Semi trailer with slatted endless floor - is moved by two endless chains driven by drums and pinions guided in grooves in chassis

摘要

The semi-trailer has a movable floor on the chassis (1) (3), with at least two longitudinal grooves. These form slideways for two endless chains (4,5) held on two drums (6,7) at the end of the floor. One drum, at least, is driven. The chains are connected by slats and the driven drum is lengthened at its ends by cylindrical parts of the same dia. as the drum. One of these lowers the drive and this drum is fixed to chain drive pinions between drum and lengthening parts and in groove extensions.