Patent ID: 6731072
Filing Date: 2004-05-04
Classification: B60Q,B62J,H02K

Abstract:
A light generator for a rotatable object, said light generator comprising:a generator housing adapted to be secured to the rotatable object for co-rotation therewith, said generator housing having a front housing part, a rear housing part, and an axle hole that extends from said front housing part through said rear housing part; an axle mounted rotatably in said axle hole and having a coupling end that extends out of said axle hole at said rear housing part; a magnet disposed in said generator housing and mounted co-rotatably on said axle; a coil device mounted in said generator housing and including a spool that surrounds said magnet, a coil wound around said spool, and a pair of conductive caps capped on an assembly of said spool and said coil, each of said conductive caps being connected electrically to a respective end of said coil; a lamp unit mounted on said generator housing and connected electrically to said conductive caps of said coil device; and a resistance unit mounted on said coupling end of said axle to resist axial rotation of said axle, said resistance unit including an elongate link plate having a connecting portion that is sleeved on said coupling end of said axle, and a distal portion that is opposite to said connecting portion and that includes a weighted portion; wherein rotation of said generator housing with the rotatable object results in rotation of said coil device relative to said magnet, thereby inducing electrical currents in said coil device that are provided to said lamp unit so as to enable said lamp unit to generate a light output.