SHEET MATERIAL HAVING A CONCAVE-CONVEX PART, AND A VEHICLE PANEL AND LAMINATED STRUCTURE USING THE SAME
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United States of America Patent
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Issued Date -
May 2, 2013
app pub date -
Sep 2, 2010
filing date -
Jul 12, 2010
priority date (Note) -
Abandoned
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Abstract
A sheet material (1) has a concave-convex part (20). Using first, second and intermediate reference planes (K1, K2, K3) as a reference system, a virtual lattice longitudinally and laterally divides a unit area (23) disposed in the intermediate reference plane (K3) into n equal parts that are categorized as first boxes (231) and second boxes (232). A first reference area (213) contains a plurality of the first boxes (231), and a second reference area (223) contains a plurality of the second boxes (232). First areas (21) respectively protrude from the first reference areas (213) toward the first reference plane (K1). Second areas (22) respectively protrude from the second reference areas (223) toward the second reference plane (K2). Each of the first areas comprises a first top surface (211) and first side surfaces (212). Each of the second areas comprises a second top surface (221) and second side surfaces (222).
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