Patent ID: 6869003

Claim:
A conveyor unit for conveying a web of material, in particular for conveying a web of corrugated board in a corrugating machine, comprising a machine frame ( 14 ); a delivery roller ( 17 ), which is lodged in the machine frame ( 14 ) rotatably about a first axis of rotation ( 22 ); a driving motor ( 34 ) for actuation of the delivery roller ( 17 ); a draw roller ( 24 ), which is lodged in the machine frame ( 14 ) rotatably about a second axis of rotation ( 27 ), the first axis of rotation ( 22 ) and the second axis of rotation ( 27 ) being substantially parallel to each other, a nip ( 32 ) for the web of material ( 3 ) to pass through being formed between the delivery roller ( 17 ) and the draw roller ( 24 ), the draw roller ( 24 ) having a draw-roller-surface coefficient of friction, which is selected so as to ensure power transmission from the draw roller ( 24 ) to the web of material ( 3 ) that rests thereon, and the delivery roller ( 17 ) having a delivery-roller-surface coefficient of friction, which is less than to the draw-roller-surface coefficient of friction; and a torque transmission arrangement, which acts between the delivery roller ( 17 ) and the draw roller ( 24 ) for torque transmission from the driving motor ( 34 ) and the delivery roller ( 17 ) to the draw roller ( 24 ), a free-wheel ( 43 ) being disposed between the torque-transmission arrangement and the draw roller ( 24 ).