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US 6,615,724 B2Granted
Input nip roller system for external drum imaging system
AssigneeAgfa NV
InventorsPhilip Rombult, Aron Mirmelshteyn
Life of this patent
Estimating the term…
Abstract
The present invention provides an input roller system for displacing a printing plate toward and against a plurality of registration pins located on an external drum of an imaging system. The input roller system deskews the printing plate relative to the registration pins.
Claims17
An input roller system, comprising:
- a drive shaft having a plurality of cross-pins, each cross-pin having a first end portion;
- a plurality of drive rollers configured to rotate about said drive shaft, each of said drive rollers including a bearing having a drive opening, wherein said first end portion of each of said cross-pins is positioned within each of said drive openings respectively;
- at least one biasing system for biasing said first end portion of each of said cross-pins against a first side of each of said drive openings;
- wherein a rotation of said drive shaft results in a corresponding rotation of each of said drive rollers;
- wherein said drive shaft is configured to continue rotating after any or all of said drive rollers stop rotating;
- and
- at least one stop for limiting the continued rotation of said drive shaft relative to said drive rollers.
4 more elements
An input roller system, comprising:
- a drive shaft;
- a plurality of drive roller assemblies mounted coaxially onto said drive shaft, each roller assembly comprising;
- a bearing mechanism having a drive opening formed into a surface thereof;
- a spring for biasing said drive roller assembly with respect to said drive shaft, said spring having a first end coupled to said drive roller;
- a clamping mechanism for coupling a second end of said spring to said drive shaft;
- a pin attached to said clamping mechanism, said pin positioned within said drive opening:
- a stop for limiting a rotation of said drive shaft relative to said drive roller;
- and
- wherein said biasing system biases said pin against a first side of said drive opening;
- and
- wherein said drive shaft is configured to continue rotating, after any or all of said drive rollers stop rotating, in response to said spring being exercised by said shaft.
8 more elements
An input nip roller system employed in a drum imaging machine, said input roller system for loading and deskewing a printing plate, the input roller system comprising:
- a plurality of drive roller assemblies each having a drive opening formed into a portion thereof;
- a drive shaft for coaxially mounting said drive roller assemblies thereon;
- a plurality of spring bias systems for biasing each of said drive roller assemblies with respect to said drive shaft such that said shaft is capable of rotating a limited distance after any or all of said drive roller assemblies stop rotating;
- a plurality of pins fixedly coupled to said drive shaft, each of said pins having at least a portion thereof positioned within each of said drive openings respectively;
- wherein each of said spring biasing systems biases said portions of each of said pins against a first side of each of said drive openings;
- and
- wherein said pins stop relative rotating motion between said shalt and the drive roller assembly associated with each pin, when said pins contacts a second side of said drive openings.
4 more elements
Dependencies are inferred from the claim text.