Patent ID: 7404667
Filing Date: 2008-07-29
Classification: G04C,H01H

Abstract:
1. A magnetic control device of a timepiece comprising: a moveable control member that can be actuated manually from outside of the timepiece; and a first magnet that is fixed to the control member, the first magnet is provided in order to be displaced in translation on a trajectory connecting at least three predefined positions when a wearer of the timepiece manipulates the control member; detection means situated inside the timepiece and provided in order to detect, amongst the three predefined positions, the position occupied by the first magnet, the detection means comprising at least one first magnetic sensor and one second magnetic sensor that are able to be in a first state or a second state, and are disposed in the vicinity of the trajectory of the first magnet in order to cooperate with the first magnet; a sealed tube that has a wall produced in a non-magnetic material, the sealed tube comprising a distal blind end that extends towards an inside of the timepiece and a proximal end that opens towards the outside of the timepiece, wherein the control member has a general form of a stem provided in order to slide inside the sealed tube and wherein the first magnet is provided in order to be displaced inside the tube solid with the stem, the first magnetic sensor and the second magnetic sensor are disposed spaced-apart along the sealed tube in order that the three predefined positions of the first magnet are respectively associated with three different combinations of a first sensor state with a second sensor state.