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Patent Searching and Data


Title:
CONTROL DEVICE FOR HEATER
Document Type and Number:
Japanese Patent JPH0719498
Kind Code:
A
Abstract:

PURPOSE: To enable a presence of a person to be confirmed and to enable an operation of a heater to be controlled by a method wherein a collector type infra-red ray sensor is fixed to the heater.

CONSTITUTION: A heater 2 and a collector type infra-red ray sensor 3 are fixed to a frame of a heater. There are provided a,counting circuit 6 for counting an output of the infrared ray sensor 3; a count timer 7 for setting a count time; a discriminating circuit 8 operated when the count timer 7 times up; and a timer circuit 4 for resetting in response to an output signal of the discriminating circuit 8. Then, the discriminating circuit 8 performs a resetting of the timer circuit 4 when the number of outputs of the collector type infrared ray sensor 3 during the setting time of the count timer 7 exceeds a predetermined set number and an operation of the heater 2 is instructed only for a period of timer setting time.


Inventors:
MURAOKA ATSUSHI
Application Number:
JP18903693A
Publication Date:
January 20, 1995
Filing Date:
June 30, 1993
Export Citation:
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Assignee:
TOYOTOMI KOGYO CO LTD
International Classes:
F24C7/04; (IPC1-7): F24C7/04



 
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