Motor vehicles – With means for promoting safety of vehicle – its occupant or... – Responsive to sensing of acceleration – deceleration – or tilt...
Patent
1980-01-09
1981-07-14
Love, John J.
Motor vehicles
With means for promoting safety of vehicle, its occupant or...
Responsive to sensing of acceleration, deceleration, or tilt...
74535, 74539, 74542, 188111, B60R 2700
Patent
active
042781434
ABSTRACT:
Parking brake release apparatus for a vehicle of the type which has a frame, wheels, a parking brake for at least one of its wheels, a parking brake pedal pivotally mounted to the frame to apply the parking brake, the pedal having a braking and a brake release condition, a brake return opposing braking movement of the parking brake pedal, and an engine to provide driving power to at least one of the wheels. The engine when operating has a range of possible rotational frequencies (rpm). The release apparatus itself comprises a releasable lock adapted to lock the parking brake pedal in its braking condition. A lock release is adapted selectively to release the lock means and to prevent the lock means from locking. Engine frequency responsive means is connected to the lock release and adapted to permit the lock to become and remain locked at frequencies below a pre-selected frequency, and to release the lock if locked, and to prevent it from locking if unlocked, at frequencies at and above said pre-selected frequency. In the preferred embodiment, the engine frequency responsive means is a throw-weight governor type device.
REFERENCES:
patent: 837043 (1906-11-01), Discher
patent: 3997019 (1976-12-01), Inoue
Love John J.
Mon Donald D.
Underwood D. W.
Yamaha Hatsudoki Kabushiki Kaisha
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