Power supply device for supplying power to the draw-out element
The power supply device positions power take-off mechanisms on the drawer bottom, addressing configuration limitations and assembly challenges of existing systems, enhancing flexibility and ease of assembly.
Patent Information
- Application Number
- JP2025549544
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-02-24
- Filing Date
- 2024-02-20
- Publication Date
- 2026-02-13
AI Technical Summary
Existing power supply devices for drawer elements require a back wall, which limits configuration flexibility, necessitate complex transformer routing, and occupy valuable space, making assembly difficult.
A power supply device with a holding device that positions the power take-off mechanism independently of the back wall, allowing it to be located on the bottom of the drawer, simplifying assembly and eliminating the need for transformer routing.
Enables flexible drawer configurations without space constraints and facilitates easy assembly by allowing power take-off devices to be positioned on the drawer bottom, reducing assembly complexity and space requirements.
Smart Images
Figure 2026505557000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a power supply device of the type defined in the preamble of claim 1, an assembly comprising at least one drawer element, preferably a drawer or tray, and at least one such power supply device, as well as a method for assembling such an assembly in at least one furniture cabinet.
[0002] WO 2022 / 051786 discloses a power supply device for a drawer element.
[0003] In this solution, the power outlet is located on the back wall of the drawer. This has several disadvantages: First, the drawer element must always have a back wall, which limits the configuration of the drawer element. Furthermore, the power must be routed to the power outlet by a transformer, which is technically complex. At the same time, the transformer makes assembly of the drawer difficult, since it requires an assembly step that takes place behind the back wall of the drawer. And finally, both the transformer and the power outlet require construction space between the back wall of the drawer and the wall of the furniture cabinet facing the drawer, which shortens the nominal length available for the drawer.
[0004] The object of the present invention is to provide an improved power supply device with respect to the prior art, which at least partially overcomes the drawbacks known from the prior art, in particular by allowing a space-saving and at the same time flexible construction type of the drawer elements and which can be easily assembled. Furthermore, it is desirable to provide an assembly comprising at least one drawer element and at least one such improved power supply device, as well as a method for assembling such an assembly into at least one furniture cabinet.
[0005] This problem is solved by the features of claims 1, 13 and 15.
[0006] The power supply device therefore has at least one holding device which is configured to hold the power take-off device against and / or within and / or above an opening provided in the bottom of the drawer element which is oriented horizontally in the use position of the drawer element.
[0007] This makes it possible to dispense with a power redirection device known from the prior art and to arrange the at least one power take-off device independently of the back wall, for example at and / or above the bottom of the drawer element, which effectively does not impose any restrictions on the configuration of the drawer element; it is only necessary that a bottom is provided.
[0008] Furthermore, the at least one holding device facilitates assembly of the drawer element, since it is easier for the installer to perform assembly steps above or below the bottom of the drawer element than behind the back wall.
[0009] An assembly according to the present invention comprising at least one drawer element, preferably a drawer or tray, has at least one power supply device according to the present invention, the drawer element being connected in its use position, preferably in its longitudinal direction, to a drawer rail of at least one drawer guide, the drawer element having at least one bottom oriented horizontally in the use position of the drawer element, in which at least one, preferably cylindrical, opening is formed, and the power take-off device is held against and / or in and / or above the bottom opening by at least one holding device.
[0010] A method according to the invention for assembling at least one assembly according to the invention into at least one furniture cabinet comprises the following method steps, preferably in the chronological order given: assembling at least one drawer guide into the furniture cabinet via the cabinet rails; coupling at least one power take-off device to a drawer element by means of at least one holding device against and / or in and / or above the bottom opening; and coupling at least one drawer element to a drawer rail of the drawer guide.
[0011] Preferred embodiments are defined in the dependent claims.
[0012] Further details and advantages of the invention are explained in more detail below with reference to the drawings and based on the description of the drawings. [Brief explanation of the drawings]
[0013] [Figure 1] 1 is a perspective view of a first embodiment of an assembly including a tray and a power supply device according to the first embodiment; [Figure 2] 1 is a perspective view of a first embodiment of an assembly comprising a tray and a power supply device according to a first embodiment, with the power take-off device removed; FIG. [Figure 3] 3 shows the structure shown in FIGS. 1 and 2 without the bottom and with section 87 enlarged. FIG. [Figure 4] FIG. 3 is a bottom view of the structure shown in FIGS. 1 and 2. [Figure 5] FIG. 1 is an exploded view showing a first embodiment of a power supply device. [Figure 6] 1 is a plan view from above showing a common structural unit consisting of a cable guide and a follower; [Figure 7] 1 is a highly simplified schematic diagram of a drive device; [Figure 8] FIG. 10 is a perspective view showing a second embodiment of a conductive device. [Figure 9] FIG. 10 is an exploded view showing a second embodiment of a conductive device. [Figure 10] 1 is a cross-sectional view of a conductive device according to a first embodiment, shown assembled to a bottom part having a first thickness. FIG. [Figure 11] 1 is a perspective view of a conductive device according to a first embodiment, shown assembled to a bottom part having a first thickness; FIG. [Figure 12] 4 is a cross-sectional view of the conductive device according to the first embodiment, shown assembled to a bottom part having a second thickness; FIG. [Figure 13] 1 is a perspective view of the conductive device according to the first embodiment, shown assembled to a bottom part having a second thickness; FIG. [Figure 14] FIG. 10 is a perspective view of a second embodiment of an assembly comprising a drawer and a power supply device according to the second embodiment. [Figure 15] FIG. 10 is an exploded view showing a third embodiment of a conductive device. [Figure 16] 10 is a perspective view of a conductive device according to a second embodiment, shown assembled to a bottom part having a first thickness; FIG. [Figure 17] FIG. 10 shows a conductive device according to a second embodiment without a bottom portion. [Figure 18] 10 is a cross-sectional view of a conductive device according to a second embodiment, shown assembled to a bottom part having a first thickness. FIG. [Figure 19] 10 is another cross-sectional view of the conductive device according to the second embodiment, shown assembled to a base having a first thickness; FIG. [Figure 20] 10 is a perspective view of a conductive device according to a second embodiment, shown assembled to a bottom part having a second thickness; FIG. [Figure 21] FIG. 10 shows a conductive device according to a second embodiment without a bottom portion. [Figure 22] 10 is a cross-sectional view of a conductive device according to a second embodiment, assembled to a bottom portion having a second thickness. FIG. [Figure 23] 10 is another cross-sectional view of the conductive device according to the second embodiment, assembled to a bottom portion having a second thickness. FIG. [Figure 24]10 is another cross-sectional view of the conductive device according to the second embodiment, shown assembled to a bottom part having a first thickness. FIG. [Figure 25] 10 is another cross-sectional view of the conductive device according to the second embodiment, assembled to a bottom portion having a second thickness. FIG. [Figure 26] FIG. 10 is a perspective view showing another embodiment of a power take-off device. [Figure 27] FIG. 10 is an exploded view showing another embodiment of a power take-off device. [Figure 28] FIG. 10 is an exploded view showing another embodiment of a power take-off device as seen from another viewing direction. [Figure 29] FIG. 10 is an exploded view showing another embodiment of a power take-off device as seen from another viewing direction. [Figure 30] FIG. 10 is a perspective view showing another embodiment of a power take-off device. [Figure 31] FIG. 10 is an exploded view showing another embodiment of a power take-off device.
[0014] 1 and 2 show an assembly 36 with at least one drawer element 2, which in the illustrated embodiment is formed as a tray.
[0015] The assembly 36 includes at least one power supply 1, the details of which are shown in Figures 2 to 6 below.
[0016] The power supply device 1 serves to supply power, preferably 230 V, to at least one drawer element 2 and includes at least one drawer guide 4 for movably supporting the drawer element 2 in a furniture cabinet 5, wherein the drawer guide 4 has a cabinet rail 6 to be assembled in the furniture cabinet 5 and a drawer rail 7 to be coupled to the drawer element 2, wherein the cabinet rail 6 and the drawer rail 7 are supported movably relative to each other, and preferably at least one intermediate rail 8 is arranged between the cabinet rail 6 and the drawer rail 7 (see also Figure 5).
[0017] In the use position, the drawer element 2 is preferably connected at its longitudinal faces 37 to the drawer rail 7 of at least one drawer guide 4. In the illustrated embodiment, one drawer guide 4 is arranged on each of the two longitudinal faces 37 of the drawer element 2 which lie opposite each other.
[0018] The power supply device 1 comprises at least one power take-off device 9, preferably a power outlet, which is coupled to the pull-out element 2. To this outlet a consumer device, e.g. a kitchen appliance, a hairdryer or a charging cable, can be connected.
[0019] The drawer element 2 has at least one bottom 29 which is oriented horizontally in the use position of the drawer element 2 and in which at least one, preferably cylindrical, opening 28 is formed.
[0020] In the illustrated embodiment, the at least one power take-off device 9 is located at least partially inside the bottom opening 28, i.e. the power take-off device is a "buried outlet."
[0021] The power take-off device 9 can be supplied with energy as follows.
[0022] At least one electrical conductor 27 is mounted adjacent to and / or within the bottom opening 28 for conducting electrical power from the bottom opening 28 to the power takeoff device 9 .
[0023] The conductive device 27 has at least one holder 46 to be attached to the underside 45 of the bottom 29 of the drawer element 2 and a bridging device 48 to be placed in the bottom opening 28, in which case the spacing 51 of the upper surface of the bridging device 48 relative to the holder 46 can be adjusted to adapt the conductive device 27 to bottoms 29 of drawer elements 2 of different thicknesses, preferably between 5 mm and 30 mm.
[0024] In the illustrated embodiment, the bridging device 48 has at least one cylindrical body with an external thread 53, in which a holder 46 formed as a rotating member with an internal thread is rotatably supported.
[0025] At least one cable guide 12 is provided, which is preferably connected to the draw-out guide 4 and is configured to guide at least one power cable 13 to the power take-off device 9 (see also Figure 6).
[0026] It is conceivable that the cable guide 12 has, as in the illustrated example, at least one groove 25 into which at least one power cable 13 to be guided can be inserted, and at least one deflection device 26 that deflects the at least one power cable 13 to be guided by at least 90°.
[0027] Between the cable guide 12 and the conducting device 27, at least one entraining chain 33 is advantageously arranged, which is configured to guide the at least one power cable 13 in the lower plane of the pull-out element 2 when the latter moves between the closed and open positions. The term "entraining chain" should be broadly interpreted as meaning an energy guide that guides and simultaneously protects flexible cables and / or lines. However, the entraining chain does not necessarily have to consist of chain elements.
[0028] The entraining chain 33 may be connected to the conducting device 27 at a connection point 38 .
[0029] At least one plug-in device 34 may be provided at the station, preferably arranged on the cabinet rail 6, via which the power supply device 1 can be connected to a stationary power source 35. In the example shown, the plug-in device 34 is arranged on the cable guide 12.
[0030] The plug-in device 34 may be an adapter with different specifications for different countries.
[0031] The plug-in device 34 and the stationary power source 35 can be connected via at least one power cable 89, which may have different specifications for different countries (see FIG. 4).
[0032] Furthermore, the power supply device 1 may have at least one cable holder 32 which is detachable and / or connectable at the end to the cabinet rail 6. For this purpose, for example, a plug connection may be provided.
[0033] Alternatively or additionally, the power supply device 1 may have at least one shut-off device, which has at least one sensor for detecting the closed position of the drawer guide 4 or the drawer elements 2, 3 and at least one switching element that can cut off the power supply depending on the sensor signal.
[0034] Preferably, the components of the power supply device 1 can be attached to the drawer guide 4 and / or the drawer elements 2, 3 without tools, thereby providing retrofitting possibilities.
[0035] Another important advantage of the illustrated power supply device 1 is that the components are mostly arranged in a space-saving manner below the bottom 29 of the drawer elements 2, 3, which allows for an inexpensive construction type.
[0036] The cable guide 12 may be attachable to the drawer guide 4 as follows.
[0037] The power supply device 1 may comprise at least one drive 14 to be connected to the drawer guide 4 or drawer element 2, 3, by means of which the drawer rail 7 or the drawer element 2, 3 to be coupled to the drawer rail can be driven relative to the cabinet rail 6, and at least one follower 15 releasably attachable to the drawer guide 4 via at least one interface 16, the follower 15 being configured to cooperate with the drive 14 to transmit the force of the drive 14 to one of the rails of the drawer guide 4 or to the drawer element 2, 3, in which case the cable guide 12 and the follower 15 form a common structural unit releasably attachable to the interface 16 of the drawer guide 4.
[0038] It is conceivable that the interface 16 is arranged on the underside 19 of the cabinet rail 6, which faces downwards in the use position of the drawer guide 4, and / or has at least one locking device 20 and / or suspension device 21 by means of which the common structural unit can be locked and / or suspended on the drawer guide 4.
[0039] In the embodiment shown in Figure 6, a suspension device 21 is provided that can suspend the common structural unit from the cabinet rail 6, and a locking device 20 that can lock this structural unit to the cabinet rail 6 during a rotational movement, preferably around a vertical axis.
[0040] The follower 15 has at least one protruding pin 22 or bolt which can be introduced into an opening 23 in the drive device 14 (see also FIG. 7).
[0041] The common structural unit may include a substantially flat holding metal sheet 24 that is connectable to or connected to the interface 16 of the follower 15, the cable guide 12, and / or the drawer guide 4.
[0042] In this and other illustrated embodiments, the assembly 36 can be assembled to at least one furniture cabinet 5 (shown diagrammatically in FIG. 1 ) as follows: at least one drawer guide 4 is assembled to the furniture cabinet 5 via a cabinet rail 6, preferably to a retaining web 70 of the cabinet rail 6; at least one power take-off device 9, 10, 11 is coupled to a drawer element 2, 3; and at least one drawer element 2, 3 is coupled to a drawer rail 7 of the drawer guide 4.
[0043] Optionally, the following method steps may be provided alone or in combination: releasably attaching at least one follower 15 and at least one cable guide 12 to the interface 16 of the drawer guide 4, connecting at least one drive device 14 to the drawer guide 4 or to the drawer element 2, 3, attaching at least one electrical conductor device 27 against and / or within the bottom opening 28, and / or coupling at least one power take-off device 9, 10, 11 to the drawer element 2, 3 against and / or within and / or above the bottom opening 28 using at least one holding device 30, 31.
[0044] FIG. 7 shows the drive unit 14 in a highly simplified schematic diagram.
[0045] The drive device 14 comprises at least one energy accumulator 17, preferably at least one spring device, and at least one drive element 18 which can be driven by the energy accumulator and which can be connected to the follower 15.
[0046] The drive 14 can be configured as an ejector device for pushing the drawer rail 7 or the drawer element 2, 3 to be connected to the drawer rail 7 relative to the cabinet rail 6 from the closed position towards the open position.
[0047] Alternatively or additionally, the drive device 14 can be configured as a retraction device 71 which cooperates with an actuator 72 .
[0048] In the embodiment shown in Figure 3, both an ejection device 14 and a retraction device 71 are provided, which can be formed modularly or in one common construction unit.
[0049] The cable guide 12 can form a common structural unit together with the follower 15 and / or the actuator 72 .
[0050] 8 to 13 show another embodiment of the conductive device 27. FIG.
[0051] The electrical conducting device 27 has at least one connection point 38 for at least one power cable 13 and / or at least one entraining chain 33, preferably at least one connection point 38 having at least one plug connection 39 and / or arranged in a plane parallel to the bottom 29 of the pull-out element 2, 3.
[0052] The plug-in connection 39 (see FIG. 9) facilitates assembly of the draw-out elements 2, 3, since it allows the draw-out element 2 to be mounted on the draw-out rail 7 before the electrical conductor 27 can be connected to the power cable 13 and / or the entraining chain 33.
[0053] At least one adjustment device 40 is provided that can adjust the position of the connection points 38 relative to the base 42 of the conductive device 27 and / or the spacing 44 of the connection points 38 relative to the underside 45 of the bottom 29 of the pull-out elements 2, 3.
[0054] This has the advantageous technical effect that the conductive device 27 can be adjusted to suit the respective different drawer guides 4. The different drawer guides 4 can differ from one another in their construction height, in particular by the distance between the underside of the cabinet rail 6 and the resting web of the drawer rail 7.
[0055] In the illustrated embodiment, the adjustment device 40 comprises an adjustment screw (see FIG. 9) by which the connection point 38 can be vertically displaced relative to the base 42. To facilitate the adjustment, markings can be provided, for example comprising at least two arrows.
[0056] At least one holding device 30 is provided which is configured to hold the power take-off device 9 against and within an opening 28 provided in the bottom 29 of the drawer element 2, 3, which is oriented horizontally in the use position of the drawer element 2, 3.
[0057] At least one retaining device 30 is arranged or positionable on the conductive device 27, as in the illustrated example, and preferably the retaining device 30 is slidably arranged on the conductive device 27.
[0058] A groove 81 may be provided for slidable support.
[0059] The retaining device 30 can facilitate the assembly of the electrical conductor 27 by retaining the electrical conductor 27 inserted into the bottom opening 28 from above so that it does not slide further downward.
[0060] The holding device 30 comprises at least one holding yoke which is to be connected to the upper surface 55 of the bottom 29 of the drawer element 2, 3, and which can preferably be screwed.
[0061] The holding device 30 is at least partially fork-shaped and at least partially surrounds the bottom opening 28 in the assembled position.
[0062] The power take-off device 9 may be connectable to and / or snap-fittable onto the holding device 30 via at least one locking connection 58 and / or at least one screw connection 59 .
[0063] In the illustrated embodiment, a locking connection 58 is provided which functions between the frame 78 of the power take-off device 9 and the holding device 30. A central body 90, which is arranged inside the frame 78 in the assembled position, can be slipped from above onto the holding device 30 and the bridging device 49 which can be connected to or is connected to this holding device, and can be fixed by means of a snap connection 79.
[0064] The conductive device 27 has at least one holder 47 to be connected, preferably screwed, to the underside 45 of the bottom 29 of the drawer element 2, 3, and a bridging device 49 to be placed in the bottom opening 28, in which case the spacing 51 of the upper surface 52 of the bridging device 49 can be adjusted relative to the holder 47 in order to adapt the conductive device 27 to bottoms 29 of drawer elements 2, 3 of different thicknesses, preferably between 5 mm and 30 mm.
[0065] The bridging device 49 may be slidably supported within and / or against the holder 47. Two different positions of the bridging device 49 relative to the holder 47 are shown in Figures 10 and 12, depending, by way of example, on two different thicknesses 88 of the bottom portion 29.
[0066] To prevent the holder 47, or the base 42 on which the holder 47 is formed, from sliding downwards during assembly, the bridging device 49 can have at least one restraining device 80, for example having a spring-elastic hook.
[0067] On the upper surface 52 of the bridging device 49 there is or can be arranged a counter holder 56 which is to be connected to the upper surface 55 of the bottom 29 of the drawer element 2,3.
[0068] In the illustrated embodiment, the electrical conductor device 27 is fixed to the bottom 29 from below via a holder 47 and from above via a corresponding holder 56, preferably by means of screws.
[0069] For clarity, electrical wiring is not shown in the drawings. Representatively, electrical conductors 83 are shown diagrammatically in Figures 10 and 24, which conductively connect connection points 38 to power take-off devices 9 or plug-in devices 57.
[0070] FIG. 14 shows another embodiment of an assembly 36 with a drawer element 3 formed as a drawer and a power supply device 1 according to another embodiment.
[0071] In the use position, the drawer element 3 is connected, preferably at its longitudinal surface 37 , to the drawer rail 7 of at least one drawer guide 4 .
[0072] The drawer element 3 has at least one back wall 69 oriented substantially perpendicular to the bottom 29. At least one power take-off device 10 or 11 (see Figures 30, 31) is disposed above the bottom opening 28 in a plane parallel to and outside the back wall 69.
[0073] Alternatively or additionally, the draw-out element 3 may also have a power take-off device 9 embedded in the bottom 29, as shown, for example, in the preceding figures.
[0074] The drawer element 3 may have two opposing side walls 76 and a front wall 77 .
[0075] 15 to 25 show other embodiments of the conductive device 27. FIG.
[0076] The electrical conducting device 27 has at least one connection point 38 for at least one power cable 13 and / or at least one entraining chain 33, preferably at least one connection point 38 having at least one plug connection 39 and / or arranged in a plane parallel to the bottom 29 of the pull-out element 2, 3.
[0077] At least one adjustment device 41 is provided that can adjust the position of the connection points 38 relative to the base 43 of the conductive device 27 and / or the spacing 44 of the connection points 38 relative to the underside 45 of the bottom 29 of the pull-out elements 2, 3.
[0078] The adjusting device 41 may, as in the illustrated example, have a locking element 82 supported in a groove 91 on a preferably spring-elastic operating lever 84, which locks into a corresponding recess 92 (see Figures 19 and 23).
[0079] The conductive device 27 has at least one holder 47 to be connected, preferably screwed, to the underside 45 of the bottom 29 of the drawer element 2, 3, and a bridging device 50 to be placed in the bottom opening 28, in which case the spacing 51 of the upper surface 52 of the bridging device 50 can be adjusted relative to the holder 47 in order to adapt the conductive device 27 to bottoms 29 of drawer elements 2, 3 of different thicknesses, preferably 5 mm to 30 mm.
[0080] At least one adjustment device 54 is provided, by which the position of the bridging device 50 can be adjusted relative to the holder 47. The adjustment device 54 may, for example, comprise a rotatably supported worm gear 93 cooperating with a toothing 85 (see Figures 24 and 25).
[0081] The electrical conductor device 27 has at least one plug-in device 57 that allows the power take-off device 10, 11 to be in conductive contact with the electrical conductor device 27, and preferably in this case the plug-in device 57 protrudes from the bottom opening 28 beyond the upper surface 55 of the bottom 29 of the draw-out element 2, 3 in the assembly position of the electrical conductor device 27.
[0082] At least one plug-in device 57 facilitates the assembly and removal of the drawer elements 2,3.
[0083] 26 to 29, 30 and 31 show other embodiments of the power take-off device 11. FIG.
[0084] At least one holding device 31 is provided which is configured to hold the power take-off device 11 in contact with and above an opening 28 provided in the bottom 29 of the draw-out element 2, 3, which is oriented horizontally in the use position of the draw-out element 2, 3.
[0085] The holding device 31 comprises at least one holding yoke, which is to be connected to the upper surface 55 of the bottom 29 of the drawer element 2,3, preferably by screwing.
[0086] The holding device 31 is at least partially fork-shaped and at least partially surrounds the bottom opening 28 in the assembled position.
[0087] The power take-off device 11 can be connected to the holding device 31 via at least one screw connection 59 and can be snapped onto the holding device 31. For this purpose, a guide 94 is arranged on the power take-off device 11, preferably on its rear surface 95.
[0088] The holding device 31 has at least one interface 60 for connection to at least one further holding device 61 for at least one further power take-off device.
[0089] The power take-off device 11 has at least one interface 63, preferably arranged on a side surface 62, for connection to at least one further power take-off device, which preferably differ from one another by the form of power plug receptacles 64, 65, 66 (see FIG. 30), which may for example be USB plug receptacles or 230V plug receptacles customary in German-speaking countries.
[0090] In the embodiment according to FIGS. 30 and 31, a central base module 73 is provided, to which additional modules 74 are attached laterally.
[0091] The interface 63 can be covered by a cover 86 .
[0092] The power take-off device 11 may have at least one interface 75 for assembling a logo plate 68, preferably arranged near the bottom 29 and / or on the end face 67 of the draw-out element 2, 3.
Claims
1. A power supply device (1) for supplying power to at least one drawer element (2, 3), preferably a drawer or a tray, at least one drawer guide (4) for movably supporting said drawer elements (2, 3) in a furniture cabinet (5), said drawer guide (4) having a cabinet rail (6) to be assembled in said furniture cabinet (5) and a drawer rail (7) to be connected to said drawer elements (2, 3), said cabinet rail (6) and said drawer rail (7) being supported movably relative to each other, preferably with at least one intermediate rail (8) arranged between said cabinet rail (6) and said drawer rail (7); at least one power take-off device (9, 10, 11), preferably a socket, to be coupled to said draw-out element (2, 3), and - at least one cable guide (12) to be preferably connected to said draw-out guide (4), said cable guide being adapted to guide at least one power cable (13) to said power take-off device (9, 10, 11); In a power supply device (1) having 1. A power supply device (1), characterized in that at least one holding device (30, 31) is provided, which is configured to hold the power take-off device (9, 10, 11) against and / or in and / or above an opening (28) provided in a bottom (29) of the drawer element (2, 3) oriented horizontally in the use position of the drawer element (2, 3).
2. 2. The power supply device (1) according to claim 1, wherein the holding device (30, 31) comprises at least one holding yoke, preferably screwable, to be connected to the upper surface (55) of the bottom (29) of the drawer element (2, 3).
3. 3. The power supply device (1) according to claim 2, wherein the holding device (30, 31) is at least partially fork-shaped and at least partially surrounds the bottom opening (28) in the assembled position.
4. 4. The power supply device (1) according to claim 1, wherein the power take-off device (9, 10, 11) is connectable to the holding device (30, 31) and / or can be slipped onto the holding device (30, 31) via at least one locking connection (58) and / or at least one screw connection (59).
5. 5. The power supply device (1) according to claim 1, wherein the holding device (31) has at least one interface (60) for connection to at least one other holding device (61) for at least one other power take-off device (9, 10, 11).
6. 6. The power supply device (1) according to claim 1, wherein the power take-off device (9, 10, 11) has at least one interface (63), preferably arranged on a side surface (62), for connection to at least one other power take-off device (9, 10, 11), and wherein the power take-off device (9, 10, 11) and the at least one other power take-off device (9, 10, 11) preferably differ from each other by the form of a power plug receptacle (64, 65, 66).
7. 7. The power supply device (1) according to claim 1, wherein the power take-off device (9, 10, 11) has at least one interface (75) for assembling a logo plate (68), preferably arranged near the bottom (29) of the draw-out element (2, 3) and / or on an end face (67).
8. 8. The power supply device (1) according to claim 1, wherein the drawer guide (4) or the drawer element (2, 3) is connectable or connected to at least one drive device (14), and the drawer rail (7) or the drawer element (2, 3) to be coupled to the drawer rail (7) can be driven relative to the cabinet rail (6) by the drive device, and the power supply device (1) has at least one follower (15) releasably attachable to the drawer guide (4) via at least one interface (16), the at least one follower (15) being configured to cooperate with the drive device (14) to transmit a force of the drive device to one of the rails of the drawer guide (4) or to the drawer element (2, 3), and the cable guide (12) and the follower (15) form a common structural unit releasably attachable to the drawer guide (4).
9. 9. The power supply device (1) according to claim 1, further comprising at least one electrical conductor (27) mounted adjacent to and / or within an opening (28) in a bottom (29) of the drawer element (2, 3) oriented horizontally in the use position of the drawer element (2, 3), and configured to pass electrical power from the bottom opening (28) to the power take-off device (9, 10, 11).
10. The power supply device (1) according to claim 9, wherein the at least one holding device (30) is arranged or can be arranged on the conductive device (27), and preferably the holding device (30) is slidably arranged on the conductive device (27).
11. 11. The power supply device (1) according to claim 9 or 10, wherein the conductive device (27) has at least one plug-in device (57) that can bring the power take-off device (9, 10, 11) into conductive contact with the conductive device (27), and preferably in this case the plug-in device (57) protrudes from the bottom opening (28) beyond the upper surface (55) of the bottom (29) of the draw-out element (2, 3) in the assembly position of the conductive device (27).
12. The power supply device (1) further comprises: - at least one cable holder (32) that is detachable and / or end-connectable to said cabinet rail (6), and / or at least one entraining chain (33) configured to guide the at least one power cable (13) in the lower plane of the pull-out element (2, 3) when the pull-out element (2, 3) moves between the closed and open positions, and / or at least one plug-in device (34) arranged stationarily, preferably on the cabinet rail (6), by means of which the power supply device (1) can be connected to a stationary power source (35); and / or - at least one cut-off device having at least one sensor for detecting the closed position of the drawer guide (4) or the drawer elements (2, 3) and at least one switching element capable of cutting off the power supply depending on the signal of the sensor, A power supply device (1) according to any one of claims 1 to 11.
13. 13. An assembly (36) comprising at least one drawer element (2, 3), preferably a drawer or tray, and at least one power supply device (1) according to any one of claims 1 to 12, wherein the drawer element (2, 3) is connected in its use position, preferably at its longitudinal surface (37), to a drawer rail (7) of at least one drawer guide (4), the drawer element (2, 3) having at least one bottom (29) oriented horizontally in its use position, the bottom having at least one, preferably cylindrical, opening (28), and a power take-off device (9, 10, 11) held against and / or in and / or above the bottom opening (28) by at least one holding device (30, 31).
14. 14. The assembly (36) according to claim 13, wherein the at least one power take-off device (9, 10, 11) is arranged at least partially inside the bottom opening (28), or the draw-out element (2, 3) has at least one back wall (69) oriented substantially vertically with respect to the bottom (29), and the at least one power take-off device (9, 10, 11) is arranged above the bottom opening (28), in a plane parallel to and outside the back wall (69).
15. A method for assembling at least one assembly (36) to at least one furniture cabinet (5) according to claim 13 or 14, said method comprising the following method steps, preferably in the chronological order of the method steps: - assembling at least one drawer guide (4) to said furniture cabinet (5) via cabinet rails (6); - coupling at least one power take-off device (9, 10, 11) to the draw-out element (2, 3) by means of at least one holding device (30, 31) against and / or in and / or above the bottom opening (28), and - coupling at least one of said drawer elements (2, 3) to a drawer rail (7) of said drawer guide (4); A method comprising: