US 2004/0070473 A1Published application

Low -voltage power switch with a bearing arrangement for a switch shaft

AssigneeSiemens Aktiengesellschaft

InventorsTorsten Ahlert, Ludvik Godesa, Marc Liebetruth

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Abstract

The invention relates to a low-voltage power switch, wherein the drive device (16) is fixed by means of a supporting framework (17,19) and the associated switch shaft (8) is fixed, by means of two axially external bearing sub-assemblies, to the switch pole sub-assembly (1) In order to ensure that the fitting corresponds to a position based on separate examination of the drive device, the bearing arrangement has an additional, axially central bearing sub-assembly. Said bearing sub-assembly consists of two half-shells (25 and 26) which are axially fixed by means of guide surfaces (45 or 55,56,57 and 58), whereby one is radially supported on the switch pole sub-assembly (1) and the other is radially supported on the supporting framework (17,18) of the drive device (16).

Claims4

Dependent claims

A low-voltage circuit breaker with a switching pole assembly (1) which holds at least one contact arrangement (3), a supporting mechanism (17, 18) which holds a drive apparatus (16), a switching shaft (8) for transmission of a drive force from the drive apparatus to the contact arrangement, and a bearing arrangement for the switching shaft,

in which the bearing arrangement has at least two axially outer bearing assemblies and one axially central bearing assembly,
with the switching shaft being mounted on the switching pole assembly by means of the two axially outer bearing assemblies, characterized in that, if the supporting mechanism (17, 18) is mounted on the switching pole assembly (1), the axially central bearing assembly has two bearing half shells (25;
26), one of which is supported radially on the switching pole assembly and the other of which is supported radially on the supporting mechanism, and is fixed axially via guide surfaces (45;
55, 56, 57, 58).

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 10/467,940Filed 14 Aug 2003
Priority: DE 201-03-230.916 Mar 2001
Published: 15 Apr 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16C 35/02
Rigid support of bearing units; Housings, e.g. caps, covers: in the case of sliding-contact bearings
F16C 33/08
Sliding surface mainly made of metal: attachment of brasses, bushes or linings to the bearing housing
H01H 3/32
Mechanisms for operating contacts: driving mechanisms, i.e. for transmitting driving force to the contacts
H01H 2003/326
Driving mechanisms, i.e. for transmitting driving force to the contacts: using bearings