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Blade Assembly of a Hedge Trimmer

  • US 20130031785A1
  • Filed: 08/06/2012
  • Published: 02/07/2013
  • Est. Priority Date: 08/05/2011
  • Status: Abandoned Application
First Claim
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1. A blade beam of a motor driven hedge trimmer, said blade beam comprising:

  • a first and a second shear knife, at least one of said first and said second shear knives being configured to be moveable in an oscillating manner counter to the other one of said shearing knives by a stroke between two reversal points;

    said first and said second shear knives each having cutting teeth which are arranged at a distance (a) one from the other;

    said cutting teeth of said first shear knife and said cutting teeth of said second shear knife being configured to act in opposition to each other;

    a portion of said cutting teeth having cutting edges for carrying out a chipless, shearing severing of material to be cut;

    said first and said second shear knives having respective first cutting teeth;

    said first and said second shear knives being configured so as to cause said first cutting tooth of one of said first and second shear knives to be at least in partial overlapment with said first cutting tooth of the other one of said first and said second shear knives at said two reversal points;

    a trim cut region having at least a subset of said cutting teeth including said first cutting tooth, a second one of said cutting teeth and a third one of said cutting teeth disposed between said first and second cutting teeth;

    said cutting teeth in said trim cut region being at said distance (a) from each other; and

    ,said distances (a) between the three cutting teeth and said stroke being matched to each other so as to cause said first cutting tooth of one of said first and said second shear knives to completely glide over the third cutting tooth of said other one of said first and said second shear knives as said first shear knife moves between said two reversal points.

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