Title:
ALARM SOUND DEVICE
Document Type and Number:
Japanese Patent JP2019197510
Kind Code:
A
Abstract:
To provide an alarm sound device capable of emitting an alarm with sound of a prescribed sound pressure level or higher even when at least either one of a transmitter and a pilot lamp is integrated with the alarm sound device for miniaturization.SOLUTION: An alarm sound device includes at least: a front panel to which at least one of a push button of a transmitter and a pilot lamp as components of a fire warning installation is attached to a central part thereof so as to be visible externally; a speaker having a diaphragm; a cabinet defining a sound volume on at least one surface side of the diaphragm; and a duct or horn defining a sound path in communication with the sound volume of the cabinet. The front panel is equipped with the duct or the horn attached from its back surface side, and a sound hole which is an end of the sound path and discharges an alarm tone discharged from the speaker to an outer space is provided near the central part in the vicinity of the push button or the pilot lamp.SELECTED DRAWING: Figure 1
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Inventors:
TEIKA KOICHI
Application Number:
JP2018092610A
Publication Date:
November 14, 2019
Filing Date:
May 11, 2018
Export Citation:
Assignee:
ONKYO KK
International Classes:
G08B17/00; G08B23/00; H04R1/28; H04R1/30; H04R3/00