DE1117402B - Independent independent wheel suspension for non-driven rear wheels of motor vehicles - Google Patents

Description

The invention relates to an independent independent wheel suspension for non-driven rear wheels from Motor vehicles, in which not only the vertical impact, but also horizontally on the wheel acting forces are cushioned.

It has long been known in automotive engineering and has also often been perceived as disadvantageous that the vehicle wheel does not give way in the direction of impact when it hits an obstacle. With many wheel suspensions, especially with swing axles guided by trailing arms and one Rigid axles causing the tendency to understeer even compress the wheel in a direction that the The direction of impact is opposite. The result is a strong increase in the horizontal component of the Rolling resistance, especially on uneven ground. This horizontal force is, from the apart from the resilient effect of the pneumatic tire, transferred unsprung to the car body. The horizontal force is also of major influence on tire wear.

It is already known to have an independent independent wheel suspension for non-driven rear wheels to provide a trailing arm supporting the rear wheel with its front end at one end a double-armed control arm, which oscillates in the longitudinal direction of the vehicle and is mounted on the vehicle frame is articulated. Both the trailing arm and the double-armed control arm are suitable Spring means supported by itself against the vehicle frame. As a result, both Handlebars can move independently of each other, so that the trajectory of the wheel pin is not exactly is predictable. There are therefore no precise predictions about the steering behavior of the Vehicle possible.

The invention is based on the object of eliminating this deficiency. To solve this problem is proposed according to the invention that between the trailing arm and the double-armed Handlebar arranged a suspension that supports the handlebars against one another in a vertical oscillation plane will. According to the invention, the double-armed link is mounted on a shaft that has a lever arm on an elastic abutment, e.g. B. a rubber hollow spring acts to the horizontal suspension take over. The double-armed handlebar can also be used in another embodiment of the invention on the sit free end of a torsion bar attached to the vehicle frame. According to a special feature the invention can be the suspension as a coil spring with internal telescopic shock absorber or Independent independent suspension

for non-driven rear wheels

of motor vehicles

Applicant:

Ford-Werke Aktiengesellschaft,
Cologne, Henry-Ford-Strasse

Horst Winter, Darmstadt,

and Dipl.-Ing. Gerd Lech, Hanover,

have been named as inventors

be designed as an air spring element. An embodiment the invention is shown in the drawing.

On the vehicle frame 10, a shaft 11 is mounted in two bearings 12 and 13, on which from the Bearing 13 protruding shaft stub a vertically arranged handlebar 14 is attached. On the A lever arm 15, which acts on a hollow rubber spring 16, sits between the bearings 12 and 13. Below the stub shaft of the shaft 11 is on the handlebar 14 by a pin 17 in Link 18 extending longitudinally to the vehicle, the rear end of which supports the steering knuckle 19 for the vehicle rear wheel 20 carries.

The vertical link 14 is extended upwards and with the extending in the longitudinal direction Link 18 connected by a spring device 21, which for example consists of a spring with internal hydraulic telescopic damper or, as shown, from an air spring unit with spherical air cushion 21 'can exist.

Instead of the hollow rubber spring 16 as a resilient means for the vertically arranged link 14 can occur a torsion bar, which at the same time replaces the shaft 11 and on the free end of the Handlebar 14 is attached in a known manner and which is rotatably mounted in the bearing 13 while he is in the bearing 12 is stuck.

The handlebar 18 can also be mounted the other way around, so that the spring elements behind the rear wheel lie. Lateral forces are through an appropriate design of the handlebars 18 and 14 and the

109 739/221

Bearing 12 and 13 added. You can also completely resilient design of the parts be included.

The effect of the new type of wheel suspension is as follows:

When the wheel 20 is raised, the shock is via the handlebar 18 and the spring device 21 caught softly. The horizontal component of the shock pulls the handlebar 18 backwards, whereby a pivoting force is exerted on the vertically arranged handlebar 14 via the pin 17. The handlebar 14 rotates the shaft 11, the rotation of which is controlled by the hollow rubber spring 16 via the lever arm 15 is intercepted. In this way, the vertical and the horizontal components become one Two-dimensional shock absorption.

Claims (4)

PATENT CLAIMS: 1. Independent single wheel suspension for non-driven rear wheels of motor vehicles with a trailing arm which carries the rear wheel and which has its front end at one end one oscillating in the longitudinal direction of the vehicle, am Vehicle frame mounted double-armed link is articulated, characterized in that between the trailing arm (18) and the double-armed link (14) a suspension (21) supporting the link against each other in a vertical plane of oscillation is arranged. 2. Independent suspension according to claim 1, characterized in that the double-armed Handlebar (14) is mounted on a shaft (11), which via a lever arm (15) on an elastic Abutment, e.g. B. a hollow rubber spring (16) acts. 3. Independent suspension according to claim 1, characterized in that the double-armed Handlebar (14) sits on the free end of a torsion bar attached to the vehicle frame (10). 4. Independent suspension according to claim 1 and claim 2 or 3, characterized in that the suspension (21) as a coil spring with internal Telescopic shock absorber or is designed as an air spring element. Considered publications: German patent specification No. 923 346. 1 sheet of drawings © 109 739/221 11.61