Patent ID: 6280360
Filing Date: 2001-08-28
Classification: F16H

Abstract:
An infinitely variable toroidal drive having:a housing (1);a input shaft (3);first and second input discs (5, 15) defining toroidal inner surfaces disposed coaxially relative to said input shaft;first and second output discs (6, 16) defining toroidal inner surfaces disposed coaxially relative to said input shaft wherein each input disc and an output disc form a pair and the first and second output discs are disposed with mirror symmetry next to each other,a plurality of friction wheels (11, 21) are pivotally disposed between the toroidal surfaces of said pairs of discs for transmitting torque from each input disc to the corresponding output disc;a carrier (12, 22) for each friction wheel (11, 21);a pressure system (4) to urge one of the input discs toward the output discs; anda gear system (8, 9) between output discs and output shaft,wherein on said transmission housing (1) is removably fastened a holding frame (2) which has:an upper frame clamp (28);a lower frame clamp (29); anda cup-shaped bearing support member (7) which connects said upper frame clamp with said lower frame clamp and upon which at least one bearing (24) for said gear system (8) is situated in a manner such that an inner ring of said at least one bearing (24) is stationarily disposed and an outer ring of said at least one bearing (24) rotates together with said gear system (8).