table leg

Abstract

A table leg (1) or table frame comprising: a continuous cable guide (10, 100) with a cable chain (70) for guiding cables along the table leg (1) or table frame, which is formed by a plurality of interconnected chain links; wherein the cable chain (70) has a first section (A) and a second section (B); and wherein the table leg (1) or table frame is height-adjustable; and characterized in that the cable chain (70) can be deformed along the second section (B) by at least one more degree of freedom or by one rotational degree of freedom in a direction of rotation than along the first section (A); and that the cable chain (70) is provided such that it sags along the second section (B) when the table leg (1) or table frame is in the lowered state, providing sufficient length for extending the table leg (1) or table frame.

Description

The present invention relates to table legs or table frames with cable guides. In particular, the invention relates to table legs or table frames with cable chains that have different sections with a different number of degrees of freedom. Cable chains according to the present invention, which can also be referred to as cable or energy chains, are systems for guiding power and / or data cables, formed by several chain links connected by joints. Adjacent chain links are therefore spatially deflectable relative to one another, usually in several degrees of freedom. Thus, depending on the design of the joint connection, adjacent chain links can be displaceable relative to one another to allow the cable chain to compress, rotate about the longitudinal axis of the cable chain, and / or rotate or pivot relative to one or more axes, which are usually perpendicular to the longitudinal axis of the cable chain. Typically, the chain links of the cable chain are each equipped with one or more connecting bodies for this purpose, which may have a plug socket or a connecting eyelet for connection to an adjacent link. The known chain links also have an outer part or sheath body. This forms a boundary that accommodates the cables routed along the cable chain. To accommodate the cables routed along the cable chain into the sheath body, the sheath body may have one or more openings through which the cables can be inserted into the sheath body. Such cable chains are known, for example, from DE 10 2006 030 086 A1 of the applicant. Further cable chains are disclosed in WO 2013 / 037072 A1 , US 2014 / 0096706 A1 , US 7,640,866 B1 , DE 10 2006 030 086 A1 and DE 10 2010 007 581 A1. However, the known cable chains exhibited consistent flexibility along their length. This can be undesirable in certain installation situations, for example, when installing them on table legs. The invention is therefore based on the objective of providing table legs or table frames with improved cable management. The invention is defined by independent claim 1. The dependent claims describe optional embodiments. The cable chain preferably has two, three, four, or more sections with different degrees of freedom, specifically sections in which adjacent chain links can be moved relative to each other by a different number of degrees of freedom. For example, adjacent links of the cable chain along a first section can be moved relative to each other by a first number of degrees of freedom, while adjacent links along a second section of the cable chain can preferably be moved relative to each other by a second number of degrees of freedom. A section can preferably have at least two, four, six, or ten immediately consecutive chain links.Cable chains or cable guides according to the invention can have any combination or all of the first, second, third and fourth sections described below, in particular the first and second section described, the first and third section described, the first and fourth section described, the second and fourth section described, the second and third section described, the third and fourth section described, the first, second and third section described, the first, second and fourth section described, the first, third and fourth section described, the second, third and fourth section described, or the first, second, third and fourth section described. The chain links can be designed such that they have at least one, exactly one, or at least two more degrees of freedom along the second section than along the first section. Furthermore, a third section can be provided along which the cable chain preferably has at least one, at least two, or three more degrees of freedom than along the second section. The cable chain can therefore have at least two more degrees of freedom along the third section than along the first section. In the context of the present invention, a degree of freedom is preferably understood to mean the range of motion of two immediately adjacent chain links, which can result in particular from the design of their connection. The available degrees of freedom can be largely determined by the design of the connecting elements of the chain links. However, further elements may be provided that restrict the mobility accordingly. According to the invention, one or more degrees of freedom can also be restricted only partially in sections. For example, along the first section, rotation may only be possible in one direction, whereas along the second section, rotation in both directions (i.e., clockwise and counterclockwise) is permitted. Furthermore, according to the invention, rotation in one direction may, for example, only be possible up to a certain maximum angle along the first section, whereas along the second section, rotation in this direction is permitted up to a larger maximum angle. As illustrated by way of example in Figs. 1A and 1B, the chain links 71A, 71B can each have a connecting body 73 in the form of a plug-type connector, which may have an end thickening 74. The connecting body 73 can be surrounded by an outer part or sheath body 75 into which the cables are received. Chain links can also have connecting bodies in the form of connecting eyelets. In this case, an eyelet can be provided on an arm that extends away from the sheath body 75. Alternatively, the eyelet can be formed on or in the sheath body. In this case, the chain links have pins that engage in the eyelets. Depending on the design of the connecting section 73 (in the illustrated example, in particular depending on the design of the connector, the end thickening 74, and the respective receptacle for this end thickening), the chain links can have different degrees of freedom. These include, in particular, pivotability about a first axis D1, which is perpendicular to the longitudinal direction L of the cable chain; pivotability about a second axis D2, which is perpendicular to the longitudinal direction L of the cable chain and to the first axis D1; ​​rotation about the longitudinal axis L; and displacement V in the longitudinal direction L, each of which can be defined as a degree of freedom. For example, the end thickenings 74 can be designed as a sphere or a cylinder. As an aid to defining the degrees of freedom, an imaginary Cartesian coordinate system can be projected onto the connection point of the respective chain links. This system is shifted along the longitudinal axis L of the cable chain and remains the same for each link, regardless of its orientation in space. The first coordinate axis X is then preferably congruent with the longitudinal axis L of the cable chain (or at least with the longitudinal axis of the respective chain link), while the second and third coordinate axes Y and Z, respectively, extend perpendicular to the longitudinal axis of the cable chain (see Fig. 1A). The rotation axis D1 then preferably corresponds to the Z-axis and the rotation axis D2 to the Y-axis. The directions of rotation can be positive or negative in the mathematical sense (the "right-hand rule"). Along the first section, the cable chain is preferably non-compressible, which can be achieved, for example, through the design of the chain links, in particular by the design of the connecting sections and the receptacles for these connecting sections along the chain links of the first section. These can be designed such that adjacent chain links cannot be pushed together. However, locking devices can also be used. For the purposes of this disclosure, locking devices are preferably understood to be elements formed separately from the cable chain, which can be provided between two adjacent links of the cable chain in order to selectively restrict the relative mobility of these links. Such locking devices are disclosed in particular in the parallel German patent application of the applicant in this case, dated the same day, entitled "Table Leg".Their revelation is hereby fully incorporated into the present revelation by reference. Alternatively or additionally, the cable chain along the first section can be designed in such a way that adjacent chain links can only be pivoted around a first axis of rotation and / or only in one direction (positive or negative) around this axis of rotation, or cannot be pivoted against each other at all. The chain links can also be rigidly connected to each other along the first section, for example by using a rigid connecting rod. Alternatively or additionally, the first section can have a rigid tunnel section. This tunnel section can have the same external shape, the same external dimensions, and / or the same external profile as the chain links of the first section. The second section preferably connects directly to the first section. Along this section, the cable chain can also be designed so that it is not compressible, which in this case can also be achieved by the design of the connection between the chain links and / or by the use of appropriate locking devices. In particular, the connecting sections and / or their receptacles can be designed so that adjacent chain links cannot be pushed together. Adjacent chain links can preferably be pivoted and / or rotated relative to each other about a first axis of rotation along the second section, wherein the first axis of rotation is preferably perpendicular to the longitudinal direction of the cable chain and / or to the longitudinal axis of the respective chain links. Preferably, pivoting about further axes perpendicular to the longitudinal axis of the cable chain and / or the respective chain links is not possible along the second section. Therefore, adjacent chain links can preferably only be pivoted relative to each other about the first axis of rotation along this section. The creation of such pivotability of the chain links can be achieved in particular by the design of the connecting sections and / or their receptacles along the second section, but also by the use of appropriate locking devices.The second section can therefore be designed in such a way that it is movable in a first plane, preferably only in this plane. Alternatively, the second section can be designed to twist and / or rotate around its longitudinal axis, for example, in a helical shape. Such twistability can be achieved, for instance, by using connectors with two plug-in contacts. Alternatively, connectors with eyelets or pins engaging in eyelets can be used. A helical arrangement is made possible if the connectors (e.g., the plug-in contacts or eyelets) bend slightly. With connectors that have only one plug-in contact, a similar result can be achieved by incorporating a certain amount of play in the joint. Alternatively or additionally, the cable chain can be designed so that adjacent chain links along the second section cannot be twisted around the longitudinal axis of the cable chain and / or around the longitudinal axes of the adjacent chain links relative to each other. This can also be achieved by appropriately designing the connecting sections and their receptacles and / or by using appropriate locking devices along the second section. The second section may therefore be designed to exhibit the freedom of movement and / or degrees of freedom of a tank or rail track and / or roll accordingly. The second section may have the same external shape, geometry, and / or dimensions as the first section. The third section can connect directly to the first. The cable chain can be designed along this section, for example, to allow for compression. This can be achieved in particular by appropriately designing the connecting sections and their receptacles, which can be designed so that adjacent chain links of the third section can be pushed together. Alternatively or additionally, the connecting sections along the third section can be designed such that adjacent chain links can be pivoted and / or rotated relative to each other about a first axis of rotation, which is preferably perpendicular to the longitudinal axis of the cable chain and / or perpendicular to the longitudinal axes of the respective chain links. Preferably, adjacent chain links along the third section are also pivotable and / or rotatable relative to each other about a second axis of rotation. This second axis of rotation is preferably also perpendicular to the longitudinal direction of the cable chain and / or to the longitudinal directions of the chain links. The second axis of rotation can also be provided perpendicular to the first axis of rotation of the second section. The third section can therefore be designed such that it is movable in a first plane and in a second plane. Alternatively or additionally, the cable chain along the third section can be designed such that adjacent chain links along this section can be rotated around the longitudinal axis of the cable chain and / or around the longitudinal axes of the respective chain links relative to each other (e.g., helically rotatable). The cable chain according to the invention can also have a fourth section. The fourth section can connect directly to the second section. Along the fourth section, the cable chain can be designed so that it is not compressible along this section, meaning that adjacent chain links are not displaceable relative to each other, particularly in the longitudinal direction of the cable chain. Alternatively, the section can be designed to allow compression. Both alternatives can be achieved, for example, by the design of the connecting sections of the chain links and / or by using appropriate locking devices. The cable chain can also be designed along the fourth section such that adjacent chain links are pivotable about a first axis of rotation that is perpendicular to the longitudinal axis of the cable chain and / or perpendicular to the longitudinal axis of the respective chain links. In this case, too, corresponding mobility along the section can be achieved by the design of the connecting sections of the chain links and / or the corresponding mountings. The fourth section can be designed such that the first axis of rotation of the chain links of the fourth section is perpendicular to the first axis of rotation of the chain links of the second section (to the axis of rotation of all or at least some links of the second section). Adjacent chain links of the fourth section can also be pivotable relative to each other about a second axis of rotation. This second axis of rotation is preferably also perpendicular to the longitudinal axis of the cable chain and / or to the longitudinal axes of the respective chain links. Furthermore, the second axis of rotation can be perpendicular to the first axis of rotation of the fourth section. Alternatively, the cable chain along the fourth section can be designed such that adjacent chain links can only be pivoted relative to each other about the first axis of rotation. The cable chain can further be designed along the fourth section such that adjacent chain links are rotatable relative to each other about the longitudinal axis of the cable chain and / or about the longitudinal axes of the respective chain links, so that, for example, a spiral connection of the fourth section (e.g., in the form of a helix) is possible. Alternatively, the fourth section can be designed such that the chain links are not rotatable about the longitudinal axis of the cable chain and / or not about the longitudinal axes of the respective chain links. Where, above or below, a pivoting, rotation, and / or twisting of adjacent chain links of the first, second, third, and / or fourth section about a first or second axis of rotation is mentioned, this refers in particular to a pivoting angle of at least 10°, at least 20°, at least 30°, at least 40°, or at least 50°. In the pivoted state, this angle is preferably formed between the longitudinal axes of the two adjacent chain links. The pivoted state is to be distinguished from a neutral state in that the cable chain is straight and the longitudinal axes of the adjacent chain links are congruent. Depending on the type of cable chain, the design of the one or more connecting bodies of the chain links, and / or the locking devices used, adjacent chain links may be able to pivot by a maximum of 60°, 40°, 30°, or 20°. Different pivot angles around the same axis of rotation may be possible in opposite directions. For example, in one direction of rotation, a pivot angle of at least 20°, 30°, 40°, 50°, or 60° may be possible, while the pivot angle in the opposite direction around the same axis of rotation may be limited to a maximum of 2°, 5°, or 10°, or prevented entirely. Therefore, a greater degree of pivoting may be possible in the positive direction of rotation than in the negative direction (or vice versa). The pivotability of adjacent chain links of the first, second, third and / or fourth section about the first and / or second axis of rotation can also be limited in such a way that a bending of the guided cables by a radius of curvature of less than 8 cm, less than 5 cm, less than 3 cm, less than 1 cm or less than 0.5 cm is blocked. The cable routing system according to the invention can be formed by a continuous cable chain. The outer bodies of the chain links in the first, second, third, and / or fourth sections are preferably identical or have the same external dimensions (all permutations of the sections are considered). This avoids protruding parts and achieves a consistent storage space for the cables, minimizing obstruction to the user and the risk of injury. Furthermore, this results in a homogeneous appearance for the entire cable routing system, which is appreciated by many users. The outer bodies of the chain links in the first, second, third, and / or fourth sections can be rectangular, square, round, or oval. The fourth section can run at least partially or mostly under the tabletop or in a recessed area (e.g., in a cable duct or in the space between two layers of a double-walled tabletop). For this purpose, the outer casings of the chain links in this fourth section can optionally have different dimensions than those of the chain links in the first, second, and / or third sections. In particular, it is preferred to use casings with a smaller cross-section and / or smaller external dimensions than those of the first, second, and / or third sections in order to keep the cable duct as flat as possible. Specifically, the casings of the chain links in the fourth section can be narrower. The casings of the chain links in the fourth section can therefore be designed to minimize the overall height of the cable duct in which they are installed.This minimizes the space taken up under the tabletop, allowing for greater freedom of movement for the user's legs. The fourth section can also be diverted and / or redirected within the catchment area. In doing so, it can essentially form a U-shape. According to a further aspect, the invention relates to a table leg or table frame with a cable chain or cable guide according to the invention. The cable chain preferably runs along at least the first section and / or along a part of the second section of the table leg. The table leg according to the invention can, in particular, be height-adjustable. For this purpose, it can have a first part that is immovable and / or fixed, and a second part that is movable and / or extendable. The table leg can be designed as a telescopic leg, wherein the outer part of the telescopic leg can form the lower, fixed part and the inner part of the telescopic leg can form the extendable, upper part. Alternatively, the inner part of the telescopic leg can form the lower, fixed part of the table leg and the outer part of the telescopic leg can form the upper, movable part of the table leg. The first section can extend, in particular, along the stationary part. The second section can run at least partially or largely within the extendable part of the table leg, especially when the table is raised. In this case, the first coordinate axis X of Fig. 1A can extend vertically and / or longitudinally along the first section and / or the part of the second section that runs along the table leg. The second and / or third coordinate axes Y can therefore be horizontal, with the second coordinate axis preferably pointing from the longitudinal axis of the cable chain towards the table leg. In the first section, the cable chain preferably cannot bulge out from the table leg in the (positive and / or negative) direction of the second coordinate axis Y. To achieve this, the cable chain can be rigidly designed along this section, or—since the table leg blocks movement along the second coordinate axis Y in the positive direction—designed such that adjacent chain links can only pivot relative to each other in the direction of the table leg (positive rotation about the third coordinate axis Z of the higher link with respect to the lower one). Alternatively, the cable chain along the first section can be designed so that it can only unwind away from the table leg, i.e., that the cable chain only allows movement in the negative direction of the Y-axis (negative rotation of the higher link about the third coordinate axis Z with respect to the lower one).Since the cable chain is preferably attached to the table leg along the first section, this even allows for a rigid fastening of the chain links of the first section. For this purpose, one, two, or more fastening devices can be used, such as those described in the parallel German patent application of the applicant in this case entitled "Device for fastening a cable guide chain," which has the same filing date. The entire contents of that application are hereby incorporated by reference. The cable chain can thus be attached to the table leg at one, two, or more points along the first section, preferably in such a way that it can be attached to and / or detached from the table leg without tools and / or without leaving any trace. Furthermore, the cable chain can preferably be adjusted when attached, for example, by allowing the fastening device to remain movable along the table leg and / or rotatable around the table leg even when attached. If a tunnel section is provided along the first section, the cable chain can also be held in place on the table leg via this tunnel. For this purpose, the fastening devices and / or the tunnel section can, for example, include fastening straps (e.g., with buckles, buttons, and / or hook-and-loop fasteners), adhesive dots, magnets, and / or hook-and-loop fasteners with a corresponding counterpart on the table leg. Along the second section, the cable chain is preferably attached or fixed to the table leg at only one point or not at all. Adjacent chain links are preferably pivotable relative to each other about a first axis of rotation (see above). This first axis of rotation is preferably horizontal and / or congruent with the third coordinate axis Z when the cable chain is attached to the table leg. This allows the cable chain to be designed so that it can unroll along the second section from the table leg in the negative direction of the second coordinate axis Y and / or bend away from the table leg in this direction. The cable chain can also be designed along the second section so that it can bend towards the table leg. Alternatively, such bending towards the table leg along the second section can be prevented or reduced to a minimum (e.g., to a maximum rotation angle of adjacent chain links of 2°, 5°, or 10°). By preventing the cable chain from rotating along the second section about any axes perpendicular to the longitudinal direction of the cable chain and / or the first axis of rotation, pivoting of adjacent chain links about the second coordinate axis Y (in positive and / or negative directions of rotation) can be avoided. This prevents the cable chain from deforming along the second section in the direction of the third coordinate axis Z (in positive and / or negative directions). This, for example, prevents the cable chain from buckling in the direction of the third coordinate axis Z (positive and / or negative directions). The third section of the cable chain can be designed and / or configured to allow cables to be routed along the floor to the table leg, particularly from a floor outlet. The third section is especially suitable for routing the cables from the floor outlet to the first section and can therefore connect directly to the first section (preferably on the side of the first section opposite the second section). A portion or most of the chain links of the third section can thus extend along the floor. However, it should be noted that the third section can also extend partially along the table leg and / or along the transition area between the floor and the table leg. Along the third section, the cable chain is preferably designed such that the first axis of rotation of the chain links of the third section is essentially parallel to the second coordinate axis Y. For the chain links of this section extending along the ground, this can mean that the first axis of rotation is vertical and / or perpendicular to the ground. In this case, the second axis of rotation can be essentially parallel to the third coordinate axis Z and, for the chain links running along the ground, essentially horizontal. The fourth section can be designed and / or configured to guide the cables along a tabletop and / or in a cable duct, which may, for example, extend under the tabletop. At least some or all of the chain links of the fourth section may run along or under the tabletop and / or in the cable duct. According to a first embodiment of the table leg or table frame according to the invention, the cable chain is designed such that it sags along the second section when the table leg is lowered. This provides sufficient length for raising the table leg. The cable chain can sag in the shape of a U or a horizontal S, so that the second section of the cable chain can assume a substantially serpentine shape. The cable chain can be at least partially attached to the table leg. Alternatively or additionally, one end of the cable chain can be attached to the floor (e.g., via a base and / or a base plate) or to the table frame, and the other end to the tabletop and / or a cable duct. If a base and / or a base plate is used, a mounting rod can be provided on it, via which the chain links of the first section are rigidly connected to one another.The base and / or the base plate (in particular the mounting rod) can be arranged such that the cable chain extends substantially vertically upwards from the base and / or the base plate in the first section, wherein the angle formed by the longitudinal axis of the cable chain with the ground in the first section is preferably between 80° and 100° or between 85° and 95°, more preferably at 90°. The first section can therefore also be referred to as the "vertical" section. The unwound length and / or height of the first (preferably rigid) section can be at least 2%, at least 5%, at least 10%, at least 20%, or at least 30% of the combined unwound length of the first and second sections (i.e., the total unwound chain length if no further sections are provided). The spacing between the chain links of the first section can optionally be less than the spacing between the chain links of the second section, preferably by at least 20%, at least 50%, or at least 60%. Thus, spacing a can be at least 2 mm, at least 5 mm, at least 10 mm, or at least 20 mm less than spacing b. Optionally, the chain links in the first section can also be abutting each other (spacing equal to zero), so that the first section can be considered a "closed" cable chain. The cable chain, particularly its first and second sections, is preferably dimensioned and / or aligned with the table height such that the cable chain (especially the sagging part of the cable chain) does not touch the floor even when the table leg or table frame is fully lowered. The cable chain therefore preferably "floats" above the floor. The distance between the lowest point of the chain links in the sagging section and the floor is preferably at least 2 cm, at least 5 cm, or at least 10 cm. However, it can also be at least 20 cm, at least 30 cm, or at least 40 cm. Depending on the embodiment of the cable chain, these dimensions can alternatively apply to a minimum distance between the centerline of the cable chain in the sagging section and the floor when the table leg or table frame is lowered. When the table leg or frame is lowered, the distance between the lowest point of the chain links in the sagging section is preferably less than the length of the first section and / or less than the height at which this first section transitions into the second section. When the table leg or frame is in its neutral position, the distance between the lowest point of the chain links in the sagging section and the floor preferably corresponds approximately to the length of the first section and / or the height at which the first section transitions into the second section. When the table leg or frame is fully extended, the distance between the lowest point of the chain links in the sagging section and the floor is preferably greater than the length of the first section and / or greater than the height at which the first section transitions into the second section.Depending on the design of the cable chain, these conditions can alternatively apply to the smallest distance between the centerline of the cable chain in the sagging area and the ground. According to a second embodiment of the table leg according to the invention, the second section of the cable chain can run along the extendable part, preferably to approximately the end of this extendable part. The second section can preferably be provided essentially straight along the extendable part of the table leg and / or not sag noticeably. This makes it possible to arrange the second section of the cable chain so that, when the table leg is lowered, it is pushed into a retraction space (e.g., into a cable duct or into the space between two layers of a double-walled tabletop, which can each run horizontally beneath the tabletop). In the second design variant, an alternative or additional retraction device can be used, which exerts a pulling force on the section of the cable chain when the table leg is lowered, actively drawing it into the cable channel. In this case, a deflection device can be used to guide the second section of the cable chain into the cable channel during the lowering process. The retraction device can, for example, incorporate spring elements. In the second design variant, a deflection device is also used to successively redirect the chain links of the section from a vertical to a horizontal orientation as it is lowered. This deflection device can have an inner bracket (on the inside of the curved section) and / or an outer bracket (on the outside of the curved section). The deflection device can also be equipped with lateral guides. The outer bracket is particularly advantageous in designs where the cable chain is subjected to pressure by the lowering of the table leg and / or is passively pushed into the intake area. Additionally, an adapter can be provided for connecting two cable chains and / or for connecting two sections of a cable chain. The adapter has a first connection section designed for attaching a first cable chain or cable chain section to the adapter, and a second connection section designed for attaching a second cable chain or cable chain section to the adapter. The first and second connection sections of the adapter can be designed so that a different type of cable chain can be attached to the first connection section than to the second. This allows the properties of different cable chains to be combined along a continuous cable run. Optionally, the first and / or second connection section can be designed so that different types of cable chains can be attached to each.The adapter can be designed as an integral component. In particular, it can arrange the first and second cable chains relative to each other in such a way that a substantially closed transition between the cable chains is achieved. The cables preferably lie freely within the adapter over a length of less than six, four, two, or one time the distance between two chain links of the first or second cable chain. Additionally or alternatively, the adapter's connection sections can be designed such that the second cable chain (or the second cable chain section) is offset or rotated relative to the first cable chain (or the first cable chain section) about the longitudinal axis of the first and / or the second cable chain (and / or about the longitudinal axis of the last link of the respective cable chain attached to the adapter) (e.g., offset by 60° to 120°, 80° to 100°, or approximately 90°). For example, if the first and second cable chains have similar or comparable degrees of freedom (e.g., the ability of adjacent chain links to pivot about only one axis of rotation perpendicular to the longitudinal axis of the cable chain and / or the respective chain links), this can result in different degrees of mobility in space along the first and second cable chains.The axis of rotation of the second cable chain is thus arranged rotated around the longitudinal axis of the cable guide relative to the axis of rotation of the first cable chain. The second cable chain can have the lowest possible profile so that it occupies minimal space under the table. This profile preferably corresponds approximately to the narrowest profile of the first cable chain. The first cable chain can preferably have a rectangular cross-section, and the second cable chain can preferably have a square cross-section. The maximum width or height of the second cable chain is preferably smaller than the maximum length or width of the first cable chain. This adapter can be designed as a sled or mounted on a sled. Furthermore, a cable guide with an adapter and a cable chain can be provided. The adapter can be positioned, in particular, between the previously described second section of the cable chain according to the invention and the previously described fourth section of the cable chain according to the invention. The previously described second section preferably forms the first cable chain and the previously described fourth section the second cable chain, both of which are attached to the adapter. The cable guide with adapter according to the invention therefore preferably has at least these two sections, each of which can possess the previously described degrees of freedom and / or properties. Optionally, the first and / or the third section of the previously described cable chain according to the invention can also be provided along the cable guide. These can also possess the aforementioned degrees of freedom and / or properties. Another aspect relates to a set with an adapter and two cable chains and / or cable chain sections that can be attached to it, wherein the first cable chain and / or cable chain section can have the properties of the second section of the cable chain described above. The second cable chain and / or cable chain section can have the properties of the fourth section of the cable chain described above. According to another aspect, the invention relates to a table with a table leg according to the invention. This can be, in particular, a height-adjustable table. According to a first embodiment of the table or table frame, the second section of the cable chain according to the invention is fixed to the tabletop. The second section can be fixed to the tabletop, in particular, at the end opposite the first section of the cable chain. In this case, the cable chain can be positioned on the table such that it sags along the second section to provide sufficient length for raising the table. As mentioned above, the second section can sag, in particular, in the shape of a U or a horizontal S. According to a second embodiment, the table or table frame according to the invention can have a cable channel that preferably extends along the tabletop (especially underneath it). In this case, the cable chain can be positioned on the table such that the second section of the chain is at least partially enclosed in the cable channel when the table is lowered. The fourth section of the cable chain can also run partially or completely within the cable channel. In this case, the limited mobility of the second section of the cable chain can ensure that, when the table is lowered, the cable chain is only inserted into the cable channel in the desired direction and does not bulge or kink in other directions along the table leg or within the cable channel.This can be achieved, for example, by allowing adjacent links of the second section of the cable chain to pivot only about an axis of rotation that is perpendicular to the longitudinal axis of the cable chain and / or to the longitudinal axes of the respective chain links. This first axis of rotation is preferably parallel to the third coordinate axis Z and / or horizontal. Furthermore, pivoting about the first axis of rotation is preferably only possible in one direction or reduced to a minimum in the opposite direction (e.g., to a maximum rotation angle of 2°, 5°, or 10°). In particular, a greater degree of rotation of the higher chain link of the second section relative to the lower adjacent chain link in the negative direction of rotation about the third coordinate axis Z is desirable than in the positive direction of rotation about this coordinate axis Z. The table may also have a retraction device (e.g., in the form of a spring mechanism) in the retraction area (e.g., in the cable channel) and / or under the tabletop to retract the second section of the cable chain into the retraction area (e.g., into the cable channel) when the table is lowered. This device may include springs, preferably designed to be deflected when the table is raised, as the second section is pulled out of the cable channel. The springs may, for example, be spiral springs and / or helical springs. An adapter may be provided under the tabletop and / or in the cable duct to connect the second and fourth sections of the cable chain. According to a further aspect, the present invention relates to a table frame and to a table with such a table frame. The table frame preferably has at least one height-adjustable table leg and a cable chain for guiding cables, wherein a section of the cable chain extends along the table leg. Furthermore, preferably at least one fastening device is provided that secures a first end of the section of the cable chain extending along the table leg. The section of the cable chain is preferably guided vertically along the table leg. The table frame or table according to the invention preferably further comprises a retraction chamber for the cable chain and a retraction device that tensions and loads the section of the cable chain extending along the table leg. In addition, a deflection device may be provided that deflects the section of the cable chain and guides it into the retraction chamber. The table leg of the table frame can have a fixed part and an extendable part. The fixed part can be formed by the outer part of a telescopic leg. Alternatively, the fixed part can be formed by the inner part of a telescopic leg. The table leg can thus correspond to the preceding description. The cable chain of the table frame can be a cable chain according to the invention as described above. However, it can also be a cable chain that has uniform mobility along its entire length. The section of the cable chain that extends along the table leg and / or is drawn into the intake space can be designed according to the second section of the cable chain according to the invention. In particular, the section of the cable chain that extends along the table leg and / or is drawn into the intake space is preferably designed such that adjacent links of the section can pivot relative to each other about at least one axis of rotation. This at least one axis of rotation preferably runs substantially horizontally. The cable chain can therefore be deformable along the section in a vertical plane. The cable chain can further comprise one or more additional sections with different degrees of mobility, for example, an additional section corresponding to the first section of the cable chain according to the invention, an additional section corresponding to the third section of the cable chain according to the invention, and / or an additional section corresponding to the fourth section of the cable chain according to the invention. If a section corresponding to the third or fourth section of the cable chain according to the invention is provided, it is preferably designed such that it is not subjected to tensile stress by the pulling device. If the cable chain includes a section corresponding to the fourth section of the cable chain according to the invention, this section is preferably located within the retraction area. The fourth section can be arranged in the form of a helix and / or twisted about its longitudinal axis, for example, as described above for the second embodiment of the table or table frame. Alternatively or additionally, an adapter can be provided between the section extending along the table leg and / or being retracted into the retraction area and the fourth section (see above). This adapter can be designed as a slide or mounted on a slide. The cable chain can lie against the table leg in the area of ​​the fixed part or be positioned at a distance of no more than 0.5 cm, 1 cm, 2 cm, or 5 cm from the table leg. Alternatively or additionally, in the area of ​​the extendable or inner part, the cable chain can be positioned at a distance from the table leg so that the lowering of the table leg (i.e., preferably the retraction of the telescopic leg) is not obstructed. For this purpose, the cable chain can be positioned at least 0.5 cm, 1 cm, 2 cm, 3 cm, or 5 cm from the table leg in the area of ​​the extendable or inner part. The cable chain is preferably fixed to the table frame via the fastening device, for example, to the table leg and / or the base of the table leg (e.g., to the crossbars at the bottom of the table leg). Alternatively, the fastening device can fix the cable chain to the floor. The fastening device is preferably designed and / or configured to absorb the tensile force of the retraction mechanism. For this purpose, a strain relief can be provided in the area of ​​the fastening device. For example, the fastening device can have a strain relief for the cable chain or be designed as such a strain relief. The table frame according to the invention can comprise exactly one or more fastening devices. The one or more fastening devices can be provided on the fixed part. This applies in particular if the fixed part is located below the extendable part. Alternatively, the extendable part can be located below the fixed part. In this case, the one or more fastening devices are preferably located at the base of the table leg and / or near the floor. The fastening device can, for example, be designed as a continuous profile, preferably configured to accommodate cables. This profile can be rigid. It can also be designed to allow cables routed along the cable chain to continue within the profile, preferably so that the profile conceals the cables. The profile can have the same external dimensions and / or shape as the chain links of the section of the cable chain that extends along the table leg and / or is drawn into the retractable area. If further sections of the cable chain according to the invention are provided (e.g., a corresponding first and / or third section), the external dimensions and / or shape of the profile can also correspond to the external dimensions or shape of the chain links of these sections. The section of the cable chain that extends along the table leg and / or is pulled into the intake area can be directly connected to the profile. This applies in particular to the last chain link of this section, which may, for example, be screwed to the profile or attached to it via a snap-fit ​​device. The profile can be provided and / or attached along the fixed part of the table leg. It can extend substantially along the entire fixed part of the table leg. Furthermore, the profile can be fixed at least two points or at exactly two points on the table frame (preferably on the fixed part of the table leg). In general, the fastening device can be attached to the table leg using one or more fixing devices. These can include, for example, a clamp, a snap fastener, a screw, a magnet, a hook-and-loop fastener, and / or a fastening strap (e.g., a fastening strap with a buckle, buttons, and / or a hook-and-loop fastener). The fixing device can be integrated into the fastening device (e.g., as an integral part of it) or into the table frame. Alternatively or additionally, the fastening device can be glued to the table leg, its base (e.g., to one of the crossbars at the bottom of the table leg), or to the floor. Furthermore, the fastening device can be designed as an angle bracket attached under the table leg or one of the crossbars at the bottom of the table leg, perhaps using a snap-in mechanism. Finally, the table leg can rest on the fastening device to secure it. The retraction space of the table frame or table according to the invention can be designed such that, when a tabletop is mounted on the table frame, it runs under the tabletop and / or parallel to it. The retraction space can, in particular, run horizontally. The retraction space preferably forms a retraction plane that can move with the table frame and which can, for example, be horizontal. The section of the cable chain is preferably pulled into the retraction space along this retraction plane. The intake space can be a cavity located in or under the tabletop. For example, the intake space could be a cable duct. Alternatively, the intake space can be formed by the gap between two tabletops. The deflection device of the table frame or table according to the invention is preferably designed and / or configured such that the section of the cable chain extending along the table leg and / or being drawn into the intake space runs vertically along the table leg and is deflected at the deflection device so that it is subsequently inserted horizontally into the intake space. The section of the cable chain can be deflected at the deflection device, for example, by 70° to 110°, 80° to 100°, or approximately 90°. For this purpose, the deflection device can have an inner bracket (on the inside of the curved section) and / or an outer bracket (on the outside of the curved section). The deflection device may also have lateral guide elements or guide rails, which may be designed and / or constructed in such a way as to make it more difficult for the cable chain to slip out in one or more directions transverse to its longitudinal direction. The cable retraction device of the table frame or table according to the invention is preferably designed and / or configured such that the cable chain is permanently subjected to tensile stress and / or held under preload. A tensile load and / or preload is preferably applied independently of the position and / or adjustment of the table leg. However, the magnitude of the tensile load and / or preload can vary with the height of the table leg. The cable chain is preferably always held in a desired operating position along the table leg by the tensile load and / or pretension. In this operating position, the cable chain preferably extends tautly along the table leg, i.e., preferably essentially perpendicular or vertically. The tensile load and / or pretension ensures that the section of the cable chain does not bulge when the table leg is raised or lowered, particularly not in the direction of the second coordinate axis Y (positive and / or negative), and / or does not kink, particularly not in the direction of the third coordinate axis Z (positive and / or negative). For this purpose, the retraction device preferably provides a tensile and / or pretensioning force of at least 3 N, 10 N, 20 N, 30 N, 50 N, 75 N, 100 N, or 150 N (approximately 0.3 kg, 1 kg, 2 kg, 3 kg, 5 kg, 7.5 kg, 10 kg, or 15 kg tensile force).The tensile load and / or pre-tension also ensures that the cable chain is automatically returned to its operating position even if it is touched and / or manipulated by the user of the table. The retraction device is preferably designed and / or configured to retract the cable chain into the retraction area when the table frame is lowered. For this purpose, the retraction device can engage a second end of the section, which is preferably opposite the first end. The section that extends along the table leg and / or is retracted into the retraction area preferably comprises at least 5 or at least 10 chain links (particularly between the first and second ends). To pull in the section of the cable chain, the pulling device preferably has a pulling element. This can be fixed on one side to the section of the cable chain (preferably at the second end) and on the other side to the table frame (e.g. in the pulling area). According to one variant, the traction element can comprise one or more spring elements that are deflected when the table is raised and provide a restoring force when it is lowered. These spring elements can be one or more helical or spiral springs and / or one or more rubber bands. The traction element can also include a length of rope. This rope can be equipped with a spring (such as a helical and / or spiral spring) to provide a restoring force. Alternatively or additionally, the rope can be wound up using a spiral spring. According to another variant, which can be provided as an alternative or in addition to the previous one, the pulling device and / or the pulling element is coupled to the table's height adjustment mechanism. The pulling device can include a cable section connected to the height adjustment mechanism. To compensate for tolerances and / or to provide the preload force, the cable section can include a spring element (e.g., a coil spring). According to another variant, the traction element can include a motor. The retraction mechanism can be located within the retraction area, for example in a cable duct or between the upper and lower parts of a double-walled tabletop. Alternatively or additionally, the retraction mechanism can be located below the retraction area or extend at least partially beneath it. The invention therefore provides various options for better adapting cable guides and cable chains to the respective installation situation. Particular advantages arise when attaching cable guides and cable chains to table legs and tables. This allows for advantageous cable routing along the various sections of the table leg and / or in a cable channel of the table. Furthermore, cable routing along the floor to the table can be improved. With the cable guides and cable chains of the invention, a continuous cable chain can be implemented along the floor and the entire table leg, exhibiting a homogeneous appearance with consistent cable sheaths. Moreover, the guided cables can be inserted into the cable guide or cable chain easily, securely, and uniformly along its entire length, thus greatly simplifying installation and modification.The cable guides and cable chains according to the invention can ensure safe cable routing along the entire cable guide or cable chain, particularly in transition areas such as the transition area from the table leg to the floor, from the fixed to the extendable part, and / or from the extendable part to the cable duct or the tabletop. This significantly reduces the risk of damaging the guided cables. Preferred embodiments of the invention are described below by way of example with reference to the drawings. These are merely schematic representations, which often omit other (optional) structures to clarify certain aspects or may include various optional, related aspects in a single representation. In this context, identical reference numerals indicate equivalent, similar, comparable, or identical components in the illustrated embodiments. The embodiments shown can be modified in many ways within the scope of the claims. The disclosure of the figures is not intended to limit the scope of the invention. It should be noted that the features of the aforementioned embodiments can be combined in a single embodiment. Embodiments of the invention can therefore, depending on the configuration, have all or only some of the aforementioned features. Figure 2 shows a schematic representation of a table leg according to the invention; Figure 3A shows a schematic representation of a cable guide according to the invention; Figure 3B shows the cable guide of Figure 3A, with some of the chain links hidden; Figure 3C shows a schematic representation of a cable guide according to a further embodiment; Figure 4A shows a schematic representation of a table leg according to a further embodiment; Figure 5B shows a schematic representation of a table leg according to the invention according to a further embodiment.Fig. 4B is a schematic representation of a modified variant of the table leg from Fig. 4A; Fig. 5 is an adapter; Fig. 6 is a schematic representation of a further variant of a table leg and table frame; Fig. 7 is a schematic representation of a modified variant of the table leg from Fig. 6; Fig. 8A is a schematic representation of a table frame according to a further embodiment in a raised position; Fig. 8B is a schematic representation of the table frame from Fig. 8A in a lowered position. Fig. 2 schematically depicts a table leg 1 according to an embodiment of the invention. The table leg 1 has a fixed part 2 and an extendable part 3. Furthermore, a cable guide 10 is provided on the table leg 1 to route cables from a floor outlet 5 to the area of ​​a tabletop (not shown) (e.g., to a cable junction box or a cable grommet in the tabletop). For this purpose, the cable guide has a cable chain 70 comprising a first section A, a second section B, and a third section C. The first section A serves to guide the cables along the fixed part 2, while the second section B guides the cables along the extendable part 3 and provides sufficient slack and / or length for raising and lowering the table leg 1.The third section C extends in particular along the floor to guide the cables from the floor outlet 5 to the table leg 1 (and in particular to the first section A of the cable chain 70). The third section C can also bridge the transition area at the lower end of the table leg 1. For a more detailed examination of the cable routing 10, the coordinate system X, Y, Z, shown in Fig. 1A and Fig. 1B, can be used. Since the coordinate system can be moved along the cable chain 70, the first coordinate axis X extends along the first section A preferably in a vertical direction and / or parallel to the table leg 1 (preferably with the positive coordinate direction pointing upwards). The second coordinate axis Y and the third coordinate axis Z can therefore be horizontal and / or parallel to the floor along the first section, with the second coordinate axis Y preferably pointing from the longitudinal axis of the cable chain 70 and / or from the longitudinal axis of the respective chain link to the table leg 1. The position of the chain links of the first section A is preferably fixed after the cable chain 70 is attached to the table leg 1, or only movable with the respective fastening device. This prevents, in particular, bulging of the cable chain 70 along this first section A in the direction of the coordinate axis Y (especially in the negative coordinate direction). It also prevents buckling in the direction of the coordinate axis Z (positive and / or negative coordinate direction). The cable chain 70 can also be designed along the first section A in such a way that the cable chain 70 is not compressible. This ensures a constant distance between the links of the cable chain 70. Along the second section B, adjacent links of the cable chain 70 are pivotable relative to each other about exactly one axis of rotation, which lies perpendicular to the longitudinal axis of the cable chain 70. In particular, pivotability about the third coordinate axis Z, which is preferably horizontal along the entire second section B, is possible. This allows the second section B to be given the mobility of an armored or tracked vehicle. On the one hand, this allows the cable chain 70 to sag along the second section B, so that the cable chain 70 can unroll and sag from the table leg 1 along this section B. On the other hand, it prevents the cable chain 70 from buckling along the second section B in the direction of the third coordinate axis Z (positive and / or negative coordinate direction). In the embodiment of Fig.2. The second section B therefore has exactly one more degree of freedom than the first section A of the cable chain 70 (swivelability about an axis of rotation). Furthermore, by avoiding the compression of the cable chain 70 along the second section B, a constant distance between the chain links of the second section B can be achieved. In the illustrated embodiment, the second section B connects directly to the first section A at its first end. The opposite second end of the second section B can be fixed to table leg 1 or, preferably, to a tabletop (not shown). The third section C should allow the cables to be routed as flexibly as possible along the floor, in particular to reach a specific outlet (such as a floor outlet 5) and / or to bypass other objects. For this purpose, the cable chain 70 along the third section C is preferably designed such that adjacent chain links can be pivoted relative to each other about at least one first axis of rotation. This first axis of rotation is preferably congruent with the second coordinate axis Y along the third section C. For the chain links of the third section C that run on the floor, the first axis of rotation is preferably provided substantially vertically and / or parallel to the table leg 1 in order to achieve movement in the plane of the floor. The second coordinate axis Y can therefore point downwards for the chain links that run on the floor. The first coordinate axis X and the third coordinate axis Z can thus be horizontal. To enable a clean transition at the lower end of the table leg 1, the cable chain 70 can be further designed along this section C such that adjacent chain links can pivot relative to each other about a second axis of rotation, which is perpendicular to the longitudinal direction of the cable chain 70 and perpendicular to the first axis of rotation. This second axis of rotation can be congruent with the third coordinate axis Z and / or run essentially horizontally. This allows the cable chain 70 to bend away from the floor along the third section C, thus guiding the cables to the first section A of the cable chain 70. Furthermore, unevenness in the floor can be compensated for, and the cable chain 70 can also be guided over other objects (such as other cable chains) along the third section C. The third section C can also be designed such that the chain links are slidable relative to each other along the longitudinal axis of the cable chain 70.The cable chain 70 can therefore be compressed along this section C. A cable guide 10 is provided on the table leg 1, comprising a cable chain 70 with three sections A, B, and C, each exhibiting a different degree of mobility and / or a different number of degrees of freedom between adjacent chain links. The second section B has at least one or exactly one more degree of freedom than the first section A. Furthermore, the third section C preferably has at least one, at least two, or even three more degrees of freedom than the second section B. The third section C can therefore have at least two, at least three, or even four more degrees of freedom than the first section A. Nevertheless, the cable chain 70 has identical sheath bodies along all three sections A, B, and C (i.e., sheath bodies with identical cross-sections and / or identical external dimensions).Furthermore, the chain links along all three sections can have identical chain spacing and / or identical connecting bodies. Additionally, the outer casings and / or the connecting bodies along all three sections can be made of the same material. The casings can, among other things, have identical entry openings for the guided cables. This ensures that the guided cables can be inserted into the cable chain 70 in the same way along all three sections, even after the cable chain has been mounted on table leg 1. This also ensures a homogeneous appearance. By using identical dimensions for the chain links, protruding components are also prevented. This minimizes the risk of injury and ensures maximum legroom for the user. The necessary mobility of the cable chain along sections A, B, and C can be achieved through various measures. These include, in particular, the design of one or more connecting elements of the chain links and their receptacles. Furthermore, it is possible to provide certain locking devices between the chain links of a section, by means of which the mobility can be selectively restricted or completely prevented (see, for example, the locking devices described in the parallel German patent application of the applicant in this case, dated the same day, entitled "Table Leg," the full disclosure of which has been incorporated into the present application by reference). Finally, the cable chain 70 can also be rigidly configured along a section (in particular along the first section A) by using a mounting or guide rod. Fig. 3A shows the cable guide 10 from Fig. 2 according to one embodiment. The first section A is rigid. As shown in Fig. 3B, where some of the chain links of the first section are hidden, this can be achieved, for example, by means of a rigid mounting rod 30 to which the chain links of the first section A are connected. The first section A can optionally (as shown in Fig. 3B) be attached to the table leg by means of suitable fastening devices that engage the mounting rod 30. Fig. 3C shows another way to form a rigid section A. Here, at least some of the chain links of section A are replaced by a rigid mounting profile 40. Its outer dimensions preferably correspond substantially to the outer dimensions of the cable chain links of the cable chain 70, in order to achieve a homogeneous appearance despite the use of the mounting profile 40 and to prevent the risk of injury from protruding parts. In this case, the first section A can be attached to the table leg via the mounting profile 40. Alternatively or additionally, the profile 40 can be attached to the table leg by the cable chain 70, which in turn can be attached to the table leg by fasteners.Such fastening elements are described, for example, in the parallel German patent application of the applicant in this case, dated the same day, entitled "Device for fastening a cable guide chain," the full disclosure of which has also been incorporated by reference. The profile and / or the cable chain can be positioned close to (e.g., maximum 15 mm, maximum 10 mm, maximum 5 mm, or maximum 2 mm) the table leg or flush with it (no gap). The possibilities for designing the first section A shown in Figures 3B and 3C are not exhaustive. For example, the cable chain along the first section A can also be designed such that adjacent chain links can be pivoted relative to each other in exactly one of the two possible directions of rotation about exactly one axis of rotation, which is perpendicular to the longitudinal axis of the cable chain. Pivoting in the opposite direction about the axis of rotation is prevented as far as possible or reduced to a minimum (e.g., to a maximum angle of rotation of 2°, 5°, or 10°). If the first section A of the cable chain is designed such that the table leg itself blocks pivoting in the one direction in which pivoting is possible, the first section A also becomes immobile when attached to the table leg. Furthermore, the first section A can be designed on the table leg in such a way that it can only roll away from the table leg.In this case too, the movement will be completely blocked if the first section A is fixed to the table leg at least at two points (preferably at its beginning and at its end). Fig. 4A shows a table leg 1 with a cable guide 100 according to a further embodiment. The cable guide 100 of Fig. 4A differs essentially only in the design of the second section B of the cable chain 70 from the cable guide 100 of Fig. 2-3C. Regarding the design of the first section A and the third section C, reference can therefore be made to the preceding descriptions. In cable routing 100, the second section B of the cable chain 70 runs essentially along the extendable part 3 of the table leg 1. The second section B terminates in a cable channel K, which is typically located under a tabletop (not shown). Specifically, the second section B is designed to be inserted and / or retracted into the cable channel K when the table leg 1 lowers. Conversely, when the table leg 1 raises, the second section B is pulled out of the cable channel K. This compensates for the change in length of the table leg 1 when the extendable part 3 is extended. The second section B can be designed such that it is passively inserted into the cable duct K when the table is lowered, preferably without bulging along the extendable part 3 (in particular not in the negative direction of the coordinate axis Y) or buckling (in particular in the positive and / or negative direction of the third coordinate axis Z). For this purpose, the second section B can be designed such that the higher chain link of two adjacent chain links relative to the lower chain link can only be pivoted about the third coordinate axis Z, preferably only in the negative direction of rotation. In the positive direction of rotation, the pivoting about the third coordinate axis is preferably completely blocked or limited to a minimum, about 2°, 5° or 10°, while in the negative direction a pivoting of at least 10°, at least 20°, at least 30°, at least 40°, at least 50° or at least 60° is permitted.This allows the cable chain 70 to unwind along the second section B only in the negative direction of the second coordinate axis Y from the table leg 1. However, bulging in this direction and / or buckling in the direction of the coordinate axis Z is prevented along the extendable part 3 of the table leg 1. Likewise, bulging and / or buckling within the cable channel K is prevented. This ensures that when the table leg 1 is lowered, the second section B can only be moved along the cable channel K (specifically, into it). According to a further embodiment, shown in Fig. 4B, the second section B can also be actively retracted into the cable duct K. For this purpose, a spring mechanism with one, two, or more springs 90 (e.g., coil springs) can be provided in the cable duct. These are preferably tensioned by pulling the second section B out of the cable duct K when the table leg 1 is lowered. When the table leg 1 is lowered, the cable guide 100 (in particular the second section B) is then actively retracted into the cable duct K by the restoring force of the springs 90. The mechanism can, in particular, act on the second section B (e.g., at its end). A fourth section D can be attached at one end to the second section B or to an adapter. At its other, opposite end, the fourth section D can terminate in the area of ​​a cable junction box or cable grommet in the tabletop. As further shown in Fig. 4B, the cable guide 100 can also have a fourth section D, which preferably adjoins the second section B and is provided in the cable duct K. The fourth section D can have the same number of degrees of freedom as the second section B. Preferably, however, adjacent chain links of this section can be moved relative to each other by at least one, at least two, or even three more degrees of freedom than along the second section B. The fourth section D is preferably designed such that adjacent chain links can be rotated relative to each other about a first axis of rotation, at least along a part of this section, which runs essentially perpendicular to the longitudinal axis of the cable chain and essentially in the vertical direction. As indicated in Fig. 4B, the fourth section D can thereby be designed to form a U-shaped section within the cable duct K.This can compensate for changes in the length of the second section B, which extends along the cable duct K, when the table is raised or lowered. The first axis of rotation is preferably vertical along the U-shaped subsection and / or perpendicular to the first axis of rotation of the second section B. To achieve a vertical orientation of the axis of rotation of the fourth section D, the cable chain 70 can be designed along the fourth section D such that adjacent chain links can twist relative to each other about the longitudinal axis of the cable chain. In this case, the fourth section D can be twisted in a helical shape before the U-shaped subsection to arrange the chain links accordingly along the U-shaped subsection. For this purpose, the chain links can be designed so that their connecting body can deform somewhat reversibly (elastically) (especially when using a double connector or connecting lugs). Alternatively or additionally, there can be some play between the connecting body and the receptacle of the adjacent chain link, which can also allow twisting about the longitudinal axis. Alternatively or additionally, the second section B and the fourth section D can be connected via an adapter that positions the two sections at a 90° angle to each other around the longitudinal axis of the cable chain. In this case, the fourth section D can be formed by a different type of cable chain than the second section B. This allows, in particular, the use of a cable chain with smaller sheaths (especially narrower sheaths) and / or different connectors along the fourth section. This allows the cable channel K to be designed with a shallower profile, increasing legroom and thus the comfort of the desk users. A corresponding adapter 300, which can also constitute an independent aspect of the present invention, is shown by way of example in Fig. 5. The adapter 300 has a first connecting section 301 for a first cable chain 70 (which can also be referred to as the first cable chain section) and a second connecting section 302 for a second cable chain 80 (which can also be referred to as the second cable chain section). The first connecting section 301 is designed such that a first type of cable chain can be coupled to it (in the exemplary embodiment shown, a cable chain 70 with two connector attachments 73).The second connecting section 302, on the other hand, is designed such that a different type of cable chain can be coupled to it (in the exemplary embodiment shown, a cable chain 80 with connecting bodies 73 in the form of connecting lugs, into which connecting pins 76 of an adjacent chain link can engage). In the illustrated embodiment, the first connecting section 301 is therefore designed as a plug receptacle with snap-in devices for the plug contacts, while the second connecting section 302 has projections that engage in the connecting lugs of the first chain link of the second cable chain 80. Fig. 6 shows another table frame with a table leg 1 according to a further embodiment of the invention. In this case, a cable chain 70 or cable guide according to the invention with sections A, B, C and / or D of different mobility can be used. However, a cable chain with uniform mobility can also be used. In the table frame of Fig. 6, a section of the cable chain 70 is fixed at its first end 50 to the table leg by means of a fastening device. In the illustrated embodiment, the fastening device is provided at the lower end of the table leg 1, but it can also be arranged higher, for example in the area of ​​the fixed part 2 of the table leg 1. This applies in particular if the fixed part is formed by the outer part of a telescopic leg. If the fixed part is formed by the inner part of a telescopic leg, the first end 50 is preferably attached to the base of the table leg 1 and / or to the floor. The section of the cable chain 70 extending along the table leg is designated with the reference numeral B in the illustrated embodiment to indicate that it can be configured according to the second section B of the cable chain described above. However, this section can also have various degrees of freedom along its length and, in particular, can be configured along the fixed part 2 according to section A of the cable chains according to the invention (i.e., rigid). A rigid profile 40 can also be used along the fixed part 2 (see Fig. 3C). The profile is preferably designed as a fastening device and thus secures the connected cable chains. Section B is guided by a deflection device 92 into a horizontal cable duct (not shown) in which a retraction device is provided. This device pulls on a second end 60 of section B to tension it and retract it into the cable duct when the table leg 1 is lowered. The deflection device 92 is formed by an inner bracket located on the inside of the curve. An additional outer bracket (not shown) may also be provided (on the outside). In the illustrated embodiment, the retraction device is formed by two coil springs 90. These are attached at one end to the second end 60 of section B. At the other end, they are anchored to the table frame (e.g., in the cable duct) (not shown). Since the springs 90 are pre-tensioned, section B of the cable chain is taut between the first end 50 and the second end 60, thus preventing bulging in the direction of the coordinate axis Y and buckling in the direction of the coordinate axis Z. The springs 90 are deflected when the table leg 1 is raised and section B is pulled out of the cable duct to compensate for the extension of the table leg. When the table leg 1 is lowered, section B is then retracted back into the cable duct due to the restoring force of the springs. The second section B (particularly at its second end 60) can have a section D as described above (see, for example, the description of Fig. 4B). Alternatively or additionally, the cable chain can have a section C as described above. This section can have a greater number of degrees of freedom than section B. Section C can, in particular, be designed and / or provided to extend along the ground. Fig. 7 shows a further variant of the table legs and table frames according to the invention. It particularly illustrates that section D, which adjoins section B, can also be guided back into the cable channel K by rotating adjacent links about the third coordinate axis Z and forming a U-shape. This, like the configuration in Fig. 4B, makes it possible to compensate for changes in the length of section B, which is provided in the cable channel K, when the table leg 1 is raised or lowered. Figures 8A and 8B show a cable chain 70 according to the invention on a table or table frame according to the invention with an extendable table leg 1. The cable chain 70 has at least a first section A and a second section B, wherein the cable chain 70 sags along the second section B. In this respect, the cable chain 70 is similar to that of Figures 2 and 3A to 3C. However, Figures 8A and 8B illustrate that the cable chain 70 can be positioned not only along the table leg 1, but also on the floor via a base plate 110. The base plate 110 can have a mounting rod to arrange section A substantially perpendicularly. The longitudinal axis of the cable chain in the first section A can therefore form an angle α with the floor (i.e., the horizontal), which can be, for example, 80° to 100°, 85° to 95°, or approximately 90°.The length ratios of sections A and B and the minimum distances H and h explained below can, of course, also occur in other embodiments, for example those according to Fig. 2 or 3A to 3B. This also applies to the distances a and b between the chain links. The unrolled length of section A can optionally be at least 5%, at least 10%, at least 20% or at least 30% of the combined unrolled length of sections A and B. The distance h between the lowest point of the chain links in the sagging area and the floor is preferably at least 2 cm, at least 5 cm, at least 10 cm, or at least 20 cm. Depending on the embodiment of the cable chain, these dimensions can also apply to a minimum distance H between the centerline of the cable chain in the sagging area and the floor when the table leg 1 or the table frame is lowered. For this purpose, the distance H and / or the distance h can be less than the length and / or height of section A when the table leg or table frame is lowered (see Fig. 8B). When the table leg 1 or table frame is in a neutral position, the distance H and / or the distance h can correspond approximately to the length and / or height of section A (see Fig. 8A). Finally, the distance H and / or the distance h can be greater than the length and / or height of section A when the table leg 1 or table frame is raised.the table frame is fully extended (not shown). As further shown in Fig. 8A, the distance a between chain links of the first section A can optionally be less than the distance b between the chain links of the second section B, for example by at least 10%, at least 20%, at least 50% or at least 60% less. Thus, the distance a can be at least 2 mm, at least 5 mm, at least 10 mm or at least 20 mm less than the distance b. The disclosure further reveals the following aspects: 1. A table leg (1) or table frame comprising: a continuous cable guide (10, 100) with a cable chain (70) for guiding cables, optionally along the table leg (1), which is formed by a plurality of interconnected chain links; wherein the cable guide has a first section (A) and a second section (B). 2. A table leg (1) according to aspect 1, wherein the cable guide along the second section (B) can be deformed by at least one more degree of freedom or by one rotational degree of freedom in a direction of rotation than along the first section (A). 3. A table leg (1) according to aspect 1 or 2, wherein the cable chain (70) has the first section (A) and the second section (B). 4. A table leg (1) according to aspect 1, 2, or 3, wherein the table leg (1) is height-adjustable.5. Table leg (1) according to aspect 1 to 4, wherein the table leg has a fixed or stationary part (2) and an extendable part (3). 6. Table leg (1) according to aspect 5, wherein the first section (A) extends along the fixed part (2). 7. Table leg (1) according to aspect 5 or aspect 6, wherein the second section (B) extends at least partially, preferably largely, in the area of ​​the extendable part (3), particularly when the extendable part (3) is extended. 8. Table leg (1) according to any of the preceding aspects, wherein the central axis of the table leg (and / or the vertical direction) forms a first coordinate axis (X) which, together with a second coordinate axis (Y) and a third coordinate axis (Z), spans a Cartesian coordinate system, the second coordinate axis (Y) pointing from the central axis of the cable chain (70) in the direction of the table leg (T).9. Table leg (1) according to aspect 8, wherein the second coordinate axis (Y) and the third coordinate axis (Z) are horizontal. 10. Table leg (1) according to any of the preceding aspects, wherein the cable guide (100) has a rigid tunnel section (40), wherein the tunnel section (40) is preferably provided in the region of the first section (A) and / or wherein the tunnel section has the same outer profile and / or the same outer dimensions as the outer bodies of the chain links of the first and / or the second section. 11. Table leg (1) according to 10, wherein the cable chain (70) is attached to the table leg (1) via the tunnel section (40). 12. Table leg (1) according to any of the preceding aspects, wherein the connection of the chain links in the first section (A) is designed such that no compression of the cable chain (70) is possible along the first section (A).13 Table leg (1) according to any of the foregoing aspects, wherein the chain links forming the first section (A) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the first section (A) are designed such that adjacent chain links cannot be pushed together. 14 Table leg (1) according to any of the foregoing aspects, wherein the chain links in the first section (A) are rigidly connected to one another. 15 Table leg (1) according to any of the foregoing aspects, wherein the chain links in the first section (A) are not pivotable relative to one another. 16 Table leg (1) according to any of the foregoing aspects, wherein the chain links in the first section (A) are only pivotable in the direction of the table leg (1), such that the pivoting is blocked by the table leg (1).17. Table leg (1) according to any of the foregoing aspects, wherein the chain links in the first section (A) are pivotable only in the direction away from the table leg (1), such that the pivoting can be blocked, for example, by two attachment points on the table leg provided along the first section (A). 18. Table leg (1) according to any of the foregoing aspects, wherein the first section (A) is attached to the table leg (1) at least at two points, preferably by means of a fastening strap (e.g., by means of a fastening strap with hook and loop fastener, buttons and / or a buckle), magnet(s), a clamp, a snap device, an adhesive tape and / or a hook and loop fastener point. 19. Table leg (1) according to any of the foregoing aspects, wherein the chain links in the first section (A) are connected to each other via a rigid connecting rod (30).20 Table leg (1) according to one of the foregoing aspects, wherein the second section (B) connects directly to the first section (A). 21 Table leg (1) according to one of the foregoing aspects, wherein the connection of the chain links in the second section (A) is designed such that no compression of the cable chain (70) is possible along the second section (B). 22 Table leg (1) according to one of the foregoing aspects, wherein the chain links forming the second section (B) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the second section (B) are designed such that adjacent chain links cannot be pushed together.23 Table leg (1) according to one of the preceding aspects, wherein the chain links forming the second section (B) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the second section (B) are designed such that adjacent chain links are pivotable relative to each other about a first axis of rotation that is perpendicular to the longitudinal axis of the cable chain (70) and / or perpendicular to the longitudinal axis of the respective chain links. 24 Table leg (1) according to aspect 23, wherein the cable chain (70) is provided on the table leg (1) such that the first axis of rotation for the chain links of the second section (B) is substantially horizontal. 25 Table leg (1) according to aspect 23 or 24, wherein the first axis of rotation for the chain links of the second section (B) is substantially parallel to the third coordinate axis (Z).26 Table leg (1) according to aspect 23, 24 or 25, wherein the first axis of rotation in the chain links of the second section (B) is provided such that the cable chain (70) can bend away from the table leg (1) along the second section (B) in the direction of the second coordinate axis (Y). 27 Table leg (1) according to any of the foregoing aspects, wherein rotation about the second coordinate axis (Y) is not possible in the chain links of the second section (B). 28 Table leg (1) according to any of the foregoing aspects, wherein the chain links along the second section (B) are designed such that the cable chain (70) can bend towards the table leg (1). 29 Table leg (1) according to one of the above aspects, wherein the connection of adjacent chain links in the second section (B) is designed such that the cable chain (70) along the second section (B) cannot bend away from the table leg in the direction of the third coordinate axis (Z) (positive and / or negative coordinate direction).30 Table leg (1) according to one of the foregoing aspects, wherein the connection of adjacent chain links in the second section (B) is designed such that the cable chain (70) cannot buckle along the second section (B) in the direction of the third coordinate axis (Z) (positive and / or negative coordinate direction). 31 Table leg (1) according to one of the foregoing aspects, wherein the chain links forming the second section (B) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the second section (B) are designed such that adjacent chain links can only be pivoted about the first axis of rotation.32 Table leg (1) according to one of the foregoing aspects, wherein the chain links forming the second section (B) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the second section (B) are designed such that adjacent chain links cannot be rotated relative to each other about the longitudinal axis of the cable chain and / or about the longitudinal axis of the respective chain links. 33 Table leg (1) according to one of the foregoing aspects, wherein the chain links forming the second section (B) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the second section (B) are designed such that adjacent chain links cannot be rotated relative to each other about the second coordinate axis (Y).34 Table leg (1) according to one of the preceding aspects, wherein the second section is designed to roll in the form of an armored or track chain and / or has the degrees of freedom of such a chain. 35 Table leg (1) according to one of the preceding aspects, wherein the mobility of adjacent chain links of the second section (B) is selectively restricted by locking elements, preferably to different degrees in opposite directions about the respective axis of rotation (e.g., in one direction of rotation at least 10° or at least 20° and in the opposite direction of rotation at most 2°, at most 5°, at most 10° or completely blocked). 36 Table leg (1) according to one of the preceding aspects, wherein the cable chain (70) further comprises a third section (C) designed to guide the cables along the floor to the table leg (1). 37 Table leg (1) according to aspect 36, wherein the third section (C) is directly connected to the first section (A).38 Table leg (1) according to aspect 36 or 37, wherein the connection of the chain links in the third section (C) is designed such that compression of the cable chain (70) along the third section (C) is possible. 39 Table leg (1) according to aspect 36, 37 or 38, wherein the chain links forming the third section (C) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the third section (C) are designed such that adjacent chain links can be pushed together.40 Table leg (1) according to one of aspects 36 to 39, wherein the chain links forming the third section (C) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the third section (C) are designed such that adjacent chain links are pivotable relative to each other about a first axis of rotation that is perpendicular to the longitudinal axis of the cable chain (70) and / or perpendicular to the longitudinal axis of the respective chain links. 41 Table leg (1) according to one of aspects 36 to 40, wherein the first axis of rotation in the chain links of the third section (C) is substantially parallel to the second coordinate axis (Y).42 Table leg (1) according to one of aspects 36 to 41, wherein the cable chain (70) is provided on the table leg (1) such that at least a part of the chain links of the third section (C) runs along the floor, the first axis of rotation of these chain links being substantially horizontal. 43 Table leg (1) according to one of aspects 36 to 42, wherein the connections along the third section (C) are designed such that adjacent chain links are pivotable relative to each other about a second axis of rotation that is perpendicular to the longitudinal axis of the cable chain (70) and / or perpendicular to the longitudinal axis of the respective chain links. 44 Table leg (1) according to aspect 43, wherein the second axis of rotation of the chain links of the third section (C) is perpendicular to the first axis of rotation of the respective chain links.45 Table leg (1) according to one of aspects 36 to 44, wherein the cable chain (70) is provided on the table leg (1) such that at least a part of the chain links of the third section (C) runs along the floor, the second axis of rotation of these chain links preferably being substantially vertical. 46 Table leg (1) according to one of aspects 42 to 45, wherein the second axis of rotation of the chain links of the third section (C) is substantially parallel to the third coordinate axis (Z).47 Table leg (1) according to any one of aspects 36 to 46, wherein the chain links forming the third section (C) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the third section (C) are configured such that adjacent chain links are rotatable about the longitudinal axis of the cable chain and / or about the longitudinal axis of the respective chain links relative to each other or not. 48 Table leg (1) according to any one of aspects 36 to 47, wherein the third section (C) is deformable by at least one, at least two, or three more degrees of freedom than the second section (B). 49 Table leg (1) according to any one of the preceding aspects, wherein the cable chain (70) has a fourth section (D) configured to guide the cables along a tabletop and / or in a cable duct extending under the tabletop.50 Table leg (1) according to aspect 49, wherein the cable chain (70) is provided on the table leg (1) such that at least part of the chain links of the fourth section (D) runs along a tabletop and / or in a cable duct extending under the tabletop. 51 Table leg (1) according to aspect 49 or 50, wherein the fourth section (D) connects directly to the second section (B). 52 Table leg (1) according to aspect 49, 50 or 51, wherein the connection of the chain links in the fourth section (D) is designed such that compression of the cable chain (70) along the fourth section (D) is possible or not possible.53 Table leg (1) according to one of aspects 49 to 52, wherein the chain links forming the fourth section (D) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the fourth section (D) are designed such that adjacent chain links are pivotable relative to each other about a first axis of rotation that is perpendicular to the longitudinal axis of the cable chain (70) and / or perpendicular to the longitudinal axis of the respective chain links. 54 Table leg (1) according to aspect 53, wherein the first axis of rotation of the chain links of the fourth section (D) is substantially perpendicular to the first axis of rotation of the chain links of the second section (B).55 Table leg (1) according to aspect 53 or 54, wherein the connecting bodies along the fourth section (D) are designed such that adjacent chain links are pivotable relative to each other about a second axis of rotation, which is perpendicular to the longitudinal axis of the cable chain (70) and / or perpendicular to the longitudinal axis of the respective chain links. 56 Table leg (1) according to aspect 55, wherein the second axis of rotation of the chain links of the fourth section (D) is perpendicular to the first axis of rotation of the respective chain links. 57 Table leg (1) according to one of aspects 49 to 54, wherein the chain links forming the fourth section (D) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the fourth section (D) are designed such that adjacent chain links can only be pivoted about the first axis of rotation.58 Table leg (1) according to one of aspects 49 to 57, wherein the chain links forming the fourth section (D) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link and wherein the connections along the fourth section (D) are designed such that adjacent chain links are not rotatable relative to each other about the longitudinal axis of the cable chain and / or about the longitudinal axis of the respective chain links.59 Table leg (1) according to one of aspects 49 to 58, wherein the chain links forming the fourth section (D) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link and wherein the connections along the fourth section (D) are designed such that adjacent chain links are rotatable relative to each other about the longitudinal axis of the cable chain and / or not about the longitudinal axis of the respective chain links, in particular such that a spiral twisting of the cable chain (70) along the fourth section (D) is enabled (for example in the form of a helix).60 Table leg (1) according to one of the foregoing aspects, wherein the cable chain (70) along the first section (A), the second section (B), the third section (C) and / or the fourth section (D) is designed such that, when pivoted about an axis of rotation perpendicular to the longitudinal axis of the cable chain and / or to the longitudinal axis of the respective chain links (i.e., in particular, the first and / or the second axis of rotation of the respective section), adjacent chain links can be pivoted in a first direction of rotation (positive or negative direction of rotation) about the respective axis of rotation by an angle of at least 10°, at least 20°, at least 30° or at least 40° relative to each other. 61 Table leg (1) according to aspect 60, wherein, when pivoted about this axis of rotation, adjacent chain links can be pivoted in the opposite direction of rotation (negative or negative direction of rotation) about the respective axis of rotation by an angle of at least 10°, at least 20°, at least 30° or at least 40° relative to each other.(positive direction of rotation) can be pivoted relative to each other by a maximum angle of 2°, 5°, or 10°, or cannot be pivoted relative to each other in this direction of rotation. 62 Table leg (1) according to one of the foregoing aspects, wherein the cable chain (70) is provided such that it sags along the second section (B) when the table leg (1) is lowered, so that sufficient length is provided for raising the table leg (1). 63 Table leg (1) according to one of the foregoing aspects, wherein the cable chain (70) is provided such that it sags along the second section (B) in the shape of a 'U' or a horizontal 'S'. 64 Table leg (1) according to one of the foregoing aspects, wherein the cable chain (70) is provided such that the second section (B) sags in a serpentine manner.65 Table leg (1) according to any of the foregoing aspects, wherein the second section (B) runs along the extendable part (3) and / or on the extendable part (3), preferably to approximately the end of this extendable part (3). 66 Table leg (1) according to any of the foregoing aspects, wherein the second section (B) runs substantially straight along the extendable part (3) and preferably does not sag noticeably. 67 Table leg (1) according to any of the foregoing aspects, wherein the cable chain (70) is provided such that one end of the second section (B) runs in a substantially horizontal cable channel (K), which is preferably provided under a tabletop. 68 Table leg (1) according to any of the foregoing aspects, wherein the cable guide (1) is formed by a continuous cable chain (70).69 Table leg (1) according to any of the foregoing aspects, wherein the outer bodies of the chain links in the first section (A) and in the second section (B) are identical and / or have the same dimensions. 70 Table leg (1) according to any of the foregoing aspects, wherein the outer bodies of the chain links in the first section (A) and in the third section (C) are identical and / or have the same dimensions. 71 Table leg (1) according to any of the foregoing aspects, wherein the outer bodies of the chain links in the second section (B) and in the third section (C) are identical and / or have the same dimensions. 72 Table leg (1) according to any of the foregoing aspects, wherein the outer bodies of the chain links in the fourth section (D) have different dimensions than the outer bodies of the chain links in the first section (A), in the second section (B) and / or in the third section (C).73 Table leg (1) according to any of the foregoing aspects, wherein the outer bodies of the chain links in the fourth section (D) have a smaller cross-sectional area than the outer bodies of the chain links in the first section (A), in the second section (B) and / or in the third section (C). 74 Table leg (1) according to any of the foregoing aspects, wherein the outer bodies of the chain links in the fourth section (D) are narrower than the outer bodies of the chain links in the first section (A), in the second section (B) and / or in the third section (C). 75 Table leg (1) according to any of the foregoing aspects, wherein the outer bodies of the chain links forming the first section (A), the second section (B) and / or the third section (C) are oval or rectangular.76 Table leg (1) according to one of the foregoing aspects, wherein the sheath bodies forming the first section (A), the second section (B) and / or the third section (C) are provided such that a longer dimension of the sheath bodies, which they have transverse to the longitudinal direction of the cable chain, extends substantially in the direction of the third coordinate axis (Z). 77 Table leg (1) according to one of the foregoing aspects, wherein the pivotability of the chain links of the second section (B), the third section (C) and / or the fourth section (D) about the first and / or the second axis of rotation is limited to a maximum deflection angle of 50°, 40° or 30° with respect to the longitudinal axis of the adjacent chain link of the respective section (A, B, C).78 Table leg (1) according to one of the foregoing aspects, wherein the pivotability of the second section (B), the third section (C) and / or the fourth section (D) about the first and / or the second axis of rotation is limited such that bending of the guided cables with a radius of curvature of less than 8 cm, less than 5 cm, less than 3 cm, less than 1 cm or less than 0.5 cm is blocked. 79 Adapter (300) for connecting two cable chains (70, 80), comprising: a first connecting section (301) configured for attaching a first cable chain (70) to the adapter (300); and a second connecting section (302) configured for attaching a second cable chain (80) to the adapter (300).80 Adapters (300) according to aspect 79, wherein the first connecting section (301) is configured such that a first type of cable chain can be coupled to it, and the second connecting section (302) is configured such that a second type of cable chain, which differs from the first type, can be coupled to it. 81 Adapters (300) according to aspect 79 or 80, wherein the second cable chain (80) can be attached to the adapter at a 90° angle to the first cable chain (70).82 Adapters (300) according to aspect 79, 80 or 81, wherein the chain links forming the first cable chain (70) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections of the first cable chain (70) are designed such that adjacent chain links are pivotable relative to each other about a first axis of rotation that is perpendicular to the longitudinal axis of the first cable chain (70) and / or perpendicular to the longitudinal axis of the respective chain links. 83 Adapters (300) according to any one of aspects 79 to 82, wherein the chain links forming the first cable chain (70) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the first cable chain (70) are designed such that adjacent chain links can only be pivoted about the first axis of rotation.84 Adapter (300) according to one of aspects 79 to 83, wherein the first cable chain (70) is designed such that, when pivoted about an axis of rotation perpendicular to the longitudinal axis of the cable chain and / or to the longitudinal axis of the respective chain links (i.e., in particular, the first axis of rotation), adjacent chain links can be pivoted in a first direction of rotation (positive or negative direction of rotation) about the first axis of rotation by an angle of at least 10°, at least 20°, at least 30°, or at least 40° relative to each other. 85 Adapter (300) according to aspect 84, wherein, when pivoted about this axis of rotation in the opposite direction of rotation (negative or positive direction of rotation), adjacent chain links can be pivoted at most by an angle of 2°, 5°, or 10° relative to each other, or cannot be pivoted at all relative to each other in this direction of rotation.86 Adapter (300) according to any one of aspects 79 to 85, wherein the first cable chain (70) is provided on the adapter (300) such that the first axis of rotation is substantially horizontal. 87 Adapter (300) according to any one of aspects 79 to 86, wherein the first cable chain (70) is not longitudinally compressible. 88 Adapter (300) according to any one of aspects 79 to 87, wherein the chain links forming the second cable chain (80) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections of the second cable chain (80) are designed such that adjacent chain links are pivotable relative to each other about a first axis of rotation that is perpendicular to the longitudinal axis of the second cable chain (80) and / or perpendicular to the longitudinal axis of the respective chain links.89 Adapter (300) according to any one of aspects 79 to 88, wherein the chain links forming the second cable chain (80) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections along the second cable chain (80) are designed such that adjacent chain links can only be pivoted about the first axis of rotation. 90 Adapter (300) according to any one of aspects 79 to 89, wherein the second cable chain (80) is designed to be non-compressible or compressible in the longitudinal direction. 91 Adapter (300) according to aspect 89 or 90, wherein the adapter (300) is designed such that the first axis of rotation of the second cable chain (80) is arranged substantially perpendicular to the first axis of rotation of the first cable chain (70) when the first and the second cable chains (70, 80) are attached to the adapter (300).92 Adapters (300) according to aspect 89, 90 or 91, wherein the second cable chain (80) is provided on the adapter (300) such that the first axis of rotation is substantially vertical (e.g. along the entire section) or at least vertical along a part of the fourth section (D). 93 Adapters (300) according to any one of aspects 89 to 92, wherein the chain links forming the second cable chain (80) each have one or more connecting bodies and one or more receptacles for the connecting bodies of an adjacent chain link, and wherein the connections of the second cable chain (80) are designed such that adjacent chain links are pivotable relative to each other about a second axis of rotation that is perpendicular to the longitudinal axis of the second cable chain (80) and / or perpendicular to the longitudinal axis of the respective chain links.94 Adapter (300) according to aspect 93, wherein the second axis of rotation of the chain links of the second cable chain (80) is perpendicular to the first axis of rotation of the chain links of the second cable chain (80). 95 Adapter (300) according to any one of aspects 79 to 94, wherein the first cable chain (70) and the second cable chain (80) are formed by different sections (B, D) of a cable chain, in particular the first cable chain (70) by a section having the properties of the second section (B) and the second cable chain (80) by a section having the properties of the fourth section (D) according to any one of the preceding aspects. 96 Set comprising an adapter (300) according to any one of aspects 79 to 95 and two cable chains (70, 80) and / or cable chain sections (B, D) attachable thereto, having properties according to any one of the preceding aspects. 97 Table comprising a table leg (1) according to any one of the preceding aspects. 98 Table according to aspect 97, wherein the table is height-adjustable.99 Table according to aspect 97 or 98, wherein the second section (B) is fixed to a tabletop, in particular at its end. 100 Table according to aspect 97, 98 or 99, wherein the second section (B) and / or the fourth section (D) is contained in a cable duct (K). 101 Table according to any one of aspects 97 to 100, wherein the cable duct is provided under the tabletop. 102 Table according to any one of aspects 97 to 101, wherein the second section (B) is inserted and / or retracted into the cable duct when the table leg is lowered. 103 Table according to any one of aspects 97 to 102, wherein locking devices are provided along the second section (B) such that the second section (B) is inserted into the cable duct (K) only in the desired direction. 104 Table according to one of aspects 97 to 103, wherein the second section (B) is retracted into the cable channel when the table leg is lowered by means of a spring mechanism provided under the table top.105 Table according to one of aspects 97 to 104, wherein an adapter (300) according to one of aspects 79 to 95 is provided under the tabletop and / or in the cable duct, connecting the second section (B) and the fourth section (D). 106 Cable chain (70) with a first section (A) and a second section (B) having the properties according to one of the preceding aspects. 107 Cable chain (70) with a first section (A) and a third section (C) having the properties according to one of the preceding aspects. 108 Cable chain (70) with a second section (B) and a third section (C) having the properties according to one of the preceding aspects. 109 Cable chain with a first section (A), a second section (B), and a third section (C) having the properties according to one of the preceding aspects. 110 Cable chain according to one of the preceding aspects, further comprising a fourth section (D) having the properties according to one of the preceding aspects.111 Cable chain (70) with a second section (B) and a fourth section (D) having the properties according to one of the preceding aspects. 112 Table frame comprising: at least one height-adjustable table leg; a cable chain for guiding cables, wherein a section of the cable chain extends along the table leg. 113 Table frame according to aspect 112, further comprising at least one fastening device that secures a first end of the section. 114 Table frame according to aspect 112 or 113, further comprising a retraction space for the cable chain. 115 Table frame according to aspect 114, further comprising a deflection device that deflects the cable chain and guides it into the retraction space (inner and / or outer bracket). 116 Table frame according to aspect 112, 113 or 114, further comprising a retraction device that applies tension to and / or tightens the section of the cable chain. 117 Table frame according to aspect 112 to 116, wherein the table leg has a fixed part and an extendable part.118 Table frame according to aspect 117, wherein the fixed part is formed by the outer part of a telescopic leg. 119 Table frame according to aspect 117, wherein the fixed part is formed by the inner part of a telescopic leg. 120 Table frame according to any one of aspects 112 to 119, wherein the section of the cable chain is guided vertically along the table leg. 121 Table frame according to any one of aspects 112 to 120, wherein the section of the cable chain extends vertically along the table leg. 122 Table frame according to any one of aspects 112 to 121, wherein adjacent links of the section of the cable chain are pivotable relative to each other about at least one axis of rotation, the axis of rotation preferably being substantially horizontal. 123 Table frame according to any one of aspects 112 to 122, wherein the cable chain is deformable along the section in a vertical plane.124 Table frame according to one of aspects 112 to 123, wherein the section of the cable chain has the features of the second section (B) according to one of aspects 20 to 35. 125 Table frame according to one of aspects 112 to 124, wherein the cable chain has a further section with the features according to one of aspects 12 to 19 (first section A). 126 Table frame according to one of aspects 112 to 125, wherein the cable chain has a further section with the features according to one of aspects 36 to 48 (third section C), wherein this section is preferably not subjected to tensile stress by the retraction device. 127 Table frame according to one of aspects 112 to 126, wherein the cable chain has a further section with the features according to one of aspects 49 to 59 (fourth section D), wherein this section is preferably not subjected to tensile stress by the retraction device.128 Table frame according to aspect 127, wherein the further section (fourth section D) is arranged at least partially in the intake space in the form of a helix and / or rotated about the longitudinal axis of the further section (fourth section D). 129 Table frame according to aspect 127 or 128, wherein an adapter according to the invention is provided between the sections. 130 Table frame according to aspect 129, wherein the adapter is designed as a slide or is mounted on a slide. 131 Table frame according to one of aspects 112 to 130, wherein the cable chain rests against the table leg in the area of ​​the stationary part or is spaced at most 0.5 cm, at most 1 cm, at most 2 cm or at most 5 cm away from the table leg. 132 Table frame according to one of aspects 112 to 131, wherein the cable chain in the area of ​​the fixed part and / or the extendable part is spaced so far away from the table leg that the lowering of the table leg is not disturbed.133 Table frame according to one of aspects 112 to 132, wherein the cable chain is spaced at least 0.5 cm, at least 1 cm, at least 2 cm, at least 3 cm, or at least 5 cm away from the table leg in the area of ​​the fixed part and / or the extendable part. 134 Table frame according to one of aspects 112 to 133, wherein the fastening device absorbs the tensile force of the retraction device and / or serves as a counter bearing. 135 Table frame according to one of aspects 112 to 134, wherein the cable chain is fixed to the table frame via the fastening device. 136 Table frame according to one of aspects 112 to 135, wherein the cable chain is attached to the table leg and / or to the crossbars at the base of the table leg via the fastening device. 137 Table frame according to one of aspects 112 to 136, wherein the table frame comprises exactly one or more fastening devices.138 Table frame according to aspect 137, wherein the one or more fastening devices are provided on the fixed part, particularly when this is formed by the outer part of a telescopic leg. 139 Table frame according to aspect 137, wherein the one or more fastening devices are provided at the base of the table leg and / or near the floor, particularly when the fixed part is formed by the inner part of a telescopic leg. 140 Table frame according to any one of aspects 112 to 139, wherein the table frame comprises a continuous profile. 141 Table frame according to any one of aspects 112 to 140, wherein the fastening device is designed as a continuous profile in which cables can be guided. 142 Table frame according to aspect 140, wherein the profile is rigid.143 Table frame according to aspect 140 or 142, wherein the section of the cable chain is directly connected to the profile, in particular wherein the last chain link of the section is directly connected to the profile (e.g. screwed to the profile or attached to it via a snap-fit ​​device). 144 Table frame according to aspect 140, 142 or 143, wherein the cables which are guided along the section can be continued in the profile (preferably such that the profile conceals the guided cables). 145 Table frame according to any one of aspects 140 to 144, wherein the profile has the same external dimensions and / or the same external shape as the chain links of the section of the cable chain. 146 Table frame according to any one of aspects 140 to 145, wherein the profile has the same external dimensions and / or the same external shape as the chain links of another section of the cable chain (e.g. like the first section A and / or the third section C).147 Table frame according to any one of aspects 140 to 146, wherein the profile is provided and / or attached along the fixed part of the table leg. 148 Table frame according to any one of aspects 140 to 147, wherein the profile extends substantially along the entire fixed part of the table leg. 149 Table frame according to any one of aspects 140 to 148, wherein the profile is fixed at least two points or at exactly two points on the table frame (preferably on the fixed part of the table leg). 150 Table frame according to any one of aspects 112 to 149, wherein the fastening device is attached to the table leg by means of one or more fixing devices. 151 Table frame according to aspect 150, wherein the fixing device comprises a clamp, a snap device, a screw, a magnet, a hook and loop fastener and / or a fastening strap (e.g. a fastening strap with a buckle, buttons and / or a hook and loop fastener).152 Table frame according to aspect 150 or 151, wherein the fixing device is formed on the fastening device (e.g., integrally with it) or on the table frame. 153 Table frame according to one of aspects 112 to 152, wherein the fastening device is glued to the table leg or to the crossbars at the base of the table leg. 154 Table frame according to one of aspects 112 to 153, wherein the fastening device is designed as an angle bracket that is attached under the table leg or one of the crossbars at the base of the table leg, for example, by means of a snap-fit ​​device. 155 Table frame according to one of aspects 112 to 154, wherein the table leg rests on the fastening device. 156 Table frame according to one of aspects 112 to 155, wherein strain relief is provided in the area of ​​the fastening device.157 Table frame according to any one of aspects 112 to 156, wherein the fastening device has a strain relief for the cable chain or is designed as such a strain relief. 158 Table frame according to any one of aspects 112 to 157, wherein the intake space is provided such that, when a tabletop is mounted on the table frame, it runs under the tabletop and / or parallel to it. 159 Table frame according to any one of aspects 112 to 158, wherein the intake space runs horizontally. 160 Table frame according to any one of aspects 112 to 159, wherein the intake space is a cavity arranged in or under the tabletop. 161 Table frame according to any one of aspects 112 to 160, wherein the intake space is a cable duct. 162 Table frame according to any one of aspects 112 to 161, wherein the intake space is formed by the space between two tabletops.163 Table frame according to one of aspects 112 to 162, wherein the intake space forms an intake plane movable with the table frame, which is preferably horizontal, and wherein the cable chain is drawn into the intake space in this intake plane. 164 Table frame according to one of aspects 112 to 163, wherein the section of the cable chain runs vertically along the table leg and is deflected at the deflection device so that it is subsequently inserted horizontally into the intake space. 165 Table frame according to one of aspects 112 to 164, wherein the section of the cable chain is deflected at the deflection device by 70° to 110°, 80° to 100° or approximately 90°. 166 Table frame according to one of aspects 112 to 165, wherein the deflection device has lateral guide elements.167 Table frame according to one of aspects 112 to 166, wherein the retraction device permanently tensions and / or pre-tensions the cable chain, preferably independently of any adjustment of the table height. 168 Table frame according to one of aspects 112 to 167, wherein the retraction device is designed and / or provided such that the cable chain is held along the table leg in a desired operating position, preferably perpendicular or vertical. 169 Table frame according to one of aspects 112 to 168, wherein the retraction device is designed and / or provided such that the section of the cable chain does not bulge and / or kink when the table leg is raised or lowered. 170 Table frame according to one of aspects 112 to 169, wherein the retraction device draws the cable chain into the retraction space when the table is lowered.171 Table frame according to one of aspects 112 to 170, wherein the retraction device engages at a second end of the section opposite the first end, the section between the first and second ends preferably having at least 5 or at least 10 chain links. 172 Table frame according to one of aspects 112 to 171, wherein the retraction device is provided in the retraction space, for example in the cable duct or between the upper and lower parts of a double-walled tabletop. 173 Table frame according to one of aspects 112 to 172, wherein the retraction device is provided below the retraction space. 174 Table frame according to one of aspects 112 to 173, wherein the retraction device retracts the cable chain into the retraction space. 175 Table frame according to one of aspects 112 to 174, wherein the retraction device has a traction element which is fixed on one side to the section of the cable chain (preferably at its second end) and on the other side to the table frame.176 Table frame according to one of aspects 112 to 175, wherein the traction element comprises one or more spring elements which are deflected when the table is raised. 177 Table frame according to one of aspects 112 to 176, wherein the traction element comprises one or more helical or spiral springs. 178 Table frame according to one of aspects 112 to 177, wherein the traction element comprises a rubber band. 179 Table frame according to one of aspects 112 to 178, wherein the traction element comprises a length of rope coupled to a spring (helical spring and / or spiral spring). 180 Table frame according to aspect 179, wherein the length of rope is wound up by means of a spiral spring. 181 Table frame according to one of aspects 112 to 180, wherein the retraction device comprises a motor. 182 Table frame according to one of aspects 112 to 181, wherein the insertion device is coupled with the mechanics of the table frame.183 Table frame according to any one of aspects 112 to 182, wherein the pulling device comprises a rope section or wire coupled to the table frame (in particular to the table frame's height adjustment mechanism). 184 Table frame according to any one of aspects 112 to 183, wherein the rope section comprises a spring element by means of which a pretension force is exerted on the section of the cable chain and / or by means of which tolerances can be compensated. 185 Table frame according to any one of aspects 112 to 184, wherein the pulling device loads the cable chain with a tensile force of 10 N, 20 N, 30 N, 50 N, 100 N or 150 N (approximately 1 kg, 2 kg, 3 kg, 5 kg, 10 kg or 15 kg tensile force). 186 Table with a table frame or with a table leg according to any one of the preceding aspects. Where the preceding description uses the term "essentially," it also includes embodiments in which the respective feature is fully or completely present. The words "multiple" or "several" are to be understood as "at least two," i.e., two or more. Where specific values ​​are given, these preferably also include minor deviations from these values, such as deviations of + / - 10% or + / - 5% of the respective value. Individual aspects of the invention may constitute independent inventions and may also be claimed as such.If, within the scope of the present invention, a blocking and / or prevention of movement is mentioned, it will be understandable to the person skilled in the art that even a very slight residual movement between two cable chain links, which may result, for example, from the deformation of the material of these chain links and / or the locking element, can be understood as such a prevention and / or blocking of movement.

Claims

A table leg (1) or table frame comprising: a continuous cable guide (10, 100) with a cable chain (70) for guiding cables along the table leg (1) or table frame, which is formed by a plurality of interconnected chain links; wherein the cable chain (70) has a first section (A) and a second section (B); and wherein the table leg (1) or table frame is height-adjustable; and characterized in that the cable chain (70) can be deformed along the second section (B) by at least one more degree of freedom or by one rotational degree of freedom in a direction of rotation than along the first section (A); and that the cable chain (70) is provided such that it sags along the second section (B) when the table leg (1) or table frame is in the lowered state, providing sufficient length for extending the table leg (1) or table frame. Table leg (1) or table frame according to claim 1, wherein the table leg (1) or table frame has a fixed or stationary part (2) and an extendable part (3). Table leg (1) or table frame according to one of the preceding claims, wherein the chain links in the first section (A) are rigidly connected to each other. Table leg (1) or table frame according to one of the preceding claims, wherein the chain links in the first section (A) are connected to each other via a rigid connecting rod (30). Table leg (1) or table frame according to one of the preceding claims, wherein the cable chain (70) is provided such that it hangs along the second section (B) in the form of a ‘U’ or a lying ‘S’ or in a serpentine manner. Table leg (1) or table frame according to one of the preceding claims, wherein the chain links along the second section (B) are designed such that the cable chain (70) can bend towards the table leg (1) or table frame. Table leg (1) or table frame according to one of the preceding claims, wherein the cable chain is attached to a fastening device on the table frame, table leg (1), and / or foot of the table leg. Table leg (1) or table frame according to one of the preceding claims, wherein the first section (A) is attached to the table leg (1) at least two points, preferably by means of a fastening strap, one or more magnets, a clamp, a snap device, an adhesive tape and / or a Velcro dot.

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