Abstract An educational block is formed by providing a light weight enclosed carton into which a reinforcing filler is inserted to give the block the necessary rigidity. The filler is formed by two blanks intersecting along an axis formed by the interfitting slots in the blanks, the filler presenting a cross-section of cruciform shape. The length of the filler is equal to the length of the carton. Each arm of the blank is folded along a score line extending from one end of the filler to the other end and parallel to the intersecting axis to form an end panel. The width of each end panel is so dimensioned that the panel extends from its score line to the score line of the adjacent arm when in folded position. The final cross-sectional shape of the assembled and folded blanks is that of a quadrilateral with its two intersecting diagonals. The end panels are dimensioned to be coextensive with the respective sides of the carton, whereby the sides of the carton maintain the folded portions of the blanks in their reinforcing position to form the filler formation which gives rigidity to the carton and block structure.
Inventors
👤 Andrew M Abrams
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-07 18:31
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
A reinforced block having a carton formed of paper material and a reinforcing filler insertable therein to give the desired rigidity to the block, said filler comprising two intersecting corrugated paper blanks, each blank comprising a flat sheet with beveled corners having horizontal edges and vertical edges, two spaced horizontal score lines with V-notches at the ends, said score lines formed across the blank and spaced from said horizontal edges to divide said blank into a center diagonal panel and two end panels, a horizontal slot in said diagonal panel intermediate said two score lines at the center of each blank and equally spaced from the score lines and extending from a vertical edge to about midway of the blank, said horizontal edges, the score lines and the slot in each blank being parallel to each other, said end panels foldable along their score lines relative to the diagonal panel to give the folded blank a Zshaped cross-section with the end panels forming the top and the bottom of the Z, ad the end panels being dimensioned to substantially co-extend with the respective sides of the carton, the filler being formed by mutually interfitting the two blanks along their slots to form their intersecting relationship, the assembled filler having a cross-section wherein the folded blanks form a quadrilateral with diagonals therein.
Claim 2
Dependent Claim
221 words
A reinforced block having a carton formed of paper material and a reinforcing filler insertable therein to give the desired rigidity to the block, said filler comprising two intersecting corrugated paper blanks, each blank comprising a flat sheet with beveled corners having horizontal edges and vertical edges, two spaced horizontal score lines with V-notches at the ends, said score lines formed across the blank and spaced from said horizontal edges to divide said blank into a center diagonal panel and two end panels, a horizontal slot in said diagonal panel intermediate said two score lines at the center of each blank and equally spaced from the score lines and extending from a vertical edge to about midway of the blank, said horizontal edges, the score lines and the slot in each blank being parallel to each other, said end panels foldable along their score lines relative to the diagonal panel to give the folded blank a Zshaped cross-section with the end panels forming the top and the bottom of the Z, ad the end panels being dimensioned to substantially co-extend with the respective sides of the carton, the filler being formed by mutually interfitting the two blanks along their slots to form their intersecting relationship, the assembled filler having a cross-section wherein the folded blanks form a quadrilateral with diagonals therein.