Electric power generator for a bicycle
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United States of America Patent
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Nov 8, 2011
Grant Date -
Nov 19, 2009
app pub date -
Jan 29, 2009
filing date -
May 16, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vibration electric power generator includes an iron core having a coil wound therearound, a magnet member relatively moved with respect to the iron core by vibrations caused during running of a bicycle; and a nonmagnetic member fixed to the iron core and being in close contact with the magnet member. A plurality of magnets are stacked such that identical poles face each other. Switching is realized, by the vibrations caused during the running of the bicycle, between a state in which a first protrusion of the iron core is attracted and brought into contact with a north pole magnetism collecting and permeative plate and a second protrusion of the iron core is attracted and brought into contact with a south pole magnetism collecting and permeative plate and a state in which the second protrusion is attracted and brought into contact with a north pole magnetism collecting and permeative plate and the first protrusion is attracted and brought into contact with a south pole magnetism collecting and permeative plate.
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