EP3121138B1 - Roll storage system for picking up vouchers - Google Patents

Description

The invention relates to a roll storage for receiving notes of value, which comprises a winding drum, on which the notes of value can be taken up wound up between at least two foil strips. Furthermore, the roller store has a sensor, with the aid of which it can be determined when a maximum permissible fill level of the roll store has been reached or has been abandoned. This sensor comprises a light source and a light receiver for receiving the light beam emitted by the light source. By leaving the maximum permissible level, it is understood that, after the maximum permissible level has been reached previously, the maximum permissible level is again fallen below, in particular after one or more banknotes have been taken out.

In FIG. 1 is a side view and in FIG. 2 a front view of a highly simplified illustrated role storage according to the prior art shown. The roller storage 10 comprises a rotatable about a motor 12 winding drum 14, on which the notes of value 16 are recorded between two times two film strips 18 to 24 wound up. Furthermore, the roller storage 10 has a housing 26, on which via rails 28, 30, a light source 32 and a light receiver 34 of a sensor unit for determining a maximum level of the roller storage 10 are provided.

In this case, the light source 32 and the light receiver 34 are arranged such that the beam path 36, along which the light beam emitted by the light source 32 extends to the light receiver 34, is arranged orthogonal to the longitudinal axis 38 of the winding drum 14.

As in FIG. 1 shown the banknotes 16, when wound on the winding drum 14, often not arranged in a straight line, but waves, in particular due to the only partial contact with the film strips 18 to 24th

This brings with it the problem that a possibly already completely filled roller storage 10, ie a roller storage which has reached its maximum receiving volume, can not be recognized correctly, since by the film strips 18 to 24 calculated in the area along which the beam path 36 runs , the note of value is bent inward, ie in the direction of the longitudinal axis 38 of the winding drum 14, so that despite reaching the actual maximum level, the light beam between the light source 32 and the light receiver 34 is not interrupted, so that reaching the maximum level can not be reliably detected can.

In addition, the roller storage 10 according to the prior art has the disadvantage that by the attachment of the Receiver 34 via the rails 28, 30 on the cover of the housing 26 results in a long tolerance chain, which can lead to inaccuracies in the measurement. The repeatability of a level in a roller storage 10 and the reproducibility of a level over several roller storage 10 are provided by the long tolerance chain and referencing of the items with large variances. US 2003/116400 A1 discloses a roller store according to the preamble of claim 1.

It is an object of the invention to provide a roll storage for receiving notes, in which the achievement of a maximum level can be determined reliably in a simple manner.

This object is achieved by a roller storage with the features of claim 1. Advantageous developments of the invention are specified in the dependent claims.

According to the invention, the light source and the light receiver are arranged such that the beam path, along which the light beam emitted by the light source extends to the light receiver, is aligned parallel to the longitudinal axis of the winding drum. The winding drum is in particular cylindrical.

In the context of this application, the longitudinal axis of the winding drum is understood in particular to mean the axis of rotation about which the winding drum rotates.

By arranging the beam path parallel to the longitudinal axis of the winding drum is achieved that regardless of the shape of the notes of value, especially in curling notes of value, the beam path and thus the light beam emitted from the light source is always interrupted upon reaching the maximum level and thus reaching of the maximum level can be determined reliably and safely with the help of only one sensor. In particular, it is achieved by the parallel course of the beam path that the beam path runs over the entire length of the winding drum, so that even small outwardly bulging parts of the note are already arranged in the beam path and thus interrupt the light beam. Inversely, leaving the maximum permissible level can be reliably detected. This ensures that the reel is filled again with more notes only when he has enough recording capacity again.

The light source and the light receiver are arranged in particular such that the distance of the beam path to the longitudinal axis of the winding drum corresponds to the maximum allowable thickness, ie that thickness of the winding drum and the notes deposited on it, in which the maximum level is reached.

The distance between the light source and the light receiver is in particular greater than the length of the winding drum formed so that the beam path covers the entire length of the winding drum and thus regardless of where the winding drum reached its maximum thickness always the beam path is interrupted as soon as this point is arranged with the maximum thickness in the range of the beam path. The length is the dimension of the winding drum parallel to the longitudinal or rotational axis of the winding drum.

In a preferred embodiment, the light source and the light receiver are arranged such that the beam path is rectilinear. In particular, the beam path is designed such that the light beam emitted by the light source extends directly to the light receiver, d. h. That no deflection by interposed other optical elements, such as deflection prisms, takes place. Thus, a minimum tolerance chain is achieved, which allows an even more accurate detection of the achievement of the maximum level of the role storage of notes of value.

The light source is designed in particular as an LED. Thus, a simple low-cost production is achieved.

By the light source and the light receiver in particular a light barrier is formed, is closed at the interruption to the achievement of the maximum level. The roller storage comprises a housing, wherein the light source and / or the light receiver are attached directly to the housing. This ensures that no additional elements are interposed over which a tolerance chain would result, which would make the positioning of the light source or the light receiver inaccurate and thus would also lead to a less accurate detection of the sensor formed by the light source and the light receiver.

The light source and the light receiver are arranged in particular on the opposite sides of the housing. In the housing, a first recess for receiving the light source and / or a second recess for receiving the light receiver is present. In this way, the light source and / or the light receiver can be fixed in a particularly simple manner accurately positioned on the housing.

It is particularly advantageous if the first recess and / or the second recess are punched into the housing. In particular, the recesses are punched together with the bearings for the winding drum in the corresponding walls of the housing, so that the distance between the recesses and the central axis of the winding drum is precisely defined and thus an accurate measurement of the Achieve the maximum allowable thickness and thus the maximum level is possible.

In a further embodiment, the light source and / or the light receiver may each be attached to a circuit board. In particular, the light source and / or the light receiver can be attached to a circuit board of a control unit of the reel memory. In this way, a particularly simple and inexpensive production is achieved.

In a particularly preferred embodiment, the reel memory comprises a control unit for controlling the reel memory, which is designed such that it generates data with information that the reel has reached its maximum permissible level, and in particular outputs when the light source from the light source to the light receiver along the beam path extending light beam has been interrupted. Depending on this data, in particular the filling of the reel memory can be stopped with further banknotes and / or a message can be issued that the reel storage is completely filled.

In a particularly preferred embodiment, the control unit generates the data with the information that the roller storage has reached its maximum allowable level, then, when the light beam is interrupted for at least a predetermined fraction of a winding drum rotation throughout.

The fraction of a winding drum rotation is understood in particular to mean a predetermined angle of rotation. In this case, a fraction of a winding drum rotation can also correspond exactly to a winding drum rotation or even be greater than a winding drum rotation.

In particular, the control unit generates the data when the light beam is interrupted for at least one-eighth winding drum revolution. This ensures that it can be concluded with reliable safety on the achievement of the maximum level.

In a particularly preferred embodiment, the reel memory comprises a control unit for controlling the reel memory, which is designed such that it generates data with information that the reel has left its maximum allowable level, and in particular outputs when the light source from the light source to the light receiver along the beam path extending light beam is no longer interrupted. Depending on this data, in particular filling of the reel memory with other banknotes can take place again.

In a particularly preferred embodiment, the control unit generates the data with the information that the roller storage has left its maximum allowable level, then off when the light beam for at least a predetermined fraction of a winding drum rotation is not interrupted throughout.

In particular, the control unit generates the data that the maximum level has been left, then, when the light beam is interrupted for at least one winding drum revolution. This ensures that can be concluded with reliable reliability on leaving the maximum level.

The roller storage in particular has a motor for rotating the winding drum. The motor is, for example, a stepping motor, a DC motor with clock or a DC brushless motor (BLDC motor) with clocking. About the number of steps or cycles of the motor can be determined in a simple manner, the respective angle of rotation of the winding drum, so that the control unit via a corresponding comparison of the duration of the interruption or not interrupting the light beam and thus the time taken in this time winding drum rotation, so rotated angle of rotation at this time, can determine whether the light beam has been interrupted long enough to be able to safely close to reaching or leaving the maximum level.

In an alternative embodiment, a sensor for determining the rotational position of the motor and / or the winding drum be provided. In particular, an incremental encoder can be used.

Further features and advantages of the invention will become apparent from the following description, which illustrates the invention with reference to embodiments in conjunction with the accompanying figures.

Figur 1

eine Seitenansicht einer schematischen, stark vereinfachten Darstellung eines Rollenspeichers gemäß dem Stand der Technik;

Figur 2

eine Frontansicht des Rollenspeichers nach Figur 1;

Figur 3

eine Seitenansicht eines stark vereinfachten Rollenspeichers und einer ersten Ausführungsform der Erfindung;

Figur 4

eine Frontansicht des Rollenspeichers nach Figur 3; und

Figur 5

eine schematische, stark vereinfachte Darstellung eines Rollenspeichers gemäße einer zweiten Ausführungsform der Erfindung.

Show it:

FIG. 1

a side view of a schematic, highly simplified representation of a roller store according to the prior art;

FIG. 2

a front view of the role repository after FIG. 1 ;

FIG. 3

a side view of a greatly simplified roller storage and a first embodiment of the invention;

FIG. 4

a front view of the role repository after FIG. 3 ; and

FIG. 5

a schematic, highly simplified representation of a roller store according to a second embodiment of the invention.

In the FIGS. 3 and 4 is a schematic, highly simplified representation of a roller storage 50 shown according to a first embodiment, wherein FIG. 3 a side view and FIG. 4 shows a front view. Elements with the same function or the same structure as in the embodiment of the prior art according to the Figures 1 and 2 have the same reference numerals.

The roller storage 50 comprises a housing 26 within which a winding drum 14 is arranged, which can be rotated about its longitudinal axis 38 via a motor 12. By means of the rotation of the winding drum 14, notes of value 16 are received between film strips 18 to 24 and wound onto the winding drum 14.

On the side walls 52, 54 of the housing 26 recesses 56, 58 are provided, wherein in one of these recesses 56, a light source 32 and in the other recess 58, a light receiver 34 of a sensor unit for determining the maximum allowable level of the roller storage 50 provided on bank notes are. Of the light source 32, which is in particular a LED, a light beam along a beam path 36 is emitted to the light receiver 34, which detects this light beam, as long as there is no banknote in the beam path 36, so the light beam is not interrupted. About the interruption of the light beam can be closed by a control unit under predetermined criteria on the achievement of the maximum level of the roller storage 10. In particular, a message is then output that the roller storage is completely filled when the light beam during rotation of the winding drum 14 for at least a predetermined fraction of a winding drum rotation, in particular one-eighth of a winding drum rotation is interrupted.

The light source 32 and the light receiver 34 are arranged such that the beam path 36 and thus also the light beam emitted by the light source 32, parallel to the longitudinal axis 38 of the winding drum 14 extend. As a result, in particular the comparison with the in FIG. 1 shown situation, achieved that even with the curl of notes of 16 still reliably the beam path 36 is interrupted, if the maximum level of the roller storage 10 is reached. Thus, regardless of the shape of the notes of value 16, the achievement of the maximum permissible fill level can be reliably detected.

The recesses 56, 58, in which the light source 32 and the light receiver 34 are arranged, in particular, together with the bearings for the winding drum 14 in the Side walls 52, 54 stamped, so that the distance between the central axis 14 and the light receiver 34 and the light source 32 and thus the beam path 36, is set very precisely. This distance corresponds in particular to the maximum permissible thickness which the winding drum 14 is allowed to reach by winding up the notes of value and which represents the maximum permissible fill level. In addition, a minimum possible tolerance is achieved via the direct attachment to the walls 32, 34 of the housing 26. In particular, larger tolerance chains are avoided by the interposition of additional fasteners.

In FIG. 5 is a schematic, highly simplified representation of a roller storage 60 shown according to a second embodiment. Here, the light source 32 and the light receiver 34 are not directly attached to the walls 52, 54 of the housing, but each mounted on a board 62, 64, which in turn is then attached to the walls 32, 34. As a result, a particularly simple production is achieved. In particular, can be dispensed with a separate wiring.

The circuit board 62 is, in particular, a circuit board on which the control unit 66 for controlling the roller accumulator 60 is also arranged. Thus, it is possible to dispense with additional components.

By the arrangement of the beam path 36 parallel to the longitudinal axis 38 along the entire winding drum 14 is achieved that only a single sensor unit consisting of a light source 32 and a light receiver 34 is necessary, which can be arranged at many possible locations within the reel memory. Thus, the naturally only slightly available space within the reel memory 60 is effectively utilized.

Furthermore, other optical sensor units, which are located in vertical alignment with the central axis 38 of the roller accumulator 14, are not disturbed or influenced.

In addition, due to the smallest possible tolerance chain, different expansions of the roller accumulator can be reliably reproduced and identified as repeatable.

Another advantage of arranging the light source on the sidewalls 52, 54 is that, as a result, the light source 32 and the light receiver 34 are much less contaminated by dust and debris falling from the notes of value and thus only a rare maintenance is required and the reliability is increased.

LIST OF REFERENCE NUMBERS

10, 50, 60

roll storage

12

engine

14

winding drum

16

of notes

18 to 26

casing

28, 30

rail

32

light source

34

light receiver

36

beam path

38

longitudinal axis

52, 54

Side wall

56, 58

recess

62, 64

circuit board

66

control unit

Claims (6)

1. Roll storage system for receiving vouchers, having a winding drum (14) onto which the vouchers (16), received between at least two film tapes (18 to 24) are capable of being wound, and having a sensor for determining the attainment of and/or the departure from the maximum permissible filling level of the roll storage system (50, 60) in terms of vouchers (16), wherein the sensor comprises a light source (32) and a light receiver (34), wherein the roll storage system (50, 60) comprises a housing (26),
   characterized in that
   the light source (32) and the light receiver (34) are disposed in such a manner that the beam path (26) from the light source (32) to the light receiver (34) runs parallel with the longitudinal axis of the winding drum (14), wherein the light source (32) and/or the light receiver (34) are/is fastened directly to the housing (26), in particular on opposite sides (52, 54) of the housing (26), and wherein a first clearance (56) for receiving the light source (32) and/or a second clearance (58) for receiving the light receiver (34) are/is provided in the housing (26).
2. Roll storage system (50, 60) according to Claim 1, characterized in that the light source (32) and the light receiver (34) are disposed in such a manner that the spacing of the beam path (36) from the longitudinal axis of the winding drum (14) corresponds to the maximum permissible thickness of the winding drum (14) and of the vouchers (16) that are wound onto the latter.
3. Roll storage system (50, 60) according to one of the preceding claims, characterized in that the light source (32) and the light receiver (34) are disposed in such a manner that the beam path (36) runs in a straight line.
4. Roll storage system (50, 60) according to one of the preceding claims, characterized in that the light source (32) comprises a light-emitting diode.
5. Roll storage system (50, 60) according to one of the preceding claims, characterized in that the clearances (56, 58) are punched into the housing (26) .
6. Roll storage system (50, 60) according to one of the preceding claims, characterized in that the light source (32) and/or the light receiver (34) are in each case/is fastened to a circuit board (62, 64), in particular to a circuit board (62, 64) of a control unit (66).

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