Hoistway intrusion detection
First Claim
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1. An elevator system including an elevator shaft and a car, which is movable inside the elevator shaft, and a safety installation, which is designed in such a way that it can take the elevator out of service in a dangerous situation, said safety installation comprising:
- a shaft monitoring device for generating a signal; and
a safety control system connected to the shaft monitoring device wherein the safety control system, is responsive to the signal for the detection of a dangerous situation when the car is at a halt and for determining the functional status of the shaft monitoring device while the car is in motion.
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Accused Products
Abstract
Elevator, exhibiting an elevator shaft (34) and a car (32) which is movably provided inside the elevator shaft (34), and a safety installation (2), which is designed in such a way that it can take the elevator out of service in a dangerous situation, characterized by the fact that the safety installation (2) is equipped with a shaft monitoring device.
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Citations
12 Claims
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1. An elevator system including an elevator shaft and a car, which is movable inside the elevator shaft, and a safety installation, which is designed in such a way that it can take the elevator out of service in a dangerous situation, said safety installation comprising:
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a shaft monitoring device for generating a signal; and
a safety control system connected to the shaft monitoring device wherein the safety control system, is responsive to the signal for the detection of a dangerous situation when the car is at a halt and for determining the functional status of the shaft monitoring device while the car is in motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Method for retrofitting a shaft monitoring device in an existing elevator with a safety installation which is designed in such a way that it can take the elevator out of service in a dangerous situation which is recognized as such by the safety installation comprising the steps of:
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providing a shaft monitoring device;
mounting the shaft monitoring device in the elevator shaft;
generating a signal by the monitoring device upon detection of movement in the elevator shaft;
connecting the shaft monitoring device to the safety installation;
monitoring the signal generated by the shaft monitoring device with the safety installation while the elevator is at a halt to take the elevator out of service in response to the signal; and
performing a function check of the safety installation while the elevator is moving. - View Dependent Claims (11, 12)
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Specification