Rack

Shelf, comprising at least one vertically alignable longitudinal section;

• a holding device attachable on the longitudinal section in any desired position;
• and
• bearing structures which are designed to bear shelf boards, cabinet elements or other shelf accessory items;
• wherein the holding device comprises a first plate-shaped basic body and a second plate-shaped basic body, on whose sides remote from one another clamping jaws are installed,
• wherein the clamping jaws are able to be tensioned with respect to one another via a tensioning member, and the clamping jaws are pressable against clamping surfaces of the longitudinal section,
• wherein the plate-shaped basic bodies are disposed lying on top of one another and are displaceable in a guided way via a guide member, and the clamping jaws are thereby able to be tensioned against lateral surfaces of the longitudinal section, and wherein borne in a rotatable way in the first plate-shaped basic body is a rotational shaft or axis of a first eccentric having an eccentric body that projects into a recess of the second plate-shaped basic body.