Method and device for transmitting value documents

Abstract

The invention relates to a device (5) and a method for conveying value documents (1), in which value documents are conveyed individually in sequence along a conveying path (10). A front conveying mechanism (21, 22, 3a, R0), a speed adaptation device (12) and a rear conveying mechanism (23, 24, 3b, R5) are arranged along the conveying path of the value documents. The speed adaptation device has at least one conveying roller pair (25, 26, R1-R4), by means of which the conveying speed of the respective value document is changed from a first conveying speed (v1) of the front conveying means to a second conveying speed (v2) of the rear conveying means.

Description

[0001] The invention relates to a method and a device for transmitting value documents.

[0002] It is known that valuable documents are transported individually and sequentially by means of a transport mechanism, such as a transport belt or roller, and the valuable documents are sandwiched between the transport mechanisms. The transport mechanism can be arranged inside or outside the valuable document processing device. In this process, it may occur that the transport mechanism runs the valuable documents at different transport speeds. The difference in transport speed may be small, for example, only due to slight differences in the drive of the transport mechanism. However, the difference may also be artificially designed and large, for example, because the transport mechanisms belong to different devices or undertake different transport tasks. The operating speed of the downstream rear transport mechanism can be faster or slower than the upstream front transport mechanism.

[0003] The valuable document may be subjected to greater mechanical stress or even damage at the abrupt transition from the front conveyor to the rear conveyor. For example, when the rear conveyor is slow, the valuable document may be squeezed and folded in some cases, and when the rear conveyor is fast, the valuable document may be stretched and torn in some cases.

[0004] Therefore, the technical problem to be solved by the present invention is to provide a method or an apparatus in order to reduce the risk of damage to value documents when transferring between transport mechanisms running at different speeds.

[0005] According to the invention, this problem is solved by a method and a device according to the independent claims. Advantageous embodiments of the invention are the subject of the dependent claims.

[0006] The invention proposes a conveying device, which is designed to convey valuable documents individually one after another along a conveying path and has at least one upstream conveying mechanism and at least one downstream conveying mechanism along the conveying path, the upstream conveying mechanism providing a first (e.g. constant) conveying speed for the valuable documents conveyed by it, and the downstream conveying mechanism providing a second (e.g. constant) conveying speed for the valuable documents conveyed by it, which second speed is different from the first conveying speed, in particular less than or greater than the first conveying speed. The conveying device has a speed adaptation device, which has at least one conveying roller pair, which is arranged along the conveying path between the upstream conveying mechanism and the downstream conveying mechanism. The speed adaptation device is designed to change, in particular increase or reduce, the conveying speed of the valuable documents conveyed at a first conveying speed toward the speed adaptation device from the first conveying speed to the second conveying speed of the downstream conveying mechanism by means of the at least one conveying roller pair, in particular by changing or modulating the rotational speed of one or two conveying rollers of the at least one conveying roller pair.

[0007] By means of the speed adaptation device according to the invention with the transport roller pair, value documents can be accelerated or decelerated to different transport speeds with a low risk of damage. This is particularly important, for example, for used value documents, but is also advantageous for other value documents.

[0008] In particular, the upstream transport mechanism is designed to transport the value document toward the speed adaptation device, and the speed adaptation device is designed to bring the value document from a first transport speed of the upstream transport mechanism to a second transport speed of the downstream transport mechanism by means of at least one transport roller pair.

[0009] The speed adaptation device can be designed to, for example, transport or hand over the value document to a downstream transport mechanism at a second transport speed at the end of a change in the transport speed or after the transport speed change. The downstream transport mechanism is designed to transport the value document further along the transport path after the speed adaptation device. In other words, the speed adaptation device is designed to adjust the transport speed of the value document according to the different transport speeds of the two transport mechanisms.

[0010] The speed adaptation device is preferably designed to rotate one or both transport rollers of at least one transport roller pair at a variable or modulated rotational speed. In particular, the rotational speed of at least one transport roller pair is modulated such that the transport speed of the respective value document is changed from a first transport speed to a second transport speed by the action of at least one (preferably two) transport rollers of the transport roller pair rotating at the modulated rotational speed.

[0011] Further conveying elements, such as guide elements, freewheeling rollers or the like, can also be arranged along the conveying path between the upstream conveying mechanism and the speed adaptation device and / or between the speed adaptation device and the downstream conveying mechanism.

[0012] One advantage of a speed adaptation device with at least one pair of transport rollers, for example compared to a conveyor belt for changing the speed, is that the extension of the at least one pair of transport rollers along the transport path is smaller. This allows a speed adjustment specifically for individual value documents without any other value documents engaging with the at least one pair of transport rollers of the speed adaptation device. This enables individual speed adjustments specifically for individual value documents.

[0013] Another advantage of the speed adaptation device with at least one conveyor roller pair, for example compared to a roller-guided conveyor belt for speed change, is that the inertial mass of the conveyor rollers of the at least one conveyor roller pair is lower than that of the roller-guided conveyor belt. As a result, the at least one conveyor roller pair can realize acceleration / deceleration dynamics with less inertia and faster speeds.

[0014] In a preferred embodiment, the direction of the second transport speed substantially coincides with the direction of the first transport speed, i.e. the respective value document is further transported after the speed adaptation device at least approximately in the same direction in which it was transported towards the speed adaptation device. For example, the upstream transport mechanism, the speed adaptation device and the downstream transport mechanism form a straight section of the transport path of the value document.

[0015] The speed adaptation device has at least one rotatable transport roller pair, which is arranged along the transport path in the transition area between the front transport mechanism and the rear transport mechanism. The corresponding transport roller pair of the speed adaptation device has at least one upper transport roller arranged above the transport path of the value document and at least one lower transport roller arranged below the transport path of the value document, and the corresponding value document is clamped between the upper transport roller and the lower transport roller. These transport rollers can mechanically act on the value document transported between them to accelerate / decelerate the value document. Each transport roller of the transport roller pair preferably has a uniform roller radius on its circumference.

[0016] The respective transport roller pair can be designed to clamp the respective value document between the upper and lower transport rollers in order to transmit a force, in particular a force for accelerating or decelerating the respective value document, to the respective value document preferably in a friction fit. For example, the transport rollers of the respective transport roller pair are designed to accelerate / decelerate the respective value document relative to the (next value document immediately following along the transport path) when the respective value document is transported along the transport path by mechanically acting on the respective value document. One or both transport rollers of the respective transport roller pair can be arranged to suck the respective value document in order to transmit a force for accelerating / decelerating to the respective value document. Preferably, one or both transport rollers of the respective transport roller pair are designed to transport the value document in a friction fit.

[0017] The speed adaptation device preferably has at least one transport roller drive for at least one transport roller pair and a control device for controlling the at least one transport roller drive. The control device is particularly configured to drive the at least one transport roller pair via the at least one transport roller drive so that the at least one transport roller pair receives the corresponding value document from the upstream transport mechanism at a first transport speed, brings the value document to (accelerates / decelerates) a second transport speed, and transports or transfers it to the downstream transport mechanism at the second transport speed.

[0018] The transport roller pair of the speed adaptation device can be driven by at least one transport roller drive such that the track speed of the transport rollers varies, for example cyclically, between exactly or approximately the first transport speed and exactly or approximately the second transport speed.

[0019] The control device can be configured to drive at least one transport roller pair via at least one transport roller drive so that the track speed or the rotational speed of the transport roller is modulated periodically, i.e. repeatedly. This allows the transport speed of a plurality of value documents to be varied in sequence. These documents can be accelerated or decelerated in the same or different manners.

[0020] The track speed of the transport roller preferably changes continuously or continuously (i.e. not abruptly) from a first transport speed for the value documents to a second transport speed (continuous increase or continuous decrease) and then back to the first transport speed (decrease or increase). The continuous change of the transport speed is particularly gentle on the value documents and the transport roller drive, since the mechanical load on the transport roller drive is kept low.

[0021] The conveying roller drive can be a modulatable rotation drive, for example a motor with a variable speed. The control device can be arranged to control at least one conveying roller drive so that it rotates at least one, preferably two, of the conveying rollers of at least one conveying roller pair at a modulated rotation speed. Therefore, the upper conveying roller and / or the lower conveying roller of the corresponding conveying roller pair can be driven by the conveying roller drive. Because, when the corresponding valuable document is conveyed by the driven opposite conveying rollers, only one of the two conveying rollers is driven and the other conveying roller (through the friction fit of the clamped valuable document) rotates therewith. However, preferably, the two conveying rollers are driven at the same (variable) rotation speed, wherein the upper conveying roller and the lower conveying roller rotate in opposite directions so as to convey the corresponding valuable document along the conveying path.

[0022] The control device of the speed adaptation device is particularly configured to control at least one transport roller drive of at least one transport roller pair so as to change the transport speed of the respective value document from a first transport speed to a second transport speed by means of a modulated rotational speed of the at least one transport roller pair. The control device can modulate the rotational speed of the at least one transport roller pair by means of the at least one transport roller drive of the at least one transport roller pair so that the transport speed of the respective value document is changed from a first transport speed to a second transport speed by means of the at least one transport roller pair, in particular by means of a modulated rotational speed of the at least one transport roller.

[0023] The device can have a plurality of identical or different speed adaptation devices, which can be arranged, for example, one behind the other, for example in order to compensate for large differences in the conveying speeds of upstream and downstream conveying mechanisms.

[0024] In order to prevent the value document from rotating during its acceleration, at least one further upper transport roller can be arranged concentrically (e.g. on the same drive shaft) and laterally offset with the upper transport roller, and / or at least one further lower transport roller can be arranged concentrically (e.g. on the same drive shaft) and laterally offset with the lower transport roller. These further transport rollers form a laterally offset further transport roller pair, between which the value document is likewise clamped and which is accelerated / decelerated in the same way as the aforementioned transport roller pairs.

[0025] The conveying device has at least one front conveying mechanism and at least one rear conveying mechanism along the conveying path, and the front and rear conveying mechanisms can, for example, respectively have at least one conveyor belt and / or at least one conveying roller and / or at least one conveying roller pair or a combination thereof. For example, the front and / or rear conveying mechanism has conveyor belts or conveyor belts that are arranged opposite to each other (for example, running on rollers), and during the conveying process, the valuable documents are clamped between the conveyor belts or conveyor belts. However, the front and / or rear conveying mechanism can also have one or more conveying roller pairs with upper and lower conveying rollers, and the valuable documents are clamped between the upper and lower conveying rollers. Compared with the front conveying mechanism, the rear conveying mechanism can provide a higher or lower conveying speed for the valuable documents conveyed by it. In particular, the front and / or rear conveying mechanism is designed to convey the valuable documents with friction fit.

[0026] In particular, the corresponding valuable document can be accelerated / decelerated from a first transport speed to a second transport speed by the rotation of at least one transport roller pair of the speed adaptation device. For example, at least one transport roller pair of the speed adaptation device can give each valuable document arriving at the transition between the upstream transport mechanism and the downstream transport mechanism a temporarily continuous acceleration pulse / deceleration pulse in order to accelerate / decelerate it from the speed of the upstream transport mechanism to the speed of the downstream transport mechanism. Compared to a sudden acceleration / deceleration achieved only by the downstream transport mechanism, i.e. without the additional presence of a speed adaptation device, a gentler acceleration / deceleration of the valuable document is thereby achieved.

[0027] The speed adaptation device is preferably designed to accelerate / decelerate the first value document, in particular each first value document transported along the transport path downstream of the immediately following second value document, relative to the second value document, thereby increasing / decreasing the distance between the first value document and the second value document.

[0028] In a first variant of the invention, the speed adaptation device is designed to accelerate the value documents from a first transport speed to a (greater) second transport speed. By accelerating the value documents, the speed adaptation device enables an increase in the distance between successive value documents. Compared to increasing the distance by delaying subsequent value documents or by a stop-and-go operation of the transport device, this type of acceleration has the advantage that the increase in distance does not have a deceleration reaction on upstream processes and that no buffer storage for the value documents is required in the meantime.

[0029] In a second variant of the invention, the speed adaptation device is designed to decelerate the value documents from a first transport speed to a (lower) second transport speed. By decelerating, the speed adaptation device is able to reduce the distance between successive value documents. By reducing the value document distance, more value documents can be transported per unit length along the transport path than in the case of a larger distance. Thus, a transport path section located after the speed adaptation device, for example a section of a downstream transport mechanism, can be used as a buffer for value documents, i.e. for temporary storage or at least for delaying value documents, if a subsequent process requires this.

[0030] As an alternative or in addition to the acceleration / deceleration, the speed adaptation device can also be provided for adjusting the distance between successive valuable documents. It can thus be achieved that, after passing through the speed adaptation device, the distance between the leading edges of the successive valuable documents is at least approximately the same for all or at least a large number of the successive valuable documents. This makes it possible to achieve a more uniform processing of the valuable documents, for example to achieve a higher stacking quality of the stacks generated from these valuable documents by the stacking wheel. This is because, when the distance between the leading edges of successive valuable documents is at least approximately the same, the valuable documents are uniformly conveyed into the rotating stacking wheel, thereby improving the stacking quality.

[0031] The speed adaptation device can also easily realize different acceleration / deceleration of value documents of different lengths. For this reason, the intensity or duration of the acceleration is adjusted according to the length of the value document, for example, so that the leading edge distance of value documents of different lengths is the same.

[0032] For this adjustment, the speed adaptation device, in particular its control device and the transport roller drive can be designed to control the intensity of the acceleration / deceleration of the corresponding first valuable document individually, for example, depending on the distance of the corresponding valuable document from the next valuable document and / or depending on the distance of the corresponding valuable document from the previous valuable document. For example, if the distance of the corresponding valuable document from the subsequent valuable document is less than a lower limit distance, the speed adaptation device accelerates the corresponding valuable document more strongly, and / or if the distance of the corresponding valuable document from the subsequent valuable document is greater than an upper limit distance, the speed adaptation device accelerates the corresponding valuable document more weakly. Such control of the speed adaptation device can be realized on the basis of a sensor (e.g. a light barrier) upstream of the speed adaptation device, which measures the distance between consecutive valuable documents. Advantageously, a more uniform distance of the valuable documents can be achieved by the individual acceleration / deceleration of the valuable documents.

[0033] In order to accelerate one or more value documents more strongly than other value documents individually, the modulatable rotary drive can briefly provide a higher or lower transport speed for the relevant value documents than for other value documents. For individually weaker acceleration / deceleration of one or more value documents, a correspondingly less increased / reduced transport speed is provided.

[0034] Preferably, the distance between the last engagement point of the upstream transport mechanism and the first (if necessary the only) engagement point (clamping position) of at least one transport roller pair of the speed adaptation device is shorter than the length of the valuable document, and / or the distance between the last (if necessary the only) engagement point of at least one transport roller pair and the first engagement point of the downstream transport mechanism is shorter than the length of the valuable document. In this case, the valuable document engages simultaneously with the upstream transport mechanism and the (first) transport roller pair of the speed adaptation device. This has the advantage that the valuable document is in at least two consecutive positions. As a result, the valuable document is better guided during transport and an inclined position or lateral deviation (floating or sinking) of the valuable document is avoided.

[0035] Smaller distances also allow acceleration / deceleration when clamped in these two positions. For example, the speed adapter or control device can be arranged to start changing the transport speed of the corresponding value document by at least one transport roller pair at the moment when the corresponding second value document is (still) transported by the front transport mechanism.

[0036] Typically, when a valuable document is accelerated relative to a front transport mechanism, while the front transport mechanism is still in meshing / frictional engagement with the valuable document, the friction of the front transport mechanism counteracts the acceleration of the valuable document and generates mechanical stress on the valuable document. In order to keep the mechanical stress during the acceleration process low, the front transport mechanism can be designed to transport the valuable document in an unfixed manner or with such low static friction that the valuable document can be accelerated relative to the front transport mechanism when being transported by the front transport mechanism, for example, the valuable document can roll or slide relative to the front transport mechanism without being damaged in the process. For example, the front transport mechanism is designed to transport the valuable document without fixing the valuable document in terms of relative movement relative to the front transport mechanism. In order to transport the valuable document in such an unfixed manner or with such low static friction or in an unfixed manner,

[0037] The upstream conveyor can have an integrated freewheel to accommodate higher conveying speeds, for example one or more conveying rollers or pairs of conveying rollers equipped with such a freewheel, or

[0038] The upstream transport mechanism transports the value document by means of a friction force which is chosen to be so low that the value document can be accelerated relative to the upstream transport mechanism or can be slid relative to the upstream transport mechanism without being damaged.

[0039] In order to reduce mechanical stresses on the value document during acceleration / deceleration even when the distance between the last meshing point of the upstream transport mechanism and the first meshing point of the at least one transport roller pair of the speed adaptation device is shorter than the length of the value document, the upstream transport mechanism can also be accelerated / decelerated synchronously with the (first) transport roller pair of the speed adaptation device instead of being transported without fixing. If necessary, the at least one transport roller pair of the speed adaptation device can continue to accelerate after the value document has been disengaged from the upstream transport mechanism.

[0040] In a preferred embodiment, the front transport mechanism is driven by a drive (i.e., the front transmission mechanism actively transports the valuable document, rather than being driven by the valuable document), and the distance between the last meshing point of the front transport mechanism and the first meshing point (clamping position) of at least one transport roller pair of the speed adaptation device is smaller than the length of the valuable document. In order to be able to remove the valuable document from the clamping area of ​​the front transport mechanism without resistance when the speed adaptation device accelerates the valuable document, the front transport mechanism is equipped with an integrated free wheel (Freilauf) to achieve a higher transport speed.

[0041] In particular, the control device can be designed to control the starting moment at which the track speed of the (first) transport roller of the transport roller pair (connected to the front transport mechanism) is changed from the first transport speed, based on the sensor signal transmitted by the sensor. The sensor, which can include one or more gratings, is located in the area of ​​the front transport mechanism and / or at the transition between the front transport mechanism and at least one transport roller pair of the speed adaptation device. The sensor is designed to record the valuable document being transported, for example its leading edge, and transmit a sensor signal corresponding to the recording moment to the control device. For example, the sensor is located between the last meshing point of the front transport mechanism and the first meshing point or the first clamping position of the transport roller pair. The sensor is thus able to record the leading edge of the corresponding valuable document before the valuable document is meshed with the transport roller pair. For example, the sensor is positioned at the above-mentioned transition so that the sensor records the leading edge of the corresponding valuable document when the valuable document is disengaging or has disengaged from the meshing of the front transport mechanism.

[0042] Alternatively or additionally, the control device of the speed adaptation device can also have information about the first conveying speed of the front conveyor mechanism and information about the second conveying speed of the rear conveyor mechanism. For example, the control device can obtain this information from different control devices (such as the control devices of the front / rear conveyor mechanism) or determine this information based on signals obtained by sensor devices (for example, gratings arranged along the front and rear conveyor mechanisms). Based on the information about the first and second conveying speeds, the control device can control at least one conveying roller drive of at least one conveying roller pair. For example, the control device can change the intensity of the acceleration / deceleration of the corresponding valuable document according to the difference between the first and second conveying speeds. For example, the rotation speed of the (first in the case of multiple conveying roller pairs) conveying roller pair when the corresponding valuable document arrives can be changed so that the rotation speed is consistent with the first conveying speed, and / or the rotation speed of the (last in the case of multiple conveying roller pairs) conveying roller pair when handing over the valuable document to the rear conveyor mechanism can be adjusted so that the rotation speed is consistent with the second conveying speed (i.e. the track speed of the (last) conveying roller pair is equal to the first or second conveying speed).

[0043] In the simplest case, the speed adaptation device has only one transport roller pair between the upstream and downstream transport mechanisms (without a cascade of transport rollers) viewed along the transport path. However, if necessary, further transport rollers can also be used at the same position along the transport path, for example on the same axis as the upper / lower transport rollers of the transport roller pair. In this case, the control device is designed to modulate the rotational speed of the transport rollers of the transport roller pair by means of the transport roller drive so that the track speed of the transport rollers varies, for example periodically, between a first transport speed and a second transport speed.

[0044] In an extended design, viewed along the transport path, the speed adaptation device has at least two transport roller pairs (e.g., a cascade of transport roller pairs) between the upstream transport mechanism and the downstream transport mechanism, which are arranged along the transport path between the upstream transport mechanism and the downstream transport mechanism and are arranged one after the other along the transport path, and the speed adaptation device has a plurality of transport roller drives for the transport roller pairs. The control device can be configured to control the transport roller drives of the transport roller pairs so that the corresponding value document is accelerated or decelerated from a first transport speed to a second transport speed by the rotation of the transport roller pairs. The advantage of a plurality of transport roller pairs is that a greater speed change can be achieved with less space, for example for a stronger acceleration or deceleration process.

[0045] The control device can be configured to control the transport roller drives of at least two transport roller pairs such that a change (acceleration / deceleration) of the respective value document from the first transport speed to the second transport speed takes place in at least two stages.

[0046] For example, the speed adaptation device has at least one first transport roller pair and at least one second transport roller pair and, if necessary, further transport roller pairs along the transport path between the front transport mechanism and the rear transport mechanism, wherein the first transport roller pair, the second transport roller pair and, if necessary, further transport roller pairs are arranged one after the other along the transport path. The control device can be designed to control the transport roller drives of the transport roller pairs so that the value document is brought from the first transport speed to (accelerated / decelerated to) the intermediate transport speed by means of the first transport roller pair in a first phase and brought from the intermediate transport speed to (accelerated / decelerated to) the second transport speed by means of the second and, if necessary, further transport roller pairs in one or more further phases. The intermediate transport speed is between the first and second transport speeds.

[0047] For example, the control device can be designed to control the transport roller drives of the transport roller pairs so that the first transport roller pair receives the corresponding valuable document from the front transport mechanism at a first transport speed, accelerates / decelerates the valuable document to an intermediate transport speed in a first stage and transports it to the second transport roller pair, and the second transport roller pair receives the valuable document accelerated / decelerated by the first transport roller pair to the intermediate transport speed.

[0048] - further accelerating / decelerating in a second stage to a higher / lower intermediate transport speed and conveying it to one or more further transport roller pairs, the transport roller drives of these further transport roller pairs being controlled by the control device so that these further transport roller pairs accelerate / decelerate the valuable document from the higher / lower intermediate transport speed of the second transport roller (in one or more further stages) to the second transport speed and convey the valuable document to a subsequent transport mechanism (R5), or

[0049] - In the second stage, the vehicle is accelerated / decelerated to a second conveying speed and conveyed to a subsequent conveying mechanism at the second conveying speed.

[0050] In order to provide the corresponding valuable document with two acceleration / deceleration clamping positions, the distance of the corresponding transport roller pairs of the speed adaptation device along the transport path is selected to be less than the length of the valuable document. This reduces the risk of floating / sinking / skewing when accelerating / decelerating the valuable document. For example, the rotation speeds of each two transport roller pairs arranged in sequence next to each other in the transport roller pair are increased / reduced synchronously with each other when they are simultaneously engaged with the valuable document. For example, when the second driven transport roller pair accelerates / decelerates the valuable document, the first driven transport roller pair is actively accelerated / decelerated by the motor. Alternatively, for possible acceleration, the first driven transport roller pair can be equipped with a free wheel for a higher rotation speed, thereby avoiding confrontation with the acceleration force of the next driven transport roller pair.

[0051] The invention also relates to a device for processing valuable documents, the device having a first device module and a second device module, the first and second device modules being arranged in sequence along a transport path for valuable documents, and the device having the above-mentioned device for transporting valuable documents. The first device module provides a first transport speed for valuable documents, and the second device module provides a second transport speed for valuable documents. The front transport mechanism belongs to the first device module, and the rear transport mechanism belongs to the second device module. The second device module is arranged downstream of the first device module along the transport path for valuable documents.

[0052] The speed adaptation device is designed to change the transport speed of the value documents transported at a first transport speed in the first equipment module from the first transport speed to a second transport speed of the second equipment module by means of at least one transport roller pair.

[0053] The at least one conveyor roller pair of the speed adaptation device can be arranged at the end of the first equipment module or the beginning of the second equipment module, or between the first equipment module and the second equipment module, for example in a coupling module between the first equipment module and the second equipment module.

[0054] The first equipment module can have a first module drive for driving the upstream transport mechanism, and the second equipment module can have a second module drive for driving the downstream transport mechanism (preferably operated independently of the first module drive). If these decentralized drives provide different transport speeds for the value documents, the speed adaptation device can advantageously be used to achieve a smooth transition of the value documents between these transport speeds.

[0055] The second equipment module can be a component of the same value-document processing device as the first equipment module or it can also be a component of a different value-document processing device which is located downstream of the value-document processing device of the first equipment module along the transport path of the value documents. In the second case, the first equipment module belonging to the first value-document processing device can be arranged at the end of the first value-document processing device along the transport path of the value documents, while the second equipment module belonging to the second value-document processing device can be arranged at the beginning of the second value-document processing device along the transport path of the value documents. Thus, the coupling module described above can be arranged between the first equipment module of the first value-document processing device and the second equipment module of the second value-document processing device and can connect the first and second equipment modules if necessary.

[0056] The invention also relates to a method for conveying valuable documents, in particular by means of the above-described device. In the method, valuable documents are conveyed individually and sequentially along a conveying path for valuable documents by means of a conveying device, in particular by means of the above-described conveying device. The respective valuable documents are conveyed at a first conveying speed to a speed adaptation device by means of at least one front conveying mechanism, the speed adaptation device having at least one conveying roller pair. The speed adaptation device changes the conveying speed of the respective valuable documents from the first conveying speed to a second conveying speed of a rear conveying mechanism by means of at least one conveying roller pair, the second conveying speed being different from the first conveying speed. The respective valuable documents are then further conveyed along the conveying path at the second conveying speed by means of the rear conveying mechanism. In particular, the valuable documents are conveyed individually and sequentially toward the speed adaptation device.

[0057] The features and advantages mentioned with respect to the device and the speed adaptation device according to the invention also apply correspondingly to the method according to the invention. Further features of the invention are apparent from the claims, the drawings and the description of the drawings.

[0058] The present invention will be described in more detail below with the aid of the accompanying drawings. In the accompanying drawings:

[0059] Figure 1a , Figure 1b , Figure 1c A first embodiment of a device for conveying value documents with a speed adaptation device is shown. Figure 1b ) and the temporal trend of the modulated rotation speed ( Figure 1c );

[0060] Figure 2a , Figure 2b A second embodiment of a device for conveying value documents with a speed adaptation device is shown;

[0061] Figure 3 The time course of the grating signal LS and the modulated rotational speed in the second embodiment is shown;

[0062] Figure 4a A value-document processing device is shown, which has a plurality of device modules and a coupling module with a speed adaptation device;

[0063] Figure 4b Two value-document processing devices are shown, with a speed adaptation device connected in between;

[0064] Figure 5 A third embodiment of a device for transporting value documents with a speed adaptation device (upper figure) and a modulated rotational speed of a transport roller pair (lower figure) are shown.

[0065] Figure 1a A conveying device 5 is shown, by which valuable documents 1 can be conveyed along a conveying path 10. The conveying device 5 has a plurality of conveying rollers 3 arranged opposite to one another and conveyor belts 21, 22 or 23, 24 arranged opposite to one another, which run around the rollers and between which the valuable documents are conveyed. A speed adaptation device 12 is arranged on the conveying path 10 between the conveyor belts 21, 22 and 23, 24, which has a rotatably driven conveying roller pair with two conveying rollers 25, 26 arranged opposite to one another. The two leading conveyor belts 21, 22 run at a first conveying speed v1, and the two trailing conveyor belts 23, 24 run at a second, higher conveying speed v2. The conveying speed v of the corresponding valuable document 1 is adjusted from v1 to v2 when passing through or through the speed adaptation device 12.

[0066] In the example shown in FIG1 , the transport speed v2 is greater than v1, and the speed adaptation device 12 accelerates the value documents from v1 to v2. The distance between the value documents is thereby increased from a first distance a to a larger second distance A. Alternatively, v2 can also be less than v1, and the speed adaptation device 12 can decelerate the value documents and reduce the distance between them. Alternatively or additionally, the speed adaptation device 12 can also perform a variable distance adjustment, wherein the value documents are accelerated or decelerated to a greater or lesser extent, depending on the purpose of the adjustment.

[0067] At the transition between the slower conveyor belt pair 21, 22 and the faster conveyor belt pair 23, 24, the value document 1 is gripped by the mechanical meshing of the conveyor roller pair 25, 26 of the speed adaptation device 12 with a friction fit and is continuously accelerated or decelerated and further conveyed at the higher / lower conveying speed of the conveyor belt pair 23, 24. The conveyor belt 21 is shorter than the conveyor belt 22 and conveys the value document with such low friction that the value document can slide relative to the conveyor belt 21 without being damaged when it is accelerated by the conveyor roller pair 25, 26.

[0068] Figure 1b The grating signal LS of the grating L is shown, see Figure 1a,and Figure 1c The time profile of the track speed of the accelerating transport roller pair 25 , 26 is shown, which is modulated between v1 and v2 .

[0069] When the leading edge of the value document is recorded by the light barrier L at the time t1, the rotational speed of the transport rollers 25, 26 increases slowly. Shortly after the time t, the respective value document 1 enters the clamping region between the two transport rollers 25, 26 and is therefore continuously accelerated from the first track speed v1 to the second track speed v2. The first track speed v1 of the transport rollers 26 corresponds, for example, to the transport speed of the conveyor belt pair 21, 22 which transports the value document 1 to the transport rollers 25, 26, while the second track speed v2 of the transport rollers 26 corresponds, for example, to the transport speed of the conveyor belt pair 23, 24 which continues to transport the value document 1 after the transport roller pair 25, 26. Since the value document is still in the clamping region of the transport rollers 25, 26 at the time t2 when the light barrier L detects the trailing edge of the value document, the rotational speed of the transport rollers 25, 26 is only staggered in time and reduced again from a later time t3, when the value document 1 has been safely transported out of the clamping region of the transport rollers 25, 26.

[0070] Figure 2a , Figure 2b A second embodiment of a conveying device 5 is shown. Figure 2a shows a side view of the speed adaptation device 12, and Figure 2b The diagram shows a top view of a transport plane of value documents 1. The arrows respectively indicate the transport direction of the value documents 1 along the transport path 10. Figure 3 The top shows the temporal course of the grating signal LS, and Figure 3 The temporal course of the track speed v of the accelerating transport roller pair 25 , 26 is shown below.

[0071] Along the transport path 10 for the value document, a first transport roller pair 3a, an accelerating / decelerating transport roller pair 25, 26 of a speed adaptation device 12 and a second transport roller pair 3b are arranged in sequence, these transport roller pairs having different transport speeds. The first transport roller pair 3a is driven by a motor M1 at a relatively low rotational speed, which corresponds to a low transport speed v1 of the value document, see Figure 3 The third transport roller pair 3b is driven by the motor M2 at a higher rotational speed, which corresponds to the high transport speed v2 of the value document. Alternatively, the first transport roller pair 3a and / or the third transport roller pair 3b can also be driven by another transport mechanism before the first transport roller pair 3a or by another transport mechanism after the third transport roller pair 3b, and thus do not require their own motor M1 or M2. Alternatively, the motor M2 can drive not only the third transport roller pair 3b, but also the first transport roller pair 3a with a fixed speed-up / speed-down ratio.

[0072] In order to prevent the value document from rotating during the acceleration, a further transport roller 25 is arranged on the axis of the transport roller 25 and a further transport roller 26 is arranged on the axis of the transport roller 26, which further transport rollers can be identical to the transport roller 25 or 26, driven in phase with the latter and serve to accelerate the value document, see Figure 2b .

[0073] One or both transport rollers of the transport roller pairs 25, 26 of the speed adaptation device 12 are driven by a stepper motor MS which drives the transport rollers until the value document 1 arrives, initially at a rotational speed corresponding to the lower transport speed v1 of the first transport roller pair 3a, see Figure 3 The modulation of the rotational speed of the transport rollers 25 , 26 is produced by varying the motor speed of the stepper motor MS, which is controlled by the control device S.

[0074] Although the transport rollers 3a are driven, they can be equipped with an integrated freewheel to adapt to higher rotational speeds, which, for example, enables the value document to be pulled out of its clamping area without resistance when the transport roller pair 25, 26 of the speed adaptation device 12 accelerates the value document. The motor M1 can also be used to slow the transport roller 3a back to the initial speed from a higher rotational speed. Otherwise, due to its inertia, when the next value document arrives, the transport roller 3a may rotate at a higher rotational speed than the first transport speed and slow down due to the undesirable friction on the next value document.

[0075] exist Figure 2a and Figure 2b In the embodiment, four grating pairs L1-L4 are arranged along the transport path, which record the leading edge and / or trailing edge of the valuable document and send the corresponding recording time to the control device S. The first optional grating pair L1, which is located in the left section of the transport roller 3a, records the arrival of the leading edge of the corresponding valuable document in order to announce the corresponding valuable document. The second grating pair L2, which is located at the end of the transport roller 3a but before the transport roller pair 25, 26 of the speed adaptation device 12, records the arrival of the leading edge of the corresponding valuable document 1 at the time t0 and reports it to the control device S of the distance increasing device 12 (grating signal LS2, see Figure 3 ). Triggered by the leading edge signal reported by the grating pair L2 at time t0, the control device S controls the motor MS of the conveying roller pair 25, 26 so that the rotation speed of the conveying rollers 25, 26 increases from time t1 shortly thereafter (or immediately thereafter), so as to increase the track speed of the conveying rollers 25, 26 from the first lower conveying speed v1 at time t1 to the second higher conveying speed v2 at time t2, see Figure 3The corresponding valuable document is thereby smoothly and continuously accelerated from the first transport speed v1 of the transport roller pair 3a to the second transport speed v2 of the transport roller pair 3b. The transport roller pair 3b continues to transport the corresponding valuable document at the higher second transport speed v2. With the aid of the light barrier pair L4 arranged in the region of the transport roller pair 3b, it can be checked whether the required speed adjustment of the corresponding valuable document has been successfully carried out.

[0076] If the grating L3 subsequently reports to the control device at the time t3 that it has recorded the trailing edge of the value document 1 (grating signal LS3), the control device responds thereto by causing the transport roller drive of the transport roller pair 25, 26 to reduce the rotation speed of the transport rollers 25, 26 again from the time t3, more precisely by causing the track speed of the transport roller pair 25, 26 to drop from the second transport speed v2 back to the first transport speed v1, see Figure 3 This lasts until the instant t4, i.e., in the time gap before the arrival of the next value document 1', so that the next value document 1' can be picked up by the transport rollers 25, 26 again at the first transport speed v1. Optionally, the recording instant of the respective next value document determined by the grating pairs L1 and / or L2 can be used to design the deceleration behavior of the transport roller pairs 25, 26, so that the first transport speed is reached before the next value document enters its clamping area.

[0077] Instead of a ramp-shaped course of the angular velocity or track speed of the transport rollers 25, 26, a modulation by a sinusoidal course or the like can also be carried out. A shorter acceleration ramp can also be selected in order to accelerate the value document to the transport speed v2 more quickly. This also makes it possible to decelerate the transport rollers to the transport speed v1 at an earlier moment, for example, in order to prepare the transport rollers more quickly for picking up the next value document.

[0078] Alternatively, v2 can also be smaller than v1 and the speed adaptation device 12 can slow down the value documents and reduce the distance between them. Alternatively or additionally, the speed adaptation device 12 can also perform a variable distance adjustment, wherein the value documents are accelerated or slowed down more or less depending on the adjustment purpose.

[0079] Figure 4a The value-document processing apparatus 100 is shown, which is built up from various processing zones realized by modules 2, 3, 4, 5, 11 and 13. The value-document processing apparatus 100 has an input module 2, an operating module 3, an output module 4, an additional output module 11, a coupling module 13 and a crushing module 5, which are closed by a protective cover 6.

[0080] The value documents to be processed by the value-document processing device 100 are placed in the input module 2 arranged on the left side of the operating module 3. For this purpose, the input module 2 comprises an input grid 7 which accommodates a stack of value documents. These value documents are then separated by a separator and checked by a measuring system with a check sensor in the form of a measuring section, for example to check authenticity and / or their denomination and / or their circulation capacity.

[0081] The operating module 3 is connected to the input module 2 and is provided with a rejection grid 24 in which the valuable documents rejected due to the measurement in the input module 2, for example, valuable documents identified as forged valuable documents or valuable documents that cannot be clearly identified by the inspection sensor in the input module 2, are stacked. The remaining valuable documents are further conveyed along the conveying path in the valuable document processing device 100 to the output module 4, where they are output in the form of bundles or stacks. For this purpose, the output module 4 has a plurality of stackers, if necessary, a binder and a valuable document output grid 15. The optional additional output module 11 increases the output of the valuable document processing device and has two output stackers 14 without binders for this purpose, in which more valuable documents can be output in the form of loose piles. In the final shredding module 5, valuable documents identified as unsuitable for circulation, for example damaged or severely contaminated valuable documents, can be destroyed and then output to a safe grid for disposal.

[0082] A speed adaptation device 12 is contained in the coupling module 13 connecting the output module 4 and the crushing module 5 in order to change the transport speed of the value documents along the transport path from the transport speed of the output module 4 to a lower or higher transport speed of the crushing module 5. Different transport speeds in the modules or compensation of jitters of the drives of the individual modules can be achieved by means of the speed adaptation device 12 installed between the modules.

[0083] Alternatively or additionally, one or more speed adapters 12 may also be provided between the other modules 2, 3, 11 and 4 in order to adjust the transport speed of the value documents along the transport path from the transport speed of the respectively preceding module to the transport speed of the respectively following module. This is particularly advantageous if decentralized drives are used for the different modules in the value-document processing device 100.

[0084] Figure 4bA device 1000 is shown with two value-document processing devices 101 and 102, which are arranged one behind the other along a transport path 10 for value documents. The first value-document processing device 101 has a first device module 4 and the second value-document processing device 102 has a second device module 5. Between the two device modules 4 and 5 there is a coupling module 13 which has one or more speed adaptation devices 12 which accelerate or decelerate the value documents from a first transport speed v1 of the first value-document processing device 101 to a second transport speed v2 of the second value-document processing device 102.

[0085] Figure 5 A third embodiment of an apparatus for transporting value documents is shown with a speed adaptation device 12, which has four driven transport roller pairs R1-R4 in sequence along a transport path 10. The leading transport roller pair R0 transports the value document 1 to the speed adaptation device 12 at a first transport speed v1, and the trailing transport roller pair R5 continues to transport the value document 1 from the speed adaptation device 12 at a second transport speed v2. The rotational speeds of the transport roller pairs R0 and R5 are constant. For the transport roller pairs R1-R4 of the speed adaptation device 12, the rotational speed is modulated.

[0086] The control device S of the speed adaptation device 12 controls the transport roller drives MR1 ​​- MR4 of the four transport roller pairs R1 - R4 such that the acceleration of the respective value document from the first transport speed v1 to the second transport speed v2 takes place in four discrete stages.

[0087] exist Figure 5 In the speed diagram below, the distance x covered by the leading edge of the respective value document is shown on the abscissa axis, and the track speeds v(R0), v(R1), v(R2), v(R3), v(R4) and v(R5) of the transport roller pairs R0-R5 when the leading edge of the respective value document passes the respective transport roller are shown on the ordinate axis. For ease of illustration, the relevant position of the value document along the transport path 10 is shown below v(R0) in the diagram.

[0088] The rotation speed of the transport roller pair R1 has a target rotation speed v(R1.Soll) = v1. As soon as the leading edge of the value document enters the clamping area of ​​the following transport roller pair R2, the current rotation speed of the transport roller pair R1 during operation changes and increases from its own target rotation speed v(R1.Soll) to the target rotation speed v(R2.Soll) of the following transport roller pair, see figure v(R1).

[0089] The conveying roller pairs R2 - R4 have a target rotational speed v(Rn.Soll), where n = 2, 3, 4. The current rotational speeds of the corresponding conveying rollers R1 - R4 during operation vary between the following three values:

[0090] - The target rotational speed v(Rn-1.Soll) of the previous conveying roller;

[0091] - Its own target rotational speed v(Rn.Soll); and

[0092] - The target rotational speed v(Rx+1.Soll) of the subsequent roller.

[0093] Where the following applies:

[0094] - v(Rn) < v(Rn.Soll) or v(Rn) = v(Rn-1.Soll) until the leading edge of the banknote enters the clamping area of the conveying roller pair Rn;

[0095] - v(Rn) accelerates from v(Rn-1.Soll) to its own target rotational speed v(Rn.Soll);

[0096] - The valuable document is conveyed at the target rotational speed v(Rn.Soll) until it is subsequently clamped by the conveying roller pair Rn+1;

[0097] - Once the leading edge of the valuable document enters the clamping area of the subsequent conveying roller pair Rn+1, it further accelerates from v(Rn.Soll) to v(Rn+1.Soll).

[0098] After acceleration, the valuable document runs at the speed of the conveying roller pair Rn+1 until the trailing edge leaves the clamping area of the conveying roller pair Rn. Subsequently, the conveying roller pair Rn is decelerated to the rotational speed v(Rn) = v(Rn-1.Soll) for the next valuable document (n = 1 - 4).

[0099] To ensure that the rotational speed of the corresponding conveying roller pair Rn (n = 1 - 4) follows the rotational speed of the subsequent conveying roller pair Rn+1 (which is greater than the target rotational speed v(Rn.Soll)), the rotation of the corresponding conveying roller pair Rn is actively accelerated synchronously with the motor speed of the conveying roller Rn+1. Alternatively, the corresponding conveying roller pair Rn can be equipped with a freewheel to adapt to higher rotational speeds.

[0100] To provide two acceleration clamping positions for the corresponding valuable document, the distance along the conveying path between the conveying roller pairs R1 and R2 or R2 and R3 or R3 and R4 is selected to be less than the length of the valuable document. This reduces the risk of the valuable document floating / sinking / tilting, i.e., the risk of the valuable document tilting or shifting laterally to the right or left during acceleration.

Claims

1. A device (5) for conveying valuable documents (1), comprising a conveying device (3a-b, 21-24, R0-R5), which is designed to convey valuable documents individually and successively along a conveying path (10) and has at least one front conveying mechanism (21, 22, 3a, R0) and at least one rear conveying mechanism (23, 24, 3b, R5) along the conveying path, the front conveying mechanism providing a first conveying speed (v1) for the valuable documents conveyed by it, the rear conveying mechanism providing a second conveying speed (v2) for the valuable documents conveyed by it, the second conveying speed (v2) being different from the first conveying speed (v1), It is characterized in that The device (5) has a speed adaptation device (12) having at least one transport roller pair (25, 26, R1-R4) arranged along a transport path (10) between a front transport mechanism and a rear transport mechanism, and The speed adaptation device (12) is designed to change the transport speed (v) of the valuable document (1) transported at a first transport speed (v1) toward the speed adaptation device from a first transport speed to a second transport speed (v2) by means of the at least one transport roller pair (25, 26, R1-R4), in particular by changing the rotation speed of at least one transport roller of the at least one transport roller pair.

2. The device according to claim 1, It is characterized in that The speed adaptation device (12) has at least one transport roller drive (MS, MR1-MR4) for at least one transport roller pair (25, 26, R1-R4) and a control device (S) for controlling at least one transport roller drive, the control device being configured to control at least one transport roller drive (25, 26, R1-R4) so ​​that the transport roller drive rotates at least one, preferably two, of the transport rollers of at least one transport roller pair (25, 26, R1-R4) at a variable rotational speed, in particular at a modulated rotational speed.

3. The device according to claim 2, It is characterized in that The control device (S) is configured to change, in particular modulate, the rotational speed of at least one transport roller of at least one transport roller pair (25, 26, R1-R4) by means of at least one transport roller drive (MS, MR1-MR4) of at least one transport roller pair, so that the transport speed of the corresponding valuable document is changed from a first transport speed (v1) to a second transport speed (v2) by the action of at least one transport roller (25, 26) rotating at the modulated rotational speed.

4. The device according to any one of claims 2 to 3, It is characterized in that The control device is designed to drive one or two transport rollers of at least one transport roller pair (25, 26, R1-R4) via at least one transport roller drive so that at least one transport roller pair continuously changes the transport speed (v) of the corresponding valuable document from a first transport speed to a second transport speed.

5. The device according to any one of the preceding claims, It is characterized in that At least one sensor (L, L1, L2) is arranged in the area of ​​the front transport mechanism and / or at the transition between the front transport mechanism and at least one transport roller pair of the speed adaptation device, and the sensor is designed to record the valuable documents being transported past and transmit a sensor signal corresponding to the recording time to the control device, wherein the control device is designed to control the starting time at which the track speed of the corresponding transport roller of the transport roller pair is changed from the first transport speed based on the sensor signal transmitted by the sensor.

6. The device according to any one of the preceding claims, It is characterized in that The control device (S) of the speed adaptation device (12) has information about a first conveying speed (v1) of a preceding conveying mechanism and information about a second conveying speed (v2) of a succeeding conveying mechanism and based on this information controls at least one conveying roller drive (MS, MR1-MR4) of at least one conveying roller pair, in particular controls a change in the rotational speed of at least one conveying roller of at least one conveying roller pair.

7. The device according to any one of the preceding claims, It is characterized in that - the distance between the last engagement point of at least one transport roller pair (25, 26, R1-R4) and the first engagement point of the downstream transport mechanism (23, 24, 3b, R5) is smaller than the length of the value document, and / or - the distance between the last meshing point of the upstream transport mechanism (21, 22, 3a, R0) and the first meshing point of at least one transport roller pair (25, 26, R1-R4) along the transport path is smaller than the length of the value document, wherein the upstream transport mechanism is preferably equipped with an integrated free wheel.

8. The device according to any one of the preceding claims, It is characterized in that Observing along the transport path, the speed adaptation device (12) has only one transport roller pair (25, 26) between the front transport mechanism and the rear transport mechanism, and the control device is designed to modulate the rotation speed of at least one transport roller of the transport roller pair (25, 26) by means of a transport roller drive so that the track speed of the at least one transport roller varies, in particular periodically varies, between a first transport speed (v1) and a second transport speed (v2) of the valuable document.

9. The device according to any one of the preceding claims, It is characterized in that The speed adaptation device (12) has at least two transport roller pairs (R1-R4), which are arranged along the transport path between a front transport mechanism (R0) and a rear transport mechanism (R5) and are arranged in sequence along the transport path, and the speed adaptation device has a plurality of transport roller drives (MR1-MR4) for these transport roller pairs, wherein the control device is configured to control the transport roller drives (MR1-MR4) of the transport roller pairs (R1-R4) so ​​that the corresponding valuable documents are brought from a first transport speed (v1) to, in particular accelerated or decelerated to, a second transport speed (v2) by the rotation of the transport roller pairs (R1-R4).

10. The device according to claim 9, It is characterized in that The speed adaptation device (12) has at least one first transport roller pair (R1) and at least one second transport roller pair (R2) and, if necessary, further transport roller pairs (R3, R4) along the transport path between the front transport mechanism (R0) and the rear transport mechanism (R5), wherein the first transport roller pair and the second transport roller pair and, if necessary, the further transport roller pairs are arranged in sequence along the transport path, and wherein the control device is designed to control the transport roller drives (MR1-MR4) of these transport roller pairs (R1-R4) so ​​that the valuable document is brought from a first transport speed (v1) to, in particular accelerated / decelerated to, an intermediate transport speed (vR2.Soll-vR4.Soll) by means of the first transport roller pair (R1) in a first stage and is brought from the intermediate transport speed to, in particular accelerated / decelerated to, a second transport speed (v2) in one or more further stages by means of the second and, if necessary, further transport roller pairs (R2, R3, R4).

11. The device according to any one of claims 9 to 10, It is characterized in that The transport roller pairs of the speed adaptation device (12) have a distance relative to each other along the transport path which is smaller than the length of the value document.

12. A device (100, 1000) for processing valuable documents, the device having - a device (5) for conveying value documents according to any one of the preceding claims, and a first equipment module (4) and a second equipment module (5), the first and second equipment modules being arranged one behind the other along a transport path for the value documents, in, The front conveying mechanism (21, 22, 3a) belongs to a first equipment module (4), and the rear conveying mechanism (23, 24, 3b) belongs to a second equipment module (5), wherein the first equipment module (4) in particular has a first module drive for driving the front conveying mechanism, and the second equipment module (5) has a second module drive for driving the rear conveying mechanism.

13. The device according to claim 12, It is characterized in that The second equipment module is a component of the same valuable document processing device (100) as the first equipment module, or the second equipment module (5) is a component of a different valuable document processing device (102) located downstream of the valuable document processing device (101) of the first equipment module (4) along the transport path of the valuable documents.

14. The device according to claim 12 or 13, It is characterized in that At least one conveying roller pair (25, 26, R1-R4) of the speed adaptation device (12) is arranged at the end of the first equipment module (4) or the starting end of the second equipment module (5), or arranged between the first equipment module and the second equipment module, for example, arranged in a coupling module (13) located between the first equipment module and the second equipment module.

15. A method for transferring a value document (1), in particular by means of a device (5) according to any one of the preceding claims, in, The value documents (1) are transported individually and successively along a transport path (10) by means of transport devices (3a-b, 21-24), wherein - conveying the value document at a first conveying speed (v1) to a speed adapting device (12) with at least one conveying roller pair (25, 26) by means of at least one upstream conveying mechanism (21, 22, 3a), and - a speed adaptation device changes the transport speed (v) of the respective value document from a first transport speed to a second transport speed (v2) of the downstream transport mechanism (23, 24, 3b) by means of at least one transport roller pair (25, 26, R1-R4), the second transport speed being different from the first transport speed (v1), and - the respective value document is further transported along the transport path at a second transport speed (v2) by means of a downstream transport mechanism (23, 24, 3b).

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