PROBLEM TO BE SOLVED: To solve problems, for example, there is a salient on part of a metal gauze trunk, so that a position where a metal gauze is overlapped is different and a gap between the metal gauze trunk and a tip end of an agitation feather does not become uniform by rotation of the metal gauze trunk, especially, a hit pressure effect of the agitation feather, and an agitation effect are required more, so that as the gap between the metal gauze trunk and the agitation feather becomes smaller, an error of the gap has affection, and a rotation state of the metal gauze trunk causes change of the gap.SOLUTION: First means of the invention makes the metal gauze trunk of the tea manufacturing steamer for processing tea leaves by steam heat processing into a complete round shape.COPYRIGHT: (C)2015,JPO&INPIT【課題】金網胴の一部に凸部があるため、金網胴の回転によって、金網を重ねた部分の位置が異なり、金網胴と撹拌羽根の先端との隙間が均一にならなかった。特に、撹拌羽根の打圧効果、撹拌効果をより多く求めるために、金網胴と撹拌羽の先端との隙間を少なくすればするほど、隙間の誤差が影響を及ぼす。金網胴の回転具合により、隙間が変わってしまう。【解決手段】本発明の第1手段は、茶葉を蒸熱処理する製茶蒸機の金網胴を真円にする。【選択図】図1
