Patent Number: 8,869,945

Title: Supplemental elevator safety system

Abstract: The invention relates to a safety arrangement of an elevator system and to a method for ensuring safety in an elevator system. The safety arrangement comprises at least one mechanical stopping appliance and the control of the safety arrangement comprises at least one limit value that sets the speed, deceleration or permitted vertical distance from the door zone of the elevator car. In the method for ensuring safety in an elevator system at least one mechanical stopping appliance is fitted to the safety arrangement of the elevator system and at least one limit value that sets the speed, deceleration or permitted vertical distance from the door zone of the elevator car is set for the control of the safety arrangement.

Inventors: Harkonen; Ari (Riihimaki, FI), Korvenranta; Sakari (Hyvinkaa, FI), Kattainen; Ari (Hyvinkaa, FI), Syrman; Timo (Hyvinkaa, FI), Ahrnberg; Hannu (Hyvinkaa, FI), Jokinen; Risto (Hyvinkaa, FI)

Assignee: Kone Corporation

International Classification: B66B 1/40 (20060101); B66B 1/32 (20060101); B66B 1/50 (20060101)

Expiration Date: 2018-10-28 0:00:00