DOUBLE-CYLINDRICAL CONTAINER

摘要

PROBLEM TO BE SOLVED: To prevent a paper case from coming out without using an adhesive or the like in a double-cylindrical container comprising the paper case fitted over an external face of a barrel of a thin synthetic resin container body having a barrel of a polygonal lateral cross section. SOLUTION: A recess 5 is provided at upper and lower parts on an external face of a container barrel. Upward and downward flappers 23 formed by a cutting line 22 in a recess-shape are brought into contact with outer portions of the recess 5 of a paper case 21 fitted over an external face of the barrel with a tip of the upward flapper in contact with a depth of a recess top plate and with a tip of the downward flapper in contact with a depth of a recess bottom plate 6. A part of a side rim of the flappers is engaged with an inner side of a protrusion 11 provided on a wall face with the recesses 5 formed.