| 摘要 |
Device making it possible to detect the presence of pressure in the tyres relating to cars and rolling vehicles, characterised in that it includes a movable part fixed to the rim of the wheel, which is to contain a magnet free to translate whose movement is brought about via the pressure of the air in the tyre, coming from the opening 10, going into the chamber 38. When the pressure in the tyre is zero, the chamber 38 is not under pressure and the spring 8 moves the magnet towards the stop 9. The position of the magnet which depends on the pressure of the tyre makes a value of the magnetic field close to the fixed part correspond. <IMAGE>
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