| 摘要 |
PURPOSE:To enable the titled equipment to obtain a favorable vacuous state in an external circumferential space of a molding tool at the time of molding, by a method wherein the top of a pressurizing member confronting with the bottom of the molding tool is made changeable between a clamping position where the top comes into contact with the bottom through a seal ring and a breaking position which is at the lower part of the clamping position. CONSTITUTION:The top 3d of a pressurizing member 3 confronting with the bottom of a molding tool 4, that is, the bottom 4c of a bottom force fitting plate 4b is provided with a seal ring 13 such as an O ring and other of the external circumference. The top 3d is so constituted that it is changeable between a clamping position where the top 3d comes into contact with the bottom 4c through a ring 13 and a breaking position which is isolated from the lower part of the clamping position. When the top 3d is located at a clamped position which has come into contact with the bottom 4c through the ring 13 and the pressurizing member 3 is moved upward further, the top 3d and bottom 4c are bonded with each other prior to molding through the ring 13. Then a pinhole 12 to be formed on a bottom force 4b is made into a state where the undersurface of the same is closed in an airtight state and it follow that communication of a space 8 of the inside of a surrounding frame 7 with the open air through the pinhole 12 is disconnected and the space is obtained into a favorable vacuous state. |
