Contitech Antriebssysteme Gmbh

Continental Aktiengesellschaft

Conitech Antriebssysteme Gmbh

Inventio Ag

Contitech Deutschland Gmbh

Hubert Göser

Hugh James O'Donnell

Christoph Bederna

Stephan Brocke

Markus Obert

Jan-Henning Quass

Helmut Wille

Detlef Harbecke

Thomas Winkler

André Kucharczyk

Andre Kucharczyk

Sebastian Jirauschek

Andrè Kucharczyk

Stefen Brocke

A traction system includes a composite rope (), especially for an elevator. The composite rope () is driveable by a traction sheave (). The traction system has a composite rope that is easy to handle, whereby high traction forces can be transferred, and the composite rope enables a narrower drive unit than known belt technology. To this end, the composite rope has parallel individual tension members () surrounded by an elastomer material which are interconnected by an elastomer connecting layer () on one side, and the tension members () engage in corresponding grooves () of the traction sheave (). The penetration depth of the individual ropes () of the tension members () in the grooves of the traction sheave () is at least 25% of the diameter (d) of the individual ropes ().

Traction system and an elevator arrangement incorporating said traction system

A traction device includes tension members () coated with an elastomer material to form jacketed tension members (). The jacketed tension members () are arranged next to each other in a plane in the cross section of the traction device, at such a distance from each other that there is a clear space () between each two mutually adjacent ones of the jacketed tension members (). The jacketed tension members () are connected at the back thereof by a back layer. The clear space () begins on the side facing away from the back layer () and extends at least beyond the center point () of the tension member, and the ratio of the second diameter (d) of the jacketed tension member () in relation to the first diameter (d) of the tension member () is between 1.05 and 2.25. The invention is also directed to a traction system which includes the traction device which can be driven by at least one traction sheave (), and each jacketed tension member () engages in a corresponding groove () of the traction sheave (). The back layer () is arranged on the side of the jacketed tension members () that faces away from the side engaging in the grooves () of the traction sheave (). At least one tension member () engages in the corresponding groove () of the traction sheave () by between 5% and 25% of its diameter (d).

Traction device, traction system incorporating said traction device and an elevator arrangement incorporating said traction system

The invention relates to a traction device (), especially for an elevator system. The traction device () is driveable by a traction sheave. The task which is the basis of the invention is to provide a traction device which is simple to manipulate. High tension forces are transferable and the traction device makes possible a drive unit of lesser width compared to the known belt technology. For this purpose, the traction device is configured as a composite rope () wherein individual tension carriers () are connected to each other via a one-sided elastomer connecting layer (). The individual tension carriers () lie in parallel and are jacketed with elastomeric material. The tension carriers () engage in corresponding grooves () of the traction sheave (). The tension carriers () engage in the grooves () of the traction sheave () with at least 25% of their total diameter.

Traction device

Drive belt

A flat belt (), which is made of elastomeric material (), is made up of a first partial belt () and a second partial belt (). The first partial belt () is reinforced with a reinforcement layer () made up of cords. A layer separation which is to be feared theoretically is to be reliably avoided and the bonding of the belt material to the reinforcement layer () is to be optimized. The first belt part () is provided with slots () with the aid of mold drum winding-projections (); the second belt part () defines a filling of the slots () of the first belt part (). Preferably, the reinforcement layer () is positioned centrally in the neutral bending plane of the finished flat belt (). The first belt part () and the second belt part () can be made of different elastomeric materials (). Also, at least one of the two surfaces of the belt () can be coated and/or provided with a longitudinal profile or transverse profile.

Flat belt made of elastomeric material

The two belt parts () of a belt () made of plasticatable material are produced with the aid of a first station () and a second station (). The first station () includes a rotatable mold drum () and a continuous mold belt (). The mold belt () is brought together with the mold drum () along a peripheral section via an upper pressure roller (), a lower pressure roller () and a tensioning roller () in such a manner that a hollow mold space () is formed between the mold drum () and the mold belt (). An extruder () is mounted forward of the hollow mold space (). Furthermore, the first station () includes a filament feed () for forming a reinforcement layer () in the first belt part (). For a simplified manufacture of the belt (), the second station () includes only a direction-changing roller () in addition to the extruder () and a mold drum (). The spacing () between the direction-changing roller () and the second mold drum () equals the thickness of the belt () to be manufactured. To limit and guide the first belt part () to be manufactured and/or the belt (), the first mold drum (), the second mold drum () and/or the direction-changing roller () are preferably provided with flange discs (and/or). In order to make possible a targeted softening of the surfaces of the belt parts to be joined, the various rollers (') and the two mold drums () can be provided with heating/cooling.

Arrangement for making a belt made of plasticatable material

A linear drive includes a toothed belt () driven by direction-changing rollers () in the pretensioned state. The toothed belt () has at least one tension reinforcement. The teeth () of the belt () engage in the teeth gaps () of a linear toothed counterpiece () over a specific length. The pitch of the teeth () of the belt is slightly less, up to 0.8%, than the pitch of the toothed counterpiece () in the pretensioned state of the toothed belt () and during loading of the toothed belt which occurs during operation under load. The tooth flank () of the tooth () of the belt is at right angles or almost at right angles to the plane of the tension reinforcement () and the tooth gap () of the toothed counterpiece () is approximately 20% to 80% wider than the width of the tooth () of the belt. The belt teeth () are elastically configured compared to the high stiffness of the tension reinforcement ().

Linear drive

A toothed belt is provided with at least one end attachment part for connecting an end portion of a toothed belt to a housing part or a component to be driven. The end attachment part is a formed strip made of metal or plastic in order to make the attachment of the toothed belt quicker and simpler. The strip has elements or sections which engage in the teeth of the end portion and are securely held therein. In the assembled condition, the end attachment part includes a portion to facilitate a mechanical connection at its end facing away from the end portion of the toothed belt.

Growing community of inventors

Dannenberg, Germany

Hubert Göser