Accumulating portal conveyor

An accumulating portal conveyor, comprising:

• a drivable endless conveyor belt,
• a frame configured to support and guide the conveyor belt, which frame is provided with a first helical path and a second helical path which lies at a distance from the first helical path, a bridging path and a return path, which are arranged such that under operating conditions the conveyor belt successively follows the first helical path upwardly, the bridging path, the second helical path downwardly and the return path, and such that in a transverse direction of an upright plane through central centerlines of the first and second helical path a free passage below the bridging path and between the helical paths is provided, wherein the bridging path is provided with a static part having a fixed position with respect to the helical paths and a dynamic portion which is displaceable in a transverse direction of the upright plane so as to be able to change the path length of the conveyor belt between the helical paths, and wherein at least a portion of the return path is displaceable with respect to the helical paths for compensating the change of the path length of the conveyor belt at the bridging path;
• wherein the static part of the bridging path has two parallel legs which extend in a transverse direction of the upright plane and the dynamic part of the bridging path has a U-shape including two parallel legs as seen from above, wherein the dynamic part is displaceable in a longitudinal direction of the parallel legs and the respective legs of the static part and dynamic part cooperate for supporting and guiding the conveyor belt via the U-shape in different positions of the dynamic part.