DE8011753U1 - Twist-beam axle for vehicles, caravans or the like - Google Patents

Description

·· · - ·· ,. ". Dr. Max Schneider τ

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Admitted to the European Patent Office - admit ted to the European Patent Office - agrees pres! 'Office europeen des brevet

85 Nuremberg 106, April 29th

Königstrasse 1 (Museum Bridge) Telephone collection no. 203931

Q Parking garage Katharlnenhof Car park AdleretraBe

-this.no. 30 247/29-or

Helmut Knaus Wohnwagenwerk, Marktbreiter Str. 11, 8703 Ochsenfurt

"Twist-beam axle for vehicles, caravans or the like. ¹¹

The invention relates to a torsion beam axle for caravans or the like. with the wheels bearing, connected to one another by a cross strut rotatably mounted on the chassis, according to trailing arms suspended at the top of the chassis.

In the case of twist beam axles of this type, the cross strut connecting the trailing arms to one another should be rigid but torsionally soft be. This can be achieved, for example, by (compare, for example, the German interpretation

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writing 2 430 048) the cross strut is designed as a cross-sectionally V-shaped profile rod. Basically there is for everyone Such twist beam axles have the difficulty that either the bending stiffness is insufficient or the required Torsional softness is not achieved or that the frequent bending cycles can lead to material fatigue and cracks.

To avoid these difficulties, according to the present invention, a twist beam axle for caravans or the like. intended, that the cross strut is divided and the two parts are rigid, but connected to one another so that they can rotate about the longitudinal axis are.

Due to this division and rotatable connection of the parts of the cross strut, it is practically the most flexible case imaginable Wishbone axle achieved by namely torsional movements beyond the friction - no resistance at all in the opposite direction will. On the other hand, since the cross strut is no longer designed to be easily twistable in itself must be extremely easy to achieve the desired flexural rigidity.

For this purpose it can be provided, for example, that the cross strut is tubular and its two parts are preferably with the interposition of plastic bearing bushes on one

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Round bolts are stored, the to prevent excessive insertion into one of the parts, for example, between the cross brace parts can have protruding collar. By choosing an appropriately long one, i.e. sufficiently far into the respective tubular cross member parts protruding round bolts can achieve an extremely rigid connection.

Further advantages, features and details of the invention emerge from the following description of an exemplary embodiment and on the basis of the drawing. Show:

Fig. 1 is a bottom view of the twist beam axle according to the invention and

Fig. 2 is an enlarged section along the line II-II in Fig. 1.

In FIG. 1, the two trailing arms 1 can be seen, to which the two wheel axles 2 are attached. At 3 are the support plates indicated for strong coil springs, not shown, which are located on the other side on the underside of the caravan or at another point on the chassis. The two trailing arms are connected to one another by a cross brace 4, which in the present section consists of two parts 5 and 6, each integrally angled sections of the tubular Represent trailing arm 1. These cross strut sections 5 and 6

are connected to one another by means of a round bolt 7, which protrudes into them with the interposition of plastic bearing bushes 8 and thereby causes a rigid connection of the sections 5 and 6, but both parts nevertheless in the Longitudinal axis are freely rotatable. A collar 9 in the middle of the round bolt 7 forms an insertion limit and prevents this Too far or even complete insertion of the round bolt into one of the tubular cross strut parts 5 or 6.

Claims (4)

ι · · t β% I · · I 111 I · I I I 1 I I Il II 1 ^ J ι claims for protection 1. Twist arm axle for vehicles, caravans, etc. with the Wheels are connected to each other by a cross strut rotatably mounted on the chassis, upwards on the chassis Cushioned trailing arm, characterized in that the transverse strut (4) is divided and the two parts (5, 6) are connected to one another in a rigid manner and rotatable about their longitudinal axis are. 2. twist beam axle according to claim 1, characterized in that the cross strut (4) is tubular and its two parts (5,6), preferably with the interposition of Plastic bearing bushes (8) are mounted on a round bolt (7). 3. twist beam axle according to claim 2, characterized in that the round bolt (7) has one between the cross strut parts (5,6) protruding collar. 4. twist beam axle according to one of claims 1 to 3, characterized characterized in that the cross brace parts (5,6) in one piece F are angled sections of the trailing arm (1).