DE102011005002B4 - Turning device for turning, in particular palletized, loads such as stacks of boards or similar packages of semi-finished parts - Google Patents

Abstract

Turning device (1) for turning, in particular palletized, loads (99) such as stacks of boards or similar packages on semi-finished parts, - wherein the turning device (1) comprises a first (10) and a second (20) turning table; - Wherein the turning tables (10, 20) for synchronous turning by 180 ° about a common axis of rotation (2) are rotatably mounted; - At least one turning table (20) against the other turning table (10) is mounted movable in a plane; - Wherein each turning table (10, 20), each with a rail (11 a, 11 b, ..., 21 a, 21 b, ...) formed support pallet (11, 21) cooperates, of which a support pallet (11) a lower (12) and the other support pallet (21) provides an upper (22) support plane for loads to be turned (99); - Wherein or in the rails (11a, 11b, ..., 21a, 21b, ...) of each support pallet (11, 21) wholly or partially a perforated rail bolt plug system (30) with planned distributed insertion holes (31) is formed, - And wherein in the side of the loads to be turned (99) remaining insertion holes (31) of the lower support plane (12) forming support pallet (11) vertically extending stanchions for securing the loads to be turned (99) can be inserted; characterized in that - each Runge is designed as a telescopic, a defined stroke (H) having telescopic stanchion (40) at maximum lifting height (Hmax) the loads to be turned (99) such vertical projecting beyond that with Verfahrung the one or both Turning tables (10, 20) to the application of both support levels (12, 22) to be used loads (99) each inserted Teleskoprunge (40) between the support planes (12, 22) is jammed.

Description

The present invention relates to a turning device for turning, in particular palletized, loads such as stacks of boards or comparable packages of semi-finished parts according to the preamble of patent claim 1.

Semi-finished parts such as especially boards, but also chipboard, etc., are usually handled palletized, as their piecewise handling time would be much too costly and time consuming. As a board or Blechabwicklung called the unbent state of a rolled sheet, which is for the production of a three-dimensional sheet metal part - in particular by bending, deep drawing or similar forming techniques - needed. For reasons of a possible damage-free transportability more tailored sheet metal developments are usually stacked after their passage through a blanking device and so palletized tied by metal and / or plastic bands, so that the stacked boards not possible move against each other. Such set board stacks can then be transported largely without problems for further processing primarily within the company. The same applies to comparable packages of palletized semi-finished parts.

From the DE 81 10 297 U1 a pallet with double platform known, which is formed from support base and shelf and the slightly offset against each other holes individually and in groups has been assigned, which serve to accommodate limiting rods for locking and fixing patched cargo.

The DE 20 2009 012 885 U1 discloses a pallet for storage and transport of goods such as in particular round bodies, in the top of a plurality of preferably equal distances to each other having openings are provided, engage the projections of at least two the respective round body between them holding wedges form-fitting.

Turning devices for turning, in particular palletized, loads such as stacks of boards or similar packages to semi-finished parts, have the task of turning entire stacks of palletized semi-finished parts by 180 °. For example, is from the DE 202 15 478 U1 a palletizer / depalletizer for particular Bleckpakete in sheet metal bearings known which comprises a frame and a receiving device for the laminated core, wherein the frame has a load frame and a contrast movable lifting frame with the receiving device, and wherein in the frame of the load frame received laminated core with on the other hand, the recording device driven on the head side can be turned into a ready-to-use position by approximately 180 °. The reasons for turning over board stacks, for example, are generally processing-related. In particular, in the automotive industry and its suppliers (eg press shops) is increasingly turning the use of laminated cores or already on the raw dimensions of a fender, a door, a hood, etc. precut sheet metal (or boards) required. Finally, it should be ensured that the production-related resulting better smoothness and thus higher resistance side having each rolled sheet is turned before its transformation in the press line by 180 ° on the smoother side and forms in the three-dimensional sheet metal part to be formed from the outside. Another requirement for the use of stacked semi-finished parts such as sheets, boards, chipboards, etc., for example, in no inconsiderable cases due to the transport conditionally damaged bottom stack packet stack, you do not want to stack the undamaged layers above it individually.

Turning the semi-finished parts of a palletized stack individually would be too time-consuming and labor-intensive. Also, the use of palletized loads by means of a turning device for reasons of safety at work is recommended. Manual turning is always an increased safety risk for the employees, especially in the case of larger semi-finished parts. Ultimately, the risk of material damage during manual turning is considerably higher than with automated turning with turning devices. Based on standardized basic designs in appropriate sizes and weight classes, turning devices for turning, in particular palletized, loads such as stacks of boards or comparable packages on semi-finished parts are always designed specifically for the customer.

Known load reversing devices for turning, in particular palletized, loads such as stacks of boards or similar packages on semi-finished parts typically comprise a first and a second turning table, of which at least one table against the other table to clamping surface movable and in the other two tables for synchronous turning by 180 ° are rotatably mounted about a common axis of rotation. Each table usually interacts with a respective support pallet formed from rails, which may be part of the corresponding table, but is preferably a separate component which can be singly and / or binned individually or together with the palletized semi-finished parts. Either way, a support pallet provides a lower and the other support pallet an upper support level for loads to be turned.

In particular, for process-economic reasons, standard turning of non-set semi-finished stacks would clearly be beneficial.

In order to be able to reliably apply non-set semi-finished product stacks, it is known to equip the turning device with a stop which prevents falling out of the semi-finished parts during the turning process. Such a stop but requires a two-sided accessibility to the turning device, which is process-economically often unwanted and in many places because of usually scarce space is not possible.

Alternatively or cumulatively, it is known to clamp non-hardened semi-finished parts stack between the tables with such a force that prevents falling out and a reliable turning is possible even without a stop. However, by means of such turning devices, the simultaneous turning of non-set board stacks always precludes production tolerances usually never identical high Halbfertigteilstapel present and with up to clamping surface movable tables while the highest half-finished parts stack would be securely clamped, but not the or the adjacent stack with lower stack height which risk ran slippery unusable without holding measures from the turning device and possibly cause damage to the turning device itself.

For some time, however, the demand for simultaneous turning of multiple semi-finished parts stack has increased. Especially in the automotive industry today cost reasons left and right fender, left and right door, etc. are mainly pressed together. The turning of individual, non-set board stacks has the disadvantage that the inverted stacks each require a separate assignment and alignment with the pressing tool.

In order not to give room for the associated error and damage potential, the turning of set semifinished product stacks is at least usual and widespread where several semi-finished product stacks must be turned at the same time.

In the rails of each support pallet are usually wholly or partially a perforated rail bolt plug system with planned distributed insertion holes, in the side of the loads to be turned remaining insertion holes of the lower support level forming support pallet vertically extending stanchions for securing the loads to be turned against dropping inserted are.

The rails, which form the support pallets, are usually oriented transversely to the axis of rotation of the turning device for a front-side assembly of the turning device by means of commercial forklift and preferably dimensioned and spaced from each other, that by engaging the tines of the stacker between the rails palletized semi-finished parts stack on the respective support pallet placed on or by engagement of the tines of the truck in the rails formed therefrom pallet itself with or without resting semi-finished parts, in particular palletized stack of boards, in the turning device or can be applied.

The perforated rail bolt plug system formed in the rails is preferably formed from parallel rows r ₁ , r ₂ ,... At insertion holes, wherein adjacent rows r ₁ , r ₂ ,... Are arranged in the longitudinal direction of the rails preferably at a center offset a relative to one another , Other scheduled distributions at insertion holes are also conceivable. Each insertion hole is preferably formed from a pair of holes, which comprises an upper insertion hole and a lower insertion hole arranged to curse, which can be realized in each case by drilling.

If a palletized set semifinished part stack now placed on a support pallet of the type described above by means of a stacker, a part of the planned distributed insertion holes of the perforated rail bolt system is covered by the set Halbfertigteilstapel, another part of the Einstecklöcher, however, remains uncovered.

It is known to insert rigidly formed, vertically extending posts into the uncovered insertion holes lying in the immediate vicinity of the set semifinished part stack. The known stanchions have an undersize relative to the height of the semi-finished part stack to be used in order not to hinder the jamming of the set half-finished part stack between the tables or the respective support pallets. They are also substantially cylindrical in shape to avoid damage to the semi-finished parts stack, for example by sharp corners or contour edges.

Depending on the edition of the set Halbfertigteilstapels on the perforated rail bolt plug system, the first plug-in row r ₁ , r ₂ , ... insertion holes, however, be so far away from the set semi-finished part stack that during turning of the set batch of z. B. slipped overall, so that especially in the case of stacks of skids slip surface and / or lateral edge damage quickly have the whole or partial rejection of the pile result.

To minimize this risk rigid stanchions are known with a foot, the longitudinal axis is arranged eccentrically to the longitudinal axis of the stanchion body. In order to fix the stanchion body of such stanchions in its closest possible position to a set semi-finished parts stack is known to form the foot preferably as octagonal pin and the insertion of the hole rail bolt plug corresponding to corresponding octagonal contour.

Although stanchions with the stem body off-center foot are next possible aligned to the set Halbfertigteilstapel and pluggable, their use is also not completely risk-free. Thus, in particular, it must not be assumed that the setting of a semi-finished part stack always rests tightly against the stack or always keeps under the weight of the stack when passing through the vertical, so that - for example, if the clamping forces are too low - at least individual layers also tied Halbfertigteilstapel particular in or slip through the between a support pallet and the undersized clearance and surface damage to the stack or far more consequential damage, especially at the turning device cause. However, the counteracting high clamping forces in turn have the disadvantage that with the deadlock often damage the outer layers primarily by depressed in this collar bands and / or not clean deburred insertion holes and consequently correspondingly expensive committee on semi-finished parts is accompanied.

Incidentally, it is still on the DE 1 087 784 A which discloses a turning device for heavy plates such as in particular slabs.

The object of the present invention is to provide a turning device which avoids the above disadvantages and which also permits, in particular, the simultaneous 180 ° turning of a plurality of palletized, non-set, semi-finished parts, such as primarily stacked blanks.

This object is achieved by a turning device with the features according to claim 1. Advantageous embodiments and developments, which are used individually or in combination with each other, are the subject of the dependent claims.

The turning device according to the invention is based on generic turning devices characterized in that each Runge is designed as a telescopic, a defined stroke having telescopic handle vertically projecting over the loads to be turned at maximum lifting height that with Verfahrung of one or both tables to the plant both support levels To be used loads each inserted Teleskoprunge is jammed between the support planes.

The telescopic design of the telescopic stems has the advantage that neither an undersize as in the prior art known stanchions still remains the experience of one or both tables until the investment of both levels to be applied to loads a handicap. Rather, the entire load height cross stanchions are provided for the first time, which reliably prevent any lateral breaking out of individual layers. Consequently, for the first time, it is also possible to use a plurality of non-set loads, in particular palletized stacks of boards or comparable packages on semi-finished parts, which is particularly advantageous in the automotive industry.

Finally, by means of telescopic stanchions according to the invention, loads to be turned can be turned particularly gently for the first time, since - unlike in the prior art - the loads do not bear jamming forces or if necessary, they can be applied in such a way that surface damage due to clamping, especially of the outer layers of the loads, is avoided ,

In one embodiment of the invention have Teleskoprungen proven, which are designed in several parts and in particular have a foot, a middle part and a head part. Such a multi-part has the advantage that the individual sections of the stanchion can be formed differently from each other.

Thus, as in the prior art, preferably the longitudinal axis of the foot part can be arranged off-center to the longitudinal axis of the middle part.

Alternatively or cumulatively, the foot part, for example, in a first, the middle part-holding portion according to the invention preferably be designed as Exzenterdrehbolzen so that - preferably over the head part - the middle part relative to the foot part can be rotated relative to the longitudinal axis of the foot part, that the middle part always advantageous Can be brought in directly contacting system to one of the loads to be used and fixed in this position.

Furthermore, as in the prior art, the foot part may be formed in a second, adjoining the pivot pin section as a section, preferably profiled, pin.

Preferably, the telescoping of the stanchions is formed by a central part, which has an upper and a lower center section, which are telescopically formed to each other.

Preferably, according to the invention, at least the outer contours of the telescopic middle sections are designed to engage in a fan-like manner or in a comb-like manner. Compared with the known telescopic principle, in which typically an inner tube is surrounded by an outer tube, which would lead to an avoiding slippage of individual boards to the stop on the inner tube result is always ensured with a comb-like or fan-like interlocking contour of the middle sections that - Regardless of the telescoped stroke - over the entire vertical uniformly extending outer contour is provided at which the boards of a stack exactly to the plant and can be held without slipping in some areas.

In a preferred embodiment of a telescoping middle part, a telescopic part ensuring its telescoping is arranged between the upper and lower middle sections.

Preferably, the spring force of the spring element is designed such that in the unclamped state of a stanchion, the middle sections of the middle parts of the stanchion are held at maximum lifting height.

Finally, it is further preferred that during the passage of one or both tables, starting with the abutment of the head and foot sections on the support planes, the spring element, acting on one or both tables until the two support planes abut against loads to be turned, operates against the travel path Force on the head part exerts such that the telescopic rungs on the foot and head part experiences a secure support between the support levels.

The present invention is particularly suitable for automatic 180 ° turning of a plurality of palletized, non-set, stacks of boards or comparable, in particular packages to, semi-finished parts, which can be turned simultaneously by means of inventive Teleskoprungen for the first time. Conveniently, the maximum lifting height of each telescopic stanchion is greater than the highest stack of stacks to be used. Conversely, the minimum lifting height is lower than the height of the lowest stack of boards to be used, in order to ensure a secure contact of the bearing levels with loads to be turned. While the Teleskoprungen the calculation of the height of the board stack to be used bill each formed correspondingly long, different lengths Teleskoprungsätzen can be provided with varying stack heights, with all Rungensätze a stroke of, for example, at least 50 millimeters has proven sufficient and reliable working.

Additional details and further advantages of the invention will be described below with reference to a preferred embodiment of a turning device for the simultaneous 180 ° turning of a plurality of palletized, unbonded, stacks of boards to which the present invention is not limited, and in conjunction with the accompanying drawings ,

In it show schematically:

1 the turning tables of a turning device together with support pallets for blank stacks in a side view;

2 the two support pallets of the turning tables 1 in a perspective oblique view;

3 the lower support pallet of the turning table 2 together with three stacks of sheets fixed in position by means of telescopic stubs;

4 in isolation one of the in 3 shown Teleskoprungen inserted into a rail of the first edition pallet;

5 the telescopic rungs off 4 in isolation with minimal lift H _min ;

6 the telescopic rungs off 4 in isolation at maximum stroke H _max ;

7 the telescopic rungs off 6 in a side view;

8th the telescopic rungs off 7 in a bottom view;

9 the telescopic rungs off 7 in a plan view; and

10 the telescopic rungs off 4 , plugged into a rail, in a sectional view.

In the following description of a preferred embodiment of the present invention, like reference characters designate like or similar components.

1 shows the turning tables 10 and 20 a turning device 1 according to the invention together with support pallets 11 . 21 for loads to be used 99 as mainly palletized stacks of boards in a side view. For synchronous turning by 180 ° are the tables 10 and 20 around a common axis of rotation 2 arranged rotatably mounted. Around the board stacks to be used 99 between the tables 10 and 20 for example, by means of a stacker (not shown) of the example right in 1 To be able to bring in the page shown is at least one table 20 against the other table 10 between an in 1 shown open position and a in 2 shown closed position stored movable. The travel direction is in 1 indicated by double arrow.

2 showed the two support pallets 11 . 21 the turning table 10 . 20 out 1 in a perspective oblique view. Visible are the turning tables 10 and 20 dimensioned so that between the first 10 and the second 20 Table several palletized, unbound, loads 99 as mainly stacks of boards, preferably by means of a (not shown) commercial forklift, can be introduced. To provide a preferably by means of stapler untergreifbaren support level for the stack of boards 99 is at every table 10 and 20 one from rails 11a . 11b , ...; 21a . 21b , ... formed support palette 11 . 21 arranged, which the bearing levels 12 . 22 for the board stacks 99 provides. Preferably, the rails 11a . 11b , ...; 21a . 21b , ..., which the support pallets 11 . 21 form, transverse to a rotation axis 2 the turning device 1 aligned and spaced apart such that the tines commercial forklift by engagement between or in the rails 11a . 11b , ... or 21a . 21b , ... even enough space to store the stacks of boards 99 at the respective level of support 12 or 22 encounter.

3 shows the lower support palette 11 of the turning table 10 out 2 plus three by telescopic stanchions 40 Position-fixed board stack 99 ,

4 shows one of the in 3 shown Teleskoprungen 40 , plugged into a rail 11b the first edition palette 11 , Recognizable is in the rails 11a . 11b , ...; 21a . 21b , ... of each edition palette 11 . 21 a punched rail bolt system 30 formed, which preferably of parallel rows r ₁ , r ₂ , ... at insertion holes 31 is formed, wherein adjacent rows r ₁ , r ₂ , ... in the longitudinal direction of the rails 11a , ... are preferably arranged at a center offset a to each other. Other scheduled distributions on insertion holes 31 as shown are also conceivable, as far as possible in the vicinity of the board stack 99 telescopic stanchions 40 remain pluggable, which can already come as close as possible to the boards. To minimize material costs and dead weight of the turning device 1 have insertion holes 31 proven, which preferably each as a punched and burr-freed hole pairs 311 . 312 are formed and per hole 31 an upper insertion hole 311 and a lower insertion hole arranged cursing therefor 312 include. The burr relief at least the upper insertion holes 311 on which the loads 99 rest, has the advantage that gratgebingte imprints in the surfaces of the adjacent boards 99 - As partially encountered in the art - and this committee be avoided. In the planned distributed insertion holes 31 of the perforated rail bolt system 30 can now sufficiently many, preferably cylindrically formed Teleskoprungen 40 are plugged, which each stack of boards 99 simultaneous turning by 180 ° in its position to the support pallets 11 . 21 fix.

As in the 4 The following have also been shown in a preferred embodiment of the invention, the use of Teleskoprungen 40 proven, which are designed in several parts and in particular a footboard 41 , a middle part 42 and a headboard 43 exhibit. Such a multi-part has the advantage that the individual sections of a Teleskoprunge 40 may be formed differently from each other. As shown, preferably the foot part 41 in a first, the middle part 42 holding section as Exenterdrehbolzen 411 and in a second, on the pintle portion 411 end subsequent section as a preferably profiled locking pin 412 be educated. Appropriately, the socket pin section 412 for engagement in the hole pair 311 . 312 designed appropriately sized. Also has proven itself when the insertion holes 31 ; 311 . 312 and the socket pin section 412 have a mutually corresponding, in particular form-fitting, geometry. For example, both the holes 31 . 311 . 312 as well as the socket pin section 412 be designed as a square, hexagon, octagon, etc., with an orientation of the stanchion body 42 to the board stack 99 the more detailed can be done, the more edges of the socket pin section 412 and the holes 31 . 311 . 312 exhibit. Have proven particularly useful in this context as octagonal trained geometries, which at least eight to 45 ° each aligned orientations of the stanchion body 42 to a load to be turned 99 permit, of which preferably the one is selected, in which the stanchion body 42 least of all to a load to be turned 99 spaced finds.

Further preferred according to the invention is a central part 42 a stanchion body that has an upper one 421 and a lower one 422 Has center section, which are preferably formed telescopically to each other. Between the top 421 and the bottom one 422 mid section 42 can be arranged a spring element (not shown), the spring force in the unclamped state, the middle sections 421 . 422 and with it the telescope stanchion 40 holds in a maximum lifting height H _max . During the passage of one or both tables 10 . 20 starting with the plant of Kopf- 43 and foot part 41 at the bearing levels 12 . 22 exercises the spring element on further movement of one or both tables 10 . 20 to the plant of both support levels 12 . 22 to be used loads 99 a force acting against the travel on the headboard 43 in such a way that the telescope stanchion 40 over the foot 41 and headboard 43 a secure support between the support levels 12 . 22 experiences.

5 shows the telescope stanchion 40 out 4 in isolation with minimal lift H _min ; 6 the telescopic stanchion 40 out 4 in isolation at maximum stroke H _max . The telescopic design of Teleskoprungen 40 has the advantage that all stakes 40 are equally clamped, so that a secure fixation of the turnable stack of boards 99 is guaranteed.

7 shows the telescope stanchion 40 out 6 in a side view; 8th the telescopic stanchion 40 out 7 in a bottom view and 9 shows the telescope stanchion 40 out 7 in a top view. Recognizable has the multi-part design of Teleskoprungen 40 also to the advantage that the longitudinal axis L _{41 of} the foot part 41 According to the invention preferably eccentrically movable relative to the longitudinal axis L _{42 of} the central part 42 can be formed so that - preferably by hand or by means of a headboard 43 attachable key - the middle part 42 besides headboard 43 over the eccentric turning bolt 411 opposite the socket pin section 412 can be twisted so that the middle part 42 , the headboard 43 and the eccentric pivot pin 411 , Which preferably have the same outer diameter, advantageously always in directly contacting system to a stack of boards to be used 99 can be brought and fixed in a further preferred embodiment in this position.

10 finally shows the telescopic stanchion 40 out 4 once again plugged into a rail 11b in a sectional view.

The present invention can be summarized in a preferred embodiment as follows: Turning device 1 for automatic 180 ° turn of palletized, not set, stacks of boards 99 , By means of telescopic stanchions 40 can also have multiple pcb stacks 99 be turned at the same time. Easy operation thanks to automatic controls and settings. Loading by forklift. The loading and unloading of the Wenders is carried out on its front side.

LIST OF REFERENCE NUMBERS

1

turning device

2

axis of rotation

10

first turning table

11

first edition palette

11a, 11b, ...

Rails of the first edition pallet 11

12

support plane

20

second turning table

21

second edition palette

21a, 21b, ...

Rails of the second edition palette 21

22

support plane

30

Hole bar pin connector system

31

insertion

311

upper insertion holes

312

lower insertion holes

40

telescopic Runge

41

Foot part of a telescopic stanchion 40

411

eccentric pintle portion of the foot part 41 , Eccentric pivot pin

412

Locking pin section of the foot part 41 , Socket pin

42

Center part (plant body)

421

upper middle section of the middle part 42

422

lower middle section of the middle part 42

43

headboard

99

in particular palletised, loads such as stacks of boards or comparable packages on semi-finished parts

r ₁

first row of insertion holes 31 . 311 . 312

r ₂

second row of insertion holes 31 . 311 . 312

a

Center offset between two adjacent rows r ₁ , r ₂ , ... at insertion holes 31 . 311 . 312

L ₄₁

Longitudinal axis of the foot part 41

L ₄₂

Longitudinal axis of the middle part 42

H

stroke

H _max

maximum lifting height

H _min

minimum lifting height

Claims (10)

Turning device ( 1 ) for turning, in particular palletized, loads ( 99 ) such as stacks of boards or similar packages on semi-finished parts, - wherein the turning device ( 1 ) a first ( 10 ) and a second ( 20 ) Turning table includes; - where the turning tables ( 10 . 20 ) for synchronous turning by 180 ° about a common axis of rotation ( 2 ) are rotatably mounted; - at least one turning table ( 20 ) against the other turning table ( 10 ) is mounted movable in a plane; - with each turning table ( 10 . 20 ) with one each of rails ( 11a . 11b , ...; 21a . 21b , ...) formed support palette ( 11 . 21 ), of which the one 11 ) a lower ( 12 ) and the other edition palette ( 21 ) an upper ( 22 ) Support level for loads to be used ( 99 ) provides; - where in the rails ( 11a . 11b , ...; 21a . 21b , ...) of each edition palette ( 11 . 21 ) in whole or in part a perforated rail bolt system ( 30 ) with regularly distributed insertion holes ( 31 ) is formed, and wherein in the side of the loads to be used ( 99 ) remaining insertion holes ( 31 ) of the lower support level ( 12 ) forming pallet ( 11 ) vertically extending stanchions for securing the loads to be turned ( 99 ) are insertable; characterized in that - each stub as a telescopic, a defined hub (H) having telescopic stanchion ( 40 ) is formed, which at maximum lifting height (H _max ) the loads to be turned ( 99 ) so vertically projecting that with the passage of one or both turning tables ( 10 . 20 ) until the two bearing levels ( 12 . 22 ) to loads to be used ( 99 ) one each inserted Teleskoprunge ( 40 ) between the support levels ( 12 . 22 ) is jammed. Turning device ( 1 ) according to claim 1, characterized in that each telescopic stanchion ( 40 ) is formed in several parts and in particular a foot part ( 41 ), a middle part ( 42 ) and a headboard ( 43 ) having. Turning device ( 1 ) according to claim 2, characterized in that the longitudinal axis (L ₄₁ ) of the foot part ( 41 ) off-center to the longitudinal axis (L ₄₂ ) of the middle part ( 42 ) is arranged. Turning device ( 1 ) according to claims 2 or 3, characterized in that the foot part ( 41 ) in a first, the middle part ( 42 ) retaining portion as eccentric pivot pin ( 411 ) is trained. Turning device ( 1 ) according to claim 4, characterized in that the foot part ( 41 ) in a second, on the eccentric pivot pin ( 411 ) end subsequent section as, preferably profiled, socket pin ( 412 ) is trained. Turning device ( 1 ) according to any one of claims 2 to 5, characterized in that each telescopic stanchion ( 40 ) a middle part ( 42 ) with an upper ( 421 ) and a lower ( 422 ) Has center section, which are telescopically formed to each other. Turning device ( 1 ) according to claim 6, characterized in that at least the outer contours of the telescopic middle sections ( 421 . 422 ) are formed fan-like or comb-like interlocking. Turning device ( 1 ) according to claim 6 or 7, characterized in that between the upper ( 421 ) and the lower ( 422 ) Middle section is arranged a spring element. Turning device according to claim 8, characterized in that the spring force of the spring element is designed such that in the unclamped state of a telescopic stanchion ( 40 ) the middle sections ( 421 . 422 ) of the middle part ( 42 ) of the telescopic rungs ( 40 ) are held at a maximum lifting height (H _max ). Turning device ( 1 ) according to claim 8 or 9, characterized in that during the passage of one or both turning tables ( 10 . 20 ) starting with the plant of head ( 43 ) and foot part ( 41 ) at the bearing levels ( 12 . 22 ) the spring element upon further movement of the one or both turning tables ( 10 . 20 ) until the two bearing levels ( 12 . 22 ) to loads to be used ( 99 ) a force acting against the travel on the head part ( 43 ) in such a way that the telescopic rungs ( 40 ) over the foot ( 41 ) and headboard ( 43 ) a secure support between the support levels ( 12 . 22 ) learns.

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