AT36014B

AT36014B - Control switches for electrical machines and motors.

Info

Publication number: AT36014B
Authority: AT
Original assignee: Ganz Sche Electricitaets Actie
Priority date: 1907-09-09
Filing date: 1907-09-09
Publication date: 1909-01-25

Description

  

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  Steuerschalter für elektrische Maschinen und Motoren. 



   Vorliegende Erfindung betrifft eine Anordnung der Kontaktfinger an elektrischen Steuerschaltern und bezweckt einerseits die Zugänglichkeit und leichte   Auswechselbarkeit   sämtlicher Teile und andererseits ein wirksames Löschen der   hei Unterbrechung der Kon-     takte sich bildenden Funken zu   sichern. 



   In der Zeichnung ist ein Ausführungsbeispiel der neuen Anordnung dargestellt und zwar in Fig. 1 in Vorderansicht und in Fig. 2 im Grundriss. 



     ! ho Lagerung   der Kontaktfinger 1 erfolgt mittels offener,   hather Lager   der Finger, 
 EMI1.1 
 gebildet wird. An den zur Lagerung je eines Kontaktfingers dienenden, auf der Eisenstange   (i   unter Zwischenschaltung der Isolation 4 aufgereihten Träger 2, 3 sind die Kontaktfinger derart angeordnet, dass sie sich von der Lagorstelle 10, welche an dein von der Eisenstange 7 abgewendeten Ende der Träger befindet, gegen die   Eisenstange 7 ge-   richtet sind,   soda13   das Kontaktende der Kontaktfinger zwischen der Eisenstange 7 und der Schalttrommel, also in einem möglichst starken magnetischen   Felde zu liegen kommt.   
 EMI1.2 
 sonderen Eisenschirme, welche die Zulänglichkeit der Schalterteile sehr beeinträchtigen, angeordnet werden müssten.

   Zur Verstärkung der magnetischen Funkeblasewirkung ist es 
 EMI1.3 




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  Control switches for electrical machines and motors.



   The present invention relates to an arrangement of the contact fingers on electrical control switches and aims, on the one hand, to ensure accessibility and easy interchangeability of all parts and, on the other hand, to ensure effective extinction of the hot interruption of the contacts.



   In the drawing, an embodiment of the new arrangement is shown in Fig. 1 in front view and in Fig. 2 in plan.



     ! ho storage of the contact fingers 1 takes place by means of open, hather bearings of the fingers,
 EMI1.1
 is formed. On each of the supports 2, 3, which are used to support one contact finger and are lined up on the iron rod (i with the interposition of insulation 4, the contact fingers are arranged in such a way that they are located at the end of the support facing away from the iron rod 7 from the storage point 10 , are directed against the iron rod 7, so that the contact end of the contact fingers comes to lie between the iron rod 7 and the switching drum, that is, in a magnetic field that is as strong as possible.
 EMI1.2
 special iron screens, which greatly impair the adequacy of the switch parts, would have to be arranged.

   It is used to reinforce the magnetic spark-blowing effect
 EMI1.3

Claims

EMI2.1 1. Device on control switches for electrical machines and motors, consisting of a rotatable drum (17) and contact fingers (1) sliding on this, which are adjustable by means of a carrier (2) attached to an iron rod (7) parallel to the drum axis, characterized in that, that each finger with a notch (8) is pressed against a pin (10) of the support by a leaf spring (9), the tension of which can be regulated by two screws (5, 13) arranged on both sides of the pin, one of which ( 5) also serves to attach the carrier to the pole.

2. Embodiment of the device according to claim i, characterized by such an arrangement of the bearing (8, 10) on the carrier (2) that the contact end of the contact fingers between the switching drum (17) and the iron rod arranged as close as possible to the roller (7) zn is used for the purpose of bringing the interruption point in a magnetic field generated in a known manner by the solenoid (18) between the rod (17) and the drum.

3. Contact finger arrangement according to claim 2, characterized. that as EMI2.2