# US 5,701,822 A · Device for changing printing forms or plates

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- Number: US 5,701,822 A
- Document ID: US5701822A
- Status: Granted
- Kind: A
- Application number: 08/627,772
- Filed: 1996-04-01
- Granted: 1997-12-30
- Earliest claimed: 1995-03-31
- Assignees: Heidelberger Druckmaschinen AG; Heidelberg Harris, Inc.
- Inventors: Jacques Metrope
- Web page: https://patentgrep.com/patent/US5701822A

## CPC

- B41F 27/1206: {Feeding to or removing from the forme cylinder}
- B41F: PRINTING MACHINES OR PRESSES (manifolding devices or office printing machines B41L)

## Abstract

Device for changing printing forms on cylinders of printing presses, including a swivelable printing-form loading unit having respective compartments for feeding and for removing printing forms, the loading unit being swivelable into an operating position at a gap formed in a printing-form cylinder equipped with clamping devices, and into a loading position wherein the loading unit is retracted from the operating position thereof, further includes a holding element having an insertion region for a printing form to be removed from the printing-form cylinder, and devices for transporting a printing form to be fed onto the printing-form cylinder, the printing-form loading unit being swivelable into a vertical loading position thereof at the holding element.

## Claims

### Claim 1

Device for changing printing forms on cylinders of printing presses, including a swivelable printing-form loading unit having respective compartments for feeding and for removing printing forms, the loading unit being swivelable into an operating position at a gap formed in a printing-form cylinder equipped with clamping devices, and into a loading position wherein the loading unit is retracted from the operating position thereof, comprising:
a holding element having an insertion region for a printing form to be removed from the printing-form cylinder, and said holding element having devices for transporting a printing form to be fed onto the printing-form cylinder, the printing-form loading unit being swivelable into a vertical loading position thereof at said holding element;
a plurality of stops for the printing forms and one of said stops having a prestressed lever; and
control units operatively associated with the printing-form removing and feeding compartments of the printing-form loading unit for actuating said stops.

### Claim 2 (depends on 1)

Printing-form changing device according to claim 1, wherein said insertion region is operatively associated with the printing-form removing compartment of the printing-form loading unit.

### Claim 3 (depends on 1)

Printing-form changing device according to claim 1, wherein said printing-form transporting devices are disposed on said holding element and engage in a transport plane for the respective printing form which is disposed in the printing-form feeding compartment and is to be fed onto the printing-form cylinder.

### Claim 4 (depends on 1)

Printing-form changing device according to claim 1, including a protection device for supporting the printing-form loading unit in an operating position thereof.

### Claim 5 (depends on 1)

Printing-form changing device according to claim 1, including a roller positionable at the printing-form cylinder for facilitating the printing-form removal from and mounting on the printing-form cylinder.

### Claim 6 (depends on 5)

Printing-form changing device according to claim 5, wherein said positionable roller is a dampening-solution applicator roller of a printing unit.

### Claim 7 (depends on 1)

Printing-form changing device according to claim 1, wherein one of said stops is movable parallel to the longitudinal direction of the printing-form removing compartment.

### Claim 8 (depends on 7)

Printing-form changing device according to claim 7, including a connecting link guide, one of said stops being displaceable in said connecting link guide.

### Claim 9 (depends on 1)

Printing-form changing device according to claim 1, wherein one of said stops is operatively associated with the printing-form feeding compartment for gripping a trailing edge of a printing form disposed therein and to be newly fed onto the printing-form cylinder.