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Dual-shaft synchronous motion device

  • US 8,959,714 B2
  • Filed: 06/06/2013
  • Issued: 02/24/2015
  • Est. Priority Date: 02/08/2013
  • Status: Active Grant
First Claim
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1. A dual-shaft synchronous motion device, comprising:

  • a first shaft (10) and a second shaft (20), the first shaft (10) and the second shaft (20) respectively having a fixed end (10a, 20a) and a pivot end (10b, 20b);

    a first rotor (11) and a third rotor (33) disposed on the first shaft (10) and turned synchronously;

    a second rotor (22) and a fourth rotor (44) disposed on the second shaft (20) and turned synchronously;

    a first tractive member (50) disposed between the first rotor (11) and the second rotor (22); and

    a second tractive member (60) disposed between the third rotor (33) and the fourth rotor (44);

    the first and second tractive members (50, 60) respectively link the first shaft (10) and the second shaft (20) to turn synchronously in opposite directions;

    wherein the first, second, third and fourth rotors (11, 22, 33, 44) are in the form of a roller and each have a cylindrical main body (a) and a shoulder portion (b) formed at two ends of the main body (a).

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