| 摘要 |
In order to fold folded products having sealing flaps with or without mating flaps, such as packaging bags including envelopes with or without self-adhesive glue, the envelopes are moved against a stationary stop and the mating flaps and the sealing flaps are then turned over by suction elements arranged on a mating flap roll and on a sealing flap roll. The mating flap roll, which bears the suction element that turns the mating flaps over, has a radius that is reduced on a part of the roll's circumference that is not equipped with the suction element. The mating flap roll can be locked in such a rotational position, that a folded product not having a mating flap can be moved past this roll to the stationary stop without contacting or virtually without contacting this roll.
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