Protective device for a draining valve fitted on bags intended for the transport and handling of liquid or quasi-liquid substances

摘要

The invention relates to a protective device (10) for a drainage valve (27) fitted to bags or “bags in boxes” intended for the transport and handling of liquid or quasi-liquid substances, said device (10) being formed by a sheet (1) of flexible material folded in on itself, two parallel side edges of said sheet being fixed to one another over at least a part of their length so as to form an approximately rectangular envelope which is open on one of its sides, called the insertion side, into which a reinforcing panel (30) located on the side of the bag and provided with the drainage valve (27) is inserted, said panel (30) having a thickness e1 and being provided with a hole (T) for said drainage valve (27) to pass through. The envelope has at least one opening (4) on its front and/or rear side for the drainage valve (27) to pass through, and at least one closed compartment (5A, 5B, 5C) containing flexible material, said compartment causing an overthickness e2 at the surface of the envelope, such that the sum of e1 and e2 is approximately equal to or greater than the height H of the drainage valve (27).

主权项

1. Protective device for a draining valve fitted to the bags intended for the transport and handling of liquid or quasi-liquid substances, said device being formed by a sheet of flexible material folded on itself, two parallel lateral edges of said sheet being fixed to one another on at least a part of their length so as to form a substantially rectangular envelope open on only one of its sides, to form an introduction side, into which a reinforcing panel will be disposed on a side of the bag provided with the draining valve is inserted, said panel having a thickness and being provided with a hole permitting passage of said draining valve, wherein the envelope has at least one opening on at least one of its front side its rear side permitting the passage of the draining valve and at least one closed compartment containing flexible material, said compartment creating an over-thickness on the surface of the envelope, so that the sum of and is at least substantially equal to a height of the draining valve.