Patent ID: 6631789
Filing Date: 2003-10-14
Classification: B66B

Abstract:
A method for braking a traction sheave elevator comprising a drive machine including a traction sheave, hoisting ropes driven by the traction sheave and an elevator car and counterweight suspended on the hoisting ropes, the method comprising the steps of:providing a first braking device adjacent the drive machine and operable on the traction sheave; providing a second braking device separate from the first braking device, the second braking device always being out of contact with the traction sheave; starting braking of the elevator by the second braking device during an emergency stop function; and starting braking of the elevator by the first braking device after the starting of braking by the second braking device during an emergency stop function, said second braking device being selectively closed so as to be operable as a normal brake.