| 摘要 |
<p>The invention provides a magnetic switch device characterized by long service life and capability of detecting two direction movement of an operation body. The magnetic switch is provided with a magnet (13) arranged on an operation body (11) which is operated in a rotated manner and a magnetic sensor (15) which is used to detect magnetic field orientation change of the magnet, wherein the magnet is arranged opposite to an operation part (11t) across the rotation shaft line (Kj) of the operation body, the magnet is magnetized to form different magnetic poles along the protruding direction of the operation part, and the magnetic sensor is arranged opposite to the rotation shaft line (Kj) through the magnet. In a neutral position where the operation body is rotated, the magnetic field which is generated in the place where the magnetic sensor is arranged faces towards the radial direction of the rotating operation body. When the operation body is operated in a rotated manner in the neutral position, two magnetic fields generated in the magnetic sensor arrangement place when the operation body is rotated to one direction and when the operation body is rotated to the other direction are opposite in orientation direction, respectively facing to the radial direction and opposite to the radial direction.</p> |
