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Hinge for a notebook extension pad

  • US 7,584,524 B2
  • Filed: 07/25/2007
  • Issued: 09/08/2009
  • Est. Priority Date: 07/25/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A hinge for a notebook extension pad comprisinga pivoting assembly havingan inner end;

  • an outer end;

    a mounting leaf being formed on and extending from the outer end of the pivoting assembly; and

    a shaft being keyed, being formed on and extending from the inner end of the pivoting assembly and having a distal end;

    a positioning disk being mounted coaxially and securely around the shaft and havingan inner surface;

    a keyed hole being formed through the positioning disk and corresponding to and engaging the shaft; and

    at least one positioning protrusion being formed on and protruding from the inner surface of the positioning disk;

    a limiting stationary leaf being rotatably mounted coaxially around the shaft, being adjacent to the inner surface of the positioning disk and havingan edge;

    an inner surface;

    a pivoting hole being round, being formed coaxially through the limiting stationary leaf and being mounted around the shaft;

    multiple detents being formed separately in edge of the limiting stationary leaf and corresponding respectively to and selectively engaging the positioning protrusion;

    a mounting protrusion being formed on and extending from the edge of the limiting stationary leaf; and

    a boss being formed on and protruding from the inner surface of the limiting stationary leaf;

    a limiting disk being mounted coaxially securely around the shaft, being adjacent to the inner surface of the limiting stationary leaf and havingan inner surface;

    an edge;

    a keyed hole being formed coaxially through the limiting disk and corresponding to and being mounted around the shaft; and

    a limit being formed radially on and protruding from the edge of the limiting disk, corresponding to and selectively abutting the boss;

    a pressing assembly being mounted coaxially around the distal end of the shaft, being adjacent to the inner surface of the limiting disk and pressing the limiting disk; and

    a locking assembly being mounted around the distal end of the shaft being adjacent to the pressing assembly and havinga sliding lock being movably mounted coaxially around the distal end of the shaft and havingan outside wall being circular in cross section;

    an inner surface;

    an outer surface;

    a through hole being keyed corresponding to the shaft, being formed coaxially through the sliding lock and being mounted slidably around the distal end of the shaft;

    a flange being formed radially around and extending from the outside wall of the sliding lock at the outer surface and having an inner surface and an outer surface;

    a positioning stopper being formed on an protruding from the flange;

    a mounting segment being formed on and protruding from the inner surface of the sliding lock and having an annular end edge; and

    at least one mounting protrusion protruding radially from the mounting segment and being adjacent to the annular end edge of the mounting segment;

    a lock ring being rotatably mounted coaxially around the mounting segment and havingan edge;

    a rotating hole being formed coaxially through the lock ring and having an inner wall; and

    a handle being formed radially on and protruding from the edge of the lock ring; and

    a locking stationary leaf being mounted rotatably around the shaft, securely to the mounting protrusion of the limiting stationary leaf and havingan edge;

    a pivoting hole being round and formed through the locking stationary leaf;

    a limiting mounting protrusion being formed radially on the edge of the locking stationary leaf and protruding transversely toward and attaching to the mounting protrusion of the limiting stationary leaf;

    a retaining bar being formed on the limiting mounting protrusion, and protruding transversely away from the mounting protrusion of the limiting stationary leaf, corresponding to and selectively abutting the handle and selectively reaching to the handle; and

    at least one locking detent being formed in the locking stationary leaf, corresponding to the at least one positioning stopper and selectively engaging the positioning stopper.

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