Door closer mechanism for display case

摘要

A display case includes a housing partially surrounding a display space, a door pivotably coupled to the housing and cooperating with the housing to further enclose the display space, and a hinge assembly for pivotably coupling the door to the housing. The hinge assembly includes a biasing member applying a biasing force on the door and a gear drive for adjusting a pre-tension force on the biasing member.

主权项

1. A hinge assembly attached to 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; and 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, wherein the shell, the spring, the first gear, and the second gear are disposed completely outside of the door and a portion of the pin is received by the door to facilitate movement of the door with respect to the shell.