| 摘要 |
PURPOSE: A three-step control toilet seat manufacturing a toilet seat is provided to select the size within the toilet seat in miniature, and the middle sized or the large size and offer the opportunity of selection to the children, and old and feeble person and foreigner. CONSTITUTION: A toilet cover mold of the other size is inserted within the toilet seat in three stages. The three-step control toilet seat increases convenience. The three-step control toilet seat is formed with a mold member of the predetermined section shape. The toilet seat is manufactured. A predetermined cross-sectional shape is lay between the toilet coverts. A mold member-overlapped toilet cover lying one upon another the pattern member is combined with the vibration welding. |
