Abstract: Disclosed is a bellows protection connecting adjacent trolleys of a conveyor belt along an object transport line, where the conveyor belt includes trolleys movable along tracks and connected to one another by connectors allowing their reciprocal rotation at least around a vertical or horizontal axis. The device includes: a pleated covering positioned between two adjacent trolleys and connected thereto; a beam supporting the covering transversely to the direction of advancement of the transport line; and a base structure resisting vertically directed forces and supporting the beam. The base structure includes a reinforcing element binding in at least one point the beam. The reinforcing element includes: a first punctiform binder connecting it to at least one of the two trolleys; and a second punctiform binder connecting it to the at least one beam and adapted to avoid reciprocal transversal sliding between it and the at least one beam.

Abstract: Flat protective cover (1) with two degrees of freedom for tool machines, which can be associated with an operating member (A) movable along at least two main directions (D1, D2), includes: at least a first flat covering element (2), operatively connected to the operating member (A); at least a second flat covering element (3); guide and retaining elements (5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b) to mutually couple in a sliding way the covering elements, wherein the protective cover (1) further includes an intermediate frame (4) between the first (2) and second (3) flat covering element, arranged for allowing mutual sliding of the flat elements (2,3) along the two mutually orthogonal main directions (D1, D2), and the guide and retaining elements (5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b) include pairs of linear guides (5a, 5b, 6a, 6b) arranged for co-operating by mutual sliding with pairs of blades (7a, 7b, 8a, 8b).

Abstract: Flat protective cover (1) with two degrees of freedom for tool machines, which can be associated with an operating member (A) movable along at least two main directions (D1, D2), includes: at least a first flat covering element (2), operatively connected to the operating member (A); at least a second flat covering element (3); guide and retaining elements (5a, 5b, 6a, 6b, 7a, 7b, 8a , 8b) to mutually couple in a sliding way the covering elements, wherein the protective cover (1) further includes an intermediate frame (4) between the first (2) and second (3) flat covering element, arranged for allowing mutual sliding of the flat elements (2, 3) along the two mutually orthogonal main directions (D1, D2), and the guide and retaining elements (5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b) include pairs of linear guides (5a, 5b, 6a, 6b) arranged for co-operating by mutual sliding with pairs of blades (7a, 7b, 8a, 8b).