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Gears for web transport

  • US 4,410,120 A
  • Filed: 12/04/1981
  • Issued: 10/18/1983
  • Est. Priority Date: 12/04/1981
  • Status: Expired due to Fees
First Claim
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1. Improved gear apparatus for use in a drive system of a processor of photosensitive material, the improvement comprising:

  • a shaft with a first keyway having a first arcuate surface;

    a gear with a coaxial aperture having an interior surface positioned about the shaft over the first keyway and a bore having an interior surface and communicating with the aperture, the gear being made of an ultra-high molecular weight polyethylene;

    a key having a second arcuate surface cooperating with the first arcuate surface and a first end portion and a second end portion with the first end portion communicating with the bore;

    means for engaging the first portion of the key through the bore such that the key when engaged slides along the first arcuate keyway and the second portion of the key deformably engages the interior surface of the aperture, the means for engaging being sufficiently large to initially deform the interior surface of the bore such that the interior surface of the bore securely holds the means for engaging thereby securely retaining the gear in a fixed position on the shaft.

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