DE19952699A1 - Multi-strand energy supply unit has first end region that is meander-shaped in essentially vertical plane in first end position, essentially stretched in second end position, looped in between - Google Patents

Abstract

The device has first and second end regions for connection to the movable and fixed devices and at least one cable accommodation channel with linked segments. The first end region is meander-shaped in an essentially vertical plane in a first end position and essentially stretched in a second end position. A device forms a loop-shaped region in an intermediate position that is maintained until the first end position is reached. The device has a first end region (1) for connection to the movable device, a second end region (2) connected to the fixed device and at least one cable accommodation channel (3) at least partly formed by linked segments (4). The first end region is meander-shaped in an essentially vertical plane in a first end position and essentially stretched in a second end position. A device forms a loop-shaped region in an intermediate position that is maintained until the first end position is reached.

Description

The invention relates to a power supply unit for guiding at least one Line between a fixed facility and one in a horizonta len level reciprocating facility with the features of the waiter concept of claim 1.

WO 97/21048 is at least one energy supply unit for guiding a line between a fixed facility and one in a hori zontal level floating device known. The energy guide tion unit has a first end region which is connected to the movable input direction is connectable. A second end range is with the fixed one direction connectable. The energy supply unit has at least one Lei channel, which is connected by articulated segments is formed. The segments can be according to WO 97/21048 Act chain links that are articulated together. The chains links can be of different shapes and forms. Another embodiment of the chain links is shown in WO 95/28581.

The line intake channel can also consist of segments made of art Substantially in one piece in an approximately flat, flat configuration sprayed or poured and connected to each other by bendable bridges are a segment with a bottom with a top and a bottom side and has at least one wall, which by bending and / or folding towards the top of the bottom and mechanically closing one Locking mechanism to be formed into a closed channel section  can. Such an embodiment of a line receiving channel describes DE 197 10 489 A1. Further embodiments of Kabelaufnahmeka EP 0 544 027 A1 and EP 0 544 051 A1 describe channels.

The known power supply units are designed so that the line receiving channel, forming a first run and a parallel one led second runs and a loop-like transition between the is bendable in both runs. With such a configuration of the energy supply unit, the runs are arranged one above the other.

The installation manual "Cable carriers made of plastic" D 05.97 sheet 3.03 to sheet 3.31 from Kabelschlepp GmbH discloses further installation variants of cable carrier units.

With longer travels of the energy supply unit, it is necessary to use a Provide duct construction in which the energy supply unit is guided. The channel construction influences the total cost of the energy supply system stems to a not inconsiderable degree. For certain applications the provision of a guide channel may not be possible. This is in particular this is the case when the reciprocating device with its be movable energy supply unit via a passage, for example from Vehicles are used, must be moved. In such a case, must a guide channel can be completely dispensed with, which leads to the disruption of the loading can guide the energy supply chain.

The second end area, which can be connected to the fixed device is preferred for energy chains that are in a horizontal plane perform a linear movement in the middle of the planned travel to arrange. The energy supply unit can then be relative to the specified one second end area in both directions by half the planned ver move the way. There is a need for that due to limited  or special space the fixed point at which the second end area must be arranged from the maximum extended point of the move are displaced from the first end area, the length of the possible travel. In such applications, the use such energy supply units may be limited.

Proceeding from this, the present invention is based on the object Specify energy supply unit that has a compact structure and with the relatively large travels are possible without a guide channel being mandatory necessary is.

According to the invention, this object is achieved by a power supply unit solved the features of claim 1. Advantageous further education and training designs of the energy supply unit are the subject of the dependent An claims.

The power supply unit according to the invention for guiding at least one Line between a fixed facility and one in a horizonta len level reciprocating device has a first end region on, which can be connected to the movable device. A second end area can be connected to the fixed device. The energy supply unit furthermore has at least one line receiving channel which is defined by ge segments connected in an articulated manner are formed. The energy supply Unit is essentially in a first end position of the first end region chen vertical plane meandering. In a second terminal development of the first end region, the energy supply unit is essentially ge stretches. The energy supply unit according to the invention has means through when reaching an intermediate position between the first and the second end position lies through the first end area during a transfer tion of the same from a position which lies behind the intermediate position into the  first end position, at least one loop-shaped region is formed which remains essentially unchanged until the first end position is reached.

The structure of the energy supply unit according to the invention is one compact energy supply unit provided because of the meandering Arrangement of the energy supply unit in a first end position of the first End area the installation length of the energy supply unit is significantly smaller than the possible travel. In that means are provided through which when reaching an intermediate position between the first and the second End position lies through the first end area during a transfer of the the same from a position that lies behind the intermediate position to the first end position at least one loop-shaped area is formed which up to Reaching the first end position remains essentially unchanged, it will suffices that after that the first movable end region by a predetermined Travel has been moved, the energy supply unit in its original Starting position, d. H. in the position in which the first end region is its first End position takes, can be retracted so that after unfolding the meandering energy supply unit, this back into the meandering folded energy supply unit can be brought.

According to an advantageous embodiment of the energy supply unit is pre suggest that the means at least one substantially rigid Section of the line receiving channel include two flexible Ab cut is connected. Due to the essentially rigid Ab cut ensures that when the first end portion is transferred from egg ner position, which lies behind the intermediate position, we in the first end position at least a loop-shaped area is formed, which until the first end position remains essentially unchanged. In particular, too through the substantially rigid section a rearing up Avoid flexible sections of the energy supply unit.  

According to yet another advantageous embodiment of the energy supply system It is proposed that in the first end position it is essentially S- is looped in shape, the substantially rigid section at least partially forms an intermediate strand. Above the intermediate strand is a provided upper strand, the end of which forms the first end region. Below a lower strand of the intermediate strand is provided. The lower strand shows a free end, which the second end portion of the energy supply unit forms. The S-shaped energy guiding unit is preferably like this arranged that the two end regions are arranged diametrically opposite one another become. The direction of movement of such an energy supply unit is in front preferably in such a way that to reach the second end position of the first Endbe is richly led over the second end area.

According to yet another advantageous embodiment of the energy chain it is proposed that the length of the individual strands be substantially the same is.

According to yet another advantageous embodiment of the invention Energy chain is proposed that the length of each strand essentially 25% of the maximum possible distance between the first End position and the second end position of the first end region corresponds.

According to a still further advantageous embodiment, it is proposed that the substantially rigid section by rigidly ver together bound segments is formed. The external appearance of the segments can the outer appearance of the segments of the flexible Ab have cuts so that there is also an optical impression that the energy chain is made up of the same segments.

Instead of rigidly connected segments, it can be essentially rigid trained section can also be formed by a hollow profile. The hollow profile  can be divided into several chambers, in which different lines are arranged.

Problematic with an energy supply unit that is in a first end position of the first end region in a substantially vertical plane mig is looped, the leadership of the energy supply unit from the second End position in which the energy supply unit is essentially stretched in the first end position in which the energy supply unit meanders is looped. According to yet another embodiment of the energy supply chain is proposed that adjacent to the first end region at least one Carrier is provided. In one between the driver and the second Longitudinal section of the line receiving channel is little At least one counter-driver cooperating with the driver is provided hen. The counter driver is on at least one segment of the line take channel arranged. When the energy supply unit is transferred From the second end position to the first end position, the at least one is worn out fen-shaped section between the driver and the counter driver trained so that the energy supply unit in the meandering configuration ration can be transferred.

The driver is preferably designed so that it is up to the neighbors beard strand stretches. The driver is preferably through two tabs formed between which the adjacent strand lies. Form these tabs at the same time a guide, so that a lateral deflection during the movement the energy supply unit is avoided. This makes it easy with means also ensure that the energy supply unit in the first end position their meandering arrangement is achieved when this is from one of the first End position differing position transferred to this first end position becomes.  

The funds, in particular drivers and counter-drivers can also with the further means, the at least one rigid section, can be combined. This can be particularly useful if the ge meandering looped power supply unit a variety of arranged one above the other has th strands.

According to yet another advantageous embodiment of the invention, struck that the meandering in the first end position of the first end region shaped looped power supply unit an upper strand and an un tere strand and an intermediate strand, which by curvature cuts are connected with mutually opposing radii of curvature. The the first end region and the second end region are diametrically opposite arranged. The first end range is possible from its first end position che second end position movable in the direction of the second end region. The at least one counter-driver is arranged on the intermediate strand so that this in the first end position essentially adjacent to the curvature section is. In particular, it is proposed that the counterparty on Transition area between the curvature section and the intermediate strand is arranged.

In order to improve the smooth running of the energy supply unit, it is proposed that that a ramp is provided adjacent to the second end region. On this Ramp slides the energy supply unit when the first end area is moved becomes.

Since the energy chain according to the invention for relatively large travels is suitable, it is proposed that at least one guide means be provided is by which a lateral movement of the neighboring superimposed Strands is at least partially prevented. This measure will effectively achieved that the movement of energy runs smoothly management unit is achieved.  

In particular, according to a still further advantageous embodiment, the Energy supply unit proposed that the guide means on both sides and in essentially transversely to the longitudinal direction of the energy supply unit gene.

According to yet another advantageous embodiment of the energy supply unit is proposed that the guide means rotatable on a segment the power supply unit are attached. In particular, it is proposed that the rotatable guide means are arranged so that they are in the area of the star ren section of the power supply unit are arranged. This will on the movement of the rigid section of the energy supply unit occurring frictional forces minimized, so that the stress on the Ge redirect the flexible sections of the energy supply unit is gert.

According to yet another advantageous embodiment of the energy supply system Unit is proposed that the guide means are skid-shaped. In particular, it is proposed that the guide means have at least one slide Have surface with a low coefficient of friction.

Further details and advantages of the energy supply according to the invention are based on the embodiments shown in the drawing explained. Show it:

Fig. 1 shows a first embodiment of a power unit in a first end position of the first end,

FIGS. 2a-e diagrammatically the movement sequence in snapshots from a first end position into a second end position and back,

An energy supply unit Fig. 3 schematically shows a second embodiment according to the Invention,

Fig. 4a-e schematically the movement sequence of snapshots in the second embodiment of a power unit,

5 schematically shows a third embodiment of an approximation unit Energiefüh.,

FIGS. 6a-e schematically the movement sequence of the third game Ausführungsbei an energy supply unit,

Fig. 7 a perspective view of an end portion of a power unit with a driver and a stop,

Fig. 8 shows schematically and in perspective a portion of an energy supply unit with counter drivers and

Fig. 9 a second end portion of a power unit with a ramp.

Fig. 1 shows schematically a first embodiment of a power supply unit 5 according to the invention for guiding at least one line between a fixed device and a device which can be moved back and forth in a horizontal plane. The energy supply unit has a first end region 1 . The first end region 1 can be connected to a movable device (not shown). The energy supply unit has a second end region 2 . This is ver bindable with a fixed device, which is not shown. A line receiving channel 3 is provided between the first end region 1 and the second end region 2 . This is at least partially formed by articulated segments 4 .

Fig. 1 shows the energy supply unit 5 in a first end position of the first end portion 1. In this end position of the first end region 1 , the energy supply unit 5 is meandering in an essentially vertical plane. The embodiment of Fig. 1 shows that the energy management unit 5 is essentially S-shaped. The energy supply unit 5 has a substantially rigid section 6 , which forms part of the line receiving channel 3 . The rigid section 6 is connected to two flexible sections 7 , 8 . In the illustrated embodiment, the essentially rigid section 6 partially forms an intermediate strand 10 . It lies between an upper strand 9 and a lower strand 11 . The upper strand 9 is connected to the intermediate strand 10 by a flexible curvature section 12 . The intermediate strand 10 is further ver connected by a flexible curvature section 13 with the lower strand 11 . In the exemplary embodiment, the radii of curvature of the curved sections 12 , 13 are the same. This is not absolutely necessary. The radii of curvature of the curvature sections 12 , 13 can also be designed differently.

Fig. 2a to 2e show schematically the movement sequence of the Energiefüh approximation unit 5 in snapshots.

Fig. 2a shows the energy supply unit 5 in a position in which the first end portion 1 is in its first end position EE. In this first end position EE, the energy supply unit 5 is meandering in an essentially vertical plane.

Arrow B indicates the direction of movement of the first end region 1 , in which the first end region moves from the first end position EE.

FIG. 2b shows the energy supply unit 5 in a snapshot in which the energy supply unit 5 is partially stretched. It shows that the first Endbe rich 1 has been moved so far that the upper strand 9 has been completely transferred to the level of the intermediate strand 10 . When the movement of the first end region 1 in direction B continues, the rigid section 6 , which forms the intermediate strand 10, is towed, the curved section 13 and the flexible section 8 of the lower strand 11 behaving like a conventional energy supply unit.

Fig. 2c shows the energy supply unit 5 in an extended position. In this position, the first end region 1 has assumed its second end position ZE. It goes without saying that the first end region 1 can assume any position between the first end position EE and the second end position ZE. A position S is indicated by dashed lines in FIG. 2c. ZS denotes an intermediate position that lies between the first end position EE and the second end position ZE.

If the first end region 1 is transferred from the second end position ZE into the first end position EE, the first end region 1 moves in the direction of the arrow R. During this movement, a loop-shaped region 17 is formed , as shown in FIG. 2d. The loop-shaped region 17 forms until the first end region 1 assumes an intermediate position ZS during the rearward movement. When the first end region 1 has reached the intermediate position ZS, the flexible section 7 , which forms the upper strand 9 , lies above the rigid section 6 , which forms the intermediate strand 10 in the first end position EE. If the movement of the first end region 1 from this intermediate position into the first end position EE continues, the loop-shaped region 17 of the energy supply unit 5 remains essentially unchanged until the first end region 1 assumes its first end position EE. In this case, the rigid section 6 exerts a compressive force on the flexible section 8 , so that the curved section 13 moves in the direction of movement R, so that the flexible section 8 is transferred into its starting position, in which it forms the lower strand 11 .

Fig. 2e shows the energy supply unit 5 after the first end portion 1 again occupying its first end position EE.

The first end region 1 can be moved into any positions S possible between the two end positions EE and ZE. If the first end region 1 is moved into a position S which lies between the defined intermediate position ZS and the first end position EE, only the upper strand 9 is moved. If the first end region 1 is moved into a position S which lies behind the defined intermediate position ZS, the energy supply unit as a whole is moved.

With Ls the entire possible travel path of the energy supply unit 5 is characterized. The individual strands of the energy supply unit have the length Ls / 4 in the illustrated embodiment. This is not absolutely necessary. The length of the individual strands can be different.

Fig. 3 shows schematically a second embodiment of a Energiefüh approximation unit 5 in a first end position of the first end EE. 1 The energy supply unit 5 is looped meandering in this first end position EE of the first end region 1 . It is essentially S-shaped. The energy supply unit 5 has an upper strand 9 , which is formed by a flexible section 7 . An intermediate strand 10 is provided below the upper strand 9 and is formed by a rigid section 6 . The upper strand 9 and the intermediate strand 10 are section 12 connected by a Krümmungsab. Below the intermediate strand 10 , a lower strand 11 is provided, which is formed by a flexible section 8 . The intermediate strand 10 and the lower strand 11 are connected to one another by a curved section 13 , which is also flexible.

The energy supply unit 5 has two spaced-apart guide elements 15 , 16 . In the exemplary embodiment shown, the guide elements 15 , 16 are arranged essentially in the transition region between the rigid section 6 and the flexible section 7 or the flexible section 8 . This is not absolutely necessary. The guide elements 15 , 16 are rotatably arranged on the line receiving channel 3 . They have an essentially circular cross section. There are two guide elements 15 , 16 provided on the opposite sides of the line receiving channel 3 . The diameter of the guide elements 15 , 16 is greater than the height of the intermediate strand 10 .

In Fig. 3 is shown a further dock 14. The ramp 14 is arranged adjacent to the second end region 2 of the energy supply unit 5 . The movement sequence, as shown in FIGS. 4a to 4e, corresponds essentially to the movement sequence of the energy management unit shown in FIG. 2, so that in order to avoid repetition reference is made to this movement sequence.

During a movement of the first end region 1 from the first end position EE, the curvature section 12 is displaced. The Krüm ment section 12 rolls on the ramp 14 , so that a difference in height between a floor and the lower strand 11 is equalized by the ramp 14 . The guide elements 16 , which are arranged in the region of the second end region 2 , serve here as guides for the moving upper strand 9 .

If the energy supply unit taken 5 4b position shown in Fig. Inserted and the energy supply unit further procedure 5, the rigid portion 6 and the intermediate string 10 is supported by the rotatable Füh approximately elements 15, moved on the floor 16, so that the Frictional forces of the energy supply unit are reduced overall. If the energy supply unit is moved again into the first end position EE of the first end region 1 , the guide elements 16 act as guides for the upper strand 9 . If the energy supply unit 5 has assumed the position shown in FIG. 4d, the rigid section 6 causes a compressive force on the lower strand 8 during a further displacement in the direction of the first end position EE. The strand 8 is accordingly moved into its original position, forming a loop-shaped region 17 . Here, the guide elements 15 engage. The lower strand 11 and the intermediate strand 10 are moved over the Ram pe 14 .

In FIG. 5, a further embodiment of a power unit 5 is illustrated. The energy supply unit 5 is used to guide at least one line between a fixed device and a device that can be moved back and forth in a horizontal plane. It has a first Endbe rich 1 , which can be connected to a movable device, not shown. A second end region 2 of the energy supply unit 5 can be connected to a fixed device, not shown. Between the end regions 1 , 2 there extends a line receiving channel 3 , which is formed by segments 4 which are connected to one another in an articulated manner. In a first end position EE of the first end region 1, the energy supply unit 5 assumes an essentially meandering shape, as shown in FIG. 5. The energy supply unit 5 has means by which when reaching an intermediate position, which lies between the first end position EE and a second end position ZE, through the first end region 1 during a transfer thereof from a position which lies behind the intermediate position into the first end position, at least one loop-shaped region is formed, which remains essentially unchanged until the first end position EE is reached.

The energy supply unit shown in Fig. 5 has adjacent to it most end portion 1 on at least one driver 18. In a region lying between the driver 18 and the second end portion 2 of the longitudinal portion of the line receiving channel 3 at least one counter catch cooperating with the catch 20 is provided. In the illustrated embodiment example according to FIG. 5, a stop 19 is seen spaced apart from the driver 18 .

In Figs. 6a to 6e snapshots are schematically BEWE a supply flow of the energy supply unit, as shown in FIG. 5, FIG.

FIG. 6a 5 shows the energy supply unit in a position in which the first end portion 1 is in its first end position EE. By moving the first end region 1 in the direction of the second end region 2 , the upper strand 9 of the energy supply unit is partially transferred into an intermediate strand 10 , as shown in FIG. 6b. The driver 18 comes to rest against the stop 19 . As a result, the force acting on the segments 4 , which is necessary in order to transfer the first end region 1 to the second end position ZE shown in FIG. 6c, is introduced into the segments via the driver and the stop, so that the segments 4 in the Curvature section 12 are relieved.

The arrangement of the driver 18 and the stop 19 can also be provided if necessary in the exemplary embodiments of the energy supply units shown in FIGS. 1 to 5.

In FIG. 6c of the first end portion 1 has its second end position ZE is taken.

If the first end region is moved in the opposite direction R, a loop-shaped region 17 is formed. Here, the driver 18 comes to rest against the counter driver 20 , so that the loop-shaped section which is formed between the driver 18 and counter driver 20 and remains essentially unchanged when the first end region 1 moves further. FIG. 6d shows the loop-shaped portion 17 which has formed between the driver 18 and the counter catch 20th

If the movement of the first end region 1 is continued, the driver 18 exerts a compressive force on the counter driver 20 . Since the counterpart 20 is connected to a segment 4 of the line receiving channel 3 , this compressive force is introduced into the line receiving channel 3 . The direction of the pressure force corresponds to the direction of movement of the first end region 1 . Here, the lower strand 11 is shifted into the original position until the first end region 1 assumes its first end position EE, as shown in FIG. 6e. It is understood that the movement sequences shown in FIGS. 6a to 6e are only schematic. The first end region 1 can assume any position between the first end position and the second end position, the construction of the energy guiding unit always permitting the energy guiding unit to be arranged in a meandering shape when the first end region 1 assumes its first end position EE.

The driver 18 can be substantially fork-shaped, so that the line receiving channel is guided between the fork-shaped driver. This can also ensure that a lateral deflection of the line receiving channel 3 is avoided.

Fig. 7 shows schematically and in perspective the first end region 1 of an energy management unit with segments 4 adjoining the first edge region 1 , which form the energy management unit. The segments 4 shown in FIG. 7 are formed by chain links. Each chain link has two spaced-apart side plates, which are connected to one another by traverses running transversely to the longitudinal extension of the energy supply unit. The adjacent segments 4 have overlapping areas. In this range Be articulated connections are formed.

The first end region 1 is connected to a driver 18 . In the Darge presented embodiment, the driver 18 is U-shaped. It has two legs 22 spaced apart from one another. These are connected via a common base 21 . The driver 18 shown in FIG. 7 is formed in one piece. Bores 23 are provided for fixing the driver to a support or support. Fasteners can be passed through these holes. The driver 18 can also be connected to the first end region 1 . For this purpose, the legs 22 Boh stanchions 24 through which he can extend connecting means, not shown, which are connected to the side tabs of the first end region 1 .

The length of the free legs 22 is dimensioned such that they extend into the lower part of the sub. Fig. 7 shows that the leg 22 overlap the segments of the Unterrums partially. The distance between the legs 22 is preferably somewhat larger than the width of the segments 4 . With the reference numeral 25 Fa are designated. Through the legs 22 guidance of the energy supply unit is achieved, so that a lateral deflection during the movement of the energy supply unit is avoided. Through the legs 22 it is also sufficient that if a lateral deflection of the energy supply unit occurs, this is eliminated by the tabs, so that the upper run is always stored above the lower run.

Fig. 7 shows a further stop 19. This stop 19 is arranged on a segment 4 . In the illustrated embodiment, the stop 19 is formed by a pin 26 . The pin 26 can also be a hinge axis about which the adjacent segments of the energy supply unit can be pivoted. On the pin 26 a stop body 27 is arranged on. The stop body 27 is fixed by a nut 28 . For this purpose, the pin 26 has a corresponding thread. The stop body 27 is bush-shaped. A corresponding stop 19 is preferably arranged on the opposite segment, so that the tabs 22 come into abutment with the stops 19 when the power supply unit moves.

Fig. 8 shows a portion of a power unit, which is formed by articulated interconnected segments 4. Each chain link Be tenlaschen 29 , which are connected by an upper cross member 30 and by a lower traverse 31 . In the space between the Be tenlaschen 29 and the upper cross member 30 and the lower cross member 31 lines, which are not shown in Fig. 8, are performed. The side straps 29 have hinge areas at their end regions, so that two adjacent side straps are connected to one another in an articulated manner.

Fig. 8 also shows two counter-drivers 20 which are arranged on the opposite side plates. The counter driver 20 are formed by Zap fen 26 and stop body 27 , which are arranged on the pin 26 , ge. To fix each stop body 27 , a nut 28 is provided, which is connected to a corresponding thread of the pin 26 . The design of the counter drivers 20 corresponds to the design of the stops 19 . In the illustrated embodiment, the pin 26 can also form an articulated axis. However, this is not absolutely necessary. The pins 26 can also be connected to the side straps 29 .

Both the stops 19 and the counter drivers 20 can also be made of plastic. These can be formed in one piece with the side flaps.

In order to clarify the ramp shown in FIG. 3, by means of which the difference in height between a floor and the lower strand is compensated for, we refer below to FIG. 9. FIG. 9 shows the second end region 2 with a adjoining section of an energy chain, which is formed by segments 4 . In the embodiment shown in FIG. 9, the segments 4 are formed by links. This is not absolutely necessary.

The ramp 4 has a fastening section 32 at one end. The fastening section 32 is angled. The angle by which the fastening supply section 32 is angled relative to the tread 33 is selected such that the fastening section 32 can preferably be laid flat on a support. For this purpose, the fastening section 32 has bores 33 through which, for example, screws can be passed, which can be connected to corresponding nuts or threaded sections.

The section 34 of the ramp 14 opposite the fastening section 32 is preferably in the same plane as the edges 35 of the energy supply unit 35 . The section 34 can also be connected to the second end region 2 .

The embodiment of the energy management unit shown in FIG. 5 can also be combined with the embodiments of the energy management unit shown in FIGS . 1 to 4. The embodiments shown in the figures represent only preferred configurations of the energy supply unit according to the invention. Through the teaching of the invention, energy management units are also possible which not only have three strands arranged one above the other when the first end region assumes its first end position. The energy supply unit can also have four, five or any number of strands. In the case of several strands, the combination of a rigid channel with a driver and counter-driver can be expedient. It is also possible to implement energy supply units with more than three strands by appropriately extending the driver and by providing additional counter drivers.

Reference list

1

first end area

2nd

second end area

3rd

Line intake channel

4th

segment

5

Energy supply unit

6

rigid section

7

,

8th

flexible section

9

top strand

10th

Intermediate strand

11

lower strand

12th

,

13

Section of curvature

14

ramp

15

,

16

Guide element

17th

loop-shaped area

18th

Carrier

19th

attack

20th

Counterparty

21

Base

22

leg

23

drilling

24th

drilling

25th

Weird

26

Cones

27

Stop body

28

mother

29

Side tabs

30th

upper traverse

31

lower traverse

32

Fastening section

33

Tread

34

section

35

edge
EE first end position
ZE second end position
s position
Zs intermediate position
Ls total travel

Claims (18)

1. Energy guiding unit for guiding at least one line between a fixed device and a device that can be moved back and forth in a horizontal plane, with a first end region ( 1 ) that can be connected to the movable device, a second end region ( 2 ) that with the fixed device can be connected and with at least one line receiving channel ( 3 ) which is at least partially formed by articulated segments ( 4 ), characterized in that the energy supply unit ( 5 ) in a first end position (EE) of the first end region ( 1 ) in an essentially vertical plane is meandering and in a second end position (ZE) of the first end region ( 1 ) is essentially stretched and that means ( 6 , 18 , 20 ) are provided by means of which, when an intermediate position (ZS) is reached, between the first (EE) and the second end position (PA) is situated, by the first end portion (1) w during a transfer thereof from a position (S), which lies behind the intermediate position (ZS) in the first end position (EE), at least one loop-shaped region (17) is formed, which until reaching the first end position (EE) substantially unchanged remains. 2. Energy supply unit according to claim 1, characterized in that the means comprise at least one substantially rigid section ( 6 ) of the line receiving channel ( 3 ) which is connected to two flexible sections ( 7 , 8 ). 3. Energy supply unit according to claim 2, characterized in that in the first end position (EE) it is substantially S-shaped, the essentially rigid section ( 6 ) at least partially forming an intermediate strand ( 10 ). 4. Energy supply unit according to claim 2 or 3, characterized in that the length of the individual strands ( 9 , 10 , 11 ) is substantially the same. 5. Energy supply unit according to claim 4, characterized in that the length of the individual strands ( 9 , 10 , 11 ) essentially 25% of the maximum possible distance between the first end region ( 1 ) in the second end position (ZE) and the second end region ( 2 ). 6. Energy supply unit according to one of claims 2 to 5, characterized in that substantially rigid section ( 6 ) is formed by rigidly connected segments ( 4 ). 7. Energy supply unit according to claim 2 to 5, characterized in that the substantially rigid section ( 6 ) is formed by at least one hollow profile. 8. Energy supply unit according to one of claims 1 to 7, characterized in that adjacent to the first end region ( 1 ) at least one driver ( 18 ) is provided that in the longitudinal section between the driver ( 18 ) and the second end region ( 2 ) At least one counter-driver ( 20 ), which is connected to at least one segment ( 4 ) and cooperates with the driver ( 18 ), is provided for the line-receiving channel ( 3 ), the energy-carrying unit ( 5 ) being transferred from the second end position (ZE) to the first end position (EE) the at least one loop-shaped section ( 17 ) is formed between the driver ( 18 ) and the counter driver ( 20 ). 9. Energy supply unit according to claim 8, characterized in that in the first end position (EE) of the first end region ( 1 ) meandering energy supply unit ( 5 ) an upper strand ( 9 ) and a lower strand ( 11 ) and an intermediate strand ( 10 ) which are connected by curvature sections ( 12 , 13 ) with mutually opposing radii of curvature, that the first end region ( 1 ) and the second end region ( 2 ) are arranged diametrically opposite one another, that the first end region ( 1 ) from its first end position (EE) in the possible second end position (ZE) can be moved in the direction of the second end region ( 2 ) and that the at least one counter-driver ( 20 ) is arranged on the intermediate strand ( 10 ) in such a way that in the first end position (EE) it is essentially adjacent to the curved section ( 13 ) is. 10. Energy supply unit according to one of claims 1 to 9, characterized in that a ramp ( 14 ) is provided adjacent to the second end region ( 2 ). 11. Energy supply unit according to one of claims 1 to 10, characterized in that at least one guide means ( 15 , 16 ) is provided, by which a lateral movement of the adjacent superimposed strands ( 9 , 10 , 11 ) is at least partially prevented. 12. Energy supply unit according to claim 11, characterized in that the guide means ( 15 , 16 ) protrude on both sides and substantially transversely to the longitudinal direction of the energy supply unit. 13. Energy supply unit according to claim 11 or 12, characterized in that the guide means are formed by the driver ( 18 ). 14. Energy supply unit according to one of claims 8 to 13, characterized in that the driver ( 18 ) is formed by two tabs ( 22 ) which are each arranged on the opposite sides of the first end region ( 1 ). 15. Energy supply unit according to claim 14, characterized in that the tabs ( 22 ) at least partially overlap the adjacent strand. 16. Energy supply unit according to claim 12, characterized in that the guide means ( 15 , 16 ) are rotatably arranged on a segment ( 4 ). 17. Energy supply unit according to claim 12, characterized in that the Guide means are skid-shaped. 18. Energy supply unit according to claim 12, 16 or 17, characterized characterized in that the guide means with at least one sliding surface have a low coefficient of friction.