EP1563883B1 - Toy car, especially tractor with at least two steerable wheels - Google Patents

Toy car, especially tractor with at least two steerable wheels Download PDF

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Publication number
EP1563883B1
EP1563883B1 EP04026964A EP04026964A EP1563883B1 EP 1563883 B1 EP1563883 B1 EP 1563883B1 EP 04026964 A EP04026964 A EP 04026964A EP 04026964 A EP04026964 A EP 04026964A EP 1563883 B1 EP1563883 B1 EP 1563883B1
Authority
EP
European Patent Office
Prior art keywords
steering
toy vehicle
front axle
chassis
guide
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 - Fee Related
Application number
EP04026964A
Other languages
German (de)
French (fr)
Other versions
EP1563883A1 (en
Inventor
Paul Heinz Dipl.-Ing. Fh Bruder
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.)
Bruder Spielwaren GmbH and Co KG
Original Assignee
Bruder Spielwaren GmbH and Co KG
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 Bruder Spielwaren GmbH and Co KG filed Critical Bruder Spielwaren GmbH and Co KG
Publication of EP1563883A1 publication Critical patent/EP1563883A1/en
Application granted granted Critical
Publication of EP1563883B1 publication Critical patent/EP1563883B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A63H17/36—Steering-mechanisms for toy vehicles
    • 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
    • A63H17/262—Chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis
    • 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
    • A63H17/36—Steering-mechanisms for toy vehicles
    • A63H17/38—Steering-mechanisms for toy vehicles actuated by hand

Definitions

  • the invention is directed to a toy vehicle, in particular in the form of a tractor, with at least two steerable wheels, wherein the pivotal movement of a steering wheel is converted via a steering gear in a pivoting movement of a steering rack, wherein the wheels are mounted on stub axles, which in turn pivotable on the front axle are stored, wherein the pivoting movement caused by the steering operation via a tie rod and steering lever pivots the kingpin and thus the wheels.
  • a toy vehicle is known from DE 298 01 781 U1.
  • the invention is based on the object to realize starting from this large-scale model even with a toy vehicle such a strong steering angle, but the mechanical implementation should be as simple as possible, reliable and inexpensive to implement.
  • this object is achieved in that the front axle is connected at one end to a first end of the steering rack, at a second end of the steering rack, the steering gear is formed, the steering rack between the first and the second end of a pivot bearing to achieve a pivoting movement relative to Chassis and the tie rod has a center fixed relative to the chassis pivot bearing.
  • the front axle as a whole is mounted oscillating about a horizontal pivot axis, so that, for example, obstacles can be run over without the entire vehicle being tilted.
  • the steering gear preferably includes a gear at the lower end of the steering column connected to the steering column and an arcuate toothed segment on the steering rack.
  • the steering rack may have a recess, on the inside of the toothed segment is formed and engages in the gear of the steering column.
  • the pivot bearing for the steering rack is advantageously formed by a bearing pin on the chassis, which engages in a corresponding bearing recess of the steering rack.
  • the pivot bearing for the tie rod may be formed by a bearing pin on the chassis, which engages in a corresponding recess of the tie rod.
  • a toy vehicle 1 shown in the drawing has a steerable front axle 2 with two wheels 3, which are each covered by a mudguard 4, which is connected to the front axle 2 via retaining struts 5.
  • the front axle 2 is mounted on a steering rack 6, which is pivotally mounted about a pivot bearing A on the chassis 7.
  • a recess 8 is provided, on whose rear inside a toothed segment 9 is formed, which has a circular segment-shaped configuration.
  • the toothed segment could also be arranged on the outside.
  • a remote-controlled version of the drive could also be done via a different type of mechanics using a rowing machine.
  • the recess 8 engages the lower end of a steering column 10, which is designed as a gear 11 which is in engagement with the toothed segment 9.
  • a steering wheel 12 is provided at the upper end of the steering column 10. By operating the steering wheel, that is, by pivoting, the gear 11 interacts with the toothed segment 9, so that the steering rack 6 can be pivoted about the pivot bearing A, whereby the wheels 3 are mitverschwenkt in the sense of a control movement.
  • the wheels 3 are mounted on stub axles 13 via wheel bearings F, which are mounted pivotably about a vertical pivot axis D.
  • the front axle 2 is mounted to oscillate about the vehicle longitudinal axis by means of the bearing B, to ensure the ground contact of all wheels, regardless of the terrain configuration.
  • the suspension is designed such that the deflection of the tie rod 15 in each pendulum angle of the front axle is possible. This is achieved by the structurally favorable arrangement of the pivot bearing B of the front axle with respect to the bearing points of the tie rod in the chassis.

Landscapes

  • Toys (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Description

Die Erfindung richtet sich auf ein Spielzeugfahrzeug, insbesondere in Form eines Traktors, mit wenigstens zwei lenkbaren Rädern, wobei die Schwenkbewegung eines Lenkrads über ein Lenkgetriebe in eine Schwenkbewegung eines Lenkschemels umgewandelt wird, wobei die Räder an Achsschenkeln gelagert sind, die ihrerseits an der Vorderachse schwenkbar gelagert sind, wobei die durch den Lenkvorgang bedingte Schwenkbewegung über eine Spurstange und über Lenkhebel die Achsschenkelbolzen und damit die Räder verschwenkt. Ein derartiges Spielzeugfahrzeug ist aus DE 298 01 781 U1 bekannt.The invention is directed to a toy vehicle, in particular in the form of a tractor, with at least two steerable wheels, wherein the pivotal movement of a steering wheel is converted via a steering gear in a pivoting movement of a steering rack, wherein the wheels are mounted on stub axles, which in turn pivotable on the front axle are stored, wherein the pivoting movement caused by the steering operation via a tie rod and steering lever pivots the kingpin and thus the wheels. Such a toy vehicle is known from DE 298 01 781 U1.

Es gibt in der landwirtschaftlichen Technik Lenkungen für Traktoren, welche unter Verwendung von hydraulischen Getrieben, also mit erheblichem technischen Aufwand, einen sehr starken Lenkeinschlag der Räder ermöglichen, wodurch eine hohe Manövrierfähigkeit erzielt wird.There are in agriculture agricultural steering systems for tractors, which allow using hydraulic transmissions, so with considerable technical effort, a very strong steering angle of the wheels, whereby a high maneuverability is achieved.

Der Erfindung liegt die Aufgabe zugrunde, ausgehend von diesem großtechnischen Vorbild auch bei einem Spielzeugfahrzeug einen derart starken Lenkeinschlag zu realisieren, wobei die mechanische Umsetzung jedoch möglichst einfach, funktionssicher und kostengünstig umsetzbar sein soll.The invention is based on the object to realize starting from this large-scale model even with a toy vehicle such a strong steering angle, but the mechanical implementation should be as simple as possible, reliable and inexpensive to implement.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die Vorderachse mit einem Ende mit einem ersten Ende des Lenkschemels verbunden ist, an einem zweiten Ende des Lenkschemels das Lenkgetriebe ausgebildet ist, der Lenkschemel zwischen dem ersten und dem zweiten Ende ein Schwenklager zur Erzielung einer Schwenkbewegung relativ zum Fahrgestell aufweist und die Spurstange mittig ein relativ zum Fahrgestell ortsfestes Schwenklager besitzt.According to the invention this object is achieved in that the front axle is connected at one end to a first end of the steering rack, at a second end of the steering rack, the steering gear is formed, the steering rack between the first and the second end of a pivot bearing to achieve a pivoting movement relative to Chassis and the tie rod has a center fixed relative to the chassis pivot bearing.

Durch diese Ausgestaltung wird erreicht, dass beim Betätigen des Lenkrades die Vorderachse und damit auch die hieran gelagerten Räder als Ganzes verschwenkt wird, wobei dieser ersten Lenkbewegung ein Verschwenken der einzelnen Räder relativ zur Vorderachse überlagert wird. Dies wird dadurch erreicht, dass beim Verschwenken der Vorderachse aufgrund des mit dem Fahrgestell verbundenen Schwenklagers der Spurstange die Vorderachse parallel zur Spurstange verschoben wird, sodass die mit den Enden der Spurstange schwenkbar verbundenen Lenkhebel die Räder auslenken.By this configuration it is achieved that when actuating the steering wheel, the front axle and thus also the wheels mounted thereon is pivoted as a whole, said first steering movement is a pivoting of the individual wheels is superimposed relative to the front axle. This is achieved in that when pivoting the front axle due to the connected to the chassis pivot bearing of the tie rod, the front axle is moved parallel to the tie rod, so that pivotally connected to the ends of the tie rod steering arms deflect the wheels.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass die Vorderachse als Ganzes um eine horizontale Schwenkachse pendelnd gelagert ist, sodass beispielsweise Hindernisse überfahren werden können, ohne dass das gesamte Fahrzeug schräggestellt wird.In a further embodiment of the invention it is provided that the front axle as a whole is mounted oscillating about a horizontal pivot axis, so that, for example, obstacles can be run over without the entire vehicle being tilted.

Das Lenkgetriebe umfasst vorzugsweise ein Zahnrad am unteren Ende der mit dem Lenkrad verbundenen Lenksäule und eine bogenförmig gekrümmte Zahnsegment am Lenkschemel.The steering gear preferably includes a gear at the lower end of the steering column connected to the steering column and an arcuate toothed segment on the steering rack.

Insoweit kann der Lenkschemel eine Ausnehmung aufweisen, an deren Innenseite die Zahnsegment ausgebildet ist und in die das Zahnrad der Lenksäule eingreift.In that regard, the steering rack may have a recess, on the inside of the toothed segment is formed and engages in the gear of the steering column.

Das Schwenklager für den Lenkschemel ist mit Vorteil durch einen Lagerzapfen am Fahrgestell gebildet, der in eine korrespondierende Lagerausnehmung des Lenkschemels eingreift.The pivot bearing for the steering rack is advantageously formed by a bearing pin on the chassis, which engages in a corresponding bearing recess of the steering rack.

Auch das Schwenklager für die Spurstange kann durch einen Lagerzapfen am Fahrgestell gebildet sein, der in eine korrespondierende Ausnehmung der Spurstange eingreift.Also, the pivot bearing for the tie rod may be formed by a bearing pin on the chassis, which engages in a corresponding recess of the tie rod.

Nachfolgend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung näher beschrieben. Dabei zeigen:

Fig. 1
eine Aufsicht auf die wesentlichen Teile der Lenkung eines erfindungsgemäßen Spielzeugfahrzeugs,
Fig. 2
eine perspektivische Ansicht der in Fahrtrichtung rechten Hälfte des Fahrgestells und der linken Hälfte der Lenkung,
Fig. 3
eine perspektivische Ansicht der Lenkung einschließlich der Kotflügel,
Fig. 4 bis 6
Aufsichten eines erfindungsgemäßen Spielzeugfahrzeugs mit maximalem Lenkungseinschlag nach rechts, in Geradeausfahrt und maximalem Lenkungsausschlag nach links.
The invention will be described in more detail below with reference to a preferred embodiment in conjunction with the drawing. Showing:
Fig. 1
a plan view of the essential parts of the steering of a toy vehicle according to the invention,
Fig. 2
a perspective view of the right in the direction of travel half of the chassis and the left half of the steering,
Fig. 3
a perspective view of the steering including the fenders,
4 to 6
Top views of a toy vehicle according to the invention with maximum steering turn to the right, in straight travel and maximum steering deflection to the left.

Ein in der Zeichnung dargestelltes Spielzeugfahrzeug 1 weist eine lenkbare Vorderachse 2 mit zwei Rädern 3 auf, welche jeweils von einem Kotflügel 4 abgedeckt sind, der mit der Vorderachse 2 über Haltestreben 5 verbunden ist.A toy vehicle 1 shown in the drawing has a steerable front axle 2 with two wheels 3, which are each covered by a mudguard 4, which is connected to the front axle 2 via retaining struts 5.

Die Vorderachse 2 ist an einem Lenkschemel 6 gelagert, der um ein Schwenklager A am Fahrgestell 7 schwenkbar gelagert ist.The front axle 2 is mounted on a steering rack 6, which is pivotally mounted about a pivot bearing A on the chassis 7.

Am rückwärtigen Ende des Lenkschemels 6 ist eine Ausnehmung 8 vorgesehen, an deren rückwärtigen Innenseite eine Zahnsegment 9 ausgebildet ist, welche eine kreisabschnittförmige Konfiguration aufweist. Das Zahnsegment könnte je nach gewünschter Einschlagrichtung auch an der Außenseite angeordnet sein. Bei einer funkferngesteuerten Version könnte der Antrieb auch über eine anders artige Mechanik mittels einer Rudermaschine erfolgen. In die Ausnehmung 8 greift das untere Ende einer Lenksäule 10 ein, welches als Zahnrad 11 ausgebildet ist, das mit der Zahnsegment 9 in Eingriff steht. Am oberen Ende der Lenksäule 10 ist ein Lenkrad 12 vorgesehen. Durch Betätigung des Lenkrads, das heißt durch dessen Verschwenken, tritt das Zahnrad 11 in Wechselwirkung mit der Zahnsegment 9, sodass der Lenkschemel 6 um das Schwenklager A verschwenkt werden kann, wodurch auch die Räder 3 im Sinne einer Steuerbewegung mitverschwenkt werden.At the rear end of the steering rack 6, a recess 8 is provided, on whose rear inside a toothed segment 9 is formed, which has a circular segment-shaped configuration. Depending on the desired direction of impact, the toothed segment could also be arranged on the outside. In a remote-controlled version of the drive could also be done via a different type of mechanics using a rowing machine. In the recess 8 engages the lower end of a steering column 10, which is designed as a gear 11 which is in engagement with the toothed segment 9. At the upper end of the steering column 10, a steering wheel 12 is provided. By operating the steering wheel, that is, by pivoting, the gear 11 interacts with the toothed segment 9, so that the steering rack 6 can be pivoted about the pivot bearing A, whereby the wheels 3 are mitverschwenkt in the sense of a control movement.

Die Räder 3 sind an Achsschenkeln 13 über Radlager F gelagert, die um eine vertikale Schwenkachse D schwenkbar gelagert sind.The wheels 3 are mounted on stub axles 13 via wheel bearings F, which are mounted pivotably about a vertical pivot axis D.

An den Achsschenkeln 13 greifen Lenkhebel 14 an, welche über ein Schwenklager C mit einer Spurstange 15 gekoppelt sind, welche parallel zur Vorderachse 2 verläuft und um ein ortsfestes Schwenklager E, welches am Fahrgestell 7 ausgebildet ist, verschwenkbar ist.At the stub axles 13 engage steering lever 14, which are coupled via a pivot bearing C with a tie rod 15 which is parallel to the front axle 2 and a stationary pivot bearing E, which is formed on the chassis 7, is pivotable.

Diese Ausgestaltung führt dazu, dass bei einem Verschwenken der Vorderachse 2 bei Betätigung des Lenkrads 12 die Vorderachse relativ zu der ortsfest-schwenkbar gelagerten Spurstange 15 eine Parallelverschiebung erfährt, sodass über die Gelenke C die Lenkhebel 14 die Schwenkbewegung der Vorderachse überlagernd in Richtung von deren Schwenkbewegung ausgelenkt werden, sodass der Einschlag der Räder 3 nochmals gegenüber der Schwenkbewegung der Vorderachse 2 verstärkt wird und auf diese Weise insgesamt ein Lenkeinschlag von bis zu 45° in Fahrtrichtung gesehen nach links und rechts, wie in Figur 4 und 6 dargestellt, erzielt werden kann.This configuration causes pivoting of the front axle 2 upon actuation of the steering wheel 12, the front axle relative to the stationary pivotally mounted tie rod 15 experiences a parallel displacement, so over the joints C, the steering lever 14, the pivotal movement of the front axle superimposed in the direction of its pivotal movement be deflected so that the impact of the wheels 3 again opposite the pivoting movement of the front axle 2 is amplified and in this way a total of a steering angle of up to 45 ° seen in the direction of travel to the left and right, as shown in Figure 4 and 6, can be achieved.

Aus Figur 3 ist erkennbar, dass die Vorderachse 2 um die Fahrzeuglängsachse mittels des Lagers B pendelnd gelagert ist, um unabhängig von der Geländegestaltung den Bodenkontakt aller Räder zu gewährleisten. Die Aufhängung ist derart gestaltet, dass die Auslenkung der Spurstange 15 in jedem Pendelwinkel der Vorderachse möglich ist. Dies wird durch die konstruktiv günstige Anordnung des Schwenklagers B der Vorderachse im Bezug auf die Lagerpunkte der Spurstange im Fahrgestell erreicht.From Figure 3 it can be seen that the front axle 2 is mounted to oscillate about the vehicle longitudinal axis by means of the bearing B, to ensure the ground contact of all wheels, regardless of the terrain configuration. The suspension is designed such that the deflection of the tie rod 15 in each pendulum angle of the front axle is possible. This is achieved by the structurally favorable arrangement of the pivot bearing B of the front axle with respect to the bearing points of the tie rod in the chassis.

Claims (6)

  1. Toy vehicle, in particular a tractor, comprising at least two steerable wheels (3), with a pivoting motion of a steering wheel (12) being converted via a steering gear into a pivoting motion of a steering guide (6), with the wheels being mounted on steering knuckles (13) that are pivotally mounted on a front axle (2), with the pivoting motion that is occasioned by the steering action pivoting the steering pivot pins and thus the wheels via a track rod (15) and via steering arms (14), characterised in that the front axle (2) is connected to a first end of the steering guide (6), the steering gear is formed on a second end of the steering guide (6), said steering guide comprises a pivot bearing (A) between the first and second ends to achieve a pivoting motion relative to the chassis (1), and the track rod (15) centrally comprises a pivot bearing (E) that is stationary relative to the chassis (1).
  2. Toy vehicle according to claim 1, characterised in that the front axle (2) in its entirety is mounted pendulously about a horizontal pivot axis B.
  3. Toy vehicle according to claim 1, characterised in that the steering gear comprises a gear wheel (11) on the lower end of the steering column 10 that is connected to the steering wheel (12), and an arcuate toothed segment (9) on the steering guide (15).
  4. Toy vehicle according to claim 3, characterised in that the steering guide (6) comprises a recess (8), on the inside of which the toothed segment (9) is formed, and with which the gear wheel (11) of the steering column (10) engages.
  5. Toy vehicle according to claim 1, characterised in that the pivot bearing (A) for the steering guide (6) is formed by a journal on the chassis (7) which engages with a corresponding bearing recess in the steering guide (6).
  6. Toy vehicle according to claim 1, characterised in that the pivot bearing (E) for the track rod (15) is formed by a journal on the chassis (1) which engages with a corresponding recess in the track rod (15).
EP04026964A 2004-02-10 2004-11-12 Toy car, especially tractor with at least two steerable wheels Expired - Fee Related EP1563883B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004001973U DE202004001973U1 (en) 2004-02-10 2004-02-10 Toy vehicle, in particular tractor, with at least two steerable wheels
DE202004001973U 2004-02-10

Publications (2)

Publication Number Publication Date
EP1563883A1 EP1563883A1 (en) 2005-08-17
EP1563883B1 true EP1563883B1 (en) 2007-01-10

Family

ID=32115902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04026964A Expired - Fee Related EP1563883B1 (en) 2004-02-10 2004-11-12 Toy car, especially tractor with at least two steerable wheels

Country Status (3)

Country Link
US (1) US7008291B2 (en)
EP (1) EP1563883B1 (en)
DE (2) DE202004001973U1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008003709U1 (en) * 2008-03-15 2008-07-03 Bruder Spielwaren Gmbh + Co. Kg Toy vehicle
US20110036190A1 (en) * 2009-08-17 2011-02-17 Aeon Motor Co., Ltd. Driving mechanism of a steering wheel
EP2394721A1 (en) * 2010-06-09 2011-12-14 Tomy Company, Ltd. Toy device
DE102011002595B4 (en) * 2011-01-12 2012-08-02 Bruder Spielwaren Gmbh & Co. Kg Toy vehicle
US9039484B1 (en) * 2014-04-22 2015-05-26 Samuel O. Mayson Toy truck
US10946922B2 (en) 2017-02-16 2021-03-16 Mattel, Inc. Ride-on toy vehicle configured to tilt and drift

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441735A (en) * 1982-02-18 1984-04-10 Deere & Company Steering gear assembly for a lawn and garden tractor
US4595380A (en) * 1984-01-31 1986-06-17 Magers R G Steerable wheeled toy
DE8519231U1 (en) * 1985-07-03 1985-12-19 Sistig, Kurt, 5203 Much Steering device
GB2187108A (en) * 1986-02-27 1987-09-03 New Bright Ind Co Ltd Toy vehicle steering mechanism
US5449311A (en) * 1992-03-27 1995-09-12 Williams; Larry C. Steering system for toy vehicle
FR2761614B1 (en) * 1997-04-08 1999-06-04 Philippe Roux DRIVING DEVICE FOR MINIATURE VEHICLE
DE29801781U1 (en) * 1998-02-03 1998-04-16 Bruder Spielwaren Gmbh & Co Kg Toy vehicle with steerable front wheels

Also Published As

Publication number Publication date
US7008291B2 (en) 2006-03-07
DE502004002617D1 (en) 2007-02-22
EP1563883A1 (en) 2005-08-17
US20050176344A1 (en) 2005-08-11
DE202004001973U1 (en) 2004-04-15

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