US 12,110,212 B2
Safety arrangement, elevator system, and method for preventing derailment of an elevator car at a turning station of an elevator system
Juha-Matti Aitamurto, Helsinki (FI); and Ari Kattainen, Helsinki (FI)
Assigned to KONE CORPORATION, Helsinki (FI)
Filed by KONE Corporation, Helsinki (FI)
Filed on Sep. 15, 2021, as Appl. No. 17/475,884.
Claims priority of application No. 20199828 (EP), filed on Oct. 2, 2020.
Prior Publication US 2022/0106165 A1, Apr. 7, 2022
Int. Cl. B66B 5/28 (2006.01); B66B 1/36 (2006.01); B66B 5/16 (2006.01); B66B 9/00 (2006.01)
CPC B66B 5/284 (2013.01) [B66B 1/365 (2013.01); B66B 5/16 (2013.01); B66B 9/003 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A safety arrangement for a turning station of an elevator system, comprising:
a rotatable turning device;
a first mechanical device having at least one arcuate section extending about a perimeter of the rotatable turning device and having at least one opening at the perimeter of the rotatable turning device, a length along the perimeter of the least one arcuate section being greater than a length along the perimeter of the at least one opening, the first mechanical device being rotatable about an axis;
a second mechanical device having at least one opening,
at least one blocking position for preventing an elevator car from entering the turning station by the at least one opening of the first mechanical device not aligning with the at least one opening of the second mechanical device; and
at least one aligned position having the at least one opening of the first mechanical device aligned with the at least one opening of the second mechanical device to allow the elevator car to enter and exit the turning station.