| 摘要 |
PROBLEM TO BE SOLVED: To prevent the lowering of the bonding strength of the respective layers of a synthetic resin sheet even if the thickness of the synthetic resin sheet becomes less than a predetermined thickness. SOLUTION: A molding apparatus has a pressure member 10, which protrudes toward the pressure holding surface 6b among the pressure holding surfaces 6b, 7b by a predetermined energizing force, provided in the pressure holding surface 7b. By this constitution, even if the thickness of a synthetic resin sheet 1 becomes less than a predetermined thickness, strong pressure can be applied to a plurality of layers by the pressure member 10 and the respective layers bite in mutually to obtain a sufficient bonding strength.
|
