Title:
DEVICE FOR CONTROLLING LAMP FOR ROLLING STOCK
Document Type and Number:
Japanese Patent JPS62234750
Kind Code:
A
Abstract:
PURPOSE:To turn on and off room lamps and room stand-by lights in a simple and reliable manner, by providing the conditions such that, when room lamps are turned on by switch operation, room stand-by lights with not be turned on, a fact which is realized by combining an operating key-switch into the system. CONSTITUTION:When a room-lamp turn-on command is issued through a lamp operating switch 20, a lamp control circuit 60 operates to turn on a room lamp 40. At this time, a room stand-by light 50 is not turned on. Of an operation key-switch 80 is turned on at this time, a lamp control circuit 60 is operated via both a reset circuit 90 and a timing control circuit 70 so that the room stand-by light is turned on. If the a.c. power source enters an unimpressed state in this state, the room lamp 40 is turned off. Then, a timing control circuit 70 comes into action and, after a certain period of time has elapsed, all he lamp control circuits 60 are opened, thereby turning off the room stand-by light 50. On the other hand, when a pantograph lowering command is issued through a pantograph operation switch 30, all the room lamps 40 and the room stand-by lights 50 are turned off all at once.
Inventors:
FUJIMURA NOBUO
Application Number:
JP7654886A
Publication Date:
October 15, 1987
Filing Date:
April 04, 1986
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B60Q3/02; B60L1/14; B61D29/00; (IPC1-7): B60L1/14; B60Q3/02; B61D29/00
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)
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