Transporting device
First Claim
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1. A transporting device comprising at least one autonomous workpiece carrier provided with an electric drive means connected to a drive control means;
- a path system provided for guiding said carrier;
said drive control means including signal producing means provided for producing signals corresponding to operational parameters of said carrier and signal processing means provided for comparing an actual time sequence of the signals produced by said signal producing means with a predetermined time sequence stored in said drive control means;
whereby, said drive control means has a function of stopping said vehicle in the event of a deviation of said actual time sequence from said predetermined time sequence.
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Abstract
A transporting device has at least one autonomous workpiece carrier provided with an electric device and a drive control, and a path system provided with a plurality of stations. The workpiece carrier is provided with a unit for determining the operational parameter of the workpiece carrier and reacting to the deviation of the operational parameter from a predetermined value.
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Citations
14 Claims
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1. A transporting device comprising at least one autonomous workpiece carrier provided with an electric drive means connected to a drive control means;
- a path system provided for guiding said carrier;
said drive control means including signal producing means provided for producing signals corresponding to operational parameters of said carrier and signal processing means provided for comparing an actual time sequence of the signals produced by said signal producing means with a predetermined time sequence stored in said drive control means;
whereby, said drive control means has a function of stopping said vehicle in the event of a deviation of said actual time sequence from said predetermined time sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a path system provided for guiding said carrier;
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8. A transporting device comprising at least one autonomous workpiece carrier provided with an electric drive means connected to a drive control means;
- a path system provided for guiding said carrier;
the drive control means including a pressure responsive switch means in the form of a rocker arranged in front of said carrier;
said rocker having an initial position, a first switching position and a second switching position;
whereby, in response to a regular impact to the front of the carrier, said rocker is moved from the initial position to the first switching position;
in response to an irregular impact harder than said regular impact, said rocker is moved from the initial position passing the first switching position to the second switching position;
the drive control means has a function of temporary stopping the carrier in response to the rocker moved to the first switching position and permanent stopping the carrier only in response to the rocker moved to the second switching position. - View Dependent Claims (9, 10)
- a path system provided for guiding said carrier;
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11. A transporting device comprising at least one autonomous workpiece carrier provided with an electric drive means connected to a drive control means;
- a path system provided for guiding said carrier;
said drive control means including stopping means for temporary stopping the carrier upon a regular impact and for permanent stopping the carrier when an irregular impact;
said stopping means including a shock sensor means arranged in said carrier for producing a signal upon said irregular impact;
whereby said drive control means has a function of permanent stopping the carrier in response to said signal of said shock sensor means.
- a path system provided for guiding said carrier;
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12. A transporting device comprising at least one autonomous workpiece carrier provided with an electric drive means connected to a drive control means and a battery;
- a path system provided for guiding said carrier;
said drive control means including a power consumption monitoring means for comparing the rate of energy withdrawn from said battery by said electric drive means with a predetermined value;
whereby said drive control means has a function of stopping said carrier in response to a signal of said power consumption monitoring means when the rate of energy withdrawn from said battery exceeds the predetermined value. - View Dependent Claims (13, 14)
- a path system provided for guiding said carrier;
Specification