| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce production cost by unifying component parts of a product, as there is a problematic point that the production cost has been increasing, because fixed work for a plurality of component parts has become necessary; in addition to the necessity of the plurality of component parts; which is attributable to the fact the gridiron of a toaster oven includes a reticulation part and a frame part composed of a plurality of components, because the gridiron of a toaster oven is formed by fixing the frame part to the periphery of the reticulation part for integration. <P>SOLUTION: The gridiron is characterized by including a reticulation part including mesh formed by the press working of metal plate without the periphery portion, and an edge winding-up part formed by the edge winding-up work (curling work) on the periphery part of the reticulation part. Furthermore, the second invention of the present application is characterized by including a lock protrusion formed by bending the peripheral edge extension of the metal plate downward. <P>COPYRIGHT: (C)2013,JPO&INPIT |
