Safety brake device for moving machine elements

摘要

A safety brake device for moving machine elements to prevent injury to the extremities of the operator of a machine if the distance of said operator from the moving machine element is less than a defined safety area. The device is characterized by an arrangement for detecting the operator position, in order to permit operation of the machine only if the operator remains within the defined working area, an arrangement for detecting the position of the extremities of the operator within a predefined safety zone, which enables the required work activities to be performed, and a brake device, by means of which the moving machine element can be immediately stopped if the extremities of the operator go beyond the safety area.

主权项

1. A safety brake device for moving machine elements to prevent injury to the extremities of an operator of a machine for a distance of said operator from the moving machine element less than a predefined defined safety zone, comprising:
a transponder worn, directly or indirectly, by the operator in an arrangement for detecting the operator's position, and permit operation of the machine only if the operator remains within a defined working area and shut down the machine as soon as the operator leaves the defined working area; photoelectric sensors or laser scanners attached to the machine in an arrangement for detecting the position of the operator's extremities within the safety zone which enables the required work activities to be performed; and a control module acting on a brake caliper of said safety brake device, said control module configured to determine that the operator's extremities go beyond the safety zone based on signals from the photoelectric sensors or laser scanners, and to function electrically or electronically to immediately stop the moving machine element when the operator's extremities go beyond the safety zone, and interrupting or enabling energy supply to said machine.