EP4415016A1 - Electrical switch with wallpaper compensation - Google Patents

Abstract

The present invention relates to an electrical switch (100) which can be operated with a key card (102), having a button insert (104) which comprises electrical connection contacts, electrical switching elements and a rocker switch (110) for operating the electrical switching elements. The button insert (104) can be mounted in the mounting opening by means of a support ring (112) which can be supported 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). The electrical switch (100) also has 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) projects into the insertion channel (122) in such a way 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) in such a way that the rocker support (118) carries out a mechanical switching movement that is transmitted to the switching rocker (110). The insertion channel (122) is designed in such a way that the key card (102) can be arranged in an insertion plane (S) that extends parallel to the mounting plane (M) within the insertion channel (122) in a functionally correctly inserted state. 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) such 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).

Description

The invention relates to an electrical switch that can be operated with a key card. This has a button insert that includes electrical connection contacts, electrical switching elements and a rocker switch. The rocker switch is used to operate the electrical switching elements. The button insert can be mounted in a mounting opening using a support ring. The support ring can be stored in a mounting plane on an edge area of the mounting opening. A cover frame can also be placed on the support ring. The electrical switch also has a rocker support and a cover arrangement. The rocker support is connected to the rocker switch. The cover arrangement has an insertion channel for a key card to be inserted. The rocker support protrudes into the insertion channel in such a way that when the key card to be inserted 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 carries out a mechanical switching movement. The mechanical switching movement is thereby transferred to the rocker switch. The insertion channel is designed such that when the key card is correctly inserted, the key card can be arranged in an insertion plane that extends parallel to the mounting plane within the insertion channel.

It is known that such electrical switches are installed in electrical installation boxes in the building installation. Such electrical switches are often used in hotels and apartments, especially in the door or entrance area. By inserting the key card, a switch is activated which enables certain functions, such as the power supply.

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

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 bring about a permanent electrical contact for the time in which the key card is inserted into the electrical switch, or only a temporary contact.

As electrical switches are known to be installed at different times during the construction phases of a building, for example directly during house construction or following renovation, electrical switches are regularly installed on different surfaces, in particular wallpaper, bare walls, painted walls or plastered walls. This leads to the problem that the support ring of the button insert is often installed at a different level than the top layer of the wall, which is raised by wallpaper, for example. 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 at every installation location, since a large height offset makes it difficult or impossible to insert the key card.

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

From the EN 10 2008 052 524 A1 For example, an electrical switch for use with a key card is known which ensures that the electrical switch can be inserted and functions in conjunction with the key card even if the height is offset. To do this, 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 when the key card is inserted it is guided against a rocker to bring about a mechanical switching movement. The wallpaper compensation is achieved by angle compensation using the cantilever arm. Furthermore, the cover frame is only placed on the support ring, but not fastened, so that the cover frame is 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 into the insertion channel when inserting the key card. There is therefore 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.

Another electrical switch for use with a key card and a wallpaper balance is from the DE 44 46 790 A1 known. The key card is also inserted at an angle to the wall into a slot in the electrical switch. A cover frame and a cover assembly are mounted so that they can move relative to a frame that is enclosed by the cover assembly and has a switch lever. The cover assembly and the frame each have conical card insertion openings that overlap one another and thus enable wallpaper to be leveled. In addition to the insertion direction, which is at an angle to the wall and needs improvement, the card is bent out of an insertion plane when inserted, so that the key card is stressed each time it is inserted and when it is inserted.

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 enables improved function and/or operation while providing wallpaper compensation.

The object is achieved according to the invention by the features of claim 1 in that the cover arrangement and the rocker support are arranged on the key insert by means of a frame-shaped clamping piece in such a way 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 to the mounting plane in relation to a perpendicular bisector of a support ring opening enclosed by the support ring can thus be variably adjusted in a preferred manner within a tolerance distance.

By designing and arranging the clamping piece according to the invention, it is 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 assembly opening is arranged, 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 arrangement. The clamping piece advantageously 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 an axis of rotation. This advantageously allows the rocker support with its axis of rotation to be decoupled from the rocker switch and arranged at a distance along the perpendicular bisector of the support ring opening. The switching axis and the axis of rotation expediently run parallel to one another. In particular, it is to be provided that the switching axis and the axis of rotation are arranged one behind the other in relation to the perpendicular bisector of the support ring opening, so that a compact and space-saving structure is provided.

In an advantageous embodiment of the invention, the clamping piece has a straight bearing web for pivotably supporting the rocker support. The bearing web advantageously forms the axis of rotation for the rocker support, so that the axis of rotation is displaced to the same extent 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 a frame side of the clamping piece.

The rocker support advantageously has a clamping geometry facing the key 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 at least a form-fitting manner and is pivotably mounted around the bearing web. This advantageously provides a bearing which secures the arrangement of the rocker support on the clamping piece and at the same time provides the axis of rotation for the rocker support. It has also proven to be advantageous, particularly for maintenance and assembly, if the form-fitting arrangement of the clamping geometry on the bearing surfaces is designed to be removable without causing any damage.

In practice, it has proven useful that the rocker support is at least non-positively connected to the rocker switch to transmit the switching movement. For example, this is achieved by the rocker switch having projections designed as hollow profiles on a side facing the rocker support. The rocker support advantageously has profile extensions on a lower side facing the projections of the rocker switch, which are arranged in the projections with an excess length so that they can be moved longitudinally. In the case of a mechanical switching movement, a non-positive connection is advantageously created between the profile extensions of the rocker support and the projections of the rocker switch designed as hollow profiles, whereby the mechanical switching movement can be transmitted from the rocker support to the rocker switch. By means of the excess length and the longitudinally movable arrangement between the profile extensions and the projections, the rocker support is connected to the rocker switch along the mid-perpendicular of the support ring opening in such a way that movable so that the transmission of the mechanical switching movement is ensured at least within the tolerance distance.

According to a preferred variant of the electrical switch, the clamping piece has a frame shape adapted to the shape of the button insert. A rectangular shape in a plan view along the perpendicular bisector of the support ring opening has proven advantageous. In particular, clamping extensions are formed in the frame corner areas of the clamping piece that point towards the button insert, by means of which the clamping piece can be clamped to the button insert. For the maintenance and assembly of the electrical switch, the clamping extensions of the clamping piece and the button insert are designed in such a way that the clamping piece can be detached from the button insert without causing any damage, or the clamping fixation between the clamping extensions and the button insert can be removed.

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

By means of the clamping extensions, the clamping piece is or can be fixed to the probe insert in the corner areas in a force-locking manner when inserted. For this purpose, it has proven advantageous that screws and/or bearing pins for radially spreading the clamping extensions are or can be inserted and/or screwed or screwed into the clamping extensions. In this regard, a special design 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 inserted into the clamping extension pointing towards the probe insert. The insertion results in a spreading of the hollow-cylindrical clamping extensions in particular, so that an advantageous fixation of the clamping piece to the probe insert can take place. In order to ensure safety To prevent the fixation and accidental removal of the clamping piece, for example due to theft, the screw used to spread the clamping extension can have a force attack with a special profile, so that a specially designed release tool is necessary to release it.

In a special embodiment of the invention, the cover arrangement has 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 to the central perpendicular 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 operated. 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 in such a way that the rocker support carries out the mechanical switching movement.

For the arrangement of the base cover, it has also proven to be advantageous that the base cover has a recess in at least one corner area, which faces the touch insert and is 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 touch insert and the base cover can be connected to the clamping piece at the same time using 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 in two diagonally offset corner areas, arranged coaxially with two of the clamping extensions of the clamping piece, for passing through a screw.

Preferably, as an alternative to the recesses for passing through the screw for spreading the clamping extensions or in addition thereto, the base cover has in at least one of the corner areas or in at least one further corner area a recess pointing towards the key insert and to a clamping extension of the clamping piece coaxially arranged bearing pin. This bearing pin is expediently formed in one piece 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 support 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 button insert. In particular, the bearing pin simplifies the assembly of the electrical switch in that the base cover is fixed to the clamping piece by placing the base cover on the clamping piece in the direction of the button insert, whereby the clamping piece is advantageously fixed to the button insert at the same time.

It has proven to be particularly advantageous if the base cover has recesses arranged coaxially to two of the clamping extensions of the clamping piece in two diagonally offset corner areas for passing through the screws and/or bearing pins arranged coaxially to two of the clamping extensions of the clamping piece in two diagonally offset corner areas 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 passing through the screws and two diagonal bearing pins is to be preferred for a particularly advantageous positional securing.

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 member that rises like a ramp in the direction of insertion. The lever member expediently protrudes from the rocker support on the side facing away from the button insert, whereby it advantageously projects into the insertion channel. In particular, the lever member projects into the insertion channel in such a way that when the key card to be inserted is inserted, the rocker support carries out the mechanical switching movement, preferably against a restoring force. When inserting the key card into When inserted into the insertion channel, the key card comes into contact with the lever link, whereby the ramp-like shape of the lever link ensures that the key card does not become jammed. By moving the key card further 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.

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 button insert and by the cover insert in the direction away from the button insert. The cover insert expediently provides a secure guide 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, with the insertion channel expediently adjoining the insertion opening in the insertion direction.

In particular, the base wall of the cover insert has at least one opening designed as a through-opening. Preferably, the through-opening and the rocker support are designed in such a way 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 can be opened by means of the key card to be inserted by moving the key card in the insertion direction against the rocker support, in particular against the lever member. If the key card to be inserted is inserted so far into the insertion channel in If the key card is inserted in the insertion direction so that it comes into contact with the rocker support, the rocker support is mechanically displaced, in particular pivoted about its axis of rotation. In particular, this opens the barrier formed by the rocker support so that the key card can be inserted further in the insertion direction into the insertion channel. At the same time, a mechanical switching movement of the rocker support is advantageously transferred to the rocker switch.

The cover arrangement 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 button insert. The front cover expediently has a visually appealing front surface that faces away from the button insert.

In particular, the front cover also has an insertion opening arranged coaxially to the insertion channel for passing through the key card to be inserted. The cover insert is preferably 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 in such a way that the insertion opening of the cover insert and the insertion opening of the front cover are aligned with one another.

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 useful for arranging the front cover. An optional bearing geometry formed on the base wall has proven particularly useful for arranging the cover insert on the front cover. This is formed in particular opposite the insertion channel on the base wall, with the bearing geometry being expediently designed in such a way that it ensures positive and/or force-fitting mounting on the front cover.

In particular, it is advantageous that the front cover has a groove on a front surface facing away from the key insert. This groove is used for the arrangement, in particular for the clamping arrangement, of a Cover. The cover can be designed in particular for the arrangement of a nameplate or a room number or a functional designation of the electrical switch, for example "power switch". In particular, it has proven to be particularly useful for the groove to be designed in such a way that it intersects the perpendicular bisector of the support ring opening and runs parallel to one side of the frame of the clamping piece.

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 in such a way that they transmit light from a light source formed in the button insert. For example, a standby 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 in such a way that a key card inserted correctly into the insertion channel covers the light guides or the openings of the rocker support and the clamping piece, so that it is immediately recognizable that a key card is arranged in the insertion channel of the electrical switch.

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

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 arrangement and the support ring. The adapter frame expediently has a central adapter opening through which the rocker support protrudes.

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

Fig. 1

eine Explosionsansicht einer Ausführung eines erfindungsgemäßen elektrischen Schalters mit einem Abdeckrahmen,

Fig. 1A

eine Detailansicht des Bereichs D gemäß Fig. 1,

Fig. 2

eine Schnittansicht des elektrischen Schalters mit dem Abdeckrahmen gemäß Fig. 1 und einer eingesteckten Schlüsselkarte entlang einer Mittelsenkrechten eines Tragrings in eine Einsteckrichtung der einzusteckenden Schlüsselkarte betrachtet, und

Fig. 3

eine Schnittansicht entlang der Trennebene A - A gemäß Fig. 2.

They show:

Fig.1

an exploded view of an embodiment of an electrical switch according to the invention with a cover frame,

Fig. 1A

a detailed view of 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 median 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 .

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

With regard to the following description, it is claimed that the invention is not limited to the embodiments and thereby not to all or several features of described feature combinations, but rather each individual partial feature of the/each embodiment is also detached from all other partial features described in connection with it, in itself and also in combination with any features of another embodiment of importance for the subject matter of the invention.

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

The key 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 stored in a mounting plane M on an edge area of the mounting opening. The support ring 112 expediently has, as shown in Fig.1 shown, openings 114, which enable 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-locking 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.

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

The rocker support 118 extends 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 in such a way that the rocker support 118 carries out a mechanical switching movement. The rocker support 118 preferably carries out the mechanical switching movement against a restoring force. The restoring force can be generated with an elastic element, for example a plastic or a metallic spring. In particular, the key card 102 moves the rocker support 118 by placing the key card 102 on the rocker support 118, so that the rocker support 118 is mechanically actuated or moved. In the Fig. 2 and 3 it 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.

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

According to the invention, the cover arrangement 120 and the rocker support 118 are connected by means of a, in particular in Fig.1 shown, 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 from the mounting plane M is variably adjustable within a tolerance distance. The distance of the insertion plane S from the mounting plane M is measured according to the invention in relation 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.

The Fig. 2 and 3 show 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.

Preferably, the rocker switch 110 is mounted so that it can rotate about a switching axis 130, with the rocker support 118 being expediently mounted so that it can rotate about a rotation axis 132. In a preferred, compact embodiment of the invention, the switching axis 130 and the rotation axis 132 run parallel to one another and are arranged one behind the other with respect to the perpendicular bisector X of the support ring opening.

According to a variant of the invention, the clamping piece 126, as in Fig.1 shown, 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 central perpendicular 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 in such a way that when the clamping piece 126 is displaced along the central perpendicular X of the support ring opening, the rocker support 118 is displaced with its axis of rotation 132 to the same extent.

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.1 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 detached and reassembled from the clamping piece 126 in a non-destructive manner, in particular by means of the clamping geometry 138.

The rocker support 118 and the rocker switch 110 are expediently connected at least in a force-locking manner to transmit the switching movement. It has proven to be It has proven particularly advantageous that, according to a special embodiment, the rocker switch 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 in Fig.1 The rocker support 118 advantageously has profile extensions 144 on a lower side facing the lugs 142 of the rocker switch 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 in Fig.2 indicated, arranged or can be arranged in the lugs 142 with an excess for longitudinal displacement.

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

According to the Fig.1 the 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 touch insert 104 is expediently designed and in particular arranged in the support ring opening such that the touch 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.

As in Fig.1 As 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 to be advantageous that the stiffening webs 154 are 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.

The clamping extensions 148 serve in particular for the force-fitting fixation of the clamping piece 126 to the probe insert 104. Screws and/or bearing pins are expediently inserted or can be inserted 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 designed as hollow cylinders, in particular dowel-like.

Accordingly Fig. 1A it is advantageous that the clamping extensions 148 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 touch 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 touch insert 104 can take place. The hollow cylindrical clamping extensions 148 in particular have a longitudinally slotted peripheral wall. The slots 158 extend towards the touch 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 touch insert 104 is improved.

In a special, advantageous in Fig.1A In the embodiment of the clamping piece 126 shown, the opening 156 of the respective clamping extension 148 facing the probe insert 104 is adjoined by a cylindrical section 160. The cylindrical section 160 advantageously merges into a clamping section 162 which increases in diameter. The clamping section 162 is preferably designed in such a way that in the assembled state of the clamping piece 126 with 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 pointing to the probe insert 104 and/or a ramp-like rise 166 starting from its end pointing to the probe insert 104 in the direction away from the probe insert 104. The clamping extension 148 expediently has in the clamping section 162 a maximum diameter in an area which is spaced from the cylindrical section and from the end pointing to the probe insert 104, wherein starting from the maximum diameter the diameter of the clamping extension 148 pointing to the cylindrical section 160 and to the end pointing to the probe insert 104 decreases in a ramp-like manner. 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 touch insert 104. In particular, the clamping extensions 148 can be advantageously inserted or removed by means of the ramp-like rises 164, 166 into the respective opening 150 formed on the touch insert 104 for receiving the respective clamping extension 148.

As in Fig.1 As 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 adjustment projections 168. In particular, the adjustment projections 168 are formed on both sides of the stiffening web 154. Advantageously, the adjustment projections 168, as in Fig.2 shown, pointing radially outwards, in particular in the direction of a cover frame 116 to be mounted, 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 align itself on the cover frame 116 via the adjusting lugs 168 and the beveled surfaces 172.

Furthermore, the adjustment projections 168 can be designed in accordance with a further development, as shown in the Fig.1 and 2 shown, have arms 174 which protrude radially inwards from the respective frame side 136, in particular the respective polygon side of the clamping piece 126. The arms 174 expediently have at their radially inwardly pointing ends, as shown in Fig.2 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 arrangement 120, in particular a base cover 180 of the cover arrangement 120. The locking surface 176 and the locking arm 178 advantageously ensure that the cover arrangement 120 is locked to the clamping piece 126.

The basic coverage 180 is in particular, as in Fig.1 shown, designed like a frame on four sides with a central opening. The opening of 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 to the central perpendicular X of the support ring opening such that the rocker support 118 can be mechanically operated. 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 carries out the mechanical switching movement.

In a special embodiment, the base cover 180 has a recess 182 in at least one corner region, which faces the touch insert 104 and is arranged coaxially with one of the clamping extensions 148 of the clamping piece 126, for passing through the screw for spreading the clamping extension 148, which is in particular hollow cylindrical. By means of the screw guided through the recess 182, both the clamping piece 126 in the touch insert 104 and the base cover 180 with the clamping piece 126 can be advantageously fixed at the same time. In particular, 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 for an advantageous arrangement.

Alternatively, it may be advantageous to design the recesses 182 in such a way that the screws for spreading the clamping extensions 148 can only be guided 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 which is larger than a 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 made, for example, by means of the arms 174 of the adjustment lugs 168 and the locking arms 178.

Preferably, as an alternative to the recesses 182 for passing through the screw for spreading the clamping extensions 148 or in addition thereto, the base cover 180 has a bearing pin 184 in at least one of the corner areas or in at least one further corner area, which points towards the touch insert 104 and is 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, in order to spread the clamping extensions 148, recesses 182 are formed in two diagonally offset corner regions 152 coaxially arranged with respect 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 other two diagonally offset corner regions 152 coaxially arranged with respect to two of the clamping extensions 148 of the clamping piece 126.

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 designed in particular 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 in such a way that the respective clamping extension 148 is spread when the bearing pin 184 is inserted.

According to a preferred embodiment of the electrical switch 100, the rocker support 118, as shown in the Fig.1 and 3 shown, at least a ramp-like in The lever member 186 rises in a manner that is resistant to the insertion direction E from the key insert 104. The lever member 186 protrudes through the insertion plane S, particularly when the key card 102 to be inserted is not inserted, in such a way that it advantageously protrudes into the insertion channel 122. This advantageously allows the key card 102 to be inserted to 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 carries out 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, the ramp-like shape of the lever member 186 ensuring 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 rocker switch 110.

According to a further variant of the electrical switch 100, the cover arrangement 120 has a cover insert 188. The cover insert 188 is in particular in 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 3 shown, a frame-like insertion opening 192 facing the insertion direction E, wherein the insertion channel 122 adjoins the insertion opening 192 in the insertion direction E. A special embodiment also provides that
In a special embodiment, the insertion channel 122 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.

In order to improve the switching function when inserting the key card 102, the cover insert 188 preferably has at least one The opening 194 is formed by a hole. Fig.1 The 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 projects into the access opening 194 or through the access opening 194 when the key card 102 to be inserted is not inserted.

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 can be opened by means of the key card 102 to be inserted by moving the key card 102 in the insertion direction E against the rocker support 118, in particular against the lever member 186. In the Fig.3 a 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 mechanically pivoted 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 rocker switch 110.

In particular, the cover assembly 120 has a Fig. 1 to 3 shown, 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.

In an advantageous embodiment, shown in Fig.3 , the front cover 196 also has an insertion opening 198 arranged coaxially to the insertion channel 122 for passing through the key card 102 to be inserted. The cover insert 188 is expediently arranged between the base cover 180 and the Front cover 196 can be held or arranged, 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.

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 a locking arm 200 protruding from the key insert 104 in the area of its insertion opening 192, with 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, there is 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 formed in such a way that it ensures a positive and/or non-positive mounting on the front cover 196.

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 Preferably, the groove 204 is designed 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 .

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.

The light guides or the openings 208 in the respective elements are expediently as in Fig.1 and 3 indicated, are designed and arranged coaxially to one another on the central perpendicular 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 cover 206. In particular, the cover 206 is at least partially translucent.

In particular, the electrical switch 100 comprises an adapter frame 210. The adapter frame 210 is suitably arranged between the cover arrangement 120 and the support ring 112 and preferably a mounted cover frame 116. In particular, at least a portion of the axial extension of the adapter frame is along the center axis of the support ring opening, as shown in the Fig. 2 and 3 shown, surrounded by the cover frame 116. The adapter frame 210 enables in particular a mechanical or geometric adaptation to differently designed cover frames 116.

The invention is not limited to the embodiments shown and described, but also includes all embodiments that have the same effect within the meaning of the invention. It is expressly emphasized that the embodiments are not limited to all features in combination; rather, each individual partial feature can also have an inventive significance in itself, separated from all other partial features. Furthermore, the invention is not yet limited to the combination of features defined in claim 1, but can also be defined by any other combination of certain features of all the individual features disclosed overall. This means that in principle practically every individual feature of claim 1 can be omitted or replaced by at least one individual feature disclosed elsewhere in the application.

List of reference symbols

100

Electrical switch

102

Key card

104

Button insert

110

Rocker switch

112

Support ring

114

Breakthrough in the support ring

116

Cover frame

118

Rocker pad

120

Cover arrangement

122

Insert channel

124

End stop

126

Clamping piece

130

Switching axis

132

Rotation axis

134

Bearing bridge

136

Frame side

138

Clamping geometry

140

Storage area

142

Approach of the rocker switch

144

Profile extension of the rocker support

145

Clamp opening

146

Frame corner area of the clamping piece

148

Clamping process

150

Breakthrough in the key insert

152

Corner area of the support ring opening

154

Bracing web

156

Opening of the clamping process

158

slot

160

Cylindrical section

162

Clamping section

164

Rise of the clamping section pointing to the key insert

166

Rise of the clamping section towards the cylindrical section

168

Adjustment approach

170

bevel

172

Inclined surfaces

174

boom

176

Boom rest area

178

Cover assembly/base cover locking arm

180

Basic coverage

182

Recess

184

Bearing pin

186

Lever link

188

Cover insert

190

Base wall

192

Insert opening of the cover insert

194

Access opening

196

Front cover

198

Front cover insertion opening

200

Resting means

202

Bearing geometry

204

Groove

206

Aperture

208

Light guide/breakthrough

210

Adapter frame

M

Mounting level

E

Plug direction

S

Plug level

X

Bisecting line

Claims (19)

Electrical switch (100) which can be operated with a key card (102), having a button insert (104) which comprises electrical connection contacts, electrical switching elements and a rocker switch (110) for actuating the electrical switching elements, wherein the button insert (104) can be mounted 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, wherein the rocker support (118) protrudes into the insertion channel (122) in such a way that when the key card (102) to be inserted is inserted in an insertion direction (E) parallel the key card (102) can mechanically contact the rocker support (118) with the mounting plane (M) in such a way that the rocker support (118) carries out 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 a functionally correctly inserted state in an insertion plane (S) which extends parallel to the mounting plane (M), within the insertion channel (122),
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) such 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). Electrical switch (100) according to claim 1,
characterized in that the switching rocker (110) is mounted so as to be rotatable about a switching axis (130) and the rocker support (118) is mounted so as to be rotatable about an axis of rotation (132), wherein the switching axis (130) and the axis of rotation (132) run parallel to one another and are arranged one behind the other with respect to the perpendicular bisector (X) of the support ring opening. Electrical switch (100) according to claim 1 or 2,
characterized in that the clamping piece (126) has a straight bearing web (134) for pivotably mounting the rocker support (118), which intersects the perpendicular bisector (X) of the support ring opening and runs parallel to a frame side (136) of the clamping piece (126). Electrical switch (100) according to claim 3,
characterized in that the rocker support (118) has a clamping geometry (138) pointing towards the button 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 detachably, and is pivotably mounted about the bearing web (134). Electrical switch (100) according to one of claims 1 to 4,
characterized in that the rocker support (118) is at least non-positively connected to the switching rocker (110) for transmitting the switching movement. Electrical switch (100) according to one of claims 1 to 5,
characterized in that the rocker switch (110) has projections (142) designed as hollow profiles on a side facing the rocker support (118), and the rocker support (118) has profile extensions (144) on a lower side facing the projections of the rocker switch (110), which are arranged in the projections so as to be longitudinally displaceable with an excess. Electrical switch (100) according to 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 in frame corner regions (146) of the clamping piece (126) projecting clamping extensions (148) are formed 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, in particular releasable, manner. Electrical switch (100) according to claim 7,
characterized in that screws and/or bearing pins are inserted or can be inserted and/or screwed or screwed into the clamping extensions (148) for radially spreading the clamping extensions (148). 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, wherein the base cover (180) has in at least one corner region a recess (182) for passing through the screw, which recess faces the key insert (104) and is arranged coaxially with one of the clamping extensions (148) of the clamping piece (126). Electrical switch (100) according to claim 8 or 9,
characterized in that the base cover (180) has formed in at least one corner region a bearing pin (184) pointing towards the key insert (104) and arranged coaxially with one of the clamping extensions (148) of the clamping piece (126), which is inserted or can be inserted into one of the clamping extensions (148) of the clamping piece (126). Electrical switch (100) according to claim 9 or 10,
characterized in that the base cover (180) has recesses (182) arranged coaxially to two of the clamping extensions (148) of the clamping piece (126) in two diagonally offset corner regions (152) for passing through the screws and/or has bearing pins (184) arranged coaxially to two of the clamping extensions (148) of the clamping piece (126) in two diagonally offset corner regions (152). Electrical switch (100) according to one of claims 1 to 11,
characterized in that the rocker support (118) has at least one lever member (186) which rises in a ramp-like manner in the insertion direction (M) away from the key insert (104) and which projects from the rocker support (118) into the side facing away from the key insert (104) into the insertion channel (122) in such a way that when the key card (102) to be inserted is inserted, the rocker support (118) carries out the mechanical switching movement against a restoring force. Electrical switch (100) according to one of claims 1 to 12,
characterized in that the cover arrangement (120) has a cover insert (188), wherein the rocker support (118) is 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). Electrical switch (100) according to claim 13,
characterized in that the base wall (190) of the cover insert (188) has at least one opening designed as a through-opening (194), wherein the rocker support (118) partially, in particular with the lever member (186), projects into the through-opening (194) or through the through-opening (194) in a non-inserted state of the key card (102) to be inserted. 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, wherein the front cover (196) is latched to the base cover (180) and/or to the cover insert (188), wherein the cover insert (188) is held between the base cover (180) and the front cover (196). 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 the positive and/or non-positive mounting of the front cover (196). 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, of a cover (206), wherein the groove (204) intersects the perpendicular bisector (X) of the support ring opening and runs parallel to a frame side (136) of the clamping piece (126). Electrical switch (100) according to 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), each have a light guide or an opening (208) formed, wherein the light guides or the openings (208) are formed and arranged coaxially to one another on the perpendicular bisector (X) of the support ring opening such that they transmit light from a light source formed in the button insert (104). Electrical switch (100) according to 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), wherein the adapter frame (210) has a central adapter opening through which the rocker support (118) projects.

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