Title:
RAISABLE AND LOWERABLE LIGHTING SYSTEM
Document Type and Number:
Japanese Patent JP3310698
Kind Code:
B2
Abstract:
PURPOSE: To locate a liminaire at a desired height in a simple structure by layering plural gear plates raise and lower the luminaire and properly using the gear plates corresponding to raising and lowering.
CONSTITUTION: When a wind-up drum 2 is rotated by driving a motor, an eccentric cum 5 engaged with a shaft 6 is rotationally moved and the end of an operating pawl 7 fitted to the eccentric cum 5 is elliptically moved, so that disc-like gear plates 8, 9 are given regularly rotational movement to elevate a lighting equipment 4 at a preset height. At this time, the upper gear plate 8 has number of ruggednesses 10 on the outer periphery of the upper face so that when an elevation is short the height is adjusted with the gear plate 8, while the lower gear plate 9 has a circular groove so that when an elevation is long the height is adjusted with the gear plate 9. It is thus possible to located the luminaire 4 at a desired height.
Inventors:
Masaki Horikoshi
Hirofumi Inoue
Toshinori Morishige
Hirofumi Inoue
Toshinori Morishige
Application Number:
JP19468292A
Publication Date:
August 05, 2002
Filing Date:
June 30, 1992
Export Citation:
Assignee:
Iwasaki Electric Co., Ltd.
Starteng Industry Co., Ltd.
Starteng Industry Co., Ltd.
International Classes:
F21V21/36; (IPC1-7): F21V21/36
Domestic Patent References:
| JP62176001A | ||||
| JP462710A | ||||
| JP1236510A |
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