Frictionless safety brake actuator

A frictionless safety brake actuator (100) for use in an elevator system (10), comprising:

• a triggering component (130) moveable between a first position and a second position;
• a reset component (110) movable between a normal operation position and a reset position;
• a biasing arrangement (120) arranged to apply a biasing force (FB) to the triggering component (130) to bias the triggering component (130) away from the reset component (110) towards the first position;
• wherein one of the triggering component (130) or the reset component (110) comprises a magnetic material (132), and the other of the triggering component (130) or the reset component (110) comprises an electromagnet (112), wherein the electromagnet (112) is operable to selectively contribute to a magnetic force (FH, FR) which acts upon the magnetic material (132);
• and
• a reset driver (180) arranged to drive movement of the reset component (110) between the normal operation position and the reset position independently of movement of the triggering component (130);
• wherein, when the triggering component (130) is in the first position, the reset driver (180) is arranged to drive a first stage of movement of the reset component (110) from the normal operation position towards the triggering component (130) in the first position to reach the reset position;
• wherein the reset driver (180) is further arranged to drive a second stage of movement of the reset component (110) from the reset position to the normal operation position;
• and
• wherein an attractive magnetic force (FR) acts between the magnetic material (132) and the electromagnet (112) at least during the second stage of movement so the second stage of movement of the reset component (110) returns the triggering component (130) to the second position.