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US 2008/0072776 A1Published application
Home positon storage unit and home position storage method for use with printing press
AssigneeRyobi Ltd.
InventorsKenta Kimura, Takahiko Nakamura
Life of this patent
Estimating the term…
Abstract
A home position sensor, which constitutes a portion of a home position storage unit, stores a home position by means of previously detecting the position of a printing cylinder cam. Accordingly, a printing cylinder comes to a stop at a plate replacement position at the time of replacement of a plate even when the printing cylinder cam does not pass by the home position sensor.
Claims9
A printing press comprising:
- a printing unit including a printing cylinder that is capable of replacing a plate;
- a driving device that drives the printing unit;
- a position sensor that detects a signal output in synchronism with rotation of the driving device and generates position information including an amount of rotation of the driving device;
- a home position sensor provided on the printing unit to detect a position of the printing cylinder in a rotating direction of the printing cylinder;
- and
- a home position storage unit that stores a home position of the printing cylinder by means of extracting position information generated by the position sensor at a point when the home position sensor has detected the position of the printing cylinder,
- wherein the home position storage unit stores the home position before an issuance of a command for replacement of a plate.
4 more elements
A home position storing method for use with a printing press, wherein the printing press comprising:
- a printing unit including a printing cylinder that is capable of replacing a plate;
- a driving device that drives the printing unit;
- a position sensor that detects a signal output in synchronism with rotation of the driving device and generates position information including an amount of rotation of the driving device;
- and
- a home position sensor provided on the printing unit to detect the position of the printing cylinder in a rotating direction of the printing cylinder,
- wherein the method comprises:
- storing a home position of the printing cylinder by means of extracting position information generated by the position sensor at a point when the home position sensor has detected the position of the printing cylinder, the home position being stored before an issuance of a command for replacement of a plate.
4 more elements
Dependencies are inferred from the claim text.