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Machine translation
1. (WO1980002408) BLADE FOLD RESTRAINT SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002408    International Application No.:    PCT/US1980/000399
Publication Date: 13.11.1980 International Filing Date: 09.04.1980
IPC:
B64C 27/50 (2006.01)
Applicants:
Inventors:
Priority Data:
35364 02.05.1979 US
Title (EN) BLADE FOLD RESTRAINT SYSTEM
(FR) SYSTEME DE RETENUE DE PLIAGE DE PALES
Abstract: front page image
(EN)In a fully articulated helicopter rotor head, utilizing an elastomeric bearing (36) to support each rotor blade (2) and react centrifugal flight loads, a blade restraint (52), effective in three axes is provided for use during blade folding for aircraft stowage purposes (Fig. 1). The restraint allows the blade to be folded through a predetermined fold plane, and held there while preventing or minimizing deflection of the elastomeric bearing (36).
(FR)Dans une tete d"un rotor d"helicoptere entierement articule, utilisant un palier elastomere pour supporter chaque pale de rotor et reagir aux charges centrifuges en vol, un systeme de retenue des pales, effectif suivant trois axes est prevu pour etre utilise pendant le repliage des pales en vue du stockage de l"appareil. Le systeme de retenue permet aux pales d"etre repliees suivant un plan de repliage predetermine, et les maintient ainsi tout en empechant ou reduisant au minimum la deflexion du palier elastomere.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)