Patent Number: 6,569,074

Title: Apparatus for folding folded products such as mailing bags and envelopes

Abstract: In order to fold folded products having sealing flaps with or withoutmating flaps, such as packaging bags including envelopes with or withoutself-adhesive glue, the envelopes are moved against a stationary stop andthe mating flaps and the sealing flaps are then turned over by suctionelements arranged on a mating flap roll and on a sealing flap roll. Themating flap roll, which bears the suction element that turns the matingflaps over, has a radius that is reduced on a part of the roll'scircumference that is not equipped with the suction element. The matingflap roll can be locked in such a rotational position, that a foldedproduct not having a mating flap can be moved past this roll to thestationary stop without contacting or virtually without contacting thisroll.

Inventors: Bluemle; Martin (Horhausen, DE)


International Classification: B31B 19/00 (20060101); B31B 001/56 ()

Expiration Date: 05/22015