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US 8,985,281 B2Granted
Elevator shaft position measurement apparatus
AssigneeCedes AG
InventorsBeat De Coi, Steven Freedman, Jan Giger, Tobias Leutenegger
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AssigneeCedes AG
InventorsBeat De Coi, Steven Freedman, Jan Giger, Tobias Leutenegger
Estimating the term…
An elevator installation with an elevator cab in an elevator shaft and a measurement tape for determining the position of the elevator cab within the elevator shaft, which measurement tape is arranged vertically in the elevator shaft and has a code along the measurement tape, and at least one marking element which is attached in the elevator shaft and has a reference marking, and a sensor apparatus which is attached to the elevator cab and includes an illumination source and a sensor, which form a detection field for detecting the measurement tape and with an evaluation apparatus. The reference marking is arranged such that it can be captured by the detection field and the sensor apparatus is also provided for detecting the reference marking and the evaluation apparatus aligns the position determined by the measurement tape with the reference marking.
An elevator installation with an elevator cab in an elevator shaft and with a measurement tape for determining the position of the elevator cab within the elevator shaft, which measurement tape is arranged vertically in the elevator shaft and has a code along the measurement tape, and with at least one marking element which is attached in the elevator shaft and has a reference marking, and with a sensor apparatus which is attached to the elevator cab and comprises an illumination source and a sensor, which form a detection field for detecting the measurement tape and with an evaluation apparatus
A marking device for marking and/or encoding the position of an elevator cab within an elevator shaft and for the attachment within the elevator shaft, more particularly the shaft wall, with a measurement tape for the vertical arrangement along the elevator shaft, which measurement tape has a code for determining the position along the measurement tape, and with at least one guide element for mounting the measurement tape in a longitudinally moveable manner within the elevator shaft, more particularly on the shaft wall,
A guide element for mounting a measurement tape in a longitudinally moveable manner within an elevator shaft, more particularly on the shaft wall, wherein the guide element has a reference marking for marking a specific position within the elevator shaft.
Dependencies are inferred from the claim text.