Dismount braking device for a snowmobile

Details Dismount braking device for a snowmobile Dismount braking device for a snowmobile

1995-11-08

1997-07-01

Johnson, Brian L.

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

Responsive to absence or inattention of operator, or...

303 19, 303 89, 188353, B60T 714

Patent

active

056427883

ABSTRACT:
A dismount brake device (1) is tethered by a cable (4) to a snowmobile rider (3). Pulling on the cable (4) displaces a trigger (17) which frees a piston (34). The piston (34) is biased by a main spring (39) to decrease the volume of a chamber (11) containing hydraulic fluid and which is interconnected to the brake line (13). A plunger (36) extends from the head of the piston (34) and seals a port (40) leading to the master cylinder (42). As the volume of the chamber (11) continues to decrease, the pressure in the brake line (13) reaches a value that will activate the brakes and stop rotation of snowmobile track (47). Activation of the brake handle (46) resets the device (1) for further use. An alternate embodiment (48) utilizes a solenoid (50) instead of the tether (4) to physically move a modified trigger (56) when a switch senses that the seat (64) of the snowmobile (2) is unoccupied.

REFERENCES:
patent: 2296132 (1942-09-01), Wiseley
patent: 2362324 (1944-11-01), Stromberg
patent: 2585711 (1952-02-01), Whitney et al.
patent: 2924423 (1960-02-01), Weiser et al.
patent: 3260554 (1966-07-01), Heiland
patent: 3360305 (1967-12-01), Ryskamp
patent: 3684045 (1972-08-01), Samuelson
patent: 3825092 (1974-07-01), Graydon et al.
patent: 3888552 (1975-06-01), Fontaine
patent: 3957131 (1976-05-01), Perkins

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