US 6,283,603 B1Granted

Lighting device on a stage

AssigneeSuperstar Lighting Co., Ltd.

InventorYu-Chuan Lin

Life of this patent

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Abstract

A lighting device is composed of a case, a driving device, a power source contacting device, a power source rotary device, an actuating arm, and at least a light ball. When the power source is turned on to light up the lighting device, the motor of the driving device starts to rotate the rotary device and the actuating arm synchronously. Accordingly, the lighting ball is rotated horizontally. In addition, a gear disk of the light ball rolls along a gear ring on the case such that the light ball can rotate vertically as well.

Claims13

Dependent claims

A lighting device on a stage, comprising

a case, having an upper case part and a lower case part engaging with each other, and a top face of the upper case having a central shaft hole and having a facial gear ring surrounding the periphery thereof;
a driving device, being a motor fixedly mounted on the lower case part with an output shaft extending outward;
a power source contacting device, having a base plate astride above the motor, the base plate at both sides thereof being disposed with a first contact electrode and a second electrode respectively, said first and second electrodes at the bottom thereof respectively pivotally engaging with a first lead wire and a second lead wire of power supply, and at the top thereof respectively having an exposed electrode terminal respectively;
a power source rotary device, having a rotary shaft being associated with and moving with the output shaft, the rotary shaft at an end portion having a shaft recession and around the other end portion thereof having an insulating disk, the insulating disk at a bottom face thereof having a first guide ring and a second guide ring with unequal diameters corresponding to the two terminals respectively so as to contact with the terminals, both the guide rings contacting with a third lead wire and a fourth lead wire at an end thereof respectively, and the other end of the third and fourth lead wires passing through the shaft groove respectively;
an actuating arm, being “T” shape, having an arm stem at a lower part thereof associated with the rotary shaft, and having a guide hole for current leads at an upper part thereof;
at least a light ball, being disposed at an end of the actuating arm, having a light bulb and two current leads therein, said two current leads passing through the guide hole and pivotally connecting with the third and the fourth lead wires respectively to constitute a closed circuit, and having an engaging end with a gear disk to correspond to and to mesh with the gear ring on the case vertically;
whereby, at the time of the light ball being turned on, the motor turns to rotate the power source rotary device and the actuating arm synchronously so as to rotate the light ball horizontally;
and the gear disk on the light ball rolls along the gear ring to make the light ball rotate vertically.

5 more elements

Dependencies are inferred from the claim text.

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Abstract

A lighting device on a stage, comprising

a case, having an upper case part and a lower case part engaging with each other, and a top face of the upper case having a central shaft hole and having a facial gear ring surrounding the periphery thereof;
a driving device, being a motor fixedly mounted on the lower case part with an output shaft extending outward;
a power source contacting device, having a base plate astride above the motor, the base plate at both sides thereof being disposed with a first contact electrode and a second electrode respectively, said first and second electrodes at the bottom thereof respectively pivotally engaging with a first lead wire and a second lead wire of power supply, and at the top thereof respectively having an exposed electrode terminal respectively;
a power source rotary device, having a rotary shaft being associated with and moving with the output shaft, the rotary shaft at an end portion having a shaft recession and around the other end portion thereof having an insulating disk, the insulating disk at a bottom face thereof having a first guide ring and a second guide ring with unequal diameters corresponding to the two terminals respectively so as to contact with the terminals, both the guide rings contacting with a third lead wire and a fourth lead wire at an end thereof respectively, and the other end of the third and fourth lead wires passing through the shaft groove respectively;
an actuating arm, being “T” shape, having an arm stem at a lower part thereof associated with the rotary shaft, and having a guide hole for current leads at an upper part thereof;
at least a light ball, being disposed at an end of the actuating arm, having a light bulb and two current leads therein, said two current leads passing through the guide hole and pivotally connecting with the third and the fourth lead wires respectively to constitute a closed circuit, and having an engaging end with a gear disk to correspond to and to mesh with the gear ring on the case vertically;
whereby, at the time of the light ball being turned on, the motor turns to rotate the power source rotary device and the actuating arm synchronously so as to rotate the light ball horizontally;
and the gear disk on the light ball rolls along the gear ring to make the light ball rotate vertically.

5 more elements