192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1994-03-07
1996-08-06
Pitts, Andrea L.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 4A, F16D 6702
Patent
active
055425135
ABSTRACT:
An automatic parking brake system for a vehicle with an electric starter motor with a conventional solenoid and also a modified contactor assembly that is used to selectively activate the motor and set the wheel brake of a vehicle. An additional solenoid is used to activate the same modified contactor assembly that activates the starter motor and the rotational movement is transmitted through a gear assembly to a reciprocating teethed bar that in turn causes a linear pulling force to set the brake assembly typically found in one or more of a vehicle's wheels. The system is selectively ignited by a switch that could be part of the ignition switch and it also includes a tension detector that interrupts the pulling action on the wheel brake after if reaches a predetermined maximum, typically when the wheel brake is set. Other switches in series are used to condition the operation of the pulling force to the occurrence or absence of certain conditions to ensure the proper functioning of the system, and visual or audio alarms are included to alert a user to such malfunctions. A spring assembly is adapted to return the teethed bar to its original position when the additional solenoid is deactivated.
REFERENCES:
patent: 3455418 (1969-07-01), Littman
patent: 3539038 (1970-10-01), Taber
patent: 4224832 (1980-09-01), Prohaska
patent: 4561527 (1985-12-01), Nakamoto
patent: 4629043 (1986-12-01), Matsuo
patent: 5004077 (1991-04-01), Carlson
patent: 5067366 (1991-11-01), Gandiglio
patent: 5119912 (1992-06-01), Martin
patent: 5131288 (1992-07-01), Barlas
patent: 5178237 (1993-01-01), Ursel
patent: 5180038 (1993-01-01), Arnold
Pitts Andrea L.
Sanchelima J.
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