Luminous float
AssigneesOhumi Tsusho Kabushiki Kaisha, Iron Works Co., Ltd.
InventorsTakeo Kuboyama, Kenichi Shigetomi, Hideki Noda, Yasu Osaka, Yuji Osaka
Life of this patent
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Abstract
A luminous float includes a float body, a resistance plate and a light-emitting device, and causes the light-emitting device to emit light by electricity generated by a dynamo through the relative motions of the float body and the resistance plate, which are caused by waves and tidal currents. In a preferred embodiment, a contractible and extensible bellows provided at the bottom of the float body is connected with the resistance plate through a connecting element. Furthermore, one end of a spring is coupled to an inner member of the float body, and the other end of the spring is coupled to the bottom of the bellows through a coupling means.
Claims2
A luminous float comprising a float body;
- a bellows which is provided at the bottom of the float body and which is capable of contracting and extending with the inside thereof being shut off from the outside;
- a resistance plate;
- a connecting means adapted to connect the bottom of the bellows with the resistance plate;
- a spring of which one end is coupled to an inner member of the float body;
- a coupling means adapted to couple the other end of the spring to the bottom of the bellows;
- a dynamo having a rotation drive shaft;
- a motion conversion mechanism which converts reciprocation of the coupling means into a rotary motion of the rotation drive shaft of the dynamo;
- and a light-emitting device connected to the dynamo.
A luminous float comprising:
- a float body;
- a spring of which one end is coupled to an inner member of the float body;
- a spindle attached to the other end of the spring;
- a resistance plate;
- a connecting means adapted to connect the spindle with the resistance plate;
- a dynamo having a rotation drive shaft;
- a pinion which engages with the spindle;
- a one-way rotary device disposed between the pinion and the rotation drive shaft of the dynamo;
- and a light-emitting device connected to the output terminals of the dynamo;
- wherein the spindle is provided with a cylindrical body having a long opening made in a side face thereof and with a chain fixed inside the cylindrical body, said spindle being constructed such that the chain engages with a sprocket.
Dependencies are inferred from the claim text.