Spacing device for objects conveyed through an operating machine, in particular for cardboard box closing and/or sealing machines.

摘要

The device comprises at least one lever (28) pivoted on a spreading section (18) of an entrainment unit (7). Said lever (28) is elastically stressed in a position such that a first portion (27) thereof is normally moved toward the interior of the machine and inserted in the path of travel of the objects while a second portion (30) thereof bearing a passive stopping means (34) and located upstream from the first (27) is normally moved toward the exterior of the machine and outside the path of travel of the objects. When a first object meets said first portion (27) of the lever (28) moving it outwardly, the second portion (30) of said lever (28) is moved inwardly in such a manner that said stopping means (34) can prevent advance of a second object until the first object reaches a desired distance.