公开(公告)号：MY123947A

公开(公告)日：2006-06-30

申请号：MYPI9804543

申请日：1998-10-05

Applicant: OTIS ELEVATOR CO

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

IPC: F16D69/02 ,  B66B5/22 ,  C22C27/04 ,  F16D69/00

Abstract: AN ELEVATOR SAFETY BRAKE FOR STOPPING AN ELEVATOR CAR IS PROVIDED WITH A BRAKE SHOE (25) HAVING A MOLYBDENUM ALLOY FRICTION SURFACE (32) FOR CONTACTING AN ELEVATOR GUIDE RAIL SURFACE (16) TO PROVIDE A STOPPING FORCE. THE MOLYBDENUM ALLOY CONTAINS 99.4 WEIGHT PERCENT MOLYBDENUM, 0.5 WEIGHT PERCENT TITANIUM AND 0.1 WEIGHT PERCENT ZIRCONIUM. THE FRICTION SURFACE (32) OF THE BRAKE FORMED FROM THE ALLOY EXHIBITS A CONSISTENT HIGH FRICTION AND LOW WEAR SUITABLY ACCOMMODATING HIGH SPEED, HIGH LOAD ELEVATORS INSTALLED IN VERY TALL BUILDINGS.(FIGURE 1)

公开(公告)号：HK1020036A1

公开(公告)日：2000-03-10

申请号：HK99105305

申请日：1999-11-17

Applicant: OTIS ELEVATOR CO

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

IPC: B66B5/22 ,  C22C27/04 ,  F16D69/00 ,  F16D69/02 ,  B66B ,  F16D

Abstract: An elevator safety brake for stopping an elevator car is provided with a brake shoe (25) having a molybdenum alloy friction surface (32) for contacting an elevator guide rail surface (16) to provide a stopping force. The molybdenum alloy contains 99.4 weight percent molybdenum, 0.5 weight percent titanium and 0.1 weight percent zirconium. The friction surface of the brake formed from the alloy exhibits a consistent high friction and low wear suitably accommodating high speed, high load elevators installed in very tall buildings.