Contitech Antriebssysteme Gmbh

Ina Walzlager Schaeffler Ohg

Manfred Bonkowski

Reinhard Teves

Henning Kanzow

Thomas Baltes

Tim Fiss

Ralf Kaufmann

Claus-Lüder Mahnken

Reinhold Moses

Klaus Bruchner

Markus Obert

Felicitas Broianigo

Siegmar Gebhardt

Mario Pastuovic

Antonius Dikmans

Michael Huss

Christian Greiner

Timo Sebastian Kasak

The invention relates to a drive belt () having a main body into which one or more tension strands () composed of para-aramid in cord construction are embedded, wherein each tension strand () has twisted plies each formed from at least one twisted yarn, and wherein the turning direction of the respective ply (first twist) is the opposite of the turning direction of the cord (final twist). It is a feature of the invention that the tension strands () each have at least four plies, wherein the twist factor TMof the plies (first twist) is between 4.5 and 5.4, and the twist factor TMof the cord (final twist) is between 2.7 and 3.8, and the ratio of the twist factor of the plies to the twist factor of the cord (TM/TM) is between 1.3 and 1.5.

Drive belt, use of a drive belt of this type as a V-ribbed belt, and production method

The invention relates to a drive belt for a traction mechanism drive, having a radially externally arranged top layer () composed of a fiber-containing elastomer or of an elastomer comprising a fiber mesh, having a radially centrally arranged tension member layer () composed of a wound tension strand or a plurality of circumferentially oriented tension strands, and a radially internally arranged substructure () composed of an elastomer, wherein at least one wedge-shaped rib is integrally formed in the substructure (), a coating layer () composed of a circumferentially open fiber mesh being applied to the outer surfaces of said wedge-shaped rib. In order to prevent an abrupt change in the friction coefficient at the force-transmitting flanks of the ribs, provision is made for the circumferential ends () of the coating layer () and a parting joint (), which is filled by the elastomer of the substructure (), between said circumferential ends () of the coating layer () to be covered with a transverse strip () composed of a vulcanizable material, wherein said vulcanizable material has a reduced friction coefficient in relation to the elastomer of the substructure ().

Drive belt and method for the production thereof

A tensioner for a traction means, particularly a belt (7), comprises a protective plate (1) which is displaceable relative to a stationary machine element, the tensioner further comprises a tension roller (2) mounted rotatably on a bearing pin (3) for contacting the belt (7) and to obtain a perfect tensioning of the belt, the bearing pin (3) comprises an eccentric (5) which is received on the protective plate (1), the longitudinal axes of the eccentric (5) and the bearing pin (3) being spaced from one another by an eccentricity e, and a pivoting of the bearing pin (3) about the eccentric (5) being limited by a stop (8, 9).

Tensioner for traction means with predefined tensioning displacement

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Wedemark, Germany

Manfred Bonkowski