Sheet-like member holding device of printing press

Patent metadata

Field	Value
Publication number	US-9694607-B2
Application number	US-201615171583-A
Country	US
Kind code	B2
Filing date	Jun 2, 2016
Priority date	Jun 5, 2015
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A sheet-like member holding device includes a first holding unit disposed between a gripper receiving portion and a side wall of a gap, and configured to hold a base of a non-metal sheet. The first holding unit includes a space in which the base is inserted while the non-metal sheet extends inward in a radial direction from an outer surface side of a printing cylinder, and an abutment wall configured to restrict movement of the base to the outside in the radial direction. An end portion of the space in an axial direction of the printing cylinder is open to the outside. This makes it possible to attach and detach the non-metal sheet by a simple method without moving a gripper member or gripper pad.

First claim

What is claimed is:

1. A sheet-like member holding device of a printing press, comprising:
a gripper receiving portion disposed in a gap formed in an outer surface of a cylinder, and configured to grip a sheet as a printing product together with a gripper;
a first holding unit disposed between the gripper receiving portion and a side wall extending in a radiation direction of the cylinder on an upstream side in a sheet convey direction in the gap, and configured to hold one end portion of a main body of a sheet-like member overlaid on the outer surface of the cylinder; and
a second holding unit configured to hold the other end portion of the main body of the sheet-like member,
wherein the sheet-like member includes, at the one end portion of the main body, a locking piece formed to have a thickness larger than that of the main body,
the first holding unit includes a space in which the one end portion of the main body of the sheet-like member is inserted while the sheet-like member extends inward in the radial direction of the cylinder from an outer surface side of the cylinder, and an abutment wall opposing the locking piece of the one end portion inserted in the space from the outside in the radial direction of the cylinder, and configured to restrict movement of the locking piece to the outside in the radial direction, and an end portion of the space in an axial direction of the cylinder is open to the outside of the cylinder toward the axial direction.

2. The device according to claim 1 , wherein
the locking piece extends from one end to the other end of the sheet-like member in the axial direction, and
the locking piece includes a handle formed in one end portion in the axial direction.

3. The device according to claim 1 , wherein
the gripper receiving portion includes a gripper pad configured to sandwich the sheet in cooperation with the gripper, and a gripper pad shaft configured to detachably hold the gripper pad, and
the abutment wall is configured to restrict the movement of the locking piece even if the gripper pad is detached from the gripper pad shaft.

4. The device according to claim 1 , wherein
the second holding unit includes a slider and a plate configured to sandwich the other end portion of the main body of the sheet-like member,
a first bolt configured to fix the plate to the slider,
a guide member configured to movably support the slider,
a second bolt configured to determine a position of the slider with respect to the guide member,
a third bolt configured to fix the slider to the guide member, and
a loosening prevention member configured to prevent loosening of the second bolt.

5. The device according to claim 4 , wherein the second holding unit further includes a removal prevention member configured to prevent removal of the first bolt and the third bolt.

6. The device according to claim 1 , wherein the second holding unit is disposed in another gap separated from the gap in a circumferential direction of the cylinder.

Assignees

• Komori Corp

Inventors

• Ogawa Naoki
• Inose Satoshi

Classifications

• B41F30/02

  attaching to impression cylinders · CPC title

• B41F30/04 Primary

  attaching to transfer cylinders · CPC title

• B41J11/58 Primary

  Supply holders for sheets or fan-folded webs, e.g. shelves, tables, scrolls, pile holders · CPC title

• B41J13/223

  on rotatable drums · CPC title

• B41F21/10 Primary

  Combinations of transfer drums and grippers · CPC title