Patent · US Expired

Commutating rotary switch

US6933632B2 · kind B2 · utility

12Cited by

3References

7Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Georg Braml · Landsberg, DE
Ernst-Rudolf Lübkert · Landsberg, DE

Key dates

Filing date	May 8, 2003
Grant date	Aug 23, 2005
Priority date	—
Expiry date	Jul 29, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH02K5/225
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A turning-pivoting commutating rotary switch (1) with brush guides (2) for reversing the direction of rotation of a universal motor, which has two stator contacts (3a, 3b) each making contact with a contact rail (5a, 5b) running partially peripherally at at least one contact point (4a, 4b, 4c), which are conducting connected with the two diametrically opposing brush guides (2), wherein a contact rail (5a) with two contact points (4a, 4b) extends over at least a half periphery and wherein both stator contacts (4a, 3b), at which at least one contact point (4a, 4b, 4c) can be rotatably switchable at a contact rail (5a, 5b) running partially peripherally, are arranged on only one side of the stator (6).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.