| 摘要 |
<p>The present invention relates to an releasable automatic rotation door for a showcase comprising: multiple rotation curtains (30); a finish cap (40) fitted to upper portions of the rotation curtains (30); a fitting protrusion (41) mounted at the center of the finish cap (40); a driving gear (50) mounted on the fitting protrusion (41); a finish cap (40) fitted to lower portions of the rotation curtains (30); an upper frame (20) having multiple fitting holes (23) formed in a row, the rotation curtains (30) being assembled to the fitting holes (23) via fitting protrusions (41) of the finish cap (40) fitted to the upper portions; driving gears (50) mounted on the fitting protrusions (41) and positioned on the upper surface of the upper frame (20) in a row; both gear belts (60a) alternately meshing, in a wavy shape, above and below the multiple driving gears (50) installed in a row; a driving motor (63) installed inside the upper frame (20), the motor having a shaft connected to one driving gear (50) of the multiple driving gears (50), thereby endowing both gear belts (60a) with rotational force; a cover (26) mounted above the upper frame (20), a sensor (80) being mounted on the cover (26), wherein, as the driving motor (63) is activated in response to a sensing signal of the sensor (80), both gear belts (60a) simultaneously rotate the driving gears (50), which are mounted on the upper portions of the rotation curtains (30), in opposite directions, thereby opening/closing the rotation curtains (30) in opposite directions.</p> |
