Interchangeable motorcycle sprocket ring

• US 20030199351A1
• Filed: 04/22/2002
• Published: 10/23/2003
• Est. Priority Date: 04/22/2002
• Status: Abandoned Application

• Current Assignee: David J. Nichols
• Original Assignee: David J. Nichols
• Inventors: Nichols, David J.
• Application Number:
  US10/128,003
• Publication Number:
  US 20030199351A1
• Time in Patent Office: Days
• US Class Current: 474/160
• CPC Class Codes: B62M 9/02 of unchangeable ratio
• CPC Class Codes: B62M 9/10 involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like bicycle hubs rotatably arranged on axle B60B27/023
• CPC Class Codes: F16H 55/12 with body or rim assembled out of detachable parts
• CPC Class Codes: F16H 55/30 Chain-wheels

Abstract

A sprocket ring has outwardly protruding spaced teeth to engage the motorcycle drive chain and an inner circular flange to interconnect with the sprocket hub. The sprocket hub has an outer circular flange to interconnect with the sprocket ring. Mating holes in the flanges receive bolts therethrough to interconnect the ring and the hub.

Claims

1. A two-piece sprocket for a motorcycle, the sprocket comprising:

a sprocket ring having outer spaced teeth extending outwardly from the ring for engaging a motorcycle drive chain and having an inner circular flange provided with spaced holes for receiving bolts therethrough;

a sprocket hub having an outer circular flange capable of mating with the inner circular flange of the sprocket ring with mating spaced holes for receiving bolts therethrough to interconnect the sprocket ring to the sprocket hub.

2. The two-piece sprocket of claim 1 wherein any of a number of different sprocket rings of different sizes and having different numbers of teeth are capable of being attached to the sprocket hub to change the gearing ratio.

3. The two-piece sprocket of claim 1 wherein the sprocket ring and the sprocket hub are fabricated of different materials to create a hybrid sprocket.

4. The two-piece sprocket of claim 3 wherein the sprocket ring is fabricated of steel.

5. The two-piece sprocket of claim 3 wherein the sprocket hub is fabricated of aluminum.