| 摘要 |
PROBLEM TO BE SOLVED: To safely execute a maintenance work of a display device by improv ing metallic hinge fixtures so as to automatically lock and hold a display door at a half-opened or full-opened position at the time of opening the door. SOLUTION: The single swing display door 10 arranged at the back surface side of a merchandise sample exhibition display chamber which is partitioned at the external door of a cabinet is connected to an external door 2 through the metallic hinge fixtures 12. In the configuration, the metallic hinge fixtures 12 consists of the assembling body of a lower metallic crossarm 12a fixed to the external door, an upper metallic crossarm 12b fixed to the display door and a hinge pin 12c put through over both the metallic crossarms. A recessed part 12a-1 corresponding to the respective lock positions of the display door is formed on the upper end surface of a curling part of the lower metallic crossarm among the vertically superimposed crossarms, a projected part 12b-1 is formed on the lower end surface of the curling part of the upper metallic crossarm to face the recessed part, the projected part is fitted to the recessed part at the open position of the display door and the display door is automatically locked and held at the position.
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