Braking band of a disc for disc brake of ventilated type

Abstract

A braking band of a disc for disc brake of ventilated type, said braking band comprising two plates facing each other; said plates comprising inner surfaces directly or indirectly facing each other and delimiting a gap, said plates comprising a plate body having an extension in axial direction or plate thickness, said plates being joined to each other by heat dissipation elements or connecting elements (16, 17, 18, 19), said connecting elements being shaped as columns and / or ribs or fins projecting from one plate towards the opposite plate in the shape of connecting bridges of the plates, wherein at least one of the plates comprises at least one ridge (20, 21, 22) projecting from said plate into said gap without reaching the opposite plate, thus forming at least one localized narrowing of said gap and a thickening of the plate body, thus creating a localized increase of said plate thickness, and wherein said at least one ridge (20, 21, 22) extends at least from a first connecting element (16, 17, 18, 19) to an adjacent connecting element by connecting said connecting elements, and wherein said at least one ridge (20, 21, 22) extends at least along said circumferential direction connecting at least two adjacent connecting elements (16, 17, 18, 19) arranged side-by-side in circumferential direction, and wherein said connecting elements and said at least one ridge may be grouped in modules (31, 32, 33, 34) distributed circumferentially along said gap, at least a first module (31) comprises at least three adjacent connecting elements (16) connected to one another by two ridges (20, 21), wherein said two ridges (20, 21) are aligned circumferentially and wherein said two ridges (20, 21) project from a first plate into said gap without reaching the opposite plate, and wherein - at least a second module (32) comprises at least three adjacent connecting elements (16) connected to one another by two ridges (20, 21), wherein said two ridges (20, 21) are aligned circumferentially and wherein said two ridges (20, 21) project from a second plate into said gap without reaching the opposite plate, and wherein at least a third module (33) comprises at least one connecting element (17) without connection at each ridge.

Description

technical field [0001] The present invention relates to a brake band and to a ventilated disc for disc brakes, particularly but not exclusively for use in the automotive sector. Background technique [0002] In disc brakes, a brake caliper is usually arranged to straddle the outer peripheral boundary of the brake disc, the brake caliper being adapted to rotate about an axis of rotation (A-A) defining an axial direction (X-X). In the brake disc, a radial direction (R-R) substantially orthogonal to said axial direction (X-X) is also defined and related to said axial direction (X-X), said radial direction (R-R) and local The tangential direction (T-T) is orthogonal to the circumferential direction (C-C), which is precisely orthogonal to said axial direction (X-X) and radial direction (R-R). [0003] As is known, the discs for disc brakes comprise a bell suitable for associating the disc with the hub of the vehicle, from which the annular portion, called the brake band, intende...

AI Technical Summary

Problems solved by technology

[0030] The aforementioned known examples of ventilated discs and corresponding brake bands do not adequately satisfy all of the strongly desired requirements mentioned

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