Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
  • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
  • H03K17/945—Proximity switches
  • H03K17/955—Proximity switches using a capacitive detector
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F15/00—Power-operated mechanisms for wings
  • E05F15/70—Power-operated mechanisms for wings with automatic actuation
  • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
  • E05Y2400/80—User interfaces
  • E05Y2400/85—User input means
  • E05Y2400/856—Actuation thereof
  • E05Y2400/858—Actuation thereof by body parts, e.g. by feet
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
  • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
  • E05Y2900/53—Type of wing
  • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
  • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
  • H03K17/945—Proximity switches
  • H03K2017/9455—Proximity switches constructional details
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
  • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
  • H03K2217/96—Touch switches
  • H03K2217/9607—Capacitive touch switches
  • H03K2217/960755—Constructional details of capacitive touch and proximity switches
  • H03K2217/96078—Sensor being a wire or a strip, e.g. used in automobile door handles or bumpers

Definitions

• the invention relates to a switching element for non-contact activation of an electromotive adjusting drive of a motor vehicle.
• the electromotive adjustment drive is suitably an electric motor operated tailgate.
• the invention further relates to an electric motor operated tailgate and a method for creating a non-contact switching element.
• motor vehicles increasingly include electrically operated Versteilantriebe.
• a side sliding door of a motor vehicle and tailgates are operated by an electric motor.
• the sliding door or the tailgate is used as adjusting part and this is spent upon activation of the adjustment in an open or closed position.
• an approach of the user to the motor vehicle is usually monitored by means of near field sensors, and the motor vehicle is unlocked when the user approaches it.
• the activation of the adjustment by means of a non-contact sensor that detects movement of the user.
• a manual operation of the adjustment is not required, so that the tailgate or sliding door can also be opened if the user can not use his hands for this, for example because it carries a load.
• the adjusting element activating the adjustment drive in this case usually comprises a capacitive sensor with an electrode.
• This capacitive sensor is usually arranged in the region of a rear bumper of the motor vehicle, which is why an approach of the user to the tailgate can be detected.
• the switching element is mounted in a lower portion of the body, so that movement of a foot of the user is detected as an activation signal.
• the switching element is relatively exposed unprotected splash water and other weather conditions, which reduces reliability of the switching element.
• comparatively many manufacturing steps for the creation of the switching element are required because a wide variety of materials must be joined together, thus increasing manufacturing costs.
• a mounting on the motor vehicle is comparatively time consuming.
• the invention has for its object to provide a particularly suitable switching element for non-contact activation of an electric motor Versteilantriebs a motor vehicle and a particularly suitable electric motor-operated tailgate and a particularly suitable method for creating a switching element, advantageously reduced manufacturing costs and preferably a reliability is increased.
• the switching element is used for non-contact activation of an electromotive adjustment drive and is particularly suitable, provided and / or set up for this purpose.
• the switching element is preferably a component of the electromotive Versteilantriebs.
• the electromotive adjustment drive has an electric motor and an adjustment part which can be moved along the adjustment path by means of the electric motor.
• the adjusting part is for example a side door of a motor vehicle, for example a sliding door.
• the adjustment part is particularly preferably a tailgate, and the electromotive adjustment drive is thus an electric motor operated tailgate.
• the switching element is a user input or a user request, but at least a user activity, detected and changed in response to this a current to the electric motor.
• the electric motor activated depending on the switching element. Consequently, no contact is required for the activation of the electromotive Versteilantriebs.
• the electromotive adjustment drive is activated if an approach of a user to a specific location by means of the switching element is detected, wherein the switching element itself is not touched. In this case activation is understood in particular to mean a change in the energization and / or adjustment of the adjustment drive.
• the switching element itself has a profile strip extending in a longitudinal direction.
• the profiled strip has the greatest extent in the longitudinal direction, and expediently the profiled strip always has the same cross-section perpendicular to the longitudinal direction or at least 80% of the extent, 90% of the extent or 95% of the extent of the same cross-section.
• the profiled strip has a channel extending in the longitudinal direction, whose extension in the longitudinal direction is expediently equal to the extent of the profiled strip. In other words, the profile strip over its full extension in the longitudinal direction of the channel.
• the channel itself has, for example, a round or a rectangular, expediently a square or substantially square cross section.
• the channel merges into a slot extending in the longitudinal direction, wherein the slot preferably has the same extent in the longitudinal direction as the channel.
• the profile strip on the slot over the entire length in the longitudinal direction.
• the profile strip is a hollow profile strip, and thus has, for example, a (closed) chamber, which further reduces weight.
• the profile strip is in one piece. This increases robustness and lowers manufacturing costs.
• the electrode comprises an electrically conductive element, which consists for example of copper or aluminum.
• the electrically conductive element is, for example, electrically insulated or not.
• the profile strip preferably serves as a geometric base and for fixing the electrode, which serves in particular as a sensor and / or antenna.
• the electrode is expediently a component of a near-field sensor and / or a capacitive sensor and serves to detect a Approximation of a user to the switching element, for example, a distance between 1 m and 10 cm, between 20 cm and 50 cm and, for example, a distance of substantially 30 cm +/- 10 cm, 5 cm is detected.
• the switching element comprises a control unit, by means of which the signals detected by means of the electrode are evaluated and analyzed. In particular, a change in a dielectric constant in the vicinity of the electrode is thus detected.
• the electrode is for example by means of a line with the control unit
• the electrode is directly connected to a circuit board of the control unit, and in particular held on this.
• the electrode is soldered to the printed circuit board or connected by pressfit contacts.
• the switching element consists of the electrode and the profile strip.
• the switching element has a comparatively small number of components, as a result of which manufacturing costs are reduced. Also, assembly is facilitated because the electrode can be inserted into the channel by means of the slot over substantially the entire length of the channel, rather than having to be threaded longitudinally into the channel, for example. It is also possible to design the profile strip comparatively robust so that, when the electrode is mounted in the channel, damage to the profile strip, in particular in the area of the slot, can be substantially ruled out.
• the electrode has a longitudinally extending, electrically conductive core, by means of which, in particular, the functioning of the electrode is provided.
• this is preferably provided peripherally with an electrical insulation.
• the core is thus surrounded on its outer surface with the electrical insulation, wherein the boundary is determined in a direction perpendicular to the longitudinal direction.
• the outer circumference of the core is always surrounded by a cross-section perpendicular to the longitudinal direction by means of electrical insulation.
• the electrical insulation forms the peripheral boundary of the electrode. Consequently, a wire can be used as the electrode, which further reduces manufacturing costs.
• the electrical insulation is suitably a plastic.
• the soul is in particular in one piece or formed for example by means of a number of different strands.
• the cross section of the soul is, for example, round or angular.
• the electrically conductive core is a flat conductor.
• the core is a wire, a strand or a bundle of wires or strands.
• the electrode is manufactured in one step, which is independent of the production of the profile strip.
• the electrode and the profile strip are two separate components that are mounted together to create the switching element.
• the electrode is made of an enameled wire, such as copper enameled wire, or consists of the enameled wire.
• the extent of the slot perpendicular to the longitudinal direction is equal to the extent of the channel perpendicular to the longitudinal direction.
• the slot is flush with the channel on both sides.
• the channel expediently has a rectangular or square cross section perpendicular to the longitudinal direction.
• the extent of the slot perpendicular to the longitudinal direction is smaller than the extent of the channel perpendicular to the longitudinal direction.
• the extent of the slot is less than 50%, 30%, 20% or 10% of the extent of the channel.
• the extent of the slot perpendicular to the longitudinal direction is smaller than the extent of the electrode perpendicular to the longitudinal direction.
• the extent of the slot is less than 50%, 40%, 30%, 20% or 10% of the extension of the electrode.
• the slot is preferably widened, in particular elastically, and the electrode is inserted into the channel through the widened slot. Following this, the slot is again reduced in size, which is done independently, for example, due to the elasticity. Alternatively, the slot is reduced again manually or by means of a tool during assembly. As a result, the electrode is comparatively efficiently protected against mechanical influences, whereby assembly is simplified.
• the Slot provided an undercut, which conveniently holds the electrode in the assembled state within the channel.
• the slot opens centrally in the channel.
• the channel extends perpendicular to the longitudinal direction on both sides of the slot.
• the slot is offset to the center, and is preferably located at an edge of the channel.
• the channel has a substantially square or rectangular cross-section perpendicular to the longitudinal direction and one of the corners is formed in particular by means of the slot.
• the channel is substantially cuboid-shaped and the slot forms one of the edges of the channel. In this way, a detachment of the electrode from the channel is relatively efficiently prevented, whereby assembly is facilitated because the boundary surface of the channel adjacent to the slot can be pivoted by a comparatively large amount for mounting.
• the profile strip is designed flat and has two extending in the longitudinal direction of narrow sides and an extending in the longitudinal side and an upper side extending in the longitudinal side.
• the extent of the upper side perpendicular to the longitudinal direction is greater than the extent of the narrow sides perpendicular to the longitudinal direction.
• the extent of the underside perpendicular to the longitudinal direction is greater than the extent of the narrow side perpendicular to the longitudinal direction.
• the extent of the upper side / lower side perpendicular to the longitudinal direction is greater than twice, three times, four times or ten times the extent of the narrow sides perpendicular to the longitudinal direction.
• the extent of the two narrow sides perpendicular to the longitudinal direction is substantially equal.
• the extent of the upper side perpendicular to the longitudinal direction is equal to the extension of the lower side perpendicular to the longitudinal direction.
• the profile strip is designed essentially cuboid. In this way, an assembly on the motor vehicle is simplified. Also, a production and storage of the profile strip is simplified.
• the top has the slot.
• the electrode is inserted from the top of the profile strip ago in the channel for mounting.
• the profile strip is made flexible. Due to the enlarged extent of the top perpendicular to the longitudinal direction is simplified in this way a mounting, provided that the profile strip is designed to be flexible. Also, the profile strip can be obtained comparatively stable during assembly in this way.
• the underside has a fastening means for mounting on a body of the motor vehicle.
• the fastening element is provided for the reversible or irreversible attachment of the profile strip to the body.
• the attachment means is for example an adhesive strip.
• the fastening means is designed such that an adhesive is received, by means of which the profile strip is glued to the body.
• the fastening means is provided by means of ribs for toothing with the adhesive.
• the profile strip is glued to the body.
• the fastening means is a clip or a latching element, so that the profile strip is clipped or latched to the body for mounting.
• the switching element is connected to the body by means of the fastening means for mounting.
• the profile strip comprises at the bottom of the fastener and at the top of the slot. In this way, the electrode can be mounted on the profile strip, if it is already attached to the body. It is also possible to replace the electrode if it is damaged.
• the profile strip has a longitudinal slot extending in the longitudinal direction.
• the slot is used for mounting on the body of the motor vehicle and is therefore provided and set up for this purpose.
• a bolt or a clip is passed through the slot, with a head of the screw / bolt / clip rests on the profile strip.
• the end of the bolt / bolt / clip projecting through the slot is fastened to the body for mounting. Due to the design of a slot tolerance compensation is possible during assembly, which simplifies installation.
• the profile strip comprises a second channel, which also extends in the longitudinal direction, and which merges into a running in the longitudinal direction of the second slot.
• the second channel is preferably identical in construction to the channel and in particular spaced therefrom, the distance being for example between 1 mm and 10 mm, 2 mm and 5 mm and in particular equal to 3 mm.
• the slot is preferably identical to the second slot. In this way, a production of the profile strip is simplified.
• the electrode is bent in a U-shape and lies in the second channel. In other words, the electrode is in both the channel and in the second channel.
• the U-shaped end is suitably over the profile strip, so that a one-piece electrode can be used, which is bent suitable for mounting.
• the electrode is made in this case in the manner of a wire and / or the electrode is made by the meter.
• the electrode is suitably deflected suitably and first introduced into the channel. Following this, the electrode is bent in the region of the exit from the profile strip and inserted into the second channel. In other words, the electrode is looped. In this way, an enlarged monitoring range is provided by means of the electrode and a susceptibility to interference due to electromagnetic interference fields is reduced.
• the profile strip has a third channel running in the longitudinal direction, which merges into a third slot running in the longitudinal direction, and within which a second electrode is arranged.
• the third channel is preferably identical to the channel or to the second channel, and / or the third slot is preferably identical to the slot or second slot, which simplifies manufacture.
• the second electrode is in particular identical to the electrode.
• the switching element has two electrodes, which is why a direction of movement of a movement of the user can be detected. In this way, different functions of the electromotive adjustment drive can be activated by means of the switching element.
• the profile strip comprises a fourth channel, within which the second electrode also rests, which is suitably bent in a U-shape.
• the profile strip preferably has four such channels, each of which merges into the respectively assigned slot.
• the profile strip comprises up to eight such channels, and, for example, one electrode in each case lies in four channels.
• the profile strip has four electrodes.
• the profile strip is made of a plastic or a rubber. In this way, a comparatively inexpensive creation of the switching element is possible.
• the electrode is relatively safe protected due to the profile strip.
• the plastic and / or the rubber are flexible, flexible and / or elastic designed.
• the slot can be made comparatively small and insertion of the electrode in the channel is still possible.
• An attachment of the profile strip on the curved body part of the motor vehicle is also possible.
• the slot is preferably widened and the electrode is introduced into the channel, wherein this is expediently carried out by means of a tool, which is produced in particular in the manner of a window sherbet (pane spring).
• the tool has a substantially trapezoidal section, the more ready end of which is located inside the channel and the narrower end of which is outside the channel. Through the trapezoid, the electrode passes through, so that upon movement of the tool in the longitudinal direction, the electrode is inserted into the channel.
• the profile strip is created in an injection molding or extrusion process.
• the profile strip is created by the meter and then cut to length to the desired length, sawed or cut off, for example. From the meterware several profile strips can be created, which further reduces manufacturing costs.
• the switching element is suitably used as a near field sensor.
• the switching element is used to activate the electromotive Versteilantrieb, wherein the actuation of the switching element takes place without contact.
• Activation is understood in particular to mean the beginning of an adjustment movement of the adjustment part and / or the execution of an adjustment movement.
• the adjusting part is preferably brought into an open or in a closed position.
• the electric motor operated tailgate comprises a switching element for non-contact activation.
• the switching element has a profile strip extending in a longitudinal direction, which comprises a channel extending in the longitudinal direction, which merges into a slot extending in the longitudinal direction, wherein an electrode is arranged within the channel.
• the electric motor operated tailgate comprises a control unit which is electrically and / or signal technically coupled to the electrode.
• the control unit sensor signals of the electrode are detected and processed.
• a near field sensor and / or a capacitive sensor is provided by means of the control unit and the electrode.
• a provision / generation of a control signal for the electric motor wherein the control signal is adjusted in dependence of the sensor signal, which is determined by means of the electrode.
• current is supplied to the electric motor by means of the control unit.
• the method for creating a switching element provides that in a first step, a profile strip made of a plastic or a rubber is created in an injection molding or extrusion process.
• the plastic or rubber is pressed in particular by a template in the longitudinal direction, wherein the template has a portion, by means of which a channel and a slot is created. Consequently, the profile strip has a longitudinally extending channel, which merges into a slot extending in the longitudinal direction.
• an electrode is inserted through the slot in the channel and preferably fixed there.
• the insertion takes place in particular by hand or by means of a robot.
• a tool is used in particular, by means of which expediently the slot is widened elastically and in particular in the same working step the electrode is introduced into the channel.
• a fastening means is attached to the profile strip, for example applied an adhesive strip.
• the connection of the fastener is carried out when creating the profile strip in the extrusion process.
• a number of oblong holes, but at least one oblong hole, are introduced into the profiled strip following the extrusion process, for example punched or drilled.
• the switching element is mounted on a body of the motor vehicle, such as a bumper.
• the fastener is used and / or the profile strip is advantageously glued to the body part.
• the profile strip is cut to a specific length prior to assembly on the motor vehicle.
• the length is in this case particularly adapted to the motor vehicle and is expediently between 30 cm and 1, 50 m, 50 cm and 1 m, wherein the length denotes the extension in the longitudinal direction.
• the profile strip is produced in the extrusion process with a length greater than 1 m, 2 m or 3 m, which reduces manufacturing costs.
• the profile strip is by the meter.
• the cutting is done, for example, before the electrode has been inserted into the slot.
• the electrode is inserted into the cut profile strip.
• the electrode is first introduced into the piece goods and subsequently cut to length, which further reduces production time.
• FIG. 9 shows a further embodiment of the switching element of FIG. 2 and
• Fig. 1 is a simplified simplified representation of a motor vehicle 2 with an electric motor operated tailgate 4, which is thus an electric motor Versteilantrieb.
• the electric motor operated tailgate 4 has a flap 6, which is mounted by means of a hinge 8 pivotally mounted on a body 10 of the motor vehicle 2.
• the electric motor operated tailgate 4 further includes an electric motor 12 which is also secured to the body 10.
• An adjustable-length adjusting part 14 is driven by means of the electric motor 12, which is fastened on the one hand to the flap 6 and on the other hand to the body 10. Consequently, by operation of the electric motor 12, the flap 6 can be pivoted from an open to a closed and from a closed to an open position.
• the control of the electric motor 12 by means of a control unit 16, which is technically and electrically connected to the electric motor 12. In this case, the energization of the electric motor 12 is adjusted by means of the control unit 16.
• the electric motor operated tailgate 4 comprises a switching element 18 which is fixed to the inside of a rear bumper 20 of the body 10.
• the switching element 18 is signal technically coupled to the control unit 16 and operates on a capacitive principle. If a user 22 moves his foot in the area of the bumper 20 with the foot remaining away from the body 10, this is detected by means of the switching element 18 due to a change in the dielectric constant around the bumper 20. This sensor signal is evaluated by the control unit 16 and interpreted as a user input or user request. Following this, the electric motor 12 is energized, so that the flap 6 is pivoted. In other words, the switching element 18 is used for non-contact activation of the electric motor-driven tailgate 4.
• the switching element 18 is shown in perspective and in Fig. 3 in a sectional view perpendicular to a longitudinal direction 24.
• the switching element 18 comprises a profile strip 26 which is made of a plastic or a rubber in an extrusion process.
• the profiled strip 24 has a substantially cuboid cross-section with two narrow sides 28 extending in the longitudinal direction 24, whose extent perpendicular to the longitudinal direction 24 is 2mnn.
• the profile strip 26 comprises a top 30 and a bottom 32 which extend in the longitudinal direction 4 and whose extension is perpendicular to the longitudinal direction 24 equal to 26mm. Consequently, the profile strip 26 is configured flat.
• the profiled strip 26 also has a channel 34 whose cross-section perpendicular to the longitudinal direction 24 is square with an edge length of 2 mm.
• the channel 34 extends in the longitudinal direction 24 and extends over the entire length of the profiled strip 26 in the longitudinal direction 24.
• the channel merges into a running in the longitudinal direction 24 slot 36, which has the top 30.
• the extent of the slot perpendicular to the longitudinal direction 24 is 0.5 mm, so that the extent of the slot 36 perpendicular to the longitudinal direction 24 is smaller than the extent of the channel 34 perpendicular to the longitudinal direction 24.
• the slot 36 is located substantially in the center of an edge of the substantially square cross-section of the channel 24 facing the surface 30.
• the channel 34 is spaced substantially 1 mm from one of the narrow sides 28.
• the profiled strip 26 furthermore has a second channel 38 running in the longitudinal direction 24, which merges into a second slot 40 extending in the longitudinal direction 24.
• the second channel 38 is identical to the channel 34, and the second slot 40 and its arrangement with respect to the second channel 38 corresponds to the slot 36 and its arrangement with respect to the channel 34.
• the distance between the second channel 38 and the channel 34 is 3mm.
• the profiled strip 26 comprises a third channel 42 extending in the longitudinal direction 24, which merges into a third slot 44 extending in the longitudinal direction 24, and a fourth channel 46 extending in the longitudinal direction 24, which merges into a fourth slot 48 running in the longitudinal direction 24.
• the third channel 42, the third slot 44 and the fourth channel 46 and the fourth slot 48 are identical to the channel 34 and to the slot 436 and their respective arrangement.
• the distance between the third channel 42 and the fourth channel 46 is 3 mm, and the fourth channel 46 is 1 mm away from the narrow side 28, which is farthest from the channel 34. Consequently, the arrangement of the third channel 42 as well as the third slot 44 and the fourth channel 46 and the fourth slot 48 corresponds to the Order of the channel 34 and the slot 36 and the second channel 38 and the second slot 40, but these are assigned to different narrow sides 28.
• an electrode 50 is arranged, which has a substantially circular cross-section, and whose diameter corresponds to 2mm. Consequently, the extent of the slot 36 perpendicular to the longitudinal direction 24 is smaller than the extent of the electrode 52.
• the electrode 50 exits from the profiled strip 26 and has a U-shaped bend 52, so that the electrode from the channel 34 is guided to the second channel 38.
• the electrode 50 also emerges from the profile strip 24 and is contacted there with the control unit 16 electrically.
• the electrode 50 is attached directly to a printed circuit board of the control unit 16 and contacted with this electrically, for example, medium soldering or Pressfit contacts.
• the electrode 50 is electrically contacted to the control unit 16 by means of a further line, not shown.
• the electrode 50 has, with the exception of the bend 52, an electrically conductive core 53 which extends in the longitudinal direction 24 and consists of a copper.
• the core 53 is circumferentially surrounded by an electrical insulation 54, which surrounds the soul 53 thus envelope-shaped.
• a wire 52 a wire can be used, which reduces manufacturing costs.
• a second electrode 56 is arranged, which is identical to the electrode 50 and consequently also has the bend 52. Furthermore, the second electrode 56 is also electrically connected to the control unit 16.
• the underside 32 has an adhesive strip 58, so that the profile strip 24 is glued in the assembled state with the bumper 20.
• the profile strip 26 has three longitudinal holes 24 extending in the longitudinal direction 60, which are located in the region between the second and third channel 38,42. In the assembled state 60 clips or screws are arranged within the slots.
• a modification of the profile strip 26 is shown, which substantially corresponds to the previous embodiment. Only the slot 36, the second Slot 40, the third slot 44 and the fourth slot 48 are modified, but continue to extend in the longitudinal direction 24. The channel 34, the second channel 38, the third channel 42 and the fourth channel 46, however, are not changed. The slots 36, 40, 44, 48 are now arranged in such a way that they are arranged on the edge of the respective channel 34, 38, 42, 46 and thus essentially form an edge of the cuboid channels 34, 38, 42, 48.
• the distance between the slot 36 and the second slot 40 is equal to 3mm and between the third slot 44 and the fourth slot 48 also equal to 3mm.
• profile strip 26 a further embodiment of the profile strip 26 is shown. Compared to the previous embodiment, the profile strip 26 between the second channel 38 and the third channel 42 extending in the longitudinal direction 24 cuboid open recess 62, which reduces the weight of the profile strip 26 and increases their flexibility.
• a further embodiment of the profiled strip 26 is shown, wherein also here the channels 34,38,42,46 are left unchanged.
• the open recess 62 is also present.
• the slots 36,40,44,48 are widened and each have an extension perpendicular to the longitudinal direction 24 of 2mm.
• the slots 36,40,44,48 are aligned with the respective channel 34,38,42,46 and thus do not constitute an undercut.
• Centered between the channel 34 and the second channel 38 is an open second recess 64 and between the third channel 42 and the fourth channel 46, an open third recess 66 is present, so that the profile strip 26 has a substantially comb-shaped cross-section perpendicular to the longitudinal direction 24.
• the profile strip 26 has a comparatively low weight and increased flexibility.
• FIGS. 7 and 8 show two further embodiments of the profiled strip 26, which are a modification of the embodiment shown in FIG.
• the cross section of the channel 34, the second channel 38, the third channel 42 and the fourth channel 46 is changed and circular.
• the cross section of all channels 34, 38, 42, 46 is the same.
• the diameter in the embodiment shown in FIG. 7 is between 1.5 mm and 2.0 mm and in the embodiment shown in FIG. see 2.0mm and 3.0mm.
• the slot 36, the second slot 40, the third slot 44 and the fourth slot 48 are unchanged, as well as their position with respect to the respective channel 34, 38, 42, 46th
• FIG. 9 a further embodiment of the switching element 18 is shown in FIG. 2, wherein the profiled strip 26 is left unchanged.
• the second electrode 56 is omitted, and in the channel 34, the second channel 38, the third channel 42 and the fourth channel 46, there is the electrode 50 having three bends 52.
• the ends of the electrode 50 emerging from the channel 34 and the fourth channel 46 are electrically contacted to the control unit 16.
• FIG. 10 shows a method 68 for producing the switching element 18.
• the profile strip 26 is created by means of an extrusion process made of a plastic or a rubber.
• a template for creating the profile strip 26 is used, the appropriate areas for the channels 34,38,42,46 and the slots 36,40,44,48 and, depending on the configuration, for the recesses 62 and 64 and 66 has , The plastic or rubber is pressed in the longitudinal direction 24 through the template.
• the profiled strip 26, which after the extrusion process has a length of, for example, 2 m or 3 m and is therefore sold by the meter, is cut to the length shown in FIG. 2, so that it is 50 cm long , In other words, four separate profile strips 26 are created from the sold by the meter.
• the electrode 50 and the second electrode 56 are provided. These have substantially twice the length of the profile strip 26 in the longitudinal direction 24 plus 20cm +/- 5cm.
• the electrode 50 is inserted into the channel 34 and the second channel 38, and the second electrode 56 is inserted into the third channel 42 and the fourth channel 46.
• a so-called disc or window bead is used, which has a substantially trapezoidal opening. The widened end is moved longitudinally within the respective channel 34,38,42,46, wherein within the trapezoid, the respective electrode 50,56 is arranged.
• the electrode 50 is inserted into the extruded profile strip 26, wherein the electrode 50 has the electrically conductive core 53 and the electrical insulation 54 and expediently consists of these.
• the electrode 50 has the electrically conductive core 53 and the electrical insulation 54 and expediently consists of these.
• the mounting principle of the electrode 50,56 essentially corresponds to that of a disc spring, wherein the assembly is done for example by hand, by means of a mounting aid or by means of a robot.
• the profile strip 26 is created by the meter and cut to the appropriate length depending on the design.
• the mounting of the switching element 18 by means of adhesive, wherein, for example, the adhesive tape or an applied adhesive is used.
• clips are inserted into the integrated slots 60. Since comparatively few steps are required for assembly, costs are reduced. Also, a lifetime is increased because no sealing points must be created. Also, a comparatively low weight of the switching element 18 is realized.

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