| 摘要 |
PURPOSE:To reduce the number of constitutional parts, and reduce the costs of fabrication or material by enlarging a pair of mold cavities so as to mold a hollow molding, and incorporating a plurality of partitions in a manner capable of coming in and out in a mold at an impulsion side so that they constitute a partition wall of an X-shaped, +-shaped, or T-shaped crossing. CONSTITUTION:On the place positioned under the leg parts of a television set and subjected to loads, hollow parts 23 having a small volume are arranged, and on the place not subjected to loads directly, hollow parts 22 having a large volume is arranged in a predetermined symmetric form of crossing partitions 24. In this case, by arranging symmetrically three kinds of hollow parts being different in size, the roof 21 is reduced in its weight. The total occupied volume of the hollow parts is made 20-90% of the volume occupied by the outer shape of the roof 21 and resin material used herein can thus be saved, and the cost can also be reduced. |
