| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact smoke sensor for preventing an intrusion object such as an insect or dust or the like from intruding into a casing, and for making smoke smoothly circulate in the casing. SOLUTION: A smoke sensor includes the casing having an inflow port to which smoke inflows on a peripheral side face section, and configured to issue an alarm based on a signal to be output from a sensor which has sensed the smoke. This smoke sensor includes a comb column for preventing any intrusion object which can intrude from the inflow port. COPYRIGHT: (C)2009,JPO&INPIT |
