| 摘要 |
PURPOSE: A structure of a lid for an electrical pressure rice cooker is provided, to prevent the generation of metal bits. CONSTITUTION: A structure of a cover comprises an outer cover (11) which is bound to the body part (1) of an electrical pressure rice cooker; an inner cover (12) which supports individual structure constituting a cover part (3); an inner lid (13) which is fixed by the inner cover (12) and covers the upper part of the inner oven (2); a pressure control part (14) which penetrates the outer side of the outer cover (11) and the inner side of the inner lid (13) and controls the pressure of the inner oven (2); a ring (15) which engages the inner lid (13) and the inner oven (2) by rotation; a packing (16) which sieves the gap between the inner lid (13) and the inner oven (2); a ring driving part (17) which drives the ring (15) when the inner lid (13) and the inner oven (2) are engaged; a plurality of grooves which are formed in the region contacted with the ring (15) at regular intervals to reduce the friction between the inner lid (13) and the ring (15); and a bearing (18) which is set in the individual groove.
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