| 摘要 |
A music box having a base, a spring box, a sound mechanism, a speed regulator and a gear transmission system. The spring box contains a driving gear and a spring leaf for winding up. The sound mechanism contains a metal comb and a cylinder. Sounds are produced when the teeth on the comb are plucked by pins protruding from the cylinder. The gear transmission system transfers the spring recoil through the driving gear to the cylinder and the speed regulator. The music box also contains a support for locating the speed regulator and the gear mechanism. The support and the base are firmly assembled. Also, the speed regulator includes a constant speed mechanism.
|
