Patent ID: 8627869

Claim:
A melt bonding device which intermittently seals a multilayer belt-shaped worked sheet, characterized in that said melt bonding device is provided with a facing press and anvil and stoppers for preventing lifting of the worked sheet, said worked sheet passes between said press and said anvil, said press moves from an upward position downward to press said worked sheet from its top side so as to seal said worked sheet, then moves upward, said anvil supports said worked sheet from a bottom side when said worked sheet is being sealed, said preventive stoppers are comprised of two stoppers, said two stoppers both arranged near said press and above said worked sheet at a predetermined space from said worked sheet, one of said stoppers arranged at an upstream side from said press and the other of said stoppers arranged at a downstream side from said press, and, when said press seals said worked sheet and then moves upward, said preventive stoppers prevent said worked sheet from being lifted up.