Tensioning device and spinning machine

A tensioning device for a spinning unit and/or stretching device, comprising:

• at least one roller;
• at least one belt;
• and
• at least one tension rod;
• wherein the tensioning device is designed and configured such as to be transferred from a functional state into a non-functional state;
• wherein, in the functional state, the at least one roller is positioned in that the at least one belt is designed and arranged for exerting a tension on the at least one roller, in that the at least one belt is further designed and arranged for running around a section of the at least one roller and a section of the at least one tension rod such that a tension is transferred from the at least one tension rod onto the at least one roller via the at least one belt;
• and
• wherein, in the non-functional state, the tensioning device is designed and configured such as to move the at least one tension rod via tension on the at least one belt for removing the at least one belt from the at least one tension rod.