Patent ID: 7905328
Filing Date: 2011-03-15
Classification: B66B

Abstract:
1. A brake device for an elevator car, comprising: at least one brake unit that is mounted on the elevator car and has an actuating element; at least two tension-means reversing-sheaves of which one is installed in an area of an upper end, and one in an area of a lower end, of a travel path of the car, respectively; a flexible tension means that passes around the tension-means reversing-sheaves, the flexible tension means having two ends extending parallel to the travel path of the elevator car and being fastened to a coupling element that couples the tension means to the actuating element of the brake unit and thereby also to the elevator car, and in normal operation moving synchronously with the elevator car; a blocking device operative to brake the tension means, at least on overspeed of the elevator car, so as to activate the brake unit via the actuating element; and a monitoring device that detects failure of the coupling between the tension means and the actuating element.