| 摘要 |
<p>The invention relates to a driving mechanism for a clock movement including a staff (2), a drum (1) and a rotary member (3) mounted on the staff, mutually rotatably mobile and each including gear teeth (24, 23) on the periphery thereof, and first and second stacked hairsprings (25, 26), the outer ends of which are respectively fixed to the drum and to the rotary member, and the bottom ends of which are connected to one another to connect the springs in series. The drum and the rotary member are interlocked at least in the area of the peripheral wall (22) of the drum such as jointly to form a closed case containing the springs.</p> |
