Steering-wheel power generation device
Provided is a steering-wheel power generation device that, when operating in-vehicle equipment wirelessly from an operation unit provided on a steering wheel, can supply power having high power generation efficiency and space efficiency in line with practical use. A ring-shaped rack and a gear power generator fitted to the rack are provided in the gripping portion of the steering wheel, and a guide groove portion is provided on an inner wall of the gripping portion, thereby enabling a guide portion to absorb shock other than the shock in the power generation direction, and enabling stable power supply even when the steering wheel is being rotated.
1. A steering-wheel power generation device, comprising:
a gripping portion having a circular outer shape and formed into a cylindrical shape;
a curved guide case which is provided inside the gripping portion;
a ring-shaped rack which is provided on an inner wall of the gripping portion;
a case-side pinion gear which is fitted to the rack; and
a gear power generator which is provided in the guide case.
2. The steering-wheel power generation device according to claim 1 , wherein power is supplied from the gear power generator via a flexible printed wiring board.
3. The steering-wheel power generation device according to claim 1 , wherein the gripping portion includes ring-shaped guide grooves therein fitted to a guide portion of a cover forming the guide case.
4. The steering-wheel power generation device according to claim 3 , further comprising a power generation motor arranged in the gripping portion and having a motor input shaft and a motor-side pinion gear provided on the motor input shaft.
5. The steering-wheel power generation device according to claim 4 , further comprising a crown gear connected to the case-side pinion gear through a case-side input shaft, configured to mesh with the motor-side pinion gear and transmit power to the motor-side pinion gear.