Search

EP-4637477-B1 - POWER SUPPLY DEVICE FOR SUPPLYING POWER TO A PULL-OUT ELEMENT

EP4637477B1EP 4637477 B1EP4637477 B1EP 4637477B1EP-4637477-B1

Inventors

  • BENEDIKT, Markus
  • BRUGGER, Jonas

Dates

Publication Date
20260513
Application Date
20240220

Claims (13)

  1. A power supply device (1) for supplying power to at least one pull-out element (2, 3), preferably a drawer or a tray, comprising - at least one pull-out guide (4) for movable mounting of the pull-out element (2, 3) on a furniture body (5), wherein the pull-out guide (4) has a body rail (6) to be installed on the furniture body (5) and a drawer rail (7) to be connected to the pull-out element (2, 3), wherein the body rail (6) and the drawer rail (7) are mounted so as to be movable relative to one another, preferably wherein at least one central rail (8) is arranged between the body rail (6) and the drawer rail (7), - at least one power outlet device (9, 10, 11), preferably an outlet, to be connected to the pull-out element (2, 3), and - at least one cable guide (12), which is preferably to be connected to the pull-out guide (4) and is designed to guide at least one power cable (13) to the power outlet device (9, 10, 11), characterized in that at least one current conducting device (27) is provided which is designed to be fastened to and/or in an opening (28) in a base (29) of the pull-out element (2, 3) which is horizontally aligned in the position of use of the pull-out element (2, 3) and to conduct current through the base opening (28) to the power outlet device (9, 10, 11), wherein the current conducting device (27) has at least one holder (46, 47) to be connected, preferably screwed, to an underside (45) of the base (29) of the pull-out element (2, 3) and a bridging device (48, 49, 50) to be arranged in the base opening (28), wherein a distance (51) of an upper side (52) of the bridging device (48, 49, 50) relative to the holder (46, 47) is adjustable in order to adapt the current conducting device (27) to different thicknesses of the base (29) of the pull-out element (2, 3), preferably between 5 mm and 30 mm.
  2. The power supply device (1) of claim 1, wherein the current conducting device (27) has at least one connection point (38) for at least one power cable (13) and/or at least one drag chain (33), preferably wherein the at least one connection point (38) comprises at least one plug-in connection (39) and/or is arranged in a plane parallel to the base (29) of the pull-out element (2, 3).
  3. The power supply device (1) of claim 2, wherein at least one adjustment device (40, 41) is provided, with which a position of the connection point (38) relative to a basic body (42, 43) of the current conducting device (27) and/or a distance (44) of the connection point (38) relative to an underside (45) of the base (29) of the pull-out element (2, 3) can be adjusted.
  4. The power supply device (1) of any one of claims 1 to 3, wherein the bridging device (48, 49, 50) - has at least one cylindrical body with an external thread (53) on which the holder (46) designed as a rotating part with an internal thread is rotatably mounted, and/or - is movably mounted in and/or on the holder (47).
  5. The power supply device (1) of any one of claims 1 to 4, wherein at least one adjusting device (54) is provided, with which a position of the bridging device (50) relative to the holder (47) can be adjusted.
  6. The power supply device (1) of any one of claims 1 to 5, wherein a counter-holder (56) to be connected to an upper side (55) of the base (29) of the pull-out element (2, 3) is or can be arranged on the upper side (52) of the bridging device (49).
  7. The power supply device (1) of any one of claims 1 to 6, wherein the current conducting device (27) has at least one plug-in device (57), by means of which the power outlet device (9, 10, 11) can be brought into electrically conductive contact with the current conducting device (27), preferably wherein the plug-in device (57) projects out of the base opening (28) via the upper side (55) of the base (29) of the pull-out element (2, 3) in the installed position of the current conducting device (27).
  8. The power supply device (1) of any one of claims 1 to 7, wherein the pull-out guide (4) or the pull-out element (2, 3) can be or is connected to at least one drive device (14), with which the drawer rail (7) or the pull-out element (2, 3) to be connected thereto can be driven relative to the body rail (6), and the power supply device (1) has at least one driver (15) which can be releasably fastened to the pull-out guide (4) via at least one interface (16) and is designed to cooperate with the drive device (14) in order to transmit a force from the drive device (14) to one of the rails of the pull-out guide (4) or the pull-out element (2, 3), wherein the cable guide (12) and the driver (15) form a common structural unit which can be releasably fastened to the pull-out guide (4).
  9. The power supply device (1) of any one of claims 1 to 8, wherein at least one holding device (30, 31) is provided which is designed to hold the power outlet device (9, 10, 11) on and/or in and/or above an opening (28) in a base (29) of the pull-out element (2, 3), which is horizontally aligned in the position of use of the pull-out element (2, 3).
  10. The power supply device (1) of claim 9, wherein the at least one holding device (30) is or can be arranged on the current conducting device (27), preferably wherein the holding device (30) is movably arranged on the current conducting device (27) .
  11. The power supply device (1) of any one of claims 1 to 10, wherein the power supply device (1) further comprises - at least one cable holder (32) which can be releasably and/or frontally connected to the body rail (6), and/or - at least one drag chain (33) which is designed to guide the at least one power cable (13) during a movement of the pull-out element (2, 3) between a closed position and an open position in a plane below the pull-out element (2, 3), and/or - at least one stationary plug-in device (34), preferably arranged on the body 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 switch-off device which has at least one sensor for detecting a closed position of the pull-out guide (4) or of the pull-out element (2, 3) and at least one switching element with which the power supply can be interrupted depending on a signal from the sensor.
  12. An arrangement (36) having at least one pull-out element (2, 3), preferably a drawer or a tray, and at least one power supply device (1) of any one of claims 1 to 11, wherein the pull-out element (2, 3) is connected in a position of use, preferably on a longitudinal side (37), to the drawer rail (7) of the at least one pull-out guide (4), wherein the pull-out element (2, 3) has at least one base (29) which is aligned horizontally in the position of use of the pull-out element (2, 3) and in which at least one, preferably cylindrical, opening (28) is formed, wherein the at least one current conducting device (27) is fastened on and/or in the base opening (28) to conduct current through the base opening (28) to the power outlet device (9, 10, 11).
  13. A method for installing at least one arrangement (36) according to claim 12, on at least one furniture body (5), wherein the method comprises the following method steps, preferably in the specified chronological order: - installing the at least one pull-out guide (4) on the furniture body (5) by means of the body rail (6), - attaching the at least one current conducting device (27) to and/or in the base opening (28), - connecting the at least one power outlet device (9, 10, 11) to the pull-out element (2, 3), and - connecting the at least one pull-out element (2, 3) to the drawer rail (7) of the pull-out guide (4).

Description

The invention relates to a power supply device according to the preamble of claim 1, an arrangement with at least one pull-out element, preferably a drawer or a shelf, and at least one such power supply device, as well as a method for mounting such an arrangement on at least one furniture body. The US 2022/216012 A1 reveals a power supply device for the drawer. The WO 2022/051786 A1 discloses a power supply device for extendable elements. This solution involves integrating a power outlet into the back panel of the drawer. This has several disadvantages: firstly, the drawer unit must always have a back panel, which limits its design. Secondly, the current needs to be routed to the outlet via a technically complex redirection device. This device also complicates drawer installation, as it requires work behind the drawer's back panel. Finally, both the redirection device and the outlet occupy space between the drawer's back panel and a wall of the cabinet facing the drawer, resulting in a shorter overall drawer length. The object of the present invention is to at least partially overcome the disadvantages known from the prior art and to provide a power supply device that is improved compared to the prior art, which In particular, a space-saving and flexible design of the pull-out element, combined with simplified assembly, is to be specified. Furthermore, an arrangement with at least one pull-out element and at least one such improved power supply device, as well as a method for mounting such an arrangement on at least one furniture carcass, are to be provided. This problem is solved by the features of claims 1, 12 and 13. Accordingly, the power supply device comprises at least one current-conducting device which is designed to be attached to and/or in an opening in a base of the extension element which is horizontally oriented in the operating position of the extension element and to conduct current through the base opening to the current extraction device. This makes it possible to dispense with the known current deflection device and to arrange at least one current extraction device independently of a rear wall, e.g., in the base of the pull-out element and/or above the base. The design of the pull-out element is thus practically unrestricted. Only a base is required. Furthermore, the current-conducting device facilitates the assembly of the pull-out element, as it is easier for an installer to carry out assembly steps above or below the base of the pull-out element than behind the back panel. The arrangement according to the invention, comprising at least one pull-out element, preferably a drawer or a shelf, includes at least one power supply device according to the invention, wherein the pull-out element is connected in a use position, preferably on a longitudinal side, to the drawer rail of the at least one pull-out guide, wherein the pull-out element has at least one base that is horizontally oriented in the use position of the pull-out element, in which at least one, preferably cylindrical, opening is formed, wherein the at least one current-conducting device is attached to and/or in the base opening in order to conduct current through the base opening to the current-extracting device. The inventive method for mounting at least one inventive arrangement on at least one furniture carcass comprises the following process steps, preferably in the specified chronological order: the at least one extension guide is mounted on the furniture carcass via the carcass rail, the at least one current conducting device is attached to and/or in the bottom opening, the at least one current extraction device is connected to the extension element, and the at least one extension element is connected to the drawer rail of the extension guide. Preferred embodiments are defined in the dependent claims. Further details and advantages of the invention are explained in more detail below with reference to the figures and the drawings. These show: Fig. 1, 2 a first embodiment of an arrangement with a shelf and a power supply device according to a first embodiment in a perspective view, wherein in Fig. 2 the power extraction device is disassembled, Fig. 3, 4 the in the Figs. 1 and 2 configuration shown without floor ( Fig. 3 ), where section 87 is shown enlarged, and from the underside ( Fig. 4 ), Fig. 5 the first embodiment of the power supply device in an exploded view, Fig. 6 the combined assembly of cable guide and drive unit in a top view, Fig. 7 a drive device in a highly simplified schematic representation, Fig. 8, 9 a second embodiment of a current-conducting device in a perspective view ( Fig. 8 ) and in an exploded view ( Fig. 9 ), Figs. 10, 11 the current-conducting device according to the first embodiment in the assembled state on a floor with a first thickness in a cross-sectional view ( Fig. 10 ) and in a perspective view ( Fig. 11 ), Figs. 12, 13 the current-conducting device according to the first embodiment in th