Driving mechanism for groups of adjustable sheet-gripping elements in a transfer cylinder of a sheet-fed printing machine
AssigneeVeb Kombinat Polygraph "Werner Lamberz" Leipzig
InventorsOtfried Rudolph, Gunter Peter, Karlheinz Fischer
Life of this patent
Estimating the term…
Abstract
A driving mechanism for groups of operating elements arranged in a rotary sheet guiding cylinder of a sheet-fed printing machine includes a pair of control shafts arranged in the guiding cylinder parallel to its axis of rotation and being driven by transmission gears arranged in the cylinder, two sets of cams, each supported on an assigned control shaft for activating a group of operating elements in a selected operational mode of the machine, and clutch means provided between the transmission gears and the shafts and operated from one point to actuate one control shaft and deactivate the other control shaft.
Claims13
A driving mechanism for groups of gripping elements arranged in a rotary sheet guiding cylinder of a sheet-fed printing machine which is switchable for selecting one of two operational modes such as printing on one side of the sheet only or printing on both sides of the sheet, said driving mechanism comprising transmission gears supported for rotation in said guiding cylinder;
- two control shafts arranged in said guiding cylinder for rotation parallel to the axis of rotation of said guiding cylinder;
- a first set of cams mounted on one of said control shafts for driving said groups of gripping elements in one operational mode;
- a second set of cams mounted on the other control shaft for driving said groups of gripping elements in the other operational mode;
- and clutch means arranged between said control shafts and said gears to activate a selected control shaft and deactivate the other control shaft.
Dependencies are inferred from the claim text.