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Hinge mechanism

  • US 8,474,101 B2
  • Filed: 12/25/2010
  • Issued: 07/02/2013
  • Est. Priority Date: 08/18/2010
  • Status: Expired due to Fees
First Claim
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1. A hinge mechanism, comprising:

  • two pivot shafts substantially parallel to each other;

    a bracket rotatably mounted around the two pivot shafts;

    two main gears non-rotatably sleeved on the two pivot shafts, respectively;

    a transmission assembly mounted on the bracket and positioned between the two pivot shafts to transmit a torque of one of the two main gears to the other in a reverse direction, wherein the transmission assembly comprises two connecting shafts and two transmission gears respectively rotatably mounted around the two connecting shafts, the two transmission gears are respectively engaged with the two main gears, each of the two connecting shafts comprises a first end having a non-circular cross section and a second end having a substantially circular cross section, the first end is non-rotatably connected to the bracket, and the second end is rotatably mounted to one of the two transmission gears;

    a connecting member defining two shaft holes, wherein the pivot shafts are respectively rotatably received in the shaft holes; and

    two contact assemblies respectively mounted on the pivot shafts and abutting the connecting member;

    wherein one of the connecting member and each main gear forms at least one detent, and the other one of the connecting member and each main gear defines at least one recess correspondingly, the at least one detent is engagably received in the at least one recess.

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