RELEASE UNIT FOR ACTUATING A LIFT BRAKE DEVICE

The invention relates to a release unit (1) for actuating a lift brake device (23), comprising a release main body (2) which can be mounted on the lift car, a release means (20) and a coupling member (22), by means of which the release unit (1) is connectible to a lift brake device (23), wherein the release unit (1) is preferably designed as an assembly which is completely separate from said lift brake device (23) and which is connected to the lift brake device (23) exclusively via the coupling member (22) in the intended mounted state, wherein the release means (20) comprises a release clamping surface (7), which, after the release, moves together with a clamp roller (5) transversely to the direction of travel of the lift in the direction of the lift guide rail (6) assigned thereto, until the clamp roller (5) is clamped between the release clamping surface (7) and the lift rail (6) and rolls between the release clamping surface (7) and the lift rail (6), wherein a main clamping surface (8), which is anchored on the release main body (2) separately from the release clamping surface (7), is connected on both sides, as seen in both directions of travel, to the release clamping surface (7), and wherein the release clamping surface (7) and the main clamping surfaces (8) are arranged and designed such that the clamp roller (5) rolls over each end of the release clamping surface (7) into the gap between a main clamping surface (8) and the guide rail (6), regardless of whether upward or downward travel is currently taking place.