B - Operations – Transporting – 64 – C
Patent
B - Operations, Transporting
64
C
B64C 27/46 (2006.01) B29D 99/00 (2010.01) B29B 15/08 (2006.01) B29C 43/18 (2006.01) B29C 70/08 (2006.01) B29C 70/34 (2006.01) B64C 11/22 (2006.01) B64C 27/473 (2006.01) B29D 31/00 (2006.01)
Patent
CA 2111889
"BLADE MADE OF THERMOPLASTIC COMPOSITE, IN PARTICULAR FOR DUCTED TAIL ROTOR OF A HELICOPTER, AND ITS METHOD OF MANUFACTURE" EUROCOPTER FRANCE Invention of : COFFY René ABSTRACT The blade has its lower-surface and upper-surface skins of its shell, its front and rear filling bodies and its spar made of a composite material having the same thermoplastic matrix, preferably made of PEEK, reinforced preferably with carbon fibres. The spar is extended outside the shell by an integrated rooting part with linkage attachment, in a loop or laminate, in the same thermoplastic composite. The method consists in assembling, by melting, under pressure, all the thermoplastic composite components of the blade, in a single step after manufacturing these components in the form of prefabricated elementary pieces. Figure 27
Eurocopter France
Goudreau Gage Dubuc
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