Loudspeaker device

Abstract

To make it possible to prevent fall from the helmet in a mounted state, and make the mounting on the helmet easier. Provided is a loudspeaker device that includes a body including: an actuator that operates in response to an input drive signal, and an attachment part that is attachable to an adapter mounted on a helmet and including an engagement part; and a lock lever including a locking part, the lock lever being rotatably supported by the body, and designed so as to allow, when rotated, the locking part to be engaged with the engagement part. The loudspeaker device is designed to be attachable and detachable to and from the adapter. The body is designed to be locked on the adapter, as a result of engagement of the locking part with the engagement part. With such design, since mounting via the adapter on the helmet is made available by engaging the locking part with the engagement part of the adapter mounted on the helmet, and the body is locked on the adapter, so that the loudspeaker device allows for easy mounting on the helmet, while being prevented in a mounted state from falling from the helmet.

Dependencies are inferred from the claim text.