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US 5,692,441 AGranted
Drawing roller drive
AssigneeKoenig & Bauer-Albert Aktiengesellschaft
InventorHorst Bernhard Michalik
Life of this patent
Estimating the term…
Abstract
A drawing roller pair of a web-fed rotary printing press receives a web that is to be conveyed. The axial spacing distance between the two drawing rollers is adjustable by an adjusting spindle. At least one of the rollers carries a resilient transport element whose effective radius will be reduced if the two rollers are moved closer to each other. This will reduce the transport speed of the resilient transport element.
Claims14
A drawing roller pair for a web-fed rotary printing press for conveying a material web comprising:
- first and second drawing rollers supported on first and second drawing roller support shafts;
- means for varying an axial spacing distance between said roller support shafts;
- an interlocking drive on at least one of said rollers;
- and
- transport elements carried by said first and second drawing roller support shafts, said transport element carried on said at least one driven roller being elastically supported in a radial direction and being capable of transmitting torque, an effective radius of said radially elastically supported transport element being reduced from a first radius to a second radius by reduction of said axial spacing distance to change a circumferential speed of said transport element.
2 more elements
Dependencies are inferred from the claim text.