Sheet conveying device
AssigneeOce-Nederland B.V.
InventorTheodoor H. Linthout
Life of this patent
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Abstract
A device for conveying a sheet along a conveying path while bringing and/or holding an edge of the sheet against an abutment strip at one side of the conveying path comprises a friction member that rotates about an axis extending transversely over the conveying path and has flexible fingers each extending in a direction that is the resultant of an axial component directed toward the abutment strip and a tangential component in the direction of rotation of the friction member. A rotating finger contacting a sheet in the path will bend in such a way that its end is displaced in the sheet conveying plane in the direction toward the abutment strip to position the sheet against that strip, and then will bend so as to move its end off the sheet.
Claims10
A sheet conveying device comprising means forming a conveying path for sheets, a sheet abutment strip along a side of said path, and a rotatable friction member for advancing a sheet along said path while bringing an edge of the sheet into and/or holding such edge in contact with the abutment strip, said friction member being rotatable about a fixed axis extending transversely over the conveying path and being provided with at least one flexible elongate finger the central longitudinal axis of which extends substantially throughout the length of the finger in a direction that is the resultant of an axial component directed toward said abutment strip and a tangential component in the direction of rotation of said member, each said finger on rotation of said member about said fixed axis traversing a surface of revolution that intersects said path.
A sheet conveying device comprising a friction member rotatable about a central axis thereof disposed transversely over a conveying path for sheets, for advancing a sheet along said path while bringing an edge of the sheet into and/or holding such edge in contact with an edge abutment strip along a side of said path;
- said friction member comprising a hollow body portion made of elastic material, the outer surface of which describes a truncated cone, and a hub portion extending coaxially from the smaller diameter end of said body portion;
- said body portion having a plurality of substantially straight elongate slits cut away from it at regular intervals about said axis, each from its larger diameter end to a smaller diameter base of said body portion and at an acute angle to a plane containing said axis and intersecting the slit;
- said body portion comprising between said slits regularly spaced, elastically flexible, elongate fingers each of which normally lies at the surface of said cone and protrudes from said base with the central longitudinal axis of the finger extending substantially throughout the length of the finger at a substantially uniform acute angle relative to a plane containing said central axis and intersecting the finger;
- the ends of said fingers, on rotation of said friction member about said central axis, traversing a surface of revolution that intersects said conveying path.
Dependencies are inferred from the claim text.