Zf Friedrichshafen Ag

Zf Lemforder Metallwaren Ag

Zf Lemf&ouml;rder Metallwaren Ag

Holger Bublies

Reinhard Buhl

Reinhard Richter

Uwe Cossmann

Jens Eismann

Eike Helm

Matthias Quaing

Werner Schmudde

Daniel Wolf

Sören Knopp

Ralf Kunze

Thomas Eifflaender

Matthias Gercke

Markus Steffens

Frank Anna

Michael Schauer

Stefan Wolter

Oleg Friesen

Anna Frank

A wheel suspension for a vehicle includes: a steering knuckle support; a steering knuckle mounted at the steering knuckle support so as to be swivelable around a steering axis; a vehicle wheel mounted at the steering knuckle so as to be rotatable around a wheel rotational axis; and a plurality of links by which the steering knuckle support is articulated at a vehicle frame such that the steering knuckle support is moveable in a vertical direction of the vehicle relative to the vehicle frame. A first one of the links is configured as a first control arm configured as a four-bar link, and a second one of the links is configured as a second control arm arranged offset relative to the first link in the vertical direction of the vehicle, and wherein the second link is configured as a two-bar link that is adjustable in length.

Wheel suspension for a utility vehicle

A four-point link for the suspension of a rigid axle which has four bearing seats. Two bearing seats can be articulated on the axle and two can be articulated on the vehicle frame. The link has a single-piece link body which is inscribed by the trapezoid formed by the bearing seats. The link body is formed of a fiber-composite arrangement that comprises at least one longitudinal fiber arrangement. The longitudinal fiber arrangement encases the bearing seat, at least along half circumference thereof and extends along at least a portion of the link body in order to optimize loading, reduce mass and increase its application. Torsional compliance makes it possible to use relatively small and/or hard rubber bearings for articulating the four-point link or the vehicle axle.

Four-point link

A suspension system for the resilient/damped suspension of a driver's cab of a motor vehicle relative to the vehicle chassis. The suspension system has a spring/damper arrangement and a hydraulic arrangement with hydraulic cylinders on the right and left sides, relative to the driving direction. The hydraulic cylinders are connected in a cross-over manner to form a roll stabilizing device. The suspension system has an upper cross-bridge that is arranged on the driver's cab and a lower cross-bridge that is arranged on the vehicle chassis. The spring/damper arrangement and the hydraulic arrangement are positioned between and connected to the upper and lower cross-bridges.

Driver's cab suspension device with roll stabilizing means

A pivoting bearing for chassis components of motor vehicles has a tubular joint housing (), which forms a cylindrical interior space and in which a metallic internal part () and an elastomer body () are accommodated. The elastomer body () is axially pretensioned in the axial longitudinal direction via the intermediary of stop rings (), which are connected with the elastomer body and cooperate with corresponding projections (), which project into the interior space of the joint housing (). At least one of the projections is formed by a spring lock washer (), which is inserted into a radial depression () of the interior space of the joint housing () and is in contact with a recess (). The recess extends circumferentially radially at the outer edge of the stop ring () and is engaged by the spring lock washer () in the mounted state of the pivoting bearing.

Pivoting bearing

A steering triangle () is provided for the axle suspension of motor vehicles for the articulated connection of a vehicle axle with a vehicle chassis with two control arms (). The control arms are connected to each other in a joint housing () formed by the control arms () together for a rubber-metal bearing () for fixing the steering triangle () on the vehicle axle. The rubber-metal bearing () has a pivot axis () provided with a spherical surface and an elastomer body (), which extends around the pivot axis () at least in the area of the spherical surface and which is accommodated in a recess () located within the joint housing (), in which steering triangle two pressing rings () are arranged within the recess () of the joint housing () on the axial outer sides of the elastomer body (). The pressing rings can be moved toward each other by a tensioning device via the intermediary of stop faces () of the joint housing (). The stop faces are in contact with the outer sides of the pressing rings (), which outer sides face away from each other. The rubber-metal bearing can be pretensioned both in the axial direction and in the radial direction, so that stronger forces can be absorbed due to the higher rigidity achieved as a result.

Steering triangle

An axle suspension for rigid axles of vehicles, especially air-suspension (e.g., with air shock absorbers/air springs) utility vehicles, is presented, in which a twistable four-point connecting rod ( ), which is connected in an articulated manner to the vehicle axle ( ), on the one hand, and to the vehicle body ( ), on the other hand, and which is connected to the vehicle axle ( ) and to the vehicle body ( ) by four said joints ( ) each located at spaced locations from one another in the transverse direction of the vehicle. The four-point connecting rod is arranged above the vehicle axle ( ). At least one axle strut ( ), which extends in the longitudinal direction of the vehicle and connects the vehicle axle ( ) to the vehicle body ( ) in a vertically movable manner, is arranged on each side of the vehicle for guiding the axle. At least one air spring assembly unit ( ) is arranged between the vehicle axle ( ) and the vehicle body ( ) for spring suspension. The axle struts are each connected to the vehicle axle ( ) by a molecular joint ( ). The articulated mounting of the vehicle axle leads to a markedly more favorable elasticity for the entire system of the axle suspension and to an unambiguous assignment of the kinematic conditions under all driving conditions, so that an inward and outward deflection of the axle as well as the pendular behavior are not adversely affected by squeezing or jamming of the vehicle axle.

Axle suspension for rigid axles of vehicles

An axle suspension for rigid axles of vehicles, especially air-cushioned utility vehicles includes a twistable fur-point connecting rod ( ) connected above the vehicle axle ( ) to the (vehicle axle ( ). The twistable four-point connect rod ( ) is connected to the vehicle chassis ( ) via two said joints ( ) each, which are arranged at spaced locations from one another in the longitudial direction of the vehicle. At least one spring assembly unit ( ) per vehicle side is located for spring suspension between the vehicle axle ( ) and the vehicle chassis ( ). An axle strut ( ) for axle guiding, extends approximately in the middle of the vehicle in the longitudinal direction of the vehicle and connects the vehicle axle ( ) to the vehicle chassis ( ) in a vertically movable manner.

An axle suspension for rigid axles in vehicles, especially utility vehicles, with longitudinal control arms extending in the longitudinal direction of the vehicle and connecting the vehicle axle to the vehicle body in a vertically movable manner. The longitudinal control arms are arranged for axle guiding on each side of the vehicle approximately at the same level. A four-point torsional connecting element is articulated to the vehicle axle, on the one hand, and to the vehicle body, on the other hand. The four-point torsional connecting element is arranged above the vehicle axle and is connected as a flexible cross to the vehicle axle and to the vehicle body via two body and axle joints located at spaced locations from one another in the transverse direction of the vehicle. The arms of the four-point connecting rod are designed in whole as a one-piece forged part and are girders subject to bending with an approximately rectangular cross section. One of the arms has a predetermined breaking point.

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Holger Bublies