Post card, has fixing unit arranged so that passage of flap between free position, where writing area is accessible and secret position, where area is hidden is obtained by its rotation in plane linked to support around fixed axis

摘要

The post card (1) has a movable flap (3) joined to a support (2) by a fixing unit (4) e.g. rivet. The unit is set to displace the flap between a free position, where a writing area (6) is accessible and a secret position, where the area is hidden. The fixing unit is arranged so that the passage of the flap between the positions is obtained by its rotation in a plane connected to the support around a fixed axis A.