Mazda Motor Corporation

Kenta Ako

Hirofumi Saka

Naohiro Sera

Kazuto Fujii

A vehicle back door includes a back door main body having a window opening and a back door pane attached to the window opening. The back door main body has a speaker. The speaker is disposed below the back door pane and the angle &#x3b1;1 formed by a vehicle height direction axis and a central axis of the speaker is set to a value smaller than the inclination angle &#x3b1;2 of the back door pane with respect to the vehicle height direction axis. The sound emitted by the speaker is reflected by the back door pane and then transmitted to the front part of the vehicle interior.

Growing community of inventors

Hatsukaichi, Japan

Kenta Ako