Device with a lock cylinder and a switching device for various electrical functions, especially an ignition starter switch for motor vehicles
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United States of America Patent
Stats
-
May 22, 2001
Grant Date -
N/A
app pub date -
Jun 28, 1999
filing date -
Nov 5, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device with a key-actuated closing cylinder and a switch triggers, when a key is turned therein, a particular electric function in a motor vehicle. In order to achieve a particularly compact and reliable device, at least two sensors are arranged inside the cylinder housing of the closing cylinder in zones that are mutually offset in the longitudinal direction. The sensor outputs are connected to a common evaluation device. The cylinder core has in corresponding axial zones several permanent magnets at particular points of its periphery. These points are selected so that the evaluation device detects different codes at the sensor outputs in the different working positions of the cylinder core and clearly identifies with these codes the corresponding working positions. The evaluation device thus acts as an electronic switch which on the basis of the sensed code triggers the electric function that corresponds to the momentary working position.
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