Patent ID: 8657149

Claim:
A thin-walled packaging device comprising: a packaging sheath for repeatable use, said packaging sheath having a plug-in collar with a rim that defines an opening in said packaging sheath, and a snap-in closure that is insertable into the opening of said plug-in collar to releasably close the opening of the plug-in collar of said packaging sheath, said snap-in closure having a form-shaping support part that includes at least one longitudinal rib that is connected to a plurality of transverse ribs, said form-shaping support part defining a guide-in gradient surface, said guide-in gradient surface cooperating with an inner wall of said snap-in closure to define an insertion opening that has a terminal end and a lower region that is located oppositely from said terminal end, said guide-in surface expanding outwardly from the lower region of said insertion opening to the terminal end of said insertion opening such that said form-shaping support part contacts the plug-in collar and urges the plug-in collar outwardly toward the inner wall of the snap-in closure at times when said form-shaping support part is inserted into the opening of said plug-in collar and the rim of said plug-in collar is advanced toward the terminal end of said insertion opening, said form-shaping support part being composed of a material that is harder than the material that composes said packaging sheath.