DE102006041650A1 - Steering for rear wheel of vehicle, has straight running and turning stability, consisting of two guides, which have hinges at their both ends, with which longitudinal guides connect rear wheel to vehicle frame in guidable manner - Google Patents

Steering for rear wheel of vehicle, has straight running and turning stability, consisting of two guides, which have hinges at their both ends, with which longitudinal guides connect rear wheel to vehicle frame in guidable manner Download PDF

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Publication number
DE102006041650A1
DE102006041650A1 DE200610041650 DE102006041650A DE102006041650A1 DE 102006041650 A1 DE102006041650 A1 DE 102006041650A1 DE 200610041650 DE200610041650 DE 200610041650 DE 102006041650 A DE102006041650 A DE 102006041650A DE 102006041650 A1 DE102006041650 A1 DE 102006041650A1
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Germany
Prior art keywords
rear wheel
vehicle
steering
guides
hinges
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Ceased
Application number
DE200610041650
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German (de)
Inventor
Marcus Von Der Wehl
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Individual
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Individual
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Priority to DE200610041650 priority Critical patent/DE102006041650A1/en
Publication of DE102006041650A1 publication Critical patent/DE102006041650A1/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/05—Tricycles characterised by a single rear wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

The steering has straight running and turning stability, consisting of two guides (1,2), which have hinges at their both ends, with which the longitudinal guides connect the rear wheels (5,6) to the vehicle frame (10) in a guidable manner. The hinges attached to the rear wheels move inward and outward opposite the joints at the vehicle assembly, so that the velocity pole (9) of the guide movement of the rear wheel lies behind the wheel insurrection point.

Description

Die Erfindung betrifft eine Fahrzeughinterradlenkung.The The invention relates to a vehicle rear wheel steering system.

Allgemein werden zur Führung gelenkter Hinterräder Kinematiken mit einer Drehachse pro gelenktem Rad eingesetzt.Generally become the lead steered rear wheels Kinematics used with one axis of rotation per steered wheel.

Der Schnittpunkt der Drehachse mit der Fahrbahn liegt in Fahrtrichtung vor, hinter oder aufOf the Intersection of the axis of rotation with the road is in the direction of travel before, behind or on

Höhe des Radaufstandspunktes.height of the wheel contact point.

Liegt der Schnittpunkt Drehachse/Fahrbahn vor dem Radaufstandspunkt, dann führen die Seitenkräfte bei Kurvenfahrt zu einem lenkeinschlagsverstärkenden Moment, d.h. wenn der Fahrer die Lenkung loslässt, wird die vom Fahrzeug beschriebene Kurve selbsttätig enger und das Fahrzeug kann umkippen.Lies the intersection of the axis of rotation / roadway in front of the wheel contact point, then to lead the lateral forces when cornering at a steering angle enhancing moment, i. if the Driver lets go of the steering, The curve described by the vehicle automatically becomes narrower and the vehicle can tip over.

Liegt der Schnittpunkt Drehachse/Fahrbahn hinter dem Radaufstandspunkt, dann leiten bereits kleine außermittig am Hinterrad angreifende Kräfte eine Kurvenfahrt ein, die sich solange verstärkt, bis die durch die Kurvenfahrt aufgebauten Seitenkräfte die Lenkung über die Geradeauslaufstellung in eine entgegengesetzte Kurvenfahrt leiten. Das Resultat ist eine Schwingung der Lenkung um die Geradeauslaufstellung, eine wellenförmige Geradeausfahrt. Liegt der Schnittpunkt Drehachse/Fahrbahn im Radaufstandspunkt, ist die Lenkung indifferent, d.h. es treten keine der instabilen Fahrzustände wie oben beschrieben auf, aber es gibt auch kein selbsttätiges Rückstellen der Lenkung in die Geradeauslaufstellung, d.h. die Lenkung gibt keine Rückmeldung über Seitenkräfte, sie ist „gefühllos".Lies the intersection of the axis of rotation / roadway behind the wheel contact point, then already lead small off-center forces acting on the rear wheel Cornering, which is amplified until the cornering built-up lateral forces the Steering over direct the straight-ahead position into an opposite cornering. The result is a vibration of the steering around the straight-ahead position, a wavy one Straight ahead. Is the intersection of the axis of rotation / roadway in the wheel contact point, the steering is indifferent, i. there are no unstable ones driving conditions as described above, but there is also no automatic reset the steering in the straight-ahead position, i. the steering gives no feedback on side forces, they is "unfeeling".

Wegen dieser prinzipiellen Schwierigkeiten beim Auslegen von Hinterradlenkungen, sind Hinterradlenkungen in der Praxis nur in langsamfahrenden Fahrzeugen (Mähdrescher, Gabelstapler) im Einsatz, bei denen der Einsatz einer starren Vorderachse Vorteile bringt (kein Platzbedarf für das Schwenken der Räder, hohe Belastbarkeit), die den Einsatz der prinzipiell problembehafteten Hinterradlenkung mehr als aufwiegen.Because of these principal difficulties in designing rear wheel steering, Rear wheel steering in practice are only in slow-moving vehicles (Harvester, Forklift) in use, where the use of a rigid front axle Benefits (no space required for swinging the wheels, high Resilience), the use of the principle problematic Rear wheel steering more than outweigh.

Aufgabe der Erfindung ist es, die Hinterradführung so zu gestalten, dass sowohl Längs- als auch Seitenkräfte das Hinterrad zu stabilem Geradeauslauf zurückführen.task The invention is to make the rear wheel guide so that both longitudinal as well as lateral forces return the rear wheel to a stable directional stability.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Hinterrad über zwei Lenker geführt wird, die in der Draufsicht ein Gelenkviereck bilden.The The object is achieved in that the rear wheel over two handlebars are guided, which form a four-bar linkage in plan view.

Der sich hierdurch für das Hinterrad ergebenden Momentanpol (9) liegt in vorteilhafter Weise hinter dem Radaufstandspunkt (8).The resulting here for the rear wheel instantaneous pole ( 9 ) lies advantageously behind the wheel contact point ( 8th ).

Längskräfte am in Geradeauslaufposition stehenden Hinterrad bauen kein Drehmoment auf, Längskräfte am ausgelenkten Hinterrad führen zu rückstellenden Momenten, weil der Momentanpol (9) auf die kurvenäußere Seite der Wirkungslinie der Längskraft wandert. Damit verfügt das Fahrzeug über einen stabilen Geradeauslauf.Longitudinal forces on the rear wheel in the straight-ahead position build up no torque, longitudinal forces on the deflected rear wheel lead to restoring moments, because the instantaneous pole ( 9 ) migrates to the outside of the curve of the line of action of the longitudinal force. This gives the vehicle a stable directional stability.

Bei Kurvenfahrt tritt am Radaufstandspunkt (8) eine in Richtung des Kurvenmittelpunktes weisende Querkraft auf, die in Verbindung mit dem Hebel Radaufstandspunkt ((8)/Momentanpol (9) der Hinterradführung ein rückstellendes Moment aufbaut. Wenn der Fahrer in diesem Fahrzustand aufhört zu lenken, kehrt das Fahrzeug selbsttätig in den Geradeauslauf zurück.When cornering occurs at the wheel contact point ( 8th ) has a transverse force pointing in the direction of the center of the curve, which, in conjunction with the lever wheel contact point (( 8th ) / Momentary pole ( 9 ) the rear wheel guide builds up a restoring moment. If the driver stops steering in this driving condition, the vehicle automatically returns to the straight-line running position.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung näher erläutert, das in den Zeichnungen dargestellt ist.following is an embodiment of Invention closer explains which is shown in the drawings.

1. Hinterradlenkung für ein Fahrzeug mit einem Hinterrad schematisch in Draufsicht mit Benennungen 1 , Rear wheel steering for a vehicle with a rear wheel schematically in plan view with terms

2. Hinterradlenkung für ein Fahrzeug mit einem Hinterrad-Darstellung der Längskraftverhältnisse 2 , Rear wheel steering for a vehicle with a rear wheel representation of the longitudinal force conditions

3. Hinterradlenkung für ein Fahrzeug mit einem Hinterrad-Darstellung der Querkaftverhältnisse 3 , Rear-wheel steering for a vehicle with a rear-wheel representation of the transverse grip conditions

4. Hinterradlenkung für ein Fahrzeug mit einem Hinterrad in isometrischer Ansicht 4 , Rear wheel steering for a vehicle with a rear wheel in isometric view

5. Hinterradlenkung für ein Fahrzeug mit einem Hinterrad in Draufsicht 5 , Rear wheel steering for a vehicle with a rear wheel in plan view

6. Hinterradlenkung für ein Fahrzeug mit einem Hinterrad in Seitenansicht 6 , Rear wheel steering for a vehicle with a rear wheel in side view

Claims (1)

Lenkung für das Hinterrad eines Fahrzeuges mit stabilem Geradeauslauf und stabiler Kurvenfahrt, bestehend aus zwei Lenkern, die an ihren beiden Enden jeweils Gelenke aufweisen, mit denen die Längslenker das Hinterrad am Fahrzeugrahmen lenkbar verbinden, dadurch gekennzeichnet, dass die dem Hinterrad zugeordneten Gelenke gegenüber den Gelenken am Fahrzeugaufbau nach hinten und innen versetzt sind, so dass der Momentanpol der Lenkbewegung des Hinterrades hinter dem Radaufstandspunkt liegt.Steering for the rear wheel of a vehicle with stable straight-ahead and stable cornering, consisting of two links, which at their two ends each have joints with which the trailing arm the rear wheel on the vehicle frame steerably connect, characterized in that the rear wheel associated joints with respect to the joints are rearwardly and internally offset on the vehicle body, so that the instantaneous center of the steering movement of the rear wheel is behind the Radaufstandspunkt.
DE200610041650 2006-08-24 2006-08-24 Steering for rear wheel of vehicle, has straight running and turning stability, consisting of two guides, which have hinges at their both ends, with which longitudinal guides connect rear wheel to vehicle frame in guidable manner Ceased DE102006041650A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200610041650 DE102006041650A1 (en) 2006-08-24 2006-08-24 Steering for rear wheel of vehicle, has straight running and turning stability, consisting of two guides, which have hinges at their both ends, with which longitudinal guides connect rear wheel to vehicle frame in guidable manner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610041650 DE102006041650A1 (en) 2006-08-24 2006-08-24 Steering for rear wheel of vehicle, has straight running and turning stability, consisting of two guides, which have hinges at their both ends, with which longitudinal guides connect rear wheel to vehicle frame in guidable manner

Publications (1)

Publication Number Publication Date
DE102006041650A1 true DE102006041650A1 (en) 2008-03-20

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DE200610041650 Ceased DE102006041650A1 (en) 2006-08-24 2006-08-24 Steering for rear wheel of vehicle, has straight running and turning stability, consisting of two guides, which have hinges at their both ends, with which longitudinal guides connect rear wheel to vehicle frame in guidable manner

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014094886A1 (en) * 2012-12-21 2014-06-26 Recticel N.V. Human powered land vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT240230B (en) * 1961-02-28 1965-05-25 Walter Kleinmann Two-wheeled roller skate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT240230B (en) * 1961-02-28 1965-05-25 Walter Kleinmann Two-wheeled roller skate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014094886A1 (en) * 2012-12-21 2014-06-26 Recticel N.V. Human powered land vehicle

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