ELEVATOR SAFETY DEVICE

摘要

An elevator system (20) includes a safety device (30) for controlling movement of an elevator car (22) as needed. The inventive safety device (30) includes movable members (34) that support rollers (44) for selectively moving the rollers (44) into engagement with corresponding surfaces (48) on guide rails (24). Brake pads (50) apply a braking force to side surfaces (52) of the rollers (44). The braking force in the inventive arrangement is applied in a direction generally parallel to an axis of rotation of the rollers and is not applied directly to the guide rail surfaces.