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

Claim 1:
2. An elevator system, comprising:
a hoistway;
an elevator car disposed in and movable along the hoistway;
a traction sheave operably connected to the elevator car to urge movement of the elevator car along the hoistway, the traction sheave including a first profile surface; and
a suspension member routed across the traction sheave and operably connected to the elevator car, the suspension member including:
one or more tension members extending along a belt length; and
a jacket at least partially encapsulating the one or more tension members, 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 second profile surface having a convex curvature extending from a first edge surface of the two edge surfaces to a second edge surface of the two edge surfaces;
wherein the traction surface interfaces with the first profile surface of the traction sheave;
wherein the first profile surface is flat at least from the first edge surface to the second edge surface;
wherein the back surface includes a convex shaped segment extending from the first edge surface to the second edge surface, the convex shaped segment having a same profile as the second profile surface;
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.