Speed change device

Details Speed change device Speed change device

1977-03-22

1979-02-13

Scott, Samuel

Machine element or mechanism

Mechanical movements

Grip units and features

74209, 74212, F16H 1512, F16H 1514

Patent

active

041389000

ABSTRACT:
A speed change device comprises a stack of discs alternating with friction rings, the rings being disposed in a drum with which they are rotatable, the discs being rotatable with an input shaft extending into the drum. The stack is gripped between an abutment connected to the drum and a bell-shaped member fixed to an output shaft extending into the drum. The gripping is ensured by clamping means comprising elements having complementary conjugate surfaces and resilient means disposed between one of said elements and an axial abutment movable with the drum or bell-shaped member. The elements of the clamping means comprise a screw rotatable with the output shaft but axially movable therealong and a nut co-operating with the screw, the nut being rotatable with the drum but axially movable therealong.

REFERENCES:
patent: 1110793 (1914-09-01), Jenkins
patent: 2014921 (1935-09-01), Almen
patent: 3246532 (1966-04-01), Anderson et al.
patent: 3347106 (1967-10-01), Flichy
patent: 3347107 (1967-10-01), Flichy
patent: 3381777 (1968-05-01), Flichy
patent: 4028952 (1977-06-01), Leveque
patent: 4047443 (1977-09-01), Leveque

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