Mechanism for moving shelves of a refrigeration appliance and refrigeration appliance

A mechanism for moving shelves of a refrigeration appliance, the-refrigeration appliance comprising a refrigeratable cabinet provided with at least one base and two side walls that are disposed substantially perpendicular to the base, the side walls being substantially parallel and opposite to each other, and the mechanism comprising at least:

• one supporting device associated to one of the side walls of the refrigeratable cabinet by means of a side bar, the side bar having a longitudinal portion that is substantially parallel to the base, wherein the association between the supporting device and the side bar is able to provide a mechanical support to a shelf being disposed substantially parallel to the base;
• and
• a pivoting arm that associates the shelf to the supporting device, the pivoting arm being provided with at least a first end connected articulatedly to the shelf, wherein the first end is removably fitted to the shelf through interference, and a second end connected articulatedly to the supporting device, the pivoting arm being able to move angularly so as to allow the shelf to be moved in relation to the supporting device, wherein the angular movement of the pivoting arm in the first direction is able to allow the shelf to be displaced from an upper position to a bottom position, and, the angular movement of the pivoting arm in a second direction, opposite to the first direction, is able to allow the displacement of the shelf from the bottom position to the upper position at least one electrical motor associated to the pivoting arm, the electrical motor being able to provide the angular movement of the pivoting arm, at least one levering device operatively associated to the pivoting arm, the levering device being manually operable, the levering device being able to be moved in a first angular direction so as to allow the displacement of the shelf from the upper position to the bottom position, the levering device being able to be moved in a second angular direction, opposite the first direction, so as to allow the displacement of the shelf from the bottom position to the upper position, wherein the levering device comprises an internal toothed gear operatively associated to a braking element, the braking element being able to provide a controlled speed to the angular movement of the levering device, wherein the braking element is operatively associated to a locking element by means of an elastic element, the elastic element being able to either compress or decompress during the angular movement of the levering device in the first direction, and the elastic element being able to either decompress or compress during the angular movement of the levering device in the second direction, the locking element being able to establish an extreme limit of movement of the levering device.