Patent ID: 7237765
Filing Date: 2007-07-03
Classification: B66B

Abstract:
1. Speed limiter system for lifting devices, among systems for detecting over speeds, that comprises a main part which is the speed limiter itself and a tension pulley in which the speed limiter comprises two weights that pivot with respect to a fixed point and that are joined at their ends by connections to an arm that pivots on another fixed point, both moving symmetrically and with means of adjusting the speed of action through a spring, one end of which is joined to one of the weights and the other to a mobile piece that is adjusted by a tension screw, characterised in that electrical means are associated with the speed limiter to generate an over speed signal, as well as means for remotely resetting that return the electrical means to a position independently of the direction of rotation in which the electrical means have been operated and in which the tension pulley provides the sufficient tension on the cable so that in the event of an over speed, brakes operate correctly.