Blank and packaging for pack of jars with spacing/bracing part and method for packaging pack of jars with spacing/bracing part

A flat cardboard blank (1) intended for forming tubular envelope type packaging (5) for a pack (2) of jars (3), where the pack (2) includes at least one layer of jars (3), with at least four braced jars (3a), pairwise, side-by-side and facing, positively spaced by a bracing spacer, where the blank extends substantially along a plane (P) formed by a longitudinal axis (A) and a transverse axis (B) perpendicular to the longitudinal axis (A), where the plane (P) further defines a packaging axis (C) substantially perpendicular to said plane (P), the blank comprising:

• a plurality of tubular-blank panels comprising at least one top panel (10, 10a, 10b), two lateral panels (11, 11a, 11b), a base panel (12), a means of securely attaching (14) for closing the expanded blank (1) on itself;
• Cut lines, slot lines and also score lines between the tubular-blank panels able and intended for folding the tubular-blank panels, expanding the blank and shaping the packaging (5) of the pack (2);
• wherein the blank further comprises:
• a spacing/bracing part (15) connected to the tubular-blank panels by cut lines so as to be able to be detached from the tubular-blank panels when the packaging (5) of the pack (2) is shaped for being arranged and expanded into the bracing spacer and forming bracing walls on the lateral walls (6a) of the braced jars (3a);
• and wherein the spacing/bracing part (15) comprises a central portion (15a) and at least four fins (15b) extending from either side of the central portion (15a) of the spacing/bracing part (15) by being joined to said central portion by score lines suited for allowing expanding the spacing/bracing part by folding the fins relative to the central portion, where said fins (15b) form said bracing walls (16) for braced jars (3a), and where said central portion (15a) forms a spacing portion for the braced jars (3a).