Patent · US Expired

Position-sensor system for motor-vehicle door latch

US5890384A · kind A · utility

18Cited by

6References

6Claims

0Family size

Assignee

Kiekert AG · DE

Inventors

Peter Bartel · Hattingen, DE
Johannes-Theodor Menke · Velbert, DE
Thorsten Torkowski · Herne, DE

Key dates

Filing date	Oct 16, 1997
Grant date	Apr 6, 1999
Priority date	—
Expiry date	Oct 16, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T70/7057
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A key cylinder rotatable about an axis and a motor-vehicle door latch having a housing are used with a position-sensing system having a selector nut made of a nonferromagnetic material and coaxial with and coupled to the key cylinder for joint rotation about the axis therewith, an actuating permanent magnet imbedded in the selector nut and movable in an orbit about the axis on rotation of the selector nut about the axis, and a hall-effect sensor mounted on the latch housing at a small spacing from the orbit.

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