Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1982-09-09
1984-12-25
Peters, Jr., Joseph F.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
188 722, 188 728, B62M 2702, F16D 5516
Patent
active
044898010
ABSTRACT:
A compact, highly efficient braking assembly for a snowmobile utilizes first and second plates, one of which swings relative to the other to actuate a wedging device therebetween when a brake control lever is actuated by an operator. The wedging device includes cooperating, adjacent, tapered slots on the confronting faces of the first and second plates and which confine a rolling spacer ball therebetween to urge the plates apart as the ball is forced from deep regions of the slots to more shallow regions during swinging of the moving plate. As one plate moves away from the other along a helical path, a pair of brake pads carried by the moving plate engages one side of a brake disc, forces the disc against a stationary pair of brake pads, cooperates with the stationary brake pads to grip the rotating brake disc therebetween and utilizes brake disc momentum to assist movement of the swinging plate toward braking position.
REFERENCES:
patent: 3698497 (1972-10-01), Bombardier
patent: 3952843 (1976-04-01), Campbell et al.
patent: 4016957 (1977-04-01), Osujo et al.
patent: 4362524 (1982-12-01), Lob et al.
Fugate D. Lynn
Peters Jr. Joseph F.
Yamaha Motor Corporation, U.S.A.
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