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US 10,833,246 B2Granted
Piezoelectric sensor for bicycle component
AssigneeShimano Inc.
InventorsMasahiko Fukuda, Yoshiyuki Watanabe, Takaya Masuda
Life of this patent
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Abstract
A piezoelectric material contains ferroelectric particles and an adhesive resin. The ratio of the ferroelectric particles relative to the total mass of the ferroelectric particles and the adhesive resin is 40 mass % or greater and 98 mass % or less.
Claims10
A bicycle component comprising:
- a ferroelectric film having power generating characteristics, and
- one or more electrodes at least partially embedded in the ferroelectric film, the ferroelectric film having a first thickness and a second thickness which is different from the first thickness.
A bicycle component, comprising:
- an insulation film formed on a surface of a main body of the bicycle component;
- a first electrode formed on the insulation film;
- a ferroelectric film having power generating characteristics and connected to the first electrode;
- and
- a second electrode connected to the ferroelectric film.
2 more elements
A bicycle component, comprising:
- a shaft body;
- an insulation film formed on a surface of the shaft body;
- a plurality of output electrodes spaced apart by gaps from one another and arranged on the insulation film around the shaft body;
- a ferroelectric film having power generating characteristics and connected to the output electrodes, wherein the gaps between adjacent ones of the output electrodes are filled with the ferroelectric film;
- and
- a common electrode connected to the ferroelectric film.
3 more elements
Dependencies are inferred from the claim text.