Patent ID: 8937260
Filing Date: 2015-01-20
Classification: H01H

Abstract:
1. A control mechanism for the displacement of at least one moving contact of a single-pole or multipolar low-voltage circuit-breaking device, said control mechanism comprising elastic means operatively connectable to said at least one moving contact and comprising a plurality of elements, at least a first of which is operatively connected to a second element by means of pin-shaped connection means, characterized in that said first and said second elements each comprise a pair of facing lateral portions that are connected by a transverse portion, said pin-shaped connection means comprising a pair of pin-shaped ends, each of which emerges from one side of a lateral portion of said first element, and also comprising a pair of seats, each of which is defined on a lateral portion of said second element, each of said pin-shaped ends being inserted inside a corresponding seat so as to configure an axis of mutual rotation between said first and second elements, said elastic means being arranged so as to exert a retaining force on said pin-shaped ends sufficient to keep them coupled with the corresponding seats in which they are inserted; wherein said first element maintains a fixed position with respect to a housing during the operation of said control mechanism; wherein said first element in a fixed position is a supporting frame comprising a first pair of lateral portions connected by first transverse connecting portion; wherein said supporting frame is operatively connected to a trip shaft of said control mechanism; wherein said mechanism comprises a main hook operatively connected to said supporting frame by means of first pin-shaped connection means that define a first axis of mutual rotation, said main hook comprising a second pair of lateral portions mutually connected by a second transverse connecting portion, said first pin-shaped connection means comprising a first pair of pin-shaped ends that emerge each from one of said lateral portions of said main hook, and a first pair of seats-defined on said lateral portions of said frame, in each of which a first pin-shaped end of said first pair of pin-shaped ends is inserted.