Fecha de publicación: 05/10/2016 Fuente: WIPO "hive" The present invention relates to a grid ring brood comb frame for cylindrical brood chamber hives, which has a brood comb frame (20) carrying the comb (6), and the brood comb frame (20) is supplied with connection bodies (40) for connection to the rotating structure. The characteristic feature of the invention is that a grid ring (30) is located at least partially running around the external shell surface (21) of the brood comb frame (20) carrying the comb (6) opposite to the comb (6), where the brood comb frame (20) and the grid ring (30) are connected to each other via connection sections (31), the grid ring (30) is supplied with a first edge (32) extending beyond the longitudinal external plane (S) resting on the first side surface (22) of the brood comb frame (20), the height (M) of the first edge (32) measured from the longitudinal external plane (S) of the brood comb frame (20) is between 1÷8 mm, furthermore the connection sections (31) between the brood comb frame (20) and the grid ring (30) are interrupted by one or more bee spaces (34), where the radial dimension of the bee space (34) is between 4÷25 mm.