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Multi-speed transmission

  • US 8,920,280 B1
  • Filed: 06/13/2013
  • Issued: 12/30/2014
  • Est. Priority Date: 06/13/2013
  • Status: Expired due to Fees
First Claim
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1. A transmission comprising:

  • an input shaft supported for rotation about a first axis;

    an output shaft supported for rotation about a second axis, the second axis parallel to the first axis;

    first, second, and third shafts supported for rotation about the second axis;

    a first gearing arrangement configured to fixedly impose a linear speed relationship among the first shaft, the second shaft, the output shaft, and the third shaft;

    a second gearing arrangement configured to selectively impose a first fixed speed ratio between the second shaft and the input shaft;

    a third gearing arrangement configured to selectively impose a plurality of fixed speed ratios between the first shaft and the input shaft; and

    a first brake configured to selectively hold the third shaft against rotation.

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