Floor treating machines
First Claim
1. In a floor treating machine comprising laterally spaced drive wheels, separate traction motors drivably connected to the wheels and electronic control means to provide separate trains of pulses to operate the motors conjointly for straight line motion and differentially for steering motion:
- the improvement of means for recording the trains of pulses to the traction motors for recording the path followed by said machine and means for replaying the record to reproduce the trains of pulses whereby the machine will reproduce the original path followed by the machine, and a course correction system coupled between the control means and the motors comprising first sensing devices for sensing the presence of a wall or other physical obstruction in the immediate path of the machine and further sensing devices for sensing the condition of the floor in a predetermined location with respect to the machine, said sensing devices producing overriding signal control to the motors to thereby effect course correction in response to said signals from the sensing devices.
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Accused Products
Abstract
According to the invention there is provided a floor treating machine having laterally spaced drive wheels driven by separate electric traction motors under electronic control so as to be driven by separate train of pulses, comprising means for recording the trains of pulses to the traction motors and means for replaying the record to reproduce the trains of pulses whereby the machine will repeat the operation. When replaying the record it is normally necessary to provide course correction by means of sensing devices for sensing the presence of a wall or other physical obstruction and further sensing devices for sensing the presence of unscrubbed floor, and means for providing overriding control by signals from the sensing devices.
135 Citations
6 Claims
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1. In a floor treating machine comprising laterally spaced drive wheels, separate traction motors drivably connected to the wheels and electronic control means to provide separate trains of pulses to operate the motors conjointly for straight line motion and differentially for steering motion:
- the improvement of means for recording the trains of pulses to the traction motors for recording the path followed by said machine and means for replaying the record to reproduce the trains of pulses whereby the machine will reproduce the original path followed by the machine, and a course correction system coupled between the control means and the motors comprising first sensing devices for sensing the presence of a wall or other physical obstruction in the immediate path of the machine and further sensing devices for sensing the condition of the floor in a predetermined location with respect to the machine, said sensing devices producing overriding signal control to the motors to thereby effect course correction in response to said signals from the sensing devices.
- View Dependent Claims (2, 3, 4, 5, 6)
Specification