Disc assemblies for vehicle disc brakes
AssigneeLucas Industries public limited company
InventorsDavid F. Russell, Keith Mungo
Life of this patent
Estimating the term…
Abstract
A disc assembly for a vehicle disc brake has a rotor with a pair of opposite faces from which are mounted annular braking discs. Each disc is mounted for limited radial movement on a carrier device by fasteners located outside the braking area of the disc; and the disc and the carrier device have complementary radial abutment faces, the carrier device being mounted on the rotor by connectors. The brake torque is transmitted from the discs to the carrier device by the abutment faces and then to the rotor by the connectors. This provides a simple construction which reduces stress on the discs and permits and guides radial expansion of the discs during braking.
Claims8
A disc assembly for a vehicle disc brake comprising a rotor, a pair of oppositely directed faces defined on said rotor, and an annular braking disc mounted on each of said faces, each said braking disc having a braking area and circumferentially spaced apart lugs which extend radially outwardly from the perimeter of the braking disc radially beyond the braking area, carrier means including a carrier plate, being secured both to the braking disc and to the rotor, the carrier plate having a plurality of lugs, said lugs extending radially outwardly with respect to the rotor;
- complementary radial abutment faces being provided on the carrier plate and the brake disc respectively, said lugs on the carrier plate being superimposed on said lugs of the brake disc;
- means for connecting at least one of said lugs of the carrier plate to the rotor;
- means for fastening another one of said lugs of the carrier plate to a superimposed one of said lugs of the brake disc;
- and means for permitting relative radial movement of said disc and said carrier.
A disc assembly as claimed in claim 11, said carrier means having a plurality of segmented plates, each one of said carrier plates having at least two abutment faces for transmitting brake torque from the brake disc to the carrier means.
A disc assembly as claimed in claim 11, wherein said means for fastening and said means for connecting include nut and bolt assemblies, said assemblies including bolts passing through openings in the carrier plate lugs and openings in said brake disc lugs.
A disc assembly as claimed in claim 11, wherein at least one of said lugs of the carrier plate is secured to the rotor by one of said nut and bolt assemblies, the bolt of the last-mentioned assembly passing through superimposed openings in said rotor and said carrier plate lug.
Dependencies are inferred from the claim text.