| 摘要 |
<p>A spring-driven power source for low-voltage electrical load, such as a portable flashlight. The power source contains a series of modular spring chambers in which there are spiral coil springs which are wound by hand using a rotatable grip on the end of the assembly. The last spring chamber in the series is connected to the first of a series of modular gear chambers which contain epicyclic gear trains. The last of the gear chambers is connected to a generator which supplies the power for the electrical load, such as a flashlight bulb. The series of gear chambers provides a greatly stepped-up shaft speed at the generator, so as to permit the spiral coil springs to unwind at a comparatively slow rate.</p> |
