Holding brake with locking mechanism

摘要

A holding brake is designed for use in an elevator installation, the installation comprising an elevator cage, a drive and a drive control, wherein a support is movable by way of the drive and the elevator cage is movable by way of this support. The holding brake is designed for application of a mechanical braking action relative to a guide rail of the elevator installation so that the elevator cage after actuation of the holding brake retains its vertical position. The holding brake comprises a locking mechanism which is designed so that it acts from two opposite sides on the guide rail.

主权项

1. An elevator installation holding brake coupled to an elevator cage or a counterweight, comprising:
first and second brake shoes; a first actuator coupled to the first brake shoe; a second actuator coupled to the second brake shoe, the first and second actuators being configured to cause the first and second brake shoes to press against and produce a braking force at a guide rail of the elevator installation for holding the elevator cage or the counterweight that is at a fixed position relative to the guide rail; a locking mechanism; a traction device coupled to the locking mechanism; and a cross member, the first and second brake shoes being arranged at and linearly guided along the cross member, the cross member being movable relative to the traction device, the traction device being configured to cause the first and second brake shoes to amplify the braking force produced by pressing against the guide rail through movement of the traction device relative to the cross member.