EP1353349A2 - Auxiliary switch - Google Patents

Abstract

The device has at least one movable and at least two fixed contact parts connected to an installation switch/further auxiliary switches, has an actuating lever with on and off positions, can be operated in signal or auxiliary contact switch modes and has a test button(s) for checking its function or that of at least one auxiliary current circuit. Its actuating device is in the form of a switching mechanism that acts on a contact spring. The device has at least one movable (10) and at least one first (111) and second (112) fixed contact part connected via coupling elements to an installation switch or further auxiliary switches, has an actuating lever that can adopt switched on and switched off positions, can be operated in signal contact switch or auxiliary contact switch modes and has at least one test button for checking its function or that of at least one auxiliary current circuit. The actuating device for the auxiliary switch is in the form of a switching mechanism (200) that acts on a contact spring (113) via a drive lever (250). Independent claims are also included for the following: a switching mechanism for an inventive device and an installation device with one or more inventive devices.

Description

The present invention relates to an installation switch, in particular an installation self-switch, attachable auxiliary switch according to the preamble of claim 1, a switching mechanism for use in the auxiliary switch, and an installation device.

Auxiliary switches are used to open and / or close auxiliary circuits, the Switching status of the main contacts of an installation switch, e.g. an installation automatic switch is clearly transmitted. The auxiliary circuit is from the main circuit galvanically isolated.

Auxiliary switches are used both in operating mode as auxiliary contact switches or in operating mode operated as a signal contact switch. In auxiliary contact switch operating mode they are switched by the installation device simultaneously with its main pole, i.e. either with manual switching of the installation device and when the installation device is triggered due to thermal overload or a short circuit, or at Attachment to a residual current circuit breaker (FI) in the event of a FI trip. In operating mode Signal contact switches are only switched when the installation device is through Tripping device was triggered, but not when the installation device was switched manually.

An auxiliary switch is known from EP 0326446B1, which has at least one movable switch and having at least a first and a second fixed contact piece, wherein the movable contact piece is attached to a contact spring and this from an actuator is applied, which with an operating lever with a first and via at least one release lever with at least one second coupling member cooperates. This auxiliary switch is also available via the coupling links the installation switch or other auxiliary switches connected in parallel, wherein the connection between the actuating lever via the first coupling member of the auxiliary switch and / or the operating lever of further auxiliary switches and / or the manual actuator of the installation self-switch and via the at least second coupling member the connection between the at least one Release lever of the auxiliary switch and / or the release lever (s) of further auxiliary switches and / or the triggering element of the installation selector switch is produced.

Heinrich Kopp AG, Alzenauer Strasse 66, D-63796 Kahl, sells under the Product name "Green Electric" auxiliary switch, which can either be in operating mode Signal contact switch or auxiliary contact switch for switching auxiliary circuits can be operated, see product catalog Heinrich Kopp AG, 2001. The respective operating mode in these devices is from the outside via an adjustment device adjustable, but for setting the auxiliary switch from the installation device carrier must be expanded. The auxiliary switch also has a test button to check the function of the auxiliary circuit (s). This test button allows however only one test function, i.e. it can e.g. only in operating mode signal contact switch Check whether the moving contact can still be switched, but not in operating mode "auxiliary contact switch", or it can only be in operating mode Auxiliary contact switches are checked. Especially when testing the auxiliary switch in operating mode Auxiliary contact switch may be switched on when the installation device is switched on the installation device cannot be switched off by the test. For this purpose, the connection must first be made manually in the known auxiliary switch before the test between the operating lever of the installation device and the operating lever of the auxiliary switch can be released.

An auxiliary switch is known from EP 0303965B1, which has both the function in one device "Auxiliary contact switch" and "signal contact switch" represents, with this Purposes has two separate switchgear, which also from the outside via separate Terminal arrangements are to be wired. Should this auxiliary switch between the The function of auxiliary contact switch and signal contact switch must be changed by manual intervention the wiring can be changed, which is an additional Costs incurred.

Starting from the known prior art, the invention is based on the object to develop an auxiliary switch and an actuator for this To create auxiliary switches so that the auxiliary switch both in the operating mode "auxiliary contact switch" as well as in the operating mode "signal contact switch" when installed and can be checked at any position of the shift knob without the switching contact of the main unit is switched or the coupling between the Switch toggle of the auxiliary switch and the manual control element of the main switch must be solved, as well as to describe an installation device, which with the auxiliary switch interacts.

This object is achieved according to the invention by the features of claim 1. Further advantageous refinements and improvements of the invention are in the dependent claims 2 to 15 indicated.

According to the invention, the actuating device of the auxiliary switch according to the invention formed from a switching mechanism that acts on a contact spring via a driving lever, so that the movable contact piece in a first switching state is brought into electrical contact with one of the two fixed contact pieces, and in at least a second derailleur state of the drive lever from the derailleur is released again. The auxiliary switch according to the invention has two test buttons, which can be operated by hand or by means of a tool. Each of the two test buttons a switchgear state is assigned, from which by pressing the test button the rear derailleur changes to the other state without changing the position of the To influence the operating lever.

In an advantageous embodiment of the invention, the auxiliary switch is a two-way switch formed, which has an access that via the contact spring with the Movable contact piece is connected as well as two outlets that are electrical Line connectors are connected to the first and second fixed contact pieces, with electrical contact between the movable contact piece and a a first switch position of the two fixed contact pieces and with electrical contact between the movable contact piece and the other of the two fixed Contact pieces a second switching position can be set.

In a particularly advantageous embodiment, one of the two test buttons shows the switch position of the movable contact piece by being in a first switching position the contact spring assumes a first, retracted position (on position), and in one second switching position of the contact spring assumes a second position in which it protrudes from the level of the front housing cover (off position).

In a further particularly advantageous embodiment of the invention, the setting device to select the operating mode of the auxiliary switch so that it is without Removal of the auxiliary switch can be operated from the front. This will cause a toggle between the two operating modes very easily possible without work and costly removal of the auxiliary switch from the installation equipment carrier.

The inventive design of the actuator of the auxiliary switch forming switching mechanism can be found in claim 16. After that there is the core of the Invention in that the switching mechanism is a mechanical switching mechanism and made of movable Levers and / or brackets are formed, which are mounted on axles fixed to the housing, and has at least one drive lever and a transmission lever which on are mounted on a common axis and at least partially overlap.

Further advantageous refinements of the invention can be found in claims 17 to 35 remove. Thereafter, in an advantageous embodiment of the switching mechanism, at least a first and a second release lever are provided, which via coupling members are connectable to the triggering device of the installation switch, with the Release levers are formed on one or more active approaches that when the Release lever on at least one other of the movable levers of the switching mechanism act in such a way that it changes its position. The differently arranged release levers allow the auxiliary switch - without changes to the rear derailleur need to do - interact with various installation switches can, the trigger switch of the installation switch designed differently and can be arranged.

In a particularly advantageous embodiment, the individual levers and / or brackets the rear derailleur arranged in a modular manner so that individual levers without Impairment of the function and the functional interaction of the others Levers are removable, whereby by removing individual levers derailleur variants can be represented with different functionality. This makes it possible in highly automated production, product variants of the auxiliary switch on one and the same production line and without additional tools required.

In a further, particularly advantageous embodiment of the invention, the second Approach of the first release lever is divided perpendicular to its narrow side, whereby an additional second partial release lever is formed, which together with the first release lever is mounted on the same axis, the second partial release lever by means of the coupling member with the release element of the installation selector switch or the trigger lever of another auxiliary switch is connectable and at Triggering the triggering element of the installation selector switch the triggering movement transmits to the first release lever, and wherein the first release lever when actuated its movement on the second partial release lever by means of the second test button does not transmit. This ensures that in the event that several auxiliary switches are attached to an installation self-switch when the test button is pressed the auxiliary switch is only switched on this one auxiliary switch the movable contact and the movement of the release lever forced by the test button does not transfer to the release levers of the other coupled auxiliary switches.

The embodiment of an installation device according to the invention is claim 36 remove.

Further advantageous refinements and improvements of the invention are in the described further subclaims and result from the description and the attached drawings. All the features explained are not only in the respectively given combination, but also in other combinations or in Can be used on its own without leaving the scope of the invention.

Using the drawings, in which a total of three embodiments of the invention are shown below, the invention and further advantageous embodiments and improvements and further advantages of the invention are explained in more detail and to be discribed.

Fig. 1

eine Aufsicht auf den Hilfsschalter im Betriebsmodus "Hilfskontaktschalter" bei geöffnetem Gehäusedeckel, wobei der Betätigungshebel sich in "aus" - Stellung und das Schaltwerk in seinem zweiten Schaltwerkszustand befinden

Fig. 2

eine vergrößerte Ansicht des Schaltwerks in der Stellung gemäß Fig. 1

Fig. 3

eine Aufsicht auf den Hilfsschalter im Betriebsmodus "Signalkontaktschalter" bei geöffnetem Gehäusedeckel, wobei der Betätigungshebel sich in "ein" - Stellung und das Schaltwerk sich in seinem ersten Schaltwerkszustand befinden.

Fig. 4

eine Aufsicht auf eine Produktvariante des Hilfsschalters mit verminderter Funktionalität bei geöffnetem Gehäusedeckel

Fig. 5

eine Aufsicht auf den Hilfsschalter in der Variante mit geteiltem ersten Auslösehebel, bei geöffnetem Gehäusedeckel

Fig. 6

eine Ausschnittsvergrößerung aus Fig. 5, den Ausschnitt nahe der Gehäusefrontseite mit dem Betätigungshebel zeigend

Show it:

Fig. 1

a top view of the auxiliary switch in the operating mode "auxiliary contact switch" with the housing cover open, the operating lever being in the "off" position and the switching mechanism in its second switching mechanism state

Fig. 2

an enlarged view of the rear derailleur in the position shown in FIG .. 1

Fig. 3

a top view of the auxiliary switch in the "signal contact switch" operating mode with the housing cover open, the actuating lever being in the "on" position and the switching mechanism being in its first switching mechanism state.

Fig. 4

a top view of a product variant of the auxiliary switch with reduced functionality when the housing cover is open

Fig. 5

a top view of the auxiliary switch in the variant with a divided first release lever, with the housing cover open

Fig. 6

an enlargement of FIG. 5, showing the cutout near the front of the housing with the operating lever

FIG. 1 shows a top view of the auxiliary switch 100 with the housing open. The Auxiliary switch is housed in a double-shell insulating housing 101, which consists of mirror-shaped half-shells. The division level of the Switch housing whose thickness e.g. half the module width of the usual auto switches corresponds, runs at half the thickness parallel to the flat side of the auxiliary switch housing 101 and divides this into two equal halves, which are the individual parts of the auxiliary switch including terminals. The can be seen in Fig. 1 Groove 102 formed in the housing when mounting the auxiliary switch in an installation distributor accommodates a standard profile mounting rail (not shown). In the usual The position of the auxiliary switch in the installation distributor is at the top of the groove 102 lying, d. that is, on the visible front of the housing, represented by the direction of the arrow 103, test buttons 230 and 231 are located below an operating lever 210 of the auxiliary switch.

The switching state of the auxiliary switch shown in Figure 1 corresponds to the switched off State, the operating lever 210 is in the lower position.

The auxiliary switch 100 is designed as a changeover switch, one of which is located below Has access 180, via a contact spring 113 with a movable contact piece 110 is connected, and two overhead outlets 190, which are electrical Line connector 120 with first and second fixed contact pieces 112 and 111 are connected. With electrical contact between the movable contact piece 110 and the second fixed contact piece 111 a first switching position is defined, which in Also referred to as "on", and with electrical contact between the movable contact 110 and the first fixed contact 112 is a second Switch position determined, which will be referred to as "off" in the following.

The first test button 230 shows the switching position of the movable contact piece 110 by taking a first, retracted position in the "On" switch position, in which it is almost flush with the front narrow side of the housing 101, and in Switch position "Off" occupies a second position in which it is from the level of the front The housing cover protrudes visibly, as shown in Fig. 1.

The contact spring 113 is in the illustrated embodiment in a guide lever 140 added. The guide lever 140 has an elongated shape, it is composed of two parallel, horizontal end pieces, which are connected by a middle connecting web formed at an obtuse angle are. The left end piece has a bearing bush with which it can move on one Axle 137 fixed to the housing is mounted. There are two in the right end piece Essentially semicircular formations, which are opposite to each other with the round side and leave a gap between them that is slightly wider than the thickness of the contact spring 113. Between these two semicircular projections the contact spring 113 is movably guided.

In the "on" switch position, a driving lever 250 acts in its first driving position so on the contact spring 113 that the movable contact piece 110 on the second fixed contact piece 111 is pressed, as shown in Fig. 3.

In the switching position "off", the movable contact piece 110 is due to FIG. 1 the effect of a restoring force acting on the contact spring 113 in Direction applied to the first fixed contact piece 112, the driving lever 250 from the position taken in the first driving position under influence an active force is moved into the second, shown in Fig. 1, driving position. The restoring force on the contact spring 113 is in the embodiment shown applied by a first return spring 150 which, as shown in Fig. 1, itself with its fixed end on the inside of the housing 101 and with its free End from below presses against the right end piece of the guide lever 140.

Alternatively, the restoring force on the contact spring 113 could also be caused by the contact spring be generated by, for example, the contact spring as a preloaded leaf spring is trained.

The active force that moves the driving lever 250 from its first to its second driving position can be moved by the restoring force of the first return spring 150, by the restoring force of the contact spring 113 or by the restoring Force by an additional spring 155, as shown in Fig. 1, or by any combination be applied from it. The additional spring 155 in Fig. 1 consists of a spring piece bent about a shaft 131 fixed to the housing, which is in contact with a End supported on a housing-fixed projection 132 and in with the other end a pocket 251a attached to the driving lever 250 engages.

The test buttons 230, 231 have elongated recesses 235, those with elongated ones guide projections 236 fixed to the housing are engaged. This ensures that the test buttons are only in one direction when pressed Let it move perpendicular to the front of the housing.

The second test button 231, the lower of the two test buttons in FIGS. 1 and 2, has one Test lever 232, which is at right angles and inside along the front housing front is molded onto the second test button 231 and can act on the switching mechanism 200, wherein the second test button 231 can be actuated against the restoring force of a fourth spring 160 is, i.e. after pressing this test button takes its starting position again on. This fourth spring 160 is made of the same material as the test button itself, with its fixed end it is molded onto the test button 160 and is supported with its free end on the housing-fixed projection 132.

The first test button 230, the upper test button in FIGS. 1 and 2, has at its lower end an arm projection 237 formed at an angle of approximately 45 °, at the end of which a cylindrical one Driving lug 238 is molded into a corresponding elongated hole Recess 251 in the driving lever 250 can be brought into engagement, thereby a rotational movement of the driving lever 250 into a corresponding vertical lifting movement the first test button 230, or a vertical stroke movement of the first test button 230 can be converted into a rotary movement of the driving lever 250, as shown in the enlarged representation in FIG. 2 and in FIG. 3. 3 is the Test button 230 shown in the retracted position, the driving lever 250 is after pivoted below in its first driving position. The take-along approach 238 am Arm projection 237 of the first test button 230 is located on a right stop of the slot-shaped recess 251. When transitioning to the second driving position, whose end position is shown in Fig. 1, the driving lever 250 pivots against the Clockwise, the slot-shaped recess 251 in the driving lever 250 becomes moved upwards from their previously occupied position on a circular path, whereby the first test button 230 is also pushed up and the entrainment approach 238 in the slot-shaped recess 251 towards the right stop is moved.

In this way, the upper test button 230 shows the respective switching state of the auxiliary switch assumes an additional function as an optical switching status indicator. This display function can be supported by the fact that the visible Front of the upper test button in color from the housing and the lower test button 231 is lifted off.

With reference to Figures 2 and 3 will now be the function of the as an actuator acting switching mechanism 200 described. The rear derailleur 200 is on mechanical rear derailleur and is made of movable levers and / or brackets 250 (driving lever), 260 (transmission lever), 220 (first release lever), 225 (second release lever), 290 (ratchet lever), 280 (driving handle), 210 (operating lever), 300 (eccentric) formed, which are mounted on axles 130, 139, 135, 137 fixed to the housing.

The driving lever 250 has a substantially triangular shape, wherein he a locking lug 252, a lever extension 253, a rectangular recess 254 for receiving a second return spring 170, an oval-shaped recess 251 for Pick-up attachment 238 of the first test button 230, one vertically after top guide pin 263, and an upwardly extending, Arc-shaped recess 255 with a first locking projection introduced therein 256 has.

The transmission lever 260 has a triangular basic shape and has two laterally formed extensions 261a and 261b. He points near the triangular base an elongated and arcuate recess 257 therein introduced second locking projection 265. Near the triangle's center of gravity it has an arcuate slot 264, which the Guide pin 263 of the driving lever 250 receives.

Driving lever 250 and transmission lever 260 are on a common housing-fixed Axle 135 mounted, partially overlap and are around each other the axis 135 rotatable. A relative rotation of transmission lever 260 and Driving lever 250 is on the given by the arcuate slot 264 Angular range limited. Due to the restoring force of the second return spring 170 in the recess 254, the driving lever 250 clockwise and the transmission lever counterclockwise until the guide pin stops 263 applied to the upper narrow side of the elongated hole 264, whereby the Preferred position of transmission lever 260 and driving lever 250 against each other is set. Furthermore, the transmission lever 260 is relative to the driving lever 250 so mounted on the common axis 135 that between the recess 257th of the transmission lever 260 and the recess 255 of the driving lever 250 arcuate guide trough 270 for receiving and guiding the toggle lever 281 of the take-along bracket 280.

The pawl lever 290 is formed from an elongated arm, that at its upper A bearing bush is formed on the narrow side, with which it is fixed in a housing Axis 139, which is located near the front of the housing in the area of the two terminals, is movably mounted. At the end opposite the bearing is on the arm a locking lug 291 is formed. The restoring effect acts on the arm of the ratchet lever 290 Force of the spring 292, which with its fixed end on the inner wall of the housing supports and with its free end in the upper third on the arm of the ratchet lever 290 attacks. Due to the restoring force of the spring 292, the pawl lever 290 deflected from a position parallel to the narrow side of the housing into a position in which it forms an acute angle with the narrow side of the housing, causing the catch 291 at the lower end of the arm against the catch 252 on the driving lever and can snap with it. In the bearing axis 139 facing third of the longitudinal arm of the pawl lever 290 is an at an angle of 90 ° Shaped cross arm, which points into the interior of the housing and an anvil-like at its end Has broadening.

The first release lever 220 is U-shaped and has a first lateral one Approach 221, a second side approach 222 and a centrally located bearing bush with which it is centered in a housing-fixed axis 130 near the upper Housing cover is rotatably mounted. The second release lever 225 is a longer one Lever arm formed, the one facing the mounting level One-sided end in a housing-fixed axis near the center of the narrow housing side is stored. The first release lever 220 is via a cylindrical coupling member 212 and the second release lever 225 via a cylindrical coupling member 213 with the Tripping device of the installation self-switch can be connected, with the release levers 220, 225 one or more active approaches are formed, which when pressed the release lever on at least one other of the movable levers of the switching mechanism act in such a way that it changes its position. In the embodiment shown act the first trigger lever 220 via the upper extension 261a and lower trigger lever over the lower extension 262b onto the transfer lever 260 so that you turn it counterclockwise. The coupling links 212 and 213 point perpendicularly into the drawing plane of FIG. 2, they are in FIG. 2 in Top view shown as a circle.

The setting device 240 for selecting the operating mode "signal contact switch" or eccentric 300 forming "auxiliary contact switch" is close to the housing-fixed axis 139 rotatably mounted cylinder formed with a laterally formed, triangular Guide nose. In the operating mode "auxiliary contact switch", the cylinder is turned so that the guide nose points in the direction of the mounting plane, due to the spatial proximity of the guide nose the cross arm of the latch lever 290 in a Position parallel to the long sides of the housing. About the leverage elongated arm of the ratchet lever against the restoring force of the spring 292 placed in a position parallel to the narrow side of the housing and held there, so that do not lock the catches 291 of the pawl lever 290 and 252 of the driving lever 250 can. This position of the eccentric 300 is shown in FIG. 5. In operating mode "Signal contact switch", the cylinder of the eccentric is rotated so that the guide lug in the direction of the narrow side of the housing with one clamp, whereby the pawl lever 290 is released and thus acted upon by the return spring 292 is that the locking lugs 291 of the pawl lever 290 and 252 of the driving lever 250th can lock.

In a further possible embodiment, which is not shown here as a figure, the Eccentric 300 of the adjustment device 240 accessible from the front of the housing and adjustable by tool or manually. This allows the operating mode of the Auxiliary switch can be set from the front without removing the auxiliary switch.

The actuating lever 210 is designed as an elongated arm, which is centered over a Bearing bush on the housing-fixed axis 130 - together with the first release lever 220, but mechanically decoupled from it - is rotatably mounted. On his it has a cylindrical recess on the end facing the housing can be inserted into the coupling elements 211, which are cylindrical on both sides, and by form and / or Friction can be attached. The actuating lever is located above the coupling members 211 with the manual actuator of the installation switch. The actuating lever has a cylindrical recess at its lower end to accommodate the carry handle 280.

The driving bracket 280 is a metallic, elongated cylindrical body, the End pieces on each side are bent into an L-shape, creating one on each side Knee lever 281 is formed. In Figures 1, 2 and 3, these toggle levers point vertically into the drawing plane and are marked by circular areas.

The operating lever 210 is in the "on" position - this position is shown in Figure 3 -, the toggle lever 281 of the carrier bracket 280 is in the arranged two recesses of the transmission lever and the driving lever that he in this first, latched position on the first locking projection 256 of the driving lever 250 is supported and the driving lever 250 in the first driving position - pressing down against the contact spring - holds, being through the second Locking projection 265 of the transmission lever 260 a lateral evasion of the driving bracket 280 is prevented. The operating lever is in position "Switched off" - this position is shown in FIG. 1 - is the carrier bracket 280 swiveled to the side in a second, unlocked position, with the carry handle 280 in this unlocked position due to the relative position of the two Cutouts on the driving and transmission levers are given to each other Guide trough 270 is freely movable and that predetermined by the guide trough 270 can follow the trigonometric path. This allows the drive lever 250 in move the second driving position upwards, releasing the contact spring.

The operating lever 210 is in the "off" position and is the ratchet lever 290 via its locking lug 291 with the locking lug 252 of the driving lever 250 locked, the driving lever 250 is due to this locking against the effective force held in the second driving position.

The rear derailleur 200 is in the first rear derailleur state and the operating lever 210 in the "switched on" position, actuating at least one of the Release lever 220 and / or 225 that the or the molded on the respective release lever Active approaches to the side extension (s) 261 of the transmission lever 260 act so that the transmission lever 260 about its axis in Is turned clockwise. This rotary movement makes the second locking projection 265 of the transmission lever 260 as far from the toggle lever 281 of the carry handle 280 lifted that the driving bracket 280 the first locking projection 256 of the driving lever 250 can dodge sideways and the driving lever 250 through the Active force can be brought into the second driving position. Is the ratchet lever at the same time 290 via its locking lug 291 with the locking lug 252 of the driving lever 250 locked, so act - regardless of the position of the operating lever 210 Operate at least one of the trigger levers 220, 225 or the trigger lever molded active approaches on the latch lever 290 so that the latching is released against the restoring force of the third spring 292, the effective approaches can be formed on the release lever (s) 220, 225 so that the solution the locking either at the same time as the rotary movement of the transmission lever 260 or shortly before or shortly after.

The rear derailleur 200 is in the first rear derailleur state and the operating lever 210 in the "switched on" position, pressing the second test button 231 that this is so on at least one of the Release lever 220, 225 acts that this same movement as when actuated is impressed by the coupling member 212, 213 attached to it, whereby the one or more molded approaches on the release lever 220, 225 on the or lateral extensions 261 of the transmission lever 260 act so that the transmission lever 260 is rotated clockwise about its axis 135, whereby by this rotational movement of the second locking projection 265 of the transmission lever 260 so is lifted far from the toggle lever 281 of the driving bracket 280 that the driving bracket 280 sideways dodge the first locking projection 256 of the driving lever can and the driving lever 280 under the action of the active force in the second Take position is transferable. In other words, pressing the second test button 231 triggers the same effect as actuating the release lever via the coupling elements attached to them.

If the switching mechanism 200 is in the second switching mechanism state (FIG. 1), it causes the actuation of the first test button 230 that its vertical deflection over the a recess 251 in the driving lever 250 engaged on the test button 230 integrally formed arm projection 237 in a rotational movement of the driving lever 250 is implemented clockwise, whereby the driving lever 250 out of its second driving position into its first driving position and the rear derailleur 200 in its first switchgear state - as shown in FIG. 3 becomes.

In a further embodiment, shown in FIGS. 5 and 6, is the second approach the first release lever 220 divided perpendicular to its narrow side, it a new second extension 222a of the first trigger lever 220 is formed and an additional one second partial release lever 220a. The second partial trigger lever 220a is together is mounted with the first release lever 220 on the same axis 130, wherein the second partial release lever 220a by means of the coupling member 212 with the release member the automatic installation switch or the trigger lever of another auxiliary switch is connectable. The second extension 222a has a half-shell shape at its end piece Formation 222b on. The end of the partial trigger lever 220a from the half-shell-shaped projection 222b of the second extension 222a of the first Release lever 220 includes. In this way, the partial trigger lever 220a takes one Counterclockwise deflection with the release lever 220. However, will the trigger lever 220 is deflected counterclockwise, for example by actuation the second test button 231, its half-shell shaped end piece is released from the partial release lever 220a and this remains in its position. When the The trigger element of the installation selector switch is thus transmitted by the partial trigger lever 220a transfers the trigger movement to the first trigger lever 220, but the first Release lever 220 its movement when actuated by the second test button 231 not on the second partial release lever 220a. Are several auxiliary switches side by side arranged and connected to each other via their coupling members, so now achieved that when pressing the test button 231 of an auxiliary switch does not turn on at the same time all auxiliary switches the auxiliary circuit is checked, but only on the device whose Test button was pressed.

The coupling members 212, 213 for connecting the at least two trigger levers the triggering device in the installation self-switch are cylindrical Metal pins designed and releasable with the friction and positive connection Release levers 220, 220a, 225 connectable, whereby they can be attached that the connection of the auxiliary switch 220 to the installation circuit breaker either on the right or left side of the auxiliary switch. You may need to do this Openings at the appropriate point in the outer wall of the auxiliary switch be made.

The coupling members 212, 213 for connection to the triggering element in the automatic installation switch are particularly attachable to the auxiliary switch so that the auxiliary switch with different installation self-switches, the triggering elements on different Positions are arranged, is functionally connectable. For example, at a circuit breaker, the position of the coupling member with the release member are at a position that corresponds to the position of the first coupling member 212 on the auxiliary switch. When connecting the auxiliary switch with such a circuit breaker the coupling member 213 is removed. With a residual current circuit breaker in turn, the position of the coupling member with the release member on one Position are the position of the second coupling member 213 on the auxiliary switch corresponds so that when connecting the auxiliary switch with such a residual current circuit breaker the coupling member 212 is removed.

The auxiliary switch described with its mechanical switching mechanism is characterized by this from that the individual levers and / or brackets (250, 260, 220, 225, 290, 280, 210, 240) of the switching mechanism 200 are arranged in a modular manner and with one another interact that individual levers without impairing the function and the functional Interaction of the other levers are removable, being removed by that single lever derailleur variants with different functionality can be represented. 4 shows a variant of the auxiliary switch described, at the test buttons 230, 231, the ratchet lever 290 and the second trigger lever 225 have been removed. The operating lever 210, the first trigger lever 220, the carry handle 280, however, the transmission lever 260 and the driving lever 250 remain unchanged at their positions and work together as shown above. The auxiliary switch shown in Fig. 4 thus has the simplified functionality "auxiliary contact switch for mounting on circuit breakers, without test function ". In the housing of the Auxiliary switches according to FIG. 4, openings are only made at the necessary points, there is no recess in the test button positions in particular Housing available. 4 represents the simplest form of a Auxiliary switch. Adding the first test button 230 would the function "test Auxiliary contact switch ". Other variants are conceivable, but not here detailed.

Claims (36)

Auxiliary switch that can be attached to an installation switch, in particular an installation self-switch, which has at least one movable (110) and at least a first (112) and a second (111) fixed contact piece, wherein the movable contact piece is attached to a contact spring (113) and can be acted upon by an actuating device which is actuated via an actuating lever (210 ) cooperates with a first (211) and via at least one release lever (220) with at least one second coupling member (212), which is connected to the installation switch or further parallel auxiliary switches via the coupling members, the connection between the operating lever of the auxiliary switch and / or the operating lever of further auxiliary switches and / or the manual operating element of the installation switch and the at least second coupling member being connected via the first coupling member Connection between the at least one trigger lever of the auxiliary switch and / or the trigger lever or levers of further auxiliary switches and / or the trigger member of the installation switch is established, the actuating lever of which can assume at least the two positions "switched on" and "switched off", which can be operated either in the operating mode signal contact switch or auxiliary contact switch for switching auxiliary circuits, the respective operating mode being adjustable from the outside via an adjusting device, and which has at least one test button for checking its function or the function of the auxiliary circuit or circuits, characterized, that the actuating device of the auxiliary switch is formed from a switching mechanism (200), that the switching mechanism acts on the contact spring (113) via a driving lever (250), so that in a first switching mechanism state the movable contact piece (110) is brought into electrical contact with the second fixed contact piece (112) and in at least a second switching mechanism state the driving lever (250 ) is released again by the switching mechanism (200), that the auxiliary switch (100) has two test buttons which can be operated by hand or by means of a tool, and that each of the two test buttons is assigned a switching mechanism state, from which the switching mechanism changes to the respective other state by actuating the test button, without influencing the position of the actuating lever (210). Auxiliary switch according to Claim 1, characterized in that the auxiliary switch (100) is designed as a changeover switch which has an access (180) which is connected to the movable contact piece (110) via the contact spring (113) and two outlets (190) , which are connected via electrical line connectors (120) to the first and second fixed contact pieces (112, 111), wherein in the case of electrical contact between the movable contact piece (110) and one of the two fixed contact pieces (112, 111) a first switching position and at electrical contact between the movable contact piece (110) and the other of the two fixed contact pieces (112, 111) is in a second switching position and are fixed. Auxiliary switch according to claim 1 and / or 2, characterized in that the first test button (230) indicates the switching position of the movable contact piece (110) by assuming a first, retracted position in a first switching position of the contact spring (113), and in a second switching position of the contact spring (113) assumes a second position in which it protrudes visibly from the plane of the front housing cover. Auxiliary switch according to one of Claims 1 to 3, characterized in that the movable contact piece (110) is acted upon by the action of a restoring force in the direction of the first of the two fixed contact pieces (111). Auxiliary switch according to one of claims 1 to 4, characterized in that in a first driving position the driving lever (250) acts on the contact spring (113) in such a way that the movable contact piece (110) counteracts the restoring force on the second fixed contact piece (112) is pressed. Auxiliary switch according to one of claims 1 to 5, characterized in that in the second switching state, the contact spring (113), under the action of the restoring force, presses the movable contact piece (110) against the first fixed contact piece (111), the driving lever (250) coming from the in the first driving position taken under the influence of an active force is moved to a second driving position. Auxiliary switch according to one of the preceding claims, characterized in that the setting device for selecting the operating mode is mounted in such a way that it can be operated from the front without removing the auxiliary switch. Auxiliary switch according to one of the preceding claims, characterized in that the contact spring (113) is movably mounted in a guide lever (140) on an axis (137) fixed to the housing, and in that the action of a first return spring (150) causes a return force on the contact spring ( 113) acts. Auxiliary switch according to claim 7, characterized in that the contact spring (113) is movably mounted in a guide lever (140) on an axis (137) fixed to the housing, and in that the movable contact piece (110) by the action of the restoring force of the contact spring (113) is applied towards the first of the two fixed contact pieces. Auxiliary switch according to one of the preceding claims, characterized in that the active force is applied to the driving lever (250) by the restoring force of the first restoring spring (150) and / or by the restoring force of the contact spring (113). Auxiliary switch according to one of the preceding claims, characterized in that the active force on the driving lever (250) is applied by the restoring force of a fifth restoring spring (155). Auxiliary switch according to one of the preceding claims, characterized in that the test buttons (230, 231) have elongated recesses (235) which engage with elongated guide projections (236) fixed to the housing. Auxiliary switch according to claim 12, characterized in that the second test button (231) has an angularly shaped test lever (232) which can act on the switching mechanism, the second test button (231) being operable against the restoring force of a fourth spring (160). Auxiliary switch according to claim 13, characterized in that the fourth spring (160) consists of the same material as the test button itself and is molded onto the test button (160). Auxiliary switch according to one of the preceding claims, characterized in that the first test button (230) has an arm projection (237) formed at an angle at its lower end, at the end of which a driving projection (238) is formed, which is in a corresponding recess in the driving lever (250 ) can be brought into engagement, whereby a rotary movement of the driving lever (250) can be converted into a corresponding vertical lifting movement of the first test button (230), or a vertical lifting movement of the first testing button (230) into a rotating movement of the driving lever (250). Switch mechanism for an auxiliary switch, in particular for an auxiliary switch of the type according to one of Claims 1 to 15, characterized in that the switch mechanism (200) is a mechanical switch mechanism and consists of movable levers and / or brackets (250, 260, 220, 225, 290, 280, 210, 240) is formed, which are mounted on axles (130, 139, 135, 137) fixed to the housing, and has at least one driving lever (250) and a transmission lever (260) which on a common axis (135) are stored and overlap at least partially. Switch mechanism according to claim 16, characterized in that at least a first (220) and a second (225) release lever are provided, which can be connected to the release device of the installation switch via coupling members (212, 213), wherein on the release levers (220, 225) one or more active approaches are formed which, when the triggering lever is actuated, act on at least one further of the movable levers of the switching mechanism so that it changes its position. Rear derailleur according to claim 17, characterized in that the driving lever (250) has an essentially triangular shape, wherein it has a latching lug (252), a lever extension (253), a rectangular recess (254) for receiving a second return spring (170), has an oval-shaped recess (251) for receiving the catch (238) of the first test button (230), and has an upwardly longitudinal recess (255) with a first locking projection (256) inserted therein. Rear derailleur according to claim 16 to 18, characterized in that the transmission lever (260) has a longitudinal recess (257) with a second locking projection (265) inserted therein, the transmission lever (260) relative to the driving lever (250) on the common Axis (135) is mounted so that a guide groove (270) for receiving and guiding the toggle lever (281) of the driving bracket (280) is formed between the recess of the transmission lever (257) and the recess of the driving lever (255). Rear derailleur according to claims 16 to 19, characterized in that the rear derailleur (200) has a T-shaped latch lever (290), which is movably mounted in an axis (139) fixed to the housing and has a molded catch (291), which is actuated by the restoring force of a third spring ( 292) is acted upon in the direction of the housing interior, its latching lug (291) being latchable with the latching lug of the driving lever (252). Switch mechanism according to claim 16 to 20, characterized in that the setting device for selecting the operating mode "signal contact switch" or "auxiliary contact switch" is designed as an eccentric (300) and acts on the latch lever (290) in such a way that in the operating mode "auxiliary contact switch" the latch lever ( 290) is held in a position near the inner wall of the housing in such a way that the latching lugs of the latch lever (291) and the driving lever (252) cannot latch, that in the operating mode "signal contact switch" the latch lever (290) is released and released by the third return spring (292) is acted on in such a way that the latching lugs of the pawl lever (291) and of the driving lever (252) can latch. Switch mechanism according to claim 16 to 21, characterized in that the eccentric (300) is accessible from the front of the housing and is adjustable by means of tools or manually. Switch mechanism according to claims 16 to 22, characterized in that the actuating lever (210) is mounted on an axle (130) fixed to the housing and is movably connected to a driving bracket (280) with an integrally formed toggle lever (281), the actuating lever (210) via the driving bracket (280) is coupled to the driver (250) and / or transmission lever (260) of the rear derailleur. Rear derailleur according to claim 16 to 23, characterized in that when the operating lever (210) is in the "switched on" position, the toggle lever (281) of the driving bracket (280) is arranged in the two recesses of the transmission and driving levers such that it is in a first, latched position is supported on the first latching projection (256) of the driving lever (250) and thereby holds the driving lever (250) in the first driving position, wherein the second latching projection (265) of the transmission lever (260) causes the driving bracket to deflect sideways (280) is prevented, and that when the operating lever (210) is in the "off" position, the driving bracket (280) is laterally pivoted in a second, unlocked position, the driving bracket (280) being in the unlocked position in the position by which relative position of the two recesses on the driving and transmission lever to each other predetermined guide trough (270) fr egg, is movable and can follow the trigonometric path predetermined by the guide trough (270), whereby the driving lever (250) can move into the second driving position. Rear derailleur according to claim 16 to 24, characterized in that when the operating lever (210) is in the "switched off" position and the latch lever (290) latched with the catch (252) of the driving lever (250), the driving lever (250) due to the latching with the Pawl lever (290) is held against the active force acting on it in the second driving position. Rear derailleur according to claims 16 to 25, characterized in that the transmission lever (260) has at least as many side extensions (261) as there are release levers (225, 220) in the rear derailleur, each of the release levers (225, 220) thus being actuated on the corresponding extension (261) of the transmission lever (260) acts in that the transmission lever (260) is thereby rotated about its axis of rotation (135). Switch mechanism according to claims 16 to 26, characterized in that the first release lever (220) is mounted on the same axis (130) as the actuating lever (210), and has a first (221) and a second (222) side extension. Rear derailleur according to claims 16 to 27, characterized in that when the rear derailleur is in the first rear derailleur state and when the operating lever (210) is in the "switched on" position, by actuating at least one of the release levers (220, 225) the one or more molded-on approaches on the release lever act on the side extension (s) (261) of the transmission lever (260) in such a way that the transmission lever (260) is rotated about its axis, the second latching projection (265) of the transmission lever being rotated as far from the toggle lever (281) by the rotary movement Carrier bracket (280) is lifted so that the carrier bracket (280) can laterally dodge the first locking projection (256) of the carrier lever (250) and the carrier lever (250) can be moved into the second carrier position by the active force. Switchgear according to claim 28, characterized in that when the switchgear is in the first switchgear state and at the same time the ratchet lever (290) is locked with the catch (252) of the driving lever (250), regardless of the position of the actuating lever (210), by actuating at least one the release lever (220, 225) of the active lugs or molded lugs on the release lever act on the ratchet lever (290) in such a way that the locking is released against the restoring force of the third spring (292), the active lugs on the release lever (s) (220, 225) are molded in such a way that the release of the latching takes place either simultaneously with the rotary movement of the transmission lever (260) or shortly before or shortly thereafter. Switch mechanism according to claim 28, characterized in that in the first switch mechanism state, by actuating the second test button (231), via the test lever (232) molded onto it, it acts on at least one of the release levers (220, 225) in such a way that the same movement as in an actuation is impressed by the coupling member (212, 213) attached to it, as a result of which the active lug (s) formed on the release lever (220, 225) act on the lateral lug (s) (261) of the transmission lever (260) in such a way that the transmission lever (260) is rotated about its axis (135), the second locking projection (265) of the transmission lever (260) being lifted so far from the toggle lever (2819 of the driving bracket (280) that the driving bracket (280) is the first Can detent projection (256) of the driving lever laterally and the driving lever (280) can be moved into the second driving position under the action of the active force. Switch mechanism according to claims 16 to 30, characterized in that in the second switch mechanism state, by actuating the first test button (230), its vertical deflection via the arm attachment, which is formed on the test button (230) and engages with a recess (251) in the driving lever (250) (237) is converted into a rotary movement of the driving lever (250), as a result of which the driving lever (250) is transferred from its second driving position to its first driving position and the switching mechanism (200) is brought into its first switching state. Switch mechanism according to Claims 16 to 30, characterized in that the second extension (222) of the first release lever (220) is divided perpendicular to its narrow side, in that an additional second partial release lever (220a) is formed, which together with the first release lever ( 220) is mounted on the same axis (130), the second partial trigger lever (220a) being connectable to the triggering element of the installation self-switch or the triggering lever of another auxiliary switch by means of the coupling member (212) and the triggering movement when the triggering element of the installation self-switch is triggered transfers to the first release lever (220), and the first release lever (220) does not transmit its movement to the second partial release lever (220a) when actuated by the second test button (231). Switch mechanism according to claims 16 to 31, characterized in that the coupling members (212, 213) for connecting the at least two release levers to the release device in the automatic installation switch are designed as cylindrical metal pins, which can be detached from the release levers by a frictional and / or positive connection (220, 220a, 225) can be connected, and they can be attached in such a way that the connection of the auxiliary switch (220) to the installation automatic switch takes place either on the right or the left side of the auxiliary switch. Switchgear according to Claims 16 to 32, characterized in that the coupling members (212, 213) for connection to the triggering element in the installation self-switch can be attached to the auxiliary switch (200) in such a way that the auxiliary switch (200) with different installation self-switches, their triggering elements are arranged at different positions, can be functionally connected. Switchgear according to Claims 16 to 32, characterized in that the individual levers and / or brackets (250, 260, 220, 225, 290, 280, 210, 240) of the switchgear (200) are arranged in a modular manner and interact with one another, that individual levers can be removed without impairing the function and the functional interaction of the other levers, wherein by removing individual levers, derailleur variants with different functionality can be represented. Installation device, characterized in that one or more auxiliary switches (100) according to the preceding claims can be attached to it at different points, with all attached auxiliary switches being able to be operated simultaneously and in parallel if more than one auxiliary switch is attached.

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