Patent ID: 11884514
Assignee: INVENTIO AG
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 11:
12. A method for safety braking an elevator, the elevator having an upright guide rail and a safety brake device for engaging the guide rail, the method comprising the steps of:
providing the safety brake device adjacent to the guide rail, the safety brake device having a housing, braking elements in the housing and arranged on both sides of the guide rail, the braking elements being movable along the guide rail relative to the housing, a safety restraint on both sides of the guide rail between the housing and the braking elements, and a clampable and lockable actuating device for the braking elements;
in response to a triggering event, unlocking and unclamping the actuating device from an actuating device initial position thereby bringing the braking elements into braking engagement with the guide rail;
the actuating device, when unclamped, developing a feed force and a feed movement directed transversely to a longitudinal axis of the guide rail, the feed force and the feed movement bringing the braking elements into engagement with the guide rail from a laterally distanced initial position of the braking elements, the engaged braking elements being entrained by frictional contact on the guide rail and entering the safety restraint during movement of the safety braking device parallel to the longitudinal axis of the guide rail; and
moving the actuating device back into the initial position of the actuating device as the braking elements enter the safety restraint, the actuating device being clamped and locked by the braking elements located in the safety restraint.