EP2041387A1 - Rotary drive for swivel-mounted doors, in particular vehicle doors - Google Patents

Rotary drive for swivel-mounted doors, in particular vehicle doors

Info

Publication number
EP2041387A1
EP2041387A1 EP07726182A EP07726182A EP2041387A1 EP 2041387 A1 EP2041387 A1 EP 2041387A1 EP 07726182 A EP07726182 A EP 07726182A EP 07726182 A EP07726182 A EP 07726182A EP 2041387 A1 EP2041387 A1 EP 2041387A1
Authority
EP
European Patent Office
Prior art keywords
spindle
rotary drive
piston
drive according
cylinder
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.)
Granted
Application number
EP07726182A
Other languages
German (de)
French (fr)
Other versions
EP2041387B1 (en
Inventor
Reinhold Schulte
Karsten Bothe
Bernhard Fuge
Stefan Kloo
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.)
SCHULTE, REINHOLD
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to PL07726182T priority Critical patent/PL2041387T3/en
Publication of EP2041387A1 publication Critical patent/EP2041387A1/en
Application granted granted Critical
Publication of EP2041387B1 publication Critical patent/EP2041387B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
    • E05F15/54—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings operated by linear actuators acting on a helical track coaxial with the swinging axis
    • 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
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
    • 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
    • E05Y2201/218—Holders
    • E05Y2201/22—Locks
    • 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
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/236—Actuation thereof by automatically acting means using force or torque
    • E05Y2201/238—Actuation thereof by automatically acting means using force or torque reaction force or torque
    • 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
    • E05Y2900/506—Application of doors, windows, wings or fittings thereof for vehicles for buses
    • 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
    • E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles
    • 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
    • E05Y2900/531—Doors

Definitions

  • the invention relates to a rotary drive for hinged door leaves, in particular for vehicle doors.
  • Doors of buses must not only be able to be opened and closed from the driver's seat, but in many cases it is required that the doors in the end position can be locked so that they do not rattle and flutter while driving. It is therefore common, for example, in many doors to raise the door in the end position of the pivotal movement and thus to bring into a locked position.
  • the prior art is in this respect in particular made to DE-OS 37 05 369 reference.
  • a helical gear is used, which is located in the immediate extension of the rotary column.
  • the screw drives mentioned often contain balls for reducing friction which, in view of the high torques to be exerted, lead to susceptibility to wear.
  • the conventional rotary actuators can be improved in a number of points.
  • the invention has for its object to provide a rotary drive for schwenkba- re door, which operates reliably and quickly, without this having to lead to increased wear in the drive elements.
  • the object is achieved erfindungsgemäj3 by a rotary drive for hinged door leaves, especially for vehicle doors, with a rotatably mounted spindle with two opposite, flat screw threads,
  • a cylinder concentrically surrounding the spindle, in which a piston, which is displaceable in the cylinder and rotatably guided in the cylinder, is located,
  • rollers which are rotatably mounted in the piston on both sides of the spindle and roll on the two opposite screw threads upon displacement of the piston.
  • rollers mounted in the piston which in turn can be stored in roller bearings or bearings, support themselves over a large area on the two screw flights. If the rotatably guided, displaceable in the cylinder piston is displaced by a suitable pressure fluid, such as air or a hydraulic medium in the axial direction, the spindle is inevitably rotated.
  • the two opposite screw threads of the spindle can have a relatively large pitch, so that the pressure between the rollers and the screw threads is limited. Moreover, the rollers are relatively large on the screw threads, so that in particular point loads are avoided.
  • the rollers and / or the piston moves in the movement of the piston in the axial direction of the spindle against a stop on the spindle. Since the piston can no longer be displaced further in the axial direction of the spindle, it exerts an axial force on the spindle upon further application of the pressure medium, so that the spindle can be used for the rotary column, which is generally provided in the case of pivotable door leaves, in the axial direction to move, in particular to lift. This lifting is used to move the door in particular against a wedge surface in a holding position in which the door can be held against rattling and flapping.
  • the spindle is axially movably mounted in the cylinder.
  • the axially parallel guidance of the piston is preferably carried out by means of at least one guide rod fixed in the cylinder between its two ends, which penetrates the piston in a corresponding bore.
  • two guide rods are provided on opposite sides of the piston.
  • the piston is preferably closed at both ends by end pieces in which the spindle is mounted.
  • the inlets and outlets for the print medium may be located in the end pieces.
  • rotary actuators of the present type An important aspect of rotary actuators of the present type is the possibility of providing damping in the end positions of the movement, so that, on the one hand, rapid opening and closing movement is possible without a hard stop occurring in the end positions.
  • flexible disks are provided in both end regions of the spindle, which cover the inlets and outlets when approaching the end position, so that the pressure medium on the back of the piston can only escape via a throttled bypass lines.
  • the speed of movement of the piston therefore decreases considerably when approaching the two end positions, so that at least the closed end position and possibly also the open end position of the door is approached at low speed.
  • the spindle preferably has, outside one of the end pieces, a shaft journal which can be directly connected to the rotary column of the door.
  • a drive of the present type is installed at the lower end of the rotary column and the rotary column is fastened directly on the projecting shaft journal.
  • FIG. 1 is a schematic longitudinal section through a drive according to the invention
  • Fig. 2 is a cross section taken along line 2-2 in Fig. 1;
  • Fig. 3 shows a view of one of the ends of the cylinder from the inside of the cylinder.
  • Fig. 1 an inventive drive is shown in its entirety.
  • the drive is located in a cylinder 10 which is composed of a smooth sleeve 12 which is closed by end pieces 14, 16 and connected thereto.
  • the end pieces 14, 16 are plate-shaped or disc-shaped. In the end pieces 14, 16, a spindle 18 is rotatably mounted concentrically to the cylinder.
  • the bearings in the end pieces 14, 16 are equipped with bearing sleeves.
  • the lower bearing is in a blind bore of the lower end piece 16, based on the drawing. This blind bore is designated 24. It receives a bearing sleeve 26 and at the lower end a ball 28, on which the spindle 18 is rotatably supported.
  • the bearing sleeve 26 allows a certain axial displacement of the designated bearing pin 30 at the end of the spindle. This connection will be discussed again later.
  • a similar bearing 32 is formed in a through hole 34. Also in this camp is a bearing sleeve that allows rotation and axial displacement of the spindle. At the outer end of the through hole 34 is a seal 38 which surrounds the bearing pin 40 of the spindle 18 there.
  • a spindle extending shaft journal 42 is provided adjacent to the upper bearing pin 40 outside of the end piece 14, which can be connected directly to the rotary column of a door, not shown.
  • two guide rods 44, 46 extend between the two end pieces 14, 16.
  • the guide rods 44, 46 have unspecified axial bores at both ends, into which screws 48, 50 are screwed in from the outside of the end pieces 14, 16. With these screws 48,50, the two end pieces can be clamped against the sleeve 12.
  • a piston 54 is guided axially displaceably inside the cylinder.
  • the piston 52 has two holes which receive the guide rods 44,46. These holes are sealed by seals 54,56.
  • two rollers 58,60 are mounted on opposite sides of the spindle 18.
  • the spindle 18 has two relatively steep, flat screw threads 62, 64 on two diametrically opposite outer surfaces. against these screw threads 62,64 are the rollers 58,60, as is apparent especially from Fig. 2.
  • the illustration of FIG. 1 is simplified for the sake of clarity in so far as the two opposite screw threads are shown as flat surfaces, while they are actually helical. It will be appreciated that movement of the piston 52 upwardly or downwardly in the cylinder causes the rollers 58, 60 to roll on the flights 62, 64 while rotating the spindle 18.
  • the screw threads 62, 64 are very steep, and the rollers 58, 60 contact the screw threads 62, 64 in a relatively large area, so that the stresses which occur between the rollers and the screw threads are appropriately small.
  • the rollers 58,60 are in through holes, which pass through the piston 52 parallel to each other on both sides of the unspecified center of the piston.
  • these nongangsboh- ments 66,68 are nail bearings 70,72 for storage of roles. Also in this way the drive is subject to wear only to a small extent.
  • the position shown in FIG. 1 is the pivotal door application position in which the drive is perpendicular in the manner shown in FIG. It can be seen that in the position shown in Fig. 1, the piston 52 with the rollers 58,60 has reached its upper end position. The piston thereby runs against a projecting collar 74 of the spindle 18. For further explanation, it should be assumed that the piston 52 has been raised during an opening process from below into the position shown in FIG. 1 and has reached its end position here , If now further pressure medium is introduced into the lower chamber 76, the piston 52 is lifted further upwards.
  • a number of sealing washers can be inserted. These sealing disks surround the spindle 18, so that the recesses must have the recognizable in Fig. 2 cross-sectional shape of the spindle.
  • the two end pieces 14, 16 have. Inlets / outlets 78, whose function changes depending on the direction of movement of the piston 52. The following is to be spoken by outlets.
  • a shown in Fig. 1 in the lower end 16 outlet 80 is to be described representative of the upper outlet.
  • This outlet comprises a radial channel portion 82 and an outgoing from this axis-parallel channel portion 84 which emerges on the inner bottom surface of the lower end piece 16.
  • a flexible disc 86 is rotatably attached to the spindle 18.
  • the disk 86 is shown in Fig. 2 in a plan view from inside the cylinder.
  • the disc 86 has an arcuate slot which moves along the vertical channel portion 84 of the outlet 80 as the spindle 18 rotates, so that whenever the piston 52 in the cylinder 10 is displaced downwardly, it will contain that contained in the lower chamber 76 hydraulic or pneumatic medium can escape freely through the outlet 80.
  • the slot 88 is dimensioned so that when approaching the rotation of the spindle 18 to the end position of the channel portion 84 is initially partially and then completely covered. Now, the pressure medium can no longer escape through the outlet 80.
  • a mounting bracket 93 is attached, which serves for fastening the drive in the vehicle or the like.
  • the outlet shown in Fig. 1 is equally formed in the upper end piece 14.
  • the two outlets serve alternately to accommodate print media or to discharge the print medium.
  • Air is preferably used as the pressure medium.
  • a sealing disc as indicated at 86 on the lower side, carries the reference numeral 92 at the upper end 14.

Abstract

A rotary drive for swivel-mounted doors, in particular vehicle doors, with a rotatably mounted spindle (18) with two opposing, flat threads (62, 64), a cylinder (10) that concentrically surrounds the spindle (18) and that contains a piston (52) that can be moved within the cylinder and that is torque-proof, an opening in the axis line of the piston (52) through which the spindle (18) passes, and at least two rollers (58, 60) that are rotatably mounted in the piston (52) on either side of the spindle and that roll on both opposing flat threads (62, 64) when the piston (52) is moved.

Description

DREHANTRiEB FÜR SCHWENKBARE TÜRFLÜGEL, INSBESONDERE FÜR DREHANTRiEB FOR SWIVEL DOOR WINGS, ESPECIALLY FOR
FAHRZEUGTÜRENVEHICLE DOORS
Die Erfindung betrifft einen Drehantrieb für schwenkbare Türflügel, insbesondere für Fahrzeugtüren.The invention relates to a rotary drive for hinged door leaves, in particular for vehicle doors.
Türen von Omnibussen müssen nicht nur vom Fahrersitz aus geöffnet und geschlossen werden können, sondern in vielen Fällen wird gefordert, dass die Türen in der Endstellung so verriegelt werden können, dass sie während der Fahrt nicht klappern und nicht flattern. Es ist daher beispielsweise bei vielen Türen üblich, den Türflügel in der Endstellung der Schwenkbewegung anzuheben und damit in eine verriegelte Position zu bringen. Zum Stand der Technik wird insoweit insbesondere auf die DE-OS 37 05 369 Bezug genommen.Doors of buses must not only be able to be opened and closed from the driver's seat, but in many cases it is required that the doors in the end position can be locked so that they do not rattle and flutter while driving. It is therefore common, for example, in many doors to raise the door in the end position of the pivotal movement and thus to bring into a locked position. The prior art is in this respect in particular made to DE-OS 37 05 369 reference.
Vielfach wird ein Schraubgetriebe verwendet, das sich in unmittelbarer Verlängerung der Drehsäule befindet.In many cases, a helical gear is used, which is located in the immediate extension of the rotary column.
Zum einschlägigen Stand der Technik kann insbesondere auch auf die DE-OS 2 062 135 Bezug genommen werden.For the relevant prior art, reference may also be made in particular to DE-OS 2 062 135.
Die erwähnten Schraubengetriebe enthalten vielfach Kugeln zur Reibungsverminderung, die angesichts der auszuübenden hohen Drehmomente zu Ver- schleißanfälligkeit führen.The screw drives mentioned often contain balls for reducing friction which, in view of the high torques to be exerted, lead to susceptibility to wear.
Die herkömmlichen Drehantriebe sind in einer Reihe von Punkten verbesserungsfähig.The conventional rotary actuators can be improved in a number of points.
Der Erfindung liegt die Aufgabe zugrunde, einen Drehantrieb für schwenkba- re Türflügel zu schaffen, der zuverlässig und rasch arbeitet, ohne dass dies zu erhöhtem Verschleiß in den Antriebselementen führen muß.The invention has for its object to provide a rotary drive for schwenkba- re door, which operates reliably and quickly, without this having to lead to increased wear in the drive elements.
Die gestellte Aufgabe wird erfindungsgemäj3 gelöst durch einen Drehantrieb für schwenkbare Türflügel, insbesondere für Fahrzeugtüren, mit einer drehbar gelagerten Spindel mit zwei einander gegenüberliegenden, flachen Schraubengängen,The object is achieved erfindungsgemäj3 by a rotary drive for hinged door leaves, especially for vehicle doors, with a rotatably mounted spindle with two opposite, flat screw threads,
einem die Spindel konzentrisch umgebenden Zylinder, in dem sich ein im Zylinder verschiebbarer, drehfest im Zylinder geführter Kolben befindet,a cylinder concentrically surrounding the spindle, in which a piston, which is displaceable in the cylinder and rotatably guided in the cylinder, is located,
einem Durchlaß in der Achslinie des Kolbens, den die Spindel durchläuft,a passage in the axis line of the piston through which the spindle passes,
wenigstens zwei Rollen, die in dem Kolben beiderseits der Spindel drehbar gelagert sind und auf den beiden gegenüberliegenden Schraubengängen bei Verschiebung des Kolbens abrollen.at least two rollers which are rotatably mounted in the piston on both sides of the spindle and roll on the two opposite screw threads upon displacement of the piston.
Die in dem Kolben gelagerten Rollen, die ihrerseits in Rollenlagern oder Na- gellagern gelagert sein können, stützen sich großflächig auf den beiden Schraubengängen ab. Wenn der drehfest geführte, im Zylinder verschiebbare Kolben durch ein geeignetes Druckfluid, beispielsweise Luft oder auch ein hydraulisches Medium, in Axialrichtung verschoben wird, wird die Spindel zwangsläufig gedreht. Die beiden gegenüberliegenden Schraubengänge der Spindel können eine relativ große Steigung aufweisen, so dass sich der Druck zwischen den Rollen und den Schraubengängen in Grenzen hält. Im übrigen liegen die Rollen verhältnismäßig großflächig an den Schraubengängen an, so dass insbesondere Punktbelastungen vermieden werden.The rollers mounted in the piston, which in turn can be stored in roller bearings or bearings, support themselves over a large area on the two screw flights. If the rotatably guided, displaceable in the cylinder piston is displaced by a suitable pressure fluid, such as air or a hydraulic medium in the axial direction, the spindle is inevitably rotated. The two opposite screw threads of the spindle can have a relatively large pitch, so that the pressure between the rollers and the screw threads is limited. Moreover, the rollers are relatively large on the screw threads, so that in particular point loads are avoided.
Vorzugsweise laufen die Rollen und/oder bewegt sich der Kolben bei der Bewegung des Kolbens in Axialrichtung der Spindel gegen einen Anschlag an der Spindel. Da der Kolben hier nicht mehr weiter in Axialrichtung der Spindel verschoben werden kann, übt er bei weiterer Beaufschlagung mit dem Druckmedium eine Axialkraft auf die Spindel aus, so dass die Spindel dafür verwendet werden kann, die in der Regel bei schwenkbaren Türflügeln vorgesehene Drehsäule in Axialrichtung zu verschieben, insbesondere anzuheben. Dieses Anheben wird dazu benutzt, die Tür insbesondere gegen eine Keilfläche in eine Halteposition zu verschieben, in der die Tür gegen Klappern und Flattern festgehalten werden kann. Zu diesem Zweck ist naturgemäß die Spindel axial beweglich in dem Zylinder gelagert. Die achsparallele Führung des Kolbens erfolgt vorzugsweise mithilfe wenigstens einer in dem Zylinder zwischen dessen beiden Enden befestigten Führungsstange, die den Kolben in einer entsprechenden Bohrung durchdringt. Vorzugsweise sind zwei Führungsstangen auf gegenüberliegenden Seiten des Kolbens vorgesehen.Preferably, the rollers and / or the piston moves in the movement of the piston in the axial direction of the spindle against a stop on the spindle. Since the piston can no longer be displaced further in the axial direction of the spindle, it exerts an axial force on the spindle upon further application of the pressure medium, so that the spindle can be used for the rotary column, which is generally provided in the case of pivotable door leaves, in the axial direction to move, in particular to lift. This lifting is used to move the door in particular against a wedge surface in a holding position in which the door can be held against rattling and flapping. For this purpose, of course, the spindle is axially movably mounted in the cylinder. The axially parallel guidance of the piston is preferably carried out by means of at least one guide rod fixed in the cylinder between its two ends, which penetrates the piston in a corresponding bore. Preferably, two guide rods are provided on opposite sides of the piston.
Der Kolben ist vorzugsweise an beiden Enden durch Endstücke verschlossen, in denen die Spindel gelagert ist.The piston is preferably closed at both ends by end pieces in which the spindle is mounted.
In den Endstücken können sich vorzugsweise die Einlasse und Auslässe für das Druckmedium befinden.Preferably, the inlets and outlets for the print medium may be located in the end pieces.
Ein wichtiger Aspekt bei Drehantrieben der vorliegenden Art ist die Möglichkeit, in den Endlagen der Bewegung eine Dämpfung vorzusehen, so dass ei- nerseits eine rasche Öffnungs- und Schließbewegung möglich ist, ohne dass es in den Endstellungen zu einem harten Anschlag kommt. Erfindungsgemäß sind in beiden Endbereichen der Spindel flexible Scheiben vorgesehen, die bei Annäherung an die Endstellung die Ein- und Auslässe abdecken, so dass das Druckmedium auf der Rückseite des Kolbens nur noch über eine gedrosselte Bypassleitungen entweichen kann. Die Bewegungsgeschwindigkeit des Kolbens verringert sich daher bei Annäherung an die beiden Endstellungen erheblich, so dass wenigstens die geschlossene Endstellung und gegebenenfalls auch die geöffnete Endstellung der Tür mit geringer Geschwindigkeit angefahren wird.An important aspect of rotary actuators of the present type is the possibility of providing damping in the end positions of the movement, so that, on the one hand, rapid opening and closing movement is possible without a hard stop occurring in the end positions. According to the invention, flexible disks are provided in both end regions of the spindle, which cover the inlets and outlets when approaching the end position, so that the pressure medium on the back of the piston can only escape via a throttled bypass lines. The speed of movement of the piston therefore decreases considerably when approaching the two end positions, so that at least the closed end position and possibly also the open end position of the door is approached at low speed.
Die Spindel weist vorzugsweise außerhalb eines der Endstücke einen Wellenzapfen auf, der mit der Drehsäule der Tür unmittelbar verbunden werden kann. In der Regel wird daher ein Antrieb der vorliegenden Art am unteren Ende der Drehsäule installiert und die Drehsäule unmittelbar auf dem aufra- genden Wellenzapfen befestigt.The spindle preferably has, outside one of the end pieces, a shaft journal which can be directly connected to the rotary column of the door. As a rule, therefore, a drive of the present type is installed at the lower end of the rotary column and the rotary column is fastened directly on the projecting shaft journal.
Im folgenden werden bevorzugte Ausführungsbeispiele der Erfindung anhand der beigefügten Zeichnung näher erläutert. Fig. 1 ist ein schematischer Längsschnitt durch einen erfin- dungsgemäj3en Antrieb;In the following preferred embodiments of the invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic longitudinal section through a drive according to the invention; FIG.
Fig. 2 ist ein Querschnitt entlang der Linie 2-2 in Fig. 1 ; undFig. 2 is a cross section taken along line 2-2 in Fig. 1; and
Fig. 3 zeigt einen Blicke auf eines der Enden des Zylinders von der Innenseite des Zylinders.Fig. 3 shows a view of one of the ends of the cylinder from the inside of the cylinder.
In Fig. 1 ist ein erfindungsgemäßer Antrieb in seiner Gesamtheit gezeigt. Der Antrieb befindet sich in einem Zylinder 10, der zusammengesetzt ist aus einer glatten Hülse 12, die durch Endstücke 14, 16 verschlossen und mit diesen verbunden ist.In Fig. 1, an inventive drive is shown in its entirety. The drive is located in a cylinder 10 which is composed of a smooth sleeve 12 which is closed by end pieces 14, 16 and connected thereto.
Die Endstücke 14, 16 sind plattenförmig oder scheibenförmig ausgebildet. In den Endstücken 14, 16 ist konzentrisch zu dem Zylinder eine Spindel 18 drehbar gelagert. Die Lager in den Endstücken 14, 16 sind mit Lagerhülsen ausgestattet. Das untere Lager befindet sich in einer Sackbohrung des unteren Endstücks 16, bezogen auf die Zeichnung. Diese Sackbohrung ist mit 24 bezeichnet. Sie nimmt eine Lagerhülse 26 auf und am unteren Ende eine Ku- gel 28, auf der sich die Spindel 18 drehbar abstützt. Die Lagerhülse 26 gestattet eine gewisse Axialverschiebung des mit 30 bezeichneten Lagerzapfens am Ende der Spindel. Auf diesen Zusammenhang soll später noch einmal eingegangen werden.The end pieces 14, 16 are plate-shaped or disc-shaped. In the end pieces 14, 16, a spindle 18 is rotatably mounted concentrically to the cylinder. The bearings in the end pieces 14, 16 are equipped with bearing sleeves. The lower bearing is in a blind bore of the lower end piece 16, based on the drawing. This blind bore is designated 24. It receives a bearing sleeve 26 and at the lower end a ball 28, on which the spindle 18 is rotatably supported. The bearing sleeve 26 allows a certain axial displacement of the designated bearing pin 30 at the end of the spindle. This connection will be discussed again later.
Im oberen Endstück 14 ist ein ähnliches Lager 32 in einer Durchgangsbohrung 34 ausgebildet. Auch in diesem Lager befindet sich eine Lagerhülse, die eine Drehung und eine Axialverschiebung der Spindel zuläßt. Am äußeren Ende der Durchgangsbohrung 34 befindet sich eine Dichtung 38, die den dortigen Lagerzapfen 40 der Spindel 18 umgibt.In the upper end piece 14, a similar bearing 32 is formed in a through hole 34. Also in this camp is a bearing sleeve that allows rotation and axial displacement of the spindle. At the outer end of the through hole 34 is a seal 38 which surrounds the bearing pin 40 of the spindle 18 there.
Es sei bereits jetzt vermerkt, dass angrenzend an den oberen Lagerzapfen 40 außerhalb des Endstücks 14 ein die Spindel verlängernder Wellenzapfen 42 vorgesehen ist, der unmittelbar mit der Drehsäule einer nicht dargestellten Tür verbunden werden kann. Beiderseits der Spindel 18 verlaufen zwei Führungsstangen 44,46 zwischen den beiden Endstücken 14, 16.It should already be noted that adjacent to the upper bearing pin 40 outside of the end piece 14, a spindle extending shaft journal 42 is provided which can be connected directly to the rotary column of a door, not shown. On both sides of the spindle 18, two guide rods 44, 46 extend between the two end pieces 14, 16.
Die Führungsstangen 44,46 weisen an beiden Enden nicht bezeichnete Axial- bohrungen auf, in die von der Außenseite der Endstücke 14, 16 her Schrauben 48,50 eingeschraubt sind. Mit diesen Schrauben 48,50 können die beiden Endstücke gegen die Hülse 12 gespannt werden.The guide rods 44, 46 have unspecified axial bores at both ends, into which screws 48, 50 are screwed in from the outside of the end pieces 14, 16. With these screws 48,50, the two end pieces can be clamped against the sleeve 12.
Auf den Führungsstangen 44,46 ist ein Kolben 54 axial verschiebbar inner - halb des Zylinders geführt. Der Kolben 52 weist zwei Bohrungen auf, die die Führungsstangen 44,46 aufnehmen. Diese Bohrungen sind durch Dichtungen 54,56 abgedichtet. In dem Kolben 52 sind zwei Rollen 58,60 auf gegenüberliegenden Seiten der Spindel 18 gelagert. Die Spindel 18 weist auf zwei diametral gegenüberliegenden Außenflächen zwei relativ steile, flache Schrauben- gänge 62,64 auf. Gegen diese Schraubengängen 62,64 liegen die Rollen 58,60 an, wie vor allem aus Fig. 2 hervorgeht. Die Darstellung der Fig. 1 ist aus Gründen der Anschaulichkeit insoweit vereinfacht, als die beiden gegenüberliegenden Schraubengänge als ebene Flächen dargestellt werden, während sie tatsächlich schraubenförmig verlaufen. Es ist erkennbar, dass eine Bewegung des Kolbens 52 aufwärts oder abwärts in dem Zylinder dazu führt, dass die Rollen 58,60 auf den Schraubengängen 62,64 abrollen und dabei die Spindel 18 drehen.On the guide rods 44, 46, a piston 54 is guided axially displaceably inside the cylinder. The piston 52 has two holes which receive the guide rods 44,46. These holes are sealed by seals 54,56. In the piston 52, two rollers 58,60 are mounted on opposite sides of the spindle 18. The spindle 18 has two relatively steep, flat screw threads 62, 64 on two diametrically opposite outer surfaces. Against these screw threads 62,64 are the rollers 58,60, as is apparent especially from Fig. 2. The illustration of FIG. 1 is simplified for the sake of clarity in so far as the two opposite screw threads are shown as flat surfaces, while they are actually helical. It will be appreciated that movement of the piston 52 upwardly or downwardly in the cylinder causes the rollers 58, 60 to roll on the flights 62, 64 while rotating the spindle 18.
Die Schraubengänge 62,64 sind sehr steil, und die Rollen 58,60 berühren die Schraubengänge 62,64 verhältnismäßig großflächig, so dass die Belastungen, die zwischen den Rollen und den Schraubengängen auftreten, angemessen gering sind. Wie aus Fig. 2 hervorgeht, liegen die Rollen 58,60 in Durchgangsbohrungen, die den Kolben 52 parallel zueinander beiderseits des nicht bezeichneten Zentrums des Kolbens durchlaufen. In diesen Durchgangsboh- rungen 66,68 befinden sich Nagellager 70,72 zur Lagerung der Rollen. Auch auf diese Weise ist der Antrieb nur in geringem Maße verschleißbehaftet.The screw threads 62, 64 are very steep, and the rollers 58, 60 contact the screw threads 62, 64 in a relatively large area, so that the stresses which occur between the rollers and the screw threads are appropriately small. As is apparent from Fig. 2, the rollers 58,60 are in through holes, which pass through the piston 52 parallel to each other on both sides of the unspecified center of the piston. In these Durchgangsboh- ments 66,68 are nail bearings 70,72 for storage of roles. Also in this way the drive is subject to wear only to a small extent.
Es kann davon ausgegangen werden, dass die in Fig. 1 gezeigte Position die Anwendungsposition für schwenkbare Türen ist, in der der Antrieb in der Art und Weise, wie es in Fig. 1 gezeigt ist, senkrecht steht. Es ist erkennbar, dass in der in Fig. 1 gezeigten Stellung der Kolben 52 mit den Rollen 58,60 seine obere Endstellung erreicht hat. Der Kolben läuft dabei gegen einen vorspringenden Kragen 74 der Spindel 18. Zur weiteren Erläuterung soll davon ausgegangen werden, dass der Kolben 52 bei einem Öff- nungsvorgang von unten her in die gezeigte Position der Fig. 1 angehoben worden ist und hier seine Endstellung erreicht hat. Wenn nunmehr weiteres Druckmedium in die untere Kammer 76 eingeleitet wird, wird der Kolben 52 weiter nach oben gehoben. Da er seine Endstellung auf der Spindel 18 erreicht hat, führt dies zu einer gewissen Anhebung der Spindel 18 und damit auch des außerhalb des Zylinders 10 liegenden Wellenzapfens 42, der die nicht dargestellte Tür trägt. Von der Stellung der Fig. 1 ausgehend wird die Tür angehoben und in eine Verriegelungsposition gebracht, in der Klappern und Flattern unterdrückt werden kann.It can be understood that the position shown in FIG. 1 is the pivotal door application position in which the drive is perpendicular in the manner shown in FIG. It can be seen that in the position shown in Fig. 1, the piston 52 with the rollers 58,60 has reached its upper end position. The piston thereby runs against a projecting collar 74 of the spindle 18. For further explanation, it should be assumed that the piston 52 has been raised during an opening process from below into the position shown in FIG. 1 and has reached its end position here , If now further pressure medium is introduced into the lower chamber 76, the piston 52 is lifted further upwards. Since he has reached its end position on the spindle 18, this leads to a certain increase in the spindle 18 and thus also the lying outside of the cylinder 10 shaft journal 42 which carries the door, not shown. Starting from the position of Fig. 1, the door is raised and placed in a locking position in which rattling and flapping can be suppressed.
Zu dem Kolben ist ergänzend zu bemerken, dass an seiner Unterseite in Fig. 1 eine Anzahl von Dichtscheiben eingelegt werden kann. Diese Dichtscheiben umgeben die Spindel 18, so dass die Ausnehmungen mit der in Fig. 2 erkennbaren Querschnittsform der Spindel aufweisen müssen.In addition to the piston is to be noted that on its underside in Fig. 1, a number of sealing washers can be inserted. These sealing disks surround the spindle 18, so that the recesses must have the recognizable in Fig. 2 cross-sectional shape of the spindle.
Anschließend soll zunächst erläutert werden, wie die Endlagendämpfung der Türbewegung zustandekommt. Zu diesem Zweck kann auf Fig. 1 in Verbindung mit Fig. 3 Bezug genommen werden.Subsequently, it will first be explained how the end position damping of the door movement comes about. For this purpose, reference may be made to Fig. 1 in conjunction with Fig. 3.
Die beiden Endstücke 14, 16 weisen. Einlasse/Auslässe 78 auf, deren Funkti- on je nach Bewegungsrichtung des Kolbens 52 wechselt. Im folgenden soll von Auslässen gesprochen werden. Ein in Fig. 1 im unteren Endstück 16 gezeigter Auslaß 80 soll stellvertretend entsprechend dem oberen Auslaß beschrieben werden. Dieser Auslaß umfaßt einen radialen Kanalabschnitt 82 und einen von diesem ausgehenden achsparallelen Kanalabschnitt 84, der auf der inneren Bodenfläche des unteren Endstücks 16 austritt. Oberhalb dieses Bodens ist an der Spindel 18 eine flexible Scheibe 86 drehfest angebracht. Die Scheibe 86 ist in Fig. 2 in einer Draufsicht aus dem Inneren des Zylinders gezeigt. Die Scheibe 86 weist ein bogenförmiges Langloch auf, das sich bei der Drehung der Spindel 18 entlang dem senkrechten Kanalabschnitt 84 des Auslasses 80 bewegt, so dass stets, wenn der Kolben 52 in dem Zylinder 10 abwärts verschoben wird, das in der unteren Kammer 76 enthaltene hydraulische oder pneumatische Medium frei durch den Auslaß 80 austreten kann. Das Langloch 88 ist so bemessen, dass bei Annäherung der Drehung der Spindel 18 an die Endstellung der Kanalabschnitt 84 zunächst teilweise und sodann vollständig verdeckt wird. Nunmehr kann das Druckmedium nicht mehr durch den Auslaß 80 austreten. Es steht lediglich eine relativ enge Drossel- bohrung 90 zur Verfügung, die einen Bypass zwischen dem Inneren des Zylinders und dem radialen Kanalabschnitt 82 herstellt und das Druckmedium langsam über den Auslaß entweichen läßt. Diese Phase der Drehung der Spindel führt dazu, dass die Tür bei der Bewegung in ihre Endstellung wesentlich langsamer geschwenkt wird und damit ohne harten Anschlag in die Endstellung gelangt.The two end pieces 14, 16 have. Inlets / outlets 78, whose function changes depending on the direction of movement of the piston 52. The following is to be spoken by outlets. A shown in Fig. 1 in the lower end 16 outlet 80 is to be described representative of the upper outlet. This outlet comprises a radial channel portion 82 and an outgoing from this axis-parallel channel portion 84 which emerges on the inner bottom surface of the lower end piece 16. Above this bottom, a flexible disc 86 is rotatably attached to the spindle 18. The disk 86 is shown in Fig. 2 in a plan view from inside the cylinder. The disc 86 has an arcuate slot which moves along the vertical channel portion 84 of the outlet 80 as the spindle 18 rotates, so that whenever the piston 52 in the cylinder 10 is displaced downwardly, it will contain that contained in the lower chamber 76 hydraulic or pneumatic medium can escape freely through the outlet 80. The slot 88 is dimensioned so that when approaching the rotation of the spindle 18 to the end position of the channel portion 84 is initially partially and then completely covered. Now, the pressure medium can no longer escape through the outlet 80. There is only one relatively narrow throttle bore 90 available, which creates a bypass between the interior of the cylinder and the radial channel portion 82 and allows the pressure medium to escape slowly through the outlet. This phase of rotation of the spindle causes the door is pivoted much slower during movement into its end position and thus passes without hard stop in the end position.
Ergänzend sei noch darauf hingewiesen, dass auf dem oberen Endstück ein Befestigungswinkel 93 angebracht ist, der zur Befestigung des Antriebs im Fahrzeug oder dergleichen dient.In addition, it should be noted that on the upper end piece a mounting bracket 93 is attached, which serves for fastening the drive in the vehicle or the like.
Der in Fig. 1 dargestellte Auslaß ist gleichermaßen in dem oberen Endstück 14 ausgebildet. Die beiden Auslässe dienen abwechselnd zur Aufnahme von Druckmedium bzw. zum Auslassen des Druckmediums. Als Druckmedium wird vorzugsweise Luft verwendet.The outlet shown in Fig. 1 is equally formed in the upper end piece 14. The two outlets serve alternately to accommodate print media or to discharge the print medium. Air is preferably used as the pressure medium.
Eine dichtende Scheibe, wie sie auf der unteren Seite mit 86 bezeichnet ist, trägt am oberen Endstück 14 die Bezugsziffer 92. A sealing disc, as indicated at 86 on the lower side, carries the reference numeral 92 at the upper end 14.

Claims

PATENTANSPRÜCHE
1. Drehantrieb für schwenkbare Türflügel, insbesondere für Fahrzeugtü- ren,1. Rotary drive for hinged door leaves, in particular for vehicle doors,
mit einer drehbar gelagerten Spindel (18) mit zwei einander gegenüberliegenden, flachen Schraubengängen (62,64),with a rotatably mounted spindle (18) with two opposite flat screw threads (62, 64),
einem die Spindel (18) konzentrisch umgebenden Zylinder (10), in dem sich ein im Zylinder verschiebbarer, drehfest im Zylinder geführter Kolben (52) befindet,a cylinder (10) which concentrically surrounds the spindle (18) and in which a piston (52), which is displaceable in the cylinder and rotatably guided in the cylinder, is located,
einem Durchlaß in der Achslinie des Kolbens (52), den die Spindel (18) durchläuft,a passage in the axis line of the piston (52) through which the spindle (18) passes,
wenigstens zwei Rollen (58,60), die in dem Kolben (52) beiderseits der Spindel drehbar gelagert sind und auf den beiden gegenüberliegenden Schraubengängen (62,64) bei Verschiebung des Kolbens (52) abrollen.at least two rollers (58,60) which are rotatably mounted in the piston (52) on both sides of the spindle and roll on the two opposite screw threads (62,64) upon displacement of the piston (52).
2. Drehantrieb nach Anspruch 1 , dadurch gekennzeichnet, dass die Rollen und/oder der Kolben bei ihrer Bewegung in Axialrichtung der Spindel (18) in einer ihrer Endstellungen gegen einen Anschlag (74) an der Spindel (18) laufen.2. Rotary drive according to claim 1, characterized in that the rollers and / or the piston during its movement in the axial direction of the spindle (18) in one of its end positions against a stop (74) on the spindle (18) run.
3. Drehantrieb nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Spindel (18) axial beweglich gelagert ist.3. Rotary drive according to claim 1 or 2, characterized in that the spindle (18) is mounted axially movable.
4. Drehantrieb nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass im Zylinder (10) wenigstens eine achsparallele Führung (44,46) für den Kolben (52) angeordnet ist. 4. Rotary drive according to one of claims 1 to 3, characterized in that in the cylinder (10) at least one axially parallel guide (44,46) for the piston (52) is arranged.
5. Drehantrieb nach Anspruch 4, dadurch gekennzeichnet, dass die Führung gebildet wird durch wenigstens eine Führungsstange, die sich im Inneren des Zylinders (10) parallel zu dessen Achse erstreckt.5. Rotary drive according to claim 4, characterized in that the guide is formed by at least one guide rod which extends in the interior of the cylinder (10) parallel to the axis thereof.
6. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spindel (18) an beiden Enden in Endstücken (14, 16) gelagert ist, die den Zylinder (10) abschließen.6. Rotary drive according to one of the preceding claims, characterized in that the spindle (18) at both ends in end pieces (14, 16) is mounted, which complete the cylinder (10).
7. Drehantrieb nach Anspruch 6, dadurch gekennzeichnet, dass in den Endstücken (14, 16) Einlasse/Auslässe (80) für ein Druckmedium vorgesehen sind.7. Rotary drive according to claim 6, characterized in that in the end pieces (14, 16) inlets / outlets (80) are provided for a pressure medium.
8. Drehantrieb nach einem vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an der Spindel (18) in wenigstens einer der Endbereiche eine flexible Scheibe (86,92) angebracht ist, die drehfest mit der Spindel (18) verbunden ist.8. Rotary drive according to one of the preceding claims, characterized in that on the spindle (18) in at least one of the end regions, a flexible disc (86,92) is mounted, which is rotatably connected to the spindle (18).
9. Drehantrieb nach Anspruch 8, dadurch gekennzeichnet, dass in der flexiblen Scheibe ein bogenförmiges Langloch (88) vorgesehen ist, das bei Drehung der Spindel über den Einlaß /Auslaß im entsprechenden Endstück (14, 16) bewegt wird und bei Annäherung an die Endstellung der Kolbenbewegung den Einlaß /Auslaß abdeckt.9. Rotary drive according to claim 8, characterized in that in the flexible disc, a curved slot (88) is provided which is moved upon rotation of the spindle via the inlet / outlet in the corresponding end piece (14, 16) and when approaching the end position the piston movement covers the inlet / outlet.
10. Drehantrieb nach Anspruch 9, dadurch gekennzeichnet, dass neben dem Einlaß /Auslaß eine Drosselbohrung (90) mit der Funktion von Einlaß und Auslaß vorgesehen ist. 10. Rotary drive according to claim 9, characterized in that in addition to the inlet / outlet, a throttle bore (90) is provided with the function of inlet and outlet.
1 1. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spindel (18) außerhalb des Zylinders in einen Wellenzapfen (42) übergeht, der mit dem zu betätigenden Türflügel verbindbar ist.1 1. A rotary drive according to one of the preceding claims, characterized in that the spindle (18) outside of the cylinder in a shaft journal (42) merges, which is connectable to the door to be operated.
12. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Rollen (58,60) in Nadellagern (72,74) im Kolben gelagert sind. 12. Rotary drive according to one of the preceding claims, characterized in that the rollers (58,60) are mounted in needle bearings (72,74) in the piston.
EP07726182.4A 2006-07-07 2007-07-02 Rotary drive for swivel-mounted doors, in particular vehicle doors Active EP2041387B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07726182T PL2041387T3 (en) 2006-07-07 2007-07-02 Rotary drive for swivel-mounted doors, in particular vehicle doors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006031477A DE102006031477B4 (en) 2006-07-07 2006-07-07 Rotary drive for hinged door leaves, in particular for vehicle doors
PCT/EP2007/005845 WO2008003449A1 (en) 2006-07-07 2007-07-02 Rotary drive for swivel-mounted doors, in particular vehicle doors

Publications (2)

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EP2041387A1 true EP2041387A1 (en) 2009-04-01
EP2041387B1 EP2041387B1 (en) 2015-07-29

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DE (1) DE102006031477B4 (en)
ES (1) ES2550587T3 (en)
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WO (1) WO2008003449A1 (en)

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DE102007025375B4 (en) 2007-05-31 2011-03-03 Schulte, Reinhold, Dipl.-Ing. stem seal
DE102008009558B3 (en) * 2008-02-06 2009-04-02 Reinhold Schulte Locking device for pneumatically driven shaft spindle of door e.g. swing door, of bus, has tappet lying in outer side of path of spindle in angle position and entering into path of spindle in another angle position
DE102008034994B3 (en) * 2008-07-25 2009-11-12 Daimler Ag Rotary drive for swiveling door leaves
DE102009027794B3 (en) * 2009-07-17 2010-10-28 Reinhold Schulte Adjusting device i.e. multiturn actuator, for moving e.g. door leaf of omnibus, has bypass device manually transferred from locking position to passage position, in which bypass device produces connection between operating chambers
DE102010002625B4 (en) 2010-03-05 2013-07-18 Reinhold Schulte Hydraulic actuating device for a door leaf of a bus
DE102010019348B4 (en) 2010-05-05 2013-09-12 Hans-Erich Maul Planetary screw gripper
PL2503086T3 (en) 2011-03-22 2016-09-30 Drive circuit sub-assembly for a vehicle door
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EP2543807B2 (en) 2011-07-06 2020-03-18 Isaf Bus Components S.r.l. Rotary actuator for moving a swivel swing door, particularly in vehicles
DE102011052961B4 (en) 2011-08-24 2017-01-26 Reinhold Schulte Fluidic vehicle door swivel drive
DE102012103638B4 (en) 2012-04-25 2015-07-09 Reinhold Schulte Fluidic vehicle door swivel drive
DE102013100003A1 (en) 2013-01-02 2014-07-03 Reinhold Schulte Suspension for a gullwing door of a vehicle
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Also Published As

Publication number Publication date
DE102006031477B4 (en) 2008-04-17
DE102006031477A1 (en) 2008-01-17
PL2041387T3 (en) 2016-05-31
WO2008003449A1 (en) 2008-01-10
ES2550587T3 (en) 2015-11-10
EP2041387B1 (en) 2015-07-29

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