Patent · US Expired

Pole wheel comprising a hollow magnet body and a retaining part

US6462450B1 · kind B1 · utility

14Cited by

9References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Walter Haussecker · Bühl, DE
Mathis Raecke · Karlsruhe, DE
Friedrich-Wilhelm Dreier · Baden-Baden, DE
Rainer Kurzmann · Achern, DE

Key dates

Filing date	Jul 25, 2000
Grant date	Oct 8, 2002
Priority date	—
Expiry date	Jul 25, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH02K1/2726
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A pole wheel of the type driven in rotation by a shaft employs a sensor system disposed on the pole wheel for detecting rotations of the shaft. The pole wheel includes a first component in the form of a hollow magnet body and a second component that is disposed as a retaining part for the first component and is seated firmly on the shaft and is embodied integrally, for the sake of streamlined connection to the first component, with connecting means. Recesses, which for instance can be embodied in groovelike fashion, may be disposed on the second component, that is, the retaining part seated solidly on the shaft, and the first component is injected molded onto the second component, creating positive engagement connecting means comprising the material of the magnet body.

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