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HINGE

  • US 20080034545A1
  • Filed: 07/24/2006
  • Published: 02/14/2008
  • Est. Priority Date: 07/24/2006
  • Status: Active Grant
First Claim
Patent Images

1. A hinge comprisinga mounting bracket havinga top;

  • a bottom;

    a mounting hole being defined through the mounting bracket and having a rim and a diameter; and

    two limits being formed on and protruding from the top of the mounting bracket outside the mounting hole at an determined angular separation;

    a hinge assembly being made of malleable metal, being mounted rotatably through the mounting bracket and havinga top;

    a bottom;

    at least one pintle being formed transversely at the top of the hinge assembly;

    at least one leaf being rotatably mounted on the at least one pintle; and

    a rotatable base being formed on the bottom of the hinge assembly, being mounted rotatably in the mounting bracket and havinga diameter being larger than the diameter of the mounting hole;

    a bottom; and

    a mounting cylinder being formed coaxially on and protruding down from the bottom of the rotatable base, being mounted rotatably in the mounting hole in the mounting bracket and havingan outer diameter being smaller than the diameter of the mounting hole in the mounting bracket;

    a top end;

    a bottom end;

    an outer surface;

    multiple slots being defined radially at intervals in the outer surface of the mounting cylinder, and each slot having  

    a bottom end communicating with the bottom end of the mounting cylinder; and



    a top end; and

    an annular recess being defined around the outer surface of the mounting cylinder between the top ends of the slots and the bottom of the rotatable base;

    a limit and positioning element being resilient and being mounted securely around the mounting cylinder and slidably against the top of the mounting bracket in the annular recess and havingan outer edge;

    a central hole being mounted around the mounting cylinder;

    an inner edge;

    multiple tabs being formed on and protruding in from the inner edge of the limit and positioning element and corresponding respectively to and being mounted respectively in the slots in the mounting cylinder; and

    a stop being formed on and protruding radially out from the outer edge of the limit and positioning element and rotating between and abutting the two limits;

    a bushing assembly being mounted securely around the mounting cylinder, against the limit and positioning element and slidably against the rim of the mounting hole in the mounting bracket to keep the mounting cylinder from rubbing against the mounting bracket and comprising at least one plastic washer, each havinga smooth outer edge slidably abutting the rim of the mounting hole through the mounting bracket;

    an inner edge; and

    multiple tabs being formed on and protruding in from the inner edge and corresponding respectively to and being mounted respectively in the slots in the mounting cylinder;

    a supplementary positioning element being resilient and being mounted securely around the mounting cylinder and slidably against the bottom of the mounting bracket and havinga central hole being mounted around the mounting cylinder;

    an inner edge; and

    multiple tabs being formed on and protruding in from the inner edge and corresponding respectively to and being mounted respectively in the slots of the mounting cylinder; and

    an end cap being connected securely to the bottom of the mounting cylinder of the rotatable base, holding the hinge assembly rotatably in the mounting hole in the mounting bracket and havinga diameter larger than the diameter of the mounting hole.

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