The invention provides cardboard-based structures comprising two or more, generally elongated elements angled with respect to one another and being cut out of a multi-layered cardboard-based piece that comprises at least two layers of a single cardboard sheet folded about a longitudinal reinforcing member. The invention further provides frames, preferably human-powered vehicle frames, constructed from structures of the invention, as well as methods for producing structures of the invention.
CARDBOARD-BASED STRUCTURE
2016-07-07
Patent
Elektronische Ressource
Englisch
IPC: | B62K Fahrräder , CYCLES / B31D MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C , Herstellen von Gegenständen aus Papier, Pappe oder aus Material, das in gleicher Weise wie Papier bearbeitet wird, soweit nicht in den Unterklassen B31B oder B31C vorgesehen |