hatch door or a boot lid, so as to move it from a first position to a second position, comprising a telescopically extensible tubular outer housing (11), which is formed from at least a first (7) and a second (9) housing tube and of which one end can be fastened to the body (15) of a motor vehicle (1) and the other end can be fastened to the motor vehicle door (3), a spindle drive (20), which is mounted in the outer housing (11) and has a threaded spindle (25), an electric motor (21), which is connected to the threaded spindle (25) so as to be movable in rotation to drive the motor vehicle door (1), and a spindle nut (33), which is arranged fixed in rotation in a guide tube (31), carries out a translational movement along the spindle axis when the threaded spindle (25) rotates, and transmits this translational movement into a sliding member (35) in such a way that the housing tubes (7, 9) move telescopically relative to one another so as to move the motor vehicle door from the first to the second position, a helical compression spring being mounted in the outer housing (11) to power-assist the spindle drive in separating the housing tubes (7, 9), and the helical compression spring (7, 9) surrounding the guide tube (31) of the spindle nut (33) and being guided thereby, characterised in that the outer circumference of the guide tube (31) comprises friction-reducing spacer means (39) which prevent direct contact between the helical compression spring (37) and the guide tube (31), and in that the friction-reducing spacer means (39) comprise ribs (43) extending along the longitudinal axis of the guide tube (31).
  2. Drive mechanism according to claim 1, characterised in that the friction-reducing spacer means (39) are produced from a synthetic material.
  3. Drive mechanism according to claim 2, characterised in that the guide tube (31) comprises cavities into which the friction-reducing spacer means (39) made of a synthetic material can be fitted by injection-moulding.
  4. Drive mechanism according to any one of claims 1 to 3, characterised in that the friction-reducing spacer means (39) comprises at least three ribs (43), which are uniformly distributed on the outer circumference of the guide tube (31) and extend along the longitudinal axis of the guide tube (31).
  5. Drive mechanism according to claim 4, characterised in that the guide tube (31) comprises for each rib (43) a longitudinally extending recess (45) into which the rib (43) can be fitted.
  6. Drive mechanism according to claim 5, characterised in that the rib (43) has a U-shaped cross section, the arms (47) of the U engaging in the recess (45) and the base (49) of the U being at a distance from the outer circumference of the guide tube (31).
EP07116123A 2007-09-11 2007-09-11 Actuator device for a motor vehicle door Active EP2037068B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PT07116123T PT2037068E (en) 2007-09-11 2007-09-11 Actuator device for a motor vehicle door
AT07116123T ATE510990T1 (en) 2007-09-11 2007-09-11 DRIVE DEVICE FOR A MOTOR VEHICLE DOOR
PL07116123T PL2037068T3 (en) 2007-09-11 2007-09-11 Actuator device for a motor vehicle door
EP07116123A EP2037068B1 (en) 2007-09-11 2007-09-11 Actuator device for a motor vehicle door
ES07116123T ES2366815T3 (en) 2007-09-11 2007-09-11 DRIVING DEVICE FOR A MOTOR VEHICLE DOOR.
PCT/EP2008/062095 WO2009034143A1 (en) 2007-09-11 2008-09-11 Drive device for a motor vehicle door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07116123A EP2037068B1 (en) 2007-09-11 2007-09-11 Actuator device for a motor vehicle door

Publications (2)

Publication Number Publication Date
EP2037068A1 EP2037068A1 (en) 2009-03-18
EP2037068B1 true EP2037068B1 (en) 2011-05-25

Family

ID=39017930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07116123A Active EP2037068B1 (en) 2007-09-11 2007-09-11 Actuator device for a motor vehicle door

Country Status (6)

Country Link
EP (1) EP2037068B1 (en)
AT (1) ATE510990T1 (en)
ES (1) ES2366815T3 (en)
PL (1) PL2037068T3 (en)
PT (1) PT2037068E (en)
WO (1) WO2009034143A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ304950B6 (en) * 2013-02-15 2015-02-04 Vysoká Škola Báňská-Technická Univerzita Ostrava Device to open a car fifth door or rear cover
US9103373B1 (en) 2014-04-30 2015-08-11 Hi-Lex Controls, Inc. Bearing-shaft assembly with bearing and method of attaching a bearing to a shaft
DE102015106356A1 (en) * 2014-11-27 2016-06-02 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Spindle drive for a closure element of a motor vehicle
JP2017172201A (en) * 2016-03-23 2017-09-28 アイシン精機株式会社 Vehicular door opening-closing device
CN105696894B (en) * 2016-04-14 2017-07-07 东阳市甘特电气有限公司 The linear electric tail gate strut of automobile trunk
CN106697071A (en) * 2016-11-15 2017-05-24 浙江众泰汽车制造有限公司 Electric support rod structure of automobile stern door
DE102017129539A1 (en) * 2017-12-12 2019-06-13 Stabilus Gmbh Spring sleeve, cylinder, piston-cylinder unit and method of manufacturing a piston-cylinder unit
DE102018123186A1 (en) * 2018-09-20 2020-03-26 U-Shin Deutschland Zugangssysteme Gmbh Support element for a motor vehicle
CN109914966A (en) * 2019-03-15 2019-06-21 皓月汽车安全系统技术股份有限公司 The electronic strut of electric tail gate open and close system
SE543435C2 (en) * 2019-06-20 2021-02-16 Pelift Ab Operating mechanism for opening and closing a container lid

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
DE2827652A1 (en) * 1978-06-23 1980-01-10 Knorr Bremse Gmbh Brake spring wear protector - has member engaging spring coil in gap between spring guide surface and spring
DE102005030052B4 (en) * 2005-06-27 2012-03-08 Stabilus Gmbh driving means

Also Published As

Publication number Publication date
ATE510990T1 (en) 2011-06-15
PT2037068E (en) 2011-07-13
ES2366815T3 (en) 2011-10-25
WO2009034143A1 (en) 2009-03-19
EP2037068A1 (en) 2009-03-18
PL2037068T3 (en) 2011-11-30

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