US 9,809,420 B2
Compensatory measure for low overhead or low pit elevator
Aurelien Fauconnet, Isdes (FR); and Etienne Delachatre, Saint Benoit (FR)
Assigned to OTIS ELEVATOR COMPANY, Farmington, CT (US)
Appl. No. 14/430,842
Filed by Otis Elevator Company, Farmington, CT (US)
PCT Filed Sep. 25, 2012, PCT No. PCT/IB2012/002294
§ 371(c)(1), (2) Date Mar. 24, 2015,
PCT Pub. No. WO2014/049387, PCT Pub. Date Apr. 3, 2014.
Prior Publication US 2015/0251876 A1, Sep. 10, 2015
Int. Cl. B66B 5/00 (2006.01); B66B 5/18 (2006.01)
CPC B66B 5/0068 (2013.01) [B66B 5/18 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A safety system for an elevator, comprising:
a safety brake, operatively connectable to one of an elevator car or a counterweight, the safety brake comprising a safety linkage configured to engage the safety brake when actuated;
a safety device, configured to be mounted to a guide rail, the safety device including an actuator and an actuation device, the actuation device being movable between a first position and a second position,
wherein when the actuation device is in the first position, the safety device does not actuate the safety linkage of the safety brake, and when the actuation device is in the second position, the safety device is configured to actuate the safety linkage of the safety brake by physically contacting the safety linkage, wherein gravity causes the actuation device to move between the first position and the second position.