Self-erecting hollow structure

Details Self-erecting hollow structure Self-erecting hollow structure

1985-05-22

1986-10-28

Foss, J. Franklin

Supports

Stand

Of sheet material

248152, 206805, 206 4527, B65D 508, B65D 536, B65D 552

Patent

active

046194266

ABSTRACT:
A collapsible, self-erecting hollow structure which is formed from an integral blank of paperboard which is cut and scored to form a plurality of side and end walls which when erected form the hollow structure. Each of the plurality of side and end walls are hingedly connected along one edge thereof with at least one other wall. The hollow structure also has at least two flaps, each of which is hingedly connected along one edge thereof with at least one of the plurality of side walls. These flaps each is cut and scored to form an attachment and further is folded and affixed to one of the plurality of end walls on the side thereof which is interior of the erected hollow structure. An elastic means such as a rubber band is secured under tension to the attachments and normally pulls the two end walls to which the flaps are hingedly connected toward one another and thereby erecting said hollow structure. The hollow structure may also have affixed to it a copy extender. In this case, one of the end walls has a slot formed in it, and a hook portion is formed on the copy extender and proportioned to extend through the slot in the end wall. The elastic means is secured under tension to one of the attachments and to the hook portion. When the hollow structure is erected, the copy extender is positioned substantially perpendicular to the end wall by the action of the elastic means. Alternatively, the copy extender can be integrally formed with the hollow structure such that it is simultaneously erected with the erection of said hollow structure.

REFERENCES:
patent: 1269621 (1918-06-01), Lewinson
patent: 2851804 (1958-09-01), Roach
patent: 3300166 (1967-01-01), Wojciechowski
patent: 4285150 (1981-08-01), Richardson et al.
patent: 4335830 (1982-06-01), Garganese

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