Safety device for vehicle seat with vibrator

Details Safety device for vehicle seat with vibrator Safety device for vehicle seat with vibrator

1982-03-18

1984-08-14

Bertsch, Richard A.

Motor vehicles

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

128 33, 180273, 180277, 297284, A47C 100, B60K 2800

Patent

active

044651589

ABSTRACT:
A vehicle driver's seat is equipped with an electromagnetically operated vibrator arranged in its back-rest to be activated by energization of an electric control circuit for periodically supplying an electric current to the vibrator from a vehicle battery. A safety device for the driver's seat comprises a parking brake switch arranged between the electric control circuit and the battery to be opened during the inoperative condition of a parking brake of the vehicle and to be closed in response to operation of the parking brake, and an additional control circuit for energizing the electric control circuit in response to closing of the switch to activate the vibrator during arrest of the vehicle and for deenergizing the electric control circuit in response to opening of the switch to deactivate the vibrator during movement of the vehicle.

REFERENCES:
patent: 4051915 (1977-10-01), Behrens
patent: 4136685 (1979-01-01), Ramey
patent: 4148522 (1979-04-01), Sakurada et al.
patent: 4162807 (1979-07-01), Yoshimura
patent: 4228793 (1980-10-01), Ramey

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