Door closer mechanism for display case

A display case comprising:

• a main housing partially enclosing a display space and defining an opening;
• a support member fixedly coupled to the main housing;
• a second housing including a first gear, the second housing coupled to the support member;
• a second gear supported for rotation by the support member and in meshing relationship with the first gear, rotation of the second gear producing a corresponding rotation of the first gear and the second housing;
• a door pin defining a door axis, the door pin supported for rotation about the door axis by the second housing;
• a biasing member connected to the door pin and the second housing and operable to provide a biasing force to the door pin, the biasing force being adjusted in response to the rotation of the second housing;
• and
• a door coupled to the door pin for co-rotation therewith, wherein the biasing force biases the door toward a closed position.

A hinge assembly for a door of a display case, the hinge assembly comprising:

• a pin for supporting the door, the pin defining a pivot axis;
• a shell including a bore receiving at least a portion of the pin, the shell being movable relative to the pin;
• a spring coupled between the pin and the shell, the spring member exerting a biasing force on the pin about the pivot axis;
• a first gear secured to the shell;
• a second gear engaging the first gear, rotation of the second gear causing the shell to pivot relative to the pin, thereby changing the biasing force exerted by the spring member.