Device for opening envelopes

Abstract

Abstract One embodiment comprises: … …  - a first and a second drive rollers (50, 51) and a chute (4) for feeding in an envelope to be opened (1, 2); …  - a third drive roller (11) driving the body (1) of the envelope in a direction (13) parallel to the fold (8) connecting the flap (2) to the body (1) of the envelope, which it does by rolling over the opposite side to that where the flap of the envelope is folded, without rolling over the area close to the fold (8); …  - a counter-roller (12) situated opposite to the drive roller (11), rolling over the side where the flap is folded, without rolling over the flap (2); …  - an idle roller (5) situated opposite the drive roller (11) and having a narrow edge (6, 7) which rolls upon the flap (2) close to the fold (8) connecting the flap (2) to the body (1) of the envelope, and which penetrates inside the cylindrical volume defined by the straight generatrices of the third drive roller (11), so as to bend the body (1) around an axis lying approximately parallel to the fold (8); …  - a freely rotating cone (20) for separating the flap (2) from the body (1) by inserting itself into the space created by the bending; and …  - guides (30, 31) for leading an envelope away while keeping it open. … …<??>Application to mail processing machines. …<IMAGE>…

Inventors

• 👤 Gérard Dimur
• 👤 Jean-Claude Haroutel

Bibliographic Details