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Hinge assembly for foldable electronic device

  • US 8,245,354 B2
  • Filed: 11/02/2009
  • Issued: 08/21/2012
  • Est. Priority Date: 09/24/2009
  • Status: Expired due to Fees
First Claim
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1. A hinge assembly for connecting a cover and a main body of a foldable electronic device, comprising:

  • a shaft;

    a follower disposed on the shaft, one end of the follower having a first cam surface, the first cam surface defining a groove;

    a cam mounted on the shaft and adjacent to the follower, the cam having a second cam surface, the second cam surface engaging with the first cam surface, the second cam surface forming a protrusion, the protrusion being received in the groove; and

    a resilient member placed around the shaft forcing the first cam surface against the second cam surface;

    wherein when the follower rotates 180 degrees relative to the cam, the protrusion of the cam causes the cam to rotate beyond 180 degrees relative to the follower.

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