Tourbillon mechanism for a timepiece movement

Abstract

The invention relates to a tourbillon mechanism (1) for a timepiece movement, the tourbillon mechanism comprising: —a rotary support (3) pivotably mounted on a base (5) so as to pivot about a first axis of rotation (A1) and arranged to be rotated by a drive source(S); —an oscillator (7) pivotably mounted on the rotary support (3) so as to pivot about a second axis of rotation (A2); —a blocking member (11) mounted on the rotary support (3) and arranged to block and release rotations of the rotary support (3) under the control of the rotations of the oscillator (7); —an escape wheel (9) mounted so as to rotate as one with the base (5) and arranged to co-operate with the blocking member (11); —a direct impulse member (15) mounted on the second axis of rotation (A2) and arranged to co-operate with the escape wheel (9) so as to deliver an impulse to the oscillator (7) during the pivoting of the rotary support (3).

Dependencies are inferred from the claim text.