BALLOON HAVING SEVERAL SMALL RUBBER BALLOONS INSERTED INTO RUBBER BALLOON AND BALLOON HAVING SEVERAL DOUBLE SMALL RUBBER BALLOONS INSERTED INTO RUBBER BALLOON

摘要

PROBLEM TO BE SOLVED: To provide a rubber balloon into which a plurality of small rubber balloons are easily inserted, and a manufacturing method thereof.;SOLUTION: When a small balloon is inserted into a rubber balloon, an air insertion hole is long and the part expands, so that the small balloon can not easily be inserted. In such a case, by rolling the air insertion hole part of the rubber balloon into the outer side, a plurality of small balloons can be inserted directly.;COPYRIGHT: (C)2006,JPO&NCIPI