Beam-rotary lamp
AssigneeSasaki Electric Manufac. Co. Ltd.
InventorShozo Hitora
Life of this patent
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Abstract
In a beam-rotary lamp which has a reflector revolving around an electric lamp, an improvement is presented herein which is characterized by that a lamp unit is set together with a power unit comprising a reflector driving motor inside a closed helmet-shaped space, wherein the space is formed with a transparent bowl-shaped globe and an egg-shaped flat chassis put on said globe.
Claims4
A beam-rotary lamp comprising a substantially egg-shaped chassis;
- a transparent bowl-shaped globe, said globe being fixed to said chassis and defining therewith an enclosed space having a front and a rear portion, said rear portion being of less height and narrower than said front portion;
- a lamp unit including a lamp, a reflector and a rotor, said reflector being supported by said rotor, said rotor being arranged substantially horizontally and said lamp unit being positioned in said front portion of said space;
- a power unit located in said rear portion of said space, said power unit including a motor having a horizontally extending drive shaft;
- a socket, said lamp being set into said socket;
- a supporting boss projecting vertically downward from said boss and fixed to said chassis, said rotor being slidably, rotatable positioned over said boss for rotation about a vertical axis, said rotor having a round brim;
- a rubber ring positioned on said brim;
- and a corrugated spring washer positioned about said boss to maintain said rubber ring in friction contact with said horizontally extending drive shaft.
A beam-rotary lamp in accordance with either claim 2 or claim 7, including a coil spring positioned together with said corrugated spring washer to increase the repelling effect of said washer.
Dependencies are inferred from the claim text.