To enhance an efficiency of manufacturing a pneumatic pouch 1 by shortening a manufacturing time of the pneumatic pouch 1.
The manufacturing method includes a step of making a group of restriction members 21 to coalesce with a shaping drum 11 and enveloping a tube 3 and a reinforcement layer 9 in cooperation with the group of the restriction members 21 and the shaping drum 11, and a step of expanding the tube 3 and joining the reinforcement layer 9 to the outer circumferential surface of the tube 3 by filling air from an air supply source 15 into the tube 3 via an air introduction hole 13 and an air filling valve 5 while the air filling valve 5 being airtightly connected to the air introduction hole 13 and held there by adsorption force of an electromagnet 19 in the shaping drum 11.
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu