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CHAIN-SPROCKET MECHANISM, CHAIN AND SPROCKET

  • US 20070149333A1
  • Filed: 12/21/2006
  • Published: 06/28/2007
  • Est. Priority Date: 12/26/2005
  • Status: Abandoned Application
First Claim
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1. A chain-sprocket mechanism comprising:

  • a plurality of disc-shaped sprockets having a plurality of teeth disposed around the perimeter and rotatably mounted; and

    a chain provided so as to mesh with the teeth of the sprockets and moving according to the rotation of the sprockets, the chain being structured by coupling a plurality of link plates that consist of a pair of outer plates provided so as to oppose each other, a pair of inner plates disposed inside the outer plates, a cylindrical bushing fitted to the inner plates and having contact with the teeth, and a pin inserted through the outer plates, the inner plates and the bushing, wherein the surface of at least either of the teeth or the bushing comprises a non-metallic material.

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