US 11,993,491 B2
Tension member for elevator system belt
Brad Guilani, Woodstock Valley, CT (US)
Assigned to OTIS ELEVATOR COMPANY, Farmington, CT (US)
Filed by Otis Elevator Company, Farmington, CT (US)
Filed on Apr. 20, 2018, as Appl. No. 15/958,685.
Claims priority of provisional application 62/487,869, filed on Apr. 20, 2017.
Prior Publication US 2018/0305180 A1, Oct. 25, 2018
Int. Cl. B66B 7/06 (2006.01); D07B 1/00 (2006.01); D07B 1/16 (2006.01); F16G 5/06 (2006.01); F16G 5/14 (2006.01)
CPC B66B 7/062 (2013.01) [D07B 1/005 (2013.01); D07B 1/165 (2013.01); F16G 5/06 (2013.01); F16G 5/14 (2013.01); D07B 2201/2083 (2013.01); D07B 2401/2035 (2013.01); D07B 2501/2007 (2013.01)] 10 Claims
OG exemplary drawing
 
1. 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 core member formed from a composite material, the core member including a plurality of first fibers disposed in a matrix material; and
a plurality of second fibers wrapped around the core member defining a cover surrounding the core member to enhance temperature resistance of the tension member; and
a jacket material defining a jacket at least partially encapsulating the plurality of tension members;
wherein the cover is applied directly to an outer perimeter of the core member between the core member and the jacket, the cover distinct from the jacket;
and
wherein the core member has a cross-sectional thickness in the range of 0.5 millimeters to 4 millimeters;
wherein the plurality of second fibers are a plurality of basalt fibers.