Timepiece comprising a tourbillon.

作者：Polychronis Nakis Karapatis | Marc Stranczl | Benoît Légeret

申请者：Montres Breguet S.A.

发明人：Polychronis Nakis Karapatis | Marc Stranczl | Benoît Légeret 年：2022,

语种：英语

公开国家：CH 国家：瑞士

专利申请号：CH6012019 专利申请日期：2019-05-07

公开(公告)号：CH715049B1 公开日期：2022-07-29

优先权号：CH7342018 | 2018CH-0000734

分类号：G04C 5/00 20060101AFI20220729BHCH 国际主分类号：G04C 5/00 20060101AFI20220729BHCH 国际分类号：G04C-5/00 | G04B-15/06 | G04B-17/28 CPC分类号：G04C-005/005 | G04B-015/06 | G04B-017/285

法律状态：GRANTED

摘要： The timepiece comprises a tourbillon comprising a cage (6) which carries a balance (16), a hairspring (15) and a magnetic escapement device (18), the latter comprising an escapement wheel set (20), comprising at least one annular magnetic structure (26), and further at least one magnetic element (33) coupled with the magnetic structure and having an oscillating motion synchronous with the oscillation of the mechanical resonator (14). The magnetic exhaust (18) is arranged so as to present alternately phases of accumulation of energy, resulting from a conversion of mechanical energy supplied by the barrel into potential magnetic energy in the magnetic exhaust (18), and phases of transfer of energy accumulated in the magnetic exhaust (18) to the mechanical resonator (14). During the energy transfer phases, the magnetic element (33) is subjected to a radial magnetic force, relative to the axis of rotation of the exhaust wheel set (20), so that the magnetic escapement (18) then converts into mechanical energy magnetic potential energy accumulated in the previous energy accumulation phase in order to be able to sustain the oscillation of the mechanical resonator (14). The invention makes it possible to increase the oscillation frequency of the mechanical resonator (14) and thus the accuracy of operation.