ORGANE DE TRANSMISSION A INTERPOSER ENTRE UN ORGANE MENANT ET UN ORGANE MENE, EN PARTICULIER OUTIL VIBRANT

IL S'AGIT D'UN ORGANE DE TRANSMISSION DU GENRE COMPORTANT UN BOITIER CREUX 13 ET UN NOYAU 14 MONTE FLOTTANT DANS CELUI-CI, LEDIT NOYAU 14 COMPORTANT AU MOINS DEUX BRAS 16 QUI DEBOUCHENT L'UN ET L'AUTRE A L'EXTERIEUR DU BOITIER 13 ET A CHACUN DESQUELS UN QUELCONQUE ORGANE MENANT OU MENE EST SUSCEPTIBLE D'ETRE ASSUJETTI.SUIVANT L'INVENTION, LES BRAS 16 DU NOYAU 14 FONT UN ANGLE ENTRE EUX, LEDIT NOYAU 14 AYANT PAR EXEMPLE QUATRE BRAS 16 EN CROIX.APPLICATION AUX ORGANES DE TRANSMISSION A INTERPOSER ENTRE UN ORGANE MENANT ET UN ORGANE MENE, NOTAMMENT LORSQUE L'ORGANE MENANT EST UN GENERATEUR DE VIBRATIONS ET L'ORGANE MENE UN OUTIL. A transmission device comprises a hollow casing and a core member disposed in the casing. The core member is free to move in the casing in all directions. It has at least two arms to each of which a driving member or a driven member may be connected. The arms of the core member have a non-aligned angular relationship to one another. The casing incorporates an internal housing whose configuration is a homothetic replica of that of the core member. There is clearance between the core member and the housing in all directions. At least part of each wall of the housing facing one of the arms of the core member is formed with at least one hole or recess which, by means of a network of internal conduits in the casing, can communicate with a source of pressurized supporting fluid. The transmission device is applicable to machine tools using ultrasonic, spark erosion and electrochemical machining processes.