Method of making an ELEVATOR LOAD BEARING MEMBER HAVING A JACKET WITH AT LEAST ONE ROUGH EXTERIOR SURFACE

An elevator load bearing member assembly includes at least one roughened surface (46) on a polyurethane jacket (44) wherein the polyurethane jacket comprises an amide-rich layer on at least one surface. In one example, mechanical roughening is used to roughen the surface (46) after the jacket has be...

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Main Authors THOMPSON, Mark, S, PHILLIPS, Richard, JOTTI, Pierangelo, LOGAN, Douglas, E, SHERRICK, Kathryn R, MELLO, Ary, O, WESSON, John, P, SCHREINER, Peter, PERRON, William, C, VERONESI, William, A, PITTS, John, O'DONNELL, Hugh, J
Format Patent
LanguageEnglish
French
German
Published 24.01.2018
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
DRESSING OR CONDITIONING OF ABRADING SURFACES
FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
GRINDING
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
PERFORMING OPERATIONS
POLISHING
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:An elevator load bearing member assembly includes at least one roughened surface (46) on a polyurethane jacket (44) wherein the polyurethane jacket comprises an amide-rich layer on at least one surface. In one example, mechanical roughening is used to roughen the surface (46) after the jacket has been extruded onto tension members (42). Other examples include chemically roughening the jacket surface. The roughened jacket surface improves friction characteristics of a load bearing member assembly.
Bibliography:Application Number: EP20040821853