Flexible linking of the external ring gears of epicyclic gear trains

The particularity of this construction consists in using the same internal teeth of the ring gear 12, 14 in order to engage both with the planetary gears 7a, 7b and to use it as a coupling channel in the flexible link 15, 17 with the casing 1. This system, contrary to that which is usually manufactured in the arrangements of flexible fixing of external ring gears, only requires the manufacture of one single size of tooth. Application especially to large dimension gears. LA PARTICULARITE DE CETTE CONSTRUCTION CONSISTE A SE SERVIR DE LA MEME DENTURE INTERIEURE DE LA COURONNE12, 14 POUR ENGRENER A LA FOIS AVEC LES PLANETAIRES7A, 7B ET DE L'UTILISER COMME CANNELURE D'ACCOUPLEMENT DANS LA LIAISON SOUPLE15, 17 AVEC LE CARTER1. CE SYSTEME, CONTRAIREMENT A CE QUI EST GENERALEMENT REALISE DANS LES DISPOSITIONS DE FIXATION SOUPLE DES COURONNES EXTERIEURES, NE NECESSITE LA REALISATION QUE D'UN SEUL TAILLAGE DE DENTURE.APPLICATION NOTAMMENT AUX ENGRENAGES DE GRANDE DIMENSION.