Stamper comprising a low-oscillation guiding handle

Abstract

The invention relates to a stamping device for compacting soil. Said device comprises an upper body and a lower body which can be linearly moved counter to each other by means of a drive, a guiding element and an integrated spring system. Said device can be manually guided by means of a handle over a working area. In order to transfer as little oscillation as possible to the handle, said handle is connected to the upper body and the lower body by means of an intermediate element extending between the upper body and the lower body, in which area the movement or weight forces from the upper body and the lower body are extensively compensated.

1 . A stamping apparatus for soil, comprising: an upper mass and a lower mass that can be moved in linear fashion and in opposite directions to one another by a drive, and that are connected with one another by a bellows and can be guided over a working area by hand using a grasping handle wherein the handle is connected with the upper mass and with the lower mass via an intermediate element that extends between the upper mass and the lower mass, in the area of which the movements emanating from the upper mass and from the lower mass largely compensate one another.  
     
     
         2 . The stamping apparatus as recited in  claim 1 , wherein the handle is connected with the intermediate element at both sides of the stamping apparatus.  
     
     
         3 . The stamping apparatus as recited in  claim 2 , wherein the handle is guided so as to be capable of movement relative to the upper mass by guide rods, of which one end is connected with the handle and the other end is connected with the intermediate element, and which are guided on the upper mass so as to be at least approximately capable of longitudinal movement.  
     
     
         4 . The stamping apparatus as recited in  claim 1 , wherein the intermediate element is the bellows that extends between the upper mass and the lower mass.  
     
     
         5 . The stamping apparatus as recited in  claim 4 , wherein the part of the bellows connected with the handle is a fold that is largely free of oscillation during operation of the stamper.  
     
     
         6 . The stamping apparatus as recited in  claim 5 , wherein the bellows has four folds, and the handle is connected with the second fold following the upper mass.  
     
     
         7 . The stamping apparatus as recited in  claim 4 , wherein the fold connected with the handle is surrounded by a clamp that is adapted to the outer radius of the fold, and to which a connecting element is connected that participates in the movement of the handle.  
     
     
         8 . The stamping apparatus as recited in  claim 5 , wherein inside the bellows the fold connected with the handle has a greater distance to the folds adjacent thereto.  
     
     
         9 . The stamping apparatus as recited in  claim 5 , wherein inside the bellows, the fold connected with the handle has an increased rigidity.  
     
     
         10 . The stamping apparatus as recited in  claim 5 , wherein a support and/or guide ring is allocated to the fold connected with the handle.  
     
     
         11 . The stamping apparatus as recited in  claim 10 , wherein the support and/or guide ring is placed in the interior of the fold.  
     
     
         12 . The stamping apparatus as recited in  claim 11 , wherein the support and/or guide ring is made of a plastic having good gliding properties.  
     
     
         13 . The stamping apparatus as recited in  claim 3  wherein the guide rods are guided by ball-type nipples on the upper mass.  
     
     
         14 . The stamping apparatus as recited in  claim 3 , wherein the guide rods are guided by rockers on the upper mass.  
     
     
         15 . The stamping apparatus as recited in  claim 14 , wherein the rockers have rotating joints at least on one end, which are fashioned as damping torsion elements.  
     
     
         16 . The stamping apparatus as recited in  claim 1 , wherein the intermediate element is connected essentially fixedly with the handle, and the upper mass and the lower mass are each connected with the intermediate element so as to be capable of movement, via rockers.  
     
     
         17 . The stamping apparatus as recited in  claim 16 , wherein the intermediate element is formed by guide rods that are connected with the handle.  
     
     
         18 . The stamping apparatus as recited in  claim 16 , wherein the rockers are situated on both sides of the upper mass and the lower mass has a prolongation that protrudes into the area of the upper mass on which the rockers are mounted for connecting the lower mass with the intermediate element.  
     
     
         19 . The stamping apparatus as recited in  claim 16 , wherein the rockers are mounted at least on one end via damping torsion elements.  
     
     
         20 . The stamping apparatus as recited in  claim 16 , wherein the intermediate element is guided on the upper mass so as to be capable of longitudinal movement.  
     
     
         21 . The stamping apparatus as recited in  claim 1 , wherein the intermediate element is formed by double-acting struts that are connected with the handle, the guide housing of each of these struts being attached on the upper mass, while two guide rods that can be moved relative to one another and to the guide housing are connected one under the other and with the guide housing by springs that are arranged in series and that simultaneously act as tension and compression springs, the one guide rod being connected with the handle, and the other guide rod being connected with the lower mass.  
     
     
         22 . The stamping apparatus as recited in  claim 21 , wherein each guide rod is connected with a spring plate that can be displaced in the housing, and the first spring is situated between the spring plate of the one guide rod and the end surface, through which this guide rod passes, of the housing, and the second spring is situated between the two spring plates.  
     
     
         23 . The stamping apparatus as recited in  claim 1 , wherein the intermediate element is connected to the handle via elastic intermediate elements.