EP3050607B1 - Model tractor with a coupling for holding at least one attachment and/or trailer - Google Patents

Model tractor with a coupling for holding at least one attachment and/or trailer Download PDF

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Publication number
EP3050607B1
EP3050607B1 EP15197924.2A EP15197924A EP3050607B1 EP 3050607 B1 EP3050607 B1 EP 3050607B1 EP 15197924 A EP15197924 A EP 15197924A EP 3050607 B1 EP3050607 B1 EP 3050607B1
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EP
European Patent Office
Prior art keywords
piston
linkage
cylinder unit
model vehicle
accordance
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EP15197924.2A
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German (de)
French (fr)
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EP3050607A1 (en
Inventor
Marco Stumpf
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Sieper GmbH
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Sieper GmbH
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26—Details; Accessories
    • A63H17/264—Coupling mechanisms
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/05—Trucks; Lorries
    • A63H2017/055—Trucks; Lorries for agricultural use

Definitions

  • the invention relates to a model vehicle, in particular a model tractor, with at least one coupling for receiving at least one attachment and / or trailer, wherein the coupling comprises at least one lower link and at least one upper link for attachment of the attachment and / or trailer and the one or more attachment points of the upper link and / or lower link are height adjustable.
  • Model tractors are known from the prior art, can be attached to the front or rear attachments or trailers.
  • Such couplings have an upper and / or lower link, which can be adjusted by appropriate guides and allow a three-point connection with the object to be attached.
  • DE 20 2004 001294 U1 describes a model vehicle with a coupling for receiving a trailer, wherein the coupling comprises at least one lower link and at least one upper link for attachment of the trailer, and the attachment points of the upper link and / or lower link are height adjustable.
  • the lower links can be adjusted or pivoted on adjustment means on a circular path to a height adjustment of the attachment points for receiving the attachment to to guarantee.
  • the upper link is regularly made of a part having at one end a through hole for attachment to the chassis of the model tractor. At the other end a hook is formed, in which the attachments can be engaged. Also, the top link is attached to the chassis with a pin and can thereby move on a circular path.
  • a solution for overcoming the aforementioned problem is based on fixed couplings with standardized connection dimensions.
  • the rigid lower link and the chassis consist of a zinc part
  • the upper link is mounted as a plastic part fixed to the chassis.
  • the plastic provides a degree of elasticity to mount the attachments.
  • the present invention thus has the object, a generic coupling to the effect develop further so that it is not only height adjustable, but also allows a tilt adjustment of the attached object.
  • model vehicle according to the features of claim 1.
  • Advantageous embodiments of the model vehicle according to the invention are the subject of the dependent subclaims.
  • a model vehicle in particular a model tractor, which has at least one coupling for receiving at least one attachment and / or trailer.
  • the coupling comprises at least one lower link and at least one upper link, both lower and upper links are equipped with appropriate attachment points for mounting an attachment and / or trailer.
  • the design of the lower link and / or upper link is such that the attachment points of the upper link and / or lower link are height adjustable.
  • the top link and / or the lower link is or are adjustable in length. This creates the opportunity to vary in addition to a height adjustment additionally the inclination of the mounted attachment and / or trailer. It is thus possible to align different cultivation objects on the chassis so that they occupy the predetermined position. In addition, over the height adjustment different operating positions, such as. the driving positions or the working position on the field can be simulated.
  • the coupling with lower and upper link is based on the model of a known from reality three-point linkage, with two attachment points of the attachment over the lower links and an attachment point on the top link are created.
  • the lower links are in this case with horizontal, transverse to the direction of rotation oriented pivot shafts, such as bolts or pins, articulated pivotally on the vehicle or chassis.
  • connection means preferably latching hook, for receiving an attachment and / or trailer provided.
  • the upper link is preferably mounted centrally, which is also hinged with a horizontal pivot axis, preferably in the form of a pin or bolt, pivotally mounted on the chassis of the model vehicle.
  • the free end of the upper link forms the third point for attachment of the attachment or trailer.
  • the length adjustability of the upper link or the lower link is realized via a piston-cylinder unit.
  • the top link or the lower link is formed completely by the piston-cylinder unit.
  • the attachment point of the attachment and / or trailer is on the cylinder side.
  • the cylinder base comprises a corresponding latching hook for receiving the attachment and / or trailer.
  • At least one fixing means is provided on the piston-cylinder unit of the upper link for fixing the extension of the piston rod.
  • the fixing means is based in particular on a cylinder-side locking means, which engages in a corresponding latching on the piston rod.
  • the latching is designed such that a latching of the cylinder with different Ausschubpositionen is possible. This allows the attachment to operate with different angles of inclination on the model vehicle.
  • the clutch can thus be adjusted universally to any attachments.
  • the height adjustment, in particular the pivoting movement of the or the lower link is accomplished via a lower link-piston-cylinder unit.
  • each lower link has its own lower link piston-cylinder unit or, alternatively, both lower links can be actuated via a common lower-link piston-cylinder unit.
  • the lower link piston-cylinder unit comprises at least one fixing means to determine the extension stroke of the lower-link piston-cylinder unit.
  • the fixing means is preferably designed in the form of a locking means for determining the extension.
  • the latching means is provided on the cylinder unit and can be latched with a corresponding latching on the chassis or a chassis cover.
  • One possible construction for connecting the lower link piston-cylinder unit to the at least one lower link is that the lower-link piston-cylinder unit is articulated on the one hand to the vehicle frame and, on the other hand, fastened to at least one lift arm.
  • the lift arm is pivotally mounted on the vehicle frame and connected directly or indirectly with the at least one lower link, so that an adjusting movement of the lower link simultaneously triggers a movement of the lift arm.
  • the lifting arm is pivoted upward by an adjusting movement of the lower link, whereby an extension movement of the lower link piston-cylinder unit is carried out.
  • connection between the lifting arm and at least one lower link can be done for example by means of at least one connecting strut.
  • FIGS. 1 to 7 show the chassis 2 of a model tractor according to the invention including the clutch for receiving an attachment and / or trailer.
  • the FIGS. 1 to 4 show an overall view of the chassis 2, while the FIGS. 5 to 7 reproduce enlarged pictures of the coupling.
  • the invention will be explained below with reference to these representations, wherein the following reference numerals for all FIGS. 1 to 7 be valid.
  • the structure of the clutch is based on the principle of a three-point linkage.
  • the often referred to as three-point component is located either on the back of the model tractor or alternatively at the front.
  • the name Three-point is suitable because the attachment is connected to the tractor at three points.
  • the illustration shows a coupling mounted at the rear of the vehicle, but the construction can be used without restriction for a coupling on the vehicle front side.
  • the clutch assembly comprises two levers mounted deep at the rear of the tractor and extending longitudinally, i. extend in the vehicle direction. These are referred to as lower link 1.
  • the lower links 1 are mounted with horizontal pins 12 on the chassis 2 of the tractor pivotable about a horizontal axis. At the free ends of the lower link 1 are latching hooks 13 with upwardly oriented openings for receiving an attachment.
  • upper link 14 a further lever is mounted centrally, which is referred to as upper link 14.
  • the free end of the upper link 14 provides the third attachment point of the three-point suspension, which is also designed as a latching hook 15 and the opening facing down.
  • the two lower links 1 are thus attached to the chassis 2 pivotable about a horizontal axis. Between the chassis 2 and the upper cover 3 of the chassis 2 of the lifting arm 4 is rotatably mounted so that it is also pivotable about a horizontal axis upwards. As soon as the lower link 1 is pivoted upwards, the lifting arm 4 is actuated via the connecting strut 5 and likewise pivoted. If the lower link 1 is pivoted upwards, pivoting movement of the associated lifting arm 4 likewise occurs upwards.
  • a lower link piston-cylinder unit is articulated to the piston 7.
  • the cylinder 6 is in operative connection with the lifting arm 4.
  • By an adjusting movement of the lifting arm 4 of the lifting arm 4 fixed cylinder 6 is displaced relative to the guided in it piston 7 in the vertical direction upwards.
  • a snap connection from the cylinder 6 engages in the latching hooks of the lower cover 8 of the chassis 2, so that the extension length of the piston 7 can be fixed. As soon as a force exerted by the attachment force acts from above on the lower link 1, this is redirected to the cylinder 6 and transmitted by the form-fitting snap connection to the chassis 2.
  • the upper link 14 consists of a further piston-cylinder unit, the piston 9 is fixed by means of a pin 10 rotatable about a horizontal axis on the lower cover 8 of the chassis.
  • the assembly cylinder 11 of the upper link 14 is pushed.
  • a hook 15 for mounting the attachment.
  • the extension stroke of the piston rod 9 can be set.
  • the extension length of the cylinder 11 can be fixed, wherein the locking means of the piston 9 allow a fixation in different extended positions, so that can be set different inclination angle of the attached attachment.
  • the proposed coupling of the model tractor therefore not only allows height adjustment of the mounted attachments on the lower link-piston cylinder unit 6, 7, but also allows on the adjustable length of the upper link 14, a variation of the inclination angle of a mounted object.
  • the coupling construction is not only very simple but can also be produced at low cost.

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  • Agricultural Machines (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Description

Die Erfindung betrifft ein Modellfahrzeug, insbesondere einen Modelltraktor, mit mindestens einer Kupplung zur Aufnahme wenigstens eines Anbaugerätes und/oder Anhängers, wobei die Kupplung wenigstens einen Unterlenker und wenigstens einen Oberlenker zur Befestigung des Anbaugerätes und/oder Anhängers umfasst und der oder die Befestigungspunkte des Oberlenkers und/oder Unterlenkers höhenverstellbar sind.The invention relates to a model vehicle, in particular a model tractor, with at least one coupling for receiving at least one attachment and / or trailer, wherein the coupling comprises at least one lower link and at least one upper link for attachment of the attachment and / or trailer and the one or more attachment points of the upper link and / or lower link are height adjustable.

Aus dem Stand der Technik sind Modelltraktoren bekannt, an deren Front- oder Rückseite Anbaugeräte bzw. Anhänger angehängt werden können. Derartige Kupplungen besitzen einen Ober- und/oder Unterlenker, die sich durch entsprechende Führungen verstellen lassen und eine Dreipunktverbindung mit dem anzuhängenden Gegenstand erlauben. Zum Beispiel DE 20 2004 001294 U1 beschreibt ein Modellfahrzeug mit einer Kupplung zur Aufnahme eines Anhängers, wobei die Kupplung wenigstens einen Unterlenker und wenigstens einen Oberlenker zur Befestigung des Anhängers umfasst, und die Befestigungspunkte des Oberlenkers und/oder Unterlenkers höhenverstellbar sind. Im Einzelnen existieren Konstruktionsvarianten, bei denen sich die Unterlenker über Verstellmittel auf einer Kreisbahn verstellen bzw. verschwenken lassen, um eine Höhenverstellung der Befestigungspunkte zur Aufnahme des Anbaugerätes zu garantieren. Der Oberlenker wird regelmäßig aus einem Teil hergestellt, welches an einem Ende ein Durchgangsloch zur Befestigung am Fahrgestell des Modelltraktors aufweist. Am anderen Ende ist ein Haken angeformt, in dem die Anbauteile eingerastet werden können. Auch der Oberlenker wird mit einem Stift am Fahrgestell befestigt und lässt sich dadurch auf einer Kreisbahn bewegen.Model tractors are known from the prior art, can be attached to the front or rear attachments or trailers. Such couplings have an upper and / or lower link, which can be adjusted by appropriate guides and allow a three-point connection with the object to be attached. For example DE 20 2004 001294 U1 describes a model vehicle with a coupling for receiving a trailer, wherein the coupling comprises at least one lower link and at least one upper link for attachment of the trailer, and the attachment points of the upper link and / or lower link are height adjustable. Specifically, there are design variants in which the lower links can be adjusted or pivoted on adjustment means on a circular path to a height adjustment of the attachment points for receiving the attachment to to guarantee. The upper link is regularly made of a part having at one end a through hole for attachment to the chassis of the model tractor. At the other end a hook is formed, in which the attachments can be engaged. Also, the top link is attached to the chassis with a pin and can thereby move on a circular path.

Durch die unterschiedlichen Dimensionen der Anbauobjekte, die an den bisherigen Traktoren ohne Normung umgesetzt wurden, gibt es gravierende Unterschiede zwischen den Positionen, die die Anbauteile an verschiedenen Traktortypen einnehmen. Aufgrund der fehlenden Standardisierung gestaltet es sich äußert schwierig, Anbauteile passend auf alle Traktoren zu konstruieren, was einen erheblichen Mangel darstellt.Due to the different dimensions of the cultivation objects, which were implemented on the previous tractors without standardization, there are serious differences between the positions that take the attachments to different tractor types. Due to the lack of standardization, it is extremely difficult to construct attachments fitting all tractors, which represents a significant shortcoming.

Eine Lösung zur Umgehung der vorgenannten Problematik basiert auf festen Kupplungen mit standardisierten Anschlussmaßen. Die starren Unterlenker und das Fahrgestell bestehen aus einem Zinkteil, der Oberlenker wird als Kunststoffteil fest am Fahrgestell montiert. Der Kunststoff bietet ein gewisses Grad an Elastizität um die Anbaugeräte montieren zu können. Diese Lösung hat zwar den Vorteil, dass die Anbaugeräte durch die Standardisierung nach dem Anbau an dem Traktor immer dieselbe Position einnehmen. Der Nachteil ist allerdings, dass die verschiedenen Positionen während des Betriebs, wie z.B. Fahrpositionen oder Einsatz auf dem Acker nicht simuliert werden können. Das Anbauteil kann hier lediglich eine einzige fest vorgeschriebene Position einnehmen.A solution for overcoming the aforementioned problem is based on fixed couplings with standardized connection dimensions. The rigid lower link and the chassis consist of a zinc part, the upper link is mounted as a plastic part fixed to the chassis. The plastic provides a degree of elasticity to mount the attachments. Although this solution has the advantage that the implements always take the same position by the standardization after attachment to the tractor. The disadvantage, however, is that the various positions during operation, such as Driving positions or use on the field can not be simulated. The attachment can take here only a single fixed position prescribed.

Allen bisherigen Lösungen für Kupplungen, insbesondere Dreipunkt-Krafthebern, liegt damit das Problem zugrunde, dass diese bei angehängten Anbaugeräten keine Einstellung der Position in der Höhe zulassen und die Neigung der Anbaugeräte generell nicht einstellbar ist.All previous solutions for clutches, especially three-point power lifts, so that the problem is that they allow for attached attachments no adjustment of the position in height and the inclination of the implements is generally not adjustable.

Ausgehend vom zuvor beschriebenen Stand der Technik liegt der vorliegenden Erfindung damit die Aufgabe zugrunde, eine gattungsgemäße Kupplung dahingehend weiterzuentwickeln, so dass diese nicht nur höhenverstellbar ist, sondern zudem eine Neigungsverstellung des angebauten Objektes zulässt.Based on the above-described prior art, the present invention thus has the object, a generic coupling to the effect develop further so that it is not only height adjustable, but also allows a tilt adjustment of the attached object.

Gelöst wird diese Aufgabe durch ein Modellfahrzeug gemäß den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen des erfindungsgemäßen Modellfahrzeuges sind Gegenstand der abhängigen Unteransprüche.This object is achieved by a model vehicle according to the features of claim 1. Advantageous embodiments of the model vehicle according to the invention are the subject of the dependent subclaims.

Gemäß Anspruch 1 wird ein Modellfahrzeug, insbesondere ein Modelltraktor, vorgeschlagen, der mindestens eine Kupplung zur Aufnahme wenigstens eines Anbaugerätes und/oder Anhängers aufweist. Die Kupplung umfasst wenigstens einen Unterlenker sowie wenigstens einen Oberlenker, wobei sowohl Unter- als auch Oberlenker mit entsprechenden Befestigungspunkten zur Montage eines Anbaugerätes und/oder Anhängers ausgestattet sind. Die Ausgestaltung des Unterlenkers und/oder Oberlenkers erfolgt derart, dass die Befestigungspunkte des Oberlenkers und/oder Unterlenkers höhenverstellbar sind.According to claim 1, a model vehicle, in particular a model tractor, is proposed, which has at least one coupling for receiving at least one attachment and / or trailer. The coupling comprises at least one lower link and at least one upper link, both lower and upper links are equipped with appropriate attachment points for mounting an attachment and / or trailer. The design of the lower link and / or upper link is such that the attachment points of the upper link and / or lower link are height adjustable.

Erfindungsgemäß ist zusätzlich vorgesehen, dass der Oberlenker und/oder der Unterlenker längenverstellbar ist bzw. sind. Dadurch wird die Möglichkeit geschaffen, neben einer Höhenverstellung zusätzlich die Neigung des montierten Anbaugerätes und/oder Anhängers zu variieren. Es ist dadurch möglich, unterschiedliche Anbauobjekte so am Fahrgestell auszurichten, dass diese die vorbestimmte Position einnehmen. Zudem können über die Höhenverstellung verschiedene Betriebspositionen, wie z.B. die Fahrpositionen oder die Arbeitsposition auf dem Acker, simuliert werden.According to the invention, it is additionally provided that the top link and / or the lower link is or are adjustable in length. This creates the opportunity to vary in addition to a height adjustment additionally the inclination of the mounted attachment and / or trailer. It is thus possible to align different cultivation objects on the chassis so that they occupy the predetermined position. In addition, over the height adjustment different operating positions, such as. the driving positions or the working position on the field can be simulated.

Die Kupplung mit Unter- und Oberlenker basiert auf dem Vorbild eines aus der Realität bekannten Dreipunkt-Krafthebers, wobei zwei Befestigungspunkte des Anbaugerätes über die Unterlenker und ein Befestigungspunkt über den Oberlenker geschaffen werden. Die Unterlenker werden hierbei mit waagerechten, quer zur Fahrtrichtung orientierten Schwenkwellen, beispielsweise Bolzen oder Stiften, am Fahrzeug bzw. Fahrgestell schwenkbar angelenkt. An den freien Enden der Unterlenker sind entsprechende Verbindungsmittel, vorzugsweise Rasthaken, zur Aufnahme eines Anbaugerätes und/oder Anhängers vorgesehen. Diese stellen die unteren zwei Punkte der Dreipunkt-Verbindung dar.The coupling with lower and upper link is based on the model of a known from reality three-point linkage, with two attachment points of the attachment over the lower links and an attachment point on the top link are created. The lower links are in this case with horizontal, transverse to the direction of rotation oriented pivot shafts, such as bolts or pins, articulated pivotally on the vehicle or chassis. At the free ends of the lower links corresponding connection means, preferably latching hook, for receiving an attachment and / or trailer provided. These represent the lower two points of the three-point connection.

Weiter oberhalb der Unterlenker ist vorzugsweise mittig der Oberlenker angebracht, der ebenfalls mit horizontaler Schwenkachse, vorzugsweise in Form eines Stiftes bzw. Bolzens, schwenkbar am Fahrgestell des Modellfahrzeugs angelenkt ist. Das freie Ende des Oberlenkers bildet den dritten Punkt zur Befestigung des Anbaugerätes bzw. Anhängers.Next above the lower link, the upper link is preferably mounted centrally, which is also hinged with a horizontal pivot axis, preferably in the form of a pin or bolt, pivotally mounted on the chassis of the model vehicle. The free end of the upper link forms the third point for attachment of the attachment or trailer.

Denkbar ist es, dass die Längenverstellbarkeit des Oberlenkers bzw. des Unterlenkers über eine Kolbenzylindereinheit realisiert ist. Idealerweise wird der Oberlenker bzw. der Unterlenker vollständig durch die Kolbenzylindereinheit gebildet. Bevorzugt ist es, wenn der Befestigungspunkt des Anbaugerätes und/oder Anhängers zylinderseitig liegt. Beispielsweise umfasst der Zylinderboden einen entsprechenden Rasthaken zur Aufnahme des Anbaugerätes und/oder Anhängers.It is conceivable that the length adjustability of the upper link or the lower link is realized via a piston-cylinder unit. Ideally, the top link or the lower link is formed completely by the piston-cylinder unit. It is preferred if the attachment point of the attachment and / or trailer is on the cylinder side. For example, the cylinder base comprises a corresponding latching hook for receiving the attachment and / or trailer.

Generell besteht die Möglichkeit, sowohl Unterlenker als auch Oberlenker längenverstellbar auszuführen. Die bevorzugte Variante sieht jedoch vor, dass der Oberlenker längenverstellbar ist. Im Nachfolgenden wird die Erfindung deswegen anhand der bevorzugten Variante erläutert, die nachfolgenden vorteilhaften Ausgestaltungen lassen sich jedoch gleichermaßen auch auf Konstruktionen mit längenverstellbaren Unterlenkern bzw. einer Kombination aus längenveränderlichen Unter- und Oberlenkern anwenden.Generally, it is possible to perform both lower link and upper link length adjustable. The preferred variant, however, provides that the upper link is adjustable in length. In the following, the invention will therefore be explained with reference to the preferred variant, however, the following advantageous embodiments can equally apply to constructions with length-adjustable lower links or a combination of variable-length lower and upper links.

In einer bevorzugten Ausfühungsvariante ist vorgesehen, dass wenigstens ein Fixierungsmittel an der Kolbenzylindereinheit des Oberlenkers zur Fixierung der Ausschublänge der Kolbenstange vorgesehen ist. Dadurch lässt sich die Ausschublänge fixieren und die aufgenommenen Kräfte können über den Oberlenker in das Fahrgestell des Modellfahrzeuges eingeleitet werden. Das Fixierungsmittel basiert insbesondere auf einem zylinderseitigen Rastmittel, dass in eine entsprechende Verrastung an der Kolbenstange eingreift. Bevorzugt ist die Verrastung derart ausgestaltet, sodass eine Verrastung des Zylinders mit unterschiedlichen Ausschubpositionen ermöglicht wird. Dadurch lässt sich das Anbaugerät mit unterschiedlichen Neigungswinkeln am Modellfahrzeug betreiben. Die Kupplung lässt sich dadurch universell auf beliebige Anbaugeräte einstellen.In a preferred embodiment, it is provided that at least one fixing means is provided on the piston-cylinder unit of the upper link for fixing the extension of the piston rod. As a result, the extension length can be fixed and the absorbed forces can be introduced via the upper link in the chassis of the model vehicle. The fixing means is based in particular on a cylinder-side locking means, which engages in a corresponding latching on the piston rod. Preferably, the latching is designed such that a latching of the cylinder with different Ausschubpositionen is possible. This allows the attachment to operate with different angles of inclination on the model vehicle. The clutch can thus be adjusted universally to any attachments.

Bevorzugt wird die Höhenverstellung, insbesondere die Schwenkbewegung des oder der Unterlenker über eine Unterlenker-Kolbenzylindereinheit bewerkstelligt. Werden mehr als ein Unterlenker verbaut, so ist es denkbar, dass jeder Unterlenker über eine eigene Unterlenker-Kolbenzylindereinheit verfügt bzw. alternativ beide Unterlenker über eine gemeinsame Unterlenker-Kolbenzylindereinheit betätigbar sind.Preferably, the height adjustment, in particular the pivoting movement of the or the lower link is accomplished via a lower link-piston-cylinder unit. If more than one lower link is installed, it is conceivable that each lower link has its own lower link piston-cylinder unit or, alternatively, both lower links can be actuated via a common lower-link piston-cylinder unit.

Insbesondere umfasst die Unterlenker-Kolbenzylindereinheit wenigstens ein Fixierungsmittel, um die Ausschublänge der Unterlenker-Kolbenzylindereinheit festzustellen. Das Fixierungsmittel ist vorzugsweise in Form eines Rastmittels zur Feststellung der Ausschublänge ausgestaltet. In diesem Fall ist es bevorzugt, wenn das Rastmittel an der Zylindereinheit vorgesehen ist und mit einer entsprechenden Verrastung am Fahrgestell bzw. einer Fahrgestellabdeckung verrastbar ist.In particular, the lower link piston-cylinder unit comprises at least one fixing means to determine the extension stroke of the lower-link piston-cylinder unit. The fixing means is preferably designed in the form of a locking means for determining the extension. In this case, it is preferred if the latching means is provided on the cylinder unit and can be latched with a corresponding latching on the chassis or a chassis cover.

Eine mögliche Konstruktion zur Anbindung der Unterlenker-Kolbenzylindereinheit an den wenigstens einen Unterlenker besteht darin, dass die Unterlenker-Kolbenzylindereinheit einerseits am Fahrzeugrahmen angelenkt und andererseits an wenigstens einem Hubarm befestigt ist. Der Hubarm ist schwenkbar am Fahrzeugrahmen montiert und unmittelbar bzw. mittelbar mit dem wenigstens einen Unterlenker verbunden, sodass eine Verstellbewegung des Unterlenkers gleichzeitig eine Bewegung des Hubarmes auslöst. Besonders bevorzugt wird der Hubarm durch eine Verstellbewegung des Unterlenkers nach oben verschwenkt, wodurch eine Ausfahrbewegung der Unterlenker-Kolbenzylindereinheit ausgeführt wird.One possible construction for connecting the lower link piston-cylinder unit to the at least one lower link is that the lower-link piston-cylinder unit is articulated on the one hand to the vehicle frame and, on the other hand, fastened to at least one lift arm. The lift arm is pivotally mounted on the vehicle frame and connected directly or indirectly with the at least one lower link, so that an adjusting movement of the lower link simultaneously triggers a movement of the lift arm. Particularly preferably, the lifting arm is pivoted upward by an adjusting movement of the lower link, whereby an extension movement of the lower link piston-cylinder unit is carried out.

Die Verbindung zwischen Hubarm und wenigstens einem Unterlenker kann beispielsweise mittels wenigstens einer Verbindungsstrebe erfolgen.The connection between the lifting arm and at least one lower link can be done for example by means of at least one connecting strut.

Weitere Vorteile und Eigenschaften der Erfindung sollen im Folgenden anhand eines in den Figuren dargestellten Ausführungsbeispiels näher erläutert werden. Es zeigen:

Figur 1:
eine Vorderansicht auf das Fahrgestell inklusive Kupplung des erfindungsgemäßen Modelltraktors,
Figur 2:
eine Seitenansicht des Fahrgestells des Modelltraktors inklusive Kupplung,
Figur 3:
eine Draufsicht auf das Fahrgestell inklusive Kupplung,
Figur 4:
eine perspektivische Seitenansicht des Fahrgestells inklusive Kupplung,
Figur 5:
eine vergrößerte Vorderansicht der Kupplung,
Figur 6:
eine vergrößerte Seitenansicht der Kupplung inklusive eines Teils des Fahrzeuggestells und
Figur 7:
eine vergrößerte Draufsicht auf die Kupplung.
Further advantages and features of the invention will be explained in more detail below with reference to an embodiment shown in the figures. Show it:
FIG. 1:
a front view of the chassis including clutch of the model tractor according to the invention,
FIG. 2:
a side view of the chassis of the model tractor including clutch,
FIG. 3:
a top view of the chassis including clutch,
FIG. 4:
a perspective side view of the chassis including clutch,
FIG. 5:
an enlarged front view of the coupling,
FIG. 6:
an enlarged side view of the clutch including a part of the vehicle frame and
FIG. 7:
an enlarged plan view of the coupling.

Die Figuren 1 bis 7 zeigen das Fahrgestell 2 eines erfindungsgemäßen Modelltraktors inklusive der Kupplung zur Aufnahme eines Anbaugerätes und/oder Anhängers. Die Figuren 1 bis 4 zeigen dabei eine Gesamtdarstellung des Fahrgestells 2, während die Figuren 5 bis 7 vergrößerte Aufnahmen der Kupplung wiedergeben. Die Erfindung soll im Folgenden anhand dieser Darstellungen erläutert werden, wobei die nachfolgend genannten Bezugszeichen für alle Figuren 1 bis 7 gelten.The FIGS. 1 to 7 show the chassis 2 of a model tractor according to the invention including the clutch for receiving an attachment and / or trailer. The FIGS. 1 to 4 show an overall view of the chassis 2, while the FIGS. 5 to 7 reproduce enlarged pictures of the coupling. The invention will be explained below with reference to these representations, wherein the following reference numerals for all FIGS. 1 to 7 be valid.

Der Aufbau der Kupplung basiert auf dem Prinzip eines Dreipunkt-Krafthebers. Das auch häufig als Dreipunkt bezeichnete Bauteil befindet sich entweder an der Rückseite des Modelltraktors oder auch alternativ an dessen Vorderseite. Der Name Dreipunkt ist deswegen passend, da das Anbaugerät an drei Punkten mit dem Traktor verbunden wird.The structure of the clutch is based on the principle of a three-point linkage. The often referred to as three-point component is located either on the back of the model tractor or alternatively at the front. The name Three-point is suitable because the attachment is connected to the tractor at three points.

Die Darstellung zeigt eine am Fahrzeugheck montierte Kupplung, die Konstruktion ist jedoch ohne Einschränkung für eine Kupplung an der Fahrzeugvorderseite einsetzbar. Der Kupplungsaufbau umfasst zwei tief am Heck des Traktors montierte Hebel, die sich in Längsrichtung, d.h. in Fahrzeugrichtung erstrecken. Diese werden als Unterlenker 1 bezeichnet. Die Unterlenker 1 werden mit waagerechten Stiften 12 am Fahrgestell 2 des Traktors schwenkbar um eine Horizontalachse befestigt. An den freien Enden der Unterlenker 1 befinden sich Rasthaken 13 mit nach oben orientierten Öffnungen zur Aufnahme eines Anbaugerätes.The illustration shows a coupling mounted at the rear of the vehicle, but the construction can be used without restriction for a coupling on the vehicle front side. The clutch assembly comprises two levers mounted deep at the rear of the tractor and extending longitudinally, i. extend in the vehicle direction. These are referred to as lower link 1. The lower links 1 are mounted with horizontal pins 12 on the chassis 2 of the tractor pivotable about a horizontal axis. At the free ends of the lower link 1 are latching hooks 13 with upwardly oriented openings for receiving an attachment.

Weiter oberhalb der Unterlenker 1 ist mittig ein weiterer Hebel angebracht, der als Oberlenker 14 bezeichnet wird. Das freie Ende des Oberlenkers 14 sieht den dritten Befestigungspunkt der Dreipunkt-Aufhängung vor, der ebenfalls als Rasthaken 15 ausgestaltet ist und dessen Öffnung nach unten zeigt.Next above the lower link 1, a further lever is mounted centrally, which is referred to as upper link 14. The free end of the upper link 14 provides the third attachment point of the three-point suspension, which is also designed as a latching hook 15 and the opening facing down.

Die beiden Unterlenker 1 sind folglich am Fahrgestell 2 um eine Horizontalachse schwenkbar befestigt. Zwischen dem Fahrgestell 2 und der oberen Abdeckung 3 des Fahrgestells 2 ist der Hubarm 4 drehbar gelagert, sodass dieser ebenfalls um eine Horizontalachse nach oben verschwenkbar ist. Sobald der Unterlenker 1 nach oben verschwenkt wird, wird der Hubarm 4 über die Verbindungsstrebe 5 betätigt und ebenfalls verschwenkt. Wird der Unterlenker 1 nach oben verschwenkt, kommt es ebenfalls zu einer Schwenkbewegung des zugeordnete Hubarmes 4 nach oben.The two lower links 1 are thus attached to the chassis 2 pivotable about a horizontal axis. Between the chassis 2 and the upper cover 3 of the chassis 2 of the lifting arm 4 is rotatably mounted so that it is also pivotable about a horizontal axis upwards. As soon as the lower link 1 is pivoted upwards, the lifting arm 4 is actuated via the connecting strut 5 and likewise pivoted. If the lower link 1 is pivoted upwards, pivoting movement of the associated lifting arm 4 likewise occurs upwards.

An der Lagerung der Unterlenker 1 ist eine Unterlenker-Kolbenzylindereinheit mit dem Kolben 7 angelenkt. Der Zylinder 6 steht mit dem Hubarm 4 in Wirkverbindung. Durch eine Verstellbewegung des Hubarmes 4 wird der am Hubarm 4 befestigte Zylinder 6 relativ zu dem in ihm geführten Kolben 7 in Vertikalrichtung nach oben verschoben.At the storage of the lower link 1, a lower link piston-cylinder unit is articulated to the piston 7. The cylinder 6 is in operative connection with the lifting arm 4. By an adjusting movement of the lifting arm 4 of the lifting arm 4 fixed cylinder 6 is displaced relative to the guided in it piston 7 in the vertical direction upwards.

Eine Schnappverbindung vom Zylinder 6 greift in die Rasthaken der unteren Abdeckung 8 des Fahrgestells 2 ein, sodass die Ausfahrlänge des Kolbens 7 fixiert werden kann. Sobald eine von dem Anbaugerät ausgeübte Kraft von oben auf den Unterlenker 1 wirkt, wird diese auf die Zylinder 6 umgeleitet und durch die formflüssige Schnappverbindung an das Fahrgestell 2 übertragen.A snap connection from the cylinder 6 engages in the latching hooks of the lower cover 8 of the chassis 2, so that the extension length of the piston 7 can be fixed. As soon as a force exerted by the attachment force acts from above on the lower link 1, this is redirected to the cylinder 6 and transmitted by the form-fitting snap connection to the chassis 2.

Der Oberlenker 14 besteht aus einer weiteren Kolbenzylindereinheit, deren Kolben 9 mittels eines Stiftes 10 drehbar um eine Horizontalachse an der unteren Abdeckung 8 des Fahrgestells befestigt ist. Auf dem Kolben 9 wird die Baugruppe Zylinder 11 des Oberlenkers 14 geschoben. Am Zylinderboden befindet sich ein Haken 15 zur Montage des Anbaugerätes. Über eine weitere Schnappverbindung kann die Ausschublänge der Kolbenstange 9 festgelegt werden. Dadurch lässt sich die Ausfahrlänge des Zylinders 11 fixieren, wobei die Rastmittel des Kolbens 9 eine Fixierung in unterschiedlichen Ausfahrpositionen zulassen, sodass sich unterschiedliche Neigungswinkel des aufgenommenen Anbaugerätes einstellen lassen.The upper link 14 consists of a further piston-cylinder unit, the piston 9 is fixed by means of a pin 10 rotatable about a horizontal axis on the lower cover 8 of the chassis. On the piston 9, the assembly cylinder 11 of the upper link 14 is pushed. At the bottom of the cylinder is a hook 15 for mounting the attachment. About a further snap connection, the extension stroke of the piston rod 9 can be set. As a result, the extension length of the cylinder 11 can be fixed, wherein the locking means of the piston 9 allow a fixation in different extended positions, so that can be set different inclination angle of the attached attachment.

Die Kräfte bei angekuppelten Anbaugeräten wirken stets parallel zur Hauptachse des Oberlenkers 14. Diese Kräfte werden ebenfalls über die Schnappverbindung zum Kolben 9 und anschließend über die untere Abdeckung 8 an das Fahrgestell 2 abgeleitet. Durch die mehrfach angebrachten Rasthaken am Kolben 9 des Oberlenkers 14 kann der Zylinder 11 des Oberlenkers 14 mehrere Positionen relativ zu dem Kolben 9 einnehmen.The forces with coupled attachments always act parallel to the main axis of the upper link 14. These forces are also derived via the snap connection to the piston 9 and then via the lower cover 8 to the chassis 2. Due to the multiply mounted latching hooks on the piston 9 of the upper link 14, the cylinder 11 of the upper link 14 can occupy several positions relative to the piston 9.

Die vorgestellte Kupplung des Modelltraktors erlaubt demnach nicht nur eine Höhenverstellbarkeit der aufgenommenen Anbaugeräte über die Unterlenker-Kolbenzylindereinheit 6, 7, sondern ermöglicht zudem über die verstellbare Länge des Oberlenkers 14 eine Variierung des Neigungswinkels eines angebauten Objektes. Die Kupplungskonstruktion ist nicht nur besonders einfach sondern lässt sich zudem mit geringem Kostenaufwand herstellen.The proposed coupling of the model tractor therefore not only allows height adjustment of the mounted attachments on the lower link-piston cylinder unit 6, 7, but also allows on the adjustable length of the upper link 14, a variation of the inclination angle of a mounted object. The coupling construction is not only very simple but can also be produced at low cost.

Claims (10)

  1. A model vehicle, in particular a model tractor, having at least one coupling for mounting at least one attachment item and/or trailer, wherein the coupling comprises at least one lower linkage (1) and at least one upper linkage (14) for fastening the attachment item and/or trailer and the fastening point or points of the upper linkage and/or of the lower linkage is/are vertically adjustable, characterized in that
    the upper linkage and/or lower linkage is longitudinally adjustable.
  2. A model vehicle in accordance with claim 1, characterized in that the upper linkage and/or the lower linkage comprise/comprises a piston-in-cylinder unit, with the fastening of the attachment item and/or trailer preferably taking place at the cylinder side.
  3. A model vehicle in accordance with claim 2, characterized in that at least one fixing means is provided at the piston-in-cylinder unit for fixing the extension length of the piston rod, in particular in the form of a latching means at the cylinder side that engages into a catch connection of the piston rod, with a fixing of the piston rod preferably being possible in different extension positions by means of the catch connection.
  4. A model vehicle in accordance with one of the preceding claims, characterized in that the upper linkage and/or the lower linkage is/are connected in an articulated pivotable manner to the model vehicle, in particular to the vehicle frame.
  5. A model vehicle in accordance with one of the preceding claims, characterized in that the vertical adjustment, in particular the pivot movement of the lower linkage or linkages, comprises a lower linkage piston-in-cylinder unit.
  6. A model vehicle in accordance with claim 5, characterized in that the lower linkage piston-in-cylinder unit comprises fixing means, in particular latching means, for fixing the extension length, with latching means of the cylinder unit preferably latching with a catch connection at the chassis (2) or at the chassis cover.
  7. A model vehicle in accordance with claim 5 or claim 6, characterized in that the lower linkage piston-in-cylinder unit is connected in an articulated manner to the vehicle frame, on the one hand, and to at least one lift arm (4), on the other hand; and in that the lift arm is adjustable, in particular pivotable, by a vertical adjustment, in particular a pivot movement, of the at least one lower linkage and causes a lifting of the lower linkage piston-in-cylinder unit.
  8. A model vehicle in accordance with claim 7, characterized in that the at least one lift arm is connected to at least one lower linkage via at least one connection strut.
  9. A model vehicle in accordance with one of the claims 5 to 8, characterized in that two lower linkages are provided that are arranged offset from one another, with both lower linkages each being vertically adjustable via a piston-in-cylinder unit, in particular by means of a respective lift arm.
  10. A model vehicle in accordance with one of the preceding claims, characterized in that the lower linkage and/or the upper linkage each comprise at least one latching hook (13) for fastening an attachment item and/or trailer, with the latching hook of the upper linkage ideally being arranged at the cylinder of the piston-in-cylinder unit.
EP15197924.2A 2015-01-28 2015-12-04 Model tractor with a coupling for holding at least one attachment and/or trailer Active EP3050607B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015001082.4A DE102015001082A1 (en) 2015-01-28 2015-01-28 Model tractor with a coupling for receiving at least one attachment and / or trailer

Publications (2)

Publication Number Publication Date
EP3050607A1 EP3050607A1 (en) 2016-08-03
EP3050607B1 true EP3050607B1 (en) 2017-07-12

Family

ID=54783442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15197924.2A Active EP3050607B1 (en) 2015-01-28 2015-12-04 Model tractor with a coupling for holding at least one attachment and/or trailer

Country Status (5)

Country Link
EP (1) EP3050607B1 (en)
DE (1) DE102015001082A1 (en)
DK (1) DK3050607T3 (en)
ES (1) ES2643017T3 (en)
HU (1) HUE036769T2 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2147590A5 (en) * 1971-07-23 1973-03-09 Ade Willy
DE19815216A1 (en) * 1997-05-02 1998-11-05 Elfriede Roessler Coupling for model railway vehicles with locking element and coupling head
DE202004000232U1 (en) * 2004-01-09 2005-05-19 Sieper-Werke Gmbh Coupling for a toy model vehicle comprises a coupling lever provided with a protruding coupling pin partially surrounded at a distance by a bumper
DE202004001294U1 (en) * 2004-01-29 2004-04-01 Bruder Spielwaren Gmbh & Co. Kg Toy vehicle with trailer hitch
US7431167B2 (en) * 2004-11-16 2008-10-07 Atlas O, Llc Adjustable coupler assembly for model trains
CN104117212B (en) * 2013-04-27 2017-02-08 上海菲格瑞特汽车科技股份有限公司 Car model framework

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102015001082A1 (en) 2016-07-28
EP3050607A1 (en) 2016-08-03
ES2643017T3 (en) 2017-11-21
DK3050607T3 (en) 2017-09-11
HUE036769T2 (en) 2018-07-30

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