The invention provides an over-speed detection device (OSDD) and over-speed governor (OSG) for a stairlift, the OSDD/OSG being tripped by flyweights which displace from the rotational axis of the OSDD/OSG when subjected to over-speed. The outward displacement of the flyweights is converted into an axial displacement to effect triggering of the OSG. This ensures that the tripping speed is independent of the angle of inclination of the stairlift rail. A number of other features are described including mounting the OSDD/OSG so that it takes its drive from a convex surface of the rail in negative transition bends. This ensures that the speed of the OSDD/OSG is maintained close to the tripping speed even when the carriage is slowed to traverse the negative transition bend.
STAIRLIFT WITH OVER-SPEED DETECTION DEVICE
TREPPENLIFT MIT ÜBERGESCHWINDIGKEITSERKENNUNGSVORRICHTUNG
MONTE-ESCALIER AVEC DISPOSITIF DE DÉTECTION DE SURVITESSE
2020-04-15
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |