Back to results
US 4,292,102 AGranted
Process and machine for covering a tubular member, more particularly for covering a box
AssigneeEmbadac
InventorGeorgy Bidegain
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeEmbadac
InventorGeorgy Bidegain
Estimating the term…
In a process and machine for covering a tubular member, with a covering. The tubular member is applied to a median part of the strip portion, leaving at least one protruding edge, the tubular member thus partially applied and adhering to the strip portion is engaged on a mandrel, the strip portion is wound round the tubular member engaged on the mandrel, and to effect this winding, the lateral parts of the strip portion are pulled up on each side of the tubular member, making them adhere to the portions projecting beyond the tubular member, and folding actions are carried out on the projecting parts of the raised lateral parts in order to bring them up to and attach them to the tubular member engaged on the mandrel, with a slight overlap, and the projecting portion of the strip portion is folded over opposite an open end of the tubular member engaged on the mandrel, and this projecting portion is inserted in the open end of the tubular member engaged on the mandrel, by exerting an axial action on the said projecting portion by means of a member, known as the cap, having the same section as the mandrel and mounted so as to be angularly fixed but movable by translation relative to the mandrel.
A machine for covering a tubular member with sheets, comprising a fixed frame, a plate mounted so as to be rotatable on the frame about a general axis, the frame having a plurality of fixed stations for the winding of an adhesive covering strip portion around the tubular member and for inserting a projection of the strip portion into an open end of the tubular member, the rotating plate having a plurality of spindles parallel to the general axis, each spindle having a mandrel of the same cross section as the tubular member mounted integrally therewith, and, mounted so as to be angularly fixed and freely movable in translation, a cap of the same cross section as the mandrel, means for controlling the rotation of the plate in order to bring the spindles successively up to the stations, means for winding the strip portion about the tubular member engaged on the mandrel, means for moving the cap in translation relative to the mandrel between a distant position and a near position in order to insert the projection of the strip portion into the open end of the tubular member, and a spindle integral with the frame and defining said general axis, said spindle having an overhanging portion supporting, at its free end, a fixed platen on which the various working stations are mounted.
A machine for covering a tubular member with sheets, comprising a fixed frame, a plate mounted so as to be rotatable on the frame about a general axis, the frame having a plurality of fixed stations for the winding of an adhesive covering strip portion around the tubular member and for inserting a projection of the strip portion into an open end of the tubular member, the rotating plate having a plurality of spindles parallel to the general axis, each spindle having a mandrel of the same cross section as the tubular member mounted integrally therewith, and, mounted so as to be angularly fixed and freely movable in translation, a cap of the same cross section as the mandrel, means for controlling the rotation of the plate in order to bring the spindles successively up to the stations, means for winding the strip portion about the tubular member engaged on the mandrel, means for moving the cap in translation relative to the mandrel between a distant position and a near position in order to insert the projection of the strip portion into the open end of the tubular member, and a spindle integral with the frame and defining said general axis, said spindle having an overhanging portion supporting, at its free end, a fixed platen on which the various working stations are mounted and, between this platen and the frame, the rotatably mounted plate.
A process for covering a tubular member, starting with an adhesive covering strip portion, slightly longer than the perimeter of the tubular member and the width of which is slightly greater than the height of the tubular member, comprising the steps of:
Dependencies are inferred from the claim text.