| 摘要 |
The invention relates to a stacking device for flat postal items standing on edge. The stacking device comprises guide means for guiding the postal items supplied to it to a stacking position on a stacking base against a support wall on which the postal items are slowed down. Of course the present invention may apply to other types of articles as well. The stacking device is further provided with a stacker plate that can be displaced in the direction of stacking along a linear guide. The stacker plate cooperates with a spring element to produce a pressure force that is approximately constant across the zone of displacement and that is directed against the forming stack. The movable part of a damper element is fastened on the movable part of the spring element, said damper element being only active when a displacement directed away from the stacking position is exerted. If the spring element is configured as a constant force spring wound up on a coil, a oration damper is fastened on the coil that is effective only in the case of an unwinding movement in such a manner that the rotating parts and the stationary parts are interlinked.
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