Carrier and mount

Abstract

A carrier and mount assembly for a heavy vehicle disc brake. The assembly includes a carrier having a first location formation formed therein, a mount having a second location formation formed therein, wherein the second location formation is aligned with the first location formation, and wherein the carrier is mounted to the mount via two or more fasteners that extend in a direction substantially parallel to a direction of insertion or removal of a friction element into or from the carrier. There is also a locator positioned in the first and second location formations to enable the carrier and mount to be assembled in the correct position, wherein the locator is at least a close fit to the first and second location formations.

What is claimed is: 
     
         1 . A carrier and mount assembly for a heavy vehicle disc brake, the assembly comprising:
 a carrier having a first location formation formed therein,   a mount having a second location formation formed therein, wherein the second location formation is aligned with the first location formation, and wherein the carrier is mounted to the mount via two or more fasteners that extend in a direction substantially parallel to a direction of insertion or removal of a friction element into or from the carrier; and   a locator positioned in the first and second location formations to enable the carrier and mount to be assembled in the correct position, wherein the locator is at least a close fit to the first and second location formations.   
     
     
         2 . The carrier and mount assembly according to  claim 1 , wherein the first location formation and the second location formation are positioned to extend in a direction substantially parallel to a direction of insertion or removal of a friction element into or from the carrier. 
     
     
         3 . The carrier and mount assembly according to  claim 1 , wherein only one locator is provided in the carrier and mount assembly. 
     
     
         4 . The carrier and mount assembly according to  claim 1 , wherein the first location formation is a hole formed in the carrier and the second location formation is a hole formed in the mount, and the locator is a peg positioned in the first location formation and the second location formation. 
     
     
         5 . The carrier and mount assembly according to  claim 4 , wherein the peg is an elongate cylindrical member. 
     
     
         6 . The carrier and mount assembly according to  claim 4 , wherein the peg comprises a knurled portion positioned in one of the carrier and the mount, and the knurled portion is dimensioned to be an interference fit with the carrier. 
     
     
         7 . The carrier and mount assembly according to  claim 1 , wherein the carrier comprises two holes arranged such that one hole is positioned on either side of a plane defined by an axis extending substantially parallel to a direction of insertion or removal of a friction element into or from the carrier, and an axis of rotation of a rotor of a disc brake, and wherein the mount comprises two holes positioned to be substantially coaxial with the two holes of the carrier, and wherein one of the two or more fasteners extends through each of the holes for mounting the carrier to the mount. 
     
     
         8 . The carrier and mount assembly according to  claim 7 , wherein the carrier comprises two further holes arranged such that one further hole is positioned on either side of a plane defined by an axis extending substantially parallel to a direction of insertion or removal of a friction element into or from the carrier, and an axis of rotation of a rotor of a disc brake, and wherein the mount comprises two further holes positioned to be substantially coaxial with the two further holes of the carrier, and wherein one of the two or more fasteners extends through each of the further holes for mounting the carrier to the mount. 
     
     
         9 . The carrier and mount assembly according to  claim 8 , wherein the two holes, the two further holes, and the first and second location formations are arranged in line in a direction substantially perpendicular to an axis of rotation of a rotor of a disc brake, and substantially perpendicular to a direction substantially parallel to a direction of insertion or removal of a friction element into or from the carrier. 
     
     
         10 . The carrier and mount assembly according to  claim 9 , wherein the first location formation and the second location formation are positioned between one of the holes and one of the further holes. 
     
     
         11 . The carrier and mount assembly according to  claim 1 , wherein the locator is a bush, and the bush extends at least partially through the first and second location formations. 
     
     
         12 . The carrier and mount assembly according to  claim 11 , wherein the bush is a split bush. 
     
     
         13 . The carrier and mount assembly according to  claim 11 , wherein an end of the bush received in the mount has a chamfered outer edge. 
     
     
         14 . The carrier and mount assembly according to  claim 11 , wherein the carrier comprises two holes arranged such that one hole is positioned on either side of a plane defined by an axis extending substantially parallel to a direction of insertion or removal of a friction element into or from the carrier, and an axis of rotation of a rotor of a disc brake, and wherein the mount comprises two holes positioned to be substantially coaxial with the two holes of the carrier, and wherein one of the two or more fasteners extends through each of the holes for mounting the carrier to the mount. 
     
     
         15 . The carrier and mount assembly according to  claim 14 , wherein the first location formation is integrally formed with one of the holes in the carrier and the second location formation is integrally formed with one of the holes in the mount. 
     
     
         16 . The carrier and mount assembly according to  claim 15 , further comprising a further bush positioned to extend at least partially through the other of the two holes formed in the carrier and mount. 
     
     
         17 . The carrier and mount assembly according to  claim 16 , wherein the further bush is a loose fit to the hole in the mount. 
     
     
         18 . The carrier and mount assembly according to  claim 17 , wherein the carrier and the mount include two further holes positioned to be on each side of a rotor of a disc brake. 
     
     
         19 . The carrier and mount assembly according to  claim 18 , wherein the bushes are located in the holes nearest the rotor. 
     
     
         20 . A method of mounting a carrier of a disc brake to a mount, the method comprising:
 providing a carrier to be mounted having a first location formation;   providing a mount having a second location formation alignable with the first location formation;   positioning a locator in the first and second location formation to support the carrier in alignment with respect to the mount so as to correctly position the carrier with respect to the mount; and   mounting the carrier to the mount using fasteners that in a mounted position extend in a direction substantially parallel to a direction of insertion or removal of a friction element into or from the carrier;   wherein the first and second location formations are formed to be at least a close fit with the locator.