ELECTRIC SWITCH WITH WALLPAPER COMPENSATION

Description

[0001] The invention relates to an electrical switch operable with a key card. This switch comprises a pushbutton insert comprising electrical connection contacts, electrical switching elements, and a rocker switch. The rocker switch serves to operate the electrical switching elements. The pushbutton insert can be mounted in a mounting opening by means of a support ring. The support ring can be supported in a mounting plane on an edge region of the mounting opening. A cover frame can also be placed on the support ring. Furthermore, the electrical switch comprises a rocker support and a cover assembly. The rocker support is connected to the rocker switch. The cover assembly has an insertion channel for an inserted key card.The rocker support extends into the insertion channel in such a way that, when the key card is inserted in an insertion direction parallel to the mounting plane, the key card can contact the rocker support in such a way that the rocker support executes a mechanical switching movement. This transfers the mechanical switching movement to the rocker switch. The insertion channel is designed such that, when the key card is correctly inserted, the key card can be arranged within the insertion channel in an insertion plane that extends parallel to the mounting plane.

[0002] It is common practice for such electrical switches to be installed in electrical installation boxes in buildings. Such electrical switches are often used in hotels and apartments, particularly in door or entrance areas. Inserting the key card activates a switch, which enables certain functions, such as the power supply.

[0003] The key cards and the electrical switch often also have a security feature that serves as proof of authorization for the desired function. For example, such security devices are based on radio-frequency identification (RFID) technology, particularly a near-field communication (NFC) standard. The use of magnetic strips is also a common security feature. An authorization feature, such as a code, is usually stored on the key card, which is queried or read by a reading device in the electrical switch.

[0004] When the key card is inserted into the insertion channel, a switching element within the electrical switch is moved to a first switching position. This switching position can, in particular, create a permanent electrical contact for the time the key card is inserted into the electrical switch, or only a temporary contact.

[0005] Since electrical switches are known to be installed at different times during a building's construction phases, for example, directly during construction or following a renovation, the electrical switches are regularly mounted on different surfaces, particularly wallpaper, bare walls, painted walls, or plastered walls. This leads to the problem that the support ring of the push-button insert is often mounted at a different level than the top layer of the wall, which is raised, for example, by wallpaper. A cover frame, which serves to visually enhance and protect the electrical switch and surrounds the electrical switch, often rests on the raised top layer of the wall, resulting in a height offset that varies depending on the installation location.A negative consequence is that the electrical switch is not accessible in every installation location, as a large height offset makes it difficult or impossible to insert the key card.

[0006] To overcome the disadvantages of height offset, electrical switches with a so-called "wallpaper compensation" are known.

[0007] DE 10 2008 052 524 A1, for example, discloses an electrical switch for use with a key card, which ensures the insertion and function of the electrical switch in conjunction with the key card, even in the event of a height offset. For this purpose, the key card is inserted into the insertion channel at an angle to the wall. A special support ring has a cantilever arm with a slope so that the key card is guided against a rocker when inserted, causing a mechanical switching movement. Wallpaper compensation is achieved by angle compensation using the cantilever arm. Furthermore, the cover frame is merely placed on the support ring but not fastened, so that the cover frame can be arranged at a variable height on the support ring. This means that the cover frame can adapt to a height offset.However, it has been shown that users of an electrical switch intuitively insert the key card parallel to the wall when inserting the key card into the slot. Therefore, there is potential for improvement, particularly with regard to the feel when inserting the key card and the appearance of the electrical switch, as well as the frequently desired parallel insertion direction to the wall.

[0008] Another electrical switch for use with a key card and wallpaper leveling device is known from DE 44 46 790 A1. In this case, the key card is also inserted into a slot in the electrical switch at an angle to the wall. A cover frame and a cover assembly are slidably mounted relative to a frame enclosed by the cover assembly, which frame has a switching lever. The cover assembly and the frame each have conical card insertion openings that overlap and thus enable wallpaper leveling. In addition to the insertion direction, which is at an angle to the wall and is in need of improvement, the card is bent out of an insertion plane when inserted, so that the key card is stressed with each insertion process and when inserted.

[0009] The invention is based on the object of providing an electrical switch for use with a key card, which overcomes the disadvantages known from the prior art, in particular enabling improved function and / or operation while providing wallpaper compensation.

[0010] The object is achieved according to the invention by the features of claim 1 in that the cover assembly and the rocker support are arranged on the pushbutton insert by means of a frame-shaped clamping piece such that the distance of the insertion plane from the rocker support is independent of the distance of the cover frame from the support ring. Advantageously, the distance of the insertion plane from the mounting plane with respect to a perpendicular bisector of a support ring opening enclosed by the support ring is thus variably adjustable within a tolerance distance in a preferred manner.

[0011] The design and arrangement of the clamping piece according to the invention makes it possible to compensate for a height offset between a "low" wall area, which is, for example, in a "raw" untreated state and in which the mounting opening is located, and a "raised" wall area, which is, for example, wallpapered. In particular, this prevents a height offset between the cover frame and the rocker support or the cover assembly. Advantageously, the clamping piece enables the rocker switch to be mounted so that it can rotate about a switching axis and the rocker support so that it can rotate about a rotation axis. Advantageously, the rocker support can be decoupled from the rocker switch with its rotation axis and arranged at a distance along the perpendicular bisector of the support ring opening. The switching axis and the rotation axis expediently run parallel to each other.In particular, it is to be provided that the switching axis and the rotation axis are arranged one behind the other with respect to the perpendicular bisector of the support ring opening, so that a compact and space-saving structure is provided.

[0012] In an advantageous embodiment of the invention, the clamping piece has a straight bearing web for pivotably supporting the rocker support. Advantageously, the bearing web forms the axis of rotation for the rocker support, so that the axis of rotation is displaced by the same amount when the clamping piece is displaced along the perpendicular bisector of the support ring opening, in particular within the tolerance distance. The bearing web preferably intersects the perpendicular bisector of the support ring opening and runs in particular parallel to one side of the frame of the clamping piece.

[0013] The rocker support advantageously has a clamping geometry facing the stylus insert for arrangement on the clamping piece. In an advantageous embodiment, the clamping geometry is designed such that it is or can be clipped onto a bearing surface of the bearing web in an at least form-fitting manner and is pivotably mounted about the bearing web. This advantageously provides a bearing that secures the arrangement of the rocker support on the clamping piece and simultaneously provides the axis of rotation for the rocker support. It has also proven advantageous, particularly for maintenance and assembly, if the form-fitting arrangement of the clamping geometry on the bearing surfaces is designed so that it can be removed non-destructively.

[0014] In practice, it has proven useful for the rocker support to be connected to the switching rocker in at least a force-locking manner to transmit the switching movement. This is achieved, for example, by the switching rocker having projections designed as hollow profiles on a side facing the rocker support. Advantageously, the rocker support has profile extensions on an underside facing the projections of the switching rocker, which are arranged in the projections with an excess length so that they can be moved longitudinally. During a mechanical switching movement, a force-lock connection is advantageously created between the profile extensions of the rocker support and the projections of the switching rocker designed as hollow profiles, whereby the mechanical switching movement can be transmitted from the rocker support to the switching rocker.By means of the oversize and the longitudinally movable arrangement between the profile extensions and the lugs, the rocker support can be displaced relative to the switching rocker along the perpendicular bisector of the support ring opening in such a way that the transmission of the mechanical switching movement is ensured at least within the tolerance distance.

[0015] According to a preferred variant of the electrical switch, the clamping piece has a frame shape adapted to the shape of the pushbutton insert. A rectangular shape, viewed along the perpendicular bisector of the support ring opening, has proven advantageous. In particular, clamping extensions projecting toward the pushbutton insert are formed in the frame corner areas of the clamping piece, by means of which clamping extensions the clamping piece can be clamped to the pushbutton insert. For the purpose of servicing and assembling the electrical switch, the clamping extensions of the clamping piece and the pushbutton insert are designed in such a way that the clamping piece can be detached from the pushbutton insert without causing damage, or the clamping fixation between the clamping extensions and the pushbutton insert can be released.

[0016] In particular, the support ring opening is designed as a four-sided polygon, with the respective polygon sides connected to each other in corner regions. The sensing insert is expediently designed and arranged in the support ring opening in such a way that the sensing insert has openings in at least two corner regions of the support ring opening for clampingly receiving the clamping extensions.

[0017] By means of the clamping extensions, the clamping piece is or can be fixed to the stylus insert in the inserted state in a force-fitting manner in the corner areas. For this purpose, it has proven advantageous that screws and / or bearing pins can be inserted or inserted and / or screwed or screwed into the clamping extensions for radially spreading the clamping extensions. In this regard, a special embodiment provides that the clamping extensions are expediently hollow cylindrical and preferably dowel-like. For clamping, it has proven advantageous that the clamping extensions have an upper opening so that, for example, a screw or a bearing pin can be expediently inserted into the clamping extension pointing towards the stylus insert. The insertion results in particular in a spreading of the hollow cylindrical clamping extensions, so that an advantageous fixation of the clamping piece to the stylus insert can be achieved.To ensure the security of the fixation and to prevent unintentional removal of the clamping piece, for example due to theft, the screw used to spread the clamping process can have a force application with a special profile, so that a specially designed release tool is necessary for loosening.

[0018] In a particular embodiment of the invention, the cover assembly comprises a four-sided frame-like base cover with a central opening. In particular, the central opening of the base cover is arranged with a central axis coaxial with the perpendicular bisector of the support ring opening. Furthermore, the central opening of the base cover is expediently penetrated by the rocker support so that the rocker support can be mechanically actuated. In particular, when inserted in the insertion direction, the key card can advantageously contact the rocker support protruding through the central opening of the base cover such that the rocker support executes the mechanical switching movement.

[0019] For the arrangement of the base cover, it has also proven advantageous for the base cover to have a recess in at least one corner area facing the probe insert and arranged coaxially with one of the clamping extensions of the clamping piece for passing through the screw for spreading the clamping extensions. The screws can expediently be passed through the recess, or alternatively, both the clamping piece in the probe insert and the base cover can be connected to the clamping piece at the same time by means of the screw passed through the recess. In particular, an advantageous arrangement of the base cover and the clamping piece is provided in that the base cover has recesses for passing through a screw, arranged coaxially with two of the clamping extensions of the clamping piece in two diagonally offset corner areas.

[0020] Preferably, as an alternative to the recesses for passing the screw through to spread the clamping extensions, or in addition thereto, the base cover has a bearing pin formed in at least one of the corner regions or in at least one further corner region, which bearing pin points towards the probe insert and is arranged coaxially with a clamping extension of the clamping piece. This bearing pin is expediently formed integrally with the base cover on the base cover. The bearing pin is designed in particular such that it is inserted or can be inserted into one of the clamping extensions of the clamping piece. In particular, the bearing pin serves to mount the base cover on the clamping piece. Alternatively or additionally, the bearing pin is designed in such a way that the respective clamping extension is spread when the bearing pin is inserted, so that the clamping piece is fixed to the probe insert.In particular, the bearing pin simplifies the assembly of the electrical switch by fixing the base cover to the clamping piece by placing the base cover on the clamping piece in the direction of the push button insert, whereby the clamping piece is advantageously fixed to the push button insert at the same time.

[0021] It has proven particularly advantageous if the base cover has recesses arranged coaxially in two diagonally offset corner areas to two of the clamping extensions of the clamping piece for the passage of the screws and / or bearing pins arranged coaxially in two diagonally offset corner areas to two of the clamping extensions of the clamping piece for spreading the clamping extensions. This design expediently provides a preferred fixation of the base cover and the clamping piece. In particular, a design which has both two diagonally offset recesses for the passage of the screws and two diagonal bearing pins is preferable for particularly advantageous positional security.

[0022] In order to ensure that the mechanical switching movement of the rocker support is reliably initiated by inserting the key card to be inserted, the rocker support preferably has at least one lever element that rises in a ramp-like manner in the insertion direction. The lever element expediently projects from the rocker support to the side facing away from the button insert, advantageously protruding into the insertion channel. In particular, the lever element projects into the insertion channel in such a way that when the key card to be inserted is inserted, the rocker support executes the mechanical switching movement, preferably against a restoring force. When the key card is inserted into the insertion channel in the insertion direction, the key card expediently comes into contact with the lever element, the ramp-like shape of the lever element ensuring that the key card does not tilt.By further moving the key card in the insertion direction, the rocker support is mechanically moved, in particular pivoted about its axis of rotation, so that the rocker support transmits a mechanical switching movement to the rocker switch.

[0023] In a further embodiment of the electrical switch, the cover arrangement has a cover insert. The rocker support is expediently arranged between the clamping piece and an underside of a base wall of the cover insert that forms the insertion channel and extends parallel to the mounting plane. In particular, in a special embodiment, the insertion channel is delimited by the base cover in the direction facing the key insert and by the cover insert in the direction away from the key insert. The cover insert expediently provides secure guidance for the key card to be inserted. It has also proven advantageous if the cover insert has a frame-like insertion opening facing against the insertion direction, wherein the insertion channel expediently adjoins the insertion opening in the insertion direction.

[0024] In particular, the base wall of the cover insert has at least one opening designed as a through-opening. The opening and the rocker support are preferably designed such that the rocker support partially protrudes into the through-opening or through the through-opening when the key card to be inserted is not inserted. It has been found that it is preferable for the rocker support with the lever member to protrude into the through-opening or through the through-opening. In particular, the design has the consequence that the rocker support, in particular with the lever member, forms a barrier for the key card to be inserted, which barrier can be opened by means of the key card to be inserted by sliding the key card in the insertion direction against the rocker support, in particular against the lever member.When the key card to be inserted is inserted far enough into the insertion channel in the insertion direction that it comes into contact with the rocker support, the rocker support is mechanically displaced, in particular pivoted about its rotation axis. In particular, this opens the barrier formed by the rocker support, allowing the key card to be inserted further into the insertion channel in the insertion direction. At the same time, a mechanical switching movement of the rocker support is advantageously transmitted to the switching rocker.

[0025] The cover assembly preferably has a front cover. The front cover covers, in particular, the cover insert, the base cover, the rocker support, the clamping piece, and the pushbutton insert. The front cover expediently has a visually appealing front surface that faces away from the pushbutton insert.

[0026] In particular, the front cover also has an insertion opening arranged coaxially with the insertion channel for passing the key card to be inserted. Preferably, the cover insert is held or can be arranged between the base cover and the front cover. Furthermore, the cover insert is expediently arranged in or on the front cover such that the insertion opening of the cover insert and the insertion opening of the front cover are aligned with one another.

[0027] For the arrangement of the front cover, a snap-in connection between the front cover and the base cover and / or between the front cover and the cover insert has proven particularly effective. For the arrangement of the cover insert on the front cover, an optional bearing geometry formed on the base wall has proven particularly effective. This bearing geometry is formed, in particular, opposite the insertion channel on the base wall, with the bearing geometry expediently being designed to ensure positive and / or non-positive mounting on the front cover.

[0028] In particular, it is advantageous for the front cover to have a groove on a front surface facing away from the push-button insert. This groove is expediently used for arranging, in particular clamping, a cover. The cover can be designed, in particular, for arranging a nameplate or a room number or a functional designation of the electrical switch, for example, "power switch." In particular, it has proven particularly expedient for the groove to be designed such that it intersects the perpendicular bisector of the support ring opening and runs parallel to one side of the clamping piece.

[0029] According to one embodiment of the invention, the clamping piece and the cover arrangement, in particular the front cover, the cover insert and the rocker support, each have a light guide or an opening. In particular, the light guides or the openings in the respective elements are designed and arranged coaxially to one another on the perpendicular bisector of the support ring opening such that they transmit light from a light source formed in the button insert. For example, a ready signal or function signal of the electrical switch can be made available to a user by means of the light. Furthermore, the electrical switch can be designed such that a key card inserted correctly in the insertion channel activates the light guides orthe openings of the rocker support and the clamping piece are covered so that it is immediately recognizable that a key card is arranged in the insertion channel of the electrical switch.

[0030] It has also proven particularly advantageous that the light guide or the opening in the front cover is formed within the groove for the aperture. In particular, the aperture is at least partially translucent, so that a light signal from the light source formed in the key insert can be visually perceived from the outside through the aperture.

[0031] In particular, compatibility between the electrical switch and a cover frame is improved by an adapter frame. The adapter frame is preferably arranged between the cover assembly and the support ring. The adapter frame expediently has a central adapter opening through which the rocker support protrudes.

[0032] Further advantageous embodiments of the invention emerge from the following description of the figures and the dependent subclaims.

[0033] They show: Fig. 1 is an exploded view of an embodiment of an electrical switch according to the invention with a cover frame, Fig. 1A is a detailed view of the area D according to Fig. 1 , Fig. 2 a sectional view of the electrical switch with the cover frame according to Fig. 1 and an inserted key card along a perpendicular bisector of a support ring in an insertion direction of the key card to be inserted, and Fig. 3 a sectional view along the parting plane A - A according to Fig. 2 .

[0034] In the various figures of the drawing, identical parts are always provided with the same reference symbols.

[0035] Fig. 1shows an electrical switch 100 which can be operated with a key card 102. The electrical switch 100 has a push button insert 104. The push button insert 104 comprises electrical connection contacts, electrical switching elements and a switching rocker 110, as shown in particular in the Fig. 2 and 3 The rocker switch 110 is designed such that it can contact the electrical switching elements. In particular, the rocker switch 110 contacts the electrical switching elements to close an electrical circuit.

[0036] The probe insert 104 can be mounted in a mounting opening by means of a support ring 112. The mounting opening is not shown. The support ring 112 can be mounted in a mounting plane M on an edge area of ​​the mounting opening. The support ring 112 expediently has, as shown in Fig. 1shown, openings 114, which allow the support ring 112 to be screwed to the edge area of ​​the mounting opening. Alternatively or additionally, the support ring 112 can also be connected or glued to the edge area of ​​the mounting opening in a material-to-material manner, in particular by means of an adhesive. The cover frame 116 is, as shown in the Fig. 2 and 3 shown, designed to be placed on the support ring 112.

[0037] The electrical switch 100 further comprises a, particularly in the Fig. 1 and 3 recognizable, rocker support 118. The rocker support 118 is connected to the switching rocker 110, which is located in the button insert 104. To operate the electrical switch 100, the inserted key card 102 is used. The electrical switch 100 expediently has a, in Fig. 1shown, cover assembly 120. For inserting the key card 102 to be inserted, the cover assembly 120 has an insertion channel 122 which is open at least on one side.

[0038] The rocker support 118 protrudes into the insertion channel 122. When the key card 102 to be inserted is inserted, the key card 102 can actuate the rocker support 118 such that the rocker support 118 executes a mechanical switching movement. Preferably, the rocker support 118 executes the mechanical switching movement against a restoring force. The restoring force can be generated by an elastic element, for example a plastic or a metallic spring. In particular, the key card 102 displaces the rocker support 118 by contact of the key card 102 with the rocker support 118, so that the rocker support 118 is mechanically actuated or displaced. Fig. 2 and 3It is shown how the key card 102 is inserted into the insertion channel 122 in a functionally correct manner, ie in particular up to an end stop 124. The key card 102 can be inserted into the insertion channel 122 in an insertion direction E parallel to the mounting plane M.

[0039] The rocker support 118 is connected to the switching rocker 110 in such a way that the mechanical switching movement which the rocker element performs as a result of the, in particular mechanical, actuation by means of the key card 102 to be inserted is transmitted to the switching rocker 110. As shown in the Fig. 2 and 3As shown, the insertion channel 122 is designed such that the key card 102 can be arranged in a functionally correctly inserted state in an insertion plane within the insertion channel 122. The insertion plane S extends user-friendly parallel to the mounting plane M, so that the key card 102 to be inserted is always parallel to the mounting plane M, both during insertion and in the inserted state, and in particular is aligned straight and unbent or arranged in the insertion channel 122.

[0040] According to the invention, the cover arrangement 120 and the rocker support 118 are connected by means of a, in particular in Fig. 1shown, frame-shaped clamping piece 126 is arranged on the key insert 104. The embodiment according to the invention provides that the distance of the insertion plane S from the rocker support 118 is independent of the distance of the cover frame 116 from the support ring 112. In particular, the distance of the insertion plane S to the mounting plane M is variably adjustable within a tolerance distance. The distance of the insertion plane S to the mounting plane M is measured according to the invention with respect to a perpendicular bisector X of a support ring opening enclosed by the support ring 112. In the Fig. 2 and 3 an insertion distance is shown, which is formed within the tolerance distance and describes the distance of the insertion plane S to the mounting plane M.

[0041] The Fig. 2 and 3show an embodiment according to the invention, wherein there is no height offset between a "low" wall section in the area of ​​the support ring 112 and a raised wall section in the area of ​​the cover frame 116.

[0042] Preferably, the rocker switch 110 is rotatably mounted about a rocker switch axis 130, with the rocker switch support 118 expediently being rotatably mounted about a rotation axis 132. In a preferred, compact embodiment of the invention, the rocker switch axis 130 and the rotation axis 132 extend parallel to one another and are arranged one behind the other with respect to the perpendicular bisector X of the support ring opening.

[0043] According to a variant of the invention, the clamping piece 126, as shown in Fig. 1shown, a straight bearing web 134 for pivotably supporting the rocker support 118. In particular, an advantageous arrangement is achieved in that the bearing web 134 intersects the perpendicular bisector X of the support ring opening and is designed to run parallel to a frame side 136 of the clamping piece 126. The bearing web 134 expediently defines the axis of rotation 132 of the rocker support 118 such that when the clamping piece 126 is displaced along the perpendicular bisector X of the support ring opening, the rocker support 118 and its axis of rotation 132 are displaced to the same extent.

[0044] A preferred mounting of the rocker support 118 provides that the rocker support 118 has a clamping geometry 138 facing the key insert 104. The clamping geometry 138 is particularly Fig. 1shown. The clamping geometry 138 is preferably designed such that it is clipped or can be clipped onto a bearing surface 140 of the bearing web 134 in an at least form-fitting manner, in particular in a non-destructive manner, and is pivotably mounted about the bearing web 134. Preferably, the rocker support 118 can be non-destructively removed and reassembled from the clamping piece 126, in particular by means of the clamping geometry 138.

[0045] The rocker support 118 and the switching rocker 110 are expediently connected at least frictionally to transmit the switching movement. It has proven particularly advantageous that, according to a particular embodiment, the switching rocker 110 has projections 142 formed as hollow profiles on a side facing the rocker support 118. The projections 142 formed as hollow profiles are particularly suitable in Fig. 1Advantageously, the rocker support 118 has profile extensions 144 on an underside facing the lugs 142 of the switching rocker 110, shown in Fig. 1 and 2 . The profile extensions 144 are designed in particular to interact with the projections 142 of the rocker switch 110. The profile extensions 144 are advantageous, as shown in Fig. 2 indicated, arranged or can be arranged in the lugs 142 with an excess to allow longitudinal movement.

[0046] In particular, the clamping piece 126, as shown in Fig. 1shown, formed in a frame shape adapted to the form of the key insert 104, wherein the frame sides 136 of the clamping piece 126 surround a clamping piece opening 145. In the frame corner regions 146 of the clamping piece 126, clamping extensions 148 are preferably formed, which project from the clamping piece 126 in the direction of the key insert 104. The clamping extensions 148 are expediently formed such that by means of the clamping extensions 148 the clamping piece 126 can be clamped and fixed to the key insert 104 and in particular can be released without damage. Preferably, the clamping extensions 148 are formed such that the clamping piece 126 can be released from the key insert 104 without damage and can be reassembled.

[0047] According to the Fig. 1The support ring opening and in particular the clamping piece 126 are preferably designed as a four-sided polygon. The support ring opening has four polygon sides, which are connected to one another in corner regions 152 and surround the support ring opening. The sensing insert 104 is expediently designed and arranged in particular in the support ring opening such that the sensing insert 104 has openings 150 in at least two corner regions 152 of the support ring opening for clampingly receiving the clamping extensions 148 of the clamping piece 126.

[0048] As in Fig. 1As shown, the clamping piece 126 preferably has at least one, in particular two, stiffening webs 154. The stiffening webs 154 extend in particular from a frame side 136 of the clamping piece 126 perpendicular to the bearing web 134, wherein the stiffening webs 154 are advantageously connected to the bearing web 134. It has proven advantageous for the stiffening webs 154 to be formed centrally on their respective frame side 136 of the clamping piece 126, so that the stiffening webs 154, together with the bearing web 134, divide the clamping piece opening 145 into four quadrants, in particular quadrants of equal size.

[0049] The clamping extensions 148 serve, in particular, to non-positively fix the clamping piece 126 to the probe insert 104. Screws and / or bearing pins are expediently inserted or insertable and / or screwed or screwed into the clamping extensions 148 for radially spreading the clamping extensions 148. For this purpose, the clamping extensions 148 are preferably hollow-cylindrical, in particular dowel-like.

[0050] Accordingly Fig. 1AIt is advantageous for the clamping extensions 148 to have an upper opening 156 so that a screw or a bearing pin can be inserted into the clamping extension 148 pointing in the direction of the probe insert 104. The insertion results in particular in a spreading of the hollow cylindrical clamping extensions 148, so that an advantageous fixation of the clamping piece 126 to the probe insert 104 can take place. The hollow cylindrical clamping extensions 148 have in particular a longitudinally slotted peripheral wall. The slots 158 extend towards the probe insert 104, with preferably two mutually opposite slots 158 being formed in the peripheral wall. By means of the longitudinally extending slots 158, in particular a radial spreading of the clamping extensions 148 for clamping fixation to the probe insert 104 is improved.

[0051] In a special, advantageous in Fig.1AIn the illustrated embodiment of the clamping piece 126, a cylindrical section 160 adjoins the opening 156 of the respective clamping extension 148 facing the probe insert 104. Advantageously, the cylindrical section 160 merges into a clamping section 162 that increases in diameter. The clamping section 162 is preferably designed such that, when the clamping piece 126 is mounted on the probe insert 104, a positive force connection is achieved between the clamping section 162 of the respective clamping extension 148 and the probe insert 104. The clamping extension 148 advantageously has, in the clamping section 162, a ramp-like rise 164 starting from the cylindrical section 160 facing the probe insert 104 and / or a ramp-like rise 166 starting from its end facing the probe insert 104 in the direction away from the probe insert 104.The clamping extension 148 in the clamping section 162 expediently has a maximum diameter in a region which is spaced from the cylindrical section and from the end facing the probe insert 104, wherein, starting from the maximum diameter, the diameter of the clamping extension 148 decreases in a ramp-like manner toward the cylindrical section 160 and toward the end facing the probe insert 104. The ramp-like rises 164, 166 of the clamping extension 148 advantageously reduce tilting during assembly or disassembly of the clamping piece 126 to the probe insert 104. In particular, the clamping extensions 148 can be advantageously inserted into or removed from the respective opening 150 formed on the probe insert 104 for receiving the respective clamping extension 148 by means of the ramp-like rises 164, 166.

[0052] As in Fig. 1As shown, the clamping piece 126 preferably has adjustment projections 168 on at least one frame side 136, in particular on a polygon side. Fig. 1 The clamping piece 126 shown corresponds to a special design and has four adjusting projections 168. In particular, the adjusting projections 168 are formed on both sides of the stiffening web 154. Advantageously, the adjusting projections 168, as shown in Fig. 2As shown, radially outwardly pointing, in particular in the direction of a cover frame 116 to be mounted, have bevels 170 which interact with optionally correspondingly designed beveled surfaces 172 which can be formed in the region of an inner opening edge of the cover frame 116. The adjusting lugs 168 or the bevels 170 expediently interact with the cover frame 116, in particular the beveled surfaces 172 in the region of the inner opening edge, in such a way that the clamping piece 126 can be aligned with the cover frame 116 via the adjusting lugs 168 and the beveled surfaces 172.

[0053] Furthermore, the adjustment projections 168 can be designed according to a further developed embodiment, as shown in the Fig. 1 and 2shown, have extension arms 174 which project radially inward from the respective frame side 136, in particular the respective polygon side of the clamping piece 126. The extension arms 174 expediently have at their radially inwardly facing ends, as shown in Fig. 2 As shown, a locking surface 176 facing the key insert 104, which can preferably be engaged behind by a correspondingly designed locking arm 178 of the cover assembly 120, in particular a base cover 180 of the cover assembly 120. Advantageously, the locking surface 176 and the locking arm 178 ensure that the cover assembly 120 is locked to the clamping piece 126.

[0054] The basic coverage 180 is in particular, as in Fig. 1shown, is designed in a four-sided frame-like manner with a central opening. The opening in the base cover 180 is expediently penetrated by the rocker support 118. Preferably, the central opening of the base cover 180 is arranged with a central axis coaxial with the perpendicular bisector X of the support ring opening such that the rocker support 118 can be mechanically actuated. In particular, when inserted in the insertion direction E, the key card 102 can advantageously contact the rocker support 118 protruding through the central opening of the base cover 180 such that the rocker support 118 executes the mechanical switching movement.

[0055] In a particular embodiment, the base cover 180 has, in at least one corner region, a recess 182 facing the probe insert 104 and arranged coaxially with one of the clamping extensions 148 of the clamping piece 126 for passing through the screw for spreading the, in particular hollow-cylindrical, clamping extension 148. By means of the screw guided through the recess 182, both the clamping piece 126 in the probe insert 104 and, at the same time, the base cover 180 can be fixed to the clamping piece 126. In particular, for an advantageous arrangement, the base cover 180 has recesses 182 arranged coaxially with two of the clamping extensions 148 of the clamping piece 126 in two diagonally offset corner regions 152.

[0056] Alternatively, it may be advantageous to design the recesses 182 such that the screws for spreading the clamping extensions 148 can be guided merely through the recess 182, whereby the base cover 180 is not fixed to the clamping piece 126. In particular, the respective recess 182 has a diameter that is larger than the largest diameter of the screw used. This advantageously allows the clamping piece 126 to be decoupled from the base cover 180, whereby a connection between the clamping piece 126 and the base cover 180 can be established, for example, by means of the extensions 174 of the adjusting lugs 168 and the locking arms 178.

[0057] Preferably, the base cover 180 has, as an alternative to the recesses 182 for passing through the screw for spreading the clamping extensions 148 or in addition thereto, in at least one of the corner regions or in at least one further corner region, a bearing pin 184 pointing towards the probe insert 104 and arranged coaxially with a clamping extension 148 of the clamping piece 126. In Fig. 1 an advantageous embodiment of the clamping piece 126 is shown, according to which, for spreading the clamping extensions 148, recesses 182 are formed in two diagonally offset corner regions 152 coaxially arranged to two of the clamping extensions 148 of the clamping piece 126 for passing through the screws and bearing pins 184 are formed in the respective two other diagonally offset corner regions 152 coaxially arranged to two of the clamping extensions 148 of the clamping piece 126.

[0058] The bearing pin 184, shown in Fig. 1, integrally formed with the base cover 180 on the base cover 180. The bearing pin 184 is particularly designed such that it is inserted or can be inserted into one of the clamping extensions 148 of the clamping piece 126. In particular, the bearing pin 184 serves to support the base cover 180 on the clamping piece 126. Alternatively or additionally, the bearing pin 184 is designed such that the respective clamping extension 148 is spread apart when the bearing pin 184 is inserted.

[0059] According to a preferred embodiment of the electrical switch 100, the rocker support 118, as shown in the Fig. 1 and 3shown, at least one lever member 186 which rises in a ramp-like manner in the insertion direction E from the key insert 104. The lever member 186 protrudes, particularly when the key card 102 to be inserted is not inserted, through the insertion plane S in such a way that it advantageously protrudes into the insertion channel 122. Advantageously, the key card 102 to be inserted can therefore contact the rocker support 118 when inserted in the insertion direction E into the insertion channel 122 in such a way that the rocker support 118 executes the mechanical switching movement against the restoring force. The key card 102 expediently contacts the rocker support 118 by means of a contact with the lever member 186, wherein the ramp-like shape of the lever member 186 ensures that the key card 102 does not tilt.By further moving the key card 102 in the insertion direction E, the rocker support 118 is mechanically moved, in particular pivoted about its axis of rotation 132, so that the rocker support 118 transmits a mechanical switching movement to the switching rocker 110.

[0060] According to a further variant of the electrical switch 100, the cover assembly 120 has a cover insert 188. The cover insert 188 is particularly Fig. 1 The rocker support 118 is advantageously arranged between the clamping piece 126 and an underside forming the insertion channel 122 of a base wall 190 of the cover insert 188 extending parallel to the mounting plane M, as shown in Fig. 3 In particular, the cover insert 188, as shown in the Fig. 1 and 3shown, a frame-like insertion opening 192 pointing against the insertion direction E, wherein the insertion channel 122 expediently adjoins the insertion opening 192 in the insertion direction E. A special embodiment also provides that the insertion channel 122, in a special embodiment, is delimited in the direction pointing towards the key insert 104 by the base cover 180 and in the direction away from the key insert 104 by the cover insert 188.

[0061] In order to improve the switching function when inserting the key card 102, the cover insert 188 preferably has at least one opening formed as a through-opening 194. The Fig. 1The exemplary embodiment shown has, in particular, three access openings 194. The at least one access opening 194 and the rocker support 118 are expediently designed such that the rocker support 118 partially protrudes into the access opening 194 or through the access opening 194 when the key card 102 to be inserted is not inserted.

[0062] Advantageously, the access opening 194 and the rocker support 118 are designed such that the rocker support 118, in particular with the lever member 186, forms a barrier for the key card 102 to be inserted, which barrier can be opened by means of the key card 102 to be inserted by displacing the key card 102 in the insertion direction E against the rocker support 118, in particular against the lever member 186. In the Fig. 3a state is shown in which the key card 102 to be inserted is inserted in the insertion direction E into the insertion channel 122 until it has contacted the lever member 186 in such a way that the rocker support 118 has been pivoted mechanically about its axis of rotation 132 so that the barrier formed by the lever member 186 is opened and the key card 102 can be inserted further in the insertion direction E into the insertion channel 122 until it has contacted the Fig. 3 At the same time as the barrier is released or the rocker support 118 is pivoted, it is advantageous, as shown in Fig. 3 As indicated, the mechanical switching movement of the rocker support 118 is transferred to the switching rocker 110.

[0063] In particular, the cover assembly 120 has a Fig. 1 to 3shown, front cover 196, wherein the front cover 196 expediently encloses the cover insert 188, the base cover 180, the rocker support 118, the clamping piece 126 and the button insert 104.

[0064] In an advantageous embodiment, shown in Fig. 3 , the front cover 196 also has an insertion opening 198 arranged coaxially with the insertion channel 122 for passing through the key card 102 to be inserted. The cover insert 188 is expediently held or arranged between the base cover 180 and the front cover 196, wherein the cover insert 188 is advantageously arranged in or on the front cover 196 such that the insertion opening 192 of the cover insert 188 and the insertion opening 198 of the front cover 196 are aligned with one another.

[0065] Preferably, the front cover 196 has locking means 200 for locking connection with the base cover 180 and / or with the cover insert 188. In particular in Fig. 3 A variant is shown, according to which the front cover 196 has, in the area of ​​its insertion opening 192, a locking arm 200 projecting towards the key insert 104 and having a clamping surface facing away from the key insert 104. The front cover 196 can be connected to the cover insert in a locking manner by means of the locking arm 200. Furthermore, it provides for a Fig. 3 The optional variant shown provides that a bearing geometry 202 is formed on the base wall 190 of the cover insert 188. This is formed in particular opposite the insertion channel 122 on the base wall 190, wherein the bearing geometry 202 is expediently designed such that it ensures a positive and / or non-positive mounting on the front cover 196.

[0066] As in the Fig. 1 and 3 As shown, the front cover 196, in a special embodiment, has a groove 204 on a front surface facing away from the key insert 104. This groove 204 is expediently used for the arrangement, in particular for the clamping arrangement, of a Fig. 1 and 3 shown, aperture 206. Preferably, the groove 204 is formed such that it intersects the perpendicular bisector X of the support ring opening and runs parallel to a frame side 136 of the clamping piece 126, shown in Fig. 3 .

[0067] According to a preferred embodiment, which is particularly suitable in Fig. 1 As shown, the clamping piece 126 and the cover arrangement 120, in particular the front cover 196, the cover insert 188 and the rocker support 118, each have a light guide or an opening 208 formed.

[0068] The light guides or the openings 208 in the respective elements are useful, as in Fig. 1 and 3 indicated, are formed and arranged coaxially to one another on the perpendicular bisector X of the support ring opening in such a way that they transmit light from a light source formed in the key insert 104. Preferably, it is particularly advantageous that the light guide or the opening 208 of the front cover 196, as in Fig. 1 shown, is formed within the groove 204 for the aperture 206. In particular, the aperture 206 is at least partially translucent.

[0069] In particular, the electrical switch 100 comprises an adapter frame 210. The adapter frame 210 is expediently arranged between the cover assembly 120 and the support ring 112 and preferably a mounted cover frame 116. In particular, at least a portion of the axial extent of the adapter frame is along the center axis of the support ring opening, as shown in the Fig. 2 and 3 As shown, it is circumferentially surrounded by the cover frame 116. The adapter frame 210 enables, in particular, mechanical or geometric adaptation to differently designed cover frames 116. List of reference symbols

[0070] 100Electrical switch 102Key card 104Button insert 110Switching rocker 112Supporting ring 114Aperture in supporting ring 116Cover frame 118Rocker support 120Cover arrangement 122Insertion channel 124End stop 126Clamping piece 130Switching axis 132Rotation axis 134Bearing web 136Frame side 138Clamping geometry 140Bearing surface 142Switching rocker attachment 144Profile extension of the rocker support 145Clamping piece opening 146Frame corner area of ​​the clamping piece 148Clamping extension 150Aperture in the button insert 152Corner area of ​​the supporting ring opening 154Stiffening web 156Opening of the clamping extension 158Slot 160Cylindrical section 162Clamping section 164Rise of the clamping section pointing towards the probe insert 166Rise of the clamping section pointing towards the cylindrical section 168Adjusting shoulder 170Bevel 172Beveled surfaces 174Extension arm 176Locking surface of the extension arm 178Locking arm of the cover assembly / base cover 180Base cover 182Recess 184Bearing pin 186Lever link 188Cover insert 190Base wall 192Insertion opening of theCover insert 194Access opening 196Front cover 198Front cover insertion opening 200Locking device 202Bearing geometry 204Groove 206Aperture 208Light guide / cutout 210Adapter frame MMounting level ESlot direction SSlot level XCenter perpendicular

Claims

1. Electrical switch (100) which can be actuated with a key card (102), having a key insert (104) which comprises electrical connection contacts, electrical switching elements and a rocker switch (110) for actuating the electrical switching elements, it being possible to mount the key insert (104) in the mounting opening by means of a support ring (112), which can be mounted in a mounting plane (M) on an edge region of a mounting opening, wherein a cover frame (116) can be placed on the support ring (112), further comprising a rocker support (118) connected to the rocker switch (110) and a cover arrangement (120) having an insertion channel (122) for a key card (102) to be inserted, the rocker support (118) projecting into the insertion channel (122) such that, when the key card (102) to be inserted is inserted in an insertion direction (E) parallel to the mounting plane (M), the key card (102) can mechanically contact the rocker support (118) such that the rocker support (118) executes a mechanical switching movement, the mechanical switching movement being transmitted to the rocker switch (110), the insertion channel (122) being designed in such a way that the key card (102) can be arranged in an insertion plane (S), which extends parallel to the mounting plane (M), within the insertion channel (122) in a correctly inserted state, characterized in that the cover arrangement (120) and the rocker support (118) are arranged on the key insert (104) by means of a frame-shaped clamping piece (126) in such a way that the distance of the insertion plane (S) from the rocker support (118) is independent of the distance of the cover frame (116) from the support ring (112).

2. Electrical switch (100) according to claim 1, characterized in that the rocker switch (110) is mounted rotatably about a switching axis (130) and the rocker support (118) is mounted rotatably about an axis of rotation (132), the switching axis (130) and the axis of rotation (132) extending parallel to one another and being arranged one behind the other in relation to the central perpendicular (X) of the support ring opening.

3. Electrical switch (100) according to claim 1 or 2, characterized in that the clamping piece (126) has a straight bearing web (134) for the pivotable mounting of the rocker support (118), which intersects the central perpendicular (X) of the supporting ring opening and runs parallel to a frame side (136) of the clamping piece (126).

4. Electrical switch (100) according to claim 3, characterized in that the rocker support (118) has a clamping geometry (138) pointing towards the key insert (104) in such a way that it is clipped or can be clipped onto a bearing surface (140) of the bearing web (134) at least in a form-fitting manner, in particular in a releasable manner, and is mounted pivotably about the bearing web (134).

5. An electrical switch (100) according to any one of claims 1 to 4, characterized in that the rocker support (118) is at least non-positively connected to the rocker switch (110) for transmitting the switching movement.

6. An electrical switch (100) according to any one of claims 1 to 5, characterized in that the rocker switch (110) has projections (142) formed as hollow profiles on a side facing the rocker support (118) and the rocker support (118) has profile extensions (144) on an underside facing the projections of the rocker switch (110), which profile extensions are arranged in the projections so as to be longitudinally displaceable with an oversize.

7. An electrical switch (100) according to any one of claims 1 to 6, characterized in that the clamping piece (126) has a frame shape adapted to the shape of the key insert (104), wherein projecting clamping extensions (148) are formed in frame corner regions (146) of the clamping piece (126) pointing in the direction of the key insert (104), by means of which the clamping piece (126) can be fixed to the key insert (104) in a clamping manner, in particular in a releasable manner.

8. Electrical switch (100) according to claim 7, characterized in that screws and / or bearing pins for radial expansion of the clamping extensions (148) are inserted or can be inserted and / or screwed or can be screwed into the clamping extensions (148).

9. Electrical switch (100) according to claim 8, characterized in that the cover arrangement (120) has a four-sided frame-like base cover (180) with a central opening through which the rocker support (118) passes, the base cover (180) having, in at least one corner region, a recess (182) facing the key insert (104) and arranged coaxially with one of the clamping extensions (148) of the clamping piece (126) for the screw to pass through.

10. Electrical switch (100) according to claim 8 or 9, characterized in that the base cover (180) has, in at least one corner region, a bearing pin (184) which points towards the key insert (104) and is arranged coaxially with respect to one of the clamping extensions (148) of the clamping piece (126) and which is or can be inserted into one of the clamping extensions (148) of the clamping piece (126).

11. Electrical switch (100) according to claim 9 or 10, characterized in that the base cover (180) has formed recesses (182), which are arranged coaxially in two diagonally offset corner regions (152) with respect to two of the clamping extensions (148) of the clamping piece (126), for passing through the screws and / or has formed bearing pins (184), which are arranged coaxially in two diagonally offset corner regions (152) with respect to two of the clamping extensions (148) of the clamping piece (126).

12. An electrical switch (100) according to any one of claims 1 to 11, characterized in that the rocker support (118) has at least one ramp-like lever member (186) which rises away from the key insert (104) in the insertion direction (M) and projects from the rocker support (118) into the insertion channel (122) on the side facing away from the key insert (104) in such a way that, when the key card (102) to be inserted is inserted, the rocker support (118) executes the mechanical switching movement against a restoring force.

13. An electrical switch (100) according to any one of claims 1 to 12, characterized in that the cover arrangement (120) has a cover insert (188), the rocker support (118) being arranged between the clamping piece (126) and an underside, forming the insertion channel (122), of a base wall (190) of the cover insert (188) extending parallel to the mounting plane (M).

14. Electrical switch (100) according to claim 13, characterized in that the base wall (190) of the cover insert (188) has at least one aperture formed as a reach-through opening (194), the rocker support (118) projecting partially, in particular with the lever member (186), into the reach-through opening (194) or projecting through the reach-through opening (194) in a non-inserted state of the key card (102) to be inserted.

15. Electrical switch (100) according to claim 13 or 14, characterized in that the cover arrangement (120) has a front cover (196) which has an insertion opening (192), arranged coaxially with the insertion channel (122), for passing through the key card (102) to be inserted, the front cover (196) being latched to the base cover (180) and / or to the cover insert (188), the cover insert (188) being held between the base cover (180) and the front cover (196).

16. Electrical switch (100) according to claim 15, characterized in that the base wall (190) of the cover insert (188) opposite the insertion channel (122) has a bearing geometry (202) for form-fit and / or force-fit mounting of the front cover (196).

17. Electrical switch (100) according to claim 15 or 16, characterized in that the front cover (196) has a groove (204) on a front surface facing away from the key insert (104) for the arrangement, in particular clamping arrangement, of a cover (206), the groove (204) intersecting the central perpendicular (X) of the support ring opening and running parallel to a frame side (136) of the clamping piece (126).

18. An electrical switch (100) according to any one of claims 1 to 17, characterized in that the clamping piece (126) and the cover arrangement (120), in particular the front cover (196), the cover insert (188) and the rocker support (118), have each formed a light guide or an aperture (208), the light guides or the apertures (208) being formed and arranged coaxially to one another on the central perpendicular (X) of the support ring in such a way that they transmit a light from a light source formed in the key insert (104).

19. An electrical switch (100) according to any one of claims 1 to 18, characterized in that an adapter frame (210) is arranged between the cover arrangement (120) and the support ring (112), the adapter frame (210) having a central adapter opening through which the rocker support (118) projects.