Operational brake of an elevator, and an elevator

摘要

The aim of the invention is to reduce the operating malfunctions of an operational brake caused by bending that is the result of the thermal expansion of the brake shoe of the operational brake of an elevator. The operational brake (2) of an elevator comprises a frame part (32), a disc (27) of the brake, said disc being arranged at the end of an air gap and being movable with respect to the frame part (32) by means of a guide arm (24), and a brake shoe (20) fixed to the disc (27). The brake shoe (20) is supported on the disc (27) by means of a protrusion (23) that is shorter than the brake shoe (20), which protrusion is arranged in a recess (34) in the disc (27) in such a way that the thermal expansion occurring in an operating situation of the brake shoe (20) is displaced into the disc (27) primarily from the protrusion (27) at the point of the recess (34).