DE102012017470A1 - Lever steering with side suspension hinged to the door and non-linear translation - Google Patents

Abstract

The classic steering of the car with steering wheel and steering gear is removed and replaced with new solution. There are two steering levers which are placed to the left and right of the driver's seat. Levers are moved forwards and backwards. The levers are coupled in opposite directions runs one forward, the other runs backwards. If the left lever is moved backwards, the car moves to the left. The inventive core of the idea are two details: First, the steering lever on the driver's door side is attached directly to the door and pivots with the opening of the door. Thus, the steering lever is the driver when getting out of the way. Secondly: The translation of the steering is not linear. In the middle range (straight ahead ride) causes a deflection of the steering lever little wheel movement which allows the precise steering. In the large steering stroke to the left or right small steering lever movement causes a large steering deflection of the wheels. The lever is connected by means of rods and reversing levers with the wheel steering of the front wheels. The steering is servo-assisted, since the translation of this type of steering is very low.

Description

The technical area

Vehicle construction, car construction. Parts of the vehicle technology. Steering a car. Steering a car.

The current state of the art

In the car industry, the steering wheel has become fully established as a steering instrument. Every car has a steering wheel Absolutely exceptional are the small tricycle cars like Piaggio ^® that have a handlebar like a motorcycle.

Second exception are vehicles with non-steerable wheels or chains such as construction machinery, excavators or tanks which are controlled by two levers placed on the side of the driver's seat.

Background and illustration of the invention

The idea is in a normal car (ie a vehicle with steerable front wheels) to replace the conventional steering wheel with a "tank-like" control. However, there are two aspects that make this idea impractical. This invention offers just the solution to both problems. The problems are:
On the one hand: a steering wheel has an average of 3 turns from left to right full swing - the steering handle can only provide a total stop of about 90 °. Second, in a normal car, the steering lever on the door side would cause significant ergonomic problems when the driver disembarked. The idea described here combines solutions of both problems.

The description of the construction is as follows:
In addition to the driver's seat 1 ) left and right, two levers ( 2 ) ( 1 . 2 .). Both levers are mechanically connected. If you want to steer to the right, pull the right lever towards you (to the rear) and the left lever (towards the front). You can possibly only one lever (instead of both at the same time) - the right or only the left lever - operate as these levers are mechanically connected and synchronously in opposite directions.

• 1. Die Türseite ist so konstruiert, dass das Lenkhebel an diese Seite an der Tür (3) befestigt ist (3) und mit dem Öffnen der Türe rausschwenkt. Dieses Merkmal ermöglicht erst überhaupt den Einsatz dieser ”Panzerlenkung” in einem Pkw – ansonsten wäre, wie schon erwännt, das Aussteigen durch eine neben und über der Sitzfläche ragenden Steuerungstange erheblich erschwert und das ganze Projekt wäre nicht praktikabel.
• 2. Die Übersetzung des Lenkimpulses auf die Räder ist nicht linear. Beim geradeaus Fahren bewirken größere Lankbewegungen nur wenig Lenkausschlag der Räder. Dieses wird mit einer speziellen Getriebe erreicht, z. B. Wie auf 4.

The controller can be - as is standard practice today - servo-assisted. Thus, the steering requires no large force but only the steering momentum. Important detail solutions:

• 1. The door side is designed so that the steering handle is attached to this side of the door ( 3 ) is attached ( 3 ) and swung out with the door open. This feature allows only the use of this "Panzerlenkung" in a car - otherwise would, as already mentioned, the disembarkation by a next to and above the seat projecting control rod considerably more difficult and the whole project would not be practicable.
• 2. The translation of the steering momentum to the wheels is not linear. When driving straight ahead, larger Lankbewegungen cause little steering deflection of the wheels. This is achieved with a special gear, z. B. How to 4 ,

• 1. Präzise Steuerung auch bei schnellen Manöver – das hektische Kurbeln fällt weg.
• 2. Fester Griff. Die Lenkstangen (ergonomisch optimiert) hält man fest in den Händen. Ein Lenkrad muss man immer etsprechend drücken – ansonsten können die Hände auch mal rutschen. Extrembeispiel: mit Wolle-Handschuhen kann man ein Auto gereicht lenken.
• 3. Bequem und orthopedisch günstiger. Man muss nicht die Hände ständig vor sich in der Höhe halten. Die Oberarme hängen bequem am Körper entlang nach unten. Die Unterarme nach vorne, nur ca. 10–15 cm über der Sitzfläche. Auch Langstreckenfahren führt nicht zu Ermüdung der Arme.
• 4. Die Lenkstangen stören nicht wie das Lenkrad den Blick aufs Armaturenbrett. Es kann z. B ein großes Multifufunktionsdisplay direkt vor dem Fahrer plaziert werden.

What advantages should the new steering system have over the steering wheel?

• 1. Precise control even during quick maneuvers - the hectic cranks are eliminated.
• 2. Firm grip. The handlebars (ergonomically optimized) hold you firmly in the hands. You always have to press a steering wheel appropriately - otherwise the hands can slip. Extreme example: with wool gloves you can steer a car.
• 3. Convenient and orthopedic cheaper. You do not have to keep your hands constantly in front of you. The upper arms hang down comfortably along the body. The forearms forward, only about 10-15 cm above the seat. Also long-distance driving does not lead to fatigue of the arms.
• 4. The handlebars do not disturb the view of the dashboard like the steering wheel. It can, for. B a large multifunction display placed directly in front of the driver.

embodiment

An inventive car has no steering wheel, no steering column and no steering gear.

In the car are two steering levers ( 2 ) built-in. The levers are located on the left and right next to the seat surface of the driver's seat ( 1 ). The handles of the steering levers can be shaped according to ergonomic requirements. In particular, a handle at the end of the handlebar resembles the shape of a round bar which can be gripped completely around the palm (similar to the handlebar).

The steering levers have a rotation axis ( 4 ) at the height of the floor of the vehicle and protrude about 10-15 cm above the seat of driving. They move from behind and behind and in opposite directions.

The steering levers are connected to each other by the rotary rod which connects the left and right sides under the driver's seat.

The right lever is the main control the actual wheel steering machanik and handlebars actuated.

Left lever is not mounted on the vehicle floor but on the driver's door ( 3 ) (Cars for Rinksverkehr - right lever). When the driver's door is opened, the left lever is thus engaged with the door. The mechanism of the lever is designed accordingly that it can realize this swinging.

The steering mechanism consists only of push rods and reversing levers - a classic steering gear auswählen.

The steering mechanism is hydraulically or electrically assisted.

The driver sits comfortably with his arms along the body.

The door panel is shaped accordingly for the lever control. The typical bulge interior (handle, elbow support) fails. The door panel is rather curved inwards to create more space for the hand movement.

The space between the two front seats is specially shaped. The driver needs more space for the control movement. The passenger seat is prevented from (accidental) contact with the driver's control handle / arm by a type of fixed elbow support.

Claims (4)

The steering of a car consisting of two levers ( 2 ) which laterally on the driver's seat ( 1 ) and control the direction of travel of the vehicle by mutually opposite movement forward and backward along the seat, characterized in that the steering lever, which is attached to the side of the driver's door, directly on the door ( 3 ) is mounted so that it resonates when opening with the door and thus does not interfere with the entry and exit of the driver; and the steering gear 4 is designed so that the translation of the steering movement is not linear but so that in straight direction much steering lever movement means little steering swing and at the limit excursions to the left or right the other way little steering lever movement causes a lot of rash, which by using the oval gears ( 5 ) or other suitable device. The steering according to claim 1, characterized in that the steering levers are each attached to an axle which extends under the seat of driving transversely to the vehicle and the levers rotate on this axis forward and backward. The steering system according to claim 1, characterized in that the steering levers have ergonomically favorable handles at the ends which are placed horizontally or almost horizontally - similar to the handles controlling the thrust in the aircraft. The steering system according to claim 1, characterized in that the deflection of the control lever is mounted on the driver's door and transmits the movement of the steering lever to the axle under the driver's seat is located on the side in the footwell of driving or located at the front of the driver's door.

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