| 摘要 |
PURPOSE:To reduce the level of force required for assembly, ensure an accurate positioning after the insertion and prevent a gap from occurring between the contact surface and cooking chamber wall by causing a detachment inhibitor hook which is protruding outwardly from the rim of a through-hole disposed in the cooking chamber wall to engage with a groove in a detachment inhibitor snap after the shelf support is fixed. CONSTITUTION:A detachment inhibitor snap 6 is extending rearwardly from the contact surface 7 of a shelf support 3. The detachment inhibitor snap 6 has a groove 14. The snap 6 also has a semicircular-sectioned protrusion 15 for locking the rotation. As the snap 6 of the shelf support 3 passes a through- hole 5, a detachment inhibitor hook 16 is resiliently deformed to be opened outwardly, but it engages with a groove 14 in the snap 6 upon the snap has passed through. This way, the positioning can be made positively as the hook 16 is engaged with the groove 14. Further, even if foods are stacked on the shelf, a gap will not develop between the contact surface 7 and the cooking chamber wall 4, preventing small pieces of foodstuff from getting in there, because the hook 16 and snap 6 do not resiliently deform.
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