Curved gripping elements for gripping of the raw hide

摘要

The invention concerns means of capture,devices for stretching and stretching the raw skin on the plate to the raw skin. The means of attachment include a set of attachments containing the first attachment and the second attachment,anyone with a gripping surface,where the longitudinal dimension of the above -mentioned surface of the first element of grip in a direction parallel to the longitudinal axis of the centre -axle of the plate to the raw skin is shaped like a protruding curve, so configured,that it corresponds to the shape of the round surface of the said second capture element in such a way,that, when the said gripping surfaces are in the opposite position,and the raw skin is placed between the grasping surfaces,this raw skin can be caught by the catching surface by moving the catching surface together,where the said gripping surface of the first gripping element contains a surface curve in the first point,having the first curve radius (R1) of the surface,and the said gripping surface of the said second gripping element contains a surface curve at the second point,having a second curve radius (R2),Whereas the first and second points referred to are contradictory in the said contrasting arrangement,where the first curve radius (R1) of the surface is less than the second curve radius (R2) of the surface of 10 -40%,for example a 15 -35% or for example a 20 -30%.