Slide-open package of tobacco articles with a coupon, and packing method and machine for producing the same

A slide-open package of tobacco articles, comprising:

• a parallelepiped-shaped rigid inner container (3) housing a wrapped group (2) of tobacco articles and having a bottom wall (5), an extraction opening (9) opposite the bottom wall (5), two parallel opposite major lateral walls (7), and two parallel minor lateral walls (8a, 8b) interposed between the major lateral walls (7);
• a parallelepiped-shaped rigid outer container (4), which houses the inner container (3) to allow the inner container (3) to slide between a closed position, in which the inner container (3) is inserted inside the outer container (4), and an open position, in which the inner container (3) is at least partly extracted from the outer container (4);
• and
• a removable coupon (18), which is applied to the inner container (3), is folded about the group (2) of tobacco articles, and is located between the group (2) of tobacco articles and the inner container (3);
• wherein the coupon (18) comprises:
• a first wall (19) which is positioned contacting a first wall (7) of the inner container (3);
• a second wall (22) which is connected to the first wall (19) along a first fold line (23), is folded 90° with respect to the first wall (19), and is superimposed on the extraction opening (9) of the inner container (3);
• and a third wall (20) which is connected to the first wall (19) of the coupon (18) along a second fold line (21), is folded 90° with respect to the first wall (19) of the coupon (18), is perpendicular to the second wall (22) of the coupon (18), and contacts a second wall (8a) of the inner container (3).