Article dispensing – Automatic control
Patent
1996-09-16
1997-12-16
Pitts, Harold
Article dispensing
Automatic control
221 13, 902 16, 235379, B65G 5900
Patent
active
056975171
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a banknote dispensing unit including a backnote container and a frame-like receiving module.
DE-A-3706808 discloses a dispensing unit which is intended for automatic banknote dispensers and in which banknotes are extracted upwards from a banknote container through an opening at its upper front edge. The opening can be closed by a flap, for which purpose the banknote container has a flap-actuating device which can be controlled in dependence on the displacement path of the banknote container in the receiving module. Furthermore, a retracting element is provided, and, when the banknote container is removed from the receiving module and before the flap is closed, the retracting element forces the banknotes which are located in the banknote container away from the opening, back into the container interior. Furthermore, the banknote container constructed in accordance with DE-A-3706808 also includes a pressing device which can be actuated by a motor, pressing the banknotes against the extracting device, and the construction of which can be gathered from DE-A-3434780.
The abovedescribed dispensing unit operates reliably as long as the banknotes are extracted upwards from the cassette. This is because, irrespective of the position of the retracting element, the banknotes are always located on their base and cannot drop out of the cassette. It is therefore also not possible for them to get jammed in between the flap and the housing upon closure of the cassette. The separating device, which generally comprises a transportation roller and a counteracting roller, may be arranged above the banknote container since, if too many banknotes are extracted and pushed back by the counteracting roller, they can drop back into the container.
If, however, the intention is for banknotes to be extracted downwards from the banknote container, other conditions apply: the separation device has to penetrate into the banknote container in order for banknotes which have been gripped in duplicate and pushed back remain in the container. When the banknote container is removed from the receiving module, the retaining force by which the extracting device retains the front banknotes in their position decreases. It is then possible for these banknotes to drop easily into the nip between the separation roller and the counteracting roller. If the flap then closes, then the banknotes which have dropped down get jammed in between said flap and the housing. This inevitably results in disruption to functioning when the cassette is reintroduced into a receiving module.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a dispensing unit for banknotes in which the banknotes are drawn downwards from the banknote container through an opening at the lower front edge of the banknote container, and in which they are always retained securely within the banknote container when the latter is pushed into the receiving module or pushed out of the see.
This object is achieved by the present invention. The invention is based on the consideration that the banknotes may only pass into that region of the banknote container which, with the banknote container pushed into the receiving module, is occupied by the extracting device when the container is also actually located there. For this purpose, the invention runs through successive control steps: when the banknote container is pushed into the receiving module, over a first section of the displacement part, the flap is pivoted away from a first part of the opening. If the banknote container is then pushed further into the receiving module, then a closure plate which covers over the second part of the opening is also pushed away, with the result that the removal opening for the banknotes is fully opened. It is only when the entire displacement path is essentially being covered that a locking means which retains the retracting element in its retracted position is released, whereupon the retracting element is displaced by the pressing dev
REFERENCES:
patent: 3767080 (1973-10-01), Rickson
Pitts Harold
Siemens Nixdorf Informationssysteme Aktiengesellschaft
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