DE102021102667B4 - Pusher element with a lighting device and furniture with such a pusher element - Google Patents

Abstract

Push element, in particular drawer (1), for a piece of furniture with at least one one-part or multi-part wall (2, 3), having at least one lighting device (10), the at least one wall (2, 3) having a connecting element (6), which cooperates with a connecting contour (113) of the lighting device (10) and which is arranged on an upward-facing end face of the at least one wall (2, 3) in order to attach the lighting device to the thrust element, the lighting device (10) having a translucent Has a profile (11) which is made of a plastic and has at least one hollow chamber (111) in which LEDs (141) are arranged, the hollow chamber (111) of the profile (11) being made in one piece and closed in cross section, thereby characterized in that the profile is almost flush with the at least one wall (2, 3) in the longitudinal direction, that the LEDs (141) are arranged on an LED strip (14) which extends from one end face of the profile (11) into the at least a hollow chamber (111) is inserted, and that the translucent profile (11) is at least partially covered by a film arranged on the profile (11) as an opaque cover.

Description

The invention relates to a push element for a piece of furniture with at least one one-piece or multi-part wall according to the preamble of claim 1. The invention further relates to a piece of furniture with such a push element.

Push elements of the type mentioned above are, for example, drawers, often also referred to as drawers or box systems, which usually have side walls, also referred to as side frames, a rear wall and a front wall facing the user, often just called “front”. For more convenient usability, but also for design reasons, configurations are known in which a lighting device is arranged on one of the side, rear or front walls mentioned or in which one of the walls mentioned is formed at least in sections by a translucent element which functions as a lighting device . Within the lighting device, lighting means, in particular LEDs (light-emitting diodes), are arranged in such a way that, on the one hand, the visual appearance of the thrust element itself is enhanced and, on the other hand, the interior of the thrust element is attractively illuminated.

An arrangement of a lighting device in a drawer is, for example, from the publication DE 20 2009 000 472 U1 known. The document describes the irradiation of light into a transparent side wall by a lighting device which is arranged along an upper narrow surface of the side wall of a drawer. When irradiation occurs along the upper horizontal narrow surfaces into a partially transparent wall element, this narrow surface itself is therefore covered by the lighting device and does not represent an optically effective light exit surface. In addition, the at least partially translucent side wall is more complex in its structure than one conventionally made from non-transparent materials.

The publication WO 2006/125630 A1 shows a drawer with a side frame onto which a functional profile can be placed. In one exemplary embodiment, the functional profile is designed as a light strip and has a hollow chamber into which LEDs are inserted. The light strip has a base profile that is open at least along one long side, which can be attached to the side frame using locking elements, for example, and into which the LEDs are inserted. The base profile is closed along the length by a further profile that is glued on, which is translucent, so that light exits only through this further profile. Gluing the different profiles involves increased manufacturing effort. In a further exemplary embodiment, the publication shows WO 2006/125630 A1 a drawer that has a one-piece translucent and longitudinally closed profile with a hollow chamber in which LEDs are arranged.

Such a profile can advantageously be attached in a simple manner to a conventionally constructed side wall of a thrust element. For example, light can be emitted primarily to illuminate the interior of the thrust element. In addition, the profile can have further luminous surfaces that emit light in directions other than towards the interior of the thrust element.

Due to the one-piece design of the profile, the light exit surfaces are made of the same material as the rest of the profile, which can be undesirable for optical reasons. In addition, it is difficult to insert the LEDs into the profile, which is closed on the long side.

It is an object of the present invention to provide a push element with a lighting device which has a translucent profile with a hollow chamber into which LEDs are inserted, in which the LEDs can be inserted in a simple manner and in which it can be easily determined which surfaces of the profile represent light exit surfaces. It is another task to create a piece of furniture with a push element with lighting device.

This task is solved by a push element or a piece of furniture with the features of the respective independent claim. Advantageous refinements and further developments are the subject of the dependent claims.

In the lighting device, the hollow chamber of the profile is made in one piece and is closed in cross section and the profile is translucent. According to the invention, the LEDs are arranged on an LED strip which is inserted into the at least one hollow chamber from an end face of the profile.

Because the entire profile is made of a translucent material, in particular plastic, light emission is not limited to certain areas of the profile, for example a light exit window in the profile, but can take place over surfaces of the entire profile. Light is mainly emitted via a surface of the profile opposite the LED strip. Due to the radiation characteristics of the LEDs, which are generally not strongly directed, light is also emitted on adjacent sides of the profile and, due to internal reflection in the material of the profile, also to a lesser extent on the one behind the LED strip open side of the profile. At the same time, the one-piece design ensures a continuous and therefore attractive and hygienic surface of the lighting device that is easy to keep clean.

Furthermore, according to the invention, the translucent profile is at least partially covered by an opaque cover, in particular a film, arranged on the profile. The cover can be used to specifically prevent light from escaping in certain areas of the cover if this is desired. When using a film, there is a lot of design freedom for the areas to be covered, which can also extend over the edges of the profile, for example.

In an advantageous embodiment of the thrust element, the profile of the lighting device has a connecting contour on an outside, the connecting contour being able to be brought into engagement with a connecting element of the at least one wall of the thrust element. For example, the connection contour has a keyhole cross section. The connecting contour allows the lighting device to be mounted on the wall of the push element in a concealed and preferably tool-free manner.

In a further advantageous embodiment of the thrust element, the hollow chamber of the profile of the lighting device has a guide for the LED strip. The guide is preferably formed by two longitudinal webs running in the longitudinal direction on opposite inner sides of the hollow chamber. The LED strip can then simply be pushed into the profile from one of the end faces. The LED strip can be designed to be bendable, but is at least so rigid that it makes insertion easier.

In a further advantageous embodiment of the thrust element, an outside of the profile of the lighting device projects beyond the cross section of the hollow chamber in the form of at least one plate-shaped apron. The apron forms a type of cladding for the inner and/or outer side surface of the wall of the push element and offers an opportunity to design this side surface individually for certain furniture or furniture series. In addition, the light emitted by the LED strip will also spread into the apron through internal reflection in the material of the profile and emerge from there on the surface, so that the apron also shows light effects.

In a further advantageous embodiment of the thrust element, the at least one wall has a connecting element which cooperates with a connecting contour of the lighting device in order to fasten the lighting device to the thrust element.

In a further advantageous embodiment of the thrust element, the connecting element is arranged on an upwardly directed end face of the at least one wall. This makes it possible to conceal a lighting device that extends along the top of the wall. Preferably, the profile of the lighting device is almost flush with the at least one wall in the longitudinal direction.

In a further advantageous embodiment of the thrust element, the lighting device has at least one plate-shaped apron which projects beyond the cross section of a hollow chamber and rests on an inside and/or an outside of the at least one wall. This creates a partial or full-surface covering for the inner and/or outer side surface of the wall of the push element, which can be individually modified in terms of its appearance and feel for specific furniture or furniture series.

In a further advantageous embodiment, the thrust element has a power supply unit with a rechargeable energy storage device, which is mounted, for example, on a rear wall or a bottom of the thrust element and is therefore not visible when the thrust element is installed. The rechargeable energy storage device is preferably a rechargeable battery, but can also be a capacitor, for example. The power supply unit enables autonomous operation of the lighting device without the need for a trailing cable or the like to be routed from a furniture body to the push element. This offers the advantage of being able to operate the lighting device in any position (e.g. any opening state) using the energy storage device without annoying and possibly tangled cables and without maintenance-prone sliding contacts.

The power supply unit preferably has a base mounted on the thrust element, in which the rechargeable energy storage is removably accommodated. For this purpose, contacts for supplying power to the base can be arranged on the energy storage device. When the energy storage device is removed, the contacts can also be used to supply charging current to recharge the energy storage device. Furthermore, the energy storage can have a charging connection formed separately from the contacts, in particular a USB (Universal Serial Bus) charging connection.

In a further advantageous embodiment, the power supply device has at least one output connection, which is preferably as Plug-in connection is formed and to which the at least one lighting device can be connected.

The power supply device preferably has at least one sensor coupled to the control unit in order to switch the lighting device depending on an opening state of the thrust element. The sensor can be, for example, a magnetic field sensor, e.g. a reed contact or a Hall sensor. A permanent magnet attached, for example glued, to a side or rear body wall of a piece of furniture can be used to generate a magnetic field that is detected by the magnetic sensor in the base. Depending on the opening state of the thrust element, the strength of the magnetic field on the sensor changes, causing the control unit to switch the lighting device on or off.

The control device is preferably further designed to control the lighting device according to the principle of human centric lighting. This lighting concept takes into account the visual, emotional and biological effects of light. The control device controls at least the color temperature and the lighting intensity over the course of the day. If, for example, warm white and cold white LEDs are used in the LED strip of the lighting device, the brightness of which can be adjusted independently of one another, white light with different color temperatures can be mixed additively. Instead of or in addition to warm white and cold white LEDs, colored LEDs can also be provided in the lighting device, in particular red, green and blue LEDs, in order to cover a large color space through color mixing. The red, green and blue LEDs can be separate LEDs or can be used in the form of so-called RGB LEDs, which combine light chips of the three colors mentioned in one housing.

Further preferably, the control unit has a wireless data interface, wherein the wireless data interface communicates with at least one Internet-capable central station and wherein the central station communicates with further, foreign devices, whereby the foreign devices can trigger an action of the control unit of the lighting device or the control unit of the lighting device can trigger an action which triggers foreign devices. The wireless data interface can form a mesh network with further wireless data interfaces of other devices or lighting devices. The control center can be formed by or integrated into a smart home system.

A piece of furniture according to the invention is characterized by the use of at least one such push element. This results in the advantages mentioned in connection with the thrust element. The push element can in particular be designed as a drawer, also called a drawer, and the furniture can in particular be a cabinet or shelf piece of furniture.

• 1a eine isometrische Teilansicht eines Schubkastens als Schubelement eines Möbels mit einer anmontierten Beleuchtungseinrichtung;
• 1b den Schubkasten gemäß 1a und die Beleuchtungseinrichtung vor ihrer Montage;
• 2a-c eine isometrische Gesamtansicht, eine Schnittdarstellung und eine isometrische Explosionsdarstellung der Beleuchtungseinrichtung aus den 1a und 1 b;
• 3a eine isometrische Teilansicht eines Schubkastens als Schubelement eines Möbels mit anmontierter Beleuchtungseinrichtung in einem zweiten Ausführungsbeispiel;
• 3b den Schubkasten gemäß 3a und die Beleuchtungseinrichtung vor ihrer Montage;
• 4a, b eine isometrische Gesamtansicht sowie eine Schnittdarstellung der Beleuchtungseinrichtung gemäß den 3a und 3b;
• 5a den Schubkasten gemäß 3a mit einer Stromversorgungseinheit; und
• 5b den Schubkasten gemäß 5a mit aus der Stromversorgungseinheit entnommenem Energiespeicher.

The invention is explained in more detail below using exemplary embodiments with the aid of figures. The figures show:

• 1a an isometric partial view of a drawer as a push element of a piece of furniture with an attached lighting device;
• 1b according to the drawer 1a and the lighting device before its assembly;
• 2a-c an isometric overall view, a sectional view and an isometric exploded view of the lighting device from the 1a and 1 b ;
• 3a an isometric partial view of a drawer as a push element of a piece of furniture with an attached lighting device in a second exemplary embodiment;
• 3b according to the drawer 3a and the lighting device before its assembly;
• 4a, b an isometric overall view and a sectional view of the lighting device according to 3a and 3b ;
• 5a according to the drawer 3a with a power supply unit; and
• 5b according to the drawer 5a with energy storage removed from the power supply unit.

In all figures, the same reference numerals indicate the same or elements that have the same effect. For reasons of clarity, not every element in the figures is provided with a reference number.

In the description, terms such as “top”, “bottom”, “left”, “right” initially refer to the exemplary representation chosen in the respective figures. With regard to the terms "top" and "bottom", in connection with a drawer, the representation in the figures corresponds to the orientation usually assumed in space, in which a bottom of the drawer is aligned horizontally and the drawer is open at the top. The terms “front” and “rear” refer to an extension direction of a drawer pull-out guide.

In the 1a and 1b a drawer 1 is shown as an example of a push element in an isometric partial view. 1a shows the drawer 1 with a mounted lighting device 10 and 1b with the lighting device 10 raised before its assembly.

In the 1a and 1b a side wall 2 and a rear wall 3 as well as a base 4 are shown from the drawer 1. When the drawer 1 is fully assembled, there is another side wall opposite, parallel to the side wall 2 shown, and opposite the rear wall 3, parallel to this, there is a front wall, often also referred to as a “front”. The walls 2, 3 and the floor 4 are connected to one another, with only an angle connector 5 between the rear wall 3 and the floor 4 being visible in the figures. As a rule, such a drawer is guided within a furniture body by pull-out guides which are arranged below the side walls 2 or the floor 4.

In the exemplary embodiment shown, the rear wall 3 and the bottom 4 are made of a plate material, for example wood or a wood material or even plastic. The side wall 2 is made from a sheet metal material in a stamping and bending process. The materials specified for the side walls 2, the rear wall 3 and the bottom 4 are purely examples. A push element according to the application with lighting device 10 can also be made from other materials or other material combinations of the walls 2, 3 and the floor 4.

The lighting device 10 is designed as a light bar and is also referred to below as “light bar 10” for the sake of easier illustration. It includes a continuous profile 11. The ends of the profile 11 are closed on one or both sides with cover caps 12. These are, for example, provided with locking and/or clamping projections 121, with the help of which they clamp or lock in the profile 11. A connecting cable 13 emerges from the cover cap 12, which is visible in the figures and points backwards in the pull-out direction, and a plug 131 is attached to its free end.

As in 1b As can be seen, several connecting elements 6 are formed along an upper narrow edge of the side wall 2, which are connected to a connecting contour of the profile 11, which is in the 1 b is not visible, work together (see connection contour 113 in 2c ). In this way, the light strip 10 can simply be snapped onto the side wall 2 (“clipped”) or pushed in.

In the 2a until 2c is the light bar 10 from the example 1a and 1b presented separately in more detail. 2a is an isometric overall view of the light bar 10, 2 B shows the light bar 10 in a sectional view and 2c is an isometric exploded view of the light bar 10.

The already mentioned profile 11 of the light strip 10 is a hollow profile in which a hollow chamber 111 is formed. The hollow chamber 111 has a substantially rectangular cross section. Adjacent to a side edge of the profile 11, a longitudinal web 112 is formed on the top and bottom, through which, together with the side wall, a c-shaped guide structure is formed within the hollow chamber 111.

An LED strip 14 is inserted into this guide structure, which is best placed in the 2c can be recognized. In the LED strip 14, a plurality of LEDs 141 are arranged next to one another in the longitudinal direction of the LED strip 14 and are electrically connected. For example, a plastic material provided with conductor tracks can serve as the carrier material for the LED strip 14. Together with the LEDs 141, current limiting elements, in particular resistors, can be integrated on the LED strip 14, which are connected to the LEDs 141. At one end of the LED strip 14, the connection cables 13 already mentioned are connected, through which the LEDs 141 can be powered.

The LED strip 14 can be designed to be bendable, but is at least so rigid that it can be inserted from one side into the c-shaped guide structure in the hollow chamber 111 of the profile 11. By closing the hollow chamber 111 on the sides with the cover caps 12, the LED strip 14 is then fixed within the hollow chamber 111. LED strips of a similar type are available commercially, which can be rolled up and have a self-adhesive tape on the back. Such LED strips can be used as LED strips 14 if they are applied to a corresponding carrier, which gives the LED strip 14 the necessary bending rigidity for insertion into the profile 11.

By inserting the LED strip 14 into the profile 11 in this way, the latter can advantageously be designed as a one-piece hollow profile that is self-contained with respect to the cross section. The profile 11 is made of a translucent material, in particular a translucent plastic, so that light is largely emitted via the side surface opposite the LED strip 14. However, due to the radiation characteristics of the LEDs 141, light is also emitted on the top of the profile 11 and, due to internal reflection in the material of the profile 11, to a lesser extent also on the side of the profile 11 behind the LED strip. At the same time, there is a continuous and therefore attractive and hygienic surface that is easy to keep clean Light bar 10 given.

If in certain applications radiation over all surfaces of the profile 11 is not desired, the translucent profile 11 can be at least partially covered by an opaque cover arranged on the profile 11, in particular a film. Light emission can be specifically prevented in certain areas of the profile 11 via the cover.

In the example shown, a connecting contour 113 is formed in the middle on the underside of the profile 11, which is used to fasten the light strip 10 to the side wall 2 and which is connected to the in 1b visible connecting elements 6 on the upper narrow side of the side wall 2 cooperates, in particular locked. In the present case, the connecting contour 113 has an approximately keyhole-shaped cross section. Alternatively, other cross sections of the connecting contour 113 can also be used, which are suitable for clamping and/or latching assembly. Undercut contours are preferred for snap-in mounting.

In the 3a and 3b is in the same way as in the 1a and 1 b a second embodiment of a thrust element with a lighting device 10 is shown. The push element is in turn a drawer 1, the basic structure of which is identical to that shown in the first exemplary embodiment. The lighting device 10 also shows a comparable structure, with the differences from the lighting device 10 of the first exemplary embodiment being discussed in particular below.

The lighting device 10 of this second exemplary embodiment is in 4a in an isometric view and in 4b also shown separately and in more detail in a sectional view.

In contrast to the first exemplary embodiment, in the present lighting device 10, a side surface of the profile 11 is extended downwards beyond the hollow chamber 111 in the form of a plate as an apron 114. When installed, this apron 114 at least partially covers the outer side surface of the side wall 2 of the drawer 1, completely in the exemplary embodiment shown here. In its lower area, the apron 114 can be provided, for example, with an adhesive strip, magnetic strip or a securing element for reaching under the side wall 2 or for engaging in the side wall 2 in order to secure the apron 114.

The apron 114 thus forms a cladding for the outer side surface of the side wall 2 and offers the possibility of designing this side surface individually for certain furniture or furniture series. In addition, light emitted by the LED strip 14 will also spread into the apron 114 through internal reflection in the material of the profile 11 and emerge there on the surface, so that the apron 114 also shows light effects. The amount of light emerging depends on the surface quality of the apron 114, which can be designed according to the desired lighting effects. In particular, impressions made into the surface of the apron 114 stand out clearly when the LED strip 14 is switched on.

In the example shown, the apron 114 is formed on one side of the lighting device 10 and rests on the outside of the drawer 1 on its side wall 2. In further embodiments, the apron 114 can alternatively rest on the inside of the side wall 2 (or another wall). As a further alternative, the lighting device 10 can have two aprons 114, one on each side of the hollow chamber 111. The two aprons 114 can then rest on the inside and outside of the corresponding wall and cover them partially or completely.

In the 5a and 5b is in the same way as in 4a a drawer 1 with lighting device 10 shown in a partial isometric view.

In contrast to the previously described examples, in this case a power supply unit 20 is mounted on the outside of the rear wall 3. Due to the positioning on the back of the rear wall 3 of the drawer 1, this power supply unit 20 is not visible when the drawer 1 is installed.

The power supply unit 20 has a base 21 which is attached to the rear wall 3, for example screwed on. An energy storage device 22, for example a rechargeable energy storage device, is inserted into this base 21 and can be removed, as shown in 5b shown. The energy storage 22 is designed here as an example of a battery (rechargeable battery). Alternatively, the use of a capacitor, in particular a so-called supercap, as energy storage 22 is also possible. Another alternative is the power supply unit 20 can also be arranged under the bottom 4 of the drawer 1.

A receiving compartment 211 is formed in the base 21, with locking elements 212 being provided, which cooperate with corresponding counter-locking elements 221 on the energy storage 22, so that the energy storage 22 can be inserted into the base 21 in a locking manner and can also be removed again. Alternatively or additionally, magnets can also be provided in the energy storage 22 and/or the base 21 for fixing the energy storage 22. Furthermore, contacts 213 are formed in the base 21, which establish an electrical connection between the energy storage 22 and the base 21 with corresponding mating contacts on the energy storage 22.

There are also two output connections 214 on the base 21, into which the plugs 131 of the lighting device(s) 10 can be plugged in to provide their power supply. The power supply unit 20 is preferably positioned adjacent to one of the side walls 2 on the rear wall 3, so that - as in the 5a and 5b visible - a connecting cable 13 with its plug 131 can be plugged directly into the base 21 even if the connecting cable 13 is short. The lighting device 10, which can be provided on the opposite side of the drawer 1, can be connected via a second output connection 214 using an extension cable 23. Of this further lighting device 10 is in the 5a and 5b only a section of the connecting cable 13 with the corresponding plug 131 is shown. The extension cable 23 can be made available in different lengths, so that drawers 1 of different widths can be wired without excess connection or extension cable 13, 23 hanging down.

The power supply unit 20 enables autonomous operation of the lighting device 10 without a trailing cable or the like having to be routed from a furniture body to the drawer 1. This offers the advantage of being able to operate the lighting device 10 with the drawer 1 open using the battery as an energy storage device 22 without any annoying and possibly tangled cables and without maintenance-prone sliding contacts. With appropriate dimensioning of the capacity of the energy storage 22 and low power consumption of the lighting device 10 by using the LEDs 141, operation can take place over a period of several months or longer before the energy storage 22 needs to be recharged.

Since the energy storage 22 can be easily removed, occasional recharging requires little effort for the user. An external charging station can be provided into which the energy storage device 22 is plugged in for charging. Alternatively, it is conceivable to provide a charging connection on the housing of the energy storage 22, which is accessible after the energy storage 22 has been removed and to which a charger with a charging cable can be connected. A common and widespread USB (Universal Serial Bus) socket is preferably used as the charging connection, so that the energy storage device 22 can be charged with conventional USB plug-in power supplies that are already available in many households. Alternatively or in addition to the removable nature of the energy storage device 22, provision can be made to supply current to the base 21 or the energy storage device 22 directly via corresponding (spring) contacts from the furniture body when the drawer 1 is closed, which power is used to charge the energy storage device 22. If desired, manual recharging of the energy storage 22 can be made unnecessary. Here too, no error-prone sliding contacts or trailing cables are required.

Preferably, the base 21 serves not only to accommodate the energy storage 22 and to distribute the operating current for the lighting device 10, but also to control the lighting device 10 via an integrated control unit for switching it on and off or, if necessary, regulating its brightness and possibly additionally required voltage conversion.

To switch the lighting device 10, the base 21 can have sensors coupled to the control unit, via which an opening state of the drawer 1 is detected in order to switch the lighting device 10 on or off depending on the detected opening state.

In one embodiment, a magnetic sensor is arranged in the base 21, which switches the lighting device 10 depending on a detected magnetic field. A reed contact or a Hall sensor can serve as a magnetic sensor. A permanent magnet attached, for example glued, to a side or rear body wall generates a magnetic field that is detected by the magnetic sensor in the base 21. It can then be provided that the lighting device 10 is switched off when the magnetic field is detected (i.e. the drawer 1 is closed). If the drawer is opened, the magnetic field is no longer detected and it is intended that the lighting device 10 is switched on. To prevent the drawer from being accidentally opened permanently 1, the lighting device 10 remains permanently switched on, as a result of which the energy storage 22 would be emptied too quickly, an automatic timer can additionally be provided which limits the on-time of the lighting device 10 to a predetermined value, for example a few minutes. Alternatively, conversely, it can be provided that the lighting device is only switched on when a magnetic field is detected. In this case, the magnet that activates the magnetic field sensor is glued into the front area of the body, so that a magnetic field is detected by the base 21 when the drawer 1 is open.

Instead of or in addition to the magnetic sensor, further options for switching the lighting device 10 can be provided. For example, switching can take place via a mechanical scanning pushbutton switch, a motion sensor, an acceleration sensor or optically via a light barrier.

If a connection to a power supply unit for charging the energy storage device 22 is established when the drawer 1 is retracted, this contact can also be evaluated and the information obtained can be used to switch on the lighting device 10.

Furthermore, a touch switch can be integrated into the base 21, which is coupled, for example, to a handle of the drawer 1, so that when the drawer 1 is actuated, the lighting device 10 is switched on, for example for a predetermined period of time.

The light strip 10 or the LED strip 14 can have several LEDs 141, which either have the same optical properties (e.g. color, color temperature, intensity) or different ones. It can be provided that LEDs 141 with different properties can be selectively controlled by the control device. If, for example, warm white and cold white LEDs 141 are used, the brightness of which can be adjusted independently of one another, white light with different color temperatures can be mixed additively. Instead of or in addition to warm white and cold white LEDs, colored LEDs can also be provided in the lighting device, in particular red, green and blue LEDs, in order to cover a large color space through color mixing. The red, green and blue LEDs can be separate LEDs or can be used in the form of so-called RGB LEDs, which combine light chips of the three colors mentioned in one housing.

To adjust the color temperature (or color), control elements can be present on the control device of the base 21, or this can alternatively or additionally be provided with a wireless data interface.

A wireless data interface can be done, for example, via WLAN, Bluetooth, ZigBee, ZWAVE and, for example, on the frequencies 433 MHz (megahertz) or 868 MHz or other suitable frequencies. KNX or IP can also be used as protocols. The device can communicate with external devices and, for example, be “Smart Home” capable and can also be controlled via voice control.

In the case of an application in the sense of a smart home system, for example, various push elements can be networked with one another or be coupled to a smart home central unit. This makes it possible, for example, for only the top open drawer to be illuminated if two drawers arranged one above the other are open. Alternatively, both drawers could be illuminated, provided that the front of the lower drawer is in front of that of the drawer above, with positions of the drawer being recorded using appropriate sensors.

Furthermore, a warning function (e.g. of a risk of tipping over) can be implemented, which causes the lighting device of a drawer to flash or something similar if, for example, more than one drawer in a piece of furniture is pulled out.

Alternatively or additionally, the lighting device or sensors coupled to the associated control device could also be part of a smart home alarm system and, for example, trigger a siren or send a message to a person.

Furthermore, a signaling function can be implemented in a smart home system, which also causes the lighting device of a drawer to flash or something similar when, for example, the doorbell is pressed or the telephone rings. The lighting effects can vary. For example, pressing the doorbell may cause the lighting device to flash, while ringing the telephone may cause the lighting device to flash.

An automatic daily change in the color temperature and/or the intensity of the lighting device could also take place as part of a smart home system or locally in the control device. The lighting device can, for example, be designed according to the concepts of Human Centric Lighting (HCL). Human Centric Lighting includes a lighting concept in which the visual, emotional and biological effects of light must be taken into account.

Purely as an example is in the 5a and 5b the lighting device 10 according to the second exemplary embodiment (cf. 3a-4b) educated. It goes without saying that the power supply unit 20 is connected in the same way to a lighting device 10 according to the first exemplary embodiment 1a-2c can be used.

In addition, the power supply unit 20 can alternatively or additionally be used to supply other power-requiring components of a push element or other movable furniture part.

Reference symbol list

1

drawer

2

wall (side wall)

3

wall (back wall)

4

Floor

5

Angle connector

6

connecting element

10

Lighting device (light strip)

11

profile

111

hollow chamber

112

Longitudinal web

113

Connection contour

114

apron

12

Cover cap

121

Locking or clamping projection

13

Connection cable

131

Plug

14

LED strips

141

LED

20

Power supply unit

21

Base

211

Receiving compartment

212

Locking element

213

Contact

214

Output port

22

Energy storage

221

Counter-locking element

23

extension cable

Claims (22)

Push element, in particular drawer (1), for a piece of furniture with at least one one-part or multi-part wall (2, 3), having at least one lighting device (10), the at least one wall (2, 3) having a connecting element (6), which cooperates with a connecting contour (113) of the lighting device (10) and which is arranged on an upward-facing end face of the at least one wall (2, 3) in order to attach the lighting device to the thrust element, the lighting device (10) having a translucent Has a profile (11) which is made of a plastic and has at least one hollow chamber (111) in which LEDs (141) are arranged, the hollow chamber (111) of the profile (11) being made in one piece and closed in cross section, thereby characterized in that the profile is almost flush with the at least one wall (2, 3) in the longitudinal direction, that the LEDs (141) are arranged on an LED strip (14) which extends from one end face of the profile (11) into the at least a hollow chamber (111) is inserted, and that the translucent profile (11) is at least partially covered by a film arranged on the profile (11) as an opaque cover. Thrust element after Claim 1 , in which the connecting contour (113) has a keyhole cross section. Thrust element after Claim 1 or 2 , in which the hollow chamber (111) has a guide for the LED strip (14). Thrust element after Claim 3 , in which the guide is formed by two longitudinal webs (112) running in the longitudinal direction on opposite inner sides of the hollow chamber (111). Thrust element according to one of the Claims 1 until 4 , in which the LED strip (14) is rigid. Thrust element according to one of the Claims 1 until 5 , in which an outside of the profile (11) protrudes beyond the cross section of the hollow chamber (111) in the form of at least one plate-shaped apron (114). Thrust element after Claim 6 , in which the apron (114) rests on an inside and/or an outside of the at least one wall (2, 3). Thrust element after Claim 7 , in which the apron (114) almost completely covers the at least one wall (2, 3) on the corresponding side. Thrust element according to one of the Claims 1 until 8th , comprising a power supply unit (20) with a rechargeable energy storage device (22). Thrust element after Claim 9 , in which the power supply unit (20) is mounted on a rear wall (3) or the bottom (4) of the thrust element. Thrust element after Claim 9 or 10 , comprising a base (21) mounted on the thrust element, in which the rechargeable energy storage (22) is removably accommodated. Thrust element after Claim 11 , wherein contacts for delivering current to the base (21) are arranged on the energy storage (22). Thrust element according to one of the Claims 9 until 12 , wherein the energy storage (22) has a charging connection. Thrust element after Claim 11 and 12 , whereby the shop closure is designed separately from the contacts. Thrust element after Claim 13 or 14 , where the charging port is a USB port. Thrust element according to one of the Claims 9 until 15 , in which the power supply device (20) has at least one output connection (214), preferably designed as a plug-in connection, for connecting the at least one lighting device (10). Thrust element according to one of the Claims 9 until 16 , in which the power supply device (20) has at least one control unit for switching the at least one lighting device (10) on and off. Thrust element after Claim 17 , in which the power supply device (20) has at least one sensor coupled to the control unit in order to switch the lighting device (10) depending on an opening state of the thrust element. Thrust element after Claim 17 or 18 , in which the control unit has a wireless data interface, the wireless data interface being set up to communicate with at least one internet-enabled control center and the control center being set up to communicate with other, non-specific devices, the non-specific devices triggering an action by the control unit or the control unit can trigger an action from a different device. Thrust element after Claim 19 , in which the lighting device (10) is controlled by the control unit according to the principle of human centric lighting. Furniture, in particular cabinet or shelf furniture, having at least one push element according to one of Claims 1 until 20 . Furniture after Claim 21 , in which the at least one push element is a drawer (1).

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