DE207889C

DE207889C -

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Publication number: DE207889C
Application number: DENDAT207889D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- Jig 207889 KLASSE 2Qi. GRUPPE- Jig 207889 CLASS 2Qi. GROUP

RUDOLF ZWACK in NASSENHAUSEN, LORENZ KOTTMAIR in MÜNCHEN,RUDOLF ZWACK in NASSENHAUSEN, LORENZ KOTTMAIR in MUNICH,

MAX FELS in AUGSBURG und B. BOMBORN in BERLIN.MAX FELS in AUGSBURG and B. BOMBORN in BERLIN.

Es sind Sicherheitsschaltungen für elektrische Stellwerke bekannt geworden, bei denen sich die Schaltung des -Antriebmotors und eine Überwachungsvorrichtung gegenseitig gegen unzulässige Strombeeinflussungen sichern. Die Anordnung ist dann derart, daß der Antriebmotor am Schlüsse der Bewegung kurzgeschlossen wird, oder daß die Sicherung durch ' Erdung der Überwachungsvorrichtung herbeigeführt wird. Im allgemeinen wird durch diese Mittel entweder die Umstellvorrichtung oder die Überwachungsvorrichtung gesichert, es erfolgt jedoch nicht eine gleichzeitige Sicherung beider Vorrichtungen.There are safety circuits for electrical interlockings become known in which the switching of the drive motor and a monitoring device against each other against impermissible Secure current influences. The arrangement is then such that the drive motor is short-circuited at the end of the movement, or that the fuse is through ' Grounding of the monitoring device is brought about. In general, through these means secured either the changeover device or the monitoring device, however, both devices are not backed up at the same time.

Dies herbeizuführen, ist der Zweck der Erfindung, deren Wesen darin besteht, daß jedesmal beim Umstellen der Weiche in die Endlage, und zwar am Ende dieses Vorganges, zunächst die eine Stelleitung durch die Überwachungsvorrichtung vom Motor abgeschaltet und alsdann sämtliche Leitungen an den an-. deren Pol der Batterie gelegt werden. Ferner wird bei entsprechendem Ausbau der Anordnung der Vorteil erreicht, daß man mit drei Leitungskreisen auskommen kann, während man bisher stets mindestens vier Leitungen verwenden mußte, wenn man solche Sicherungen herbeiführen wollte. _t
Fig. ι der Zeichnung stellt eine Ausführungsform der Erfindung dar, und zwar ist mit A das Stellwerk bezeichnet, mit B eine Sicherheitsschaltvorrichtung, die gleichzeitig Überwachungsvorrichtung sein kann. Die Vorrichtungen sind hier als Solenoidapparate mit Spulen m, ml gedacht; es können aber ebensogut Motorapparate Verwendung finden. Die Schalthebel a, x, y sind voneinander isoliert, werden aber stets gleichzeitig umgelegt. Sie können hintereinander auf einer Achse liegen; die Zeichnung gibt schematisch die Lage übereinander an. Die Fig. 1 zeigt die Stellung von B während des Stellvorganges in A. Diese Stellung von B ist also nur und stets dann vorhanden, wenn A in Bewegung ist. Befindet sich A in einer seiner beiden End-Stellungen, ist er also in Ruhe, so befindet sich B stets in der Lage der Fig. 2, gleichgültig, in welcher der beiden Endstellungen A ist. Die Verbindung mit den schematisch angedeuteten Umschalthebeln soll durch" beliebige Übertragungsmittel so getroffen sein, daß bei stromdurchflossenen Spulen m die Apparate in die Lage der Fig. 2 umgelegt werden, während bei Stromlauf durch die Spulen ml wieder die Lage der Fig. 1 hergestellt wird. Die Leitung 2 der Sicherungsvorrichtung kann beispielsweise zu einem Schienenkontakt führen, durch dessen Schluß die Rückstellung bewirkt wird. Wird der Schalter 1 von rechts nach links oder von links nach rechts bewegt, so vollführt der Apparat B stets zwei Schnappbewegungen: von der Ruhestellung der Fig. 2 in die Ar- ■ beitstellung der Fig. 1 und alsdann, wenn A To bring about this is the purpose of the invention, the essence of which is that each time the switch is switched to the end position, namely at the end of this process, first one control line is switched off by the monitoring device from the motor and then all lines to the other. whose pole is placed on the battery. Furthermore, with a corresponding expansion of the arrangement, the advantage is achieved that you can get by with three line circuits, while previously you always had to use at least four lines if you wanted to bring about such fuses. _t
Fig. Ι of the drawing shows an embodiment of the invention, namely with A denotes the interlocking, with B a safety switching device, which can be a monitoring device at the same time. The devices are intended here as solenoid devices with coils m, ml; however, motorized apparatus can just as easily be used. The shift levers a, x, y are isolated from each other, but are always thrown at the same time. They can lie one behind the other on one axis; the drawing shows schematically the position one above the other. Fig. 1 shows the position of B during the adjusting process in A. This position of B is only and always present when A is in motion. If A is in one of its two end positions, i.e. if it is at rest, B is always in the position of FIG. 2, regardless of which of the two end positions A is in. The connection with the schematically indicated switching levers should be made by "any transmission means" so that when current flows through the coils m, the apparatuses are switched to the position of FIG. 2, while the position of FIG. 1 is restored when current flows through the coils ml. The line 2 of the safety device can, for example, lead to a rail contact, through the closure of which the resetting is effected. If the switch 1 is moved from right to left or from left to right, apparatus B always performs two snap movements: 2 into the working position of FIG. 1 and then when A

Claims

has completed its adjustment movement, back to the rest position according to FIG. 2.

Assuming that the switch lever 1 is placed in the left position of FIG. 1, a current is generated from the positive pole of the battery via switch 1, switch α of apparatus A, coil m, via line 3, switch b of apparatus B, via Line 4 to the negative pole. The actuating device A is now switched to the position of FIG. 2, and a current is generated from the switch α of the device A , which is permanently connected to the positive pole, via line 5, switch a of the apparatus B, coil m, via line 4 to the negative pole. As a result, the apparatus B is also placed in the position of FIG.

In this position of FIG. 2, all contacts and lines are on the positive Pole of the power source. The negative battery

ao pol is permanently on earth. As a result, in this situation, the interlocking A can never be repositioned in this position due to stray currents.

In Fig. 3 an improved embodiment of the circuit is shown, by means of which further fuses are achieved. The essential difference from the first embodiment is that when apparatus B, the lever no longer α with the spool m (here it is only a switching coil m any) can be brought into conductive connection. The currents run in the same way as was described in the previous case. If the switch lever is brought out of its position to switch the switch, the magnet m of the apparatus B is de-energized and the switch levers a, x, y fall back into the position shown in FIG these shift levers can be achieved. The device B can be designed in such a way that it simultaneously locks the switch lever mechanically when changing over when the feedback device is faulty, which is indicated at 8 in the drawing. The current return conductor 5 is expediently passed over the points of the switch, whereby a possible cutting of the switches is indicated.

The embodiment of FIG. 4 shows a switching device with a motor for forward and reverse rotation. With 9 and 10 two coils are referred to in the drawing, the z. B. attract an armature and with it the contact bar of a switching device 11 consisting of two rows of contacts, either when 9 is excited, pull into the left position and close the left row of contacts in a corresponding manner (as indicated in Fig. 4) or when the Pull coil 10 to the right j and close the right row of contacts. The right and left corresponding contacts have the same designation. 40 is the monitoring device, which can be designed in a known manner. C is the servomotor with the switching devices D and E, whose contacts α, χ and b, χ are again isolated from each other and fold over at the same time. 12, 13, 14 are the three main lines. '

The mode of operation will become clear from the circuits for the position shown:

If the switching lever is placed on contact 1, current flows from the positive pole of the battery and the line 12 through the coil 9 to the negative pole. The coil 9 flips the switch and closes the left row of contacts of 11, as shown. The current now flows via the bridged contact 15 through line 16 to the contact lever α of D, lines 17, 18, from apparatus C via line 20 to the left contact 19 via line 21 to the motor brush, the motor armature, the second brush, via line 22, left contact 23, line 24, via 25, line 26, left contact 27, line 28, the isolated contact χ of switch D, line 14 to the negative pole.

The engine adjusts itself here. Up to this point, the negative pole is in the line connected to contact 1 ', which goes from insulating contact χ at D via contact points 27', 29 '. If the motor is switched, the current runs from the positive pole via contact 30 of switch D, left contact 29, contact 31 of the switching lever to the monitoring device 40.

When the motor is moved to the opposite side, the current passes through the coil 10, as a result of which the switch closes the right-hand row of contacts of the switching device 11. In the main, the current flow of the motor current changes, namely the current flows from 18 of the apparatus C via the right contact 19 of the switch 11 to the left motor brush, through the armature to the right motor brush, via the right contact 23 to 25 of apparatus C. etc. in the same way as before over all contacts, but not over those on the left, but over those on the right.

Godfather nt-A ν Proverbs:

i. Safety circuit for electrical interlockings, in which the circuit of the Drive motor and a monitoring device mutually when changing over against impermissible current influences secure, characterized in that each time when changing the switch in the

End position, at the end of this process, first the one (minus) control line switched off by the monitoring device from the motor and then all lines to the other (positive) Pole of the battery are placed.

2. Safety circuit according to claim i, wherein the current when the control lever is thrown first switches a switch independent of the motor, characterized in that this switch closes a series of contacts via which the lines of the switch (D) moved by the drive device (C) and the changeover lines of the drive device are guided one after the other in such a way that no more than three main lines are required for monitoring all contacts.

1 sheet of drawings.