DE535533C - Electrical installation circuit breaker, in particular in the form of a safety plug - Google Patents

Description

PΛTE N CLAIM:

Electrical installation switch, in particular in the form of a fuse plug, characterized in that on the magnetic core (1) guide pins (6,7) are attached to the armature (8) and the driver (15) and this in turn serve as a guide for the shift rod (13), and also the locking lever (2) - for the switching rod (13) in the magnetic core (1) is pivotably mounted.

*) The patent seeker stated as the inventor:

Karl Pape in Berlin-Südende.

1 sheet of drawings

BERLlKw PRINTED IN THE REICHSDRUCKEREI

Claims (1)

5B55S3 The circuit breaker according to ^{1 of} the present invention is distinguished from the known devices of this type by particularly simple assembly, since apart from two guide pins or the like, only parts that are already present are used to combine all switching and tripping devices, the selected arrangement of the switching devices. and trip elements result in a tightly packed type of switch. The switch is therefore particularly suitable for installation in, for example, porcelain housings in the form of screw plugs, without encountering difficulties in inserting and securing the switch parts due to the porcelain body, which cannot always be manufactured with sufficient accuracy and only has a very limited space to accommodate the switch. The distinguishing feature of the new automatic switch is that guide pins are attached to the magnetic core which serve as guides for the armature and the driver and these in turn serve as a guide for the shift rod, and the locking lever for the shift rod is pivotably mounted in the magnet core. The invention is illustrated using an exemplary embodiment in the drawing. Fig. Ι shows the release and switching parts omitting the housing, which for the invention is irrelevant. Fig. 2 shows a single part of the release mechanism. With ι the magnetic core is referred to, in which the locking lever 2 is rotatably mounted is. At the lower end of the core there are two guide pins 6 and 7 on those marked 6 ' Places expediently fastened by pinching. Slides on these guide pins the armature 8, the movement of which is limited by threaded washers 9 and 10. the Springs 11 and 12 seek to remove armature 8 from the magnet. The free ends the guide pins 6 and 7 carry the compression springs 19 and 20, which with the aid of a driver 15 move the shift rod 13 downwards and thereby the contact bridge Strive to bring 17 into the on position; in this position the shift rod held against the detent 23 by the nose 22 jumping in. Triggering can only take place when the driver 15 has been pushed into the position shown in Fig. 2. This is achieved e.g. B. by a movable "foot contact (not shown), which when screwing the automatic switch into its socket, the head 21 of the switching rod 13 releases. This switching off can take place in a known manner electromagnetically or thermally; electromagnetically in that the armature 8 attracted by the magnetic core 1 presses with its pin 24 against the nose 25, so that the pawl engagement at 22 and 23 is canceled. In order to secure the latch engagement, a spring made of steel wire, denoted by 4 and resting in a bore, presses against the upper end of the lever 2. The contact bridge 17 is removed by the action of the spring 16 and takes the linkage 13 with it. The thermal release ¹ can be brought about by a bimetallic tongue or the like pressing in the direction of the arrow against the end 26 of the lever 2 protruding through the base 2 "j , the engagement at 22 and 23 likewise being canceled. The lever 2 can also be set up for manual operation.