Search International and National Patent Collections
|1. (WO2018138955) SOUND GENERATOR|
|Applicants:||ANDEN CO., LTD.
This sound generator for generating sound by vibrating a diaphragm (72) is provided with: a housing (1) having formed therein a first space (5) which is open to the atmosphere through a sound release hole (84), and also having formed therein a second space (6) separated from the first space by the diaphragm; and a closure plate (28) disposed in the first space so as to face the diaphragm while being separated from the diaphragm. When the diaphragm is displaced toward the first space by the difference in pressure between the first space and the second space, the diaphragm comes into contact with the closure plate and is restricted to deform.