DE2327011A1 - WHEEL SUSPENSION FOR VEHICLES - Google Patents

Description

The invention relates to a wheel suspension for vehicles which cushion the wheels individually by torsion spring elements are that via a rocker arm or the like. With the wheel center are connected.

Trailing arm axles are known in which as torsion spring elements Torsion bar or rubber torsion suspension (e.g. DOS.163064-7) are provided. However, these axes represent an unfavorable solution in terms of driving mechanics, since the instantaneous center is in the center of the axis the road, so that an unfavorable rolling behavior of the Vehicle body is the result. You don't have any free ones here either Parameters for correcting the driving behavior in the curve.

Furthermore, semi-trailing arm axles with coil springs to absorb the high forces and mintiejBtana fPVfXi pivot points per wheel side ",

which lie on a common "skewed spatial axis." With such facilities, the position of the instantaneous center as well as the self-steering behavior of the deflecting wheel through certain design measures within certain limits influence. However, they stelkn a very expensive and therefore expensive construction. In the hinge points occur proportionally large forces that are introduced punctiformly into the floor of the car, causing considerable wear and tear on the corresponding Posts. Finally, these trailing arm axles have a relatively large clearance height requirement for the coil springs and require complex constructions of the upper spring abutment.

The object of the present invention is to provide a simple, To create inexpensive, robust and maintenance-free wheel suspension with little installation space requirement, all of which are mechanically driven Has advantages of the trailing arm axle, in particular the ability to influence the instantaneous center and driving behavior.

This object is achieved in that the torsion spring elements starting from a central part on the vehicle floor in the horizontal plane at an angle to the wheel axis diagonally * according to Art are directed by trailing arm axles. Through this invention (BaBe structural arrangement of the lorsion spring elements can do this Both the ball of the semi-trailing arm and that of the suspension take over at the same time. The heavily loaded with the trailing arm axle and are therefore expensive hinge points, along with what is otherwise necessary expensive spring effort, relocated to the torsion suspension.

409850/0159

The space required to accommodate the helical compression spring and the additional construction costs for the upper spring abutment are omitted without replacement. .

In a special embodiment of the invention, the torsion spring elements can also additionally in the vertical plane at an angle /? be directed obliquely downwards in relation to the Eadachse. They therefore form a solid angle with respect to the axis, which results from the specified angles oC and β in the horizontal and vertical planes. -

The axle construction according to the invention enables a large ground clearance in the center of the axle. The horizontal middle part extending transversely to the direction of travel can be placed very high, which at the same time has the advantage of an extremely high instantaneous center. According to the invention it is advantageous with a high central part that the "angle OC in the horizontal plane is greater than the angle β in the vertical plane, so that the deflecting bath goes into negative camber, whereby the absorbable cornering forces of the wheel are increased.

A particularly simple and inexpensive embodiment of the invention consists in that the torsion spring elements are formed by g the opposite to the middle part bent or arranged ends of a "rag tube, which have a prismatic inner tube

409850/0159

have cross-section and in which between the damping body each a prismatic rod is mounted from elastically flexible material, on the protruding from the pipe end End of the rocker arm is attached. Such rubber torsion bar suspensions are known per se from DOS 1 630 647. In a simplified embodiment of the invention, the middle part can also be formed by the car floor itself. According to another variant of the invention, the middle part can, in particular, also when trained as a support tube, serve as a cross member for attaching a differential gear.

In a further development of the binding, one with the two Box-shaped trailing arms connected to the ends of the rotatable part of the torsion spring element are provided through which the torsion spring element connected to the bike. It is also possible within the scope of the invention, the mutually facing, internal "To connect the ends of the resilient parts of the torsion spring elements to one another in a rotationally fixed manner by means of a torsion bar or the like, so that the torsion bar acts as a stabilizer.

The invention is shown in the drawing by way of example and schematically shown. Show it:

Fig. 1: A plan view of a wheel suspension according to the invention in support tube design,

FIG. 2: a rear view of the arrangement according to FIG. 1,

Fig. 3: an embodiment in which instead of the support tube

409850 / 01F9

middle part of the vehicle floor itself as a middle part is provided,

ig. 4 and 5: an embodiment in which the support tube middle part serves as a cross member for the suspension of a differential gear and

6: an embodiment in which the torsion spring element is connected to the wheel via box-shaped trailing arms.

In the embodiment according to FIGS. 1 and 2, the wheel suspension consists essentially of a horizontally arranged support tube 1, the two tube ends 3 and 4 are cranked from the middle part 2 so that their projection in the horizontal plane is the WinkeloC and in the vertical plane the angle β to the center line of the support tube central part 2 "and forms the wheel axle. the pipe ends 3 and have a prismatic cross-section and are dimensioned in their length in such a way that it together with the stored in them between rubber buffers rods 5 and 6 in a known manner (DOS 1 630 647) each form a torsion spring element, at the outer free end of which the wheels 9 and 10 are connected via the rocker arm 7 and 8.

The support tube middle part can be adjusted according to optimal ground clearance and, if necessary, also as a particularly inexpensive traverse for the suspension of a differential gear 11- ■ (Fig. 4 and 5) be formed. Instead of a support tube middle part 2, the fenced off parts 5 and 6 of the Tasionsfederelemente with their

409850/0159

inner ends can also be attached to the vehicle floor itself or to a torsion bar 2 'as an essential central part (FIGS. 3 and 6). FIG. 6 also shows an embodiment in which the wheels are connected to the sprung parts of the torsion spring elements 3, 5 and 4, 6 via box-shaped trailing arms 7 ¹ .

From the above description it can be seen that the inventive The basic idea of arranging the torsion spring elements at an angle to the axis can be implemented in numerous variants leaves. The invention is therefore not restricted to the examples shown.

Patent claims:

409850/0159

Claims (8)

P A T ENTANS P R ti C HE 1.) Suspension for vehicles, "in which the struggles individually • —'a are cushioned by torsion spring elements, which over a Radsch.wingb.ebel or the like. Connected to the center of the wheel are, by this. g e k e η η ζ ei c h η e t, that the torsion spring elements (4-, 5) from a central part (2.2 *) on the vehicle floor starting in the horizontal plane at an angle oC to the. Wheel axle at an angle Kind of trailing arm axles are directed. 2.) Wheel suspension according to claim 1, characterized in that; that the torsion spring elements (4,5) are directed obliquely downwards in the vertical plane at an angle β with respect to the wheel axis. 3.) Wheel suspension according to claim 1 or 2, characterized g e characterizing t, that with high central part (2.2 ') the angle cC in the horizontal plane is greater is than the angle / 3 in the vertical plane. A0985Ü / 0159 -Jc- 4.) Wheel suspension according to claim. 1 or following, thereby characterized in that the torsion spring elements (4,5) are formed by the bent or aneccdneten at an angle relative to the middle part (2,2 ') Ends Ο »^) of a support tube (1), which has a prismatic Have inner cross-section and in which between damping bodies made of elastically flexible material in each case a prismatic rod (5, 6) is mounted, at the end of which protrudes from the pipe end of the rocker arm (7i8) is attached. 5.) · Wheel suspension according to claim 1 or the following, characterized indicated that the middle part (2.2 ') is formed by the vehicle floor itself. 6.) Wheel suspension according to claim 1 or the following, characterized in that the central part (2.2 ') as a cross beam for attaching a differential gear (11) is formed. 7.) Wheel suspension according to claim 1 or the following, characterized in that one with the two Ends of the rotatable part (5,6) of the torsion spring element connected box-shaped trailing arm (7 '»8') provided is. 8.) Wheel suspension according to claim 1 or the following, characterized in that the mutually facing '". ■ - ■ - ■■■ 409850/0159 ■■■■ 3 * inner ends of the resilient parts (5, 6) of the torsion spring elements, a torsion bar or the like. (2 ¹ ) are rotatably connected. Dip1.-Ing.H.-D.Ern icke Patent attorney 409850/0159 Blank page