DE559158C

DE559158C - Electrical safety system with pendulum contact bodies suspended on strings that can be moved like a curtain

Info

Publication number: DE559158C
Application number: DEE39491D
Authority: DE
Original assignee: EDUARD BLESSING; ELEKTROZEIT AKT GES
Current assignee: EDUARD BLESSING; ELEKTROZEIT AKT GES
Priority date: 1929-07-02
Filing date: 1929-07-02
Publication date: 1932-09-16

Description

Die Erfindung bezieht sich auf eine elektrische Sicherheitsanlage mit im Gefahrfalle zwecks Schließung eines Alarmstromkreises bewegten Pendelkontakten. Derartige Sicherungen sind in Form von einzeln aufgehängten Kontakten oder in Form von mehreren nebeneinander aufgehängten Kontakten, die zusammen zu einem Vorhang vereinigt sind, bekannt. Bei diesen Anordnungen wird meistens der die Schließung des Alarmstromkreises bewirkende Pendelkontakt an seinen Zuleitungen selbst aufgehängt. Werden mehrere solcher Pendelkontakte zu einem Vorhang vereinigt, dann besteht die Gefahr, daß durch Abschneiden der Zuleitungen einzelne dieser Pendelkontakte aus dem Vorhang entfernt werden und dadurch die Zugangsmöglichkeit zu dem zu sichernden Gegenstand geschaffen wird.The invention relates to an electrical safety system with in case of danger pendulum contacts moved for the purpose of closing an alarm circuit. Such backups are in the form of individually suspended contacts or in the form of several contacts suspended next to one another, the are united together in a curtain, known. In these arrangements, the closing of the alarm circuit is usually the case effecting pendulum contact suspended from its leads itself. Will be several Such pendulum contacts combined to form a curtain, then there is the risk that individual leads by cutting off the leads these pendulum contacts are removed from the curtain and thereby the possibility of access to the object to be secured is created.

Bei manchen Sicherheitsanlagen werden auch bereits die beide Kontaktteile einschließenden Pendelkontaktkörper von einzelnen Fäden getragen, welche unmittelbar an einer Aufhängestange seitlich verschiebbar angeordnet sind und von denen die elektrischen Zuleitungen für die Pendelkontaktkörper unabhängig sind. Demgegenüber sind gemäß der Erfindung die mittels der vorhangartig verschiebbaren Fäden von der gegebenenfalls mit Vorsprüngen oder Vertiefungen versehenen Aufhängestange getragenen Pendelkontaktkörper durch die elektrischen Zuleitungen an ihrem oberen und unteren Ende miteinander gekuppelt. Dadurch wird einerseits im Gefahrfalle die Bewegung eines Pendelkontaktkörpers auch auf die benachbarten Pendelkontaktkörper sicher übertragen, zugleich aber auch ein Verschlingen der einzelnen Pendel verhindert. Zur Beseitigung des Verschlingens der Pendelkontakte dient ferner eine besondere Ausgestaltung des Pendelkontaktes selbst, die gemäß der Erfindung in einer Tieferverlegung des Schwerpunktes der Pendelkontakte besteht. Zu diesem Zweck sind die Pendelkontaktkörper über den Angriffspunkt der gleichzeitig die eine Zuleitung bildenden unteren Kopplung durch Stangen o. dgl. verlängert.In some security systems, the two contact parts are already included Pendulum contact body carried by individual threads, which are arranged to be laterally displaceable directly on a suspension rod are and of which the electrical leads for the pendulum contact body are independent are. In contrast, according to the invention, the threads, which can be displaced in the manner of a curtain, are optionally provided by the with protrusions or depressions provided suspension rod supported pendulum contact body coupled to one another by the electrical leads at their upper and lower ends. This will on the one hand in the event of danger, the movement of a pendulum contact body to the neighboring ones as well Transferring pendulum contact bodies securely, but at the same time also engulfing the individual Pendulum prevented. It is also used to eliminate the entanglement of the pendulum contacts a special embodiment of the pendulum contact itself, which according to the invention in a Lowering the center of gravity of the pendulum contacts exists. To this end are the pendulum contact body over the point of application of the one lead at the same time Lower coupling by rods or the like. Extended.

Die Erfindung ist in der Zeichnung in einigen Ausführungsbeispielen dargestellt, an Hand deren Beschreibung weitere erfinderische Maßnahmen erläutert werden. In der Zeichnung zeigenThe invention is shown in the drawing in some exemplary embodiments Hand whose description further inventive measures are explained. In the drawing demonstrate

Abb. ι eine Anordnung des Sicherheitsvorhangs vor einem Fenster, Fig. Ι an arrangement of the safety curtain in front of a window,

Abb. 2 eine Ausführungsform eines Pendelkontaktes, Fig. 2 an embodiment of a pendulum contact,

Abb. 3 eine andere Ausführungsform eines Pendelkontaktes,Fig. 3 another embodiment of a pendulum contact,

Abb. 4 und 5 zwei Betriebszustände dieser beiden Pendelkontakte.Fig. 4 and 5 two operating states of these two pendulum contacts.

In Abb. ι sind an einer Stange 11 in RingenIn Fig. Ι are on a rod 11 in rings

12 mittels der Fäden 13 die Pendelkontakte 14 aufgehängt. Die Ringe 12 mit den Fäden12 by means of the threads 13 the pendulum contacts 14 hung. The rings 12 with the threads

13 sind durch eine Zugschnur 15, die in bekannter Weise, wie bei Vorhängen üblich, geführt ist, seitlich verschiebbar. Um ein unbefugtes seitliches Verschieben zu erschweren, besitzt die Stangen Vorsprünge 16, die bei einer Seitwärtsverschiebung eine Vertikalbewegung der einzelnen Pendelkontakte 14 verursachen. Hierdurch werden einzelne Pen-13 are by a pull cord 15 known in Way, as usual with curtains, is guided, laterally displaceable. To an unauthorized To make it difficult to move sideways, the rods have projections 16, which at a sideways displacement, a vertical movement of the individual pendulum contacts 14 cause. This means that individual pen

Claims

Delkontakte shaken, and their movement is by means of the couplings 17 and 18 on transmit the neighboring contacts so that the security system responds. The threads 13 are only used for suspension the pendulum contacts 14. The threads are expediently made of easily inflammable material produced, so that reaching through between the threads by means of a cutting torch is easily prevented. The pendulum contacts 14 are interconnected by the lines 17 and 18, which at the same time form the power supply lines to the contacts. Through this connection the individual pendulums consisting of the threads 13 and contact 14 are coupled to one another, so that the movement of one pendulum is transmitted to the neighboring ones. This connection prevents the single pendulum when the curtain moves sideways when it is switched off. The feed lines 17 and 18 are expedient not as flexible as the suspensions 13, so that they can cause a pounding of one penas dels to prevent another. To such a devouring, which for the regular Commissioning and decommissioning of the system is important to avoid completely, the contacts are still provided with an extension 19.

The pendulum contact shown in Fig. 2 consists of a jacket 20, which is connected to one supply line via contact terminal 21 and the closure piece 22. Insulated from the jacket, a fastening piece 23 is inserted, which is connected to the other supply line ιγ via the terminal 30. The conductive thread 24, which carries the weight 25, is suspended from the fastening piece 23. At the lower end of the thread, a likewise flexible contact piece 26 is attached, which protrudes through a cutting edge 27 connected to the jacket 20. When the pendulum weight 25 begins to oscillate, as shown in Fig. 5, the contact piece 26 rests against the cutting edge 27 and allows the weight 25 to oscillate further even after the first contact. This results in very long contact with the pendulum oscillations generated, which enables a safe response of the alarm relay switched on in the circuit.

In the embodiment of the contact shown in Fig. 3, the contact piece is 26 attached below a pendulum weight 25 hanging on the thread 24. The conditions at the end of the Pendulum weight 25 is shown in Fig. 4. This arrangement can be achieved by appropriate dimensioning of the contact piece can be made extremely sensitive, as with a long contact piece 26 even very small pendulum oscillations lead to a contact.

On the fastening piece 23 of the contacts according to FIGS. 2 and 3, a resistor is wound in an insulated manner, one end of which is connected via the jacket 20 to the supply line 18 and the other end via the fastening piece and the terminal 30 to the supply line. This resistance is only provided in the pendulum contact, which is the last to be reached by the supply lines, while all other contacts are connected in parallel to this. In the rest state, therefore, only the resistor 28 is in the line, so that a very specific current flows through the relay connected to the line. If any of the contacts is actuated, then this specific resistance is always short-circuited, regardless of whether one or more contacts are actuated at the same time. This causes a certain increase in current on the line, which actuates the corresponding relays and triggers the alarm. _v

Patent claims:

■ i. Electrical safety system with pendulum contact bodies enclosing both contact parts, which are carried by individual threads, which like a curtain directly on a suspension rod Are arranged laterally displaceable and of which the electrical leads for the pendulum contact bodies are independent, characterized in that the threads (13) which can be slid like a curtain suspended pendulum contact body (14) through the electrical leads (17, 18) are coupled to one another at their upper and lower ends.

2. "Electrical security system according to claim 1, characterized in that the suspension rod (11) for the slidable suspended threads (13) has projections or depressions (16), which with the lateral displacement of the threads (13) at the same time a vertical movement cause the same.

3. Electrical security system according to claim 1 and 2, characterized in that that the pendulum contact body (14) over the point of application (21) of the same time the lower coupling (r8) forming a supply line is extended by rods (19) are.

1 sheet of drawings