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US 7,891,660 B2Granted
Device for the transport of sheets by means of a chain-driven gripper bar
AssigneeHeidelberger Druckmaschinen AG
InventorsStefan Mutschall, Andreas Böttger, Markus Möhringer
Life of this patent
Estimating the term…
Abstract
In a device for the transport of sheets in a sheet-processing machine, preferably a printing press, provision is made to transport the sheets on chain-guided gripper bars. The gripper bars are fixed respectively to two chain links arranged indirectly beside each other. The forces acting on the gripper bars are more evenly distributed.
Claims7
A sheet transport device, comprising:
- a gripper bar;
- transport chains for driving said gripper bar, said transport chains having a plurality of alternately arranged inner and outer links, and chain pins connecting said inner and outer links to one another;
- said gripper bar being mounted to two different chain links of a respective said transport chain;
- and
- a bearing point being disposed between two chain pins of a common said chain link;
- spherical ball and socket bearings forming bearings between said gripper bar and said transport chains, one spherical ball and socket bearing being formed as a fixed bearing and rigidly connected to a respective said inner link or outer link.
3 more elements
A sheet transport device, comprising:
- a gripper bar;
- transport chains for driving said gripper bar, said transport chains having a plurality of alternately arranged inner and outer links, and chain pins connecting said inner and outer links to one another;
- said gripper bar being mounted to two different chain links of a respective said transport chain;
- and
- a bearing point being disposed between two chain pins of a common said chain link;
- spherical ball and socket bearings forming bearings between said gripper bar and said transport chains;
- one spherical ball and socket bearing being formed as a loose bearing configured for being movable in a sheet transport direction in a groove formed in a respective said inner link or outer link.
4 more elements
A sheet transport device, comprising:
- a gripper bar;
- transport chains for driving said gripper bar, said transport chains having a plurality of alternately arranged inner and outer links, and chain pins connecting said inner and outer links to one another;
- said gripper bar being mounted to two different chain links of a respective said transport chain;
- a bearing point being disposed between two chain pins of a common said chain link;
- and
- each gripper bar being mounted to said transport chains by way of a fixed bearing, a loose bearing with one degree of freedom, and two loose bearings each having two degrees of freedom.
3 more elements
Dependencies are inferred from the claim text.