A plate for supporting the linings with friction material for disc brakes of railway wheeled vehicles and a friction shoe containing said plate

摘要

The present invention relates to a supporting plate (1) for supporting a plurality of friction material buttons (T) for disc brakes of railway wheeled vehicles. Said supporting plate comprises: - at least a first through hole (F1) to allow coupling of each button (T) with said supporting plate (1); each first through hole (F1) defining an area and the group of areas of each first through hole (F1) defining a centre of gravity (BA) on said supporting plate (1), - at least one group of first eyelets or slots (5) arranged around said at least a first through hole (F1), each group of first eyelets (5) comprising at least two first eyelets (5), - a plurality of second through holes (F2) for the insertion of a respective blocking element (MB) so as to couple said supporting plate (1) with a base plate (2); said second through holes (F2) being arranged in proximity to the perimeter of said supporting plate (1). Said first eyelets (5) alternate with first portions (7) of the supporting plate, so that, in the braking phase of a railway wheeled vehicle, in the presence or absence of a temperature difference between said supporting plate (1) and said base plate (2), said first portions (7) are deformed in the elastic field, due to the effect of normal forces applied on said buttons (T), in such a way that distributions of contact pressure on the buttons (T) are substantially uniform with each other. The present invention also relates to a friction pad comprising said supporting plate.