DE8109119U1 - Switching device, in particular circuit breaker with toggle lever - Google Patents

Description

SIEMENS AKTIENGESELLSCHAFT Our mark

Berlin and Munich VPA 81 G 4 O 1 8 DE

Switching device, in particular circuit breaker, with toggle lever

The innovation relates to a switching device, in particular 1Q circuit breaker, whose switch lock has a switch on the housing mounted rocker arm can be actuated by hand, which is in its rest position when the switch lock is unlatched by a spring is postponed.

When mounting the circuit breaker, which acts as a line circuit breaker or can be designed as a fault current circuit breaker, is the rocker arm and the one resetting it Insert and tension the spring. Special holding devices are required for the spring to hold it Not to be lost during the assembly process. This and especially the tensioning of the spring require some skill.

The 3rd innovation is based on the task of a switching device of the type described above to be further developed so that the spring is largely held automatically and during assembly is tensioned.

The solution to the described problem is that the spring is designed as a torsion spring and in an annular groove is mounted in the shaft of the rocker arm, the spring ends resting on stops of the rocker arm and one spring end protrudes, and that adjacent to the shaft and the protruding spring end one to the contact surface of the rocker arm wedge-shaped rising sliding surface is formed on which this spring end rests.

No 2 Shi / 03/06/1981

94 0344g

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The spring "kaiin so pretensioned initially in the" ring groove kept pastures And when inserting the rocker arm into the " ßehäUse spans - it automatically continues on the "wedge = shaped sliding surface. This sliding surface can be partially divided be formed on the housing itself "

The innovation should be roughly schematic based on one in the drawing reproduced execution example explained in more detail Will;

III Fig. 1 is a switching device in the vicinity of the rocker arm shown aborted, reproduced. In Fig. 2, a rocker arm of the switching device is shown alone.

In Fig. 3 a switching device is shown partially broken away, reproduced *

The handle designed as a rocker arm 1 for actuating the switching device by hand, according to FIG. 1, is mounted on a bearing pin 2 molded onto the housing. This storage is also referred to as flying storage. The rocker arm 1 receives a spring designed as a torsion spring 3 in an annular groove 5 of its shaft, the spring ends 6, 7 resting on stops 8, 9 of the rocker arm. One of the spring ends, the spring end 7, is in front of it. Adjacent to the shaft and the protruding spring end 7 of the rocker arm; 1 a wedge-shaped rising sliding surface 4 is formed, on which this spring end 7 rests. When the tilt lever i 1 is inserted into the housing of the switching device by axially plugging% on the journal 2, same I tet the above Federen.de 7 on the wedge-shaped area-\ before and 4 along the spring is tensioned thereby. The |

In the clamped state, rocker arm 1 rests on one side | of the support surface 10 of the housing and on the other hand to | 5 a cover to be attached, or at Änformungen the cover at.

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The rocker arm gives a rod 11 ätlf the "Söhaltege" advises j or, on its lock, a, you sliding surface 4 can be formed directly on the housing 12, as in §s in 1 is veiailsdihaUiiGht.

In Fig. 2 illustrates how the Drehfedef 3 in the RingiiUt S of the rocker arm 1 and its stops 8 Uild 9 already pre-tensioned when the tilting hoist is not inserted And is kept safe *

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In Fig * 3 is a circuit breaker designed as a circuit breaker Switchgear reproduced connection terminals are marked with 13 and 14 denotes * The special advantage of an apprenticeship understandably, the innovation also becomes indolent, if the switching device is otherwise in a different way> may also be built without a key switch j *

2 claims for protection

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Sehältgefät} irisbeaoiidere with rocker arm

Schältgefätj iiisbesöndere circuit breaker _} whose switch lock can be actuated by hand via a toggle lever mounted on the housing when the switch lock is opened

fO is returned to its rest position by a spring * Es (It is provided that the spring is used as a torsion spring (3) =

det And is mounted in an annular groove (5) in the shaft of the rocker arm (1) * with the Fedefendeii (6, 7) ari stops C 8 j 9) of the rocker arm (1) and a spring end (7) protrudes, and that adjacent To the shaft and to the protruding spring end (7) a sliding surface (4) which rises in a wedge shape towards the contact surface (10) of the rocker arm CD is formed, on which this spring end (7) rests *

FIG. 1

25th

Claims (2)

• · no-r · M · · · · ■ »• · · · · ι fi •« · · · it! ! S f f I J t * * ■ r β · If Il 11 - 4 - VPA 81 G 4 O 1 8 OE Protection claims 1. Switching device, in particular circuit breaker, its switch lock can be operated by hand via a rocker arm mounted on the housing, which is activated when the switch lock is unlatched from a spring is returned to its rest position, characterized in that the spring is designed as a torsion spring (3) and in an annular groove (53 is mounted in the shaft of the rocker arm CD, the spring ends (6, 73 on stops (8, 93 of the rocker arm Cl D) lie and a spring end (7) protrudes, and that adjacent to the shaft and to the protruding spring end C7) one for Contact surface (103 of the rocker arm CO wedge-shaped rising Sliding surface C43 is formed on which this spring end C73 rests. 2. Schaltgprät according to claim 1, characterized in that that the sliding surface C43 is formed on the housing O23. 20th 9 449