Patent ID: 11970368
Assignee: OTIS ELEVATOR COMPANY
Field: Other consumer goods (Other fields)
Classification: CPC B  D  F | IPC B  F

Claim 0:
1. A belt and traction sheave arrangement for an elevator system, comprising:
a traction sheave; and
a belt including:
a single tension member extending along a belt length, the single tension member rectangular in shape and formed from a plurality of fibers disposed in a polymeric matrix material; and
a jacket at least partially encapsulating the tension member, the jacket defining:
a traction surface configured to interface with the traction sheave;
a back surface opposite the traction surface; and

two edge surfaces extending from the traction surface to the back surface at opposing lateral sides of the belt;
wherein the traction surface includes a first convex shaped segment extending from a first edge surface of the two edge surfaces to a second edge surface of the two edge surfaces;
wherein the convex shaped segment of the traction surface is configured to interface with a flat profile surface of the traction sheave, the flat profile surface extending at least from the first edge surface to the second edge surface;
wherein the back surface includes a second convex shaped segment extending from the first edge surface to the second edge surface, the second convex shaped segment having a same profile as the first convex shaped segment;
wherein the convex shaped segment of the traction surface has a variable non-zero curvature from the first edge surface of the two edge surfaces to the second edge surface of the two edge surfaces.