Mechanism for driving an indicator for a timepiece

Mechanism for driving an indicator for a timepiece, comprising:

• a mobile (22;
• 23) for driving the indicator,
• a first lever (16) mounted about a first pivot (17) and comprising a beak (20;
• 21) intended to cooperate with a toothing of the mobile (22;
• 23) to move said mobile,
• a first cam (2) arranged to rotate the first lever (16) about the first pivot (17),
• a second lever (11) mounted about a second pivot (12) and to which the first pivot (17) is rigidly connected,
• a second cam (3) arranged to rotate the second lever (11) about the second pivot (12), and
• elastic means (10, 13) for maintaining the cooperation between the levers (16, 11) and the cams (2, 3),
• the levers (16, 11) and the cams (2, 3) being arranged so that the beak (20;
• 21) of the first lever (16) cyclically describes a closed curve, each cycle comprising a first motion during which the beak (20;
• 21) leaves the toothing of the mobile (22;
• 23) without changing the angular position of said mobile and a second motion during which the beak (20;
• 21) re-enters the toothing of the mobile (22;
• 23) to move said mobile.