Patent ID: 7007946

Claim:
Apparatus for depositing sheets, conveyed in a conveying direction, on a stack, comprising: rotating frictional elements ( 3 , 4 ), said rotating frictional elements ( 3 , 4 ) being rotatable at different speeds to accommodate for sheet skew and being movable in the vertical direction ( 18 ) perpendicular to the conveying direction ( 10 ) of sheets ( 2 ) to be lowered onto the stack ( 1 ), a device for conveying sheets from a printing machine over the stack into the active range of said rotating frictional elements, on the side of the stack ( 1 ) that faces the printing machine, tongues ( 5 , 6 ) with which said rotating frictional elements ( 3 , 4 ) can be brought into and out of contact and which can be moved in the conveying direction ( 10 ) of sheets ( 2 ) and in the opposite direction and can be lowered onto the stack ( 1 ), and wherein on the side of the stack ( 1 ) that faces the printing machine, at least one hold-down ( 7 ) is provided which can be moved in the conveying direction ( 10 ) of sheets ( 2 ) and in the opposite direction and can be lowered onto the stack ( 1 ).