Patent ID: 7290649
Filing Date: 2007-11-06
Classification: B65G

Abstract:
1. A roller arrangement ( 7 ) for conveying piece goods ( 18 ) along a stowing roller conveyor ( 1 ), comprised of a stationary roller axle ( 20 ) arranged in a support frame ( 3 ) of the stowing roller conveyor ( 1 ); a driving roller ( 9 ) and a conveying roller ( 10 ) adapted to be driven and/or braked, if need be, rotationally mounted on said roller axle; as well as a mechanically actuated clutch system ( 12 ), particularly a friction clutch system arranged between said rollers ( 9 ) and ( 10 ), said clutch system comprising clutch components ( 14 , 15 ) adjustable against one another via a setting device ( 13 ); whereby at least one of the clutch components ( 14 , 15 ) is axially adjustable against the action of at least one spring element ( 36 ), from a switching position in which such component is engaged, into a switching position in which it is disengaged, and the first clutch component ( 14 ) is drive-connected with the conveying roller ( 10 ), and the other clutch component ( 15 ) with the driving roller ( 9 ); and coupling surfaces ( 43 , 44 ) of the clutch components ( 14 , 15 ), such surfaces facing each other, are supported against one another by a force of contact pressure in the switching position in which they are engaged, wherein a self-adjusting setting device ( 47 ) is arranged between the conveying roller ( 10 ) and the first clutch component ( 14 ) adjustable on the roller axle ( 20 ), said setting device comprising at least two transmitting elements ( 42 , 48 ; 117 , 118 ) engaged via a tooth system ( 49 ) and adjustable against one another in the axial and/or peripheral directions in relation to the roller axle ( 20 ); the first clutch component ( 14 ), in the presence of a relative movement between the conveying roller ( 10 ) and the first clutch component ( 14 ), is automatically adjusted toward the other clutch component ( 15 ) in the peripheral direction of said conveying roller, and in the axial direction relative to the roller axle ( 20 ); and the coupling surface ( 43 ) of the first clutch component ( 14 ) is pressed against the coupling surface ( 44 ) of the other clutch component ( 15 ) with a force of contact pressure set depending on the weight of the piece goods ( 18 ) transported by the conveying roller ( 10 ), until slip-free friction grip is reached between the two clutch components ( 14 , 15 ).