Music box having a generator
AssigneeKabushiki Kaisha Sankyo Seiki Seisakusho
InventorTadashi Kamijima
Life of this patent
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Abstract
A music box having an electricity generating function includes a mechanism for using a stored energy of a spiral spring to drive a drum at an increased speed via a worm shaft, an annular magnet fixed on the worm shaft and an electricity-generating coil opposed to the outer circumferential margin of the magnet to generate electricity in a non-contacting configuration so that the energy of the spiral spring is used to not only play music but also generate electricity.
Claims8
A music box which can generate electricity, comprising a drive mechanism, electricity-generating means driven by said drive mechanism for generating electricity, music generating means driven by said drive mechanism for producing a sequence of audible sounds at a production speed, damper means for preventing said production speed from exceeding a predetermined speed, distributon means having a plurality of outputs and operatively coupled to said electricity-generating means for intermittently supplying electricity from said electricity-generating means to each of said outputs according to a predetermined sequence synchronized to said sequence of audible sounds, and a display assembly having a plurality of selectively actuable visible display elements which are each connected to and selectively actuated by a respective said output of said distributor means.
A music box which can generate electricity, comprising a drive mechanism, electricity-generating means driven by said drive mechanism for generating an electric signal, music generating means driven by said drive mechanism for producing a sequence of audible sounds at a production speed, damper means for preventing said production speed from exceeding a predetermined speed, and a circuit having selectively actuable transistor switching means for supplying electric power from a power source to a load, said electric signal from said electricity-generating means being supplied to said switching means to control actuation and deactuation of said switching means.
Dependencies are inferred from the claim text.