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US 11,001,474 B2Granted
Wear detection of elevator belt
AssigneeOtis Elevator Company
InventorsMark R. Gurvich, Georgios S. Zafiris
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Abstract
A belt includes one or more tension members extending along a length of the belt, a jacket at least partially enclosing the plurality of tension members, and one or more layers of one or more of a fluorescent, absorbing, or reflecting material located in the belt such that when subjected to a light source, an indication of fluorescence or absorbance or reflection of the one or more layers of fluorescent or absorbent or reflective materials is indicative of a wear condition of the belt.
Claims20
A belt, comprising:
- one or more tension members extending along a length of the belt;
- a jacket at least partially enclosing the plurality of tension members;
- and
- one or more layers of one or more of a fluorescent material disposed in the belt such that when subjected to a light source, an indication of fluorescence of the one or more layers of fluorescent materials is indicative of a wear condition of the belt.
1 more element
A method of wear detection of a belt comprising:
- emitting light from a light emitter toward a belt of an elevator system;
- one or more materials of the elevator belt;
- and
- detecting a pattern of the fluorescence of the elevator belt, wherein the pattern of fluorescence is indicative of a wear pattern of the belt.
1 more element
An elevator system, comprising:
- a hoistway;
- an elevator car disposed in the hoistway;
- an elevator belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway, the elevator belt comprising:
- one or more tension members extending along a length of the belt;
- a jacket at least partially enclosing the plurality of tension members;
- and
- one or more layers of fluorescent materials disposed in the at least one belt;
- and
- a wear detection system disposed in the hoistway, comprising:
- a light emitter to direct light at the elevator belt;
- and
- a detector configured to detect a pattern of the fluorescence, of the elevator belt, wherein the pattern of fluorescence is indicative of a wear pattern of the belt.
9 more elements
Dependencies are inferred from the claim text.