DE202017004185U1 - roll stabilizer - Google Patents

Abstract

Roll stabilizer (A), in particular for compensating roll motions in multi-axle vehicles, with interlocking, rotatably mounted toothed elements (1a, 1b) and spring beams (2) fastened thereto, which are subjected to flexion, characterized in that the force opposing the rolling motion is controlled by the spring arms (2). is sprung, formed by the tooth elements (1a, 1b), and is transmitted via them directly or indirectly to the vehicle body.

Description

The invention relates to a roll stabilizer for compensating rolling movements, in particular in multi-axle vehicles, via which the two wheels of a vehicle axle are connected.

The basic function of a stabilizer is to improve the road holding of vehicles when driving through curves, as well as in EP 2 524 827 A1 described.

This is achieved in said patent by the elastic connection of the two wheels of a vehicle axle by means of a torsion-loaded stabilizer.

The compression of the outside wheel and the rebound of the inside wheel generate a force in the roll stabilizer, which counteracts the rolling of the body when cornering.

With simultaneous compression of both wheels, the stabilizer shows no effect.

Unilateral deflection when traveling straight ahead - for example when passing through uneven roads - can lead to movements of the vehicle about the longitudinal axis.

The stabilizer connects opposite wheels of a vehicle axle via levers, rods, elastic elements, joints and, in the case of the invention, also via toothed elements.

Conventional stabilizer systems are relatively heavy, require a lot of space and the spring rate is often not adjustable.

The object of the invention is to provide a roll stabilizer which, in possible embodiments, can even be adjustable in its spring rate during travel, whose center of gravity is far in the middle of the vehicle and / or very low, requires little space and opposite other stabilizer systems is easier.

The as "dental element" ( 1a . 1b ) are rotatably connected to the vehicle around the bore, connected to the tooth elements ( 1a . 1b ) are the "spring arms" ( 2 ) at one of its ends, the other end of each of the spring arms ( 2 ) is directly or indirectly, as in z. B. 1 . 5 and 6 represented by "clevises" ( 3 ) and "struts" (ST) connected to the wheel guide elements, such as the "rockers" (W), the "control arms" (Q) or the "wheel carriers" (RT).

When z. B. compression of the left wheel ( 7 ) in 5 when driving through a right-hand bend, the left-hand pushrod (P), the left-hand rocker (W), the left-hand strut (ST), the left-hand clevis ( 3 ) and the left spring arm ( 2 ) the left tooth element ( 1a ) in rotation, about the teeth resulting from a rotational movement of the left tooth element ( 1a ) opposite rotational movement of the right tooth element ( 1b ), which via the right spring arm ( 2 ), the right fork head ( 3 ), the right strut (ST), the right rocker (W), the right pushrod (P) and the right wheel support (RT) for compression of the right wheel ( 7 ) leads to the same vehicle axle, thus one of the rolling motion of the vehicle opposite force is obtained.

The mounting of the stabilizer (A) can be in or against the direction of travel, generally in any imaginable position about an imaginary axis passing through the two exemplary clevises ( 3 ) runs.

The introduction of force into the spring arms ( 2 ) can be used at various angles and over a variety of components, such as the struts (ST) and the fork heads ( 3 ), respectively.

Clevis ( 3 ) and spring arm ( 2 ) are releasably or non-releasably connected to each other in terms of shape, force or material, possibly also adjustable via a servo motor in order to change the spring rate, the fork heads ( 3 ) serve in 1 as an example as force application points on the spring arms.

The spring arms ( 2 ) are releasably or non-releasably positive, force or cohesive with the tooth elements ( 1a . 1b ), possibly also via a servomotor adjustable to change the spring rate.

The spring arms ( 2 ) are subjected to bending and thus form the elastic elements.

The spring rate of the spring arms ( 2 ) is dependent on its material and its shape, the cuboid shown is only an example.

When installed, the spring rate of the roll stabilizer is in 1 adjustable by different positioning of the rod ends ( 3 ), which serve as examples of force application points, on the spring arms ( 2 ) and different positioning of the spring arms ( 2 ) on the tooth elements ( 1a . 1b ), this is a detachable connection required, the adjustment could also be done with servomotors.

With active roll stabilizers, instead of the tooth elements ( 1a . 1b ) Elements are used, which have no teeth, themselves can move independently of each other and z. B. are connected to an actuator.

1 An assembly drawing in the plan view of a roll stabilizer (A) according to the invention with 2 intermeshing teeth elements rotatably mounted about its bore (FIG. 1a . 1b ), 2 spring arms ( 2 ) and 2 clevises ( 3 )

2 In the 1 illustrated embodiment of a toothed element ( 1a / 1b ), the variants of the tooth elements for left and right ( 1a and 1b ) are symmetrical except for the teeth, but the teeth must be shifted by one tooth.

3 In the 1 illustrated embodiment of a spring arm ( 2 ) in the dimetric view.

4 In the 1 illustrated embodiment of a clevis ( 3 ) in the dimetric view.

5 In the 1 illustrated embodiment example installed in a vehicle with pushrod damping, the installation variant of the roll stabilizer (A) is optimized for a low center of gravity

6 One of the in 1 illustrated embodiment very similar variant of the roll stabilizer (A) in an installation variant that is optimized for a center of gravity.

LIST OF REFERENCE NUMBERS

A

roll stabilizer

1a

Tooth element 1

1b

Tooth element 2

2

spring arm

3

clevis

5

Vehicle body, rear view, exemplary

6

Vehicle tail, top view, exemplary

W

Rocker, also called Rocker, exemplary

FDE

Spring damper unit, exemplary

Q

Wishbone, exemplary

R

wheel

P

pushrod

ST

strut

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2524827 A1 [0002]

Claims (6)

Roll stabilizer (A), in particular for compensating roll motions in multi-axle vehicles, with interlocking, rotatably mounted tooth elements ( 1a . 1b ) and attached thereto, subjected to bending spring arms ( 2 ) characterized in that the rolling motion of the opposite force by the spring arms ( 2 ) is urged by the tooth elements ( 1a . 1b ) is generated, and is transmitted via them directly or indirectly to the vehicle body. Roll stabilizer (A) according to claim 1, characterized in that the elasticity required for the desired function by the spring arms (B) claimed on bending ( 2 ). Roll stabilizer (A) according to claim 1 and 2, characterized in that the tooth elements ( 1a . 1b ) via a tooth mesh and so a reflection of the movements of these takes place. Roll stabilizer (A) according to claim 1 to 3, characterized in that the intermeshing tooth elements ( 1a . 1b ), are connected directly or indirectly and each about its own axis rotatably connected to the vehicle body. Roll stabilizer (A) according to claim 1 to 4, characterized in that the spring arms ( 2 ) on the one hand, directly or indirectly, with the tooth elements ( 1a . 1b ) and on the other hand, directly or indirectly, are connected to the Radführungselementen, for example with the wishbones (Q), or the rockers (W). Roll stabilizer (A) according to claim 1 to 5, characterized in that the spring rate of the roll stabilizer is adjustable via the variable positioning of the direct or indirect force introduction into the spring arms, the variable positioning of the spring arms on the tooth elements and the shape and the material of the spring arms.

Images