Printing press having plate discharge device
AssigneeRyobi Ltd.
InventorShigeo Fujiwara
Life of this patent
Estimating the term…
Abstract
A printing press which can limit increase in the entire size of a plate discharge device while moving a printing plate in a plate discharge direction by a sufficient distance is provided. The plate discharge device is provided with a cylinder device. A first clamping roller is mounted via a pinion to a mounting member mounted to a rod of the cylinder device. A rack is disposed to be meshed with the pinion. A second clamping roller is provided to the mounting member so as to be movable closer to and away from the first clamping roller via a switching means.
Claims4
A printing press with a plate cylinder, on which a printing plate is to be mounted, comprising:
- a clamping gripper being provided on the plate cylinder so as to clamp an edge of the printing plate;
- and
- a plate discharge device for moving the printing plate in a plate discharge direction with a trailing edge of the printing plate as a leading edge after the printing plate is released from a clamped relationship with the clamping gripper;
- said plate discharge device comprising:
- a plate guide member for forming a plate discharge passage in the plate discharge direction;
- a transfer member disposed along the plate discharge passage for being brought into contact with a printing plate, which has been released from the clamped relationship with the clamping gripper, so as to transfer the printing plate in the plate discharge direction;
- an extendable device for reciprocatingly moving the transfer member along the plate guide member through the length of the reciprocating stroke thereof;
- and
- a moving distance addition means for allowing the printing plate, which is kept in contact with the transfer member, to be moved in the plate discharge direction through a distance obtained by adding a given distance to the distance corresponding to the length of the reciprocating stroke of the extendable device.
Dependencies are inferred from the claim text.