| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a timepiece movement comprising an escapement mechanism in which inertia of moving parts in an event of an impulse is very low. <P>SOLUTION: A timepiece movement includes an escapement device connected to a barrel by a going train and a spring balance as well as an escapement mechanism (1) including an impulse lever (8) and at least one regulating member (9). The impulse lever and the regulating member, which co-operate with the escapement mechanism, are controlled by control members (6.1, 6.2, 7.1) supported on a shaft of the spring balance. Between positions in which they co-operate with the escapement mechanism (1) and positions in which they do not co-operate with the escapement mechanism, the impulse lever and the regulating member move in two different planes forming an angle therebetween. <P>COPYRIGHT: (C)2013,JPO&INPIT |
