Envelopes – wrappers – and paperboard boxes – Paperboard box – Including a polygonal – nonrectangular wall
Patent
1986-10-20
1987-07-28
Little, Willis
Envelopes, wrappers, and paperboard boxes
Paperboard box
Including a polygonal, nonrectangular wall
229 23R, 229 41C, B65D 536
Patent
active
046827269
ABSTRACT:
A collapsible, self-erecting pentagonal dodecahedron hollow structure formed from two integral blanks of paperboard, each of which is cut and scored to form a central pentagonal having integrally formed therewith five other generally pentagonal walls which are affixed to the respective ones of the edges of the central pentagonal by a score line. Each of the generally pentagonal walls has a triangular flap which is hingedly affixed by means of a score line along one of its edges so as to be disposed between adjacent ones of the pentagonal walls. A slide member is affixed to each of the triangular flaps and is disposed to extend beneath the adjacent pentagonal wall. Each of the pentagonal walls of one of the blanks has a foldable attachment flap affixed by a score line to the outwardmost edge thereof. Each of the pentagonal walls of the other one of the blanks has a foldable hook flap affixed by a score line to the outwardmost edge thereof. An elastic means such as a rubber band engages a hook on each of the foldable hook flaps. The two blanks are affixed together atop one another by means of rivets or the like such as to permit rotation of the pentagonal walls with respect to one another. The hollow structure is collapsed in this configuration, but when released will automatically self-erect to form the hollow pentagonal dodecahedron.
REFERENCES:
patent: 1649088 (1927-11-01), Tinsley
patent: 1720146 (1929-07-01), Reese
patent: 2320665 (1943-06-01), Shearer
patent: 2706592 (1955-04-01), Schaller
patent: 2751138 (1956-06-01), Laver
patent: 3204849 (1965-09-01), Vinney
patent: 3666607 (1972-05-01), Weissman
patent: 4607785 (1986-08-01), Croley
Demeur Basil E.
Knechtel Robert E.
Little Willis
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