Abstract:
A modular energy conducting guide chain, which is composed of a plurality of serially arranged and interconnected guide elements. A terminal mounting element is joined at one or both ends of the interconnected guide elements, and a hollow guide section is connected to the terminal mounting element. The guide elements each comprise a generally tubular body which is composed of first and second guide sections which have the configuration of a segment of a sphere, and an intermediate joint section which may be flexible. To couple the adjacent guide elements in the chain, the first spherical guide section of one of the adjacent guide elements is positioned to overlie the second spherical guide section of the other of the adjacent guide elements, so as to permit relative rotation therebetween.

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to a guide element for an energy conducting guide chain, as well as a terminal mounting element for attaching the chain formed by the guide elements to a junction point, and a modular system which includes the chain. 
     Modern operating machines are often connected to a plurality of electric, hydraulic, and/or pneumatic incoming and outgoing lines, for controlling movable consumers, whether they perform static and/or dynamic operations. To run such lines, in particular from a stationary junction point to a movable consumer, it is common to use so-called line guide elements which are interconnected to form an energy conducting guide chain. 
     Likewise, modern work places, in particular open-plan offices of industry, administration, and commerce, require, for example, energy and telecommunication connections in the direct vicinity of each work place, in particular grounded outlets for electronic devices, for telephone, and for computers, light switches, automatic circuit breakers, overvoltage protectors, and many more. 
     In the case of office furniture, such as desks and computer tables, or in the case of special furniture for sound and movie studios, it is known to use conduits for purposes of running and laying in a defined manner current-carrying and/or other supply cables (also referred to herein as lines) to electrical or electronic devices placed or mounted on the furniture, so that the cables are not exposed. Such conduits are used both for protecting the cables and for protecting the operator of the devices. Moreover, such cable conduits prevent a device from being pulled down from the furniture in the case of tripping over or getting caught on the cable. 
     Based on the foregoing, it is an object of the present invention to provide line guide elements, a guide chain formed of the elements, a terminal mounting element for the guide chain, as well as a modular system for forming a line guide structure for running at least one line. The components are easy to handle, small in number, and able to fulfil a number of energy supply situations, in particular electrification situations. In addition, it is intended to make it possible to insert the at least one cable into the guide elements even after assembly of the components, and without tools. Moreover, it is intended to cover different cases of use with static and/or dynamic loads. Furthermore, it is intended to be able to integrate possibly previously existing components, such as, for example, hollow guide sections with a substantially circular or rectangular cross section, as well as trays for depositing multipoint connectors, or the like. 
     SUMMARY OF THE INVENTION 
     The above and other objects and advantages of the invention are achieved by the provision of a guide element for an energy conducting guide chain which comprises a generally tubular body which defines a longitudinally extending central guide area which is adapted to receive at least one energy conducting line. The guide element includes first and second longitudinally aligned guide sections which are joined by an intermediate joint section. Preferably, the first and second guide sections have the configuration of a segment of a sphere. 
     To form a guide chain, several of the guide elements are serially arranged, and the adjacent guide elements are coupled together by a coupling wherein the first guide section of one of the adjacent guide elements is coupled to the second guide section of the other of the adjacent guide elements. Such coupling is achieved by having the spherical first guide section overlie the spherical second guide section, and so as to permit relative rotation about the longitudinal axis. 
     The formation of a joint section between the two guide sections permits a high constructional degree of freedom. Moreover, wear of the joints is minimized insofar as it is possible to use the guide element of the invention in an advantageous manner, for guiding a cable even in manufacturing processes under clean room conditions or for electrification of, for example, therein needed work or inspection stations. 
     It is preferred to fabricate each guide element from two halves, i.e., first and second longitudinal halves, each having preferably the shape of a half shell, thereby facilitating in an advantageous manner its manufacture and assembly. The two longitudinal halves each define a pair of longitudinal edges, and the edges along one or both sides may be brought together and joined to form joining regions. 
     Where the two longitudinal halves have two joining regions, the two halves form a tubular guide element after being assembled, which fully encloses the central guide area. In this instance, the lines may be inserted initially during the assembly of the guide elements to form a guide chain through the front end openings of the guide elements. 
     As an alternative, the two longitudinal halves may have only one joining region along one side, so that after being joined, they form a generally tubular guide element, which substantially encloses the guide area but includes a continuous slot extending in the longitudinal direction of the guide element, so that in an advantageous manner the slot permits the lines to be inserted into the guide area even after the assembly is completed. 
     In a particularly simple construction, the two longitudinal halves can be joined in their joining region or regions by a tongue and groove connection. 
     To reinforce the structure of a guide element having only one joining region, it is proposed to provide the longitudinal halves, adjacent their one joining region, with at least one connecting means that reinforces the structure of the guide element. Preferably, the connecting means take the form of a pin on one longitudinal half, and which engages a corresponding receptacle in the other longitudinal half. In the simplest case, the connecting means may be a screw. 
     It will be possible to manufacture the guide elements in a particularly economical manner, when both the guide sections and the intermediate joint section of the longitudinal halves are formed of a plastic. Preferably, the intermediate joint section is composed of a material differing from the plastic of the guide sections, in particular of a softer material, which advantageously assists in the flexibility of the joint sections. 
     An advantageous development provides that the guide sections are molded to the intermediate joint section by the bicomponent injection molding method. 
     To improve a material-to-material engagement between the guide and joint sections, it is proposed to provide cavities or grooves in the joint section for molding thereto the guide sections in material-to-material engagement. 
     To improve the flexibility of the joint section, it is proposed to make the joint section at least in part elastic. 
     To further increase the flexibility, it is preferred to make the joint section in the fashion of an accordion. An accordion-type joint section provides with simple means higher degrees of freedom with respect to the possibility of turning adjacent guide sections relative to one another. 
     A guide chain formed from such guide elements for running at least one line distinguishes itself in that the first and the second guide section of adjacent guide elements can be interconnected in formfitting and/or force-locking or frictional engagement. This permits forming in an advantageous manner guide chains of any desired length. 
     Preferably, for example by simply joining the first or the second guide section of adjacent guide elements, the one element engages the other. This has the advantage that a guide chain is constructed without additional connecting elements that are possibly subjected to wear. 
     To improve the force-locking engagement and/or the formfitting or frictional engagement, the guide sections are designed and constructed, preferably to correspond with one another, in particular in the shape of a segment of a sphere. 
     Preferred is a construction of a guide chain, whose elements can be turned or twisted relative to one another, thereby enabling in an advantageous manner even complex sequences of motion of, for example, 360°. 
     To limit the angle of twist or traverse, at least individual guide elements may comprise restraining means. In a simple development, it is proposed to design and construct the restraining means as a pin-shaped element, which represents a stop. An advantageous further development proposes to design and construct the restraining means by the tongue and groove principle, preferably in such a manner that of two guide sections, the one comprises a pin-shaped element, which forms not only a stop, but also engages a corresponding groove formed in the adjacent guide section, so that it is possible to predetermine in an advantageous manner maximal angles of twist or traverse. Another advantageous further development of the restraining means provides for arranging in the groove evenly spaced recesses, which cooperate, for example, with a thrust ball arranged on the restraining element, so that it is possible to predetermine in an advantageous manner a plurality of intermediate angles, for example, at defined distances of 10° or 15°. 
     The filling, i.e. the insertion of the at least one line in the guide chain occurs, if not during the assembly of the guide chain, then subsequently through the longitudinal slots in the guide elements. Thereafter, the guide chain can be closed simply by twisting the elements. In like manner, it is easy to remove the line. 
     The terminal mounting element of the present invention, which defines a guide area and is used to mount a guide chain formed from the guide elements to a junction point, includes a coupling section, which can be connected to a first or a second guide section of the guide element in formfitting and/or force-locking or frictional engagement. 
     The line exits from the junction point. Known junction points are normally located on ceilings, walls, or floors. However, even machines or a hollow guide section may comprise junction points, to which the terminal mounting element can be attached in an advantageous manner. Thus, the terminal mounting element enables in an advantageous manner an attachment of the guide chain, for example, to the floor, below a table top, or even to any other preferably flat surface. 
     Preferably, for example, by simply joining the coupling section of the terminal mounting element and the first or the second guide section, the one engages the other. This has the advantage that likewise the connection of a terminal mounting element to a guide chain occurs without additional connecting elements that are possibly subjected to wear. 
     Therefore, the coupling section is designed and constructed, preferably to correspond with the first or second guide section, in particular likewise in the shape of a spherical segment, thereby improving in a particularly advantageous manner the force-locking engagement and/or formfitting or frictional engagement. 
     Preferred is the construction of a terminal mounting element, which permits turning or twisting the guide sections of the guide chain relative to the coupling section, thereby enabling even complex sequences of motion at, for example, 360° in an advantageous manner over the entire length of the guide chain. To limit the angle of twist or traverse, the coupling section and/or the guide sections may comprise the previously described restraining means. 
     Preferably, the coupling section comprises at least one slot extending in the longitudinal direction of the terminal mounting element. This slot facilitates the interlocking assembly of the coupling section with a first or a second guide section. In like manner as their own assembly to a guide chain, guide sections with a longitudinal slot can thus engage the coupling section in a possibly simple manner via the at least one slot. 
     For positioning the terminal mounting element on or over a junction point, the end of the element opposite to the coupling section includes a preferably flat or flangelike, substantially radially outward directed collar. 
     For a damage-free positioning of a terminal mounting element over a junction point extending in a substantially horizontal surface, it is proposed that the terminal mounting element contains a material of a high specific density, preferably lead or lead glance, bronze, gray iron, or the like, thereby ensuring in an advantageous manner a lasting positioning of the terminal mounting element, in particular over a floor junction point. The damage-free positioning of a weighted terminal mounting element has the advantage that the region surrounding a junction point is not damaged, for example, by a screw connection, but continues to remain sightly, for example, after relocating a work place that is to be supplied via a different junction point. 
     Alternatively and/or cumulatively, in particular in hazardous stumbling regions, it is preferred to form on the circumference of the collar openings, which are, for example, equally spaced from one another, in particular at a same phase angle, and enable an attachment of the terminal mounting element, for example, by means of screws or, in cooperation with detents adjacent the junction point, to an even vertically arranged junction point with a preferably flat surface. 
     It is preferred to design and construct a mounting element with a rectangular collar. Such a collar facilitates in particular an attachment to junction points, which comprise special clamping and/or holding means, for example, clamping lips. For junction points with a substantially circular cross section, it is preferred to use mounting elements with a circular collar. 
     The modular system of the present invention for constructing a line guide arrangement for running at least one line comprises guide chains formed by guide elements, terminal mounting elements, and/or hollow guide sections with a substantially circular or rectangular cross section. 
     The modular system of the present invention has the advantage that it covers, both in the horizontal and in the vertical direction, inexpensively, with only few components, a plurality of supply situations by means of lines, for example, electrification projects. It can be produced in any mass color. Everything is possible, from modern variants to the combination of differently colored modules. In particular, the plurality of combination possibilities of the individual line guide elements, which may be individually composed for any situation, offers a suitable solution to almost any application. The modular system of the present invention is able to solve even different cases of application with static and/or dynamic load, wherein even complex sequences of motion are possible, for example, with turns of 360°. Naturally, almost any desired combination of rigid and flexible line guide elements is possible. Even possibly existing components, such as, for example, hollow sections or trays for depositing multipoint connectors, or the like, may be integrated into the modular system. Finally, the modular system is adaptable by different cross sections to quantities and thicknesses of the cables being laid. 
     Preferably, the modular system includes means for relieving the pull of the at least one cable. The pull of cables can be relieved either via a comb-like element with cable binding means, for example, in the adapter, or via an insert for the connecting elements. 
     Preferably, the modular system comprises a hollow guide section with a substantially rectangular cross section, which includes means for securing a terminal mounting element, preferably clamping lips. 
     Alternatively and/or cumulatively, the modular system may comprise at least one adapter, in particular with at least one substantially flat surface for attaching a terminal mounting element to a hollow guide section with a substantially circular cross section. 
     In particular the adapter, but also the terminal mounting element in the case of hollow guide profiles with a substantially rectangular cross section, are used as a connecting link between a vertical and a horizontal cable run. Their assembly occurs by simply hanging or, in the case of a rectangular hollow guide section with the advantageous clamping lips, by simply sliding the elements into the section. Their construction permits positioning them in an infinitely variable manner in the horizontal direction. Likewise, it is simple to arrange the guide chain on the adapter or the terminal mounting element, for example, by joining the flange connections. A rigid connection results, after interlocking and/or engagement in the case of detents. 
     As a result of the unit construction of such a modular system, it is possible to change parts as desired and to expand the system as such, along with increasing needs, at any time. Its handling is just as simple as its construction. To insert the cables in use, no tool will be needed and only a short time. Unique in a system of this kind is also the fact that it is possible to run the cables separated from one another in a closed system. 
     In like manner, the invention is suitable for use in furniture, for example, in offices or sound studios, as well as in static and/or dynamic machines or industrial plants, in particular in clean rooms, and it distinguishes itself by its flexibility as well as its compatibility even with existing systems. 
     In the following, the invention is described with reference to an embodiment for the office furniture industry, without however limiting the use of the invention thereto. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a front view of a guide element which embodies the present invention; 
     FIG. 2 is a view of two longitudinal halves of a guide element according to FIG. 1; 
     FIG. 3 is a sectional bottom view of the longitudinal halves of FIG. 2 along a line I—I with two joining regions; 
     FIG. 4 is a sectional top view of the longitudinal halves of FIG. 2 along a line II—II of an embodiment having two joining regions; 
     FIG. 5 is a sectional bottom view of the longitudinal halves of FIG. 2 along a line I—I of an embodiment having only one joining region; 
     FIG. 6 is a sectional top view of the longitudinal halves of FIG. 2 along a line II—II of an embodiment having only one joining region; 
     FIG. 7 is a sectional front view of a guide element assembled from two longitudinal halves with each having only one joining region and with additionally reinforcing connecting means; 
     FIG. 8 is a sectional bottom view of the longitudinal halves of FIG. 7 along a line III—III with only one joining region and reinforcing means; 
     FIG. 9 is a sectional top view of the longitudinal halves of FIG. 7 along a line IV—IV with only one joining region and reinforcing means; 
     FIG. 10 is an enlarged view of a cutout V of FIG. 7 showing a connection of the guide sections to the joint section; 
     FIG. 11 is a sectional front view of a segment of a guide chain formed from the guide elements according to one of FIGS. 1-9; 
     FIG. 12 is an enlarged view of a cutout VI of FIG. 11 showing the segment of a guide chain with restraining means for limiting an angle of traverse or twist; 
     FIG. 13 is a perspective view of a segment of a guide chain formed from guide elements according to FIG. 11; 
     FIG. 14 is a partially sectioned front view of a first embodiment of a terminal mounting element; 
     FIG. 15 is a bottom view of the terminal mounting element of FIG. 14; 
     FIG. 16 is a sectional front view of a second embodiment of a terminal mounting element; 
     FIG. 17 is a top view of the terminal mounting element of FIG. 16; 
     FIG. 18 is a perspective view of the terminal mounting element of FIGS. 14 and 15; 
     FIG. 19 is a perspective view of the terminal mounting element of FIGS. 16 and 17; 
     FIG. 20 illustrates a line guide chain formed from guide elements with one terminal mounting element of FIGS. 18 and 19 respectively arranged at each end; 
     FIG. 21 illustrates a modular system for constructing a line guide chain arrangement; 
     FIG. 22 is an enlarged perspective view of a junction point of a guide chain to a rectangular hollow guide section by means of a terminal mounting element according to FIG. 19; 
     FIG. 23 is a front view of the junction point of FIG. 22; 
     FIG. 24 is a sectional front view of the rectangular hollow guide section according to FIGS. 22 and 23; 
     FIG. 25 is a sectional front view of a preferred cover for a hollow guide section according to FIG. 24; 
     FIG. 26 illustrates the hollow guide section of FIG. 24 with the cover of FIG. 25; 
     FIG. 27 is a front view of the junction point of FIG. 22 with an alternative hollow guide section; 
     FIG. 28 is a front view of a dividing element for insertion into a hollow guide section; 
     FIG. 29 is a front view of a hollow guide section for use with the dividing element of FIG. 28; 
     FIG. 30 illustrates the hollow guide section of FIG. 29 assembled to dividing element of FIG. 28; 
     FIG. 31 is a front view of an alternative hollow guide section with a circular cross section; 
     FIG. 32 is a front view of a preferred cover for a hollow guide section of FIG. 31; 
     FIG. 33 illustrates the hollow guide section of FIG. 31 assembled to the cover of FIG. 32; 
     FIG. 34 is a sectioned side view of an adapter for attaching a terminal mounting element to a hollow guide section of FIG. 31; 
     FIG. 35 is a front view of the adapter of FIG. 34; 
     FIG. 36 is a bottom view of the adapter of FIGS. 34 and 35; and 
     FIG. 37 illustrates a junction point of a guide chain to a hollow guide section with a circular cross section via the adapter of FIG.  34  and the terminal mounting element of FIG.  19 . 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring more particularly to the drawings, FIG. 1 is a front view of a guide element  1 , which defines a longitudinally (i.e., axially) extending central guide area  2 . The guide element  1  comprises respectively a first guide section  3  and a second guide section  4  which are longitudinally aligned, as well as a joint section  5  formed therebetween. 
     FIG. 2 shows a first longitudinal half  6  and a second longitudinal half  7 , which result, when joined, in the guide element  1  of FIG.  1 . 
     FIGS. 3 and 4 are respectively a sectional bottom view and a sectional top view of the longitudinal halves  6  and  7  of FIG. 2 respectively along a line I—I and a line II—II. Each of the two longitudinal halves  6  and  7  define a pair of longitudinal edges, and the respective pairs of edges are brought together to form joining regions  8  and  9 , so that after their assembly they form a unitary guide element which fully encloses the guide area  2 . The assembly of the two longitudinal halves  6  and  7  in their joining regions  8  and  9  occurs by the tongue and groove connection. To this end, as shown in FIG. 3 and 4 respectively, a tongue  12  and a groove  13  are formed in each of the two joining regions  8  and  9 . 
     In an alternative embodiment of the longitudinal halves  6  and  7 , FIGS. 5 and 6 show a bottom view and a top view respectively of the longitudinal halves of FIG. 2 along a line I—I and a line II—II respectively. The two longitudinal halves  6  and  7  have each only one joining region  10 , so that after their assembly, they form a guide element which has a continuous slot  11  extending in the longitudinal direction of the guide element and which communicates with the guide area  2 . With that, it is possible to insert at least one cable into the guide area  2 . Preferably, the joining of the two longitudinal halves  6  and  7  in their one joining region  10  occurs preferably again by the tongue and groove principle. To this end, as shown in FIGS. 5 and 6 respectively, a tongue  12  and a groove  13  are formed in the respective joining region  10 . 
     FIG. 7 is a sectional front view of a guide element  1 , which is assembled from two longitudinal halves, each having only one joining region  10 . Adjacent the joining region  10  of the two longitudinal halves, in which a tongue  12  is formed, the guide element  1  comprises three connecting means  14 ,  15 ,  16 , which reinforce the structure of the guide element  1 . One of the connecting means  14  is arranged within the first guide section  3 , and two additional connecting means  15 ,  16  are arranged within the second guide section  4 . 
     FIGS. 8 and 9 are a sectional bottom and a top view respectively of the longitudinal halves  6  and  7  of FIG. 7 along a line III—III and a line IV—IV. The two longitudinal halves  6  and  7  comprise each a joining region  10 , which includes a tongue  12  and a groove  13 , respectively for joining the longitudinal halves  6 ,  7 . Alternatively and/or cumulatively thereto, adjacent the joining region  10 , the connecting means  14  and  16  on the first longitudinal half  6  are designed and constructed in the shape of pins  14   a ,  16   a , and engage each in a corresponding receptacle  14   b ,  16   b  formed in the second longitudinal half  7 . A connecting means  15 , which is not visible because of the position of the section III—III, is designed and constructed either in the same manner as the connecting means  14  and  16 , or exactly opposite for increasing the reinforcing effect, namely in the shape of a pin  15   a  on the second longitudinal half  7 , which engages a corresponding receptacle  15   b  formed in the first longitudinal half  6 , as is indicated in phantom lines in FIG.  8 . 
     FIG. 10 is an enlarged view of a cutout V showing a connection of the guide sections  3  and  4  with the joint section  5  according to FIG.  7 . Both the guide sections  3  and  4  and the joint section  5  of the longitudinal halves  6  and  7  may be formed of a plastic. Preferably, however, the joint section  5  is composed of a different material from the plastic of guide sections  3  and  4 , in particular a softer material, so that the joint section  5  is at least in part elastic. If so, it is preferred to mold the guide sections  3  and  4  to the joint section  5  by the bicomponent injection molding method. FIG. 10 illustrates in particular that the preferably accordion-type joint section  5  includes cavities  17 , in particular grooves or bores for receiving therein the guide sections  3  and  4  in material-to-material engagement. 
     FIG. 11 is a sectional front view of a segment of guide chain  20  formed from guide elements  1  of one of FIGS. 1-9. In this chain, the first  3  and second  4  guide sections of adjacent guide elements  1  are joined to each other in formfitting and/or force-locking or frictional engagement. In particular, the first guide section  3  engages the second guide section  4  of adjacent guide elements  1 . As can further be noted, the guide sections  3 ,  4  are designed and constructed preferably corresponding, in particular in the shape of spherical segments, as well as for turning or twisting relative to one another. 
     FIG. 12 is an enlarged view of a cutout VI showing the segment of a guide chain shown in FIG.  11 . Restraining means  21 ,  22  for defining the angle of traverse or twist are preferably designed and constructed according to the tongue and groove principle, preferably in such a manner that of two adjacent guide sections  3  and  4 , the first section  3  comprises a restraining element  21  in the shape of a pin, which engages a corresponding groove  22  provided in the adjacent second guide section  4 . 
     FIG. 13 is a perspective view of the segment of the guide chain  20  formed from guide elements  1  according to FIG.  11 . Clearly visible is the continuous slot  11  that extends in the longitudinal direction of guide elements  1 . This slot permits inserting at least one cable  80  even subsequently, i.e., after the assembly of such a guide chain  20 . If one wants to avoid that an inserted cable  80  drops out, same can easily be accomplished, in that one closes the guide chain  20  by simply twisting its guide elements  1 . 
     FIG. 14 is a partially sectioned front view of a first embodiment of a terminal mounting element  30 . In like manner as the previously described guide elements, the terminal mounting element  30  defines a central guide area  2 , and it is used to attach a guide chain formed from guide elements to a junction point, in particular to a floor or wall. The terminal mounting element  30  comprises a coupling section  31  in the shape of a spherical segment, which can be connected to a corresponding second guide section of a guide member in formfitting and/or force locking or frictional engagement. In this instance, the coupling section  31  is surrounded by an adjacent second guide section of a guide element. For this reason, it is preferred to design and construct the coupling section  31  of the terminal mounting element  30  essentially in the same way as a first guide section of a guide element. Opposite to the coupling section  31 , the terminal mounting element  30  comprises a substantially radially outward directed collar  32 . 
     FIG. 15 is a bottom view of the terminal mounting element  30  of FIG.  14 . As shown, the collar  32  of the terminal mounting element  30  is made circular. The circumference of the collar  32  includes four openings  33 , which are preferably equally spaced from one another, in particular at an angle of 90°. The coupling section  31  comprises at least one slot  11  extending in the longitudinal direction of the terminal mounting element  30 . In addition to facilitating a connection of the terminal mounting element  30  to a guide section of a guide element, the slot  11  is used to insert the at least one cable at a later time. 
     FIG. 16 is a front view of a second embodiment of a terminal mounting element  40 . The terminal mounting element  40  likewise defines a central guide area  2 , and it is used to attach to a junction point a guide chain that is formed from guide elements. The terminal mounting element  40  comprises a coupling section  41  having the shape of a spherical segment, which can be joined with a corresponding first guide section of a guide element in formfitting and/or force-locking or frictional engagement. Opposite to the coupling section  41 , the terminal mounting element  40  comprises a substantially radially outward directed collar  42 . 
     FIG. 17 is a top view of the terminal mounting element  40  according to FIG.  16 . In this embodiment, the collar  42  of the terminal mounting element  40  is made rectangular. The circumference of the collar  42  includes four openings  43 , which are preferably equally spaced from one another, in particular at an angle of 90°. The coupling section  41  comprises two intersecting reinforcement structures  34 , as well as two slots  11  extending in the longitudinal direction of the terminal mounting element  40 , which are used to insert the at least one cable at a later time. 
     FIG. 18 is a perspective view of the terminal mounting element  30  of FIGS. 14 and 15. The guide area  2  is surrounded by reinforcing structures  34 , which form a plurality of interspaces or cavities  35  in the terminal mounting element  30 . These structures reinforce in an advantageous manner the terminal mounting element  30 , which is made of plastic, and intended in particular for a floor-mounted junction point. For a lasting positioning of the terminal mounting element  30  over a floor-mounted junction point only by means of gravity, it is possible to arrange in the interspaces or cavities  35  advantageously materials of a high specific density, for example, lead, lead glance, gray iron, or the like. Normally, such a weighted terminal mounting element  30  need not be additionally bolted via the openings  33 , so that the surrounding of the junction point remains free of damage. 
     FIG. 19 is a perspective view of the terminal mounting element  40  of FIGS. 16 and 17. Besides slots  11 , the coupling section  41  comprises additional slots  44  for inserting the at least one cable. These slots facilitate joining the coupling section  41  to a first guide section in an advantageous manner. In particular during the assembly with a first guide section, it is possible to spread the coupling section  41  slightly and bring it subsequently into an external surrounding contact surrounding with the adjacent first guide section. 
     FIG. 20 illustrates a guide chain  20  constructed from guide elements  1  with a terminal mounting element  30 ,  40  arranged at each end. In like manner as the guide elements among themselves, the guide sections  3 ,  4  are also joined for twisting or turning relative to the coupling sections  31 ,  41 . 
     FIG. 21 illustrates a modular system  100  for constructing a line guide chain arrangement for running at least one cable  80 . The modular system comprises guide chains  20 , as shown in FIGS. 11-13, which are formed from guide elements  1 , as shown in FIGS. 1-10, terminal mounting elements  30 ,  40 , as shown in FIGS. 14-19, and hollow guide sections  60  with a preferably rectangular cross section. Alternatively and/or cumulatively, the modular system may also comprise hollow guide sections with a circular cross section. 
     The guide chain  20 , as previously illustrated in FIG.  20  and constructed from guide elements  1 , is attached with a terminal mounting element  30 , as shown in FIGS. 14,  15 , and  18 , to a junction point  90  arranged in a floor  91  by means of screws  92 . The junction point  90  includes means  81  for relieving a pull of the line  80 . The opposite end of the guide chain  20  is attached with a terminal mounting element  40  of FIGS. 16,  17 , and  19  to a junction point formed in the rectangular hollow guide section  60 . 
     FIG. 22 is an enlarged, perspective view of a junction point  90  of the guide chain  20  to a rectangular, hollow guide section  60  by means of a terminal mounting element  40 . The rectangular hollow guide section  60  comprises two depending outer side walls which extend parallel to each other, and which include two opposing, inwardly extending clamping lips  61  for attaching a terminal mounting element  40  with a rectangular collar  42 . By means of the clamping lips  61 , which are made continuous, it is possible to position the terminal mounting member  40  in an advantageous manner by simply sliding it along the length of the hollow guide section  60  to any desired position. 
     FIG. 23 is a front view of the junction point of FIG.  22 . As can be noted, the parallel extending clamping lips  61  are spaced from each other such that the rectangular collar  42  of the terminal mounting element  40  can be slid thereinto from the front end of the hollow guide section  60 . Alternatively and/or cumulatively, the clamping lips  61  may be flexible to the extent that it is also possible to clamp the collar  42  of the terminal mounting element  40  into the section  60 . 
     FIG. 24 is a front view of the rectangular hollow guide section  60 . The hollow guide section  60  comprises a back wall  58  and two depending outer side walls, and it defines at least two guide areas  62  extending in the direction of the hollow guide section  60 , so that it is also possible to run a plurality of cables separated from one another. The two guide areas  62  are formed in particular by a center ridge, which is preferably designed and constructed to include a receiving groove  64 . Each guide area  62  comprises a continuous slot  63  extending in the longitudinal direction of the hollow guide section  60 . Preferably, the slots  63  can be closed by a common cover. In the back wall  58  opposite to the slots  63 , the hollow guide section  60  includes openings  59  that extend preferably over its entire length. On the one hand, these openings reinforce the structure of the hollow profile  60 , and on the other hand, they can also be used for mounting the hollow guide section  60  at the front end. As an alternative to a front-end mount of the hollow guide section  60 , in which case it should be noted that the region of the clamping lips  61  remain free for receiving a terminal mounting element, the hollow guide section  60  may be mounted with the rear side of the back wall  58  opposite to the slots  63 , for example to a rear surface of a piece of furniture. To facilitate such a mount, the inside of the back wall  58  may include a marking  57 , which is, for example, a longitudinal crimp. 
     FIG. 25 shows a preferred cover  65  for a hollow guide section of FIG.  24 . The cover comprises a tongue  66 , which cooperates with the groove  64  formed in the hollow guide section such that the slots  63  are essentially covered. To be able to insert cables even into the covered hollow guide section, the cover may have an elastic edge  67 , which can be raised for inserting the cable. 
     FIG. 26 illustrates a hollow guide section  60  of FIG. 24 with a cover  65  of FIG.  25 . In an advantageous manner, such a hollow guide section with a single cover is simple to make. Suitable materials are both plastic and extrudable metals. Moreover, cables can easily be inserted into the defined guide areas without tools. 
     FIG. 27 is a front view of the junction point of FIG. 22 with an alternative hollow guide profile  60 . The parallel extending clamping lips  61  are again designed and constructed in the same manner, as has already been described with reference to FIG.  23 . Instead of two guide areas  62 , the hollow guide section  60  now comprises three guide areas  62 , which are essentially formed by a dividing element  67 . 
     FIG. 28 shows at least one dividing element  67  that can be inserted into a hollow guide element  60 . As an alternative to the guide areas  62  formed in the hollow guide section  60  of FIG. 24, this dividing element is used to form several guide areas  62 . According to the embodiment of FIG. 28, the dividing element  67  is made substantially in U-shape. Formed in the corners of the U-shape are detents  68  for a connection to the hollow guide section. At the ends of its arms, the dividing element  67  mounts covers  69 , which prevent the cables from dropping out, and which are again made preferably elastic, so as to be able to insert a cable at a later time. 
     FIG. 29 shows a hollow guide section  60  suitable for use with a dividing element. The hollow guide section  60  accommodates locking elements  56  that correspond with the detents formed on the dividing element. 
     FIG. 30 illustrates a hollow guide section  60  of FIG. 29 with a dividing element  67  of FIG. 28, whereby three guide areas  62  are formed for running cables  80  separated from one another. A separate dividing element  67  facilitates in particular the manufacture of the hollow guide section  60 , which can again be made from a plastic or an extrudable metal. In addition, the separate manufacture of section  60  and dividing elements  67  has the advantage that while using the same hollow guide section  60 , it is possible to form thus individualized guide sections  62  that are adaptable to changing tasks by inserting differently shaped dividing elements. 
     As previously described, the hollow guide section may be joined, as desired by the user, for example, to office furniture, via a screw connection to the frame. Alternatively, the hollow guide section may also be joined via a separate fitting, which preferably permits turning the hollow guide section. 
     In the latter instance, wherein the hollow guide section is attached for turning to the office furniture, the guide section need not even be removed for inserting a dividing element or a cable. Furthermore, such a mount has the advantage that by turning the section, the user can position the cables, as desired. 
     To close the hollow guide section with the cover, it has already been proposed above that of a cover and hollow guide section, the one comprises detents, and the other grooves cooperating with the detents. Alternatively or cumulatively, it is possible that of a cover and hollow guide section, the one also comprises at least one tongue and the other at least one groove cooperating with the tongue. 
     FIG. 31 illustrates an alternative hollow guide section  50  with a substantially circular cross section, which contains two guide areas  62 . A groove  64  serves as a connection to a cover. 
     FIG. 32 illustrates a preferred cover  51  for a hollow guide section  50  according to FIG.  31 . The cover comprises a tongue  66 , which cooperates with the groove of the circular hollow section for purposes of closing. 
     FIG. 33 illustrates the hollow guide section  50  of FIG. 31 assembled with a cover  51  of FIG.  32 . As regards the material properties as well as for further advantageous embodiments, reference may be made to the description of the rectangular hollow guide sections and their covers. In particular, it should be mentioned that the circular hollow guide section may also comprise corresponding, separate dividing elements for defining further guide areas. 
     FIG. 34 is a sectional side view of an adapter  70  for attaching a terminal mounting element to a circular hollow guide section. The adapter  70  associated to the modular system comprises at least one substantially flat surface  71  for attaching a terminal mounting element, in particular a terminal mounting element of FIGS. 14 et seq. and  16  et seq. to the circular hollow guide section. Otherwise, it is constructed to correspond largely with the circular cross section of the hollow guide section. 
     FIG. 35 is a front view of the adapter of FIG.  34 . Detents  72  arranged on the flat surface  71  facilitate the connection to a terminal mounting element, which comprises corresponding locking elements. 
     FIG. 36 is a bottom view of the adapter of FIGS. 34 and 35. Preferably, the detents  72  are evenly spaced from one another, in particular at an identical phase angle. 
     Finally, FIG. 37 is a side view of a junction point of a guide chain  20  to a circular hollow guide section  50  via the adapter  70  and a terminal mounting element  40  constructed according to FIG.  19 . In the place of a rectangular collar, the terminal mounting element  40  comprises a collar  45 , in particular a circular collar corresponding with the flat surface  71  and the detents  72  arranged thereon.