PROBLEM TO BE SOLVED: To provide a revolving drum having a novel assembly structure in which a core and a flange are separated.SOLUTION: In a revolving drum 1 utilized as a mechanical element for generating rotary motion using a shaft core of a core 2 as a rotation center, the core 2 and a pair of flanges 3 are formed separately, and a fitting part 32 having an outer edge shape capable of internally-fitting the end part of the core 2 is provided on the flanges 3 so that both end parts of the core 2 are reinforced, when connecting the flanges 3 to both ends of the core 2 respectively.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】コアとフランジとが別体となされた新規な組み立て構造を有する回転ドラムを提供する。【解決手段】コア2の軸芯を回転中心とした回転運動を行わせる機械要素として利用される回転ドラム1において、コア2と、一対のフランジ3と、を別体として形成し、コア2の両端各々に前記フランジ3を連結させた際、コア2の両端部が補強されるように、フランジ3に、コア2の端部に内篏合し得る外縁形状を有する嵌め込み部32を設ける。【選択図】図1
