Stretcher roller
OwnerMichael Podlesny, Karl-Heinz Schneidersinventors
Life of this patent
Estimating the term…
Abstract
A stretcher roller for spreading out moving flexible strip material such as for example plastics film, paper or textiles, has a cylindrical outer surface of elastomeric material, with inclined incisions which are separated from one another by webs. The transition from the surface into an incision which makes an included angle of less than 90.degree. is of rounded or chamfered form. In this way a sharp-edged transition from the surface into the incision in question is avoided. Such sharp edges can damage the strip material if it enters the incision, which is particularly likely at the ends of the roller. The rounded transition avoids this damage.
Claims11
A stretcher roller comprising a roller body mounted for rotation about a longitudinal axis, with an outer surface of elastomeric material, said elastomeric outer surface being substantially cylindrical, and having at least one incision inclined to said longitudinal axis, and a transition surface from said outer surface into said incision making an included angle of less than 90.degree., and being rounded.
Dependencies are inferred from the claim text.