Disk broom, sweeping device and floor cleaning machine

A floor cleaning machine comprising:

• a disc broom that is rotatable about a rotation axis, the disc broom having a base body, bristles and a cover element, the base body having a circumferential outer edge, the bristles having proximal ends and distal ends, the proximal ends of the bristles being attached the base body, the bristles extending away from the base body and terminating at the distal ends in a continuous planar shape, all of the distal ends cooperating to define a sweeping plane, the sweeping plane being perpendicular to the rotation axis, the cover element having a shell that is made of a flexible elastomeric material that is capable of flexing with the bristles, the shell extending away from the base body toward the sweeping plane, wherein the shell has an inner side, which faces an interior of the shell, and an outer side that faces an exterior of the shell,
• wherein the shell envelopes the bristles perpendicularly to the rotation axis such that the bristles are disposed in the interior of the shell;
• wherein the cover element has an attachment section, and wherein the attachment section is attached to the base body at an outer edge thereof, the cover element extending to the sweeping plane.