DE102017120700A1 - Transport device and transport method with such a transport device - Google Patents

Abstract

The invention relates to a transport device for transporting piece goods in a transport direction with at least one, a closed loop forming and circumferentially driven transport element. The essential aspect according to the transport device consists in that in the direction of rotation of the transport chain to the at least one drive assembly immediately adjacent transport section has at least one transfer section and a jam section, wherein the at least one drive assembly for relative displacement of the chain links to each other in the transition section and at least partially Driving the already displaced chain links is formed in the jam section.

Description

The invention relates to a transport device for transporting piece goods according to the preamble of claim 1. Furthermore, the present invention relates to a transport method with such a transport device according to the preamble of claim 16.

"Piece goods" in the context of the present invention are in particular "container" such as cans, bottles, tubes, pouches, each made of metal, glass and / or plastic, but also other packaging, especially those for filling of powdery, granular, liquid or viscous products. In the context of the present invention, however, the "piece goods" can also be formed by "containers" such as packages, cartons, trays, boxes or film packs, which each have at least two containers and at least one (re) packaging element.

Transport devices or transporters for transporting piece goods with a plurality of each forming a closed loop and circumferentially driven transport elements, especially in the form of transport chains or hinge bands, are well known. The transport elements each form with their upper, against at least one guide supporting length the common horizontal or substantially horizontal transport plane or surface on which the piece goods stands up with his cargo floor or his floor.

It is also known in this case that the transport elements can not be made in any length, since too large a length between the respective transport chain and the sliding friction forces would exceed the maximum tensile strength of the transport elements, especially in a continuous operation of the transport device. For this reason, it is customary, in particular for transporters of greater length, to provide a plurality of transport devices adjoining one another in the transport direction, whereby the possibility of improved control and / or regulation of the power and / or transport speed of the transport elements, e.g. by a separate drive for each conveyor belt or for a group of conveyor belts results.

From the date of the applicant DE 10 2015 113 435 A1 is a generic transport device for transporting piece goods in a transport direction with at least one, a closed loop forming and revolving driven transport chain known, the formation of a respective closed loop on a front relative to the transport direction deflection and on a relative to the transport direction rear deflection is guided, wherein the transport device between the front and the rear deflection by means of at least one transport chain forms a transport path for the piece goods, wherein for driving the at least one transport chain between the deflecting at least one drive assembly is provided along the transport path with the at least one transport chain is in operative connection, wherein the at least one transport chain a plurality of rotatable and relatively displaceable arranged chain link it has, so that by relative displacement of the individual chain links to each other, the total length of the respective transport chain is variable, and wherein the transport path has at least two transport path sections, each between a deflection and the at least one drive assembly and / or between two in the transport direction following drive arrangements extends.

If it comes along the transport route to a compression of the chain links, so one of the transport chain in a transport route section, and associated with an accumulation of the piece goods located on this transport section, so this already compressed transport section has a relative transport speed of zero compared to the transport direction rearward transport route, in particular the still auflaufenden further chain links. In other words, the piece goods located on this compressed transport section are stationary for a certain time interval of the accumulation and are not conveyed further in the transport direction. If the further chain links which are rearward in relation to the chain links which have already been compressed are then slid onto these already compressed chain links, this can cause a jerky, elastic impact on the already compressed and stationary transport section.

Proceeding from this, the present invention, the object of providing a transport device for transporting piece goods to provide that avoids the aforementioned disadvantages and in particular causes no elastic shock on the already compressed chain links. This object is achieved with the features of claim 1. The subclaims relate to particularly preferred embodiments of the invention.

The essential aspect according to the transport device consists in that in the direction of rotation of the transport chain to the at least one drive assembly immediately adjacent transport section has at least one transfer section and a jam section, wherein the at least one drive assembly for relative displacement of the chain links to each other in the transition section and at least partially Driving the already displaced chain links is formed in the jam section. The transport device according to the invention thus has the decisive advantage that can be realized by providing the at least one drive assembly, for example, a compression or compression of the chain links as well as a further conveying ie driving the example already compressed chain links in the transport direction. By the already compressed or compressed chain links do not stop by the further promotion in the transport direction, there is no elastic impact on the already compressed and now different from the prior art in the direction of transport further promoted chain links even at a run up of the other, seen in the transport direction rear chain links ,
According to a preferred embodiment, it can be provided that the at least one drive arrangement forms an inlet section for a transport section provided as a storage area, on which the piece goods transported along the transport route can be stowed.

According to a further preferred embodiment, it can be provided that the at least one drive arrangement is provided in the transition region of a transport section designed as a storage area.

According to yet another embodiment variant, a rear section forming the transport path and having the drive arrangement as well as a rear run extending below the rear end and having a further drive arrangement can form a traffic jam section. These are in the region of the rear as well as in the region of the return strand in each case in the direction of rotation of the transport chain to the respective drive assembly immediately adjacent transport sections. In this case, both the drive arrangement of the rear and the return strand for relative displacement of the chain links to each other in the respective transition section and for at least partially driving the already displaced chain links in the respective storage section are formed.

According to yet another embodiment variant, it can be provided that the at least one drive arrangement has a first and a second drive device, the first drive device being in operative connection with the transition section and the second drive device with the accumulation section.

According to a further preferred embodiment, it can be provided that the first drive device is designed for relative displacement of the chain links relative to one another in the transition section and the second drive device for at least partially driving the already displaced transport element section in the jam section.

According to a further preferred embodiment, it can be provided that the first section extends between the first and the second drive device and the second section immediately after the transition section in the circumferential direction.

According to a further preferred embodiment, it can be provided that the first and / or second drive arrangement are designed as a toothed roller.

According to a further preferred embodiment, it may be provided that the second drive device associated with the accumulation section is designed as a magnetic tape drive device.

According to a further preferred embodiment, it can be provided that the magnetic tape drive device has at least one, designed as a closed loop and synchronously driven in the direction of rotation with the corresponding storage section of the transport element magnetic tape which is magnetically coupled at its top with the underside of the transport chain at least partially along a coupling path ,

According to a further preferred embodiment, it can be provided that the magnetic tape drive device is in operative connection with the transport chain over the entire coupling path in such a way that a driving force directed in the direction of rotation can be introduced on the transport chain.

According to a further preferred embodiment, it can be provided that the drive arrangement has a single drive device designed as a worm drive, which is designed both for the relative displacement of the chain links relative to one another in the transition section, as well as for the at least partial driving of the already displaced transport element section.

According to a further preferred embodiment, it can be provided that the as Worm drive trained drive device has at least one motor-driven worm, which is in operative engagement with the transport chain.

According to a further preferred embodiment, it can be provided that the worm has a first and a second pitch section, wherein the first pitch section extends along the transition section and the second pitch section extends at least partially along the jam section.

According to a further preferred embodiment, it can be provided that the first pitch section has a greater pitch than the second pitch section.

According to a further preferred embodiment, it can be provided that the pitch in the first and / or second pitch section is adjustable.

Overall, it may be advantageous if the transport chain width two, three or more drive means are provided, esp. If the type after the drive means as in the case of a worm drive can not or almost can not be widened. This has the great advantage that the transport chain is then evenly loaded over the entire width and deformation or lateral displacement of the chain is avoided.

The expression "essentially" or "approximately" in the sense of the invention means deviations from the exact value by +/- 10%, preferably by +/- 5% and / or deviations in the form of changes that are insignificant for the function.

Further developments, advantages and applications of the invention will become apparent from the following description of exemplary embodiments and from the figures. In this case, all described and / or illustrated features alone or in any combination are fundamentally the subject of the invention, regardless of their summary in the claims or their dependency. Also, the content of the claims is made an integral part of the description.

• 1a - 1c eine schematische Seitenansicht bzw. Unteransicht einer beispielhaften Ausführungsvariante einer erfindungsgemäßen Transportvorrichtung
• 1d eine schematische Seitenansicht einer teilweise dargestellten erfindungsgemäßen Transportvorrichtung
• 2a und 2b eine schematische Seitenansicht bzw. Draufsicht einer beispielhaften Transportkette
• 3 eine schematische Seitenansicht einer beispielhaften Transportkette
• 4a und 4b eine schematische Draufsicht auf eine weitere beispielhafte Transportkette in eingefahren bzw. ausgefahrenen Zustand
• 5 eine schematische Seitenansicht einer beispielhaften weiteren Ausführungsvariante einer erfindungsgemäßen Transportvorrichtung
• 6a und b jeweils in Seitenansicht eine erste und zweite Ausführungsvariante einer freigestellten, als Magnetbandantriebseinrichtung ausgebildeten Antriebseinrichtung einer Antriebsanordnung,
• 7 eine schematische Seitenansicht einer beispielhaften weiteren Ausführungsvariante einer erfindungsgemäßen Transportvorrichtung,
• 8 in schematischer Seitenansicht eine nochmals weitere Ausführungsvariante einer erfindungsgemäßen Transportvorrichtung und
• 9 in schematischer Seitenansicht eine Ausführungsform gem. 9 mit nur einer Antriebseinheit.

The invention will be explained in more detail below with reference to the figures of exemplary embodiments. Show it:

• 1a - 1c a schematic side view and bottom view of an exemplary embodiment of a transport device according to the invention
• 1d a schematic side view of a transport device according to the invention partially shown
• 2a and 2 B a schematic side view and top view of an exemplary transport chain
• 3 a schematic side view of an exemplary transport chain
• 4a and 4b a schematic plan view of another exemplary transport chain in retracted or extended state
• 5 a schematic side view of an exemplary further embodiment of a transport device according to the invention
• 6a and b show, respectively in side view, a first and a second embodiment variant of an exempt drive device of a drive arrangement designed as a magnetic tape drive device,
• 7 a schematic side view of an exemplary further embodiment of a transport device according to the invention,
• 8th in a schematic side view of yet another embodiment of a transport device according to the invention and
• 9 in a schematic side view of an embodiment. 9 with only one drive unit.

For identical or equivalent elements of the invention, identical reference numerals are used in the figures. Furthermore, for clarity, only reference numerals in the individual figures are shown, which are required for the description of the respective figure.

The transport device generally designated 1 in the figures serves, for example, for transporting piece goods 2 in at least one transport direction A between each not shown in detail container treatment machines and / or Überubstationen and / or transfer stations and / or transfer stations for the packaging and / or beverage industry.

In particular, the transport device comprises 1 for this purpose at least one, as a closed loop forming and in a direction of rotation U endless circulating driven transport chain 3 . 3 ' . 3 ' For example, as a transport belt, transport chain, hinge belt chain, mat chain or other, for the transport of the piece goods 2 suitable transport elements, may be formed. The transport elements 3 each form with their upper, against at least one in the figures, not shown in detail supporting length the common horizontal or substantially horizontal transport plane or surface on which the general cargo is 2 gets up with his cargo floor or his floor. In this case, several, for example, two, three, four or more transport chains 3 . 3 ' . 3 ' be provided, the mehrzügig, ie transverse or perpendicular to the transport direction A are arranged adjacent to each other, so that the plurality of transport chains 3 . 3 ' . 3 ' at least with a part of their respective upper length of their corresponding loop a common, for example, horizontal transport surface in a transport plane TE train on which the general cargo 2 with its bottom surface can at least partially get up.

On the related to the transport direction A front end 1.1 and in relation to the transport direction A backward end 1.2 is the at least one transport chain 3 . 3 ' . 3 ' each about diverters 4.1 . 4.2 guided, wherein the at least one transport chain 3 especially at its front end 1.1 via a front deflection device 4.1 and at the back end 1.2 via a rear deflecting device 4.2 is guided and located between the front and the rear diverter 4.1 . 4.2 by means of the at least one transport chain 3 a transport route TS for the general cargo 2 trains ( 1 ). The transport route TS on which the piece goods 2 be transported, so in particular of the rear deflector 4.2 in the transport direction A to the front deflector 4.1 educated. The direction of rotation U the at least one transport chain 3 corresponds at least in the area of the transport route TS the transport direction A ,

It can also be provided that the front and / or the rear deflecting device 4.1 . 4.2 is designed to be driven by a motor. For example, the front and / or rear deflection 4.1 . 4.2 as an electric motor, preferably as a gearless electric motor, for example in the form of a directly driven electric motor, preferably in the form of a stepper motor, a servomotor or a torque motor, be formed. The deflection device 4.1 . 4.2 this can be an inside, with the machine frame 1.10 the transport device 1 rotatably connected stator and having an external rotor. The latter may be preferred when using transport chains 3 . 3 ' . 3 ' be provided on its peripheral surface with a chain toothing, one perpendicular to the transport direction A oriented motor axis concentrically encloses. The rotor can in particular with its corresponding toothing the operative connection with the at least one transport chain 3 produce.

The front and rear deflection device 4.1 . 4.2 is located in particular below the transport plane TE arranged. Alternatively, the diverters 4.1 . 4.2 be designed as pulleys, which are rotatably mounted on a machine frame 1.10 the transport device 1 are arranged.

Furthermore, for driving the at least one transport chain 3 between the diverters 4.1 . 4.2 at least one drive arrangement 5 . 5.1 . 5.2 . 5.3 is provided along the transport route TS with the at least one transport chain 3 . 3 ' . 3 ' is in active connection. For example, the respective transport element section 41 . 41 ' the at least one transport chain 3 . 3 ' . 3 ' at the transport level TE remote from each underside at least one drive finger 55 have over which the corresponding chain links 41 . 41 ' with the at least one drive arrangement 5 . 5.1 . 5.2 . 5.3 in operative connection. The at least one transport chain 3 . 3 ' . 3 ' has a plurality of rotatable and relatively displaceable arranged chain links 41 . 41 ' on, so by a relative displacement of the individual chain links 41 . 41 ' to each other the pad density / mean distance of the chain links 41 . 41 ' to each other the respective transport chain 3 . 3 ' . 3 ' is changeable.

The 2a and 2 B show by way of example in a schematic side view and plan view of a transport chain 3 ' for a transport device according to the invention 1 , In this case, the transport chain 3 ' of the 2a and 2 B in particular a plurality of rotatable and relatively displaceable arranged chain links 41 on, so by a relative displacement of the individual chain links 41 to each other the bearing density / median distance of the transport chain 3 ' variable or changeable, that is extendible as well as compressible, is. In particular, the transport chain can 3 ' as a link chain 3 be formed, the more chain links 41 has, which are mutually arranged both rotatable and relative to each other displaceable, such that the total chain length by the relative displacement of the individual chain links 41 mutually variable, that is extendable and compressible, is. The push mobility is in the 2a and 2 B also marked by appropriate arrows, or made clear.

The individual chain links have more detail 41 in each case an elongate support section 42 on, along which both longitudinally extending on both sides and in each case by 180 ° facing away from each other, both a first and a second fork-shaped chain link section 43 . 44 branches. The first chain link section 43 is here by parallel to each other arranged chain links elements 45 formed while the second chain link section 44 through also in parallel mutually arranged chain link elements 46 is formed. The chain link elements 45 of the first chain link section 43 are to the chain link elements 46 the second chain link section 44 along the support section 42 provide mutually offset, so that the chain links elements 45 a chain link 41 in the chain link elements 46 another chain link 41 form an overlap portion in which the chain link elements 45 of a chain link 41 in the chain link elements 46 another chain link 41 meshing intervene.

At the transport level TE opposite bottom can be the corresponding chain links 41 at least one drive finger fixedly arranged on the chain link 55 exhibit. The chain link elements tension 45 the first chain link section 43 and the chain link elements 46 the second chain link section 44 ultimately a common chain link level KE on that with the transport plane TE coincides. In the illustrated embodiment of the 2a and 2 B are in particular 5 chain links elements 45 such as 6 Chain link elements 46 provided, each at the same or approximately equal distance and parallel to each other at the common support portion 42 are arranged and thus a single chain link 41 form.

How the particular 2a removable, have the respective chain links 41 , in particular their respective chain link elements 46 the second chain link section 44 preferably parallel to the chain link plane KE running slots 47 in the form of openings in which one on the chain link elements 45 the first chain link section 43 arranged respective bolt 48 engages, which is also parallel to the chain link level KE can run. In particular, the bolt engages 48 a chain link 41 in the slots 47 an adjacent chain link 41 , such that thereby a relative displacement of the individual chain links 41 each other is made possible by the respective bolts 48 along the corresponding slots 47 be moved. Ultimately, by this relative displacement of the individual chain links 41 to each other the total length of the transport chain 3 changeable, that is variable.

In 3 is another embodiment of a transport chain 3 ' shown in a schematic side view, different from the transport chain 3 ' of the 2a and 2 B especially distinguished by the fact that in the transport direction A seen every second link 41 a straight slot 47 has, however, with respect to the chain link plane KE is inclined, in particular an acute angle to the chain link plane KE having. The remaining slots 47 the other chain links 41 are in their longitudinal extent, as in the 2a and 2 B represented, parallel to the chain link level KE provided.

Is such a trained transport chain 3 ' now compressed, so pushed together, so are the front ends 43 ' of the respective first chain link section 43 a chain link 41 with a parallel to the chain link plane KE running slot 47 opposite a chain link 41 with sloping slot 47 raised, so deflected upwards.

This can be the chain links 41 , whose front ends 43 ' be deflected upward, in the region of the front ends 43 ' one opposite the remaining surface of the chain link 41 have increased coefficients of friction. For example, this can be realized by such a chain link 41 at its front ends 43 ' has a kind of gumming as a surface. Particularly advantageous is thus on the transport chain 3 ' transported general cargo 2 transported effectively.

The 4a and 4b show in a schematic plan view of another exemplary transport chain 3 ' in which, unlike the variant of the 2a and 2 B the individual chain links 41 ' additionally rotatable and variable in length, ie extendable and compressible, are formed. Also in this embodiment of the 3a and 3b indicates the transport chain 3 ' a plurality of rotatable and relatively displaceable arranged chain links 41 ' on, so by a relative displacement of the individual chain links 41 ' to each other the total length of the transport chain 3 ' variable, ie extendible and compressible, is. By the individual chain links 41 ' are also additionally variable in length and rotatably formed, is compared to the embodiment of the 2a and 2 B further increased length variability of the entire transport chain 3 ' reached.

In particular, the transport chain can also be used 3 ' of the 4a and 4b as a transport chain 3 ' be formed, the more chain links in the form of chain links 41 ' has, which are mutually arranged both rotatable and relative to each other displaceable, such that the total transport chain length by the relative displacement of the individual chain links 41 ' is variable to each other. The presentation of the 3a and 3b show a single chain link 41 ' in a retracted state, shown in FIG 4a , as well as in an extended state, shown in 4b ,

More in detail, the chain link 41 ' a first chain link segment 49 and a second one Chain link segment 50 in the picture of the 3a is recognizable. Both the first and the second chain link segment 49 . 50 again has individual chain link elements 51 . 52 on, wherein the chain link elements 51 the first chain link segment 49 and the chain link elements 52 the second chain link segment 50 assigned. Furthermore, each chain link element has 51 . 52 one only schematically in 3b indicated slot 53 in the form of an opening which extends substantially along the longitudinal extension of the chain link elements 51 . 52 extends. At the respective slot 53 each side facing away is between corresponding chain link elements 51 or their associated slots 53 the first chain link section 49 and the corresponding chain link elements 52 or their associated slots 53 the second chain link section 50 one bolt each 54 arranged or carried out. The provided bolts 54 are in particular displaceable along the corresponding slots 53 provided so that the chain link 41 ' in particular variable in length between an in 3a illustrated retracted position and a in 3b formed extended position is formed.

As in particular from the 1a to c and 5 and 7 recognizable, the transport route TS at least two transport sections TSA namely the entrance section TSA 1 and a drain section TSA2 each having between a deflection 4.1 . 4.2 and the at least one drive assembly 5 . 5.1 . 5.2 and / or between two in the transport direction A successive drive arrangements 5 . 5.1 . 5.2 can extend.

A special feature of the transport device 1 is that one in the direction of rotation U the transport chain 3 . 3 ' . 3 ' to the at least one drive arrangement 5 . 5.1 . 5.2 . 5.3 immediately following transport route section TSA at least one transfer section TA1 and a jam section TA2 has, wherein the at least one drive assembly 5 . 5.1 . 5.2 . 5.3 for the relative displacement of the chain links 41 . 41 ' to each other in the transition section TA1 and for at least partially driving the already displaced chain links 41 . 41 ' in the traffic jam section TA2 is trained.

In the embodiment of the 1a to 1c indicates the transport route TS the transport device 1 an inlet and outlet section TSA 1 and TSA2 on, with the expiration section TSA2 immediately adjacent in the direction of rotation U to the entrance section TSA 1 followed.

More in detail, in this exemplary embodiment of the 1a to 1c at least one transport section TSA . TSA 1 . TSA2 , namely here the expiration section TSA2 , The inventively constructed drive assembly 5 . 5.1 . 5.2 on. This can be achieved by the at least one drive arrangement 5 . 5.1 . 5.2 for example, a compression or compression of the chain links 41 . 41 ' in the transition section TA1 of the drain section TSA2 as well as a subsequent forwarding, ie driving, for example, already compressed chain links 41 . 41 ' in the traffic jam section TA2 in the transport direction A can be realized. The compression of the chain links 41 . 41 ' creates a stowage of the transport route TS transported piece goods 2 ,

In the transition section TA1 already compressed or compressed chain links 41 . 41 ' in the traffic jam section TA2 in the direction of rotation U the transport chain 3 . 3 ' . 3 ' continue to be promoted and thus do not stand still, it also comes in a run-up of the other, in the direction of circulation U seen rearward subsequent chain links 41 . 41 ' no elastic impact on the already compressed and now in the traffic jam section TA2 located, further conveyed chain links 41 . 41 ' ,

Here are the chain links 41 . 41 ' the transport chain 3 . 3 ' . 3 ' to the transfer section TA1 the transport section TSA lengthened, so in their solid relative positioning, promoted, in the transfer section TA1 compressed or pushed together and in the dust section TA2 in their compressed, so pushed together relative positioning, further promoted.

The transport section TSA , In particular, can form a storage area on which the along the transport route TS transported piece goods 2 are stowable. In particular, so is the drive assembly 5 . 5.1 . 5.2 in the transition region to a transport section that can be formed as a storage area TSA , intended.

Furthermore, in the 1a to 1c illustrated embodiment of the drain section TSA2 associated drive assembly 5 a first drive device 5.1 and a second drive device 5.2 for driving the at least one transport chain 3 on, wherein the first drive means 5.1 with the transition section TA1 and the second drive means 5.2 with the traffic jam section TA2 is in active connection. In particular, the first drive device 5.1 for the relative displacement of the chain links 41 . 41 ' to each other in the transition section TA1 and the second drive means 5.2 for at least partially driving, or pushing on, the already displaced chain links 41 . 41 ' in the traffic jam section TA2 educated.

More in detail, the transfer section extends TA1 between the first and second drive means 5.1 . 5.2 and the jam section TA2 immediately after the transition section TA1 in the direction of rotation U , This may be the jam section TA2 up to the maximum in the direction of rotation U the transport chain 3 . 3 ' . 3 ' following next deflection 4.1 . 4.2 or additional drive arrangement 5 extend.

In this case, the first and second drive means 5.1 and 5.2 the drive assembly 5 below the transport level TE also on the machine frame 1.10 be arranged. For controlling the first and second drive means 5.1 . 5.2 These can each have a control line 12 with a control unit 11 in operative connection.

The transport device according to the invention 1 can do one, the transport route TS training back HT and one below the back HT running back RT exhibit. In particular, this extends the rear HT between the rear deflector 4.2 in the transport direction A or circulation direction U to the front deflector 4.1 and forms the transport route TS where do the backwaters go? RT between the front deflector 4.1 and the rear diverter 4.2 extends. At least one drive arrangement is particularly advantageous 5 . 5.1 . 5.2 the back HT assigned.

In addition, it can be provided that the return strand RT a further, additional drive arrangement 5 . 5.1 . 5.2 having. It can be provided that the front deflecting device 4.1 the first drive device 5.1 the drive arrangement 5 forms and one related to the front deflecting device 4.1 in the direction of rotation U downstream second drive device 5.2 is provided.

More in detail, the transfer section extends TA1 between the first, as a front deflector 4.1 formed first drive means 5.1 and the second drive means 5.2 and the jam section TA2 immediately after the transition section TA1 in the direction of rotation U the transport chain 3 . 3 ' . 3 ' , In this case, the second subsection TA2 up to the maximum in the direction of rotation U the transport chain 3 . 3 ' . 3 ' following next deflection 4.1 . 4.2 or additional drive arrangement 5 extend.

This is also in the back RT provided drive arrangement 5 for the relative displacement of the chain links 41 . 41 ' to each other in the transition section TA1 and for at least partially driving, or pushing on, the already displaced chain links 41 . 41 ' in the traffic jam section TA2 educated. In particular, this can be additional tensioning and / or deflection devices on the return strand RT , in particular also a chain buffer or chain memory, are dispensed with.

However, the essence of the invention is expressly not to the in 1 illustrated embodiment of a number of a drive assembly 5 . 5.1 . 5.2 for the respective transport chain 3 . 3 ' . 3 ' limited. Rather, it is also possible within the scope of the present invention, for example, depending on the dimensioning of the transport device 1 , ie in particular depending on the length of the transport route TS or the mass of the piece goods to be transported 2 or also the desired geometric design of the transport route TS with straight or curved course, three, four, five or more drive arrangements 5 for the respective transport chain 3 provided.

According to the in the 1a to 1c illustrated embodiment, the first and second drive means 5.1 . 5.2 the drive arrangement 5 as an electric motor, preferably as a gearless electric motor, for example in the form of a directly driven electric motor, preferably in the form of a stepper motor, a servomotor or a torque motor, be formed. The first and second drive means 5.1 . 5.2 in the form of each of an electric motor, for example, an internal, with the machine frame 1.1 the transport device 1 rotatably connected stator and having an external rotor. The latter may be preferred when using transport elements 3 in the form of chains on its peripheral surface with a chain toothing 8th be provided, which are perpendicular to the transport direction A oriented motor axis concentrically encloses MA. Every rotor 7 can in particular with its corresponding teeth 8th the operative connection with the at least one transport chain 3 produce, for example, via a toothed handle of the toothing 8th the rotor 7 with the drive fingers 55 the corresponding transport chain 3 , In this case, the first and second drive means 5.1 . 5.2 have the same or a different number of teeth of the chain teeth. In particular, the first drive device 5.1 a smaller number of teeth than the second drive means 5.2 on. In particular, the first and / or second drive device 5.1 . 5.2 the drive assembly 5 designed as a toothed roller.

The control of the first and second drive means 5.1 . 5.2 the drive assembly 5 can do this via the common control unit 11 carried out, for example, the machine control or a part of the machine control of the transport device 1 or one the transport device 1 having plant is. In particular, the first and second drive means 5.1 . 5.2 the drive assembly in coordination with each other by means of the control unit 11 controlled and / or regulated.

In one embodiment, it may be provided that the process device 11.1 is set up to the respective drive device 5.1 . 5.2 operate in a master-slave coupling. For example, the first and second drive means 5.1 . 5.2 operated in a master-slave coupling, for example, by the first drive means 5.1 by means of the control unit 11 as master, ie master drive, and the second drive device 5.2 by means of the control unit 11 a slave coupled to the master, ie slave drive, trains. It may be provided that the drive units 5.1 . 5.2 alternate in their function as master. In particular, this is a synchronization of the two drive units 5.1 . 5.2 ensured.

For example, the control of the first and second drive means 5.1 . 5.2 the drive assembly 5 through a control routine STR controlled in the control unit 11 is performed. The control unit 11 For this purpose, for example, at least one processor unit 11.1 to execute the control routine STR exhibit. Furthermore, the control unit 11 for example one with the processor unit 11.1 cooperating storage unit 11.2 for at least temporary storage control data SD on, for example, via an interface 11.3 from the control unit 11 over the control lines 12 to the first and second drive units 5.1 . 5.2 be transmitted and / or received.

The control data SD in particular currently comprise at the first and second drive means 5.1 . 5.2 determined actual control data ISD1 . ISD2 such as, for example, a respective actual speed IDZ1 . IDZ2 , Actual direction of rotation IDR1 , DR2, actual rotation angle IDW1 . IDW2 as well as actual torque IDm1 . IDm2 , as well as appropriate target control data SSD1 . SSD2 such as a target speed SDZ1 . SDZ2 , Desired direction of rotation SDR1 . SDR2 , Set angle of rotation SDW1 , SDW2 and setpoint torque SDM1 . SDM2 , Here are the index 1 provided parameters of the first drive means 5.1 and the index 2 provided parameters of the second drive unit 5.2 assigned. Are in further embodiments of the invention, further drive arrangements 5 provided, so will also for these drive arrangements 5 a corresponding parameter set of actual and target data with a corresponding index as control data SD in the control unit 11 deposited.

In particular, the process unit 11.1 be set up to determine the actual control data ISD from the rated current, to operate the respective drive means 5.1 . 5.2 is necessary to a corresponding drive movement by means of at least one transport chain 3 to create. Also, from the temporal change of the rated current and / or the power consumption or its temporal change of the power consumption of the first and second drive means 5.1 . 5.2 on the at least one transport chain 3 generated drive movement to be closed.

The processor unit 11.1 is especially set up over the interface 12.3 to receive received actual control data ISD with target control data SSD and depending on it in control data SD for the control routine STR or to define control commands to the corresponding drive arrangement 5 the corresponding transport route section TSA be transmitted to the respective transport port section TSA depending on the means of the control routine STR generated control data SD driven to drive. In the storage unit 10.2 can also be predefined, ie predetermined, desired control data SSD deposited.

Are several inventively designed transport route sections TSA provided, each transport section can TSA by means of the drive arrangement assigned to it 5 . 5.1 . 5.2 and / or drivable deflection device 4.1 . 4.2 be operated and in particular with compared to the other provided drive systems 5 . 5.1 . 5.2 and / or drivable deflection devices 4.1 . 4.2 coordinated setpoint control data SSD, that is, for example, setpoint speed SDZ, setpoint rotation angle SDW or setpoint torque SDM.

For example, it is provided that the transport sections TSA in coordination with each other with different desired control data SSD, for example, a different target speed SDZ, by means of the control unit 11 be controlled. Through the formation of the transport chain 3 ' . 3 ' according to the embodiments of the 2a and 2 B , or 3a and 3b can thus on the transport route TS individual transport sections TSA with different additional properties, such as accumulation or gap formation between the respective conveyed 2 , will be realized.

Preferably, it can also be provided that the transition and cutting section TA1 . TA2 in the direction of rotation U the transport chain 3 . 3 ' . 3 ' to the at least one drive arrangement 5 . 5.1 . 5.2 immediately following transport route section TSA , in coordination with each other with different desired control data SSD, for example, a different target speed SDZ, by means of the control unit 11 be controlled. Through the formation of the transport chain 3 ' . 3 ' according to the embodiments of the 2a and 2 B , or 3a and 3b can thus on the transition section TA1 the chain links 41 . 41 ' shifted relative to each other, in particular upset, and in the storage section TA2 the already shifted chain links 41 . 41 ' be driven further, so pushed on. For this purpose, it may be provided in particular that the transfer section TA1 the transport section TSA with one compared to the traffic jam section TA2 this transport section TSA higher target speed SDZ is operated. This leads along the transition section TA1 to a shortening of the length of the transport chain 3 . 3 ' . 3 ' by a compression or a pushing together of the individual chain links 41 . 41 ' and thereby to an accumulation of the on this transitional section TA1 the transport route TS piece goods 2 ,

The 1d shows in a lateral schematic representation of a transport device only partially shown 1 in which different from the variant of the 1a to c, at least one of the two drive devices 5.1 . 5.2 namely the first and / or the second drive device 5.1 . 5.2 both with one along the back HT , as well as one along the backwalk RT extending section of the transport chain 3 is in operative engagement. The drive device designed in this way 5.1 . 5.2 At the same time, it drives the transport chain 3 in the area of the rear HT , as well as in the area of the return RT at.

Different from the context of the 1 to 3 described embodiment of a drive assembly 5 . 5.1 . 5.2 in which the first and / or second drive device 5.1 . 5.2 is designed as a toothed roller, show the following 5 to 8th further exemplary embodiments for a drive assembly 5 , for which, as far as not explicitly mentioned in the following remarks, the context of the remarks on the 1 to 3 just said continues to have validity. It also has the embodiment of the 5 a drive arrangement 5 with a first and a second drive device 5.1 . 5.2 on, wherein the first drive means 5.1 as in the embodiment of the 1 to 4 described as a toothed roller and the second drive means 5.2 as a magnetic tape drive device 20 is trained. The drive device in the effective range of the return strand RT in the present case corresponds to the second drive device 5.2 and is as a magnetic tape drive device 20 educated. Possible, but not shown, that the above-described coupling with a toothed roller is also provided in the return strand.

For reasons of clarity, the representation of the control unit has been omitted, but also in the embodiment of the 5 is present and with each of the two drive devices 5.1 . 5.2 via not shown control lines is in operative connection. The control unit is according to the description 1a and b trained.

Here, the first designed as a toothed roller drive device 5.1 the transition section TA1 and the second as a magnetic tape drive device 20 trained drive device 5.2 the traffic jam section TA2 assigned, or is in operative connection with this.

The magnetic tape drive device 20 has at least one, designed as a closed loop and in the direction of rotation U synchronous with the corresponding jam section TA2 of the transport element 3 . 3 ' , 3 "powered magnetic tape 21 Magnetic with the underside of the transport chain at its top 3 . 3 ' . 3 ' along a coupling route KS can be coupled. The magnetic coupling along the coupling path KS is in the description of the 6a and b detailed.

It can also several, for example, two, three, four or more magnetic tapes 21 be provided, the mehrzügig, ie transversely or perpendicular to the direction of rotation U are arranged adjacent to each other and / or spaced, so that the plurality of magnetic tapes 21 at least with a portion of their respective upper length of their corresponding loop with the underside of the transport chain 3 . 3 ' . 3 ' can be coupled. In particular, the magnetic tapes 21 run between the sliding guides not shown in detail, on which the transport chain 3 . 3 ' . 3 ' at least in the area of the transport route TS slidably supported.

With respect to the direction of rotation U front end 20.1 as well as in the direction of circulation U rear end 20.2 is the at least one transport chain 3 each about diverters 4.1 . 4.2 guided, wherein the at least one magnetic tape 21 especially at its front end 20.1 via a front deflection device 22.1 and at its rear end 20.2 via a rear deflecting device 22.2 is guided. Between the front and back end 20.1 and 20.2 forms at the bottom of the transport chain 3 . 3 ' . 3 ' facing side a coupling path KS out, over which the at least one magnetic tape 21 with the transport chain 3 . 3 ' . 3 ' is magnetically coupled.

The direction of rotation U the at least one magnetic tape 21 corresponds at least in the area the coupling route KS the direction of rotation U the transport chain 3 . 3 ' . 3 ' ,

It can be provided that the front and / or the rear deflection 22.1 . 22.2 is designed to be driven by a motor. For example, the front and / or rear deflection 22.1 . 22.2 as an electric motor, preferably as a gearless electric motor, for example in the form of a directly driven electric motor, preferably in the form of a stepping motor, a servomotor or a torque motor, be formed. The deflection device 22.1 . 22.2 this can be an inside, with the machine frame 1.1 the transport device 1 rotatably connected stator and having an external rotor. The latter can be used to initiate the rotational movement on the magnetic tape 21 be educated.

In particular, according to the embodiment of the 5 the expiration section TSA2 the drive assembly 5 associated with the first drive means 5.1 and the second as a magnetic tape drive device 20 trained drive device 5.2 for driving the at least one transport chain 3 having. This is the first drive device 5.1 with the transition section TA1 and the second drive means 5.2 with the traffic jam section TA2 is in active connection. In particular, the transport chain 3 . 3 ' . 3 ' in the area of the traffic jam section TA2 magnetic with the magnetic tape drive device 20 coupled.

In this case, this embodiment of the 5 the first drive device 5.1 for the relative displacement of the chain links 41 . 41 ' to each other in the transition section TA1 and the second drive means 5.2 for at least partially driving, or pushing on, the already displaced chain links 41 . 41 ' in the traffic jam section TA2 educated. More in detail, the transfer section extends TA1 between the first and second drive means 5.1 . 5.2 , in particular between the first drive means 5.1 and the rear diverter 22.2 as a magnetic tape drive device 20 formed second drive means 5.2 , and the traffic jam section TA2 immediately after the transition section TA1 in the direction of rotation U the transport chain 3 . 3 ' . 3 ' , This may be the jam section TA2 up to the maximum in the direction of rotation U the transport chain 3 . 3 ' . 3 ' following next deflection 4.1 . 4.2 or additional drive arrangement 5 extend.

In particular, driving, or advancement, takes place in the accumulation section TA2 at a magnetic tape drive device 20 formed second drive means 5.2 along the entire coupling route KS instead of. In other words, so is the magnetic tape drive device 20 preferably over the entire coupling path KS with the transport chain 3 . 3 ' . 3 ' in operative connection such that one in the direction of rotation U the transport chain 3 . 3 ' . 3 ' directed driving force on the transport chain 3 . 3 ' . 3 ' can be introduced.

In the 6a and 6b are two exemplary embodiments of a magnetic tape drive device 20 trained second drive device 5.2 each shown in a schematic side view. According to the embodiment of the 6a has the at least one magnetic tape 21 a plurality of individual, preferably evenly distributed over the entire circumferential length arranged magnets 25 , in particular permanent magnets, on, which are in the transport chain 3 . 3 ' . 3 ' provided counter magnets 3.1 cooperate, in particular are magnetically coupled. Particularly advantageously, each of the chain links 41 . 41 ' a counter magnet 3.1 on. Preferably, each chain link has 41 . 41 ' a magnet 3.1 on.

Alternatively or in addition to the embodiment of the 6a can according to the embodiment of the 6b in the area of the coupling line KS below the at least one magnetic tape 21 , preferably contact-fit below the at least one magnetic tape 21 , a magnet 26 be provided, the one of such kind sufficient magnetic force with the counter magnets 3.1 the transport chain 3 . 3 ' . 3 ' Provides that in the area of the coupling path KS a frictional engagement between the top of the magnetic tape 21 as well as the underside of the transport chain 3 . 3 ' , 3 "and thus one in the direction of rotation U the transport chain 3 . 3 ' . 3 ' directed driving force over the magnetic tape 21 on the transport chain 3 . 3 ' . 3 ' is transferable or can be introduced. The magnet 26 can be designed as a permanent magnet or electromagnet.

In 7 is a variant of a drive arrangement with a drive device 5.3 shown, both for the relative displacement of the chain links 41 . 41 ' to each other in the transition section TA1 , as well as at least partially driving the already displaced chain links 41 . 41 'in the traffic jam section TA2 is trained. Furthermore, the drive device could 5.3 also at least partially in the entrance section TSA 1 extend, but this is not shown, to the transport chain 3 in the area of the rear deflection device 4.2 drive or lead. The one single drive arrangement 5.3 is as electro-magnetic linear drive as 35 with a variety of moveable on a rail 36 guided mounted movement elements 37 (Movern) trained.

The individual movement elements 37 (Mover) are separately controllable and designed to be movable relative to each other. Especially have the movement elements 37 one permanent magnet each 38 on, via the operative connection with in the transport chain 3 provided magnets 3.1 can be produced. This can be the rail 36 with the movement elements provided circumferentially 37 be dimensioned such that the respective permanent magnets 38 the movement elements 37 both with each 3 in the back HT as well as in the back RT located magnet 3.1 the transport chain 3 in magnetic operative connection. Advantageously, each one or at least every second chain link has this 41 the transport chain 3 a magnet 3.1 on. The in the 7 embodiment shown may of course be provided multiple times or in smaller extent analogous to the other embodiments, so that only the different link transitions are covered. The magnetic coupling is done with the transport chain 3 in an analogous manner, as stated above to the other embodiments.

It is particularly advantageous if the movement elements 37 have in the transport direction one or more parallel guide slots or grooves, into which the drive fingers 55 retract and be recorded. In this case, in one embodiment variant, the finger itself may comprise or be formed from a magnet or ferromagnetic material and in the movement elements 37 At least on one side of the parallel guide slots or grooves, a magnet may be arranged.

The particular advantage of this embodiment is that a completely controlled and guided approach and also renewed spacing of chain links 41 can be done. Hereby maximum smoothness and different degrees of compaction can be achieved, especially if the number of movement elements 37 equal to or equal to half of the chain links, the upper.

Different from the variants of a drive arrangement described in connection with the previous figures 5 . 5.1 . 5.2 in which in each case a first and a second drive device 5.1 . 5.2 are provided, the embodiment of the 8th a drive arrangement 5 with a single drive device 5.3 on that both the relative displacement of the chain links 41 . 41 ' to each other in the transition section TA1 , as well as at least partially driving the already displaced chain links 41 . 41 'in the traffic jam section TA2 is trained.

For clarity, is also in the figure of the 7 has been dispensed with the representation of the control unit, but also in the embodiment of the 7 is present and with the drive device 5.3 via not shown control lines is in operative connection. The control unit is according to the description 1a and b trained.

It can by a single drive assembly 5.3 both a compression or compression of the chain links 41 . 41 ' in the transition section TA1 of the drain section entrance section TSA2 as well as a subsequent forwarding, ie driving, the already compressed chain links 41 . 41 ' in the traffic jam section TA2 in the direction of rotation U respectively.

In particular, it is a single drive device 5.3 as worm drive 30 with at least one motor-driven screw 31 trained with the transport chain 3 . 3 ' . 3 ' is in operative connection, this particular in the direction of rotation U drives. The snail 31 stands in particular with the drive fingers 55 the transport chain 3 . 3 ' . 3 ' in action.

This shows the snail 31 a first and second pitch section SA1 and SA2 on, wherein the first slope section SA1 along the transition section TA1 and the second pitch section SA2 along the traffic jam section TA2 extends. In particular, the first pitch section SA1 compared to the second pitch section SA2 a larger slope, so a larger Wendelungsabstand on.

It can be provided that the pitch, so the Wendelungsabstand the individual helix of the screw 31 , in the first and / or second pitch section SA1 . SA2 adjustable, that is changeable, is formed. It can be provided in particular that the slope ratio of the pitch section SA1 compared to the second pitch section SA2 adjustable, that is changeable, is. It may be provided, in particular, that the pitch ratio and / or the helix spacing is regulated and / or controlled by means of the control unit.

It is understood that in the context of the present invention, the drive arrangements described in the embodiment variants 5 . 5.1 . 5.2 for the inventively designed transport sections TSA in any way, both for the rear HT as well as the back RT can be combined. In particular, in the rear HT one in comparison to the return RT differently shaped drive arrangement 5 . 5.1 . 5.2 be provided. It is also understood that the transport chain 3 . 3 ' . 3 ' . 3 '' when using only one magnetic tape drive device 20 no drive fingers 55 needs to be shown because active compound, So coupling, magnetic and not mechanically produced.

In all embodiments, the jam section TA2 only a section of the drain section TSA2 , where it is immediately clear that the dust section TA2 and the expiration section TSA2 may be identical and that of the jam section TA2 esp. to the end of the transport chain 3 . 3 ' . 3 ' can extend, so up to the height of the front deflector. In this advantageous embodiment, a consolidated group of piece goods 2 in the compacted arrangement unchanged on a subsequent means of transport, such as, for example, pass a conveyor belt.

The invention has been described above by means of exemplary embodiments. It is understood that numerous changes and modifications are possible without thereby departing from the inventive concept underlying the invention. In particular, different variants of the drive units from the preceding embodiments can be combined in a suitable manner.

Above all, can be beneficial, as in 9 illustrated that provide a simplified drive unit in the effective range of the return strand, since there the quality requirements for the congestion behavior of the means of transport is lower, since it is not in operative connection with the cargo.

Alternatively, as in 9 is shown, the transport chain 3 in the area of the return RT have no drive at all, but the transport chain 3 is through a guide channel 60 in which they are on a floor panel 61 slipping up and against rising through one or more covers 62 is protected. The friction creates an unordered jam situation of the chain links in the region of the guide channel 60 , with this disorderly congestion situation in the area of the return RT usually completely sufficient.

LIST OF REFERENCE NUMBERS

1

transport device

1.1

front end

1.2

rear end

1.10

machine frame

2

cargo

3, 3 ', 3 "

transport chain

3.1

magnet

4.1

front deflection device

4.2

rearward deflection device

5

drive arrangement

5.1

first drive device

5.2

second drive device

5.3

driving means

7

rotor

8th

chain teeth

9

carrying axle

11

control unit

11.1

process unit

11.2

storage unit

11.3

interface

12

control line

20

Magnetic tape drive device

20.1

front end

20.2

rear end

21

magnetic tape

22.1

front deflector

22.2

rearward deflection device

25

magnet

26

magnet

30

screw drive

31

slug

35

electro-magnetic direct drive

36

rail

37

mover

38

permanent magnet

41, 41 '

link

42

support section

43

first chain link section

44

second chain link section

45

Chain link element

46

Chain link element

47

slot

48

bolt

49

first chain link segment

50

second chain link segment

51

Chain link element

52

Chain link element

53

slot

54

bolt

55

drive finger

60

guide channel

61

floor panel

62

cover

A

transport direction

TS

transport distance

TE

transport plane

TA1

Transition section

TA2

storage section

TSA

Transport stretch

TSA 1

input section

TSA2

drain section

KE

Links level

KS

coupling path

HT

Hintrum

RT

return run

U

direction of rotation

SA1

first slope section

SA2

second slope section

STR

control routine

SD

control data

ISD1; ISD2

Actual control data

IDZ1, IDZ2

Actual speed

IDR1, IDR2

Actual direction of rotation

IDW1, IDW2

Actual rotational angle

IDM1, IDM2

Actual torque

SSD1, SSD2

Target control data

SDZ1, SDZ2

Target speed

SDR1, SDR2

Setpoint rotational direction

SDW1, IDW2

Target rotation angle

SDM1, SDM2

Target torque

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102015113435 A1 [0005]

Claims (17)

Transport device for transporting piece goods (2) in a transport direction (A) with at least one, a closed loop forming and in a circumferential direction (U) circumferentially driven transport chain (3, 3 ', 3 "), each for forming a closed loop on one with respect to the transport direction (A) front deflecting device (4.1) and via a relative to the transport direction (A) rear deflector (4.2) is guided, wherein the transport device between the front and the rear deflector (4.1, 4.2) by means of at least one Transport chain (3, 3 ', 3 ") forms a transport path (TS) for the piece goods (2), wherein for driving the at least one transport chain (3, 3', 3") between the deflection (4.1, 4.2) at least one drive assembly (5, 5.1, 5.2, 5.3) is provided, which along the transport path (TS) with the at least one transport chain (3, 3 ', 3 ") is in operative connection, wherein the at least one transport chain (3, 3 ', 3 ") a plurality of rotatable and relatively displaceable arranged chain links (41, 41'), characterized in that in the direction of rotation (U) of the transport chain (3, 3 ', 3") at least one transfer section (TA1) and a traffic jam section (TA2) to the at least one drive arrangement (5, 5.1, 5.2, 5.3) immediately adjacent transport section (TSA), wherein the at least one drive arrangement (5, 5.1, 5.2, 5.3) for relative Displacement of the chain links (41, 41 ') to each other in the transition section (TA1) and for at least partially driving the already displaced chain links (41, 41') in the accumulation section (TA2) is formed. Transport device after Claim 1 , characterized in that the at least one drive arrangement (5, 5.1, 5.2, 5.3) is provided in the transition region of a transport section (TSA) designed as a storage area. Transport device according to one of the preceding claims, characterized by a rear section (HT) forming the transport path (TS) and having the drive arrangement (5, 5.1, 5.2, 5.3) and one below the rear end (HT) and a further drive arrangement (5, 5.1 , 5.2, 5.3) having the return run (RT), both in the area of the rear (HT) and in the area of the return run (RT) of each in the direction of rotation (U) of the transport chain (3, 3 ', 3 ") to the respective drive assembly (5, 5.1, 5.2, 5.3) immediately adjacent transport section (TSA) at least a first and storage section (TA1, TA2), wherein both the drive assembly (5, 5.1, 5.2, 5.3) of the rear (HT) as also the drive arrangement (5, 5.1, 5.2, 5.3) of the return run (RT) for the relative displacement of the chain links (41, 41 ') relative to one another in the respective transition section (TA1) and for at least partially driving the already displaced chain links (41, 4 1 ') are formed in the respective accumulation section (TA2). Transport device according to one of the preceding claims, characterized in that the at least one drive arrangement (5) has a first and a second drive means (5.1, 5.2), wherein the first drive means (5.1) with the transition section (TA1) and the second drive means (5.2 ) is in operative connection with the accumulation section (TA2). Transport device after Claim 4 , characterized in that the first drive means (5.1) for relative displacement of the chain links (41, 41 ') to each other in the transition section (TA1) and the second drive means (5.2) for at least partially driving the already displaced transport element section (41, 41') in Jam section (TA2) is formed. Transport device after Claim 4 or 5 , characterized in that extending the transfer section (TA1) between the first and the second drive means (5.1, 5.2) and the second section (TA2) immediately adjacent to the transition section (TA1) in the direction of rotation (U). Transport device according to one of Claims 4 to 6 , characterized in that the first and / or second drive arrangement (5.1, 5.2) are formed as a toothed roller. Transport device according to one of Claims 4 to 7 , characterized in that the jam portion (TA2) associated second drive means (5.2) is designed as a magnetic tape drive means (20). Transport device after Claim 8 , characterized in that the magnetic tape drive means (20) at least one, designed as a closed loop and in the direction of rotation (U) synchronously with the corresponding storage section (TA2) of the transport element (3, 3 ', 3 ") drivable magnetic tape (21), the magnetically coupled on its upper side with the underside of the transport chain (3, 3 ', 3 ") at least partially along a coupling path (KS) which extends at least partially along the accumulation section (TA2). Transport device according to one of Claims 8 or 9 , characterized in that the magnetic tape drive device (20) over the entire coupling path (KS) with the transport chain (3, 3 ', 3 ") is in operative connection such that a in Direction of rotation (U) directional driving force on the transport chain (3, 3 ', 3 ") can be introduced. Transport device according to one of the preceding claims, characterized in that the drive arrangement (5) has a single drive device (5.3) designed as a worm drive (30), which permits both the relative displacement of the chain links (41, 41 ') in the transition section (TA1), as well as for at least partially driving the already displaced transport element section (41, 41 ') is formed. Transport device after Claim 11 , characterized in that the drive device (5.3) designed as a worm drive (30) has at least one motor-driven worm (31) which is in operative engagement with the transport chain (3, 3 ', 3 "). Transport device after Claim 11 or 12 characterized in that the worm (31) has first and second pitch portions (SA1, SA2), the first pitch portion (SA1) extending along the transition portion (TA1) and the second pitch portion (SA2) at least partially along the jam portion (TA2 ). Transport device according to one of Claims 11 to 13 characterized in that the first pitch section (SA1) has a greater pitch than the second pitch section (SA2). Transport device according to one of Claims 11 to 14 , characterized in that the slope in the first and / or second pitch portion (SA1, SA2) is adjustable. Transport method for transporting piece goods (2) in a transport direction (A) with at least one, a closed loop and circumferentially driven transport chain (3, 3 ', 3 "), each for forming a closed loop on a with respect to the transport direction ( A) front deflecting device (4.1) and via a relative to the transport direction (A) rearward deflection (4.2) is guided, and in which between the front and the rear deflector (4.1, 4.2) by means of at least one transport chain (3, 3 ' , 3 ") a transport path (TS) for the cargo (2) is formed, characterized in that a transport device (1, 1 ') is used according to one of the preceding claims. Use of a transport device (1, 1 ') according to one of Claims 1 to 16 for transporting piece goods (2) in at least one transport direction (A) between container treatment machines and / or overfeed stations and / or transfer stations and / or transfer stations and / or a shrink tunnel and / or a palletizer for the packaging and beverage industry.

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