Apparatus for stacking sheet material
AssigneeGiesecke & Devrient GmbH
InventorsMarkus Haberstroh, Tobias Haberstroh, Erwin Demmeler
Life of this patent
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Abstract
The sheet compartments of a stacking wheel of a stacking device, as used in sheet goods processing devices, in particular in banknote processing machines and automated money deposit and/or withdrawal machines, have a wavy contour. The braking effect on the banknotes fed into the sheet compartments is thereby increased, so that the banknotes can be fed into the sheet compartments at increased speed without being damaged.
Claims19
A stacker wheel comprising sheet pockets distributed over the circumference for receiving one or several sheets of sheet material, which extend in the stacker wheel from radially outside to radially inside,
- wherein each of the sheet pockets is formed by a first surface facing a second surface, and both the first surface and the second surface of each of the sheet pockets have a wavy course of the sheet pockets, viewed along the respective sheet pocket from radially outside to radially inside, both the first surface and the second surface each having a first curvature, in particular a positive curvature, in a first section and a first inflection point between the first section and a second section adjacent thereto, and
- wherein the first inflection point of both the first surface and the second surface, viewed along the respective sheet pocket from radially outside to radially inside, lies in a region of 40% to 70% of the length of the respective sheet pocket, and
- wherein the sheet pockets are so constituted that the width of the respective sheet pocket, viewed from radially outside to radially inside, consistently decreases or remains the same, but, viewed from radially outside to radially inside, at no point of the sheet pocket increases.
The stacking apparatus according to claim 7, wherein the stacking apparatus for stacking sheet material comprises at least two stacker wheels according to claim 16, and
- wherein the respective sheet obtains through the first inflection point a wavy deformation along its moving direction and, through the staggering of the at least two or more stacker wheels, additionally a wavy deformation transverse to its moving direction, so that a wavy deformation of the respective sheet along its moving direction is achieved, which is different in dependence on the position transverse to the moving direction of the sheet.
A stacking apparatus for stacking sheet material, the stacking apparatus comprising at least one stacker wheel, the at least one stacker wheel including sheet pockets distributed over the circumference for receiving one or several sheets of sheet material, the sheet pockets extending in the stacker wheel from radially outside to radially inside,
- wherein each of the sheet pockets is formed by a first surface facing a second surface, and both the first surface and the second surface of each of the sheet pockets have a wavy course of the sheet pockets, viewed along the respective sheet pocket from radially outside to radially inside, both the first surface and the second surface each having a first curvature, in particular a positive curvature, in a first section and a first inflection point between the first section and a second section having a second curvature,
- wherein the first inflection point of both the first surface and the second surface, viewed along the respective sheet pocket from radially outside to radially inside, lies in a region of 40% to 70% of the length of the respective sheet pocket,
- wherein the sheet pockets are so constituted that the width of the respective sheet pocket, viewed from radially outside to radially inside, consistently decreases or remains the same, but, viewed from radially outside to radially inside, at no point of the sheet pocket increases,
- wherein the stacking apparatus further comprises at least one stripper configured to strip sheets from the sheet pockets of the stacker wheel, and
- wherein the contact zone of the stripper is adjusted to the course of the sheet pockets in such a way that the angle, which faces the at least one stacker wheel shaft, between the stripper and the sheet pocket at the point of first impingement of the sheet material on the stripper amounts to at least 70° and at most 110°.
Dependencies are inferred from the claim text.