ROTARY RING FOR MICROWAVE OVEN BY MINIMIZING CONTACT PART OF ROLLER AND BOTTOM SIDE OF COOKING CHAMBER BY RECESSING BOTTOM SIDE OF ROLLER

摘要

PURPOSE: A rotary ring for a microwave oven is provided to maximally prevent noise caused by rolling motions of a roller regardless of bottom conditions of a cooking chamber by minimizing a contact part of the roller and the bottom side of the cooking chamber by recessing the bottom side of the roller. CONSTITUTION: A rotary ring for a microwave oven is composed of a circular ring(310) for supporting rotation of a microwave oven tray; a plurality of roller shafts(310a) extending outward from the ring and having hanging units(310b) at the ends; and a roller assembly(400) inserted into the roller shaft and formed with a roller(410) having the center of a circumferential surface that is entirely recessed. The roller assembly comprises the roller inserted into the roller shaft of the rotary ring; a bush(430) passing through the central part of the roller; and a washer(450) fitted into the end of the bush to prevent the roller from being separated.