| 摘要 |
PURPOSE:To provide an apparatus which can brush uniformly the inner faces of ceramic products having various shapes and sizes. CONSTITUTION:A plurality of arms 8 are attached to the tip of a rotary shaft 3 to be inserted in the inside of a ceramic product l and brushing parts 9 are installed in the tip of each arm 8. When the rotary shaft 3 is rotated, due to the centrifugal force, the arms 8 are spread and the brushing parts 9 are brought into contact with the inner face of the ceramic product l and thus adhering substances are removed. |
