Motor-vehicle rear suspension

Details Motor-vehicle rear suspension Motor-vehicle rear suspension

1998-06-01

2000-11-28

Dickson, Paul N.

Land vehicles

Wheeled

Running gear

280124149, 280124166, B60G 312

Patent

active

061524670

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The present invention relates to motor-vehicle rear suspensions of the type which comprises, for each wheel: of the motor-vehicle around an axis directed transversally to the longitudinal direction of the motor-vehicle and the opposite end carrying a respective wheel hub, connected to the fixed structure of the motor-vehicle, auxiliary arm and the fixed structure of the motor-vehicle, fixed structure of the motor-vehicle and directed transversally to the longitudinal direction of the motor-vehicle, and fixed structure of the motor-vehicle.
A suspension of the above indicated type is for instance described and illustrated in German patent application DE-A-34 26 942.


SUMMARY OF THE INVENTION

The object of the present invention is that of providing a motor-vehicle rear suspension of the above indicated type which has reduced dimensions and weight while insuring a good behaviour of the motor-vehicle in any travel condition.
In order to achieve this object, the invention provides a rear suspension of the above indicated type, characterized in that the portion of the longitudinal arm which is pivotally mounted around said transverse axis on the fixed structure of the motor-vehicle is constituted by a torsionally deformable blade, arranged substantially in a vertical longitudinal plane, in that said resilient means are constituted by a torsion bar directed along said transverse articulation axis of the longitudinal arm, said torsion bar having one end anchored to the fixed structure of the motor-vehicle and the opposite end rigidly connected to said blade, and in that the torsion bar is of tubular shape and has inside thereof an anti-rolling bar rigidly connected at its ends to the blades associated with the two longitudinal arms of the suspension.
In a preferred embodiment, the blade and said articulated rod element are connected to a frame on which they are pre-assembled, this frame being fixed to, the fixed structure of the motor-vehicle and including a hollow cylindrical body directed along said transverse axis, inside which the end of said torsion bar which is anchored to said blade is rotatably mounted. It is to be noted that rear suspensions having longitudinal arms in forms of blades are known also from DE-A-2 123 666, DE-B-1 162 702, FR-A-2 400 441. However, the above defined structure and arrangement of the suspension of the present invention is not anticipated nor suggested by the prior art.


BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be now described with reference to the annexed drawings, given purely by way of non limiting example, in which:
FIG. 1 is a perspective view of the portion of the motor-vehicle rear suspension according to the invention which is associated with the left rear wheel of the motor-vehicle,
FIG. 2 is a plan view of the device of FIG. 1,
FIG. 3 is an elevational side view of the device of the FIG. 1, and
FIG. 4 is a diagrammatic representation of the kinematic arrangement provided with the suspension according to the invention.


DETAILED DESCRIPTION OF THE INVENTION

In the drawings, there is illustrated a preferred embodiment of the suspension according to the invention in which the various portions of the suspension are mounted on two auxiliary frames 1, 2 which on their turn are fixed to the motor-vehicle structure. It is thus possible, according to a technique known per se, to pre-assemble the various parts of the suspension on the auxiliary frames 1, 2 and then to assemble in a single operation the whole assembly constituted by the auxiliary frames 1, 2 and the suspension on the motor-vehicle structure. Naturally, however, the invention is applicable also by providing auxiliary frames having a shape different from that shown in the drawings, or a single auxiliary frame which supports all the various components of the suspension, or even by having the various parts of the suspension being mounted onto the motor-vehicle structure.
In the case of the illustrated example, the auxiliary frame 1 comprises a hollow cylindrical body 3 a

REFERENCES:
patent: 2702701 (1955-03-01), Thorne et al.
patent: 3473821 (1969-10-01), Barenyi et al.
patent: 4132431 (1979-01-01), Von Der Ohe
patent: 4213632 (1980-07-01), Stotz et al.
patent: 4234205 (1980-11-01), Thiesce
patent: 4261591 (1981-04-01), Warne, Jr.
patent: 4491341 (1985-01-01), Maebayashi
patent: 4715615 (1987-12-01), Kijima et al.
patent: 5013166 (1991-05-01), Domer
patent: 5263736 (1993-11-01), Stevens
patent: 5277450 (1994-01-01), Henschen
patent: 5378010 (1995-01-01), Marino et al.
patent: 5409254 (1995-04-01), Minor et al.

Affiliated with

Also associated with

Rating

Motor-vehicle rear suspension does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motor-vehicle rear suspension, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor-vehicle rear suspension will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1717056