Patent ID: 7047711

Claim:
Device ( 11 ) for the automatic inserting of printed products or sheets ( 12 ) into individual envelopes ( 13 ), feeders for feeding individual printed products or sheets ( 12 ), a storage container ( 16 ) for storing envelopes equipped with at least one gripping element ( 17 , 18 , 19 ), which grips and feeds a single envelope ( 13 ) between a first upper conveyor belt ( 20 ) and a first lower conveyor belt ( 21 ) facing each other to define a feeding group of the envelope ( 13 ) towards the inserting of products into envelopes zone, a second upper conveyor belt ( 15 ) and a second lower conveyor belt ( 14 ) facing each other to advance said printed products or sheets ( 12 ) one after the other, a nozzle ( 22 ) being associated with said first conveyor belts ( 20 , 21 ) for opening and flipping back a tab ( 24 ) of the individual envelopes ( 13 ) taken out from the storage container ( 16 ), means for moving the downstream end ( 37 ) of said second lower conveyor belt ( 14 ) forwards and backwards over said tab and with respect to a sucked conveyor belt ( 35 ) aligned downstream of said second lower conveyor belt ( 14 ) to define an opening ( 38 ) of variable size between said end and said sucked conveyor belt, a gripping element ( 39 ) of said tab ( 24 ) at said opening at an initial portion of said sucked conveyor belt ( 35 ), a further gripping element ( 40 ) of a mouth of said envelope ( 13 ) locked onto said sucked conveyor belt ( 35 ) and mobile introducing elements ( 45 ) movable inserted over said tab ( 24 ) and inside said mouth of the envelope.