Fastening device for comb elements on a circular comb

A circular comb of a combing machine, comprising:

• a base body oriented parallel to a rotational axis of the circular comb, the base body comprising an inner support surface and a radially oriented opening;
• at least one comb element disposed on an outer circumference of the base body;
• a retaining element connected to the comb element, by which the comb element is held on the outer circumference of the base body;
• a bolt-shaped fastening element that braces the retaining element against the base body, the fastening element comprising a first end section that protrudes at least partially into the retaining element, a middle section adjoining the first end section that protrudes at least partially into the opening in the base body, and a second end section adjoining the middle section and supported on the support surface, the second end section extending beyond a cross-sectional area of the opening in the base body;
• wherein the retaining element comprises a hollow body having a web situated opposite from the base body and a through opening, the middle section of the fastening element protruding into the through opening;
• a spring element configured with the middle section of the fastening element, the spring element comprising a first end supported on a support surface of the first end section of the fastening element and a second end supported on a support surface of the web within the hollow body;
• the second end section of the fastening element fixed in a locked position relative to the support surface of the base body by a retaining device against longitudinal displacement of the fastening element from an elastic force of the spring element;
• the base body comprising circumferentially extending and spaced-apart support ribs on which ends of the comb elements rest, the support ribs extending parallel to the rotational axis of the circular comb and defining a first depression in the base body that extends parallel to the rotational axis of the circular comb;
• and
• the retaining element extending through the first depression and into a second depression defined in a bottom surface of the first depression.