Traction sleeve changing method e.g. for lift elevator, involves determining position of sleeve and impressing power surge on sleeve which destroys sleeve and fragments of sleeve are destroyed and removed

摘要

The method involves determining the position of the sleeve and impressing a power surge on the sleeve. The power surge destroys the sleeve. Fragments of the sleeve are destroyed and removed and where appropriate keeping the remaining pieces. The power surge des not influence any other component in the system. An independent claim is included for a traction sleeve with a hub.