DE473292C - When changing the length of an extended protective wire with the help of a friction clutch, contact device for an alarm circuit - Google Patents
When changing the length of an extended protective wire with the help of a friction clutch, contact device for an alarm circuitInfo
- Publication number
- DE473292C DE473292C DEE35559D DEE0035559D DE473292C DE 473292 C DE473292 C DE 473292C DE E35559 D DEE35559 D DE E35559D DE E0035559 D DEE0035559 D DE E0035559D DE 473292 C DE473292 C DE 473292C
- Authority
- DE
- Germany
- Prior art keywords
- length
- contact device
- friction clutch
- changing
- protective wire
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
- H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
Description
Bei Längenänderung eines ausgespannten Schutzdrahtes mit Hilfe einer Reibungskupplung ansprechende Kontakteinrichtung für einen Alarmstromkreis Die Erfindung bezieht sich auf eine empfindliche Kontakteinrichtung, die bei Längenänderungeines ausgespannten Schutzdrahtes mit Hilfe einer Reibungskupplung anspricht und den. Alarmstromkreis schließt. Die Erfindung besteht darin, daß der Alarmdraht mit seinem einen Ende an den zu über= wachenden beweglichen Teil (Tür, Fenster usw.) angebracht ist, während sein anderes Ende, nämlich sein Drehpunkt, außerhalb des Drehpunktes dieses beweglichen Teiles angeordnet wird, also beispielsweise auf der festen Umrahmung der Tür oder des Fensters, dessen Bewegung überwacht werden soll.When changing the length of a tensioned protective wire with the help of a Friction clutch responsive contact device for an alarm circuit The invention refers to a sensitive contact device that, when changing length, of a tensioned protective wire responds with the help of a friction clutch and the. Alarm circuit closes. The invention is that the alarm wire with his one end attached to the moving part to be monitored (door, window, etc.) is, while its other end, namely its pivot point, outside the pivot point this movable part is arranged, for example on the fixed frame the door or window whose movement is to be monitored.
Eine solche Anordnung zeitigt den Vorteil, daß die Kontakteinrichtung selbst durch das Schließen des zu überwachenden. Teiles in die arbeitsbereite Stellung gebracht wird, während bei sonstigen Anordnungen nach dem Schließen des zu überwachenden Teiles erst der Schutzdraht in die arbeitsbereite Lage gebracht werden mußte, so daß leicht Fehleinstellungen erfolgen konnten. Durch eine geringe Bewegung dies zu überwachenden Teiles, z. B. der Tür, wird infolge des Auseinanderfalls der beiden Drehpunkte die Länge ides Schutzdrahtes verändert, wodurch die Kontaktgabe eintritt.Such an arrangement has the advantage that the contact device even by closing the one to be monitored. Part in the ready-to-work position is brought, while with other arrangements after the closing of the monitored Partly the protective wire first had to be brought into the ready-to-work position, so that incorrect settings could easily occur. With a slight movement this part to be monitored, e.g. B. the door, is due to the falling apart of the two Pivot points change the length of the protective wire, whereby contact occurs.
Die Zeichnung stellt eine beispielsweise Anordnung einer solchen Kontakteinrichtung an einer Tür im Grundriß dar. Die Tür T ist um ihre Achse A drehbar. Der DrehpunktA( für den Draht D der Kontakteinrichtung I( liegt außerhalb der AChsieA. Der DrahtD ist von der z. B. unter Wirkung einer Spiralfeder stehenden Rolle R nachdem AufhängepunktH an der Tür gespannt. Bei Drehung der Tür T um das, Stück b gelangt der Aufhängepunkt H auf einem um die Achsre A mit dem Radius T geschlagenen Kreisbogen nach H'. Diese Bewegung liegt auf keiner, um den Punkt A' geschlagenen Kreisbogen, es ergibt sich vielmehr für die Länge des, Drahtes D .ein Längenunterschied zwischen Al(, H' und A', H", wobei. A , H" gleich der früheren Länge A(, H ist. Der Draht D wird um das Stück d unter Wirkung der auf die Rolle R reinwirkenden. Spiralfeder auf die Rolle R aufgewickelt, wobei die letztere sich dreht und dabei mittels einer Reibungskupplung den jeweiligen Alarmkontakt steuert, so daß der betreffende Alarmapparat anspricht.The drawing shows an example of an arrangement of such a contact device on a door in plan. The door T is rotatable about its axis A. The pivot point A (for the wire D of the contact device I (lies outside the AChsieA. The wire D is tensioned by the roller R, which is under the action of a spiral spring, for example, after the suspension point H on the door. When the door T rotates around the, piece b The suspension point H is on an arc of a circle towards H 'drawn around the axis A with the radius T. This movement does not lie on any arc drawn around the point A'; rather, there is a length difference between Al ( , H 'and A', H ", where. A , H" is equal to the previous length A (, H. The wire D is wound around the piece d under the action of the spiral spring acting on the roll R on the roll R, the latter rotating and thereby controlling the respective alarm contact by means of a friction clutch, so that the alarm apparatus in question responds.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE35559D DE473292C (en) | When changing the length of an extended protective wire with the help of a friction clutch, contact device for an alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE35559D DE473292C (en) | When changing the length of an extended protective wire with the help of a friction clutch, contact device for an alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE473292C true DE473292C (en) | 1929-03-16 |
Family
ID=7077457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEE35559D Expired DE473292C (en) | When changing the length of an extended protective wire with the help of a friction clutch, contact device for an alarm circuit |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE473292C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0445531A1 (en) * | 1990-03-09 | 1991-09-11 | Theodor Kromer GmbH & Co.KG Spezialfabrik für Sicherheitsschlösser | Supervision device of the closed position of a pivoting shutter, especially of a safe door |
-
0
- DE DEE35559D patent/DE473292C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0445531A1 (en) * | 1990-03-09 | 1991-09-11 | Theodor Kromer GmbH & Co.KG Spezialfabrik für Sicherheitsschlösser | Supervision device of the closed position of a pivoting shutter, especially of a safe door |
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