| 摘要 |
The invention relates to a disc brake pad ( 1 ), particularly to be employed in the railway field, comprising a base plate ( 2 ), on which elements for supporting friction elements ( 3 ) are fixed, said friction elements ( 3 ) being mounted, alone or in pairs, on the end of elastic support elements ( 4 ), said support elements ( 4 ) being fixed spaced on the base plate ( 2 ) by fixing means ( 5 ), in such a way that the friction elements ( 3 ) are placed on the projecting and freely movable ends of said support elements ( 4 ), said pad ( 1 ) being characterised in that said support elements ( 4 ) are placed on said base plate ( 2 ) with their main axis oriented substantially perpendicular with respect to a ray passing through the center of the brake disc. Positioning and sizes of said friction elements is such to make the circular portion or disc of the disc on which each friction element or pair of friction elements acts as more narrow as possible, so as minimisiing the peripheral speed difference between inner diameter and outer diameter of said portion or band. Optimum dimension of the portion or band is up to 40 mm for single friction element and up to 50 mm for each pair of elements mounted on a single support.
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