公开(公告)号：JPH11209023A

公开(公告)日：1999-08-03

申请号：JP31599598

申请日：1998-11-06

Applicant: OTIS ELEVATOR CO

Inventor： THOMPSON MARK S ,  RAIMOND ZATORUSKII ,  BEALS JAMES T ,  MCCLUSKEY PHILIP H ,  MCKEE DAVID W ,  LANG MICHAEL C ,  LUSSIER FRED J ,  NGUYEN DAT T ,  BENNETT PAUL

IPC: B66B5/22 ,  F16D63/00 ,  F16D65/14 ,  F16D66/00 ,  F16D69/00 ,  F16D69/02 ,  F16D69/04

Abstract: PROBLEM TO BE SOLVED: To provide a reliable elevator safety braking device with a high coefficient of friction and low abrasion for use in a high speed-high load elevator. SOLUTION: An elevator safety braking device comprises a base, a frictional surface arranged thereon which is in contact with an elevator guide rail, and a brake shoe 26 equipped with the base At least one part of the frictional surface includes a coating, which is attained by spraying nickel-chromium alloy particles and tungsten carbide particles onto the base, and fusing the sprayed mixed material.