WO2019201680A1 - Cable carrier chain with transverse piece, corresponding side plate and guide arrangement with same - Google Patents

Abstract

The invention relates to a cable carrier chain (1) for guiding lines, wherein the cable carrier chain comprises chain links (2) each with two opposite side plates (3; 4); and the side plates (3; 4) are each connected to one another in an articulated manner so as to be able to pivot about a pivot axis (S) transverse to the longitudinal direction (L) of the cable carrier chain (1) and form two plate strands (8A, 8B), between which an interior space for the lines is provided; wherein on at least some chain links (2), at least one transverse web (5) connects the plate strands to one another. According to the invention, two side plates (3; 4) connected in an articulated manner to one another, together with a transverse piece (10) mounted thereon so as to be displaceable transversely to the longitudinal direction of the cable carrier chain, form a transformation mechanism (11, 41), which converts a relative pivoting of the two side plates (3; 4) into a displacement in translation of the transverse piece (10). The transverse piece (10) can extend laterally when the side plates are pivoted in one direction, and can retract laterally when the side plates are pivoted in the other direction.

Description

Energy chain with cross piece, corresponding side flap and

 Guide arrangement hereby

The invention generally relates to an energy guiding chain for the active guidance of conduits, such as cables, hoses or the like, between two connection points, of which at least one is mobile.

Such energy chain are known. In typical construction, an energy chain has chain links with two opposite side flaps. The side flaps are, usually in overlapping areas, one at a time

Swivel axis transversely to the longitudinal direction of the power transmission chain pivotally connected to each other and form two

Laschenstränge from in the longitudinal direction of the power transmission chain hinged together or linked side tabs. Between the tabs an interior space for the lines is provided. On at least some chain links at least one transverse web is provided, which connects the tab strands with each other.

It is also known, for example, in applications with long travel distances and / or high speeds, energy chains in leadership systems such as guide troughs or the like. respectively. In applications in which one strand, eg the upper strand, with respect to the other strand, eg the lower strand, do not rest or slide down the leadership of the upper strand is not possible without special devices, since the deflection arc must be movable, ie the members against the To extend and retract guidance. For example, special folding systems have been proposed which carry the upper strand, cf. EP 2 419 981 Bl.

This is a safe guide, especially against a deviation of the upper run vertically upwards but not possible.

For smaller construction applications, another solution has been proposed in EP 1 869 744 B1, in which a portion of the side flaps is bent outwards in the extended position. The laterally projecting area serves as a support element on one

Support surface of a guide rail to serve. So the upper run can be held. For high power applications, e.g. high loading weights and or high accelerations, this design is only partially suitable due to the impairment of the side flaps.

A ribbon-like cable routing device with transversely to

Sliding longitudinal axis, adjustable against a spring

Sliding elements were proposed in EP 0490 022 A2 (see FIGS. This is not an actual one

Energy chain in the sense of a link chain, so u.a. the advantage of any cable assembly, lightweight

Line replacement in case of maintenance and punctual repair in case of damage is not given here.

DE 100 53 635 A1 describes a guide arrangement of a

Energy guiding chain with transversely mounted to the side plates sliding rollers and a guide trough. The lower run is placed on the channel floor between the gutter side walls, and the upper run rolls on the basis of the rollers at the top of the

Channel side walls on a wider track. The adjustment of the track width of the rollers is realized by an adjusting device which is arranged on the chain link and has laterally projecting, wedge-shaped sliding elements, which are each connected to a roller. When immersed in the guide channel, the sliding elements are pushed together by the gutter side walls and retract the rollers. The provision for the wider track is made by spring force. This type of leadership arrangement is

noisy, prone to interference and requires to Interaction with the wedge-shaped sliding a special leadership.

It is therefore a first object of the invention, a

Further development of generic cable drag chains

to propose, with which an interaction with

 Guide systems, in particular with a linear or circular guide for at least one of the dreams, is simplified or easier management systems can be used. In addition, a reliable guidance of the energy guiding chain in both directions of the energy guiding chains perpendicular to the longitudinal direction, even in very fast moving applications, is to be made possible.

This object is achieved by an energy guide chain according to claim 1, a guide arrangement according to claim 13 and independently by a side flap according to claim 16.

According to one aspect of the invention according to claim 1

suggested that two hinged together

Side flaps at least one associated transverse to the longitudinal direction of the energy guiding chain, e.g. perpendicular or oblique thereto, slidably mounted crosspiece and a conversion gear, which converts a relative pivoting of both side plates in a translational displacement of the crosspiece. The two mutually articulated side flaps can in particular with the displaceably mounted crosspiece

Form conversion gearbox.

As a result, the crosspiece retract and extend, depending on the relative pivotal position, solely due to the intended

Pivoting movement of the chain links or side plates. The

Crosspiece can thus in particular when pivoting in a

Direction about the pivot axis, e.g. towards the extended position, extend laterally and when pivoting in the other direction about the pivot axis, e.g. in the Umlenklage in the deflection bend, retract laterally. The crosspiece can in particular between a

retracted position and a laterally outwardly projecting beyond the side flaps position, e.g. To order with a guide arrangement with guide rails or the like.

to cooperate. Thus, unlike in the prior art, including complex

Guiding devices with moving parts not required. In addition, the inherent pivotal movement of the tabs is utilized to achieve the translational displacement of the crosspiece between a projecting operative position and a retracted rest position.

The crosspiece is preferably a separate component from the side flaps, which may be made in one or more parts. The shape of the cross piece is arbitrary and

depending on the application. The crosspiece may e.g. as a pin, bolt or the like. be rotationally symmetric and possibly have other components such as rollers.

In a mechanically simple embodiment, the crosspiece is slidably mounted substantially parallel to the pivot axis, e.g. coaxial to the pivot axis of cooperating with the crosspiece chain or side flaps.

In one embodiment, at least one, preferably both side flaps in each case, a receptacle for the crosspiece, wherein the crosspiece is arranged and guided therein preferably coaxially to the pivot axis. The crosspiece may be slidably disposed and guided in the receptacle or receptacles coaxially with the pivot axis, e.g. in the manner of a linear sliding guide.

As a conversion gear come different

 Rotation / translation conversion gear into consideration. Thus, e.g. a kind of wedge drive may be provided on the side flaps, which causes only the displacement to the outside, whereas the resetting inwardly by a run-on slope on the crosspiece and their interaction with the guide, e.g. an inclined surface is effected on a guide rail.

In a preferred embodiment, the conversion gear is designed as a movement thread, screw drive or as a helical gear. In this case, e.g. the crosspiece be the threaded member and at least one side flap a matching

Have mating thread or vice versa. The crosspiece can be held against rotation on the other side flap. In a development with a movement thread or helical gear is preferably provided that the crosspiece, in the manner of a tube, on the outside has at least two Gewindevorsprünge and a recording of a first of the two side plates, so to speak as a counter tube of the helical gear, inside has at least two corresponding thread grooves. So can the

Thread projections in the thread grooves engage around a

Relative rotation of the side plates in the translational

Displacement of the cross piece implement. The thread pitch is application dependent u.a. from the desired displacement path and the predetermined for forming the Umlenkbogens pivoting angle between the side plates or chain links. In a

Further development of this embodiment is provided that the crosspiece has two locking pins on the outside and the

Receiving the other or second of the two side flaps on the inside two axially aligned to the pivot axis

Having guide grooves. As a result, the locking pins can be guided axially displaceably in the guide grooves to hold the cross-piece slidably but rotationally fixed to this second side flap.

In particular, in such a movement thread or

Helical gear for actuating the crosspiece, the first side flap may have a radially disposed first stop surface for the crosspiece, e.g. its locking pin, and the second side flap may have a radially disposed second stop surface for the crosspiece, e.g. the locking pin and / or the

Thread projections, so that the first and second

Stop surface in each case the translational displacement of

Limit cross piece. When the stop surface with the

Locking pin and / or threaded projections _Z have this cooperating preferably end faces perpendicular to the pivot axis.

In the last-mentioned variant, the abutment surfaces of the side flaps can advantageously limit the pivoting angle of the side flaps in both directions about the pivot axis with the crosspiece, in particular with the arresting pins and / or the thread projections, so that no further angle stops have to be provided. This simplifies the design of the

Side flaps. The invention can be realized with different types of tabs. A compact design with motion thread or

Screw gear can be achieved when the tabs alternately arranged first and second

Side flaps, namely inner flaps and outer flaps having. The inner plates have the interior to proximal or overlapping areas and the outer plates in contrast outer or distal overlapping areas, wherein the

Side tabs are hinged on the basis of overlap areas. In this embodiment, it is advantageous if the

Inner tabs and outer plates have cylindrical receptacles for the crosspiece, wherein preferably the inner tab in the receptacle for the crosspiece threaded grooves having with

Thread projections on the cross piece in the manner of a movement thread _Z cooperate. Accordingly, the outer flap in the

Support for the crosspiece preferably axial guide grooves, which cooperate with locking pin on the cross piece _Z to this

translationally displaceable and rotationally fixed to the outer flap to store.

In a further development, in particular of the last-mentioned construction, it is provided that the inner straps and / or the outer straps, preferably both, each have a separate holding part with end-side guide grooves into which a guide projection of the respectively adjacent side tab engages in the mounted state. As a result, the inner plates and outer plates can be stably held to each other laterally to the longitudinal direction and the assembly, in particular with the crosspiece, is simplified. The holding part can be attached to the inner flap and / or the outer flap in any attachment technique, e.g. by screw or locking connection, etc.

The displaceable crosspiece can be designed as a transverse bolt, in particular when arranged coaxially to the pivot axis. For weight reduction and material savings, it is advantageous if the crosspiece is designed as a hollow pin. To a large peripheral surface, in particular for functional elements of the

Implementation gear to provide, has the hollow pin

preferably an inner diameter of at least one third (33%) of the tab height of the side flaps in the plane perpendicular to Chain longitudinal direction is. Even with another approximate cylindrical solid body, a corresponding outer diameter may be provided in order to provide sufficient area, for example for a screw drive.

The side flaps may be made of plastic, e.g. As injection molded parts, are produced inexpensively. The crosspiece can also be made of plastic. If appropriate, the crosspiece is also produced as an injection-molded part, preferably made of another plastic, in particular an artificial material with tribological properties, which produces a tribologically favorable material pairing with the side flaps. Crosspieces and / or side plates made of metal are also possible.

Depending on the application, it may be sufficient to guide at least one of the two ends of the chain, if at least some

Chain links opposite on both sides have a displaceable crosspiece, e.g. every nth chain link. An aligned opposite arrangement of cross pieces on the same

Chain link avoids u.U. occurring torsional forces during the process, in particular in a two-sided leadership.

To increase the number of identical parts and / or one

To ensure reliable trouble-free guidance over long travel distances, it is advantageous if all side straps of both straps have at least one crosspiece.

In particular, this type is possible, but not

mandatory, if by means of sliding cross pieces in the manner of

Chain pin the side plates are hinged together at the same time. The cross pieces can also from the

 Power transmission in the tabs remain free when the side flaps have a suitable other articulation.

According to a further aspect, the invention also relates to a guide arrangement with an energy guiding chain, in particular an energy guiding chain according to one of the above-described

Embodiments, wherein the energy guiding chain forms a first strand, eg a lower strand, and a second strand, eg an upper strand, which is connected to one another by a deflecting bend are. The guide arrangement has two opposite guide rails for at least one of the strands, with which this strand is guided on a given travel path, for example linearly. According to the invention, an energy guiding chain is equipped with adjustable, in particular displaceable cross pieces, which can be displaced by the pivoting movement of the chain links and which engage in the guide rails in an extended position in order to guide the energy guiding chain in these guide rails.

This allows a reliable, escape-proof management of

Energy chain and u.a. the use of particularly simple designed guide rails, in particular a guide arrangement which manages without moving parts to guide the energy chain.

The guide rails may in particular be arranged horizontally or vertically or obliquely to the horizontal.

The guide rails preferably have guide grooves, in which engage the displaceable cross pieces. This type of guide is particularly advantageous for vertical applications.

The displaceable cross pieces can in particular be slidably guided in the guide rails, in particular in the guide grooves. Rollers are not required.

In particular, the guide rails may also have a curve shape or e.g. define a circular sector-shaped path.

According to a further independent aspect, the invention also relates to a side flap as such, which has a transversely, in particular vertically or obliquely, slidably mounted to the main plane of the side flap crosspiece, wherein the side flap and the cross piece are designed to form a conversion gear which pivotal movement of the side flap opposite a translated with this side flap in translational displacement of the crosspiece. For this purpose, for example, a two- or 2n-common movement thread is used, in particular with at least or exactly two thread grooves on the side flap or on the crosspiece and on the other hand at least two cooperating thread grooves on the crosspiece or on the side flap. In particular, a pair of tabs of two mutually pivotally connectable side flaps with a crosspiece which can be slidably mounted on the two tabs form a transfer gear, which serves to implement a pivoting of the side flaps relative to each other in translational displacement of the crosspiece relative to the two side flaps.

Further details, features and advantages of the invention will become apparent from the following detailed description of a preferred embodiment with reference to the accompanying

Illustrations. Hereby show:

FIG. 1: an energy guiding chain according to the invention and FIG

 Guide arrangement with guide rails, in which the energy supply chain is guided (in

 Perspective view);

FIGS. 2A-2C: a partial section of only one tab strand of FIG

 Energy guiding chain according to FIG.l, in side view (FIG.2A), in plan view (FIG.2B) and in front view (FIG: 2C);

FIG. 3: an outer flap in perspective view; FIG.

4 shows an inner flap in perspective view;

FIGS. 5A-5D: a crosspiece designed as a transverse cross from the energy guiding chain according to FIG. 1, in a side view (FIG. 5A) in a plan view (FIG. 5B), in a front view

 (FIG.5C) and in perspective view (FIG.5D);

FIG.6A-6B: two articulated link plates in side view

 (6A) and in cross section along section line VIB-VIB (FIG.6B) in a mutually pivoted position with retracted crosspiece;

FIG.7A-7B: two hinged link plates in side view

(FIG.7A) and in cross section along section line VIIB- VIIB (FIG.7B) in a non-mutually pivoted extended position, with extended crosspiece. FIG. 1 to 7 show a preferred embodiment of an energy guiding chain 1 purely as an example. The energy guiding chain 1 is composed of individual chain links 2, each of them

Chain link 2 here in the longitudinal direction L alternately either two outer plates 3 or two inner plates 4 has. The outer plates 3 and inner plates 4 alternate sequentially in

The longitudinal direction L of the energy guiding chain 1. The outer plates 3 and inner plates 4 are hinged together and form on both sides of the energy chain 1 each a leash strand 8A; 8B. FIGS. 2A-2C illustrate only one tab strand 8A, the opposite (not shown) being identically constructed and arranged in a mirrored manner. In at least some chain links 2, the link plates, here for example only inner links 4 in each case, are stably connected to one another by two transverse webs 5. As a result, the tabs 8A; 8B held parallel. Between

Link plates 3, 4 and the transverse webs 5 forms the

Energy guide chain 1 an interior for not shown here in detail lines, such as cables for power and / or signal supply and / or hoses for media supply a mobile consumer (not shown) of the basis of

Energy supply chain 1 is supplied.

FIG. 1 shows four identically constructed guide rails 6, e.g.

Aluminum profiles, each with an inside guide groove 7, by means of which the upper strand and / or lower strand of the

Energy guiding chain 1 along the predetermined, here linear travel safely guided. Other guideways, e.g. Circular paths are within the scope of the invention. For guiding in the guide grooves 7, according to the invention, special transversely displaceably mounted transverse pieces are provided on both opposite lashing strands 8A, 8B, which in the example shown here

Cross bolt 10, more precisely as a hollow bolt, are executed. Each transverse pin 10 is depending on the relative pivotal position of two

Chain links 3, 4 linked to one another are extended laterally outwards (cf., FIGS. 7A-7B) or retracted into the side flaps 3, 4 (compare FIGS. 6A-6B). The invention particular

Design of the link plates 3, 4 and the cross piece or

Cross bolt 10 will be described in more detail below.

When relative pivoting a pair of outer plate 3 and Inner tab 4 from the extended position (FIG.7A) in the mutually pivoted position (FIG.7B) is retracted the cross bolt 10 and when pivoting in the opposite direction is the

Cross pin 10 extended. Only in the laterally extended position (FIG. 7B) does the transverse bolt 10 engage in the guide grooves 7 of the guide rail 6, i. when pivoting the cross bolt 10 is retracted out of engagement to allow undisturbed movement of the deflecting bow.

To realize this integrated in the chain links

Actuator forms in each case an assembly of an outer flap 3, an inner flap 4 and a cross pin 10 in the example shown a kind of movement thread or

Screw gear to implement the rotational movement of

Link plates 3, 4 in the translational movement of the transverse pin 10. In the example shown, a movement thread is provided, but this is not mandatory.

The transverse pin 10 is for this purpose designed with a substantially cylindrical base body (here as a hollow bolt) with two radially opposite one end formed on an end region

Thread projections 11. The thread projections 11 are as

helical ridges designed and project radially outward from the cylindrical body. The thread projections 11 cooperate with two threaded grooves 41 configured as mating threads and correspondingly have lateral threaded surfaces 11A

corresponding mating surfaces 41A of the thread grooves 41

Interaction, here like a two-speed movement thread. The threaded surfaces 11A and mating surfaces 41A extend helically around the Schenkachse S and symmetry axis A of the transverse pin. The thread pitch is structurally selectable but should not be self-locking. The thread grooves 41 are radial

opposite to a substantially cylindrical receptacle 42 inside the inner plates 4 is provided (FIG.4 shows only one of the two opposing thread grooves 41).

Each transverse pin 10 also has two radially opposite locking pins 12 which protrude externally from the cylinder jacket of the base body. The locking pins 12 are provided with guide surfaces 14. The guide surfaces 14 parallel to each other and to the radial center plane through the axis of symmetry A of the

Transverse pin 10. The locking pin 12 cooperate with parallel to the pivot axis S extending grooves on both cylindrical receptacles 31 together. By the guide grooves 32 and the

Locking pin 12, the cross members 10 are transversely displaceable, but rotatably on the outer plate 3 and held against this non-rotatable. The design of the locking pin 12 and

Guide grooves 32 are also a coaxial to the pivot axis S translation of the transverse pin 10 before. Compared to the

Endseitigen threaded projections 11, the locking pins 12 are arranged closer to the longitudinal center in the longitudinal direction of the crosspiece 10.

The axisymmetric guide grooves 32 in the outer plates 3 are executed like a blind hole and each have a stop surface 33 perpendicular to the pivot axis S. At this stop surface 33 strike frontal abutment surfaces 33 of the locking pin 12 to the maximum displacement transversely to the longitudinal direction L of

Limit energy supply chain. In the opposite direction, the translation of the transverse pin 10 by a radial

arranged circular disc-shaped stop surface 43 at the edge of the receptacle 42 of the outer plates 3 limited. The stop surfaces 33,

43 together with the end-side abutment surfaces 13 also cause the pivoting angle limit for the relative pivoting of outer flap 3 and inner flap 4 to each other, since together with the corresponding threaded surfaces 11A and mating surfaces 41A a kind of wedging of the transverse pin 10, the pivotal movement of the two tabs 3, 4 relative to each other limited pivoting directions.

The cross bolt 10 can also serve as a chain pin for pivotal connection of the tabs 3, 4. In the arrangement shown, however, the cross bolt 10 is not primarily used as a chain pin and is with sufficient radial clearance for a smooth

Transverse displacement in the receptacles 31, 42 arranged.

For articulation, the inner plates 3 each have in both overlapping areas 34A, 34B coaxial with the pivot axis S a circular cylindrical bearing projection 35. The bearing projection 35 surrounds the crosspiece 10 in mounting arrangement and forms an axially projecting circular disc-shaped bearing pin, outside order each receptacle 31. The outer flap 4 has in each case in both

Overlap areas 44A, 44B coaxial with the pivot axis S a matching circular cylindrical bearing recess 45, in which engages the corresponding bearing projection 35 for the purpose of pivotal mounting. The storage recess 45 coaxially surrounds the receptacle 42 as a recessed gradation in the inner flap 4.

For fastening the side flaps 3, 4 to each other, as best seen in FIG. 2B, a separate holding part 50 is respectively centrally located on the inner flaps 4 and on the outer flaps 3

attached. The holding part has frontal, circular arc running around the pivot axis guide grooves 52, in which a circular arc continuous guide projection 54A, 54B of the adjacent side tab 3,4 in the assembled state engages and forms a kind of rear handle, so that the side flap 3, 4 transverse to the longitudinal direction L firmly secured to each other.

The cross bolt 10 is designed here for weight saving as a hollow bolt and here has an inner diameter D on which is about 40-45% of the tab height. Accordingly, the im

Substantially cylindrical transverse pin 10 has a large outer surface for the molded thread projections 11 and locking pin 12, and the helical gear 11, 41 receives favorable forces or moments ratios.

In the example shown, the inner plates 4 are threaded and the outer plates 3 hold the cross bolt rotation. A reverse arrangement is possible. The invention is not on screw drives and not only on energy chains with

alternating inner and outer flaps, e.g. from patent EP 0 803 032 Bl. The proposed

Combination of crosspiece or cross pin with a suitable conversion gear, e.g. a wedge drive, the relative

Pivoting both side flaps in a translatory

Displacement of the crosspiece converts to extend and extend the crosspiece can also in side plates with a cranked design, as proposed in EP 0 819 226 Bl, are used.

LIST OF REFERENCE NUMBERS

1 energy chain

 2 chain links

 3 outer straps

 4 inner straps

 5 crossbars

 6 guide rails

 7 guide groove

 8A, 8B straps

 10 cross bolts

 11 thread protrusions

11A thread surfaces

 12 locking pins

 13 stop surface

 14 guide surface

 31 cylindrical shots

 32 guide grooves

 33 stop surface

 34A, 34B overlap areas

35 bearing projection

 41 thread groove

 41A mating surface

 42 recording

 43 stop surface

 44A, 44B overlap areas

45 storage recess

50 holding part 52 guide groove

 54A, 54B guide projection L longitudinal direction

 A symmetry axis

S pivot axis

Claims

claims 1. Energy guiding chain (1) for guiding lines, such as  Cables, hoses or the like, between two  Connection points of which at least one is mobile, wherein the energy guiding chain chain links (2), each with two opposite side flaps (3; 4) comprises; and the side flaps (3; 4) are pivotally connected to each other pivotally about a pivot axis (S) transversely to the longitudinal direction (L) of the energy guiding chain (1) and two  Laschen strands (8A, 8B) form, between which an interior space is provided for the lines; wherein on at least some chain links (2) at least one transverse web (5) the  Connecting lashing strands with each other;  characterized in that  two mutually hingedly connected side flaps (3, 4) have a transversely to the longitudinal direction of the energy guiding chain slidably mounted crosspiece (10) and with this one  Implementation gear (11, 41) form, which a relative pivoting of the two side plates (3; 4) in one  translational displacement of the crosspiece (10) converts, in particular to laterally extend the crosspiece (10) during pivoting in one direction about the pivot axis (S) and retract laterally when pivoting in the other direction about the pivot axis (S). 2. Energy guiding chain according to claim 1, characterized in that the crosspiece (10) is a separate component and / or substantially parallel to the pivot axis (S) displaceable is stored. 3. Energy guiding chain according to claim 1 or 2, characterized  characterized in that at least one, preferably both side flaps (3; 4) each have a receptacle (31; 42) for the crosspiece (10), wherein the crosspiece (10) therein preferably coaxially to the pivot axis (A, S) slidably disposed and guided. 4. Energy guiding chain according to claim 1, 2 or 3, characterized  characterized in that the conversion gear as  Rotation / translation conversion gear, in particular as a helical gear (11, 41) is executed. 5. Energy guiding chain according to claim 3 and 4, characterized  in  the cross piece (10) outside at least two threaded projections (11) and the receptacle has one (4) of the two side flaps inside at least two thread grooves (41), wherein the  Thread projections (11) in the thread grooves (41) engage to implement a relative rotation of the side plates in the translational displacement of the crosspiece. 6. Energy guiding chain according to claim 5, characterized in that the crosspiece (10) on the outside has two locking pins (12) and the receptacle (31) of the other (3) of the two side flaps on the inside two to the pivot axis axial guide grooves (32), wherein the locking pin (12) are guided axially displaceably in the guide grooves (32) and the crosspiece  slidably but non-rotatably hold on the second side flap. 7. Energy guiding chain according to one of the preceding claims, in particular according to claim 6, characterized in that the one side flap (4) has a radially arranged first  Stop surface (43) for the crosspiece (10) and the other side flap (3) has a radially disposed second  Stop surface (33) for the crosspiece (10), so that the first and second stop surface (33; 43) each limit the translational displacement of the cross piece. Energy guiding chain according to claim 7, characterized in that the stop faces (33; 43) engage with the cross piece  Cooperation and the pivoting angle of the side flaps (3; 4) in both directions. 9. Energy guiding chain according to one of the preceding claims, in particular according to claim 4, wherein the tab strands alternately arranged first and second  Side flaps, namely inner flaps (4) and outer flaps (3), the inner flaps (4) having overlapping areas (44A, 44B) and the outer flaps (3) having outer overlapping areas (34A, 34B), the overlapping areas being articulated are connected, characterized in that  the inner plates (4) and outer plates (3) are cylindrical  Have receptacles (42, 31) for the crosspiece (10), wherein preferably the inner flap (4) in the receptacle (42) Threaded grooves (41) cooperating with threaded projections (11) on the crosspiece (10) _Z ; and preferably the  External tab (3) in the receptacle (31) has axial guide grooves (32) with locking pins (12) on the crosspiece (10)  Interaction. 10. Energy guiding chain according to claim 9, characterized in that in each case one of the inner flap (3) and outer flap in each case in both overlapping areas (34A, 34B) coaxial with  Swivel axis surrounding the crosspiece (10)  rotationally symmetrical, in particular cylindrical  Bearing projection (35) and the other of the inner flap and outer flap (4) in both  Overlapping areas (44A, 44B) coaxial to the pivot axis surrounding the crosspiece (10) a rotationally symmetric,  in particular cylindrical bearing recess (45) into which engages the corresponding bearing projection (35) for the purpose of pivotal mounting. 11. Energy guiding chain according to claim 9 or 10, characterized  in that the inner straps and / or outer straps (3; 4) each have a separate holding part (50) with end-side guide grooves (52) into which a Guide projection (54A, 54B) of each adjacent Side tab engages in the assembled state. 12. Energy guiding chain according to one of the preceding claims, characterized in that the displaceable crosspiece is designed as a transverse bolt (10), in particular as a hollow bolt, preferably with an inner diameter (D) which is at least one third of the tab height. 13 guide assembly with a power transmission chain  the energy guiding chain forms a first strand and a second strand which are connected to one another by a deflection arc; full :  two opposite guide rails (6) for at least one of the strands with which this strand on a  is given predetermined travel distance; characterized by an energy guiding chain (1) according to one of claims 1 to 12, wherein the displaceable cross pieces (10) in the  extended position in the guide rails (6) engage and guided in this (7). 14. Guide arrangement according to claim 13, characterized in that the guide rails (6) guide grooves (7), in which the displaceable cross pieces (10) engage, wherein the guide rails (6) are arranged in particular vertically and / or define a curved path. 15. Guide arrangement according to claim 13 or 14, characterized  characterized in that the displaceable cross pieces (10) are slidably guided in the guide rails (6). 16 side flap, in particular for a power transmission chain according to one of claims 1 to 12, characterized  in that the side flap (4) has a transverse piece (10) displaceably mounted transverse to the main plane of the tongue, and  in that the side flap (4) and the crosspiece (10) are designed to form a conversion gear (11, 41), which swiveling movement of the side flap (4) into translatory  Displacement of the crosspiece (10) converts.