DEVICES FOR AUTOMATIC ENVELOPES AND PACKAGES

摘要

The invention concerns a rip cord device for opening envelopes characterised in that it comprises a rip cord alpha in the opening edge fold psi inside the envelope, and whereof the exceeding end on the left eta ' is folded back along the edge adjacent to the opening edge, where it is maintained by the clip gamma . The right side end eta is folded back in a sleeve aranged between the material constituting the envelope and a local lining omicron . The material constituting the envelope located above omicron is cut out to reveal the part eta of the rip cord through an opening delta so that the user the user can grasp it. The user extracts the part eta of the rip cord from its sleeve through the opening delta before puling it to cut the opening edge psi and remove the envelope content through the resulting slit.