Power supply for a wing of a door or a window

Abstract

An electrical device for automatically opening, closing, and / or holding a door or window leaf, in particular a door closer, comprises a drive unit associated with the leaf or frame and a lever assembly located between the drive unit and the frame or leaf for power transmission. The lever assembly for supplying power to at least one electrical component of the device associated with the leaf includes power transmission means.

Description

[0001] The present invention relates to an electrical device for automatically opening, closing and / or locking a leaf of a door or window, in particular a door closer, with a drive associated with the leaf or a frame and a lever arrangement provided between the drive and the frame or leaf, serving to transmit the force.

[0002] Door closers with electrically operated hold-open devices, such as free-swing door closers or similar, are currently usually powered via a door transition cable. Installing such a door transition cable and the machining of the door leaf and frame involve additional effort. Furthermore, the door transition cables are visually conspicuous and subject to the risk of deliberate damage.

[0003] An electrical device according to the preamble of claim 1 is known from EP 2 787 156 A2, which describes a door linkage for transmitting power between a door closer or drive and a door or wall. The components described therein serve as electrical conductors or as devices for installing electrically conductive elements.

[0004] DE 10 2010 017 681 A1 discloses a swing-leaf actuator with a slide rail in which a slide piece of a slide arm is guided in translation. The slide arm is operatively connected to a drive shaft of the swing-leaf actuator such that the swing-leaf actuator is capable of opening and / or closing a connected swing leaf by means of the slide piece and the slide rail. At least a predetermined opening state of the connected swing leaf is detected by a sensor mounted in the slide rail, and a signal is then transmitted to the swing-leaf actuator. The signal, in the form of an electrical current, travels from a pushbutton switch installed in the slide rail, a contact rail also installed therein, via the slide piece and the slide arm, to the swing-leaf actuator.

[0005] The invention is based on the object of providing an electrical device for automatically opening, closing and / or locking a leaf of a door or window of the type mentioned above, which ensures a visually less conspicuous power connection that is better protected against deliberate damage while being inexpensive to manufacture and assemble.

[0006] The object is achieved according to the invention by an electrical device having the features of claim 1. Preferred embodiments of the device according to the invention emerge from the subclaims, the present description and the drawing.

[0007] The electrical device according to the invention for automatically opening, closing, and / or locking a leaf of a door or window, in particular a door closer, comprises a drive associated with the leaf or frame and a lever arrangement provided between the drive and the frame or leaf for power transmission. The lever arrangement comprises power transmission means for supplying power to at least one electrical component of the device associated with the leaf.

[0008] The electrical component assigned to the leaf and to be supplied with power can be the drive of the electrical device and / or a sensor, display element, and / or the like assigned to the leaf. If the electrical device is a door closer, it can be equipped with an electrically operated hold-open device and, in particular, can be designed as a free-swing door closer. Both door closers with a slide rail and door closers with a linkage are conceivable.

[0009] The design according to the invention results in a visually less conspicuous power connection that is better protected against deliberate damage, while being more cost-effective to manufacture and easier to install. For example, in a door closer with a slide rail, the power can now be conducted from the frame via the lever arrangement to the drive assigned to the leaf, e.g., to an electromagnet assigned to this drive, to a sensor, display element, and / or the like assigned to the leaf. Even with a drive arranged on the frame, a power supply to the leaf can thus be ensured via the lever arrangement in order to, as already mentioned, ensure, for example, the power supply of sensors, display elements, and / or the like.

[0010] The lever assembly comprises a lever provided with a sliding block guided in a slide rail. The slide rail includes means for supplying power to the sliding block.

[0011] It is advantageous if a corrugated cable, preferably pre-tensioned by a spring or rubber band, is guided in the slide rail for supplying power to the sliding block, wherein the cable is preferably guided in a chamber provided in the slide rail.

[0012] For example, a spiral cable can be installed in the slide rail to supply power to the sliding block. This cable is less susceptible to tensile stress but takes up a little more space.

[0013] It is also particularly advantageous if the means for supplying power to the sliding block comprise a cable reel, particularly arranged behind the slide rail. Such a cable reel can be relatively compact and therefore takes up little space. It can be mounted, in particular, behind the slide rail.

[0014] For example, means for supplying power to the sliding block are also conceivable, including a flexible cable, particularly one that is chambered in the slide rail. Flexible cables can be designed for high cycle rates and small bending radii.

[0015] It is particularly advantageous if the slide rail is equipped with sliding contacts to supply power to the sliding block. Power transmission via sliding contacts is relatively easy to implement.

[0016] According to a further preferred practical embodiment of the electrical device according to the invention, means are provided for transferring current from the sliding block to the lever arrangement.

[0017] According to a first aspect of the electrical device according to the invention, the means for transferring current from the sliding block to the lever arrangement comprise a cable. Via such a cable, the current can be transferred directly from the sliding block to the lever arrangement. The cable is guided to the lever arrangement via recesses provided in the sliding block. The cable is guided with at least one turn in a corresponding recess in the sliding block. The cable guidance can be improved by accommodating it in a round recess. The cable is guided with at least one turn in a corresponding recess in the sliding block.

[0018] The sliding block can be screwed to the lever.

[0019] According to a second aspect of the electrical device according to the invention, the means for transferring current from the sliding block to the lever assembly comprise a sliding block pin connected to the lever assembly and clippable into the sliding block. The pin has separate electrical contact areas for the various electrical poles, with which spring plates come into contact when the sliding block pin is clipped in. One electrical contact area is connected directly to the electrically conductive base body of the lever assembly.

[0020] When clipped into the sliding block, a power connection is automatically established. The connection between the sliding block and the bolt is made via spring plates, which can be relatively small. The sliding block bolt has separate contact areas from which the current is passed on. One of the electrical poles can be passed directly via the lever assembly.

[0021] An embodiment not belonging to the invention is characterized in that a sliding block bolt can be screwed to the lever arrangement and the means for transferring current from the sliding block to the lever arrangement comprise spring pins via which the current is guided from the sliding block to the sliding block bolt.

[0022] The electrical contact to the lever assembly is thus established by screwing the sliding block bolt to the lever assembly. The current is conducted from the sliding block to the sliding block bolt via the spring pins.

[0023] According to a third aspect of the electrical device according to the invention, the sliding block can be screwed to the lever assembly. The means for transferring current from the sliding block to the lever assembly comprise spring pins, through which a direct electrical contact with the lever assembly can be established by screwing the sliding block to the lever assembly.

[0024] According to a preferred embodiment of the electrical device according to the invention, means are provided for transmitting current from the lever arrangement to the drive.

[0025] Particularly in a door closer with a freewheel realized via a drive plate arranged between the lever assembly and the drive, the means for transferring current from the lever assembly to the drive advantageously comprise a spring pin provided in a drive pin connected to the lever assembly. Preferably, the spring pin is in contact with a conductor track mounted on the drive to transmit one electrical pole, while the electrically conductive base body of the lever assembly is directly connected to the electrically conductive output shaft of the drive to transmit the other electrical pole.

[0026] One electrical pole can be transmitted to the drive via the spring pin provided in the driving pin and the other electrical pole can be transmitted directly via the lever arrangement.

[0027] If the output shaft of the drive is hollow, the means for transferring current from the lever arrangement to the drive can in particular also comprise a cable passed through the hollow output shaft.

[0028] For example, with a hollow spindle screw connection, a cable can be routed through the drive after the lever is installed. Such a cable can be twisted along the entire spindle length, reducing the cable load during each leaf operation.

[0029] In particular in the case of a door closer with a freewheel implemented in the drive, the means for transferring current from the lever arrangement to the drive can in particular also comprise a removal device which can be attached to the drive or to the lever arrangement and which is provided with spring pins or the like, via which an electrical contact can be made to the conductor tracks assigned to the lever arrangement or to the drive when the lever arrangement is attached to the drive in the axial direction of the output axis.

[0030] In particular, a design is also conceivable in which a receiving device is provided on the drive or on the underside of the lever arrangement for transferring power from the lever arrangement to the drive, in which receiving device a cable with one or more wraps is guided in a chamber. Tangling of the cable in the door profile or the like is thus ruled out. The receiving device can be delivered pre-assembled with the cable. Particularly in the case of a door closer with a freewheel implemented in the drive, the means for transmitting power from the lever arrangement to the drive can advantageously also comprise an extension provided on the lever arrangement with radially circumferential conductor tracks and a removal device provided on the drive, which is provided with spring pins or the like, via which electrical contact with the conductor tracks can be established when the lever arrangement is placed on the drive.

[0031] For example, embodiments are also conceivable in which the means for transferring current from the lever arrangement to the drive comprise a removal device provided on the lever arrangement, preferably clippable into the drive, which is provided with at least one spring pin or the like, via which an electrical contact can be made to a respective conductor track provided on the drive when the lever arrangement is placed on the drive.

[0032] A preferred practical embodiment of the electrical device according to the invention is characterized in that the lever arrangement comprises an additional lever and this additional lever is provided with the current transmission means of the lever arrangement serving to supply power to the at least one electrical component assigned to the wing.

[0033] The invention is described in more detail below using exemplary embodiments with reference to the drawing, in which: Fig. 1 is a schematic representation of an electrical device comprising a door closer with a slide rail, Fig. 2 is a schematic representation of an electrical device comprising a door closer with a linkage, Fig. 3 is a schematic perspective representation of a slide rail and a corrugated cable serving to transfer current between the slide rail and a sliding block of an exemplary embodiment of an electrical device according to the invention, Fig. 4 is an enlarged representation of a part of the slide rail according to Fig. 3, in which in particular the chamber in which the corrugated cable is guided can be seen, Fig. 5 a schematic representation of a spiral cable serving to transfer current between a slide rail and a slide block of a further exemplary embodiment of the electrical device according to the invention, Fig. 6 a schematic representation of a cable reel serving to transfer current between a slide rail and a slide block of a further exemplary embodiment of the electrical device according to the invention, Fig. 7 a schematic representation of a flex cable serving to transfer current between a slide rail and a slide block of a further exemplary embodiment of the electrical device according to the invention, Fig.8 is a schematic representation of a slide rail of a further exemplary embodiment of the electrical device according to the invention, wherein the slide rail is provided with sliding contacts for transferring current to a sliding block, Fig. 9 is a schematic representation of the current transfer from a sliding block to a lever arrangement of an embodiment of the electrical device not belonging to the invention, Fig. 10 is a schematic representation of the current transfer from a sliding block to a lever arrangement of a further exemplary embodiment of the electrical device according to the invention, Fig. 11 is a schematic representation of the means comprising a sliding bolt and spring plates that can be clipped into a sliding block for transferring current from the sliding block to a lever arrangement of a further exemplary embodiment of the electrical device according to the invention, Fig.12 a schematic representation of the means comprising a sliding block bolt and spring pins that can be screwed to a lever arrangement for transferring current from a sliding block to a lever arrangement of a claimed embodiment of the electrical device according to the invention not belonging to the invention, Fig. 13 a schematic representation of the spring pins and a sliding block that can be screwed to a lever arrangement for transferring current from the sliding block to the lever arrangement of a further exemplary embodiment of the electrical device according to the invention, Fig. 14 a schematic plan view of the end of the lever arrangement of the electrical device according to which the end is to be connected to the sliding block. Fig. 13, Fig. 15 a schematic representation of the means comprising a spring pin provided in a spring bolt for delivering current from a lever arrangement to a drive of a further exemplary embodiment of the electrical device according to the invention, Fig. 16 a schematic plan view of a part of the drive provided with conductor tracks of the electrical device according to Fig. 15, Fig. 17 a schematic representation of the means comprising a cable guided through a hollow output shaft for power transfer from a lever arrangement to a drive of a further exemplary embodiment of the electrical device according to the invention, Fig. 18 a schematic representation of the means comprising a pickup device provided with spring pins for power transfer from a lever arrangement to a drive of a further exemplary embodiment of the electrical device according to the invention, wherein the pickup device is attached to the drive, Fig. 19 a schematic representation of the electrical device according to Fig. 18, wherein the removal device is attached to the underside of the lever arrangement, Fig. 20 a schematic representation of the means comprising a cable chambered with at least one loop in a receiving device for transferring current from a lever arrangement to a drive of a further exemplary embodiment of the electrical device according to the invention, wherein the receiving device is provided on the drive, Fig. 21 a schematic representation of the electrical device according to Fig. 20, wherein the receiving device is attached to the underside of the lever arrangement, Fig. 22 a schematic representation of the means comprising an extension of a lever arrangement provided with radially encircling conductor tracks and a removal device provided on a drive with spring pins for transferring current from the lever arrangement to the drive of a further exemplary embodiment of the electrical device according to the invention, wherein the lever arrangement is removed from the drive, Fig. 23 a schematic representation of the electrical device according to Fig. 22 , wherein the lever arrangement is placed on the drive, and Fig. 24 a schematic representation of the means for transferring current from the lever arrangement to the drive of a further exemplary embodiment of the electrical device according to the invention, comprising a removal device provided on a lever arrangement and clippable into the drive.

[0034] The Fig. 1 to 24show different exemplary embodiments of an electrical device 10 according to the invention for automatically opening, closing and / or locking a leaf 12 of a door or a window, with a drive 14 assigned to the leaf 12 or a frame and a lever arrangement 16 provided between the drive 14 and the frame or leaf 12 and serving to transmit the force. The electrical device 10 can in particular be a door closer with a slide rail 18 (cf. Fig. 1 ) or a door closer with a rod (cf. Fig. 2 ) As can be seen from the two Fig. 1 and 2 As can be seen, the lever arrangement 16 in the case of the door closer with slide rail 18 comprises a single lever or sliding arm and in the case of the door closer with rods it comprises two levers which are connected to one another in an articulated manner.

[0035] In the case of a door closer with a slide rail 18, the current must be fed from the slide rail 18 to a slide block 20 provided on the lever arrangement 16, from the slide block 20 to the lever arrangement 16 and via the lever arrangement 16 to the drive 14, as shown in the Fig. 1 indicated by arrows. In a door closer with a rod (cf. Fig. 2 ) the interfaces are comparable to those of a door closer with a slide rail, so that in this case too, appropriate power transfer must be ensured.

[0036] The one in the Fig. 3 to 24 The different embodiments of a device 10 according to the invention shown have in common that the lever arrangement 16 (cf. also again the Fig. 1 and 2) comprises power transmission means for supplying power to at least one electrical component of the device 10 assigned to the wing 12. The electrical component to be supplied with power assigned to the wing 12 can be the drive 14, a sensor, a display element, and / or the like.

[0037] If the lever arrangement 16 comprises a lever or sliding arm which is provided with a sliding block 20 guided in a sliding rail 18 (cf. Fig. 1 ), the slide rail 18 comprises means for supplying power to the sliding block 20 (cf. Fig. 3 to 8 ). In addition, the electrical device 10 comprises means for transferring current from the sliding block 18 to the lever arrangement 16 (cf. Fig. 10,11 , 13 and 14 ) and means for transferring current from the lever arrangement 16 to the drive 14 (cf. Fig. 15 to 24 ).

[0038] In the embodiment according to the Figs. 3 and 4A corrugated cable 22, which can be pre-tensioned by a spring or rubber band, is guided in the slide rail 18 for supplying power to the slide block 20. In this case, this corrugated cable 22 is guided in a chamber 24 provided in the slide rail 18. As can be seen in particular from the Fig. 4 As can be seen, the corrugated cable 24 is two-core, with the two electrical poles designated "a" and "b" respectively.

[0039] Alternatively, a spiral cable 26 can be guided in the slide rail 18 to carry the current to the slide block 20, as shown in Fig. 5 Such a spiral cable is less susceptible to tensile stress, but requires somewhat more space.

[0040] The means for supplying power to the sliding block 20 may, for example, also comprise a cable reel 22 as shown in Fig. 6is shown. Such a cable reel 28 can be designed to be relatively compact and correspondingly space-saving and can be mounted as a separate element, in particular behind the slide rail 18.

[0041] Designs are also conceivable in which the means for supplying power to the sliding block 20 comprise a flexible cable 30 which is guided in particular in a chamber in the sliding rail 18 (cf. Fig. 7 ). Flex cables can be designed for high cycle counts and small bend radii.

[0042] In the embodiment according to Fig. 8 The slide rail 18 is provided with sliding contacts 32 for supplying power to the sliding block 20. Power transmission via sliding contacts is easy to implement.

[0043] The Fig. 10,11 , 13 and 14 The embodiments of the electrical device according to the invention shown comprise different means for transferring current from the sliding block 20 to the lever arrangement 16.

[0044] In this case, these means for transferring current from the sliding block 20 to the lever arrangement 16 in the embodiment not belonging to the invention according to Fig. 9 a cable 34, which is routed to the lever assembly 16 via recesses 36 provided in the sliding block 20. The current can thus be transmitted directly from the sliding block 20 to the lever assembly 16 via the cable 34. The cable 34 is routed to the lever assembly 16 via the recesses 36.

[0045] In contrast, the means for transferring current from the sliding block 20 to the lever arrangement 16 in the embodiment according to Fig. 10 a cable 34 guided with at least one winding in a corresponding recess 38 of the sliding block 20. The guidance of the cable 34 can be improved via a round recess 38. The cable is wound around the recess 38. The sliding block 20 can be screwed to the lever assembly 16.

[0046] Fig. 11shows an embodiment of the device 10 according to the invention, in which the means for transferring current from the sliding block 20 to the lever arrangement 16 comprise a sliding block pin 40 connected to the lever arrangement 16 and clippable into the sliding block 20. The sliding block pin has separate electrical contact areas for the various electrical poles a, b, with which spring plates 42 come into contact when the sliding block pin 40 is clipped in. In particular, an electrical contact area can be connected directly to the electrically conductive base body of the lever arrangement 16.

[0047] Because the sliding block pin 40 is designed to be clippable, a power connection is automatically established when clipped into the sliding block 20. The connection from the sliding block 20 to the sliding block pin 40 is established via small spring plates 42. The sliding block pin 40 has separate areas for the various electrical poles a, b, from which the current is carried. One pole is carried directly via the lever assembly 16.

[0048] In the embodiment not belonging to the invention according to Fig. 12 The sliding block bolt 40 can be screwed to the lever assembly 16. In this case, the means for transferring current from the sliding block 20 to the lever assembly 16 comprise spring pins 44, via which the current is conducted from the sliding block 20 to the sliding block bolt 40.

[0049] In the embodiment of the electrical unit 10 according to the Figs. 13 and 14The sliding block 20 can be screwed to the lever assembly 16. In this case, the means for transferring current from the sliding block 20 to the lever assembly 16 comprise spring pins 46, through which a direct electrical contact with the lever assembly 16 can be established by screwing the sliding block 20 to the lever assembly 16.

[0050] The Fig. 15 to 17 show embodiments of the electrical device 10 according to the invention with different means for transferring current from the lever arrangement 16 to the drive 14.

[0051] This is the case in the Fig. 15 to 17 reproduced electrical device 10 each comprises a free-wheel door closer.

[0052] In the embodiment according to the Figs. 15 and 16This is a door closer with a freewheel realized via a drive plate 48 arranged between the lever arrangement 16 and the drive 14. In this case, the means for transferring current from the lever arrangement 16 to the drive 14 comprise a spring pin 52 provided in a drive pin 50 connected to the lever arrangement 16, which is in contact with a conductor track 54 attached to the drive 14 to transmit one electrical pole. To transmit the other electrical pole, the electrically conductive base body of the lever arrangement 16 can be connected directly to the electrically conductive output shaft 56 of the drive 14.

[0053] In the embodiment according to Fig. 17The output shaft 56 of the drive 14 is hollow. The means for transmitting power from the lever assembly 16 to the drive 14 comprise a cable 58 routed through the hollow output shaft 56. In the present case, the shaft screw connection is hollow, so that after the lever assembly, a cable 58 can be routed through the drive 14. This allows the cable 58 to be rotated over the entire length of the shaft, thus reducing the cable loads during each door operation. For this purpose, the output shaft 56 can be designed to be completely continuous.

[0054] The Fig. 18 to 24 each show a door closer with freewheel implemented in the drive 14.

[0055] In the embodiment according to the Figs. 18 and 19a removal device 60 which can be attached to the drive or to the underside of the lever arrangement 16 and which is provided with spring pins 62 or the like, via which an electrical contact can be made to the lever arrangement 16 or the conductor tracks 64 assigned to the drive 14 when the lever arrangement 16 is attached to the drive 14 in the axial direction of the output shaft 56. While the removal device 60 in the illustration according to Fig. 18 attached to the drive 14, the removal device 60 is shown in the illustration according to Fig. 19 attached to the underside of the lever assembly 16.

[0056] In the Figs. 20 and 21 In the embodiment shown, a receiving device 66 is provided on the drive 14 or on the lever arrangement 16 for the purpose of transferring current from the lever arrangement 16 to the drive 14, in which a cable 68 is guided in a chamber with one or more loops. While the receiving device 68 in the illustration according to Fig. 20on the drive 14, it is shown in the illustration according to Fig. 21 provided on the underside of the lever assembly 16. Tangling of the cable 68 in the door profile or the like is impossible in this case. The receiving device 66 with the cable 68 can be delivered pre-assembled.

[0057] In the Figs. 22 and 23 a further embodiment of a door closer with a freewheel implemented in the drive 14 is shown, in which the means for transferring current from the lever arrangement 16 to the drive 14 comprise an extension 70 provided on the lever arrangement 16 with radially encircling conductor tracks 72 and a removal device 74 provided on the drive 14, which is provided with spring pins 76 or the like, via which an electrical contact to the conductor tracks 72 can be established when the lever arrangement 16 is placed on the drive 14. In the illustration according to Fig. 22the lever arrangement 16 is removed from the drive 14, while in the illustration according to Fig. 23 is placed on the drive 14.

[0058] Fig. 24 shows a further exemplary embodiment of a door closer with a freewheel implemented in the drive, in which the means for transferring power from the lever assembly 16 to the drive 14 comprise a pickup device 78 provided on the lever assembly 16, which is equipped with at least one spring pin 80 or the like, via which an electrical contact can be established with the respective conductor track provided on the drive 14 when the lever assembly 16 is placed on the drive 14. The pickup device 78 can be clipped into the drive 14.

[0059] The respective lever arrangement 16 of the various embodiments of the electric drive 10 according to the invention can in particular also comprise an additional lever which is provided with the power supply means of the lever arrangement 16 serving to supply power to the at least one electrical component assigned to the wing. List of reference symbols

[0060] 10 Electrical device 12 Wing 14 Drive 16 Lever arrangement 18 Slide rail 20 Slide block 22 Corrugated cable 24 Chamber 26 Spiral cable 28 Cable reel 30 Flex cable 32 Sliding contact 34 Cable 36 Recess 38 Recess 40 Slide block bolt 42 Spring plate 44 Spring pin 46 Spring pin 48 Drive plate 50 Drive pin 52 Spring pin 54 Conductor track 56 Output shaft 58 Cable 60 Pick-up device 62 Spring pin 64 Conductor track 66 Pick-up device 68 Cable 70 Extension 72 Conductor track 74 Pick-up device 76 Spring pin 78 Pick-up device 80 Spring pin a Electrical pole b Electrical pole

Claims

1. Electrical apparatus (10) for automatically opening, closing and / or locking a leaf / sash (12) of a door or of a window, in particular door closer, with a drive (14) associated with the leaf / sash (12) or a frame and a lever arrangement (16) provided between the drive (14) and the frame or leaf / sash (12) and used for the transmission of force, wherein the lever arrangement (16) comprises a lever that is provided with a sliding block (20) guided in a slide rail (18), and wherein the lever arrangement (16) comprises power transmission means for supplying power to at least one electrical component that is associated with the leaf / sash (12), of the apparatus (10), wherein the slide rail (18) comprises means for supplying power to the sliding block (20), and means for transferring power from the sliding block (20) to the lever arrangement (16) are provided, characterized in that the means for transferring power from the sliding block (20) to the lever arrangement (16) comprise a cable (34), wherein the cable (34) is guided in a corresponding recess (38) of the sliding block (20) by way of at least one turn and the sliding block (20) is able to be screwed to the lever, or the means for transferring power from the sliding block (20) to the lever arrangement (16) comprise a sliding block bolt (40) that is connected to the lever arrangement (16), is able to be clipped into the sliding block (20), and has separate electrical contact regions for the various electrical poles (a, b) with which spring plates (42) come into contact when the sliding block bolt (40) is clipped in, wherein an electrical contact region is directly connected to the electrically conductive main body of the lever arrangement (16), or the sliding block (20) is able to be screwed to the lever arrangement (16) and the means for transferring power from the sliding block (20) to the lever arrangement (16) comprise spring pins (46), as a result of which direct electrical contact is able to be established with the lever arrangement (16) by screwing the sliding block (20) to the lever arrangement (16).

2. Electrical apparatus according to Claim 1, characterized in that a corrugated cable (22), which is prestressed by a spring-loaded or elastic means, is guided in the slide rail (18) in order to supply power to the sliding block (20), wherein the cable (22) is preferably guided in a chamber (24) provided in the slide rail (18).

3. Electrical apparatus according to Claim 1, characterized in that a coiled cable (26) is guided in the slide rail (18) for supplying power to the sliding block (20).

4. Electrical apparatus according to Claim 1, characterized in that the means for supplying power to the sliding block (20) comprise a cable reel (28) that is in particular arranged behind the slide rail (18), and / or a flex cable (30) that is in particular guided in a chamber in the slide rail (18).

5. Electrical apparatus according to Claim 1, characterized in that the slide rail (18) is provided with sliding contacts (32) for supplying power to the sliding block (20).

6. Electrical apparatus according to one of the preceding claims, characterized in that means for transferring power from the lever arrangement (16) to the drive (14) are provided.

7. Electrical apparatus according to Claim 6, characterized in that, in the case of a door closer having a freewheel realized by way of a driver disc (48) that is arranged between the lever arrangement (16) and the drive (14), the means for transferring power from the lever arrangement (16) to the drive (14) comprise a spring pin (52) that is provided in a driver bolt (50) connected to the lever arrangement (16), wherein the spring pin (52) is in contact with a conductor track (54) attached to the drive (14) in order to transmit one electrical pole, while the electrically conductive main body of the lever arrangement (16) is directly connected to the electrically conductive output axis (56) of the drive (14) in order to transmit the other electrical pole.

8. Electrical apparatus according to Claim 6, characterized in that the output axis (56) of the drive (14) is hollow and the means for transferring power from the lever arrangement (16) to the drive (14) comprise a cable (58) guided through the hollow output axis (56).

9. Electrical apparatus according to Claim 6, characterized in that, in the case of a door closer having a freewheel realized in the drive (14), the means for transferring power from the lever arrangement (16) to the drive (14) comprise a pick-up apparatus (60) that is able to be attached to the drive (14) or to the lever arrangement and that is provided with spring pins (62) or the like, by way of which electrical contact is able to be established with the conductor tracks (64) associated with the lever arrangement (56) or the drive (14) when the lever arrangement (16) is placed on the drive (14) in the direction of the output axis (56), and / or a receiving apparatus (66) is provided on the drive (14) or on the lever arrangement (16) in order to transfer power from the lever arrangement (16) to the drive (14), in which receiving apparatus a cable (68) is guided in a chamber by way of one or more loops.

10. Electrical apparatus according to Claim 6, characterized in that, in the case of a door closer with a freewheel realized in the drive (14), the means for transferring power from the lever arrangement (16) to the drive (14) comprise an extension (70), which is provided on the lever arrangement (16), with radially circulating conductor tracks (72) and a pick-up apparatus (74) that is provided on the drive (14) and is provided with spring pins (76) or the like, by way of which electrical contact is able to be established with the conductor tracks (72) when the lever arrangement (16) is placed on the drive (14).

11. Electrical apparatus according to Claim 6, characterized in that, in the case of a door closer with a freewheel realized in the drive, the means for transferring power from the lever arrangement (16) to the drive (14) comprise a pick-up apparatus (78) that is provided on the lever arrangement (16), is able to be clipped into the drive (14) and is provided with at least one spring pin (80) or the like, by way of which electrical contact is able to be established with a respective conductor track provided on the drive (14) when the lever arrangement (16) is placed on the drive (14). .

12. Electrical apparatus according to at least one of the preceding claims, characterized in that the lever arrangement (16) comprises an auxiliary lever and this auxiliary lever is provided with the power transmission means of the lever arrangement (16) that are used for supplying power to the at least one electrical component that is associated with the leaf / sash.

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