EP1135785B1 - Time switch with an electric switch mechanism - Google Patents

Abstract

The invention relates to a time switch (1) with at least one first and one second elastic spring element (22, 23) that are both provided with at least one switch contact (24, 25). The time switch further comprises a rotation-driven drum controller (3) that is provided with a plurality of adjustable switch elements (11, 12) which displace a switch lever (13) from an inactive initial position to a switching position, thereby triggering a switch operation of the spring elements (22, 23) with their switch contacts (24, 25). When the drum controller (3) continues to rotate, the switch lever (13) abruptly falls back into its initial position, thereby abruptly disrupting the switch contacts (24, 25). In order to effect an abrupt closure of the switch contacts (24, 25), a locking lever (35) is provided between the spring elements (22, 23) which, in a first switch phase and under the effect of a pre-stress, maintains the two spring elements (22, 23) at a certain distance to the switch contacts (24, 25) and which, during a second switch phase, abruptly releases the second spring element (23) so that it can abruptly close the switch contacts (24, 25).

Description

The invention relates to a timer with at least one first and a second elastic spring element, each are provided with at least one switching contact, and with a rotationally driven shift drum that has several with respect to a rotatably mounted shift lever in each case either in an effective or ineffective switch position Has adjustable switching elements through which the Shift lever from an inactive starting position to a rotating Switch position is deflected and the first spring element with its switching contact to carry out a switching operation with the switching contact of the second spring element brings in contact, and with further rotation of the Shift drum of the shift lever for sudden separation of the Switch contacts suddenly return to their starting position.

DE 27 54 212 B1 is a time switch of the generic type Kind known, which at least a first and a has second switching contact, which on a first and a second, elastic approximately leaf spring-like spring element angeordnet.sind. This time switch is used as a shift drum a double switch star that can be driven in one direction of rotation provided the two coaxial, by half a tooth pitch has shift sprockets offset from one another. This Gear rims are provided with ratchet teeth, each for one or more spring elements of the switch contacts Operate a switching operation suddenly. To make switching times as precise as possible without any adjustment work to be able to reach are between the Gear rims and the spring elements to be actuated in each case of the switching contacts shift lever provided, each for itself by a molded on the shift lever Directional locking nose in one of the gear ratchets of the double shift star intervention. Through the gear rims the shift levers are alternately or successively deflected and fall after a ratchet tooth of each Gear ring on the respective directional locking nose of the respective shift lever has passed suddenly or suddenly back to their starting position, which causes a sudden or sudden switching operation becomes.

The switching times that can be achieved with this known time switch are, are - essentially by the number of existing ratchet teeth on the staggered Gear rims specified. different Switching times can only be done with this timer by changing the switching tooth limit. This means, that in this known timer precise Shift times are achievable because of the corresponding shift levers suddenly or suddenly to their starting position fall behind and thus the respectively assigned elastic Spring element of a switch contact also suddenly is operated. Different switching times, however, leave don't adjust.

However, such different switching times for different To be able to set tasks Time switches have become known, such as from DE 28 13 069 C2, in which a shift drum is used. The shift drum is provided with shifting elements that are made of an effective position switchable to an ineffective position are. In the effective position, the Switching elements during the rotation of the shift drum Shift lever operated, which in turn one Microswitch activated. The number of adjustable Accordingly, switching times are only based on the number the switching elements arranged on the circumference of the shift drum dependent. The greater this number of switching elements, the more the switching distances between the individual are smaller Switching operations adjustable. The shift lever is on this one known time switch designed as a double-armed scanning lever, which by a spring against a switching plunger of the Microswitch is held. Through the switching elements the scanning lever against a spring force from an initial position deflected into a switching position so that the microswitch is actuated via its switching plunger. are several switching elements switched to their active position, so the scanning lever slides in its effective position on the peripheral surface of these switching elements during the rotation of the shift drum along until one or more Switching elements are reached which are in an inactive position are switched. At the end of the last active switching element the sensing lever suddenly falls back into his Starting position back so that the microswitch at this switching operation is suddenly opened again or is switched to its initial position. In the further Turning the shift drum runs the scanning lever with a Switch nose again against an actively switched switching element and is relatively slow in starting from its shift position deflected. The disadvantage here is that the microswitch during this extremely slow movement of the Shift lever is also operated extremely slowly, so that its switching position or switching time is only extremely is imprecise.

To a sudden switching of the actual Reaching switches are now so-called Snap switch become known (DE 38 25 308 A1), which work according to the principle of deadlock. These switches are provided with a rocker switch, which by the shift lever is switched. Because the one switching direction of the shift lever done suddenly by the shift lever itself, if this falls back into its starting position, it is Switch position can be predetermined quite precisely. However at Opening of the shift lever on an actively switched Switching element, is the time at which the rocker switch suddenly from her inactive position to her active one Position switched, cannot be determined exactly. Therefore have switching devices with such snap switches adjustment devices with which the exact switching time must be set. Furthermore, the whole electrical power with such a rocker switch Transfer snap switch via the bearing of the rocker switch, which leads to erosion of the bearing at higher switching currents leads itself. This in turn means that the snap switch with its rocker switch is subject to increased wear. Furthermore, when you close this snap switch the switching forces are extremely low, so that an optimal Contact closure of the snap switch cannot be reached safely is.

Accordingly, the invention has for its object a To improve the time switch of the generic type in such a way that using elastic spring elements with switch contacts, both variably adjustable switching times as also a precise setting option for both switching operations or switching times, i.e. both when turning on as well as when switching off the electrical switch are.

The object is achieved in that a Locking lever is provided, which during the closing process by the first spring element actuated by the shift lever is moved in the direction of the second spring element, and that the locking lever during a first switching phase of Closing process in a locked position by a latch positively engaged with the second spring element stands and the two spring elements with their switching contacts biased at a predetermined distance from each other holds, and that the locking lever during a second, switching phase following the first switching phase from its locked position by at least with the locking lever actively connected during the second switching phase Deflection element is deflected and the second spring element of the second switching contact for the sudden Closing the switch contacts suddenly releases.

The inventive design of the timer precise switching of the switching contacts for switching on and off of a consumer at predetermined times ensured. For this purpose, a locking lever is provided, which during the closing process by the one operated by the gear lever first spring element in the direction of the second spring element is moved. During a first switching phase this closing movement of the first spring element stands Locking lever via a locking lug with the second spring element in a positive connection, so that the second spring element with its switching contact in a predetermined Distance to the switching contact of the first spring element kept becomes. That that the locking lever during this first Switching phase of the closing process is in a locked position and by means of the locking lug with the second Spring element is engaged. The two spring elements are with their switching contacts under tension in the predetermined distance from each other. With another Rotation of the shift drum follows this first Switching phase a rectified second switching phase, in which the locking lever from its locked position by a with the locking lever at least during the second switching phase deflecting element in operative connection is deflected. Through this deflection, the locking or locking Connection between the locking lug of the locking lever the second Spring element of the second switching contact, for example by swiveling out the locking lever for a sudden Closing of the switch contacts abruptly canceled.

That is, this locking lever is arranged so that it is in a locked position in the first switching phase, in which the two spring elements with their switching contacts by the locking lever under prestress in the predetermined Be kept apart. The locking lever stands with the first spring element of the second switching contact latching into engagement. In this first switching phase the shift lever is activated by a switching element the rotationally driven shift drum due to the extremely low rotation per unit time of the shift drum deflected extremely slowly. This deflection will first spring element of the first switching contact through the Shift lever in the direction of the second spring element of the second switching contact moves slowly. The two switch contacts of the first spring element and the second spring element but can due to the between the spring elements locking lever lying in the locked position do not come into contact with each other. At the end of this first Switching phase, both spring elements are under a certain spring elastic preload. At the beginning of a second Switching phase, which is immediately on the first Switching phase follows, the locking lever increases with increasing Adjustment movement of the spring elements from its locked position deflected. At the end of this second switching phase, the Locking lever the second spring element of the second switching contact free, so that the switching contacts suddenly conclude. the locking lever is deflected via a deflection element, which, depending on the arrangement and storage of the Locking lever, for example a fixed adjusting pin or can also be a kind of ramp, along which or which the locking lever during the second switching phase of the closing movement slides open.

As is known, the actual one in such time switches Shift lever on a touch finger, which on the peripheral surface of the shift drum. The switching elements of a such shift drum steer this switching nose radially Shift drum outwards, see above. that the gear lever one Performs pivoting movement through which the switching process the spring elements with their switching contacts is effected. The deflection is usually extremely slow because the Switch nose forms a kind of ramp with which it leads to it Deflection along an active switching element during the slow rotation of the shift drum outwards slides. As a rule, several shift elements of the shift drum are active, this active switching position remains of the shift lever until the last active switching element on the switching nose of the shift lever has moved past. Immediately after the Brush the end edge of the last switching element past the switching lug , this switching nose suddenly falls again radially inwards, so that the gear lever suddenly falls back into its starting position. Because of this Sudden falling back suddenly becomes sudden the first spring element of the first switching contact again released so that this is back in its starting position moved back. The locking lever locks during the reset in the starting position again on the second spring element on, so that another switching operation to close the Switch contacts can be initiated.

Due to the configuration according to the invention, the Switching times for switching on and off, i.e. to the Closing or for disconnecting the switch contacts, extremely precise be predetermined. There may be additional ones in particular Adjustment devices for determining these switching times to be dispensed with. Because of the quick closing and Opening the switch contacts is also a considerable less erosion of the switching contacts themselves achieved. Also can by interpreting the strength of the spring elements or the elasticity of these spring elements also the switching forces or the contact forces between the switch contacts can be clearly determined in a simple manner, so that a optimal contact closure is always guaranteed.

By design according to claim 2 is the invention Timer for precise switching of the energy supply from one consumption to a second consumer used. This is the first and second spring element a third spring element with a third switch contact assigned that with its switching contact as long as one fourth switching contact arranged on the second spring element is in permanent electrical contact until the second Spring element from the locking lever during the second switching phase is suddenly released. To switch to the Energy flow via the second spring element from the third spring element to switch to the first spring element is the Provide locking lever with a shift finger through which the third spring element after the sudden release of the second spring element with its third switch contact in a predetermined distance from the fourth switching contact of the second spring element is held. After this sudden Switching process is thus the contact between the first switching contact of the first spring element and the second switching contact of the second spring element closed, during the contact between the third switch contact of the third spring element and the fourth switching contact of the second spring element is open.

According to claim 3, the locking lever for deflecting it provide its locking position with a lever, which against a stop at the beginning of the second switching phase running. This configuration makes it extremely simple and inexpensive manufacture of the time switch ensured.

According to claim 4, the arrangement of the stop and the shape and the arrangement of the deflection lever on the locking lever matched to each other so that the deflection of the Shift lever with increasing switching movement of the spring elements disproportionate with their switching contacts or the shift drum increases. This measure can also be used determine the precise switching point much more precisely. This means that the speed of the deflection movement the locking lever with constant rotation of the shift drum increases steadily towards the end of the second switching phase. Consequently causes a slight rotation of the shift drum at the end the switching phase a large deflection of the locking lever, so that the switching time can be set extremely precisely.

According to claim 5 can be used as a stop for the lever Locking lever the bearing axis of the actual shift lever serve. This will reduce the number of components reached the timer and thus an inexpensive Production.

According to claim 6, a slide switch can be provided which from an initial position to a first switching position can be brought. In this first switch position the shift lever is permanently in its shift position fixed. When moving the slide switch from the starting position in its first switching position Shift lever brought into its shift position at the same time. So that the switching contacts of the two spring elements the time switch according to the invention in the simplest way Permanent contact can be brought. This can be the case with a Timed lighting may be required if longer Time as the actual time switch provides, light is required becomes. Furthermore, such a circuit is also necessary to temporarily function as a To be able to test the consumer without changing the time setting the time switch must be changed.

According to claim 7, the slide switch is in a second Switchable position in which the second spring element of the second switching contact relative to the first spring element of the first switching contact is deflected that the switch contacts even when switched by the shift lever a first spring element of the first switching contact have a predetermined distance from each other. This will allows a second permanent position of the timer. that is, that the switch contacts are constantly open and a connected one Consumers are therefore permanently shut down can be. This may be necessary, for example be when a switching operation or a closing of the switching contacts should be prevented in the long run because of the over the time switch switched end consumer needs to be repaired or replaced or for example is not needed on vacation.

According to claim 8, the translational switching movement of the slide switch for deflecting the second spring element through a lever mechanism on the second spring element transfer. With this lever mechanism, the slide switch can extremely variable, easily accessible from the outside in the housing the time switch can be arranged.

In summary, the configuration according to the invention provided the time switch with a time switch, at which the switching times, i.e. separating and closing of the switching contacts can be set extremely precisely. In addition, the two spring elements of the first switching contact and the second switching contact in two permanent Switch positions can be brought, which two permanent circuits, namely a permanent separation of the switch contacts and a enable permanent closing of the switch contacts.

Fig. 1

einen Aufriß einer erfindungsgemäßen Schaltuhr;

Fig. 2

die Schaltelemente der erfindungsgemäßen Schaltuhr aus Fig. 1 in perspektivischer Explosionsdarstellung;

Fig. 3

die Schaltelemente aus Fig. 2 in teilweise montiertem Zustand in.ihrem Funktionszusammenhang;

Fig. 4

eine perspektivische Darstellung der vollständig montierten Schaltelemente der erfindungsgemäßen Schaltuhr zusammen mit der Schaltwalze;

Fig. 5

die Schaltelemente der erfindungsgemäßen Schaltuhr in Seitenansicht zu Beginn einer-ersten Schaltphase;

Fig. 6

die Schaltelemente aus Fig. 5 am Ende der ersten Schaltphase bzw. zu Beginn der zweiten Schaltphase;

Fig. 7

die Schaltelemente aus den Fig. 5 und 6 am Ende der zweiten Schaltphase;

Fig. 8

die Schaltelemente aus den Fig. 5 bis 6 mit dauernd in Kontakt stehenden Schaltkontakten;

Fig. 9

die Schaltelemente aus Fig. 8 in dauernd getrenntem Zustand ihrer Schaltkontakte.

Fig. 10

eine Seitenansicht einer Ausführungsform von Federelementen mit angeformtem Rasthebel;

Fig. 11

eine perspektivische Darstellung einer Ausführungsform der Lagerung des Rasthebels an einem Federelement;

Fig. 12

eine Seitenansicht von Schaltelementen in ihrer Ausgangsstellung mit drei Federelementen, die als Umschaltkontakt ausgebildet sind;

Fig. 13

die Schaltelemente aus Fig. 12 in ihrer umgeschalteten Endstellung.

The invention is explained in more detail below with the aid of the drawing. It shows:

Fig. 1

an elevation of a timer according to the invention;

Fig. 2

the switching elements of the timer according to the invention from Figure 1 in a perspective exploded view.

Fig. 3

the switching elements of Figure 2 in a partially assembled state in their functional context.

Fig. 4

a perspective view of the fully assembled switching elements of the timer according to the invention together with the shift drum;

Fig. 5

the switching elements of the timer according to the invention in side view at the beginning of a first switching phase;

Fig. 6

5 at the end of the first switching phase or at the beginning of the second switching phase;

Fig. 7

the switching elements of Figures 5 and 6 at the end of the second switching phase.

Fig. 8

the switching elements of Figures 5 to 6 with permanently in contact switching contacts.

Fig. 9

8 in the permanently disconnected state of their switching contacts.

Fig. 10

a side view of an embodiment of spring elements with molded locking lever;

Fig. 11

a perspective view of an embodiment of the storage of the locking lever on a spring element;

Fig. 12

a side view of switching elements in their starting position with three spring elements which are designed as a changeover contact;

Fig. 13

the switching elements of Fig. 12 in their switched end position.

1 shows a timer 1 of the type according to the invention, whose housing 2 is shown open. Such Timer 1 is due to the special shape of the housing 2 for example for use in electrical Control cabinets provided. In the housing 2 is a shift drum 3 rotatably mounted. This shift drum is used over several Gears 4, 5 and 6 and two worm gears 7 and 8 driven, for example, by a synchronous motor 9. Of course, everyone can drive it other suitable motor rotating at constant speed be used. The translation is for example so. chosen that the shift drum 3 in the direction of the arrow 10 in 24 hours or, e.g. in so-called weekly clocks, in performs a full rotation of 360 ° for seven days. The Shift drum 3 has a variety of on its circumference Switching elements 11 and 12, which for actuating a Shift lever 13 are provided. The switching elements 11 and 12 are in the present embodiment in their radial position relative to the shift drum 3 adjustable. So the switching elements 11 are with their outer surface elements 14 radially further outside than the switching elements 12 with its surface elements 15. The switching elements 11 and 12 thus form a stepped peripheral surface in the circumferential direction the shift drum 3. This graded peripheral surface the shift drum 3 is scanned by the shift lever 13.

The shift lever 13 is rotatable on a pivot axis 16 mounted, this pivot axis 16 parallel to the axis of rotation 17 of the shift drum 3 running in the housing 2 of the timer 1 is arranged. The pivot axis 16 of the shift lever 13 is located radially outside of the shift drum 3. As can be seen from Fig. 1, the shift lever 13 designed as a double lever and has a feeler lever section 18 and one with respect to the pivot axis 16 substantially diametrically opposite actuating section 19 on. The feeler lever section is at its free end 18 provided with a touch finger 20, which is transverse runs to the feeler lever section 18 and in FIG. 1 illustrated starting position of the shift lever 13 in the the switching elements 11 and 12 formed circumferential recess 21 engages the shift drum 3. The touch finger lies here 20 on the outer surface of the radially inner switching elements 12 on.

As can also be seen from FIG. 1, there are 2 in the housing the time switch 1 has a first spring element 22 and a second one Spring element 23 arranged, which approximately in the region of the actuating section 19 of the shift lever 13 with a first Switching contact 24 or a second switching contact 25 are provided. These two spring elements 22 and 23 are as can be clearly seen from Fig. 1, like leaf spring educated. The first spring element 22 is with its lower end opposite the switch contact 24 together with a guide plate 26 in a housing receptacle 27 fixed. The baffle 26 is in electrical contact with the spring element 22, which the Switch contact 24 carries. At a lateral distance from the housing holder 27 a second housing receptacle 28 is provided, in which the lower, the second switching contact 25 opposite End of the second spring element 23 together is recorded with a second guide plate 29. The two Baffles 26 and 29 each lead to a connection terminal 30 or 31, to which an electrical consumer can be connected is.

In the starting position of the spring elements shown in FIG. 1 22 and 23 have the two switching contacts 24 and 25 a distance from each other so that they are not electrically to be in contact with each other. For example, on Housing 2 a stop pin 32 is provided, which prevents that the second spring element 23 with its second Switch contact 25 on the first spring element 22 with his can move first switch contact 24. About in the area of the first switching contact 24 is on the back 33 of the first spring element 22 a stop pin 34 is provided, the part of the free end of the operating section 19 of the shift lever 13 is.

In the starting position of the shift lever shown in Fig. 1 13 is the arrangement of the stop pin 34 of the Actuating section 19 selected so that a safety distance guaranteed between the switching contacts 24 and 25 is. As can also be seen from FIG. 1, in this starting position of the shift lever 13, the spring element 22 slightly under tension by the stop pin 34 of the Actuating section 19 in the direction of the second spring element 23 curved. This ensures that first spring element 22 rests on the stop pin 34 without play. At the upper end of the first spring element 22 a detent lever 35 above the first switching contact 24 provided, which at the top of a corresponding Bearing pin 36 in a bearing eye 37 of the spring element 22 is rotatably mounted. In this bearing journal 36 opposite end region, the locking lever 35 has a transverse to the locking lever 35, directed downwards Latch 38 on.

At its free end, the locking lever 35 forms in front of the Latch 38 a bearing surface 39 with which the locking lever 35 in the unloaded state on the upper end edge 40 of the second spring element 23 slidably rests. To secure This starting position of the locking lever 35 can be a spring element be provided, through which the latch lever 35 with its bearing surface 39 against the end edge 40 of the second Spring element 23 is pressed. This spring element for the locking lever 35 is for reasons of clarity not shown in the drawing.

As can also be seen from FIG. 1, the locking lever 35 opposite the locking lug 38, a transverse to the locking lever 35 extending, upwardly directed deflection lever 41 is provided, starting from the locking lever 35 to the Pivot axis 16 of the shift lever 13 also extends. In the starting position shown in Fig. 1 is the deflection lever 41 not in contact with the swivel axis 16. Furthermore is also the distance of the locking lug 38 with its stop surface 42 selected from the journal 36 such that the Stop surface 42 does not touch the second spring element 23. Such dimensions of the locking lever 35 are not mandatory, however, this configuration ensures that the two spring elements 22 and 23 have a defined take a slightly biased starting position like this 1 can be seen.

Through the components described, namely the shift drum 3 with their switching elements 11 and 12, the shift lever 13 and the two spring elements 22 and 23 with their two Switch contacts 24 and-25 and by the locking lever 35 is a sudden relative movement of the two spring elements 22, 23 and thus the two switching contacts 24 and 25 for Closing and opening of the switching contacts 24, 25 ensured as will be explained in more detail below. By this sudden switching movement, which essentially through the shift lever 13 and the locking lever 35 in cooperation is effected with the switching elements 11 and 12 depending on the rotation of the shift drum 3 a time precise and perfect electrical switching of the Switch contacts 24 and 25 ensured.

For a manual switching, for example the switching contacts 24, 25 in contact or out of contact to hold, a slide switch 43 is provided, which on the one hand with a link lever 44 of the shift lever 13 and a lever mechanism consisting of the two bellcranks 45 and 46 interacts.

Fig. 2 shows an enlarged view of the individual components belonging to the switching mechanism in enlarged, perspective exploded view. Here are in Fig. 2 the respective upper ends of the spring elements 22 and 23 shown, in the end area on the one hand the first Switch contact 24 on the first spring element 22 and on the other the second switching contact 25 is arranged on the second spring element 23 are. The distance shown in Fig. 2 Switch contacts 24 and 25 correspond to that in FIG. 1 distance shown in the starting position of the shift lever 13. At the upper end of the first spring element 22 is the bearing eye 37 recognizable, which as an integral part of the first spring element 22 by a round curve Spring section is formed. In the axial direction in front of the bearing eye 37, the first spring element 22 has one Recess 47 on which to hold the locking lever 35 serves. As can also be seen from FIG. 2, the Bearing pin 36 of the locking lever 35 transversely to the locking lever 35 and is suitable, as can be seen in particular from FIG. 3 in the bearing eye 37 of the spring element 22 with little Game insertable. In the area of its opposite the journal 36 The end is the locking lug 38 of the locking lever 35 recognizable, which is directed approximately vertically downwards Latching lever 35 protrudes. This locking lug 38 adjoins As already mentioned for FIG. 1, the bearing surface 39 on which the locking lever 35 in its starting position on the Upper end edge 40 of the second spring element 23 rests (Fig. 3). The deflection lever is approximately above the locking lug 38 41 of the locking lever 35 is provided, which in the present Embodiment approximately at right angles or in one An angle greater than 90 ° to the locking lever 35 is integrally formed thereon is.

Fig. 2 further shows the shift lever 13 in perspective Presentation. The shift lever 13 has a bearing bore 48 provided, via which the shift lever 13 on the Pivot axis 16 is pivotally mounted. The pivot axis 16 is on the rear wall 49 of the housing 2 of the time switch 1 arranged. The pivot axis 16 can be in one piece Part molded directly onto the rear wall 49 or be attached to the rear wall 49 as a separate component. The feeler lever section 18 is at its free end with the Tracer fingers 20 running transversely to the feeler lever section 18 Mistake. The function of this touch finger 20 was already briefly described in relation to FIG. 1. As from Fig. 2 further can be seen, the operating portion 19 of the Shift lever 13 the feeler lever section 18 with respect to the bearing bore 48 diametrically opposite and is in the axial direction the axis of rotation 50 of the shift lever 13 by the width of the Probe lever section 18 arranged offset to this. The Probe lever section 18 and the actuating section 19 are connected in one piece. The offset the feeler lever section 18 and the operating section 19 is chosen so that the locking lever 35 in extension to Probe lever section 18 axially next to the operating section 19 place. This makes an extremely small size this lever arrangement achieves how this in particular Fig. 3 can be seen. Furthermore, the operating section 19 towards its free end with a spring element side Provide recess 51, which in depth to the axial width of the bearing eye 37 of the spring element 22 is coordinated. At the end of the operating section 19th the stop pin 34 is arranged, which component a reinforcing web 52. As in particular from Fig. 3 can be seen, the axial length L-of the stop pin 34 and the reinforcing web 52 are designed in such a way that together with the front side edges 53 and 54 of the two spring elements 22 and 23 in a common Level. This creates in the assembled state of the Shift lever 13, the locking lever 35 with its lever 41 and the arrangement of the two spring elements 22 and 23 a compact switching unit, as shown in particular in Fig. 3 can be seen. This switching unit thus forms the automatic one Part of the lever arrangement of the invention Time switch 1st i.e. that through these components, the shift lever 13, the locking lever 35 with its lever 41 and their Connection and arrangement to the two spring elements 22 and 23 automatic closing and disconnection of the two Switch contacts 24 and 25 depending on the rotational position or of the rotation of the shift drum 3 with their Switching elements 11 and 12 is effected.

For manual switching of switch contacts 24 and 25 or whose spring elements 22 and 23 are, as already shown in FIG. 1 mentioned, the slide switch 43, the link lever 44 of the Shift lever 13 and the two bellcranks 45 and 46 are provided. The switch slide 43 has, as shown in FIG. 2 and 3, as well as from FIG. 1, an upper guide section 55 with which the slide switch 43 between a guide web 56 of the rear wall 49 and an upper top wall 57 of the housing 2 is axially displaceable is led. In the rear end area of the guide web 56 a locking pin 58 is provided which, starting from the The rear wall 49 of the guide web 56 is directed inwards towered over to the slide valve 43. The slide switch 43 is arranged with a below its guide section 55 Provided locking tab 59 which is approximately parallel to Guide section 55 runs. In the area of your free front End (in Fig. 1, the right end) has the locking tab two upward locking bars 60 and 61, with which the slide switch 43 latches in the assembled state can be brought into engagement with the locking pin 58. Through the two locking bars 60 and 61 and the locking pin 58 is in the present embodiment, a middle starting position of the locking slide 43 set as this can be seen in particular from FIGS. 1 and 3.

To operate the slide switch 43, this has on his Guide section 55 an operating lever 62, which in the assembled state through a corresponding through opening 63 (FIGS. 1 and 4) of the top cover wall 57 of the Housing 2 of the timer 1 protrudes accessible from the outside. The through opening 63 is in its dimensions matched so that the slide valve 43 from its in 1 and 3 shown in two themselves Switchable opposite positions can be brought is, as will be explained further below. That is, the passage opening 63 with respect to these two switching positions a stop for the operating lever 62 and thus forms for the entire slide valve 43.

In its starting position in the direction of the arrow 64 shifted switching position becomes the guide section 55 with the front end 65 of the slide switch 43 brought into operative connection so that the shift lever 13 is actuated becomes. For this purpose, the shift lever 13 on its link lever 44 a parallel to the axis of rotation 50 Switch pin 66 through which the link lever 44 and thus the entire shift lever 13 through the front end 65 the slide switch 43 when adjusting in the direction of the arrow Arrow 64 is operated. In this switch position a causes permanent closure of the two switching contacts 24 and 25, as explained in more detail below in relation to FIG. 8 becomes.

the switch slide 43, however, in the opposite Moved in the direction of arrow 64, he kicks with the bellcrank 45 in operative connection. For this purpose, the slide switch 43 in the region of its front end 65 on its underside Guide section 55 on a switching lug 67, which at the Return movement of the slide switch 43 against the arrow 64 with an actuating lever facing the slide switch 43 68 of the upper lever 45 brought into operative connection becomes. The bell crank 45 is on a diameter Larger bearing section 69 of the pivot axis 16 rotatably mounted and accordingly with a bearing hub 70 Through hole 71 provided. On the opposite Side to the control lever 68 is on the bearing hub 70 of the bell crank 45 a second lever arm 72 is provided, which a extending radially from the bearing hub 70 Has slot 73.

As can be seen from Fig. 2, the rear wall of the housing 49 approximately below the pivot axis 16 or the bearing section 69 a further journal 74 on which the second bell crank 46 with its one bearing bore 75 having bearing hub 76 is rotatably mounted. The bell crank 46 is on its bearing hub 76 with one for the first Deflecting lever 45 facing first adjusting lever 77, which one parallel to the axis of rotation 78 of the bell crank 46 extending plug 79, which with the slot 73 of the lever arm 72 of the first bell crank 45 is engaged.

On the side opposite the first control lever 77 is an actuating lever on the bearing hub 76 of the second bell crank 46 80 arranged, which is an integral part of the lever 46 and in the axial direction of the axis of rotation 78 is shifted forward. When assembled, As can be seen from Fig. 3, the operating lever is thus 80 approximately in the same vertical plane as that second lever arm 72 and the adjusting lever 68 of the first lever 45. This configuration also makes one extremely space-saving design achieved.

At the outer end of the operating lever 80, this has one Setting pin 81, which when pivoting the bell crank 46 for adjusting the second spring element 23 with his second switching contact 25 is used.

Fig. 4 shows the complete switching mechanism of the invention Time switch 1 in the assembled state in perspective Presentation. Located in the switching position shown the shift drum 3 with its shifting elements 11 and 12 in a rotational position in which the radially inward switching elements 12 located outside the switching function in the area of the touch finger 20 of the shift lever 13. In this starting position, which is the starting position 1 corresponds to the two switching contacts 24 and 25 a distance from each other so that no electrical There is a connection between these two components. The first spring element 22 lies on the outside on the stop pin 34 of the shift lever 13 or its actuating section 19 on. The one rotatably mounted in the bearing eye 37 of the spring element 22 Latch lever 35 rests with its bearing surface 39 the upper end edge 40 of the second spring element 23. Furthermore, the second spring element 23 lies on the stop pin 34 on, so that the second spring element 23 does not open the first spring element 22 can be moved. Between the two spring elements 22 and 23 is also the Adjusting pin 81 of the lower bell crank 46 can be seen. This Adjustment pin 81 can be in the switching position shown minimal to the inner surface 82 of the second spring element 23 Have distance so that the second spring element 23 securely in a predefined position on the stop pin 32 is present. Furthermore, it can be seen that the latch 38 of the locking lever 35 to the second spring element 23 also has a distance. Thus is shown in FIG Switch position the relative position of the two spring elements 22 and 23 on the one hand by the starting position of the shift lever 13 or its stop pin 34 and by the fixed position defines the stop pin 32. In this position also points the deflection lever 41 to the pivot axis 16 of the shift lever 13 a defined distance on, so that the defined starting position by the locking lever 35 of the two spring elements 22 and 23 is not affected becomes. Furthermore, it can also be seen from FIG. 4 that that the locking lever 35 with its lever 41 about lies in the same vertical plane as the feeler lever section 18 of the shift lever 13. In the axial direction of the axis of rotation 50 of the shift lever 13 behind the feeler lever section 18 and behind the locking lever 35, the operating section 19 of the shift lever 13, during the reinforcing web 52nd together with the stop pin 34, the first spring element 22 engages behind. The arrangement of the two spring elements 22 and 23 and the locking lever 35 and the feeler lever section 18 is chosen so that its front boundary surfaces or boundary edges at least approximately in one common vertical plane.

In this starting position shown is the approximately at right angles to the feeler lever section 18 and the actuating section 19 arranged link lever 44 with his Switching pin 66 in both vertical and horizontal Direction in the immediate vicinity of the front end edge 83 of the upper guide section 55 of the slide switch 43. The slide switch 43 is again with its two Locking bars 60 and 61 form-fitting with the locking pin 58 of the guide web 56 in engagement, so that this neutral Starting position of the slide switch 43 defined defined is. This means that in this neutral switch position the slide switch 43 this automatic Shift during the rotation of the shift drum 3 in the direction the arrow 10 and thus the switching operation of the two Spring elements 22 and 23 interact through the shift lever 13 not affected by the locking lever 35. by virtue of the neutral position of the slide switch 43 are Furthermore, the two bellcranks 45 and 46 in one neutral position, in which they also the automatic Cannot influence the switching process.

From Fig. 4 it can be clearly seen that the switching mechanism of the automatic part, consisting of the gear lever 13 and the locking lever 35, and the manual part, consisting of the slide switch 43 and the two bellcranks 45 and 46, an extremely compact and narrow unit forms, so that the time switch 1 as a whole is extremely has a narrow structure.

5, 6 and 7. the individual switching phases are for automatic switching of the two switching contacts 24 and 25 represented via the spring elements 22 and 23.

At the beginning of this first switching phase is the Shift drum 3 with its actively placed radially outwards Switching elements 11 in an angular position, in which the in the direction of rotation front switching element 11 directly on the back on the positioning surface 84 of the touch finger which forms a kind of ramp 20 is present. In this position, at the beginning of this first one Switching phase, the shift lever 13 is consequently with its feeler lever section 18 and its actuating section 19 still in its starting position, in which the Touch fingers 20 which are in the deactivated switching position Switching elements 12 still touched on the outside. As before 1 and 4 mentioned, is in this starting position of the shift lever 13, the spring element 22 under slight preload on the stop pin 34 of the actuating section 19 of the shift lever 13. Lies at the same time the second spring element 23 on the stop pin 32 under prestress with a safe distance in this position of the two switching contacts 24 and 25 is guaranteed. The Latch lever 35 lies with its bearing surface 39 on the upper one End edge 40 of the second spring element 23 and has to this second spring element 23 with its locking lug 38 a predetermined distance. The same is in this Starting position also between the deflection lever 41 of the locking lever 35 and the pivot axis 16 on which the shift lever 13 is mounted, at least a slight distance intended.

As can also be seen from FIG. 5, the feeler lever section is 18 of the shift lever 13 in the area of the bearing bore 48 recessed towards the deflection lever 41, so that at one Switching the locking lever 35 with its lever 41 is supported directly on the pivot axis 16 and on this slides along. This ensures that the Shift process not due to manufacturing tolerances of the shift lever 13 or its feeler lever section 18 is influenced and extremely precise switching times can be set.

From the rotational position shown in Fig. 5 now rotates in further operation, the shift drum 3 with its switching elements 11 and 12 in the direction of arrow 10 so that the Shift lever 13 along the foremost active switching element 11 with his finger 20 over the footprint 84 thereof is deflected radially outwards and thus the shift lever 13 a rotation about the pivot axis 16 in the direction of Arrow 85 executes. Simultaneously with this rotation of the Shift lever 13 rotates both the feeler lever section 18 as well as the operating section opposite this 19 together with its stop pin 34 also in the same Direction about the pivot axis 16. By this rotation the spring element 22 in the direction of arrow 86 on the second spring element 23 deflected. Since the locking lever 35 in Bearing eye 37 of the first spring element 22 is mounted, moves this with its latch 38 also in the direction of arrow 86 on the upper end of the second spring element 23 to. Also the lever 41 of the locking lever 35 moves in the direction of arrow 86 until it hits his pivot front side footprint 87 den Swivel pin 16 of the shift lever 13 touches. With another Rotation of the shift drum 3 in the direction of arrow 10 is now by further deflection of the shift lever 13 first spring element 22 continues in the direction of arrow 86 deflected and the moving locking lever 35 through his at the pivot axis pivotal lever 41 in Bearing eye 37 of the spring element 22 in the direction of the arrow 88 rotated so that the bearing surface 39 of the locking lever 35 slowly from the upper end edge 40 of the second spring element 23 takes off.

Fig. 6 shows a switch position immediately before the end the first switching phase, in which the locking lever 35 is straight still with its locking lug 38 with the second spring element 23 is engaged. It can be seen from Fig. 6 that by the locking lever 35 and the distance between the locking lug 38 and the bearing eye 37 of the first spring element 22 this first spring element 22 and the second spring element 23 with their upper ends held at a predefined distance become. This distance is so large that it ensures is that by the end of the first switching phase two switch contacts 24 and 25 certainly not in electrical Can come into contact with each other. Accordingly have the two switch contacts 24 and 25 throughout first switching phase at least the over the locking lever 35 predefined and recognizable distance from each other in Fig. 6 on. The rotation of the locking lever 35 in the direction of As already mentioned above, arrow 88 is carried out by the sliding of the deflection lever 41 along the pivot axis 16 of the shift lever 13 while the first spring element 22 via the stop pin 34 of the actuating section 19 of the shift lever 13 further deflected in the direction of arrow 86 becomes. At the same time, until the end of the first Switching phase due to the positive engagement of the latch 38 of the locking lever 35 on the spring element 23 this too Spring element 23 moved in the direction of arrow 86.

At this end of the first movement phase shown in FIG. 6 follows a second movement phase, the 7 is shown at the end. As can be seen from Fig. 7 is, the shift drum 3 moves further in the direction of rotation of arrow 10 until the shift lever 13 or its feeler lever section 18 with his finger 20 on the outside Circumferential surface 89 of the switching elements 11 rests. While of the transition from the position of the Shift lever 13 up to the position shown in FIG. 7, the shift lever 13 continues to rotate in the direction of the arrow 85, whereby over the stop pin 34 of the actuating section 19 the spring element 22 further in the direction of Arrow 86 is moved. Since the locking lever 35 also in this direction of arrow 86 via the bearing eye 37 of the spring element 22 is moved and thus also its lever 41, which continues to rest on the pivot axis 16 and along this upwards in the direction of the arrow 90 slides, the locking lever 35 continues in the direction of rotation of arrow 88 rotated. Immediately after that shown in Fig. 6 Position thus gives the locking lug 38 of the locking lever 35 the prestressed spring element 23 with its Switch contact 25 free, so that this suddenly in Direction of arrow 91 in the closing direction at first Switch contact 24 moves and with this in electrical Is brought into contact. Now the shift drum 3 turns Direction of arrow 10 continues until the finger 20 again in the area of the radially inward switching elements 12 arrives, the touch finger 20 falls past the last edge 105 of the last radially outside Switching element 11 abruptly in its Fig. 5 shown starting position. At the same time the first spring element 22 from which also in the in Fig. 5 shown starting position moving back stop pin 34 released so that the locking lever 35 also falls back into the starting position shown in Fig. 5. The second spring element also moves at the same time 23 back to its initial position of FIG. 5 and is on the stop pin 32, so that the two switching contacts 24 and 25 due to the sudden incidence of the Touch fingers 20 and thus the sudden return movement of the entire shift lever 13 against the direction of arrow 85 again suddenly be separated.

Due to the lever mechanism described on the one hand Shift lever 13 and the other hand, the locking lever 35 with his Deflection lever 41 are the switching times for Closing switch contacts 24 and 25 and for disconnection of the two switching contacts 24 and 25 can be clearly determined.

Furthermore, due to this special construction also two permanent circuits, namely one-permanently closed Switch position or a constantly open switch position of the two spring elements 22, 23 with their switch contacts 24, 25 possible, as exemplified in FIGS. 8 and 9 is shown. Starting from the basic position 5 is now the slide switch 43 by means of his Actuating lever 62 in the direction of arrow 92 in the in-Fig. 8 position shown. As can be seen from Fig. 5 is the switching pin 66 of the articulation lever 44 in the starting position above the lower footprint 93 of the guide section-55 of the slide switch 43 is arranged. By moving the slide switch 43 in the direction of arrow 92, the switching pin 66 is now together with ' his link lever 44 from his shown in Fig. 5 Position brought into the switching position shown in Fig. 8. The entire shift lever 13 rotates together with it the link lever 44 and the actuating section 19 of the Shift lever 13 around the pivot axis 16 in the direction of arrow 85. Further moves at the end of the operating section 19 arranged stop pin 34 with a Horizontal component in the direction of arrow 86, so that first spring element 22 also in this direction of the arrow 86 is pressed. During this movement the Locking lever 35 the same rotary movement in the direction of the arrow 88 around the bearing eye 37, as already shown in FIG. 5, 6 and 7 has been explained. This means that in its end position, as shown in Fig. 8, the locking lever 35 securely the upper end of the second spring element 23 has released so that this due to its elastic Bias with its second switch contact 25 electrically contacting the first switch contact 24 of the first . 'Spring element 22 arrives. Thus, the two switch contacts 24 and 25 closed. As can also be seen from FIG. 8 is in this fixed end position of the shift lever 13 fixed a pivot position, which at least the corresponds to the final pivot position of the shift lever 13 from FIG. 7, to be on the safe side, however, by a few degrees continues in the direction of arrow 85.

In the position shown in Fig. 8 is the slide switch 43 with its actuating lever 62 up to the stop 94 of the through opening 63 of the upper cover wall 57 postponed. In this position the slide switch 43 through the locking bar 60 on the locking pin 58 of the guide bar 56 secured. In this switching position shown in Fig. 8 of the shift lever 13 together with the spring elements 22 and 23 and the associated switch contacts in contact 24 and 25 will be a permanent contact between them two switch contacts 24 and 25 regardless of the Angle position of the shift drum shown in phantom lines 3 reached. Through this embodiment of the invention The two switch contacts 24 and 25 are in one time switch Switch position permanently switched on can be brought.

In order for the two to be in a permanently switched off position Ensure switching contacts 24 and 25 are the two Deflection levers 45 and 46 are provided, as can be seen in FIG. 9 is. Again starting from the initial position of the Fig. 5 is now the slide switch 43 in the direction of the arrow 95 moved so that it with its locking web 61 on Locking pin 58 engages and on the second stop 96 Through opening 63 of the upper cover wall 57 abuts. In this position is the slide switch 43 through the locking web 61 secured to the locking pin 58, as shown in FIG. 9 evident. As already described for FIGS. 2 and 3, is on the lower footprint 93 of the guide section 55 of the slide switch 43, the switching lug 67 is provided. When adjusting the slide switch 43 in the direction of Arrow 95 acts on this switching lug 67 with the actuating lever 68 of the bell crank 45 and rotates it around the bearing section 69 of the pivot pin 16 in the direction of rotation Arrow 97. By this adjusting movement of the bell crank 45 the second lever 46 is simultaneously in the opposite Direction of rotation 98 due to its journal 74 due its mechanical coupling via its plug 79 with the slot 73 pivoted. By pivoting in The direction of rotation of arrow 98 leads to the adjusting pin 81 at the bottom End of the operating lever 80 of the bell crank 46 a Adjustment movement with a horizontal component in the direction of arrow 99, so that the second spring element 23rd is also deflected in this direction. Through this However, the first spring element 22 becomes the actuating movement not affected, so the distance between the two Switch contacts 24 and 25 'in this second switch position the slide switch 43 and the bellcranks 45th and 46th significantly enlarged. The actuating movement in the direction of the Arrow 99 is due to the gear ratios between the slide switch '43 and the two bellcranks 45 and 46 selected so that the first switching contact 24 also at an active switching of the first spring element 22, as in 7, do not touch the switch contact 25 can.

Due to the configuration of the invention according to FIG. 8 and 9 are two with the switching mechanism according to the invention Extreme positions or switching positions permanently adjustable. On the one hand, therefore, according to the explanations Fig. 8 is a permanent circuit with closed switch contacts 24 and 25 can be achieved. The same applies in relation on Fig. 9, namely that in a second switching position of the Switch slide 43 the contacts 24 and 25 safely permanently are out of contact.

Fig. 10 shows an embodiment with a locking lever 35/1, which is an integral part of the first spring element Is 22/1. The first is in the upper end area Spring element 22/1 the first switching contact 24/1 is provided, which in the illustrated starting position of the spring element 22/1 and the spring element 23/1 in a predetermined Distance to that arranged on the second spring element 23/1 second switching contact 25/1 is arranged. The locking lever 35/1 is above the first switch contact 24/1 an approximately annular spring section 100 integrally formed on the first spring element 22/1. In the Starting position shown extends the locking lever 35/1 in substantially perpendicular to the first spring element 22/1 and has an approximately perpendicular downward to the second spring element 23/1 bent nose 38/1. At the top The end of the second spring element 23/1 is an electric one insulating stop element 101 is provided, which for example is made of plastic and at the top of the second spring element 23/1, for example, be injection molded can. The horizontal distance of the latch 38/1 to this Stop element 101 is chosen to be smaller than the distance of the two switching contacts 24/1 and 25/1, so that at a deflection of the first spring element 22/1 in the direction arrow 102 the two switch contacts 24/1 and 25/1 safely at an electrically non-conductive distance from each other be held when the detent-38/1 with the stop element 101 is engaged. The other function corresponds that previously described in relation to FIGS. 5 to 9 Embodiment of the locking lever 35, the actuation of the first spring element 22/1 also by the shift lever 13 or its stop pin 34 at the end of its actuating section 19 takes place. To deflect the locking lever 35/1 this also has a lever 41/1 on, which is integrally formed on the locking lever 35/1. In the embodiment of FIG. 10, the locking lever 35/1 after covering a certain distance in Direction of arrow 102 upward in the direction of the arrow 103 deflected so that during a second switching phase the second spring element 23/1 also suddenly released becomes. To ensure that the locking lever 35/1 with its locking lug 38/1 against the return movement The direction of the arrow of the arrow 102 engages on the stop element 101, has the stop element 101 on its back an inclined deflection surface 104 so that the Locking lever 35/1 securely in the starting position shown in Fig. 10 can go back. To fix the starting position of the second spring element 23/1 is also the Stop pin 32 is provided, the stationary in, in Fig. 10th not shown housing of the timer is arranged.

Another embodiment of a storage of the locking lever Fig. 11 shows 35/2 on the first spring element 22/2 can the locking lever 35/2 for example made of a metallic Material or formed from a plastic be, in the former case according to the embodiment 10 on the second spring element (not in the drawing also shown) an electrically insulating stop element is to be provided. For pivoting storage of the Locking lever 35/2 on the first spring element 22/2 has this first spring element 22/2 in its upper end region in the area its two side edges 106 and 107 have two bearing slots 108 and 109, through the two on the locking lever 35/2 bearing tabs 110 arranged at a suitable distance or 111 are inserted. The two bearing plates 110 and 111 are on the rear side in the present embodiment bent vertically upwards so that the Locking lever 35/2 with its between the two mounting brackets. 110 and 111 extending bearing edge 112 at the front of the spring element 22/2 and this bearing edge 112th is deflectable upwards. The further design the locking lever 35/2 can be identical to the design of the locking lever 35/1 from FIG. 10.

Furthermore, there are also other configurations of the storage a locking lever on the first spring element conceivable. Important the only thing is that this locking lever, like this exemplified in Fig. 10 by the vertically upward Arrow 103 is shown, deflectable in this direction is. To reset the respective locking lever can spring elements not shown in the drawing be provided which either on the locking lever, the spring element or arranged in the housing of the timer can be and counter the respective locking lever of arrow 103 apply a corresponding spring force. The locking lever itself or its connection to the first spring element, like this in particular illustrated by the embodiment of FIG. 10 is designed to be resilient. Furthermore is also provided the locking lever in corresponding guides in. Housing slidable in the direction of arrow 102 of FIG. 10 to store and the deflection by appropriate design from guide slots in the housing to one-sided or arranged on both sides of the locking lever and into these guide slots engaging guide pin like a To effect the backdrop. It goes on to understand how the embodiment of Fig. 10 shows that in each Case between the first spring element and the second Spring element no electrically conductive connection over the Locking lever may exist. On the one hand, this can be done by appropriate Choice of the material of the locking lever itself achieved or on the other hand through additional insulation measures on the locking lever or the spring elements.

12 and 13 show an embodiment of a Switch contact arrangement, which is called a switch contact is trained.

In this circuit arrangement there is a first spring element 22/3 and a second spring element 23/3 are provided, which the spring elements 22 and 23 from the embodiment 5 to 9 correspond. Accordingly, on the respective upper end of the respective spring element 22/3 or 23/3 a first switching contact 24/3 or a second Switch contact 25/3 arranged, which in the in Fig. 12th shown starting position a predetermined distance from each other exhibit. To make this predetermined Distance is the first spring element 22/3 accordingly 5 in the embodiment shown in FIG Initial position on stop pin 34/3 under pre-tension which, in turn, at the outer end of the operating section 19/3 of the shift lever 13/3 is arranged. The Shift lever 13/3 is in turn pivotable about the pivot axis 16 stored. Furthermore, the second spring element 23/3 by the stop pin 32 in its shown in Fig. 12 Starting position held so that ensured is that the two switching contacts 24/3 and 25/3 have a predetermined distance not in electrical connection from each other. In addition to these two Spring elements 22/3 and 23/3 is a third spring element 113 is provided with a third switching contact 114, which with a fourth switching contact 115 of the second spring element 23/3 is in permanent electrical contact. This fourth switch contact.-115 is opposite the second Switch contact 25/3 arranged on the second spring element 23/3. It is easy to imagine that for the spring element 113 another baffle in the manner of the two baffles 26 and 29 from Fig. 1 is provided, which in turn is in turn connected to a third connection terminal (in the drawing not shown). The third spring element 113 is biased so that its switch contact 114 also is present at the fourth switching contact 115 under bias and accordingly not in the illustrated Starting position of Fig. 12 unintentionally from the fourth Switch contact 115 can lift off. To switch the from the three spring elements 22/3, 23/3 and 113 with their four Switch contacts 24/3, 25/3 and 114 and 115 formed "Changeover contact" is a locking lever 35/3 provided has a locking lug 38/3, which in its design and function of the locking lug 38 of the shift lever 35 from the 5 to 7 corresponds. In the direction of arrow 102 facing forward, this latch 38/3 also a support surface that is set off at the top 39/3 on.

At a distance from the latch 38/3 is also a vertical downward shift finger 116 provided, which in the present embodiment in its vertical downward extension significantly longer is when the catch 38/3. About above this Shift finger 116 is again a lever 41/3, whose mode of operation is also the deflection lever 41 corresponds to the embodiment of FIGS. 5 to 7.

Accordingly, the shift lever 13/3 also performs one Swivel movement in the direction of the swivel arrow 85, provided that the shift drum 3 shown in phantom lines with their switching elements 11 and 12 a rotation from the in Fig. 12 shown starting position in the direction of the arrow 10 executes. This is about the stop pin 34/3 Spring element 22/3 approximately in the direction of the horizontal arrow 102 deflected until the catch 38/3 with the second Spring element 23/3 is engaged. In this position the shift finger 116 points to the third spring element 113 a certain distance in the horizontal direction, so that the two switching contacts 114 and 115 continue in keep in touch. Furthermore, the is again Locking nose 38/3 arranged on the locking lever 35/3 that during this first switching phase, the two switching contacts 24/3 and 25/3 a predetermined distance apart being held. At the end of this first switching phase comes the locking lever 35/3 with its lever 41/3 with the Swivel axis 16 of the shift lever 13/3 in contact and begins at the beginning of a subsequent second Switching phase in the direction of the Schwehkpfeiles 88 around it Pivot the bearing axis. Also remains in this state between the shift finger 116 and the third spring element 113 still a safety distance, so that the two switching contacts 114 and 115 still in electrical Stay in touch with each other.

With a further pivoting of the shift lever 13/3 in the end position shown in Fig. 13 in the direction of Swing arrow 85 now snaps the second spring element 23/3 with the two switching contacts 25/3 and 115 on the Latch 38/3 abruptly out, because during this adjustment movement the shift lever 13/3 also the locking lever 35/3 further twisted in the direction of the pivot arrow 88 and thus a corresponding vertical movement of both the catch 38/3 and the shift finger 116 approximately in the direction of the vertical arrow 103 is effected. As can be seen from Fig. 13 is, the third spring element 113 after disengaging the second spring element 23/3 on the locking lug 38/3 at the bottom End of the shift finger 116 and from this in the Fig. 13 shown holding position held. Since that Spring element 23/3 suddenly detaches from latch 38/3, the contact between the two becomes abrupt Switch contacts 114 and 115 open while immediate subsequently at a later point in time the two switching contacts 25/3 and 24/3 suddenly getting closed.

Thus, with the switching arrangement according to the embodiment 12 and 13 a switch from one first consumer suddenly to a second consumer possible, for example, the first consumer in electrical contact with a corresponding terminal stands, which the first spring element 22/3 with its Switch contact 24/3 is assigned while a second consumer the third spring element 113 with its switching contact 114 is assigned. The return movement of the spring elements 22/3, 23/3 and 113 from their shown in Fig. 13 End position in its starting position shown in Fig. 12 is also done abruptly, as already 5 to 7 described, the shift lever 13/3 counter the arrow direction 85 suddenly in turn Starting position of Fig. 12 falls back as soon as it is in the Effective range of the inactive switching elements 12 reaches.

In summary it can be stated that with the invention Time switch on the one hand a precise, automatic Switching contacts 24 and 25 can be set optionally is. The switching contacts 24, 25 are closed suddenly because of the notching of the Locking lever 35 on the second spring element 23. The sudden Opening of the switch contacts 24, 25 is caused by the sudden "Fall" of the shift lever 13 with its shift lug 20 in the switching elements 12 given by the inactive Free space of shift drum 3 reached. Similarly also applies to the exemplary embodiments according to FIGS. 10 to 13, with respect to the embodiment of 12 and 13 a sudden switchover of the energy supply from a first consumer to a second Consumer and vice versa.

On the other hand, can be connected to the timer 1 according to the invention Consumers in addition to this precise, automatic Timer also switched on permanently and be switched off permanently. To set these two Permanent circuits can be a simple, easy from the outside accessible slide valve 43 can be used. It understands yourself that instead of this slide switch 43 also externally accessible toggle switch can be used, in a corresponding manner with the two deflection levers 45 and 46 is coupled. Such an arrangement can be made accordingly also for the embodiment of FIGS. 12 and 13 be provided, as this by the representation of the slide switch 43 is indicated. This allows the 12 and 13 above-mentioned consumers optionally if required constantly supplied with energy and also permanently switched off become.

Claims (8)

1. Time switch (1) comprising at least one first and one second resilient spring element (22, 22/1, 22/2, 22/3, 23, 23/1, 23/3) which are each provided with at least one switching contact (24, 24/1, 24/3, 25, 25/1, 25/3) and comprising a rotationally driven drum controller (3) having a plurality of switching elements (11, 12) which can each be selectively moved into an active or inactive switch position with respect to a rotatably mounted switch lever (13, 13/3), by which elements the switch lever (13, 13/3) is rotationally deflected out of its inactive starting position into a switch position, and brings the first spring element (22, 22/1, 22/2, 22/3) with its switching contact (24, 24/1, 24/3) into contact with the switching contact (25, 25/1, 25/3) of the second spring element (23, 23/1, 23/3) to perform a switching operation, and on further rotation of the drum controller (3) the switch lever (13, 13/3) falls abruptly back into its starting position for abrupt separation of the switching contacts (24, 24/1, 24/3, 25, 25/1, 25/3, 114, 115), characterised in that a latching lever (35, 35/1, 35/2, 35/3) is provided which, during the closing operation, is moved by the first spring element (22, 22/1, 22/2, 22/3), actuated by the switch lever (13, 13/3), in the direction of the second spring element (23, 23/1, 23/3), and in that the latching lever (35, 35/1, 35/2, 35/3) is interlockingly engaged with the second spring element (23, 23/1, 23/3) during a first switching phase of the closing operation in a locking position by a latching nose (38, 38/1, 38/3) and holds the two spring elements (22, 22/1, 22/2, 22/3, 23, 23/1, 23/3) with their switching contacts (24, 24/1, 24/3, 25, 25/1, 25/3) at a predetermined distance from one another with biasing, and in that the latching lever (35, 35/1, 35/2, 35/3) is deflected from its locking position, during a second switching phase following the first switching phase, by a deflecting element (16) interacting with the latching lever (35, 35/1, 35/2, 35/3) at least during the second switching phase, and abruptly releases the second spring element (23, 23/1, 23/3) of the second switch contact (25/1, 25/3) for abrupt closing of the switching contacts (24, 24/1, 24/3, 25, 25/1, 25/3).
2. Time switch according to claim 1, characterised in that a third spring element (113) with a third switching contact (114) is associated with the first and second spring element (22/3, 23/3) and which with its switching contact (114) is in permanent electrical contact with a fourth switching contact (115) arranged on the second spring element (23/3) until the second spring element (23/3) is abruptly released by the latching lever (35/3) during the second switching phase, and in that the latching lever (35/3) is provided with a switching finger (116) via which the third spring element (113) is held, after the abrupt release of the second spring element (23/3) with its third switching contact (114), at a certain spacing from the fourth switching contact (115) of the second spring element (23/3).
3. Time switch according to claim 1 or 2, characterised in that the latching lever (35, 35/1, 35/2, 35/3) is provided for deflection from its locking position with a deflecting lever (41, 41/1, 41/3) which at the start of the second switching phase runs toward a stop (16).
4. Time switch according to claim 3, characterised in that the arrangement of the stop (16) and the form and arrangement of the deflecting lever (41, 41/1, 41/3) on the latching lever (35, 35/1, 35/2, 35/3) are coordinated with one another such that the deflection of the latching lever (35, 35/1, 35/2, 35/3) increases superproportionally with increasing switching movement of the spring elements (22, 22/1, 22/2, 22/3, 23, 23/1, 23/3, 113) with their switch contacts (24, 24/1, 24/3, 25, 25/1, 25/3, 114, 115).
5. Time switch according to claim 3 or 4, characterised in that the stop for the deflecting lever (41, 41/1, 41/3) is formed by the bearing shaft (16) of the switch lever (13, 13/3).
6. Time switch according to any of claims 1 to 5, characterised in that a sliding switch (43) is provided which can be brought from its starting position into a first switch position in which the switch lever (13, 13/3) is permanently held in its switch position.
7. Time switch according to claim 6, characterised in that the sliding switch (43) can be brought into a second switch position in which the second spring element (23, 23/3) with its second switching contact (25, 25/3) is deflected relative to the first spring element (22, 22/3) of the first switch contact (24, 24/3) in such a way that the switching contacts (24, 24/3) have a certain spacing from one another even when the first spring element (22, 22/3) is switched by the switch lever (13, 13/3).
8. Time switch according to claim 7, characterised in that the transmission of the translatory switching movement of the sliding switch (43) to deflect the second spring element (23) is transmitted to the second spring element (23) by a lever linkage (45, 46).

Images