| 摘要 |
<p>The mechanism has driven and driving units that are provided with a respective toothed belt pulleys (3, 5), where one of the pulleys has an ellipse configuration with a preset width. A traction device surrounds the pulleys and is prestressed by a tensioning device. The tensioning device has a fixed component which is assigned a working eccentric acted upon by a spring and is connected to a tensioning roller.</p> |
