Patent ID: 7784880

Claim:
A braking system for a floor conveyor, which features at least one travel motor ( 14 , 16 ) for at least one driven wheel ( 10 , 12 ), an electric steering control ( 22 ) for at least one steered wheel ( 50 ), a service brake with a braking transmitter generating a braking signal and an electro-magnetically releasable spring brake ( 18 , 20 ) as an emergency stop brake, which is actuable when an error signal is generated in the steering control ( 22 ) or a braking signal, which further features a superordinated vehicle control ( 36 ) of the floor conveyor and a battery ( 32 ) for supplying power to an individual electrical component, wherein the steering control ( 22 ) actuates a first switch ( 28 ) at an error signal, which cuts off an electric connection between the battery ( 32 ) and the emergency stop brake, characterized in that an additional switch ( 40 , 42 ) is connected in series with the first switch ( 28 ) and is actuable by a PWM actuator of the vehicle control ( 36 ), and that a control line ( 44 ) is connected between the steering control ( 22 ) and the vehicle control ( 36 ), such that both switches ( 28 , 40 , 42 ) are switched according to a clock of the PWM actuator when the error signal or the braking signal occurs.