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Appliance door hinge

  • US 4,817,240 A
  • Filed: 06/03/1983
  • Issued: 04/04/1989
  • Est. Priority Date: 06/03/1983
  • Status: Expired due to Fees
First Claim
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1. A self-contained hinge assembly for a range door comprising:

  • a frame bracket having a body portion adapted to be mounted within a housing of a range or similar appliance and a hinge flange having an outer portion adapted to project outwardly from the housing;

    a one-piece rigid hinge arm having a door-attaching portion adapted to be rigidly mounted to a door mounted exterior to the housing and a cam arm adapted to project into said housing, the cam arm having a cam surface with a first and second end;

    means pivotably mounting the hinge arm to the outer portion of the frame bracket hinge flange for pivotable movement of the door about the pivotable mounting means, the hinge arm being movable between a first position at which the door will be closed and a second position at which the door will be substantially perpendicular to the housing;

    a cam follower arm having a cam follower element thereon;

    means for pivotably mounting the cam follower arm to the frame bracket body portion so that the cam follower arm bears against the cam surface between the first and second ends thereof and so as to produce a counterbalancing moment on the hinge arm at all positions between the first and second ends; and

    means acting between the frame bracket and the cam follower arm for biasing said cam follower arm in a direction to force the cam follower element against the cam follower cam surface so as to counterbalance the weight of the door between the first and second positions.

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