DE2716685A1 - Self-monitoring compact safety circuit - has two button unit to break current to protective coil and switch off load current - Google Patents

Self-monitoring compact safety circuit - has two button unit to break current to protective coil and switch off load current

Info

Publication number
DE2716685A1
DE2716685A1 DE19772716685 DE2716685A DE2716685A1 DE 2716685 A1 DE2716685 A1 DE 2716685A1 DE 19772716685 DE19772716685 DE 19772716685 DE 2716685 A DE2716685 A DE 2716685A DE 2716685 A1 DE2716685 A1 DE 2716685A1
Authority
DE
Germany
Prior art keywords
monitoring
current
self
safety switch
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19772716685
Other languages
German (de)
Inventor
Auf Nichtnennung Antrag
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19772716685 priority Critical patent/DE2716685A1/en
Publication of DE2716685A1 publication Critical patent/DE2716685A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/18—Control arrangements requiring the use of both hands
    • F16P3/20—Control arrangements requiring the use of both hands for electric control systems

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Keying Circuit Devices (AREA)

Abstract

The compact safety circuit has two operating buttons(3) which when depressed cause within a time span of 0.5 sec. the switching elements(8) to be activated. This in turn closes the current circuit to relay coils and the circuit to the protective coil. The unit is ready to be used without additional equipment and is designed to be self-monitoring through the arrangement and operational functioning of its components. Should one or both buttons be released then the current to the protective coil is broken and the load current is switched off.

Description

Zweihand-Sicherheitsschalter nach denTwo-hand safety switch according to the

Unfallverhütungsvorschriften.Accident prevention regulations.

Ein wesentlicher Vorteil einer Komakt-Zweihand-Sicherheitrschaltung liegt darin, daß sie ohne zusätzliche Aggregate einsatzbereit ist.A major advantage of a compact two-hand safety circuit lies in the fact that it is ready for use without additional units.

Die Neuerung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispils näher erläutert.The innovation is shown below using one in the drawing Execution examples explained in more detail.

Es zeigen: Fig. 1. Seitenansicht mit Ausschnitt C-D Fig. 2. Draufsicht Fig. 3. Draufsicht Schnitt A-B Fig. 4. Seitenansicht Funktionsbeschreibung Beim gleichzeitigen Betätigen beider Einrückknöpfe (Pos.3) innerhalb einer Zeitspanne von 0,5 sec. werden beidseitig über Pos. 4,5 und Schaltplatte Pos. 6 je 4 tck paketiert angeordnete Schaltelemente ( Pos. 8a-8d und Pos. 8e-8h betätigt.Über Schaltelemente 8a und 8e werden die Stromkreise zu den Relaispulen C2 und C3 geschlossen;beide Relais ziehen an,Kontakte der Relais schließen. Somit ist der Stromkreis zur Schützspule C1 über beide Relai-Kontakte und Schaltelement 8c geschlossen.Das Schütz zieht an,der Verbraucherstrom kann somit über die geschlossene Schützbrücke fließen.They show: Fig. 1. Side view with detail C-D Fig. 2. Top view Fig. 3. Top view section A-B Fig. 4. Side view functional description when Simultaneous actuation of both engagement buttons (item 3) within a period of time of 0.5 sec. are packaged in 4 pieces on both sides via item 4.5 and switch plate item 6 arranged switching elements (pos. 8a-8d and pos. 8e-8h actuated. Via switching elements 8a and 8e the circuits to the relay coils C2 and C3 are closed; both Relays pick up, relay contacts close. This is the circuit to the contactor coil C1 closed via both relay contacts and switching element 8c. The contactor picks up, the Consumer current can thus flow via the closed contactor bridge.

Im eingerücktem Zustand ist der Stromkreis zur Schützspule C1 so lange geschlossen,bis ein oder beide Relai-Kontakte selbsttätig nach kurzer Zeit öffnen.In the engaged state, the circuit to the contactor coil C1 is so long closed until one or both relay contacts open automatically after a short time.

Wird innerhalb der eingestellten Zeit ein oder beide Einrückknöpfe gelöst,wird der Stromkreis über Schaltelement 8a bzw.If within the set time one or both engagement buttons solved, the circuit is via switching element 8a resp.

8e sofort unterbrochen. ( s. Prinzipschaltplan Die Relai-Kontakte öffnen,der Stromkreis zur Schützspule cl wird unterbrochen,Verbraucherstrom wird abgeschaltet.8e interrupted immediately. (see principle circuit diagram the relay contacts open, the circuit to contactor coil cl is interrupted, consumer current is switched off.

80988310010 Es wurde erkannt,daß ein Schaltvorgang in jeder Schalteinheit nach kurzer Verzögerung unterbrochen werden muß.Dadurch wird erreicht,daß beim Festsetzen eines oder beider Einrückknöpfe der Stromkreis zur Schützspule C1 selbsttätig innerhalb kurzer Zeit unterbrochen wird.80988310010 It was recognized that a switching process in each switching unit must be interrupted after a short delay. This means that if one or both engagement buttons are locked, the circuit to contactor coil C1 is automatically interrupted within a short time.

Stromkreis bei Kurzzeitschaltung lt Prinzipschaltplan: R - Kontakt Relai C3 - Kontakt Relai C2 - Schützspule C1 Schaltelement 8e - Mp.Circuit for short-term switching according to the basic circuit diagram: R - contact Relai C3 - Contact Relai C2 - Contactor coil C1 Switching element 8e - Mp.

Stromkreis bei der Langzeitschaltung lt. Prinzipschaltplan: R - Schaltelement 8a - Schützbrücke - Schützspule C1 - Schaltelement 8e - Mp.Circuit for long-term switching according to the basic circuit diagram: R - switching element 8a - contactor bridge - contactor coil C1 - switching element 8e - Mp.

Beim Loslassen einer oder beider Einrückknöpfe wird der Stromkreis über Schaltelement 8a bzs 8e zur Schützspule C1 sofort unterbrochen;SchUtz fällt ab,Verbraucherstrom wird abgeschaltet.When one or both of the engagement buttons are released, the circuit will Immediately interrupted via switching element 8a or 8e to contactor coil C1; contactor drops off, consumer power is switched off.

Se lbstüberwachung Wie aus dem Prinzipschaltplan ersichtlich werden alle funktionsabhängigen Bauteile Uberwacht.Die Erfindung hat erkannt, daß zur Funktion der Selbstüberwachung alle Uberwachungs-Schaltelemente ( Pos.8b-8d sowie 8f-8h ) vor den Funktions-Schaltelementen Pos.8a und 8e schalten mUssen.Weiterhin wurde erkannt,daß beim Loslassen der Einrückknöpfe die Funktions-Schaltelemente 8a und 8e sowie SchUtz- und Relai-Kontakte vor den Uberwachungs-Schaltelementen öffnen müssen.Self-monitoring As can be seen from the basic circuit diagram all function-dependent components Uberwacht.Die invention has recognized that to function the self-monitoring all monitoring switching elements (items 8b-8d and 8f-8h) must switch in front of the functional switching elements items 8a and 8e recognized that when you release the engagement buttons, the function switching elements 8a and Open 8e as well as contactors and relay contacts in front of the monitoring switching elements have to.

Um diese Schaltfolge erreichen zu können,wurde ein zusätzliches Verzögerungselement ( Pos. 9 ) eingehaut,das eine Umschaltverzögerung von wenigen ms.herbeiführt.In order to be able to achieve this switching sequence, an additional delay element was added (Pos. 9), which causes a switchover delay of a few ms.

Die Uberwachung der Kontroll-Schaltelemente wird in Wechselwirkung von den überwachten Bauteilen und Kontroll-Leuchten übernommen.The monitoring of the control switching elements is interacting taken over by the monitored components and control lights.

Claims (5)

=Schutz ansprUche Kompakt-Zweihand-Sicherheitsschalter dadurch gekennzeichnet,daß er als Funktionseinheit ohne zusätzliche Aggregate einsatzbereit ist. = Protection claims compact two-hand safety switch characterized in that it is ready for use as a functional unit without additional units. 2. Zweihand-Sicherheitsschalter dadurch gekennzeichnet,daß durch das Zusammenwirken aller Bauteile als Funktionseinheit ein Strominpuls nur dann ausgelöst werden kann,wenn beide Einrückelemente innerhalb 0,5 sec. betätigt werden.2. Two-hand safety switch, characterized in that by the The interaction of all components as a functional unit only triggers a current pulse can be if both engagement elements are actuated within 0.5 seconds. 3. Zweihand-Sicherheitsschalter dadurch gekennzeichnet,daß durch das Zusammenwirken aller Bauteile als Funktionseinheit durch das Lösen auch nur eines Schaltelementes der Steuerbefehl sofort aufgehoben wird.3. Two-hand safety switch, characterized in that by the Interaction of all components as a functional unit by loosening only one Switching element the control command is canceled immediately. 4. Zweihand-Sicherheitsschalter nach Anspruch lbis3 dadurch gekennzeichnet,daß die Selbstuberwachung durch die Anordnung und Wirkungsweise aller Bauteile als Funktionseinheit wirksam wird.4. Two-hand safety switch according to claim lbis3, characterized in that self-monitoring through the arrangement and mode of operation of all components as a functional unit takes effect. 5. Zweihand-Sicherheitsschalter nach Anspruch 1 bis 4 dadurch gekennzeichnet,daß lt. Prinzipschaltplan sich: Überwachungselemente Pos. 8k u. 8d das Schütz Uberwachungselemente Pos. 8g u. 8c die Relai-Kontakte Uberwachungselemente Pos. 8b u. 8f die Schaltelemente 8a u.5. Two-hand safety switch according to claim 1 to 4, characterized in that According to the basic circuit diagram: Monitoring elements Pos. 8k and 8d the contactor monitoring elements Pos. 8g and 8c the relay contacts monitoring elements Pos. 8b and 8f the switching elements 8a and 8e in Wechselwirkung Uberwachen. 8e in interaction monitoring.
DE19772716685 1977-04-15 1977-04-15 Self-monitoring compact safety circuit - has two button unit to break current to protective coil and switch off load current Withdrawn DE2716685A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772716685 DE2716685A1 (en) 1977-04-15 1977-04-15 Self-monitoring compact safety circuit - has two button unit to break current to protective coil and switch off load current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772716685 DE2716685A1 (en) 1977-04-15 1977-04-15 Self-monitoring compact safety circuit - has two button unit to break current to protective coil and switch off load current

Publications (1)

Publication Number Publication Date
DE2716685A1 true DE2716685A1 (en) 1979-01-18

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ID=6006357

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772716685 Withdrawn DE2716685A1 (en) 1977-04-15 1977-04-15 Self-monitoring compact safety circuit - has two button unit to break current to protective coil and switch off load current

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235217A (en) * 1991-07-24 1993-08-10 Isb Ltd. Capacitive press control actuation system
DE4427759A1 (en) * 1994-08-05 1996-02-15 Manfred Bauer Two-handed operating device for wood splitting tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235217A (en) * 1991-07-24 1993-08-10 Isb Ltd. Capacitive press control actuation system
DE4427759A1 (en) * 1994-08-05 1996-02-15 Manfred Bauer Two-handed operating device for wood splitting tool
DE4427759C2 (en) * 1994-08-05 1999-01-14 Manfred Bauer Device for two-hand operation

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