Stacking device for flat stackable elements

Abstract

A stacking device includes a movable stacking wall and a further stacking wall between which flat stackable elements are adapted to be stacked. An impact wall defines the path of insertion for a stackable element newly introduced between the stacking walls. The movable stacking wall is impinged by a restoring element with a restoring force in the direction of the further stacking wall. A braking element partially converts the kinetic energy of the movable stacking wall to thermal energy independent of the position thereof.

1 . A stacking device for flat stackable elements ( 3 ,  4 ), having a movable and a further stacking wall ( 1 ,  2 ) between which the stackable elements ( 3 ,  4 ) can be stacked, and an impact wall ( 5 ), by means of which a path of insertion for a stackable element ( 4 ) newly introduced between the stacking walls ( 1 ,  2 ) is defined, the movable stacking wall ( 1 ) being acted upon by means of a restoring element ( 6 ) with a restoring force (F) in the direction of the further stacking wall ( 2 ), characterized in that the movable stacking wall ( 1 ) is assigned a braking element ( 6 ), by means of which kinetic energy of the movable stacking wall ( 1 ) can be partially converted into thermal energy irrespective of the position of said wall.  
     
     
         2 . The stacking device as claimed in  claim 1 , characterized in that the braking element ( 6 ) is designed in such a manner that the kinetic energy of the movable stacking wall ( 1 ) can essentially be converted into thermal energy only if it moves away from the further stacking wall ( 2 ).  
     
     
         3 . The stacking device as claimed in  claim 1  or  2 , characterized in that the braking element ( 6 ) is designed in such a manner that the amount of kinetic energy of the movable stacking wall ( 1 ) that is converted into thermal energy increases with increasing acceleration of the movable stacking wall ( 1 ).  
     
     
         4 . The stacking device as claimed in  claim 1 ,  2  or  3 , characterized in that the movable and the further stacking wall ( 1 ,  2 ) form an opening angle (α) of between 0° and 30°.  
     
     
         5 . The stacking device as claimed in one of the above claims, characterized in that the restoring element ( 6 ) is designed as a spring-loaded coiling drum ( 6 ) for a sheathed cable ( 7 ), said coiling drum being connected to the movable stacking wall ( 1 ) by means of the sheathed cable ( 7 ).  
     
     
         6 . The stacking device as claimed in  claim 5 , characterized in that the sheathed cable ( 7 ) forms a single-layered coil on the coiling drum ( 6 ).  
     
     
         7 . The stacking device as claimed in  claim 5  or  6 , characterized in that the sheathed cable ( 7 ) is coiled conically on the coiling drum ( 6 ).  
     
     
         8 . The stacking device as claimed in  claim 5 ,  6  or  7 , characterized in that the coiling drum ( 6 ) is mounted displaceably in the direction (y) of the sheathed cable ( 7 ) originating from the coiling drum ( 6 ).  
     
     
         9 . The stacking device as claimed in one of  claims 5  to  8 , characterized in that the coiling drum ( 6 ) is assigned at least one brake shoe ( 9 ) which, on movement of the movable stacking wall ( 1 ) away from the further stacking wall ( 2 ), can be positioned at a braking region ( 12 ).  
     
     
         10 . The stacking device as claimed in  claim 9 , characterized in that the brake shoe ( 9 ) is designed as a leading brake shoe ( 9 ).  
     
     
         11 . The stacking device as claimed in  claim 8  and  9  or  8  and  10 , characterized in that the coiling drum ( 6 ) is mounted rotatably about a drum point of rotation ( 14 ), in that the brake shoe ( 9 ) is mounted pivotably about a pivot point ( 10 ), and in that a section connecting the pivot point ( 10 ) and the drum point of rotation ( 14 ) runs parallel to the displacement direction (y) of the coiling drum ( 6 ).  
     
     
         12 . The stacking device as claimed in  claim 9  or  10 , characterized in that the brake shoe ( 9 ) is arranged on the coiling drum ( 6 ).  
     
     
         13 . The stacking device as claimed in  claim 12 , characterized in that the brake shoe ( 9 ) is mounted and designed in such a manner that, when the coiling drum ( 6 ) is rotated, it automatically positions itself at the braking region ( 12 ) owing to the centrifugal force.  
     
     
         14 . The stacking device as claimed in one of  claims 9  to  13 , characterized in that the brake shoe ( 9 ) are coated with a compressible lining ( 13 ), for example felt or leather.  
     
     
         15 . The stacking device as claimed in  claim 14 , characterized in that the braking region ( 12 ) consists of a material which does not change under the effect of air, for example smoothly polished brass or plastic.