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Adjustable pivot assist mechanism for an enclosure door of a display case

  • US 8,292,376 B1
  • Filed: 01/27/2010
  • Issued: 10/23/2012
  • Est. Priority Date: 01/27/2010
  • Status: Expired due to Fees
First Claim
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1. A lift system for a panel on a structure for an enclosure for merchandising, comprising:

  • a structure for one or more of a temperature-controlled enclosure and a display for merchandising;

    a hinge mechanism attached to the structure;

    a panel attached to the hinge mechanism and moveable about an axis of the hinge mechanism relative to the structure, and being subject to a force of gravity biasing the panel toward a first position relative to the structure; and

    a lift mechanism attached to the structure and the panel for providing a force on the panel causing the panel to be biased toward a second position relative to the structure; and

    wherein the lift mechanism comprises;

    a first gas spring having a first end and having a second end;

    a bellcrank mechanism mounted on the structure and rotatable about an axis, and having a first connection point at a first distance from the axis and attached to the second end of the gas spring and having a second connection point at a second distance from the axis;

    a force transfer link having a first end attached to the second connection point of the bellcrank mechanism, and having a second end connected to a third connection point on the panel;

    a length of the force transfer link is adjustable;

    movement of the second end of the gas spring relative to the structure results in movement of the panel relative to the structure; and

    movement of one or more ends of the gas spring is two-dimensional.

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