EP0160719B1 - Single lever setting device - Google Patents

Single lever setting device Download PDF

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Publication number
EP0160719B1
EP0160719B1 EP84105076A EP84105076A EP0160719B1 EP 0160719 B1 EP0160719 B1 EP 0160719B1 EP 84105076 A EP84105076 A EP 84105076A EP 84105076 A EP84105076 A EP 84105076A EP 0160719 B1 EP0160719 B1 EP 0160719B1
Authority
EP
European Patent Office
Prior art keywords
lever
curve section
setting device
pawl
guide slot
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
Application number
EP84105076A
Other languages
German (de)
French (fr)
Other versions
EP0160719A1 (en
Inventor
Bernd Rabe
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Priority to EP84105076A priority Critical patent/EP0160719B1/en
Priority to DE8484105076T priority patent/DE3479354D1/en
Priority to US06/725,182 priority patent/US4641545A/en
Priority to CA000480188A priority patent/CA1243586A/en
Priority to DK198885A priority patent/DK198885A/en
Priority to BR8502108A priority patent/BR8502108A/en
Priority to ES542826A priority patent/ES8606685A1/en
Publication of EP0160719A1 publication Critical patent/EP0160719A1/en
Application granted granted Critical
Publication of EP0160719B1 publication Critical patent/EP0160719B1/en
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/08—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlled members being actuated successively by progressive movement of the controlling member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20018—Transmission control
    • Y10T74/20073—Control of plural mechanisms [e.g., control of transmission and control of 4 - wheel drive]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element
    • Y10T74/20213—Interconnected
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y10T74/2063—Stops
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20636—Detents
    • Y10T74/20672—Lever engaging rack
    • Y10T74/20696—Finger lever release
    • Y10T74/20702—Slidable

Definitions

  • the invention relates to a single-lever actuating device with a lever mounted on a pivot pin and a pivotably mounted actuating element which has a guide slot which consists of a curve section running concentrically to the pivot pin and a curve section angled relative thereto and in which the lever is guided in this way that when the lever enters the angled curve section, the actuator is pivoted, the lever being able to assume at least three positions I, II, III and the position being assigned to one end of the concentric curve section to which the angled curve section connects, the position II is assigned to the other end of the concentric curve section and position 111 is assigned to the angled curve section.
  • This known single-lever actuating device (FR-A-1 586 367) is used to adjust a supply air flap and a distribution flap in an air conditioning system of motor vehicles in such a way that when the lever moves in the concentric curve section of the guide slot, the supply air flap, which is connected to the lever by a cable , is pivoted towards its closed position, the position of the distributor flap being maintained.
  • the distributor flap is only adjusted when the lever enters the angled curve section and also adjusts the actuator to which the distributor flap is connected via a cable.
  • a single-lever adjusting device under the action of a spring is also no longer new (AU-B-39 034). It has a lever which can be pivoted between two positions and is mounted on a pin and is used to engage and disengage a clutch, via which a motor of a boat is connected with a screw. The lever is guided in a fixed backdrop, at one end of which a grid point is provided. The backdrop itself cannot be swiveled.
  • the lever can automatically move into position I, in which the drive for the cutting unit and possibly for the elevator conveyor is switched off, if blockages occur. Quick stops as such are common in combine harvester manufacturing.
  • Locking can be achieved in a simple manner if grid points are provided in the region of the guide slot or on an outer guide track of the actuating element arranged concentrically to the guide slot, for receiving a pawl pivotably mounted on the lever, the grid points being designed as grooves and positions II and 111 are assigned to the lever.
  • the lever for receiving a linkage connected to the pawl can have an axial bore and a spring can be provided on the linkage between the pawl and the lower end of the lever.
  • the spring is to be arranged so that the pawl automatically engages in the groove assigned to position II and disengages when the linkage is pressed, so that the lever; without it having to be pivoted manually, it snaps back into position I, in which it rests against the abutment and the drive is switched off.
  • Security is further improved in that a stop is provided on the actuator at a distance from the abutment, which forms a z-shaped passage for the pawl with the abutment. In this way, the operator is forced to manually guide the lever or its pawl through the passage path, for which purpose the pawl has to be pivoted upward again.
  • the actuator can expediently be designed as a double-armed lever, one lever arm having the guide slot and the guideway and being connected to the other lever arm in the shifting cable for actuating a clutch.
  • a shift cable for actuating a control valve of a hydraulic working element is also advantageously connected to the lever arm with the guide slot.
  • 10 in FIG. 1 denotes a single-lever actuating device for switching two clutches (not shown in the drawing) and a hydraulic motor of a motor vehicle, for example a combine harvester.
  • the single-lever adjusting device 10 consists of a lever 12 which is formed from a cylindrical tube 14 which is fixedly arranged on a lever arm 16.
  • a holder 18 is provided in the combine, on which the lever arm 16 is mounted by means of a pivot pin 20.
  • a second lever arm or an adjusting part 22 connects to the lever arm 16 and is connected to a clutch, not shown in the drawing.
  • the clutch is seated between a drive, also not shown in the drawing, for a cutting unit and for an inclined conveyor and a belt transmission, which is connected to the internal combustion engine of the combine harvester via further belt transmissions.
  • a drive also not shown in the drawing
  • a belt transmission which is connected to the internal combustion engine of the combine harvester via further belt transmissions.
  • the lever 12 In the position shown in FIG. 1, the lever 12 is in its neutral position, ie the clutch which can be actuated via the actuating part 22 is disengaged, so that the drive for the cutting mechanism is interrupted.
  • a second bracket 24 provided in the combine harvester serves to pivotally accommodate an actuator 26 which is connected to the bracket 24 via a pivot pin 28.
  • the actuator 26 is also designed as a two-armed lever arm, the lower, smaller lever arm 30 being connected to an actuating part or shifting cable 32, via which a clutch, also not shown in the drawing, can be actuated, which between the drive for the cutting unit and the inclined conveyor for a combine harvester and a hydraulic motor for reversing the drive is arranged. If the lever 12 assumes the position shown in FIG. 1, the clutch which can be actuated via the shifting cable 32 is also disengaged and the drive is interrupted.
  • the upper lever arm 34 connected to the lever arm 30 consists of a circular arc segment with an outer guideway 36, in which two grooves 38 and 40 arranged at a distance from one another are embedded.
  • One groove 40 is located between the pivot pin 28 and an abutment 42 protruding from the guideway 36, against which a pawl 44 pivotably mounted on the lever arm 16 can be brought into contact.
  • a third groove can also be provided in addition to the groove 40.
  • the pawl 44 is fastened on one side of the lever arm 16 by means of a bolt 46.
  • the free end of the pawl 44 consists of an inwardly bent nose 48, which comes to bear against the abutment 42 in the neutral position of the single-lever adjusting device 10.
  • the nose 48 opposite end of the pawl 44 is movably connected to a linkage 50 which is slidably received in the tube 14 of the lever 12 and has an operating button 52 at its upper end, via which the lever 12 pivots about its pivot pin 20 and over which the linkage 50 can be adjusted in the axial direction of the tube 14.
  • the control button 52 has a projection 54 which projects into the upper end of the tube 14 and thus radially fixes the linkage 50 in the tube 14.
  • a tension spring 56 on the linkage 50 which wants to pivot the pawl 44 in such a way that the nose 48 engages in the groove 38 or 40 or pressed against the surface of the guideway 36 becomes.
  • a stop 49 against which the nose 48 comes to rest and which prevents further adjustment of the lever 12 when the nose 48 has been pivoted upwards via the pawl 44.
  • the stop 49 is so spaced from the guide track 36 so that the nose 48 can move up to the abutment 36 through the gap 42 (see arrow 80) between the stop 49 and the guide track. This ensures that the lever 12 cannot be easily adjusted from its position II beyond position I to a position 111. Only when the nose 48 comes to bear against the abutment 42 can the nose 48 be pivoted upward behind the stop 49 via the pawl 44 and then the lever 12 can be brought into the position 111.
  • a guide slot 60 is provided in the curved lever arm 34 and serves to receive a cam or a roller 62 arranged on the lever arm 16.
  • the roller 62 is secured by means of a screw bolt 64 and a guide disk 68 running along the outside of the lever arm 34, so that the roller 62 cannot be guided out of the side of the guide slot 60.
  • the guide slot 60 provided in the lever arm 34 consists of two cam sections 70 and 72.
  • the cam section 70 extends between a lower end face 74 of the lever arm 34 to behind the groove 38.
  • the cam section 70 is arranged concentrically with the pivot axis of the pivot pin 28.
  • the radius for the curve section 70 is indicated by R 1 in FIG. 2.
  • the curve section 70 is followed by a smaller curve section 72, the radius R 2 of which increases continuously between points A and B with respect to the pivot axis of the pivot pin 28. If, for example, the roller 62 is moved out of the cam section 70 into the cam section 72, the actuator 26 is automatically also adjusted, and thus the lever arm 30 and the shifting cable 32 connected to the lever arm for actuating the clutch. The actuator 26 is thus positively guided via the lever 12.
  • the lever arm 34 also engages between the Pivots 28 of the actuator 26 and the roller 62 on a third actuator or a shift cable 76, which is automatically adjusted when the actuator 26 is adjusted.
  • a control valve for the hydraulic motor for the return or the reversing of the inclined conveyor and the cutting mechanism can be influenced via the control part 76.
  • a tension spring 78 is provided, which pivots the actuating part 22 in the counterclockwise direction and thereby presses the nose 48 against the abutment 42, so that the lever 12 is its in Fig. 1 shown neutral position I maintains.
  • the various positions of the lever 12 are shown. indicates the neutral position, II the operating position of the cutting unit and the inclined conveyor for the cutting device of the combine harvester and III the reversing position. If the lever 12 is to be pivoted from its neutral position I into the operating position II, it only needs to be pulled upwards, the nose 48 of the pawl 44 sliding along the guide track 36 until it engages in the groove 38 of the actuator 26 . When the lever 12 is pivoted into the operating position II, the clutch for the cutting mechanism and the inclined conveyor is engaged so that the drive to the traction mechanism drive driven by the internal combustion engine is produced and the cutting mechanism and inclined conveyor can operate normally.
  • the lever 12 can be adjusted from its operating position II into the reversing position III.
  • the control button 52 is pressed down so that the nose 48 releases the groove 38.
  • a direct adjustment of the lever 12 from position II to position III is to be prevented.
  • the abutment 42 is provided on the guide track 36, against which the pawl 44 comes to rest.
  • the stop 49 causes when the lever 12 is pivoted from the operating position II into the reversing position III that the lever 12 can only be pivoted beyond this position after a brief stop in the neutral position I, since even with the nose 48 completely pivoted upwards, this counter the stop 49 would come to rest. Only when the nose 48 comes to rest against the abutment 42 can the nose 48 be pivoted completely upward behind the stop 49 via the pawl 44 and thus the lever 12 can be adjusted to the position III. In this way, damage to the drive device and to the reversing gear mechanism can be eliminated, since it is impossible to move too quickly from position II to position III or vice versa.
  • the cam or the roller 62 is also moved into the curve section 72 of the guide slot 60 and the actuator 26 is thus also automatically adjusted.
  • the directional control valve associated with the control part 76 is also adjusted to a flow position via the control part 76, so that the hydraulic motor for driving the reversing gear can be supplied with pressure medium.
  • the position 111 engages the clutch between the reversing gear and the shaft or on the drive device for the cutting unit and for the feeder, so that the cutting unit and feeder can be driven in reverse and thus the material jam in the feeder housing can dissolve.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Harvester Elements (AREA)
  • Mechanical Control Devices (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Description

Die Erfindung bezieht sich auf eine Einhebel- stellvorrichtung mit einem auf einem Schwenkzapfen gelagerten Hebel und einem schwenkbar gelagerten Stellorgan, das einen Führungsschlitz aufweist, der aus einem konzentrisch zum Schwenkzapfen verlaufenden Kurvenabschnitt und einem gegenüber diesem abgewinkelten Kurvenabschnitt besteht und in dem der Hebel derart geführt ist, daß beim Eintritt des Hebels in den abgewinkelten Kurvenabschnitt das Stellorgan verschwenkt wird, wobei der Hebel mindestens drei Stellungen I, II, III einnehmen kann und die Stellung dem einen Ende des konzentrischen Kurvenabschnittes zugeordnet ist, an den sich der abgewinkelte Kurvenabschnitt anschließt, die Stellung II dem anderen Ende des konzentrischen Kurvenabschnittes zugeordnet ist und die Stellung 111 dem abgewinkelten Kurvenabschnitt zugeordnet ist.The invention relates to a single-lever actuating device with a lever mounted on a pivot pin and a pivotably mounted actuating element which has a guide slot which consists of a curve section running concentrically to the pivot pin and a curve section angled relative thereto and in which the lever is guided in this way that when the lever enters the angled curve section, the actuator is pivoted, the lever being able to assume at least three positions I, II, III and the position being assigned to one end of the concentric curve section to which the angled curve section connects, the position II is assigned to the other end of the concentric curve section and position 111 is assigned to the angled curve section.

Diese bekannte Einhebelstellvorrichtung (FR-A-1 586 367) dient zum Verstellen einer Zuluftklappe und einer Verteilerklappe in einer Klimaanlage von Kraftfahrzeugen derart, daß bei einer Bewegung des Hebels im konzentrischen Kurvenabschnitt des Führungsschlitzes die Zuluftklappe, die über einen Seilzug an den Hebel angeschlossen ist, in Richtung auf ihre Schließstellung verschwenkt wird, wobei die Stellung der Verteilerklappe beibehalten wird. Die Verteilerklappe wird erst dann verstellt, wenn der Hebel in den abgewinkelten Kurvenabschnitt eintritt und dabei auch das Stellorgan verstellt, an das die Verteilerklappe über einen Seilzug angeschlossen ist.This known single-lever actuating device (FR-A-1 586 367) is used to adjust a supply air flap and a distribution flap in an air conditioning system of motor vehicles in such a way that when the lever moves in the concentric curve section of the guide slot, the supply air flap, which is connected to the lever by a cable , is pivoted towards its closed position, the position of the distributor flap being maintained. The distributor flap is only adjusted when the lever enters the angled curve section and also adjusts the actuator to which the distributor flap is connected via a cable.

Eine unter der Wirkung einer Feder stehende Einhebelstellvorrichtung ist ebenfalls nicht mehr neu (AU-B-39 034). Sie weist einen zwischen zwei Stellungen schwenkbaren und auf einem Zapfen gelagerten Hebel auf und dient zum Ein- und Ausrücken einer Kupplung, über die ein Motor eines Bootes mit einer Schraube verbunden wird. Der Hebel ist in einer feststehenden Kulisse geführt, an deren einem Ende eine Rasterstelle vorgesehen ist. Die Kulisse selbst ist nicht verschwenkbar.A single-lever adjusting device under the action of a spring is also no longer new (AU-B-39 034). It has a lever which can be pivoted between two positions and is mounted on a pin and is used to engage and disengage a clutch, via which a motor of a boat is connected with a screw. The lever is guided in a fixed backdrop, at one end of which a grid point is provided. The backdrop itself cannot be swiveled.

Die mit der Erfindung zu lösende Aufgabe wird darin gesehen, diese bekannte Einhebelstellvorrichtung als Sicherheitsschaltung auszubilden und für den Antrieb eines Schneidwerkes von Mähdreschern und gegebenenfalls eines sich daran anschließenden Elevatorförderers einzusetzen, wobei bei auftretenden Verstopfungen die Drehrichtung der angetriebenen Organe umgekehrt werden kann.The object to be achieved with the invention is seen in designing this known single-lever actuating device as a safety circuit and using it for driving a cutting mechanism of combine harvesters and possibly an adjoining elevator conveyor, wherein the direction of rotation of the driven elements can be reversed in the event of blockages.

Diese Aufgabe ist dadurch gelöst worden, daß der Hebel mit der Wirkung einer Feder aus der Stellung II in die Stellung I verschwenkbar ist und dort gegen ein Widerlager zur Anlage kommt, wobei in der Stellung 1 von den verschiedenen Antrieben eines Mähdreschers zumindest der Antrieb für ein Schneidwerk des Mähdreschers ausgeschaltet, in der Stellung II der Antrieb für das Schneidwerk eingeschaltet und in der Stellung III der Antrieb für das Schneidwerk reversiert eingeschaltet ist. Auf diese Weise ist ein Schnellstop geschaffen, und eine Betätigung des Reversierers ist bei laufendem Schneidwerk oder Elevatorförderer ausgeschlossen, wobei die bekannte Einhebelstellvonichtung so eingesetzt wird, daß bei einer Bewegung des Hebels in eine Richtung Dreschgut eingezogen wird und bei einer Bewegung des Hebels in die andere Richtung Dreschgut ausgestoßen wird. Beschädigungen infolge unsachgemäßer Hebelbetätigung sind unmöglich.This object has been achieved in that the lever with the action of a spring can be pivoted from position II to position I and comes to rest against an abutment, in position 1 of the various drives of a combine harvester at least the drive for Cutting unit of the combine is switched off, the drive for the cutting unit is switched on in position II and the drive for the cutting unit is switched on in reverse position III. In this way, a quick stop is created, and actuation of the reverser is ruled out when the cutting unit or elevator conveyor is running, the known single-lever actuating device being used in such a way that threshing material is drawn in when the lever moves in one direction and when the lever moves in the other Is thrown out in the direction of threshing material. Damage due to improper lever operation is impossible.

Im einzelnen kann der Hebel selbsttätig in die Stellung I, in der der Antrieb für das Schneidwerk und gegebenenfalls für den Elevatorförderer abgeschaltet ist, schnellen, wenn Verstopfungen auftreten. Schnellstops als solche sind im Mähdrescherbau gebräuchlich.In particular, the lever can automatically move into position I, in which the drive for the cutting unit and possibly for the elevator conveyor is switched off, if blockages occur. Quick stops as such are common in combine harvester manufacturing.

Sperren lassen sich in einfacher Weise dann erreichen, wenn im Bereich des Führungsschlitzes bzw. auf einer äußeren konzentrisch zum Führungsschlitz angeordneten Führungsbahn des Stellorgans Rasterstellen zur Aufnahme einer am Hebel schwenkbar gelagerten Klinke vorgesehen sind, wobei die Rasterstellen als Nuten ausgebildet und den Stellungen II und 111 des Hebels zugeordnet sind. Zum Lösen der Sperre kann der Hebel zur Aufnahme eines mit der Klinke verbundenen Gestänges eine Axialbohrung aufweisen und auf dem Gestänge zwischen der Klinke und dem unteren Ende des Hebels eine Feder vorgesehen sein. Hierbei ist die Feder so anzuordnen, daß die Klinke selbsttätig in die der Stellung II zugeordnete Nut einrastet und bei Drükken des Gestänges ausrastet, so daß dann der Hebel; ohne daß er manuell verschwenkt werden müßte, in die Stellung I zurückschnellt, in der er gegen das Widerlager anliegt und der Antrieb abgestellt ist.Locking can be achieved in a simple manner if grid points are provided in the region of the guide slot or on an outer guide track of the actuating element arranged concentrically to the guide slot, for receiving a pawl pivotably mounted on the lever, the grid points being designed as grooves and positions II and 111 are assigned to the lever. To release the lock, the lever for receiving a linkage connected to the pawl can have an axial bore and a spring can be provided on the linkage between the pawl and the lower end of the lever. Here, the spring is to be arranged so that the pawl automatically engages in the groove assigned to position II and disengages when the linkage is pressed, so that the lever; without it having to be pivoted manually, it snaps back into position I, in which it rests against the abutment and the drive is switched off.

Die Sicherheit wird weiter dadurch verbessert, daß am Stellorgan mit Abstand zum Widerlager ein Anschlag vorgesehen ist, der mit dem Widerlager einen z-förmigen Durchlaßweg für die Klinke bildet. Auf diese Weise wird die Bedienungsperson gezwungen, den Hebel bzw. seine Klinke manuell durch den Durchlaßweg zu führen, wozu ein nochmaliges Aufwärtsschwenken der Klinke erforderlich ist.Security is further improved in that a stop is provided on the actuator at a distance from the abutment, which forms a z-shaped passage for the pawl with the abutment. In this way, the operator is forced to manually guide the lever or its pawl through the passage path, for which purpose the pawl has to be pivoted upward again.

Zweckmäßig kann das Stellorgan als doppelarmiger Hebel ausgebildet sein, wobei der eine Hebelarm den Führungsschlitz und die Führungsbahn aufweist und an den anderen Hebelarm im Schaltzug zum Betätigen einer Kupplung angeschlossen ist. Vorteilhaft ist noch an den Hebelarm mit dem Führungsschlitz ein Schaltzug zum Betätigen eines Steuerventils eines hydraulischen Arbeitsorganes angeschlossen.The actuator can expediently be designed as a double-armed lever, one lever arm having the guide slot and the guideway and being connected to the other lever arm in the shifting cable for actuating a clutch. A shift cable for actuating a control valve of a hydraulic working element is also advantageously connected to the lever arm with the guide slot.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert. Es zeigt :

  • Fig. 1 eine schematische Darstellung einer Einhebel-Stellvorrichtung zur Betätigung zweier verschiedener Antriebsvorrichtungen eines Kraftfahrzeuges bzw.
    eines Mähdreschers in Neutralstellung,
  • Fig. 2 die Einhebel-Stellvorrichtung in Arbeitsstellung,
  • Fig. 3 die Einhebel-Stellvorrichtung in Reversierstellung.
The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. It shows :
  • Fig. 1 is a schematic representation of a single lever actuator for actuating two different drive devices of a force vehicle or
    a combine in neutral position,
  • 2 the single-lever adjusting device in the working position,
  • Fig. 3, the single lever actuator in the reversing position.

In der Zeichnung ist in Fig. 1 mit 10 eine Einhebel-Stellvorrichtung zur Schaltung von zwei in der Zeichnung nicht dargestellten Kupplungen und eines Hydromotors eines Kraftfahrzeuges, beispielsweise eines Mähdreschers, bezeichnet. Die Einhebel-Stellvorrichtung 10 besteht aus einem Hebel 12, der aus einem zylindrischen Rohr 14 gebildet ist, das an einem Hebelarm 16 fest angeordnet ist. Zur schwenkbaren Aufnahme des Hebelarmes 16 ist im Mähdrescher eine Halterung 18 vorgesehen, auf der der Hebelarm 16 mittels eines Schwenkzapfens 20 gelagert ist. An den Hebelarm 16 schließt sich ein zweiter Hebelarm bzw. ein Stellteil 22 an, das mit einer in der Zeichnung nicht dargestellten Schaltkupplung verbunden ist. Die Schaltkupplung sitzt zwischen einem ebenfalls in der Zeichnung nicht dargestellten Antrieb für ein Schneidwerk und für einen Schrägförderer und einem Riemengetriebe, das über weitere Riemengetriebe mit der Verbrennungskraftmaschine des Mähdreschers verbunden ist. In der in Fig. 1 dargestellten Stellung befindet sich der Hebel 12 in seiner Neutralstellung, d. h. die über das Stellteil 22 betätigbare Kupplung ist ausgerückt, so daß der Antrieb für das Schneidwerk unterbrochen ist. Eine zweite im Mähdrescher vorgesehene Halterung 24 dient zur schwenkbaren Aufnahme eines Stellorganes 26, das hierzu über einen Schwenkzapfen 28 mit der Halterung 24 verbunden ist. Das Stellorgan 26 ist ebenfalls als zweiarmiger Hebelarm ausgebildet, wobei der untere kleinere Hebelarm 30 mit einem Stellteil bzw. Schaltzug 32 verbunden ist, über den eine ebenfalls in der Zeichnung nicht dargestellte Kupplung betätigbar ist, die zwischen dem Antrieb für das Schneidwerk und den Schrägförderer für einen Mähdrescher und einem Hydromotor zum Reversieren des Antriebs angeordnet ist. Nimmt der Hebel 12 die in Fig. 1 dargestellte Stellung ein, so ist die über den Schaltzug 32 betätigbare Kupplung ebenfalls ausgekuppelt und der Antrieb unterbrochen. Der an den Hebelarm 30 angeschlossene obere Hebelarm 34 besteht aus einem Kreisbogensegment mit einer äußeren Führungsbahn 36, in der zwei mit Abstand zueinander angeordnete Nuten 38 und 40 eingelassen sind. Die eine Nut 40 befindet sich zwischen dem Schwenkzapfen 28 und einem aus der Führungsbahn 36 herausragenden Widerlager 42, gegen das eine am Hebelarm 16 schwenkbar gelagerte Klinke 44 zur Anlage bringbar ist. Anstelle des Widerlagers 42 kann neben der Nut 40 ebenfalls eine dritte Nut vorgesehen werden. Die Klinke 44 ist mittels eines Bolzens 46 an der einen Seite des Hebelarmes 16 befestigt. Das freie Ende der Klinke 44 besteht aus einer nach innen rechtwinklig abgebogenen Nase 48, die gegen das Widerlager 42 in der Neutralstellung der Einhebel- Stellvorrichtung 10 zur Anlage kommt. Das der Nase 48 gegenüberliegende Ende der Klinke 44 ist an ein Gestänge 50 beweglich angeschlossen, das in dem Rohr 14 des Hebels 12 verschiebbar aufgenommen ist und an seinem oberen Ende einen Bedienungsknopf 52 aufweist, über den der Hebel 12 um seinen Schwenkzapfen 20 verschwenkt und über den das Gestänge 50 in Axialrichtung des Rohres 14 verstellt werden kann. Der Bedienungsknopf 52 weist einen Ansatz 54 auf, der in das obere Ende des Rohres 14 hineinragt und somit das Gestänge 50 in dem Rohr 14 radial fixiert. Zwischen dem unteren Ende des Rohres 14 und der Oberfläche der Klinke 44 sitzt auf dem Gestänge 50 eine Zugfeder 56, die die Klinke 44 derart verschwenken will, das die Nase 48 in die Nut 38 bzw. 40 einrastet oder gegen die Oberfläche der Führungsbahn 36 gedrückt wird. Im Bereich des Widerlagers 42 befindet sich ein Anschlag 49, gegen den die Nase 48 zur Anlage kommt und der eine weitere Verstellung des Hebels 12 verhindert, wenn die Nase 48 über die Klinke 44 nach oben verschwenkt worden ist. Der Anschlag 49 ist derart mit Abstand zur Führungsbahn 36 angeordnet, daß die Nase ,48 sich durch den Zwischenraum (siehe Pfeil 80) zwischen dem Anschlag 49 und der Führungsbahn 36 bis zum Widerlager 42 bewegen kann. Dadurch wird gewährleistet, daß der Hebel 12 nicht ohne weiteres aus seiner Stellung II über die Stellung I hinaus in eine Stellung 111 verstellt werden kann. Erst wenn die Nase 48 gegen das Widerlager 42 zur Anlage kommt, kann die Nase 48 über die Klinke 44 nach oben hinter den Anschlag 49 verschwenkt und dann der Hebel 12 in die Stellung 111 gebracht werden.In the drawing, 10 in FIG. 1 denotes a single-lever actuating device for switching two clutches (not shown in the drawing) and a hydraulic motor of a motor vehicle, for example a combine harvester. The single-lever adjusting device 10 consists of a lever 12 which is formed from a cylindrical tube 14 which is fixedly arranged on a lever arm 16. For the pivotable mounting of the lever arm 16, a holder 18 is provided in the combine, on which the lever arm 16 is mounted by means of a pivot pin 20. A second lever arm or an adjusting part 22 connects to the lever arm 16 and is connected to a clutch, not shown in the drawing. The clutch is seated between a drive, also not shown in the drawing, for a cutting unit and for an inclined conveyor and a belt transmission, which is connected to the internal combustion engine of the combine harvester via further belt transmissions. In the position shown in FIG. 1, the lever 12 is in its neutral position, ie the clutch which can be actuated via the actuating part 22 is disengaged, so that the drive for the cutting mechanism is interrupted. A second bracket 24 provided in the combine harvester serves to pivotally accommodate an actuator 26 which is connected to the bracket 24 via a pivot pin 28. The actuator 26 is also designed as a two-armed lever arm, the lower, smaller lever arm 30 being connected to an actuating part or shifting cable 32, via which a clutch, also not shown in the drawing, can be actuated, which between the drive for the cutting unit and the inclined conveyor for a combine harvester and a hydraulic motor for reversing the drive is arranged. If the lever 12 assumes the position shown in FIG. 1, the clutch which can be actuated via the shifting cable 32 is also disengaged and the drive is interrupted. The upper lever arm 34 connected to the lever arm 30 consists of a circular arc segment with an outer guideway 36, in which two grooves 38 and 40 arranged at a distance from one another are embedded. One groove 40 is located between the pivot pin 28 and an abutment 42 protruding from the guideway 36, against which a pawl 44 pivotably mounted on the lever arm 16 can be brought into contact. Instead of the abutment 42, a third groove can also be provided in addition to the groove 40. The pawl 44 is fastened on one side of the lever arm 16 by means of a bolt 46. The free end of the pawl 44 consists of an inwardly bent nose 48, which comes to bear against the abutment 42 in the neutral position of the single-lever adjusting device 10. The nose 48 opposite end of the pawl 44 is movably connected to a linkage 50 which is slidably received in the tube 14 of the lever 12 and has an operating button 52 at its upper end, via which the lever 12 pivots about its pivot pin 20 and over which the linkage 50 can be adjusted in the axial direction of the tube 14. The control button 52 has a projection 54 which projects into the upper end of the tube 14 and thus radially fixes the linkage 50 in the tube 14. Between the lower end of the tube 14 and the surface of the pawl 44 sits a tension spring 56 on the linkage 50, which wants to pivot the pawl 44 in such a way that the nose 48 engages in the groove 38 or 40 or pressed against the surface of the guideway 36 becomes. In the area of the abutment 42 there is a stop 49, against which the nose 48 comes to rest and which prevents further adjustment of the lever 12 when the nose 48 has been pivoted upwards via the pawl 44. The stop 49 is so spaced from the guide track 36 so that the nose 48 can move up to the abutment 36 through the gap 42 (see arrow 80) between the stop 49 and the guide track. This ensures that the lever 12 cannot be easily adjusted from its position II beyond position I to a position 111. Only when the nose 48 comes to bear against the abutment 42 can the nose 48 be pivoted upward behind the stop 49 via the pawl 44 and then the lever 12 can be brought into the position 111.

In dem gekrümmten Hebelarm 34 ist ein Führungsschlitz 60 vorgesehen, der zur Aufnahme eines am Hebelarm 16 angeordneten Nockens bzw. einer Rolle 62 dient. Die Rolle 62 ist mittels eines Schraubenbolzens 64 und einer an der Außenseite des Hebelarmes 34 entlanglaufenden Führungsscheibe 68 gesichert, so daß die Rolle 62 nicht seitlich aus dem Führungsschlitz 60 herausgeführt werden kann. Der in dem Hebelarm 34 vorgesehene Führungsschlitz 60 besteht aus zwei Kurvenabschnitten 70 und 72. Der Kurvenabschnitt 70 erstreckt sich zwischen einer unteren Stirnseite 74 des Hebelarmes 34 bis hinter die Nut 38. Der Kurvenabschnitt 70 ist konzentrisch zur Schwenkachse des Schwenkzapfens 28 angeordnet. Der Radius für den Kurvenabschnitt 70 ist in Fig. 2 mit R1 angegeben. An den Kurvenabschnitt 70 schließt sich ein kleinerer Kurvenabschnitt 72 an, dessen Radius R2 zwischen den Punkten A und B mit Bezug auf die Schwenkachse des Schwenkzapfens 28 kontinuierlich zunimmt. Wird beispielsweise die Rolle 62 aus dem Kurvenabschnitt 70 in den Kurvenabschnitt 72 hinein be- ' wegt, so wird das Stellorgan 26 automatisch mit verstellt und somit gleichzeitig der Hebelarm 30 und der an den Hebelarm angeschlossene Schaltzug 32 zur Betätigung der Kupplung. Das Stellorgan 26 ist damit über den Hebel 12 zwanggeführt. An den Hebelarm 34 greift ferner zwischen dem Schwenkzapfen 28 des Stellorganes 26 und der Rolle 62 ein drittes Stellteil bzw. ein Schaltzug 76 an, der bei Verstellung des Stellorganes 26 automatisch mit verstellt wird. Über das Stellteil 76 läßt sich ein Wegeventil für den Hydromotor für den Rücklauf bzw. die Reversierung des Schrägförderers und des Schneidwerkes beeinflussen.A guide slot 60 is provided in the curved lever arm 34 and serves to receive a cam or a roller 62 arranged on the lever arm 16. The roller 62 is secured by means of a screw bolt 64 and a guide disk 68 running along the outside of the lever arm 34, so that the roller 62 cannot be guided out of the side of the guide slot 60. The guide slot 60 provided in the lever arm 34 consists of two cam sections 70 and 72. The cam section 70 extends between a lower end face 74 of the lever arm 34 to behind the groove 38. The cam section 70 is arranged concentrically with the pivot axis of the pivot pin 28. The radius for the curve section 70 is indicated by R 1 in FIG. 2. The curve section 70 is followed by a smaller curve section 72, the radius R 2 of which increases continuously between points A and B with respect to the pivot axis of the pivot pin 28. If, for example, the roller 62 is moved out of the cam section 70 into the cam section 72, the actuator 26 is automatically also adjusted, and thus the lever arm 30 and the shifting cable 32 connected to the lever arm for actuating the clutch. The actuator 26 is thus positively guided via the lever 12. The lever arm 34 also engages between the Pivots 28 of the actuator 26 and the roller 62 on a third actuator or a shift cable 76, which is automatically adjusted when the actuator 26 is adjusted. A control valve for the hydraulic motor for the return or the reversing of the inclined conveyor and the cutting mechanism can be influenced via the control part 76.

Zwischen dem Stellteil 22 des Hebels 12 und der Halterung 18 zur Aufnahme des Hebels 12 ist eine Zugfeder 78 vorgesehen, die das Stellteil 22 im entgegengesetzten Uhrzeigerdrehsinn verschwenkt und dabei die Nase 48 gegen das Widerlager 42 drückt, so daß der Hebel 12 seine in Fig. 1 dargestellte Neutralstellung I beibehält.Between the actuating part 22 of the lever 12 and the holder 18 for receiving the lever 12, a tension spring 78 is provided, which pivots the actuating part 22 in the counterclockwise direction and thereby presses the nose 48 against the abutment 42, so that the lever 12 is its in Fig. 1 shown neutral position I maintains.

. In den Fig. 2 und 3 sind die verschiedenen Stellungen des Hebels 12 dargestellt. gibt die Neutralstellung, II die Betriebsstellung des Schneidwerkes sowie des Schrägförderers für die Schneidwerksvorrichtung des Mähdreschers und III die Reversierstellung wieder. Soll der Hebel 12 von seiner Neutralstellung I in die Betriebsstellung II verschwenkt werden, so braucht dieser lediglich nach oben gezogen zu werden, wobei die Nase 48 der Klinke 44 auf der Führungsbahn 36 so lange entlanggleitet, bis sie in die Nut 38 des Stellorganes 26 einrastet. Bei Verschwenken des Hebels 12 in die Betriebsstellung II wird die Kupplung für das Schneidwerk und den Schrägförderer eingerückt, so daß der Antrieb zu dem über den Verbrennungsmotor angetriebenen Zugmittelgetriebe hergestellt ist und Schneidwerk und Schrägförderer normal arbeiten können. Treten dabei übermäßige Verstopfungen im Schrägfördergehäuse des Mähdreschers auf, so läßt sich der Hebel 12 von seiner Betriebsstellung II in die Reversierstellung III verstellen. Hierzu wird der Bedienungsknopf 52 nach unten gedrückt, so daß die Nase 48 die Nut 38 freigibt. Damit Beschädigungen an den Antriebsorganen vermieden werden, soll eine direkte Verstellung des Hebels 12 aus der Stellung II in die Stellung III verhindert werden. Hierzu ist auf der Führungsbahn 36 das Widerlager 42 vorgesehen, gegen das die Klinke 44 zur Anlage kommt. Durch erneutes Drücken des Bedienungsknopfes 52 wird die Klinke 44 nach oben hinter den Anschlag 49 verschwenkt und kann dann an dem Widerlager mit dem Hebel 12 vorbei bewegt werden, bis die Nase 48 in die sich an das Widerlager 42 anschließende Nut 40 einrastet. Der Anschlag 49 bewirkt bei der Verschwenkung des Hebels 12 aus der Betriebsstellung II in die Reversierstellung III, daß der Hebel 12 nur nach kurzem Anhalten in der Neutralstellung I über diese Stellung hinaus verschwenkt werden kann, da auch bei vollständig nach oben geschwenkter Nase 48 diese gegen den Anschlag 49 zur Anlage kommen würde. Nur wenn die Nase 48 zuerst gegen das Widerlager 42 zur Anlage kommt, kann die Nase 48 über die Klinke 44 vollständig nach oben hinter den Anschlag 49 verschwenkt werden und somit der Hebel 12 in die Stellung III verstellt werden. Hierdurch lassen sich Beschädigungen an der Antriebsvorrichtung und an dem Reversiergetriebe ausschalten, da ein zu schnelles Verstellen von der Stellung II in die Stellung III bzw. umgekehrt ausgeschlossen ist. Bei Verstellung des Hebels 12 in die Stellung III wird auch der Nocken bzw. die Rolle 62 in den Kurvenabschnitt 72 des Führungsschlitzes 60 bewegt und somit das Stellorgan 26 automatisch mit verstellt. Hierdurch wird auch über das Stellteil 76 das dem Stellteil 76 zugeordnete Wegeventil in eine Durchflußstellung verstellt, so daß der Hydromotor zum Antrieb des Reversiergetriebes mit Druckmittel versorgt werden kann. Gleichzeitig wird bei Einnahme der Stellung 111 die Kupplung zwischen dem Reversiergetriebe und der Welle bzw. an der Antriebsvorrichtung für das Schneidwerk und für den Schrägförderer eingerückt, so daß Schneidwerk und Schrägförderer umgekehrt angetrieben werden können und somit sich der Gutsstau im Schrägfördergehäuse auflösen kann. Aus Vorstehendem ergibt sich, daß mittels der Einhebel-Stellvorrichtung 10 auf einfache Weise eine Antriebsänderung für das Schneidwerk sowie für den Schrägförderer in kürzester Zeit durchgeführt werden kann, ohne daß bei Verstellung des Hebels 12 aus der Stellung II in die Stellung III eine Beschädigung der Antriebsorgane zu befürchten ist, da eine zu schnelle Verstellung des Hebels 12 durch das Widerlager 42 und den Anschlag 49 blokkiert wird.. 2 and 3, the various positions of the lever 12 are shown. indicates the neutral position, II the operating position of the cutting unit and the inclined conveyor for the cutting device of the combine harvester and III the reversing position. If the lever 12 is to be pivoted from its neutral position I into the operating position II, it only needs to be pulled upwards, the nose 48 of the pawl 44 sliding along the guide track 36 until it engages in the groove 38 of the actuator 26 . When the lever 12 is pivoted into the operating position II, the clutch for the cutting mechanism and the inclined conveyor is engaged so that the drive to the traction mechanism drive driven by the internal combustion engine is produced and the cutting mechanism and inclined conveyor can operate normally. If excessive blockages occur in the inclined conveyor housing of the combine harvester, the lever 12 can be adjusted from its operating position II into the reversing position III. For this purpose, the control button 52 is pressed down so that the nose 48 releases the groove 38. In order to avoid damage to the drive elements, a direct adjustment of the lever 12 from position II to position III is to be prevented. For this purpose, the abutment 42 is provided on the guide track 36, against which the pawl 44 comes to rest. By pressing the control button 52 again, the pawl 44 is pivoted upward behind the stop 49 and can then be moved past the abutment with the lever 12 until the lug 48 engages in the groove 40 adjoining the abutment 42. The stop 49 causes when the lever 12 is pivoted from the operating position II into the reversing position III that the lever 12 can only be pivoted beyond this position after a brief stop in the neutral position I, since even with the nose 48 completely pivoted upwards, this counter the stop 49 would come to rest. Only when the nose 48 comes to rest against the abutment 42 can the nose 48 be pivoted completely upward behind the stop 49 via the pawl 44 and thus the lever 12 can be adjusted to the position III. In this way, damage to the drive device and to the reversing gear mechanism can be eliminated, since it is impossible to move too quickly from position II to position III or vice versa. When the lever 12 is moved into the position III, the cam or the roller 62 is also moved into the curve section 72 of the guide slot 60 and the actuator 26 is thus also automatically adjusted. As a result, the directional control valve associated with the control part 76 is also adjusted to a flow position via the control part 76, so that the hydraulic motor for driving the reversing gear can be supplied with pressure medium. At the same time the position 111 engages the clutch between the reversing gear and the shaft or on the drive device for the cutting unit and for the feeder, so that the cutting unit and feeder can be driven in reverse and thus the material jam in the feeder housing can dissolve. From the above it follows that a change in drive for the cutting unit and for the feeder can be carried out in a very short time by means of the single-lever adjusting device 10, without damage to the drive elements when the lever 12 is moved from the position II to the position III It is to be feared that too rapid an adjustment of the lever 12 is blocked by the abutment 42 and the stop 49.

Claims (7)

1. Single lever setting device (10) with a lever (12) mounted on a pivot pin (20) and a pivotally mounted setting member (26) which has a guide slot (60), which consists of a curve section (70) extending concentric with the pivot pin (20) and a curve section (72) angled with respect thereto, and in which the lever (12) is so guided that, on entry of the lever (12) into the angled curve section (72) the setting member (26) is pivoted, wherein the lever (12) can assume at least three positions (I, II, III) and the position I is associated with the end of the concentric curve section (70) to which the angled curve section (72) is connected, the position II is associated with the other end of the concentric curve section (70) and the section III is associated with the angled curve section (72), characterized in that the lever (12) is pivotable by the action of a spring (78) out of the position II into the position I and there comes into position against an abutment (42), wherein in the position I, of the various drives of a combine harvester, at least the drive for a cutter mechanism of the combine harvester is switched out, in the position 11 the drive for the cutter mechanism is switched in and in the position III the drive for the cutter mechanism is switched into reverse.
2. Single lever setting device according to claim 1, characterized in that, in the region of the guide slot (60) or on an outer guide track (36) arranged concentric with the guide slot of the setting member (26), detent positions are provided for reception of a pawl (44) pivoted on the lever (12).
3. Single lever setting device according to claim 2, characterized in that the detent positions are formed as grooves (38, 40) and are associated with the positions II and III of the lever (12).
4. Single lever setting device according to one or more of the preceding claims, characterized in that the lever (12) has a axial bore for reception of a rod (50) connected to the pawl (44) and a spring (56) is provided on the rod (50) between the pawl (44) and the lower end of the lever (12).
5. Single lever setting device according to one or more of the preceding claims, characterized in that a stop (49) is provided on the setting member (26) spaced from the abutment (42) and which forms with the abutment (42) a Z-shaped passage for the pawl (44).
6. Single lever setting device according to one or more of the preceding claims, characterized in that the setting member (26) is formed as a two- armed lever, wherein the one lever arm (34) comprises the guide slot (60) and the guide track (36) and a puller (32) for actuating a clutch is connected to the other lever arm (30).
7. Single lever setting device according to claim 6, characterized in that a puller (76) for actuating a control valve of a hydraulic actuator is connected to the lever arm (34) with the guide slot (60).
EP84105076A 1984-05-05 1984-05-05 Single lever setting device Expired EP0160719B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP84105076A EP0160719B1 (en) 1984-05-05 1984-05-05 Single lever setting device
DE8484105076T DE3479354D1 (en) 1984-05-05 1984-05-05 Single lever setting device
US06/725,182 US4641545A (en) 1984-05-05 1985-04-19 Single lever control arrangement
CA000480188A CA1243586A (en) 1984-05-05 1985-04-26 Single lever control arrangement
DK198885A DK198885A (en) 1984-05-05 1985-05-02 Single-lever-setting device
BR8502108A BR8502108A (en) 1984-05-05 1985-05-03 SINGLE LEVER COMMAND INSTALLATION
ES542826A ES8606685A1 (en) 1984-05-05 1985-05-03 Single lever setting device.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84105076A EP0160719B1 (en) 1984-05-05 1984-05-05 Single lever setting device

Publications (2)

Publication Number Publication Date
EP0160719A1 EP0160719A1 (en) 1985-11-13
EP0160719B1 true EP0160719B1 (en) 1989-08-09

Family

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Application Number Title Priority Date Filing Date
EP84105076A Expired EP0160719B1 (en) 1984-05-05 1984-05-05 Single lever setting device

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US (1) US4641545A (en)
EP (1) EP0160719B1 (en)
BR (1) BR8502108A (en)
CA (1) CA1243586A (en)
DE (1) DE3479354D1 (en)
DK (1) DK198885A (en)
ES (1) ES8606685A1 (en)

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Also Published As

Publication number Publication date
DE3479354D1 (en) 1989-09-14
ES8606685A1 (en) 1986-04-16
DK198885D0 (en) 1985-05-02
ES542826A0 (en) 1986-04-16
EP0160719A1 (en) 1985-11-13
DK198885A (en) 1985-11-06
CA1243586A (en) 1988-10-25
BR8502108A (en) 1985-12-31
US4641545A (en) 1987-02-10

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