Wooden drum forming device, has resonating chamber that is open in its lower part, where lower part is placed on plane surface, and has material transmitting waves of strips to surface

摘要

The device comprises of a resonating chamber (2) including two wooden strips (3) in its upper part opposite to the ground. The resonating chamber is open in its lower part, where the lower part is placed on the plane surface. The lower part includes a material (1) transmitting waves of the wooden strips to the surface.