Wear detection for elevator system belt
AssigneeOtis Elevator Company
InventorBrad Guilani
Life of this patent
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Abstract
A belt for an elevator system includes a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt, each tension member including a plurality of fibers. A metallized coating layer is applied to at least a portion of an outer surface of at least one tension member of the plurality of tension members. The metallized coating has a coating electrical conductivity greater than a tension member electrical conductivity of the at least one tension member. A jacket material at least partially encapsulates the plurality of tension members and the metallized coating layer.
Claims20
A belt for an elevator system, comprising:
- a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt, each tension member including a plurality of fibers;
- a metallized coating layer applied to at least a portion of an outer surface of at least one tension member of the plurality of tension members, the metallized coating having a coating electrical conductivity greater than a tension member electrical conductivity of the at least one tension member;
- and
- a jacket material at least partially encapsulating the plurality of tension members and the metallized coating layer.
A method of health monitoring of a belt of an elevator system, comprising:
- connecting a health monitoring unit to a belt of an elevator system, the belt including:
- a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt, each tension member including a plurality of fibers;
- a metallized coating layer applied to at least a portion of an outer surface of at least one tension member of the plurality of tension members, the metallized coating having a coating electrical conductivity greater than a tension member electrical conductivity of the at least one tension member;
- and
- a jacket material at least partially encapsulating the plurality of tension members and the metallized coating layer;
- applying a voltage across the metallized coating layer of the at least one tension member via the health monitoring unit;
- and
- evaluating one or more electrical properties at the health monitoring unit, the one or more electrical properties indicative of a health condition of the belt.
An elevator system comprising:
- a hoistway;
- an elevator car disposed in the hoistway;
- and
- a belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway, the belt including:
- a plurality of tension members arranged along a belt width and extending longitudinally along a length of the belt, each tension member including a plurality of fibers;
- a metallized coating layer applied to at least a portion of an outer surface of at least one tension member of the plurality of tension members, the metallized coating having a coating electrical conductivity greater than a tension member electrical conductivity of the at least one tension member;
- and
- a jacket material at least partially encapsulating the plurality of tension members and the metallized coating layer.
Dependencies are inferred from the claim text.