EP0866262A2 - Electrically operated apparatus for spotlight - Google Patents

Abstract

The electrically operated spotlight unit is controlled by an electric motor and can have colour changing, dimming, and blinding facilities. The light may be a platform spot light tat has a holding device (30) that holds the illumination device up high. The preferably annular attaching piece is attached also to the spot light. The annular torsional element (32) has a hinge which may potentially act as a light spreading device (28) which is hingeable relative to the attachment piece (31). The electrical feed cable (39) for the unit is fixed at the part near the attaching element and at the part near the swivel component, but left free in between.

Description

The invention relates to an electrically operated device, in particular an electric motor-driven device, such as color changer, anti-dazzle flap, light blind or the like, for a spotlight, especially for a stage spotlight.

The device serves to influence light from the Headlights. It has a holding device for holding the device via a, preferably ring-like, fastening element is connectable to the headlight and the has a, preferably ring-like, rotating element which around one that runs in a potential light propagation direction Axis of rotation is rotatable relative to the fastener. The Fastening element and / or the rotary element encompass the Axis of rotation at least partially at a distance.

Devices of the aforementioned type are generally known. The Headlights are preferably between the two legs a U-shaped support frame around a horizontal axis pivoted. The support frame itself is vertical Axially pivoted. So that the headlight Align practically to any desired point. Often it is desirable to provide the holding device to the device or to be arranged at the light outlet of the headlight. The Holding device is usually rotatably mounted, namely one that runs in a potential light propagation direction Axis of rotation. If the device is operated electrically, it is necessary to make an electrical connection, preferably between the device on the rotatably mounted holding device and to manufacture the stationary headlight. Traditionally this electrical connection is made by a free sagging supply cable, which the rotation of the Holding device allowed relative to the headlight. The feed cable must have a length corresponding to the range of rotation. Because of this length, the feed cable can be annoying act, especially when the headlight is close above the Floor is arranged. There is then a risk that people especially stage workers, get stuck on the supply cable, or that when mounting the headlight the free hanging Part of the supply cable is damaged.

The object of the present invention is an electrical operated, in particular an electric motor driven, Device for influencing light from a headlight, especially from a stage spotlight at the beginning Specify the type mentioned, where possible with a supply cable is arranged outside in a trouble-free and space-saving manner.

This task is carried out by a facility with the characteristics of Claim 1 solved. Further training is the subject of dependent claims.

The device according to the invention for a headlight has a holding device which is used to hold the device a, preferably ring-like, fastener with the Headlight is connectable and the one, preferably ring-like, Has rotary element, which in one potential Direction of light propagation axis of rotation relative to the Fastener is rotatable. The fastener and / or the rotary element at least partially encompass the axis of rotation with distance. An electrical supply cable for the The device is fixed relative to a first cable section to the fastener and to a second cable section stationary relative to the rotating element. A third running approximately in the circumferential direction Section of cable that runs in the course of the cable between the first Cable section and the second cable section lies leads such at least at a cable point with the formation of a Reverse loop back in the reverse direction that at Rotation of the holding device the position of the reversing loop changes relative to the first and second cable sections.

The essence of the invention therefore lies in the fact that in Electrical supply cable running under circumferential direction Formation of a reverse loop attributed so that, under Change the relative position of the reverse loop to the stationary cable points on the fastening element or Headlights and on the rotating element, the rotating element against that Fastener is rotatable. So that the cable can back and forth in every rotational position in the circumferential direction stretch back. In particular, it does not have to be from Hanging device or hanging from the headlight to to allow twisting.

The predetermined reverse loop continues to prevent one Danger of compression of the cable, since the reversing loop varies depending on Rotational movement of the holding device moves with it. In particular, the cable can be clamped on the stationary Stage lights on the one hand and on the rotating stored holding device on the other hand so that the clamped ends in the same circumferential direction point.

In one embodiment of the invention, the feed cable is which is then preferably designed as a flat cable between the stationary stage spotlight and the rotating one mounted holding device arranged so that it from the outside is neither accessible nor visible. The arrangement of the cable takes place within a circumferential channel or channel section in Area of the pivot bearing between stage lights and Holding device.

Preferably, the third cable section, which is in the course of Cable between the first and the second cable section is deflected by a deflecting element approximately in the reverse direction or deflectable, the deflecting element along a guide on an outer circumference of the rotating element and / or the fastening element is so movable that in a continuous Range of rotational positions of the third section of cable is under tension.

Because of the guided deflection element, a channel-like one is closed Guided tour not necessary, if possible. Consequently can be carried out such that the movable third cable section is easily accessible, so that Feed cables can be easily replaced, for example can or only after attaching the holding device to the Headlights can be mounted. Because of the tension, under which the third cable section is located, is ensured that the third cable section has no unwanted loops forms and therefore jammed on parts of the device or hooked. In particular, it is possible to use all types of cables however, one in the third cable section is reversible bendable cable is to be used.

In a development of the device, the holding device an elongated, at least in one section reversible bendable transmission element for transmitting a tensile force the third cable section. The fastener is with connected to a first end of the transmission element. The Transmission element extends approximately in the circumferential direction on the outer circumference of the rotating element and / or the fastening element, is by a deflecting element movable along the guide deflected approximately in the reverse direction and is on a second End connected to the rotating element. That way it is Tension on the third cable section is particularly easy to apply. The transmission element and the third cable section can be in different spatial areas on the Outer circumference run, so that a disturbing friction of the transmission element excluded on the third cable section is.

The transmission element preferably contains an elastic element Tension element for applying tension. Very cheap it is when the pulling element is slightly spaced from the outer circumference arranged at one end of the transmission element is for a free, undisturbed change in length and thus ensuring the full functionality of the tension element is. The tension element is preferably one Coil spring. The tension element is the same due to its Elasticity changes in length, for example plastic Strains, the transmission element and the feed cable out. A coil spring is particularly advantageous because it can be obtained inexpensively and relative to yours Length in the relaxed state a large reversible Allows length change.

In one development, the rotary element has a rotary stop with which the second end of the transmission element connected is. The rotary stop therefore fulfills two functions. The rotary stop is preferably at a distance from the outer circumference arranged of the fastener on which the guide for the deflection element is formed. The rotation stop is there in the radial direction further away from the axis of rotation than that Outer circumference. An advantage of this configuration is good accessibility of the transmission element and thus ease of installation while ensuring the unhindered The holding device can be rotated.

The deflecting element for deflecting the feed cable and the deflecting element to redirect the transmission element can and be the same component. However, it is preferred that the deflecting element a first deflecting element for deflecting the feed cable is that the deflecting element for deflecting the transmission element is a second deflecting element and that the two deflection elements in the circumferential direction one behind the other and in are arranged in a fixed position relative to each other. By the distribution of the diverting functions over two diverting elements becomes easier to handle and easier to adjust to the properties, e.g. B. dimensions, coefficient of friction or the ability to bend the parts to be deflected.

A further development is preferred in which the deflecting element or at least one of the deflection elements with a deflection roller a groove for guiding the supply cable or the transmission element is. The supply cable or the transmission element can either roll on the groove without slipping, with Unroll slip or just slide in the groove, when the holding device rotates. Is a Expected slippage, a material is preferred for the guide roller, in particular a bearing material with which special Have low-friction surfaces produced. Low friction prevents wear and tear on the one hand significant noise development. It is preferred that the at least one deflection roller like this, preferably on a shaft, is rotatably mounted so that when the rotating element is rotated rolls on the guide. This previously applies to this rolling motion said accordingly.

It is favorable if the rotary element has a on its outer circumference in the circumferential direction, laterally walled groove-like Has tread that the guide for the deflecting element or Deflection elements is. The tread is preferably a smooth, especially polished, metal surface. Alternatively for this configuration there is an in in the tread Recess extending circumference through which the deflecting element is guided laterally. In the first alternative the production is particularly simple because, for example the tread through the outer circumference of an annular Plate is formed on the side wall of the tread coaxial two thinner, also circular plates with a larger outer radius.

In principle, the device according to the invention permits use of supply cables with any cross-section. Prefers however, becomes a feed cable that is called a flat cable is formed and which is arranged or can be arranged so that a flat side approximately in the third cable section extends along the guide, in particular the tread. With a suitable design of the deflecting element, for. B. in use a deflection roller, supports one arranged in this way or arrangable flat cable to guide you in the exercise of your Function.

Fig. 1

den wesentlichen Teil einer an dem Lichtaustritt eines nicht näher dargestellten Scheinwerfers drehbar gelagerten Haltevorrichtung in schematischer Draufsicht,

Fig. 2

die Konstruktion gemäß Fig. 1 im Schnitt längs der Linie A-A in Fig. 1 und

Fig. 3

die Haltevorrichtung gemäß Fig. 1 in einer gegenüber Fig. 1 geänderten Drehstellung.

Fig. 4

eine perspektivische Darstellung einer Haltevorrichtung eines zweiten Ausführungsbeispiels der Erfindung,

Fig. 5

eine weitere perspektivische Darstellung der Haltevorrichtung in Teilansicht und

Fig. 6

eine Seitenansicht zweier miteinander verbundener Umlenkrollen der Haltevorrichtung gemäß Fig. 4 und 5.

The invention is explained in more detail below with reference to the accompanying drawing. However, it is not limited to the exemplary embodiments shown in the drawing. The individual figures in the drawing show:

Fig. 1

the essential part of a holding device rotatably mounted on the light exit of a headlight, not shown, in a schematic plan view,

Fig. 2

the section of FIG. 1 in section along the line AA in Fig. 1 and

Fig. 3

1 in a changed rotational position compared to FIG. 1.

Fig. 4

2 shows a perspective illustration of a holding device of a second exemplary embodiment of the invention,

Fig. 5

a further perspective view of the holding device in partial view and

Fig. 6

a side view of two interconnected pulleys of the holding device according to FIGS. 4 and 5.

A first embodiment of the invention will now be described with reference to 1 to 3 are described.

The holding device 10 for influencing light from a Headlights, not shown, are used to hold one or several electrically operated devices, such as color changers, Dimming flaps, light blinds or the like that are also not shown.

A basic element of the holding device 10 is a ring 11, for example, a mounting plate can be mounted, the aforementioned facilities and with which these facilities are rotatable about an axis of rotation 20, which in FIGS. 1 and 3 is perpendicular to the image plane. On the headlight A circumferential tire 12 is arranged on the side of the ring 11, which has an E-shaped profile radially on the outside, the one circumferential groove 13 thus formed for receiving of at least three evenly over the circumference of the Light emission of the headlamp arranged in a distributed manner, in each case rotatably mounted, especially ball or needle bearing, Bearing rollers 15 is used. The other circumferential groove 14 is used Inclusion of a drive chain 16 or alternatively a drive belt, wherein the drive chain 16 with a pinion 17 one electric motor mounted on the headlight, in particular one Stepper or geared motor is coupled. So that take away of the ring 11 and thus the rotatable part of the holding device 10, is ensured by the drive chain 16, this is on at least one point with the ring 11 or with this connected tires 12 connected. At the same time, this fixation the chain an angle of rotation limitation for the holding device 10th

The holding device 10 and that in FIGS. 1 to 3 Mounting plate, not shown, have a central through opening 18 for the light from the headlights so that the holding device 10, the axis of rotation 20 completely at a distance embraces. In particular, the holding device 10 limits the light emission of the headlamp based on their circumference Arrangement in front of the headlight's light emission.

The electrical connection to the rotatable part of the electrical operated device is manufactured by a feed cable 19, which is designed as a flat cable. A section of the Feed cable 19 extends through one through the Holding device 10 formed circumferential channel 21, one flat side of the axis of rotation 20 faces. Another one each Cable section, in particular one end, is stationary relative to the stage spotlight, or to one with the Stage lights connected fastener, and to the rotatable part of the holding device 10 positioned, especially clamped. The axis of rotation of the holding device is in Figures 1 and 3 with the reference numeral 20th featured. This axis of rotation is preferably aligned with the optical axis of the stage spotlight.

Within the circumferential channel 21, the feed cable 19 is below Formed a reversing loop 24 placed so that it is without Risk of upsetting when the holding device 10 rotates is moved within the circumferential channel. The reverse loop 24 changes its position within the circumferential channel 21, in each case by about half the angle of rotation of the Holding device 10.

As can be seen from Fig. 2, forms on the Holding device 10 or its ring 11 arranged, in particular molded, tires 12 with the ring 11 radially an L-profile on the inside. This L-profile limits together with a complementary, fixed relative to the headlight arranged L-profile 26, the circumferential channel 21. The L-profile 26 extends over a circumferential angle that is the maximum Angle of rotation of the holding device 10 corresponds, for example over a circumferential angle of at least 180 ° to 270 °. By the complementary L-profile is the correspondingly long and peripheral channel 21 essentially closed on all sides formed for receiving the feed cable 19.

In Fig. 2 is also a piece of one designed as a front plate 27 Fastener to recognize that with the The headlight is connected and the aperture angle is like an aperture of the headlight defined. The L-profile 26 is attached to the front panel 27. The front panel 27 can either a component of the headlight, a separate one Component or part of the facility. Preferably the pinion 17 is also rotatably mounted on the front plate 27 and in this way, as well as that associated with the pinion 17 Drive, mounted on the front plate 27.

As FIG. 2 shows, the mirror images form those facing each other L profiles essentially closed on all sides Channel with rectangular or square Cross-section. The feed cable 19, which is designed as a flat cable is kept secure within this channel. Besides, will sufficient radial space for the formation of the mentioned Reverse loop 24 created.

The axial distance of the rotatably mounted holding device 10 from the front plate 27 is through the mentioned bearing rollers 15th guaranteed due to their placement in the in FIG upper circumferential groove 13.

Alternatively, the bearing rollers 15 can also be that of FIG. 2 be assigned to the lower circumferential groove 14. Then the Inclusion of the drive chain 16 within the upper circumferential groove 13.

It should also be noted that at the clamping points 22, 23 of the flat cable 19 this is folded over in each case such that the end portions of the flat cable are in one Angle of 90 ° to the flat cable within the plane extend the same.

In the described embodiment, a defined guidance of the supply cable closed by a cross section framed channel guaranteed. The channel prevented in particular evading the reverse loop to the outside and the associated disruptive effect mentioned at the beginning.

4 to 6, a second one, especially described preferred embodiment of the invention. All disclosed in connection with the first embodiment Characteristics come individually or in groups for one Combination with features of the second embodiment in Consider if such a combination makes sense. For example, the arrangement of Deflection rollers in a closed-edged channel according to FIG. 2 be arranged.

In the second embodiment, a defined guide for there is a movable section of a feed cable, the movable section being easily accessible.

The holding device 30 shown in FIG. 4 is for holding one electrically operated device can be used to influence of light from a headlight with the headlight is connectable. For this purpose, the octagonal ring 48 on Light emission of the headlights attached that he the one Light has a dimming effect all around. The octagonal Ring 48 is part of the fastener 31 or is with the fastener 31 when mounting the holding device 30 connectable. Four eight are shown uniformly in FIG Screw connections distributed over the octagonal ring 48 49 to an annular plate of the fastener 31. At the bottom of the holder 30, which in the assembled state faces away from the headlight Forms side of the holding device 30, which is electrical operated, not shown here, part of the device assembled. The electrically operated part can in particular be a Anti-glare flap that is opened by an electric motor or can be closed. The electrically powered part is connected to the rotating ring 32.

The rotating ring 32 surrounds one in a central potential Light propagation direction 28 rotating axis 20 all around in Distance. It is about the axis of rotation 20 relative to the fastener 31 rotatably mounted. For this purpose, the holding device has 30 an annular ring (not shown) between the fastening element 31 and the rotary ring 32 arranged rotary bearing, preferably a ball bearing. To drive a rotary movement can, for example, that described with reference to FIGS. 1 and 3 Drive arrangement can be used.

Introduces for the electrically powered part of the facility as a flat cable 39 supply cable from a connector 43 on the outer periphery of the fastener 31 along via a cable deflection roller 33 on which the flat cable 39 is deflected approximately in the reverse direction up to electrically operated part of the facility. In the illustration 4 and 5, the flat cable 39 ends at a rotary stop 47 in the right half of the picture. When fully assembled Device can for example one at this rotary stop 47 Strain relief for the flat cable 39 be attached. But it is also possible, the flat cable 39 fixed relative in another way to the rotating element 32 or to the electrically operated part to position the facility. In any case, however, points the feed cable, here the flat cable 39, a first cable section 40, where it is stationary relative to the fastener 31 is positioned, a second cable section 41, at which it is positioned in a fixed position relative to the rotary element 32 and a third cable section 42 which is used for rotary movements the holding device both relative to the fastener 31 and moved relative to the rotary ring 32 will be on.

The third cable section 42 is under tension in a continuous range of rotational positions. The tension is applied by a transmission element 36 formed from a pull cord 37 and a helical spring 38. Conversely, according to Newton's Axiom Actio, like Reactio , the third cable section 42 also exerts a tensile force on the transmission element 36 which causes a tension of the transmission element 36. The transmission element 36 is connected at its first end to the outer circumference of the fastening element 31. At its second end 45 it is connected to a rotary stop 47 which can be seen in FIGS. 4 and 5 in the left half of the figure. There, the helical spring 38 connects the rotary stop 47 to the end of the pull cord 37. In particular when using a pull cord 37 which is only slightly stretchable, an effective and yet simple guidance of the third cable section 42 is thus ensured. The tread 35 on which the flat cable 39, the transmission element 36 and the respective deflection roller 33; 34 are guided in the circumferential direction. In contrast to the already known embodiment of a generic device described at the outset, an external guide for the third cable section 42 is missing here. The function of such an external guide is taken over by the forces exerted on one another by the transmission element 36 and the flat cable 39.

The construction of the deflection rollers 33; 34 and their connection are described with reference to FIG. 6. The cable deflection roller 33 has a central, axial bore or recess in which a shaft 53 is arranged. The shaft 53 is at its ends each provided with an external thread, one on each Nut 52 is screwed on. One end protrudes a hole in a connecting plate 46 through to the side of the connecting plate facing away from the cable deflection roller 33 46. Similarly, the drawstring pulley 34 connected to the connecting plate 46. However, the right one, hidden nut 52 for mounting the cable pulley 33 within a recess formed in this arranged. The cable deflection roller 33 has a profile rectangular groove 50 for receiving the flat cable 39. The Drawstring pulley 34, however, has a conical profile tapering groove 51 for receiving the pull cord 37. By the groove 51 defined running level for the pull cord 37 divided the groove 50 in two approximately the same size, symmetrical to each other Halves, so that a perfect central guidance through the Drawstring 37 on the tread 35 (Fig. 5) is given. Out for this reason, the groove-like tread 35 only a small groove profile depth, d. H. the supernatant of the two Walls laterally on the tread 35 in the radial direction to the outside is small.

By the device according to the invention, in particular by the is particularly preferred embodiment described above reliable routing of a supply cable within of a defined spatial area over a continuous range of rotational positions of the device guaranteed. Due to the special construction of the Holding device of the device is handling, especially the assembly and maintenance, compared to the facility already known facilities simplified.

Reference list

10th

Holding device

11

ring

12th

tires

13

Circumferential groove

14

Circumferential groove

15

Storage role

16

Drive chain

17th

pinion

18th

Through opening

19th

Supply cable

20th

Axis of rotation

21

Circumferential channel

22

Cable clamping point on the headlight

23

Cable clamping point on the rotating element

24th

Reverse loop

25th

Direction of rotation

26

L-profile

27

Front panel

28

central potential Direction of light propagation

30th

Holding device

31

Fastener

32

Rotating ring

33

Cable pulley

34

Drawstring pulley

35

grooved tread

36

Transmission element

37

Pull cord

38

Coil spring

39

Flat cable

40

first cable section

41

second section of cable

42

third section of cable

43

Connector

44

first end

45

second end

46

Connecting plate

47

Rotary stop

48

Octagonal ring

49

Screw connection

50

Groove

51

Groove

52

mother

53

wave

54

wave

Claims (18)

Electrically operated device, in particular an electric motor-driven device, such as a color changer, dimming flap, light blind or the like, for influencing light from a spotlight, in particular from a stage spotlight, with a holding device (10, 30) which is used to hold the device via a, in particular ring-like fastening element (31) can be connected to the headlight and has a, in particular ring-like, rotating element (11, 12, 32) which is rotatable relative to the fastening element (31) about an axis of rotation (20) running in a potential light propagation direction (28), in particular driven by rotation, the fastening element (31) and / or the rotating element (11, 12, 32) extending at least partially at a distance around the axis of rotation (20),
characterized in that
an electrical supply cable (19, 39) for the device, which is stationary on a first cable section (22, 40) relative to the fastening element (31) and on a second cable section (23, 41) stationary relative to the rotating element (11, 12, 32) is positioned or can be positioned, in a third cable section (42) which runs approximately in the circumferential direction and which leads back in the reverse direction between the first (22, 40) and the second (23, 41) cable section, forming a reversing loop (24), that when the holding device (10, 30) rotates, the position of the reversing loop changes relative to the first (22, 40) and relative to the second (23, 41) cable section. Device according to claim 1,
characterized in that
the feed cable (19) is designed as a flat cable and extends into the third cable section with the flat side approximately parallel to the axis of rotation (20) of the holding device (10). Device according to claim 1 or 2,
characterized in that
the feed cable (19) extends within a circumferential channel (21) formed between the holding device (10) and the stage spotlight. Device according to claim 3,
characterized in that
the holding device (10) comprises a mounting ring (11) and a mounting plate mounted thereon with a central through opening (18) for the light exit. Device according to one of claims 1 to 4,
characterized in that
a pivot bearing between the stage spotlight and the holding device (10) by means of a tire (12) arranged on the holding device (10) on the one hand and by at least three bearing rollers (15) arranged on the stage spotlight in association with the tire (12) and evenly distributed over its circumference and which can be unrolled thereon on the other hand - or vice versa - is formed. Device according to claim 5,
characterized in that
the tire (12) arranged on the holding device (10) is designed radially on the outside as an E-profile, the one circumferential groove (13) for receiving the at least three bearing rollers (15) and the other circumferential groove (14) for receiving a drive chain (16 ) or a drive belt, which is coupled to a pinion (17) or a drive pulley of an electric motor mounted on the stage spotlight, in particular a stepping or geared motor. Device according to claim 5 or 6,
characterized in that
the tire (12) arranged on the holding device (10) is formed radially on the inside as an L-profile, which, in the assembled state of the holding device (10), has an L-profile (26), which is mounted upside down on the stage spotlight around its light outlet, the peripheral channel (21 ) for receiving the supply cable (19) limited. Device according to claim 7,
characterized in that
the L-profile (26) which extends around the light exit on the stage spotlight is a profile section which extends over a circumferential angle which corresponds to the maximum angle of rotation of the holding device (10), in particular over an angle of at least 180 ° to approximately 270 °, so that a correspondingly long and essentially closed peripheral channel (21) for receiving the supply cable (19) is defined, so that the reversing loop (24) of the supply cable (19) within the peripheral channel (21) without constraint can follow the rotational movement of the holding device (10). Device according to one of claims 1 to 8,
characterized in that
the third cable section (42) is deflected or can be deflected by a deflection element (33) to form the reversing loop, and that the deflection element (33) along a guide (35) on an outer circumference of the rotating element (32) and / or the fastening element (31) is movable such that the third cable section (42) is under tension in a continuous range of rotational positions. Device according to claim 9,
characterized in that
the holding device (30) has an elongated, at least in one section reversibly bendable transmission element (36) for transmitting a tensile force to the third cable section (42), that the fastening element (32) is connected to a first end (44) of the transmission element (36) and that the transmission element (36) extends approximately in the circumferential direction, is deflected approximately in the reverse direction by a deflection element (34) movable along the guide (35) and is connected at a second end (45) to the rotary element (32). Device according to claim 10,
characterized in that
the transmission element (36) contains an elastic tension element (38) for applying the tension. Device according to claim 11,
characterized in that
the tension element (38) is a coil spring. Device according to one of claims 10 to 12,
characterized in that
the rotary element (32) has a rotary stop (47) to which the second end (45) of the transmission element (36) is connected. Device according to one of claims 10 to 13,
characterized in that
the deflecting element (33) according to claim 9 is a first deflecting element, that the deflecting element (34) according to claim 10 is a second deflecting element and that the two deflecting elements (33; 34) are arranged one behind the other in the circumferential direction and in a fixed position relative to one another. Device according to one of claims 9 to 14,
characterized in that
the deflection element (33) according to claim 9 or at least one of the deflection elements (33; 34) according to claim 14 is a deflection roller with a groove (50; 51) for guiding the supply cable (39) or the transmission element (36). Device according to claim 15,
characterized in that
the at least one deflecting roller is rotatably mounted, preferably on a shaft (53; 54), that it rolls on the guide (35) when the rotating element (32) is rotated. Device according to one of claims 9 to 16,
characterized in that
the rotating element (32) has on its outer circumference a circumferential groove-like, laterally walled running surface which is the guide (35) for the deflecting element or the deflecting elements (33; 34). Device according to claim 17,
characterized in that
the feed cable (39) is designed as a flat cable which can be arranged or arranged such that a flat side extends approximately along the running surface in the third cable section (42).

Images