Sheet feeding machine
AssigneeGeorg Spiess GmbH
InventorJosef Marass
Life of this patent
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Abstract
A device for feeding sheets to another machine, said device having conveying rollers continuously rotating at the same peripheral speed as the receiving rollers of the fed machine. Gripper devices reciprocate toward and away from the conveying rollers to pick up a sheet and accelerate it to the peripheral speed of the rollers. The gripper devices are disengageably coupled to the conveying rollers to be driven thereby and to be actuated in time sequence with the fed machine.
Claims6
In a device for feeding sheets to a fed machine, said device having stationary conveying rollers that rotate continuously at the same peripheral speed as receiving rollers of the fed machine and gripper devices which reciprocate toward and away from the conveying rollers, the improvement comprising:
- A. crank means for driving the gripper devices from the conveying rollers in a reciprocating motion such that the gripper devices accelerate said sheets to about the peripheral speed of the conveying rollers;
- and
- B. clutch means connected between the continuously rotating conveying rollers and the crank means for the reciprocating gripper devices for engaging said crank means in time sequence with said fed machine, said clutch means being actuated in said time sequence by a rotating cam driven in timed relationship with said fed machine and a cam follower having an end for contacting the rotating cam and an actuating end for mechanically actuating the clutch means, said cam follower being pivoted between said ends.
Dependencies are inferred from the claim text.