Opening device, a method of manufacturing and packaging containers bearing the said opening devices

摘要

1. Opening device (100) for a packaging container (112) containing two functional parts, a supporting portion (104) and the membrane portion (102), providing reliable sealing of the packaging container (112) and providing strength to the opening device, characterized in that a membrane portion of the membrane portion (102) is mechanically attached (106/108) to the supporting portion (104) through at least one opening (108) in the supporting portion to function as a single piece during opening of the packaging container ( 112), wherein the material of the membrane portion (102) is thermally compatible with the material of the supporting portion (104) so ​​as to avoid fusion bonding compound or between two functional units during manufacture of the opening ustroystva.2. Opening device according to claim 1, wherein the membrane portion extends through at least one opening (108) of the supporting portion (104) and in which either the membrane portion has dimensions on both sides of said at least one opening exceeding the dimensions of said at least one opening, libopo least one opening has a conical cross sechenie.3. Opening device according to any one of the preceding claims, wherein the membrane portion comprises a membrane portion on one side of the supporting portion and the actuating portion in place on the opposite side of the support chasti.4. Opening device according to claim 1, wherein the supporting portion comprises a driving portion deystvie.5. Opening device according to claim 1, wherein the membrane portion comprises a structural weakening arranged possibility