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US 10,479,648 B2Granted
Automatic elevator inspection systems and methods
AssigneeOtis Elevator Company
InventorsSandeep Sudi, Daniel M. Tripp, Sr.
Life of this patent
Estimating the term…
Abstract
Elevator systems and methods of operating elevator systems having an elevator car within an elevator shaft, a counterweight within the elevator shaft and operably connected to the elevator car, an indicator element located in a pit of the elevator shaft, and an inspection system including a detector located on the elevator car and arranged to detect a location of the counterweight in an inspection region within the pit based a relative position between the counterweight and the indicator element.
Claims18
An elevator system comprising:
- an elevator car within an elevator shaft;
- a counterweight within the elevator shaft and operably connected to the elevator car;
- an indicator element located in a pit of the elevator shaft;
- and
- an inspection system comprising:
- a detector located on the elevator car and arranged to detect a location of the counterweight in an inspection region within the pit based a relative position between the counterweight and the indicator element;
- and
- a movable frame having a marker that is movable in response to interaction with the counterweight, the marker located proximate the indicator element.
5 more elements
A method for inspecting a counterweight of an elevator system comprising:
- moving a counterweight to a lowest position within an elevator shaft;
- observing an inspection region using a counterweight inspection system having a detector located on an exterior of an elevator car, the inspection region being a region including an indicator element;
- determining if an error exists with the counterweight based on the indicator element within the inspection region;
- and
- generating an error notification when an error in the counterweight is determined,
- wherein the inspection system includes a movable frame having a marker positioned relative to the indicator element, wherein the movable frame comprises a first side and a second side, wherein the inspection system comprises a contact surface on the first side, wherein the contact surface is arranged to interact with the counterweight and the marker is located on the second side.
3 more elements
Dependencies are inferred from the claim text.