Sandpaper roll dispenser

Claim 1

A paperboard blank for forming a dispenser for rolls of sandpaper or the like, comprising (a) a rectangular blank (2), containing first (4), second (6), and third (8) spaced vertical fold lines for defining rear (10), first side (12), front (14), and second side (16) walls, respectively; (b) rear (18), first side (20), front (22), and second side (24) wall bottom flaps connected by horizontal fourth fold lines (26) with the lower edges of said rear, first side, front and second side walls, respectively; (c) a rectangular rear wall top flap (28) connected at its lower edge by a horizontal fifth fold line (30) with the upper edge of said rear wall; (d) a rectangular rear wall top locking member (32); (e) horizontal sixth fold means (36) connecting said rear wall top locking member with the upper edge of said rear wall top flap; (f) a rear wall top locking flap (38) connected by a horizontal seventh fold line (40) with the upper edge of said rear wall top locking member; (g) first (42) and second (44) rectangular side wall top flaps connected by horizontal eighth fold lines (46) with the upper edges of said first and second side walls, respectively, each of said first and second side wall top flaps having a width (g) that is less than the associated side wall, said side wall top flaps being adjacent the fold lines defining said front wall, respectively, whereby said first and second side wall top flaps are spaced from the vertical edges of said side walls remote from said front wall, respectively; and (h) first (48) and second (50) side wall top members connected by horizontal ninth fold lines (52) with the upper edges of said first and second side walls adjacent the vertical edges of said side walls remote from said front wall, respectively, each of said side wall top members containing angularly arranged tenth fold lines (54) each extending from the corresponding vertical edge of said side walls remote from said front wall at an acute angle (α) relative to the top edge of the associated side wall, thereby to define in each side wall top member a triangular first portion (56, 60) connected with the associated side wall and a second portion (58,62), the generally, vertical edge of said second portion adjacent the associated side wall top flap being relieved and angularly arranged at an acute angle (β) relative to the adjacent vertical edge of the associated side wall top flap, whereby when said rear, first side, front, and second side walls are folded inwardly about said first, second, and third fold lines to form a hollow tube having a rectangular cross-sectional configuration, when said first side, rear, front, and second side wall bottom flaps are folded upwardly about said fourth fold lines to positions normal to their associated walls, when said first and second side wall top flaps are folded downwardly about said eighth fold lines to positions normal to their associated walls, when said first and second side wall top members are folded downwardly about said ninth fold lines to positions normal to their associated walls, when said rear wall top flap is folded downwardly about said fifth fold line to a position normal to said rear wall, and when said rear wall top locking flap is folded downwardly about said seventh fold line to a position normal to said rear wall top flap, the dispenser is in a closed shipping condition; and when said rear, first side, front, and second side walls are folded inwardly about said first, second and third fold lines to form a hollow tube having a rectangular cross-sectional configuration, when said first side, rear, front, and second side wall bottom flaps are folded upwardly about said fourth fold lines to positions normal to their associated walls, when said second portions of each of said first and second side wall top members are folded downwardly about said tenth fold lines, respectively, when said rear wall top flap is folded downwardly about said fifth fold line to a position in contiguous relation with said first and second side wall top member second portions, and when said rear wall top locking member is folded downwardly about said sixth fold means to a position parallel to and spaced from said rear wall top flap with said first and second side wall top member second portions arranged therebetween, the dispenser is in its dispensing condition.