Parking Brake

1 . A brake for a vehicle, comprising:

a disc comprising:

a braking band of a first material, comprising two opposing friction surfaces which are planar and suitable to interact with a brake caliper, and a radially inner track, and

a support bell of a second material, which is suitable to be structurally connected to said braking band; and

a shoe device 2 which is suitable to radially act on said inner track.

2 . The brake in accordance with claim 1 , wherein said braking band has a central symmetry.

3 . The brake in accordance with claim 1 wherein said braking band is substantially shaped as an annulus.

4 . The brake in accordance with claim 1 wherein said braking band has a multilobal shape.

5 . The brake in accordance with claim 1 , wherein said braking band comprises ventilation ducts that are obtained in the thickness of said braking band.

6 . The brake in accordance with claim 5 , wherein said ventilation ducts comprise inlets that are placed along said radially inner track.

7 . The brake in accordance with claim 5 , wherein said ventilation ducts comprise inlets having an axial development and being placed along an inner annulus of said braking band.

8 . The brake in accordance with claim 1 , wherein said first material is cast iron.

9 . The brake in accordance with claim 1 , wherein said first material is a ceramic matrix composite material.

10 . The brake in accordance with claim 1 , wherein said radially inner track is formed on a surface that innerly defines said braking band and on which profile a cylindrical surface can be inscribed that is tangential in a plurality of points or tracts along the development of said profile.

11 . The brake in accordance with claim 1 , wherein said radially inner track is continuous and does not have interruptions or discontinuity.

12 . The brake in accordance with claim 1 wherein said radially inner track is cylindrical.

13 . The brake in accordance with claim 1 , wherein said radially inner track is discontinuous and comprises interruptions along the development thereof.

14 . The brake in accordance with claim 1 , wherein said second material is selected from light aluminium alloys.

15 . The brake in accordance with claim 1 , wherein said support bell and said braking band are connected by means of a plurality of connecting devices.

16 . The brake in accordance with claim 15 , wherein said connecting devices have a substantially axial development.

17 . The brake in accordance with claim 15 , wherein said connecting devices are arranged on a radially inner annulus of said braking band.

18 . The brake in accordance with claim 17 , wherein said connecting devices are alternately arranged between said inlets of said ventilation ducts.

19 . The brake in accordance with claim 15 , wherein said connecting devices comprise:

shaped blocks which are suitable to be housed in radial slots that are obtained on said support bell;

pins suitable to be housed within axial seats that are formed on said braking band; and

removable fastening means suitable to axially fasten said connecting devices.

20 . The brake in accordance with claim 19 , wherein said shaped blocks are suitable to slide in the radial direction along said radial slots of said support belly.

21 . The brake in accordance with claim 1 , wherein said shoe device is of the Drum-In-Hat type.

22 . The brake in accordance with claim 1 , wherein said shoe device is mounted in an axially aligned position relative to said braking band.

23 . The brake in accordance with claim 1 , wherein said shoe device comprises at least one brake shoe and an actuator.

24 . The brake in accordance with claim 23 , wherein said actuator is suitable to radially thrust said at least one brake shoe outwardly from the inside.

25 . The brake in accordance with claim 23 , wherein said actuator is suitable to hold this brake shoe in the radially outer position, until a contrary command is given.