Rotational fixing for a guide pin of a disc brake and method thereof

Abstract

A rotational fixing for a guide pin of a disc brake and method for fixing a guide pin of a disc brake. The rotational fixing includes a guide sleeve having a sleeve portion, a receiving portion of a brake carrier, and an inter-connection. The receiving portion receives the sleeve portion. The inter-connection engages the sleeve portion and the receiving portion and restricts rotation of the guide sleeve relative to the brake carrier when the sleeve portion is received by the receiving portion.

What is claimed is: 
     
         1 . A rotational fixing for a guide pin of a disc brake comprising:
 a sleeve portion of a guide sleeve;   a receiving portion of a brake carrier that receives the sleeve portion; and   an inter-connection to engage the sleeve portion and the receiving portion so as to restrict rotation of the guide sleeve relative to the brake carrier when the sleeve portion is received by the receiving portion.   
     
     
         2 . The rotational fixing of  claim 1  wherein the inter-connection engages the sleeve portion and receiving portion so as to restrict translation of the guide sleeve relative to the brake carrier when the sleeve portion is received by the receiving portion. 
     
     
         3 . The rotational fixing of  claim 1  wherein the sleeve portion further comprises a flange arranged at a first end of the guide sleeve. 
     
     
         4 . The rotational fixing of  claim 1  wherein the receiving portion further comprises a receiving face. 
     
     
         5 . The rotational fixing of  claim 1  wherein the sleeve portion further comprises a flange arranged at a first end of the guide sleeve and the receiving portion further comprises a receiving face. 
     
     
         6 . The rotational fixing of  claim 4  wherein the receiving face is a surface region of an inboard surface of the brake carrier, and the receiving face is substantially flush with the inboard surface. 
     
     
         7 . The rotation fixing of  claim 4  wherein the receiving portion further comprises a recess formed in the brake carrier in which the sleeve portion is received so as to restrict translation of the guide sleeve relative to the brake carrier, and the receiving face is disposed in the recess. 
     
     
         8 . The rotational fixing of  claim 1  wherein the inter-connection further comprises:
 a first cavity formed in the sleeve portion; 
 a second cavity formed in the receiving portion; and 
 a connector that is co-locatable in the first cavity and the second cavity when the sleeve portion is received by the receiving portion. 
 
     
     
         9 . The rotational fixing of  claim 2  wherein:
 the sleeve portion further comprises a flange that has a flange face and an outer edge; 
 the receiving portion further comprises a recess that has a receiving face and an inner edge; and 
 the inter-connection further comprises a first cavity formed on the flange face, a second cavity formed on the receiving face, and a connector co-locatable in the first cavity and the second cavity when the sleeve portion is received by the receiving portion. 
 
     
     
         10 . The rotational fixing of  claim 8  wherein:
 the connector further comprises a ball bearing; 
 the first cavity further comprises a semi-circular cavity that receives a first sector of the ball bearing; and 
 the second cavity further comprises a semi-circular cavity that receives a second sector of the hall hearing. 
 
     
     
         11 . The rotational fixing of  claim 8  wherein:
 the connector further comprises a pin; 
 the first cavity receives a first end of the pin; and 
 the second cavity receives a second end of the pin. 
 
     
     
         12 . The rotational fixing of  claim 8  wherein the receiving portion is deformable and the second cavity is formed when the connector is pushed into the receiving portion to form a cavity in which a part of the connector is received. 
     
     
         13 . The rotational fixing of  claim 1  wherein the inter-connection further comprises:
 a protrusion extending from the sleeve portion; and 
 an indent formed in the receiving portion that receives the protrusion when the sleeve portion is received by the receiving portion and the protrusion and indent are aligned. 
 
     
     
         14 . The rotational fixing of  claim 1  wherein the inter-connection further comprises:
 a protrusion extending from the receiving portion; and 
 an indent formed in the sleeve portion that receives the protrusion when the sleeve portion is received by the receiving portion and the protrusion and indent are aligned. 
 
     
     
         15 . A disc brake comprising:
 a brake carrier having a receiving portion;   a caliper;   at least one guide pin; and   a rotational fixing that includes:
 a guide sleeve that is disposed on the guide pin and has a sleeve portion that is received by the receiving portion; and 
 an inter-connection that engages the sleeve portion and the receiving portion so as to restrict rotation of the guide sleeve relative to the brake carrier when the sleeve portion is received by the receiving portion. 
   
     
     
         16 . The disc brake of  claim 15  wherein:
 the guide pin further comprises a guide fastener that secures the guide pin to the brake carrier; and 
 the disc brake further comprises a bore formed in the brake carrier that receives the guide fastener, the bore being arranged in the receiving portion. 
 
     
     
         17 . A method for fixing a guide pin of a disc brake comprising:
 providing a sleeve portion of a guide sleeve, the sleeve portion having a first cavity;   providing a receiving portion of a brake carrier, the receiving portion having a second cavity; and   co-locating a connector in the first cavity and the second cavity to engage the sleeve portion and receiving portion so as to restrict rotation of the guide sleeve relative to the brake carrier.   
     
     
         18 . The method of  claim 17  wherein the connector restricts translation of the guide sleeve relative to the brake carrier. 
     
     
         19 . The method of  claim 17  wherein when the second cavity is pre-formed co-locating the connector further comprises:
 locating a first part of the connector in the first cavity; 
 positioning the sleeve portion with the connector located in the first cavity in the receiving portion; and 
 aligning the first cavity and the second cavity to locate a second part of the connector in the second cavity. 
 
     
     
         20 . The method of  claim 17  wherein when the receiving portion is deformable co-locating the connector further comprises:
 locating a first part of the connector in the first cavity; 
 positioning the sleeve portion with the connector located in the first cavity in the receiving portion; and 
 pushing the connector against the deformable receiving portion to form the second cavity in which a second part of the connector is located.